CN202668270U - Big taper hole main shaft excircle finish machining device of large gear milling machine - Google Patents
Big taper hole main shaft excircle finish machining device of large gear milling machine Download PDFInfo
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- CN202668270U CN202668270U CN201220166317.9U CN201220166317U CN202668270U CN 202668270 U CN202668270 U CN 202668270U CN 201220166317 U CN201220166317 U CN 201220166317U CN 202668270 U CN202668270 U CN 202668270U
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- main shaft
- washer
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- shaft body
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Abstract
The utility model relates to a big taper hole main shaft excircle finish machining device of a large milling machine. The big taper hole main shaft excircle finish machining device comprises a core shaft body, a plug, a taper plate, a taper sleeve, a cone face washer, a spherical washer, a round nut, a bolt and a washer, and is characterized in that the taper plate is arranged on an outer circumferential face on one end of the core shaft body. A shaft plug is arranged on an outer side of the end portion of the core shaft body. The taper plate, the plug and the core shaft body are welded to form a whole, and the taper plate and the plug are connected with a main shaft through the bolt. The nut, the spherical washer, the cone face washer and the taper sleeve are sequentially arranged on the other end of the core shaft body from the end portion of the core shaft body to the middle in a penetrating mode. The nut is connected with outer threads of the core shaft body. A spherical face of the spherical washer is contiguous to the inner side cone face of the cone face washer. A cylindrical end face of the cone face washer is contiguous to a cylindrical end face of the taper sleeve. A cone face of the taper sleeve abuts against a chamfer face of an inner hole of the main shaft. The big taper hole main shaft excircle finish machining device has the advantages of being simple in structure, easy to manufacture, convenient to use, safe, and reliable, guaranteeing precision requirements of the main shaft and machining quality, shortening machining working hours, and improving production efficiency.
Description
Technical field
The utility model belongs to field of machining, particularly relates to the large taper hole main shaft of a kind of large-scale tooth milling machine cylindrical precise machining device.
Background technology
Main shaft is the key component of all lathes, and the main shaft of tooth milling machine is no exception.The designing requirement of main shaft is very strict, dimensional accuracy or taper hole and outer cone and all very high with roughness and the form and position tolerance of the cylindrical that fills bearing.How the crudy of main shaft will directly affect the precision of lathe, even cause lathe to exceed standard and scrap.Therefore the processing of main shaft is very crucial, particularly the fine finishining of main shaft cylindrical is particularly important.
At present, the precise machining device of main shaft cylindrical mainly adopts tapering stepped core axle or top greatly.Because the tapering mandrel is need classification to make according to the dimension precision requirement of endoporus, only does a mandrel and can't guarantee processing request, therefore needs to make several mandrels.In addition, the taper core shaft length lengthens along with the length of workpiece, and product specification strengthens brings main axis length to increase the weight increase, even makes the equipment of factory can't satisfy processing request at all; The increase of hole dimension does not have corresponding large top coupling yet in the mandrel.Therefore guarantee that the accurate to dimension of main shaft and form and position tolerance have great difficulty, not only complex operation, production efficiency are low, but also have potential safety hazard.Particularly along with the demand of the industries such as military project, wind-powered electricity generation, mine, gear machine must be to large-scale, accurate, high speed aspect development.The high accuracy of lathe, maximization, the raising that brings size, weight increasing and the accuracy class of part brings inconvenience to processing; The heavy parts particularly machined of important parts, key component and critical process etc. just is subject to serious challenge.Therefore, how the applicating new process new technology to carry out technological innovation just extremely urgent.
Summary of the invention
The utility model provides the large taper hole main shaft of a kind of large-scale tooth milling machine cylindrical precise machining device for solving the technical problem that exists in the known technology, and this device has guaranteed the crudy of main shaft, and has reduced machining period, has improved production efficiency.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
The large taper hole main shaft of a kind of large-scale tooth milling machine cylindrical precise machining device comprises mandrel body, stifled, cone dish, tapered sleeve, taper faced washer, spheric washer, round nut, bolt and packing ring.It is characterized in that: the outer circumference surface of an end of mandrel body is provided with the cone dish, and it is stifled that the outside, this end also is provided with axle, and the cone dish, stifled and the mandrel body is integrally welded, and is bolted with main shaft; On the other end of mandrel body, be coated with successively nut, spheric washer, taper faced washer and tapered sleeve to the middle part from the mandrel end of body, nut is connected with the external screw thread of mandrel body, the inboard conical surface adjacency of the sphere of spheric washer and taper faced washer, the cylinder end face of taper faced washer and the cylinder end surfaces of tapered sleeve, the conical surface of tapered sleeve props up the inner bore chamfering face of main shaft.
Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, during operation, processed main shaft is contained on the mandrel body, first take the taper hole conical surface of processed main shaft one end and taper hole end face as benchmark, utilize the screw of processed main shaft end face, use bolt, packing ring that the cone dish on the mandrel and spindle taper hole are compressed; Take the inner bore chamfering face of the processed main shaft other end as benchmark, by the chamfering locking with the tapered sleeve on the mandrel body and inner hole of spindle of taper faced washer, spheric washer and round nut, this device and processed main shaft are become one again.Adopt no matter dimensional accuracy or form and position tolerance all can reach requirement of this device fine finishining main shaft cylindrical, and then guaranteed the crudy of main shaft.This device not only simple in structure, be easy to make, esy to use, safe and reliable, also shortened machining period, increase substantially crudy and productivity ratio, the increase economic benefit cuts down finished cost.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the main shaft schematic diagram that adopts the utility model processing.
Among the figure: 1, bolt; 2, packing ring; 3, axle is stifled; 4, cone dish; 5, mandrel body; 6, main shaft; 7, tapered sleeve; 8, taper faced washer; 9, spheric washer; 10, round nut.
The specific embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
See also Fig. 1, the large taper hole main shaft of large-scale tooth milling machine cylindrical precise machining device.Processed main shaft is installed on the mandrel body 5, and the outer circumference surface of an end of mandrel body 5 is provided with cone dish 4, and this outside, end also is provided with axle and blocks up 3, and cone dish 4, axle stifled 3 and mandrel body 5 are integrally welded, and is connected with main shaft 6 by bolt 1, packing ring 2; Be coated with successively round nut 10, spheric washer 9, taper faced washer 8 and tapered sleeve 7 to the middle part from the mandrel end of body on the other end of mandrel body 5, nut 10 is connected with the external screw thread of mandrel body 5, the inboard conical surface adjacency of the sphere of spheric washer 9 and taper faced washer 8, the cylinder end face of taper faced washer 8 and the cylinder end surfaces of tapered sleeve 7, the conical surface of tapered sleeve 7 props up the inner bore chamfering face of main shaft 6.
See also Fig. 2, Fig. 2 is for adopting the main shaft 6 of this device processing, and its key dimension, tolerance and required precision are that unit is mm:1, material: 38CrMoAlA; Heat treatment: T275 D0.5-900 (except the screw thread); 2, size: maximum outside diameter φ 280; Maximum taper hole diameter phi 203.2 tapering 1:20; Minimum diameter of bore φ 110,2 * 30 ° of chamferings, roughness 0.4; Overall length 732; The large end size of outer cone φ 178; Tapering 1:20; Dress bearing top circle φ 240; The main shaft both ends of the surface have respectively 6 screw holes; 3 require: take two places dress bearing top circle as benchmark A and B; Roughness 0.8; With bearing match grinding gap 0.003-0.008; Circularity, axiality, the depth of parallelism are respectively: 0.001, φ 0.002,0.002; Outer cone and taper hole roughness 0.4; Beat 0.002 with benchmark A and B, axiality φ 0.002, hold end face and benchmark A and the B perpendicularity φ 0.002 of size greatly.
Operating principle of the present utility model is:
The one, for weight reduction, the mandrel body 5 among Fig. 1 is made blind hole end face welding axle stifled 3, and that the mandrel body is become is hollow, and cone dish 4 makes it to become one with the method for mandrel body by welding; The 2nd, the processed main shaft 6 shown in Fig. 2 is contained on the mandrel body 5, at first take the taper hole conical surface of processed main shaft 6 one ends and taper hole end face as benchmark, utilize the screw of processed main shaft end face, use bolt 1, packing ring 2 that the cone dish 4 on the mandrel and spindle taper hole are compressed; Then take processed main shaft 6 other end inner bore chamfering faces as benchmark, adopt taper faced washer 8, spheric washer 9 and round nut 10 with the chamfering locking of tapered sleeve 7 with the inner hole of spindle of mandrel body 5.This sample device and processed main shaft just become one.Designing requirement and the crudy of processed main shaft cylindrical have just been guaranteed at last by this high-precision centre bore in device two ends.Received good effect through no matter checking dimensional accuracy or form and position tolerance all can reach requirement.
Although the above is described preferred embodiment of the present utility model by reference to the accompanying drawings; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away from the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection domain of the present utility model.
Claims (1)
1. the large taper hole main shaft of large-scale tooth milling machine cylindrical precise machining device, comprise mandrel body, stifled, cone dish, tapered sleeve, taper faced washer, spheric washer, round nut, bolt and packing ring, it is characterized in that: the outer circumference surface of an end of mandrel body is provided with the cone dish, it is stifled that this outside, end also is provided with axle, cone dish, axle block up with the mandrel body integrally welded, and are bolted with main shaft; On the other end of mandrel body, be coated with successively nut, spheric washer, taper faced washer and tapered sleeve to the middle part from the mandrel end of body, nut is connected with the external screw thread of mandrel body, the inboard conical surface adjacency of the sphere of spheric washer and taper faced washer, the cylinder end face of taper faced washer and the cylinder end surfaces of tapered sleeve, the conical surface of tapered sleeve props up the inner bore chamfering face of main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220166317.9U CN202668270U (en) | 2012-04-19 | 2012-04-19 | Big taper hole main shaft excircle finish machining device of large gear milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220166317.9U CN202668270U (en) | 2012-04-19 | 2012-04-19 | Big taper hole main shaft excircle finish machining device of large gear milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202668270U true CN202668270U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220166317.9U Withdrawn - After Issue CN202668270U (en) | 2012-04-19 | 2012-04-19 | Big taper hole main shaft excircle finish machining device of large gear milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202668270U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615559A (en) * | 2012-04-19 | 2012-08-01 | 天津第一机床总厂 | Fine machining device and machining method of excircle of big tapered-hole spindle of large gear milling machine |
-
2012
- 2012-04-19 CN CN201220166317.9U patent/CN202668270U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615559A (en) * | 2012-04-19 | 2012-08-01 | 天津第一机床总厂 | Fine machining device and machining method of excircle of big tapered-hole spindle of large gear milling machine |
| CN102615559B (en) * | 2012-04-19 | 2014-03-26 | 天津第一机床总厂 | Fine machining device and machining method of excircle of big tapered-hole spindle of large gear milling machine |
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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 | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130116 Effective date of abandoning: 20140326 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130116 Effective date of abandoning: 20140326 |