CN210280789U

CN210280789U - Guider and numerical control drilling machine tool for numerical control drilling machine tool

Info

Publication number: CN210280789U
Application number: CN201821885102.6U
Authority: CN
Inventors: 彭土明
Original assignee: Guangdong Ligong Equipment Co Ltd
Current assignee: Guangdong Ligong Equipment Co Ltd
Priority date: 2018-11-15
Filing date: 2018-11-15
Publication date: 2020-04-10
Anticipated expiration: 2028-11-15

Abstract

The utility model discloses a guider and numerical control drilling machine tool for numerical control drilling machine tool, guider include slide and guiding mechanism, but guiding mechanism relative slide slides along the fore-and-aft direction of lathe. The utility model discloses well guiding mechanism can slide along the front and back (perhaps called Y axle) direction of lathe relatively, drives guiding mechanism promptly and removes to the protection casing one side of keeping away from the slide, so that the center of guiding mechanism's bracket component is skew the center of main shaft to make guider can cutter rebound relatively, so that follow-up automatic tool changing mechanism changes the cutter, thereby improved numerical control drilling machine's production efficiency.

Description

Guider and numerical control drilling machine tool for numerical control drilling machine tool

Technical Field

The utility model relates to a machine tool structure technical field especially relates to a guider and numerical control drilling machine tool for numerical control drilling machine tool.

Background

The numerical control drilling machine is one of the common devices in the mold manufacturing or other metal processing industries, and is generally used for precision drilling of metal blanks. The numerical control machine tool is equipment requiring high machining precision, and the numerical control drilling machine tool usually adopts a deep hole drilling mode for meeting the high precision requirement. The deep hole drill can be processed to obtain round holes with accurate diameter size, high roundness and high verticality. Holes with a hole depth to hole diameter ratio of greater than 6 are often referred to as deep holes in machining.

When a cutter of a deep hole drill is machined, because of the requirements of heat dissipation and chip removal by cutting of the cutter, main shaft oil cooling is generally adopted, meanwhile, because of the characteristics of slender drill rod and poor rigidity of the cutter, a guide sleeve needs to be arranged at the front end of the cutter for guiding, the guide sleeve needs to be used for guiding and sealing oil simultaneously, important parts of the deep hole drill are formed together with the cutter, the cutter and the guide sleeve are matched in size and specification, the cutter is arranged on a main shaft cutter handle, the guide sleeve needs to be additionally provided with a supporting structure for fixing, and during machining, the center of the guide sleeve and the center of a main shaft need to.

The development of numerical control machine tools aims to seek high speed, high precision and high efficiency. With the increase of the cutting speed, the cutting time is continuously shortened, and the requirement on the cutter changing time is gradually increased; whether automatic tool changing can be realized becomes an important index of a numerical control machine tool, and the automatic tool changing technology is a technical method for finishing tool changing in the shortest time as far as possible by taking various factors of a machine tool into comprehensive consideration and mainly aiming at reducing invalid machining time.

The existing numerical control drilling machine tool mainly has a vertical type and a horizontal type, when in machining, the center of a guide sleeve and the center of a main shaft must be on the same axis, and due to the defects of the deep hole drilling machine tool in characteristics and design, the existing guide sleeve supporting structure (namely a guide sleeve bracket) often interferes with the tool changing space of the main shaft, so the production efficiency of the whole machine is reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a guider and numerical control drilling machine for numerical control drilling machine, it has solved current numerical control drilling machine because guide pin bushing support interferes the main shaft tool changing space and leads to unable automatic tool changing, therefore has reduced complete machine production efficiency's technical problem.

The utility model discloses a following technical scheme realizes:

the utility model provides a guider for numerical control drilling machine tool, including slide and guiding mechanism, guiding mechanism can be relative the slide slides along the fore-and-aft direction of lathe.

Further, guiding mechanism includes the bracket component, the bracket component including respectively sliding connection to two connecting portion on the slide, two connecting portion are along the left and right direction interval distribution of lathe, the bracket component is equipped with the mounting hole that is used for installing the guide pin bushing, two connecting portion are located respectively the both sides of mounting hole.

Furthermore, the guide device also comprises a guide sleeve detachably connected with the guide mechanism, and a grabbing part for the automatic guide sleeve replacing mechanism to grab is arranged on the outer side of the guide sleeve protruding out of the guide mechanism.

Further, guider still including install in be used for the drive on the slide the guiding mechanism is relative the actuating mechanism of slide motion, the slide include the protection casing and install in the base plate of protection casing bottom, guiding mechanism with base plate sliding connection, actuating mechanism install in on the base plate and its output with the bracket component is connected.

Furthermore, the bottom of the base plate is provided with a guide rail, and the bracket component is provided with a sliding groove matched with the guide rail; alternatively, the first and second electrodes may be,

the bottom of base plate is provided with the spout, be equipped with on the bracket component with spout matched with guide rail.

Furthermore, the number of the guide rails is two, and the two guide rails are respectively arranged at two ends of the bottom of the substrate;

the number of the sliding grooves is two, and the two sliding grooves are respectively arranged at two ends of the upper surface of the bracket component;

the number of the driving mechanisms is two, the two driving mechanisms are respectively arranged on the two outer side surfaces of the base plate, and the output ends of the two driving mechanisms are respectively connected with the two ends of the support component.

Further, the bracket component includes the support frame, two install respectively on two lateral surfaces of support frame and respectively with two the connecting portion and two that actuating mechanism's output is connected install respectively in the slider at the top both ends of support frame, two the spout sets up respectively in two on the slider.

Furthermore, the cross section of the protective cover is U-shaped or arc-shaped, the cross section of the substrate is basically consistent with that of the protective cover, and a sliding rail used for being in sliding connection with the spindle box is arranged on the side face of the protective cover.

The utility model also provides a numerical control drilling machine tool, include controller, stand, be located the workstation of stand one side, be located the headstock on the stand and be located first elevating system on the headstock, a serial communication port, the lathe still includes as above-mentioned guider, guider slidable mounting in on the headstock, first elevating system's output with guider connects, the controller with headstock, first elevating system and guider electric connection are in order to be used for controlling its stroke.

Further, the headstock include with stand sliding connection's slip table, install in main shaft on the slip table and install in on the slip table and drive main shaft pivoted spindle motor, guider and first elevating system all install in on the slip table, spindle motor with controller electric connection.

Further, the numerical control drilling machine tool further comprises a cutter and a unclamping cylinder electrically connected with the controller, wherein the unclamping cylinder is installed on the sliding table and passes through the main shaft and the cutter can be detachably connected.

Further, the numerical control drilling machine tool further comprises a second lifting mechanism which is arranged on the upright post and drives the sliding table to slide along the vertical direction, and the controller is electrically connected with the second lifting mechanism to control the stroke of the second lifting mechanism.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses well guiding mechanism can slide along the front and back (perhaps called Y axle) direction of lathe relatively, drives guiding mechanism promptly and removes to the protection casing one side of keeping away from the slide, so that the center of guiding mechanism's bracket component is skew the center of main shaft to make guider can cutter rebound relatively, so that follow-up automatic tool changing mechanism changes the cutter, thereby improved numerical control drilling machine's production efficiency.

Drawings

Fig. 1 is a schematic structural view of a guide device for a numerical control drilling machine tool according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a guide mechanism;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a cross-sectional view of the guide sleeve;

FIG. 6 is a cross-sectional view of the flange;

FIG. 7 is a schematic view of a guide sleeve holder;

FIG. 8 is a schematic structural diagram of a numerically controlled drilling machine.

In the figure: 1. a guide device; 10. a slide base; 11. a protective cover; 111. a slide rail; 112. an installation part; 12. a substrate; 121. a guide rail; 20. a guide mechanism; 21. a bracket assembly; 211. a slider; 2111. a chute; 212. a connecting portion; 213. a support frame; 2131. a guide sleeve bracket; 21311. a first assembly hole; 21312. a concave cavity; 21313. a first perforation; 21314. a second assembly hole; 21315. a base plate; 21316. a connecting plate; 21317. an extension plate; 2132. a flange; 21321. mounting holes; 21322. a first annular body; 21323. a second annular body; 21324. a holding body; 22. a guide sleeve; 221. a guide through hole; 2211. a first guide hole; 2212. a second guide hole; 222. a guide sleeve body; 223. a first body; 2231. a clamping groove; 2232. a first end face; 224. a second body; 2241. a grasping section; 2242. positioning a plane; 2243. a third end face; 2244. a fourth end face; 2245. an oil seal plane; 30. a drive mechanism; 40. a column; 50. a work table; 60. a main spindle box; 61. a sliding table; 62. a spindle motor; 70. a first lifting mechanism; 80. a knife beating cylinder; 90. and a second lifting mechanism.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

As shown in fig. 1-8, the present invention provides a guiding device for a numerical control drilling machine, comprising a slide base 10 and a guiding mechanism 20, wherein the guiding mechanism 20 is used for guiding the movement of a tool of the machine, and the guiding mechanism 20 can slide along the front and back (or called Y axis) direction of the machine relative to the slide base 10. In this embodiment, the left-right direction of the machine tool is the direction in which the table 50 of the numerical control drilling machine tool moves horizontally, which is also called the X-axis direction of the numerical control drilling machine tool; the front and back direction of the machine tool is the direction vertical to the workbench 50 in the horizontal plane, and is also called the Y-axis direction of the numerical control drilling machine tool; the vertical direction of the machine tool is the vertical direction, namely the extending direction of the upright column, which is also called the Z-axis direction of the numerical control drilling machine tool.

The guide mechanism 20 includes a bracket assembly 21 slidably connected to the slide carriage 10, the bracket assembly 21 includes two connecting portions 212, the two connecting portions 212 are respectively slidably connected to the slide carriage 10, the two connecting portions 212 are spaced apart along a left-right (or X-axis) direction of the machine tool, the bracket assembly 21 is provided with a mounting hole 21321 (see fig. 6) for mounting the guide sleeve 22, and the two connecting portions 212 are respectively located on two sides of the mounting hole 21321 so that the guide mechanism 20 can slide relative to the slide carriage 10 along a front-back direction of the machine tool.

The guiding device 1 further comprises a guide sleeve 22, the guide sleeve 22 is detachably connected with the support component 21, the guide sleeve 22 is installed in the installation hole 21321, a grabbing portion 2241 (see fig. 4) which is used for allowing the automatic guide sleeve replacing mechanism to grab is arranged on the outer side, protruding out of the support component 21, of the guide sleeve 22, the grabbing portion 2241 can comprise a concave portion or a convex portion, the concave portion or the convex portion is convenient for allowing the automatic guide sleeve replacing mechanism to grab, and therefore the automatic guide sleeve replacing mechanism can automatically replace the guide sleeve 22.

The guiding device 1 further comprises a driving mechanism 30, the driving mechanism 30 is installed on the sliding seat 10 and is used for driving the guiding mechanism 20 to move relative to the sliding seat 10, the bracket assembly 21 is installed on the sliding seat 10 in a sliding manner and is connected with an output end of the driving mechanism 30, the driving mechanism 30 can drive the guiding mechanism 20 to move towards one side far away from the sliding seat 10, so that the avoiding space convenient for detaching the guide sleeve 22 is formed, and the guide sleeve 22 installed on the bracket assembly 21 can be automatically replaced by the automatic guide sleeve replacing mechanism. The slide 10 includes a shield 11 and a substrate 12, the substrate 12 is mounted at the bottom of the shield 11, the guide mechanism 20 is slidably connected to the substrate 12, and the driving mechanism 30 is mounted on the substrate 12 so as to drive the carriage assembly 21 to move away from or close to the shield 11 on the slide 10.

Preferably, the bottom of the base plate 12 is provided with a guide rail 121, and the bracket assembly 21 is provided with a sliding slot 2111 matched with the guide rail 121; alternatively, the bottom of the base plate 12 is provided with a sliding slot 2111, and the bracket assembly 21 is provided with a guide rail 121 matched with the sliding slot 2111. Preferably, the number of the guide rails 121 is two, and the two guide rails 121 are respectively disposed at two ends of the bottom of the substrate 12; the number of the sliding grooves 2111 is two, and the two sliding grooves 2111 are respectively arranged at two ends of the upper surface of the bracket assembly 21; the number of the driving mechanisms 30 is two, the two driving mechanisms 30 are respectively installed on two outer side surfaces of the substrate 12, and output ends of the two driving mechanisms 30 are respectively connected with two ends of the bracket assembly 21, so that the bracket assembly 21 can run more stably on the substrate 12.

Preferably, the bracket assembly 21 includes a supporting frame 213, two connecting portions 212 and two sliding blocks 211, the two connecting portions 212 are respectively installed on two outer side surfaces of the supporting frame 213 and respectively connected to output ends of the two driving mechanisms 30, the two sliding blocks 211 are respectively installed at two ends of the top of the supporting frame 213, the two sliding slots 2111 are respectively disposed on the two sliding blocks 211, and when the sliding blocks 211 or the connecting portions 212 are worn, the replacement can be performed quickly.

The support frame 213 includes a guide sleeve support 2131 and a flange 2132, the guide sleeve support 2131 is preferably a U-shaped structure, a first assembling hole 21311 penetrating the guide sleeve support 2131 is formed in the middle of the guide sleeve support 2131, the flange 2132 is installed in the first assembling hole 21311, the installing hole 21321 is formed in the flange 2132, when the guide sleeve 22 and/or the flange 2132 need to be replaced due to excessive wear, the guide sleeve 22 and/or the flange 2132 can be directly replaced, the original guide sleeve support 2131 is reserved, and therefore maintenance cost is saved.

Referring to FIG. 1 and FIG. 2, fig. 3 and 7, in this embodiment, the guide sleeve support 2131 includes a bottom plate 21315, two connecting plates 21316, and two extending plates 21317, two ends of the connecting plate 21316 are respectively connected to the extending plates 21317 and the bottom plate 21315 and respectively form an included angle with the extending plates 21317 and the bottom plate 21315, two sliders 211 are respectively installed on upper surfaces of the two extending plates 21317, two connecting portions 212 are respectively installed on side surfaces of the two extending plates 21317, the first assembling hole 21311 is located on the bottom plate 21315, the connecting portion 212 is "L" shaped, the connecting portion 212 is connected to an outer side surface of the extending plate 21317, the connecting portion 212 is fixedly connected to an output end of the driving mechanism 30, the connecting portion 212 and the driving mechanism 30 are used in a pair, the driving mechanism 30 drives the connecting portion 212 to drive the support assembly 21 to reciprocate, the driving mechanism 30 in this embodiment is a thin cylinder, and the two sliders 211 are respectively installed on top wall.

Referring to fig. 1 and 8, in the present embodiment, the cross section of the shield 11 is U-shaped or arc-shaped, the cross section of the substrate 12 is substantially identical to the cross section of the shield 11, a slide rail 111 for slidably connecting with the headstock 60 is disposed on a side surface of the shield 11, a mounting portion 112 for connecting with an output end of the first elevating mechanism 70 is further disposed on the side surface of the shield 11, the first elevating mechanism 70 is mounted on the headstock 60, and the first elevating mechanism 70 drives the shield 11 to move up and down relative to the headstock 60 along the direction of the slide rail 111. Preferably, the guiding device for a nc drilling machine further includes a plurality of fasteners (not shown), preferably screws, referring to fig. 4, 6 and 7, the first assembling hole 21311 includes a cavity 21312 and a first through hole 21313, the cavity 21312 is recessed at the bottom of the guide sleeve support 2131, the first through hole 21313 penetrates from the bottom of the cavity 21312 to the top of the guide sleeve support 2131, the bottom of the cavity 21312 is provided with a plurality of second assembling holes 21314, the plurality of second assembling holes 21314 surround the outside of the first through hole 21313, the flange 2132 includes a first annular body 21322 and a second annular body 21323 axially connected with the first annular body 21322, the first annular body 21322 is connected with the first through hole 21313 in a matching manner, the second annular body 21323 is connected with the cavity 21312 in a matching manner, the outer diameter of the second annular body 21323 is larger than the outer diameter of the first annular body 21322, the second annular body 21323 is provided with a plurality of second through holes (not shown), each fastener penetrates through each second through hole and then is in threaded connection with each second assembling hole 21314, and therefore the flange 2132 is fixed on the guide sleeve support 2131.

Referring to fig. 6, in the present embodiment, the mounting hole 21321 sequentially penetrates through the first annular body 21322 and the second annular body 21323, the flange 2132 further includes a plurality of elastic clamping bodies 21324, the first body 223 on the guide sleeve 22 extends into the mounting hole 21321, the outer side surface of the first body 223 is provided with a clamping groove 2231, the cross section of the clamping groove 2231 is arc-shaped, L-shaped, V-shaped, or U-shaped, in the present embodiment, the clamping groove 2231 is preferably an arc-shaped groove, the first annular body 21322 of the flange 2132 is provided with a plurality of third assembling holes (not shown in the drawings) corresponding to the positions of the clamping groove 2231, the plurality of clamping bodies 21324 are respectively mounted in the third assembling holes, and the front ends thereof can extend into the mounting hole 21321 of the flange 2132 until abutting against the clamping groove 2231 on the guide sleeve 22, the clamping bodies 21324 are preferably bead screws, in the present invention, the flange 2132 utilizes the bead screws to position and limit the clamping groove 2231, the guide sleeve 22 is ensured not to fall off after being installed, the clamping bodies 21324 can be rapidly separated from the clamping grooves 2231 when needed, the number of the clamping bodies 21324 in the embodiment is four, the four clamping bodies 21324 are circular and are installed on the flange 2132 at equal intervals and are clamped in the clamping grooves 2231, and as shown in fig. 4, the arrangement can balance the stress of the guide sleeve 22, so that the guide sleeve 22 can be abutted to a workpiece to be machined better.

The guide sleeve 22 is made of a metal material such as tungsten steel, referring to fig. 4 and 5, the guide sleeve 22 includes a guide sleeve body 222 and a guide through hole 221, the guide sleeve body 222 includes a first body 223 and a second body 224, the first body 223 is inserted into and connected with the bracket assembly 21, the second body 224 is axially connected with the first body 223 and protrudes outside a mounting hole 21321 on the bracket assembly 21, the guide through hole 221 sequentially penetrates through the first body 223 and the second body 224 and is used for a cutter (not marked in the figure) of the numerical control drilling machine to penetrate, a grabbing portion 2241 is formed on the outer surface of the second body 224 and includes an annular groove formed on the outer side surface of the second body 224, the first body 223 on the guide sleeve 22 is preferably in a circular truncated cone shape, the first body 223 has a first end surface 2232 and a second end surface (not marked in the figure), the second end surface is spaced away from the first end surface 2232, the second end surface is connected with the second body 224, the outer diameter of the outer side of the first body 223 gradually decreases from the second end to the first end 2232, and the inner side of the mounting hole 21321 is matched with the outer side of the first body 223, so that the first body 223 on the guide sleeve 22 can be quickly installed into the mounting hole 21321 of the flange 2132 from the bottom surface of the flange 2132. When the first body 223 is installed into the installation hole 21321 of the flange 2132 from the bottom surface of the flange 2132, the bead screw can exit from the installation hole 21321 under the extrusion action of the first body 223, and when the retaining groove 2231 on the first body 223 is opposite to the bead screw, the bead screw can be retained in the retaining groove 2231 of the guide sleeve 22 under the action of elastic force.

The second body 224 on the guide sleeve 22 is preferably cylindrical, the second body 224 has a third end surface 2243 and a fourth end surface 2244, the fourth end surface 2244 and the third end surface 2243 are arranged at an interval back to each other, the third end surface 2243 and the second end surface are coplanar, an annular surface of the third end surface 2243, which is located on the outer side of the second end surface, forms a positioning plane 2242, an annular oil sealing plane 2245 is arranged on the fourth end surface 2244, and when the numerical control drilling machine performs drilling, the oil sealing plane 2245 is tightly attached to the surface of a workpiece to be machined so as to prevent the cutting fluid from splashing.

The guide through hole 221 includes a first guide hole 2211 and a second guide hole 2212, the first guide hole 2211 extends from the first end surface 2232 to the direction of the second body 224, the second guide hole 2212 extends from the fourth end surface 2244 to the direction of the first body 223 and is communicated with the first guide hole 2211, and the inner diameter of the first guide hole 2211 is gradually reduced from the first end surface 2232 to the second guide hole 2212, so that the cutter can conveniently penetrate through the guide sleeve 22 and discharge scraps. The second guide hole 2212 has a diameter slightly larger than that of the counterpart tool so that the tool can freely rotate therein, and the second guide hole 2212 extends into the first body 223.

Please refer to fig. 8, the present invention further discloses a numerical control drilling machine tool, which comprises a controller (not shown in the figure), a column 40, a workbench 50 located on one side of the column 40, a spindle box 60 located on the column 40, and a first lifting mechanism 70 located on the spindle box 60, wherein the machine tool further comprises the above guiding device 1, the guiding device 1 is slidably mounted on the spindle box 60, an output end of the first lifting mechanism 70 is connected with the guiding device 1, the controller is electrically connected with the spindle box 60, the first lifting mechanism 70 and the guiding device 1 to control the stroke thereof, the controller can be disposed in the spindle box 60 or in the workbench 50, or can be disposed separately, and the first lifting mechanism 70 in this embodiment is preferably a hydraulic cylinder.

Preferably, the main spindle box 60 includes a sliding table 61, a main spindle (not shown in the figure), and a main spindle motor 62, the sliding table 61 is slidably connected to the column 40, the main spindle is mounted on the sliding table 61, the main spindle motor 62 is mounted on the sliding table 61 and drives the main spindle to rotate through a synchronous belt transmission, the guiding device 1 and the first lifting mechanism 70 are both mounted on the sliding table 61, and the main spindle motor 62 is electrically connected to the controller.

The numerical control drilling machine tool further comprises a cutter and a cutter beating cylinder 80, the cutter beating cylinder 80 is electrically connected with the controller, and the cutter beating cylinder 80 is installed on the sliding table 61 and detachably connected with the cutter through the main shaft so as to detach the cutter.

Preferably, the numerical control drilling machine further includes a second lifting mechanism 90 installed on the column 40 and driving the sliding table 61 to slide vertically, the controller is electrically connected to the second lifting mechanism 90 for controlling the stroke thereof, and the second lifting mechanism 90 drives the spindle box 60 to slide up and down to drive the rotating tool to move up and down, in this embodiment, the second lifting mechanism 90 is preferably a combination of a motor and a ball screw transmission pair.

The following working principle of the numerical control drilling machine tool for drilling is briefly described as follows: after the tool and the guide sleeve 22 are both mounted on the machine tool, the spindle motor 62 is firstly started and drives the tool to rotate through the spindle, then the second lifting mechanism 90 drives the spindle box 60 and the guide device 1 to move downwards until the tool is positioned above a workpiece to be machined, then the first lifting mechanism 70 drives the guide device 1 to move downwards until the guide sleeve 22 abuts against the surface of the workpiece to be machined, then the second lifting mechanism 90 drives the rotating tool to move downwards to drill the workpiece to be machined, because the first lifting mechanism 70 is a hydraulic cylinder, in the descending process of the tool, an oil sealing plane 2245 at the bottom of the guide sleeve 22 abuts against the surface of the workpiece to prevent cutting fluid from splashing, after the drilling process is completed, the spindle motor 62 rotates reversely, the second lifting mechanism 90 drives the reversed tool and the guide device 1 to move upwards until the tool and the workpiece are separated, and the spindle motor 62 stops running, the first and second elevating

mechanisms

70 and 90 are restored to the initial positions.

A method of changing a tool of a numerically controlled drilling machine tool, the numerically controlled drilling machine tool comprising a column 40, a table 50, a headstock 60 and a guide 1, the headstock 60 comprising a spindle, the guide 1 comprising a slide 10 and a carriage assembly 21 slidably mounted on the slide 10 for mounting a guide bush 22 therein, the method comprising the steps of:

the driving mechanism 30 drives the carriage assembly 21 to slide relative to the slide base along the front-back direction of the machine tool, so that the center of the carriage assembly 21 deviates from the center of the spindle;

the first lifting mechanism 70 drives the guide device 1 to move upwards relative to the cutter; and

and the cutter is replaced by an automatic cutter changing mechanism.

The method further comprises the following steps:

before the driving mechanism 30 drives the carriage assembly 21 to slide relative to the slide 10 in the forward and backward directions of the machine tool,

the spindle motor 62 drives the spindle box 60 and/or the first lifting mechanism 70 drives the guide device 1 to move upwards in the direction away from the workbench 50, so that the spindle box 60 and the guide device 1 are reset; and

the first elevating mechanism 70 drives the guide device 1 to move downward relative to the tool of the numerically controlled drilling machine so that the carriage assembly 21 is separated from the tool.

The method for replacing the cutter of the numerical control drilling machine further comprises the following steps:

the guide 22 is replaced by the automatic guide replacing mechanism after the first elevating mechanism 70 drives the guide device 1 to move downwards relative to the tool of the numerical control drilling machine and before the driving mechanism 30 drives the carriage assembly 21 to slide relative to the slide carriage 10 in the front-back direction of the machine.

The guide sleeve 22 includes the protruding portion 2241 that catches that exposes in the bracket component 21 outside, and the guide sleeve 22 is changed to automatic guide sleeve changing mechanism specifically includes that the gripping portion 2241 that presss from both sides the protruding portion that catches that exposes in the bracket component 21 outside of guide sleeve 22.

The method further comprises the following steps:

after the automatic tool changing mechanism changes the tool, the first lifting mechanism 70 drives the guide device 1 to move downwards relative to the tool until the top surface of the guide sleeve 22 is lower than the bottom surface of the tool;

the driving mechanism 30 drives the bracket assembly 21 to slide relative to the slide carriage 10 along the front-back direction of the machine tool, so that the center of the guide sleeve 22 and the center of the tool are located on the same axis;

the driving guide device moves upwards relative to the cutter, so that the cutter passes through the guide sleeve.

The method for replacing the cutter of the numerical control drilling machine further comprises the following steps: the driving mechanism 30 replaces the guide bush 22 by an automatic guide bush replacement mechanism after the driving carriage assembly 21 slides in the front-rear direction of the machine tool with respect to the slide 10 so that the center of the guide bush 22 and the center of the tool are on the same axis and before the driving guide 1 moves upward with respect to the tool.

It will be understood that the aforementioned step of replacing the guide sleeve 22 by the automatic guide sleeve replacing mechanism may also occur after the driving mechanism 30 drives the carriage assembly 21 to slide relative to the slide 10 in the front-rear direction of the machine tool so that the center of the guide sleeve 22 is on the same axis as the center of the tool and before the first lifting mechanism 70 drives the guide device 1 to move upward relative to the tool.

To sum up, the utility model discloses well guiding mechanism 20 can slide 10 around along the lathe (or called Y axle) the direction slide relatively, drives guiding mechanism 20 promptly and removes to 11 one sides of protection casing of keeping away from slide 10, so that the center of the skew main shaft in bracket component 21 of guiding mechanism 20 to make guider 1 can the relative cutter upwards remove, so that follow-up automatic tool changing mechanism changes the cutter, thereby improved the production efficiency of numerical control drilling lathe.

It can be understood that the fixed connection in the present invention can be understood as a fixed connection, including a detachable fixed connection and a non-detachable fixed connection, which can be selected according to design requirements; the utility model discloses well fixed mounting, including detachable fixed mounting and non-detachable fixed mounting, can select according to the design needs.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides a guider for numerical control drilling machine tool, guider be used for slidable mounting in on the headstock of numerical control drilling machine tool, guider includes slide and guiding mechanism, its characterized in that: guiding mechanism includes the bracket component, the bracket component including respectively sliding connection to two connecting portion on the slide, guiding mechanism passes through two connecting portion can be relative the slide slides along the fore-and-aft direction of lathe.

2. The guide device for a numerical control drilling machine according to claim 1, characterized in that: the two connecting parts are distributed at intervals along the left and right directions of the machine tool, the support component is provided with mounting holes for mounting the guide sleeves, and the two connecting parts are respectively positioned on two sides of the mounting holes.

3. The guide device for a numerical control drilling machine according to claim 1, characterized in that: the guide device also comprises a guide sleeve detachably connected with the guide mechanism, and a grabbing part for the automatic guide sleeve replacing mechanism to grab is arranged on the outer side of the guide sleeve protruding out of the guide mechanism.

4. The guide device for a numerical control drilling machine according to claim 2, characterized in that: the guiding device is characterized in that the guiding device further comprises a driving mechanism which is arranged on the sliding seat and used for driving the guiding mechanism to be relative to the sliding seat, the sliding seat comprises a protective cover and a substrate which is arranged at the bottom of the protective cover, the guiding mechanism is connected with the substrate in a sliding manner, and the driving mechanism is arranged on the substrate and the output end of the driving mechanism is connected with the support component.

5. The guide device for a numerical control drilling machine according to claim 4, characterized in that: the bottom of the base plate is provided with a guide rail, and the bracket component is provided with a sliding groove matched with the guide rail; alternatively, the first and second electrodes may be,

6. The guide device for a numerical control drilling machine according to claim 5, characterized in that: the number of the guide rails is two, and the two guide rails are respectively arranged at two ends of the bottom of the substrate;

7. The guide device for a numerical control drilling machine according to claim 6, characterized in that: the bracket component comprises a support frame and two sliding blocks, wherein the two sliding blocks are respectively arranged on two outer side surfaces of the support frame and are respectively connected with the output ends of the two driving mechanisms, the connecting parts and the two sliding blocks are respectively arranged at two ends of the top of the support frame, and the two sliding grooves are respectively arranged on the two sliding blocks.

8. The guide device for a numerical control drilling machine according to claim 4, characterized in that: the cross section of the protective cover is U-shaped or arc-shaped, the cross section of the substrate is basically consistent with that of the protective cover, and a sliding rail used for being in sliding connection with the spindle box is arranged on the side face of the protective cover.

9. A numerical control drilling machine tool comprising a controller, a column, a table on one side of the column, a headstock on the column, and a first elevating mechanism on the headstock, characterized in that the machine tool further comprises a guide device according to any one of claims 1 to 8, the guide device being slidably mounted on the headstock, an output end of the first elevating mechanism being connected with the guide device, the controller being electrically connected with the headstock, the first elevating mechanism, and the guide device for controlling a stroke thereof.

10. The numerically controlled drilling machine according to claim 9, wherein: the spindle box comprises a sliding table, a spindle and a spindle motor, the sliding table is connected with the stand column in a sliding mode, the spindle is installed on the sliding table, the spindle motor is installed on the sliding table and drives the spindle to rotate, the guide device and the first lifting mechanism are installed on the sliding table, and the spindle motor is electrically connected with the controller.

11. The numerically controlled drilling machine according to claim 10, wherein: the numerical control drilling machine tool further comprises a cutter and a cutter beating cylinder electrically connected with the controller, and the cutter beating cylinder is installed on the sliding table and passes through the main shaft and the cutter can be detachably connected.

12. The numerically controlled drilling machine according to claim 11, wherein: the numerical control drilling machine tool further comprises a second lifting mechanism which is arranged on the stand column and drives the sliding table to slide along the vertical direction, and the controller is electrically connected with the second lifting mechanism to control the stroke of the second lifting mechanism.