CN102989847B - Fixture for machining lifting ring of car coupler of locomotive and manufacturing process thereof - Google Patents
Fixture for machining lifting ring of car coupler of locomotive and manufacturing process thereof Download PDFInfo
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- CN102989847B CN102989847B CN201210501472.6A CN201210501472A CN102989847B CN 102989847 B CN102989847 B CN 102989847B CN 201210501472 A CN201210501472 A CN 201210501472A CN 102989847 B CN102989847 B CN 102989847B
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Abstract
The invention discloses a fixture for machining a lifting ring of a car coupler of a locomotive and a manufacturing process thereof. The fixture comprises a bottom board, a positioning board and a group of pins; a threaded hole is arranged on the positioning board; a round ring end of the lifting ring of the car coupler is fastened on the positioning board through a screw; the pins are fixedly arranged on the bottom board; and the positions of the pins are matched with the shape of a connection section of the lifting ring of the car coupler. The fixture is manufactured by heating and bending in a subsection manner for many times. The labor intensity of an operator can be greatly reduced through a positioning and bending die and a special push rod, which are used in a bending process, and the used lever principle. The fixture is applicable to production of the lifting ring of the car coupler.
Description
Technical field
The present invention relates to locomotive hoisting mechanism technical field.
Background technology
Locomotive drop handle is a part for hitch hoisting mechanism, and two ends and middle part interconnect with hook shadoof and hook lock respectively, by the rotation up and down of drop handle, hook lock can be promoted and fall, and then completes the opening and closing movement of hitch.
Take HXN3 type locomotive as example, profile is similar to Yishanmen, as shown in Figure 1, material is the solid steel of Q235A, specification is Φ 25mm, the only tri-state effect of the accuracy guarantee hitch of guaranteed its appearance and size in production, the transportation safety of assurance vehicle, but its unique contour structures causes current bending ram equipment to be difficult to the production of this product.
Existing technique one: adopt bending machine to produce, length first is as required sheared raw material, and then, from one end, shape is as required carried out brake forming successively.The shortcoming of this technique is, because this product adopts the solid steel of Q235A, resistance of deformation is larger, deformation process needs local or whole heating, heating-up temperature is up to more than 1000 ℃, and bending machine institute bend is hollow tube and is normal temperature state, so cannot adopt.
Existing technique two: adopt bar flexural center to produce, length first is as required sheared raw material, then carries out successively brake forming according to order middle behind first two ends.Its shortcoming is: the traveling portion of bar flexural center can only planar move reciprocatingly, thus for drop handle is this, in two vertical planes, all there is diastrophic product, cannot clamped one time brake forming; The arc upper beam of "door" type structure cannot moulding in flexural center.If so adopt flexural center to produce, must increase aided process, and make a large amount of location and bending mould, production cost is larger; Apparatus expensive, is not suitable for small lot batch manufacture.
Summary of the invention
Technical problem solved by the invention is to provide a kind of locomotive coupler drop handle manufacturing process simple to operate.
The technical solution used in the present invention is, locomotive coupler drop handle manufacturing process, adopt the frock of following structure: comprise base plate, location-plate and 4 pins, location-plate is provided with screwed hole, the annulus end of hitch drop handle by bolted in location-plate, pin is fixed on base plate, and the shape of the linkage section of the position of pin and hitch drop handle is suitable.
Procedure of processing is as follows:
A) blanking, intercepting bar;
B) bending, is used 20T hydraulic press to carry out brake forming to bar two ends, makes the annulus end of hitch drop handle;
C) heating, whole heating, Jia Rewendu≤1250 ℃;
D) simmering and bending, are positioned over bar to be processed on base plate, and an annulus end is fixed on to location-plate, and by bolted, bar to be processed, successively around 4 rotations of pin 1～pin, are made to the linkage section of hitch drop handle; Utilize push rod to treat processing bar and carry out simmering and bending, in the middle of push rod, be provided with pin-and-hole, pin on pin-and-hole and location-plate is suitable, on push rod, weld baffle ring, arc surface diameter and bar on baffle ring are suitable, during simmering and bending, push rod pin borehole jack, in pin, be take pin as rotating shaft promotion push rod, and the baffle ring on push rod is pushed bar;
E) shaping, utilizes hand hammer to knock, and makes workpiece lower surface and base plate laminating;
F) shot-peening, sequentially hangs up the drop handle of machine-shaping in chain sling formula super shot blasting cleaning chamber, selects the shot that granularity is 1.5mm, makes surface of the work layer produce work strengthening when shooting down oxide skin;
G) paint, evenly sprays surface of the work by locomotive specialized paint.
A) the middle employing sawing mode blanking of described step.
At step b) in the local buckling moulding of bar two ends.
Beneficial effect of the present invention, under the prerequisite that cannot produce, has solved the actual production problem of locomotive coupler drop handle in existing automation equipment; By heating for multiple times, the manufacturing process of segmentation bending is produced, and has met the requirements of product; The location bending mould that wherein simmering and bending process is used, special-purpose push rod and the lever principle of utilizing greatly reduce operator's labour intensity.
Accompanying drawing explanation
Fig. 1 is hitch drop handle structure chart.
Fig. 2 is hitch drop handle semi-finished product.
Fig. 3 is hitch drop handle simmering and bending process schematic diagram.
Fig. 4 is frock side view used in Fig. 3.
Fig. 5 is pusher structure sketch.
In figure, be labeled as: 11-annulus end, 12-linkage section, 2-base plate, 21-pin, 22-location-plate, 4-push rod, 41-pin-and-hole.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Take HXN3 type locomotive as example, it is processed, the annular that annulus end 11 is R25, linkage section 12 is " door " font, and " door " word upper beam is arc.
Make mould, comprise base plate 2,22, four pins 21 of pin 21 and location-plate and location-plate 22 and integrally welded according to assigned address and base plate 2.The position of four pins 21 and location-plate 22 all with the form fit of the hitch drop handle of completion of processing.When the larger or slightly little hitch drop handle of processing dimension, pin quantity can also optionally increase or reduce.
During simmering and bending, bolt is passed from the R25 annulus of location-plate 22 and drop handle annulus end 11, the other end is located with fastening nuts, and operator utilizes push rod 4 around pin 1～pin 4, to push drop handle, make it moulding successively.On push rod, be welded with baffle ring, arc surface diameter and bar on baffle ring are suitable, avoid weighing wounded bar, being enclosed within outside pin 21 of push rod 4 pin-and-holes during simmering and bending, and the pin 21 of take promotes push rod 4 as rotating shaft, and the baffle ring on push rod 4 is pushed bar.Push rod 4 is provided with pin-and-hole 41, can be inserted in pin 21, take pin as axle rotation.
Manufacturing process is as follows:
A) blanking, due in buckled zone, area of section reduces, and length slightly increases, so will consider according to actual conditions and gross data; Because shearing blanking easily causes the uneven or cracking of material shearing end, for guaranteeing product quality, take the blanking of sawing mode;
B) bending, local heat, is used 20T hydraulic press to carry out brake forming to R25 annular regions, two ends, and hand finish, as shown in Figure 2; Calculate bending point, utilize drift, die to cooperatively interact the R25 place of annulus end 11 is crooked, and utilize hand hammer to knock its circularity of assurance;
C) heating, whole heating, Jia Rewendu≤1250 ℃;
D) simmering and bending.Utilize mould, bar to be processed is positioned on base plate 2, an annulus end 11 is fixed on to location-plate 22, and by bolted, bar to be processed, successively around 4 rotations of pin 1～pin, is made to the linkage section 12 of hitch drop handle, as shown in Figure 3;
E) shaping, utilizes hand hammer to knock, and makes workpiece lower surface and base plate laminating;
F) shot-peening, sequentially hangs up the drop handle of machine-shaping in chain sling formula super shot blasting cleaning chamber, selects the shot that granularity is 1.5mm, makes surface of the work layer produce work strengthening when shooting down oxide skin;
G) paint, evenly sprays surface of the work by locomotive specialized paint.
The present invention can accurately manufacture drop handle profile, and simple and convenient is safeguarded in the Mold Making of using.
Claims (3)
1. locomotive coupler drop handle manufacturing process, adopt the frock of following structure: comprise base plate, location-plate and 4 pins, location-plate is provided with screwed hole, the annulus end of hitch drop handle by bolted in location-plate, pin is fixed on base plate, the shape of the linkage section of the position of pin and hitch drop handle is suitable
Procedure of processing is as follows:
A) blanking, intercepting bar;
B) bending, is used 20T hydraulic press to carry out brake forming to bar two ends, makes the annulus end of hitch drop handle;
C) heating, whole heating, Jia Rewendu≤1250 ℃;
D) simmering and bending, are positioned over bar to be processed on base plate, and an annulus end is fixed on to location-plate, and by bolted, bar to be processed, successively around 4 rotations of pin 1～pin, are made to the linkage section of hitch drop handle; Utilize push rod to treat processing bar and carry out simmering and bending, in the middle of push rod, be provided with pin-and-hole, pin on pin-and-hole and location-plate is suitable, on push rod, weld baffle ring, arc surface diameter and bar on baffle ring are suitable, during simmering and bending, push rod pin borehole jack, in pin, be take pin as rotating shaft promotion push rod, and the baffle ring on push rod is pushed bar;
E) shaping, utilizes hand hammer to knock, and makes workpiece lower surface and base plate laminating;
F) shot-peening, sequentially hangs up the drop handle of machine-shaping in chain sling formula super shot blasting cleaning chamber, selects the shot that granularity is 1.5mm, makes surface of the work layer produce work strengthening when shooting down oxide skin;
G) paint, evenly sprays surface of the work by locomotive specialized paint.
2. locomotive coupler drop handle manufacturing process as claimed in claim 1, is characterized in that: a) middle employing sawing mode blanking of step.
3. locomotive coupler drop handle manufacturing process as claimed in claim 1, is characterized in that: at step b) in the local buckling moulding of bar two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210501472.6A CN102989847B (en) | 2012-11-30 | 2012-11-30 | Fixture for machining lifting ring of car coupler of locomotive and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210501472.6A CN102989847B (en) | 2012-11-30 | 2012-11-30 | Fixture for machining lifting ring of car coupler of locomotive and manufacturing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102989847A CN102989847A (en) | 2013-03-27 |
| CN102989847B true CN102989847B (en) | 2014-11-05 |
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| CN201210501472.6A Active CN102989847B (en) | 2012-11-30 | 2012-11-30 | Fixture for machining lifting ring of car coupler of locomotive and manufacturing process thereof |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096729A (en) * | 2014-06-09 | 2014-10-15 | 苏州创丰精密五金有限公司 | Polygonal bending jig group |
| CN104070092B (en) * | 2014-06-09 | 2017-03-15 | 苏州创丰精密五金有限公司 | L-shaped bending jig group |
| CN104070091B (en) * | 2014-06-09 | 2017-03-15 | 苏州创丰精密五金有限公司 | Arc fold bending tool group |
| CN104176084A (en) * | 2014-09-09 | 2014-12-03 | 南车戚墅堰机车有限公司 | Novel locomotive upper action car coupler opening device |
| CN104525647A (en) * | 2014-12-12 | 2015-04-22 | 中国核工业二三建设有限公司 | Tool for cold-forming pipeline |
| CN106077200B (en) * | 2016-08-26 | 2018-04-17 | 江阴市七星机械设备制造有限公司 | The hot-bending method of the U-shaped sunpender of boiler |
| CN109382636B (en) * | 2018-12-14 | 2023-11-07 | 宁波甬龙机械有限公司 | Multifunctional automatic hook welding all-in-one machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1488061A1 (en) * | 1986-05-19 | 1989-06-23 | Е.Л.Лебедев | Method of producing sleeves, rings and like articles |
| EP0348837A2 (en) * | 1988-06-30 | 1990-01-03 | T&N TECHNOLOGY LIMITED | Method for the manufacture of piston rings |
| CN2837497Y (en) * | 2005-07-01 | 2006-11-15 | 中国石油天然气集团公司 | Bail for petroleum and natural gas drilling |
| CN101688431A (en) * | 2007-06-27 | 2010-03-31 | 国民油井华高有限合伙公司 | Top drive and drop handle thereof |
| CN201455062U (en) * | 2009-07-30 | 2010-05-12 | 宝鸡石油机械有限责任公司 | Stew-bending device of lifting ring |
| CN201534190U (en) * | 2009-07-02 | 2010-07-28 | 哈尔滨飞机工业集团有限责任公司 | Bar bending tool |
-
2012
- 2012-11-30 CN CN201210501472.6A patent/CN102989847B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1488061A1 (en) * | 1986-05-19 | 1989-06-23 | Е.Л.Лебедев | Method of producing sleeves, rings and like articles |
| EP0348837A2 (en) * | 1988-06-30 | 1990-01-03 | T&N TECHNOLOGY LIMITED | Method for the manufacture of piston rings |
| CN2837497Y (en) * | 2005-07-01 | 2006-11-15 | 中国石油天然气集团公司 | Bail for petroleum and natural gas drilling |
| CN101688431A (en) * | 2007-06-27 | 2010-03-31 | 国民油井华高有限合伙公司 | Top drive and drop handle thereof |
| CN201534190U (en) * | 2009-07-02 | 2010-07-28 | 哈尔滨飞机工业集团有限责任公司 | Bar bending tool |
| CN201455062U (en) * | 2009-07-30 | 2010-05-12 | 宝鸡石油机械有限责任公司 | Stew-bending device of lifting ring |
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| CN102989847A (en) | 2013-03-27 |
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Address after: 116022 Shahekou, Liaoning, China No. 51 The Strip Patentee after: CRRC DALIAN Co.,Ltd. Address before: 116022 Shahekou, Liaoning, China No. 51 The Strip Patentee before: DALIAN LOCOMOTIVE AND ROLLING STOCK CO., LTD. CNR Group |
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Effective date of registration: 20160629 Address after: 519175, room 233, a factory building on the northeast side of Mount Everest Avenue and Zhujiang Avenue intersection, Toyama Industrial Zone, Guangdong, Zhuhai Patentee after: North Vehicle Equipment Engineering Co.,Ltd. Patentee after: CRRC DALIAN Co.,Ltd. Address before: 116022 Shahekou, Liaoning, China No. 51 The Strip Patentee before: CRRC DALIAN Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 519175, room 233, a factory building on the northeast side of Mount Everest Avenue and Zhujiang Avenue intersection, Toyama Industrial Zone, Guangdong, Zhuhai Co-patentee after: CRRC DALIAN Co.,Ltd. Patentee after: ZHUHAI CRRC EQUIPMENT ENGINEERING CO.,LTD. Address before: 519175, room 233, a factory building on the northeast side of Mount Everest Avenue and Zhujiang Avenue intersection, Toyama Industrial Zone, Guangdong, Zhuhai Co-patentee before: CRRC DALIAN Co.,Ltd. Patentee before: North Vehicle Equipment Engineering Co.,Ltd. |
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