Limiting clamp for production line punching machine
By designing a limit fixture containing cylinder 1 and cylinder 2, the mechanical structure of hinge seat, connecting rod, rotating rod and clamping is used to realize automatic centering clamping and accurate positioning of workpieces, solving the existing technology The problem of uncertainty in the clamping position of the workpiece and safety hazards in the middle improves the safety and efficiency of the punch press.
Patent Information
- Application Number
- CN202420831627.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-19
AI Technical Summary
The existing limit fixtures for punching machines cannot ensure that each clamp moves the same distance during use, resulting in uncertainty in the clamping position of the workpiece and pose safety hazards.
A limit fixture for production line punching machines was designed. Through the synergy between cylinder 1 and cylinder 2, the mechanical structure of hinge seat, connecting rod, rotating rod, cam and clamping is used to achieve automatic centering and clamping of workpieces. Position and move the workpiece directly below the punch punch through the cylinder stroke control.
The workpiece is accurately positioned and clamped, which improves safety, avoids the random position of the workpiece under the punch head of the punch, and enhances the safety and efficiency of the use process.
Smart Images
Figure CN222133219U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of limiting clamps, in particular to a limiting clamp for a punching machine of a production line. Background Art
[0002] A punch press is a mechanical device that uses pressure and molds to process materials. It is usually used to manufacture metal parts such as automobiles, airplanes, and electrical appliances. The working principle of a punch press is to place the material to be processed on the punch press, and then move the punch head (or upper mold) downward to squeeze and deform the material in the mold to obtain the desired shape and size. In the process of punching the product, a limit fixture is needed to limit the product.
[0003] According to the search, the Chinese patent document, announcement number: CN215657462U, discloses a limit clamp for a punch press. When using the limit clamp for a punch press, first twist the handle, which then drives the screw to rotate, pushes it to move in the fixed block through the thread, pulls the movable block to slide in the clamping seat through the first limit slide groove and the first limit slider, and adjusts the positions of the other two movable blocks in the same way, then places the product on the clamping seat, and turns the handle to push the movable block to move through the screw to clamp the product.
[0004] However, in actual use, the above-mentioned limit clamp needs to manually rotate the handle in sequence to drive the clamp block to move. The three clamp blocks cooperate to clamp the workpiece. However, since the handle needs to be rotated three times, it is impossible to ensure that each clamp block moves the same distance, and thus it is impossible to ensure that the tool is clamped in the center. This makes the position of the workpiece uncertain after being clamped, and the position of the punching machine when processing it is random, which cannot meet actual needs. In addition, if the workpiece is under the punch of the punch during the clamping process, there will be certain safety hazards. To this end, we propose a limit clamp for production line punching machines to solve the above problems. Utility Model Content
[0005] 1. Technical issues to be solved
[0006] In view of the deficiencies in the prior art, the utility model provides a limit clamp for a punching machine in a production line, which can center and clamp the workpiece to be punched, ensuring that the workpiece is directly below the punch of the punching machine and is not below the punch of the punching machine before punching, thereby improving safety and solving the above-mentioned technical problems.
[0007] (II) Technical solution
[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a limit clamp for a punching machine in a production line, comprising a punching machine worktable, a guide rail is installed on the top of the punching machine worktable, the outer surface of the guide rail is slidably connected to the bottom plate, the top surface of the bottom plate is fixedly connected to the punching table, two clamps are slidably connected inside the punching table, the two sides of the clamps are fixedly connected to ear blocks, the inner surface of the ear blocks is slidably connected to a light rod, the outer surface of the light rod is sleeved with a spring, the top surface of the bottom plate is rotatably connected to a rotating rod, the outer surface of the rotating rod is plugged with a cam, and the outer surface of the rotating rod is fixedly connected to a connecting rod, one end of the connecting rod is fixedly connected to a hinge seat, a No. 1 cylinder is connected to the hinge seat through a shaft, a fixed plate is fixedly connected to the top surface of the bottom plate, the outer surface of the fixed plate is connected to the No. 2 cylinder, and the outer surface of the light rod is movably connected to the side plate.
[0009] Preferably, both ends of the light rod are provided with limit blocks, the outer surface of the cam contacts the side plate and one of the clamping plates, a slide groove is penetrated through the outer surface of the side plate, and the connecting rod is inserted into the slide groove of the side plate.
[0010] Through the above technical scheme, the workpiece to be stamped is placed on the top surface of the stamping table. When the No. 1 cylinder is started, its push rod end drives the hinge seat, the hinge seat drives the connecting rod, the connecting rod drives the rotating rod to rotate, the rotating rod drives the cam to rotate, and the cam hits the side plate and one of the clamps during rotation. In this way, the side plate pulls the limit block at one end of the light rod, and the limit block at the other end of the light rod pulls the other clamp. In this way, the two clamps move toward each other, thereby clamping the workpiece to be stamped and ensuring that the workpiece is in the center position of the stamping table.
[0011] Preferably, two ends of the spring abut against ear blocks, a dovetail groove is provided on the top of the punching table, and the bottom of the clamping plate is fixedly connected to a dovetail tenon.
[0012] Through the above technical solution, the dovetail tenon at the bottom of the splint slides in the dovetail groove of the stamping table during movement, thereby ensuring the correct movement direction of the splint. When the cam moves in the opposite direction, the gap between the side plate and one of the splints becomes smaller, and under the action of the spring, it hits the two ear blocks, thereby driving the two splints to separate, and then the clamped workpiece can be released.
[0013] Preferably, a circular hole is opened in the center of the top of the punching table, a control switch is installed in the circular hole, the control switch is used to control the No. 1 cylinder, and a compression spring is installed in the circular hole, and the top of the compression spring contacts the pressure block.
[0014] Through the above technical solution, when the workpiece is placed on the top surface of the stamping table, the workpiece will press the pressing block to make it move downward, and then the pressing block will press the control switch. The control switch is turned on to start the No. 1 cylinder, and the push rod end of the No. 1 cylinder begins to extend. In this way, after the workpiece is placed on the stamping table, the No. 1 cylinder can be automatically started to drive the two clamps to clamp the workpiece, thereby improving the efficiency of clamping the workpiece.
[0015] Preferably, the top surface of the punch press workbench is fixedly connected to a mounting plate, and a No. 2 cylinder is mounted on the outer surface of the mounting plate.
[0016] Through the above technical scheme, the mounting plate is used to connect the No. 2 cylinder. When the workpiece is clamped by the two clamps, the No. 2 cylinder is started to drive the fixed plate, and the fixed plate drives the bottom plate to move. The two guide rails ensure the movement direction of the bottom plate, and the bottom plate drives the stamping table to move. In this way, the stamping table can be moved to the bottom of the punch of the punch press. By setting the stroke of the No. 2 cylinder, the center of the stamping table can be accurately moved to the bottom of the punch of the punch press, thus avoiding placing the workpiece to be stamped under the punch of the punch press, which not only facilitates the placement of the workpiece but also improves safety.
[0017] Preferably, three buttons are installed on the top surface of the punch press workbench, two of which are used to control cylinder No. 2, and the other button is used to control cylinder No. 1.
[0018] Through the above technical solution, the No. 2 cylinder can only be started when the two symmetrical buttons are started synchronously, thus avoiding misoperation. When the workpiece is clamped by the two clamps, the No. 1 cylinder can be reset by starting another button, so that the two clamps can release the workpiece.
[0019] Compared with the prior art, the utility model provides a limit clamp for a production line punch press, which has the following beneficial effects:
[0020] 1. The utility model places the workpiece to be punched on the top surface of the punching table. When the No. 1 cylinder is started, its push rod end drives the hinge seat, the hinge seat drives the connecting rod, the connecting rod drives the rotating rod to rotate, the rotating rod drives the cam to rotate, and the cam contacts the side plate and one of the clamping plates during rotation. In this way, the side plate pulls the limit block at one end of the light rod, and the limit block at the other end of the light rod pulls the other clamping plate. In this way, the two clamping plates move toward each other, thereby clamping the workpiece to be punched and ensuring that the workpiece is in the center position of the punching table.
[0021] 2. The utility model starts the No. 2 cylinder to drive the fixed plate, and the fixed plate drives the bottom plate to move. The two guide rails ensure the movement direction of the bottom plate. The bottom plate drives the stamping table to move, so that the stamping table can be moved to the bottom of the punch of the punch press. By setting the stroke of the No. 2 cylinder, the center of the stamping table can be accurately moved to the bottom of the punch of the punch press, thus avoiding placing the workpiece to be stamped under the punch of the punch press, which not only facilitates the placement of the workpiece but also improves safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model from a first viewing angle;
[0023] Figure 2It is a top view schematic diagram of the structure of the utility model;
[0024] Figure 3 It is a three-dimensional schematic diagram of the structure of the utility model from a second viewing angle;
[0025] Figure 4 It is a side schematic diagram of the structure of the utility model;
[0026] Figure 5 It is a cross-sectional schematic diagram of the structural stamping table of the utility model.
[0027] Among them: 1. Punch press workbench; 2. Guide rail; 3. Bottom plate; 4. Punching table; 5. Clamp; 6. Ear block; 7. Polish rod; 8. Spring; 9. Rotating rod; 10. Cam; 11. Connecting rod; 12. Hinge seat; 13. No. 1 cylinder; 14. Fixed plate; 15. No. 2 cylinder; 16. Round hole; 17. Control switch; 18. Compression spring; 19. Pressure block; 20. Mounting plate; 21. Button; 22. Side panel. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] See also Figure 1-Figure 5 A limit clamp for a punching machine in a production line comprises a punching machine worktable 1, a guide rail 2 is installed on the top of the punching machine worktable 1, the outer surface of the guide rail 2 is slidably connected to a base plate 3, the top surface of the base plate 3 is fixedly connected to a punching table 4, two clamps 5 are slidably connected inside the punching table 4, the two sides of the clamps 5 are fixedly connected to ear blocks 6, a light rod 7 is slidably connected inside the ear blocks 6, a spring 8 is sleeved on the outer surface of the light rod 7, the top surface of the base plate 3 is rotatably connected to a rotating rod 9, a cam 10 is inserted into the outer surface of the rotating rod 9, and a connecting rod 11 is fixedly connected to the outer surface of the rotating rod 9, one end of the connecting rod 11 is fixedly connected to a hinge seat 12, a No. 1 cylinder 13 is connected to the hinge seat 12 through an axis, a fixed plate 14 is fixedly connected to the top surface of the base plate 3, the outer surface of the fixed plate 14 is connected to the No. 2 cylinder 15, and the outer surface of the light rod 7 is movably connected to a side plate 22.
[0030] Specifically, both ends of the polished rod 7 are provided with limit blocks, the outer surface of the cam 10 contacts the side plate 22 and one of the clamping plates 5, the outer surface of the side plate 22 is penetrated with a slide groove, and the connecting rod 11 is inserted into the slide groove of the side plate 22. The advantage is that the workpiece to be punched is placed on the top surface of the punching table 4, and when the No. 1 cylinder 13 is started, its push rod end drives the hinge seat 12, the hinge seat 12 drives the connecting rod 11, the connecting rod 11 drives the rotating rod 9 to rotate, the rotating rod 9 drives the cam 10 to rotate, and the cam 10 contacts the side plate 22 and one of the clamping plates 5 during the rotation, so that the side plate 22 pulls the limit block at one end of the polished rod 7, and the limit block at the other end of the polished rod 7 pulls the other clamping plate 5, so that the two clamping plates 5 move toward each other, and then the workpiece to be punched can be clamped, and the workpiece is ensured to be in the center position of the punching table 4.
[0031] Specifically, both ends of the spring 8 abut against the ear blocks 6, a dovetail groove is provided on the top of the punching table 4, and the bottom of the clamping plate 5 is fixedly connected to the dovetail tenon. The advantage is that the dovetail tenon at the bottom of the clamping plate 5 slides in the dovetail groove of the punching table 4 during movement, thereby ensuring the correct movement direction of the clamping plate 5. When the cam 10 moves in the reverse direction, the gap between the side plate 22 and one of the clamping plates 5 becomes smaller, and the spring 8 abuts against the two ear blocks 6, thereby driving the two clamping plates 5 to separate, thereby being able to release the clamped workpiece.
[0032] Specifically, a circular hole 16 is provided at the center of the top of the punching table 4, a control switch 17 is installed in the circular hole 16, the control switch 17 is used to control the No. 1 cylinder 13, a compression spring 18 is installed in the circular hole 16, and the top of the compression spring 18 contacts the pressure block 19. The advantage is that when the workpiece is placed on the top surface of the punching table 4, the workpiece will press the pressure block 19 to make it move downward, and then the pressure block 19 presses the control switch 17, the control switch 17 is turned on and the No. 1 cylinder 13 is started, and the push rod end of the No. 1 cylinder 13 begins to extend, so that the No. 1 cylinder 13 can be automatically started after the workpiece is placed on the punching table 4 to drive the two clamps 5 to clamp the workpiece, thereby improving the efficiency of clamping the workpiece.
[0033] Specifically, the top surface of the punching machine workbench 1 is fixedly connected to the mounting plate 20, and the outer surface of the mounting plate 20 is installed with the No. 2 cylinder 15. The advantage is that the mounting plate 20 is used to connect the No. 2 cylinder 15. When the workpiece is clamped by the two clamping plates 5, the No. 2 cylinder 15 is started to drive the fixed plate 14, and the fixed plate 14 drives the bottom plate 3 to move. The two guide rails 2 ensure the movement direction of the bottom plate 3, and the bottom plate 3 drives the punching table 4 to move, so that the punching table 4 can be moved to the bottom of the punch of the punching machine. By setting the stroke of the No. 2 cylinder 15, the center of the punching table 4 can be accurately moved to the bottom of the punch of the punching machine, thus avoiding the workpiece to be punched being placed under the punch of the punching machine, which not only facilitates the placement of the workpiece but also improves safety.
[0034] Specifically, three buttons 21 are installed on the top surface of the punching machine workbench 1, two of which are used to control the No. 2 cylinder 15, and the other button 21 is used to control the No. 1 cylinder 13. The advantage is that the No. 2 cylinder 15 can be started only when the two symmetrical buttons 21 are started synchronously, thus avoiding misoperation. When the workpiece is clamped by the two clamping plates 5, the No. 1 cylinder 13 can be reset by starting another button 21, so that the two clamping plates 5 can release the workpiece.
[0035] When in use, first place the workpiece to be punched on the punching table 4, the workpiece will press the pressing block 19 to make it move downward, and then the pressing block 19 presses the control switch 17, the control switch 17 is turned on and the No. 1 cylinder 13 is started, the push rod end of the No. 1 cylinder 13 begins to extend and drives the hinge seat 12, the hinge seat 12 drives the connecting rod 11, the connecting rod 11 drives the rotating rod 9 to rotate, the rotating rod 9 drives the cam 10 to rotate, and the cam 10 hits the side plate 22 and one of the clamping plates 5 during rotation, so that the side plate 22 pulls the limit block at one end of the light rod 7, and the limit block at the other end of the light rod 7 pulls the other clamping plate 5 , so that the two clamps 5 move towards each other, and can clamp the workpiece to be punched, and then press two symmetrical buttons 21 simultaneously to start the No. 2 cylinder 15, the No. 2 cylinder 15 drives the fixed plate 14, the fixed plate 14 drives the bottom plate 3 to move, and the bottom plate 3 drives the stamping table 4 to move, so that the stamping table 4 can be moved to the bottom of the punch of the punch press, and then the punch of the punch press punches the workpiece. After the stamping is completed, reset the No. 2 cylinder 15 to reset the stamping table 4, and then press and hold another button 21 to reset the No. 1 cylinder 13, so that the two clamps 5 can release the workpiece.
[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A limit clamp for a punching machine in a production line, comprising a punching machine workbench (1), Features: A guide rail (2) is installed on the top of the punching machine workbench (1); the outer surface of the guide rail (2) is slidably connected to a bottom plate (3); the top surface of the bottom plate (3) is fixedly connected to a punching table (4); two clamping plates (5) are slidably connected inside the punching table (4); the two sides of the clamping plates (5) are fixedly connected to ear blocks (6); the ear blocks (6) are slidably connected to a light rod (7); the outer surface of the light rod (7) is sleeved with a spring (8); the top surface of the bottom plate (3) is rotatably connected to a rotating rod (9) The outer surface of the rotating rod (9) is plugged into the cam (10), and the outer surface of the rotating rod (9) is fixedly connected to the connecting rod (11), one end of the connecting rod (11) is fixedly connected to the hinge seat (12), and the hinge seat (12) is connected to the No. 1 cylinder (13) through an axis. The top surface of the bottom plate (3) is fixedly connected to a fixing plate (14), and the outer surface of the fixing plate (14) is connected to the No. 2 cylinder (15). The outer surface of the light rod (7) is movably connected to the side plate (22).
2. A limit clamp for a production line punch according to claim 1, Features: Limit blocks are provided at both ends of the light rod (7); the outer surface of the cam (10) contacts the side plate (22) and one of the clamping plates (5); a sliding groove is provided through the outer surface of the side plate (22); and the connecting rod (11) is inserted into the sliding groove of the side plate (22).
3. A limit clamp for a production line punch according to claim 1, Features: The two ends of the spring (8) abut against the ear block (6), a dovetail groove is provided on the top of the punching platform (4), and the bottom of the clamping plate (5) is fixedly connected to the dovetail tenon.
4. A limit clamp for a production line punch according to claim 1, Features: A circular hole (16) is provided at the center of the top of the punching platform (4), a control switch (17) is installed in the circular hole (16), the control switch (17) is used to control the No. 1 cylinder (13), a compression spring (18) is installed in the circular hole (16), and the top of the compression spring (18) contacts the pressure block (19).
5. A limit clamp for a production line punch press according to claim 1, Features: The top surface of the punching machine workbench (1) is fixedly connected to a mounting plate (20), and a No. 2 air cylinder (15) is mounted on the outer surface of the mounting plate (20).
6. A limit clamp for a production line punch press according to claim 1, Features: Three buttons (21) are installed on the top surface of the punching machine workbench (1), two of which are used to control the No. 2 cylinder (15), and the other button (21) is used to control the No. 1 cylinder (13).