Torque detection device and detection method
By using multiple slide rails and limiting structures in the lead screw testing equipment, the problem of lead screw wobbling affecting testing accuracy is solved, and higher precision torque testing is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-03-31
AI Technical Summary
In existing technologies, the lead screw vibrates during the movement of the lead screw nut, resulting in additional torque that affects the detection accuracy of the sensor.
Multiple slide rails guide the movement of the mounting frame, and the first and second loading seats limit the movement of the lead screw at both ends. The sensor is mounted on a marble mounting seat and base to reduce the impact of shaking and improve detection accuracy.
It effectively reduces the wobbling of the lead screw during the detection process, improves the sensor's detection accuracy of the lead screw torque, and enhances the equipment's versatility.
Smart Images
Figure CN121762090A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of transmission component testing technology, and in particular to a torque detection device and testing method. Background Technology
[0002] Ball screws, as high-precision transmission components characterized by high transmission efficiency, smooth transmission, and high sensitivity, are widely used in advanced equipment and devices such as CNC machine tools. Since the machining and manufacturing precision of ball screws directly affects the positioning accuracy and machining quality of CNC machine tools and other equipment, effective and reliable measurement of relevant ball screw performance is necessary. In certain specific applications, it is required to know the dynamic torque of the ball screw during operation to determine whether the ball screw can meet its working requirements in a specific environment.
[0003] In related technologies, when measuring the torque of a lead screw, a lead screw nut is fitted onto the lead screw. The lead screw is driven to rotate by a motor, so that the lead screw drives the lead screw nut to move along the axis of the lead screw. During this process, the torque of the lead screw is detected by a sensor.
[0004] However, during the process of the lead screw driving the lead screw nut to move, the lead screw nut will wobble. During the wobble, the lead screw nut will apply additional torque to the lead screw, thereby affecting the sensor's detection accuracy of the lead screw. Summary of the Invention
[0005] The purpose of this invention is to at least solve one of the technical problems existing in the prior art. A first aspect of this invention provides a torque detection device with higher detection accuracy. A second aspect of this invention also provides a detection method.
[0006] According to a first aspect of the present invention, a torque detection device includes a mounting base, a first loading base, a mounting frame, and a drive assembly. The mounting base has multiple slide rails extending along a first direction, including first and second slide rails spaced apart along a second direction. An installation area is formed between the first and second slide rails, wherein the first and second directions are spaced apart at a certain angle. The first loading base is located within the installation area and is used to load one end of a rotatable lead screw. The opposite ends of the mounting frame are slidably connected to the first and second slide rails, respectively. The mounting frame has threaded holes that allow the lead screw to pass through. The drive assembly is located on the mounting base and includes a driver and a sensor. The driver is connected to the lead screw via the sensor and is used to drive the lead screw to rotate. The sensor is used to detect the torque during the lead screw's rotation.
[0007] The torque detection device of this invention has at least the following beneficial effects: In the torque detection device of this application, the operator first rotatably mounts one end of the lead screw onto the first mounting base and inserts the lead screw into the threaded hole of the mounting bracket. Then, the driver drives the lead screw to rotate, causing the lead screw to drive the mounting bracket to slide along the first direction. During this process, the sensor detects the torque on the lead screw. Due to the arrangement of the first and second slide rails, the first and second slide rails can not only guide the mounting bracket to move along the first direction, but also limit the mounting bracket in directions other than the first direction, thereby reducing the shaking generated by the mounting bracket during its movement along the first direction. The additional torque on the lead screw from the mounting bracket is smaller, thus the detection accuracy of the sensor can be higher.
[0008] According to the torque detection device of the first aspect of the present invention, a second loading seat is provided in the mounting area. Along the first direction, the second loading seat is located on the side of the first loading seat away from the drive assembly, and the second loading seat is used for the other end of the rotatable loading screw.
[0009] According to the torque detection device of the first aspect of the present invention, the second loading seat is adjustablely disposed on the mounting base along the first direction.
[0010] According to the torque detection device of the first aspect of the present invention, the second loading seat is provided with an elongated hole extending in a first direction, and a threaded connector is slidably inserted in the elongated hole, the threaded connector being threadedly connected to the mounting seat.
[0011] According to the torque detection device of the first aspect of the present invention, the drive assembly further includes a base, which is disposed on a mounting base, and the driver and sensor are both disposed on the base.
[0012] According to the torque detection device of the first aspect of the present invention, the mounting frame includes a frame body, a nut and a transition flange. The nut has a threaded hole that allows a lead screw to pass through. The nut is mounted on the frame body through the transition flange. The opposite ends of the frame body are slidably connected to a first slide rail and a second slide rail, respectively.
[0013] The torque detection device according to the first aspect of the present invention further includes a display, which is electrically connected to the sensor and is used to display the detection result of the sensor.
[0014] According to the torque detection device of the first aspect of the present invention, it further includes a sheet metal box with a receiving cavity formed therein, the drive assembly and the mounting base are detachably connected, and the receiving cavity can accommodate the display and the drive assembly.
[0015] According to the torque detection device of the first aspect of the present invention, the mounting base is made of marble.
[0016] The detection method provided by the second aspect of the present invention, applied to the torque detection device provided by the first aspect of the present invention, includes the following steps: One end of the lead screw is mounted on the first mounting seat, and the lead screw is inserted into the threaded hole; The drive screw is rotated in the forward direction by the driver so that the mounting bracket moves closer to the first loading seat in the first direction until the mounting bracket and the first loading seat are separated by a first preset distance, and the coordinates of the first position of the mounting bracket at this moment are recorded. The drive screw is rotated in the opposite direction by the driver so that the mounting bracket moves away from the first loading seat in the first direction until the mounting bracket and the first loading seat are separated by a second preset distance, and the coordinates of the second position of the mounting bracket at this moment are recorded. The screw is continuously rotated by a driver to move the mounting bracket from the first position coordinate to the second position coordinate, and the torque of the screw is continuously detected by a sensor during the movement of the mounting bracket.
[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the structure of a torque detection device according to an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of the second loading seat of the torque detection device shown; Figure 3 for Figure 1 A schematic diagram of the drive assembly of the torque detection device shown. Figure 4 for Figure 1 A schematic diagram of the mounting bracket for the torque detection device is shown. Figure 5 for Figure 1 A schematic diagram of the structure of the first loading seat of the torque detection device shown; Figure 6 This is a flowchart of a detection method according to an embodiment of the present invention.
[0019] Figure label: Mounting base 100; mounting area 101; first slide rail 110; second slide rail 120; First loading seat 200; seat body 210; bearing 220; Mounting bracket 300; frame 310; nut 320; transition flange 330; Drive component 400; Driver 410; Sensor 420; Base 430; Second loading seat 500; elongated hole 510; threaded connector 520; Sheet metal box 600; monitor 610; dashboard 620. Detailed Implementation
[0020] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.
[0021] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.
[0022] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0023] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.
[0024] The following is for reference. Figures 1 to 5 The torque detection device of this application is described in detail.
[0025] refer to Figure 1According to an embodiment of the present invention, a torque detection device includes a mounting base 100, a first loading base 200, a mounting frame 300, and a drive assembly 400. The mounting base 100 is provided with multiple slide rails extending along a first direction. The multiple slide rails include a first slide rail 110 and a second slide rail 120 spaced apart along a second direction. An installation area 101 is formed between the first slide rail 110 and the second slide rail 120, wherein the first direction and the second direction are spaced apart at a certain angle. The first loading base 200 is disposed in the installation area 101 and is used to load one end of a rotatable lead screw. The opposite ends of the mounting frame 300 are slidably connected to the first slide rail 110 and the second slide rail 120, respectively. The mounting frame 300 is provided with threaded holes that allow the lead screw to pass through. The drive assembly 400 is disposed on the mounting base 100. The drive assembly 400 includes a driver 410 and a sensor 420. The driver 410 is drivenly connected to the lead screw through the sensor 420 and is used to drive the lead screw to rotate. The sensor 420 is used to detect the torque during the rotation of the lead screw.
[0026] Understandably, when the torque detection device of this application is in operation, the operator can rotatably mount one end of the lead screw to be tested onto the first mounting base 200 and make the lead screw pass through the threaded hole of the mounting bracket 300. Then, the driver 410 can drive the lead screw to rotate through the sensor 420. During the rotation of the lead screw, the lead screw can push the mounting bracket 300 to move in the first direction. During this process, the sensor 420 can detect the torque on the lead screw, thereby completing the detection of the lead screw.
[0027] It is understandable that the arrangement of the first slide rail 110 and the second slide rail 120, the first loading seat 200 being located in the mounting area 101 between the first slide rail 110 and the second slide rail 120, and the opposite ends of the mounting frame 300 being slidably connected to the first slide rail 110 and the second slide rail 120 respectively, allows the first slide rail 110 and the second slide rail 120 to cooperate in limiting the mounting frame 300 during the process of the lead screw pushing the mounting frame 300 to move in the first direction, so that the mounting frame 300 moves accurately in the first direction. Furthermore, the arrangement of the first slide rail 110 and the second slide rail 120 can reduce the swaying of the mounting frame 300 in other directions besides the first direction, thereby reducing the additional torque applied by the mounting frame 300 to the lead screw, and thus the torque value detected by the sensor 420 can be more accurate.
[0028] It should be noted that when the length of the lead screw to be tested is long, since the first loading seat 200 can only load one end of the lead screw, the lead screw itself is prone to large shaking during the testing process, which affects the detection accuracy of the sensor 420.
[0029] Based on the above problems, in some embodiments of the present invention, reference is made to Figure 1The torque detection device also includes a second loading seat 500 located in the installation area 101. Along the first direction, the second loading seat 500 is located on the side of the first loading seat 200 away from the drive assembly 400. The second loading seat 500 is used for the other end of the rotatable loading screw.
[0030] It is understood that by setting the second loading seat 500, when the torque detection device of this application performs torque detection on the lead screw, one end of the lead screw can be loaded on the first loading seat 200 and the other end of the lead screw can be loaded on the second loading seat 500. Thus, during the process of the drive 410 driving the lead screw to rotate, the first loading seat 200 and the second loading seat 500 can cooperate to limit the opposite ends of the lead screw, and the overall shaking of the lead screw can be reduced, thereby improving the detection accuracy of the sensor 420.
[0031] It should be noted that the length of the lead screw varies depending on the specifications.
[0032] In order to enable the torque testing equipment of this application to adapt to lead screws of different specifications, in some embodiments of the present invention, reference is made to... Figure 1 The second loading seat 500 is positioned on the mounting seat 100 in an adjustable manner along the first direction.
[0033] Furthermore, the staff can adjust the relative distance between the first loading seat 200 and the second loading seat 500 according to the length of the lead screw to be tested, so that the two ends of the lead screw can be loaded onto the first loading seat 200 and the second loading seat 500 respectively.
[0034] It is understood that the second loading seat 500 is adjustable in position along the first direction, which enables the torque testing equipment of this application to perform testing on lead screws of various lengths, thereby improving the versatility of the torque testing equipment of this application.
[0035] In a further embodiment of the invention, reference is made to... Figure 2 The second loading seat 500 is provided with an elongated hole 510 extending in the first direction. A threaded connector 520 is slidably inserted in the elongated hole 510 and is threadedly connected to the mounting seat 100.
[0036] Understandably, when the operator needs to adjust the position of the second loading seat 500, the operator can loosen the threaded connector 520. At this time, the operator can drive the second loading seat 500 to move in the first direction to adjust the position of the second loading seat 500 in the first direction. After the second loading seat 500 moves to the designated position, the operator can tighten the threaded connector 520 to lock and fix the second loading seat 500, thereby completing the position adjustment of the second loading seat 500.
[0037] To improve the stability of the second loading seat 500's position adjustment in the first direction, refer to Figure 2 The second loading seat 500 is provided with multiple elongated holes 510, and the multiple elongated holes 510 are distributed at intervals along the second direction. Each elongated hole 510 is provided with a threaded connection, and each threaded connection 520 is threadedly connected to the mounting seat 100.
[0038] It is understandable that by setting multiple elongated holes 510, and each elongated hole 510 is provided with a threaded connector 520, the second loading seat 500 can be accurately adjusted in position along the first direction, and the probability of the second loading seat 500 rotating itself during position adjustment can be reduced.
[0039] In some embodiments of the present invention, in order to enable the lead screw to be rotatably mounted on the first loading seat 200, reference is made to... Figure 5 The first loading seat 200 includes a seat body 210 and a bearing 220. The bearing 220 is mounted on the seat body 210, and the lead screw passes through the bearing 220.
[0040] It should be noted that if the driver 410 and the sensor 420 are installed independently on the mounting base 100, the straightness of the driver 410 and the sensor 420 in the first direction is poor due to the installation error. As a result, the sensor 420 will detect additional torque during detection, leading to lower detection accuracy of the sensor 420.
[0041] Based on the above problems, in some embodiments of the present invention, reference is made to Figure 1 and Figure 3 The drive assembly 400 also includes a base 430, which is mounted on the mounting base 100. The driver 410 and the sensor 420 are both mounted on the base 430.
[0042] It is understandable that by setting the base 430 and placing both the driver 410 and the sensor 420 on the base 430, the operator can install the base 430 onto the mounting base 100, thereby achieving synchronous installation of the driver 410 and the sensor 420 on the mounting base 100. This can alleviate the problem of the difference in straightness between the driver 410 and the sensor 420 in the first direction caused by the independent installation of the driver 410 and the sensor 420 on the mounting base 100, resulting in higher detection accuracy of the sensor 420 in the torque detection device of this application.
[0043] To achieve the threaded connection between the mounting bracket 300 and the lead screw, in some embodiments of the present invention, reference is made to... Figure 4The mounting bracket 300 includes a bracket body 310, a nut 320 and a transition flange 330. The nut 320 has a threaded hole that allows the lead screw to pass through. The nut 320 is mounted on the bracket body 310 through the transition flange 330. The opposite ends of the bracket body 310 are slidably connected to the first slide rail 110 and the second slide rail 120, respectively.
[0044] Understandably, since the mounting bracket 300 consists of a bracket body 310, a nut 320 and a transition flange 330, the threaded hole provided by the nut 320 can avoid the need for subsequent machining of the threaded hole on the mounting bracket 300, thus reducing the manufacturing difficulty of the mounting bracket 300.
[0045] In some embodiments of the present invention, reference is made to Figure 1 The torque detection device also includes a display 610, which is electrically connected to the sensor 420 and is used to display the detection results of the sensor 420.
[0046] Understandably, the display 610 is designed to show the detection results of the sensor 420, allowing operators to intuitively understand the torque applied to the lead screw.
[0047] In some embodiments of the present invention, reference is made to Figure 1 The torque detection device also includes a sheet metal box 600, which has a receiving cavity. The drive assembly 400 is detachably connected to the mounting base 100. The receiving cavity can accommodate the display 610 and the drive assembly 400.
[0048] Understandably, by setting up an independent sheet metal box 600, when the staff needs to move the torque testing equipment of this application, the staff can load the display 610, drive assembly 400 and mounting bracket 300 into the receiving cavity of the sheet metal box 600, so that the staff can conveniently move the torque testing equipment of this application.
[0049] To facilitate the transport of the monitor 610, further reference is provided. Figure 1 The display 610 is integrated into the sheet metal box 600.
[0050] It should be noted that the reference Figure 1The sheet metal box 600 also integrates an instrument panel 620, which is electrically connected to the sensor 420. The instrument panel 620 can display the results detected by the sensor 420 in real time, while the display 610 can display the curve of the value detected by the sensor 420 over a period of time. The instrument panel 620 and the display 610 work together to allow operators to more intuitively and comprehensively understand the torque applied to the lead screw. For example, when the torque detection device of this application tests a ball screw, the display 610 can clearly display the torque detection result of the ball screw; when the torque detection device of this application tests a trapezoidal lead screw, the display 610 can clearly display the torque detection result of the trapezoidal lead screw. At this time, operators can clearly understand the differences in friction loss and transmission efficiency between the ball screw and the trapezoidal lead screw through the results displayed on the display 610.
[0051] It should be noted that the receiving cavity of the sheet metal box 600 also houses electronic instruments such as controllers. By placing the controllers and other electronic instruments inside the receiving cavity, it is convenient to move them, and the sheet metal box 600 can protect them.
[0052] To facilitate the movement of the sheet metal box 600, a handle can also be provided on the sheet metal box 600.
[0053] In some embodiments of the present invention, the mounting base 100 is made of marble.
[0054] It is understandable that a more precise test surface can be set on the marble mounting base 100, thereby enabling the first slide rail 110 and the second slide rail 120 set on the test surface to have higher precision. After the first loading base 200 and the drive assembly 400 are installed on the test surface, the torque of the lead screw detected by the sensor 420 can be higher.
[0055] Understandably, marble has a high density, and a mounting base 100 made of marble has a greater weight for the same volume, which can improve the stability of the test.
[0056] The following is for reference. Figure 6 The detection method of the second aspect embodiment of the present invention will be described in detail.
[0057] The detection method provided in the second aspect of the present invention is applied to the torque detection device provided in the first aspect of the present invention, with reference to... Figure 6 The detection method includes, but is not limited to, the following steps: Step S100: Mount one end of the lead screw onto the first mounting base 200 and insert the lead screw into the threaded hole; Step S200: Drive the lead screw to rotate in the forward direction through the driver 410 so that the mounting bracket 300 moves closer to the first loading seat 200 in the first direction until the mounting bracket 300 and the first loading seat 200 are separated by a first preset distance, and record the first position coordinates of the mounting bracket 300 at this moment. Step S300: Drive the lead screw to rotate in the opposite direction through the driver 410 so that the mounting bracket 300 moves away from the first loading seat 200 in the first direction until the mounting bracket 300 and the first loading seat 200 are separated by a second preset distance, and record the second position coordinates of the mounting bracket 300 at this moment. In step S400, the lead screw is driven to rotate continuously by the driver 410 so that the mounting bracket 300 moves from the first position coordinate to the second position coordinate, and the torque of the lead screw during the movement of the mounting bracket 300 is continuously detected by the sensor 420.
[0058] It should be noted that in order to fully test the lead screw, the mounting bracket 300 needs to travel through as much area as possible on the lead screw under the drive of the lead screw. For lead screws of different lengths, the distance that the mounting bracket 300 needs to move is also different.
[0059] In the detection method of this application, one end of the lead screw is first mounted on the first loading seat 200 and the lead screw is inserted into the threaded hole. Then, the lead screw is driven to rotate in the forward direction by the driver 410, so that the mounting bracket 300 moves closer to the first loading seat 200 in the first direction until the mounting bracket 300 and the first loading seat 200 are separated by a first preset distance. The first position coordinate of the mounting bracket 300 at this moment is recorded. Next, the lead screw is driven to rotate in the reverse direction by the driver 410, so that the mounting bracket 300 moves away from the first loading seat 200 in the first direction until the mounting bracket 300 and the first loading seat 200 are separated by a second preset distance. The second position coordinate of the mounting bracket 300 at this moment is recorded. Immediately afterwards, the lead screw is driven to rotate continuously by the driver 410, so that the mounting bracket 300 moves from the first position coordinate to the second position coordinate. The torque of the lead screw during the movement of the mounting bracket 300 is continuously detected by the sensor 420. When dealing with different lead screws, the corresponding first and second position coordinates can be obtained based on the lead screw's length. Then, during lead screw testing, the lead screw drives the mounting bracket 300 to move from the first position coordinate to the second position coordinate, allowing the mounting bracket 300 to traverse a larger area of the lead screw for thorough testing. Furthermore, using the testing method of this application, the distance the mounting bracket 300 needs to move can be determined based on the actual length of the lead screw, enabling the testing method of this application to accurately complete torque testing of various lead screws.
[0060] It should be noted that when an aging test is required on the lead screw, the torque detection device of this application can drive the lead screw to rotate by acquiring the first and second position coordinates corresponding to the lead screw, so that the mounting bracket 300 reciprocates between the first and second position coordinates. By detecting the change in the lead screw torque, the wear condition of the lead screw can be indirectly understood. For example, when dealing with a ball screw, as the number of reciprocating motions of the mounting bracket 300 between the first and second position coordinates increases, the wear between the ball and the lead screw intensifies. Correspondingly, the torque detected by the torque detection device also increases for the component. Thus, by observing the change in the lead screw torque, the operator can inversely determine the wear condition between the ball and the lead screw, and thereby understand the service life of the lead screw.
[0061] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A torque detection apparatus characterized by comprising: The utility model relates to a kind of installation seat (100), which is provided with a plurality of slide rails extending along a first direction, and the plurality of slide rails include first slide rails (110) and second slide rails (120) spaced apart along a second direction, and the first slide rails (110) and the second slide rails (120) form an installation area (101) therebetween, wherein the first direction and the second direction are arranged at an angle. A first mounting seat (200) is provided in the installation area (101) and is used to rotatably mount one end of a lead screw. A mounting bracket (300) is slidably connected to the first slide rails (110) and the second slide rails (120) at opposite ends thereof, and the mounting bracket (300) is provided with a threaded hole allowing the lead screw to pass therethrough. A driving assembly (400) is provided on the mounting seat (100), and the driving assembly (400) includes a driver (410) and a sensor (420). The driver (410) is drivingly connected to the lead screw through the sensor (420) and is used to drive the lead screw to rotate. The sensor (420) is used to detect the torque during rotation of the lead screw. The utility model further includes a second mounting seat (500) provided in the installation area (101). Along the first direction, the second mounting seat (500) is provided on a side of the first mounting seat (200) away from the driving assembly (400), and the second mounting seat (500) is used to rotatably mount the other end of the lead screw.
2. The torque detection apparatus according to claim 1, characterized by, The second mounting seat (500) is adjustably provided on the mounting seat (100) along the first direction.
3. The torque detection apparatus according to claim 2, characterized by, The second mounting seat (500) is provided with an elongated hole (510) extending along the first direction, and a threaded connecting piece (520) is slidably provided in the elongated hole (510). The threaded connecting piece (520) is threadedly connected to the mounting seat (100).
4. The torque detection apparatus according to claim 3, characterized by The driving assembly (400) further includes a base (430) provided on the mounting seat (100), and the driver (410) and the sensor (420) are both provided on the base (430).
5. The torque detection apparatus according to claim 1, characterized by, The mounting bracket (300) includes a bracket body (310), a nut (320), and a transition flange (330). The nut (320) has the threaded hole allowing the lead screw to pass therethrough. The nut (320) is provided on the bracket body (310) through the transition flange (330), and opposite ends of the bracket body (310) are slidably connected to the first slide rails (110) and the second slide rails (120), respectively.
6. The torque detection apparatus according to claim 1, characterized by The utility model further includes a display (610) electrically connected to the sensor (420) and used to display the detection result of the sensor (420).
7. The torque detection apparatus according to claim 1, characterized by, The utility model further includes a sheet metal box (600) having an accommodating cavity formed therein. The driving assembly (400) and the mounting seat (100) are detachably connected, and the accommodating cavity can accommodate the display (610) and the driving assembly (400).
8. The torque detection apparatus according to claim 7, characterized by 9. The torque detection apparatus according to claim 1, characterized by, The mounting seat (100) is made of marble.
10. A method of detection, characterized in that, The detection method is applied to the torque detection device according to any one of claims 1 to 9, and comprises the following steps. One end of the lead screw is loaded on the first loading seat (200), and the lead screw is arranged in the threaded hole; The lead screw is driven to rotate forward by the driver (410), so that the mounting frame (300) approaches the first loading seat (200) in the first direction until the mounting frame (300) and the first loading seat (200) are separated by a first preset distance, and the first position coordinate of the mounting frame (300) at this moment is recorded; The lead screw is driven to rotate reversely by the driver (410), so that the mounting frame (300) moves away from the first loading seat (200) in the first direction until the mounting frame (300) and the first loading seat (200) are separated by a second preset distance, and the second position coordinate of the mounting frame (300) at this moment is recorded; The lead screw is continuously driven to rotate by the driver (410), so that the mounting frame (300) moves from the first position coordinate to the second position coordinate, and the torque of the lead screw during the movement of the mounting frame (300) is continuously detected by the sensor (420).