CN202753005U - Main feeding mechanism of centerless grinding machine - Google Patents
Main feeding mechanism of centerless grinding machine Download PDFInfo
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- CN202753005U CN202753005U CN 201220444648 CN201220444648U CN202753005U CN 202753005 U CN202753005 U CN 202753005U CN 201220444648 CN201220444648 CN 201220444648 CN 201220444648 U CN201220444648 U CN 201220444648U CN 202753005 U CN202753005 U CN 202753005U
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- bearing
- lower feeding
- seat
- worm shaft
- nut
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Abstract
The utility model relates to a main feeding mechanism of a centerless grinding machine. A lower 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 lower feeding worm shaft, a feeding hand wheel is fixedly installed at the front end of the lower feeding worm shaft, and the feeding hand wheel rotates to drive the lower feeding worm shaft to rotate. A lead screw base is fixed on a swing plate of a guide wheel frame, one end of a ball screw is installed in the lead screw base to be locked and fixed, a nut base is assembled on the ball screw, a lower feeding bevel gear is fixedly installed on the nut base, the lower feeding bevel gear is in meshing transmission with spiral teeth of the lower feeding worm shaft, and the lower feeding worm shaft rotates to drive the lower feeding bevel gear and the nut base to rotate synchronously. A sliding plate 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 straight line feeding motion. The main feeding mechanism of the centerless grinding machine is simple and compact in structure, convenient to process and manufacture, capable of driving the sliding plate 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 master 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 finger plate and can move forward into to, slide plate drives by main feed mechanism, moves in the finger plate upper feeding.Existing common centerless grinder adopts hydraulic drive slide block swing mechanism as main feed mechanism mostly, is converted to the rectilinear motion of guide wheel by T shape leading screw and nut.Mainly there is following shortcoming in it: (1), mechanism driving chain length, and transmission accuracy is low, and the hydraulic jack low-speed performance is not easy to guarantee; (2), T shape leading screw and nut precision be low, easily wearing and tearing, precision stability is poor; (3), the motion of wheel frame is the non-linear variable motion of successively decreasing, and affected the part crudy.
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 master feed mechanism is provided, and it is simple and compact for structure, and convenient processing and manufacture can drive the accurate feeding of slide plate, transmission accuracy height and long service life.
The technical scheme that provides according to the utility model: centerless grinder master feed mechanism is characterized in that: comprise leading screw seat, ball-screw, nut seat, lower feeding helical gear, lower feeding worm shaft and feeding handwheel; The lower 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 lower feeding worm shaft front end fixed installation feeding handwheel rotates by rotating feeding handwheel drive lower feeding worm shaft; The leading screw seat is fixed on the finger 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 lower feeding helical gear is fixedly mounted on the nut seat, helical tooth engaged transmission on lower feeding helical gear and the lower feeding worm shaft drives the lower feeding helical gear when lower feeding worm shaft rotates and nut seat rotates synchronously; Described slide plate 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 slide plate.
As further improvement of the utility model, described bearing assembly comprises the first plane bearing, radial location ball bearing and the second plane bearing; The nut cover for seat is installed on the described nut seat, described lower feeding helical gear is connected to the first end of nut cover for seat, described the first plane bearing is installed on the lower feeding helical gear, a seat ring of the first plane bearing is bearing on the step of the helical gear end of lower feeding, and another seat ring of the first plane bearing is bearing in the first end of slide plate; The radial location ball bearing is installed in nut seat and puts, and the outer ring of radial location ball bearing is bearing in the slide plate; The second plane bearing is arranged on nut cover for seat the second end place, and a seat ring of the second plane bearing is bearing on the end step of nut seat, and another seat ring of the second plane bearing is bearing in the bearing block, and described bearing block is fixedly mounted in the second end of slide plate.
As further improvement of the utility model, the second end of described slide plate 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 bearing block.
As further improvement of the utility model, on the described lower feeding worm shaft handwheel dial is installed, described handwheel dial is fixedly mounted on lower 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.
The utility model compared with prior art, advantage is:The utility model is simple and compact for structure, convenient processing and manufacture, have 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 master feed mechanism precision is very high, and 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.
Fig. 3 is the right view of Fig. 1.
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 master feed mechanism among the embodiment mainly is comprised of parts such as leading screw seat 1, gland 2, bearing block 3, the second plane bearing 4, nut cover for seat 5, nut seat 6, radial location ball bearing 7, the first plane bearing 8, slide plate 9, feeding handwheel 10, the second angular contact ball bearing 11, handwheel dial 12, lower feeding worm shaft 13, lower feeding helical gear 14, finger plate 15, the first angular contact ball bearing 16, ball-screw 17 and fastening nails 18.
As shown in Figure 1 and Figure 2, described lower feeding worm shaft 13 is by being installed in the first angular contact ball bearing 16 and the second angular contact ball bearing 11 supporting location on its two ends axle journal, lower feeding worm shaft 13 front ends fixed installation feeding handwheel 10 drives 13 rotations of lower feeding worm shaft by rotating feeding handwheel 10; Leading screw seat 1 is fixed on the finger plate 15 of wheel frame, ball-screw 17 1 ends are installed in the leading screw seat 1 and by round nut and are locked, be equipped with the nut seat 6 that cooperates with its formation screw thread transmission on the ball-screw 17, lower feeding helical gear 14 is fixedly mounted on the nut seat 6, helical tooth engaged transmission on lower feeding helical gear 14 and the lower feeding worm shaft 13, lower feeding worm shaft 13 drives lower feeding helical gear 14 when rotating and nut seat 6 rotates synchronously; Described slide plate 9 is installed on the nut seat 6 by the bearing assembly supporting, moves axially at ball-screw 17 when nut seat 6 rotates, and does accurate straight-line feed motion thereby drive slide plate 9.
As shown in Figure 1 and Figure 2, among the utility model embodiment, described bearing assembly mainly is comprised of the first plane bearing 8, radial location ball bearing 7 and the second plane bearing 4; With screw nut cover for seat 5 is installed on the described nut seat 6, described lower feeding helical gear 14 usefulness screws are connected to the first end of nut cover for seat 5, described the first plane bearing 8 is installed on the lower feeding helical gear 14, a seat ring of the first plane bearing 8 is bearing on the end step of lower feeding helical gear 14, and another seat ring of the first plane bearing 8 is bearing in the first end of slide plate 9; Described radial location ball bearing 7 is installed on the nut cover for seat 5, and the outer ring of radial location ball bearing 7 is bearing in the slide plate 9; Described the second plane bearing 4 is arranged on nut cover for seat 5 second end places, a seat ring of the second plane bearing 4 is bearing on the end step of nut seat 6, another seat ring of the second plane bearing 4 is bearing in the bearing block 3, and described bearing block 3 is fixedly mounted in the second end of slide plate 9.The second end of described slide plate 9 is equipped with gland 2, on the described gland 2 fastening nail 18 is installed, and described fastening nail 18 is for the end play of adjusting 3 of gland 2 and bearing blocks.
As shown in Figure 2, on the described lower feeding worm shaft 13 handwheel dial 12 is installed, described handwheel dial 12 is fixedly mounted on lower feeding worm shaft 13 front ends by trip bolt, feeding handwheel 10 is fixedly connected on the handwheel dial 12 by screw, drive 13 rotations of lower feeding worm shaft by rotating feeding handwheel 10, fly dial 12 can be read the rotational angle of lower feeding worm shaft 13.In the utility model, the minimum calibration on the described handwheel dial 12 is every little lattice 0.001mm, and degree of regulation is very high.
During concrete the application, hand rotation feeding handwheel 10, feeding handwheel 10 drives lower feeding worm shaft 13 and rotates, lower feeding worm shaft 13 drives lower feeding helical gear 14 and rotates when rotating, thereby nut seat 6 and nut cover for seat 5 are rotated synchronously, this moment, ball-screw 17 was motionless, moved axially at ball-screw 17 when nut seat 6 and nut cover for seat 5 are rotated, and did accurate straight-line feed motion thereby drive slide plate 9.
Centerless grinder master 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 master feed mechanism precision is very high.
Claims (5)
1. centerless grinder master feed mechanism is characterized in that: comprise leading screw seat (1), ball-screw (17), nut seat (6), lower feeding helical gear (14), lower feeding worm shaft (13) and feeding handwheel (10); Lower feeding worm shaft (13) is by being installed in the first angular contact ball bearing (16) and the second angular contact ball bearing (11) supporting location on its two ends axle journal, lower feeding worm shaft (13) front end fixed installation feeding handwheel (10) drives lower feeding worm shaft (13) rotation by rotating feeding handwheel (10); Leading screw seat (1) is fixed on the finger plate (15) of wheel frame, ball-screw (17) one ends are installed in the leading screw seat (1) and by round nut and are locked, be equipped with the nut seat (6) that cooperates with its formation screw thread transmission on the ball-screw (17), lower feeding helical gear (14) is fixedly mounted on the nut seat (6), helical tooth engaged transmission on lower feeding helical gear (14) and the lower feeding worm shaft (13) drives lower feeding helical gear (14) when lower feeding worm shaft (13) rotates and nut seat (6) rotates synchronously; Described slide plate (9) is installed on the nut seat (6) by the bearing assembly supporting, moves axially at ball-screw (17) when nut seat (6) rotates, and does accurate straight-line feed motion thereby drive slide plate (9).
2. centerless grinder master feed mechanism as claimed in claim 1, it is characterized in that: described bearing assembly comprises the first plane bearing (8), radial location ball bearing (7) and the second plane bearing (4); Nut cover for seat (5) is installed on the described nut seat (6), described lower feeding helical gear (14) is connected to the first end of nut cover for seat (5), described the first plane bearing (8) is installed on the lower feeding helical gear (14), a seat ring of the first plane bearing (8) is bearing on the end step of lower feeding helical gear (14), and another seat ring of the first plane bearing (8) is bearing in the first end of slide plate (9); Radial location ball bearing (7) is installed on the nut cover for seat (5), and the outer ring of radial location ball bearing (7) is bearing in the slide plate (9); The second plane bearing (4) is arranged on nut cover for seat (5) second end places, a seat ring of the second plane bearing (4) is bearing on the end step of nut seat (6), another seat ring of the second plane bearing (4) is bearing in the bearing block (3), and described bearing block (3) is fixedly mounted in the second end of slide plate (9).
3. centerless grinder master feed mechanism as claimed in claim 1, it is characterized in that: the second end of described slide plate (9) is equipped with gland (2), fastening nail (18) is installed on the described gland (2), and described fastening nail (18) is used for adjusting the end play between gland (2) and bearing block (3).
4. centerless grinder master feed mechanism as claimed in claim 1, it is characterized in that: handwheel dial (12) is installed on the described lower feeding worm shaft (13), described handwheel dial (12) is fixedly mounted on lower feeding worm shaft (13) front end, and feeding handwheel (10) is fixedly connected on the handwheel dial (12).
5. centerless grinder master feed mechanism as claimed in claim 1, it is characterized in that: the minimum calibration on the described handwheel dial (12) is every little lattice 0.001mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220444648 CN202753005U (en) | 2012-09-03 | 2012-09-03 | Main feeding mechanism of centerless grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220444648 CN202753005U (en) | 2012-09-03 | 2012-09-03 | Main feeding mechanism of centerless grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202753005U true CN202753005U (en) | 2013-02-27 |
Family
ID=47732200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220444648 Expired - Fee Related CN202753005U (en) | 2012-09-03 | 2012-09-03 | Main feeding mechanism of centerless grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202753005U (en) |
Cited By (2)
| 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 |
| WO2017111748A1 (en) | 2015-12-23 | 2017-06-29 | Ortadogu Rulman Sanayi Ve Ticaret Anonim Sirketi | System for loading roller bearing rings to centerless grinding machine |
-
2012
- 2012-09-03 CN CN 201220444648 patent/CN202753005U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| WO2017111748A1 (en) | 2015-12-23 | 2017-06-29 | Ortadogu Rulman Sanayi Ve Ticaret Anonim Sirketi | System for loading roller bearing rings to centerless grinding machine |
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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 |