CN211489653U - Numerically controlled lathe spindle shockproof sleeve - Google Patents
Numerically controlled lathe spindle shockproof sleeve Download PDFInfo
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- CN211489653U CN211489653U CN201922501241.5U CN201922501241U CN211489653U CN 211489653 U CN211489653 U CN 211489653U CN 201922501241 U CN201922501241 U CN 201922501241U CN 211489653 U CN211489653 U CN 211489653U
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- controlled lathe
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Abstract
The utility model discloses a numerically controlled lathe main shaft shock-proof sleeve, which comprises a sleeve body, wherein the sleeve body comprises a first connecting part, a second connecting part and a third connecting part which are coaxial and connected in sequence, the hollow space of the first connecting part, the second connecting part and the third connecting part forms an accommodating space of a workpiece to be machined, the outer diameter of the first connecting part is the same as that of the third connecting part, and the outer diameter of the second connecting part is smaller than that of the first connecting part; the numerically controlled lathe spindle shockproof sleeve with the structure reduces the contact area between the numerically controlled lathe spindle shockproof sleeve and the inner wall of the spindle, so that an operator can quickly take the numerically controlled lathe spindle shockproof sleeve out of the spindle.
Description
Technical Field
The utility model relates to a numerical control lathe technical field specifically relates to a numerical control lathe main shaft cover that takes precautions against earthquakes.
Background
When the numerical control lathe is used for processing a bar, one end of the bar is positioned by the fixture, the other end of the bar extends into the main shaft of the numerical control lathe, then the bar can rotate at a high speed along with the main shaft of the numerical control lathe, the bar is long, and the swing range of one end inserted into the main shaft is too large easily, so that the straightness and performance of the bar are affected. However, when a rod material is machined, the spindle of the numerically controlled lathe rotates at a high speed, a large amount of heat is generated between the inner wall of the spindle and the shockproof sleeve, so that the shockproof sleeve is heated and expanded, the expanded shockproof sleeve is tightly attached to the spindle, even vacuum is formed, the shockproof sleeve is difficult to take out, an operator wastes a large amount of time and energy when replacing the shockproof sleeve, and the machining efficiency of the numerically controlled lathe is further affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of above-mentioned background art, provide a numerically controlled lathe main shaft shock-proof sleeve, make operating personnel can take out it from the numerically controlled lathe main shaft fast.
The utility model provides a numerically controlled lathe main shaft cover that takes precautions against earthquakes, it includes: the cover body, the cover body includes coaxial line and the first connecting portion, second connecting portion, the third connecting portion that connect gradually, first connecting portion the second connecting portion the accommodation space of treating the machined part is constituteed in the hollow space of third connecting portion, the external diameter of first connecting portion with the external diameter of third connecting portion is the same, the external diameter of second connecting portion is less than the external diameter of first connecting portion.
The numerical control lathe spindle shockproof sleeve can also integrally form the first connecting part, the second connecting part and the third connecting part, so that the strength of the numerical control lathe spindle shockproof sleeve is further higher.
The numerical control lathe spindle shockproof sleeve can also enable the first connecting part, the second connecting part and the third connecting part to be in threaded connection, and further enables the numerical control lathe spindle shockproof sleeve to be more convenient to machine.
The first connecting portion and the outer surface of the numerical control lathe spindle shock-proof sleeve are provided with a first groove, a first elastic sealing element in a shape matched with the shape of the first groove is arranged in the first groove, the first elastic sealing element extends out of the surface of the first groove, a third connecting portion and the outer surface of the third connecting portion are provided with a third groove, a third elastic sealing element in a shape matched with the shape of the third groove is arranged in the third groove, the third elastic sealing element extends out of the surface of the third groove, the contact area between the first connecting portion and the third connecting portion of the numerical control lathe spindle shock-proof sleeve and the spindle is further smaller, the elastic sealing elements are added, and the contact elasticity is better.
The numerical control lathe spindle shockproof sleeve preferably enables the first groove to be an annular groove formed in the outer peripheral direction of the first connecting portion, the first groove is internally sleeved with a first annular sealing ring, the third groove is an annular groove formed in the outer peripheral direction of the third connecting portion, and the third groove is internally sleeved with a third annular sealing ring, so that the contact area between the first connecting portion and the third connecting portion of the numerical control lathe spindle shockproof sleeve and the spindle is smaller, and the contact elasticity is better.
The numerical control lathe spindle shock-proof sleeve is characterized in that the first groove comprises a plurality of first sub-grooves arranged at intervals in the outer peripheral direction of the first connecting portion, each first sub-groove is internally provided with a first elastic sealing gasket in a shape matched mode, the third groove comprises a plurality of third sub-grooves arranged at intervals in the outer peripheral direction of the third connecting portion, each third sub-groove is internally provided with a third elastic sealing gasket in a shape matched mode, and therefore the first connecting portion and the third connecting portion of the numerical control lathe spindle shock-proof sleeve are smaller in contact area with the spindle and better in contact elasticity.
In the above-mentioned shockproof sleeve for a spindle of a numerically controlled lathe, preferably, the first connecting portion and the outer surface are provided with a plurality of first grooves distributed along the axial direction of the first connecting portion, each first groove is internally provided with a first elastic sealing element with a matched shape, the third connecting portion and the outer surface are provided with a plurality of third grooves distributed along the axial direction of the third connecting portion, and each third groove is internally provided with a third elastic sealing element with a matched shape, so that the contact area between the first connecting portion and the third connecting portion of the shockproof sleeve for a spindle of a numerically controlled lathe and the spindle is smaller, and the contact elasticity is better.
The numerical control lathe spindle shockproof sleeve can also enable the outer peripheral edge of the second connecting part to be circular, elliptical or square, and further enables the numerical control lathe spindle shockproof sleeve to adapt to various working conditions.
The numerical control lathe spindle shockproof sleeve can also enable the length of the first connecting part to be the same as that of the third connecting part, and enable the length of the second connecting part to be 2-5 times that of the first connecting part, so that the working strength can meet the requirement while the contact area between the numerical control lathe spindle shockproof sleeve and a spindle is small.
The numerical control lathe spindle shockproof sleeve can also enable the outer peripheral edges of the first connecting part and the third connecting part to be arc chamfers, and further enables the contact area of the numerical control lathe spindle shockproof sleeve and a spindle to be smaller, the spindle to be in smooth contact and the spindle to be easy to take out.
Compared with the prior art, the utility model has the advantages as follows:
the utility model discloses a numerical control lathe main shaft shock-proof sleeve, the external diameter of its second connecting portion is less than the external diameter of first connecting portion and third connecting portion, shock-proof sleeve put into the main shaft after inside, only first connecting portion and third connecting portion and the contact of main shaft inner wall, and the second connecting portion not with the contact of main shaft inner wall, reduced shock-proof sleeve and main shaft inner wall's area of contact, when shock-proof sleeve is heated the thermal expansion and closely pastes with the main shaft inner wall, take out the degree of difficulty and be less than current cylinder formula shock-proof sleeve.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of an axial section of the present invention.
Fig. 3 is a schematic structural diagram of the present invention in operation.
Reference numerals: 1-sleeve body, 2-first connecting part, 3-second connecting part, 4-third connecting part, 5-first elastic sealing ring, 6-third elastic sealing ring, 7-first groove, 8-third groove, 9-numerical control lathe spindle and 10-bar.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Embodiment 1, as shown with reference to fig. 1 and 2, the embodiment of the utility model discloses a numerically controlled lathe main shaft shock-proof sleeve, it includes: the sleeve body 1, the sleeve body 1 includes coaxial line and first connecting portion 2, second connecting portion 3, third connecting portion 4 that connect gradually, first connecting portion 2 second connecting portion 3 third connecting portion 4 inside communicates each other, and the accommodation space of treating the machined part is constituteed jointly to three's hollow space. In the present embodiment, the outer peripheries of the first connecting portion 2 and the third connecting portion 4 are both circular, and the inner walls thereof are also circular, that is, the first connecting portion 2 and the third connecting portion 4 are both cylindrical. It can be understood that the outer peripheries of the first connecting portion 2 and the third connecting portion 4 may have other shapes, for example, the outer peripheries may have a rounded square shape, that is, four edges parallel to the axial direction of the spindle of the numerically controlled lathe are all arc chamfers, and the shapes of the first connecting portion 2 and the third connecting portion 4 are only required to achieve the effect of supporting the shockproof sleeve of the spindle of the numerically controlled lathe when the shockproof sleeve is in contact with the inner wall of the spindle. The shapes of the inner walls of the first connecting part 2 and the third connecting part 4 are not limited, and the swing amplitude of the workpiece to be machined can be effectively limited. The outer diameter of the first connecting portion 2 is the same as that of the third connecting portion 4, and the outer diameter of the second connecting portion 3 is smaller than that of the first connecting portion 2, in this embodiment, the outer peripheral edge of the second connecting portion 3 is circular, and the inner wall of the second connecting portion 3 is also circular, that is, the second connecting portion 3 is also cylindrical, it can be understood that the outer peripheral edge of the second connecting portion 3 can also be set to be oval or square or other shapes as required, and because the second connecting portion 3 is not in contact with the inner wall of the spindle of the numerically controlled lathe, the shape limitation is smaller, and the purpose of reducing the contact area and ensuring the working strength of the anti-vibration sleeve is achieved. In this embodiment, the first connecting portion 2, the second connecting portion 3, and the third connecting portion 4 are also integrally formed by injection molding, so as to further increase the strength of the numerically controlled lathe spindle shock-proof sleeve. It can be understood that, when the first connecting portion 2, the second connecting portion 3, the third connecting portion 4 are different in shape, the processing difficulty may be increased by adopting the injection molding integrated forming method, and then the first connecting portion 2, the second connecting portion 3, the third connecting portion 4 may be connected in a detachable manner, for example, the connecting ends of the first connecting portion 2 and the third connecting portion 4 may be provided with internal threads, the two ends of the second connecting portion 3 are provided with external threads with matched shapes, and the first connecting portion 2, the second connecting portion 3, and the third connecting portion 4 are both simply detached and installed by adopting such a threaded connection method. And the sub-component processing mode further ensures that the numerical control lathe spindle shockproof sleeve is more convenient to process when meeting various working condition requirements.
In operation of this embodiment of the above structure, referring to fig. 3, a shock-proof sleeve made of plastic with a suitable inner diameter is selected to be inserted into the spindle 9 of the numerically controlled lathe according to the specification of the bar 10. One end of the bar 10 is positioned by the existing fixture, the other end of the bar extends into the main shaft 9 of the numerically controlled lathe through the shockproof sleeve, when the numerically controlled lathe works, the shockproof sleeve can effectively limit the bar 10, and the phenomenon that the straightness and product performance of the bar 10 are affected due to the fact that the swing amplitude of the bar 10 is too large when the bar 10 rotates is avoided. When the shockproof sleeve needs to be replaced, the shockproof sleeve is pulled out of the numerical control lathe spindle 9, and the second connecting portion 3 of the shockproof sleeve is small in outer diameter and does not contact with the inner wall of the numerical control lathe spindle 9, so that the attaching area of the shockproof sleeve and the inner wall of the numerical control lathe spindle 9 is reduced greatly, and time and labor are saved when an operator pulls out the shockproof sleeve.
Embodiment 2, with reference to fig. 1 and 2, in this embodiment, on the basis of embodiment 1, the first connecting portion 2 is provided with a first groove 7 on the outer surface, in this embodiment two annular first recesses 7 arranged axially along said first connection portion 2, a first elastic sealing ring 5 with a matched shape is arranged in the first groove 7, the first elastic sealing ring 5 extends out of the surface of the first groove 7, the third connecting part 4, in this embodiment too two annular third grooves 8 are provided in the outer surface arranged axially along said third connecting portion 4, a third elastic sealing ring 6 with a matched shape is also arranged in the third groove 8, and the third elastic sealing ring 6 extends out of the surface of the third groove 8, and it can be understood that, under the condition that the working strength of the numerical control lathe spindle shockproof sleeve is not influenced, other numbers of grooves can be arranged on the surfaces of the first connecting part 2 and the third connecting part 4. This embodiment of this structure further makes the first connecting portion 2 and the third connecting portion 4 of shockproof cover diminish with the area of contact of main shaft to, increased the elastic sealing circle that stretches out the surface in the recess, when the first connecting portion 2 and the third connecting portion 4 of shockproof cover hug closely with the main shaft inner wall, contact elasticity is better, and operating personnel pulls out the shockproof cover from the main shaft more easily.
Embodiment 3, the numerically controlled lathe spindle shock-proof sleeve of the present embodiment is different from embodiment 2 in that the first groove 7 is not a continuous groove extending along the outer periphery of the first connecting portion 2, but comprises a plurality of first sub-grooves arranged at intervals along the outer peripheral direction of the first connecting part 2, the first grooves 7 are formed by the first sub-grooves which are arranged in a scattered way, a first elastic sealing gasket with a matched shape is arranged in each first sub-groove, these first resilient gaskets extend beyond the surface of the first sub-grooves, the third groove 8 comprises a plurality of third sub-grooves arranged at intervals along the outer circumferential direction of the third connecting portion 4, the third grooves 8 are formed by the scattered third grooves, and third elastic sealing gaskets with matched shapes are arranged in each third groove and extend out of the surface of the third groove. It is also possible to have several first partial grooves in one group, several groups of first partial grooves distributed in the axial direction of the first connection 2, and the third partial grooves arranged in the same manner. This embodiment of this kind of structure can make the recess and the cushion on the surface of first connecting portion 2 and third connecting portion 4 distribute more evenly to further make the first connecting portion 2 and the third connecting portion 4 of shockproof cover diminish with the area of contact of main shaft, and contact elasticity is better, and when operating personnel need to change the shockproof cover, because the elastic action, pull out the shockproof cover from the main shaft more easily.
Embodiment 4, in this embodiment, based on embodiment 2, the length of the first connecting portion 2 is equal to that of the third connecting portion 4, and the length of the second connecting portion 3 is preferably 2 to 5 times, in this embodiment 3 times, the length of the first connecting portion 2 is further equal to that of the second connecting portion 3, so that the working strength of the anti-vibration sleeve can meet the requirement while the contact area between the anti-vibration sleeve and the spindle is reduced as much as possible, and the working strength of the anti-vibration sleeve is affected by the overlong length of the second connecting portion 3.
In this embodiment, still will first connecting portion 2 with the outer peripheral edge border of third connecting portion 4 all sets up to arc chamfer, can further reduce first connecting portion 2 with the area of contact of third connecting portion 4 with the main shaft inner wall more can make the border and the main shaft inner wall contact of first connecting portion 2 and third connecting portion 4 are more smooth, further make the shockproof cover take out from the main shaft more easily.
Various modifications and variations of the embodiments of the present invention may be made by those skilled in the art, and they are within the scope of the present invention provided they are within the scope of the claims and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (10)
1. The utility model provides a shockproof cover of numerical control lathe main shaft which characterized in that includes: the cover body (1), the cover body includes coaxial line and the first connecting portion (2), second connecting portion (3), the third connecting portion (4) that connect gradually, first connecting portion (2) second connecting portion (3) the accommodation space of treating the machined part is constituteed to the cavity space of third connecting portion (4), the external diameter of first connecting portion (2) with the external diameter of third connecting portion (4) is the same, the external diameter of second connecting portion (3) is less than the external diameter of first connecting portion (2).
2. The numerically controlled lathe spindle shock-proof sleeve as defined in claim 1, wherein: the first connecting portion (2), the second connecting portion (3) and the third connecting portion (4) are integrally formed.
3. The numerically controlled lathe spindle shock-proof sleeve as defined in claim 1, wherein: the first connecting part (2), the second connecting part (3) and the third connecting part (4) are in threaded connection.
4. The numerically controlled lathe spindle shock-proof sleeve as defined in claim 1, wherein: first connecting portion (2), the surface is equipped with first recess (7), be equipped with the first elastic sealing element of shape looks adaptation in first recess (7), first elastic sealing element stretches out first recess (7) surface, third connecting portion (4), surface are equipped with third recess (8), be equipped with the third elastic sealing element of shape looks adaptation in third recess (8), third elastic sealing element stretches out third recess (8) surface.
5. The numerically controlled lathe spindle shock-proof sleeve as defined in claim 4, wherein: first recess (7) are for following the annular groove that the outer peripheral edge direction of first connecting portion (2) set up, first recess (7) endotheca is equipped with first ring type seal (5), third recess (8) are for following the annular groove that the outer peripheral edge direction of third connecting portion (4) set up, third ring type seal (6) are equipped with to third recess (8) endotheca.
6. The numerically controlled lathe spindle shock-proof sleeve as defined in claim 4, wherein: first recess (7) include the edge the first minute groove of several that first connecting portion (2) outer peripheral edges direction interval set up, every be equipped with the first elastic sealing pad of shape looks adaptation in the first minute groove, third recess (8) include the edge the several third minute groove that third connecting portion (4) outer peripheral edges direction interval set up, every be equipped with the third elastic sealing pad of shape looks adaptation in the third minute groove.
7. The numerically controlled lathe spindle shock-proof sleeve as defined in claim 4, wherein: first connecting portion (2), surface are equipped with the several and follow first recess (7) that first connecting portion (2) axial distribution, every all be equipped with the first elastic sealing spare of shape looks adaptation in first recess (7), third connecting portion (4), surface are equipped with the several and follow third connecting portion (4) axial distribution's third recess (8), every all be equipped with the third elastic sealing spare of shape looks adaptation in third recess (8).
8. The numerically controlled lathe spindle shock-proof sleeve as defined in claim 1, wherein: the outer periphery of the second connecting part (3) is circular, oval or square.
9. The numerically controlled lathe spindle shock-proof sleeve as defined in claim 1, wherein: the length of the first connecting portion (2) is the same as that of the third connecting portion (4), and the length of the second connecting portion (3) is 2-5 times that of the first connecting portion (2).
10. The numerically controlled lathe spindle shock-proof sleeve as defined in claim 1, wherein: the outer peripheral edge of the first connecting portion (2) and the outer peripheral edge of the third connecting portion (4) are both arc-shaped chamfers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922501241.5U CN211489653U (en) | 2019-12-31 | 2019-12-31 | Numerically controlled lathe spindle shockproof sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922501241.5U CN211489653U (en) | 2019-12-31 | 2019-12-31 | Numerically controlled lathe spindle shockproof sleeve |
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| Publication Number | Publication Date |
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| CN211489653U true CN211489653U (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922501241.5U Active CN211489653U (en) | 2019-12-31 | 2019-12-31 | Numerically controlled lathe spindle shockproof sleeve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114453603A (en) * | 2022-03-15 | 2022-05-10 | 珠海格力电器股份有限公司 | Electric spindle and numerical control machine tool with same |
-
2019
- 2019-12-31 CN CN201922501241.5U patent/CN211489653U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114453603A (en) * | 2022-03-15 | 2022-05-10 | 珠海格力电器股份有限公司 | Electric spindle and numerical control machine tool with same |
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