CN105364694A - Machining method for smoothing and removing burrs on surfaces of workpieces based on shear thickening mechanism - Google Patents
Machining method for smoothing and removing burrs on surfaces of workpieces based on shear thickening mechanism Download PDFInfo
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- CN105364694A CN105364694A CN201510681254.9A CN201510681254A CN105364694A CN 105364694 A CN105364694 A CN 105364694A CN 201510681254 A CN201510681254 A CN 201510681254A CN 105364694 A CN105364694 A CN 105364694A
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- working fluid
- shear thickening
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- workpieces
- burrs
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/003—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor whereby the workpieces are mounted on a holder and are immersed in the abrasive material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
Abstract
The invention provides a machining method for smoothing and removing burrs on the surfaces of workpieces based on a shear thickening mechanism. The method includes the following steps that firstly, the to-be-machined workpieces with the burrs are fixed to workpiece clamps, machining liquid is added to a machining pool, and the to-be-machined faces with the burrs of the to-be-machined workpieces with the burrs are soaked in the machining liquid; and secondly, a rotary disc drive mechanism is started, workpiece clamp drive mechanisms are started at the same time, and the workpieces move relative to the machining liquid and apply shearing force to the machining liquid, so that the shear thickening machining liquid generates a shear thickening phenomenon under the action of the shearing force, the shear thickening phenomenon becomes more obvious along with the increase of the rotation speed of the workpieces, the viscosity of the machining liquid is increased sharply, the machining liquid shows the characteristic as solid instantly, a flexible fixed grinding tool is formed in the burr position of the surface of each workpiece, the micro-cutting effect on the burrs of protrusions on the surfaces of the workpieces is achieved through abrasive particles, and the burrs on the surfaces of the workpieces are removed. By the adoption of the method, the burr removing effect is good, the application range is wide, and cost is low.
Description
Technical field
The present invention relates to Precision Machining field, especially a kind of surface of the work polishing deburring method.
Background technology
In the machining removing material, the workpiece material plastic deformation caused by removal material power, and the ridge stretching out workpiece two adjacently situated surfaces is called burr.Debarring process in fine finishining belongs to surface of the work skin processing category, is generally the final finishing step in part manufacture process.Therefore, the deburring operation in fine finishining not only needs to remove the burr of surface of the work, also will make the surface quality that workpiece keeps good; Certainly, the surface quality of workpiece can also preferably be improved.So not only deburring is effective, working (machining) efficiency is high, the scope of application is comparatively wide, implementation cost is lower, but also the deburring method significantly can improving the surface quality of workpiece is ideal deburring method.
At present, study Burr Problem from the angle of system engineering abroad, and set up " deburring association of the world ", vigorously implement " burr engineering ", common burr removing method has vibrator deburring method, rolling Trimming, electrochemical deburring method, shake cylinder and alter light Trimming, chemical deburring method, heat energy Trimming, extrusion honing Trimming, spray Trimming, all more or less there are some drawbacks in these burr removing methods, not ideal enough.
Summary of the invention
In order to the deficiency that the deburring effect overcoming existing deburring method is poor, working (machining) efficiency is lower, the scope of application is narrower, cost is higher, the invention provides a kind of surface of the work polishing deburring method, not only deburring is effective, working (machining) efficiency is high for the method, the scope of application is comparatively wide, implementation cost is lower, but also significantly can improve the surface quality of workpiece.
As follows in order to solve the problems of the technologies described above technical scheme of the present invention:
Based on a surface of the work polishing deburring method for shear thickening mechanism, adopt the non-newtonian fluid with shear thickening effect containing abrasive material as working fluid; In process, the relative working fluid motion of workpiece, applies shearing force to working fluid, until the burr of surface of the work is removed, obtains product.
Aforesaid based in the surface of the work polishing deburring method of shear thickening mechanism, the material of described workpiece is ordinary steel, medium carbon steel, steel alloy, bearing steel, stainless steel or spring steel.
Further, described working fluid is made up of the water of the polyhydroxy aldehyde high polymer of 20 ~ 40 parts, the abrasive material of 35 ~ 50 parts, the chemical active agent of 3 ~ 5 parts and 30 ~ 40 parts, and consumption is weight portion; Described abrasive size is 2 ~ 15 μm; Described abrasive material is made up of the two or more materials in boron carbide, carborundum, aluminium oxide; Described chemical active agent is made up of the two or more materials in lauryl sulfosuccinic acid monoester disodium, Coconut Fatty Acid Monoethanolamide sulfosuccinic acid monoesters disodium, alcohol ether phosphate, Coconut Fatty Acid Monoethanolamide, Cocoamidopropyl betaine, lauryl both sexes sodium acetate.Research finds, under above-mentioned processing conditions, the working (machining) efficiency of the inventive method is higher.
Further, described abrasive material is made up of the aluminium oxide of the boron carbide of 50% (percentage by weight), the carborundum and 25% (percentage by weight) of 25% (percentage by weight), wherein, the particle diameter of boron carbide is 2 ~ 10 μm, the particle diameter of carborundum is 5 ~ 15 μm, and the particle diameter of aluminium oxide is 8 ~ 15 μm; Described chemical active agent is made up of the lauryl both sexes sodium acetate of the alcohol ether phosphate and 40% (percentage by weight) of 60% (percentage by weight).Research finds further, and under above-mentioned processing conditions, the working (machining) efficiency of the inventive method can be further enhanced.
Further again, in process, the temperature of working fluid is 35 ~ 45 DEG C.Experiment shows, under this temperature conditions, the working (machining) efficiency of the inventive method is higher.
As the improvement of the aforesaid surface of the work polishing deburring method based on shear thickening mechanism, in process, workpiece does planetary motion relative to working fluid, namely in workpiece rotation, working fluid rotates with processing pond in processing pond, and workpiece rotates relative to the axis of rotation of working fluid, the rotational velocity of workpiece is 100 ~ 1000r/min, and the rotary speed of working fluid is 60r/min ~ 300r/min.Experimental result shows, under above-mentioned processing conditions, the working (machining) efficiency of the inventive method is higher.
As preferably, in process, the rotational velocity of workpiece is 200 ~ 600r/min, and the rotary speed of working fluid is 80r/min ~ 120r/min.
Compared with prior art, the invention provides a kind of brand-new surface of the work polishing deburring method, and be provided with following useful technique effect.(1) processing effect is good, and efficiency is high; (2) applied widely, can be used in carrying out deburring to the surface of the work of various curve form; (3) implementation cost is low; (4) surface quality of workpiece can significantly be improved.
Accompanying drawing explanation
Fig. 1 is the overall schematic of the inventive method to special-shaped workpiece surface deburring equipment.
Fig. 2 is the inventive method based on the micromodel schematic diagram of shear thickening mechanism to special-shaped workpiece surface deburring, and wherein, (a) represents shear thickening does not occur; B () represents the shear thickening starting stage; C () represents that shear thickening strengthens; D () represents that shear thickening weakens.
Reference numeral: 1-rotary disc driving mechanism; 2-rotating disk; 3-work piece holder; 4-workpiece 5-working fluid; 6-circulation line; 7-pump; 8-device for supplying; 9-filter; 10-processes pond; 11-work piece holder driving mechanism; 12-burr; 13-abrasive particle; The flexible set grinding tool of 14-; 15-steering mechanism.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
See figures.1.and.2, a kind of surface of the work polishing deburring method based on shear thickening mechanism, adopts the non-newtonian fluid with shear thickening effect containing abrasive material as working fluid; In process, the relative working fluid motion of workpiece, applies shearing force to working fluid, until the burr of surface of the work is removed, obtains product.
With reference to Fig. 2 (a) ~ (d), in process, working fluid is under the effect of shear stress and shear strain, apparent viscosity (shear stress under certain shear and the ratio of shear rate) increases rapidly, the hold of abrasive particle is strengthened greatly, a flexibility " set grinding tool " 14 is formed at Working position, such abrasive particle produces micro mechanics effect to surface of the work, the burr of surface of the work is removed rapidly, realize efficient, the high-quality deburring object of surface of the work, meanwhile, workpiece surface quality also can be greatly improved (roughness reduction); The flow behavior of working fluid ensure that " set grinding tool " that it is formed can all keep the good goodness of fit with the curved surface of different curvature, thus the surface of the work deburring of the various curve forms such as plane, cylinder, aspheric surface, shaped face can be used for, make said method applied widely; Working fluid cost of the present invention is lower, and the present invention is easy to implement, so, the feature that said method also has implementation cost low.
With reference to Fig. 1, based on the device that the Complex Surface Part polishing deburring method of shear thickening mechanism adopts, comprise processing pond 10, work piece holder 3, rotating disk 2 and work piece holder driving mechanism 11, described work piece holder 3 is positioned at described processing pond 10, described work piece holder 3 is arranged on the below of work piece holder driving mechanism 11, described work piece holder driving mechanism 11 is arranged on rotating disk 2, described rotating disk 2 is connected with rotary disc driving mechanism 1, working fluid 5 is placed in described processing pond 10, described working fluid 5 is for being mixed with the shear thickening working fluid with shear thickening effect of abrasive particle.
Further, the drive end of described work piece holder driving mechanism installs steering mechanism 15, and described work piece holder 3 is installed by described steering mechanism 15.
Further again, described equipment also comprises the circulatory system, the described circulatory system comprises circulation line 6, the temperature control of shear thickening working fluid and filter 9, shear thickening working fluid device for supplying 8 and pump 7, the lower part outlet in described processing pond 10 is connected with the import of circulation line 6, the outlet of described circulation line 6 is connected with the upper entrance in described processing pond 10, and described circulation line 6 flows to installation pump 7, shear thickening working fluid device for supplying 8 and the temperature control of shear thickening working fluid and filter 9 successively along working fluid.
This circulatory system is connected with described processing pond 10, and described working fluid 5 is being extracted out from the bottom in described processing pond 10 and inputting from top, described processing pond 10 in the circulatory system.
Described shear thickening working fluid filter 9 comprises the filter screen and interpolation that filter bulky grain grinding or the feed inlet and outlet taking out shear thickening working fluid.
Experiment shows, when said method is used for carrying out surperficial deburring to the workpiece of the materials such as ordinary steel, medium carbon steel, steel alloy, bearing steel, stainless steel or spring steel, not only effect is better, and efficiency is higher.
Further, described working fluid is made up of the water of the polyhydroxy aldehyde high polymer of 20 ~ 40 parts, the abrasive material of 35 ~ 50 parts, the chemical active agent of 3 ~ 5 parts and 30 ~ 40 parts, and consumption is weight portion; Described abrasive size is 2 ~ 15 μm; Described abrasive material is made up of the two or more materials in boron carbide, carborundum, aluminium oxide; Described chemical active agent is made up of the two or more materials in lauryl sulfosuccinic acid monoester disodium Coconut Fatty Acid Monoethanolamide sulfosuccinic acid monoesters disodium, alcohol ether phosphate, Coconut Fatty Acid Monoethanolamide, Cocoamidopropyl betaine, lauryl both sexes sodium acetate.As preferably, described abrasive material is made up of the aluminium oxide of the boron carbide of 50% (percentage by weight), the carborundum and 25% (percentage by weight) of 25% (percentage by weight), wherein, the particle diameter of boron carbide is 2 ~ 10 μm, the particle diameter of carborundum is 5 ~ 15 μm, and the particle diameter of aluminium oxide is 8 ~ 15 μm; Described chemical active agent is made up of the lauryl both sexes sodium acetate of the alcohol ether phosphate and 40% (percentage by weight) of 60% (percentage by weight).Research finds, under above-mentioned processing conditions, the working (machining) efficiency of the inventive method is higher.Under the processing conditions of table 1, selected Abrasive Particle Size is within described scope, and after carrying out 25 minutes deburrings, the burr of surface of the work is removed under microscopic visualization completely, and roughness quickly falls to Ra0.03 μm by Ra0.679 μm.
Table 1
In process, the temperature of best controlled working liquid is 35 ~ 45 DEG C.Research finds, under this temperature processing conditions, the working (machining) efficiency of the inventive method is higher.Under the processing conditions of table 2, when working fluid temperature is 35 DEG C, after carrying out 25 minutes deburrings, the burr of surface of the work is removed under microscopic visualization completely, and roughness quickly falls to Ra0.08 μm by Ra0.549 μm; When working fluid temperature is 40 DEG C, after carrying out 25 minutes deburrings, the burr of surface of the work is removed under microscopic visualization completely, and roughness quickly falls to Ra0.04 μm by Ra0.549 μm; When working fluid temperature is 45 DEG C, after carrying out 25 minutes deburrings, the burr of surface of the work is removed under microscopic visualization completely, and roughness quickly falls to Ra0.09 μm by Ra0.549 μm.Thus can proper working fluid temperature when being 40 DEG C, working (machining) efficiency is the highest.
Table 2
In process, workpiece does planetary motion relative to working fluid, and namely in workpiece rotation, working fluid rotates with processing pond in processing pond (processing pond is for placing working fluid), and workpiece rotates relative to the axis of rotation of working fluid; The rotational velocity of workpiece is 400 ~ 3000r/min, and the rotary speed of working fluid is 60r/min ~ 300r/min.Under above-mentioned processing conditions, the working (machining) efficiency of the inventive method is higher.As preferably, in process, the rotational velocity of workpiece is 1000 ~ 1500r/min, and the rotary speed of working fluid is 80r/min ~ 120r/min.Research finds, under this moving condition, the working (machining) efficiency of the inventive method is higher.Under the processing conditions of following table 3, under other conditions are constant, working fluid rotary speed is 80r/min, workpiece rotational velocity is 1000r/min, after carrying out 15 minutes deburrings, the burr of surface of the work is removed under microscopic visualization completely, and roughness quickly falls to Ra0.10 μm by Ra0.839 μm; Working fluid rotary speed is 100r/min, and workpiece rotational velocity is 1200r/min, and after carrying out 15 minutes deburrings, the burr of surface of the work is removed under microscopic visualization completely, and roughness quickly falls to Ra0.06 μm by Ra0.839 μm; Working fluid rotary speed is 120r/min, and workpiece rotational velocity is 1500r/min, and after carrying out 15 minutes deburrings, the burr of surface of the work is removed under microscopic visualization completely, and roughness quickly falls to Ra0.09 μm by Ra0.839 μm;
Table 3
The generality of the above-mentioned invention to relating in the application describes and the description of its detailed description of the invention be should not be understood as to the restriction formed this invention.Those skilled in the art's disclosing according to the application, can under the prerequisite without prejudice to involved invention inscape, above-mentioned generality is described or/and the public technology feature in detailed description of the invention (comprising embodiment) increases, reduces or combines, forms other the technical scheme belonging to described invention.
Claims (7)
1. based on a surface of the work polishing deburring method for shear thickening mechanism, it is characterized in that: adopt the non-newtonian fluid with shear thickening effect containing abrasive material as working fluid; In process, the relative working fluid motion of workpiece, applies shearing force to working fluid, until the burr of surface of the work is removed, obtains product.
2., as claimed in claim 1 based on the surface of the work polishing deburring method of shear thickening mechanism, it is characterized in that: the material of described workpiece is ordinary steel, medium carbon steel, steel alloy, bearing steel, stainless steel or spring steel.
3. as claimed in claim 2 based on the surface of the work polishing deburring method of shear thickening mechanism, it is characterized in that: described working fluid is made up of the water of the polyhydroxy aldehyde high polymer of 20 ~ 40 parts, the abrasive material of 35 ~ 50 parts, the chemical active agent of 3 ~ 5 parts and 30 ~ 40 parts, and consumption is weight portion; Described abrasive size is 2 ~ 15 μm; Described abrasive material is made up of the two or more materials in boron carbide, carborundum, aluminium oxide; Described chemical active agent is made up of the two or more materials in lauryl sulfosuccinic acid monoester disodium, Coconut Fatty Acid Monoethanolamide sulfosuccinic acid monoesters disodium, alcohol ether phosphate, Coconut Fatty Acid Monoethanolamide, Cocoamidopropyl betaine, lauryl both sexes sodium acetate.
4. as claimed in claim 3 based on the surface of the work polishing deburring method of shear thickening mechanism, it is characterized in that: described abrasive material by the boron carbide of 50%, the carborundum of 25% and 25% aluminium oxide form, wherein, the particle diameter of boron carbide is 2 ~ 10 μm, the particle diameter of carborundum is 5 ~ 15 μm, and the particle diameter of aluminium oxide is 8 ~ 15 μm; Described chemical active agent is made up of the alcohol ether phosphate of 60% and the lauryl both sexes sodium acetate of 40%.
5., as claimed in claim 4 based on the surface of the work polishing deburring method of shear thickening mechanism, it is characterized in that: in process, the temperature of working fluid is 35 ~ 40 DEG C.
6. the surface of the work polishing deburring method based on shear thickening mechanism as described in claim as arbitrary in claim 2 to 5, it is characterized in that: workpiece does planetary motion relative to working fluid, namely in workpiece rotation, working fluid rotates with processing pond in processing pond, and workpiece rotates relative to the axis of rotation of working fluid, the rotational velocity of workpiece is 100 ~ 1000r/min, and the rotary speed of working fluid is 60r/min ~ 300r/min.
7., as claimed in claim 6 based on the surface of the work polishing deburring method of shear thickening mechanism, it is characterized in that: in process, the rotational velocity of workpiece is 200 ~ 600r/min, and the rotary speed of working fluid is 80r/min ~ 120r/min.
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Cited By (7)
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| CN107617967A (en) * | 2017-08-30 | 2018-01-23 | 浙江工业大学 | The rotatable honing fixture of chain transmission type drill point |
| CN109605203A (en) * | 2018-12-11 | 2019-04-12 | 华侨大学 | A kind of dragging polishing method of abnormity seal stone |
| CN109877658A (en) * | 2019-03-26 | 2019-06-14 | 湖南科技大学 | A kind of shear thickening-electrophoresis composite polishing device |
| CN111546066A (en) * | 2020-05-15 | 2020-08-18 | 山东理工大学 | Cutting and grinding integrated processing system and method for surface microstructure |
| CN112318214A (en) * | 2020-09-18 | 2021-02-05 | 浙江工业大学 | Chemical enhancement type force-flow-rheology-based groove piece chamfering and polishing method |
| CN112643523A (en) * | 2020-12-17 | 2021-04-13 | 新昌浙江工业大学科学技术研究院 | Force flow polishing device for spherical parts with through holes |
| CN113001391A (en) * | 2021-04-13 | 2021-06-22 | 中国科学院微电子研究所 | Grinding device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109877658A (en) * | 2019-03-26 | 2019-06-14 | 湖南科技大学 | A kind of shear thickening-electrophoresis composite polishing device |
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| CN112318214A (en) * | 2020-09-18 | 2021-02-05 | 浙江工业大学 | Chemical enhancement type force-flow-rheology-based groove piece chamfering and polishing method |
| CN112643523A (en) * | 2020-12-17 | 2021-04-13 | 新昌浙江工业大学科学技术研究院 | Force flow polishing device for spherical parts with through holes |
| CN113001391A (en) * | 2021-04-13 | 2021-06-22 | 中国科学院微电子研究所 | Grinding device and method |
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Application publication date: 20160302 |