Mechanical hairspring mounting jig

Abstract

The utility model relates to the related technical field of hairspring installation, in particular to a mechanical hairspring installation jig which comprises a base plate and a hairspring body, a circular groove is formed in the upper surface of the base plate, a threaded groove is formed in the inner bottom wall of the circular groove, and an installation assembly is in lap joint with the position, corresponding to the threaded groove, of the inner bottom wall of the circular groove. The surface of the mounting assembly is fixedly connected with four limiting assemblies, the surface of the chassis is in threaded connection with four auxiliary locking assemblies, the mounting assembly comprises a rectangular block, and the hairspring body is fixedly connected with the surface of the rectangular block. According to the mechanical hairspring installation jig, through the arrangement of the installation assembly and the limiting assembly, when the mechanical hairspring installation jig is used, the positions of a sleeve, a circular barrel and a rectangular block can be locked through locking bolts, and the maximum movement range of a hairspring body can be limited through the limiting assembly; it is ensured that the hairspring body does not deform after being used for a long time, so that time inaccuracy is avoided, and the protection effect on the hairspring body is good.

Description

Technical Field

[0001] This utility model relates to the technical field of hairspring installation, and in particular to a mechanical hairspring installation fixture. Background Technology

[0002] The hairspring is an elastic element in a watch, used to control the balance wheel's isochronous reciprocating motion. It is usually made of steel and coiled around the balance wheel. The variation in the effective length of the hairspring determines the balance wheel's torque and amplitude period. It is the soul of a mechanical watch, and the hairspring is generally connected to the watch's base through a mounting fixture.

[0003] Existing hairspring mounting fixtures only fix the hairspring to the chassis with bolts during installation. However, such fixtures can only lock the hairspring but cannot limit its maximum range of motion. This leads to the hairspring's maximum range of motion increasing as the steel wire ages after prolonged use, which can easily cause the watch to keep inaccurate time and provides poor protection for the hairspring, indicating room for improvement. Utility Model Content

[0004] The purpose of this utility model is to provide a mechanical hairspring mounting fixture to solve the problem mentioned in the background art that the existing hairspring mounting fixtures only fix the hairspring with bolts and cannot provide a restrictive and protective function for the hairspring.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mechanical hairspring mounting fixture, comprising a chassis and a hairspring body, wherein a circular groove is formed on the upper surface of the chassis, a threaded groove is formed on the inner bottom wall of the circular groove, and a mounting component is attached to the inner bottom wall of the circular groove at a position corresponding to the threaded groove, four limiting components are fixedly connected to the surface of the mounting component, and four auxiliary locking components are threadedly connected to the surface of the chassis.

[0006] The mounting component is used to fix the hairspring body, the limiting component is used to prevent the hairspring body from deforming, and the auxiliary locking component is used to strengthen the connection between the mounting component and the chassis.

[0007] Preferably, the mounting assembly includes a rectangular block, the hairspring body is fixedly connected to the surface of the rectangular block, a through hole is opened on the upper surface of the rectangular block, a cylindrical cylinder is fixedly connected to the inner wall of the through hole, a sleeve is inserted into the top of the cylindrical cylinder, both the sleeve and the cylindrical cylinder are open at the top and bottom, and a locking bolt is inserted into the inner wall of the sleeve.

[0008] Preferably, the inner diameter of the sleeve and the cylindrical tube is larger than the diameter of the locking bolt, and the locking bolt is adapted to the threaded groove.

[0009] Preferably, the limiting component includes four strip plates, all of which are fixedly connected to the surface of the sleeve. An adjusting screw is rotatably connected to the side of the strip plate away from the sleeve. A groove is formed on the lower surface of the strip plate. The end of the adjusting screw near the sleeve extends into the groove and is rotatably connected to the inner wall of the groove. A slider is slidably connected to the inner wall of the groove, and the slider is threadedly connected to the adjusting screw.

[0010] Preferably, two blocking blocks are fixedly connected to the inner wall of the slide groove near the sleeve, a limiting baffle is fixedly connected to the lower surface of the slider, and the limiting baffle extends into the interior of the circular groove, and a limiting screw hole is opened on the upper surface of the slider.

[0011] Preferably, a threaded through hole is provided on the upper surface of the strip plate at a position corresponding to the slide groove. The inner wall of the threaded through hole is threaded with a positioning bolt. The positioning bolt is adapted to the limiting screw hole. When the slider contacts the blocking block, the position of the positioning bolt corresponds to the position of the limiting screw hole.

[0012] Preferably, the auxiliary locking assembly includes an auxiliary bolt, a slot is provided on the upper surface of the chassis, an auxiliary locking plate is inserted into the inner wall of the slot, and the upper surface of the auxiliary locking plate is fixedly connected to the lower surface of the strip plate. An auxiliary screw hole is provided on the side of the auxiliary locking plate, and the auxiliary bolt is adapted to the auxiliary screw hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This mechanical hairspring mounting fixture, through the setting of mounting components and limiting components, can lock the positions of the sleeve, cylindrical cylinder and rectangular block with locking bolts during use, and the limiting components can limit the maximum range of motion of the hairspring body, ensuring that the hairspring body will not deform after long-term use, thus preventing inaccurate timekeeping. It provides better protection for the hairspring body. Through the setting of auxiliary locking components, the connection strength between the mounting components and limiting components and the chassis can be increased by auxiliary bolts and auxiliary locking plates, resulting in higher stability. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional disassembled structural diagram of the installation components of this utility model;

[0016] Figure 3 This is a partial cross-sectional view of the present invention.

[0017] Figure 4 This is a three-dimensional structural diagram of the limiting component of this utility model.

[0018] In the diagram: 1. Chassis; 2. Hairspring body; 3. Mounting assembly; 4. Limiting assembly; 5. Auxiliary locking assembly; 301. Rectangular block; 302. Circular cylinder; 303. Sleeve; 304. Locking bolt; 401. Strip plate; 402. Adjusting screw; 403. Slider; 404. Blocking block; 405. Limiting baffle; 406. Positioning bolt; 501. Auxiliary bolt; 502. Auxiliary locking plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a mechanical hairspring mounting fixture, including a chassis 1 and a hairspring body 2. A circular groove is formed on the upper surface of the chassis 1, and a threaded groove is formed on the inner bottom wall of the circular groove. An mounting component 3 is attached to the inner bottom wall of the circular groove at a position corresponding to the threaded groove. Four limiting components 4 are fixedly connected to the surface of the mounting component 3, and four auxiliary locking components 5 are threadedly connected to the surface of the chassis 1.

[0021] Mounting component 3 is used to fix the hairspring body 2, limiting component 4 is used to prevent the hairspring body 2 from deforming, and auxiliary locking component 5 is used to strengthen the connection between mounting component 3 and chassis 1.

[0022] Furthermore, the mounting assembly 1 includes a rectangular block 301, and the hairspring body 2 is fixedly connected to the surface of the rectangular block 301. A through hole is provided on the upper surface of the rectangular block 301, and a circular cylinder 302 is fixedly connected to the inner wall of the through hole. A sleeve 303 is inserted into the top of the circular cylinder 302. Both the sleeve 303 and the circular cylinder 302 are open at the top and bottom. A locking bolt 304 is inserted into the inner wall of the sleeve 303. The inner diameter of the sleeve 303 and the circular cylinder 302 is larger than the diameter of the locking bolt 304, and the locking bolt 304 is adapted to the threaded groove. The locking bolt 304 can be used to lock the position of the sleeve 303, the circular cylinder 302 and the rectangular block 301, increasing the stability of the hairspring body 2 in the circular groove and making disassembly faster.

[0023] Furthermore, the limiting component 4 includes four strip plates 401, all of which are fixedly connected to the surface of the sleeve 303. An adjusting screw 402 is rotatably connected to the side of each strip plate 401 away from the sleeve 303. A groove is formed on the lower surface of each strip plate 401. The end of the adjusting screw 402 near the sleeve 303 extends into the groove and is rotatably connected to the inner wall of the groove. A slider 403 is slidably connected to the inner wall of the groove. The slider 403 is threadedly connected to the adjusting screw 402. Two blocking blocks 404 are fixedly connected to the inner wall of the groove near the sleeve 303. The lower surface of the slider 401... A limiting baffle 405 is fixedly connected to the surface and extends into the interior of the circular groove. A limiting screw hole is opened on the upper surface of the slider 403. After the rectangular block 301 is locked, the positions of the four strip plates 401 are fixed. At the same time, the four adjusting screws 402 are rotated, so that the adjusting screws 402 drive the slider 403 to move in the groove until the slider 403 contacts the blocking block 404. At this time, the limiting baffle 405 can lock the maximum range of motion of the hairspring body 2, ensuring that the hairspring body 2 will not deform after long-term use, and the protection effect of the hairspring body 2 is good.

[0024] Furthermore, a threaded through hole is provided on the upper surface of the strip plate 401 at a position corresponding to the slide groove. The inner wall of the threaded through hole is threaded with a positioning bolt 406. The positioning bolt 406 is adapted to the limiting screw hole. When the slider 403 contacts the blocking block 404, the position of the positioning bolt 406 corresponds to the position of the limiting screw hole. After the slider 403 is restricted by the blocking block 404, the positioning bolt 406 is used to lock the slider 403, which can ensure that the slider 403 will not be displaced due to vibration after long-term use, and has a good protection effect on the hairspring body 2.

[0025] Furthermore, the auxiliary locking assembly 5 includes auxiliary bolts 501. A slot is provided on the upper surface of the chassis 1, and an auxiliary locking plate 502 is inserted into the inner wall of the slot. The upper surface of the auxiliary locking plate 502 is fixedly connected to the lower surface of the strip plate 401. An auxiliary screw hole is provided on the side of the auxiliary locking plate 502. The auxiliary bolts 501 and 501 are adapted to the auxiliary screw holes. The four strip plates 401 can drive the auxiliary locking plates 502 to be inserted into the slot. At this time, the four auxiliary bolts 501 are used to position the four auxiliary locking plates 502, which can increase the connection strength between the mounting assembly 3 and the limiting assembly 4 and the chassis 1, and improve stability.

[0026] Working principle: First, place the hairspring body 2 into the circular groove, align the rectangular block 301 with the threaded groove, and then insert the sleeve 303 into the top of the circular cylinder 302. At this point, use the locking bolt 304 to pass through the sleeve 303 and the circular cylinder 302 and tighten it with the threaded groove. The locking bolt 304 locks the sleeve 303, the circular cylinder 302, and the rectangular block 301, fixing the rectangular block 301 in the circular groove. The hairspring body 2 is now in the correct position. After locking, rotate the four adjusting screws 402, causing the adjusting screws 402 to move the slider 403 towards the rectangular block 301 until the slider 403 contacts the blocking block 404. At this point, the slider 403 cannot move further, and the four limiting screws... The position baffle 405 is positioned precisely within the maximum range of motion of the hairspring body 2, thereby restricting the hairspring body 2 and ensuring that it will not deform after prolonged use. Furthermore, the positioning bolts 406 lock the position of the slider 403, ensuring that the slider 403 will not shift due to vibration after prolonged use, resulting in higher stability and better protection for the hairspring body 2. After the four strip plates 401 are locked, the auxiliary locking plate 502 can be inserted into the four slots above the chassis 1 and locked with the auxiliary bolts 501, which increases the connection strength between the mounting assembly 3 and the limiting assembly 4 and the chassis 1, resulting in higher stability.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanical hairspring mounting fixture, comprising a chassis (1) and a hairspring body (2), characterized in that: The upper surface of the chassis (1) is provided with a circular groove, the inner bottom wall of the circular groove is provided with a threaded groove, the inner bottom wall of the circular groove and the corresponding position of the threaded groove are connected to the mounting component (3), the surface of the mounting component (3) is fixedly connected with four limiting components (4), and the surface of the chassis (1) is threadedly connected with four auxiliary locking components (5). The mounting component (3) is used to fix the hairspring body (2), the limiting component (4) is used to prevent the hairspring body (2) from deforming, and the auxiliary locking component (5) is used to strengthen the connection between the mounting component (3) and the chassis (1).

2. The mechanical hairspring mounting fixture according to claim 1, characterized in that: The mounting assembly (3) includes a rectangular block (301), the hairspring body (2) is fixedly connected to the surface of the rectangular block (301), the upper surface of the rectangular block (301) is provided with a through hole, the inner wall of the through hole is fixedly connected with a cylindrical cylinder (302), the top end of the cylindrical cylinder (302) is inserted with a sleeve (303), both the sleeve (303) and the cylindrical cylinder (302) are open at the top and bottom, and the inner wall of the sleeve (303) is inserted with a locking bolt (304).

3. The mechanical hairspring mounting fixture according to claim 2, characterized in that: The inner diameter of the sleeve (303) and the cylindrical tube (302) is larger than the diameter of the locking bolt (304), and the locking bolt (304) is adapted to the threaded groove.

4. The mechanical hairspring mounting fixture according to claim 1, characterized in that: The limiting component (4) includes a strip plate (401), and four strip plates (401) are fixedly connected to the surface of the sleeve (303). An adjusting screw (402) is rotatably connected to the side of the strip plate (401) away from the sleeve (303). A sliding groove is provided on the lower surface of the strip plate (401). The end of the adjusting screw (402) near the sleeve (303) extends into the interior of the sliding groove and is rotatably connected to the inner wall of the sliding groove. A slider (403) is slidably connected to the inner wall of the sliding groove. The slider (403) is threadedly connected to the adjusting screw (402).

5. A mechanical hairspring mounting fixture according to claim 4, characterized in that: Two blocking blocks (404) are fixedly connected to the inner wall of the slide groove near the sleeve (303). A limiting baffle (405) is fixedly connected to the lower surface of the slider (403), and the limiting baffle (405) extends into the interior of the circular groove. A limiting screw hole is opened on the upper surface of the slider (403).

6. A mechanical hairspring mounting fixture according to claim 4, characterized in that: The upper surface of the strip plate (401) is provided with a threaded through hole at the position corresponding to the slide groove. The inner wall of the threaded through hole is threaded with a positioning bolt (406). The positioning bolt (406) is adapted to the limiting screw hole. When the slider (403) contacts the blocking block (404), the position of the positioning bolt (406) corresponds to the position of the limiting screw hole.

7. A mechanical hairspring mounting fixture according to claim 1, characterized in that: The auxiliary locking assembly (5) includes an auxiliary bolt (501), a slot is provided on the upper surface of the chassis (1), an auxiliary locking plate (502) is inserted into the inner wall of the slot, and the upper surface of the auxiliary locking plate (502) is fixedly connected to the lower surface of the strip plate (401). An auxiliary screw hole is provided on the side of the auxiliary locking plate (502), and the auxiliary bolt (501) is adapted to the auxiliary screw hole.

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