A screw rotates 180 degree flip jig

Abstract

The utility model relates to the technical field of clamp, especially for a screw rod rotates 180 degrees turnover clamp, including mounting seat, mounting seat lower extreme fixed mounting has the rotary cylinder, the output of rotary cylinder installs the screw rod, the one end bolted mounting of screw rod away from rotary cylinder has the rotary block, the one end fixed mounting of rotary block away from screw rod has the rotary seat, the inside fixed mounting of rotary seat has the clamping cylinder, both sides of rotary seat all swing joint have the chuck, the output of clamping cylinder swing joint has two first connecting rods, the left part of rotary seat upper end and the right part of upper end all swing joint have second connecting rod. The utility model discloses a screw rod rotates 180 degrees turnover clamp, has reduced the space occupation problem that a plurality of components dispersed layout led in traditional clamp, the close link between each part, transmission path is short, has promoted the compactness of overall structure, can adapt to the cramped workspace installation and use demand.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a screw rotation 180-degree flipping clamp. Background Technology

[0002] In industrial production, for the processing and assembly of cylindrical workpieces, fixtures are often used to clamp and flip the workpieces to meet the processing needs of different workstations. However, the drive and transmission structure design of existing fixtures is relatively decentralized. Most of them use a single cylinder to drive the clamping action, and then use an additional motor or hydraulic mechanism to drive the flipping action. This decentralized drive method not only requires separate installation space for multiple power sources, but also requires complex transmission connection components, resulting in a large overall size of the fixture and a high space occupation rate. Especially in small production workshops or assembly lines with dense layout of multiple equipment, it is difficult to install and use flexibly. At the same time, the decentralized transmission path increases the loss in the power transmission process, which can easily lead to problems such as transmission jamming and delay, affecting the synchronization and accuracy of clamping and flipping actions. This can lead to displacement or loosening of the workpiece during the flipping process, posing a safety hazard. Therefore, we have introduced a new screw rotation 180-degree flipping fixture. Utility Model Content

[0003] The main purpose of this utility model is to provide a screw rotation 180-degree flipping fixture, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A screw rotation 180-degree flipping clamp includes a mounting base. A rotary cylinder is fixedly mounted on the lower end of the mounting base. A lead screw is mounted on the output end of the rotary cylinder. A rotating block is bolted to the end of the lead screw away from the rotary cylinder. A rotating seat is fixedly mounted on the end of the rotating block away from the lead screw. A clamping cylinder is fixedly mounted inside the rotating seat. Chucks are movably connected to both sides of the rotating seat. Two first connecting rods are movably connected to the output end of the clamping cylinder. Second connecting rods are movably connected to the upper left and upper right parts of the rotating seat. A pad is fixedly connected to the upper middle part of the rotating seat. Clamping blocks are fixedly mounted on the clamping contact parts of the two chucks. Clamping pads are fixedly mounted on the inner sides of the two clamping blocks.

[0005] Preferably, the mounting base is bolted to the external robotic arm.

[0006] By adopting the above technical solution, the mounting base and the external robotic arm can be detachably connected by bolts, which can ensure the firmness of the connection between the mounting base and the robotic arm, and prevent the clamp from shifting or falling off due to loose connection during the movement and rotation of the robotic arm, thus ensuring the safety of operation.

[0007] Preferably, the lead screw is located inside the mounting base, and the rotating block does not contact the mounting base.

[0008] By adopting the above technical solution, the lead screw is built into the mounting base, which can effectively protect the lead screw. Since the rotating block does not contact the mounting base, the frictional resistance generated during the relative movement of the two can be completely eliminated. This ensures that when the rotating cylinder drives the lead screw to rotate the rotating block, rotating base and subsequent chuck assembly, the transmission process is smoother and will not cause rotational jamming or a decrease in transmission efficiency due to friction.

[0009] Preferably, the two clamps are symmetrically distributed and the two clamps are the same size.

[0010] By adopting the above technical solution: a symmetrically distributed and uniformly sized chuck structure, it can be ensured that when the clamping cylinder drives the chuck to clamp the cylindrical workpiece through the connecting rod assembly, the clamping force applied by the two chucks is relative in direction and balanced in magnitude, so that the center point of the force on the workpiece coincides with its own axis, avoiding the workpiece from shifting, tilting or being locally deformed due to uneven force during the clamping process.

[0011] Preferably, the two first links are movably connected to the two clamps respectively, and the two second links are movably connected to the two clamps respectively.

[0012] By adopting the above technical solution, the first link and the second link form a movable connection structure with the corresponding chuck, which constitutes a multi-link cooperative transmission mechanism. When the clamping cylinder outputs power, the first link can directly push the chuck to move closer to the workpiece, while the second link can guide and limit the movement trajectory of the chuck.

[0013] Preferably, the pad is made of the same material as the two clamping pads.

[0014] By adopting the above technical solution: using pads and clamping pads of the same material, it can be ensured that the protective effect on the workpiece is consistent in all parts that come into contact with the fixture. For example, if both are made of highly elastic and wear-resistant rubber, the pads and clamping pads can have good cushioning performance, effectively absorbing the impact force during clamping and flipping, and ensuring that the friction force of each contact part is uniform, further enhancing the stability of workpiece clamping and preventing slippage.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By adopting a linkage mechanism that coordinates the clamping cylinder and the rotary cylinder, the clamping cylinder outputs power to drive the connecting rod assembly, which in turn drives the chuck to complete the clamping action of the cylindrical workpiece. This ensures that the cylindrical workpiece will not shift or loosen during the subsequent flipping process. At the same time, the rotary cylinder directly drives the lead screw to rotate 180 degrees, which in turn drives the clamping cylinder and the chuck to achieve a 180-degree flip through the transmission structure. This integrated drive and transmission design reduces the space occupation problem caused by the scattered layout of multiple components in traditional fixtures. The tight connection between each component and the short transmission path improve the compactness of the overall structure and can adapt to the installation and use requirements of narrow working spaces. 2. By setting a pad on the rotary seat and setting clamping blocks and clamping pads at the clamping contact points of the two chucks, when clamping a cylindrical workpiece, the pad on the rotary seat can form a flexible contact with the bottom or side of the workpiece, avoiding direct rigid collision or friction between the workpiece and the metal rotary seat. The clamping blocks on the chucks enhance the clamping stability and ensure that the clamping force is evenly transmitted. At the same time, the clamping pads are made of a material with a certain degree of elasticity and wear resistance, which not only further increases the friction with the surface of the cylindrical workpiece and prevents the workpiece from slipping during clamping and flipping, but also buffers the impact of the clamping force on the workpiece surface, avoiding scratches, marks or other damage to the workpiece surface caused by direct contact between the chucks. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a screw rotation and flipping fixture according to the present invention; Figure 2 This is a side view of a screw rotation and flipping fixture according to the present invention; Figure 3 This is a schematic diagram of point A of a screw rotation and flipping fixture according to the present invention; Figure 4 This is an enlarged structural diagram of point A of a screw rotation and flipping fixture according to the present invention.

[0017] In the diagram: 1. Mounting base; 2. Rotary cylinder; 3. Lead screw; 4. Rotating block; 5. Rotating seat; 6. Clamping cylinder; 7. Chuck; 8. First connecting rod; 9. Second connecting rod; 10. Pad; 11. Clamping block; 12. Clamping pad. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Please see Figure 1-4 This utility model provides a technical solution: A screw rotation 180-degree flipping clamp includes a mounting base 1. A rotary cylinder 2 is fixedly mounted on the lower end of the mounting base 1. A lead screw 3 is mounted on the output end of the rotary cylinder 2. A rotating block 4 is bolted to the end of the lead screw 3 away from the rotary cylinder 2. A rotating seat 5 is fixedly mounted on the end of the rotating block 4 away from the lead screw 3. A clamping cylinder 6 is fixedly mounted inside the rotating seat 5. Chucks 7 are movably connected to both sides of the rotating seat 5. Two first connecting rods 8 are movably connected to the output end of the clamping cylinder 6. Second connecting rods 9 are movably connected to the upper left and upper right parts of the rotating seat 5. A pad 10 is fixedly connected to the upper middle part of the rotating seat 5. Clamping blocks 11 are fixedly mounted on the clamping contact parts of the two chucks 7. Clamping pads 12 are fixedly mounted on the inner sides of the two clamping blocks 11.

[0022] In this embodiment, the mounting base 1 is bolted to the external robotic arm, the lead screw 3 is located inside the mounting base 1, and the rotating block 4 does not contact the mounting base 1.

[0023] Through the above solution: the mounting base 1 is connected to the external robotic arm with bolts, which can ensure that the connection between the two is firm and prevent the mounting base 1 from becoming loose and shifting or falling off when the clamp moves or flips with the robotic arm, thus ensuring operational safety. The lead screw 3 is placed inside the mounting base 1, and the mounting base 1 can effectively protect the lead screw 3. The rotating block 4 does not contact the mounting base 1, which can eliminate the frictional resistance when the two move relative to each other. This ensures that when the rotating cylinder 2 drives the lead screw 3 to drive the rotating block 4, the rotating base 5 and the subsequent chuck 7 assembly to rotate, the transmission is smooth and without jamming.

[0024] In this embodiment, the two clamps 7 are symmetrically distributed and are the same size. The two first connecting rods 8 are movably connected to the two clamps 7 respectively, and the two second connecting rods 9 are movably connected to the two clamps 7 respectively. The pad 10 and the two clamping pads 12 are made of the same material.

[0025] Through the above scheme: the two chucks 7 are symmetrically distributed and of the same size, so that when the clamping cylinder 6 drives the chucks 7 to clamp a cylindrical workpiece via the connecting rod assembly, the clamping forces applied by the two chucks 7 are opposite in direction and equal in magnitude, ensuring that the center of force on the workpiece coincides with its own axis, thus preventing workpiece offset, tilting, or local deformation; the two first connecting rods 8 are movably connected to the two chucks 7 respectively, and can directly push the chucks 7 closer to the workpiece when the clamping cylinder 6 outputs power; the two second connecting rods 9 are movably connected to the two chucks 7 respectively, and can guide and limit the movement trajectory of the chucks 7 to prevent... The chuck 7 shifts or wobbles laterally to ensure that it approaches the workpiece synchronously along a preset symmetrical path, achieving precise clamping. The pad 10 and the two clamping pads 12 are made of the same material, which ensures that the protection effect of each contact part between the workpiece and the pad 10 and the clamping pad 12 is consistent, avoiding scratches and damage to the workpiece due to uneven local force or insufficient protection caused by material differences. If a highly elastic and wear-resistant material is used, the buffering performance and friction can be improved simultaneously, enhancing the workpiece clamping stability. Moreover, the same material facilitates the unified procurement and replacement of the pad 10 and the clamping pad 12 in the future, reducing spare parts management costs.

[0026] It should be noted that this utility model is a screw rotation 180-degree flipping clamp. In use, the clamp is first fixed to the external robotic arm by bolts connecting the mounting base 1 to the robotic arm. The robotic arm moves the clamp to the position of the cylindrical workpiece to be clamped. Then, the clamping cylinder 6 inside the rotating base 5 is activated, and its output end pushes the two first connecting rods 8 to move. Since the two first connecting rods 8 are respectively movably connected to two symmetrically distributed and identically sized chucks 7, and the two second connecting rods 9 are also respectively movably connected to the two chucks 7, under the pushing force of the first connecting rods 8 and the guiding and limiting action of the second connecting rods 9, the two chucks 7 move towards the workpiece synchronously along a preset symmetrical path until the clamping pads 12 on the inner side of the clamping blocks 11 on the chucks 7 are in close contact with both sides of the workpiece. At this time, the clamping cylinder 6 maintains the output pressure, and the friction between the clamping pads 12 and the workpiece... The force and balanced clamping force firmly hold the workpiece, and the pad 10 and the clamping pad 12 are made of the same material, which can form a consistent protective effect on all contact parts of the workpiece and avoid damage to the workpiece. When the workpiece needs to be flipped, the rotary cylinder 2 at the lower end of the mounting base 1 is activated, and its output end drives the lead screw 3 located inside the mounting base 1 to rotate. The lead screw 3 drives the rotary block 4 to rotate. Since the rotary block 4 does not contact the mounting base 1, there is no frictional resistance. The rotary block 4 can smoothly drive the rotary base 5, the clamping cylinder 6, the chuck 7 and the clamped workpiece to rotate synchronously. At this time, the workpiece also completes a 180-degree flip with the fixture. After the flip is completed, the rotary cylinder 2 stops working, and the robotic arm can drive the fixture and the flipped workpiece to the designated work position. Finally, the clamping cylinder 6 is depressurized, which drives the first connecting rod 8 to reset, thereby causing the two chucks 7 to move away from each other and release the workpiece, completing a complete clamping and flipping operation.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A screw rotation and flipping clamp, comprising a mounting base (1), characterized in that: A rotary cylinder (2) is fixedly installed at the lower end of the mounting base (1). A lead screw (3) is installed at the output end of the rotary cylinder (2). A rotating block (4) is bolted to the end of the lead screw (3) away from the rotary cylinder (2). A rotating seat (5) is fixedly installed at the end of the rotating block (4) away from the lead screw (3). A clamping cylinder (6) is fixedly installed inside the rotating seat (5). A chuck (7) is movably connected to both sides of the rotating seat (5). Two first connecting rods (8) are movably connected to the output end of the clamping cylinder (6). A second connecting rod (9) is movably connected to the upper left and upper right parts of the rotating seat (5). A pad (10) is fixedly connected to the upper middle part of the rotating seat (5). A clamping block (11) is fixedly installed on the clamping contact part of the two chucks (7). A clamping pad (12) is fixedly installed on the inner side of the two clamping blocks (11).

2. The screw rotation and flipping fixture according to claim 1, characterized in that: The mounting base (1) is bolted to the external robotic arm.

3. The screw rotation and flipping fixture according to claim 1, characterized in that: The lead screw (3) is located inside the mounting base (1), and the rotating block (4) does not contact the mounting base (1).

4. The screw rotation and flipping fixture according to claim 1, characterized in that: The two clamps (7) are symmetrically distributed and the two clamps (7) are the same size.

5. A screw rotation and flipping fixture according to claim 1, characterized in that: The two first links (8) are movably connected to the two clamps (7) respectively, and the two second links (9) are movably connected to the two clamps (7) respectively.

6. The screw rotation and flipping fixture according to claim 1, characterized in that: The pad (10) is made of the same material as the two clamping pads (12).

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