Clamp device and polishing apparatus using the same

Abstract

This application relates to the field of processing equipment technology, and discloses a clamping device and a polishing device using the same. The clamping device includes a base assembly and multiple connecting assemblies. The base assembly includes a base, a support base, and a connecting column, with the base and support base respectively located at both ends of the connecting column and connected to it. Multiple connecting assemblies are arranged sequentially at intervals along the circumference of the connecting column, each connecting assembly being configured to connect one workpiece. Each connecting assembly includes a connector, which is rotatably connected to the base and configured to detachably connect one end of the workpiece. The support base has support holes along the length of the connecting column. Multiple support holes are provided, one support hole corresponding to one connector, and the support hole is configured to accommodate a portion of the workpiece. This clamping device can improve the efficiency of workpiece polishing.

Description

Technical Field

[0001] This application relates to the field of processing equipment technology, and more specifically, to a clamping device and a polishing device using the same. Background Technology

[0002] During the machining process, polishing equipment is sometimes used to polish the surface of the workpiece to remove defects such as burrs or tool marks. Commonly used polishing equipment includes grinding wheels and sandblasting machines.

[0003] When polishing the peripheral walls of slender rod-shaped workpieces using a sandblasting machine, the workpiece must be held firmly by hand and rotated around its axis to ensure sufficient contact between the abrasive particles ejected from the sandblasting gun and the workpiece's peripheral walls. Holding multiple workpieces by hand at once results in them contacting each other, obstructing the peripheral walls and hindering proper abrasive contact, leading to poor polishing results. Therefore, polishing should only be done by holding a single workpiece at a time, resulting in low polishing efficiency. Utility Model Content

[0004] In view of this, this application provides a clamping device and a polishing apparatus using the same, so as to improve the efficiency of polishing workpieces.

[0005] This application provides a clamping device for fixing a workpiece to be processed. The clamping device includes a base assembly and multiple connecting assemblies. The base assembly includes a base, a support base, and a connecting column. The base and support base are respectively disposed at both ends of the connecting column and connected to the connecting column. Multiple connecting assemblies are arranged sequentially at intervals along the circumference of the connecting column, and each connecting assembly is configured to connect one workpiece. Each connecting assembly includes a connector, which is rotatably connected to the base and configured to detachably connect one end of the workpiece. The support base has support holes along the length of the connecting column. Multiple support holes are provided, with one support hole corresponding to one connector, and the support hole is configured to accommodate a portion of the workpiece.

[0006] When using this clamping device to hold workpieces, one end of the workpiece can be inserted into the support hole and connected to the connector. Simultaneously, the inner circumferential wall of the support hole supports the circumferential wall of the workpiece, enhancing the fixation effect. This allows multiple workpieces to be connected to the base with adjacent workpieces spaced apart, enabling the clamping device to simultaneously fix multiple workpieces with these workpieces spaced apart. When using polishing equipment employing this clamping device to spray abrasive onto the workpiece, the workpiece can be rotated to ensure full contact between the abrasive and the workpiece. This clamping device can clamp multiple workpieces at once, improving the efficiency of workpiece polishing.

[0007] In some embodiments of this application, the connecting assembly further includes a clamping member comprising an elastic portion and two clamping portions. The elastic portion connects the two clamping portions and is configured to bring the two clamping portions close to each other so that the two clamping portions respectively clamp both sides of the workpiece. The clamping portions are configured to abut against the side of the support base opposite to the base along the length direction of the connecting column.

[0008] When the workpiece is subjected to the abrasive force at the location between the support and the connector, the workpiece tends to bend, causing the clamping part to come into contact with the support. The support has the effect of stopping the clamping part, thereby reducing the risk of bending deformation of the workpiece.

[0009] In some embodiments of this application, the clamping member further includes an extension connected to the clamping member. The extension has a receiving groove for accommodating the workpiece and is inserted into the support hole and rotatably engaged with the support hole. The peripheral wall of the support base has multiple clearance notches, each clearance notch corresponding to a support hole. Each clearance notch communicates with the corresponding support hole and is configured to allow the workpiece to move into or out of the support hole.

[0010] When installing the workpiece, after the workpiece is placed into the receiving groove, the two clamping parts clamp the workpiece together. Then, the workpiece is moved from the clearance notch into the support hole, and then the workpiece is moved toward the base so that the end of the workpiece near the base is connected to the connector. At this time, the extension is inserted into the support hole and rotates with the support hole.

[0011] In some embodiments of this application, the base includes a rotating disk and a rotation drive assembly. The rotating disk is connected to a connecting column, and the connecting members are rotatably connected to the rotating disk. The rotation drive assembly connects to multiple connecting members and is configured to drive the multiple connecting members to rotate.

[0012] The self-rotation drive assembly allows each connector to rotate around its own axis of rotation, so that the workpiece rotates on its own axis while revolving with the base, ensuring that the workpiece's peripheral wall makes full contact with the abrasive, thereby further improving the polishing effect and efficiency.

[0013] In some embodiments of this application, the base further includes a mounting portion, which is rotatably connected to the rotating disk. The self-rotation drive assembly includes a fixed gear and a plurality of driven gears. The fixed gear is connected to the mounting portion, and each driven gear corresponds to a connecting member. Each driven gear is connected to its corresponding connecting member and meshes with the fixed gear.

[0014] When the base rotates, it can drive the connecting parts to move, causing the driven gear to move relative to the fixed gear, and causing the driven gear to rotate around its own axis, so that the corresponding connecting parts rotate, thereby achieving the effect of the connecting parts driving the workpiece to rotate.

[0015] In some embodiments of this application, the connecting assembly further includes a rotating shaft rotatably connected to the rotating disk, and the rotating shaft has a positioning hole along its own axial direction. The connecting member is an elastic sleeve, which is inserted into the positioning hole, and the outer peripheral wall of the elastic sleeve elastically abuts against the inner peripheral wall of the positioning hole.

[0016] After the elastic sleeve is inserted into the positioning hole, the outer peripheral wall of the elastic sleeve can elastically abut against the inner peripheral wall of the positioning hole, so that the elastic sleeve and the self-rotating shaft can be detachably connected, making it easy to replace the elastic sleeve of the corresponding specification according to the thickness of the workpiece.

[0017] In some embodiments of this application, the connector is an elastic sleeve, one end of which is rotatably connected to the base, and the other end of which is sleeved on the workpiece, with the inner circumferential wall of the elastic sleeve elastically abutting against the workpiece.

[0018] When installing a workpiece, insert the end of the workpiece into the elastic sleeve. The inner circumferential wall of the elastic sleeve will then abut against the circumferential wall of the workpiece to fix it in place. When removing a workpiece, pull it forcefully to remove it from the elastic sleeve.

[0019] In some embodiments of this application, the outer peripheral wall of the elastic sleeve is provided with a deformation notch that penetrates the inner peripheral wall of the elastic sleeve, and the deformation notch penetrates the end wall of the elastic sleeve near the support.

[0020] The deformation notch can reduce the structural strength of the elastic sleeve, making it easier for the elastic sleeve to undergo elastic deformation, thereby facilitating the elastic sleeve to elastically clamp the workpiece.

[0021] Embodiments of this application also provide a polishing apparatus, including a sandblasting machine body, a spray gun assembly, and a clamping device provided in any of the above embodiments. At least one of the base, connecting column, and support seat of the clamping device is connected to the sandblasting machine body, and the sandblasting machine body is configured to drive the base to rotate about the axis of the connecting column. The spray gun assembly is connected to the sandblasting machine body and configured to spray abrasive material onto the workpiece.

[0022] After the workpiece is clamped on the fixture, the fixture is installed on the main body of the sandblasting machine. The main body of the sandblasting machine can drive the base to rotate, so that multiple workpieces on the fixture are moved sequentially to the spray gun device, so that the abrasive sprayed by the spray gun device can fully contact the workpiece.

[0023] In some embodiments of this application, the spray gun device includes a spray gun body and a moving drive assembly. The moving drive assembly connects the spray gun body and the sandblasting machine body. The moving drive assembly is configured to drive the spray gun body to move along the length direction of the connecting column of the clamping device.

[0024] The moving drive device can drive the spray gun body to move along the length of the connecting column, so that the abrasive sprayed by the spray gun body can fully contact the peripheral wall of the workpiece, which can further improve the polishing efficiency of the workpiece. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a polishing device provided in an embodiment of this application.

[0026] Figure 2 yes Figure 1 The diagram shows the structure of the clamping device provided.

[0027] Figure 3 yes Figure 2 A partially exploded diagram of the clamping device provided in the diagram.

[0028] Figure 4 yes Figure 3 Enlarged view at point A.

[0029] Figure 5 yes Figure 3 Enlarged view at point B.

[0030] Explanation of main component symbols 1000 Polishing equipment; 100 Sandblasting machine body; 11 Drive spindle; 12 Receiver; 200 Spray gun device; 21 Spray gun body; 211 Guide sleeve; 22 Moving drive assembly; 23 Guide rod; 300 Clamping device; 31 Base assembly; 311 Base; 3111 Rotating disk; 3111a Rotating hole; 3112 Mounting part; 3113 Self-rotation drive assembly; 3113a Fixed gear; 3113b 312 Driven gear; 312 Support base; 3121 Mounting hole; 3122 Support hole; 3123 Relief notch; 313 Connecting column; 32 Connecting assembly; 321 Connecting piece; 3211 Elastic sleeve; 3211a Deformation notch; 322 Rotation shaft; 3221 Positioning hole; 323 Clamping piece; 3231 Elastic part; 3232 Clamping part; 3233 Extension part; 3233a Receiving groove; 2000 Workpiece. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0033] This application provides a clamping device for fixing a workpiece to be processed. The clamping device includes a base assembly and multiple connecting assemblies. The base assembly includes a base, a support base, and a connecting column. The base and support base are respectively disposed at both ends of the connecting column and connected to the connecting column. Multiple connecting assemblies are arranged sequentially at intervals along the circumference of the connecting column, and each connecting assembly is configured to connect one workpiece. Each connecting assembly includes a connector, which is rotatably connected to the base and configured to detachably connect one end of the workpiece. The support base has support holes along the length of the connecting column. Multiple support holes are provided, with one support hole corresponding to one connector, and the support hole is configured to accommodate a portion of the workpiece.

[0034] When using this clamping device to hold workpieces, one end of the workpiece can be inserted into the support hole and connected to the connector. Simultaneously, the inner circumferential wall of the support hole supports the circumferential wall of the workpiece, enhancing the fixation effect. This allows multiple workpieces to be connected to the base with adjacent workpieces spaced apart, enabling the clamping device to simultaneously fix multiple workpieces with these workpieces spaced apart. When using polishing equipment employing this clamping device to spray abrasive onto the workpiece, the workpiece can be rotated to ensure full contact between the abrasive and the workpiece. This clamping device can clamp multiple workpieces at once, improving the efficiency of workpiece polishing.

[0035] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0036] Reference Figure 1 This application provides a polishing apparatus 1000 for polishing the surface of a workpiece 2000. The polishing apparatus 1000 includes a sandblasting machine body 100, a spray gun device 200, and a clamping device 300. The clamping device 300 is configured to fix a plurality of workpieces 2000 to be processed. The spray gun device 200 is connected to the sandblasting machine body 100 and is configured to spray abrasive material onto the workpieces 2000 on the clamping device 300. The abrasive material can remove burrs, tool marks, or rust from the surface of the workpieces 2000, thereby achieving a polishing effect.

[0037] In some embodiments, the abrasive is elastic; exemplaryly, the abrasive is a soft particle made of an elastic polymeric synthetic material, the surface of which is coated with a layer of diamond micropowder. In other embodiments, the abrasive may be fine sand or other types of abrasive.

[0038] In some embodiments, the workpiece 2000 is a thin rod-shaped ultrasonic scalpel, and the polishing device 1000 is used to polish the handle of the ultrasonic scalpel. In other embodiments, the workpiece 2000 may also be other types of rod-shaped, column-shaped, or other shapes.

[0039] Reference Figure 1 and Figure 2 The clamping device 300 includes a base assembly 31 and multiple connecting assemblies 32. The base assembly 31 includes a base 311, a support 312, and a connecting column 313. The base 311 and support 312 are respectively located at both ends of the connecting column 313 and connected to it. In some embodiments, the base 311 includes a rotating disk 3111. The rotating disk 3111 is a disc, and one end of the connecting column 313 is coaxially and fixedly connected to the rotating disk 3111. The other end of the connecting column 313 extends along the length of the rotating disk 3111. The support 312 is disc-shaped and has a mounting hole 3121 along its own axial direction. The mounting hole 3121 is coaxial with the support 312, and the end of the connecting column 313 away from the rotating disk 3111 is inserted into the mounting hole 3121 and fixedly connected to the support 312.

[0040] Multiple connecting components 32 are arranged sequentially at intervals along the circumference of the connecting post 313, and each connecting component 32 is configured to connect one workpiece 2000. Each connecting component 32 includes a connector 321, which is rotatably connected to the rotating disk 3111 and configured to detachably connect one end of the workpiece 2000. A support base 312 has support holes 3122 along the length of the connecting post 313. Multiple support holes 3122 are provided, with one support hole 3122 corresponding to one connector 321. The support holes 3122 are configured to accommodate a portion of the workpiece 2000. For example, one end of the workpiece 2000 can be inserted into the support hole 3122 and connected to the connector 321. The inner circumferential wall of the support hole 3122 can provide support for the workpiece 2000. Thus, this clamping device 300 can be used to clamp multiple workpieces 2000 at once.

[0041] In some embodiments, the base 311 further includes a mounting portion 3112, which is generally annular and located on the side of the rotating disk 3111 opposite to the support base 312 along the length of the connecting column 313. The mounting portion 3112 is rotatably connected to the rotating disk 3111. The sandblasting machine body 100 is provided with a drive spindle 11 and a receiving seat 12. The receiving seat 12 is spaced apart from the drive spindle 11 along the axial direction of the drive spindle 11 and is fixedly connected to the sandblasting machine body 100. The receiving seat 12 is configured to receive the mounting portion 3112, and the mounting portion 3112 can be fixedly connected to the receiving seat 12. The drive spindle 11 is configured to connect to the end of the connecting column 313 near the support base 312 and is configured to drive the connecting column 313 to rotate. Understandably, the connecting post 313 protrudes from the mounting hole 3121 to the side of the support base 312 away from the rotating disk 3111, so as to facilitate the connection of the connecting post 313 to the drive spindle 11. In other embodiments, the support base 312 may also be connected to the sandblasting machine body 100.

[0042] In some embodiments, the spray gun device 200 is located on one side of the receiving seat 12 and connected to the sandblasting machine body 100. The drive spindle 11 can drive the connecting column 313 to rotate, so that the rotating disk 3111 drives the workpiece 2000 to rotate, thereby allowing each workpiece 2000 on the clamping device 300 to move sequentially to the spray gun device 200.

[0043] In some embodiments, the spray gun device 200 includes a spray gun body 21 and a moving drive assembly 22. The moving drive assembly 22 connects the spray gun body 21 and the sandblasting machine body 100, and is configured to drive the spray gun body 21 to move along the length direction of the connecting post 313 of the clamping device 300. Exemplarily, the spray gun device 200 also includes a guide rod 23, the length direction of which is axially arranged along the main shaft; the spray gun body 21 is provided with a guide sleeve 211, which is sleeved on the guide rod 23 and slidably connected to the guide rod 23 along its length direction; the moving drive assembly 22 is a cylinder, the cylinder body of which is connected to the sandblasting machine body 100, and the piston rod of which is connected to the guide sleeve 211. In other embodiments, the moving drive assembly 22 may be an electric push rod or a linear motor, or other structural components capable of driving the spray gun body 21 to move.

[0044] The moving drive assembly 22 can drive the spray gun body 21 to move along the length of the connecting column 313, so that the abrasive sprayed by the spray gun body 21 can fully contact the peripheral wall of the workpiece 2000 at all points. This eliminates the need for manual movement of the spray gun body 21, further improving the polishing efficiency of the workpiece 2000.

[0045] It is understood that in some other embodiments, when using this clamping device 300, the clamping device 300 can be separated from the sandblasting machine body 100. The clamping device 300 can be held by hand, so that each workpiece 2000 on the clamping device 300 faces the spray gun body 21 in sequence, so that the abrasive sprayed by the spray gun body 21 can contact the surface of the workpiece 2000 to achieve the effect of polishing the workpiece 2000.

[0046] This clamping device 300 can simultaneously hold multiple workpieces 2000, with the workpieces 2000 spaced apart from each other. When using a polishing device 1000 equipped with this clamping device 300 to spray abrasive onto the workpieces 2000, the clamping device 300 can be rotated to ensure full contact between the abrasive and the workpieces 2000. This clamping device 300 can clamp multiple workpieces 2000 at once, improving the efficiency of polishing the workpieces 2000.

[0047] Reference Figure 2 and Figure 3 In some embodiments, the rotating disk 3111 has a rotating hole 3111a along its own axial direction, and multiple rotating holes 3111a are arranged sequentially at intervals along the circumference of the connecting post 313; one rotating hole 3111a corresponds to one connecting component 32. The connecting component 32 also includes a rotation shaft 322, which is inserted into the rotating hole 3111a and rotates in cooperation with the rotating hole 3111a.

[0048] The end wall of the rotating shaft 322 near the support base 312 is provided with a positioning hole 3221 along the axial direction of the rotating shaft 322 itself; the connecting member 321 is an elastic sleeve 3211, which is inserted into the positioning hole 3221, and the outer peripheral wall of the elastic sleeve 3211 elastically abuts against the inner peripheral wall of the positioning hole 3221, so that the elastic sleeve 3211 and the rotating shaft 322 are connected to each other.

[0049] Reference Figure 3 and Figure 4 For example, the elastic sleeve 3211 is a steel sleeve; both ends of the elastic sleeve 3211 have deformation notches 3211a that penetrate the inner peripheral wall of the elastic sleeve 3211. Multiple deformation notches 3211a are spaced apart along the circumference of the elastic sleeve 3211, and each deformation notch 3211a penetrates the end wall of the corresponding end of the elastic sleeve 3211. The deformation notches 3211a reduce the structural strength of the elastic sleeve 3211, facilitating elastic deformation of the elastic sleeve 3211, thereby facilitating the insertion of one end of the elastic sleeve 3211 into the positioning hole 3221, so that the outer peripheral wall of the elastic sleeve 3211 elastically abuts against the inner peripheral wall of the positioning hole 3221.

[0050] It is understood that the workpiece 2000 can be inserted into the end of the elastic sleeve 3211 away from the rotation axis 322, so that the inner peripheral wall of the elastic sleeve 3211 elastically abuts against the peripheral wall of the workpiece 2000, thereby connecting the workpiece 2000 and the elastic sleeve 3211. When disassembling the workpiece 2000, forcefully pulling the workpiece 2000 will disengage it from the elastic sleeve 3211. Similarly, forcefully pulling the elastic sleeve 3211 will remove it, allowing for replacement with an elastic sleeve 3211 of the appropriate specification according to the thickness of the workpiece 2000.

[0051] In other embodiments, the connector 321 can also be a vacuum adsorption structure or a clamping structure, as long as the workpiece 2000 can be detachably connected to the connector 321. For example, the connector 321 can be a vacuum suction cup or a spring clamp.

[0052] Reference Figure 3 The base 311 also includes a rotation drive assembly 3113, which is connected to and configured to drive the multiple rotation axes 322 to rotate. The rotation drive assembly 3113 enables each rotation axis 322 to rotate about its own axis, thereby causing the workpiece 2000 to rotate on its own axis while revolving with the rotating disk 3111. This ensures that the peripheral wall of the workpiece 2000 makes full contact with the abrasive, further improving the polishing effect and efficiency of the workpiece 2000.

[0053] In some embodiments, the rotation drive assembly 3113 includes a fixed gear 3113a and a plurality of driven gears 3113b. The fixed gear 3113a is connected to the mounting portion 3112, and one driven gear 3113b corresponds to one rotation shaft 322. Each driven gear 3113b is connected to its corresponding rotation shaft 322 and meshes with the fixed gear 3113a. Exemplarily, the fixed gear 3113a is an internal gear, and the mounting portion 3112 and the fixed gear 3113a are integrally machined together. In other embodiments, the fixed gear 3113a can be fixedly connected to the mounting portion 3112 by bolts. Figure 3 The dotted line on the peripheral wall of the fixed gear 3113a is used to separate the fixed gear 3113a and the mounting part 3112.

[0054] When the rotating disk 3111 rotates, it drives the rotation shaft 322 to move, causing the driven gear 3113b to move relative to the fixed gear 3113a. This allows the driven gear 3113b to rotate around its own axis, causing the corresponding rotation shaft 322 to rotate around its own axis, thereby achieving the effect of rotating the workpiece 2000. In some embodiments, the fixed gear 3113a can be an external gear.

[0055] In other embodiments, the rotation drive assembly 3113 may be multiple motors, one motor corresponding to one rotation shaft 322. Each motor is connected to the rotating disk 3111 and each motor is configured to drive the corresponding rotation shaft 322 to rotate, so as to achieve the effect of the rotation shaft 322 driving the workpiece 2000 to rotate.

[0056] Reference Figure 3 and Figure 5 In some embodiments, the connecting assembly 32 further includes a clamping member 323, which includes an elastic portion 3231 and two clamping portions 3232. The elastic portion 3231 connects the two clamping portions 3232 and is configured to bring the two clamping portions 3232 close to each other so that the two clamping portions 3232 respectively clamp both sides of the workpiece 2000. Exemplarily, the two clamping portions 3232 are rotatably connected, the elastic portion 3231 is a spring, the elastic portion 3231 is disposed between the two clamping portions 3232, and both ends of the elastic portion 3231 abut against the ends of the two clamping portions 3232, such that the ends of the two clamping portions 3232 away from the elastic portion 3231 are pressed together.

[0057] The clamping member 323 is located on the side of the support base 312 opposite to the rotating disk 3111, and the clamping part 3232 is configured to abut against the side of the support base 312 opposite to the rotating disk 3111 along the length direction of the connecting column 313. When the workpiece 2000 is subjected to the abrasive force at the part located between the support base 312 and the elastic sleeve 3211, the workpiece 2000 tends to bend under the force, causing the clamping part 3232 to abut against the support base 312; the support base 312 has the effect of stopping the clamping part 3232, thereby reducing the risk of bending deformation of the workpiece 2000.

[0058] In some embodiments, the clamping member 323 further includes an extension 3233 connected to the clamping member 3232. The extension 3233 has a receiving groove 3233a for accommodating the workpiece 2000, and the extension 3233 is inserted into the support hole 3122 and rotatably engages with the support hole 3122. Exemplarily, each clamping member 323 has two extensions 3233, one extension 3233 corresponding to one clamping member 3232, and each clamping member 3232 is connected to its corresponding clamping member 3232. When the two clamping members 3232 clamp the workpiece 2000, the workpiece 2000 is accommodated in the receiving groove 3233a, and the two corresponding extensions 3233 abut against each other and are cylindrical. The extension 3233 can isolate the workpiece 2000 from the support base 312, reducing the risk of the workpiece 2000 being scratched by the support base 312 during rotation.

[0059] In other embodiments, each clamping member 323 has an extension 3233, which is generally cylindrical and has a receiving groove 3233a inside; a notch for moving the workpiece 2000 into the receiving groove 3233a may be provided on the outer peripheral wall of the extension 3233.

[0060] In some embodiments, the peripheral wall of the support base 312 is provided with a plurality of clearance notches 3123, each clearance notch 3123 corresponding to a support hole 3122, and each clearance notch 3123 communicating with the corresponding support hole 3122. The clearance notch 3123 is configured to allow the workpiece 2000 to move into or out of the support hole 3122. When installing the workpiece 2000, after the two clamping portions 3232 of the clamping member 323 clamp the workpiece 2000 together, the workpiece 2000 is moved from the clearance notch 3123 into the support hole 3122, and then the workpiece 2000 is moved toward the rotating disk 3111, so that the end of the workpiece 2000 near the rotating disk 3111 is connected to the elastic sleeve 3211. At this time, the extension portion 3233 is inserted into the support hole 3122 and rotates with the support hole 3122.

[0061] Furthermore, those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the essential spirit and scope of this application fall within the scope of this application's disclosure.

Claims

1. A clamping device for fixing a workpiece to be processed; characterized in that, The clamping device includes: A base assembly, comprising a base, a support base, and a connecting column, wherein the base and the support base are respectively disposed at both ends of the connecting column and are respectively connected to the connecting column; Multiple connecting components are arranged sequentially at intervals along the circumference of the connecting column. Each connecting component is configured to connect one workpiece. Each connecting component includes a connector, which is rotatably connected to the base and configured to detachably connect one end of the workpiece. The support base has multiple support holes along the length of the connecting column, with one support hole corresponding to one connector. The support holes are configured to accommodate a portion of the workpiece.

2. The clamping device according to claim 1, characterized in that, The connecting assembly further includes a clamping member, which includes an elastic portion and two clamping portions. The elastic portion connects the two clamping portions and is configured to bring the two clamping portions close to each other so that the two clamping portions clamp the two sides of the workpiece respectively. The clamping portions are configured to abut against the side of the support seat opposite to the base along the length direction of the connecting column.

3. The clamping device according to claim 2, characterized in that, The clamping member further includes an extension portion connected to the clamping portion. The extension portion is provided with a receiving groove for accommodating the workpiece. The extension portion is inserted into the support hole and rotates with the support hole. The peripheral wall of the support base is provided with a plurality of clearance notches. One clearance notch corresponds to one support hole. Each clearance notch communicates with the corresponding support hole. The clearance notch is configured to allow the workpiece to move into or out of the support hole.

4. The clamping device according to claim 1, characterized in that, The base includes a rotating disk and a self-rotation drive assembly. The rotating disk is connected to the connecting column, and the connecting member is rotatably connected to the rotating disk. The self-rotation drive assembly connects to multiple connecting members and is configured to drive the multiple connecting members to rotate.

5. The clamping device according to claim 4, characterized in that, The base also includes a mounting part, which is rotatably connected to the rotating disk. The self-rotation drive assembly includes a fixed gear and a plurality of driven gears. The fixed gear is connected to the mounting part. One driven gear corresponds to one connecting member. Each driven gear is connected to the corresponding connecting member and meshes with the fixed gear.

6. The clamping device according to claim 4, characterized in that, The connecting assembly also includes a rotating shaft, which is rotatably connected to the rotating disk. The rotating shaft has a positioning hole along its own axial direction. The connecting member is an elastic sleeve, which is inserted into the positioning hole, and the outer peripheral wall of the elastic sleeve elastically abuts against the inner peripheral wall of the positioning hole.

7. The clamping device according to claim 1, characterized in that, The connector is an elastic sleeve, one end of which is rotatably connected to the base, and the other end of which is fitted onto the workpiece, with the inner circumferential wall of the elastic sleeve elastically abutting against the workpiece.

8. The clamping device according to claim 7, characterized in that, The outer peripheral wall of the elastic sleeve is provided with a deformation notch that penetrates the inner peripheral wall of the elastic sleeve, and the deformation notch penetrates the end wall of the elastic sleeve near the support.

9. A polishing device, comprising a sandblasting machine body and a spray gun assembly, characterized in that, The polishing equipment further includes a clamping device as described in any one of claims 1 to 8, wherein at least one of the base, the connecting column, and the support seat of the clamping device is connected to the sandblasting machine body, the sandblasting machine body is configured to drive the base to rotate about the axis of the connecting column, and the spray gun device connected to the sandblasting machine body is configured to spray abrasive onto the workpiece.

10. The polishing equipment according to claim 9, characterized in that, The spray gun device includes a spray gun body and a moving drive assembly. The moving drive assembly connects the spray gun body and the sandblasting machine body. The moving drive assembly is configured to drive the spray gun body to move along the length direction of the connecting column of the clamping device.

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