A flexible quick change device

Abstract

The application relates to the technical field of quick-change devices, in particular to a flexible quick-change device which comprises a quick-change disc body and a tool disc, the quick-change disc body is provided with a first cavity, a pneumatic ejector rod is slidably arranged in the first cavity, a hole is formed in the upper portion of the pneumatic ejector rod, a buffer assembly is fixedly arranged in the through hole, a steel ball is rotatably arranged at the lower portion of the quick-change disc body, a second cavity is arranged in the middle portion of the tool disc, and a buffer gasket is fixedly arranged on the inner wall of the second cavity in the circumferential direction; the buffer assembly arranged in the pneumatic ejector rod can effectively reduce the abrasion of the contact position of the pneumatic ejector rod and the quick-change disc body and avoid loosening of the connecting position during the frequent connection-disconnection-connection process of the quick-change device, reduce the rigid impact of the contact position of the pneumatic ejector rod and the quick-change disc body, effectively slow down the instantaneous impact force caused by the pneumatic pressure, and ensure the air tightness of the whole quick-change device.

Description

Technical Field

[0001] This application relates to the field of quick-change device technology, and in particular to a flexible quick-change device. Background Technology

[0002] A quick-change device is a flexible connection tool used in the industrial robot industry for end effectors. Its main function is to quickly and accurately change the tool at the robot's end effector. This device enables robots to rapidly switch tools between different tasks or production stages, thereby improving production efficiency and flexibility.

[0003] Chinese utility model patent application number 202121783663.7—Quick tool exchange device for robot gripper—comprises a robot body, tool, pneumatic piston, steel ball, groove, cavity, lead screw, turntable, slide, limit block, movable block, push rod, limit groove, sealing cavity, piston, suction cup, female connector and male connector. This utility model, by setting up the limit block, push rod, steel ball, and limit groove, with the limit block and limit groove working together, further secures the robot body and tool, preventing misalignment and ensuring the device's working effect.

[0004] In the aforementioned patents and existing technologies, because the quick-change device needs to be connected frequently, the pneumatic piston is in direct contact with the robot and the tool, and the rigidity of the contact surface is relatively large. The instantaneous impact force caused by the pneumatic drive is very large, which will cause wear on the contact parts, or even cause serious impact damage, thereby affecting the airtightness of the overall device, resulting in insufficient air pressure causing a decrease in load-bearing capacity or direct functional failure. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a flexible quick-change device. The technical problem it addresses is that the contact coupling parts in existing quick-change devices are easily worn or even damaged by aerodynamic impact, affecting the overall airtightness of the device. To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A flexible quick-change device includes a quick-change disc body and a tool disc. The quick-change disc body is provided with a first cavity, and a pneumatic push rod is slidably arranged in the first cavity. A hole is opened on the upper part of the pneumatic push rod, and a buffer component is fixedly arranged in the through hole. A steel ball is rotatably arranged on the lower part of the quick-change disc body. A second cavity is provided in the middle of the tool disc, and a buffer pad is fixedly arranged on the inner wall of the second cavity along its circumference.

[0007] Furthermore, the buffer assembly includes a first buffer block and a second buffer block, both of which are fixedly connected to a pneumatic push rod, and the first buffer block and the second buffer block are arranged in a vertically parallel state.

[0008] Furthermore, both the first and second buffer blocks are T-shaped, with the vertical portions of the first and second buffer blocks completely located within the holes of the pneumatic push rod.

[0009] Furthermore, the buffer pad is fixedly installed at the contact surface between the steel ball and the inner wall of the tool tray, and the steel ball and the buffer pad are in contact and connected.

[0010] Furthermore, a top cover is fixedly installed on the upper surface of the quick-change disc body.

[0011] Furthermore, the first buffer block, the second buffer block, and the buffer pad are all made of flexible rubber.

[0012] The beneficial effects of this utility model are: by setting a buffer component in the pneumatic push rod, the wear of the contact part between the pneumatic push rod and the quick-change disc body can be effectively reduced and the loosening of the connection part can be avoided during the frequent connection-disconnection-connection process of the quick-change device. This reduces the rigid impact of the contact part between the pneumatic push rod and the quick-change disc body, effectively mitigates the instantaneous impact force caused by pneumatics, and ensures the airtightness of the entire quick-change device. Attached Figure Description

[0013] Figure 1 This is a cross-sectional schematic diagram of the quick-change device connection of this utility model.

[0014] Figure 2 This is a cross-sectional schematic diagram of the quick-change device of this utility model when disconnected.

[0015] Figure 3 This is a three-dimensional structural diagram of the quick-change device of this utility model.

[0016] In the picture:

[0017] 1. Quick-change disc body, 2. Tool disc, 3. First cavity, 4. Pneumatic push rod, 5. Hole, 6. Buffer assembly, 61. First buffer block, 62. Second buffer block, 7. Steel ball, 8. Second cavity, 9. Buffer pad, 10. Top cover. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the utility model will now be described in further detail with reference to the accompanying drawings and the following embodiments, so that the public can better understand the implementation method of this utility model. The specific implementation scheme of this utility model is as follows:

[0019] like Figure 1As shown, a flexible quick-change device includes a quick-change disc body 1 and a tool disc 2. The quick-change disc body 1 is provided with a first cavity 3, and a pneumatic push rod 4 is slidably arranged in the first cavity 3. A hole 5 is opened on the upper part of the pneumatic push rod 4, and a buffer component 6 is fixedly arranged in the through hole 5. A steel ball 7 is rotatably arranged on the lower part of the quick-change disc body 1. A second cavity 8 is provided in the middle of the tool disc 2, and a buffer pad 9 is fixedly arranged on the inner wall of the second cavity 8 along its circumference. By setting the buffer component 6 in the pneumatic push rod 4, the wear of the contact part between the pneumatic push rod 4 and the quick-change disc body can be effectively reduced and the loosening of the connection part can be avoided during the frequent connection-disconnection-connection process of the quick-change device. The rigid impact of the contact part between the pneumatic push rod 4 and the quick-change disc body 1 can be reduced, the instantaneous impact force caused by pneumatics can be effectively mitigated, and the airtightness of the entire quick-change device can be guaranteed.

[0020] It should be noted that, as Figure 1-2 As shown, the buffer assembly 6 includes a first buffer block 61 and a second buffer block 62. Both the first buffer block 61 and the second buffer block 62 are fixedly connected to the pneumatic push rod 4. The first buffer block 61 and the second buffer block 62 are arranged in a vertically parallel state. When the quick-change device is disconnected, the push rod will move rapidly towards the top cover 10 under the impact of air pressure. The first buffer block 61 plays a buffering role when the upper end face of the pneumatic push rod 4 contacts the top cover 10, avoiding wear and impact damage caused by rigid impact at the contact point between the pneumatic push rod 4 and the top cover 10. When the device is connected, the pneumatic push rod 4 will move rapidly towards the tool disk 2 under the impact of air pressure. The second buffer block 62 plays a buffering role at the cross section where the pneumatic push rod 4 contacts the quick-change disk body 1, avoiding the wear caused by the rigid impact of the contact part between the pneumatic push rod 4 and the quick-change disk body 1 on the end face of the pneumatic push rod 4 and the quick-change disk body 1. The first buffer block 61 and the second buffer block 62 provide buffer for the contact part of the structure, reduce the rigidity of the contact surface, effectively reduce the instantaneous impact force caused by pneumatics, and ensure the airtightness of the entire quick-change device.

[0021] Furthermore, both the first buffer block 61 and the second buffer block 62 are T-shaped, and the vertical parts of the first buffer block 61 and the second buffer block 62 are completely located inside the hole 5 of the pneumatic push rod 4; this structure further ensures that the first buffer block 61 and the second buffer block 62 achieve effective buffering.

[0022] It should be noted that, as Figure 1 As shown, the buffer pad 9 is fixedly installed at the contact surface between the steel ball 7 and the inner wall of the tool disk 2, and the steel ball 7 is in contact with the buffer pad 9. During the connection of the quick-change device, the buffer pad 9 provides a buffering effect for the contact part between the steel ball 7 and the inner wall of the tool disk 2, reduces the pneumatic impact force, avoids wear caused by rigid impact between the steel ball 7 and the inner wall of the tool disk 2, and further ensures the overall airtightness of the quick-change device.

[0023] It should be noted that a top cover 10 is fixedly installed on the upper surface of the quick-change disc body 1.

[0024] It should be noted that the first buffer block 61, the second buffer block 62, and the buffer pad are all made of flexible rubber. The first buffer block 61 and the second buffer block 62, which are made of flexible rubber, can provide better cushioning performance.

[0025] The working principle and process of this utility model are as follows:

[0026] When the quick-change device is disconnected: the quick-change disc body 1 is disconnected from the tool disc 2, and the push rod moves towards the top cover 10 under the impact of air pressure. The first buffer block 61 directly contacts the inner end face of the top cover 10. When the quick-change device is connected: the quick-change disc body 1 is connected to the tool disc 2, the pneumatic push rod 4 is at the bottom of the first cavity 3 of the quick-change disc body 1, the second buffer block 62 directly contacts the end face of the quick-change disc body 1, and the steel ball 7 directly contacts the buffer pad 9 on the inner wall of the tool disc 2, so as to avoid wear and damage to the contact parts of the quick-change device caused by air pressure impact.

[0027] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "front," "rear," "lower left," "upper right," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Although this utility model has been described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments can be conceived within the scope of this utility model described herein.

Claims

1. A flexible quick change device comprising a quick change disc body (1), a tool disc (2), characterized in that, The quick-change disc body (1) is provided with a first cavity (3), a pneumatic push rod (4) is slidably provided in the first cavity (3), a hole (5) is opened on the upper part of the pneumatic push rod (4), a buffer assembly (6) is fixedly provided in the through hole (5), a steel ball (7) is rotatably provided on the lower part of the quick-change disc body (1), a second cavity (8) is provided in the middle of the tool disc (2), and a buffer pad (9) is fixedly provided on the inner wall of the second cavity (8) along its circumference.

2. The flexible quick change device of claim 1, wherein: The buffer assembly (6) includes a first buffer block (61) and a second buffer block (62). Both the first buffer block (61) and the second buffer block (62) are fixedly connected to the pneumatic push rod (4). The first buffer block (61) and the second buffer block (62) are arranged in a vertically parallel state.

3. The flexible quick change device of claim 2, wherein: The first buffer block (61) and the second buffer block (62) are both T-shaped, and the vertical parts of the first buffer block (61) and the second buffer block (62) are completely located in the hole (5) of the pneumatic push rod (4).

4. The flexible quick change device of claim 1, wherein: The buffer pad (9) is fixedly installed at the contact surface between the steel ball (7) and the inner wall of the tool disk (2), and the steel ball (7) is in contact with the buffer pad (9).

5. The flexible quick change device of claim 1, wherein: A top cover (10) is fixedly installed on the upper surface of the quick-change disc body (1).

6. The flexible quick change device of claim 2, wherein: The first buffer block (61), the second buffer block (62), and the buffer pad are all made of flexible rubber.

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