Connecting device of clock movement stator sheet

Abstract

The utility model discloses a connecting device of a clock movement stator sheet, which comprises a movement framework, the movement framework comprises a front clamping plate, a buckling device and a rear clamping plate, the buckling device is arranged on the front clamping plate, and the front clamping plate is also provided with the stator sheet; two positioning columns are arranged on the front clamping plate, two position guiding sheets are arranged at one end of the stator sheet, each position guiding sheet is provided with a positioning groove, and the distance between the two positioning grooves is equal to the distance between the two positioning columns on the front clamping plate; a scrap collecting groove is formed in the periphery of the bottom of the positioning column. According to the utility model, the adverse effect of chippings on the travel time accuracy of the movement can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of clock movement, in particular to a connecting device for stator sheets of a clock movement. Background Art

[0002] The accuracy of the movement of a watch is related to the accuracy and positioning of the electronic components. The motor components mainly include the rotor, positive and negative poles, and the stator plate with coils and circuit boards; the main structure of the movement includes: front plate, middle plate and rear plate. The stator plate is set on the middle plate of the movement, and the positive and negative poles are fixed on the rear plate. One end is tilted to support the contact point of the circuit board on the stator plate, and then the front plate presses the middle plate, so that the contact point of the circuit board is in close contact with the positive and negative poles. Before assembling the front plate, the middle plate will be lifted up because of the upturned end of the positive and negative poles. The transmission gears set on the middle plate or positioned by the middle plate are easily misplaced. In addition, after the front plate is installed, it is easy for the upturned ends of the positive and negative poles to leave the circuit board or be misplaced. Therefore, this kind of movement has a high defective rate and is difficult to use automated processing. It is also easy to have errors when the movement is running.

[0003] The applicant disclosed in CN205485327U a connecting device for a stator plate of a watch movement, comprising a movement structure, the movement structure comprising a front plate and a rear plate, the buckling device being arranged on the front plate, and the stator plate being also arranged on the front plate; two positioning posts are arranged on the front plate, and a buckling device is arranged on the front plate between the two positioning posts; the connecting device, through the arrangement of the buckling device, when installing the stator plate, only needs to insert the positioning grooves at both ends of the stator plate into the two positioning posts of the front plate to achieve positioning, and then press the stator plate to insert the two guide plates of the stator plate into the buckling device, so that the stator plate can be fixed, thereby realizing simple installation of the stator plate, and since the stator plate can be installed from top to bottom, a robot can be directly used to install it during production, thereby realizing fully automatic assembly.

[0004] However, the inventor found that the positioning can be achieved by inserting the positioning grooves at both ends of the stator sheet into the two positioning posts of the front splint, and then pressing the stator sheet to insert the two guide plates of the stator sheet into the buckle device. During the repeated operation of the clock movement, the positioning posts and the stator sheet will produce friction. Since the positioning posts and the stator sheet are metal parts, debris caused by friction will appear under the positioning posts. If these debris are not handled in time, the debris will enter the various gears of the movement, thereby affecting the accuracy of the movement. Therefore, it is necessary to design a solution to this technical problem, and thus the utility model is provided.

[0005] It should be noted that the information discovered by the inventor disclosed in the background technology is only intended to increase the understanding of the overall background of the utility model and to understand the background of the inventor's inventive conception, and should not be regarded as acknowledging or suggesting in any form that the information discovered by the inventor constitutes prior art already known to those skilled in the art or has been known by technical inspiration. Utility Model Content

[0006] In view of this, in order to solve the above technical problems, the purpose of the utility model is to provide a connection device for the stator plates of a watch movement, which can reduce the adverse effects of debris on the accuracy of the movement.

[0007] The technical solutions adopted are:

[0008] A connecting device for a stator plate of a watch movement comprises a movement frame, the movement frame comprises a front plate, a buckling device and a rear plate, the buckling device is arranged on the front plate, and the stator plate is also arranged on the front plate; two positioning posts are arranged on the front plate, two guide plates are arranged on one end of the stator plate, each guide plate is provided with a positioning groove, and the spacing between the two positioning grooves is equal to the spacing between the two positioning posts on the front plate; a debris collection groove is opened around the bottom of the positioning post.

[0009] Furthermore, the debris collection groove is an annular debris collection groove.

[0010] Furthermore, a debris collection groove is provided at an end of the debris collection groove away from the positioning column.

[0011] Furthermore, the bottom wall of the debris collection groove is inclined downward from an end close to the positioning column to an end away from the positioning column.

[0012] Furthermore, the buckling device is arranged on the front splint and between the two positioning posts, and the buckling device includes a fixing post, one end of which is fixed to the front splint and is located between the two positioning posts on the front splint; two limiting parts and a fixing part are arranged at the other end of the fixing post; one end of the fixing part is fixed to the fixing post, and both sides of the end where the fixing part is connected to the fixing post are provided with undercut positions; the two limiting parts are respectively arranged on both sides of the fixing part, and the distance between the inner side wall of each limiting part and the undercut position of the fixing part is smaller than the width of the guide plate, so that when the guide plate of the stator plate is inserted into the buckling device, the distance between the two positioning grooves will be reduced under the action of the undercut position; a restoring position is also arranged below the two undercut positions of the fixing part, and the distance between each restoring position and the inner side wall of the limiting part corresponding to it is larger than the distance between the inner side wall of the limiting part and the undercut position of the fixing part.

[0013] Furthermore, a groove is provided in the middle of the fixing portion.

[0014] Furthermore, the depth of the groove is greater than the sum of the heights of the undercut position and the recovery position.

[0015] Furthermore, bevels are provided on both sides of the upper end of the fixing portion, and two ends with the largest distance between the two bevels are close to the recovery position.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] Since a debris collection groove is provided around the bottom of the positioning column, the debris generated by the friction between the positioning column and the stator sheet will basically fall into the debris collection groove, thereby reducing the movement of the debris in other places and further reducing the adverse effect of the debris on the accuracy of the movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0019] Figure 1 It is a structural schematic diagram of an existing connection device for stator plates of a watch movement;

[0020] Figure 2 , 3 It is a structural schematic diagram of an existing buckling device;

[0021] Figure 4 for Figure 1 A side view structural schematic diagram of;

[0022] Figure 5 , 6 The figure is a schematic diagram of the structure of an existing stator sheet.

[0023] Figure 7 This is a schematic structural diagram of a connecting device for a stator plate of a watch movement according to Example 1 of the utility model, with the stator plate and the movement gear removed.

[0024] Figure 8 This is a schematic structural diagram of the positioning column of Example 1 of the utility model.

[0025] Fig. 9 This is a schematic structural diagram of a positioning column in Example 2 of the utility model. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only partial embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] Since the present application is an improvement on the basis of CN205485327U, the present application may partially quote the contents of CN205485327U so as to more clearly understand the present utility model. Those skilled in the art may also further understand the present utility model based on reading CN205485327U.

[0029] like Figure 1 , 4 The conventional connecting device for the stator plate of a watch movement shown includes a movement structure 1 and a buckling device 2. The movement structure 1 includes a front plate 10 and a rear plate 11. The buckling device 2 is arranged on the front plate 10. The stator plate 12 is also arranged on the front plate 10.

[0030] Specifically, Figure 1 , 5 As shown in Figure 6, two positioning posts 100 are arranged on the front clamp plate 10, and the snap-on device 2 is arranged between the two positioning posts 100; two guide plates 120 are arranged on one end of the stator plate 12, and each guide plate 120 is provided with a positioning groove 121, and the spacing between the two positioning grooves 121 is equal to or slightly larger than the spacing between the two positioning posts 100 on the front clamp plate 10, so that the two positioning posts 100 can be inserted into a positioning groove 121 respectively at the same time.

[0031] More specifically, Figure 2 , 3 As shown, the snap-on device 2 includes a fixing column 20, one end of which is fixed on the front splint 10 and is located between the two positioning columns 100 on the front splint; two limiting portions 21 and a fixing portion 22 are arranged at the other end of the fixing column 20; one end of the fixing portion 22 is fixed on the fixing column 20, and both sides of the end of the fixing portion 22 connected to the fixing column 20 are provided with undercut positions 23; the two limiting portions 21 are respectively arranged on both sides of the fixing portion 22, and the spacing C between the inner side wall of each limiting portion 21 and the fixing portion undercut position 23 is smaller than the width D of the guide plate, so that when the guide plate of the stator plate 12 is inserted into the snap-on device 2, the spacing between the two positioning grooves 121 will be reduced under the action of the undercut position 23.

[0032] A restoring position 24 is further provided below the two undercut positions 23 of the fixing portion 22 , and a distance E between each restoring position 24 and the corresponding inner wall of the limiting portion 21 is greater than a distance C between the inner wall of the limiting portion 21 and the undercut position 23 of the fixing portion.

[0033] A groove 220 is provided in the middle of the fixing portion 22 .

[0034] Preferably, the depth of the groove 220 is greater than the sum of the heights of the inverted position 23 and the recovery position 24; through such a setting, the two guide plates can be more easily inserted into the recovery position, and under the action of the two half fixing parts, they can be fixed more stably and firmly.

[0035] Bevels 221 are provided on both sides of the upper end of the fixing portion 22, and the two ends of the bevels 221 with the largest distance between them are close to the recovery position 24; through such a setting, when the guide piece is inserted into the recovery position, the two bevels of the fixing portion can play a guiding role, making it easier to insert the stator piece.

[0036] Furthermore, at least one guide bar 25 is disposed at the bottom of the fixing column 20 . In the present embodiment, two guide bars 25 are disposed at the bottom of the fixing column 20 , and guide rails corresponding to the number of the guide bars 25 are disposed on the front clamping plate 10 .

[0037] Furthermore, limit strips 250 are provided on both sides of each guide strip 25, and each guide rail is provided with a limit groove that can match the limit strip 250; through such a setting, the buckle device can be detachably fixed to the front clamping plate.

[0038] The following are improvements of the present invention, which are designed to solve the technical problem that if the debris is not processed in time, the debris will enter the various gears of the movement, thereby affecting the accuracy of the movement.

[0039] The following technical means were used:

[0040] See also Figure 7 and Figure 8 As shown, a debris collection groove 101 is provided around the bottom of the positioning column 100. Preferably, the debris collection groove 101 is an annular debris collection groove 101.

[0041] In this way, the debris generated by the friction between the positioning column and the stator plate will basically fall into the debris collection groove, thereby reducing the movement of the debris in other places, and then reducing the adverse effects of the debris on the accuracy of the movement.

[0042] Example 2

[0043] Referring to Example 1, on the basis of Example 1, see Fig. 9As shown, a debris collection groove 102 is provided in the debris collection groove 101 at an end away from the positioning column. Further preferably, the bottom wall 103 of the debris collection groove 101 from the end close to the positioning column to the end away from the positioning column is inclined downward.

[0044] In this way, the debris generated by the friction between the positioning column and the stator plate will basically fall into the debris collection groove and further slide into the debris concentration groove, thereby reducing the movement of debris in other places and then reducing the adverse effects of debris on the accuracy of the movement.

[0045] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the protection scope of the present invention. All equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A connecting device for a stator plate of a watch movement, comprising a movement frame, the movement frame comprising a front plate, a buckling device and a rear plate, the buckling device being arranged on the front plate, and the stator plate being arranged on the front plate; two positioning posts are arranged on the front plate, two guide plates are arranged on one end of the stator plate, each guide plate is provided with a positioning groove, and the spacing between the two positioning grooves is equal to the spacing between the two positioning posts on the front plate; characterized in that A debris collection groove is provided around the bottom of the positioning column.

2. The connecting device for stator plates of a watch movement according to claim 1, characterized in that: The debris collection groove is an annular debris collection groove.

3. The connecting device for stator plates of a watch movement according to claim 1, characterized in that: A debris collection groove is provided at an end of the debris collection groove away from the positioning column.

4. The connecting device for stator plates of a watch movement according to claim 1, characterized in that: The bottom wall of the debris collection groove is inclined downward from one end close to the positioning column to one end away from the positioning column.

5. The connecting device for stator plates of a watch movement according to claim 1, characterized in that: The buckling device is arranged on the front splint and between the two positioning posts, and the buckling device includes a fixing post, one end of which is fixed to the front splint and is located between the two positioning posts on the front splint; two limiting parts and a fixing part are arranged at the other end of the fixing post; one end of the fixing part is fixed to the fixing post, and both sides of the end where the fixing part is connected to the fixing post are provided with undercut positions; the two limiting parts are respectively arranged on both sides of the fixing part, and the distance between the inner side wall of each limiting part and the undercut position of the fixing part is smaller than the width of the guide piece, so that when the guide piece of the stator piece is inserted into the buckling device, the distance between the two positioning grooves will be reduced under the action of the undercut position; a restoring position is also arranged below the two undercut positions of the fixing part, and the distance between each restoring position and the inner side wall of the limiting part corresponding to it is greater than the distance between the inner side wall of the limiting part and the undercut position of the fixing part.

6. The connecting device for stator plates of a watch movement according to claim 5, characterized in that: A groove is arranged in the middle of the fixing portion.

7. The connecting device for stator plates of a watch movement according to claim 6, characterized in that: The depth of the groove is greater than the sum of the heights of the undercut position and the recovery position.

8. The connecting device for stator plates of a watch movement according to claim 5, characterized in that: The upper end of the fixing portion is provided with beveled edges on both sides, and the two ends with the largest distance between the two beveled edges are close to the recovery position.

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