Automobile wire thread detection equipment

Abstract

The invention provides automobile wire thread detection equipment, and relates to the technical field of automatic detection of automobile parts. The equipment comprises a detection case and a detection platform in the detection case. The detection platform is provided with a test pedestal, a mounting rack and a clamping seat. A test motor capable of moving in the vertical direction is arranged on the mounting frame, and the output end of the test motor is slidably connected with a detection rod. The clamping base is provided with a clamping structure used for clamping a workpiece. A conveying platform and a pushing structure are integrated in the detection platform; the conveying platform is used for driving the clamping seat to enter a to-be-detected area along a first direction; the pushing structure is used for driving the clamping base to move out of the to-be-detected area in the second direction perpendicular to the first direction. Through cooperation of the position adjusting structure, linkage conveying and vertical sorting, efficient and automatic pass-stop detection of the automobile wire harness terminal threaded holes and automatic sorting of unqualified products are achieved, and the detection precision and the operation efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of automotive thread testing equipment, and more specifically, to an automotive thread testing device. Background Technology

[0002] As the "nervous system" of a car, automotive wiring harnesses typically have threaded holes on their terminals for electrical connections. The machining quality of these threaded holes directly affects the reliability and safety of the connection; therefore, thread clearance testing before assembly is crucial.

[0003] Traditional inspection methods primarily rely on manual operation using go / no-go gauges, which suffers from drawbacks such as high labor intensity, low efficiency, results influenced by personnel experience and condition, and difficulty in data quantification. With the development of automation, automated equipment using robotic arms to move or fix inspection stations has emerged. However, to achieve precise alignment, multi-axis robots or complex orientation adjustment platforms are often required, leading to high costs, complex structures, and difficult maintenance. For the rapid inspection of small and medium-sized parts such as automotive wiring harnesses, existing solutions are prone to cumulative errors during positioning, and the lack of multi-dimensional constraints on the workpiece during inspection may result in inspection failure or decreased accuracy due to even minor workpiece displacement. Summary of the Invention

[0004] The purpose of this invention is to provide an automotive thread inspection device that addresses the shortcomings of existing technologies and solves the problems mentioned in the background section.

[0005] The technical solution of this invention is implemented as follows: The invention provides an automotive thread testing device, including a testing housing and a testing platform installed inside the testing housing; The testing platform is equipped with a test base and a mounting frame, and the mounting frame is equipped with a test motor that is perpendicular to the mounting frame. A detection rod is slidably mounted on the output end of the test motor; The mounting bracket is equipped with an adjustment structure that is connected to the test motor drive, which is used to drive the test motor to reciprocate in the vertical direction; The test base is equipped with a clamping seat, and the clamping seat is equipped with a clamping structure for holding the workpiece to be tested; The testing platform is equipped with a conveyor platform that drives the clamping base to enter the area to be tested; The testing platform is equipped with a push structure that drives the clamping seat to move in and out of the testing area; the pushing direction of the push structure is perpendicular to the conveying direction of the conveying platform.

[0006] In some technical solutions of the present invention, the positioning structure includes a fixed frame mounted on a mounting bracket, the fixed frame being perpendicular to the mounting bracket, a linear drive module slidably connected to the body of the test motor being provided on the side wall of the fixed frame, and a displacement seat connected to the test motor being provided on the sliding end of the linear drive module.

[0007] In some technical solutions of the present invention, the clamping structure includes a plurality of positioning posts mounted on the clamping base, the plurality of positioning posts forming a rectangular assembly area after being surrounded, two guide rods passing through the clamping base, and an mounting base installed between the two guide rods, wherein the two positioning posts are mounted on the mounting base, and two limiting springs respectively connected to the guide rods are provided in the clamping base.

[0008] In some technical solutions of the present invention, the conveying platform includes a conveyor belt disposed on the test base along the extension direction of the mounting frame, two transmission rollers are rotatably disposed inside the test base, the conveyor belt is wound around the wheel surface of the two transmission rollers and connected end to end, the number of clamping seats is several, the several clamping seats are arranged around the outer side wall of the conveyor belt, and the mounting frame is provided with a drive structure for driving the conveyor belt to reciprocate.

[0009] In some technical solutions of the present invention, the driving structure includes a guide seat mounted vertically on the mounting frame, a displacement rod passing through the guide seat, a return spring sleeved on the displacement rod and connected thereto, a guide groove opened on the test base, a guide block slidably disposed in the guide groove, a transmission rod hinged to the outer wall of the guide block, the transmission rod being hinged to the displacement rod, and a connecting structure detachably connected to the outer wall of the conveyor belt on the side wall of the guide block; in the initial state, the transmission rod abuts against the outer wall of the conveyor belt; when the adjusting structure pushes the clamping seat to move downward in the vertical direction, the clamping seat pushes the guide block to slide in the guide groove through the displacement rod and the transmission rod, and the connecting structure located on the transmission rod connects with the conveyor belt, pulling the conveyor belt to make a circular motion, thereby pushing the clamping seat to the area to be tested.

[0010] In some technical solutions of the present invention, the connecting structure includes a connecting seat, which is disposed on the side wall opposite to the guide block and the conveyor belt. A through groove is provided on the side wall of the connecting seat, and an inlet and outlet communicating with the through groove are provided on the outer side wall of the connecting seat. An installation rod is inserted into the inlet and outlet. A limit block is installed at the end of the installation rod placed in the through groove. The installation rod is rotatably disposed in the inlet and outlet. A torsion spring structure connected to the rotation shaft of the installation rod is provided in the inlet and outlet. A push rod is provided on the transmission rod and abuts against the installation rod. The end of the transmission rod connected to the guide block is slidably disposed in the guide block. When the transmission rod pushes and slides in the guide groove, the push rod pushes the installation rod to deflect in the inlet and outlet under the push of the transmission rod. After that, the limit block is partially embedded in the conveyor belt. Then, the guide block pulls the conveyor belt to make a circular motion, thereby pushing the clamping seat to the area to be tested.

[0011] In some technical solutions of the present invention, the pushing structure includes a servo push rod structure mounted on the test base, and the displacement end of the servo push rod structure is provided with a connecting component that is detachably connected to the clamping base.

[0012] In some technical solutions of the present invention, the connecting component includes a retainer mounted on the displacement end of the servo push rod structure, a connecting post on the side wall of the retainer opposite to the clamping seat, a countersunk hole matching the connecting post on the side wall of the mounting seat, and an electromagnetic lock magnetically connected to the mounting seat on the connecting post.

[0013] In some technical solutions of the present invention, the outer wall of the mounting base is provided with a negative pressure suction cup structure for the workpiece to be tested.

[0014] In some technical solutions of the present invention, an electric push rod is provided on the displacement end of the servo push rod structure, and a top plate is provided on the extension end of the electric push rod to abut against the workpiece to be tested.

[0015] Compared to existing technologies, this invention has at least the following advantages or beneficial effects: By integrating positioning, conveying, detection, and sorting functions into one unit and utilizing mechanical linkage to achieve synchronized actions, the detection cycle time and overall efficiency are significantly improved. The vertical positioning and horizontal conveying architecture, combined with flexible clamping and optional adsorption fixation, provides multi-dimensional constraints for the workpiece, effectively reducing positioning errors and micro-movements during the detection process, ensuring detection accuracy. An independent pushing structure can automatically remove defective products from the main line, facilitating subsequent processing and achieving an automated closed loop for detection and sorting. When the positioning structure is activated, it drives the test motor to move upwards in the vertical direction (Z-axis direction), aligning the threaded hole on the workpiece with the axis of the detection rod. Subsequently, the test motor starts, driving the detection rod to rotate downwards and insert into the threaded hole of the workpiece for pass / fail detection. After detection, the positioning structure drives the detection motor to reset, and the conveying platform then sends out the detected workpiece and brings in the next workpiece to be inspected, starting a new cycle. If the workpiece to be inspected has a problem, the pushing structure starts at the same time as the adjustment structure drives the detection motor to reset. This forces the workpiece located on the clamping seat and on it to move in a direction perpendicular to the conveying direction of the conveying platform (e.g., the Y-axis direction), so that it moves into the detection platform for secondary manual inspection. Attached Figure Description

[0016] Figure 1 This is a side view of the structure of the present invention.

[0017] Figure 2 This is a top view of the structure of the present invention.

[0018] Figure 3 In this invention Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0019] Figure 4 This is a schematic diagram of the installation structure of the drive mechanism of the present invention.

[0020] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point C.

[0021] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0022] Figure 7 for Figure 1 A partially enlarged schematic diagram of the push structure.

[0023] Figure 8 for Figure 7 A magnified schematic diagram of the structure at point D.

[0024] Reference numerals: 1-Detection chassis, 2-Detection platform, 3-Test base, 4-Mounting frame, 5-Test motor, 6-Detection rod, 7-Adjustment structure, 71-Fixing frame, 72-Linear drive module, 73-Displacement seat, 8-Clamping seat, 9-Clamping structure, 91-Positioning column, 92-Guide rod, 93-Mounting seat, 94-Limit spring, 10-Conveying platform, 101-Conveyor belt, 102-Transfer roller, 11-Drive mechanism, 111-Guide seat, 112-Displacement rod, 113-Reset spring 114-Guide groove, 115-Guide block, 116-Transmission rod, 117-Connecting structure, 118-Push rod, 12-Pushing structure, 121-Servo push rod structure, 122-Connecting assembly, 123-Cage, 124-Connecting column, 125-Electromagnetic lock, 13-Negative pressure suction cup structure, 14-Electric push rod, 141-Top plate, 15-Connecting structure, 151-Connecting seat, 152-Through groove, 153-Inlet / outlet, 154-Mounting rod, 155-Limiting block, 156-Torsion spring structure. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0027] Example This invention provides an automotive thread inspection device, such as... Figure 1 , Figure 2 As shown, it includes a testing housing 1, and a testing platform 2 is installed inside the testing housing 1; the testing platform 2 divides the testing housing 1 into two areas.

[0028] A test base 3 is installed on the testing platform 2, and a "U"-shaped drive mounting frame 4 is installed on the testing platform 2. A test motor 5 is installed on the mounting frame 4, which is perpendicular to the mounting frame 4. There are two sets of test motors 5, which are used to detect the degree of tightening of two threaded parts on the automotive workpiece to be tested, thereby improving the assembly quality of the part.

[0029] A detection rod 6 is slidably mounted on the output end of the test motor 5; the detection rod 6 is a cross-shaped screwdriver, which improves the connection strength after the structure is connected to the two threaded parts on the automotive line workpiece, and prevents problems such as slippage or misalignment during the testing process that could lead to inaccurate measurement of the structure.

[0030] The mounting bracket 4 is equipped with an adjustment structure 7 that is connected to the test motor 5 for driving the test motor 5 to reciprocate in the vertical direction; the test base 3 is equipped with a clamping seat 8, and the clamping seat 8 is equipped with a clamping structure 9 for clamping the workpiece to be tested; the automotive line workpiece to be tested is placed on the clamping structure 9 of the clamping seat 8 and fixed, in order to prevent the two threaded parts on the automotive line workpiece from slipping or misaligning during the test, which would lead to inaccurate measurement; and to prevent the automotive line workpiece from detaching from the clamping seat 8.

[0031] The inspection platform 2 is equipped with a drive clamping seat 8 to enter the conveyor platform 10 in the area to be inspected; when the conveyor platform 10 is started, it drives the clamping seat 8 carrying the workpiece to move along a fixed direction (e.g., the X-axis direction) and enter the "area to be inspected" of the equipment.

[0032] The testing platform 2 is equipped with a pushing structure 12, which drives the clamping seat 8 to enter and exit the testing area. The pushing direction of the pushing structure 12 is perpendicular to the conveying direction of the conveying platform 10. This allows for timely correction by the operator if any threaded parts in the automotive workpiece are found to be incorrectly screwed after the workpiece inspection is completed.

[0033] In operation, after the conveyor platform 10 transports the clamping seat 8 to the inspection area, the adjustment structure 7 on the mounting frame 4 is activated, driving the test motor 5 to reciprocate vertically (Z-axis direction) to align the threaded hole on the workpiece with the axis of the inspection rod 6. Subsequently, the test motor 5 is activated, driving the inspection rod 6 to slide downwards while rotating (or maintaining rotation, with the adjustment structure 7 pushing the test motor 5 to move), inserting it into the threaded hole of the workpiece for pass / fail detection. After the detection is completed, the adjustment structure 7 drives the inspection motor to reset, and the conveyor platform 10 then sends out the inspected workpiece and brings in the next workpiece to be inspected, starting a new cycle. If the workpiece to be inspected has a problem, the pushing structure 12 is activated simultaneously with the adjustment structure 7 driving the inspection motor to reset. This forces the clamping seat 8 and the automotive assembly line workpiece on it to move in a direction perpendicular to the conveying direction of the conveyor platform 10 (e.g., the Y-axis direction), moving it into the inspection platform 2 for secondary manual inspection.

[0034] In some technical solutions of the present invention, the adjustment structure 7 includes a fixed frame 71 mounted on the mounting frame 4, the fixed frame 71 being perpendicular to the mounting frame 4. A linear drive module 72, slidably connected to the body of the test motor 5, is provided on the side wall of the fixed frame 71. A displacement seat 73, connected to the test motor 5, is provided on the sliding end of the linear drive module 72. When it is necessary to adjust the vertical height of the detection rod 6 (or adjust the workpiece height), the linear drive module 72 (such as a cylinder or a motor-driven lead screw) in the adjustment structure 7 is activated, driving the displacement seat 73 to slide up and down along the fixed frame 71. Since the test motor 5 body is connected to the displacement seat 73, the entire test motor 5 and the detection rod 6 are moved vertically, thereby achieving the adjustment of the detection height. Furthermore, this structure adopts a dedicated linear drive module 72 (servo electric push rod structure) and displacement seat 73, which can controllably adjust the vertical position of the test motor 5 (and thus the detection rod 6) to adapt to the inspection requirements of workpieces of different heights and specifications; and the fixed frame 71 is set vertically with the mounting frame 4 to form a stable support frame, ensuring the rigidity and straightness of the test motor 5 during the up and down movement, and preventing vibration from affecting the detection accuracy.

[0035] In some technical solutions of the present invention, the clamping structure 9 includes a plurality of positioning posts 91 mounted on the clamping base 8. The plurality of positioning posts 91 surround each other to form a rectangular assembly area. Two guide rods 92 are inserted inside the clamping base 8, and a mounting base 93 is installed between the two guide rods 92. The two positioning posts 91 are mounted on the mounting base 93. The clamping base 8 is provided with two limiting springs 94 respectively connected to the guide rods 92. The workpiece is placed into the rectangular assembly area surrounded by the plurality of positioning posts 91. During placement, the workpiece may press against the two positioning pins 91 mounted on the mounting base 93. Under the pressure of the workpiece, the mounting base 93, through the guide rod 92 and the limiting spring 94 set in the clamping seat 8, keeps the positioning pins 91 on the mounting base 93 pressed against one side of the workpiece. In cooperation with other positioning pins 91, the workpiece is flexibly clamped from multiple directions. Flexible clamping avoids scratches or deformation of the workpiece surface that may be caused by rigid clamping. It is especially suitable for automotive parts with high surface requirements. The floating is achieved by using springs and guide rods 92. The mechanical structure is simple, the operation is reliable, and the cost is low.

[0036] In some technical solutions of the present invention, the conveying platform 10 includes a conveyor belt 101 arranged on the test base 3 along the extension direction of the mounting frame 4, and two transmission rollers 102 are rotatably arranged inside the test base 3. The conveyor belt 101 is wound around the wheel surface of the two transmission rollers 102 and then connected end to end.

[0037] There are several clamping seats 8, which are arranged around the outer wall of the conveyor belt 101. The mounting frame 4 is equipped with a drive structure for driving the conveyor belt 101 to reciprocate. The drive structure drives the transmission roller 102 to rotate, thereby causing the conveyor belt 101 to circulate. Since multiple clamping seats 8 are evenly installed on the outer wall of the conveyor belt 101, when the conveyor belt 101 moves, it drives all the clamping seats 8 to move together in a circulatory manner along the extension direction of the mounting frame 4, realizing intermittent or continuous conveying of workpieces. The conveyor belt 101, together with multiple clamping seats 8, can form a circulating production line to realize uninterrupted loading, inspection, and unloading processes, greatly improving the overall operation efficiency.

[0038] In some technical solutions of the present invention, the driving structure includes a guide seat 111 mounted vertically on the mounting frame 4, a displacement rod 112 passing through the guide seat 111, a return spring 113 connected to the displacement rod 112, a guide groove 114 formed on the test base 3, a guide block 115 slidably disposed within the guide groove 114, a transmission rod 116 hinged to the outer wall of the guide block 115, the transmission rod 116 being hinged to the displacement rod 112, and a connection between the guide block 115 and the conveyor belt 1. The outer wall of 01 is detachably connected to the connecting structure 117; in the initial state, the transmission rod 116 abuts against the outer wall of the conveyor belt 101; when the adjusting structure 7 pushes the clamping seat 8 to move downward in the vertical direction, the clamping seat 8 pushes the guide block 115 to slide in the guide groove 114 through the displacement rod 112 and the transmission rod 116, and the connecting structure 117 located on the transmission rod 116 is connected to the conveyor belt 101, pulling the conveyor belt 101 to make a circular motion, thereby pushing the clamping seat 8 to the area to be tested. When the adjusting structure 7 pushes the clamping seat 8 (and the workpiece) to move vertically downwards to complete the inspection and reset, the downward-moving clamping seat 8 or its associated components will press (or act through other means) the displacement rod 112. The displacement rod 112 is pressed down, and through the transmission rod 116 hinged to it, the vertical downward movement is converted into a horizontal force, pushing the guide block 115 to slide within the guide groove 114. At the beginning of the sliding of the guide block 115, the connecting structure 117 (initially in contact with the conveyor belt 101) engages or locks with the conveyor belt 101, thereby pulling the conveyor belt 101 to move one pitch, accurately sending the next clamping seat 8 into the inspection area. When the adjusting structure 7 moves the clamping seat 8 upwards to prepare for inspection, the pressure on the displacement rod 112 is released, and the reset spring 113 resets the displacement rod 112, transmission rod 116, and guide block 115. The connecting structure 117 also disengages from the conveyor belt 101, and the conveyor belt 101 stops, waiting for the next trigger. This structure converts motion into horizontal motion via a linkage (displacement rod 112, transmission rod 116), ultimately driving the intermittent motion of the conveyor belt 101. This allows the conveying action of the clamping seat 8 to be directly triggered by the detection action, eliminating the need for additional control signals or a separate conveyor drive motor, thus achieving automatic and precise synchronization between the detection cycle and the conveying cycle.

[0039] In some technical solutions of the present invention, the connecting structure 117 includes a connecting seat 151, which is disposed on the side wall opposite to the guide block 115 and the conveyor belt 101. A through groove 152 is provided on the side wall of the connecting seat 151, and an inlet and outlet 153 communicating with the through groove 152 is provided on the outer side wall of the connecting seat 151. An installation rod 154 is inserted into the inlet and outlet 153. A limit block 155 is installed at the end of the installation rod 154 placed in the through groove 152. The installation rod 154 is rotatably disposed in the inlet and outlet 153. A torsion spring structure 156 connected to the rotation shaft of the installation rod 154 is provided in the inlet and outlet. The guide block 115 and the transmission rod 116 are connected to each other. An installation groove is provided on the side wall of the mounting bracket. An installation block connected to the transmission rod 116 is slidably installed in the installation groove. A push rod 118 is provided on the installation block to abut against the mounting rod 154. The end of the transmission rod 116 connected to the guide block 115 is slidably installed in the guide block 115. When the transmission rod 116 pushes the guide block 115 to move in the guide groove 114, the push rod 118, under the push of the transmission rod 116, pushes the mounting rod 154 to deflect within the inlet / outlet 153, and the limiting block 155 is partially embedded in the conveyor belt 101. Then, the guide block 115 pulls the conveyor belt 101 to make a circular motion, thereby pushing the clamping seat 8 to the area to be tested. In the initial state, the partial embedding of the conveyor belt 101 is within the limiting area between the limiting block 155 and the through groove 152. When the transmission rod 116 moves under the push of the displacement rod 112, the push rod 118 mounted on the transmission rod 116 first contacts and pushes the mounting rod 154 to rotate within the inlet / outlet 153, overcoming the resistance of the torsion spring structure 156, causing the limiting block 155 to deflect within the through groove 152. The deflected limiting block 155 embeds itself into the gap or structure of the conveyor belt 101, or the limiting block 155 changes the height of the limiting area, pressing the conveyor belt 101 tightly within the through groove 152, achieving a rigid connection between the two. Subsequently, the continued movement of the transmission rod 116, through the guide block 115 and the engaged connecting structure 117, forcibly pulls the conveyor belt 101 along the conveying direction. When the action is completed and the transmission rod 116 moves in the reverse direction, the pressure of the push rod 118 on the mounting rod 154 disappears, and the torsion spring structure 156 causes the mounting rod 154 to rotate in the reverse direction, driving the limiting block 155 to retract into the through groove 152 of the connecting seat 151, and the limiting block 155 disengages from the conveyor belt 101. Subsequently, under the action of the return spring 113, the entire drive structure is reset under the traction of the displacement rod 112. This structure is controlled by a torsion spring and a lever (push rod 118) to deflectable limiting block 155. When driving is needed, it protrudes and "hooks" the conveyor belt 101 through mechanical action; when not needed, it retracts by spring force and "disengages" from the conveyor belt 101.This achieves "on-demand connection" for power transmission. The structure ensures that a rigid connection is formed with the conveyor belt 101 only when it is needed to propel the conveyor belt 101, providing positive thrust. During the reset process, it automatically disengages to avoid reverse interference or resistance to the conveyor belt 101, which could cause the mechanism to jam or the conveyor belt 101 to slip back during the reset due to the rigid connection.

[0040] In some technical solutions of this invention, the pushing structure 12 includes a servo push rod structure 121 mounted on the test base 3. The servo push rod structure 121 is an electric lead screw structure, and the displacement end of the servo push rod structure 121 is provided with a connecting component 122 that is detachably connected to the clamping seat 8. If the workpiece to be tested has a problem, the servo push rod structure 121 is activated, its displacement end extends, and it connects or engages with the clamping seat 8 through the connecting component 122 (such as a claw, magnet, etc.). Then, it pushes the clamping seat 8 to move linearly along a direction perpendicular to the conveying direction (Y-axis), forcing the workpiece on the clamping seat 8 and the automotive line workpiece thereon to move in a direction perpendicular to the conveying direction of the conveying platform 10 (e.g., the Y-axis direction), moving it into the testing platform 2 to complete the secondary manual inspection after the initial inspection. The servo push rod structure 121 is an electric push rod mechanism.

[0041] In some technical solutions of the present invention, the connecting assembly 122 includes a retainer 123 mounted on the displacement end of the servo push rod structure 121. A connecting post 124 is provided on the side wall of the retainer 123 opposite to the clamping seat 8. A countersunk hole matching the connecting post 124 is opened on the side wall of the mounting seat 93. An electromagnetic lock 125 magnetically connected to the mounting seat 93 is provided on the connecting post 124. The servo push rod structure 121 drives the retainer 123 to move towards the clamping seat 8, causing the connecting post 124 on the retainer 123 to insert into the countersunk hole on the side of the clamping seat 8 (mounting seat 93). The electromagnetic lock 125 is energized, generating magnetic force to firmly attract the connecting post 124 into the countersunk hole (or attract it to a metal part in the countersunk hole), achieving a rigid connection between the retainer 123 and the clamping seat 8. The servo push rod structure 121 performs a push / pull-back action. After the action is completed, the electromagnetic lock 125 is de-energized and demagnetized, the connecting post 124 separates from the countersunk hole, and the servo push rod structure 121 drives the retainer 123 to retract. The cooperation between the connecting post 124 and the countersunk hole provides precise radial positioning, and the electromagnetic lock 125 provides strong axial locking force, ensuring that the two are as rigid as a single unit during the pushing process without any shaking, thus guaranteeing positioning accuracy.

[0042] In some technical solutions of this invention, the outer wall of the mounting base 93 is provided with a negative pressure suction cup structure 13 for the workpiece to be tested. While the clamping base 8 mechanically clamps the workpiece through the positioning post 91 (or as the main clamping means), the negative pressure suction cup structure 13 is activated, a vacuum is drawn to generate suction, and the surface or specific area of ​​the workpiece is firmly adsorbed onto the mounting base 93, providing additional fixing force. This provides an additional fixing force perpendicular to the positioning surface for the workpiece, preventing the workpiece from tilting or slightly displacing when the detection rod 6 is rotated and screwed in. This is especially important for lighter or less rigid workpieces.

[0043] In some technical solutions of this invention, the servo pusher structure is provided with an electric pusher 14, and the telescopic end of the electric pusher 14 is provided with a top plate 141 that abuts against the workpiece to be inspected. After the inspection is completed, the clamping seat 8 is pulled back to the position of the conveyor belt 101 by the pushing structure 12. At this time, the electric pusher 14 on the retainer 123 is activated, its telescopic end extends, pushes the top plate 141 to hold the workpiece that has been inspected, and smoothly pushes it out of the positioning post 91 of the clamping structure 9, so that it is separated from the clamping seat 8 and moved into the inspection platform 2 to complete the secondary manual inspection after the initial inspection.

[0044] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for inspecting automotive threaded wires, characterized in that, Includes a testing enclosure, within which a testing platform is installed; The testing platform is equipped with a test base and a mounting frame, and the mounting frame is equipped with a test motor perpendicular to it. A detection rod is slidably mounted on the output end of the test motor; The mounting bracket is equipped with an adjustment structure that is connected to the test motor drive, which is used to drive the test motor to reciprocate in the vertical direction; The test base is provided with a clamping seat, and the clamping seat is provided with a clamping structure for clamping the workpiece to be tested; The detection platform is equipped with a conveying platform that drives the clamping seat into the area to be detected; The detection platform is equipped with a push structure that drives the clamping seat to move in and out of the detection area; the push direction of the push structure is perpendicular to the conveying direction of the conveying platform.

2. The automotive thread inspection device according to claim 1, characterized in that, The adjustment structure includes a fixed frame mounted on the mounting bracket, the fixed frame being perpendicular to the mounting bracket, and a linear drive module slidably connected to the body of the test motor on the side wall of the fixed frame, and a displacement seat connected to the test motor on the sliding end of the linear drive module.

3. The automotive thread inspection device according to claim 1 or 2, characterized in that, The clamping structure includes several positioning posts installed on the clamping base. The positioning posts surround each other to form a rectangular assembly area. Two guide rods are inserted inside the clamping base, and a mounting base is installed between the two guide rods. The two positioning posts are installed on the mounting base. The clamping base is provided with two limiting springs that are respectively connected to the guide rods.

4. The automotive thread inspection device according to claim 3, characterized in that, The conveying platform includes a conveyor belt disposed on the test base along the extension direction of the mounting frame. Two transmission rollers are rotatably disposed inside the test base. The conveyor belt is wound around the wheel surfaces of the two transmission rollers and connected end to end. There are several clamping seats, which are arranged around the outer side wall of the conveyor belt. The mounting frame is provided with a drive structure for driving the conveyor belt to reciprocate.

5. The automotive thread inspection device according to claim 4, characterized in that, The driving structure includes a guide seat mounted vertically on a mounting frame, a displacement rod passing through the guide seat, a return spring connected to the displacement rod, a guide groove on the test base, a guide block slidably disposed within the guide groove, a transmission rod hinged to the outer wall of the guide block, the transmission rod being hinged to the displacement rod, and a connecting structure detachably connected to the outer wall of the conveyor belt on the side wall of the guide block. Initially, the transmission rod abuts against the outer wall of the conveyor belt. When the adjusting structure pushes the clamping seat downwards vertically, the clamping seat, through the displacement rod and the transmission rod, pushes the guide block to slide within the guide groove. The connecting structure on the transmission rod connects to the conveyor belt, pulling the conveyor belt in a circular motion, thereby pushing the clamping seat into the area to be tested.

6. The automotive thread inspection device according to claim 5, characterized in that, The connecting structure includes a connecting seat disposed on the side wall opposite to the guide block and the conveyor belt. A through groove is formed on the side wall of the connecting seat, and an inlet / outlet communicating with the through groove is formed on the outer side wall of the connecting seat. An installation rod passes through the inlet / outlet, and a limit block is installed at the end of the installation rod placed in the through groove. The installation rod is rotatably disposed within the inlet / outlet. A torsion spring structure connected to the rotation shaft of the installation rod is provided within the inlet / outlet. A push rod is provided on the side wall of the transmission rod, abutting against the installation rod. The end of the transmission rod connected to the guide block is slidably disposed within the guide block. When the transmission rod pushes and slides within the guide groove, the push rod, under the push of the transmission rod, pushes the installation rod to deflect within the inlet / outlet, causing the limit block to partially embed within the conveyor belt. Subsequently, the guide block pulls the conveyor belt to perform a circular motion, thereby pushing the clamping seat to the area to be tested.

7. The automotive thread inspection device according to claim 4, characterized in that, The pushing structure includes a servo push rod structure mounted on the test base, and the displacement end of the servo push rod structure is provided with a connecting component that is detachably connected to the clamping base.

8. The automotive thread inspection device according to claim 7, characterized in that, The connecting assembly includes a retainer mounted on the displacement end of the servo push rod structure. A connecting post is provided on the side wall of the retainer opposite to the clamping seat. A countersunk hole matching the connecting post is opened on the side wall of the mounting seat. An electromagnetic lock that is magnetically connected to the mounting seat is provided on the connecting post.

9. The automotive thread inspection device according to claim 8, characterized in that, The outer wall of the mounting base is provided with a negative pressure suction cup structure for the workpiece to be tested.

10. The automotive thread inspection device according to claim 8, characterized in that, The displacement end of the servo push rod structure is provided with an electric push rod, and the telescopic end of the electric push rod is provided with a top plate that abuts against the workpiece to be tested.

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