Positioning device for middle frame of watch

Abstract

The utility model relates to the technical field of watch assembly, in particular to a positioning device of a watch middle frame, which comprises a guide seat and a watch middle frame, the upper end of the guide seat is provided with a positioning device, and the positioning device is arranged on two sides of the watch middle frame; the positioning device comprises positioning blocks and lead screws, the guide seat is provided with at least two positioning blocks, the positioning blocks are slidably mounted on the upper end face of the guide seat respectively, threaded holes are formed in the side faces, close to the end of the guide seat, of the positioning blocks, and the lead screws are rotatably mounted at the two ends of the guide seat respectively and used for being in threaded connection with the positioning blocks. A positioning groove used for positioning the watch middle frame is formed in the side face, far away from the end of the guide base, of the positioning block, and by arranging the positioning device, the screw rod can be rotated to drive the positioning block to slide on the guide base. And the distance between the two groups of positioning blocks can be adjusted to adapt to watch middle frames with different specifications and sizes so as to meet the positioning requirements for watches with different specifications in daily production, positioning parts do not need to be replaced frequently, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to watch assembling technical field especially is involved in a kind of positioning device of watch middle frame. BACKGROUND

[0002] In watch manufacturing process, the positioning of watch middle frame is the key link to ensure watch assembling precision and quality. The traditional middle frame positioning device usually adopts fixed size clamp or mould, which is difficult to adapt to different specifications and batches of watch middle frame. With the increasing diversification of watch style and size, such fixed positioning device cannot meet the flexibility requirements of modern watch production. Especially in mass customization production, frequent replacement of positioning device not only reduces production efficiency, but also increases production cost. Therefore, developing a positioning device capable of automatically adjusting size according to different specifications of watch middle frame has important significance for improving production efficiency, reducing cost and improving product quality. SUMMARY

[0003] The utility model discloses to overcome above-mentioned situation shortage, aims at providing a kind of positioning device of watch middle frame can solve above-mentioned problem technical scheme.

[0004] A kind of positioning device of watch middle frame, the positioning device includes guide seat and watch middle frame, the upper end of the guide seat is equipped with positioning device, the positioning device is arranged in the both sides of the watch middle frame;

[0005] The positioning device includes positioning block and screw rod, the guide seat is equipped with at least two positioning blocks, the positioning block is slidably installed on the upper end surface of the guide seat, the side surface close to the end of the guide seat is provided with threaded hole, the screw rod is rotatably installed at the both ends of the guide seat for screwing the positioning block, the side surface away from the end of the guide seat is provided with positioning groove for positioning the watch middle frame.

[0006] As a further scheme of the utility model: the guide seat includes bottom plate, baffle and bearing, the baffle is installed on the left and right sides of the bottom plate respectively, the baffle is provided with mounting hole, the bearing is installed in the mounting hole, the screw rod passes through the bearing for screwing the threaded hole.

[0007] As a further scheme of the utility model: the upper end surface of the guide seat is provided with first guide slot, the lower end surface of the positioning block is provided with first guide rail, and the positioning block is slidably installed in the first guide slot.

[0008] As a further scheme of the utility model: the screw rod is provided with distance adjusting knob, and the distance adjusting knob is installed at the end of the screw rod away from the positioning block.

[0009] As a further scheme of the utility model: the lower end of the positioning block is provided with an abutting clamping device, the abutting clamping device includes a clamping block and a spring, the upper end face of the bottom plate is provided with at least two groups of second guide rails, the lower end face of the clamping block is provided with a second guide groove, the clamping block is slidably installed on the second guide rail, one end of the spring is installed on the end face of the baffle, the other end of the spring abuts against the positioning block, the side of the positioning block away from the baffle is provided with a clamping groove for clamping the watch middle frame, and the upper edge of the clamping groove is rounded.

[0010] As a further scheme of the utility model: the side of the clamping block close to the baffle is provided with at least one guide hole, the clamping block is provided with a guide column, the spring is sleeved on the guide column, one end of the guide column is inserted into the guide hole, and the other end of the guide column is connected with the baffle.

[0011] As a further scheme of the utility model: the side of the clamping block close to the baffle is provided with two guide holes, the guide holes are symmetrically arranged on the side of the baffle, and the guide columns are respectively installed between the clamping block and the baffle.

[0012] As a further scheme of the utility model: the upper end of the clamping block is provided with a third guide groove, the positioning block is slidably connected with the third guide groove, and the first guide rail is installed on the third guide groove.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. By setting a positioning device, the rotation of the lead screw can drive the sliding of the positioning block on the guide seat, the interval between the two positioning blocks can be adjusted to adapt to watch middle frames of different specifications to meet the positioning needs of different specifications of watches in daily production, the positioning components need not be frequently replaced, and the production cost is reduced.

[0015] 2. By setting the abutting clamping device at the lower end of the positioning block, the accurate positioning and stable clamping of the watch middle frame are realized.

[0016] Additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0018] Figure 1 is a structural schematic diagram of the positioning device of the present application.

[0019] Figure 2 is an exploded schematic diagram of the positioning device of the present application.

[0020] Figure 3 is a structural schematic diagram of the clamping block of the present application.

[0021] Figure 4 is an exploded schematic diagram of Figure 3 .

[0022] Figure 5 is a structural schematic diagram of the clamping device (hidden watch middle frame) of the present application.

[0023] Figure 6 is a structural schematic diagram of the baffle (hidden watch middle frame) of the present application.

[0024] Figure 7 is a structural schematic diagram of the third guide groove (hidden watch middle frame) of the present application.

[0025] Figure 8 is a sectional view of A-A in Figure 7 .

[0026] In the figure: 1 - guide seat, 2 - watch middle frame, 3 - positioning device, 31 - positioning block, 32 - screw rod, 311 - threaded hole, 312 - positioning groove, 11 - bottom plate, 12 - baffle, 13 - bearing, 14 - mounting hole, 15 - first guide groove, 313 - first guide rail, 321 - distance adjusting knob, 41 - clamping block, 42 - spring, 111 - second guide rail, 411 - second guide groove, 412 - clamping groove, 413 - guide hole, 414 - guide column, 415 - third guide groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] Referring to Figures 1-8 , the utility model discloses a positioning device 3 of a watch middle frame 2, positioning device 3 includes guide seat 1 and watch middle frame 2, and the upper end of guide seat 1 is equipped with positioning device 3, and positioning device 3 is arranged at both sides of watch middle frame 2;

[0029] Positioning device 3 includes locating block 31 and screw rod 32, and guide seat 1 is equipped with at least two locating blocks 31, and locating block 31 is slidably installed on the upper end face of guide seat 1, and the side surface of locating block 31 close to the end of guide seat 1 is provided with threaded hole 311, and screw rod 32 is rotatably installed at both ends of guide seat 1 for screwing locating block 31, and the side surface of locating block 31 away from the end of guide seat 1 is provided with positioning groove 312 for positioning watch middle frame 2.Specifically, locating block 31 is correspondingly arranged with a certain interval on the left and right sides, and the interval between the two locating blocks 31 is used as the positioning area for positioning watch middle frame 2.

[0030] The utility model discloses a positioning device 3, and rotating screw rod 32 can drive the sliding of locating block 31, and the interval between the two groups of locating blocks 31 can be adjusted to adapt to watch middle frame 2 of different specifications and sizes to meet the positioning needs of different size watches in daily production, so that the production cost is reduced without frequently replacing the positioning parts.

[0031] Further as Figures 1-5 Indicated in the utility model embodiment, guide seat 1 includes bottom plate 11, baffle 12 and bearing 13, baffle 12 is installed on the left and right sides of bottom plate 11 respectively, baffle 12 is provided with mounting hole 14, bearing 13 is installed in mounting hole 14, and screw rod 32 passes through bearing 13 and is used for screwing threaded hole 311.Specifically, the connecting mode between bottom plate 11 and baffle 12 can be integrally formed, detachable connection or fixed connection.Bearing 13 and mounting hole 14 can adopt interference fit.Screw rod passes through bearing 13 and is screw-connected with threaded hole 311 of locating block 31, and the operator can drive locating block 31 to slide in the direction of screw rod by rotating screw rod.

[0032] Further as Figures 1-2 Indicated in another embodiment of the utility model, the upper end face of guide seat 1 is provided with first guide groove 15, and the lower end face of locating block 31 is provided with first guide rail 313, and locating block 31 is slidably installed first guide groove 15.First guide rail 313 of locating block 31 is installed in first guide groove 15 and slides, and the cooperation of first guide rail 313 and first guide groove 15 can provide guiding effect for locating block 31, so that locating block 31 can be more stable in the sliding process.

[0033] Further as Figures 1-6As shown, in the utility model embodiment, the screw rod 32 is provided with a pitch adjusting knob 321, and the pitch adjusting knob 321 is installed at one end of the screw rod 32 away from the positioning block 31. Specifically, anti-skid lines are arranged on the surface of the pitch adjusting knob 321, so that the friction force can be increased, and the knob can be conveniently gripped and rotated by an operator.

[0034] Further as Figures 3-8 As shown, in the utility model embodiment, the lower end of the positioning block 31 is provided with an abutting clamping device, the abutting clamping device comprises a clamping block 41 and a spring 42, the upper end face of the bottom plate 11 is provided with at least two groups of second guide rails 111, the lower end face of the clamping block 41 is provided with a second guide groove 411, the clamping block 41 is slidingly installed on the second guide rail 111, one end of the spring 42 is installed on one end face of the baffle 12, the other end of the spring 42 abuts against the positioning block 31, and the side of the positioning block 31 away from the baffle 12 is provided with a clamping groove 412 for clamping the middle frame 2 of the watch, and the upper edge of the clamping groove 412 is rounded. Specifically, the shape of the clamping groove 412 corresponds to the side face of the middle frame 2 of the watch, so that the clamping groove 412 can be more closely fitted when clamping the middle frame 2 of the watch.

[0035] The working principle of the embodiment is as follows: by arranging the abutting clamping device at the lower end of the positioning block 31, the accurate positioning and stable clamping of the middle frame 2 of the watch are realized. When the middle frame 2 of the watch is positioned and pressed downward, the clamping block 41 moves to the two sides of the bottom plate 11 under the action of pressure and overcomes the elastic force of the spring 42. When the middle frame 2 of the watch abuts against the groove face of the clamping groove 412, the clamping block 41 rapidly rebounds under the pushing of the elastic force of the spring 42 and tightly abuts against the two sides of the middle frame 2 of the watch. This process is not only simple in operation, but also remarkable in clamping effect, and the middle frame 2 of the watch can be ensured to be stable during machining or assembly.

[0036] In another embodiment of the utility model, the upper edge of the clamping groove 412 is rounded, so that the middle frame 2 of the watch can be pressed more smoothly. When the middle frame 2 of the watch is located between the two positioning blocks 31, the two clamping blocks 41 slide relative to each other under the action of the elastic force of the spring 42, so that the distance between the two clamping blocks 41 is smaller than the distance between the two positioning blocks 31 (that is, the positioning area). When the operator clamps the middle frame 2 of the watch in the positioning area, the lower end face of the middle frame 2 of the watch is placed on the upper end face of the clamping block 41, and the lower end face of the middle frame 2 of the watch is in contact with the upper edge of the clamping groove 412. At this time, the upper edge of the clamping groove 412 can abut against the lower end face of the middle frame 2 of the watch and also plays a supporting role.

[0037] Further as Figures 3-8As shown in the utility model embodiment, the side surface of the clamping block 41 close to the baffle 12 is provided with at least one guide hole 413, the clamping block 41 is provided with a guide column 414, the spring 42 is sleeved on the guide column 414, one end of the guide column 414 is inserted into the guide hole 413, and the other end of the guide column 414 is connected to the baffle 12.The guide column 414 can provide a guiding effect for the clamping block 41 when sliding, guarantee the stability of the clamping block 41 when sliding, and the sleeved spring 42 can limit the spring 42 to avoid loosening caused by deviation of the spring 42 when being extruded.

[0038] Further as Figures 3-8 As shown in the utility model embodiment, the side surface of the clamping block 41 close to the baffle 12 is provided with two guide holes 413, the guide holes 413 are symmetrically arranged on the side surface of the baffle 12, and the guide columns 414 are respectively installed between the clamping block 41 and the baffle 12.The guide holes 413 symmetrically arranged on the side surface of the clamping block 41 can further improve the stability degree of the clamping block 41 when sliding.

[0039] Further as Figures 3-8 As shown in the utility model embodiment, the upper end of the clamping block 41 is provided with a third guide groove 415, the positioning block 31 is slidably connected with the third guide groove 415, and the first guide rail 313 is installed on the third guide groove 415.In another embodiment of the utility model, the first guide rail 313 and the third guide groove 415 can guarantee the stability of the positioning block 31 when sliding.The upper end of each clamping block 41 can be provided with at least two third guide grooves 415, and the first guide rail 313 can be correspondingly installed at the lower end of the positioning block 31, so that the stability of the positioning block 31 can be improved.

[0040] It is apparent for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other concrete forms without departing from the spirit or essential characteristics of the utility model. Therefore, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.

Claims

1. A positioning device for a middle case of a wristwatch, characterized in that, The positioning device (3) comprises a guide seat (1) and a watch middle frame (2), the upper end of the guide seat (1) is provided with a positioning device (3), and the positioning device (3) is arranged on the two sides of the watch middle frame (2); The positioning device (3) comprises a positioning block (31) and a lead screw (32), the guide seat (1) is provided with at least two positioning blocks (31), the positioning blocks (31) are respectively slidably installed on the upper end face of the guide seat (1), a threaded hole (311) is formed in the side face of the positioning block (31) close to the end of the guide seat (1), the lead screw (32) is rotatably installed at the two ends of the guide seat (1) and is used for threadedly connecting the positioning block (31), and the side face of the positioning block (31) away from the end of the guide seat (1) is provided with a positioning groove (312) used for positioning the watch middle frame (2).

2. The positioning device of claim 1, wherein, The guide seat (1) comprises a bottom plate (11), a baffle (12) and a bearing (13), the baffles (12) are respectively installed on the left and right sides of the bottom plate (11), the baffle (12) is provided with a mounting hole (14), the bearing (13) is installed in the mounting hole (14), and the lead screw (32) penetrates through the bearing (13) and is used for threadedly connecting the threaded hole (311).

3. The positioning device of claim 2, wherein, The upper end face of the guide seat (1) is provided with a first guide groove (15), the lower end face of the positioning block (31) is provided with a first guide rail (313), and the positioning block (31) is slidably installed in the first guide groove (15).

4. The positioning device of claim 2, wherein, The lead screw (32) is provided with a distance adjusting knob (321), and the distance adjusting knob (321) is installed at one end of the lead screw (32) away from the positioning block (31).

5. The positioning device of claim 3, wherein, The lower end of the positioning block (31) is provided with an abutting clamping device, the abutting clamping device comprises a clamping block (41) and a spring (42), the upper end face of the bottom plate (11) is provided with at least two groups of second guide rails (111), the lower end face of the clamping block (41) is provided with a second guide groove (411), the clamping block (41) is slidably installed on the second guide rail (111), one end of the spring (42) is installed on one end face of the baffle (12), the other end of the spring (42) abuts against the positioning block (31), one side of the positioning block (31) away from the baffle (12) is provided with a clamping groove (412) used for clamping the watch middle frame (2), and the upper edge of the clamping groove (412) is rounded.

6. The positioning device of claim 5, wherein, The side face of the clamping block (41) close to the baffle (12) is provided with at least one guide hole (413), the clamping block (41) is provided with a guide column (414), the spring (42) is sleeved on the guide column (414), one end of the guide column (414) is inserted into the guide hole (413), and the other end of the guide column (414) is connected with the baffle (12).

7. The positioning device of claim 6, wherein, The clamping block (41) is provided with two guide holes (413) on one side of the baffle (12), the guide holes (413) are symmetrically arranged on the side of the baffle (12), and the guide columns (414) are respectively installed between the clamping block (41) and the baffle (12).

8. The positioning device of claim 7, wherein, The upper end of the clamping block (41) is provided with a third guide groove (415), the positioning block (31) is slidably connected with the third guide groove (415), and the first guide rail (313) is installed on the third guide groove (415).

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