CN210491349U

CN210491349U - Contact pin welding tool

Info

Publication number: CN210491349U
Application number: CN201920807454.8U
Authority: CN
Inventors: 戴新弟; 唐超
Original assignee: Suzhou Yasid Auto Parts Co ltd
Current assignee: Suzhou Yasid Auto Parts Co ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-05-08
Anticipated expiration: 2029-05-31

Abstract

The utility model provides a contact pin welding frock, including the frock base member, the frock base member includes the base, the setting is at the step that sinks of base front end, fix the rapid fixture of the step upper surface that sinks and be used for placing the contact pin locating piece of treating the welding workpiece, the contact pin locating piece includes that a plurality of contact pin static locating pieces and contact pin move the locating piece, first locating pin is all installed at every contact pin static locating piece both ends, a plurality of constant head tanks have all been seted up to every contact pin static locating piece one side, the contact pin groove has all been seted up to constant head tank front end both sides, the contact pin moves the locating piece axial and sets up the waist type guiding hole that runs through the upper and lower surface, install the guide block in the guiding hole, the second locating pin is installed to the guide block, the. The utility model discloses a contact pin welding frock has the characteristics that welding position is accurate, the welding subassembly of being convenient for takes out.

Description

Contact pin welding tool

Technical Field

The utility model relates to a welding field of circuit board, in particular to contact pin welding frock.

Background

Along with the change of science and technology, the functions of electronic products are more and more complicated, and intelligent terminals such as mobile phones, flat plates, wearable devices and other electronic products have more and more delicate and miniaturized internal structures. The terminals often have multiple circuit boards or electronic components inside.

The special PCB cannot be welded and the required precision is high. In order to facilitate welding of electronic components on the circuit board, circuit board mounting holes are generally formed in corresponding positions of the circuit board, and before the electronic components are welded on the circuit board, the circuit board generally needs to be placed on a tool clamp and then welding operation is carried out. In the prior art, a support column is installed on a circuit board, pin welding installation is generally carried out on the circuit board one by one manually, and after a single pin is welded, parts are difficult to take out of a tool due to the fact that the number of the pins is large.

In view of this, the utility model provides a contact pin welding frock that welding position is accurate, the welding assembly of being convenient for takes out to overcome the problem that above-mentioned prior art exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a contact pin welding frock that welding position is accurate, the welding subassembly of being convenient for takes out, it has solved the problem that above-mentioned prior art exists.

In order to achieve the above object, the utility model discloses a technical scheme be: a contact pin welding tool comprises a tool base body, wherein the tool base body comprises a base, a sinking step arranged at the front end of the base, a rapid clamp fixed on the upper surface of the sinking step and a contact pin positioning block used for placing a workpiece to be welded, the pin positioning blocks comprise a plurality of pin static positioning blocks which are uniformly fixed on the upper surface of the base and pin dynamic positioning blocks which are used for being matched with the pin static positioning blocks, first positioning pins are arranged at two ends of each pin static positioning block, a plurality of positioning grooves which are sunken from outside to inside are arranged on one side of each pin static positioning block, the two sides of the front end of the positioning groove are both provided with a pin groove, the center of the pin movable positioning block is axially provided with a waist-shaped guide hole which penetrates through the upper surface and the lower surface, the contact pin moving positioning block is provided with a plurality of bulges matched with the positioning grooves.

Furthermore, the contact pin static positioning blocks comprise two groups, the two groups of contact pin static positioning blocks are symmetrically distributed on the upper surface of the base, a first gap is reserved between the two groups of contact pin static positioning blocks, a second gap is reserved between the contact pin static positioning blocks in each group, and the first gap and the second gap are vertical and communicated.

Further, the pin moving positioning block is embedded in the first gap and the second gap.

Furthermore, the end part of the pin moving positioning block is provided with a U-shaped placing groove which is sunken from outside to inside, and the other end part of the pin moving positioning block is provided with a screw hole.

Further, a fixed block is installed at the end part of the base, a second screw is installed in the fixed block, and the second screw penetrates through the fixed block, extends out inwards and penetrates through a spring.

Furthermore, the second screw is inserted into the screw hole, and the tail end of the spring is propped against the movable positioning block of the contact pin.

Furthermore, the upper surface of the base is respectively fixed with cushion blocks positioned at two sides of the static positioning block of the contact pin, pressing blocks used for pressing the workpiece to be welded are arranged above the cushion blocks, and the two pressing blocks are distributed on the base in a diagonal manner.

Furthermore, the quick clamp comprises a clamp body, a quick chuck arranged at the front end of the clamp body and a handle rotatably connected to the rear end of the clamp body.

Compared with the prior art, the utility model relates to a contact pin welding frock's beneficial effect: the pin positioning device is provided with a pin static positioning block and a pin dynamic positioning block, and two ends of each pin static positioning block are provided with first positioning pins to realize accurate positioning with a base; a guide block is arranged in a guide hole of the movable pin positioning block, and the guide block realizes the accurate positioning of the movable pin positioning block and the static pin positioning block through a second positioning pin; meanwhile, the protrusions of the pin moving positioning blocks are embedded in the corresponding positioning grooves, so that the pin moving positioning blocks are prevented from shaking during welding; the handle of the rapid clamp is lifted upwards, so that the welded workpiece can be taken out, and the operation is simple. The utility model discloses a contact pin welding frock adopts the movable locate mode of components of a whole that can function independently, and the welding subassembly of being convenient for takes out, has the accurate characteristics of welding position.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic working diagram of the contact pin welding tool of the present invention;

fig. 2 is a schematic view of the contact pin welding tool of the present invention;

FIG. 3 is a partially enlarged schematic view of the pin welding fixture in FIG. 2;

FIG. 4 is an exploded view of the pin welding tool of FIG. 1;

FIG. 5 is a schematic view of the pin moving positioning block of FIG. 4;

FIG. 6 is a schematic diagram of the pin static positioning block of FIG. 4;

fig. 7 is an enlarged schematic view of the pin static positioning block of fig. 6.

Detailed Description

The present invention will be described in detail below with reference to the drawings, but it should be emphasized that the following embodiments are merely illustrative and are not intended to limit the scope and application of the present invention.

Referring to fig. 1 to 7, the present invention provides a pin welding fixture, which includes a workpiece 10 to be welded and a fixture base 20 for placing the workpiece 10 to be welded. In this embodiment, the workpiece 10 to be welded is a PCB, but is not limited to a PCB. Wherein, a plurality of pinholes 11 are arranged on the workpiece 10 to be welded.

Referring to fig. 1, in an embodiment of the present invention, the fixture base 20 includes a base 21, a sinking step 22 disposed at a front end of the base 21, a fast fixture 23 fixed on an upper surface of the sinking step 22, and a pin positioning block 24 for placing a workpiece 10 to be welded.

Specifically, referring to fig. 2, the quick clamp 23 includes a clamp body 231, a quick clamp 232 disposed at a front end of the clamp body 231, and a handle 233 rotatably coupled to a rear end of the clamp body 231. In order to facilitate the removal of the welding workpiece, the holder body 231 is provided at the rear end thereof with a shaft hole 2311 for connecting the handle 233, the front end of the handle 233 is mounted in the shaft hole 2311 via a rotation shaft 2331, and the handle 233 is rotated about the rotation shaft 2331.

Specifically, referring to fig. 2, the pin positioning block 24 includes a plurality of pin static positioning blocks 241 uniformly fixed on the upper surface of the base 21 and a pin dynamic positioning block 242 for precisely matching with the pin static positioning blocks 241. Referring to fig. 4, in the embodiment, the pin-fixing blocks 241 include two sets, the two sets of pin-fixing blocks 241 are symmetrically distributed on the upper surface of the base 21, and a first gap 2411 is left between the two sets of pin-fixing blocks 241. Each group of pin static positioning blocks 241 is provided with 5 pin static positioning blocks 241, the 5 pin static positioning blocks 241 are parallel to each other with a second gap 2412 left therebetween, and the first gap 2411 is perpendicular to and communicated with the second gap 2412. When the pin movable positioning block 242 and the pin static positioning block 241 are closed, the pin movable positioning block 242 is embedded in the first gap 2411 and the second gap 2412.

Referring to fig. 4, in order to achieve precise positioning, first positioning pins 2413 are installed at two ends of each pin static positioning block 241, and two of the pin static positioning blocks 241 are selected to install a positioning pin 2414. The pin-fixing positioning block 241 is fixed to the base 21 by a first screw 2415, and the first screw 2415 is located between the two first positioning pins 2413. Referring to fig. 6, in addition, a plurality of positioning grooves 2416 recessed from the outside to the inside are formed at one side of each pin static positioning block 241, and the positioning grooves 2416 penetrate through the upper and lower surfaces of the pin static positioning block 241. Referring to fig. 7, in the present embodiment, 3 positioning grooves 2416 are arranged in parallel, each positioning groove 2416 includes a notch 2417 at the front end, and pin grooves 2418 are formed at both sides of the notch 2417.

Referring to fig. 4, the pin moving positioning block 242 has an integrated structure, and a waist-shaped guide hole 2421 penetrating through the upper and lower surfaces is axially formed at the center of the pin moving positioning block 242. In order to realize accurate positioning of the pin movable positioning block 242 and the pin static positioning block 241, a strip-shaped guide block 2422 is installed in the guide hole 2421, and the guide block 2422 realizes the closing of the pin movable positioning block 242 and the pin static positioning block 241 through a pair of second positioning pins 2423.

Referring to fig. 3, in order to facilitate the installation of the quick chuck 232, a U-shaped installation groove 2424 recessed from the outside to the inside is formed at an end of the pin moving positioning block 242, and a screw hole 2425 is formed at the other end of the pin moving positioning block 242. To clamp the pin moving block 242, a fixing block 2426 is mounted on the end of the base 21, and a second screw 2427 is mounted in the fixing block 2426, wherein the second screw 2427 extends inwardly through the fixing block 2426 and passes through a spring 2428. When the pin movable positioning block 242 and the pin static positioning block 241 are closed, the second screw 2427 is inserted into the screw hole 2425, and the end of the spring 2428 abuts against the pin movable positioning block 242. In order to avoid the pin moving positioning block 242 from shaking during welding, the pin moving positioning block 242 is provided with a plurality of protrusions 2429 matched with the positioning grooves 2416. When the pin movable positioning block 242 and the pin static positioning block 241 are closed, the protrusions 2429 are embedded in the corresponding positioning grooves 2416.

Referring to fig. 3, in order to fix the workpiece 10 to be welded, the upper surface of the base 21 is respectively fixed with a cushion block 211 located at two sides of the pin static positioning block 241, a pressing block 212 is installed above the cushion block 211, a portion of the pressing block 212 protrudes inward relative to the cushion block 211, and the inward protruding portion of the pressing block 212 is used for pressing the workpiece 10 to be welded, so as to prevent the workpiece 10 to be welded from shaking. Moreover, the two pressing blocks 212 are diagonally distributed on the base 21.

When the quick clamping head 232 works, the quick clamping head 232 is firstly inserted into the arrangement groove 2424, the handle 233 of the quick clamp 23 is pressed to the bottom, the pin movable positioning block 242 and the pin static positioning block 241 are in a closed state, and the tail end of the spring 2428 is propped against the pin movable positioning block 242; then, the pin 30 is placed in the pin groove 2418; then, the workpiece 10 to be welded is placed on the upper surfaces of the closed pin movable positioning block 242 and the pin static positioning block 241, the pin 30 simultaneously penetrates upwards through the pin hole 11 of the workpiece 10 to be welded and is exposed outwards, and then welding is carried out; after the welding is completed, the handle 233 of the quick clamp 23 is lifted, and the welding workpiece is taken out.

The utility model is provided with a pin static positioning block 241 and a pin dynamic positioning block 242 which is precisely matched with the pin static positioning block 241, and a first positioning pin 2413 is arranged at both ends of each pin static positioning block 241 to realize the precise positioning with the base 21; a guide block 2422 is arranged in a guide hole 2421 of the pin moving positioning block 242, and the pin moving positioning block 242 and the pin static positioning block 241 are accurately positioned by the guide block 2422 through a second positioning pin 2423; meanwhile, the protrusion 2429 of the pin moving positioning block 242 is embedded in the corresponding positioning groove 2416, so that the pin moving positioning block 242 is prevented from shaking during welding; the handle 233 of the rapid clamp 23 is lifted upwards to take out the welding workpiece, and the operation is simple. The utility model discloses a contact pin welding frock adopts the movable locate mode of components of a whole that can function independently, and the welding subassembly of being convenient for takes out, has the accurate characteristics of welding position.

Of course, those skilled in the art should realize that the above-mentioned embodiments are only used for illustrating the present invention, and not for limiting the present invention, and that the changes and modifications to the above-mentioned embodiments are all within the scope of the appended claims as long as they are within the true spirit of the present invention.

Claims

1. The utility model provides a contact pin welding frock, includes the frock base member, its characterized in that: the fixture base body comprises a base, a sinking step arranged at the front end of the base, a rapid clamp fixed on the upper surface of the sinking step and a contact pin positioning block used for placing a workpiece to be welded, the pin positioning blocks comprise a plurality of pin static positioning blocks which are uniformly fixed on the upper surface of the base and pin dynamic positioning blocks which are used for being matched with the pin static positioning blocks, first positioning pins are arranged at two ends of each pin static positioning block, a plurality of positioning grooves which are sunken from outside to inside are arranged on one side of each pin static positioning block, the two sides of the front end of the positioning groove are both provided with a pin groove, the center of the pin movable positioning block is axially provided with a waist-shaped guide hole which penetrates through the upper surface and the lower surface, the contact pin moving positioning block is provided with a plurality of bulges matched with the positioning grooves.

2. The pin welding tool according to claim 1, characterized in that: the pin static positioning blocks comprise two groups, the two groups of pin static positioning blocks are symmetrically distributed on the upper surface of the base, a first gap is reserved between the two groups of pin static positioning blocks, a second gap is reserved between the pin static positioning blocks in each group, and the first gap and the second gap are perpendicular and communicated.

3. The pin welding tool according to claim 2, characterized in that: the pin moving positioning block is embedded in the first gap and the second gap.

4. The pin welding tool according to claim 3, characterized in that: the end part of the pin moving positioning block is provided with a U-shaped placing groove which is sunken from outside to inside, and the other end part of the pin moving positioning block is provided with a screw hole.

5. The pin welding tool according to claim 4, wherein: the fixed block is installed to the base tip, install the second screw in the fixed block, the second screw passes the fixed block inwards stretches out and passes a spring.

6. The pin welding tool according to claim 5, characterized in that: the second screw is inserted into the screw hole, and the tail end of the spring is propped against the movable positioning block of the contact pin.

7. The pin welding tool according to claim 5, characterized in that: cushion blocks located on two sides of the pin static positioning block are respectively fixed on the upper surface of the base, pressing blocks used for pressing the workpiece to be welded are installed above the cushion blocks, and the two pressing blocks are distributed on the base in a diagonal manner.

8. The pin welding tool according to claim 4, wherein: the rapid clamp comprises a clamp body, a rapid chuck arranged at the front end of the clamp body and a handle rotationally connected to the rear end of the clamp body, and the rapid chuck is inserted into the placing groove.