CN108405737B - Sizing mill - Google Patents
Sizing mill Download PDFInfo
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- CN108405737B CN108405737B CN201810234592.1A CN201810234592A CN108405737B CN 108405737 B CN108405737 B CN 108405737B CN 201810234592 A CN201810234592 A CN 201810234592A CN 108405737 B CN108405737 B CN 108405737B
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- oil
- flaring
- plate body
- necking
- die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
- B21D41/026—Enlarging by means of mandrels
- B21D41/028—Enlarging by means of mandrels expandable mandrels
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- Mechanical Engineering (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a kind of sizing mills, including fuel tank and plug die, plug die includes rise core, flaring die and the reducing die that is sheathed on flaring die, the core that rises has the flaring driving portion in insertion flaring die, flaring die is made of multiple flaring mold sections circumferentially, and the flaring driving portion is eight prismatic structures, and flaring driving portion has eight drive surfaces circumferentially, the flaring mold section has the mating surface with driving face contact, and drive surface and mating surface are plane.Sizing mill of the invention, the core that rises is changed to eight prismatic structures, the contact area between flaring die can be increased, to reduce the abrasion of flaring die and the core that rises, extend service life, and due to there is no the phenomenon that point contact between the driving for the core that rises and the mating surface of flaring die, so as to improve the machining accuracy of pipe fitting, the yields of pipe fitting is improved.
Description
Technical field
The invention belongs to metal machining equipment technical fields, specifically, the present invention relates to a kind of sizing mills.
Background technique
In automobile exhaust pipe production process, flaring sizing is one of important process, for this reason, it may be necessary to use sizing mill.
On sizing mill, mold used by sizing exhaust pipe pipe end is plug die.Existing plug die can only be simply flared
Sizing is more valve structures since flaring die has the core that rises, and product after being flared is affected there is circularity dimensional accuracy is poor
Product quality, the tube outer diameter size after processing is difficult to accurately guarantee, while plug die is prone to wear, and service life is short.
Existing sizing mill, the cylinder structure of use be all it is knockdown, oil cylinder layout it is single.Combined oil cylinder itself knot
Structure is complicated, and when production is comparatively laborious, and processing cost is also higher than common oil cylinder.Although fabricated structure reduces oil cylinder whole empty
Between, but the effective heat dissipation area of cylinder block is decreased simultaneously, easily there is phenomena such as fever is fast, heat dissipation is slow, high temperature is creeped in oil cylinder.
Prolonged high temperature can also accelerate the aging of sealing ring simultaneously, cause oil cylinder on service life will be well below general expression structure
Oil cylinder.The excessively high stability that can also reduce oil cylinder of temperature, causes oil cylinder creeping phenomenon occur.Complicated structure is replaced in maintenance
Sealing element is also very inconvenient.
Existing sizing mill, for the fuel tank used for the body structure of monoblock type, two sides can only pass through two sides with window is repaired
Repairing window place under repair the part of box house, extremely limited due to repairing window, repairing the part of box house also can be by
To limitation.And fuel tank internal does not have deflector, hydraulic oil can not sufficiently recycle in fuel tank, the impurity of case internal deposition also without
Method is cleaned out.When the oil liquid for having high temperature in hydraulic system flows into cabinet, since high-temperature oil liquid can not be in box house
Circulating cooling is carried out, is sucked again by oil pump, reenters hydraulic system, quick heating, temperature are high when oil pressure unit being caused to run,
Lead to problems such as the hydraulic actuating mechanisms such as oil cylinder occur fluctuation of service, oil leak, sealing element loss it is fast.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.Determine for this purpose, the present invention provides one kind
Diameter machine, it is therefore an objective to improve pipe fitting machining accuracy.
To achieve the goals above, the technical scheme adopted by the invention is as follows: sizing mill, including fuel tank and plug die, sizing
Mould includes rise core, flaring die and the reducing die that is sheathed on flaring die, and the core that rises has the flaring driving portion in insertion flaring die, expands
Mouth mold is made of multiple flaring mold sections circumferentially, and the flaring driving portion is eight prismatic structures, flaring driving portion tool
There are eight drive surfaces circumferentially, the flaring mold section has the mating surface with driving face contact, drive surface and mating surface
For plane.
The drive surface is that the width of tapered plane and drive surface is to be gradually reduced since one end to the other end, drive surface
Vertical range between the maximum one end of width and the axis of the core that rises is less than the smallest one end of width of drive surface and the core that rises
Axis between vertical range.
The sizing mill further includes necking oil cylinder and connect with the core that rises and moved for controlling the core that rises along axial direction
Dynamic flaring oil cylinder, the plug die further include the pressing sleeve being sheathed on the reducing die, and necking oil cylinder is for controlling pressing sleeve edge
Axially moved.
The flaring oil cylinder is between the plug die and the necking oil cylinder, flaring oil cylinder, plug die and necking oil
Cylinder is coaxial arrangement.
The fuel tank includes the first upper cover plate and second for storing the main box of hydraulic oil, being set on main box
Cover board and the guiding device for being set to inside main box and flowing hydraulic oil by setting path.
First upper cover plate is equipped with oil inlet, and second upper cover plate is equipped with inlet port, and guiding device is arranged to
Flow to the intracorporal hydraulic oil of the main tank at inlet port from oil inlet by setting path.
First upper cover plate and second upper cover plate and the main box are detachable connection.
The guiding device includes the first deflector and the second deflector, and the first deflector is located under the oil inlet
Side, the second deflector are located at the lower section of inlet port, and the first deflector and the second deflector are L shape, and S-shaped is in the path that sets.
First deflector includes the first plate body and the second plate body being connected, and second deflector includes being connected
Third plate body and the 4th plate body, the first plate body and third plate body are to be oppositely arranged and have between the first plate body and third plate body
Allow the gap that hydraulic oil passes through, the first plate body and third plate body are connect with the main box.
The sizing mill further includes the motor being set on the fuel tank, the oil pump connecting with motor, solenoid valve
Group and air cooler and water cooler for reducing hydraulic fluid temperature, oil pump is pair vane pump, air cooler and electromagnetism
Valve group is to be oppositely arranged.
Sizing mill of the invention, the core that rises are changed to eight prismatic structures, it is possible to increase the contact area between flaring die, to drop
The abrasion of low flaring die and the core that rises, extends service life, and due between the driving for the core that rises and the mating surface of flaring die
There is no the phenomenon that point contact, so as to improve the machining accuracy of pipe fitting, improves the yields of pipe fitting.
Detailed description of the invention
This specification includes the following drawings, and shown content is respectively:
Fig. 1 is the structural schematic diagram of sizing mill of the present invention；
Fig. 2 is the structural schematic diagram of another angle of sizing mill of the present invention；
Fig. 3 is the structural schematic diagram of plug die；
Fig. 4 is the cross-sectional view of flaring die with the core that rises；
Fig. 5 is the structural schematic diagram of core of rising；
Fig. 6 is the structural schematic diagram of flaring die；
Fig. 7 is the cross-sectional view for being flared oil cylinder；
Fig. 8 is the cross-sectional view of necking oil cylinder；
Fig. 9 is the structural schematic diagram of fuel tank；
Figure 10 is the decomposition diagram of fuel tank；
Figure 11 is the top view of main box, and arrow indicates running of hydraulic power oil direction in figure；
Figure 12 is the assembling schematic diagram of the components such as fuel tank and motor；
Figure 13 is the schematic illustration of hydraulic system；
Figure 14 is the assembling schematic diagram of the components such as fuel tank and water cooler；
In the figure, it is marked as
1, air cooler；
2, motor；3, oil pump；301, the first oil outlet；302, the second oil outlet；303, inlet port；
4, solenoid valve block；
5, plug die；501, necking mold section；502, it is flared mold section；503, it is flared driving portion；504, interconnecting piece；505, it drives
Face；506, mating surface；507, shell；508, it is flared working face；
6, fuel tank；601, oil inlet；602, inlet port；603, the first upper cover plate；604, the second upper cover plate；605, it repairs
Window；606, the first lateral wall；607, the second lateral wall；608, third lateral wall；609, the 4th lateral wall；610, bottom wall；611,
First plate body；612, the second plate body；613, third plate body；614, the 4th plate body；
7, bracket；8, necking oil cylinder；9, it is flared oil cylinder；10, water cooler；11, connecting rod.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to a specific embodiment of the invention further details of
Explanation, it is therefore an objective to those skilled in the art be helped to have more complete, accurate and deep reason to design of the invention, technical solution
Solution, and facilitate its implementation.
As shown in figs. 1 to 14, the present invention provides a kind of sizing mills, including fuel tank 6 and plug die 5, plug die 5 includes
Rise core, flaring die and the reducing die being sheathed on flaring die, and the core that rises has the flaring driving portion 503 in insertion flaring die, flaring
Mould is made of multiple flaring mold sections 502 circumferentially, and flaring driving portion 503 is eight prismatic structures, is flared driving portion 503
With eight drive surfaces 505 circumferentially, being flared mold section 502 has the mating surface 506 contacted with drive surface 505, driving
Face 505 and mating surface 506 are plane.
Specifically, sizing mill of the invention is for carrying out flaring and necking processing to pipe fitting, pipe fitting is automobile exhaust
Pipe.As depicted in figs. 1 and 2, sizing mill of the invention further includes the bracket 7 being set on fuel tank 6, and plug die 5 is set to bracket 7
On, bracket 7 is fixedly installed on the top surface of fuel tank 6, and fuel tank 6 is for storing hydraulic oil.
As shown in Figures 1 to 6, plug die 5 further includes shell 507 and the pressing sleeve that is sheathed on reducing die, and pressing sleeve is annulus
Shape structure and pressing sleeve are axially mobile setting, pressing sleeve and reducing die, flaring die and the core that rises is coaxial arrangement.Reducing die is
It is made of multiple necking mold sections 501 circumferentially, shell 507 is fixedly connected with bracket 7, and necking mold section 501 can be radially
It is moved, flaring mold section 502 can be moved radially, and shell 507 plays guiding to necking mold section 501 and flaring mold section 502
One end of effect, necking mold section 501 is inserted into shell 507, in the centre bore of the other end insertion pressing sleeve of necking mold section 501, is expanded
In one end insertion shell 507 of mouth mold valve 502, in the centre bore of the other end insertion reducing die of flaring mold section 502.
As shown in Figures 1 to 6, flaring die is made of eight flaring mold sections 502 being circumferentially evenly arranged, and reducing die is
It is made of eight necking mold sections 501 being circumferentially evenly arranged, the inner cylinder face that the inner surface of each necking mold section 501 surrounds is constituted
Undergauge working face, the outer surface of each necking mold section 501 surround an outer conical surface, and pressing sleeve with the male cone (strobilus masculinus) in being bonded
Circular conical surface, the axial movement of pressing sleeve can oppress necking mold section 501 by cone match and move radially inwardly to tighten, in turn
Necking forming is carried out to pipe fitting by undergauge working face.The external cylindrical surface that the outer surface of each flaring mold section 502 surrounds constitutes flaring
Working face 508, flaring working face 508 are opposite with undergauge working face.
As shown in Figures 1 to 6, the core that rises is that the flaring driving portion 503 and interconnecting piece 504 by being connected are constituted, flaring driving
Portion 503 is sequentially arranged along the axial direction for the core that rises with interconnecting piece 504 and is flared one end of driving portion 503 and one end of interconnecting piece 504
It is fixedly connected, eight flaring mold sections 502 are uniformly distributed circumferentially in the outside of flaring driving portion 503, and flaring driving portion 503 is edge
Axially movable setting, flaring driving portion 503 for pushing eight flaring mold sections 502 to move radially with outside spreading, into
And flare formation is carried out to pipe fitting by flaring working face 508.Be flared driving portion 503 cross section (cross section be and the core that rises
Axis perpendicular plane) be octagon, be flared generally eight pyramids of driving portion 503, drive surface 505 be flaring driving
The outer surface in portion 503, drive surface 505 are that the width of tapered plane and drive surface 505 is the length direction along drive surface 505 from one end
Start to the other end to be gradually reduced, there is angle between the length direction of drive surface 505 and the axis for the core that rises and the angle is sharp
Angle, the width that the vertical range between the maximum one end of the width of drive surface 505 and the axis for the core that rises is less than drive surface 505 are minimum
One end and the core that rises axis between vertical range.The maximum one end of the width of drive surface 505 is nearest apart from interconnecting piece 504
One end, the smallest one end of the width of drive surface 505 be far from interconnecting piece 504 one end, drive surface 505 have eight, flaring
Eight drive surfaces 505 on driving portion 503 are to be uniformly distributed circumferentially, and the flaring driving portion 503 of formation is eight pyramid-shaped structures,
The external diameter of a circle for being flared one end of driving portion 503 is maximum, and the external diameter of a circle of the other end is minimum, is flared driving portion 503
Circumscribed circle the center of circle be located at rise core axis on, be flared driving portion 503 the maximum one end of circumscribed circle diameter and interconnecting piece 504
It is fixedly connected.Each flaring mold section 502 have a mating surface 506, be flared driving portion 503 each drive surface 505 respectively with
The mating surface 506 of one flaring mold section 502, which contacts, and mating surface 506 is with drive surface 505 can remain the state being bonded, shape
At face contact, mating surface 506 is identical as the shape of drive surface 505, cross section (cross section of the centre bore of the flaring die of formation
For the plane of the axis perpendicular with flaring die) it is in octagon, in this way when carrying out expanding to pipe fitting, the core that rises is along axial
Mobile, eight drive surfaces 505 of the core that rises and eight mating surfaces 506 of flaring die are always maintained at surface contact state, this avoid
The generation of point contact phenomenon reduces the abrasion of rise core and flaring die, extends the service life of mold, avoids the pipe of pipe fitting
The problem for holding sizing inaccurate occurs.Even if rising by core and flaring die abrasion in use, due to being the abrasion feelings in eight faces of face contact
Condition is consistent, and the pipe end out of roundness of the pipe fitting of processing will not reduce, and ensures that the machining accuracy of pipe fitting.With pipe fitting
Out of roundness improve, the yields of product also gets a promotion.
As depicted in figs. 1 and 2, sizing mill of the invention further includes necking oil cylinder 8 and connect with the core that rises and rise for controlling
The flaring oil cylinder 9 that core move alongs the axial direction, necking oil cylinder 8 are move alonged the axial direction for controlling pressing sleeve.Flaring oil cylinder 9 is located at
Between plug die 5 and necking oil cylinder 8, flaring oil cylinder 9, plug die 5 and necking oil cylinder 8 are coaxial arrangement.Rise the interconnecting piece 504 of core
Positioned at the outside of flaring die, interconnecting piece 504 is fixedly connected with the piston rod of flaring oil cylinder 9, and the piston rod of necking oil cylinder 8 passes through company
Bar 11 is connect with pressing sleeve, and connecting rod 11 is arranged two and two connecting rods 11 are located at the side of necking oil cylinder 8, the length of connecting rod 11
Direction is parallel with the axis of necking oil cylinder 8, and necking oil cylinder 8 drives pressing sleeve to carry out straight line shifting along axial by two connecting rods 11
It is dynamic.
As shown in Figure 7 and Figure 8, it is flared oil cylinder 9 and necking oil cylinder 8 is hydraulic cylinder with double piston rods, be flared oil cylinder 9 and necking
Oil cylinder 8 increases effective heat dissipation area of oil cylinder using layout type one in front and one in back, and expand the sky of oil cylinder heat dissipation
Between, avoid oil cylinder from phenomena such as fever is fast, heat dissipation is slow occur.It is flared oil cylinder 9 and necking oil cylinder 8 is not in that high temperature is climbed at runtime
Row, the sealing element loss rate being flared inside oil cylinder 9 and necking oil cylinder 8 will decline, and the service life of two oil cylinders can obtain
Extend, the stability of the influence oil cylinder of high temperature will be obviously improved yet.Common hydraulic cylinder with double piston rods is simple due to it
Structure, is dismantled in maintenance and replacement sealing element is very convenient, substantially reduces maintenance time.When avoiding maintenance of equipment simultaneously
Downtime is too long, and damp production is led to problems such as to influence production efficiency.
As shown in Figure 1, Figure 2, shown in Fig. 9 to Figure 11, fuel tank 6 is that necking oil cylinder 8 and flaring oil cylinder 9 provide hydraulic oil, and fuel tank 6 wraps
Include the main box for storing hydraulic oil, the first upper cover plate 603 for being set on main box and the second upper cover plate 604 and setting
Inside main box and make hydraulic oil by the guiding device of setting path flowing.Main box is the square of top opening and inner hollow
Shape cabinet, the first upper cover plate 603 and the second upper cover plate 604 are used to close the top opening of main box, the first upper cover plate 603 and the
Two upper cover plates 604 are rectangular plate, and the first upper cover plate 603 and the second upper cover plate 604 are to be sequentially arranged along first direction, first party
To for horizontal direction and first direction it is parallel with the length direction of main box.First upper cover plate 603 is equipped with an oil inlet
601, the second upper cover plate 604 is equipped with an inlet port 602, and guiding device is arranged to make the intracorporal hydraulic oil of main tank by setting road
Diameter is flowed to from oil inlet 601 at inlet port 602.Oil inlet 601 is to run through to set along plate thickness direction on the first upper cover plate 603
The circular hole set, inlet port 602 are the circular hole on the second upper cover plate 604 along plate thickness direction through setting, oil inlet 601 and oil suction
The axis of mouth 602 is parallel, and the hydraulic oil in necking oil cylinder 8 and flaring oil cylinder 9 flows into inside fuel tank 6 through oil inlet 601, fuel tank
Hydraulic oil inside 6 flows to necking oil cylinder 8 and flaring oil cylinder 9 through inlet port 602.
As shown in Figure 10, preferably, the first upper cover plate 603 and the second upper cover plate 604 with main box are detachable
Connection.First upper cover plate 603 and the second upper cover plate 604 are fixedly connected by screw with main box, the first upper cover plate 603 and second
Upper cover plate 604 has the through-hole for allowing screw to pass through.First upper cover plate 603 and the second upper cover plate 604 can be removed from main box, be torn open
Just there are enough spaces after opening the first upper cover plate 603 and the second upper cover plate 604, repairs components inside main box and clear
The impurity for managing main tank internal deposition, part more intracorporal than the case that can only be placed under repair before by repairing window are convenient and efficient, it is ensured that
Impurity inside main box also can be cleaned out adequately.
As shown in Figures 9 to 11, main box includes bottom wall 610 and the first lateral wall being vertically installed on bottom wall 610
606, the second lateral wall 607, third lateral wall 608 and the 4th lateral wall 609, the first lateral wall 606 and third lateral wall 608 are
It is oppositely arranged and the first lateral wall 606 and third lateral wall 608 is parallel, the second lateral wall 607 and the 4th lateral wall 609 are phase
To setting and the second lateral wall 607 and the 4th lateral wall 609 it is parallel, the length of the first lateral wall 606 and third lateral wall 608
Direction is parallel with second direction, and second direction is horizontal direction and second direction is parallel with the width direction of main box, the
The length direction of two lateral walls 607 and the 4th lateral wall 609 is parallel with first direction, and first direction mutually hangs down with second direction
Directly.Bottom wall 610 is located at the bottom of main box, the first lateral wall 606, the second lateral wall 607, outside third lateral wall 608 and the 4th
Side wall 609 is fixedly connected with bottom wall 610 and the first lateral wall 606, the second lateral wall 607, third lateral wall 608 and the 4th outside
Wall 609 extends towards the top of bottom wall 610, bottom wall 610, the first lateral wall 606, the second lateral wall 607, third lateral wall 608
It is rectangular plate with the 4th lateral wall 609, the edges at two ends of the first lateral wall 606 and third lateral wall 608 is respectively with second
Lateral wall 607 is fixedly connected with the edges at two ends of the 4th lateral wall 609, and the hollow cavity of the main box of formation is rectangular cavities.
As shown in Figures 9 to 11, guiding device is set in the hollow cavity of main box, and guiding device includes the first deflector and second
Deflector, the first deflector are located at the lower section of oil inlet 601, and the second deflector is located at the lower section of inlet port 602, the first deflector
It is L shape with the second deflector, sets path as S-shaped.First deflector includes the first plate body 611 and the second plate body being connected
612, the second deflector includes the third plate body 613 and the 4th plate body 614 being connected, and the first plate body 611 and third plate body 613 are
It is oppositely arranged and has between the first plate body 611 and third plate body 613 gap for allowing hydraulic oil to pass through, the first plate body 611 and the
Three plate bodys 613 are connect with main box.First plate body 611, the second plate body 612, third plate body 613 and the 4th plate body 614 are square
Shape plate, the first plate body 611, the second plate body 612, third plate body 613 and the 4th plate body 614 are vertically installed on bottom wall 610, the
One plate body 611, the second plate body 612, third plate body 613 and the 4th plate body 614 extend towards the top of bottom wall 610, the first water conservancy diversion
Plate is located at the lower section of the first upper cover plate 603, and the second deflector is located at the lower section of the second upper cover plate 604.First plate body 611 and third
The length direction of plate body 613 is parallel with second direction, the length direction and first party of the second plate body 612 and the 4th plate body 614
To parallel, the first plate body 611 and third plate body 613 are parallel with the first lateral wall 606, the second plate body 612 and the 4th plate body
614 is parallel with the second lateral wall 607, one end on the length direction of the first plate body 611 and the fixed company of the 4th lateral wall 609
It connects, the other end on the length direction of the first plate body 611 is fixedly connected with one end of the second plate body 612, the length of third plate body 613
One end on degree direction is fixedly connected with the second lateral wall 607, the other end and the 4th plate on the length direction of third plate body 613
One end of body 614 is fixedly connected.Second plate body 612 is between the first lateral wall 606 and the first plate body 611, the second plate body 612
Extend along first direction towards at the first lateral wall 606, has between the second plate body 612 and the first lateral wall 606 and allow hydraulic oil
By gap, the axis of oil inlet 601 and the second plate body 612 are located at the same side of the first plate body 611.4th plate body 614
Between third lateral wall 608 and third plate body 613, the 4th plate body 614 is along first direction towards prolonging at third lateral wall 608
It stretches, there is the gap for allowing hydraulic oil to pass through, the axis of inlet port 602 and the 4th between third plate body 613 and third lateral wall 608
Plate body 614 is located at the same side of third plate body 613.First plate body 611 and third plate body 613 are located at parallel with second direction
On same straight line, the first deflector and the second deflector are matched, so that the hydraulic oil in main box is flowed by the setting path of S-shaped
It is dynamic.Hydraulic oil in hydraulic system with high temperature enters in main box from oil inlet 601, and guiding device has been obstructed with high temperature
Hydraulic oil is fed directly to inlet port 602, and hydraulic oil will flow in main box along the first deflector and the second deflector
It is dynamic, extend the flow path of hydraulic oil, it is ensured that high-temperature oil liquid can quickly radiate in box house, and oil temperature is avoided to increase
Fastly, the problems such as oil liquid temperature is high occurs, while solving oil liquid again and radiating in cabinet non-uniform phenomenon, to ensure that hydraulic
The stability of executive component work, indirectly improves product yield.
As shown in Figure 1, Figure 2, shown in Figure 12 to Figure 14, sizing mill of the invention further include the motor 2 being set on fuel tank 6,
Solenoid valve block 4 and the oil pump 3 connecting with motor 2, oil pump 3 and motor 2 are fixedly installed on the top surface of fuel tank 6, and oil pump 3 is used
In providing hydraulic oil to flaring oil cylinder 9 and necking oil cylinder 8, oil pump 3 is connect with fuel tank 6, flaring oil cylinder 9 and necking oil cylinder 8.Oil pump
3 preferably pair vane pump, motor 2 are used to provide the power for operating oil pump 3, and oil pump 3 has an inlet port 303, one
A first oil outlet 301 and second oil outlet 302, the inlet port 303 of oil pump 3 are connected to the inlet port 602 of fuel tank 6, oil
When 3 operating of pump, the hydraulic oil in fuel tank 6 flows into oil pump 3 through inlet port 303.When carrying out expanding to pipe fitting, oil pump 3
In hydraulic oil through the first oil outlet 301 flow to flaring oil cylinder 9；When carrying out necking processing to pipe fitting, the hydraulic oil warp of oil pump 3
Second oil outlet 302 flows to necking oil cylinder 8.
As shown in Figure 1, Figure 2, shown in Figure 12 to Figure 14, oil pump 3 and motor 2 are fixedly installed on the second upper cover plate 604 of fuel tank 6
On, the first oil outlet 301 of oil pump 3 is connect by solenoid valve block 4 with the oil inlet 601 of fuel tank 6, the second oil outlet of oil pump 3
302 are connect by another solenoid valve block 4 with the oil inlet 601 of fuel tank 6, and solenoid valve block 4 is preferably electromagnetic pilot overflow valve, electromagnetism
Valve group 4 is fixedly installed on the first upper cover plate 603 of fuel tank 6, the oil inlets of two solenoid valve blocks 4 by oil pipe respectively with oil pump
3 the first oil outlet 301 and the connection of the second oil outlet 302, the oil outlet of solenoid valve block 4 pass through the oil inlet of oil pipe and fuel tank 6
601 connections.Sizing mill of the invention uses a motor 2 instead in fuel system and pair vane pump is driven to carry out fuel feeding, in this way
Equipment cost is saved, while also reducing equipment overall dimensions, reduces occupation area of equipment.It is added in hydraulic system
Electromagnetic pilot overflow valve, the oil liquid that equipment duplex pump when standby is confessed directly pass through oil return line and are flowed into fuel tank 6, in this way
There will be no pressure in hydraulic system, eject from damaged oil pipe so as to avoid hydraulic oil and hurt operator.Electromagnetism
Valve group 4 can be by manually adjusting output pressure, to guarantee that the operating pressure of sizing mill is in zone of reasonableness.Solenoid valve block 4 is normal
Valve opening door.When equipment workpieces processing time interval is more than 2s, the PLC in circuit system can give one electricity of electromagnetic pilot overflow valve
Signal, electromagnetic pilot overflow valve obtain the movement of signal back valve core, and electromagnetic pilot overflow valve becomes normally closed by normally opened, and oil pump 3 is confessed
Oil liquid will be fed directly in fuel tank 6 (system working pressure will become zero at this time).Operating pressure is zero, even if working oil path
In oil pipe it is damaged, oil liquid will not be ejected from oil pipe, will not thus be damaged to operator.
As shown in Figure 1, Figure 2, shown in Figure 12 to Figure 14, sizing mill of the invention further includes for reducing the air-cooled of hydraulic fluid temperature
But device 1, air cooler 1 and solenoid valve block 4 are to be oppositely arranged, and air cooler 1 is fixedly installed on the first upper cover plate 603, fuel tank 6
Oil inlet 601 between air cooler 1 and solenoid valve block 4.Air cooler 1 be use air as the medium of heat exchange into
The cooler of row heat exchange, heat are taken away by air, also referred to as aerial cooler.Air cooler 1 is arranged two, two wind
Cooler 1 is respectively to be oppositely arranged with a solenoid valve block 4, and two air coolers 1 are in and the with a solenoid valve block 4 respectively
On the parallel same straight line in two directions, two air coolers 1 are arranged side by side and two air coolers 1 are in and first direction
On parallel same straight line.Motor 2 is located at the same side of two solenoid valve blocks 4 and two air coolers 1, by motor 2
It is placed directly in side individually to radiate, in order to avoid the high temperature that motor 2 generates directly influences solenoid valve block 4, while increasing wind again
Cooler 1 being capable of rapid cooling with the high-temperature oil liquid ensured in hydraulic system.Two typhoon coolers 1 are inhaled from 4 side of solenoid valve block
Enter cold wind, is discharged finally by the fan side in air cooler 1, can not only quickly reduce oil liquid in hydraulic system in this way
Temperature can also reduce the temperature of solenoid valve block 4.
As shown in Figure 1, Figure 2, shown in Figure 12 to Figure 14, sizing mill of the invention further includes the water cooling for reducing hydraulic fluid temperature
But device 10, water cooler 10 are fixedly connected with fuel tank 6, and water cooler 10 is located at the lower section of air cooler 1.Water cooler 10 is located at
In the hollow cavity of main box, water cooler 10 cools down to the hydraulic oil in fuel tank 6, and cooling water flows in water cooler 10
Dynamic, high temperature hydraulic oil is flowed through from the outside of water cooler 10, the heat exchange that hydraulic oil and cooling water pass through 10 surface of water cooler
Play the role of heat dissipation, 10 radiating efficiency of water cooler is high, compact-sized.There are inlet and outlet, water on water cooler 10
The external cooling water supplied of inlet and outlet connection of cooler 10.
The present invention is exemplarily described in conjunction with attached drawing above.Obviously, present invention specific implementation is not by above-mentioned side
The limitation of formula.As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out；Or not
It is improved, above-mentioned conception and technical scheme of the invention are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (10)
1. sizing mill, for carrying out flaring and necking processing to pipe fitting comprising fuel tank and plug die, pipe fitting are automobile exhaust
Pipe；Plug die includes rise core, flaring die and the reducing die that is sheathed on flaring die, and there is the core that rises the flaring in insertion flaring die to drive
Dynamic portion, flaring die are made of multiple flaring mold sections circumferentially, it is characterised in that: the flaring driving portion is eight prismatics
Structure, flaring driving portion have eight drive surfaces circumferentially, and the flaring mold section has the cooperation with driving face contact
Face, drive surface and mating surface are plane；
The sizing mill further includes necking oil cylinder, connect with the core that rises and is used to control the flaring that the core that rises move alongs the axial direction
Oil cylinder and the bracket being fixedly installed on the top surface of fuel tank, plug die are set on bracket；
The plug die further includes shell and the pressing sleeve that is sheathed on reducing die, and necking oil cylinder is carried out for controlling pressing sleeve along axial
It is mobile；Shell is fixedly connected with bracket, and shell play the guiding role to necking mold section and flaring mold section, one end insertion of necking mold section
In shell, in the centre bore of the other end insertion pressing sleeve of necking mold section, it is flared in one end insertion shell of mold section, is flared mold section
The other end is inserted into the centre bore of reducing die；
Between the plug die and the necking oil cylinder, flaring oil cylinder, plug die and necking oil cylinder are the flaring oil cylinder
Coaxial arrangement, is flared oil cylinder and necking oil cylinder is hydraulic cylinder with double piston rods, and the piston rod of necking oil cylinder passes through connecting rod and pressing sleeve
Connection；
The sizing mill further include solenoid valve block, for reducing the air cooler of hydraulic fluid temperature, for hydraulic in fuel tank
Water cooler, the motor being set on fuel tank and the oil pump being connect with motor, air cooler and the electromagnetism that oil cools down
Valve group is to be oppositely arranged, and for the oil inlet of fuel tank between air cooler and solenoid valve block, water cooler is located at air cooler
Lower section；It is respectively to be oppositely arranged with a solenoid valve block that two and two air coolers, which are arranged, in air cooler, two air coolers
It is on the same straight line parallel with second direction with a solenoid valve block respectively, two air coolers are row's setting and two
Air cooler is on the same straight line parallel with first direction；
Oil pump is used to provide flaring oil cylinder and necking oil cylinder in hydraulic oil, and oil pump is connect with fuel tank, flaring oil cylinder and necking oil cylinder,
Motor is located at the same side of two solenoid valve blocks and two air coolers.
2. sizing mill according to claim 1, it is characterised in that: the drive surface is that the width of tapered plane and drive surface is
Be gradually reduced since one end to the other end, between the maximum one end of the width of drive surface and the axis of the core that rises it is vertical away from
From the vertical range between the smallest one end of width and the axis for the core that rises for being less than drive surface.
3. sizing mill according to claim 1, it is characterised in that: the connecting rod is arranged two and two connecting rods are located at
The length direction of the side of necking oil cylinder, connecting rod is parallel with the axis of necking oil cylinder, and necking oil cylinder is driven by two connecting rods
Pressing sleeve moves linearly along axial direction.
4. sizing mill according to claim 1, it is characterised in that: the fuel tank includes the main tank for storing hydraulic oil
It body, the first upper cover plate being set on main box and the second upper cover plate and is set to inside main box and makes hydraulic oil by setting
The guiding device of path flowing.
5. sizing mill according to claim 4, it is characterised in that: first upper cover plate is equipped with oil inlet, and described the
Two upper cover plates are equipped with inlet port, and guiding device is arranged to make the intracorporal hydraulic oil of the main tank by setting path from oil inlet
It flows at inlet port.
6. sizing mill according to claim 5, it is characterised in that: first upper cover plate and second upper cover plate and institute
Stating main box is detachable connection.
7. sizing mill according to claim 5, it is characterised in that: the guiding device includes that the first deflector and second is led
Flowing plate, the first deflector are located at the lower section of the oil inlet, and the second deflector is located at the lower section of inlet port, the first deflector and
Two deflectors are L shape, and S-shaped is in the path that sets.
8. sizing mill according to claim 7, it is characterised in that: first deflector includes the first plate body being connected
With the second plate body, second deflector includes the third plate body and the 4th plate body being connected, and the first plate body and third plate body are
It is oppositely arranged and there is the gap for allowing hydraulic oil to pass through, the first plate body and third plate body and institute between the first plate body and third plate body
State main box connection.
9. sizing mill according to claim 8, it is characterised in that: the main box includes bottom wall and is vertically installed in bottom
The first lateral wall, the second lateral wall, third lateral wall and the 4th lateral wall on wall, the length of first plate body and third plate body
Degree direction is parallel with second direction, and the length direction of the second plate body and the 4th plate body is parallel with first direction, the second plate body
Between the first lateral wall have allow hydraulic oil to pass through gap, the 4th plate body between third lateral wall and third plate body,
There is the gap for allowing hydraulic oil to pass through between third plate body and third lateral wall.
10. sizing mill according to any one of claims 1 to 9, it is characterised in that: the oil pump is pair vane pump；Oil pump
It is connected to an inlet port, first oil outlet and second oil outlet, the inlet port of oil pump with the inlet port of fuel tank,
When oil pump operates, the hydraulic oil in fuel tank flows into oil pump through inlet port, and the first oil outlet of oil pump passes through solenoid valve block and oil
The oil inlet of case connects, and the second oil outlet of oil pump is connected by the oil inlet of another solenoid valve block and fuel tank, and solenoid valve block is
Electromagnetic pilot overflow valve；When carrying out expanding to pipe fitting, the hydraulic oil in oil pump flows to flaring oil cylinder through the first oil outlet；
When carrying out necking processing to pipe fitting, the hydraulic oil of oil pump flows to necking oil cylinder through the second oil outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810234592.1A CN108405737B (en) | 2018-03-21 | 2018-03-21 | Sizing mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810234592.1A CN108405737B (en) | 2018-03-21 | 2018-03-21 | Sizing mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108405737A CN108405737A (en) | 2018-08-17 |
| CN108405737B true CN108405737B (en) | 2019-11-08 |
Family
ID=63133128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810234592.1A Active CN108405737B (en) | 2018-03-21 | 2018-03-21 | Sizing mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108405737B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153298A (en) * | 2019-06-27 | 2019-08-23 | 烟台豪德博尔机械设备有限公司 | Steel pipe bell and spigot automatic moulding production line |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050035773A (en) * | 2003-10-14 | 2005-04-19 | 재성산업주식회사 | Apparatus for enlarging inside diameter of pipe end |
| CN201116553Y (en) * | 2007-05-25 | 2008-09-17 | 昆明理工大学 | Oil tank with built-in filtering plate |
| NL2005086C2 (en) * | 2009-10-16 | 2012-11-05 | Fontijne Grotnes B V | Device for forming a flared hoop, mandrel, method for forming a flared hoop, flared hoop. |
| CN103182459A (en) * | 2013-03-21 | 2013-07-03 | 镇江市恒源汽车零部件有限公司 | Pipe fitting sizing mould |
| CN106424347A (en) * | 2016-05-27 | 2017-02-22 | 镇江市恒源汽车零部件有限公司 | Rounding and sizing processing mould for pipe fittings |
| CN205763439U (en) * | 2016-05-28 | 2016-12-07 | 镇江市恒源汽车零部件有限公司 | A kind of pipe fitting scalable mouth processing mold |
| CN106903231A (en) * | 2017-01-24 | 2017-06-30 | 宁波菲力克汽配有限公司 | A kind of port forming machine |
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2018
- 2018-03-21 CN CN201810234592.1A patent/CN108405737B/en active Active
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| Publication number | Publication date |
|---|---|
| CN108405737A (en) | 2018-08-17 |
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