CN217619487U - Precision feeding device for guide wheel dresser of centerless grinding machine - Google Patents
Precision feeding device for guide wheel dresser of centerless grinding machine Download PDFInfo
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- CN217619487U CN217619487U CN202221322357.8U CN202221322357U CN217619487U CN 217619487 U CN217619487 U CN 217619487U CN 202221322357 U CN202221322357 U CN 202221322357U CN 217619487 U CN217619487 U CN 217619487U
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- feeding device
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Abstract
The utility model provides a precision feeding device for a guide wheel dresser of a centerless grinding machine, which comprises a base, wherein a pair of linear guide rails is arranged on the base; a sliding plate is slidably arranged through the linear guide rail; a ball screw is arranged in parallel to the linear guide rail, and a screw nut matched with the ball screw in a threaded manner is fixed on one side of the sliding plate; the other side of the sliding plate is connected with a trimming shaft parallel to the linear guide rail; a power device for driving the ball screw to rotate is arranged on one side of the base, and a limiting shaft hole is formed in the other side of the base; one end of the trimming shaft penetrates through the limiting shaft hole and is fixedly connected with a guide wheel trimmer. The utility model discloses an accurate control of servo motor, through the accurate transmission of interference fit's synchronous sprocket structure to turn into linear motion and ball with rotary motion through ball and possess high accuracy, reversibility and efficient characteristics, greatly improved the precision and the sensitivity that emery wheel dresser fed.
Description
Technical Field
The utility model relates to a mechanical equipment correlation technique field relates to centerless grinder guide pulley dresser, especially a centerless grinder guide pulley dresser precision feeding device.
Background
The centerless grinding is the grinding of an indefinite rotation center of a workpiece, and comprises centerless external grinding and centerless internal grinding, wherein a cylindrical surface, a conical surface and the internal and external surfaces of a revolving body workpiece can be ground, the workpiece is supported on a guide wheel and a supporting plate, the axis of the guide wheel inclines at a small angle with the axis of a grinding wheel in a vertical plane, the guide wheel is in a cylinder shape, when the grinding angle of the guide wheel is adjusted, the contact point of the guide wheel and the grinding wheel is only at one point, in order to increase the contact surface of the workpiece, the guide wheel and the grinding wheel, the shape of the guide wheel needs to be corrected, and a guide wheel trimmer can correct the shape of the guide wheel in the grinding process.
At present, the feeding mechanism of the guide wheel dresser of the domestic centerless grinding machine is mainly of a sleeve type structure, has a compact structure, but has large feeding resistance and poor sensitivity. Thus, the precision of the centerless grinder cannot meet the requirements of machine tools under the continuous development of high precision and numerical control.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a precision feeding device for a centerless grinding machine guide wheel dresser.
In order to achieve the above object, the utility model provides a precision feeding device for a centerless grinder guide wheel dresser, which comprises a base, wherein a pair of linear guide rails is arranged on the base; a sliding plate is slidably mounted through the linear guide rail; a ball screw is arranged in parallel to the linear guide rail, and a screw nut matched with the ball screw in a threaded manner is fixed on one side of the sliding plate; the other side of the sliding plate is connected with a trimming shaft parallel to the linear guide rail; one side of the base is provided with a power device for driving the ball screw to rotate, and the other side of the base is provided with a limiting shaft hole; one end of the trimming shaft penetrates through the limiting shaft hole and is fixedly connected with a guide wheel trimmer.
As the utility model discloses an it sets up to prefer, ball, trimming shaft all are located two linear guide's intermediate position.
As the preferable arrangement of the utility model, a bearing seat is arranged on one side of the base far away from the trimming shaft; the ball screw is provided with a pair of angular contact bearings and locked by nuts, and the outer ring of each angular contact bearing is fixed in the bearing seat and is pressed and fixed by a gland.
As the utility model discloses an optimal setting, the trimming shaft is connected through a plurality of fastening bolts that run through the slide up end and imbed in the trimming shaft outer peripheral face with the slide.
As a preferred arrangement of the present invention, the power device comprises a housing and a servo motor mounted on the housing, wherein the output shafts of the ball screw and the servo motor both penetrate through the inside of the housing and are respectively connected with a first synchronous sprocket and a second synchronous sprocket; the first synchronous chain wheel is connected with the second synchronous chain wheel through a transmission chain.
As the utility model discloses a preferred setting, be provided with first tensioning cover between ball and the first synchronous sprocket, first tensioning cover inner circle and ball periphery interference fit, the outer lane with circumference interference fit in the first synchronous sprocket.
As the utility model discloses an it sets up to prefer, be provided with the tensioning sleeve of second between servo motor's output shaft and the synchronous sprocket of second, tensioning sleeve inner circle and motor shaft periphery interference fit, the outer lane with circumference interference fit in the synchronous sprocket of second.
As an optimal arrangement of the present invention, the diameter of the first timing sprocket is larger than the diameter of the second timing sprocket.
As the utility model discloses an optimal setting, the slide both sides with be provided with the organ protection casing between the base respectively.
The utility model has the advantages that:
the utility model provides a centerless grinder guide pulley dresser precision feeding device, servo motor pass through the static friction power that the second tensioning sleeve produced, and it is rotatory to drive the synchronous sprocket of second, and it is rotatory to drive first synchronous sprocket through the transmission of transmission chain tooth to the friction power that produces through first tensioning sleeve drives the ball and rotates and drive screw nut rectilinear movement, simultaneously, also at equidirectional rectilinear movement with the slide of screw nut rigid coupling and fix the trimming shaft on the slide. The utility model discloses an accurate control of servo motor, through the accurate transmission of interference fit's synchronous sprocket structure to turn into linear motion and ball with rotary motion through ball and possess high accuracy, reversibility and efficient characteristics, greatly improved the precision and the sensitivity that emery wheel dresser fed.
Drawings
Fig. 1 is a front view of a precision feeding device for a centerless grinder guide wheel dresser provided by the present invention;
fig. 2 is a side view of a centerless grinder guide wheel dresser precision feeding apparatus provided by the present invention;
fig. 3 is a top view of the precision feeding device for a centerless grinder guide wheel dresser provided by the present invention;
FIG. 4 isbase:Sub>A cross-sectional view A-A of FIG. 1;
FIG. 5 is a view in the direction D of FIG. 2;
fig. 6 is a cross-sectional view of C-C of fig. 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 6, the present invention provides a precision feeding device for a centerless grinder guide wheel dresser, which includes a base 15, wherein a pair of linear guide rails 18 is arranged on the base 15; a sliding plate 13 is slidably mounted through the linear guide rail 18; a ball screw 12 is installed parallel to the linear guide rail 18, and a screw nut 19 which is in threaded fit with the ball screw 12 is fixed on one side of the sliding plate 13; the other side of the sliding plate 13 is connected with a trimming shaft 16 parallel to the linear guide rail 18; a power device for driving the ball screw 12 to rotate is arranged on one side of the base 15, and a limiting shaft hole is formed in the other side of the base; one end of the trimming shaft 16 penetrates through the limiting shaft hole and is fixedly connected with a guide wheel trimmer 17.
As a preferable configuration of the embodiment of the present invention, further, the ball screw 12 and the trimming shaft 16 are both located at the middle position of the linear guide 18.
As a preferable arrangement of the embodiment of the present invention, further, a bearing seat 10 is disposed on one side of the base 15 away from the trimming shaft 16; the ball screw 12 is provided with a pair of angular contact bearings 11 and locked by nuts 8, and the outer rings of the angular contact bearings 11 are fixed in the bearing seats 10 and pressed and fixed by a gland 9.
As a preferable configuration of the embodiment of the present invention, further, the trimming shaft 16 is connected to the sliding plate 13 through a plurality of fastening bolts 14 penetrating through the upper end surface of the sliding plate 13 and embedded in the outer peripheral surface of the trimming shaft 16.
As a preferable configuration of the embodiment of the present invention, further, the power device includes a housing 7 and a servo motor 1 mounted on the housing 7, and the output shafts of the ball screw 12 and the servo motor 1 both penetrate through the inside of the housing 7 and are respectively connected to the first synchronous sprocket 6 and the second synchronous sprocket 2; the first synchronous chain wheel 6 is connected with the second synchronous chain wheel 2 through a transmission chain 4.
As the utility model discloses preferred setting, furtherly, be provided with first tensioning cover 5 between ball 12 and the first synchronous sprocket 6, 5 inner circles of first tensioning cover and the interference fit of ball 12 periphery, the outer lane with the interference fit of circle in the first synchronous sprocket 6.
As the utility model discloses the preferred setting of embodiment, furtherly, be provided with second tensioning cover 3 between servo motor 1's output shaft and the synchronous sprocket 2 of second, 3 inner circles of second tensioning cover and motor shaft periphery interference fit, the outer lane with 2 interior circumference interference fit of synchronous sprocket of second.
As a preferable configuration of the embodiment of the present invention, further, the diameter of the first timing sprocket 6 is larger than the diameter of the second timing sprocket 2.
As a preferable arrangement of the embodiment of the present invention, further, the two sides of the sliding plate 13 and the base 15 are respectively provided with an organ protection cover 20 therebetween.
The utility model discloses a theory of operation: the servo motor 1 drives the second synchronous chain wheel 2 to rotate through static friction force generated by the second tensioning sleeve 3, drives the first synchronous chain wheel 6 to rotate through transmission of the transmission chain 4 teeth, drives the ball screw 12 to rotate and drives the screw nut 19 to linearly move through friction force generated by the first tensioning sleeve 5, and meanwhile, the sliding plate 13 fixedly connected with the screw nut 19 and the trimming shaft 16 fixed on the sliding plate 13 linearly move in the same direction, so that the trimmer 17 is driven to synchronously move.
The utility model discloses an accurate control of servo motor, through the accurate transmission of interference fit's synchronous sprocket structure to turn into linear motion and ball possesses through ball with rotary motion high accuracy, reversibility and efficient characteristics, greatly improved the precision and the sensitivity that grinding wheel dresser fed.
Moreover, those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments, not other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.
Claims (9)
1. A precision feeding device of a centerless grinder guide wheel dresser comprises a base and is characterized in that a pair of linear guide rails is arranged on the base; a sliding plate is slidably arranged through the linear guide rail; a ball screw is arranged in parallel to the linear guide rail, and a screw nut matched with the ball screw in a threaded manner is fixed on one side of the sliding plate; the other side of the sliding plate is connected with a trimming shaft parallel to the linear guide rail; one side of the base is provided with a power device for driving the ball screw to rotate, and the other side of the base is provided with a limiting shaft hole; one end of the trimming shaft penetrates through the limiting shaft hole and is fixedly connected with a guide wheel trimmer.
2. The apparatus of claim 1, wherein said ball screw and said dressing shaft are located at a position intermediate said linear guides.
3. The precision feeding device for the guide wheel dresser of the centerless grinder as defined in claim 1, wherein a bearing seat is provided on a side of the base away from the dressing shaft; the ball screw is provided with a pair of angular contact bearings and locked by nuts, and the outer rings of the angular contact bearings are fixed in the bearing seats and are pressed and fixed by the pressing covers.
4. The precision feeding device for the guide wheel dresser of the centerless grinder as defined in claim 1, wherein the dressing shaft and the slide plate are connected by a plurality of fastening bolts penetrating through the upper end surface of the slide plate and embedded in the outer peripheral surface of the dressing shaft.
5. The precision feeding device for the guide wheel dresser of the centerless grinder as defined in claim 1, wherein the power device comprises a housing and a servo motor mounted on the housing, the output shafts of the ball screw and the servo motor penetrate through the inside of the housing and are respectively connected with a first synchronous sprocket and a second synchronous sprocket; the first synchronous chain wheel is connected with the second synchronous chain wheel through a transmission chain.
6. The apparatus as claimed in claim 5, wherein a first tensioning sleeve is disposed between the ball screw and the first timing sprocket, an inner ring of the first tensioning sleeve is in interference fit with an outer circumference of the ball screw, and an outer ring of the first tensioning sleeve is in interference fit with an inner circumference of the first timing sprocket.
7. The precision feeding device for the guide wheel dresser of the centerless grinder as defined in claim 5, wherein a second tensioning sleeve is arranged between the output shaft of the servo motor and the second synchronous sprocket, an inner ring of the second tensioning sleeve is in interference fit with the outer circumference of the motor shaft, and an outer ring of the second tensioning sleeve is in interference fit with the inner circumference of the second synchronous sprocket.
8. The apparatus of claim 5, wherein said first timing sprocket diameter is larger than said second timing sprocket diameter.
9. The apparatus of claim 1, wherein a plurality of bellows-type guards are disposed between the sides of the slide and the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221322357.8U CN217619487U (en) | 2022-05-30 | 2022-05-30 | Precision feeding device for guide wheel dresser of centerless grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221322357.8U CN217619487U (en) | 2022-05-30 | 2022-05-30 | Precision feeding device for guide wheel dresser of centerless grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217619487U true CN217619487U (en) | 2022-10-21 |
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ID=83620135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221322357.8U Active CN217619487U (en) | 2022-05-30 | 2022-05-30 | Precision feeding device for guide wheel dresser of centerless grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217619487U (en) |
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2022
- 2022-05-30 CN CN202221322357.8U patent/CN217619487U/en active Active
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