Angle adjusting mechanism and machining auxiliary tool

Abstract

The utility model discloses an angle adjusting mechanism and a machining auxiliary tool. The angle adjusting mechanism comprises a shell, an angle adjusting mechanism and an angle adjusting mechanism, a pressing block of the connecting rod assembly is linked with the mover, so that the mover has a moving path in the first linear direction; the telescopic assembly comprises a threaded rod and a locking sleeve, the threaded rod is elastically connected into the shell in the second linear direction, the threaded rod is sleeved with the locking sleeve, the shell is provided with a containing chamber used for limiting the locking sleeve to move in the second linear direction, and the locking sleeve is elastically connected into the containing chamber in the first linear direction; the rotor is used for driving the locking sleeve to move in the elastic compression direction, and an engagement part is arranged on the side, away from the rotor, of the inner wall of the locking sleeve. The joint assembly comprises a rotating shaft, a shaft sleeve and a transmission part, the rotating shaft is rotationally connected to the shell through the shaft sleeve, the rotating shaft is fixedly connected with the transmission part in the shell, and the transmission part is in transmission connection with the screw. According to the utility model, the rotation of the rotating shaft is realized through a pure mechanical structure, and the rotating shaft has good stability, durability and anti-interference performance.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation manufacturing, in particular to an angle adjustment mechanism and a processing auxiliary tooling. Background Art

[0002] In recent years, with the continuous development of the economy, passenger airplanes have become a mainstream means of transportation, and the air travel industry has flourished. The positive development of the aviation industry has also greatly promoted the continuous expansion of the aviation manufacturing industry, which has led to an increasing demand for facilities and equipment in related industries. As a consumable part, aircraft brake assemblies have huge demand potential.

[0003] The brake pair of some models of aircraft is mainly assembled by 3 dynamic carbon discs, 2 static discs, 1 pressure disc and 1 clamping disc. The dynamic carbon disc is connected to the aircraft wheel hub key strip through its transmission inter-tooth groove and rotates at high speed with the aircraft wheel hub. Since the processing of the dynamic carbon disc needs to be adjusted at a specific angle in order to process its contour, it is urgent to design a processing auxiliary tooling to meet the processing requirements of the dynamic carbon disc. Utility Model Content

[0004] The utility model aims to provide an angle adjustment mechanism to effectively adjust the angle of a moving carbon disc during processing.

[0005] According to the angle adjustment mechanism of the first embodiment of the utility model, it includes:

[0006] case;

[0007] A connecting rod assembly connected in the housing, the connecting rod assembly comprising a pressing block and a mover, the pressing block extending outside the housing, the pressing block and the mover being linked so that the mover has a moving path along a first straight line direction;

[0008] A telescopic assembly, comprising a screw and a locking sleeve, wherein the screw is elastically connected to the housing along a second linear direction, the locking sleeve is sleeved on a threaded section of the screw, the housing is provided with a receiving chamber for limiting the movement of the locking sleeve along the second linear direction, the locking sleeve is elastically connected to the receiving chamber along a first linear direction, the mover is used to drive the locking sleeve to move in an elastic compression direction, an inner wall of the locking sleeve is provided with an engaging portion on a side away from the mover, and the engaging portion and the threaded section have a mutually engaging connection relationship;

[0009] The joint assembly includes a rotating shaft, a sleeve and a transmission member. The rotating shaft is rotatably connected to the housing through the sleeve. The rotating shaft is fixedly connected to the transmission member in the housing. The transmission member is transmission-connected to the screw rod. The second straight line direction is parallel to the tangent of the rotating shaft.

[0010] The angle adjustment mechanism according to the embodiment of the utility model has at least the following beneficial effects: the rotating joint of the movable carbon disc processing auxiliary tooling is driven by the rotating shaft of the joint assembly. When the rotating angle of the rotating shaft needs to be adjusted, the user remotely controls the mover by pressing the pressing block, so that the mover drives the locking sleeve to move in the direction of elastic compression. During this process, the engaging portion of the locking sleeve leaves the thread segment of the screw, so that the screw can get rid of the constraint of the locking sleeve and move in the direction of the transmission member under the action of elastic force, thereby driving the transmission member to swing and finally driving the rotating shaft to rotate at a certain angle; when the force on the mover is removed, the locking sleeve is reset in the direction of the mover under the action of elastic force, so that the engaging portion of the locking sleeve can re-engage with the thread segment of the screw, thereby limiting the movement of the screw in the second straight line direction, thereby locking the rotation of the rotating shaft.

[0011] According to some embodiments of the utility model, the connecting rod assembly further includes a push rod, the pressing block is connected to the push rod, a first rod sleeve is provided in the housing, the first rod sleeve is sleeved on the push rod, and a first elastic member is provided between the first rod sleeve and the pressing block. Through the above arrangement, the pressing block can remain extended out of the housing when not acted upon by external force, thereby preventing the pressing block from sinking into the housing.

[0012] According to some embodiments of the utility model, the mover is clamped in the accommodation chamber, the connecting rod assembly is provided with a power rod that is transmission-connected to the push rod, and the power rod is provided with an inclined surface that abuts against the mover. When the power rod is displaced by an external force, the mover moves toward the direction close to the locking sleeve under the guidance of the inclined surface to drive the locking sleeve to separate from the screw.

[0013] According to some embodiments of the utility model, the housing is connected to an adjustment member, and the power rod is located between the mover and the adjustment member. The user can adjust the distance between the power rod and the mover through the adjustment member to ensure the tightness of the fit between the two and the smoothness of the force conversion.

[0014] According to some embodiments of the utility model, in order to achieve elastic connection of the screw rod, a second rod sleeve is provided in the shell, the second rod sleeve is sleeved on the screw rod, the screw rod is connected to a first adjusting nut, and a second elastic member is provided between the second rod sleeve and the first adjusting nut.

[0015] According to some embodiments of the utility model, the screw rod is connected to a first adjusting nut and a second adjusting nut on both sides of the accommodation chamber, and the first adjusting nut and the second adjusting nut both have a size that is clamped outside the accommodation chamber. The utility model limits the displacement of the screw rod by using the first adjusting nut and the second adjusting nut.

[0016] According to some embodiments of the present invention, the distance between the first adjusting nut and the second adjusting nut is adjustable, so as to adjust the displacement of the screw rod.

[0017] According to some embodiments of the present invention, in order to achieve elastic connection of the locking sleeve, a third elastic member is provided in the accommodating chamber, and the locking sleeve is located between the third elastic member and the mover.

[0018] According to some embodiments of the utility model, in order to facilitate later maintenance and repair, the accommodating chamber is provided with a mounting hole penetrating the housing, the mounting hole is detachably connected to a cover plate, and the third elastic member is located between the locking sleeve and the cover plate. When the locking sleeve is worn and needs to be replaced, the maintenance personnel remove the screw and the cover plate respectively, thereby taking the locking sleeve out of the mounting hole.

[0019] The machining auxiliary tooling according to the second aspect of the embodiment of the utility model comprises a rotating mechanism and the above-mentioned angle adjustment mechanism, and the rotating mechanism and the angle adjustment mechanism are connected via the rotating shaft.

[0020] The processing auxiliary tooling according to the embodiment of the utility model has at least the following beneficial effects: the utility model fully considers the actual processing requirements of the dynamic carbon plate, adjusts the rotation angle of the rotating mechanism through a purely mechanical structure, has a stable and reliable structure, is fast and convenient to operate, can adapt to complex processing environments, and is also more economical and practical.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the angle adjustment mechanism of an embodiment of the utility model;

[0024] Figure 2 It is a three-dimensional exploded view of the angle adjustment mechanism of the embodiment of the utility model;

[0025] Figure 3 is a cross-sectional view of the angle adjustment mechanism of an embodiment of the utility model;

[0026] Figure 4 It is a three-dimensional structural schematic diagram of a connecting rod assembly according to an embodiment of the utility model;

[0027] Figure 5 It is a three-dimensional structural schematic diagram of the telescopic assembly of an embodiment of the utility model;

[0028] Figure 6 It is a three-dimensional structural schematic diagram of a joint assembly of an embodiment of the utility model;

[0029] Figure 7 It is a three-dimensional structural schematic diagram of a locking sleeve of an embodiment of the utility model;

[0030] Figure 8 is another cross-sectional view of the angle adjustment mechanism of an embodiment of the utility model;

[0031] Fig. 9 It is a cross-sectional view of the joint assembly of the embodiment of the utility model.

[0032] In the drawings: 100-housing, 200-connecting rod assembly, 300-telescopic assembly, 400-joint assembly, 110-accommodating chamber, 120-first rod sleeve, 130-second rod sleeve, 210-pressing block, 220-push rod, 230-short rod, 240-power rod, 250-moving element, 241-inclined surface, 121-first elastic member, 140-adjusting member, 310-screw rod, 320-lock Tight sleeve, 311-first adjusting nut, 131-second elastic member, 321-groove, 322-third elastic member, 323-engaging portion, 313-screw segment, 150-mounting hole, 160-cover plate, 151-circlip, 410-rotating shaft, 420-sleeve, 430-transmission member, 421-avoidance position, 314-arc rod head, 440-spring washer, 312-second adjusting nut. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 invention.

[0035] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of the first, second, and third, it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] like Figures 1 to 3 As shown, the angle adjustment mechanism according to the first embodiment of the utility model comprises a housing 100, a connecting rod assembly 200, a telescopic assembly 300 and a joint assembly 400. The housing 100 is the installation reference of all parts and components, and an assembly space is provided therein. The housing 100 is provided with a receiving chamber 110, a first rod sleeve 120 and a second rod sleeve 130 in its assembly space, and the second rod sleeve 130 is located between the first rod sleeve 120 and the receiving chamber 110. The connecting rod assembly 200, the telescopic assembly 300 and the joint assembly 400 are all connected to the housing 100. The angle adjustment mechanism drives the telescopic assembly 300 through the connecting rod assembly 200, and then drives the joint assembly 400 through the telescopic assembly 300, so as to achieve angle adjustment.

[0038] Specifically, Figures 2 to 4 As shown, the connecting rod assembly 200 includes a pressing block 210, a push rod 220, a short rod 230, a power rod 240 and a mover 250, wherein the push rod 220, the short rod 230 and the power rod 240 are hinged in sequence to form a connecting rod structure, wherein the short rod 230 is rotatably connected to the second rod sleeve 130 through a pin, thereby limiting the position of the connecting rod assembly 200. The pressing block 210 is connected to the end of the push rod 220, and the pressing block 210 extends outside the housing 100, so that the user can apply force to the entire connecting rod structure through the pressing block 210.

[0039] In this embodiment, the mover 250 may be a steel ball, which is stuck in the accommodation chamber 110. The mover 250 has the freedom to move in the accommodation chamber 110, and the mover 250 may protrude from the accommodation chamber 110, but cannot be separated from the accommodation chamber 110. Correspondingly, the end of the power rod 240 is provided with an inclined surface 241 that can abut against the mover 250, and the thickness of the inclined surface 241 gradually decreases from the power rod 240 to the push rod 220. When the user presses the pressing block 210, the push rod 220 is forced to move in the direction of the short rod 230. Since the short rod 230 is rotatably connected to the second rod sleeve 130 through a pin, the short rod 230 drives the power rod 240 to move in the direction of the short rod 230 under the action of the push rod 220. Since the thickness of the inclined surface 241 of the power rod 240 gradually decreases from the power rod 240 to the push rod 220, when the power rod 240 moves in the direction of the short rod 230, the mover 250 moves toward the inside of the accommodating chamber 110 under the guidance of the inclined surface 241.

[0040] For the convenience of the following description, the present invention defines the moving direction of the mover 250 in the receiving chamber 110 as a first linear direction. It should be further explained that the first linear direction includes the reciprocating direction of the mover 250 in the receiving chamber 110 .

[0041] Furthermore, in order to enable the pressing block 210 to remain extended out of the housing 100 when not acted upon by external forces, and to prevent the pressing block 210 from being sunken into the housing 100, the push rod 220 passes through the first rod sleeve 120, and a first elastic member 121 is provided between the first rod sleeve 120 and the pressing block 210. In this embodiment, the first elastic member 121 may be a spring or a spring sheet. When the user presses the pressing block 210, since the first rod sleeve 120 is relatively fixedly arranged in the housing 100, the first elastic member 121 is compressed to store energy. When the user removes the force applied to the pressing block 210, the first elastic member 121 releases energy to reset the pressing block 210, thereby driving the entire connecting rod structure to reset, thereby restoring the free state of the mover 250.

[0042] Furthermore, the housing 100 is connected with an adjusting member 140, and the power rod 240 is located between the mover 250 and the adjusting member 140. In this embodiment, the adjusting member 140 may be a screw, which is threadedly connected to adjust its length in the housing 100, thereby adjusting the distance between the power rod 240 and the mover 250 to ensure the tightness of the fit between the two and the smoothness of the force conversion. Generally speaking, maintenance personnel only need to adjust the length of the adjusting member 140 during the debugging phase, and continue to use this setting during subsequent use. However, if some parts of the angle adjustment mechanism are replaced, it may be necessary to recalibrate the distance between the power rod 240 and the mover 250 through the adjusting member 140.

[0043] It is understandable that the present invention does not limit the specific structure of the connecting rod assembly 200. As long as the connecting rod assembly 200 can remotely drive the mover 250 to move toward the interior of the accommodating chamber 110 by pressing the pressing block 210, no matter what structure the connecting rod assembly 200 has, it falls within the protection scope of the present invention.

[0044] like Figure 2 , Figure 3 , Figure 5 and Figure 7 As shown, the telescopic assembly 300 includes a screw rod 310 and a locking sleeve 320. The locking sleeve 320 is arranged in the accommodation chamber 110 and can move in the accommodation chamber 110 along the first straight direction, but the freedom in other directions is limited by the accommodation chamber 110. The screw rod 310 passes through the second rod sleeve 130 and the locking sleeve 320 in sequence. The screw rod 310 is connected with a first adjustment nut 311 between the second rod sleeve 130 and the locking sleeve 320. A second elastic member 131 is arranged between the second rod sleeve 130 and the first adjustment nut 311. In this embodiment, the second elastic member 131 can be a spring or a spring sheet. Since the second rod sleeve 130 is relatively fixedly arranged in the housing 100, the second elastic member 131 has an elastic tendency to push the screw rod 310 toward the accommodation chamber 110.

[0045] For the convenience of the following description, the present invention defines the movement direction of the screw rod 310 as the second linear direction. It should be further explained that the second linear direction includes the reciprocating direction of the screw rod 310 .

[0046] At the same time, the locking sleeve 320 is provided with a groove 321 at one end away from the mover 250, and a third elastic member 322 is installed in the groove 321. The third elastic member 322 has an elastic tendency to push the locking sleeve 320 toward the mover 250. In this embodiment, the third elastic member 322 can be selected as a spring or a spring. In order to limit the movement of the screw 310, the inner wall of the locking sleeve 320 is provided with a bite portion 323 on the side away from the mover 250, and the inner wall of the locking sleeve 320 is smooth on the side close to the mover 250. The bite portion 323 and the thread segment 313 of the screw 310 have a mutually bite connection relationship. In this embodiment, the bite portion 323 can be selected as a thread. When the locking sleeve 320 maintains engagement with the screw rod 310 under the elastic force of the third elastic member 322, since the movement of the locking sleeve 320 in the second straight line direction is restricted by the accommodating chamber 110, the movement of the screw rod 310 in the second straight line direction is also restricted by the locking sleeve 320.

[0047] Furthermore, in order to facilitate later maintenance and repair, the accommodating chamber 110 is provided with a mounting hole 150 penetrating the housing 100, the mounting hole 150 is detachably connected with a cover plate 160, and the third elastic member 322 is located between the locking sleeve 320 and the cover plate 160. In this embodiment, the mounting hole 150 may be a retaining spring hole, and the cover plate 160 is detachably connected via a retaining spring 151. When the locking sleeve 320 is worn and needs to be replaced, the maintenance personnel remove the screw rod 310 and the cover plate 160 respectively, thereby taking the locking sleeve 320 out of the mounting hole 150.

[0048] like Figure 2 , Figure 6 , Figure 8 and Fig. 9 As shown, the joint assembly 400 includes a rotating shaft 410, a sleeve 420 and a transmission member 430. The sleeve 420 is sleeved outside the rotating shaft 410. The housing 100 is provided with an axial hole for installing the sleeve 420, so that the rotating shaft 410 can be rotatably connected to the housing 100. At this time, the accommodation chamber 110 is located between the joint assembly 400 and the second rod sleeve 130. The sleeve 420 has a reserved clearance position 421 in the housing 100. The rotating shaft 410 is fixedly connected with the transmission member 430 at the clearance position 421. The transmission member 430 is used to be transmission-connected with the end of the screw rod 310, and the second straight line direction is parallel to the tangent of the rotating shaft 410, so that the screw rod 310 can drive the rotating shaft 410 to rotate by pushing the transmission member 430.

[0049] Furthermore, in order to improve the transmission efficiency between the screw rod 310 and the transmission member 430, the end of the screw rod 310 is connected with a circular arc rod head 314, and the transmission member 430 has a shape structure matching the circular arc rod head 314 to increase the contact area between the two. In addition, a spring washer 440 is provided on the escape position 421 of the sleeve 420, and the spring washer 440 abuts against the transmission member 430 through elastic force to fill the escape position 421, thereby achieving a vibration reduction effect.

[0050] With the above structure, when the user presses the pressing block 210, the push rod 220 is forced to move in the direction of the short rod 230. Since the short rod 230 is rotatably connected to the second rod sleeve 130 through the pin, the short rod 230 drives the power rod 240 to move in the direction of the short rod 230 under the action of the push rod 220. Since the thickness of the inclined surface 241 of the power rod 240 gradually decreases from the power rod 240 to the push rod 220, when the power rod 240 moves in the direction of the short rod 230, the movable 250 moves toward the interior of the accommodating chamber 110 under the guidance of the inclined surface 241, causing the locking sleeve 320 to move in the elastic compression direction of the third elastic member 322. During this process, the engaging portion 323 of the locking sleeve 320 leaves the thread segment 313 of the screw rod 310, so that the screw rod 310 can get rid of the constraint of the locking sleeve 320 and move toward the direction of the transmission member 430 under the elastic force of the second elastic member 131, thereby driving the transmission member 430 to swing, and finally driving the rotating shaft 410 to rotate at a certain angle. When the force on the mover 250 is removed, the locking sleeve 320 is reset toward the mover 250 under the elastic force of the third elastic member 322, so that the engagement portion 323 of the locking sleeve 320 can reengage with the threaded segment 313 of the screw rod 310. Since the movement of the locking sleeve 320 in the second linear direction is restricted by the accommodation chamber 110, the movement of the screw rod 310 in the second linear direction is also restricted by the locking sleeve 320, thereby limiting the movement of the screw rod 310 in the second linear direction, thereby locking the rotation of the rotating shaft 410. At the same time, the pressing block 210 is reset under the elastic force of the first elastic member 121, thereby driving the entire connecting rod structure to reset.

[0051] When the screw rod 310 needs to be switched from the extended state to the ready-to-extend state, the user presses the pressing block 210 again to unlock the restriction on the screw rod 310, and then controls the reset rotation of the rotating shaft 410 at the execution end, so that the transmission member 430 can push the screw rod 310 to move in the direction of the second rod sleeve 130. At this time, the second elastic member 131 is in an energy storage state. After that, the force applied to the pressing block 210 is removed to restore the movable member 250 to a free state, and the locking sleeve 320 is reset toward the movable member 250 under the elastic force of the third elastic member 322, so that the engaging portion 323 of the locking sleeve 320 can engage with the threaded segment 313 of the screw rod 310. Since the movement of the locking sleeve 320 in the second linear direction is restricted by the accommodating chamber 110, the movement of the screw rod 310 in the second linear direction is also restricted by the locking sleeve 320, thereby limiting the movement of the screw rod 310 in the second linear direction.

[0052] like Figure 1 and Figure 5 As shown, in some embodiments of the present invention, the screw rod 310 is connected to a first adjusting nut 311 and a second adjusting nut 312 on both sides of the accommodation chamber 110, respectively, and the first adjusting nut 311 and the second adjusting nut 312 both have a size to be clamped outside the accommodation chamber 110. Since the accommodation chamber 110 is fixedly connected to the housing 100, when the first adjusting nut 311 or the second adjusting nut 312 on the screw rod 310 abuts against the accommodation chamber 110, the movement of the screw rod 310 in the compliance direction is hindered, that is, the present invention limits the displacement of the screw rod 310 by the first adjusting nut 311 and the second adjusting nut 312.

[0053] Since the rotation angle of the rotating shaft 410 is positively correlated with the displacement of the screw rod 310 , the angular displacement of the rotating shaft 410 can be controlled by adjusting the distance between the first adjusting nut 311 and the second adjusting nut 312 , thereby meeting different processing requirements.

[0054] Furthermore, in order to prevent the first adjusting nut 311 or the second adjusting nut 312 from slipping with the thread segment 313 of the screw rod 310, thereby causing the distance between the first adjusting nut 311 and the second adjusting nut 312 to passively change, the first adjusting nut 311 and the second adjusting nut 312 are both composed of two nuts with opposite spiral directions, and the two nuts squeeze each other to achieve a preventive effect.

[0055] According to the machining auxiliary tooling of the second embodiment of the utility model, it includes the angle adjustment mechanism according to the above-mentioned first embodiment of the utility model, and also includes a rotating mechanism (not shown in the drawings), and the rotating mechanism and the angle adjustment mechanism are connected through the rotating shaft 410. The rotation angle of the rotating mechanism is adjusted by the distance between the first adjusting nut 311 and the second adjusting nut 312. Since the distance between the first adjusting nut 311 and the second adjusting nut 312 can be adjusted steplessly, the rotating mechanism has a higher precision rotation performance to meet various machining requirements of the dynamic carbon plate.

[0056] The utility model fully considers the actual processing requirements of the dynamic carbon disc, adjusts the rotation angle of the rotating mechanism through a purely mechanical structure, has a stable and reliable structure, is fast and convenient to operate, can adapt to complex processing environments, and is more economical and practical.

[0057] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. Angle adjustment mechanism, characterized in that: include: Housing (100); A connecting rod assembly (200) connected in the housing (100), the connecting rod assembly (200) comprising a pressing block (210) and a mover (250), the pressing block (210) extending outside the housing (100), the pressing block (210) and the mover (250) being linked so that the mover (250) has a moving path along a first straight line direction; A telescopic assembly (300) comprises a screw (310) and a locking sleeve (320), wherein the screw (310) is elastically connected to the housing (100) along a second linear direction, the locking sleeve (320) is sleeved on a threaded section (313) of the screw (310), the housing (100) is provided with a receiving chamber (110) for limiting the movement of the locking sleeve (320) along the second linear direction, the locking sleeve (320) is elastically connected to the receiving chamber (110) along a first linear direction, the mover (250) is used to drive the locking sleeve (320) to move in an elastic compression direction, and an inner wall of the locking sleeve (320) is provided with a bite portion (323) on a side away from the mover (250), and the bite portion (323) and the threaded section (313) have a mutually bite connection relationship; A joint assembly (400) comprises a rotating shaft (410), a shaft sleeve (420) and a transmission member (430); the rotating shaft (410) is rotatably connected to the housing (100) via the shaft sleeve (420); the rotating shaft (410) is fixedly connected to the transmission member (430) in the housing (100); the transmission member (430) is transmission-connected to the screw rod (310); and the second straight line direction is parallel to a tangent of the rotating shaft (410).

2. The angle adjustment mechanism according to claim 1, characterized in that: The connecting rod assembly (200) further comprises a push rod (220), the pressing block (210) is connected to the push rod (220), a first rod sleeve (120) is provided in the housing (100), the first rod sleeve (120) is sleeved on the push rod (220), and a first elastic member (121) is provided between the first rod sleeve (120) and the pressing block (210).

3. The angle adjustment mechanism according to claim 2, characterized in that: The mover (250) is clamped in the accommodating chamber (110), and the connecting rod assembly (200) is provided with a power rod (240) which is transmission-connected to the push rod (220), and the power rod (240) is provided with an inclined surface (241) which abuts against the mover (250).

4. The angle adjustment mechanism according to claim 3, characterized in that: The housing (100) is connected to an adjusting member (140), and the power rod (240) is located between the mover (250) and the adjusting member (140).

5. The angle adjustment mechanism according to claim 1, characterized in that: A second rod sleeve (130) is provided in the housing (100), the second rod sleeve (130) is sleeved on the screw rod (310), the screw rod (310) is connected to a first adjusting nut (311), and a second elastic member (131) is provided between the second rod sleeve (130) and the first adjusting nut (311).

6. The angle adjustment mechanism according to claim 5, characterized in that: The screw rod (310) is respectively connected to a first adjusting nut (311) and a second adjusting nut (312) on both sides of the accommodating chamber (110); the first adjusting nut (311) and the second adjusting nut (312) both have a size capable of being clamped outside the accommodating chamber (110).

7. The angle adjustment mechanism according to claim 6, characterized in that: The distance between the first adjusting nut (311) and the second adjusting nut (312) is adjustable.

8. The angle adjustment mechanism according to claim 1, characterized in that: A third elastic member (322) is provided in the accommodating chamber (110), and the locking sleeve (320) is located between the third elastic member (322) and the mover (250).

9. The angle adjustment mechanism according to claim 8, characterized in that: The accommodating chamber (110) is provided with a mounting hole (150) penetrating the shell (100); the mounting hole (150) is detachably connected to a cover plate (160); and the third elastic member (322) is located between the locking sleeve (320) and the cover plate (160).

10. A processing auxiliary tool, characterized in that: It comprises the angle adjustment mechanism as claimed in any one of claims 1 to 9, and further comprises: a rotating mechanism, wherein the rotating mechanism is connected to the angle adjustment mechanism via the rotating shaft (410).

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