Testing device suitable for automobile clamp

Abstract

The utility model provides a testing device suitable for an automobile clamp, which comprises a main body frame, a fixing part, a hoisting part, a testing part, a protection part and a control part, and is characterized in that the main body frame comprises a base, a working seat and a load seat, and the fixing part comprises a manual calibration mechanism and a limiting and fixing mechanism; the hoisting part comprises a position adjusting mechanism and a grabbing and fixing mechanism, the testing part comprises a collision simulation mechanism and a wind power environment simulation mechanism, and the protection part comprises a fourth electric telescopic rod, a mounting rod and a loose-leaf plate. The machine is adopted to assist in assembling automobile parts, so that the labor intensity is greatly reduced; a closed environment is adopted, space is saved, mechanical auxiliary testing is adopted, and labor is saved; mechanical auxiliary testing is achieved, testing conditions are highly unified, precision is high, and testing efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile fixtures, in particular to a testing device suitable for automobile fixtures. Background Art

[0002] A fixture refers to a device used to fix the processing object in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. In the process of automobile manufacturing, different fixtures are needed to fix the components of the automobile to facilitate the installation of different parts. After the automobile frame is installed, connecting plates, drive axle housings and other components need to be installed at the bottom of the frame. For example, Chinese patent CN220372719U discloses a fixture tool for automobile filter element housing, which relates to the field of automobile fixture tooling. In order to solve the problem in the prior art that the processing of automobile filter element housings requires the use of fixture tooling, the existing fixture can only clamp the filter element housing, has a relatively simple function, and is not convenient for processing the rotating ring of the filter element housing. Support assemblies are provided at both ends of the middle part of the upper end of the bottom plate, and circular grooves are provided on the support assemblies. A connecting tube is provided in the circular groove, and a second spring limiter is fixedly connected to the middle part of the connecting tube, and a first spring limiter is provided on the other side of the middle part of the connecting tube. One end of the connecting tube is fixedly connected to the motor outer frame, and a circular limit assembly is provided at the other end of the connecting tube. A clamping assembly is provided at one end of the circular limit assembly, a first clamping plate is provided at the upper end of the clamping assembly, and a second clamping plate is provided at the lower end of the clamping assembly.

[0003] Automotive fixtures, such as the one mentioned above, need to be tested and debugged before leaving the factory. Traditional manual testing has the following drawbacks:

[0004] First, the entire process of manually transferring auto parts (to which the fixture is adapted) is labor-intensive;

[0005] Second, the testing environment requirements are high, the process is cumbersome, multiple staff members are needed, and a large amount of space is occupied.

[0006] Third, due to differences in staff and state experience, it is difficult to unify the test accuracy and the test efficiency is low. Utility Model Content

[0007] The utility model provides a testing device suitable for automobile fixtures, which can effectively solve the problems mentioned in the background technology.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A testing device suitable for automobile fixtures comprises a main frame, a fixing part, a hoisting part, a testing part, a protection part and a control part.

[0010] Specifically, the main frame includes a base, a work seat, and a load seat. The base includes a rectangular hollow container, on the upper bottom plate of which a rectangular through hole is provided; the four rectangular through holes are distributed in the shape of a "mouth". The work seat is set on the base, including a rectangular container, on the front side plate of which a "U"-shaped opening groove is provided, a circular mounting through hole is provided on the right side plate, a rectangular ventilation through hole is provided on the left side plate, and a strip through hole is provided on the upper bottom plate; a movable window is provided in the rectangular ventilation through hole; and a movable door is connected to the hinge in the "U"-shaped opening through slot. The load seat is set on the base through a buffer structure and is located inside the work seat. It includes a rectangular hollow container, on the upper bottom plate of which a strip mounting groove and two strip through holes are provided. The buffer structure includes a relay carrier, a "U"-shaped block, a limit column, a slider and a buffer spring; the "U"-shaped block is arranged on the relay carrier; the relay carrier is arranged on the base through the pressure sensor module; the limit column is arranged on the "U"-shaped block; the slider is slidably connected to the limit column, and the two ends of the slider are connected to the "U"-shaped block through the buffer spring; the slider is connected to the load seat base.

[0011] Specifically, the fixing part includes a manual calibration mechanism and a limit fixing mechanism. The manual calibration mechanism includes an adjustment screw, a positioning block, a fixing block, and a limit slide rail. The limit slide rail is set in a strip-shaped mounting groove. The fixing block is slidably connected to the limit slide rail. A rolling bearing is set on the fixing block. The positioning block is set on the load seat and has an adjustment screw hole set thereon. The adjustment screw is set in the adjustment screw hole. The end of the adjustment screw is set on the inner ring of the rolling bearing. The limit fixing mechanism includes a screw stepper motor, a slide bar, a movable carrier plate, an electric telescopic rod, and an "L"-shaped fixing block. The screw stepper motor and the slide bar are set in the load seat. The movable carrier plate is slidably connected to the slide bar and is connected to the nut seat of the screw stepper motor. The electric telescopic rod is set on the movable end of the movable carrier plate. The "L"-shaped fixing block is set on the movable end of the electric telescopic rod.

[0012] Specifically, the hoisting part includes a position adjustment mechanism and a gripping and fixing mechanism. The position adjustment mechanism includes a servo motor 1, a movable carrier 2, and a mounting carrier 1; the servo motor 1, a reel 1, and a limiting slide 2 are arranged on the upper base plate of the workbench; the servo motor 1 and the reel 1 are connected by a reduction gearbox; the movable carrier 2 is slidably connected to the limiting slide 2; the movable carrier 2 and the reel 1 are connected by a traction rope; the mounting carrier 1 is located in the workbench and is connected to the movable carrier 2 by a connecting short column. The gripping and fixing mechanism includes an electric telescopic rod 2, an electromagnet 1, a clamping motor 1, a servo motor 2, a reel 2, and a fixed claw; the electric telescopic rod 2 is arranged on the mounting carrier 1; the electromagnet 1 and the clamping motor 1 are arranged on the movable end of the electric telescopic rod 2; the servo motor 2 and the reel 2 are arranged on the mounting carrier 1; the servo motor 2 and the reel 2 are connected by a reduction gearbox; the fixed claw is connected to the reel 2 by a traction rope.

[0013] Specifically, the test part includes a collision simulation mechanism and a wind environment simulation mechanism. The collision simulation mechanism includes a transfer structure and a power release structure. The transfer structure includes a lead screw stepper motor II, a slide bar II, and a movable carrier plate III; the lead screw stepper motor II and the slide bar II are arranged on the base; the movable carrier plate III is slidably connected to the slide bar II and is connected to the nut seat of the lead screw stepper motor II. The power release structure includes an "L"-shaped positioning side plate, a load-bearing carrier plate, a servo motor III, a servo motor IV, an electric telescopic rod III, a push rod motor I, an electromagnet II, an electromagnet III, an electromagnet IV, and a counterweight ball; the load-bearing carrier plate is arranged on the movable carrier plate III through the "L"-shaped positioning side plate; a circular pin hole I is arranged on the "L"-shaped positioning side plate; the circular pin hole I is arc-shaped; the servo motor IV, a reel IV, the servo motor III, and a reel III are arranged on the load-bearing carrier plate; the servo motor III and the reel III are connected by a reduction gearbox; the servo motor IV and the reel IV are connected by a reduction gearbox; the counterweight ball is arranged on the reel IV through a traction rope; the counterweight ball includes an iron ball core and a latex shell; the electromagnet II is arranged on the reel III through a traction rope; the electric telescopic rod III is arranged on the "L"-shaped positioning side plate; the electromagnet III is arranged on the movable end of the electric telescopic rod III; the push rod motor I is arranged on the rear side of the "L"-shaped positioning side plate; the electromagnet IV is arranged on the movable end of the push rod motor I. The wind environment simulation mechanism includes an adjustable-speed fan and a connecting air duct; the adjustable-speed fan is arranged in the circular installation through hole I; the connecting air duct is arranged on the inner wall of the right side plate of the rectangular container I.

[0014] Specifically, the protection part includes an electric telescopic rod IV, a mounting rod, and a hinge plate. The electric telescopic rod IV is arranged in the base; the mounting rod is arranged on the movable end of the electric telescopic rod IV; a mounting groove is arranged on the mounting rod; the hinge plate is inserted into the mounting groove.

[0015] Specifically, the control part includes a control mechanism, a feedback mechanism, and a PLC controller. The control mechanism includes a rotary fixed switch I, a forward switch I, a reverse switch I, a forward switch II, a reverse switch II, a downward movement switch, a fixed switch II, a wind speed regulation switch, a protection switch, a height adjustment switch, an unloading switch, and a pause switch. The feedback mechanism includes a plurality of distance sensor modules and a variable-color light-emitting diode.

[0016] Furthermore, a movable cover plate is added to the working seat and is adapted to the adjustable-speed fan.

[0017] Advantages over the prior art:

[0018] In the present utility model, through the main frame, the fixing part, the hoisting part, the test part, the protection part, and the control part, the following functions are realized:

[0019] Firstly, mechanical assistance is provided for assembling automotive parts, greatly reducing the labor intensity;

[0020] Second, the closed environment saves space, and the machine-assisted testing saves labor;

[0021] Third, mechanically assisted testing has highly unified test conditions, high precision, and significantly improved test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the top view of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the utility model when viewed from above;

[0024] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the utility model from a side view;

[0025] Figure 4 This is a schematic diagram of a partially enlarged side cross-sectional structure of the utility model;

[0026] Figure 5 This is a schematic diagram of the system structure of the utility model Figure 1 ;

[0027] Figure 6 This is a schematic diagram of the system structure of the utility model Figure 2 .

[0028] Figure: 101. Base, 102. Work seat, 103. Load seat, 104. Buffer structure, 201. Adjusting screw, 202. Limiting slide rail 1, 203. Lead screw stepper motor 1, 204. Electric telescopic rod 1, 205. "L"-shaped fixing block, 301. Servo motor 1, 302. Movable carrier plate 2, 303. Electric telescopic rod 2, 304. Servo motor 2, 305. Fixing claw, 401. Lead screw stepper motor 2, 402. Movable carrier plate 3, 403. Load-bearing carrier plate, 404. Servo motor 3, 405. Servo motor 4, 406. Counterweight ball, 407. Electromagnet 2, 408. Electric telescopic rod 3, 409. Push rod motor 1, 410. Adjustable speed fan, 501. Electric telescopic rod 4, 502. Loose-leaf board. DETAILED DESCRIPTION

[0029] Example 1, refer to the attached Figures 1-6 , a testing device suitable for automobile fixtures, including a main frame, a fixing part, a lifting part, a testing part, a protection part and a control part.

[0030] The main frame includes a base 101 , a working seat 102 and a load seat 103 .

[0031] The base 101 comprises a rectangular hollow container.

[0032] On the upper bottom plate of the first cuboid hollow container, a first rectangular through-hole is provided; the four first rectangular through-holes are distributed in a "mouth" shape.

[0033] The working seat 102 is arranged on the base 101.

[0034] The working seat 102 includes a first rectangular container.

[0035] On the front side plate of the first rectangular container, a first "U"-shaped open through-groove is provided; a first movable door is connected by a hinge within the first "U"-shaped open through-groove.

[0036] On the right side plate of the first rectangular container, a first circular mounting through-hole is provided.

[0037] On the left side plate of the first rectangular container, a rectangular ventilation through-hole is provided, and a movable window is within the rectangular ventilation through-hole.

[0038] On the upper bottom plate of the first rectangular container, a first strip-shaped through-hole is provided.

[0039] The load seat 103 is arranged on the base 101 through a buffer structure 104; the load seat 103 is located within the working seat 102.

[0040] The load seat 103 includes a second cuboid hollow container.

[0041] On the upper bottom plate of the second cuboid hollow container, a strip-shaped mounting groove and a second strip-shaped through-hole are provided.

[0042] The buffer structure 104 includes a relay carrier plate, a "U"-shaped block, a limit post, a slider, and a buffer spring.

[0043] The "U"-shaped block is arranged on the relay carrier plate.

[0044] The relay carrier plate is arranged on the base 101 through a pressure sensor module.

[0045] The limit post is arranged on the "U"-shaped block.

[0046] The slider is slidably connected to the limit post; and both ends of the slider are connected to the "U"-shaped block through buffer springs; the slider is connected to the bottom plate of the load seat 103.

[0047] The fixed part includes a manual calibration mechanism and a limit fixing mechanism.

[0048] The manual calibration mechanism includes an adjusting screw 201, a positioning block, a fixing block, and a first limit slide rail 202.

[0049] The first limit slide rail 202 is arranged within the strip-shaped mounting groove.

[0050] The fixing block is slidably connected to the first limit slide rail 202; a rolling bearing is arranged on the fixing block.

[0051] The positioning block is arranged on the load seat 103; an adjusting screw hole is arranged on the positioning block.

[0052] The adjusting screw 201 is arranged in the adjusting screw hole; the end of the adjusting screw 201 is arranged on the inner ring of the rolling bearing.

[0053] The position limiting and fixing mechanism includes a screw stepping motor 203, a sliding rod 1, a movable carrier plate 1, an electric telescopic rod 204 and an "L"-shaped fixing block 205.

[0054] The screw stepper motor 203 and the slide rod 1 are disposed in the load base 103 .

[0055] The movable carrier plate 1 is slidably connected to the slide rod 1 and is connected to the nut seat of the screw stepping motor 1 203.

[0056] The electric telescopic rod 204 is disposed on the movable end of the movable carrier plate 1.

[0057] The "L"-shaped fixing block 205 is arranged on the movable end of the electric telescopic rod 204.

[0058] The lifting part includes a position adjustment mechanism and a grabbing and fixing mechanism.

[0059] The position adjustment mechanism includes a servo motor 1 301 , a movable carrier 2 302 and a mounting carrier 1 .

[0060] The servo motor 1 301 , the reel 1 and the limiting slide rail 2 are arranged on the upper base plate of the working seat 102 ; the servo motor 1 301 and the reel 1 are connected through a reduction gear box.

[0061] The second movable carrier plate 302 is slidably connected to the second limiting slide rail; the second movable carrier plate 302 and the first reel are connected by a traction rope.

[0062] The first mounting plate and the second movable mounting plate 302 are connected via connecting short columns; the first mounting plate is located inside the working seat 102 .

[0063] The grabbing and fixing mechanism includes a second electric telescopic rod 303 , an electromagnet 1, a first clamping claw motor 1, a second servo motor 304 , a second reel and a fixing claw 305 .

[0064] The second electric telescopic rod 303 is disposed on the first mounting plate.

[0065] The first electromagnet and the first clamping motor are arranged on the movable end of the second electric telescopic rod 303 .

[0066] The second servo motor 304 and the second reel are disposed on the first mounting carrier.

[0067] The servo motor 2 304 and the reel 2 are connected via a reduction gear box.

[0068] The fixed claw 305 is connected to the second reel through a towing rope.

[0069] The test part includes a collision simulation mechanism and a wind environment simulation mechanism.

[0070] The collision simulation mechanism includes a transfer structure and a power release structure.

[0071] The transfer structure includes a lead screw stepping motor two 401, a slide bar two, and a movable carrier plate three 402.

[0072] The lead screw stepping motor two 401 and the slide bar two are arranged on the base 101.

[0073] The movable carrier plate three 402 is slidably connected to the slide bar two and is connected to the nut seat of the lead screw stepping motor two 401.

[0074] The power release structure includes an "L"-shaped positioning side plate, a load-bearing carrier plate 403, a servo motor three 404, a servo motor four 405, an electric telescopic rod three 408, a push rod motor one 409, an electromagnet two 407, an electromagnet three, an electromagnet four, and a counterweight ball 406.

[0075] The load-bearing carrier plate 403 is arranged on the movable carrier plate three 402 through the "L"-shaped positioning side plate.

[0076] A circular pin hole one is arranged on the "L"-shaped positioning side plate; the circular pin hole one is distributed in an arc shape.

[0077] The servo motor four 405, the fourth reel, the servo motor three 404, and the third reel are arranged on the load-bearing carrier plate 403; the servo motor three 404 and the third reel are connected by a reduction gearbox; the servo motor four 405 and the fourth reel are connected by a reduction gearbox.

[0078] The counterweight ball 406 is arranged on the fourth reel through a towing rope; the counterweight ball 406 includes an iron ball core and a latex outer shell.

[0079] The electromagnet two 407 is arranged on the third reel through a towing rope.

[0080] The electric telescopic rod three 408 is arranged on the "L"-shaped positioning side plate.

[0081] The electromagnet three is arranged on the movable end of the electric telescopic rod three 408.

[0082] The push rod motor one 409 is arranged on the rear side of the "L"-shaped positioning side plate.

[0083] The electromagnet four is arranged on the movable end of the push rod motor one 409.

[0084] The wind environment simulation mechanism includes an adjustable-speed fan 410 and a connecting air duct.

[0085] The variable-speed fan 410 is arranged within a circular mounting through-hole one.

[0086] The connecting air duct is arranged on the inner wall of the right side plate of the rectangular container one.

[0087] The protection part includes the electric telescopic rod four 501, the mounting rod and the hinge plate 502.

[0088] The electric telescopic rod four 501 is arranged within the base 101.

[0089] The mounting rod is arranged on the movable end of the electric telescopic rod four 501; a mounting groove is arranged on the mounting rod.

[0090] The hinge plate 502 is inserted into the mounting groove.

[0091] The control part includes a control mechanism, a feedback mechanism and a PLC controller.

[0092] The control mechanism includes a rotary fixed switch one, a forward switch one, a backward switch one, a forward switch two, a backward switch two, a downward movement switch, a fixed switch two, a wind speed regulation switch, a protection switch, a height adjustment switch, an unloading switch, a pause switch.

[0093] The rotary fixed switch one, the forward switch one, the backward switch one, the forward switch two, the backward switch two, the downward movement switch, the fixed switch two, the wind speed regulation switch, the protection switch, the height adjustment switch, the unloading switch, the pause switch are arranged on the inner wall of the side plate of the working seat 102.

[0094] The feedback mechanism includes a distance sensor module one, a distance sensor module two, a variable-color light-emitting diode.

[0095] The distance sensor module one is arranged on the "L"-shaped fixed block 205 and is used to assist the PLC controller in detecting the position of the vehicle fixture.

[0096] The distance sensor module two is arranged on the electric telescopic rod two 303 and the fixed claw 305 and is used to assist the PLC controller in detecting the position of the vehicle parts.

[0097] The variable-color light-emitting diode is arranged on the inner and outer walls of the side plate of the working seat 102.

[0098] Working principle and usage method:

[0099] First step, presetting:

[0100] Power on and debug this device. According to the size of the vehicle fixture to be tested, operate by rotating the handle of the adjusting screw 201 to adjust the position of the fixed block.

[0101] Place the automotive parts to be adapted (for the test fixture) on the grasping and fixing mechanism. The specific process is as follows: Place the automotive parts on the load seat 103; Press the forward switch one (or the backward switch one), and the PLC controller outputs a signal to the servo motor one 301; The servo motor one 301 drives the movable carrier plate one to move above the automotive parts in an orderly manner; Then press the fixing switch two, the distance sensor module two outputs a signal to the PLC controller, and the PLC controller outputs signals to the electric telescopic rod two 303, the electromagnet one, the jaw motor one, and the servo motor two 304. The electric telescopic rod two 303 starts, and the electromagnet one and the jaw motor one start with a delay to fix the automotive parts. The servo motor two 304 starts to move the fixing jaw 305 downward and installs the fixing jaw 305 on the automotive parts; Press the fixing switch two again, and the electric telescopic rod two 303, the electromagnet one, and the jaw motor one are reset in an orderly manner, and finally the fixing of the automotive parts is completed.

[0102] According to the height of the automotive parts, press the height adjustment switch, and the PLC controller outputs a signal to the servo motor four 405. The servo motor four 405 drives the counterweight ball 406 to move in an orderly manner.

[0103] Step two, fixing:

[0104] Place the automotive fixture to be tested on the load seat 103. Press the fixing switch, and the PLC controller outputs signals to the lead screw stepper motor one 203 and the electric telescopic rod one 204. The electric telescopic rod one 204 drives the "L"-shaped fixing block 205 to move upward to the height where the automotive fixture is located. The lead screw stepper motor one 203 drives the "L"-shaped fixing block 205 to approach the automotive fixture with a delay until the distance between the distance sensor module one and the automotive fixture meets the preset value, that is, the automotive fixture is fixed.

[0105] When the automotive fixture exceeds the preset value, the PLC controller outputs a signal to the color-changing light-emitting diode, and the color-changing light-emitting diode displays red.

[0106] Step three, fixture loading:

[0107] Press the fixing switch two again, the distance sensor module two outputs a signal to the PLC controller, and the PLC controller outputs signals to the electric telescopic rod two 303, the electromagnet one, the jaw motor one, and the servo motor two 304.

[0108] The electric telescopic rod two 303 starts, and the electromagnet one and the jaw motor one start with a delay to place the automotive parts on the automotive fixture. After the automotive fixture is fixed, remove the fixing jaw 305 on the automotive parts. Then, long-press the fixing switch two to reset the electric telescopic rod two 303, the electromagnet one, the jaw motor one, and the servo motor two 304, and finally complete the fixing of the automotive parts on the automotive fixture.

[0109] Step four, testing:

[0110] Impact simulation test:

[0111] Press the forward switch two (or the backward switch two), and the PLC controller outputs a signal to the lead screw stepper motor two 401. The lead screw stepper motor two 401 drives the movable carrier three 402 to move orderly.

[0112] Press the impact switch, and the PLC controller outputs signals to the servo motor three 404, the electric telescopic rod three 408, the push rod motor one 409, the electromagnet two 407, the electromagnet three, and the electromagnet four.

[0113] The electric telescopic rod three 408 and the electromagnet three are activated, driving the electromagnet two 407 to move to one side of the counterweight ball 406; the electromagnet two 407 starts with a time delay, and the electric telescopic rod three 408 and the electromagnet three are reset; then, the servo motor three 404 is activated to transfer the counterweight ball 406 to a preset height; the push rod motor one 409 drives the electromagnet four to move forward and fix the counterweight ball 406. After a 5-second delay, the electromagnet four is turned off, causing the counterweight ball 406 to impact the auto parts under the action of gravity. This facilitates the staff to detect the quality of the auto fixture.

[0114] Open environment simulation test (wind force):

[0115] Rotate the wind speed regulating switch, and the PLC controller outputs a signal to the variable-speed fan 410. The variable-speed fan 410 blows air on the auto parts.

[0116] Step 5, protection:

[0117] Before the test, press the protection switch, and the PLC controller outputs a signal to the electric telescopic rod four 501. The electric telescopic rod four 501 drives the movable leaf plate 502 to move upward, improving the safety factor.

[0118] In Example 2, on the basis of Example 1, a movable cover plate is added to the working seat 102, which is adapted to the variable-speed fan 410 to improve the dust-proof ability.

[0119] The lead screw stepper motor described in the present utility model includes a servo motor, a ball screw pair, and a nut seat; there is a screw drive between the servo motor and the ball screw pair. The ball screw pair includes a combination of a ball screw, a ball nut, a rotary steel ball, and a circulation member. The nut seat is connected to the ball nut of the ball screw pair.

Claims

1. A test device applicable to automotive fixtures, characterized in that: The invention comprises a main frame, a fixing part, a hoisting part, a testing part, a protection part and a control part; the main frame comprises a base (101), a working seat (102) and a load seat (103); the fixing part comprises a manual calibration mechanism and a limit fixing mechanism; the hoisting part comprises a position adjustment mechanism and a grabbing fixing mechanism; the testing part comprises a collision simulation mechanism and a wind environment simulation mechanism; the collision simulation mechanism comprises a transfer structure and a power release structure; the transfer structure comprises a second screw stepper motor (401), a second slide bar and a third movable carrier plate (402); the power release structure comprises an "L"-shaped positioning side plate, a load-bearing carrier plate (403), a third servo motor (404), a fourth servo motor (405), a third electric telescopic rod (408), a first push rod motor (409), a second electromagnet (407), a third electromagnet, a fourth electromagnet and a counterweight ball (406); the load-bearing plate (403) is arranged on the movable carrier plate 3 (402) through the "L"-shaped positioning side plate; a circular pin hole 1 is arranged on the "L"-shaped positioning side plate; the servo motor 4 (405), the reel 4, the servo motor 3 (404), and the reel 3 are arranged on the load-bearing plate (403); the servo motor 3 (404) and the reel 3 are connected through a reduction gear box; the servo motor 4 (405) and the reel 4 are connected through a reduction gear box; the electromagnet 2 (407) is arranged on the reel 3 through a traction rope; the electric telescopic rod 3 (408) is arranged on the "L"-shaped positioning side plate; the electromagnet 3 is arranged on the movable end of the electric telescopic rod 3 (408); the push rod motor 1 (409) is arranged on the rear side of the "L"-shaped positioning side plate; the electromagnet 4 is arranged on the movable end of the push rod motor 1 (409).

2. The test device applicable to an automotive fixture according to claim 1, wherein: The manual calibration mechanism comprises an adjusting screw (201), a positioning block, a fixing block and a limiting slide rail (202); the limiting slide rail (202) is arranged in a strip-shaped mounting groove; the fixing block is slidably connected to the limiting slide rail (202); a rolling bearing is arranged on the fixing block; the positioning block is arranged on the load seat (103); an adjusting screw hole is arranged on the positioning block; the adjusting screw (201) is arranged in the adjusting screw hole; the end of the adjusting screw (201) is arranged on the inner ring of the rolling bearing; the limiting fixing mechanism comprises a screw A stepper motor (203), a slide bar (203), a movable carrier plate (203), an electric telescopic rod (204) and an L-shaped fixed block (205); the screw stepper motor (203) and the slide bar (205) are arranged in a load seat (103); the movable carrier plate (203) is slidably connected to the slide bar (203) and is connected to the nut seat of the screw stepper motor (203); the electric telescopic rod (204) is arranged on the movable end of the movable carrier plate (203); and the L-shaped fixed block (205) is arranged on the movable end of the electric telescopic rod (204).

3. The test device for automotive fixtures according to claim 1, characterized in that: The position adjustment mechanism includes a first servo motor (301), a second movable carrier plate (302), and a first mounting carrier plate; the first servo motor (301), a first reel, and a second limiting slide rail are arranged on the upper bottom plate of the working seat (102); the first servo motor (301) and the first reel are connected by a reduction gearbox; the second movable carrier plate (302) is slidably connected to the second limiting slide rail; the second movable carrier plate (302) and the first reel are connected by a traction rope; the first mounting carrier plate is located inside the working seat (102) and is connected to the second movable carrier plate (302) by a connecting short column.

4. The test device applicable to an automotive fixture according to claim 1, wherein: The grasping and fixing mechanism includes a second electric telescopic rod (303), a first electromagnet, a first clamping jaw motor, a second servo motor (304), a second reel, and a fixing jaw (305); the second electric telescopic rod (303) is arranged on the first mounting carrier plate; the first electromagnet and the first clamping jaw motor are arranged on the movable end of the second electric telescopic rod (303); the second servo motor (304) and the second reel are arranged on the first mounting carrier plate; the second servo motor (304) and the second reel are connected by a reduction gearbox; the fixing jaw (305) is connected to the second reel by a traction rope.

5. The test device for an automotive fixture according to claim 1, characterized in that: The base (101) includes a first cuboid hollow container, and a first rectangular through hole is arranged on its upper bottom plate; the four first rectangular through holes are distributed in a "mouth" shape; the working seat (102) is arranged on the base (101) and includes a first rectangular container, a first "U"-shaped opening through groove is arranged on its front side plate, a first circular mounting through hole is arranged on its right side plate, a rectangular air-permeable through hole is arranged on its left side plate, and a first strip-shaped through hole is arranged on its upper bottom plate; an activity window is arranged in the rectangular air-permeable through hole; a first movable door is hinged in the first "U"-shaped opening through groove; the load seat (103) is arranged on the base (101) through a buffer structure (104) and is located inside the working seat (102), and includes a second cuboid hollow container, and a strip-shaped mounting groove and a second strip-shaped through hole are arranged on its upper bottom plate.

6. The testing device applicable to an automotive fixture according to claim 1, wherein: A second lead screw stepping motor (401) and a second slide bar are arranged on the base (101); a third movable carrier plate (402) is slidably connected to the second slide bar and is connected to the nut seat of the second lead screw stepping motor (401).

7. The testing device for automobile fixtures according to claim 1, characterized in that: The wind environment simulation mechanism includes an adjustable-speed fan (410) and a connecting air duct; the adjustable-speed fan (410) is arranged in the first circular mounting through hole; the connecting air duct is arranged on the inner wall of the right side plate of the first rectangular container.

8. The testing device for automotive fixtures according to claim 1, characterized in that: The protection part includes a fourth electric telescopic rod (501), a mounting rod, and a movable leaf plate (502); the fourth electric telescopic rod (501) is arranged inside the base (101); the mounting rod is arranged on the movable end of the fourth electric telescopic rod (501); a mounting groove is arranged on the mounting rod; the movable leaf plate (502) is inserted into the mounting groove.

9. The testing device for automotive fixtures according to claim 1, wherein: The counterweight ball (406) is arranged on the fourth reel through a traction rope; the counterweight ball (406) includes an iron ball core and a latex outer shell.

10. The test device for automotive fixtures according to claim 5, characterized in that: The buffer structure (104) comprises a relay carrier, a U-shaped block, a limiting column, a slider and a buffer spring; the U-shaped block is arranged on the relay carrier; the relay carrier is arranged on the base (101) through the pressure sensor module; the limiting column is arranged on the U-shaped block; the slider is slidably connected to the limiting column; and both ends of the slider are connected to the U-shaped block through the buffer spring; the slider is connected to the bottom plate of the load seat (103).

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