CN216666272U - Tension connecting device for main shaft - Google Patents
Tension connecting device for main shaft Download PDFInfo
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- CN216666272U CN216666272U CN202122290436.7U CN202122290436U CN216666272U CN 216666272 U CN216666272 U CN 216666272U CN 202122290436 U CN202122290436 U CN 202122290436U CN 216666272 U CN216666272 U CN 216666272U
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- shaft body
- spring sleeve
- grinding wheel
- side wall
- wheel flange
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Abstract
The utility model discloses a tension connecting device for a main shaft, which comprises a pressing plate, a grinding wheel flange plate and a spring sleeve, wherein the main shaft comprises a first shaft body and a second shaft body which are connected, the first shaft body is positioned at the outer end of the main shaft, the diameter of the first shaft body is smaller than that of the second shaft body, the spring sleeve and the grinding wheel flange plate are sleeved on the first shaft body, the spring sleeve is positioned between the first shaft body and the grinding wheel flange plate, and the pressing plate is in threaded fit with the first shaft body through a bolt piece and can press the spring sleeve and the grinding wheel flange plate to be abutted against the second shaft body; the outer side wall of the spring sleeve is in conical surface fit with the inner side wall of the grinding wheel flange plate, and the diameter of the outer side wall of the spring sleeve is gradually reduced from back to front; the technical scheme can quickly and effectively solve the current failure fault and has the advantages of simple structure, high positioning precision and convenience in processing and assembling.
Description
Technical Field
The utility model relates to the technical field of machine tool connection, in particular to a tensioning connection device for a main shaft.
Background
At present, the installation part of a tension connecting device for a main shaft is limited by the size of a structural space, a main shaft of a grinding head is generally set to be an expandable mandrel centering structure, then liquid is controlled by adjusting an adjusting screw on the end face of the main shaft of the grinding head, and then the inner hole of a flange plate of a grinding wheel is expanded and loosened by expansion and contraction generated by the excircle of the main shaft.
However, due to long-term use and frequent replacement of the grinding wheel, the main shaft of the grinding head is worn to different degrees, and particularly when the main shaft of the grinding head and the flange of the grinding wheel cannot be expanded, the machine tool is particularly troublesome to maintain, and production is seriously affected.
Disclosure of Invention
In order to solve the above problems, the present invention provides a tension coupling device for a spindle, which overcomes the disadvantages of the prior art, can quickly and effectively solve the current failure problem, and has the advantages of simple structure, high positioning accuracy and convenient processing and assembly.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a tension connecting device for a main shaft comprises a pressing plate, a grinding wheel flange plate and a spring sleeve, wherein the main shaft comprises a first shaft body and a second shaft body which are connected, the first shaft body is positioned at the outer end of the main shaft, the diameter of the first shaft body is smaller than that of the second shaft body, the spring sleeve and the grinding wheel flange plate are sleeved on the first shaft body, the spring sleeve is positioned between the first shaft body and the grinding wheel flange plate, and the pressing plate is in threaded fit with the first shaft body through a bolt piece and can press the spring sleeve and the grinding wheel flange plate to abut against the second shaft body;
the outer side wall of the spring sleeve is in conical surface fit with the inner side wall of the grinding wheel flange plate, and the diameter of the outer side wall of the spring sleeve is gradually reduced from back to front.
Preferably, the taper of the outer side wall of the spring housing is between 1:20 and 1: 5.
Preferably, the length of the spring sleeve in the front-back direction is a, and the length of the grinding wheel flange in the front-back direction is b, wherein 0mm < b-a <4 mm.
Preferably, the coaxiality of the outer side wall and the inner side wall of the spring sleeve reaches at least 0.008 mm.
Preferably, the outer side wall of the spring sleeve is provided with a plurality of straight grooves in the front-back direction, the straight grooves are uniformly distributed on the outer side wall of the spring sleeve in a circumferential manner, and the width range of the straight grooves is 0.5-1.5 mm; the width of the straight groove is preferably 1 mm.
Preferably, the straight grooves comprise a first straight groove and a plurality of second straight grooves, the two ends of the first straight groove are both open ends, the two ends of the second straight groove are respectively an open end and a closed end, the open end of the second straight groove is located on the front end face of the spring sleeve, and the distance between the closed end of the second straight groove and the rear end face of the spring sleeve is not more than 1 cm.
Preferably, the pressing plate includes a third shaft and a fourth shaft integrally formed, the fourth shaft is located at the front side of the third shaft, the diameter of the fourth shaft is smaller than that of the third shaft,
the inner side wall of the spring sleeve is provided with a step surface, the step surface is close to the rear end face of the spring sleeve, the fourth shaft body abuts against the step surface, and the third shaft body abuts against the grinding wheel flange plate.
Preferably, the grinding wheel is further provided with a gasket, the gasket is sleeved on the fourth shaft body, and the gasket is located between the third shaft body and the grinding wheel flange.
Preferably, a gasket is further provided, and the gasket is positioned between the pressing plate and the grinding wheel flange.
The utility model has the beneficial effects that: the clamp plate is at the in-process of installing at first axis body through screwing up bolt spare, can compress tightly the spring housing to and then realize the axial fixity to the spring housing with the second shaft body is supporting, and form conical surface cooperation between the lateral wall of spring housing and the inside wall of emery wheel ring flange and can realize realizing the axial fixity to the emery wheel ring flange, and the spring housing is pressed the in-process that warp simultaneously, and the clamp plate really connects to the rising of emery wheel ring flange to the transformation of the produced normal stress deformation of spring housing, and then plays the effect to emery wheel ring flange radial fixity.
Drawings
FIG. 1 is a schematic view of a tension coupling device of the present invention;
FIG. 2 is a schematic view of the spindle of the present invention;
FIG. 3 is a schematic view of a grinding wheel flange of the present invention;
fig. 4 is a schematic view of a spring case of the present invention.
Description of reference numerals: 1. pressing a plate; 2. a grinding wheel flange plate; 3. a spring housing; 40. a first shaft body; 41. a second shaft body; 5. a bolt member; 30. a step surface.
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 drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
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 implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The first embodiment is as follows:
as shown in fig. 1, the tension coupling device for the spindle includes a pressure plate 1, a grinding wheel flange 2 as shown in fig. 3, and a spring sleeve 3 as shown in fig. 4, as shown in fig. 2, the spindle includes a first shaft body 40 and a second shaft body 41 connected to each other, the first shaft body 40 is located at an outer end of the spindle, a diameter of the first shaft body 40 is smaller than a diameter of the second shaft body 41, the spring sleeve 3 and the grinding wheel flange 2 are sleeved on the first shaft body 40, the spring sleeve 3 is located between the first shaft body 40 and the grinding wheel flange 2, the pressure plate 1 is in threaded fit with the first shaft body 40 through a bolt 5 and can press the spring sleeve 3 and the grinding wheel flange 2 against the second shaft body 41;
the outer side wall of the spring sleeve 3 is in conical surface fit with the inner side wall of the grinding wheel flange plate 2, and the diameter of the outer side wall of the spring sleeve 3 is gradually reduced from back to front.
Thus, in the process that the pressing plate 1 is installed on the first shaft body 40 by screwing the bolt piece 5, the spring sleeve 3 can be pressed to abut against the second shaft body 41 to axially fix the spring sleeve 3, the conical surface fit is formed between the outer side wall of the spring sleeve 3 and the inner side wall of the grinding wheel flange plate 2 to axially fix the grinding wheel flange plate 2, and meanwhile, in the process that the spring sleeve 3 is pressed and deformed, the positive stress deformation generated by the pressing plate 1 on the spring sleeve 3 is converted into tight connection of the grinding wheel flange plate 2, so that the radial fixing effect on the grinding wheel flange plate 2 is achieved;
in addition, this application embodiment is a no key hookup that realizes load transfer rises and tightly installs, can improve the gear grinding machining precision of gear, can be fast effectual can solve present failure fault, has simple structure, and positioning accuracy is high and processing equipment is convenient advantage.
In the embodiment of the utility model, the taper of the outer side wall of the spring sleeve 3 is between 1:20 and 1: 5; the taper of the outer side wall of the spring housing 3 is preferably 1: 10.
In the embodiment of the utility model, the length of the spring sleeve 3 in the front-back direction is a, and the length of the grinding wheel flange plate 2 in the front-back direction is b, wherein 0mm < b-a <4 mm; preferably, b-a is 2 mm.
In the embodiment of the utility model, the coaxiality of the outer side wall and the inner side wall of the spring sleeve 3 at least reaches 0.008 mm; thereby the centering of the spring housing 3 is good, the precision is high, and the firm connection and tensioning are ensured.
In the embodiment of the utility model, the outer side wall of the spring sleeve 3 is provided with a plurality of straight grooves in the front-back direction, the straight grooves are uniformly distributed on the outer side wall of the spring sleeve 3 in a circumferential manner, and the width range of the straight grooves is 0.5-1.5 mm; the width of the straight groove is preferably 1 mm; so set up, can guarantee that spring housing 3 has the space of deformation.
Further preferably, a plurality of straight flutes include a first straight flute and a plurality of second straight flute, the both ends of first straight flute are the open end, the both ends of second straight flute are open end and closed end respectively, the open end of second straight flute is located the preceding terminal surface of spring housing 3, the closed end of second straight flute is apart from the interval of 3 rear end faces of spring housing and is not more than 1 cm.
In the embodiment of the present invention, the pressing plate 1 includes a third shaft body and a fourth shaft body which are integrally formed, the fourth shaft body is located at the front side of the third shaft body, the diameter of the fourth shaft body is smaller than that of the third shaft body,
the inner side wall of the spring sleeve 3 is provided with a step surface 30, the step surface 30 is close to the rear end face of the spring sleeve 3, the fourth shaft body abuts against the step surface 30, and the third shaft body abuts against the grinding wheel flange 2.
Preferably, a gasket is further arranged, the gasket is sleeved on the fourth shaft body, and the gasket is located between the third shaft body and the grinding wheel flange 2; therefore, the large abrasion between the grinding wheel flange plate 2 and the pressing plate 1 can be effectively prevented, and the abrasion can be compensated by changing the thickness of the gasket even if the abrasion is generated.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A tension connecting device for a main shaft is characterized in that; the grinding wheel spindle comprises a pressing plate (1), a grinding wheel flange plate (2) and a spring sleeve (3), wherein the spindle comprises a first shaft body (40) and a second shaft body (41) which are connected, the first shaft body (40) is located at the outer end of the spindle, the diameter of the first shaft body (40) is smaller than that of the second shaft body (41), the spring sleeve (3) and the grinding wheel flange plate (2) are sleeved on the first shaft body (40), the spring sleeve (3) is located between the first shaft body (40) and the grinding wheel flange plate (2), and the pressing plate (1) is in threaded fit with the first shaft body (40) through a bolt piece (5) and can press the spring sleeve (3) and the grinding wheel flange plate (2) to be abutted against the second shaft body (41);
the outer side wall of the spring sleeve (3) is in conical surface fit with the inner side wall of the grinding wheel flange plate (2), and the diameter of the outer side wall of the spring sleeve (3) is gradually reduced from back to front.
2. Tension coupling for a spindle according to claim 1, characterised in that the taper of the outer side wall of the spring housing (3) is between 1:20 and 1: 5.
3. Tension coupling device for a spindle according to claim 1, characterised in that the length of the spring housing (3) in the front-rear direction is a and the length of the grinding wheel flange (2) in the front-rear direction is b, wherein 0mm < b-a <4 mm.
4. The tension coupling device for a spindle according to claim 1, wherein the coaxiality of the outer side wall and the inner side wall of the spring sleeve (3) is at least 0.008 mm.
5. The tension coupling device for the main shaft as claimed in claim 1, wherein the outer side wall of the spring housing (3) is provided with a plurality of straight grooves in the front-rear direction, the straight grooves are circumferentially and uniformly distributed on the outer side wall of the spring housing (3), and the width of the straight grooves ranges from 0.5mm to 1.5 mm.
6. The tensioning connection device for the main shaft according to claim 5, wherein the plurality of straight grooves comprise a first straight groove and a plurality of second straight grooves, both ends of the first straight groove are open ends, both ends of the second straight groove are open ends and closed ends respectively, the open end of the second straight groove is located on the front end face of the spring sleeve (3), and the distance between the closed end of the second straight groove and the rear end face of the spring sleeve (3) is not more than 1 cm.
7. Tension coupling device for a spindle according to claim 1, characterised in that the pressure plate (1) comprises a third shaft body and a fourth shaft body, which are integrally formed, the fourth shaft body being located at the front side of the third shaft body, the fourth shaft body having a smaller diameter than the third shaft body,
the inner side wall of the spring sleeve (3) is provided with a step surface (30), the step surface (30) is close to the rear end face of the spring sleeve (3), the fourth shaft body abuts against the step surface (30), and the third shaft body abuts against the grinding wheel flange plate (2).
8. A tightening coupling for spindles according to claim 7, characterized in that a washer is provided, which is mounted on the fourth shaft, and which is located between the third shaft and the wheel flange (2).
9. A tensioning coupling for a spindle according to claim 1, characterized in that a gasket is provided, which is located between the pressure plate (1) and the wheel flange (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122290436.7U CN216666272U (en) | 2021-09-22 | 2021-09-22 | Tension connecting device for main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122290436.7U CN216666272U (en) | 2021-09-22 | 2021-09-22 | Tension connecting device for main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216666272U true CN216666272U (en) | 2022-06-03 |
Family
ID=81765435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122290436.7U Active CN216666272U (en) | 2021-09-22 | 2021-09-22 | Tension connecting device for main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216666272U (en) |
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2021
- 2021-09-22 CN CN202122290436.7U patent/CN216666272U/en active Active
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