Pneumatic plate lifting device of bending machine

Abstract

The utility model discloses a bender sheet pneumatic lifting device, which relates to the bender technical field, and comprises a support assembly arranged in the middle of the inner side of a workbench vertical plate, a lifting assembly is arranged on one side of the support assembly far away from the workbench vertical plate, the lifting assembly is used for realizing the lifting operation of the sheet, and the support assembly is connected with the workbench vertical plate. The support assembly is used for providing installation support between the lifting assembly and the workbench vertical plate. The lifting assembly is further provided with a buffering assembly, and the buffering assembly is used for reducing rigid collision between the plate and the lifting assembly and between the lifting assembly and the support assembly during lifting operation. A plate is supported at a deformation part in a lifting mode, so that the plate can resist the gravity borne by a suspended part of the plate, the height of the device can be adjusted in the vertical direction, it is guaranteed that a bending point, a supporting point and a positioning point of the plate are located on the same plane, the problem that the middle of a long plate is sunken when the long plate is bent is greatly solved, and the bending quality of the long plate is improved. And the bending precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, specifically to a pneumatic lifting device for sheet metal in a bending machine. Background Technology

[0002] A bending machine is a machine that can bend thin plates. Its function is to press steel plates into parts of various shapes according to process requirements.

[0003] When a bending machine is used with sheet metal that has a deep throat, there will be a long gap between the sheet metal and the back gauge positioning finger. This results in too much of the sheet metal being suspended in the air. If the sheet metal has poor rigidity, the middle part of the sheet metal will be concave, causing the theoretical bending position to deviate from the actual bending position. As a result, the bending accuracy of the finished sheet metal is poor. Based on this, a pneumatic sheet metal lifting device for bending machines is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a pneumatic lifting device for sheet metal in a bending machine in order to solve the problems mentioned above.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pneumatic lifting device for sheet metal of a bending machine, including a bracket assembly installed in the center of the inner side of the workbench upright plate, a lifting component provided on the side of the bracket assembly away from the workbench upright plate, the lifting component being used to perform the lifting operation of the sheet metal, and the bracket assembly being used to provide installation support between the lifting component and the workbench upright plate.

[0006] The lifting assembly is also equipped with a buffer assembly, which is used to reduce hard collisions between the sheet metal and the lifting assembly, as well as between the lifting assembly and the support assembly during lifting and lowering.

[0007] As a further embodiment of this utility model: the bracket assembly includes a shim block, a guide rail mounting plate, and a cylinder mounting plate;

[0008] The shim blocks are vertically and symmetrically fixed to the side of the guide rail mounting plate. The guide rail mounting plate is fixed to the center of the inner side of the workbench upright plate by bolts, and the shim blocks are attached to the inner side of the workbench upright plate.

[0009] The cylinder mounting plate is fixed to the upper middle part of the side of the shim block away from the workbench upright plate by bolts.

[0010] As a further embodiment of this utility model: the lifting assembly includes a guide rail, a slider, a rear material support bracket, a material support top plate, and a cylinder;

[0011] The guide rail is symmetrically fixed horizontally to the side of the guide rail mounting plate away from the worktable upright plate. The slider is slidably connected to the outside of the guide rail. The rear material support bracket is fixed to one side of the slider by bolts. The guide rail and the slider cooperate to provide guidance and limit for the lifting and lowering of the rear material support bracket.

[0012] The material support top plate is fixed to the top of the rear material support bracket, the cylinder is installed at the bottom of the cylinder mounting plate, and the output end of the cylinder passes through the cylinder mounting plate and is fixedly connected to the bottom of the material support top plate. The cylinder is used to realize the lifting and lowering operation of the rear material support bracket and the material support top plate, and the material support top plate is used to provide lifting support for the suspended part of the plate.

[0013] As a further embodiment of this utility model: the buffer assembly includes a brush plate, a limiting rod, and a buffer rubber ring;

[0014] The brush plate is fixed to the upper surface of the material support plate with screws to reduce hard collisions between the material and the material support plate.

[0015] The limiting rod is fixed to the upper end of the cylinder mounting plate. The buffer rubber ring is vertically slidably connected to the inner side of the buffer rubber ring and passes through the upper and lower ends of the cylinder mounting plate. The top of the buffer rubber ring is fixedly connected to the bottom of the material support plate. The limiting rod is used to provide buffering and limiting for the downward movement of the material support plate.

[0016] As a further improvement of this utility model: the limiting rod and the cylinder output shaft are horizontally aligned along the horizontal longitudinal direction, and the cylinder mounting plate is provided with a limiting hole groove through which the cylinder output shaft and the limiting rod pass.

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

[0018] By using a lifting method to support the sheet metal at the deformation points, the sheet metal can resist the gravity of its suspended parts. In addition, the height of the device can be adjusted in the vertical direction to ensure that the bending point, support point and positioning point of the sheet metal are on the same plane, which greatly improves the problem of the middle concavity that occurs when bending long plates and improves the bending accuracy. Attached Figure Description

[0019] Figure 1 This is a front view schematic diagram of the lifting component of this utility model installed on the upright plate of the workbench;

[0020] Figure 2 This is a rear-view structural diagram of the lifting component of this utility model installed on the upright plate of the workbench.

[0021] Figure 3 This is a structural distribution diagram of the support assembly, lifting assembly, and buffer assembly of this utility model;

[0022] Figure 4 This is another perspective view of the support assembly, lifting assembly, and buffer assembly of this utility model;

[0023] Figure 5 This is a diagram showing the location distribution of the sheet metal bending points, sheet metal support points, and sheet metal positioning points of this utility model.

[0024] In the diagram: 1. Support assembly; 101. Elevating block; 102. Guide rail mounting plate; 103. Cylinder mounting plate; 2. Lifting assembly; 201. Guide rail; 202. Slider; 203. Rear material support bracket; 204. Material support top plate; 205. Cylinder; 3. Buffer assembly; 301. Brush plate; 302. Limiting rod; 303. Buffer rubber ring; 4. Sheet material; 5. Workbench upright plate; 6. Sheet material bending point; 7. Sheet material support point; 8. Sheet material positioning point. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0026] Please see Figures 1-5 In this embodiment of the utility model, the pneumatic lifting device for sheet metal of the bending machine includes a bracket assembly 1 installed in the center of the inner side of the workbench upright plate 5. A lifting assembly 2 is provided on the side of the bracket assembly 1 away from the workbench upright plate 5. The lifting assembly 2 is used to lift the sheet metal 4. The bracket assembly 1 is used to provide installation support between the lifting assembly 2 and the workbench upright plate 5.

[0027] The lifting assembly 2 is also equipped with a buffer assembly 3, which is used to reduce the hard collision between the plate 4 and the lifting assembly 2, as well as between the lifting assembly 2 and the support assembly 1 during the lifting and lowering process.

[0028] The bracket assembly 1 includes a shim block 101, a guide rail mounting plate 102, and a cylinder mounting plate 103;

[0029] The shim block 101 is vertically and symmetrically fixed to the side of the guide rail mounting plate 102. The guide rail mounting plate 102 is fixed to the center of the inner side of the workbench upright plate 5 by bolts, and the shim block 101 is attached to the inner side of the workbench upright plate 5.

[0030] The cylinder mounting plate 103 is fixed to the upper middle part of the side of the shim block 101 away from the workbench upright plate 5 by bolts;

[0031] The lifting assembly 2 includes a guide rail 201, a slider 202, a rear material support bracket 203, a material support top plate 204, and a cylinder 205;

[0032] The guide rail 201 is symmetrically fixed to the side of the guide rail mounting plate 102 away from the worktable upright plate 5 in the horizontal direction. The slider 202 is slidably connected to the outside of the guide rail 201. The rear material support bracket 203 is fixed to one side of the slider 202 by bolts. The guide rail 201 and the slider 202 cooperate to provide guidance and limit for the lifting and lowering of the rear material support bracket 203.

[0033] The top plate 204 is fixed to the top of the rear support bracket 203. The cylinder 205 is installed at the bottom of the cylinder mounting plate 103, and the output end of the cylinder 205 passes through the cylinder mounting plate 103 and is fixedly connected to the bottom of the top plate 204. The cylinder 205 is used to realize the lifting operation of the rear support bracket 203 and the top plate 204. The top plate 204 is used to provide support for the suspended part of the plate 4.

[0034] The buffer assembly 3 includes a brush plate 301, a limiting rod 302, and a buffer rubber ring 303;

[0035] The brush plate 301 is fixed to the upper surface of the material support plate 204 by screws to reduce hard collisions between the plate 4 and the material support plate 204.

[0036] The limiting rod 302 is fixed to the upper end of the cylinder mounting plate 103. The buffer rubber ring 303 is vertically slidably connected to the inner side of the buffer rubber ring 303 and passes through the upper and lower ends of the cylinder mounting plate 103. The top of the buffer rubber ring 303 is fixedly connected to the bottom of the material support plate 204. The limiting rod 302 is used to provide buffering and limiting for the downward movement of the material support plate 204.

[0037] In this embodiment: the installation and operation of this pneumatic sheet metal lifting device are as follows:

[0038] The guide rail mounting plate 102 is fixed in the center of the inner side of the workbench upright plate 5. The shim block 101 is installed on the guide rail mounting plate 102, mainly for the pneumatic lifting device of the plate material to avoid the front and rear directions of the wider workbench.

[0039] The guide rail 201 is installed parallel to both sides of the guide rail fixing plate 102. The rear material support bracket 203 is installed and adjusted through the slider 202 on the guide rail 201. Then, the cylinder mounting plate 103 is connected to the cylinder 204. After that, the cylinder mounting plate 103 is connected to the guide rail fixing plate 102. The top end of the output shaft of the cylinder 204 is fixedly connected to the material support top plate 204 on the top of the rear material support bracket 203. Then, the buffer pad 303 is installed on the top of the cylinder mounting plate 103. Then, the limit rod 302 passes through the cylinder mounting plate 103 and the buffer pad 303 and is fixedly connected to the material support top plate 204 to ensure that the position of the material support top plate 204 is accurate when it reaches the predetermined position. Finally, the brush plate 301 is fixed to the top of the material support top plate 204. In this way, when the plate 5 comes into contact with the material support top plate 204, the hard collision and friction between the plate 5 and the material support top plate 204 can be reduced.

[0040] By activating cylinder 206, the height of the material support plate 204 can be adjusted vertically to ensure that the three points—bending point 6 (i.e., the contact point between the sheet metal 5 and the bending die on the worktable), support point 7 (i.e., the contact point between the sheet metal 5 and the brush plate 301), and positioning point 8 (i.e., the contact point between the sheet metal 5 and the positioning structure on the rear side of the bending machine)—are on the same plane (e.g., ...). Figure 5 This greatly improves the problem of central depression that occurs when bending long boards and enhances bending accuracy.

[0041] Please refer to this carefully. Figures 1-4 The limiting rod 302 and the output shaft of the cylinder 205 are horizontally aligned along the horizontal longitudinal direction. The cylinder mounting plate 103 is provided with a limiting hole groove through which the output shaft of the cylinder 205 and the limiting rod 302 pass.

[0042] In this embodiment, the cooperation between the limiting rod 302 and the buffer rubber ring 303 can provide auxiliary limiting and support for the overall up and down movement of the rear unloading frame 203 and the material support top plate 204, making the lifting and lowering operation of the unloading frame 203 and the material support top plate 204 more stable.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pneumatic lifting device for sheet metal in a bending machine, characterized in that, Includes a bracket assembly (1) installed in the center of the inner side of the workbench upright plate (5), and a lifting assembly (2) is provided on the side of the bracket assembly (1) away from the workbench upright plate (5). The lifting assembly (2) is used to lift the plate (4), and the bracket assembly (1) is used to provide installation support between the lifting assembly (2) and the workbench upright plate (5). The lifting assembly (2) is also provided with a buffer assembly (3), which is used to reduce the hard collision between the plate (4) and the lifting assembly (2) and the support assembly (1) during the lifting and lowering operation of the lifting assembly (2).

2. The pneumatic lifting device for sheet metal of a bending machine according to claim 1, characterized in that, The bracket assembly (1) includes a shim block (101), a guide rail mounting plate (102), and a cylinder mounting plate (103). The shim block (101) is vertically and symmetrically fixed to the side of the guide rail mounting plate (102). The guide rail mounting plate (102) is fixed to the center of the inner side of the workbench upright plate (5) by bolts, and the shim block (101) is attached to the inner side of the workbench upright plate (5). The cylinder mounting plate (103) is fixed to the upper middle part of the side of the raised block (101) away from the workbench upright plate (5) by bolts.

3. The pneumatic lifting device for sheet metal in a bending machine according to claim 2, characterized in that, The lifting assembly (2) includes a guide rail (201), a slider (202), a rear material support bracket (203), a material support top plate (204), and a cylinder (205). The guide rail (201) is symmetrically fixed in the horizontal direction on the side of the guide rail mounting plate (102) away from the worktable upright plate (5). The slider (202) is slidably connected to the outside of the guide rail (201). The rear material support bracket (203) is fixed to one side of the slider (202) by bolts. The guide rail (201) and the slider (202) cooperate to provide guidance and limit for the lifting and lowering of the rear material support bracket (203). The top plate (204) is fixed to the top of the rear support bracket (203). The cylinder (205) is installed at the bottom of the cylinder mounting plate (103). The output end of the cylinder (205) passes through the cylinder mounting plate (103) and is fixedly connected to the bottom of the top plate (204). The cylinder (205) is used to realize the lifting operation of the rear support bracket (203) and the top plate (204). The top plate (204) is used to provide support for the suspended part of the plate (4).

4. The pneumatic lifting device for sheet metal in a bending machine according to claim 3, characterized in that, The buffer assembly (3) includes a brush plate (301), a limiting rod (302), and a buffer rubber ring (303). The brush plate (301) is fixed to the upper surface of the material support plate (204) by screws to reduce hard collision between the plate (4) and the material support plate (204); The limiting rod (302) is fixed to the upper end of the cylinder mounting plate (103). The buffer rubber ring (303) is vertically slidably connected to the inner side of the buffer rubber ring (303) and passes through the upper and lower ends of the cylinder mounting plate (103). The top of the buffer rubber ring (303) is fixedly connected to the bottom of the material support plate (204). The limiting rod (302) is used to provide buffering and limiting for the downward movement of the material support plate (204).

5. The pneumatic lifting device for sheet metal in a bending machine according to claim 4, characterized in that, The limiting rod (302) and the output shaft of the cylinder (205) are horizontally aligned along the horizontal longitudinal direction. The cylinder mounting plate (103) is provided with a limiting hole groove through which the output shaft of the cylinder (205) and the limiting rod (302) pass.

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