CN107639136A - A kind of valve straightener - Google Patents
A kind of valve straightener Download PDFInfo
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- CN107639136A CN107639136A CN201711098129.0A CN201711098129A CN107639136A CN 107639136 A CN107639136 A CN 107639136A CN 201711098129 A CN201711098129 A CN 201711098129A CN 107639136 A CN107639136 A CN 107639136A
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- valve
- cone pulley
- main shaft
- swing arm
- workpiece
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Abstract
The invention discloses a kind of valve straightener, transverse strands are provided with feeding main shaft, blanking main shaft and swing arm locating shaft between two plenum chambers of upper box, swing arm locating shaft is provided with swing arm, alignment axle is set on the forearm of swing arm, it is close under the driving of hydraulic pump or servomotor, extrude and correct the bar portion and pan portion of valve workpiece；It the advantage is that：1st, alignment precision can be lifted and prevent workpiece to get stuck, ensure that the normal aspect of machine run plays important guaranteeing role；2 using hydraulic system oil cylinder or servomotor to drive swing arm, and controlled by program, realize F.F. slow-motion, move back rewind slowly, the alignment disk roller alignment time lengthening of the contact with valve workpiece made, can pressed stem bounce-back, reduction stress subtracts life；3 are provided with support finger, can offset valve workpiece centrifugal force, the motion rule mark of pressure beam valve workpiece, it is fallen into discharging opening；And help finger that the center of gravity of valve workpiece with adjusting position, can be kept so that in horizontality.
Description
Technical field
The present invention relates to a kind of plant equipment for being used to correct the morpheme meter of machined part；Specifically a kind of valve
Straightener.
Background technology
Valve is typically all using within the engine, and it needs the high-frequency reciprocating in the environment of HTHP to operate, to size
The requirement of tolerance, form and position tolerance and mechanical strength is all higher；Valve includes bar portion and pan portion, is all to be heat-treated after processing,
It is yielding after heated.
In order to correct, the scheme initially found out is similar to thread rolling machine, and two rotary shaft vertical rotatings clamp and correct valve
Workpiece；The correction of three axles is later developed into, axle becomes trunnion axis.
Patent CN201410405107.4 discloses a kind of valve straightener of three axle correction, and the principle of alignment is in fact
It is three axles extruding bar portion so that bar portion can deform upon according to design requirement；Simultaneously with correction cone pulley extruding disk portion so that two
The form tolerance at individual position can be improved.
Plant machinery in this application is simple, valve workpiece is always maintained at horizontal support organization at work,
Also it is not out of order easily without the support organization of constraint valve workpiece motion s rule mark, equipment；Because valve workpiece pan portion weight, easily
Skew back.
This patent is to be clipped in first axle and second close to first axle and the second axle, common extruding with the 4th axle by the way of
Engine valve stem between axle, the 4th axle only could be corrected work close to engine valve stem when swing arm swings to end points, contact
And it is short to squeeze the positive time；Engine valve stem is slim-lined construction, resilience is also occurred that after being squeezed, to cause the shape after engine valve stem resilience
Position tolerance can reach design requirement, so, during design, it is necessary to the motion end points of the 4th axle forward by so that extruding
When form and position tolerance beyond requiring, then wait to recoil in the range of rational Geometrical Tolerance Principle；Popular says, is not bar portion arch
Rise it is how many, equipment squeeze it is straight how many, but than bar portion central axis further along squeeze it is straight；This design can cause valve stem
New stress concentration is generated in the extruded part in portion, impairs tensile strength and fatigue limit.
The content of the invention
The present invention in view of the shortcomings of the prior art, provide can valve workpiece skew back will not occur, correction mass can be lifted,
The setting extruding alignment time, under conditions of form and position tolerance is ensured, reduce a kind of gas that valve stem local stress does not damage valve
Door straightener.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：A kind of valve straightener, bag
Including the upper box stacked and lower box, upper box or so respectively has a plenum chamber, and the plenum chamber in left side is built-in with perpendicular
To transmission main shaft, transverse strands are provided with feeding main shaft, blanking main shaft and swing arm locating shaft, the feeding master between two plenum chambers
Axle and the blanking main shaft are connected by turbine worm structure with described transmission main shaft, and the transmission main shaft is provided by motor
Power；Swing arm is installed on the swing arm locating shaft, the swing arm includes a pair of forearms and a pair of tail arm, the forearm it
A structure of an essay is provided with alignment axle, is provided with swivel in the tail arm, the swivel has drive mechanism；From a left side on feeding main shaft
Two upper roll wheels and a upper limit cone pulley are sequentially installed to the right side, material receiving port, the blanking master are provided with the upper roll wheel
Two lower roll wheels and lower limit cone pulley are from left to right sequentially installed on axle, are provided with discharging opening on the lower roll wheel, it is described on
Disk roller is corresponding with the lower roll wheel, and the upper limit cone pulley is corresponding with the lower limit cone pulley, jointly against valve workpiece
Pan portion baseplane so that the bar portion of valve workpiece charging with discharging when skew back will not occur；On the alignment axle from a left side to
The right side is sequentially provided with two alignment disk rollers and a correction cone pulley, and pan portion cone is provided with the madial wall of the plenum chamber on right side
Wheel assembly, the pan portion cone pulley component are longitudinally disposed；Under swing arm driving, the alignment disk roller, which approaches and is straightened to be clamped in, to be connect
The bar portion of valve workpiece between material mouth, the correction cone pulley complete the pan portion correction of valve workpiece close to pan portion cone pulley component.
The centre of two plenum chambers also transverse strands are provided with a dead man axle, and the operation of Constrained valve is installed on the dead man axle
Advise support finger and the single action cylinder of mark, by the single action cylinder come push away help the finger make valve workpiece do not get stuck it is not outer alter,
And valve can be helped according to the loading and unloading direction of motion of valve workpiece.
Inclined-plane gear wheel is additionally provided with the feeding main shaft and/or puts flitch；The inclined-plane gear wheel is arranged on upper roll wheel,
It is domatic towards upper limit cone pulley；The flitch of putting is synthesized by two pieces of thin plates, the axis projection one of overall and upper roll wheel or lower roll wheel
Cause, be fixed on the left surface of upper roll wheel and/or lower roll wheel；Coning correction wheel locking device is installed in the right end of feeding main shaft.
The drive mechanism includes hydraulic system and oil cylinder, and the oil cylinder front end connects the swivel by piston rod
On；The rear end of the oil cylinder is provided with regulation screw mandrel, and adjustment gear disk, the adjustment gear disk are provided with the regulation screw mandrel
It is connected by travelling gear with regulation scale gear；The side of the oil cylinder is provided with switch bracket, pacifies on the sensing support
Equipped with proximity switch.
The pan portion cone pulley component includes cone pulley fixed seat, and the cone pulley fixed seat is built-in with cone pulley axle, the cone pulley axle
Rear end be provided with adjusting handle, centre is provided with locking wrench, and front end is provided with rolling bearing, set outside the rolling bearing
There is fixed tiltedly wheel, the termination that the fixation is tiltedly taken turns is provided with capping；The cone pulley fixed seat is arranged in the side wall of plenum chamber, institute
State the pan portion that fixed tiltedly wheel corrects valve workpiece with the correction cone pulley jointly.
Feed device is provided with above the upper box, the feed device includes material road clamping plate, material road pressing plate, pressing plate
Height adjustment seat and middle blowing bar, clamping plate mounting seat, terminal blowing cylinder and termination valve restraint device；Valve workpiece along
The material road clamping plate glides and enters the material receiving port in the presence of the termination valve restraint device, and the termination valve is about
Bundle device is arranged on the outer side edges of material road clamping plate and had perpendicular to the medial surface of plenum chamber, the termination valve restraint device
Two baffle plates, the baffle plate is parallel to upper roll wheel plane.
The upper box is iron casting, and lubricating system is provided with the plenum chamber in left side；The plenum chamber on right side is upward
Portable lamp, three color warning lamps and rotation process control cabinet are provided with face；Also set up in space between two plenum chambers
There is the framework of profile shapes, front and rear two sides is glass sliding door, and the mounting seat clamping plate mounting seat is fixed on the top of the framework
Along upper.
The lower box is metal plate weldment, and the right side of the lower box is oil groove, and hydraulic pump is provided with capping, is dissipated
Hot blast and hydraulic valve bank, the oil groove set thermometer towards lateral surface, and side is provided with straightener source of the gas inwardly；Lower box
Left side is motor housing and distribution box, and the motor is placed in the motor housing.
The drive mechanism includes servomotor and motor rack, and the motor rack is arranged on the interior plate of lower box, institute
The expansion link for stating servomotor is arranged on swivel.
The present invention compared with prior art, has the advantages that：1st, upper limit cone pulley and lower limit cone pulley are provided with
When can work, the pan portion of valve workpiece is withstood so that the bar portion of valve workpiece is at horizontal normal shape, is straightened for lifting
Precision and prevent workpiece to get stuck, ensure that the normal aspect of machine run plays important guaranteeing role；2 using hydraulic pump or servo electricity
Machine is controlled to drive swing arm by program, can make it that alignment axle speed when close to valve workpiece is adjustable, be realized
F.F. slow-motion, moves back rewind slowly, alignment disk roller contact with the valve workpiece alignment time lengthening made, can pressed stem rebound, subtract
Few stress subtracts life；3 are provided with support finger, can offset valve workpiece centrifugal force, the motion rule mark of pressure beam valve workpiece, make it
Fall into discharging opening；And help finger that the center of gravity of valve workpiece with adjusting position, can be kept so that in horizontality；4、
It is different according to the shape of valve workpiece, it has been also provided with inclined-plane gear wheel and/or has put flitch so that valve workpiece center of gravity is put down
Surely, it is not easy to tilt.
Brief description of the drawings
Fig. 1 is the front view of the embodiment of the present invention 1.
Fig. 2 is the front isometric view of the embodiment of the present invention 1.
Fig. 3 is the back side isometric view of the embodiment of the present invention 1.
Fig. 4 is the bottom surface isometric view of the embodiment of the present invention 1.
Fig. 5 is the upper box and lower box of the embodiment of the present invention 1.
Fig. 6 is the front view of the internal mechanism figure of the embodiment of the present invention 1.
Fig. 7 is the rear view of the internal mechanism figure of the embodiment of the present invention 1.
Fig. 8 is the side edge view of the internal mechanism of the embodiment of the present invention 1.
Fig. 9 is the axle surveys view of the internal mechanism of the embodiment of the present invention 1.
Figure 10 is the pan portion cone pulley component B of the embodiment of the present invention 1 part drawing.
Figure 11 is the feed device C of the embodiment of the present invention 1 part drawing.
Figure 12 is the drive mechanism A of the embodiment of the present invention 1 part drawing.
Figure 13 is the place Local map of part dead man axle 21 of the embodiment of the present invention 1.
Figure 14 is the servomotor part drawing of the embodiment of the present invention 2.
Figure 15 is the complete machine profile of the servo valve straightener of the embodiment of the present invention 2.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：As shown in figures 1-15, mark
It is as follows：Drive mechanism A, pan portion cone pulley component B, feed device C, upper box 01, plenum chamber 011, lower box 02, oil groove 021, biography
It is dynamic main shaft 03, feeding main shaft 04, blanking main shaft 05, swing arm locating shaft 06, turbine worm structure 07, motor 08, swing arm 09, preceding
Arm 091, tail arm 092, alignment axle 10, upper limit cone pulley 12, upper roll wheel 13, material receiving port 131, lower limit cone pulley 14, lower roll wheel 15,
Discharging opening 151, valve workpiece 16, correction cone pulley 17, alignment disk roller 18, three color warning lamps 19, dead man axle 21, single action cylinder 22,
Help finger 23, inclined-plane gear wheel 27, put flitch 28, coning correction wheel locking device 29, oil cylinder 30, swivel 31, regulation screw mandrel
32nd, adjustment gear disk 33, travelling gear 34, regulation scale gear 35, switch bracket 36, proximity switch（Do not marked in figure）, cone
Take turns fixed seat 38, cone pulley axle 39, adjusting handle 40, locking wrench 41, rolling bearing 42, fixed tiltedly wheel 43, capping 44, material road folder
Plate 45, material road pressing plate 46, platen elevation adjustment seat 47, middle blowing bar 48, clamping plate mounting seat 49, terminal blowing cylinder 50, end
Head valve restraint device 51, baffle plate 511, rotation process control cabinet 52, portable lamp 53, framework 54, hydraulic pump 55, radiator fan
56th, hydraulic valve bank 57, thermometer 58, straightener source of the gas 59, motor housing 60, distribution box 61, servomotor 62, motor rack 63.
A kind of valve straightener includes the upper box 01 and lower box 02 stacked, and respectively there is a sky left and right of upper box
Chamber 011, the plenum chamber in left side are built-in with vertical transmission main shaft 03, and transverse strands are provided with feeding main shaft between two plenum chambers
04th, blanking main shaft 05 and swing arm locating shaft 06, feeding main shaft and blanking main shaft by turbine worm structure 07 and transmission master
Axle is connected, and transmission main shaft provides power by motor 08；Swing arm 09 is installed, swing arm includes a pair of forearms on swing arm locating shaft
091 and a pair of tail arm 092, setting up between forearm has alignment axle 10, is provided with swivel in tail arm, swivel has driving machine
Structure；Two upper roll wheels 13 and a upper limit cone pulley 12 are from left to right sequentially installed on feeding main shaft, are provided with upper roll wheel
Material receiving port 131, is from left to right sequentially provided with two lower roll wheels 15 and a lower limit cone pulley 14 on blanking main shaft, on lower roll wheel
Discharging opening 151 is provided with, upper roll wheel is corresponding with lower roll wheel, and upper limit cone pulley is corresponding with lower limit cone pulley；Be straightened axle on from
It is left-to-right to be sequentially provided with two alignment disk rollers 18 and a correction cone pulley 17, it is provided with pan portion cone on the madial wall of plenum chamber
Wheel assembly B, pan portion cone pulley component are longitudinally disposed；Swing arm driving under, alignment disk roller approach and be straightened be clamped in material receiving port it
Between valve workpiece bar portion, correction cone pulley close to pan portion cone pulley component complete valve workpiece pan portion correction.
Valve workpiece is announced into the mode of discharging opening 151 and patent CN201410405107.4 from material receiving port 131,
But more upper limit cone pulleys and lower limit cone pulley, both corresponding settings, jointly against the pan portion baseplane of valve workpiece 16, make
Valve workpiece bar portion in charging with skew back will not occur during discharging, this alignment precision to more preferable lifting workpieces.
The centre of two plenum chambers also transverse strands are provided with a dead man axle 21, and Constrained valve operation rule are installed on dead man axle
The support finger 23 of mark and single action cylinder 22, by single action cylinder come push away handrail instigate valve workpiece do not get stuck it is not outer alter, and can root
Valve is helped according to the loading and unloading direction of motion of valve workpiece.
Different valve workpiece is directed to, inclined-plane gear wheel 27 is additionally provided with feeding main shaft and/or puts flitch 28；Inclined-plane is kept off
Wheel is arranged on upper roll wheel, domatic towards upper limit cone pulley, equivalent to adding a strong point, the shape together with two upper roll wheels
Into three fulcrum structures, it is easier to keep bar portion horizontal；Put flitch to be synthesized by two pieces of thin plates, the axle of overall and upper roll wheel or lower roll wheel
It is consistent to projection, the left surface of upper roll wheel and/or lower roll wheel is fixed on, equivalent to extending upper roll wheel or lower roll wheel width；On
Expect coning correction wheel locking device 29 is installed in the right end of main shaft, for adjusting elasticity and right position.
Drive mechanism can be realized F.F. slow-motion, be moved back rewind slowly with hydraulic pressure pump machanism or servomotor mechanism, both of which
Function, alignment working time for making extends, and so as to reduce excessive alignment, can also reduce new stress and produce.
Drive mechanism includes hydraulic system and oil cylinder 30, and oil cylinder front end is connected 31 on swivel by piston rod；Oil cylinder
Rear end be provided with regulation screw mandrel 32, adjust screw mandrel on adjustment gear disk 33 is installed, adjustment gear disk passes through travelling gear 34
It is connected with regulation scale gear 35；The side of oil cylinder is provided with switch bracket 36, senses and is provided with proximity switch on support.
Drive mechanism includes servomotor 62 and motor rack 63, and motor rack is arranged on the interior plate of lower box, servo electricity
The expansion link of machine is arranged on swivel.
Pan portion cone pulley component includes cone pulley fixed seat 38, and cone pulley fixed seat is built-in with cone pulley axle 39, and the rear end of cone pulley axle is provided with
Adjusting handle 40, centre are provided with locking wrench 41, and front end is provided with rolling bearing 42, and fixed tiltedly wheel is provided with outside rolling bearing
43, the fixed termination tiltedly taken turns is provided with capping 44；Cone pulley fixed seat is arranged in the side wall of plenum chamber, fixed tiltedly wheel and coning correction
The pan portion of the common correction valve workpiece of wheel；Fixed tiltedly wheel can rotate, and reduce friction, lift the life-span.
Feed device C is provided with above upper box, it is high that feed device includes material road clamping plate 45, material road pressing plate 46, pressing plate
Spend adjustment seat 47, middle blowing bar 48, clamping plate mounting seat 49, terminal blowing cylinder 50 and termination valve restraint device 51；Valve
Workpiece is glided along material road clamping plate and enters material receiving port in the presence of the valve restraint device of termination, and termination valve restraint device is pacified
Outer side edges mounted in material road clamping plate and the medial surface perpendicular to plenum chamber, termination valve restraint device have two baffle plates 511,
Baffle plate is parallel to upper roll wheel plane；Flat condition can be changed into material road clamping plate is suspended on, so as into upper roll wheel.
Upper box is iron casting, and lubricating system is provided with the plenum chamber in left side；The plenum chamber on right side towards on above
It is provided with portable lamp 53, three color warning lamps 19 and rotation process control cabinet 52；It is additionally provided with space between two plenum chambers
The framework 54 of profile shapes, front and rear two sides are glass sliding door, and mounting seat clamping plate mounting seat is fixed on the upper edge of the framework.
Lower box is metal plate weldment, and the right side of lower box is oil groove 021, and hydraulic pump 55, radiation air are provided with capping
Fan 56 and hydraulic valve bank 57, oil groove set thermometer 58 towards lateral surface, and side is provided with straightener source of the gas 59 inwardly；Lower box
Left side be motor housing 60 and distribution box 61, motor is placed in motor housing.
Claims (9)
1. a kind of valve straightener, including the upper box stacked（01）And lower box（02）, the left and right of the upper box is each
There is a plenum chamber（011）, the plenum chamber in left side is built-in with vertical transmission main shaft（03）, between two plenum chambers laterally
Erection has feeding main shaft（04）, blanking main shaft（05）With swing arm locating shaft（06）, the feeding main shaft and the blanking main shaft are equal
Pass through turbine worm structure（07）It is connected with described transmission main shaft, the transmission main shaft is by motor（08）Power is provided；It is special
Sign is：Swing arm is installed on the swing arm locating shaft（09）, the swing arm includes a pair of forearms（091）With a pair of tail arm
（092）, setting up between the forearm has alignment axle（10）, swivel is installed in the tail arm（31）, the swivel
There is drive mechanism（A）；Two upper roll wheels are from left to right sequentially installed on feeding main shaft（13）With upper limit cone pulley（12）, it is described
Material receiving port is provided with upper roll wheel（131）, two lower roll wheels are from left to right sequentially installed on the blanking main shaft（15）With under
Spacing cone pulley（14）, discharging opening is provided with the lower roll wheel（151）, the upper roll wheel is corresponding with the lower roll wheel, described
Upper limit cone pulley is corresponding with the lower limit cone pulley, jointly against valve workpiece（16）Pan portion baseplane so that valve work
In charging and discharging skew back will not occur for the bar portion of part；Two alignment disk rollers are from left to right sequentially provided with the alignment axle
（18）With correction cone pulley（17）, pan portion cone pulley component is provided with the madial wall of the plenum chamber（B）, the pan portion cone pulley component
It is longitudinally disposed；Under swing arm driving, the alignment disk roller approaches and is straightened the bar for the valve workpiece being clamped between material receiving port
Portion, the correction cone pulley complete the pan portion correction of valve workpiece close to pan portion cone pulley component.
A kind of 2. valve straightener as claimed in claim 1, it is characterised in that：The centre of two plenum chambers also transverse strands are provided with
One dead man axle（21）, the support finger of Constrained valve operation rule mark is installed on the dead man axle（23）With single action cylinder
（22）, by the single action cylinder come push away help the finger make valve workpiece do not get stuck it is not outer alter, and can be according to the upper of valve workpiece
The blanking direction of motion helps valve.
A kind of 3. valve straightener as claimed in claim 2, it is characterised in that：Inclined-plane gear is additionally provided with the feeding main shaft
Wheel（27）And/or put flitch（28）；The inclined-plane gear wheel is arranged on upper roll wheel, domatic towards upper limit cone pulley；It is described to put material
Plate is synthesized by two pieces of thin plates, overall consistent with the axis projection of upper roll wheel or lower roll wheel, is fixed on upper roll wheel and/or lower roll wheel
Left surface；Coning correction wheel locking device is installed in the right end of feeding main shaft（29）.
A kind of 4. valve straightener as claimed in claim 1, it is characterised in that：The drive mechanism includes hydraulic system and oil
Cylinder（30）, the oil cylinder front end is connected on the swivel by piston rod（31）；The rear end of the oil cylinder is provided with regulation
Screw mandrel（32）, it is described regulation screw mandrel on adjustment gear disk is installed（33）, the adjustment gear disk passes through travelling gear（34）With
Adjust scale gear（35）It is connected；The side of the oil cylinder is provided with switch bracket（36）, it is provided with and connects on the sensing support
Nearly switch.
A kind of 5. valve straightener as claimed in claim 1, it is characterised in that：The pan portion cone pulley component is fixed including cone pulley
Seat（38）, the cone pulley fixed seat is built-in with cone pulley axle（39）, the rear end of the cone pulley axle is provided with adjusting handle（40）, it is middle
It is provided with locking wrench（41）, front end is provided with rolling bearing（42）, the rolling bearing is provided with outside fixes tiltedly wheel（43）, institute
State the fixed termination tiltedly taken turns and be provided with capping（44）；The cone pulley fixed seat is arranged in the side wall of plenum chamber, and the fixation is oblique
Wheel corrects the pan portion of valve workpiece with the correction cone pulley jointly.
A kind of 6. valve straightener as claimed in claim 1, it is characterised in that：Feeding dress is provided with above the upper box
Put（C）, the feed device includes material road clamping plate（45）, material road pressing plate（46）, platen elevation adjustment seat（47）, middle blowing bar
（48）, clamping plate mounting seat（49）, terminal blowing cylinder（50）With termination valve restraint device（51）；Valve workpiece is along the material
Road clamping plate downslide simultaneously enters the material receiving port, the termination valve restraint device in the presence of the termination valve restraint device
Outer side edges installed in material road clamping plate and the medial surface perpendicular to plenum chamber, the termination valve restraint device have two gears
Plate（511）, the baffle plate is parallel to upper roll wheel plane.
A kind of 7. valve straightener as claimed in claim 6, it is characterised in that：The upper box is iron casting, left side
Lubricating system is provided with plenum chamber；The plenum chamber on right side towards being provided with portable lamp on above（53）, three color warning lamps（19）
With rotation process control cabinet（52）；The framework of profile shapes is additionally provided with space between two plenum chambers（54）, it is front and rear
Two sides is glass sliding door, and the mounting seat clamping plate mounting seat is fixed on the upper edge of the framework.
A kind of 8. valve straightener as claimed in claim 1, it is characterised in that：The lower box is metal plate weldment, described
The right side of lower box is oil groove（021）, hydraulic pump is installed on capping（55）, radiator fan（56）And hydraulic valve bank（57）, institute
That states oil groove sets thermometer towards lateral surface（58）, inwardly side be provided with straightener source of the gas（59）；The left side of lower box is electricity
Cabinet（60）And distribution box（61）, the motor is placed in the motor housing.
A kind of 9. valve straightener as described in any one in claim 1,2,3,5,6,7 or 8, it is characterised in that：Institute
Stating drive mechanism includes servomotor（62）And motor rack（63）, the motor rack is arranged on the interior plate of lower box, described
The expansion link of servomotor is arranged on swivel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098129.0A CN107639136B (en) | 2017-11-09 | 2017-11-09 | Valve straightener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098129.0A CN107639136B (en) | 2017-11-09 | 2017-11-09 | Valve straightener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107639136A true CN107639136A (en) | 2018-01-30 |
| CN107639136B CN107639136B (en) | 2023-10-03 |
Family
ID=61125732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711098129.0A Active CN107639136B (en) | 2017-11-09 | 2017-11-09 | Valve straightener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107639136B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB646226A (en) * | 1948-02-27 | 1950-11-15 | Bigwood Joshua & Son Ltd | Improvements in machines for straightening rods or tubes |
| CN2803556Y (en) * | 2005-06-03 | 2006-08-09 | 王虎财 | Petroleum drill rod leveler |
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| CN207592484U (en) * | 2017-11-09 | 2018-07-10 | 宁波日龙自动化设备有限公司 | A kind of valve straightener |
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| 王忠诚;齐乃建;华逢伟;田琳;贺心旺;: "汽车零部件行业热处理节能与减排的途径与方法", 金属加工(热加工), no. 2 * |
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| CN107639136B (en) | 2023-10-03 |
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