CN218746109U

CN218746109U - Environment-friendly water-cooling numerical control drilling machine

Info

Publication number: CN218746109U
Application number: CN202221954359.9U
Authority: CN
Inventors: 丁茂林
Original assignee: Individual
Current assignee: Beijing Zhonghechuangye Science & Technology Development Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2023-03-28
Anticipated expiration: 2032-07-27

Abstract

The utility model provides an environmental protection water-cooling numerically-controlled drilling machine belongs to drilling machine technical field. It has solved the poor and complicated problem of structure of current drilling machine adaptability. This drilling machine has many different kinds of cutters and can realize drilling to the work piece, the tapping, operations such as chamfer, can adapt to the various processing demands of work piece, adaptability is better, and the cutter of this drilling machine is that non-rotating is better at the in-process stability of falling the sword, machining precision can obtain guaranteeing, bearing plate inside on the workstation of this drilling machine has water passageway, the mounting groove has still been seted up on the bearing plate, the tank bottom department of mounting groove sets up and crosses the water hole of crossing in the water passageway intercommunication, plug design makes the equipment all very convenient with the dismantlement between adaptation piece and the mounting groove, and will cross the water passageway and directly hide inside the bearing plate, no pipeline exposes outside, make the structure of whole drilling machine obtain optimizing and simplifying.

Description

Environment-friendly water-cooling numerical control drilling machine

Technical Field

The utility model relates to a belong to drilling machine technical field, relate to a drilling machine, in particular to environmental protection water-cooling numerically-controlled drilling machine.

Background

The drilling machine is that the more extensive machine of application is usually used for machine tooling such as work piece drilling tapping in the machining factory, and conventional drilling machine all is including drill bit and drive drill bit pivoted servo motor, fixes drill bit and servo motor on the layer board that can remove, attacks the brill through reciprocating of layer board to drive the cutter.

Because the cutter can produce a large amount of heat energy and fly bits etc. with the hard contact of work piece when attacking the brill, need in time cool down and remove the bits in order to guarantee that the cutter can not excessively wear and tear the damage to its contact position, conventional cooling method is through the mode that washes naturally, attacks to water spray or coolant liquid on boring the position through the shower nozzle always and takes away and fly bits and heat, and such mode is simple and the effect is fine. But the shower nozzle goes out water and need connect the water pipe, and current drilling machine all is more random to the position planning of water pipe always, exposes at will on the workstation and makes whole workstation look disorderly, because numerous very easily by workman's erroneous judgement of line pipeline when the maintenance moreover, causes unnecessary troublesome.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an environmental protection water-cooling numerically-controlled drilling machine. The drilling machine solves the technical problems that an existing drilling machine is poor in adaptability and complex in structure.

In order to realize the purpose, the utility model adopts the technical scheme that:

the utility model provides a drilling machine environmental protection water-cooling numerically controlled drilling machine, includes the workstation, be provided with the mounting panel that can control quadriversal removal from top to bottom on the bearing plate, it has several cutters to arrange side by side on the mounting panel, the below that lies in the cutter on the bearing plate is provided with can circumferential direction's anchor clamps, the inside water channel that is equipped with of bearing plate, the import of water channel lies in one of them side of bearing plate, the mounting groove has been seted up to the one side that lies in anchor clamps on the upper surface of bearing plate, the water hole of crossing with water channel intercommunication is seted up to the tank bottom of mounting groove, the mounting groove interpolation is connected with the connecting block with the mounting groove adaptation, the bottom of connecting block is equipped with the grafting portion that inserts in the water hole and with crossing water hole circumferential seal, the central point department of the bottom of grafting portion sets up the through hole that runs through whole connecting block from top to bottom, the last drill way department of through hole is connected with out the water takeover, and the tip of takeover is provided with the nozzle.

This drilling machine has many different kinds of cutters and can realize operations such as drilling, tapping, chamfer to the work piece, can adapt to the various processing demands of work piece, and adaptability is better to the cutter of this drilling machine is that non-pivoted is better at the in-process stability of falling the sword, and the machining precision can obtain guaranteeing. This drilling machine drives the work piece rotation through the rotation of anchor clamps and comes the relative cutter rotation processing, and the cutter precision of falling is higher like this, and stability is better. The inside water channel that has of bearing plate on this workstation of drilling machine, the import of water channel is located the lateral part of bearing plate, the mounting groove has still been seted up on the bearing plate, the tank bottom department of mounting groove be provided with the water hole of crossing in the water channel intercommunication, water takeover and nozzle have on the connecting block, the connecting block plug is connected in the mounting groove and rely on its self gravity to lean on the tank bottom at the mounting groove, and grafting portion on it is the socket joint and goes into the through hole and cross the water hole intercommunication in making it in the water hole, so long as cross water channel in-house water, the shower nozzle just can be to the work piece water spray in the processing, plug design through the adaptation piece makes equipment and dismantlement all very convenient, and will cross the water channel and directly hide inside the bearing plate, no pipeline exposes outside, make the structure of whole drilling machine obtain optimizing and simplifying.

The connecting block relies on its self weight to support and forms certain leakproofness at the tank bottom of mounting groove after inlaying in the mounting groove for the fixed stability of connecting block and bearing plate obtains promoting, grafting portion and water hole circumference are sealed in addition, and such double seal effect, stability after further improvement connecting block and bearing plate are fixed.

In foretell environmental protection water-cooling numerically-controlled drilling machine, be provided with perpendicular lead screw subassembly and horizontal lead screw subassembly on the bearing plate, perpendicular lead screw subassembly has movable plate one that can reciprocate, horizontal lead screw subassembly is fixed on movable plate one and has movable plate two that can remove about on the horizontal lead screw subassembly, the mounting panel is fixed on movable plate two.

The cutter of this design drives through two sets of lead screw subassemblies and moves about from top to bottom and be used for driving vertical direction up-and-down motion for perpendicular lead screw subassembly respectively, horizontal lead screw subassembly then drives horizontal motion, whole such as horizontal lead screw subassembly and cutter are fixed on perpendicular lead screw subassembly, drive whole the moving in vertical direction by perpendicular lead screw subassembly, and horizontal lead screw subassembly then moves about can driving the cutter, design simple structure like this, can realize the processing switching between a plurality of cutters, adapt to various processing demands, adaptability is fabulous.

In an above-mentioned environmental protection water-cooling numerically-controlled drilling machine, perpendicular lead screw subassembly includes backplate one, the axial is fixed with can pivoted lead screw one and lead screw one vertical setting on the backplate one, be fixed with on the backplate and drive lead screw one pivoted motor one, threaded connection has movable block one on the lead screw one, the both sides that lie in lead screw one on the backplate are all vertical to be provided with linear guide one, the linear guide has gliding slider one on one, the both ends that the movable plate one was fixed on the slider one and was moved the board one are fixed with slider one respectively.

The vertical screw rod assembly is provided with a first screw rod and a first sliding block which can drive the horizontal screw rod assembly to move up and down, linear guide rails are further arranged on two sides of the first screw rod, the first sliding block on the linear guide rails is also fixed with the first movable plate, the stability of the horizontal screw rod assembly when the horizontal screw rod assembly moves up and down can be effectively improved, and the integral bearing effect of the first screw rod is also improved.

In the above-mentioned environmental protection water-cooling numerically-controlled drilling machine, the horizontal screw subassembly includes backplate two, the back of backplate two is fixed on the movable plate one and the backplate two goes up circumference and is fixed with can the pivoted lead screw two and the setting of lead screw two level, threaded connection has movable block two on the lead screw two, the both sides that lie in lead screw two on the backplate two all are provided with the linear guide two parallel with lead screw two, the linear guide has the slidable slider two on the second, the movable plate two is fixed on the slider two and the both ends of movable plate two.

The two sides of the second screw rod on the horizontal screw rod assembly are provided with the second linear guide rails, the moving stability in the horizontal direction can be improved, the quality of a plurality of cutters is large, and the second linear guide rails on the two sides are used for clamping and supporting the second movable plate to enable the connection strength of the second movable plate to be better.

In the above-mentioned environmental protection water-cooling numerically-controlled drilling machine, the number of cutters at least includes drill bit sword, tapping head sword and chamfer sword.

The cutter at least comprises a drill bit, a tapping head and a chamfering tool, and the combination of a plurality of cutters can adapt to various processing requirements, so that the cutter has good adaptability.

In foretell water-cooling numerically-controlled drilling machine of environmental protection, the mounting groove is square along the cross-section of horizontal direction, the appearance of connecting block is the square shape, four sides of connecting block respectively paste with one side cell wall of mounting groove mutually and lean on, the upper end of connecting block stretches out the mounting groove and exposes outside.

The mounting groove of square profile and the massive connecting block of square, the unable circumferential direction of connecting block is made in cooperation of circumference between them, makes it can not receive factors such as rivers to take place to rotate, and stability is better, and the side of connecting block pastes with the cell wall of mounting groove in addition and leans on together, and the leakproofness is better like this, and connection stability is better. The upper end of the connecting block of this design exposes outside the mounting groove, makes things convenient for like this that we are manual to carry out the plug, and assembly and disassembly is convenient.

In the above-mentioned environmental protection water-cooling numerically-controlled drilling machine, the cell wall that the mounting groove is close to tank bottom position department all inwards slopes and forms the inclined plane, have on the tip of connecting block with inclined plane complex spigot surface.

Four cell walls of mounting groove all have the inclined plane of leanin and form the structure of similar back taper platform, have the spigot surface on the connecting block, the spigot surface cooperation on four sides and foretell back taper platform cooperation can let between connecting block and the bearing plate cooperate inseparabler, and stability is higher.

In an above-mentioned environmental protection water-cooling numerically-controlled drilling machine, the annular has been seted up on the outer peripheral face of grafting portion, the embedded sealing washer that is equipped with of annular, grafting portion passes through the sealing washer and the pore wall circumference of water hole is sealed.

The outer peripheral surface of the insertion part is also embedded with a sealing ring, and the sealing ring can ensure that the sealing property between the insertion part and the hole wall of the water through hole is better.

The utility model has the advantages that:

1. this drilling machine has many different kinds of cutters and can realize operations such as drilling, tapping, chamfer to the work piece, can adapt to the various processing demands of work piece, and adaptability is better to the cutter of this drilling machine is that non-pivoted is better at the in-process stability of falling the sword, and the machining precision can obtain guaranteeing.

2. The bearing plate on the workstation of this drilling machine is inside to have water channel, has still seted up the mounting groove on the bearing plate, the tank bottom department of mounting groove set up with cross the water hole of crossing in the water channel intercommunication, the plug design makes the equipment all very convenient with the dismantlement between adaptation piece and the mounting groove, will cross the water channel in addition and directly hide inside the bearing plate, no pipeline exposes outside for the structure of whole drilling machine is optimized and is simplified.

Drawings

FIG. 1 is a partial sectional view of the structure of the present invention;

FIG. 2 is a partial structural view of the present invention;

FIG. 3 is a partial detail view of the present invention;

fig. 4 is a part view of the horizontal screw assembly of the present invention;

fig. 5 is a part component diagram of the present invention.

In the figure, 1, a workbench; 11. a bearing plate; 12. a damper block; 13. a water passage; 14. Mounting grooves; 15. water passing holes; 16. a bevel; 2. mounting a plate; 3. a cutter; 31. a slider; 4. a clamp; 41. a moving block; 42. a first motor; 5. a vertical screw assembly; 51. moving the first plate; 52. a first backboard; 53. a first screw rod; 54. moving a first block; 55. a first linear guide rail; 56. A first sliding block; 57. a first motor; 6. a horizontal screw assembly; 61. moving a second plate; 62. a second backboard; 63. a second screw rod; 64. a second moving block; 65. a second linear guide rail; 66. a second sliding block; 67. A second motor; 7. a third motor; 8. connecting blocks; 81. a plug-in part; 82. a through hole; 83. a water outlet connecting pipe; 84. a nozzle; 85. a guide surface; 9. and (5) sealing rings.

Detailed Description

As shown in fig. 1-5, the environment-friendly water-cooled numerically-controlled drilling machine comprises a workbench 1, a bearing plate 11 is arranged on the top of the workbench 1, a mounting plate 2 capable of moving in four directions, namely up, down, left and right, is arranged on the bearing plate 11, a plurality of cutters 3 are arranged on the mounting plate 2 side by side, and a clamp 4 capable of rotating in the circumferential direction is arranged on the bearing plate 11 and located below the cutters 3. The bearing plate 11 is provided with a motor III 7, a rotating shaft of the motor III 7 penetrates through the bearing plate 11 to be fixed with the clamp 4, and the clamp 4 is a three-jaw chuck or a manual three-jaw chuck. This drilling machine has many different kinds of cutter 3 can realize operations such as drilling, tapping, chamfer to the work piece, can adapt to the various processing demands of work piece, and adaptability is better to cutter 3 of this drilling machine is that non-rotating is better at the in-process stability of falling the sword, and the machining precision can obtain guaranteeing. This drilling machine drives the work piece rotation through the rotation of anchor clamps 4 and comes 3 rotatory processing of relative cutter, and cutter 3 precision of falling is higher like this, and stability is better. In an above-mentioned environmental protection water-cooling numerically-controlled drilling machine, be provided with vertical lead screw subassembly 5 and horizontal lead screw subassembly 6 on the bearing plate 11, vertical lead screw subassembly 5 has a movable plate 51 that can reciprocate, and horizontal lead screw subassembly 6 is fixed on movable plate 51 and has movable plate two 61 that can move about on the horizontal lead screw subassembly 6, and mounting panel 2 is fixed on movable plate two 61. Cutter 3 of this design drives through two sets of lead screw subassemblies and moves about from top to bottom and be used for driving vertical direction up-and-down motion for perpendicular lead screw subassembly 5 respectively, horizontal lead screw subassembly 6 then drives horizontal motion, whole such as horizontal lead screw subassembly 6 and cutter 3 are fixed on perpendicular lead screw subassembly 5, drive whole the moving in vertical direction by perpendicular lead screw subassembly 5, and horizontal lead screw subassembly 6 then moves about can driving cutter 3, design simple structure like this, can realize the processing switching between a plurality of cutters 3, adapt to various processing demands, adaptability is fabulous. The vertical screw rod assembly 5 comprises a first back plate 52, a first rotatable screw rod 53 is axially fixed on the first back plate 52, the first screw rod 53 is vertically arranged, a first motor 57 capable of driving the first screw rod 53 to rotate is fixed on the first back plate 52, a first movable block 54 is in threaded connection with the first screw rod 53, linear guide rails 55 are vertically arranged on the first back plate 52 and located on two sides of the first screw rod 53, a first slidable sliding block 56 is arranged on the linear guide rails 55, a first movable plate 51 is fixed on the first sliding block 56, and two ends of the first movable plate 51 are respectively fixed with the first sliding block 56. The vertical screw rod component 5 of the design is provided with a first screw rod 53 and a first sliding block 56 which can drive the horizontal screw rod component 6 to move up and down, two sides of the first screw rod 53 are also provided with a first linear guide rail 55, the first sliding block 56 on the first linear guide rail 55 is also fixed with a first movable plate 51, the stability of the horizontal screw rod component 6 during moving up and down can be effectively improved, and the whole bearing effect of the first screw rod 53 is also improved.

The horizontal screw rod assembly 6 comprises a second back plate 62, the back of the second back plate 62 is fixed on the first moving plate 51, a second rotatable screw rod 63 is fixed on the second back plate 62 in the circumferential direction, the second screw rod 63 is horizontally arranged, a second moving block 64 is connected to the second screw rod 63 in a threaded manner, two linear guide rails 65 parallel to the second screw rod 63 are arranged on the second back plate 62 and located on two sides of the second screw rod 63, a second sliding block 66 is arranged on the second linear guide rails 65, and the second moving plate 61 is fixed on the second sliding block 66 and two ends of the second moving plate 61. The two sides of the second screw rod 63 on the horizontal screw rod assembly 6 are provided with the second linear guide rails 65, so that the moving stability in the horizontal direction can be improved, the mass of a plurality of cutters 3 is large, and the second linear guide rails 65 on the two sides additionally support the second moving plate 61 to ensure that the connection strength is better. The plurality of cutters 3 at least comprise drill cutters, tapping cutters and chamfering cutters. The cutter 3 at least comprises a drill bit, a tapping head and a chamfering tool, and the combination of a plurality of cutters 3 can meet various processing requirements and has good adaptability. The water outlet pipe comprises a bearing plate 11, a water passing channel 13 is arranged inside the bearing plate 11, an inlet of the water passing channel 13 is located on one side face of the bearing plate 11, a mounting groove 14 is formed in one side, located on the upper surface of the bearing plate 11, of a clamp 4, a water passing hole 15 communicated with the water passing channel 13 is formed in the bottom of the mounting groove 14, a connecting block 8 matched with the mounting groove 14 is inserted and pulled out in the mounting groove 14, a plugging portion 81 inserted in the water passing hole 15 and circumferentially sealed with the water passing hole 15 is arranged at the bottom of the connecting block 8, a through hole 82 penetrating the whole connecting block 8 vertically is formed in the central position of the bottom of the plugging portion 81, a water outlet connecting pipe 83 is connected to the upper hole of the through hole 82, the water outlet pipe 83 is connected by a plurality of joints connected end to form adjacent joints, fixed in a clamping mode and rotatable mode, the joints are of annular structures, a spherical groove is formed in one end of the joints, the spherical end portions can be clamped into the spherical grooves in the adjacent joints, the spherical end portions, the spray heads can rotate in a certain range, the joints, the spray heads are fixed to the joints at the frontmost ends, the orientation of the spray heads are adjusted to enable the spray heads to face towards a workpiece to be processed, the water pipe is connected to be connected to the workpiece of the water inlet of the water controlling pipe, and the water outlet pipe, and the whole water outlet pipe, and controls the whole spray head of the water outlet pipe. The drill bit 6 of the drilling machine is driven to move up and down through the linkage of the moving block 41, the lead screw 4 and the first motor 42, the linear guide rails 3 are arranged on the two sides of the lead screw 4, and the drill bit 42 is connected and linked with the sliding blocks 31 on the two linear guide rails 3 through the mounting plate 51, so that the drill bit 6 can move very stably in the vertical direction. The both ends of mounting panel 5 are fixed with slider 31, and the centre is fixed with movable block 41 again, and three is fixed above that and all on a straight line like this, lets mounting panel 5 very stable can not receive the influence that shakes of two 51 rotations productions of motor, and its motion is more stable for the machining precision obtains promoting. The water passing channel 13 is arranged inside the bearing plate 11 on the workbench 1 of the drilling machine, the inlet of the water passing channel 13 is positioned at the side part of the bearing plate 11, the mounting groove 14 is further formed in the bearing plate 11, the water passing hole 15 communicated with the water passing channel 13 is formed in the groove bottom of the mounting groove 14, the water outlet connecting pipe 83 and the nozzle 84 are arranged on the connecting block 8, the connecting block 8 is connected in the mounting groove 14 in a plugging manner and is abutted to the groove bottom of the mounting groove 14 by means of gravity of the connecting block, the plugging part 81 on the connecting block is inserted into the water passing hole 15 in a socket manner to enable the through hole 82 in the connecting block to be communicated with the water passing hole 15, therefore, as long as the water passing channel 13 passes through water, the spray head can spray water to a workpiece in processing, the assembling and the disassembling are very convenient due to the plugging design of the adapting block, the water passing channel 13 is directly hidden inside the bearing plate 11, no pipeline is exposed outside, and the structure of the whole drilling machine is optimized and simplified.

The connecting block 8 is embedded in the mounting groove 14 and then leans on the tank bottom of mounting groove 14 to form certain leakproofness by its own weight, so that the fixing stability of the connecting block 8 and the bearing plate 11 is improved, and the inserting part 81 and the water passing hole 15 are sealed in the circumferential direction, therefore, the double sealing effect is achieved, and the stability of the connecting block 8 and the bearing plate 11 after fixation is further improved. The cross-section of mounting groove 14 along the horizontal direction is square, and connecting block 8's appearance is the square shape, and four sides of connecting block 8 respectively lean on with one side cell wall of mounting groove 14 mutually, and connecting block 8's upper end stretches out mounting groove 14 and exposes outside. The mounting groove 14 of square profile and the massive connecting block 8 of square, the cooperation of circumference between them makes the unable circumferential direction of connecting block 8, makes it can not receive factors such as rivers to take place to rotate, and stability is better, and the side of connecting block 8 pastes with the cell wall of mounting groove 14 in addition and leans on together, and the leakproofness is better like this, and connection stability is better. The upper end of the connecting block 8 of this design exposes outside mounting groove 14, makes things convenient for us manual plug like this, and assembly and disassembly is convenient. The groove walls of the mounting groove 14 near the groove bottom are all inclined inwards to form an inclined surface 16, and the end part of the connecting block 8 is provided with a guide surface 85 matched with the inclined surface 16. Four cell walls of mounting groove 14 all have the inclined plane 16 of leanin and form the structure of similar back taper platform, have spigot surface 85 on connecting block 8, and the spigot surface 85 cooperation on four sides cooperates with foretell back taper platform, can let between connecting block 8 and the bearing plate 11 cooperate inseparabler, and stability is higher. The peripheral surface of grafting portion 81 is seted up the annular, and the embedded sealing washer 9 that is equipped with of annular, grafting portion 81 passes through sealing washer 9 and the pore wall circumference of water hole 15 is sealed. The outer peripheral surface of the insertion part 81 is also embedded with a sealing ring 9, and the sealing ring 9 can ensure that the sealing performance between the insertion part 81 and the hole wall of the water through hole 15 is better.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only for convenience of description, and are not intended to indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and therefore, are not to be considered as limitations of the present invention, and the fundamental principles, main features, and advantages of the present invention have been shown and described above, as would be understood by those skilled in the art.

Claims

1. The environment-friendly water-cooling numerically-controlled drilling machine comprises a workbench (1), wherein a bearing plate (11) is arranged at the top of the workbench (1), the environment-friendly water-cooling numerically-controlled drilling machine is characterized in that a mounting plate (2) capable of moving in four directions from top to bottom and from left to right is arranged on the bearing plate (11), a plurality of cutters (3) are arranged on the mounting plate (2) side by side, a clamp (4) capable of rotating in the circumferential direction is arranged below the cutters (3) on the bearing plate (11), a water passing channel (13) is arranged inside the bearing plate (11), an inlet of the water passing channel (13) is arranged on one side of one of the bearing plate (11), a mounting groove (14) is formed in one side of the clamp (4) on the upper surface of the bearing plate (11), a water passing hole (15) communicated with the water passing channel (13) is formed in the bottom of the mounting groove (14), a connecting block (8) matched with the mounting groove (14) is inserted and pulled out in the mounting groove (8), a through hole (81) is formed in the water passing hole (15) and sealed with the water passing hole (15) is formed in the bottom of the connecting block (81), a central inserting hole (82) is formed in the inserting part (81) in the circumferential direction, and a through hole (83) is formed in the central position of the through hole (82) and penetrates through hole (82) of the connecting block (81), and the through hole (82) is formed in the through hole (83), the end of the adapter is provided with a nozzle (84).

2. The environment-friendly water-cooling numerically-controlled drilling machine as claimed in claim 1, wherein a vertical screw rod assembly (5) and a horizontal screw rod assembly (6) are arranged on the bearing plate (11), the vertical screw rod assembly (5) is provided with a first moving plate (51) capable of moving up and down, the horizontal screw rod assembly (6) is fixed on the first moving plate (51), the horizontal screw rod assembly (6) is provided with a second moving plate (61) capable of moving left and right, and the mounting plate (2) is fixed on the second moving plate (61).

3. The environment-friendly water-cooling numerical control drilling machine as claimed in claim 2, wherein the vertical screw rod assembly (5) comprises a first back plate (52), a first rotatable screw rod (53) is axially fixed on the first back plate (52), the first screw rod (53) is vertically arranged, a first motor (57) capable of driving the first screw rod (53) to rotate is fixed on the first back plate (52), a first moving block (54) is connected to the first screw rod (53) in a threaded manner, linear guide rails (55) are vertically arranged on the first back plate (52) and located on two sides of the first screw rod (53), the first linear guide rails (55) are provided with a first sliding block (56) capable of sliding, the first moving plate (51) is fixed on the first sliding block (56), and two ends of the first moving plate (51) are respectively fixed with the first sliding block (56).

4. The environment-friendly water-cooling numerically-controlled drilling machine according to claim 3, wherein the horizontal lead screw assembly (6) comprises a second back plate (62), the back of the second back plate (62) is fixed on the first moving plate (51), a rotatable second lead screw (63) is circumferentially fixed on the second back plate (62), the second lead screw (63) is horizontally arranged, a second motor (67) capable of driving the second lead screw (63) to rotate is fixed on the second back plate (62), a second moving block (64) is in threaded connection with the second lead screw (63), two linear guide rails (65) parallel to the second lead screw (63) are arranged on the second back plate (62) and located on two sides of the second lead screw (63), a second sliding block (66) is arranged on the second linear guide rails (65), the second moving plate (61) is fixed on the second moving block (64), and two ends of the second moving plate (61) are fixed with the second sliding block (66).

5. The environment-friendly water-cooling numerically-controlled drilling machine as claimed in claim 4, wherein the plurality of cutters (3) at least comprise a drill cutter, a tapping cutter and a chamfering cutter.

6. The environment-friendly water-cooling numerically controlled drilling machine as claimed in any one of claims 1 to 5, wherein the cross section of the mounting groove (14) in the horizontal direction is square, the shape of the connecting block (8) is square, four side faces of the connecting block (8) are respectively attached to a groove wall on one side of the mounting groove (14), and the upper end of the connecting block (8) extends out of the mounting groove (14) and is exposed outside.

7. An environment-friendly water-cooled numerically controlled drilling machine as claimed in claim 6, wherein the walls of the mounting groove (14) near the bottom of the groove are all inclined inward to form an inclined surface (16), and the end of the connecting block (8) is provided with a guide surface (85) matched with the inclined surface (16).

8. The environment-friendly water-cooling numerically-controlled drilling machine as claimed in claim 7, wherein an annular groove is formed in the outer peripheral surface of the insertion part (81), a sealing ring (9) is embedded in the annular groove, and the insertion part (81) is circumferentially sealed with the wall of the water through hole (15) through the sealing ring (9).