CN219799533U - PCBA test fixture - Google Patents

Abstract

The utility model provides a PCBA test fixture which comprises a base, a supporting component, an up-down adjusting mechanism and a compressing mechanism, wherein the base is provided with a plurality of clamping plates; the support component comprises a connecting plate, and the connecting plate is arranged on the base; the connecting plate is provided with a clearance gap and an installation position, and the clearance gap penetrates through the connecting plate along the direction from one surface of the connecting plate facing the base to one surface facing away from the base; the mounting position is arranged on one surface of the connecting plate, which is opposite to the base, and is arranged around the periphery of the avoidance space, the mounting position is provided with a bottom wall and a side wall, the bottom wall is connected with the connecting plate, and the side wall is arranged around the bottom wall; the bottom wall is provided with a groove, and the groove is positioned on one surface of the bottom wall, which is away from the base; the upper and lower adjusting mechanism is connected with the base and is positioned on the same side of the base with the connecting plate; the compressing mechanism is connected with the upper and lower adjusting mechanisms; through setting up the recess on the diapire for the protruding of PCBA can hold in the recess, has avoided hold-down mechanism extrusion PCBA, and bellied functional unit and connecting plate extrusion damage, have improved the yields of PCBA.

Description

PCBA test fixture

Technical Field

The utility model relates to the technical field of tool clamps, in particular to a PCBA test clamp.

Background

The PCBA is assembled with a printed circuit board, namely, the PCB blank is subjected to SMT and then subjected to the whole process of DIP plug-in, namely, PCBA is a common writing method in China, in the PCBA production and processing process, the PCBA is required to be subjected to corresponding test before leaving the factory so as to judge whether the PCBA is normal in function, and a burner is usually used for detecting the PCBA in cooperation with a test fixture.

Currently, as the patent of application number 201921691403.X, it discloses a test equipment mounting fixture for PCBA test, this patent technology includes the bottom plate, upper and lower adjustment mechanism and clamping mechanism, upper and lower adjustment mechanism is installed at the upper end rear portion of bottom plate, upper and lower adjustment mechanism includes the spout body, ball screw, screw bearing, screw sleeve and screw nut, the inside of the spout body is provided with ball screw, ball screw's bottom is rotated with the screw bearing of installing in spout body bottom and is connected, the screw sleeve of embedding in spout body top is passed to ball screw's top, and the adjusting hand wheel fixed connection of setting in spout body upper portion installs screw nut on the ball screw, screw nut's external fixation has the slider. This patent is through setting up upper and lower adjustment mechanism, adjustable clamping frame and reference column, has solved PCBA test fixture during operation, and the clamping mechanism of upper and lower adjustment mechanism control is difficult for controlling down the degree of pressure when pushing down, damages the problem of PCBA point easily. However, when the PCBA is placed on the bottom plate, the problem of mismatch exists, the bottom plate is a plate-shaped plane, and the PCBA test surface is provided with a raised functional unit, so that the PCBA and the bottom plate are easy to damage when being extruded by the clamping mechanism.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a PCBA test fixture.

The utility model discloses a PCBA test fixture, which comprises: the device comprises a base, a supporting component, an up-down adjusting mechanism and a compressing mechanism; the support component comprises a connecting plate, and the connecting plate is arranged on the base; the connecting plate is provided with a clearance gap and an installation position, and the clearance gap penetrates through the connecting plate along the direction from the connecting plate to the base; the mounting position is arranged on one surface of the connecting plate, which is opposite to the base, and is arranged around the periphery of the avoidance space, the mounting position is provided with a bottom wall and a side wall, the bottom wall is connected with the connecting plate, and the side wall is arranged around the bottom wall; the bottom wall is provided with a groove, and the groove is positioned on one surface of the bottom wall, which is away from the base; the upper and lower adjusting mechanism is connected with the base and is positioned on the same side of the base with the connecting plate; the compressing mechanism is connected with the upper and lower adjusting mechanism.

Preferably, the connection plate is detachably connected with the base.

Preferably, the support assembly further comprises an elastic member, one end of the elastic member is connected with the connecting plate, and the other end of the elastic member is connected with the base.

Preferably, the support assembly further comprises a connecting column, wherein the connecting column is in sliding connection with the base, one end of the connecting column is connected with the connecting plate, and the other end of the connecting column is connected with the base.

Preferably, the up-down adjusting mechanism comprises an adjusting frame, a connecting piece and a telescopic rod; the adjusting frame is arranged on the base, the connecting piece is fixedly arranged on the adjusting frame, one end of the telescopic rod is connected with the connecting piece, and the other end of the telescopic rod is connected with the compressing mechanism.

Preferably, the up-down adjusting mechanism further comprises a guide piece, wherein the guide piece is arranged in parallel with the telescopic rod, one end of the guide piece is connected with the base, and the other end of the guide piece is connected with the adjusting frame; the compressing mechanism is connected with the guide piece in a sliding way.

Preferably, the up-down adjusting mechanism further comprises a limiting piece, wherein the limiting piece is arranged on the adjusting frame and is connected with one end, far away from the base, of the guiding piece.

Preferably, the compressing mechanism comprises a compressing plate and a compression bar; the compacting plate is connected with the upper and lower adjusting mechanism, and the compression bar is located the compacting plate and faces the one side of supporting component.

Preferably, the base and/or the connection plate are made of an insulating material.

Preferably, the base is internally provided with a containing space.

The utility model has the beneficial effects that: through set up the installation position around connecting plate upper shed for place PCBA on the connecting plate and can keep stable, avoided PCBA to slide on the connecting plate, PCBA that causes when having avoided hold-down mechanism extrusion PCBA simultaneously slides, in addition, through setting up the recess on the diapire, make the arch of PCBA can hold in the recess, avoided hold-down mechanism extrusion PCBA, bellied functional unit damages with the connecting plate extrusion, has improved the yields of PCBA.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a perspective view of a PCBA test fixture in an embodiment;

FIG. 2 is a schematic view of a structure of a connecting plate according to an embodiment;

FIG. 3 is a front view of a PCBA test fixture in an embodiment;

FIG. 4 is a schematic view of a structure of a PCBA test fixture after hiding a portion of a base in an embodiment;

FIG. 5 is a second perspective view of a PCBA test fixture in an embodiment.

Reference numerals:

1-a base; 2-a support assembly; 3-an up-down adjusting mechanism; 4-a compressing mechanism;

11-accommodating space;

21-connecting plates; 22-connecting columns; 23-an elastic member;

31-an adjusting frame; 32-a connector; 33-a telescopic rod; 34-a guide; 35-limiting piece;

41-a compacting plate; 42-pressing rods;

211-avoidance of gaps; 212-mounting position;

2121-a bottom wall; 2122-sidewalls; 2123-grooves.

Detailed Description

Various embodiments of the utility model are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the utility model. That is, in some embodiments of the utility model, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.

It should be noted that all directional indications such as up, down, left, right, front, and rear … … in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture such as that shown in the drawings, and if the particular posture is changed, the directional indication is changed accordingly.

In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the utility model solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

For a further understanding of the present utility model, reference should be made to the following examples, which are set forth to illustrate, by way of illustration, the principles of the utility model.

Referring to fig. 1, fig. 1 is one of perspective views of a PCBA testing fixture, where the PCBA testing fixture in this embodiment includes a base 1, a supporting component 2, an up-down adjusting mechanism 3 and a compressing mechanism 4, the base 1 is used for carrying the supporting component 2, the up-down adjusting mechanism 3 and a burner, the up-down adjusting mechanism 3 is used for lifting the compressing mechanism 4, and the compressing mechanism 4 is used for fixing the PCBA on the supporting component 2.

Referring to fig. 2 and referring back to fig. 1, fig. 2 is a schematic structural diagram of a connection board, where the support assembly 2 includes a connection board 21, and the connection board 21 is disposed on the base 1; the connecting plate 21 is provided with a clearance gap 211 and an installation position 212, and the clearance gap 211 penetrates through the connecting plate 21 along the direction from the surface of the connecting plate 21 facing the base 1 to the surface facing away from the base 1; the mounting position 212 is arranged on one surface of the connecting plate 21, which is opposite to the base 1, and is arranged around the periphery of the avoidance space 211, the mounting position 212 is provided with a bottom wall 2121 and a side wall 2122, the bottom wall 2121 is connected with the connecting plate 21, and the side wall 2122 is arranged around the bottom wall 2121; the bottom wall 2121 has a groove 2123, and the groove 2123 is located on a side of the bottom wall 2121 facing away from the base 1; the upper and lower adjusting mechanism 3 is connected with the base 1 and is positioned on the same side of the base 1 with the connecting plate 21; the pressing mechanism 4 is connected with the up-down adjusting mechanism 3.

Specifically, when the connecting plate 21 is disposed above the base 1, the avoidance space 211 penetrates the connecting plate 21 in the height direction; the bottom wall 2121 is disposed around the void 211; the area of the mounting position 212 is matched with the area of the PCBA; the grooves 2123 are arranged on the bottom wall 2121, the grooves 2123 are provided with a plurality of grooves 2123 which are matched with a plurality of protrusions of the PCBA one by one, and the groove surface area of each groove 2123 is slightly larger than the area of the corresponding protrusion of the PCBA; the up-and-down adjusting mechanism 3 allows the pressing mechanism 4 to move up and down in the height direction.

When the automatic test bench is specifically applied, the base 1 is placed on a tabletop or other fixing parts, the burner is then required to be fixed on the base body or in the base body, preferably, the burner is installed in the base 1, then the PCBA is placed on the connecting plate 21, more specifically, the PCBA is placed at the installation position 212, at this time, the PCBA is covered at the position of the avoidance space 211, the PCBA is supported by the bottom wall 2121, meanwhile, the raised functional units of the PCBA are required to be aligned with the matched grooves 2123, then the burner is electrically connected with the PCBA through the avoidance space 211, then the upper and lower adjusting mechanisms 3 are controlled by a worker to extrude and fix the PCBA by the pressing mechanism 4, the upper and lower adjusting mechanisms 3 can be a mechanism with an up and down adjusting function automatically or a mechanism with an up and down adjusting function manually, in the embodiment, after the two sides of the PCBA are fixed by the connecting plate 21 and the pressing mechanism 4, the worker can start a switch of the burner to test the PCBA.

So, set up the installation position 212 through keeping away around the vacancy 211 on connecting plate 21 for place PCBA on connecting plate 21 can keep stable, avoided PCBA to slide on connecting plate 21, avoided PCBA that causes when hold-down mechanism 4 extrudeed PCBA simultaneously to slide, in addition, through setting up recess 2123 on diapire 2121, make the arch of PCBA can hold in recess 2123, avoided hold-down mechanism 4 to extrude PCBA, bellied functional unit damages with connecting plate 21 extrusion, improved the yields of PCBA.

Referring to fig. 3, fig. 3 is a front view of a PCBA testing fixture, and further, a receiving space 11 is provided inside the base 1.

Specifically, the base 1 is internally provided with a hollow, the hollow part forms a containing space 11, the base 1 is detachable, and the burner is arranged in the containing space 11.

Further, the connection plate 21 is detachably connected with the base 1.

When the PCBA testing fixture is applied, PCBA with different specifications can be adapted, when the tested PCBA needs to be replaced, the connecting plate 21 can be detached from the base 1, and the connecting plate 21 matched with the target PCBA in specification and the protruding position can be replaced.

So, through changing connecting plate 21 for PCBA test fixture is applicable to many money PCBA, only changes connecting plate 21 and matches PCBA, has reduced test cost.

Referring to fig. 4 and referring back to fig. 3, fig. 4 is a schematic structural view of the PCBA testing fixture after hiding a part of the base, and further, the supporting component 2 further includes an elastic member 23, one end of the elastic member 23 is connected with the connecting plate 21, and the other end is connected with the base 1.

Therefore, the extrusion force of the compressing mechanism 4 to the PCBA can be buffered through the elastic piece 23, and the PCBA is prevented from being damaged due to overlarge extrusion force.

Further, the support assembly 2 further comprises a connecting column 22, wherein the connecting column 22 is slidably connected with the base 1, one end of the connecting column is connected with the connecting plate 21, and the other end of the connecting column is connected with the base 1.

Specifically, one end of the connecting post 22 far away from the point of the connecting plate 21 stretches into the accommodating space 11 and is in sliding connection with the base 1, so that the buffer performance of the supporting component 2 on the PCBA can be further improved.

Referring back to fig. 4, further, the up-down adjusting mechanism 3 includes an adjusting frame 31, a connecting member 32 and a telescopic rod 33; the adjusting bracket 31 is arranged on the base 1, the connecting piece 32 is fixedly arranged on the adjusting bracket 31, one end of the telescopic rod 33 is connected with the connecting piece 32, and the other end is connected with the compressing mechanism 4.

When the telescopic rod 33 is used, a worker can adjust the height of the compressing mechanism 4 through the telescopic rod 33, and when the height of the compressing mechanism 4 needs to be adjusted, the worker only needs to control the telescopic rod 33 to stretch and retract.

Referring to fig. 5 and referring back to fig. 4, fig. 5 is a second perspective view of the PCBA testing fixture, further, the up-down adjusting mechanism 3 further includes a guide member 34, the guide member 34 is disposed parallel to the telescopic rod, one end of the guide member is connected to the base 1, and the other end is connected to the adjusting frame 31; the hold-down mechanism 4 is slidably connected to the guide 34.

Specifically, the guide member 34 is a guide column, and the pressing mechanism 4 is sleeved on the guide column and is slidably connected with the guide column.

Therefore, when the height of the pressing mechanism 4 is regulated, the pressing mechanism can move along the direction of the guide post, and the moving direction of the pressing mechanism 4 is ensured not to deviate.

Further, the up-down adjusting mechanism 3 further includes a limiting member 35, and the limiting member 35 is disposed on the adjusting frame 31 and connected to an end of the guiding member 34 away from the base 1.

Therefore, the limiting piece 35 can limit the highest moving position of the pressing mechanism 4, so that the PCBA is prevented from being damaged when the pressing mechanism 4 is too high and falls.

Further, the pressing mechanism 4 includes a pressing plate 41 and a pressing rod 42; the pressing plate 41 is connected with the up-down adjusting mechanism 3, and the pressing rod 42 is arranged on one surface of the pressing plate 41 facing the supporting component 2.

Specifically, the number of compression bars 42 is plural, the specifications of the plural compression bars 42 are the same, and the plural compression bars 42 are disposed on the compression plate 41 in a dispersed manner.

Thus, the compression bar 42 is in direct contact with the PCBA, so that the compression mechanism 4 can be ensured to compress and fix the necessary position of the PCBA.

Further, the base 1 and/or the connection plate 21 are made of an insulating material.

Specifically, the base 1 and the connection plate 21 are made of a wooden material or a PVC material.

Thus, the insulativity of the base 1 and the connecting plate 21 can be ensured, and the static electricity carried by a human body is prevented from breaking down the functional unit of the PCBA, thereby damaging products.

To sum up, through setting up the installation position around avoiding the vacancy on the connecting plate for place PCBA on the connecting plate and can keep stable, avoided PCBA to slide on the connecting plate, avoided PCBA that causes when hold-down mechanism extrudees PCBA simultaneously to slide, in addition, through setting up the recess on the diapire, make the arch of PCBA can hold in the recess, avoided hold-down mechanism extrusion PCBA, bellied functional unit and connecting plate extrusion damage, improved the yields of PCBA.

The above is merely an embodiment of the present utility model, and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the present utility model, should be included in the scope of the claims of the present utility model.

Claims (10)

1. A PCBA test fixture, comprising: the device comprises a base (1), a supporting component (2), an up-down adjusting mechanism (3) and a compressing mechanism (4); the support assembly (2) comprises a connecting plate (21), and the connecting plate (21) is arranged on the base (1); the connecting plate (21) is provided with a clearance hole (211) and an installation position (212), and the clearance hole (211) penetrates through the connecting plate (21) along the direction from the connecting plate (21) to the base (1) to the direction away from the base (1); the mounting position (212) is arranged on one surface of the connecting plate (21) facing away from the base (1) and is arranged around the periphery of the avoidance space (211), the mounting position (212) is provided with a bottom wall (2121) and a side wall (2122), the bottom wall (2121) is connected with the connecting plate (21), and the side wall (2122) is arranged around the bottom wall (2121); the bottom wall (2121) is provided with a groove (2123), and the groove (2123) is positioned on one surface of the bottom wall (2121) facing away from the base (1); the upper and lower adjusting mechanism (3) is connected with the base (1) and is positioned on the same side of the base (1) with the connecting plate (21); the pressing mechanism (4) is connected with the upper and lower adjusting mechanism (3).

2. A PCBA testing fixture according to claim 1, characterized in that the connection plate (21) is detachably connected with the base (1).

3. A PCBA testing fixture according to claim 1, characterized in that the support assembly (2) further comprises an elastic member (23), one end of the elastic member (23) being connected to the connection plate (21) and the other end being connected to the base (1).

4. A PCBA testing fixture according to claim 1, characterized in that the support assembly (2) further comprises a connecting post (22), the connecting post (22) being slidingly connected with the base (1) with one end connected with the connecting plate (21) and the other end connected with the base (1).

5. A PCBA testing fixture according to claim 1, characterized in that the up-down adjusting mechanism (3) comprises an adjusting bracket (31), a connecting piece (32) and a telescopic rod (33); the adjusting frame (31) is arranged on the base (1), the connecting piece (32) is fixedly arranged on the adjusting frame (31), one end of the telescopic rod (33) is connected with the connecting piece (32), and the other end of the telescopic rod is connected with the compressing mechanism (4).

6. A PCBA testing jig according to claim 5, characterized in that the up-down adjustment mechanism (3) further comprises a guide (34), the guide (34) being arranged parallel to the telescopic rod (33) with one end connected to the base (1) and the other end connected to the adjustment frame (31); the pressing mechanism (4) is in sliding connection with the guide piece (34).

7. A PCBA testing jig according to claim 6, characterized in that the up-down adjusting mechanism (3) further comprises a limit member (35), the limit member (35) being provided on the adjusting frame (31) and connected to an end of the guide member (34) remote from the base (1).

8. The PCBA testing fixture according to claim 1, characterized in that the hold-down mechanism (4) comprises a hold-down plate (41) and a compression bar (42); the pressing plate (41) is connected with the upper and lower adjusting mechanism (3), and the pressing rod (42) is arranged on one surface of the pressing plate (41) facing the supporting component (2).

9. A PCBA testing fixture according to any one of claims 1-8, characterized in that the base (1) and/or the connection plate (21) are made of an insulating material.

10. PCBA testing fixture according to any of claims 1-8, characterized in that the base (1) is internally provided with a receiving space (11).