End head capable of preventing welding deformation

Abstract

The utility model discloses an anti-welding deformation end, which relates to the technical field of end structures and comprises a metal elastic sheet and a strip-shaped block, a plurality of partition plates are fixedly arranged on the front end face of the strip-shaped block along the length direction of the strip-shaped block at intervals, and each cavity is respectively and correspondingly communicated with a clamping groove. A limiting groove is formed in the side end face of each partition plate. A metal elastic piece is arranged between each clamping groove and the cavity, an arc-shaped part of each metal elastic piece is embedded into the corresponding clamping groove of the strip-shaped block from left to right, the upper end and the lower end of each arc-shaped part abut against the top wall and the bottom wall of the corresponding clamping groove respectively under the elastic restoring force of the corresponding arc-shaped part, and two supporting plates on the bent plate are located in limiting grooves of the partition plates located on the two sides of the bent plate respectively. The top surfaces of the two supporting plates abut against the top walls of the two clamping grooves correspondingly. The beneficial effects of the utility model are that welding deformation is prevented, and the welding quality with the circuit board is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of end structure, in particular to an end head of preventing welding deformation. BACKGROUND

[0002] The structure of the end head assembled by a workshop is shown in the figure Figures 1-4 The end head comprises a metal spring 1 and a plastic block 2, a plurality of clamping grooves 3 are formed on the side end face of the plastic block 2 along the length direction, the metal spring 1 comprises a bottom plate 4, an arc-shaped part 5 fixed to one end of the bottom plate 4, a bending plate 6 fixed to the other end of the arc-shaped part 5, a support plate 7 fixed to the both sides of the end of the bending plate 6, and the bottom plate 4, the arc-shaped part 5, the bending plate 6 and the support plate 7 are integrally formed, wherein the arc-shaped part 5 of the metal spring 1 is embedded in the clamping groove 3 of the plastic block 2 from left to right; the end head is mainly assembled on a circuit board.

[0003] The method of assembling the end head to the circuit board by the worker is as follows: taking out an end head, supporting the bottom plate 4 of the metal spring 1 of the end head at a specified position of the circuit board; then welding the bottom plate 4 through the welding head of the welding machine, and welding the bottom plate 4 at the specified position of the circuit board, so as to finally realize the assembly of the end head on the circuit board.

[0004] However, although the end head can be assembled on the circuit board, the following problems may occur during the welding process:

[0005] When the welding head of the welding machine welds the bottom plate 4 of the metal spring of the end head, heat is generated on the bottom plate 4, and the bottom plate 4 transmits the heat to the arc-shaped part 5 and the bending plate 6, and the bending plate 6 deforms upward after being heated, and then generates an upward displacement [while the process requires that the bending plate 6 of the end head does not generate displacement after the bottom plate 4 of the end head is welded with the circuit board], so as to reduce the welding quality with the circuit board.

[0006] Therefore, there is an urgent need for an end head that can prevent welding deformation and greatly improve the welding quality with the circuit board. UTILITY MODEL CONTENTS

[0007] The utility model aims at overcoming the defects of the prior art, and provides an end head of preventing welding deformation, which can prevent welding deformation and greatly improve the welding quality with the circuit board.

[0008] The utility model discloses a purpose is realized through following technical scheme: a kind of end head of anti-welding deformation, it includes metal spring and strip block, the rear end surface of strip block is opened with multiple clamping slots along the length direction of strip block at intervals, every clamping slot is all through the front end surface of strip block, the front end surface of strip block is solidly connected with multiple partitions along the length direction of strip block at intervals, cavity is formed between every two adjacent partitions, every cavity is connected with clamping slot respectively, the side end surface of every partition is all opened with limiting slot, limiting slot is through the front end surface of partition forwardly;

[0009] The metal spring includes a bottom plate, an arc-shaped portion fixed to one end of the bottom plate, and a bent plate fixed to the other end of the arc-shaped portion, and two side plates are fixed to the two sides of the end portion of the bent plate.

[0010] The metal spring is arranged between each clamping slot and the cavity, the arc-shaped portion of the metal spring is embedded in the clamping slot of the strip block from left to right, under the elastic restoring force of the arc-shaped portion, the upper and lower ends of the arc-shaped portion are respectively pressed against the top wall and the bottom wall of the clamping slot, the two side plates on the bent plate are respectively located in the limiting slots of the two side partitions on the two sides of the bent plate, and the top surfaces of the two side plates are respectively abutted against the top walls of the two clamping slots.

[0011] The strip block is a plastic piece, and the distance between every two adjacent clamping slots in the strip block is equal.

[0012] The bottom plate, the arc-shaped portion, the bent plate and the side plates are integrally formed.

[0013] The partition is a plastic piece, and the partition is integrally formed with the strip block.

[0014] The distance between every two adjacent partitions is equal.

[0015] The two side plates located at the end portion of the bent plate are symmetrically arranged about the bent plate.

[0016] The utility model has the following advantages:

[0017] The arc-shaped portion of the metal spring is embedded in the clamping slot of the strip block from left to right, under the elastic restoring force of the arc-shaped portion, the upper and lower ends of the arc-shaped portion are respectively pressed against the top wall and the bottom wall of the clamping slot, the two side plates on the bent plate are respectively located in the limiting slots of the two side partitions on the two sides of the bent plate, and the top surfaces of the two side plates are respectively abutted against the top walls of the two clamping slots; when the welding head of the welding machine is welding the bottom plate of the metal spring, heat is generated on the bottom plate, and the bottom plate transmits the heat to the arc-shaped portion and the bent plate, since the two side plates on the bent plate are respectively located in the limiting slots of the two side partitions on the two sides of the bent plate, and the top surfaces of the two side plates are respectively abutted against the top walls of the two clamping slots, that is, the limiting slots block the upward movement of the side plates, thereby effectively preventing the bent plate from being deformed upward, and further avoiding the displacement of the bent plate upward, so that the welding quality with the circuit board is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of an existing end head;

[0019] Figure 2 is a structural schematic view of a metal spring in Figure 1 ;

[0020] Figure 3 is a structural schematic view of a plastic block in Figure 1 ;

[0021] Figure 4 is a side sectional schematic view of Figure 3 ;

[0022] Figure 5 is a structural schematic view of the present utility model;

[0023] Figure 6 is a front view of Figure 5 ;

[0024] Figure 7 is a side sectional schematic view of Figure 5 ;

[0025] Figure 8 is a structural schematic view of a strip block in Figure 5 ;

[0026] Figure 9 is an A-direction schematic view of Figure 8 ;

[0027] In the drawings:

[0028] 1-metal spring, 2-plastic block, 3-clamping slot, 4-bottom plate, 5-arc-shaped part, 6-bent plate, 7-branch plate, 8-strip block, 9-separation plate, 10-limiting slot. DETAILED DESCRIPTION

[0029] The present utility model will be further described below in conjunction with the drawings, and the protection scope of the present utility model is not limited to the following:

[0030] As shown in Figures 5-9 , an end head preventing welding deformation comprises a metal spring 1 and a strip block 8, a plurality of clamping slots 3 are formed on the rear end face of the strip block 8 and are spaced apart along the length direction of the strip block 8, each clamping slot 3 penetrates the front end face of the strip block 8, a plurality of separation plates 9 are fixed on the front end face of the strip block 8 and are spaced apart along the length direction of the strip block 8, the spacing between each two adjacent separation plates 9 is equal, a cavity is enclosed between each two adjacent separation plates 9, each cavity is connected with a clamping slot 3 in correspondence, a limiting slot 10 is formed on the side end face of each separation plate 9 and penetrates the front end face of the separation plate 9.

[0031] The metal spring 1 comprises a bottom plate 4, an arc-shaped part 5 fixed to one end of the bottom plate 4, a bent plate 6 fixed to the other end of the arc-shaped part 5, and a support plate 7 fixed to both sides of the end part of the bent plate 6; the bottom plate 4, the arc-shaped part 5, the bent plate 6 and the support plate 7 are integrally formed; and the two support plates 7 at the end part of the bent plate 6 are symmetrically arranged about the bent plate 6.

[0032] Each card slot 3 is provided with a metal spring 1, the arc-shaped part 5 of the metal spring 1 is embedded in the card slot 3 of the strip-shaped block 8 from left to right, under the elastic restoring force of the arc-shaped part 5, the upper and lower ends of the arc-shaped part 5 are respectively pressed against the top wall and the bottom wall of the card slot 3, and the two support plates 7 on the bent plate 6 are respectively located in the limiting grooves 10 of the two side partitions 9, and the top surfaces of the two support plates 7 are respectively abutted against the top walls of the two card slots 3.

[0033] The strip-shaped block 8 is a plastic part, and the distance between every two adjacent card slots 3 in the strip-shaped block 8 is equal. The side partition 9 is a plastic part, and the side partition 9 is integrally formed with the strip-shaped block 8.

[0034] The method for workers to assemble the end head to the circuit board is as follows:

[0035] S1, taking out an end head, and supporting the bottom surfaces of the bottom plates 4 of the metal springs 1 of the end head at the specified positions of the circuit board;

[0036] S2, welding the bottom plates 4 of the metal springs 1 by the welding head of the welding machine to fix the bottom plates 4 at the specified positions of the circuit board, so as to fix the metal springs 1 on the circuit board, and finally realize the assembly of the end head to the circuit board.

[0037] S3, repeating the steps S1-S2 multiple times, so as to assemble multiple end heads to the circuit board.

[0038] In the step S2, when the welding head of the welding machine welds the bottom plate 4 of the metal spring 1, heat is generated on the bottom plate 4, and the bottom plate 4 transmits the heat to the arc-shaped part 5 and the bent plate 6. Since the two support plates 7 on the bent plate 6 are respectively located in the limiting grooves 10 of the two side partitions 9, and the top surfaces of the two support plates 7 are respectively abutted against the top walls of the two card slots 3, that is, the limiting grooves 10 block the upward movement of the support plates 7, so as to effectively prevent the deformation of the bent plate 6 upward, and avoid the displacement of the bent plate 6 upward, compared with the end head shown in Figures 1-4

[0039] ​Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A tip for preventing welding distortion, characterized by: It includes metal elastic sheet (1) and strip block (8), the rear end surface of strip block (8) is provided with a plurality of clamping slots (3) along the length direction of strip block (8) at intervals, each clamping slot (3) is through the front end surface of strip block (8), the front end surface of strip block (8) is provided with a plurality of partitions (9) along the length direction of strip block (8) at intervals, the cavity is enclosed between each adjacent two partitions (9), each cavity is respectively connected with clamping slot (3), the side end surface of each partition (9) is provided with limiting slot (10), limiting slot (10) is through the front end surface of partition (9) to the front; The metal elastic sheet (1) includes a bottom plate (4), an arc-shaped portion (5) fixed to one end of the bottom plate (4), a bending plate (6) fixed to the other end of the arc-shaped portion (5), and a support plate (7) fixed to both sides of the end portion of the bending plate (6). Each clamping slot (3) and the cavity are provided with a metal elastic sheet (1), the arc-shaped portion (5) of the metal elastic sheet (1) is embedded in the clamping slot (3) of the strip block (8) from left to right, under the elastic restoring force of the arc-shaped portion (5), the upper and lower ends of the arc-shaped portion (5) are respectively pressed on the top wall and the bottom wall of the clamping slot (3), the two support plates (7) on the bending plate (6) are respectively located in the limiting slots (10) of the two partition plates (9) on both sides thereof, and the top surfaces of the two support plates (7) are respectively abutted on the top walls of the two clamping slots (3).

2. A tip to prevent welding distortion according to claim 1, characterized in that: The strip block (8) is a plastic part, and the distance between every two adjacent clamping slots (3) in the strip block (8) is equal.

3. A tip to prevent welding distortion according to claim 2, wherein: The bottom plate (4), the arc-shaped portion (5), the bending plate (6) and the support plate (7) are integrally formed.

4. A tip to prevent welding distortion according to claim 3, wherein: The partition plate (9) is a plastic part, and the partition plate (9) is integrally formed with the strip block (8).

5. A tip to prevent welding distortion according to claim 4, wherein: The distance between every two adjacent partition plates (9) is equal.

6. A tip to prevent welding distortion according to claim 5, wherein: The two support plates (7) located at the end portion of the bending plate (6) are symmetrically arranged about the bending plate (6).

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