CN102974847A - Spindle unit of straight-cut lathe - Google Patents
Spindle unit of straight-cut lathe Download PDFInfo
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- CN102974847A CN102974847A CN2012105660935A CN201210566093A CN102974847A CN 102974847 A CN102974847 A CN 102974847A CN 2012105660935 A CN2012105660935 A CN 2012105660935A CN 201210566093 A CN201210566093 A CN 201210566093A CN 102974847 A CN102974847 A CN 102974847A
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Abstract
The invention discloses a spindle unit of a straight-cut lathe. The spindle unit is characterized by adopting the following structures, wherein a structure I is that a spindle bearing is of a split structure of a front bearing and a rear bearing, and the front bearing and the rear bearing, which are in a fixed form and a floating form respectively, are mounted at the front end and the rear end of a sleeve respectively; a structure II is that a bar clamping mechanism is placed in the middle between the front and the rear bearings to reduce the length of the spindle, the spindle is connected with a clamping mechanism consisting of a jaw, a pin shaft, a sliding seat and a clamping bearing through a sliding key to implement sliding, and the upper part of the wall of the sleeve is opened to expose the clamping mechanism; and a structure III is that a front end sealing ring and a rear end sealing ring for the sealing of the spindle bearing are of the same structure that two pairs of adjacent edges are in opposite convex-concave fit and a zigzag ring groove structure is formed in a bearing cover hole, a cylinder is mounted at one corner of a spindle box, a cylinder shaft and a pin rod pass through a shifting fork, and the pushing shaft of the shifting fork end falls into a bearing block groove to drive the sliding seat to move axially. According to the design, the sealing of the bearing adopts a front-end labyrinth structure and a zigzag ring groove is formed in the bearing cover hole, so that good waterproof and dustproof effects can be achieved.
Description
Technical field
What the present invention relates to process class walks the manufacturing of core type Digit Control Machine Tool, possesses specifically that bar is controlled or the automatic longitudinal cutting machine tool main axle unit of bar guider.
Background technology
Change along with modern production, with regard to the automatic longitudinal cutting machine tool of present mechanical main shaft, because its demand to rotating speed is generally higher, strict to situations such as the precision of machine tool chief axis part and dynamic balancing, and the main shaft portion clamping device that need be furnished with travelling gear and be used for clamping, advance bar to use, the clamping device of general prior art is positioned at the main shaft end, rack sleeve is the entire body structure, thereby the length of main shaft integral body is increased, and affects precision, and increased the structure space of complete machine, cause waste.
Summary of the invention
The main axle unit that the purpose of this invention is to provide a kind of longitudinal cutting machine tool with clamping device and main shaft integral unit, strengthens overall precision and the uniformity of main shaft portion, has shortened the length of main shaft, and has improved the main shaft seal performance.
The main axle unit of longitudinal cutting machine tool of the present invention, comprise main shaft, bearing, sleeve, push rod, clamping device, it is characterized in that following structure: structure one main shaft bearing adopts fore bearing and rear bearing Split type structure, fore bearing is that fixed form, rear bearing are relocatable form, be installed in respectively the sleeve rear and front end, the perforate of sleeve wall top exposes clamping device; The middle part that structure two places forward and backward bearing to arrange the bar clamping device reduces the length of main shaft, main shaft connects the clamping device that is comprised of claw, bearing pin, slide and clamping bearing by slide key to be realized sliding, and while clamping device integral body also can be carried out the dynamics that engages that claw and push rod are adjusted in controlled fine setting by placing slide key on the main shaft; Structure three sealing: the front and back ends sealing ring that the main shaft bearing sealing is adopted is that two pairs of neighboring edges are opened the zigzag groove structure in the same structure of convex-concave wedging and the bearing cap hole in opposite directions, can be good at playing waterproof and dust-proof effect; Main spindle box one side is installed cylinder, and cylinder axis, pin rod pass shift fork, and the push shaft of shift fork end falls in the bearing block groove, drives slide and moves axially.
The main axle unit characteristics that the design researches and develops for the rip cutting automatic machine tool: structure one adopts angular contact ball bearing, certain axial force can either be born and the demand of High Rotation Speed can be satisfied again, the unit form of entire body structure different from the past, like this layout install and adjust of being more convenient for.The middle part of two bearings to be reducing the length of main shaft before and after structure two was arranged in the bar clamping device, and the diameter of this rear bearing can be selected less size.The front and back ends labyrinth type is adopted in the sealing of structure three main shaft bearings, and opens the zigzag annular groove in the bearing cap hole and can be good at playing waterproof and dust-proof effect.The design's main axle unit compact conformation, good rigidly, being furnished with of floating type rear bearing is beneficial to the impact that overcomes the bearing thermal deformation and bring, and main axis length is shortened in the clamping device reach, and replacing and the maintenance to consumable accessorys such as claws is convenient in the upper cartridge perforate.
Description of drawings
Fig. 1 is the whole front view of the main axle unit of the design's lathe;
Fig. 2 is the main axle unit clamping device top view of the design's lathe;
Fig. 3 is the main axle unit hermetic unit detailed view of B section among Fig. 1;
Fig. 4 is the main axle unit middle sleeve of the design's lathe and the front view of clamping device;
Fig. 5 is the sleeve schematic diagram of the main axle unit of the design's lathe;
Fig. 6 is the clamping device front view of the design's lathe;
Fig. 7 is main spindle box and cylinder front view;
Fig. 8 is the top view of Fig. 7;
Fig. 9 is shift fork 28 and three axle schematic diagrames passing;
Figure 10 is the main shaft clamping pneumatic conceptual scheme of the design's lathe.
The specific embodiment
The main axle unit of longitudinal cutting machine tool of the present invention, comprise main shaft, sleeve, push rod, clamping device, it is characterized in that following structure: structure one: see Fig. 1, main spindle front bearing 5, rear bearing 6 and clamping bearing 13 all adopt angular contact ball bearing, bearing group adopts back-to-back topology, axle head pretension.Main spindle front bearing 5 is that fixed form, rear bearing 6 are relocatable form, is installed in respectively sleeve 2 rear and front ends, and the Split type structure of arranging like this is convenient to install and adjust; Push rod 4, push rod 4 rear end mounting spring 20, collet 11 are installed, the sleeve 2 anterior belt wheels 10 of installing in the chamber of main shaft 1 front end.
See Fig. 1 ~ 6, structure two bar clamping devices are arranged on forward and backward bearing 5 in the sleeve 2,6 middle part reduces the length of main shaft, and can make the diameter of rear bearing 6 select less size.Two strip slide keys 21 are symmetricly set on main shaft 1 both sides in the clamping device, and claw 14 is installed on the bearing pin 17 of master jaw 15, connect master jaw 15, slide 16 and key cover 23 by slide key 21; Slide 16 is fixed with slide key 21 left ends; Bearing 13 and bearing block 18 thereof are installed in slide 16 peripheries, and there are key cover 23 and locking nut 19 in bearing block 18 rear ends; Can find out that from Fig. 4,5 sleeve 2 wall tops are open, expose clamping device, Open architecture is convenient to replacing and the maintenance to claw 14 consumable accessorys such as grade.
Shifting fork structure is seen Fig. 9, and two narrow ends of cranking arm link to each other and be all porose, passes cylinder axis 31, its two wide termination and fixes two push shafts 30, pin rod 29 and penetrate the middle part and being installed in main spindle box 26 sidewalls of cranking arm.At clamping zero point, shifting fork structure and main shaft and clamping device radially are arranged vertically, and this moment, cylinder 27 was in releasing orientation.
See Figure 10, setting pressure switch S control source of the gas in the gas circuit that cylinder 27 connects, a pair of propelling is installed, the solenoid directional control valve Y1, the Y2 that return connect respectively two gas circuit pipe P1, P2, advance gas circuit pipe P1 upward to install and lock flow speed control valve F1, return upper installation of gas circuit pipe P2 and unclamp flow speed control valve F2, carry out the Machine-Tool Control instruction, the control cylinder advance and retreat.The clamping device operation connects source of the gas by machine tool system control cylinder 27, cylinder 27 pressure switch s open, simultaneity factor control electromagnetic propulsion reversal valve Y1 connects, gas is entered by tracheae P1 and advances locking flow speed control valve F1, cylinder 27 stretches out locking, promote shift fork 28, the push shaft 30 of shift fork 28 ends promotes slide 16 and moves to Fig. 8 right side and depress claw 14, and claw 14 promotes push rods 4 by bearing pin 17 effects, and the mobile pushing sleeve 3 that promotes comes fastening spring chuck 11 namely to clamp bar to Fig. 8 left side.Otherwise when cylinder 27 need to be return, machine tool system control electromagnetism was return reversal valve Y2 and is connected, and gas is entered by tracheae P2 and unclamps flow speed control valve F2, cylinder 27 is retracted and is spurred shift fork 28, when shift fork 28 promotion slides 16 were mobile to the diagram left side, claw 14 was lifted by counter the pushing away of spring 20 effects, unclamps workpiece.
Structure three labyrinth type bearing seal structures: from Fig. 1,3, one of hermetically-sealed construction: a pair of fore bearing sealing ring 7,8 and rear bearing sealing ring 22, the 9th separately, neighboring edge is the same structure of convex-concave wedging in opposite directions.A pair of fore bearing sealing ring 7,8 is set, at rear bearing 6 rear portions a pair of rear bearing sealing ring 22,9 is set at fore bearing 5 front ends; Two of hermetically-sealed construction: rear bearing 6 fronts also arrange rear bearing sealing shroud 25.Three of hermetically-sealed construction: in the bearing cap hole of fore bearing 5 peripheries, process zigzag annular groove 12, and have sealing shroud 24 to cooperate, implement sealing at fore bearing 5 rear portions, can be good at waterproof and dust-proof effect.
Assembly sequency: main shaft 1 is inserted sleeve 2 left hole from Fig. 1 left side, two slide keys 21 are installed in the hole in main shaft 1 both sides from the sleeve 2, again master jaw 15 is inserted in main shaft 1, and fix with the end of slide key 21, simultaneously two bearing pins 17 and two claws 14 are installed on the master jaw 15, then with mounted slipper slide 16, clamping bearing 13 and clamp axis bearing 18 along the slide key 21 directions main shaft of packing into, at slide key 21 rear end fitting keies covers 23, locking nut 19; The main shaft 1 that installs clamping device is continued to push to Fig. 1 right side, be installed into right side in sleeve 2 holes; The left side is installed sealing shroud 24, bearing 5, fore bearing sealing ring 7,8 and belt wheel 10 etc. successively in sleeve 2 holes, from main shaft 1 front end push rod 4, pushing sleeve 3 are installed successively again after installing after, in the pushing sleeve 3 of again spring 20, collet 11 being packed into; Install successively from the main shaft rear portion at last sealing shroud 23, locking nut 19, rear bearing sealing shroud with 25, rear bearing 6, rear bearing sealing ring 22,9, main axle unit installs.
Sleeve 2 top perforates are convenient to change and keep in repair.When claw 14 can't reach requirement with push rod 4 owing to long term wear, the user can unload first lower bearing pin 17, then locking nut 19 was moved to the diagram right side, made slide 16, clamping bearing 13 fixed structures partly move to right to increase and changed claw 14 spaces.
In sum, the present invention is applied to the numerical control longitudinal cutting machine tool main shaft portion, connection and reasonable arrangement, and locking is convenient, and is safe and reliable, and processing and installation are simple, easy to maintenance, make the easier assurance of geometric accuracy of lathe, have greatly improved production efficiency.
Claims (4)
1. the main axle unit of a longitudinal cutting machine tool, comprise main shaft, sleeve, push rod, clamping device, bearing is characterized in that following structure: structure one main shaft bearing adopts fore bearing and rear bearing Split type structure, fore bearing is that fixed form, rear bearing (6) are relocatable form, is installed in respectively sleeve (2) rear and front end; The middle part that structure two places sleeve wall (2) fore bearing (5), rear bearing (6) to arrange the bar clamping device reduces the length of main shaft (1), and sleeve wall (2) top is open, exposes clamping device; Main shaft (1) connects claw (14), bearing pin (17), slide (16) and slide (16) by slide key (21) and key cover (23) clamping bearing (13) is realized sliding, and clamping device integral body also can be carried out the dynamics that engages that claw (14) and push rod (4) are adjusted in controlled fine setting by placing slide key (21) on the main shaft (1) simultaneously; Structure three sealing, the front and back ends sealing ring that the main shaft bearing sealing is adopted are that two pairs of neighboring edges are opened the zigzag annular groove in the same structure of convex-concave wedging and the bearing cap hole in opposite directions, can be good at playing the compartment dust-proof effect; Main spindle box one side is installed cylinder, and cylinder axis, pin rod pass shift fork, and shift fork end push shaft falls in the bearing block groove, drives slide and moves axially.
2. For Spindle Unit of Machine Tool structure according to claim 1, it is characterized in that two strip slide keys (21) are symmetricly set on main shaft (1) both sides in structure two clamping devices, bearing pin (17) radially between, the upper claw (14) of installing of the bearing pin (17) of master jaw (15) connects master jaw (15), slide (16) and key cover (23) by slide key (21); Slide (16) is fixed with slide key (21) left end; Bearing (13) and bearing block (18) thereof are installed in slide (16) periphery, and there are key cover (23) and locking nut (19) in bearing block (18) rear end.
3. For Spindle Unit of Machine Tool structure according to claim 1, it is characterized in that one of structure three labyrinth type bearing seal structures: a pair of fore bearing sealing ring (7,8) is set, in rear bearing (6) back a pair of rear bearing sealing ring (22,9) is set at fore bearing (5) front end, a pair of sealing ring is the in opposite directions same structure of convex-concave wedging of neighboring edge separately; Two of hermetically-sealed construction: rear bearing sealing shroud (25) also is set in rear bearing (6) front; Three of hermetically-sealed construction: in the bearing cap hole of fore bearing (5) periphery, process zigzag annular groove (12), and have sealing shroud (24) to cooperate, implement sealing at fore bearing (5) rear portion.
4. For Spindle Unit of Machine Tool structure according to claim 1, it is characterized in that cranking arm two of shifting fork structures narrow end links to each other and all porose, pass cylinder axis (31), its two wide termination and fix two push shafts (30), pin rod (29) and penetrate the middle part and being installed in main spindle box (26) sidewall of cranking arm; At clamping zero point, shifting fork structure and main shaft and clamping device radially are arranged vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105660935A CN102974847A (en) | 2012-12-24 | 2012-12-24 | Spindle unit of straight-cut lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105660935A CN102974847A (en) | 2012-12-24 | 2012-12-24 | Spindle unit of straight-cut lathe |
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| CN102974847A true CN102974847A (en) | 2013-03-20 |
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| CN2012105660935A Pending CN102974847A (en) | 2012-12-24 | 2012-12-24 | Spindle unit of straight-cut lathe |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057107A (en) * | 2014-06-19 | 2014-09-24 | 南京建克机械有限公司 | Movable synchronization electric guide sleeve |
| CN106493393A (en) * | 2016-12-26 | 2017-03-15 | 东莞市台科精密机械有限公司 | A kind of spindle motor unit of numerical control rip cutting turnning and milling complex centre application |
| CN107470961A (en) * | 2017-07-31 | 2017-12-15 | 张志通 | A kind of high-precision numerical control machine |
| CN108465527A (en) * | 2018-04-11 | 2018-08-31 | 中山斯瑞德环保科技股份有限公司 | A kind of unilateral localization method of rubbish double-shaft crusher main shaft |
| CN113857505A (en) * | 2021-09-27 | 2021-12-31 | 山东农业工程学院 | High rotational speed main shaft unit structure of built-in big moment of torsion of unclamping cylinder |
| TWI759182B (en) * | 2021-04-22 | 2022-03-21 | 御成工業有限公司 | Spindle structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003334705A (en) * | 2002-05-15 | 2003-11-25 | Nsk Ltd | Main spindle device |
| JP2006062042A (en) * | 2004-08-27 | 2006-03-09 | Nippei Toyama Corp | Spindle device |
| CN2838816Y (en) * | 2005-09-13 | 2006-11-22 | 建荣精密机械(上海)有限公司 | Main shaft for working central machine |
| CN201239807Y (en) * | 2008-08-19 | 2009-05-20 | 天津市精诚机床制造有限公司 | Labyrinth type gas-tight sealing apparatus for machine tool main spindle |
| DE102010045285A1 (en) * | 2010-09-14 | 2012-03-15 | Josef Reinauer | Machine tool spindle for driving tool system, has integrated pneumatic release unit clamping and unclamping two parts of tool system, and comprising pressure rod, pressure chamber, force transfer cylinder and pressure chamber module |
| CN203209710U (en) * | 2012-12-24 | 2013-09-25 | 沈阳机床股份有限公司 | Main shaft unit of longitudinally cutting machine tool |
-
2012
- 2012-12-24 CN CN2012105660935A patent/CN102974847A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003334705A (en) * | 2002-05-15 | 2003-11-25 | Nsk Ltd | Main spindle device |
| JP2006062042A (en) * | 2004-08-27 | 2006-03-09 | Nippei Toyama Corp | Spindle device |
| CN2838816Y (en) * | 2005-09-13 | 2006-11-22 | 建荣精密机械(上海)有限公司 | Main shaft for working central machine |
| CN201239807Y (en) * | 2008-08-19 | 2009-05-20 | 天津市精诚机床制造有限公司 | Labyrinth type gas-tight sealing apparatus for machine tool main spindle |
| DE102010045285A1 (en) * | 2010-09-14 | 2012-03-15 | Josef Reinauer | Machine tool spindle for driving tool system, has integrated pneumatic release unit clamping and unclamping two parts of tool system, and comprising pressure rod, pressure chamber, force transfer cylinder and pressure chamber module |
| CN203209710U (en) * | 2012-12-24 | 2013-09-25 | 沈阳机床股份有限公司 | Main shaft unit of longitudinally cutting machine tool |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057107A (en) * | 2014-06-19 | 2014-09-24 | 南京建克机械有限公司 | Movable synchronization electric guide sleeve |
| CN106493393A (en) * | 2016-12-26 | 2017-03-15 | 东莞市台科精密机械有限公司 | A kind of spindle motor unit of numerical control rip cutting turnning and milling complex centre application |
| CN107470961A (en) * | 2017-07-31 | 2017-12-15 | 张志通 | A kind of high-precision numerical control machine |
| CN108465527A (en) * | 2018-04-11 | 2018-08-31 | 中山斯瑞德环保科技股份有限公司 | A kind of unilateral localization method of rubbish double-shaft crusher main shaft |
| TWI759182B (en) * | 2021-04-22 | 2022-03-21 | 御成工業有限公司 | Spindle structure |
| CN113857505A (en) * | 2021-09-27 | 2021-12-31 | 山东农业工程学院 | High rotational speed main shaft unit structure of built-in big moment of torsion of unclamping cylinder |
| CN113857505B (en) * | 2021-09-27 | 2022-07-05 | 山东农业工程学院 | High rotational speed main shaft unit structure of built-in big moment of torsion of unclamping cylinder |
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Effective date of abandoning: 20130320 |
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