Cam distance self-adjusting clamping mechanism

Abstract

The utility model belongs to the technical field of clamping tools, and particularly relates to a cam distance self-adjusting clamping mechanism which comprises a mounting plate and a cam assembly. The device further comprises a transmission assembly and a clamping assembly, when the driving motor drives the rotating cam to rotate, the moving groove rotates along with the rotating cam, the transmission plate is arranged in the moving groove in a sliding mode, the transmission plate is arranged on the supporting roller through the rotating bearing, and the transmission plate moves with the supporting roller as the circle center; and the adjusting plate is in sliding connection with the clamping plate, so that the clamping plate is driven to perform sliding adjustment on the bottom plate. The two groups of cam assemblies fixedly arranged on the mounting plate can respectively drive the clamping assembly to move to finish clamping work, the transmission assembly is driven by rotating the movement grooves in the cams, so that the transmission assembly drives the clamping plate to drive the clamping plate, the movement stroke of the clamping plate is automatically adjusted, and the clamping efficiency is improved. Therefore, the use requirements of different products are met.

Description

Technical Field

[0001] This utility model belongs to the technical field of clamping tooling, and particularly relates to a cam self-adjusting distance clamping mechanism. Background Art

[0002] A clamping mechanism is a mechanical device used to grasp, hold, or manipulate objects. There are various types of clamping mechanisms, ranging from simple manual clamps to complex automated robotic arms, with a wide range of designs and applications. Some common clamping mechanisms include mechanical grippers, self-centering chucks, gear-driven manipulators, wedge mechanism manipulators, etc. These mechanisms can be classified into screw, cam, and linkage clamping mechanisms according to their working principles.

[0003] Among them, a cam can be defined as a machine part with a curved surface or groove. By using its swing or rotation, another component - the follower can be provided with a preset motion. Most of the path of the follower is restricted within a chute to obtain reciprocating motion. During its return stroke, sometimes it relies on its own weight, but for some mechanisms to obtain precise movement, a spring is often used as the return force, and some use guide grooves to make it move on a specific path.

[0004] In modern industrial production, clamping mechanisms play an important role in various equipment and machinery. Among them, fixing and positioning workpieces are important prerequisites for ensuring machining accuracy. Traditional clamping mechanisms usually cannot automatically adjust according to workpieces of different sizes and shapes, and manual adjustment of the clamping distance is required, resulting in cumbersome operation, low efficiency, and difficulty in achieving high-precision adjustment when adjusting the clamping distance. Content of the Utility Model

[0005] The purpose of this utility model is to provide a cam self-adjusting distance clamping mechanism, which can adapt to the clamping requirements of different workpieces through the cam assembly and the transmission assembly, increasing the versatility of the mechanism. It can automatically adjust the clamping force according to the change of workpiece size, ensuring the reliability and stability of clamping. The stable clamping force that can be provided avoids the displacement of the workpiece during the machining process, improving the safety of operation. At the same time, the cam and the motion groove can be customized according to the needs of users, providing a high degree of operation flexibility.

[0006] The technical solution adopted by this utility model is specifically as follows:

[0007] A cam self-adjusting distance clamping mechanism includes a mounting plate and a cam assembly. Two groups of cam assemblies are fixedly arranged on the mounting plate. The cam assembly includes a support frame fixedly connected to the mounting plate. A driving motor and a support roller are fixedly arranged on the support frame. The output end of the driving motor is fixedly connected to a rotating cam, and a motion groove is provided on the rotating cam;

[0008] It further includes a transmission component, the transmission component includes a transmission plate slidably disposed in the movement groove, and a rotating bearing fixedly disposed on the support roller, the transmission plate is fixedly connected to the rotating bearing, and an adjusting plate is slidably connected to the transmission plate;

[0009] A clamping component, the clamping component includes a bottom plate fixedly connected to the support frame, and a clamping plate slidably disposed at the output end of the adjusting plate, a slide rail is fixedly connected to the bottom plate, and a slider slidably connected to the slide rail is fixedly disposed on the clamping plate;

[0010] Wherein, when the driving motor drives the rotating cam to rotate, the movement groove will rotate accordingly. By slidably disposing the transmission plate in the movement groove and arranging the transmission plate on the support roller through the rotating bearing, the transmission plate will move around the support roller as the center, thereby driving the adjusting plate located on the transmission plate. Since the adjusting plate is slidably connected to the clamping plate, the clamping plate is driven to slide and adjust on the bottom plate.

[0011] Further, an installation hole is formed on the transmission plate, and the rotating bearing is installed in the installation hole.

[0012] Further, a rotating hole is further formed on the transmission plate, a sliding ring is rotatably connected in the rotating hole, and the sliding ring is slidably connected to the movement groove.

[0013] Further, an adjusting groove is further formed on the transmission plate, and the adjusting plate is slidably connected in the adjusting groove.

[0014] Further, the adjusting plate includes an adjusting motor fixedly disposed in the adjusting groove, and the output end of the adjusting motor is fixedly connected to the adjusting plate.

[0015] Further, a connection hole is formed on the adjusting plate, a sliding ring is rotatably connected in the connection hole, and the sliding ring is slidably connected to the clamping plate;

[0016] Wherein, a driving groove is formed on the clamping plate, and the sliding ring is slidably disposed in the driving groove.

[0017] The technical effects achieved by the present utility model are:

[0018] A cam self - adjusting distance clamping mechanism of the present utility model can improve the flexibility and adaptability of the clamping mechanism through a cam assembly. By changing the shape of the movement groove of the rotating cam, the moving distance and speed of the clamping plate can be adjusted, enabling it to adapt to workpieces of different sizes and shapes. Through motor drive and precise transmission, it can automatically adjust the clamping position and force according to different processing requirements without manual intervention. This not only improves the flexibility and efficiency of operation but also reduces errors and machine downtime caused by manual adjustment. At the same time, this clamping mechanism has a simple structure and strong durability, which can reduce maintenance costs.

[0019] A cam self - adjusting distance clamping mechanism of the present utility model optimizes the transmission of driving force and the smoothness of the clamping action through the cooperation of the cam assembly and the transmission assembly. It can effectively convert and transmit the power generated by the driving motor to achieve a more accurate and stable clamping effect. By rotating the movement groove on the cam, the clamping assembly can be driven through the transmission assembly to adjust the clamping force and position, ensuring the flexibility and accuracy of the operation and completing the clamping or loosening action of the workpiece. It can precisely control every detail of the clamping action to adapt to different processing requirements. This not only improves the adaptability of the machine but also greatly improves the working efficiency and the processing quality of the product, and also increases the value of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 is a schematic diagram of the partial structure of the present utility model;

[0022] Figure 3 is a sectional view of the partial structure of the present utility model;

[0023] Figure 4 is an exploded schematic diagram of the partial structure of the present utility model.

[0024] In the drawings, the list of components represented by each reference numeral is as follows:

[0025] 10. mounting plate; 20. cam assembly; 21. support frame; 22. driving motor; 23. support roller; 24. rotating cam; 241. movement groove; 30. transmission assembly; 31. transmission plate; 311. mounting hole; 312. rotating hole; 313. adjustment groove; 32. rotating bearing; 33. adjustment plate; 331. adjustment motor; 332. connection hole; 34. sliding ring; 40. clamping assembly; 41. bottom plate; 411. slide rail; 42. clamping plate; 421. slider; 422. driving groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the purpose and advantages of the present utility model more clear and understandable, the following specific description of the present utility model is made in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility model, and does not strictly limit the scope of protection of the specific claims of the present utility model.

[0027] As Figures 1-4 shown, a cam self-adjusting distance clamping mechanism includes a mounting plate 10 and a cam assembly 20. Two groups of cam assemblies 20 are fixedly arranged on the mounting plate 10. The cam assembly 20 includes a support frame 21 fixedly connected to the mounting plate 10. A driving motor 22 and a support roller 23 are fixedly arranged on the support frame 21. The output end of the driving motor 22 is fixedly connected with a rotating cam 24, and a motion groove 241 is formed in the rotating cam 24;

[0028] It further includes a transmission assembly 30. The transmission assembly 30 includes a transmission plate 31 slidably arranged in the motion groove 241, and a rotating bearing 32 fixedly arranged on the support roller 23. The transmission plate 31 is fixedly connected with the rotating bearing 32, and an adjusting plate 33 is slidably connected to the transmission plate 31;

[0029] A clamping assembly 40 includes a bottom plate 41 fixedly connected to the support frame 21, and a clamping plate 42 slidably arranged at the output end of the adjusting plate 33. A slide rail 411 is fixedly connected to the bottom plate 41, and a slider 421 slidably connected to the slide rail 411 is fixedly arranged on the clamping plate 42.

[0030] It should be noted that control modules are respectively arranged for the driving motors 22 on the cam assemblies 20. The cam assemblies 20 can respectively drive the clamping plates 42 on the clamping assembly 40, or can simultaneously control the clamping plates 42 to perform clamping movements according to the usage requirements.

[0031] In this embodiment, the mounting plate 10 serves as the basic support component of the entire mechanism and can also connect the clamping mechanism to the production line. By fixedly arranging two sets of cam assemblies 20 on the mounting plate 10, the clamping assemblies 40 can be driven to move respectively. Among them, the cam assembly 20 includes a support frame 21, which is used to support the rotating cam 24 and the clamping tooling, and can also ensure that the rotating cam 24 and the clamping tooling are in the correct positions during installation. Specifically, a driving motor 22 and a support roller 23 are fixedly installed on the support frame 21, which is the power source of the cam assembly 20 and is used to drive the rotating cam 24 to rotate. By opening a motion groove 241 on the rotating cam 24 for connecting the transmission assembly 30, the transmission assembly 30 can be driven to move, which is the main part for realizing the automatic distance adjustment of the clamping mechanism. The support roller 23 is used to support the transmission assembly 30, enabling the transmission assembly 30 to perform a circular motion along the support roller 23. The transmission assembly 30 is used to convert the driving force generated by the cam assembly 20 into a clamping force that can drive the clamping plate 42 in the clamping assembly 40 to perform the clamping work. At the same time, the motion groove 241 on the rotating cam 24 in the cam assembly 20 can drive the clamping plate 42 to realize automatic distance adjustment. Among them, the transmission assembly 30 includes a transmission plate 31 and a rotating bearing 32. By arranging the transmission plate 31 in the motion groove 241 of the rotating cam 24 and installing the rotating bearing 32 inside the transmission plate 31 and sleeving the rotating bearing 32 on the support roller 23, it is ensured that the transmission plate 31 can slide smoothly in the motion groove 241 and perform a circular motion with the support roller 23 as the center. Among them, the adjusting plate 33 is slidably connected to the transmission plate 31 and is used to transfer the driving force generated by the transmission plate 31 to the clamping assembly 40. The clamping assembly 40 is used to grasp the product and can manipulate the product. Among them, the clamping assembly 40 includes a bottom plate 41 and a clamping plate 42. The bottom plate 41 is fixedly connected to the support frame 21, and a slide rail 411 is provided on the bottom plate 41 to ensure the movement path of the clamping plate 42. The clamping plate 42 is slidably arranged at the output end of the adjusting plate 33 and is fixedly connected with a slider 421 that cooperates with the slide rail 411, and can drive the clamping plate 42 to move along the path of the slide rail 411 on the bottom plate 41 through the adjusting plate 33 to complete the clamping work. Specifically, when the driving motor 22 is started to drive the rotating cam 24 to rotate, the shape change of the motion groove 241 will, through the cooperation of the transmission plate 31 and the adjusting plate 33, push the clamping plate 42 to move along the slide rail 411 of the bottom plate 41 to realize the clamping or loosening of the workpiece.

[0032] Such as Figure 2 , Figure 3As shown in the figure, mounting holes 311 and rotation holes 312 are provided on the drive plate 31. Among them, the mounting hole 311 is used to mount the rotating bearing 32, ensuring that the drive plate 31 can rotate smoothly on the support roller 23, so that the drive plate 31 can drive the clamping assembly 40 to achieve automatic adjustment smoothly under the guidance of the movement groove 241. Among them, the rotation hole 312 is used for rotatably connecting the sliding ring 34. By slidingly connecting the sliding ring 34 with the movement groove 241, the sliding ring 34 can convert the curve change of the movement groove 241 into a linear change, and then the drive plate 31 drives the adjustment plate 33 to drive the clamping assembly 40. Specifically, an adjustment groove 313 is also provided on the drive plate 31 for placing the adjustment plate 33 and guiding the adjustment plate 33 to move in a specified direction, so as to achieve fine adjustment of the clamping force.

[0033] As Figure 3 , Figure 4 shown in the figure, the adjustment plate 33 includes an adjustment motor 331 fixedly arranged in the adjustment groove 313. By fixedly connecting the output end of the adjustment motor 331 to the adjustment plate 33, the adjustment plate 33 can be directly controlled by the adjustment motor 331 to move, so as to finely adjust the position of the clamping plate 42, which can further improve the applicability of the clamping assembly 40 and enable the clamping mechanism to adapt to products of different sizes and shapes. Preferably, by providing a connection hole 332 on the adjustment plate 33, a sliding ring 34 is rotatably connected in the connection hole 332, and the sliding ring 34 is slidably connected to the clamping plate 42, so that when the clamping plate 42 is subjected to an external force, it can move smoothly along a predetermined path, ensuring the stability and reliability of the clamping process. Among them, by providing a drive groove 422 on the clamping plate 42 for placing the sliding ring 34, the force transmission and the smoothness of the clamping action are further optimized, the power generated by the drive motor 22 can be effectively converted, and a more accurate and stable clamping effect can be achieved.

[0034] The working principle of the utility model is as follows: the clamping mechanism is installed on the production line through the mounting plate 10, and the driving motor 22 in the control cam assembly 20 is started, which will drive the rotating cam 24 located at its output end to rotate, and then drive the motion groove 241 on the rotating cam 24 to rotate. Among them, the transmission plate 31 in the transmission assembly 30 is slidably arranged in the motion groove 241 through the sliding ring 34, because the transmission plate 31 is sleeved on the support roller 23 through the rotating bearing 32. When the driving motor 22 drives the motion groove 241 to rotate, the transmission plate 31 is driven to move through the sliding ring 34, and due to the arrangement of the support roller 23 and the rotating bearing 32, it will rotate in a circle around the support roller 23. It will drive the adjustment plate 33 slidably arranged on the transmission plate 31 to move, and because the adjustment plate 33 is slidably connected with the clamping plate 42 in the clamping assembly 40 through the sliding ring 34, the clamping plate 42 will be driven to move. The clamping plate 42 is slidably connected to the slide rail 411 on the bottom plate 41 through the slider 421, so that the clamping plate 42 moves along the slide. The transmission assembly 30 is connected to the cam assembly 20 and the clamping assembly 40, so that the clamping assembly 40 can be driven to automatically adjust the clamping distance.

[0035] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be regarded as the protection scope of this utility model. The structures, devices and operating methods not specifically described and explained in this utility model shall be implemented according to the conventional means in this field unless otherwise specified and limited.

Claims

1. A cam self-adjusting distance clamping mechanism, characterized in that: The invention comprises a mounting plate (10) and a cam assembly (20), wherein two groups of cam assemblies (20) are fixedly arranged on the mounting plate (10), wherein the cam assembly (20) comprises a support frame (21) fixedly connected to the mounting plate (10), wherein a driving motor (22) and a supporting roller (23) are fixedly arranged on the support frame (21), wherein a rotating cam (24) is fixedly connected to the output end of the driving motor (22), and a moving groove (241) is provided on the rotating cam (24); The invention also comprises a transmission assembly (30), wherein the transmission assembly (30) comprises a transmission plate (31) slidably arranged in the movement groove (241), and a rotation bearing (32) fixedly arranged on the support roller (23), wherein the transmission plate (31) is fixedly connected to the rotation bearing (32), and an adjustment plate (33) is slidably connected to the transmission plate (31); A clamping assembly (40), the clamping assembly (40) comprising a base plate (41) fixedly connected to the support frame (21), and a clamping plate (42) slidably arranged at the output end of the adjustment plate (33), the base plate (41) being fixedly connected to a slide rail (411), and the clamping plate (42) being fixedly provided with a slider (421) slidably connected to the slide rail (411); When the driving motor (22) drives the rotating cam (24) to rotate, the moving groove (241) will rotate accordingly. By sliding the transmission plate (31) in the moving groove (241), and the transmission plate (31) is arranged on the supporting roller (23) through the rotating bearing (32), the transmission plate (31) will move with the supporting roller (23) as the center of the circle, thereby driving the adjustment plate (33) located on the transmission plate (31), and the adjustment plate (33) is slidably connected with the clamping plate (42), thereby driving the clamping plate (42) to slide and adjust on the bottom plate (41).

2. The cam self-adjusting clamping mechanism according to claim 1, characterized in that: The transmission plate (31) is provided with a mounting hole (311), and the rotary bearing (32) is mounted in the mounting hole (311).

3. The cam self-adjusting clamping mechanism according to claim 2, characterized in that: The transmission plate (31) is also provided with a rotation hole (312), a sliding ring (34) is rotatably connected in the rotation hole (312), and the sliding ring (34) is slidably connected to the motion groove (241).

4. The cam self-adjusting distance clamping mechanism according to claim 3, characterized in that: The transmission plate (31) is also provided with an adjustment groove (313), and the adjustment plate (33) is slidably connected in the adjustment groove (313).

5. The cam self-adjusting distance clamping mechanism according to claim 4, characterized in that: The adjustment plate (33) comprises an adjustment motor (331) fixedly arranged in the adjustment slot (313); an output end of the adjustment motor (331) is fixedly connected to the adjustment plate (33).

6. The cam self-adjusting distance clamping mechanism according to claim 5, characterized in that: The adjusting plate (33) is provided with a connecting hole (332), the sliding ring (34) is rotatably connected in the connecting hole (332), and the sliding ring (34) is slidably connected to the clamping plate (42); The clamping plate (42) is provided with a driving groove (422), and the sliding ring (34) is slidably arranged in the driving groove (422).

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