A simulation test device for a travel switch

Abstract

The present invention relates to the technical field of travel switch testing, and more specifically discloses a simulation testing device for a travel switch, including a U-shaped positioning frame. A clamping component is fixedly connected to the back of the U-shaped positioning frame. A rotating positioning rod is installed on one side of the top of the U-shaped positioning frame. A first gear component is installed on the top of the rotating positioning rod. A second servo motor is installed on the other side of the top of the U-shaped positioning frame; in the present invention, by rotating the second positioning threaded pin to separate the second positioning threaded pin from the second limiting cylinder, the friction force between the second positioning threaded pin, the first servo motor and the first gear component is reduced, so that the second impact component can slide on the guide rod, thereby adjusting the position of the second impact component. And the same operation can adjust the position of the first impact component, enabling the device to detect travel switches of different sizes and making the detection range of the device larger.

Description

Technical Field

[0001] The present invention relates to the technical field of travel switch testing, and more particularly to a simulation testing device for travel switches. Background Art

[0002] A travel switch, also known as a limit switch, is a commonly used small-current master switch. It uses the collision of the moving parts of the production machinery to make its contacts act to achieve the on or off control of the circuit, so as to achieve a certain control purpose. Usually, such switches are used to limit the position or stroke of mechanical movement, so that the moving machinery automatically stops, moves in the reverse direction, changes speed, or moves back and forth automatically at a certain position or stroke. After the travel switch is produced, it is necessary to test the performance of the travel switch to detect the service life and resilience of the travel switch.

[0003] During the use of the existing travel switch testing equipment, there are some deficiencies as follows:

[0004] When the existing simulation testing device for travel switches is in use, after positioning the travel switch, an impact object that swings back and forth impacts the rotating arm of the travel switch, and at the same time, it is detected whether the travel switch can be used normally. Until the travel switch cannot work normally, at this time, the number of swings of the impact arm can be viewed by counting, so as to infer the service life of the travel switch. However, the detection rate of the reciprocating impact object on the travel switch is low, which is not convenient for quickly completing the detection of the travel switch. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a simulation testing device for travel switches to solve the problems existing in the above background art.

[0006] The present invention provides the following technical solution: A simulation testing device for travel switches, including a U-shaped positioning frame, a clamping assembly is fixedly connected to the back of the U-shaped positioning frame, a rotating positioning rod is installed on one side of the top of the U-shaped positioning frame, a first gear assembly is installed on the top of the rotating positioning rod, a second servo motor is installed on the other side of the top of the U-shaped positioning frame, a second gear assembly is fixedly connected to the output shaft of the second servo motor, a first impact assembly is installed on the top of the second gear assembly, and a second impact assembly is installed on the top of the first gear assembly.

[0007] Further, the clamping assembly includes a positioning frame, a first hydraulic rod is installed on the front of the top of the positioning frame, a first hydraulic telescopic rod is fixedly connected to the bottom of the first hydraulic rod, a clamping lifting groove is opened at the bottom of the front inside the positioning frame, and a U-shaped clamping block is fixedly connected to the bottom of the first hydraulic telescopic rod.

[0008] Further, the first gear assembly includes a gear body. A positioning hole is formed at the top of the gear body. A sliding positioning groove is formed on the outer side of the top of the gear body. A guide rod is fixedly connected to the inner side of the sliding positioning groove.

[0009] Further, the first impact assembly includes an impact cylinder. A first limiting cylinder is installed at the bottom of the impact cylinder. A guide hole is formed on the outer side of the first limiting cylinder. A first positioning threaded pin is installed at the bottom of the guide hole.

[0010] Further, the second impact assembly includes a first servo motor. A second limiting cylinder is fixedly connected to the bottom of the first servo motor. A second positioning threaded pin is installed at the bottom of the second limiting cylinder. A hexagonal positioning block is fixedly connected to the top of the first servo motor. A second hydraulic cylinder is fixedly connected to the top of the hexagonal positioning block. A rotary pushing assembly is installed on the outer side of the hexagonal positioning block. A lifting sliding groove is formed on the outer side of the top of the hexagonal positioning block. A second hydraulic telescopic rod is fixedly connected to the bottom of the second hydraulic cylinder. A hexagonal lifting block is fixedly connected to the bottom of the second hydraulic telescopic rod. A connecting block is fixedly connected to the outer side of the hexagonal lifting block. A hexagonal lifting ring is fixedly connected to the side of the connecting block away from the hexagonal lifting block. A positioning block is fixedly connected to the outer side of the top of the hexagonal positioning block. Positioning rods are fixedly connected to both sides of the positioning block.

[0011] Further, the rotary pushing assembly includes a rotary plate. A positioning bearing is installed on the side of the rotary plate close to the hexagonal positioning block. Oblique angles are formed on the front and back of the rotary plate. A first U-shaped rotary positioning block is fixedly connected to the top of the rotary plate. A transmission rod is installed inside the first U-shaped rotary positioning block. A second U-shaped rotary positioning block is installed on the side of the transmission rod away from the first U-shaped rotary positioning block.

[0012] Further, the first gear assembly and the second gear assembly have the same structure. The diameter of the positioning hole is the same as the diameter of the output shaft of the second servo motor and the diameter of the bearing on the outer side of the rotary positioning rod. The cross-sectional dimension of the clamping lifting groove and the dimension of the top of the U-shaped clamping block have a tolerance fit. The front surfaces of the U-shaped clamping block and the positioning frame are in the same plane. The width of the sliding positioning groove and the diameter of the first limiting cylinder have a clearance fit. The diameter of the guide hole and the diameter of the guide rod have a clearance fit.

[0013] Furthermore, the dimensions of the first limiting cylinder are the same as those of the second limiting cylinder. An elevating groove is formed inside the upper half of the hexagonal positioning block. A clearance fit is provided between the inner dimension of the elevating groove of the hexagonal positioning block and the top dimension of the hexagonal elevating block. The number of openings of the elevating groove of the hexagonal positioning block corresponds to the connecting blocks. A clearance fit is provided between the sectional dimension of the opening of the elevating groove of the hexagonal positioning block and the dimension of the top of the connecting block. The inner diameter of the positioning bearing and the diameter of the positioning rod are in mutual cooperation.

[0014] The technical effects and advantages of the present invention:

[0015] 1. During the simulation test of the travel switch of the present invention, first, the first hydraulic rod works to drive the first hydraulic telescopic rod to extend, and then pushes the U-shaped clamping block to descend inside the clamping elevating groove, so that the distance between the bottom inside the U-shaped clamping block and the first hydraulic rod increases. Then, the travel switch to be tested is placed between the U-shaped clamping block and the first hydraulic rod. Then, the first hydraulic rod works to drive the first hydraulic telescopic rod to contract, so as to position the travel switch to be detected. Then, the second servo motor works to drive the second gear assembly to rotate, and then drives the second gear assembly to rotate. The first gear assembly is driven to rotate by the mutual meshing between the teeth on the outside of the second gear assembly and the teeth on the outside of the first gear assembly. Then, the first impact assembly and the second impact assembly are driven to rotate. The first impact assembly can complete the impact on the travel switch from left to right, and the second impact assembly can complete the impact on the travel switch from right to left. When the second servo motor completes one full rotation, the left and right two swings of the impact arm of the travel switch on one side can be completed, and at the same time, it is monitored whether the travel switch can work normally. When a fault occurs in the travel switch, the test work is stopped. At this time, the service life of the travel switch can be calculated by the number of rotations of the second servo motor, which is convenient for quickly completing the simulation detection of the travel switch.

[0016] 2. When the hardness of the travel switch housing needs to be detected in the present invention, the second hydraulic cylinder works to drive the second hydraulic telescopic rod to extend, and then pushes the hexagonal elevating block to descend, and then drives the connecting block and the hexagonal elevating ring to descend. Then, through the transmission of the second U-shaped rotating positioning block, the transmission rod and the first U-shaped rotating positioning block, the bevel angle is pushed to rotate along the positioning rod until it is perpendicular to the outside of the hexagonal positioning block. Then, the first servo motor works to drive the hexagonal positioning block to rotate, and then drives the hexagonal positioning block and the rotating pushing assembly to rotate. Then, the second servo motor works to drive the second gear assembly to rotate, and then makes the second impact assembly approach the travel switch, so as to detect the abrasion resistance of the formed switch, and the abrasion resistance detection of the travel switch can be completed simultaneously.

[0017] 3. In the present invention, by rotating the second positioning threaded pin to separate it from the second limiting cylinder, the frictional force between the second positioning threaded pin, the first servo motor and the first gear assembly is reduced, so that the second impact assembly can slide on the guide rod, thereby adjusting the position of the second impact assembly. And the same operation can adjust the position of the first impact assembly, enabling the device to detect travel switches of different sizes and expanding the detection range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of a partial structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the clamping assembly of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the first gear assembly of the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of the first impact assembly of the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the second impact assembly of the present invention.

[0024] Figure 7 It is a schematic diagram of the conversion structure of the second impact assembly of the present invention.

[0025] Figure 8 It is a schematic diagram of a partial structure of the second impact assembly of the present invention.

[0026] Figure 9 It is a schematic diagram of the structure of the rotary pushing assembly of the present invention.

[0027] The reference numerals are: 1, U-shaped positioning frame; 2, clamping assembly; 201, positioning frame; 202, first hydraulic rod; 203, first hydraulic telescopic rod; 204, clamping lifting groove; 205, U-shaped clamping block; 3, first gear assembly; 301, gear body; 302, positioning hole; 303, sliding positioning groove; 304, guide rod; 4, second gear assembly; 5, first impact assembly; 501, impact cylinder; 502, first limit cylinder; 503, guide hole; 504, first positioning threaded pin; 6, second impact assembly; 601, first servo motor; 602, second limit cylinder; 603, second positioning threaded pin; 604, hexagonal positioning block; 605, second hydraulic cylinder; 606, rotary pushing assembly; 6061, rotary plate; 6062, positioning bearing; 6063, bevel angle; 6064, first U-shaped rotary positioning block; 6065, transmission rod; 6066, second U-shaped rotary positioning block; 607, lifting sliding groove; 608, positioning block; 609, second hydraulic telescopic rod; 6010, hexagonal lifting block; 6011, connecting block; 6012, hexagonal lifting ring; 6013, positioning rod; 7, rotary positioning rod; 8, second servo motor. Detailed implementation mode

[0028] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of each structure described in the following embodiments are only examples, and the simulation test equipment for travel switches involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0029] Refer to Figures 1 to 9 , the present invention provides a simulation test equipment for travel switches, including a U-shaped positioning frame 1. A clamping assembly 2 is fixedly connected to the back of the U-shaped positioning frame 1. A rotary positioning rod 7 is installed on one side of the top of the U-shaped positioning frame 1. A first gear assembly 3 is installed on the top of the rotary positioning rod 7. A second servo motor 8 is installed on the other side of the top of the U-shaped positioning frame 1. The output shaft of the second servo motor 8 is fixedly connected to a second gear assembly 4. A first impact assembly 5 is installed on the top of the second gear assembly 4. A second impact assembly 6 is installed on the top of the first gear assembly 3.

[0030] In a preferred embodiment, the clamping assembly 2 includes a positioning frame 201. A first hydraulic rod 202 is installed on the front of the top of the positioning frame 201. The bottom of the first hydraulic rod 202 is fixedly connected to a first hydraulic telescopic rod 203. A clamping lifting groove 204 is formed at the bottom of the inner front of the positioning frame 201. The bottom of the first hydraulic telescopic rod 203 is fixedly connected to a U-shaped clamping block 205. During the process of conducting the travel switch simulation test, first, the first hydraulic rod 202 works to drive the first hydraulic telescopic rod 203 to extend, and then pushes the U-shaped clamping block 205 to descend inside the clamping lifting groove 204, thereby increasing the distance between the bottom inside the U-shaped clamping block 205 and the first hydraulic rod 202. Then, the travel switch to be tested is placed between the U-shaped clamping block 205 and the first hydraulic rod 202. Then, the first hydraulic rod 202 works to drive the first hydraulic telescopic rod 203 to contract, so as to be able to position the travel switch to be detected. Then, the second servo motor 8 works to drive the second gear assembly 4 to rotate, and then drives the second gear assembly 4 to rotate. The mutual meshing between the teeth on the outside of the second gear assembly 4 and the teeth on the outside of the first gear assembly 3 drives the first gear assembly 3 to rotate, and then drives the first impact assembly 5 and the second impact assembly 6 to rotate. The first impact assembly 5 can complete the impact on the travel switch from left to right, and the second impact assembly 6 can complete the impact on the travel switch from right to left. When the second servo motor 8 completes one full rotation, the left and right two swings of the impact arm of the travel switch on one side can be completed, and at the same time, it is monitored whether the travel switch can work normally. After the travel switch fails, the test work is stopped. At this time, the service life of the travel switch can be calculated by the number of rotations of the second servo motor 8, which is convenient for quickly completing the simulation detection of the travel switch.

[0031] In a preferred embodiment, the first gear assembly 3 includes a gear main body 301. A positioning hole 302 is formed at the top of the gear main body 301. A sliding positioning groove 303 is formed on the outside of the top of the gear main body 301. A guide rod 304 is fixedly connected to the inside of the sliding positioning groove 303.

[0032] In a preferred embodiment, the first impact assembly 5 includes an impact cylinder 501. A first limit cylinder 502 is installed at the bottom of the impact cylinder 501. A guide hole 503 is formed on the outside of the first limit cylinder 502. A first positioning threaded pin 504 is installed at the bottom of the guide hole 503.

[0033] In a preferred embodiment, the second impact assembly 6 includes a first servo motor 601. A second limit cylinder 602 is fixedly connected to the bottom of the first servo motor 601. A second positioning threaded pin 603 is installed at the bottom of the second limit cylinder 602. A hexagonal positioning block 604 is fixedly connected to the top of the first servo motor 601. A second hydraulic cylinder 605 is fixedly connected to the top of the hexagonal positioning block 604. A rotary pushing assembly 606 is installed outside the hexagonal positioning block 604. A lifting sliding groove 607 is formed at the top outside the hexagonal positioning block 604. A second hydraulic telescopic rod 609 is fixedly connected to the bottom of the second hydraulic cylinder 605. A hexagonal lifting block 6010 is fixedly connected to the bottom of the second hydraulic telescopic rod 609. A connecting block 6011 is fixedly connected to the outside of the hexagonal lifting block 6010. A hexagonal lifting ring 6012 is fixedly connected to the side of the connecting block 6011 away from the hexagonal lifting block 6010. Positioning blocks 608 are fixedly connected to the outside of the top of the hexagonal positioning block 604. Positioning rods 6013 are fixedly connected to both sides of the positioning block 608; By rotating the second positioning threaded pin 603 to separate the second positioning threaded pin 603 from the second limit cylinder 602, the friction between the second positioning threaded pin 603, the first servo motor 601 and the first gear assembly 3 is reduced, so that the second impact assembly 6 can slide on the guide rod 304, thereby adjusting the position of the second impact assembly 6. And the same operation can adjust the position of the first impact assembly 5, enabling the device to detect travel switches of different sizes and making the detection range of the device larger.

[0034] In a preferred embodiment, the rotation and push component 606 includes a rotation plate 6061. A positioning bearing 6062 is installed on one side of the rotation plate 6061 close to the hexagonal positioning block 604. Chamfers 6063 are formed on both the front and back surfaces of the rotation plate 6061. A first U-shaped rotation positioning block 6064 is fixedly connected to the top of the rotation plate 6061. A transmission rod 6065 is installed inside the first U-shaped rotation positioning block 6064. A second U-shaped rotation positioning block 6066 is installed on the side of the transmission rod 6065 away from the first U-shaped rotation positioning block 6064. When it is necessary to detect the hardness of the travel switch housing, the second hydraulic cylinder 605 works to drive the second hydraulic telescopic rod 609 to extend, then push the hexagonal lifting block 6010 to descend, and then drive the connecting block 6011 and the hexagonal lifting ring 6012 to descend. Then, through the transmission of the second U-shaped rotation positioning block 6066, the transmission rod 6065 and the first U-shaped rotation positioning block 6064, the chamfer 6063 is pushed to rotate along the positioning rod 6013 until it is perpendicular to the outer side of the hexagonal positioning block 604. Then, the first servo motor 601 works to drive the hexagonal positioning block 604 to rotate, and then drive the hexagonal positioning block 604 and the rotation and push component 606 to rotate. Then, the second servo motor 8 works to drive the second gear assembly 4 to rotate, and then make the second impact component 6 approach the travel switch, so as to detect the abrasion resistance of the forming switch, and the abrasion resistance of the travel switch can be detected simultaneously.

[0035] In a preferred embodiment, the first gear assembly 3 and the second gear assembly 4 have the same structure. The diameter of the positioning hole 302 is the same as the diameter of the output shaft of the second servo motor 8 and the diameter of the bearing on the outer side of the rotation positioning rod 7. The cross-sectional dimension of the clamping and lifting groove 204 and the dimension of the top of the U-shaped clamping block 205 have a tolerance fit. The front surface of the U-shaped clamping block 205 and the front surface of the positioning frame 201 are on the same plane. The width of the sliding positioning groove 303 and the diameter of the first limiting cylinder 502 have a clearance fit. The diameter of the guiding hole 503 and the diameter of the guiding rod 304 have a clearance fit.

[0036] In a preferred embodiment, the size of the first limiting cylinder 502 is the same as the size of the second limiting cylinder 602. A lifting groove is formed inside the upper half of the hexagonal positioning block 604. The inner dimension of the lifting groove of the hexagonal positioning block 604 and the top dimension of the hexagonal lifting block 6010 have a clearance fit. The number of openings of the lifting groove of the hexagonal positioning block 604 corresponds to the connecting block 6011. The cross-sectional dimension of the opening of the lifting groove of the hexagonal positioning block 604 and the dimension of the top of the connecting block 6011 have a clearance fit. The inner diameter of the positioning bearing 6062 and the diameter of the positioning rod 6013 are mutually matched.

[0037] Working principle of the present invention: During the simulation test of the travel switch, first, the first hydraulic rod 202 works to drive the first hydraulic telescopic rod 203 to extend, and then pushes the U-shaped clamping block 205 to descend inside the clamping lifting groove 204, thereby increasing the distance between the bottom inside the U-shaped clamping block 205 and the first hydraulic rod 202. Then, place the travel switch to be tested between the U-shaped clamping block 205 and the first hydraulic rod 202. Then, the first hydraulic rod 202 works to drive the first hydraulic telescopic rod 203 to contract, so as to be able to position the travel switch to be detected. Then, the second servo motor 8 works to drive the second gear assembly 4 to rotate, and then drives the second gear assembly 4 to rotate. The mutual meshing between the teeth on the outside of the second gear assembly 4 and the teeth on the outside of the first gear assembly 3 drives the first gear assembly 3 to rotate, and then drives the first impact assembly 5 and the second impact assembly 6 to rotate. The first impact assembly 5 can complete the impact on the travel switch from left to right, and the second impact assembly 6 can complete the impact on the travel switch from right to left. When the second servo motor 8 completes one full rotation, the left and right two swings of the impact arm of the travel switch on one side can be completed, and at the same time, it is monitored whether the travel switch can work normally. After the travel switch fails, the test work is stopped. At this time, the service life of the travel switch can be calculated by the number of rotations of the second servo motor 8, which is convenient for quickly completing the simulation detection of the travel switch;

[0038] When it is necessary to detect the hardness of the travel switch housing, the second hydraulic cylinder 605 works to drive the second hydraulic telescopic rod 609 to extend, and then pushes the hexagonal lifting block 6010 to descend, and then drives the connecting block 6011 and the hexagonal lifting ring 6012 to descend. Then, through the transmission of the second U-shaped rotating positioning block 6066, the transmission rod 6065 and the first U-shaped rotating positioning block 6064, the bevel angle 6063 is pushed to rotate along the positioning rod 6013 until it is perpendicular to the outside of the hexagonal positioning block 604. Then, the first servo motor 601 works to drive the hexagonal positioning block 604 to rotate, and then drives the hexagonal positioning block 604 and the rotating pushing assembly 606 to rotate. Then, the second servo motor 8 works to drive the second gear assembly 4 to rotate, and then makes the second impact assembly 6 approach the travel switch, so as to detect the abrasion resistance of the forming switch, and can simultaneously complete the abrasion resistance detection of the travel switch;

[0039] By rotating the second positioning threaded pin 603 to separate the second positioning threaded pin 603 from the second limiting cylinder 602, the friction between the second positioning threaded pin 603, the first servo motor 601 and the first gear assembly 3 can be reduced, so that the second impact assembly 6 can slide on the guide rod 304, thereby adjusting the position of the second impact assembly 6. And the same operation can adjust the position of the first impact assembly 5, so that the device can detect travel switches of different sizes, and the detection range of the device is larger.

[0040] The following are several points to be noted: First, in the description of this application, it should be noted that unless otherwise specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the internal communication of two components. It can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0041] Second, in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0042] Finally, the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A simulation test device for a travel switch, comprising a U-shaped positioning frame (1), characterized in that: The back of the U-shaped positioning frame (1) is fixedly connected with a clamping assembly (2). One side of the top of the U-shaped positioning frame (1) is provided with a rotating positioning rod (7). The top of the rotating positioning rod (7) is provided with a first gear assembly (3). The other side of the top of the U-shaped positioning frame (1) is provided with a second servo motor (8). The output shaft of the second servo motor (8) is fixedly connected with a second gear assembly (4). The top of the second gear assembly (4) is provided with a first impact assembly (5). The top of the first gear assembly (3) is provided with a second impact assembly (6). The second impact assembly (6) includes a first servo motor (601). The bottom of the first servo motor (601) is fixedly connected with a second limit cylinder (602). The bottom of the second limit cylinder (602) is provided with a second positioning threaded pin (603). The top of the first servo motor (601) is fixedly connected with a hexagonal positioning block (604). The top of the hexagonal positioning block (604) is fixedly connected with a second hydraulic cylinder (605). The outside of the hexagonal positioning block (604) is provided with a rotating pushing assembly (606). The top of the outside of the hexagonal positioning block (604) is provided with a lifting sliding groove (607). The bottom of the second hydraulic cylinder (605) is fixedly connected with a second hydraulic telescopic rod (609). The bottom of the second hydraulic telescopic rod (609) is fixedly connected with a hexagonal lifting block (6010). The outside of the hexagonal lifting block (6010) is fixedly connected with a connecting block (6011). One side of the connecting block (6011) away from the hexagonal lifting block (6010) is fixedly connected with a hexagonal lifting ring (6012). The outside of the top of the hexagonal positioning block (604) is fixedly connected with a positioning block (608). Both sides of the positioning block (608) are fixedly connected with positioning rods (6013). The rotating pushing assembly (606) includes a rotating plate (6061). One side of the rotating plate (6061) close to the hexagonal positioning block (604) is provided with a positioning bearing (6062). The front and back of the rotating plate (6061) are both provided with bevels (6063). The top of the rotating plate (6061) is fixedly connected with a first U-shaped rotating positioning block (6064). The inside of the first U-shaped rotating positioning block (6064) is provided with a transmission rod (6065). One side of the transmission rod (6065) away from the first U-shaped rotating positioning block (6064) is provided with a second U-shaped rotating positioning block (6066). The clamping assembly (2) includes a positioning frame (201). The front of the top of the positioning frame (201) is provided with a first hydraulic rod (202). The bottom of the first hydraulic rod (202) is fixedly connected with a first hydraulic telescopic rod (203). The bottom of the inside of the front of the positioning frame (201) is provided with a clamping lifting groove (204). The bottom of the first hydraulic telescopic rod (203) is fixedly connected with a U-shaped clamping block (205). The first gear assembly (3) includes a gear body (301). A positioning hole (302) is formed at the top of the gear body (301). A sliding positioning groove (303) is formed on the outer side of the top of the gear body (301). A guide rod (304) is fixedly connected to the inner side of the sliding positioning groove (303). The first impact assembly (5) includes an impact cylinder (501). A first limit cylinder (502) is installed at the bottom of the impact cylinder (501). A guide hole (503) is formed on the outer side of the first limit cylinder (502). A first positioning threaded pin (504) is installed at the bottom of the guide hole (503).

2. The simulation test device for a travel switch according to claim 1, characterized in that: The first gear assembly (3) has the same structure as the second gear assembly (4). The diameter of the positioning hole (302) is the same as the diameter of the output shaft of the second servo motor (8) and the diameter of the bearing on the outer side of the rotary positioning rod (7). The dimensional tolerance between the cross-sectional dimension of the clamping lifting groove (204) and the dimension of the top of the U-shaped clamping block (205) is coordinated. The front surfaces of the U-shaped clamping block (205) and the positioning frame (201) are in the same plane. There is a clearance fit between the width of the sliding positioning groove (303) and the diameter of the first limit cylinder (502). There is a clearance fit between the diameter of the guide hole (503) and the diameter of the guide rod (304).

3. The simulation test device for a travel switch according to claim 1, characterized in that: The dimension of the first limit cylinder (502) is the same as that of the second limit cylinder (602). A lifting groove is formed on the inner side of the upper half of the hexagonal positioning block (604). There is a clearance fit between the inner dimension of the lifting groove of the hexagonal positioning block (604) and the dimension of the top of the hexagonal lifting block (6010). The number of openings of the lifting groove of the hexagonal positioning block (604) corresponds to the connecting block (6011). There is a clearance fit between the cross-sectional dimension of the opening of the lifting groove of the hexagonal positioning block (604) and the dimension of the top of the connecting block (6011). The inner diameter of the positioning bearing (6062) is matched with the diameter of the positioning rod (6013).

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