CN201807839U - Mobile phone sliding plate and nut laser welding fixture - Google Patents

Abstract

The utility model relates to a welding jig especially relates to a cell-phone slide and nut laser welding anchor clamps down. The pressing device is characterized in that a nut mounting hole is formed in the bottom plate, a jacking device is arranged in the nut mounting hole, and a welding hole with the diameter larger than the outer diameter of the nut is formed in the position, opposite to the nut mounting hole, of the upper pressing plate. The flatness variation of the lower sliding plate after batch welding is less than 0.01mm, so that the technical requirement on the flatness is met.

Description

Mobile phone sliding plate and nut laser welding fixture

technical field

The utility model relates to a welding jig, in particular to a laser welding jig for a mobile phone slide plate and a nut. The change in flatness of the lower plate after batch welding is less than 0.01mm, which meets the technical requirements for flatness.

Background technique

As shown in Figures 1 and 2, the lower plate 1 of the mobile phone is stamped from a 0.4mm thick stainless steel plate. The sliding quality of the cover generally requires the flatness of the lower plate 1 to be 0.1 mm. The lower plate 1 is also provided with a plurality of nuts 2 for installing the C shell. The hole diameter of the nuts 2 is M1.4, and the outer diameter The height is 2.5mm, and the height is 3.4mm and 2.4mm. In order to reduce welding deformation, the nut is welded to the sliding plate by laser welding. In order to facilitate positioning and welding, the sliding plate 1 is provided with a positioning hole, and the end surface of the nut 2 is processed with a height of 0.4mm step, the step shaft is inserted into the positioning hole. The step surface is flat with the upper surface of the sliding plate, the end surface of the step shaft is flush with the lower surface of the sliding plate, and laser welding is carried out between the lower surface of the sliding plate, the end face of the step shaft and the positioning hole. In the free state, the deformation of the lower plate after welding makes the flatness greatly exceed the technical requirement of 0.1mm. Considering the flatness error of the stamping part itself and other factors, the error range allocated to the welding deformation can only be less than 0.01mm. For the lower plate and nut of the mobile phone, the biggest feature of the welding is that the plate is thin, and the welding is at a local position inside the plate. This kind of local heating and weld shrinkage can easily cause the thin plate parts to lose stability and cause warping deformation. The usual solution is to pass Post-welding shaping, hot pressing, and stress-relief annealing. During the welding process, clamps are used to compress the workpiece to be welded to minimize welding deformation. The plate needs to be pressed tightly on the stepped surface of the nut (as shown in Figure 3) . However, the above measures cannot be implemented in the welding of the mobile phone sliding plate and the nut. 1. The mobile phone sliding plate has a large batch size and is mass-produced on an assembly line. If it is reshaped and hot-pressed after welding, the cost will be greatly increased; 2. The nut is small. Use a clamp to press the lower plate against the stepped surface of the nut, and welding will not be possible.

How to solve the problem of welding deformation is an urgent problem in the manufacture of mobile phone sliding boards.

Contents of the invention

The main purpose of the utility model is to overcome the defect that the flatness of the existing mobile phone slide plate and nut laser welding cannot meet the technical requirements, and provide a new structure of mobile phone upper slide plate and nut laser welding fixture, so that the mobile phone can be lowered. After the slide plate and the nut are laser welded, the flatness of the slide plate does not change more than 0.01mm, which meets the needs of mass production on the assembly line.

The purpose of this utility model and its technical solution are to adopt the following technical solutions to achieve.

According to the utility model, a mobile phone sliding board and nut laser welding fixture includes a base plate, an upper pressing plate pressed on the base plate and a pressing device, wherein the base plate is provided with a nut mounting hole, and the nut mounting hole is A pressing device is provided, and a welding hole with a diameter larger than the outer diameter of the nut is provided on the upper pressing plate relative to the nut installation hole.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

The aforementioned mobile phone slide plate and nut laser welding fixture, wherein the nut mounting hole is a stepped hole formed by two coaxial holes, the diameter of the upper hole is slidingly fitted with the outer diameter of the nut to be welded, and the diameter of the lower hole is larger than the upper hole Diameter; the pressing device includes a stepped push rod arranged in the stepped hole, a spring arranged under the push rod and a stopper for pressing the spring.

In the laser welding fixture for the lower plate and nut of the mobile phone mentioned above, the pressing device includes a hinge on one side of the upper plate and the bottom plate to connect the upper plate and the bottom plate, and a hinge on the other side of the upper frame and the lower frame. Quick presser on one side.

The aforementioned mobile phone lower plate and nut laser welding fixture, wherein the lower hole of the stepped hole is a screw hole with a diameter larger than the diameter of the upper hole, and the stopper of the top pressure spring is a pressure regulating stud, and the pressure regulating stud is screwed. It is arranged in the screw hole of the lower hole of the ladder.

The aforementioned mobile phone lower plate and nut laser welding fixture is provided with an upper frame and a lower frame. The upper frame and the lower frame are respectively provided with multiple sets of bottom plates and upper pressure plates. The stopper that presses the spring is the box below.

The aforementioned mobile phone slide plate and nut laser welding fixture, wherein the pressing device is a hinge that connects the upper and lower frames on one side of the upper frame and the lower frame, and a hinge that is arranged on the other side of the upper frame and the lower frame. Quick presser on one side.

The above-mentioned mobile phone upper slide plate and nut laser welding fixture, wherein the pressing device is provided with at least two sets of positioning holes and positioning pins corresponding to the diagonal positions of the upper frame and the lower frame, and the upper frame and the lower frame The two sides are respectively provided with quick pressers.

In the laser welding jig for the mobile phone upper slide plate and the nut, the diameter of the welding hole on the upper pressing plate is equal to the outer diameter of the nut plus 2 to 3 mm.

The above-mentioned laser welding fixture for the upper slide plate and the nut of the mobile phone, wherein the models of the quick compactor are: 20100, 20300, 20400, 20800.

In the aforementioned laser welding fixture for the lower plate and the nut of the mobile phone, the upper frame and the lower frame are respectively provided with 4 to 8 sets of bottom plates and upper pressure plates.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. By virtue of the above-mentioned technical solution, the utility model of the mobile phone sliding plate and the nut laser welding jig can achieve considerable technical progress and practicality, and has a wide range of industrial application value. It has at least the following advantages:

1. The laser welding fixture of the mobile phone sliding plate and the nut solves the deformation problem of the mobile phone sliding plate and the nut laser welding. The deformation of the flatness of the sliding plate after welding is less than 0.01, which meets the technical requirements and ensures the product quality.

2. The utility model adopts a pair of fixtures to clamp multiple workpieces to be welded at the same time, which not only improves the productivity, but also because the time required for one assembly is the same as the welding time, so that the production line can be adjusted according to a certain beat. sequence to meet the mass production needs of assembly line operations.

3. The utility model of the mobile phone sliding plate and nut laser welding jig is not only convenient to use, but also simple in structure, in line with cost-effectiveness, and indeed has industrial utilization value, and is suitable for extensive promotion and use in the industry.

To sum up, the mobile phone sliding plate and nut laser welding fixture of the present invention has many advantages and practical value mentioned above. It has great improvement in structure and function, significant progress in technology, and has produced good results. It is a novel, progressive and practical new design with practical and practical effects.

The above description is only an overview of the technical solutions of the present utility model. In order to better understand the technical means of the present utility model, it can be implemented according to the contents of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present utility model better It is obvious and easy to understand. The preferred embodiments are specifically cited below, together with the accompanying drawings, and detailed descriptions are as follows.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of the appearance of the workpiece welded by the mobile phone sliding plate and the nut laser welding jig of the present invention.

Fig. 2 is a schematic cross-sectional view of a workpiece welded by a mobile phone sliding plate and a nut laser welding jig of the present invention.

Fig. 3 is a structural schematic diagram of a commonly used welding fixture.

Fig. 4 is a structural cross-sectional view of Embodiment 1 of the laser welding fixture for the sliding plate and the nut of the mobile phone of the present invention.

Fig. 5 is a structural schematic diagram of Embodiment 2 of the laser welding jig for the sliding plate and the nut of the mobile phone of the present invention.

Fig. 6 is a structural schematic diagram of Embodiment 3 of the laser welding jig for the sliding plate and the nut of the mobile phone of the present invention.

Fig. 7 is a top view schematic diagram of the mobile phone sliding plate and the nut laser welding jig of the present invention.

Detailed ways

In order to further explain the technical means and effects of the utility model to achieve the intended purpose of the utility model, the specific implementation of the mobile phone sliding plate and nut laser welding fixture proposed according to the utility model will be described below in conjunction with the accompanying drawings and preferred embodiments. , structure, feature and effect thereof, detailed description is as follows.

Embodiment one

Please refer to Fig. 4, the mobile phone lower plate and nut laser welding fixture of the preferred embodiment of the present invention includes a base plate 10, an upper pressing plate 11 pressed on the base plate 10 and a pressing device 40, wherein the base plate 10 is A nut installation hole 12 is provided, and a pressing device 50 is arranged in the nut installation hole 12, and a welding hole 13 having a diameter larger than the outer diameter of the nut is provided on the upper pressing plate 11 relative to the nut installation hole 12.

The nut installation hole 12 is a stepped nut installation hole formed by two coaxial holes up and down, wherein the diameter of the upper hole 121 is slidingly matched with the outer diameter of the nut 2 to be welded, and the diameter of the lower hole 122 is greater than that of the upper hole; The pressing device 50 includes a stepped ejector rod 51 disposed in the stepped nut mounting hole 12, a spring 52 arranged under the ejector rod 51, and a retainer for pressing the spring 52. In this embodiment Among them, the lower hole 122 is a screw hole with a diameter larger than that of the upper hole, and the stopper that presses the spring 52 is a pressure regulating stud 53, and the pressure regulating stud 53 is screwed in the lower hole of the ladder. 122 screw holes. By adjusting the pressure of the pressure regulating stud 53 on the spring 52, the amount of deformation after welding can be controlled.

The diameter of the welding hole 13 on the upper pressing plate 11 is equal to the outer diameter of the nut plus 4-6 mm. Under the condition of meeting the welding construction requirements, the smaller the diameter of the welding hole, the better.

In order to improve efficiency, the base plate and the upper platen described in this embodiment can be assembled and welded simultaneously with multiple mobile phone upper slide plates.

The pressing device 40 is: a hinge 41 is provided on one side of the bottom plate 10 and the upper pressing plate 11 , and a quick presser 42 is arranged on the other side of the bottom plate and the upper pressing plate.

When working, first turn the upper platen 11 around the hinge 41 to open it, put the nut 2 into the upper plane of the bottom plate 10, put the lower plate 1 of the mobile phone on it, turn the upper platen 11 around the hinge in reverse and fasten it on the bottom plate 10, and then The mobile phone sliding plate 1 is compressed between the upper pressing plate 11 and the bottom plate 10 by the pressing device 40 , and the nut 2 pushes up the mobile phone sliding plate 1 under the action of the pressing device 50 . By adjusting the upward force of the pressing device 50, the post-weld deformation can be controlled.

Embodiment two

Fig. 5 is a schematic structural diagram of Embodiment 2 of the utility model. The mobile phone lower plate and nut laser welding fixture of the present embodiment includes a base plate 20, an upper plate 21 pressed on the base plate 20, and a pressing device 40, wherein the base plate 20 is provided with a nut mounting hole 22, and the nut is installed A pressing device 50 is provided in the hole 22 , and a welding hole 23 with a diameter larger than the outer diameter of the nut is provided on the upper pressing plate 21 relative to the nut installation hole 22 .

The nut mounting hole 22 is a stepped nut mounting hole formed by two upper and lower coaxial holes, wherein the diameter of the upper hole 221 is slidingly matched with the outer diameter of the nut 2 to be welded, and the diameter of the lower hole 222 is greater than that of the upper hole; The pressing device 50 includes a stepped push rod 51 disposed in the stepped nut installation hole 22 and a spring 52 disposed under the push rod 51 . The difference between the present embodiment and the first embodiment is that upper and lower frames 24, 25 are provided, and multiple sets of upper pressing plates 21 and bottom plates 20 are respectively fixed in the upper and lower frames 24, 25; weight. In this embodiment, the stopper of the pressing spring 52 is the lower frame 25 , that is, the spring 52 under the push rod 51 is pressed by the lower frame 25 .

The pressing device 40 is provided with a hinge 41 connecting the upper and lower frames on one side of the upper frame 24 and the lower frame 25, and a quick presser is provided on the other side of the upper frame 24 and the lower frame 25. 42.

When working, the upper pressing plate 21 is first opened by turning the upper frame around the hinge 41, and the nut 2 is put into the nut mounting hole 22 of the bottom plate 20, and the nut is pushed by the pressing device 50, so that the stepped surface of the nut is higher than that of the bottom plate On the upper plane, put the lower plate 1 of the mobile phone, turn the upper platen 21 around the hinge in reverse and buckle it on the bottom plate 20, and then use the pressing device 40 to press the upper platen 1 of the mobile phone between the upper platen 21 and the bottom plate 20 , the nut 2 pushes up the mobile phone sliding plate 1 under the action of the pressing device 50 . Through the pre-designed upward force of the spring in the pressing device 50, the post-weld deformation can be controlled.

Embodiment three

As shown in Figure 6 is a schematic structural diagram of Embodiment 3 of the laser welding fixture for the mobile phone sliding plate and the nut. It includes a base plate 30, an upper pressing plate 31 pressed on the base plate 30, and a pressing device 60, wherein the base plate 30 is provided with a nut mounting hole 32, and the nut mounting hole 32 is provided with a top pressing device 50, and the upper A welding hole 33 with a diameter larger than the outer diameter of the nut is provided on the pressure plate 31 relative to the nut installation hole 32 .

The nut mounting hole 32 is a stepped nut mounting hole formed by two upper and lower coaxial holes, wherein the diameter of the upper hole 321 is in sliding fit with the outer diameter of the nut 2 to be welded, and the lower hole 322 is a screw hole with a diameter greater than that of the upper hole The pressing device 50 includes a stepped push rod 51 disposed in the stepped nut mounting hole 32, a spring 52 arranged below the push rod 51, and a stopper that presses the spring 52 are adjustable Press the stud 53 , and the pressure regulating stud 53 is screwed in the screw hole of the stepped lower hole 322 . By adjusting the pressure of the pressure regulating stud 53 on the spring 52, the amount of deformation after welding can be controlled.

The main difference between this embodiment and Embodiment 1 is that the structure of the pressing device is different. In this embodiment, upper and lower frames 34, 35 are also provided to reduce weight, and multiple groups of bottom plates 30 and upper pressing plates 31 are correspondingly provided on the upper frame 34 and the lower frame 35 respectively, and the pressing device 60 Yes: At least two sets of positioning holes 61 and positioning pins 62 are correspondingly provided at the diagonal positions of the upper frame 34 and the lower frame 35, and the two sides of the upper frame 34 and the lower frame 35 are respectively provided with quick clamps 42 .

When working, the upper pressing plate 11 is first opened by turning the upper frame around the hinge 41, and the nut 2 is put into the nut mounting hole 12 of the bottom plate 10, and the nut is pushed by the pressing device 50, so that the stepped surface of the nut is higher than the bottom of the bottom plate. On the upper plane, put the lower plate 1 of the mobile phone, turn the upper platen 11 around the hinge and fasten it on the bottom plate 10, and then use the pressing device 40 to compress the lower plate 1 of the mobile phone between the upper platen 11 and the bottom plate 10 , the nut 2 pushes up the mobile phone sliding plate 1 under the action of the pressing device 50 . By adjusting the upward force of the pressing device 50, the post-weld deformation can be controlled.

The quick compactor 42 is a purchased part, and a horizontal quick compactor (also called a horizontal quick clamp) can be used, and the specific models are: 20100, 20300, 20400, 20800. Vertical quick presses are also available.

In Embodiments 2 and 3, the upper frame and the lower frame are respectively provided with 4 to 8 sets of base plates and upper pressing plates, and each set of base plates and upper pressing plates is used to assemble and weld a mobile phone lower plate. The number of the bottom plate and the upper platen depends on the time required for one assembly and the welding time, and the time of the two should be the same as much as possible, so that the production line can be carried out in a certain rhythm and orderly to meet the mass production requirements of flow operation.

The above are only preferred embodiments of the present utility model, and do not limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any Those who are familiar with this profession, without departing from the scope of the technical solution of the present utility model, can use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all without departing from the technical solution of the utility model Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.

Claims (10)

1. mobile phone lower skateboard and nut fixture for laser welding, comprise base plate, be pressed in top board and hold down gag on the base plate, it is characterized in that described base plate is provided with the nut installing hole, be provided with jack unit in the described nut installing hole, be provided with the welding hole of diameter with respect to the nut position of mounting hole on the described top board greater than described nut external diameter.

2. mobile phone lower skateboard according to claim 1 and nut fixture for laser welding, it is characterized in that the shoulder hole that described nut installing hole is constituted for two coaxial apertures up and down, the diameter of wherein going up the hole is slidingly matched with the external diameter that is welded nut, and following bore dia is greater than last bore dia; Described jack unit comprises the stairstepping push rod of being located in the described shoulder hole, is located at the spring below the described push rod and the block piece of the described spring of roof pressure.

3. mobile phone lower skateboard according to claim 1 and nut fixture for laser welding, it is characterized in that described hold down gag, comprise the hinge that is connected described top board and base plate of being located at described top board and base plate one side and be located at described upper ledge and the quick compactor of lower frame opposite side.

4. mobile phone lower skateboard according to claim 2 and nut fixture for laser welding, the following hole that it is characterized in that described shoulder hole is the screw of diameter greater than last bore dia, the block piece of described top pressure spring is the pressure regulation double-screw bolt, and described pressure regulation double-screw bolt is located in the screw in hole under the described ladder.

5. mobile phone lower skateboard according to claim 2 and nut fixture for laser welding is characterized in that being provided with upper ledge and lower frame, group base plates and top boards more than correspondence is provided with respectively on described upper ledge and the lower frame, and the block piece of the described spring of described roof pressure is described lower frame.

6. mobile phone lower skateboard according to claim 5 and nut fixture for laser welding is characterized in that described hold down gag is to be located at the hinge that is connected described upper and lower frame of described upper ledge and lower frame one side and to be located at described upper ledge and the quick compactor of lower frame opposite side.

7. mobile phone lower skateboard according to claim 1 and nut fixture for laser welding, it is characterized in that described hold down gag is that diagonal position correspondence in described upper ledge and lower frame is provided with at least two group locating hole and shop bolts, the both sides of described upper ledge and lower frame are respectively equipped with quick compactor.

8. mobile phone lower skateboard according to claim 1 and nut fixture for laser welding, the diameter that it is characterized in that the welding hole on the described top board equals the nut external diameter and adds 2～3mm.

9. according to each described mobile phone lower skateboard and nut fixture for laser welding in claim 3 or 6 or 7, it is characterized in that the model of described quick compactor is: 20100,20300,20400,20800.

10. mobile phone lower skateboard according to claim 5 and nut fixture for laser welding is characterized in that on described upper ledge and the lower frame that correspondence is provided with 4～8 groups of base plates and top board respectively.

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