CN217167324U

CN217167324U - Pressure feedback type suction device

Info

Publication number: CN217167324U
Application number: CN202221555028.8U
Authority: CN
Inventors: 王峰; 侯亚松; 李霖泰; 冯凯; 张瑞涛; 张志军
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-08-12
Anticipated expiration: 2032-06-21

Abstract

The utility model belongs to the technical field of automated production equipment, especially, relate to a pressure feedback formula suction means, including bearing structure, rotate pivot structure and the drive pivot structure pivoted of installing on bearing structure and rotate actuating mechanism, still including fixing the pressure measurement part of tip department under the pivot structure, along the axis direction slidable mounting of pivot structure at the lower tip department of pivot structure and with pressure measurement part just right suction nozzle structure and set up the elastic expansion piece between suction nozzle structure and pressure measurement part, be equipped with circumference limit structure between suction nozzle structure and pivot structure. The action of sucking the battery and assembling the battery can be automatically completed, the pressure acting on the battery is detected in real time when the suction nozzle structure sucks the battery and assembles the battery, the damage of the battery caused by overlarge pressure is avoided, the direction of the battery can be adjusted when the battery is assembled, the assembly precision is improved, the problems of low precision and low efficiency of manual assembly of the battery are solved, and the damage of the battery can be avoided.

Description

Pressure feedback type suction device

Technical Field

The utility model belongs to the technical field of automated production equipment, especially, relate to a pressure feedback formula suction means.

Background

At present, electronic products, such as smart phones, smart watches, etc., have become an indispensable part of people's lives. The battery is a main part of an electronic product, the battery is easily damaged during assembly due to the structure of the battery, the battery is manually assembled in order to reduce the risk of damage of the battery, and the main problem is that the assembly efficiency is very low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure feedback formula suction means aims at solving the problem that artifical equipment battery precision is low and inefficiency, can avoid causing the battery damaged.

The utility model discloses a pressure feedback formula suction means, pressure feedback formula suction means includes bearing structure, rotates and installs bearing structure is last pivot structure and be used for the drive pivot structure pivoted rotation actuating mechanism still including fixing the pressure detection part of pivot structure's lower tip department, edge pivot structure's axis direction slidable mounting be in pivot structure's lower tip department and with the pressure detection part is just being in the suction nozzle structure and the setting that set up the suction nozzle structure with elastic expansion piece between the pressure detection part the suction nozzle structure with be equipped with circumference limit structure between the pivot structure.

As an improvement, the rotating shaft structure comprises a shaft body and a mounting seat fixed at the lower end part of the shaft body, the pressure detection component is fixed on the mounting seat, and the suction nozzle structure is slidably mounted on the mounting seat.

As an improvement, the mounting seat is a frame body, the lower end part of the shaft body is fixedly connected with the upper side wall of the frame body, and a mounting hole which is coaxial with the shaft body is arranged on the lower side wall of the frame body; the pressure detection component is fixed in the frame body and arranged between the upper side wall and the lower side wall of the frame body, and the suction nozzle structure is installed at the installation hole in a sliding mode.

As an improvement, an installation plate is arranged in the frame body, fasteners are respectively arranged between the left side wall and the right side wall of the frame body and the corresponding side edges of the installation plate, and the pressure detection component is fixed on the installation plate.

As an improvement, the suction nozzle structure includes a suction nozzle base, the suction nozzle base includes a sliding part which is slidably mounted at the mounting hole, a blocking ring part which is arranged inside the frame body and fixedly connected with the upper end part of the sliding part, the suction nozzle structure further includes a suction nozzle which is arranged outside the frame body and fixedly connected with the lower end part of the sliding part, and an air passage which is communicated with the suction nozzle is arranged on the suction nozzle base.

As an improvement, a T-shaped pressure head is arranged between the suction nozzle seat and the pressure detection component, a containing hole coaxial with the shaft body is arranged on the T-shaped pressure head, an insertion rod part inserted into the containing hole is arranged on the suction nozzle seat, and the large-diameter end of the T-shaped pressure head abuts against the pressure detection component; one end of the elastic telescopic piece is sleeved on the small-diameter end of the T-shaped pressure head, and the other end of the elastic telescopic piece is abutted against the suction nozzle seat.

As an improvement, the circumferential limiting structure is arranged between the lower side wall of the frame body and the retaining ring portion, the circumferential limiting structure comprises an anti-rotation pin which is fixed at the inner side of the lower side wall of the frame body and arranged along the axial direction of the shaft body, and a through hole which is correspondingly arranged on the retaining ring portion, and the anti-rotation pin penetrates through the through hole.

As an improvement, a reset detection mechanism is arranged between the shaft body and the supporting structure, and the reset detection mechanism comprises a detection switch fixed on the supporting structure and a corresponding detection sheet fixed on the shaft body.

As an improvement, the bearing structure includes along vertical fixing base, bearing frame and the lid that sets gradually establish the bearing frame is kept away from bearing end cover on one side of fixing base, the axis body passes bearing end cover reaches the bearing frame the axis body with be equipped with the bearing between the bearing frame, rotate actuating mechanism and fix on the fixing base and with the upper end transmission of axis body is connected.

As an improvement, a clearance adjusting structure is arranged between the shaft body and the supporting structure.

As an improvement, the clearance adjustment structure sets up the axis body with be close to one of fixing base between the bearing, establish including the cover establish on the axis body and set up being close to one of fixing base the backing ring of upside department of bearing, cover establish on the axis body and set up the tight ring in top of upside department of backing ring top tight ring with be equipped with the locking piece between the axis body, still include along the circumference interval of axis body set up two at least screw holes on the tight ring in top, set up in threaded rod in the threaded hole and set up lock nut on the threaded rod, the threaded hole sets up along the axis direction of axis body, the threaded rod passes the tight ring top of top leans on the side of backing ring.

As an improvement, a visual background plate is fixed at the lower end of the rotating shaft structure.

Since the technical scheme is used, the utility model discloses a pressure feedback formula suction means includes bearing structure, rotate and install the pivot structure on bearing structure and be used for driving pivot structure pivoted rotation actuating mechanism, still including fixing the pressure measurement part in pivot structure's lower tip department, along pivot structure's axis direction slidable mounting under pivot structure department and with the pressure measurement part just to the suction nozzle structure that sets up and the elastic expansion piece of setting between suction nozzle structure and pressure measurement part, be equipped with circumference limit structure between suction nozzle structure and pivot structure. When the device is used, the pressure feedback type suction device is fixed on the output part of the three-axis movement driving mechanism or the mechanical arm, when a battery is sucked, the three-axis movement driving mechanism or the mechanical arm drives the pressure feedback type suction device to move to a material tray, then the three-axis movement driving mechanism or the mechanical arm drives the pressure feedback type suction device to fall to press the suction nozzle structure on the battery, a certain pressure is generated between the suction nozzle structure and the battery, the battery is sucked through the suction nozzle structure, the sucked battery is transferred to the assembly position of an electronic product through the three-axis movement driving mechanism or the mechanical arm driving pressure feedback type suction device, the rotation driving mechanism drives the rotation shaft structure to rotate, the suction nozzle structure and the battery are driven to rotate through the rotation shaft structure to adjust the direction of the battery to be aligned with the assembly position, and then the three-axis movement driving mechanism or the mechanical arm driving pressure feedback type suction device falls to assemble the sucked battery to the assembly position, the action of sucking the battery and assembling the battery can be automatically completed, because the pressure detection part is fixed at the lower end part of the rotating shaft structure, the suction nozzle structure can slide along the axis direction of the rotating shaft structure and is just opposite to the pressure detection part, the pressure acting on the battery can be detected in real time when the suction nozzle structure sucks the battery and assembles the battery, the battery damage caused by overlarge pressure is avoided, in addition, the direction of the sucked battery can be adjusted during the assembly, the assembly precision can be improved, the problems of low precision and low efficiency of the manually assembled battery are solved, and the battery damage can be avoided.

Drawings

Fig. 1 is a schematic perspective view of a pressure feedback type suction device according to the present invention;

FIG. 2 is a schematic cross-sectional view of the pressure feedback type suction device of the present invention;

fig. 3 is a schematic perspective view of a rotating shaft structure of the pressure feedback type suction device of the present invention;

wherein, 11, the fixing seat; 111. a vertical plate; 112. an upper connecting plate; 113. a lower connecting plate; 12. a bearing seat; 13. a bearing end cap; 20. a rotating shaft structure; 21. a shaft body; 22. a frame body; 23. mounting holes; 24. inserting holes; 30. a rotation driving mechanism; 40. a pressure detecting member; 41. mounting a plate; 42. a fastener; 50. a suction nozzle structure; 51. a nozzle base; 511. a sliding part; 512. a retaining ring part; 513. a plug-in rod part; 52. a suction nozzle; 53. an anti-rotation pin; 54. a T-shaped pressure head; 55. a housing hole; 60. an elastic extensible member; 71. a detection switch; 72. detecting a sheet; 81. a backing ring; 82. a jacking ring; 83. a threaded rod; 84. locking the nut; 90. visual background board.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 1 to fig. 3 are the structural schematic diagram of the pressure feedback type suction device of the present invention, wherein, fig. 1 shows the utility model discloses a pressure feedback type suction device's spatial structure schematic diagram, fig. 2 shows the utility model discloses a pressure feedback type suction device's sectional structure schematic diagram, fig. 3 shows the utility model discloses a pressure feedback type suction device's pivot structure's spatial structure schematic diagram. For the sake of convenience, only the parts relevant to the present invention are shown in the drawings.

It should be noted that if the present invention relates to a directional indication (for example, up, down, front, back, etc.), the directional indication is only used to explain the relative position relationship between the components in a specific posture, and if the specific posture changes, the directional indication changes accordingly; if reference is made in the present application to the description of "first", "second", etc., then the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated.

As can be seen from fig. 1, 2 and 3, the pressure feedback type suction device includes a supporting structure, a rotating shaft structure 20 rotatably mounted on the supporting structure, and a rotation driving mechanism 30 for driving the rotating shaft structure 20 to rotate along the axis direction thereof, wherein, in use, the rotating shaft structure 20 is vertically disposed, and further includes a pressure detecting component 40 fixed at the lower end portion of the rotating shaft structure 20, a suction nozzle structure 50 slidably mounted at the lower end portion of the rotating shaft structure 20 along the axis direction of the rotating shaft structure 20 and facing the pressure detecting component 40, and an elastic extensible member 60 disposed between the suction nozzle structure 50 and the pressure detecting component 40, and a circumferential limiting structure is disposed between the suction nozzle structure 50 and the rotating shaft structure 20.

When the pressure feedback type suction device is used, the pressure feedback type suction device is fixed on an output part of a three-axis movement driving mechanism or a mechanical arm, when a battery is sucked, the three-axis movement driving mechanism or the mechanical arm drives the pressure feedback type suction device to move to a material tray, then the three-axis movement driving mechanism or the mechanical arm drives the pressure feedback type suction device to fall to enable the suction nozzle structure 50 to be pressed on the battery, a certain pressure is generated between the suction nozzle structure 50 and the battery, the battery is sucked through the suction nozzle structure 50, the sucked battery is transferred to an assembly position of an electronic product through the three-axis movement driving mechanism or the mechanical arm driving pressure feedback type suction device, the rotation driving mechanism 30 drives the rotation shaft structure 20 to rotate, the suction nozzle structure 50 and the battery are driven to rotate through the rotation shaft structure 20, the direction of the battery is adjusted to be aligned with the assembly position, and the sucked battery is assembled to a group through the falling of the three-axis movement driving mechanism or the mechanical arm driving pressure feedback type suction device The position of the battery assembling machine can automatically complete the actions of battery sucking and battery assembling, because the pressure detection part 40 is fixed at the lower end part of the rotating shaft structure 20, the suction nozzle structure 50 can slide along the axis direction of the rotating shaft structure 20 and is just opposite to the pressure detection part 40, the pressure acting on the battery can be detected in real time when the suction nozzle structure 50 sucks the battery and assembles the battery, the damage of the battery caused by overlarge pressure is avoided, in addition, the rotating shaft structure 20 can be driven to rotate by rotating the driving mechanism 30 during assembling, the assembling precision can be improved, the problems of low precision and low efficiency of manually assembled batteries are solved, and the damage of the battery can be avoided.

The utility model discloses a pressure feedback formula suction means not only can be used for the absorption and the equipment of battery, can also be used for the absorption and the equipment of other plane class products, the utility model discloses in only use the battery to explain as the example, can not understand the utility model discloses a pressure feedback formula suction means only is applicable to the absorption and the equipment of battery.

The utility model discloses in, pivot structure 20 includes the axis body 21, fixes the mount pad in the lower tip department of axis body 21, and this pressure measurement part 40 is fixed on the mount pad, and this suction nozzle structure 50 slidable mounting is on the mount pad.

Specifically, the mounting seat is a frame 22, the lower end of the shaft body 21 is fixedly connected with the upper side wall of the frame 22, and the lower side wall of the frame 22 is provided with a mounting hole 23 which is coaxial with the shaft body 21; the pressure detection unit 40 is fixed inside the frame 22 and disposed between the upper and lower walls of the frame 22, and the suction nozzle structure 50 is slidably mounted in the mounting hole 23.

In order to facilitate the installation of the pressure detection member 40, an installation plate 41 is provided inside the housing 22, fasteners 42 are provided between the left and right side walls of the housing 22 and the corresponding sides of the installation plate 41, respectively, and the pressure detection member 40 is fixed to the installation plate 41, and the fasteners 42 are typically bolts.

Generally, the shaft body 21 and the frame body 22 are formed integrally, and the coaxiality between the shaft body 21 and the mounting hole 23 can be improved by one-step molding by machining, thereby improving the accuracy of the entire pressure feedback type suction device.

In other embodiments, the mounting seat may also be provided in the form of a cylinder, including a cylinder with one closed end and one open end, and a limiting ring for covering the open end of the cylinder, the closed end of the cylinder is fixedly connected to the lower end of the shaft 21, the pressure detecting component 40 is disposed in the cylinder and fixedly mounted on the closed end of the cylinder, and the suction nozzle structure 50 is slidably mounted at the ring hole of the limiting ring.

The utility model discloses in, suction nozzle structure 50 includes suction nozzle base 51, this suction nozzle base 51 includes sliding part 511 of slidable mounting in mounting hole 23 department, set up in the inside of framework 22 and with sliding part 511's upper end fixed connection's fender ring portion 512, this suction nozzle structure 50 still includes the suction nozzle 52 that sets up in the outside of framework 22 and sliding part 511's lower tip fixed connection, be equipped with the air flue that communicates with suction nozzle 52 on suction nozzle base 51, the port department at the air flue is connected to the breathing pipe, make suction nozzle 52 department produce suction through the air flue.

Specifically, a T-shaped pressure head 54 is provided between the nozzle holder 51 and the pressure detection member 40, a housing hole 55 provided coaxially with the shaft body 21 is provided in the T-shaped pressure head 54, a stem portion 513 inserted into the housing hole 55 is provided in the nozzle holder 51, a large-diameter end of the T-shaped pressure head 54 abuts against the pressure detection member 40, one end of the elastic extensible member 60 is fitted over a small-diameter end of the T-shaped pressure head 54, and the other end abuts against the nozzle holder 51, so that the elastic extensible member 60 can be confined between the T-shaped pressure head 54 and the nozzle holder 51, and the elastic extensible member 60 can be easily mounted, and the large-diameter end of the T-shaped pressure head 54 abuts against the pressure detection member 40, so that the contact area with the pressure detection member 40 can be increased, and the pressure detection accuracy can be improved.

The elastic expansion element 60 is typically a spring, but may be an elastic sleeve.

The utility model discloses in, circumference limit structure sets up between the lower lateral wall of framework 22 and fender ring portion 512, and this circumference limit structure is including fixing the inboard department at the lower lateral wall of framework 22 and along the axis direction of axis body 21 setting stop pin 53, the corresponding perforating hole of setting on fender ring portion 512, and this stop pin 53 passes the perforating hole.

Specifically, the lower side wall of the frame 22 is provided with a plug hole 24, and the rotation preventing pin 53 is fixed in the plug hole 24.

In other embodiments, a circumferential limiting structure may also be disposed between the retainer ring portion 512 and the left side wall or the right side wall of the frame body 22, the circumferential limiting structure includes a limiting groove disposed on the inner side surface of the left side wall or the right side wall of the frame body 22 and extending along the axial direction of the shaft body 21, and an anti-rotation pin fixed on the circumferential side of the retainer ring portion 512, one end of the anti-rotation pin, which is far away from the retainer ring portion 512, is inserted into the limiting groove, and the groove width of the limiting groove is matched with the outer diameter of the anti-rotation pin.

The utility model discloses in, be equipped with detection mechanism that resets between axis body 21 and bearing structure, this detection mechanism that resets is including fixing detection switch 71 on bearing structure, the corresponding detection piece 72 of fixing on axis body 21 that fixes, detects piece 72 and follows axis body 21 and rotate in step, and when absorbing next battery, rotate drive mechanism 30 drive pivot structure 20 and rotate, rotate to detection switch 71 department until detecting piece 72, pivot structure 20, suction nozzle structure 50 reset, are convenient for absorb the battery once more.

Specifically, the detecting plate 72 includes a sleeve ring sleeved on the shaft body 21, and a plate body connected to the sleeve ring, and a fastening member is disposed between the sleeve ring and the shaft body 21, and is typically a jackscrew.

In other embodiments, the reset detection mechanism may also be provided in a form including a photoelectric sensor fixed on the support structure and a detection through hole correspondingly disposed on the shaft body 21, and also can achieve reset detection of the rotating shaft structure 20 and the suction nozzle structure 50.

The utility model discloses in, bearing structure includes along the vertical fixing base 11 that sets gradually, fixes bearing frame 12 and the lid on fixing base 11 and establishes bearing housing 13 on one side of fixing base 11 is kept away from to bearing housing 12, and this axis body 21 passes bearing housing 13 and bearing frame 12, is equipped with the bearing between axis body 21 and bearing frame 12, and this rotation actuating mechanism 30 is fixed on fixing base 11 and is connected with the upper end transmission of axis body 21.

The rotation drive mechanism 30 is typically a motor, and a coupling is provided between an output shaft of the motor and an upper end portion of the shaft body 21. Of course, the rotary drive mechanism 30 may be a rotary electric cylinder.

Specifically, the fixing seat 11 includes a vertical plate 111, an upper connecting plate 112 disposed at an upper side of the vertical plate 111, and a lower connecting plate 113 disposed at a lower side of the vertical plate 111, the shaft body 21 passes through the lower connecting plate 113 and extends between the upper connecting plate 112 and the lower connecting plate 113, the motor is fixed on the upper connecting plate 112, an output shaft of the motor passes through the upper connecting plate 112 and extends between the upper connecting plate 112 and the lower connecting plate 113, and the coupling is connected between a portion of the output shaft of the motor passing through the upper connecting plate 112 and a portion of the shaft body 21 passing through the lower connecting plate 113. The vertical plate 111, the upper connecting plate 112, and the lower connecting plate 113 are generally formed integrally by machining.

The utility model discloses in, in order to facilitate the axis direction clearance of adjusting pivot structure 20, be equipped with the clearance adjustment structure between axis body 21 and bearing structure, this clearance adjustment structure can set up between axis body 21 and fixing base 11, also can set up between axis body 21 and bearing frame 12, can also set up between axis body 21 and a bearing that is close to fixing base 11.

For the convenience of installation, the clearance adjustment structure sets up between the axis body 21 and a bearing that is close to fixing base 11, this clearance adjustment structure establishes on the axis body 21 and set up the backing ring 81 in the upside department of bearing including the cover, the cover establishes on the axis body 21 and sets up the tight ring 82 in the top of backing ring 81 upside department, be equipped with the locking piece between tight ring 82 in top and axis body 21, still include along the circumference interval setting of axis body 21 two at least screw holes on the tight ring 82 in top, set up threaded rod 83 in the screw hole and set up lock nut 84 on threaded rod 83, the axis direction setting of threaded hole along axis body 21, threaded rod 83 passes the tight ring 82 in top and leans on the side of backing ring 81. Typically, the locking member is a jackscrew, and at least two locking members are spaced apart along the axial direction of the tightening ring 82.

The utility model discloses in, for the convenience of accurate equipment position department on assembling the electronic product with the battery, lower tip department at pivot structure 20 is fixed with vision background board 90, can distinguish with the colour of battery, and the CCD visual system of being convenient for shoots and carries out corresponding detection.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The pressure feedback type suction device is characterized by comprising a supporting structure, a rotating shaft structure arranged on the supporting structure in a rotating mode, a rotating driving mechanism used for driving the rotating shaft structure to rotate, a pressure detection component fixed to the lower end portion of the rotating shaft structure, a suction nozzle structure arranged right opposite to the pressure detection component and an elastic telescopic piece arranged between the suction nozzle structure and the pressure detection component, wherein the pressure detection component is slidably arranged on the lower end portion of the rotating shaft structure along the axis direction of the rotating shaft structure, and a circumferential limiting structure is arranged between the suction nozzle structure and the rotating shaft structure.

2. The pressure feedback suction device according to claim 1, wherein the rotation shaft structure comprises a shaft body, a mounting seat fixed at a lower end portion of the shaft body, the pressure detection part is fixed on the mounting seat, and the suction nozzle structure is slidably mounted on the mounting seat.

3. The pressure feedback type suction device according to claim 2, wherein the mounting seat is a frame body, the lower end of the shaft body is fixedly connected with the upper side wall of the frame body, and the lower side wall of the frame body is provided with a mounting hole which is coaxial with the shaft body; the pressure detection component is fixed in the frame body and arranged between the upper side wall and the lower side wall of the frame body, and the suction nozzle structure is installed at the installation hole in a sliding mode.

4. The pressure-feedback suction device according to claim 3, wherein a mounting plate is provided inside the frame, fasteners are provided between the left and right side walls of the frame and the corresponding sides of the mounting plate, respectively, and the pressure detection unit is fixed to the mounting plate.

5. The pressure feedback type suction device according to claim 3, wherein the suction nozzle structure comprises a suction nozzle base, the suction nozzle base comprises a sliding part which is slidably mounted at the mounting hole, a ring blocking part which is arranged inside the frame body and fixedly connected with the upper end part of the sliding part, the suction nozzle structure further comprises a suction nozzle which is arranged outside the frame body and fixedly connected with the lower end part of the sliding part, and an air passage which is communicated with the suction nozzle is arranged on the suction nozzle base.

6. The pressure feedback type suction device according to claim 5, wherein a T-shaped pressure head is provided between the suction nozzle holder and the pressure detection part, a receiving hole is provided in the T-shaped pressure head coaxially with the shaft body, a stem portion inserted into the receiving hole is provided in the suction nozzle holder, and a large-diameter end of the T-shaped pressure head abuts against the pressure detection part; one end of the elastic telescopic piece is sleeved on the small-diameter end of the T-shaped pressure head, and the other end of the elastic telescopic piece is abutted against the suction nozzle seat.

7. The pressure feedback type suction device according to claim 5, wherein the circumferential limiting structure is disposed between the lower sidewall of the frame body and the retainer ring portion, the circumferential limiting structure includes an anti-rotation pin fixed at an inner side of the lower sidewall of the frame body and disposed along an axial direction of the shaft body, and a through hole correspondingly disposed on the retainer ring portion, the anti-rotation pin passing through the through hole.

8. The pressure feedback aspiration device of claim 2, wherein a reset detection mechanism is disposed between the shaft and the support structure, and the reset detection mechanism comprises a detection switch fixed on the support structure and a corresponding detection sheet fixed on the shaft.

9. The pressure feedback type suction device according to any one of claims 2 to 8, wherein the supporting structure comprises a fixed seat, a bearing seat and a bearing end cover, the fixed seat, the bearing seat and the bearing end cover are sequentially arranged along a vertical direction, the bearing end cover is arranged on one side of the bearing seat far away from the fixed seat, the shaft body penetrates through the bearing end cover and the bearing seat, a bearing is arranged between the shaft body and the bearing seat, and the rotation driving mechanism is fixed on the fixed seat and is in transmission connection with the upper end part of the shaft body.

10. The pressure feedback suction device of claim 9, wherein a clearance adjustment structure is provided between the shaft and the support structure.

11. The pressure-feedback suction device according to claim 10, wherein the gap adjustment structure is disposed between the shaft body and one of the bearings close to the fixing base, and includes a cushion ring fitted over the shaft body and disposed at an upper side of one of the bearings close to the fixing base, a tightening ring fitted over the shaft body and disposed at an upper side of the cushion ring, a locking member disposed between the tightening ring and the shaft body, at least two threaded holes disposed at intervals in a circumferential direction of the shaft body on the tightening ring, a threaded rod disposed in the threaded hole, and a lock nut disposed on the threaded rod, the threaded hole being disposed in an axial direction of the shaft body, and the threaded rod passing through the tightening ring and abutting against a side surface of the cushion ring.

12. The pressure-feedback aspiration device of claim 1, wherein a visual background plate is affixed at a lower end of the spindle structure.