Biaxial Motor Spline Groove Detection Device and Its Usage Method

Abstract

The present invention belongs to the field of detection technology, and particularly relates to a biaxial motor spline groove detection device and a using method thereof. The biaxial motor spline groove detection device includes: at least one approximately "U"-shaped guiding strip, on which a bushing is inserted, and the convex rib of the bushing is located within the notch of the guiding strip; a first detection piece and a second detection piece, which are respectively arranged on the side wall and the bottom surface of the guiding strip; and a driving mechanism, which is used to drive the guiding strip carrying the bushing to move along the to-be-detected spline groove of the motor shaft. During the movement of the guiding strip, it is detected whether the groove width and / or groove depth of the spline groove is too small. When the biaxial motor spline groove detection device detects the spline groove, the guiding strip drives the bushing to move towards the motor shaft, and the bushing and the motor shaft are coaxial. At this time, if the guiding strip cannot extend into the spline groove, it indicates that the groove width and / or groove depth of the spline groove is too small.

Description

Technical Field

[0001] The present invention belongs to the technical field of detection, and particularly relates to a biaxial motor spline groove detection device and a using method thereof. Background Art

[0002] An electric drying rack is generally driven by a motor to lift and lower. Since there is a load on the electric drying rack, a self-locking function needs to be configured for the motor.

[0003] In the related art, in order to achieve the self-locking function of the motor when it stops, generally a bushing that can only slide axially is sleeved on the motor shaft, and a damping piece is arranged on the outer side of one end of the bushing. When the motor stops, the bushing is forced to slide away from the motor shaft, so as to abut against the damping piece to achieve self-locking.

[0004] In order to better achieve the self-locking function, a certain gap needs to be left between the spline groove on the motor shaft and the convex rib on the inner wall of the bushing to facilitate the sliding of the bushing; at the same time, this gap cannot be too large, otherwise the convex rib will collide with the spline groove every time it starts.

[0005] In the actual production process, the bushing can be customized, so the dimensional accuracy of the convex rib is very high. While the biaxial motor is generally a standard motor purchased externally, and there is no spline groove on the shaft of the standard motor, and it needs to be grooved manually later, and its size will have errors.

[0006] Therefore, how to detect the size of the spline groove manually opened on the biaxial motor is a technical problem that needs to be solved urgently by those skilled in the art.

[0007] It should be noted that the above information disclosed in this background art part is only used to understand the background art of the concept of this application. Therefore, the above description is not considered as information of the prior art. Summary of the Invention

[0008] The embodiments of the present disclosure at least provide a biaxial motor spline groove detection device and a using method thereof.

[0009] In a first aspect, the embodiments of the present disclosure provide a biaxial motor spline groove detection device, which includes: at least one approximately "U"-shaped guiding strip for inserting a bushing, and the convex rib of the bushing is located in the notch of the guiding strip; a first detection piece and a second detection piece respectively arranged on the side wall and the bottom surface of the guiding strip; and a driving mechanism for driving the guiding strip carrying the bushing to move along the to-be-detected spline groove of the motor shaft. During the movement of the guiding strip, it is detected whether the groove width and / or the groove depth of the spline groove is too small through the guiding strip; and when the guiding strip is withdrawn after moving to a threshold value, it is detected whether the groove width and / or the groove depth of the spline groove is too large through the first detection piece and the second detection piece.

[0010] In an alternative embodiment, the size of the guiding bar is the same as the standard gap between the convex rib and the spline groove; during the movement of the guiding bar, if the groove width and / or groove depth of the spline groove to be detected is too small, the guiding bar abuts against the end face of the motor shaft.

[0011] In an alternative embodiment, both the first detection piece and the second detection piece include: a linkage rod; one end of the linkage rod is provided with a pressure-receiving protrusion, and the other end is provided with a limiting boss; the pressure-receiving protrusion protrudes from the outer wall of the guiding bar, and the limiting boss protrudes from the inner wall of the notch; when the guiding bar is withdrawn after moving to the threshold, if the groove width and / or groove depth of the spline groove to be detected is too large, the guiding bar drives the bushing to be withdrawn synchronously through the limiting boss protruding from the inner wall of the notch.

[0012] In an alternative embodiment, mounting grooves are formed in both the side wall and the bottom surface of the guiding bar to respectively mount the first detection piece and the second detection piece; a relief hole is formed in the bottom of the mounting groove; the limiting boss protrudes from the inner wall of the notch after passing through the relief hole.

[0013] In an alternative embodiment, the linkage rod is rotatably arranged in the mounting groove through a rotating shaft, and a torsion spring is sleeved on the rotating shaft to drive the pressure-receiving protrusion to protrude from the outer wall of the guiding bar and the limiting boss to protrude from the inner wall of the notch.

[0014] In an alternative embodiment, the mounting groove extends beyond the end face of the convex rib so that the relief hole is located outside the end face of the convex rib.

[0015] In a second aspect, the embodiments of the present disclosure provide a method for using a double-shaft motor spline groove detection device as described above, which includes: inserting a bushing on the guiding bar; moving the guiding bar carrying the bushing along the spline groove to be detected of the motor shaft through a driving mechanism; during the movement of the guiding bar, detecting whether the groove width and / or groove depth of the spline groove is too small through the guiding bar; when the guiding bar is withdrawn after moving to the threshold, detecting whether the groove width and / or groove depth of the spline groove is too large through the first detection piece and the second detection piece on the guiding bar.

[0016] In an alternative embodiment, the method of inserting the bushing on the guiding bar includes: placing the convex rib of the bushing in the notch of the guiding bar and making the end face of the convex rib abut against the limiting boss extending into the notch.

[0017] In an alternative embodiment, the size of the guiding bar is the same as the standard gap between the convex rib and the spline groove.

[0018] In an alternative embodiment, the guiding bar drives the bushing to move coaxially with the motor shaft.

[0019] The beneficial effects of the present invention are as follows. When the double - shaft motor spline groove detection device and its usage method are used to detect the spline groove, the guide bar drives the bushing to move towards the motor shaft, and the bushing and the motor shaft are coaxial. At this time, if the guide bar cannot extend into the spline groove, it indicates that the groove width and / or groove depth of the spline groove is too small; if the guide bar can extend into the spline groove, the guide bar drives the bushing to move along the spline groove together until it moves to the threshold value, that is, the bushing has moved to the installation position. At this time, if the guide bar is pulled out and the bushing is pulled out along with the guide bar, it indicates that the groove width and / or groove depth of the spline groove is too large. The double - shaft motor spline groove detection device detects whether the groove width and / or groove depth of the spline groove is too small or too large, so as to eliminate unqualified spline grooves and ensure that the dimensions of qualified spline grooves are within a preset range.

[0020] Other features and advantages of the present invention will be described in the following specification, and part of them will become obvious from the specification or be understood by implementing the present invention. The objectives and other advantages of the present invention are achieved and obtained by the structures specifically pointed out in the specification, claims, and drawings.

[0021] To make the above - mentioned objectives, features, and advantages of the present invention more obvious and understandable, specific preferred embodiments are hereby given, and in conjunction with the accompanying drawings, the detailed description is as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following - described drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 Structural schematic diagram of a double - shaft motor spline groove detection device provided by an embodiment of the present disclosure;

[0024] Figure 2 Structural schematic diagram of a guide bar with a detection piece provided by an embodiment of the present disclosure;

[0025] Figure 3 Structural schematic diagram of a guide bar carrying a bushing provided by an embodiment of the present disclosure;

[0026] Figure 4 Structural schematic diagram when the spline groove is too shallow provided by an embodiment of the present disclosure;

[0027] Figure 5 Structural schematic diagram when the spline groove is too deep provided by an embodiment of the present disclosure;

[0028] Figure 6Schematic diagram of a structure when the spline groove is too wide provided by an embodiment of the present disclosure;

[0029] Figure 7 Schematic diagram of a structure when the depth of the spline groove is qualified provided by an embodiment of the present disclosure;

[0030] Figure 8 Schematic diagram of a structure of an installation groove provided by an embodiment of the present disclosure;

[0031] Figure 9 Schematic diagram of a structure of a standard gap provided by an embodiment of the present disclosure.

[0032] In the figure:

[0033] Guide bar 1, notch 11, installation groove 12, avoidance hole 13;

[0034] Bushing 2, convex rib 21;

[0035] First detection piece 3, linkage rod 31, compression protrusion 32, limit boss 33;

[0036] Second detection piece 4;

[0037] Motor shaft 5, spline groove 51;

[0038] Standard gap 6. Detailed implementation manners

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, in the drawings, for the purpose of effectively describing the technical content, the thickness of components may be exaggerated or reduced.

[0041] The following will describe in detail some embodiments of the present invention with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments may be combined with each other.

[0042] As Figures 1 to 6As shown, at least one embodiment provides a biaxial motor spline groove detection device, which includes: at least one approximately "U"-shaped guide bar 1, on which a bushing 2 is inserted, and the rib 21 of the bushing 2 is located within the notch 11 of the guide bar 1; a first detection piece 3 and a second detection piece 4, which are respectively arranged on the side wall and the bottom surface of the guide bar 1; and a driving mechanism for driving the guide bar 1 carrying the bushing 2 to move along the to-be-detected spline groove 51 of the motor shaft 5; wherein during the movement of the guide bar 1, it is detected whether the groove width and / or groove depth of the spline groove 51 is too small; and when the guide bar 1 is withdrawn after moving to a threshold value, it is detected whether the groove width and / or groove depth of the spline groove 51 is too large through the first detection piece 3 and the second detection piece 4.

[0043] In this embodiment, there is only one spline groove 51 on the motor shaft 5, so only one guide bar 1 is provided. Since the size of the bushing 2 is qualified, the rib 21 and the notch 11 are in clearance fit.

[0044] Specifically, when detecting the spline groove 51, the guide bar 1 drives the bushing 2 to move towards the motor shaft 5, and the bushing 2 and the motor shaft 5 are coaxial. At this time, if the guide bar 1 cannot extend into the spline groove 51, it indicates that the groove width and / or groove depth of the spline groove 51 is too small; if the guide bar 1 can extend into the spline groove 51, then the guide bar 1 drives the bushing 2 to move along the spline groove 51 together until it moves to the threshold value, that is, the bushing 2 has moved to the installation position. At this time, when the guide bar 1 is withdrawn, if the bushing 2 is withdrawn following the guide bar 1, it indicates that the groove width and / or groove depth of the spline groove 51 is too large; this biaxial motor spline groove detection device detects whether the groove width and / or groove depth of the spline groove 51 is too small or too large, so as to eliminate unqualified spline grooves 51 and ensure that the dimensions of qualified spline grooves 51 are within a preset range.

[0045] As Figure 4 and Figure 9 shown, in some embodiments, the size of the guide bar 1 is the same as the standard clearance 6 between the rib 21 and the spline groove 51; during the movement of the guide bar 1, if the groove width and / or groove depth of the to-be-detected spline groove 51 is too small, the guide bar 1 abuts against the end face of the motor shaft 5.

[0046] Specifically, the size of the rib 21 is qualified, and the size of the guide bar 1 is qualified, so the guide bar 1 abutting against the end face of the motor shaft 5 indicates that the size of the spline groove 51 is unqualified; among them, Figure 4 is a schematic structural diagram when the spline groove is too shallow, and the schematic structural diagram when the spline groove is too narrow is similar in principle.

[0047] As Figure 5 、 Figure 6 、 Figure 7As shown, in some embodiments, both the first detection piece 3 and the second detection piece 4 include: a linkage rod 31; one end of the linkage rod 31 is provided with a pressure receiving protrusion 32, and the other end is provided with a limiting boss 33; the pressure receiving protrusion 32 protrudes from the outer wall of the guiding strip 1, and the limiting boss 33 protrudes from the inner wall of the notch 11; when the guiding strip 1 is withdrawn after moving to the threshold, if the groove width and / or groove depth of the spline groove 51 to be detected is too large, the guiding strip 1 drives the bushing 2 to be withdrawn synchronously through the limiting boss 33 protruding from the inner wall of the notch 11.

[0048] Specifically, when the guiding strip 1 can extend into the spline groove 51, it at least indicates that the groove width and / or groove depth of the spline groove 51 is not too small; if the groove width and / or groove depth of the spline groove 51 is qualified, the pressure receiving protrusion 32 will be squeezed, thereby driving the limiting boss 33 to retract to release the limitation on the convex rib 21. At this time, when the guiding strip 1 is withdrawn, it will not bring out the bushing 2; if the groove width and / or groove depth of the spline groove 51 is too large, the pressure receiving protrusion 32 will not be squeezed, and the limiting boss 33 still protrudes from the inner wall of the notch 11. At this time, when the guiding strip 1 is withdrawn, it will drive the bushing 2 to be withdrawn synchronously.

[0049] As Figure 8 As shown, in some embodiments, mounting grooves 12 are formed on both the side wall and the bottom surface of the guiding strip 1 to respectively mount the first detection piece 3 and the second detection piece 4; an avoidance hole 13 is formed at the bottom of the mounting groove 12; the limiting boss 33 protrudes from the inner wall of the notch 11 after passing through the avoidance hole 13.

[0050] In some embodiments, the linkage rod 31 is rotatably arranged in the mounting groove 12 through a rotating shaft, and a torsion spring is sleeved on the rotating shaft to drive the pressure receiving protrusion 32 to protrude from the outer wall of the guiding strip 1 and the limiting boss 33 to protrude from the inner wall of the notch 11.

[0051] Optionally, in addition to the torsion spring, an elastic sheet can also be provided. The elastic sheet is arranged between the pressure receiving protrusion 32 and the mounting groove 12 to push the pressure receiving protrusion 32 to protrude from the outer wall of the guiding strip 1.

[0052] In some embodiments, the mounting groove 12 extends beyond the end face of the convex rib 21 so that the avoidance hole 13 is located outside the end face of the convex rib 21, that is, the pressure receiving protrusion 32 is located inside the end face of the convex rib 21, and the limiting boss 33 is located outside the end face of the convex rib 21.

[0053] At least one embodiment further provides a method of using a biaxial motor spline groove detection device, which includes: inserting a bushing 2 on a guide bar 1; moving the guide bar 1 carrying the bushing 2 along the to-be-detected spline groove 51 of the motor shaft 5 through a driving mechanism; during the movement of the guide bar 1, detecting whether the groove width and / or groove depth of the spline groove 51 is too small through the guide bar 1; when the guide bar 1 is withdrawn after moving to a threshold value, detecting whether the groove width and / or groove depth of the spline groove 51 is too large through the first detection piece 3 and the second detection piece 4 on the guide bar 1.

[0054] In some embodiments, the method of inserting the bushing 2 on the guide bar 1 includes: placing the rib 21 of the bushing 2 into the notch 11 of the guide bar 1, and making the end face of the rib 21 abut against the limiting boss 33 extending into the notch 11.

[0055] In some embodiments, the size of the guide bar 1 is the same as the standard gap between the rib 21 and the spline groove 51.

[0056] In some embodiments, the guide bar 1 drives the bushing 2 to move coaxially with the motor shaft 5.

[0057] For the specific structure and implementation process of the biaxial motor spline groove detection device, refer to the relevant discussions in the above embodiments, and details are not repeated here.

[0058] In summary, when the biaxial motor spline groove detection device and its usage method are used to detect the spline groove 51, the guide bar 1 drives the bushing 2 to move towards the motor shaft 5, and the bushing 2 and the motor shaft 5 are coaxial. At this time, if the guide bar 1 cannot extend into the spline groove 51, it indicates that the groove width and / or groove depth of the spline groove 51 is too small; if the guide bar 1 can extend into the spline groove 51, the guide bar 1 drives the bushing 2 to move along the spline groove 51 together until it moves to the threshold value, that is, the bushing 2 has moved to the installation position. At this time, when the guide bar 1 is withdrawn, if the bushing 2 is withdrawn following the guide bar 1, it indicates that the groove width and / or groove depth of the spline groove 51 is too large; the biaxial motor spline groove detection device detects whether the groove width and / or groove depth of the spline groove 51 is too small or too large, so as to eliminate unqualified spline grooves 51 and ensure that the dimensions of qualified spline grooves 51 are within a preset range.

[0059] In this document, when it is mentioned that a first component is located on a second component, this may mean that the first component can be directly formed on the second component, or a third component can be inserted between the first component and the second component.

[0060] In this document, when an element or layer is referred to as being "on," "joined to," "connected to," "attached to," or "coupled to" another element or layer, it can be directly on, joined, connected, attached, or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly joined to," "directly connected to," "directly attached to," or "directly coupled to" another element or layer, there may be no intervening elements or layers. Other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between" versus "directly between," "adjacent" versus "directly adjacent," etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0061] In this document, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." modify the entire list of elements when following a list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0062] The terms used herein are for the purpose of describing particular example configurations only and are not intended to be limiting. As used herein, the singular articles "a," "an," and "the" may also be intended to include the plural forms, unless clearly stated otherwise herein. The terms "comprises," "comprising," and "having" are inclusive and thus specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as necessarily requiring them to be performed in the particular order discussed or illustrated, unless specifically identified as an order of performance. Additional or alternative steps may be employed.

[0063] As used herein, phrases such as "in one embodiment," "according to one embodiment," "in some embodiments," etc., generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," etc., are used "as an example, instance, or illustration." Any embodiment, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other embodiments, aspects, or designs. Instead, the use of the terms "example," "exemplary," etc., is intended to present concepts in a concrete manner.

[0064] In the description of the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, terms such as "first", "second" and other numerical terms used herein do not imply an order or sequence unless explicitly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer or section discussed above may be referred to as the second element, component, region, layer or section.

[0066] Spatially relative terms, such as "inner", "outer", "below", "beneath", "lower", "above", "upper", etc., may be used herein to facilitate the description of one element or feature's relationship to another element or feature as illustrated in the figures. Except for the orientation depicted in the figures, spatially relative terms are intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is turned over, an element described as "below" or "beneath" another element or feature will then be oriented "above" the other element or feature. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein are to be interpreted accordingly.

[0067] In the above discussion, unless otherwise stated, when used to describe a numerical value, the terms "about", "approximately", "substantially", etc. mean a variation of + / −10% of that value.

[0068] Based on the inspiration of the ideal embodiments of the present invention as described above, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A double-axis motor spline groove detection device, characterized in that Comprising: At least one approximately "U"-shaped guide bar (1) for inserting a bushing (2), with the convex rib (21) of the bushing (2) located within the notch (11) of the guide bar (1); A first detection piece (3) and a second detection piece (4), respectively arranged on the side wall and the bottom surface of the guide bar (1); and A driving mechanism for driving the guide bar (1) carrying the bushing (2) to move along the to-be-detected spline groove (51) of the motor shaft (5); Wherein During the movement of the guide bar (1), it is detected whether the groove width and / or groove depth of the spline groove (51) is too small through the guide bar (1); and When the guide bar (1) is withdrawn after moving to a threshold value, it is detected whether the groove width and / or groove depth of the spline groove (51) is too large through the first detection piece (3) and the second detection piece (4); The size of the guide bar (1) is the same as the standard clearance between the convex rib (21) and the spline groove (51); During the movement of the guide bar (1), if the groove width and / or groove depth of the to-be-detected spline groove (51) is too small, the guide bar (1) abuts against the end face of the motor shaft (5); Both the first detection piece (3) and the second detection piece (4) include: a linkage rod (31); wherein One end of the linkage rod (31) is provided with a pressure-receiving protrusion (32), and the other end is provided with a limit boss (33); The pressure-receiving protrusion (32) protrudes from the outer wall of the guide bar (1), and the limit boss (33) protrudes from the inner wall of the notch (11); When the guide bar (1) is withdrawn after moving to a threshold value, if the groove width and / or groove depth of the to-be-detected spline groove (51) is too large, the guide bar (1) drives the bushing (2) to be withdrawn synchronously through the limit boss (33) protruding from the inner wall of the notch (11).

2. The dual-axis motor spline groove detection device according to claim 1, characterized in that Mounting grooves (12) are respectively formed on the side wall and the bottom surface of the guide bar (1) for mounting the first detection piece (3) and the second detection piece (4); wherein An avoidance hole (13) is formed at the bottom of the mounting groove (12); The limit boss (33) protrudes from the inner wall of the notch (11) after passing through the avoidance hole (13).

3. The dual-axis motor spline groove detection device according to claim 2, characterized in that The linkage rod (31) is rotationally arranged in the mounting groove (12) through a rotating shaft, and a torsion spring is sleeved on the rotating shaft to drive the pressure-receiving protrusion (32) to protrude from the outer wall of the guide bar (1) and the limit boss (33) to protrude from the inner wall of the notch (11).

4. The dual-axis motor spline groove detection device according to claim 3, characterized in that The mounting groove (12) extends beyond the end face of the convex rib (21) so that the avoidance hole (13) is located outside the end face of the convex rib (21).

5. A method for using a biaxial motor spline groove detection device according to any one of claims 1-4, characterized in that, Comprising: Inserting a bushing (2) on the guide bar (1); Moving the guide bar (1) carrying the bushing (2) along the to-be-detected spline groove (51) of the motor shaft (5) through a driving mechanism; During the movement of the guide bar (1), detecting whether the groove width and / or groove depth of the spline groove (51) is too small through the guide bar (1); When the guide bar (1) is withdrawn after moving to the threshold, it is detected whether the groove width and / or groove depth of the spline groove (51) is too large by the first detection piece (3) and the second detection piece (4) on the guide bar (1).

6. The method for using the biaxial motor spline groove detection device according to claim 5, characterized in that The method for inserting the bushing (2) on the guide bar (1) includes Placing the rib (21) of the bushing (2) in the notch (11) of the guide bar (1), and making the end face of the rib (21) abut against the limiting boss (33) extending into the notch (11).

7. The method for using the biaxial motor spline groove detection device according to claim 6, characterized in that The size of the guide bar (1) is the same as the standard gap between the rib (21) and the spline groove (51).

8. The method for using the biaxial motor spline groove detection device according to claim 7, characterized in that The guide bar (1) drives the bushing (2) to move coaxially with the motor shaft (5).

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