Calibration equipment suitable for automobile sensor

Abstract

The invention discloses calibration equipment suitable for an automobile sensor, and belongs to the technical field of sensor calibration equipment, the calibration equipment comprises two symmetrically arranged bases, a conveying belt used for conveying a force transducer is arranged between the two bases, and the outer surface of the conveying belt is provided with a plurality of clamping limiting assemblies and adjusting assemblies. According to the invention, the clamping limiting assembly is arranged, and the plurality of adaptive limiting rods are used for carrying out multi-point adaptive supporting on the peripheral side of the force transducer, so that the plurality of adaptive limiting rods can form stable supporting and limiting adaptive to the shape of the force transducer, the stability of the force transducer during calibration is improved, the accuracy of calibration data is improved, and meanwhile, the accuracy of the calibration data is improved. Through mechanical transmission between the moving wheels and the extrusion plate, the force transducer can be automatically limited and stabilized, and through cooperation with intermittent continuous conveying of the conveying belt, the automation degree of the calibration process can be improved, and the calibration efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sensor calibration equipment, and in particular relates to a calibration equipment suitable for automobile sensors. Background Art

[0002] Force sensors are an important type of automotive sensors, mainly used to measure physical quantities such as force, pressure, torque, etc. They are widely used in automobiles, especially in chassis systems, power systems, safety systems and testing fields. Sensor calibration devices are equipment used to calibrate and adjust sensors to ensure the accuracy and reliability of their measurement data.

[0003] The document with publication number CN101419111B discloses a force sensor calibration device, which includes: a motor driver, a data acquisition device, a host computer, a base plate, a bracket, a standard sensor with metrological qualification, a force generating and amplifying device, and a force conversion device. The host computer is connected to the motor driver and controls it, and the host computer is also connected to the data acquisition device and obtains data. The data acquisition device is respectively connected to the standard sensor and the sensor to be calibrated through a sensor conditioning circuit; the motor driver is connected to the force generating and amplifying device, and provides the force generating and amplifying device with a motor driving signal corresponding to the magnitude of the generated force; the bracket is vertically fixed on the base plate for fixing and installing other components; the beneficial technical effect of the invention is: a device is provided that can automatically apply continuous force values, keep the magnitude of the force stable, and can automatically calibrate various tension and pressure sensors, some torque sensors and other sensors, but in the actual calibration process, the existing technology is difficult to automatically limit and stabilize the sensor, resulting in low calibration efficiency, and therefore needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to propose a calibration device suitable for automobile sensors in order to solve the problem that it is difficult to automatically limit and stabilize the sensor in the prior art, resulting in low calibration efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A calibration device suitable for automobile sensors, comprising two symmetrically arranged bases, a conveyor belt for conveying force sensors is arranged between the two bases, a plurality of clamping limit assemblies and adjustment assemblies are arranged on the outer surface of the conveyor belt, a classification assembly is arranged at the end of the conveyor belt, and a pressure calibration plate for test calibration is arranged directly above the conveyor belt; The clamping and limiting assembly includes a placement plate connected to the surface of the conveyor belt, and symmetrically arranged fixed side plates are connected to both sides of the top of the placement plate. Sliding holes are opened on the fixed side plates, and a movable slide rod is slidably connected in the sliding holes. A sliding block is slidably connected to one end of the movable slide rod, and a movable box is connected to one end of the sliding block. A plurality of relatively movable adaptable limit rods are arranged on one side of the movable box for adapting and limiting the outer peripheral side of the force sensor.

[0006] As a further description of the above technical solution: One end of the movable slide rod away from the sliding block extends to the other side of the fixed side plate and is connected to a movable wheel, the top of the base is connected to an extrusion plate, the movable wheel is fitted with the extrusion plate, the cross-sectional shape of the extrusion plate is trapezoidal, a first spring is sleeved on the outer surface of the movable slide rod, the two ends of the first spring are respectively connected to the fixed side plate and one side of the movable wheel, a positioning groove is opened at the center position of the top of the placement plate, and the cross-sectional shape of the positioning groove is circular.

[0007] As a further description of the above technical solution: A plurality of mounting transverse plates in a linear array are connected inside the moving box, a plurality of adapting limit rods are slidably connected to the mounting transverse plates, and the outer surface of the adapting limit rod located inside the moving box is connected to a limiting bonding plate, one side of the limiting bonding plate is bonded to one side of the inner wall of the moving box, a second spring is sleeved on the outer surface of the adapting limit rod, and two ends of the second spring are respectively connected to the mounting transverse plate and one side of the limiting bonding plate.

[0008] As a further description of the above technical solution: The end of the adapter limit rod away from the limit fitting plate is connected to a ratchet bar, and the tops of multiple ratchet bars located at the same horizontal position are meshed and connected with the same limit single tooth. The top of the limit single tooth is connected to two symmetrically arranged movable rods, and the surface of the movable rod is slidably connected to a connecting plate, one side of the connecting plate is connected to one side of the mounting cross plate, and the ends of the two movable rods away from the limit single tooth extend to the other side of the connecting plate and are connected to the same connecting rod.

[0009] As a further description of the above technical solution: Sliding rods are connected to both sides of the connecting rod, and multiple sliding grooves are opened on both sides of the moving box. The sliding rods are slidably connected in the sliding grooves. A third spring is sleeved on the outer surface of the movable rod, and both ends of the third spring are respectively connected to one side of the connecting plate and one side of the limiting single tooth.

[0010] As a further description of the above technical solution: The adjustment assembly includes a screw seat, which is connected to the top of the sliding block, one side of the screw seat is connected to the side of the moving box, one side of the screw seat is threadedly connected to an adjustment screw, the outer surface of the moving slide rod is connected to a mounting piece, one end of the adjustment screw is rotatably connected to the mounting piece, and the adjustment screw extends away from one side of the screw seat to the other side of the mounting piece and is connected to a knob.

[0011] As a further description of the above technical solution: The classification component includes a collection box, one side of the collection box is connected to one side of the base through a connecting piece, a flip plate is rotatably connected to the collection box through a rotating shaft, a buffer plate that can move relatively is arranged on the top of the flip plate, a buffer spring is arranged between the flip plate and the buffer plate, and two ends of the buffer spring are respectively connected to one side of the buffer plate and between the flip plate.

[0012] As a further description of the above technical solution: A partition plate for dividing the internal space is connected inside the collection box, guide plates arranged obliquely are connected to both sides of the inner wall of the collection box, and two sealing doors are symmetrically arranged on one side of the collection box.

[0013] As a further description of the above technical solution: A driving motor is fixedly mounted on one side of the collection box via a mounting plate, and one end of the rotating shaft extends to the outside of the collection box and is connected to one end of the output shaft of the driving motor.

[0014] As a further description of the above technical solution: A bracket is connected to the top of the base, a movable cylinder is connected to the bottom of the bracket, an output end of the movable cylinder is connected to the top of a pressure calibration plate, one side of the pressure calibration plate is connected to a data display device via a connecting cable, one side of the data display device is connected to one side of one of the bases, two transmission rollers are rotatably connected between the two bases, the conveyor belt is wound between the two transmission rollers, and a bearing plate is connected between the two bases, and the top of the bearing plate is in contact with the surface of the conveyor belt.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, by setting a clamping limit assembly, the placement plate drives the adapting limit rod to contact and fit the periphery of the force sensor through the moving slide rod, the moving wheel, the extrusion plate, the moving slide rod, the sliding block and the moving box, and the force sensor generates pressure on the adapting limit rod, so that the adapting limit rod, the ratchet bar and the limiting single tooth are matched to avoid the adapting limit rod from returning, and cooperates with the second spring to realize single-point support for the force sensor, and the outer peripheral side of the force sensor is multi-point adaptively supported by multiple adapting limit rods, so that the multiple adapting limit rods can form a stable support limit that adapts to the shape of the force sensor, improve the stability of the force sensor during calibration, and improve the accuracy of the calibration data. At the same time, through the mechanical transmission between the moving wheel and the extrusion plate, the force sensor can realize automatic limit stabilization, and cooperate with the intermittent continuous transportation of the conveyor belt to improve the degree of automation of the calibration process and improve the calibration efficiency.

[0016] 2. In the present invention, by setting a classification component, when the force sensor is calibrated as qualified, the driving motor drives the flip plate to rotate clockwise, so that the flip plate drives the buffer plate to tilt to one side, and the force sensor falls on the inclined buffer plate, and after being shock-absorbing and buffered by the buffer spring, it falls into the collection box and into a separate space separated by the partition plate. When the sensor is calibrated as unqualified, the driving motor rotates counterclockwise, so that the flip plate and the buffer plate tilt toward the other side, and the unqualified force sensor falls into the space on the other side. Through the cooperation of the buffer plate and the buffer spring, the falling force sensor can be energy-absorbing and buffered, and the automatic blanking of the clamping limit assembly can be cooperated to realize the automatic recovery of the calibrated force sensor, and the driving motor drives the flipping of the flip plate to automatically distinguish and screen qualified and unqualified force sensors, thereby reducing subsequent operation procedures.

[0017] 3. In the present invention, by setting an adjustment component, the staff turns the knob, and the knob drives the sliding block to move on the movable slide rod by adjusting the screw and the screw seat, so that the distance between the two movable boxes changes, so that the movable box and the adapter limit rod can be suitable for force sensors of different specifications, meet the calibration needs of different sensors, and improve the overall adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure from another viewing angle of the present invention; Figure 3 It is a partial three-dimensional cross-sectional structural schematic diagram of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the clamping and limiting assembly of the present invention; Figure 5 It is a schematic diagram of the internal structure of the mobile box of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram of part A in the middle; Figure 7 It is a schematic diagram of the internal three-dimensional structure of the clamping and limiting assembly of the present invention; Figure 8 It is a schematic diagram of the three-dimensional cross-sectional structure of the collecting component of the present invention.

[0019] Legend: 1. Bracket; 2. Pressure calibration plate; 3. Base; 4. Data display device; 5. Clamping and limiting assembly; 501. Extrusion plate; 502. Placement plate; 503. Positioning slot; 504. Adapting and limiting rod; 505. Moving box; 506. Sliding block; 507. Moving slide rod; 508. Fixed side plate; 509. First spring; 510. Moving wheel; 512. Limiting and fitting plate; 513. Second spring; 514. Installing horizontal plate; 515. Connecting plate; 516. Sliding rod; 517. Linking rod; 518. Ratchet bar; 519. Limiting single tooth; 520. Third spring; 521. Movable rod; 6. Conveyor belt; 7. Sorting component; 701. Driving motor; 702. Collecting box; 703. Sealing door; 704. Buffer plate; 705. Buffer spring; 706. Flip plate; 707. Guide plate; 708. Partition plate; 8. Movable cylinder; 9. Adjustment component; 901. Screw seat; 902. Adjustment screw; 903. Mounting part; 904. Knob; 10. Loading plate; 11. Transmission roller. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 8 , the present invention provides a technical solution: A calibration device suitable for automobile sensors comprises two symmetrically arranged bases 3, a conveyor belt 6 for conveying force sensors is arranged between the two bases 3, a plurality of clamping limit components 5 and an adjustment component 9 are arranged on the outer surface of the conveyor belt 6, a classification component 7 is arranged at the end of the conveyor belt 6, a pressure calibration plate 2 for test calibration is arranged directly above the conveyor belt 6, a bracket 1 is connected to the top of the base 3, a movable cylinder 8 is connected to the bottom of the bracket 1, an output end of the movable cylinder 8 is connected to the top of the pressure calibration plate 2, one side of the pressure calibration plate 2 is connected to a data display device 4 through a connecting cable, one side of the data display device 4 is connected to one side of one of the bases 3, two transmission rollers 11 are rotatably connected between the two bases 3, the conveyor belt 6 is wound between the two transmission rollers 11, and a bearing plate 10 is connected between the two bases 3, and the top of the bearing plate 10 is in contact with the surface of the conveyor belt 6.

[0022] The clamping and limiting assembly 5 includes a placement plate 502 connected to the surface of the conveyor belt 6, and the top two sides of the placement plate 502 are connected to symmetrically arranged fixed side plates 508, and the fixed side plates 508 are provided with sliding holes, and a movable slide rod 507 is slidably connected in the sliding hole, and one end of the movable slide rod 507 is slidably connected to a sliding block 506, and one end of the sliding block 506 is connected to a movable box 505, and one side of the movable box 505 is provided with a plurality of relatively movable adapter limit rods 504 for adapting and fitting the outer peripheral side of the force measuring sensor. The movable slide rod 507 extends from one end of the sliding block 506 to the other end of the fixed side plate 508. The side of the placing plate 502 is connected with a moving wheel 510, the top of the base 3 is connected with an extrusion plate 501, the moving wheel 510 is fitted with the extrusion plate 501, the cross-sectional shape of the extrusion plate 501 is trapezoidal, the outer surface of the moving slide bar 507 is sleeved with a first spring 509, the two ends of the first spring 509 are respectively connected to the fixed side plate 508 and one side of the moving wheel 510, a positioning groove 503 is opened at the center of the top of the placing plate 502, and the cross-sectional shape of the positioning groove 503 is circular, a plurality of installation horizontal plates 514 in a linear array are connected in the moving box 505, a plurality of adapter limit rods 504 are slidably connected to the installation horizontal plate 514, and the positioning groove 503 is provided with a plurality of adapter limit rods 504. The outer surface of the adapter limit rod 504 inside the moving box 505 is connected to the limit fitting plate 512, one side of the limit fitting plate 512 fits with one side of the inner wall of the moving box 505, and the outer surface of the adapter limit rod 504 is sleeved with a second spring 513, and the two ends of the second spring 513 are respectively connected to the mounting cross plate 514 and one side of the limit fitting plate 512, and the end of the adapter limit rod 504 away from the limit fitting plate 512 is connected to a ratchet bar 518, and the tops of multiple ratchet bars 518 located at the same horizontal position are meshed and connected with the same limit single tooth 519, and the top of the limit single tooth 519 is connected with two symmetrically arranged A movable rod 521, the surface of which is slidably connected to a connecting plate 515, one side of the connecting plate 515 is connected to one side of the mounting cross plate 514, the two movable rods 521 extend from one end of the limiting single tooth 519 to the other side of the connecting plate 515 and are connected to the same connecting rod 517, both sides of the connecting rod 517 are connected to sliding rods 516, a plurality of sliding grooves are provided on both sides of the movable box 505, the sliding rod 516 is slidably connected in the sliding grooves, a third spring 520 is sleeved on the outer surface of the movable rod 521, and both ends of the third spring 520 are respectively connected to one side of the connecting plate 515 and one side of the limiting single tooth 519.

[0023] The specific implementation method is as follows: by setting the clamping limit assembly 5, the placement plate 502 drives the adapting limit rod 504 to contact and fit the periphery of the force sensor through the moving slide bar 507, the moving wheel 510, the extrusion plate 501, the moving slide bar 507, the sliding block 506 and the moving box 505, and the force sensor generates pressure on the adapting limit rod 504, so that the adapting limit rod 504, the ratchet bar 518, and the limit single tooth 519 are matched to prevent the adapting limit rod 504 from returning to its original position, and cooperate with the second spring 513 to achieve The single-point support of the force sensor is achieved by providing multi-point adaptive support on the outer peripheral side of the force sensor through multiple adaptive limit rods 504, so that the multiple adaptive limit rods 504 can form a stable support limit that adapts to the shape of the force sensor, thereby improving the stability of the force sensor during calibration and the accuracy of the calibration data. At the same time, through the mechanical transmission between the moving wheel 510 and the extrusion plate 501, the force sensor can achieve automatic limiting and stabilization, and with the intermittent continuous transportation of the conveyor belt 6, the degree of automation of the calibration process can be improved.

[0024] The adjustment assembly 9 includes a screw seat 901, which is connected to the top of the sliding block 506, one side of the screw seat 901 is connected to the side of the moving box 505, one side of the screw seat 901 is threadedly connected with an adjustment screw 902, the outer surface of the moving slide rod 507 is connected with a mounting member 903, one end of the adjustment screw 902 is rotatably connected to the mounting member 903, and the adjustment screw 902 extends from one side of the screw seat 901 to the other side of the mounting member 903 and is connected with a knob 904.

[0025] The specific implementation method is as follows: by setting the adjustment component 9, the staff turns the knob 904, and the knob 904 drives the sliding block 506 to move on the movable slide rod 507 by adjusting the screw 902 and the screw seat 901, so that the distance between the two movable boxes 505 changes, so that the movable box 505 and the adapter limit rod 504 can be suitable for force sensors of different specifications, meet the calibration needs of different sensors, and improve the overall adaptability of the device.

[0026] The classification component 7 includes a collection box 702, one side of which is connected to one side of the base 3 through a connecting piece, a flip plate 706 is rotatably connected inside the collection box 702 through a rotating shaft, a buffer plate 704 that can move relatively is arranged on the top of the flip plate 706, a buffer spring 705 is arranged between the flip plate 706 and the buffer plate 704, and both ends of the buffer spring 705 are respectively connected to one side of the buffer plate 704 and between the flip plate 706, a partition plate 708 for dividing the internal space is connected inside the collection box 702, both sides of the inner wall of the collection box 702 are connected to obliquely arranged guide plates 707, two sealing doors 703 are symmetrically arranged on one side of the collection box 702, a drive motor 701 is fixedly installed on one side of the collection box 702 through a mounting plate, one end of the rotating shaft extends to the outside of the collection box 702 and is connected to one end of the output shaft of the drive motor 701.

[0027] The implementation method is specifically as follows: by setting a classification component 7, when the force sensor is calibrated as qualified, the driving motor 701 drives the flip plate 706 to rotate clockwise, so that the flip plate 706 drives the buffer plate 704 to tilt to one side, and the force sensor falls on the inclined buffer plate 704, and after being shock-absorbing and buffered by the buffer spring 705, it falls into the collection box 702 and is separated by a separate space by the partition plate 708. When the sensor is calibrated as unqualified, the driving motor 701 rotates counterclockwise, so that the flip plate 706 and the buffer plate 704 tilt toward the other side, and the unqualified force sensor falls into the space on the other side. Through the cooperation of the buffer plate 704 and the buffer spring 705, the falling force sensor can be buffered by energy absorption, and with the automatic blanking of the clamping limit component 5, the calibrated force sensor can be automatically recovered, and the driving motor 701 drives the flipping of the flip plate 706 to automatically distinguish and screen qualified and unqualified force sensors, thereby reducing subsequent operation procedures.

[0028] Working principle: When in use, the staff starts the conveyor belt 6, which drives the placement plate 502 to move and periodically stops for a period of time. The staff places the force sensor in the positioning groove 503, and the transmission belt drives the force sensor to gradually move to the bottom of the pressure calibration plate 2 through the placement plate 502 and the positioning groove 503.

[0029] During this process, the placement plate 502 drives the moving slide bar 507 to move, so that the moving slide bar 507 drives the moving wheel 510 to gradually fit with the extrusion plate 501, so that the extrusion plate 501 generates pressure on the moving wheel 510, the extrusion wheel drives the moving wheel 510 to move, the moving wheel 510 drives the moving slide bar 507 and the sliding block 506 to move, the sliding block 506 drives the moving box 505 to move, and the moving box 505 drives the multiple adapter limit rods 504 to contact and fit the periphery of the force sensor, and During this process, the force sensor generates pressure on the adapter limit rod 504, causing the adapter limit rod 504 to move relatively. The adapter limit rod 504 drives the ratchet bar 518 to move backward. The movement of the ratchet bar 518 drives the limit single tooth 519 to move. Subsequently, the limit single tooth 519 is reset under the drive of the movable rod 521 and the third spring 520. The limit single tooth 519 limits the ratchet bar 518 to prevent the adapter limit rod 504 from returning to its original position, and cooperates with the second spring 513 to realize single-point support for the force sensor.

[0030] When calibrating different force sensors, the staff rotates the knob 904, which drives the adjustment screw 902 to rotate, and the adjustment screw 902 drives the screw seat 901 to move to one side, and the screw seat 901 drives the sliding block 506 to move on the moving slide rod 507, thereby changing the distance between the two moving boxes 505.

[0031] The calibrated sensor may be qualified or unqualified due to its own factors. When the force sensor is calibrated as qualified, the driving motor 701 drives the flip plate 706 to rotate clockwise, so that the flip plate 706 drives the buffer plate 704 to tilt to one side. When the force sensor is transported to the end, the clamping limit assembly 5 releases the limit on the force sensor, and the force sensor falls on the inclined buffer plate 704, and after being shock-absorbing and buffered by the buffer spring 705, it falls into one side of the collection box 702, and after being buffered by the guide plate 707, it falls into a separate space separated by the partition plate 708. When the sensor is calibrated as unqualified, the driving motor 701 rotates counterclockwise, so that the flip plate 706 and the buffer plate 704 tilt toward the other side, and the unqualified force sensor falls into the space on the other side.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A calibration device suitable for automobile sensors, comprising two symmetrically arranged bases (3), a conveyor belt (6) for conveying a force sensor is arranged between the two bases (3), characterized in that: The outer surface of the conveyor belt (6) is provided with a plurality of clamping and limiting components (5) and adjustment components (9), the end of the conveyor belt (6) is provided with a classification component (7), and a pressure calibration plate (2) for test calibration is provided directly above the conveyor belt (6); The clamping and limiting assembly (5) comprises a placement plate (502) connected to the surface of the conveyor belt (6), the top of the placement plate (502) is connected to symmetrically arranged fixed side plates (508), the fixed side plates (508) are provided with sliding holes, a movable slide rod (507) is slidably connected in the sliding holes, one end of the movable slide rod (507) is slidably connected to a sliding block (506), one end of the sliding block (506) is connected to a movable box (505), and one side of the movable box (505) is provided with a plurality of relatively movable adaptable limiting rods (504) for adapting and fitting the outer peripheral side of the force sensor.

2. A calibration device suitable for automobile sensors according to claim 1, characterized in that: One end of the movable slide bar (507) away from the sliding block (506) extends to the other side of the fixed side plate (508) and is connected to a movable wheel (510); the top of the base (3) is connected to an extrusion plate (501); the movable wheel (510) is fitted with the extrusion plate (501); the cross-sectional shape of the extrusion plate (501) is trapezoidal; a first spring (509) is sleeved on the outer surface of the movable slide bar (507); the two ends of the first spring (509) are respectively connected to the fixed side plate (508) and one side of the movable wheel (510); a positioning groove (503) is opened at the center of the top of the placement plate (502); the cross-sectional shape of the positioning groove (503) is circular.

3. The calibration device for automobile sensors according to claim 1, characterized in that: A plurality of mounting transverse plates (514) in a linear array are connected inside the moving box (505), a plurality of adapting limiting rods (504) are slidably connected to the mounting transverse plates (514), and an outer surface of the adapting limiting rod (504) located inside the moving box (505) is connected to a limiting bonding plate (512), one side of the limiting bonding plate (512) is bonded to one side of the inner wall of the moving box (505), and a second spring (513) is sleeved on the outer surface of the adapting limiting rod (504), and two ends of the second spring (513) are respectively connected to the mounting transverse plate (514) and one side of the limiting bonding plate (512).

4. A calibration device suitable for automobile sensors according to claim 3, characterized in that: The end of the adapting limit rod (504) away from the limit fitting plate (512) is connected to a ratchet bar (518), and the tops of multiple ratchet bars (518) located at the same horizontal position are meshed and connected to the same limit single tooth (519), and the top of the limit single tooth (519) is connected to two symmetrically arranged movable rods (521), and the surface of the movable rod (521) is slidably connected to a connecting plate (515), one side of the connecting plate (515) is connected to one side of the mounting cross plate (514), and the ends of the two movable rods (521) away from the limit single tooth (519) extend to the other side of the connecting plate (515) and are connected to the same linkage rod (517).

5. A calibration device suitable for automobile sensors according to claim 4, characterized in that: Both sides of the linkage rod (517) are connected to sliding rods (516), both sides of the moving box (505) are provided with a plurality of sliding grooves, the sliding rods (516) are slidably connected in the sliding grooves, the outer surface of the movable rod (521) is sleeved with a third spring (520), and both ends of the third spring (520) are respectively connected to one side of the connecting plate (515) and one side of the limiting single tooth (519).

6. The calibration device for automobile sensors according to claim 1, characterized in that: The adjustment assembly (9) comprises a screw seat (901), wherein the screw seat (901) is connected to the top of the sliding block (506), one side of the screw seat (901) is connected to the side of the moving box (505), one side of the screw seat (901) is threadedly connected to an adjustment screw (902), an outer surface of the moving slide rod (507) is connected to a mounting member (903), one end of the adjustment screw (902) is rotatably connected to the mounting member (903), and the adjustment screw (902) extends from one side of the screw seat (901) to the other side of the mounting member (903) and is connected to a knob (904).

7. The calibration device for automobile sensors according to claim 1, characterized in that: The classification component (7) comprises a collection box (702), one side of the collection box (702) being connected to one side of the base (3) via a connecting piece, a flip plate (706) being rotatably connected to the collection box (702) via a rotating shaft, a buffer plate (704) being arranged on the top of the flip plate (706) and being capable of relative movement, a buffer spring (705) being arranged between the flip plate (706) and the buffer plate (704), and two ends of the buffer spring (705) being respectively connected to one side of the buffer plate (704) and between the flip plate (706).

8. The calibration device for automobile sensors according to claim 7, characterized in that: The collection box (702) is internally connected to a partition plate (708) for dividing the internal space, both sides of the inner wall of the collection box (702) are connected to obliquely arranged guide plates (707), and one side of the collection box (702) is symmetrically provided with two sealing doors (703).

9. The calibration device for automobile sensors according to claim 7, characterized in that: A driving motor (701) is fixedly mounted on one side of the collection box (702) via a mounting plate, and one end of a rotating shaft extends to the outside of the collection box (702) and is connected to one end of an output shaft of the driving motor (701).

10. The calibration device for automobile sensors according to claim 1, characterized in that: The top of the base (3) is connected to a bracket (1), the bottom of the bracket (1) is connected to a movable cylinder (8), the output end of the movable cylinder (8) is connected to the top of the pressure calibration plate (2), one side of the pressure calibration plate (2) is connected to a data display device (4) via a connecting cable, one side of the data display device (4) is connected to one side of one of the bases (3), two transmission rollers (11) are rotatably connected between the two bases (3), the conveyor belt (6) is wound between the two transmission rollers (11), and a bearing plate (10) is connected between the two bases (3), the top of the bearing plate (10) is in contact with the surface of the conveyor belt (6).

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