Automatic torsion adjusting equipment of rotating shaft module

Abstract

The invention discloses automatic torsion adjusting equipment for a rotating shaft module. The automatic torsion adjusting equipment comprises a rack; the movable clamping seat is provided with a rotating base, a radial follow-up seat, a tangential follow-up seat and a movable clamp, and the movable clamp is used for clamping the left rotating arm of the rotating shaft module to be tested; the fixed clamping seat is provided with a fixed clamp used for clamping a right rotating arm of the rotating shaft module to be tested; the torsion adjusting seat is provided with a torsion adjusting arm, and when the torsion adjusting arm moves to the first position, the torsion adjusting arm and the torsion adjusting piece are locked; when the torsion adjusting arm moves to the second position, the torsion adjusting arm and the torsion adjusting piece are not locked; the torsion test sensor assembly is configured to measure a torsion value A when the left rotating arm rotates relative to the right rotating arm when the torsion adjusting arm moves to the second position; and the control system is used for receiving and calculating the torsion value A, and controlling the adjusting arm to adjust the torsion adjusting piece so as to change the torsion value between the left rotating arm and the right rotating arm when the torsion value A is larger than a set range value or smaller than the set range value.

Description

Technical Field

[0001] The present application relates to an automatic torque adjustment device for a rotating shaft module. Background Art

[0002] The hinge module, also known as a rotating hub, damping hinge or damping shaft core, is a connecting element that can provide mutual rotation function. It is mainly used between rotating parts and a base. At present, it is widely used in various digital products and electronic devices, such as laptops. The mutual rotation function of the hinge device can realize the opening and closing function between the base and the display screen of the laptop to adjust the required angle of the laptop relative to the human body.

[0003] At present, the existing shaft products generally include multiple shaft cores, left and right rotating arms sleeved on the left and right shaft cores, wherein a damping element is usually arranged between the left and right rotating arms and the shaft core to generate damping in the rotation of the left and right rotating arms relative to the shaft core. After the shaft products are assembled, they need to be tested for torque to ensure that the torque of the shaft structure is within the preset range. If the torque exceeds the set range, it needs to be adjusted. In the prior art, this process is completed manually, that is, one end of the shaft (left rotating arm) is stuck in the torque sensor, the other end of the shaft (right rotating arm) is turned, and the data of the torque tester is manually read. If the torque does not meet the set value (exceeds or is insufficient), it is necessary to manually tighten or loosen the fasteners on the shaft product with a wrench to adjust the torque, and this cycle is repeated many times, and finally the torque of the shaft product is adjusted to the set value range. Therefore, the efficiency is low, and it is all manually turned, it is difficult to control the plate movement angle, and multiple adjustments are required. Generally, 5-8 adjustments are required to achieve the final shaft product torque compliance. In the manual operation, the damage rate of the shaft product will also increase. Summary of the invention

[0004] The purpose of the present application is to provide an automatic torque adjustment device for a shaft module, which can improve the assembly efficiency and yield of the shaft module.

[0005] To achieve the above objectives, this application provides the following technical solutions: A torque automatic adjustment device for a rotating shaft module, the rotating shaft module at least comprising a rotating shaft member and a left rotating arm, a right rotating arm and a torque adjustment member rotatably coupled to the rotating shaft member, and configured to drive the torque adjustment member to adjust the rotational torque value between the left rotating arm and the right rotating arm, comprising: frame; The dynamic clamp seat is installed on the frame and is provided with a rotating base, a radial follower seat arranged on the rotating base with a radial sliding group along the rotating direction of the rotating base, a tangential follower seat arranged on the radial follower seat with a sliding group along the tangential direction of the rotating direction of the rotating base, and a dynamic clamp fixed on the tangential follower seat, wherein the dynamic clamp is used to clamp the left rotating arm; A fixed clamp seat, installed on the frame, provided with a fixed clamp for clamping the right rotating arm; When the rotating base rotates, the radial follower seat, the tangential follower seat and the movable clamp rotate synchronously with the rotating base, thereby synchronously driving the left rotating arm to rotate relative to the right rotating arm; The torque adjustment seat is installed on the frame and is provided with a torque adjustment arm that can move along a set direction. When the torque adjustment arm moves to a first position, it can be locked with the torque adjustment member; when the torque adjustment arm moves to a second position, it is not locked with the torque adjustment member; The torque test sensor assembly is mounted on the frame and is configured to measure the torque value A when the dynamic clamp seat drives the left rotating arm to rotate relative to the right rotating arm when the torque adjustment arm moves to the second position; The control system receives the torque value A measured by the torque test sensor assembly and performs calculations. When the torque value A is greater than a set range value or when the torque value A is less than a set range value, the control arm is controlled to move to a first position and the torque adjustment member is adjusted to change the torque value between the left rotating arm and the right rotating arm.

[0006] Furthermore, when the rotating base rotates and drives the left rotating arm to rotate relative to the right rotating arm, the radial follower seat can slide relative to the left rotating arm.

[0007] Furthermore, the torque adjustment member is a nut threadedly locked on the rotating shaft, the torque adjustment arm can move along the rotation axis of the nut, and one end of the torque adjustment arm is formed as a limiting structure that can be sleeved on the outer periphery of the nut to achieve synchronous rotation.

[0008] Furthermore, the control system is set with N torque value intervals, each torque value interval corresponds to an adjustment signal, and each adjustment signal corresponds to controlling the control adjustment arm to adjust a set action on the torque adjustment member.

[0009] Furthermore, the number of torque value intervals in the N gear torque value interval that are greater than the set range value is not less than five and continuous, and / or the number of torque value intervals in the N gear torque value interval that are less than the set range value is not less than five and continuous.

[0010] Further, the control adjustment arm drives the torque adjustment member to rotate relative to the rotating shaft member to change the torque value between the left rotating arm and the right rotating arm; The setting action is that the control adjustment arm drives the torque adjustment member to rotate relative to the rotating shaft member.

[0011] Furthermore, the rotating base comprises: A turntable, wherein the turntable is provided with scale lines; A fixing seat, which is locked on the rotating disk member by a locking member; The fixing seat can be adjusted and fixed to different positions of the rotating disk member along the track of the scale line by locking and unlocking the locking member.

[0012] Furthermore, it also includes: The guiding jaw assembly is installed on the frame and includes two jaw rods. A guiding groove is formed at one end of each jaw rod. The two jaw rods can rotate with the other end as the axis and realize relative opening or closing. The guiding grooves of the two jaw rods are arranged relatively to each other and are configured to guide the lower end of the torque adjustment member that clamps the shaft module when in a closed state, so that the torque adjustment member is aligned with the control adjustment arm.

[0013] Further, the guide jaw assembly sliding group is arranged on the first track section on the frame; The torque adjustment seat sliding group is arranged on the second track on the frame; The sliding movement of the guide clamping jaw assembly relative to the frame is independent of the sliding movement of the torque adjustment seat relative to the frame.

[0014] Furthermore, the rotation axis of the rotating base is coaxial with the axis of the rotating shaft.

[0015] Compared with the prior art, the beneficial effect of the present application is that it can improve the assembly efficiency and yield of the shaft module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of a torque automatic adjustment device of a rotating shaft module disclosed in the present application, and also shows a state diagram of a rotating shaft module in cooperation therewith.

[0017] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the moving clamp and the fixed clamp of the device shown in the figure being assembled on the frame, and a state diagram of the device being matched with a rotating shaft module is also shown. Figure 2 The torque adjustment seat and the guide jaw assembly are not shown.

[0018] Figure 3 yes Figure 2 A magnified view of the structure within the dashed box.

[0019] Figure 4 This is an example of a shaft module that can be used to adjust the torque of the device of this application.

[0020] Figure 5 yes Figure 1 A three-dimensional schematic diagram of the torque adjustment seat, fixed clamp seat and guide clamp assembly of the device shown in the figure when assembled on the frame, and a state diagram of the state of a rotating shaft module is also shown. Figure 5The complete dynamic clamp seat is not shown in the figure, only the turntable part of the dynamic clamp seat is seen.

[0021] Figure 6 yes Figure 5 A magnified view of the structure within the dashed box. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] Please refer to Figures 1 to 6 As shown, the torque automatic adjustment device of the shaft module disclosed in the present application is mainly used for torque testing and automatic adjustment of the shaft module. The applicable shaft module can be as follows Figure 4 The shaft module 1 mainly comprises a shaft member 11 and a left rotating arm 12, a right rotating arm 13 and a torque adjusting member 14 which are rotatably coupled to the shaft member 11. The relative rotation between the left rotating arm 12 and the right rotating arm 13 forms a damping (there is an initial rotation torque value), and is configured to drive the torque adjusting member (14) to adjust the rotation torque value between the left rotating arm (12) and the right rotating arm (13).

[0024] Specifically, the torque automatic adjustment device of the rotating shaft module includes: a frame (unnumbered), a dynamic clamp seat 2 installed on the frame, a fixed clamp seat 3, a torque adjustment seat 4, a guide clamping jaw assembly 5, a torque test sensor assembly (not shown) and a control system. The dynamic clamp seat is provided with a rotating base 21, a radial follower seat 22 arranged on the rotating base 21 along the radial sliding group of the rotating base 21, a tangential follower seat 23 arranged on the radial follower seat 22 along the tangential direction sliding group of the rotating base 21, and a dynamic clamp 24 fixed on the tangential follower seat 23. The dynamic clamp 24 is used to clamp the left rotating arm 12. In the present application, preferably, the radial follower seat 22 is arranged on the rotating base 21 through a linear guide (unnumbered) corresponding sliding group, and the tangential follower seat 23 is also arranged on the radial follower seat 22 through a linear guide (unnumbered) corresponding sliding group. The movable clamp 24 is a clamping claw that opens and closes along the sliding direction of the tangential follower seat 23 .

[0025] Further preferably, the rotating base 21 includes a turntable 211 and a fixed seat 213 locked on the turntable 211 by a locking member 2130. The radial follower seat 22 sliding group is arranged on the fixed seat 213. The turntable 211 is provided with a scale line 212. Preferably, the fixed seat 213 can be adjusted and fixed to different positions of the turntable 211 along the scale line 212 as a track by locking and unlocking the locking member 2130. Such a design is to make the torque automatic adjustment device of the rotating shaft module of the present application applicable to more types of rotating shaft modules, such as the case where the rotating shafts of the left rotating arm 12 and the right rotating arm 13 are not coaxial, and for example, there are multiple rotating shaft members 11 The shaft module 1 (for example, two or more, such as the rotating shaft assembly disclosed in the CN222014679U patent, or the rotating mechanism disclosed in the CN117145855B patent). In the present application, the locking member 2130 can be, for example, a bolt.

[0026] Please refer to Figures 1 to 3 As shown, the fixed clamp seat 3 is installed on the frame and is provided with a fixed clamp 31 for clamping the right rotating arm 13. When the rotating base 21 rotates, the radial follower seat 22, the tangential follower seat 23 and the dynamic clamp 24 rotate synchronously with the rotating base 21, and then synchronously drive the left rotating arm 12 to rotate relative to the right rotating arm 13. During this process, the radial follower seat 22 can slide relative to the left rotating arm 12 to ensure that the dynamic clamp 24 only provides the tangential rotation force (rotation direction) to drive the left rotating arm 12, and ensure that there is no other interference torque affecting the rotation torque between the left rotating arm 12 and the right rotating arm 13.

[0027] Please refer to Figure 1 , Figure 5 and Figure 6 As shown, the torque adjustment seat 4 is installed on the frame and is provided with a torque adjustment seat 4 capable of adjusting the torque in a set direction ( Figure 1 Schematically shown is a torque adjustment arm 41 that moves in the up and down directions, that is, the axial direction of the rotating shaft member 11). Specifically, the torque adjustment seat 4 is arranged on the second track segment 40 on the frame through a sliding group, and the second track segment 40 is a linear track. In a preferred embodiment, the torque adjustment member 14 of the rotating shaft module 1 is a nut that is threadedly locked on the rotating shaft member 11, and the torque adjustment arm 41 can move along the rotation axis of the nut (that is, the axial direction of the rotating shaft member 11), and one end of the torque adjustment arm 41 is formed as a limiting structure that can be sleeved on the outer periphery of the nut to achieve synchronous rotation, and the limiting structure can be designed as a recessed portion that matches and engages with the shape of the nut.

[0028] In a preferred embodiment, the guiding jaw assembly 5 is also mounted on the frame, and includes two jaw rods 51, each of which has a guiding notch 511 formed at one end thereof. The two jaw rods 51 can rotate with the other end as the shaft and realize relative opening or closing. The guiding notches 511 of the two jaw rods 51 are arranged relatively to each other and are configured to guide the lower end position of the torque adjustment member 14 of the shaft module 1 when in a closed state (the torque adjustment member 14 needs to be exposed), so that the torque adjustment member 14 is directly opposite to the moving axis of the control adjustment arm 41, so that the control adjustment arm 41 can accurately lock the torque adjustment member 14. Specifically, the guiding jaw assembly 5 sliding group is arranged on the first track section 50 on the frame, and the first track section 50 is a linear track. The sliding of the guiding jaw assembly 5 relative to the frame and the sliding of the torque adjustment seat 4 relative to the frame are independent of each other.

[0029] There is a state that when the torque adjustment arm 41 moves to the first position, it can be locked with the torque adjustment member 14; when the torque adjustment arm 41 moves to the second position, it is not locked with the torque adjustment member 14. The torque test sensor assembly is installed on the frame, and is configured to measure the torque value A when the dynamic clamp seat 2 drives the left rotating arm 12 to rotate relative to the right rotating arm 13 when the torque adjustment arm 41 moves to the second position. Specifically, when the torque adjustment arm 41 moves to the first position, the dynamic clamp seat 2 does not drive the left rotating arm 12 to rotate. Only when and only when the torque adjustment arm 41 moves to the second position, the dynamic clamp seat 2 drives the left rotating arm 12 to rotate. In this process, the above torque value A is measured by the torque test sensor assembly.

[0030] The control system (not shown) receives the torque value A measured by the torque test sensor assembly and performs calculations. When the torque value A is greater than the set range value or when the torque value A is less than the set range value, the control adjustment arm 41 moves to the first position and adjusts the torque adjustment member 14 to change the torque value between the left rotating arm 12 and the right rotating arm 13. Specifically, the control adjustment arm 41 drives the torque adjustment member 14 to rotate relative to the rotating shaft member 11 to change the torque value between the left rotating arm 12 and the right rotating arm 13. In a preferred embodiment, the control system is set with N gear torque value intervals, and each gear of the torque value interval corresponds to an adjustment signal, and each adjustment signal corresponds to controlling the control adjustment arm 41 to adjust a set action on the torque adjustment member 14, and the set action is that the control adjustment arm 41 drives the torque adjustment member 14 to rotate relative to the rotating shaft member 11.

[0031] For example, the set range value is in the range of 2kgf·cm to 4kgf·cm (including the endpoint value), and the N gear torque value interval includes a larger interval in which the measured torque value A is greater than the set range value and a smaller interval in which the measured torque value A is less than the set range value, and the larger interval is divided into several intervals with 0.1kgf·cm as an interval, such as the B1 interval: greater than 4kgf·cm and less than level 4.1kgf·cm; the B2 interval: greater than 4.1kgf·cm and less than or equal to 4.2kgf·cm; the B3 interval: greater than 4.2kgf·cm and less than level 4.3kgf·cm, and so on. Each set interval (B1, B2, B3...) corresponds to an adjustment signal, and the adjustment signal controls the control adjustment arm 41 to rotate the torque adjustment member 14 by a set angle (for example: the B1 interval rotates 5 degrees clockwise, the B2 interval rotates 10 degrees clockwise, and so on). The smaller interval is divided into several intervals of 0.1kgf·cm, for example, interval C1 is: greater than or equal to 2.1kgf·cm and less than 2kgf·cm; interval C2 is: greater than or equal to 2.2kgf·cm and less than 2.1kgf·cm; interval C3 is: greater than or equal to 2.3kgf·cm and less than 2.2kgf·cm, and so on. Each set interval (C1, C2, C3...) corresponds to an adjustment signal, and the adjustment signal controls the control adjustment arm 41 to rotate the torque adjustment member 14 by a set angle (for example, C1 interval rotates 5 degrees counterclockwise, C2 interval rotates 10 degrees counterclockwise, and so on).

[0032] Of course, the above are only examples, and the relevant set values ​​can be adjusted according to actual conditions. Preferably, the number of torque value intervals (larger intervals) in the N-gear torque value interval that are greater than the set range value is not less than five and continuous, and the number of torque value intervals (smaller intervals) in the N-gear torque value interval that are less than the set range value is not less than five and continuous. When the automatic torque adjustment device of the shaft module of the present application is in use, after multiple automatic measurements and adjustments of the shaft module 1, the torque of the shaft module 1 can be satisfied within the set range.

[0033] In addition, in the embodiment of the present application, the linear movement of the torque adjustment arm 41 and the guide clamping jaw assembly 5 can be achieved by a linear motor or a cylinder. The rotation of the turntable 211 and the torque adjustment arm 41 can be achieved by a stepping motor or the like. The movement of the radial follower seat 22 and the tangential follower seat 23 is a passive movement without the need for any active drive element. In addition, in the present application, the rotation axis of the rotating base 21 is coaxial with the axis of the rotating shaft member 11, so that when the rotating base 21 rotates and drives the left rotating arm 12 to rotate relative to the right rotating arm 13, the generation of interference torque is reduced, ensuring that the torque value A measured by the torque test sensor assembly is more accurate.

[0034] In the description of the present application, it should be understood that the orientation or position relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0039] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A torque automatic adjustment device for a rotating shaft module, the rotating shaft module (1) comprising at least a rotating shaft member (11) and a left rotating arm (12), a right rotating arm (13) and a torque adjustment member (14) rotatably coupled to the rotating shaft member (11), and configured to drive the torque adjustment member (14) to adjust the rotational torque value between the left rotating arm (12) and the right rotating arm (13), characterized in that: include: frame; A movable clamp (2) is mounted on a frame and comprises a rotating base (21), a radial follower seat (22) arranged on the rotating base (21) and having a radial sliding group along the rotating direction of the rotating base (21), a tangential follower seat (23) arranged on the radial follower seat (22) and having a tangential sliding group along the rotating direction of the rotating base (21), and a movable clamp (24) fixed on the tangential follower seat (23), wherein the movable clamp (24) is used to clamp the left rotating arm (12); A fixed clamp seat (3) is mounted on the frame and is provided with a fixed clamp (31) for clamping the right rotating arm (13); When the rotating base (21) rotates, the radial follower seat (22), the tangential follower seat (23) and the movable clamp (24) rotate synchronously with the rotating base (21), thereby synchronously driving the left rotating arm (12) to rotate relative to the right rotating arm (13); A torque adjustment seat (4) is mounted on the frame and is provided with a torque adjustment arm (41) that can move along a set direction, and when the torque adjustment arm (41) is moved to a first position, it can be locked with the torque adjustment member (14); when the torque adjustment arm (41) is moved to a second position, it is not locked with the torque adjustment member (14); A torque test sensor assembly (not shown) is mounted on the frame and is configured to measure a torque value A when the dynamic clamp seat (2) drives the left rotating arm (12) to rotate relative to the right rotating arm (13) when the torque adjustment arm (41) moves to the second position; A control system (not shown) receives a torque value A measured by the torque test sensor assembly and performs calculations. When the torque value A is greater than a set range value or when the torque value A is less than a set range value, the control arm (41) is controlled to move to a first position and the torque adjustment member (14) is adjusted to change the torque value between the left rotating arm (12) and the right rotating arm (13).

2. The automatic torque adjustment device for a rotating shaft module according to claim 1, characterized in that: When the rotating base (21) rotates and drives the left rotating arm (12) to rotate relative to the right rotating arm (13), the radial follower seat (22) can slide relative to the left rotating arm (12).

3. The automatic torque adjustment device for a rotating shaft module according to claim 1, characterized in that: The torque adjustment member (14) is a nut threadably locked onto the rotating shaft member (11); the torque adjustment arm (41) is movable along the rotation axis of the nut; and one end of the torque adjustment arm (41) is formed as a limiting structure that can be sleeved on the outer periphery of the nut to achieve synchronous rotation.

4. The automatic torque adjustment device for a rotating shaft module according to claim 1, characterized in that: The control system is set with N gear torque value intervals, each gear torque value interval corresponds to an adjustment signal, and each adjustment signal corresponds to controlling the control adjustment arm (41) to adjust a set action on the torque adjustment member (14).

5. The automatic torque adjustment device for a rotating shaft module according to claim 4, characterized in that: The number of torque value intervals in the N gear torque value interval that are greater than the set range value is not less than five and continuous, and / or the number of torque value intervals in the N gear torque value interval that are less than the set range value is not less than five and continuous.

6. The automatic torque adjustment device for a rotating shaft module according to claim 4, characterized in that: The control adjustment arm (41) drives the torque adjustment member (14) to rotate relative to the rotating shaft member (11) to change the torque value between the left rotating arm (12) and the right rotating arm (13); The setting action is the control adjustment arm (41) driving the torque adjustment member (14) to rotate relative to the rotating shaft member (11).

7. The automatic torque adjustment device of the shaft module according to any one of claims 1 to 6, characterized in that: The rotating base (21) comprises: A rotating disk (211), wherein the rotating disk (211) is provided with scale lines (212); A fixing seat (213) is locked on the rotating disk member (211) via a locking member (2130); The fixing seat (213) can be adjusted and fixed to different positions of the rotating disk member (211) along the track of the scale line (212) by locking and unlocking the locking member (2130).

8. The automatic torque adjustment device of the shaft module according to any one of claims 1 to 6, characterized in that: Also includes: The guide jaw assembly (5) is mounted on a frame and comprises two jaw rods (51). A guide slot (511) is formed at one end of each of the jaw rods (51). The two jaw rods (51) can rotate with the other end as a rotation axis and realize relative opening or closing. The guide slots (511) of the two jaw rods (51) are arranged opposite to each other and are configured to guide the lower end of the torque adjustment member (14) of the rotation axis module (1) when in a closed state, so that the torque adjustment member (14) is aligned with the control adjustment arm (41).

9. The automatic torque adjustment device of the shaft module according to claim 8, characterized in that: The guide clamping jaw assembly (5) is slidably mounted on a first track section (50) on the frame; The torque adjustment seat (4) is slidably mounted on a second track (40) on the frame; The sliding movement of the guide clamping jaw assembly (5) relative to the frame and the sliding movement of the torque adjustment seat (4) relative to the frame are independent of each other.

10. The automatic torque adjustment device of the shaft module according to any one of claims 1 to 6, characterized in that: The rotation axis of the rotating base (21) is coaxial with the axis of the rotating shaft (11).

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