Accidental bruise prevention device of PCB electrical testing machine

Abstract

The accidental bruise prevention device of the PCB electrical testing machine comprises a damping rod, a first clamping part is arranged on the side wall of the damping rod, a first clamping hole is formed in the first clamping part, the accidental bruise prevention device further comprises a locking structure connected with the first clamping part, the locking structure is further connected with a second clamping part, a second clamping hole is formed in the second clamping part, and the second clamping part is connected with the damping rod. When the locking structure is operated, the second clamping part can get close to or get away from the first clamping part, the second clamping part is driven by the locking structure to get close to the first clamping part, so that the first clamping hole and the second clamping hole are oppositely matched to clamp the guide rod, and therefore the end of the damping rod is opposite to the sliding block, and the damping rod is clamped by the sliding block. Therefore, when the device fails, the reciprocating sliding block on the electrical testing machine can be limited by the damping rod when falling off, the human body is prevented from being hurt, and the damping rod has buffering acting force to prevent the sliding block from being broken down.

Description

Technical Field

[0001] This utility model relates to the field of PCB testing, and in particular to a device for preventing accidental crushing damage to a PCB electrical testing machine. Background Technology

[0002] Electrical testing (E-TEST) is used to test the conductivity and insulation of PCBs to identify defects such as open circuits and short circuits. Because E-TEST machines typically use a cylinder to drive the upper test mold in a reciprocating motion, their operation is extremely dangerous. During the loading, unloading, and troubleshooting of the test mold, personnel often need to enter the hazardous area of ​​the reciprocating motion. E-TEST machines usually have safety devices, including dual-button start and photoelectric induction brakes. The former is a two-hand control safety device, and the latter is an interlocking safety device. However, these only protect the operator and are susceptible to safety hazards such as device failure. Utility Model Content

[0003] To address the aforementioned issues, this technical solution provides a device for preventing accidental crushing damage to a PCB electrical testing machine.

[0004] To achieve the above objectives, the technical solution is as follows:

[0005] A device for preventing accidental crushing injury in a PCB electrical testing machine includes a damping rod, a first clamping part on the side wall of the damping rod, a first clamping hole on the first clamping part, and a locking structure connected to the first clamping part. The locking structure is also connected to a second clamping part, the second clamping part having a second clamping hole. When the locking structure is operated, the second clamping part can move closer to or further away from the first clamping part.

[0006] In some embodiments, the locking structure includes a screw rotatably disposed within the first clamping portion, one end of the screw being threadedly engaged with the second clamping portion.

[0007] In some embodiments, the first clamping part is provided with a base plate, the base plate is provided with a limiting block, and the second clamping part is provided with a step that cooperates with the base plate, and the step is provided with a limiting groove that cooperates with the limiting block.

[0008] In some embodiments, the inner side of the first clamping part is provided with a spring, and the inner side of the second clamping part is provided with a mounting groove, with one end of the spring extending into the mounting groove and connecting to the second clamping part.

[0009] In some embodiments, one end of the screw is provided with a cavity, and the cavity is provided with a bearing connected to the first clamping part.

[0010] The beneficial effects of this application are:

[0011] This application uses a locking structure to bring the second clamping part closer to the first clamping part, so that the first clamping hole and the second clamping hole are matched to clamp the guide rod. In this way, the end of the damping rod is opposite to the slider. Therefore, when a device failure occurs, the reciprocating slider on the electrical testing machine will be limited by the damping rod to avoid injury to the human body. Secondly, the damping rod has a buffering force to prevent the slider from being punctured. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0013] Figure 1 This is an exploded structural diagram of an embodiment of the present invention. Figure 1 ;

[0014] Figure 2 This is an exploded structural diagram of an embodiment of the present invention. Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the second clamping part structure according to an embodiment of the present utility model;

[0016] Figure 4 This is a schematic diagram of the electrical test bench structure according to an embodiment of the present invention. Detailed Implementation

[0017] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] Please refer to Figures 1-4 As shown, a device for preventing accidental crushing damage to a PCB electrical testing machine includes a damping rod 1. The side wall of the damping rod 1 is provided with a first clamping part 2. The first clamping part 2 is provided with a first clamping hole and is semi-circular in design. It also includes a locking structure connected to the first clamping part 2. The locking structure is also connected to a second clamping part 3. The second clamping part 3 is provided with a second clamping hole and is semi-circular in design. When the locking structure is operated, the second clamping part 3 can move closer to or further away from the first clamping part 2.

[0019] This application uses a locking structure to bring the second clamping part closer to the first clamping part, so that the first clamping hole and the second clamping hole are matched to clamp the guide rod 100. In this way, the end of the damping rod is opposite to the slider 200. Thus, when a device failure occurs, the reciprocating slider on the electrical testing machine 300 will be limited by the damping rod to prevent injury to the human body. Secondly, the damping rod has a buffering effect to prevent the slider from being punctured.

[0020] In this embodiment, the locking structure includes a screw 4 rotatably disposed in the first clamping part 2. One end of the screw 4 is threadedly engaged with the second clamping part 3. Rotating one end of the screw causes the thread to drive the second clamping part to move relative to the first clamping part.

[0021] In this embodiment, the first clamping part 2 is provided with a base plate 5, and a limiting block 6 is provided on the base plate 5. The second clamping part 3 is provided with a step that cooperates with the base plate 5. A limiting groove 7 that cooperates with the limiting block 6 is provided in the step. The base plate is used to support the second clamping part. Under the limiting cooperation of the limiting groove and the limiting block, the second clamping part can only move horizontally relative to the first clamping part.

[0022] In this embodiment, the inner side of the first clamping part 2 is provided with a spring 8, and the inner side of the second clamping part 3 is provided with a mounting groove 9. One end of the spring 8 extends into the mounting groove 9 and is connected to the second clamping part 3, so as to prevent the second clamping part from completely disengaging from the first clamping part. Furthermore, when clamping the guide rod, the spring is in a tensioned state, which can further improve the clamping capacity.

[0023] In this embodiment, one end of the screw 4 is provided with a cavity 10, and the cavity 10 is provided with a bearing connected to the first clamping part 2.

[0024] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. A device for preventing accidental crushing damage to a PCB electrical testing machine, characterized in that, The device includes a damping rod (1), the side wall of which is provided with a first clamping part (2), the first clamping part (2) is provided with a first clamping hole, and a locking structure connected to the first clamping part (2). The locking structure is also connected with a second clamping part (3), the second clamping part (3) is provided with a second clamping hole. When the locking structure is operated, the second clamping part (3) can move closer to or further away from the first clamping part (2).

2. The anti-accidental crushing device for a PCB electrical testing machine according to claim 1, characterized in that: The locking structure includes a screw (4) rotatably disposed in the first clamping part (2), one end of the screw (4) being threadedly engaged with the second clamping part (3).

3. The anti-accidental crushing device for a PCB electrical testing machine according to claim 2, characterized in that: The first clamping part (2) is provided with a base plate (5), and a limiting block (6) is provided on the base plate (5). The second clamping part (3) is provided with a step that cooperates with the base plate (5), and a limiting groove (7) that cooperates with the limiting block (6) is provided in the step.

4. The anti-accidental crushing device for a PCB electrical testing machine according to claim 2, characterized in that: The inner side of the first clamping part (2) is provided with a spring (8), and the inner side of the second clamping part (3) is provided with a mounting groove (9). One end of the spring (8) extends into the mounting groove (9) and is connected to the second clamping part (3).

5. The anti-accidental crushing device for a PCB electrical testing machine according to claim 2, characterized in that: The screw (4) has a cavity (10) at one end, and the cavity (10) is provided with a bearing (11) connected to the first clamping part (2).

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