Detection device for automobile seat headrest framework

Abstract

The invention relates to the technical field of automobile part processing, and discloses an automobile seat headrest framework detection device, which comprises a working table, a detection assembly for detecting framework welding quality is arranged on the top surface of the working table, a clamping assembly for clamping and positioning a framework is arranged on the top surface of the working table, and the clamping assembly is used for clamping and positioning the framework. The hydraulic cylinder drives the pressing plate to apply controllable pressure to a welding part, and the stable movement of the guide rod is combined, so that an actual stress scene can be accurately simulated, whether a welding point has cracks or is insufficient in strength can be quickly judged, the detection efficiency and accuracy are remarkably improved, errors caused by manual visual inspection are avoided, and the labor intensity is reduced. A vacuum pump is matched with an air suction head and a hose to form a negative-pressure dust collection system which can dynamically move along with a pressing plate, and dust generated by welding cracking is captured in time; the guide hopper and the material leakage box collect falling parts in a centralized mode, workshop pollution is avoided, health of operators is guaranteed, and the industrial environmental protection standard is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile parts processing, in particular to a detection device for a headrest framework of an automobile seat. BACKGROUND

[0002] The headrest of an automobile seat is an important part of the occupant safety system, and the strength, durability and dimensional accuracy of its framework structure directly affect the neck protection performance during a collision. With the increasing strictness of automobile safety regulations and standards of the main machine factory, the manufacturing quality of the headrest framework needs to be ensured to be compliant through full-process detection.

[0003] Through retrieval, CN222143980U discloses a detection jig for a headrest framework of an automobile seat, which comprises a base plate and a detection assembly. The base plate is provided with multiple detection assemblies. The detection assembly comprises a length limiting block, an angle detection block and a clamping groove detection mechanism.

[0004] However, the existing detection device still has the following problems: 1. When the framework is being made, a connecting rod needs to be welded for support. However, when welding in batches, the welding firmness may not be qualified. 2. The length of the framework after bending needs to be ensured to be the same in the same batch. The existing device is not easy to measure. 3. When detecting the welding quality of the framework, it is not easy to collect the flying dust, which endangers the health of the workers. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a detection device for a headrest framework of an automobile seat, which mainly solves the problems of unqualified welding firmness when welding in batches and the difficulty in collecting flying dust when detecting the welding quality of the framework.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: A detection device for a headrest framework of an automobile seat, comprising a workbench, the top surface of the workbench is provided with a detection assembly for detecting the welding quality of the framework, the top surface of the workbench is provided with a clamping assembly for clamping and positioning the framework, the detection assembly comprises a linkage frame, the bottom surface of the linkage frame is provided with a sighting assembly for assisting the movement of the linkage frame to the aiming position, one side of the workbench is provided with a dust removal assembly for collecting flying dust during detection.

[0007] As the further further of the application, the detection assembly further comprises two first sliding rails fixedly connected to the top surface of the workbench by bolts, the bottom surface of the linkage frame is fixedly connected with two sliding blocks by bolts, the linkage frame is slidably connected with the first sliding rails through the sliding blocks, the top surface of the linkage frame is provided with a hydraulic cylinder, the output shaft of the hydraulic cylinder penetrates the surface of the linkage frame and is fixedly connected with a pressing plate, and the top surface of the pressing plate is fixedly connected with guide rods in a symmetrical manner which are in sliding fit with the top surface of the linkage frame.

[0008] As the further further of the application, the detection assembly further comprises two first sliding rails fixedly connected to the top surface of the workbench by bolts, the bottom surface of the linkage frame is fixedly connected with two sliding blocks by bolts, the linkage frame is slidably connected with the first sliding rails through the sliding blocks, the top surface of the linkage frame is provided with a hydraulic cylinder, the output shaft of the hydraulic cylinder penetrates the surface of the linkage frame and is fixedly connected with a pressing plate, and the top surface of the pressing plate is fixedly connected with guide rods in a symmetrical manner which are in sliding fit with the top surface of the linkage frame.

[0009] As the further further of the application, the detection assembly further comprises two first sliding rails fixedly connected to the top surface of the workbench by bolts, the bottom surface of the linkage frame is fixedly connected with two sliding blocks by bolts, the linkage frame is slidably connected with the first sliding rails through the sliding blocks, the top surface of the linkage frame is provided with a hydraulic cylinder, the output shaft of the hydraulic cylinder penetrates the surface of the linkage frame and is fixedly connected with a pressing plate, and the top surface of the pressing plate is fixedly connected with guide rods in a symmetrical manner which are in sliding fit with the top surface of the linkage frame.

[0010] As the further further of the application, the detection assembly further comprises two first sliding rails fixedly connected to the top surface of the workbench by bolts, the bottom surface of the linkage frame is fixedly connected with two sliding blocks by bolts, the linkage frame is slidably connected with the first sliding rails through the sliding blocks, the top surface of the linkage frame is provided with a hydraulic cylinder, the output shaft of the hydraulic cylinder penetrates the surface of the linkage frame and is fixedly connected with a pressing plate, and the top surface of the pressing plate is fixedly connected with guide rods in a symmetrical manner which are in sliding fit with the top surface of the linkage frame.

[0011] As the further further of the application, the detection assembly further comprises two first sliding rails fixedly connected to the top surface of the workbench by bolts, the bottom surface of the linkage frame is fixedly connected with two sliding blocks by bolts, the linkage frame is slidably connected with the first sliding rails through the sliding blocks, the top surface of the linkage frame is provided with a hydraulic cylinder, the output shaft of the hydraulic cylinder penetrates the surface of the linkage frame and is fixedly connected with a pressing plate, and the top surface of the pressing plate is fixedly connected with guide rods in a symmetrical manner which are in sliding fit with the top surface of the linkage frame.

[0012] As the further of the present application, the dust removal assembly comprises a dust collecting box arranged on one side of the workbench, a dust collecting pocket is arranged in the dust collecting box, a vacuum pump is arranged on one side of the dust collecting box, a suction end of the vacuum pump is inserted into the dust collecting box through a connecting pipe, two hoses are symmetrically arranged on the top surface of the dust collecting box, and a suction head is fixedly connected to the end of the hose away from the dust collecting box.

[0013] As the further of the present application, the dust removal assembly comprises a dust collecting box arranged on one side of the workbench, a dust collecting pocket is arranged in the dust collecting box, a vacuum pump is arranged on one side of the dust collecting box, a suction end of the vacuum pump is inserted into the dust collecting box through a connecting pipe, two hoses are symmetrically arranged on the top surface of the dust collecting box, and a suction head is fixedly connected to the end of the hose away from the dust collecting box.

[0014] Compared with the prior art, the present application provides a detection device for an automobile seat headrest framework, which has the following advantages: 1. The present application can accurately simulate the actual stress scenario by driving the pressing plate to apply controllable pressure to the welding position through the hydraulic cylinder and stable movement of the guide rod, quickly judge whether there is a crack or insufficient strength at the welding point, significantly improve the detection efficiency and accuracy, and avoid the error of manual visual inspection.

[0015] 2. The present application adopts a bidirectional synchronous clamping mechanism, which is driven by a motor and a gear and tooth plate linkage to realize synchronous centering movement of two clamping plates, is suitable for fixing frameworks of different sizes, realizes automatic clamping process, is stable in positioning, effectively prevents displacement of the framework during detection, and ensures the reliability of detection data.

[0016] 3. The present application can quickly measure the length of the framework while clamping by arranging a slidable extrusion rod and a ruler pointer mechanism in the clamping assembly, lock the reading through a screw rod, realize consistency control of production batches, save the additional measurement step, and improve the production efficiency.

[0017] 4. The present application adjusts the angle of the laser aiming lamp through the damping shaft, projects the light beam in real time to indicate the alignment position of the pressing plate and the welding rod, solves the problem of time-consuming and laborious manual adjustment, is especially suitable for high-precision detection scenarios, greatly reduces the operation difficulty and misalignment risk.

[0018] 5. The present application forms a negative pressure dust collection system through the vacuum pump, the suction head and the hose, can dynamically follow the movement of the pressing plate, timely captures the dust generated by the welding cracking, and avoids workshop pollution, protects the health of workers and meets the industrial environmental protection standards. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The present application provides a detection device for an automobile seat headrest framework, which has the following advantages: Figure 2This is a schematic diagram of the detection component and dust removal component of a detection device for an automotive seat headrest frame proposed in this invention; Figure 3 This is a schematic diagram of the clamping component structure of a detection device for an automotive seat headrest frame proposed in this invention; Figure 4 This is a schematic diagram of the aiming component structure of a detection device for an automotive seat headrest frame proposed in this invention; Figure 5 This invention proposes a detection device for the headrest frame of an automobile seat. Figure 1 A magnified structural diagram of part A; Figure 6 This invention proposes a detection device for the headrest frame of an automobile seat. Figure 3 A magnified structural diagram of part B.

[0020] 1. Workbench; 2. Detection Components; 21. Linkage Frame; 22. Hydraulic Cylinder; 23. Pressure Plate; 24. Guide Rod; 25. First Slide Rail; 3. Clamping Components; 31. Clamping Plate; 32. Second Guide Rail; 33. Motor; 34. Lead Screw; 35. Extrusion Rod; 36. Limit Rod; 37. Pointer; 38. Screw; 39. Ruler Plate; 310. Gear Plate; 311. Gear; 4. Aiming Components; 41. Laser Aiming Light; 5. Dust Removal Components; 51. Dust Collection Box; 52. Vacuum Pump; 53. Hose; 54. Limiting Hoop; 55. Suction Head; 56. Guide Hopper; 57. Leakage Box. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0022] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0023] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be "above", "over" and "on" the second feature, which can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature can be "under", "below" and "under" the second feature, which can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0024] Please refer to Figures 1-6 As shown in the figure, a detection device for an automobile seat headrest framework, comprising a workbench 1, the top surface of the workbench 1 is provided with a detection assembly 2 for detecting the welding quality of the framework, the top surface of the workbench 1 is provided with a clamping assembly 3 for clamping and positioning the framework, the detection assembly 2 comprises a linkage frame 21, the bottom surface of the linkage frame 21 is provided with a sighting assembly 4 for assisting the linkage frame 21 to move to a target position, one side of the workbench 1 is provided with a dust removal assembly 5 for collecting flying dust during detection.

[0025] In order to solve the technical problem that it is not easy to detect the welding quality, the detection assembly 2 further comprises two first sliding rails 25 fixedly connected on the top surface of the workbench 1 through bolts, the bottom surface of the linkage frame 21 is fixedly connected with two sliding blocks through bolts, the linkage frame 21 is slidably connected with the first sliding rails 25 through the sliding blocks, the top surface of the linkage frame 21 is provided with a hydraulic cylinder 22, the output shaft of the hydraulic cylinder 22 penetrates the surface of the linkage frame 21 and is fixedly connected with a pressing plate 23, the top surface of the pressing plate 23 is fixedly connected with guide rods 24 in a symmetrical manner, which are in sliding fit with the top surface of the linkage frame 21, when it is necessary to detect the welding quality, the welded framework is placed on the top surface of the workbench 1, then the linkage frame 21 is moved, so that the pressing plate 23 is coaxial with the connected rod, then the hydraulic cylinder 22 is connected with an external power source and started, the pressing plate 23 will move towards the connected rod, and the guide rods 24 will slide downward in the linkage frame 21, the pressure of the hydraulic cylinder 22 is set according to the support force of different headrests, then the connected rod is extruded by the pressing plate 23, whether the welded part will appear cracks under the pressure is tested, so as to realize detection of the firmness of welding.

[0026] It should be noted that the hydraulic cylinder used in the present application is an execution element in the hydraulic system, which realizes the telescopic function by cooperating with the hydraulic system, and can be set according to actual needs by those skilled in the art, which will not be described here.

[0027] In order to solve the technical problem that the skeleton is not easy to position, the clamping assembly 3 comprises two second guide rails 32 fixedly connected on the top surface of the workbench 1 through bolts, two clamping plates 31 are symmetrically arranged above the workbench 1, the clamping plates 31 are vertically arranged with the second guide rails 32, two sliding blocks are arranged on the bottom surface of each clamping plate 31 and are in sliding fit with the two second guide rails respectively, the clamping plate 31 is in sliding connection with the second guide rail 32 through the sliding block, a motor 33 is installed on the side surface of the workbench 1, the output shaft of the motor 33 is fixedly connected with a lead screw 34 through a shaft coupling, the lead screw 34 is in threaded connection with one of the clamping plates 31, a synchronous mechanism for driving the two clamping plates 31 to move close to or away from each other is arranged above the workbench 1, the synchronous mechanism comprises a limiting groove opened in the top surface of the workbench 1, a gear 311 is arranged in the limiting groove, the gear 311 is in rotary connection with the workbench 1 through a bearing, two toothed plates 310 are symmetrically engaged with the surface of the gear 311, the opposite ends of the two toothed plates 310 are fixedly connected with the two clamping plates 31 respectively, a measuring mechanism is arranged on the surface of the clamping plate 31, when the skeleton is placed, in order to avoid that the skeleton moves due to extrusion during detection, the motor 33 is connected with an external power supply and then started, one of the clamping plates 31 moves close to the skeleton due to the rotation of the lead screw 34, when one of the clamping plates 31 moves, one of the toothed plates 310 is driven to move, the other toothed plate 310 is driven to move towards the direction of the skeleton due to the rotation of the gear 311, and the two clamping plates 31 are used to realize clamping positioning.

[0028] It should be noted that the motor 33 is prior art, and those skilled in the art can set it according to actual needs, which will not be described here.

[0029] In order to solve the technical problem that the length of the skeleton after bending is not easy to measure, the measuring mechanism comprises a ruler 39 fixedly connected to the surface of the clamping plate 31, one side of each clamping plate 31 is fixedly connected with a limiting rod 36, a through hole is formed in the position corresponding to the limiting rod 36 of each clamping plate 31, and the limiting rod 36 is slidably connected with the corresponding clamping plate 31 through the through hole, a positioning groove is formed in the inside of each clamping plate 31, an extrusion rod 35 is arranged between the two clamping plates 31, the two ends of the extrusion rod 35 pass through the two clamping plates 31 through the positioning groove and are slidably connected with the clamping plates 31, the surface of one of the clamping plates 31 is slidably connected with a pointer 37, one end of the extrusion rod 35 is fixedly connected with the pointer 37, the surface of the pointer 37 is threadedly connected with a screw rod 38, and one end of the screw rod 38 is threadedly connected with the clamping plate 31, in order to ensure that the lengths of the skeletons in the same batch are the same, when the skeleton is placed between the two clamping plates 31, the one end of the skeleton is first made to abut against the limiting rod 36, then force is applied to the pointer 37, the pointer 37 is moved on the surface of the clamping plate 31 in the direction of the skeleton, until the extrusion rod 35 abuts against the other end of the skeleton, the length of the skeleton can be determined by observing the position of the pointer 37 corresponding to the ruler 39, and when the skeleton is qualified, the screw rod 38 is rotated to abut against the clamping plate 31, and the extrusion rod 35 is positioned through the frictional force, when the two clamping plates 31 move, the extrusion rod 35 slides in the inside of the sliding groove, and the limiting rod 36 slides in the inside of the through hole, so that the clamping of the clamping plate 31 is not affected.

[0030] In order to solve the technical problem that it is not easy to aim, the aiming assembly 4 comprises two laser aiming lamps 41 symmetrically arranged on the bottom surface of the linkage frame 21, the bottom surface of the linkage frame 21 is fixedly connected with two supports in a symmetrical manner, the supports are rotationally connected with the laser aiming lamps 41 through damping shafts, in order to facilitate the alignment of the pressing plate 23 with the connecting rod, the laser aiming lamps 41 are first connected with an external power supply and then started, the laser aiming lamps 41 emit light beams in one direction, then the laser aiming lamps 41 are rotated in the inside of the supports through the damping shafts, so that the light beams are directed below the pressing plate 23, when the linkage frame 21 moves, the position where the linkage frame 21 stops can be determined through the position of the penetrating light beam, thereby facilitating the aiming of the pressing plate 23.

[0031] It should be noted that the laser aiming lamp 41 comprises a laser diode, an optical lens group, a control circuit and the like, which can be arranged according to actual needs by those skilled in the art, and will not be described here.

[0032] In order to solve the technical problem of dust collection during welding detection, the dust removal assembly 5 comprises a dust collection box 51 arranged on one side of the workbench 1, a dust collection pocket is arranged in the dust collection box 51, a vacuum pump 52 is arranged on one side of the dust collection box 51, the suction end of the vacuum pump 52 is inserted into the dust collection box 51 through a connecting pipe, two hoses 53 are symmetrically arranged on the top surface of the dust collection box 51, the end of the hose 53 away from the dust collection box 51 is fixedly connected with a suction head 55, the hose 53 is connected with the guide rod 24 through a limiting hoop 54, and a material receiving mechanism is arranged below the workbench 1. The material receiving mechanism comprises a through groove arranged on the surface of the workbench 1, the guide hopper 56 is fixedly connected to the position of the through groove on the bottom surface of the workbench 1, and the leakage box 57 is arranged below the guide hopper 56. In order to avoid the flying of dust caused by the cracking of the welding part during extrusion, the vacuum pump 52 is connected with an external power source and then started, the suction head 55 can suck gas into the inside of the hose 53, when the guide rod 24 descends, the suction head 55 can be driven to descend through the hose 53 due to the limiting hoop 54, so that the suction head 55 is closer to the welding position, and when dust appears, the dust can be sucked into the inside of the dust collection box 51, so that the dust does not harm the health of the operator. The connecting rod that falls off can enter the inside of the leakage box 57 through the guide hopper 56 and can be centrally treated.

[0033] It should be noted that the vacuum pump 52 is a prior art, and those skilled in the art can set it according to actual needs, which will not be repeated here.

[0034] The application is used in the following steps: S1: when placing the framework, in order to avoid the movement of the framework during detection due to extrusion, the motor 33 is connected with an external power source and then started, one of the clamping plates 31 can move the framework due to the rotation of the lead screw 34, when one of the clamping plates 31 moves, one of the toothed plates 310 can move, and the other toothed plate 310 can drive the other clamping plate 31 to move towards the framework due to the rotation of the gear 311, so that the two clamping plates 31 can realize fixed clamping positioning; S2: when the welding quality needs to be detected, the framework after welding is placed on the top surface of the workbench 1, then the linkage frame 21 is moved, the pressing plate 23 is coaxial with the connecting rod, then the hydraulic cylinder 22 is connected with an external power source and then started, the pressing plate 23 can move towards the connecting rod, the guide rod 24 can slide downwards in the linkage frame 21, the pressure of the hydraulic cylinder 22 is set according to the support force of different headrests, then the connecting rod is extruded through the pressing plate 23, whether the welding part appears cracks under the pressure is tested, so that the firmness of welding is detected; S3: In order to facilitate the alignment of the pressing plate 23 to the connecting rod, the laser aiming lamp 41 is connected to an external power source and then started, the laser aiming lamp 41 emits a light beam in a direction, and then the laser aiming lamp 41 is rotated inside the support through the damping shaft, and the light beam is directed to the lower side of the pressing plate 23, when the linkage frame 21 moves, the position of the linkage frame 21 can be determined by the position of the light beam, thereby facilitating the alignment of the pressing plate 23; S4: In order to ensure that the skeletons of the same batch have the same length, when the skeleton is placed between the two clamping plates 31, first make one end of the skeleton and the limiting rod 36 mutually abut, then apply force to the pointer 37, and make the pointer 37 move on the surface of the clamping plate 31 to the direction of the skeleton, until the pressing rod 35 and the other end of the skeleton abut each other, the length of the skeleton can be determined by observing the position of the pointer 37 corresponding to the scale plate 39, if the skeleton is qualified, rotate the screw rod 38 to make it abut with the clamping plate 31, and position the pressing rod 35 through friction, when the two clamping plates 31 move, the limiting rod 36 will slide in the through hole, and will not affect the clamping of the clamping plate 31; S5: In order to avoid the dust flying caused by the cracking of the welding part during extrusion, the vacuum pump 52 is connected to an external power source and then started, the suction head 55 will suck gas into the inside of the hose 53, when the guide rod 24 descends, the limiting hoop 54 will drive the suction head 55 to descend through the hose 53, so that the suction head 55 is closer to the welding part, when the dust appears, it will be sucked into the inside of the dust collection box 51, thereby avoiding the dust harming the health of the workers, and the falling connecting rod will enter the inside of the leakage box 57 through the guide hopper 56, and can be concentratedly treated.

[0035] The technical features of the above embodiments can be combined in any way, in order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0036] The above embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A detection device for a headrest framework of an automobile seat, comprising a worktable (1), characterized in that: The top surface of the workbench (1) is provided with a detection assembly (2) for detecting the welding quality of the framework, the top surface of the workbench (1) is provided with a clamping assembly (3) for clamping and positioning the framework, the detection assembly (2) comprises a linkage frame (21), the bottom surface of the linkage frame (21) is provided with a sighting assembly (4) for assisting the linkage frame (21) to move to the indicating position, one side of the workbench (1) is provided with a dust removal assembly (5) for collecting flying dust during detection.

2. The detection device of a headrest framework of an automobile seat according to claim 1, characterized in that: The detection assembly (2) further comprises two first sliding rails (25) fixedly connected to the top surface of the workbench (1) by bolts, the bottom surface of the linkage frame (21) is fixedly connected with two sliding blocks by bolts, the linkage frame (21) is slidably connected with the first sliding rails (25) through the sliding blocks, the top surface of the linkage frame (21) is provided with a hydraulic cylinder (22), the output shaft of the hydraulic cylinder (22) penetrates the surface of the linkage frame (21) and is fixedly connected with a pressing plate (23), the top surface of the pressing plate (23) is fixedly connected with guide rods (24) in sliding fit with the top surface of the linkage frame (21).

3. The detection device of a headrest framework of an automobile seat according to claim 1, characterized in that: The clamping assembly (3) comprises two second guide rails (32) fixedly connected to the top surface of the workbench (1) by bolts, two clamping plates (31) are symmetrically arranged above the workbench (1), the bottom surface of each clamping plate (31) is provided with two sliding blocks in sliding fit with the two second guide rails (32) respectively, the clamping plate (31) is slidably connected with the second guide rail (32) through the sliding block, a motor (33) is installed on the side surface of the workbench (1), the output shaft of the motor (33) is fixedly connected with a lead screw (34) through a coupling, the lead screw (34) is threadedly connected with one of the clamping plates (31), a synchronous mechanism is arranged above the workbench (1) for driving the two clamping plates (31) to move close to or away from each other.

4. The detection device of a headrest framework of an automobile seat according to claim 3, characterized in that: The synchronous mechanism comprises a limiting groove opened in the top surface of the workbench (1), a gear (311) is arranged in the limiting groove, the gear (311) is rotatably connected with the workbench (1) through a bearing, two toothed plates (310) are symmetrically engaged with the surface of the gear (311), the opposite ends of the two toothed plates (310) are fixedly connected with the two clamping plates (31) respectively, and a measuring mechanism is arranged on the surface of the clamping plate (31).

5. The detection device of a headrest framework of an automobile seat according to claim 4, characterized in that: Said measuring mechanism includes a ruler (39) fixedly connected to the surface of the clamping plate (31), one side of each clamping plate (31) is fixedly connected with a limiting rod (36), each clamping plate (31) is provided with a through hole at a position corresponding to the limiting rod (36), and the limiting rod (36) is slidably connected with the corresponding clamping plate (31) through the through hole, a positioning groove is formed in the interior of each clamping plate (31), an extrusion rod (35) is arranged between the two clamping plates (31), the two ends of the extrusion rod (35) penetrate through the two clamping plates (31) through the positioning grooves and are slidably connected with the clamping plates (31), the surface of one of the clamping plates (31) is slidably connected with a pointer (37), one end of the extrusion rod (35) is fixedly connected with the pointer (37), the surface of the pointer (37) is threadedly connected with a screw rod (38), and one end of the screw rod (38) is threadedly connected with the clamping plate (31).

6. The detection device of a headrest framework of an automobile seat according to claim 2, characterized in that: The aiming assembly (4) comprises two laser aiming lamps (41) symmetrically arranged on the bottom surface of the linkage frame (21), and the bottom surface of the linkage frame (21) is fixedly connected with two brackets in a symmetrical manner, and the brackets are rotatably connected with the laser aiming lamps (41) through damping shafts.

7. The detection device of a headrest framework of an automobile seat according to claim 2, characterized in that: The dust removal assembly (5) comprises a dust collecting box (51) arranged on one side of the workbench (1), a dust collecting pocket is arranged in the dust collecting box (51), a vacuum pump (52) is mounted on one side of the dust collecting box (51), the suction end of the vacuum pump (52) is inserted into the dust collecting box (51) through a connecting pipe, two hoses (53) are symmetrically arranged on the top surface of the dust collecting box (51), a suction head (55) is fixedly connected to the end of each hose (53) away from the dust collecting box (51), and a material receiving mechanism is arranged below the workbench (1).

8. The detection device of a headrest framework of an automobile seat according to claim 7, characterized in that: The material receiving mechanism comprises a through groove formed in the surface of the workbench (1), a guide hopper (56) is fixedly connected to the bottom surface of the workbench (1) at the position of the through groove, and a material leakage box (57) is arranged below the guide hopper (56).

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