CN115301778A

CN115301778A - Sheet bending machine

Info

Publication number: CN115301778A
Application number: CN202211240446.2A
Authority: CN
Inventors: 张天顺
Original assignee: Yangzhou Yuxin Intelligent Technology Co ltd
Current assignee: Yangzhou Yuxin Intelligent Technology Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2022-11-08
Anticipated expiration: 2042-10-11
Also published as: CN115301778B

Abstract

The application relates to a sheet bending machine, and relates to the technical field of bending machines. The die comprises a rack, an upper die holder and a lower die holder, wherein the upper die holder and the lower die holder are arranged on the rack, an upper die is connected to the bottom of the upper die holder in a sliding manner, a lower die is connected to the top of the lower die holder in a sliding manner, a bearing plate is arranged on the rack, a backing plate is connected to the bearing plate, a rotating shaft is fixedly arranged on one side, far away from the bearing plate, of the backing plate, and a bearing assembly is arranged between the rotating shaft and the rack. This application has the work piece that can bear the weight of different width and improved the effect of suitability.

Description

Sheet bending machine

Technical Field

The application relates to the field of bending machines, in particular to a plate bending machine.

Background

The bending machine is important equipment for bending and forming workpieces in the sheet metal industry and is used for pressing steel plates into parts in various shapes according to process requirements; today, as some sheet work pieces are larger, stacks are provided on bending machines for carrying the work pieces.

At present, referring to fig. 1, a sheet bending machine in the related art includes a frame 1, and an upper die holder 11 and a lower die holder 12 that are disposed on the frame 1, an upper die 111 is slidably connected to the upper die holder 11, a lower die 121 is slidably connected to the lower die holder 12, and a pair of bearing plates 14 is fixedly disposed on the frame 1. When the workpiece lifting device is used, a workpiece can be placed on the bearing plate 14 firstly, so that workers do not need to lift the workpiece completely, and the physical strength of the workers is saved; then, the workpiece is pushed between the upper die 111 and the lower die 121, and finally, the upper die 111 is moved toward the lower die 121 to bend the workpiece.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: because the length of the bearing plate is fixed, when a workpiece with a larger width is borne, the width of the workpiece is larger than that of the bearing plate, so that the bearing stability of the bearing plate on the workpiece is poor, the workpiece is easy to fall to the ground from the bearing plate, and the applicability is low; if the length of the bearing plate is increased, the bearing plate occupies too much space when the workpiece is not required to be bent, so that the bearing plate is easy to be mistakenly collided when a worker walks around the rack, and the improvement is needed.

Disclosure of Invention

In order to improve the defects in the related art, the application provides a plate bending machine.

The application provides a sheet bending machine adopts following technical scheme:

the utility model provides a sheet bending machine, includes the frame and locates upper die base and die holder in the frame, and the bottom sliding connection of upper die base has the mould, and the top sliding connection of die holder has the bed die, is provided with the loading board in the frame, be connected with the backing plate on the loading board, the backing plate is kept away from the fixed axis of rotation that is provided with in one side of loading board, the axis of rotation with be provided with the carrier assembly between the frame.

By adopting the technical scheme, when the rotating shaft is used, the rotating shaft is released through the bearing assembly so that the rotating shaft can rotate; then, rotating the rotating shaft according to the width of the workpiece, indirectly adjusting the angle between the bearing plate and the rack, wherein the larger the width of the workpiece is, the larger the angle is; the smaller the width of the workpiece, the smaller the angle; until the angle meeting the width of the workpiece is adjusted, tightening the rotating shaft through the bearing assembly again, and finally bending the workpiece; except the special condition that the width of the workpiece is actually overlarge, the connection mode of the bearing plate and the rack can stably bear the workpieces with different widths, so that the applicability is higher;

when need not to bend the work piece, can loosen the axis of rotation through carrier assembly earlier and put, then rotate the axis of rotation, parallel with the frame until the loading board, tighten up the axis of rotation through carrier assembly once more at last to reduce the space that occupies when the loading board need not to use, and then make the staff be difficult for the mistake to hit the loading board when walking about the frame, thereby improved the security.

Optionally, the bearing assembly includes a bearing portion and a tightening portion, the bearing portion includes a fixture and a lap joint hoop, the rotating shaft penetrates through the fixture and the fixture is connected with the frame, the tightening portion is arranged on the fixture, and the lap joint hoop is fixedly sleeved on the rotating shaft and lapped on the fixture.

By adopting the technical scheme, when the clamping device is used, the clamping device is released through the tightening part so as to release the rotating shaft; then rotating the rotating shaft by a proper angle according to the width of the workpiece; after the rotation is finished, the fixture is tightened again through the tightening part to tighten the rotating shaft, so that the rotating shaft is not easy to rotate, and a workpiece is conveniently born.

Optionally, the fixture comprises a straight plate and a ring plate, the straight plate is connected with the rack, one end of the ring plate is fixed with the straight plate, and the other end of the ring plate is connected with the straight plate through the tightening part.

By adopting the technical scheme, when in use, the annular plate and the straight plate are loosened through the tightening part so as to loosen the rotating shaft; then rotating the rotating shaft by a proper angle according to the width of the workpiece; after the rotation is finished, the ring plate and the straight plate are tightened through the tightening part again to tighten the rotating shaft, so that the rotating shaft is not easy to rotate, and a workpiece is conveniently borne.

Optionally, the tightening part comprises a handle and a tightening bolt, the end, far away from the ring plate, of the ring plate fixed to the straight plate is connected to the straight plate through the tightening bolt, and the handle is fixedly sleeved on the tightening bolt.

By adopting the technical scheme, when the tool is used, a worker holds the handle and then rotates the handle to unscrew the tightening bolt, so that the rotating shaft is loosened; then rotating the rotating shaft by a proper angle according to the width of the workpiece; after the rotation is finished, the tightening bolt is tightened by holding the handle and rotating in the opposite direction, so that the annular plate and the straight plate are tightened to tighten the rotating shaft, and the rotating shaft is not easy to rotate so as to bear a workpiece.

Optionally, the bearing assembly includes a supporting portion, a driving portion, a limiting portion, a moving portion and a locking portion, the supporting portion is fixed to the frame, the driving portion is disposed between the supporting portion and the rotating shaft, the limiting portion is disposed between the driving portion and the rotating shaft, the moving portion is disposed on the supporting portion, and the locking portion is disposed between the supporting portion and the moving portion.

By adopting the technical scheme, when the workpiece support device is used, the distance between the two bearing plates is adjusted through the moving part according to the length of the workpiece; after the adjustment is finished, the moving part is locked through the locking part, then the driving part is driven to rotate forwards, and at the moment, due to the limiting effect of the limiting part, the rotating shaft rotates, so that the rotating shaft rotates at a proper angle according to the width of a workpiece; after the rotation is finished, a plurality of workpieces can be placed on the bearing plate, and then the workpieces from top to bottom can be sequentially bent; when the bending of a single workpiece is finished, the driving part is driven to rotate reversely, and at the moment, due to the limiting effect of the limiting part, the rotating shaft moves upwards along the vertical direction, so that the workpiece to be bent is jacked to the position of the uppermost workpiece when all workpieces are not bent, and a worker can bend the workpiece more conveniently; according to the mode, a plurality of workpieces can be placed on the bearing plate to be bent, and after a single workpiece is bent, a workpiece is required to be taken at a workpiece taking position and then bent, so that the physical strength of workers is saved, and the workpiece bending efficiency is improved.

Optionally, the supporting portion includes a supporting plate and a supporting block, the supporting plate is fixedly connected to the frame, the supporting block is connected to the supporting plate, the driving portion is disposed between the supporting block and the rotating shaft, the moving portion is disposed between the supporting plate and the supporting block, and the locking portion is disposed between the moving portion and the supporting plate.

Through adopting above-mentioned technical scheme, during the use, slide two supporting shoes in the backup pad according to the length of work piece and through removal portion to adjust the interval between two loading boards, thereby so that the loading board can bear the weight of the work piece.

Optionally, the moving portion includes a slider, a ball and a blocking piece, a sliding groove is formed in the supporting plate, the slider is fixed to the supporting block, the slider is inserted into the sliding groove and slides in the sliding groove, a containing hole is formed in the slider, the ball is inserted into the containing hole and abuts against the bottom of the sliding groove, a containing groove is formed in the bottom of the sliding groove, the blocking piece is fixed in the containing groove and abuts against the blocking piece, and the locking portion is arranged between the slider and the supporting plate.

By adopting the technical scheme, the ball is abutted against the bottom of the sliding groove, and the ball has the function of reducing the friction force applied to the sliding block when the sliding block slides in the sliding groove, so that the sliding block can be easily pushed to slide; the effect that blocks the piece lies in that the slider mediation finishes the back, and the piece that blocks with the slider butt will provide certain frictional force for the slider to make the slider adjust the back that finishes and be difficult for taking place the slip automatically because of external factors's influence.

Optionally, the locking portion includes extension rod and locking bolt, the locking groove has been seted up to the inner wall of spout, extension rod one end with the slider is connected, the other end is inserted and is established and slide in the locking inslot, seted up logical groove in the backup pad just logical groove with the locking groove communicates mutually, the locking hole has been seted up on the extension rod, the screw rod portion of locking bolt is worn to locate logical groove and threaded connection in the locking hole, the nut portion of locking bolt support tightly in the backup pad.

By adopting the technical scheme, when in use, the locking bolt is screwed out of the locking hole and taken out of the through groove, and then the distance between the two sliding blocks is adjusted; after the adjustment is finished, the screw part of the locking bolt is in threaded connection with the locking hole, and the nut part of the locking bolt is tightly abutted to the top wall of the supporting plate at the moment, so that the locking of the sliding block is completed, and when the bearing plate bears the workpiece, the sliding block is not easy to slide, and the stability of the bearing plate in bearing the workpiece is improved.

Optionally, the driving portion includes a micro motor, a screw rod, a sleeve, a first foot switch and a second foot switch, a holding cavity is provided in the supporting block, the micro motor is fixed in the holding cavity, the first foot switch and the second foot switch are both fixed in the supporting plate and in signal connection with the micro motor, the sleeve is rotatably connected with the supporting block and penetrates through the holding cavity, the rotating shaft penetrates through the sleeve, the limiting portion is connected between the sleeve and the rotating shaft, a threaded hole is provided in the rotating shaft, one end of the screw rod is coaxially fixed to the output end of the micro motor, and the other end of the screw rod is in threaded connection with the threaded hole.

By adopting the technical scheme, when the micro-motor is used, a worker steps on the first foot switch to control the micro-motor to rotate forwards, at the moment, due to the limiting effect of the limiting part, the screw rod, the rotating shaft and the sleeve rotate simultaneously, and therefore the rotating shaft rotates at a proper angle according to the width of a workpiece; after the rotation is finished, a plurality of workpieces can be placed on the bearing plate, and then the workpieces from top to bottom can be bent in sequence; when a single workpiece is bent, a worker steps on the second foot switch to control the micro motor to rotate reversely, at the moment, due to the limiting effect of the limiting part, the sleeve and the rotating shaft do not rotate any more and the rotating shaft moves upwards along the vertical direction, so that the workpiece to be bent is lifted to the position of the uppermost workpiece when all workpieces are not bent, and the worker can bend the workpiece more conveniently; by the method, a plurality of workpieces can be placed on the bearing plate for bending, and the workpiece is not required to be taken at a workpiece taking position after a worker bends a single workpiece, and then bending is carried out, so that the physical strength of the worker is saved, and the workpiece bending efficiency is improved; and this drive division not only can drive the axis of rotation and rotate, and rotate the back that finishes, can drive the axis of rotation and carry out the lifting to need not to set up the pneumatic cylinder and carry out the lifting to the loading board, and then resources are saved.

Optionally, the limiting portion includes a limiting block, a ratchet wheel and a pawl, a limiting groove is formed in the inner wall of the sleeve, the limiting block is fixed to the rotating shaft, the limiting block is inserted into the limiting groove and slides in the limiting groove, the ratchet wheel is coaxially sleeved on the sleeve, the pawl is rotatably connected with the inner wall of the accommodating cavity, and the pawl is matched with the ratchet wheel.

By adopting the technical scheme, when the micro motor is driven to rotate forwards, the pawl does not clamp the ratchet wheel, and the screw rod drives the rotating shaft and the sleeve to rotate in sequence through the arrangement of the limiting block; when the micro motor is driven to rotate reversely, the pawl clamps the ratchet wheel so that the sleeve does not rotate, and then the rotating shaft does not rotate in the sleeve due to the arrangement of the limiting block; at this time, the screw rod is in threaded connection with the rotating shaft and rotates, so that the rotating shaft moves upwards along the vertical direction.

In summary, the present application includes at least one of the following benefits:

1. when the device is used, the rotating shaft is released through the bearing assembly so that the rotating shaft can rotate; then, rotating the rotating shaft according to the width of the workpiece until the rotating shaft is adjusted to an angle meeting the width of the workpiece, and then tightening the rotating shaft through the bearing assembly again; except the special condition that the width of the workpiece is actually overlarge, the connection mode of the bearing plate and the rack can stably bear the workpieces with different widths, so that the applicability is higher; when need not to bend the work piece, can loosen the axis of rotation through carrier assembly earlier and put, then rotate the axis of rotation, parallel with the frame until the loading board, tighten up the axis of rotation through carrier assembly once more at last to reduce the space that occupies when the loading board need not to use, and then make the staff be difficult for the mistake to hit the loading board when walking about the frame, thereby improved the security.

2. When the device is used, the ring plate and the straight plate are released through the tightening part so as to release the rotating shaft; then rotating the rotating shaft by a proper angle according to the width of the workpiece; after the rotation is finished, the ring plate and the straight plate are tightened through the tightening part again to tighten the rotating shaft, so that the rotating shaft is not easy to rotate, and a workpiece is conveniently borne.

3. When the tool is used, a worker holds the handle and then rotates the handle to unscrew the tightening bolt, so that the rotating shaft is loosened; then rotating the rotating shaft by a proper angle according to the width of the workpiece; after the rotation is finished, the tightening bolt is screwed down by holding the handle and rotating in the opposite direction, so that the ring plate and the straight plate are tightened, the rotating shaft is tightened, and the rotating shaft is not easy to rotate so as to bear a workpiece.

Drawings

Fig. 1 is a schematic view of a plate bending machine in the related art.

Fig. 2 is a schematic view of a plate bending machine according to an embodiment of the present application.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic view of a plate bending machine according to a second embodiment of the present application.

Fig. 5 is a schematic structural diagram for embodying a driving portion in the second embodiment of the present application.

Fig. 6 is an enlarged view of fig. 5 at B.

Fig. 7 is an enlarged view at C in fig. 4.

In the figure: 1. a frame; 11. an upper die holder; 111. an upper die; 12. a lower die holder; 121. a lower die; 13. a rotating shaft; 131. a base plate; 132. a threaded hole; 14. a carrier plate; 2. a load bearing assembly; 21. a bearing part; 211. a fixture; 2111. a straight plate; 2112. a ring plate; 212. lapping a coupling; 22. a tightening part; 221. tightening the bolts; 222. a handle; 23. a support portion; 231. a support plate; 2311. a chute; 2312. a containing groove; 2313. a locking groove; 2314. a through groove; 232. a support block; 2321. an accommodating cavity; 24. a moving part; 241. a slider; 2411. a housing hole; 242. a ball bearing; 243. a blocking sheet; 25. a lock section; 251. an extension rod; 2511. a locking hole; 252. locking the bolt; 26. a drive section; 261. a micro-motor; 262. a screw; 263. a sleeve; 2631. a limiting groove; 264. a first foot switch; 265. a second foot switch; 27. a limiting part; 271. a limiting block; 272. a pawl; 273. and (4) ratchet wheels.

Detailed Description

The present application is described in further detail below with reference to figures 2-7.

The embodiment of the application discloses sheet bending machine.

The first embodiment is as follows:

referring to fig. 2, a plate bending machine includes a frame 1, and an upper die holder 11 and a lower die holder 12 which are arranged on the frame 1, wherein the bottom of the upper die holder 11 is slidably connected with an upper die 111, the top of the lower die holder 12 is slidably connected with a lower die 121, and both the upper die 111 and the lower die 121 can slide along the length direction of the frame 1 to adjust the installation positions of the upper die 111 and the lower die 121. Be provided with bearing board 14 on the frame 1, bearing board 14 establishes to a pair of in this application embodiment, and two bearing boards 14 arrange and be certain interval setting between two bearing boards 14 along the length direction of frame 1. In use, a workpiece is placed on the carrier plate 14 and then pushed toward the top of the lower die 121; after the pushing is finished, the upper die 111 is driven to move towards the lower die 121 until the workpiece is bent, and finally the upper die 111 is driven to be away from the lower die 121 and the bent workpiece is taken down from the lower die 121.

Referring to fig. 3, a backing plate 131 is connected to one end of the bottom of the bearing plate 14, and in the embodiment of the present application, the backing plate 131 is fixed to the bearing plate 14 by bolts, so that when a special condition that the width of a workpiece is actually too large occurs, a worker can replace the bearing plate 14 with a longer length to adapt to the workpiece with the too large width. A rotating shaft 13 is fixedly arranged at the center of the bottom of the backing plate 131, and a bearing assembly 2 is arranged between the rotating shaft 13 and the frame 1. When the device is used, the rotating shaft 13 is released through the bearing assembly 2, so that the rotating shaft 13 can rotate; then, the rotating shaft 13 is rotated according to the width of the workpiece, the angle between the bearing plate 14 and the rack 1 is indirectly adjusted, and the larger the width of the workpiece is, the larger the angle is; the smaller the width of the workpiece, the smaller the angle; until the angle is adjusted to meet the width of the workpiece, the rotating shaft 13 is tightened again through the bearing assembly 2, so that the rotating shaft 13 is not easy to rotate, and finally the workpiece is bent; except for the special condition that the width of the workpiece is actually overlarge, the connection mode of the bearing plate 14 and the rack 1 can stably bear workpieces with different widths, so that the applicability is higher;

when need not to bend the work piece, can relax rotation axis 13 through carrier assembly 2 earlier, then rotate rotation axis 13, until loading board 14 is parallel with frame 1, tighten up rotation axis 13 through carrier assembly 2 once more at last, so that rotation axis 13 is difficult for taking place to rotate, thereby reduce the space that occupies when loading board 14 need not the use, and then make the staff be difficult for the mistake to hit loading board 14 when walking around frame 1, thereby the security has been improved.

Referring to fig. 3, the bearing assembly 2 includes a bearing portion 21 and a tightening portion 22, the bearing portion 21 includes a fixture 211 and a strap 212, the fixture 211 includes a straight plate 2111 and a ring plate 2112 in this embodiment, the straight plate 2111 and the ring plate 2112 are made of rubber material in this embodiment, a plurality of adjusting holes are opened on one side of the rack 1 close to the rotating shaft 13 and along the length direction of the rack 1, the straight plate 2111 is connected in the adjusting holes through bolt threads to be fixed with the rack 1, the adjusting holes are used for adjusting the distance between the two bearing plates 14, thereby adapting to workpieces with different lengths.

Referring to fig. 3, one end of the ring plate 2112 is integrally formed with the straight plate 2111, the other end is connected to the straight plate 2111 through the tightening portion 22, the rotation shaft 13 penetrates between the straight plate 2111 and the ring plate 2112, and the ring plate 2112 is arc-shaped so as to better fit with the rotation shaft 13. The lapping band 212 is fixedly sleeved on the rotating shaft 13 and the lapping band 212 is lapped on the top of the annular plate 2112 and the top of the straight plate 2111, the lapping band 212 is formed by fixing two half hoops through bolts in the embodiment of the application, the lapping band 212 can be stably sleeved on the rotating shaft 13 without sliding, and the lapping band 212 is used for enabling the rotating shaft 13 to be difficult to slide downwards along the vertical direction to cause the cushion plate 131 to be in contact with the clamp 211 after the rotating shaft 13 is loosened.

When in use, the ring plate 2112 and the straight plate 2111 are released through the tightening part 22, so that the rotating shaft 13 is released; then, rotating the rotating shaft 13 by a proper angle according to the width of the workpiece; after the rotation is finished, the ring plate 2112 and the straight plate 2111 are tightened again through the tightening portion 22 to tighten the rotating shaft 13, so that the rotating shaft 13 is not easy to rotate, and a workpiece is loaded.

Referring to fig. 3, the tightening portion 22 includes a handle 222 and a tightening bolt 221, and one end of the ring plate 2112, which is away from the end integrally formed with the straight plate 2111, is fixed to the straight plate 2111 by the tightening bolt 221. The handle 222 is fixedly sleeved on the tightening bolt 221 at the end of the ring plate 2112 away from the straight plate 2111, and the handle 222 is used for enabling a worker to more easily screw the tightening bolt 221. When in use, a worker holds the handle 222 and then rotates the handle 222 to loosen the tightening bolt 221, so as to loosen the rotating shaft 13; then, rotating the rotating shaft 13 by a proper angle according to the width of the workpiece; after the rotation is finished, the tightening bolt 221 is tightened by holding the handle 222 and rotating in the opposite direction, so as to tighten the ring plate 2112 and the straight plate 2111, so as to tighten the rotating shaft 13, and further, the rotating shaft 13 is not easy to rotate, so as to bear the workpiece.

Referring to fig. 2, a reinforcing rod is fixed between one end of the rotating shaft 13 far away from the bearing plate 14 and one end of the bearing plate 14 far away from the rotating shaft 13, and the reinforcing rod can improve the stability of the bearing plate 14 on the workpiece.

The implementation principle of the first embodiment of the present application is as follows: in use, a worker holds the handle 222 and then rotates the handle 222 to loosen the tightening bolt 221, thereby loosening the rotating shaft 13 so that the rotating shaft 13 can rotate; then, the rotating shaft 13 is rotated according to the width of the workpiece, the angle between the bearing plate 14 and the rack 1 is indirectly adjusted, and the larger the width of the workpiece is, the larger the angle is; the smaller the width of the workpiece, the smaller the angle; until the angle is adjusted to meet the width of the workpiece, the tightening bolt 221 is tightened by holding the handle 222 and rotating in the opposite direction, so that the ring plate 2112 and the straight plate 2111 are tightened to tighten the rotating shaft 13, and the rotating shaft 13 is not easy to rotate so as to bear the workpiece; finally, bending the workpiece; except for the special condition that the width of the workpiece is actually overlarge, the connection mode of the bearing plate 14 and the rack 1 can stably bear workpieces with different widths, so that the applicability is higher;

when the workpiece does not need to be bent, a worker holds the handle 222, and then rotates the handle 222 to loosen the tightening bolt 221 so as to loosen the rotating shaft 13; then the rotating shaft 13 is rotated until the bearing plate 14 is parallel to the rack 1, the tightening bolt 221 is tightened by holding the handle 222 and rotating in the opposite direction again, so that the ring plate 2112 and the straight plate 2111 are tightened to tighten the rotating shaft 13, and further the rotating shaft 13 is not easy to rotate, so that the space occupied by the bearing plate 14 when the bearing plate 14 is not needed to be used is reduced, and further the bearing plate 14 is not easy to be mistakenly collided by a worker when the worker walks around the rack 1, and therefore the safety is improved.

Example two:

referring to fig. 4, the difference between the first embodiment of the present application and the second embodiment of the present application is that the bearing assembly 2 in the plate bending machine includes a supporting portion 23, a driving portion 26, a limiting portion 27, a moving portion 24, and a locking portion 25, the supporting portion 23 is fixed at the bottom end of the frame 1 and is located below the bearing plate 14, and the driving portion 26 is disposed between the supporting portion 23 and the rotating shaft 13. The stopper 27 is provided between the driving portion 26 and the rotating shaft 13, the moving portion 24 is provided on the supporting portion 23, and the lock portion 25 is provided between the supporting portion 23 and the moving portion 24. When the workpiece support device is used, the distance between the two bearing plates 14 is adjusted through the moving part 24 according to the length of the workpiece, so that the bearing plates 14 can bear the workpiece; after the adjustment is finished, the moving part 24 is locked by the locking part 25, so that the bearing plate 14 is not easy to move when bearing the workpiece;

then the driving part 26 is driven to rotate forwards, at this time, the rotating shaft 13 rotates due to the limiting action of the limiting part 27, so that the rotating shaft 13 rotates at a proper angle according to the width of the workpiece; after the rotation is finished, a plurality of workpieces can be placed on the bearing plate 14, and then the workpieces from top to bottom can be sequentially bent; after a single workpiece is bent, the driving part 26 is driven to rotate reversely, and at this time, due to the limiting effect of the limiting part 27 again, the rotating shaft 13 moves upwards along the vertical direction, so that the workpiece to be bent is lifted to the position of the uppermost workpiece when all workpieces are not bent, and a worker can bend the workpiece more conveniently; this mode can place a plurality of work pieces at loading board 14 and bend, need not the staff and bend the back to single work piece, need get a department and carry out taking of work piece, then bend to not only save staff's physical power, improved the efficiency of bending the work piece moreover.

Referring to fig. 4, the supporting portion 23 includes a supporting plate 231 and two supporting blocks 232, the supporting plate 231 is fixed to the bottom end of the rack 1 and is disposed along the length direction of the rack 1, the two supporting blocks 232 are connected to the top of the supporting plate 231, and the two supporting blocks 232 are in one-to-one correspondence with the two carrier plates 14. The driving part 26 is disposed between the supporting block 232 and the rotating shaft 13, the supporting block 232 is slidably connected to the top of the supporting plate 231 through the moving part 24, and the locking part 25 is disposed between the supporting plate 231 and the moving part 24. In use, the two supporting blocks 232 are slid on the supporting plate 231 by the moving portion 24 according to the length of the workpiece to adjust the interval between the two loading plates 14, so that the loading plates 14 can load the workpiece.

Referring to fig. 5 and 6, the moving portion 24 includes a slider 241, a ball 242 and a plurality of blocking pieces 243, in the embodiment of the present application, the blocking pieces 243 are made of rubber, a sliding slot 2311 is formed at the top of the supporting plate 231 and along the length direction of the supporting plate 231, the sliding slot 2311 is a "T" shaped slot, the slider 241 is fixedly connected to the bottom of the supporting block 232, the slider 241 is a "T" shaped block, the slider 241 is inserted into the sliding slot 2311, and the slider 241 can slide along the length direction of the sliding slot 2311. The bottom wall of the slider 241 is provided with a containing hole 2411, the ball 242 is inserted into the containing hole 2411 and can roll, the ball 242 abuts against the bottom of the sliding groove 2311, and the ball 242 is used for reducing the friction force applied when the slider 241 slides in the sliding groove 2311, so that the slider 241 can be easily pushed to slide.

Referring to fig. 6, a receiving groove 2312 is formed at the bottom of the sliding groove 2311 and along the length direction of the sliding groove 2311, the blocking pieces 243 are fixed in the receiving groove 2312, the blocking pieces 243 are uniformly arranged along the length direction of the receiving groove 2312, the blocking pieces 243 at the positions where the sliding blocks 241 are fixed are bent at the bottom of the sliding blocks 241 and abutted against the bottom walls of the sliding blocks 241, and the tops of the blocking pieces 243 which are not in contact with the sliding blocks 241 are higher than the bottoms of the sliding blocks 241.

Compared with the first embodiment in which the adjustment holes are arranged at equal intervals, the distance between the two sliders 241 can be controlled more precisely by the moving portion 24.

Referring to fig. 6, the locking portion 25 includes an extension rod 251 and a locking bolt 252, a locking groove 2313 is opened on an inner wall of one side of the sliding groove 2311 and along a length direction of the sliding groove 2311, one end of the extension rod 251 is fixedly connected with a side wall of the sliding block 241 facing one side of the locking groove 2313, and the other end of the extension rod is inserted into the locking groove 2313 and can slide along the length direction of the locking groove 2313. The top of backup pad 231 and the length direction along backup pad 231 has seted up logical groove 2314, and logical groove 2314 is linked together with locking groove 2313, and extension rod 251 is located the roof of the interior one end of locking groove 2313 and has seted up locking hole 2511, and the screw 262 portion of locking bolt 252 wears to locate logical groove 2314 and extends locking groove 2313 and threaded connection in locking hole 2511, and the nut portion of locking bolt 252 offsets tightly with the roof of backup pad 231. When the locking bolt 252 is used, the locking bolt 252 is screwed out of the locking hole 2511 and taken out of the through groove 2314, and then the distance between the two sliders 241 is adjusted; after the adjustment is completed, the screw 262 of the locking bolt 252 is screwed into the locking hole 2511, and the nut of the locking bolt 252 is pressed against the top wall of the supporting plate 231, so as to complete the locking of the slider 241, so that when the bearing plate 14 bears a workpiece, the slider 241 is not easy to slide, and the stability of the bearing plate 14 in bearing the workpiece is improved.

Referring to fig. 4 and 6, the driving portion 26 includes a micro motor 261, a screw 262, a sleeve 263, a first foot switch 264 and a second foot switch 265, an accommodating cavity 2321 is opened inside the supporting block 232, and the micro motor 261 is fixed to an inner wall of the accommodating cavity 2321. First foot switch 264 and second foot switch 265 all keep away from one side of frame 1 with backup pad 231 fixedly, and first foot switch 264 and second foot switch 265 all with micro motor 261 signal connection, the effect of first foot switch 264 lies in controlling micro motor 261 and rotates forward, the effect of second foot switch 265 lies in controlling micro motor 261 and rotates backward, and first foot switch 264 and second foot switch 265 be convenient for the staff when bending the work piece, can come control micro motor 261, and the operation is convenient.

Referring to fig. 6, the sleeve 263 is rotatably connected to the top wall of the supporting block 232, the sleeve 263 penetrates into the accommodating cavity 2321, the rotating shaft 13 penetrates through the sleeve 263, and the limiting portion 27 is disposed between the sleeve 263 and the rotating shaft 13. The end wall of the rotating shaft 13, which is far away from one end of the bearing plate 14, is provided with a threaded hole 132, one end of the screw 262 is coaxially fixed with the output end of the micro-motor 261, and the other end is in threaded connection with the threaded hole 132. When the device is used, a worker steps on the first foot switch 264 to control the micro motor 261 to rotate forwards, at this time, due to the limiting effect of the limiting part 27, the screw 262, the rotating shaft 13 and the sleeve 263 rotate simultaneously, so that the rotating shaft 13 rotates at a proper angle according to the width of a workpiece; after the rotation is finished, a plurality of workpieces can be placed on the bearing plate 14, and then the workpieces from top to bottom can be sequentially bent;

after a single workpiece is bent, a worker depresses the second foot switch 265 to control the micro motor 261 to rotate reversely, at this time, due to the limiting effect of the limiting part 27 again, the sleeve 263 and the rotating shaft 13 will not rotate any more and the rotating shaft 13 will move upward in the vertical direction, so that the workpiece to be bent is lifted to the position of the uppermost workpiece when all workpieces are not bent, so that the worker can bend the workpiece more conveniently; in the mode, a plurality of workpieces can be placed on the bearing plate 14 for bending, and the workpiece is not required to be taken at a workpiece taking position after a worker bends a single workpiece, and then bending is carried out, so that the physical strength of the worker is saved, and the workpiece bending efficiency is improved; the driving part 26 can drive the rotating shaft 13 to rotate, and after the rotating part finishes rotating, the rotating shaft 13 can be driven to lift, so that a hydraulic cylinder is not needed to lift the bearing plate 14, and resources are saved; in the embodiment of the present application, when a new batch of workpieces is to be bent, the sleeve 263 needs to be fixed, and then the micro motor 261 is controlled to rotate forward, so that the rotating shaft 13 can be driven to move downward along the vertical direction.

In the embodiment of the present application, the micro motor 261 has a self-locking function in a non-operation state.

Referring to fig. 6 and 7, the limiting portion 27 includes a limiting block 271, a ratchet 273 and a pawl 272, a limiting groove 2631 is formed in the inner wall of the sleeve 263 and along the vertical direction, the limiting block 271 is fixedly connected to the side wall of the rotating shaft 13, the limiting block 271 is inserted into the limiting groove 2631, and the limiting block 271 can slide along the vertical direction. The ratchet 273 is coaxially and fixedly sleeved at one end of the sleeve 263 located in the accommodating cavity 2321, the pawl 272 is rotatably connected with the inner wall of the accommodating cavity 2321, and the pawl 272 is matched with the ratchet 273. When the micro motor 261 is driven to rotate forward, the ratchet 273 is not clamped by the pawl 272, and the screw 262 sequentially drives the rotating shaft 13 and the sleeve 263 to rotate due to the arrangement of the limiting block 271; when the micro motor 261 is driven to rotate reversely, the pawl 272 will block the ratchet 273 so that the sleeve 263 will not rotate, and then the rotating shaft 13 will not rotate in the sleeve 263 due to the arrangement of the limiting block 271; at this time, since the screw 262 is threadedly coupled to the rotating shaft 13 and the screw 262 rotates, the rotating shaft 13 moves upward in the vertical direction.

Referring to fig. 4, a connecting rod may be disposed between an end of the rotating shaft 13 far away from the bearing plate 14 and an end of the bearing plate 14 far away from the rotating shaft 13, and the connecting rod may improve the stability of the bearing plate 14 on the workpiece.

The implementation principle of the second embodiment of the present application is as follows: when the locking bolt 252 is used, the locking bolt 252 is screwed out of the locking hole 2511 and taken out of the through groove 2314, and then the distance between the two sliders 241 is adjusted; after the adjustment is finished, the screw 262 of the locking bolt 252 is screwed into the locking hole 2511, and the nut of the locking bolt 252 is pressed against the top wall of the supporting plate 231, so that the sliding block 241 is locked;

then, when the micro motor 261 is driven to rotate forward, the pawl 272 will not clamp the ratchet 273, and the rotation of the screw 262 will sequentially drive the rotating shaft 13 and the sleeve 263 to rotate due to the arrangement of the limiting block 271, so that the rotating shaft 13 can rotate at a proper angle according to the width of the workpiece; after the rotation is finished, a plurality of workpieces can be placed on the bearing plate 14, and then the workpieces from top to bottom can be sequentially bent; then, when the micro motor 261 is driven to rotate reversely, the pawl 272 clamps the ratchet 273 so that the sleeve 263 does not rotate, and then the rotating shaft 13 does not rotate in the sleeve 263 any more due to the arrangement of the limiting block 271; at this time, as the screw 262 is in threaded connection with the rotating shaft 13 and the screw 262 rotates, the rotating shaft 13 moves upwards along the vertical direction, so as to lift the workpiece to be bent to the position of the uppermost workpiece when all the workpieces are not bent, so that a worker can bend the workpiece more conveniently;

in the mode, a plurality of workpieces can be placed on the bearing plate 14 for bending, and the workpiece is not required to be taken at a workpiece taking position after a worker bends a single workpiece, and then bending is carried out, so that the physical strength of the worker is saved, and the workpiece bending efficiency is improved; and this drive division 26 not only can drive the axis of rotation 13 and rotate, and after rotating, can drive the axis of rotation 13 and carry out the lifting to need not to set up the pneumatic cylinder and carry out the lifting to loading board 14, and then resources are saved.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a sheet bending machine, includes frame (1) and upper die base (11) and die holder (12) of locating on frame (1), the bottom sliding connection of upper die base (11) has last mould (111), and the top sliding connection of die holder (12) has bed die (121), is provided with loading board (14), its characterized in that on frame (1): a backing plate (131) is connected to the bearing plate (14), a rotating shaft (13) is fixedly arranged on one side, away from the bearing plate (14), of the backing plate (131), and a bearing assembly (2) is arranged between the rotating shaft (13) and the rack (1);

the bearing assembly (2) comprises a bearing part (21) and a tightening part (22), the bearing part (21) comprises a fixture (211) and a lapping hoop (212), the rotating shaft (13) penetrates through the fixture (211), the fixture (211) is connected with the rack (1), the tightening part (22) is arranged on the fixture (211), and the lapping hoop (212) is fixedly sleeved on the rotating shaft (13) and lapped on the fixture (211);

or, the bearing assembly (2) comprises a supporting part (23), a driving part (26), a limiting part (27), a moving part (24) and a locking part (25), the supporting part (23) is fixed on the rack (1), the driving part (26) is arranged between the supporting part (23) and the rotating shaft (13), the limiting part (27) is arranged between the driving part (26) and the rotating shaft (13), the moving part (24) is arranged on the supporting part (23), and the locking part (25) is arranged between the supporting part (23) and the moving part (24).

2. A sheet bending machine according to claim 1, wherein: the fixture (211) comprises straight plates (2111) and ring plates (2112), the straight plates (2111) are connected with the rack (1), one ends of the ring plates (2112) are fixed with the straight plates (2111), and the other ends of the ring plates are connected with the straight plates (2111) through the tightening parts (22).

3. A sheet bending machine according to claim 2, wherein: the tightening part (22) comprises a handle (222) and a tightening bolt (221), one end, far away from the ring plate (2112), of the ring plate fixed with the straight plate (2111) is connected with the straight plate (2111) through the tightening bolt (221), and the handle (222) is fixedly sleeved on the tightening bolt (221).

4. A sheet bending machine according to claim 1, characterized in that: the supporting portion (23) comprises a supporting plate (231) and a supporting block (232), the supporting plate (231) is fixedly connected with the rack (1), the supporting block (232) is connected with the supporting plate (231), the driving portion (26) is arranged between the supporting block (232) and the rotating shaft (13), the moving portion (24) is arranged between the supporting plate (231) and the supporting block (232), and the locking portion (25) is arranged between the moving portion (24) and the supporting plate (231).

5. A sheet bending machine according to claim 4, characterized in that: the moving portion (24) comprises a sliding block (241), a ball (242) and a blocking piece (243), a sliding groove (2311) is formed in the supporting plate (231), the sliding block (241) is fixed to the supporting block (232), the sliding block (241) is inserted into the sliding groove (2311) and slides in the sliding groove (2311), an accommodating hole (2411) is formed in the sliding block (241), the ball (242) is inserted into the accommodating hole (2411), the ball (242) is abutted to the bottom of the sliding groove (2311), an accommodating groove (2312) is formed in the bottom of the sliding groove (2311), the blocking piece (243) is fixed into the accommodating groove (2312), the blocking piece (243) is abutted to the sliding block (241), and the locking portion (25) is arranged between the sliding block (241) and the supporting plate (231).

6. A sheet bending machine according to claim 5, wherein: the locking portion (25) comprises an extension rod (251) and a locking bolt (252), a locking groove (2313) is formed in the inner wall of the sliding groove (2311), one end of the extension rod (251) is connected with the sliding block (241), the other end of the extension rod (251) is inserted into the locking groove (2313) and slides in the locking groove (2313), a through groove (2314) is formed in the supporting plate (231), the through groove (2314) is communicated with the locking groove (2313), a locking hole (2511) is formed in the extension rod (251), a screw rod (262) portion of the locking bolt (252) penetrates through the through groove (2314) and is in threaded connection with the locking hole (2511), and a nut portion of the locking bolt (252) abuts against the supporting plate (231).

7. A sheet bending machine according to claim 6, wherein: the driving part (26) comprises a micro motor (261), a screw rod (262), a sleeve (263), a first foot switch (264) and a second foot switch (265), an accommodating cavity (2321) is formed in the supporting block (232), the micro motor (261) is fixed in the accommodating cavity (2321), the first foot switch (264) and the second foot switch (265) are fixed on the supporting plate (231) and are in signal connection with the micro motor (261), the sleeve (263) is in rotary connection with the supporting block (232) and penetrates through the accommodating cavity (2321), the rotating shaft (13) penetrates through the sleeve (263), the limiting part (27) is connected between the sleeve (263) and the rotating shaft (13), a threaded hole (132) is formed in the rotating shaft (13), one end of the screw rod (262) is coaxially fixed with the output end of the micro motor (261), and the other end of the screw rod is in the threaded hole (132).

8. A sheet bending machine according to claim 7, wherein: the limiting portion (27) comprises a limiting block (271), a ratchet wheel (273) and a pawl (272), a limiting groove (2631) is formed in the inner wall of the sleeve (263), the limiting block (271) is fixed with the rotating shaft (13), the limiting block (271) is inserted into the limiting groove (2631) and slides in the limiting groove, the ratchet wheel (273) is coaxially sleeved on the sleeve (263), the pawl (272) is rotatably connected with the inner wall of the accommodating cavity (2321), and the pawl (272) is matched with the ratchet wheel (273).