Dual-purpose detection fixture

Abstract

The utility model discloses a dual -purpose detection fixture, including the base plate, the first positioning groove and the second positioning groove that recess each other are not same in the upper and lower both sides of base plate, the first positioning groove is convex on the outside first locating block, the second positioning groove is convex on the outside second locating block, the support column is inserted in the four corners of base plate respectively, and the drive member that can synchronous drive four support columns is equipped on the base plate, and the support column is convex on the upper side of base plate or is convex on the lower side of base plate through drive member and makes the support column activity. Through setting the first positioning groove and the second positioning groove that recess each other are not same in the upper and lower both sides of base plate, and cooperate corresponding locating block, realized the detection function of two different workpieces of same fixture, need not frequently change fixture, effectively saved the equipment cost and the time of changing type, improved the detection efficiency, and the drive member synchronous drive four support columns activities can make the support column selectively convex on the upper side or lower side of base plate.

Description

Technical Field

[0001] This utility model specifically relates to a dual-purpose testing fixture. Background Technology

[0002] Traditional circuit board testing generally adopts a specialized "one board, one fixture" approach: for each type of circuit board, a separate testing fixture with specific positioning grooves and positioning posts needs to be designed and manufactured. This approach has many drawbacks: firstly, the equipment cost is high, especially in scenarios with multiple varieties and small batch production, companies need to stock a large number of fixtures of different specifications, which occupies a lot of capital and storage space. Utility Model Content

[0003] In view of the defects of the existing technology, the technical problem to be solved by this utility model is to provide a dual-purpose testing fixture. A dual-purpose testing fixture includes a base plate. The upper and lower sides of the base plate are respectively recessed with a first positioning groove and a second positioning groove that are different from each other. A first positioning block protrudes from the first positioning groove and a second positioning block protrudes from the second positioning groove. Support columns are movably inserted into the four corners of the base plate. The base plate is provided with a driving component that can synchronously drive the four support columns to move. The driving component makes the support columns movably protrude above the base plate or movably protrude below the base plate.

[0004] In one embodiment, the driving component includes a movable frame and a locking assembly. The base plate has through holes with upper and lower openings at its four corners. Support columns are movably inserted into these through holes. The base plate has recessed grooves on both sides that communicate with the corresponding through holes on the same side. The movable frame is annular in shape, and its two sides are movably disposed within the corresponding grooves. A guide groove is provided through one side of each support column, and the guide grooves on each support column are inclined in the same direction. The sidewall of the movable frame has several guide shafts corresponding to the guide grooves, and these guide shafts are movably inserted into the guide grooves one by one. The locking assembly is connected to the movable frame to lock the movable frame relative to the base plate.

[0005] In one embodiment, the locking assembly includes locking members that are threadedly inserted into both sides of the movable frame, with the two locking members respectively abutting against both sides of the base plate.

[0006] In one embodiment, the clamping member includes a screw and a knob fixedly disposed at one end of the screw.

[0007] In one embodiment, adjustable feet are threadedly inserted into both ends of the support column.

[0008] In one embodiment, the outer contours of the first positioning block and the second positioning block are respectively adapted to the positioning holes of the workpiece to be tested, and the first positioning block and the second positioning block are respectively detachably connected to the substrate.

[0009] In one embodiment, the substrate has a lifting plate area recessed on both sides of the first positioning groove and the second positioning groove, respectively.

[0010] In summary, the advantages of this utility model over the prior art are: This invention achieves the detection function of two different workpieces using the same fixture by setting different first and second positioning grooves on the upper and lower sides of the substrate and cooperating with corresponding positioning blocks. This eliminates the need for frequent fixture changes, effectively saving equipment costs and changeover time, and improving detection efficiency. Furthermore, the use of a driving component to synchronously drive the four support columns allows the support columns to selectively protrude above or below the substrate, meeting the support requirements of the fixture in different detection scenarios. The adjustment method is simple and quick, and the range of applications is wider. Attached Figure Description

[0011] Figure 1 This is one of the perspective views of a dual-purpose testing fixture in one embodiment of the present invention; Figure 2 This is a second perspective view of a dual-purpose testing fixture in one embodiment of the present invention; Figure 3 This is a cross-sectional view of a dual-purpose testing fixture in one embodiment of the present invention. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1 to 3 The present invention preferably provides a dual-purpose testing fixture, including a base plate 1. The base plate 1 has a first positioning groove 2 and a second positioning groove 3 that are different from each other on its upper and lower sides. A first positioning block 4 protrudes from the first positioning groove 2, and a second positioning block 5 protrudes from the second positioning groove 3. Support columns 6 are movably inserted into the four corners of the base plate 1. The base plate 1 is provided with a driving member 7 that can synchronously drive the four support columns 6 to move. The driving member 7 makes the support columns 6 movably protrude above the base plate 1 or movably protrude below the base plate 1.

[0013] Specifically, by setting different first and second positioning grooves on the upper and lower sides of the substrate, and cooperating with corresponding positioning blocks, the same fixture can be used to inspect two different workpieces without frequent fixture changes, effectively saving equipment costs and changeover time, and improving inspection efficiency. Furthermore, by using a driving component to synchronously drive the four support columns, the support columns can selectively protrude above or below the substrate, meeting the support requirements of the fixture in different inspection scenarios. The adjustment method is simple and quick, and the adaptability is wider.

[0014] Furthermore, the driving component 7 includes a movable frame 8 and a locking assembly 9. The four corners of the base plate 1 are respectively provided with through holes 10 with upper and lower openings. The support column 6 is movably inserted into the through holes 10. The two sides of the base plate 1 are respectively recessed with grooves 11 that communicate with the corresponding through holes 10 on the same side. The movable frame 8 is annular in shape, and the two sides of the movable frame 8 are respectively movably disposed in the grooves 11. The support column 6 is provided with a guide groove 12 through one side, and the guide grooves 12 on each support column 6 are all inclined in the same direction. The side wall of the movable frame 8 is provided with a plurality of guide shafts 13 corresponding to the guide grooves 12. The plurality of guide shafts 13 are movably inserted into the guide grooves 12 one by one. The locking assembly 9 is connected to the movable frame 8 to lock the movable frame 8 relative to the base plate 1.

[0015] Specifically, the guide grooves on the four support columns are all inclined in the same direction, forming an angle of 45° with the axis of the support column. A guide shaft is fixedly connected to each guide groove on the inner wall of the movable frame. The diameter of the guide shaft matches the width of the guide groove, and they are movably inserted into the guide groove one-to-one. When the movable frame is pushed to slide along the groove, the guide shaft slides within the guide groove, driving the support column to move axially along the perforation through the inclined surface. A locking assembly then maintains the locked state.

[0016] Furthermore, the locking assembly 9 includes tightening members 14 that are threadedly inserted into both sides of the movable frame 8, with the two tightening members 14 respectively abutting against both sides of the base plate 1. Specifically, the tightening members on both sides of the movable frame are threadedly moved to press against both sides of the base plate, thereby restricting the relative movement of the movable frame relative to the base plate and thus maintaining the fixed state of the support column protruding outward relative to the base plate.

[0017] Furthermore, the tightening member 14 includes a screw and a knob fixedly disposed at one end of the screw, thereby facilitating user control of tightening.

[0018] Furthermore, each end of the support column 6 is threaded with an adjusting foot pad 15. Specifically, by rotating the adjusting foot pad, the length of the foot pad extending beyond the end of the support column can be changed, thereby achieving fine-tuning and leveling of the fixture support height.

[0019] Furthermore, the outer contours of the first positioning block 4 and the second positioning block 5 are respectively adapted to the positioning holes of the circuit board to be tested, and the first positioning block 4 and the second positioning block 5 are respectively detachably connected to the substrate 1. This enables the positioning and placement of the circuit board, and the first positioning block and the second positioning block are easy to disassemble and maintain.

[0020] Furthermore, the substrate 1 has recessed lifting areas 21 on both sides of the first positioning groove 2 and the second positioning groove 3, respectively. This facilitates the user in picking up the circuit board in the first positioning groove or the second positioning groove.

[0021] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dual-purpose testing fixture, comprising a substrate (1), characterized in that: The substrate (1) has a first positioning groove (2) and a second positioning groove (3) that are different from each other on its upper and lower sides. A first positioning block (4) protrudes from the first positioning groove (2), and a second positioning block (5) protrudes from the second positioning groove (3). Support columns (6) are inserted into the four corners of the substrate (1) and can be inserted into the upper and lower sides respectively. The substrate (1) is provided with a driving member (7) that can drive the four support columns (6) to move synchronously. The driving member (7) can make the support columns (6) move upward above the substrate (1) or move downward below the substrate (1).

2. The dual-purpose testing fixture according to claim 1, characterized in that: The driving component (7) includes a movable frame (8) and a locking component (9). The four corners of the base plate (1) are respectively provided with through holes (10) with upper and lower openings. The support column (6) is movably inserted into the through hole (10). The two sides of the base plate (1) are respectively recessed with grooves (11) that are connected to the corresponding through holes (10) on the same side. The movable frame (8) is ring-shaped, and the two sides of the movable frame (8) are respectively movably arranged in the grooves (11). The support column (6) is provided with a guide groove (12) on one side, and the guide grooves (12) on each support column (6) are all inclined in the same direction. The side wall of the movable frame (8) is provided with a number of guide shafts (13) corresponding to the guide grooves (12). The number of guide shafts (13) are movably inserted into the guide grooves (12) one by one. The locking component (9) is connected to the movable frame (8) to lock the movable frame (8) relative to the base plate (1).

3. The dual-purpose testing fixture according to claim 2, characterized in that: The locking assembly (9) includes a clamping member (14) that is threadedly inserted into both sides of the movable frame (8), and the two clamping members (14) respectively abut against both sides of the base plate (1).

4. The dual-purpose testing fixture according to claim 3, characterized in that: The fastening member (14) includes a screw and a knob fixedly disposed at one end of the screw.

5. A dual-purpose testing fixture according to claim 1, characterized in that: The support column (6) has adjustable feet (15) threaded into both ends.

6. A dual-purpose testing fixture according to claim 1, characterized in that: The outer contours of the first positioning block (4) and the second positioning block (5) are respectively adapted to the positioning holes of the workpiece to be tested, and the first positioning block (4) and the second positioning block (5) are respectively detachably connected to the substrate (1).

7. A dual-purpose testing fixture according to claim 1, characterized in that: The substrate (1) has a lifting plate area (21) recessed on both sides of the first positioning groove (2) and the second positioning groove (3).

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