Probe detection jig lifting mechanism

Abstract

The utility model aims to provide the probe detection jig lifting mechanism which is convenient to operate, can effectively prevent the detection probe from being damaged during feeding and discharging, and is high in feeding connection precision. The tool comprises a mounting base, a lifting assembly and a horizontal moving assembly, the mounting base is provided with a plurality of sets of tool supporting assemblies matched with a probe plate to be tested, the lifting assembly is arranged on the mounting base, the horizontal moving assembly comprises a connecting frame and a supporting frame, the connecting frame is arranged at the movable end of the lifting assembly, and the supporting frame is arranged at the movable end of the lifting assembly. The two sides of the supporting frame are connected with the connecting frame in a matched mode through telescopic guide rails, and the supporting frame is provided with a jig limiting block matched with a probe plate to be tested. The feeding and discharging mechanism is applied to the technical field of feeding and discharging mechanisms.

Description

Technical Field

[0001] The utility model is applied to the technical field of loading and unloading mechanisms, and particularly relates to a probe detection fixture lifting mechanism. Background Art

[0002] With the popularization and application of electronic devices, electronic devices need to be composed of a variety of circuit boards to form control units or component circuits. For large circuit boards, there are many connection points and probes. In order to ensure that the circuit boards can work properly, probe boards are usually used for testing. The probe boards are provided with many detection probes for docking with the connection points or probes on the circuit boards, and then the test circuits are turned on to collect electrical signals from the connection points on the circuit boards, and then judge the quality of the circuit boards. However, the installation accuracy of the detection probes on the probe boards is very high. At the same time, when using them for circuit board testing, they are also easily damaged by the impact force during docking. Therefore, the probe boards need to be tested during production and maintenance to ensure that the detection probes are in a normal connected state. Since the probe boards are made of heavier materials, the probe boards need to be transported to the testing equipment when performing the probe board testing. Usually, at least two workers are required to cooperate in the transportation. The testing equipment is usually provided with a dustproof rack. The existing testing equipment has operation doors on both sides of the dustproof rack, which facilitates manual operation when loading and unloading. The structure of the above-mentioned detection equipment requires manual operation and the probe plate is heavy, which makes it difficult to operate and has high labor intensity. It is also easy to cause damage to the probes on the probe plate due to mistakes during operation.

[0003] If a probe detection fixture lifting mechanism that is easy to operate, can effectively prevent the detection probe from being damaged during loading and unloading, and has high loading connection accuracy can be provided, the above problems can be well solved. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a probe detection fixture lifting mechanism that is easy to operate, can effectively prevent the detection probe from being damaged during loading and unloading, and has high loading connection accuracy.

[0005] The technical solution adopted by the present invention is: the present invention includes a mounting seat, a lifting assembly and a horizontal moving assembly, the mounting seat is provided with several groups of jig support assemblies that cooperate with the probe board to be tested, the lifting assembly is arranged on the mounting seat, the horizontal moving assembly includes a connecting frame and a support frame, the connecting frame is arranged at the movable end of the lifting assembly, the two sides of the support frame are connected to the connecting frame through telescopic guide rails, and the support frame is provided with a jig limit block that cooperates with the probe board to be tested.

[0006] As can be seen from the above scheme, by setting the lifting component to drive the horizontal moving component to move up and down, the probe board can be lifted during loading and unloading, avoiding the test probes on the probe board from colliding with the mounting seat or other structures of the equipment and causing damage. By setting the horizontal moving component, the operator can place the probe board for loading and unloading outside the dustproof rack, and there is no need to handle it through the operation door when unloading. It can be carried out more easily and conveniently, avoiding the risk of damage to the probe board caused by high operating difficulty, reducing manual labor intensity, and achieving accurate docking of the probe board.

[0007] A preferred solution is that a pair of the jig limit blocks are distributed on both sides of the support frame, and the end corners of the pair of the jig limit blocks are provided with guiding inclined surfaces, and the edges of the probe board to be tested are limited and matched with the guiding inclined surfaces.

[0008] A preferred solution is that a limiting cylinder is provided on the connecting frame, and a locking block and a stop block are provided on the supporting frame. When the telescopic guide rail is in a fully retracted state, the movable end of the limiting cylinder cooperates with the locking hole on the locking block, and the stop block cooperates with the movable end of the limiting cylinder in a limiting manner.

[0009] A preferred solution is that a guide column is provided on the connecting frame, and a linear guide sleeve that slides with the guide column is provided on the mounting seat.

[0010] A preferred solution is that the lifting assembly includes a servo motor and several lifting units, the lifting units include a nut seat, a screw nut and a lifting screw, the nut seat is fixed on the mounting seat, the screw nut is rotatably engaged in the nut seat, the lifting screw is transmission-engaged with the screw nut, the lifting screw is connected to the connecting frame, the screw nut is connected to a transmission part, and the transmission parts of several of the lifting units are synchronously transmission-engaged with the output end of the servo motor.

[0011] A preferred solution is that the jig support assembly also includes a limit block, the support block is provided with a through hole that slides with the limit block, the limit block is provided with a guide rod, the guide rod cooperates with the guide slide rail provided on the inner wall of the support seat, when the support block is lifted or lowered, the guide rod moves along the guide slide rail and drives the limit block to extend, retract or move in the through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the first three-dimensional structure of the utility model in the extended state;

[0014] Figure 3This is a second three-dimensional structural diagram of the utility model in an extended state;

[0015] Figure 4 is a schematic diagram of the three-dimensional structure of the lifting assembly;

[0016] Figure 5 is a schematic diagram of the three-dimensional structure of the jig support assembly;

[0017] Figure 6 Schematic diagram of the internal structure of the jig support assembly. DETAILED DESCRIPTION

[0018] like Figures 1 to 6 As shown, in this embodiment, the utility model includes a mounting base 1, a lifting assembly 3 and a horizontal moving assembly 4, and the mounting base 1 is provided with several groups of jig support assemblies 2 that cooperate with the probe board to be tested, and the lifting assembly 3 is arranged on the mounting base 1, and the horizontal moving assembly 4 includes a connecting frame 41 and a support frame 42, and the connecting frame 41 is arranged at the movable end of the lifting assembly 3, and the two sides of the support frame 42 are connected to the connecting frame 41 through telescopic guide rails 43, and the support frame 42 is provided with a jig limit block 44 that cooperates with the probe board to be tested.

[0019] like Figure 2 As shown, in this embodiment, a pair of jig limit blocks 44 are distributed on both sides of the support frame 42. The end corners of the pair of jig limit blocks 44 are provided with guide bevels 441, and the edges of the probe board to be tested are limited by the guide bevels 441. By providing the guide bevels 441, the probe board to be tested is automatically positioned. When the operator places the probe board to be tested, the edge of the probe board automatically falls into the limit area along the guide bevels 441, thereby ensuring that when the support frame 42 is retracted, the probe board to be tested is in the test docking position, ensuring docking accuracy.

[0020] like Figure 1 and Figure 2 As shown, in this embodiment, a limit cylinder 45 is provided on the connecting frame 41, and a locking block 46 and a stop block 47 are provided on the supporting frame 42. When the telescopic guide rail 43 is in a fully retracted state, the movable end of the limit cylinder 45 cooperates with the locking hole 461 on the locking block 46, and the stop block 47 cooperates with the movable end of the limit cylinder 45 to limit the position. The limit cylinder 45 cooperates with the locking block 46 to lock, thereby ensuring that the connecting frame 41 is locked in the test area and ensuring stability during testing. At the same time, the stop block 47 is provided for limiting, and the movable end of the limit cylinder 45 extends and cooperates with the stop block 47 for limiting, thereby limiting the maximum stroke of the supporting frame 42, ensuring that the telescopic guide rail 43 can stably provide supporting force, and ensuring that the structure is stable, safe and reliable during loading and unloading.

[0021] like Figure 3 and Figure 4 As shown, in this embodiment, the connecting frame 41 is provided with a guide post 48, and the mounting base 1 is provided with a linear guide sleeve 11 that slides with the guide post 48. The provision of the guide post 48 and the linear guide sleeve 11 improve the lifting stability and straightness of the connecting frame 41.

[0022] like Figure 4 As shown, in this embodiment, the lifting assembly 3 includes a servo motor 31 and several lifting units 32. The lifting units 32 include a nut seat 321, a screw nut 322, and a lifting screw 323. The nut seat 321 is fixed to the mounting base 1. The screw nut 322 is rotatably engaged in the nut seat 321. The lifting screw 323 is in transmission cooperation with the screw nut 322. The lifting screw 323 is connected to the connecting frame 41. The screw nut 322 is connected to a transmission member 324. The transmission members 324 of several lifting units 32 are synchronously transmitted and cooperated with the output end of the servo motor 31. The servo motor 31 simultaneously drives the several transmission members 324 to rotate and then drives the screw nut 322 to rotate, thereby driving the lifting screw 323 to move up and down. In this embodiment, the servo motor 31 is coupled to the transmission members 324 of the lifting units 32 via a transmission chain. The transmission member 324 is a sprocket. The mounting base 1 is also provided with a tensioning pulley 311 that cooperates with the transmission chain. The transmission chain sequentially passes through the output end of the servo motor 31, the tensioning pulley 311, and the transmission members 324 to achieve simultaneous lifting. In addition to the above transmission methods, synchronous lifting can also be achieved by using a synchronous belt or gears for transmission connection.

[0023] like Figure 1 、 Figure 5 and Figure 6As shown, in this embodiment, the jig support assembly 2 includes a support base 21 and a driving cylinder 22. The support base 21 is fixed on the mounting base 1, and the driving cylinder 22 is hingedly matched at the bottom of the support base 21. A supporting block 23 is slidably provided on the support base 21. The movable end of the driving cylinder 22 is in transmission cooperation with the supporting block 23 and drives the supporting block 23 to rise and fall. The supporting block 23 is used to limit and support the probe plate to be tested, and at the same time, the docking of the test probe and the equipment test structure is achieved in steps through the lifting structure, thereby improving the docking accuracy. A tooth groove 231 is provided on the supporting block 23, and the movable end of the driving cylinder 22 is hingedly matched with an adapter assembly. The adapter assembly includes a transfer rod 221 hingedly matched with the movable end of the driving cylinder 22 and a tooth block 222 provided on the end of the transfer rod 221 away from the driving cylinder 22, and the tooth block 222 is engaged with the tooth groove 231. When the driving cylinder 22 extends or retracts, it drives the rotating assembly to rotate, and then drives the supporting block 23 to move up and down through the engagement of the tooth block 222 with the tooth groove 231, thereby achieving the test docking of the probe card.

[0024] like Figure 6 As shown, in this embodiment, the jig support assembly 2 also includes a limiting shaft 24, and a reset spring that cooperates with the limiting shaft 24 is provided in the support seat 21. The reset spring pushes the limiting shaft 24 to move in the direction of the support block 23. The support block 23 is provided with a through hole 25 that slides with the limiting shaft 24. The limiting shaft 24 is provided with a guide rod 26, and the guide rod 26 cooperates with the guide rail 27 provided on the inner wall of the support seat 21. When the support block 23 is lifted, the guide rod 26 moves along the guide rail 27 and drives the limiting shaft 24 to extend, retract or move in the through hole 25. The limiting shaft 24 is provided with a pressure block that cooperates with the upper surface of the probe plate to be tested, and the probe plate is pressed by the pressure block. The limiting shaft 25 is provided to position the probe plate to prevent the probe plate from jumping during testing.

[0025] The working principle of this utility model:

[0026] During loading, the lifting assembly 3 raises the connecting frame 41. When the operator begins loading, he first controls the limit cylinder 45 to retract via the control button, thereby releasing the lock of the support frame 42 and pulling it out. During the pulling process, the limit cylinder 45 extends and cooperates with the stop block 47 to limit the position. The operator moves the probe card to be tested onto the support frame 42 and performs rough positioning via the jig limit block 44. After loading is completed, the support frame 42 is pushed back, during which the limit cylinder 45 is controlled to retract and then extend to cooperate with the locking hole 461 to lock it.

[0027] After the locking is completed, the lifting assembly 3 and the fixture support assembly 2 are sequentially lowered and docked with the probe board to be tested, thereby achieving docking of the detection probe of the probe board with the equipment for testing.

[0028] Similarly, perform the above actions in reverse to achieve material unloading.

[0029] Although the embodiments of the present invention are described with practical solutions, they do not limit the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. A probe detection fixture lifting mechanism, comprising a mounting base (1), on which are arranged a plurality of fixture support components (2) that cooperate with the probe plate to be tested, characterized in that: The probe detection fixture lifting mechanism also includes a lifting component (3) and a horizontal moving component (4), the lifting component (3) is arranged on the mounting seat (1), and the horizontal moving component (4) includes a connecting frame (41) and a support frame (42), the connecting frame (41) is arranged at the movable end of the lifting component (3), and the two sides of the support frame (42) are connected to the connecting frame (41) through telescopic guide rails (43), and the support frame (42) is provided with a fixture limit block (44) that cooperates with the probe plate to be tested.

2. The probe detection fixture lifting mechanism according to claim 1, characterized in that: A pair of the jig limit blocks (44) are distributed on both sides of the support frame (42), and the end corners of the pair of jig limit blocks (44) are provided with guide bevels (441), and the edges of the probe plate to be tested are limitedly matched with the guide bevels (441).

3. The probe detection fixture lifting mechanism according to claim 1, characterized in that: A limiting cylinder (45) is provided on the connecting frame (41), and a locking block (46) and a stopping block (47) are provided on the supporting frame (42). When the telescopic guide rail (43) is in a fully retracted state, the movable end of the limiting cylinder (45) cooperates with the locking hole (461) on the locking block (46), and the stopping block (47) cooperates with the movable end of the limiting cylinder (45) in a limiting manner.

4. The probe detection fixture lifting mechanism according to claim 1, characterized in that: A guide column (48) is provided on the connecting frame (41), and a linear guide sleeve (11) that is slidably engaged with the guide column (48) is provided on the mounting seat (1).

5. The probe detection fixture lifting mechanism according to claim 1, characterized in that: The lifting assembly (3) includes a servo motor (31) and a plurality of lifting units (32), wherein the lifting units (32) include a nut seat (321), a screw nut (322) and a lifting screw (323), wherein the nut seat (321) is fixed on the mounting seat (1), the screw nut (322) is rotatably engaged in the nut seat (321), the lifting screw (323) is transmission-engaged with the screw nut (322), the lifting screw (323) is connected to the connecting frame (41), the screw nut (322) is connected with a transmission member (324), and the transmission members (324) of the plurality of lifting units (32) are synchronously transmission-engaged with the output end of the servo motor (31).

6. The probe detection fixture lifting mechanism according to claim 1, characterized in that: The jig support assembly (2) comprises a support base (21) and a driving cylinder (22), wherein the support base (21) is fixed on the mounting base (1), the driving cylinder (22) is hingedly engaged with the bottom of the support base (21), a supporting block (23) is slidably provided on the support base (21), and the movable end of the driving cylinder (22) is in transmission engagement with the supporting block (23) and drives the supporting block (23) to be raised and lowered.

7. The probe detection fixture lifting mechanism according to claim 6, characterized in that: The jig support assembly (2) further includes a limiting shaft (24), a through hole (25) is provided on the support block (23) and is slidably engaged with the limiting shaft (24), a guide rod (26) is provided on the limiting shaft (24), and the guide rod (26) is engaged with a guide rail (27) provided on the inner wall of the support seat (21), and when the support block (23) is lifted or lowered, the guide rod (26) moves along the guide rail (27) and drives the limiting shaft (24) to extend, retract or move in the through hole (25).

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