阅读说明：本技术 一种全自动换枪钻、换导套的数控卧式深孔钻床 (Full-automatic numerical control horizontal deep hole drilling machine capable of replacing gun drill and guide sleeve ) 是由 梁泽军 郭新帅 于 2021-07-26 设计创作，主要内容包括：本发明公开了一种全自动换枪钻、换导套的数控卧式深孔钻床,涉及数控卧式深孔钻床领域,包括设备框架,所述设备框架顶部设置有托盘,所述托盘顶部设置有多组刀柄放置架,所述托盘顶部设置有多组枪钻轴承放置架,所述托盘顶部设置有一对线轨,所述线轨顶部滑动连接有横梁,所述横梁一侧设置有轨道,所述轨道顶部安装有第二伺服电机。本发明通过第一伺服电机带动减速机转动,经过减速机减缓转速的齿轮与齿条配合,从而带动横梁移动至需要抓取的枪钻上方,再通过第二伺服电机带动丝杆转动,进而调整机械臂杆至枪钻处,通过手指气缸抓取枪钻轴承及刀柄,从而实现自动选取枪钻的功能,避免工人在刀库中手动挑选效率较低的弊病。(The invention discloses a full-automatic gun drill and guide sleeve replacing numerical control horizontal deep hole drilling machine, which relates to the field of numerical control horizontal deep hole drilling machines and comprises an equipment frame, wherein a tray is arranged at the top of the equipment frame, a plurality of groups of tool shank placing frames are arranged at the top of the tray, a plurality of groups of gun drill bearing placing frames are arranged at the top of the tray, a pair of linear rails is arranged at the top of the tray, the tops of the linear rails are connected with a cross beam in a sliding mode, a track is arranged on one side of the cross beam, and a second servo motor is arranged at the top of the track. According to the automatic selection device, the first servo motor drives the speed reducer to rotate, the gear and the rack which reduce the rotating speed through the speed reducer are matched, so that the cross beam is driven to move to the position above a gun drill to be picked, the second servo motor drives the screw rod to rotate, the mechanical arm rod is adjusted to the position of the gun drill, the gun drill bearing and the tool handle are picked through the finger cylinder, the function of automatically selecting the gun drill is achieved, and the defect that a worker manually selects a gun drill in a tool magazine with low efficiency is avoided.)

1. The utility model provides a full-automatic trade gun drill, trade horizontal deep-hole drilling machine of numerical control of guide pin bushing, includes equipment frame (1), its characterized in that: the device comprises an equipment frame (1), a tray (19) is arranged at the top of the equipment frame (1), a plurality of groups of tool holder placing frames (4) are arranged at the top of the tray (19), a plurality of groups of gun drill bearing placing frames (8) are arranged at the top of the tray (19), a pair of wire rails (3) are arranged at the top of the tray (19), a cross beam (10) is connected to the top of each wire rail (3) in a sliding manner, a track (16) is arranged on one side of each cross beam (10), a second servo motor (14) is installed at the top of each track (16), a lead screw (15) is arranged at the output end of each second servo motor (14), a mechanical arm rod (17) is sleeved on the outer side of each lead screw (15), a plurality of groups of finger cylinders (18) are arranged at the bottom of each mechanical arm rod (17), one side of the equipment frame (1) is connected with a shaft frame (20) through a hydraulic lifting rod, a plurality of groups of tool following frame connecting rods (28) are connected to the top of the shaft frame (20) in a sliding manner, follow rest connecting rod (28) bottom is provided with follow rest (27), follow rest connecting rod (28) one side is provided with sprocket (21), pedestal (20) top both ends are provided with a pair of follow sword sprocket (23), servo motor (25) are installed to pedestal (20) top one end, servo motor (25) output with follow sword sprocket (23) between be connected with sword chain (24), follow sword sprocket (23) between be connected with the multiunit sprocket (21) complex chain (22).

2. The full-automatic gun-changing drill and guide sleeve-changing numerical control horizontal deep hole drilling machine according to claim 1, characterized in that: the drill handle is characterized in that a tool handle (5) is arranged at the top of the tool handle placing frame (4), a gun drill bearing (9) is arranged at the top of the gun drill bearing placing frame (8), and a gun drill (6) penetrates through the gun drill bearing (9) and the inside of the tool handle (5).

3. The full-automatic gun-changing drill and guide sleeve-changing numerical control horizontal deep hole drilling machine according to claim 1, characterized in that: the drill rod supporting device is characterized in that racks (2) are arranged on two sides of the tray (19), and a plurality of groups of adjusting blocks (7) matched with the gun drill bearing placing frame (8) are arranged on the top of the tray (19).

4. The full-automatic gun-changing drill and guide sleeve-changing numerical control horizontal deep hole drilling machine according to claim 3, characterized in that: crossbeam (10) both sides all are provided with first servo motor (11), first servo motor (11) output is provided with speed reducer (12), speed reducer (12) output be provided with rack (2) complex gear (13).

5. The full-automatic gun-changing drill and guide sleeve-changing numerical control horizontal deep hole drilling machine according to claim 1, characterized in that: a guide sleeve seat (26) is arranged on one side of the shaft frame (20), a fixed block (32) is arranged at one end of the guide sleeve seat (26), the fixed block (32) is far away from one end of the guide sleeve seat (26) and is provided with a guide sleeve (33), and a main shaft (38) is connected to one side of the shaft frame (20) in a sliding mode through a screw rod.

6. The full-automatic gun-changing drill and guide sleeve-changing numerical control horizontal deep hole drilling machine according to claim 5, characterized in that: fixed block (32) inside sliding connection has multiunit ripples pearl (34), fixed block (32) inside be provided with the multiunit with ripples pearl (34) complex spring (35), fixed block (32) inside be provided with the multiunit with spring (35) complex machine rice screw (31).

7. The full-automatic gun-changing drill and guide sleeve-changing numerical control horizontal deep hole drilling machine according to claim 1, characterized in that: the top of the follow rest (27) is connected with a bearing gland (29) in a sliding mode, and a gland cylinder (30) matched with the bearing gland (29) is arranged at the top of the follow rest (27).

8. The full-automatic gun-changing drill and guide sleeve-changing numerical control horizontal deep hole drilling machine according to claim 1, characterized in that: gun drill bearing (9) have been placed at follow rest (27) top, follow rest (27) top seted up with gun drill bearing (9) complex recess.

9. The full-automatic gun-changing drill and guide sleeve-changing numerical control horizontal deep hole drilling machine according to claim 5, characterized in that: equipment frame (1) one side sliding connection has lead screw sliding platform (37), lead screw sliding platform (37) one end is provided with support (36), uide bushing motor (39) are installed to support (36) one side, uide bushing motor (39) output is provided with uide bushing speed reducer (40), uide bushing speed reducer (40) output runs through support (36) and is connected with carousel (42), carousel (42) are close to equipment frame (1) one side be provided with the multiunit with uide bushing (33) complex uide bushing fixed chuck (41).

Technical Field

The invention relates to the field of numerical control horizontal deep-hole drilling machines, in particular to a full-automatic gun drill and guide sleeve replacing numerical control horizontal deep-hole drilling machine.

Background

The numerical control horizontal deep hole drilling machine is a machine tool which performs drilling processing on deep hole systems and precise shallow holes with the length-diameter ratio larger than 10 by means of specific drilling technologies, such as gun drill, BTA drill, jet-suction drill and the like, adopts a horizontal structure operating system to use CNC control, is called as the numerical control horizontal deep hole drilling machine, is mostly in a horizontal and three-coordinate horizontal structure, and is provided with a cutting oil high-pressure, cooling and filtering system which is independent and complete so as to guarantee the supply of cutting oil which is proper, clean and moderate in temperature.

During drilling, cutting fluid enters from the middle of a drill rod, is sprayed to a cutting area through a small hole in the head of the drill bit, and then carries cutting scraps to be discharged from a V-shaped groove of the drill bit, the gun drill is suitable for machining deep holes with the hole diameter of 2-20 mm and the hole depth to hole diameter ratio of more than 100, after drilling of a hole of one specification is finished, the gun drill is generally manually replaced in a tool magazine by a worker, and then is manually replaced by a tool.

Since the advent of the digital control horizontal deep hole drill, the digital control horizontal deep hole drill is widely used in a plurality of fields, the problem of deep hole processing is solved, along with the development of industrial technology and the rising of labor cost, the upgrading of the digital control machine tool is not slow, the existing horizontal deep hole drill is popularized in each field, but the use efficiency is not improved all the time, mainly, each hole with one specification is processed, a gun drill, a guide sleeve and a support rubber sleeve are required to be manually replaced, a large amount of time is wasted, and the labor intensity of workers is increased.

Disclosure of Invention

Based on the technical problems that the existing numerical control horizontal deep hole drilling machine is low in utilization rate of workers and high in proficiency and technical requirements on operators.

In order to achieve the purpose, the invention provides the following technical scheme: a full-automatic gun drill replacing and guide sleeve replacing numerical control horizontal deep hole drilling machine comprises an equipment frame, wherein a tray is arranged at the top of the equipment frame, a plurality of groups of tool shank placing racks are arranged at the top of the tray, a plurality of groups of gun drill bearing placing racks are arranged at the top of the tray, a pair of linear rails are arranged at the top of the tray, a beam is slidably connected to the top of the linear rails, a track is arranged on one side of the beam, a second servo motor is arranged at the top of the track, a lead screw is arranged at the output end of the second servo motor, a mechanical arm rod is sleeved on the outer side of the lead screw, a plurality of groups of finger cylinders are arranged at the bottom of the mechanical arm rod, a shaft bracket is connected to one side of the equipment frame through a hydraulic lifting rod, a plurality of groups of follow rest connecting rods are slidably connected to the top of the shaft bracket, a follow rest is arranged at the bottom of the follow rest connecting rod, a chain wheel is arranged on one side of the follow rest connecting rod, a pair of follow rest chain wheels are arranged at two ends of the top of the shaft bracket, the servo motor is installed to pedestal top one end, the servo motor output with be connected with the sword chain between the sword sprocket, with be connected with between the sword sprocket with the multiunit sprocket complex chain.

Through adopting above-mentioned technical scheme, the rifle that sets up bores the bearing rack and bears the rifle and bore the bearing, through line rail and crossbeam cooperation, through track and the cooperation of mechanical arm pole, it rotates to drive the lead screw through second servo motor, and then drive the mechanical arm pole, press from both sides through pointing the cylinder and get the rifle and bore, it removes to drive the follower rest through the follower rest connecting rod, support the rifle and bore through the follower rest, it removes to drive the follower rest connecting rod through the sprocket, drive the chain through the follower knife sprocket, drive the follower knife chain through servo motor, drive the sprocket through the chain.

The invention is further provided with a cutter handle arranged at the top of the cutter handle placing frame, a gun drill bearing is arranged at the top of the gun drill bearing placing frame, and a gun drill penetrates through the gun drill bearing and the interior of the cutter handle.

Through adopting above-mentioned technical scheme, the fixed gun drill of handle of a knife that sets up, fix the gun drill through gun drill bearing, carry out the drilling operation through the gun drill that sets up.

The invention is further provided with racks on two sides of the tray, and a plurality of groups of adjusting blocks matched with the gun drill bearing placing frame are arranged on the top of the tray.

Through adopting above-mentioned technical scheme, the rack and the gear cooperation that set up to drive the crossbeam and remove, adjust the interval of gun drill bearing rack through the regulating block, make it and gun drill bearing cooperation.

The invention is further provided that the first servo motor is arranged on both sides of the cross beam, the output end of the first servo motor is provided with a speed reducer, and the output end of the speed reducer is provided with a gear matched with the rack.

Through adopting above-mentioned technical scheme, the first servo motor that sets up drives the speed reducer and rotates, and then drives gear revolve to drive the crossbeam and remove.

The invention is further arranged in that one side of the shaft bracket is provided with a guide sleeve seat, one end of the guide sleeve seat is provided with a fixed block, one end of the fixed block, which is far away from the guide sleeve seat, is provided with a guide sleeve, and one side of the shaft bracket is connected with a main shaft in a sliding way through a screw rod.

Through adopting above-mentioned technical scheme, the fixed uide bushing of uide bushing seat that sets up, through the fixed rifle drill of uide bushing, drive the rifle drill through the main shaft and carry out the drilling.

The invention is further arranged in such a way that a plurality of groups of wave beads are connected in the fixed block in a sliding way, a plurality of groups of springs matched with the wave beads are arranged in the fixed block, and a plurality of groups of machine-meter screws matched with the springs are arranged in the fixed block.

Through adopting above-mentioned technical scheme, the ripples pearl that sets up and spring cooperation are fixed the uide bushing, through the motor rice screw adjusting spring.

The invention is further provided that the top of the follow rest is connected with a bearing gland in a sliding way, and the top of the follow rest is provided with a gland cylinder matched with the bearing gland.

Through adopting above-mentioned technical scheme, the fixed gun drill bearing of bearing gland that sets up drives the bearing gland through the gland cylinder and removes.

The drill device is further provided with a gun drill bearing arranged at the top of the follow rest, and a groove matched with the gun drill bearing is formed in the top of the follow rest.

Through adopting above-mentioned technical scheme, the rifle drill is fixed to the rifle drill bearing that sets up, fixes the rifle drill bearing through the recess.

The invention is further set up in that one side of the equipment frame is connected with a screw rod sliding platform in a sliding manner, one end of the screw rod sliding platform is provided with a support, one side of the support is provided with a guide sleeve motor, the output end of the guide sleeve motor is provided with a guide sleeve speed reducer, the output end of the guide sleeve speed reducer penetrates through the support and is connected with a turntable, and one side of the turntable, which is close to the equipment frame, is provided with a plurality of groups of guide sleeve fixing chucks matched with the guide sleeve.

Through adopting above-mentioned technical scheme, the lead screw slide bracket that sets up drives the support and removes, through support fixed uide bushing motor and carousel, drives the uide bushing speed reducer rotation through the uide bushing motor, and the output shaft after the uide bushing speed reducer speed reduction drives the carousel and rotates, presss from both sides the uide bushing through the fixed chuck clamp of uide bushing.

In summary, the invention mainly has the following beneficial effects:

1. according to the automatic selection device, the first servo motor drives the speed reducer to rotate, the gear and the rack which reduce the rotating speed through the speed reducer are matched, so that the cross beam is driven to move to the position above a gun drill to be captured, the second servo motor drives the screw rod to rotate, the mechanical arm rod is adjusted to the position of the gun drill, the gun drill bearing and the tool handle are captured through the finger cylinder, the function of automatically selecting the gun drill is achieved, and the defect that a worker manually selects a gun drill in a tool magazine with low efficiency is avoided;

2. according to the automatic cutter locking device, the follow rest is matched with the bearing gland to fix the gun drill bearing, when a cutter needs to be changed, the main shaft loosens the gun drill to be locked and retreats, the gun drill is fixed on the follow rest along with the gun drill bearing, the gland cylinder drives the bearing gland to retreat so as to release the locking of the gun drill bearing, the changed gun drill and the gun drill bearing are placed in the groove, the cutter handle enters the main shaft after the gun drill is locked, the cutter striking cylinder is started, the cutter head is tensioned so as to complete automatic cutter locking, and the manual replacement is not needed, so that the working efficiency is greatly improved.

Drawings

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is an enlarged view of the guide sleeve replacement structure of the present invention;

FIG. 3 is a diagram of a tool magazine of the present invention;

FIG. 4 is a structural view of a tray of the present invention;

FIG. 5 is a cross beam construction of the present invention;

FIG. 6 is a view of the lever arm structure of the present invention;

FIG. 7 is a block diagram of the pedestal of the present invention;

FIG. 8 is a view of the follower holder of the present invention;

FIG. 9 is a view of the guide sleeve base of the present invention;

fig. 10 is a side cross-sectional view of the guide sleeve holder of the present invention.

In the figure: 1. an equipment frame; 2. a rack; 3. a wire track; 4. a knife handle placing rack; 5. a knife handle; 6. gun drilling; 7. an adjusting block; 8. a gun drill bearing placing frame; 9. a gun drill bearing; 10. a cross beam; 11. a first servo motor; 12. a speed reducer; 13. a gear; 14. a second servo motor; 15. a screw rod; 16. a track; 17. a mechanical arm lever; 18. a finger cylinder; 19. a tray; 20. a pedestal; 21. a sprocket; 22. a chain; 23. a cutter following chain wheel; 24. a cutter following chain; 25. a servo motor; 26. a guide sleeve seat; 27. a follower rest; 28. a follower rest connecting rod; 29. a bearing gland; 30. a gland cylinder; 31. a machine-meter screw; 32. a fixed block; 33. a guide sleeve; 34. beads; 35. a spring; 36. a support; 37. a screw rod sliding platform; 38. a main shaft; 39. a guide sleeve motor; 40. a guide sleeve speed reducer; 41. the guide sleeve fixes the chuck; 42. a turntable.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following describes an embodiment of the present invention based on its overall structure.

A full-automatic gun drill and guide sleeve replacing numerical control horizontal deep hole drilling machine comprises an equipment frame 1, a tray 19 is arranged at the top of the equipment frame 1, a plurality of groups of tool holder placing frames 4 are arranged at the top of the tray 19, a plurality of groups of gun drill bearing placing frames 8 are arranged at the top of the tray 19, gun drill bearings 9 are carried by the arranged gun drill bearing placing frames 8, a pair of linear rails 3 are arranged at the top of the tray 19 and are matched with a cross beam 10 through the linear rails 3, the top of the linear rails 3 is connected with the cross beam 10 in a sliding mode, a rail 16 is arranged on one side of the cross beam 10 and is matched with a mechanical arm rod 17 through the rail 16, a second servo motor 14 is arranged at the top of the rail 16, a lead screw 15 is arranged at the output end of the second servo motor 14, the lead screw 15 is driven to rotate through the second servo motor 14 so as to drive the mechanical arm rod 17, a mechanical arm rod 17 is sleeved on the outer side of the lead screw 15, a plurality of groups of finger cylinders 18 are arranged at the bottom of the mechanical arm rod 17, get gun drill 6 through finger cylinder 18 clamp, equipment frame 1 one side is connected with pedestal 20 through hydraulic lifting rod, there are multiunit follower connecting rod 28 at pedestal 20 top sliding connection, follower connecting rod 28 through the setting drives follower 27 and removes, follower connecting rod 28 bottom is provided with follower 27, support gun drill 6 through follower 27, follower connecting rod 28 one side is provided with sprocket 21, it removes to drive follower connecting rod 28 through sprocket 21, 20 top both ends of pedestal are provided with a pair of follower sprocket 23, drive chain 22 through follower sprocket 23, servo motor 25 is installed to pedestal 20 top one end, drive follower chain 24 through servo motor 25, be connected with follower chain 24 between servo motor 25 output and the follower sprocket 23, be connected with between the follower sprocket 23 with multiunit sprocket 21 complex chain 22, drive sprocket 21 through chain 22.

Referring to fig. 3, a tool holder 5 is arranged at the top of the tool holder placing frame 4, a gun drill 6 is fixed through the tool holder 5, a gun drill bearing 9 is arranged at the top of the gun drill bearing placing frame 8, the gun drill 6 is fixed through the gun drill bearing 9, the gun drill 6 penetrates through the gun drill bearing 9 and the tool holder 5, and drilling is performed through the gun drill 6.

Referring to fig. 3, racks 2 are arranged on both sides of the tray 19, the racks 2 are matched with the gear 13 to drive the beam 10 to move, a plurality of groups of adjusting blocks 7 matched with the gun drill bearing placing frames 8 are arranged on the top of the tray 19, and the adjusting blocks 7 are used for adjusting the distance between the gun drill bearing placing frames 8 to enable the gun drill bearing placing frames to be matched with the gun drill bearings 9.

Referring to fig. 4, two sides of the cross beam 10 are both provided with a first servo motor 11, an output end of the first servo motor 11 is provided with a speed reducer 12, an output end of the speed reducer 12 is provided with a gear 13 matched with the rack 2, and the first servo motor 11 is arranged to drive the speed reducer 12 to rotate, so as to drive the gear 13 to rotate, thereby driving the cross beam 10 to move.

Referring to fig. 10, a guide sleeve seat 26 is disposed on one side of the shaft bracket 20, a guide sleeve 33 is fixed by the guide sleeve seat 26, a fixing block 32 is disposed at one end of the guide sleeve seat 26, a guide sleeve 33 is disposed at an end of the fixing block 32 away from the guide sleeve seat 26, and the gun drill 6 is fixed by the guide sleeve 33.

Referring to fig. 10, a plurality of groups of beads 34 are slidably connected inside the fixing block 32, a plurality of groups of springs 35 matched with the beads 34 are arranged inside the fixing block 32, the guide sleeve 33 is fixed by matching the arranged beads 34 with the springs 35, a plurality of groups of machine-meter screws 31 matched with the springs 35 are arranged inside the fixing block 32, and the springs 35 are adjusted by the machine-meter screws 31.

Referring to fig. 7, a bearing gland 29 is slidably connected to the top of the following tool rest 27, the gun drill bearing 9 is fixed by the bearing gland 29, a gland cylinder 30 matched with the bearing gland 29 is arranged at the top of the following tool rest 27, and the bearing gland 29 is driven to move by the gland cylinder 30.

Referring to fig. 7, a gun drill bearing 9 is disposed on the top of the follower 27, the gun drill 6 is fixed by the gun drill bearing 9, and a groove matched with the gun drill bearing 9 is formed in the top of the follower 27, and the gun drill bearing 9 is fixed by the groove.

Referring to fig. 1 and 2, a screw sliding platform 37 is slidably connected to one side of the apparatus frame 1, a bracket 36 is disposed at one end of the screw sliding platform 37, the bracket 36 is driven to move by the arranged screw rod sliding platform 37, the turntable 42 and the guide sleeve fixing chuck 41 are further driven to move, thereby the guide sleeve 33 is matched with the guide sleeve seat 26, one side of the bracket 36 is provided with a guide sleeve motor 39, the output end of the guide sleeve motor 39 is provided with a guide sleeve speed reducer 40, when the guide sleeve 33 is replaced, the guide sleeve motor 39 drives the guide sleeve speed reducer 40 to rotate, the output shaft reduced by the guide sleeve speed reducer 40 drives the turntable 42 to rotate, and further adjusting the position of the guide sleeve 33, wherein the output end of the guide sleeve speed reducer 40 penetrates through the bracket 36 and is connected with a rotary table 42, one side of the rotary table 42, which is close to the equipment frame 1, is provided with a plurality of groups of guide sleeve fixing chucks 41 matched with the guide sleeve 33, and the guide sleeve 33 is clamped through the guide sleeve fixing chucks 41.

The working principle of the invention is as follows: firstly, an external power supply is switched on, a guide sleeve is arranged on different guide sleeve fixing chucks 41 according to specification and number, a gun drill 6 is arranged on a tool holder placing rack 4 with different models according to specification and number, a follow rest 27 is matched with a bearing gland 29 to fix a gun drill bearing 9, a main shaft 38 locks a tool holder during working and drives the gun drill 6 to carry out drilling operation, when the gun drill 6 needs to be replaced, the main shaft 38 stops drilling and starts resetting, the gun drill 6 is unlocked and continues to retreat after resetting and stopping, at the moment, the gun drill 6 is fixed on the follow rest 27 along with the gun drill bearing 9, a gland cylinder 30 drives the bearing gland 29 to retreat so as to release the locking of the gun drill bearing 9, meanwhile, a screw rod sliding platform 37 drives a support 36 to move, a rotary table 42 and the guide sleeve fixing chuck 41 are further driven to move, a guide sleeve motor 39 is matched to drive a guide sleeve reducer 40 to rotate, an output shaft decelerated by a guide sleeve reducer 40 drives a turntable 42 to rotate, so that the position of a guide sleeve fixing chuck 41 is adjusted, the guide sleeve fixing chuck 41 is aligned with a guide sleeve seat 26, a guide sleeve 33 to be replaced is taken down, a guide sleeve 33 which is properly adjusted is installed in the guide sleeve seat 26 after being taken down, a shaft bracket 20 is lifted to the top after the guide sleeve 33 is replaced, at the moment, a first servo motor 11 drives a reducer 12 to rotate, a gear 13 which slows down the rotating speed through the reducer 12 is matched with a rack 2, so that a cross beam 10 is driven to move to the position above a gun drill 6 to be replaced, a lead screw 15 is driven to rotate through a second servo motor 14, a mechanical arm rod 17 is adjusted to the position of the gun drill 6, a gun drill bearing 9 and a tool shank 5 are grabbed through a finger cylinder 18, the gun drill 6 to be replaced is taken out to a placing rack 4 of a set tool shank, and the required gun drill 6 and the gun drill bearing 9 are placed in a groove, the rear gland cylinder 30 is placed to drive the bearing gland 29 to lock the gun drill bearing 9, the rear main shaft 38 is locked to advance, the tool shank 5 enters the main shaft 38, the tool striking cylinder in the rear main shaft 38 is started when the tool shank 5 enters, the tool bit is tensioned, automatic tool locking can be completed, and the shaft bracket 20 descends to the working position while locking is achieved.

Although embodiments of the present invention have been shown and described, it is intended that the present invention should not be limited thereto, that the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples, and that modifications, substitutions, variations or the like, which are not inventive and may be made by those skilled in the art without departing from the principle and spirit of the present invention and without departing from the scope of the claims.