CN221184454U

CN221184454U - Rear stop device of front bending machine

Info

Publication number: CN221184454U
Application number: CN202322847388.6U
Authority: CN
Inventors: 王军
Original assignee: Ruitie Machine Tool Suzhou Co ltd
Current assignee: Ruitie Machine Tool Suzhou Co ltd
Priority date: 2023-10-24
Filing date: 2023-10-24
Publication date: 2024-06-21
Anticipated expiration: 2033-10-24

Abstract

The utility model discloses a rear material blocking device of a front bending machine, which belongs to the technical field of mechanical equipment of bending machines and comprises a supporting seat, wherein an X-axis transmission assembly for adjusting the transverse position of the device is arranged on the supporting seat; the X-axis transmission assembly comprises a first driving assembly and a transverse position adjusting device, the first driving assembly is arranged on the supporting seat, and the first driving assembly is connected with the transverse position adjusting device; the R-axis transmission assembly capable of adjusting the vertical position of the device is arranged on the transverse position adjusting device; and the R-axis transmission assembly is provided with a beam assembly for bending. Through the mode, the damage to the ball screw caused by chips generated in the bending process of the bending machine is avoided through the protective action of the support, the device cannot deviate in the moving position through the limiting action of the sliding groove, meanwhile, the structural form of front-mounted type is adopted, the total height of the beam blocking finger and the X-axis transmission part is reduced, and the positioning precision of the back blocking material is effectively improved.

Description

Rear stop device of front bending machine

Technical Field

The utility model relates to the technical field of mechanical equipment of bending machines, in particular to a front-mounted rear stop device of a bending machine.

Background

The bending machine is mainly used for bending some plates to meet the shape of the plates required by customers, but along with continuous improvement of mechanical manufacturing precision, the plates are directly placed on the bending machine to be processed, so that the precision requirement of mechanical processing cannot be met, and the accurate bending effect can be ensured only by using a baffle device to position the bending position.

For example, chinese patent No. CN211588072U discloses a rear stop device of a bending machine and a bending machine, in which a bending portion is directly fixed by a device for adjusting a position, and the bending-adjusted portion is exposed outside the device.

But it still has following drawback, and the device that directly passes through adjustment position fixes the bending machine, can cause the device unstable to cause the location not accurate enough when bending device adjustment position is higher, will modulate the lead screw direct exposure of position simultaneously can be caused the damage by the iron fillings that the bending produced.

Based on the problem, the utility model designs a front-mounted rear stop device of the bending machine to solve the problem.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model provides a rear stop device of a front bending machine.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

The rear stop device of the front bending machine comprises a supporting seat, wherein an X-axis transmission assembly for adjusting the transverse position of the device is arranged on the supporting seat;

The X-axis transmission assembly comprises a first driving assembly and a transverse position adjusting device, the first driving assembly is arranged on the supporting seat, and the first driving assembly is connected with the transverse position adjusting device;

the R-axis transmission assembly capable of adjusting the vertical position of the device is arranged on the transverse position adjusting device;

And the R-axis transmission assembly is provided with a beam assembly for bending.

Still further, drive assembly one includes motor one, motor safety cover one, ball screw, support, buffering cushion, bearing frame and supporting terminal bearing frame, supporting seat upper end fixedly connected with bearing frame, bearing frame front end fixedly connected with buffering cushion, bearing frame internal rotation is connected with ball screw, ball screw is connected with horizontal position adjusting device, ball screw rear end and motor one's output fixedly connected with motor safety cover one, motor one outer wall fixedly connected with motor safety cover one, ball screw's front end rotation is connected with supporting terminal bearing frame, supporting terminal bearing frame upper end fixedly connected with support, the support is connected with horizontal position adjusting device.

Still further, horizontal position adjustment device includes vice first of linear guide, the guide rail guard shield, the sliding block seat, sliding block seat connecting plate and nut seat, link section respectively fixedly connected with linear guide is vice first about the support, support upper end fixedly connected with guide rail guard shield, linear guide is vice being located the inside of guide rail guard shield, the vice one end sliding connection that is opposite to each other of linear guide has the sliding block seat, the upper and lower both ends of sliding block seat are fixedly connected with sliding block seat connecting plate respectively, the upper end fixedly connected with nut seat of lower extreme sliding block seat connecting plate, lower extreme sliding block seat connecting plate and ball screw threaded connection, sliding block seat connecting plate and R axle drive assembly are connected.

Furthermore, the R-axis transmission assembly comprises a second driving assembly and a vertical position adjusting device, the sliding block seat connecting plate is connected with the second driving assembly and the vertical position adjusting device, and the second driving assembly and the vertical position adjusting device are connected with the beam assembly.

Still further, drive assembly II includes motor II, motor safety cover II, motor pulley, circular arc tooth hold-in range, synchronous pulley, the lead screw, the hold-in range safety cover, lead screw safety cover and tight regulation board, the upper end fixedly connected with lead screw safety cover of upper end slider seat connecting plate, the lower extreme fixedly connected with hold-in range safety cover of upper end slider seat connecting plate, both sides rotate respectively around the inner wall of hold-in range safety cover lower extreme and are connected with synchronous pulley and motor pulley, synchronous belt safety cover upper end front side fixedly connected with motor safety cover II, lead screw safety cover is connected with vertical position adjusting device, lead screw safety cover internal thread connection has the lead screw, lead screw and vertical position adjusting device and beam subassembly are connected, lead screw lower extreme fixedly connected with synchronous pulley, synchronous pulley passes through circular arc tooth hold-in range and motor pulley transmission connection, motor pulley and the output fixedly connected with of motor II, the rear end fixedly connected with tight regulation board of motor II.

Further, the vertical position adjusting device comprises a sliding block seat, a second linear guide rail pair, a guide rail seat and a guide rail seat connecting plate, wherein the sliding block seat is fixedly connected with the left end and the right end of the sliding block seat connecting plate, one end of the sliding block seat opposite to the sliding block seat is slidably connected with the second linear guide rail pair, one end of the linear guide rail pair opposite to the sliding block seat is fixedly connected with the guide rail seat, the upper end and the lower end of the guide rail seat are respectively fixedly connected with the guide rail seat connecting plate, the upper end guide rail seat connecting plate is connected with a beam assembly, the lower end of the upper end guide rail seat connecting plate is fixedly connected with a lead screw protecting cover, and the middle part of the upper end guide rail seat connecting plate is in threaded connection with a lead screw.

Still further, the crossbeam subassembly includes guide rail assembly and keeps off and indicate the subassembly, and R axle drive assembly is connected with guide rail assembly, and guide rail assembly is connected with keeping off and indicate the subassembly.

Still further, the guide rail assembly includes crossbeam, the vice third of linear guide, stopper and silica gel end cover, and upper end guide rail seat even is pulled through nut fixedly connected with crossbeam, and equidistant fixedly connected with stopper in crossbeam upper end, both ends fixedly connected with silica gel end cover about the crossbeam, crossbeam upper end rear side fixedly connected with the vice third of linear guide, and crossbeam and the vice third of linear guide are connected with keep off and indicate the subassembly.

Furthermore, the fender is pointed the subassembly and is included fender finger seat, fender is pointed, buffer washer, latch segment, locking seat and handle, and the vice three upper ends sliding connection of linear guide has a plurality of fender finger seats, keeps off finger seat upper end fixedly connected with fender finger, keeps off finger seat left and right sides both ends fixedly connected with buffer washer, keeps off finger seat lower extreme and passes through screw fixedly connected with locking seat, locking seat lower extreme threaded connection has the handle, handle front end fixedly connected with latch segment, latch segment and crossbeam contact connection.

Further, the plug is made of a silica gel material.

Advantageous effects

According to the utility model, the motor I in the motor protection cover I of the driving component I of the X-axis driving component is used for providing power, the output end of the motor I drives one end of the ball screw to rotate in the bearing seat of the supporting end, the sliding block seat of the transverse position adjusting device is driven to move back and forth along the direction of the linear guide rail pair I fixed on the bracket by the rotation of the ball screw, the sliding block seat connecting plate and the nut seat are driven to move back and forth by the movement of the sliding block seat, the motor I is protected from damage by the guide rail protection cover, the sliding block seat is prevented from being damaged by collision with the bearing seat in the moving process by the buffering function of the buffering rubber cushion, the damage to the ball screw caused by chips generated in the bending process of the bending machine is prevented by the protection function of the bracket, the position of the device cannot deviate in the moving process by the limiting function of the sliding groove, the accurate positioning function is achieved, meanwhile, the total height of the transverse beam blocking finger and the X-axis driving part is reduced, and the positioning precision of the rear blocking material is effectively improved.

According to the utility model, the motor II in the motor protection cover II of the driving assembly is used for providing power, the output end of the motor II drives the motor belt wheel in the synchronous belt protection cover to rotate, the motor belt wheel drives the synchronous belt wheel to rotate through the circular arc tooth synchronous belt, the screw rod in the screw rod protection cover is driven to move up and down through the synchronous belt wheel so as to drive the slide block seat connecting plate to move up and down, the slide block seat is driven to move up and down along the direction of the linear guide rail pair II through the upward movement of the slide block seat connecting plate, so that the bending position is adjusted, the linear guide rail pair II and the guide rail seat connecting plate are fixed so as not to deviate, the motor belt wheel is driven to move back and forth through the adjusting plate, the circular arc tooth synchronous belt between the motor belt wheel and the synchronous belt wheel is ensured to be always kept tight through the movement of the motor belt wheel, and the supporting installation point span of the cross beam part is enlarged through the linear guide rail pair II is placed on two sides of the transverse transmission part, so that the stability of the cross beam part is effectively improved, and the accuracy is easy to adjust.

According to the utility model, the distance between the stop finger seat of the stop finger assembly on the linear guide rail pair on the cross beam is adjusted by moving the stop finger seat left and right, the stop finger and the locking seat are driven to move left and right by moving the stop finger seat, after the stop finger assembly is moved to a proper position, the locking block is driven to move forward by rotating the handle to clamp the cross beam, the two protruding parts of the cross beam are prevented from scratching a person by installing the silica gel end cover, the friction force on the surface of the cross beam is increased by installing the plug, the stop finger seat is prevented from being damaged by collision in the process of adjusting the stop finger seat by installing the buffer gasket, the material is prevented from being offset in the bending process by increasing the friction force on the surface of the bending device, and the bending precision of the device is ensured by quickly stopping the stop finger seat when the device is positioned inaccurately.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a perspective view of a main body structure of a rear striker device of a front bending machine;

FIG. 2 is a front view of a rear striker device of a front-mounted bending machine according to the present utility model;

FIG. 3 is a left side view of the rear striker X-axis drive assembly of the front bending machine of the present utility model;

FIG. 4 is a front view of the rear striker R-axle drive assembly of a front-mounted bending machine of the present utility model;

Fig. 5 is a right side view of the rear striker R-axle transmission assembly of the front bending machine of the present utility model;

FIG. 6 is a right side view of a rear dam assembly of a front-end bending machine according to the present utility model;

FIG. 7 is a cross-sectional view taken along the B-B direction of FIG. 3;

fig. 8 is a cross-sectional view taken along the A-A direction of fig. 5.

Reference numerals in the drawings represent respectively:

1. A support base 2, an X-axis drive assembly 21, a drive assembly 22, a lateral position adjustment device 211, a motor 212, a motor housing 213, a ball screw 214, a bracket 215, a cushion rubber 216, a bearing block 217, a support end bearing block 221, a linear guide pair 222, a guide rail cover 223, a slider seat 224, a slider seat connection plate 225, a nut seat 3.R, a shaft drive assembly 31, a drive assembly 32, a vertical position adjustment device 311, a motor 312, a motor housing 313, a motor pulley 314, a circular arc tooth synchronous belt 315, a synchronous pulley 316, a screw 317, a synchronous belt housing 318, a screw housing 319, a tightening plate 321, a slider seat 322, a linear guide pair 323, a guide rail seat 324, a guide rail seat connection plate 4, a cross member assembly 41, a guide rail assembly 42, a cross member 411, a linear guide rail pair three 413, a plug 414, a silica gel end cap 421, a stop finger 423, a cushion washer 424, a locking block 425, a locking block 426, a handle.

Description of the embodiments

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model is further described below with reference to examples.

Examples

Referring to fig. 1-8 of the specification, a rear stop device of a front bending machine comprises a supporting seat 1; an X-axis transmission assembly 2 for adjusting the transverse position of the device is arranged on the supporting seat 1, and the X-axis transmission assembly 2 is connected with an R-axis transmission assembly 3; the X-axis transmission assembly 2 comprises a first driving assembly 21 and a transverse position adjusting device 22, the first driving assembly 21 is arranged on the supporting seat 1, the first driving assembly 21 is connected with the transverse position adjusting device 22, and the transverse position adjusting device 22 is connected with the R-axis transmission assembly 3; the first driving assembly 21 comprises a first motor 211, a first motor protection cover 212, a ball screw 213, a support 214, a buffer rubber cushion 215, a bearing seat 216 and a supporting end bearing seat 217, wherein the bearing seat 216 is fixedly connected to the upper end of the supporting seat 1, the buffer rubber cushion 215 is fixedly connected to the front end of the bearing seat 216, the ball screw 213 is rotationally connected to the bearing seat 216, the ball screw 213 is connected with the transverse position adjusting device 22, the rear end of the ball screw 213 is fixedly connected with the output end of the first motor 211, the first motor protection cover 212 is fixedly connected to the outer wall of the first motor 211, the front end of the ball screw 213 is rotationally connected with the supporting end bearing seat 217, the upper end of the supporting end bearing seat 217 is fixedly connected with the support 214, and the support 214 is connected with the transverse position adjusting device 22.

The transverse position adjusting device 22 comprises a first linear guide rail pair 221, a guide rail shield 222, a slide block seat 223, a slide block seat connecting plate 224 and a nut seat 225, wherein the left connecting section and the right connecting section of the bracket 214 are respectively fixedly connected with the first linear guide rail pair 221, the upper end of the bracket 214 is fixedly connected with the guide rail shield 222, the first linear guide rail pair 221 is positioned in the guide rail shield 222, one opposite end of the first linear guide rail pair 221 is slidably connected with the slide block seat 223, the upper end and the lower end of the slide block seat 223 are respectively fixedly connected with the slide block seat connecting plate 224, the upper end of the lower end slide block seat connecting plate 224 is fixedly connected with the nut seat 225, the lower end slide block seat connecting plate 224 is in threaded connection with the ball screw 213, and the slide block seat connecting plate 224 is connected with the R-axis transmission assembly 3.

In the embodiment of the utility model, when the bending angle of the device needs to be adjusted, the motor I211 in the motor protection cover I212 of the driving component I21 of the X-axis transmission component 2 provides power, the output end of the motor I211 drives one end of the ball screw 213 to rotate in the bearing seat 216, the other end of the ball screw 213 rotates in the bearing seat 217 of the supporting end, the sliding block seat 223 of the transverse position adjusting device 22 is driven by the rotation of the ball screw 213 to move back and forth along the direction of the linear guide rail I221 fixed on the bracket 214, the sliding block seat connecting plate 224 and the nut seat 225 are driven by the movement of the sliding block seat 223 to move back and forth, the motor I211 is protected by the guide rail protection cover 222 so as to avoid the damage of the sliding block seat 223 and the bearing seat 216 in the moving process, the damage of the chip generated in the bending machine in the bending process is avoided by the protection effect of the bracket 214, the limit effect of the sliding groove does not deviate in the moving position, the accurate positioning effect is achieved, meanwhile, the front-mounted structure is adopted, the total height of the transverse beam stop finger and the X-axis transmission part is reduced, and the positioning accuracy is effectively improved.

An R-axis transmission assembly 3 capable of adjusting the vertical position of the device is arranged on the X-axis transmission assembly 2, and the R-axis transmission assembly 3 is connected with a beam assembly 4; the R-axis transmission assembly 3 comprises a second driving assembly 31 and a vertical position adjusting device 32, the sliding block seat connecting plate 224 is connected with the second driving assembly 31 and the vertical position adjusting device 32, and the second driving assembly 31 and the vertical position adjusting device 32 are connected with the beam assembly 4.

The second driving assembly 31 comprises a second motor 311, a second motor protection cover 312, a motor belt pulley 313, an arc tooth synchronous belt 314, a synchronous belt pulley 315, a screw rod 316, a synchronous belt protection cover 317, a screw rod protection cover 318 and a tightening plate 319, wherein the upper end of the upper end sliding block seat connecting plate 224 is fixedly connected with the screw rod protection cover 318, the lower end of the upper end sliding block seat connecting plate 224 is fixedly connected with the synchronous belt protection cover 317, the front side and the rear side of the inner wall of the lower end of the synchronous belt protection cover 317 are respectively and rotatably connected with the synchronous belt pulley 315 and the motor belt pulley 313, the front side of the upper end of the synchronous belt protection cover 317 is fixedly connected with the second motor protection cover 312, the screw rod protection cover 318 is connected with the vertical position adjusting device 32, the screw rod 316 is connected with the vertical position adjusting device 32 and the beam assembly 4, the lower end of the screw rod 316 is fixedly connected with the synchronous belt pulley 315, the synchronous belt 315 is in transmission connection with the motor belt pulley 313 through the arc tooth synchronous belt 314, and the rear end of the motor belt 313 is fixedly connected with the tightening plate 319.

The vertical position adjusting device 32 comprises a sliding block seat 321, a second linear guide pair 322, a guide rail seat 323 and a guide rail seat connecting plate 324, wherein the left end and the right end of the sliding block seat connecting plate 224 are fixedly connected with the sliding block seat 321, one end, opposite to the sliding block seat 321, of the sliding block seat is slidably connected with the second linear guide pair 322, one end, opposite to the sliding block seat 323, of the second linear guide pair 322 is fixedly connected with the guide rail seat 323, the upper end and the lower end of the guide rail seat 323 are respectively fixedly connected with the guide rail seat connecting plate 324, the upper end guide rail seat connecting plate 324 is connected with the beam assembly 4, the lower end of the upper end guide rail seat connecting plate 324 is fixedly connected with a lead screw protection cover 318, and the middle part of the upper end guide rail seat connecting plate 324 is in threaded connection with a lead screw 316.

In the embodiment of the utility model, when the device is ready for vertically adjusting the height, the motor II 311 in the motor protection cover II 312 of the driving assembly II 31 provides power, the output end of the motor II 311 drives the motor pulley 313 in the synchronous belt protection cover 317 to rotate, the motor pulley 313 drives the synchronous pulley 315 to rotate through the circular arc tooth synchronous belt 314, the synchronous pulley 315 drives the screw rod 316 in the screw rod protection cover 318 to move up and down so as to drive the slide block seat connecting plate 224 to move up and down, the slide block seat 321 is driven to move up and down along the direction of the linear guide rail II 322 through the upward movement of the slide block seat connecting plate 224, the linear guide rail II 322 and the guide rail seat connecting plate 324 are fixed so as not to deviate, the motor II 311 is regulated to move back and forth through the regulating plate 319 so as to drive the motor pulley 313 to move back and forth, the circular arc tooth synchronous belt 314 between the motor pulley 313 and the synchronous pulley 315 is ensured to be always kept tight through the movement of the motor pulley 313, and the linear guide rail II 322 is placed on two sides of the transverse transmission part so that the supporting span of the transverse beam part is large, the stability of the transverse beam part is effectively improved, and the adjustment precision is easy.

The R-axis transmission assembly 3 is provided with a beam assembly 4 for bending; the beam assembly 4 comprises a guide rail assembly 41 and a blocking finger assembly 42, the R-axis transmission assembly 3 is connected with the guide rail assembly 41, and the guide rail assembly 41 is connected with the blocking finger assembly 42; the guide rail assembly 41 comprises a cross beam 411, a linear guide rail pair III 412, a plug 413 and a silica gel end cover 414, the upper guide rail seat connecting plate 324 is fixedly connected with the cross beam 411 through a nut, the plug 413 is fixedly connected to the upper end of the cross beam 411 at equal intervals, the silica gel end cover 414 is fixedly connected to the left end and the right end of the cross beam 411, the linear guide rail pair III 412 is fixedly connected to the rear side of the upper end of the cross beam 411, and the cross beam 411 and the linear guide rail pair III 412 are connected with the finger blocking assembly 42.

The finger blocking assembly 42 comprises a finger blocking seat 421, a finger blocking 422, a buffer gasket 423, a locking block 424, a locking seat 425 and a handle 426, wherein the upper end of the linear guide rail pair III 412 is slidably connected with a plurality of finger blocking seats 421, the upper ends of the finger blocking seats 421 are fixedly connected with the finger blocking 422, the left end and the right end of the finger blocking seat 421 are fixedly connected with the buffer gasket 423, the lower ends of the finger blocking seats 421 are fixedly connected with the locking seats 425 through screws, the lower ends of the locking seats 425 are in threaded connection with the handle 426, the front ends of the handle 426 are fixedly connected with the locking blocks 424, and the locking blocks 424 are in contact connection with the cross beam 411; preferably, the plug 413 is made of a silica gel material; the silica gel plug can increase the friction force on the surface of the cross beam 411, and can resist the high temperature generated during bending and is not easy to damage.

In the embodiment of the utility model, when the bending interval is required, the blocking finger seat 421 of the blocking finger assembly 42 of the beam assembly 4 is moved left and right on the linear guide rail pair III 412 on the beam 411 to adjust the interval, the blocking finger 422 and the locking seat 425 are driven to move left and right by the movement of the blocking finger seat 421, after the blocking finger seat 421 is moved to a proper position, the locking block 424 is driven by the rotating handle 426 to move forward to clamp the beam 411, the silica gel end cover 414 is arranged to prevent people from being scratched by the protruding parts on the two sides of the beam 411, the friction force on the surface of the beam 411 is increased by the installation of the plug 413, the buffer gasket 423 is arranged to prevent the collision from damaging each other in the process of adjusting the blocking finger seat 421, the material is prevented from being offset in the bending process by the friction force on the surface of the bending device, and the blocking finger seat 421 can be adjusted rapidly when the device is positioned inaccurately, so that the bending accuracy of the device is ensured.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a front-mounted bender back stop device, includes supporting seat (1), its characterized in that:

an X-axis transmission assembly (2) for adjusting the transverse position of the device is arranged on the supporting seat (1);

The X-axis transmission assembly (2) comprises a first driving assembly (21) and a transverse position adjusting device (22), the first driving assembly (21) is arranged on the supporting seat (1), and the first driving assembly (21) is connected with the transverse position adjusting device (22);

The transverse position adjusting device (22) is provided with an R-axis transmission assembly (3) capable of adjusting the vertical position of the device;

and the R-axis transmission assembly (3) is provided with a beam assembly (4) for bending.

2. The rear stock stop of the front bending machine according to claim 1, wherein the first driving component (21) comprises a first motor (211), a first motor protection cover (212), a ball screw (213), a support (214), a buffer rubber pad (215), a bearing seat (216) and a support end bearing seat (217), the upper end of the support seat (1) is fixedly connected with the bearing seat (216), the front end of the bearing seat (216) is fixedly connected with the buffer rubber pad (215), the bearing seat (216) is rotationally connected with the ball screw (213), the ball screw (213) is connected with a transverse position adjusting device (22), the rear end of the ball screw (213) is fixedly connected with the output end of the first motor (211), the outer wall of the first motor (211) is fixedly connected with the first motor protection cover (212), the front end of the ball screw (213) is rotationally connected with the support end bearing seat (217), the upper end of the support end bearing seat (217) is fixedly connected with the support (214), and the support (214) is connected with the transverse position adjusting device (22).

3. The rear stop device of a front bending machine according to claim 2, wherein the transverse position adjusting device (22) comprises a linear guide pair (221), a guide rail shield (222), a slide block seat (223), a slide block seat connecting plate (224) and a nut seat (225), the left and right connecting sections of the support (214) are respectively fixedly connected with the linear guide pair (221), the upper end of the support (214) is fixedly connected with the guide rail shield (222), the linear guide pair (221) is positioned in the guide rail shield (222), one opposite end of the linear guide pair (221) is slidably connected with the slide block seat (223), the upper end and the lower end of the slide block seat (223) are respectively fixedly connected with the slide block seat connecting plate (224), the upper end of the lower end slide block seat connecting plate (224) is fixedly connected with the nut seat (225), the lower end slide block seat connecting plate (224) is in threaded connection with the ball screw (213), and the slide block seat connecting plate (224) is connected with the R-axis transmission assembly (3).

4. A rear blanking device of a front bending machine according to claim 3, characterized in that the R-axis transmission assembly (3) comprises a second driving assembly (31) and a vertical position adjusting device (32), the slide block seat connecting plate (224) is connected with the second driving assembly (31) and the vertical position adjusting device (32), and the second driving assembly (31) and the vertical position adjusting device (32) are connected with the beam assembly (4).

5. The rear stock stop of the front bending machine as set forth in claim 4, wherein the second driving assembly (31) comprises a second motor (311), a second motor protecting cover (312), a second motor protecting cover (313), an arc tooth synchronous belt (314), a synchronous pulley (315), a screw rod (316), a synchronous pulley protecting cover (317), a screw rod protecting cover (318) and a tightening plate (319), wherein the screw rod protecting cover (318) is fixedly connected to the upper end of the upper end sliding block seat connecting plate (224), the synchronous pulley protecting cover (317) is fixedly connected to the lower end of the upper end sliding block seat connecting plate (224), the synchronous pulley (315) and the motor pulley (313) are respectively and rotatably connected to the front side and the rear side of the inner wall of the lower end of the synchronous pulley protecting cover (317), the second motor protecting cover (312) is fixedly connected to the front side of the upper end of the synchronous pulley protecting cover (317), the screw rod protecting cover (318) is connected with the vertical position adjusting device (32), the screw rod protecting cover (316) is internally connected with the screw rod (316) through threads, the screw rod (316) is connected with the vertical position adjusting device (32) and the beam assembly (4), the lower end of the screw rod (316) is fixedly connected with the synchronous pulley (315), the motor (315) is fixedly connected with the second motor (313) through the arc tooth belt (313) and the second motor protecting cover (313), the rear end of the motor II (311) is fixedly connected with a tightening plate (319).

6. The rear stop device of a front bending machine according to claim 5, wherein the vertical position adjusting device (32) comprises a sliding block seat (321), a second linear guide rail pair (322), a guide rail seat (323) and a guide rail seat connecting plate (324), the sliding block seat (321) is fixedly connected to the left end and the right end of the sliding block seat connecting plate (224), one opposite end of the sliding block seat (321) is slidably connected with the second linear guide rail pair (322), one opposite end of the second linear guide rail pair (322) is fixedly connected with the guide rail seat (323), the upper end and the lower end of the guide rail seat (323) are respectively fixedly connected with the guide rail seat connecting plate (324), the lower end of the upper end guide rail seat connecting plate (324) is fixedly connected with a lead screw protecting cover (318), and the middle part of the upper end guide rail seat connecting plate (324) is in threaded connection with a lead screw (316).

7. The rear stop device of a front bending machine according to claim 6, wherein the beam assembly (4) comprises a guide rail assembly (41) and a stop finger assembly (42), the R-axis transmission assembly (3) is connected with the guide rail assembly (41), and the guide rail assembly (41) is connected with the stop finger assembly (42).

8. The rear stop device of a front bending machine according to claim 7, wherein the guide rail assembly (41) comprises a cross beam (411), a linear guide rail pair III (412), a plug (413) and a silica gel end cover (414), the upper guide rail seat connecting plate (324) is fixedly connected with the cross beam (411) through a nut, the upper end of the cross beam (411) is fixedly connected with the plug (413) at equal intervals, the left end and the right end of the cross beam (411) are fixedly connected with the silica gel end cover (414), the rear side of the upper end of the cross beam (411) is fixedly connected with the linear guide rail pair III (412), and the cross beam (411) and the linear guide rail pair III (412) are connected with the stop finger assembly (42).

9. The rear stop device of a front bending machine according to claim 8, wherein the stop finger assembly (42) comprises a stop finger seat (421), a stop finger (422), a buffer gasket (423), a locking block (424), a locking seat (425) and a handle (426), the upper end of the linear guide pair III (412) is slidably connected with a plurality of stop finger seats (421), the upper end of the stop finger seat (421) is fixedly connected with the stop finger (422), the left end and the right end of the stop finger seat (421) are fixedly connected with the buffer gasket (423), the lower end of the stop finger seat (421) is fixedly connected with the locking seat (425) through a screw, the lower end of the locking seat (425) is in threaded connection with a handle (426), the front end of the handle (426) is fixedly connected with the locking block (424), and the locking block (424) is in contact connection with the cross beam (411).

10. A rear blanking device of a front-end bending machine according to claim 9, characterized in that the plug (413) is made of a silicone material.