Bracelet inner diameter polishing and grinding machine

Abstract

The utility model provides a polishing and grinding machine for the inner diameter of a bracelet. The clamping mechanism is arranged on the base table and comprises a first motor, a rotating disc and a plurality of clamps, the clamps are movably connected to the rotating disc, a driving part of the first motor is arranged on the rotating disc, the grinding assembly comprises a fixing rod, a grinding rod and an elastic part, one end of the fixing rod is arranged on the base table, and the other end of the fixing rod is arranged on the rotating disc. One end of the fixing rod is fixedly connected with the clamp, the other end of the fixing rod is fixedly connected with the grinding rod, the grinding rod is arranged among the clamps, one end of the elastic piece is arranged on the fixing rod, the other end of the elastic piece is arranged on the elastic piece, and the grinding rod abuts against the bracelet for grinding. According to the bracelet inner diameter polishing and grinding machine, through the design of the clamping mechanism, it is guaranteed that the bracelet is firmly clamped on the grinding equipment, shaking in the grinding process is prevented, and it is guaranteed that force borne by the bracelet in the grinding process is consistent through the elastic piece on the grinding assembly. The problem of uneven polishing possibly caused by uneven force in manual operation is effectively solved.

Description

Technical Field

[0001] The present application relates to the field of jewelry processing devices, and in particular to a bracelet inner diameter polishing and grinding machine. Background Art

[0002] At present, the inner diameter of bracelets is usually polished by traditional manual grinding. In this way, the craftsman needs to manually use a grinder to grind the inner diameter of the bracelet, which has some significant problems. First, due to differences in the skills and experience of craftsmen, manual grinding makes it difficult to ensure that the inner diameter of each bracelet can reach the same degree of polishing, making it difficult to ensure product quality. Secondly, manual grinding requires a lot of human resources and time, which is not only inefficient but also costly. In addition, due to factors such as fatigue and decreased concentration in manual operation, operational errors are prone to occur, leading to an increase in the rate of defective products.

[0003] In order to improve the efficiency and quality of manual polishing, some hand tools and auxiliary equipment have been introduced, such as handheld grinders, rotating platforms, etc. However, these existing technologies do not solve the fundamental problem because they are still limited by manual operation and it is difficult to ensure that the inner diameter polishing effect of each bracelet is consistent. Moreover, due to the subjectivity and uncertainty of manual operation, these technologies still have certain limitations in improving efficiency and reducing costs. Utility Model Content

[0004] In view of this, it is necessary to provide a polishing machine that can evenly polish the inner diameter of the bracelet to solve the above problems.

[0005] The embodiment of the present application provides a bracelet inner diameter polishing and grinding machine, comprising:

[0006] abutment;

[0007] A clamping mechanism is disposed on the base, comprising a first motor, a turntable and a plurality of clamps, wherein the plurality of clamps are movably connected to the turntable, and a driving member of the first motor is disposed on the turntable for driving the turntable to rotate;

[0008] The polishing assembly includes a fixing rod, a polishing rod and an elastic member, wherein one end of the fixing rod is arranged on the base, and the other end is fixedly connected to the polishing rod, and the polishing rod is arranged between a plurality of the clamps; one end of the elastic member is arranged on the fixing rod, and the other end is arranged on the elastic member, so as to enable the polishing rod to support the bracelet for polishing.

[0009] In at least one embodiment of the present application, each of the clamps includes a connecting rod and a first part and a second part that fit together, one end of the connecting rod is provided on the turntable, and the other end fits into the second part, the first part is provided on a side close to the polishing rod, and is provided with a snap-fit ​​groove for fitting the bracelet.

[0010] In at least one embodiment of the present application, the clamping mechanism further includes a pushing rod, which is disposed on the turntable and fits the connecting rod. When the pushing rod is subjected to force, the pushing rod pushes the connecting rod to open the clamp.

[0011] In at least one embodiment of the present application, the pushing rod further includes an elastic member, which is disposed on the pushing rod and abuts against the turntable, and is used to reset the pushing rod so that the clamp clamps the bracelet.

[0012] In at least one embodiment of the present application, the push rod is disposed at the center of the turntable.

[0013] In at least one embodiment of the present application, the grinder also includes a swing assembly, including a swing rod and a driving rod, one end of the driving rod is arranged on the base, and the other end is movably connected to the swing rod, and the swing rod is fixedly connected to the fixed rod at one end away from the driving rod.

[0014] In at least one embodiment of the present application, the swing assembly also includes a second motor, a driving wheel and a driven wheel, the second motor is arranged between the base and the driving rod, the driving member of the second motor is connected to the driving shaft of the driving wheel, and the driven wheel is arranged on the swing rod and meshes with the driving wheel.

[0015] In at least one embodiment of the present application, the driving wheel is perpendicular to the driven wheel, and the swing rod makes a circular motion with the axis of the driven wheel as the center, so as to drive the polishing assembly to polish the inner annular surface of the bracelet.

[0016] In at least one embodiment of the present application, the driving wheel is perpendicular to the driven wheel, and the swing rod makes a circular motion with the axis of the driven wheel as the center, so as to drive the polishing assembly to polish the inner annular surface of the bracelet.

[0017] In at least one embodiment of the present application, the water outlet pipe also includes a nozzle, which is arranged at one end of the water outlet pipe away from the water tank, and the nozzle is arranged above the clamp, and is used to spray water mist to lower the temperature of the bracelet during polishing.

[0018] The bracelet inner diameter polishing and grinding machine provided above ensures that the bracelet is evenly and firmly clamped on the grinding equipment through the design of the clamping mechanism, preventing vibration or shaking during the grinding process, ensuring that the bracelet remains relatively still during the entire grinding process, and the design of the elastic parts on the grinding assembly ensures that the force applied to the bracelet during the grinding process is consistent. This effectively eliminates the problem of uneven polishing that may be caused by uneven force in manual operation, and the presence of the elastic parts makes the grinding equipment more adaptive and can adapt to bracelets of different hardness or shapes. This improves the applicability of the equipment to different bracelet materials and structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of a bracelet inner diameter polishing and grinding machine in one embodiment of the present application.

[0020] Figure 2 for Figure 1 A partial enlarged view of the bracelet inner diameter polishing and grinding machine.

[0021] Figure 3 for Figure 1 A partially enlarged cross-sectional view of the bracelet inner diameter polishing and grinding machine.

[0022] Figure 4 for Figure 1 Schematic diagram of the grinding component and the swinging component of the bracelet inner diameter polishing and grinding machine.

[0023] Figure 5 for Figure 1 A cross-sectional view of the swing assembly of the bracelet inner diameter polishing and grinding machine.

[0024] Main component symbols

[0025] 100. Bracelet inner diameter polishing and grinding machine; 10. Base; 20. Clamping mechanism; 21. First motor; 22. Turntable; 23. Clamp; 231. Connecting rod; 232. First part; 232a. Engaging groove; 233. Second part; 24. Push rod; 241. Elastic block; 30. Polishing assembly; 31. Fixed rod; 32. Polishing rod; 33. Elastic member; 40. Swinging assembly; 41. Swinging rod; 42. Driving rod; 43. Second motor; 44. Driving wheel; 45. Driven wheel; 50. Cooling assembly; 51. Water tank; 52. Water outlet pipe; 53. Spout. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0027] It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "located on" another component, it may be directly located on the other component or there may be a central component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0028] The embodiment of the present application provides a bracelet inner diameter polishing and grinding machine, comprising:

[0029] abutment;

[0030] A clamping mechanism is disposed on the base, comprising a first motor, a turntable and a plurality of clamps, wherein the plurality of clamps are movably connected to the turntable, and a driving member of the first motor is disposed on the turntable for driving the turntable to rotate;

[0031] The polishing assembly includes a fixing rod, a polishing rod and an elastic member, wherein one end of the fixing rod is arranged on the base, and the other end is fixedly connected to the polishing rod, and the polishing rod is arranged between a plurality of the clamps; one end of the elastic member is arranged on the fixing rod, and the other end is arranged on the elastic member, so as to enable the polishing rod to support the bracelet for polishing.

[0032] The bracelet inner diameter polishing and grinding machine provided above ensures that the bracelet is evenly and firmly clamped on the grinding equipment through the design of the clamping mechanism, preventing vibration or shaking during the grinding process, ensuring that the bracelet remains relatively still during the entire grinding process, and the design of the elastic parts on the grinding assembly ensures that the force applied to the bracelet during the grinding process is consistent. This effectively eliminates the problem of uneven polishing that may be caused by uneven force in manual operation, and the presence of the elastic parts makes the grinding equipment more adaptive and can adapt to bracelets of different hardness or shapes. This improves the applicability of the equipment to different bracelet materials and structures.

[0033] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0034] See also Figure 1-Figure 5The embodiment of the present application provides a bracelet inner diameter polishing and grinding machine 100, including a base 10; a clamping mechanism 20 is arranged on the base 10, including a first motor 21, a turntable 22 and a plurality of clamps 23, and the plurality of clamps 23 can be movably connected to the turntable 22, and a driving member of the first motor 21 is arranged on the turntable 22, for driving the turntable 22 to rotate; a grinding assembly 30 includes a fixed rod 31, a grinding rod 32 and an elastic member 33, one end of the fixed rod 31 is arranged on the base 10, and the other end is fixedly connected to the grinding rod 32, the grinding rod 32 is arranged between the plurality of clamps 23, one end of the elastic member 33 is arranged on the fixed rod 31, and the other end is arranged on the elastic member 33, for making the grinding rod 32 resist the bracelet for grinding.

[0035] Specifically, a stable support is provided for the entire grinder to ensure that the machine remains balanced during operation. Beneficial effects include improving the stability of the equipment and ensuring accuracy and controllability during the grinding process. The clamping and rotation of the bracelet are achieved by the first motor 21, the turntable 22 and a plurality of clamps 23. The clamp 23 is movably connected to the turntable 22, and the drive of the first motor 21 causes the turntable 22 to rotate, thereby driving the bracelet to rotate in the clamp 23. This ensures that the bracelet can be uniformly stressed and rotated during the polishing process, and enhances the consistency of polishing. The design of the clamping mechanism 20 helps to maintain the relative stillness of the bracelet, prevent vibration, ensure that the bracelet rotates evenly in the clamp 23, and enhance the consistency and uniformity of polishing.

[0036] Furthermore, it is composed of a fixed rod 31, a polishing rod 32 and an elastic member 33. One end of the fixed rod 31 is connected to the base 10, and the other end is fixedly connected to the polishing rod 32. The elastic member 33 is connected between the fixed rod 31 and the polishing rod 32, and is used to adjust and provide a consistent polishing force. This ensures the uniformity and consistency of the polishing. The design of the polishing assembly 30 helps to support the polishing of the bracelet, and provides a consistent polishing force through the elastic member 33, eliminating the problem of uneven polishing that may be caused by uneven force in manual operation, and ensuring the quality and consistency of the polishing.

[0037] Furthermore, when the grinder is started, the first motor 21 in the clamping mechanism 20 is activated, and its driving member is connected to the turntable 22. The turntable 22 begins to rotate, and the clamp 23 is movably connected to multiple positions of the turntable 22, and the clamp 23 rotates therewith. The bracelet is firmly fixed by the clamp 23, and as the turntable 22 rotates, the bracelet begins to rotate evenly in the clamp 23. The elastic member 33 between the fixed rod 31 of the grinding assembly 30 and the grinding rod 32 enables the grinding rod 32 to resist the bracelet for grinding. This ensures that the bracelet is subjected to consistent force during the grinding process, avoiding the problem of uneven polishing that may be caused by uneven force in manual operation. The bracelet rotates in the clamp 23 and is subjected to consistent grinding force, thereby achieving uniform polishing of the inner diameter of the bracelet.

[0038] In a specific embodiment, each of the clamps 23 includes a connecting rod 231 and a first part 232 and a second part 233 that fit together. One end of the connecting rod 231 is arranged on the turntable 22, and the other end fits the second part 233. The first part 232 is arranged on a side close to the polishing rod 32 and is provided with a snap-fitting groove 232a for snapping the bracelet.

[0039] Specifically, the connecting rod 231 of the clamp 23 and the mutual fitting design of the two parts enable the clamp 23 to be tightly fixed on the turntable 22, and ensure the structural stability of the clamp 23. The reliability and durability of the clamp 23 are improved, ensuring that the bracelet can be clamped safely and firmly. The connecting rod 231 is connected to the turntable 22 through one end to ensure that the clamp 23 can rotate with the rotation of the turntable 22, thereby achieving uniform rotation of the bracelet. The other end of the connecting rod 231 is mutually fitted with the second part 233 to keep the overall structure of the clamp 23 stable. The design of the first part 232 with a snap-fit ​​groove 232a can snap the bracelet, so that the bracelet is firmly clamped by the clamp 23 to prevent it from moving or swinging during the polishing process.

[0040] Furthermore, when the clamp 23 and the bracelet are placed on the turntable 22, one end of the connecting rod 231 is connected to the turntable 22 to ensure that the clamp 23 can rotate with the rotation of the turntable 22. The first part 232 is located on the side of the clamp 23 close to the polishing rod 32 and is provided with a snap-fit ​​groove 232a. When the grinder is started, the clamp 23 drives the bracelet to rotate evenly through the rotation of the turntable 22. The design of the snap-fit ​​groove 232a allows the bracelet to be snapped onto the clamp 23 to prevent the bracelet from moving during the polishing process and keep it relatively still. Through this design, the clamp 23 can firmly clamp the bracelet, so that the bracelet can be subjected to consistent force during the polishing process, thereby improving the consistency and uniformity of the polishing.

[0041] In a specific embodiment, the clamping mechanism 20 further includes a pushing rod 24, which is disposed on the turntable 22 and fits the connecting rod 231. When the pushing rod 24 is subjected to force, the pushing rod 24 pushes the connecting rod 231 to open the clamp 23.

[0042] Specifically, the push rod 24, as a part of the clamping mechanism 20, mainly functions to push the connecting rod 231 when needed to open the clamp 23. Beneficial effects include being able to control the opening and closing state of the clamp 23, so as to make it easier to place or remove the bracelet, and to adjust the state of the clamp 23 before and after polishing. The push rod 24 is directly connected to the turntable 22 and fits the connecting rod 231, ensuring that the push rod 24 can stably transmit the driving force, so that the connecting rod 231 is subjected to force to push the clamp 23, and realize the rapid and controllable opening and closing of the clamp 23 to adapt to bracelets of different sizes or shapes.

[0043] Furthermore, when the push rod 24 is acted upon by an external force, the connecting rod 231 is designed to fit the connecting rod 231 so that the connecting rod 231 is pushed, thereby opening the clamp 23. This ensures that the bracelet can be easily put into or taken out of the clamp 23, thereby improving production efficiency. When the state of the clamp 23 needs to be adjusted, an external force is applied to the push rod 24, which can be done manually or automatically. When the push rod 24 is acted upon by a force, the push rod 24 transfers the force to the connecting rod 231. The connecting rod 231 is acted upon by the driving force and moves, thereby opening the clamp 23. The bracelet can be easily put into or taken out of the clamp 23, and after completion, the clamp 23 can be readjusted to the required state, ready for the next round of polishing.

[0044] In a specific embodiment, the push rod 24 further includes an elastic block 241, which is disposed on the push rod 24 and abuts against the turntable 22, and is used to reset the push rod 24 so that the clamp 23 clamps the hand.

[0045] Specifically, the design of the elastic block 241 enables the push rod 24 to have a certain elasticity, so that the push rod 24 can return to its original position after being subjected to an external force. After adjusting the state of the clamp 23, it is ensured that the push rod 24 can be reset in time, and the clamp 23 is kept in a stable state, so that the clamp 23 can clamp the bracelet. The elastic block 241 is arranged on the push rod 24 and fits the turntable 22, so that after the push rod 24 is subjected to an external force, the elastic block 241 can fit closely with the turntable 22, ensuring the stable reset of the push rod 24. This is beneficial to maintaining the consistency and accuracy of the clamp 23, so that it is always in a controllable state when clamping the bracelet.

[0046] Furthermore, the resetting action of the elastic block 241 ensures that the push rod 24 can return to its original position in time after being subjected to force, so that the clamp 23 can clamp the bracelet. Before each polishing, it is ensured that the clamp 23 can clamp the bracelet accurately and quickly, ensuring the consistency and stability of the polishing effect. When the push rod 24 is subjected to an external force to open the clamp 23, the elastic block 241 plays a role and stores a certain amount of elastic energy. When the external force disappears, the elastic block 241 pushes the push rod 24 back to its original position through the elastic force, ensuring that the clamp 23 can be reset in time. After the push rod 24 is reset, the clamp 23 can clamp the bracelet and prepare for the next round of polishing.

[0047] In one specific embodiment, the push rod 24 is disposed at the center of the turntable 22 .

[0048] Specifically, the push rod 24 is arranged at the center of the turntable 22, so that when the push rod 24 is subjected to external force, the pushing force can be evenly transmitted to the clamp 23. The stability and uniformity of the clamp 23 are ensured, so that the clamp 23 can be subjected to uniform force at the center position, thereby ensuring uniform clamping and polishing of the bracelet in the clamp 23.

[0049] In a specific embodiment, the grinder also includes a swing assembly 40, including a swing rod 41 and a driving rod 42, one end of the driving rod 42 is arranged on the base 10, and the other end is movably connected to the swing rod 41, and the end of the swing rod 41 away from the driving rod 42 is fixedly connected to the fixed rod 31.

[0050] Specifically, the design of the swing assembly 40 enables the swing rod 41 to generate a swing motion through the action of the driving rod 42 during the polishing process. This is beneficial to make the polishing rod 32 swing on the bracelet surface, increase the coverage area of ​​the polishing, and improve the uniformity and efficiency of the polishing.

[0051] Furthermore, the driving rod 42 is connected to the base 10 at one end and is movably connected to the swing rod 41 at the other end, so that the swing rod 41 can generate a swinging motion under the action of the driving rod 42. This is beneficial to realize the swinging of the polishing rod 32 and improve the flexibility and diversity of polishing. The end of the swing rod 41 away from the driving rod 42 is fixedly connected to the fixed rod 31, ensuring that the swing rod 41 has a certain fixed point when moving, making the swinging motion more stable and controllable. It is ensured that the motion trajectory of the polishing rod 32 during the swinging process is accurate, thereby improving the accuracy of polishing.

[0052] In a specific embodiment, the swing assembly 40 also includes a second motor 43, a driving wheel 44 and a driven wheel 45. The second motor 43 is arranged between the base 10 and the driving rod 42. The driving member of the second motor 43 is connected to the driving shaft of the driving wheel 44. The driven wheel 45 is arranged on the swing rod 41 and meshes with the driving wheel 44.

[0053] Specifically, the second motor 43 is used as a power source to realize the swinging motion of the swing rod 41 through the connected driving wheel 44 and the driven wheel 45. This is beneficial to provide controllable power, making the swinging motion more accurate and stable, and can achieve different swinging frequencies and amplitudes by adjusting the rotation speed of the second motor 43. The second motor 43 is designed to be located between the base 10 and the driving rod 42, and the power is transmitted through the connected driving wheel 44 and the driven wheel 45 to ensure that the entire swing assembly 40 remains relatively balanced and stable during movement. This is beneficial to improving the movement efficiency of the swing assembly 40, reducing friction and vibration during movement, and ensuring the stability of polishing.

[0054] Furthermore, the second motor 43 is connected to the drive shaft of the driving wheel 44 through its driving member to achieve power transmission. It is ensured that the power provided by the second motor 43 can be effectively transmitted to the swing assembly 40, ensuring the controllability and accuracy of the swinging motion. The driven wheel 45 transmits the power to the swing rod 41 through meshing with the driving wheel 44, thereby achieving the swinging motion. It is ensured that the swing rod 41 is subjected to uniform power, making the swinging motion more stable and consistent.

[0055] In a specific embodiment, the driving wheel 44 is perpendicular to the driven wheel 45, and the swing rod 41 makes an arc motion with the central axis of the driven wheel 45 as the center, so as to drive the polishing assembly 30 to polish the inner ring surface of the bracelet.

[0056] Specifically, the layout design of the driving wheel 44 being perpendicular to the driven wheel 45 makes the transmission mode between the two more stable. This is beneficial to ensure the transmission efficiency, reduce the energy loss caused by the change of transmission direction, and ensure the stability of the grinder during operation. The swing rod 41 moves in an arc with the central axis of the driven wheel 45 as the center, making the swing motion more natural and the motion trajectory more regular. This is beneficial to improve the uniformity of polishing and ensure that the inner ring surface of the bracelet is fully and uniformly polished.

[0057] Furthermore, the driving wheel 44 is perpendicular to the driven wheel 45 to ensure the stability of the transmission direction. The second motor 43 is started, and the driving wheel 44 starts to rotate. The rotating driving wheel 44 transmits power to the swing rod 41 by meshing with the driven wheel 45. The swing rod 41 moves in an arc with the central axis of the driven wheel 45 as the center, driving the polishing assembly 30 to swing. The swinging motion of the swing assembly 40 causes the polishing rod 32 to swing regularly on the inner ring surface of the bracelet, thereby achieving comprehensive polishing of the inner ring surface of the bracelet.

[0058] In a specific embodiment, the grinder also includes a cooling component 50, including a water tank 51 and a water outlet pipe 52. The water tank 51 is arranged on the side of the base 10, and one end of the water outlet pipe 52 is arranged in the water tank 51, and the other end is arranged above the base 10, which is used to cool the bracelet.

[0059] Specifically, the design of the cooling component 50 is intended to cool the bracelet through the synergistic effect of the water tank 51 and the water outlet pipe 52. This is beneficial to prevent the bracelet from overheating due to friction during the polishing process, avoid damage or deformation of the material, and improve the effect and quality of polishing. The water tank 51 is designed on the side of the base 10 to facilitate the storage and management of water. The location of the water tank 51 avoids interference with the polishing component 30 and ensures the compactness and stability of the equipment. The design of the water outlet pipe 52 allows water to flow out of the water tank 51 and cool the bracelet during the polishing process. The water outlet pipe 52 is arranged above the base 10, so that the water can effectively cover the polishing area, ensuring that the bracelet is fully cooled.

[0060] In a specific embodiment, the water outlet pipe 52 also includes a nozzle 53, which is disposed at one end of the water outlet pipe 52 away from the water tank 51. The nozzle 53 is disposed above the clamp 23 and is used to spray water mist to lower the temperature of the bracelet during polishing.

[0061] Specifically, the design of the nozzle 53 enables water to be sprayed in the form of a spray, thereby achieving a more uniform cooling of the bracelet. This is beneficial to improving the uniformity of polishing, ensuring that the entire bracelet surface is appropriately cooled, and avoiding deformation or damage caused by high temperature. The nozzle 53 is located above the clamp 23 to ensure that the sprayed water mist can cover the polishing area above the clamp 23, maintain the cooling effect of the polishing area during the polishing process, and improve the comprehensiveness of polishing.

[0062] The above is only an implementation method of the present application. It should be pointed out that a person skilled in the art can make improvements without departing from the inventive concept of the present application, but these improvements are within the scope of protection of the present application.

Claims

1. Bracelet inner diameter polishing machine, characterized in that: include: abutment; A clamping mechanism is disposed on the base, comprising a first motor, a turntable and a plurality of clamps, wherein the plurality of clamps are movably connected to the turntable, and a driving member of the first motor is disposed on the turntable for driving the turntable to rotate; The polishing assembly includes a fixing rod, a polishing rod and an elastic member, wherein one end of the fixing rod is arranged on the base, and the other end is fixedly connected to the polishing rod, and the polishing rod is arranged between a plurality of the clamps; one end of the elastic member is arranged on the fixing rod, and the other end is arranged on the elastic member, so as to enable the polishing rod to support the bracelet for polishing.

2. The bracelet inner diameter polishing and grinding machine according to claim 1, characterized in that: Each of the clamps includes a connecting rod and a first part and a second part that fit together. One end of the connecting rod is arranged on the turntable, and the other end fits the second part. The first part is arranged on a side close to the polishing rod and is provided with a snap-fitting groove for snapping on the bracelet.

3. The bracelet inner diameter polishing and grinding machine according to claim 2, characterized in that: The clamping mechanism also includes a pushing rod, which is arranged on the rotating disk and fits the connecting rod. When the pushing rod is subjected to force, the pushing rod pushes the connecting rod to open the clamp.

4. The bracelet inner diameter polishing and grinding machine according to claim 3, characterized in that: The pushing rod also includes an elastic block, which is arranged on the pushing rod and fits the turntable, and is used to reset the pushing rod so that the clamp clamps the bracelet.

5. The bracelet inner diameter polishing and grinding machine according to claim 4, characterized in that: The pushing rod is arranged at the center of the rotating disk.

6. The bracelet inner diameter polishing and grinding machine according to claim 1, characterized in that: The grinder also includes a swing assembly, including a swing rod and a driving rod, one end of the driving rod is arranged on the base, and the other end is movably connected to the swing rod, and one end of the swing rod away from the driving rod is fixedly connected to the fixed rod.

7. The bracelet inner diameter polishing and grinding machine according to claim 6, characterized in that: The swing assembly also includes a second motor, a driving wheel and a driven wheel. The second motor is arranged between the base and the driving rod. The driving member of the second motor is connected to the driving shaft of the driving wheel. The driven wheel is arranged on the swing rod and meshes with the driving wheel.

8. The bracelet inner diameter polishing and grinding machine according to claim 7, characterized in that: The driving wheel is perpendicular to the driven wheel, and the swing rod moves in an arc with the central axis of the driven wheel as the center, so as to drive the polishing assembly to polish the inner ring surface of the bracelet.

9. The bracelet inner diameter polishing and grinding machine according to claim 1, characterized in that: The grinder also includes a cooling component, including a water tank and a water outlet pipe. The water tank is arranged on the side of the base. One end of the water outlet pipe is arranged in the water tank, and the other end is arranged above the base for cooling the bracelet.

10. The bracelet inner diameter polishing and grinding machine according to claim 9, characterized in that: The water outlet pipe also includes a nozzle, which is arranged at one end of the water outlet pipe away from the water tank. The nozzle is arranged above the clamp and is used to spray water mist to reduce the temperature of the bracelet during polishing.

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