Bending machine equipment with rear material blocking position capable of being automatically adjusted

Abstract

The invention discloses bending machine equipment with a rear material blocking position capable of being automatically adjusted, the bending machine equipment comprises a bending machine frame body, a supporting carriage frame is fixedly welded to the front side of the bottom of the bending machine frame body, and a workpiece mold is installed at the top of the supporting carriage frame. An existing design of a single sliding block plate is abandoned, the main sliding block plate and the depth expansion sliding block plate are arranged to form a split two-section type sliding block plate, and the first reinforcing rib frame and the second reinforcing rib frame are arranged on the surfaces of the main sliding block plate and the depth expansion sliding block plate correspondingly, so that the sliding block plate serves as a reinforced stress-resistant structure; a loading position of a depth expansion adjusting driving structure-expansion oil cylinder is further provided, so that the depth of the sliding block plate structure can be adjusted conveniently, the effect of improving the expansibility of the sliding block plate structure is achieved, machining of different products with large bending range differences is facilitated, and the machining efficiency is improved. Therefore, the automatic adjustment range of the rear material blocking position is expanded, and automatic adjustment of the rear material blocking structure is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of bending machine equipment, and in particular to a bending machine equipment with an automatically adjustable back gauge position. Background Art

[0002] A bending machine is a mechanical device used for processing metal sheets. The bending machine can bend the metal sheets into the required shapes and angles. By applying pressure, the bending machine can cause plastic deformation of the metal sheets between the dies, thereby achieving an accurate bending effect. Generally, the bending machine processes relatively thin metal sheets. The bending machine is widely used in the manufacturing industry for making various metal parts and structural components. The working principle of the bending machine is to complete the bending operation of the sheet through the movement of the upper and lower dies. The specific steps for the bending machine to perform the bending process of metal sheets are generally as follows: Place the metal sheet on the workbench, adjust the height and bending angle of the workbench, set the required bending angle and position, start the bending machine, the drive system drives the upper and lower dies to move, the upper die moves downward to contact the sheet and apply pressure to bend it into the required shape, and finally the upper die retracts to complete one bending operation.

[0003] Bending machines are generally classified into manual bending machines and hydraulic bending machines according to the power type. Manual bending machines are simple to operate and low in cost, but they are only suitable for lightweight and small-batch production and relatively simple bending processes. The hydraulic bending machine is driven by a hydraulic system, which can not only complete the bending of larger-sized sheets, but also has high working efficiency and is suitable for larger-batch production. The hydraulic bending machine is also the most widely used bending machine equipment.

[0004] Existing hydraulic bending machines basically adopt a single slider plate design. Some may be provided with reinforcing rib-like structures on the front or rear sides of the slider plate. However, during operation, the adjustment of the operating depth depends on the numerical control adjustment of the hydraulic system. It is difficult to adjust the longitudinal depth of the single fixed slider plate structure itself, resulting in poor expansibility of the slider plate, which is not conducive to adapting to the processing of different products with large differences in the bending range. The defect in the expansibility of the slider plate limits the automatic adjustment range of the back gauge position and is not conducive to the automatic adjustment of the back gauge structure. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a bending machine equipment with an automatically adjustable back gauge position, and solves the problems raised in the above background art.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A bending machine device with an automatically adjustable rear stop position, comprising a bending machine frame body. At the front side of the bottom of the bending machine frame body, a support box frame is fixedly welded. A workpiece mold is installed on the top of the support box frame. At the top of the front side of the bending machine frame body, a bending main oil cylinder is fixedly installed. At the output end of the bottom of the bending main oil cylinder, a main slider plate is installed. At the bottom of the front side and the bottom of the back side of the main slider plate, first reinforcing rib frames are assembled. An extension oil cylinder is fixedly assembled on the surface of the first reinforcing rib frame. At the output end of the bottom of the extension oil cylinder, a second reinforcing rib frame is fixedly installed. A depth extension slider plate is fixedly assembled on the surface of the second reinforcing rib frame. The bottom of the depth extension slider plate is fixedly connected to a bending tool part.

[0008] Preferably, the bending machine frame body includes side plate frames, oil cylinder loading plate frames and cross beam top box frames. The number of both the side plate frames and the oil cylinder loading plate frames is two, and the two oil cylinder loading plate frames are respectively fixedly welded at the tops of the front sides of the two side plate frames. The cross beam top box frame is fixedly welded at the tops of the opposite sides of the two side plate frames. The support box frame includes a support box frame body and a workpiece mold loading groove frame. The workpiece mold loading groove frame is fixedly welded on the top of the support box frame body. The workpiece mold is assembled inside the support box frame body.

[0009] Preferably, the bending main oil cylinder includes a bending main oil cylinder body and a main oil cylinder piston. The main oil cylinder piston is output-connected to the bottom of the bending main oil cylinder body. The bending main oil cylinder body is assembled on the front side of the oil cylinder loading plate frame. The bottom end of the main oil cylinder piston is connected to the main slider plate. A longitudinal guide rail sleeve is fixedly installed on one side of the bending main oil cylinder body close to the main slider plate. Longitudinal guide rails are fixedly installed above both sides of the main slider plate. The longitudinal guide rails are longitudinally slidably connected inside the longitudinal guide rail sleeve.

[0010] Preferably, the first reinforcing rib frame includes a first reinforcing cross rib plate, a first assembly bolt, a reinforcing bar and a connecting carrier plate. The first reinforcing cross rib plate is assembled and fixed to the main slider plate through the first assembly bolt. The reinforcing bar is fixedly welded on the surface of the first reinforcing cross rib plate away from the main slider plate. The connecting carrier plate is fixedly welded on one side surface of the reinforcing bar away from the first reinforcing cross rib plate.

[0011] Preferably, the extension oil cylinder includes an extension oil cylinder body and an extension oil cylinder piston. The extension oil cylinder piston is output-connected to the bottom of the extension oil cylinder body. The extension oil cylinder body is fixedly assembled on the surface of the connecting carrier plate.

[0012] Preferably, the second reinforcing rib frame includes a second reinforcing transverse rib plate, a second assembly thread, a reinforcing transverse load plate, and a reinforcing angle plate. The second reinforcing transverse rib plate is fixedly assembled to the front and back sides of the depth extension slider plate through the second assembly thread. The reinforcing transverse load plate and the reinforcing angle plate are fixedly welded to the side surface of the second reinforcing transverse rib plate away from the depth extension slider plate. The reinforcing angle plate is fixedly welded to the top and bottom surfaces of the reinforcing transverse load plate. The bottom end of the extension oil cylinder piston is fixedly connected to the top surface of the reinforcing transverse load plate.

[0013] Preferably, the bending tool part includes a bending tool loading groove frame and a bending tool body. The bending tool body is installed at the bottom of the bending tool loading groove frame. The bending tool loading groove frame is fixedly welded to the bottom end of the depth extension slider plate.

[0014] Preferably, a guide rail groove cavity and a guide rail top arc groove are penetrated and opened at the top corner of the side of the main slider plate. The guide rail top arc groove is communicated and arranged at the top of the guide rail groove cavity. An arc guide rail and a guide rail bolt are provided at the bottom of the main oil cylinder piston. The arc guide rail penetrates through the top wall of the main slider plate and the groove wall of the guide rail top arc groove. The arc guide rail and the guide rail bolt fix the main oil cylinder piston and the main slider plate in the guide rail groove cavity and the guide rail top arc groove.

[0015] Preferably, an anti-offset load guide rail scale plate is fixedly assembled at the bottom of the back side surface of the main oil cylinder piston. A clamping plate frame mechanism is fixedly installed at the back side corner of the main slider plate. A guide wheel mechanism is installed on the surface of the clamping plate frame mechanism and the main slider plate. The side surface of the anti-offset load guide rail scale plate is slidably lapped with the surface of the guide wheel mechanism and the inner side wall of the clamping plate frame mechanism.

[0016] Preferably, the clamping plate frame mechanism includes a clamping plate frame support plate and a clamping plate frame panel. The clamping plate frame panel is fixedly assembled to the clamping plate frame support plate through bolts, and the clamping plate frame support plate is fixedly welded to the back of the main slider plate. The guide wheel mechanism includes a guide wheel shaft and a guide wheel body. The guide wheel body is rotatably sleeved on the surface of the guide wheel shaft. The end of the guide wheel shaft is fixedly connected to the clamping plate frame panel and the main slider plate. The guide wheel body is lapped with the anti-offset load guide rail scale plate. The side of the anti-offset load guide rail scale plate away from the guide wheel body is slidably lapped with the side wall of the clamping plate frame support plate. A wheel position groove is opened at the position of the guide wheel body on the clamping plate frame support plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The bending machine device with an automatically adjustable rear stop position abandons the existing single slider plate design, and sets a main slider plate and a depth expansion slider plate to form a split two-section slider plate design. First and second stiffening rib frames are respectively arranged on the surfaces of the main slider plate and the depth expansion slider plate, which not only serve as stress-resistant structures but also provide loading positions for the depth expansion adjustment drive structure, i.e., the expansion oil cylinder, so as to facilitate the adjustment of the depth of the slider plate structure itself, achieving the effect of improving the expansibility of the slider plate structure, being more conducive to processing different products with large differences in bending ranges, thus expanding the automatically adjustable range of the rear stop position and facilitating the automatic adjustment of the rear stop structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a front-side perspective view of the structure of the present invention;

[0020] Figure 2 is a back-side perspective view of the structure of the present invention;

[0021] Figure 3 is a perspective view of a partial structure of the present invention;

[0022] Figure 4 is a perspective view of another partial structure of the present invention;

[0023] Figure 5 is a perspective view of the first stiffening rib frame of the present invention;

[0024] Figure 6 is a perspective view of the expansion oil cylinder of the present invention;

[0025] Figure 7 is a perspective view of the second stiffening rib frame of the present invention.

[0026] In the figures: 1, bending machine frame body; 2, support box frame; 3, workpiece mold; 4, bending main oil cylinder; 5, main slider plate; 6, first stiffening rib frame; 7, expansion oil cylinder; 8, second stiffening rib frame; 9, depth expansion slider plate; 10, bending tool part; 11, guide rail groove cavity; 12, top arc groove of the guide rail; 13, arc guide rail; 14, guide rail bolt; 15, clamping plate frame mechanism; 16, anti-offset load guide rail ruler plate; 17, guide wheel mechanism; 18, longitudinal guide rail sleeve; 19, longitudinal guide rail.

[0027] 101, Side plate frame; 102, Oil cylinder loading plate frame; 103, Cross beam top box frame; 201, Support box frame body; 202, Workpiece mold loading groove frame; 401, Bending main oil cylinder body; 402, Main oil cylinder piston; 601, First reinforcing cross rib plate; 602, First assembly bolt; 603, Reinforcing bar; 604, Connecting carrier plate; 701, Extension oil cylinder body; 702, Extension oil cylinder piston; 801, Second reinforcing cross rib plate; 802, Second assembly thread; 803, Reinforcing cross carrier plate; 804, Reinforcing angle plate; 1001, Bending tool loading groove frame; 1002, Bending tool body; 1501, Clamping plate frame support plate; 1502, Clamping plate frame panel; 1701, Guide wheel shaft; 1702, Guide wheel body. Detailed implementation manner

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment: Refer to Figure 1-7 , A bending machine device with an automatically adjustable rear stop position, including a bending machine frame body 1. The front side of the bottom of the bending machine frame body 1 is fixedly welded with a support box frame 2. A workpiece mold 3 is installed on the top of the support box frame 2. A bending main oil cylinder 4 is fixedly installed on the top of the front side of the bending machine frame body 1. The bottom output end of the bending main oil cylinder 4 is installed with a main slider plate 5. The bottom of the front side and the bottom of the back side of the main slider plate 5 are both assembled with a first reinforcing frame 6. The surface of the first reinforcing frame 6 is fixedly assembled with an extension oil cylinder 7. The bottom output end of the extension oil cylinder 7 is fixedly installed with a second reinforcing frame 8. The surface of the second reinforcing frame 8 is fixedly assembled with a depth extension slider plate 9. The bottom of the depth extension slider plate 9 is fixedly connected with a bending tool part 10.

[0030] In the present invention, the bending machine frame body 1 includes a side plate frame 101, an oil cylinder loading plate frame 102, and a cross beam top box frame 103. The number of the side plate frames 101 and the oil cylinder loading plate frames 102 is two, and the two oil cylinder loading plate frames 102 are respectively fixedly welded to the top of the front sides of the two side plate frames 101. The cross beam top box frame 103 is fixedly welded to the top of the opposite sides of the two side plate frames 101; the support box frame 2 includes a support box frame body 201 and a workpiece mold loading groove frame 202. The workpiece mold loading groove frame 202 is fixedly welded to the top of the support box frame body 201. The workpiece mold 3 is assembled inside the support box frame body 201;

[0031] More specifically, by arranging the workpiece mold 3 inside the support frame body 201, the support frame body 201 can provide a relatively large stress load, making the processing more stable.

[0032] In the present invention, the bending main oil cylinder 4 includes a bending main oil cylinder body 401 and a main oil cylinder piston 402. The output of the main oil cylinder piston 402 is connected to the bottom of the bending main oil cylinder body 401. The bending main oil cylinder body 401 is assembled on the front side of the oil cylinder loading plate frame 102, and the bottom end of the main oil cylinder piston 402 is connected to the main slider plate 5. A longitudinal guide rail sleeve 18 is fixedly installed on one side of the bending main oil cylinder body 401 close to the main slider plate 5. Longitudinal guide rails 19 are fixedly installed above both sides of the main slider plate 5, and the longitudinal guide rails 19 are longitudinally slidably connected inside the longitudinal guide rail sleeve 18.

[0033] More specifically, by setting the sliding fit between the longitudinal guide rail sleeve 18 and the longitudinal guide rails 19, the stability of the longitudinal movement of the main slider plate 5 is ensured, making both sides of the main slider plate 5 more balanced and not prone to deflection.

[0034] In the present invention, the first reinforcing rib frame 6 includes a first reinforcing cross rib plate 601, a first assembly bolt 602, a reinforcing bar 603, and a connecting carrier plate 604. The first reinforcing cross rib plate 601 is assembled and fixed to the main slider plate 5 through the first assembly bolt 602. The reinforcing bar 603 is welded and fixed to the surface of the first reinforcing cross rib plate 601 away from the main slider plate 5, and the connecting carrier plate 604 is welded and fixed to one side surface of the reinforcing bar 603 away from the first reinforcing cross rib plate 601.

[0035] More specifically, by setting the structural combination of the reinforcing bar 603 and the first reinforcing cross rib plate 601 and fixing them on the surface of the main slider plate 5, the rigidity of the main slider plate 5 is improved.

[0036] In the present invention, the expansion oil cylinder 7 includes an expansion oil cylinder body 701 and an expansion oil cylinder piston 702. The output of the expansion oil cylinder piston 702 is connected to the bottom of the expansion oil cylinder body 701, and the expansion oil cylinder body 701 is fixedly assembled on the surface of the connecting carrier plate 604.

[0037] More specifically, by setting the expansion oil cylinder body 701 fixedly assembled on the surface of the connecting carrier plate 604, after the connecting carrier plate 604 is connected to the reinforcing bar 603, while ensuring the assembly position, the structure of the reinforcing bar 603 is also strengthened.

[0038] In the present invention, the second reinforcing rib frame 8 includes a second reinforcing transverse rib plate 801, a second assembly thread 802, a reinforcing transverse load plate 803 and a reinforcing gusset plate 804. The second reinforcing transverse rib plate 801 is assembled and fixed to the front side and the back side of the depth expansion slider plate 9 through the second assembly thread 802. The reinforcing transverse load plate 803 and the reinforcing gusset plate 804 are fixedly welded to the side surface of the second reinforcing transverse rib plate 801 away from the depth expansion slider plate 9. The reinforcing gusset plate 804 is fixedly welded to the top surface and the bottom surface of the reinforcing transverse load plate 803. The bottom end of the expansion oil cylinder piston 702 is fixedly connected to the top surface of the reinforcing transverse load plate 803.

[0039] More specifically, by setting the reinforcing gusset plate 804 fixedly welded to the top surface and the bottom surface of the reinforcing transverse load plate 803, the stress resistance quality of the depth expansion slider plate 9 is further enhanced, and the stress resistance quality of the structure of the reinforcing transverse load plate 803 is also improved, ensuring the stability of the reinforcing transverse load plate 803 to provide loading and force bearing for the expansion oil cylinder piston 702.

[0040] In the present invention, the bending tool part 10 includes a bending tool loading groove frame 1001 and a bending tool body 1002. The bending tool body 1002 is installed at the bottom of the bending tool loading groove frame 1001, and the bending tool loading groove frame 1001 is fixedly welded to the bottom end of the depth expansion slider plate 9.

[0041] More specifically, by setting the bending tool loading groove frame 1001 fixedly welded to the bottom end of the depth expansion slider plate 9, it provides for the assembly of different bending tools.

[0042] In the present invention, a guide rail groove cavity 11 and a guide rail top arc groove 12 are penetrated and opened at the top corner of the side of the main slider plate 5. The guide rail top arc groove 12 is communicated and arranged at the top of the guide rail groove cavity 11. An arc guide rail 13 and a guide rail bolt 14 are provided at the bottom of the main oil cylinder piston 402. The arc guide rail 13 penetrates through the top wall of the main slider plate 5 and the groove wall of the guide rail top arc groove 12, and the arc guide rail 13 and the guide rail bolt 14 realize the fixation of the main oil cylinder piston 402 and the main slider plate 5 in the guide rail groove cavity 11 and the guide rail top arc groove 12.

[0043] More specifically, by setting the guide rail top arc groove 12 communicated and arranged at the top of the guide rail groove cavity 11, when the arc guide rail 13 provides the installation of the main oil cylinder piston 402 therein, the eccentric load capacity of the main slider plate 5 will be better. That is, when the force is uneven, the arc design of the guide rail top arc groove 12 makes the main slider plate 5 less likely to deform.

[0044] In the present invention, an anti-offset load guide scale plate 16 is fixedly assembled at the bottom of the back surface of the main cylinder piston 402. A clamping plate frame mechanism 15 is fixedly installed at the back side corners of the main slider plate 5. A guide wheel mechanism 17 is installed on the surfaces of the clamping plate frame mechanism 15 and the main slider plate 5. The side surface of the anti-offset load guide scale plate 16 is in sliding lap joint with the surface of the guide wheel mechanism 17 and the inner side wall of the clamping plate frame mechanism 15;

[0045] More specifically, by setting the side surface of the anti-offset load guide scale plate 16 to be in sliding lap joint with the surface of the guide wheel mechanism 17 and the inner side wall of the clamping plate frame mechanism 15, when the main slider plate 5 moves longitudinally, it can be kept stable through the sliding between the anti-offset load guide scale plate 16 and the clamping plate frame mechanism 15, avoiding deviation of the main slider plate 5 and ensuring the accuracy of bending processing.

[0046] In the present invention, the clamping plate frame mechanism 15 includes a clamping plate frame support plate 1501 and a clamping plate frame panel 1502. The clamping plate frame panel 1502 is assembled and fixed to the clamping plate frame support plate 1501 by bolts, and the clamping plate frame support plate 1501 is fixedly welded to the back surface of the main slider plate 5. The guide wheel mechanism 17 includes a guide wheel shaft 1701 and a guide wheel body 1702. The guide wheel body 1702 is rotatably sleeved on the surface of the guide wheel shaft 1701. The end of the guide wheel shaft 1701 is fixedly connected to the clamping plate frame panel 1502 and the main slider plate 5. The guide wheel body 1702 is in lap joint with the anti-offset load guide scale plate 16, and the side of the anti-offset load guide scale plate 16 away from the guide wheel body 1702 is in sliding lap joint with the side wall of the clamping plate frame support plate 1501. A wheel position groove is provided at the position of the guide wheel body 1702 on the clamping plate frame support plate 1501;

[0047] More specifically, by setting the side of the anti-offset load guide scale plate 16 away from the guide wheel body 1702 to be in sliding lap joint with the side wall of the clamping plate frame support plate 1501, the guide wheel body 1702 can be used as an eccentric device. The guide wheel body 1702 closely adheres to the surface of the anti-offset load guide scale plate 16. When the main slider plate 5 moves up and down, the generation of gaps can be avoided, ensuring the running speed and stability.

[0048] Working principle: When making a depth adjustment of the slider structure composed of the main slider plate 5 and the depth extension slider plate 9, it is driven by the extension cylinder 7, so that the extension cylinder 7 drives its output end to push the second reinforcing rib frame 8, and then drives the depth extension slider plate 9 to extend and expand or contract and adjust below the main slider plate 5, so that the slider structure composed of the main slider plate 5 and the depth extension slider plate 9 occupies the depth to achieve the adjustment;

[0049] When the main slider plate 5 and the depth extension slider plate 9 are extended, expanded, contracted, or adjusted, the settings of the second stiffening rib frame 8 and the first stiffening rib frame 6 ensure the stress resistance quality and stability of the main slider plate 5 and the depth extension slider plate 9; and the automatic adjustment range of the rear stop position can be further expanded after the adjustment of the partial structure of the slider plate, increasing the automatic adjustment range of the rear stop structure.

[0050] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A bending machine device with an automatically adjustable rear stopper position, comprising a bending machine frame (1), characterized in that: A support frame (2) is welded and fixed on the front side of the bottom of the bending machine frame (1), a workpiece mold (3) is installed on the top of the support frame (2), a main bending cylinder (4) is fixedly installed on the top of the front side of the bending machine frame (1), a main slider plate (5) is installed at the bottom output end of the main bending cylinder (4), a first reinforcing rib frame (6) is installed at the bottom of the front side and the bottom of the back side of the main slider plate (5), an expansion cylinder (7) is fixedly installed on the surface of the first reinforcing rib frame (6), a second reinforcing rib frame (8) is fixedly installed at the bottom output end of the expansion cylinder (7), a depth expansion slider plate (9) is fixedly installed on the surface of the second reinforcing rib frame (8), and a bending tool part (10) is fixedly connected to the bottom of the depth expansion slider plate (9).

2. A bending machine with automatically adjustable rear stopper position according to claim 1, characterized in that: The bending machine frame (1) comprises a side plate frame (101), a cylinder loading plate frame (102) and a crossbeam top frame (103), the number of the side plate frame (101) and the number of the cylinder loading plate frame (102) are both two, and the two cylinder loading plate frames (102) are respectively fixedly welded to the top ends of the front sides of the two side plate frames (101), and the crossbeam top frame (103) is fixedly welded to the top ends of the opposite sides of the two side plate frames (101); the support frame (2) comprises a support frame body (201) and a workpiece mold loading slot frame (202), the workpiece mold loading slot frame (202) is welded and fixed to the top of the support frame body (201), and the workpiece mold (3) is assembled inside the support frame body (201).

3. The bending machine equipment with automatically adjustable rear stopper position according to claim 2, characterized in that: The bending master cylinder (4) comprises a bending master cylinder body (401) and a master cylinder piston (402); the output of the master cylinder piston (402) is connected to the bottom of the bending master cylinder body (401); the bending master cylinder body (401) is mounted on the front side of the cylinder loading plate frame (102); the bottom end of the master cylinder piston (402) is connected to the main slider plate (5); a longitudinal guide rail sleeve (18) is fixedly installed on one side of the bending master cylinder body (401) close to the main slider plate (5); longitudinal guide rails (19) are fixedly installed on the upper sides of both sides of the main slider plate (5); and the longitudinal guide rails (19) are longitudinally slidably connected in the longitudinal guide rail sleeve (18).

4. The bending machine equipment with automatically adjustable rear stopper position according to claim 1, characterized in that: The first reinforcing rib frame (6) comprises a first reinforcing transverse rib plate (601), a first assembly bolt (602), a reinforcing railing (603) and a connecting carrier plate (604); the first reinforcing transverse rib plate (601) is assembled and fixed to the main slider plate (5) by means of the first assembly bolt (602); the reinforcing railing (603) is welded and fixed to a surface of the first reinforcing transverse rib plate (601) away from the main slider plate (5); and the connecting carrier plate (604) is welded and fixed to a side surface of the reinforcing railing (603) away from the first reinforcing transverse rib plate (601).

5. The bending machine equipment with automatically adjustable rear stopper position according to claim 4, characterized in that: The expansion cylinder (7) comprises an expansion cylinder body (701) and an expansion cylinder piston (702), wherein the output of the expansion cylinder piston (702) is connected to the bottom of the expansion cylinder body (701), and the expansion cylinder body (701) is fixedly mounted on the surface of the connecting carrier plate (604).

6. The bending machine equipment with automatically adjustable rear gauge position according to claim 5, characterized in that: The second reinforcing rib frame (8) comprises a second reinforcing transverse rib plate (801), a second assembly thread (802), a reinforcing transverse load plate (803) and a reinforcing angle plate (804); the second reinforcing transverse rib plate (801) is assembled and fixed to the front side and the back side of the depth expansion slider plate (9) through the second assembly thread (802); the reinforcing transverse load plate (803) and the reinforcing angle plate (804) are fixedly welded to the side surface of the second reinforcing transverse rib plate (801) away from the depth expansion slider plate (9); the reinforcing angle plate (804) is fixedly welded to the top and bottom surfaces of the reinforcing transverse load plate (803); and the bottom end of the expansion cylinder piston (702) is fixedly connected to the top surface of the reinforcing transverse load plate (803).

7. The bending machine equipment with automatically adjustable rear gauge position according to claim 1, characterized in that: The bending tool part (10) comprises a bending tool loading slot frame (1001) and a bending tool body (1002), wherein the bending tool body (1002) is mounted at the bottom of the bending tool loading slot frame (1001), and the bending tool loading slot frame (1001) is fixedly welded to the bottom end of the depth expansion slider plate (9).

8. The bending machine equipment with automatically adjustable rear stopper position according to claim 3, characterized in that: A guide rail groove cavity (11) and a guide rail top circular arc groove (12) are provided through the top corner of the main slider plate (5); the guide rail top circular arc groove (12) is connected and arranged at the top of the guide rail groove cavity (11); an arc guide rail (13) and a guide rail bolt (14) are provided at the bottom of the main oil cylinder piston (402); the arc guide rail (13) passes through the top wall of the main slider plate (5) and the groove wall of the guide rail top circular arc groove (12); and the arc guide rail (13) and the guide rail bolt (14) are fixed to the main oil cylinder piston (402) and the main slider plate (5) in the guide rail groove cavity (11) and the guide rail top circular arc groove (12).

9. The bending machine equipment with automatically adjustable rear gauge position according to claim 1, characterized in that: The bottom of the back surface of the main oil cylinder piston (402) is fixedly equipped with an anti-eccentric load guide rail ruler (16), and the back side corner of the main slider plate (5) is fixedly installed with a clamping plate frame mechanism (15), and the surface of the clamping plate frame mechanism (15) and the main slider plate (5) are installed with a guide wheel mechanism (17), and the side surface of the anti-eccentric load guide rail ruler (16) is slidably overlapped with the surface of the guide wheel mechanism (17) and the inner wall of the clamping plate frame mechanism (15).

10. A bending machine with automatically adjustable rear gauge position according to claim 9, characterized in that: The clamping plate frame mechanism (15) comprises a clamping plate frame support plate (1501) and a clamping plate frame panel (1502), wherein the clamping plate frame panel (1502) is assembled and fixed to the clamping plate frame support plate (1501) by bolts, and the clamping plate frame support plate (1501) is fixedly welded to the back of the main slider plate (5); the guide wheel mechanism (17) comprises a guide wheel shaft (1701) and a guide wheel body (1702), wherein the guide wheel body (1702) is rotatably sleeved on the guide wheel shaft The surface of the guide wheel shaft (1701), the end of the guide wheel shaft (1701) is fixedly connected to the clamping plate frame panel (1502) and the main slider plate (5), and the guide wheel body (1702) is overlapped with the anti-eccentric load guide rail ruler plate (16), and the side of the anti-eccentric load guide rail ruler plate (16) away from the guide wheel body (1702) is slidably overlapped with the side wall of the clamping plate frame support plate (1501), and the clamping plate frame support plate (1501) is provided with a wheel body position groove at the guide wheel body (1702).

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