CN202309404U - Dedicated push-type broach of pressure-type motor rotor - Google Patents
Dedicated push-type broach of pressure-type motor rotor Download PDFInfo
- Publication number
- CN202309404U CN202309404U CN2011204002385U CN201120400238U CN202309404U CN 202309404 U CN202309404 U CN 202309404U CN 2011204002385 U CN2011204002385 U CN 2011204002385U CN 201120400238 U CN201120400238 U CN 201120400238U CN 202309404 U CN202309404 U CN 202309404U
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- type broach
- push
- type
- push broach
- several
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model discloses a dedicated push-type broach of a pressure-type motor rotor. The dedicated push-type broach of the pressure-type motor rotor is characterized in that the lower end of the dedicated push-type broach is provided with a guiding cylinder, the middle part of the dedicated push-type broach is provided with multiple steps which are provided with conical inclined surfaces, and each conical inclined surface is provided with an annular groove which is used for containing metal cuttings; the side wall of an outer circle of each step is vertical, the side walls of the next steps are provided with several small notches which are uniformly distributed along the circumference, thus the processing cuttings of the push-type broach can be cut into several sections and can return back to the annular groove, and an annular bruising inner hole can not appear; the several uppermost steps on the push-type broach are not provided with the small notches; and the outer diameter of the upper section of the steps is gradually enlarged than that of the lower section of the steps, and thus each step is enabled to be subjected to the cutting; and the top end of the uppermost cylinder is provided with a chamfer which is used as a punching and forcing part. A cutting step part can also be plated and coated with a diamond-like carbon plating layer, the HD (Hardness Degree) can be 2000, and the service life can be prolonged by 4 times. According to the dedicated push-type broach of the pressure-type motor rotor, disclosed by the utility model, a finish machining can be finished when the push-type broach passes through the inner hole of the rotor for one time, the consumed time during the whole machining process is 1 second, the volume of production is large, the accuracy is good, and the service life is long.
Description
Technical field
The invention belongs to the machine tools field, especially relate to the special-purpose push broach of a kind of pressure type rotor.
Background technology
Rotor is pressed folded processing by silicon steel sheet, and the mode that turning is used in its endoporus fine finishining usually wastes time and energy, and inefficiency, precision are difficult to again guarantee that homogeneity is poor; The processing of also useful broaching tool, crudy has raising slightly, but acquisition expenses is expensive, and the processing endoporus soon must not, long 70～80 centimeters of broaching tool, elongated crisp firmly, firmly have slightly and crookedly just rupture.The endoporus processing cost of rotor is high always.Our company gropes repeatedly, repeatedly improves in practice for many years, has solved this difficult problem finally, and therefore this case takes place.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned prior art, provide a kind of pressure type rotor special-purpose push broach, production efficiency improves more than ten times, and precision is good, simple to operate, manufacturing cost is economized.
To achieve these goals, the technical scheme of the present invention's employing is following:
The special-purpose push broach of pressure type rotor, it is cylindric that profile is, and the lower end is provided with the guide cylinder of band tapering, and the endoporus to be processed that inserts rotor before the processing plays fixation;
Be provided with the step of wearing the circular cone inclined-plane on several in the middle of the push broach, taper seat and horizontal plane angle θ are 50
0～60
0Between; The ring type groove that is provided with above the taper seat holds borings and uses;
Step cylindrical sidewall is vertical, and step lower surface and sidewall angle are not more than 90 degree, are the knife edge parts of cutting metal;
Be provided with several facet breach that are uniformly distributed along the circumference on following several roads step sidewall; And the facet gap position of each step is not vertical vertically corresponding; But departing from the arrangement of staggering each other of certain angle, the benefit that is provided with like this is: preceding road step does not have the part metals of excision in road, back step, being bound to excised; Because the existence of facet breach, the processing smear metal meeting of push broach is broken in several sections setback ring type grooves, can not form round smear metal scratch endoporus, influences fineness.Uppermost several step of push broach is not provided with the facet breach, guarantees that the deviation in roundness error of last one cut narrows down in the scope of technological requirement.
The external diameter of upper track step progressively increases than the external diameter of following road step, and assurance per pass step is all participated in cutting, reasonably shares total allowance of rotor inner hole on each road step, guarantees that cutting is smooth and improves machining accuracy.
Be cylinder topmost, external diameter is than the little 0.02-0.1 millimeter of step, and there is chamfering on the top, is the punching press part of the force.
Can also be coated with DLC coating in the plating of cutting step part, HD hardness can reach 2000, and cutting precision is higher, increases the service life more than 4 times.
The present invention is simple to operate, be skillfully constructed, and need only apply stamping press on the top, lets the special-purpose push broach of pressure type rotor through rotor inner hole once; Can accomplish fine finishining; Whole machining process process second only consuming time, improve more than ten times of effect, fast 5 times than broaching tool than turning; And the deviation in roundness in hole is little, fineness good, and precision is high.Push broach length is between 15～20 centimeters, and shorter more than 4 times than broaching tool, manufacturing cost is merely 1/5th of broaching tool acquisition cost, and frangible not, long service life.
Description of drawings
Fig. 1 is the stereogram of punching type reamer;
Fig. 2 is the front view of punching type reamer;
Fig. 3 is the cutaway view along A-A line among Fig. 2;
Fig. 4 is along the cutaway view of B-B line among Fig. 2 (in order to see the facet breach clearly, having done amplification).
Description of reference numerals:
1 guide cylinder, 2 steps, 21 circular cone inclined-planes, 22 plane breach, 3 punching press cylinders, θ taper seat and horizontal plane angle.
Embodiment
Through accompanying drawing and embodiment the present invention is done further to set forth in detail below.
Embodiment
The special-purpose push broach structure of pressure type rotor such as Fig. 1 are to shown in Figure 4; Present embodiment is provided with 14 road steps 2 altogether; 12 following road steps 2 respectively have 3 facet breach 22, are distributed on step 2 outer circumferential walls, and uppermost two road steps 2 are not provided with the facet breach.
The external diameter of epimere step progressively increases than the external diameter of hypomere step.Can compile into same group to 2～3 adjacent steps, the rank of whenever organizing a performance keep same external diameter, and each is organized external diameter and progressively increases; Assurance per pass step is all participated in cutting, reasonably shares total allowance of rotor inner hole on each road step, guarantees that cutting is smooth and improves machining accuracy.
Launch to set forth through use below; Insert the guide cylinder 1 of special reamer in the rotor endoporus to be processed, apply stamping press, let special reamer pass through the rotor endoporus once on the top of punching press cylinder 3; Fine finishining has just been accomplished, and machining accuracy is guaranteed by the precision of special-purpose push broach.
165 millimeters of the push broach length overalls of present embodiment, taper seat and horizontal plane angle θ are 55 degree, the maximum outside diameter of step 2 is 15.955 millimeters.Rotor is series of products, and the rotor of different size need be equipped with the push broach of different thicknesses, after with the passing of time particle size push broach use scraps, can also be processed into the push broach of thin footpath again, saves Hardmetal materials.
The above is merely one embodiment of the present of invention, is not the restriction to this case design, and all equivalent variations of doing according to the design key of this case for example increase and decrease numbers of steps, small gap quantity or circular cone gradient etc., all fall into the protection range of this case.
Claims (3)
1. the special-purpose push broach of pressure type rotor, it is characterized in that: profile is cylindric, and the lower end is provided with the guide cylinder of band tapering;
The push broach stage casing is provided with the step of wearing the circular cone inclined-plane on several, is provided with the ring type groove above the per pass taper seat; Step cylindrical sidewall is vertical, and step lower surface and sidewall angle are not more than 90 degree; Below several roads step sidewall on be provided with several facet breach that are uniformly distributed along the circumference, and the facet gap position of each step is vertical corresponding vertically, but departs from the arrangement of staggering each other of certain angle; Uppermost several step of push broach is not provided with the facet breach;
The upper end is a cylinder, and external diameter is than the little 0.2-1 millimeter of step.
2. the special-purpose push broach of pressure type rotor as claimed in claim 1, it is characterized in that: described circular cone inclined-plane and horizontal plane angle θ are 50
0～60
0Between.
3. the special-purpose push broach of pressure type rotor as claimed in claim 1, it is characterized in that: described push broach cylinder top is provided with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204002385U CN202309404U (en) | 2011-10-20 | 2011-10-20 | Dedicated push-type broach of pressure-type motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204002385U CN202309404U (en) | 2011-10-20 | 2011-10-20 | Dedicated push-type broach of pressure-type motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202309404U true CN202309404U (en) | 2012-07-04 |
Family
ID=46378215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204002385U Expired - Fee Related CN202309404U (en) | 2011-10-20 | 2011-10-20 | Dedicated push-type broach of pressure-type motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202309404U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386725A (en) * | 2011-10-20 | 2012-03-21 | 绍兴市海宏电器有限公司 | Pressure type special push broach for motor rotor |
| CN111112718A (en) * | 2018-10-31 | 2020-05-08 | 绵阳海立电器有限公司 | Processing method of oil supply structure of upper cylinder cover of compressor and oil supply mechanism |
| CN111788759A (en) * | 2018-03-01 | 2020-10-16 | 蒂森克虏伯股份公司 | Rotor, asynchronous machine and use of a pressure plate |
-
2011
- 2011-10-20 CN CN2011204002385U patent/CN202309404U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386725A (en) * | 2011-10-20 | 2012-03-21 | 绍兴市海宏电器有限公司 | Pressure type special push broach for motor rotor |
| CN111788759A (en) * | 2018-03-01 | 2020-10-16 | 蒂森克虏伯股份公司 | Rotor, asynchronous machine and use of a pressure plate |
| CN111112718A (en) * | 2018-10-31 | 2020-05-08 | 绵阳海立电器有限公司 | Processing method of oil supply structure of upper cylinder cover of compressor and oil supply mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20141020 |
|
| EXPY | Termination of patent right or utility model |