Rotating shaft press-fitting structure

Abstract

The utility model relates to the technical field of automobile part assembling, and discloses a rotating shaft press-fitting structure which comprises a top plate, a stand column used for supporting the top plate, a linear driver downwards arranged on the top plate, a lifting seat arranged below the linear driver, a pressure sensor arranged on the lifting seat and a pressure head assembly arranged at the bottom of the lifting seat. The pressing head assembly comprises a pressing shaft inserting column vertically extending to be arranged at the bottom of the lifting base, a supporting arm arranged on the pressing shaft inserting column and a finger air cylinder arranged on the supporting arm, an inserting hole extending in the axial direction is formed in the bottom face of the pressing shaft inserting column, and a clamping block used for stretching into the side clamping hole to clamp the rotating shaft in the inserting hole is arranged on a clamping finger of the finger air cylinder. The pressing head assembly is fully improved according to the mounting section structure of the rotating shaft, circumferential pre-positioning is achieved through cooperation of the fan-shaped hole and the top end of the rotating shaft, then the finger air cylinder controls the clamping block to adjust the circumferential position precision of the rotating shaft and clamp the rotating shaft, and the inserting precision of the rotating shaft is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts assembly, in particular to a rotating shaft press-fitting structure. Background Art

[0002] In the automatic shift mechanism of automobiles, the shift hub is a key component, which is used to control and realize the switching between different gears. The shift hub is usually composed of a set of gears or racks, which are connected by moving or rotating to change the transmission ratio and realize the shifting operation of the vehicle under different speed and load conditions.

[0003] See Figure 1 As shown, in order to detect the real-time position of the shift hub 1, the shift hub 1 needs to be press-fitted onto the rotating shaft, and the sensor is connected to the rotating shaft through transmission, thereby detecting the real-time position signal in real time and feeding it back to the control system.

[0004] In fact, the end of the rotating shaft 2 connected to the sensor will form a mounting cut surface 21, and the circumferential mounting position of the mounting cut surface 21 relative to the shift hub 1 directly affects the position accuracy of the sensor detecting the shift hub 1. In other words, before the rotating shaft 2 is pressed, it is necessary not only to perform circumferential positioning on the shift hub 1, but also to perform circumferential positioning on the rotating shaft 2, and finally press the rotating shaft 2 into the center hole of the shift hub 1. Therefore, it is urgent to develop a rotating shaft press-fitting structure that can accurately perform circumferential positioning on the rotating shaft and ensure that the rotating shaft is pressed to the set depth of the center hole.

[0005] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present utility model is to provide a rotating shaft press-fitting structure which can not only accurately position the rotating shaft circumferentially, but also ensure that the rotating shaft is press-fitted to a set depth of a center hole.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The cam assembly of the present invention is a kind of rotating shaft pressing structure, comprising a top plate, a column for supporting the top plate, a linear drive arranged downward on the top plate, a lifting seat arranged below the linear drive, a pressure sensor arranged on the lifting seat, and a pressure head assembly arranged at the bottom of the lifting seat; the linear drive is connected to the lifting seat driving and the downward pressure of the linear drive acts on the pressure sensor, and the pressure head assembly comprises a pressing shaft plug post extending vertically and arranged at the bottom of the lifting seat, a support arm arranged on the pressing shaft plug post, and a finger cylinder arranged on the support arm, the bottom surface of the pressing shaft plug post is provided with an axially extending plug hole, the plug hole comprises a circular hole section and a fan-shaped hole section connected in sequence from bottom to top, two side clamping holes connected to the fan-shaped hole sections are provided on the peripheral wall of the pressing shaft plug post, and the clamping fingers of the finger cylinder are provided with a clamping block for extending into the side clamping hole to clamp the rotating shaft in the plug hole, and the clamping plane of one of the clamping fingers is in contact with the installation section of the rotating shaft.

[0009] As a further improvement of the above technical solution, the bottom surface of the pressure-axis plug is provided with a plurality of magnet mounting holes arranged around the insertion hole, and the side wall of the pressure-axis plug is provided with magnet fixing holes which are the same in number and correspond one to one with the magnet mounting holes, and each magnet mounting hole is installed with a shaft-attracting magnet and is fixed by a screw cooperating with the magnet fixing hole.

[0010] As a further improvement of the above technical solution, the lifting seat includes a seat plate, a plurality of screws vertically arranged on the seat plate, and a transmission plate horizontally arranged above the seat plate, the output end of the linear drive is transmission-connected to the transmission plate, and an interval for installing the pressure sensor is formed between the transmission plate and the seat plate, the screw passes through the seat plate from bottom to top, the head of the screw presses against the bottom surface of the seat plate, the end of the screw away from the head passes through the transmission plate and is matched with a nut for limiting the transmission plate from detaching from the screw.

[0011] As a further improvement of the above technical solution, the pressure pin includes a round head, a circular plate and a plug arranged at the bottom of the circular plate connected in sequence from top to bottom, the diameter of the circular plate is larger than the plug, and the pressure head assembly also includes a horizontal adjustment plate arranged on the bottom surface of the seat plate, the horizontal adjustment plate is provided with waist-shaped holes extending forward and backward, the bottom surface of the seat plate is provided with first threaded holes that are the same in number and correspond to the waist-shaped holes, the top of the horizontal adjustment plate is provided with a circular hole that docks with the round head, the circular plate is fixedly connected to the support arm, the circular plate and the support arm are jointly provided with a plurality of arc holes arranged in a circumferential array, and the horizontal adjustment plate is provided with second threaded holes that are the same in number and correspond to the arc holes.

[0012] As a further improvement of the above technical solution, a guide groove is provided on the bottom surface of the seat plate for embedding the horizontal adjustment plate and guiding the horizontal adjustment plate to move forward and backward.

[0013] As a further improvement of the above technical solution, the base plate is provided with at least two vertically extending guide rods, the top plate is provided with linear bearings with the same number as the guide rods, and the guide rods pass through the top plate and cooperate with the corresponding linear bearings one by one.

[0014] As a further improvement of the above technical solution, an anti-drop limit plate is provided on the back of the seat plate, a cantilever is provided under the top plate, and a limit driving cylinder is provided on the cantilever. The limit driving cylinder is used to drive the limit tongue to insert into the anti-drop hole on the anti-drop limit plate.

[0015] As a further improvement of the above technical solution, the linear drive is a cylinder.

[0016] The rotating shaft press-fitting structure also includes an infrared detection mechanism for detecting whether the rotating shaft is inserted into the insertion hole.

[0017] The rotating shaft pressing structure also includes a visual camera for taking photos and detecting the rotating shaft installed on the pressing shaft pin.

[0018] Beneficial effects of the utility model: The pressure head assembly in the rotary shaft press-fitting structure provided by the utility model is fully improved according to the installation section structure of the rotary shaft, and the circumferential pre-positioning is achieved by the cooperation between the fan-shaped hole and the top of the rotary shaft, and then the clamping block is controlled by the finger cylinder to adjust the circumferential position accuracy of the rotary shaft and clamp the rotary shaft, thereby ensuring the accuracy of the rotary shaft insertion. The design of the pressure head assembly and the monitoring of the pressure sensor ensure that the rotary shaft can be accurately press-fitted into the center hole of the shift hub, and the downward pressure is sensed in real time to ensure that the set press-fitting depth is reached. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional view of the shift hub after the shaft is pressed into place.

[0020] Figure 2 A three-dimensional diagram of a shaft being inserted into a shaft press-fit structure.

[0021] Figure 3 A three-dimensional view of the pressure head assembly installed on the base plate.

[0022] Figure 4 This is a three-dimensional image of the finale column.

[0023] Figure 5 It is the front view of the shaft press-fit structure.

[0024] Figure 6 It is a schematic diagram of the limit tongue limiting the lifting and lowering of the lifting seat.

[0025] Figure 7 It is a schematic diagram of the structure of the clamping block clamping the rotating shaft.

[0026] Main component symbol description: 1-shift hub, 2-rotating shaft, 21-installation section, 22-upper shaft section, 23-lower shaft section, 61-infrared detection mechanism, 62-visual camera, 71-top plate, 72-column, 73-linear drive, 74-pressure sensor, 75-cantilever, 76-transmission head, 8-lifting seat, 81-seat plate, 82-screw, 83-transmission plate, 84-nut, 85-guide rod, 86-linear bearing, 87-anti-drop limit plate, 88-limit drive air Cylinder, 89-limiting tongue, 9-pressure head assembly, 91-pressure shaft plug column, 911-jack, 9111-circular hole section, 9112-fan-shaped hole section, 912-side clamp hole, 913-magnet mounting hole, 914-magnet fixing hole, 915-round head, 916-circular middle plate, 917-insertion tube, 92-support arm, 93-finger cylinder, 94-clamp block, 95-horizontal adjustment plate, 96-waist-shaped hole, 97-arc hole, 98-guide groove, 991-cross block, 992-adjustment screw. DETAILED DESCRIPTION

[0027] The utility model provides a rotating shaft press-fit structure. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the protection scope of the utility model.

[0028] The rotating shaft 2 includes an upper shaft section 22 and a lower shaft section 23. The diameter of the lower shaft section 23 is larger than that of the upper shaft section 22. A mounting cut surface 21 is provided at the top of the upper shaft section 22, so that the cross section of the top of the upper shaft section 22 is fan-shaped.

[0029] See also Figure 2-Figure 7The utility model provides a rotating shaft pressing structure, including a top plate 71, a column 72 for supporting the top plate 71, a linear driver 73 arranged downward on the top plate 71, a lifting seat 8 arranged below the linear driver 73, a pressure sensor 74 arranged on the lifting seat 8, and a pressure head assembly 9 arranged at the bottom of the lifting seat 8; the linear driver 73 is drivingly connected to the lifting seat 8 and the downward pressure of the linear driver 73 acts on the pressure sensor 74, the pressure head assembly 9 includes a pressing shaft plug column 91 extending vertically and arranged at the bottom of the lifting seat 8, and a pressure head assembly 9 arranged on the pressing shaft plug column 91. The support arm 92 and the finger cylinder 93 arranged on the support arm 92, the bottom surface of the pressing shaft plug 91 is provided with an axially extending socket 911, the socket 911 includes a circular hole section 9111 and a fan-shaped hole section 9112 connected in sequence from bottom to top, and the peripheral wall of the pressing shaft plug 91 is provided with two side clamping holes 912 connected to the fan-shaped hole section 9112, and the clamping fingers of the finger cylinder 93 are provided with a clamping block 94 for extending into the side clamping hole 912 to clamp the rotating shaft 2 in the socket 911, and the clamping plane of one of the clamping fingers is in contact with the mounting section 21 of the rotating shaft 2.

[0030] Before the shaft 2 is pressed, the staff inserts the shaft 2 into the socket 911 of the press-fitting column 91, that is, the upper shaft section 22 of the shaft 2 first enters the circular hole section 9111 of the socket 911, and the fan-shaped hole section 9112 limits the circumferential positioning of the shaft 2. The staff needs to rotate the shaft 2 so that the top of the upper shaft section 22 of the shaft 2 is aligned with the fan-shaped hole section 9112, and the top of the upper shaft section 22 can extend into the fan-shaped hole section 9112, thereby pre-positioning the shaft 2 in the circumferential direction, and ensuring that the installation section 21 on the shaft 2 is basically facing the set clamping block 94, and then the two clamping fingers of the finger cylinder 93 are closed, so that the two clamping blocks 94 are close to each other and clamp the shaft 2. It can be understood that in order to facilitate the smooth insertion of the shaft 2, there is an appropriate matching gap between the shaft 2 and the socket 911, so that micro-movement can still occur after the shaft 2 is inserted into the socket 911. When the clamping block 94 clamps the shaft 2, the clamping plane of the clamping block 94 fits with the installation cut surface 21 of the shaft 2, and the shaft 2 is accurately positioned circumferentially again to ensure the circumferential position accuracy of the shaft 2 during press-fitting, and to prevent the shaft 2 from loosening during press-fitting. Finally, the linear actuator 73 drives the lifting seat 8, the pressure head assembly 9 and the shaft 2 to be pressed down as a whole, and the lower shaft section 23 of the shaft 2 can be inserted into the center hole of the shift hub 1. During the press-fitting process, the pressure sensor 74 senses the downward pressure of the shaft 2 in real time. When the shaft 2 is pressed into place, the shaft 2 is restricted from moving downward so that the downward pressure will increase to reach the set value. The pressure sensor 74 will feedback the signal to the control system, and the control system controls the linear actuator 73 to stop pressing down and drive the lifting seat 8 and the pressure head assembly 9 to reset upward.

[0031] The press head assembly 9 in the press-fitting structure of the rotating shaft 2 provided by the utility model is fully improved according to the structure of the installation section 21 of the rotating shaft 2, and the circumferential pre-positioning is realized by the cooperation between the fan-shaped hole and the top of the rotating shaft 2, and then the clamping block 94 is controlled by the finger cylinder 93 to adjust the circumferential position accuracy of the rotating shaft 2 and clamp the rotating shaft 2, thereby ensuring the accuracy of the insertion of the rotating shaft 2. The design of the press head assembly 9 and the monitoring of the pressure sensor 74 ensure that the rotating shaft 2 can be accurately press-fitted into the center hole of the shift hub 1, and the downward pressure is sensed in real time to ensure that the set press-fitting depth is reached.

[0032] In fact, if the staff inserts the rotating shaft 2 into the pressing shaft plug 91, it is necessary to continuously provide an upward insertion force for the rotating shaft until the clamping fingers of the finger cylinder 93 are closed and the clamping block 94 can release the rotating shaft 2. The insertion efficiency is low and the labor intensity of the staff is high.

[0033] Therefore, the bottom surface of the pressure-axis plug 91 is provided with a plurality of magnet mounting holes 913 arranged around the insertion hole 911, and the side wall of the pressure-axis plug 91 is provided with magnet fixing holes 914 which are the same in number and correspond one to one with the magnet mounting holes 913. Each magnet mounting hole 913 is installed with an axle-attracting magnet (not shown in the figure) and is fixed by a screw (not shown in the figure) cooperating with the magnet fixing hole 914. The shaft magnet can provide additional magnetic guidance and provide an upward magnetic insertion force for the shaft 2, so that the shaft 2 can be more easily adsorbed to the correct position during the insertion process, reducing the need for manual adjustment, improving the efficiency and accuracy of the insertion, and reducing the deviation and shaking of the shaft 2 during the insertion process, thereby reducing the error caused by inaccurate position and improving the accuracy and efficiency of the insertion. On the other hand, the shaft magnet can absorb the lower shaft section 23 of the inserted shaft 2. Before the clamp 94 clamps the shaft 2, even if the staff releases the shaft 2, the shaft 2 will not fall. The shaft magnet enhances the positioning effect of the shaft 2, ensuring that the shaft 2 is more firmly adsorbed in the correct position during the insertion process, thereby improving the accuracy and stability of the insertion.

[0034] In order to ensure that the downward force of the rotating shaft 2 is sufficient and stable, the linear drive 73 is an oil cylinder, and a transmission head 76 is fixedly connected to the end of the piston rod of the oil cylinder, and the transmission head 76 is fixedly connected to the transmission plate 83.

[0035] Specifically, the lifting seat 8 includes a seat plate 81, a plurality of screws 82 vertically arranged on the seat plate 81, and a transmission plate 83 horizontally arranged above the seat plate 81. The output end of the linear drive 73 is in transmission connection with the transmission plate 83. A zone for installing the pressure sensor 74 is formed between the transmission plate 83 and the seat plate 81. The screw 82 penetrates the seat plate 81 from bottom to top. The head of the screw 82 presses against the bottom surface of the seat plate 81. The end of the screw 82 away from the head penetrates the transmission plate 83 and is matched with a nut 84 for limiting the transmission plate 83 from being separated from the screw 82. In this embodiment, the screw rod is provided with four corners that penetrate the transmission plate 83 respectively. Under the guidance of the screw 82, the transmission plate 83 remains horizontal during lifting, thereby avoiding the piston rod of the driving oil cylinder from being subjected to shear force and preventing the piston rod from being deformed due to shear force.

[0036] During press-fitting, when the downward pressure of the linear actuator 73 acts on the pressure sensor 74, the downward pressure is transmitted to the seat plate 81 and the pressure head assembly 9 through the pressure sensor 74, thereby driving the seat plate 81, the pressure head assembly 9 and the rotating shaft 2 to descend as a whole, and the pressure sensor 74 can accurately and in real time detect the press-fitting force of the rotating shaft 2. When the lifting seat 8 and the pressure head assembly 9 are to rise and reset, the upward pulling force of the linear actuator 73 first drives the transmission plate 83 and the screw 82 to rise, and the seat plate 81 moves upward under the traction of the pressure head assembly 9 and the head of the screw 82.

[0037] Since the position accuracy of the final shaft plug 91 directly affects the final press-fitting accuracy of the shaft 2, it is necessary to adjust in advance and ensure that the position of the final shaft plug 91 is accurate. The final shaft plug 91 includes a round head 915, a circular plate 916 and a plug 917 arranged at the bottom of the circular plate 916, which are connected in sequence from top to bottom. The diameter of the circular plate 916 is larger than the plug 917. The pressure head assembly 9 also includes a horizontal adjustment plate 95 arranged on the bottom surface of the seat plate 81. The horizontal adjustment plate 95 is provided with a front The bottom surface of the seat plate 81 is provided with the same number of first threaded holes as the waist-shaped holes 96 and corresponding to each other, the top of the horizontal adjustment plate 95 is provided with a round hole that docks with the round head 915, the circular plate 916 is fixedly connected to the support arm 92, the circular plate 916 and the support arm 92 are jointly provided with a plurality of arc holes 97 arranged in a circumferential array, and the horizontal adjustment plate 95 is provided with the same number of second threaded holes as the arc holes 97 and corresponding to each other. The first locking screw passes through the waist-shaped hole 96 and is connected to the first threaded hole, and the second locking screw passes through the arc hole 97 and is connected to the second threaded hole.

[0038] It can be understood that the horizontal adjustment plate 95, the pressure shaft plug 91, and the support arm 92 form an integral body. By adjusting the horizontal adjustment plate 95, the front and rear positions of the pressure shaft plug 91 can be adjusted to ensure that the pressure shaft plug 91 is coaxially aligned with the central axis of the shift hub 1. Preferably, since the circumferential position of the pressure shaft plug 91 directly affects the circumferential position of the rotating shaft 2 after insertion, after loosening the fixing screws 82 of the circular center plate 916 of the pressure shaft plug 91 and the horizontal adjustment plate 95, the round head 915 of the pressure shaft plug 91 and the horizontal adjustment plate 95 can be rotatably connected, and the arc hole 97 on the circular center plate 916 of the pressure shaft plug 91 can be rotated relative to the horizontal adjustment plate 95 to fine-tune the circumferential position. Through such a setting, it is very convenient to adjust the position of the pressure shaft plug 91 according to the press-fitting effect of the rotating shaft 2, so as to further improve the press-fitting effect of the rotating shaft 2, reduce the production error caused by position deviation, and help improve the assembly accuracy and consistency of the rotating shaft and the shift hub.

[0039] Preferably, the bottom surface of the seat plate 81 is provided with a guide groove 98 for embedding the horizontal adjustment plate 95 and guiding the horizontal adjustment plate 95 to move forward and backward, and the front and rear sides of the horizontal adjustment plate 95 are respectively provided with adjustment structures, which include a horizontal block 991 fixed on the seat plate 81, and an adjustment screw 992 threadedly connected to the horizontal block 991 and facing the horizontal adjustment plate 95. By rotating the adjustment screws 992 on the front and rear sides, the horizontal adjustment plate 95 is pushed to move forward and backward, thereby accurately adjusting the position of the horizontal adjustment plate 95.

[0040] Preferably, at least two vertically extending guide rods 85 are provided on the seat plate 81, and the top plate 71 is provided with the same number of linear bearings 86 as the guide rods 85, and the guide rods 85 penetrate the top plate 71 and cooperate with the corresponding linear bearings 86 one by one. Through the guiding effect of the guide rods 85 and the linear bearings 86, not only can the correct movement direction of the seat plate 81 and the pressure head assembly 9 be ensured, but the seat plate 81 always remains in a horizontal state, and will not tilt to affect the insertion of the rotating shaft 2.

[0041] When the lifting seat 8 and the pressure head assembly 9 are to be inspected, the lifting seat 8 and the pressure head assembly 9 should be at the highest point. If the linear drive 73 is suddenly triggered to drive the lifting seat 8 and the pressure head assembly 9 to descend, it will cause injuries to the staff. Therefore, it is necessary to effectively prevent the lifting seat 8 and the pressure head assembly 9 from descending during the inspection. To this end, in this embodiment, an anti-drop limit plate 87 is provided on the back of the seat plate 81, and a cantilever 75 is provided below the top plate 71. A limit driving cylinder 88 is provided on the cantilever 75. When the limit driving cylinder 88 drives the limit tongue 89 to insert into the anti-drop socket 911 on the anti-drop limit plate 87, the limit tongue 89 supports and intercepts the lifting seat 8. Even if there is an external force factor driving the lifting seat 8 to form a downward trend, it cannot drive the lifting seat 8 to descend.

[0042] In order to prevent the device from triggering the press-fitting action when the shaft 2 is not placed, the shaft 2 press-fitting structure also includes an infrared detection mechanism 61 for detecting whether the shaft 2 is inserted into the insertion hole 911. The infrared detection mechanism 61 includes a stand and a diffuse reflection photoelectric switch or infrared sensor arranged on the stand.

[0043] Since the rotating shaft 2 may not be properly installed after the staff inserts it into the final shaft plug 91, and it is difficult to find the problem with the naked eye, the pressing structure of the rotating shaft 2 also includes a visual camera 62 for taking photos and detecting the rotating shaft 2 installed on the final shaft plug 91. The visual camera 62 can be a 2D industrial camera or a 3D industrial camera. The 3D industrial camera has higher accuracy and image processing capabilities. The visual camera 62 takes photos of the rotating shaft 2 and the final shaft plug 91, and compares the photos with standard qualified photos, so as to electronically determine whether the rotating shaft 2 is properly installed, and solve the problem of subsequent press-fitting failure caused by human operation errors.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "press-fit", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A rotating shaft press-fit structure, characterized in that: The invention comprises a top plate, a column for supporting the top plate, a linear drive arranged downward on the top plate, a lifting seat arranged below the linear drive, a pressure sensor arranged on the lifting seat, and a pressure head assembly arranged at the bottom of the lifting seat; the linear drive is connected to the lifting seat driving and the downward pressure of the linear drive acts on the pressure sensor, the pressure head assembly comprises a pressing shaft plug post extending vertically at the bottom of the lifting seat, a support arm arranged on the pressing shaft plug post, and a finger cylinder arranged on the support arm, the bottom surface of the pressing shaft plug post is provided with an axially extending socket, the socket comprises a circular hole section and a fan-shaped hole section connected in sequence from bottom to top, two side clamping holes connected to the fan-shaped hole sections are provided on the peripheral wall of the pressing shaft plug post, and a clamping block for extending into the side clamping hole to clamp the rotating shaft in the socket is provided on the clamping finger of the finger cylinder, and a clamping plane of one of the clamping fingers is in contact with the mounting section of the rotating shaft.

2. The rotating shaft press-fitting structure according to claim 1, characterized in that: The bottom surface of the axle-holding plug is provided with a plurality of magnet mounting holes arranged around the insertion hole, and the side wall of the axle-holding plug is provided with magnet fixing holes, the same number as the magnet mounting holes and corresponding to each other. Each magnet mounting hole is installed with an axle-attracting magnet and is fixed by a screw cooperating with the magnet fixing hole.

3. The rotating shaft press-fitting structure according to claim 1, characterized in that: The lifting seat includes a seat plate, a plurality of screws vertically arranged on the seat plate, and a transmission plate horizontally arranged above the seat plate. The output end of the linear drive is connected to the transmission plate in transmission connection. An interval for installing the pressure sensor is formed between the transmission plate and the seat plate. The screw passes through the seat plate from bottom to top, and the head of the screw presses against the bottom surface of the seat plate. The end of the screw away from the head passes through the transmission plate and is equipped with a nut for limiting the transmission plate from detaching from the screw.

4. The rotating shaft press-fitting structure according to claim 3, characterized in that: The pressure pin includes a round head, a circular plate and a plug arranged at the bottom of the circular plate connected in sequence from top to bottom, the diameter of the circular plate is larger than the plug, the pressure head assembly also includes a horizontal adjustment plate arranged on the bottom surface of the seat plate, the horizontal adjustment plate is provided with waist-shaped holes extending forward and backward, the bottom surface of the seat plate is provided with first threaded holes that are the same in number and correspond to the waist-shaped holes, the top of the horizontal adjustment plate is provided with a circular hole that docks with the round head, the circular plate is fixedly connected to the support arm, the circular plate and the support arm are jointly provided with a plurality of arc holes arranged in a circumferential array, and the horizontal adjustment plate is provided with second threaded holes that are the same in number and correspond to the arc holes.

5. The rotating shaft press-fitting structure according to claim 4, characterized in that: The bottom surface of the seat plate is provided with a guide groove for embedding the horizontal adjustment plate and guiding the horizontal adjustment plate to move forward and backward.

6. The rotating shaft press-fitting structure according to claim 3, characterized in that: The seat plate is provided with at least two vertically extending guide rods, the top plate is provided with linear bearings having the same number as the guide rods, and the guide rods penetrate the top plate and cooperate with the corresponding linear bearings one by one.

7. The rotating shaft press-fitting structure according to claim 3, characterized in that: An anti-drop limit plate is provided on the back of the seat plate, a cantilever is provided below the top plate, a limit driving cylinder is provided on the cantilever, and the limit driving cylinder is used to drive the limit tongue to insert into the anti-drop socket on the anti-drop limit plate.

8. The rotating shaft press-fitting structure according to claim 1, characterized in that: The linear drive is a cylinder.

9. The rotating shaft press-fitting structure according to claim 1, characterized in that: It also includes an infrared detection mechanism for detecting whether a rotating shaft is inserted into the socket.

10. The rotating shaft press-fitting structure according to claim 1, characterized in that: It also includes a visual camera for taking photos and inspecting the rotating shaft installed on the pressing shaft pin.

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