Feeding and discharging double-end clamp for punching machine

Abstract

The utility model relates to the technical field of clamps, and provides a feeding and discharging double-end clamp for a punching machine, which comprises a support arm, a support device, a pneumatic permanent magnet, a lower pressing block, a first support, a driving device and a clamping jaw, the support device is arranged on one side of the support arm, the pneumatic permanent magnet and the lower pressing block are both arranged on the support device, and the first support is arranged on the lower pressing block. The lower pressing block is arranged on one side of the supporting arm, the pneumatic permanent magnet penetrates through the lower pressing block, the driving device is arranged on the other side of the supporting arm, the clamping jaws are arranged on the driving device, the number of the clamping jaws is two, and the two clamping jaws are oppositely arranged. The combination of the pneumatic permanent magnet and the lower pressing block ensures the stability of a workpiece in the machining process, machining errors caused by movement or falling of the workpiece are reduced, the accurate design and the opposite clamping mode of the clamping jaws enable the workpiece to be positioned more accurately in the working procedures such as punching, and the machining precision and the yield are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, and particularly relates to a double-head feeding and discharging jig for a punching press. Background Art

[0002] The processing material is a round tube with an outer diameter of 19 mm and a length of 700 mm, which needs to go through two processes of bending + punching. And there are two sets of molds in the bending step, namely a triangular mold and a quadrangular mold, and the two sets of molds need to be replaced according to production requirements. In the traditional round tube bending and punching processes, manual operation is required. Since the material is closely attached to the bending machine after bending, two employees are needed to bend down, reach into the bending machine to take it, and in the punching stage, the material, which is a bent round tube, is not easy to take, resulting in high manual risk and low production efficiency. In view of this, this application is specifically proposed. Content of the Utility Model

[0003] This application proposes a double-head feeding and discharging jig for a punching press to solve the technical problems in the prior art that in the round tube bending and punching processes, manual operation is required. Since the material is closely attached to the bending machine after bending, two employees are needed to bend down, reach into the bending machine to take it, and in the punching stage, the material, which is a bent round tube, is not easy to take, resulting in high manual risk and low production efficiency. The above technical object of the utility model is achieved through the following technical solutions:

[0004] A double-head feeding and discharging jig for a punching press includes a support arm, a support device, a pneumatic permanent magnet, a lower pressing block, a first bracket, a driving device, and clamping jaws. The support device is arranged on one side of the support arm. The pneumatic permanent magnet and the lower pressing block are both arranged on the support device. The pneumatic permanent magnet passes through the lower pressing block. The driving device is arranged on the other side of the support arm. The clamping jaws are arranged on the driving device. The number of the clamping jaws is two, and the two clamping jaws are arranged oppositely.

[0005] Preferably, the lower pressing block is integrally in a rectangular shape, and a semi-circular arc through groove is arranged in the middle of the lower pressing block.

[0006] Preferably, a semi-circular groove is formed on the side of the clamping jaw away from the support arm, and a circular through hole is formed in the middle after the two clamping jaws on both sides are closed together.

[0007] Preferably, the support device includes a slide rail and a second bracket. The slide rail is arranged on one side of the support arm. The second brackets are symmetrically and slidably arranged on both sides of the slide rail. The pneumatic permanent magnets are respectively arranged on the second brackets on both sides. The lower pressing blocks are all arranged at the ends of the second brackets.

[0008] Preferably, the pneumatic permanent magnet extends into the semi-circular arc through groove in the middle of the lower pressing block.

[0009] Preferably, the driving device is a pneumatic finger cylinder.

[0010] Compared with the prior art, the beneficial effects of the present utility model include:

[0011] The combination of the pneumatic permanent magnet and the pressing block ensures the stability of the workpiece during the processing, reduces the processing errors caused by the movement or falling off of the workpiece. The precise design and the opposite clamping method of the clamping jaws make the positioning of the workpiece more accurate during processes such as punching, improving the processing accuracy and the qualified product rate; by setting a double-head fixture, one machine can perform multiple operations to improve production efficiency, and the supporting positioning tooling is added with a guide groove to realize automatic production of two kinds of materials without changing the fixture and adjusting the position.

[0012] This application replaces the work that traditionally requires the cooperation of two or more workers, reducing the manpower requirement; the automated operation reduces the labor intensity of workers and reduces the production delays and losses caused by improper manual operations; it improves the production accuracy and the qualified product rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic structural diagram of the supporting device of the present utility model;

[0015] Figure 3 is a schematic structural diagram of the pressing block of the present utility model;

[0016] Figure 4 is a schematic working diagram of the present utility model in side view.

[0017] In the figure: 1, support arm; 2, pneumatic permanent magnet; 3, pressing block; 4, first bracket; 5, clamping jaw; 6, slide rail; 7, second bracket; 8, pneumatic finger cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0019] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it 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, and it can be the communication inside two components. 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.

[0020] To make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0021] Please refer to the attached Figures 1-4 , a double-head fixture for loading and unloading of a stamping machine, comprising a support arm 1, a support device, a pneumatic permanent magnet 2, a lower pressing block 3, a first bracket 4, a driving device, and a clamping jaw 5. The support device is arranged on one side of the support arm 1. The pneumatic permanent magnet 2 and the lower pressing block 3 are both arranged on the support device. The lower pressing block 3 is integrally in a rectangular shape, and a semi-circular arc through groove is provided in the middle of the lower pressing block 3. The pneumatic permanent magnet 2 extends into the semi-circular arc through groove in the middle of the lower pressing block 3. The driving device is arranged on the other side of the support arm 1. The clamping jaw 5 is arranged on the driving device. The number of the clamping jaws 5 is two, and the two clamping jaws 5 are arranged oppositely. A semi-circular groove is opened on the side of the clamping jaw 5 away from the support arm 1. A circular through hole is formed in the middle after the two clamping jaws 5 on both sides are closed.

[0022] Adopting the above technical solutions, the support arm 1 serves as the main support structure of the entire fixture, responsible for carrying and fixing other components. The support device is firmly installed on one side of the support arm 1, providing a stable working platform for the pneumatic permanent magnet 2 and the lower pressing block 3. The pneumatic permanent magnet 2 is a device that controls its magnetism through pneumatic means. When the pneumatic permanent magnet 2 is activated, it will generate a strong magnetic force for adsorbing and fixing materials. The semi-circular arc through groove design in the middle of the lower pressing block 3 allows the magnetic lines of force of the pneumatic permanent magnet 2 to act more concentratedly on the workpiece, improving the adsorption efficiency. At the same time, the semi-circular arc through groove in the middle of the lower pressing block 3 can better fit the outer shape of the round tube, facilitating clamping.

[0023] The clamping jaw 5 is arranged on a driving device such as a pneumatic finger cylinder 8, and realizes the opening and closing actions through the control of the driving device. The number of the clamping jaws 5 is two and they are arranged oppositely. When the driving device is activated, the two clamping jaws 5 will move towards the center simultaneously to clamp the round tube; conversely, they will loosen the round tube. A semi-circular groove is opened on the side of the clamping jaw 5 away from the support arm 1. Such a design enables a circular through hole to be formed in the middle after the two clamping jaws 5 on both sides are closed, meeting the clamping requirements of workpieces with the shape and size of a round tube.

[0024] In some embodiments, the supporting device includes a slide rail 6 and a second bracket 7. The slide rail 6 is arranged on one side of the support arm 1. The second brackets 7 are symmetrically and slidably arranged on both sides of the slide rail 6. The pneumatic permanent magnets 2 are respectively arranged on the second brackets 7 on both sides. The pressing blocks 3 are both arranged at the ends of the second brackets 7. The slide rail 6 is installed on one side of the support arm 1, providing a sliding track for the second brackets 7. The arrangement of the slide rail 6 allows the pneumatic permanent magnets 2 and the pressing blocks 3 to be finely adjusted in the horizontal direction to adapt to workpieces at different positions. The pneumatic permanent magnets 2 are respectively installed on the second brackets 7 on both sides, while the pressing blocks 3 are arranged at the ends of the second brackets 7, ensuring that each operation can accurately align with the workpiece.

[0025] In some embodiments, the driving device is a pneumatic finger cylinder 8. The pneumatic finger cylinder 8 uses compressed air as the power source and can complete the opening and closing actions of the clamping jaws 5 in a short time, meeting the fast-paced requirements of the automated production line. At the same time, the stability of the pneumatic system also ensures the reliability and consistency of the fixture during long-term operation.

[0026] Working principle: This application is used in cooperation with a supporting positioning tooling. The positioning tooling is placed between the pipe bender and the punching machine. As shown in the positioning tooling Figure 4 The round pipe to be processed is placed on the positioning tooling. The positioning tooling uses positioning blocks with the same arc as the round pipe of the processed material at both ends, and parallel clamping jaw 5 cylinders in the middle to position the material, so as to ensure that the position of the clamping jaws 5 of the fixture is consistent each time, thereby ensuring the punching accuracy.

[0027] In this application, two pneumatic permanent magnets 2 and pressing blocks 3 are used at one end to achieve rapid and stable positioning and suction from the pipe bender. The round pipe is sucked by the pneumatic permanent magnets 2 to solve the problem that the material clings to the pipe bender and has a large arc after pipe bending. Considering unstable or excessive suction, two pressing blocks 3 that are shaped like the processed material are designed.

[0028] During the round pipe punching stage, it is not easy to fix and pick up. By using the pneumatic finger cylinder 8 and the clamping jaws 5 in cooperation, the clamping jaws 5 can clamp the round pipe. The surface of the clamping jaws 5 is processed with a matte finish to prevent sliding during the process and causing inaccurate punching accuracy. The through hole formed after clamping and closing is consistent with the arc of the processed material pipe, ensuring accurate grasping.

[0029] It should be noted that the middle position of the support arm 1 is connected to the robotic arm. The robotic arm drives the entire double-head fixture to clamp the round pipe. The robotic arm is a prior art and will not be described in detail here. This application realizes the accuracy requirements, high efficiency, and good product rate of one machine with multiple operations in the whole process, and realizes cost reduction and efficiency increase. The overall structure of this application is simple, replacing two workers, quickly grasping and positioning, ensuring on-site safety, and achieving the effect of cost savings for customers with one machine having multiple operations.

[0030] It should be understood that the above specific embodiments of the present utility model are only for illustrative explanation or interpretation of the principle of the present utility model, and do not constitute a limitation to the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present utility model shall be included within the protection scope of the present utility model. In addition, the appended claims of the present utility model are intended to cover all variations and modifications that fall within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A double-head clamp for loading and unloading a punching machine, characterized in that: The invention comprises a support arm (1), a supporting device, a pneumatic permanent magnet (2), a pressing block (3), a first bracket (4), a driving device and a clamping jaw (5), wherein the supporting device is arranged on one side of the support arm (1), the pneumatic permanent magnet (2) and the pressing block (3) are both arranged on the supporting device, the pneumatic permanent magnet (2) passes through the pressing block (3), the driving device is arranged on the other side of the support arm (1), the clamping jaw (5) is arranged on the driving device, and the number of the clamping jaws (5) is two, and the two clamping jaws (5) are arranged opposite to each other.

2. A double-head fixture for loading and unloading a punching machine according to claim 1, characterized in that: The lower pressing block (3) is a rectangular device as a whole, and a semicircular arc through groove is provided in the middle of the lower pressing block (3).

3. The double-head fixture for loading and unloading a punching machine according to claim 1, characterized in that: A semicircular groove is formed on the side of the clamping jaw (5) away from the support arm (1), and a circular through hole is formed in the middle of the clamping jaws (5) on both sides when they are brought together.

4. The double-head fixture for loading and unloading a punching machine according to claim 1, characterized in that: The support device comprises a slide rail (6) and a second bracket (7), wherein the slide rail (6) is arranged on one side of the support arm (1), and the second bracket (7) is symmetrically slidably arranged on both sides of the slide rail (6), the pneumatic permanent magnet (2) is respectively arranged on the second bracket (7) on both sides, and the lower pressing block (3) is arranged at the end of the second bracket (7).

5. The double-head fixture for loading and unloading a punching machine according to claim 2, characterized in that: The pneumatic permanent magnet (2) extends into the semicircular arc groove in the middle of the lower pressing block (3).

6. The double-head fixture for loading and unloading a punching machine according to claim 1, characterized in that: The driving device is a pneumatic finger cylinder (8).

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