CN202655895U - Gantry machining centre - Google Patents
Gantry machining centre Download PDFInfo
- Publication number
- CN202655895U CN202655895U CN 201220157742 CN201220157742U CN202655895U CN 202655895 U CN202655895 U CN 202655895U CN 201220157742 CN201220157742 CN 201220157742 CN 201220157742 U CN201220157742 U CN 201220157742U CN 202655895 U CN202655895 U CN 202655895U
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- CN
- China
- Prior art keywords
- milling head
- boring
- driven
- gantry frame
- crossbeam
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a gantry machining centre, which is composed of a gantry frame consisting of a tool body, a vertical column and a cross beam, a movable cross beam, a workbench, a boring-milling head and a side-milling head, wherein the movement of the gantry frame is driven by using a rack and by virtue of the driving for a planetary speed reducer of a servo motor; the movement of the slide seat of the gantry frame on the tool body is driven by using a linear guideway; and the transmission of the slide seat of the gantry frame on the movable cross beam is driven by a ball screw, and the sliding of the slide seat of the boring-milling head on the movable cross beam is driven by using a hydrostatic guideway system. According to the utility model, because the gantry frame is driven by using the servo motor and uses the linear guideway, and the planetary speed reducer belongs to an anti-backlash gear speed reducer, thus being large in output torque and stable in running; and the boring-milling head uses the ball screw and the hydrostatic guideway system, the ball screw is advanced in process, good in wear resistance and small in forward and reverse backlash error, and a hydrostatic guideway drives the slide seat to move by virtue of the floating of an oil film, has a small friction force, ensures an equal pressure at every place, and runs stably.
Description
Technical field
The utility model relates to the type process equipment, relates in particular to gantry machining center.
Background technology
The portal frame that the gantry machining center that uses at present is comprised of lathe bed, column and crossbeam, moving crossbeam, workbench, the first-class composition of vertical boring and milling head outer and side milling.
Above-mentioned lathe bed is the support component that is fixed on the ground, and it is supporting portal frame, makes portal frame drive moving crossbeam, vertical boring and milling head outer and side milling head and moves at lathe bed.Travelling mechanism is, guide rail is installed on the lathe bed, and the longitudinal slide case is installed on the column, and slide plate inside has and drives the drive system that portal frame moves, and drive system is comprised of threephase asynchronous and drive track wheel, and the drive track wheel moves at bed ways.
On two heel posts of above-mentioned portal frame moving crossbeam is installed, moving crossbeam is used for installing boring and milling head outer, and moving crossbeam moves up and down along column with boring and milling head outer.Travelling mechanism is that the column front is provided with the guide rail that moving crossbeam moves up and down, the trapezoidal screw mechanism that the centre of column has the confession crossbeam to move up and down.Trapezoidal screw mechanism is driven by the reductor at crossbeam two ends, and trapezoidal screw mechanism drives moving crossbeam and moves up and down.
Above-mentioned boring and milling head outer is installed on the guide rail sliding plate of moving crossbeam front side, and the left-hand end of crossbeam is equipped with the driving box that drives the boring and milling head outer transverse shifting, is provided with common reductor in the driving box, and reductor drives trapezoidal screw, is driving the boring and milling head outer transverse movement.
Boring and milling head outer is the major impetus element of machining center, is comprised of axis system, main transmission, cutter and annex clamp mechanism.Axis system and cutter and annex clamp mechanism are contained in the ram, and main transmission moves up and down with ram together on the top of ram.Main shaft is installed in the center of ram, is connected with main transmission with tensioning sleeve.Main transmission by common reductor with transmission of power to main shaft, realize principal cutting movement.
A side milling built-in beam is equipped with respectively in the back of two columns, with the key location, is fixedly connected with the formation frame structure with bolt between a side milling built-in beam and two columns, and the side milling head is installed in the column rear side, can move up and down along column.
Tradition gantry machining center tool mainly contains following defective: 1. the threephase asynchronous output torque is little; Affect machining accuracy, 2. common reductor transferring power is not steady, and noise is large; The trapezoidal screw precision is low, wears no resistance; 3. common rail belongs to the strong lubricating sliding friction, and guide rail is yielding, affects machining accuracy.
Summary of the invention
The purpose of this utility model is the various deficiencies that exist for traditional gantry machining center, through improving, provides a kind of novel gantry machining center.
For achieving the above object the portal frame that the utility model gantry machining center is comprised of lathe bed, column and crossbeam, moving crossbeam, workbench, boring and milling head outer and side milling head composition; It is characterized in that,
Portal frame moves and adopts tooth bar and lean on servomotor band planetary reducer to drive; The portal frame slide is at the mobile line slideway that adopts of lathe bed; The transmission of portal frame slide on moving crossbeam is ball-screw, and the boring and milling head outer slide adopts hydrostatic guide rail system in the slip of moving crossbeam simultaneously.
The advantage of the utility model gantry machining center: because portal frame adopts driven by servomotor and line slideway system, planetary reducer belongs to the clearance elimination gear reductor, so output torque is large, operates steadily; Boring and milling head outer adopts ball-screw and hydrostatic guide rail system, and ball-screw technique is advanced, and wearability is good, and forward and reverse gap error is little, and hydrostatic slideway drives slide by the oil film buoyance lift and moves, and frictional force is little and guarantee that every place pressure equates, operates steadily.
Description of drawings
Fig. 1 is that the master of the utility model embodiment looks schematic diagram;
Fig. 2 is that schematic diagram is looked on the left side of the utility model embodiment.
Marginal data, the 1-lathe bed, the 2-workbench, the vertical boring and milling head outer of 3-, 4-moves crossbeam, 5-ram, 6-column, 7-crossbeam, 8-line slideway.
The specific embodiment
Shown in Fig. 1-2, the portal frame that gantry machining center of the present utility model is comprised of lathe bed 1, column 6 and crossbeam 7, moving crossbeam 4, workbench 2, vertical boring and milling head outer 3 and side milling head form; Above-mentioned lathe bed 1 is the support component that is fixed on the ground, and it is supporting portal frame, makes portal frame drive moving crossbeam 4, vertical boring and milling head outer 3 and side milling head in lathe bed 1 operation.Travelling mechanism is, line slideway 8 is installed on the lathe bed 1, the longitudinal slide case is installed on the column 6, the drive system that slide plate inside has the driving portal frame to move, drive system is comprised of servomotor, star reductor and drive track wheel, and the drive track wheel moves by tooth bar at line slideway 8; Moving crossbeam 4 is installed on two heel posts 6 of above-mentioned portal frame, moving crossbeam 4 is used for installed vertical boring and milling head outer 3, moving crossbeam 4 moves up and down along column 1 with boring and milling head outer 3, travelling mechanism is, the column front is provided with the guide rail that moving crossbeam 4 moves up and down, there is the trapezoidal screw mechanism that moves up and down for moving crossbeam 4 centre of column 1, and trapezoidal screw mechanism is driven by the reductor at crossbeam two ends, and trapezoidal screw mechanism drives moving crossbeam 4 and moves up and down; Above-mentioned boring and milling head outer 3 is installed on the guide rail sliding plate of moving crossbeam 4 front sides, the left-hand end of moving crossbeam 4 is equipped with the driving box that drives vertical boring and milling head outer 3 transverse shiftings, moving crossbeam 4 is provided with hydrostatic guide rail system, the slide of vertical boring and milling head outer 3 is ball-screw at moving crossbeam 4 upper drivings, and the slide of vertical boring and milling head outer 3 laterally slides on hydrostatic slideway.
Boring and milling head outer 3 is major impetus elements of machining center, is comprised of axis system, main transmission, cutter and annex clamp mechanism.Axis system and cutter and annex clamp mechanism are contained in the ram, and main transmission moves up and down with ram together on the top of ram.Main shaft is installed in the center of ram, is connected with main transmission with tensioning sleeve.Main transmission by common reductor with transmission of power to main shaft, realize principal cutting movement.
A side milling built-in beam is equipped with respectively in the back of two columns, with the key location, is fixedly connected with the formation frame structure with bolt between a side milling built-in beam and two columns 6, and the side milling head is installed in column 6 rear sides, can move up and down along column 6.
Claims (1)
1. gantry machining center, the portal frame that it is comprised of lathe bed, column and crossbeam, moving crossbeam, workbench, boring and milling head outer and side milling head form; It is characterized in that portal frame moves and adopts tooth bar and lean on servomotor band planetary reducer to drive; The portal frame slide is at the mobile line slideway that adopts of lathe bed; The transmission of portal frame slide on moving crossbeam is ball-screw, and the boring and milling head outer slide adopts hydrostatic guide rail system in the slip of moving crossbeam simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220157742 CN202655895U (en) | 2012-04-14 | 2012-04-14 | Gantry machining centre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220157742 CN202655895U (en) | 2012-04-14 | 2012-04-14 | Gantry machining centre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202655895U true CN202655895U (en) | 2013-01-09 |
Family
ID=47450828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220157742 Expired - Fee Related CN202655895U (en) | 2012-04-14 | 2012-04-14 | Gantry machining centre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202655895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159888A (en) * | 2017-06-28 | 2017-09-15 | 南京中科煜宸激光技术有限公司 | A kind of gantry metal rapidform machine |
-
2012
- 2012-04-14 CN CN 201220157742 patent/CN202655895U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159888A (en) * | 2017-06-28 | 2017-09-15 | 南京中科煜宸激光技术有限公司 | A kind of gantry metal rapidform machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20140414 |