CN214024708U - Automatic tool changer and numerical control machine tool - Google Patents

Abstract

The utility model provides an automatic tool changer and digit control machine tool, this digit control machine tool include the stand and mobile set up in the processing main shaft of stand, this automatic tool changer includes: a bracket mounted on the upright post; a tool magazine, the tool magazine comprising: the cutter head is rotatably arranged on the bracket, and a plurality of cutter claws for storing cutters are arranged on the periphery of the cutter head; the cutter driving piece is provided with a bracket and is used for driving the cutter to rotate; tool changing mechanism, tool changing mechanism includes: the tool changing arm is rotatably arranged on the bracket, and two ends of the tool changing arm are respectively provided with a clamping piece for taking and placing a tool; the cutter arm driving part is arranged on the bracket and used for driving the cutter changing arm to rotate; the protective cover is connected with the support, covers at least one part of the support, the tool magazine and the tool arm driving piece and is provided with a tool changing port; when the automatic tool changer is in a tool changing state, one clamping piece at the tool changing opening corresponds to the tool claw, and the other clamping piece corresponds to the machining spindle. Therefore, the tool attachment angle can be kept stable.

Description

Automatic tool changer and numerical control machine tool

Technical Field

The utility model relates to a machining equipment field, concretely relates to automatic tool changing device and digit control machine tool.

Background

Along with the development of the numerical control technology of the machine tool, more and more numerical control machines are provided with automatic tool changing devices. The automatic tool changer can be used for carrying out processes of driving, milling, drilling, grinding and the like on the same product on the same equipment, so that the processing efficiency is greatly improved.

The tool magazine is one of important functional parts in the digit control machine tool, and the tool magazine is used for bearing the required cutter of clamping man-hour, makes things convenient for the lathe to carry out tool changing operation when processing the product. However, when the numerical control machine tool processes a workpiece, contaminants such as cutting fluid, dust, and chips are easily splashed onto the tool magazine, so that the installation angle of the tool stored in the tool magazine may be changed, the tool changing operation is difficult to complete, and the processing efficiency is affected.

Disclosure of Invention

Based on the problem that exists among the above-mentioned prior art, the utility model aims to provide an automatic tool changing device, vertical machining center to stabilize the installation angle of cutter.

An embodiment of the utility model provides an automatic tool changing device for digit control machine tool, this digit control machine tool include stand and mobile set up in the processing main shaft of stand, include: the bracket is arranged on the upright post; a tool magazine, the tool magazine comprising: the cutter head is rotatably arranged on the bracket, and a plurality of cutter claws for storing cutters are arranged on the periphery of the cutter head; the cutter driving piece is mounted on the bracket and used for driving the cutter to rotate; a tool changing mechanism, the tool changing mechanism comprising: the tool changing arm is rotatably arranged on the bracket, and two ends of the tool changing arm are respectively provided with a clamping piece for taking and placing a tool; the cutter arm driving part is arranged on the bracket and used for driving the cutter changing arm to rotate; the protective cover is connected to the support, covers at least one part of the support, the tool magazine and the tool arm driving piece and is provided with a tool changing port; when the automatic tool changer is in a tool changing state, one clamping piece at the tool changing opening corresponds to the tool claw, and the other clamping piece corresponds to the machining spindle.

Furthermore, the automatic tool changer also comprises a support piece, and the protective cover is connected to the support through the support piece.

Further, the shield includes: an installation part; the cover body, through the installation department with support piece connects, the inside of the cover body is for being used for the holding part of support the tool magazine with the holding cavity of tool arm driving piece, wherein, trade the edge of a knife set up in the cover body.

Further, the support piece is located inside the cover body, and the mounting portion is arranged on the inner wall of the cover body.

Further, the knife changing edge and the mounting part are arranged oppositely.

Furthermore, the supporting piece is annular and is positioned between the cutter head and the bracket.

Further, the cover includes: a first half cover; the second half cover and the first half cover are correspondingly and respectively arranged on two opposite surfaces of the supporting piece; the first half cover is provided with a notch for the output end of the knife arm driving piece to pass through, and the second half cover is provided with the knife changing port.

Further, the first main board is provided with a first panel and a second panel which are parallel to each other and are respectively connected to two opposite sides of the first main board; a third panel and a fourth panel which are parallel to each other and are connected with the second panel and the first main board, wherein the third panel is also connected with the first panel, and the fourth panel is provided with the notch; wherein the first panel, the second panel and the third panel are each connected to a side of the support; a through opening for the support to pass through is formed at the joint of the first main plate, the first panel and the fourth panel; the first panel and the first main board are arranged at a first angle, and the first panel and the third panel are arranged at a second angle; the third panel with first mainboard is third angle setting.

Further, the first angle, the second angle and the third angle are right angles.

Further, the second half cover comprises: the second main board is provided with a through hole for penetrating the bracket and is parallel to the first main board; the first side plate and the second side plate which are parallel to each other are respectively connected to two opposite sides of the second main plate; the third side plate and the fourth side plate which are parallel to each other are connected with the first side plate, the second side plate and the second main plate; the fourth panel is provided with the knife changing edge; the first side plate, the second side plate and the third side plate are connected with the other side face of the supporting piece, the first side plate is identical to the plane extending direction of the first panel, the second side plate is identical to the plane extending direction of the second panel, the third side plate is identical to the plane extending direction of the third panel, and the fourth side plate is identical to the plane extending direction of the fourth panel.

Furthermore, the inner wall of the cover body extends towards the center of the cover body to form the mounting part.

Furthermore, the cutter claw is movably connected with the cutter head; the tool magazine further comprises a tool claw driving piece which is arranged on the support and used for driving the tool claw to rotate and move along the radial direction of the cutter head when the tool claw moves to the tool changing opening; when the automatic tool changer is in a normal state, the tool claw is approximately perpendicular to the cutter disc, is close to the rotation center of the cutter disc and is far away from the tool changing port; under the tool changing state, the tool claw is approximately parallel to the cutter head, is far away from the rotation center of the cutter head and is close to the tool changing port.

Further, the knife claw driving piece is an air cylinder.

Furthermore, the cutter head driving piece and the cutter arm driving piece are both motors; the cutter head driving piece is connected with the cutter head through a cutter head driving piece; the knife arm driving part is connected with the knife changing arm through the knife arm driving part.

The embodiment of the utility model provides a digit control machine tool is still provided, include: a bed body; the upright post is arranged on the lathe bed; the workbench is movably arranged on the lathe bed along the X-axis direction and/or the Y-axis direction; a machining spindle movably mounted on the column in a Z-axis direction; the automatic tool changer is arranged on the upright post.

Compared with the prior art, the beneficial effects of the utility model reside in that, cover tool magazine and tool changing mechanism through a protection casing that is equipped with the edge of a knife that trades for tool magazine and tool changing mechanism can be exempted from to be infected by pollutants such as cutting fluid, dust, smear metal, thereby stabilize the installation angle of the cutter in the tool magazine, can not change, guarantee the smooth completion of tool changing action, have improved machining efficiency.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of an automatic tool changer;

FIG. 2 is a perspective view of FIG. 1 from perspective A;

FIG. 3 is a bottom view of FIG. 1;

FIG. 4 is a perspective view of an embodiment of an automatic tool changer from a back perspective;

FIG. 5 is a schematic view of a front view perspective structure of an embodiment of an automatic tool changer;

FIG. 6 is an exploded view of the shield;

FIG. 7 is an exploded view of the first half cap;

fig. 8 is an exploded view of the second half of the cover.

The figure includes:

tool magazine 1

Cutter head 11

Knife claw 111

Cutter head driving piece 12

Disk fastener 13

Tool changing mechanism 2

Tool changing arm 21

Tool arm drive 22

Tool arm transmission member 23

Protective cover 3

Knife changing edge 31

Mounting portion 32

Cover 33

First half cap 331

First main board 3310

First panel 3311

Second panel 3312

Third panel 3313

Fourth panel 3314

Second half cap 332

Second main board 3320

First side plate 3321

Second side plate 3322

Third side plate 3323

Fourth side plate 3324

Support 4

A support 5.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from the embodiments described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention, and it is therefore intended that the invention not be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "mounted to" another element, it can be directly mounted to the other element or intervening elements may also be present.

Furthermore, it should be understood that all directional indicators (such as upper, lower, left, right, middle … …) in the embodiments are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed correspondingly; the terms "first," "second," and the like are used herein to distinguish one structural element from another. These terms are merely for convenience of description and simplicity of description, and are not to be construed as limiting the present invention.

Referring to fig. 1 to 8, the nc machine tool may be a vertical machining center or a horizontal machining center, and in this embodiment, the nc machine tool is a vertical machining center, and more specifically, a column machining center, which includes a bed mainly for bearing, a column fixed to a rear side of an upper surface of the bed, a table movably disposed to a front side of the upper surface of the bed in an X-axis direction (lateral direction) and/or a Y-axis direction (longitudinal direction), a machining spindle movably disposed to a front side of an upper portion of the column in a Y-axis direction (vertical direction), and an automatic tool changer fixed to a left side or a right side of the upper portion of the column.

The automatic tool changer comprises a support 4, a tool magazine 1, a tool changing mechanism 2 and a protective cover 3. Support 4 installs on the stand, and is concrete, can make 4 one ends of support install the left surface or the right flank on stand upper portion through fasteners such as screw, specifically install and carry out the rational selection at the left surface or the right flank according to the spatial arrangement of each subassembly of digit control machine tool.

The tool magazine 1 is arranged on the support 4, the tool magazine 1 comprises a cutter disc 11 and a cutter disc driving member 12, the cutter disc 11 is rotatably arranged on the support 4, and a plurality of tool claws 111 for storing tools are arranged on the periphery of the cutter disc 11. Specifically, the cutter head 11 is disc-shaped and is mounted on the front surface of the bracket 4 through a disc-shaped fixing piece 13, wherein the cutter head 11 and the disc-shaped fixing piece 13 are concentrically arranged, and the cutter head 11 can rotate relative to the disc-shaped fixing piece 13; the cutter driving piece 12 is a driving motor and is installed on the upper side of the support 4, the output end of the driving piece is connected with the cutter 11 through a cutter transmission piece, so that the cutter 11 can be driven to rotate around the circle center of the cutter, the cutter claw 111 can make circular motion along with the rotation of the cutter 11, the cutter transmission piece is of a worm and gear structure, a worm and gear part is fixed at the output end of the cutter driving piece 12 and rotates along with the worm and gear part, and the worm runs through the disk fixing piece 13 and then is connected with the back center of the cutter 11, so that the cutter 11 can be driven to rotate when the servo motor rotates.

Further, the plurality of cutter claws 111 are evenly distributed on the front surface of the cutter head 11 in the circumferential direction. Each claw 111 is movably connected with the cutter head 11 and moves through a claw driving member 112 mounted on the bracket 4, and when the claw 111 to be subjected to tool changing moves to a position corresponding to the tool changing opening 31, the claw 111 is driven to rotate from a vertical state relative to the front surface of the cutter head 11 to a parallel state relative to the front surface of the cutter head 11 and to move along the radial direction of the cutter head 11. In a normal state without tool changing, the axis of the tool claw 111 is approximately perpendicular to the front face of the cutter head 11, is close to the rotation center of the cutter head 11, and is far away from the tool changing edge 31; in the tool exchange state in which the changing operation is performed, the axis of the tool claw 111 is substantially parallel to the front surface of the cutter head 11, is close to the changing edge 31, and is distant from the rotation center of the cutter head 11. The jaw driving member 112 may be, for example, an air cylinder, or a cylinder or a push-type member of an electric or other type, and is mounted on the upper side of the frame 4 through a fixing plate.

The tool changing mechanism 2 is provided on the holder 4, and the tool changing mechanism 2 includes a tool changing arm 21 and a tool arm driving member 22. The tool changer arm 21 is rotatably disposed on the bracket 4, and a tool arm driving member 22 is mounted on the bracket 4 for driving the tool changer arm 21 to rotate. Specifically, the knife arm driving member 22 is a servo motor, and is mounted on the front side of the support 4 through a knife arm driving member 23, the knife arm driving member may be a two-stage or more gear shaft reducer, and is mounted on the back side of the support 4, the knife arm driving member 22 is vertically mounted on the upper side of the gear shaft reducer, and the output end is connected with the high-speed shaft of the gear shaft reducer to provide power. The tool changing arm 21 is in a long block shape, the center of the tool changing arm is connected with the low-speed shaft of the gear shaft reducer, and clamping pieces for taking and placing tools are arranged at the two ends of the tool changing arm.

And a shield 3 connected to the holder 4, covering at least a part of the holder 4, the magazine 1 and the arm driver 22, and provided with a tool changing opening 31 for transferring a tool between the claw 111 and the holder. The automatic tool changer also has a support 5, by means of which support 5 the protective hood 3 is connected to the holder 4.

The shield 3 includes: the tool changer comprises a mounting part 32 and a cover body 33, wherein the cover body 33 is connected with the support part 5 through the mounting part 32, and the inside of the cover body 33 is a containing cavity for containing a part of the bracket 4, the tool magazine 1 and the tool arm driving part 22, and the cover body 33 is provided with the tool changing opening 31.

Further, the supporting member 5 is located inside the cover 33, the mounting portion 32 is disposed on the inner wall of the cover 33, and the tool changing opening 31 and the mounting portion 32 are disposed oppositely. Further between the cutterhead 11 and the front face of the carriage 4. Illustratively, the support member 5 is annular and is mounted to a fixed surface of the cutter head 11 adjacent to the cutter head 11 by fasteners such as screws. The supporting member 5 is preferably a square ring having at least two side edges connected to the inner wall of the cover 33, the tool changing opening 31 is provided at the bottom of any surface of the cover 33 not connected to the supporting member 5, and the upper inner wall of the cover 33 extends downward to form the mounting portion 32. Of course, in other embodiments, the mounting portion 32 may be a separate component, such as being connected to the cover 33 by fasteners, such as screws. The supporting member 5 and the mounting portion 32 may be both disposed outside the cover 33, for example, the supporting member 5 is directly mounted on the bracket 4, and two parts of the mounting portion 32 are connected to the supporting member 5 and the cover 33, respectively.

Illustratively, the enclosure 33 includes: a first half cap 331 and a second half cap 332; the first half cover 331 and the second half cover 332 are correspondingly and respectively mounted on two opposite surfaces of the support 5, wherein the first half cover 331 is provided with a notch for the output end of the knife arm driving member 22 to pass through. The second cover half 332 is provided with a tool changing port 31.

The first half cap 331 includes a first main board 3310, a first panel 3311, a second panel 3312, a third panel 3313, and a fourth panel 3314. The first panel 3311 and the second panel 3312 are parallel to each other and connected to opposite sides of the first main board 3310, respectively. The third panel 3313 and the fourth panel 3314 are parallel to each other. The third panel 3313 is connected to the first main board 3310, the first panel 3311, and the second panel 3312. The fourth panel 3314 is connected to the first main board 3310 and the second panel 3312. The first main board 3310, the first panel 3311 and the fourth panel 3314 enclose to form a through opening for the support 4 to pass through. The fourth panel 3314 is provided with a notch through which the output end of the blade arm driving member 22 passes. The first panel 3311, the second panel 3312, the third panel 3313, and the fourth panel 3314 are connected to one side of the support member 5. The first panel 3311 and the first main panel 3310 are disposed at a first angle, and the first panel 3311 and the third panel 3313 are disposed at a second angle; the third board 3313 and the first board 3310 are disposed at a third angle.

As shown in fig. 7, the first main board 3310 is divided into a main body and a side panel connected to the main body at an obtuse angle at one side thereof, and the first panel 3311 is connected to the side panel and disposed perpendicular to the main body at an angle. The third board 3313 and the first board 3310 are disposed at a vertical angle, and the third board 3313 and the first board 3311 are disposed at a vertical angle. The third panel 3313 is divided into a horizontal portion to be engaged with the first body 3310 and a vertical portion, and the horizontal portion is divided into two halves to be coupled with a fastening member such as a screw.

The second half cap 332 includes: the second main board 3320, the first side board 3321, the second side board 3322, the third side board 3323 and the fourth side board 3324, wherein the second main board 3320 is provided with a through hole for passing through the bracket 4, and is parallel to the first main board 3310. The first side plate 3321 and the second side plate 3322 are parallel to each other and are respectively connected to two opposite sides of the second main plate 3320; the third side plate 3323 and the fourth side plate 3324 are parallel to each other, and are connected to the first side plate 3321, the second side plate 3322 and the second main plate 3320, and the third side plate 3323 is parallel to the third plate 3313. The fourth side plate 3324 is provided with the tool changing port 31.

As shown in fig. 8, the first side plate 3321, the second side plate 3322 and the third side plate 3323 are all connected to the other side surface of the supporting member 5, and the first side plate 3321 and the first panel 3311 have the same plane extending direction, the second side plate 3322 and the second panel 3312 have the same plane extending direction, the third side plate 3323 and the third panel 3313 have the same plane extending direction, and the fourth side plate 3324 and the fourth panel 3314 have the same plane extending direction.

Referring to fig. 6 to 8, the first panel 3311 and the first side plate 3321 are respectively connected to left and right sides of the front portion of the supporting member 5 along a vertical plane direction. The second panel 3312 and the second side panel 3322 are respectively connected to the left and right sides of the rear portion of the supporter 5 in the vertical plane direction. The third panel 3313 and the third panel 3323 are respectively connected to the left and right sides of the top of the supporter 5 in the horizontal plane direction. The fourth panel 3314 is connected to the bottom of the first main panel 3310 along a horizontal plane, the fourth panel 3324 is connected to the bottom of the second main panel 3320 along a horizontal plane, and the other side of the fourth panel 3314 is connected to the other side of the fourth panel 3324 along a horizontal plane, wherein the tool changing opening 31 is formed in the middle of the fourth panel 3324, the tool changing opening 31 is rectangular, and the length extension direction of the tool changing opening 31 is perpendicular to the second main panel 3320.

Through above automatic tool changer, can make tool magazine 1, tool changing mechanism 2 can avoid infecting of pollutant when numerically-controlled machine tool adds man-hour, guarantee the installation angle of cutter on tool magazine 1, stabilize the precision of each part and prolong the life of each part for the tool changing action normally goes on, thereby guarantees the normal clear of processing, has improved machining efficiency.

The tool changing operation process of the machining spindle is briefly described as follows:

when a tool needs to be replaced, firstly, the machining spindle is stopped, the cutter head driving piece 12 drives the cutter head 11 to rotate, the cutter claw 111 moves to a position corresponding to the tool changing opening 31, and the cutter claw driving piece 112 drives the cutter claw 111 to rotate, so that the axis of the cutter claw 111 is approximately parallel to the front side surface of the cutter head 11 (namely, the rotation center of the cutter head 11 points to the direction of the tool changing opening 31).

Second, the tool arm driving member 22 drives the tool changing arm 21 to rotate so that one clamping member corresponds to the tool claw 111 at the tool changing opening 31 and the other clamping member corresponds to the processing spindle.

Third, the jaw driver 112 drives the jaw 111 to move in a radial direction (vertically downward as shown) of the changing point 31 along the rotation center of the cutter head 11 to place a tool removed from the machining spindle in the jaw 111 or place a tool in the jaw 111 in the holder.

The machining spindle moves vertically downward to place the tool removed from the tool claw 111 in the machining spindle or to place the tool in the machining spindle in another holder.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

What has just been said is the preferred embodiment of the present invention, mainly explains the basic principle and advantages of the present invention, and the present invention is not limited by the above-mentioned embodiment. The described embodiments are only some embodiments of the invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Claims (15)

1. The utility model provides an automatic tool changing device for digit control machine tool, this digit control machine tool include the stand and mobile set up in the processing main shaft of stand, its characterized in that includes:

the bracket is arranged on the upright post;

a tool magazine, the tool magazine comprising:

the cutter head is rotatably arranged on the bracket, and a plurality of cutter claws for storing cutters are arranged on the periphery of the cutter head;

the cutter driving piece is mounted on the bracket and used for driving the cutter to rotate;

a tool changing mechanism, the tool changing mechanism comprising:

the tool changing arm is rotatably arranged on the bracket, and two ends of the tool changing arm are respectively provided with a clamping piece for taking and placing a tool;

the cutter arm driving part is arranged on the bracket and used for driving the cutter changing arm to rotate;

the protective cover is connected to the support, covers at least one part of the support, the tool magazine and the tool arm driving piece and is provided with a tool changing port;

when the automatic tool changer is in a tool changing state, one clamping piece at the tool changing opening corresponds to the tool claw, and the other clamping piece corresponds to the machining spindle.

2. The automatic tool changer of claim 1, further comprising a support by which the shield is connected to the bracket.

3. The automatic tool changer of claim 2, wherein the protective cover comprises:

an installation part;

the cover body, through the installation department with support piece connects, the inside of the cover body is for being used for the holding part of support the tool magazine with the holding cavity of tool arm driving piece, wherein, trade the edge of a knife set up in the cover body.

4. The automatic tool changer of claim 3, wherein the support member is located inside the cover body, and the mounting portion is provided on an inner wall of the cover body.

5. The automatic tool changer of claim 4, wherein the tool changer edge and the mounting portion are oppositely disposed.

6. The automatic tool changer of claim 5, wherein the support member is annular and is located between the cutter head and the holder.

7. The automatic tool changer of claim 6, wherein the cover comprises:

a first half cover;

the second half cover and the first half cover are correspondingly and respectively arranged on two opposite surfaces of the supporting piece;

the first half cover is provided with a notch for the output end of the knife arm driving piece to pass through, and the second half cover is provided with the knife changing port.

8. The automatic tool changer of claim 7, wherein the first shroud half comprises:

a first main board, a second main board,

the first panel and the second panel are parallel to each other and are respectively connected to two opposite sides of the first main board;

a third panel and a fourth panel which are parallel to each other and are connected with the second panel and the first main board, wherein the third panel is also connected with the first panel, and the fourth panel is provided with the notch;

wherein the first panel, the second panel and the third panel are each connected to a side of the support; a through opening for the support to pass through is formed at the joint of the first main plate, the first panel and the fourth panel;

the first panel and the first main board are arranged at a first angle, and the first panel and the third panel are arranged at a second angle; the third panel with first mainboard is third angle setting.

9. The automatic tool changer of claim 8, wherein the first, second, and third angles are all right angles.

10. The automatic tool changer of claim 8, wherein the second half cover comprises:

the second main board is provided with a through hole for penetrating the bracket and is parallel to the first main board;

the first side plate and the second side plate which are parallel to each other are respectively connected to two opposite sides of the second main plate;

the third side plate and the fourth side plate which are parallel to each other are connected with the first side plate, the second side plate and the second main plate; the fourth panel is provided with the knife changing edge;

the first side plate, the second side plate and the third side plate are connected with the other side face of the supporting piece, the first side plate is identical to the plane extending direction of the first panel, the second side plate is identical to the plane extending direction of the second panel, the third side plate is identical to the plane extending direction of the third panel, and the fourth side plate is identical to the plane extending direction of the fourth panel.

11. The automatic tool changer of claim 4, wherein the mounting portion is formed by extending the inner wall of the housing toward the center of the housing.

12. The automatic tool changer of claim 3, wherein the gripper is movably connected to the cutter head;

the tool magazine further comprises a tool claw driving piece which is arranged on the support and used for driving the tool claw to rotate and move along the radial direction of the cutter head when the tool claw moves to the tool changing opening;

when the automatic tool changer is in a normal state, the tool claw is approximately perpendicular to the cutter disc, is close to the rotation center of the cutter disc and is far away from the tool changing port; under the tool changing state, the tool claw is approximately parallel to the cutter head, is far away from the rotation center of the cutter head and is close to the tool changing port.

13. The automatic tool changer of claim 12, wherein the jaw drive member is an air cylinder.

14. The automatic tool changer of claim 1, wherein the cutter head drive and the tool arm drive are both motors; the cutter head driving piece is connected with the cutter head through a cutter head driving piece; the knife arm driving part is connected with the knife changing arm through the knife arm driving part.

15. A numerically controlled machine tool, comprising:

a bed body;

the upright post is arranged on the lathe bed;

the workbench is movably arranged on the lathe bed along the X-axis direction and/or the Y-axis direction;

a machining spindle movably mounted on the column in a Z-axis direction;

automatic tool changer according to any one of claims 1-14, mounted to the column for changing tools on the machining spindle.

Images