CN219274724U

CN219274724U - Wave soldering jig

Info

Publication number: CN219274724U
Application number: CN202320704858.0U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Kunshan Microprices Electronic Technology Co ltd
Current assignee: Kunshan Microprices Electronic Technology Co ltd
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-06-30
Anticipated expiration: 2033-04-03

Abstract

The utility model discloses a wave soldering jig which comprises a chassis, a tin shielding frame, a cover plate, guide posts and a lock catch, wherein the tin shielding frame is arranged at the peripheral edge of the upper end face of the chassis, the cover plate is arranged above the chassis through the guide posts and is detachably buckled with the chassis through the lock catch to be connected together, a PCB to be soldered is positioned between the chassis and the cover plate, the chassis comprises a synthetic stone positioning plate and a titanium alloy insert which are hollowed-out, and the titanium alloy insert is inlaid in a local area of the synthetic stone positioning plate and corresponds to a position where elements on the PCB are dense. The chassis consists of the synthetic stone locating plate and the titanium alloy insert inlaid in the local area of the synthetic stone locating plate, and the titanium alloy insert corresponds to the position of the element dense part on the PCB to be welded, so that the chassis is not easy to deform and break during welding, the cost is saved, and the product quality and the durability are greatly improved, thereby improving the working efficiency.

Description

Wave soldering jig

Technical Field

The utility model relates to the technical field of welding jigs, in particular to a wave soldering jig.

Background

A jig is often used in industrial production as a tool for assisting in controlling a position or an action (or both) so as to pre-position a plurality of workpieces requiring positioning, mounting, dispensing, welding, or bonding, etc., thereby performing mass production. At present, in the related fields of circuit boards, an automatic soldering machine is generally adopted to perform corresponding soldering operation on the circuit boards.

In the prior art, a product to be welded is placed on a jig, and then tin soldering is performed on the product by using a soldering iron, but the chassis of the conventional jig is made of the same material, usually a synthetic stone material, but if the inserts on a circuit board are relatively dense, the synthetic stone material is easy to deform and break, so that the quality and durability of the product are greatly reduced.

Disclosure of Invention

The utility model mainly solves the technical problem of providing a wave soldering jig, and solves the problem that the existing chassis is easy to deform and break during soldering.

In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a wave soldering jig, including chassis, fender tin frame, apron, guide pillar and hasp, it installs to keep off the tin frame the border department all around of chassis up end, the apron passes through the guide pillar is installed the top of chassis, and pass through the hasp with chassis detachable lock links together, treats welded PCB board is located the chassis with between the apron, wherein, the chassis includes synthetic stone locating plate and the titanium alloy mold insert of fretwork design, the titanium alloy mold insert inlay in the local region of synthetic stone locating plate, and correspond to be located the position of component intensive department on the PCB board.

In a preferred embodiment of the present utility model, the guide posts are vertically installed at four corners of the lower end surface of the cover plate, respectively.

In a preferred embodiment of the present utility model, a positioning hole seat is mounted on the chassis and used together with the guide post.

In a preferred embodiment of the present utility model, the lock catch includes an upper lock catch and a lower lock seat that are matched, the upper lock catch is symmetrically installed at a middle position in a width direction of a lower end surface of the cover plate, and the lower lock seat is symmetrically installed at a middle position in a width direction of an upper end surface of the chassis and corresponds to the upper lock catch.

In a preferred embodiment of the present utility model, a plurality of elastic pressing heads are further installed on the cover plate, and the positions of the elastic pressing heads correspond to the positions of the inserts on the PCB board.

In a preferred embodiment of the present utility model, the elastic pressure head comprises a screw rod, a screw rod sleeve, a spring and a pressure head, wherein the screw rod is installed in the screw rod sleeve in an inserting way and extends to protrude out of the upper end and the lower end of the screw rod sleeve, the pressure head is installed at the bottom of the screw rod, and the spring is sleeved on the screw rod and is located between the screw rod sleeve and the pressure head.

The beneficial effects of the utility model are as follows: the wave soldering jig provided by the utility model has the advantages that the chassis consists of the synthetic stone locating plate and the titanium alloy insert embedded in the local area of the synthetic stone locating plate, the titanium alloy insert corresponds to the position of the element-dense part on the PCB to be soldered, deformation and fracture are not easy to occur during soldering, the cost is saved, and the product quality and durability are greatly improved, so that the working efficiency is improved.

Drawings

FIG. 1 is a schematic view of an open state of a wave soldering tool of the present utility model;

FIG. 2 is a schematic view of the wave soldering fixture of the present utility model in a closed state;

FIG. 3 is a schematic view of the structure of the spring ram of FIGS. 1 and 2;

the components in the drawings are marked as follows: 1. a chassis; 2. a tin shielding frame; 3. a cover plate; 4. a guide post; 5. locking; 6. positioning hole seats; 7. an elastic pressure head; 101. a synthetic stone locating plate; 102. a titanium alloy insert; 501. a lock catch is arranged; 502. a lower lock base; 701. a screw; 702. a screw sleeve; 703. a spring; 704. a pressure head.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.

Referring to fig. 1 to 3, the present embodiment includes:

the utility model provides a wave soldering tool, includes chassis 1, keeps off tin frame 2, apron 3, guide pillar 4 and hasp 5, keeps off tin frame 2 and installs in chassis 1 up end edge department all around, and apron 3 passes through guide pillar 4 and installs in chassis 1's top to link together through hasp 5 and chassis 1 detachable lock, wait that welded PCB board (not shown in the figure) is located between chassis 1 and apron 3.

The chassis 1 comprises a synthetic stone locating plate 101 and a titanium alloy insert 102 which are in a hollowed-out design, the titanium alloy insert 102 is inlaid in a local area of the synthetic stone locating plate 101 and is correspondingly positioned at a position where elements are densely arranged on a PCB, deformation and fracture are not easy to occur during welding, and the chassis is made of a whole titanium alloy material, so that the defects of difficult deformation and fracture during welding are overcome, but the chassis is high in price and high in cost. After the synthetic stone material and the titanium alloy material are combined, the cost is saved, and meanwhile, the product quality and the durability are greatly improved, so that the working efficiency is improved.

The guide posts 4 are vertically arranged on four corners of the lower end face of the cover plate 3 respectively, the chassis 1 is provided with positioning hole seats 6 matched with the guide posts 4, the cover plate 3 is conveniently arranged above the chassis 1, and a PCB to be welded is arranged between the chassis 1 and the cover plate 3.

The lock catch 5 comprises an upper lock catch 501 and a lower lock seat 502 which are matched for use, wherein the upper lock catch 501 is symmetrically arranged at the middle position of the lower end face of the cover plate 3 in the width direction, and the lower lock seat 502 is symmetrically arranged at the middle position of the upper end face of the chassis 1 in the width direction and corresponds to the position of the upper lock catch 501. The cover plate 3 and the chassis 1 are locked in progress through the lock catch 5, so that a PCB installed between the chassis 1 and the cover plate 3 is not easy to shift, and accurate welding is realized.

Further, a plurality of elastic pressure heads 7 are further arranged on the cover plate 3, the positions of the elastic pressure heads are corresponding to the positions of the plug-ins on the PCB, and the elastic pressure heads 7 on the cover plate 3 press the corresponding plug-ins on the PCB, so that the quality during welding is further ensured.

The elastic pressure head 7 comprises a screw 701, a screw sleeve 702, a spring 703 and a pressure head 704, wherein the screw 701 is inserted into the screw sleeve 702 and extends to protrude out of the upper end and the lower end of the screw sleeve 702, the pressure head 704 is arranged at the bottom of the screw 701, the spring 703 is sleeved on the screw 701 and is positioned between the screw sleeve 702 and the pressure head 704, the pressure head 704 has a telescopic function through the elasticity of the spring 703 and is used for laminating and pressing an insert on a PCB, so that the quality during welding is ensured, and reworking is not easy.

When the jig is used, the PCB board to be welded, which is inserted with the plug-in unit, is put into the chassis 1, the cover plate 4 is arranged at the position through the guide post 4 and the positioning hole seat 6 which are matched, the cover plate is positioned above the PCB board, the lock catches 5 on the two sides are buckled, the elastic pressure head 7 on the cover plate 4 presses the corresponding plug-in unit on the PCB board, the whole jig is put into a wave soldering assembly line, batch tin feeding of the plug-in units on the PCB board is realized after the jig enters a wave soldering furnace, and the welding task is completed.

The wave soldering jig provided by the utility model has the distinguishing characteristics with the prior art:

1. the chassis consists of a synthetic stone locating plate and a titanium alloy insert inlaid in a local area of the synthetic stone locating plate, the titanium alloy insert corresponds to the position of the element-dense part on the PCB to be welded, deformation and fracture are not easy to occur during welding, cost is saved, and meanwhile, the product quality and durability are greatly improved, so that the working efficiency is improved;

2. the cover plate is also provided with a plurality of elastic pressure heads, the positions of the elastic pressure heads correspond to the positions of the plug-ins on the PCB, the elastic pressure heads on the cover plate press the corresponding plug-ins on the PCB, so that the follow-up tin feeding of the plug-ins to realize stability is facilitated, and the welding quality is ensured.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or straight lines or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides a wave soldering tool, its characterized in that includes chassis, fender tin frame, apron, guide pillar and hasp, it installs to keep off the tin frame the border department all around of chassis up end, the apron passes through the guide pillar is installed the top of chassis, and through the hasp with chassis detachable lock links together, waits welded PCB board to be located the chassis with between the apron, wherein, the chassis includes synthetic stone locating plate and the titanium alloy mold insert of fretwork design, the titanium alloy mold insert inlay in the local region of synthetic stone locating plate, and correspond to be located the position of component intensive department on the PCB board.

2. The wave soldering jig of claim 1, wherein the guide posts are vertically mounted on four corners of the lower end surface of the cover plate, respectively.

3. The wave soldering jig of claim 2, wherein the chassis is provided with a locating hole seat for use with the guide post.

4. The wave soldering jig according to claim 1, wherein the lock catch comprises an upper lock catch and a lower lock catch which are matched, the upper lock catch is symmetrically arranged at the middle position in the width direction of the lower end face of the cover plate, and the lower lock catch is symmetrically arranged at the middle position in the width direction of the upper end face of the chassis and corresponds to the position of the upper lock catch.

5. The wave soldering jig of claim 1, wherein a plurality of elastic indenters are further mounted on the cover plate and correspond to the position of the insert on the PCB.

6. The wave soldering jig of claim 5, wherein the elastic ram comprises a screw, a screw sleeve, a spring and a ram, the screw is inserted and mounted in the screw sleeve and extends to protrude from the upper end and the lower end of the screw sleeve, the ram is mounted at the bottom of the screw, and the spring is sleeved on the screw and is positioned between the screw sleeve and the ram.