CN219725818U - Grinding wheel correction device - Google Patents
Grinding wheel correction device Download PDFInfo
- Publication number
- CN219725818U CN219725818U CN202321126216.3U CN202321126216U CN219725818U CN 219725818 U CN219725818 U CN 219725818U CN 202321126216 U CN202321126216 U CN 202321126216U CN 219725818 U CN219725818 U CN 219725818U
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- CN
- China
- Prior art keywords
- shaft
- grinding wheel
- connecting frame
- correction device
- driving motor
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- 238000012937 correction Methods 0.000 title claims abstract description 33
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 35
- 239000010432 diamond Substances 0.000 claims abstract description 35
- 239000000428 dust Substances 0.000 claims description 20
- 125000006850 spacer group Chemical group 0.000 claims description 13
- 210000004907 gland Anatomy 0.000 claims description 6
- 238000003754 machining Methods 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 229910001651 emery Inorganic materials 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Landscapes
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The utility model discloses a grinding wheel correction device, which comprises a fixed bottom plate, a connecting frame, a driving motor, a diamond roller shaft, a trimmer connecting shaft and a diamond roller, wherein a rotating shaft is arranged on the fixed bottom plate; the first shaft part of the diamond roller shaft is rotationally connected in the angular contact bearing and is connected with an output shaft of the driving motor; compared with the prior art, the grinding wheel correction device provided by the utility model has the advantages that after being connected to a machine tool for machining cycloidal pin wheels, the grinding wheel can be corrected in real time according to the measurement result in the machining process of pin gear shells, the consistency of the internal tooth size precision is ensured, the form and position tolerance meets the design requirement, the grinding wheel correction device is integrated into a machine tool system, the full-automatic grinding wheel correction can be implemented by a numerical control device of the machine tool according to the grinding parameter design, and the errors existing in manual operation are solved.
Description
Technical Field
The utility model relates to the technical field of internal tooth processing of an RV speed reducer output disc, in particular to a grinding wheel correction device.
Background
The RV speed reducer is a precise transmission speed reducing mechanism, and the precise core transmission structure is ensured by the cycloidal pin gear of the last stage, so that the machining precision of the cycloidal pin gear directly influences the integral precision of the speed reducer, and the cycloidal pin gear is a transmission structure consisting of the cycloidal pin gear and a pin gear housing. Therefore, how to solve the machining precision of the cycloidal pin gear becomes to solve the problems of the machining precision of the cycloidal gear and the machining precision of the pin gear housing. The existing mechanism does not have a grinding wheel correction device, but adopts a ceramic sintering CBN molding grinding wheel, has the problems that the ordering period is long, the real-time trimming on a machine tool can not be carried out any more, and the grinding wheel needs to be returned to a manufacturer for correction after being worn. Because the grinding wheel cannot be corrected on the machine tool in real time according to the machining condition, the sizes of the internal teeth are inconsistent in the machining process, and the form and position tolerance is not satisfied with the design requirement.
Disclosure of Invention
The utility model aims to provide a grinding wheel correction device which is used for solving the technical problems.
A grinding wheel dressing apparatus comprising:
the fixed bottom plate is provided with a rotating shaft, and the rotating shaft is provided with external threads;
one end of the connecting frame is in threaded connection with the rotating shaft, the other end of the connecting frame is connected with the fixed bottom plate through a fixed bolt and a fixed nut, a rotating cavity is formed in the connecting frame, and an angular contact bearing is arranged in the rotating cavity;
the driving motor is connected to one end of the rotating cavity, an output shaft of the driving motor extends into the rotating cavity, and an elastic tensioning sleeve is connected to the output shaft;
the diamond roller shaft comprises a first shaft part and a second shaft part, and the first shaft part is rotationally connected in the angular contact bearing and is connected with an output shaft of the driving motor;
a trimmer connecting shaft connected to the second shaft portion;
and the diamond roller is arranged on the trimmer connecting shaft.
According to one embodiment of the utility model, the connecting frame is provided with an adjusting screw, and after the fixing screw is loosened, the connecting frame swings up and down around the rotating shaft by rotating the adjusting screw through threads on the adjusting screw.
According to one embodiment of the utility model, a bearing cover is arranged at one end of the rotating cavity facing the driving motor, the driving motor is fixedly connected with the bearing cover, and an output shaft of the driving motor is connected with the first shaft part of the diamond roller shaft through a lock nut.
According to one embodiment of the utility model, the number of the angular contact bearings is two, an inner spacer bush and an outer spacer bush which are positioned between the two angular contact bearings are arranged in the rotating cavity, and the inner spacer bush is arranged at the part of the first shaft part which is positioned between the two groups of angular contact bearings.
According to one embodiment of the utility model, one end of the rotating cavity, which is far away from the driving motor, is provided with a framework oil seal, and the framework oil seal is arranged between the connecting frames.
According to one embodiment of the utility model, the dust removing device further comprises a dust removing ring, wherein the dust removing ring is sleeved at one end of the second shaft part facing the rotating cavity and one end of the connecting frame facing the second shaft part.
According to an embodiment of the utility model, the second shaft part and the connecting frame are respectively provided with a step surface, the width of the step surface on the second shaft part is larger than that of the step surface on the connecting frame, and the inner structure of the dust removing ring is matched with the step surfaces on the second shaft part and the connecting frame.
According to one embodiment of the utility model, a gland is connected to the trimmer connecting shaft, and the gland presses the diamond roller towards one end of the diamond roller.
Compared with the prior art, the grinding wheel correction device has the following advantages:
the grinding wheel correction device is connected to a machine tool for machining cycloidal pin wheels, and then the grinding wheel can be corrected in real time according to the measurement result in the machining process of the pin gear shell, so that the dimensional accuracy of internal teeth is consistent, the form and position tolerance meets the design requirement, the grinding wheel correction device is integrated into a machine tool system, the full-automatic grinding wheel correction can be implemented by a numerical control device of the machine tool according to the grinding parameter design, and the errors existing in manual operation are solved.
Drawings
FIG. 1 is a top view of a grinding wheel dressing apparatus of the present utility model;
FIG. 2 is a cross-sectional view of the grinding wheel dressing apparatus of the present utility model;
FIG. 3 is a front view of the grinding wheel dressing apparatus of the present utility model;
in the figure: 1. fixed bottom plate, 11, rotation shaft, 12, fixing bolt, 13, fixing nut, 2, connecting frame, 21, angular contact bearing, 22, adjusting screw, 23, bearing gland, 24, inner spacer, 25, outer spacer, 26, framework oil seal, 3, driving motor, 31, elastic tension sleeve, 32, locking nut, 4, diamond roller shaft, 41, first shaft, 42, second shaft, 5, trimmer connecting shaft, 51, gland, 6, diamond roller, 7 and dust removing ring
The implementation and advantages of the functions of the present utility model will be further described with reference to the accompanying drawings.
Detailed Description
Various embodiments of the utility model are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the utility model. That is, in some embodiments of the utility model, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.
It should be noted that all directional indicators (such as up, down, left and right, front and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the utility model solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
For a further understanding of the nature, features, and efficacy of the present utility model, the following examples are set forth in order to provide a further understanding of the utility model, and are intended to be described in connection with the accompanying drawings:
the utility model discloses a grinding wheel correction device, referring to fig. 1 to 3, which comprises a fixed bottom plate 1, a connecting frame 2, a driving motor 3, a diamond roller shaft 4 and a trimmer connecting shaft 5, wherein a rotating shaft 11 is arranged on the fixed bottom plate 1, and external threads are arranged on the rotating shaft 11; one end of the connecting frame 2 is in threaded connection with the rotating shaft 11, the other end of the connecting frame is connected with the fixed bottom plate 1 through the fixed bolt 12 and the fixed nut 13, a rotating cavity is formed in the connecting frame, an angular contact bearing 21 is arranged in the rotating cavity, and the first shaft part 41 is rotatably connected in the angular contact bearing 21; the driving motor 3 is connected to one end of the rotating cavity, an output shaft of the driving motor extends into the rotating cavity, and an elastic tensioning sleeve 31 is connected to the output shaft; the diamond roller shaft 4 comprises a first shaft part 41 and a second shaft part 42, wherein the first shaft part 41 is rotatably connected in the angular contact bearing 21 and is connected with an output shaft of the driving motor 3; the dresser connection shaft 5 is connected to the second shaft portion 42; the diamond roller 6 is arranged on the trimmer connecting shaft 5. The grinding wheel correction device is fixed in a dovetail groove of a machine tool through the fixed bottom plate 1, then is pressed by the pressing plate, the driving motor 3 is connected with the first shaft part 41 of the diamond roller shaft 4 and is clamped by the elastic tensioning sleeve 31, no reverse gap is ensured when the driving motor 3 is in transmission, meanwhile, the angular contact bearing 21 ensures high precision of rotation of the diamond roller shaft 4, and the speed adjustment of the diamond roller 6 is controlled by the driving motor 3. When the height of the diamond roller 6 needs to be adjusted, the fixing nut 13 is loosened, the connection between the connecting frame 2 and the fixed bottom plate 1 is disconnected, then the connecting frame 2 is rotated, the connecting frame 2 swings up and down around the rotating shaft 11 through threads on the connecting frame, the up and down adjustment of the diamond roller 6 can be realized, after the connecting frame 2 rotates to a proper position, the rotating frame 2 is stopped, then the connecting frame 2 is connected with the fixed bottom plate 1 through the fixing bolt 12 and the fixing nut 13, the driving motor 3 is started after the adjustment is finished, the diamond roller shaft 4 rotates along with the output shaft of the driving motor 3 and drives the trimmer connecting shaft 5 to rotate, the diamond roller 6 starts to rotate, and the profile of the grinding wheel is corrected by means of the molding profile of the diamond roller 6; after being connected to the lathe of processing cycloidal pin gear, the emery wheel can carry out real-time correction according to measuring result in the pin gear shell course of working, has guaranteed that internal tooth size precision is unanimous, makes form and position tolerance satisfy the designing requirement, incorporates the emery wheel correction device into the lathe system, can be according to grinding parameter design, carries out full-automatic emery wheel correction by lathe itself numerical control device, solves the error that the manual operation exists.
Referring to fig. 1 to 3, in the grinding wheel correction device of the present utility model, an adjusting screw 22 is provided on a connection frame 2, and after a fixing nut 13 is loosened, the connection frame 2 swings up and down around a rotation shaft 11 by rotating the adjusting screw 22 through a thread thereon. When the height of the diamond roller 6 needs to be adjusted, the fixing nut 13 is loosened, the connection between the connecting frame 2 and the fixed bottom plate 1 is disconnected, then the adjusting screw 22 is rotated, the connecting frame 2 swings up and down around the rotating shaft 11 through the threads on the adjusting screw, the up and down adjustment of the diamond roller 6 can be realized, after the connecting frame 2 rotates to a proper position, the rotating adjusting screw 22 is stopped, and then the connecting frame 2 and the fixed bottom plate 1 are connected through the fixing bolt 12 and the fixing nut 13.
Referring to fig. 2, in the grinding wheel correction device of the present utility model, a bearing cover 23 is disposed at one end of a rotation cavity facing a driving motor 3, the driving motor 3 is fixedly connected to the bearing cover 23, and an output shaft of the driving motor 3 is connected to a first shaft portion 41 of a diamond roller shaft 4 through a lock nut 32. After the first shaft part 41 of the diamond roller shaft 4 is placed in the rotating cavity, the first shaft part 41 extends out of the rotating cavity towards one end of the driving motor 3 and extends into the bearing cover 23, the bearing cover 23 extends into the rotating cavity towards one end of the rotating cavity to pretighten the outer ring of the angle contact bearing 21, and when the locking nut 32 connects the output shaft of the driving motor 3 with the first shaft part 41 of the diamond roller shaft 4, the first shaft part 41 presses the elastic tensioning sleeve 31 to pretighten the inner ring of the angle contact bearing 21.
Referring to fig. 2, in the grinding wheel correction device of the present utility model, two angular contact bearings 21 are provided, an inner spacer 24 and an outer spacer 25 are disposed in the rotation cavity and located between the two angular contact bearings 21, and the inner spacer 24 is sleeved on a portion of the first shaft 41 located between the two sets of angular contact bearings 21. In operation of the grinding wheel correction device, the lubricating oil in the two angular contact bearings 21 can only flow between the inner spacer 24 and the outer spacer 25.
Referring to fig. 2, in the grinding wheel correction device of the present utility model, a skeleton oil seal 26 is disposed at one end of the rotation cavity away from the driving motor 3, and the skeleton oil seal 26 is disposed between the connection frames 2. During the rotation of the diamond roller shaft 4 around the angular contact bearing 21, the lubricating oil in the rotation chamber cannot flow out of the rotation chamber.
Referring to fig. 1 and 2, the grinding wheel correction device of the present utility model further includes a dust removing ring 7, where the dust removing ring 7 is sleeved at one end of the second shaft portion 42 facing the rotating cavity and one end of the connecting frame 2 facing the second shaft portion 42. The dust removal ring 7 can prevent external dust from entering the rotating cavity to influence the rotation of the diamond roller shaft 4 around the angular contact bearing 21.
Referring to fig. 2, in the grinding wheel correction device of the present utility model, step surfaces are respectively disposed on the second shaft portion 42 and the connecting frame 2, the width of the step surface on the second shaft portion 42 is greater than the width of the step surface on the connecting frame 2, and the inner structure of the dust removing ring 7 is adapted to the step surfaces on the second shaft portion 42 and the connecting frame 2. The width of the step surface on the second shaft portion 42 is larger than that on the connecting frame 2, after the dust removing ring 7 is installed, the end surface of the part where the dust removing ring 7 is matched with the second shaft portion 42 is extruded onto the end surface of the connecting frame 2 facing one end of the second shaft portion 42, the part where the dust removing ring 7 is matched with the connecting frame 2 is pressed on the step surface of the connecting frame 2, when the second shaft portion 42 rotates, the dust removing ring 7 rotates along with the second shaft portion 42, the dust removing ring 7 dry rubs with the connecting frame 2, and dust on the surface where the connecting frame 2 contacts with the dust removing ring is removed.
Referring to fig. 1 and 2, in the grinding wheel correction device of the present utility model, a pressing cover 51 is connected to a dresser connecting shaft 5, and the pressing cover 51 presses the diamond roller 6 toward one end of the diamond roller 6.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the utility model.
Claims (8)
1. A grinding wheel dressing apparatus, comprising:
a rotating shaft (11) is arranged on the fixed bottom plate (1), and external threads are arranged on the rotating shaft (11);
one end of the connecting frame (2) is in threaded connection with the rotating shaft (11), the other end of the connecting frame is connected with the fixed bottom plate (1) through a fixed bolt (12) and a fixed nut (13), a rotating cavity is formed in the connecting frame, and an angular contact bearing (21) is arranged in the rotating cavity;
the driving motor (3) is connected to one end of the rotating cavity, an output shaft of the driving motor extends into the rotating cavity, and an elastic tensioning sleeve (31) is connected to the output shaft;
a diamond roller shaft (4) comprising a first shaft portion (41) and a second shaft portion (42), wherein the first shaft portion (41) is rotatably connected in the angular contact bearing (21) and is connected with an output shaft of the driving motor (3);
a dresser connection shaft (5) connected to the second shaft portion (42);
and the diamond roller (6) is arranged on the trimmer connecting shaft (5).
2. Grinding wheel correction device according to claim 1, characterized in that the connecting frame (2) is provided with an adjusting screw (22), and after the fixing nut (13) is loosened, the connecting frame (2) swings up and down around the rotating shaft (11) by rotating the adjusting screw (22) through the threads thereon.
3. Grinding wheel correction device according to claim 1, characterized in that the end of the rotation cavity facing the driving motor (3) is provided with a bearing cover (23), the driving motor (3) is fixedly connected with the bearing cover (23), and the output shaft of the driving motor (3) is connected with the first shaft part (41) of the diamond roller shaft (4) through a lock nut (32).
4. Grinding wheel correction device according to claim 1, characterized in that the number of angular contact bearings (21) is two, an inner spacer (24) and an outer spacer (25) are arranged in the rotation cavity between the two angular contact bearings (21), and the inner spacer (24) is sleeved on the portion of the first shaft portion (41) between the two sets of angular contact bearings (21).
5. Grinding wheel correction device according to claim 1, characterized in that the end of the rotation chamber remote from the drive motor (3) is provided with a skeleton oil seal (26), the skeleton oil seal (26) being arranged between the connection frames (2).
6. The grinding wheel correction device according to claim 1, further comprising a dust removing ring (7), wherein the dust removing ring (7) is sleeved at one end of the second shaft portion (42) facing the rotating cavity and one end of the connecting frame (2) facing the second shaft portion (42).
7. The grinding wheel correction device according to claim 6, characterized in that step surfaces are arranged on the second shaft part (42) and the connecting frame (2), the width of the step surface on the second shaft part (42) is larger than that of the step surface on the connecting frame (2), and the inner structure of the dust removing ring (7) is matched with the step surfaces on the second shaft part (42) and the connecting frame (2).
8. Grinding wheel dressing device according to claim 1, characterized in that the dresser connecting shaft (5) is connected with a gland (51), the gland (51) pressing the diamond roller (6) towards one end of the diamond roller (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321126216.3U CN219725818U (en) | 2023-05-11 | 2023-05-11 | Grinding wheel correction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321126216.3U CN219725818U (en) | 2023-05-11 | 2023-05-11 | Grinding wheel correction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219725818U true CN219725818U (en) | 2023-09-22 |
Family
ID=88060086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321126216.3U Active CN219725818U (en) | 2023-05-11 | 2023-05-11 | Grinding wheel correction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219725818U (en) |
-
2023
- 2023-05-11 CN CN202321126216.3U patent/CN219725818U/en active Active
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