CN210676472U - Dual-drive pipe bending mechanism in pipe bending machine - Google Patents
Dual-drive pipe bending mechanism in pipe bending machine Download PDFInfo
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- CN210676472U CN210676472U CN201920849040.1U CN201920849040U CN210676472U CN 210676472 U CN210676472 U CN 210676472U CN 201920849040 U CN201920849040 U CN 201920849040U CN 210676472 U CN210676472 U CN 210676472U
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Abstract
The utility model discloses a dual drive swan neck system in bending machine, include: the bending machine comprises a frame, a main shaft is arranged on the frame, a die clamping seat is arranged on the outer side of the frame and connected with the main shaft, a die clamping is arranged on the die clamping seat, a wheel die is arranged on the main shaft, a traction wheel is fixedly arranged on the main shaft, a first driving mechanism and a second driving mechanism are arranged on the frame and connected with the traction wheel, and the first driving mechanism can pull the traction wheel to rotate towards a right-side bent pipe direction; the second driving mechanism can pull the traction wheel to rotate towards the left reset direction; the utility model has the advantages that: first actuating mechanism and second actuating mechanism need not cooperate with the sprocket at the in-process of traction wheel, just so be difficult to appear the cracked condition of chain, more can not appear the condition that chain and sprocket disjointed, have not only improved factor of safety greatly, but also improved return bend mechanism's life and return bend precision greatly.
Description
Technical Field
The utility model relates to a bending machine especially relates to the return bend mechanism in bending machine.
Background
Pipe bending mechanism in pipe bender includes: a frame, a main shaft which can rotate in the frame is arranged on the frame, the upper end and the lower end of the main shaft respectively extend out of the frame, a die holder is arranged on the outer side of the frame, a connecting arm is arranged at the upper end of the die holder and sleeved on a main shaft extending upwards out of the frame, a connecting plate is arranged between the lower end of the die holder and a main shaft which extends downwards out of the frame, a die holder is arranged on the die holder, a wheel mold matched with the clamping mold is arranged on the main shaft, the main shaft can drive the clamping mold seat and the wheel mold to rotate together, the main shaft is provided with a first chain wheel, the rack is provided with a speed reducer, the speed reducer is provided with a second chain wheel, the first chain wheel is connected with the second chain wheel through a chain, the speed reducer drives the second chain wheel to rotate, and the first chain wheel and the main shaft can be driven to rotate together through the chain, so that the wheel mold connected with the main shaft and the mold clamping seat rotate together. In the pipe bending process, after the wheel mold and the clamping mold on the clamping mold seat clamp the pipe fitting, the speed reducer is started to enable the second chain wheel and the first chain wheel to rotate towards the pipe bending direction, and the main shaft drives the wheel mold and the clamping mold to rotate towards the pipe bending direction, so that the pipe fitting between the wheel mold and the clamping mold is bent and formed. After the pipe fitting is bent and formed, the pipe fitting is not clamped by the clamping die and the wheel die any more, and after the bent and formed pipe fitting is taken away by a worker, the speed reducer is started to enable the second chain wheel and the first chain wheel to rotate in the reciprocating position direction, so that the clamping die holder and the wheel die rotate to the initial position. The pipe bending mechanism has the following disadvantages: at the return bend in-process, there is great frictional force between chain and first, the second sprocket, and the sprocket weares and teares the chain easily, and this pitch grow that just makes the chain easily to appear taking off the festival and influencing the condition of return bend precision with the sprocket easily, the cracked condition of chain can appear even, like this not only the production accident appears easily, but also greatly reduced the life of return bend mechanism.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a factor of safety is high, and can improve the dual drive return bend mechanism in life's bending machine.
In order to achieve the above object, the utility model adopts the following technical scheme: dual drive return bend mechanism in bending machine includes: the device comprises a frame, a main shaft which can rotate in the frame is arranged on the frame, the upper end and the lower end of the main shaft respectively extend out of the upper end and the lower end of the frame, a die clamping seat is arranged on the outer side of the frame, a connecting arm is arranged at the upper end of the die clamping seat and sleeved on the main shaft which extends out of the frame, a connecting plate is arranged between the lower end of the die clamping seat and the main shaft which extends out of the frame, a die clamping is arranged on the die clamping seat, a wheel die which can be matched with the die clamping is arranged on the main shaft, the main shaft can drive the die clamping seat and the wheel die to rotate together, a traction wheel is fixedly arranged on the main shaft, a first driving mechanism and a second driving mechanism are arranged on the frame, the first driving mechanism is connected with the right side wall of the traction wheel, the second driving mechanism is connected with the left side wall of the traction wheel, when the first driving mechanism pulls the traction wheel to rotate towards the right side, the second driving, the first driving mechanism can drive the traction wheel to drive the main shaft, the wheel mold connected with the main shaft and the mold clamping seat to rotate towards the pipe bending direction on the right side; when the second driving mechanism pulls the traction wheel to rotate towards the left side, the first driving mechanism can not generate reverse traction force opposite to the traction force direction of the second driving mechanism on the traction wheel, so that the second driving mechanism can drive the traction wheel to drive the main shaft and the wheel mold connected with the main shaft and the mold clamping seat to rotate towards the left side resetting direction.
Further, dual drive pipe bending mechanism in aforementioned pipe bending machine, wherein, first actuating mechanism is first hydraulic cylinder, and second actuating mechanism is the second hydraulic cylinder, and the connection structure between first hydraulic cylinder, second hydraulic cylinder and the traction wheel is: the hydraulic cylinder traction mechanism is characterized in that a first chain connecting block is fixedly arranged on the right side wall of the traction wheel, a second chain connecting block is fixedly arranged on the left side wall of the traction wheel, a first traction chain is fixedly connected to a piston rod of the first hydraulic cylinder, the first traction chain is fixedly connected with a connecting end on the first chain connecting block, a second traction chain is fixedly connected to a piston rod of the second hydraulic cylinder, and the second traction chain is fixedly connected with a connecting end on the second chain connecting block.
Further, in the dual-drive pipe bending mechanism in the pipe bending machine, the first traction chain is five rows of chains, and the second traction chain is three rows of chains.
Further, dual drive return bend mechanism in aforementioned bending machine, wherein, connection structure between first chain connecting block and second chain connecting block and the traction wheel is: the left side wall and the right side wall of the traction wheel are respectively provided with a fixing groove, the bottoms of the two fixing grooves are respectively provided with a plurality of threaded holes, a first chain connecting block and a second chain connecting block are respectively provided with a plurality of countersunk through holes, the first chain connecting block is embedded in the fixing groove on the right side wall of the traction wheel, the countersunk through holes on the first chain connecting block are respectively aligned with the threaded holes in the fixing grooves one by one, inner hexagonal bolts penetrate through the countersunk through holes and then are in threaded connection with the corresponding threaded holes, so that the first chain connecting block is fixed on the right side wall of the traction wheel, and the connecting end of the first chain connecting block, which is connected with the first traction chain, protrudes outwards out of the; the second chain connecting block is embedded in a fixing groove in the left side wall of the traction wheel, countersunk head through holes in the second chain connecting block are respectively aligned with threaded holes in the fixing groove one by one, and inner hexagonal bolts penetrate through the countersunk head through holes and then are in threaded connection with corresponding threaded holes, so that the second chain connecting block is fixed on the left side wall of the traction wheel, and connecting ends connected with the second traction chain on the second chain connecting block are outwards protruded out of the traction wheel.
Further, in the dual-drive pipe bending mechanism in the pipe bending machine, the connecting structure between the traction wheel and the main shaft is as follows: the traction wheel is provided with a connecting hole, a plurality of first axial key grooves which penetrate through the upper end and the lower end of the traction wheel along the axial direction are formed in the inner side wall of the connecting hole, a plurality of second axial key grooves are formed in the outer side wall of the main shaft, a connecting key is placed in each second axial key groove, the traction wheel is sleeved on the main shaft, and the first axial key grooves in the traction wheel are embedded with the corresponding connecting keys.
The utility model has the advantages that: first traction chain and second traction chain do not need to cooperate with the sprocket at the in-process of traction wheel, and first traction chain and second traction chain just can not be worn and torn by the sprocket, and this just makes first, second traction chain be difficult to the cracked condition that appears, more can not appear with the condition of sprocket disjointing, have not only improved factor of safety greatly, but also improved the life of return bend mechanism greatly, also can ensure the return bend precision.
Drawings
Fig. 1 is a schematic top view of a dual-drive pipe bending mechanism of the pipe bending machine according to the present invention.
Fig. 2 is a schematic sectional view in the direction of a-a in fig. 1.
Fig. 3 is a schematic sectional view in the direction B-B in fig. 1.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1, fig. 2, and fig. 3, the dual-drive pipe bending mechanism of the pipe bending machine of the present invention includes: a frame 1, a main shaft 2 capable of rotating in the frame 1 is arranged on the frame 1, the upper and lower ends of the main shaft 2 respectively extend out of the upper and lower ends of the frame 1, a clamping die holder 3 is arranged on the outer side of the frame 1, a connecting arm 31 is arranged at the upper end of the clamping die holder 3, the connecting arm 31 is sleeved on the main shaft 2 extending out of the frame 1, a connecting plate 32 is arranged between the lower end of the clamping die holder 3 and the main shaft 2 extending out of the frame 1 downwards, a clamping die 33 is arranged on the clamping die holder 3, a wheel die 11 capable of matching with the clamping die 33 is arranged on the main shaft 2, the main shaft 2 can drive the clamping die holder 3 and the wheel die 11 to rotate together, a traction wheel 21 is fixedly arranged on the main shaft 2, a first driving mechanism and a second driving mechanism are arranged on the frame, the first driving mechanism and the second driving mechanism are respectively connected with the left and right side walls of the traction wheel 21, the first driving mechanism, the second driving mechanism is a second hydraulic oil cylinder 13, and the connecting structures among the first hydraulic oil cylinder 12, the second hydraulic oil cylinder 13 and the traction wheel 21 are as follows: a first chain connecting block 22 is fixedly arranged on the right side wall of the traction wheel 21, a second chain connecting block 23 is fixedly arranged on the left side wall of the traction wheel, a first traction chain 4 is fixedly connected to a piston rod of the first hydraulic oil cylinder 12, the first traction chain 4 is fixedly connected with a connecting end on the first chain connecting block 22, a second traction chain 41 is fixedly connected to a piston rod of the second hydraulic oil cylinder 13, the second traction chain 41 is fixedly connected with a connecting end on the second chain connecting block 23, when the first hydraulic oil cylinder 12 pulls the traction wheel 21 to rotate towards the right side, the second hydraulic oil cylinder 13 can not generate reverse traction force opposite to the traction force direction of the first hydraulic oil cylinder 12 on the traction wheel 21, so that the first hydraulic oil cylinder 12 can drive the traction wheel 21 to drive the main shaft 2 and the wheel mold 11 and the clamp mold base 3 connected with the main shaft 2 to rotate towards the right side pipe bending direction, at this time, the wheel mold 11 and the clamping mold 33 can bend the clamped pipe, in the pipe bending process, the first traction chain 4 needs to bear a large tensile force, and in order to enable the first traction chain 4 to bear the large tensile force, in this embodiment, the first traction chain 4 adopts five rows of chains; when the second hydraulic cylinder 13 pulls the traction wheel 21 to rotate towards the left side, the first hydraulic cylinder 12 cannot generate reverse traction force opposite to the direction of the traction force of the second hydraulic cylinder 13 on the traction wheel 21, so that the second hydraulic cylinder 13 can drive the traction wheel 21 to drive the spindle 2 and the wheel mold 11 connected with the spindle 2 and the clamping mold base 3 to rotate towards the left side resetting direction, at the moment, the pipe between the wheel mold 11 and the clamping mold 33 is taken away after bending forming, therefore, the tension force borne by the second traction chain 41 is small, and in order to save production cost, in the embodiment, the second traction chain 41 adopts three rows of chains.
In this embodiment, the connection structure between the first chain connection block 22 and the second chain connection block 23 and the traction wheel 21 is: a fixing groove is respectively formed in the left side wall and the right side wall of the traction wheel 21, a plurality of threaded holes are respectively formed in the bottoms of the two fixing grooves, a plurality of countersunk through holes are respectively formed in the first chain connecting block 22 and the second chain connecting block 23, the first chain connecting block 22 is embedded in the fixing groove in the right side wall of the traction wheel 21, the countersunk through holes in the first chain connecting block 22 are respectively aligned with the threaded holes in the fixing groove one by one, the hexagon socket head cap screw 5 penetrates through the countersunk through holes and then is in threaded connection with the corresponding threaded holes, so that the first chain connecting block 22 is fixed on the right side wall of the traction wheel 21, and the connecting end, connected with the first traction chain 4, of the first chain connecting block 22 protrudes out of the traction wheel 21; the second chain connecting blocks 23 are embedded in fixing grooves in the left side wall of the traction wheel 21, countersunk through holes in the second chain connecting blocks 23 are respectively aligned with threaded holes in the fixing grooves one by one, and the hexagon socket head bolts 5 penetrate through the countersunk through holes and then are in threaded connection with the corresponding threaded holes, so that the second chain connecting blocks 23 are fixed on the left side wall of the traction wheel 21, and connecting ends, connected with the second traction chains 41, on the second chain connecting blocks 22 protrude out of the traction wheel 21.
In this embodiment, the connection structure between the traction wheel 21 and the main shaft 2 is as follows: the traction wheel 21 is provided with a connecting hole, the inner side wall of the connecting hole is provided with two first axial key grooves 211 which axially penetrate through the upper end and the lower end of the traction wheel 21, the outer side wall of the main shaft 2 positioned in the rack 1 is provided with two second axial key grooves 12, one connecting key 6 is placed in each second axial key groove 12, the traction wheel 21 is sleeved on the main shaft 2, and the two first axial key grooves 211 on the traction wheel 21 are embedded with the corresponding connecting keys 6.
The utility model has the advantages that: first traction chain and second traction chain do not need to cooperate with the sprocket at the in-process of traction wheel, and first traction chain and second traction chain just can not be worn and torn by the sprocket, and this just makes first, second traction chain be difficult to the cracked condition that appears, more can not appear with the condition of sprocket disjointing, have not only improved factor of safety greatly, but also improved the life of return bend mechanism greatly, also can ensure the return bend precision.
Claims (5)
1. Dual drive return bend mechanism in bending machine includes: the automatic forming machine comprises a machine frame, a main shaft which can rotate in the machine frame is arranged on the machine frame, the upper end and the lower end of the main shaft respectively extend out of the upper end and the lower end of the machine frame, a die clamping seat is arranged on the outer side of the machine frame, a connecting arm is arranged at the upper end of the die clamping seat and sleeved on the main shaft which extends out of the machine frame, a connecting plate is arranged between the lower end of the die clamping seat and the main shaft which extends out of the machine frame, a die clamping is arranged on the die clamping seat, a wheel die which can be matched with the die clamping is arranged on the main shaft, and the main shaft can drive the die clamping seat and the wheel die to rotate together, and is characterized in that a traction wheel is fixedly arranged on the main shaft, a first driving mechanism and a second driving mechanism are arranged on the machine frame, the first driving mechanism is connected with the right side wall of the traction wheel, the second, the second driving mechanism can not generate reverse traction force opposite to the traction force of the first driving mechanism on the traction wheel, so that the first driving mechanism can drive the traction wheel to drive the main shaft, the wheel mold connected with the main shaft and the mold clamping seat to rotate towards the pipe bending direction at the right side; when the second driving mechanism pulls the traction wheel to rotate towards the left side, the first driving mechanism can not generate reverse traction force opposite to the traction force direction of the second driving mechanism on the traction wheel, so that the second driving mechanism can drive the traction wheel to drive the main shaft and the wheel mold connected with the main shaft and the mold clamping seat to rotate towards the left side resetting direction.
2. The dual-drive pipe bending mechanism in the pipe bending machine according to claim 1, is characterized in that: first actuating mechanism is first hydraulic cylinder, and second actuating mechanism is the second hydraulic cylinder, and the connection structure between first hydraulic cylinder, second hydraulic cylinder and the traction wheel is: the hydraulic cylinder traction mechanism is characterized in that a first chain connecting block is fixedly arranged on the right side wall of the traction wheel, a second chain connecting block is fixedly arranged on the left side wall of the traction wheel, a first traction chain is fixedly connected to a piston rod of the first hydraulic cylinder, the first traction chain is fixedly connected with a connecting end on the first chain connecting block, a second traction chain is fixedly connected to a piston rod of the second hydraulic cylinder, and the second traction chain is fixedly connected with a connecting end on the second chain connecting block.
3. The dual-drive pipe bending mechanism in the pipe bending machine according to claim 2, is characterized in that: the first traction chain is a five-row chain, and the second traction chain is a three-row chain.
4. The dual-drive pipe bending mechanism in the pipe bending machine according to claim 2 or 3, characterized in that: the connecting structure between the first chain connecting block and the second chain connecting block and the traction wheel is as follows: the left side wall and the right side wall of the traction wheel are respectively provided with a fixing groove, the bottoms of the two fixing grooves are respectively provided with a plurality of threaded holes, a first chain connecting block and a second chain connecting block are respectively provided with a plurality of countersunk through holes, the first chain connecting block is embedded in the fixing groove on the right side wall of the traction wheel, the countersunk through holes on the first chain connecting block are respectively aligned with the threaded holes in the fixing grooves one by one, inner hexagonal bolts penetrate through the countersunk through holes and then are in threaded connection with the corresponding threaded holes, so that the first chain connecting block is fixed on the right side wall of the traction wheel, and the connecting end of the first chain connecting block, which is connected with the first traction chain, protrudes outwards out of the; the second chain connecting block is embedded in a fixing groove in the left side wall of the traction wheel, countersunk head through holes in the second chain connecting block are respectively aligned with threaded holes in the fixing groove one by one, and inner hexagonal bolts penetrate through the countersunk head through holes and then are in threaded connection with corresponding threaded holes, so that the second chain connecting block is fixed on the left side wall of the traction wheel, and connecting ends connected with the second traction chain on the second chain connecting block are outwards protruded out of the traction wheel.
5. The dual drive tube bending mechanism in the tube bender according to claim 1, 2 or 3, characterized in that: the connecting structure between the traction wheel and the main shaft is as follows: the traction wheel is provided with a connecting hole, a plurality of first axial key grooves which penetrate through the upper end and the lower end of the traction wheel along the axial direction are formed in the inner side wall of the connecting hole, a plurality of second axial key grooves are formed in the outer side wall of the main shaft, a connecting key is placed in each second axial key groove, the traction wheel is sleeved on the main shaft, and the first axial key grooves in the traction wheel are embedded with the corresponding connecting keys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920849040.1U CN210676472U (en) | 2019-06-06 | 2019-06-06 | Dual-drive pipe bending mechanism in pipe bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920849040.1U CN210676472U (en) | 2019-06-06 | 2019-06-06 | Dual-drive pipe bending mechanism in pipe bending machine |
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| Publication Number | Publication Date |
|---|---|
| CN210676472U true CN210676472U (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920849040.1U Active CN210676472U (en) | 2019-06-06 | 2019-06-06 | Dual-drive pipe bending mechanism in pipe bending machine |
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| CN (1) | CN210676472U (en) |
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- 2019-06-06 CN CN201920849040.1U patent/CN210676472U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 99, Xingyuan Road, Nanfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province, 215628 Patentee after: Jiangsu Taihe Machinery Manufacturing Co.,Ltd. Address before: 215628 Zhangjiagang Taihe Machinery Manufacturing Co., Ltd., Nanfeng Town, Minlian Village, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee before: ZHANGJIAGANG CITY TELHOO MACHINERY MANUFACTURING Co.,Ltd. |
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| CP03 | Change of name, title or address |