Clamping device
Through the combined design of the substrate, compression assembly and pneumatic jaw mechanism, the problem of stable clamping of the clamping device for the inner diameter of the tapered ring is solved, and efficient and stable workpiece handling and automated control is achieved, reducing costs.
Patent Information
- Application Number
- CN202422377089.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing clamping device is difficult to firmly clamp and carry annular workpieces with tapered inner diameters, and there is a problem of insufficient clamping firmness and easy to fall off, especially in the processing of non-standard shape workpieces.
Using a clamping device including a substrate, a compression assembly and a pneumatic jaw mechanism, the workpiece is pressed through the pressing ring of the compression assembly and provided positioning for the pneumatic jaw mechanism. The pneumatic jaw mechanism penetrates into the inner clamping of the workpiece, and combines the design of multiple connectors and nylon blocks to achieve stable clamping and handling.
It improves the stability and handling efficiency of workpiece clipping, reduces manual operation, adapts to the adjustment of workpieces of different sizes and shapes, facilitates automated control, and reduces costs.
Smart Images
Figure CN223060133U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of workpiece clamping devices, and particularly to a clamping device. Background Art
[0002] In industrial automated production lines, in order to improve production efficiency and precision, various automated devices have been widely used, especially in the workpiece clamping and handling processes. With the continuous progress of the manufacturing industry, the processing demand for non-standard shaped workpieces is increasing day by day, which poses new challenges to automated clamping devices. Especially when dealing with workpieces that are circular rings with a tapered inner diameter, not only high clamping stability is required, but also the safety and precision during the handling process need to be ensured, making such workpieces one of the difficulties in industrial automation.
[0003] Regarding the clamping problem of workpieces that are circular rings with a tapered inner diameter, traditional solutions include manual operation and complex mechanical structures. Currently, manual intervention is still a common solution, but due to relying on human labor, this operation method is inefficient and prone to errors. Another more common method is to use a multi-axis linkage robotic arm with a special fixture to achieve clamping. Although this method can meet the clamping requirements to a certain extent, its cost is high, and it also has high requirements for the operating environment and the skills of the operator.
[0004] Despite various attempts to ensure clamping stability, existing clamping devices still have problems such as insufficient clamping firmness and easy detachment when facing circular ring workpieces with a tapered inner diameter, and a new technical solution is urgently needed to overcome these problems. Summary of the Utility Model
[0005] In order to firmly and stably clamp and handle workpieces, the present utility model provides a clamping device.
[0006] The clamping device provided by the present utility model adopts the following technical solution:
[0007] A clamping device includes a base plate, a pressing component, and a pneumatic gripper mechanism. The base plate is connected to a robotic arm. The pressing component includes a connecting piece and a pressing ring. The top of the connecting piece is connected to the base plate, and the bottom of the connecting piece is connected to the pressing ring. The pressing ring is used for pressing. The top of the pneumatic gripper mechanism is connected to the base plate, and the bottom passes through the pressing ring and can extend into the workpiece to clamp the workpiece.
[0008] By adopting the above technical solution, during use, the robotic arm makes the pressing component approach the workpiece through the substrate until the pressing ring abuts against the workpiece. The pressing ring can press the workpiece to maintain the stability of the workpiece, and at the same time can provide positioning for the pneumatic gripper mechanism, facilitating the bottom of the pneumatic gripper mechanism to pass through the pressing ring and extend into the interior of the workpiece. Then start the pneumatic gripper mechanism to clamp the workpiece, realizing the firm and stable clamping and handling of the annular workpiece, improving the work efficiency and reducing the need for manual operation.
[0009] Preferably, the connecting member includes a screw rod, a cylinder body and an adjusting block. The top end of the screw rod is connected to the substrate, and the bottom end is inserted into the cylinder body. The cylinder body is connected to the pressing ring. The adjusting block is rotatably connected to the cylinder body. The adjusting block is sleeved on the screw rod and is threadedly connected to the screw rod.
[0010] By adopting the above technical solution, rotating the adjusting block can adjust the length of the screw rod extending out of the cylinder body, thereby realizing the flexible adjustment of the position of the pressing ring to adapt to workpieces of different sizes and shapes, improving the application range and adjustment convenience of the clamping device. And if the height of the workpiece increases, the height between the pressing ring and the substrate needs to be reduced; if the height of the workpiece becomes smaller, the height between the pressing ring and the substrate needs to be increased.
[0011] Preferably, a plurality of the connecting members are provided and are circumferentially spaced apart along the pressing ring.
[0012] By adopting the above technical solution, a plurality of connecting members in the pressing component are provided and are circumferentially spaced apart along the pressing ring, which can apply a more uniform pressing force to the workpiece, ensuring the stability and balance of the workpiece during the clamping process.
[0013] Preferably, the bottom of the pressing ring is chamfered.
[0014] By adopting the above technical solution, the chamfered bottom of the pressing ring helps to more smoothly contact the upper surface of the workpiece when clamping the annular workpiece, reducing the damage to the workpiece during clamping, and improving the clamping stability and accuracy.
[0015] Preferably, a nylon block is connected to the side wall of the claw of the pneumatic gripper mechanism close to the workpiece.
[0016] By adopting the above technical solution, the nylon cushion block has good elasticity and toughness, and can play a role in buffering and shock absorption during the mechanical assembly process, thereby reducing the possibility of damage to the workpiece when clamping it, and improving the clamping stability and the integrity rate of the workpiece.
[0017] Preferably, a placement groove is formed in the side wall of the claw close to the workpiece, and the nylon block is arranged in the placement groove and protrudes from the side wall of the claw.
[0018] By adopting the above technical solution, the contact area between the nylon block and the claw is increased, making the connection of the nylon block more firm and stable.
[0019] Preferably, the nylon block is fixed to the claw by bolts.
[0020] By adopting the above technical solution, the bolts enable the nylon block to be stably installed on the claw, improving the stability and reliability when gripping the workpiece and reducing the possibility of the workpiece slipping during handling. At the same time, it facilitates the maintenance and replacement of the nylon block.
[0021] Preferably, the bottom of the pressure ring is higher than the nylon block.
[0022] By adopting the above technical solution, when gripping the workpiece, the nylon block can be close to the middle of the workpiece for gripping under the condition that the pressure ring presses the workpiece, improving the stability and safety of the workpiece during handling.
[0023] Preferably, the pneumatic claw mechanism is configured to expand three claws to grip the workpiece.
[0024] By adopting the above technical solution, expanding three claws to grip the workpiece makes the clamping force evenly distributed during the gripping process, improving the stability and reliability of the gripping.
[0025] In summary, the utility model has the following beneficial effects:
[0026] 1. During use, the robotic arm makes the pressing component approach the workpiece through the substrate until the pressure ring abuts against the workpiece. The pressure ring can press the workpiece to keep it stable, and at the same time can provide positioning for the pneumatic claw mechanism, facilitating the bottom of the pneumatic claw mechanism to pass through the pressure ring and extend into the interior of the workpiece. Then start the pneumatic claw mechanism to grip the workpiece, realizing the firm and stable gripping and handling of the annular workpiece, improving the work efficiency and reducing the need for manual operation.
[0027] 2. The use of the connecting piece can adjust the height of the pressure ring, thereby realizing the gripping of workpieces with different specifications of tapered inner diameters. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 is an overall structural schematic diagram of a gripping device.
[0029] Figure 2 is a side view of a gripping device.
[0030] DESCRIPTION OF THE REFERENCE NUMERALS:
[0031] 1. Substrate; 2. Pneumatic claw mechanism; 21. Claw; 211. Placing groove; 3. Nylon block; 4. Connecting piece; 41. Screw; 42. Cylinder; 43. Adjusting block; 5. Pressure ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0032] To enable those skilled in the art to better understand the technical solutions in this specification, the following will clearly and completely describe the technical solutions in the embodiments of this specification in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments.
[0033] In the description of the embodiments of this application, words such as "for example" or "for illustration" are used to give examples, illustrations or explanations. Any embodiment or design solution described as "for example" or "for illustration" in the embodiments of this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "for example" or "for illustration" is intended to present relevant concepts in a specific manner.
[0034] In the description of the embodiments of this application, the meaning of the term "plurality" refers to two or more. For example, a plurality of systems refers to two or more systems, and a plurality of screen terminals refers to two or more screen terminals. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the technical features indicated. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The terms "include", "comprise", "have" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways.
[0035] A clamping device, referring to Figure 1 , includes a substrate 1, a pressing component and a pneumatic gripper mechanism 2. The substrate 1 is fixedly connected to the robotic arm. The pressing component includes a connecting member 4 and a pressing ring 5. The top of the connecting member 4 is connected to the substrate 1, and the bottom of the connecting member 4 is connected to the pressing ring 5. The pressing ring 5 is used to press the workpiece. The top of the pneumatic gripper mechanism 2 is connected to the substrate 1 and the bottom passes through the pressing ring 5, and can extend into the workpiece and clamp the workpiece.
[0036] During use, the robotic arm makes the pressing component approach the workpiece through the substrate 1 until the pressing ring 5 abuts against the workpiece. The pressing ring 5 can press the workpiece to keep the workpiece stable, and at the same time can provide positioning for the pneumatic gripper mechanism 2, facilitating the bottom of the pneumatic gripper mechanism 2 to pass through the pressing ring 5 and extend into the workpiece. Then start the pneumatic gripper mechanism 2 to clamp the workpiece, realizing firm and stable clamping and handling of the annular workpiece, improving work efficiency and reducing the need for manual operation.
[0037] Referring to Figure 2 , the pneumatic gripper mechanism 2 is configured to expand and clamp the workpiece with three claws 21. The pneumatic gripper mechanism 2 is electrically connected to a control module, and the control module is electrically connected to the robotic arm.
[0038] The control module coordinates the actions of the claw 21 mechanism and the robotic arm to achieve the function of automatically controlling the clamping and handling of annular workpieces, improving efficiency and saving labor.
[0039] Referring to Figure 1 , a placement groove 211 is provided on the side wall of the claw 21 close to the workpiece, and the placement groove 211 is located at the bottom of the claw 21. A nylon block 3 is provided in the placement groove 211. The nylon block 3 matches the placement groove 211, and the nylon block 3 protrudes from the side wall of the claw 21. The nylon block 3 is fixedly connected to the claw 21 by bolts.
[0040] The bolts enable the nylon block 3 to be stably installed on the claw 21, improving the stability and reliability during workpiece clamping, and reducing the possibility of the workpiece slipping during handling. At the same time, it facilitates the maintenance and replacement of the nylon block 3.
[0041] Referring to Figure 1 , a plurality of connecting members 4 are provided. In this embodiment, three connecting members 4 are provided, and the three connecting members 4 are axially spaced along the pressing ring 5. A pressing force is uniformly applied to the workpiece to ensure the stability and balance of the workpiece during the clamping process.
[0042] Referring to Figure 1 , the connecting member 4 includes a screw rod 41, a cylinder body 42, and an adjusting block 43. The screw rod 41 is vertically arranged, the top of the screw rod 41 is fixedly connected to the bottom of the substrate 1, and the bottom is inserted into the cylinder body 42. The cylinder body 42 is vertically arranged, and the bottom of the cylinder body 42 is fixedly connected to the top of the pressing ring 5. The adjusting block 43 is rotatably connected to the top of the cylinder body 42. The adjusting block 43 is sleeved on the screw rod 41 and is threadedly connected to the screw rod 41. The cross-section of the adjusting block 43 is polygonal, which is convenient for the rotation of the adjusting block 43. In this embodiment, a hexagon is adopted.
[0043] By rotating the adjusting block 43, the length of the screw rod 41 extending out of the cylinder body 42 can be adjusted, thereby realizing the flexible adjustment of the position of the pressing ring 5 to adapt to workpieces of different sizes and shapes, improving the application range and adjustment convenience of the clamping device.
[0044] Referring to Figure 1 , the pressing ring 5 is a horizontally placed circular ring structure. The bottom of the pressing ring 5 is chamfered, which helps to more smoothly contact the upper surface of the workpiece when clamping the annular workpiece, reducing damage to the workpiece during clamping.
[0045] Referring to Figure 2 , the bottom of the pressing ring 5 is higher than the nylon block 3. When clamping the workpiece, the nylon block 3 can be close to the middle of the workpiece for clamping under the condition that the pressing ring 5 presses the workpiece, improving the stability and safety of the workpiece during handling.
[0046] The working principle of this application is as follows: Before clamping the workpiece, rotate the adjusting block 43 respectively according to the specifications of the workpiece to make the screw rod 41 extend out of the cylinder body 42 to an appropriate height.
[0047] When gripping a workpiece, the robotic arm makes the pressing assembly approach the workpiece through the substrate 1 until the pressing ring 5 abuts against the workpiece. The pressing ring 5 can press the workpiece. At this time, the bottom of the pneumatic gripper mechanism 2 passes through the pressing ring 5 and extends into the interior of the workpiece. Then, start the cylinder of the pneumatic gripper mechanism 2 to make the claws 21 grip the workpiece. The nylon blocks 3 on the claws 21 abut against the inner side wall of the workpiece, realizing a firm and stable grip of the annular workpiece. Moreover, the movement of the robotic arm to carry the workpiece improves the work efficiency and reduces the need for manual operation.
[0048] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.
Claims
1. A clamping device, characterized in that: It includes a substrate (1), a pressing component, and a pneumatic gripper mechanism (2). The substrate (1) is connected to a robotic arm. The pressing component includes a connecting piece (4) and a pressing ring (5). The top of the connecting piece (4) is connected to the substrate (1), and the bottom of the connecting piece (4) is connected to the pressing ring (5). The pressing ring (5) is used for pressing. The top of the pneumatic gripper mechanism (2) is connected to the substrate (1), and the bottom passes through the pressing ring (5) and can extend into the workpiece to clamp the workpiece.
2. The clamping device according to claim 1, characterized in that: The connecting piece (4) includes a screw (41), a cylinder (42), and an adjusting block (43). The top of the screw (41) is connected to the substrate (1), and the bottom is inserted into the cylinder (42). The cylinder (42) is connected to the pressing ring (5). The adjusting block (43) is rotatably connected to the cylinder (42). The adjusting block (43) is sleeved on the screw (41) and is threadedly connected to the screw (41).
3. The clamping device according to claim 1 or 2, characterized in that: A plurality of the connecting pieces (4) are provided and are circumferentially spaced along the pressing ring (5).
4. The clamping device according to claim 1, wherein: The bottom of the pressing ring (5) is chamfered.
5. The clamping device according to claim 1, characterized in that: A nylon block (3) is connected to the side wall of the claw (21) of the pneumatic gripper mechanism (2) close to the workpiece.
6. The picking device according to claim 5, wherein: A placement groove (211) is formed in the side wall of the claw (21) close to the workpiece. The nylon block (3) is arranged in the placement groove (211) and protrudes from the side wall of the claw (21).
7. A clamping device according to claim 5 or 6, characterized in that: The nylon block (3) is fixed to the claw (21) by bolts.
8. The clamping device according to claim 5, wherein: The bottom of the pressing ring (5) is higher than the nylon block (3).
9. The gripping device according to claim 1, characterized in that: The pneumatic gripper mechanism (2) is configured to clamp the workpiece by expanding three claws (21).