A polishing apparatus for fastener machining

Abstract

The utility model relates to the technical field of fastener production, disclose a kind of polishing equipment for fastener processing, including workbench, the top of workbench is equipped with mechanical arm, still include: drive part, set on mechanical arm;Clean polishing part, installation is above workbench;Clamping part, set on workbench;Clean polishing part includes liquid injection subassembly and cleaning assembly, liquid injection subassembly includes the polishing disc set above workbench, the top of polishing disc is equipped with annular groove, the inner wall of annular groove is rotatably connected with hollow ring, the top of hollow ring is connected with two hoses, the bottom inner wall of annular groove is equipped with several round holes.The utility model sets up clean polishing part, solved the existing polishing equipment when polishing, it is inconvenient to clean fastener, it is difficult to guarantee fastener surface finish, resulting in residual debris influence polishing quality and damage fastener surface, reduce the efficiency and finished product quality of fastener processing problem.

Description

Technical Field

[0001] This utility model belongs to the field of fastener manufacturing technology, and in particular relates to a grinding device for fastener processing. Background Technology

[0002] With the rapid development of industrial automation and high-end equipment manufacturing, fasteners, as key connecting components in fields such as machinery, automobiles, and aerospace, directly affect the assembly reliability, corrosion resistance, and service life of products due to their surface finish and dimensional accuracy. Therefore, efficient grinding equipment plays a crucial role in the fastener processing, effectively removing burrs, improving surface roughness, and enhancing overall quality.

[0003] However, existing grinding equipment is not convenient for cleaning fasteners during grinding, making it difficult to ensure the surface smoothness of fasteners. As a result, residual debris affects the grinding quality and damages the surface of fasteners, reducing the efficiency of fastener processing and the quality of finished products. Utility Model Content

[0004] The purpose of this utility model is to provide a grinding device for fastener processing. By setting up a cleaning grinding section, it solves the problem that existing grinding devices are not convenient for cleaning fasteners during grinding, making it difficult to ensure the surface smoothness of fasteners. This results in residual debris affecting the grinding quality and damaging the fastener surface, thus reducing the efficiency of fastener processing and the quality of finished products.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a grinding device for fastener processing, comprising a worktable, a robotic arm mounted on the top of the worktable, and further comprising: a drive unit mounted on the robotic arm; a cleaning and grinding unit mounted above the worktable; a clamping unit mounted on the worktable; the cleaning and grinding unit includes a liquid injection component mounted above the worktable; and a cleaning component mounted on the robotic arm. The liquid injection component includes a grinding disc mounted above the worktable, the top of which has an annular groove, and a hollow ring rotatably connected to the inner wall of the annular groove. Two flexible tubes are connected to the top of the hollow ring, and the bottom inner wall of the annular groove has several circular holes, including three circular holes.

[0006] Furthermore, the cleaning component includes a plurality of mounting slots formed on the bottom of the grinding disc, the plurality of mounting slots being connected to a plurality of circular holes respectively, and cleaning blocks being installed on the inner walls of the plurality of mounting slots; the plurality of cleaning blocks are distributed in a circumferential array on the grinding disc.

[0007] Furthermore, the drive unit includes a disk one fixedly connected to the robotic arm, a motor fixedly connected to the bottom of the disk one, several cylindrical rods fixedly connected to the bottom of the disk one, and a disk two fixedly connected to the bottom of the cylindrical rods. A connecting component is provided on the disk two. The motor is located between the cylindrical rods. The connecting component includes a rotating shaft one fixedly connected to the motor output shaft via a coupling. Two connecting rods are fixedly connected to the bottom wall of the disk two, and the bottoms of the two connecting rods are fixedly connected to a hollow ring. The rotating shaft one rotatably passes through the disk two and is fixedly connected to the top of the grinding disc. The Dobot CR5 collaborative robot arm works as follows: The CR5 converts the rotation of the servo motor and reducer into end-effector pose through a 6-joint serial mechanism. Within the CC161 controller, DH parameter compensation, TrueMotion dynamics, and vibration suppression are implemented to achieve high stiffness and trajectory stability. Based on the fusion of vision, force control, and electronic skin, it executes a hierarchical safety strategy for collision detection and proximity perception. It supports drag-and-drop teaching, trajectory recording and reproduction, and script / graphical programming. Combined with AI target detection and time-optimal path planning, it completes point-to-point and continuous trajectory tasks.

[0008] Furthermore, the clamping part includes a power assembly mounted on the bottom of the worktable; and a clamping assembly disposed on the worktable.

[0009] Furthermore, the power assembly includes a second rotating shaft fixedly connected to the bottom of the worktable, a fixing block fixedly connected to the outer wall of the second rotating shaft, a hydraulic cylinder fixedly connected to the side wall of the fixing block, and a hinge block fixedly connected to the output shaft of the hydraulic cylinder; the top of the fixing block is fixedly connected to the bottom of the worktable.

[0010] Furthermore, the clamping assembly includes a hinge rod 1 rotatably connected to the outer wall of the second rotating shaft. Two hinge rods 2 are hinged at both ends of the bottom of the hinge rod 1. A slide rod passes through the end of each of the two hinge rods 2 away from the hinge rod 1. The two hinge rods 2 are rotatably connected to the two slide rods respectively. Two guide grooves are provided on the worktable. The inner walls of the two guide grooves are slidably connected to the two slide rods respectively. Clamping components are provided on the two slide rods. The two slide rods are mirror images of each other. The clamping components include clamping plates fixedly connected to the top of the two slide rods respectively. The two clamping plates are mirror images of each other on the worktable.

[0011] This utility model has the following beneficial effects: 1. By setting up a cleaning and grinding section, the fasteners can be cleaned during grinding. The liquid injection component introduces cleaning fluid through a hose, which permeates through the annular groove and round hole to provide a cleaning medium for the cleaning component. The cleaning component, with the help of a cleaning block, can clean the surface of the fasteners during grinding, removing debris and impurities generated during grinding. This component combines grinding and cleaning functions. It ensures the surface smoothness of the fasteners through the grinding disc to meet processing requirements, and avoids debris residue affecting the grinding quality or damaging the fastener surface through the cleaning process. This effectively improves the efficiency and quality of fastener processing, reduces subsequent additional cleaning processes, and optimizes the processing flow. 2. By setting up a clamping part, the fasteners are ensured to be stably positioned during processing, providing reliable fixation for grinding operations. Its power component provides driving force, driving the movement of related structures through components such as hydraulic cylinders. Under the action of the power component, the clamping component uses the sliding of the slide rod in the guide groove to drive the clamping plates to move closer or further apart, thereby achieving the clamping and loosening of fasteners of different specifications. This component can flexibly adjust the clamping state according to the size of the fasteners, ensuring that the fasteners will not shift or shake during grinding, avoiding problems such as uneven grinding and dimensional deviations caused by inaccurate positioning, ensuring accurate grinding operations, and adapting to various specifications of fasteners, improving the versatility and applicability of the equipment to meet different processing needs.

[0012] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the drive unit of this utility model; Figure 3 This is a partial cross-sectional view of the cleaning and polishing part of this utility model; Figure 4 This is an exploded structural diagram of the cleaning and polishing part of this utility model; Figure 5 This is an exploded view of the cleaning component of this utility model; Figure 6 This is a partial cross-sectional view of the clamping part of this utility model; Figure 7This is a partial cross-sectional view of the clamping assembly of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 1. Drive unit; 111. Worktable; 112. Robotic arm; 113. Disc 1; 114. Motor; 115. Cylindrical rod; 116. Disc 2; 117. Rotating shaft 1; 118. Connecting rod; 2. Cleaning and grinding unit; 21. Liquid injection assembly; 211. Grinding disc; 212. Annular groove; 213. Hollow ring; 214. Hoses; 215. Circular hole; 22. Cleaning assembly; 221. Mounting slot; 222. Cleaning block; 3. Clamping unit; 31. Power assembly; 311. Rotating shaft 2; 312. Fixing block; 313. Hydraulic cylinder; 314. Hinge block; 32. Clamping assembly; 321. Hinge rod 1; 322. Hinge rod 2; 323. Slide rod; 324. Guide slide groove; 325. Clamping plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-7 As shown, this utility model is a grinding device for fastener processing, including a worktable 111, a robotic arm 112 mounted on the top of the worktable 111, and further including: a drive unit 1, which is disposed on the robotic arm 112; a cleaning and grinding unit 2, which is mounted above the worktable 111; and a clamping unit 3, which is disposed on the worktable 111. The drive unit 1 includes a disc 113 fixedly connected to the robotic arm 112, a motor 114 fixedly connected to the bottom of the disc 113, and a motor 114 fixedly connected to the bottom of the disc 113. A plurality of cylindrical rods 115 are connected, and a motor 114 is located among the cylindrical rods 115. A second disc 116 is fixedly connected to the bottom of the cylindrical rods 115, and a connecting component is provided on the second disc 116. The connecting component includes a first rotating shaft 117 fixedly connected to the output shaft of the motor 114 via a coupling. Two connecting rods 118 are fixedly connected to the bottom wall of the second disc 116, and the bottom of the two connecting rods 118 is fixedly connected to a hollow ring 213. The first rotating shaft 117 rotates through the second disc 116 and is fixedly connected to the top of the grinding disc 211.

[0018] The cleaning and polishing unit 2 includes a liquid injection assembly 21, which is positioned above the worktable 111; and a cleaning assembly 22, which is mounted on the robotic arm 112. The liquid injection assembly 21 includes a polishing disc 211 positioned above the worktable 111. The top of the polishing disc 211 has an annular groove 212. A hollow ring 213 is rotatably connected to the inner wall of the annular groove 212. Two flexible tubes 214 are connected to the top of the hollow ring 213. The bottom inner wall of the annular groove 212 has several circular holes 215. Three circular holes 215 are provided. The cleaning component 22 includes several mounting slots 221 formed at the bottom of the polishing disc 211. Each mounting slot 221 is connected to a number of circular holes 215. Cleaning blocks 222 are mounted on the inner walls of each mounting slot 221. The cleaning blocks 222 are arranged in a circumferential array at the bottom of the polishing disc 211. The cleaning blocks 222 are made of nylon or polyester fiber, which can absorb cleaning liquid through the fiber gaps and assist in removing debris with the help of fine abrasive particles, while avoiding scratching the surface of fasteners. Wear is unavoidable with long-term use, so the cleaning blocks can be replaced periodically.

[0019] By setting up the cleaning and polishing section 2, the polishing and cleaning functions are combined. The polishing disc 211 ensures the surface smoothness of the fasteners to meet the processing requirements, while the cleaning process avoids debris residue from affecting the polishing quality or damaging the fastener surface, effectively improving the efficiency of fastener processing and the quality of finished products.

[0020] The clamping part 3 includes a power assembly 31, which is installed at the bottom of the worktable 111; and a clamping assembly 32, which is disposed on the worktable 111. The power assembly 31 includes a second rotating shaft 311 fixedly connected to the bottom of the worktable 111. A fixing block 312 is fixedly connected to the outer wall of the second rotating shaft 311. A hydraulic cylinder 313 is fixedly connected to the side wall of the fixing block 312. A hinge block 314 is fixedly connected to the output shaft of the hydraulic cylinder 313. The top of the fixing block 312 is fixedly connected to the bottom of the worktable 111. The clamping assembly 32 includes a hinge rod 321 rotatably connected to the outer wall of the second rotating shaft 311. The hinge rod 321 is located below the fixed block 312. Two hinge rods 322 are hinged at both ends of the bottom of the hinge rod 321. A slide rod 323 passes through the end of each of the two hinge rods 322 away from the hinge rod 321. The two hinge rods 322 are rotatably connected to the two slide rods 323 respectively. Two guide grooves 324 are provided on the worktable 111. The inner walls of the two guide grooves 324 are slidably connected to the two slide rods 323 respectively. Clamping components are provided on the two slide rods 323. The two slide rods 323 are mirror images of each other. The clamping components include clamping plates 325 fixedly connected to the top of the two slide rods 323 respectively. The two clamping plates 325 are mirror images of each other on the worktable 111.

[0021] By setting the clamping part 3, it is possible to clamp and loosen fasteners of different specifications. This part can flexibly adjust the clamping state according to the size of the fastener, ensuring that the fastener will not shift or shake during grinding, and avoiding problems such as uneven grinding and size deviation caused by inaccurate positioning.

[0022] A specific application of this embodiment is as follows: During use, the fastener is placed between the two clamping plates 325 on the top of the workbench 111. Two hoses 214 are connected to a water pump in the cleaning fluid. The hydraulic cylinder 313 is opened, causing it to retract and move the hinge block 314 to the left. The slide rod 323 on the right side moves to the left accordingly. The right slide rod 323, through the right hinge rod 2 322, drives the hinge rod 1 321 to rotate on the rotating shaft 2 311. The rotation of the hinge rod 1 321, through the left hinge rod 2 322, drives the slide rod 323 to move to the right on the inner wall of the guide groove 324. Thus, the two slide rods 323 respectively drive the two clamping plates 325 to move closer together to fix the fastener. Then, the hydraulic cylinder 313 is stopped, and the guide groove 324... 4. Cover the top with a shield to prevent debris from entering, then turn on the motor 114. The motor 114 drives the grinding disc 211 to rotate through the rotating shaft 117. By controlling the robotic arm 112, the angle and position of the grinding disc 211 are indirectly changed, so that it can grind the fasteners on the worktable 111. When it is necessary to clean the fasteners, control the robotic arm 112 to indirectly change the angle of the grinding disc 211, thereby changing the angle of the cleaning block 222. Turn on the water pump, and the water pump injects cleaning fluid into the annular groove 212 through two hoses 214. The cleaning fluid seeps into the corresponding cleaning block 222 through the round hole 215. After the cleaning block 222 contacts the fastener, it rotates to clean the debris, impurities, etc. in the grinding area, thus completing the cleaning of the fasteners during grinding.

[0023] In addition to the above process, it should be noted that during cleaning, the angle of the cleaning block 222 is indirectly controlled by the robotic arm 112, so that the inclined surface of the cleaning block can contact the fastener to complete the cleaning. During grinding, the angle of the grinding disc 211 is indirectly controlled by the robotic arm 112, so that the flat part of the grinding disc contacts the fastener and grinds it. It is also necessary to select a cleaning fluid that is suitable for the fastener material (such as neutral cutting fluid for metal fasteners and special anti-corrosion cleaning fluid for aluminum alloys) to avoid chemical reaction between the cleaning fluid and the fastener. At the same time, the amount of cleaning fluid injected should be controlled to avoid excessive amount causing the grinding disc 211 to slip.

[0024] It should be noted that the motor 114, robotic arm 112, hydraulic cylinder 313 and water pump control in this application can all be automated by using a program set in the control panel and inputting relevant parameters as needed. This control method can be achieved using existing technologies, such as PLC.

[0025] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A grinding device for fastener processing, comprising a worktable (111), wherein a robotic arm (112) is mounted on the top of the worktable (111), characterized in that, Also includes: A drive unit (1) is mounted on a robotic arm (112); Cleaning and polishing section (2), which is installed above the workbench (111); Clamping part (3) is provided on the worktable (111); The cleaning and polishing unit (2) includes a liquid injection assembly (21), which is disposed above the workbench (111); as well as A cleaning assembly (22) is mounted on a robotic arm (112); The liquid injection assembly (21) includes a grinding disc (211) disposed above the workbench (111). The top of the grinding disc (211) is provided with an annular groove (212). A hollow ring (213) is rotatably connected to the inner wall of the annular groove (212). Two flexible tubes (214) are connected to the top of the hollow ring (213). A number of circular holes (215) are provided on the bottom inner wall of the annular groove (212). Among them, three round holes (215) are provided.

2. The grinding equipment for fastener processing according to claim 1, characterized in that, The cleaning component (22) includes a plurality of mounting slots (221) formed at the bottom of the grinding disc (211), the plurality of mounting slots (221) being connected to a plurality of round holes (215) respectively, and cleaning blocks (222) are installed on the inner walls of the plurality of mounting slots (221). Among them, several cleaning blocks (222) are arranged in a circular array on the polishing disc (211).

3. The grinding equipment for fastener processing according to claim 1, characterized in that, The drive unit (1) includes a disk one (113) fixedly connected to the robotic arm (112), a motor (114) fixedly connected to the bottom of the disk one (113), a plurality of cylindrical rods (115) fixedly connected to the bottom of the disk one (113), a disk two (116) fixedly connected to the bottom of the cylindrical rods (115), and a connector provided on the disk two (116). Among them, the motor (114) is located between several cylindrical rods (115).

4. The grinding equipment for fastener processing according to claim 1, characterized in that, The clamping part (3) includes a power assembly (31) mounted on the bottom of the worktable (111); and A clamping assembly (32) is disposed on a worktable (111).

5. A grinding device for fastener processing according to claim 4, characterized in that, The power assembly (31) includes a rotating shaft two (311) fixedly connected to the bottom of the workbench (111). A fixing block (312) is fixedly connected to the outer wall of the rotating shaft two (311). A hydraulic cylinder (313) is fixedly connected to the side wall of the fixing block (312). A hinge block (314) is fixedly connected to the output shaft of the hydraulic cylinder (313). The top of the fixing block (312) is fixedly connected to the bottom of the worktable (111).

6. The grinding equipment for fastener processing according to claim 5, characterized in that, The clamping assembly (32) includes a hinge rod (321) rotatably connected to the outer wall of the rotating shaft (311). Two hinge rods (322) are hinged at both ends of the bottom of the hinge rod (321). A slide rod (323) passes through the end of each of the two hinge rods (322) away from the hinge rod (321). The two hinge rods (322) are rotatably connected to the two slide rods (323). Two guide grooves (324) are provided on the worktable (111). The inner walls of the two guide grooves (324) are slidably connected to the two slide rods (323). Clamping components are provided on the two slide rods (323). The two slide bars (323) are mirror images of each other.

7. A grinding device for fastener processing according to claim 6, characterized in that, The clamping member includes clamping plates (325) that are respectively fixedly connected to the top of the two slide bars (323); The two clamps (325) are arranged in a mirror image on the worktable (111).

8. A grinding device for fastener processing according to claim 3, characterized in that, The connecting component includes a rotating shaft (117) fixedly connected to the output shaft of the motor (114) via a coupling, and two connecting rods (118) fixedly connected to the bottom wall of the disc (116), with the bottom of the two connecting rods (118) fixedly connected to a hollow ring (213). Among them, the first rotating shaft (117) rotates through the second disc (116) and is fixedly connected to the top of the grinding disc (211).

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