CN102513893B - Elastic multi-model grinding end surface positioning device - Google Patents
Elastic multi-model grinding end surface positioning device Download PDFInfo
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- CN102513893B CN102513893B CN201110425490.6A CN201110425490A CN102513893B CN 102513893 B CN102513893 B CN 102513893B CN 201110425490 A CN201110425490 A CN 201110425490A CN 102513893 B CN102513893 B CN 102513893B
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Abstract
The invention discloses an elastic multi-model grinding end surface positioning device. A flange of a grinding machine is coaxially rotationally connected to the outside of a spindle of the grinding machine, a first shifting lever is fixedly disposed on the flange, a spindle seat is fixedly connected into an inner hole of the spindle of the grinding machine, an adjusting plug screw is connected into an inner cavity of the rear end of the spindle seat in a threaded manner, a sliding center is coaxially connected into an inner cavity of the front end of the spindle seat, and a compression spring is arranged between the sliding center and an end surface of the adjusting plug screw. A connecting seat is in sleeve joint on the outer portion of the front end of the spindle seat, an axial positioning structure and a radial positioning structure are disposed between the connecting seat and the spindle seat, an end cover is detachably connected to the end surface of the front end of the connecting seat, a second shifting lever parallel to the first shifting lever is arranged on the end cover, a straight hole is disposed in the center of the end cover, and the front end of the sliding center can extend out of the straight hole. Central holes of a shaft are used as radial references, an end surface of a gear is used as a length processing reference, and the purpose of directly guaranteeing the axial length of the gear is achieved.
Description
Technical field:
The present invention relates to a kind of elastic multi-model grinding end surface positioning device.
Background technology:
Oil pump tooth axis products is very high to gear fitting tight effect requirements, and as shown in Figure 1, driving gear shaft A, driven gear shaft B are the exigent parts of a pair of tooth portion's axial length dimension, and the axial length error of the C of tooth portion is generally at 0.01mm.At present the fine grinding of two end faces of gear is processed on cylindrical grinder, and by roll flute both sides end face, all take centre bore as benchmark, axial length is criticized difference and cannot be stablized and guarantee in 0.01mm.
Referring to Fig. 2, existing two sides by the feature of mill processing mode are:
Spindle top 15 can not the flexible stationary center of axial elasticity for not rotating, be arranged in grinding machine spindle 2 endoporus, grinding machine flange 3 rotates around grinding machine spindle and spindle top, and drive workpiece to be machined rotation by the driving lever 17 on grinding machine flange, workpiece to be machined is provided with part chuck 19, and this part chuck 19 forms cross with driving lever 17 and contacts.Tailstock center 18 is that elastic telescopic is top, supports the other end centre bore of workpiece to be machined.First first end face of processing work gear, after grinding completes, take off workpiece, with the axial length of outside micrometer prototype gear, and calculate second end face of gear by mill surplus, by workpiece turn around to be clamped in two top between, determine the second feeding size according to the surplus calculating, grinding repeatedly, measurement, until size is qualified.The defect that existing processing mode exists is:
Because every converted products exists error by the front thickness of mill and first end face of gear to central hole location, the accumulation of these two errors causes by after an end face of mill, and gear axial length dimension still cannot guarantee unanimously.
Therefore, must by mill first end face after, need take off workpiece, measure once, determine second end face by mill processing capacity, duplicate measurements process, until gear axial length is qualified.Every product all at least needs to process guarantee axial length for twice through twice measurement.
Summary of the invention:
For overcoming the defect of prior art, the object of the present invention is to provide a kind of elastic multi-model grinding end surface positioning device, the centre bore that adopts axle is radial reference, an end face of gear is length machining benchmark, reaches the object of direct assurance axial length.
Technical solution problem of the present invention adopts following technical scheme:
Elastic multi-model grinding end surface positioning device, is characterized in that comprising:
The spindle drum of one tubular, the rear end of described spindle drum is fixed in grinding machine spindle endoporus, and front end extends outside grinding machine spindle;
Outside described grinding machine spindle, coaxial rotation is connected with grinding machine flange, is fixedly connected with first driving lever parallel with described spindle drum axis on described grinding machine flange;
The adjusting plug screw that has been threaded in the rear end inner chamber of described spindle drum, is coaxially connected with in front end inner chamber and slides toply, and the inner chamber matched in clearance of the top and described spindle drum of described slip is provided with stage clip between described adjusting plug screw and the top end face of described slip; Described spindle drum is provided with radial screw bore, and is provided with the first screw mating with described screwed hole, and the top outer wall of described slip is provided with kidney slot, and the position of described kidney slot is corresponding with the position of described screwed hole;
The front end sleeve of described spindle drum is connected to Connection Block, is provided with axial, radial positioning structure between described Connection Block and described spindle drum;
Second screw that has radially been threaded in the rear end of described Connection Block, described the second screw forms cross with described the first driving lever and contacts; The front end end face reassembling type of Connection Block is connected with end cap, and end cap is provided with second driving lever parallel with described the first driving lever, and is provided with the straight hole stretching out for the top front end of described slip at described end cap center.
Design feature of the present invention is also:
The rear end thread in inner cavity of described Connection Block is connected with adjusting nut, and the endoporus of described adjusting nut coordinates with described spindle drum circumferential play; From described adjusting nut between described end cap, between the inner chamber of described Connection Block and the outer wall of described spindle drum, there are three cavitys, in two cavitys adjacent with described adjusting nut, be provided with separately angular contact ball bearing, in the cavity adjacent with described end cap, be provided with the radial short cylindrical roller bearing being socketed on spindle drum, and be socketed with shaft block ring on the spindle drum outer wall between described radial short cylindrical roller bearing and described end cap.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention relates to the positioning and driving mechanism of axial length control in outer mill process equipment, the processing that improves tooth axis products axial length guarantees ability.Between the inner chamber of Connection Block and spindle drum periphery, be provided with successively three cavitys, contact with the step both ends of the surface of spindle drum by two angular contact ball bearings, adjusting nut is adjusted bearing axial clearance, the axial float of control connection seat, spindle drum front end sleeve is connected to radial short cylindrical roller bearing, its inner ring and spindle drum cylindrical secure fit, the radial clearance of outer ring and Connection Block fiting constraint Connection Block, realizes the rotation of Connection Block.When work, Connection Block contacts driven rotary by the second screw with the first driving lever on grinding machine flange, and the second driving lever rotatablely moving by being connected on end cap is passed to workpiece to be machined, realize the relative rotary motion of workpiece and emery wheel, end cap endoporus has cannelure, sealing ring is housed, prevents emery wheel ash access to plant inside.
2, the present invention is simple in structure, easy to make, economical and practical, is beneficial to popularization.
Accompanying drawing explanation:
Fig. 1 is the structural representation of gear oil pump.
Fig. 2 is the structural representation of existing gear face by mill positioner.
Fig. 3 is structural representation of the present invention.
Number in the figure: 1 spindle drum, 2 grinding machine spindles, 3 grinding machine flanges, 4 first driving levers, 5 regulate plug screw, and 6 slips are top, 7 stage clips, 8 first screws, 9 second screws, 10 end caps, 11 second driving levers, 12 adjusting nuts, 13 angular contact ball bearings, 14 radial short cylindrical roller bearings, 15 spindle tops, 16 shaft block rings, 17 driving levers, 18 tailstock centers, 19 part chucks, 20 Connection Blocks.
Below pass through the specific embodiment, and the invention will be further described by reference to the accompanying drawings.
The specific embodiment:
Embodiment: referring to Fig. 3, the elastic multi-model grinding end surface positioning device of the present embodiment, the processing that is applicable to improve product axle class axial length guarantees ability, this device possesses:
The spindle drum 1 of one tubular, its rear end is fixed in the endoporus of grinding machine spindle 2, and front end extends outside grinding machine spindle; Be connected with grinding machine flange 3 in the outer coaxial rotation of grinding machine spindle 2, on grinding machine flange 3, be fixedly connected with first driving lever 4, the first driving levers parallel with spindle drum 1 axis and be used for stirring Connection Block 20 and rotate.
In the inner chamber of the rear end of spindle drum 1, be threaded and regulated plug screw 5, in front end inner chamber, be coaxially connected with and slide top 6, slide top 6 with the inner chamber matched in clearance of spindle drum 1, in the spindle drum endoporus between the end face that regulates plug screw 5 and slip top 6, be provided with stage clip 7; Spindle drum 1 is provided with radial screw bore, and is provided with the first screw 8 mating with this screwed hole, and top 6 the outer wall of sliding is provided with kidney slot, and the position of kidney slot is corresponding with the position of screwed hole; Stage clip 7 is free to slide in axial certain distance for slip is top.The first screw 8 and kidney slot can be by the top axial location of sliding.
Be connected to Connection Block 20 at the front end sleeve of spindle drum 1, between Connection Block 20 and spindle drum 1, be provided with axial, radial positioning structure; Second screw 9, the second screws 9 that have radially been threaded in the rear end of Connection Block form cross with the first driving lever 4 and contact, and in the time that the first driving lever 4 rotates with grinding machine flange 3, drive Connection Block 20 to rotate.The front end end face of Connection Block 20 end cap 10 that has been removably connected, end cap 10 is provided with second driving lever 11 parallel with the first driving lever 4, the second driving lever drives processed axle product to synchronize and rotate with Connection Block, and do relative rotary motion with emery wheel, be provided with the straight hole stretching out for top 6 front ends that slide at end cap 10 centers.
Axial, radial positioning structure between Connection Block 20 and spindle drum 1 are specially: in the rear end of Connection Block 20, thread in inner cavity is connected with adjusting nut 12, and the endoporus of adjusting nut coordinates with spindle drum circumferential play; Self-adjusting nut 12 is between end cap 10, between the outer wall of the inner chamber of Connection Block 20 and spindle drum 1, there are three cavitys, in two cavitys adjacent with adjusting nut, be provided with separately angular contact ball bearing 13, in the cavity adjacent with end cap 10, be provided with the radial short cylindrical roller bearing 14 being socketed on spindle drum, and be socketed with shaft block ring 16 on the spindle drum outer wall between radial short cylindrical roller bearing 14 and end cap 10.Adjusting nut 12 is adjusted the end play of angular contact ball bearing 13, the axial float of control connection seat, and radial short cylindrical roller bearing 14 is controlled radial clearance, realizes the rotation of Connection Block 20.
When use, the two ends centre bore of processed gear shaft is aimed at respectively to tailstock center 18 and slided top 6, guarantee centre bore radial reference, then by regulating plug screw 5, stage clip 7 to make to slide in the endoporus of top 6 retraction spindle drums 1, now the end face of processed gear contacts location with the front end small end face of end cap 10, and by revolution and the moving range of the first screw 8 limit slippage top 6.The top 6 adjusting axial locations that make to slide contact with the centre bore that is added gear shaft, realizing Double Tops point with tailstock center 18 merging of cylindrical grinder contacts, the free degree to five directions of workpiece retrains, the tooth end surface that now end standard of processed gear shaft is gear shaft, rather than the centre bore of gear shaft, avoid, because the error that centre bore exists to tooth end surface causes Grinding Error, improving product working (machining) efficiency and qualification rate.
Claims (2)
1. elastic multi-model grinding end surface positioning device, is characterized in that comprising:
The spindle drum (1) of one tubular, the rear end of described spindle drum (1) is fixed in grinding machine spindle (2) endoporus, and front end extends outside grinding machine spindle;
Outside described grinding machine spindle (2), coaxial rotation is connected with grinding machine flange (3), is fixedly connected with first driving lever (4) parallel with described spindle drum (1) axis on described grinding machine flange (3);
Adjusting plug screw (5) has been threaded in the rear end inner chamber of described spindle drum (1), in front end inner chamber, be coaxially connected with slide top (6), the inner chamber matched in clearance of described slip top (6) and described spindle drum (1) is provided with stage clip (7) between described adjusting plug screw (5) and the end face of described slip top (6); Described spindle drum (1) is provided with radial screw bore, and be provided with the first screw (8) mating with described screwed hole, the outer wall of described slip top (6) is provided with kidney slot, and the position of described kidney slot is corresponding with the position of described screwed hole;
The front end sleeve of described spindle drum (1) is connected to Connection Block (20), is provided with axial, radial positioning structure between described Connection Block (20) and described spindle drum (1);
The second screw (9) that has radially been threaded in the rear end of described Connection Block, described the second screw (9) forms cross with described the first driving lever (4) and contacts; The front end end face reassembling type of Connection Block (20) is connected with end cap (10), end cap (10) is provided with second driving lever (11) parallel with described the first driving lever (4), and is provided with the straight hole stretching out for described slip top (6) front end at described end cap (10) center.
2. elastic multi-model grinding end surface positioning device according to claim 1, it is characterized in that, the rear end thread in inner cavity of described Connection Block (20) is connected with adjusting nut (12), and the endoporus of described adjusting nut coordinates with described spindle drum circumferential play; From described adjusting nut (12) between described end cap (10), between the outer wall of the inner chamber of described Connection Block (20) and described spindle drum (1), there are three cavitys, in two cavitys adjacent with described adjusting nut, be provided with separately angular contact ball bearing (13), in the cavity adjacent with described end cap (10), be provided with the radial short cylindrical roller bearing (14) being socketed on spindle drum, and be socketed with shaft block ring (16) on the spindle drum outer wall between described radial short cylindrical roller bearing (14) and described end cap (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110425490.6A CN102513893B (en) | 2011-12-19 | 2011-12-19 | Elastic multi-model grinding end surface positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110425490.6A CN102513893B (en) | 2011-12-19 | 2011-12-19 | Elastic multi-model grinding end surface positioning device |
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| Publication Number | Publication Date |
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| CN102513893A CN102513893A (en) | 2012-06-27 |
| CN102513893B true CN102513893B (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110425490.6A Active CN102513893B (en) | 2011-12-19 | 2011-12-19 | Elastic multi-model grinding end surface positioning device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105500196B (en) * | 2014-09-22 | 2018-03-27 | 石台县熠翔机械制造有限公司 | A kind of self-centering taper hole grinding jig of bearing element formula |
| CN111360684B (en) * | 2020-04-08 | 2022-04-22 | 中国神华煤制油化工有限公司 | Grinding tool |
| CN111922802A (en) * | 2020-07-22 | 2020-11-13 | 长沙湖航冶金设备有限公司 | Cylindrical grinding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3943804A (en) * | 1974-06-21 | 1976-03-16 | Omer H. Schook | Spring-loaded live center |
| JPS57211402A (en) * | 1981-06-23 | 1982-12-25 | Nippon Air Brake Co Ltd | Driving center for cutting work |
| CN2124785U (en) * | 1992-06-03 | 1992-12-16 | 周贵根 | End face self-poking centre without stopping |
| CN2707432Y (en) * | 2004-07-09 | 2005-07-06 | 珠海天禾精密机械有限公司 | Precise cylindrical grinding device |
| CN201239902Y (en) * | 2008-06-30 | 2009-05-20 | 河南活顶尖机械有限公司 | Changeable built-in live center |
| CN202411984U (en) * | 2011-12-19 | 2012-09-05 | 六安江淮永达机械制造有限公司 | Elastic grinding end surface positioning device |
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Denomination of invention: Elastic multi-model grinding end surface positioning device Effective date of registration: 20180119 Granted publication date: 20140709 Pledgee: Bank of Communications Ltd. Lu'an branch Pledgor: LU'AN JIANGHUAI YONGDA MACHINERY MANUFACTURING CO.,LTD. Registration number: 2018340000011 |
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Address after: 237161 no.1692, Gaocheng East Road, economic development zone, Lu'an City, Anhui Province Patentee after: Lu'an Yongda Machinery Co.,Ltd. Address before: 237010 Dongwu Road, north of Gaocheng East Road, Lu'an City, Anhui Province Patentee before: LU'AN JIANGHUAI YONGDA MACHINERY MANUFACTURING CO.,LTD. |