Improved rear material blocking device for bending machine
By employing a servo motor-driven ball screw and nut mechanism on the bending machine, the combined movement of the sliding seat and the lifting plate is achieved, solving the problems of poor positioning accuracy and cumbersome operation of the traditional back gauge device, and improving the working efficiency and adaptability of the bending machine.
Patent Information
- Application Number
- CN202520312562.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Traditional back gauge devices have poor positioning accuracy and are cumbersome to operate during sheet metal forming, resulting in low working efficiency of bending machines and making them unsuitable for bending workpieces of different sizes and specifications.
The ball screw and nut mechanism driven by a servo motor achieves precise positioning and multi-directional adjustment of the workpiece through the combined movement of the sliding seat and the lifting plate, adapting to the bending requirements of workpieces of different shapes and sizes.
It improves the working efficiency of bending machines, simplifies the operation process, is highly adaptable, and can quickly handle bending tasks of workpieces of different sizes and specifications.
Smart Images

Figure CN223789255U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of back gauge technology for bending machines, and in particular relates to an improved back gauge device for bending machines. Background Technology
[0002] A bending machine is a machine capable of bending thin plates. Its main structure includes a support frame, a worktable, and a clamping plate. The worktable is placed on the support frame and consists of a base and a pressure plate. The base is connected to the clamping plate via a hinge. The base consists of a housing, a coil, and a cover plate. The coil is placed in a recess in the housing, and the top of the recess is covered by the cover plate. During operation, the coil is energized by a wire. After energization, it generates an attractive force on the pressure plate, thereby clamping the thin plate between the pressure plate and the base.
[0003] One of the mechanical auxiliary devices frequently used on bending machines is the back gauge device. Traditional back gauge devices have poor positioning accuracy, are cumbersome to operate, and are inconvenient to use during sheet metal forming. This results in poor work efficiency for bending machines during the bending process, and takes a long time to bend workpieces of different sizes and specifications, which is not conducive to production. Therefore, an improved back gauge device for bending machines is proposed. Summary of the Invention
[0004] The purpose of this utility model is to provide an improved back gauge device for bending machines to solve existing problems.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to an improved back gauge device for a bending machine, comprising a mounting plate. Two sets of first slide rails are symmetrically arranged on the upper surface of the mounting plate. Two sets of sliding seats are slidably connected to the upper surface of the first slide rails. A mounting frame is provided on the left side of the upper surface of the mounting plate. A first servo motor is provided on one side of the mounting frame. The output end of the first servo motor passes through one side of the mounting frame and extends into the mounting frame. A coupling is provided at the output end of the first servo motor. A stop block is provided on the right side of the upper surface of the mounting plate. A first ball screw is rotatably connected to one side of the stop block. A first screw nut is inserted through the circumference of the first ball screw. A base is provided on the upper surface of the sliding seats and the first screw nut. Side plates are symmetrically arranged on the upper surface of the base. A vertical plate is provided between the two sets of side plates. A sliding groove is symmetrically arranged on one side of the plate, a connecting groove is opened on one side of the upright plate, a fixing plate is arranged on the rear side of the upright plate, an extension plate is arranged on the front side of the upright plate, a mounting seat is arranged on the upper surface of the extension plate, a second ball screw is inserted in the mounting seat, a slider is slidably connected in the sliding groove, a lifting plate is arranged on one side of the slider, a second screw nut is arranged on the front side of the lifting plate, a crossbeam is arranged on the upper surface of the lifting plate, a power belt and a second slide rail are respectively arranged on the upper surface of the crossbeam, an adjusting block is slidably connected on the upper surface of the second slide rail, a stop finger is installed on the front side of the adjusting block, a cavity is opened in the adjusting block, a pressure roller is symmetrically rotatably connected to the inner wall of the cavity, a power wheel is rotatably connected to one side of the inner wall of the cavity, and a third servo motor is arranged on one side of the adjusting block.
[0007] Furthermore, the left end of the first ball screw passes through one side of the mounting frame and is fixedly connected to the free end of the coupling. The first ball screw is threadedly engaged with the first screw nut. A second servo motor is provided on the upper surface of the fixed plate. The second servo motor passes through the fixed plate. A first connecting wheel is provided at the output end of the second servo motor. A second connecting wheel is provided at the bottom end of the second ball screw. The first connecting wheel and the second connecting wheel are connected by a chain, which is set in the connecting groove.
[0008] Furthermore, a second screw nut is inserted through the circumference of the second ball screw, and one side of the second screw nut is fixedly connected to the front side of the lifting plate. The second screw nut and the second ball screw are threaded together. One end of the power belt passes counterclockwise through the circumference of the left pressure wheel and clockwise through the circumference of the power wheel. The other end of the power belt passes counterclockwise through the circumference of the right pressure wheel. The output end of the third servo motor passes through one side of the adjusting block and is fixedly connected to one side of the power wheel.
[0009] This utility model has the following beneficial effects:
[0010] This invention utilizes a first servo motor. The rotation of the first servo motor drives a first ball screw via a coupling. The first ball screw, through a threaded nut on its circumferential side, drives a sliding seat and a base mounted on its upper surface to reciprocate. Simultaneously, a second servo motor is activated, driving a first connecting wheel. This connecting wheel, via a chain, drives a second connecting wheel, which in turn drives a second ball screw. The second ball screw, in turn, drives a threaded nut on its circumferential side to move up and down. The nut is fixedly connected to the front of a lifting plate, thus moving the lifting plate. Simultaneously, a third servo motor is activated, driving a power wheel. Since one end of the power belt passes counter-clockwise through the circumference of the left pressure wheel and clockwise through the circumference of the power wheel, and the other end passes counter-clockwise through the circumference of the right pressure wheel, the third servo motor, while driving the power wheel, can move freely along the upper surface of the crossbeam along with the adjusting block. This allows for bending of workpieces of different shapes and sizes, adapting to different working conditions and facilitating use in production.
[0011] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the overall structure of an improved back gauge device for a bending machine;
[0014] Figure 2 A schematic diagram of the overall structure of the rear side of an improved back gauge device for a bending machine;
[0015] Figure 3 Left view of an improved back gauge device for a bending machine;
[0016] Figure 4 for Figure 3 Cross-sectional view of section AA;
[0017] Figure 5 A rear view of an improved back gauge device for a bending machine;
[0018] Figure 6 for Figure 5 Cross-sectional view of section BB in the middle.
[0019] The components represented by each number in the attached diagram are listed below: 1. Mounting plate; 101. First slide rail; 102. Sliding seat; 11. Mounting frame; 110. Coupling; 111. First servo motor; 112. Stop block; 113. First ball screw; 12. Base; 120. Side plate; 121. Vertical plate; 122. Slide groove; 123. Fixing plate; 124. Second servo motor; 1240. First connecting wheel; 125. Extension plate; 126. Mounting seat; 127. Second ball screw; 1270. Second connecting wheel; 128. Connecting groove; 13. First screw nut; 2. Lifting plate; 201. Second screw nut; 202. Slider; 3. Crossbeam; 301. Second slide rail; 302. Power belt; 31. Adjusting block; 310. Cavity; 311. Pressure roller; 312. Power wheel; 313. Third servo motor. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] Please see Figure 1 - Figure 6As shown, this utility model is an improved back gauge device for a bending machine, including a mounting plate 1. Two sets of first slide rails 101 are symmetrically arranged on the upper surface of the mounting plate 1. Two sets of sliding seats 102 are slidably connected to the upper surface of the first slide rails 101. A mounting frame 11 is arranged on the left side of the upper surface of the mounting plate 1. A first servo motor 111 is arranged on one side of the mounting frame 11. The output end of the first servo motor 111 passes through one side of the mounting frame 11 and extends into the mounting frame 11. A coupling 110 is arranged at the output end of the first servo motor 111. A stop block 112 is arranged on the right side of the upper surface of the mounting plate 1. A first ball screw 113 is rotatably connected to one side of the stop block 112. A first screw nut 13 is inserted through the circumference of the first ball screw 113. A base 12 is arranged on the upper surface of the sliding seats 102 and the first screw nut 13. Side plates 120 are symmetrically arranged on the upper surface of the base 12. A vertical plate 121 is arranged between the two sets of side plates 120. A sliding groove 122 is symmetrically arranged. A connecting groove 128 is opened on one side of the upright plate 121. A fixing plate 123 is arranged on the rear side of the upright plate 121. An extension plate 125 is arranged on the front side of the upright plate 121. A mounting base 126 is arranged on the upper surface of the extension plate 125. A second ball screw 127 is inserted into the mounting base 126. A slider 202 is slidably connected in the sliding groove 122. A lifting plate 2 is arranged on one side of the slider 202. A second screw nut 201 is arranged on the front side of the lifting plate 2. A crossbeam 3 is provided on the upper surface of the lifting plate 2. A power belt 302 and a second slide rail 301 are respectively provided on the upper surface of the crossbeam 3. An adjusting block 31 is slidably connected to the upper surface of the second slide rail 301. A stop finger is installed on the front side of the adjusting block 31. A cavity 310 is opened in the adjusting block 31. A pressure roller 311 is symmetrically rotatably connected to the inner wall of the cavity 310. A power wheel 312 is rotatably connected to one side of the inner wall of the cavity 310. A third servo motor 313 is provided on one side of the adjusting block 31.
[0024] Furthermore, the left end of the first ball screw 113 passes through one side of the mounting frame 11 and is fixedly connected to the free end of the coupling 110. The first ball screw 113 is threadedly engaged with the first screw nut 13. A second servo motor 124 is provided on the upper surface of the fixing plate 123. The second servo motor 124 passes through the fixing plate 123. A first connecting wheel 1240 is provided at the output end of the second servo motor 124. A second connecting wheel 1270 is provided at the bottom end of the second ball screw 127. The first connecting wheel 1240 and the second connecting wheel 1270 are connected by a chain, which is located in the connecting groove 128.
[0025] Furthermore, a second screw nut 201 is inserted through the circumference of the second ball screw 127. One side of the second screw nut 201 is fixedly connected to the front side of the lifting plate 2, and the second screw nut 201 is threadedly engaged with the second ball screw 127.
[0026] Furthermore, one end of the power belt 302 passes counterclockwise through the side of the left pressure roller 311 and clockwise through the side of the power roller 312. The other end of the power belt 302 passes counterclockwise through the side of the right pressure roller 311. The output end of the third servo motor 313 passes through one side of the adjusting block 31 and is fixedly connected to one side of the power roller 312.
[0027] It should be noted that, in this utility model, by starting the first servo motor 111, the rotation of the first servo motor 111 drives the first ball screw 113 to rotate via the coupling 110. The first ball screw 113, through the first screw nut 13 with its circumferential thread engagement, drives the sliding seat 102 and the base 12 on its upper surface to move back and forth. Simultaneously, starting the second servo motor 124 drives the first connecting wheel 1240 to rotate. The first connecting wheel 1240, through the chain, drives the second connecting wheel 1270 to rotate. The second connecting wheel 1270 drives the second ball screw 127 to rotate. The rotation of the second ball screw 127 drives the second screw nut 201 with its circumferential thread engagement to move up and down. The second lead screw nut 201 is fixedly connected to the front side of the lifting plate 2, thereby driving the lifting plate 2 to move. At the same time, the third servo motor 313 is started to drive the power wheel 312 to rotate. Since one end of the power belt 302 passes counterclockwise through the circumference of the left pressure wheel 311 and clockwise through the circumference of the power wheel 312, and the other end of the power belt 302 passes counterclockwise through the circumference of the right pressure wheel 311, the third servo motor 313 can move freely on the upper surface of the crossbeam 3 along with the adjusting block 31 while driving the power wheel 312 to rotate. At the same time, the stop finger on one side of the adjusting block 31 can block the workpiece being processed, thereby bending workpieces of different shapes and sizes, adapting to different working conditions, and facilitating use in the production process.
[0028] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An improved back gauge device for a bending machine, comprising a mounting plate (1), characterized in that: Two sets of first slide rails (101) are symmetrically arranged on the upper surface of the mounting plate (1). Two sets of sliding seats (102) are slidably connected to the upper surface of the first slide rails (101). A mounting frame (11) is arranged on the left side of the upper surface of the mounting plate (1). A first servo motor (111) is arranged on one side of the mounting frame (11). The output end of the first servo motor (111) passes through one side of the mounting frame (11) and extends into the mounting frame (11). A coupling (110) is arranged on the output end of the first servo motor (111). The upper surface of the mounting plate (1) A stop block (112) is provided on the right side. A first ball screw (113) is rotatably connected to one side of the stop block (112). A first screw nut (13) is inserted through the periphery of the first ball screw (113). A base (12) is provided on the upper surface of the sliding seat (102) and the first screw nut (13). Side plates (120) are symmetrically arranged on the upper surface of the base (12). A vertical plate (121) is provided between the two sets of side plates (120). A sliding groove (122) is symmetrically arranged on one side of the vertical plate (121). A connecting groove (128) is provided on the surface of the upright plate (121). A fixing plate (123) is provided on the rear side of the upright plate (121). An extension plate (125) is provided on the front side of the upright plate (121). A mounting seat (126) is provided on the upper surface of the extension plate (125). A second ball screw (127) is inserted in the mounting seat (126). A slider (202) is slidably connected in the sliding groove (122). A lifting plate (2) is provided on one side of the slider (202). A second screw nut (201) is provided on the front side of the lifting plate (2). The upper surface of the lifting plate (2) is... A crossbeam (3) is provided on the surface of the crossbeam (3). A power belt (302) and a second slide rail (301) are respectively provided on the upper surface of the crossbeam (3). An adjusting block (31) is slidably connected to the upper surface of the second slide rail (301). A stop finger is installed on the front side of the adjusting block (31). A cavity (310) is opened in the adjusting block (31). A pressure roller (311) is symmetrically rotatably connected to the inner wall of the cavity (310). A power wheel (312) is rotatably connected to one side of the inner wall of the cavity (310). A third servo motor (313) is provided on one side of the adjusting block (31).
2. The improved back gauge device for a bending machine according to claim 1, characterized in that, The left end of the first ball screw (113) passes through one side of the mounting frame (11) and is fixedly connected to the free end of the coupling (110). The first ball screw (113) is threadedly engaged with the first screw nut (13).
3. The improved back gauge device for a bending machine according to claim 1, characterized in that, A second servo motor (124) is provided on the upper surface of the fixed plate (123). The second servo motor (124) passes through the fixed plate (123). A first connecting wheel (1240) is provided at the output end of the second servo motor (124). A second connecting wheel (1270) is provided at the bottom end of the second ball screw (127). The first connecting wheel (1240) and the second connecting wheel (1270) are connected by a chain. The chain is provided in the connecting groove (128).
4. The improved back gauge device for a bending machine according to claim 1, characterized in that, A second screw nut (201) is inserted through the circumference of the second ball screw (127). One side of the second screw nut (201) is fixedly connected to the front side of the lifting plate (2). The second screw nut (201) is threadedly engaged with the second ball screw (127).
5. The improved back gauge device for a bending machine according to claim 1, characterized in that, One end of the power belt (302) passes counterclockwise through the side of the left pressure wheel (311) and clockwise through the side of the power wheel (312), while the other end of the power belt (302) passes counterclockwise through the side of the right pressure wheel (311).
6. The improved back gauge device for a bending machine according to claim 5, characterized in that, The output end of the third servo motor (313) passes through one side of the adjustment block (31) and is fixedly connected to one side of the power wheel (312).