CN202753006U - Fixed body feeding mechanism of centerless grinding machine - Google Patents
Fixed body feeding mechanism of centerless grinding machine Download PDFInfo
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- CN202753006U CN202753006U CN 201220445925 CN201220445925U CN202753006U CN 202753006 U CN202753006 U CN 202753006U CN 201220445925 CN201220445925 CN 201220445925 CN 201220445925 U CN201220445925 U CN 201220445925U CN 202753006 U CN202753006 U CN 202753006U
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- fixed body
- seat
- upper feeding
- ball bearing
- worm shaft
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Abstract
The utility model relates to a fixed body feeding mechanism of a centerless grinding machine. An upper feeding worm shaft is supported and positioned through a first angular contact ball bearing and a second angular contact ball bearing, the first angular contact ball bearing and the second angular contact ball bearing are installed on shaft necks at two ends of the upper feeding worm shaft, a feeding hand wheel is fixedly installed at the front end of the upper feeding worm shaft, and the feeding hand wheel rotates to drive the upper feeding worm shaft to rotate. A lead screw base is fixed on a sliding plate of a guide wheel frame, one end of a ball screw is installed in the lead screw base, a nut base is assembled on the ball screw, an upper feeding bevel gear is fixedly installed on the nut base, the upper feeding bevel gear is in meshing transmission with spiral teeth of the upper feeding worm shaft, and the upper feeding worm shaft rotates to drive the upper feeding bevel gear and the nut base to rotate synchronously. A fixed body is supported and installed on the nut base through a bearing assembly, and the nut base moves axially on the ball screw when the nut base rotates so as to drive the fixed body to be in accurate straight line feeding motion. The fixed body feeding mechanism of the centerless grinding machine is simple and compact in structure, convenient to process and manufacture, capable of driving the fixed body to be fed accurately, high in transmission accuracy and long in service life.
Description
Technical field
The utility model relates to the grinding machine equipment technical field, specifically a kind of centerless grinder fixed body feed mechanism.
Background technology
Centerless grinder is not need to adopt the workpiece axle center and the class grinding machine that carries out the grinding work piece external diameter.In the prior art, the grinding work of centerless grinder is mainly cooperated by abrasive grinding wheel, guide wheel and three critical pieces of carriage to be finished.Its medium plain emery wheel is served as grinding work; The rotation of guide wheel control workpiece, and make the workpiece feeding; Carriage is holding workpieces when grinding.
In the prior art, the wheel frame that guide wheel be used for to be installed generally comprises slide plate and fixed body, and guide wheel is installed on the fixed body, fixed body be installed on the slide plate and can move forward into to, fixed body drives by the fixed body feed mechanism, moves in the slide plate upper feeding; Slide plate be installed on the lathe bed and can move forward into to, slide plate drives by main feed mechanism, moves in the lathe bed upper feeding.In actual production, guide wheel in use deviation can occur, affects grinding quality, need to repair guide wheel.The correcting compensation of guide wheel mainly is to adjust by the fixed body feed mechanism, fixed body feed mechanism commonly used is to adopt simple screw rod to regulate mostly now, mainly there is following shortcoming in it: (1), common screw accuracy of thread are low, and bearing capacity is low, and transmission accuracy is low; (2), screw flight work birthday noodle are low, easily wearing and tearing, precision stability is poor; (3), screw pitch is little, when the long distance adjustment of needs, operating efficiency is lower.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of centerless grinder fixed body feed mechanism is provided, and it is simple and compact for structure, and convenient processing and manufacture can drive the accurate feeding of fixed body, transmission accuracy height and long service life.
The technical scheme that provides according to the utility model: centerless grinder fixed body feed mechanism is characterized in that: comprise leading screw seat, ball-screw, nut seat, upper feeding helical gear, upper feeding worm shaft and feeding handwheel; The upper feeding worm shaft is by being installed in the first angular contact ball bearing and the second angular contact ball bearing supporting location on its two ends axle journal, and upper feeding worm shaft front end fixed installation feeding handwheel rotates by rotating feeding handwheel drive upper feeding worm shaft; The leading screw seat is fixed on the slide plate of wheel frame, ball-screw one end is installed in the leading screw seat and by round nut and is locked, be equipped with the nut seat that cooperates with its formation screw thread transmission on the ball-screw, the upper feeding helical gear is fixedly mounted on the nut seat, helical tooth engaged transmission on upper feeding helical gear and the upper feeding worm shaft drives the upper feeding helical gear when upper feeding worm shaft rotates and nut seat rotates synchronously; Described fixed body is installed on the nut seat by the bearing assembly supporting, moves axially at ball-screw when nut seat rotates, and does accurate straight-line feed motion thereby drive fixed body.
As further improvement of the utility model, described bearing assembly comprises the first thrust ball bearing with flat seat, radial location ball bearing and the second thrust ball bearing with flat seat; The first thrust ball bearing with flat seat is installed in nut seat one end, and a seat ring of the first thrust ball bearing with flat seat is bearing on the end step of nut seat, and another seat ring of the first thrust ball bearing with flat seat is bearing in the first end of fixed body; The radial location ball bearing is installed on the nut seat, and the outer ring of radial location ball bearing is bearing in the fixed body; The second thrust ball bearing with flat seat is installed in the nut seat other end, a seat ring of the second thrust ball bearing with flat seat is bearing on the middle bench of nut seat, another seat ring of the second thrust ball bearing with flat seat is bearing in the thrust metal, described thrust metal is fixedly mounted on the nut seat, and the second end of described fixed body is fixedly connected on the thrust metal.
As further improvement of the utility model, the second end of described fixed body is equipped with gland, on the described gland fastening nail is installed, and described fastening nail is used for adjusting the end play between gland and thrust metal.
As further improvement of the utility model, on the described upper feeding worm shaft handwheel dial is installed, described handwheel dial is fixedly mounted on upper feeding worm shaft front end, and the feeding handwheel is fixedly connected on the handwheel dial.
As further improvement of the utility model, the minimum calibration on the described handwheel dial is every little lattice 0.001mm.
As further improvement of the utility model, cover has leading screw protective cover, leading screw protective cover to be fixed on the described gland on the described ball-screw.
The utility model compared with prior art, advantage is:The utility model is simple and compact for structure, and convenient processing and manufacture can drive the accurate feeding of fixed body; The utlity model has two sets of transmission mechanism, one cover is high-precision worm shaft helical gear engaged transmission, another set of is ball guide screw nat transmission with pretension, and this two sets of transmission mechanism has all carried out the elimination interstitial treatment, so whole centerless grinder fixed body feed mechanism precision is very high, long service life.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is that A-A among Fig. 1 is to cutaway view.
The specific embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure: the centerless grinder fixed body feed mechanism among the embodiment is mainly by slide plate 1, leading screw seat 2, ball-screw 3, the first thrust ball bearing with flat seat 4, nut seat 5, fixed body 6, radial location ball bearing 7, upper feeding helical gear 8, upper feeding worm shaft 9, the second thrust ball bearing with flat seat 10, thrust metal 11, gland 12, fastening nail 13, leading screw protective cover 14, the first angular contact ball bearing 15, the second angular contact ball bearing 16, the parts such as handwheel dial 17 and feeding handwheel 18 form.
As shown in Figure 1 and Figure 2, described upper feeding worm shaft 9 is by being installed in the first angular contact ball bearing 15 and the second angular contact ball bearing 16 supporting location on its two ends axle journal, on the described upper feeding worm shaft 9 handwheel dial 17 is installed, described handwheel dial 17 is fixedly mounted on upper feeding worm shaft 9 front ends by trip bolt, feeding handwheel 18 is fixedly connected on the handwheel dial 17 by screw, drive 9 rotations of upper feeding worm shaft by rotating feeding handwheel 18, fly dial 17 can be read the rotational angle of upper feeding worm shaft 9.In the utility model, the minimum calibration on the described handwheel dial 17 is every little lattice 0.001mm, and degree of regulation is very high.
As shown in Figure 1 and Figure 2, leading screw seat 2 is fixed on the slide plate 1, ball-screw 3 one ends are installed in the leading screw seat 2 and by round nut and are locked, be equipped with the nut seat 5 that cooperates with its formation screw thread transmission on the ball-screw 3, upper feeding helical gear 8 is fixedly mounted on the nut seat 5 by screw, helical tooth engaged transmission on upper feeding helical gear 8 and the upper feeding worm shaft 9, upper feeding worm shaft 9 drives upper feeding helical gear 8 when rotating and nut seat 5 rotates synchronously; Described fixed body 6 is installed on the nut seat 5 by the bearing assembly supporting, moves axially at ball-screw 3 when nut seat 5 rotates, and does accurate straight-line feed motion thereby drive fixed body 6.
As shown in Figure 1, among the utility model embodiment, described bearing assembly mainly is comprised of the first thrust ball bearing with flat seat 4, radial location ball bearing 7 and the second thrust ball bearing with flat seat 10; The first thrust ball bearing with flat seat 4 is installed in nut seat 5 one ends, and a seat ring of the first thrust ball bearing with flat seat 4 is bearing on the end step of nut seat 5, and another seat ring of the first thrust ball bearing with flat seat 4 is bearing in the first end of fixed body 6; Radial location ball bearing 7 is installed on the nut seat 5, and the outer ring of radial location ball bearing 7 is bearing in the fixed body 6; The second thrust ball bearing with flat seat 10 is installed in nut seat 5 other ends, a seat ring of the second thrust ball bearing with flat seat 10 is bearing on the middle bench of nut seat 5, another seat ring of the second thrust ball bearing with flat seat 10 is bearing in the thrust metal 11, described thrust metal 11 is fixedly mounted on the nut seat 5, the second end of described fixed body 6 is equipped with gland 12 by screw, on the described gland 12 fastening nail 13 is installed, described fastening nail 13 is for the end play of adjusting 11 of gland 12 and thrust metals.
As shown in Figure 1, cover has leading screw protective cover 14, leading screw protective cover 14 to be fixed on the described gland 12 on the described ball-screw 3.
During concrete the application, hand rotation feeding handwheel 18, feeding handwheel 18 drives upper feeding worm shaft 9 and rotates, upper feeding worm shaft 9 drives upper feeding helical gear 8 when rotating and nut seat 5 rotates synchronously, this moment, ball-screw 3 was motionless, and only nut seat 5 rotates, and moved axially at ball-screw 3 when nut seat 5 rotates, thereby drive fixed body 6 and do accurate straight-line feed motion, the guide wheel that is installed on the fixed body also just can accurately be repaired.
Centerless grinder fixed body feed mechanism of the present utility model has two sets of transmission mechanism, one cover is high-precision worm shaft helical gear engaged transmission, another set of is ball guide screw nat transmission with pretension, and this two sets of transmission mechanism has all carried out the elimination interstitial treatment, so whole centerless grinder fixed body feed mechanism precision is very high.
Claims (6)
1. centerless grinder fixed body feed mechanism is characterized in that: comprise leading screw seat (2), ball-screw (3), nut seat (5), upper feeding helical gear (8), upper feeding worm shaft (9) and feeding handwheel (18); Upper feeding worm shaft (9) is by being installed in the first angular contact ball bearing (15) and the second angular contact ball bearing (16) supporting location on its two ends axle journal, upper feeding worm shaft (9) front end fixed installation feeding handwheel (18) drives upper feeding worm shaft (9) rotation by rotating feeding handwheel (18); Leading screw seat (2) is fixed on the slide plate (1), ball-screw (3) one ends are installed in the leading screw seat (2) and by round nut and are locked, be equipped with the nut seat (5) that cooperates with its formation screw thread transmission on the ball-screw (3), upper feeding helical gear (8) is fixedly mounted on the nut seat (5), helical tooth engaged transmission on upper feeding helical gear (8) and the upper feeding worm shaft (9) drives upper feeding helical gear (8) when upper feeding worm shaft (9) rotates and nut seat (5) rotates synchronously; Described fixed body (6) is installed on the nut seat (5) by the bearing assembly supporting, moves axially at ball-screw (3) when nut seat (5) rotates, and does accurate straight-line feed motion thereby drive fixed body (6).
2. centerless grinder fixed body feed mechanism as claimed in claim 1, it is characterized in that: described bearing assembly comprises the first thrust ball bearing with flat seat (4), radial location ball bearing (7) and the second thrust ball bearing with flat seat (10); The first thrust ball bearing with flat seat (4) is installed in nut seat (5) one ends, a seat ring of the first thrust ball bearing with flat seat (4) is bearing on the end step of nut seat (5), and another seat ring of the first thrust ball bearing with flat seat (4) is bearing in the first end of fixed body (6); Radial location ball bearing (7) is installed on the nut seat (5), and the outer ring of radial location ball bearing (7) is bearing in the fixed body (6); The second thrust ball bearing with flat seat (10) is installed in nut seat (5) other end, a seat ring of the second thrust ball bearing with flat seat (10) is bearing on the middle bench of nut seat (5), another seat ring of the second thrust ball bearing with flat seat (10) is bearing in the thrust metal (11), described thrust metal (11) is fixedly mounted on the nut seat (5), and the second end of described fixed body (6) is fixedly connected on the thrust metal (11).
3. centerless grinder fixed body feed mechanism as claimed in claim 1, it is characterized in that: the second end of described fixed body (6) is equipped with gland (12), fastening nail (13) is installed on the described gland (12), and described fastening nail (13) is used for adjusting the end play between gland (12) and thrust metal (11).
4. centerless grinder fixed body feed mechanism as claimed in claim 1, it is characterized in that: handwheel dial (17) is installed on the described upper feeding worm shaft (9), described handwheel dial (17) is fixedly mounted on upper feeding worm shaft (9) front end, and feeding handwheel (18) is fixedly connected on the handwheel dial (17).
5. centerless grinder fixed body feed mechanism as claimed in claim 4, it is characterized in that: the minimum calibration on the described handwheel dial (17) is every little lattice 0.001mm.
6. centerless grinder fixed body feed mechanism as claimed in claim 1 is characterized in that: the upper cover of described ball-screw (3) has leading screw protective cover (14), and leading screw protective cover (14) is fixed on the described gland (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220445925 CN202753006U (en) | 2012-09-03 | 2012-09-03 | Fixed body feeding mechanism of centerless grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220445925 CN202753006U (en) | 2012-09-03 | 2012-09-03 | Fixed body feeding mechanism of centerless grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202753006U true CN202753006U (en) | 2013-02-27 |
Family
ID=47732201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220445925 Expired - Fee Related CN202753006U (en) | 2012-09-03 | 2012-09-03 | Fixed body feeding mechanism of centerless grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202753006U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625961A (en) * | 2014-06-04 | 2015-05-20 | 芜湖中驰机床制造有限公司 | Main feed screw device for grinding machine |
| CN104786148A (en) * | 2015-05-14 | 2015-07-22 | 吴江市新科缝制设备有限公司 | Adjusting rod device of centerless grinding machine |
| CN106862591A (en) * | 2017-03-13 | 2017-06-20 | 上海电气电站设备有限公司 | Macrotype axes series parts axle journal turning equipment and turning process |
| CN115514137A (en) * | 2022-09-20 | 2022-12-23 | 西安华欧精密机械有限责任公司 | High-speed low-noise electric cylinder capable of being accurately positioned |
-
2012
- 2012-09-03 CN CN 201220445925 patent/CN202753006U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625961A (en) * | 2014-06-04 | 2015-05-20 | 芜湖中驰机床制造有限公司 | Main feed screw device for grinding machine |
| CN104625961B (en) * | 2014-06-04 | 2017-01-25 | 芜湖中驰机床制造有限公司 | Main feed screw device for grinding machine |
| CN104786148A (en) * | 2015-05-14 | 2015-07-22 | 吴江市新科缝制设备有限公司 | Adjusting rod device of centerless grinding machine |
| CN104786148B (en) * | 2015-05-14 | 2017-05-31 | 吴江市新科缝制设备有限公司 | A kind of regulation lever apparatus of centerless grinder |
| CN106862591A (en) * | 2017-03-13 | 2017-06-20 | 上海电气电站设备有限公司 | Macrotype axes series parts axle journal turning equipment and turning process |
| CN115514137A (en) * | 2022-09-20 | 2022-12-23 | 西安华欧精密机械有限责任公司 | High-speed low-noise electric cylinder capable of being accurately positioned |
| CN115514137B (en) * | 2022-09-20 | 2024-04-23 | 西安华欧精密机械有限责任公司 | High-speed low-noise electric cylinder with accurate positioning function |
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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: 20130227 Termination date: 20170903 |