CN202964004U - Stick-slip preventive large-size gantry movable boring-milling machining center - Google Patents
Stick-slip preventive large-size gantry movable boring-milling machining center Download PDFInfo
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- CN202964004U CN202964004U CN 201220720847 CN201220720847U CN202964004U CN 202964004 U CN202964004 U CN 202964004U CN 201220720847 CN201220720847 CN 201220720847 CN 201220720847 U CN201220720847 U CN 201220720847U CN 202964004 U CN202964004 U CN 202964004U
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- gear
- lathe bed
- guide rail
- crossbeam
- column
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Abstract
A stick-slip preventive large-size gantry movable boring-milling machining center comprises a lathe bed (1), linear guide rails (11), stand columns (3), a beam (4), a workbench (12), horizontal linear guide rails (6), a sliding seat (7), a movable sliding rest (9), a spindle box (10), balance bars (8) and a double-output anti-backlash mechanism (2). The stand columns are mounted on two sides of the lathe bed, and can be moved along the guide rails. The beam is arranged on top of the stand columns. The workbench is positioned among the stand columns. The horizontal linear guide rails are arranged on lateral sides of the beam. The sliding seat is mounted to match with the beam, the sliding rest is movably mounted on the sliding seat, and the spindle box is arranged on the sliding rest. The balance bars are symmetrically arranged on two sides of the sliding rest and connected with the sliding rest. The double-output anti-backlash mechanism for eliminating gear backlashes is arranged on a stand column base. The double-output anti-backlash mechanism comprises an output gear (2b), a tension gear (2a), a horizontal gear rack (2d) and a shaft coupler (2c). The output gear and the tension gear are horizontally arranged on the same plane. The horizontal gear rack is meshed with both the output gear and the tension gear, and mounted on the lathe bed. The upper ends of the shafts of both the output gear and the tension gear are coupled with the shaft coupler coupled with the same horizontal shaft. The boring-milling machining center can avoid stick-slips when the stand columns are moved; can improve part manufacturing accuracy; and is convenient to machine and manufacture, and reasonable and reliable in structure.
Description
Technical field
The utility model relates to the portable boring-milling center technical field of structures of a kind of large-sized gantry framework.
Background technology
The portable boring-milling center of existing large-sized gantry framework is because gantry span is large, and column quality mobile on lathe bed is large, the rigidity requirement is high, and machining accuracy is not high is the difficult problem of this kind lathe always.The feed system of this class lathe adopts traditional gear drive at present, and during the wheel and rack contact, contact-making surface is close contact, with transferring power.But inevitably there are the gap in the another side of gear and tooth bar, and when gear counter-rotated, this gap can't be eliminated, and show as the direction gap of whole transmission mechanism.Steady phenomenon of speed usually can occur in low cruise, namely produce and creep, make the element precision after processing be subject to large impact.
Summary of the invention
The purpose of this utility model is to solve the problem that above-mentioned prior art exists, provide a kind of the generation when avoiding column to move creep, can improve part processing precision and be convenient to processing and manufacturing, the portable boring-milling center of the large-sized gantry framework of reliability rational in infrastructure.
The purpose of this utility model is achieved through the following technical solutions.
can avoid the portable boring-milling center of the large-sized gantry framework of creeping, comprise lathe bed, be arranged on the line slideway on lathe bed, what be installed on lathe bed both sides passes through to be arranged at the column that the guide rail on lathe bed can move along X-direction, be positioned at the middle workbench of two heel posts, be installed on the crossbeam on column top, be arranged at the horizontal linear guide rail of crossbeam side, by horizontal linear guide rail and crossbeam equipped slide mutually, be fitted on slide the ram that can move along Z-direction, be installed on the main spindle box on ram, the balancing pole that is symmetricly set in the ram both sides and is connected with ram along Z-direction, be provided with the dual output gear clearance elimination mechanism that to eliminate gear clearance on upright post base, comprise and be horizontally placed on conplane output gear and Tension gear, simultaneously with the horizontal rack of output gear and Tension gear engagement, the central shaft upper end of output gear and Tension gear all be connected in same shaft coupling on trunnion axis and connect, horizontal rack is arranged on lathe bed.。
Horizontal rack described in the utility model is diagonal-cut rack.Lathe bed adopts the structure of at least two sections splicings, leaves to splice the gap between the both ends of the surface of splicing place, is processed with one group of dowel hole of corresponding cooperation on both ends of the surface, and being perfused with in splicing the gap can quick-setting high strength colloid.Column connects by the wedge type guiding mechanism with crossbeam, and being perfused with in the gap between column and crossbeam can quick-setting high strength colloid.The side-locating face of the main guide rail of guide rail directly contacts with the side locating surface of lathe bed, leaves the one section gap that can pour into quick-setting high strength colloid between the side-locating face of secondary guide rail and the locating surface on lathe bed.
The utility model is owing to having adopted the dual output gear clearance elimination mechanism that can eliminate gear clearance, can make Tension gear rotate an angle with respect to output gear by the pretension shaft coupling, thereby reach the purpose of eliminating backlass, produce when avoiding column to move and creep, guarantee the precision of processing work.Tooth bar adopts helical teeth, makes transmission more steady, and driving moment is larger, and when improving translational speed, the deflection that has produced when having reduced gantry-travelling has also reduced the possibility of creeping.
The utility model adopts the structure of lathe bed multistage splicing, can solve prior art excessive due to lathe bed wide long processing place of bringing, and needs the problem of large-sized processing equipment.Adopt encapsulating to connect in splicing place, coordinate alignment pin, can fill up the irregular spacing between splicing place both ends of the surface, realize high being rigidly connected and accurate location.
The side-locating face that the utility model is taked main guide rail directly contacts with lathe bed side locating surface, and the side-locating face of secondary guide rail does not contact with locating surface on lathe bed, but leaves an intersegmental gap; During assembling take main guide rail as the benchmark alignment secondary guide rail, inject high strength rapid curing glue at gap location, namely realized the lateral register of secondary guide rail after adhesive curing.
The adjustment mode is installed in the utility model column and crossbeam junction employing easily, leave the gap between column and crossbeam, adjust the position of crossbeam by the wedge type guiding mechanism, to be adjusted complete after, inject quick-setting high strength glue at gap location, lock again attachment screw after glue has been done.Can guaranteeing to connect difficulty of processing and the assembly difficulty that reduces to greatest extent crossbeam and column joint face on the basis of rigidity and required precision, improve greatly efficiency of assembling like this.
Further set forth the utility model content below in conjunction with Figure of description.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is left view of the present utility model;
Fig. 3 is dual output gear clearance elimination mechanism of the present utility model;
Fig. 4 is the schematic diagram of splicing machine tool;
Fig. 5 is the partial enlarged drawing of the guide rail in Fig. 2;
Fig. 6 is the scheme of installation of column and crossbeam.
The specific embodiment
as Fig. 1, shown in 2, the utility model comprises lathe bed 1, be arranged on the line slideway 11 on lathe bed, what be installed on lathe bed 1 both sides passes through to be arranged at the column 3 that the guide rail 11 on lathe bed can move along X-direction, be positioned at the two middle workbench 12 of heel posts 3, be installed on the crossbeam 4 on column 3 tops, column 3 adopts convenient installations to adjust modes with crossbeam 4 junctions by wedge type reconditioner 5, be arranged at the horizontal linear guide rail 6 of crossbeam 4 sides, by horizontal linear guide rail 6 and crossbeam 4 equipped slide 7 mutually, be fitted on slide 7 ram 9 that can move along Z-direction, be installed on the main spindle box 10 on ram 9, the nitrogen balance bar 8 that is symmetricly set in ram 9 both sides and is connected with ram along Z-direction.
As shown in Figure 3, the utility model is for guaranteeing repetitive positioning accuracy, selected the elimination gear clearance dual output gear clearance elimination mechanism 2 that is arranged on column 3, comprise and be horizontally placed on conplane output gear 2b and Tension gear 2a, simultaneously with the horizontal rack 2d on lathe bed 1 of being arranged on of output gear 2b and Tension gear 2a engagement, the central shaft upper end of output gear 2b and Tension gear 2a all be connected in same shaft coupling 2c on trunnion axis and connect, the length of horizontal rack 2d is identical with the stroke of lathe.For offsetting gear clearance, dual drive system driver output gear 2b and Tension gear 2a have respectively been adopted.Make Tension gear 2a rotate an angle with respect to output gear 2b by pretension shaft coupling 2c, thereby reach the purpose of eliminating backlass.Rack-and-pinion adopts helical teeth, makes transmission more steady, and driving moment is larger, when improving translational speed, and the deflection that has produced when having reduced gantry-travelling, the possibility of " the creeping " that has also reduced to bring thus.
As shown in Figure 4, lathe bed 1 adopts the structure of at least two sections splicings, in actual production, usually adopts the structure of three sections splicings.Leave splicing gap 1a between the both ends of the surface of splicing place, be processed with one group of dowel hole 1b of corresponding cooperation on both ends of the surface, after by alignment pin, each section workbench connection adjustment being reached every splicing required precision, perfusion can quick-setting high strength colloid in splicing gap 1a, each section workbench is spliced into one, colloid has namely been filled up irregular spacing between both ends of the surface after solidifying, and has realized that height is rigidly connected.The setting position of dowel hole 1b and quantity are determined according to actual needs, generally in the both sides of end face, several are set evenly longitudinally, laterally several are set evenly also on the end face edge.
As shown in Figure 5, the utility model is in 16 meters of lathe bed total lengths, the side-locating face depth of parallelism of guaranteeing 2 guide rails 11 standard-required with interior be very difficult, in order to overcome this difficulty, the side-locating face of taking main guide rail directly contacts with lathe bed side locating surface, the side-locating face of secondary guide rail does not contact with locating surface on lathe bed, but leaves an intersegmental gap 11a; During assembling take main guide rail as the benchmark alignment secondary guide rail, can quick-setting high strength colloid in the injection of 11a place, gap, namely realized the lateral register of secondary guide rail after adhesive curing.
As shown in Figure 6, the utility model column 3 and crossbeam 4 junctions realize that by wedge type guiding mechanism 5 convenient installation adjusts mode, leave the gap 3a of 0.5～1mm between column 3 and crossbeam 4, adjust the position of crossbeam 4 by wedge type adjustment block 5b, to be adjusted complete after, injecting at 3a place, gap can quick-setting high strength colloid, and colloid is locked attachment screw 5a after doing again.Can guaranteeing to connect difficulty of processing and the assembly difficulty that reduces to greatest extent crossbeam 4 and column 3 joint faces on the basis of rigidity and required precision, improve greatly efficiency of assembling like this.
Claims (5)
1. can avoid the portable boring-milling center of the large-sized gantry framework of creeping, comprise lathe bed (1), be arranged on the line slideway (11) on lathe bed, what be installed on lathe bed (1) both sides passes through to be arranged at the column (3) that the guide rail (11) on lathe bed can move along X-direction, be positioned at the middle workbench (12) of two heel posts, be installed on the crossbeam (4) on column top, be arranged at the horizontal linear guide rail (6) of crossbeam side, by horizontal linear guide rail and crossbeam equipped slide (7) mutually, be fitted on slide the ram (9) that can move along Z-direction, be installed on the main spindle box (10) on ram, the balancing pole (8) that is symmetricly set in the ram both sides and is connected with ram along Z-direction, it is characterized in that, be provided with the dual output gear clearance elimination mechanism (2) that to eliminate gear clearance on column (3) base, comprise and be horizontally placed on conplane output gear (2b) and Tension gear (2a), the horizontal rack (2d) that meshes with output gear (2b) and Tension gear (2a) simultaneously, the central shaft upper end of output gear and Tension gear all be connected in same shaft coupling (2c) on trunnion axis and connect, horizontal rack (2d) is arranged on lathe bed (1).
2. the portable boring-milling center of the large-sized gantry framework of creeping of avoiding according to claim 1, is characterized in that, described horizontal rack (2d) is diagonal-cut rack.
3. the portable boring-milling center of the large-sized gantry framework of creeping of avoiding according to claim 1 and 2, lathe bed (1) adopts the structure of at least two sections splicings, leave between the both ends of the surface of splicing place and splice gap (1a), be processed with one group of dowel hole (1b) of corresponding cooperation on both ends of the surface, being perfused with in splicing gap (1a) can quick-setting high strength colloid.
4. the portable boring-milling center of the large-sized gantry framework of creeping of avoiding according to claim 1 and 2, it is characterized in that, column (3) connects by wedge type guiding mechanism (5) with crossbeam (4), and being perfused with in the gap between column and crossbeam (3a) can quick-setting high strength colloid.
5. the portable boring-milling center of the large-sized gantry framework of creeping of avoiding according to claim 1 and 2, it is characterized in that, the side-locating face of the main guide rail of guide rail (11) directly contacts with lathe bed side locating surface, leaves the one section gap (11a) that can pour into quick-setting high strength colloid between the side-locating face of secondary guide rail and the locating surface on lathe bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220720847 CN202964004U (en) | 2012-12-24 | 2012-12-24 | Stick-slip preventive large-size gantry movable boring-milling machining center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220720847 CN202964004U (en) | 2012-12-24 | 2012-12-24 | Stick-slip preventive large-size gantry movable boring-milling machining center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202964004U true CN202964004U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220720847 Expired - Fee Related CN202964004U (en) | 2012-12-24 | 2012-12-24 | Stick-slip preventive large-size gantry movable boring-milling machining center |
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| CN (1) | CN202964004U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081854A (en) * | 2015-10-08 | 2015-11-25 | 张侃 | Device restraining crawling of machine tool guide rail |
| CN106624842A (en) * | 2017-02-16 | 2017-05-10 | 福建省正丰数控科技有限公司 | Bridge type gantry dual-layer guide mechanism |
| CN107511709A (en) * | 2017-09-06 | 2017-12-26 | 佛山市盈向精密机械科技有限公司 | A kind of gear rack anti-backlash structure |
| CN107617887A (en) * | 2016-07-14 | 2018-01-23 | 佛山市普拉迪数控科技有限公司 | A kind of long stroke lathe based on split type column |
| CN110370033A (en) * | 2019-08-15 | 2019-10-25 | 无锡洲翔成套焊接设备有限公司 | A kind of split type numerical control plane brill longitudinal movement locking device |
| CN111515759A (en) * | 2020-05-29 | 2020-08-11 | 江西吉米立机械科技有限公司 | Crown block type three-axis gantry machining center machine |
| CN118090766A (en) * | 2024-04-19 | 2024-05-28 | 东莞市兆丰精密仪器有限公司 | Chip detection equipment and debugging method |
-
2012
- 2012-12-24 CN CN 201220720847 patent/CN202964004U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081854A (en) * | 2015-10-08 | 2015-11-25 | 张侃 | Device restraining crawling of machine tool guide rail |
| CN107617887A (en) * | 2016-07-14 | 2018-01-23 | 佛山市普拉迪数控科技有限公司 | A kind of long stroke lathe based on split type column |
| CN106624842A (en) * | 2017-02-16 | 2017-05-10 | 福建省正丰数控科技有限公司 | Bridge type gantry dual-layer guide mechanism |
| CN107511709A (en) * | 2017-09-06 | 2017-12-26 | 佛山市盈向精密机械科技有限公司 | A kind of gear rack anti-backlash structure |
| CN110370033A (en) * | 2019-08-15 | 2019-10-25 | 无锡洲翔成套焊接设备有限公司 | A kind of split type numerical control plane brill longitudinal movement locking device |
| CN111515759A (en) * | 2020-05-29 | 2020-08-11 | 江西吉米立机械科技有限公司 | Crown block type three-axis gantry machining center machine |
| CN118090766A (en) * | 2024-04-19 | 2024-05-28 | 东莞市兆丰精密仪器有限公司 | Chip detection equipment and debugging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20181224 |