Rotating shaft input shaft tooling

Abstract

The present invention relates to a tooling for inserting a rotor shaft, which includes a positioning component and a stamping part. The positioning component includes a positioning mandrel, an anti-misassembly mechanism for the shaft, and a limit protection cover. The positioning mandrel is vertically arranged, and a positioning groove for installing the rotor shaft is formed on the upper end surface. The anti-misassembly mechanism for the shaft is arranged on one side in the middle of the positioning groove of the positioning mandrel and only allows the rotor shaft to pass through in the correct installation direction. The limit protection cover is arranged outside the positioning mandrel and can move longitudinally along the positioning mandrel. The stamping part is arranged above the limit protection cover and the stamping direction is vertically downward. The limit protection cover can cooperate with the rotor housing to align the rotor shaft with the mounting hole on the rotor housing. This tooling has an anti-misassembly mechanism for the shaft, enabling the assembly worker to clearly judge the situation of the rotor shaft being misassembled in the reverse direction into the positioning groove, thereby preventing the incorrect assembly of the rotor shaft and the rotor housing. At the same time, it has a guiding function to accurately install the rotor shaft onto the rotor housing.

Description

Technical Field

[0001] The invention relates to the field of motor assembly tooling, and in particular to the field of rotor shaft insertion tooling. Background Art

[0002] like Figure 1 As shown in the figure, the rotor shaft diameter of a small power external rotor motor is relatively thin, generally between about 3 and 12 mm, with a retaining ring groove at one end and no retaining ring groove at the other end. Inserting the rotor shaft is a very critical process. The shaft head often enters in the wrong direction, causing unnecessary waste or easily causing the coaxiality of the shaft, the dimensional accuracy of the mating parts and the cylindricity to produce radial runout (eccentricity) on the surface. After the finished motor is assembled, the rotor will have a large amount of imbalance, which will cause assembly difficulties and even damage to parts, loose bearings or inflexible operation, and high bearing temperature. This will greatly affect the performance and reliability of the motor.

[0003] The Chinese utility model with publication number CN 208445443 U discloses a motor rotor shaft insertion tool, comprising a motor rotor, a rotating shaft, a bottom plate, a top plate and a guide member, wherein a cushion block is provided at the center of the bottom plate, the motor rotor is placed on the cushion block, support columns are provided at both ends of the bottom plate, a top plate is provided at the upper end of the support column, an arched hole penetrating the top plate is provided at the center of the top plate, the guide member has an arched cross section, the arched hole and the guide member are concentrically arranged, a fan-shaped gasket is provided at the bottom of the motor rotor, two positioning holes are provided on the fan-shaped gasket, a fan-shaped matching piece is provided on the cushion block, the fan-shaped matching piece and the fan-shaped gasket form a concentric ring, two positioning columns are provided on the fan-shaped matching piece, the two positioning columns are respectively matched with a positioning hole, a rotating shaft hole penetrating the motor rotor is provided at the center of the motor rotor, and the motor rotor and the rotating shaft hole are arranged concentrically up and down.

[0004] Although the prior art uses various methods to ensure that the shaft and the rotor are concentric, and that the coaxiality and verticality of the rotor itself are not changed when the shaft is vertically pressed into the rotor, there is no behavioral restraint means to prevent and correct the situation where the rotor shaft is installed in reverse. Summary of the invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a rotor shaft insertion tool with a guiding function, which can remind the assembler of the reverse installation of the rotor shaft and can achieve precise alignment of the rotor shaft and the rotor shell.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0007] Rotating shaft input shaft tooling, comprising a positioning assembly and a stamping part. The positioning assembly includes a positioning mandrel, an anti-misassembly mechanism for the shaft, and a limit protection cover. The positioning mandrel is vertically arranged, and its upper end face is provided with a positioning groove for installing the rotating shaft. The anti-misassembly mechanism for the shaft is arranged on one side in the middle of the positioning groove of the positioning mandrel and only allows the rotating shaft to pass through in the correct installation direction. The limit protection cover is arranged outside the positioning mandrel and can move longitudinally along the positioning mandrel. The stamping part is placed above the limit protection cover, and the stamping direction is vertically downward. The limit protection cover can cooperate with the rotor housing to align the rotating shaft with the mounting hole on the rotor housing. The positioning mandrel with a positioning groove on its upper end face and the anti-misassembly mechanism for the shaft enable the rotating shaft to correspond to the rotor housing and the stamping part at the correct angle and direction. The limit protection cover for installing and positioning the rotor housing is movably arranged outside the positioning mandrel to align the rotating shaft with the mounting hole on the rotor housing. The stamping part is placed above the limit protection cover and can press the rotor housing into the mating position with the rotating shaft, enabling the rotating shaft to enter the mounting hole. Correct installation means that the end of the rotating shaft with a snap ring groove is inserted into the positioning groove, while reverse installation means that the end of the rotating shaft without a snap ring groove is inserted into the positioning groove.

[0008] Further, the working end of the anti-misassembly mechanism for the shaft includes a detection part for cooperating with the detection of the snap ring groove and a blocking part for blocking the passage of the rotating shaft during reverse installation. By arranging the detection part and the blocking part at the working end of the anti-misassembly mechanism for the shaft, it is possible to judge whether the rotating shaft is installed correctly or reversely according to whether there is a snap ring groove at the inserted end of the rotating shaft. If a snap ring groove is detected at the inserted end of the rotating shaft, the blocking part blocks the passage of the rotating shaft. If no snap ring groove is detected at the inserted end of the rotating shaft, the blocking part blocks the further entry of the rotating shaft. At this time, the assembly worker can easily judge whether the rotating shaft is installed reversely according to the length of the rotating shaft that has not entered the positioning groove.

[0009] Furthermore, the anti-reverse mechanism for mis-installing the shaft includes a retaining frame and an anti-reverse block; the anti-reverse block is arranged on the retaining frame through a rotating shaft at one end thereof, and the other end is provided with a first protrusion for detecting a retaining ring groove and a second protrusion for blocking the rotor shaft from passing through from top to bottom, and the second protrusion is located in the positioning groove; when the rotor shaft is installed in the normal state, the lower end surface of the rotor shaft abuts against the second protrusion, driving the anti-reverse block to rotate, so that the first protrusion passes through the retaining ring groove on the rotor shaft and rotates away from the positioning groove; when the rotor shaft is installed in reverse, the lower end surface of the rotor shaft abuts against the second protrusion, driving the anti-reverse block to rotate, and the first protrusion abuts against the side wall of the rotor shaft. When the rotor shaft is installed in the normal direction, one end of the rotor shaft with the retaining spring groove is inserted into the positioning groove. When the lower end surface of the rotor shaft moves to the position of the anti-misinstallation mechanism, the lower end surface of the rotor shaft first abuts against the second protrusion, pushing the anti-reverse block to rotate, and the first protrusion thereon moves along an arc. At this time, the retaining spring groove on the rotor shaft can just provide space for the arc of the first protrusion, so that the anti-reverse block can complete the rotation until the first protrusion and the second protrusion are completely out of the positioning groove, and there is no obstruction in the direction of movement of the rotor shaft, and the rotor shaft can continue to move downward; when the rotor shaft is installed in reverse, the end of the rotor shaft without the retaining spring groove Insert the positioning groove. When the lower end face of the rotor shaft moves to the position of the anti-axis mis-installation reverse mechanism, the lower end face of the rotor shaft first abuts against the second protrusion, pushing the anti-reverse block to rotate, and the first protrusion on it moves along an arc. At this time, since there is no retaining spring groove at the corresponding rotor shaft position, the first protrusion has no movement space and can only abut against the side wall of the rotor shaft to lock, causing the entire anti-reverse block to be unable to continue to rotate, and the second protrusion on it can also not continue to rotate, blocking the direction of movement of the rotor shaft. At this time, the assembler can easily observe that the height of the rotor is higher than when it is installed correctly and determine that the rotor shaft is in a reverse installation state. In other words, a retaining spring groove is provided at the end of the rotor shaft. When the retaining spring groove moves to the anti-axis mis-installation reverse mechanism, it provides a rotation space for the first protrusion on the anti-reverse block, and the shaft passes smoothly. On the contrary, when the other end of the shaft does not have a retaining spring groove, it cannot provide a rotation space for the first protrusion, the anti-reverse block cannot rotate in conjunction, and the shaft cannot be pressed down.

[0010] Furthermore, a guide surface is provided on the lower end surface of the anti-rebound block, and a first spring is provided below the anti-rebound block so that the upper end of the spring always contacts the guide surface during the rotation of the anti-rebound block. After the rotor shaft moves out of the positioning groove, the anti-rebound block needs to return to the initial position to complete the detection and blocking functions again. The first spring needs to be provided to provide elastic force to the anti-rebound block so that it can return to the initial position. In addition, because the direction of movement of the anti-rebound block is constantly changing during the rotation process, the contact point between the spring and the anti-rebound block is also changing, so a guide surface is provided to make it easier for the upper end of the first spring and the anti-rebound block to slide relative to each other.

[0011] Further, a limiting groove for accommodating the first spring is provided in the vertical direction on the cage. During the rotation of the anti-reversal block, relative sliding always occurs between the upper end of the first spring and the guiding surface of the anti-reversal block. The anti-reversal block always exerts a force on the upper end of the first spring along the rotation direction of the anti-reversal block. To keep the first spring stable, a vertical limiting groove is provided to accommodate the first spring. When the anti-reversal block rotates, the spring can only move along the limiting groove, and the spring abuts against the lower end surface of the anti-reversal block, so that the spring can be kept in place during use without dislocation.

[0012] Further, a cavity is provided inside the stamping part. A guiding part is provided in the cavity, and the lower end of the guiding part passes through the lower wall of the cavity and aligns with the rotor shaft. A second spring is provided in the cavity. One end of the second spring abuts against the upper wall of the chamber, and the other end abuts against the upper end surface of the guiding part. Based on the stamping part, the guiding part is provided so that before stamping, the guiding part first passes through the mounting groove on the rotor housing and abuts against the rotor shaft, and then the rotor is arranged inside the stamping part with the guiding part. During the stamping process, the guiding part retreats into the stamping part under the reaction force of the rotor shaft and the action of the spring, so that the rotor housing can smoothly move from the guiding part onto the rotor shaft to complete the assembly smoothly.

[0013] Further, the limiting protection cover includes a first shaft sleeve part and a second shaft sleeve part. The side wall of the first shaft sleeve part can be adapted to the inner side wall of the rotor housing. The top end of the first shaft sleeve part can abut against the inner top wall of the rotor housing. A flange is provided at the bottom end of the first shaft sleeve part to abut against the lower end surface of the rotor housing. The second shaft sleeve part is in close fit with the side wall of the positioning mandrel. By the top end and the bottom end of the first shaft sleeve part respectively abutting against the rotor housing, and then the second shaft sleeve part being in close fit with the positioning mandrel, the positioning between the rotor housing and the positioning groove of the positioning mandrel is realized, so that the mounting groove on the rotor housing is aligned with the rotor shaft. At the same time, the limiting protection cover also moves along the direction of the positioning groove during movement, so the situation of inaccurate positioning will not occur during the movement process.

[0014] Further, a stepped surface is provided inside the limiting protection cover, and a limiting block is provided at the upper end of the positioning mandrel. A third spring is provided outside the positioning mandrel. One end of the third spring abuts against the spring pad block, and the other end abuts against the flange on the protection cover. Through the cooperation between the stepped surface provided inside the limiting protection cover and the limiting block at the upper end of the positioning mandrel, the limiting protection cover cannot be disengaged upward. By providing a third spring below the limiting protection cover, the limiting protection cover can move downward along the positioning mandrel during stamping, and after the stamping is completed and the stamping part rises, the rotor shaft can be ejected by the rebound of the spring.

[0015] Furthermore, the positioning groove penetrates through the positioning mandrel. A first cushion block is arranged at the bottom of the positioning groove, and a second cushion block for adjusting the height of the first cushion block and capable of being pulled and pushed along the length direction is arranged below the first cushion block. A cushion block for adjusting the length of the processed rotor shaft is arranged at the bottom of the positioning groove, and a second cushion block with an inclined slope is arranged below the first cushion block. When the second cushion block is replaced, the height of the upper end surface of the first cushion block can be changed, so that the length of the rotor shaft that can be processed is changed.

[0016] With the above technical solution of the present invention, during installation, the rotor shaft is first correctly installed into the positioning groove through the anti-misassembly mechanism for the shaft, and then the rotor housing is installed on the limit protection cover. After the guiding part is inserted into the installation groove on the rotor housing, the upper end surface of the rotor shaft abuts against it, and the stamping part presses the rotor housing onto the rotor shaft along the direction of the guiding part. This tooling has an anti-misassembly mechanism for the shaft, enabling the assembly worker to clearly judge the situation of the rotor shaft being misassembled into the positioning groove in the reverse direction, thereby preventing the incorrect assembly of the rotor shaft and the rotor housing. At the same time, it has a guiding function to make the installation of the rotor shaft onto the rotor housing more accurate. During the whole process, the operator does not need to pay attention, nor does he need experience and professional knowledge, and can directly and correctly complete the correct operation without error. Description of the Drawings

[0017] Figure 1 It is a structural illustration of the rotor shaft

[0018] Figure 2 It is an illustration of the present invention.

[0019] Figure 3 It is an illustration of the anti-reverse block.

[0020] Figure 4 It is an illustration of the present invention during correct installation.

[0021] Figure 5 It is an illustration of the present invention during reverse installation. Detailed Embodiment

[0022] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings. These 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 thus should not be construed as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

[0025] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. 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.

[0026] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0027] Such as Figures 2 to 5As shown, the rotor shaft input shaft tooling includes a positioning component and a stamping part. The positioning component includes a positioning mandrel 1, an anti-axis misloading and reverse mechanism 2, and a limit protection cover 3. The positioning mandrel is vertically arranged, and its upper end face is provided with a positioning groove 4 for installing the rotor shaft. The anti-axis misloading and reverse mechanism is arranged on one side in the middle of the positioning groove of the positioning mandrel. The function of the anti-axis misloading and reverse mechanism is to prevent the reverse installation of the rotor shaft. The limit protection cover is arranged outside the positioning mandrel and can move longitudinally along the positioning mandrel. The stamping part 5 is arranged above the limit protection cover, and the stamping direction is vertically downward. The limit protection cover can cooperate with the rotor housing, and the rotor shaft 6 is aligned with the installation hole 7 on the rotor housing 16.

[0028] To install the rotor shaft in the correct direction into the positioning groove, the anti-axis misloading and reverse mechanism can be set up to prevent misloading and reverse installation according to the characteristics that when the rotor shaft is installed in the correct direction, there is a snap ring groove at the front end of its insertion end, while there is no snap ring groove at the front end of its insertion end when installed in the reverse direction. A detection part can be set to detect whether there is a snap ring groove at the insertion end of the rotor shaft, and another part can be set to enable the assembler to judge whether the rotor shaft is installed in the reverse direction. The following is the preferred implementation.

[0029] As Figures 2 to 5 shown, the working end of the anti-axis misloading and reverse mechanism includes a detection part for cooperating to detect the snap ring groove 30 and a blocking part for blocking the passage of the rotor shaft during reverse installation.

[0030] In this embodiment, when it is detected that there is no snap ring groove during reverse installation, the blocking part blocks the further entry of the rotor shaft, so that the length of the rotor shaft not entering the installation groove is significantly longer than that during correct installation. Thus, the assembler can judge that the rotor shaft is installed in the reverse direction. There are also other implementation methods, such as setting a display part. When the detection part detects that there is no snap ring groove on the rotor shaft, the display part changes to remind the assembler that the rotor shaft is installed in the reverse direction.

[0031] The anti-axis misloading and reverse mechanism includes a detection part and a blocking part. By detecting whether there is a snap ring groove at the corresponding position of the insertion end of the rotor shaft, it is determined whether the blocking part blocks the further entry of the rotor shaft. The implementation methods that can be adopted include electronically detecting the snap ring groove of the rotor shaft and then transmitting a signal to a mechanically controlled telescopic shaft. However, considering the very small size of the anti-axis misloading and reverse mechanism, the cost may be very high and the accuracy may be problematic. Now, the detection part and the blocking part are arranged on the same anti-reverse block, so that the detection part and the blocking part on the same anti-reverse block are linked, and the presence or absence of the snap ring groove determines whether the blocking part can continue to move. Without a snap ring groove, it does not move, and the blocking part plays a blocking role. The following is the preferred implementation.

[0032] As Figures 2 to 5As shown, the anti-misassembly mechanism for the shaft includes a cage and an anti-reversal block; the anti-reversal block is arranged on the cage 10 through a rotating shaft 9 at one end thereof, and a first convex block 11 is arranged at the other end from top to bottom as a detection part and a second convex block 12 is arranged as a blocking part, and the second convex block is located in the positioning groove; when the rotor shaft is correctly installed, the lower end surface of the rotor shaft abuts against the second convex block, driving the anti-reversal block to rotate, so that the first convex block passes through the snap ring groove on the rotor shaft, and the working end of the anti-reversal block rotates away from the positioning groove; when the rotor shaft is reversely installed, the lower end surface of the rotor shaft abuts against the second convex block, driving the anti-reversal block to rotate, and the first convex block abuts against the side wall of the rotor shaft. In this embodiment, the first convex block serves as the detection part, and the second convex block serves as the blocking part. The information of whether there is a snap ring groove is transmitted from the first convex block to the second convex block through the rotational linkage of the anti-reversal block, determining whether the second convex block will continue to move and allowing the rotor shaft to pass through. When the rotor shaft is correctly inserted into the installation groove, there is an inclined surface at the insertion end of the rotor shaft, and the inclined surface can help the anti-reversal block to rotate when the rotor shaft abuts against the second convex block, and at the same time make it smoother for the first convex block to pass through the position of the snap ring groove.

[0033] To enable the working end of the anti-reversal block to return to the initial position after the rotor shaft is withdrawn, a spring needs to be arranged below the working end of the anti-reversal block, so that there is a restoring force to drive the working end of the anti-reversal block to rotate back to the initial position after the rotor shaft is withdrawn. To make the spring and the anti-reversal block slide relative to each other more smoothly, a guiding surface cooperating with the spring should be arranged on the anti-reversal block. The following is a preferred embodiment.

[0034] As Figures 2 to 5 shown, a guiding surface 13 is arranged on the anti-reversal block, a first spring 14 is arranged below the anti-reversal block, and the upper end of the spring always abuts against the guiding surface during the rotation of the anti-reversal block.

[0035] To enable the spring to deform in the vertical direction, a limiting post can be arranged inside the spring and a limiting groove can be arranged outside the spring to prevent the spring from deforming in the horizontal direction. Here, since the anti-reversal block that abuts against the spring undergoes a rotational motion, only a vertical limiting groove can be arranged here to enable the spring to deform in the vertical direction. The following is a preferred embodiment.

[0036] As Figure 3 shown, a limiting groove 15 for accommodating the first spring 14 is arranged in the vertical direction at the position corresponding to the first spring 14 on the cage 10.

[0037] To enable the stamping part to press the rotor housing against the rotor shaft more accurately during the stamping process, a guiding part needs to be arranged to abut against the rotor shaft first and then stamp the rotor housing along the direction of the guiding part. The following is a preferred embodiment.

[0038] As shown Figures 4 to 5 in the figure, a cavity is provided inside the stamping part, a guiding part 28 is provided inside the cavity, and the lower end of the guiding part passes through the lower wall of the cavity and is aligned with the rotor shaft; a second spring 18 is provided inside the cavity, one end of the second spring abuts against the upper wall of the chamber, and the other end abuts against the upper end surface of the guiding part.

[0039] To enable the limit protection cover to position the rotor housing so that the mounting groove on the rotor housing can be aligned with the rotor shaft, the limit protection cover can be adapted to several points on the rotor housing to fix the cooperation relationship between the rotor housing and the limit protection cover. At the same time, the limit protection cover can have a close cooperation relationship with the positioning mandrel, so as to ensure that the horizontal relative position between the positioning mandrel and the rotor housing remains unchanged. The following is the specific implementation manner.

[0040] As shown Figures 4 to 5 in the figure, the limit protection cover includes a first bushing part 19 and a second bushing part 20; the first bushing part can be adapted to the inner side wall of the rotor housing, the top end of the first bushing part can abut against the inner top wall of the rotor housing, and a flange 21 is provided at the bottom end of the first bushing part to abut against the lower end surface of the rotor housing; the second bushing part is in fit with the side wall of the positioning mandrel.

[0041] To enable the limit protection cover to be movably arranged at the upper end part of the positioning mandrel without coming off, a limit cooperation relationship needs to be provided between the positioning mandrel and the limit protection cover. At the same time, in order to cooperate with the guiding part and the stamping part, a spring should be provided below the limit protection cover. The following is the preferred implementation manner.

[0042] As shown Figures 4 to 5 in the figure, a step surface 22 is provided inside the limit protection cover, and a limit block 23 is provided at the upper end of the positioning mandrel; a third spring 25 is provided outside the positioning mandrel, one end of the third spring abuts against the spring pad 24, and the other end abuts against the flange 21 on the protection cover.

[0043] In actual production, a machine is often used to assemble rotor shafts of various lengths. Therefore, the height of the bottom of the positioning shaft groove should be adjustable. The method of setting different heights of pads at the bottom and then replacing them can be used to adjust the height of its upper end surface. The following is the preferred implementation manner.

[0044] As shown Figure 2 、 Figure 4 and Figure 5As shown, the positioning groove passes through the positioning mandrel 1. A first cushion block 26 is arranged at the bottom of the positioning groove. A second cushion block 27 which can be pulled along the length direction to adjust the height of the first cushion block is arranged below the first cushion block. One end of the second cushion block is provided with an inclined surface 29 for guiding when replacing the second cushion block.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. Rotor shaft input shaft tooling, including a positioning component and a stamping part, characterized in that: The positioning component includes a positioning mandrel, an anti-misassembly and reverse mechanism for the shaft, and a limit protection cover; the positioning mandrel is vertically arranged and a positioning groove for installing the rotor shaft is opened on the upper end surface, the anti-misassembly and reverse mechanism for the shaft is arranged on one side of the middle of the positioning groove of the positioning mandrel and only allows the rotor shaft to pass through in the correct installation direction, the limit protection cover is arranged outside the positioning mandrel and can move longitudinally along the positioning mandrel, and the stamping part is arranged above the limit protection cover and the stamping direction is vertically downward; The working end of the anti-misassembly and reverse mechanism for the shaft includes a detection part for cooperating with the detection of the snap ring groove and a blocking part for blocking the rotor shaft from passing through during reverse installation; The anti-misassembly and reverse mechanism for the shaft includes a cage and an anti-reverse block; the anti-reverse block is arranged on the cage through a rotating shaft at one end, and a first convex block and a second convex block are arranged from top to bottom at the other end, and the second convex block is in the positioning groove; when the rotor shaft is correctly installed, the lower end surface of the rotor shaft abuts against the second convex block, driving the anti-reverse block to rotate, the first convex block moves along an arc, and the snap ring groove on the rotor shaft just provides space for the arc movement of the first convex block, so that the anti-reverse block can complete the rotation until the first convex block and the second convex block completely leave the positioning groove; When the rotor shaft is reversely installed, the lower end surface of the rotor shaft abuts against the second convex block, driving the anti-reverse block to rotate, and the first convex block abuts against the side wall of the rotor shaft; A guiding surface is arranged on the anti-reverse block, and a first spring is arranged below the anti-reverse block, so that the upper end of the first spring always abuts against the guiding surface during the rotation of the anti-reverse block; A limiting groove for accommodating the first spring is arranged on the cage in the vertical direction; A cavity is arranged inside the stamping part, a guiding part is arranged in the cavity and the lower end of the guiding part passes through the lower wall of the cavity and is aligned with the rotor shaft; a second spring is arranged in the cavity, one end of the second spring abuts against the upper wall of the cavity, and the other end abuts against the upper end surface of the guiding part.

2. The rotor shaft input shaft tooling according to claim 1, characterized in that: The limit protection cover includes a first shaft sleeve part and a second shaft sleeve part; the side wall of the first shaft sleeve part can be adapted to the inner side wall of the rotor housing, the top end of the first shaft sleeve part can abut against the inner top wall of the rotor housing, and a flange is arranged at the bottom end of the first shaft sleeve part and can abut against the lower end surface of the rotor housing; the second shaft sleeve part is attached to the side wall of the positioning mandrel.

3. The rotor shaft input shaft tooling according to claim 2, characterized in that: A step surface is arranged inside the limit protection cover, and a limit block is arranged at the upper end of the positioning mandrel; a third spring is arranged outside the positioning mandrel, one end of the third spring abuts against the spring pad block, and the other end abuts against the flange on the limit protection cover.

4. The rotor shaft input shaft tooling according to claim 1, characterized in that: The positioning groove penetrates through the positioning mandrel, a first cushion block is arranged at the bottom of the positioning groove, and a second cushion block that can be pulled longitudinally along the length direction is arranged below the first cushion block for adjusting the height of the first cushion block.

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