CN104438949A - Train damping bracket machining technology - Google Patents
Train damping bracket machining technology Download PDFInfo
- Publication number
- CN104438949A CN104438949A CN201410800747.5A CN201410800747A CN104438949A CN 104438949 A CN104438949 A CN 104438949A CN 201410800747 A CN201410800747 A CN 201410800747A CN 104438949 A CN104438949 A CN 104438949A
- Authority
- CN
- China
- Prior art keywords
- die
- shock bracket
- punch
- train shock
- press
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/24—Deep-drawing involving two drawing operations having effects in opposite directions with respect to the blank
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- 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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a train damping bracket machining technology. The train damping bracket machining technology comprises the following machining steps of board blanking, first-time drawing, reverse drawing, second-time drawing, overall conical surface drawing and side face punching; in the step of reverse drawing, a damping bracket after first-time drawing is placed on a female die A in the manner that an opening of the damping bracket is downward, and the damping bracket is positioned through positioning pins in the female die A; an upper die plate of a pressing machine moves downwards, drives a male die A to press the damping bracket after first-time drawing downwards and rolls downwards along the inner wall of the female die A, and at the same time, the male die A pushes a material plate of the damping bracket so that the male die A and the material plate can descend together; when the whole damping bracket is pressed into the female die A, an upper limiting block of the pressing machine makes contact with a lower limiting block of the pressing machine, reverse drawing is ended, and the male die A returns. The method of forward and reverse drawing and the method of combining a straight surface and a conical surface are adopted, the production cycle is short, the internal shape and the external shape of the product is completely controlled by a mold cavity, and the dimensions are stable; accordingly, production efficiency and the percent of pass of the product are enhanced, the production cost is lowered, and the purposes of cost reduction, fund saving and effect enhancement of an enterprise itself are achieved.
Description
Technical field
The invention belongs to train accessory manufacture field, particularly a kind of train shock bracket processing technology.
Background technology
The product of train shock bracket (6197-CL-03/04) series, the thickness 3mm of material, tapering 11 ° ± 0.15 °, belongs to the dark Tapered Cup needing machine-shaping.Processing technology at present for train shock bracket is that rotation rolls and extrusion process, and extrusion process is: adopt die cavity extrusion process shaping, by interior external turning, and last flank hole processing; Rotation compaction technology is: adopt plate cutting, after through rotary pressing processing, then through turning last side punching.There is following defect: 1), adopt die cavity die casting, the course of work is loaded down with trivial details, poor working environment, very easily causes material inside organization defect, and train shock bracket surfaces externally and internally also needs the fine finishining of rear road; 2), adopt rotation compaction technology to need to use special equipment, processing cost is high; Spinning speed is comparatively slow, and the production cycle is long, road processing after surface has spinning vestige to need.
According to general cold punching technology, dark Tapered Cup deformation extent is large, and only by the local area transmitting force of blank and punch contact, very easily cause blank excessively thinning to break and side lower is very easily wrinkling by large footpath place, difficulty of processing is large.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above.
In order to realize above-mentioned object, this invention takes following technical solution: a kind of train shock bracket processing technology, is characterized in that: comprise following procedure of processing:
A), sheet material blanking, by sheet fabrication to design size;
B), first time stretches, and is band flanging straight tube shape by train shock bracket from plate stretch;
C), negative drawing;
D), second time stretches;
E), the overall conical surface stretches;
F), side punching.
Described negative drawing, comprises following procedure of processing:
A), at the cope match-plate pattern of YL28-150 press, upper die plate, punch retainer, punch A are installed successively downwards;
B), upwards successively counterdie backing plate, die cushion cover, die A are installed at the lower bolster of YL28-150 press;
C) Open Side Down is placed on die A, and by the alignment pin location in die A for the train shock bracket after, being stretched first time;
D), the cope match-plate pattern of press moves downward, train shock bracket after driving punch A to press down first time stretching, and roll downwards along the inwall of die A, the gap of 1.05 times of material thicknesses is left between die A and punch A, the flitch of the train of punch A promotion simultaneously shock bracket declines together, when train shock bracket is all pressed in die A, the upper limit position block of press contacts with lower position block, negative drawing terminates, punch A backhaul, train shock bracket is stayed in die A at the step place of die A by self resilience, last die pad ejects the train shock bracket after negative drawing.
Described second time stretches, and comprises following procedure of processing:
A), at the cope match-plate pattern of YL28-150 press, upper die plate, die supporter, die B are installed successively downwards;
B), upwards successively counterdie backing plate, punch retainer, punch B are installed at the lower bolster of YL28-150 press;
C), by the train shock bracket after negative drawing, Open Side Down is placed on punch B, and the train shock bracket after punch B top and negative drawing has the distance of hs=10 ± 1mm, by punch B profile coarse positioning;
D), press power of taking blame for others first is adjusted to 4 ~ 4.5Mpa, cope match-plate pattern moves downward, die B is driven to press down, by the conical surface self-centering of the train shock bracket after negative drawing and die B, guarantee by under power support of taking blame for others, die pad first allows the train shock bracket undergauge after negative drawing, and cut-off is controlled by hs, can guarantee that product surface is wrinkle resistant;
E), die B continues downwards, by static punch B, the train shock bracket after negative drawing is headed in the cavity of die B, the conical surface size H2 of press-in is 2/3rds of train shock bracket height, and the upper limit position block of press contacts with lower position block, and stretch end for the second time; Die B backhaul, pressured contracting polyurethane rubber and upper ejector beam are stayed on lower punch, complete discharging by bottom knockout plate is up.
The described overall conical surface stretches, and comprises following procedure of processing:
A), punch retainer, the punch C changed on lower bolster, punch C self-centering;
B) Open Side Down is placed on punch C, by punch C profile coarse positioning for the train shock bracket after, second time being stretched;
C), press power of taking blame for others first is adjusted to 4 ~ 4.5Mpa, cope match-plate pattern moves downward, and drives die B to press down, by the conical surface self-centering of the train shock bracket after negative drawing and die B, under guaranteeing to support by power of taking blame for others, die pad first allows the train shock bracket undergauge after negative drawing;
D), die B continues downwards, and be all pressed in die B by the train shock bracket after second time stretches by static punch C, the upper limit position block of press contact with lower position block, overall conical surface stretching end; Die B backhaul, pressured contracting polyurethane rubber and upper ejector beam are stayed on lower punch, complete discharging by bottom knockout plate is up.
After described negative drawing processing, the conical surface size H1 of train shock bracket is 25% ~ 35% of train shock bracket height.
The present invention adopts positive and negative drawing and faces the method combined with the conical surface directly, with short production cycle, inside and outside product, shape is controlled by mold cavity completely, dimensionally stable, improve production efficiency and product percent of pass, reduce production cost, reach the object that this section money wound effect falls in enterprise self, apply and there is good economic and social benefit.
Accompanying drawing explanation
Fig. 1 is shock absorbing bracket structure figure of the present invention.
Fig. 2 is mounting structure figure before train shock bracket negative drawing of the present invention.
Fig. 3 is train shock bracket negative drawing post-mounting structure figure of the present invention.
Fig. 4 is mounting structure figure before train shock bracket of the present invention second time stretches.
Fig. 5 is mounting structure figure before the overall conical surface of train shock bracket of the present invention stretches.
In figure: 1. train shock bracket; 2. die A; 3. punch A; 4. conical surface size H1; 5. die B; 6. punch B; 7. punch C; 8. conical surface size H2.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described, but not as limitation of the present invention:
A kind of train shock bracket processing technology, comprises following procedure of processing: A), sheet material blanking, by sheet fabrication to design size; B), first time stretches, and is band flanging straight tube shape by train shock bracket 1 from plate stretch; C), negative drawing; D), second time stretches; E), the overall conical surface stretches; F), side punching.
As shown in Figure 2, negative drawing, comprises following procedure of processing: A), at the cope match-plate pattern of YL28-150 press, upper die plate, punch retainer, punch A3 are installed successively downwards, B), upwards successively counterdie backing plate, die cushion cover, die A2 are installed at the lower bolster of YL28-150 press, C) Open Side Down is placed on die A2, and by the alignment pin location in die A2 for the train shock bracket 1 after, being stretched first time, D), the cope match-plate pattern of press moves downward, train shock bracket 1 after driving punch A3 to press down first time stretching, and roll downwards along the inwall of die A2, the gap of 1.05 times of material thicknesses is left between die A2 and punch A3, the flitch of the train of punch A3 promotion simultaneously shock bracket 1 declines together, when in train shock bracket 1 all press-in die A2, as shown in Figure 3, the upper limit position block of press contacts with lower position block, negative drawing terminates, punch A3 backhaul, train shock bracket 1 is stayed in die A2 at the step place of die A2 by self resilience, last die pad ejects the train shock bracket 1 after negative drawing, this negative drawing technique is different from general reverse-drawing: one is the conical surface that top adds certain altitude, its conical surface length controls extremely important, directly affects conical surface top diameter, short can increase operation, grow punch top diameter to diminish, cause train shock bracket 1 top to ftracture, raise one's hat, two is increase step in concave die cavity, monolateral 0.25mm is measured in yielding, decrease train shock bracket 1 and face the friction with die face directly, when train shock bracket 1 is descending enter die A2 after, finally can stay in die A2 by train shock bracket 1 resilience, decrease train shock bracket 1 and may be bonded at difficult problem punch A3 needing to increase device for discharging.
As shown in Figure 4, second time stretch, comprise following procedure of processing: A), at the cope match-plate pattern of YL28-150 press, upper die plate, die supporter, die B5 are installed successively downwards; B), upwards successively counterdie backing plate, punch retainer, punch B6 are installed at the lower bolster of YL28-150 press; C), by the train shock bracket 1 after negative drawing, Open Side Down is placed on punch B6, and the train shock bracket 1 after punch B6 top and negative drawing has the distance of hs=10 ± 1mm, by punch B6 profile coarse positioning; D), press power of taking blame for others first is adjusted to 4 ~ 4.5Mpa, cope match-plate pattern moves downward, die B5 is driven to press down, by the conical surface self-centering of the train shock bracket 1 after negative drawing and die B5, guarantee by under power support of taking blame for others, die pad first allows train shock bracket 1 undergauge after negative drawing, and cut-off is controlled by hs, can guarantee that product surface is wrinkle resistant; E), die B5 continues downwards, by static punch B6, the train shock bracket 1 after negative drawing is headed in the cavity of die B5, the conical surface size H27 of press-in is 2/3rds of train shock bracket 1 height, and the upper limit position block of press contacts with lower position block, and stretch end for the second time; Compacting terminates that rear train shock bracket 1 may be bonded in die B5 cannot discharging, die B5 backhaul, and compression polyurethane rubber and upper ejector beam are stayed on lower punch, complete discharging by bottom knockout plate is up; Roll after the first undergauge of train shock bracket 1, make the not easily drawing crack of train shock bracket 1 top, raise one's hat, decrease operation simultaneously.
As shown in Figure 5, the overall conical surface stretches, and comprises following procedure of processing: A), punch retainer, the punch C changed on lower bolster, punch C self-centering; B) Open Side Down is placed on punch C, by punch C profile coarse positioning for the train shock bracket after, second time being stretched; C), press power of taking blame for others first is adjusted to 4 ~ 4.5Mpa, cope match-plate pattern moves downward, and drives die B to press down, by the conical surface self-centering of the train shock bracket after negative drawing and die B, under guaranteeing to support by power of taking blame for others, die pad first allows the train shock bracket undergauge after negative drawing; D), die B continues downwards, and be all pressed in die B by the train shock bracket after second time stretches by static punch C, the upper limit position block of press contact with lower position block, overall conical surface stretching end; Die B backhaul, pressured contracting polyurethane rubber and upper ejector beam are stayed on lower punch, complete discharging by bottom knockout plate is up; Have employed undergauge and pressure cone principle combines, solve because die B5 and punch B7 precision of coincideing is good simultaneously, the little and locking phenomenon of formation of the tapering of train shock bracket 1.
After described negative drawing processing, the conical surface size H14 of train shock bracket 1 is 25% ~ 35% of train shock bracket 1 height; Second time be stretched to the overall conical surface stretch, employing be conical surface local excessive method, the product that the conical surface is smooth, tapering is stable can be obtained after shaping.
During concrete enforcement, through multianalysis, although train shock bracket 1 belongs to dark Tapered Cup, but carry out cold stamping by change mould structure and corresponding material, wherein the precision of train shock bracket 1 taper seat 11 ° ± 0.15 ° ensures that product height and corresponding large path can reach the key of drawing requirement; When material selection, contrast through analyzing with foreign material S355, and communicate with client, finally determine to adopt Baosteel to produce SPHC pickled plate, its chemical composition C≤0.12, Si≤0.50, Mn≤1.60, P≤0.25, S≤0.02, Ait >=0.015, V≤0.20, Ti≤0.15, Nb≤0.09.
Contrast through material analysis and repeatedly practise trial, SPHC Baosteel pickled plate is adopted to carry out cold punching technology, train shock bracket smooth-sided compression candles after processing, linearity is good, coning angle 11 ± 0.15o meets the requirements, yield strength >=220Mpa, tensile strength >=350Mpa, percentage elongation >=22%, meets the requirements of the customers completely; In use, damping effect is excellent for train shock bracket 1, and properties of product are stablized, and reaches the object that this section money wound effect falls in enterprise self.
Obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection scope of the present invention.
Claims (5)
1. a train shock bracket processing technology, is characterized in that: comprise following procedure of processing:
A), sheet material blanking, by sheet fabrication to design size;
B), first time stretches, and is band flanging straight tube shape by train shock bracket (1) from plate stretch;
C), negative drawing;
D), second time stretches;
E), the overall conical surface stretches;
F), side punching.
2. a kind of train shock bracket processing technology according to claim 1, is characterized in that: described negative drawing, comprises following procedure of processing:
, at the cope match-plate pattern of YL28-150 press, upper die plate, punch retainer, punch A(3 are installed successively downwards);
, upwards successively counterdie backing plate, die cushion cover, die A(2 are installed at the lower bolster of YL28-150 press);
, first time is stretched after train shock bracket (1) Open Side Down is placed on die A(2) on, and by die A(2) in alignment pin location;
, the cope match-plate pattern of press moves downward, drive punch A(3) press down the train shock bracket (1) after stretching for the first time, and along die A(2) inwall roll downwards, die A(2) and punch A(3) between leave the gap of 1.05 times of material thicknesses, simultaneously punch A(3) flitch that promotes train shock bracket (1) declines together, as train shock bracket (1) all press-in die A(2) in, the upper limit position block of press contacts with lower position block, negative drawing terminates, punch A(3) backhaul, train shock bracket (1) is at die A(2) step place stay die A(2 by self resilience) in, last die pad ejects the train shock bracket (1) after negative drawing.
3. a kind of train shock bracket processing technology according to claim 1, is characterized in that: described second time stretches, and comprises following procedure of processing:
A), at the cope match-plate pattern of YL28-150 press, upper die plate, die supporter, die B(5 are installed successively downwards);
B), upwards successively counterdie backing plate, punch retainer, punch B(6 are installed at the lower bolster of YL28-150 press);
C), by the train shock bracket (1) after negative drawing, Open Side Down is placed on punch B(6) on, punch B(6) train shock bracket (1) after top and negative drawing has the distance of hs=10 ± 1mm, by punch B(6) profile coarse positioning;
D), press power of taking blame for others first is adjusted to 4 ~ 4.5Mpa, cope match-plate pattern moves downward, drive die B(5) press down, by the train shock bracket (1) after negative drawing and die B(5) conical surface self-centering, guarantee by under power support of taking blame for others, die pad first allows train shock bracket (1) undergauge after negative drawing, and cut-off is controlled by hs, can guarantee that product surface is wrinkle resistant;
E), die B(5) continue downwards, punch B(6 by static) the train shock bracket (1) after negative drawing is headed into die B(5) cavity in, the conical surface size H2(7 of press-in) be 2/3rds of train shock bracket (1) height, the upper limit position block of press contacts with lower position block, and stretch end for the second time; Die B(5) backhaul, pressured contracting polyurethane rubber and upper ejector beam are stayed on lower punch, complete discharging by bottom knockout plate is up.
4. a kind of train shock bracket processing technology according to claim 1, is characterized in that: the described overall conical surface stretches, and comprises following procedure of processing:
A), punch retainer, the punch C(7 changed on lower bolster), punch C(7) self-centering;
B), second time is stretched after train shock bracket (1) Open Side Down is placed on punch C(7) on, by punch C(7) profile coarse positioning;
C), press power of taking blame for others first is adjusted to 4 ~ 4.5Mpa, cope match-plate pattern moves downward, drive die B(5) press down, by the train shock bracket (1) after negative drawing and die B(5) conical surface self-centering, under guaranteeing to support by power of taking blame for others, die pad first allows train shock bracket (1) undergauge after negative drawing;
D), die B(5) continue downwards, the punch C(7 by static) second time is stretched after train shock bracket (1) all press-in die B(5) in, the upper limit position block of press contact with lower position block, overall conical surface stretching end; Die B(5) backhaul, pressured contracting polyurethane rubber and upper ejector beam are stayed on lower punch, complete discharging by bottom knockout plate is up.
5. a kind of train shock bracket processing technology according to claim 2, is characterized in that: after described negative drawing processing, the conical surface size H1(4 of train shock bracket (1)) be 25% ~ 35% of train shock bracket (1) height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410800747.5A CN104438949B (en) | 2014-12-22 | 2014-12-22 | A kind of train shock bracket processing technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410800747.5A CN104438949B (en) | 2014-12-22 | 2014-12-22 | A kind of train shock bracket processing technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104438949A true CN104438949A (en) | 2015-03-25 |
| CN104438949B CN104438949B (en) | 2016-08-24 |
Family
ID=52886140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410800747.5A Active CN104438949B (en) | 2014-12-22 | 2014-12-22 | A kind of train shock bracket processing technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104438949B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105107922A (en) * | 2015-08-06 | 2015-12-02 | 李侨志 | Barrel stretch forming process and barrel manufactured by process |
| CN105537360A (en) * | 2015-12-25 | 2016-05-04 | 燕山大学 | Forward-backward drawing and forming method for metal plate soft mould |
| CN105642725A (en) * | 2016-01-15 | 2016-06-08 | 中国核动力研究设计院 | Punch forming technology of irradiation monitoring pipe half groove shell shaped like Chinese character 'ji' |
| CN107378401A (en) * | 2017-07-31 | 2017-11-24 | 绍兴东能五金有限公司 | The preparation method and producing device of base are made using waste and old gas cylinder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5656732A (en) * | 1979-10-11 | 1981-05-18 | Honda Motor Co Ltd | Reverse drawing die device |
| JPS63144828A (en) * | 1986-12-08 | 1988-06-17 | Nissan Motor Co Ltd | Press forming method |
| CN1130107A (en) * | 1995-03-02 | 1996-09-04 | 林介峰 | Method for producing double-layered stainless steel cup |
| CN201618802U (en) * | 2010-02-13 | 2010-11-03 | 张付明 | Improved reverse drawing die |
| CN201760499U (en) * | 2010-06-30 | 2011-03-16 | 重庆理工大学 | Backward deep drawing die with outer edge subject to back pressure of forward pressure belt |
| CN104084486A (en) * | 2014-07-21 | 2014-10-08 | 福建威而特汽车动力部件有限公司 | Technology for machining high-precision metal plate belt wheel |
-
2014
- 2014-12-22 CN CN201410800747.5A patent/CN104438949B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5656732A (en) * | 1979-10-11 | 1981-05-18 | Honda Motor Co Ltd | Reverse drawing die device |
| JPS63144828A (en) * | 1986-12-08 | 1988-06-17 | Nissan Motor Co Ltd | Press forming method |
| CN1130107A (en) * | 1995-03-02 | 1996-09-04 | 林介峰 | Method for producing double-layered stainless steel cup |
| CN201618802U (en) * | 2010-02-13 | 2010-11-03 | 张付明 | Improved reverse drawing die |
| CN201760499U (en) * | 2010-06-30 | 2011-03-16 | 重庆理工大学 | Backward deep drawing die with outer edge subject to back pressure of forward pressure belt |
| CN104084486A (en) * | 2014-07-21 | 2014-10-08 | 福建威而特汽车动力部件有限公司 | Technology for machining high-precision metal plate belt wheel |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105107922A (en) * | 2015-08-06 | 2015-12-02 | 李侨志 | Barrel stretch forming process and barrel manufactured by process |
| CN105107922B (en) * | 2015-08-06 | 2017-06-23 | 李侨志 | Staving stretch forming process and the staving being made of the technique |
| CN105537360A (en) * | 2015-12-25 | 2016-05-04 | 燕山大学 | Forward-backward drawing and forming method for metal plate soft mould |
| CN105537360B (en) * | 2015-12-25 | 2017-08-11 | 燕山大学 | A kind of positive and negative drawing forming method of sheet metal soft mode |
| CN105642725A (en) * | 2016-01-15 | 2016-06-08 | 中国核动力研究设计院 | Punch forming technology of irradiation monitoring pipe half groove shell shaped like Chinese character 'ji' |
| CN107378401A (en) * | 2017-07-31 | 2017-11-24 | 绍兴东能五金有限公司 | The preparation method and producing device of base are made using waste and old gas cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104438949B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109304388B (en) | Device and method for in-mold bending of hydraulic forming four-bend part | |
| CN206643204U (en) | A kind of motor mounting plate punching die | |
| CN104438949A (en) | Train damping bracket machining technology | |
| CN201329389Y (en) | Sensor gear ring drawing die | |
| CN103600005B (en) | A kind of processing molding method of rocker stand | |
| CN201693079U (en) | Thinned deep-drawing die with positive pressure | |
| CN101890453A (en) | Method and die for molding skins front edges of rotary wings of aircraft by stretching and compressing | |
| CN110788193B (en) | Controllable medium cold stamping forming process method and die structure thereof | |
| CN202779355U (en) | Combination tool for forming of long box-like workpieces | |
| CN205519257U (en) | Vapour car tray forming die | |
| CN207308716U (en) | A kind of flange hole flanging shaping mold | |
| CN202506702U (en) | Manufacture system of automobile lock hook parts | |
| CN204657375U (en) | Cold extrusion combined die | |
| CN205629077U (en) | Accurate die of microwave oven door inner panel aperture | |
| CN107552647A (en) | A kind of part swaging device | |
| CN201519735U (en) | roll forging die enabling support arm to achieve bending on roll forging machine | |
| CN201338051Y (en) | Inner hole bulging and reshaping mould for narrow trough rotary body | |
| CN204470401U (en) | A kind of continuous seepage mould of automobile gusset part | |
| CN100439004C (en) | Cold precise forming technology and equipment of spur gear | |
| CN103056229B (en) | A kind of for die for stamping large-diameter small-height bushes | |
| CN106825235B (en) | Automobile front subframe lower plate diel | |
| CN103909155A (en) | Ejection-type blanking and punching composite die | |
| JP5237027B2 (en) | Method for manufacturing cylindrical member | |
| CN104338858A (en) | Hardware part stamping die | |
| CN105149423A (en) | Orifice punching die of holder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230808 Address after: 214500 East of Gushan Xiexiexiexin Road Crossing, Jingjiang City, Taizhou City, Jiangsu Province, 20 meters Patentee after: Jingjiang Tongxing Metallurgical Technology Co.,Ltd. Address before: 214500 North Second Ring Road, Chengbei Park, Jingjiang City, Taizhou City, Jiangsu Province Patentee before: JINGJIANG CITY TONGAN AUTO PARTS MANUFACTURING Co.,Ltd. |
|
| TR01 | Transfer of patent right |