Motor shaft tapping device

Abstract

The application relates to the field of rotating shaft tapping, and discloses a motor rotating shaft tapping equipment, which comprises a tapping frame and a rotating shaft tapping mechanism. The rotating shaft tapping mechanism is arranged on the upper surface of the tapping frame and is used for tapping the rotating shaft of a motor to be tapped, triggering tapping depth marking at the same time, detecting the wear condition of a tapping tap in cooperation with a standard tapping depth marking length, comparing the standard tapping depth marking length with the marking triggered when a test screw is screwed in, and if the test screw is difficult to screw in, the screwing depth is insufficient, or the marking length does not conform to the standard, it is indicated that the tapping tap may have been worn and needs to be replaced. In this way, the depth marking is automatically triggered while tapping is completed, the test screw and the linkage detection mechanism are provided, the tapping tap state is conveniently and quickly judged, an operator does not need to use a complicated instrument, whether the tapping tap needs to be replaced can be quickly judged beside the equipment, and the tapping quality and the continuous and stable operation of the equipment are ensured.

Description

Technical Field

[0001] The invention relates to the field of rotary shaft tapping, and in particular to a motor rotary shaft tapping device. Background Art

[0002] As an indispensable power source in modern society, electric motors are widely used in various fields, including industry, agriculture, and daily life. The motor shaft, a key component, has a critical impact on its performance and lifespan due to its machining accuracy and quality. Tapping, a crucial process in motor shaft machining, creates internal threads that can be used with fasteners such as screws to connect and secure components.

[0003] According to the Chinese authorized patent announcement number: CN110026624B, a motor shaft tapping device is disclosed, which relates to the field of motor production technology. The key points of its technical solution are: it includes a desktop tapping machine, and the desktop tapping machine includes a workbench; the upper end surface of the workbench is connected to a sliding seat in a sliding direction, and the upper end surface of the sliding seat is provided with a mounting seat. The upper end surface of the mounting seat is provided with a positioning groove for placing a workpiece in a positioning position, and the sliding seat is also provided with a limit assembly for tightly fixing the workpiece; the workbench is also provided with a driving member for driving the sliding seat to move, and the workbench is also provided with a positioning member, which is located on one side of the sliding path of the sliding seat. When the driving member drives the sliding seat to slide and contact the positioning member, the positioning groove is located below the tap of the desktop tapping machine, so that the tap can be aligned with the circular groove of the workpiece for tapping. The provision of a sliding seat, positioning grooves, and limit assemblies makes it easier to clamp and position the workpiece, thereby making the tapping operation more convenient and also improving the overall production efficiency. However, this tapping equipment still has shortcomings. The most direct wear part of the tapping tap is its cutting edge. As the shaft material is continuously cut, the sharp cutting edge will gradually become blunt and flat. Operators need to regularly disassemble the tapping tap for visual inspection or use special measuring tools to measure the size of its cutting part. This method cannot reflect the wear status in real time, and the process is cumbersome, which can easily delay the replacement time. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a motor shaft tapping device to solve the above problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A motor shaft tapping device, comprising:

[0006] Tapping rack;

[0007] Rotary shaft tapping mechanism; the rotary shaft tapping mechanism is arranged on the left and right sides of the upper surface of the tapping frame, and the rotary shaft tapping mechanism is used to trigger the tapping depth marking mark while tapping the tapping motor shaft and to detect the wear of the tapping tap in accordance with the standard tapping depth marking length. The rotary shaft tapping mechanism includes a connecting slide rail, a connecting slider, a tapping drive frame, a drive motor, a tapping tap, a linkage arm, an L-shaped fixing rod, a tapping depth prompt cylinder, a colored rolling ball and a test screw head. The tapping electric push rod starts to move, and the fixed end of the tapping electric push rod is fixed on the outer support leg, and its free end pushes the tapping drive frame. Driven by the tapping drive frame, the rotating tapping tap is aligned with the surface of the motor shaft and starts to cut inward to form a thread. When the tapping tap reaches the preset tapping depth, the specific structure on the linkage arm or the connecting ring will trigger the specific position of the tapping depth prompt cylinder. At this time, the red ink inside the prompt cylinder The colored ball embedded in the inner side of the tapping tap will come into contact with it. As the tapping tap rotates, the colored ball will also roll and print the red ink on a specific position of the motor shaft, forming a mark corresponding to the tapping depth. After the motor shaft is tapped, the direction of the motor shaft is turned so that the tapping end is on the right. The test screw head is screwed into the threaded hole that has been tapped on the left side, and the depth and smoothness of its screwing in can be observed. At the same time, it can be observed whether the linkage mechanism on the right side can also trigger the marking during the screwing in of the test screw head. By comparing the standard tapping depth marking length (triggered by the left tapping) with the marking triggered when the test screw head is screwed in (or not triggered), as well as the difficulty and depth of the test screw head screwing in, the wear condition of the left tapping tap can be comprehensively judged. If the test screw head is difficult to screw in, the screwing depth is insufficient, or the marking length does not meet the standard, it indicates that the tapping tap may be worn and needs to be replaced.

[0008] Feeding guide mechanism; the feeding guide mechanism is arranged on the rear side of the upper surface of the tapping frame, and the feeding guide mechanism is used to automatically guide the motor shaft to the tapping area.

[0009] Preferably, the number of the connecting slide rails is set to two, and the two connecting slide rails are respectively fixedly connected to the left and right sides of the upper surface of the tapping frame, and the upper surfaces of the left and right connecting slide rails are both transmission-connected with connecting sliders, and the upper surfaces of the two connecting sliders are both fixedly connected with the tapping drive frames, and tapping electric push rods are provided on the outer sides of the two tapping drive frames, and the free ends of the tapping electric push rods are transmission-connected with the tapping drive frames, and the fixed ends of the tapping electric push rods are fixedly connected to the upper surface of the outer support legs, and the upper surface of the tapping drive frame on the left is fixedly connected with a driving motor, and the output end of the driving motor is transmission-connected with a tapping tap.

[0010] Preferably, a linkage arm is fixedly connected to the upper surface of the tapping drive frame on the left side, and a connecting rod is fixedly connected to the inner side of the end of the linkage arm away from the tapping drive frame, and the end of the connecting rod is fixedly connected to the outer side of the connecting ring away from the tapping drive frame, and an L-shaped fixing rod is fixedly connected to the outer side of the end of the connecting ring away from the connecting rod, and a tapping depth indication tube is fixedly connected to the outer side of the end of the connecting ring away from the L-shaped fixing rod, and a colored rolling ball is embedded in the inner surface of the tapping depth indication tube, and red ink is filled inside the tapping depth indication tube, and an arc baffle is fixedly connected to the outer side of the end of the connecting ring close to the L-shaped fixing rod.

[0011] Preferably, a test screw head is rotatably connected to the inner side of the tapping drive frame on the right side, a hand-cranked disk is provided on the outer side of the tapping drive frame, and the hand-cranked disk is transmission-connected to the test screw head, a connecting ring is provided on the rear side of the test screw head, and a tapping depth indication tube is provided on the inner side of the connecting ring, and the two tapping depth indication tubes on the left and right are symmetrically alternately arranged.

[0012] Preferably, the feeding guide mechanism includes a support frame, a rotating shaft placement frame, a bevel guide plate, a front baffle, a rotating shaft guide platform, a raised end, a V-shaped groove and a micro electric push rod. The rotating shaft placement frame is arranged on the upper surface of the tapping frame. The four corners of the outer surface of the rotating shaft placement frame are fixedly connected to the support frame. The height of the two front support frames is lower than that of the two rear support frames. The front end of the support frame is fixedly connected to the front baffle.

[0013] Preferably, the front side of the front baffle is fixedly connected to a bevel guide plate, the end of the bevel guide plate away from the front baffle is fitted on the rear side of the upper surface of the shaft limiting clamp and fixedly connected to the upper surface of the shaft guide platform, the front side of the shaft guide platform is fixedly connected to a protruding end, the rear side of the shaft limiting clamp is provided with a groove, the lower end of the shaft limiting clamp is arranged on the upper surface of the tapping platform, and the lower end of the tapping platform is fixedly connected to the upper surface of the tapping frame.

[0014] Preferably, the shaft guide platform and the shaft limiting clamps are each provided with a V-shaped groove on one side close to each other, and the motor shaft to be tapped is provided transversely through the V-shaped groove.

[0015] Preferably, a limiting electric push rod is provided on the front side of the rotating shaft limiting fixture, the free end of the limiting electric push rod is transmission-connected to the rotating shaft limiting fixture, and the fixed end of the limiting electric push rod is fixedly connected to the upper surface of the outer support leg.

[0016] Preferably, the lower end of the tapping frame is fixedly connected to a fixed steel frame.

[0017] Preferably, a bearing is provided in the middle of the connecting ring.

[0018] The present invention provides a motor shaft tapping device. Compared with the prior art, it has the following advantages:

[0019] 1. In the present invention, by providing a rotary tapping mechanism, when the rotary shaft of the motor to be tapped is placed and firmly fixed in a suitable position of the tapping frame, the driving motor on the left tapping drive frame starts to run, and the tapping tap directly connected to its output end rotates at high speed. At the same time or later, the tapping electric push rod starts to move, and the fixed end of the tapping electric push rod is fixed on the outer support leg, and its free end pushes the tapping drive frame. The rotating tapping tap is driven by the tapping drive frame to align with the surface of the motor shaft and start to cut inward to form a thread. When the tapping tap reaches a preset tapping depth, a specific structure on the linkage arm or the connecting ring will trigger a specific position of the tapping depth prompt cylinder. At this time, the red ink inside the prompt cylinder will contact the colored rolling ball embedded in its inner side. Due to the rotation of the tapping tap, the colored rolling ball also rolls and prints the red ink on the specific position of the motor shaft to form a mark corresponding to the tapping depth. After the motor shaft is tapped, the motor is rotated The axis is rotated so that its tapping end is on the right, and the test screw head is screwed into the threaded hole that has been tapped on the left side to observe its screwing depth and smoothness. At the same time, it is possible to observe whether the linkage mechanism on the right side can also trigger the marking during the screwing process of the test screw head. By comparing the standard tapping depth marking length (triggered by the left tap) with the marking triggered when the test screw head is screwed in (or not triggered), as well as the difficulty and depth of the test screw head screwing in, the wear condition of the left tap can be comprehensively judged. If the test screw head is difficult to screw in, the screwing depth is insufficient, or the marking length does not meet the standard, it indicates that the tapping tap may be worn and needs to be replaced. In this way, the depth mark is automatically triggered while the tapping is completed. A matching test screw head and linkage detection mechanism are provided to facilitate and quickly judge the status of the tapping tap. The operator can quickly judge whether the tapping tap needs to be replaced next to the equipment without using complex instruments, thereby ensuring the tapping quality and the continuous and stable operation of the equipment.

[0020] 2. In the present invention, through the provided feeding guide mechanism, the operator stacks the motor shaft that needs to be tapped later in the shaft placement rack, and the micro electric push rod pushes the motor shaft at the front position in the shaft placement rack, and the micro electric push rod pushes the motor shaft to move up so that its height is higher than the front baffle. Under the action of gravity, the shaft slides downward along the inclined guide plate. After the shaft slides down the inclined guide plate, it enters the shaft placement rack area and continues to move forward until its shaft body is captured by the V-shaped grooves on both sides. The raised end on the shaft guide platform helps to guide the shaft to enter the V-shaped groove of the shaft limit fixture more accurately. When the motor shaft After being initially positioned by the V-groove, the limit electric push rod in the front starts to move. The fixed end of the limit electric push rod is fixed on the outer support leg, and its free end pushes the shaft limit clamp forward. The shaft limit clamp moves forward, and the V-groove on it fits more closely with the V-groove of the shaft guide platform, thereby firmly clamping the motor shaft between the two V-grooves to ensure that its position is stable and motionless during the tapping process. The feeding guide mechanism realizes partial automation of the shaft from input to positioning and clamping, reduces the operations of manual handling and manual alignment, greatly reduces the labor intensity of operators, and improves the automation level of the overall production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front three-dimensional structure of a motor shaft tapping device proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the rear three-dimensional structure of a motor shaft tapping device proposed by the present invention;

[0023] Figure 3 This is a schematic diagram of the right side three-dimensional structure of a tapping frame in a motor shaft tapping device proposed by the present invention;

[0024] Figure 4 This is a schematic diagram of the rear three-dimensional structure of a tapping frame in a motor shaft tapping device proposed by the present invention;

[0025] Figure 5 This is a schematic diagram of the left side three-dimensional structure of a tapping frame in a motor shaft tapping device proposed by the present invention;

[0026] Figure 6 This is a schematic structural diagram of the left half of the rotary shaft tapping mechanism in the motor rotary shaft tapping device proposed by the present invention;

[0027] Figure 7 This is a structural schematic diagram of the right plate portion of the rotary shaft tapping mechanism in the motor rotary shaft tapping device proposed by the present invention;

[0028] Figure 8 This is a schematic diagram of a partial exploded structure of a tapping table in a motor shaft tapping device proposed by the present invention;

[0029] Legend:

[0030] 1. Tapping rack; 2. Fixed steel frame; 3. Rotating shaft tapping mechanism; 301. Connecting slide rail; 302. Connecting slider; 303. Tapping drive rack; 304. Driving motor; 305. Tapping tap; 306. Linking arm; 307. Connecting rod; 308. Connecting ring; 309. Bearing; 310. L-shaped fixing rod; 311. Tapping depth indicator tube; 312. Coloring ball; 313. Arc baffle; 314. Hand crank; 3 15. Test screw head; 4. Motor shaft to be tapped; 5. Feeding guide mechanism; 501. Support frame; 502. Shaft placement frame; 503. Inclined guide plate; 504. Front baffle; 505. Shaft guide platform; 506. Raised end; 507. V-shaped slot; 508. Micro electric push rod; 6. External support foot; 7. Tapping electric push rod; 8. Limit electric push rod; 9. Shaft limit fixture; 10. Tapping table; 11. Groove. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figures 1-8 The present invention provides two technical solutions, specifically including the following embodiments:

[0033] Embodiment 1: A motor shaft tapping device, comprising: a tapping frame 1; a shaft tapping mechanism 3; the shaft tapping mechanism 3 is arranged on the left and right sides of the upper surface of the tapping frame 1, and the shaft tapping mechanism 3 is used to trigger the tapping depth marking mark while tapping the tapping motor shaft 4 and detect the wear of the tapping tap 305 in accordance with the standard tapping depth marking length. The shaft tapping mechanism 3 includes a connecting slide rail 301, a connecting slider 302, a tapping drive frame 303, a drive motor 304, a tapping tap 305, a linkage arm 306, an L-shaped fixing rod 310, a tapping depth prompt tube 311, a colored rolling ball 312 and a test screw head 3 15. The number of connecting slide rails 301 is set to two, and the two connecting slide rails 301 are respectively fixedly connected to the left and right sides of the upper surface of the tapping frame 1. The upper surfaces of the left and right connecting slide rails 301 are both transmission-connected with connecting sliders 302. The upper surfaces of the two connecting sliders 302 are both fixedly connected with tapping drive frames 303. Tapping electric push rods 7 are provided on the outer sides of the two tapping drive frames 303. The free ends of the tapping electric push rods 7 are transmission-connected with the tapping drive frames 303. The fixed ends of the tapping electric push rods 7 are fixedly connected to the upper surface of the outer support leg 6. The upper surface of the left tapping drive frame 303 is fixedly connected with a driving motor 304. The driving motor The output end of the machine 304 is connected to the tapping tap 305, and the upper surface of the left tapping drive frame 303 is fixedly connected to a linkage arm 306. The inner side of the end of the linkage arm 306 away from the tapping drive frame 303 is fixedly connected to a connecting rod 307. The end of the connecting rod 307 away from the tapping drive frame 303 is fixedly connected to the outer side of a connecting ring 308. The outer side of the end of the connecting ring 308 away from the connecting rod 307 is fixedly connected to an L-shaped fixing rod 310. The outer side of the end of the connecting ring 308 away from the L-shaped fixing rod 310 is fixedly connected to a tapping depth prompt cylinder 311. The inner surface of the tapping depth prompt cylinder 311 is embedded with a coloring roller Ball 312, the tapping depth indication tube 311 is filled with red ink, the outer side of the connecting ring 308 close to the L-shaped fixed rod 310 is fixedly connected with an arc-shaped baffle 313, the inner side of the right tapping drive frame 303 is rotatably connected with a test screw head 315, the outer side of the tapping drive frame 303 is provided with a hand-cranked disk 314, and the hand-cranked disk 314 is transmission-connected to the test screw head 315, the rear side of the test screw head 315 is provided with a connecting ring 308, the inner side of the connecting ring 308 is provided with a tapping depth indication tube 311, the left and right tapping depth indication tubes 311 are symmetrically alternately arranged, and a bearing 309 is provided in the middle of the connecting ring 308.

[0034] During operation, the tapping motor shaft 4 is placed and firmly fixed in a suitable position on the tapping frame 1, the driving motor 304 on the left tapping drive frame 303 starts to run, and the tapping cone 305 directly connected to its output end rotates at high speed. At the same time or later, the tapping electric push rod 7 starts to move. The fixed end of the tapping electric push rod 7 is fixed on the outer support leg 6, and its free end pushes the tapping drive frame 303. Driven by the tapping drive frame 303, the rotating tapping cone 305 is aligned with the surface of the motor shaft and starts to The thread is cut inwards and formed. When the tapping cone 305 reaches the preset tapping depth, the specific structure on the linkage arm 306 or the connecting ring 308 triggers the specific position of the tapping depth prompt tube 311. At this time, the red ink inside the prompt tube will contact the colored rolling ball 312 embedded inside the inside. Due to the rotation of the tapping cone 305, the colored rolling ball 312 also rolls and prints the red ink on the specific position of the motor shaft, forming a mark corresponding to the tapping depth. After the motor shaft is tapped, the motor shaft is turned to the right position. The rotating shaft is turned so that its tapping end is on the right side, and the test screw head 315 is screwed into the threaded hole completed by tapping on the left side to observe the depth and smoothness of its screwing in. At the same time, it is possible to observe whether the linkage mechanism on the right side can also trigger the marking during the screwing in process of the test screw head 315. By comparing the standard tapping depth marking length triggered by the left tapping and the marking or non-triggered situation when the test screw head 315 is screwed in, as well as the difficulty and depth of the screwing in of the test screw head 315, the wear condition of the left tapping tap 305 can be comprehensively judged. If the test screw head 315 is difficult to screw in, the screwing depth is insufficient, or the marking length does not meet the standard, it indicates that the tapping tap 305 may be worn and needs to be replaced. In this way, the depth mark is automatically triggered while the tapping is completed, and a matching test screw head 315 and a linkage detection mechanism are provided, which facilitates and quickly judges the status of the tapping tap 305. The operator does not need to use complex instruments to quickly judge whether the tapping tap 305 needs to be replaced next to the equipment, thereby ensuring the tapping quality and the continuous and stable operation of the equipment.

[0035] Embodiment 2: On the basis of embodiment 1, a feeding guide mechanism 5; the feeding guide mechanism 5 is arranged on the rear side of the upper surface of the tapping frame 1, and the feeding guide mechanism 5 is used to automatically guide the motor shaft to the tapping area, and the feeding guide mechanism 5 includes a support frame 501, a shaft placement frame 502, a bevel guide plate 503, a front baffle 504, a shaft guide platform 505, a raised end 506, a V-shaped groove 507 and a micro electric push rod 508, and the shaft placement frame 502 is arranged on the upper surface of the tapping frame 1, and the four corners of the outer surface of the shaft placement frame 502 are fixedly connected to the support frame 501, and the height of the two front support frames 501 is lower than the two rear support frames 501, and the front end of the support frame 501 is fixedly connected to the front baffle 504, and the front side of the front baffle 504 is fixedly connected to The inclined guide plate 503, the end of the inclined guide plate 503 away from the front baffle 504 is fitted on the rear side of the upper surface of the shaft limiting fixture 9 and fixedly connected to the upper surface of the shaft guide platform 505, the front side of the shaft guide platform 505 is fixedly connected with a raised end 506, the rear side of the shaft limiting fixture 9 is provided with a groove 11, the lower end of the shaft limiting fixture 9 is provided on the upper surface of the tapping table 10, and the lower end of the tapping table 10 is fixedly connected to the upper surface of the tapping frame 1, the shaft guide platform 505 and the shaft limiting fixture 9 are both provided with a V-shaped groove 507 on the side close to each other, and the motor shaft 4 to be tapped is horizontally penetrated inside the V-shaped groove 507, a limited electric push rod 8 is provided on the front side of the shaft limiting fixture 9, and the free end of the limited electric push rod 8 is transmission connected to the shaft limiting fixture 9 Then, the fixed end of the limit electric push rod 8 is fixedly connected to the upper surface of the outer support leg 6, and the lower end of the tapping frame 1 is fixedly connected to the fixed steel frame 2. The operator stacks the motor shaft that needs to be tapped later in the shaft placement frame 502, and the micro electric push rod 508 pushes the motor shaft at the front position inside the shaft placement frame 502. The micro electric push rod 508 pushes the motor shaft to move up so that its height is higher than the front baffle 504. Under the action of gravity, the shaft slides downward along the inclined guide plate 503. After the shaft slides down the inclined guide plate 503, it will enter the shaft placement frame 502 area and continue to move forward until its shaft body is captured by the V-shaped grooves 507 on both sides. The raised end 506 on the shaft guide platform 505 helps to guide the shaft to enter the shaft more accurately. In the V-groove 507 of the limiting clamp 9, when the motor shaft is initially positioned by the V-groove 507, the limiting electric push rod 8 in the front starts to move, and the fixed end of the limiting electric push rod 8 is fixed on the outer support leg 6, and its free end pushes the shaft limiting clamp 9 forward. The shaft limiting clamp 9 moves forward, and the V-groove 507 on it fits more closely with the V-groove 507 of the shaft guide platform 505, thereby firmly clamping the motor shaft between the two V-grooves 507, ensuring that its position is stable and motionless during the tapping process. The feeding guide mechanism 5 realizes partial automation of the shaft from input to positioning and clamping, reduces the operations of manual handling and manual alignment, greatly reduces the labor intensity of operators, and improves the automation level of the overall production line.

[0036] The above only describes preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application should be included in the protection scope of the present application.

Claims

1. A motor shaft tapping device, characterized in that: include: Tapping stand (1); A rotary tapping mechanism (3); the rotary tapping mechanism (3) is arranged on the left and right sides of the upper surface of the tapping frame (1); the rotary tapping mechanism (3) is used to trigger the tapping depth marking mark while tapping the tapping motor shaft (4), and detect the wear of the tapping tap (305) in accordance with the standard tapping depth marking length; the rotary tapping mechanism (3) comprises a connecting rail (301), a connecting slider (302), a tapping drive frame (303), a drive motor (304), a tapping tap (305), a linkage arm (306), an L-shaped fixing rod (310), a tapping depth prompt tube (311), a colored rolling ball (312) and a test screw head (315); A feeding guide mechanism (5); the feeding guide mechanism (5) is arranged on the rear side of the upper surface of the tapping frame (1), and the feeding guide mechanism (5) is used to automatically guide the motor shaft to the tapping area; The number of the connecting slide rails (301) is set to two, and the two connecting slide rails (301) are fixedly connected to the left and right sides of the upper surface of the tapping frame (1), respectively. The upper surfaces of the left and right connecting slide rails (301) are both connected in a transmission manner with a connecting slider (302), and the upper surfaces of the two connecting sliders (302) are both fixedly connected to a tapping drive frame (303). The outer sides of the two tapping drive frames (303) are both provided with a tapping electric push rod (7), and the free end of the tapping electric push rod (7) is connected in a transmission manner to the tapping drive frame (303). The fixed end of the tapping electric push rod (7) is fixedly connected to the upper surface of the outer leg (6). The upper surface of the left tapping drive frame (303) is fixedly connected to a driving motor (304), and the output end of the driving motor (304) is connected in a transmission manner to a tapping cone (305). The upper surface of the tapping drive frame (303) on the left side is fixedly connected to a linkage arm (306), the inner side of one end of the linkage arm (306) away from the tapping drive frame (303) is fixedly connected to a connecting rod (307), the outer side of one end of the connecting rod (307) away from the tapping drive frame (303) is fixedly connected to the outer side of a connecting ring (308), the outer side of one end of the connecting ring (308) away from the connecting rod (307) is fixedly connected to an L-shaped fixing rod (310), the outer side of one end of the connecting ring (308) away from the L-shaped fixing rod (310) is fixedly connected to a tapping depth prompt tube (311), the inner surface of the tapping depth prompt tube (311) is embedded with a colored rolling ball (312), the interior of the tapping depth prompt tube (311) is filled with red ink, and the outer side of one end of the connecting ring (308) close to the L-shaped fixing rod (310) is fixedly connected to an arc-shaped baffle (313); A test screw head (315) is rotatably connected to the inner side of the tapping drive frame (303) on the right side, a hand crank (314) is provided on the outer side of the tapping drive frame (303), and the hand crank (314) is transmission-connected to the test screw head (315), a connecting ring (308) is provided on the rear side of the test screw head (315), and a tapping depth prompt tube (311) is provided on the inner side of the connecting ring (308), and the two tapping depth prompt tubes (311) on the left and right are symmetrically arranged alternately.

2. The motor shaft tapping device according to claim 1, characterized in that: The feeding guide mechanism (5) comprises a support frame (501), a rotating shaft placement frame (502), an inclined guide plate (503), a front baffle (504), a rotating shaft guide platform (505), a raised end (506), a V-shaped slot (507) and a micro electric push rod (508), wherein the rotating shaft placement frame (502) is arranged on the upper surface of the tapping frame (1), and the four corners of the outer surface of the rotating shaft placement frame (502) are fixedly connected to the support frame (501), the two front support frames (501) are lower in height than the two rear support frames (501), and the front end of the support frame (501) is fixedly connected to the front baffle (504).

3. The motor shaft tapping device according to claim 2, characterized in that: The front side of the front baffle (504) is fixedly connected to a bevel guide plate (503), one end of the bevel guide plate (503) away from the front baffle (504) is arranged on the rear side of the upper surface of the rotating shaft limiting fixture (9) and is fixedly connected to the upper surface of the rotating shaft guide platform (505), the front side of the rotating shaft guide platform (505) is fixedly connected to a protruding end (506), the rear side of the rotating shaft limiting fixture (9) is provided with a groove (11), the lower end of the rotating shaft limiting fixture (9) is arranged on the upper surface of the tapping platform (10), and the lower end of the tapping platform (10) is fixedly connected to the upper surface of the tapping frame (1).

4. The motor shaft tapping device according to claim 3, characterized in that: The rotating shaft guide platform (505) and the rotating shaft limiting fixture (9) are both provided with a V-shaped groove (507) on the side close to each other, and the motor rotating shaft (4) to be tapped is provided transversely through the inside of the V-shaped groove (507).

5. The motor shaft tapping device according to claim 3, characterized in that: A limiting electric push rod (8) is provided on the front side of the rotating shaft limiting fixture (9), the free end of the limiting electric push rod (8) is transmission-connected to the rotating shaft limiting fixture (9), and the fixed end of the limiting electric push rod (8) is fixedly connected to the upper surface of the outer support leg (6).

6. The motor shaft tapping device according to claim 1, characterized in that: The lower end of the tapping frame (1) is fixedly connected to a fixed steel frame (2).

7. The motor shaft tapping device according to claim 1, characterized in that: A bearing (309) is provided in the middle of the connecting ring (308).

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