Quickly replaceable drawer type FCT test fixture

Abstract

The utility model discloses a quick replacement's drawer type FCT test fixture, including main part, upper probe board, the main part lower extreme is equipped with support leg, the main part front end is equipped with operation display screen, the main part other end is equipped with controller, the main part upper extreme is equipped with the fixed base, is equipped with the lower probe board in the fixed base inboard of main part upper extreme, the main part rear end is equipped with L type mounting bracket.Quick replacement's drawer type FCT test fixture can be when needing to replace upper probe board and carry out the test to new product, pull fixed block, make rectangular limit block drive both ends installed rectangular slider in rectangular sliding slot and slide upward, thereby make rectangular limit block move up and retract in rectangular sliding hole, then take out upper probe board from mounting seat, and the standard needle seat connected between the rear end in mounting seat and upper probe board separates simultaneously, need not to dismantle a large number of wiring.

Description

Technical Field

[0001] This utility model relates to the field of FCT test fixture technology, and in particular to a drawer-type FCT test fixture that can be quickly replaced. Background Technology

[0002] The FCT test fixture is a machine used for functional testing of PCBA (Printed Circuit Board Assembly). With the development of technology, PCBAs are now mass-produced, and individual PCBAs have identical structures and patterns. For example, "An FCT test machine with quick fixture switching, disclosed in CN213843445U, includes a main body. A connecting rod, a lower probe plate, and a fixing block are fixedly connected to the upper surface of the main body. The fixing block is located inside the connecting rod, and the lower probe plate is located inside the fixing block. A fixing plate is provided at the upper end of the connecting rod, and an air pressure plate is provided on the front surface of the fixing plate." The telescopic rod, specifically the pneumatic telescopic rod, has a connecting plate at its lower end. Inside the connecting plate is a screw, and on the side surface of the screw is a trapezoidal limiting block. Below the trapezoidal limiting block is an upper probe plate, and below the upper probe plate is a nut. On the lower surface of the upper probe plate is a push rod, and inside the upper probe plate is an upper probe. The upper probe has a cap at its upper end, and the upper probe is snapped into the upper probe plate. However, when replacing the upper probe plate to test new products, workers need to loosen several bolts to remove the upper probe plate for replacement, and it also requires disassembling a large number of wires, which is quite troublesome. Utility Model Content

[0003] The main objective of this invention is to provide a drawer-type FCT test fixture that can be quickly replaced, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A quick-change drawer-type FCT test fixture includes a main body and an upper probe plate. A support leg is mounted on the lower end of the main body. An operation display screen is located at the front end of the main body. A controller is located at the other end of the main body. A fixed base is mounted on the upper end of the main body. A lower probe plate is located inside the fixed base. An L-shaped mounting bracket is mounted on the rear end of the main body. An electric telescopic rod is mounted on the upper end of the L-shaped mounting bracket. A mounting seat is mounted on the output end of the electric telescopic rod. The rear end of the mounting seat is connected to the upper probe plate via a standard probe seat. A limit structure is provided on the mounting seat.

[0006] More preferably, the limiting structure includes a limiting seat, a trapezoidal slide groove, a return spring, a fixing block, a connecting rod, a rectangular groove, a trapezoidal slide bar, a first wedge block, a convex slide bar, a second wedge block, a convex slide groove, a rectangular limiting block, a rectangular slide groove, a rectangular slider, and a rectangular slide hole.

[0007] More preferably, a limiting seat is installed at the front end of the upper surface of the mounting base, the lower end of the limiting seat is provided with a rectangular groove, and the upper end of the rectangular groove is provided with a trapezoidal sliding groove.

[0008] More preferably, a trapezoidal slide bar is slidably installed in the trapezoidal slide groove, a connecting rod is installed at the other end of the trapezoidal slide bar, and a fixing block is installed at the other end of the connecting rod.

[0009] More preferably, a return spring is sleeved on the other end of the trapezoidal slide on the outer surface of the connecting rod, and a wedge block is installed at the lower end of the trapezoidal slide, with a convex slide on the inclined surface of the wedge block.

[0010] More preferably, the inclined surface of the second wedge block is provided with a convex sliding groove, a convex sliding strip is slidably installed in the convex sliding groove, and a rectangular limiting block is installed at the lower end of the convex sliding strip.

[0011] More preferably, rectangular sliding grooves are provided at both ends of the rectangular groove, and rectangular sliders are slidably installed in the rectangular sliding grooves. Rectangular sliders are installed at both ends of the rectangular limiting block, and a rectangular sliding hole is provided near the front end of the mounting base.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, by setting a limiting structure, when it is necessary to replace the upper probe plate to test a new product, the fixing block is pulled, so that the rectangular limiting block drives the rectangular sliders installed at both ends to slide upward in the rectangular slide groove, thereby causing the rectangular limiting block to move upward and retract into the rectangular slide hole. Then the upper probe plate is pulled out from the mounting base. At the same time as it is pulled out, the standard pin seat connecting the rear end of the mounting base and the upper probe plate is separated, without the need to disassemble a large number of wires. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a drawer-type FCT test fixture that can be quickly replaced according to this utility model.

[0015] Figure 2 This is a bottom view of a drawer-type FCT test fixture that can be quickly replaced according to this utility model.

[0016] Figure 3 This is a cross-sectional view of the components of a drawer-type FCT test fixture that can be quickly replaced according to this utility model.

[0017] Figure 4 This utility model relates to a drawer-type FCT test fixture that can be quickly replaced. Figure 3 Enlarged view of point A in the middle;

[0018] Figure 5This utility model relates to a drawer-type FCT test fixture that can be quickly replaced. Figure 3 Enlarged view of section B in the middle.

[0019] In the diagram: 1. Main body; 101. Support leg; 2. Operation display screen; 201. Controller; 3. L-shaped mounting bracket; 301. Electric telescopic rod; 302. Mounting base; 4. Upper probe plate; 401. Lower probe plate; 402. Fixed base; 403. Standard needle seat; 5. Limiting structure; 501. Limiting seat; 502. Trapezoidal slide groove; 503. Return spring; 504. Fixed block; 505. Connecting rod; 506. Rectangular groove; 507. Trapezoidal slide bar; 508. Wedge block No. 1; 509. Convex slide bar; 510. Wedge block No. 2; 511. Convex slide groove; 512. Rectangular limiting block; 513. Rectangular slide groove; 514. Rectangular slider; 515. Rectangular sliding hole. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Participation Figure 1-5 As shown, a drawer-type FCT test fixture that can be quickly replaced includes a main body 1 and an upper probe plate 4. A support leg 101 is installed at the lower end of the main body 1. An operation display screen 2 is provided at the front end of the main body 1. A controller 201 is provided at the other end of the main body 1. A fixed seat 402 is installed at the upper end of the main body 1. A lower probe plate 401 is provided inside the fixed seat 402 at the upper end of the main body 1. An L-shaped mounting bracket 3 is installed at the rear end of the main body 1. An electric telescopic rod 301 is installed at the upper end of the L-shaped mounting bracket 3. A mounting base 302 is installed at the output end of the electric telescopic rod 301. The rear end of the mounting base 302 is connected to the upper probe plate 4 through a standard needle seat 403. A limit structure 5 is provided on the mounting base 302.

[0022] Specifically, the support leg 101 installed at the lower end of the main body 1 can support the main body 1. The operation display screen 2 at the front end of the main body 1 and the controller 201 at the other end of the main body 1 can be used to control the operation of the controller 201 through the operation display screen 2. The controller 201 controls the movement of the electric telescopic rod 301. Then the electric telescopic rod 301 drives the mounting base 302 to move downward, which in turn drives the upper probe plate 4 to move downward, so that the upper probe plate 4 contacts the upper surface of the PCBA, thereby performing the test on the PCBA.

[0023] Participation Figure 2-5As shown, the limiting structure 5 includes a limiting seat 501, a trapezoidal slide groove 502, a return spring 503, a fixing block 504, a connecting rod 505, a rectangular groove 506, a trapezoidal slide bar 507, a first wedge block 508, a convex slide bar 509, a second wedge block 510, a convex slide groove 511, a rectangular limiting block 512, a rectangular slide groove 513, a rectangular slider 514, and a rectangular slide hole 515. The limiting seat 501 is installed at the front end of the upper surface of the mounting base 302, and the lower end of the limiting seat 501 has an opening. There is a rectangular groove 506, and a trapezoidal slide groove 502 is opened at the upper end of the rectangular groove 506. A trapezoidal slide bar 507 is slidably installed in the trapezoidal slide groove 502. A connecting rod 505 is installed at the other end of the trapezoidal slide bar 507. A fixing block 504 is installed at the other end of the connecting rod 505. A return spring 503 is sleeved on the other end of the trapezoidal slide bar 507 on the outer surface of the connecting rod 505. A first wedge block 508 is installed at the lower end of the trapezoidal slide bar 507. A convex slide bar 509 is installed on the inclined surface of the first wedge block 508.

[0024] Specifically, the connecting rod 505 installed at the other end of the trapezoidal slide bar 507 and the fixing block 504 installed at the other end of the connecting rod 505 can pull the fixing block 504, causing the fixing block 504 to drive the connecting rod 505 to move to the other end. This causes the trapezoidal slide bar 507 installed at one end of the connecting rod 505 to slide to the other end in the trapezoidal slide groove 502, and squeeze the return spring 503. At the same time, it causes the first wedge block 508 installed at the lower end of the trapezoidal slide bar 507 to move to the other end.

[0025] Participation Figure 2-5 As shown, the inclined surface of the second wedge block 510 is provided with a convex sliding groove 511, a convex sliding strip 509 is slidably installed in the convex sliding groove 511, a rectangular limiting block 512 is installed at the lower end of the convex sliding strip 509, a rectangular sliding groove 513 is provided at both ends of the rectangular groove 506, a rectangular slider 514 is slidably installed in the rectangular sliding groove 513, a rectangular slider 514 is installed at both ends of the rectangular limiting block 512, and a rectangular sliding hole 515 is provided near the front end of the mounting base 302.

[0026] Specifically, through the convex groove 511 opened on the inclined surface of the second wedge block 510 and the convex slide bar 509 slidably installed in the convex groove 511, when the first wedge block 508 moves to the other end, the convex slide bar 509 installed on the inclined surface of the first wedge block 508 slides in the convex groove 511 opened on the inclined surface of the second wedge block 510, thereby driving the second wedge block 510 to move upward. This causes the rectangular limiting block 512 installed at the lower end of the second wedge block 510 to drive the rectangular sliders 514 installed at both ends to slide upward in the rectangular groove 513, thereby causing the rectangular limiting block 512 to move upward and retract into the rectangular sliding hole 515. Then, the upper probe plate 4 is pulled out from the mounting base 302. At the same time as it is pulled out, the standard pin seat 403 connecting the rear end of the mounting base 302 and the upper probe plate 4 is separated, without the need to disassemble a large number of wires.

[0027] It should be noted that this utility model is a drawer-type FCT test fixture that can be quickly replaced. When the upper probe plate 4 needs to be replaced to test a new product, the fixing block 504 is pulled, causing the fixing block 504 to move the connecting rod 505 to the other end. This causes the trapezoidal slide bar 507 installed at one end of the connecting rod 505 to slide to the other end within the trapezoidal slide groove 502, and compresses the return spring 503. At the same time, it causes the first wedge block 508 installed at the lower end of the trapezoidal slide bar 507 to move to the other end, causing the convex slide bar 507 installed on the inclined surface of the first wedge block 508 to move. 09 slides within the convex groove 511 on the inclined surface of the second wedge block 510, thereby driving the second wedge block 510 to move upward. This causes the rectangular limiting block 512 installed at the lower end of the second wedge block 510 to drive the rectangular sliders 514 installed at both ends to slide upward within the rectangular groove 513, thereby causing the rectangular limiting block 512 to move upward and retract into the rectangular sliding hole 515. Then, the upper probe plate 4 is pulled out from the mounting base 302. At the same time as it is pulled out, the standard pin seat 403 connecting the rear end of the mounting base 302 and the upper probe plate 4 is separated, eliminating the need to disassemble a large number of wires.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A drawer-type FCT test fixture with quick-change function, characterized in that, The device includes a main body (1) and an upper probe plate (4). The lower end of the main body (1) is equipped with a support leg (101). The front end of the main body (1) is equipped with an operation display screen (2). The other end of the main body (1) is equipped with a controller (201). The upper end of the main body (1) is equipped with a fixed seat (402). The lower probe plate (401) is provided inside the fixed seat (402) at the upper end of the main body (1). The rear end of the main body (1) is equipped with an L-shaped mounting bracket (3). The upper end of the L-shaped mounting bracket (3) is equipped with an electric telescopic rod (301). The output end of the electric telescopic rod (301) is equipped with a mounting base (302). The rear end of the mounting base (302) is connected to the upper probe plate (4) through a standard needle seat (403). The mounting base (302) is provided with a limit structure (5).

2. The drawer-type FCT test fixture with quick replacement according to claim 1, characterized in that: The limiting structure (5) includes a limiting seat (501), a trapezoidal slide groove (502), a return spring (503), a fixing block (504), a connecting rod (505), a rectangular groove (506), a trapezoidal slide bar (507), a first wedge block (508), a convex slide bar (509), a second wedge block (510), a convex slide groove (511), a rectangular limiting block (512), a rectangular slide groove (513), a rectangular slider (514), and a rectangular slide hole (515).

3. The drawer-type FCT test fixture with quick replacement according to claim 2, characterized in that: A limiting seat (501) is installed at the front end of the upper surface of the mounting base (302). A rectangular groove (506) is provided at the lower end of the limiting seat (501), and a trapezoidal sliding groove (502) is provided at the upper end of the rectangular groove (506).

4. The drawer-type FCT test fixture with quick replacement according to claim 3, characterized in that: A trapezoidal slide bar (507) is slidably installed in the trapezoidal slide groove (502), and a connecting rod (505) is installed at the other end of the trapezoidal slide bar (507). A fixing block (504) is installed at the other end of the connecting rod (505).

5. A drawer-type FCT test fixture with quick replacement according to claim 4, characterized in that: A return spring (503) is sleeved on the other end of the trapezoidal slide (507) on the outer surface of the connecting rod (505). A wedge block (508) is installed at the lower end of the trapezoidal slide (507), and a convex slide (509) is installed on the inclined surface of the wedge block (508).

6. A quick-change drawer-type FCT test fixture according to claim 5, characterized in that: The inclined surface of the second wedge block (510) is provided with a convex groove (511), and a convex slide bar (509) is slidably installed in the convex groove (511). A rectangular limiting block (512) is installed at the lower end of the convex slide bar (509).

7. A quick-change drawer-type FCT test fixture according to claim 6, characterized in that: The rectangular groove (506) has rectangular sliding grooves (513) at both ends, and a rectangular slider (514) is slidably installed in the rectangular sliding groove (513). The rectangular limiting block (512) has rectangular sliders (514) installed at both ends, and the mounting base (302) has a rectangular sliding hole (515) near the front end.

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