CN108555026A - A kind of mandril pre-rotation high-precision punch - Google Patents
A kind of mandril pre-rotation high-precision punch Download PDFInfo
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- CN108555026A CN108555026A CN201810462292.9A CN201810462292A CN108555026A CN 108555026 A CN108555026 A CN 108555026A CN 201810462292 A CN201810462292 A CN 201810462292A CN 108555026 A CN108555026 A CN 108555026A
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- mandril
- rotation
- driven torus
- active ring
- bar
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- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 3
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- 230000000694 effects Effects 0.000 abstract description 5
- 238000004080 punching Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000009987 spinning Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
Abstract
The present invention provides a kind of mandril pre-rotation high-precision punches, it includes mounting base, it prewhirls rotation mechanism and mandril, rotation mechanism of prewhirling includes connection end cap, active ring, driven torus, several wedge-shaped parts and several prerotation components, it on traditional mandril by adding rotation mechanism of prewhirling, rotation mechanism of prewhirling is driven to rotate using external force, and then mandril is made to carry out pre-rotation along the direction opposite with bar direction of rotation, when the top of mandril and bar initially contact and are felt relieved, the rotary inertia of reverse rotation make mandril quickly bite bar accurately complete centering work, simultaneously, when bar makes mandril rotating Vortex using frictional force, rotation mechanism of prewhirling has no effect mandril, solves the technical problem of the centering inaccuracy in large-scale punching machine post rod perforation procedure.
Description
Technical field
The invention belongs to piercing mill of seamless steel tube technical field of auxiliary equipment, specially a kind of mandril pre-rotation high-precision is worn
Hole machine.
Background technology
Punch is the main former of seamless steel tube production, it is to utilize two rolls, upper bottom guide and top institute
The closed type of formation carries out rolloff to steel pipe blank at high temperature and passes through closed type, solid bar is made to pierce
At seamless steel pipe, here it is the basic functional principles of punch.
Major impetus source in perforation procedure is two rolls, under huge roll-force and friction force effect, bar
Complicated plastic deformation occurs, and rotates around mandril and is moved along mandril line direction.At the same time, effect of the mandril in frictional force
Under rotated together also with hollow billet.
In middle-size and small-size perforation unit, the diameter and length of usual mandril are generally little, and rotary inertia is relatively small, mandril
Rotating torque needed for rotation provides the frictional force of top by bar, feels relieved in the top of mandril and bar initial contact
In the process, rotary inertia is small, and the bounce of top is small, and bar will not generally be caused to be torn or perforate the things such as difficulty in perforation procedure
Therefore.
But for large-scale punching machine, with the increase of mandril diameter and length, mandril rotary inertia also accordingly increases
Add, this explanation must obtain larger rotating torque in perforation procedure to make mandril be rotated together with bar.Facts proved that
When due to the increase of mandril rotary inertia to a certain extent, in top carries out centering process with bar initial contact, the jump of mandril
It moves acutely, be easy to cause centering and deviation occurs, eventually lead to molding wall thickness of seamless steel tube unevenness, even result in bar and be torn,
Broken situation of even perforating occurs.
In the Chinese patent of Patent No. CN101428296B, a kind of prewhirling for large-scale punching machine post rod is disclosed
Rotary device, mainly by rack, upper pressure roller assembly by feed screw nut, step leading screw, pressing plate, butterfly spring, rectangle slide, quilt
Dynamic pressure roller and driven axle composition and two sets of mutually isostructural driving roller assemblies are by decelerating motor, sprocket wheel, chain, cylinder support, cunning
Seat, oil cylinder, initiative compression roller and slide plate composition are constituted, wherein upper pressure roller assembly configuration is hit exactly above rack, two sets of driven rollers are total
It is configured in the both sides of rack at inclined reverse symmetry, upper pressure roller assembly central axis and the driven roller that every suit is arranged obliquely are total
At central axis respectively at 120 ° of angles.The present invention can bite rolling groove in pipe and contact top moment supply mandril and centainly open
Dynamic torque, hollow billet tearing and perforation are difficult caused by reduction perforation procedure mandril rotary inertia is excessive.
But technical solution disclosed in above-mentioned patent, only it is to make mandril carry out the pre-rotation in the same direction with bar to be opened
Dynamic torque makes mandril be easier to bite in bar, but is initially contacting centering with bar with the mandril of bar rotating Vortex
Moment, frictional force can be such that bounce aggravates, and cause centering the problem of deviation occur and aggravate.
Invention content
In view of the above problems, the present invention provides a kind of mandril pre-rotation high-precision punches, by traditional top
Rotation mechanism of prewhirling is added on bar, drives rotation mechanism of prewhirling to rotate using external force, and then make mandril along opposite with bar direction of rotation
Direction carry out pre-rotation, when the top of mandril and bar carry out initial contact and are felt relieved, the rotary inertia of reverse rotation
So that mandril is quickly bitten bar and accurately completes centering work, meanwhile, when bar makes mandril rotating Vortex using frictional force,
Rotation mechanism of prewhirling has no effect mandril, solves the skill of the centering inaccuracy in large-scale punching machine post rod perforation procedure
Art problem.
To achieve the above object, the present invention provides the following technical solutions：
A kind of mandril pre-rotation high-precision punch, including：
Mounting base, the mounting base are arranged symmetrically, are arranged for convex shape, and its middle part is equipped with mounting hole；
It prewhirls rotation mechanism, the both ends of the rotation mechanism of prewhirling are rotatably dispose in across the mounting hole in the mounting base,
It includes that connection end cap, active ring, driven torus, several wedge-shaped parts and several prerotation components, the connection end cap are symmetrical
The both ends of the rotation mechanism of prewhirling are set to, and the connection end cap of either end is sequentially connected with driving device, the active ring is set
Be placed in the middle part of the rotation mechanism of prewhirling, be arranged for circular ring shape, and its both ends is fastenedly connected with the connection end cap, it is described from
Rotating ring is coaxially disposed in the active ring, is placed equidistant with several splines, the wedge-shaped part on inner ring around its central axes
Axis along the active ring is placed equidistant between the active ring and driven torus, and the wedge-shaped part and the active ring
Raceway is formed between the outer wall of inner wall and the driven torus, the prerotation component is provided in the raceway；And
Mandril, the mandril are arranged on the inner ring of the driven torus, convex with the position of the driven torus corresponding matching
Equipped with several keyways, which is equipped with spline one-to-one correspondence.
As an improvement, the spline is arranged for shuttle shape, both ends are angle shape.
As an improvement, the wedge-shaped part is wholely set with the active ring comprising be directed toward at the driven torus center
First working face and in the counterclockwise direction with vertically disposed second working face of the first working face of next wedge-shaped part.
As an improvement, the wedge-shaped part is wholely set with the driven torus comprising be directed toward at the driven torus center
First working face and in the counterclockwise direction with vertically disposed second working face of the first working face of next wedge-shaped part.
As an improvement, offering spring hole on first working face.
As an improvement, the prerotation component includes：
Roller, the roller are movably set in the raceway, and the thickness direction along the driven torus is arranged；
Spring, the spring are set in the spring hole, are directed toward the roller setting；And
One end of movable post, the movable post is set in the spring hole, and is fixedly connected with the spring, other end activity
It is set to outside the spring hole.
As an improvement, the end set for the connection end cap being sequentially connected with driving device has sprocket wheel, the sprocket wheel and institute
Connection end cap is stated to be fastenedly connected.
As an improvement, the connection end cap and the both sides of the mounting hole belled position are respectively arranged with standby cap and first axle
It holds, the standby cap is set to the outside of the mounting base, and circlip is provided between the mounting base resistance surface, described
First bearing is set to the inside of the mounting base, and sealing ring is provided between the resistance surface of the connection end cap.
As an improvement, the both ends of the active ring and driven torus belled position are symmetrically arranged with second bearing and third axis
It holds.
The beneficial effects of the present invention are：
(1) present invention adds rotation mechanism of prewhirling by using on traditional mandril, and rotation mechanism of prewhirling is driven using external force
Active ring rotation, then by rub left and right so that driven torus is rotated, later by driven torus drive mandril and bar direction of rotation
It is reversely rotated, when the top of mandril and bar initially contact and felt relieved, the rotary inertia of reverse rotation makes top
Bar quickly bites bar and accurately completes centering work, reduces the bounce of mandril, meanwhile, make mandril using frictional force in bar
When rotating Vortex, do not interfered between active ring and driven torus；
(2) present invention, using the rotation of active ring, drives roller by the way that wedge-shaped part is arranged between active ring and driven torus
Friction between the second working face and active ring inner wall of wedge-shaped part, makes driven torus rotate, and then drives mandril rotation, and
In frictional force active rotation of the mandril by bar, the first working face of roller and wedge-shaped part coordinates, and keeps active ring pre- driven
There is only lower sliding frictions between ring, make active ring that can not interfere the rotation of driven torus；
(3) present invention is supported the rear end of mandril by using rotation mechanism of prewhirling, and bar is made to pass through frictional force band
In dynamic mandril rotary course, degree of freedom of the mandril in rotary course is limited, the bounce of mandril is reduced, keeps the stabilization of rotation
Property；
(4) present invention is coordinated using the keyway on the spline and mandril of shuttle shape, is made by setting spline to shuttle shape
Angle folder end on spline can be quickly inserted into the keyway of mandril, and during plugging together, the curved side of spline both sides
Side can be oriented to keyway, position easily and fast.
In conclusion the present invention has perforation accurate, deviation is small, be molded seamless steel pipe quality it is high the advantages that, it is especially suitable
For piercing mill of seamless steel tube technical field of auxiliary equipment.
Description of the drawings
Fig. 1 is the lateral schematic cross-sectional view of the present invention；
Fig. 2 is the longitudinal schematic cross-sectional view of the present invention；
Fig. 3 is structure enlargement diagram at A in Fig. 2；
Fig. 4 is connection end cap schematic cross-sectional view of the present invention；
Fig. 5 is mounting base positive structure diagram of the present invention；
Fig. 6 is driving wheel schematic cross-sectional view of the present invention；
Fig. 7 is driven wheel positive structure diagram of the present invention；
Fig. 8 is driven wheel dimensional structure diagram of the present invention；
Fig. 9 is driven wheel schematic cross-sectional view of the present invention；
Figure 10 standby cap positive structure diagrams of the present invention；
Figure 11 is mandril positive structure diagram of the present invention；
Figure 12 is mandril side structure schematic view of the present invention；
Figure 13 is two positive structure diagram of the embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, do not indicate or imply the indicated equipment or element must have a particular orientation, with spy
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
Embodiment one：
As shown in Figure 1, Figure 2, shown in Fig. 4, Fig. 5, Fig. 6, Figure 11 and Figure 12, a kind of mandril pre-rotation high-precision punch, including：
Mounting base 1, the mounting base 1 are arranged symmetrically, are arranged for convex shape, and its middle part is equipped with mounting hole 11；
It prewhirls rotation mechanism 2, the both ends of the rotation mechanism 2 of prewhirling are rotatably dispose in the mounting base across the mounting hole 11
On 1 comprising connection end cap 21, active ring 22, driven torus 23, several wedge-shaped parts 24 and several prerotation components 25, institute
The both ends that connection end cap 21 is symmetrically disposed on the rotation mechanism 2 of prewhirling are stated, and the connection end cap of either end is driven with driving device
Connection, the active ring 22 are set to the middle part of the rotation mechanism 2 of prewhirling, are arranged for circular ring shape, and its both ends and the company
It connects end cap 21 to be fastenedly connected, the coaxial arrangement of the driven torus 23 is equidistant around its central axes on inner ring in the active ring 22
It is provided with several splines 230, the wedge-shaped part 24 is placed equidistant with along the axis of the active ring 22 in the active ring 22
Between driven torus 23, and formed between the outer wall of the inner wall and the driven torus 23 of the wedge-shaped part 24 and the active ring 22
Raceway 26 is provided with the prerotation component 25 in the raceway 26；And
Mandril 3, the mandril 3 are arranged on the inner ring of the driven torus 23, with 23 corresponding matching of the driven torus
Position is convexly equipped with several keyways 31, which is equipped with the one-to-one correspondence of the spline 230.
It should be noted that when active ring 22 is rotated by driving device drive, it is pre- by what is be arranged in raceway 26
The transmission for turning the moment of friction of component 25 makes 23 rotating Vortex of driven torus, and then makes mandril by spline 230 and the cooperation of keyway 31
3 are rotated, at this point, the direction of rotation of mandril 3 is opposite with the direction of rotation of bar.
It further illustrates, when the top of mandril 3 and the end of bar carry out initial contact centering, mandril 3 and stick
Material reversely rotates, and at this time at the center for withstanding bar of mandril 3, reversely rotates the speed for accelerating top to bite bar, makes
It comes directly towards in quick insertion bar, and ensures that the center of mandril 3 and the center of bar precisely align.
It illustrates further, in the case where bar persistently rotates, the frictional force between bar and the mandril 3 bitten makes mandril
3 reverse rotation torque is gradually offset, and is only started synchronized rotation in the same direction to bar and mandril 3, is rubbed by bar in mandril 3
When power loads, there is also the loads of bar frictional force on driven torus 23, at this point, there is only cunnings between active ring 22 and driven torus 23
Dynamic friction, active ring 22 do not generate interference to the rotation of driven torus 23 and mandril 3, control active ring 22 by driving device later
It stops rotating.
As shown in figure 8, as a preferred embodiment, the spline 230 is arranged for shuttle shape, both ends are angle shape.
It should be noted that when mandril 3 is inserted into driven torus 23, in order to which the dress of driven torus 23 and mandril 3 is rapidly completed
Match, sets spline 230 to shuttle shape, the end of angle shape and arc-shaped side edges, spline 230 and keyway 31 can be quickly finished
Assembly.
As shown in fig. 7, as a preferred embodiment, the wedge-shaped part 24 is wholely set with the driven torus 23,
It includes being directed toward the first working face 241 at 23 center of driven torus and in the counterclockwise direction the with next wedge-shaped part 24
One working face, 241 vertically disposed second working face 242.
Wherein, spring hole 243 is offered on first working face 241.
As shown in figure 3, further, the prerotation component 25 includes：
Roller 251, the roller 251 are movably set in the raceway 26, along the thickness direction of the driven torus 23
Setting；
Spring 252, the spring 252 are set in the spring hole 243, are directed toward the roller 251 and are arranged；And
One end of movable post 253, the movable post 253 is set in the spring hole 243, and is fixedly connected with the spring 252,
Its other end is movably set in outside the spring hole 243.
It should be noted that when driving device drives active ring 22 to be rotated counterclockwise, due to the elastic force of spring 252
And the frictional force that roller 251 is subject to itself, so that the inner ring of roller 251 and active ring 22 and the second working face 242 is in wedge
Tight state makes mandril 3 be rotated at this point, active ring 22 drives driven torus 23 to synchronize rotating Vortex.
It further illustrates, after the completion of the bar of the top of mandril 3 and spinning bites centering work, 3 meeting of mandril
It is driven by the frictional force between bar and is rotated along the direction of rotation opposite with active ring 22, at this point, due to driven torus 23
Autonomous rotation, the elastic force of spring 252 can not have an impact roller 251, and roller 251 is pulled to one end of the first working face 241
On, the wedging status releasing between the inner ring face of roller 251 and active ring 22 and the second working face 242, active ring 22 with from
There is only opposite slidings between rotating ring 23.
As shown in Figure 1, as a preferred embodiment, with the connection end cap 21 of driving device drive connection
End set has sprocket wheel 4, which is fastenedly connected with the connection end cap 21.
It should be noted that driving device drives connection end cap 21 to rotate by the sprocket wheel chain kind of drive, and then drive
Active ring 22 is rotated.
It is shown as a preferred embodiment, the connection end cap 21 and the mounting hole as shown in Fig. 1 and Figure 10
The both sides of 11 belled positions are respectively arranged with standby cap 51 and first bearing 52, and the standby cap 51 is set to the outer of the mounting base 1
Circlip 53 is provided between side, with 1 resistance surface of the mounting base, the first bearing 52 is set to the mounting base 1
Inside, sealing ring 54 is provided between the resistance surface of the connection end cap 21.
As shown in Figure 1, as a preferred embodiment, the both ends of the active ring 22 and 23 belled position of driven torus
Symmetrically it is arranged with second bearing 55 and 3rd bearing 56.
Embodiment two：
Figure 13 is a kind of a kind of structural schematic diagram of the embodiment two of mandril pre-rotation high-precision punch of the present invention；Such as figure
Shown in 13, wherein using reference numeral corresponding with embodiment one with a kind of identical or corresponding component of embodiment, risen to be easy
See, hereafter only describes the distinctive points with embodiment one.The embodiment two and embodiment one shown in FIG. 1 the difference is that：
As shown in figure 13, a kind of mandril pre-rotation high-precision punch, the wedge-shaped part 24 and 22 one of the active ring
Setting comprising the first working face 241 for being directed toward at 23 center of the driven torus and in the counterclockwise direction with next wedge-shaped part
24 241 vertically disposed second working face 242 of the first working face.
It should be noted that the place different from embodiment one is, and in this implementation, wedge-shaped part 24 and 22 one of active ring
Setting, active ring 22 by driving device drive rotated when, due to spring 252 elastic force and roller 251 itself by
Frictional force, so that the outer ring of roller 251 and driven torus 23 and the second working face 242 is in the state of wedging, at this point, active ring
22 drive driven torus 23 to synchronize rotating Vortex, and mandril 3 is made to be rotated.
It further illustrates, after the completion of the bar of the top of mandril 3 and spinning bites centering work, 3 meeting of mandril
It is driven by the frictional force between bar and is rotated along the direction of rotation opposite with active ring 22, at this point, due to driven torus 23
Autonomous rotation, the elastic force of spring 252 can not have an impact roller 251, and roller 251 is pulled to one end of the first working face 241
On, the wedging status releasing between roller 251 and 23 outer ring face of driven torus and the second working face 242, active ring 22 with it is driven
There is only opposite slidings between ring 23.
The course of work：
When initial, when active ring 22 is rotated by driving device drive, acted on by frictional force and elastic force, roller
251 make active ring 22 be in wedging state with driven torus 23, and active ring 22 makes mandril 3 be rotated by driven torus 23, mandril 3
The bar turned with reversed spin is contradicted, and the top of mandril 3 starts to bite in bar, and centering work is carried out to bar, due to
It being reversely rotated between mandril 3 and bar, mandril 3 can fast and accurately bite in bar, after the completion of mandril 3 bites work,
The torque of the spinning of bar makes the frictional force that mandril 3 is given by bar, and it is same in the same direction that frictional force drives mandril 3 to be carried out with bar
Speed rotation, at this point, roller 251 is pulled on one end of the first working face 241, the wedging shape between active ring 22 and driven torus 23
State releases, and any interference does not occur between the rotation and the rotation of driven torus 23 of active ring 22, and later, driving device is controlled by counting
Control case control makes active ring 22 stop rotating.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (9)
1. a kind of mandril pre-rotation high-precision punch, which is characterized in that including：
Mounting base (1), the mounting base (1) are arranged symmetrically, are arranged for convex shape, and its middle part is equipped with mounting hole
(11)；
It prewhirls rotation mechanism (2), the both ends of the rotation mechanism of prewhirling (2) are rotatably dispose in the installation across the mounting hole (11)
On seat (1) comprising connection end cap (21), active ring (22), driven torus (23), several wedge-shaped part (24) and several pre-
Turn component (25), the connection end cap (21) is symmetrically disposed on the both ends of rotation mechanism (2) of prewhirling, and the connecting pin of either end
Lid is sequentially connected with driving device, and the active ring (22) is set to the middle part of rotation mechanism (2) of prewhirling, and is set for circular ring shape
It sets, and its both ends is fastenedly connected with the connection end cap (21), driven torus (23) coaxial arrangement is in the active ring (22)
It is interior, it is placed equidistant with several spline (230) around its central axes on inner ring, the wedge-shaped part (24) is along the active ring
(22) axis is placed equidistant between the active ring (22) and driven torus (23), and the wedge-shaped part (24) and the active ring
(22) raceway (26) is formed between the outer wall of inner wall and the driven torus (23), and the prerotation is provided in the raceway (26)
Component (25)；And
Mandril (3), the mandril (3) is arranged on the inner ring of the driven torus (23), corresponding with the driven torus (23) to match
The position of conjunction is convexly equipped with several keyway (31), which is equipped with the spline (230) one-to-one correspondence.
2. a kind of mandril pre-rotation high-precision punch according to claim 1, which is characterized in that the spline (230)
It is arranged for shuttle shape, both ends are angle shape.
3. a kind of mandril pre-rotation high-precision punch according to claim 1, which is characterized in that the wedge-shaped part (24)
Be wholely set with the active ring (22) comprising the first working face (241) for being directed toward at the driven torus (23) center and
In the counterclockwise direction with vertically disposed second working face (242) of the first working face of next wedge-shaped part (24) (241).
4. a kind of mandril pre-rotation high-precision punch according to claim 1, which is characterized in that the wedge-shaped part (24)
Be wholely set with the driven torus (23) comprising the first working face (241) for being directed toward at the driven torus (23) center and
In the counterclockwise direction with vertically disposed second working face (242) of the first working face of next wedge-shaped part (24) (241).
5. a kind of mandril pre-rotation high-precision punch according to claim 3 or 4, which is characterized in that first work
Make to offer spring hole (243) on face (241).
6. a kind of mandril pre-rotation high-precision punch according to claim 5, which is characterized in that the prerotation component
(25) include：
Roller (251), the roller (251) are movably set in the raceway (26), the thickness along the driven torus (23)
Direction is arranged；
Spring (252), the spring (252) are set in the spring hole (243), are directed toward roller (251) setting；And
One end of movable post (253), the movable post (253) is set in the spring hole (243), and fixed with the spring (252)
Connection, the other end are movably set in the spring hole (243) outside.
7. a kind of mandril pre-rotation high-precision punch according to claim 1, which is characterized in that be driven with driving device
The end set of the connection end cap (21) of connection has sprocket wheel (4), which connects with the connection end cap (21) fastening
It connects.
8. a kind of mandril pre-rotation high-precision punch according to claim 1, which is characterized in that the connection end cap
(21) standby cap (51) and first bearing (52), the standby cap are respectively arranged with the both sides of the mounting hole (11) belled position
(51) it is set to the outside of the mounting base (1), circlip (53) is provided between the mounting base (1) resistance surface,
The first bearing (52) is set to the inside of the mounting base (1), is set between the resistance surface of the connection end cap (21)
It is equipped with sealing ring (54).
9. a kind of mandril pre-rotation high-precision punch according to claim 1, which is characterized in that the active ring (22)
It is symmetrically arranged with second bearing (55) and 3rd bearing (56) with the both ends of driven torus (23) belled position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810462292.9A CN108555026B (en) | 2018-05-15 | 2018-05-15 | Ejector rod pre-rotation high-precision perforating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810462292.9A CN108555026B (en) | 2018-05-15 | 2018-05-15 | Ejector rod pre-rotation high-precision perforating machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108555026A true CN108555026A (en) | 2018-09-21 |
| CN108555026B CN108555026B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810462292.9A Active CN108555026B (en) | 2018-05-15 | 2018-05-15 | Ejector rod pre-rotation high-precision perforating machine |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000301214A (en) * | 1999-04-23 | 2000-10-31 | Sumitomo Metal Ind Ltd | Piercing device and piercing method |
| JP2001030103A (en) * | 1999-07-16 | 2001-02-06 | Suido Gijutsu Kaihatsu Kiko:Kk | Boring device for fluid transporting pipe |
| CN101428296A (en) * | 2008-12-08 | 2009-05-13 | 中信重工机械股份有限公司 | Pre-rotation apparatus for large-scale punching machine post rod |
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| CN208261523U (en) * | 2018-05-15 | 2018-12-21 | 浙江辛子精工机械股份有限公司 | A kind of mandril pre-rotation high-precision punch |
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| JP2000301214A (en) * | 1999-04-23 | 2000-10-31 | Sumitomo Metal Ind Ltd | Piercing device and piercing method |
| JP2001030103A (en) * | 1999-07-16 | 2001-02-06 | Suido Gijutsu Kaihatsu Kiko:Kk | Boring device for fluid transporting pipe |
| CN101428296A (en) * | 2008-12-08 | 2009-05-13 | 中信重工机械股份有限公司 | Pre-rotation apparatus for large-scale punching machine post rod |
| US20160257050A1 (en) * | 2014-08-06 | 2016-09-08 | Entek Manufacturing Llc | Extruder screw shaft alignment apparatus and method |
| CN205270976U (en) * | 2015-11-29 | 2016-06-01 | 重庆天运汽车配件有限公司 | Flange circular arc hole drilling equipment |
| CN206230292U (en) * | 2016-12-08 | 2017-06-09 | 福州兴诺机械工业有限公司 | A kind of hydraulic power head |
| CN208261523U (en) * | 2018-05-15 | 2018-12-21 | 浙江辛子精工机械股份有限公司 | A kind of mandril pre-rotation high-precision punch |
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| CN108555026B (en) | 2023-05-23 |
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