CN219581719U - Inclined hole drilling mechanism of numerical control drilling machine - Google Patents

Abstract

The utility model relates to an inclined hole drilling mechanism of a numerical control drilling machine, which comprises a fixed frame fixedly arranged on a machine base, wherein a sliding seat is arranged on the fixed frame in a sliding manner, a fixed plate is arranged on the sliding seat, a rotating seat is rotatably arranged on the fixed seat, a mounting seat is arranged on the rotating seat in a sliding manner, a drilling assembly for drilling a workpiece is arranged on the mounting seat, a rotating assembly for driving the rotating seat to rotate so as to change the drilling angle of the drilling assembly is arranged on the fixed seat, and a lifting assembly for driving the mounting seat to slide relative to the rotating seat so as to lift the drilling assembly relative to a workbench is arranged on the rotating seat. The utility model has the advantages of performing inclined hole processing on the workpiece, ensuring the drilling precision of the workpiece and improving the drilling efficiency.

Description

Inclined hole drilling mechanism of numerical control drilling machine

Technical Field

The utility model relates to the technical field of drilling, in particular to an inclined hole drilling mechanism of a numerical control drilling machine.

Background

The numerical control drilling machine is mechanical equipment for carrying out drilling, reaming, chamfering and other processing operations on a workpiece. The numerical control drilling machine is mainly applied to industries such as automobiles, molds, shipbuilding, aerospace, engineering machinery and the like, and is particularly suitable for workpieces of hardware parts needing to be subjected to porous processing.

In the related art, the numerical control drilling machine mainly comprises a machine base and a workbench arranged on the machine base, a clamping mechanism for clamping a workpiece is arranged on the workbench, a fixing seat is arranged on the workbench, a lifting seat is arranged on the fixing seat in a lifting manner, the lifting seat is arranged above the workbench, and a drill bit is arranged on one side of the lifting seat facing the workbench. When drilling, the workpiece is placed on the workbench, and is clamped by the clamping mechanism, so that the workpiece is not easy to shift during drilling, and at the moment, the lifting seat is driven to vertically lift relative to the workbench, and the drill bit is driven to rotate, so that the drill bit drills the workpiece.

However, the numerical control drilling machine in the related art can only drill the workpiece in the horizontal or vertical direction, is difficult to drill the inclined hole on the workpiece, cannot meet the inclined hole processing requirement of the workpiece, can only drill the inclined hole on the workpiece manually, and is time-consuming and labor-consuming, and the drilling efficiency and the drilling precision are low.

Disclosure of Invention

In order to improve the phenomenon that a numerical control drilling machine in the related art can only drill a workpiece in the horizontal or vertical direction, cannot meet the requirements of machining inclined holes of the workpiece, can only drill the inclined holes of the workpiece manually, and is time-consuming and labor-consuming, and the drilling efficiency and the drilling precision are affected. The utility model provides an inclined hole drilling mechanism of a numerical control drilling machine.

The utility model provides an inclined hole drilling mechanism of a numerical control drilling machine, which adopts the following technical scheme:

the utility model provides a numerical control drilling machine's inclined hole drilling mechanism, includes the fixed mount that sets up on the frame, it is provided with the seat of sliding to slide on the mount, be provided with the fixed plate on the seat of sliding, it is provided with the rotation seat to rotate on the fixing base, it is provided with the mount pad to slide on the rotation seat, be provided with the drilling subassembly that is used for drilling the work piece on the mount pad, be provided with on the fixing base and be used for driving the rotation seat and rotate to make the drilling subassembly's drilling angle change's rotation subassembly, be provided with on the rotation seat and be used for driving the relative seat of rotating of mount pad and slide, with the lifting unit that makes the drilling subassembly relative workstation go up and down.

Through adopting above-mentioned technical scheme, when drilling, through rotating the subassembly drive rotation seat and rotate, make the mount pad rotate to the drilling angle of the drilling subassembly on the messenger mount pad changes, and the drilling subassembly can drill the inclined hole to the work piece promptly, and the relative seat that rotates of drive mount pad through lifting unit slides this moment, makes the drilling subassembly lift relative workstation, and the drilling subassembly can drill the work piece promptly, thereby satisfies the inclined hole processing demand of work piece. Compared with the numerical control drilling machine in the related art, the drilling machine drives the rotating seat to rotate through the rotating assembly, drives the mounting seat to rotate, and enables the included angle between the drilling assembly and the workpiece to be an acute angle or an obtuse angle, so that the drilling angle of the drilling assembly is adjusted, namely the drilling assembly can drill an inclined hole on the workpiece, and at the moment, the lifting assembly drives the mounting seat to slide relative to the rotating seat, so that the drilling assembly can lift relative to the workbench, the drilling assembly can be abutted to the surface of the workpiece and drill the inclined hole on the workpiece, the processing requirement of drilling the inclined hole on the workpiece is met, manual drilling is not needed, and the processing precision of the workpiece and the drilling efficiency of the workpiece are ensured.

Preferably, the drilling assembly comprises a sleeve fixedly arranged on the mounting seat, a vertical rod rotationally arranged in the sleeve, a drill bit seat fixedly arranged at the end part of the sleeve, a drill bit rotationally arranged on the drill bit seat and a drilling motor for driving the sleeve to rotate, wherein the mounting seat is provided with a mounting groove, the mounting groove penetrates through the mounting seat, the sleeve is arranged along the length direction of the mounting groove, one end of the sleeve is fixedly arranged in the mounting groove, the other end of the sleeve extends out of the mounting seat, the vertical rod is arranged along the length direction of the sleeve, the drill bit seat is fixedly arranged at one end of the sleeve extending out of the mounting seat, the drill bit is fixedly arranged at one side of the mounting seat deviating from the sleeve, the vertical rod is fixedly connected with the drill bit, and the drilling motor is fixedly arranged on the mounting seat and fixedly connected with the vertical rod through an output shaft of the drilling motor.

Through adopting above-mentioned technical scheme, when drilling, through drilling motor drive montant rotation, drive the drill bit seat and take place to rotate, make the drill bit take place to rotate to make the drill bit can steadily drill the work piece, guaranteed the drilling precision of work piece.

Preferably, the rotating assembly comprises a rotating shaft arranged in the fixing seat, a worm wheel sleeved on the rotating shaft, a worm gear engaged with the worm gear and a rotating motor for driving the worm gear to rotate, wherein the fixing seat is internally provided with a containing groove, the rotating shaft is arranged along the length direction of the containing groove, one end of the rotating shaft is rotationally connected with the inner wall of the containing groove, the other end of the rotating shaft extends out of the fixing seat and is fixedly connected with a rotating seat, the worm wheel is fixedly sleeved on the rotating shaft, the worm gear is arranged along the length direction perpendicular to the rotating shaft, and the rotating motor is fixedly arranged in the containing groove and is fixedly connected with the worm shaft.

Through adopting above-mentioned technical scheme, during drilling, through rotating motor drive worm rotation, drive the worm wheel and rotate to make the pivot take place to rotate, drive and rotate seat relative fixing base and rotate, make the mount pad take place to rotate, make the drill bit that sets up on the mount pad take place to rotate, and then realize the regulation to the drilling angle of drill bit, and utilize the auto-lock characteristic between worm wheel and the worm, lock the pivot, make the drilling angle of drill bit keep locking, thereby make the drill bit can drill out the inclined hole to the work piece steadily.

Preferably, the lifting assembly comprises a sliding groove arranged on the rotating seat, a lifting screw arranged in the sliding groove in a rotating manner, a sliding block connected with the lifting screw in a threaded manner and a power piece for driving the lifting screw to rotate, the sliding groove is arranged in the radial direction of the rotating seat, the lifting screw is arranged in the length direction of the sliding groove, the sliding block is in sliding fit with the sliding groove, and one side, deviating from the sliding groove, of the sliding block is fixedly connected with the mounting seat.

Through adopting above-mentioned technical scheme, after the drilling angle of drill bit is adjusted, take place to rotate through the drive lift lead screw, drive the slider and slide along the length direction of spout, make the mount pad rotate the seat relatively and remove along the length direction who rotates the seat, make the drill bit lift relatively to make the drill bit can the butt in the surface of work piece and carry out drilling operation to the work piece.

Preferably, the power piece comprises a lifting motor fixed on the rotating seat, an output shaft of the lifting motor is connected with a reduction gearbox, and an output shaft of the reduction gearbox is fixedly connected with a sliding screw rod.

Through adopting above-mentioned technical scheme, during drilling, the reducing gear box can reduce the output rotational speed of elevator motor, makes elevator lead screw can rotate with comparatively slow and stable speed to make the mount pad slide along the length direction who rotates the seat with slow and stable speed, make the drill bit can comparatively stably bore into in the work piece, thereby avoided leading to the condition that the drill bit damaged because of boring into the work piece speed too fast.

Preferably, a collection assembly for collecting waste cuttings generated by drilling of the drill bit is arranged on the casing.

Through adopting above-mentioned technical scheme, collect the setting of subassembly and collect the sweeps that the drill bit drilling produced, make the sweeps that the drilling produced can not lead to the fact the influence to the drilling of boring the drill bit, guaranteed the precision of drilling, and need not the manual work to clear up the sweeps.

Preferably, the collection subassembly is including the cover that overlaps outside the sleeve pipe, set up the collection cover on the sleeve pipe, be used for with collect the exhaust tube of cover intercommunication and be used for providing the elastic component of elasticity to the sleeve pipe, the sleeve pipe relatively can slide towards being close to or keeping away from the direction of mount pad, collect the cover fixed set up in the sleeve one side that deviates from the mount pad, collect one side that the cover deviates from the sleeve and seted up the opening, the drill bit is located and collects the cover, just the bottom of drill bit stretches out from the opening of collecting the cover, the extraction opening has been seted up to the lateral wall of collecting the cover, the exhaust tube communicates with the extraction opening, just the one end intercommunication that the extraction opening was kept away from to the exhaust tube has the aspiration pump.

Through adopting above-mentioned technical scheme, during the drilling, collect the cover and support in the surface of work piece at the effect of elastic component to make the drill bit carry out drilling operation to the work piece in collecting the cover, through the aspiration pump operation, thereby take out the sweeps that the drilling produced through the exhaust tube and collect the cover, and then realize the collection to the sweeps that the drilling produced.

Preferably, the elastic piece comprises a spring wound outside the sleeve, one end of the spring is fixedly connected with the mounting seat, and the other end of the spring is fixedly connected with the sliding sleeve.

Through adopting above-mentioned technical scheme, the spring can continuously provide elasticity to the sliding sleeve to make the sliding sleeve can continuously butt in the surface of work piece when drilling, and then make and collect the sweeps that the cover produced can collect drilling steadily.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. when the drilling machine is used for drilling, the rotating seat is driven to rotate by the rotating assembly to drive the mounting seat to rotate, so that the included angle between the drilling assembly and the workpiece is an acute angle or an obtuse angle, and the drilling angle of the drilling assembly is adjusted, namely the drilling assembly can drill an inclined hole on the workpiece, and at the moment, the lifting assembly drives the mounting seat to slide relative to the rotating seat so that the drilling assembly can lift relative to the workbench, so that the drilling assembly can be abutted to the surface of the workpiece and drill the inclined hole on the workpiece, the processing requirement of drilling the inclined hole on the workpiece is met, manual drilling is not needed, and the processing precision of the workpiece and the drilling efficiency of the workpiece are ensured;

2. when the drill is used for drilling, the worm is driven to rotate by the rotating motor, the worm wheel is driven to rotate, the rotating shaft is driven to rotate, the rotating seat is driven to rotate relative to the fixed seat, the drilling angle of the drill bit is changed, and the drill bit can drill an inclined hole on a workpiece. Meanwhile, the rotating shaft is locked by utilizing the self-locking characteristic of the worm wheel and the worm, so that the drilling angle of the drill bit is kept stable, namely, the drill bit can stably drill the workpiece, and the drilling precision of the workpiece is ensured.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic diagram showing the matching relationship between the fixing frame and the sliding seat;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic diagram showing the mating relationship between the fixed base and the rotatable base;

fig. 5 is an enlarged view of a portion B in fig. 4.

Reference numerals illustrate: 10. a base; 11. a work table; 12. a fixing frame; 20. a sliding seat; 21. a groove; 22. a sliding screw rod; 23. a screw seat; 24. a slip motor; 30. a fixing seat; 31. a rotating seat; 40. a mounting base; 41. a sleeve; 42. a vertical rod; 43. a drill bit seat; 44. a drill bit; 45. a drilling motor; 46. a sliding sleeve; 47. a collection cover; 48. an exhaust pipe; 49. a spring; 50. a rotating shaft; 51. a worm wheel; 52. a worm; 53. a rotating motor; 54. a receiving groove; 55. a chute; 56. lifting the screw rod; 57. a slide block; 58. a lifting motor; 59. a reduction gearbox.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-5.

Referring to fig. 1 and 2, the inclined hole drilling mechanism of the numerical control drilling machine comprises a fixing frame 12 fixedly arranged on a machine base 10 and a sliding seat 20 arranged on the fixing frame 12 in a sliding manner, wherein the fixing frame 12 spans across the machine base 10, the sliding seat 20 is arranged on the fixing frame 12 in a sliding manner, and the sliding seat 20 is positioned above a workbench 11. In this embodiment, the machine base 10 and the working table 11 are both rectangular, the working table 11 is used for carrying a workpiece to be drilled, and the working table 11 can slide along the length direction of the machine base 10 relative to the machine base 10.

The fixed frame 12 is provided with a sliding component for driving the sliding seat 20 to slide along the width direction of the machine base 10 relative to the fixed frame 12. Specifically, the sliding component includes a groove 21 formed on the fixing frame 12, a sliding screw 22 rotatably disposed in the groove 21, a threaded seat 23 screwed on the sliding screw 22, and a sliding motor 24 for driving the sliding screw 22 to rotate. The groove 21 is disposed along the length direction of the fixing frame 12 (i.e. the width direction of the stand 10), the sliding screw 22 is disposed along the length direction of the groove 21, and two ends of the sliding screw 22 are rotatably connected to two ends of the groove 21. The screw seat 23 is slidably engaged with the groove 21, and a side of the screw seat 23 facing away from the groove 21 is fixedly connected to the sliding seat 20. The sliding motor 24 is fixedly installed on the side wall of the fixing frame 12, and an output shaft of the sliding motor 24 is fixedly connected to the sliding screw 22.

Referring to fig. 2 and 3, the bottom side of the sliding seat 20 is provided with a fixing seat 30, the fixing seat 30 is in a cuboid shape, a rotating seat 31 is rotatably arranged on the fixing seat 30, the rotating seat 31 is in a cuboid shape, a mounting seat 40 is slidably arranged on the rotating seat 31, and the mounting seat 40 can slide along the length direction of the rotating seat 31. The mount 40 is provided with a drilling assembly for drilling a workpiece.

Specifically, the drilling assembly includes fixed sleeve 41 that sets up on mount pad 40, rotate the montant 42 that sets up in sleeve 41, the drill bit mount 43 of fixed tip that sets up in sleeve 41, rotate the drill bit 44 that sets up on drill bit mount 43 and be used for driving sleeve 41 pivoted drilling motor 45, the mounting groove has been seted up on mount pad 40, the vertical setting in mount pad 40 of mounting groove, and the mounting groove runs through mount pad 40, sleeve 41 sets up along the length direction of mounting groove, and the one end of sleeve 41 is fixed to be set up in the mounting groove, outside the mount pad 40 is stretched out to the other end of sleeve 41, montant 42 sets up along the length direction of sleeve 41, drill bit mount 43 is fixed to be set up in the one end that sleeve 41 stretches out outside mount pad 40, drill bit 44 is fixed to be set up in one side that mount pad 40 deviates from sleeve 41, and montant 42 fixed connection is in drill bit 44, drilling motor 45 is fixed to be set up on mount pad 40, and the output shaft fixed connection of drilling motor 45 is in montant 42.

The casing 41 is further provided with a collection assembly for collecting the cuttings produced by the drilling of the drill bit 44.

Specifically, the collecting assembly includes a sliding sleeve 46 sleeved outside the sleeve 41, a collecting cover 47 disposed on the sliding sleeve 46, an exhaust tube 48 for communicating with the collecting cover 47, and an elastic member for providing elasticity to the sliding sleeve 46. Wherein, sliding sleeve 46 can slide towards being close to or keep away from the direction of mount pad 40 relative sleeve 41, collect cover 47 fixed mounting in sliding sleeve 46 one side that deviates from mount pad 40, collect cover 47 and be inside hollow square form setting, and collect cover 47 and deviate from one side of sliding sleeve 46 and seted up the opening, drill bit 44 holding is in collecting cover 47, and the bottom of drill bit 44 stretches out from collecting cover 47 outside the opening of collecting cover 47. The side wall of the collecting cover 47 is provided with an air extracting opening, an air extracting pipe 48 is communicated with the air extracting opening, and one end of the air extracting pipe 48 away from the air extracting opening is communicated with an air extracting pump.

The elastic member includes a spring 49 wound around the casing 41, the spring 49 is disposed along the length direction of the casing 41, one end of the spring 49 is fixedly connected to the mounting seat 40, and the other end of the spring 49 is fixedly connected to the sliding sleeve 46.

Referring to fig. 4 and 5, a rotation assembly for driving the rotation seat 31 to rotate so as to change a drilling angle of the drilling assembly is provided on the fixing seat 30. Specifically, the rotating assembly includes a rotating shaft 50 rotatably disposed in the fixing base 30, a worm wheel 51 sleeved on the rotating shaft 50, a worm 52 engaged with the worm wheel 51, and a rotating motor 53 for driving the worm 52 to rotate. Wherein, the holding groove 54 has been seted up in the fixing base 30, the holding chamber sets up along the width direction of fixing base 30, the pivot 50 sets up along the length direction of holding groove 54, and the one end rotation of pivot 50 is connected in the inner wall of holding groove 54, the other end of pivot 50 stretches out the fixing base 30 after fixed connection in rotating seat 31 through holding groove 54, the one end of rotating seat 31 is kept away from to pivot 50 is located to the fixed cover of worm wheel 51, worm 52 sets up along the length direction of perpendicular to pivot 50, and worm 52 rotates and connects in holding groove 54, rotating motor 53 fixed mounting is in the holding intracavity, and the output shaft fixed connection of rotating motor 53 is in worm 52. The worm 52 is driven to rotate by the rotating motor 53, the worm wheel 51 is driven to rotate, the rotating shaft 50 is driven to rotate, the rotating seat 31 is driven to rotate, and the drill bit 44 on the rotating seat 31 can be inclined relative to a workpiece, namely, the drilling angle of the drill bit 44 is adjusted. Meanwhile, the self-locking characteristic between the worm wheel 51 and the worm 52 is utilized, so that the drilling angle of the adjusted drill bit 44 is kept stable, and the drill bit 44 can stably drill an inclined hole on a workpiece.

Referring to fig. 4 and 5, a lifting assembly for driving the mounting seat 40 to slide in a radial direction of the rotating seat 31 to lift the drilling assembly relative to the table 11 is provided on the rotating seat 31.

Specifically, the lifting assembly includes a sliding groove 55 formed on the rotating seat 31, a lifting screw rod rotatably arranged in the sliding groove 55, a sliding block 57 screwed on the lifting screw rod 56, and a power member for driving the lifting screw rod 56 to rotate. The sliding groove 55 is disposed along a radial direction of the rotating seat 31, the lifting screw 56 is disposed along a length direction of the sliding groove 55, and two ends of the lifting screw 56 are rotatably connected to two ends of the sliding groove 55. The sliding block 57 is slidably engaged with the sliding slot 55, and a side of the sliding block 57 facing away from the sliding slot 55 is fixedly connected to the mounting seat 40. The power piece includes the fixed lift motor 58 that sets up on rotating seat 31, and the output shaft fixedly connected with reducing gear box 59 of lift motor 58, the output shaft fixedly connected with of reducing gear box 59 is in lift lead screw 56. After the drilling angle of the drill bit 44 is adjusted, the lifting motor 58 drives the lifting screw rod 56 to rotate in a decelerating manner, so that the lifting screw rod 56 can rotate at a slower and stable speed, the sliding block 57 is driven to slide along the length direction of the sliding groove 55, the mounting seat 40 is driven to move along the length direction of the rotating seat 31, and the drill bit 44 is driven to vertically lift relative to the workbench 11, so that the drill bit 44 can drill into a workpiece until the designed hole depth is reached.

The implementation principle of the utility model is as follows: when drilling, firstly, a workpiece to be drilled is placed on the workbench 11, the sliding motor 24 drives the sliding screw rod 22 to rotate, and the threaded seat 23 is driven to slide along the length direction of the groove 21, so that the sliding seat 20 slides to the position right above the workpiece along the width direction of the machine base 10 relative to the fixed frame 12. The worm 52 is driven to rotate by the rotating motor 53, the worm wheel 51 is driven to rotate, the rotating shaft 50 is driven to rotate, the rotating seat 31 is driven to rotate relative to the fixed seat 30, and the drilling angle of the drill bit 44 is adjusted, so that the drill bit 44 can drill an inclined hole on a workpiece, and the inclined hole processing requirement of the workpiece is met. The lifting screw rod 56 is driven to rotate by the lifting motor 58, the sliding block 57 is driven to slide along the length direction of the sliding groove 55, the mounting seat 40 moves along the length direction of the rotating seat 31 relative to the rotating seat 31, the drill bit 44 descends relative to the workbench 11, and the drill bit 44 is abutted against the surface of a workpiece. At this time, the vertical rod 42 is driven to rotate by the drilling motor 45 to drive the drill bit 44 to rotate, so that the drill bit 44 can drill into the workpiece until the designed hole depth is reached, and further, the requirements of different drilling depths of the workpiece are met.

Meanwhile, when the drill bit 44 is opposite to the workbench 11 and is abutted against the drill bit 44, the spring 49 continuously provides elasticity for the sleeve 41, so that the collecting cover 47 is abutted against the surface of a workpiece and the drill bit 44 is accommodated in the collecting cover 47, waste scraps generated in the drilling process are collected, the waste scraps in the collecting cover 47 are pumped away from the collecting cover 47 through the exhaust pipe, when the drill bit 44 is drilled into the workpiece, the collecting cover 47 is driven to move towards a direction close to the mounting seat 40, and the spring 49 is in a compressed state, so that the collecting cover 47 can be always abutted against the surface of the workpiece and waste scraps generated in the drilling process of the drill bit 44 are collected.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. The utility model provides a inclined hole drilling mechanism of numerical control drilling machine which characterized in that: including fixed mount (12) that set up on frame (10), it is provided with seat (20) to slide on mount (12), be provided with fixing base (30) on sliding seat (20), it is provided with rotation seat (31) to rotate on fixing base (30), it is provided with mount pad (40) to slide on rotation seat (31), be provided with on mount pad (40) and be used for carrying out the drilling subassembly of drilling to the work piece, be provided with on fixing base (30) and be used for driving rotation seat (31) and rotate to make the drilling subassembly's drilling angle change rotate the subassembly, be provided with on rotation seat (31) and be used for driving rotation seat (31) relatively and slide, with the lifting unit who makes drilling subassembly relative workstation (11) go up and down.

2. The inclined hole drilling mechanism of the numerical control drilling machine according to claim 1, wherein: drilling subassembly is including fixed sleeve pipe (41) that sets up on mount pad (40), rotate montant (42) that set up in sleeve pipe (41), fixed drill bit seat (43) that set up in the tip of sleeve pipe (41), rotate drill bit (44) and be used for driving sleeve pipe (41) pivoted drilling motor (45) that set up on drill bit seat (43), set up the mounting groove on mount pad (40), the mounting groove runs through mount pad (40), sleeve pipe (41) set up along the length direction of mounting groove, and the one end of sleeve pipe (41) is fixed to be set up in the mounting groove, outside the other end of sleeve pipe (41) stretches out mount pad (40), montant (42) set up along the length direction of sleeve pipe (41), drill bit seat (43) are fixed to be set up in the one end outside sleeve pipe (41) stretches out mount pad (40), drill bit (44) are fixed to be set up in one side of mount pad (40) deviating from sleeve pipe (41), and montant (42) are fixed to be connected with drill bit (44), drilling motor (45) are fixed to be set up on mount pad (40), and the output shaft of drilling motor (45) is fixed to be connected with drill bit (42).

3. The inclined hole drilling mechanism of the numerical control drilling machine according to claim 1, wherein: the rotating assembly comprises a rotating shaft (50) arranged in a fixed seat (30), a worm wheel (51) sleeved on the rotating shaft (50), a worm (52) meshed with the worm wheel (51) and a rotating motor (53) used for driving the worm (52) to rotate, wherein an accommodating groove (54) is formed in the fixed seat (30), the rotating shaft (50) is arranged along the length direction of the accommodating groove (54), one end of the rotating shaft (50) is rotationally connected to the inner wall of the accommodating groove (54), the other end of the rotating shaft (50) extends out of the fixed seat (30) and is fixedly connected to the rotating seat (31), the worm wheel (51) is fixedly sleeved on the rotating shaft (50), the worm (52) is arranged along the length direction perpendicular to the rotating shaft (50), and an output shaft of the rotating motor (53) is fixedly connected to the worm (52).

4. The inclined hole drilling mechanism of the numerical control drilling machine according to claim 1, wherein: the lifting assembly comprises a sliding groove (55) formed in the rotating seat (31), a lifting screw (56) arranged in the sliding groove (55) in a rotating mode, a sliding block (57) in threaded connection with the lifting screw (56) and a power piece for driving the lifting screw (56) to rotate, the sliding groove (55) is formed in the radial direction of the rotating seat (31), the lifting screw (56) is formed in the length direction of the sliding groove (55), the sliding block (57) is in sliding fit with the sliding groove (55), and one side, deviating from the sliding groove (55), of the sliding block (57) is fixedly connected with the mounting seat (40).

5. The inclined hole drilling mechanism of the numerical control drilling machine according to claim 4, wherein: the power piece comprises a lifting motor (58) fixed on the rotating seat (31), an output shaft of the lifting motor (58) is connected with a reduction gearbox (59), and an output shaft of the reduction gearbox (59) is fixedly connected with the sliding screw rod (22).

6. The inclined hole drilling mechanism of the numerical control drilling machine according to claim 2, wherein: the casing (41) is provided with a collection assembly for collecting waste cuttings produced by drilling of the drill bit (44).

7. The inclined hole drilling mechanism of the numerical control drilling machine according to claim 6, wherein: the collecting assembly comprises a sliding sleeve (46) sleeved outside the sleeve (41), a collecting cover (47) arranged on the sliding sleeve (46), an exhaust pipe (48) communicated with the collecting cover (47) and an elastic piece for providing elasticity for the sliding sleeve (46), the sliding sleeve (46) can slide towards a direction close to or far away from the mounting seat (40) relative to the sleeve (41), the collecting cover (47) is fixedly arranged on one side, deviating from the mounting seat (40), of the sliding sleeve (46), an opening is formed in one side, deviating from the sliding sleeve (46), of the collecting cover (47), the drill bit (44) is located in the collecting cover (47), the bottom end of the drill bit (44) extends out from the opening of the collecting cover (47), an exhaust opening is formed in the side wall of the collecting cover (47), the exhaust pipe (48) is communicated with the opening, and one end, distant from the opening, of the exhaust pipe (48) is communicated with an exhaust pump.

8. The inclined hole drilling mechanism of the numerical control drilling machine according to claim 7, wherein: the elastic piece comprises a spring (49) wound outside the sleeve (41), one end of the spring (49) is fixedly connected with the mounting seat (40), and the other end of the spring (49) is fixedly connected with the sliding sleeve (46).