CN112108682B

CN112108682B - Drilling system and drilling method for spindle box of numerical control machine tool

Info

Publication number: CN112108682B
Application number: CN202010995060.7A
Authority: CN
Inventors: 戴建福; 戴思聪; 石琪琪
Original assignee: Dongguan Jianke Electromechanical Technology Co ltd
Current assignee: Dongguan Jianke Electromechanical Technology Co.,Ltd.
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2022-01-18
Anticipated expiration: 2040-09-21
Also published as: CN112108682A

Abstract

The invention relates to a drilling system and a drilling method for a spindle box of a numerical control machine tool, wherein the drilling system comprises a rack and a moving mechanism which is arranged on the rack and used for controlling the spindle box to move, and the drilling system is characterized in that: the drilling device is arranged on the frame, controls lifting through the lifting module and is used for drilling a spindle box; the drilling device comprises a drill bit for drilling and a driver which controls lifting through a lifting module and can drive the drill bit to rotate forwards or backwards; the invention has the beneficial effects that: the drilling precision is high, and drill bit long service life, and is not fragile.

Description

Drilling system and drilling method for spindle box of numerical control machine tool

Technical Field

The invention relates to the technical field of spindle box drilling, in particular to a drilling system and a drilling method for a spindle box of a numerical control machine tool.

Background

The main spindle box is the most important component part in the machine tool and is mainly used for arranging various transmission parts and additional devices for the machine tool to work, so that the main spindle box is usually required to be perforated to ensure the use of the main spindle box during machining;

however, although the spindle box can be drilled by the drilling device (or system) of the spindle at present, a large amount of iron filings are adsorbed on the drill bit after the drilling, so that the drill bit works in a high-load state for a long time (namely, the loss of the drill bit is increased due to a large amount of impurities left on the drill bit), the drilling efficiency and the drilling precision are influenced, and the drill bit is seriously damaged.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a drilling system and a drilling method for a main spindle box of a numerical control machine tool, and aims to solve the problems in the background technology.

The technical scheme of the invention is realized as follows: the utility model provides a drilling system of digit control machine tool headstock, includes the frame and installs in the frame and be used for controlling the moving mechanism that the headstock removed, its characterized in that: the drilling device is arranged on the frame, controls lifting through the lifting module and is used for drilling a spindle box; the drilling device comprises a drill bit for drilling and a driver which controls lifting through a lifting module and can drive the drill bit to rotate forwards or backwards.

Preferably: the lifting device also comprises a control part for controlling the operation of the driver and the lifting module; the control part comprises an ascending unit and a descending unit for controlling the lifting module to move, a drilling unit for controlling the driver to rotate forwards and a chip throwing unit for controlling the driver to rotate backwards; when the descending unit control driver descends, the drilling unit control driver drives the drill bit to rotate forwards, and when the ascending unit control driver ascends, the chip throwing unit control driver drives the drill bit to rotate backwards.

Preferably: the dust removal module is provided with a dust removal cavity which is used for the drill bit to move and two ends of which are opened; wherein, the dust removal module is including having dust removal body, at least one sunken locating of dust removal body lateral wall, locating gas storage body in the first cavity, locating the accent department of first cavity is used for the extrusion the stripper plate of gas storage body, be used for control the drive module of stripper plate activity, with gas storage body intercommunication and output are located the outlet duct of dust removal intracavity and with gas storage body intercommunication and input are located the intake pipe outside the dust removal cavity.

Preferably: the driving module comprises at least one substrate arranged on the dust removal body, sliding grooves which are arranged on the substrate and extend in the radial direction and correspond to the extrusion plates one by one, a pushing part which is connected with the sliding grooves in a sliding manner through a driving shaft and is connected with the extrusion plates, and a control unit which is used for controlling the driving shaft to move in the sliding grooves and driving the pushing part to move.

Preferably: the dust removing device also comprises a dust discharging module which is arranged at the top end of the dust removing body and is used for pumping away impurities in the dust removing cavity; wherein, the dust exhaust module including install in the closing plate on dust removal body top, locate just supply on the closing plate opening, four at least rotation of drill bit activity connect in the closing plate inboard and with opening circumference equidistance interval sets up and at least one through motor drive's belt pulley, transmission connect the hold-in range on each belt pulley, a plurality of install in just be located respectively guide rail between the adjacent belt pulley, gas outlet and a plurality of between a plurality of group's distribution and the adjacent belt pulley between the adjacent belt pulley locate between the adjacent belt pulley and through hold-in range drive's raise dust module on the closing plate.

Preferably: the raise dust module including the activity in on the guide rail and be used for clearing up the clearance piece of guide rail, install in on the clearance piece and with the raise dust cylinder that the hold-in range is connected, locate the fumarole on the raise dust cylinder and be used for the air supply body to each raise dust cylinder air feed.

Preferably: still include a plurality of through the drive of promotion portion and can splice each other and be used for sealing the closing part of dust removal body bottom.

Preferably: the control unit includes controllers for controlling the respective drive shafts and a control section for sending an execution command to the respective controllers; the controllers are electrically connected with each other and form an independent mode and a synchronous mode, and in the independent mode, the control part sends an execution command to each controller and controls the movement of each driving shaft through the controllers; in the synchronous mode, the control unit issues an execution command to any controller and controls the activity of the corresponding drive shaft, the controller issues a signal based on the execution command to the remaining controllers, and the remaining controllers control the activity of each drive shaft based on the signal of the controller.

In addition, the invention also provides a drilling method using the drilling system, which is characterized by comprising the following steps:

s1: preparing a spindle box, placing the spindle box on a moving mechanism, driving the spindle box to move by using the moving mechanism, and stopping running when driving the spindle to move to the position below the drilling device;

s2: the lifting module controls the drill bit to descend, meanwhile, the driver controls the drill bit to rotate forwards and drills a hole on the spindle box, the lifting module stops controlling the drill bit to descend until the drilling is finished, and the driver stops controlling the drill bit to rotate forwards;

s3: the lifting module controls the drill bit to ascend, the driver controls the drill bit to reverse, the drill bit is enabled to leave the spindle box, chip throwing action is carried out, the lifting module stops controlling the drill bit to ascend until the drill bit is reset, and the driver stops controlling the drill bit to reverse;

s4: the moving mechanism continuously controls the spindle box to move, and the next spindle box is moved to the position below the drilling device and then is stopped;

s5: looping steps S1-S4.

Preferably: the method also comprises a dust blowing step for the drill bit; wherein the dust blowing step comprises:

a1: in the process of controlling the drill bit to ascend S3, the drill bit enters the dust removal cavity;

a2: under an independent mode, the control unit sequentially sends out execution commands to the controllers, each controller controls each driving shaft to drive each pushing part to push the extrusion plate to sequentially extrude the gas storage bodies in a clockwise or anticlockwise direction, gas is injected to the drill bit in the dust removal cavity in the clockwise or anticlockwise direction through each gas outlet pipe, impurities on the drill bit are blown away, and one dust blowing action is completed;

a3: under the synchronous mode of each controller, the control unit sends an execution command to any controller, and the controller sends signals to other controllers, so that each controller synchronously controls each driving shaft to drive each pushing part and each extrusion plate to reset, and the air storage body is inflated;

a4: under the synchronous mode of each controller, the control unit sends an execution command to any controller, the controller sends signals to other controllers, each controller synchronously controls each driving shaft to drive each pushing part and each extruding part to simultaneously extrude the gas storage body, each gas outlet pipe simultaneously blows gas to the drill bit in the dust removal cavity, impurities of the drill bit are blown away, secondary dust blowing action is completed, and the step A3 is repeated;

a5: when the step A2 and/or the step A4 are carried out, the air source body supplies air to each dust raising cylinder, air is jetted into the dust removing cavity through the air jet holes in the dust raising cylinders, impurities on the inner wall of the dust removing cavity or the drill bit are blown away, meanwhile, the belt pulleys are controlled by the motor to rotate clockwise or anticlockwise at intervals, the dust raising cylinders are further driven to reciprocate between the adjacent belt pulleys, and the air jet of the air jet holes is matched to form cyclone flow in the dust removing cavity, so that the impurities in the dust removing cavity are raised;

a6: air is pumped into the dust removal cavity through the air outlet by the air pumping device, and impurities lifted in the dust removal cavity are pumped out.

The invention has the beneficial effects that:

1) after the spindle box is drilled, the 'reversing' action of the drill bit is added, the reversing action can not only facilitate the drill bit to leave the drilled hole, but also enable the drilled hole to generate and attach impurities (such as: scrap iron, the same below) is thrown away, so that a large amount of impurities remained on the drill bit are avoided, the service life of the drill bit is ensured, and the hole opening precision and efficiency of the spindle box are ensured;

2) in order to further improve the cleaning effect of the drill bit, the dust removal device is also provided with a dust removal body (which comprises a dust removal cavity for the drill bit to move), when the drill bit opens the hole of the main shaft box, the dust removal body enters the dust removal cavity after (or before) chip removal, the gas in the gas storage body is extruded by the extrusion block to be sprayed out, the drill bit is cleaned, and the dust removal device can also be matched with the rotation of the drill bit in the cleaning process to assist the drill bit and improve the cleaning effect;

3) based on the point (2), the invention not only provides a mode of injecting air from the air storage body to the drill bit (the mode is radial air injection), but also provides a mode of axial air injection and axial air extraction, namely: the invention utilizes each dust raising cylinder to supply air to the dust removing cavity (the bottom of the dust removing cavity can be sealed when the dust raising cylinders supply air), the dust raising cylinders supply air (or jet air) to the dust removing cavity to form axial jet air, on one hand, impurities on the inner wall of a drill bit or the dust removing cavity can be blown away, on the other hand, the dust removing cavity can form rotational flow by matching with a synchronous belt, so that the impurities (the impurities with lighter weight) in the dust removing cavity are raised, and on the other hand, the impurities in the dust removing cavity are pumped away by utilizing an air exhaust device (which can be an air pump, in detail, the embodiment) so as to provide the cleaning of the drill bit and the cleaning of the dust removing cavity, the former can ensure the drilling efficiency and the precision of the drill bit, and the latter can improve the environment of the dust removing cavity and ensure the cleaning of the drill hole;

4) moreover, in order to enable the dust collection cylinder to move more stably, the dust collection cylinder is also provided with the guide rail, the cleaning block is arranged to clean the guide rail in order to avoid impurities remaining on the guide rail, the air outlet can be arranged at the opening of the guide rail, and the impurities on the guide rail can be pumped out by pumping air, so that the stable operation of the dust collection cylinder is ensured, and the cleaning effect on the dust collection cavity and the drill bit is further improved;

the following are specifically mentioned:

the invention can divide the drill bit 'radial air injection' mode into two parts, firstly, the air supply is carried out to the drill bit by utilizing the air outlet pipes in turn to carry out primary cleaning, secondly, the air supply is carried out to the drill bit by utilizing the air outlet pipes simultaneously to carry out secondary cleaning, the cleaning effect of the drill bit can be improved, the cleaning of the drill bit is controlled in real time by the control unit, the air supply synchronism of the air outlet pipes can be improved under the synchronous mode, and the unilateral primary cleaning can be conveniently carried out to all angles of the drill bit under the independent mode, thereby ensuring the cleaning effect and the cleaning efficiency of the drill bit.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of embodiment 2 of the present invention;

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

FIG. 4 is a sectional view A-A of FIG. 3;

FIG. 5 is a schematic block diagram of a control unit according to embodiment 2 of the present invention;

FIG. 6 is a schematic structural diagram of embodiment 3 of the present invention;

FIG. 7 is a cross-sectional view taken at C-C of FIG. 6;

fig. 8 is a schematic cross-sectional view of a closed part in embodiment 3 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1, the present invention discloses a drilling system for a spindle box of a numerical control machine, which includes a frame 10 and a moving mechanism 30 installed on the frame 10 and used for controlling the movement of the spindle box 20, and in the embodiment of the present invention, the drilling system includes a drilling device 50 installed on the frame 10 and controlled to ascend and descend by a lifting module 40 and used for drilling a hole on the spindle box 20; the drilling device 50 includes a drill 500 for drilling a hole and a driver 501 controlled by the lifting module 40 to lift and drive the drill 500 to rotate forward or backward.

In a specific embodiment of the present invention, the moving mechanism 30 may be a conveyor belt.

In a specific embodiment of the present invention, the driver 501 may be a plc motor.

In an embodiment of the present invention, the lifting module 40 may be a cylinder.

In the embodiment of the present invention, the present invention further includes a control portion for controlling the operation of the driver 501 and the lifting module 40; the control part comprises an ascending unit and a descending unit for controlling the lifting module 40 to move, a drilling unit for controlling the driver 501 to rotate forwards and a chip throwing unit for controlling the driver 501 to rotate backwards; when the descending unit control driver 501 descends, the drilling unit control driver 501 drives the drill bit to rotate forward, and when the ascending unit control driver 501 ascends, the chip throwing unit control driver 501 drives the drill bit to rotate backward.

In a particular embodiment of the invention, the control portion constitutes a numerical control system for driving the movement of the lifting module 40 or the actuator 501.

In addition, the present embodiment further provides a drilling method using the above drilling system, which is characterized by comprising the following steps:

s5: looping steps S1-S4.

The principle and the advantages of the embodiment are as follows:

the principle is as follows: the moving mechanism drives the spindle box to move to the position below the drill bit and then stops, the plc motor is used for controlling the drill bit to rotate forwards (clockwise), the air cylinder is used for controlling the drill bit to descend, the spindle box is drilled, after the drilling is finished, the plc motor is used for controlling the drill bit to rotate backwards (anticlockwise), the air cylinder is used for controlling the drill bit to ascend, the drill bit is separated from a process opening on the spindle box, and the resetting and chip throwing actions are finished;

the advantages are that: in the embodiment, after the spindle box is drilled, the 'reversing' action of the drill bit is added, the reversing action can not only facilitate the drill bit to leave the drilled hole, but also throw away impurities (such as scrap iron and the like) generated in the drilled hole and attached to the drill bit, so that a large amount of impurities remained on the drill bit are avoided, and the service life of the drill bit and the accuracy and efficiency of hole opening of the spindle box are ensured.

Example 2 is different from example 1 in that

As shown in fig. 2-5, in the embodiment of the present invention, the dust removing module 60 further includes a dust removing chamber 600 with two open ends for the drill 500 to move; the dust removal module 60 comprises a dust removal body 601 having the dust removal cavity 600, at least one first cavity 602 recessed on the outer side wall of the dust removal body 601, an air storage body 603 arranged in the first cavity 602, a pressing plate 604 arranged at the orifice of the first cavity 602 and used for pressing the air storage body 603, a driving module 605 used for controlling the movement of the pressing plate 604, an air outlet pipe 606 communicated with the air storage body 603 and having an output end located in the dust removal cavity 600, and an air inlet pipe 607 communicated with the air storage body 603 and having an input end located outside the dust removal cavity 600.

In the embodiment of the present invention, eight first chambers 602 are recessed and distributed on the outer sidewall of the dust removing body 601 at equal intervals in the circumferential direction with the dust removing cavity 600 as the center.

In the embodiment of the present invention, the gas storage body 603 has an inner cavity, and the inner cavity is communicated with the gas outlet pipe 606 and the gas inlet pipe 607.

In the embodiment of the present invention, the outlet pipe 606 and the inlet pipe 607 are both provided with a check valve for making the gas flow from the inlet pipe 607 to the outlet pipe 606.

In an embodiment of the present invention, the driving module 605 includes at least one base plate 6050 installed on the dust removing body 601, sliding grooves 6051 provided on the base plate 6050 and extending radially and corresponding to the pressing plates 604 one by one, a pushing portion 6053 connected to the pressing plates 604 and connected to the sliding grooves 6051 through a driving shaft 6052, and a control unit 70 for controlling the driving shaft 6052 to move in the sliding grooves 6051 and driving the pushing portion 6053 to move.

In the embodiment of the present invention, the control unit 70 includes a controller 700 for controlling each drive shaft 6052 and a control section 701 for sending an execution command to each controller 700; wherein, the controllers 700 are electrically connected to each other to form an independent mode and a synchronous mode, and in the independent mode, the control part 701 issues an execution command to each controller 700 and controls the movement of each driving shaft 6052 through the controller 700; in the synchronous mode, the control unit 701 issues an execution command to any controller 700 and controls the movement of the corresponding drive shaft 6052, and the controller 700 issues a signal based on the execution command to the remaining controller 700, and the remaining controller 700 controls the movement of each drive shaft 6052 based on the signal of the controller 700.

The principle and the advantages of the embodiment are as follows:

the principle is as follows: the drilling principle of the embodiment is the same as that of the embodiment, except that: after the drill bit opens the spindle box, the drill bit enters a dust removal cavity of the dust removal body through the lifting of the lifting module, after the drill bit enters the dust removal cavity, the control unit sends an execution command to the controller (in a synchronous mode, the drill bit can be sent to any controller, and in an independent mode, the drill bit can be sent to each controller), the pushing part is controlled by the controller to push the extrusion plate, the gas storage body is extruded by the extrusion plate, the gas in the gas storage body is sprayed out to the drill bit through the gas outlet pipe, the drill bit is cleaned, the gas in the gas storage body is completely sprayed out, the pushing part is reset, and the gas storage body is filled with gas (due to negative pressure) due to the check valves arranged on the gas inlet pipe and the gas outlet pipe, and the next round of gas spraying is carried out;

it should be noted that:

first, the present embodiment utilizes the control unit to set the independent mode and the synchronous mode, so that a more "comfortable" control of each driving shaft can be realized, that is: the air outlet pipes are provided for synchronous air injection and independent interval air injection, so that cleaning of all positions of the drill bit is ensured, the air injection amount of the drill bit can be increased by synchronous air injection, the cleaning area of the drill bit is ensured, the independent air injection can be used for injecting air to all positions of the drill bit, and the influence of synchronous air injection among a plurality of air outlet pipes on the impact amount of air flow on the drill bit is avoided, so that the cleaning effect of the drill bit is better;

secondly, the driving shaft of the present embodiment can be controlled not only by the controller, but also by the existing actuator, for example: a cylinder;

thirdly, the two substrates of the embodiment can ensure that the two ends of the driving shaft have stable acting points, ensure the stable operation of the driving shaft and further ensure the normal air outlet of the air storage body;

fourthly, the purpose of using the gas storage body (which can be made of elastic material, such as rubber) in the embodiment is: the volume of the inner cavity of the air reservoir is determined, so that the air injection amount can be controlled, and by taking the existing air pump as an example, although the air pump can also be controlled by using the existing controller, when the air pump stops, the impeller in the air pump can continue to rotate due to inertia, so that the air reservoir is far short of the air reservoir in the aspect of accurate amount control.

Example 3 is different from example 2 in that

As shown in fig. 6-8, in the embodiment of the present invention, the dust removing device further includes a dust discharging module 80 installed at the top end of the dust removing body 601 and used for drawing out impurities in the dust removing cavity 600; wherein, dust exhaust module 80 including install in the closing plate 800 on dust removal body 601 top, locate on the closing plate 800 and supply opening 801, four at least rotation of drill bit 500 activity connect in closing plate 800 is inboard and with opening 801 circumference equidistance interval sets up and at least one through motor drive's belt pulley 802, the drive connects in the hold-in range 803 on each belt pulley 802, a plurality of install in on the closing plate 800 and be located respectively guide rail 804 between the adjacent belt pulley 802, gas outlet 806 between a plurality of group's distribution and the adjacent belt pulley 802 and a plurality of locate between the adjacent belt pulley 802 and through the raise dust module 805 of hold-in range 803 transmission.

In an embodiment of the present invention, the dust raising module 805 includes a cleaning block 8050 movable on the guide rail 804 and used for cleaning the guide rail 804, a dust raising cylinder 8051 installed on the cleaning block 8050 and connected to the synchronous belt 803, an air injection hole 8052 provided on the dust raising cylinder 8051, and an air source body used for supplying air to each dust raising cylinder 8051.

In an embodiment of the present invention, the gas source may be an air pump.

In the embodiment of the present invention, the dust removing device further includes a plurality of closing parts 90 driven by the pushing parts 6053 and capable of being spliced with each other and closing the bottom end of the dust removing body 601.

In the embodiment of the present invention, the closed portion 90 has a fan-shaped cross-section, and the surface thereof may be distributed with filter holes 91.

In addition, the present embodiment also provides a dust blowing step based on the drilling method in embodiment 1; wherein the dust blowing step comprises:

a1: in the process of controlling the drill to ascend in the step S3, the drill enters the dust removing cavity;

In a specific embodiment of the present invention, the air pumping device may be an air pump.

The principle and the advantages of the embodiment are as follows:

the principle is as follows: referring to fig. 6, this embodiment further adds parts of "axial air injection" and "axial air extraction" to embodiment 2, and the embodiment is equivalent to "radial air injection":

in more detail: after the drill bit enters the dust removing cavity, the driving shaft controls the pushing part and enables the extrusion plate to extrude the air storage body, the closed parts arranged at the bottom of the dust removing body are close to each other (refer to fig. 8), the bottom of the dust removing cavity is closed, the air outlet pipe is used for injecting air while being closed (the principle can refer to embodiment 2), meanwhile, the air pump can be used for supplying air to each dust raising cylinder, the air injection hole on the dust raising cylinder injects air into the dust removing cavity, the motor can be used for driving the belt pulley to rotate forwards or backwards in the process of continuously injecting air to the air injection hole, so as to drive each synchronous belt to move clockwise or anticlockwise and further drive each dust raising cylinder to reciprocate on the guide rail, thereby generating 'cyclone flow' in the dust removing cavity, enabling the impurities on the inner wall of the dust removing cavity and the drill bit to fall and raise, and then the air pump is used for pumping away the impurities in the dust removing cavity through the air outlet, thereby completing the dust exhaust work;

the purpose of this embodiment is: the sealing part is arranged at the bottom, so that a large amount of impurities of fine scraps can be prevented from falling into the spindle box when the drill bit is cleaned, and therefore, the size of a filter hole (the filter hole can be selected according to actual requirements or not) on the sealing part can be smaller than that of the fine scraps;

it should be noted that:

firstly, the plurality of dust raising cylinders of the embodiment are conveyed by one synchronous belt, so that the moving synchronism of the dust raising cylinders can be ensured, and the dust raising and the extraction work of impurities in the dust removing cavity are ensured;

its two, the guide rail of this embodiment can provide the stability of raise dust section of thick bamboo activity, moreover, in order to avoid deposit impurity on the guide rail, this embodiment can utilize the clearance piece to clear up the guide rail, promptly: when the cleaning block moves on the guide rail, impurities on the guide rail can be cleaned, and the cleaned impurities can be pumped out through the air outlet;

thirdly, the drill bit is subjected to twice air injection actions, the first independent air injection and the second synchronous air injection can further improve the cleaning effect of the drill bit, and the drilling precision of the drill bit is ensured;

it is four, what this embodiment got rid of bits unit and drilling unit can drive drill bit corotation (can be clockwise rotation) or reverse (can be anticlockwise rotation), it not only can accomplish before getting into the dust removal chamber and get rid of the bits, can also cooperate three kinds of air currents to work after getting into the dust removal chamber, when the direction of whirl is clockwise, the direction of rotation of drill bit can be anticlockwise, through two kinds of different directions of rotation, further improve the cleaning effect to the drill bit, on the contrary, when the direction of whirl is anticlockwise, the drill bit can be clockwise rotation, and further cooperate axial air current and radial air current, further improve the clean effect to the drill bit.

Three gas flows are: "rotational flow (i.e., the air flow generated by the dust raising cylinder), axial air flow (i.e., the air flow generated by the air extractor through the air outlet), and radial air flow (i.e., the air flow generated by the air reservoir through the air outlet pipe)".

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a drilling system of digit control machine tool headstock, includes frame (10) and installs moving mechanism (30) that just is used for controlling headstock (20) to remove on frame (10), its characterized in that: the drilling device comprises a drilling device (50) which is arranged on a frame (10), is controlled to ascend and descend by a lifting module (40) and is used for drilling a spindle box (20); wherein the drilling device (50) comprises a drill bit (500) for drilling and a driver (501) which is controlled by the lifting module (40) to lift and can drive the drill bit (500) to rotate forwards or backwards;

the dust removal device also comprises a dust removal module (60) which is provided with a dust removal cavity (600) for the drill bit (500) to move and two ends of which are arranged in an open manner; the dust removal module (60) comprises a dust removal body (601) with the dust removal cavity (600), at least one first cavity (602) which is concavely arranged on the outer side wall of the dust removal body (601), an air storage body (603) arranged in the first cavity (602), a pressing plate (604) which is arranged at the cavity opening of the first cavity (602) and is used for pressing the air storage body (603), a driving module (605) used for controlling the movement of the pressing plate (604), an air outlet pipe (606) which is communicated with the air storage body (603) and has an output end positioned in the dust removal cavity (600), and an air inlet pipe (607) which is communicated with the air storage body (603) and has an input end positioned outside the dust removal cavity (600);

the driving module (605) comprises at least one base plate (6050) arranged on the dust removal body (601), sliding grooves (6051) which are arranged on the base plate (6050), extend in the radial direction and correspond to the extrusion plates (604) one by one, pushing parts (6053) which are connected with the sliding grooves (6051) in a sliding way through driving shafts (6052) and are connected with the extrusion plates (604), and a control unit (70) which is used for controlling the driving shafts (6052) to move in the sliding grooves (6051) and driving the pushing parts (6053) to move;

the dust removing device also comprises a dust discharging module (80) which is arranged at the top end of the dust removing body (601) and is used for pumping out impurities in the dust removing cavity (600); the dust exhaust module (80) comprises a sealing plate (800) arranged at the top end of the dust removal body (601), an opening (801) arranged on the sealing plate (800) and used for the drill bit (500) to move, at least four belt pulleys (802) which are rotatably connected to the inner side of the sealing plate (800) and are arranged at intervals in the circumferential direction of the opening (801) and at least driven by a motor, synchronous belts (803) connected to the belt pulleys (802) in a transmission manner, a plurality of guide rails (804) arranged on the sealing plate (800) and respectively positioned between the adjacent belt pulleys (802), a plurality of groups of air outlets (806) distributed between the adjacent belt pulleys (802), and a plurality of dust raising modules (805) arranged between the adjacent belt pulleys (802) and driven by the synchronous belts (803);

the dust raising module (805) comprises a cleaning block (8050) which is movable on the guide rail (804) and used for cleaning the guide rail (804), a dust raising cylinder (8051) which is arranged on the cleaning block (8050) and connected with the synchronous belt (803), a gas spraying hole (8052) which is arranged on the dust raising cylinder (8051) and a gas source body which is used for supplying gas to each dust raising cylinder (8051).

2. The drilling system of the headstock of the numerical control machine tool according to claim 1, characterized in that: the lifting device also comprises a control part for controlling the operation of the driver (501) and the lifting module (40); the control part comprises an ascending unit and a descending unit which control the movement of the lifting module (40), a drilling unit used for controlling the driver (501) to rotate forwards and a chip throwing unit used for controlling the driver (501) to rotate backwards; when the descending unit control driver (501) descends, the drilling unit control driver (501) drives the drill bit to rotate forwards, and when the ascending unit control driver (501) ascends, the chip throwing unit control driver (501) drives the drill bit to rotate backwards.

3. The drilling system of the headstock of the numerical control machine tool according to claim 1, characterized in that: the dust removal device further comprises a plurality of closing parts (90) which are driven by the pushing parts (6053) and can be spliced with each other and used for closing the bottom end of the dust removal body (601).

4. The drilling system of the headstock of the numerical control machine tool according to claim 1, characterized in that: the control unit (70) includes controllers (700) for controlling the respective drive shafts (6052) and control sections (701) for sending execution commands to the respective controllers (700); the controllers (700) are electrically connected with each other to form an independent mode and a synchronous mode, and in the independent mode, the control part (701) sends an execution command to each controller (700) and controls the movement of each driving shaft (6052) through the controller (700); in the synchronous mode, the control unit (701) issues an execution command to an arbitrary controller (700) and controls the movement of a corresponding drive shaft (6052), the controller (700) issues a signal based on the execution command to the remaining controller (700), and the remaining controller (700) controls the movement of each drive shaft (6052) based on the signal of the controller (700).

5. A drilling method using the drilling system as claimed in claim 1, characterized by comprising the steps of:

s5: looping steps S1-S4;

the method also comprises a dust blowing step for the drill bit; wherein the dust blowing step comprises: