Synchronous wire plugging device for multiple wire harnesses in circuit board tin soldering process

Abstract

The utility model discloses a multi-wire harness synchronous wire plugging device for a circuit board tin soldering process, which comprises a horizontal wire block, a first wire clamping block, a second wire clamping block and a pre-tightening device, the horizontal wire block is arranged between the first wire clamping block and the second wire clamping block, and a plurality of horizontal wire grooves are arranged on one side surface, close to the first wire clamping block and the second wire clamping block, of the horizontal wire block; the elastic pre-tightening device enables the first wire clamping block and the second wire clamping block to clamp and press the two side faces, provided with the horizontal wire grooves, of the horizontal wire block respectively, wrapping sections of the wire harnesses lying in the horizontal wire grooves in the length direction are clamped and pressed by the first wire clamping block or the second wire clamping block, the wire harness threading efficiency is improved, and the problems of wire displacement and disengagement before welding are solved.

Description

Technical Field

[0001] The utility model belongs to the field of welding of wire harnesses and circuit boards. Background Art

[0002] The process of welding the wire harness to the circuit board generally involves first inserting the exposed wire core section at the end of the wire harness into the wire hole of the circuit board, and then soldering the exposed wire core section inserted into the wire hole to the metal pad on the front of the welding circuit board through a soldering device; in practice, it is often necessary to weld multiple wire harnesses, and the general practice is to insert a wire, solder a wire, and so on, and this process requires frequent switching of working states;

[0003] A more efficient way is to first insert all the exposed sections of the wire core of the wire harness into the corresponding threading holes on the circuit board one by one, and then use a welding device to weld them one by one. This more efficient welding method has the following problems: since the threading holes on the circuit board are very small, the insertion process is inefficient and easy to make mistakes. Even if they are inserted, there may still be problems with wire running and detachment before welding. Summary of the invention

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a synchronous wiring device for multiple wire harnesses in a circuit board soldering process, thereby improving the efficiency of wire harness threading and avoiding wire running and detachment problems before welding.

[0005] Technical solution: To achieve the above-mentioned purpose, the utility model provides a synchronous plug-in device for multiple wire harnesses in a circuit board soldering process, comprising a wire lying block, a first wire clamping block, a second wire clamping block and a pre-tensioning device. The wire lying block is between the first wire clamping block and the second wire clamping block, and a plurality of wire lying grooves are provided on one side of the wire lying block close to the first wire clamping block and the second wire clamping block; the elastic pre-tensioning device enables the first wire clamping block and the second wire clamping block to respectively clamp the two sides of the wire lying block with the wire lying grooves, and enables the sheath sections of each wire harness lying in each wire lying groove along the length direction to be clamped by the first wire clamping block or the second wire clamping block.

[0006] Furthermore, the pre-tightening device comprises a first elastic pulling unit and a second elastic pulling unit symmetrically installed at two ends of the second clamping block, and the first elastic pulling unit and the second elastic pulling unit respectively apply elastic pulling force to two ends of the first clamping block.

[0007] Furthermore, both ends of the second wire clamping block are provided with hinge grooves, both ends of the horizontal wire block are provided with limit grooves, and both ends of the first wire clamping block are provided with bayonet grooves.

[0008] Furthermore, the first elastic pulling unit includes a pull rod, one end of which is fixedly connected to a spring baffle, and the other end of which is connected to a rotating head, the axis of the rotating head is perpendicular to the pull rod, and the rotating head is hinged in a hinge groove;

[0009] The movable sleeve on the pull rod is provided with a collar, and the outer sleeve of the pull rod is provided with a spring, which is clamped between the spring stopper and the collar. Further, the two ends of the rotating head are hinged to the hinge holes on the wall of the hinge groove through the coaxial hinge shaft. Further, the outer diameter of the collar is larger than the bayonet groove width.

[0010] Furthermore, in the clamping state, the pull rod is perpendicular to the length direction of the horizontal wire block and is stuck in the limit groove and the bayonet groove. At the same time, the ring presses the side of the first clamping block away from the horizontal wire block under the elastic tension of the spring in the compressed state, thereby causing the pull rod to generate tension.

[0011] Furthermore, the end face of the horizontal line block is provided with a limit hole.

[0012] Beneficial effect: Before welding, all the wiring harnesses of the utility model are uniformly and pre-fixed one by one on the overall structure formed by the holding horizontal wire block, the first wire clamping block and the second wire clamping block; then, the exposed end wire core sections of several wiring harnesses protruding from one end of the overall structure formed by the horizontal wire block, the first wire clamping block and the second wire clamping block are inserted one by one into several threading holes from the back of the circuit board to be welded, and each end wire core exposed section finally passes through each threading hole to the front of the circuit board to be welded, thereby improving the threading efficiency of the wiring harness and avoiding the problems of wire running and detachment before welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 This is the overall disassembly diagram of this solution;

[0014] Attached Figure 2 It is a schematic diagram of the horizontal wire block, the first wire clamping block and the second wire clamping block being assembled together;

[0015] Attached Figure 3 Schematic diagram of the front and back of the jack. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] As attached Figures 1 to 3 The circuit board tin soldering process of the circuit board shown in the figure has a plurality of wire harness synchronous plugging device, and the circuit board 9 to be soldered in this scheme is provided with a plurality of wire threading holes 8, and on the front of the circuit board 9 to be soldered, each wire threading hole 8 is surrounded by a metal soldering pad 7, which is used to solder the wire core exposed section 19 at the end of the wire harness; the back of the circuit board 9 to be soldered can be preset with a positioning pile 21; Figure 1 As shown, the wire harness to be welded includes a sheath section 20 and an end wire core exposed section 19 .

[0018] The specific structure of the auxiliary device of this scheme is as follows:

[0019] It includes a wire-laying block 6, a first wire-clamping block 3, a second wire-clamping block 10 and a pre-tightening device. The end face of the wire-laying block 6 is provided with a limiting hole 5, which cooperates with the positioning pile 21 on the back of the circuit board 9 to be welded. The wire-laying block 6 is between the first wire-clamping block 3 and the second wire-clamping block 10. The wire-laying block 6 is provided with a plurality of wire-laying grooves 4 on one side close to the first wire-clamping block 3 and the second wire-clamping block 10. When the positioning pile 21 on the back of the welding circuit board 9 is inserted into the limiting hole 5 on the end face of the wire-laying block 6, the plurality of wire-laying grooves 4 are respectively aligned with the plurality of threading holes 8 on the circuit board 9 to be welded. The elastic pre-tightening device causes the first wire-clamping block 3 and the second wire-clamping block 10 to clamp the two sides of the wire-laying block 6 with the wire-laying grooves 4 respectively, and causes the sheath sections 20 of each wiring harness lying in each wire-laying groove 4 along the length direction to be clamped by the first wire-clamping block 3 or the second wire-clamping block 10.

[0020] The pre-tightening device comprises a first elastic pulling unit 1.1 and a second elastic pulling unit 1.2 symmetrically mounted at two ends of the second clamping block 10 , and the first elastic pulling unit 1.1 and the second elastic pulling unit 1.2 apply elastic pulling forces to two ends of the first clamping block 3 respectively.

[0021] Both ends of the second wire clamping block 10 are provided with hinge grooves 11, both ends of the horizontal wire block 6 are provided with limit grooves 18, and both ends of the first wire clamping block 3 are provided with bayonet grooves 2; the first elastic pulling unit 1.1 includes a pull rod 15, one end of the pull rod 15 is fixedly connected to a spring baffle 13, and the other end is connected to a rotating head 16, the axis of the rotating head 16 is perpendicular to the pull rod 15, and the rotating head 16 is hinged in the hinge groove 11; specifically, both ends of the rotating head 16 are hinged to the hinge holes on the groove wall of the hinge groove 11 through a coaxial hinge shaft 17; the movable sleeve on the pull rod 15 is provided with a ring 12, the outer diameter of the ring 12 is larger than the groove width of the bayonet groove 2, and a spring 14 is provided on the outer sleeve of the pull rod 15, and the spring 14 is clamped between the spring baffle 13 and the ring 12.

[0022] In the clamping state, the pull rod 15 is perpendicular to the length direction of the horizontal line block 6 and is inserted into the limit groove 18 and the bayonet groove 2. At the same time, the ring 12 presses the side of the first clamping block 3 away from the horizontal line block 6 under the elastic tension of the spring 14 in the compressed state, thereby causing the pull rod 15 to generate tension.

[0023] How this solution works:

[0024] Preparation process before welding:

[0025] Step 1: In the initial state, Figure 1 As shown, the wire laying block 6, the first clamping block 3 and the second clamping block 10 are in a mutually separated state, at this time, the sheath sections 20 of the wire bundles close to the exposed wire core sections 19 at the end are laid one by one in the corresponding wire laying grooves 4, and the wire laying block 6 is placed between the first clamping block 3 and the second clamping block 10;

[0026] Step 2, pull the two pull rods 15 upward to swing around the axis of their respective rotating heads 16, and at the same time, the adaptive holding ring 12 moves along the pull rod 15, and finally makes the pull rod 15 perpendicular to the length direction of the horizontal wire block 6, and is clamped in the limit groove 18 and the bayonet groove 2. At the same time, the ring 12 presses the first clamping block 3 away from the side of the horizontal wire block 6 under the elastic tension of the compressed spring 14, so that the pull rod 15 generates a pulling force, so that the first clamping block 3 and the second clamping block 10 respectively clamp the two sides of the horizontal wire block 6 with the horizontal wire groove 4, and the foreskin sections 20 of each wire harness lying in each horizontal wire groove 4 along the length direction are clamped by the first clamping block 3 or the second clamping block 10; at this time, the horizontal wire block 6, the first clamping block 3 and the second clamping block 10 become an integral structure, such as Figure 3 In the above figure, one end of the overall structure formed by the horizontal wire block 6, the first clamping wire block 3 and the second clamping wire block 10 protrudes with a plurality of wire end core exposed sections 19 of the wire harnesses, and the plurality of wire end core exposed sections 19 of the wire harnesses correspond one by one to the plurality of threading holes 8 on the circuit board 9 to be welded; at this time, it is equivalent to that all the wire harnesses are uniformly and pre-fixed one by one to the overall structure formed by the horizontal wire holding block 6, the first clamping wire block 3 and the second clamping wire block 10;

[0027] Step three, hold the overall structure composed of the horizontal wire block 6, the first clamping block 3 and the second clamping block 10, so that the positioning pile 21 on the back of the soldering circuit board 9 is inserted into the limiting hole 5 on the end face of the horizontal wire block 6, at this time, the end wire core exposed sections 19 of several wire harnesses protruding from one end of the overall structure composed of the horizontal wire block 6, the first clamping block 3 and the second clamping block 10 are inserted into several threading holes 8 from the back of the to-be-soldered circuit board 9 one by one, and each end wire core exposed section 19 finally passes through each threading hole 8 to the front of the to-be-soldered circuit board 9, as shown in FIG. Figure 3 The following figure;

[0028] Step 4: The soldering device applies molten solder liquid to each metal pad 7 on the front side of the circuit board 9 to be soldered, thereby soldering each metal pad 7 to each end wire core exposed section 19 passing through the threading hole 8 to the front side of the circuit board 9 to be soldered;

[0029] Step 5, dismantle the whole structure composed of the horizontal wire block 6, the first wire clamping block 3 and the second wire clamping block 10.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A synchronous plugging device for multiple wire harnesses in a circuit board soldering process, characterized in that: The invention comprises a wire-laying block (6), a first wire-clamping block (3), a second wire-clamping block (10) and a pre-tensioning device. The wire-laying block (6) is located between the first wire-clamping block (3) and the second wire-clamping block (10). The wire-laying block (6) is provided with a plurality of wire-laying grooves (4) on one side thereof close to the first wire-clamping block (3) and the second wire-clamping block (10). The elastic pre-tensioning device enables the first wire-clamping block (3) and the second wire-clamping block (10) to respectively clamp and press the two side surfaces of the wire-laying block (6) with the wire-laying grooves (4), and enables the sheath sections (20) of each wire harness lying in each of the wire-laying grooves (4) along the length direction to be clamped and pressed by the first wire-clamping block (3) or the second wire-clamping block (10).

2. The multiple wire harness synchronous plugging device for circuit board soldering process according to claim 1, characterized in that: The pre-tightening device comprises a first elastic pulling unit (1.1) and a second elastic pulling unit (1.2) symmetrically mounted at two ends of the second clamping block (10), wherein the first elastic pulling unit (1.1) and the second elastic pulling unit (1.2) respectively apply elastic pulling forces to two ends of the first clamping block (3).

3. The multiple wire harness synchronous plugging device for circuit board soldering process according to claim 2, characterized in that: Both ends of the second wire clamping block (10) are provided with hinge grooves (11), both ends of the wire lying block (6) are provided with limit grooves (18), and both ends of the first wire clamping block (3) are provided with bayonet grooves (2).

4. The multiple wire harness synchronous plugging device for circuit board soldering process according to claim 3 is characterized in that: The first elastic pulling unit (1.1) comprises a pull rod (15), one end of the pull rod (15) is fixedly connected to a spring baffle (13), and the other end is connected to a rotating head (16), the axis of the rotating head (16) is perpendicular to the pull rod (15), and the rotating head (16) is hinged in a hinge groove (11); The movable sleeve on the pull rod (15) is provided with a collar (12), and the outer sleeve of the pull rod (15) is provided with a spring (14), and the spring (14) is clamped between the spring stopper (13) and the collar (12).

5. The multiple wire harness synchronous plugging device for circuit board soldering process according to claim 4, characterized in that: Specifically, the two ends of the rotating head (16) are hingedly connected to the hinge holes on the wall of the hinge groove (11) through a coaxial hinge shaft (17).

6. The multiple wire harness synchronous plugging device for circuit board soldering process according to claim 5, characterized in that: The outer diameter of the collar (12) is greater than the width of the bayonet groove (2).

7. The multiple wire harness synchronous plugging device for circuit board soldering process according to claim 6, characterized in that: In the clamping state, the pull rod (15) is perpendicular to the length direction of the horizontal line block (6) and is inserted into the limit groove (18) and the bayonet groove (2). At the same time, the ring (12) presses the first clamping block (3) away from the side of the horizontal line block (6) under the elastic tension of the spring (14) in the compressed state, thereby causing the pull rod (15) to generate tension.

8. The multiple wire harness synchronous plugging device for circuit board soldering process according to claim 7, characterized in that: The end surface of the horizontal line block (6) is provided with a limiting hole (5).

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