CN215187636U

CN215187636U - Auxiliary tin positioning jig for circuit board

Info

Publication number: CN215187636U
Application number: CN202121278920.1U
Authority: CN
Inventors: 余三容
Original assignee: Shenzhen Huakesheng Digital Technology Co ltd
Current assignee: Shenzhen Huakesheng Digital Technology Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-12-14
Anticipated expiration: 2031-06-08

Abstract

The utility model discloses a tin positioning auxiliary tool on a circuit board, which comprises a first tool provided with a circuit board bearing surface; the second jig is detachably connected with the first jig and is opposite to the bearing surface of the circuit board, the second jig is provided with an abutting assembly comprising an abutting column and a first elastic piece, the abutting column is arranged on the surface, facing the bearing surface of the circuit board, of the second jig and can move relative to the second jig along the direction facing to and departing from the bearing surface of the circuit board, and the first elastic piece is connected with the second jig and the abutting column; the second tool still is equipped with first guide and the second guide that the structure is inequality, and first tool still is formed with and supplies first guide and second guide to insert first guiding hole and the second guiding hole of establishing respectively. The utility model discloses technical scheme can carry on spacingly to electronic components on the base plate of circuit board, guarantees the final installation effect on the base plate of electronic components.

Description

Auxiliary tin positioning jig for circuit board

Technical Field

The utility model relates to a circuit board manufacturing technology field, in particular to tin location auxiliary jig on circuit board.

Background

The circuit board generally includes base plate and electronic components, and electronic components's pin is inserted and is located on the base plate, later realizes comparatively stable welded fastening between them through the mode of wave-soldering. However, the circuit board in the related art is not usually provided with a limiting structure before entering the tin furnace, so as to pre-fix the relative position relationship between the substrate and the electronic component. Therefore, when the circuit board shakes during the transportation process of the tin furnace, the electronic components can move relatively on the substrate and deviate from the preset installation position, and the final installation effect of the electronic components on the substrate is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a supplementary tool of tin location on circuit board aims at carrying on spacingly to electronic components on the base plate of circuit board, reduces the circuit board and takes place to rock and make electronic components take place relative removal probably on the base plate in the transportation process through the tin stove to guarantee the final installation effect on the base plate of electronic components.

In order to achieve the above object, the utility model provides a tin positioning auxiliary fixture includes on the circuit board:

the first jig is provided with a circuit board bearing surface; and

the second jig is connected with the first jig and arranged opposite to the bearing surface of the circuit board, the second jig is provided with a butting component, the butting component comprises a butting column and a first elastic piece, the butting column is arranged on the surface, facing the bearing surface of the circuit board, of the second jig and can move along the direction facing to and departing from the bearing surface of the circuit board relative to the second jig, and the first elastic piece is connected with the second jig and the butting column; the second jig is further provided with a first guide piece and a second guide piece, the structures of the first guide piece and the second guide piece are different, and the first jig is further provided with a first guide hole and a second guide hole which are respectively used for the first guide piece and the second guide piece to be inserted.

In an embodiment of the present invention, a surface of the second jig facing the circuit board carrying surface is further provided with a fixing column, and the fixing column extends along a direction facing the circuit board carrying surface;

the abutting column is movably sleeved at one end of the fixing column facing the bearing surface of the circuit board;

the first elastic piece is sleeved on the fixed column, the first elastic piece is defined to have two opposite ends, and the two opposite ends of the first elastic piece are elastically abutted to the abutting column and the first jig respectively.

In an embodiment of the present invention, a jack is disposed in the abutting column, the jack extends along a moving direction of the abutting column and penetrates through a surface of the abutting column facing the second fixture, and a position of an inner wall surface of the jack near an orifice of the jack is convexly provided with a limiting portion;

one end, facing the circuit board bearing surface, of the fixing column is inserted into the jack, a stopping portion is convexly arranged on the lateral peripheral surface of the fixing column inserted into the jack, and the surface, deviating from the bottom wall of the jack, of the stopping portion abuts against the surface, facing the bottom wall of the jack, of the limiting portion.

In an embodiment of the present invention, the limiting portion includes a plurality of rib segments, the plurality of rib segments are disposed around the side circumference of the insertion hole at intervals, and the surfaces of the plurality of rib segments facing the bottom wall of the insertion hole are all abutted against the surface of the stopping portion deviating from the bottom wall of the insertion hole;

the butt joint post is equipped with between every adjacent two protruding muscle section and becomes the groove, it runs through to become the groove the inside wall of butt joint post, the lateral wall of butt joint post and the butt joint post is formed with the surface in the drill way of jack.

In an embodiment of the present invention, the stopping portion is a nut sleeved on one end of the fixing column inserted into the insertion hole, and the nut is connected to the fixing column by a thread.

In an embodiment of the present invention, a surface of the second jig facing the circuit board carrying surface is further provided with a square pillar, the square pillar extends in a direction toward the first jig, and the square pillar becomes the first guide;

the surface of the second jig facing the bearing surface of the circuit board is also provided with a circular column, the circular column extends in the direction facing the first jig, and the circular column becomes the second guide piece.

In an embodiment of the present invention, the second fixture is defined to have four corner areas, and the square pillar and the circular pillar are respectively located in two corner areas of the second fixture, which are diagonally located.

In an embodiment of the present invention, the first jig further has a clamping groove;

the second jig is further provided with a locking assembly, the locking assembly comprises a clamping piece and a second elastic piece, the clamping piece is movably connected with the second jig, the second elastic piece is connected with the clamping piece and the second jig, and drives the clamping piece to move relative to the second jig and be close to the clamping groove, so that the second jig is detachably connected with the first jig.

In an embodiment of the present invention, the joint member is convexly provided with a rotating shaft, the second jig is provided with a rotating hole at a position corresponding to the rotating shaft, and the rotating shaft is inserted into the rotating hole;

the second elastic piece is a torsion spring, the torsion spring comprises a main body section and two torsion arms connected to two opposite ends of the main body section, the main body section is sleeved on the rotating shaft, the two torsion arms are respectively connected to the second jig and the clamping piece, and the torsion spring drives the clamping piece to rotate relative to the second jig and to be close to the clamping groove.

In an embodiment of the present invention, the first jig is further provided with a joint block, the joint block is detachably connected to the circuit board carrying surface of the first jig, the joint block is provided with a groove running through the side wall surface thereof and facing the surface of the circuit board carrying surface, the groove and the circuit board carrying surface are formed in a surrounding manner to form the joint groove.

The utility model discloses a technical scheme's supplementary tool of tin location on circuit board can settle the base plate of circuit board on the circuit board loading end of first tool earlier when using, later installs the second tool on first tool. Because the second jig is provided with the abutting assembly, the abutting column of the abutting assembly can abut against and be pushed by the electronic component on the substrate in the circuit board in the process of connecting the second jig to the first jig. The first elastic piece of butt joint subassembly is compressed and produces formation elasticity this moment, can drive the butt post through this deformation elasticity and support tightly in the surface that electronic components deviates from the base plate for electronic components is spacing to be fixed in the base plate, thereby has realized spacing to electronic components. Compared with the prior art that the circuit board is not provided with a limiting structure to pre-fix the relative position relation between the substrate and the electronic component before entering the tin furnace, the auxiliary fixture for tin feeding of the circuit board can limit the electronic component on the substrate of the circuit board, namely pre-fix the relative position relation between the substrate and the electronic component, and then the circuit board can be conveyed as a whole in the tin furnace to complete tin feeding of the circuit board. At the moment, the possibility that the circuit board shakes in the conveying process of the circuit board through the tin furnace to enable the electronic components to move relatively on the substrate is reduced, and therefore the final mounting effect of the electronic components on the substrate is guaranteed.

In addition, the second tool of the auxiliary tool for tin positioning on the circuit board in the scheme is also provided with a first guide piece and a second guide piece, and the first tool is provided with a first guide hole and a second guide hole which are respectively used for inserting the first guide piece and the second guide piece. At the moment, the process that the second jig is installed on the first jig can be guided through the guide cooperation effect of the first guide piece and the first guide hole as well as the guide cooperation effect of the second guide piece and the second guide hole, so that the accurate alignment installation of the second jig and the first jig is ensured, and the accurate abutting limiting of the abutting piece of the subsequent abutting assembly is carried out on the electronic component on the substrate of the circuit board. Further, the first guide piece and the second guide piece of the auxiliary tin positioning jig on the circuit board in the scheme are different in structure and are respectively matched with the first guide hole and the second guide hole. At this moment, when the assembling personnel install the second jig on the first jig, the accuracy of the installation direction of the second jig can be identified through the adaptive corresponding relation between the first guide piece and the second guide piece and between the first guide hole and the second guide hole respectively. I.e. the process is repeated. Play through the first guide that the structure is inequality and prevent slow-witted effect with the second guide to be favorable to the fast and accurate installation of assembly personnel with the second tool on first tool.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, 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 according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of an assembly structure of an embodiment of the auxiliary fixture for positioning tin on a circuit board of the present invention;

FIG. 2 is a schematic view of an exploded structure of the auxiliary fixture for positioning tin on the circuit board in FIG. 1;

FIG. 3 is another schematic view of the exploded structure of the auxiliary fixture for positioning tin on the circuit board in FIG. 1;

FIG. 4 is a schematic structural view of the abutting assembly of the auxiliary tin positioning jig for circuit boards of the present invention;

FIG. 5 is an exploded view of the abutting assembly of the auxiliary fixture for positioning tin on the circuit board shown in FIG. 4;

FIG. 6 is a schematic structural view of a locking assembly of the auxiliary tin positioning jig for circuit boards of the present invention;

fig. 7 is an illustration of the explosion structure of the locking assembly of the auxiliary tin positioning fixture for circuit boards of the present invention.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a tin location auxiliary fixture on circuit board.

Referring to fig. 1, fig. 2 and fig. 3, in an embodiment of the present invention, the auxiliary fixture for positioning tin on a circuit board includes a first fixture 10 and a second fixture 30; wherein, the first fixture 10 is formed with a circuit board carrying surface 11; the second jig 30 is detachably connected to the first jig 10 and is arranged opposite to the circuit board bearing surface 11, the second jig 30 is provided with an abutting assembly 31, the abutting assembly 31 comprises an abutting column 311 and a first elastic piece 317, the abutting column 311 is arranged on the surface, facing the circuit board bearing surface 11, of the second jig 30 and can move along the direction facing to and departing from the circuit board bearing surface 11 relative to the second jig 30, and the first elastic piece 317 is connected to the second jig 30 and the abutting column 311; the second jig 30 is further provided with a first guide member 33 and a second guide member 35, the first guide member 33 and the second guide member 35 have different structures, and the first jig 10 is further formed with a first guide hole 13 and a second guide hole 15 through which the first guide member 33 and the second guide member 35 are respectively inserted.

In an embodiment of the present invention, the first fixture 10 may be used to form a circuit board carrying surface 11 to contact with a substrate of a circuit board for carrying the circuit board. The first fixture 10 may be a substantially flat plate structure, and a circuit board carrying surface 11 is formed on one surface of the first fixture, so that the first fixture 10 is relatively light in weight and is convenient to be transported into the solder furnace as a whole along with the circuit board after the electronic components of the circuit board are limited. The first fixture 10 may have a rectangular or square shape, so that the shape is regular and the first fixture is easy to mold and manufacture, and the first fixture can be adapted to the general shape of the circuit board so that the first fixture can be set to be relatively small. Of course, the present application is not limited thereto, and in other embodiments, the first fixture 10 may also be a block-shaped structure with a relatively thick thickness, and the shape may also be a circle, a triangle, or other shapes. In addition, the first fixture 10 may further have a tin passing hole 12 penetrating the first fixture 10 to form a circuit board carrying surface 11 and deviating from the circuit board carrying surface 11, so that when the circuit board tin-feeding positioning auxiliary fixture is transported into the tin furnace as a whole after the circuit board tin-feeding positioning auxiliary fixture is clamped and mounted with the circuit, the tin furnace performs tin feeding on the circuit board mounted in the circuit board tin-feeding positioning auxiliary fixture for clamping through the tin passing hole 12. Furthermore, in order to facilitate the circuit board to be accurately disposed on the circuit board carrying surface 11, the circuit board carrying surface 11 may be provided with a protruding pillar, and at this time, the substrate of the circuit board may be provided with a through hole corresponding to the protruding pillar, so that the circuit board is accurately disposed on the circuit board carrying surface 11 by the matching and positioning of the protruding pillar and the through hole. Of course, the present application is not limited thereto, and in other embodiments, the circuit board carrying surface 11 may be recessed to form a receiving groove adapted to the shape of the substrate of the circuit board. At this time, when the substrate of the circuit board is accommodated in the accommodating groove, the circuit board is accurately arranged on the circuit board bearing surface 11 by abutting and positioning the groove wall of the accommodating groove. The second jig 30 can be used for connecting to the first jig 10, and is mounted with an abutment assembly 31. The second fixture 30 is detachably connected to the first fixture 10, so that the second fixture 30 can be taken down from the circuit board when the circuit board is clamped and mounted, and the second fixture 30 is mounted after the circuit board is arranged on the circuit board bearing surface 11 of the first fixture 10. After the circuit board is soldered, the second jig 30 is taken off from the first jig 10 to take out the circuit board. The second fixture 30 may also be a substantially flat plate structure, so that the second fixture 30 is relatively light in weight, which is beneficial to reducing the overall weight of the auxiliary fixture for positioning tin on the circuit board. The second jig 30 may be shaped like the first jig 10 to have a rectangular or square shape. The abutting column 311 of the abutting assembly 31 can be used for abutting against an electronic component (for example, the electronic component can be a USB interface, a Type-c interface, or a power module) on the substrate of the circuit board between the first jig 10 and the second jig 30 under the action of the deformation elastic force of the first elastic member 317. The first elastic member 317 may be used to provide power to make the abutment column 311 receive a force facing the circuit board carrying surface 11. The first elastic member 317 may be a spring or a plastic member with certain elasticity. The first guide member 33 may be inserted into the first guide hole 13 fitted thereto, and the second guide member 35 may be inserted into the second guide hole 15 fitted thereto. By the cooperation of the first guide 33 and the first guide hole 13 and the cooperation of the second guide 35 and the second guide hole 15, the second jig 30 can be guided and aligned when being mounted on the first jig 10. Meanwhile, the structures of the first guiding element 33 and the second guiding element 35 are different, so that the two guiding elements are different from each other, and an assembling worker can conveniently and quickly determine the installation direction of the second jig 30 when installing the second jig 30 on the first jig 10.

The utility model discloses a technical scheme's supplementary tool of tin location on circuit board can settle the base plate of circuit board on the circuit board loading end 11 of first tool 10 earlier when using, later installs second tool 30 on first tool 10. Because the second fixture 30 is provided with the abutting assembly 31, the abutting column 311 of the abutting assembly 31 abuts against and is pushed by the electronic component on the substrate in the circuit board in the process of connecting the second fixture 30 to the first fixture 10. At this time, the first elastic member 317 of the abutting assembly 31 is compressed and generates elastic force, and the abutting column 311 can be driven to abut against the surface of the electronic component departing from the substrate through the elastic force, so that the electronic component is limited and fixed on the substrate, and the limitation on the electronic component is realized. Compared with the prior art that the circuit board is not provided with a limiting structure to pre-fix the relative position relation between the substrate and the electronic component before entering the tin furnace, the auxiliary fixture for tin feeding of the circuit board can limit the electronic component on the substrate of the circuit board, namely pre-fix the relative position relation between the substrate and the electronic component, and then the circuit board can be conveyed as a whole in the tin furnace to complete tin feeding of the circuit board. At the moment, the possibility that the circuit board shakes in the conveying process of the circuit board through the tin furnace to enable the electronic components to move relatively on the substrate is reduced, and therefore the final mounting effect of the electronic components on the substrate is guaranteed.

In addition, the second jig 30 of the auxiliary jig for positioning tin on the circuit board in the present embodiment is further provided with a first guiding member 33 and a second guiding member 35, and the first jig 10 is formed with a first guiding hole 13 and a second guiding hole 15 for the first guiding member 33 and the second guiding member 35 to be inserted respectively. At this time, the process of installing the second jig 30 in the first jig 10 can be guided by the guiding cooperation of the first guide member 33 and the first guide hole 13 and the second guide member 35 and the second guide hole 15, so that the accurate alignment installation of the second jig 30 and the first jig 10 is ensured, and the accurate abutting and limiting of the abutting member of the subsequent abutting assembly 31 on the electronic component on the substrate of the circuit board is facilitated. Further, the structures of the first guide part 33 and the second guide part 35 of the auxiliary tin positioning jig for the circuit board in the scheme are different and are respectively matched with the first guide hole 13 and the second guide hole 15. At this time, when the assembling person installs the second jig 30 on the first jig 10, the accuracy of the installation direction of the second jig 30 can be recognized through the fitting corresponding relationship between the first guide 33 and the second guide 35 and the first guide hole 13 and the second guide hole 15, respectively. I.e. the process is repeated. Play the foolproof effect through the first guide 33 and the second guide 35 that the structure is inequality to be favorable to the assembly personnel to install second tool 30 on first tool 10 fast and accurately.

Referring to fig. 3 and 4, in an embodiment of the present invention, the surface of the second fixture 30 facing the circuit board carrying surface 11 is further provided with a fixing post 37, and the fixing post 37 extends along a direction facing the circuit board carrying surface 11; the abutting column 311 is movably sleeved at one end of the fixing column 37 facing the circuit board bearing surface 11; the first elastic member 317 is sleeved on the fixing post 37, and defines that the first elastic member 317 has two opposite ends, and the two opposite ends of the first elastic member 317 elastically abut against the abutting post 311 and the first fixture 10 respectively.

It can be understood that the abutting columns 311 are movably disposed at one end of the fixing column 37 facing the circuit board carrying surface 11, so that the moving connection of the abutting columns 311 is relatively close to the circuit board carrying surface 11. That is, the distance between the abutting end of the abutting column 311 and the movable connection position thereof is relatively small, and the length of the abutting column 311 can be set relatively small, so that the possibility that the abutting column 311 is bent in the abutting process can be reduced, and the abutting column 311 is guaranteed to have certain strength and can be stably abutted to the electronic component on the substrate of the circuit board. The first elastic member 317 is directly sleeved outside the fixing post 37, and both ends of the first elastic member are only elastically abutted against the abutting post 311 and the second fixture 30. This eliminates the need for a complicated structure for connecting the first elastic member 317, thereby improving the convenience of mounting the first elastic member 317. Meanwhile, the fixing post 37 can also guide the force application direction of the first elastic member 317, so that the first elastic member 317 can only apply force to the abutting post 311 along the extension direction of the fixing post 37 to accurately abut the electronic component on the substrate of the circuit board. It should be understood that, the present application is not limited thereto, and in other embodiments, the abutting column 311 may be directly slidably inserted into the second fixture 30, or one end of the first elastic member 317 is connected to the second fixture 30, and the abutting column 311 is directly connected to the other end of the first elastic member 317.

Referring to fig. 4 and 5, in an embodiment of the present invention, an insertion hole 312 is disposed in the abutting column 311, the insertion hole 312 extends along the moving direction of the abutting column 311 and penetrates through the surface of the abutting column 311 facing the second fixture 30, and a position of an inner wall surface of the insertion hole 312 near the hole opening is protruded with a limiting portion 313; one end of the fixing post 37 facing the circuit board bearing surface 11 is inserted into the insertion hole 312, a stopping portion 371 is convexly disposed on a side peripheral surface of the fixing post 37 inserted into the insertion hole 312, and a surface of the stopping portion 371 departing from the hole bottom wall of the insertion hole 312 abuts against a surface of the limiting portion 313 facing the hole bottom wall of the insertion hole 312.

It can be understood that the fixing post 37 and the abutting post 311 are prevented from being disengaged by forming a limiting portion 313 in the insertion hole 312, which is matched with the stopping portion 371 on the fixing post 37 for limiting. The stopper portions 371 can be made more compact on the abutment columns 311, respectively, reducing the space occupation thereof. Meanwhile, the abutment between the first elastic member 317 and the abutment post 311 is not affected. The stopping portion 371 and the limiting portion 313 may be in a ring shape, so that the abutting and limiting effect is provided at each position in the circumferential direction of the abutting column 311, and the possibility of the fixed column 37 and the abutting column 311 being separated is further reduced. In addition, it should be noted that, the present application is not limited thereto, and in other embodiments, the limit for the abutting column 311 may be that one end of the abutting column 311 facing the first elastic member 317 is directly connected to the first elastic member 317.

Referring to fig. 4 and 5, in an embodiment of the present invention, the limiting portion 313 includes a plurality of rib sections 314, the plurality of rib sections 314 are disposed around the side circumference of the insertion hole 312 at intervals, and the surfaces of the plurality of rib sections 314 facing the hole bottom wall of the insertion hole 312 are all abutted against the surface of the stopping portion 371 deviating from the hole bottom wall of the insertion hole 312; the abutting column 311 is provided with a deformation groove 315 between each two adjacent rib sections 314, and the deformation groove 315 penetrates through the inner side wall of the abutting column 311, the outer side wall of the abutting column 311 and the surface of the abutting column 311 on which the hole of the insertion hole 312 is formed.

It can be understood that when the end of the fixing post 37 provided with the stopping portion 371 is inserted into the insertion hole 312 of the abutting post 311, the end of the abutting post 311 formed with the aperture of the insertion hole 312 is pressed by the stopping portion 371. At this time, the abutment post 311 is deformed toward the outside by the deformation groove 315, thereby facilitating the insertion of the fixing post 37. After the fixing post 37 is inserted, the abutting post 311 can be restored to its original shape toward the inner side through the deformation groove 315, so that the plurality of rib sections 314 are abutted to the surface of the bottom wall of the hole of the stopping portion 371 departing from the insertion hole 312. Of course, in other embodiments, in order to facilitate inserting the fixing post 37 into the abutting post 311, the abutting post 311 may be divided into a left post and a right post, and the inserting hole 312 is formed by the left post and the right post which are separated. When the abutting column 311 is made of silicone or rubber, the stopper 371 may be an annular integral structure, that is, arranged around the circumference of the insertion hole 312, because the abutting column 311 has certain elasticity.

Referring to fig. 4 and 5, in an embodiment of the present invention, the stopping portion 371 is a nut 373 sleeved on one end of the fixing post 37 inserted into the insertion hole 312, and the nut 373 is in threaded connection with the fixing post 37.

It is understood that the stop portion 371 is formed by the nut 373, so that the stop portion 371 can be purchased directly from the market without being formed on the fixing post 37 to form the stop portion 371. In this case, the fixing post 37 may be a screw passing through the second fixture 30, that is, a screw rod of the screw passes through the second fixture 30 along a direction facing the first fixture 10, and the nut 373 is directly screwed on the screw rod of the screw. Simultaneously, so set up and also make jack 312 on the butt post 311 correspond the shape that sets up to with nut 373 looks adaptation, have limiting displacement and can avoid butt post 311 and fixed column 37 to take place relative rotation this moment in week to it is spacing to be favorable to further that butt post 311 carries out stable butt to electronic components on the base plate of circuit board. It should be noted that the present application is not limited thereto, and in other embodiments, the stopping portion 371 may be formed by welding directly on the fixing post 37, or formed by machining on the fixing post 37 by machining, such as turning. The fixing posts 37 may be welded to the second jig 30, or may be integrated with the second jig 30.

Referring to fig. 1 and fig. 2, in an embodiment of the present invention, the surface of the second fixture 30 facing the circuit board carrying surface 11 is further provided with a square column 331, the square column 331 extends along a direction toward the first fixture 10, and the square column 331 is formed as a first guiding member 33; the surface of the second fixture 30 facing the circuit board carrying surface 11 is further provided with a circular column 351, the circular column 351 extends in a direction towards the first fixture 10, and the circular column 351 is formed as a second guide 35. At this time, the first guide hole 13 is formed as a square hole corresponding to the square column, and the second guide hole 15 is formed as a circular hole corresponding to the second guide 35.

It can be understood that the first guide 33 formed by the square column 331 and the second guide 35 formed by the circular column 351 are different in shape and can be easily recognized by the assembling personnel, so that whether the mounting direction of the second jig 30 is accurate can be quickly judged. Meanwhile, the arrangement also makes the structures of the first guide part 33 and the second guide part 35 relatively simple, so that the convenience of processing and forming the first guide part 33 and the second guide part 35 can be improved. Of course, the present application is not limited thereto, and in other embodiments, the first guide 33 and the second guide 35 may have other shapes, for example, the first guide 33 may have a triangular shape, and the second guide 35 may have an elliptical shape, that is, the shapes of the first guide 33 and the second guide 35 are different and can be distinguished. Alternatively, in an embodiment, the first guide member 33 and the second guide member 35 have the same shape, but the heights may be set differently, and in this case, the depths of the first guide hole 13 and the second guide hole 15 may also be set differently.

Referring to fig. 1 and fig. 2, in an embodiment of the present invention, the second fixture 30 is defined to have four corner regions, and the square column 331 and the circular column 351 are respectively located in two corner regions of the second fixture 30 that are diagonally disposed.

It can be understood that the square column 331 and the circular column 351 are diagonally arranged on the second fixture 30, so that the distribution of the square column 331 and the circular column 351 is relatively uniform, and therefore uniform guiding can be performed on the second fixture 30 in the circumferential direction to improve the guiding effect. Of course, the present invention is not limited thereto, and in other embodiments, the square column 331 and the circular column 351 may be respectively located at two adjacent corner regions, or located on the same side of the second fixture 30.

Referring to fig. 1, fig. 2, fig. 6 and fig. 7, in an embodiment of the present invention, the first fixture 10 further has a clamping groove 17; the second jig 30 is further provided with a locking assembly 39, the locking assembly 39 includes a clamping member 391 and a second elastic member 393, the clamping member 391 is movably connected to the second jig 30, the second elastic member 393 is connected to the clamping member 391 and the second jig 30, and drives the clamping member 391 to move relative to the second jig 30 and to be clamped in the clamping groove 17, so that the second jig 30 is detachably connected to the first jig 10.

It can be understood that the second jig 30 and the first jig 10 are connected by the clamping member 391 and the clamping groove 17, so that after the second jig 30 is sleeved on the first jig 10, the clamping member 391 is driven by the second elastic member 393 to be close to the clamping groove 17, and the automatic connection between the second jig 30 and the first jig 10 can be realized. Then, the clamping member 391 is driven by external force to overcome the elastic force of the second elastic member 393 and be separated from the clamping groove 17, so that the second fixture 30 and the first fixture 10 can be detached. Therefore, the disassembling and assembling processes of the second jig 30 and the first jig 10 are simple, and the convenience of disassembling and assembling the second jig 30 and the first jig 10 is improved. Of course, the present application is not limited thereto, and in other implementations, the second fixture 30 and the first fixture 10 may be connected by screws or fixed by magnetic attraction (i.e. the second fixture 30 and the first fixture 10 are embedded with magnetic blocks that attract each other).

Referring to fig. 6 and 7, in an embodiment of the present invention, the clip member 391 has a protruding shaft, the second fixture 30 has a rotating hole at a position corresponding to the shaft, and the shaft is inserted into the rotating hole; the second elastic member 393 is a torsion spring, the torsion spring includes a main body 395 and two torsion arms 397 connected to two opposite ends of the main body 395, the main body 395 is sleeved on the rotation shaft, the two torsion arms 397 are respectively connected to the second fixture 30 and the clamping member 391, and the torsion spring drives the clamping member 391 to rotate relative to the second fixture 30 and to approach the clamping groove 17.

It can be understood that the joint member 391 is rotatably disposed on the second fixture 30, so that the moving track of the joint member 391 is circular, and the position variation of the joint member 391 in the horizontal direction (when the auxiliary fixture for positioning tin on the circuit board is in a normal use state, the second fixture 30 is located above the first fixture 10, and both are horizontally disposed) is relatively small, and the occupation of the space is reduced. And adopt the torsional spring as second elastic component 393 to drive joint spare 391 and rotate for the torsional spring is tangent to the rotation direction that the effort was applyed to joint spare 391, can guarantee this torsional spring deformation elasticity this moment and can carry out comparatively abundant effect and improve the drive power to joint spare 391, and then guarantee that joint spare 391 can be stable joint in joint groove 17. Certainly, the present application is not limited thereto, in other embodiments, when the clamping member 391 is slidably disposed on the second fixture 30 along the horizontal direction, the second elastic member 393 may be a spring or other plastic member with certain elasticity, and at this time, two ends of the spring or other plastic member with certain elasticity are respectively connected to the clamping member 391 and the second fixture 30, and can drive the clamping member 391 to horizontally slide along the direction close to the clamping groove 17 to be inserted into the clamping groove 17.

Referring to fig. 1 and 2, in an embodiment of the present invention, the first fixture 10 further includes a clamping block 19, the clamping block 19 is detachably connected to the circuit board carrying surface 11 of the first fixture 10, the clamping block 19 has a groove penetrating through a side wall surface thereof and a surface facing the circuit board carrying surface 11, and the groove and the circuit board carrying surface 11 enclose to form a clamping groove 17.

It can be understood that the clamping groove 17 is formed by enclosing the clamping block 19 and the first jig 10, so that the clamping block and the first jig can be assembled together to form the clamping groove 17 after the independent manufacture is completed, and the complexity of machining and forming the clamping groove 17 is simplified. The detachable connection of the clamping block 19 enables the clamping block to be detached from the first fixture 10 for replacement when the clamping block is damaged due to large abrasion. This prevents the clamping block 19 from partially needing to be replaced with the first jig 10 when damaged, thereby reducing the replacement cost. Wherein, joint piece 19 and first tool 10 can be through screw connection, buckle connection or magnetism inhale fixedly (promptly joint piece 19 and first tool 10 inlay the magnetic path that is equipped with inter attraction) etc. to improve the convenience that both dismantled. In addition, the present invention is not limited to this, and in other embodiments, the engaging groove 17 may be formed directly on the side circumferential surface of the first jig 10.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a supplementary tool of tin location on circuit board which characterized in that includes:

the first jig is provided with a circuit board bearing surface; and

the second jig is detachably connected to the first jig and is arranged opposite to the bearing surface of the circuit board, the second jig is provided with a butting component, the butting component comprises a butting column and a first elastic piece, the butting column is arranged on the surface, facing the bearing surface of the circuit board, of the second jig and can move along the direction facing to and departing from the bearing surface of the circuit board relative to the second jig, and the first elastic piece is connected to the second jig and the butting column; the second jig is further provided with a first guide piece and a second guide piece, the structures of the first guide piece and the second guide piece are different, and the first jig is further provided with a first guide hole and a second guide hole which are respectively used for the first guide piece and the second guide piece to be inserted.

2. The auxiliary fixture for positioning tin on a circuit board according to claim 1, wherein a fixing post is further disposed on a surface of the second fixture facing the circuit board carrying surface, the fixing post extending along a direction facing the circuit board carrying surface;

3. The auxiliary fixture for positioning tin on a circuit board according to claim 2, wherein a jack is provided in the abutting column, the jack extends along the moving direction of the abutting column and penetrates through the surface of the abutting column facing the second fixture, and a limiting portion is convexly provided on the inner wall surface of the jack at a position close to the orifice of the jack;

4. The auxiliary tin positioning jig for circuit boards as claimed in claim 3, wherein the limiting portion comprises a plurality of rib sections, the plurality of rib sections are disposed around the side circumference of the insertion hole at intervals, and the surfaces of the plurality of rib sections facing the bottom wall of the insertion hole are abutted against the surface of the stopping portion away from the bottom wall of the insertion hole;

5. The auxiliary fixture for positioning tin on circuit board according to claim 3, wherein the stopping portion is a nut sleeved on one end of the fixing post inserted into the insertion hole, and the nut is in threaded connection with the fixing post.

6. The auxiliary tool for positioning tin on a circuit board according to any one of claims 1 to 5, wherein a surface of the second tool facing the circuit board carrying surface is further provided with a square column, the square column extends in a direction towards the first tool, and the square column becomes the first guide;

7. The fixture for assisting positioning of tin on a circuit board according to claim 6, wherein the second fixture is defined to have four corner regions, and the square pillar and the circular pillar are respectively located at two corner regions of the second fixture which are diagonally arranged.

8. The auxiliary fixture for positioning tin on a circuit board according to any one of claims 1 to 5, wherein the first fixture is further formed with a clamping groove;

9. The auxiliary fixture for positioning tin on circuit board according to claim 8, wherein the engaging member is protruded with a rotating shaft, the second fixture is provided with a rotating hole at a position corresponding to the rotating shaft, and the rotating shaft is inserted into the rotating hole;

10. The auxiliary fixture for positioning tin on circuit board according to claim 8, wherein the first fixture further comprises a clamping block detachably connected to the circuit board carrying surface of the first fixture, the clamping block comprises a groove penetrating through a sidewall surface thereof and a surface facing the circuit board carrying surface, and the groove and the circuit board carrying surface are enclosed to form the clamping groove.