Laser spot welding jig for mobile phone rotating shaft

Abstract

The utility model relates to the technical field of mobile phone rotating shaft machining, in particular to a laser spot welding jig for a mobile phone rotating shaft, which comprises a pressure fixing mechanism and a laser electric welding mould, the pressure fixing mechanism comprises a base and a fixing cylinder, the number of the fixed air cylinders is two, the two fixed air cylinders are fixedly installed on the installation step, an installation groove is formed in the boss in the length direction of the boss, the laser electric welding mold is installed in the installation groove and comprises a lower mold plate and an upper mold plate buckled on the lower mold plate, and a lower mold groove is formed in the lower mold plate. An upper die groove is formed in the upper die plate, and when the lower die plate and the upper die plate are buckled, a die cavity for containing a mobile phone rotating shaft is formed by the lower die groove and the upper die groove. The nut welding device has the advantages of being simple in structure, reasonable in design, good in nut welding consistency and high in welding qualification rate, and therefore the machining efficiency of the mobile phone rotating shaft is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone shaft processing, in particular to a laser spot welding jig for a mobile phone shaft. Background Art

[0002] With the rapid development of the economy, the development of mobile phones has also advanced by leaps and bounds. Smartphones have become popular in the market, with powerful functions and high practicality. Smartphones have begun to develop in depth towards the discovery of larger screens and faster speeds. Larger mobile phone screens can provide users with more functionality and a better user experience. Most mobile phone manufacturers today hope to provide users with larger screen sizes, but do not want large screens to become an unfavorable factor affecting the portability of mobile phones. Foldable mobile phones have become the first choice for these mobile phone manufacturers. Most of the foldable smartphones on the market today control the connection, rotation and folding of the two screens through the mobile phone hinge. Therefore, the production and processing efficiency of the mobile phone hinge is crucial.

[0003] In order to connect the two screens and the corresponding parts on the mobile phone shaft, it is necessary to laser weld the nuts at the corresponding positions on the mobile phone shaft. The current traditional production method is to manually place the nuts directly at the corresponding positions of the shaft workpiece, and then perform laser welding. However, since the nut parts are too small, the placement accuracy requirements are high, resulting in a low pass rate for manually placed nuts for welding and low work efficiency. For this reason, the inventor designed a laser spot welding fixture for mobile phone shafts. Utility Model Content

[0004] The purpose of the utility model is to provide a laser spot welding jig for a mobile phone shaft, which has the advantages of simple structure, reasonable design, good consistency of nut welding, and high welding qualification rate, thereby effectively improving the processing efficiency of the mobile phone shaft and solving the problem of large errors and imprecise placement of small nuts when placed manually.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser spot welding fixture for a mobile phone shaft, comprising a pressure fixing mechanism and a laser welding mold, the pressure fixing mechanism comprising a base and a fixed cylinder, wherein the base is composed of a boss and mounting steps arranged at both ends of the boss, two fixed cylinders are provided, the two fixed cylinders are fixedly installed on the mounting steps, a mounting groove is provided on the boss along its length direction, the laser welding mold is installed in the mounting groove and fixed by the fixed cylinder, the laser welding mold comprises a lower template and an upper template buckled on the lower template, a lower mold groove is provided on the lower template, an upper mold groove is provided on the upper template, when the lower template is buckled with the upper template, the lower mold groove and the upper mold groove form a mold cavity, the mobile phone shaft to be processed is placed in the mold cavity, and a magnet for fixing the mobile phone shaft is also provided in the mold cavity.

[0006] Preferably, the depth of the mounting groove is smaller than the thickness of the lower template.

[0007] Preferably, a connecting shaft is provided at the output end of the fixed cylinder, and a pressing block is connected to the connecting shaft. The pressing block is in contact and connected with the upper template under the action of the fixed cylinder.

[0008] Preferably, positioning holes are formed at both ends of the lower template, and positioning columns matched with the positioning holes are provided on the upper template.

[0009] Preferably, the upper end surface of the upper mold plate is provided with a welding groove along its length direction, and there are two welding grooves, the two welding grooves are arranged in parallel, and a plurality of observation windows are equidistantly arranged between the two welding grooves, and each welding groove and the plurality of observation windows are connected to the upper mold groove.

[0010] Preferably, the lower mold groove and the upper mold groove are both provided with a plurality of magnet grooves for installing magnets, and the plurality of magnet grooves are evenly distributed on the lower mold plate and the upper mold plate.

[0011] Preferably, the upper die groove is provided with a plurality of nut grooves for placing nuts, and the nut grooves correspond to the positions of the observation windows one by one.

[0012] Preferably, the cross section of the magnet is U-shaped.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model provides a laser spot welding jig for a mobile phone shaft, which includes a pressure fixing mechanism and a laser welding mold. The overall structure is simple and the design is reasonable. The pressure fixing mechanism is used to fix the laser welding mold to prevent the mobile phone shaft from being displaced during the welding of the nut, thereby effectively improving the yield of the processed product.

[0015] 2. The laser welding mold in the utility model includes a lower template and an upper template buckled on the lower template, a lower mold groove is opened on the lower template, and an upper mold groove is opened on the upper template. When the lower template is buckled with the upper template, the lower mold groove and the upper mold groove form a mold cavity, and the mobile phone shaft to be processed is placed in the mold cavity and fixed by a magnet. By opening a plurality of nut grooves for placing nuts on the upper mold groove, during welding, the nuts are placed in the nut grooves, and the nuts are welded to the mobile phone shaft through two parallel welding grooves. By arranging an observation window on the welding groove, the position of the observation window corresponds to the position of the nut groove one by one, so that the user or the CCD camera can check the welding effect. By welding in this way, the consistency of the nut welding position can be ensured, thereby improving the yield of the product. At the same time, automated equipment can be used for welding to improve welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the overall structure diagram of the utility model;

[0017] Figure 2 This is a structural diagram of the pressure fixing mechanism of the utility model;

[0018] Figure 3 This is a structural diagram of the base of the utility model;

[0019] Figure 4 This is an exploded view of the laser welding mold of the utility model;

[0020] Figure 5 It is the structural diagram of the upper template of the utility model.

[0021] The reference numerals and names in the figures are as follows:

[0022] 1. Pressure fixing mechanism; 11. Base; 111. Boss; 112. Mounting step; 113. Mounting groove; 12. Fixed cylinder; 121. Connecting shaft; 122. Press block; 2. Laser welding mold; 21. Lower mold plate; 22. Upper mold plate; 23. Lower mold groove; 24. Upper mold groove; 25. Magnet; 26. Positioning hole; 27. Positioning column; 28. Welding groove; 29. ​​Observation window; 210. Nut groove; 211. Magnet groove; 3. Mobile phone shaft; 4. Nut. DETAILED DESCRIPTION

[0023] 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 part of the embodiments of the utility model, not all of the 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.

[0024] In the description of the embodiments of the present utility model, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0026] See also Figure 1 The utility model provides an embodiment: a laser spot welding jig for a mobile phone shaft, which consists of a pressure fixing mechanism 1 and a laser welding mold 2. The overall structure is simple and the design is reasonable, wherein the laser welding mold 2 is installed on the pressure fixing mechanism 1 and fixed by the pressure fixing mechanism 1.

[0027] See also Figure 2 and Figure 3 The pressure fixing mechanism 1 in the figure includes a base 11 and a fixed cylinder 12, wherein the base 11 is in a "convex" shape, and the base 11 is composed of a boss 111 and mounting steps 112 arranged at both ends of the boss 111. There are two fixed cylinders 12, and the two fixed cylinders 12 are fixedly installed on the mounting steps 112. A mounting groove 113 is provided on the boss 111 along its length direction. A connecting shaft 121 is provided at the output end of each fixed cylinder 12, and a pressure block 122 is connected to the connecting shaft 121. The pressure block 122 is in contact and connected with the laser welding mold 2 under the action of the fixed cylinder 12.

[0028] See also Figure 4 and Figure 5The laser welding mold 2 in the figure is installed in the above-mentioned installation groove 113 and fixed by a fixed cylinder 12. The laser welding mold 2 includes a lower template 21 and an upper template 22 buckled on the lower template 21. A lower mold groove 23 is opened on the lower template 21, and an upper mold groove 24 is opened on the upper template 22. When the lower template 21 is buckled with the upper template 22, the lower mold groove 23 and the upper mold groove 24 form a mold cavity, and the mobile phone shaft 3 to be processed is placed in the mold cavity. A magnet 25 for fixing the mobile phone shaft 3 is also arranged in the mold cavity, and the cross-section of the magnet 25 is U-shaped.

[0029] Specifically, positioning holes 26 are formed at both ends of the lower template 21 , and positioning columns 27 matched with the positioning holes 26 are provided on the upper template 22 .

[0030] Specifically, the upper end surface of the upper mold plate 22 is provided with a welding groove 28 along its length direction. There are two welding grooves 28, the two welding grooves 28 are arranged in parallel, and a plurality of observation windows 29 are equidistantly arranged between the two welding grooves 28, and each welding groove 28 and the plurality of observation windows 29 are connected to the upper mold groove 24.

[0031] Specifically, the lower mold groove 23 and the upper mold groove 24 are both provided with a plurality of magnet grooves 211 for mounting the magnets 25 , and the plurality of magnet grooves 211 are evenly distributed on the lower mold plate 21 and the upper mold plate 22 .

[0032] Specifically, the upper mold groove 24 is provided with a plurality of nut grooves 210 for placing nuts 4, and the nut grooves 210 correspond one-to-one to the positions of the observation windows 29. The welding conditions of the nuts 4 can be checked through the observation windows 29. In this embodiment, the aperture value of the observation window 29 is smaller than the outer diameter value of the nut 4.

[0033] Please refer again Figure 3 and Figure 4 In this embodiment, the depth of the mounting groove 113 is less than the thickness of the lower template 21 .

[0034] Please refer again Figures 1 to 5When the laser spot welding jig of the utility model is working, the laser spot welding jig is first fixedly installed on the welding table of the welding machine (not shown in the figure), and the nut 4 to be welded is manually placed in the nut groove 210 of the upper template 22. After all the nut grooves 210 are placed with the correct nuts 4, the mobile phone shaft 3 is covered in the upper mold groove 24 of the upper template 22 in a covering manner, and then the magnet 25 is placed in the magnet groove 211 of the upper template 22. The mobile phone shaft 3 is fixedly adsorbed on the upper template 22 by the magnet 25, and finally the lower template 21 is combined with the upper template 22, and turned over at the same time. 180 degrees, the laser welding mold 2 is placed in the installation groove 113, and limited by the installation groove 113, and finally the two fixed cylinders 12 are pressed on the laser welding mold 2 to fix the laser welding mold 2. At this time, the laser welding head of the welding machine (not shown in the figure) welds the nut 4 along the two welding grooves 28, and welds the nut 4 to the mobile phone shaft 3. Finally, the mold is opened to take out the mobile phone shaft 3. By adopting the laser spot welding fixture in this embodiment, the processing efficiency of the mobile phone shaft 3 can be effectively improved, and the consistency of the nut 4 welding can be ensured, thereby improving the welding qualification rate.

[0035] It is obvious 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 features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A laser spot welding fixture for a mobile phone shaft, characterized in that: The invention comprises a pressure fixing mechanism (1) and a laser welding mold (2), wherein the pressure fixing mechanism (1) comprises a base (11) and a fixed cylinder (12), wherein the base (11) is composed of a boss (111) and mounting steps (112) arranged at both ends of the boss (111), two fixed cylinders (12) are provided, and the two fixed cylinders (12) are fixedly mounted on the mounting steps (112), and a mounting groove (113) is provided on the boss (111) along its length direction, and the laser welding mold (2) is mounted in the mounting groove (113). 13) and fixed by a fixed cylinder (12), the laser welding mold (2) comprises a lower mold plate (21) and an upper mold plate (22) buckled on the lower mold plate (21), a lower mold groove (23) is provided on the lower mold plate (21), and an upper mold groove (24) is provided on the upper mold plate (22), when the lower mold plate (21) is buckled with the upper mold plate (22), the lower mold groove (23) and the upper mold groove (24) form a mold cavity, the mobile phone shaft (3) to be processed is placed in the mold cavity, and a magnet (25) for fixing the mobile phone shaft (3) is also provided in the mold cavity.

2. The laser spot welding jig for a mobile phone shaft according to claim 1, characterized in that: The depth of the installation groove (113) is less than the thickness of the lower template (21).

3. The laser spot welding jig for a mobile phone shaft according to claim 1, characterized in that: The output end of the fixed cylinder (12) is provided with a connecting shaft (121), and a pressing block (122) is connected to the connecting shaft (121). The pressing block (122) is in contact and connected with the upper template (22) under the action of the fixed cylinder (12).

4. The laser spot welding jig for a mobile phone shaft according to claim 1, characterized in that: Positioning holes (26) are provided at both ends of the lower template (21), and positioning columns (27) adapted to the positioning holes (26) are provided on the upper template (22).

5. The laser spot welding jig for a mobile phone shaft according to claim 1, characterized in that: The upper end surface of the upper mold plate (22) is provided with a welding groove (28) along its length direction, and two welding grooves (28) are provided, the two welding grooves (28) are arranged in parallel, and a plurality of observation windows (29) are arranged equidistantly between the two welding grooves (28), and each welding groove (28) and the plurality of observation windows (29) are connected to the upper mold groove (24).

6. The laser spot welding jig for a mobile phone shaft according to claim 1, characterized in that: The lower die groove (23) and the upper die groove (24) are both provided with a plurality of magnet grooves (211) for mounting magnets (25), and the plurality of magnet grooves (211) are evenly distributed on the lower die plate (21) and the upper die plate (22).

7. The laser spot welding jig for a mobile phone shaft according to claim 1, characterized in that: The upper die groove (24) is provided with a plurality of nut grooves (210) for accommodating nuts (4), and the positions of the nut grooves (210) and the observation windows (29) correspond one to one.

8. The laser spot welding jig for a mobile phone shaft according to claim 1, characterized in that: The cross section of the magnet (25) is U-shaped.

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