CN203092253U - Lead screw air cooling device - Google Patents
Lead screw air cooling device Download PDFInfo
- Publication number
- CN203092253U CN203092253U CN 201220705118 CN201220705118U CN203092253U CN 203092253 U CN203092253 U CN 203092253U CN 201220705118 CN201220705118 CN 201220705118 CN 201220705118 U CN201220705118 U CN 201220705118U CN 203092253 U CN203092253 U CN 203092253U
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- air
- outer shroud
- screw mandrel
- ring
- interior ring
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Abstract
The utility model relates to a lead screw air cooling device which is mainly applied to high-precision machine tools. Existing cooling devices are complex in structure and poor in cooling effect on lead screws. The lead screw air cooling device is characterized by comprising an inner ring, an outer ring and a plurality of screws, the inner ring is composed of an inner ring body and an air cooling sleeve, inner ring round holes are arranged in the inner ring body, lead screw channels are arranged in the air cooling sleeve, two circles of air outlets are uniformly arranged on the wall surface of the air cooling sleeve, and the axis of each air outlet is intersected with the axis of the air cooling sleeve perpendicularly. The air cooling sleeve is fixed on the inner ring body, the outer ring is composed of an outer ring body and an outer ring loop, outer ring round holes are arranged in the outer ring body, and air inlets are arranged on the wall surface of the outer ring loop. The inner ring is fixed with the outer ring through the screws. The lead screw channels are aligned to the outer ring round holes, and a cold air distribution chamber of a circular structure is formed by surrounding of the inner ring body, the air cooling sleeve, the outer ring body and the outer ring loop. The lead screw air cooling device is simple in structure, low in manufacturing cost and good in cooling effect on the lead screws.
Description
Technical field
The utility model relates to a kind of air-cooled mechanism, especially relates to the air-cooled mechanism of a kind of screw mandrel, is mainly used in the high-precision lathe, is used for screw mandrel is cooled off.
Background technology
Lathe is when operation, and owing to friction produces heat, these heats can cause screw mandrel the situation of heat expansion to occur, thereby influence the precision of screw mandrel between screw mandrel on the lathe and the nut seat.Lathe commonly used at present adopts the mode of oil cooling to handle the situation that heat expansion appears in screw mandrel usually, be that screw mandrel is made into hollow structure, the cold oil that is used for cooling off can flow at the screw mandrel of hollow structure, adopts the oil cooling mode to cool off some deficiency below the main existence to screw mandrel in the lathe.
1, screw mandrel itself is had specific (special) requirements, requiring screw mandrel is hollow structure, and cold oil can flow in screw mandrel like this, to take away the heat that screw mandrel is produced owing to friction, but the manufacturing of the screw mandrel of hollow structure and difficulty of processing are very big, have improved the cost of equipment.
2, since lathe in running, screw mandrel is in the high speed rotation status, generally, the rotating speed of screw mandrel is more than 3000 rev/mins, the situation of leaking does not appear when guaranteeing the cold oil in-out lead screw, need to have good sealing property between screw mandrel and the docking mechanism, this has just increased the complexity of equipment and the cost that has improved equipment greatly.
When 3, adopting cold oil that screw mandrel is cooled off, after lathe work a period of time, all can occur the phenomenon of cold oil seepage usually, cause the cost of plant maintenance at ordinary times and maintenance higher,, will bring damp production to enterprise in case cause equipment fault.
4, cold oil is to flow in the screw mandrel of hollow structure, to take away screw mandrel because the friction heat that produced, be cold oil to the cooling of screw mandrel be from inside to outside, but, screw mandrel in the course of the work, because the heat that friction is produced produces from the screw mandrel top layer, that is to say that the thermal deformation on the screw mandrel is from outside to inside, this with regard to causing screw mandrel because the heat that produced of friction is difficult in time, effectively be cooled oil take away, the effect that heat is transmitted is relatively poor, control to the screw mandrel thermal deformation is affected, and finally has influence on the precision of screw mandrel.
5, the running of oil cooling mechanism needs special-purpose cold oil, and oil require is regularly changed, thereby causes the wasting of resources, has also brought problems such as waste oil recovery immediately.
6, need in the lathe to increase and overlap independently refrigeration mechanism and pressure conveying mechanism, increased the manufacturing cost of equipment, cause the purchase cost of enterprise to improve, meanwhile, the also corresponding raising of the later maintenance of equipment and use cost.
It is comparatively general that the screw mandrel of present employing hollow structure is handled the heat expansion situation, as the applying date be on December 29th, 2010, application number is in 201020685060.9 the Chinese patent, screw mandrel in the hollow of record in the cooling type ball screw assembly, is exactly a hollow structure, the interior cooling type ball screw assembly, of this hollow comprises ball screw, ball nut, ball, is used for the ball-returning device of circulating ball, said ball screw is a hollow ball screw, and this ball screw assembly, also comprises two sealing devices, two rolling support devices and outside cooling circuit device in addition.And for example the applying date is on 01 13rd, 2012, and application number is in the Chinese patent of 201220014953.X, record also be a kind of screw structure of hollow.All there is above-mentioned deficiency in these screw mandrel cooling structures.
In sum, also do not have a kind of simple in structurely, reasonable in design now, low cost of manufacture is to the screw mandrel cooling body of the good cooling results of screw mandrel.
The utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and provides a kind of simple in structure, and is reasonable in design, and low cost of manufacture is to the air-cooled mechanism of screw mandrel of the good cooling results of screw mandrel.
The technical scheme in the invention for solving the above technical problem is: the air-cooled mechanism of this screw mandrel, it is characterized in that: it is by interior ring, outer shroud and several screws are formed, ring is made up of interior ring body and air-cooled cover in described, the ring body is a cirque structure in described, the center of ring body is provided with in one and encircles circular hole in described, be provided with the quantity interior ring connecting hole identical around this interior ring body with screw, described air-cooled cover is columnar structured, be provided with the screw mandrel passage in the described air-cooled cover, this screw mandrel passage is a cylindrical structural, the diameter of the interior ring circular hole in the diameter of described screw mandrel passage and the interior ring body is identical, the wall of described air-cooled cover is provided with the two circle exhaust vents that are arranged in circular configuration uniformly, the number of every circle exhaust vent is nine, described exhaust vent is cylindrical structural, the axis of this exhaust vent all with the intersect vertical axis of air-cooled cover; Be arranged in the exhaust vent of same circle, the axes intersect of adjacent two exhaust vents, and the angle between the axis of these two adjacent exhaust vents is 40 degree; On the ring body, the interior ring circular hole in screw mandrel passage in this air-cooled cover and the interior ring body alignd in described air-cooled cover was fixed on, and the axis in axis in the described air-cooled cover and the interior ring body is overlapping; Described outer shroud is made up of outer shroud body and external toroidal ring, described outer shroud body is a cirque structure, the center of this outer shroud body is provided with an outer shroud circular hole, the diameter of the interior ring circular hole in the diameter of this outer shroud circular hole and the interior ring body is identical, be provided with shape around the described outer shroud body, the outer shroud connecting hole that quantity and position all are complementary with interior ring connecting hole, described external toroidal ring is columnar structured, the wall of this external toroidal ring is provided with an air inlet, described air inlet is a cylindrical structural, the size of this air inlet is greater than the size of exhaust vent, described external toroidal ring is fixed on the outer shroud body, the periphery of the outer wall of this external toroidal ring and outer shroud body flushes, and the axis of the axis of described external toroidal ring and outer shroud body is overlapping; Ring and outer shroud are fixed by several screws in described, described screw cross-under is in corresponding outer shroud connecting hole and interior ring connecting hole, screw mandrel passage in the described air-cooled cover and the alignment of the outer shroud circular hole in the outer shroud body, the axis in the described air-cooled cover and the axis of external toroidal ring are overlapping, and described interior ring body, air-cooled cover, outer shroud body and external toroidal ring surround the cold wind distribution cavity of a cirque structure.
Preferably, the number of screw described in the utility model is six.
Preferably, described in the utility model in the ring body around be provided with one the circle sealing ring, the sealing circle surround external toroidal ring around.
Preferably, outer shroud connecting hole described in the utility model is a counter bore structure.
Preferably, alignment mutually between the circle of two in the air-cooled cover described in the utility model exhaust vent.
The utility model compared with prior art, have the following advantages and effect: efficiently solve high-speed, high precision Digit Control Machine Tool oil cooling mechanism production cost height, difficulty of processing is big, the later maintenance maintenance cost height of equipment, enterprise's later stage operation cost height, and the complicated refrigerating plant structure complicated problems more that causes whole lathe.
Of the present utility model simple in structure, easy to manufacture, production cost is low, only form by interior ring, outer shroud and several screws, during use, be directly installed on the both direction of screw mandrel motion, the diameter of screw mandrel is less than the diameter of screw mandrel passage in the air-cooled cover, and screw mandrel directly is sleeved in the screw mandrel passage, exhaust vent in the interior ring is aimed at screw mandrel, outside source of the gas enters the cold wind distribution cavity by the air inlet of outer shroud, flows out from exhaust vent again, and cooling blast is directly injected to the outer wall of screw mandrel, screw mandrel is played cooling effect, when lathe stopped, air valve can time-delay closing, stopped to blow.
Because screw mandrel in the course of the work, because the heat that friction is produced produces from the screw mandrel top layer, that is to say that the thermal deformation on the screw mandrel is from outside to inside, the utility model is directly lowered the temperature to the screw mandrel top layer, good cooling effect, screw mandrel because the heat that produced of friction can in time, effectively be cooled air-flow take away, prevent that effectively the situation of thermal deformation from appearring in screw mandrel, guarantees the precision of screw mandrel.In addition,, greatly reduce the manufacture difficulty of screw mandrel, reduced the production cost of equipment because screw mandrel need not to manufacture hollow structure.Adopt air as cooling medium, cost is low, not only environmental protection but also energy-conservation, and self all has the source of the gas supply system machining factory, need not additionally to add auxiliary equipment, has reduced the cost of lathe.
Member of the present utility model is few, cost is low, and each member of mechanism is all the screw assembling, and assembly and disassembly is very convenient; The heat that the screw mandrel motion is produced is disposed immediately, reached the purpose of no thermal deformation.
Description of drawings
Fig. 1 is the main TV structure schematic diagram of the air-cooled mechanism of screw mandrel in the present embodiment.
Fig. 2 is the right TV structure schematic diagram of Fig. 1.
Fig. 3 is the left TV structure schematic diagram of Fig. 1.
Fig. 4 is the plan structure schematic diagram of Fig. 1.
Fig. 5 is the main TV structure schematic diagram of interior ring in the present embodiment.
Fig. 6 is the left TV structure schematic diagram of Fig. 5.
Fig. 7 is the main TV structure schematic diagram of outer shroud in the present embodiment.
Fig. 8 is the left TV structure schematic diagram of Fig. 7.
Fig. 9 is the structural representation of the axis of ring body in the interior ring body acceptance of the bid of interior ring is marked with.
Figure 10 is the structural representation that is marked with the axis of air-cooled cover in the air-cooled cover acceptance of the bid of interior ring.
Figure 11 is the structural representation that is marked with the axis of external toroidal ring in the outer shroud acceptance of the bid.
Figure 12 is the structural representation that is marked with the axis of outer shroud body in the outer shroud acceptance of the bid.
Figure 13 be in the present embodiment in the ring and the outer shroud split after structural representation.
Figure 14 is that screw mandrel is installed in the structural representation in the air-cooled mechanism of screw mandrel of present embodiment.
Figure 15 is the right TV structure schematic diagram of Figure 14.
Figure 16 is the left TV structure schematic diagram of Figure 14.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment.
Embodiment.
Referring to Fig. 1 to Figure 16, the air-cooled mechanism of the screw mandrel in the present embodiment is made up of interior ring 1, outer shroud 2 and six screws 3, and the number of screw 3 can be provided with according to actual needs in the utility model, and the number of screw 3 is generally more than three.
In ring 1 forms by interior ring body 11 and air-cooled cover 12, interior ring body 11 be a cirque structure, is provided with ring circular hole 15 at the center of interior ring body 11, that encircles body 11 in this is provided with the quantity interior ring connecting hole 14 identical with screw all around.Around interior ring body 11, be provided with a circle sealing ring 17.
Air-cooled cover 12 is columnar structured, be provided with screw mandrel passage 16 in the air-cooled cover 12, this screw mandrel passage 16 is a cylindrical structural, the diameter of the interior ring circular hole 15 in the diameter of screw mandrel passage 16 and the interior ring body 11 is identical, the wall of air-cooled cover 12 is provided with the two circle exhaust vents 13 that are arranged in circular configuration uniformly, the wall that is air-cooled cover 12 is provided with two circle exhaust vents 13 uniformly, and every circle exhaust vent 13 all is arranged in circular configuration.The number of every circle exhaust vent 13 is nine, that is to say that nine exhaust vents 13 are arranged in cyclic structure in the circle exhaust vent 13.Exhaust vent 13 is cylindrical structural, and the axis of this exhaust vent 13 all intersects vertically with the axis d of air-cooled cover 12, and promptly the axis of exhaust vent 13 is that axis d with air-cooled cover 12 intersects, and the axis of exhaust vent 13 is perpendicular with the axis d of air-cooled cover 12.
Alignment mutually between in the air-cooled cover 12 the two circle exhaust vent 13, promptly an exhaust vent 13 in the circle exhaust vent 13 is corresponding one by one with the exhaust vent 13 that another encloses in exhaust vent 13, alignment mutually between the exhaust vent 13 of these two the mutual correspondences in difference circle exhaust vent 13.At the exhaust vent 13 that is arranged in same circle exhaust vent 13, the axes intersect of adjacent two exhaust vents 13, and the angle between the axis of these two adjacent exhaust vents 13 is 40 degree.
Encircle on the body 11 in air-cooled cover 12 is fixed on, screw mandrel passage 16 in this air-cooled cover 12 and 15 alignment of the interior ring circular hole in the interior ring body 11, because the diameter of the interior ring circular hole 15 in the diameter of screw mandrel passage 16 and the interior ring body 11 is identical, makes screw mandrel passage 16 and interior ring circular hole 15 match.Axis t in axis d in the air-cooled cover 12 and the interior ring body 11 is overlapping.
External toroidal ring 22 is columnar structured, and the wall of this external toroidal ring 22 is provided with an air inlet 23, and air inlet 23 is a cylindrical structural, and the size of this air inlet 23 is greater than the size of single exhaust vent 13.Generally, air inlet 23 is arranged on the centre position of the wall of external toroidal ring 22.
External toroidal ring 22 is fixed on the outer shroud body 21, and the periphery of the outer wall of this external toroidal ring 22 and outer shroud body 21 flushes, and promptly the junction of external toroidal ring 22 and outer shroud body 21 is not have the outside part of protruding.The axis x of external toroidal ring 22 and the axis y of outer shroud body 21 are overlapping.
In ring 1 and outer shroud 2 fixing by six screws 3, screw 3 cross-under in corresponding outer shroud connecting hole 24 and interior ring connecting hole 14, the sealing ring 17 on the interior ring 1 surround external toroidal ring 22 on the outer shroud 2 around, sealing effectiveness is better.Screw mandrel passage 16 in the air-cooled cover 12 and 25 alignment of the outer shroud circular hole in the outer shroud body 21, the axis d in the air-cooled cover 12 and the axis x of external toroidal ring 22 are overlapping.
In the present embodiment, the axis y of the axis t in the axis d in the air-cooled cover 12, the interior ring body 11, the axis x of external toroidal ring 22, outer shroud body 21, the axis of interior ring 1 and the axis of outer shroud 2 all are overlapped.
The air-cooled mechanism of screw mandrel in the present embodiment is mainly used in the high-speed, high precision lathe, during use, encircle in circular hole 15, screw mandrel passage 16 and the outer shroud circular hole 25 in screw mandrel 4 in this lathe is sleeved on, the axis d of the axis of screw mandrel 4 and air-cooled cover 12 is vertical, have certain clearance between screw mandrel 4 and the screw mandrel passage 16, the exhaust vent 13 in the air-cooled mechanism of screw mandrel is all aimed at screw mandrel 4.During lathe work, screw mandrel 4 high speed rotating, generally, the rotating speed of screw mandrel 4 forms a circle circulation more than 3000 rev/mins in the gap between screw mandrel 4 and screw mandrel passage 16, and meanwhile, the outer surface of screw mandrel 4 is because friction generates heat; And the air inlet 23 that air is input to the air-cooled mechanism of screw mandrel will be cooled off by appendix in the outside air source that is used to cool off, the cooling air enters the cold wind distribution cavity by air inlet 23, this cooling air distributes in the cold wind distribution cavity, at last from exhaust vent 13 outputs, be directly injected to screw mandrel 4 surfaces from the cooling air of exhaust vent 13 outputs, the cooling air has effectively been taken away the heat on screw mandrel 4 surfaces, reaches the purpose that screw mandrel 4 is lowered the temperature, and guarantees the precision of screw mandrel 4.
When machine tool motion, lathe PLC opens, and outside input source of the gas cools off by 13 pairs of screw mandrels 4 of exhaust vent, and when the lathe stop motion, lathe PLC closes air supply source and closes, and is very easy to use.
The structure of the air-cooled mechanism of screw mandrel in the present embodiment is very simple, only is made up of interior ring 1, outer shroud 2 and several screws 3, and production cost is low, and is easy to manufacture, simplified the structure of lathe greatly, reduced the manufacturing cost of lathe.The air-cooled mechanism of screw mandrel in the present embodiment is very good to the cooling effect of screw mandrel 4, from outside to inside screw mandrel 4 is cooled off, and is just in time consistent with the direction of transfer of screw mandrel 4 self heat, and good cooling results can effectively be guaranteed the precision of screw mandrel 4 in the running.Use the lathe of the air-cooled mechanism of screw mandrel in the present embodiment, can use the screw mandrel 4 of common non-hollow structure, the difficulty of processing of screw mandrel 4 reduces greatly, can further reduce the manufacturing cost of lathe.
In addition, need to prove, the specific embodiment described in this specification, its zero, the shape of parts, institute's title of being named etc. can be different, the above content described in this specification only is to the explanation of the utility model structure example.Allly conceive equivalence variation or the simple change that described structure, feature and principle are done, be included in the protection domain of the utility model patent according to the utility model patent.
Claims (5)
1. air-cooled mechanism of screw mandrel, it is characterized in that: it is by interior ring, outer shroud and several screws are formed, ring is made up of interior ring body and air-cooled cover in described, the ring body is a cirque structure in described, the center of ring body is provided with in one and encircles circular hole in described, be provided with the quantity interior ring connecting hole identical around this interior ring body with screw, described air-cooled cover is columnar structured, be provided with the screw mandrel passage in the described air-cooled cover, this screw mandrel passage is a cylindrical structural, the diameter of the interior ring circular hole in the diameter of described screw mandrel passage and the interior ring body is identical, the wall of described air-cooled cover is provided with the two circle exhaust vents that are arranged in circular configuration uniformly, the number of every circle exhaust vent is nine, and described exhaust vent is cylindrical structural, the axis of this exhaust vent all with the intersect vertical axis of air-cooled cover; Be arranged in the exhaust vent of same circle, the axes intersect of adjacent two exhaust vents, and the angle between the axis of these two adjacent exhaust vents is 40 degree; On the ring body, the interior ring circular hole in screw mandrel passage in this air-cooled cover and the interior ring body alignd in described air-cooled cover was fixed on, and the axis in axis in the described air-cooled cover and the interior ring body is overlapping; Described outer shroud is made up of outer shroud body and external toroidal ring, described outer shroud body is a cirque structure, the center of this outer shroud body is provided with an outer shroud circular hole, the diameter of the interior ring circular hole in the diameter of this outer shroud circular hole and the interior ring body is identical, be provided with shape around the described outer shroud body, the outer shroud connecting hole that quantity and position all are complementary with interior ring connecting hole, described external toroidal ring is columnar structured, the wall of this external toroidal ring is provided with an air inlet, described air inlet is a cylindrical structural, the size of this air inlet is greater than the size of exhaust vent, described external toroidal ring is fixed on the outer shroud body, the periphery of the outer wall of this external toroidal ring and outer shroud body flushes, and the axis of the axis of described external toroidal ring and outer shroud body is overlapping; Ring and outer shroud are fixed by several screws in described, described screw cross-under is in corresponding outer shroud connecting hole and interior ring connecting hole, screw mandrel passage in the described air-cooled cover and the alignment of the outer shroud circular hole in the outer shroud body, the axis in the described air-cooled cover and the axis of external toroidal ring are overlapping, and described interior ring body, air-cooled cover, outer shroud body and external toroidal ring surround the cold wind distribution cavity of a cirque structure.
2. the air-cooled mechanism of screw mandrel as claimed in claim 1 is characterized in that: the number of described screw is six.
3. the air-cooled mechanism of screw mandrel as claimed in claim 1 is characterized in that: described in the ring body around be provided with one the circle sealing ring, the sealing circle surround external toroidal ring around.
4. the air-cooled mechanism of screw mandrel as claimed in claim 1 is characterized in that: described outer shroud connecting hole is a counter bore structure.
5. the air-cooled mechanism of screw mandrel as claimed in claim 1 is characterized in that: alignment mutually between the circle of two in the described air-cooled cover exhaust vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220705118 CN203092253U (en) | 2012-12-19 | 2012-12-19 | Lead screw air cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220705118 CN203092253U (en) | 2012-12-19 | 2012-12-19 | Lead screw air cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203092253U true CN203092253U (en) | 2013-07-31 |
Family
ID=48843696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220705118 Withdrawn - After Issue CN203092253U (en) | 2012-12-19 | 2012-12-19 | Lead screw air cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203092253U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009170A (en) * | 2012-12-19 | 2013-04-03 | 杭州三拓精密机械有限公司 | Air cooling mechanism for screw rod |
| CN109307577A (en) * | 2018-08-24 | 2019-02-05 | 北京航空航天大学 | A kind of air-cooling apparatus for high-temperature vibrating test |
-
2012
- 2012-12-19 CN CN 201220705118 patent/CN203092253U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009170A (en) * | 2012-12-19 | 2013-04-03 | 杭州三拓精密机械有限公司 | Air cooling mechanism for screw rod |
| CN109307577A (en) * | 2018-08-24 | 2019-02-05 | 北京航空航天大学 | A kind of air-cooling apparatus for high-temperature vibrating test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130731 Effective date of abandoning: 20141217 |
|
| RGAV | Abandon patent right to avoid regrant |