CN204123178U - The direct connection structure of gantry machining center main transmission - Google Patents
The direct connection structure of gantry machining center main transmission Download PDFInfo
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- CN204123178U CN204123178U CN201420526793.6U CN201420526793U CN204123178U CN 204123178 U CN204123178 U CN 204123178U CN 201420526793 U CN201420526793 U CN 201420526793U CN 204123178 U CN204123178 U CN 204123178U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 31
- 230000008878 coupling Effects 0.000 claims abstract description 20
- 238000010168 coupling process Methods 0.000 claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 claims abstract description 20
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 6
- 235000011613 Pinus brutia Nutrition 0.000 claims description 6
- 241000018646 Pinus brutia Species 0.000 claims description 6
- 238000003754 machining Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 206010057855 Hypotelorism of orbit Diseases 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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Abstract
The direct connection structure of gantry machining center main transmission, is characterized in that falling within main spindle box top by vertically folded to mair motor, dual-speed planet speed reducer; Main motor output shaft coaxially connects with dual-speed planet speed reducer, installs terminal pad between dual-speed planet speed reducer and main spindle box end face, uses bolt to be connected to together by three; Main axle unit is arranged in main spindle box base apertures; High torsional rigid shaft coupling two ends use elastic coupling to connect with the output shaft of dual-speed planet speed reducer and main axle unit power shaft respectively, by high torsional rigid shaft coupling, the moment of torsion that dual-speed planet speed reducer exports are passed to main axle unit.Advantage: 1. mair motor perfect heat-dissipating; 2. shorten driving-chain, the radial unbalance loading of the main axle unit that before eliminating, main transmission scheme exists, considerably reduces the vibration & noise of main axle unit; 3. reduce main spindle box requirement on machining accuracy and assembly difficulty, cost-saving.
Description
Technical field
The utility model relates to plant equipment and manufactures field, a kind of direct connection structure of gantry machining center main transmission.
Background technology
At present, the main transmission of gantry machining center and headstock structure layout are in the following ways: small box is arranged on before main spindle box by bolt and key, and main motor output shaft and reductor input by Flat dey joint, and are placed on small box upper surface; Main axle unit is arranged on bottom main spindle box in machining hole, and speed reducer output shaft is connected by belt wheel and synchronous cog belt with main axle unit, transmitting torque between two parallel axes.
There is shortcomings and deficiency in this layout, first, mair motor and main spindle box hypotelorism, mair motor heating passes to main spindle box by adjacent side, larger on thermal deformation of spindle box impact; Secondly, the asymmetric main spindle box side that causes of layout is heated, and temperature distortion is uneven, affects machining accuracy; Moreover, toothed belt transmission is used to be to solve power transmission problem between speed reducer output shaft and main axle unit power shaft two-parallel axis, and the tensile force of cog belt transmission addition of radial unbalance loading to main axle unit, increase the load of main axle unit middle (center) bearing, aggravation spindle vibration and noise.
At present, there is utility model patent " the direct-connected drive mechanism of gantry machining center main shaft ", notification number: CN203679903U.This utility model patent have employed main shaft direct connection structure, and main motor output shaft is connected by shaft coupling with main axle unit power shaft, and mair motor integral installation is inner at main spindle box.Although this design eliminates belt wheel and synchronous cog belt, propose main shaft direct connection structure, this utility model still has the following disadvantages:
1, mair motor entirety is placed in main spindle box inside, is unfavorable for that mair motor dispels the heat, and the heat overwhelming majority that mair motor is produced conducts to main spindle box, causes thermal deformation of spindle box serious, large on machine finish impact.2, on front side of main spindle box, open large scale gap, only consider to reduce processing and assembly difficulty, but have ignored this and main spindle box integral rigidity is reduced, under resistance to cutting effect, make main spindle box be out of shape aggravation, affect machining accuracy.
Summary of the invention
The purpose of this utility model is to provide a kind of direct connection structure of gantry machining center main transmission, mair motor is placed in main spindle box top, power passes to main axle unit by high torsional rigid shaft coupling, solve the problem such as main spindle box temperature distortion, spindle vibration noise, and ensure that main spindle box integral rigidity.
The direct connection structure of this gantry machining center main transmission, relates to reductor, mair motor and main spindle box, it is characterized in that falling within main spindle box top by vertically folded to mair motor, dual-speed planet speed reducer; Main motor output shaft coaxially connects with dual-speed planet speed reducer, connects closing by studs; Between dual-speed planet speed reducer and main spindle box end face, terminal pad is installed, uses bolt to be connected to together by three; Main axle unit is arranged in main spindle box base apertures, and uses bolt by main axle unit together with machined surface puts together on bottom main spindle box; High torsional rigid shaft coupling two ends use elastic coupling to connect with the output shaft of dual-speed planet speed reducer and main axle unit power shaft respectively, by high torsional rigid shaft coupling, the moment of torsion that dual-speed planet speed reducer exports are passed to main axle unit; The built-in hydraulic pressure knife striking cylinder of main axle unit, for cutter pine folder provides power; Control circuit of machine tool controls the gearshift in dual-speed planet speed reducer by input voltage signal, realizes the gears meshing of different gear.
Main transmission scheme before comparing, the program has following remarkable advantage:
1, mair motor and dual-speed planet speed reducer are placed in main spindle box top, perfect heat-dissipating, thermal deformation of spindle box significantly reduces, and improves machining accuracy and stability.
2, dual-speed planet speed reducer output shaft and main axle unit power shaft are directly connected by high torsional rigid shaft coupling, and use elastic coupling to compensate misalignment of axe.Shorten driving-chain, the radial unbalance loading of the main axle unit that before eliminating, main transmission scheme exists, considerably reduces the vibration & noise of main axle unit.
3, use high torsional rigid shaft coupling to transmit power, centre, without any need for bearings, reduces main spindle box requirement on machining accuracy and assembly difficulty, cost-saving.
4, main spindle box adopts four sides enclosed construction (except local has small size fabrication hole), ensure that main spindle box integral rigidity.
Accompanying drawing explanation
Fig. 1 is the sectional view of main spindle box confined state in the design;
Fig. 2 is the installation site schematic diagram of spindle box part in Longmen machine tool;
Fig. 3 is that A in Fig. 2 is to upward view;
Fig. 4 is the top view of Fig. 2;
Fig. 5 is the electrical schematic diagram of this main transmission structure.
Detailed description of the invention
The direct connection structure of the utility model gantry machining center main transmission as shown in drawings, it is characterized in that fold vertical with dual-speed planet speed reducer 2 of mair motor 1 in Fig. 1 falls within main spindle box top, connected by group studs of 4 in Fig. 28 (12.9 grades of intensity, comprise nut and plain washer) and spring washer 9; The input of mair motor 1 output shaft and dual-speed planet speed reducer 2 transmits power by Flat dey joint.Terminal pad 3 is installed between dual-speed planet speed reducer 2 and main spindle box 7, and uses high-strength bolt 10 (12.9 grades), spring washer 9 and plain washer by three being combined together; O type circle 4 is used to seal between terminal pad 3 lower surface and main spindle box 7 upper surface.High torsional rigid shaft coupling 5 in Fig. 1, the flexible shaft coupling in two ends, connect the output of dual-speed planet speed reducer 2 and the input of main axle unit 6 respectively, by high torsional rigid shaft coupling 5, the moment of torsion that dual-speed planet speed reducer 2 exports is passed to main axle unit 6, elastic coupling can compensate the two misalignment of axe.
In Fig. 1,3, main axle unit 6 is arranged in the machining hole of main spindle box 7, together with being put together on main spindle box 7 by main axle unit 6 by the high-strength bolt of 8 in Fig. 3 10 (12.9 grades).
Fig. 2,4 is scheme of installations that this main spindle box is applied in numerical control gantry machining center, and wherein nut seat 13 puts together on the back side of main spindle box 7; Main spindle box 7 embeds in saddle 12, slides up and down in saddle 12, coordinates ball-screw 14, servomotor 15 and balancing cylinder 11 to realize Z axis servo-drive.
Main axle unit 6 inside is integrated with hydraulic pressure knife striking cylinder, and in connecting machine tool, corresponding fluid pressure line provides power for cutter pine folder, can complete the action such as loose cutter, folder cutter.The annex related in this main transmission structure and pipeline also comprise the cooling line of dual-speed planet speed reducer 2 and main axle unit 6, the alignment of shafts is blown and hermetic seal pipeline, main axle unit 6 pine folder cutter fluid pressure line.
High torsional rigid shaft coupling 5 is outsourcing part, and bearing nominal torque/peak torque is 1100Nm/1650Nm, and design safety factor (DSF) is 2; Dynamic balancing is according to ISO 1940 standard, and dynamic balance grade 2.5, maximum speed 6000r/min, two ends elastic coupling is installed rear coaxiality error and is not more than 6.8mm.
The electric part of main transmission structure in control circuit of machine tool, controls the gearshift in dual-speed planet speed reducer 2 by voltage signal, realizes the gears meshing of different gear and the liquid cooling gas cooperation needed for main axle unit operation.In Fig. 5 PLC output contact Q2.1 ~ Q2.6 and 24V supply voltage ground wire between respectively SRE KA18-KA23, by Control contactor and magnetic valve, realize vulnerabilities scan forceful electric power, wherein Q2.1 control signal in contact controls dual-speed planet speed reducer 2 gear shift to low-grade via intermediate circuit, contact Q2.2 effect is contrary with contact Q2.1, controls dual-speed planet speed reducer gear shift to high-grade; Contact Q2.3 controls the cooling fluid supply of oil cooling machine to dual-speed planet speed reducer 2 and main axle unit 6; Contact Q2.4 controls pine folder cutter hydraulic cylinder, realizes the pine folder cutter action of main axle unit 6; Contact Q2.5 and Q2.6 protects for main axle unit 6 provides to blow; wherein contact Q2.5 controls the air blowing of center cone hole when tool changing; prevent foreign matter from entering in main axle unit 6; contact Q2.6 controls main axle unit hermetic seal; hermetic seal is provided when main axle unit 6 works; prevent foreign material from entering the inside of main axle unit 6, damaging internal precision drive parts.
Claims (1)
1. the direct connection structure of gantry machining center main transmission, relates to reductor, mair motor and main spindle box, it is characterized in that falling within main spindle box top by vertically folded to mair motor, dual-speed planet speed reducer; Main motor output shaft coaxially connects with dual-speed planet speed reducer, connects closing by studs; Between dual-speed planet speed reducer and main spindle box end face, terminal pad is installed, uses bolt to be connected to together by three; Main axle unit is arranged in main spindle box base apertures, and uses bolt by main axle unit together with machined surface puts together on bottom main spindle box; High torsional rigid shaft coupling two ends use elastic coupling to connect with the output shaft of dual-speed planet speed reducer and main axle unit power shaft respectively, by high torsional rigid shaft coupling, the moment of torsion that dual-speed planet speed reducer exports are passed to main axle unit; The built-in hydraulic pressure knife striking cylinder of main axle unit, for cutter pine folder provides power; Control circuit of machine tool controls the gearshift in dual-speed planet speed reducer by input voltage signal, realizes the gears meshing of different gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420526793.6U CN204123178U (en) | 2014-09-11 | 2014-09-11 | The direct connection structure of gantry machining center main transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420526793.6U CN204123178U (en) | 2014-09-11 | 2014-09-11 | The direct connection structure of gantry machining center main transmission |
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| Publication Number | Publication Date |
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| CN204123178U true CN204123178U (en) | 2015-01-28 |
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| CN201420526793.6U Active CN204123178U (en) | 2014-09-11 | 2014-09-11 | The direct connection structure of gantry machining center main transmission |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736784A (en) * | 2017-01-11 | 2017-05-31 | 宁波马可机电有限公司 | A kind of gantry machining center separate type gear direct-connected main shaft header structure |
| CN107538018A (en) * | 2017-09-06 | 2018-01-05 | 佛山市盈向精密机械科技有限公司 | Built-in direct-connected main shaft case and its assemble method |
| CN112518397A (en) * | 2020-12-21 | 2021-03-19 | 北京北方车辆集团有限公司 | Main transmission system of numerical control boring machine |
-
2014
- 2014-09-11 CN CN201420526793.6U patent/CN204123178U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736784A (en) * | 2017-01-11 | 2017-05-31 | 宁波马可机电有限公司 | A kind of gantry machining center separate type gear direct-connected main shaft header structure |
| CN107538018A (en) * | 2017-09-06 | 2018-01-05 | 佛山市盈向精密机械科技有限公司 | Built-in direct-connected main shaft case and its assemble method |
| CN107538018B (en) * | 2017-09-06 | 2023-12-01 | 佛山市台成数控机床有限公司 | Concealed direct-connection spindle box and assembling method thereof |
| CN112518397A (en) * | 2020-12-21 | 2021-03-19 | 北京北方车辆集团有限公司 | Main transmission system of numerical control boring machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210929 Address after: No.17a1, Kaifa Road, Shenyang Economic and Technological Development Zone, Shenyang City, Liaoning Province Patentee after: SHENYANG MACHINE TOOL (GROUP) CO.,LTD. Address before: 110141, No. 17, No. 1, development road, Shenyang economic and Technological Development Zone, Shenyang, Liaoning Patentee before: Zhongjie Machine Tool Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.17a1, Kaifa Road, Shenyang Economic and Technological Development Zone, Shenyang City, Liaoning Province Patentee after: General Technology Group Shenyang Machine Tool Co.,Ltd. Address before: No.17a1, Kaifa Road, Shenyang Economic and Technological Development Zone, Shenyang City, Liaoning Province Patentee before: SHENYANG MACHINE TOOL (GROUP) CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231009 Address after: No.17-A 1-4, Kaifa Road, Shenyang Economic and Technological Development Zone, Shenyang, Liaoning Province, 110000 Patentee after: Shenyang Machine Tool Zhongjie Friendship Factory Co.,Ltd. Address before: No.17a1, Kaifa Road, Shenyang Economic and Technological Development Zone, Shenyang City, Liaoning Province Patentee before: General Technology Group Shenyang Machine Tool Co.,Ltd. |