Force measuring structure and force measuring device for tapered tubes

Abstract

This invention provides a force-measuring structure and device for tapered tubes, including a mounting component, a force-measuring component, a connecting component, and a force-transmitting component. The mounting component has a mounting cavity on one side; the force-measuring component is installed within the mounting cavity; one end of the connecting component is fixed within the mounting cavity, and the other end of the connecting component has a first external thread for threaded connection with a nut on the tapered tube; the connecting component has a mounting through hole along its axial direction; the force-transmitting component passes through the mounting through hole, one end of the force-transmitting component is connected to the force-measuring component, and the other end of the force-transmitting component is used for abutting engagement with one end of the tapered tube. The force-measuring structure in this application can accurately collect the force on the sealing surface between the nut and the tapered tube, verify the difference between the actual product and the finite element design, and correct relevant design parameters, ensuring product development quality, improving development efficiency, shortening the development cycle, and can also be applied to failure analysis.

Description

Technical Field

[0001] This invention relates to the field of sealing force measuring equipment, and in particular to a force measuring structure and device for tapered tubes. Background Technology

[0002] Car engine piping typically uses tapered tubes for connection. The tapered tube is tightened by an outer nut pressing against the inner and outer conical surfaces. The axial force generated at the contact point between the two surfaces during the tightening process is transmitted to the sealing surface, which undergoes plastic deformation, forming an annular sealing band to achieve a seal.

[0003] In the development of tapered tubes, the finite element method is typically used for tapered surface angle design and force analysis. Related calculations then generate manufacturing parameters, leading to discrepancies between the design and actual production results. If production activities are based solely on the finite element results, the manufactured product will have a certain probability of poor sealing, potentially causing serious accidents if used in high-pressure fuel lines in automobiles or in aviation equipment. To further ensure the reliability of design specifications, existing methods for measuring sealing forces involve repeated sealing tests during trial production. Therefore, existing methods for measuring sealing forces are cumbersome, complex, time-consuming, inefficient, and unfavorable for subsequent failure analysis and mitigation. Summary of the Invention

[0004] Therefore, it is necessary to provide a force measuring structure and device for tapered tubes, addressing the problems of existing sealing force measurement methods being cumbersome, complex, time-consuming, inefficient, and unfavorable for subsequent failure analysis and countermeasures.

[0005] The technical solution is as follows:

[0006] On the one hand, a force-measuring structure for a tapered tube is provided, comprising:

[0007] The mounting component has a mounting cavity on one side;

[0008] A force measuring element is installed inside the mounting cavity;

[0009] A connector, one end of which is fixed within the mounting cavity, and the other end of which is provided with a first external thread for threaded connection with a nut on a tapered tube; the connector also has a mounting through hole along its axial direction.

[0010] A force transmission component is provided, which passes through the mounting through hole. One end of the force transmission component is connected to the force measuring component, and the other end of the force transmission component is used to abut against one end of the tapered tube.

[0011] In the force-measuring structure for tapered tubes described in the above embodiments, the nut on the tapered tube is threadedly connected to the first external thread on the connector, allowing the nut to move one end of the tapered tube. This, in turn, allows the end of the tapered tube to push the force transmission component, thereby transmitting the sealing force between the nut and the tapered tube to the force-measuring component for measurement. Compared to existing sealing force measurement methods, the force-measuring structure for tapered tubes in this application can accurately collect the sealing surface force between the nut and the tapered tube, verify the difference between the actual product and the finite element design, and correct relevant design parameters, ensuring product development quality, improving development efficiency, shortening the development cycle, and can also be applied to failure analysis.

[0012] In one embodiment, the mounting component includes a detachably connected first body and a second body. The first body has a first threaded hole on one side, and the connector has a second external thread at the end away from the first external thread. The second external thread is threadedly connected to the first threaded hole. The first body has a first groove on the side away from the first threaded hole, and the bottom wall of the first groove has a connecting hole communicating with the first threaded hole. The second body has a second groove on one side. The first groove and the second groove cooperate to form a fixed space. The force measuring component is fixed in the fixed space. The first threaded hole, the connecting hole, and the fixed space cooperate to form the mounting cavity.

[0013] In one embodiment, the outer wall of the force transmission member is provided with a lubricant.

[0014] On the other hand, a force measuring device is provided, including a base, a universal structure, and the force measuring structure for the tapered tube. There are two force measuring structures for the tapered tube. The two mounting parts are respectively provided with a first connecting part and a second connecting part. The first connecting part is slidably engaged with the base along a first direction, and the second connecting part is connected to the universal structure. The universal structure is slidably engaged with the base along a second direction. The first direction and the second direction are set at an angle.

[0015] In the force measuring device described above, the relative positions of the two force measuring structures are adjusted according to the shape and size of the tapered tube, so that the nuts at both ends of the tapered tube can be connected to the two force measuring structures, thus achieving complete real assembly. The force measuring device in this application can measure the sealing force of tapered tubes with one end and both ends having tapered surfaces. It can also continuously collect the sealing surface force during assembly using a data acquisition instrument, monitor the changes in force in real time, verify the differences between the actual product and the finite element design, and correct relevant design parameters to ensure product development quality, improve development efficiency, shorten the development cycle, and can also be applied to failure analysis.

[0016] In one embodiment, the force measuring device further includes a first slider and a second slider. The base is provided with a first groove extending in a first direction and a second groove extending in a second direction. The first slider is slidably engaged with the first groove. The first connecting part is connected to the first slider. The second slider is slidably engaged with the second groove. The universal structure is mounted on the second slider.

[0017] In one embodiment, the first slider is provided with a third slide groove arranged in a vertical direction, the first connecting part slides in cooperation with the third slide groove, and the first slide groove, the second slide groove and the third slide groove are arranged perpendicular to each other in pairs.

[0018] In one embodiment, the second slider is provided with a second threaded hole along the extension direction of the second groove, and the force measuring device further includes a screw and a handwheel. The handwheel is motive-connected to one end of the screw, the screw passes through the second threaded hole and is threadedly engaged with the second threaded hole, and the screw is rotatably connected to the base.

[0019] In one embodiment, the force measuring device further includes an auxiliary support structure that slides with the base and is used to assist in supporting the tapered tube.

[0020] In one embodiment, the force measuring device further includes two third sliders, the base is provided with two fourth sliding grooves extending along the second direction, the two fourth sliding grooves are spaced apart on both sides of the second sliding groove, the two third sliders are slidably engaged with the two fourth sliding grooves, each of the two third sliders is provided with a fifth sliding groove arranged in the vertical direction, and the two auxiliary support structures are slidably engaged with the two fifth sliding grooves.

[0021] In one embodiment, the auxiliary support structure includes a fourth slider, a crossbar, and a rotating head. The fourth slider is slidably engaged with the fifth slide groove, the crossbar is slidably engaged with the fourth slider, and the rotating head is rotatably disposed at one end of the crossbar. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of a force measuring structure for a tapered tube according to one embodiment.

[0025] Figure 2 for Figure 1 A cross-sectional view of a force-measuring structure for a tapered tube.

[0026] Figure 3 This is a schematic diagram of a force measuring structure for a tapered tube, according to another embodiment.

[0027] Figure 4 This is a schematic diagram of the force measuring device according to one embodiment.

[0028] Figure 5 for Figure 4 A schematic diagram of the structure of the central base, the first slider, and the second slider.

[0029] Figure 6 for Figure 4 A schematic diagram of the central universal joint and the second slider.

[0030] Figure 7 for Figure 4 A schematic diagram of the central base, the third slider, and the auxiliary support structure.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10. Force measuring device; 100. Force measuring structure; 110. Mounting component; 111. Mounting cavity; 112. First body; 1121. First threaded hole; 1122. First groove; 1123. Connecting hole; 113. Second body; 1131. Second groove; 114. First connecting part; 115. Second connecting part; 120. Force measuring element; 130. Connecting component; 131. Mounting through hole; 140. Force transmission element; 200. Base; 210. First sliding groove; 2 20. Second slide rail; 230. Fourth slide rail; 300. Universal structure; 310. Mounting base; 320. Rotating base; 330. Rotating rod; 340. Rotating platform; 410. First slider; 411. Third slide rail; 420. Second slider; 421. Second threaded hole; 430. Third slider; 431. Fifth slide rail; 510. Screw; 520. Handwheel; 600. Auxiliary support structure; 610. Fourth slider; 620. Crossbar; 630. Rotating head. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] like Figure 1 and Figure 2 As shown, in one embodiment, a force-measuring structure 100 for a tapered tube is provided, including a mounting member 110, a force-measuring member 120, a connecting member 130, and a force-transmitting member 140. The mounting member 110 has a mounting cavity 111 on one side; the force-measuring member 120 is installed in the mounting cavity 111; one end of the connecting member 130 is fixed in the mounting cavity 111, and the other end of the connecting member 130 has a first external thread for threaded connection with a nut on the tapered tube; the connecting member 130 has a mounting through hole 131 along its axial direction; the force-transmitting member 140 passes through the mounting through hole 131, one end of the force-transmitting member 140 is connected to the force-measuring member 120, and the other end of the force-transmitting member 140 is used for abutting engagement with one end of the tapered tube.

[0035] In the force measuring structure 100 for the tapered tube described in the above embodiments, during use, the nut on the tapered tube is threadedly connected to the first external thread on the connector 130, allowing the nut to move one end of the tapered tube. This, in turn, allows the one end of the tapered tube to push the force transmission component 140, thereby transmitting the sealing force between the nut and the tapered tube to the force measuring component 120 for measurement. Compared to existing sealing force measurement methods, the force measuring structure 100 in this application can accurately collect the sealing surface force between the nut and the tapered tube, verify the difference between the actual product and the finite element design, and correct relevant design parameters, ensuring product development quality, improving development efficiency, shortening the development cycle, and can also be applied to failure analysis.

[0036] The mounting component 110 can be a mounting base, mounting block, or other mounting structure. One end of the connector 130 is fixed inside the mounting cavity 111 and can be connected by plugging, snapping, screwing, or other methods.

[0037] like Figure 1 and Figure 2As shown, the mounting component 110 further includes a detachably connected first body 112 and a second body 113. The first body 112 has a first threaded hole 1121 on one side, and the connector 130 has a second external thread at the end away from the first external thread, which is threadedly connected to the first threaded hole 1121. The first body 112 has a first groove 1122 on the side away from the first threaded hole 1121, and the bottom wall of the first groove 1122 has a connecting hole 1123 communicating with the first threaded hole 1121. The second body 113 has a second groove 1131 on one side. The first groove 1122 and the second groove 1131 cooperate to form a fixed space, within which the force measuring component 120 is fixed. The first threaded hole 1121, the connecting hole 1123, and the fixed space cooperate to form a mounting cavity 111. This improves the ease of installation of the force measuring structure 100.

[0038] Specifically, in this embodiment, the force measuring component 120 can be a Tokyo Shokki CLS type pressure sensor, connected to a Dewesoft data acquisition instrument to establish a force acquisition structure. The connecting component 130 can be a double-ended bolt. The size of the double-ended bolt is designed to match the actual action of the tapered tube on the component, and the nut tightens the inner and outer tapered surfaces to achieve equal assembly levels. The force transmission component 140 can be equipped with a force transmission mandrel.

[0039] Optionally, a lubricant is provided on the outer wall of the force transmission component 140. In this way, the lubricant can reduce the friction between the force transmission component 140 and the connecting component 130, avoid the influence of the friction coefficient during the movement of the force transmission component 140, and prevent distortion of the force transmission caused by the friction coefficient, thereby improving the reliability and accuracy of the force measuring structure 100.

[0040] The lubricating component can be lubricating oil, engine oil, or other lubricating structures. Specifically, in this embodiment, engine oil is applied to the outer wall of the force transmission component 140, and the tension of the engine oil supports the force transmission component 140 to reduce friction. At the same time, the size and clearance design ensures that the movement clearance of the force transmission component 140 is controlled within 0.1mm. Meanwhile, the force transmission component 140 compacts the force measuring component 120 to ensure that the overall clearance is controlled within 0.1mm, ensuring that the force transmission between the tapered tube and the nut is real and lossless.

[0041] like Figure 1 , Figure 3 and Figure 4 As shown, in one embodiment, a force measuring device 10 is provided, including a base 200, a universal structure 300, and a force measuring structure 100 for a tapered tube as described in any of the above embodiments. There are two force measuring structures 100 for the tapered tube, and the two mounting members 110 are respectively provided with a first connecting portion 114 and a second connecting portion 115. The first connecting portion 114 and the base 200 are connected along a first direction (e.g., ...). Figure 4(As shown in direction A) Sliding fit, the second connecting part 115 is connected to the universal structure 300, and the universal structure 300 and the base 200 are connected along the second direction (as shown in direction A). Figure 4 (As shown in direction B) Sliding fit, with the first direction and the second direction set at an angle.

[0042] In the above embodiments, the force measuring device 10 adjusts the relative position between the two force measuring structures 100 according to the shape and size of the tapered tube, so that the nuts at both ends of the tapered tube can be connected to the two force measuring structures 100, thus achieving complete assembly. The force measuring device 10 in this application can measure the sealing force of tapered tubes with one end and both ends having tapered surfaces. It can also continuously collect the sealing surface force during assembly using a data acquisition instrument, monitor the changes in force in real time, verify the differences between the actual product and the finite element design, and correct relevant design parameters to ensure product development quality, improve development efficiency, shorten the development cycle, and can also be applied to failure analysis.

[0043] The angle between the first direction and the second direction can be flexibly adjusted according to actual practical needs.

[0044] like Figure 4 and Figure 5 As shown, the force measuring device 10 further includes a first slider 410 and a second slider 420. The base 200 is provided with a first groove 210 extending in a first direction and a second groove 220 extending in a second direction. The first slider 410 is slidably engaged with the first groove 210, the first connecting part 114 is connected to the first slider 410, and the second slider 420 is slidably engaged with the second groove 220. The universal structure 300 is mounted on the second slider 420. This improves the ease of assembly and the reliability of position adjustment of the force measuring device 10. Specifically, in this embodiment, both the first groove 210 and the second groove 220 can be configured as dovetail grooves, and both the first slider 410 and the second slider 420 can be configured as trapezoidal blocks.

[0045] like Figure 4 and Figure 5 As shown, optionally, the first slider 410 is provided with a third slide groove 411 arranged vertically, and the first connecting part 114 is slidably engaged with the third slide groove 411. The first slide groove 210, the second slide groove 220, and the third slide groove 411 are arranged perpendicularly to each other in pairs. In this way, the relative position between the two force measuring structures 100 can be adjusted and controlled in three directions. Specifically, in this embodiment, the first slider 410 is provided with an extension, and the third slide groove 411 is provided on the extension.

[0046] like Figure 4 , Figure 5 and Figure 6As shown, in one embodiment, the second slider 420 is provided with a second threaded hole 421 arranged along the extension direction of the second slide groove 220. The force measuring device 10 also includes a screw 510 and a handwheel 520. The handwheel 520 is operatively connected to one end of the screw 510. The screw 510 passes through the second threaded hole 421 and is threadedly engaged with the second threaded hole 421. The screw 510 is rotatably connected to the base 200. The base 200 is provided with a first slide rail scale corresponding to the first slider 410 and a second slide rail scale corresponding to the second slider 420. The extension is provided with a third slide rail scale corresponding to the first connecting part 114. Thus, one rotation of the handwheel 520 corresponds to one tooth distance of the screw 510, realizing precise control and visualization of the position of the force measuring structure 100.

[0047] like Figure 4 , Figure 5 and Figure 6 As shown, optionally, the universal structure 300 includes a mounting base 310, a rotating base 320, a rotating rod 330, and a rotating platform 340. The mounting base 310 is fixed to the top of the second slider 420. The bottom of the rotating base 320 is rotatably connected to the top of the mounting base 310. The top of the rotating base 320 is rotatably connected to one end of the rotating rod 330, and the other end of the rotating rod 330 is rotatably connected to the rotating platform 340. The second connecting part 115 is mounted on the rotating platform 340. In this way, the relative position between the two force measuring structures 100 can be adjusted and controlled in three directions.

[0048] like Figure 4 and Figure 7 As shown, in one embodiment, the force measuring device 10 further includes an auxiliary support structure 600, which is slidably engaged with the base 200 and used to assist in supporting the tapered tube. Thus, the auxiliary support structure 600 can provide auxiliary support for the tapered tube, preventing excessive installation stress on the tapered tube and improving the reliability of the force measuring device 10.

[0049] The number of auxiliary support structures 600 can be flexibly adjusted according to actual practical needs.

[0050] like Figure 4 and Figure 7As shown, the force measuring device 10 further includes two third sliders 430. The base 200 is provided with two fourth sliding grooves 230 extending along the second direction. The two fourth sliding grooves 230 are spaced apart on both sides of the second sliding groove 220. The two third sliders 430 slide in corresponding engagement with the two fourth sliding grooves 230. Each of the two third sliders 430 is provided with a fifth sliding groove 431 arranged in the vertical direction. The two auxiliary support structures 600 slide in corresponding engagement with the two fifth sliding grooves 431. In this way, the force measuring device 10 can provide auxiliary support for both tapered tubes with tapered surfaces at one end and tapered tubes with tapered surfaces at both ends, making the force measuring device 10 applicable to tapered tubes of different installation positions and specifications, thus improving the practicality of the force measuring device 10.

[0051] like Figure 7 As shown, optionally, the auxiliary support structure 600 includes a fourth slider 610, a crossbar 620, and a rotating head 630. The fourth slider 610 is slidably engaged with a fifth slide groove 431, the crossbar 620 is slidably engaged with the fourth slider 610, and the rotating head 630 is rotatably mounted on one end of the crossbar 620. Thus, the auxiliary support structure 600 can achieve precise control of displacement in three directions.

[0052] Specifically, in this embodiment, the displacement and locking between the first slider 410 and the first slide groove 210, between the first connecting part 114 and the third slide groove 411, and between the third slider 430 and the fourth slide groove 230 can all be precisely controlled by the screw 510 and the handwheel 520, which will not be described in detail here.

[0053] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0054] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0056] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0058] It should also be understood that, in interpreting the connection or positional relationships of components, although not explicitly described, connection and positional relationships are interpreted to include a range of error, which should be within the acceptable deviation range of a specific value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A force-measuring structure for a tapered tube, characterized in that, include: The mounting component has a mounting cavity on one side; A force measuring element is installed inside the mounting cavity; A connector, one end of which is fixed within the mounting cavity, and the other end of which is provided with a first external thread for threaded connection with a nut on a tapered tube; the connector also has a mounting through hole along its axial direction. A force transmission component is provided, which passes through the mounting through hole. One end of the force transmission component is connected to the force measuring component, and the other end of the force transmission component is used to abut against one end of the tapered tube. The force transmission component is configured as a force transmission mandrel.

2. The force measuring structure for a tapered tube according to claim 1, characterized in that, The mounting component includes a detachably connected first body and a second body. The first body has a first threaded hole on one side, and the connector has a second external thread at the end away from the first external thread. The second external thread is threadedly connected to the first threaded hole. The first body has a first groove on the side away from the first threaded hole, and the bottom wall of the first groove has a connecting hole communicating with the first threaded hole. The second body has a second groove on one side. The first groove and the second groove cooperate to form a fixed space. The force measuring component is fixed in the fixed space. The first threaded hole, the connecting hole, and the fixed space cooperate to form the mounting cavity.

3. The force measuring structure for a tapered tube according to claim 1, characterized in that, The outer wall of the force transmission component is provided with a lubricant.

4. A force measuring device, characterized in that, The device includes a base, a universal joint, and a force measuring structure for a tapered tube as described in any one of claims 1 to 3. The force measuring structure for the tapered tube consists of two parts, each of which has a first connecting part and a second connecting part. The first connecting part is slidably engaged with the base along a first direction, and the second connecting part is connected to the universal joint. The universal joint is slidably engaged with the base along a second direction, and the first direction and the second direction are set at an angle.

5. The force measuring device according to claim 4, characterized in that, The force measuring device further includes a first slider and a second slider. The base is provided with a first groove extending in a first direction and a second groove extending in a second direction. The first slider is slidably engaged with the first groove. The first connecting part is connected to the first slider. The second slider is slidably engaged with the second groove. The universal structure is mounted on the second slider.

6. The force measuring device according to claim 5, characterized in that, The first slider is provided with a third slide groove arranged in a vertical direction, and the first connecting part slides in cooperation with the third slide groove. The first slide groove, the second slide groove and the third slide groove are arranged perpendicular to each other in pairs.

7. The force measuring device according to claim 5, characterized in that, The second slider is provided with a second threaded hole along the extension direction of the second slide groove. The force measuring device also includes a screw and a handwheel. The handwheel is connected to one end of the screw. The screw passes through the second threaded hole and is threadedly engaged with the second threaded hole. The screw is rotatably connected to the base.

8. The force measuring device according to any one of claims 5 to 7, characterized in that, The force measuring device also includes an auxiliary support structure, which slides with the base and is used to assist in supporting the tapered tube.

9. The force measuring device according to claim 8, characterized in that, The force measuring device further includes two third sliders. The base is provided with two fourth sliding grooves extending along the second direction. The two fourth sliding grooves are spaced apart on both sides of the second sliding groove. The two third sliders are slidably engaged with the two fourth sliding grooves. Each of the two third sliders is provided with a fifth sliding groove arranged in the vertical direction. The two auxiliary support structures are slidably engaged with the two fifth sliding grooves.

10. The force measuring device according to claim 9, characterized in that, The auxiliary support structure includes a fourth slider, a crossbar, and a rotating head. The fourth slider is slidably engaged with the fifth slide groove, the crossbar is slidably engaged with the fourth slider, and the rotating head is rotatably disposed at one end of the crossbar.

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