CN207642483U - A kind of wire-drawing die rotation self-centering fixture - Google Patents
A kind of wire-drawing die rotation self-centering fixture Download PDFInfo
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- CN207642483U CN207642483U CN201721853588.0U CN201721853588U CN207642483U CN 207642483 U CN207642483 U CN 207642483U CN 201721853588 U CN201721853588 U CN 201721853588U CN 207642483 U CN207642483 U CN 207642483U
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Abstract
The utility model discloses a kind of wire-drawing dies to rotate self-centering fixture, including live spindle, live spindle include upper spindle nose and lower shaft portion.Upper spindle nose is equipped with circular in cross-section, the column chamber of open top, column intracavitary is equipped with inner sleeve, inner sleeve includes cylindrical barrel and the cylinder bottom with opening, positioning sleeve is equipped in inner sleeve, positioning sleeve includes cylindrical barrel, cylinder bottom and the die holder at the top of barrel, the cylinder bottom of positioning sleeve is mutually fixed after being placed in the opening of inner sleeve by locating pin and column bottom of chamber portion, it is arranged with spring on the barrel of positioning sleeve, spring is between the die holder of positioning sleeve and the cylinder bottom of inner sleeve, inside being sleeved on column intracavitary can move up and down, the round tube wall top of inner sleeve has been distributed uniformly and circumferentially a circle radial hole, steel ball is movably installed in radial hole, the upper inside wall of column chamber is equipped with the rounding conical surface.Lower shaft portion is mounted on rotating mechanism.The utility model realizes the quick-clamping and automatic alignment function of wire-drawing die, and it is high to repeat concentric locating precision.
Description
Technical field
The utility model is related to a kind of wire-drawing dies to rotate self-centering fixture, belong to mold resetting equipment and technology neck
Domain.
Background technology
Wire-drawing die is the important tool of draw metal wire rod, and shape is oblate cylinder.Due to die channel and outer circle
Concentricity require it is very high, especially for small-bore wire-drawing die, therefore needed in wire-drawing die laser boring process
Quickly centering positioning is carried out to wire-drawing die outer circle.
Common installation way is three-jaw self-centering clamping.But after using scroll chuck to clamp, die channel and three-jaw
Repetition concentric locating precision between the claw of chuck is not high, and error is usually in 0.05mm or so, even if taking three-jaw oblique pull column
Chuck repeats concentric locating error also in 0.03mm or so, cannot be satisfied accurate wire-drawing die high-volume high-precision process requirements.
Other rack-and-pinion and slide block type fixture, complicated in mechanical structure often will produce unbalance loading during power transmission, repeat concentric
The process requirements of die channel are also not achieved in positioning accuracy.
Utility model content
The purpose of this utility model is to provide a kind of wire-drawing dies to rotate self-centering fixture, realizes wire-drawing die
Quick-clamping and automatic alignment function repeat concentric locating error and are less than 0.01mm, and it is high-precision to meet accurate wire-drawing die high-volume
Spend process requirements.
To achieve the goals above, the utility model uses following technical scheme：
A kind of wire-drawing die rotation self-centering fixture, it is characterised in that：It includes live spindle, and live spindle includes being connected
Upper spindle nose and lower shaft portion, wherein：Upper spindle nose is equipped with the column chamber of circular in cross-section, open top, and column intracavitary is equipped with
Inner sleeve, inner sleeve include cylindrical barrel and the cylinder bottom with opening, are equipped with positioning sleeve in inner sleeve, positioning sleeve includes cylindrical tube
Wall, cylinder bottom and the die holder at the top of barrel, the cylinder bottom of positioning sleeve be placed in the opening of inner sleeve after by locating pin and column chamber
Bottom is mutually fixed, and spring is arranged on the barrel of positioning sleeve, and spring is between the die holder of positioning sleeve and the cylinder bottom of inner sleeve, inner sleeve
It can move up and down in column intracavitary, the round tube wall top of inner sleeve has been distributed uniformly and circumferentially a circle radial hole, radial
Steel ball is movably installed in hole, the upper inside wall of column chamber is equipped with the rounding conical surface；Lower shaft portion is mounted on rotating mechanism.
The utility model has the advantages that：
The utility model realizes the fast of wire-drawing die in such a way that steel ball and rounding cone match rotate clamping automatically
Quick-mounting presss from both sides and the function of automatic alignment, self-centering efficient, repeats concentric locating error and is less than 0.01mm, can meet accurate wire drawing
Mold laser boring processing demand, while the utility model have it is compact-sized, it is small, it is light-weight, securely and reliably, be convenient for
Operation, it is easy to maintain the advantages that.
Description of the drawings
Fig. 1 is longitudinal schematic cross-sectional view of the utility model wire-drawing die rotation self-centering fixture.
Fig. 2 is the enlarged diagram of upper spindle nose.
Specific implementation mode
As depicted in figs. 1 and 2, the utility model wire-drawing die rotation self-centering fixture includes live spindle 7, live spindle
7 include connected upper spindle nose 72 and lower shaft portion 71, wherein：Upper spindle nose 72 is equipped with the column of circular in cross-section, open top
Chamber 73, column chamber 73 is interior to be equipped with inner sleeve 3, and inner sleeve 3 includes cylindrical barrel 31 and the cylinder bottom 32 with opening, is equipped in inner sleeve 3
Positioning sleeve 4, positioning sleeve 4 include cylindrical barrel 41, the cylinder bottom 42 with location hole and the die holder 43 set on 41 top of barrel, are determined
Position set 4 cylinder bottom 42 be placed in the opening of inner sleeve 3 after by (location hole of the locating pin 6 from the cylinder bottom 42 of positioning sleeve 4 of locating pin 6
Penetrate) it is mutually fixed with 73 bottom of column chamber, spring 5, die holder of the spring 5 between positioning sleeve 4 are arranged on the barrel 41 of positioning sleeve 4
Between 43 and the cylinder bottom 32 of inner sleeve 3, inner sleeve 3, can be along column chamber 73 in column chamber 73 under the compression of spring 5 and rebound effect
Wall moves up and down, and 31 top of round tube wall of inner sleeve 3 has been distributed uniformly and circumferentially the equal-sized several radial directions of a circle
Hole, is movably installed with steel ball 2 in radial hole, and the upper inside wall of column chamber 73 is equipped with the rounding conical surface 74, and (upper port is big, lower port is small
Shape)；Lower shaft portion 71 is mounted on rotating mechanism.
In actual design, the opening diameter on the cylinder bottom 32 of inner sleeve 3 is more than 42 outer diameter of cylinder bottom of positioning sleeve 4, so that fixed
The cylinder bottom 42 and 73 bottom of column chamber of upper spindle nose 72 of position set 4 are in direct contact, the cylinder bottom 42 of positioning sleeve 4 and the cylinder bottom 32 of inner sleeve 3
It does not contact, 31 height of barrel of inner sleeve 3 is more than 41 height of barrel of positioning sleeve 4.
Such as Fig. 2, the top of inner sleeve 3 is connected with the housing 1 for covering 72 top of upper spindle nose and side wall.
In actual design, the rounding conical surface 74 and the inner sleeve 3 of live spindle 7 are coaxially disposed, that is, are arranged concentrically, have high
Concentricity, the axis perpendicular of the upper surface of the die holder 43 of positioning sleeve 4 and the rounding conical surface 74 of live spindle 7, have it is higher
Verticality, wherein：Under acting in opposition of the inner sleeve 3 in spring 5, bottom 32 moves downwardly to the column chamber with upper spindle nose 72
When 73 bottom connections touch, the steel ball 2 in inner sleeve 3 is located at the bottom of the rounding conical surface 74, that is, the lower port for being located at inverted cone face 74 is (small
Mouthful) height.
Such as figure, 31 thickness of barrel of inner sleeve 3 is slightly less than the diameter of steel ball 2, so that a part for steel ball 2 can expose inner sleeve 3
Barrel 31 except, steel ball 2 can in radial hole horizontal anomalous movement, preferably, radial hole slightly tilts so that steel ball 2 always keep to
The trend of 31 movement outside of barrel.In addition, the installation site of each steel ball 2 should be accurate, consistency is good.Based on said structure design,
There can be high concentricity between wire-drawing die 16 on clamping to the utility model fixture and live spindle 7.
Such as Fig. 1, rotating mechanism includes axle sleeve 10, and lower shaft portion 71 is pierced by from the centre bore of axle sleeve 10, and 10 top of axle sleeve is under
Upper bearing (metal) 9 is installed between axle portion 71, upper bearing (metal) 9 is mounted in the upper hole of axle sleeve 10,10 lower part of axle sleeve and lower shaft portion 71 it
Between lower bearing 12 is installed, lower bearing 12 is mounted in the bottom hole of axle sleeve 10, upper bearing (metal) 9, the inner ring of lower bearing 12 and rotation
The lower shaft portion 71 of main shaft 7 is in contact, inner ring and lower axle in the gap between axle sleeve 10 and lower shaft portion 71, between upper bearing (metal) 9
It holds and inner spacing collar 11 is installed between 12 inner ring, inner spacing collar 11 is used to support the inner ring of the inner ring and lower bearing 12 of upper bearing (metal) 9, axis
10 top of set is equipped with the outer ring of upper bearing (metal) 9 and 10 mutually fixed upper end cover 8 of axle sleeve, and lower shaft portion 71 is pierced by the part of axle sleeve 10
On be bolted with round nut 13, round nut 13 by upper end cover 8 by the inner ring of upper bearing (metal) 9, inner spacing collar 11, lower bearing 12 inner ring with
Lower shaft portion 71 is fixed together, and 10 bottom of axle sleeve is equipped with the outer ring of lower bearing 12 and 10 mutually fixed bottom end cover 14 of axle sleeve,
The bottom of lower shaft portion 71 is equipped with belt pulley 15, and belt pulley 15 is connected by belt with driving wheel, driving wheel and rotary electric machine
It is connected.
In the present invention, upper bearing (metal) 9 and lower bearing 12 can be self-aligning ball bearing, including inner ring, outer ring and be set to
Ball between inside and outside circle is component known in the art.
The course of work and self-centering clamping principle of the utility model be：
Lever up housing 1 upwards by tool, housing 1 drives inner sleeve 3 to move upwards certain altitude, and spring 5 is compressed at this time.
Since the rounding conical surface 74 on 7 top of live spindle designs, steel ball 2 be in upper port (big mouth) position of the rounding conical surface 74 and
It moves out, steel ball 2 exposes in 31 outside of barrel of inner sleeve 3, and wire-drawing die 16 can be placed on the die holder of positioning sleeve 4 at this time
On 43.Then, housing 1 is unclamped, under the acting in opposition of spring 5, housing 1 and inner sleeve 3 move to the cylinder bottom of inner sleeve 3 downwardly together
32 is tactile with the bottom connection of the column chamber 73 of upper spindle nose 72, at this time since the rounding conical surface 74 on 7 top of live spindle designs,
Steel ball 2 is in lower port (osculum) position of the rounding conical surface 74 and moves inwards, and steel ball 2 exposes in 31 inside of barrel of inner sleeve 3,
It is in contact with wire-drawing die 16 and clamps wire-drawing die 16.Then, start rotary electric machine, rotary electric machine passes through driving wheel, belt
Drive belt pulley 15 rotate, under the structure function of upper bearing (metal) 9 and lower bearing 12, belt pulley 15 drive live spindle 7, inner sleeve 3,
Positioning sleeve 4 and wire-drawing die 16 rotate together, and then wire-drawing die 16 is realized with live spindle 7 and rotated synchronously, wire-drawing die 16
Automatic alignment, self-centering operation are completed in live spindle 7.
The utility model has the advantages that：
The utility model realizes the fast of wire-drawing die in such a way that steel ball and rounding cone match rotate clamping automatically
Quick-mounting presss from both sides and the function of automatic alignment, self-centering efficient, repeats concentric locating error and is less than 0.01mm, can meet accurate wire drawing
Mold laser boring processing demand, while the utility model have it is compact-sized, it is small, it is light-weight, securely and reliably, be convenient for
Operation, it is easy to maintain the advantages that.
The above is the utility model preferred embodiment and its technical principle used, for those skilled in the art
It is any based on technical solutions of the utility model basis without departing substantially from the spirit and scope of the utility model for member
On equivalent transformation, simple replacement etc. it is obvious change, belong within scope of protection of the utility model.
Claims (7)
1. a kind of wire-drawing die rotates self-centering fixture, it is characterised in that：It includes live spindle, and live spindle includes connected
Upper spindle nose and lower shaft portion, wherein：Upper spindle nose is equipped with the column chamber of circular in cross-section, open top, and column intracavitary is equipped with interior
Set, inner sleeve include cylindrical barrel and the cylinder bottom with opening, are equipped with positioning sleeve in inner sleeve, positioning sleeve include cylindrical barrel,
The cylinder bottom and die holder at the top of barrel, the cylinder bottom of positioning sleeve be placed in the opening of inner sleeve after by locating pin and column bottom of chamber portion
It is mutually fixed, it is arranged with spring on the barrel of positioning sleeve, spring is inside sleeved on column between the die holder of positioning sleeve and the cylinder bottom of inner sleeve
Shape intracavitary can move up and down, and the round tube wall top of inner sleeve has been distributed uniformly and circumferentially a circle radial hole, in radial hole
It is movably installed with steel ball, the upper inside wall of column chamber is equipped with the rounding conical surface；Lower shaft portion is mounted on rotating mechanism.
2. wire-drawing die as described in claim 1 rotates self-centering fixture, it is characterised in that：
The opening diameter on the cylinder bottom of the inner sleeve is more than the cylinder bottom outer diameter of the positioning sleeve, so that described fixed
Position set the cylinder bottom and the column bottom of chamber portion of the upper spindle nose be in direct contact, the cylinder bottom of the positioning sleeve with it is described
The cylinder bottom of inner sleeve does not contact, and the barrel height of the inner sleeve is more than the barrel height of the positioning sleeve.
3. wire-drawing die as described in claim 1 rotates self-centering fixture, it is characterised in that：
The top of the inner sleeve is connected with the housing for covering the upper spindle nose top and side wall.
4. wire-drawing die as described in claim 1 rotates self-centering fixture, it is characterised in that：
The rounding conical surface of the live spindle is coaxially disposed with the inner sleeve, the upper surface of the die holder of the positioning sleeve
With the axis perpendicular of the rounding conical surface of the live spindle, wherein：When the interior acting in opposition for being sleeved on the spring
Under, the cylinder bottom of the inner sleeve moves downwardly to when being in contact with the column bottom of chamber portion of the upper spindle nose, the inner sleeve
On the steel ball be located at the bottom of the rounding conical surface.
5. wire-drawing die as described in claim 1 rotates self-centering fixture, it is characterised in that：
The wall thickness of the inner sleeve is less than the diameter of the steel ball, so that a part for the steel ball can be exposed in described
Except the barrel of set.
6. the wire-drawing die as described in any one of claim 1 to 5 rotates self-centering fixture, it is characterised in that：
The rotating mechanism includes axle sleeve, and the lower shaft portion is pierced by from the centre bore of axle sleeve, axle sleeve top and the lower shaft portion it
Between upper bearing (metal) is installed, lower bearing is installed between axle sleeve lower part and the lower shaft portion, upper bearing (metal), lower bearing inner ring with it is described
The lower shaft portion of live spindle is in contact, the inner ring in the gap between axle sleeve and the lower shaft portion, between upper bearing (metal) with
Inner spacing collar is installed between the inner ring of lower bearing, is equipped with the outer ring of upper bearing (metal) and the mutually fixed upper end of axle sleeve at the top of axle sleeve
Lid, the lower shaft portion, which is pierced by the part of axle sleeve, is bolted with round nut, round nut by upper end cover by the inner ring of upper bearing (metal), it is interior every
Set, lower bearing inner ring and the lower shaft portion be fixed together, axle sleeve bottom, which is equipped with, mutually consolidates the outer ring of lower bearing and axle sleeve
The bottom of fixed bottom end cover, the lower shaft portion is equipped with belt pulley, and belt pulley is connected by belt with driving wheel, driving wheel with
Rotary electric machine is connected.
7. wire-drawing die as claimed in claim 6 rotates self-centering fixture, it is characterised in that：
The upper bearing (metal) and the lower bearing are self-aligning ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721853588.0U CN207642483U (en) | 2017-12-26 | 2017-12-26 | A kind of wire-drawing die rotation self-centering fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721853588.0U CN207642483U (en) | 2017-12-26 | 2017-12-26 | A kind of wire-drawing die rotation self-centering fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207642483U true CN207642483U (en) | 2018-07-24 |
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ID=62875412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721853588.0U Active CN207642483U (en) | 2017-12-26 | 2017-12-26 | A kind of wire-drawing die rotation self-centering fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207642483U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014723A (en) * | 2018-08-24 | 2018-12-18 | 中核核电运行管理有限公司 | A kind of shielded coffin positioning pin entirety positioning installation apparatus |
| CN110076513A (en) * | 2019-04-22 | 2019-08-02 | 广东美的智能机器人有限公司 | Welding equipment, production line and welding method with it |
-
2017
- 2017-12-26 CN CN201721853588.0U patent/CN207642483U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014723A (en) * | 2018-08-24 | 2018-12-18 | 中核核电运行管理有限公司 | A kind of shielded coffin positioning pin entirety positioning installation apparatus |
| CN110076513A (en) * | 2019-04-22 | 2019-08-02 | 广东美的智能机器人有限公司 | Welding equipment, production line and welding method with it |
| CN110076513B (en) * | 2019-04-22 | 2021-10-08 | 广东美的智能机器人有限公司 | Welding equipment, production line with welding equipment and welding method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Address after: 100191 B3, Haidian District, Beijing, Huayuan Road Patentee after: Beijing Electric Processing Research Institute Co.,Ltd. Address before: 100191 B3, Haidian District, Beijing, Huayuan Road Patentee before: BEIJING INSTITUTE OF ELECTRO-MACHINING |