An automatic device for measuring thread torque and depth.

Abstract

This utility model relates to the field of automotive parts testing technology, specifically to a device for automatically measuring the torque and depth of threaded connections. This design, through a transverse fixed plate, a transverse lead screw slide rail, and matching transverse slide rails and slide blocks, enables flexible horizontal movement of the testing mechanism, allowing for rapid positioning above each threaded hole on the brake disc. During testing, a torque sensor and a servo motor are connected via a coupling, enabling simultaneous measurement of the torque value when the thread is fully rotated. A laser rangefinder sensor positioned below the second vertical plate measures the depth of the threaded hole while the thread gauge is fully rotated, achieving simultaneous torque and depth detection, significantly improving testing efficiency and reducing costs. Furthermore, the design allows for continuous testing of multiple threaded holes on the brake disc, eliminating the need for individual operation and meeting the high-efficiency requirements of large-scale production.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts testing technology, and in particular to a device for automatically measuring thread torque and depth. Background Technology

[0002] In the automotive parts manufacturing industry, the quality inspection of threaded holes is crucial, as it directly affects the assembly accuracy and overall performance of parts. Existing thread inspection technologies have, to a certain extent, enabled the measurement and evaluation of thread parameters, providing strong support for the quality control of automotive parts.

[0003] Existing automated thread inspection equipment employs advanced sensor technologies, such as high-precision torque sensors and laser rangefinders. Torque sensors accurately measure the torque experienced by the thread during screwing, providing crucial information for assessing the connection strength and reliability of the thread. Laser rangefinders accurately measure the depth of the threaded hole, ensuring that the machining dimensions of the threaded hole meet design requirements. The application of these sensor technologies significantly improves the accuracy and efficiency of thread inspection, reducing the impact of human factors on the inspection results. Furthermore, some existing technologies have achieved automated inspection processes. Through automated devices such as robotic arms and servo motors, the positioning, screwing in, and unscrewing of thread gauges can be completed automatically, reducing manual intervention and improving inspection speed and production efficiency. Some fully automated thread measurement solutions for automotive engine cylinder blocks utilize a perfect combination of robotic arms and depth-sensing heads to achieve digital and automated inspection of threaded hole depth and pass / failability, meeting the demands of modern high-efficiency production.

[0004] However, existing testing equipment often requires testing each of the multiple threaded holes on a car brake disc individually, which takes a long time and cannot meet the high-efficiency requirements of large-scale production. In addition, some equipment can only test parameters such as thread go-through, torque or depth individually, and cannot obtain multiple parameters at the same time, which increases the complexity and cost of testing. Utility Model Content

[0005] The purpose of this invention is to provide an automatic device for measuring the thread go-ahead torque and depth, aiming to solve the technical problems in the prior art where existing testing equipment for multiple threaded holes on automotive brake discs often requires testing each one individually, resulting in long testing times and failing to meet the high-efficiency requirements of large-scale production. In addition, some equipment can only test parameters such as thread go-ahead, torque, or depth individually, and cannot acquire multiple parameters simultaneously, which increases the complexity and cost of testing.

[0006] To achieve the above objectives, this utility model employs an automatic device for measuring thread go / no-go torque and depth, comprising a thread go / no-go gauge, a torque sensor, a servo motor, a longitudinal moving plate, a longitudinal fixed plate, a transverse fixed plate, and a bracket. The front end face of the longitudinal moving plate is provided with a first vertical plate and a second vertical plate. The front end face of the longitudinal fixed plate is provided with a mounting base, on which a lifting cylinder is mounted. The front end face of the transverse fixed plate is provided with a transverse lead screw slide rail. The thread go / no-go gauge is located at the detection end of the torque sensor, which is also located at the output end of the servo motor and on the second vertical plate. The servo motor is located on the first vertical plate. The longitudinal moving plate is located at the output end of the lifting cylinder and is also situated on the end face of the longitudinal fixed plate. The longitudinal fixed plate is located at the moving end of the transverse lead screw slide rail, and the transverse fixed plate is mounted on the bracket.

[0007] The connection points between the threaded go / no-go gauge and the torque sensor, as well as the connection points between the torque sensor and the servo motor, are all connected by couplings.

[0008] The longitudinal fixed plate is provided with two longitudinal slide rails, and the rear end face of the longitudinal moving plate is provided with multiple longitudinal slide blocks, which are symmetrically arranged in pairs on the corresponding longitudinal slide rails.

[0009] The front end face of the transverse fixing plate is provided with two transverse slide rails, which are symmetrically arranged on both sides of the transverse lead screw slide rail. The rear end face of the longitudinal fixing plate is provided with multiple transverse slide blocks, which are symmetrically arranged in pairs on the corresponding transverse slide rails.

[0010] The device for automatically measuring thread torque and depth also includes a laser rangefinder sensor, which is located below the second vertical plate.

[0011] This invention discloses an automatic device for measuring the go / no-go torque and depth of threaded parts. The design utilizes a transverse fixed plate, a transverse lead screw slide rail, and matching transverse slide rails and slide blocks to achieve flexible horizontal movement of the detection mechanism, enabling rapid positioning above each threaded hole on the brake disc. Simultaneously, the longitudinal fixed plate, longitudinal moving plate, lifting cylinder, and matching longitudinal slide rails and slide blocks enable precise vertical lifting of the detection component, ensuring accurate entry of the thread go / no-go gauge into the threaded hole for detection. During detection, the torque sensor and servo motor are connected via a coupling to simultaneously measure the torque value when the thread reaches its full rotation. The laser distance sensor located below the second vertical plate measures the depth of the threaded hole while the thread gauge rotates to its full rotation, achieving simultaneous torque and depth detection, significantly improving detection efficiency and reducing costs. Furthermore, the device design allows for continuous detection of multiple threaded holes on the brake disc, eliminating the need for individual operation and meeting the high-efficiency requirements of large-scale production. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional perspective view of the device for automatically measuring thread torque and depth according to this utility model.

[0014] Figure 2 This is the front view of the device for automatically measuring thread torque and depth according to this utility model.

[0015] Figure 3 This is a left view of the device for automatically measuring thread torque and depth according to this utility model.

[0016] Figure 4 This is a right view of the device for automatically measuring thread torque and depth according to this utility model.

[0017] 1-Thread go / no-go gauge, 2-Torque sensor, 3-Servo motor, 4-Longitudinal moving plate, 5-Longitudinal fixed plate, 6-Transverse fixed plate, 7-Bracket, 8-First vertical plate, 9-Second vertical plate, 10-Mounting base, 11-Lifting cylinder, 12-Transverse lead screw slide rail, 13-Coupling, 14-Longitudinal slide rail, 15-Longitudinal slide block, 16-Transverse slide rail, 17-Transverse slide block, 18-Laser rangefinder sensor. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0019] Please see Figures 1 to 4 This utility model provides an automatic device for measuring thread go / no-go torque and depth, including a thread go / no-go gauge 1, a torque sensor 2, a servo motor 3, a longitudinal moving plate 4, a longitudinal fixed plate 5, a transverse fixed plate 6, and a bracket 7. The front end face of the longitudinal moving plate 4 is provided with a first vertical plate 8 and a second vertical plate 9. The front end face of the longitudinal fixed plate 5 is provided with a mounting base 10, and a lifting cylinder 11 is provided on the mounting base 10. The front end face of the transverse fixed plate 6 is provided with a transverse lead screw slide rail 12. The thread go / no-go gauge 1 is located at the detection end of the torque sensor 2. The torque sensor 2 is located at the output end of the servo motor 3 and is also located on the second vertical plate 9. The servo motor 3 is located on the first vertical plate 8. The longitudinal moving plate 4 is located at the output end of the lifting cylinder 11 and is also located on the end face of the longitudinal fixed plate 5. The longitudinal fixed plate 5 is located at the moving end of the transverse lead screw slide rail 12. The transverse fixed plate 6 is located on the bracket 7.

[0020] In this embodiment, key detection components such as the thread go / no-go gauge 1, the torque sensor 2, and the servo motor 3 are organically combined with the longitudinal moving plate 4, the longitudinal fixing plate 5, and the transverse fixing plate 6 to achieve precise positioning and movement of the detection mechanism in three-dimensional space. The bracket 7 serves as the structural foundation, ensuring the stability of the overall device. This design enables the detection process to be completed continuously and automatically, which not only significantly shortens the detection time but also significantly reduces the complexity and cost of detection by simultaneously measuring multiple parameters such as thread go / no-go performance, torque, and depth. This effectively solves the need for efficient, multi-parameter detection in large-scale production.

[0021] Furthermore, the connection point between the threaded go / no-go gauge 1 and the torque sensor 2, as well as the connection point between the torque sensor 2 and the servo motor 3, are all connected by a coupling 13.

[0022] In this embodiment, by using the coupling 13 to connect the thread go / no-go gauge 1, the torque sensor 2, and the servo motor 3, the high efficiency and accuracy of power transmission are ensured. This connection method effectively reduces energy loss and error accumulation during transmission, enabling the torque sensor 2 to accurately capture torque changes during thread rotation.

[0023] Furthermore, the longitudinal fixed plate 5 is provided with two longitudinal slide rails 14, and the rear end face of the longitudinal moving plate 4 is provided with multiple longitudinal slide blocks 15, and the multiple longitudinal slide blocks 15 are respectively symmetrically arranged in pairs on the corresponding longitudinal slide rails 14.

[0024] In this embodiment, by setting the double longitudinal slide rails 14 on the longitudinal fixed plate 5 and symmetrically distributing the longitudinal slide blocks 15 on the rear end face of the longitudinal moving plate 4, the detection component can move smoothly and accurately in the vertical direction.

[0025] Furthermore, the front end face of the transverse fixing plate 6 is provided with two transverse slide rails 16, which are symmetrically arranged on both sides of the transverse lead screw slide rail 12. The rear end face of the longitudinal fixing plate 5 is provided with multiple transverse slide blocks 17, which are symmetrically arranged in pairs on the corresponding transverse slide rails 16.

[0026] In this embodiment, by adding two transverse slide rails 16 to the transverse fixing plate 6 and forming a cooperation with the transverse slide block 17 on the rear end face of the longitudinal fixing plate 5, the detection mechanism can move flexibly and stably in the horizontal direction.

[0027] Furthermore, the device for automatically measuring thread torque and depth also includes a laser rangefinder 18, which is disposed below the second vertical plate 9.

[0028] In this embodiment, the addition of the laser rangefinder 18 enables the device to simultaneously acquire multiple parameters such as thread go-through, torque, and depth, further improving the comprehensiveness and efficiency of the detection.

[0029] In this invention, the brake disc to be tested is first placed in a rotating fixture and fixed. Then, through the cooperation of the transverse screw slide rail 12, transverse slide rail 16, and transverse slide block 17 on the transverse fixed plate 6, the longitudinal fixed plate 5 is driven to move horizontally to directly above the threaded hole to be tested on the brake disc. Next, the lifting cylinder 11 on the longitudinal fixed plate 5 pushes the longitudinal moving plate 4 down along the longitudinal slide rail 14, so that the thread go / no-go gauge 1 installed at the detection end of the torque sensor 2 accurately enters the threaded hole. At this time, the servo motor 3 drives the thread go / no-go gauge 1 to rotate through the coupling 13, while the torque sensor 2 measures the rotational torque in real time, and the laser rangefinder 18 set below the second vertical plate 9 simultaneously measures the depth of the threaded hole. After the test of one threaded hole is completed, the servo motor 3 reverses and withdraws the thread gauge, the lifting cylinder 11 lifts the longitudinal moving plate 4, and then positions it to the next threaded hole through the transverse moving mechanism, thus completing the test of all 6 threaded holes on the brake disc in sequence.

[0030] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A device for automatically measuring the thread torque and depth, characterized in that, The system includes a thread go / no-go gauge, a torque sensor, a servo motor, a longitudinal moving plate, a longitudinal fixed plate, a transverse fixed plate, and a bracket. The front end face of the longitudinal moving plate has a first vertical plate and a second vertical plate. The front end face of the longitudinal fixed plate has a mounting base, on which a lifting cylinder is mounted. The front end face of the transverse fixed plate has a transverse lead screw rail. The thread go / no-go gauge is located at the detection end of the torque sensor, which is also located at the output end of the servo motor and on the second vertical plate. The servo motor is located on the first vertical plate. The longitudinal moving plate is located at the output end of the lifting cylinder and is also situated on the end face of the longitudinal fixed plate. The longitudinal fixed plate is located at the moving end of the transverse lead screw rail, and the transverse fixed plate is mounted on the bracket.

2. The device for automatically measuring thread torque and depth as described in claim 1, characterized in that, The connection points of the threaded go / no-go gauge and the torque sensor, as well as the connection points of the torque sensor and the servo motor, are all connected by couplings.

3. The device for automatically measuring thread torque and depth as described in claim 2, characterized in that, The longitudinal fixed plate is provided with two longitudinal slide rails, and the rear end face of the longitudinal moving plate is provided with multiple longitudinal slide blocks, and the multiple longitudinal slide blocks are respectively symmetrically arranged in pairs on the corresponding longitudinal slide rails.

4. The device for automatically measuring thread torque and depth as described in claim 3, characterized in that, The front end face of the transverse fixing plate is also provided with two transverse slide rails, which are symmetrically arranged on both sides of the transverse lead screw slide rail. The rear end face of the longitudinal fixing plate is provided with multiple transverse slide blocks, which are symmetrically arranged in pairs on the corresponding transverse slide rails.

5. The device for automatically measuring thread torque and depth as described in claim 4, characterized in that, The device for automatically measuring thread torque and depth also includes a laser rangefinder sensor, which is located below the second vertical plate.

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