Automobile part straightness detection device

Abstract

The invention belongs to the technical field of measuring equipment, and particularly relates to an automobile part straightness detection device which comprises a workbench, a conveying belt is arranged at the top end of the workbench, and a pair of limiting belts is arranged on the surface of the conveying belt; a mounting frame is arranged on one side of the workbench, and a bearing plate located over the conveying belt is arranged at the top end of the mounting frame. According to the automobile part straightness detection device, during detection, a front axle tie rod is driven to the bottom end of the detection plate through the conveying belt, and then the straightness of the front axle tie rod is detected in cooperation with the first pressure sensor; the pressure data are transmitted to an external computer, and the computer analyzes and calculates the curvature of the front axle tie rod; then the front axle tie rod is continuously detected along with conveying of the conveying belt; the whole detection process is completed on the conveying belt, so that the detection efficiency is greatly improved; detection of large-batch front axle tie rods is facilitated; intermittent braking of the conveying belt is needed during feeding and discharging of the front axle tie rod.

Description

Technical Field

[0001] The invention belongs to the technical field of measuring equipment, in particular to a straightness detection device for automobile parts. Background Art

[0002] Auto parts are the units that make up the whole auto parts processing and the products that serve the auto parts processing; traditional auto parts can be roughly divided into seven categories, namely engine, transmission system, steering system, braking system, driving system, body accessories and electronic appliances; existing auto parts need to be tested after production, such as smoothness test, straightness test, etc. Straightness testing is necessary for automotive parts; for example, automotive steering columns, front axle tie rods and other parts need to be tested for straightness after production; for front axle tie rods, level meters, rulers, optical instruments, yaw meters and other instruments can be used for testing; however, when using the above-mentioned testing instruments to test the straightness of the front axle tie rods, the front axle tie rods need to be placed in position before testing, which results in low testing efficiency and is not conducive to the testing of large quantities of front axle tie rods.

[0003] To this end, the present invention provides a device for detecting the straightness of automobile parts. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0005] The technical solution adopted by the present invention to solve the technical problem is: the straightness detection device of an automobile component of the present invention comprises a workbench, a conveyor belt is arranged on the top of the workbench, and a pair of limiting belts are arranged on the surface of the conveyor belt; A mounting frame is provided on one side of the workbench, a receiving plate located just above the conveyor belt is provided on the top of the mounting frame, a lifting hydraulic cylinder is provided on the top of the receiving plate, and a connecting piece is provided on the bottom end of the lifting hydraulic cylinder; an arc-shaped plate is provided on the bottom end of the connecting piece, a detection plate is provided on the bottom end of the arc-shaped plate, and a gap exists between the top end of the detection plate and the arc-shaped plate; a pair of guide rods are provided on the top end of the detection plate, the top end of the guide rods passes through the top of the arc-shaped plate, a buffer spring is provided on the top end of the guide rods, and a fixing frame installed on the top end of the arc-shaped plate is provided on the top end of the buffer spring; a first pressure sensor is provided on the top end of the fixing frame; a rubber block is provided between the pressure-bearing end of the first pressure sensor and the top end of the guide rod; A first through hole is provided at the top of the arc plate, and a first synchronization hole is provided at the top of the detection plate and below the first through hole; a first roller is inserted into the inside of the first through hole, and a fixing plate installed on the top of the arc plate is provided on the side of the first roller; a first motor is provided on the side of the fixing plate, and the output end of the first motor is connected to the side of the first roller; the first roller passes through the first synchronization hole.

[0006] Preferably, a plurality of receiving plates are provided at one end of the detection plate facing the feeding end of the conveyor belt; the receiving plates extend outwardly relative to the end of the detection plate.

[0007] Preferably, a circular groove is provided on the side of the first roller away from the first motor, a sealing cover is inserted at the notch of the circular groove, an exhaust pipe is provided on the side of the sealing cover, and the exhaust pipe is externally connected to an air pump; a connecting frame is provided between the sealing cover and the arc plate; a plurality of exhaust holes connected to the circular groove are evenly provided on the wheel surface of the first roller, and a suction cup is installed inside the exhaust hole.

[0008] Preferably, the suction opening of the suction cup is arranged in an arc shape.

[0009] Preferably, a blocking plate is inserted into the inside of the circular groove; a limiting frame is provided between the blocking plate and the sealing cover; the blocking plate blocks the connection between the circular groove located above the bottom end and the air extraction hole.

[0010] Preferably, the connecting member is a servo motor; the housing of the servo motor is installed at the output end of the lifting hydraulic cylinder; the output end of the servo motor is connected to the top of the arc plate; a first material receiving plate is provided at the top of the workbench and on one side of the arc plate, and a bracket is provided at the bottom end of the first material receiving plate; A second through hole is provided at the top of the arc plate, and a second synchronization hole is provided at the top of the detection plate and below the second through hole; a second roller is plugged into the inside of the second through hole, and a second motor is provided on one side of the second roller; a positioning frame is provided between the second motor and the arc plate, and the output end of the second motor is connected to the side of the second roller.

[0011] Preferably, a slide plate is provided at the top of the first material receiving plate, and a plurality of partitions are evenly arranged at the top of the slide plate; a receiving hydraulic cylinder is installed on the side of the bracket, and a connecting rod is provided between the output end of the receiving hydraulic cylinder and the bottom end of the slide plate.

[0012] Preferably, the surfaces of the partition and the slide plate are polished.

[0013] Preferably, a support frame is provided at the top of the workbench and on the side away from the arc plate, a pair of detection hydraulic cylinders are provided at the top of the support frame, and a connecting spring is provided at the output end of the detection hydraulic cylinder; a positioning block is provided at the bottom end of the connecting spring, and a prediction plate is provided at the bottom end of the positioning block, a linkage frame is provided between the pair of positioning blocks, a rubber plate is provided on the side of the linkage frame, and a second pressure sensor is provided on one side of the rubber plate; a receiving spring is provided between the top of the second pressure sensor and the top of the support frame.

[0014] Preferably, a pair of prediction plates are rotatably connected; a second material receiving plate is provided at the top of the workbench and on one side of the prediction plates.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention discloses a device for detecting the straightness of automobile parts. A detection plate is set up. During detection, the front axle tie rod is driven to the bottom end of the detection plate by a conveyor belt, and then the straightness of the front axle tie rod is detected in cooperation with a first pressure sensor. The pressure data is transmitted to an external computer, and the computer analyzes and calculates the curvature of the front axle tie rod. Then, the front axle tie rod is continuously detected as it is conveyed by the conveyor belt. The entire detection process is completed on the conveyor belt, which greatly improves the detection efficiency. This is beneficial to the detection of large quantities of front axle tie rods. The conveyor belt needs to be intermittently braked when loading and unloading the front axle tie rods.

[0016] 2. The straightness detection device for automobile parts described in the present invention is provided with a slide plate; when the bending of the front axle tie rod is detected, the conveyor belt is first controlled to stop running; then the servo motor is driven to move upward by the lifting hydraulic cylinder, and the servo motor drives the detection plate to move upward through the arc plate; because when the front axle tie rod enters the bottom end of the detection plate, the detection plate can cover the part below the center line of the front axle tie rod; therefore, the front axle tie rod can be synchronously driven to move upward, and then when it moves upward to a certain height, the detection plate is controlled by the servo motor to rotate ninety degrees, and then the front axle tie rod is controlled to move downward and fall into the top end of the first receiving plate; then the second roller is controlled to rotate by the second motor, and the second roller drives the front axle tie rod to move away from the bottom end of the detection plate, and then enter the top end of the first receiving plate, so as to realize the removal of the bent front axle tie rod; further improving the automation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 is a stereogram of the present invention; Figure 2 It is a schematic diagram of the structure on the curved plate of the present invention; Figure 3 It is a schematic diagram of the position of the detection plate of the present invention; Figure 4 It is a schematic diagram of the structure above the guide rod of the present invention; Figure 5 is a schematic diagram of a first roller of the present invention; Figure 6 is a schematic diagram of the first roller connection structure of the present invention; Figure 7 is a schematic diagram of a sealing cover of the present invention; Figure 8 is a schematic diagram of a prediction board of the present invention; Fig. 9 It is a schematic diagram of the connection structure of the prediction board of the present invention; Fig.10 It is a schematic diagram of the skateboard connection structure of the present invention.

[0019] In the figure: 1, workbench; 11, conveyor belt; 2, mounting frame; 21, receiving plate; 22, lifting hydraulic cylinder; 23, servo motor; 24, arc plate; 241, guide rod; 242, buffer spring; 243, fixing frame; 244, first pressure sensor; 25, detection plate; 251, guide plate; 26, first through hole; 27, second through hole; 3, first roller; 30, circular groove; 301, air extraction hole; 302, suction cup; 31, first motor; 32, fixing plate ; 4. Sealing cover; 41. Exhaust pipe; 42. Connecting frame; 43. Limiting frame; 44. Blocking plate; 5. First receiving plate; 51. Bracket; 52. Slide plate; 53. Receiving hydraulic cylinder; 54. Linking rod; 6. Second roller; 61. Second motor; 62. Positioning frame; 7. Support frame; 71. Detection hydraulic cylinder; 72. Positioning block; 73. Prediction plate; 74. Rubber plate; 75. Linking frame; 76. Second pressure sensor; 77. Receiving spring; 8. Second receiving plate. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0021] like Figures 1 to 10 As shown, an automobile parts straightness detection device according to an embodiment of the present invention comprises a workbench 1, a conveyor belt 11 is arranged on the top of the workbench 1, and a pair of limiting belts are arranged on the surface of the conveyor belt 11; A mounting frame 2 is provided on one side of the workbench 1, and a receiving plate 21 located just above the conveyor belt 11 is provided on the top of the mounting frame 2, and a lifting hydraulic cylinder 22 is provided on the top of the receiving plate 21, and a connecting piece is provided at the bottom end of the lifting hydraulic cylinder 22; an arc-shaped plate 24 is provided at the bottom end of the connecting piece, and a detection plate 25 is provided at the bottom end of the arc-shaped plate 24, and there is a gap between the top end of the detection plate 25 and the arc-shaped plate 24; a pair of guide rods 241 are provided at the top end of the detection plate 25, and the top end of the guide rods 241 passes through the top of the arc-shaped plate 24, and a buffer spring 242 is provided at the top end of the guide rods 241, and a fixing frame 243 installed on the top end of the arc-shaped plate 24 is provided at the top end of the buffer spring 242; a first pressure sensor 244 is provided at the top end of the fixing frame 243; a rubber block is provided between the pressure-bearing end of the first pressure sensor 244 and the top end of the guide rod 241; A first through hole 26 is provided at the top of the arc plate 24, and a first synchronization hole is provided at the top of the detection plate 25 and below the first through hole 26; a first roller 3 is inserted into the first through hole 26, and a fixing plate 32 installed at the top of the arc plate 24 is provided on the side of the first roller 3; a first motor 31 is provided on the side of the fixing plate 32, and an output end of the first motor 31 is connected to the side of the first roller 3; the first roller 3 passes through the first synchronization hole; At present, for the front axle tie rod of an automobile, instruments such as a level, a ruler, an optical instrument, and a yaw meter can be used for detection; however, when the straightness of the front axle tie rod of an automobile is detected by the above-mentioned detection instruments, the position of the front axle tie rod needs to be placed and then the detection is carried out, and the detection efficiency is low, which is not conducive to the detection of large quantities of front axle tie rods; to solve the above-mentioned problems, the embodiment of the present invention provides structures such as a conveyor belt 11 and a detection plate 25; the specific use process is as follows, when in use; the front axle tie rod to be detected is placed between a pair of limiting belts on the conveyor belt 11; the position of the front axle tie rod on the conveyor belt 11 is limited; then the conveyor belt 11 is controlled to rotate, and the conveyor belt 11 drives the front axle tie rod to move, and when passing through the detection plate 25, the end of the front axle tie rod is adapted to the end of the detection plate 25; that is, when the straightness of the front axle tie rod is good, the front axle tie rod can pass through the detection plate 25 smoothly, at this During the process, the first motor 31 drives the first roller 3 to rotate, and the first roller 3 drives the front axle tie rod entering the bottom end of the detection plate 25 to rotate; when the front axle tie rod is not bent, the rotation is stable; when the front axle tie rod is bent, the front axle tie rod will shake up and down during the rotation when passing through the detection plate 25; and then the detection plate 25 is driven to move upward, and the detection plate 25 squeezes the rubber block under the first pressure sensor 244 through the guide rod 241, so that the first pressure sensor 244 receives the pressure data; and transmits the pressure data to the external computer, and the computer analyzes and calculates the bending degree of the front axle tie rod; then, the front axle tie rod is transported by the conveyor belt 11 and continues to be tested; the entire testing process is completed on the conveyor belt 11, which greatly improves the testing efficiency; it is conducive to the testing of large quantities of front axle tie rods; the conveyor belt 11 needs to be intermittently braked when loading and unloading the front axle tie rod; It should be pointed out that the loading and unloading process of the front axle tie rod is carried out by a robot. In addition, the detection plate 25 is made of deformable plastic to prevent the detection plate 25 from being stuck by the bent front axle tie rod and hindering the transportation process.

[0022] A plurality of guide plates 251 are provided at one end of the detection plate 25 facing the feeding end of the conveyor belt 11; the guide plates 251 extend outwardly relative to the end of the detection plate 25; when the front axle tie rod is conveyed to the bottom end of the detection plate 25, it needs to pass through the end of the detection plate 25 first; when the front axle tie rod is bent, the bent end of the front axle tie rod is received by the guide plate 251 and enters the bottom of the detection plate 25; the subsequent detection is completed; to prevent the bent front axle tie rod from being blocked by the end of the detection plate 25 during the detection.

[0023] A circular groove 30 is provided on the side of the first roller 3 away from the first motor 31, and a sealing cover 4 is inserted at the notch of the circular groove 30. An exhaust pipe 41 is provided on the side of the sealing cover 4, and an air pump is externally connected to the exhaust pipe 41; a connecting frame 42 is provided between the sealing cover 4 and the arc plate 24; a plurality of exhaust holes 301 connected to the circular groove 30 are evenly provided on the wheel surface of the first roller 3, and a suction cup 302 is installed inside the exhaust hole 301; when the front axle tie rod at the bottom end of the detection plate 25 is driven to rotate by the first roller 3, the air pump externally connected to the exhaust pipe 41 is started, and the air pump exhausts the area between the sealing cover 4 and the circular groove 30, and the sealing cover 4 rotates relative to the circular groove 30; when the suction port of the suction cup 302 contacts the surface of the front axle tie rod, it is sealed; then a negative pressure is generated to make The suction cup 302 is adsorbed to the surface of the front axle tie rod; as the front axle tie rod rotates, the suction cup 302 is pulled off; the setting of the suction cup 302 can improve the effect of the first roller 3 on driving the front axle tie rod to rotate; it should be pointed out that when the first roller 3 rotates, the suction cup 302 will first contact the surface of the front axle tie rod and generate adsorption; so that when the first roller 3 rotates, the suction cup 302 can increase the rotational torque for the rotation of the front axle tie rod; in addition, during the rotation of the first roller 3, there is a gap between the suction cup 302; therefore, during the detection process, the front axle tie rod will move forward in the contact gap between the suction cup 302 and it, and the suction cup 302 has the ability of tensile deformation; therefore, during the detection process, the front axle tie rod will move forward while rotating; the detection remains smooth.

[0024] The suction opening of the suction cup 302 is provided with an arc shape, so as to improve the sealing effect when the suction cup 302 contacts the front axle tie rod.

[0025] A blocking plate 44 is inserted into the circular groove 30; a limit frame 43 is arranged between the blocking plate 44 and the sealing cover 4; the blocking plate 44 blocks the connection between the circular groove 30 located above the bottom end and the air extraction hole 301, so that the suction cup 302 will be evacuated only when it contacts the front axle tie rod, thereby ensuring the use effect.

[0026] The connecting member is specifically a servo motor 23; the housing of the servo motor 23 is installed at the output end of the lifting hydraulic cylinder 22; the output end of the servo motor 23 is connected to the top of the arc plate 24; a first receiving plate 5 is provided at the top of the workbench 1 and on one side of the arc plate 24, and a bracket 51 is provided at the bottom end of the first receiving plate 5; A second through hole 27 is formed at the top of the arc plate 24, and a second synchronization hole is formed at the top of the detection plate 25 and below the second through hole 27; a second roller 6 is inserted into the second through hole 27, and a second motor 61 is provided on one side of the second roller 6; a positioning frame 62 is provided between the second motor 61 and the arc plate 24, and an output end of the second motor 61 is connected to a side of the second roller 6; When the bending of the front axle tie rod is detected, the conveyor belt 11 is first controlled to stop running; then the servo motor 23 is driven to move upward by the lifting hydraulic cylinder 22, and the servo motor 23 drives the detection plate 25 to move upward through the arc plate 24; because when the front axle tie rod enters the bottom end of the detection plate 25, the detection plate 25 can cover the part below the center line of the front axle tie rod; therefore, the front axle tie rod can be synchronously driven to move upward, and then when it moves upward to a certain height, the servo motor 23 is used to control the detection plate 25 to rotate ninety degrees, and then the front axle tie rod is controlled to move downward and fall into the top of the first receiving plate 5; then the second motor 61 is used to control the second roller 6 to rotate, and the second roller 6 drives the front axle tie rod to move away from the bottom end of the detection plate 25, and then enter the top end of the first receiving plate 5, so as to realize the removal of the bent front axle tie rod, and further improve the automation effect.

[0027] A slide plate 52 is provided at the top of the first material receiving plate 5, and a plurality of partitions are evenly provided at the top of the slide plate 52; a receiving hydraulic cylinder 53 is installed on the side of the bracket 51, and a connecting rod 54 is provided between the output end of the receiving hydraulic cylinder 53 and the bottom end of the slide plate 52; the movement of the slide plate 52 can be controlled by the receiving hydraulic cylinder 53, and the slide plate 52 drives the partition to move, and the spacing between the partitions is greater than the diameter of the front axle tie rod; the front axle tie rods with different degrees of bending can be further distinguished by multiple partitions, so as to facilitate the subsequent trimming and screening operations.

[0028] The surfaces of the partition plate and the slide plate 52 are polished to prevent excessive friction between the front axle tie rod and the partition plate and the slide plate 52, which may cause scratches on the surface of the front axle tie rod.

[0029] A support frame 7 is provided at the top of the workbench 1 and on the side away from the arc plate 24. A pair of detection hydraulic cylinders 71 are provided at the top of the support frame 7. A connecting spring is provided at the output end of the detection hydraulic cylinder 71. A positioning block 72 is provided at the bottom end of the connecting spring. A prediction plate 73 is provided at the bottom end of the positioning block 72. A linkage frame 75 is provided between the pair of positioning blocks 72. A rubber plate 74 is provided on the side of the linkage frame 75. A second pressure sensor 76 is provided on one side of the rubber plate 74. A receiving spring is provided between the top of the second pressure sensor 76 and the top of the support frame 7. 77; when the bending degree of the front axle tie rod is too large during the detection, the prediction plate 73 will be squeezed to move when passing between a pair of prediction plates 73, and the prediction plate 73 drives the rubber plate 74 to squeeze the second pressure sensor 76 through the linkage frame 75. When the second pressure sensor 76 is compressed, it sends a signal to the external computer to improve the staff's current front axle tie rod bending too large and difficult to pass the detection plate 25; this is because the detection plate 25 has a limited size; therefore, the detectable range is limited; the staff performs corresponding processing; realizes pre-detection; is conducive to improving detection efficiency.

[0030] A pair of prediction plates 73 are rotatably connected to each other; a second receiving plate 8 is provided at the top of the workbench 1 and on one side of the prediction plate 73; when the second pressure sensor 76 is squeezed, the external computer controls the conveyor belt 11 to stop rotating; at the same time, the output of a pair of detection hydraulic cylinders 71 is controlled; the pair of prediction plates 73 move upward, and the pair of prediction plates 73 rotate relatively, so there will be no interference with the front axle tie rod; then the front axle tie rod that is bent too much is taken out by a robot to the second receiving plate 8 to complete the unloading operation.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A straightness detection device for automobile parts, characterized in that: It comprises a workbench (1), a conveyor belt (11) is arranged at the top of the workbench (1), and a pair of limiting belts are arranged on the surface of the conveyor belt (11); A mounting frame (2) is provided on one side of the workbench (1); a receiving plate (21) located directly above the conveyor belt (11) is provided at the top of the mounting frame (2); a lifting hydraulic cylinder (22) is provided at the top of the receiving plate (21); a connecting piece is provided at the bottom of the lifting hydraulic cylinder (22); an arc-shaped plate (24) is provided at the bottom of the connecting piece; a detection plate (25) is provided at the bottom of the arc-shaped plate (24); a gap exists between the top of the detection plate (25) and the arc-shaped plate (24); the detection plate A pair of guide rods (241) are arranged at the top of the arc plate (25), the top of the guide rods (241) penetrates to the top of the arc plate (24), the top of the guide rods (241) is arranged at the top of the guide rods (241), and the top of the buffer springs (242) is arranged at the top of a fixing frame (243) installed at the top of the arc plate (24); a first pressure sensor (244) is arranged at the top of the fixing frame (243); a rubber block is arranged between the pressure-receiving end of the first pressure sensor (244) and the top of the guide rods (241); A first through hole (26) is formed at the top of the arc plate (24), and a first synchronization hole is formed at the top of the detection plate (25) and below the first through hole (26); a first roller (3) is inserted into the first through hole (26), and a fixing plate (32) mounted on the top of the arc plate (24) is provided on the side of the first roller (3); a first motor (31) is provided on the side of the fixing plate (32), and an output end of the first motor (31) is connected to a side of the first roller (3); and the first roller (3) passes through the first synchronization hole.

2. The straightness detection device for automobile parts according to claim 1, characterized in that: A plurality of receiving plates (251) are provided at one end of the detection plate (25) facing the feeding end of the conveyor belt (11); the receiving plates (251) extend outwardly relative to the end of the detection plate (25).

3. The straightness detection device for automobile parts according to claim 1, characterized in that: A circular groove (30) is formed on a side of the first roller (3) away from the first motor (31); a sealing cover (4) is inserted into the notch of the circular groove (30); a suction pipe (41) is provided on the side of the sealing cover (4); and an air pump is externally connected to the suction pipe (41); a connecting frame (42) is provided between the sealing cover (4) and the arc plate (24); a plurality of suction holes (301) connected to the circular groove (30) are evenly formed on the wheel surface of the first roller (3); a suction cup (302) is installed inside the suction hole (301).

4. The straightness detection device for automobile parts according to claim 3, characterized in that: The suction opening of the suction cup (302) is arranged in an arc shape.

5. The straightness detection device for automobile parts according to claim 4, characterized in that: A blocking plate (44) is inserted into the interior of the circular groove (30); a limiting frame (43) is provided between the blocking plate (44) and the sealing cover (4); the blocking plate (44) blocks the connection between the circular groove (30) located above the bottom end and the air extraction hole (301).

6. The straightness detection device for automobile parts according to claim 1, characterized in that: The connecting member is specifically a servo motor (23); the housing portion of the servo motor (23) is mounted on the output end of the lifting hydraulic cylinder (22); the output end of the servo motor (23) is connected to the top end of the arc plate (24); a first material receiving plate (5) is provided at the top end of the workbench (1) and on one side of the arc plate (24); a bracket (51) is provided at the bottom end of the first material receiving plate (5); A second through hole (27) is provided at the top of the arc plate (24), and a second synchronization hole is provided at the top of the detection plate (25) and below the second through hole (27); a second roller (6) is inserted into the interior of the second through hole (27), and a second motor (61) is provided on one side of the second roller (6); a positioning frame (62) is provided between the second motor (61) and the arc plate (24), and an output end of the second motor (61) is connected to a side of the second roller (6).

7. The straightness detection device for automobile parts according to claim 6, characterized in that: A slide plate (52) is arranged at the top end of the first receiving plate (5), and a plurality of partition plates are evenly arranged at the top end of the slide plate (52); a receiving hydraulic cylinder (53) is installed on the side of the bracket (51), and a connecting rod (54) is arranged between the output end of the receiving hydraulic cylinder (53) and the bottom end of the slide plate (52).

8. The straightness detection device for automobile parts according to claim 7, characterized in that: The surfaces of the partition plate and the slide plate (52) are polished.

9. The straightness detection device for automobile parts according to claim 1, characterized in that: A support frame (7) is provided at the top of the workbench (1) and on a side away from the arc-shaped plate (24); a pair of detection hydraulic cylinders (71) are provided at the top of the support frame (7); and a connecting spring is provided at the output end of the detection hydraulic cylinder (71); a positioning block (72) is provided at the bottom end of the connecting spring; a prediction plate (73) is provided at the bottom end of the positioning block (72); a linkage frame (75) is provided between the pair of positioning blocks (72); a rubber plate (74) is provided on the side of the linkage frame (75); and a second pressure sensor (76) is provided on one side of the rubber plate (74); and a receiving spring (77) is provided between the top of the second pressure sensor (76) and the top of the support frame (7).

10. The straightness detection device for automobile parts according to claim 9, characterized in that: A pair of prediction plates (73) are rotatably connected to each other; a second material receiving plate (8) is provided at the top of the workbench (1) and on one side of the prediction plates (73).

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