Workpiece thread twisting force detection device
By combining a servo motor-driven thread gauge and position sensor with a cylinder-driven moving component, the accuracy and efficiency problems of traditional manual inspection methods are solved, enabling precise detection of the screw thread torque of workpieces and improving the production efficiency and product quality of the manufacturing industry.
Patent Information
- Application Number
- CN202423307750.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional manual thread torque testing methods suffer from low accuracy and poor repeatability, failing to meet the testing requirements of modern manufacturing for efficient and high-quality products. Furthermore, they are inefficient and ill-suited for large-scale production needs.
The tooth gauge is driven by a servo motor and combined with a position sensor. The moving component driven by a cylinder achieves precise positioning of the workpiece and torque measurement. The combination of guide rails and ball bearings ensures the stability and accuracy of the detection component.
It enables precise detection of workpiece screw torque, improves product quality and testing efficiency, reduces human error, enhances the repeatability of test results and the stability of the device, and adapts to the needs of mass production.
Smart Images

Figure CN223741939U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of workpiece thread torque detection technology, and in particular to a workpiece thread torque detection device. Background Technology
[0002] In modern manufacturing, many workpieces require precise thread connections to ensure the stability and functionality of the overall structure. With the acceleration of industrial automation and the continuous improvement of product quality requirements, traditional manual thread torque testing methods are no longer sufficient to meet production demands.
[0003] On the one hand, manual inspection relies on the skills and experience of operators, and the inspection results are easily affected by human factors, such as uneven operating force and angle deviation, resulting in low inspection accuracy and poor repeatability. This makes it impossible to guarantee the consistency of product quality, and the defect rate is difficult to control effectively, increasing production costs and quality risks.
[0004] On the other hand, in large-scale production environments, manual inspection is inefficient, becoming a bottleneck on the production line and severely restricting the improvement of production efficiency, making it difficult to keep pace with the rhythm of modern high-efficiency production. Moreover, for some high-precision, complex-structured workpieces, manual inspection is even more difficult to achieve accurate and comprehensive measurement of screw thread torque, failing to meet the inspection requirements of complex processes and high-quality products. To address this, we propose a workpiece screw thread torque detection device. Utility Model Content
[0005] This invention addresses the shortcomings of existing technologies by proposing a workpiece thread torque detection device. This device effectively solves the problems of traditional detection methods, thereby improving the production efficiency and product quality of the manufacturing industry.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A workpiece thread torque detection device includes a base plate, a support is provided on the upper side of the base plate, a mounting base is provided on one side of the support, a vertical moving component is provided on one side of the mounting base, a workpiece thread torque detection component is provided on one side of the vertical moving component, a front-back moving component is provided on the upper side of the base plate, a left-right moving component is provided on the upper side of the front-back moving component, a product placement component is provided on the upper side of the left-right moving component, and a positioning component for positioning the product placement component is provided on the upper side of the base plate.
[0008] Preferably, the up-and-down moving assembly includes a cylinder, which is disposed on one side of the mounting base. The cylinder has a mounting plate at its shaft end and a support plate on one side of the mounting plate.
[0009] Preferably, the workpiece thread torque detection component includes a servo motor, which is disposed on the upper side of the support plate. A coupling is disposed on the shaft end of the servo motor, a thread gauge is disposed on one side of the coupling, a position sensor is disposed on one side of the support plate, a guide rail is disposed on one side of the mounting plate, a guide seat is disposed on one side of the guide rail, and a ball bearing is disposed inside the guide seat. The ball bearing is rotatably sleeved with the thread gauge.
[0010] Preferably, the forward and backward moving assembly includes a forward and backward moving guide rail, which is disposed on the upper side of the base plate. A second cylinder is disposed on the upper side of the base plate. A first moving plate is slidably connected to the upper side of the forward and backward moving guide rail, and the shaft end of the second cylinder is connected to one side of the first moving plate.
[0011] Preferably, the left and right moving component includes left and right moving guide rails, which are disposed on the upper side of the first moving plate. A third cylinder is disposed on the upper side of the first moving plate. A second moving plate is slidably connected to the upper side of the left and right moving guide rails, and the shaft end of the third cylinder is connected to one side of the second moving plate.
[0012] Preferably, the product placement assembly includes a product placement seat, which is disposed on the upper side of the movable plate two. A product placement slot is provided on the upper side of the product placement seat, and a cylinder four is provided on one side of the product placement slot.
[0013] Preferably, the positioning component includes a vertical plate disposed on the upper side of the base plate, and a positioning cylinder is disposed on one side of the vertical plate.
[0014] Preferably, support feet are provided at the lower corners of the base plate.
[0015] In summary, the beneficial effects of this utility model are as follows:
[0016] Precise Inspection: The servo motor drives the thread gauge, and in conjunction with the position sensor, it can precisely control the rotation and torque application of the thread gauge, thereby accurately measuring the thread torque of the workpiece, effectively ensuring the thread quality of the product, reducing product defects caused by thread torque issues, and improving the overall product quality.
[0017] Highly efficient operation: The up-down, forward-backward, and left-right moving components are driven by cylinders one, two, and three respectively, enabling the workpiece thread torque detection component and the product placement component to quickly and accurately reach the designated position without manual adjustment. This greatly shortens the detection preparation time and improves detection efficiency, making it especially suitable for workpiece detection in mass production.
[0018] Stable and reliable: The overall structure of the device is robust, with the base plate and support feet providing a stable foundation for each component, reducing shaking and displacement during the testing process and ensuring the accuracy and reliability of the test data. The cooperation between the guide rails and guide seats, as well as the movement rails and moving plates, ensures smooth and stable movement of each component, reducing the risk of equipment failure and extending the service life of the equipment.
[0019] Convenient Positioning: The product placement seat and slot facilitate the placement and initial positioning of the workpiece, while cylinder four further secures the workpiece, preventing it from shifting during inspection. The positioning assembly accurately positions the product placement component, ensuring consistent relative positions between the workpiece and the inspection assembly in each inspection. This improves the repeatability and comparability of inspection results, reduces human error, and enhances the automation and accuracy of the inspection process. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the front axial side of this utility model;
[0021] Figure 2 This is a schematic diagram of the structure on the axial side of the back of this utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the present invention with a cross-section of the axial side.
[0023] Figure 4 This utility model Figure 3 A schematic diagram of the structure of A in the middle.
[0024] In the diagram: 1. Base plate; 2. Bracket; 3. Mounting seat; 4. Cylinder 1; 5. Mounting plate; 6. Support plate; 7. Servo motor; 8. Coupling; 9. Thread gauge; 10. Position sensor; 11. Guide rail; 12. Guide seat; 13. Ball bearing; 14. Front and rear moving guide rail; 15. Cylinder 2; 16. Moving plate 1; 17. Left and right moving guide rail; 18. Cylinder 3; 19. Moving plate 2; 20. Product placement seat; 21. Product placement slot; 22. Cylinder 4; 23. Vertical plate; 24. Positioning cylinder; 25. Support foot. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0026] like Figures 1-4As shown, a workpiece thread torque testing device has four support feet 25 installed at the lower corner of the base plate 1. They can be fixed by welding or bolting to ensure that the support feet are firmly and vertically connected to the base plate, so that the entire device is placed stably and can withstand various forces during the testing process. This provides a stable foundation platform for the subsequent installation of various components and avoids the impact of device shaking on the testing accuracy and equipment life.
[0027] The bracket 2 is vertically installed at a predetermined position on the upper side of the base plate 1 and secured with bolts to ensure its verticality and stability, enabling it to firmly support the mounting base 3 and subsequent testing components. The mounting base 3 is then installed on one side of the bracket 2, also using bolts for connection, ensuring the mounting base is installed flat and firmly, without gaps or looseness between it and the bracket. This provides a reliable support structure for the installation of the vertically moving components, ensuring the stability and accuracy of the testing components during vertical movement.
[0028] Install cylinder 4 on one side of mounting base 3, and secure the cylinder body of cylinder 4 firmly with bolts, ensuring that its axis is aligned with the design direction without tilting or offset. Next, connect the shaft end of cylinder 4 to mounting plate 5. The connection method can be a pin connection or a threaded connection, ensuring a firm connection and flexible rotation, allowing mounting plate 5 to move smoothly up and down with the extension and retraction of cylinder 4. Install support plate 6 on one side of mounting plate 5, using welding or bolt connection, ensuring a tight connection between the support plate and mounting plate. This provides a stable support platform for the workpiece thread torque detection assembly, ensuring the stability of the detection assembly during the detection process and reducing the impact of vibration and displacement on detection accuracy.
[0029] The servo motor 7 is mounted on the upper side of the support plate 6 and secured with bolts to ensure a firm installation. Its axis is perpendicular to the support plate to guarantee smooth motor operation and accurate torque output. A coupling 8 is installed on the shaft end of the servo motor 7, using a keyed or clamping connection to ensure a tight connection between the coupling and the motor shaft, without loosening or relative slippage, enabling accurate transmission of motor torque. A thread gauge 9 is installed on one side of the coupling 8, ensuring a firm and coaxial connection between the gauge and the coupling, allowing the gauge to rotate precisely with the motor, thus detecting the torque of the workpiece threads. A position sensor 10 is installed on one side of the support plate 6, secured with a bracket or slot, ensuring the position sensor accurately monitors the rotational position and angle of the thread gauge, providing feedback signals for precise control of the detection process and guaranteeing the accuracy and reliability of the detection data. A guide rail 11 is installed on one side of the mounting plate 5 to ensure it is firmly fixed to the mounting plate and parallel to the requirements. Then, a guide seat 12 is installed on one side of the guide rail 11. The guide seat can slide smoothly on the rail. A ball bearing 13 is installed inside the guide seat 12 and is rotatably connected to the thread gauge 9. The thread gauge is supported by the ball bearing, which reduces friction and wear when the thread gauge rotates. At the same time, it ensures the stability and coaxiality of the thread gauge during up and down movement, further improving the detection accuracy and service life of the device.
[0030] The front and rear moving guide rails 14 are installed at predetermined positions on the upper side of the base plate 1 and fixed with bolts to ensure that the guide rails are installed flat and have the required straightness, so that they can provide stable and precise front and rear movement guidance for the moving plate 16. A second cylinder 15 is installed on the upper side of the base plate 1, ensuring that the axis of the second cylinder is parallel to the front and rear moving guide rails 14. The shaft end of the second cylinder 15 is connected to one side of the moving plate 16, using a connection method similar to that between the first cylinder and the mounting plate. This ensures that the moving plate 1 can slide smoothly back and forth along the front and rear moving guide rails 14 under the drive of the second cylinder, realizing the relative position adjustment of the workpiece thread torque detection component and the product placement component in the front and rear direction. This facilitates the detection of workpieces in different positions, improving the versatility and detection efficiency of the device.
[0031] A left-right moving guide rail 17 is installed on the upper side of the first moving plate 16 and fixed with bolts to ensure that the guide rail is firmly installed and perpendicular to the front-rear moving guide rail 14, providing precise left-right movement guidance for the second moving plate 19. A third cylinder 18 is installed on the upper side of the first moving plate 16, ensuring that the axis of the third cylinder is parallel to the left-right moving guide rail 17. The shaft end of the third cylinder 18 is connected to one side of the second moving plate 19, so that the second moving plate can slide smoothly left and right along the left-right moving guide rail 17 under the drive of the third cylinder. This realizes the position adjustment of the workpiece thread torque detection component and the product placement component in the left-right direction. In conjunction with the front-rear moving component, the detection component can be quickly and accurately moved to any position above the product placement component, further improving the flexibility and detection efficiency of the device and adapting to the detection needs of workpieces of different sizes and layouts.
[0032] The product placement seat 20 is installed on the upper side of the movable plate 19 and secured with bolts to ensure a firm and level installation. A product placement groove 21 is machined on the upper side of the product placement seat 20. The size and shape of the groove are designed according to the shape and size of the workpiece to be inspected, ensuring the workpiece can be stably placed within the groove and preventing displacement or rolling during inspection. A cylinder 4 22 is installed on one side of the product placement groove 21, with its piston rod facing the workpiece placement position. After the workpiece is placed in the groove, the piston rod of cylinder 4 extends to assist in fixing the workpiece, ensuring stable positioning of the workpiece during inspection and accurate relative positioning with the thread gauge, thus guaranteeing the accuracy and reliability of the inspection results.
[0033] The upright plate 23 is installed at a predetermined position on the upper side of the base plate 1, close to the product placement assembly, and fixed with bolts to ensure that the upright plate is vertical and firm. A positioning cylinder 24 is installed on one side of the upright plate 23, with the piston rod of the positioning cylinder facing the product placement assembly. By adjusting the stroke and position of the positioning cylinder, the piston rod can be extended to accurately position the product placement assembly when it moves to the detection position. This ensures that the relative position of the workpiece and the detection assembly is consistent during each detection, improves the repeatability and accuracy of the detection results, reduces detection errors caused by workpiece position deviations, and improves the detection stability and reliability of the device.
[0034] In this embodiment, the power supply of the device is turned on to power on all electronic components, including the servo motor 7, the position sensor 10, and the control system of each cylinder. The initial positions of each cylinder are checked. Cylinder 14 should be in a retracted state, driving the mounting plate 5 and support plate 6 to the upper starting position; Cylinders 25 and 38 should position the moving plate 16 and 29 in the middle position in the front-back and left-right directions, so that they can be flexibly moved to the desired position later; Positioning cylinder 24 is in a retracted state, not affecting the initial placement operation of the product placement assembly; Cylinder 4 22 is also in a retracted state, and the product placement slot 21 is empty.
[0035] Workpiece Placement: Carefully place the standard workpiece into the product placement slot 21 of the product placement seat 20, ensuring that the threaded hole of the workpiece is roughly aligned with the position of the thread gauge 9, and that the workpiece is placed stably in the slot without tilting or shaking. Then, activate cylinder 4 22 to extend its piston rod and gently press it against one side of the workpiece to further secure it in the placement slot, preventing displacement of the workpiece during subsequent testing and ensuring the accuracy of the test.
[0036] Positioning Operation: The positioning cylinder 24 extends its piston rod, and the positioning block at the front end of the piston rod contacts one side of the product placement assembly, pushing the product placement seat 20 and the workpiece on it to move along the left and right moving guide rail 17 for fine adjustment until the workpiece is precisely positioned at the preset detection position. At this time, through the precise control of the positioning assembly, the relative positional accuracy of the workpiece and the thread gauge 9 in the horizontal direction is ensured, providing a guarantee for the accurate detection of thread torque.
[0037] Testing Process: The cylinder 4 of the up-and-down moving assembly is activated, extending its piston rod and causing the mounting plate 5, support plate 6, and the workpiece thread torque testing assembly mounted on them to move downwards. During this movement, the guide rail 11 engages with the ball bearing 13 within the guide seat 12 to ensure the thread gauge 9 descends smoothly in the vertical direction without deviation or wobbling. As the thread gauge 9 approaches the threaded hole of the workpiece, the descent speed of the cylinder 4 is reduced, allowing the thread gauge 9 to slowly and accurately insert into the threaded hole of the workpiece until the preset initial testing depth is reached.
[0038] Next, the servo motor 7 is started, driving the thread gauge 9 to rotate according to preset torque and speed parameters via the coupling 8. During rotation, the position sensor 10 monitors the rotation angle and position information of the thread gauge 9 in real time and transmits this data to the control system. Based on the preset program and algorithm, and combined with the data fed back from the position sensor 10, the control system precisely controls the output torque and rotation angle of the servo motor 7 to ensure that the torque applied by the thread gauge 9 to the workpiece threads meets the standard testing requirements. Simultaneously, it records key data such as the torque change curve of the thread gauge 9 during rotation and the final maximum torque value, for subsequent data analysis and comparison.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A workpiece thread torque degree detection device, comprising a bottom plate (1), the upper side of the bottom plate (1) is provided with a support (2), characterized in that, One side of the support (2) is provided with a mounting seat (3), one side of the mounting seat (3) is provided with an up-down moving assembly, one side of the up-down moving assembly is provided with a workpiece thread torsion degree detection assembly, the upper side of the bottom plate (1) is provided with a front-back moving assembly, the upper side of the front-back moving assembly is provided with a left-right moving assembly, the upper side of the left-right moving assembly is provided with a product placing assembly, and the upper side of the bottom plate (1) is provided with a positioning assembly for positioning the product placing assembly.
2. The device according to claim 1, wherein The up-down moving assembly comprises a cylinder one (4), which is arranged on one side of the mounting seat (3), and the shaft end of the cylinder one (4) is provided with a mounting plate (5), and one side of the mounting plate (5) is provided with a supporting plate (6).
3. The device according to claim 2, wherein The workpiece thread torsion degree detection assembly comprises a servo motor (7), which is arranged on the upper side of the supporting plate (6), and the shaft end of the servo motor (7) is provided with a shaft coupling (8), one side of the shaft coupling (8) is provided with a thread gauge (9), one side of the supporting plate (6) is provided with a position sensor (10), one side of the mounting plate (5) is provided with a guide slide rail (11), one side of the guide slide rail (11) is provided with a guide seat (12), the guide seat (12) is provided with a ball bearing (13), and the ball bearing (13) is rotatably connected with the thread gauge (9).
4. The device according to claim 1, wherein The front-back moving assembly comprises a front-back moving guide rail (14), which is arranged on the upper side of the bottom plate (1), and the upper side of the bottom plate (1) is provided with a cylinder two (15), and the shaft end of the cylinder two (15) is connected to one side of the moving plate one (16).
5. The device according to claim 4, wherein The left-right moving assembly comprises a left-right moving guide rail (17), which is arranged on the upper side of the moving plate one (16), and the upper side of the moving plate one (16) is provided with a cylinder three (18), and the shaft end of the cylinder three (18) is connected to one side of the moving plate two (19).
6. The device according to claim 5, wherein The product placing assembly comprises a product placing seat (20), which is arranged on the upper side of the moving plate two (19), and the upper side of the product placing seat (20) is provided with a product placing groove (21), and one side of the product placing groove (21) is provided with a cylinder four (22).
7. The device according to claim 1, wherein The positioning assembly comprises a vertical plate (23), which is arranged on the upper side of the bottom plate (1), and one side of the vertical plate (23) is provided with a positioning cylinder (24).
8. The device according to claim 1, wherein The lower corners of the bottom plate (1) are provided with supporting legs (25).