Detection device of PLC circuit board for power system

Abstract

The utility model belongs to the field of circuit board detection devices, and particularly relates to a PLC circuit board detection device for an electric power system. The technical problem is that the detection device fixes a probe on a detection plate in a fixed typesetting mode, and the applicability to circuit boards of different models is limited. According to the technical scheme, the detection device of the PLC circuit board for the power system comprises a base plate assembly; the device further comprises a clamping assembly, a lifting assembly, a placement plate assembly, a detection block assembly and a cover plate assembly. According to the utility model, the corresponding number of contact terminals are inserted into the second groove bodies, the T-shaped guide blocks slide into the inner walls of the pin grooves under the action of the springs, the two T-shaped guide blocks on the contact terminals are electrically connected with the detection plate through the pin grooves, and when the detection plate descends, the probe group is driven to contact with the contacts of the PLC circuit board below, so that the PLC circuit board can be detected. Therefore, the circuit board is detected, and the problem that the applicability to circuit boards of different models is limited due to the fact that the position of the probe of the detection board is inconvenient to adjust is solved.

Description

Technical Field

[0001] The utility model belongs to the field of circuit board detection devices, and in particular relates to a detection device for a PLC circuit board used in an electric power system. Background Art

[0002] The PLC circuit board is the core of the industrial automation system. It has built-in PLC functions and controls external devices through programming to achieve efficient, safe and reliable automated production. Its detection device is the key to ensuring the stable operation of the system. It can comprehensively detect and solve problems, improve production efficiency and equipment reliability. In the existing technology, workers use contact pens to manually detect each contact point on the circuit board. This method is not only inefficient, but also prone to errors. In order to improve efficiency, although a fixed layout method is designed to fix the probe on the detection board, when other types of circuit boards need to be detected, the corresponding detection board needs to be replaced, which not only increases the workload and cost, but also reduces the detection efficiency. Utility Model Content

[0003] In order to overcome the problem that it is inconvenient to adjust the position of the probe on the detection board during the detection of the PLC circuit board, resulting in limited adaptability of the detection board to different models of PLC circuit boards.

[0004] The technical solution of the utility model is: a detection device for a PLC circuit board for an electric power system, comprising a pad assembly; further comprising a clamping assembly, a lifting assembly, a placement plate assembly, a detection block assembly and a cover assembly; a clamping assembly for clamping is arranged on the pad assembly; a lifting assembly for lifting is arranged on the clamping assembly; a placement plate assembly for detection is arranged on the lifting assembly; a detection block assembly for measuring is arranged on the placement plate assembly; and a cover assembly for fixing is arranged on the detection block assembly.

[0005] Preferably, when the PLC circuit board needs to be inspected, the circuit board is placed on a pad assembly, clamped by a clamping assembly, a corresponding detection block assembly is installed on the placement plate assembly, and then sealed and fixed by a cover plate assembly. The lifting assembly is then turned on to move the placement plate assembly downward so that the probe of the detection block assembly contacts the contact of the circuit board to perform inspection on the circuit board. When other types of PLC circuit boards need to be inspected, the cover plate assembly is removed from the placement plate assembly, the corresponding detection block assembly is placed according to the corresponding model, and then the cover plate assembly is used to seal and fix the detection block assembly. The lifting assembly is turned on to perform inspection. This solves the problem that the traditional contact pen detection method is inefficient and error-prone. In order to improve efficiency, although a fixed layout method is designed to fix the probe on the detection plate, it has limited applicability to circuit boards of different models.

[0006] Preferably, the pad assembly includes a rubber plate, a PLC circuit board and a first groove body; the upper end of the rubber plate is provided with a uniformly distributed first groove body; the PLC circuit board is movably arranged on the rubber plate, and by placing the PLC circuit board on the upper end of the rubber plate, the friction of the PLC circuit board on the rubber plate can be increased through the first groove body provided on the upper end of the rubber plate, thereby preventing sliding during detection and causing inaccurate detection.

[0007] Preferably, the clamping assembly includes a first fixed block, a through hole, a clamping plate and a latch; the first fixed block is fixedly connected to the front and rear ends of the rubber plate; two through holes are provided at the upper end of the first fixed block; a clamping plate is provided at the upper end of the first fixed block; the latch passes through the clamping plate and is fixed to the inner wall of the through hole, and by rotating the four clamping plates on the first fixed block, the clamping plates are rotated on the outer wall of the latch, and the clamping plates are rotated above the PLC circuit board, and the PLC circuit board is clamped by the deformation reaction force generated by the clamping plates themselves.

[0008] Preferably, the lifting assembly includes an electric cylinder and a second fixed block; the front end of the first fixed block located at the front end of the rubber plate is fixedly connected to the electric cylinder; the upper end of the telescopic rod of the electric cylinder is fixedly connected to the second fixed block, and the telescopic rod of the electric cylinder drives the subsequent detection assembly to move up and down by turning on the electric cylinder.

[0009] Preferably, the placement plate assembly includes a detection plate, a rubber pad, a second slot body, a pin groove, a first fixed column, a movable clamp block and a fourth slot body; the detection plate is fixedly connected to the rear end of the second fixed block; the rubber pad is fixedly connected to the lower end of the detection plate; the upper end of the detection plate is provided with a second slot body evenly distributed; the lower end of the second slot body is penetrated by a fourth slot body; the left and right inner walls of the second slot body are provided with pin grooves; the first fixed column is fixedly connected to the four corners of the upper end of the detection plate; the outer wall of the first fixed column is rotatably provided with a movable clamp block, which drives the rubber pad to move downward when the detection plate descends, thereby strengthening the clamping and fixation of the PLC circuit board below.

[0010] Preferably, the detection block assembly includes a contact terminal, a T-shaped slot, a spring, a T-shaped guide block and a probe group; the inner wall of the second slot body is movably provided with a contact terminal; the outer walls of the left and right ends of the contact terminal are provided with T-shaped slots; the inner wall of the T-shaped slot is movably provided with a T-shaped guide block; a symmetrical spring is fixedly connected to one end of the two T-shaped slots close to each other; the other end of the spring is fixedly connected to one end of the two T-shaped guide blocks close to each other; the contact terminal and the T-shaped guide block are electrically connected; the lower end of the contact terminal is fixedly connected to the probe group; the ends of the two T-shaped guide blocks away from each other are rounded; the two T-shaped guide blocks are The ends of the blocks that are away from each other are adapted to the pin groove; the lower end of the inner wall of the second slot body is fitted with the lower end of the contact terminal; the upper part of the outer wall of the probe group is fitted with the inner wall of the fourth slot body; the pin groove is electrically connected to the T-shaped guide block, and by inserting a corresponding number of contact terminals into the second slot body, the T-shaped guide block slides into the inner wall of the pin groove under the action of the spring, and the two T-shaped guide blocks on the contact terminal are electrically connected to the detection board through the pin groove. When the detection board descends, it will drive the probe group to contact the contacts of the PLC circuit board below, thereby detecting the circuit board.

[0011] Preferably, the cover plate assembly includes a third fixed block, a slide groove and a third groove body; a third fixed block is movably provided at the upper end of the detection plate; the outer wall of the first fixed column is fitted with the inner wall of the slide groove; the lower end of the movable card block is fitted with the upper end of the contact terminal; the lower end of the third fixed block is provided with a third groove body that is evenly distributed; the four sides of the third groove body are in the same plane as the four side sides of the second groove body, and by placing the slide groove on the third fixed block along the first fixed column above the detection plate, the upper end of the contact terminal is fitted with the upper end of the inner wall of the third groove body, and by rotating the four movable card blocks at the upper end of the third fixed block, the third fixed block is fixed above the detection plate, thereby fixing the position of the contact terminal.

[0012] Beneficial effects of the utility model:

[0013] 1. By inserting a corresponding number of contact terminals into the second slot body, the T-shaped guide block slides into the inner wall of the pin slot under the action of the spring, and the two T-shaped guide blocks on the contact terminal are electrically connected to the detection board through the pin slot. When the detection board descends, it will drive the probe group to contact the contact points of the PLC circuit board below, so as to detect the circuit board, solving the problem of inconvenient adjustment of the position of the probe on the detection board, resulting in limited applicability to circuit boards of different models;

[0014] 2. By placing the slide groove on the third fixed block along the first fixed column above the detection plate, the upper end of the contact terminal is fitted with the upper end of the inner wall of the third slot body, and by rotating the four movable blocks at the upper end of the third fixed block, the third fixed block is fixed above the detection plate, thereby fixing the position of the contact terminal;

[0015] 3. By rotating the four clamping pieces on the first fixed block, the clamping pieces are rotated on the outer wall of the pin, and the clamping pieces are rotated above the PLC circuit board. The PLC circuit board is clamped by the deformation reaction force generated by the clamping pieces themselves. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a schematic diagram of the three-dimensional structure disassembly of a detection device for a PLC circuit board for a power system of the utility model;

[0017] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of a detection device for a backing plate assembly and a clamping assembly of a PLC circuit board for a power system;

[0018] Figure 3 What is shown is a three-dimensional structural schematic diagram of a placement board assembly of a detection device for a PLC circuit board for a power system according to the utility model;

[0019] Figure 4 The present invention shows a schematic diagram of the three-dimensional structure of a detection block assembly of a detection device for a PLC circuit board for a power system;

[0020] Figure 5 What is shown is a three-dimensional structural schematic diagram of a cover assembly of a detection device for a PLC circuit board for an electric power system according to the utility model.

[0021] The marks in the accompanying drawings are: 1- pad assembly, 101- rubber plate, 102- PLC circuit board, 103- first slot body, 2- clamping assembly, 201- first fixed block, 202- through hole, 203- clamping plate, 204- latch, 3- lifting assembly, 301- electric cylinder, 302- second fixed block, 4- placement plate assembly, 401- detection plate, 402- rubber pad, 403- second slot body, 404- pin groove, 405- first fixed column, 406- movable card block, 407- fourth slot body, 5- detection block assembly, 501- contact terminal, 502- T-slot, 503- spring, 504- T-guide block, 505- probe group, 6- cover assembly, 601- third fixed block, 602- slide groove, 603- third slot body. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] See also Figure 1The utility model provides an embodiment: a detection device for a PLC circuit board for an electric power system, comprising a pad assembly 1; further comprising a clamping assembly 2, a lifting assembly 3, a placement plate assembly 4, a detection block assembly 5 and a cover assembly 6; the pad assembly 1 is provided with a clamping assembly 2 for clamping; the clamping assembly 2 is provided with a lifting assembly 3 for lifting; the lifting assembly 3 is provided with a placement plate assembly 4 for detection; the placement plate assembly 4 is provided with a detection block assembly 5 for measurement; the detection block assembly 5 is provided with a cover assembly 6 for fixing.

[0024] See also Figure 1-2 In this embodiment, the pad assembly 1 includes a rubber plate 101, a PLC circuit board 102 and a first slot 103; the upper end of the rubber plate 101 is provided with a uniformly distributed first slot 103; the PLC circuit board 102 is movably arranged on the rubber plate 101, the clamping assembly 2 includes a first fixing block 201, a through hole 202, a clamping piece 203 and a latch 204; the front and rear ends of the rubber plate 101 are fixedly connected with the first fixing block 201; the upper end of the first fixing block 201 is provided with two through holes 202; the upper end of the first fixing block 201 is provided with a clamping piece 203; the latch 204 passes through the clamping piece 203 and is fixedly connected to the inner wall of the through hole 202, the lifting assembly 3 includes an electric cylinder 301 and a second fixing block 302; the front end of the first fixing block 201 located at the front end of the rubber plate 101 is fixedly connected with the electric cylinder 301; the upper end of the telescopic rod of the electric cylinder 301 is fixedly connected with the second fixing block 302.

[0025] See also Figure 3 In the present embodiment, the placement plate assembly 4 includes a detection plate 401, a rubber pad 402, a second slot body 403, a pin groove 404, a first fixed column 405, an active block 406 and a fourth slot body 407; the rear end of the second fixed block 302 is fixedly connected to the detection plate 401; the lower end of the detection plate 401 is fixedly connected to the rubber pad 402; the upper end of the detection plate 401 is provided with evenly distributed second slot bodies 403; the lower end of the second slot body 403 is penetrated by a fourth slot body 407; the left and right inner walls of the second slot body 403 are provided with pin grooves 404; the first fixed column 405 is fixedly connected to the four corners of the upper end of the detection plate 401; the outer wall of the first fixed column 405 is rotatably provided with an active block 406.

[0026] See also Figure 4In this embodiment, the detection block assembly 5 includes a contact terminal 501, a T-shaped slot 502, a spring 503, a T-shaped guide block 504 and a probe group 505; the inner wall of the second slot body 403 is movably provided with a contact terminal 501; the outer walls of the left and right ends of the contact terminal 501 are provided with T-shaped slots 502; the inner wall of the T-shaped slot 502 is movably provided with a T-shaped guide block 504; the ends of the two T-shaped slots 502 close to each other are fixedly connected with symmetrical springs 503; the other end of the spring 503 is fixedly connected to the two T-shaped guide blocks 504 are close to each other; the contact terminal 501 and the T-shaped guide block 504 are electrically connected; a probe group 505 is fixed to the lower end of the contact terminal 501; the ends of the two T-shaped guide blocks 504 that are away from each other are rounded; the ends of the two T-shaped guide blocks 504 that are away from each other are adapted to the pin groove 404; the lower end of the inner wall of the second slot body 403 is fitted with the lower end of the contact terminal 501; the upper part of the outer wall of the probe group 505 is fitted with the inner wall of the fourth slot body 407; the pin groove 404 is electrically connected to the T-shaped guide block 504.

[0027] See also Figure 5 In this embodiment, the cover plate assembly 6 includes a third fixed block 601, a slide groove 602 and a third slot body 603; the third fixed block 601 is movably provided at the upper end of the detection plate 401; the outer wall of the first fixed column 405 is in contact with the inner wall of the slide groove 602; the lower end of the movable clamping block 406 is in contact with the upper end of the contact terminal 501; the lower end of the third fixed block 601 is provided with evenly distributed third slot bodies 603; the four sides of the third slot body 603 are in the same plane with the four side sides of the second slot body 403.

[0028] When detection work is required, a corresponding number of contact terminals 501 are inserted into the second slot body 403, so that the T-shaped guide block 504 slides into the inner wall of the pin slot 404 under the action of the spring 503, and the two T-shaped guide blocks 504 on the contact terminal 501 are electrically connected to the detection board 401 through the pin slot 404;

[0029] Next, by placing the slide groove 602 on the third fixing block 601 along the first fixing column 405 above the detection plate 401, the upper end of the contact terminal 501 is fitted with the upper end of the inner wall of the third slot body 603, and by rotating the four movable blocks 406 at the upper end of the third fixing block 601, the third fixing block 601 is fixed above the detection plate 401, thereby fixing the position of the contact terminal 501, and by turning on the electric cylinder 301, the telescopic rod of the electric cylinder 301 drives the subsequent detection components to move up and down. When the detection plate 401 descends, it drives the probe group 505 to contact the contact points of the PLC circuit board 102 below, thereby detecting the circuit board;

[0030] When the circuit board needs to be fixed, the PLC circuit board 102 is placed on the upper end of the rubber plate 101, and the four clamping pieces 203 are rotated on the first fixed block 201, so that the clamping pieces 203 rotate on the outer wall of the pin 204, and the clamping pieces 203 are rotated to the top of the PLC circuit board 102, and the PLC circuit board 102 is clamped by the deformation reaction force generated by the clamping pieces 203 themselves.

[0031] Through the above steps, when it is necessary to detect the PLC circuit board, the circuit board is placed on the pad assembly 1, clamped by the clamping assembly 2, the corresponding detection block assembly 5 is installed on the placement plate assembly 4, and then sealed and fixed with the cover assembly 6, and then the lifting assembly 3 is opened to move the placement plate assembly 4 downward so that the contacts of the detection block assembly 5 contact the contacts of the circuit board to detect the circuit board. When it is necessary to detect other types of PLC circuit boards, the cover assembly 6 is removed from the placement plate assembly 4, the corresponding detection block assembly 5 is placed according to the corresponding model, and then the cover assembly 6 is used to seal and fix the detection block assembly 5, and the lifting assembly 3 is opened to perform detection, thereby solving the problem of limited applicability to different types of PLC circuit boards due to the inconvenience in adjusting the position of the probe.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A detection device for a PLC circuit board for an electric power system, comprising a backing plate assembly (1); characterized in that: The device also comprises a clamping assembly (2), a lifting assembly (3), a placement plate assembly (4), a detection block assembly (5) and a cover plate assembly (6); the backing plate assembly (1) is provided with a clamping assembly (2) for clamping; the clamping assembly (2) is provided with a lifting assembly (3) for lifting; the lifting assembly (3) is provided with a placement plate assembly (4) for detection; the placement plate assembly (4) is provided with a detection block assembly (5) for measurement; and the detection block assembly (5) is provided with a cover plate assembly (6) for fixing.

2. The detection device for a PLC circuit board for an electric power system according to claim 1, characterized in that: The pad assembly (1) comprises a rubber plate (101), a PLC circuit board (102) and a first slot body (103); the upper end of the rubber plate (101) is provided with evenly distributed first slot bodies (103); and the PLC circuit board (102) is movably arranged on the rubber plate (101).

3. The detection device for a PLC circuit board for an electric power system according to claim 2, characterized in that: The clamping assembly (2) comprises a first fixing block (201), a through hole (202), a clamping sheet (203) and a latch (204); the first fixing block (201) is fixedly connected to the front and rear ends of the rubber plate (101); two through holes (202) are formed at the upper end of the first fixing block (201); the clamping sheet (203) is arranged at the upper end of the first fixing block (201); and the latch (204) passes through the clamping sheet (203) and is fixedly connected to the inner wall of the through hole (202).

4. The detection device for a PLC circuit board for an electric power system according to claim 2, characterized in that: The lifting assembly (3) comprises an electric cylinder (301) and a second fixing block (302); the front end of the first fixing block (201) located at the front end of the rubber plate (101) is fixedly connected to the electric cylinder (301); and the upper end of the telescopic rod of the electric cylinder (301) is fixedly connected to the second fixing block (302).

5. The detection device for a PLC circuit board for an electric power system according to claim 4, characterized in that: The placement plate assembly (4) comprises a detection plate (401), a rubber pad (402), a second slot body (403), a pin groove (404), a first fixed column (405), a movable clamping block (406) and a fourth slot body (407); the rear end of the second fixed block (302) is fixedly connected to the detection plate (401); the lower end of the detection plate (401) is fixedly connected to the rubber pad (402); the upper end of the detection plate (401) is provided with evenly distributed second slot bodies (403); the lower end of the second slot body (403) is penetrated by a fourth slot body (407); the left and right inner walls of the second slot body (403) are provided with pin grooves (404); the first fixed column (405) is fixedly connected to the four corners of the upper end of the detection plate (401); and the outer wall of the first fixed column (405) is rotatably provided with a movable clamping block (406).

6. The detection device for a PLC circuit board for an electric power system according to claim 5, characterized in that: The detection block assembly (5) comprises a contact terminal (501), a T-shaped slot (502), a spring (503), a T-shaped guide block (504) and a probe group (505); the contact terminal (501) is movably arranged on the inner wall of the second slot body (403); the left and right outer walls of the contact terminal (501) are provided with T-shaped slots (502); the inner wall of the T-shaped slot (502) is movably provided with a T-shaped guide block (504); a symmetrical spring (503) is fixedly connected to one end of the two T-shaped slots (502) close to each other; the other end of the spring (503) is fixedly connected to the two T-shaped guide blocks (504); 4) one end close to each other; the contact terminal (501) and the T-shaped guide block (504) are electrically connected; a probe group (505) is fixedly connected to the lower end of the contact terminal (501); the ends of the two T-shaped guide blocks (504) that are away from each other are rounded; the ends of the two T-shaped guide blocks (504) that are away from each other are adapted to the pin groove (404); the lower end of the inner wall of the second slot body (403) is in contact with the lower end of the contact terminal (501); the upper part of the outer wall of the probe group (505) is in contact with the inner wall of the fourth slot body (407); and the pin groove (404) and the T-shaped guide block (504) are electrically connected.

7. The detection device for a PLC circuit board for an electric power system according to claim 5, characterized in that: The cover plate assembly (6) comprises a third fixing block (601), a slide groove (602) and a third groove body (603); the upper end of the detection plate (401) is movably provided with the third fixing block (601); the outer wall of the first fixing column (405) is fitted with the inner wall of the slide groove (602); the lower end of the movable clamping block (406) is fitted with the upper end of the contact terminal (501); the lower end of the third fixing block (601) is provided with evenly distributed third groove bodies (603); the four sides of the third groove body (603) are in the same plane as the four side sides of the second groove body (403).

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