A multi-link laser cutting chuck

Abstract

A multi-link laser cutting chuck comprises a base and a disc body provided on the base, and a clamping groove is formed in the middle of the disc body. The disc body is provided with a first sleeve and a second sleeve driven by gas, which are in sliding connection and are respectively in sliding connection with the disc body. The disc body is provided with a hollow clamping seat, and a first clamping jaw and a second clamping jaw are slidingly arranged on the clamping seat and are respectively driven by the two sleeves to move towards the middle through a multi-link transmission group. The multi-link transmission group is composed of a plurality of interlinked connecting rods, one of which is hinged to the sleeve, and the other of which is hinged to the disc body at one end and to the clamping jaw at the other end; the connecting rod hinged to the sleeve is provided with a clamping fork on both sides to clamp the hinge. A rotating bearing is arranged in the base, and the inner and outer rings of the rotating bearing are fixedly connected with the disc body, so that the disc body can stably rotate. The chuck is driven by gas and transmitted by multi-link, has compact structure and stable clamping, and is suitable for laser cutting working conditions.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, and in particular to a multi-link laser cutting chuck. Background Technology

[0002] A laser cutting chuck is a tooling used to clamp the workpiece. Once clamped, it enables the laser cutting equipment to cut the workpiece, making it an indispensable tooling in the field of laser cutting.

[0003] Current laser chucks typically use a single cylinder to drive two grippers to move toward the central clamping area for clamping. The two grippers move synchronously through a linkage connection. This clamping method is greatly affected by the linkage connection of the grippers, so the synchronization of clamping may be low. Utility Model Content

[0004] To address the problem that existing laser chucks typically use a single cylinder to simultaneously drive two grippers toward the central clamping area for clamping, with the two grippers moving synchronously via a linkage connection, this clamping method is significantly affected by the linkage connection of the grippers, resulting in potentially low clamping synchronization, this application provides a multi-link laser cutting chuck, the specific solution of which is as follows.

[0005] A multi-link laser cutting chuck includes a base, a chuck body disposed on the base, a clamping groove formed in the middle of the chuck body, a first sleeve and a second sleeve driven by gas disposed inside the chuck body, the chuck body being sleeved on the outside of the first sleeve, the first sleeve being slidably connected to the chuck body, the first sleeve being sleeved on the outside of the second sleeve, and the first sleeve and the second sleeve being slidably connected. The disc body is also provided with a clamping seat. The middle part of the clamping seat is hollow and corresponding to the clamping groove. A first clamping jaw and a second clamping jaw are slidably arranged on the clamping seat. The first clamping jaw is driven to a first sleeve, and the second clamping jaw is driven to a second sleeve. The first sleeve can drive the first clamping jaw to move toward the middle of the clamping seat, and the second sleeve can drive the second clamping jaw to move toward the middle of the clamping seat.

[0006] By adopting the above technical solution, the relative movement of the first and second sleeves is driven by gas, and then the first and second grippers are driven to move towards the center of the clamping seat through the transmission connection to complete the clamping of the workpiece. The grippers in the same group can clamp synchronously, and the two groups of grippers can clamp the product from both sides respectively. This design can effectively improve the stability and accuracy of clamping, while simplifying the drive mechanism and reducing maintenance costs.

[0007] Optionally, a multi-link transmission group is provided between the first sleeve and the first gripper, and the same multi-link transmission group is also provided between the second sleeve and the second gripper. The multi-link transmission group includes multiple links, each of which is hinged to each other. One of the links is used to hinge with the first sleeve or the second sleeve, and one end of the link is used to engage with the first gripper or the second gripper and the other end is used to hinge with the disc body.

[0008] By adopting the above technical solutions, the multi-link transmission assembly makes the motion transmission between the first sleeve and the first gripper, and between the second sleeve and the second gripper, more stable and precise. Multiple hinged links form a lever structure, enabling a larger clamping displacement with a smaller driving displacement, thus improving clamping efficiency. Simultaneously, this structure effectively disperses clamping force, preventing workpiece damage due to excessive localized force, thereby enhancing the reliability and safety of clamping.

[0009] Optionally, a clamping fork is provided on the connecting rod for hinged to the first sleeve or the second sleeve. The clamping fork is provided on both sides of the connecting rod and is used to clamp the connecting rod hinged to it.

[0010] By adopting the above technical solutions, when the connecting rod is hinged to the first or second sleeve, the clamping fork can firmly hold the connected connecting rod, improving the stability of the hinge and thus ensuring the accuracy and reliability of the multi-link transmission assembly in transmitting power. Furthermore, the design of the clamping fork can reduce the relative displacement between the connecting rods, reduce wear and vibration during transmission, and extend the service life of the device.

[0011] Optionally, a rotating bearing is provided in the base corresponding to the disk body, the outer ring of the rotating bearing is fixedly connected to the disk body, and the inner ring of the rotating bearing is fixedly connected to the disk body.

[0012] By adopting the above technical solution, a rotating bearing is installed inside the base, and the outer ring of the rotating bearing is fixedly connected to the disc body, while the inner ring is fixedly connected to the base, thereby achieving stable rotation of the disc body relative to the base. After clamping is completed, it can also drive the workpiece to rotate.

[0013] Optionally, the rotating bearings are respectively disposed at both ends of the base along its length.

[0014] By adopting the above technical solution, the rotating bearings are set at both ends of the base length direction, which can effectively improve the support stability of the disc and reduce the shaking of the disc during rotation, thereby improving the precision of laser cutting.

[0015] Optionally, the base is further provided with a drive motor, the drive motor shaft is provided with a drive gear, and the disc is provided with a transmission gear corresponding to the drive gear, the transmission gear meshing with the drive gear.

[0016] By adopting the above technical solution, the drive motor on the base can drive the disc to rotate through the meshing of the drive gear and the transmission gear, thereby realizing the automatic rotation function of the disc. This design enables the laser cutting chuck to stably and accurately adjust the workpiece angle during processing, improving processing efficiency and accuracy.

[0017] Optionally, a first air chamber is formed between the first sleeve and the disc body and the second sleeve, and a second air chamber is formed between the second sleeve and the disc body. The disc body is provided with air passages for introducing gas corresponding to the first air chamber and the second air chamber. Gas entering the first air chamber can push the first sleeve, and gas entering the second air chamber can push the second sleeve.

[0018] By adopting the above technical solution, gas enters the first and second gas chambers respectively, which can drive the first and second sleeves to move, thereby achieving precise driving of the first and second grippers. This design makes the movement of the grippers more stable and reliable, while simplifying the drive structure, improving space utilization, and enhancing the overall working efficiency and clamping accuracy of the chuck.

[0019] Optionally, the first gripper is provided with a plurality of gripper bodies, and a gripping roller is rotatably provided on the gripper body. The second gripper is also provided with a plurality of identical gripper bodies, and the gripper bodies on the first gripper and the gripper bodies on the second gripper are staggered.

[0020] By adopting the above technical solution, multiple claw bodies are respectively provided on the first and second grippers, and clamping rollers are rotatably mounted on the claw bodies. This allows the grippers to reduce friction by rolling the clamping rollers when clamping the workpiece, thus avoiding damage to the workpiece surface. Simultaneously, the staggered arrangement of the claw bodies on the first and second grippers provides a more uniform clamping force distribution during clamping, improving clamping stability and ensuring workpiece positioning accuracy during laser cutting.

[0021] In summary, this application has at least the following beneficial effects: 1. This application solves the problem that existing laser chucks typically use a single cylinder to simultaneously drive two grippers to move towards the central clamping area for clamping. The two grippers move synchronously through a linkage connection. This clamping method is greatly affected by the linkage connection of the grippers, so the degree of clamping synchronization may be low. This application uses two independent sleeves to clamp the product. One sleeve can drive the sleeves on both sides to move synchronously. The two sets of grippers, a total of four grippers, clamp the product simultaneously, which can improve the degree of clamping synchronization and clamping stability.

[0022] 2. This application also improves the convenience of processing by setting a rotatable bearing, which can further drive the workpiece to rotate after the product is clamped. Attached Figure Description

[0023] Figure 1 This is a perspective view of this embodiment.

[0024] Figure 2 This is a cross-sectional view of this embodiment.

[0025] Figure 3 This is a cross-sectional view of this embodiment.

[0026] Figure 4 This is a perspective view of this embodiment, mainly used to show the internal structure.

[0027] Explanation of reference numerals in the attached figures: 1. Base; 11. Rotary bearing; 12. Drive motor; 121. Drive gear; 2. Disc body; 21. Clamping groove; 22. First sleeve; 231. First air chamber; 23. Second sleeve; 231. Second air chamber; 24. First gripper; 241. Gripper body; 25. Second gripper; 26. Transmission gear; 27. Air passage; 28. Clamping seat; 3. Multi-link transmission assembly; 31. Connecting rod; 311. Clamping fork. Detailed Implementation

[0028] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] A multi-link 31-type laser cutting chuck, such as Figure 1 Hehe Figure 2 As shown, the device includes a base 1, on which a disc 2 is mounted. The disc 2 has a clamping groove 21 in its center. A first sleeve 22 and a second sleeve 23, driven by gas, are disposed within the disc 2. The disc 2 is fitted over the outside of the first sleeve 22, which is slidably connected to the disc 2. The first sleeve 22 is also fitted over the outside of the second sleeve 23, which is slidably connected to the second sleeve 23. A clamping seat 28 is also provided on the disc 2. The center of the clamping seat 28 is hollow, corresponding to the clamping groove 21. A first gripper 24 and a second gripper 25 are slidably mounted on the clamping seat 28. The first gripper 24 is driven to the first sleeve 22, and the second gripper 25 is driven to the second sleeve 23. The first sleeve 22 can drive the first gripper 24 to move towards the center of the clamping seat 28, and the second sleeve 23 can drive the second gripper 25 to move towards the center of the clamping seat 28. By adopting the above technical solution, the first gripper 24 is respectively disposed on both sides of the first sleeve 22, and the second gripper 25 is respectively disposed on both sides of the second sleeve 23. The first gripper 24 and the second gripper 25 can stably clamp the workpiece from the four sides of the workpiece.

[0030] like Figure 2 and Figure 3 In this implementation, a multi-link transmission group 3 is provided between the first sleeve 22 and the first gripper 24, and the same multi-link transmission group 3 is also provided between the second sleeve 23 and the second gripper 25. The multi-link transmission group 3 includes multiple links 31, which are hinged to each other. One link 31 is used to hinge with the first sleeve 22 or the second sleeve 23, and one end of another link 31 is used to engage with the first gripper 24 or the second gripper 25, while the other end is used to hinge with the disc body 2. In a specific implementation, the multi-link transmission group 3 used in this embodiment includes two links 31. One link 31 plays a direct driving role, and the head of the direct driving link 31 is spherically shaped. After engagement, it can effectively drive the corresponding gripper to move. The other link 31 is used to drive the direct driving link 31 to move. In other embodiments, more links 31 can be used to further improve the flexibility of movement during driving.

[0031] like Figure 4 As shown, a clamping fork 311 is provided on the connecting rod 31 for hinged to the first sleeve 22 or the second sleeve 23. The clamping fork 311 is provided on both sides of the connecting rod 31 and is used to clamp the connecting rod 31 that is hinged to it. In a specific implementation, the connecting rod 31 used for direct drive is clamped in the clamping fork 311, which further improves the stability during drive.

[0032] like Figure 2 and Figure 3 As shown, a rotating bearing 11 is provided inside the base 1 corresponding to the disk 2. The outer ring of the rotating bearing 11 is fixedly connected to the disk 2, and the inner ring of the rotating bearing 11 is also fixedly connected to the disk 2. The rotating bearings 11 are respectively located at both ends of the base 1 along its length. A drive motor 12 is also provided on the base 1. A drive gear 121 is provided on the shaft of the drive motor 12, and a transmission gear 26 is provided on the disk 2 corresponding to the drive gear 121. The transmission gear 26 meshes with the drive gear 121. In specific implementation, after clamping is completed, the disk 2 can still rotate under the drive of the drive motor 12, thereby further improving the convenience of processing.

[0033] like Figure 2 and Figure 3 As shown, a first air chamber 221 is formed between the first sleeve 22 and the disc body 2, and a second air chamber 231 is formed between the second sleeve 23 and the disc body 2. An air passage 27 for introducing gas is provided inside the disc body 2 corresponding to the first air chamber 221 and the second air chamber 231. Gas entering the first air chamber 221 can push the first sleeve 22, and gas entering the second air chamber 231 can push the second sleeve 23. In practical implementation, gas entering both air chambers can drive both grippers, making it faster and more convenient.

[0034] like Figure 2 and Figure 3 As shown, the first gripper 24 is provided with multiple gripper bodies 241, and a gripping roller is rotatably mounted on each gripper body 241. The second gripper 25 is also provided with multiple identical gripper bodies 241. The gripper bodies 241 on the first gripper 24 and the gripper bodies 241 on the second gripper 25 are staggered. In specific implementation, the multiple gripper bodies 241 can further improve the gripping stability, and the staggered arrangement of each gripper body 241 can reduce mutual interference during gripping.

[0035] Working principle: The product is clamped by two independent sleeves. One sleeve can drive the sleeves on both sides to move synchronously. The two sets of jaws, a total of four jaws, clamp the product at the same time, which can improve the synchronization and stability of clamping.

[0036] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-link laser cutting chuck, comprising a base (1), wherein a disc body (2) is disposed on the base (1), characterized in that: The disc body (2) has a clamping groove (21) in the middle. The disc body (2) is provided with a first sleeve (22) and a second sleeve (23) driven by gas. The disc body (2) is sleeved on the outside of the first sleeve (22). The first sleeve (22) is slidably connected to the disc body (2). The first sleeve (22) is sleeved on the outside of the second sleeve (23). The first sleeve (22) and the second sleeve (23) are slidably connected. The disc body (2) is also provided with a clamping seat (28). The middle part of the clamping seat (28) is hollowly disposed corresponding to the clamping groove (21). A first clamping claw (24) and a second clamping claw (25) are slidably disposed on the clamping seat (28). The first clamping claw (24) is driven to the first sleeve (22), and the second clamping claw (25) is driven to the second sleeve (23). The first sleeve (22) can drive the first clamping claw (24) to move toward the middle part of the clamping seat (28), and the second sleeve (23) can drive the second clamping claw (25) to move toward the middle part of the clamping seat (28). A multi-link transmission group (3) is provided between the first sleeve (22) and the first gripper (24), and the same multi-link transmission group (3) is also provided between the second sleeve (23) and the second gripper (25). The multi-link transmission group (3) includes multiple links (31), each link (31) is hinged to each other, one of the links (31) is used to hinge with the first sleeve (22) or the second sleeve (23), one end of the link (31) is used to engage with the first gripper (24) or the second gripper (25) and the other end is used to hinge with the disc body (2); A clamping fork (311) is provided on the connecting rod (31) for hinged to the first sleeve (22) or the second sleeve (23). The clamping fork (311) is provided on both sides of the connecting rod (31) and is used to clamp the connecting rod (31) hinged to it. A rotating bearing (11) is provided in the base (1) corresponding to the disk (2). The outer ring of the rotating bearing (11) is fixedly connected to the disk (2), and the inner ring of the rotating bearing (11) is fixedly connected to the disk (2).

2. The multi-link laser cutting chuck according to claim 1, characterized in that: The rotating bearings (11) are respectively disposed at both ends of the base (1) along its length.

3. The multi-link laser cutting chuck according to claim 2, characterized in that: The base (1) is also provided with a drive motor (12), and a drive gear (121) is provided on the shaft of the drive motor (12). A transmission gear (26) is provided on the disc (2) corresponding to the drive gear (121), and the transmission gear (26) meshes with the drive gear (121).

4. The multi-link laser cutting chuck according to claim 1, characterized in that: A first air chamber (221) is formed between the first sleeve (22) and the disc body (2) and the second sleeve (23), and a second air chamber (231) is formed between the second sleeve (23) and the disc body (2). The disc body (2) is provided with an air passage (27) for introducing gas corresponding to the first air chamber (221) and the second air chamber (231). Gas entering the first air chamber (221) can push the first sleeve (22), and gas entering the second air chamber (231) can push the second sleeve (23).

5. A multi-link laser cutting chuck according to claim 1, characterized in that: The first gripper (24) is provided with a plurality of gripper bodies (241), and a gripping roller is rotatably provided on the gripper body (241). The second gripper (25) is also provided with a plurality of identical gripper bodies (241). The gripper bodies (241) on the first gripper (24) and the gripper bodies (241) on the second gripper (25) are misaligned.

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