CN219026016U

CN219026016U - Automatic drilling device of lathe

Info

Publication number: CN219026016U
Application number: CN202223345670.6U
Authority: CN
Inventors: 王阳阳; 黄成龙; 杨立; 黄昊强
Original assignee: Shenzhen Chengwang Intelligent Equipment Co ltd
Current assignee: Enavit Technology Development Group Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-05-16
Anticipated expiration: 2032-12-13

Abstract

The utility model relates to the technical field of metal processing equipment, in particular to an automatic drilling device of a lathe. The automatic drilling device of the lathe comprises a mounting seat, a rotating shaft assembly, a driving assembly, a supporting assembly and a drill bit assembly, wherein the mounting seat is connected to the lathe; the rotating shaft assembly is rotatably connected to the mounting seat; the support component is connected to the mounting seat in a sliding manner and is connected to the rotating shaft component in a transmission manner; the drill bit assembly is connected to the supporting assembly and comprises a drill bit which can face to a workpiece to be machined; the driving assembly is in driving connection with the supporting assembly, so that the supporting assembly and the drill bit assembly on the supporting assembly can move along the mounting seat, and the drill bit assembly can be driven to approach to a workpiece to be machined. The automatic drilling device of the lathe can realize accurate positioning and drilling processing, improves the production efficiency and improves the processing precision of workpieces.

Description

Automatic drilling device of lathe

Technical Field

The utility model relates to the technical field of metal processing equipment, in particular to an automatic drilling device of a lathe.

Background

At present, a special manual punching machine for a common lathe is generally adopted in a modern industrial processing production line, and the feeding amount of a drill bit is manually adjusted and controlled by the common lathe, so that the processing precision is reduced in the process of processing a drilling workpiece, the drill bit is easily worn seriously, the precision requirement of a workpiece to be processed is influenced by the serious drill bit wear, and the drill bit is generally required to be replaced seriously, so that the production efficiency is definitely influenced by the replacement of the drill bit.

At present, regarding an automatic punching special machine of an ordinary lathe, although there are some scientific methods, for example, processing the workpiece to be drilled in multiple working procedures, and processing the same group of processed workpieces in a centralized way, by adopting the method, the time waste caused by processing other working procedures of the workpiece to be drilled can be reduced, but the drilling processing and the precision positioning cannot be realized at the same time, and the productivity of the workpiece drilling processing can be improved.

Disclosure of Invention

The utility model aims to provide an automatic drilling device for a lathe, which can realize accurate positioning and drilling processing, improve the production efficiency and improve the processing precision of workpieces.

To achieve the purpose, the utility model adopts the following technical scheme:

automatic drilling device of lathe includes:

the mounting seat is connected to the lathe;

the rotating shaft assembly is rotatably connected to the mounting seat;

the support component is connected with the mounting seat in a sliding manner and is connected with the rotating shaft component in a transmission manner;

the drill bit assembly is connected to the supporting assembly and comprises a drill bit which can face to a workpiece to be machined;

the driving assembly is in driving connection with the rotating shaft assembly, so that the supporting assembly and the drill bit assembly on the supporting assembly move along the mounting seat.

As an alternative scheme of the automatic drilling device of the lathe, the driving assembly comprises a first motor, a transmission part and a mounting frame, wherein the mounting frame is fixedly connected with one end of the mounting seat, which is far away from a workpiece to be machined, the first motor is connected to the outer side of the mounting frame through a connecting plate, the transmission part is fixedly connected with one end of the rotating shaft assembly, which is far away from the workpiece to be machined, an output shaft of the first motor penetrates through a through hole of the mounting frame and is connected with an input end of the transmission part, and an output end of the transmission part is connected with the rotating shaft assembly.

As an alternative scheme of the automatic drilling device of the lathe, the transmission part comprises a driving gear and a driven gear, the driving gear and the driven gear are both arranged in the mounting frame, the driving gear is connected with the output shaft of the first motor, the driven gear is connected with one end, far away from the workpiece to be machined, of the rotating shaft assembly, and the driving gear is meshed with the driven gear.

As an alternative scheme of automatic drilling equipment of lathe, the pivot subassembly includes pivot and dead axle, dead axle fixed connection in the installing frame, the pivot rotatable cover is located the dead axle, the drive unit still includes bearing housing and ball, driven gear fixed cover is located the bearing housing, the pivot with bearing housing fixed connection, the bearing housing passes through the ball with the dead axle rotates to be connected, so that driven gear rotates and can drive the pivot rotates.

As an alternative scheme of the automatic drilling device of the lathe, the supporting component comprises a sliding block and a supporting piece which are vertically arranged, the sliding block is slidably connected with the mounting seat, the sliding block penetrates through the mounting seat and can be connected with the rotating shaft in a transmission mode, and the supporting piece is connected with the upper end of the sliding block and is used for supporting the drill bit component.

As an alternative of the lathe automatic drilling device, the drill bit assembly comprises a drill bit base and at least two drill bits, the at least two drill bits are rotatably arranged above the drill bit base, and the drill bit assembly is connected with the supporting piece.

As an alternative of the automatic drilling device of the lathe, the supporting assembly further comprises a clamping seat, the clamping seat is arranged on the upper surface of the supporting piece, the drill bit base is slidably connected to the clamping seat, and a fixing piece is arranged at one end, far away from the drill bit, of the drill bit base so as to fix the drill bit base to the clamping seat.

As an alternative scheme of lathe automatic drilling device, the drill bit subassembly still includes connecting block, connecting axle and second motor, at least two the drill bit connect in the connecting block, the connecting block is rotatable locate the top of drill bit base, the connecting axle wear to establish and fixed connection in the connecting block, the one end of connecting axle connect in the output of second motor, the output rotates and drives the connecting axle rotates.

As an alternative scheme of lathe automatic drilling equipment, the drill bit subassembly still includes the revolving stage, revolving stage fixed connection in the top of drill bit base, the connecting block rotatable connect in the revolving stage, the inside of revolving stage is equipped with logical groove, the second motor connect in the outside of revolving stage, the pivot of second motor passes logical groove, the connecting axle can stretch into logical groove with the pivot of second motor is connected.

As an alternative scheme of the automatic drilling device of the lathe, a mounting plate is arranged on one side, connected with the rotating shaft assembly, of the mounting seat, a mounting hole is formed in the mounting plate, one end, far away from the driving assembly, of the rotating shaft assembly penetrates through the mounting hole, and the rotating shaft assembly is rotatably connected with the mounting plate.

The beneficial effects are that:

the utility model provides an automatic drilling device for a lathe, which comprises a mounting seat, a rotating shaft assembly, a driving assembly, a supporting assembly and a drill bit assembly, wherein the mounting seat is connected to the lathe; the rotating shaft assembly is rotatably connected to the mounting seat; the support component is connected to the mounting seat in a sliding manner, the support component is connected to the rotating shaft component in a transmission manner, so that the rotating shaft component can rotate to drive the support component to slide along the mounting seat, the drill bit component is connected to the support component, and the drill bit component comprises a drill bit which can face to a workpiece to be drilled; the driving assembly is connected to the supporting assembly in a driving mode, so that the supporting assembly and the drill bit assembly on the supporting assembly move along the mounting seat, the drill bit assembly can be driven to approach to a workpiece to be machined, the feeding amount of the drill bit is controlled through the driving assembly, and therefore different drilling depths are achieved. This lathe automatic drilling device can utilize drive assembly to provide power for pivot subassembly, and drive pivot subassembly transmission supporting component slides along the mount pad, can improve production efficiency, and mount pad and supporting component provide the direction conduction, have realized accurate location and drilling processing to improve work piece machining precision.

Drawings

FIG. 1 is a schematic diagram of the structure of the automatic drilling device of the lathe provided by the utility model;

fig. 2 is a schematic structural view of a matching part of a first motor and a driving gear of the automatic drilling device of the lathe;

FIG. 3 is a schematic view of a part of the structure of a transmission part of the automatic drilling device of the lathe;

fig. 4 is a schematic structural view of a mounting seat of the automatic drilling device of the lathe;

FIG. 5 is a schematic view of the structure of the support assembly of the automatic boring device of the lathe provided by the utility model;

FIG. 6 is a schematic view of the structure of the engaging portion of the support and bit assembly of the automatic boring device of the lathe provided by the present utility model;

fig. 7 is a schematic view of a part of a drill bit assembly of the automatic drilling device of the lathe.

In the figure:

1. a mounting base; 2. a spindle assembly; 3. a drive assembly; 4. a support assembly; 5. a drill bit assembly;

11. a mounting plate;

21. a rotating shaft; 22. fixing the shaft;

31. a transmission member; 311. a driven gear; 312. a drive gear; 313. a bearing sleeve; 314. a ball; 32. a first motor; 321. a connecting plate; 322. a speed reducer; 33. a mounting frame;

41. a slide block; 42. a support; 43. a clamping seat; 44. a connecting piece;

51. a drill base; 52. a drill bit; 53. a fixing member; 54. a rotary table; 55. a connecting shaft; 56. a connecting block; 57. and a second motor.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1 to 6, the present embodiment provides an automatic lathe drilling apparatus including a mount 1, a spindle assembly 2, a support assembly 4, a drill assembly 5, and a driving assembly 3. The mounting seat 1 is connected to the lathe, the rotating shaft assembly 2 is rotatably connected to the mounting seat 1, the supporting assembly 4 is slidably connected to the mounting seat 1, the supporting assembly 4 is in transmission connection with the rotating shaft assembly 2, and the rotating shaft assembly 2 can rotate to drive the supporting assembly 4 to slide along the mounting seat 1; the drill bit assembly 5 is connected to the support assembly 4, the drill bit assembly 5 comprises a drill bit 52, and the drill bit 52 can face a workpiece to be machined; the driving component 3 is in driving connection with the rotating shaft component 2, so that the supporting component 4 and the drill bit component 5 on the supporting component 4 can move along the mounting seat 1, and the drill bit component 5 can be driven to approach to a workpiece to be machined. This lathe automatic drilling device can utilize drive assembly 3 to provide power for pivot subassembly 2, and drive pivot subassembly 2 transmission supporting component 4 slides along mount pad 1, can improve production efficiency, and mount pad 1 and supporting component 4 provide the direction conduction, have realized accurate location and drilling processing to improve work piece machining precision.

Referring to fig. 1 to 3, in the automatic drilling device for a lathe of the present embodiment, the driving assembly 3 includes a first motor 32, a transmission member 31 and a mounting frame 33, the mounting frame 33 is fixedly connected to one end of the mounting seat 1 far away from a workpiece to be machined, the first motor 32 is connected to the outer side of the mounting frame 33 through a connecting plate 321, the transmission member 31 is fixedly connected to one end of the rotating shaft assembly 2 far away from the workpiece to be machined, an output shaft of the first motor 32 passes through a through hole of the connecting plate 321 and is connected to an input end of the transmission member 31, an output end of the transmission member 31 is connected to the rotating shaft assembly 2, so that the first motor 32 can drive the rotating shaft assembly 2 to rotate through driving the transmission member 31, and through the arrangement of the transmission member 31, the rotating speed of the rotating shaft assembly 2 can be smaller than that of the output shaft of the first motor 32, so as to prevent the rotating shaft assembly 2 from rotating too fast due to the too fast output shaft of the first motor 32, and in order to reduce the rotating speed of the first motor 32 better, the speed reducer 322 is arranged between the first motor 32 and the connecting plate 321, so as to reduce the rotating speed of the output shaft of the first motor 32.

Specifically, the transmission component 31 includes a driving gear 312 and a driven gear 311, the driving gear 312 and the driven gear 311 are both disposed in the mounting frame 33, the driving gear 312 is connected to an output shaft of the first motor 32, the driven gear 311 is connected to an end of the rotating shaft assembly 2 away from the workpiece to be machined, and the driving gear 312 is engaged with the driven gear 311, so that the output shaft of the first motor 32 can drive the driving gear 312 to rotate, the driving gear 312 rotates to drive the driven gear 311 to rotate, and the driven gear 311 rotates to drive the rotating shaft assembly 2 to rotate.

In the automatic drilling device for the lathe of the embodiment, one side, connected with the rotating shaft 21, of the mounting seat 1 is provided with the mounting plate 11, the mounting plate 11 is provided with a mounting hole, one end, far away from the driving component 3, of the rotating shaft component 2 is penetrated in the mounting hole, the rotating shaft component 2 is rotatably connected with the mounting plate 11, and the other end of the rotating shaft component 2 is connected with the driving component 3, so that the driving component 3 can drive the rotating shaft component 2 to rotate.

Specifically, referring to fig. 4, the rotating shaft assembly 2 includes a rotating shaft 21 and a fixed shaft 22, the fixed shaft 22 is fixedly connected to the mounting frame 33, the rotating shaft 21 is rotatably sleeved on the fixed shaft 22, the transmission assembly further includes a bearing sleeve 313 and a ball 314, the driven gear 311 is fixedly sleeved on the bearing sleeve 313, the rotating shaft 21 is fixedly connected with the bearing sleeve 313, and the driven gear 311 drives the bearing sleeve 313 to rotate so as to drive the rotating shaft 21 to rotate; the bearing housing 313 is rotatably connected to the fixed shaft 22 by means of balls 314, which allows the bearing housing 313 to be rotated more flexibly.

Further, in the automatic drilling device for a lathe of this embodiment, the supporting component 4 includes a vertically disposed slider 41 and a supporting member 42, the slider 41 is slidably connected to the mounting seat 1, the slider 41 is threaded and is in driving connection with the rotating shaft 21, the supporting member 42 is connected to the upper end of the slider 41 and is used for supporting the drill bit component 5, the surface of the rotating shaft 21 is provided with external threads, the slider 41 and the inner surface of the rotating shaft 21 are provided with internal threads, and the rotating shaft 21 rotates to drive the slider 41 to move along the length direction of the rotating shaft 21, so that the slider 41 slides along the mounting seat 1 to drive the drill bit component 5 to move along the direction of the mounting seat 1.

Specifically, referring to fig. 5 and 6, the support assembly 4 further includes a connecting member 44, the connecting member 44 is fixedly connected to the upper end of the slider 41, a ladder-shaped protruding strip is disposed at the upper end of the connecting member 44, a ladder-shaped groove is disposed at the bottom of the support member 42, and the ladder-shaped protruding strip is adapted to the ladder-shaped groove, so that the support member 42 is connected to the upper portion of the slider 41 through the connecting member 44.

In the automatic drilling device of the lathe of the present embodiment, the drill bit assembly 5 includes a drill bit base 51 and at least two drill bits 52, wherein the at least two drill bits 52 are rotatably disposed above the drill bit base 51, and the diameters of the at least two drill bits 52 are different to meet the requirements of different drilling diameters. The support assembly 4 further comprises a clamping seat 43, the clamping seat 43 is arranged on the upper surface of the support member 42, the drill bit base 51 is slidably connected to the clamping seat 43, a fixing piece 53 is arranged at one end, far away from the drill bit 52, of the drill bit base 51, a sliding groove is formed in the clamping seat 43, a protrusion is arranged on the drill bit base 51, the drill bit base 51 is slidably connected to the sliding groove, the sliding groove is matched with the protrusion, a conical hole is formed in the protruding portion of the drill bit base 51, the fixing piece 53 is arranged at one end with the largest cross section of the conical hole, the diameter of the fixing piece 53 is equal to the diameter of one end with the largest cross section of the conical hole, and along with the increase of screwing depth of the fixing piece 53 and the drill bit base 51, the fixing piece 53 can expand the drill bit base 51, and accordingly the drill bit base 51 and the clamping seat 43 are in interference fit, and the drill bit base 51 is fixed to the clamping seat 43.

Specifically, referring to fig. 7, the drill bit assembly 5 further includes a connection block 56, a connection shaft 55, and a second motor 57, at least two drill bits 52 are connected to the connection block 56, and the connection block 56 is rotatably disposed above the drill bit base 51, so that the rotation connection block 56 can drive the drill bits 52 to rotate, so as to switch the drill bits 52; the connecting shaft 55 is penetrated through and fixedly connected to the connecting block 56, one end of the connecting shaft 55 is connected to the rotating shaft 21 of the second motor 57, the rotating shaft 21 of the second motor 57 rotates to drive the connecting shaft 55 to rotate, thereby driving the connecting block 56 connected with the drill bit 52 to rotate, and rotating the connecting block 56 enables the drill bit 52 matched with the required drilling size to face to a workpiece to be machined according to the required drilling size.

In this embodiment, the drill bit assembly 5 includes four drill bits 52 with different diameters, the four drill bits 52 are respectively connected to four sides of the connecting block 56, and an included angle between any two drill bits 52 is 90 degrees.

In order to make the connection block 56 and the rotating shaft 21 of the second motor 57 have sufficient support, the drill bit assembly 5 further comprises a rotation table 54, the rotation table 54 is fixedly connected above the drill bit base 51, the connection block 56 is rotatably connected to the rotation table 54 and can provide sufficient support for the connection block 56, a through groove is formed in the rotation table 54, the second motor 57 is connected to the outer side of the rotation table 54, the rotating shaft 21 of the second motor 57 penetrates through the through groove of the rotation table 54, and the connecting shaft 55 can extend into the through groove to be connected with the rotating shaft 21 of the second motor 57, so that the rotating shaft 21 of the second motor 57 rotates to drive the connecting shaft 55 to rotate on the rotation table 54.

The embodiment also provides a using method of the automatic drilling device using the lathe, which comprises the following steps: the second motor 57 drives the rotating shaft 21 to rotate, the rotating shaft 21 rotates to drive the connecting shaft 55 to rotate, the connecting shaft 55 rotates to drive the connecting block 56 to rotate, the connecting block 56 rotates by 90 degrees to be switched to the drill bit 52 at the adjacent position, the drill bit 52 suitable for drilling is selected according to the diameter required to be drilled, the connecting block 56 rotates by a corresponding angle, the corresponding drill bit 52 is adjusted to face the workpiece to be processed, then the output end of the first motor 32 is driven to rotate to drive the driving gear 312 to rotate, the driving gear 312 rotates to drive the driven gear 311 to rotate, the rotating shaft 21 is driven to rotate, the rotating shaft 21 rotates to drive the supporting component 4 to move towards the workpiece to be processed along the length direction of the rotating shaft 21, and the supporting component 4 drives the drill bit component 5 to move towards the workpiece to be processed, so that drilling of the drill bit 52 is realized.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. Automatic drilling equipment of lathe, its characterized in that includes:

the mounting seat (1), the said mounting seat (1) is connected to lathe;

the rotating shaft assembly (2) is rotatably connected to the mounting seat (1);

the support component (4), the said support component (4) is connected to the said mount pad (1) slidably, the said support component (4) is connected to the said spindle assembly (2) in a driving way;

-a drill bit assembly (5), the drill bit assembly (5) being connected to the support assembly (4), the drill bit assembly (5) comprising a drill bit (52), the drill bit (52) being capable of being directed towards a workpiece to be machined;

the driving assembly (3), the driving assembly (3) is in driving connection with the rotating shaft assembly (2), so that the supporting assembly (4) and the drill bit assembly (5) on the supporting assembly (4) move along the mounting seat (1).

2. The automatic drilling device for lathes according to claim 1, characterized in that the driving assembly (3) comprises a first motor (32), a transmission part (31) and a mounting frame (33), the mounting frame (33) is fixedly connected to one end of the mounting seat (1) far away from the workpiece to be machined, the first motor (32) is connected to the outer side of the mounting frame (33) through a connecting plate (321), the transmission part (31) is fixedly connected to one end of the rotating shaft assembly (2) far away from the workpiece to be machined, an output shaft of the first motor (32) penetrates through a through hole of the mounting frame (33) and is connected with an input end of the transmission part (31), and an output end of the transmission part (31) is connected with the rotating shaft assembly (2).

3. The automatic drilling device for lathes as claimed in claim 2, wherein the transmission member (31) comprises a driving gear (312) and a driven gear (311), the driving gear (312) and the driven gear (311) are both arranged in the mounting frame (33), the driving gear (312) is connected to the output shaft of the first motor (32), the driven gear (311) is connected to the end, far away from the workpiece to be machined, of the spindle assembly (2), and the driving gear (312) is in meshed connection with the driven gear (311).

4. A lathe automatic drilling device according to claim 3, characterized in that the rotating shaft assembly (2) comprises a rotating shaft (21) and a fixed shaft (22), the fixed shaft (22) is fixedly connected to the mounting frame (33), the rotating shaft (21) is rotatably sleeved on the fixed shaft (22), the transmission part (31) further comprises a bearing sleeve (313) and a ball (314), the driven gear (311) is fixedly sleeved on the bearing sleeve (313), the rotating shaft (21) is fixedly connected with the bearing sleeve (313), and the bearing sleeve (313) is rotatably connected with the fixed shaft (22) through the ball (314), so that the driven gear (311) can rotate to drive the rotating shaft (21).

5. The automatic drilling device of a lathe according to claim 4, characterized in that said supporting assembly (4) comprises a vertically arranged slide block (41) and a supporting member (42), said slide block (41) being slidably connected to said mounting seat (1), said slide block (41) being threaded and being drivingly connected to said spindle (21), said supporting member (42) being connected to the upper end of said slide block (41) for supporting said drill bit assembly (5).

6. The automatic drilling device of a lathe according to claim 5, characterized in that said drill bit assembly (5) comprises a drill bit seat (51) and at least two of said drill bits (52), at least two of said drill bits (52) being rotatably arranged above said drill bit seat (51), said drill bit assembly (5) being connected to said support (42).

7. The automatic drilling device for lathes as claimed in claim 6, characterized in that said support assembly (4) further comprises a clamping seat (43), said clamping seat (43) is provided on the upper surface of said support member (42), said drill base (51) is slidably connected to said clamping seat (43), and a fixing member (53) is provided at the end of said drill base (51) remote from said drill (52) for fixing said drill base (51) to said clamping seat (43).

8. The automatic drilling device for lathes according to claim 6, wherein the drill bit assembly (5) further comprises a connecting block (56), a connecting shaft (55) and a second motor (57), at least two drill bits (52) are connected to the connecting block (56), the connecting block (56) is rotatably arranged above the drill bit base (51), the connecting shaft (55) is penetrated and fixedly connected to the connecting block (56), one end of the connecting shaft (55) is connected to an output end of the second motor (57), and the output end rotates to drive the connecting shaft (55) to rotate.

9. The automatic drilling device for a lathe according to claim 8, wherein the drill bit assembly (5) further comprises a rotary table (54), the rotary table (54) is fixedly connected to the upper portion of the drill bit base (51), the connecting block (56) is rotatably connected to the rotary table (54), a through groove is formed in the rotary table (54), the second motor (57) is connected to the outer side of the rotary table (54), a rotating shaft of the second motor (57) penetrates through the through groove, and the connecting shaft (55) can extend into the through groove to be connected with the rotating shaft of the second motor (57).

10. The automatic drilling device for the lathe according to claim 1, wherein a mounting plate (11) is arranged on one side, connected with the rotating shaft assembly (2), of the mounting seat (1), a mounting hole is formed in the mounting plate (11), one end, far away from the driving assembly (3), of the rotating shaft assembly (2) penetrates through the mounting hole, and the rotating shaft assembly (2) is rotatably connected with the mounting plate (11).