CN211916290U

CN211916290U - Gantry structure and numerical control machine tool

Info

Publication number: CN211916290U
Application number: CN202020405696.7U
Authority: CN
Inventors: 陈美冰
Original assignee: Guangdong Ligong Equipment Co ltd
Current assignee: Guangdong Ligong Equipment Co ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-11-13
Anticipated expiration: 2030-03-26

Abstract

The embodiment of the application provides a gantry structure and a numerical control machine tool, wherein the gantry structure comprises a cross beam; the platform is connected to the cross beam, and the surface of the platform is intersected with the side face of the cross beam; the first sliding piece is arranged on the side surface of the cross beam, and the second sliding piece is arranged on the surface of the platform; wherein the first sliding part and the second sliding part are positioned on the same side of the cross beam. The first sliding part and the second sliding part are used for installing the external component together, so that the external component can be better supported and stabilized.

Description

Gantry structure and numerical control machine tool

Technical Field

The application relates to the field of machinery, in particular to a gantry structure and a numerical control machine tool.

Background

In the machining industry, a numerical control machine tool is generally used to cut a workpiece such as a metal. In the process of processing the workpiece, the spindle of the numerical control machine tool is usually fixed by the gantry, so that the spindle moves relative to the gantry to process the workpiece.

However, in the moving process of the main shaft, the stability of the main shaft is poor due to uneven stress of a sliding mechanism used for connecting the main shaft on the gantry, so that a machining drill of the numerical control machine tool is easy to deviate, and the machining precision is reduced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a gantry structure and a numerical control machine tool, and can improve the stability of an external component in the gantry structure.

In a first aspect, an embodiment of the present application provides a gantry structure, including:

a cross beam;

the platform is connected to the cross beam, and the surface of the platform is intersected with the side face of the cross beam;

a first slider mounted to a side of the cross beam, an

A second slide mounted to a surface of the platform; wherein,

the first sliding piece and the second sliding piece are positioned on the same side of the cross beam.

Preferably, the gantry structure further comprises:

two stands, two the stand with the crossbeam is connected, the platform by the stand with the one side that the crossbeam is connected extends towards first direction and forms.

Preferably, the surface of the platform is perpendicular to the side of the beam.

Preferably, the gantry structure further comprises:

and the third sliding piece and the first sliding piece are arranged on the side surface of the cross beam at intervals.

Preferably, the first sliding part, the second sliding part and the third sliding part are all sliding rails; or the first sliding part, the second sliding part and the third sliding part are all sliding blocks.

Preferably, when the first sliding part, the second sliding part and the third sliding part are all slide rails, the gantry structure further comprises a plurality of slide blocks, and at least one slide block is connected to the slide rails in a sliding manner;

when the first sliding part, the second sliding part and the third sliding part are all sliding blocks, the gantry structure further comprises a plurality of sliding rails, and each sliding block is connected with one sliding rail in a sliding manner.

Preferably, the lateral surface of the cross beam has a recess, the recess being located between the first slider and the third slider;

still be equipped with the fixing base on the crossbeam, the fixing base is located sunken, the fixing base is used for installing actuating mechanism, the fixing base with crossbeam integrated into one piece sets up.

Preferably, a first avoidance space is formed between the cross beam and the two upright columns.

Preferably, a reinforcing part is connected between the two upright columns, a second avoidance space is formed between the reinforcing part and the upright columns, and the size of the second avoidance space is smaller than that of the first avoidance space.

In a second aspect, an embodiment of the present application further provides a numerically-controlled machine tool, including:

a base;

a table mounted on the base;

the gantry structure is arranged on the base and comprises the gantry structure; and

and the main shaft assembly is connected to the gantry structure, and the main shaft main part can move relative to the gantry structure.

The gantry structure and the numerical control machine tool provided by the embodiment of the application are characterized in that the platform is connected to the cross beam, one side face of the cross beam is intersected with the surface of the platform, then the first sliding part is arranged on the side face of the cross beam, the second sliding part is arranged on the surface of the platform, and the external component is installed together through the first sliding part and the second sliding part, so that the effects of better supporting and stabilizing the external component can be achieved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural diagram of a numerical control machine tool provided in an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a base in a numerical control machine tool according to an embodiment of the present application.

Fig. 3 is a schematic view of a connection structure between a base and a workbench in a numerical control machine tool according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a gantry structure in a numerical control machine tool provided by an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a spindle assembly in a numerically-controlled machine tool according to an embodiment of the present application.

Fig. 6 is a schematic view of a connection structure between a base and a tool magazine in a numerical control machine tool according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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 application.

The embodiment of the application provides a numerical control machine tool. The numerical control machine tool can be used for milling the surface of a workpiece to machine special surfaces such as planes, grooves, splines, gears and threads. The workpiece may be, for example, a metal member.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a numerically-controlled machine tool provided in an embodiment of the present application. The numerical control machine tool 100 may include a base 10, a table 20, a gantry 30, and a spindle assembly 40. A table 20 is mounted on the base 10, and the table 20 can be used for clamping and fixing a workpiece (workpiece to be machined) so as to facilitate machining of the workpiece by the spindle assembly 40. Gantry 30 can also be mounted on base 10, and gantry 30 can be used to support spindle assembly 40.

Referring to fig. 2 in conjunction with fig. 1, fig. 2 is a schematic structural diagram of a base in a numerically-controlled machine tool according to an embodiment of the present application. The base 10 may include a first body 11 and a second body 12, and the second body 12 is connected to the first body 11, wherein the first body 11 and the second body 12 are perpendicular to each other, so that the first body 11 and the second body 12 may form a T-shaped structure. Wherein the table 20 may be mounted on the first body 11 and the gantry structure 30 may be mounted on the second body 12. The first body 11 and the second body 12 may be an integrally molded structure to make the stability of the base 10 higher. And, a reinforcing rib may be further provided between the first body 11 and the second body 12 to further enhance the structural strength of the first body 11 and the second body 12.

The base 10 of this application embodiment includes the first body 11 and the second body 12 of above-mentioned T type structure, and on the one hand, the area that base 10 occupy is less, and on the other hand, the first body 11 and the second body 12 of T type structure can form accommodation space, and when the staff operated in accommodation space, it was nearer apart from workstation 20, and then can make things convenient for the work piece on staff's debugging, operation workstation 20 and the change workstation 20.

The base 10 of the present embodiment may have other shapes, such as a rectangular shape, a circular shape, and an arc shape, and the shape of the base 10 is not limited in the present embodiment.

The base 10 can also be provided with a chip groove 13, the chip groove 13 is arranged around the workbench 20, and the chip groove 13 is used for receiving and guiding cutting oil and cutting chips.

The outlet of the chip discharge groove 13 is arranged at one end of the base 10 far away from the gantry structure 30, a waste barrel for receiving cutting oil and cutting chips can be directly arranged below the outlet 131 in the processing process, a through hole is not needed to be arranged at one end of the base 10 close to the gantry structure 30 to guide the cutting waste, and the structural strength of the base 10 cannot be influenced.

It can be understood that the depth of the chip groove 13 near the outlet 131 is greater than the depth of the chip groove 13 near the gantry structure 30, so that the height of the chip groove 13 near the bottom wall of the gantry structure 30 is greater than the height of the chip groove 13 far from the bottom wall of the gantry structure 30, thereby guiding the cutting oil and the cutting chips from the higher end to the lower end and facilitating the flow out from the outlet 131.

With continued reference to fig. 2, the base 10 of the embodiment of the present application may further include a table connecting portion 14 and a gantry connecting portion 15. A table 20 may be mounted on the table attachment portion 14 to secure the table 20. The gantry structure 30 can be mounted on the gantry connection 15 to secure the gantry structure 30. The table connecting portion 14 and the gantry connecting portion 15 may be protruded from the surface of the base 10 to prevent the gantry structure 30 and the table 20 from being affected by the cutting oil and chips in the chip groove 13.

Wherein, the two workbench connecting parts 14 may be symmetrically distributed along the central axis of the workbench 20 in the first direction, so that the workbench 20 can be smoothly carried by the two workbench connecting parts 14, and a sliding part, such as a workbench sliding part, is conveniently arranged on the workbench connecting part 14, so that the workbench 20 can slide in the first direction relative to the base 10 through the sliding part. The two gantry connection parts 15 may also be symmetrically distributed along the central axis of the worktable 20 in the first direction, so that the two gantry connection parts 15 can stably support the gantry structure 30.

As shown in fig. 2, the base 10 may further include a magazine attachment portion 16, and the magazine attachment portion 16 is disposed adjacent to the table attachment portion 14 and spaced apart from the table attachment portion 14. The tool magazine connecting portion 16 is disposed to protrude from the surface of the base 10, and the tool magazine connecting portion 16 is used to connect the tool magazine, so that the tool magazine is disposed on the tool magazine connecting portion 16, thereby preventing the tool magazine from being affected by the cutting oil and the cutting chips in the chip grooves 13.

Please refer to fig. 3 with continuing reference to fig. 1 and fig. 2, fig. 3 is a schematic view of a connection structure between a base and a worktable of a numerically-controlled machine tool according to an embodiment of the present application. Wherein the worktable 20 may be installed on the base 10, and the worktable 20 may be used to place a workpiece. For example, the table 20 may be provided with a clamping mechanism. The clamping mechanism is used for clamping the workpiece to prevent the workpiece from moving in the machining process. Wherein the table 20 is movable in a first direction with respect to the base 10.

The numerical control machine tool 100 of the embodiment of the present application may further include a table driving mechanism 21 and a table slider 22. A table slide 22 may be disposed between the table 20 and the base 10, and when the table slide 22 is coupled to the table 20 and the base 10, the table 20 may slide in a first direction with respect to the base 10 under the driving force provided by the table driving mechanism 21.

The worktable driving mechanism 21 may include a first motor 211, a first lead screw 212 and a nut 213, and the base 10 may also be provided with a fixing seat, in which the first motor 211 is limited, so that the first motor 211 is fixedly connected with the base 10. Also, a fixing portion may be disposed on the table 20, and the first lead screw 212 may be fixedly connected to the table 20 through the fixing portion. The nut 213 is sleeved on the first lead screw 212 and is in threaded fit with the first lead screw 212, and the worktable 20 is fixed on the nut 23. The first motor 211 can be in transmission connection with the first lead screw 212, and when the first motor 211 drives the first lead screw 212 to rotate, the second lead screw 212 can push the nut 213 and drive the worktable 20 to move along the first direction. The first motor 211 may be a servo motor or another motor.

It is understood that the table driving mechanism 21 may be other driving mechanisms, such as a driving mechanism of an oil cylinder, an air cylinder, etc., and the embodiment of the present application is not limited to the table driving mechanism 21.

It will be appreciated that since the table 20 tends to occupy less space than the base 10, the mount for the first motor 211 tends to be located in a non-edge region of the base 10. In this case, the fixing base may be a separate component from the base 10, and may be fixed to the base 10 by welding, riveting, or the like.

The worktable sliding member 22 may include a sliding rail and a sliding block, such as a first sliding rail 221 and a first sliding block 222, for example, the first sliding rail 221 may be disposed on the worktable connecting portion 14 of the base 10, the first sliding block 222 may be connected to a side of the worktable 20 facing the base 10, and the first sliding rail 221 and the first sliding block 222 cooperate to enable the worktable 20 to move in a first direction relative to the base 10, so as to achieve the sliding connection between the worktable 20 and the base 10.

It is understood that the positions of the first slide rail 221 and the first slider 222 can be interchanged, for example, the first slide rail 221 is disposed on a surface of the table 20 facing the base 10, the first slider 222 is disposed on the table connecting portion 14, and the sliding connection between the table 20 and the base 10 can also be achieved.

It is understood that the worktable slide 22 may include a plurality of first slide rails 221 and a plurality of first sliders 222, and the installation positions of the first slide rails 221 and the first sliders 222 may be interchanged, which is not described herein again.

It should be noted that the structure of the table sliding member 22 is not limited to the structure of the first sliding rail 221 and the first sliding block 222, and may be other structures such as a sliding rail and a pulley, a sliding chute and a sliding block, and any scheme that can slidably connect the table 20 and the base 10 is within the protection scope of the present application.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a gantry structure in a numerical control machine tool provided in an embodiment of the present application, in which the gantry structure 30 includes a cross beam 31, a platform 32, a first sliding member 33, and a second sliding member 34, and the first sliding member 33 and the second sliding member 34 are disposed at an interval on the same side of the cross beam 31.

The platform 32 is connected to the beam 31, a surface of the platform 32 intersects with a side surface of the beam 31, the first sliding member 33 is disposed on the side surface of the beam 31, and the second sliding member 34 is disposed on the surface of the platform 32. The first sliding part 33 and the second sliding part 34 are used for installing the external component together, so that the external component can be better supported and stabilized, the phenomenon that the spindle assembly 40 shakes in the machining process can be avoided, and the machining precision is improved.

The surface of the platform 32 intersects with the side surface of the cross beam 31, that is, the surface of the platform 32 is not coplanar with the side surface of the cross beam 31, and it can also be understood that the surface of the platform 32 and the side surface of the cross beam 31 have a preset included angle, which can be an acute angle, a right angle and an obtuse angle.

And a first slider 33 mounted on a side surface of the cross beam 31, wherein the first slider 33 includes a first mounting portion (not shown) and a second mounting portion (not shown) which are oppositely arranged, the first mounting portion is mounted on the side surface of the cross beam 31, the second mounting portion is used for mounting the spindle assembly 40, and the first slider 33 is arranged along a first direction, which can be understood as a width direction of the gantry structure 30.

Wherein the second slide 34 is spaced apart from the first slide 33, the second slide 34 includes a first connecting portion (not shown) and a second connecting portion (not shown) which are oppositely arranged, the first connecting portion is mounted on the surface of the platform 32, the second connecting portion is used for mounting the spindle assembly 40, wherein the second slide 34 is arranged along a second direction, and the second direction can be understood as a height direction of the gantry structure 30. It will be appreciated that, in order to further improve the stability of the spindle assembly 40 mounted to the gantry structure 30, the gantry structure 30 further comprises a third slide 35, the third slide 35 is mounted to the side of the beam 31, and the third slide 35 is spaced apart from the second slide 34 and the first slide 33, for example, the third slide 35 is located between the first slide 33 and the second slide 34, or the first slide 33 is located between the third slide 35 and the second slide 34.

The third sliding member 35 may be located on the same plane as the first sliding member 33, and the third sliding member 35 may be located on a different plane from the first sliding member 33. When the third slider 35 and the first slider 33 are located on the same plane, the third slider 35 and the first slider 33 are both disposed on the side of the cross beam 31; when the third sliding member 35 and the first sliding member 33 are located on different planes, a boss (not shown) may also be disposed on the side surface of the cross beam 31, the boss protrudes out of the side surface of the cross beam 31, the boss extends along the first direction, the third sliding member 35 is mounted on the first surface of the boss, the first surface of the boss is parallel to and not coplanar with the side surface of the cross beam 31, and because the third sliding member 35, the second sliding member 34, and the first sliding member 33 are not coplanar, a triangular supporting point may be formed, which plays a better role in fixing the spindle assembly 40, thereby improving the stability of the spindle assembly 40 mounted on the gantry structure 30.

The third sliding member 35 includes a first fixing portion (not shown) and a second fixing portion (not shown) opposite to each other, the first fixing portion is mounted on a side surface of the cross member 31, the second fixing portion is used for mounting the spindle assembly 40, and the third sliding member 35 is disposed along the first direction.

The first slider 33, the second slider 34 and the third slider 35 are all sliding rails, such as second sliding rails (not shown), or the first slider 33, the second slider 34 and the third slider 35 are all sliding blocks, such as second sliding blocks (not shown).

For example: when the first sliding part 33, the second sliding part 34, and the third sliding part 35 are all second sliding rails, the sliding device further includes a plurality of second sliding blocks, and at least one second sliding block is connected to the second sliding rails in a sliding manner.

It can be understood that the number of the second sliding blocks may also be multiple, for example, two, three, four, etc., and the number of the second sliding blocks on the second sliding rail may be flexibly set according to actual needs, which is not further limited in the embodiment of the present application.

The first sliding part 33 and the third sliding part 35 can be fixed to the side surface of the cross beam 31 through screws, and the second sliding part 34 can also be fixed to the surface of the platform 32 through screws, it can be understood that the first sliding part 33 and the third sliding part 34 can also be connected to the side surface of the cross beam 31 through clamping, riveting and the like, and the second sliding part 35 can also be fixed to the surface of the platform 32 through clamping, riveting and the like, which is not described in detail in the embodiments of the present application.

Referring to fig. 1 and 4 again, it can be understood that the lateral beam 31 has a recess 311 on a side surface thereof, the recess 311 is located between the first sliding member 33 and the third sliding member 35, and the recess 311 is disposed along a third direction, wherein the third direction is a length direction of the lateral beam 31, and the first direction, the second direction and the third direction are perpendicular to each other.

The cross beam 31 is further provided with a fixed seat 36, the fixed seat 36 is located in the recess 311, the fixed seat 36 is used for installing a driving mechanism 361, and the driving mechanism 361 is used for driving the main shaft assembly 40 to slide along the cross beam 31 in the third direction. Wherein the third direction is the length direction of the gantry structure 30.

The fixing seat 36 may be fixed to a first surface (not shown) formed by the recess 311 and the side surface of the cross beam 31, and the fixing seat 36 may also be fixed to a second surface (not shown) formed by the recess 311 and the side surface of the cross beam 31, where the second surface is adjacent to the first surface.

The fixing seat 36 and the cross beam 31 are integrally formed, so that the fixing seat 36 and the cross beam 31 can be fixed more firmly, the main shaft assembly 40 can be better supported by the gantry structure 30, and the fixing seat 36 can be conveniently machined.

It is understood that the fixing seat 36 can also be fixed to the cross beam 31 by means of screws, clamping, riveting, etc. The fixing manner of the fixing seat 36 and the cross beam 31 is not limited to the above manner, and other manners that the fixing seat 36 and the cross beam 31 can be fixed are all within the protection scope of the embodiment of the present application.

The top of the beam 31 is further provided with a plurality of fixing rings 312, and the fixing rings 312 are used for fixing with a transfer machine, so as to facilitate the movement of the gantry structure 30 by the transfer machine.

For example, in the embodiment of the present application, four fixing rings 312 are disposed at the top end of the cross beam 31, and the four fixing rings 312 are symmetrically disposed, so that the gantry structure 30 is fixed to a conveying machine through the four fixing rings 312, and the phenomenon of uneven stress during the conveying process can be avoided.

Referring to fig. 4 again, the gantry structure 30 further includes two columns 37, the two columns 37 are connected to the beam 31, wherein the platform 32 is formed by extending the side of the column 37 connected to the beam 31 toward the first direction.

A first avoidance space 371 is formed between the cross beam 31 and the two upright columns 37, a reinforced part 372 is connected between the two upright columns 37, the upper part of the reinforced part 372 is connected with the bottom of the cross beam 31, a second avoidance space 373 is formed between the reinforced part 372 and the two upright columns 37, and the size of the second avoidance space 373 is smaller than that of the first avoidance space 371.

The size of dodging space 373 through setting up the second is less than the size of first dodging space 371, thereby can form the space of dodging of two big one little archs below crossbeam 31, the space is dodged for first dodging space 371 to great arch, the space is dodged for the second to less arch, great first dodge space 371 is close to one side of workstation 20, be convenient for install great work piece (treating processing) on the workstation 20, and less second dodge space 373 not only can be used for installing the actuating mechanism who drives workstation 20 motion, moreover, also, can increase gantry structure 30's support rigidity.

The side of the upright post 37 is provided with an operation position 374, and the operation position 374 is convenient for fixing the upright post 37 on the base, so that the operation during installation is convenient.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a spindle assembly of a numerical control machine tool according to an embodiment of the present application. The spindle assembly 40 may include a spindle head 41, a spindle head slide 42, a spindle head slide 43, and a spindle head drive mechanism 44.

The headstock slide 42 may be slidably connected to the gantry 30 via the first slider 33, the second slider 34, and the like, or the headstock slide 42 may be slidably connected to the headstock 41 via the headstock slider 43, so that the headstock 41 may be connected to the gantry 30 via the headstock slide 42. The headstock slide 42 moves the headstock 41 relative to the gantry 30 in a second direction.

The headstock slide 43 is disposed between the headstock slide 42 and the headstock 41, the headstock slide 43 is connected to the headstock slide 42 and the headstock 41, respectively, and the headstock 41 is movable relative to the headstock slide 42 and the gantry structure 30 by the headstock slide 43, thereby adjusting the relative position of the headstock 41 and the table 20.

The headstock slide 43 may include a third slide rail 431 and a third slide block 432, the third slide rail 431 may be disposed on the headstock slide 42, the third slide block 432 may be coupled to the headstock 41, and the third slide block 432 and the third slide rail 431 cooperate to move the headstock 41 in a second direction relative to the headstock slide 42, thereby achieving a sliding connection between the headstock 41 and the headstock slide 42.

It is understood that the headstock slide 43 may include a plurality of third slide rails 431 and third slide blocks 432, and the mounting positions of the third slide rails 431 and the third slide blocks 432 may be interchanged, which will not be described herein. Of course, the structure of the headstock slide 43 is not limited to the structure of the third slide rail 431 and the third slide block 432, and may be other structures such as a slide rail and a pulley, a slide groove and a slide block, and any scheme capable of slidably connecting the headstock 41 and the headstock slide plate 42 is within the scope of the present application.

The spindle head driving mechanism 44 is fixedly connected to the spindle head 41, and provides a driving force to the spindle head 41. The head stock 41 is movable in a second direction relative to the head slide 42 under the drive force provided by the head stock drive mechanism 44. The headstock driving mechanism 44 may include a third motor and a third screw, and the headstock slide 42 may be mounted with a fixing seat, in which the third motor is limited, and the third motor may be fixedly connected with the headstock slide 42. The main spindle box 41 may be provided with a fixing portion, and the third screw may be fixedly connected with the main spindle box 41 through the fixing portion. And, the third motor can be connected with the third lead screw in a transmission manner, and when the third motor drives the third lead screw to move along the second direction, the third lead screw can also drive the spindle box 41 to move along the second direction. The third motor may be a servo motor or another motor.

It is to be understood that the headstock drive mechanism 44 may be other drive mechanisms, such as a cylinder, an air cylinder, and the like, and the headstock drive mechanism 44 is not particularly limited in this application.

With continued reference to fig. 5, the spindle box 41 may include a spindle box body 411, a spindle (not shown), and a milling head 412. The spindle head body 411 serves to support other components of the spindle head 41. The spindle head body 411 may be made of metal, or may be made of metal and plastic.

The spindle is mounted on the spindle head body 411. Under the action of the driving force, the main shaft can vertically move up and down along the second direction so as to realize the movement in the vertical direction. Meanwhile, the main shaft can rotate around the second direction to realize the cutting processing of the surface of the workpiece.

The milling head 412 is mounted on the spindle. Wherein, the milling head 412 can be fixedly connected with the main shaft; the milling head 412 may also be removably coupled to the spindle to allow replacement of the milling head 412. The milling head 412 may be fitted with a cutter such as a milling cutter. The milling cutter is directly used for processing the surface of a workpiece. When the spindle moves and/or rotates in the third direction, the spindle drives the milling head 412 and the milling cutter to move and/or rotate in the third direction, or drives the milling head 412 and the milling cutter to retract from the machining position after the machining is completed.

The driving force for driving the spindle to rotate may be provided by a spindle driving mechanism, and the numerical control machine 100 according to the embodiment of the present disclosure may further include a spindle driving mechanism (not shown in the figure), which may drive the spindle to rotate. Specifically, the spindle driving mechanism may include a spindle motor and a transmission belt, the transmission belt connects the spindle motor and the spindle belt of the spindle box 41 in a transmission manner, and then the spindle motor may drive the spindle to rotate, so as to realize drilling of the workpiece.

It will be appreciated that the spindle drive mechanism may be other drive mechanisms such as a combination of a motor and gears, a motor and chain, etc. The present application is also not particularly limited to the spindle drive mechanism.

Wherein the milling cutter can be selected from a magazine and replaced. Specifically, please refer to fig. 6 in combination with fig. 1, and fig. 6 is a schematic connection diagram of a base and a tool magazine of a numerical control machine tool according to an embodiment of the present application. The numerical control machine tool of the embodiment of the application can further comprise a tool magazine 50, a tool magazine sliding part 60 and a tool magazine driving mechanism (not shown in the figure), the tool magazine sliding part 60 is arranged between the tool magazine 50 and the base 10, the tool magazine 50 is slidably connected to the tool magazine sliding part 60, the tool magazine driving mechanism is fixedly connected with the tool magazine 50, the tool magazine driving mechanism provides driving force for the tool magazine 50, and under the action of the driving force, the tool magazine 50 can slide along a third direction relative to the base 10 through the tool magazine sliding part 60 so as to realize the sliding connection between the tool magazine 50 and the base 10.

The tool magazine 50 may include a magazine chassis 51, a magazine disk 52, a magazine spindle (not shown), and a magazine disk drive mechanism (not shown). The tool magazine chassis 51 is used for supporting other components of the tool magazine 50, and the tool magazine slider 60 is arranged between the tool magazine chassis 51 and the base 10, so that the tool magazine 50 can be slidably connected with the base 10. The tool magazine spindle is coaxial with the tool magazine disc 52, the upper end of the tool magazine spindle can be connected with the middle of the tool magazine disc 52 through fasteners such as expansion sleeves and the like, and a rotating shaft of the tool magazine disc driving mechanism can also be coaxially connected with the tool magazine disc 52, so that the tool magazine disc driving mechanism drives the tool magazine disc 52 to rotate around the tool magazine spindle. The outer periphery of the magazine disc 52 is provided with a plurality of tool holders for holding tools such as milling cutters. When the spindle assembly 40 and the tool magazine 50 are moved toward each other in the third direction, the spindle assembly 40 can select or replace a tool from the tool holder of the tool magazine 50.

It should be noted that, the above is only a specific structure of the tool magazine 50, and the tool magazine 50 may also be an inline tool magazine 50, an internal tool magazine 50, or the like, and the specific structure of the tool magazine 50 is not limited in the embodiment of the present application, and any structure of the tool magazine 50 that can realize the selection or replacement of the tool from the tool magazine 50 by the spindle assembly 40 is within the protection scope of the present application.

It is understood that the magazine slider 60 may include a first end 61 and a second end 62 along the third direction, wherein the first end 61 protrudes from the edge of the base 10 and the second end 62 has a gap 621 with the table 20. Furthermore, when the spindle assembly 40 processes a workpiece, the tool magazine 50 can slide at the first end 61, so that cutting chips and cutting oil in the processing process of the spindle assembly 40 can be prevented from splashing into the tool magazine 50, the processing space of the spindle assembly 40 can be increased, and the tool magazine 50 and the spindle assembly 40 can be prevented from being damaged due to sound collision with the spindle assembly 40. When the spindle assembly 40 is replaced with a tool, the tool magazine 50 can slide to the second end 62, so that the tool magazine can be prevented from colliding with the table 20, the movement stroke of the spindle assembly 40 can be reduced, and the tool replacement efficiency can be improved.

The tool magazine slider 60 may include a fourth slide rail 63 and a fourth slider 64, the fourth slide rail 63 may be directly mounted on the base 10, the fourth slide rail 63 may also be mounted on the tool magazine connecting portion 16 fixed on the base 10, and the fourth slide rail 63 is indirectly mounted on the base 10 through the tool magazine connecting portion 16. The fourth sliding block 64 may be connected to the tool magazine 50, and the fourth sliding block 64 and the fourth sliding rail 63 cooperate to enable the tool magazine 50 to move along a third direction relative to the base 10, so as to achieve sliding connection between the tool magazine 50 and the base 10.

It is understood that the tool magazine slider 60 may include a plurality of fourth slide rails 63 and a plurality of fourth slide blocks 64 as the first slider 33 and the second slider 34, which will not be described herein. Moreover, the mounting positions of the fourth slide rail 63 and the fourth slide block 64 can be interchanged, and are not described herein again. Meanwhile, the structure of the tool magazine slider 60 is not limited to the structure of the fourth slide rail 63 and the fourth slide block 64, and may be other structures such as a slide rail and a pulley, a sliding chute and a slide block, and any scheme that can slidably connect the tool magazine 50 and the base 10 is within the protection scope of the present application.

Based on the foregoing description, in the numerical control machine tool 100 according to the embodiment of the present invention, the table 20 is movable in a first direction relative to the base 10, the spindle assembly 40 is movable in a second direction relative to the gantry structure 30, and the spindle assembly 40 is also movable in a third direction relative to the gantry structure 30. The third direction is perpendicular to the first direction, and the third direction is also perpendicular to the second direction. Further, the first direction, the second direction, and the third direction may constitute an X-axis direction, a Z-axis direction, and a Y-axis direction in a three-dimensional coordinate system.

For example, the third direction may refer to the X-axis direction parallel to the base 10, and the spindle assembly 40 may move horizontally left and right relative to the base 10; the first direction may refer to a direction parallel to the Y-axis of the base 10, and the table 20 may be horizontally moved back and forth with respect to the base 10. The second direction may refer to a direction perpendicular to the Z-axis of the base 10, and the spindle assembly 40 may move up and down in a vertical direction with respect to the base 10.

It should be noted that the first direction, the second direction, and the third direction may be interchanged, for example, the first direction is the Y-axis direction, the second direction is the X-axis direction, and the third direction is the Z-axis direction; the specific orientations of the first direction, the second direction and the third direction are not limited in the embodiments of the present application, and any arrangement that the first direction, the second direction and the third direction are perpendicular to each other is within the scope of the present application.

The working steps of the numerically controlled machine tool 100 according to the embodiment of the present application are explained in detail as follows:

controlling the driving mechanism 361 to work, wherein the driving mechanism 361 drives the whole spindle assembly 40 to slide along the third direction and towards the direction of the tool magazine 50; meanwhile, the tool magazine driving mechanism is controlled to work, and the tool magazine driving mechanism drives the whole tool magazine 50 to slide along the third direction and towards the direction of the spindle assembly 40 so as to adjust the positions of the tool magazine 50 and the spindle assembly 40;

according to the processing requirement, controlling the operation of a tool magazine disc driving mechanism, controlling the rotation of a tool magazine disc by the tool magazine disc driving mechanism, driving the tool magazine disc 52 to rotate by a tool magazine spindle so as to adjust the position of a target tool and a spindle assembly 40, and then selecting the tool from the tool magazine 50 by the spindle assembly 40 and installing the tool on a milling head 412 of a spindle box 41;

after a workpiece is placed on the workbench 20, the workbench driving mechanism 21 is controlled to work, and the workbench driving mechanism 21 drives the workbench 20 to move along a first direction so as to adjust the position of the workpiece in the first direction;

controlling the driving mechanism 361 to work, wherein the driving mechanism 361 drives the whole spindle assembly 40 including the spindle box 41, the spindle box sliding plate 42 and other components to move along a third direction; meanwhile, the spindle box driving mechanism 44 is controlled to work, the spindle box driving mechanism 44 drives the whole spindle box 41 to move along the second direction, and further, the positions of the milling head 412 and the cutter and the workpiece of the spindle box 41 can be adjusted;

after the positions of the milling head 412, the cutter and the workpiece are adjusted, the spindle box driving mechanism 44 is controlled to work, and the spindle box driving mechanism 44 drives the whole spindle box 41 and the cutter to move along the second direction; meanwhile, the spindle driving mechanism is controlled to work, the spindle driving mechanism controls the spindle of the spindle box 41 to rotate, the spindle drives the milling head 412 and the cutter to rotate, and then the cutter moves along the second direction and rotates around the spindle at the same time, so that the main movement of the spindle box 41 and the cutter is realized;

and the driving mechanism 361 is controlled to work, the driving mechanism 361 drives the whole spindle assembly 40 and the cutter to move along a third direction, so that the spindle box 41 and the cutter are fed, and the cutter can process grooves, gear teeth, threads and the like on the surface of a workpiece in the third direction under the combination of the main motion and the feed motion.

It can be understood that, during the feeding motion, the workbench driving mechanism 21 may also be controlled to operate, the workbench driving mechanism 21 drives the whole workbench 20 and the workpiece to horizontally move along the first direction, so as to implement the feeding motion of the workpiece, and under the combination of the main motion and the feeding motion, the tool may process grooves, gear teeth, threads, etc. on the surface of the workpiece in the first direction.

It is understood that, in the above working steps, the Control of each driving mechanism may be controlled by a Numerical Control unit, such as a Numerical Control machine (CNC) controller, so as to achieve precise processing of the workpiece and improve the processing efficiency.

It is to be understood that in the description of the embodiments of the present application, terms such as "first", "second", and the like are used merely to distinguish similar objects, and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.

Furthermore, in the description of the embodiments of the present application, the term "mount" may include fixed mount, may also include sliding mount, may include detachable mount, and may also include non-detachable mount, as long as there is no conflict with the implementation of the present application.

The numerical control machine tool and the gantry structure provided by the embodiment of the application are introduced in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A gantry structure, comprising:

a cross beam;

a first slider mounted to a side of the cross beam, an

A second slide mounted to a surface of the platform; wherein,

2. The gantry structure of claim 1, further comprising:

3. The gantry structure of claim 1, wherein a surface of the platform is perpendicular to a side of the beam.

4. A gantry structure according to any one of claims 1-3, further comprising:

5. Gantry structure according to claim 4, characterized in that:

the first sliding part, the second sliding part and the third sliding part are all sliding rails; or

The first sliding part, the second sliding part and the third sliding part are all sliding blocks.

6. Gantry structure according to claim 5, characterized in that:

when the first sliding part, the second sliding part and the third sliding part are all sliding rails, the gantry structure further comprises a plurality of sliding blocks, and the sliding rails are connected with at least one sliding block in a sliding manner;

7. Gantry structure according to claim 4, characterized in that:

the side surface of the cross beam is provided with a recess which is positioned between the first sliding piece and the third sliding piece;

8. The gantry structure according to claim 2, wherein a first avoidance space is formed between the cross beam and the two columns.

9. The gantry structure according to claim 8, wherein a reinforcing part is connected between the two columns, a second avoidance space is formed between the reinforcing part and the two columns, and the size of the second avoidance space is smaller than that of the first avoidance space.

10. A numerically controlled machine tool, comprising:

a base;

a table mounted on the base;

a gantry structure mounted to the base, the gantry structure comprising the gantry structure of any one of claims 1-9; and

and the main shaft assembly is connected to the gantry structure and can move relative to the gantry structure.