PLC test fixture

Abstract

The utility model relates to the technical field of clamps, and provides a PLC test clamp, which comprises a base and a mounting frame, the two first sliding grooves are formed in the opposite positions of the inner wall of the base. Sliding blocks are movably embedded in the two first sliding grooves. The two second sliding grooves are formed in the inner wall, close to the opposite side of the mounting frame, of the base. According to the clamping device, when the pull rod on the surface of the protruding block is manually rotated, the protruding block is driven to rotate on the outer surfaces of the moving plates, the two ends of the protruding block are connected to the surfaces of the moving plates respectively, and the connecting spring is connected between the two moving plates, so that the clamping plates on the surfaces of the two moving plates move relatively; and meanwhile, sliding columns and sliding blocks on the surfaces of the moving plates are movably embedded in the inner walls of second sliding grooves and first sliding grooves correspondingly, so that the moving direction of the moving plates is limited, the PLC chips can be rapidly clamped through relative movement of the clamping plates, and meanwhile operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of fixtures, in particular to a PLC test fixture. Background Art

[0002] PLC, also known as programmable logic controller, is a digital electronic device with a microprocessor. It is a digital logic controller used for automated control and can load control instructions into memory for storage and execution at any time.

[0003] However, in the prior art, such as Chinese patent No. CN201922481851.3, in particular, a fixing fixture for testing a PLC chip, includes a fixed base, a movable base, a pressure block, a locking bolt and an adjusting bolt, wherein the bottom end of the movable base is formed with a fixing groove for the top of the fixed base to be embedded, and the locking bolt transversely penetrates the movable base and extends into the fixing groove to press the fixed base; a boss is formed at the top of the movable base, and the pressure block is slidably connected to the top surface of the movable base in the direction of the boss, and a clamping portion extending in the direction of the boss is formed at the front edge of the top of the pressure block, wherein the pressure block, the clamping portion, the movable base and the boss together form a clamping position for clamping and fixing the chip, and the pressure block is provided with a vertically extending long adjustment hole, and the adjusting bolt vertically penetrates the long adjustment hole and is connected to the bolt hole pre-opened on the top surface of the movable base.

[0004] However, the prior art has the following disadvantages when used: the existing PLC chips have various specifications and sizes, so they need to be fixed by a fixture when testing the chips, and the existing test fixtures are often unable to adapt to different sizes and specifications, so there are certain limitations. At the same time, the operation of some fixtures is cumbersome. At the same time, some equipment cannot detect multiple positions of the chip during the chip detection process. Therefore, it is necessary to propose a highly applicable detection fixture. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that the existing PLC chips have various specifications and sizes, and need to be fixed by a fixture when testing the chips, while the existing test fixtures are often unable to adapt to different sizes and specifications, so there are certain limitations, and some fixtures are cumbersome to operate, and some equipment cannot detect multiple positions of the chip during the chip detection process, so it is necessary to propose a highly applicable detection fixture.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a PLC test fixture, comprising: a base and a mounting frame; two slide grooves 1, both of which are arranged at opposite positions of the inner wall of the base; a slider is movably embedded in the two slide grooves 1; and further comprising:

[0007] Two second slide grooves are both arranged on the inner wall of the base on the opposite side of the mounting frame, and the inner walls of the two second slide grooves are both movably embedded with slide columns;

[0008] Two movable plates are respectively fixedly mounted on the outer surfaces of the two sliding posts, and one side surface of the two movable plates away from the mounting frame is respectively fixedly mounted on the outer surfaces of the two sliding blocks;

[0009] The two connecting springs are both fixedly mounted on opposite ends of the two moving plates.

[0010] Preferably, a clamping plate is fixedly mounted on one side surface of the two movable plates close to the mounting frame, a positioning shaft is movably embedded in the inner wall at the center of the base, and a protrusion is movably embedded in the one side surface of the positioning shaft close to the mounting frame.

[0011] Preferably, the outer surfaces of the opposite sides of the protrusion are respectively fixedly mounted on the surfaces of the two movable plates, a pull rod is fixedly mounted on the surface of the protrusion on one side away from the mounting frame, and the inner walls of the opposite sides of the mounting frame are provided with limiting grooves.

[0012] Preferably, an electric push rod is fixedly installed at the center of the surface of one side of the mounting frame close to the base, a mounting panel is fixedly installed on the surface of the output end of the electric push rod, a limit rod is fixedly installed inside the mounting panel, and the outer surfaces on the opposite sides of the limit rod are movably embedded in the inner wall of the limit groove.

[0013] Preferably, a long groove is provided on one side surface of the mounting panel close to the base, a threaded rod is movably embedded inside the long groove, a testing device is movably embedded on the outer surface of the threaded rod, and the testing device is movably embedded on the inner wall of the long groove on the outer surface away from the base.

[0014] Preferably, a driving motor is fixedly mounted on the surface of one end of the threaded rod, a U-shaped frame is fixedly mounted on the surface of the driving motor on a side away from the mounting panel, and one side surface of the U-shaped frame is fixedly mounted on the surface of the mounting panel.

[0015] Compared with the prior art, the advantages and positive effects of the utility model are:

[0016] 1. A slide groove 1 and a slide groove 2 are opened inside the base. When the pull rod on the surface of the protrusion is manually rotated, the protrusion is driven to rotate on the outer surface of the moving plate. The two ends of the protrusion are respectively connected to the surface of the moving plate, and a connecting spring is connected between the two moving plates, so that the clamping plates on the surfaces of the two moving plates move relative to each other. At the same time, the sliding column and the sliding block on the surface of the moving plate are respectively movably embedded in the inner walls of the slide groove 2 and the slide groove 1, so as to limit the moving direction of the moving plate. The clamping plates move relative to each other, so that the PLC chip can be clamped quickly, and the operation is simple.

[0017] 2. The mounting frame on the surface is positioned through the base. When the electric push rod on the surface of the mounting frame works, the mounting panel on the output end surface is driven to move up and down. At the same time, the limit rod on the surface of the mounting panel is movably embedded in the inner wall of the limit groove to limit the position of the mounting panel when it moves. When the driving motor on the surface of the U-shaped frame works, the threaded rod on the surface of the output end is driven to rotate on the inner wall of the long groove. At the same time, a test device is movably embedded on the outer surface of the threaded rod, and the outer surface of the test device is movably embedded in the inner wall of the long groove, so that the position of the test device is adjusted, so that PLC chips of different heights can be detected and different positions on the chip surface can be detected, thereby improving applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A side view structural diagram of a PLC test fixture is provided for the utility model;

[0019] Figure 2 A cross-sectional structural schematic diagram of a PLC test fixture is provided for the utility model;

[0020] Figure 3 A schematic diagram of part of the internal structure of a PLC test fixture is provided for the utility model;

[0021] Figure 4 The utility model provides an enlarged structural schematic diagram of Figure A of a PLC test fixture.

[0022] Legend:

[0023] 1. Base; 101. Slide 1; 102. Slide 2; 103. Slider; 104. Moving plate; 1041. Clamping plate; 105. Sliding column; 106. Connecting spring; 107. Positioning shaft; 108. Bump; 109. Pull rod; 2. Mounting frame; 201. Limiting groove; 202. Electric push rod; 203. Mounting panel; 204. Limiting rod; 205. Long groove; 206. U-shaped frame; 207. Driving motor; 208. Threaded rod; 209. Testing device. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0026] Embodiment 1, as Figure 1-4 As shown, the utility model provides a PLC test fixture, including: a base 1 and a mounting frame 2; two slide grooves 101, both of which are arranged at opposite positions of the inner wall of the base 1; sliders 103 are movably embedded inside the two slide grooves 101; it also includes: two slide grooves 102, both of which are arranged on the inner wall of the base 1 on the opposite side of the mounting frame 2, and the inner walls of the two slide grooves 102 are movably embedded with slide columns 105; two moving plates 104, both of which are fixedly mounted on the outer surfaces of the two slide columns 105, and the side surfaces of the two moving plates 104 away from the mounting frame 2 are both fixedly mounted on the outer surfaces of the two sliders 103; two connecting springs 106, both of which are fixedly mounted on the opposite ends of the two moving plates 104.

[0027] In this embodiment, a slide groove 101 and a slide groove 102 are opened inside the base 1. When the pull rod 109 on the surface of the protrusion 108 is manually rotated, the protrusion 108 is driven to rotate on the outer surface of the movable plate 104. The two ends of the protrusion 108 are respectively connected to the surface of the movable plate 104, and a connecting spring 106 is connected between the two movable plates 104, so that the clamping plates 1041 on the surfaces of the two movable plates 104 move relative to each other. At the same time, the sliding column 105 and the slider 103 on the surface of the movable plate 104 are respectively movably embedded in the inner walls of the slide groove 102 and the slide groove 1 101, so as to limit the moving direction of the movable plate 104. The clamping plate 1041 moves relative to each other, so that the PLC chip can be quickly clamped, and the operation is simple.

[0028] Embodiment 2, a clamping plate 1041 is fixedly installed on the surface of one side of the two moving plates 104 close to the mounting frame 2, a positioning shaft 107 is movably embedded in the inner wall at the center of the base 1, a protrusion 108 is movably embedded in the surface of one side of the positioning shaft 107 close to the mounting frame 2, and the outer surfaces of the opposite sides of the protrusion 108 are respectively fixedly installed on the surfaces of the two moving plates 104, and a pull rod 109 is fixedly installed on the surface of the side of the protrusion 108 away from the mounting frame 2. A limiting groove 201 is provided on the inner wall of the opposite side of the mounting frame 2, an electric push rod 202 is fixedly installed at the center of the surface of one side of the mounting frame 2 close to the base 1, and a mounting panel 203 is fixedly installed on the surface of the output end of the electric push rod 202, and the mounting panel 203 is fixedly installed on the surface of the output end of the electric push rod 202. 3 is fixedly installed with a limit rod 204 inside, and the outer surfaces of the opposite sides of the limit rod 204 are movably embedded in the inner wall of the limit groove 201. A long groove 205 is opened on the surface of the side of the installation panel 203 close to the base 1, and a threaded rod 208 is movably embedded in the long groove 205. A testing device 209 is movably embedded on the outer surface of the threaded rod 208. The testing device 209 is movably embedded on the inner wall of the long groove 205 on the outer surface away from the base 1. A driving motor 207 is fixedly installed on the surface of one end of the threaded rod 208, and a U-shaped frame 206 is fixedly installed on the surface of the driving motor 207 away from the installation panel 203. One side surface of the U-shaped frame 206 is fixedly installed on the surface of the installation panel 203.

[0029] In this embodiment, the mounting frame 2 on the surface is positioned by the base 1. When the electric push rod 202 on the surface of the mounting frame 2 is working, it drives the mounting panel 203 on the output end surface to move up and down. At the same time, the limiting rod 204 on the surface of the mounting panel 203 is movably embedded in the inner wall of the limiting groove 201, so that the position of the mounting panel 203 is limited when moving. When the driving motor 207 on the surface of the U-shaped frame 206 is working, it drives the threaded rod 208 on the surface of the output end to rotate on the inner wall of the long groove 205. At the same time, the outer surface of the threaded rod 208 is movably embedded with a testing device 209, and the outer surface of the testing device 209 is movably embedded in the inner wall of the long groove 205, so that the position of the testing device 209 is adjusted, so that PLC chips of different heights can be detected and different positions on the chip surface can be detected at the same time, thereby improving applicability.

[0030] Working principle: a slide groove 101 and a slide groove 102 are provided inside the base 1. When the pull rod 109 on the surface of the protrusion 108 is manually rotated, the protrusion 108 is driven to rotate on the outer surface of the moving plate 104. The two ends of the protrusion 108 are respectively connected to the surface of the moving plate 104, and a connecting spring 106 is connected between the two moving plates 104, so that the clamping plates 1041 on the surfaces of the two moving plates 104 move relative to each other. At the same time, the sliding column 105 and the slider 103 on the surface of the moving plate 104 are respectively movably embedded in the inner walls of the slide groove 102 and the slide groove 101, so as to limit the moving direction of the moving plate 104. The clamping plate 1041 moves relative to each other, so that the PLC chip can be quickly clamped. At the same time, the operation is simple, and the surface installation through the base 1 The mounting frame 2 is positioned. When the electric push rod 202 on the surface of the mounting frame 2 works, it drives the mounting panel 203 on the output end surface to move up and down. At the same time, the limiting rod 204 on the surface of the mounting panel 203 is movably embedded in the inner wall of the limiting groove 201, so that the position of the mounting panel 203 is limited when it moves. When the driving motor 207 on the surface of the U-shaped frame 206 works, it drives the threaded rod 208 on the surface of the output end to rotate on the inner wall of the long groove 205. At the same time, the outer surface of the threaded rod 208 is movably embedded with a testing device 209, and the outer surface of the testing device 209 is movably embedded in the inner wall of the long groove 205, so as to adjust the position of the testing device 209, so as to detect PLC chips of different heights and detect different positions on the chip surface, thereby improving applicability.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A PLC test fixture, comprising: A base (1) and a mounting frame (2); two slide grooves (101), both of which are arranged at opposite positions of the inner wall of the base (1); sliders (103) are movably embedded in the two slide grooves (101); the feature is that it also includes: Two second slide grooves (102) are both arranged on the inner wall of the base (1) on the opposite side of the mounting frame (2), and the inner walls of the two second slide grooves (102) are both movably embedded with slide posts (105); The two movable plates (104) are respectively fixedly mounted on the outer surfaces of the two sliding posts (105); the surfaces of the two movable plates (104) on one side away from the mounting frame (2) are respectively fixedly mounted on the outer surfaces of the two sliding blocks (103); The two connecting springs (106) are fixedly mounted on opposite ends of the two moving plates (104).

2. A PLC test fixture according to claim 1, characterized in that: A clamping plate (1041) is fixedly mounted on one side surface of the two movable plates (104) close to the mounting frame (2); a positioning shaft (107) is movably embedded in the inner wall at the center of the base (1); and a protrusion (108) is movably embedded in the one side surface of the positioning shaft (107) close to the mounting frame (2).

3. A PLC test fixture according to claim 2, characterized in that: The outer surfaces of the opposite sides of the protrusion (108) are respectively fixedly mounted on the surfaces of the two movable plates (104), a pull rod (109) is fixedly mounted on the surface of the protrusion (108) on the side away from the mounting frame (2), and the inner walls of the opposite sides of the mounting frame (2) are provided with limiting grooves (201).

4. A PLC test fixture according to claim 3, characterized in that: An electric push rod (202) is fixedly mounted at the center of a surface of one side of the mounting frame (2) close to the base (1); a mounting panel (203) is fixedly mounted on the surface of the output end of the electric push rod (202); a limiting rod (204) is fixedly mounted inside the mounting panel (203); and the outer surfaces of the opposite sides of the limiting rod (204) are movably embedded in the inner wall of the limiting groove (201).

5. A PLC test fixture according to claim 4, characterized in that: A long groove (205) is provided on a side surface of the installation panel (203) close to the base (1), a threaded rod (208) is movably embedded inside the long groove (205), a testing device (209) is movably embedded on the outer surface of the threaded rod (208), and the testing device (209) is movably embedded on the inner wall of the long groove (205) away from the outer surface of the base (1).

6. A PLC test fixture according to claim 5, characterized in that: A driving motor (207) is fixedly mounted on the surface of one end of the threaded rod (208), a U-shaped frame (206) is fixedly mounted on the surface of a side of the driving motor (207) away from the mounting panel (203), and a side surface of the U-shaped frame (206) is fixedly mounted on the surface of the mounting panel (203).

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