CN217618216U - Grinding rod mechanism for internal thread grinding - Google Patents
Grinding rod mechanism for internal thread grinding Download PDFInfo
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- CN217618216U CN217618216U CN202221245990.1U CN202221245990U CN217618216U CN 217618216 U CN217618216 U CN 217618216U CN 202221245990 U CN202221245990 U CN 202221245990U CN 217618216 U CN217618216 U CN 217618216U
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- grinding
- static pressure
- transmission shaft
- internal thread
- hinge
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Abstract
The utility model discloses a grinding pin mechanism for internal thread abrasive machining, including transmission shaft, emery wheel and the connector of connecting emery wheel and transmission shaft, the connector includes the hydrostatic pressure chamber head that links to each other with the transmission shaft and the emery wheel base member connecting axle of connecting the emery wheel, and the tip of transmission shaft is equipped with the class ball pivot, and hydrostatic pressure chamber head is equipped with the hydrostatic pressure hinge hole that links to each other with the matching of class ball pivot. This grinding pin mechanism adopts rigid transmission shaft, through rigid connector connecting drive shaft and emery wheel, set up spacing plane in the static pressure hinge hole on transmission epaxial class ball pivot and the connector respectively, through the plane contact between the spacing plane, make the transmission shaft at rotatory in-process, can drive the emery wheel rotation in order to carry out the internal screw thread processing through the drive connector, this structure accessible sets up minimum diameter's transmission shaft and realizes internal screw thread processing, thereby guarantee the holistic rigidity of mechanism better, and show and reduce the holistic cost of manufacture of mechanism, this utility model is used for the machining equipment field.
Description
Technical Field
The utility model belongs to the machining equipment field, more specifically relates to a grinding pin mechanism for internal thread abrasive machining.
Background
The machine tool is a master for manufacturing various high-precision and high-efficiency machines, and the lead screw and the nut become key parts along with the development of various high-grade moving machines (including IC equipment, feeding mechanisms of precision instruments and the like) and high-grade numerical control machines in the direction of high speed, high precision and high reliability.
With the continuous development and change of various market requirements, the styles of threaded parts such as ball screws and worms and internal thread parts such as nuts and modules are more and more. The automatic application is widely popularized at present, and the application of the lead screw and the module which need high speed, high precision and high speed and large lead is more and more extensive.
However, the grinding of large-lead internal threads is still difficult at present, particularly the grinding of small-hole large-lead internal threads. At present, elbow grinding rod mechanisms for large-lead internal thread machining are available in the market, but bearings are combined with a grinding rod around a shaft, and the diameter of the grinding rod cannot be large due to the fact that holes for internal thread grinding are small, so that the bearings of the elbow grinding rod and the shaft are very small, and small parts in the market are difficult to purchase or rely on import and are very expensive; or the bearing and the shaft which are relatively cheap can bear the rotating speed, so that the requirement of grinding the internal thread of the small hole cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a grinding pin mechanism for internal thread abrasive machining can guarantee the holistic rigidity of mechanism better, and is showing the cost of manufacture that reduces the mechanism.
According to the utility model discloses an embodiment of the first aspect provides a grinding pin mechanism for internal thread abrasive machining, including transmission shaft, emery wheel and connection the emery wheel with the connector of transmission shaft, the connector includes the hydrostatic pressure chamber head that links to each other with the transmission shaft and is connected the grinding wheel base member connecting axle of emery wheel, the transmission shaft is equipped with the grinding pin main part outward, the inner chamber cavity of grinding pin main part sets up and forms and holds easily the shaft hole of transmission shaft, the tip of transmission shaft is equipped with the type ball hinge, hydrostatic pressure chamber head be equipped with the continuous hydrostatic hinge hole of type ball hinge matching, on the type ball hinge with the inner wall of hydrostatic hinge hole all is equipped with at least one spacing plane, so that can drive when the transmission shaft is rotatory the connector is rotatory.
According to the utility model discloses a grinding pin mechanism for internal thread abrasive machining, on the class ball pivot with the inner wall of static pressure hinge hole all is equipped with three spacing plane, three the impartial angular distribution of spacing planar axis.
According to the utility model discloses an embodiment of the first aspect grinding rod mechanism for internal thread abrasive machining, it is three be connected with the spherical cambered surface between the spacing plane.
According to the utility model discloses a grinding pin mechanism for internal thread abrasive machining, the tip of grinding pin main part is equipped with and is used for holding the static pressure chamber of static pressure chamber head, the end connection of grinding pin main part has and is used for the encapsulation the static pressure lid of static pressure chamber head.
According to the utility model discloses a grind pole mechanism for internal thread abrasive machining, the static pressure lid with static pressure chamber sealing connection, be equipped with in the grinding pole main part with the shaft hole with the communicating static pressure oil duct in static pressure chamber.
According to the utility model discloses a grind pole mechanism for internal thread abrasive machining, the periphery of hydrostatic pressure chamber head with be clearance fit between the inner wall in hydrostatic pressure chamber.
According to the utility model discloses a grinding pin mechanism for internal thread abrasive machining, hydrostatic cavity head including connecting the last pyramis of emery wheel base member connecting axle and connection the lower pyramis of transmission shaft, go up the pyramis with lower pyramis is the axial symmetry setting, go up the pyramis with the axis of lower pyramis with the coaxial setting of axis of emery wheel base member connecting axle.
According to the utility model discloses a grind bar mechanism for internal thread abrasive machining, the inner chamber in static pressure chamber with the profile phase-match in lower pyramis, the lower terminal surface of static pressure lid with go up the profile phase-match in pyramis.
According to the utility model discloses a grinding pin mechanism for internal thread abrasive machining, connect in the grinding pin main part the outer terminal surface of static pressure lid with the static pressure lid all inclines to set up, the outer terminal surface of grinding pin main part with the sectional inclination of static pressure lid equals the internal screw thread lead angle of waiting to process promptly.
According to the utility model discloses a grind bar mechanism for internal thread abrasive machining, the length of class ball pivot is less than the degree of depth of static pressure hinge hole, so that class ball pivot can be followed static pressure hinge hole slides in order to mate the connector that is used for processing different lead angles.
The utility model discloses a technical scheme has following advantage or one of beneficial effect at least among the above-mentioned technical scheme:
this a grinding pin mechanism for internal thread abrasive machining adopts rigid transmission shaft, through rigid connector connection transmission shaft and emery wheel, set up spacing plane in the static pressure hinge hole on epaxial class ball pivot of transmission and the connector respectively, through the plane contact between the spacing plane, make the transmission shaft at rotatory in-process, can drive the emery wheel rotation through the drive connector in order to carry out the internal screw thread processing, the internal screw thread processing is realized to the transmission shaft that this structure accessible set up minimum diameter, thereby guarantee the holistic rigidity of mechanism better, and show the holistic cost of manufacture of reduction mechanism.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples;
FIG. 1 is a schematic sectional view of the overall structure of a grinding rod mechanism according to an embodiment of the present invention;
fig. 2 is a detailed schematic view of a connection structure of a transmission shaft and a connector in an embodiment of the present invention;
fig. 3 is a schematic sectional view of a portion of a connecting structure of a transmission shaft and a connector according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of meanings are one or more, a plurality of meanings are two or more, and the terms greater than, smaller than, exceeding, etc. are understood as excluding the number, and the terms greater than, lower than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more features.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, and may be, for example, a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; may be mechanically, electrically or otherwise in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other elements or indirectly connected through one or more other elements or in an interactive relationship between two elements.
The following disclosure provides many different embodiments or examples for implementing different aspects of the invention.
Referring to fig. 1 to 3, a grinding rod mechanism for grinding internal threads is provided, which includes a transmission shaft 10, a grinding wheel 20, and a connector 30 connecting the grinding wheel 20 and the transmission shaft 10, where the connector 30 includes a static pressure cavity head 31 connected to the transmission shaft 10 and a grinding wheel base connecting shaft 32 connected to the grinding wheel 20, a grinding rod main body 40 is provided outside the transmission shaft 10, an inner cavity of the grinding rod main body 40 is hollow to form a shaft hole for easily accommodating the transmission shaft 10, a ball-like hinge 11 is provided at an end of the transmission shaft 10, the static pressure cavity head 31 is provided with a static pressure hinge hole 313 connected to the ball-like hinge 11 in a matching manner, and at least one limit plane 12 is provided on each of the ball-like hinge 11 and an inner wall of the static pressure hinge hole 313, so that the transmission shaft 10 can drive the connector 30 to rotate when rotating.
This a grinding pin mechanism for internal thread abrasive machining adopts rigid transmission shaft 10, connect transmission shaft 10 and emery wheel 20 through rigid connector 30, set up spacing plane 12 in class ball pivot 11 on transmission shaft 10 and the static pressure hinge hole 313 on the connector 30 respectively, through the plane contact between the spacing plane 12, make transmission shaft 10 at rotatory in-process, can drive emery wheel 20 rotation through drive connector 30 and carry out the processing of internal thread, the processing of internal thread is realized to the transmission shaft 10 that this structure accessible set up minimum diameter, thereby guarantee the holistic rigidity of mechanism better, and show the holistic cost of manufacture of reduction mechanism.
In some embodiments of the present invention, the ball-like hinge 11 and the inner wall of the static pressure hinge hole 313 are provided with three limiting planes 12, and the axes of the three limiting planes 12 are distributed equally.
In some embodiments of the present invention, a spherical surface is connected between the three limiting planes 12.
The end of the transmission shaft 10 is connected with the connector 30 through a ball-like hinge 11 and a ball-like static pressure hinge hole 313, three limiting planes 12 are arranged on the ball hinge and on the inner wall of the static pressure hinge hole 313, the axes of the three limiting planes 12 are arranged at intervals of 120 degrees, each limiting plane 12 is connected through a spherical arc surface, the three spherical arc surfaces are connected, the rotation of the ball-like hinge 11 at the end of the transmission shaft 10 in the static pressure hinge hole 313 in the connector 30 can be guaranteed, the connection and installation between the ball-like hinge 11 and the connector 30 are convenient, and the adjustment of angle rotation is carried out in the installation process.
The three limiting planes 12 can ensure that more contact planes exist between the ball-like hinge 11 and the static pressure hinge hole 313 of the connector 30 during the rotation of the transmission shaft 10, so as to ensure the rigidity of the rotation connection and ensure the accuracy of internal thread machining.
In some embodiments of the present invention, the end of the grinding rod main body 40 is provided with a static pressure chamber for accommodating the static pressure chamber head 31, and the end of the grinding rod main body 40 is connected with a static pressure cover 50 for packaging the static pressure chamber head 31.
In some embodiments of the present invention, the static pressure cover 50 is connected to the static pressure chamber in a sealing manner, and the grinding rod main body 40 is provided with a static pressure oil passage 41 communicated with the shaft hole and the static pressure chamber.
The grinding rod main body 40 is formed with a shaft hole for accommodating the transmission shaft 10, and is provided with a static pressure oil duct 41 communicated with the shaft hole, oil is injected into the static pressure oil duct 41 of the grinding rod main body 40, and the oil enters a gap between the shaft hole and the transmission shaft 10 through the static pressure oil duct 41 and enters a static pressure cavity at the front end through the shaft hole, so that lubrication can be formed between the transmission shaft 10 and the shaft hole. Meanwhile, the end part of the shaft hole is hermetically installed through the static pressure cover 50, so that the static pressure oil passage 41, the shaft hole and the static pressure cavity at the front end form a sealed static pressure structure, and the transmission shaft 10 can be ensured to stably rotate at high speed for a long time in the process of machining the internal thread.
In some embodiments, the outer periphery of the head 31 of the static pressure chamber is in clearance fit with the inner wall of the static pressure chamber.
The static pressure cavity head 31 is accommodated in the static pressure cavity at the end part of the transmission shaft 10, and the periphery of the static pressure cavity head 31 is in clearance fit with the static pressure cavity, so that the ball-like hinge 11 and the static pressure cavity head 31 which are in rigid connection can stably rotate at high speed for a long time to process internal threads.
In some embodiments of the present invention, the static pressure chamber head 31 includes an upper cone 311 connected to the grinding wheel base connecting shaft 32 and a lower cone 312 connected to the transmission shaft 10, the upper cone 311 and the lower cone 312 are both axisymmetric, and the axes of the upper cone 311 and the lower cone 312 are coaxial with the axis of the grinding wheel base connecting shaft 32.
In some embodiments, the inner cavity of the static pressure chamber matches with the contour of the lower cone 312, and the lower end surface of the static pressure cover 50 matches with the contour of the upper cone 311.
The static pressure cavity head 31 is provided with an upper cone part 311 and a lower cone part 312, the outlines of the upper cone part 311 and the lower cone part 312 are symmetrically arranged, a static pressure hinge hole 313 is arranged in the lower cone part 312 to realize connection with the ball-like hinge 11, and the outline of the upper cone part 311 is matched with the inner side of the static pressure cover 50, so that the structure can facilitate the installation of the static pressure cavity head 31. Meanwhile, the axes of the upper cone 311, the lower cone 312 and the grinding wheel base body connecting shaft 32 are overlapped and are placed in the static pressure cavity, so that the stability in the whole rotating process can be maintained.
In some embodiments of the present invention, the outer end surface of the grinding rod main body 40 connected to the static pressure cover 50 and the static pressure cover 50 are inclined, and the inclination angle of the outer end surface of the grinding rod main body 40 and the inclination angle of the static pressure cover 50 are equal to the lead angle of the internal thread to be processed.
In some embodiments, the length of the ball-like hinge 11 is less than the depth of the static pressure hinge hole 313, so that the ball-like hinge 11 can slide along the static pressure hinge hole 313 to match the connector 30 for processing different lead angles.
In this grinding pin mechanism, the static pressure cover 50 and the outer end face of the grinding pin main body 40 for connecting and mounting the static pressure cover 50 are arranged obliquely, the obliquely arranged static pressure cover 50 facilitates the oblique mounting of the connector 30 and the grinding wheel 20, and the inclination angle of the static pressure cover 50 and the outer end face of the grinding pin main body 40 is the lead angle of the internal thread to be processed. The arrangement of this configuration provides the connector 30 with greater versatility and the connector 30 can be interchangeably used to mount grinding rods having different outer end face inclinations when used in machining internal threads of different lead angles.
In this grinding pin mechanism, transmission shaft 10 adopts the setting of rigidity axle, and the accessible sets up transmission shaft 10 and grinding pin for the demand that minimum diameter size satisfied internal thread processing, and the structure of connecting around axle and bearing relatively, and its processing degree of difficulty and processing cost are all lower.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a grinding pin mechanism for internal thread abrasive machining, its characterized in that, includes grinding pin main part, transmission shaft, emery wheel and connection the emery wheel with the connector of transmission shaft, the connector includes the hydrostatic pressure chamber head portion that links to each other with the transmission shaft and is connected the emery wheel base member connecting axle of emery wheel, the transmission shaft is equipped with the grinding pin main part outward, the inner chamber cavity of grinding pin main part sets up and forms and holds easily the shaft hole of transmission shaft, the tip of transmission shaft is equipped with the ball-like hinge, hydrostatic pressure chamber head portion be equipped with the continuous hydrostatic hinge hole is matchd to the ball-like hinge, on the ball-like hinge with the inner wall of hydrostatic hinge hole all is equipped with at least one spacing plane, so that can drive when the transmission shaft is rotatory the connector is rotatory.
2. The grinding pin mechanism for internal thread grinding work according to claim 1, wherein: the inner walls of the ball-like hinges and the inner walls of the static pressure hinge holes are provided with three limiting planes, and the axes of the three limiting planes are distributed at equal angles.
3. The grinding pin mechanism for internal thread grinding machining according to claim 2, wherein: a spherical cambered surface is connected between the three limiting planes.
4. The grinding pin mechanism for internal thread grinding work according to any one of claims 1 to 3, wherein: the end part of the grinding rod main body is provided with a static pressure cavity for accommodating the head part of the static pressure cavity, and the end part of the grinding rod main body is connected with a static pressure cover for packaging the head part of the static pressure cavity.
5. The grinding pin mechanism for internal thread grinding machining according to claim 4, wherein: the static pressure cover is connected with the static pressure cavity in a sealing mode, and the grinding rod main body is provided with a static pressure oil duct communicated with the shaft hole and the static pressure cavity.
6. The grinding pin mechanism for internal thread grinding machining according to claim 5, wherein: the periphery of the head of the static pressure cavity is in clearance fit with the inner wall of the static pressure cavity.
7. The grinding pin mechanism for internal thread grinding machining according to claim 5, wherein: the static pressure cavity head comprises an upper cone part and a lower cone part, the upper cone part is connected with the grinding wheel base body connecting shaft, the lower cone part is connected with the transmission shaft, the upper cone part and the lower cone part are arranged in an axisymmetric mode, and the axis of the upper cone part and the axis of the lower cone part are coaxial with the axis of the grinding wheel base body connecting shaft.
8. The grinding pin mechanism for internal thread grinding machining according to claim 7, wherein: the inner cavity of the static pressure cavity is matched with the outline of the lower conical part, and the lower end surface of the static pressure cover is matched with the outline of the upper conical part.
9. The grinding pin mechanism for internal thread grinding machining according to claim 7, wherein: the outer end face of the grinding rod main body connected with the static pressure cover and the static pressure cover are arranged obliquely, and the inclination angle of the outer end face of the grinding rod main body and the section of the static pressure cover is equal to the lead angle of an internal thread to be processed.
10. The grinding pin mechanism for internal thread grinding machining according to claim 9, wherein: the length of the ball-like hinge is smaller than the depth of the static pressure hinge hole, so that the ball-like hinge can slide along the static pressure hinge hole to match connectors for machining different thread lead angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221245990.1U CN217618216U (en) | 2022-05-19 | 2022-05-19 | Grinding rod mechanism for internal thread grinding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221245990.1U CN217618216U (en) | 2022-05-19 | 2022-05-19 | Grinding rod mechanism for internal thread grinding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217618216U true CN217618216U (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221245990.1U Withdrawn - After Issue CN217618216U (en) | 2022-05-19 | 2022-05-19 | Grinding rod mechanism for internal thread grinding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217618216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769748A (en) * | 2022-05-19 | 2022-07-22 | 广州市敏嘉制造技术有限公司 | Grinding rod mechanism for grinding internal thread |
-
2022
- 2022-05-19 CN CN202221245990.1U patent/CN217618216U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769748A (en) * | 2022-05-19 | 2022-07-22 | 广州市敏嘉制造技术有限公司 | Grinding rod mechanism for grinding internal thread |
| CN114769748B (en) * | 2022-05-19 | 2023-08-25 | 广州市敏嘉制造技术有限公司 | Grinding rod mechanism for internal thread grinding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20221021 Effective date of abandoning: 20230825 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20221021 Effective date of abandoning: 20230825 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |