CN112355718A

CN112355718A - Machining center with high stability and compact structure

Info

Publication number: CN112355718A
Application number: CN202011246685.XA
Authority: CN
Inventors: 梁智棠; 何嘉杰; 赵小雨; 刘国锦
Original assignee: Guangdong Pradi Technology Co Ltd
Current assignee: Guangdong Pradi Technology Co Ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-02-12

Abstract

The invention relates to the technical field of numerical control machining equipment, in particular to a machining center with high stability and compact structure, which comprises: a bed body; the upright post is arranged on the bed body, is provided with an accommodating cavity, and is provided with corresponding first linear guide rails on the side walls of the two sides of the accommodating cavity; the processing mechanism is arranged in the accommodating cavity and comprises a Y-axis sliding seat, a Y-axis driving assembly and a spindle arranged on the Y-axis sliding seat, the Y-axis sliding seat is slidably arranged on the first linear guide rail, and the Y-axis driving assembly is arranged at the upper end of the stand column and is in transmission connection with the Y-axis sliding seat. According to the invention, the mounting surface of the first linear guide rail is lowered, so that the mounting height of the whole machining mechanism is lowered, the center of gravity of the machining mechanism is shifted downwards, and the stability of the machining center is better; and the dislocation set of first linear guide and Y axle drive assembly for the whole width of stand reduces, and machining center's whole volume diminishes.

Description

Machining center with high stability and compact structure

Technical Field

The invention relates to the technical field of numerical control machining equipment, in particular to a machining center with high stability and a compact structure.

Background

With the continuous development of science and technology, various machining centers are developed to adapt to different machining conditions and machining requirements, including vertical machining centers, horizontal machining centers, vertical and horizontal combined machining centers and the like. In most of existing vertical machining centers, two upright columns are usually arranged on a lathe bed oppositely, then a driving mechanism is arranged on the upper end faces of the upright columns, a cross beam is erected between the two upright columns, and the driving mechanism drives the cross beam to move so as to drive a machine tool spindle to move, so that workpieces are machined. In the machining center with the structure, the driving mechanism and the cross beam are both positioned above the upright column, and the horizontal height of the cross beam relative to the lathe bed is higher, so that the gravity center of the whole machine is higher, and the overall stability of the lathe is poorer; and actuating mechanism and crossbeam all are connected with the up end of stand, make the width broad of stand, and machining center's whole volume is great.

Disclosure of Invention

The invention aims to provide a machining center with high stability and a compact structure, and aims to solve the technical problems that a vertical machining center in the prior art is poor in overall stability and large in size.

In order to achieve the above object, the present invention provides a machining center with high stability and compact structure, including:

a bed body;

the upright post is arranged on the bed body, an accommodating cavity is formed in the upright post, and corresponding first linear guide rails are arranged on the side walls of the upright post at the two sides of the accommodating cavity;

processing agency, its setting is in hold the intracavity, just processing agency includes Y axle slide, Y axle drive assembly and installs main shaft on the Y axle slide, install Y axle slide slidable on the first linear guide rail, Y axle drive assembly installs the upper end of stand and with Y axle slide transmission is connected. The mounting surface of the first linear guide rail is lowered, so that the mounting height of the whole machining mechanism is lowered, the center of gravity of the machining mechanism is shifted downwards, and the stability of the machining center is better; and the dislocation set of first linear guide and Y axle drive assembly for the whole width of stand reduces, and machining center's whole volume diminishes.

Preferably, the upright column comprises a first supporting wall and a second supporting wall which are identical in structure and are oppositely arranged, and the first supporting wall and the second supporting wall are arranged at intervals to form the accommodating cavity. The upright column adopts a double-arm structure, and has higher processing rigidity and higher precision stability compared with a single-arm structure; and the stability of the processing mechanism borne on the upright post is higher.

Preferably, the first support wall includes a vertical support wall slidably installed on the bed body and a horizontal support wall provided at an upper end of the vertical support wall and perpendicular to the vertical support wall. The structural design of the first supporting wall can directly arrange the stand column on the lathe bed, enable the lathe bed to have enough positions for placing workpieces, reduce the width of the lathe bed and enable the volume of a machining center to be smaller and the structure to be more compact.

Preferably, the side walls of the upright column at two sides of the accommodating cavity are provided with supporting steps, and the first linear guide rail is correspondingly installed on the supporting steps. The supporting step can enable the structure between the processing mechanism and the stand column to be more stable, and the connection stress of the first linear guide rail and the Y-axis sliding seat is more reasonable.

Preferably, the Y-axis driving assembly comprises a first motor, a first lead screw, a first supporting seat and a lead screw nut seat; the first motor and the first supporting seat are both arranged on the upright post; one end of the first screw rod is mounted at the output end of the first motor, and the other end of the first screw rod is rotatably mounted on the first support seat around the central axis of the first screw rod; the screw rod nut seat is installed on the Y-axis sliding seat and is in threaded connection with the first screw rod. The Y-axis driving component can be conveniently arranged on the upright post, so that the transmission connection between the Y-axis driving component and the Y-axis sliding seat is more reasonable; and the transmission efficiency of the screw rod transmission is higher, the movement is more stable, the positioning precision is higher, the service life is longer, and the like.

Preferably, the machining mechanism further comprises a Z-axis slide plate and a spindle box, the Z-axis slide plate is slidably mounted on the Y-axis slide seat, the spindle box is mounted at the lower end of the Z-axis slide plate, and the spindle is mounted on the spindle box. The Z-axis sliding plate is slidably arranged on the Y-axis sliding seat, so that the spindle can move in the Z-axis direction to meet the machining requirement of the workpiece.

Preferably, the processing mechanism further comprises a Z-axis driving assembly for driving the Z-axis sliding plate to slide, and the Z-axis driving assembly comprises a second motor, a second lead screw, a second supporting seat and a lead screw nut; the Y-axis sliding seat is provided with a lead screw nut fixing seat; the second motor and the second supporting seat are arranged on the Z-axis sliding plate; one end of the second screw rod is mounted at the output end of the second motor, and the other end of the second screw rod is rotatably mounted on the second supporting seat around the central axis of the second screw rod; the screw rod nut is installed on the screw rod nut fixing seat and is in threaded connection with the screw rod. The Z-axis driving assembly is arranged in such a way, so that the Z-axis driving assembly can be conveniently installed on the Z-axis sliding plate, and the transmission efficiency of the screw rod transmission is higher, the movement is more stable, the positioning precision is higher, the service life is longer, and the like.

Preferably, a YZ-axis drag chain is further included; the upright post is provided with an accommodating frame for accommodating the YZ-axis drag chain, and the Z-axis sliding plate is provided with a drag chain connecting piece; and two ends of the YZ-axis drag chain are respectively connected with the drag chain connecting piece and the containing frame. YZ axle tow chain can get up the required cable of motion in Y axle and the Z axle direction, oil pipe and trachea etc. protection, can save the cost, and the line mode of walking with the difference makes the inside linkage of lathe more laminate again.

Preferably, the machining mechanism further comprises an X-axis sliding plate which is slidably mounted on the lathe bed, and the upright is mounted on the X-axis sliding plate; and a tool magazine is arranged on the X-axis sliding plate and is positioned in the accommodating cavity. The position of the warehouse is arranged, so that the machining mechanism can change tools more conveniently, the space is saved, the time for moving and waiting is shortened, and the machining efficiency is improved.

Preferably, a second linear guide rail is arranged on the X-axis sliding plate, the extending direction of the second linear guide rail is the same as the moving direction of the Y-axis sliding seat, and the tool magazine is slidably arranged on the second linear guide rail. Not only can improve the tool changing efficiency, but also can make the overall structure more compact.

The machining center with high stability and compact structure at least has the following beneficial effects: the method comprises the following steps of forming an accommodating cavity on an upright column, enabling a machining center to be located in the accommodating cavity, installing a first linear guide rail on the side wall of the upright column, and installing a Y-axis driving assembly at the upper end of the upright column, so that the first linear guide rail and the Y-axis driving assembly are staggered in the horizontal height; the Y-axis sliding seat is slidably arranged on the first linear guide rail, and the Y-axis driving assembly can drive the Y-axis sliding seat to slide on the first linear guide rail; therefore, the mounting surface of the first linear guide rail is lowered, so that the mounting height of the whole machining mechanism is lowered, the center of gravity of the machining mechanism is shifted downwards, and the stability of the machining center is better; and the dislocation set of first linear guide and Y axle drive assembly for the whole width of stand reduces, and machining center's whole volume diminishes. The Y-axis sliding seat is arranged on the first linear guide rail, so that the horizontal height of the Y-axis sliding seat is lower and is closer to a workbench on the lathe bed, the force arm of the moment generated by the force acting on the machining mechanism is reduced, and the Y-axis sliding seat has higher stability and dynamic performance and better shock absorption performance during machining; meanwhile, the Y-axis sliding seat is exquisite and simple in structure, the self weight of the Y-axis sliding seat is greatly reduced, and the independent deformation is small.

Drawings

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

FIG. 1 is a schematic axial side view of a machining center according to the present invention;

FIG. 2 is a schematic axial side view of the machining center at a first angle after the machining center is removed from the bed;

FIG. 3 is a schematic axial side view of the machining center at a second angle with the body removed in accordance with the present invention;

FIG. 4 is a schematic axial side view of the machining center at a third angle after the machining center is removed from the bed;

FIG. 5 is a schematic view of the assembly structure of the Y-axis driving assembly and a portion of the column according to the present invention;

FIG. 6 is a schematic side view of the Y-axis carriage of the present invention;

FIG. 7 is a schematic side view of the Z-axis slide of the present invention;

FIG. 8 is a schematic side view of another angle of the Z-axis slide of the present invention;

FIG. 9 is a schematic view of an assembly structure of the X-axis slide plate and the tool magazine according to the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

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

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 9, a machining center with high stability and compact structure includes:

a lathe bed 1;

the upright column 2 is installed on the lathe bed 1, an accommodating cavity 21 is formed in the upright column 2, and corresponding first linear guide rails 22 are arranged on the side walls of the upright column 2 on the two sides of the accommodating cavity 21;

processing agency 3, it sets up in hold the intracavity 21, just processing agency 3 includes Y axle slide 31, Y axle drive assembly 32 and installs main shaft 33 on the Y axle slide 31, install Y axle slide 31 slidable on first linear guide 22, Y axle drive assembly 32 install stand 2 the upper end and with Y axle slide 31 transmission is connected.

The lathe bed 1 is used as a base of the machining center and is used for bearing various mechanisms of the machining center and workpieces to be machined. The upright column 2 is arranged on the machine body 1, and is specifically arranged at a position close to the edge of the machine body 1, and the machine body 1 at the front end of the upright column 2 is a processing station for processing a workpiece. The upright post 2 is provided with an accommodating cavity 21, and the accommodating cavity 21 is specifically arranged in the middle of the upright post 2; the two sides of the accommodating cavity 21 are side walls of the upright post 2, and the side walls of the two sides of the accommodating cavity 21 are provided with corresponding first linear guide rails 22. The processing mechanism 3 is used for processing a workpiece, and the processing mechanism 3 is positioned in the accommodating cavity 21; the machining mechanism 3 comprises a Y-axis sliding seat 31, a Y-axis driving assembly 32 and a spindle 33, wherein the Y-axis sliding seat 31 is slidably arranged on the first linear guide rail 22; the Y-axis driving assembly 32 is used for driving the Y-axis sliding seat 31 to slide on the first linear guide rail 22, and the Y-axis driving assembly 32 is installed on the upper end surface of the upright post 2. First linear guide 22 is mounted on the side wall of column 2, and Y-axis drive assembly 32 is mounted on the upper end surface of column 2, so that the level of first linear guide 22 is lower than the level of Y-axis drive assembly 32, and the level of spindle 33 is lower when Y-axis slide 31 is mounted on first linear guide 22.

In most of existing vertical machining centers, two upright columns are usually arranged on a lathe bed oppositely, then a driving mechanism is arranged on the upper end faces of the upright columns, a cross beam is erected between the two upright columns, and the driving mechanism drives the cross beam to move so as to drive a machine tool spindle to move, so that workpieces are machined. In the machining center with the structure, the driving mechanism and the cross beam are both positioned above the upright column, and the horizontal height of the cross beam relative to the lathe bed is higher, so that the gravity center of the whole machine is higher, and the overall stability of the lathe is poorer; and actuating mechanism and crossbeam all are connected with the up end of stand, make the width broad of stand, and machining center's whole volume is great. In the technical scheme, the upright post 2 is provided with the accommodating cavity 21, so that the machining center is positioned in the accommodating cavity 21, the first linear guide rail 22 is arranged on the side wall of the upright post 2, and the Y-axis driving component 32 is arranged at the upper end of the upright post 2, so that the first linear guide rail 22 and the Y-axis driving component 32 are staggered in the horizontal height; the Y-axis sliding seat 31 is slidably mounted on the first linear guide rail 22, and the Y-axis driving assembly 32 can drive the Y-axis sliding seat 31 to slide on the first linear guide rail 22; therefore, by lowering the mounting surface of the first linear guide 22, the mounting height of the entire machining mechanism 3 is lowered, and therefore the center of gravity of the machining mechanism 3 is shifted downward, so that the stability of the machining center is improved; and the first linear guide rail 22 and the Y-axis driving component 32 are arranged in a staggered mode, so that the overall width of the upright post 2 is reduced, and the overall volume of the machining center is reduced. The Y-axis sliding seat 31 is arranged on the first linear guide rail 22, so that the horizontal height of the Y-axis sliding seat 31 is lower and is closer to a workbench on the machine body 1, the force arm of the moment generated by the force acting on the machining mechanism 3 is reduced, the stability and the dynamic performance are higher, and the shock absorption performance during machining is more excellent; meanwhile, the Y-axis sliding seat 31 is exquisite and simple in structure, self weight is greatly reduced, and independent deformation is small.

Further, the upright post 2 comprises a first supporting wall 23 and a second supporting wall 24 which are identical in structure and are oppositely arranged, and the first supporting wall 23 and the second supporting wall 24 are arranged at intervals to form the accommodating cavity 21.

The upright post 2 is composed of two parts, namely a first supporting wall 23 and a second supporting wall 24 which are the same in shape and structure; the first support wall 23 and the second support wall 24 have a certain distance therebetween, and the distance is formed as a receiving cavity 21; the side walls of the upright post 2 at two sides of the accommodating cavity 21 are provided with corresponding first linear guide rails 22, that is, the side wall of the first supporting wall 23 at one side close to the second supporting wall 24 is provided with one first linear guide rail 22, and the side wall of the second supporting wall 24 at one side close to the first supporting wall 23 is provided with one first linear guide rail 22. The processing mechanism 3 is positioned in the accommodating cavity 21, namely the processing mechanism 3 is positioned between the first supporting wall 23 and the second supporting wall 24; the Y-axis driving assembly 32 is installed on the upper end surface of the column 2, and may be located on the upper end surface of the first support wall 23 or the second support wall 24. The upright column 2 comprises a first supporting wall 23 and a second supporting wall 24, namely the upright column 2 adopts a double-arm structure, and compared with a single-arm structure, the upright column has higher processing rigidity and higher precision stability; and the stability of the processing mechanism 3 borne on the upright 2 is higher.

Further, the first support wall 23 includes a vertical support wall 231 and a transverse support wall 232, the vertical support wall 231 is slidably mounted on the bed 1, and the transverse support wall 232 is disposed at an upper end of the vertical support wall 231 and is perpendicular to the vertical support wall 231.

As mentioned above, the upright post 2 is composed of the first support wall 23 and the second support wall 24 which have the same structure and are arranged at intervals; the first support wall 23 includes a vertical support wall 231 and a horizontal support wall 232 which are perpendicular to each other, i.e., the side view structure of the first support wall 23 is shown as an approximate 7-shaped structure; the vertical support wall 231 is slidably installed on the bed 1, and the transverse support wall 232 is disposed at the upper end of the vertical support wall 231 and extends toward the middle of the bed 1. The structure of the second support wall 24 is the same as that of the first support wall 23, the two first linear guide rails 22 are respectively installed on the transverse support walls 232 of the first support wall 23 and the second support wall 24, and the Y-axis slide carriage 31 is slidably installed on the first linear guide rails 22, so that the moving direction of the Y-axis slide carriage 31 is the extending direction of the transverse support walls 232; the extending direction of the transverse support wall 232 is toward the middle of the bed 1, so that the main shaft 33 can move toward the middle of the bed 1, and further, a workpiece placed on the bed 1 can be processed. The structural design of the first support wall 23 not only enables the column 2 to be directly arranged on the lathe bed 1, but also enables the lathe bed 1 to have enough positions for placing workpieces, and can reduce the width of the lathe bed 1, so that the volume of a machining center is smaller, and the structure is more compact.

Preferably, the joint between the vertical support wall 231 and the transverse support wall 232 is provided with a reinforcing metal plate 25. The vertical supporting walls 231 and the horizontal supporting walls 232 form an approximately 7-shaped structure, and thus in order to improve the structural stability of the first supporting wall 23, reinforcing metal plates 25 are provided at the junctions of the vertical supporting walls 231 and the horizontal supporting walls 232.

Further, the side walls of the upright 2 at both sides of the accommodating cavity 21 are provided with supporting steps 26, and the first linear guide 22 is correspondingly installed on the supporting steps 26.

A support step 26 is provided, so that the first linear guide 22 is arranged horizontally; the support step 26 carries the first linear guide 22 and the first linear guide 22 carries the Y-axis carriage 31. The supporting step 26 can make the structure between the processing mechanism 3 and the upright 2 more stable, and the connection of the first linear guide 22 and the Y-axis slide 31 is more reasonable.

Further, the Y-axis driving assembly 32 includes a first motor 321, a first lead screw 322, a first supporting seat 323, and a lead screw nut seat 324; the first motor 321 and the first supporting seat 323 are both installed on the upright post 2; one end of the first screw rod 322 is installed at the output end of the first motor 321, and the other end of the first screw rod 322 is installed on the first support seat 323 in a manner of rotating around the central axis of the first screw rod 322; the lead screw nut seat 324 is installed on the Y-axis slide carriage 31 and is in threaded connection with the first lead screw 322.

In this embodiment, the driving manner of the Y-axis slide 31 is screw transmission. The Y-axis driving assembly 32 comprises a first motor 321, a first screw rod 322, a first supporting seat 323 and a screw rod nut seat 324, wherein the first motor 321 and the first supporting seat 323 are both arranged at the upper end of the upright post 2, a connecting line between the first motor 321 and the first supporting seat 323 is collinear with the moving direction of the Y-axis sliding seat 31, and the distance between the first motor 321 and the first supporting seat 323 is slightly smaller than the whole length of the first screw rod 322; one end of the first screw 322 is installed at the output end of the first motor 321, the other end is installed on the first support seat 323, and the first screw 322 can rotate around the central axis of the first screw 322 relative to the first support seat 323; the lead screw nut seat 324 is installed on the Y-axis slide seat 31 and is in threaded connection with the first lead screw 322, that is, the lead screw nut seat 324 is sleeved on the first lead screw 322 and is fixedly connected with the Y-axis slide seat 31. The first motor 321 is started to drive the first lead screw 322 to rotate around its central axis, and then drive the lead screw nut seat 324 to slide on the first lead screw 322, and the lead screw nut seat 324 slides to drive the Y-axis sliding seat 31 to slide on the first linear guide rail 22. The Y-axis driving component 32 is designed in such a way, so that the Y-axis driving component can be conveniently arranged on the upright post 2, and the transmission connection between the Y-axis driving component 32 and the Y-axis sliding seat 31 is more reasonable; and the transmission efficiency of the screw rod transmission is higher, the movement is more stable, the positioning precision is higher, the service life is longer, and the like.

Further, the machining mechanism 3 further includes a Z-axis slide 34 and a spindle head 35, the Z-axis slide 34 is slidably mounted on the Y-axis slide 31, the spindle head 35 is mounted on a lower end of the Z-axis slide 34, and the spindle 33 is mounted on the spindle head 35.

The spindle 33 is generally movable in the X, Y and Z directions during the machining of the workpiece. The processing mechanism 3 further comprises a Z-axis sliding plate 34 and a spindle box 35, wherein the Z-axis sliding plate 34 is arranged on the Y-axis sliding seat 31 in a vertically sliding manner, namely the Z-axis sliding plate 34 can move up and down relative to the Y-axis sliding seat 31; a headstock 35 is mounted below the Z-axis slide 34, and the spindle 33 is specifically mounted on the headstock 35. A Z-axis slide 34 is slidably mounted on the Y-axis slide 31 so that the spindle 33 can move in the Z-axis direction to meet the machining requirements for the workpiece.

Further, the processing mechanism 3 further includes a Z-axis driving assembly 36 for driving the Z-axis sliding plate 34 to slide, and the Z-axis driving assembly 36 includes a second motor 361, a second lead screw 362, a second supporting seat 363 and a lead screw nut 364; the Y-axis sliding seat 31 is provided with a lead screw nut fixing seat 311; the second motor 361 and the second supporting seat 363 are installed on the Z-axis sliding plate 34; one end of the second lead screw 362 is installed at the output end of the second motor 361, and the other end of the second lead screw 362 is installed on the second support base 363 in a manner of rotating around the central axis of the second lead screw 362; the lead screw nut 364 is mounted on the lead screw nut holder 311 and is in threaded connection with the second lead screw 362.

The Z-axis slide 34 is driven by a Z-axis driving component 36, and the driving mode adopted by the Z-axis driving component 36 in this embodiment is also screw rod driving. The Z-axis driving assembly 36 comprises a second motor 361, a second lead screw 362, a second supporting seat 363 and a lead screw nut 364; the second motor 361 and the second supporting seat 363 are both installed on the Z-axis sliding plate 34, the second motor 361 and the second supporting seat 363 are arranged up and down correspondingly, a connecting line between the second motor 361 and the second supporting seat 363 is collinear with the moving direction of the Z-axis sliding plate 34, and the distance between the second motor 361 and the second supporting seat 363 is slightly smaller than the whole length of the second screw 362; one end of the second screw 362 is installed at the output end of the second motor 361, the other end is installed on the second support base 363, and the second screw 362 can rotate around the central axis of the second screw 362 relative to the second support base 363; the lead screw nut 364 is sleeved on the second lead screw 362 and is in threaded connection with the second lead screw 362. The Y-axis slide 31 is provided with a lead screw nut holder 311 on a side close to the Z-axis slide 34, and a lead screw nut 364 is fixed on the lead screw nut holder 311. The second motor 361 is started to drive the second lead screw 362 to rotate around the central axis thereof, and then drive the lead screw nut 364 to slide on the second lead screw 362, and as the lead screw nut 364 is fixed on the lead screw nut seat 324, the lead screw nut 364 is not moved and is converted into the movement of the second lead screw 362; and the second lead screw 362 moves to drive the Z-axis sliding plate 34, the main spindle box 35 on the Z-axis sliding plate 34 and the main spindle 33 to move up and down. The Z-axis driving assembly 36 is arranged in such a way that the Z-axis driving assembly can be conveniently installed on the Z-axis sliding plate 34, and the screw rod transmission has the advantages of higher transmission efficiency, smoother movement, higher positioning precision, longer service life and the like.

Further, the utility model also comprises a YZ axis drag chain 4; the upright post 2 is provided with an accommodating frame 27 for accommodating the YZ-axis drag chain 4, and the Z-axis sliding plate 34 is provided with a drag chain connecting piece 341; both ends of the YZ-axis drag chain 4 are respectively connected with the drag chain connector 341 and the accommodating frame 27.

The machine tool drag chain is used for protecting cables, oil pipes and gas pipes used by a machine tool, is suitable for being used in reciprocating occasions, and can play a role in dragging and protecting the built-in cables, oil pipes, gas pipes, water pipes and the like. In the embodiment, the upright post 2 is provided with an accommodating frame 27, and the width of the accommodating frame 27 is greater than or equal to that of the YZ-axis drag chain 4; a drag chain connector 341 is arranged on the Z-axis sliding plate 34; two ends of the YZ-axis drag chain 4 are respectively connected with the drag chain connecting piece 341 and the containing frame 27; when the Z-axis slide 34 moves relative to the column 2 (i.e., the main shaft 33 moves in the Y-axis direction), the YZ-axis drag chain 4 is lifted or spread within the accommodating frame 27. YZ axle tow chain 4 can get up the required cable of motion in Y axle and the Z axle direction, oil pipe and trachea etc. protection, can save the cost, and the line mode of walking with the difference makes the inside linkage of lathe more laminate again.

Further, the machining mechanism 3 further comprises an X-axis sliding plate 37, the X-axis sliding plate 37 is slidably mounted on the bed 1, and the column 2 is mounted on the X-axis sliding plate 37; the X-axis sliding plate 37 is provided with a tool magazine 5, and the tool magazine 5 is located in the accommodating cavity 21.

As mentioned above, the column 2 is slidably disposed on the bed 1, specifically, the third linear guide 11 is disposed on the bed 1, and the X-axis sliding plate 37 is slidably disposed on the third linear guide 11; the column 2 is then mounted on the X-axis slide 37. A tool magazine 5 is arranged on the X-axis sliding plate 37, and the tool magazine 5 is used for storing tools of different types; the tool magazine 5 is located and holds the chamber 21, and the tool magazine 5 imbeds in stand 2 promptly, and processing agency 3 is located and holds the chamber 21 in, so the position setting of tool magazine 5 makes 3 tool changers of processing agency more convenient, and has saved the space, reduces the time of removal, waiting, and then has improved machining efficiency.

Further, a second linear guide 371 is disposed on the X-axis sliding plate 37, the extending direction of the second linear guide 371 is the same as the moving direction of the Y-axis sliding seat 31, and the tool magazine 5 is slidably disposed on the second linear guide 371.

In the process of processing a workpiece, the tool magazine 5 should be far away from a processing station on the bed 1 as far as possible, so that the tool magazine 5 is closer to the edge of the bed 1, specifically, the vertical support wall 231; when the spindle 33 needs to be replaced, the spindle 33 needs to be retracted to a position right above the X-axis sliding plate 37 to complete the removal of the tool from the tool magazine 5 for replacement. The tool magazine 5 is arranged to slide relative to the X axis, and the tool magazine 5 can move a certain distance to one side where the main shaft 33 is located when tools are changed, so that the moving stroke of the main shaft 33 is reduced, and the tool changing efficiency is improved; and the tool magazine 5 can move, so that the phenomenon that the stroke in the Y-axis direction needs to be increased due to the fact that the machining mechanism 3 needs to be too close to the side of the lathe bed 1 in the tool changing process is avoided, and the size of a machining center is larger.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A machining center with high stability and compact structure is characterized by comprising:

a bed body (1);

the vertical column (2) is arranged on the lathe bed (1), an accommodating cavity (21) is formed in the vertical column (2), and corresponding first linear guide rails (22) are arranged on the side walls of the vertical column (2) on the two sides of the accommodating cavity (21);

processing agency (3), its setting is in hold in the chamber (21), just processing agency (3) include Y axle slide (31), Y axle drive assembly (32) and install main shaft (33) on Y axle slide (31), install Y axle slide (31) slidable on first linear guide (22), install Y axle drive assembly (32) the upper end of stand (2) and with Y axle slide (31) transmission is connected.

2. A machining center with high stability and compact structure according to claim 1, characterized in that the upright (2) comprises a first supporting wall (23) and a second supporting wall (24) which are identical in structure and are oppositely arranged, and the first supporting wall (23) and the second supporting wall (24) are arranged at intervals to form the accommodating cavity (21).

3. A machining center with high stability and compact structure according to claim 2, characterized in that the first support wall (23) comprises a vertical support wall (231) and a transverse support wall (232), the vertical support wall (231) is slidably mounted on the machine bed (1), and the transverse support wall (232) is arranged at the upper end of the vertical support wall (231) and is perpendicular to the vertical support wall (231).

4. A machining center with high stability and compact structure as claimed in claim 1, characterized in that the side walls of the upright (2) at both sides of the accommodating cavity (21) are provided with supporting steps (26), and the first linear guide (22) is correspondingly mounted on the supporting steps (26).

5. A machining center with high stability and compact structure according to claim 1, characterized in that the Y-axis driving assembly (32) comprises a first motor (321), a first lead screw (322), a first supporting seat (323) and a lead screw-nut seat (324); the first motor (321) and the first supporting seat (323) are both arranged on the upright post (2); one end of the first screw rod (322) is mounted on the output end of the first motor (321), and the other end of the first screw rod can be rotatably mounted on the first supporting seat (323) around the central axis of the first screw rod (322); the screw rod nut seat (324) is installed on the Y-axis sliding seat (31) and is in threaded connection with the first screw rod (322).

6. A machining center with high stability and compact structure according to claim 1, characterized in that the machining mechanism (3) further comprises a Z-axis slide plate (34) and a main spindle box (35), the Z-axis slide plate (34) is slidably mounted on the Y-axis slide carriage (31), the main spindle box (35) is mounted on the lower end of the Z-axis slide plate (34), and the main spindle (33) is mounted on the main spindle box (35).

7. The machining center with high stability and compact structure as claimed in claim 6, wherein the machining mechanism (3) further comprises a Z-axis driving assembly (36) for driving the Z-axis sliding plate (34) to slide, the Z-axis driving assembly (36) comprises a second motor (361), a second lead screw (362), a second supporting seat (363) and a lead screw nut (364); the Y-axis sliding seat (31) is provided with a lead screw nut fixing seat (311); the second motor (361) and the second supporting seat (363) are installed on the Z-axis sliding plate (34); one end of the second screw rod (362) is mounted at the output end of the second motor (361), and the other end of the second screw rod can be rotatably mounted on the second supporting seat (363) around the central axis of the second screw rod (362); the lead screw nut (364) is installed on the lead screw nut fixing seat (311) and is in threaded connection with the second lead screw (362).

8. A machining center with high stability and compact structure according to claim 6, characterized by further comprising a YZ-axis drag chain (4); an accommodating frame (27) for accommodating the YZ-axis drag chain (4) is arranged on the upright post (2), and a drag chain connecting piece (341) is arranged on the Z-axis sliding plate (34); two ends of the YZ-axis drag chain (4) are respectively connected with the drag chain connecting piece (341) and the accommodating frame (27).

9. A machining center with high stability and compact structure according to claim 1, characterized in that the machining mechanism (3) further comprises an X-axis slide plate (37), the X-axis slide plate (37) is slidably mounted on the machine bed (1), and the column (2) is mounted on the X-axis slide plate (37); the X-axis sliding plate (37) is provided with a tool magazine (5), and the tool magazine (5) is located in the accommodating cavity (21).

10. A machining center with high stability and compact structure according to claim 9, characterized in that the X-axis sliding plate (37) is provided with a second linear guide rail (371), the extending direction of the second linear guide rail (371) is the same as the moving direction of the Y-axis sliding base (31), and the tool magazine (5) is slidably arranged on the second linear guide rail (371).