Operation device for emergency stop switch life test

By designing the combination of pneumatic mechanical claw set and SMC telescopic swing cylinder, the combination of front and back motion and rotary motion in the emergency stop switch life test is solved, and reliable clamping and convenient driving of the emergency stop switch is achieved.

CN223078436UActive Publication Date: 2025-07-08ZHEJIANG MECHANICAL & ELECTRICAL PROD QUALITY INSPECTION INST CO LTD
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Patent Information

Application Number
CN202421753999.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-07-08
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

The prior art lacks operating devices suitable for emergency stop switch life tests, and in particular, they cannot meet the combined needs of forward and backward movement and rotational movement.

Method used

An operating device including a test bench, an emergency stop switch installation area, a pneumatic mechanical claw set, a cylinder fixing member, a flange coupling and a pneumatic drive assembly is designed. The clamping and rotating movement of the emergency stop switch is achieved through the pneumatic mechanical claw set, and the composite movement is achieved by using the SMC telescopic swing cylinder.

Benefits of technology

It realizes reliable clamping and flexible driving of emergency stop switches of different specifications, meeting its life test operation needs, with a simple and reliable structure and convenient operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model adopts an operating device for testing the service life of an emergency stop switch, which comprises a test bed, an emergency stop switch mounting area, a pneumatic mechanical gripper group, a cylinder fixing piece, a flange coupling and a pneumatic driving assembly, and can support the standard hole site mounting of the emergency stop switch through the emergency stop switch mounting area, and can support the standard hole site mounting of the emergency stop switch through the pneumatic mechanical gripper group. The pneumatic mechanical gripper assembly can support clamping of knobs of emergency stop switches of different specifications, meanwhile, the pneumatic gripper structure can achieve reliable clamping of the emergency stop switches through opening and closing of grippers, reliable connection of the pneumatic driving assembly and the pneumatic mechanical gripper assembly is achieved through the air cylinder fixing piece and the flange coupler, and the pneumatic mechanical gripper assembly is connected with the pneumatic mechanical gripper assembly through the pneumatic driving assembly. The operating device of the structural design is simple and reliable in structure, convenient and fast driving can be carried out in the service life testing operation process of the operating device, and the service life testing operation needed by existing emergency stop switches of various specifications in the market can be met.
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Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical product life test, in particular to an operating device for the life test of an emergency stop switch. Background Technique

[0002] The emergency stop switch is an important device to ensure the safe operation of industrial and mechanical equipment. By quickly and effectively stopping the operation of the equipment, it can maximize the protection of personnel safety, equipment integrity and environmental safety. To ensure the safety and stability of the emergency stop switch, before consumers use it, production manufacturers usually conduct a series of standard tests; for example: the life test is often an essential type.

[0003] The existing emergency stop switches on the market have different operating sequences from ordinary push-button switches. Ordinary switches belong to momentary-action switches and only need to move back and forth. However, the operation of the emergency stop switch generally involves a combination of forward and backward movements and rotational movements. However, there are very few devices on the market that meet this situation. Therefore, it is very necessary to develop a device that can be used to perform the life test operation of the emergency stop switch to solve the above problems. Summary of the Invention

[0004] In view of the above deficiencies, the utility model provides an operating device with a simple and reliable structure, convenient driving, and capable of meeting the life test operation of the emergency stop switch.

[0005] In order to achieve the above purposes, the utility model adopts an operating device for the life test of an emergency stop switch, which includes a test bench, an emergency stop switch installation area, a pneumatic manipulator claw group, a cylinder fixing member, a flange coupling, and a pneumatic drive assembly;

[0006] The cylinder fixing member is limited on the test bench;

[0007] The emergency stop switch installation area is limited on the test bench, far away from the cylinder fixing member, and a test product installation area for installing and limiting the external test product is formed on the emergency stop switch installation area;

[0008] The pneumatic manipulator claw group is distributed between the cylinder fixing member and the emergency stop switch installation area. The pneumatic manipulator claw group includes a claw part for clamping the switch joint of each specification of the test product and a claw drive assembly for performing the clamping or loosening action of the claw part. The claw part is distributed on one side of the emergency stop switch installation area, and the claw drive assembly is distributed on one side of the emergency stop switch installation area;

[0009] The pneumatic drive assembly is distributed on one side of the cylinder fixing member away from the pneumatic manipulator claw group, and is limited by the cylinder fixing member. Through the flange coupling, the rotational force and reciprocating force of the pneumatic drive assembly are output to the pneumatic manipulator claw group, and the pneumatic manipulator claw group performs the test operations of the rotational life and start-stop pressing life of the external product under test.

[0010] The present utility model is further configured such that the pneumatic manipulator claw group further includes a claw base. One end of the claw base is connected to the flange coupling, and the other end is connected to the other side of the claw portion for clamping the switch joint of the product under test. The claw drive assembly is limited on the claw base, and the pneumatic drive assembly and the pneumatic manipulator claw group are in concentric motion.

[0011] The present utility model is further configured such that the claw portion includes an anti-slip silica gel pad, fingers, a claw link, a claw four-link, a link fixing block, and a claw fixing block. The claw base includes a claw mounting plate, a claw support rod, and a claw flange. The claw drive assembly includes a drive main body for performing the opening and closing movement of the claw portion and a claw guide shaft. The claw guide shaft performs telescopic actions within the drive main body. The pneumatic manipulator claw group further includes a guide tube for guiding the driving force output of the claw drive assembly. A card slot is provided on the outer edge of the claw mounting plate, and a clamping fit groove adapted to the card slot is provided on the claw fixing block;

[0012] The drive main body and the claw support rod are respectively connected to one end of the claw flange. The other end of the claw flange is connected to the flange coupling. Between the claw mounting plate and the claw fixing block, a clamping connection is formed through the card slot and the clamping fit groove. The claw mounting plate and the guide tube are connected through a fixing member. The claw guide shaft passes through the guide tube and is connected to the link fixing block. The other end of the claw fixing block relative to the clamping fit groove is connected to the claw four-link. The claw four-link is connected to the fingers. The anti-slip silica gel pad is limited at the front end of the fingers. One end of the claw link is connected to the claw four-link, and the other end is connected to the link fixing block, and the claw portion is respectively limited on the link fixing block and the claw mounting plate, and the claw guide shaft is connected to the link fixing block to drive the claw portion to perform clamping or loosening actions.

[0013] The present utility model is further configured such that the claw four-link is a two-row parallel connection structure of links.

[0014] The present utility model is further configured such that the pneumatic drive assembly includes a pneumatic rotation assembly and a telescopic assembly. Through the pneumatic rotation assembly, the respective rotational movements of 0-90 degrees are performed. Through the telescopic assembly, the pneumatic manipulator claw group performs telescopic movements.

[0015] The present utility model is further configured such that the pneumatic drive assembly is an SMC telescopic swing cylinder, and the driving body is a cylinder. By adopting the SMC telescopic swing cylinder for the pneumatic drive assembly, since the SMC telescopic swing cylinder can support telescopic movement and also perform rotary reciprocating movement, it can meet the movement requirements of the emergency stop switch.

[0016] The present utility model is further configured such that the test product installation area is a through hole for installing the threaded part on the external test product; the diameter of the through hole is φ22mm.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The operating device for the emergency stop switch life test involves a test bench, an emergency stop switch installation area, a pneumatic manipulator claw group, a cylinder fixing part, a flange coupling, and a pneumatic drive assembly. Among them, the emergency stop switch installation area can support the installation of the standard hole position of the emergency stop switch. Through the pneumatic manipulator claw group, it can support the clamping of the knobs of emergency stop switches of different specifications. At the same time, the structure of the pneumatic claw can realize the reliable clamping of the emergency stop switch through the opening and closing of the claw. And through the cylinder fixing part and the flange coupling, the reliable connection of the pneumatic drive assembly and the pneumatic manipulator claw assembly is realized. And through the pneumatic drive assembly, the flexible elongation and shortening, as well as the rotary motion, of the pneumatic manipulator claw group can be realized. In addition, the structure design of the operating device is simple and reliable, and during the life test operation of the operating device, it can be conveniently driven, and at the same time, it can meet the life test operations required for various specifications of emergency stop switches on the market.

[0018] The control process of the operating device for the emergency stop switch life test involved in the present utility model is as follows:

[0019] 1) Connect all cylinders to the air source;

[0020] 2) Check whether each cylinder is working properly;

[0021] 3) Set the initial position of the cylinder. The claw cylinder and the pneumatic drive assembly are both in the tightened state;

[0022] 4) The pneumatic drive assembly extends to push the claw to the closed state of the emergency stop switch;

[0023] 5) The claw cylinder extends first and then tightens to clamp the emergency stop switch;

[0024] 6) The pneumatic drive assembly rotates to the open state of the emergency stop switch;

[0025] 7) The claw cylinder extends and the claw opens;

[0026] 8) The pneumatic drive assembly first performs a contraction movement and then performs a reverse rotation operation to the zero position of the drive assembly;

[0027] 9) The gripper cylinder retracts to its initial state, and the test ends. Description of the Drawings

[0028] Figure 1 is the first - perspective three - dimensional schematic diagram of the operating device of the specific embodiment of the present utility model;

[0029] Figure 2 is the second - perspective three - dimensional schematic diagram of the operating device of the specific embodiment of the present utility model;

[0030] Figure 3 is the three - dimensional schematic diagram of the pneumatic gripper set of the specific embodiment of the present utility model;

[0031] Figure 4 is Figure 3 magnification schematic diagram;

[0032] Figure 5 is the working - step flow chart of the operating device of the specific embodiment of the present utility model. Detailed Embodiment

[0033] As Figures 1-5 shown, the specific embodiment of the present utility model is an operating device for the life test of an emergency stop switch, including a test bench 1, an emergency stop switch installation area 2, a pneumatic gripper set 3, a cylinder fixing member 4, a flange coupling 5, and a pneumatic drive assembly 6;

[0034] The cylinder fixing member 4 is limited on the test bench 1;

[0035] The emergency stop switch installation area 2 is limited on the test bench 1, away from the cylinder fixing member 4, and a test - product installation area for the installation and limitation of the external test product is formed on the emergency stop switch installation area 2;

[0036] The pneumatic gripper set 3 is distributed between the cylinder fixing member 4 and the emergency stop switch installation area 2. The pneumatic gripper set 3 includes a claw part for clamping the switch connector of each specification of the test product and a claw drive assembly 39 for performing the clamping or loosening action of the claw part. The claw part is distributed on one side of the emergency stop switch installation area 2, and the claw drive assembly 39 is distributed on one side of the emergency stop switch installation area 2;

[0037] The pneumatic drive assembly 6 is distributed on the side of the cylinder fixing member 4 away from the pneumatic gripper set 3, limited by the cylinder fixing member 4, and the rotational force and reciprocating force of the pneumatic drive assembly 6 are output to the pneumatic gripper set 3 through the flange coupling 5, and constitute the pneumatic gripper set 3 to perform the test operations on the rotational life and start - stop pressing life of the external test product.

[0038] As Figures 1-4As shown, the pneumatic manipulator claw group 3 further includes a claw base 37. One end of the claw base 37 is connected to the flange coupling 5, and the other end is connected to the other side of the claw part for clamping the switch joint of the product under test. The claw drive assembly 39 is limited on the claw base 37, and the pneumatic drive assembly 6 and the pneumatic manipulator claw group 3 perform concentric motion.

[0039] As Figures 1-4 shown, the claw part includes an anti-slip silicone pad 31, fingers 32, a claw link 33, a claw four-bar link 34, a link fixing block 35, and a claw fixing block 36. The claw base 37 includes a claw mounting plate 373, a claw support rod 372, and a claw flange 371. The claw drive assembly 39 includes a drive body 391 for performing the opening and closing motion of the claw part and a claw guide shaft 392. The claw guide shaft 392 performs telescopic action within the drive body 391. The pneumatic manipulator claw group 3 further includes a guide tube for guiding the output of the driving force of the claw drive assembly 39. A clamping groove 361 is formed on the outer edge of the claw mounting plate 373, and a clamping fit groove 3731 adapted to the clamping groove 361 is formed on the claw fixing block 36;

[0040] The drive body 391 and the claw support rod 372 are respectively connected to one end of the claw flange 371. The other end of the claw flange 371 is connected to the flange coupling 5. Between the claw mounting plate 373 and the claw fixing block 36, a clamping connection is formed through the clamping groove 361 and the clamping fit groove 3731. The claw mounting plate 373 and the guide tube are connected through a fixing member. The claw guide shaft 392 passes through the guide tube and is connected to the link fixing block 35. The other end of the claw fixing block 36 relative to the end where the clamping fit groove 3731 is formed is connected to the claw four-bar link 34. The claw four-bar link 34 is connected to the fingers 32. The anti-slip silicone pad 31 is limited at the front end of the fingers 32. One end of the claw link 33 is connected to the claw four-bar link 34, and the other end is connected to the link fixing block 35, and the claw part is respectively limited on the link fixing block 35 and the claw mounting plate 373, and the claw guide shaft 392 is connected to the link fixing block 35 to drive the claw part to perform clamping or loosening actions.

[0041] As Figures 3-4 shown, the claw four-bar link 34 is a structure with two rows of links connected in parallel.

[0042] As Figures 1-3 shown, the pneumatic drive assembly 6 includes a pneumatic rotation assembly and a telescopic assembly. Through the pneumatic rotation assembly, a rotational motion of 0 - 90 degrees is respectively performed. Through the telescopic assembly, the pneumatic manipulator claw group 3 performs telescopic motion.

[0043] As Figures 1-3As shown, the pneumatic drive assembly 6 is an SMC telescopic swing cylinder, and the drive body 391 is a cylinder. By using an SMC telescopic swing cylinder for the pneumatic drive assembly 6, since the SMC telescopic swing cylinder can support telescopic movement and also perform reciprocating rotational movement, it can thus meet the movement requirements of the emergency stop switch.

[0044] As Figures 1-2 shown, the test product installation area is a through-hole for installing the threaded part of the external test product; the diameter of the through-hole is φ22mm.

[0045] The operating device for the emergency stop switch life test described above involves the test bench 1, the emergency stop switch installation area 2, the pneumatic manipulator claw group 3, the cylinder fixing part 4, the flange coupling 5, and the pneumatic drive assembly 6. Among them, through the emergency stop switch installation area 2, the standard hole position installation of the emergency stop switch can be supported. Through the pneumatic manipulator claw group 3, the clamping of the knobs of different specifications of emergency stop switches can be supported. At the same time, the structure of the pneumatic claw can realize the reliable clamping of the emergency stop switch through the opening and closing of the claw. And through the cylinder fixing part 4 and the flange coupling 5, the reliable connection of the pneumatic drive assembly 6 and the pneumatic manipulator claw group 3 is realized. And through the pneumatic drive assembly 6, the flexible extension and shortening, as well as rotational movement, of the pneumatic manipulator claw group 3 can be realized. In addition, the structure design of the operating device is simple and reliable. During the life test operation of the operating device, convenient driving can be carried out. At the same time, it can meet the life test operations required for various specifications of existing emergency stop switches on the market.

[0046] As Figure 5 shown, in the specific embodiment of the present invention, for the operating device for the emergency stop switch life test, its control process is as follows:

[0047] 1) Connect all cylinders to the air source;

[0048] 2) Check whether each cylinder is working properly;

[0049] 3) Set the initial position of the cylinders. The gripper cylinder and the pneumatic drive assembly 6 are both in the tightened state;

[0050] 4) The pneumatic drive assembly 6 extends to push the gripper to the closed state of the emergency stop switch;

[0051] 5) The gripper cylinder extends first and then tightens to clamp the emergency stop switch;

[0052] 6) The pneumatic drive assembly 6 rotates to the open state of the emergency stop switch;

[0053] 7) The gripper cylinder extends and the gripper opens;

[0054] 8) The pneumatic drive assembly 6 first performs a contraction movement and then performs a reverse rotation operation to the zero position of the drive assembly;

[0055] 9) The gripper cylinder contracts to its initial state, and the test ends.

Claims

1. An operating device for the life test of an emergency stop switch, characterized in that: The operating device includes a test bench, an emergency stop switch installation area, a pneumatic manipulator jaw group, a cylinder fixing member, a flange coupling, and a pneumatic drive assembly; The cylinder fixing member is limited on the test bench; The emergency stop switch installation area is limited on the test bench, away from the cylinder fixing member, and a test product installation area for installing and limiting the external test product is formed on the emergency stop switch installation area; The pneumatic manipulator jaw group is distributed between the cylinder fixing member and the emergency stop switch installation area. The pneumatic manipulator jaw group includes a jaw part for clamping the switch joint of each specification of the test product and a jaw drive assembly for performing the clamping or loosening action of the jaw part. The jaw part is distributed on one side of the emergency stop switch installation area, and the jaw drive assembly is distributed on one side of the emergency stop switch installation area; The pneumatic drive assembly is distributed on the side of the cylinder fixing member away from the pneumatic manipulator jaw group, and is limited on the cylinder fixing member. The rotational force and reciprocating force of the pneumatic drive assembly are output to the pneumatic manipulator jaw group through the flange coupling, and constitute the pneumatic manipulator jaw group to perform the test operations on the rotational life and start-stop pressing life of the external test product.

2. The operating device for the life test of the emergency stop switch according to claim 1, wherein: The pneumatic manipulator jaw group further includes a jaw base. One end of the jaw base is connected to the flange coupling, and the other end is connected to the other side of the jaw part for clamping the switch joint of the test product. The jaw drive assembly is limited on the jaw base, and the pneumatic drive assembly and the pneumatic manipulator jaw group perform concentric motion.

3. The operating device for the emergency stop switch life test according to claim 2, characterized in that: The jaw part includes an anti-slip silicone pad, fingers, a jaw link, a jaw four-bar link, a link fixing block, and a jaw fixing block. The jaw base includes a jaw mounting plate, a jaw support rod, and a jaw flange. The jaw drive assembly includes a drive body for performing the opening and closing motion of the jaw part and a jaw guide shaft. The jaw guide shaft performs telescopic motion in the drive body. The pneumatic manipulator jaw group further includes a guide tube for guiding the driving force output of the jaw drive assembly. A card slot is formed on the outer edge of the jaw mounting plate, and a clamping fit groove adapted to the card slot is formed on the jaw fixing block; The drive body and the jaw support rod are respectively connected to one end of the jaw flange. The other end of the jaw flange is connected to the flange coupling. Between the jaw mounting plate and the jaw fixing block, a clamping connection is formed through the card slot and the clamping fit groove. The jaw mounting plate and the guide tube are connected through a fixing member. The jaw guide shaft passes through the guide tube and is connected to the link fixing block. The other end of the jaw fixing block opposite to the clamping fit groove is connected to the jaw four-bar link. The jaw four-bar link is connected to the fingers. The anti-slip silicone pad is limited at the front end of the fingers. One end of the jaw link is connected to the jaw four-bar link, and the other end is connected to the link fixing block, forming the jaw part to be respectively limited on the link fixing block and the jaw mounting plate, and constituting the jaw guide shaft connected to the link fixing block to drive the jaw part to perform the clamping or loosening action.

4. The operating device for the life test of the emergency stop switch according to claim 3, characterized in that: The jaw four-bar link is a structure with two rows of links connected in parallel.

5. The operating device for the emergency stop switch life test according to claim 1, 2, 3 or 4, characterized in that: The pneumatic drive assembly includes a pneumatic rotary assembly and a telescopic assembly. Through the pneumatic rotary assembly, a rotational movement of 0 - 90 degrees is formed respectively. Through the telescopic assembly, a telescopic movement is formed by the pneumatic manipulator claws group.

6. The operating device for the life test of the emergency stop switch according to claim 1, 2, 3 or 4, characterized in that: The pneumatic drive assembly is an SMC telescopic swing cylinder, and the driving body is a cylinder.

7. The operating device for the life test of the emergency stop switch according to claim 1, 2, 3 or 4, characterized in that: The test product installation area is a through hole for installing the threaded part on the external test product.

8. The operating device for the emergency stop switch life test according to claim 7, characterized in that: The aperture of the through hole is φ22mm.