CN206343721U - wire cutting guide wheel - Google Patents
wire cutting guide wheel Download PDFInfo
- Publication number
- CN206343721U CN206343721U CN201620655793.5U CN201620655793U CN206343721U CN 206343721 U CN206343721 U CN 206343721U CN 201620655793 U CN201620655793 U CN 201620655793U CN 206343721 U CN206343721 U CN 206343721U
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- Prior art keywords
- guide wheel
- annular
- bearing
- outer ring
- piece
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Abstract
The annular guide wheel piece that the wire cutting guide wheel that the utility model is provided includes guide wheel shaft, the annular bearing that guide wheel shaft outer ring is fixed and annular bearing outer ring are fixed.Guide wheel of the present utility model diameter under square one is bigger than the guide wheel of prior art；In operation, guide wheel shaft is fixed on lathe and not rotated, the inner ring of bearing is fixed on guide wheel shaft and also not rotated, bearing outer ring and guide wheel piece fixed thereon are rotated, so that the even tension of wire electrode is distributed on bearing, therefore, the service life of each guide wheel assemblies such as guide wheel shaft, bearing and guide wheel piece is considerably increased.Wire cutting guide wheel of the present utility model is easily installed, and cost is low.
Description
Technical field
The utility model belongs to line cutting technology field, is related to a kind of guide wheel for Wire EDM.
Background technology
Guide wheel is the important component used in electric spark linear cutting machine, and its quality directly influences wire electrode
The position stability and constancy of locus.But its working environment is again very severe, especially in high speed travelling wire lathe, wire
Speed is very high (8-12 meter per seconds), therefore the guide wheel of a diameter of 30 millimeter will at a high speed be revolved with 6000-8000 revs/min of speed
Turn, and because the reciprocal of wire electrode is used, guide wheel will be reversely rotated every half a minute.Therefore in process, guide wheel is easy
Impaired, service life is shorter.
Chinese patent ZL 97207000.1 discloses a kind of electric spark linear cutting machine sealing guide wheel assembly, with other
Prior art is the same, the guide wheel assembly of the patent be guide wheel in centre, guide wheel shaft is arranged on guide wheel two ends by guide wheel, bearing,
The bearing at two ends is separately mounted in respective wheel stand.This guide wheel assembly in process, guide wheel, guide wheel shaft, bearing
Inner ring rotates and bearing outer ring does not turn.Therefore, following technical problem can be produced：
1. guide wheel diameter is small, guide wheel rotating speed is high in the case of same Constant Linear Velocity, and bearing heating amount is big, guide wheel short life；
If 2. size has deviation to two wheel stands during fabrication, then be difficult to be co-axially mounted when mounted, two can be caused
Individual bearing is not coaxial, greatly shortens the service life of guide wheel bearing.
Utility model content
The purpose of this utility model is to make up above-mentioned the deficiencies in the prior art there is provided a kind of new wire cutting guide wheel,
Change the structure of existing guide wheel assembly, improve the service life of guide wheel, guide wheel shaft and bearing.
To achieve the above object, the utility model provides a kind of wire cutting guide wheel, and it includes：
Guide wheel shaft, for being installed on lathe, it has annular outer ring；
Annular bearing, is mutually fixed with the guide wheel shaft outer ring；
Annular guide wheel piece, is mutually fixed with the annular bearing outer ring, so that it rotates by axle of the guide wheel shaft, its outer ring
The guide part passed through with power supply polar filament.
Further, the annular bearing is interference fitted with guide wheel shaft outer ring, outside the annular guide wheel piece and annular bearing
Circle interference fit.
Further, the guide wheel shaft outer ring is provided with least two annular bearings side by side, and the annular guide wheel piece has
The inner cylinder for coating at least two annular bearings outer ring and the guide wheel piece body for being fixed on inner tank theca, the guide wheel piece body
Width be less than inner cylinder and its be located at inner cylinder centre position.
Further, the two ends inwall of the inner cylinder is respectively provided with locating part, and annular bearing is limited in into annular guide wheel piece
In inner cylinder.
Further, the locating part includes the jump-ring slot and jump ring that inner cylinder two ends inwall is each opened up.
Further, described guide wheel shaft one end is provided with the shaft shoulder, with against the side of the annular bearing inner ring；The guide wheel
The axle other end is provided with screwed hole, by lock screw against the opposite side of the annular bearing inner ring, makes the inner ring of annular bearing
It is fixed on guide wheel shaft.
Further, multiple lightening cores are offered on the annular lamina of the guide wheel piece body, to mitigate guide wheel weight, reduction
Rotary inertia.
Further, the guide part is the annular groove being opened on guide wheel piece body outer ring.
Further, the annular bearing is angular contact bearing or deep groove ball bearing.Wherein, angular contact bearing, which has, eliminates
The effect in gap.
The wire cutting guide wheel that the utility model is provided is due to the globality change in structure so that diameter ratio under square one
The guide wheel of prior art is big；In operation, guide wheel shaft is fixed on lathe and not rotated, and the inner ring of bearing is fixed on guide wheel shaft
Also do not rotate, bearing outer ring and guide wheel piece fixed thereon are rotated, so that the even tension of wire electrode is distributed on bearing, because
This, considerably increases the service life of each guide wheel assemblies such as guide wheel shaft, bearing and guide wheel piece.Wire cutting guide wheel of the present utility model
It is easily installed, cost is low.
Brief description of the drawings
For that can become apparent from understanding the purpose of this utility model, feature and advantage, below with reference to accompanying drawing to the utility model
Preferred embodiment be described in detail, wherein：
Fig. 1 is the sectional view of the utility model first embodiment guide wheel；
Fig. 2 is the structure decomposition figure of the utility model second embodiment guide wheel；
Fig. 3 is the axial schematic diagram of the utility model second embodiment guide wheel；
Fig. 4 is the sectional view of the utility model second embodiment guide wheel.
Embodiment
First embodiment
Referring to Fig. 1, the guide wheel of the present embodiment is used for Wire EDM, it includes the first guide wheel shaft 11, first annular
Bearing 12 and first annular guide wheel piece 13.First guide wheel shaft 11 is used to whole guide wheel being installed on lathe (left end in figure), its
With annular outer ring, the outer ring of first annular bearing 12 and the first guide wheel shaft 11 is mutually fixed, first annular guide wheel piece 13 and first
The outer ring of annular bearing 12 is mutually fixed, so that first annular guide wheel piece 13 is rotated with the first guide wheel shaft 11 for axle, it is first annular to lead
Take turns the first guide part 131 that there is power supply polar filament (such as molybdenum filament) to pass through for the outer ring of piece 13.
The guide wheel of the present embodiment is in operation, and the first guide wheel shaft 11, which is fixed on lathe, not to be rotated, first annular axle
The inner ring for holding 12 is fixed on the first guide wheel shaft 11 and also not rotated, the first annular outer ring of bearing 12 and fixed thereon first annular
Guide wheel piece 13 is rotated, so that the even tension of wire electrode is distributed on first annular bearing 12, therefore, considerably increases guide wheel
The service life of each guide wheel assemblies such as axle, bearing and guide wheel piece.
Second embodiment
Please refer to Fig. 2 to Fig. 4, the guide wheel of the present embodiment include the second guide wheel shaft 21, the second annular bearing 22/23 with
And the second annular guide wheel piece 24.Compared with first embodiment, embodiment adds an annular bearing, an axle can be shared
Born power and loss, the further service life for improving bearing is held, the stability of guide wheel rotation can also be improved.Its
In, the second annular guide wheel piece 24 has the inner cylinder of two outer rings of the second annular bearing 22/23 of cladding, as illustrated, inner cylinder is in axle
The outer ring of two the second annular bearings is covered upwards, and the second annular guide wheel piece 24 also has the guide wheel piece for being fixed on inner tank theca
Body, piece annular in shape, the width (in axial direction length) of the guide wheel piece body is less than inner cylinder and it is located at the interposition of inner cylinder
Put, so that guide wheel piece body is located at the centre position of two the second annular bearings, make uniform force.In other embodiments,
Second annular bearing can also increase number, and two of the present embodiment have been enough to realize and share stress, improve guide wheel spin stabilization
The purpose of property.
In practical application, in order to which the inner ring of the second annular bearing is fixed on the second guide wheel shaft, by the second annular guide wheel
Piece is fixed on the outer ring of the second annular bearing, can take various ways.In the present embodiment, the inner ring of the second annular bearing with
Second guide wheel shaft outer ring is interference fitted, and the inner cylinder of the second annular guide wheel piece and the second annular bearing outer ring are interference fitted, so that its
It is fixed together two-by-two.
In order to further prevent axial displacement mutual between guide wheel shaft, bearing and guide wheel piece, the present embodiment passes through following
Mode carries out spacing to bearing and guide wheel piece respectively：
1. set shaft shoulder in one end (in figure left side) of the second guide wheel shaft 21, with against the inner ring one of the second annular bearing 22
Side；The other end (right side in figure) of second guide wheel shaft 21 is threaded hole 211, passes through lock screw 26 and pad 27 against second
The opposite side of the inner ring of annular bearing 23, so that by the inner ring of the second annular bearing, i.e., whole bearing assembly is spacing to be fixed on second
On guide wheel shaft.In use, once the second annular bearing weares and teares, lock screw 26 can be tightened to eliminate due to Bearing Grinding
The gap damaged and produced.
2. respectively opening up annular spring groove 241 on the two ends inwall of the second annular inner cylinder of guide wheel piece 24, and pass through two cards
The outer ring of second annular bearing is limited in inner cylinder by spring 25, so that between avoiding the second annular guide wheel piece and the second annular bearing
Mutual displacement, realization prevent the mutually axially displacement between guide wheel shaft, bearing and guide wheel piece.
In other embodiments, bearing and guide wheel piece can be carried out by other fixtures, locating part spacing.
In the present embodiment, the second annular outer ring of guide wheel piece 24 also opens up annular groove, the guide part passed through as power supply polar filament,
In other embodiment, guide part can be the structure that other power supply polar filaments pass through.In order to mitigate the weight of whole guide wheel, so as to drop
Multiple lightening cores are offered on low rotary inertia, the annular lamina of the second annular guide wheel piece 24 of the present embodiment, the lightening core can be with
It is any shape, as long as ensuring the intensity of guide wheel piece.
In the present embodiment, the second annular bearing is angular contact bearing or deep groove ball bearing.It is preferred that angular contact bearing, with disappearing
Except the effect in gap.
In practical application, the diameter of the second annular guide wheel piece can be 30-120mm, and the present embodiment chooses 60mm or 90mm.
Claims (8)
1. a kind of wire cutting guide wheel, it is characterised in that it includes：
Guide wheel shaft, for being installed on lathe, it has annular outer ring；
Annular bearing, is all fixed with least two annular bearings side by side and mutually, annular guide wheel piece with the guide wheel shaft outer ring
With coating the inner cylinder of at least two annular bearings outer ring and be fixed on the guide wheel piece body of inner tank theca, the guide wheel piece
The width of body be less than inner cylinder and its be located at inner cylinder centre position；
Annular guide wheel piece, is mutually fixed with the annular bearing outer ring, so that it rotates by axle of the guide wheel shaft, its outer ring has
The guide part that polar filament of powering passes through.
2. wire cutting guide wheel according to claim 1, it is characterised in that：The annular bearing is matched somebody with somebody with the interference of guide wheel shaft outer ring
Close, the annular guide wheel piece is interference fitted with annular bearing outer ring.
3. wire cutting guide wheel according to claim 2, it is characterised in that：The two ends inwall of the inner cylinder is respectively provided with spacing
Part, annular bearing is limited in annular guide wheel piece inner cylinder.
4. wire cutting guide wheel according to claim 3, it is characterised in that：The locating part includes inner cylinder two ends inwall
The jump-ring slot and jump ring each opened up.
5. wire cutting guide wheel according to claim 3, it is characterised in that：Described guide wheel shaft one end be provided with the shaft shoulder, with against
The side of the annular bearing inner ring；The guide wheel shaft other end is provided with screwed hole, by lock screw against the annular shaft
The opposite side of inner ring is held, the inner ring of annular bearing is fixed on guide wheel shaft.
6. the wire cutting guide wheel according to any one of claim 1 to 5, it is characterised in that：The ring-type of the guide wheel piece body
Multiple lightening cores are offered on piece.
7. wire cutting guide wheel according to claim 6, it is characterised in that：The guide part is external to be opened in guide wheel piece sheet
Annular groove on circle.
8. the wire cutting guide wheel according to any one of claim 1 to 5, it is characterised in that：The annular bearing is angular contact
Bearing or deep groove ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620655793.5U CN206343721U (en) | 2016-06-28 | 2016-06-28 | wire cutting guide wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620655793.5U CN206343721U (en) | 2016-06-28 | 2016-06-28 | wire cutting guide wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206343721U true CN206343721U (en) | 2017-07-21 |
Family
ID=59320555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620655793.5U Active CN206343721U (en) | 2016-06-28 | 2016-06-28 | wire cutting guide wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206343721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538093A (en) * | 2016-06-28 | 2018-01-05 | 上海特略精密数控机床有限公司 | Wire cutting guide wheel |
-
2016
- 2016-06-28 CN CN201620655793.5U patent/CN206343721U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538093A (en) * | 2016-06-28 | 2018-01-05 | 上海特略精密数控机床有限公司 | Wire cutting guide wheel |
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| GR01 | Patent grant |