Quick-change grinding tool for automatic grinding of robot

Abstract

The quick-change grinding tool comprises a mechanical arm, a lifting plate and a grinding head, and is characterized in that a motor and a shaft rod are arranged on the side wall of the mechanical arm, a guide groove and an annular groove are formed in the front end of the shaft rod, the grinding head is arranged at the front end of the shaft rod, a connecting plate is arranged on the side wall of the grinding head, and a guide block is arranged on the side wall of the connecting plate; when the grinding head and the shaft rod need to be connected, the guide block is pushed to slide in the guide groove till the guide block moves into the annular groove, the grinding head is rotated to drive the guide block to slide in the annular groove till the guide block and the guide groove are staggered, and the rotating direction of the grinding head and the rotating direction of the guide block are limited through the limiting assembly; and the grinding head can be quickly connected with the shaft rod, and the grinding head can be conveniently replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of robot grinding, in particular to a quick-change grinding tool for robot automatic grinding. Background Technique

[0002] In the field of robot automatic grinding, when the grinding tool is worn to a certain extent, the grinding tool must be replaced to ensure the quality and efficiency of grinding and the automatic operation of grinding. The traditional robot grinding head needs to be equipped with a grinding tool wear detection device. After each grinding, the grinding tool needs to be detected for wear. When the wear of the grinding tool reaches the replacement standard, the entire work station stops and an alarm is issued. Manual workers need to manually disassemble and replace the grinding tool. It cannot solve the shutdown accidents of the automobile production line caused by manual replacement of the grinding tool, and cannot improve the overall efficiency of the automobile production line. In the automobile body manufacturing workshop, the production rhythm of the automobile is 50-60 seconds / vehicle. The traditional mechanical grinding head needs to be manually replaced about once every 30 minutes, and the replacement time is 15-20 minutes. Content of the Utility Model

[0003] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part and in the abstract and title of the specification of this application to avoid obscuring the purpose of this part, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0004] In view of the above and / or problems existing in a quick-change grinding tool for robot automatic grinding, the present utility model is proposed.

[0005] Therefore, the purpose of the present utility model is to provide a quick-change grinding tool for robot automatic grinding. By arranging a motor and a shaft rod on the side wall of the robotic arm, a guiding groove and an annular groove are opened at the front end of the shaft rod, a grinding head is arranged at the front end of the shaft rod, a connecting plate is arranged on the side wall of the grinding head, and a guiding block is arranged on the side wall of the connecting plate. When it is necessary to connect the grinding head and the shaft rod, the guiding block is pushed to slide inside the guiding groove until the guiding block moves into the annular groove, and the grinding head is rotated to drive the guiding block to slide inside the annular groove until the guiding block is staggered from the guiding groove. The rotation direction of the grinding head and the guiding block is limited by a limiting component, so that the grinding head can be quickly connected with the shaft rod, which is convenient for replacing the grinding head.

[0006] To solve the above technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

[0007] A quick-change grinding tool for robot automatic grinding, which comprises:

[0008] A robotic arm;

[0009] The lifting plate is located on the side wall of the robotic arm. An installation frame is installed on the side wall of the lifting plate. A shaft rod is rotatably connected to the side wall of the installation frame. A motor is installed on the inner wall of the installation frame. The output end of the motor is connected to the shaft rod. A slotted groove is opened at the front end of the shaft rod. An annular groove is opened on the side wall of the slotted groove. A guiding groove is also opened on the side wall of the slotted groove;

[0010] The grinding head is located on the side wall of the lifting plate. A connecting plate is installed on the side wall of the grinding head. A connecting rod is installed on the side wall of the connecting plate. A guiding block that cooperates with the guiding groove is installed at the front end of the outer wall of the connecting rod;

[0011] The limiting component is installed on the side wall of the connecting plate and is used to limit and fix the grinding head at the front end of the shaft rod.

[0012] As a preferred solution of a quick-change grinding tool for automatic grinding of a robot according to the present invention, a spring is installed on the side wall of the connecting plate.

[0013] As a preferred solution of a quick-change grinding tool for automatic grinding of a robot according to the present invention, a cross plate is installed on the side wall of the installation frame, and a limiting hole is opened on the side wall of the cross plate.

[0014] As a preferred solution of a quick-change grinding tool for automatic grinding of a robot according to the present invention, the limiting component includes a fixed frame installed on the side wall of the connecting plate, a sliding plate slidably located inside the fixed frame, a second spring installed on the side wall of the sliding plate, and a limiting rod installed on the other side wall of the sliding plate.

[0015] As a preferred solution of a quick-change grinding tool for automatic grinding of a robot according to the present invention, two fixing plates are symmetrically installed on the side wall of the robotic arm. A threaded rod is rotatably connected between the two fixing plates. The top end of the threaded rod extends out of the top of the fixing plate and is installed with a knob. A guiding rod is installed between the two fixing plates.

[0016] As a preferred solution of a quick-change grinding tool for automatic grinding of a robot according to the present invention, a threaded hole is opened at the top of the lifting plate. The threaded rod rotates through the threaded hole. A guiding hole is opened at the top of the lifting plate. The guiding rod passes through the guiding hole.

[0017] Compared with the prior art: a motor and a shaft are arranged on the side wall of the robot arm, a guide groove and an annular groove are opened at the front end of the shaft, a grinding head is arranged at the front end of the shaft, a connecting plate is arranged on the side wall of the grinding head, and a guide block is arranged on the side wall of the connecting plate. When the grinding head needs to be connected to the shaft, the guide block is pushed to slide inside the guide groove until the guide block moves into the annular groove. The rotating grinding head drives the guide block to slide inside the annular groove until the guide block is offset from the guide groove. The rotation direction of the grinding head and the guide block is limited by the limit assembly, so that the grinding head can be quickly connected to the shaft, which facilitates the replacement of the grinding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 This is an overall structural diagram of a quick-change grinding tool for robot automatic grinding in the utility model;

[0020] Figure 2 This is a partial structural diagram of a quick-change grinding tool for robot automatic grinding in the utility model;

[0021] Figure 3 This is a structural diagram of a quick-change grinding tool grinding head for robot automatic grinding in the utility model;

[0022] Figure 4 The utility model is a structural diagram of a quick-change grinding tool limit assembly for automatic grinding by a robot. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The utility model provides a quick-change grinding tool for automatic grinding of robots, wherein a motor and a shaft rod are arranged on the side wall of a robot arm, a guide groove and an annular groove are provided at the front end of the shaft rod, a grinding head is arranged at the front end of the shaft rod, a connecting plate is arranged on the side wall of the grinding head, and a guide block is arranged on the side wall of the connecting plate. When the grinding head needs to be connected to the shaft rod, the guide block is pushed to slide in the guide groove until the guide block moves into the annular groove, and the rotating grinding head drives the guide block to slide in the annular groove until the guide block is staggered from the guide groove, and a limiting component is used to limit the rotation direction of the grinding head and the guide block, so that the grinding head can be quickly connected to the shaft rod, and the grinding head is convenient to replace.

[0027] Figures 1-4 The figure shows a schematic diagram of a quick-change grinding tool for robot automatic grinding of the utility model. Figures 1-4 In this embodiment, a quick-change grinding tool for robot automatic grinding includes a robot arm 100, a lifting plate 200, a grinding head 300 and a limiting assembly 400.

[0028] Two fixing plates 110 are symmetrically installed on the side wall of the robot arm 100 , a threaded rod 120 is rotatably connected between the two fixing plates 110 , the top of the threaded rod 120 extends out of the top of the fixing plate 110 and is installed with a knob 130 , and a guide rod 140 is installed between the two fixing plates 110 .

[0029] The lifting plate 200 is located on the side wall of the robot arm 100, and a mounting frame 210 is installed on the side wall of the lifting plate 200. The side wall of the mounting frame 210 is rotatably connected to the shaft 220. A motor 230 is installed on the inner wall of the mounting frame 210. The output end of the motor 230 is connected to the shaft 220. A slot 240 is provided at the front end of the shaft 220, and an annular slot 250 is provided on the side wall of the slot 240. A guide slot 260 is also provided on the side wall of the slot 240. A horizontal plate 270 is installed on the side wall of the mounting frame 210. A limit hole 271 is provided on the side wall of the horizontal plate 270. A threaded hole 271 is provided on the top of the lifting plate 200. Hole 280, the threaded rod 120 rotates and passes through the threaded hole 280, a guide hole 290 is opened on the top of the lifting plate 200, and the guide rod 140 passes through the guide hole 290. The threaded rod 120 is driven to rotate by rotating the knob 130. When the threaded rod 120 rotates, the lifting plate 200 is pushed by the screw structure to drive the mounting frame 210 to move up and down, and the mounting frame 210 drives the shaft rod 220 and the grinding head 300 to move up and down, and the grinding position of the grinding head 300 is adjusted. The shaft rod 220 is driven to rotate by starting the motor 230, and the shaft rod 220 drives the grinding head 300 to rotate for grinding.

[0030] The grinding head 300 is located on the side wall of the lifting plate 200, and a connecting plate 310 is installed on the side wall of the grinding head 300, and a connecting rod 320 is installed on the side wall of the connecting plate 310. A guide block 330 that cooperates with the guide groove 260 is installed on the front end of the outer wall of the connecting rod 320, and a spring 340 is installed on the side wall of the connecting plate 310. The limiting assembly 400 is installed on the side wall of the connecting plate 310, and is used to limit and fix the grinding head 300 at the front end of the shaft rod 220. The limiting assembly 400 includes a fixed frame 410 installed on the side wall of the connecting plate 310, a slide plate 420 that slides inside the fixed frame 410, a second spring 430 installed on the side wall of the slide plate 420, and a limiting rod 440 installed on the other side wall of the slide plate 420. When the lifting plate 200 and the grinding head 300 need to be connected, the grinding head 300 is pushed toward the lifting plate 200 direction. The guide block 330 moves, and slides inside the guide groove 260 until the side wall of the connecting rod 320 abuts against the side wall of the annular groove 250. The guide block 330 is located inside the annular groove 250, pulling the slide plate 420 to slide into the fixed frame 410 and squeeze the second spring 430. The limit rod 440 slides with the slide plate 420 and is retracted into the fixed frame 410. The rotating grinding head 300 drives the connecting rod 320 and the guide block 330 to rotate. The guide block 330 rotates 90° inside the annular groove 250 and is offset from the guide groove 260. The slide plate 420 is released, and the second spring 430 rebounds to push the slide plate 420 and the limit rod 440 to move toward the cross plate 270. The limit rod 440 passes through the limit hole 271 to limit the rotation angle of the grinding head 300, so that the grinding head 300 and the shaft rod 220 can be limited and fixed.

[0031] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A quick-change grinding tool for automatic robot grinding, characterized in that, Including: A robotic arm (100); A lifting plate (200), located on the side wall of the robotic arm (100). An installation frame (210) is installed on the side wall of the lifting plate (200). A shaft rod (220) is rotatably connected to the side wall of the installation frame (210). A motor (230) is installed on the inner wall of the installation frame (210). The output end of the motor (230) is connected to the shaft rod (220). A slotted opening (240) is provided at the front end of the shaft rod (220). An annular groove (250) is provided on the side wall of the slotted opening (240). A guiding groove (260) is also provided on the side wall of the slotted opening (240); A grinding head (300), located on the side wall of the lifting plate (200). A connecting plate (310) is installed on the side wall of the grinding head (300). A connecting rod (320) is installed on the side wall of the connecting plate (310). A guiding block (330) that cooperates with the guiding groove (260) is installed at the front end of the outer wall of the connecting rod (320); A limiting component (400), installed on the side wall of the connecting plate (310), for limiting and fixing the grinding head (300) at the front end of the shaft rod (220).

2. The quick-change grinding tool for automatic grinding of a robot according to claim 1, characterized in that, A spring (340) is installed on the side wall of the connecting plate (310).

3. The quick-change grinding tool for automatic grinding of a robot according to claim 2, wherein, A cross plate (270) is installed on the side wall of the installation frame (210). A limiting hole (271) is provided on the side wall of the cross plate (270).

4. A quick-change grinding tool for automatic grinding of a robot according to claim 3, characterized in that, The limiting component (400) includes a fixed frame (410) installed on the side wall of the connecting plate (310), a sliding plate (420) slidably located inside the fixed frame (410), a second spring (430) installed on the side wall of the sliding plate (420), and a limiting rod (440) installed on the other side wall of the sliding plate (420).

5. The quick-change grinding tool for automatic grinding of a robot according to claim 4, characterized in that, Two fixing plates (110) are symmetrically installed on the side wall of the robotic arm (100). A threaded rod (120) is rotatably connected between the two fixing plates (110). The top end of the threaded rod (120) extends out of the top of the fixing plate (110) and is installed with a knob (130). A guiding rod (140) is installed between the two fixing plates (110).

6. The quick-change grinding tool for automatic grinding of a robot according to claim 5, characterized in that, A threaded hole (280) is provided at the top of the lifting plate (200). The threaded rod (120) rotatably penetrates through the threaded hole (280). A guiding hole (290) is provided at the top of the lifting plate (200). The guiding rod (140) penetrates through the guiding hole (290).

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