CN217071301U

CN217071301U - Part limiting device and circuit board welding tool

Info

Publication number: CN217071301U
Application number: CN202220472178.6U
Authority: CN
Inventors: 徐小波; 朱志刚; 川越浩; 肖鸿彦; 李璇妹; 李甜桔; 张财志; 李树福; 陈江海; 何沃其; 高玉柱; 黄劲雄; 赵国龙; 吴明琳; 徐海华
Original assignee: Zhuhai Gree Daikin Device Co Ltd
Current assignee: Zhuhai Gree Daikin Device Co Ltd
Priority date: 2022-03-03
Filing date: 2022-03-03
Publication date: 2022-07-29
Anticipated expiration: 2032-03-03

Abstract

The utility model provides a part stop device, including upper cover and spacing subassembly, spacing subassembly includes the spacing subassembly of first locating part and lower extreme, first locating part is located between upper cover and the component and is connected with the upper cover is mobilizable, the spacing subassembly of lower extreme is located between component and the circuit board, be fixed with locating pin subassembly in the upper cover, locating pin subassembly includes more than one locating pin, be equipped with first through-hole group on the circuit board, first through-hole group includes the first through-hole more than one, be equipped with second through-hole group on the spacing subassembly of lower extreme, second through-hole group is including the second through-hole more than one, be equipped with the first locating part more than one on the component, first locating part is including the second locating part more than one, the locating pin, first locating part, the second locating part, first through-hole, the quantity of second through-hole is the same and the one-to-one. The utility model discloses simple structure, conveniently tear open and trade, can cooperate the setting element on through-hole on the circuit board and the component to carry out spacing fixed in all directions position to the component.

Description

Part limiting device and circuit board welding tool

Technical Field

The utility model relates to a wave-soldering technical field specifically is a relate to a part stop device and a circuit board welding frock.

Background

With the rapid development of the electronic industry, more assembly requirements are provided, wave soldering is taken as the first choice for assembly and soldering of circuit board plug-ins of automotive electronic products, various requirements are correspondingly met according to the diversity of the circuit board assemblies, plug-in components are required to be tightly attached to the board surface under the general condition, floating is avoided, damage to the components caused by collision is reduced, the circuit board also requires the plug-in components to float due to the requirement of complete machine assembly, the floating height has precision requirements, pins of the plug-in components are not allowed to be damaged, and the components are not allowed to be tilted after being soldered.

A current positioner for guaranteeing part assembly height includes gasket, upper cover, stopper and spring ejector pin, and the gasket is placed between component and circuit board, and the upper cover card is on the circuit board, and the spring ejector pin passes through the fix with screw and covers on, and the stopper passes through the spring ejector pin to be fixed on covering, and the effect of the high effect of restriction component of playing of gasket, stopper and spring ejector pin's cooperation play fixed element's effect. However, for the positioning of special elements, the position of the lower limiting block is not fixed, and the special elements are easily moved to cause deviation after being influenced by the outside, so that the risk of deflection exists after the elements are welded.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a part limiting device, which has a simple structure and is easy to disassemble and replace, and can limit the position of the component in all directions by the through hole on the circuit board and the positioning member on the component.

The second purpose of the utility model is to provide a part stop device's circuit board welding frock including above-mentioned first purpose.

In order to realize the first purpose, the utility model provides a part limiting device, which comprises an upper cover and a limiting component, wherein the limiting component comprises a first limiting part and a lower limiting component, the first limiting part is movably connected with the upper cover, the first limiting part is positioned between the upper cover and an element, the lower limiting component is positioned between the element and a circuit board, a positioning pin component is fixed in the upper cover and comprises more than one positioning pin, the circuit board comprises a first through hole group, the first through hole group comprises more than one first through hole, the lower limiting component is provided with a second through hole group, the second through hole group comprises more than one second through hole, the element is provided with more than one first positioning component, the first limiting part comprises more than one second positioning part, the positioning pins, the first positioning component, the second positioning parts, the first through holes and the second through holes are the same in number and are arranged in a one-to-one correspondence manner, the same set of positioning pin, the first positioning piece, the second positioning piece, the first through hole and the second through hole are coaxially arranged, the positioning pin, the first positioning piece, the second positioning piece and the second through hole are in clearance fit, and the limiting assembly and the positioning pin assembly enable the element to be limited in the X direction, the Y direction and the Z direction.

It is thus clear that the through-hole through the spacing subassembly that sets up and the locating pin subassembly cooperation circuit board carries out the location installation and makes the component spacing on X direction, Y direction and Z direction simultaneously, and the locating pin subassembly passes component and spacing subassembly and guarantees that spacing subassembly keeps the position unchangeable at the in-process of component processing to the locating pin subassembly with spacing subassembly clearance fit makes things convenient for the dismouting.

The first through hole group comprises two first through holes arranged at intervals, and the two first positioning pieces are two first positioning grooves formed in the edges of two opposite side walls of the element.

The two second positioning pieces are two second positioning grooves formed by the edges of two opposite side walls of the first limiting piece; or, the two second positioning parts are positioning holes.

Therefore, the two positioning grooves are formed in the two opposite side walls of the element, and the two second positioning pieces are correspondingly arranged on the first limiting piece, so that the element is limited in the X direction and the Y direction.

The first through hole group comprises a first through hole, a step part is formed on the lower end limiting component in a protruding mode, the element is connected to the step part in a clamped mode, and the step part and the positioning pin component enable the element to be limited in the X direction and the Y direction.

From the above, when the first through-hole group includes a through-hole, the protruding step that forms on locating pin and the spacing subassembly of lower extreme, the component joint is on the step for the component is spacing in X direction and Y direction, prevents that it from removing in welding process.

The circuit board is provided with a first limiting part and a second limiting part, the first limiting part is arranged in the accommodating part and close to the circuit board, the second through hole group is arranged on the first limiting part, and the projection of the first through hole group is arranged in the accommodating part along the Z direction.

From top to bottom, through setting the spacing subassembly of lower extreme to the form that can assemble, the second through-hole group is located the third locating part simultaneously, and the convenience has the third locating part of the second through-hole of corresponding thickness size according to the quick change of the locating pin of different thickness sizes.

Further, the accommodating portion includes a through groove or an open groove, and the accommodating portion communicates the element with the circuit board.

The third through hole group is arranged on the second limiting part and comprises more than one third through hole, the number of the third through holes is the same as that of the second through holes, one third through hole and one second through hole are coaxially arranged, the accommodating part is an accommodating cavity, the first side of the accommodating cavity is communicated with the circuit board to communicate with the second side of the accommodating cavity and the first side of each third through hole, and the second side of each third through hole is communicated with the first limiting part.

The further proposal is that a handle piece is arranged on the lower end limit component.

From top to bottom, conveniently shift out the spacing subassembly of lower extreme through setting up handle spare.

The further scheme is that a bolt is movably arranged in the upper cover and fixedly connected with a first limiting part, the first limiting part is made of metal materials, a plurality of height limiting columns are fixedly arranged on the upper cover, and one end of each height limiting column is abutted to the circuit board.

It can be seen from above that, through the whole height upper limit of the effective limiting device of limit for height post that sets up, first locating part pushes down the component of waiting to weld according to self gravity, and the distance between first locating part and the upper cover can the regulation of self-adaptation, and is convenient to control.

In order to realize above-mentioned second purpose, the utility model provides a pair of circuit board welding frock includes a part stop device of base and above-mentioned arbitrary one, is provided with the mounting groove on the base, and the equal opening in mounting groove top and bottom, mounting groove open-top's area are greater than mounting groove bottom open-ended area, and the circuit board is installed in the mounting groove.

To sum up, this device is spacing to the component in all directions position through setting up with circuit board through-hole and the setting element on the component to guarantee that spacing subassembly keeps the position unchangeable at the in-process of component processing, the dowel subassembly with spacing subassembly clearance fit makes things convenient for the dismouting, and circuit board welding frock base fretwork forms the mounting groove that open-top's area is greater than bottom open-ended area, and the circuit board is installed in the mounting groove, can prevent effectively that the tin pearl from splashing the product on, eliminating the quality hidden danger.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of the part limiting device and an element to be welded according to the present invention.

Fig. 2 is a schematic structural view of a second embodiment of the part limiting device and an element to be welded according to the present invention.

Fig. 3 is a schematic structural view of a third embodiment of the part limiting device and an element to be welded according to the present invention.

Fig. 4 is a perspective view of the embodiment of the circuit board welding tool of the present invention, in which the base is hidden.

Fig. 5 is a cross-sectional view of the embodiment of the circuit board welding tool of the present invention hiding the base.

Fig. 6 is a perspective view of an embodiment of the circuit board welding tool of the present invention.

Fig. 7 is a perspective view of the base of the embodiment of the circuit board welding tool of the present invention.

Detailed Description

First embodiment of part limiting device

Referring to fig. 1 in combination with fig. 4 and 5, the part limiting device provided in this embodiment includes an upper cover 20 and a limiting assembly, the limiting assembly includes a first limiting member 22d and a lower limiting assembly 23d, a fourth through hole 200d is disposed on the upper cover 20, a bolt 221d is movably disposed in the fourth through hole 200d, and the bolt 221d is fixedly connected to the first limiting member 22 d. Alternatively, the first limiting member 22d and the upper cover 20 may be connected by using an existing movable connection structure, for example, the upper cover 20 and the first limiting member 22d are fixed by a spring push rod (not shown in the figure).

In this embodiment, the first limiting member 22d is made of a metal material. The upper cover 20 is further fixedly provided with two height-limiting posts 24, one end of each height-limiting post 24 abuts against the circuit board 1, the first limiting member 22d is located between the upper cover 20 and the element 3d, the lower limiting member 23d is located between the element 3d to be welded and the circuit board 1, two positioning pins 21d are fixed in the upper cover 20, two first through holes 10d are arranged on the circuit board 1 at intervals, the lower limiting member 23d comprises a second limiting member 230d and a third limiting member 231d, the second limiting member 230d is provided with a containing portion 2300d, the containing portion 2300d is a through groove formed in the center of the second limiting member 230d, the third limiting member 231d is installed in the containing portion 2300d and close to the circuit board 1, the third limiting member 231d is in clearance fit with the containing portion 2300d, the third limiting member 231d is provided with two second through holes 2310d, and projections of the two second through holes 2310d are located in the Z direction, the second limiting member 230d is further provided with a bolt 2301d protruding thereon, so as to facilitate moving the second limiting member 230 d.

Two first positioning pieces 30d are arranged on the edges of the two opposite side walls of the element 3d, and the first positioning pieces 30d are two positioning grooves. Alternatively, the first positioning member 30d may be a positioning hole. The first limiting member 22d is provided with two second positioning members 220d, and the second positioning members 220d are two positioning grooves formed on the edges of two opposite sidewalls of the first limiting member 22 d. Optionally, the second positioning element 220d is a positioning hole. The positioning pins 21d, the first positioning member 30d, the second positioning member 220d, the first through hole 10d, and the second through hole 2310d are correspondingly arranged one by one, one positioning pin 21d, one first positioning member 30d, one second positioning member 220d, one first through hole 10d, and one second through hole 2310d of the same group are coaxially arranged, and the positioning pins 21d are in clearance fit with the first positioning member 30d, the second positioning member 220d, and the second through hole 2310d, so that the element 3d is limited in the X direction, the Y direction, and the Z direction.

Second embodiment of part limiting device

Referring to fig. 2 in combination with fig. 4 and 5, the present embodiment is different from the first embodiment in that a positioning pin 21a is fixedly disposed in the upper cover 20, a fourth through hole 200a is further disposed in the upper cover 20, a bolt 221a is fixedly connected to the first limiting member 22a, the bolt 221a is movably disposed in the fourth through hole 200a, a second positioning member 220a is disposed on the first limiting member 22a, the second positioning member 220a is a positioning groove formed on an edge of a sidewall of the first limiting member 22a, a first through hole 10a is disposed on the circuit board 1, the lower limiting member 23a includes a second limiting member 230a and a third limiting member 231a, an accommodating portion 2300a is disposed on the second limiting member 230a, the accommodating portion 2300a is an open groove formed on a side of the second limiting member 231a, a first positioning member 30a is disposed on the element 3a, and the first positioning member 30a is a through hole, a step portion 2302a is convexly formed on the second position-limiting member 230a, the element 3a is clamped in the step portion 2302a, the positioning pin 21a is in clearance fit with the first positioning member 30a, the second positioning member 220a and the second through hole 2310a, and the step portion 2302a is matched with the positioning pin 21a to limit the element 3a in the X direction and the Y direction.

Third embodiment of part limiting device

Referring to fig. 3 in combination with fig. 4 and 5, the present embodiment includes the component limiting device of the second embodiment, and the present embodiment is different from the first and second embodiments in that the limiting device includes an element 3a, an element 3b, and an element 3c that are arranged at intervals, three first through holes are arranged at intervals on a circuit board, the element 3a is provided with a first positioning member 30a, the element 3b is provided with a first positioning member 30b, the element 3c is provided with a first positioning member 30c, and the first positioning member 30a, the first positioning member 30b, and the first positioning member 30c are all through holes.

The first position-limiting part 22a is disposed above the element 3a, the second positioning part 220a is disposed on the first position-limiting part 22a, the first position-limiting part 22b is disposed above the element 3b, the second positioning part 220b is disposed on the first position-limiting part 22b, the first position-limiting part 22c is disposed above the element 3c, and the second positioning part 220c is disposed on the first position-limiting part 22 c.

A lower end limiting component 23a is arranged below the element 3a, a lower end limiting component 23c is arranged below the element 3c, the lower end limiting component 23a and the lower end limiting component 23c are arranged at intervals, the element 3b is arranged above the lower end limiting component 23a and the lower end limiting component 23c, wherein the lower end limiting component 23c comprises a second limiting member 230c and a third limiting member 231c, second through holes 2310b and 2310c are arranged at intervals on the third limiting member 231c, a containing cavity is formed on one side, close to the circuit board, of the second limiting member 230c, a third through hole 2303c is arranged on the second limiting member 230c, the third through hole 2303c and the second through hole 2310c are coaxially arranged, the first side of the containing cavity 2300c is communicated with the circuit board, the second side of the containing cavity 2300c is communicated with the first side of the third through hole 2303c, the second through hole 2300 b is arranged between the lower end limiting component 23a and the lower end limiting component 23c and is communicated with the first limiting component 30c b are coaxially arranged, a strip-shaped step portion 2302c extending along the Y direction in the length direction is protruded from the middle of the second stopper 230c, the element 3c abuts on the first side of the step portion 2302c, the element 3b abuts on the second side of the step portion 2302c, and the step portion 2302c prevents the element 3b and the element 3c from rotating during the process.

The upper cover is provided with positioning pins 21a, positioning pins 21b and positioning pins 21c at intervals, the positioning pins 21a are in clearance fit with the first positioning piece 30a, the second positioning piece 220a and the second through hole 2310a, the positioning pins 21b are in clearance fit with the first positioning piece 30b, the second positioning piece 220b and the second through hole 2310b, and the positioning pins 21c are in clearance fit with the first positioning piece 30c, the second positioning piece 220c and the second through hole 2310 c.

Referring to fig. 6 and 7, the embodiment further provides an electric board welding tool including the above-mentioned part limiting device, the tool further includes a base 4, a mounting groove 40 is provided on the base 4, both the top and the bottom of the mounting groove 40 are open, the area of the top opening of the mounting groove 40 is larger than the area of the bottom opening of the mounting groove 40, and the circuit board 1 is mounted in the mounting groove 40.

Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the present invention, and are not intended to limit the invention, as those skilled in the art will appreciate that various changes and modifications may be made, and any and all modifications, equivalents, and improvements made, while remaining within the spirit and principles of the present invention, are intended to be included within the scope of the present invention.

Claims

1. A part limiting device comprises an upper cover and a limiting assembly, wherein the limiting assembly comprises a first limiting piece and a lower end limiting assembly, the first limiting piece is movably connected with the upper cover, the first limiting piece is positioned between the upper cover and a component, and the lower end limiting assembly is positioned between the component and a circuit board;

the method is characterized in that:

the positioning pin component is fixed in the upper cover and comprises more than one positioning pin, the circuit board comprises more than one first through hole group, the first through hole group comprises more than one first through hole, the lower end limiting component is provided with a second through hole group, the second through hole group comprises more than one second through hole, the component is provided with more than one first positioning component, the first positioning component comprises more than one second positioning component, the positioning pin, the first positioning component, the second positioning component, the first through hole and the second through hole are arranged in the same number and in a one-to-one correspondence manner, the positioning pin, the first positioning component, the second positioning component, the first through hole and the second through hole are arranged in a coaxial line, and the positioning pin, the first positioning component and the second positioning component are arranged in the same group, The second through holes are in clearance fit, and the limiting assembly and the positioning pin assembly enable the element to be limited in the X direction, the Y direction and the Z direction.

2. A parts retainer as claimed in claim 1, wherein:

the first through hole group comprises two first through holes arranged at intervals, and the two first positioning pieces are two first positioning grooves formed by two opposite wall edges of the element.

3. A parts retainer as claimed in claim 2, wherein:

the two second positioning pieces are two second positioning grooves formed on the edges of two opposite side walls of the first limiting piece;

or, the two second positioning parts are positioning holes.

4. A parts retainer as claimed in claim 1, wherein:

the first through hole group comprises a first through hole, a step part is formed on the lower end limiting assembly in a protruding mode, the element is clamped on the step part, and the step part and the positioning pin assembly enable the element to be limited in the X direction and the Y direction.

5. A parts retainer according to any one of claims 1 to 4, wherein:

the lower end limiting assembly comprises a second limiting part and a third limiting part, a containing part is arranged on the second limiting part, the third limiting part is installed in the containing part and close to the circuit board, the second through hole group is located on the third limiting part, along the Z direction, and the projection of the second through hole group is located in the containing part.

6. A parts limitation unit as claimed in claim 5 wherein;

the accommodating portion includes a through groove or an open groove, and the accommodating portion communicates the element with the circuit board.

7. A parts retainer as claimed in claim 5, wherein:

be provided with the third through-hole group on the second locating part, the third through-hole group is including more than one third through-hole, the quantity of third through-hole with the quantity of second through-hole the same, one the third through-hole with one the second through-hole coaxial line sets up, the portion of holding is for holding the chamber, hold the chamber the first side with the circuit board intercommunication the second side and each that hold the chamber the first side intercommunication of third through-hole, the second side of third through-hole with first locating part intercommunication.

8. A parts retainer according to any one of claims 1 to 4, wherein:

and a handle piece is arranged on the lower end limiting component.

9. A parts retainer according to any one of claims 1 to 4, wherein:

mobilizable bolt that is provided with in the upper cover, the bolt with first locating part fixed connection, first locating part adopts metal material to make, it still fixes a plurality of limit for height posts to cover on, every limit for height post's one end butt is in on the circuit board.

10. A circuit board welding tool, including base and a part stop device of any one of claims 1 to 9, its characterized in that:

be provided with the mounting groove on the base, the top and the equal opening in bottom of mounting groove, mounting groove open-top's area is greater than mounting groove bottom open-ended area, the circuit board is installed in the mounting groove.