PCB test pin clamp

Abstract

The utility model discloses a PCB test needle clamp, and relates to the technical field of clamps. The PCB test needle clamp comprises a clamping block used for clamping a PCB, an electric telescopic rod arranged on one side of the clamping block and a control seat used for supporting the electric telescopic rod, and a rotating seat used for controlling the electric telescopic rod and the clamping block to rotate is arranged on one side of the control seat. According to the device, the connecting belt is arranged between the rotating seat for controlling the clamp to rotate and the linkage rod connected with the probe, so that when the rotating seat drives the PCB clamped at the clamp to rotate, the probe can be driven to rotate at the same time, and then it is ensured that the layout of the probe and the layout of electronic elements on the PCB are in a unified state; and a tensioning rod, a threaded rod and a driving motor are combined, so that when the position of the probe is changed, the connecting belt can be always in a connecting state with the rotating seat, the linkage rod and the tensioning rod, and then it is ensured that the clamp does not make contact with the probe in the process of clamping the PCB.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixture, specifically is a PCB test needle fixture. BACKGROUND

[0002] After the production of PCB, the test fixture is used to test the electronic components installed on the surface, that is, the test needle at the test fixture is moved to the PCB, the test needle contacts the electronic components, and then the test is carried out, in the process, the fixture on the test fixture is used to clamp and fix the PCB to avoid the position deviation of the PCB.

[0003] The existing rotating device is arranged on the fixture, so that the PCB clamped at the fixture can be turned over, and then the electronic components installed on different sides of the PCB are tested, but the layout of the test needle arranged on the test fixture is fixed, and the layout of the electronic components installed on different sides of the PCB is different, so that the same test needle cannot meet the accurate testing requirement of the electronic components installed on different sides of the PCB, and even the test needle contacts the fixture, causing damage to the fixture and the test needle. In view of the defects of the prior art, the PCB test needle fixture is provided to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the PCB test needle fixture is provided to solve the above problems.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a PCB test needle fixture, comprising a clamping block for clamping a PCB, an electric telescopic rod arranged on one side of the clamping block, and a control seat for supporting the electric telescopic rod, one side of the control seat is provided with a rotating seat for controlling the rotation of the electric telescopic rod and the clamping block, a linkage mechanism is arranged between the rotating seat and the test needle, the linkage mechanism comprises:

[0006] A linkage rod is fixedly connected with the outer wall of the test needle;

[0007] A connecting belt is arranged between the linkage rod and the rotating seat, which drives the test needle and the clamping block to rotate synchronously through the connecting belt;

[0008] The tensioning assembly is arranged on one side of the control seat, and comprises a supporting seat fixedly arranged on one side of the control seat, a tensioning rod slidingly arranged on one side of the supporting seat and used for connecting the belt tensioning control, and a driving motor arranged on one side of the control seat and used for controlling the tensioning position of the tensioning rod.

[0009] Preferably, one side of the supporting seat is provided with a sliding groove, and a bearing seat is slidingly arranged in the sliding groove.

[0010] Preferably, a threaded rod connected with the driving motor is rotatably arranged in the sliding groove, and one end of the bearing seat is threadedly sleeved on the outer wall of the threaded rod.

[0011] Preferably, the outer walls of the linkage rod, the rotating seat and the tensioning rod are all fixedly provided with a belt pulley used for connecting the belt limiting arrangement.

[0012] Preferably, the rotating seat is internally provided with a control device used for controlling the extension and retraction of the electric telescopic rod.

[0013] Preferably, the control seat is internally provided with a driving device used for driving the rotation of the rotating seat.

[0014] Preferably, one end of the linkage rod is movably connected with a supporting plate, and the supporting plate is fixedly connected with the moving plate supporting the test needle.

[0015] The utility model discloses a PCB test needle clamp, which has the following beneficial effects: the PCB test needle clamp is provided with a connecting belt between the rotating seat controlling the clamp to rotate and the linkage rod connected with the detection needle, so that when the rotating seat drives the PCB clamped by the clamp to rotate, the detection needle can also rotate, thereby ensuring that the layout of the detection needle and the layout of the electronic components on the PCB are in a unified state, and in combination with the tensioning rod, the threaded rod and the driving motor, the connecting belt can always be in a connected state between the rotating seat, the linkage rod and the tensioning rod when the detection needle changes position, thereby ensuring that the clamp does not contact the detection needle during clamping the PCB. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is the schematic view of the clamping block and the connecting belt connecting structure of the utility model;

[0019] Figure 3 It is the schematic view of the connecting rod and the tension rod connecting structure of the utility model;

[0020] Figure 4 It is the schematic view of the supporting seat, bearing and tension rod connecting structure of the utility model;

[0021] Figure 5 It is the schematic view of the control seat, rotating seat and clamping block connecting structure of the utility model.

[0022] In the drawing: 1, clamping block;2, electric telescopic rod;3, control seat;4, rotating seat;5, linkage mechanism;51, connecting rod;52, connecting belt;53, tensioning assembly;531, supporting seat;532, sliding groove;533, bearing seat;534, tension rod;535, threaded rod;536, driving motor;6, pulley. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantage of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model is described clearly and completely, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0024] The PCB test needle clamp provided by the embodiment of the application solves the problem that when the clamp is rotated by the rotating device, the PCB board held by the clamp is rotated, different electronic element layouts on the PCB board make the same test needle unable to meet the accurate test requirement of the electronic elements installed on different sides of the PCB board, and even the test needle and the clamp are in contact, causing the clamp and the test needle to be damaged, realizes linkage between the clamp and the test needle, so that the clamp can drive the test needle to rotate synchronously, and ensures that the test needle is accurately corresponding to the electronic elements on the PCB board.

[0025] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings of the specification and specific embodiments.

[0026] The embodiment of the utility model discloses a PCB test needle clamp.

[0027] According to the drawings Figures 1-5As shown, including the clamping block 1 for clamping PCB, set in the clamping block 1 one side of the electric telescopic rod 2 and for supporting the control seat 3 of the electric telescopic rod 2, the control seat 3 one side is provided for controlling the rotation of the electric telescopic rod 2 and the clamping block 1 rotating seat 4, namely the one end of the electric telescopic rod 2 and the one side of the rotating seat 4 is connected, the inside of the rotating seat 4 is provided for controlling the control device of the electric telescopic rod 2 telescopic, the inside of the control seat 3 is provided with the driving device for driving the rotating seat 4 rotation, the control device and the driving device are not in the specific drawing, refer to the drawing Figure 5 , clamping block 1, electric telescopic rod 2, control seat 3 and rotating seat 4 and so on constitute for clamping different size PCB clamp, and can drive its place clamping PCB rotation, refer to the drawing Figure 1 , the clamp is arranged on the test jig composed of jig body, stand, moving plate, a plurality of detection needles, etc. When the test jig is used, the PCB is clamped and fixed by the clamp, and then the control handle is opened to start the cylinder, so that the cylinder drives the moving plate and the detection needle arranged at the lower part of the moving plate to move, until the one end of the plurality of detection needles contacts the electronic element on the PCB, so that the detection needle tests and judges the good and bad of the PCB.

[0028] Refer to the drawing Figures 2-4 , the rotating seat 4 and the test needle are provided with a linkage mechanism 5, the electronic element layout of the PCB on both sides is different, therefore through the linkage mechanism 5 arranged, when the clamping block 1 drives the PCB clamped by the rotating seat 4 to rotate, the detection needle linked with it can be driven to rotate at the same time, so that the detection needle with different layout corresponds to one side of the PCB with different electronic element parts, the linkage mechanism 5 includes linkage rod 51, the linkage rod 51 is fixedly connected with the outer wall of the test needle, the one end of the linkage rod 51 is movably connected with the support plate, the support plate is fixedly connected with the moving plate supporting the test needle, refer to the drawing Figure 2 , the connecting belt 52 is arranged between the linkage rod 51 and the rotating seat 4, the test needle and the clamping block 1 are driven to rotate synchronously through the connecting belt 52;

[0029] Refer to the drawing Figures 3-4The tensioning assembly 53 is located on one side of the control base 3. When the probe moves closer to the PCB board under the control of the cylinder, the distance between the linkage rod 51 at the probe and the rotating base 4 changes. At this time, the tensioning assembly 53 can tension the connecting belt 52 to different lengths according to the distance between them, so that the connecting belt 52, the linkage rod 51 and the rotating base 4 always remain connected. The tensioning assembly 53 includes a support base 531 fixedly installed on one side of the control base 3, a tensioning rod 534 slidably installed on one side of the support base 531 for adjusting the tension of the connecting belt 52, and a drive motor 536 installed on one side of the control base 3 for adjusting the tension position of the tensioning rod 534. The drive motor 536 is a forward and reverse motor, which can control the threaded rod 535 to rotate forward. Alternatively, the path between the tensioning rod 534 and the rotating seat 4 can be adjusted to allow for corresponding tensioning of the connecting belt 52. A groove 532 is provided on one side of the support seat 531, and a bearing seat 533 is slidably disposed inside the groove 532. One end of the tensioning rod 534 is fixedly connected to the inner wall of the bearing seat 533. A threaded rod 535, connected to the drive motor 536, is rotatably disposed inside the groove 532. One end of the bearing seat 533 is threaded onto the outer wall of the threaded rod 535. Pulleys 6 for limiting the connecting belt 52 are fixedly disposed on the outer walls of the linkage rod 51, the rotating seat 4, and the tensioning rod 534. The connecting belt 52, supported by the linkage rod 51, the rotating seat 4, and the tensioning rod 534, forms a triangular structure. (See attached diagram for details.) Figure 3 .

[0030] Specifically, the connecting belt 52 in its initial state is shown in the attached figure. Figure 3 The probe is in the following state, and its position is as shown in the attached figure. Figure 2 As shown, the probe does not contact the PCB board held by the clamp. When the probe moves closer to the PCB board under the control of the cylinder, the distance between the linkage rod 51 and the rotating seat 4 at the probe gradually decreases, thereby causing the connecting belt 52 between the linkage rod 51 and the rotating seat 4 to gradually loosen. At this time, the drive motor 536 automatically controls the threaded rod 535 connected to one end to rotate forward under the set program, so that the bearing seat 533 connected to the threaded rod 535 and the tension rod 534 set on one side of the bearing seat 533 move away from the control seat 3. Thus, under the control of the tension rod 534, the loose part of the connecting belt 52 between the linkage rod 51 and the rotating seat 4 is straightened. That is, after adjusting the spacing, the connecting belt 52 between the linkage rod 51 and the rotating seat 4 is adjusted to be between the linkage rod 51 and the tension rod 534 and between the rotating seat 4 and the tension rod 534, so that the linkage rod 51, the rotating seat 4 and the tension rod 534 can always be linked through the connecting belt 52.

[0031] Then, when the PCB test position needs to be changed, the drive device inside the control seat 3 is started, so that the rotating seat 4 rotates, and then drives the linkage rod 51 and the tensioning rod 534 to rotate under the connection of the belt 52, when the linkage rod 51 rotates, the probe needle fixedly connected at one end of the linkage rod 51 is driven to rotate, so that the probe needle of different layouts rotates to the corresponding position of the electronic element on the different side of the PCB, and the accurate detection of the PCB at the clamp is realized.

[0032] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The skilled person in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A PCB board test needle clamp, comprising a clamping block (1) for clamping a PCB board, an electric telescopic rod (2) arranged on one side of the clamping block (1), and a control seat (3) for supporting the electric telescopic rod (2), one side of the control seat (3) being provided with a rotating seat (4) for controlling rotation of the electric telescopic rod (2) and the clamping block (1), characterized in that, The rotating seat (4) is provided with a linkage mechanism (5) between the test needle, the linkage mechanism (5) comprises: The linkage rod (51) is fixedly connected with the outer wall of the test needle; The connecting belt (52) is arranged between the linkage rod (51) and the rotating seat (4), and the connecting belt (52) drives the test needle and the clamping block (1) to rotate synchronously; The tensioning assembly (53) is arranged on one side of the control seat (3), and the tensioning assembly (53) comprises a supporting seat (531) fixedly arranged on one side of the control seat (3), a tensioning rod (534) slidingly arranged on one side of the supporting seat (531) and used for connecting belt (52) tensioning control, and a driving motor (536) arranged on one side of the control seat (3) and used for tensioning position control of the tensioning rod (534).

2. The PCB test needle clamp of claim 1, wherein: One side of the supporting seat (531) is provided with a sliding groove (532), and the bearing seat (533) is slidingly arranged in the sliding groove (532).

3. The PCB test needle clamp of claim 2, wherein: One end of the tensioning rod (534) is fixedly connected with the inner wall of the bearing seat (533).

4. The PCB test needle clamp of claim 1, wherein: The sliding groove (532) is internally rotatably provided with a threaded rod (535) connected with the driving motor (536), and one end of the bearing seat (533) is threadedly sleeved on the outer wall of the threaded rod (535).

5. The PCB test needle clamp of claim 1, wherein: The outer walls of the linkage rod (51), the rotating seat (4) and the tensioning rod (534) are all fixedly provided with a belt pulley (6) for limiting the connecting belt (52).

6. The PCB test needle clamp of claim 5, wherein: The rotating seat (4) is internally provided with a control device for controlling the extension and retraction of the electric telescopic rod (2).

7. The PCB test needle clamp of claim 1, wherein: The control seat (3) is internally provided with a driving device for driving the rotation of the rotating seat (4). One end of the linkage rod (51) is movably connected with a supporting plate, and the supporting plate is fixedly connected with a moving plate supporting the test needle.

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