Sheet metal part bending machine

Abstract

The utility model discloses a sheet metal part bending machine, which belongs to the field of sheet metal part processing devices and comprises a base, stand columns are arranged at four corners of the bottom end of the base, a processing table is fixedly mounted at the top end of the base, a mounting frame is fixedly mounted at the top end of the base, and two bending blocks which are symmetrically distributed are slidably mounted at the top end of the processing table. Chamfers are formed in the opposite sides of the two bending blocks, and an adjusting assembly is arranged between the two bending blocks and the machining table. First air cylinders are fixedly mounted on the two sides of the mounting frame correspondingly, and piston shafts of the two first air cylinders slidably penetrate through the mounting frame. Through the arrangement of the clamping assembly, the first air cylinder drives the same set of clamping plates to move, so that the clamping plates make contact with the opposite sides of the sheet metal part, the sheet metal part can be limited and positioned, the stability of the sheet metal part during bending can be kept, and then the machining quality of products can be kept.

Description

Technical Field

[0001] The utility model relates to the field of sheet metal processing devices, and more specifically, to a sheet metal bending machine. Background Art

[0002] Sheet metal is a comprehensive cold working process for metal sheets, including shearing, punching / cutting / combining, folding, welding, riveting, splicing, forming, etc. Its remarkable feature is that the thickness of the same part is consistent. The products processed by sheet metal technology are called sheet metal parts. Generally, the sheet metal parts referred to in different industries are different, and they are mostly used for the names during assembly. One of the steps in sheet metal processing is bending treatment.

[0003] The patent with the application number 202322243238.4 discloses a sheet metal bending machine, which includes a workbench. A bracket is arranged on the workbench, a hydraulic cylinder is arranged on the bracket, a connecting seat is arranged at the output end of the hydraulic cylinder, a T-shaped block is movably installed in the connecting seat, an upper die is arranged at the bottom end of the T-shaped block, a compression spring is arranged in the T-shaped block, positioning pins are arranged at both ends of the compression spring, and the two positioning pins are respectively inserted into the connecting seat. A positioning pedestal is arranged on the workbench, a positive and negative screw rod is rotatably installed in the positioning pedestal, a crank handle is arranged at one end of the positive and negative screw rod, a first slider and a second slider are respectively threadedly connected to the positive and negative screw rods, connecting rods are rotatably installed on the first slider and the second slider, and two symmetrically arranged lower templates are rotatably installed on the positioning pedestal. The centers of the two lower templates correspond to the center of the upper die. In this utility model, through the settings of the T-shaped block, the compression spring and the positioning pins, the quick installation and disassembly of the upper die are realized, thus facilitating the replacement of the upper die.

[0004] In view of the above related technologies, through the settings of the T-shaped block, the compression spring and the positioning pins, the quick installation and disassembly of the upper die are realized, thus facilitating the replacement of the upper die. However, the device is not provided with a limiting structure. When the upper die punches the sheet metal, with the action of the upper die on the sheet metal part, the two ends of the sheet metal part will shrink, which may cause the position of the sheet metal part to shift during the stamping process, thereby affecting the bending quality of the sheet metal part. Content of the Utility Model

[0005] In order to solve the above problems, the utility model provides a sheet metal bending machine, and adopts the following technical solutions:

[0006] A sheet metal bending machine includes a base. Columns are provided at the four corners of the bottom end of the base. A processing table is fixedly installed at the top end of the base. An installation frame is fixedly installed at the top end of the base. Two symmetrically distributed bending blocks are slidably installed at the top end of the processing table. Chamfers are provided on the opposite sides of the two bending blocks. An adjusting assembly is provided between the two bending blocks and the processing table. First cylinders are fixedly installed on both sides of the installation frame. The piston shafts of the two first cylinders slidably penetrate through the installation frame. A clamping assembly is provided between the two first cylinders. A second cylinder is fixedly installed at the top end of the installation frame. The piston shaft end of the second cylinder slidably penetrates through the installation frame and is fixedly installed with a connecting block. A punching block is fixedly installed at the bottom end of the connecting block.

[0007] By adopting the above technical solution, chamfers are provided on the opposite sides of the two bending blocks, so that a "V" shape is formed between the two bending blocks, which is convenient for the subsequent bending of sheet metal parts by the equipment. When the equipment is in use, the staff can drive the two bending blocks to move synchronously through the adjusting assembly, so as to adjust the distance between the two bending blocks, which is convenient for the equipment to process products with different angles. After the distance between the two bending blocks is adjusted, the staff places the sheet metal part on the tops of the two bending blocks, and then clamps and positions the sheet metal part through the clamping assembly. Then, the second cylinder is driven to drive the connecting block and the punching block to descend synchronously, so that the bottom of the punching block contacts the top of the sheet metal part. Through the cooperation of the punching block and the two bending blocks, the function of processing and bending the sheet metal part can be achieved. When the punching block punches the sheet metal part, the clamping assembly always contacts the opposite side of the sheet metal part, which helps to prevent the sheet metal part from shifting during punching and is beneficial to maintaining the processing quality of the product.

[0008] Further, the adjusting assembly includes an installation box fixedly installed on one side of the processing table. A reduction motor is provided in the installation box. An installation groove is provided at the top end of the processing table. A double-threaded screw rod is rotatably installed in the installation groove. Support blocks are sleeved on the side walls of the two sections of the double-threaded screw rod. The top ends of the two support blocks penetrate through the installation groove and are fixedly connected to the bottom end of the same group of bending blocks. One end of the double-threaded screw rod close to the reduction motor penetrates through the processing table and extends into the installation box. The end of the double-threaded screw rod penetrating through the installation box is fixedly connected to the output shaft end of the reduction motor.

[0009] By adopting the above technical solution, the reduction motor is driven to rotate the double-threaded screw rod, so that the two support blocks slide in the installation groove, and the support blocks drive the bending blocks of the same group to move, thereby playing a role in adjusting the distance between the two bending blocks and facilitating the equipment to process products with different angles.

[0010] Further, stabilizing blocks are fixedly installed on both sides of the two support blocks. Stabilizing grooves matching the stabilizing blocks on the same side are provided on the inner wall of the installation groove.

[0011] By adopting the above technical solution, when the double-screw drives the two support blocks to move, the support blocks drive the same-group stabilizing blocks to slide in the stabilizing grooves on the same side. Through the cooperation of the stabilizing blocks and the stabilizing grooves, it is beneficial to maintain the stability of the movement of the support blocks.

[0012] Further, two symmetrically distributed grooves are formed at the top end of the processing table. Slide rods are fixedly installed in both of the two grooves. Two symmetrically distributed sliders are slidably sleeved on the side walls of both of the two slide rods. The tops of the two sliders in the same group are fixedly connected to the bottom ends of the bending blocks on the same side.

[0013] By adopting the above technical solution, when the support blocks drive the bending blocks in the same group to move on the top of the processing table, the bending blocks drive the sliders in the same group to slide on the slide rods installed in the grooves on the same side. Through the cooperation of the sliders and the slide rods, the bending blocks can be supported and stabilized, and it is beneficial to maintain the stability of the sliding of the bending blocks.

[0014] Further, the clamping assembly includes clamping plates arranged at the opposite ends of the piston shafts of two first cylinders. Rubber pads are fixedly installed on the opposite sides of the two clamping plates. Pillars are fixedly installed at the ends of the piston shafts of the two first cylinders. Activity grooves are formed on the opposite sides of the two pillars. Support rods are slidably installed in both of the two activity grooves. Spring are fixedly connected between the opposite sides of the two support rods and the inner walls of the activity grooves on the same side opposite to the support rods. The opposite ends of the two support rods are fixedly connected to the opposite sides of the clamping plates in the same group.

[0015] By adopting the above technical solution, after the staff places the sheet metal part on the tops of the two bending blocks, the first cylinders drive the pillars, support rods and clamping plates in the same group to move synchronously, so that the opposite sides of the two clamping plates contact the sheet metal part, which can play a role in clamping and stabilizing the sheet metal part, is beneficial to maintaining the stability during the processing of the sheet metal part, and can play a role in correcting the position of the sheet metal part. When the opposite sides of the clamping plates contact the sheet metal part, the clamping plates drive the support rods in the same group to slide in the activity grooves under the driving force of the first cylinders in the same group, and the support rods push the springs in the same group to contract, which can play a buffering role. When the punching block punches the sheet metal part, the two sides of the sheet metal will contract. The support rods push the clamping plates to always contact the opposite sides of the sheet metal part under the elastic force of the springs in the same group, which can play a role in stabilizing the sheet metal part and help to prevent the sheet metal part from shifting during punching.

[0016] Further, two symmetrically distributed limiting blocks are fixedly installed on the side walls of the opposite ends of the two support rods, and limiting grooves matching the limiting blocks in the same group are formed on the inner walls of the activity grooves.

[0017] By adopting the above technical solution, when the support rod slides in the movable groove, the support rod slides in the limiting groove on the same side with the same group of limiting blocks. The cooperation between the limiting blocks and the limiting grooves helps to prevent the support rod from leaving the movable groove and helps to maintain the stability of the sliding of the support rod.

[0018] Furthermore, support plates are fixedly installed on the top ends of the two clamping plates, balance bars are fixedly installed on the opposite sides of the two support plates, and opposite ends of the two balance bars slide through the mounting frame.

[0019] By adopting the above technical solution, when the first cylinder drives the same group of clamps to move, the clamps move with the same group of support plates and balance rods, and one end of the balance rod slides through the mounting frame. The cooperation between the balance rod and the mounting frame is conducive to maintaining the stability of the clamp movement.

[0020] In summary, the utility model includes the following beneficial technical effects:

[0021] (1) In the present invention, by setting up the clamping assembly, the first cylinder drives the same group of clamps to move so that the clamps contact the opposite side of the sheet metal part, which can play a role in limiting and positioning the sheet metal part, which is beneficial to maintaining the stability of the sheet metal part during bending, and further beneficial to maintaining the processing quality of the product.

[0022] (2) In the utility model, the splint and the first cylinder piston shaft of the same group can play a buffering role through the setting of pillars, support rods and springs. When the sheet metal is bent and contracted, the splint is always in contact with the opposite side of the sheet metal under the push of the elastic force of the spring, which is beneficial to maintain the limiting effect of the equipment and further to maintain the processing quality of the product.

[0023] (3) In the present invention, since chamfers are provided on opposite sides of the two bending blocks, a "V" shape is formed between the two bending blocks, which is convenient for the subsequent bending of sheet metal parts by the equipment. By adjusting the setting of the adjustment component, the distance between the two bending blocks can be adjusted, thereby facilitating the subsequent processing of sheet metal parts with different angles by the equipment, which is beneficial to improving the processing range of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a sheet metal bending machine;

[0025] Figure 2 For this utility model Figure 1 A magnified view of middle;

[0026] Figure 3 It is a cross-sectional view of the utility model;

[0027] Figure 4 For this utility model Figure 3 Enlarged view of middle B;

[0028] Figure 5 This is an exploded view of the adjustment component in the present utility model.

[0029] Explanation of reference numerals in the figure:

[0030] 1. Base; 2. Processing table; 3. Groove; 4. Installation box; 5. Installation slot; 6. First cylinder; 7. Balance rod; 8. Support pillar; 9. Support rod; 10. Support plate; 11. Installation frame; 12. Second cylinder; 13. Connection block; 14. Stamping block; 15. Clamping plate; 16. Bending block; 17. Slide rod; 18. Slide block; 19. Support block; 20. Double-threaded screw rod; 21. Reduction motor; 22. Activity slot; 23. Spring. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] The following is a further detailed description of the present utility model in conjunction with the attached Figures 1-5 For the present utility model.

[0035] Please refer to Figures 1-5, a sheet metal bending machine, comprising a base 1. Columns are provided at the four corners of the bottom end of the base 1. A processing table 2 is fixedly installed at the top end of the base 1. An installation frame 11 is fixedly installed at the top end of the base 1. Two symmetrically distributed bending blocks 16 are slidably installed at the top end of the processing table 2. Chamfers are provided on the opposite sides of the two bending blocks 16. An adjusting component is provided between the two bending blocks 16 and the processing table 2. The adjusting component includes an installation box 4 fixedly installed on one side of the processing table 2. A reduction motor 21 is provided inside the installation box 4. An installation groove 5 is opened at the top end of the processing table 2. A double-threaded screw rod 20 is rotatably installed in the installation groove 5. Support blocks 19 are sleeved on the side walls of both sections of the double-threaded screw rod 20. The top ends of the two support blocks 19 penetrate through the installation groove 5 and are fixedly connected to the bottom end of the same group of bending blocks 16. One end of the double-threaded screw rod 20 close to the reduction motor 21 penetrates through the processing table 2 and extends into the installation box 4. The end of the double-threaded screw rod 20 penetrating through the installation box 4 is fixedly connected to the end of the output shaft of the reduction motor 21.

[0036] When the device is in use, the reduction motor 21 can be used to drive the double-threaded screw rod 20 to rotate, so that the two support blocks 19 slide in the installation groove 5, and the support blocks 19 drive the bending blocks 16 of the same group to move, thereby playing a role in adjusting the distance between the two bending blocks 16, facilitating the device to process products at different angles. Stabilizing blocks are fixedly installed on both sides of the two support blocks 19. Stabilizing grooves matching the stabilizing blocks on the same side are opened on the inner wall of the installation groove 5. When the double-threaded screw rod 20 drives the two support blocks 19 to move, the support blocks 19 drive the stabilizing blocks of the same group to slide in the stabilizing grooves on the same side. Through the cooperation of the stabilizing blocks and the stabilizing grooves, it is beneficial to maintain the stability of the movement of the support blocks 19.

[0037] Two symmetrically distributed grooves 3 are opened at the top end of the processing table 2. Slide rods 17 are fixedly installed in the two grooves 3. Two symmetrically distributed sliders 18 are slidably sleeved on the side walls of the two slide rods 17. The top ends of the two sliders 18 in the same group are fixedly connected to the bottom end of the bending block 16 on the same side. When the support block 19 drives the bending block 16 of the same group to move on the top of the processing table 2, the bending block 16 drives the sliders 18 of the same group to slide on the slide rods 17 installed in the grooves 3 on the same side. Through the cooperation of the sliders 18 and the slide rods 17, the bending block 16 can be supported and stabilized, and it is beneficial to maintain the stability of the sliding of the bending block 16.

[0038] On both sides of the mounting bracket 11, first cylinders 6 are fixedly installed, and the piston shafts of the two first cylinders 6 slidably penetrate through the mounting bracket 11. A clamping assembly is arranged between the two first cylinders 6. The clamping assembly includes clamping plates 15 arranged at the opposite ends of the piston shafts of the two first cylinders 6. Rubber pads are fixedly installed on the opposite sides of the two clamping plates 15. Pillars 8 are fixedly installed at the ends of the piston shafts of the two first cylinders 6. Moving grooves 22 are formed on the opposite sides of the two pillars 8. Support rods 9 are slidably installed in the two moving grooves 22. Spring 23 is fixedly connected between the opposite sides of the two support rods 9 and the inner wall of the moving groove 22 of the same group. The opposite ends of the two support rods 9 are fixedly connected to the opposite sides of the clamping plate 15 of the same group.

[0039] After the distance between the two bending blocks 16 is adjusted, the staff places the sheet metal part on the tops of the two bending blocks 16. Subsequently, the first cylinder 6 drives the pillars 8, support rods 9, and clamping plates 15 of the same group to move synchronously, so that the opposite sides of the two clamping plates 15 contact the sheet metal part, which can play a role in firmly clamping the sheet metal part, is beneficial to maintaining the stability of the sheet metal part during processing, and can also play a role in correcting the position of the sheet metal part. When the opposite side of the clamping plate 15 contacts the sheet metal part, the clamping plate 15 drives the support rod 9 of the same group to slide in the moving groove 22 under the driving force of the first cylinder 6 of the same group, and the support rod 9 pushes the spring 23 of the same group to contract, which can play a buffering role. When the punching block 14 punches the sheet metal part, the two sides of the sheet metal will shrink. The support rod 9 pushes the clamping plate 15 to always contact the opposite side of the sheet metal part under the elastic force of the spring 23 of the same group, which can play a role in stabilizing the sheet metal part and help avoid the sheet metal part from shifting during punching.

[0040] On the side walls of the opposite ends of the two support rods 9, two symmetrically distributed limit blocks are fixedly installed. Limit grooves matching the limit blocks of the same group are formed on the inner wall of the moving groove 22. When the support rod 9 slides in the moving groove 22, the support rod 9 drives the limit block of the same group to slide in the limit groove on the same side. Through the cooperation of the limit block and the limit groove, it helps to prevent the support rod 9 from detaching from the moving groove 22 and is beneficial to maintaining the stability of the sliding of the support rod 9.

[0041] Support plates 10 are fixedly installed at the tops of the two clamping plates 15. Balance rods 7 are fixedly installed on the opposite sides of the two support plates 10. The opposite ends of the two balance rods 7 slidably penetrate through the mounting bracket 11. When the first cylinder 6 drives the clamping plate 15 of the same group to move, the clamping plate 15 drives the support plate 10 and the balance rod 7 of the same group to move, and one end of the balance rod 7 slidably penetrates through the mounting bracket 11. Through the cooperation of the balance rod 7 and the mounting bracket 11, it is beneficial to maintaining the stability of the movement of the clamping plate 15.

[0042] A second cylinder 12 is fixedly installed at the top of the mounting bracket 11. The piston shaft end of the second cylinder 12 slidably penetrates through the mounting bracket 11 and is fixedly installed with a connecting block 13. A punching block 14 is fixedly installed at the bottom of the connecting block 13. After the sheet metal part is clamped, the second cylinder 12 is then used to drive the connecting block 13 and the punching block 14 to descend synchronously, so that the bottom of the punching block 14 contacts the top of the sheet metal part. Through the cooperation of the punching block 14 and the two bending blocks 16, the function of processing and bending the sheet metal part can be achieved.

[0043] The implementation principle of the embodiment of the present utility model is as follows: Chamfers are provided on the opposite sides of the two bending blocks 16, so that a "V" shape is formed between the two bending blocks 16, which is convenient for the subsequent bending of the sheet metal part by the device. When the device is in use, the staff can drive the two bending blocks 16 to move synchronously through the adjusting component, so as to adjust the distance between the two bending blocks 16, which is convenient for the device to process products with different angles later. After the distance between the two bending blocks 16 is adjusted, the staff places the sheet metal part on the tops of the two bending blocks 16, and then clamps and positions the sheet metal part through the clamping component. Then, the second cylinder 12 is used to drive the connecting block 13 and the punching block 14 to descend synchronously, so that the bottom of the punching block 14 contacts the top of the sheet metal part. Through the cooperation of the punching block 14 and the two bending blocks 16, the function of processing and bending the sheet metal part can be achieved. When the punching block 14 punches the sheet metal part, the clamping component always contacts the opposite side of the sheet metal part, which helps to prevent the sheet metal part from shifting during punching and is beneficial to maintaining the processing quality of the product.

[0044] The above are all the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A sheet metal bending machine, comprising a base (1), characterized in that: Four columns are provided at the four corners of the bottom end of the base (1). A processing table (2) is fixedly installed at the top end of the base (1). An installation frame (11) is fixedly installed at the top end of the base (1). Two symmetrically distributed bending blocks (16) are slidably installed at the top end of the processing table (2). Chamfers are provided on the opposite sides of the two bending blocks (16). An adjusting assembly is provided between the two bending blocks (16) and the processing table (2). First cylinders (6) are fixedly installed on both sides of the installation frame (11). The piston shafts of the two first cylinders (6) slidably penetrate through the installation frame (11). A clamping assembly is provided between the two first cylinders (6). A second cylinder (12) is fixedly installed at the top end of the installation frame (11). The piston shaft end of the second cylinder (12) slidably penetrates through the installation frame (11) and is fixedly installed with a connecting block (13). A punching block (14) is fixedly installed at the bottom end of the connecting block (13).

2. The sheet metal bending machine according to claim 1, characterized in that: The adjusting assembly includes an installation box (4) fixedly installed on one side of the processing table (2). A reduction motor (21) is provided in the installation box (4). An installation groove (5) is opened at the top end of the processing table (2). A double-threaded screw rod (20) is rotatably installed in the installation groove (5). Support blocks (19) are sleeved on the side walls of the two sections of the double-threaded screw rod (20). The top ends of the two support blocks (19) penetrate through the installation groove (5) and are fixedly connected to the bottom end of the same group of bending blocks (16). One end of the double-threaded screw rod (20) close to the reduction motor (21) penetrates through the processing table (2) and extends into the installation box (4). The end of the double-threaded screw rod (20) penetrating through the installation box (4) is fixedly connected to the output shaft end of the reduction motor (21).

3. A sheet metal bending machine according to claim 2, characterized in that: Stabilizing blocks are fixedly installed on both sides of the two support blocks (19). Stabilizing grooves matching the stabilizing blocks on the same side are opened on the inner wall of the installation groove (5).

4. A sheet metal bending machine according to claim 1, characterized in that: Two symmetrically distributed grooves (3) are opened at the top end of the processing table (2). Slide rods (17) are fixedly installed in the two grooves (3). Two symmetrically distributed sliders (18) are slidably sleeved on the side walls of the two slide rods (17). The top ends of the two sliders (18) in the same group are fixedly connected to the bottom end of the bending block (16) on the same side.

5. A sheet metal bending machine according to claim 1, characterized in that: The clamping assembly includes clamping plates (15) arranged at the opposite ends of the piston shafts of the two first cylinders (6). Rubber pads are fixedly installed on the opposite sides of the two clamping plates (15). Pillars (8) are fixedly installed at the end parts of the piston shafts of the two first cylinders (6). Moving grooves (22) are opened on the opposite sides of the two pillars (8). Support rods (9) are slidably installed in the two moving grooves (22). Springs (23) are fixedly connected between the opposite sides of the two support rods (9) and the inner walls of the moving grooves (22) on the opposite sides of the same group. The opposite ends of the two support rods (9) are fixedly connected to the opposite sides of the same group of clamping plates (15).

6. A sheet metal bending machine according to claim 5, characterized in that: Two symmetrically distributed limiting blocks are fixedly installed on the side walls of the opposite ends of the two support rods (9). Limiting grooves matching the limiting blocks on the same group are opened on the inner wall of the moving groove (22).

7. A sheet metal bending machine according to claim 5, characterized in that: Support plates (10) are fixedly installed at the tops of the two clamping plates (15). Balance rods (7) are fixedly installed on the opposite sides of the two support plates (10). The opposite ends of the two balance rods (7) slidably penetrate through the mounting frame (11).

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