Workpiece torsion testing machine

Abstract

This utility model belongs to the field of torque testing, specifically a workpiece torque testing machine, including a frame, a testing component, and a sorting component. The testing component includes a motor fixedly installed inside the frame. A torque sensor and a torque disk are sequentially arranged on the top of the motor. The bottom of the torque sensor and the output end of the motor, as well as the top of the torque sensor and the bottom of the torque disk, are fixedly connected by couplings. The outer wall of the torque sensor is fixedly connected to the inner wall of the frame through a mounting plate. The top of the torque disk has a groove that conforms to the shape of the workpiece. A pair of housings are provided on one side of the torque disk. A central control module is fixedly installed on the outer wall of the frame. The central control module, the sorting component, the motor, and the torque sensor are all connected by signals. Through the cooperation of the central control module, the torque sensor, and the sorting component, automatic sorting of workpieces after torque testing can be achieved, reducing the omissions and errors that occur during traditional manual testing and sorting.

Description

Technical Field

[0001] This utility model relates to the field of torque testing, specifically a workpiece torque testing machine. Background Technology

[0002] Workpiece machining is the process of transforming raw materials into parts that meet design requirements through techniques such as mechanical cutting, milling and turning, forging, heat treatment, or additive manufacturing. Its core objective is to endow workpieces with specific dimensional accuracy, surface quality, and mechanical properties by precisely controlling material removal, deformation, or phase transformation to meet assembly or functional requirements.

[0003] In critical stages of workpiece processing (such as thread tightening, transmission component assembly, or dynamic balancing of rotating parts), torque testing is a core means of ensuring functional reliability. For example, during bolt tightening, the torque value directly determines the preload; too little torque can lead to loosening, while too much torque may cause thread stripping. The specific operation of torque testing is as follows: the workpiece torque testing system drives a torque disk to rotate via a servo motor, applying a controllable torsional torque to the workpiece; a torque sensor collects real-time data on the reaction force between the torque disk and the workpiece contact surface, converting it into an electrical signal and transmitting it to the control system; the control system, combined with preset torque thresholds, rotation angles, or time parameters, analyzes the torque-angle curve characteristics to determine whether the workpiece's torsional strength, assembly preload, or material uniformity meets the standards.

[0004] In the existing technology, after the torque test is completed, the workpieces are generally sorted manually. This sorting method is prone to failure due to factors such as operator fatigue, experience differences and environmental interference, resulting in the omission of NG products or misjudgment of OK products, which causes inconvenience to the sorting of workpieces after the torque test.

[0005] Therefore, a workpiece torque testing machine is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A workpiece torque testing machine according to this utility model includes a frame, a testing component, and a sorting component. The testing component includes a motor fixedly installed inside the frame. A torque sensor and a torque disk are sequentially arranged on the top of the motor. The bottom of the torque sensor and the output end of the motor, as well as the top of the torque sensor and the bottom of the torque disk, are fixedly connected by couplings. The outer wall of the torque sensor is fixedly connected to the inner wall of the frame through a mounting plate. The top of the torque disk has a groove that conforms to the shape of the workpiece. A pair of boxes are provided on one side of the torque disk. A central control module is fixedly installed on the outer wall of the frame. The central control module, the sorting component, the motor, and the torque sensor are all signal connected. Through the cooperation of the central control module, the torque sensor, and the sorting component, automatic sorting of workpieces after torque testing can be achieved, reducing the omissions and errors that occur during traditional manual testing and sorting.

[0008] Preferably, the test components are set in at least one pair and are symmetrically distributed along the axis of the frame. According to the actual production situation, the test components are set in at least one pair, that is, the device has at least two workstations, which can effectively adapt the sorting components to the cross-operation between multiple test components, reduce the downtime of the sorting components due to long waiting time, and improve the sorting efficiency of the device for workpieces.

[0009] Preferably, the sorting assembly includes an X-axis slide rail module fixedly installed inside the frame; a Y-axis slide rail module is slidably mounted at the bottom of the X-axis slide rail module; a Z-axis slide rail module is slidably mounted on the Y-axis slide rail module; a sliding plate is slidably mounted on the Z-axis slide rail module; a pneumatic gripper is fixedly mounted on the sliding plate, and the pneumatic gripper is used to clamp the workpiece; when sorting the workpiece, the Y-axis slide rail module can slide along the X-axis slide rail module in the X direction, and the Z-axis slide rail module can slide along the Y-axis slide rail module in the Y direction. In order to ensure accurate stopping and starting of the Y-axis slide rail module and the Z-axis slide rail module during their movement, their power mechanism can be driven by a gear rack or a lead screw and nut pair, while the sliding plate can slide along the Z-axis slide rail module in the Z direction. Since the sliding plate only controls the feed of the pneumatic gripper, it can be started by a cylinder. The pneumatic gripper is a mature existing technology that can complete the clamping of workpiece torque testing and sorting and conveying.

[0010] Preferably, a slider is fixedly connected to the top of the Y-axis slide rail module; an auxiliary slide rail is slidably mounted on the slider; the auxiliary slide rail is fixedly installed inside the frame; the slider and the auxiliary slide rail can form an additional sliding pair to improve the constraint and stability of the Y-axis slide rail module when it moves along the X-axis slide rail module.

[0011] The advantages of this utility model are:

[0012] 1. The workpiece torque testing machine of this utility model, through the cooperation of a central control module, a torque sensor, and a sorting component, can realize automatic sorting of workpieces after torque testing, reducing the omissions and errors that occur during traditional manual testing and sorting.

[0013] 2. The workpiece torque testing machine of this utility model, according to the actual production situation, sets the testing components to at least one pair, that is, the device is at least dual-station, which can effectively adapt the sorting components to the cross-operation between multiple testing components, reduce the downtime of the sorting components due to long waiting time, and improve the sorting efficiency of the device for workpieces. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a schematic diagram of the main body of this utility model;

[0016] Figure 2 This is a schematic diagram of the frame structure in this utility model;

[0017] Figure 3 This is a schematic diagram of the torque disc in this utility model;

[0018] Figure 4 This is a schematic diagram of the torque sensor in this utility model;

[0019] Figure 5 This is a schematic diagram of the pneumatic gripper in this utility model.

[0020] In the diagram: 1. Frame; 12. Central control module; 13. Motor; 14. Torque sensor; 15. Torque disc; 16. Box; 3. X-axis slide rail module; 32. Y-axis slide rail module; 33. Z-axis slide rail module; 34. Slide plate; 35. Pneumatic gripper; 4. Slider; 42. Auxiliary slide rail. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] Specific implementation examples are given below.

[0023] Please see Figures 1 to 5 As shown in the embodiment of this utility model, a workpiece torque testing machine includes a frame 1, a testing component, and a sorting component. The testing component includes a motor 13 fixedly installed inside the frame 1. A torque sensor 14 and a torque disk 15 are sequentially arranged on the top of the motor 13. The bottom of the torque sensor 14 and the output end of the motor 13, as well as the top of the torque sensor 14 and the bottom of the torque disk 15, are fixedly connected by couplings. The outer wall of the torque sensor 14 is fixedly connected to the inner wall of the frame 1 by a mounting plate. The top of the torque disk 15 is provided with a clamp that conforms to the shape of the workpiece for... A torque is applied to the workpiece; two boxes 16 are provided on one side of the torque disk 15; a central control module 12 is fixedly installed on the outer wall of the frame 1; the central control module 12, the sorting assembly, the motor 13, and the torque sensor 14 are all signal connected; during operation, the workpiece can be placed on the torque disk 15 by a robotic arm or other conveying method. The workpiece is axially connected to the torque disk 15 by fitting into the groove on the torque disk 15. Then, the workpiece is clamped and fixed by the sorting assembly. Then, the motor 13 can be started to drive the torque disk 15, which is directly connected to the output end, to rotate. During the rotation of the torque disk 15... Torque can be applied to a fixed workpiece, and the torque sensor 14 can dynamically monitor the torque applied to the workpiece by the torque disk 15 and transmit the signal to the central control module 12 for display. The result can be divided into two types: one is that the output end of the motor 13 rotates at a certain angle and applies the rated torque to the workpiece through the torque disk 15, and the torque feedback on the central control module 12 is a smooth curve, which indicates that the workpiece is qualified. After the test, the central control module 12 can send a signal to the sorting component according to the result, so that it can transport the workpiece into the box 16 with the "OK" label. The other is that the motor 13 rotates... During the process, if the feedback from the central control module 12 is abrupt change or nonlinear distortion, it may indicate that the workpiece has broken. At this time, the central control module 12 can send a stop signal to the motor 13 and a sorting signal to the sorting component, driving the sorting component to transport the workpiece into the box 16 with the "NG" label. It is worth mentioning that the logic programming involved in the above working principle can be implemented by PLC. Through the cooperation of the central control module 12, torque sensor 14 and sorting component, automatic sorting of workpieces after torque testing can be achieved, reducing the omissions and errors that occur during traditional manual testing and sorting.

[0024] Please see Figure 3 As shown, the test components are set in at least one pair and are symmetrically distributed along the axis of frame 1. According to the actual production situation, the test components are set in at least one pair, that is, the device is at least dual-station, which can effectively adapt the sorting components to the cross-operation between multiple test components, reduce the downtime of the sorting components due to long waiting time, and improve the sorting efficiency of the device for workpieces.

[0025] Please see Figure 5 As shown, the sorting assembly includes an X-axis slide rail module 3 fixedly installed inside the frame 1; a Y-axis slide rail module 32 is slidably mounted on the bottom of the X-axis slide rail module 3; a Z-axis slide rail module 33 is slidably mounted on the Y-axis slide rail module 32; a slide plate 34 is slidably mounted on the Z-axis slide rail module 33; a pneumatic gripper 35 is fixedly mounted on the slide plate 34, and the pneumatic gripper 35 is used to clamp the workpiece; during workpiece sorting, the Y-axis slide rail module 32 can slide along the X-axis slide rail module 3 in the X direction, and the Z-axis slide rail module 33 can slide in the Z direction. The Y-axis slide rail module 33 can slide along the Y-axis slide rail module 32 in the Y direction. In order to ensure the precise stopping and starting of the Y-axis slide rail module 32 and the Z-axis slide rail module 33 during their movement, the power mechanism can be driven by a gear rack or a lead screw and nut pair. The slide plate 34 can slide along the Z-axis slide rail module 33 in the Z direction. Since the slide plate 34 only controls the feed of the pneumatic gripper 35, it can be started by a cylinder. The pneumatic gripper 35 is a mature existing technology that can perform workpiece torque testing and sorting and conveying.

[0026] Please see Figure 5 As shown, a slider 4 is fixedly connected to the top of the Y-axis slide rail module 32; an auxiliary slide rail module 42 is slidably mounted on the slider 4; the auxiliary slide rail module 42 is fixedly installed inside the frame 1; the slider 4 and the auxiliary slide rail module 42 can form an additional sliding pair to improve the constraint and stability of the Y-axis slide rail module 32 when it slides along the X-axis slide rail module 3.

[0027] Working principle: The workpiece is placed on the torque disk 15 by a robotic arm or other conveying method. The workpiece is axially connected to the torque disk 15 by fitting into the groove on the torque disk 15. Then, the workpiece is clamped and fixed by the sorting component. Next, the motor 13 can be started to drive the torque disk 15, which is directly connected to the output end, to rotate. During the rotation of the torque disk 15, torque can be applied to the fixed workpiece. The torque sensor 14 can dynamically monitor the torque applied to the workpiece by the torque disk 15 and transmit the signal to the central control module 12 to display the result. The result can be divided into two types: one is that the output end of the motor 13 rotates to a certain extent. The rated torque is applied to the workpiece via the torque disk 15, and the torque feedback on the central control module 12 is a smooth curve, indicating that the workpiece is qualified. After the test, the central control module 12 can send a signal to the sorting component based on the result, causing it to transport the workpiece to the box 16 with the "OK" label. Alternatively, if the feedback result on the central control module 12 during the rotation of the motor 13 is abrupt change, nonlinear distortion, etc., it may indicate that the workpiece has broken. In this case, the central control module 12 can send a stop signal to the motor 13 and a sorting signal to the sorting component, driving the sorting component to transport the workpiece to the box 16 with the "OK" label. Inside the box 16 marked "NG", it is worth mentioning that the logic programming involved in the above working principle can be implemented by a PLC; according to the actual production situation, the test components are set to at least one pair, that is, the device is at least dual-station, which can effectively adapt the sorting components to the cross-operation between multiple test components, reduce the downtime of the sorting components due to long waiting time, and improve the sorting efficiency of the device for workpieces; when sorting workpieces, the Y-axis slide rail module 32 can slide along the X-axis slide rail module 3 in the X direction, and the Z-axis slide rail module 33 can slide along the Y-axis slide rail module 32 in the Y direction, in order to To ensure precise stopping and starting during the movement of the Y-axis slide rail module 32 and the Z-axis slide rail module 33, the power mechanism can be driven by a gear rack or lead screw and nut pair. The slide plate 34 can slide along the Z-axis slide rail module 33 in the Z direction. Since the slide plate 34 only controls the feed of the pneumatic gripper 35, it can be started by a cylinder. The pneumatic gripper 35 is a mature existing technology that can perform workpiece torque testing and sorting and conveying. The slider 4 and the auxiliary slide rail 42 can form an additional sliding pair to improve the constraint and stability of the Y-axis slide rail module 32 when sliding along the X-axis slide rail module 3.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A workpiece torque testing machine, comprising a frame (1), a testing assembly, and a sorting assembly; characterized in that: The testing assembly includes a motor (13) fixedly installed inside the frame (1); a torque sensor (14) and a torque disk (15) are sequentially provided on the top of the motor (13); the bottom of the torque sensor (14) and the output end of the motor (13), and the top of the torque sensor (14) and the bottom of the torque disk (15) are all fixedly connected by couplings; the outer wall of the torque sensor (14) is fixedly connected to the inner wall of the frame (1) through a mounting plate; the top of the torque disk (15) is provided with a clamp that fits the shape of the workpiece and is used to apply torque to the workpiece; two material boxes (16) are provided on one side of the torque disk (15); a central control module (12) is fixedly installed on the outer wall of the frame (1); the central control module (12) and the sorting assembly, the motor (13), and the torque sensor (14) are all connected by signals.

2. The workpiece torque testing machine according to claim 1, characterized in that: The test components are set in at least one pair and are symmetrically distributed along the axis of the rack (1).

3. The workpiece torque testing machine according to claim 2, characterized in that: The sorting assembly includes an X-axis slide rail module (3) fixedly installed inside the frame (1); a Y-axis slide rail module (32) is slidably provided at the bottom of the X-axis slide rail module (3); a Z-axis slide rail module (33) is slidably provided on the Y-axis slide rail module (32); a slide plate (34) is slidably provided on the Z-axis slide rail module (33); and a pneumatic gripper (35) is fixedly installed on the slide plate (34) for clamping the workpiece.

4. A workpiece torque testing machine according to claim 3, characterized in that: The top of the Y-axis slide rail module (32) is fixedly connected to a slider (4); an auxiliary slide rail (42) is slidably provided on the slider (4); the auxiliary slide rail (42) is fixedly installed inside the frame (1).

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