Grinding consumable quick-change connector
Through the innovative design of the quick-change connector for grinding consumables, and by utilizing the spring-loaded ball bearing structure and polygonal rotation limit surface, the rapid clamping and high-precision machining of grinding consumables are achieved. This solves the problems of cumbersome operation and insufficient rigidity in traditional clamping methods, and improves the efficiency and maintainability of the robot system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 大儒科技(苏州)有限公司
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional grinding consumable clamping methods are cumbersome, time-consuming, difficult to ensure centering, and lack sufficient connection rigidity, which affects the robot's working efficiency and accuracy.
The design employs a mating design between the insertion part and the inserted part, utilizing a radial clamping device with a spring-loaded ball structure and a clamping groove, combined with a polygonal rotation limiting surface and the outer wall of the non-rotating insertion part, to achieve axial displacement and rotation limitation, and complete clamping through a simple axial insertion action.
It enables rapid replacement of grinding consumables, improves the rigidity and precision of the machining process, shortens replacement time, enhances the operating efficiency of the robot system, and simplifies the maintenance process.
Smart Images
Figure CN224334203U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of quick-change fixtures, and in particular to a quick-change connector for grinding consumables. Background Technology
[0002] In industrial automation, particularly in applications involving grinding and polishing using industrial robots, frequent replacement of grinding consumables (such as grinding wheels and grinding heads) is a common requirement. Traditional consumable clamping methods, such as bolt connections or simple plug-in connections, often suffer from cumbersome procedures, long processing times, difficulty in ensuring centering, or insufficient connection rigidity. These drawbacks significantly reduce the robot's working efficiency and accuracy, especially in grinding scenarios requiring high precision and stability. Current technology lacks a connection solution that simultaneously satisfies the requirements of rapid clamping / unclamping and easy maintenance. Utility Model Content
[0003] The purpose of this invention is to provide a quick-change connector for grinding consumables to solve the problems existing in the prior art.
[0004] The technical solution of this utility model is: a quick-change connector for grinding consumables, including a plug-in part and a plugged-in part that are configured to cooperate, wherein the plugged-in part is placed on the execution end of a robot with a rotation function, and the plug-in part is connected to the grinding consumables;
[0005] The insertion part has an axis along the vertical direction, the bottom end of the insertion part is fixed to the grinding consumable, and the top end can be inserted and engaged with the inserted part;
[0006] The inserted part has a first chamber corresponding to the inserted part. A radial engaging device is provided in the first chamber. The inserted part has an engaging groove around its own axis corresponding to the radial engaging device. The radial engaging device can engage with the engaging groove to restrict the movement of the inserted part along its own axis.
[0007] The inner wall of the first chamber is provided with a rotation limiting surface parallel to the axis. Multiple rotation limiting surfaces are evenly arranged around the axis of the inserted part, and an included angle is formed between adjacent rotation limiting surfaces. The outer wall of the inserted part is provided with a non-rotating body structure. The multiple rotation limiting surfaces cooperate with the outer wall of the inserted part to restrict the rotation of the inserted part around its own axis.
[0008] Preferably, the radial engaging device includes an engaging hole radially opened along the first chamber, an elastic element and a ball are installed in the engaging hole, the two ends of the elastic element are respectively connected to the bottom end of the engaging hole and the ball, and the ball can engage with the engaging groove of the insertion part entering the first chamber under the action of the elastic element.
[0009] Preferably, the inserted part includes a body and a bushing. The first chamber, the second chamber, and the engagement hole are all formed on the body, and the engagement hole is disposed through the body. The bushing is sleeved on the outside of the body, and the inner wall of the bushing corresponds to the end of the engagement hole away from the first chamber.
[0010] Preferably, the bushing has a through inspection hole corresponding to the engagement hole, and the inspection hole has a diameter smaller than that of the elastic element.
[0011] Preferably, a fixing member is provided in conjunction with the bushing. The fixing member includes a fixing step provided at the bottom of the bushing installation position and a fixing groove provided at the top of the bushing installation position. A fixing ring is detachably provided in conjunction with the fixing groove. The bottom of the fixing ring cooperates with the top of the fixing step to limit the bushing in the vertical direction.
[0012] Preferably, the fixing ring has an open end, making the fixing ring a C-shaped structure, and the open end is used for the installation and removal of the fixing ring from the fixing groove.
[0013] Preferably, a second chamber is provided on the side of the insertion part away from the first chamber, and the second chamber is provided with a set screw hole in the radial direction, having a set screw that can pass through the set screw hole and abut against the robot execution end.
[0014] Preferably, the bottom end of the plug is provided with a flange, and a fastener is provided to pass through the flange and connect with the grinding consumable.
[0015] Compared with the prior art, the advantages of this utility model are:
[0016] This quick-change connector for grinding consumables achieves significant technical advantages through its innovative design of the insertion and connection parts. The radial locking mechanism with its spring-loaded ball bearing structure and locking groove effectively locks axial displacement; the polygonal rotation limiting surface and the outer wall of the non-rotating insertion part restrict relative axial rotation, ensuring high rigidity and precision during machining. Furthermore, the connection process requires only a simple axial insertion action to complete clamping, significantly reducing consumable replacement time and improving the overall operational efficiency of the robot system.
[0017] The separate structure of the body and the bushing, the design of the inspection hole and the retaining ring greatly facilitate the installation, maintenance, inspection and lubrication of the radial clamp, and improve the maintainability and service life of the equipment. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0019] Figure 1 This is a structural diagram of a quick-change connector for grinding consumables according to the present invention;
[0020] Figure 2 This is an exploded view of a quick-change connector for grinding consumables according to the present invention.
[0021] Figure 3 This is a cross-sectional view of a quick-change connector for grinding consumables according to the present invention.
[0022] Figure 4 This is a structural diagram of the main body of the present invention;
[0023] Among them: 1. Insertion part, 2. Inserted part, 3. First chamber, 4. Second chamber, 5. Radial engaging, 51. Engaging hole, 52. Elastic element, 53. Ball, 6. Body, 7. Liner ring, 71. Fixing ring, 72. Fixing groove, 73. Inspection hole, 8. Set screw, 9. Flange, 100. Grinding consumables. Detailed Implementation
[0024] The present invention will be further described in detail below with reference to specific embodiments:
[0025] like Figures 1-3 As shown, a quick-change connector for grinding consumables is used to quickly clamp an industrial robot with various grinding consumables. It includes a mating insertion part 1 and a plugged-in part 2. The plugged-in part 2 is mounted on the rotating actuator of the industrial robot, and the insertion part 1 is connected to the grinding consumable 100. The insertion part 1 has an axis along a vertical direction, its bottom end is fixed to the grinding consumable 100, and its top end can be detachably inserted into the plugged-in part 2.
[0026] For clamping to be completed, the insertion part 2 needs to restrict the axial and radial displacement of the insertion part 1, as well as its rotational movement around the axis. To this end, the insertion part 2 has a first chamber 3 corresponding to the insertion part 1. After the insertion part 1 is inserted into the first chamber 3, the first chamber 3 restricts the radial movement of the insertion part 1. A radial engaging member 5 is provided within the first chamber 3. The insertion part 1 has an engaging groove around its own axis corresponding to the radial engaging member 5. The radial engaging member 5 can engage with the engaging groove, restricting the axial movement of the insertion part 1. Figure 2 and 4 As shown, the inner wall of the first chamber 3 is provided with a rotation limiting surface parallel to the axis. Multiple rotation limiting surfaces are evenly arranged around the axis of the insertion part 2, and adjacent rotation limiting surfaces form an angle to constitute a polygonal structure. The outer wall of the insertion part 1 is set as a non-rotating body structure, and the multiple rotation limiting surfaces cooperate with the outer wall of the insertion part 1 to restrict the rotation of the insertion part 1 around its own axis.
[0027] Specifically, the radial engaging device 5 includes an engaging hole 51 radially opened along the first chamber 3, and an elastic element 52 and a ball bearing 53 are installed in the engaging hole 51. In this embodiment, the elastic element 52 is a spring. The two ends of the elastic element 52 are respectively connected to the bottom end of the engaging hole 51 and the ball bearing 53, and the ball bearing 53 can engage with the engaging groove of the insertion part 1 entering the first chamber 3 under the action of the elastic element 52.
[0028] To facilitate the installation of the radial engaging device 5, the insertion part 2 includes a body 6 and a bushing 7. The first chamber 3, the second chamber 4, and the engaging hole 51 are all formed on the body 6. The bushing 7 is sleeved on the outside of the body 6, with its inner wall corresponding to the end of the engaging hole 51 furthest from the first chamber 3. This arrangement allows the engaging hole 51 to be a through-hole structure, enabling the elastic element 52 to be inserted from the outer wall of the body 6. The bushing 7 is then installed, with the tail end of the elastic element 52 abutting against the inner wall of the bushing 7. Furthermore, the bushing 7 has a through-hole 73 corresponding to the engaging hole 51, allowing for quick inspection of the radial engaging device 5 or the addition of lubricant. To ensure the function of the elastic element 52, the inspection hole 73 has a diameter smaller than that of the elastic element 52, preventing the elastic element 52 from dislodging from the inspection hole 73.
[0029] To fix the position of the retaining ring 7, a fixing component is provided to fit the retaining ring 7. The fixing component includes a fixing step at the bottom corresponding to the installation position of the retaining ring 7, and a fixing groove 72 at the top corresponding to the installation position of the retaining ring 7. A fixing ring 71 is detachably installed to fit the fixing groove 72. The bottom end of the fixing ring 71 engages with the top end of the fixing step to limit the vertical movement of the retaining ring 7. The fixing ring 71 has an open end, forming a C-shaped structure. The open end is used for the installation and removal of the fixing ring 71 from the fixing groove 72.
[0030] Furthermore, the second chamber 4 is radially provided with a set screw hole 8, which can pass through the set screw hole 8 and abut against the execution end of the industrial robot. The inserted part 2 is fixed to the execution end of the industrial robot by the set screw 8. The bottom end of the inserted part 1 is provided with a flange 9, and a fastener that can pass through the flange 9 and connect to the grinding consumable 100 is provided to achieve the fixation of the inserted part 1 and the grinding consumable 100.
[0031] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.
Claims
1. A quick-change connector for grinding consumables, characterized in that, It includes a plug-in part (1) and a plugged part (2) that are configured to work together. The plugged part (2) is placed on the robot's rotating execution end. The plug-in part (1) is connected to the grinding consumable (100). The insertion part (1) has an axis along the vertical direction. The bottom end of the insertion part (1) is fixed to the grinding consumable (100), and the top end can be inserted into the insertion part (2). The plugged part (2) has a first chamber (3) corresponding to the plugged part (1). A radial engaging device (5) is provided in the first chamber (3). The plugged part (1) has an engaging groove around its own axis corresponding to the radial engaging device (5). The radial engaging device (5) can engage with the engaging groove to restrict the movement of the plugged part (1) along its own axis. The inner wall of the first chamber (3) is provided with a rotation limiting surface parallel to the axis. The rotation limiting surface is evenly arranged in multiple ways around the axis of the inserted part (2), and an angle is formed between adjacent rotation limiting surfaces. The outer wall of the inserted part (1) is set as a non-rotating body structure. The multiple rotation limiting surfaces cooperate with the outer wall of the inserted part (1) to restrict the rotation of the inserted part (1) around its own axis.
2. The quick-change connector for grinding consumables according to claim 1, characterized in that, The radial engaging device (5) includes an engaging hole (51) opened radially along the first chamber (3). An elastic element (52) and a ball (53) are installed in the engaging hole (51). The two ends of the elastic element (52) are connected to the bottom end of the engaging hole (51) and the ball (53) respectively. Under the action of the elastic element (52), the ball (53) can engage with the engaging groove of the insertion part (1) entering the first chamber (3).
3. The quick-change connector for grinding consumables according to claim 2, characterized in that, The inserted part (2) includes a body (6) and a bushing (7). The first chamber (3), the second chamber (4) and the engagement hole (51) are all opened on the body (6). The engagement hole (51) is provided through the body (6). The bushing (7) is sleeved on the outside of the body (6). The inner wall of the bushing (7) corresponds to the end of the engagement hole (51) away from the first chamber (3).
4. The quick-change connector for grinding consumables according to claim 3, characterized in that, The bushing (7) has a through inspection hole (73) corresponding to the engagement hole (51), and the inspection hole (73) has a diameter smaller than that of the elastic element (52).
5. A quick-change connector for grinding consumables according to claim 4, characterized in that, The bushing (7) is provided with a fixing member, which includes a fixing step at the bottom of the bushing (7) at the installation position and a fixing groove (72) at the top of the bushing (7) at the installation position. A fixing ring (71) is detachably provided with the fixing groove (72). The bottom of the fixing ring (71) cooperates with the top of the fixing step to limit the bushing (7) in the vertical direction.
6. A quick-change connector for grinding consumables according to claim 5, characterized in that, The fixing ring (71) has an open end, which makes the fixing ring (71) form a C-shaped structure. The open end is used for the installation and removal of the fixing ring (71) and the fixing groove (72).
7. A quick-change connector for grinding consumables according to claim 1, characterized in that, The plugged part (2) has a second chamber (4) on the side away from the first chamber (3). The second chamber (4) has a set screw (8) hole in the radial direction and has a set screw (8) that can pass through the set screw (8) hole and abut against the robot execution end.
8. A quick-change connector for grinding consumables according to claim 1, characterized in that, The bottom end of the plug-in part (1) is provided with a flange (9), and is equipped with fasteners that can pass through the flange (9) and connect to the grinding consumable (100).