CN102886441A

CN102886441A - Die bending device in full-automatic numerical control hydraulic pipe bender

Info

Publication number: CN102886441A
Application number: CN2012103892105A
Authority: CN
Inventors: 徐乾保
Original assignee: SOCO MACHINERY (ZHANGJIAGANG) CO Ltd
Current assignee: SOCO MACHINERY (ZHANGJIAGANG) CO Ltd
Priority date: 2012-10-15
Filing date: 2012-10-15
Publication date: 2013-01-23
Anticipated expiration: 2032-10-15
Also published as: CN102886441B

Abstract

The invention discloses a die bending device in a full-automatic numerical control hydraulic pipe bender. The die bending device comprises a wheel die, wherein the wheel die is internally provided with an inner cavity with a piston, the inner cavity is divided by the piston into a left inner chamber and a right inner chamber which are not communicated with each other, the piston is in threaded connection with a piston rod, a cylinder cover is fixed on the wheel die, a cylinder cover seal cover presses the inner cavity, the piston rod movably penetrates through the cylinder cover to be fixedly connected with an upper split block, the piston rod is in sealing contact with the cylinder cover, a left inner chamber is communicated with a first through hole in the wheel die, a right inner chamber is communicated with a second through hole in the cylinder cover, a forked tail block matched with the upper split block is fixed on the wheel die, the upper split block can slide along the forked tail block under the pushing of the piston rod, a lower split block is further fixedly arranged on the wheel die, and the lower split block is arranged under the upper split block, and can work together with the upper split block to clamp a pipe fitting. When the die bending device is used for bending a pipe, the pipe fitting can move in a demoulding and tilting way, so that a coil pipe can be bended.

Description

Bending die device in the full-automatic numerical-control hydraulic bending machine

Technical field

The present invention relates to the full-automatic numerical-control hydraulic bending machine, refer more particularly to the bending die device in the full-automatic numerical-control hydraulic bending machine.

Background technology

The full-automatic numerical-control hydraulic bending machine is one of optimal process equipment of small pipe fitting in the bending, and the spare and accessory parts that are mainly used in the fields such as automobile industry, fitness campaign equipment, furniture industry, medical equipment, engineering mechanical device are made.

The structure of the bending die device in the full-automatic numerical-control hydraulic bending machine commonly used is at present: comprising: the wheel mould, be installed with piece at the wheel mould, and during work, the described mould of taking turns is fixedly installed on the bending pipe arm.

The operation principle of the bending die device of said structure is as follows: during work, the clamping of wheel mould in bending machine clamps pipe fitting, and drive unit drives the bending pipe arm rotation, and the wheel mould rotates along with the rotation of bending pipe arm, thereby reaches the purpose of bend pipe.

The shortcoming that the bending die device of said structure exists is: only have during the bending die device busy around the rotatablely moving of main shaft, then not movable in the radial direction, so that when crooked long waist shaped coil pipe, pipe fitting can't the demoulding, vert.Therefore, the bending die device of this structure can't crooked coil pipe.

Summary of the invention

The purpose of this invention is to provide a kind of when bend pipe is worked, thereby pipe fitting can the demoulding, doing to vert motion can be in order to the bending die device in the full-automatic numerical-control hydraulic bending machine of crooked coil pipe.

For achieving the above object, the present invention has adopted following technical scheme.

Bending die device in the full-automatic numerical-control hydraulic bending machine, comprise: the wheel mould, be characterized in: in the wheel mould, be provided with inner chamber, be provided with piston in the inner chamber, piston is separated into two not connected left inside chambeies and right inside chamber with inner chamber, piston is connected with piston rod thread, cylinder cap is fixed on the wheel mould, the cylinder cap seal cover is pressed on the inner chamber, the piston rod activity is fixedly connected with upper piece after passing cylinder cap, between piston rod and the cylinder cap mutually sealing contact, left inside chamber communicates with the first through hole on taking turns mould, right inside chamber communicates with the second through hole on the cylinder cap, be fixed with the dovetails that matches with upper piece at the wheel mould, piece can slide along dovetails under the promotion of piston rod, also is installed with lower piece on the wheel mould, and lower piece is positioned at the below of piece, and with can the clamping pipe fitting after upper piece cooperates.

Further, the bending die device in the aforesaid full-automatic numerical-control hydraulic bending machine, wherein: the lower end at the wheel mould is provided with in order to mutually to locate fixing short mandrel with bending pipe arm.

Further, the bending die device in the aforesaid full-automatic numerical-control hydraulic bending machine, wherein: between dovetails and upper piece, be provided with the gag in order to the adjusting play.

Beneficial effect of the present invention: bend pipe when work, drive upper piece by built-in oil cylinder and move back and forth, can clamp pipe fitting like this, can make again pipe fitting carry out the demoulding, and do to vert motion, thereby can be suitable for crooked coil pipe.

Description of drawings

Fig. 1 is the structural representation of the bending die device in the full-automatic numerical-control hydraulic bending machine of the present invention.

Fig. 2 is the decomposition assembly structure schematic diagram of Fig. 1.

Fig. 3 is the main TV structure schematic diagram of Fig. 1.

Fig. 4 is the plan structure schematic diagram of Fig. 3.

Fig. 5 is the sectional structure schematic diagram of the A-A direction among Fig. 4.

The specific embodiment

Below in conjunction with accompanying drawing and preferred embodiment the bending die device in the full-automatic numerical-control hydraulic bending machine of the present invention is further described.

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, bending die device in the full-automatic numerical-control hydraulic bending machine of the present invention, comprise: wheel mould 1, lower end at wheel mould 1 is provided with in order to mutually to locate fixing short mandrel 17 with bending pipe arm, during work, wheel mould 1 passes through short mandrel 17 location and installation on bending pipe arm; In wheel mould 1, be provided with inner chamber 16, be provided with piston 2 in the inner chamber 16, overlapping respectively at the two ends of piston 2 has sealing ring 21, sealing ring 22, piston 2 is separated into two not connected left inside chambeies 161 and right inside chamber 162 with inner chamber 16, piston 2 is threaded with piston rod 4, cylinder cap 3 is fixed on the wheel mould 1, cylinder cap 3 is pressed on the inner chamber 16 by sealing ring 32 seal covers, piston rod 4 activities are fixedly connected with upper piece 5 after passing cylinder cap 3, between piston rod 4 and the cylinder cap 3 mutually sealing contact, left inside chamber 161 communicates with first through hole 11 of wheel on the mould 1, right inside chamber 162 communicates with the second through hole 31 on the cylinder cap 3, be fixed with the dovetails 7 that matches with upper piece 5 at wheel mould 1, piece 5 can slide along dovetails 7 under the promotion of piston rod 4, be provided with the gag 8 in order to the adjusting play between dovetails 7 and upper piece 5, also be installed with lower piece 6 on wheel mould 1, lower piece 6 is positioned at the below of piece 5, and with can the clamping pipe fitting after upper piece 5 cooperates.

The operation principle of the bending die device in the full-automatic numerical-control hydraulic bending machine of the present invention is as follows: during work, pipe fitting is put in the clamping of taking turns in mould 1 and the bending machine, at this moment, from 11 oil-feeds of the first through hole to left inside chamber 161, oil in the right inside chamber 162 flows out by the second through hole 31, and pushing piston 2 advances, and upper piece 5 is pushed ahead under the promotion of piston rod 4, so that upward piece 5, lower piece 6 can cooperate the main folder mould to clamp simultaneously pipe fitting with wheel mould 1, then carry out first curved bending.After first winding getting well, from 31 oil-feeds of the second through hole to right inside chamber 162, oil in the left inside chamber 161 then flows out by the first through hole 11, pushing piston 2 retreats, upper piece 5 is drawn back under the pulling of piston rod 4, make piece 5 leave pipe fitting one segment distance, like this pipe fitting can the demoulding, and do to vert to have moved.Then the dolly feeding in the bending machine is verted pipe fitting, and next bending position is moved to the bend pipe station, and then clamps crooked.So constantly carry out, until curved all curved the getting well on the pipe fitting.

Above-mentioned bending die device, bend pipe when work, move back and forth by piece 5 on the built-in hydraulic oil cylinder driving, can clamp pipe fitting like this, can make again pipe fitting carry out the demoulding, and do to vert motion, thereby can be suitable for crooked coil pipe.

Claims

1. the bending die device in the full-automatic numerical-control hydraulic bending machine, comprise: the wheel mould, it is characterized in that: in the wheel mould, be provided with inner chamber, be provided with piston in the inner chamber, piston is separated into two not connected left inside chambeies and right inside chamber with inner chamber, piston is connected with piston rod thread, cylinder cap is fixed on the wheel mould, the cylinder cap seal cover is pressed on the inner chamber, the piston rod activity is fixedly connected with upper piece after passing cylinder cap, between piston rod and the cylinder cap mutually sealing contact, left inside chamber communicates with the first through hole on taking turns mould, right inside chamber communicates with the second through hole on the cylinder cap, be fixed with the dovetails that matches with upper piece at the wheel mould, piece can slide along dovetails under the promotion of piston rod, also is installed with lower piece on the wheel mould, and lower piece is positioned at the below of piece, and with can the clamping pipe fitting after upper piece cooperates.

2. the bending die device in the full-automatic numerical-control hydraulic bending machine according to claim 1 is characterized in that: be provided with in order to mutually to locate fixing short mandrel with bending pipe arm in the lower end of taking turns mould.

3. the bending die device in the full-automatic numerical-control hydraulic bending machine according to claim 1 and 2 is characterized in that: be provided with the gag in order to the adjusting play between dovetails and upper piece.