CN216096883U

CN216096883U - PCB welding fixture

Info

Publication number: CN216096883U
Application number: CN202121771807.7U
Authority: CN
Inventors: 方虎
Original assignee: Xinjinxin Tianjin Electronic Technology Co ltd
Current assignee: Xinjinxin Tianjin Electronic Technology Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-03-22
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a PCB (printed circuit board) welding fixture which comprises at least one clamping unit, wherein the clamping unit comprises a first clamping plate and a second clamping plate, the side surface of the first clamping plate is provided with a first protruding part, the side surface of the second clamping plate is provided with a second protruding part, the first protruding part and the second protruding part are connected through a connecting shaft, a torsion spring is sleeved on the connecting shaft, the inner sides of the first clamping plate and the second clamping plate are respectively provided with a buffer sheet through a base plate, the back surface of the clamping unit is fixedly provided with a movable base, the bottom of the movable base is provided with a clamping groove, a supporting square pipe is movably connected inside the clamping groove, the back surface of the supporting square pipe is provided with a plurality of groups of positioning holes at equal intervals, and the back surface of the movable base is provided with butt joint holes with the same diameter as the positioning holes. The PCB welding fixture is scientific and reasonable in structural design, simple to operate and accurate in adjustment, and can be fixed at different point positions according to the surface condition of the PCB, so that the welding stability of the PCB is ensured, and the welding efficiency is improved.

Description

PCB welding fixture

Technical Field

The utility model relates to the technical field of clamp equipment, in particular to a PCB welding clamp.

Background

Pcb (printed circuit board), i.e. printed wiring board, printed circuit board for short, is one of the important parts in the electronics industry. Almost every kind of electronic equipment, as small as electronic watches, calculators, as large as computers, communication electronics, military weaponry systems, has electronic components such as integrated circuits, and printed boards are used to electrically interconnect the various components. The printed circuit board consists of an insulating bottom plate, a connecting lead and a welding disc for assembling and welding electronic elements, and has double functions of a conductive circuit and the insulating bottom plate. The circuit can replace complex wiring to realize electrical connection among elements in the circuit, thereby simplifying the assembly and welding work of electronic products, reducing the wiring workload in the traditional mode and greatly lightening the labor intensity of workers; and the volume of the whole machine is reduced, the product cost is reduced, and the quality and the reliability of the electronic equipment are improved. The printed circuit board has good product consistency, can adopt standardized design, and is beneficial to realizing mechanization and automation in the production process. Meanwhile, the whole printed circuit board subjected to assembly and debugging can be used as an independent spare part, so that the exchange and maintenance of the whole product are facilitated. At present, printed wiring boards have been used very widely in the manufacture of electronic products. The existing PCB welding clamp is large in size, inconvenient to use and low in PCB dismounting efficiency, and the distance between positioning points of a clamping mechanism cannot be adjusted according to conditions, so that PCBs of different sizes cannot be clamped effectively, and the PCB welding clamp has strong limitation. Therefore, we propose a PCB welding fixture.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a PCB welding fixture to solve the above problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a PCB circuit board welding jig, includes at least one centre gripping unit, the centre gripping unit includes that the side sets up the first cardboard of first protruding portion and the second cardboard of side setting second protruding portion, first protruding portion passes through the connecting axle with the second protruding portion, the cover is equipped with torque spring on the connecting axle, first cardboard all is provided with the buffer plate through the base plate with second cardboard inboard, the back of centre gripping unit is fixed with the removal seat that the draw-in groove was seted up to the bottom, the inside swing joint of draw-in groove has support side's pipe, support side's pipe back equidistant the having seted up multiunit locating hole, remove the seat back and set up the butt joint hole that equals with the locating hole diameter.

Preferably, the second protruding part is clamped at the inner side of the first protruding part and is in clearance fit with the first protruding part.

Preferably, the outer end of the connecting shaft is sleeved with a gasket, and a positioning pin arranged on the side face of the connecting shaft is arranged on the outer side of the gasket.

Preferably, two ends of the torsion spring are respectively clamped in the limiting grooves on the side surfaces of the first clamping plate and the second clamping plate.

Preferably, the movable seat is connected with the positioning hole through a screw in the butt joint hole in a screwed mode.

Preferably, when the clamping unit is in a standing state, the first clamping plate is attached to the buffer sheet on the inner side of the second clamping plate.

Compared with the prior art, the utility model has the beneficial effects that: the PCB circuit board welding fixture has simple and reasonable structural design and stronger practicability, can realize the effect of arranging a plurality of groups of PCBs side by installing a corresponding number of clamping units on one side of a supporting square pipe simultaneously according to requirements by arranging a plurality of clamping units which can be combined and used at will, thereby being convenient for large-scale PCB welding operation, can clamp the PCB with smaller width by a single clamping unit during specific work, and can also position the PCB with larger area by using a plurality of clamping units in a matched way so as to ensure the stability during welding, improve the welding efficiency, ensure that the device has wide application range, can automatically shift by sliding on the supporting square pipe, thereby changing the distance between adjacent clamping units, changing the distance of corresponding fixed point positions, thereby ensuring that the device has good and efficient positioning effect on different PCBs, through being connected first cardboard and second cardboard through torsion spring, easy operation is convenient, and lower extreme between them can open fast or press from both sides tightly to improve PCB's handling efficiency, brought the convenience for the staff.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the connection between the movable base and the supporting square tube according to the present invention.

In the figure: the clamping device comprises a clamping unit 1, a first clamping plate 11, a second clamping plate 12, a first protruding part 13, a second protruding part 14, a connecting shaft 15, a washer 16, a torsion spring 17, a limiting groove 18, a base plate 19, a buffer sheet 2, a movable seat 21, a clamping groove 22, a supporting square tube 23, a positioning hole 24 and a butt joint hole 25.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a PCB circuit board welding clamp comprises at least one clamping unit 1, wherein the clamping unit 1 comprises a first clamping plate 11 with a first protruding part 13 on the side surface and a second clamping plate 12 with a second protruding part 14 on the side surface, the first protruding part 13 is connected with the second protruding part 14 through a connecting shaft 15, the second protruding part 14 is clamped on the inner side of the first protruding part 13 and is in clearance fit with the first protruding part, a gasket 16 is sleeved outside the connecting shaft 15, a positioning pin arranged on the side surface of the connecting shaft 15 is arranged outside the gasket 16, a torsion spring 17 is sleeved on the connecting shaft 15, two ends of the torsion spring 17 are respectively clamped in a limiting groove 18 on the side surface of the first clamping plate 11 and the second clamping plate 12, buffer sheets 2 are arranged on the inner sides of the first clamping plate 11 and the second clamping plate 12 through substrates 19, when the clamping unit 1 is in a standing state, the first clamping plate 11 is attached to the buffer sheets 2 on the inner side of the second clamping plate 12, and a plurality of clamping units 1 which can be randomly combined for use are arranged, can be simultaneously in one side of support side's pipe 23 as required through the installation correspond the effect that the centre gripping unit 1 of quantity was arranged in order to realize multiunit PCB side by side, thereby can conveniently carry out large-scale PCB welding operation, concrete during operation, the single centre gripping unit 1 of accessible carries out the centre gripping to the less PCB of width, do and use the great PCB of area to carry out the multiple spot location through the cooperation of a plurality of centre gripping units 1, thereby stability when guaranteeing the PCB welding, make welding efficiency obtain improving, guaranteed that the device has wide range of application.

The back of the clamping unit 1 is fixed with a movable seat 21 with a clamping groove 22 at the bottom, the clamping groove 22 is movably connected with a supporting square tube 23, the back of the supporting square tube 23 is provided with a plurality of groups of positioning holes 24 at equal intervals, the back of the movable seat 21 is provided with a butting hole 25 with the diameter equal to that of the positioning hole 24, the movable seat 21 and the positioning hole 24 are connected by screws in the butting hole 25, when the clamping unit 1 works, a user firstly clamps the movable seat 21 on the side surface of the clamping unit 1 on the supporting square tube 23 through the clamping groove 22 correspondingly, then adjusts the distance between the adjacent clamping units 1 by sliding the clamping unit 1, and then locks the movable seat 21 on the supporting square tube 23 by the positioning screws passing through the jointed positioning hole 24 and the butting hole 25, so as to realize the fixing process of the clamping unit 1, the clamping unit 1 can automatically shift by sliding on the supporting square tube 23, thereby changing the distance between the adjacent clamping units 1, with the distance that changes corresponding fixed point position, thereby guarantee that the device all has good and efficient location effect to the PCB of difference, when needs press from both sides tight installation to PCB, manual second cardboard 12 upper portion of pressing down makes it be close to first cardboard 11, second cardboard 12 downside opens this moment, put into PCB after that, loosen second cardboard 12, it is tight automatically with PCB clamp under torsion spring 17's effect, can fix PCB under the cooperation of a plurality of centre gripping unit 1 uses, can carry out corresponding point position welding process after that, through being connected first cardboard 11 and second cardboard 12 through torsion spring 17, and easy operation is convenient, lower extreme between them can open fast or press from both sides tightly, thereby improve PCB's handling efficiency, it is convenient to have brought for the staff.

The working principle is as follows:

the PCB circuit board welding clamp comprises a square supporting pipe 23, a moving seat 21 on the side surface of a clamping unit 1 is correspondingly clamped on the square supporting pipe 23 through a clamping groove 22 by a user, the distance between adjacent clamping units 1 is adjusted by sliding the clamping unit 1, the moving seat 21 is locked on the square supporting pipe 23 through a positioning screw passing through a positioning hole 24 and a butt joint hole 25, so that the fixing process of the clamping unit 1 is realized, when the PCB needs to be clamped and installed, the upper part of a second clamping plate 12 is manually pressed to be close to a first clamping plate 11, the lower side of the second clamping plate 12 is opened at the moment, the PCB is placed in, the second clamping plate 12 is loosened, the PCB is automatically clamped under the action of a torsion spring 17, the PCB can be fixed under the matching use of a plurality of clamping units 1, and then corresponding point position welding processing can be carried out, the device is combined and installed with a plurality of clamping units 1 through the square supporting pipe 23, thereby can install a plurality of PCBs side by side, the staff of being convenient for carries out welding process one by one, and easy operation is convenient, has effectively improved PCB welding efficiency.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a PCB circuit board welding jig, includes at least one clamping unit (1), its characterized in that: the clamping unit (1) comprises a first clamping plate (11) with a first protruding portion (13) arranged on the side face and a second clamping plate (12) with a second protruding portion (14) arranged on the side face, the first protruding portion (13) is connected with the second protruding portion (14) through a connecting shaft (15), a torsion spring (17) is sleeved on the connecting shaft (15), buffer pieces (2) are arranged on the inner sides of the first clamping plate (11) and the second clamping plate (12) through base plates (19), a moving seat (21) with the bottom provided with a clamping groove (22) is fixed on the back face of the clamping unit (1), a supporting square pipe (23) is movably connected inside the clamping groove (22), multiple groups of positioning holes (24) are equidistantly formed in the back face of the supporting square pipe (23), and butt joint holes (25) equal to the diameters of the positioning holes (24) are formed in the back face of the moving seat (21).

2. The PCB circuit board welding fixture of claim 1, wherein: the second protruding part (14) is clamped at the inner side of the first protruding part (13) and is in clearance fit with the first protruding part.

3. The PCB circuit board welding fixture of claim 1, wherein: the outer end of the connecting shaft (15) is sleeved with a gasket (16), and a positioning pin arranged on the side face of the connecting shaft (15) is arranged on the outer side of the gasket (16).

4. The PCB circuit board welding fixture of claim 1, wherein: two ends of the torsion spring (17) are respectively clamped in the side limiting grooves (18) of the first clamping plate (11) and the second clamping plate (12).

5. The PCB circuit board welding fixture of claim 1, wherein: the movable seat (21) is connected with the positioning hole (24) through a screw in the butt joint hole (25) in a screwed mode.

6. The PCB circuit board welding fixture of claim 1, wherein: when the clamping unit (1) is in a standing state, the first clamping plate (11) is attached to the buffer sheet (2) on the inner side of the second clamping plate (12).