Claw pole type linear stepping motor capable of being manually and finely adjusted

Abstract

The utility model relates to the technical field of stepping motors, in particular to a claw pole type linear stepping motor capable of being manually and finely adjusted, which comprises a framework combination, a stator assembly and a rotor assembly, the framework combination comprises a front framework and a rear framework, the stator assembly is arranged between the front framework and the rear framework, and the rotor assembly is arranged between the front framework and the rear framework. The rotor assembly comprises a rotating piece, a sliding piece and a magnetic steel, the rotating piece is rotationally installed on the framework combination, the magnetic steel is arranged on the rotating piece in a sleeving mode, the stator assembly is located on the outer side of the magnetic steel, the sliding piece is arranged on the front framework in a sliding mode and is in spiral transmission connection with the rotating piece, and the end, away from the front framework, of the rotating piece is exposed to the outside; according to the utility model, one end of the rotating member is exposed to the outside, so that the rotating member exposed to the outside can be rotated when a mounting and debugging worker debugs under the condition that the coil on the framework combination loses power, so that the sliding member does short-stroke reciprocating rectilinear motion to meet the debugging requirement, and the advantages of short-stroke rectilinear motion in a power-losing state and convenience in debugging are realized.

Description

Technical Field

[0001] The present application relates to the technical field of stepper motors, and more specifically to a claw-pole linear stepper motor that can be manually fine-tuned. Background Art

[0002] A claw-pole motor is a motor with at least two claw poles facing in opposite directions and arranged alternately in the circumferential direction. When the coil of a linear stepper motor is energized, the rotation of the motor rotor is converted into a linear reciprocating motion of the output rod.

[0003] Our company currently has a claw-pole linear stepper motor, as disclosed in the patent document (CN211089411U), which includes a coil skeleton, a housing, a rotor, a guide rod and a screw. The coil skeleton is fixedly mounted on the housing, a coil is wound on the coil skeleton, and the rotor is rotatably mounted on the skeleton. One end of the guide rod is slidably arranged on the housing through a limiting structure, and the other end of the guide rod is fixedly connected to the screw and moves synchronously. The screw is threadedly connected to the rotor. When the coil on the coil skeleton is energized, the rotor rotates circumferentially, and the screw threadedly connected to the rotor moves axially under the principle of screw transmission because the guide rod can only move axially and drives the guide rod to perform reciprocating linear motion. However, sometimes when installing and adjusting the equipment, the installation and debugging personnel need to make the guide rod perform a short-stroke reciprocating linear motion. However, at this time, the installation and debugging personnel have not connected the coil to the external power supply, and the existing claw-pole linear stepper motor can only make the guide rod perform linear motion after the coil is energized. As a result, the installation and debugging personnel have to connect the wires in advance, affecting the continuity of the installation and debugging work. There is room for further optimization.

[0004] Therefore, there is a need to provide a claw-pole linear stepper motor that can perform short-stroke linear movement in a power-off state and is easy to debug and can be manually fine-tuned. Summary of the invention

[0005] The main purpose of the present application is to provide a claw-pole linear stepper motor that can be manually fine-tuned, wherein the claw-pole linear stepper motor that can be manually fine-tuned includes a frame assembly, a stator assembly and a rotor assembly, the frame assembly includes a front frame and a rear frame, the stator assembly is arranged between the front frame and the rear frame, the rotor assembly includes a rotating member, a sliding member and a magnetic steel, the rotating member is rotatably installed on the frame assembly, the magnetic steel is sleeved on the rotating member, and the stator assembly is located on the outside of the magnetic steel, the sliding member is slidably arranged on the front frame, and the sliding member is spirally connected to the rotating member, and the end of the rotating member away from the front frame is exposed to the outside. The utility model exposes one end of the rotating member to the outside. When debugging, when the coil on the frame assembly is de-energized, the installation and debugging personnel can rotate the rotating member exposed to the outside to make the sliding member perform a short-stroke reciprocating linear motion to meet the debugging requirements. Compared with the prior art, it has the advantages of being able to perform short-stroke linear movement in a de-energized state and being easy to debug.

[0006] Another object of the present application is to provide a manually fine-tuned claw-pole linear stepper motor, wherein the manually fine-tuned claw-pole linear stepper motor also includes a hand-tightening piece, the hand-tightening piece is arranged at one end of the rear frame away from the front frame, and the hand-tightening piece is connected to the rotating piece. When the hand-tightening piece rotates, the rotating piece rotates accordingly. By providing the hand-tightening piece, it is convenient for installation and debugging personnel to rotate the rotating piece.

[0007] In order to achieve at least one of the above-mentioned invention purposes, the present application provides a manually fine-tunable claw-pole linear stepper motor, wherein the manually fine-tunable claw-pole linear stepper motor comprises:

[0008] a frame assembly, the frame assembly comprising a front frame and a rear frame; and

[0009] a stator assembly, the stator assembly being disposed between the front frame and the rear frame; and

[0010] A rotor assembly, the rotor assembly includes a rotating member, a sliding member and a magnet, the rotating member is rotatably mounted on the frame assembly, the magnet is sleeved on the rotating member, and the stator assembly is located on the outside of the magnet, the sliding member is slidably arranged on the front frame, and the sliding member is spirally connected to the rotating member, and one end of the rotating member away from the front frame is exposed to the outside.

[0011] In one or more embodiments of the present application, the manually fine-tunable claw-pole linear stepper motor also includes a hand-tightening piece, which is arranged at one end of the rear frame away from the front frame, and the hand-tightening piece is connected to the rotating piece. When the hand-tightening piece rotates, the rotating piece follows the rotation.

[0012] In one or more embodiments of the present application, the manually fine-tunable claw-pole linear stepper motor also includes a housing combination, the housing combination includes a front housing and a rear housing, the front housing is fixedly connected to the front frame, the rear housing is fixedly connected to the rear frame, and the two ends of the stator assembly are respectively abutted against the front housing and the rear housing.

[0013] In one or more embodiments of the present application, the front shell and the rear shell have a concave cavity at opposite ends, the bottom wall of the concave cavity has a through hole and a plurality of first claw poles arranged in a ring shape, the front frame and the rear frame have a winding portion and a penetrating stepped cavity at opposite ends, the winding portion is located on the outside of the stepped cavity, a coil is wound on the winding portion, the winding portion has a plurality of insertion holes arranged in a ring shape at one end away from the stator assembly, the insertion holes correspond one-to-one with the first claw poles, the front frame and the rear frame extend into the concave cavities of the front shell and the rear shell respectively and pass through the through holes, the winding portion is placed in the concave cavity, and the first claw pole passes through the corresponding insertion holes.

[0014] In one or more embodiments of the present application, the stator assembly includes a first stator core and a second stator core, and the ends of the first stator core and the second stator core opposite to each other each have a plurality of second claw poles arranged in a ring shape, and the second claw poles on the first stator core and the second stator core respectively extend into the stepped cavity of the front frame and the rear frame, and the second claw poles are arranged alternately with the corresponding first claw poles and face oppositely.

[0015] In one or more embodiments of the present application, the stepped cavity on the front frame has an anti-rotation hole at one end portion facing away from the stator assembly, the hole wall of the anti-rotation hole has two symmetrically arranged fan-shaped protrusions, the sliding part has a cylindrical portion, the side surface of the cylindrical portion has two symmetrically arranged fan-shaped grooves, the cylindrical portion passes through the anti-rotation hole, and the fan-shaped protrusion is slidably disposed in the fan-shaped groove.

[0016] In one or more embodiments of the present application, the rotating part has a through hole, the hole wall of the through hole has a threaded portion, the sliding part has a screw portion at one end close to the hand-tightening part, the sliding part has one end of the screw portion passing through the through hole, and the screw portion is threadedly connected to the threaded portion.

[0017] In one or more embodiments of the present application, the manually fine-tunable claw-pole linear stepper motor further includes a connecting plate, which is located at one end of the front housing away from the rear housing, and the connecting plate is sleeved on the front frame.

[0018] In an embodiment of the present application, a manually fine-tuned claw-pole linear stepper motor includes a frame assembly, a stator assembly and a rotor assembly. The frame assembly includes a front frame and a rear frame, the stator assembly is arranged between the front frame and the rear frame, the rotor assembly includes a rotating part, a sliding part and a magnet, the rotating part is rotatably installed on the frame assembly, the magnet is sleeved on the rotating part, and the stator assembly is located on the outside of the magnet, the sliding part is slidably arranged on the front frame, and the sliding part is spirally connected to the rotating part, and the end of the rotating part away from the front frame is exposed to the outside. The utility model exposes one end of the rotating part to the outside. When debugging, when the coil on the frame assembly is de-energized, the installation and debugging personnel can rotate the rotating part exposed to the outside to make the sliding part perform a short-stroke reciprocating linear motion to meet the debugging requirements. Compared with the prior art, it has the advantages of being able to perform short-stroke linear movement in a power-off state and being easy to debug. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] These and / or other aspects and advantages of the present application will become clearer and easier to understand from the following detailed description of the embodiments of the present application in conjunction with the accompanying drawings, in which:

[0020] Figure 1 The figure shows a cross-sectional view of a claw-pole linear stepper motor capable of manual fine adjustment according to the present invention;

[0021] Figure 2 The figure shows a schematic diagram of the structure of a claw-pole linear stepper motor that can be manually fine-tuned;

[0022] Figure 3 The diagram shows a schematic diagram of the structure of the front skeleton from a certain perspective;

[0023] Figure 4 The figure shows a schematic diagram of the structure of the front skeleton from another perspective;

[0024] Figure 5 The figure shows a schematic diagram of the structure of the front housing;

[0025] Figure 6 The figure shows a schematic structural diagram of a first stator core;

[0026] Figure 7 The figure shows a schematic diagram of the first stator core and the front frame being installed on the front housing. DETAILED DESCRIPTION

[0027] The terms and words used in the following specification and claims are not limited to the literal meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustrative purposes only and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.

[0028] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0029] Although ordinals such as "first," "second," and the like will be used to describe various components, those components are not limited herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more associated listed items.

[0030] The terms used herein are only used for the purpose of describing various embodiments and are not intended to be limiting. As used herein, singular forms are intended to also include plural forms, unless the context clearly indicates an exception. In addition, it will be understood that the terms "including" and / or "having" when used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0031] Application Overview

[0032] There is a claw-pole linear stepper motor available. Sometimes when installing and adjusting the equipment, the installation and debugging personnel need to make the guide rod perform a short-stroke reciprocating linear motion. However, at this time, the installation and debugging personnel have not connected the coil to the external power supply, and the existing claw-pole linear stepper motor can only make the guide rod perform linear motion after the coil is energized. As a result, the installation and debugging personnel have to connect the wires in advance, affecting the continuity of the installation and debugging work. There is room for further optimization.

[0033] Based on the above technical problems, the present application proposes a manually fine-tuned claw-pole linear stepper motor, wherein the manually fine-tuned claw-pole linear stepper motor has a simple structure, does not involve complex manufacturing processes and expensive materials, and has high economy. At the same time, for manufacturers, the manually fine-tuned claw-pole linear stepper motor provided by the present application is easy to produce and low-cost, which is more conducive to controlling production costs and further conducive to product promotion and use.

[0034] Schematic diagram of a claw-pole linear stepper motor with manual fine adjustment.

[0035] refer to Figures 1 to 7 According to a preferred embodiment of the utility model, a claw-pole linear stepper motor with manual fine adjustment includes a frame assembly 10, a stator assembly 20 and a rotor assembly 30.

[0036] Specifically, Figure 1 and Figure 2 As shown, the skeleton assembly 10 includes a front skeleton 101 and a rear skeleton 102, the stator assembly 20 is arranged between the front skeleton 101 and the rear skeleton 102, the rotor assembly 30 includes a rotating member 301, a sliding member 302 and a magnetic steel 303, the rotating member 301 is rotatably mounted on the skeleton assembly 10 through a bearing, the magnetic steel 303 is sleeved on the rotating member 301 by an interference fit and rotates synchronously with the rotating member 301, and the stator assembly 20 is located on the outside of the magnetic steel 303, the sliding member 302 is slidably arranged on the front skeleton 101, and the sliding member 302 is spirally connected to the rotating member 301, and the end of the rotating member 301 away from the front skeleton 101 is exposed to the outside. In the embodiment of the present application, the way in which one end of the rotating member is exposed to the outside is implemented as follows: the end of the rotating member 301 away from the front skeleton 101 extends out of the rear skeleton 102 by a predetermined distance.

[0037] It should be noted that coils are wound around the front frame 101 and the rear frame 102. When the coils are energized, the magnetic steel 303 rotates circumferentially under the action of the magnetic field and drives the rotating member 301 to rotate circumferentially. Since the sliding member 302 is connected to the rotating member 301 in a spiral transmission, when the rotating member 301 rotates circumferentially, the sliding member 302 reciprocates along the front frame 101. In addition, by making the end of the rotating member 301 away from the sliding member 302 extend out of the rear frame 102 by a predetermined distance, during the installation and debugging process, the installation and debugging personnel can rotate the end of the rotating member 301 exposed to the outside away from the front frame 101 to manually rotate the rotating member 301 when the coil is de-energized, thereby causing the sliding member 302 to reciprocate in a straight line to meet the short-stroke fine-tuning requirements during the installation and debugging process. Compared with the prior art, the installation and debugging system has the advantages of being able to make the sliding member 302 move in a short-stroke straight line when the power is off, which is convenient for debugging.

[0038] Furthermore, in order to facilitate the installation and commissioning personnel to screw the rotating member 301, Figure 1 and Figure 2As shown, the manually fine-tunable claw-pole linear stepper motor also includes a hand-tightening member 40, which is arranged at the end of the rear frame 102 away from the front frame 101. In the embodiment of the present application, the hand-tightening member 40 is sleeved on the rotating member 301, and the hand-tightening member 40 is connected to the rotating member 301, and the connection method can be either a fixed connection or a detachable connection. The fixed connection method includes but is not limited to the hand-tightening member 40 and the rotating member 301 away from the front frame 101. The end is connected by welding, adhesive connection or interference fit to achieve a fixed connection. The detachable connection method includes but is not limited to the end of the rotating member 301 away from the front frame 101 being splined to the hand-tightening member 40. When the hand-tightening member 40 rotates, the rotating member 301 rotates accordingly.

[0039] Furthermore, in order to protect the coils on the skeleton assembly 10, as Figure 1 and Figure 2 As shown, the manually fine-tunable claw-pole linear stepper motor also includes a shell assembly 50, and the shell assembly 50 includes a front shell 501 and a rear shell 502, the front shell 501 is fixedly connected to the front frame 101, and the rear shell 502 is fixedly connected to the rear frame 102, and the two ends of the stator assembly 20 are respectively abutted against the front shell 501 and the rear shell 502. It should be noted that when the front frame 101 is installed on the front shell 501, and the rear frame 102 is installed on the rear shell 502, the front shell 501 and the rear shell 502 are fixedly connected, and the fixed connection method includes but is not limited to welding.

[0040] More specifically, in order to realize that the front frame 101 is installed on the front shell 501 and the rear frame 102 is installed on the rear shell 502, refer to Figure 5 The front housing 501 and the rear housing 502 have a concave cavity 5011 at one end opposite to each other. The bottom wall of the concave cavity 5011 has a through hole 5012 and a plurality of first claw ends 5013 arranged in an annular shape. Figure 3 and Figure 4The front frame 101 and the rear frame 102 have a winding portion 1011 and a penetrating stepped cavity 1012 at opposite ends, the winding portion 1011 is located outside the stepped cavity 1012, the coil is wound on the winding portion 1011, the end of the winding portion 1011 away from the stator assembly 20 has a plurality of insertion holes 1013 arranged in a ring shape, the insertion holes 1013 correspond one to one with the first claw pole 5013, the front frame 101 and the rear frame 102 extend into the concave cavity 5011 of the front shell 501 and the rear shell 502 respectively and pass through the through hole 5012, the winding portion 1011 is placed in the concave cavity 5011, and the first claw pole 5013 passes through the corresponding insertion hole 1013.

[0041] In addition, in order to strengthen the connection between the frame assembly 10 and the shell assembly 50, as shown in FIG. Figure 4 and Figure 5 As shown, the bottom wall of the concave cavity 5011 of the front shell 501 and the rear shell 502 also has a plurality of circular holes 5014 and a plurality of fan-shaped holes 5015, and the winding portion 1011 on the front frame 101 and the rear frame 102 has a plurality of cylindrical protrusions 1014 and a plurality of fan-shaped protrusions 1015 at one end of the insertion hole 1013. When the first claw extreme end 5013 passes through the corresponding insertion hole 1013, the cylindrical protrusion 1014 is inserted into the corresponding circular hole 5014, and the fan-shaped protrusion 1015 is inserted into the corresponding fan-shaped hole 5015.

[0042] Further, to form the relative arrangement of claw poles, as Figure 1 and Figure 6 As shown, the stator assembly 20 includes a first stator core 201 and a second stator core 202. The first stator core 201 and the second stator core 202 have a plurality of second claw poles 2011 arranged in an annular shape at opposite ends. Figure 6 The second claw poles 2011 on the first stator core 201 and the second stator core 202 extend into the step cavity 1012 of the front frame 101 and the rear frame 102 respectively, and the second claw poles 2011 and the corresponding first claw poles 5013 are alternately arranged in the circumferential direction of the step cavity 1012 and face oppositely in the axial direction of the step cavity 1012.

[0043] It should be noted that in order to clamp the stator assembly 20 when the front housing 501 and the rear housing 502 are connected, Figure 6 As shown, the side surfaces of the first stator core 201 and the second stator core 202 have a plurality of extension portions 2012, such as Figure 5As shown, the front housing 501 and the rear housing 502 have a notch 5016 at one end opposite to each other. Figure 6 and Figure 2 When the winding portion 1011 on the front frame 101 and the winding portion 1011 on the rear frame 102 clamp the first stator core 201 and the second stator core 202, the extension portion 2012 extends out of the notch 5016, and the side wall of the extension portion 2012 fits with the side wall of the notch 5016.

[0044] Furthermore, in order to realize that the sliding member 302 only moves axially without rotating circumferentially, as Figure 4 As shown, the end of the stepped cavity 1012 on the front frame 101 away from the stator assembly 20 has an anti-rotation hole 1016, and the hole wall of the anti-rotation hole 1016 has two symmetrically arranged fan-shaped protrusions 10161, as shown in FIG. Figure 1 and Figure 2 As shown, the sliding member 302 has a cylindrical portion 3021, and the side surface of the cylindrical portion 3021 has two symmetrically arranged fan-shaped grooves 3022. The cylindrical portion 3021 passes through the anti-rotation hole 1016, and the fan-shaped protrusion 10161 is slidably disposed in the fan-shaped groove 3022. Since the fan-shaped protrusion 10161 provides a circumferential limit for the sliding member 302, the sliding member 302 can only move axially along the anti-rotation hole 1016.

[0045] Furthermore, in order to realize the spiral transmission connection between the rotating member 301 and the sliding member 302, as Figure 1 As shown, the rotating member 301 has a through hole 3011, and a threaded portion 3012 is provided on the hole wall of the through hole 3011. The sliding member 302 has a threaded rod portion 3023 at one end close to the hand-tightening member 40. The sliding member 302 has one end of the threaded rod portion 3023 passing through the through hole 3011, and the threaded rod portion 3023 is threadedly connected to the threaded portion 3012.

[0046] It should be noted that the screw rod portion 3023 can be manufactured and processed separately, and then the screw rod and the other end of the sliding member 302 can be fixedly connected by welding or other means to realize that the sliding member 302 has the screw rod portion 3023 .

[0047] Furthermore, in order to facilitate the connection of the manually fine-tunable claw-pole linear stepper motor with the outside, as Figure 2As shown, the manually fine-tunable claw-pole linear stepper motor also includes a connecting plate 60, which is located at one end of the front shell 501 away from the rear shell 502, and the connecting plate 60 is sleeved on the front frame 101, and the connecting plate 60 is fixedly connected to the front frame 101, and its fixed connection method includes but is not limited to welding or clamping, and the connecting plate 60 has a plurality of connecting holes 601.

[0048] In summary, the manually fine-tunable claw-pole linear stepper motor according to the embodiment of the present application is explained, which provides the manually fine-tunable claw-pole linear stepper motor with advantages such as short-stroke linear movement in a power-off state and easy debugging.

[0049] It is worth mentioning that in the embodiment of the present application, the claw-pole linear stepper motor with manual fine-tuning has a simple structure, does not involve complex manufacturing processes and expensive materials, and has high economic efficiency. At the same time, for manufacturers, the claw-pole linear stepper motor with manual fine-tuning provided by the present application is easy to produce and has low cost, which is more conducive to controlling production costs and further conducive to product promotion and use.

[0050] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A claw-pole linear stepper motor capable of manual fine-tuning, characterized in that: The claw-pole linear stepper motor capable of manual fine adjustment comprises a frame assembly, the frame assembly comprising a front frame and a rear frame; and a stator assembly, the stator assembly being disposed between the front frame and the rear frame; and A rotor assembly, the rotor assembly includes a rotating member, a sliding member and a magnet, the rotating member is rotatably mounted on the frame assembly, the magnet is sleeved on the rotating member, and the stator assembly is located on the outside of the magnet, the sliding member is slidably arranged on the front frame, and the sliding member is spirally connected to the rotating member, and one end of the rotating member away from the front frame is exposed to the outside.

2. The claw-pole linear stepper motor capable of manual fine adjustment according to claim 1, characterized in that: The manually fine-tunable claw-pole linear stepper motor also includes a hand-tightening member, which is arranged at one end of the rear frame away from the front frame, and is connected to the rotating member. When the hand-tightening member rotates, the rotating member rotates accordingly.

3. The claw-pole linear stepper motor capable of manual fine adjustment according to claim 2, characterized in that: The manually fine-tunable claw-pole linear stepper motor also includes a housing assembly, which includes a front housing and a rear housing. The front housing is fixedly connected to the front frame, and the rear housing is fixedly connected to the rear frame. The two ends of the stator assembly are respectively against the front housing and the rear housing.

4. The claw-pole linear stepper motor capable of manual fine adjustment according to claim 3, characterized in that: The front shell and the rear shell have a concave cavity at one opposite end, and the bottom wall of the concave cavity has a through hole and a plurality of first claw poles arranged in a ring shape. The front frame and the rear frame have a winding portion and a penetrating stepped cavity at one opposite end, and the winding portion is located outside the stepped cavity, and a coil is wound on the winding portion. The end of the winding portion facing away from the stator assembly has a plurality of insertion holes arranged in a ring shape, and the insertion holes correspond to the first claw poles one by one. The front frame and the rear frame extend into the concave cavities of the front shell and the rear shell respectively and pass through the through holes, and the winding portion is placed in the concave cavity, and the first claw pole passes through the corresponding insertion holes.

5. The manually fine-tunable claw-pole linear stepper motor according to claim 4, characterized in that: The stator assembly includes a first stator core and a second stator core, and the ends of the first stator core and the second stator core opposite to each other each have a plurality of second claw poles arranged in a ring shape, and the second claw poles on the first stator core and the second stator core respectively extend into the stepped cavities of the front frame and the rear frame, and the second claw poles are alternately arranged with the corresponding first claw poles and face in opposite directions.

6. The claw-pole linear stepper motor capable of manual fine adjustment according to claim 5, characterized in that: The stepped cavity on the front frame has an anti-rotation hole at one end portion facing away from the stator assembly, the hole wall of the anti-rotation hole has two symmetrically arranged fan-shaped protrusions, the sliding part has a cylindrical portion, the side surface of the cylindrical portion has two symmetrically arranged fan-shaped grooves, the cylindrical portion passes through the anti-rotation hole, and the fan-shaped protrusion is slidably arranged in the fan-shaped groove.

7. The manually fine-tunable claw-pole linear stepper motor according to any one of claims 2 to 6, characterized in that: The rotating part has a through hole, and a threaded portion is provided on the hole wall of the through hole. The sliding part has a screw rod portion at one end close to the hand-tightening part. The sliding part has one end of the screw rod portion passing through the through hole, and the screw rod portion is threadedly connected to the threaded portion.

8. The manually fine-tunable claw-pole linear stepper motor according to any one of claims 3 to 6, characterized in that: The manually fine-tunable claw-pole linear stepper motor further comprises a connecting plate, which is located at one end of the front housing away from the rear housing and is sleeved on the front frame.

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