CN216179634U - Grinding wheel spindle mounting structure for high-precision centerless grinding machine - Google Patents
Grinding wheel spindle mounting structure for high-precision centerless grinding machine Download PDFInfo
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- CN216179634U CN216179634U CN202122444575.0U CN202122444575U CN216179634U CN 216179634 U CN216179634 U CN 216179634U CN 202122444575 U CN202122444575 U CN 202122444575U CN 216179634 U CN216179634 U CN 216179634U
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 210000004907 gland Anatomy 0.000 claims description 40
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 229910001651 emery Inorganic materials 0.000 abstract description 30
- 238000009434 installation Methods 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000020347 spindle assembly Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a high accuracy is emery wheel axle mounting structure for centerless grinder, includes emery wheel axle and emery wheel axle sleeve, and the emery wheel axle sleeve passes through bearing assembly suit on the outer peripheral face at emery wheel axle middle part, is equipped with the end cover subassembly in the both sides of emery wheel axle sleeve, seals the bearing assembly at the intracavity that holds between emery wheel axle sleeve and emery wheel axle through the end cover subassembly, the bearing assembly include a plurality of groups of bearing and adjustment pad, the adjustment pad set up the central point department of putting in holding the chamber, the quantity of bearing is the even number to the symmetric distribution is in the both sides of adjustment pad. In the structure, the grinding wheel is sleeved on the outer peripheral surface of the middle part of the grinding wheel shaft through the bearing assembly, the shaft diameter ends on two sides are the optical axis and do not need to be provided with bearing chambers, the two ends of the grinding wheel shaft can be fastened on two supports of the grinding carriage during installation, the shaft ends on two sides are used as supporting points, the outer peripheral surface of the middle part of the grinding wheel shaft is used as a revolution surface, the grinding wheel is rotated and the grinding wheel shaft is not rotated during grinding, the rotation is more stable, and therefore the grinding precision of the roller is improved.
Description
Technical Field
The utility model relates to the technical field of centerless grinding machine equipment for processing rollers, in particular to a grinding wheel spindle mounting structure for a high-precision centerless grinding machine.
Background
At present, a centerless grinder is a high-efficiency finishing machine tool, and the existing centerless grinder generally comprises the following parts: the grinding machine comprises a machine tool main body part, a guide wheel frame assembly, a grinding wheel frame, a grinding wheel spindle assembly, a grinding wheel dresser, an auxiliary power system, a cooling liquid supply system and the like, wherein the guide wheel frame is arranged on one side of the machine tool main body, the grinding wheel frame is arranged on the other side of the machine tool main body, the grinding wheel spindle assembly is arranged on the grinding wheel frame and driven by the power system to realize fast forward, fast backward and working feeding, a roller to be ground is conveyed to a grinding gap between a guide wheel and the grinding wheel by a feeding mechanism, and the roller is gradually conveyed out in grinding by the relative motion of the guide wheel and the grinding wheel;
most of the existing grinding wheel shafts are cantilever shafts and single supports, and are generally installed in the following mode; the axle footpath end of emery wheel axle both sides is equipped with the bearing room to through the rotatable installation of bearing assembly on the carriage, when abrasive machining, emery wheel and emery wheel axle rotate together, and drive the roller of processing and move forward, this structure has following defect: during grinding, the grinding wheel and the grinding wheel shaft rotate together, stability is poor, and secondly, when the grinding wheel is started or stopped, the grinding wheel shaft and bearings on two sides are abraded instantly, so that grinding precision of the roller is greatly reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a grinding wheel spindle mounting structure for a high-precision centerless grinding machine.
The technical scheme adopted by the utility model is as follows: the utility model provides a high accuracy is emery wheel axle mounting structure for centerless grinder, includes the emery wheel axle and installs the emery wheel axle sleeve on the emery wheel axle, the emery wheel axle sleeve pass through bearing assembly suit on the outer peripheral face at emery wheel axle middle part, be equipped with the end cover subassembly in the both sides of emery wheel axle sleeve, seal the bearing assembly at the intracavity that holds between emery wheel axle sleeve and emery wheel axle through the end cover subassembly, the bearing assembly include a plurality of groups bearing and adjustment pad, the adjustment pad set up the central point department of putting in holding the chamber, the quantity of bearing is the even number to the symmetric distribution is in the both sides of adjustment pad.
Preferably, a protruding part is arranged on one side of the grinding wheel shaft sleeve, and a flange is connected to the end part, far away from the protruding part, of the grinding wheel shaft sleeve.
Preferably, the flange is fixedly connected with the end part of the grinding wheel shaft sleeve through a locking part, and a groove for mounting the grinding wheel is formed between the flange and the protruding part on the other side of the grinding wheel shaft sleeve.
Preferably, the grinding wheel is of a combined grinding wheel structure.
Preferably, the bearing is an angular contact ball bearing.
Preferably, the adjusting pad is composed of an inner adjusting pad for positioning the bearing inner ring and an outer adjusting pad for positioning the bearing outer ring.
As a preferred scheme, the end cover assembly comprises a left end cover unit and a right end cover unit, the left end cover unit and the right end cover unit respectively comprise an inner gland and an outer gland, and the shaft end bearing cavity of the grinding wheel shaft sleeve is sealed through the inner gland and the outer gland.
Preferably, the end cover assembly is characterized in that the inner gland is sleeved on the grinding wheel shaft and fixedly connected with the end part of the grinding wheel shaft through the locking piece, and the outer gland is sleeved on the corresponding inner gland and fixedly connected with the end part of the grinding wheel shaft through the locking piece.
Preferably, the outer gland is sleeved on the inner gland corresponding to the outer gland through a sealing assembly.
The utility model has the beneficial effects that:
this scheme provides a grinding spindle mounting structure for high accuracy centerless grinder through the structural design of innovation, and concrete advantage is as follows: the grinding wheel is sleeved on the outer peripheral surface of the middle part of the grinding wheel shaft through the bearing assembly, the end cover assemblies are arranged on two sides of the grinding wheel shaft, the bearing assembly is sealed in a containing cavity between the grinding wheel shaft and the grinding wheel shaft through the end cover assemblies, the bearing assembly comprises a plurality of groups of bearings and adjusting pads, the adjusting pads are arranged at the central positions of the containing cavity, the number of the bearings is even, the bearings are symmetrically distributed on two sides of the adjusting pads, in the structure, the grinding wheel is sleeved on the outer peripheral surface of the middle part of the grinding wheel shaft through the bearing assembly, the shaft diameter ends of two sides are optical axes, bearing chambers are not needed to be arranged, two ends of the grinding wheel shaft can be fastened on two supports of the grinding wheel frame during installation, the shaft ends of two sides are used as supporting points, the outer peripheral surface of the middle part of the grinding wheel shaft is used as a rotating surface, the grinding wheel rotates, the grinding wheel shaft does not rotate, and rotates more stably, thereby improving the grinding precision of the roller.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention in the prior art, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
The labels in the figure are: 1. the grinding wheel comprises a grinding wheel shaft sleeve, 2, a right outer gland, 3, a sealing cover, 4, a right inner gland, 5, an inner adjusting pad, 6, an outer adjusting pad, 7, a balance block, 8, a grinding wheel shaft, 9, a left inner gland, 10, a left outer gland, 11, a flange plate, 12 and a bearing.
Detailed Description
The utility model is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
It should be noted that: unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" and "an" or "the" and similar referents in the description and claims of the present invention are not to be construed as limiting in number, but rather as indicating the presence of at least one. The word "comprise" or "comprises", and the like, indicates that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, but does not exclude other elements or items having the same function.
The utility model provides a high accuracy is emery wheel axle mounting structure for centerless grinder, includes the emery wheel axle and installs the emery wheel axle sleeve on the emery wheel axle, the emery wheel axle sleeve pass through bearing assembly suit on the outer peripheral face at emery wheel axle middle part, be equipped with the end cover subassembly in the both sides of emery wheel axle sleeve, seal the bearing assembly at the intracavity that holds between emery wheel axle sleeve and emery wheel axle through the end cover subassembly, the bearing assembly include a plurality of groups bearing and adjustment pad, the adjustment pad set up the central point department of putting in holding the chamber, the quantity of bearing is the even number to the symmetric distribution is in the both sides of adjustment pad.
In the scheme, one side of the grinding wheel shaft sleeve is provided with a protruding part, and the end part of the grinding wheel shaft sleeve far away from the protruding part is connected with a flange plate.
In the scheme, the flange plate is fixedly connected with the end part of the grinding wheel shaft sleeve through the locking part, and a groove for installing the grinding wheel is formed between the flange plate and the protruding part on the other side of the grinding wheel shaft sleeve.
In the scheme, the grinding wheel adopts a combined grinding wheel structure.
In this scheme, the end cover subassembly includes left end cover unit and right end cover unit, left end cover unit and right end cover unit all include interior gland and external gland, seal the axle head bearing cavity of emery wheel axle sleeve through interior gland and external gland.
Examples 1,
The detailed structure of the present embodiment is described below with reference to fig. 1:
a grinding wheel spindle mounting structure for a high-precision centerless grinding machine, which is provided with a grinding wheel and is integrally assembled on a grinding carriage, the lower part of the grinding carriage is arranged on a machine tool body through a pair of rolling guide rails, the whole grinding carriage is driven by a stepping motor, a reducer and a transmission assembly, the fast forward, fast backward and working feed of the grinding wheel can be realized, wherein, the two ends of the grinding wheel shaft 8 are optical axes, no bearing chamber structure is arranged, the grinding wheel shaft sleeve 1 for assembling the grinding wheel is directly sheathed on the middle surface of the grinding wheel shaft 8 through a bearing component, the two ends of the grinding wheel shaft 8 can be fastened on two supports of the grinding wheel frame during installation, the shaft ends on two sides are used as supporting points, the peripheral surface of the middle part of the grinding wheel shaft is used as a rotary surface, the grinding wheel is rotated during grinding, the grinding wheel shaft does not rotate, the grinding wheel rotates more stably in the machining process, and therefore the grinding precision of the roller is improved.
As shown in fig. 1, the grinding wheel spindle mounting structure mainly comprises a grinding wheel spindle sleeve 1, a grinding wheel spindle 8, bearings 12, adjusting pads and end cover assemblies, wherein the grinding wheel spindle sleeve 1 is sleeved on the outer peripheral surface of the middle part of the grinding wheel spindle 8 through the bearings 12 and the adjusting pads arranged between the bearings 12, a bearing cavity for mounting the bearings 12 and the adjusting pads is formed between the inner wall of the grinding wheel spindle sleeve 1 and the outer peripheral surface of the middle part of the grinding wheel spindle 8, the adjusting pads are arranged at the central position of the bearing cavity in the bearing cavity, the number of the bearings 12 is even, and the bearings 12 are symmetrically distributed on two sides of the adjusting pads; in this embodiment, for example, six pairs of angular contact ball bearings are provided, wherein the adjustment pad is disposed at the center of the bearing cavity, three pairs of angular contact ball bearings are symmetrically disposed on two sides of the adjustment pad, the adjustment pad is composed of an inner adjustment pad 5 and an outer adjustment pad 6, the inner and outer rings of the three pairs of bearings on two sides are positioned by the inner adjustment pad 5 and the outer adjustment pad 6, and the bearing clearance can be adjusted by replacing adjustment pads of different types.
In this embodiment, the right side of the grinding wheel sleeve 1 is provided with a protrusion, the left end of the grinding wheel sleeve 1 far away from the protrusion is connected with a flange 11, the flange is fixedly connected with the end of the grinding wheel sleeve through a locking member, and a groove for installing a grinding wheel is formed between the flange 11 and the protrusion on the other side of the grinding wheel sleeve 1.
In the scheme, the balance weight 7 is additionally arranged on the outer surface of the flange plate 11, so that the balance of the grinding wheel is required to be carried out in order to avoid the adverse effect of the vibration of the grinding wheel on the processing quality of the roller, and the balance of the grinding wheel is divided into static balance and dynamic balance; the water balance device controlled by a program system is used for balancing the grinding wheel automatically when the grinding wheel works normally after the grinding wheel is adjusted, the vibration value is less than or equal to 0.2 mu m when the grinding wheel works normally, and the vibration value is less than or equal to 0.2 mu m when the grinding wheel works normally.
It should be noted that: the grinding wheel used in this embodiment is preferably a combined grinding wheel structure formed by assembling a plurality of grinding wheels with different particle sizes, and is described in detail as follows: the front half part is a grinding wheel, the rear half part is a polishing wheel, the processed roller has very high surface roughness, and the accurate grinding can reach 0.06-0.010 mu m generally; the combined grinding wheel is only roughly dressed generally, and after the grinding wheel is ground in, dressing is not needed until the grinding wheel is used to a scrapped size, because the grinding wheel can realize synchronous self-sharpening.
In this embodiment, the end cap assembly includes a left end cap unit and a right end cap unit, both of which include an inner gland and an outer gland, and the inner gland and the outer gland seal a shaft end bearing cavity of the grinding wheel spindle sleeve; the left end cover unit is taken as an example for description: wherein, the grinding wheel comprises a left inner gland 9 and a left outer gland 10, the left inner gland 9 is fixedly connected with the end part of the grinding wheel shaft 8 through a screw, the left outer gland 10 is sleeved on the left inner gland 9 and is fixedly connected with the end part of the grinding wheel shaft sleeve 1 through a screw component,
herein, a sealing assembly is further arranged between the left outer gland 10 and the left inner gland 9, and the left outer gland 10 is sleeved on the left inner gland 9 through the sealing assembly; in this embodiment, the sealing assembly preferably includes an O-ring or a skeleton rubber oil seal disposed between the left outer gland and the left inner gland.
It should be noted that: the above description only describes the connection relationship of the components in the left end cover unit, and those skilled in the art can fully refer to the above description to assemble the structure of the right end cover unit, and the description is not repeated.
It should be noted that while the utility model has been described in terms of the above-mentioned embodiments, other embodiments are also possible. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model, and it is intended that all such changes and modifications be covered by the appended claims and their equivalents.
Claims (9)
1. The utility model provides a grinding spindle mounting structure for high accuracy centerless grinder, includes the grinding spindle and installs the epaxial grinding wheel axle sleeve of grinding wheel, its characterized in that: the grinding wheel shaft sleeve is sleeved on the outer peripheral surface of the middle part of the grinding wheel shaft through a bearing assembly, end cover assemblies are arranged on two sides of the grinding wheel shaft sleeve, the bearing assembly is sealed in a containing cavity between the grinding wheel shaft sleeve and the grinding wheel shaft through the end cover assemblies, the bearing assembly comprises a plurality of groups of bearings and adjusting pads, the adjusting pads are arranged at the center of the containing cavity, the number of the bearings is even, and the bearings are symmetrically distributed on two sides of the adjusting pads.
2. The grinding spindle mounting structure for a high-precision centerless grinder of claim 1, wherein: a protruding part is arranged on one side of the grinding wheel shaft sleeve, and a flange plate is connected to the end part, far away from the protruding part, of the grinding wheel shaft sleeve.
3. The grinding spindle mounting structure for a high-precision centerless grinder of claim 2, wherein: the flange plate is fixedly connected with the end part of the grinding wheel shaft sleeve through a locking part, and a groove for installing the grinding wheel is formed between the flange plate and the protruding part on the other side of the grinding wheel shaft sleeve.
4. The grinding spindle mounting structure for a high-precision centerless grinder of claim 2, wherein: the grinding wheel adopts a combined grinding wheel structure.
5. The grinding spindle mounting structure for a high-precision centerless grinder of claim 1, wherein: the bearing is an angular contact ball bearing.
6. The grinding spindle mounting structure for a high-precision centerless grinder of claim 1, wherein: the adjusting pad is composed of an inner adjusting pad used for positioning the bearing inner ring and an outer adjusting pad used for positioning the bearing outer ring.
7. The grinding spindle mounting structure for a high-precision centerless grinder of claim 1, wherein: the end cover assembly comprises a left end cover unit and a right end cover unit, the left end cover unit and the right end cover unit both comprise an inner gland and an outer gland, and the shaft end bearing cavity of the grinding wheel shaft sleeve is sealed through the inner gland and the outer gland.
8. The grinding spindle mounting structure for a high-precision centerless grinder of claim 7, wherein: the end cover assembly is characterized in that the inner gland is sleeved on the grinding wheel shaft and is fixedly connected with the end part of the grinding wheel shaft through the locking piece, and the outer gland is sleeved on the corresponding inner gland and is fixedly connected with the end part of the grinding wheel shaft through the locking piece.
9. The grinding spindle mounting structure for a high-precision centerless grinder of claim 7, wherein: the outer pressure cover is sleeved on the inner pressure cover corresponding to the outer pressure cover through a sealing assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122444575.0U CN216179634U (en) | 2021-10-12 | 2021-10-12 | Grinding wheel spindle mounting structure for high-precision centerless grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122444575.0U CN216179634U (en) | 2021-10-12 | 2021-10-12 | Grinding wheel spindle mounting structure for high-precision centerless grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216179634U true CN216179634U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122444575.0U Active CN216179634U (en) | 2021-10-12 | 2021-10-12 | Grinding wheel spindle mounting structure for high-precision centerless grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216179634U (en) |
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2021
- 2021-10-12 CN CN202122444575.0U patent/CN216179634U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231023 Address after: 471000 Jinghua market, Li Lou, Luolong District, Luoyang, Henan, China Patentee after: HENAN WEICHUANG BEARING PRECISION TECHNOLOGY Co.,Ltd. Address before: 471000 room 1-3, office building in Jinghua market Weichuang Precision Industry Institute, intersection of East Ring Road and Luoyue Road, Lilou Town, Luolong District, Luoyang City, Henan Province Patentee before: Zhaoyang Technology (Henan) Co.,Ltd. |
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| TR01 | Transfer of patent right |