CN211490458U - Gantry type machining center's crossbeam mechanism - Google Patents
Gantry type machining center's crossbeam mechanism Download PDFInfo
- Publication number
- CN211490458U CN211490458U CN201922336431.6U CN201922336431U CN211490458U CN 211490458 U CN211490458 U CN 211490458U CN 201922336431 U CN201922336431 U CN 201922336431U CN 211490458 U CN211490458 U CN 211490458U
- Authority
- CN
- China
- Prior art keywords
- axis
- spindle
- screw pair
- box
- lead screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Machine Tool Units (AREA)
Abstract
The utility model discloses a beam mechanism of a gantry machining center, which comprises a beam box and a main shaft assembly arranged in the beam box, wherein Y-axis guide rail pairs are arranged on the top surface and the bottom surface of the beam box; the spindle assembly comprises an upper connecting plate and a lower connecting plate which are arranged oppositely, an upper fixing plate and a lower fixing plate, a Y-axis feeding mechanism and a spindle box, Z-axis guide rail pairs are arranged on two sides of the spindle box, a spindle motor, a coupler and a spindle are arranged in the spindle box, Y-axis sliding blocks are arranged on the upper connecting plate and the lower connecting plate, the upper fixing plate and the lower fixing plate are right-angle bent plates, the Z-axis sliding blocks are fixed at one ends of the upper fixing plate and the lower fixing plate, and the other ends of the. Compared with the prior art, the utility model provides a crossbeam mechanism directly couples together main shaft assembly through upper junction plate and lower junction plate and upper fixed plate and bottom plate, has reduced headstock occupation space, has good structural manufacturability, and overall structure rigidity is strong, is fit for modular design and batch production.
Description
Technical Field
The utility model relates to a planer-type machining center equipment technical field, concretely relates to planer-type machining center's crossbeam mechanism.
Background
Traditional planer-type machining center, its headstock is arranged on the lateral surface of crossbeam, and this kind of structural style, crossbeam can produce bending deformation under the effect of the gravity of headstock and axial cutting force, and then drive the headstock slope, destroy the static geometric accuracy of lathe.
Therefore, the central structure of the spindle box of the double-column vertical machining center provided by the chinese utility model patent CN202606882U comprises a lathe bed and a beam arranged on the lathe bed, wherein the beam is provided with a spindle for assembling the spindle box, and the spindle and the beam are assembled and connected through the central matching. The spindle box is arranged in the middle, the gravity and the axial cutting resistance of the spindle box act on the center of the cross beam, the bending of the cross beam is reduced, the dynamic geometric accuracy of a machine tool is improved, and the cross beam is symmetrically distributed in a thermal deformation mode due to the arrangement of the spindle box and the spindle in the middle. Through the utility model discloses a product of processing, the plane degree, the depth of parallelism and the straightness precision that hangs down of machined part increase. However, the utility model provides a double-column vertical machining center machine headstock central-positioned formula structure has following shortcoming:
(1) the spindle box and the cross beam are directly assembled and connected in a central matching manner, the section size of the spindle box needs to be adapted to the section size of the strip-shaped through hole in the center of the cross beam, and the spindle box is large in section and heavy in weight, so that the production cost is increased;
(2) the up-and-down movement of the main shaft in the Z-axis direction is directly realized by controlling the lifting of the main shaft, the rigidity of the main shaft is low, and the tool track connected with the lower end of the main shaft is easy to deviate due to the shaking in the up-and-down movement process, so that the precision of a processed workpiece is reduced;
(3) the Y-axis guide rail is arranged on the outer side of the cross beam, and a groove needs to be formed in the side face of the cross beam, so that the rigidity of the cross beam is reduced, and the cross beam is bent.
In view of this, it is necessary to improve a beam mechanism of a gantry machining center to reduce the occupied space and the overall cost of the beam mechanism, and to enhance the rigidity and stability of a process system composed of a beam and a spindle box.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the crossbeam mechanism headstock weight of current planer-type machining center is big, occupation space is big and the complete machine is with high costs, the rigidity of the processing system that crossbeam and headstock constitute and the poor problem of stability.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts as follows:
a beam mechanism of a gantry machining center comprises a beam box and a spindle assembly arranged in the beam box,
a group of Y-axis guide rail pairs are respectively arranged on the top surface and the bottom surface of the beam box;
the spindle assembly includes:
the Y-axis sliding block is arranged at each of the four corners of the bottom surface of the upper connecting plate and the top surface of the lower connecting plate;
the upper fixing plate and the lower fixing plate are arranged oppositely, the upper fixing plate and the lower fixing plate are right-angle bent plates, one end of each right-angle bent plate is fixed with the Z-axis sliding block, and the other end of each right-angle bent plate is fixed with the upper connecting plate and the lower connecting plate respectively;
the spindle box is of a box-type frame structure, a group of Z-axis guide rail pairs are respectively arranged on the left side and the right side of the spindle box, a spindle motor is arranged on the top surface of the spindle box, a spindle and a coupler are arranged in the spindle box, the upper end of the spindle is connected with the lower end of the spindle motor through the coupler, and the spindle is driven to work through the spindle motor;
and the Z-axis feeding mechanism is arranged on the upper connecting plate and the lower connecting plate, is fixed with the side surface of the spindle box and is used for driving the spindle box to move up and down along the Z-axis guide rail pair.
And the Y-axis feeding mechanism is perpendicular to the spindle box, is fixedly connected with the upper connecting plate and the lower connecting plate through a Y-axis nut seat to form a rigid frame, and is used for driving the spindle box to move left and right along the Y-axis guide rail pair.
In the scheme, the beam mechanism further comprises stand columns which are arranged at the left end and the right end of the beam box, the top surfaces of the stand columns are fixed with the bottom surface of the beam box, and an X-axis sliding block is arranged on the bottom surface of the stand columns; the inner side of the upright post is provided with a connecting lug and an inclined rib;
in this aspect, the Z-axis feed mechanism includes:
the Z-axis feeding motor is used for driving the Z-axis lead screw pair to rotate;
the Z-axis lead screw pair is a ball screw pair and comprises a Z-axis ball screw and a Z-axis ball nut, the top end of the Z-axis lead screw pair is connected with the Z-axis feeding motor through a coupling, and the bottom end of the Z-axis lead screw pair is arranged in a Z-axis bearing seat;
the bottom surface of the Z-axis motor base is fixed with the top surface of the upper connecting plate, the Z-axis feeding motor is fixed on the top surface of the Z-axis motor base, and one end of the Z-axis lead screw pair is arranged in the Z-axis motor base;
the Z-axis bearing block is fixed with the bottom surface of the lower connecting plate; the Z-axis screw pair is connected with the Z-axis bearing seat through a bearing;
the top end of the Z-axis screw pair is in bidirectional positioning support with the Z-axis motor base through a locking nut, an angular contact ball bearing and a bearing gland, the bottom end of the Z-axis screw pair is connected with the Z-axis bearing seat through the angular contact ball bearing, and the support mode is simply supported.
In this embodiment, the Z-axis ball nut is fixed to the side surface of the spindle head through a Z-axis nut seat.
In the scheme, the Z-axis feeding mechanism is provided with an elastic cushion block for limiting the stroke of the Z-axis lead screw pair.
In this aspect, the Y-axis feed mechanism includes:
the Y-axis feeding motor is used for driving the Y-axis lead screw pair to rotate;
the Y-axis lead screw pair is a ball screw pair and comprises a Y-axis ball screw and a Y-axis ball nut; the top end of the Y-axis lead screw pair is connected with the Y-axis feeding motor through a coupling, and the bottom end of the Y-axis lead screw pair is arranged in a Y-axis bearing seat;
the Y-axis motor base is fixed at one end of the cross beam box, the Y-axis feeding motor is fixed on the top surface of the Y-axis motor base, and one end of the Y-axis lead screw pair is arranged in the Y-axis motor base;
the Y-axis bearing block is fixed at the other end of the beam box; the Y-axis lead screw pair is connected with the Y-axis bearing seat through a bearing;
the top end of the Y-axis lead screw pair is in bidirectional positioning support with the Y-axis motor base through a locking nut, an angular contact ball bearing and a bearing gland, and the bottom end of the Y-axis lead screw pair is in pretension support with the Y-axis bearing base.
In this scheme, the Y-axis ball nut is disposed in a Y-axis nut seat, and a top surface and a bottom surface of the Y-axis nut seat are fixed to the upper connecting plate and the lower connecting plate, respectively.
In the scheme, a cover plate is arranged on the side face of the spindle box.
In this scheme, the inboard of lock nut sets up the gasket.
Compared with the prior art, the utility model provides a crossbeam mechanism, headstock are box frame construction, are connected headstock part and crossbeam case through upper junction plate and lower connecting plate and the roller guide rail pair of setting on crossbeam case upper and lower face, and the cross-section of headstock only need with upper and lower connecting plate looks adaptation, has reduced the cross-section size of headstock. The utility model directly connects the Y-axis slide block and the Z-axis slide block through the upper connecting plate and the lower connecting plate as well as the upper fixing plate and the lower fixing plate, so that the space distance of the corresponding slide block is minimum, and the occupied space and the whole cost of the spindle box are reduced; and the Y-axis feeding mechanism is vertical to the spindle box and is fixedly connected with the upper connecting plate and the lower connecting plate through a Y-axis nut seat to form a rigid frame, so that the rigidity and stability of a process system formed by the beam and the spindle box are enhanced.
Drawings
Fig. 1 is a perspective view of the middle beam mechanism of the present invention;
FIG. 2 is a perspective view of the spindle box of the present invention;
FIG. 3 is a perspective view of another angle of the spindle head of the present invention;
fig. 4 is a perspective view of the main shaft assembly of the present invention;
fig. 5 is a perspective view of the center pillar of the present invention.
Detailed Description
The utility model provides a planer-type machining center's crossbeam mechanism has effectively solved overall structure's stable problem. The invention is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1, the cross beam mechanism of the gantry machining center provided by the present invention includes a cross beam box 10 and a spindle assembly 20 disposed in the cross beam box 10, and a column 30 is disposed on the bottom surface of the cross beam box 10. The top surface of the beam box 10 is provided with a group of upper Y-axis guide rail pairs 111, and the bottom surface of the beam box 10 is provided with a group of lower Y-axis guide rail pairs. Wherein, the X-axis direction is the direction vertical to the front side surface and the rear side surface of the beam box, the Y-axis direction is the direction vertical to the left side surface and the right side surface of the beam box, and the Z-axis direction is the direction vertical to the top surface and the bottom surface of the beam box
The spindle assembly 20 includes a headstock 21, a Z-axis feed mechanism 22, and a Y-axis feed mechanism 23, and the spindle assembly 20 is mounted in the beam box 10 by upper and lower connecting plates 24 and 25 and four upper and lower fixing plates 26 and 27.
As shown in fig. 2, the upper connecting plate 24 and the lower connecting plate 25 are annular, are arranged opposite to each other in the up-down direction, and are fitted over the spindle head 21. Four corners of the bottom surface of the upper connecting plate 24 are respectively provided with an upper Y-axis slider 240, the upper Y-axis slider 240 is matched with the upper Y-axis guide rail 111, four corners of the top surface of the lower connecting plate 25 are respectively provided with a lower Y-axis slider 250, the lower Y-axis slider 250 is matched with the lower Y-axis guide rail, the four upper Y-axis sliders 240 and the four lower Y-axis sliders 250 mount the spindle assembly 20 on the crossbeam box 10, and the spindle assembly 20 is driven by the Y-axis feeding mechanism 23 to move left and right along the Y-axis direction.
The upper fixing plate 26 and the lower fixing plate 27 are right-angled bent plates disposed opposite to each other in the vertical direction, and include fixing portions and slider mounting portions perpendicular to each other. The fixing portion of the upper fixing plate 26 is fixed to the top surface of the upper connecting plate 24 by bolts, and the fixing portion of the lower fixing plate 27 is fixed to the bottom surface of the lower connecting plate 25 by bolts. The slider mounting portions of the upper and lower fixing plates 26 and 27, on each of which a Z-axis slider 260 is fixed, are provided on the inner sides of the upper and lower connecting plates 24 and 25 and opposite to the left and right side surfaces of the headstock 21.
The main spindle box 21 is of a box-type frame structure, and horizontal reinforcing ribs are arranged between the vertical side edges. The left side and the right side of the headstock 21 are respectively provided with a group of Z-axis guide rail pairs 210, the Z-axis guide rail pairs 210 are matched with the Z-axis slide block 260, the headstock 21 is connected on the upper fixing plate 26 and the lower fixing plate 27 by the Z-axis guide rail pairs 210, and the headstock 21 is driven by the Z-axis feeding mechanism 22 to move up and down along the Z-axis direction. Referring to fig. 3 again, a spindle motor 211 is disposed on the top surface of the spindle box 21, a spindle 212 is disposed in the spindle box 21, the top end of the spindle 212 is connected to the spindle motor 211 through a coupling, the bottom end of the spindle 212 is connected to a machining tool, and the spindle motor 211 drives the spindle 212 to machine a part. The side of the main spindle box 21 is provided with a cover plate 213 for dust prevention.
As shown in fig. 2 and 3, the Z-axis feed mechanism 22 is provided in the upper connecting plate 24 and the lower connecting plate 25 in parallel with the headstock 21. The Z-axis feeding mechanism 22 includes a Z-axis screw pair 221, a Z-axis feeding motor 222 for driving the Z-axis screw pair 221 to rotate, a Z-axis motor base 223 and a Z-axis bearing base 224.
The Z-axis lead screw pair 221 is a ball screw pair, and includes a Z-axis ball screw and a Z-axis ball nut, and the top end of the Z-axis lead screw pair 221 is connected with the Z-axis feed motor 222 through a coupling. The top end of the Z-axis lead screw pair 221 is provided with a locking nut, an angular contact ball bearing and a bearing gland, the inner side of the locking nut is provided with a gasket, and the Z-axis lead screw pair 221 and the Z-axis motor base 223 are supported in a bidirectional positioning mode through the locking nut, the angular contact ball bearing and the bearing gland. The bottom end of the Z-axis screw pair 221 is provided with an angular contact ball bearing, and the Z-axis screw pair 221 and the Z-axis bearing seat 224 are simply supported and supported through the angular contact ball bearing. The Z-axis feed mechanism 22 is provided with an elastic pad for limiting the stroke of the Z-axis screw pair 221.
A Z-axis motor mount 223 is provided on the upper attachment plate 24, the top surface of which is fixed to the Z-axis feed motor 222, which is fixed to the top surface of the upper attachment plate 24. The Z-axis screw pair 221 is arranged in the Z-axis motor base 223, and the bottom end of the Z-axis screw pair 221 penetrates through the Z-axis motor base 223.
The Z-axis bearing seat 224 is a square connecting plate, one end of the Z-axis bearing seat 224 is fixed on the bottom surface of the lower connecting plate 25, the other end of the Z-axis bearing seat is provided with a through hole, and the Z-axis lead screw pair 221 is arranged in the through hole and is simply supported and supported with the Z-axis bearing seat 224 through an angular contact ball bearing.
The Z-axis lead screw pair 221 further includes a Z-axis nut seat 225, the Z-axis nut seat 225 is a right-angle bent plate and includes a fixing portion and a nut mounting portion, the fixing portion is fixed to the side face of the main spindle box 21, the nut mounting portion is matched with the Z-axis ball nut, the Z-axis ball nut is fixed to the nut mounting portion, and the Z-axis ball nut is fixed to the side face of the main spindle box 21 through the Z-axis nut seat 225. The Z-axis feed motor 222 drives the Z-axis screw pair 221 to rotate, so that the Z-axis ball nut moves up and down along the Z-axis ball screw, thereby driving the main spindle box 21 to move up and down.
As shown in fig. 1 and 4, the Y-axis feed mechanism 23 is provided in the beam box 10 in parallel with the beam box 10. The Y-axis feeding mechanism 23 includes a Y-axis lead screw pair 231, a Y-axis feeding motor 232 for driving the Y-axis lead screw pair 231 to rotate, a Y-axis motor base 233, and a Y-axis bearing base 234.
The Y-axis lead screw pair 231 is a ball screw pair and comprises a Y-axis ball screw and a Y-axis ball nut, and the top end of the Y-axis lead screw pair 231 is connected with a Y-axis feeding motor 232 through a coupling. Two ends of the Y-axis lead screw pair 231 are provided with a locking nut, an angular contact ball bearing and a bearing gland, the inner side of the locking nut is provided with a gasket, the top end of the Y-axis lead screw pair 231 and the Y-axis motor base 223 are in bidirectional positioning support, and the bottom end of the Y-axis lead screw pair and the Y-axis bearing base are in pre-stretching support.
The Y-axis motor base 233 is cylindrical, a connecting piece is provided on the top surface thereof for fixing the Y-axis feed motor 231, and the bottom surface of the Y-axis motor base 233 is fixed to the left side surface of the beam box 21. The Y-axis bearing block 234 is cylindrical and fixed to the right side surface of the beam box 21, and the Y-axis lead screw pair 231 is inserted into the Y-axis bearing block 234.
The Y-axis lead screw pair 231 further includes a Y-axis nut seat 235, the Y-axis nut seat 235 is a sheet-shaped support, and is disposed parallel to the side surface of the main spindle box 21, and the top surface and the bottom surface thereof are fixed to the upper connecting plate 24 and the lower connecting plate 25, respectively, to form a rigid frame. The side of the Y-axis lead screw pair 231 protrudes outwards to form a Y-axis nut mounting seat, and the Y-axis ball nut is fixed in the Y-axis nut mounting seat. The Y-axis feed motor 232 drives the Y-axis screw pair 231 to rotate, so that the Y-axis ball nut moves along the Y-axis ball screw, and the main spindle box 21 is driven to move left and right along the Y-axis direction by the Y-axis nut seat 236.
As shown in fig. 1 and 5, the columns 30 are symmetrically disposed at the left and right ends of the bottom surface of the girder box 10, the top surface thereof is fixed to the top surface of the girder box 10, and the X-axis slider 31 is disposed on the bottom surface thereof. The upper end of the inner side of the upright post 30 extends inwards to form an ear plate 32, an inclined rib 33 is arranged between the ear plate 32 and the main body of the upright post 30, and the ear plate 32 can increase the contact area between the upright post 30 and the cross beam box 10, so that the structural rigidity and stability of the cross beam mechanism are improved. An X-axis feeding mechanism and an X-axis guide rail are arranged on the top surface of the machine body, an X-axis feeding mechanism mounting part 34 is arranged on the bottom surface of the upright column 30 in a downward protruding mode, and when the upright column 30 is mounted on the machine body of the machining center, the X-axis feeding mechanism is fixed with the upright column 30 through the X-axis feeding mechanism mounting part 34 so as to drive the beam mechanism to move back and forth along the X axis.
The utility model discloses a method of use (working process) as follows:
the beam mechanism is arranged on a column base of the gantry machining center body through a column 30, and an X-axis guide rail and an X-axis feeding mechanism are arranged on the column base. A machining tool is mounted on the end of the spindle 212, and a part to be machined is machined by driving the spindle motor 211. In the process of processing parts, the main spindle box 21 can move back and forth along the X-axis direction under the driving of an X-axis feeding mechanism arranged on the upright column 30, and an X-axis slide block 31 on the bottom surface of the upright column 30 slides back and forth on an X-axis guide rail so as to ensure that the beam mechanism moves stably in the X-axis direction; meanwhile, the Y-axis feeding mechanism 23 can drive the spindle box 21 to move left and right along the Y-axis guide rail, the Z-axis feeding mechanism 22 can drive the driving shaft 21 to move up and down along the Z-axis direction, and the Z-axis slider 260 slides along the Z-axis guide rail 210 so as to ensure that the beam mechanism moves stably in the Z-axis direction.
Compared with the prior art, the beam mechanism is assembled on the column base of the bed part of the gantry machining center through the column, and the column can be replaced on the bed of the gantry machining center with different column base heights, so that parts with different heights can be machined.
In this application, the headstock sets up in upper junction plate and lower junction plate, be connected with the crossbeam case through upper junction plate and lower junction plate and upper fixed plate and bottom plate, the cross-sectional size of headstock only need with the big or small looks adaptation of upper junction plate and lower junction plate can, needn't with the bar through-hole looks adaptation at crossbeam case center, consequently, can reduce the cross-sectional size of headstock, thereby alleviate the volume of headstock, reduce the weight of headstock, reduce the heavy burden and the manufacturing cost of crossbeam case.
In this application, through upper junction plate and lower connecting piece and upper fixed plate and bottom plate directly couple together Y axle slider and Z axle slider, the bottom surface of upper junction piece sets up Y axle slider, Z axle slider passes through the upper fixed plate to be fixed on upper junction piece, the top surface of bottom connection piece sets up down Y axle slider, Z axle slider passes through the bottom plate to be fixed on the lower connecting piece, go up Y axle slider and Z axle slider, distance is little between lower Y axle slider and the Z axle slider, the space size that crossbeam mechanism occupies has been reduced, the structure manufacturability and the bulk stiffness of crossbeam mechanism have been improved, be fit for module design and batch production.
In this application, Z axle feed mechanism and headstock parallel arrangement are connected with the headstock in upper junction plate and lower junction plate through Z axle nut seat, reciprocate along the Z axle direction through the headstock and realize reciprocating of main shaft, have good structural stability, prevent that the main shaft from processing the orbit at the removal in-process and taking place the skew, can improve the accuracy nature of processing the part.
In this application, Y axle feed mechanism sets up in the crossbeam case to set up perpendicularly with the headstock, form rigid frame through Y axle nut seat and last connecting piece and lower connecting piece fixed connection, need not set up the fluting in the side of crossbeam case, guaranteed crossbeam case side structure's integrality, improved the structural rigidity of crossbeam case, avoid the crossbeam case to take place to buckle. The rigidity and the stability of a process system consisting of the beam and the main spindle box are enhanced
In this application, Z axle lead screw is vice and Y axle lead screw is vice all to be ball screw, and it removes to drive ball nut through ball screw rotation, makes the headstock remove along Z axle and Y axle, turns into linear motion with rotary motion, and the friction loss is little, transmission efficiency is high, has improved the degree of control of machining center to the main shaft position, has improved the machining precision of work piece.
The spindle box is of a frame structure, and the horizontal reinforcing ribs are arranged between the vertical side edges of the spindle box, so that the structural rigidity of the spindle box is improved, the overall weight of the spindle box is reduced, the production cost is reduced, the bearing pressure of the beam box is reduced, and the flexibility of the beam mechanism is improved.
The present invention is not limited to the above-mentioned best mode, and any person should learn the structural change made under the teaching of the present invention, all with the present invention has the same or similar technical solution, all fall into the protection scope of the present invention.
Claims (9)
1. A beam mechanism of a gantry machining center comprises a beam box and a spindle assembly arranged in the beam box, and is characterized in that,
a group of Y-axis guide rail pairs are respectively arranged on the top surface and the bottom surface of the beam box;
the spindle assembly includes:
the Y-axis sliding block is arranged at each of the four corners of the bottom surface of the upper connecting plate and the top surface of the lower connecting plate;
the upper fixing plate and the lower fixing plate are arranged oppositely, the upper fixing plate and the lower fixing plate are right-angle bent plates, one end of each right-angle bent plate is fixed with the Z-axis sliding block, and the other end of each right-angle bent plate is fixed with the upper connecting plate and the lower connecting plate respectively;
the spindle box is of a box-type frame structure, a group of Z-axis guide rail pairs are respectively arranged on the left side and the right side of the spindle box, a spindle motor is arranged on the top surface of the spindle box, a spindle and a coupler are arranged in the spindle box, the upper end of the spindle is connected with the lower end of the spindle motor through the coupler, and the spindle is driven to work through the spindle motor;
the Z-axis feeding mechanism is arranged on the upper connecting plate and the lower connecting plate, is fixed with the side surface of the spindle box and is used for driving the spindle box to move up and down along the Z-axis guide rail pair;
and the Y-axis feeding mechanism is perpendicular to the spindle box, is fixedly connected with the upper connecting plate and the lower connecting plate through a Y-axis nut seat to form a rigid frame, and is used for driving the spindle box to move left and right along the Y-axis guide rail pair.
2. The beam mechanism according to claim 1, further comprising columns provided at left and right ends of the beam box, top surfaces of which are fixed to a bottom surface of the beam box, and bottom surfaces of which are provided with X-axis sliders; the upper end of the inner side of the upright post is provided with an ear plate and an inclined rib.
3. The beam mechanism of claim 1 wherein the Z-axis feed mechanism comprises:
the Z-axis feeding motor is used for driving the Z-axis lead screw pair to rotate;
the Z-axis lead screw pair is a ball screw pair and comprises a Z-axis ball screw and a Z-axis ball nut, the top end of the Z-axis lead screw pair is connected with the Z-axis feeding motor through a coupling, and the bottom end of the Z-axis lead screw pair is arranged in a Z-axis bearing seat;
the bottom surface of the Z-axis motor base is fixed with the top surface of the upper connecting plate, the Z-axis feeding motor is fixed on the top surface of the Z-axis motor base, and one end of the Z-axis screw pair is arranged in the Z-axis motor base;
the Z-axis bearing block is fixed with the bottom surface of the lower connecting plate; the Z-axis screw pair is connected with the Z-axis bearing seat through a bearing;
the top end of the Z-axis screw pair is in bidirectional positioning support with the Z-axis motor base through a locking nut, an angular contact ball bearing and a bearing gland, the bottom end of the Z-axis screw pair is connected with the Z-axis bearing seat through the angular contact ball bearing, and the support mode is simply supported.
4. The traverse mechanism of claim 3, wherein the Z-axis ball nut is fixed to a side surface of the headstock by a Z-axis nut mount.
5. The beam mechanism of claim 3 wherein the Z-axis feed mechanism includes a spring pad for limiting travel of the Z-axis lead screw pair.
6. The beam mechanism of claim 1 wherein the Y-axis feed mechanism comprises:
the Y-axis feeding motor is used for driving the Y-axis lead screw pair to rotate;
the Y-axis lead screw pair is a ball screw pair and comprises a Y-axis ball screw and a Y-axis ball nut; the top end of the Y-axis lead screw pair is connected with the Y-axis feeding motor through a coupling, and the bottom end of the Y-axis lead screw pair is arranged in a Y-axis bearing seat;
the Y-axis motor base is fixed at one end of the cross beam box, the Y-axis feeding motor is fixed on the top surface of the Y-axis motor base, and one end of the Y-axis lead screw pair is arranged in the Y-axis motor base;
the Y-axis bearing block is fixed at the other end of the beam box; the Y-axis lead screw pair is connected with the Y-axis bearing seat through a bearing;
the top end of the Y-axis lead screw pair is in bidirectional positioning support with the Y-axis motor base through a locking nut, an angular contact ball bearing and a bearing gland, and the bottom end of the Y-axis lead screw pair is in pretension support with the Y-axis bearing base.
7. The beam mechanism according to claim 6 wherein the Y-axis ball nut is disposed within a Y-axis nut seat, the top and bottom surfaces of the Y-axis nut seat being secured to the upper and lower attachment plates, respectively.
8. The traverse mechanism of claim 1, wherein a cover plate is provided on a side surface of the spindle head.
9. Cross-beam mechanism according to claim 3 or 6, wherein a washer is provided on the inner side of the locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922336431.6U CN211490458U (en) | 2019-12-23 | 2019-12-23 | Gantry type machining center's crossbeam mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922336431.6U CN211490458U (en) | 2019-12-23 | 2019-12-23 | Gantry type machining center's crossbeam mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211490458U true CN211490458U (en) | 2020-09-15 |
Family
ID=72418507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922336431.6U Active CN211490458U (en) | 2019-12-23 | 2019-12-23 | Gantry type machining center's crossbeam mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211490458U (en) |
-
2019
- 2019-12-23 CN CN201922336431.6U patent/CN211490458U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202715863U (en) | General double-Y-axis numerically-controlled planer type milling machine | |
| EP3045263B1 (en) | Machine tool | |
| CN212193154U (en) | Light high-rigidity gantry truss | |
| CN211414524U (en) | Five supporting legss for digit control machine tool with shockproof function | |
| CN211490458U (en) | Gantry type machining center's crossbeam mechanism | |
| CN2393733Y (en) | 3D computer carving machine | |
| KR102165419B1 (en) | X-axis transfering device of machine tool | |
| CN110860914A (en) | Gantry type machining center's crossbeam mechanism | |
| CN202479698U (en) | Leaned plane motion working table of laser cutting machine | |
| CN218612804U (en) | Double-gantry double-station driving structure | |
| CN208788130U (en) | A kind of coaxial-type weight bearing balancing device | |
| CN202192489U (en) | Transmission bracket mechanism for long X-axis lead screws of gantry machine tool | |
| CN215392687U (en) | High-precision routing machine | |
| CN115770915A (en) | Gantry machining unit of electric discharge machine tool | |
| CN212665433U (en) | Transverse moving system of integral double-beam gantry milling machine and embedded ram fixing structure thereof | |
| CN211028705U (en) | Movable welding gun device | |
| CN210026852U (en) | Engraving machine | |
| JP4880956B2 (en) | Press drive device | |
| CN206622843U (en) | A kind of double Y-axis process equipments | |
| CN215999473U (en) | Moving mechanism applied to five-axis machining center | |
| CN213053077U (en) | Engraver with antidetonation mechanism | |
| CN211489649U (en) | Beam structure with front spindle box | |
| CN212918435U (en) | Vertical movable column machining center | |
| CN205465201U (en) | Desktop formula longmen digit control machine tool | |
| CN217831999U (en) | Y-axis synchronous lifting mechanism and right-handed milling and boring machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |