CN219093904U

CN219093904U - Be used for PCB board and contact pin joint welded auxiliary fixtures subassembly, welding equipment

Info

Publication number: CN219093904U
Application number: CN202222930329.0U
Authority: CN
Inventors: 张斌
Original assignee: Shenzhen Mobi Network Communication Co ltd; Mobi Antenna Technologies Shenzhen Co Ltd; Mobi Technology Xian Co Ltd; Mobi Technology Shenzhen Co Ltd; Xian Mobi Antenna Technology Engineering Co Ltd; Mobi Telecommunications Technologies Jian Co Ltd
Current assignee: Shenzhen Mobi Network Communication Co ltd; Mobi Antenna Technologies Shenzhen Co Ltd; Mobi Technology Xian Co Ltd; Mobi Technology Shenzhen Co Ltd; Xian Mobi Antenna Technology Engineering Co Ltd; Mobi Telecommunications Technologies Jian Co Ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-05-30
Anticipated expiration: 2032-11-03

Abstract

The utility model discloses an auxiliary tool assembly and welding equipment for welding a PCB and a contact pin joint. The auxiliary tool assembly comprises a tool base, a first elastic mechanism and a second elastic mechanism, wherein the first elastic mechanism and the second elastic mechanism are detachably installed on the tool base, the first elastic mechanism is used for elastically abutting against a PCB to be welded and applying force towards the tool base to the PCB, the second elastic mechanism is used for elastically abutting against a pin joint to be welded and applying force away from the tool base to the pin joint, so that the pin joint and the PCB are elastically abutted against the PCB and the pin joint respectively from two opposite directions, so that the PCB is tightly contacted with the pin joint, and stability and welding consistency of a welding process are ensured.

Description

Be used for PCB board and contact pin joint welded auxiliary fixtures subassembly, welding equipment

Technical Field

The utility model belongs to the technical field of PCB welding, and particularly relates to an auxiliary tool assembly and welding equipment for welding a PCB and a pin joint.

Background

In the prior art, when the PCB and the contact pin joint are subjected to tin brushing welding, the bottom of the joint cannot be completely attached to the PCB bonding pad after welding due to the fact that the PCB and the contact pin joint have high tolerance and relative positioning is not achieved between the PCB and the contact pin joint, and the welding consistency is poor, so that poor electrical performance can occur in the using process of the whole machine.

Disclosure of Invention

The utility model solves the technical problems that: how the PCB and the contact pin joint are fully contacted in the welding process so as to ensure that the PCB and the contact pin joint are stably welded.

The application discloses be used for PCB board and contact pin joint welded auxiliary fixtures subassembly, auxiliary fixtures subassembly includes frock base, first elastic mechanism and second elastic mechanism, first elastic mechanism with second elastic mechanism all detachably install in on the frock base, first elastic mechanism is used for elasticity butt to wait welded PCB board and right the PCB board exerts the orientation frock base's power, second elastic mechanism is used for elasticity butt to wait welded contact pin joint and right contact pin joint exerts the power that deviates from frock base, so that contact pin joint with PCB board butt.

Preferably, the number of the first elastic mechanisms is a plurality, and the plurality of the first elastic mechanisms are distributed at intervals on the periphery of the second elastic mechanism.

Preferably, the number of the second elastic mechanisms is a plurality, and the plurality of the second elastic mechanisms are distributed at intervals.

Preferably, the tool base is provided with a protrusion at a position located at the periphery of the second elastic mechanism, the protrusion is provided with a plurality of first mounting holes, and the plurality of first elastic mechanisms are detachably mounted in the plurality of first mounting holes in one-to-one correspondence.

Preferably, the first elastic mechanism comprises a first positioning column, a first spring piece and a pressing block, a part of the pressing block is movably arranged in the first mounting hole in a penetrating mode, one end of the first positioning column is provided with a first limiting portion, the other end of the first positioning column movably penetrates through the pressing block and is fixed with the bottom of the first mounting hole, the first spring piece is movably sleeved on the first positioning column, two ends of the first spring piece are respectively elastically abutted to the pressing block and the first limiting portion, and a part of the pressing block, which is located outside the first mounting hole, is used for being elastically abutted to the PCB and exerting force towards the tool base on the PCB.

Preferably, a through hole is formed in a portion of the pressing block, which is movably arranged in the first mounting hole, the first positioning column is movably arranged in the through hole in a penetrating manner, and the first spring member is accommodated in the through hole.

Preferably, the second elastic mechanism comprises a second positioning column, a second spring member and a blocking member, the tooling base is provided with a second mounting hole, the second positioning column movably penetrates through the second mounting hole, a first end of the second positioning column is provided with a second limiting part, the blocking member is connected to a second end, opposite to the first end, of the second positioning column, and the second limiting part and the blocking member are respectively positioned at two sides of the second mounting hole; the second spring piece movably cup joints in the second reference column just the both ends elasticity butt of second spring piece the second spacing portion with the frock base, the first end of second reference column is used for elasticity butt contact pin joint and right the contact pin joint applys and deviates from the force of frock base.

Preferably, the fixture base is provided with a guide sleeve at the periphery of the second mounting hole, the second positioning column movably penetrates through the guide sleeve, and the second spring piece is accommodated in the guide sleeve.

Preferably, the auxiliary tool assembly further comprises a positioning pin, one end of the positioning pin is fixed on the tool base, and the other end of the positioning pin is used for being movably connected with the PCB.

The application also discloses welding equipment, welding equipment includes above-mentioned arbitrary auxiliary fixtures subassembly.

The utility model discloses an auxiliary tool assembly and welding equipment for welding a PCB and a contact pin joint, which have the following technical effects:

utilize first elastic mechanism and second elastic mechanism on the frock base from two opposite directions elasticity butt PCB board and contact pin joint respectively for PCB board and contact pin joint in close contact, guarantee welding process's stability and welding uniformity.

Drawings

Fig. 1 is a schematic view of a use state of an auxiliary tool assembly for welding a PCB board and a pin joint according to a first embodiment of the present utility model;

fig. 2 is a schematic exploded view of an auxiliary tool assembly for welding a PCB board and a pin joint according to an embodiment of the present utility model;

fig. 3 is another exploded view of an auxiliary tool assembly for welding a PCB board and a pin joint according to the first embodiment of the present utility model;

fig. 4 is an exploded view of a first elastic mechanism according to a first embodiment of the present utility model.

Wherein, the correspondence between the reference numerals and the component names is:

10-a tooling base, 11-a bulge, 12-a first mounting hole, 13-a second mounting hole and 14-a guide sleeve;

20-first elastic mechanisms, 21-first positioning columns, 211-first limiting parts, 22-first spring pieces, 23-pressing blocks, 231-vertical parts, 232-through holes and 233-horizontal parts;

30-second elastic mechanisms, 31-second positioning columns, 311-second limiting parts, 32-second spring pieces and 33-blocking pieces;

40-locating pins, 100-PCB boards and 200-pin connectors.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Before describing in detail the various embodiments of the present solution, the technical concept of the present solution is first briefly described: in the prior art, when the PCB and the pin connector are subjected to tin brushing welding, the bottom of the pin connector cannot be completely attached to the PCB bonding pad, so that the welding consistency is poor, and the situation of poor conductive performance is easy to occur. For this reason, this application provides an auxiliary fixtures subassembly for PCB board and contact pin connect welded, utilizes first elastic mechanism and second elastic mechanism on the frock base to follow two opposite directions elasticity butt PCB board and contact pin respectively and connects for PCB board and contact pin connect in close contact, guarantees welding process's stability and welding uniformity.

Specifically, as shown in fig. 1, 2 and 3, the auxiliary tool assembly for welding a PCB board and a pin connector in the first embodiment includes a tool base 10, a first elastic mechanism 20 and a second elastic mechanism 30, where the first elastic mechanism 20 and the second elastic mechanism 30 are detachably mounted on the tool base 10, the first elastic mechanism 20 is used for elastically abutting against the PCB board 100 to be welded and applying a force towards the tool base 10 to the PCB board 100, and the second elastic mechanism 30 is used for elastically abutting against the pin connector 200 to be welded and applying a force away from the tool base 10 to the pin connector, so that the pin connector 200 abuts against the PCB board 100.

The number of the first elastic mechanisms 20 and the second elastic mechanisms 30 is plural, the first elastic mechanisms 20 are distributed on the periphery of the second elastic mechanisms 30 at intervals, and the second elastic mechanisms 30 are distributed at intervals, so that the stress of the PCB 100 is more uniform and the PCB 100 contacts the pin connector 200 more tightly by arranging the first elastic mechanisms 20 and the second elastic mechanisms 30 at intervals. It should be noted that the number of the second elastic mechanisms 30 is determined according to the number of the pin connectors 200 to be welded. Illustratively, the number of first elastic mechanisms 20 and second elastic mechanisms 30 is three as shown in the figures.

Further, the fixture base 10 is provided with a protrusion 11 at a position located at the periphery of the second elastic mechanism 30, the protrusion 11 is provided with a plurality of first mounting holes 12, and the plurality of first elastic mechanisms 20 are detachably mounted in the plurality of first mounting holes 12 in one-to-one correspondence.

Illustratively, the first elastic mechanism 20 includes a first positioning column 21, a first spring member 22 and a pressing block 23, a portion of the pressing block 23 is movably sleeved in the first mounting hole 12, one end of the first positioning column 21 has a first limiting portion 211, the other end of the first positioning column 21 movably passes through the pressing block 23 and is fixed with the bottom of the first mounting hole 12, the first spring member 22 is movably sleeved on the first positioning column 21, two ends of the first spring member 22 respectively elastically abut against the pressing block 23 and the first limiting portion 211, and a portion of the pressing block 23 located outside the first mounting hole 12 is used for elastically abutting against the PCB 100 and applying a force towards the tool base 10 to the PCB 100.

Illustratively, as shown in fig. 4, the pressing block 23 is in an inverted L shape as a whole, the vertical portion 231 of the pressing block 23 is movably inserted into the first mounting hole 12, the vertical portion 231 has a through hole 232, the first positioning column 21 is movably inserted into the through hole 232, the first spring member 22 is accommodated in the through hole 232, and by providing the through hole 232, the pressing block 23 and the first spring member 22 can be ensured to maintain stability when the pressing block 23 slides vertically. The horizontal portion 233 of the pressing block 23 extends out of the first mounting hole 12, and the pressing block 23 has a downward pressing trend under the elastic force of the first spring member 22, so that the horizontal portion 233 can elastically abut against the PCB 100 and apply a force to the PCB 100 toward the tool base 10.

Further, the tooling base 10 is provided with a second mounting hole 13, and the second elastic mechanism 30 is detachably mounted in the second mounting hole 13.

Specifically, the second elastic mechanism 30 includes a second positioning column 31, a second spring member 32 and a blocking member 33, where the second positioning column 31 movably passes through the second mounting hole 13, a first end of the second positioning column 31 has a second limiting portion 311, the blocking member 33 is connected to a second end of the second positioning column 31 opposite to the first end, and the second limiting portion 311 and the blocking member 33 are respectively located at two sides of the second mounting hole 13, and by setting the second limiting portion 311 and the blocking member 33, the second positioning column 31 can be prevented from falling off from the second mounting hole 13 in the moving process. Wherein the blocking member 33 may be a nut. The second spring member 32 is movably sleeved on the second positioning column 31, and two ends of the second spring member 32 elastically abut against the second limiting portion 311 and the tool base 10. Under the elastic force of the second spring member 32, the second positioning column 31 has an ascending trend, so that the first end of the second positioning column 31 can be used to elastically abut against the pin connector 200 and apply a force to the pin connector 200 away from the tooling base 10, so that the pin connector 200 is tightly attached to the PCB board 100.

Further, the fixture base 10 is provided with a guide sleeve 14 at the periphery of the second mounting hole 13, the second positioning column 31 is movably arranged through the guide sleeve 14, and the second spring member 32 is accommodated in the guide sleeve 14. By providing the guide sleeve 14, it is ensured that the second positioning column 31 and the second spring member 32 remain stable when the second positioning column 31 slides up and down. Further, the guide sleeve 14 may be further used to accommodate the pin connector 200, i.e. a portion of the pin connector 200 is accommodated in the guide sleeve 14 and abuts against the second positioning post 31, and the portion to be welded of the pin connector 200 is located outside the guide sleeve 14, which may perform a predetermined positioning function on the pin connector 200, and may maintain stability of the pin connector 200 during welding.

Further, the auxiliary tool assembly further comprises a positioning pin 40, one end of the positioning pin 40 is fixed on the tool base 10, and the other end of the positioning pin 40 is used for movably connecting the PCB 100. The number of the positioning pins 40 can be multiple, and the positioning pins 40 can be arranged to pre-position the PCB 100, so that the stability of the PCB 100 in the welding process is further enhanced.

The use mode of the auxiliary tool assembly for welding the PCB and the contact pin joint is as follows: the pin joint 200 to be welded is placed in the corresponding guide sleeve 14 and the second positioning column 31 is abutted, the part to be welded of the pin joint 200 stretches out of the guide sleeve 14, the printed PCB is placed on the tool base 10 and connected with the corresponding positioning pin 40, the pre-positioning is achieved, the PCB 100 is pressed tightly from the edge by the pressing block 23 of the first elastic mechanism 20, the PCB 100 is fully contacted with the pin joint 200, furnace welding is carried out finally, and the PCB 100 is taken down after the welding is completed.

The second embodiment also discloses a welding device, which comprises the auxiliary tool assembly in the first embodiment.

The first elastic mechanism and the second elastic mechanism on the tool base are utilized to elastically abut against the PCB and the pin connector respectively from two opposite directions, so that the PCB and the pin connector are in close contact, and stability and welding consistency of a welding process are guaranteed.

While certain embodiments have been shown and described, it would be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles and spirit of the utility model, the scope of which is defined in the claims and their equivalents.

Claims

1. Be used for PCB board and contact pin to connect welded auxiliary fixtures subassembly, a serial communication port, auxiliary fixtures subassembly includes frock base, first elastic mechanism and second elastic mechanism, first elastic mechanism with second elastic mechanism all detachably install in on the frock base, first elastic mechanism is used for elasticity butt to wait welded PCB board and right the PCB board exerts the orientation frock base's force, second elastic mechanism is used for elasticity butt to wait welded contact pin to connect and right contact pin connects exerts the force that deviates from frock base, so that contact pin connects with PCB board butt.

2. The auxiliary tool assembly for welding the PCB and the pin joint according to claim 1, wherein the number of the first elastic mechanisms is plural, and the plural first elastic mechanisms are distributed at intervals on the periphery of the second elastic mechanism.

3. The auxiliary tool assembly for welding the PCB and the pin joint according to claim 2, wherein the number of the second elastic mechanisms is a plurality, and the second elastic mechanisms are distributed at intervals.

4. The auxiliary tool assembly for welding the PCB and the pin joint according to claim 2, wherein the tool base is provided with a protrusion at a position located at the periphery of the second elastic mechanism, the protrusion is provided with a plurality of first mounting holes, and the plurality of first elastic mechanisms are detachably mounted in the plurality of first mounting holes in a one-to-one correspondence.

5. The auxiliary tool assembly for welding a PCB and a pin joint of claim 4, wherein the first elastic mechanism comprises a first positioning column, a first spring member and a pressing block, a portion of the pressing block is movably disposed in the first mounting hole in a penetrating manner, one end of the first positioning column is provided with a first limiting portion, the other end of the first positioning column movably passes through the pressing block and is fixed to the bottom of the first mounting hole, the first spring member is movably sleeved on the first positioning column, two ends of the first spring member are respectively elastically abutted against the pressing block and the first limiting portion, and a portion of the pressing block located outside the first mounting hole is used for elastically abutting against the PCB and applying a force towards the tool base to the PCB.

6. The auxiliary tool assembly for welding a PCB and a pin joint according to claim 5, wherein the portion of the pressing block movably penetrating the first mounting hole is provided with a through hole, the first positioning column movably penetrating the through hole, and the first spring member is accommodated in the through hole.

7. The auxiliary tool assembly for welding the PCB and the pin joint according to claim 3, wherein the second elastic mechanism comprises a second positioning column, a second spring member and a blocking member, the tool base is provided with a second mounting hole, the second positioning column movably penetrates through the second mounting hole, a first end of the second positioning column is provided with a second limiting portion, the blocking member is connected to a second end of the second positioning column opposite to the first end, and the second limiting portion and the blocking member are respectively located at two sides of the second mounting hole; the second spring piece movably cup joints in the second reference column just the both ends elasticity butt of second spring piece the second spacing portion with the frock base, the first end of second reference column is used for elasticity butt contact pin joint and right the contact pin joint applys and deviates from the force of frock base.

8. The auxiliary tool assembly for welding a PCB and a pin joint according to claim 7, wherein the tool base is provided with a guide sleeve at the periphery of the second mounting hole, the second positioning post is movably inserted into the guide sleeve, and the second spring member is accommodated in the guide sleeve.

9. The auxiliary tool assembly for welding a PCB board with a pin joint according to claim 1, further comprising a positioning pin, wherein one end of the positioning pin is fixed on the tool base, and the other end of the positioning pin is movably connected with the PCB board.

10. A welding apparatus, characterized in that it comprises an auxiliary tooling assembly according to any one of claims 1 to 9.