Precision grinding and polishing equipment for surface of watch movement

By designing a combination of conical toothed rings and semi-circular rotating blocks, the problem of unstable watch movement fixation was solved, enabling adaptive clamping and precise fixation of irregularly shaped movements, and improving the grinding and polishing effect.

CN223917518UActive Publication Date: 2026-02-17QINGDAO JAVELIN PRECISE IND CO LTD
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Patent Information

Application Number
CN202520571173.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-02-17
Estimated Expiration
2035-03-28

AI Technical Summary

Technical Problem

Existing watch movement fixing methods are not flexible and precise enough to adapt to watch movements of different shapes and sizes, especially irregularly shaped movements, which are prone to insecure fixing or damage during clamping.

Method used

A precision grinding and polishing device for watch movement surfaces is used, which utilizes a combination design of a conical toothed ring, a mating block, and a semi-circular rotating block to achieve adaptive clamping and fine-tuning of the watch movement, ensuring a firm and precise fixation.

Benefits of technology

It achieves flexible and precise fixation of watch movements, avoids damage to irregularly shaped movements during clamping, and improves the grinding and polishing effect and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a watch movement surface precise grinding and polishing device, and relates to the technical field of watch movement machining. And a positioning frame is fixedly mounted in front of the middle of the top of the equipment frame, a bevel gear ring is rotationally connected to the inner position of the positioning frame, and three sliding grooves are formed in the top of the positioning frame. Due to the fact that the three semicircular rotating blocks are rotationally connected with the inner side of the sliding frame, self-adaptive rotating fine adjustment can be conducted when the watch movement is clamped and fixed, the effect of self-adaptive position adjustment on the circumferential face position of the watch movement can be achieved, the situation that the watch movement is inconvenient to clamp due to the special shape is effectively avoided, and flexible and accurate fixing of the watch movement is achieved. The problems that an existing watch movement fixing mode is not flexible and accurate enough and is difficult to adapt to watch movements of different shapes and sizes, and especially for some special-shaped watch movements, fixing is not firm or the movement is damaged in the clamping process are solved.
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Description

Technical Field

[0001] This utility model belongs to the field of watch movement processing technology, and more specifically, it relates to a precision grinding and polishing equipment for the surface of watch movements. Background Technology

[0002] As the watch industry continues to develop, consumers have increasingly higher demands for the quality and precision of watches. As the core component of a watch, the precision of its surface directly affects the watch's performance and lifespan. In the manufacturing process of a watch movement, surface grinding and polishing are crucial steps.

[0003] Currently, existing watch movement surface grinding and polishing equipment on the market has some shortcomings:

[0004] The current method of securing watch movements is not flexible and precise enough, making it difficult to adapt to watch movements of different shapes and sizes. In particular, for some irregularly shaped watch movements, the clamping process can easily result in insecure securing or damage to the movement, thus affecting the effect and quality of grinding and polishing. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a precision grinding and polishing device for the surface of watch movements. This device solves the problem that existing methods for fixing watch movements are not flexible and precise enough, making it difficult to adapt to watch movements of different shapes and sizes. In particular, for some irregularly shaped watch movements, the device is prone to insecure fixing or damage to the movement during clamping.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A precision grinding and polishing device for watch movement surfaces includes a frame; a positioning frame is fixedly installed at the front center of the top of the frame, a bevel gear ring is rotatably connected to the inside of the positioning frame, a spiral groove is provided at the top of the bevel gear ring, three sliding grooves are provided on the top of the positioning frame, and a mating block is slidably connected in each of the three sliding grooves. The three mating blocks are arranged in a ring, and a delivery frame is fixedly installed on the top of each mating block. A slide is slidably connected to the top of the delivery frame, a semi-circular rotating block is rotatably provided on the inner side of each slide, and a threaded hole is provided on the outer side of the slide.

[0008] According to one embodiment of the present invention, a motor B is fixedly installed at the middle position of the front end of the positioning frame. A bevel gear is fixedly connected to the rotating shaft of the motor B. The bevel gear meshes with a bevel ring. The top of the bevel ring is provided with a spiral pattern, and the bottom of the mating block is provided with an arc pattern. The spiral pattern at the top of the bevel ring meshes with the arc pattern at the bottom of the mating block for transmission.

[0009] According to one embodiment of the present invention, a lifting frame is fixedly connected to the middle position of the top rear end of the equipment frame, the front end of the lifting frame is slidably connected to the rear end of the lifting platform, and a threaded hole is opened in the middle rear of the lifting platform.

[0010] According to one embodiment of the present invention, the top rear position of the equipment frame is fixedly connected to the bottom position of motor A, the shaft of motor A is threaded, and the shaft of motor A is located in the threaded hole of the lifting platform.

[0011] According to one embodiment of the present invention, the front end of the lifting platform is fixedly connected to the middle of the rear end of the grinding and polishing machine, the grinding and polishing machine is located directly above the positioning frame, and the rotating shaft of the grinding and polishing machine is provided with grinding and polishing discs.

[0012] According to one embodiment of the present invention, a screw is rotatably connected to the middle position of the outer side of the delivery frame, and the screw is located in the threaded hole on the outer side of the slide.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The starter motor B drives the bevel gear to rotate, which in turn causes the three mating blocks to slide in opposite directions within the positioning bracket groove until the three semi-circular rotating blocks clamp the circumference of the watch movement, fixing the watch movement directly below the polishing plate. At the same time, since the three semi-circular rotating blocks are rotatably connected to the inner side of the slide, they can make adaptive rotational fine adjustments when clamping and fixing the watch movement. This allows for adaptive position adjustment of the circumference of the watch movement, effectively avoiding the situation where the watch movement is inconvenient to clamp due to its irregular shape, and achieving flexible and precise fixing of the watch movement.

[0015] Even if the watch movement is not positioned correctly, the screw can be turned to adjust the sliding between the delivery carriage and the slide, ensuring that the three semi-circular rotating blocks are in contact with the circumference of the watch movement, which facilitates subsequent grinding and polishing. Attached Figure Description

[0016] Figure 1 This is a top view schematic diagram of the precision grinding and polishing equipment for the surface of a watch movement according to this utility model.

[0017] Figure 2 This is a schematic diagram of the left side of the precision grinding and polishing equipment for the surface of a watch movement according to this utility model.

[0018] Figure 3 This is a side view of the precision grinding and polishing equipment for the surface of a watch movement according to this utility model.

[0019] Figure 4 This is a schematic diagram of the overall half-section side view of the positioning frame of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Equipment frame; 101. Lifting frame; 102. Lifting platform; 103. Grinding and polishing machine; 104. Grinding and polishing disc; 105. Motor A; 2. Positioning frame; 201. Bevel gear ring; 202. Motor B; 203. Bevel gear; 204. Mating block; 205. Delivery frame; 206. Screw; 207. Slide; 208. Semi-circular rotating block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The use of terms such as "a," "an," or "the" in this utility model patent application specification and claims does not indicate a quantity limitation, but rather indicates the presence of at least one. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0025] Example:

[0026] As attached Figure 1 To be continued Figure 4 As shown:

[0027] This utility model provides a precision grinding and polishing device for the surface of a watch movement, including a device frame 1; a positioning frame 2 is fixedly installed at the front center of the top of the device frame 1, a bevel gear ring 201 is rotatably connected to the inside of the positioning frame 2, a spiral groove is provided at the top of the bevel gear ring 201, three sliding grooves are opened on the top of the positioning frame 2, and a mating block 204 is slidably connected in each of the three sliding grooves of the positioning frame 2. The three mating blocks 204 are arranged in a ring, and a delivery frame 205 is fixedly installed on the top of each mating block 204. A slide 207 is slidably connected to the top of the delivery frame 205, a semi-circular rotating block 208 is rotatably provided on the inner side of each slide 207, and a threaded hole is opened on the outer side of the slide 207. A motor B202 is fixedly installed at the middle of the front end of the equipment frame 1. A bevel gear 203 is fixedly connected to the shaft of the motor B202. The bevel gear 203 meshes with a bevel ring 201. The top of the bevel ring 201 is provided with a spiral pattern, and the bottom of the mating block 204 is provided with an arc pattern. The spiral pattern on the top of the bevel ring 201 and the arc pattern on the bottom of the mating block 204 engage for transmission. A lifting frame 101 is fixedly connected at the middle of the rear end of the top of the equipment frame 1. The front end of the lifting frame 101 is slidably connected to the rear end of the lifting platform 102. A threaded hole is opened at the middle rear of the lifting platform 102. The middle rear of the top of the equipment frame 1 is fixedly connected to the bottom of the motor A105. The shaft of the motor A105 is provided with a thread, and the shaft of the motor A105 is located in the threaded hole of the lifting platform 102.

[0028] The front end of the lifting platform 102 is fixedly connected to the middle of the rear end of the grinding and polishing machine 103. The grinding and polishing machine 103 is located directly above the positioning frame 2. The rotating shaft of the grinding and polishing machine 103 is equipped with a grinding and polishing disc 104. A screw 206 is rotatably connected to the middle of the outer side of the delivery frame 205. The screw 206 is located in the threaded hole on the outer side of the slide 207.

[0029] In use: Place the watch movement at the top center of the positioning frame 2. Then start the motor B202 to drive the bevel gear 203 to rotate. The bevel gear 203 meshes with the bevel ring 201, causing the three mating blocks 204 to slide in opposite directions in the groove of the positioning frame 2 until the inner side of the three semi-circular rotating blocks 208 clamps the circumferential surface of the watch movement, thus limiting and fixing the watch movement to the position directly below the grinding and polishing plate 104.

[0030] The three semi-circular rotating blocks 208 are rotatably connected to the inner side of the slide 207. When the three semi-circular rotating blocks 208 clamp and fix the watch movement in the middle position, they can make adaptive rotation and fine adjustment, which can achieve adaptive position adjustment of the watch movement's circumference and avoid the situation where the irregular shape of the watch movement is inconvenient to clamp.

[0031] After starting the motor A105, the motor A105's shaft engages with the threaded hole of the lifting platform 102, causing the lifting platform 102 to adjust its height at the front end of the lifting frame 101, thus adjusting the height of the polishing disc 104 so that it can easily fit against the top of the watch movement.

[0032] Although this application has been described with reference to the foregoing embodiments, those skilled in the art will understand that various changes can be made without departing from the spirit and scope of this application as defined by the appended claims. While this specification contains details of many specific implementations, these should not be construed as limiting the scope of the claims, but rather as descriptions of features specific to particular embodiments. The scope of this application is defined by the appended claims and their equivalents, and is not limited to the embodiments described above.

Claims

1. A precision grinding and polishing device for the surface of a watch movement, characterized in that: The equipment includes a frame (1); a positioning frame (2) is fixedly installed at the front center of the top of the frame (1). A beveled ring (201) is rotatably connected to the inside of the positioning frame (2). A spiral groove is provided at the top of the beveled ring (201). Three sliding grooves are provided at the top of the positioning frame (2). A mating block (204) is slidably connected in each of the three sliding grooves of the positioning frame (2). The three mating blocks (204) are arranged in a ring. A delivery frame (205) is fixedly installed at the top of each mating block (204). A slide (207) is slidably connected at the top of the delivery frame (205). A semi-circular rotating block (208) is rotatably provided on the inner side of each slide (207). A threaded hole is provided on the outer side of the slide (207).

2. The precision grinding and polishing equipment for the surface of a watch movement as described in claim 1, characterized in that: The positioning frame (2) has a motor B (202) fixedly installed at the middle position of its front end. The shaft of the motor B (202) is fixedly connected to a bevel gear (203). The bevel gear (203) meshes with a bevel ring (201). The top of the bevel ring (201) is provided with a spiral pattern, and the bottom of the mating block (204) is provided with an arc pattern. The spiral pattern on the top of the bevel ring (201) meshes with the arc pattern on the bottom of the mating block (204) for transmission.

3. The precision grinding and polishing equipment for the surface of a watch movement as described in claim 1, characterized in that: A lifting frame (101) is fixedly connected to the middle position of the top rear end of the equipment frame (1). The front end of the lifting frame (101) is slidably connected to the rear end of the lifting platform (102). A threaded hole is opened in the middle rear of the lifting platform (102).

4. The precision grinding and polishing equipment for the surface of a watch movement as described in claim 1, characterized in that: The top rear position of the equipment frame (1) is fixedly connected to the bottom position of the motor A (105). The shaft of the motor A (105) is threaded, and the shaft of the motor A (105) is located in the threaded hole of the lifting platform (102).

5. The precision grinding and polishing equipment for the surface of a watch movement as described in claim 4, characterized in that: The front end of the lifting platform (102) is fixedly connected to the middle of the rear end of the grinding and polishing machine (103). The grinding and polishing machine (103) is located directly above the positioning frame (2). The rotating shaft of the grinding and polishing machine (103) is equipped with a grinding and polishing disc (104).

6. The precision grinding and polishing equipment for the surface of a watch movement as described in claim 1, characterized in that: A screw (206) is rotatably connected to the middle position of the outer side of the delivery frame (205), and the screw (206) is located in the threaded hole on the outer side of the slide (207).