A kind of stroke switch with ejector pin wear test equipment

Abstract

The utility model relates to wear resistance detection technical field, and disclose a kind of stroke switch is used to wear testing equipment of ejector rod.The utility model includes installation box, further include: the top fixed connection of installation box is limited to post, the surface of limited post is slidably installed with stroke switch, the inside of stroke switch is slidably connected with ejector rod, the inside of installation box is slidably installed with polishing block, and swing mechanism is provided in the inside of installation box;The utility model is rotated by the motor driving gear three and gear four being set, to further drive gear one and gear two synchronous rotation, then by extension rod drive transmission rod moves, in turn sliding block three drive sliding block one and gear one or gear two surface contact with each other, drive eccentric wheel one rotation, by eccentric wheel one and connecting rod cooperation drive connecting rod moves, to further realize the polishing of ejector rod, the polishing frequency can be adjusted simultaneously, to facilitate the detection of wear under different polishing speed, increase the application range of equipment.

Description

Technical Field

[0001] This utility model relates to the field of wear resistance testing technology, specifically to a wear resistance testing device for a limit switch push rod. Background Technology

[0002] Limit switches, a type of position switch, are commonly used low-current control electrical devices. They utilize the impact of moving parts in production machinery to actuate their contacts, thereby connecting or disconnecting control circuits to achieve specific control objectives. Typically, these switches are used to limit the position or travel of mechanical movement, causing the machinery to automatically stop, reverse, change speed, or automatically reciprocate at a certain position or travel distance.

[0003] The service life of a limit switch is closely related to the wear resistance of the push rod. Testing the wear resistance of the push rod requires a limit switch push rod wear resistance testing device. Although existing limit switch push rod wear resistance testing devices can test the push rod, they use a rotation method for testing. Limit switches are usually operated by pushing the push rod, so the measurement data is bound to be biased. At the same time, it is not convenient to test the wear of the push rod at different frequencies, thus affecting the applicability of the device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a wear resistance testing device for a limit switch push rod, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution:

[0006] This utility model relates to a wear resistance testing device for a limit switch push rod, including a mounting box, and further comprising: a limit post fixedly connected to the top of the mounting box, a limit switch slidably mounted on the surface of the limit post, a push rod slidably connected inside the limit switch, a hexagonal nut threadedly connected to the top of the limit post, a grinding block slidably mounted inside the mounting box, a swing mechanism provided inside the mounting box, a motor fixedly mounted on one side of the mounting box, and a telescopic rod fixedly mounted inside the mounting box.

[0007] Furthermore, the swing mechanism includes a connecting rod, a sliding groove, an eccentric wheel one, and an eccentric wheel two. The connecting rod is rotatably installed inside the grinding block. Two sets of sliding grooves are symmetrically opened on both sides of the connecting rod. The eccentric wheel one is slidably installed inside the sliding groove, and the eccentric wheel two is slidably installed inside the sliding groove on the other side of the connecting rod.

[0008] Furthermore, a transmission rod is slidably engaged inside the eccentric wheel one, and a locking mechanism is provided inside the transmission rod. Gear one is rotatably installed inside the transmission rod, and gear one is rotatably connected to the mounting box. Gear two is rotatably installed inside the other side of the transmission rod, and gear two is rotatably connected to the mounting box.

[0009] Furthermore, the output end of the motor is fixedly connected to a fourth gear, which meshes with a second gear. A third gear is fixedly installed at the front end of the fourth gear, which meshes with a first gear.

[0010] Furthermore, the locking mechanism includes a sliding block 1, a sliding block 2, a sliding block 3, a guide post, and a spring. Multiple sets of sliding blocks 1 are symmetrically slidably connected inside the transmission rod. Sliding block 2 is slidably engaged inside the sliding block 1. Sliding block 3 is fixedly connected to the bottom of sliding block 2. The guide post is fixedly connected to the bottom of sliding block 3 and slidably connected inside the transmission rod. The spring is disposed on the surface of the guide post.

[0011] Furthermore, a sleeve is fixedly connected to the output end of the telescopic rod, and the sleeve is rotatably connected to the transmission rod.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention uses a motor to drive gears three and four to rotate, which in turn drives gears one and two to rotate synchronously. Then, a telescopic rod drives a transmission rod to move, which in turn pushes sliding block three to make sliding block one contact the surface of gear one or gear two, thereby driving eccentric wheel one to rotate. Through the cooperation of eccentric wheel one and connecting rod, the connecting rod is moved, thus achieving the grinding of the top rod. At the same time, the grinding frequency can be adjusted to facilitate the detection of wear at different grinding speeds, increasing the applicability of the equipment. Attached Figure Description

[0014] Figure 1 This is a top view of the present invention;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is a schematic diagram of the swing mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the transmission rod of this utility model;

[0018] Figure 5 This is a cross-sectional view of the transmission rod of this utility model;

[0019] Figure 6 This utility model Figure Five Enlarged schematic diagram of part A in the middle.

[0020] The components represented by each number in the attached diagram are listed below: 1. Mounting box; 2. Limit pin; 3. Limit switch; 4. Push rod; 5. Hex nut; 6. Grinding block; 7. Connecting rod; 8. Slide groove; 9. Eccentric wheel one; 10. Eccentric wheel two; 11. Transmission rod; 12. Gear one; 13. Gear two; 14. Gear three; 15. Gear four; 16. Motor; 17. Sliding block one; 18. Sliding block two; 19. Sliding block three; 20. Guide post; 21. Spring; 22. Sleeve; 23. Telescopic rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-6 This utility model is a wear resistance testing device for a limit switch push rod, including a mounting box 1, and further including: a limit post 2 fixedly connected to the top of the mounting box 1, a limit switch 3 slidably mounted on the surface of the limit post 2, a push rod 4 slidably connected inside the limit switch 3, a hexagonal nut 5 threadedly connected to the top of the limit post 2, a grinding block 6 slidably mounted inside the mounting box 1, a swing mechanism provided inside the mounting box 1, a motor 16 fixedly mounted on one side of the mounting box 1, and a telescopic rod 23 fixedly mounted inside the mounting box 1.

[0023] The swing mechanism includes a connecting rod 7, a sliding groove 8, an eccentric wheel 9, and an eccentric wheel 10. The connecting rod 7 is rotatably mounted inside the grinding block 6. Two sets of sliding grooves 8 are symmetrically arranged on both sides of the connecting rod 7. The eccentric wheel 9 is slidably mounted inside the sliding groove 8, and the eccentric wheel 10 is slidably mounted inside the sliding groove 8 on the other side of the connecting rod 7. A transmission rod 11 is slidably engaged inside the eccentric wheel 9. A locking mechanism is provided inside the transmission rod 11. A gear 12 is rotatably mounted inside the transmission rod 11 and is rotatably connected to the mounting box 1. A gear 13 is rotatably mounted inside the other side of the transmission rod 11 and is rotatably connected to the mounting box 1. The motor 16 outputs... A gear 4 15 is fixedly connected to the output end, and gear 4 15 meshes with gear 2 13. A gear 3 14 is fixedly installed at the front end of gear 4 15, and gear 3 14 meshes with gear 1 12. The locking mechanism includes sliding block 1 17, sliding block 2 18, sliding block 3 19, guide post 20, and spring 21. Multiple sets of sliding blocks 17 are symmetrically slidably connected inside the transmission rod 11. Sliding block 2 18 is slidably engaged inside sliding block 17. Sliding block 3 19 is fixedly connected to the bottom of sliding block 2 18. Guide post 20 is fixedly connected to the bottom of sliding block 3 19 and slidably connected inside the transmission rod 11. Spring 21 is set on the surface of guide post 20. The output end of the telescopic rod 23 is fixedly connected to a sleeve 22, which is rotatably connected to the transmission rod 11. A motor 16 drives gear 4 15 to rotate, and gear 4 15 is fixedly connected to gear 3 14. Gear 3 14 and gear 4 15 mesh with gear 1 12 and gear 2 13 respectively. Gear 1 12 and gear 2 13 are rotatably mounted inside the mounting box 1, thereby driving gear 1 12 and gear 2 13 to rotate synchronously. The transmission rod 11 is rotatably connected inside the mounting box 1, and the mounting box 1 passes through gear 1 12 and gear 2 13, which are slidably engaged with eccentric wheel 9. This causes the telescopic rod 23 to push the sleeve 22 to move, and the sleeve 22 and transmission rod 11... The moving rod 11 is rotatably connected, which in turn drives the transmission rod 11 to move. When the transmission rod 11 moves, it drives the sliding block 3 19 to move. The sliding block 3 19 is fixedly connected to the sliding block 2 18, and the sliding block 2 18 is slidably connected to the sliding block 17. This pushes the sliding block 17 to contact the surface of the gear 12 or the gear 2 13, thereby driving the transmission rod 11 to rotate. The rotation of the transmission rod 11 drives the eccentric wheel 1 9 to rotate. The eccentric wheel 1 9 is connected to the sliding groove 8 provided inside the connecting rod 7. The eccentric wheel 2 10 is slidably connected to the sliding groove 8 inside the other side of the connecting rod 7. The connecting rod 7 is rotatably connected to the grinding block 6, thereby driving the grinding block 6 to oscillate at different frequencies.

[0024] In use, the motor 16 drives gear 4 15 to rotate. When gear 4 15 rotates, it drives gear 3 14 to rotate, which in turn drives gear 1 12 and gear 2 13 to rotate synchronously. Subsequently, the telescopic rod 23 drives the sleeve 22 to move. When the sleeve 22 moves, it drives the transmission rod 11 to move, cooperating with gear 1 12 or gear 2 13 to press the sliding block 3 19, causing the sliding block 2 18 and the guide post 20 to move along the transmission rod 11. When the sliding block 2 18 moves, it causes the sliding block 1 17 to slide and engage with gear 1 12 or gear 2 13. The contact causes the transmission rod 11 to rotate, which in turn drives the eccentric wheel 9 to rotate. The eccentric wheel 9 engages with the sliding groove 8 inside the connecting rod 7, causing the eccentric wheel 10 to rotate. This, in turn, causes the connecting rod 7 to move, which in turn causes the grinding block 6 to swing. When the frequency is changed, the spring 21 pushes the sliding block 19 to reset, allowing the grinding block 6 to grind the top rod 4 at different frequencies. This also simulates the usage scenario of the limit switch 3, making the obtained data more accurate and increasing the applicability of the equipment.

[0025] Working principle: First, place the equipment in a suitable position, then place the limit switch 3 on the surface of the limit post 2 and fix it with the hexagonal nut 5. Then, push the sleeve 22 to the suitable position through the telescopic rod 23. The sleeve 22 drives the transmission rod 11 to move. By pushing the sliding block 3 19 inside the transmission rod 11 to move, the sliding block 2 18 drives the sliding block 17 to contact the surface of gear 1 12 or gear 2 13. Then, turn on the motor 16 to drive gear 3 14 and gear 4 15 to rotate synchronously. Then, the transmission rod 11 rotates through the rotation of gear 11 and gear 12, which drives the eccentric wheel 9 to rotate. The connecting rod 7 cooperates with the eccentric wheel 9 to drive the grinding block 6 to swing, thereby grinding the top rod 4.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wear resistance testing device for a limit switch push rod, comprising: The mounting box (1) is characterized in that it further includes: a limit post (2) is fixedly connected to the top of the mounting box (1), a limit switch (3) is slidably installed on the surface of the limit post (2), a top rod (4) is slidably connected inside the limit switch (3), a hexagonal nut (5) is threadedly connected to the top of the limit post (2), a grinding block (6) is slidably installed inside the mounting box (1), a swing mechanism is provided inside the mounting box (1), a motor (16) is fixedly installed on one side of the mounting box (1), and a telescopic rod (23) is fixedly installed inside the mounting box (1).

2. The wear resistance testing device for a limit switch push rod according to claim 1, characterized in that, The swing mechanism includes a connecting rod (7), a sliding groove (8), an eccentric wheel one (9) and an eccentric wheel two (10). The connecting rod (7) is rotatably installed inside the grinding block (6). Two sets of sliding grooves (8) are symmetrically opened on both sides of the connecting rod (7). The eccentric wheel one (9) is slidably installed inside the sliding groove (8), and the eccentric wheel two (10) is slidably installed inside the sliding groove (8) on the other side of the connecting rod (7).

3. The wear resistance testing device for a limit switch push rod according to claim 2, characterized in that, The eccentric wheel (9) is internally slidably connected to a transmission rod (11). The transmission rod (11) is internally equipped with a locking mechanism. Gear (12) is rotatably installed inside the transmission rod (11) and is rotatably connected to the mounting box (1). Gear (2) is rotatably installed inside the other side of the transmission rod (11) and is rotatably connected to the mounting box (1).

4. The wear resistance testing device for a limit switch push rod according to claim 3, characterized in that, The output end of the motor (16) is fixedly connected to a gear four (15), and the gear four (15) meshes with the gear two (13). The front end of the gear four (15) is fixedly installed with a gear three (14), and the gear three (14) meshes with the gear one (12).

5. The wear resistance testing device for a limit switch push rod according to claim 4, characterized in that, The locking mechanism includes a sliding block 1 (17), a sliding block 2 (18), a sliding block 3 (19), a guide post (20), and a spring (21). Multiple sets of sliding blocks 1 (17) are symmetrically slidably connected inside the transmission rod (11). Sliding block 2 (18) is slidably engaged inside the sliding block 1 (17). Sliding block 3 (19) is fixedly connected to the bottom of sliding block 2 (18). The guide post (20) is fixedly connected to the bottom of sliding block 3 (19) and slidably connected inside the transmission rod (11). The spring (21) is set on the surface of the guide post (20).

6. The wear resistance testing device for a limit switch push rod according to claim 5, characterized in that, The output end of the telescopic rod (23) is fixedly connected to a sleeve (22), and the sleeve (22) is rotatably connected to the transmission rod (11).

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