CN215735052U

CN215735052U - Printed circuit board jig and jig assembly

Info

Publication number: CN215735052U
Application number: CN202121889653.1U
Authority: CN
Inventors: 郑磊珏; 王志兵; 裘荣波; 张淑亭; 平定钢
Original assignee: Zhejiang Fute Technology Co ltd
Current assignee: Zhejiang Fute Technology Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-02-01
Anticipated expiration: 2031-08-12

Abstract

The utility model provides a printed circuit board jig and a jig assembly, and relates to the technical field of tool jigs, wherein the printed circuit board jig comprises: the clamping groove extending along the first direction is arranged on the side wall of the body between the first end face and the second end face; in the first direction, the length of the clamping groove is smaller than the distance between the first end face and the second end face, and one end of the clamping groove is communicated with the first end face.

Description

Printed circuit board jig and jig assembly

Technical Field

The utility model relates to the technical field of tool fixtures, in particular to a printed circuit board fixture and a fixture assembly.

Background

A Printed Circuit Board (PCBA) is manufactured by mounting an SMT (surface mount technology) piece on a PCB blank board and then passing through a DIP (dual in-line package) piece. The PCBA typically has heavier electronic components, such as inductors, transformers, etc., soldered to it after the DIP package. This can lead to distortion of the PCB board during subsequent testing and transport of the large size PCBA after the DIP insert, which is typically over 400mm x 300mm, if the PCBA is not uniform in weight. The PCBA who takes place deformation can produce great stress, can lead to the tiny pin fracture of paster device on the PCBA, and the body is damaged even, finally leads to the product function to become invalid.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a printed circuit board jig and a jig assembly, which are used for relieving the technical problem that a PCB is deformed in the testing and transferring processes of the conventional large-size PCBA.

In a first aspect, an embodiment of the present invention provides a printed circuit board fixture, including: the clamping groove extending along the first direction is arranged on the side wall of the body between the first end face and the second end face; in the first direction, the length of the clamping groove is smaller than the distance between the first end face and the second end face, and one end of the clamping groove is communicated with the first end face.

Furthermore, a guide structure is arranged at an opening of the clamping groove and used for guiding the printed circuit board to be introduced into the clamping groove.

Furthermore, the guide structure comprises two guide inclined planes which are respectively positioned on two opposite side walls in the width direction of the clamping groove, and the distance between the two guide inclined planes is gradually reduced along the direction from the opening of the clamping groove to the bottom.

Furthermore, a convex strip protruding towards the direction back to the clamping groove is arranged on the other surface of the body, which is opposite to the surface where the clamping groove is arranged, and the convex strip extends along the first direction; the convex strip comprises a connecting part and a limiting part, one end of the connecting part is connected with the body, the other end of the connecting part is connected with the limiting part, gaps are formed between the two ends of the limiting part and the body, and a limiting groove is formed in each gap;

the printed circuit board jig further comprises a reinforcing rib wrapped on the outer side of the raised line, the reinforcing rib comprises a mounting groove extending along a first direction, limiting edges protruding towards the direction of the mounting groove are arranged on two opposite side walls of an opening of the mounting groove, and a containing cavity is formed in a space between the limiting edges and the bottom surface of the mounting groove;

the limiting part is located in the accommodating cavity, and the limiting edge is located in the limiting groove.

Furthermore, the cross section of each convex strip is in a T shape.

Further, the material of the body is bakelite.

Further, the material of the reinforcing rib is metal.

Furthermore, an avoiding groove for avoiding a device at a preset position on the printed circuit board is arranged on the side wall of the clamping groove.

In a second aspect, an embodiment of the utility model provides a jig assembly, which includes the above-mentioned pcb jig, and a storage box for accommodating the pcb jig.

Furthermore, a plurality of placing sheets perpendicular to the bottom surface are arranged on the bottom surface of the storage box, and the thickness of each placing sheet is consistent with the width of the clamping groove in the body;

the plurality of placing pieces are arranged in parallel at intervals, and the distance between the surfaces of two adjacent placing pieces close to each other is equal to twice of the thickness of the groove wall of the clamping groove;

and the distance between the mounting piece closest to the box wall of the storage box and the box wall closest to the mounting piece is equal to the thickness of the groove wall of the clamping groove.

The printed circuit board fixture provided by the embodiment of the utility model comprises: the clamping groove extending along the first direction is arranged on the side wall of the body between the first end face and the second end face; in the first direction, the length of the clamping groove is smaller than the distance between the first end face and the second end face, and one end of the clamping groove is communicated with the first end face. The draw-in groove is used for the flange limit of centre gripping printed circuit board, and the cell wall of draw-in groove can prevent that printed circuit board is crooked to, because on the first direction, the length of draw-in groove is less than distance between first terminal surface to the second terminal surface, just the one end and the first terminal surface intercommunication of draw-in groove, the one end of draw-in groove are confined, on the one hand, can be used for the location to the printed circuit board flange limit, and on the other hand can increase draw-in groove intensity, avoids the draw-in groove both sides wall to be strutted and leads to the distance increase.

The jig assembly provided by the embodiment of the utility model comprises the printed circuit board jig and a storage box for containing the printed circuit board jig. Because the jig assembly provided by the embodiment of the utility model introduces the printed circuit board jig, the jig assembly provided by the embodiment of the utility model also has the advantages of the printed circuit board jig.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic view of a first end surface of a body of a printed circuit board fixture according to an embodiment of the utility model;

fig. 2 is a schematic view of a reinforcing rib of a printed circuit board fixture according to an embodiment of the utility model;

fig. 3 is a schematic view of a printed circuit board fixture according to an embodiment of the utility model;

fig. 4 is a schematic view of a printed circuit board fixture according to an embodiment of the utility model;

FIG. 5 is a schematic view of a fixture assembly according to an embodiment of the present invention;

fig. 6 is a schematic view of a storage box of a jig assembly according to an embodiment of the present invention.

Icon: 100-body; 110-avoidance slots; 200-card slot; 300-a guide slope; 410-a connecting portion; 420-a limiting part; 500-reinforcing ribs; 510-a limit edge; 600-a storage box; 610-placing the sheet.

Detailed Description

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

As shown in fig. 1 to 4, a printed circuit board fixture provided by an embodiment of the utility model includes: body 100, body 100 are the strip, body 100 includes along first direction interval sets up first terminal surface and second terminal surface, and first terminal surface can be the left end face, and the second terminal surface can be the right-hand member face, be provided with the draw-in groove 200 that extends along first direction on the body 100 on the lateral wall that lies in between first terminal surface and the second terminal surface, wherein the face at draw-in groove 200 place can be the leading flank of body 100.

In the first direction, the length of the card slot 200 is smaller than the distance between the first end face and the second end face, one end of the card slot 200 is communicated with the first end face, and a gap is formed between the other end of the card slot 200 and the right end face, so that the card slot is closed. The clamping groove 200 is used for clamping the edge of the printed circuit board, the groove wall of the clamping groove 200 can prevent the printed circuit board from being bent, and because in the first direction, the length of the clamping groove 200 is smaller than the distance between the first end face and the second end face, one end of the clamping groove 200 is communicated with the first end face, one end of the clamping groove 200 is closed, on one hand, the clamping groove 200 can be used for positioning the edge of the printed circuit board, on the other hand, the strength of the clamping groove 200 can be increased, and the phenomenon that the distance between the two side walls of the clamping groove 200 is increased due to the fact that the two side walls of the clamping groove are spread is avoided.

In order to facilitate the insertion of the card slot 200 into the board edge, a guide structure is disposed at the opening of the card slot 200, and the guide structure is used for guiding the printed circuit board to be introduced into the card slot 200.

Specifically, guide structure is including being located two direction inclined planes 300 on the relative both sides wall on draw-in groove 200 width direction respectively, and two direction inclined planes 300 are the loudspeaker form, follow the opening of draw-in groove 200 is towards the direction of bottom, two distance between the direction inclined plane 300 reduces gradually, with the draw-in groove 200 opening alignment flange back of tool, two direction inclined planes 300 great positions of interval contact with the flange earlier, can enter into draw-in groove 200 with the flange guide in.

The other side of the body 100 opposite to the side where the slot 200 is located, that is, the back side of the body, is provided with a protruding strip protruding in a direction back to the direction where the slot 200 is located, that is, in the front direction, and the protruding strip extends in a first direction; the sand grip includes connecting portion 410 and spacing portion 420, and the shape of the cross section of sand grip can be "T" type, connecting portion 410's one end is connected with body 100, and the other end is connected with spacing portion 420, spacing portion 420's both ends with all have the clearance between the body 100, the clearance forms the spacing groove. The printed circuit board jig further comprises a reinforcing rib 500 wrapped on the outer side of the raised line, the body can be made of bakelite, the reinforcing rib 500 can be made of metal such as aluminum, the reinforcing rib 500 comprises a mounting groove extending along a first direction, two opposite side walls at an opening of the mounting groove are respectively provided with a limiting edge 510 protruding towards the direction of the mounting groove, and a space between the limiting edge 510 and the bottom surface of the mounting groove forms an accommodating cavity; spacing portion 420 is located hold the cavity, spacing border 510 is located the spacing inslot, reinforcing rib strip 500 parcel is in the outside of sand grip to, spacing border 510 is located the spacing inslot, and reinforcing rib strip 500 can increase the intensity and the rigidity of body.

The side wall of the card slot 200 is provided with an avoiding groove 110 for avoiding a device at a preset position on the printed circuit board, and the avoiding groove 110 is arranged according to the position of the device on the pre-clamping circuit board.

When the jig is used, two, three or four jigs can be used for clamping the plate edge of a rectangular circuit board.

As shown in fig. 5 and 6, the jig assembly according to the embodiment of the present invention includes the above-mentioned pcb jig, and a receiving box 600 for receiving the pcb jig. Because the jig assembly provided by the embodiment of the utility model introduces the printed circuit board jig, the jig assembly provided by the embodiment of the utility model also has the advantages of the printed circuit board jig.

A plurality of placing sheets 610 perpendicular to the bottom surface are arranged on the bottom surface of the storage box 600, and the thickness of the placing sheets 610 is consistent with the width of the clamping grooves 200 on the body; the plurality of placing pieces 610 are arranged in parallel and at intervals, and the distance between the surfaces of two adjacent placing pieces 610 close to each other is equal to twice the thickness of the groove wall of the clamping groove 200; and the distance between the seating piece 610 closest to the case wall of the storage case 600 and the closest case wall thereof is equal to the thickness of the groove wall of the catching groove 200.

Can insert the tool and settle piece 610 on, when the transportation with accomodate the tool, settle piece 610 and can prevent that the opening of draw-in groove 200 from reducing, and the mutual butt of lateral wall of the draw-in groove 200 of two adjacent tools can prevent the opening increase of draw-in groove 200 again to reduce the influence of environment to fluting opening size on the tool.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A printed circuit board jig, comprising: the clamping device comprises a body (100), wherein the body (100) comprises a first end face and a second end face which are arranged at intervals along a first direction, and clamping grooves (200) extending along the first direction are formed in the side wall of the body (100) between the first end face and the second end face; in the first direction, the length of the clamping groove (200) is smaller than the distance between the first end face and the second end face, and one end of the clamping groove (200) is communicated with the first end face.

2. The PCB jig of claim 1, wherein a guiding structure is arranged at the opening of the card slot (200) and used for guiding a PCB to be introduced into the card slot (200).

3. The jig for printed circuit boards as claimed in claim 2, wherein the guiding structure comprises two guiding slopes (300) respectively located on two opposite side walls in the width direction of the card slot (200), and the distance between the two guiding slopes (300) is gradually reduced along the direction from the opening of the card slot (200) to the bottom.

4. The jig for the printed circuit board as claimed in claim 1, wherein a protruding strip protruding in a direction away from the direction of the slot (200) is provided on the other surface of the body (100) opposite to the surface of the slot (200), the protruding strip extending in a first direction; the convex strip comprises a connecting part (410) and a limiting part (420), one end of the connecting part (410) is connected with the body (100), the other end of the connecting part is connected with the limiting part (420), gaps are formed between two ends of the limiting part (420) and the body (100), and limiting grooves are formed in the gaps;

the printed circuit board jig further comprises a reinforcing rib (500) wrapped on the outer side of the raised line, the reinforcing rib (500) comprises a mounting groove extending along a first direction, limiting edges (510) protruding towards the direction of the mounting groove are arranged on two opposite side walls of an opening of the mounting groove, and a containing cavity is formed in a space between the limiting edges (510) and the bottom surface of the mounting groove;

the limiting part (420) is located in the accommodating cavity, and the limiting edge (510) is located in the limiting groove.

5. The jig of claim 4, wherein the cross-section of the rib is T-shaped.

6. The PCB jig of claim 4, wherein the material of the body (100) is bakelite.

7. The PCB jig of claim 6, wherein the material of the reinforcing ribs (500) is metal.

8. The jig for printed circuit boards according to claim 1, wherein the side wall of the slot (200) is provided with an avoiding groove (110) for avoiding the device at the predetermined position on the printed circuit board.

9. A jig assembly characterized in that the jig assembly comprises a printed circuit board jig according to any one of claims 1 to 8, and a housing case (600) for housing the printed circuit board jig.

10. The jig assembly as claimed in claim 9, wherein a plurality of placing pieces (610) perpendicular to the bottom surface are arranged on the bottom surface of the storage box (600), and the thickness of the placing pieces (610) is consistent with the width of the clamping grooves (200) on the body (100);

the plurality of the placing sheets (610) are arranged in parallel at intervals, and the distance between the surfaces of two adjacent placing sheets (610) close to each other is equal to twice the thickness of the groove wall of the clamping groove (200);

and the distance between the placing sheet (610) closest to the box wall of the storage box (600) and the closest box wall is equal to the thickness of the groove wall of the clamping groove (200).