Bottom milling and hiding tool for watchcase with watch lugs

Abstract

The utility model discloses a gong hidden bottom position tool for a watchcase with a watch lug, which relates to the technical field of watchcase preparation and comprises a base, a top cover, a plurality of anti-deflection positioning blocks, a positioning block adjusting component, a processing avoiding hole and a watch lug pressing block, and the watchcase can be pressed downwards in the central area of the base through the top cover so as to limit the watchcase to move up and down; a plurality of anti-deflection positioning blocks which horizontally move corresponding to the center of the central area form a rotating stop for the watch case or the watch lug which horizontally rotates, so that the watch case with the watch lug is not easy to generate rotating deflection, and the gong processing quality can be better ensured; through the arrangement of the positioning block adjusting assembly, the anti-deflection positioning block can move along the center close to the central area or move along the center far away from the central area in the horizontal direction so as to adapt to watchcases or watch lugs of different sizes, that is, the anti-deflection positioning block can always resist the watchcases or the watch lugs on the rotating cut corners; therefore, rotation deviation is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of watch case preparation, in particular to a tool for concealing the bottom of a watch case with lugs. Background Art

[0002] At present, when the watch case is processed by a lathe, it is necessary to configure the case with corresponding positioning tooling to prevent the case from being shifted in position during lapping, thereby affecting the quality of lapping.

[0003] like Figure 1 As shown, some watch cases require a concealed bottom on the back (the side worn on the wrist) to create a larger installation space. During this process, the production line prepares a set of tooling for each case size. This allows for positioning of the case during machining, particularly to prevent deflection. For some manufacturers, this requires replacing the entire tooling and calibrating the position to ensure accurate positioning, which is time-consuming. Furthermore, the cost of preparing multiple sets of tooling is relatively high. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gong-hiding bottom tooling for a watch case with watch lugs, comprising a base, a top cover detachably connected to the base, a workpiece positioning area provided on the top of the base, the workpiece positioning area having a central area for supporting the watch case to be processed; a plurality of anti-deflection positioning blocks are provided on the top of the base, and the plurality of anti-deflection positioning blocks are arranged around the central area in the horizontal direction; a positioning block adjustment assembly corresponding to the anti-deflection positioning blocks is also provided on the base, and the positioning block adjustment assembly is configured to linearly move the anti-deflection positioning block to the center close to the central area / to linearly move the anti-deflection positioning block to the center away from the central area in the horizontal direction; a processing avoidance hole corresponding to the workpiece positioning area is vertically penetrated on the top cover, and the top cover is also connected to a watch lug pressing block, and when the top cover is connected to the base, the watch lug pressing block is configured to press the watch lug of the watch case from top to bottom.

[0006] As a further solution of the present invention: the positioning block adjustment assembly includes a guide slide groove horizontally arranged on the top of the base, the guide length direction of the guide slide groove is horizontally toward the center of the central area, and an adjustment slider is arranged in the guide slide groove; one end of the adjustment slider passes through the guide slide groove along the length direction of the guide slide groove and is connected to the corresponding anti-deflection positioning block, and a pressure spring is arranged between the other end of the adjustment slider and the inner wall of the relative guide slide groove.

[0007] As a further solution of the present invention: a plurality of vertically arranged screw holes and a plurality of vertically arranged positioning columns are provided on the top of the base; fixing holes corresponding one to one with the screw holes are vertically penetrated on the top cover, and the fixing holes are provided with connecting bolts whose screw parts can pass through the fixing holes and be screwed to the screw holes; positioning holes corresponding one to one with the positioning columns are vertically provided on the top cover.

[0008] As a further solution of the present invention: a plurality of fixing holes and a plurality of positioning holes are arranged on a plane together around the machining avoidance hole, and the fixing holes and the positioning holes are arranged in a staggered manner with respect to each other.

[0009] As a further solution of the present invention: a watch case positioning groove is provided on the central area, and the side walls of the watch case positioning groove are gradually inclined inward from top to bottom.

[0010] As a further solution of the present invention: the cross-sectional shape of the positioning groove of the watch case is circular.

[0011] Compared with the prior art, the beneficial effects of the present technical solution are as follows: when positioning a watch case with lugs on the present gong-hiding bottom position tooling, the watch case can be pressed downward against the central area of ​​the base by the top cover to restrict the watch case from moving up and down; a plurality of anti-deflection positioning blocks that move horizontally corresponding to the center of the central area form a rotation barrier for the horizontally rotating watch case or lugs; when the base is fixed on the corresponding gong bed and the watch case is gong-hiding in the bottom position by the gong bed, the watch case with lugs is not prone to rotational deviation, which can better ensure the gong processing quality;

[0012] By setting the positioning block adjustment assembly, the anti-deflection positioning block can move in the horizontal direction along the center close to the center area or along the center away from the center area to adapt to watch cases or lugs of different sizes. That is, when the watch case with lugs is deflected, the anti-deflection positioning block can always resist the watch case or lug at the rotating angle to prevent it from rotating offset.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 It is a schematic structural diagram of a watch case having lugs;

[0016] Figure 2 It is a structural stereogram of the utility model, with a watch case placed therein;

[0017] Figure 3 This is another structural perspective view of the present invention, without the watch case;

[0018] Figure 4 yes Figure 3 A magnified schematic diagram of the local structure at center A;

[0019] Figure 5 This is a schematic diagram of the cooperation between the anti-deflection positioning block and the watch case in the utility model;

[0020] Figure 6 It is a top view of the structure of the base in the utility model.

[0021] The corresponding reference numerals in the accompanying drawings are described as follows:

[0022] Base-1, top cover-2, workpiece positioning area-3, center area-4, anti-deflection positioning block-5, positioning block adjustment assembly-6, machining avoidance hole-7, lug pressing block-8, guide slide-601, adjustment slide-602, screw hole-9, positioning column-10, connecting bolt-11, positioning hole-12, case positioning groove-13,

[0023] The case is 100, the back of the case is 200, the lugs are 300, and the bottom cover is 400. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-6 A tool for machining the bottom of a watch case with lugs comprises a base 1 to which a top cover 2 is detachably connected. A workpiece positioning area 3 is provided on the top of the base 1, and the workpiece positioning area 3 has a central area 4 for supporting a watch case 100 to be processed.

[0026] A plurality of anti-deflection positioning blocks 5 are provided on the top of the base 1. The plurality of anti-deflection positioning blocks 5 are arranged horizontally around the central area 4. The base 1 is also provided with positioning block adjustment assemblies 6 corresponding one to one with the anti-deflection positioning blocks 5. The positioning block adjustment assemblies 6 are configured to linearly move the anti-deflection positioning blocks 5 to the center of the central area 4 or to move the anti-deflection positioning blocks 5 linearly away from the center of the central area 4 in the horizontal direction.

[0027] A machining avoidance hole 7 corresponding to the workpiece positioning area 3 is vertically penetrated on the top cover 2. A lug pressing block 8 is also connected to the top cover 2. When the top cover 2 is connected to the base 1, the lug pressing block 8 presses the lug 300 of the watch case from top to bottom.

[0028] When positioning the watch case 100 with lugs on the present gong-hidden bottom position tooling, the watch case 100 can be pressed downward on the central area 4 of the base through the top cover 2 to limit the up and down movement of the watch case 100; a plurality of anti-deflection positioning blocks 5 that move horizontally at the center of the corresponding central area 4 form a rotation resistance for the horizontally rotating watch case or lugs. When the base 1 is fixed on the corresponding gong bed and the watch case 100 is gong-hidden in the bottom position through the gong bed, the watch case 100 with lugs is not prone to rotational deviation, which can better ensure the gong processing quality.

[0029] By setting the positioning block adjustment assembly 6, the anti-deflection positioning block 5 can move in the horizontal direction along the center close to the center area 4 or along the center away from the center area 4 to adapt to watch cases or lugs of different sizes. That is, when the watch case with lugs is deflected, the anti-deflection positioning block 5 can always resist the watch case or lug at the rotating angle to prevent it from rotational deviation.

[0030] In some embodiments, the positioning block adjustment assembly 6 includes a guide groove 601 horizontally arranged on the top of the base 1, the guide length direction of the guide groove 601 is horizontally toward the center of the central area 4, and an adjustment slider 602 is arranged in the guide groove 601; one end of the adjustment slider 602 passes through the guide groove along the length direction of the guide groove 601 and is connected to the corresponding anti-deflection positioning block 5, and a pressure spring is arranged between the other end of the adjustment slider 602 and the inner wall of the relative guide groove 601.

[0031] like Figure 3 、 4 As shown in , 6 , the guide groove 601 is arranged in an area outside the central area 4 of the workpiece positioning area 3 .

[0032] In some embodiments, the top of the base 1 is provided with a plurality of vertically arranged screw holes 9 and a plurality of vertically arranged positioning posts 10. The top cover 2 is provided with vertically arranged fixing holes corresponding one-to-one to the screw holes 9. The fixing holes are provided with connecting bolts 11, the screw shafts of which can pass through the fixing holes and be screwed into the screw holes 9. The top cover 2 is also provided with vertically arranged positioning holes 12 corresponding one-to-one to the positioning posts 10. Through the screw connection between the screw holes 9 and the connecting bolts 11, the compression height of the top cover 2 can be adjusted up and down to a certain extent within the length of the screw shaft of the connecting bolts 11.

[0033] Preferably, a plurality of fixing holes and a plurality of positioning holes 12 are arranged together around the machining avoidance hole 7 on a plane, and the fixing holes and the positioning holes 12 are staggered with each other, so that the positioning and fastening effects are better.

[0034] In some embodiments, a case positioning groove 13 is provided in the central region 4, and the sidewalls 13a of the case positioning groove 13 are gradually inclined inward from top to bottom. The compression of the lug pressing block 8 prevents the case 100 from deflecting vertically. The sidewalls 13a of the case positioning groove 13, in combination with the compression of the lug pressing block 8, prevent the case 100 from deflecting vertically or shifting horizontally.

[0035] Under this constraint, the anti-deflection positioning block 5 prevents the watch case or lug from rotating horizontally, so that the watch case 100 is not easily offset or deflected after being positioned on the fixture, thereby better ensuring the processing quality of the gong when the watch case 100 is placed in the gong-hiding position. The watch case positioning groove 13 is arranged to be gradually inclined inward from top to bottom, so that the gong-hiding position fixture can be used to resist the side of watch cases of different sizes.

[0036] Preferably, the cross-section of the case positioning groove 13 is circular.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A tool for concealing the bottom of a gong for a watch case having lugs, characterized in that: The base comprises a top cover detachably connected to the base, a workpiece positioning area is provided on the top of the base, and the workpiece positioning area has a central area for supporting the watch case to be processed; A plurality of anti-deflection positioning blocks are provided on the top of the base, and the plurality of anti-deflection positioning blocks are arranged around the central area in the horizontal direction; The base is also provided with a positioning block adjustment assembly corresponding to the anti-deflection positioning block one by one, and the positioning block adjustment assembly is configured to linearly move the anti-deflection positioning block to the center close to the center area / to linearly move the anti-deflection positioning block to the center away from the center area in the horizontal direction; A machining avoidance hole corresponding to the workpiece positioning area is vertically penetrated on the top cover, and a lug pressing block is also connected to the top cover. When the top cover is connected to the base, the lug pressing block presses the lugs of the watch case from top to bottom.

2. The gong bottom tooling according to claim 1, characterized in that: The positioning block adjustment assembly includes a guide slot horizontally arranged on the top of the base, the guide slot having a guide length direction that is horizontally oriented toward the center of the central area, and an adjustment slider is arranged in the guide slot; One end of the adjusting slider passes through the guide slot along the length direction of the guide slot and is connected to the corresponding anti-deflection positioning block, and a pressure spring is provided between the other end of the adjusting slider and the inner wall of the opposite guide slot.

3. The gong bottom tooling according to claim 1 or 2, characterized in that: The top of the base is provided with multiple vertically arranged screw holes and multiple vertically arranged positioning columns; the top cover is vertically penetrated by fixing holes corresponding one to one with the screw holes, and the fixing holes are provided with connecting bolts whose screw parts can pass through the fixing holes and be screwed to the screw holes; the top cover is vertically provided with positioning holes corresponding one to one with the positioning columns.

4. The gong bottom tooling according to claim 3, characterized in that: A plurality of fixing holes and a plurality of positioning holes are arranged on a plane around the machining avoidance hole, and the fixing holes and the positioning holes are arranged in a staggered manner with each other.

5. The gong bottom-hiding tooling according to claim 1, 2 or 4, characterized in that: A case positioning groove is provided on the central area, and the side walls of the case positioning groove are gradually inclined inward from top to bottom.

6. The gong bottom tooling according to claim 3, characterized in that: The cross-section of the positioning groove of the watch case is a circle.

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