Middle plate welding jig

Abstract

The utility model relates to a middle plate welding jig which comprises a base, a material pressing assembly and a positioning assembly, the material pressing assembly comprises an avoiding moving assembly and a pressing plate assembly, an avoiding hole is formed in the pressing plate assembly, the positioning assembly comprises a positioning mold core, an outer frame positioning block and an inner positioning block, the outer frame positioning block is attached to the corner of the outer side of an outer frame body, and the inner positioning block is attached to the inner side of the outer frame body. The periphery of the inner positioning block is attached to the hole wall of the hollow hole of the middle plate, the avoiding moving assembly has the translation and lifting functions, the positioning assembly is further provided with an outer shaping block, the outer shaping block is connected to an outer shaping air cylinder on the base, and the outer shaping block is tightly pressed on the outer side of the outer frame body during welding. The outer frame body is positioned through the outer frame positioning block in the positioning assembly, the metal middle plate is positioned through the inner positioning block, the long edge of the outer frame body is prevented from being deformed through the outer shaping block, accurate contact with the metal middle plate is facilitated, the positions of the assembled metal middle plate and the outer frame body are conveniently kept through the pressing plate assembly, and the assembly efficiency is improved. And the avoiding moving assembly facilitates avoiding of the pressing plate assembly.

Description

Technical Field

[0001] The utility model relates to a welding jig, in particular to a middle plate welding jig. Background Art

[0002] In order to improve the overall strength of digital products such as mobile phones, an outer frame is usually set, and a metal middle plate is set inside the outer frame to further improve the strength of the entire product. Since the width of the metal middle frame is large and the thickness of the metal middle plate is low, if the frame and the metal middle plate are processed as one, the processing efficiency will be low, and since the metal middle plate is thin, the yield rate will be low when cutting. Comprehensive consideration is taken of the existing methods, which generally process the outer frame and the metal middle plate separately, and then perform laser welding after processing. The existing laser welding has low welding accuracy. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a middle plate welding jig.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a middle plate welding fixture, comprising a base, a pressing component arranged on the base, and a positioning component arranged on the base, the pressing component comprising an avoidance moving component, a pressure plate component arranged on the avoidance moving component, the pressure plate component is provided with avoidance holes for avoiding welding points, the positioning component comprises a positioning mold core, an outer frame positioning block arranged at the corner of the positioning mold core, and an inner positioning block arranged on the top of the positioning mold core, the outer frame positioning block is fitted to the outer corner of the outer frame body, the outer periphery of the inner positioning block is fitted to the hollow hole wall of the middle plate, the avoidance moving component has translation and lifting functions, the positioning component is also provided with an outer shaping block, the outer shaping block is connected to the outer shaping cylinder on the base, and the outer shaping block is pressed against the outer side of the outer frame body during welding.

[0005] As a further improvement of the present design, the outer shaping frame is pressed tightly against the outer side of the longer side of the outer frame during welding.

[0006] As a further improvement of the present design, the positioning assembly is further provided with an inner shaping claw, which is connected to the inner shaping cylinder on the base. The inner shaping claw presses the inner side of the outer frame during welding and is arranged opposite to the outer shaping block.

[0007] As a further improvement of the present design, the inner shaping claws press the inner middle portion of the outer frame during welding.

[0008] As a further improvement of the present design, the external shaping block comprises a connecting seat connected to the external shaping cylinder and a clamping strip arranged on the connecting seat, the side of the clamping strip that is in contact with the outer frame is a contoured surface, and the clamping strip is detachably connected to the connecting seat.

[0009] As a further improvement of the present design, the avoidance movement assembly includes a horizontally arranged translation assembly and a vertically arranged lifting cylinder, and the lifting cylinder is connected to the pressure plate assembly.

[0010] As a further improvement of the present design, the translation assembly is two rodless cylinders arranged in parallel, the rodless cylinders are respectively located on both sides of the positioning assembly, and each of the rodless cylinders is connected to a lifting cylinder.

[0011] As a further improvement of the present design, the pressure plate assembly includes a pressure plate fixing plate connected to the avoidance moving assembly and a pressure plate body elastically connected to the bottom of the pressure plate fixing plate.

[0012] The beneficial effects of the utility model are as follows: the utility model positions the outer frame through the outer frame positioning block in the positioning assembly, positions the metal middle plate through the inner positioning block, prevents the longer sides of the outer frame from deforming through the outer shaping block, facilitates precise contact with the metal middle plate, and the pressure plate assembly facilitates the position maintenance of the metal middle plate and the outer frame after assembly, and the avoidance moving assembly facilitates the avoidance of the pressure plate assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a top view schematic diagram of the utility model.

[0016] Figure 3 It is an overall cross-sectional schematic diagram of the utility model.

[0017] Figure 4 It is a working schematic diagram of the utility model.

[0018] In the figure, 1. base, 2. pressing assembly, 20. avoidance moving assembly, 200. translation assembly, 201. lifting cylinder, 21. pressing plate assembly, 210. avoidance hole, 211. pressing plate fixing plate, 212. pressing plate body, 3. positioning assembly, 30. external shaping cylinder, 31. external frame positioning block, 32. positioning core, 33. external shaping block, 330. connecting seat, 331. clamping strip, 34. internal shaping claw, 35. internal positioning block, 36. internal shaping cylinder, 4. external frame, 5. middle plate. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, wherein the illustrative embodiments and descriptions are only used to explain the present invention but are not intended to limit the present invention.

[0020] Embodiment: A middle plate welding fixture comprises a base 1, a pressing component 2 arranged on the base 1, and a positioning component 3 arranged on the base 1, the pressing component 2 comprises an avoidance moving component 20, a pressure plate component 21 arranged on the avoidance moving component 20, the pressure plate component 21 is provided with an avoidance hole 210 for avoiding welding points, the positioning component 3 comprises a positioning mold core 32, an outer frame positioning block 31 arranged at the corner of the positioning mold core 32, and an inner positioning block 35 arranged at the top of the positioning mold core 32, the outer frame positioning block 31 is fitted to the outer corner of the outer frame body 4, the outer periphery of the inner positioning block 35 is fitted to the hollow hole wall of the middle plate 5, the avoidance moving component 20 has translation and lifting functions, the positioning component 3 is also provided with an outer shaping block 33, the outer shaping block 33 is connected to the outer shaping cylinder 30 on the base 1, and the outer shaping block 33 is pressed against the outer side of the outer frame body 4 during welding.

[0021] The outer frame 4 is positioned by the outer frame positioning block 31 in the positioning assembly 3, the metal middle plate 5 is positioned by the inner positioning block 35, and the outer shaping block 33 is used to prevent the longer side of the outer frame 4 from deformation, so as to facilitate precise contact with the metal middle plate 5. The pressure plate assembly 21 facilitates the position maintenance of the metal middle plate 5 and the outer frame 4 after assembly, and the avoidance moving assembly 20 facilitates the avoidance of the pressure plate assembly 21.

[0022] See also Figure 1 The longer side of the outer frame 4 is usually easier to deform, which leads to contact misalignment between the outer frame 4 and the middle plate 5. Therefore, in this embodiment, the outer shaping block 33 is pressed against the outer side of the longer side of the outer frame 4 during welding.

[0023] See also Figure 3 In order to prevent the outer frame 4 from being concave in this embodiment, the positioning assembly 3 is also provided with an inner shaping claw 34, and the inner shaping claw 34 is connected to the inner shaping cylinder 36 on the base 1. The inner shaping claw 34 presses the inner side of the outer frame 4 during welding and is arranged opposite to the outer shaping block 33.

[0024] See also Figure 3 Usually, the middle part of the longer side of the outer frame 4 is more concave. To facilitate the concave shaping of the outer frame 4, the inner shaping claw 34 presses the inner middle part of the outer frame 4 during welding.

[0025] See also Figure 2In order to facilitate the buffering during compression and better shaping of the outer frame 4, the outer shaping block 33 includes a connecting seat 330 connected to the outer shaping cylinder 30, and a clamping strip 331 arranged on the connecting seat 330. The side of the clamping strip 331 that is in contact with the outer frame 4 is a contoured surface, and the clamping strip 331 is detachably connected to the connecting seat 330.

[0026] See also Figure 1 In order to improve the execution efficiency of the avoidance moving component 20, the avoidance moving component 20 includes a horizontally arranged translation component 200 and a vertically arranged lifting cylinder 201, and the lifting cylinder 201 is connected to the pressure plate component 21.

[0027] See also Figure 1 In order to reduce the volume of the translation assembly 200, the translation assembly 200 is two parallel rodless cylinders. In order to improve the stability of the avoidance movement assembly 20, the rodless cylinders are respectively located on both sides of the positioning assembly 3, and each of the rodless cylinders is connected to a lifting cylinder 201.

[0028] See also Figure 3 In order to facilitate the pressure plate assembly 21 to better press the outer frame 4 and the middle plate 5, the pressure plate assembly 21 includes a pressure plate fixing plate 211 connected to the avoidance moving assembly 20 and a pressure plate body 212 elastically connected to the bottom of the pressure plate fixing plate 211.

[0029] How it works: See Figure 4 Before welding, the outer frame 4 is placed in the positioning assembly 3, and the outer side of the corner of the outer frame 4 is fitted with the outer frame positioning block 31. The middle plate 5 is placed in the positioning assembly 3 and the middle plate 5 is matched with the inner positioning block 35. The inner shaping claws 34 and the outer shaping blocks 33 respectively press the two sides of the outer frame 4 to shape the outer frame 4. The pressing plate assembly 21 is pressed on the shaped outer frame 4 and the middle plate 5. The laser equipment welds the outer frame 4 and the middle plate 5 through the avoidance hole 210.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mid-plate welding jig, characterized in that: It includes a base, a pressing assembly arranged on the base, and a positioning assembly arranged on the base, the pressing assembly includes an avoidance moving assembly, a pressure plate assembly arranged on the avoidance moving assembly, the pressure plate assembly is provided with avoidance holes for avoiding welding points, the positioning assembly includes a positioning mold core, an outer frame positioning block arranged at the corner of the positioning mold core, and an inner positioning block arranged at the top of the positioning mold core, the outer frame positioning block is fitted to the outer corner of the outer frame body, the outer periphery of the inner positioning block is fitted to the hollow hole wall of the middle plate, the avoidance moving assembly has translation and lifting functions, the positioning assembly is also provided with an outer shaping block, the outer shaping block is connected to the outer shaping cylinder on the base, and the outer shaping block is pressed against the outer side of the outer frame body during welding.

2. A middle plate welding jig according to claim 1, characterized in that: The outer shaping block is pressed tightly against the outer side of the longer side of the outer frame during welding.

3. A middle plate welding jig according to claim 1, characterized in that: The positioning assembly is also provided with an inner shaping claw, which is connected to the inner shaping cylinder on the base. The inner shaping claw presses the inner side of the outer frame during welding and is arranged opposite to the outer shaping block.

4. A middle plate welding jig according to claim 3, characterized in that: The inner shaping claws press the inner middle part of the outer frame during welding.

5. A middle plate welding jig according to any one of claims 1 to 4, characterized in that: The outer shaping block comprises a connection seat connected to the outer shaping cylinder and a clamping strip arranged on the connection seat. The side of the clamping strip that is in contact with the outer frame is a contoured surface. The clamping strip is detachably connected to the connection seat.

6. A middle plate welding jig according to claim 1, characterized in that: The avoidance moving assembly includes a horizontally arranged translation assembly and a vertically arranged lifting cylinder, and the lifting cylinder is connected to the pressure plate assembly.

7. A middle plate welding jig according to claim 6, characterized in that: The translation assembly is two rodless cylinders arranged in parallel, the rodless cylinders are respectively located on both sides of the positioning assembly, and each of the rodless cylinders is connected to a lifting cylinder.

8. The middle plate welding jig according to claim 1 is characterized in that: The pressure plate assembly includes a pressure plate fixing plate connected to the avoidance movement assembly and a pressure plate body elastically connected to the bottom of the pressure plate fixing plate.

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