Automatic testing device for service life of switch

Abstract

The utility model discloses an automatic testing device for the service life of a switch, and the device comprises a testing platform, operation buttons, a switch clamping device, an emergency stop switch, a pneumatic clamping jaw, a servo motor, a T-shaped pressing plate, and a parallel-bar cylinder. The top end of the test platform is provided with a switch clamping device fixed by an embedded screw, the top end of the switch clamping device is provided with an emergency stop switch, a pneumatic clamping jaw is installed above the emergency stop switch, the top end of the pneumatic clamping jaw is provided with a servo motor, and the rear end above the emergency stop switch is provided with a T-shaped pressing plate. The top end of the T-shaped pressing plate is provided with a parallel-bar air cylinder fixed through a screw. According to the testing device, through reasonable design, the emergency stop switch can be stably clamped, the service life of pressing and rotating can be tested, the automation degree is high, and the detection efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to a testing device, in particular to an automatic testing device for switch life. Background Art

[0002] In today's industrial safety field, emergency stop switches are production equipment with high safety requirements. They are necessary safety protection devices in industrial production. Their importance is self-evident. When heavy machinery and electrical equipment fail or are abnormal, the emergency stop switch needs to be pressed to perform an emergency stop to protect the safety of personnel and property. Therefore, the emergency stop switch must undergo strict automated testing of its reliability and service life before leaving the factory. The test devices currently used have a low degree of automation and low efficiency. Therefore, an automated switch life test device is needed. Utility Model Content

[0003] The utility model aims to provide a switch life automatic testing device to solve the above technical problems.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A switch life automation testing device comprises a testing platform, an operating button, a switch clamping device, an emergency stop switch, a pneumatic clamp, a servo motor, a "T"-shaped pressure plate, and a double-bar cylinder. A symmetrically distributed operating button is installed in the middle of the front end of the testing platform, a switch clamping device fixed with embedded screws is installed on the top of the testing platform, an emergency stop switch is placed on the top of the switch clamping device, a pneumatic clamp is installed above the emergency stop switch, a servo motor is installed on the top of the pneumatic clamp, a "T"-shaped pressure plate is installed at the rear end above the emergency stop switch, and a double-bar cylinder fixed with screws is installed on the top of the "T"-shaped pressure plate.

[0006] On the basis of the above technical scheme, the switch clamping device includes a clamping platform, a fixed clamping plate, a movable clamping plate, a guide through hole, a rubber clamping rod, a spring, and an electric push rod. A fixed clamping plate fixed by welding is installed on the left side of the top of the clamping platform, and a movable clamping plate is installed on the right side of the fixed clamping plate. The left end surface of the movable clamping plate is provided with equidistant and symmetrically distributed guide through holes and a movably connected rubber clamping rod is nested inside. A spring is installed in the middle of the right end of the rubber clamping rod, and the other end of the spring is fixed on the inside of the movable clamping plate. An electric push rod fixed by bolts is installed in the middle of the right end of the movable clamping plate. The electric push rod is installed on the right end of the inner side of the clamping platform and is connected to the operation button through wires.

[0007] On the basis of the above technical scheme, the "T"-shaped pressure plate includes a fixed pressure plate, a connecting threaded hole, a movable pressure plate, a guide block, a guide groove, a silicone pad, a limiting threaded hole, and a limiting screw. The top surface of the fixed pressure plate is provided with equidistant and symmetrically distributed connecting threaded holes. A movable pressure plate is installed in the middle of the front end of the fixed clamp. Guide blocks that are integrally welded and fixed are installed on both sides of the movable pressure plate and are plugged into the guide groove on the inner side of the fixed pressure plate. A silicone pad that is bonded and fixed is installed at the bottom end of the movable pressure plate. Symmetrically distributed limiting threaded holes are opened in front of the left and right ends of the fixed pressure plate and threaded limiting screws are installed on the inside.

[0008] Compared with the prior art, the utility model has the following advantages: the detection device of the utility model can stably clamp the emergency stop switch through the switch clamping device, and the electric control saves time and effort, and then the "T"-shaped pressure plate with adjustable stroke cooperates with the double-bar cylinder to perform a pressing test, and finally cooperates with the pneumatic clamp and servo motor to perform a rotation test on the switch. It has a high degree of automation, a simple structure, and is easy to operate, which further improves the detection efficiency of the emergency stop button. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the appearance structure of the utility model.

[0010] Figure 2 This is a schematic diagram of the structure of the switch clamping device of the utility model.

[0011] Figure 3 This is a schematic diagram of the "T"-shaped pressure plate structure of the utility model.

[0012] In the figure: 1. test platform, 2. operation button, 3. switch clamping device, 4. emergency stop switch, 5. pneumatic clamping jaws, 6. servo motor, 7. "T" type pressure plate, 8. double-bar cylinder, 9. clamping platform, 10. fixed clamping plate, 11. movable clamping plate, 12. guide through hole, 13. rubber clamping rod, 14. spring, 15. electric push rod, 16. fixed pressure plate, 17. connecting threaded hole, 18. movable pressure plate, 19. guide block, 20. guide groove, 21. silicone pad, 22. limit threaded hole, 23. limit screw. DETAILED DESCRIPTION

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] like Figure 1-3As shown, a switch life automation test device includes a test platform 1, an operating button 2, a switch clamping device 3, an emergency stop switch 4, a pneumatic clamp 5, a servo motor 6, a "T"-shaped pressure plate 7, and a double-bar cylinder 8. The test platform 1 is provided with a symmetrically distributed operating button 2 in the middle of the front end, the test platform 1 is provided with a switch clamping device 3 fixed with embedded screws on the top, the emergency stop switch 4 is placed on the top of the switch clamping device 3, the emergency stop switch 4 is installed with a pneumatic clamp 5 above the emergency stop switch 4, the servo motor 6 is installed on the top of the pneumatic clamp 5, the "T"-shaped pressure plate 7 is installed at the rear end above the emergency stop switch 4, and the double-bar cylinder 8 fixed with screws is installed on the top of the "T"-shaped pressure plate 7.

[0015] The switch clamping device 3 includes a clamping platform 9, a fixed clamping plate 10, a movable clamping plate 11, a guide through hole 12, a rubber clamping rod 13, a spring 14, and an electric push rod 15. A welded fixed clamping plate 10 is installed on the left side of the top of the clamping platform 9, and a movable clamping plate 11 is installed on the right side of the fixed clamping plate 10. The left end surface of the movable clamping plate 11 is provided with equidistant and symmetrically distributed guide through holes 12 and a movably connected rubber clamping rod 13 is nested inside. A spring 14 is installed in the middle of the right end of the rubber clamping rod 13, and the other end of the spring 14 is fixed on the inside of the movable clamping plate 11. An electric push rod 15 fixed by bolts is installed in the middle of the right end of the movable clamping plate 11. The electric push rod 15 is installed on the right end of the inner side of the clamping platform 9 and is connected to the operation button 2 through electric wires.

[0016] The "T"-shaped pressure plate 7 includes a fixed pressure plate 16, a connecting threaded hole 17, a movable pressure plate 18, a guide block 19, a guide groove 20, a silicone pad 21, a limiting threaded hole 22, and a limiting screw 23. The top surface of the fixed pressure plate 16 is provided with equidistant and symmetrically distributed connecting threaded holes 17, and a movable pressure plate 18 is installed in the middle of the front end of the fixed pressure plate 16. The movable pressure plate 18 is provided with integrally welded guide blocks 19 on both sides and plug-connected with the guide groove 20 on the inner side of the fixed pressure plate 16. The bottom end of the movable pressure plate 18 is provided with a silicone pad 21 fixed by bonding. The fixed pressure plate 16 is provided with symmetrically distributed limiting threaded holes 22 in front of the left and right ends and a threaded limiting screw 23 is installed on the inside.

[0017] The working principle of the utility model is as follows: first, the emergency stop switch to be tested is placed between the fixed clamping plate and the movable clamping plate on the top of the clamping platform, and then the electric push rod is started by the operation button to drive the movable clamping plate to squeeze the emergency stop switch. Then, in the process of the movable clamping plate squeezing the emergency stop switch, the rubber clamping rod contacts the emergency stop switch and squeezes the spring according to the different shapes of the emergency stop switch to improve the stability of the clamping. Then, the movable pressing plate is pulled out or returned from the inside of the fixed pressing plate to adjust the downward stroke of the pressing plate and the movable pressing plate is limited by the limit screw squeezing guide block to avoid detection errors caused by the activity of the movable pressing plate. Finally, the pneumatic clamping claw is used to clamp the knob of the emergency stop switch product and the servo motor is used to rotate the air clamp to the left / right to a fixed angle to test the knob switch. Then the air clamp releases the emergency stop switch product knob to reset. This reciprocating process is used to test the service life of the emergency stop switch.

[0018] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. A switch life automatic test device, comprising a test platform (1), an operating button (2), a switch clamping device (3), an emergency stop switch (4), a pneumatic clamp (5), a servo motor (6), a "T"-shaped pressure plate (7), and a double-bar cylinder (8), characterized in that: A symmetrically distributed operating button (2) is installed at the middle of the front end of the test platform (1); a switch clamping device (3) fixed by an embedded screw is installed at the top of the test platform (1); an emergency stop switch (4) is placed at the top of the switch clamping device (3); a pneumatic clamp (5) is installed above the emergency stop switch (4); a servo motor (6) is installed at the top of the pneumatic clamp (5); a "T"-shaped pressure plate (7) is installed at the rear end above the emergency stop switch (4); and a double-bar cylinder (8) fixed by screws is installed at the top of the "T"-shaped pressure plate (7).

2. The switch life automatic testing device according to claim 1, characterized in that: The switch clamping device (3) comprises a clamping platform (9), a fixed clamping plate (10), a movable clamping plate (11), a guide through hole (12), a rubber clamping rod (13), a spring (14), and an electric push rod (15). A fixed clamping plate (10) fixed by welding is installed on the left side of the top of the clamping platform (9), and a movable clamping plate (11) is installed on the right side of the fixed clamping plate (10). The left end surface of the movable clamping plate (11) is provided with guide through holes (12) symmetrically distributed at equal intervals, and a movably connected rubber clamping rod (13) is embedded inside. A spring (14) is installed in the middle of the right end of the rubber clamping rod (13), and the other end of the spring (14) is fixed on the inside of the movable clamping plate (11). An electric push rod (15) fixed by bolts is installed in the middle of the right end of the movable clamping plate (11). The electric push rod (15) is installed at the right end of the inner side of the clamping platform (9) and is connected to the operation button (2) through an electric wire.

3. The switch life automatic testing device according to claim 1, characterized in that: The "T"-shaped pressure plate (7) comprises a fixed pressure plate (16), a connecting threaded hole (17), a movable pressure plate (18), a guide block (19), a guide groove (20), a silicone pad (21), a limiting threaded hole (22), and a limiting screw (23). The top surface of the fixed pressure plate (16) is provided with equidistant and symmetrically distributed connecting threaded holes (17). The movable pressure plate (18) is installed in the middle of the front end of the fixed pressure plate (16). The two sides of the movable pressure plate (18) are provided with integrally welded and fixed guide blocks (19) and are plug-connected with the guide groove (20) on the inner side of the fixed pressure plate (16). The bottom end of the movable pressure plate (18) is provided with an adhesively fixed silicone pad (21). The front of the left and right ends of the fixed pressure plate (16) are provided with symmetrically distributed limiting threaded holes (22) and the inner side is provided with a threaded limiting screw (23).

Images