CN101642790A - Column tube single face square opening punch forming processing method - Google Patents
Column tube single face square opening punch forming processing method Download PDFInfo
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- CN101642790A CN101642790A CN200910104666A CN200910104666A CN101642790A CN 101642790 A CN101642790 A CN 101642790A CN 200910104666 A CN200910104666 A CN 200910104666A CN 200910104666 A CN200910104666 A CN 200910104666A CN 101642790 A CN101642790 A CN 101642790A
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Abstract
A column tube single face square opening punch forming processing method includes that a special die is adopted to process a column tube single face square opening on a 40T common punch device, the special die is composed of special components of an inner R type cutting edge terrace die, a replaceable wedge type die, a wedge type discharging insert and the like. The processing method includes concrete steps that: (1) punch stroke is adjusted, and bottom dead center is at the position exactly cutting off the wall of the square opening; (2) the orifice blade width of the replaceable wedge type die is 3-4mm, and main body is finished into square cone with small orifice and large cavity; (3) inner R of the cutting edge terrace die is consistent with outer R of the processed column tube; (4) the oblique angles the insert of the replaceable wedge type die and the wedge type discharging insert are all 4 degrees; (5) part processing, namely inserting part into the die, wedging the die, wedgingthe discharging insert and die cutting, is carried out. The column tube single face square opening processed by the invention is uniform and consistent in hole pattern and R, prism is burr-free, roughness reaches Ra1.6, appearance is beautiful, processing efficiency is high, processing precision meets the requirement that tolerance is less than 0.1mm, and the service life of easily damaged die can reach 20000-30000 pieces. Pipe stress is uniform in terrace die cutting, and orifice deformation is small; and the die not only can strengthen tube pillar inner hole but also can be fast dismounted,and need of rapid production is satisfied.
Description
Technical field
The invention belongs to column casing pipe part processing method, particularly a kind of processing method of column casing pipe single side face square opening.
Background technology
Along with the develop rapidly of industry such as automobile and household electrical appliance, in the manufacturing processing of parts, more and more higher to the requirement of product quality and production efficiency, quantity is increasing, and some traditional processing technologys face the challenge, and can not satisfy the demands.The lockhole processing of automotive steering column casing pipe is exactly a kind of.The column casing pipe is the standardization tubing of market sale, and the lockhole of being processed is a rectangle, is with R all around, and accurate to dimension is higher, allows dimensional tolerance 0.1mm, and its traditional mechanical processing technique is: bore----copying milling---pincers etc., coarse, the undercut of machined surface; The precision uniformity is poor, tolerance is difficult to guarantee; Hole shape is twisted, the R inequality, and the rib burr removes difficulties, and production efficiency is low.Another kind of processing mode is the processing of slotting machine slotting tool, and distortion is big, is difficult to reach the requirement of data, and efficient is the end also.
Summary of the invention
The present invention provides a kind of novel processing method in order to overcome the drawback of traditional mechanical processing technique method in the one-sided hole processing of column casing pipe.
Column tube single face square opening punch forming processing method involved in the present invention is on the common punching apparatus of 40T, adopt special-purpose punch die processing column tube single face square opening, special-purpose punch die is made of interior R type cutting edge punch, interchangeable Wedge type die, Wedge type discharging special-purpose member such as insert, and its processing method is:
1) adjust punching stroke, lower dead center is just being cut off square opening hole wall place;
2) the interchangeable formula die aperture tread 3～4mm that tiltedly carves, main body is trimmed to the little following big cubic cone in aperture;
3) the interior R of cutting edge punch is consistent with the outer R of processing column casing pipe;
4) the interchangeable oblique angle that the formula discharging inserts of inserting, tiltedly carve of tiltedly carving the formula die is all got 4 °;
5) part processing step: part insert in the die → carve the tight discharging of tight die → carve insert → die-cut.
The column tube single face square opening of the present invention's processing, pass and R uniformity, rib do not have burr, roughness reaches Ra1.6, good looking appearance, working (machining) efficiency height, and machining accuracy satisfies tolerance 0.1mm with interior requirement.The present invention can process all minicars and sedan steering bitt bobbin square opening.The rapid wear mould life-span of the present invention can reach 20000～30000.Pipe fitting is stressed evenly during the punch stamping-out, and orifice deformation is little; Die can strong tubing string endoporus, and quick-detach soon satisfies need of rapid production again, when cutting edge wearing and tearing rust, can renew fast and continue to produce, and need not a whole set of mould dismounting.
Description of drawings
Fig. 1: the one-sided square opening illustration of column casing pipe
Fig. 2: particular manufacturing craft
Wherein: 1. the 2. interchangeable Wedge type die 3. band Wedge type dischargings of R shape cutting edge punch are inserted to fix and are protected block set in
Fig. 3: interior R shape cutting edge punch
Fig. 4: interchangeable Wedge type die
Fig. 5: interchangeable Wedge type die left view part
Fig. 6: the discharging of band Wedge type is inserted to fix and is protected block set
Fig. 7: the discharging of band Wedge type is inserted to fix and is protected the block set vertical view
The specific embodiment
The present invention is further described as follows below in conjunction with accompanying drawing:
The present invention adopts special-purpose punch die processing column tube single face square opening, special-purpose punch die is made of interior R type cutting edge punch, interchangeable Wedge type die, the discharging of the band wedge-type fixing special-purpose member such as block set of protecting of inserting, and interior R shape cutting edge punch, interchangeable Wedge type die are tiltedly, the band wedge-type discharging fixing critical piece such as block set of protecting of inserting has following characteristics:
Fig. 3 is interior R shape cutting edge punch, the material C r12MoV heat treatment 54～58HRC of punch.R control must be consistent with the outer R of column casing pipe in the punch, causes distortion otherwise the shearing force of stamping-out on tubing string is inconsistent, and the punch edge width is controlled at 0.50～0.70mm, the too sharp tipping of cutting edge, and wide aperture subsides; Because lockhole size resilience behind the stamping-out, the punch size is being set the long and wide 0.10 mm resilience surplus that respectively increases on the product size basis, and lockhole can satisfy the product drawing requirement fully behind the stamping-out.
Fig. 4 is interchangeable Wedge type die, die material C rWMo, heat treatment 52～56HRC.Die inserts the column casing pipe orifice, inserts length and changes apart from different with lockhole, and hole dimension has fluctuation range in the shaping column bobbin, and body diameter will change with bore.Die working portion external diameter is controlled at less than column casing bore 0.3-0.4mm, and strict control die square opening is to the position degree 66 ± 0.02mm of dowel hole.
Cutting edge of die partly is divided into two semicircle tapered wedges up and down, following tapered wedges weldering one handle (length is short corresponding definite with the column casing pipe range), the cutting angle of tapered wedges is the best with 4 °, both can be from the slip of pinning tapered wedges when stamping-out, and it is easy again to extract out after hours.
Fig. 5 inserts to fix for the discharging of band Wedge type and protects block set, punching press shear transfer during stamping-out is to die, powerful punching shear can't be born die and was fractureed and that lockhole is produced is oval moment, to support holding capacity and prevent the pipe fitting distortion in order to strengthen, design the band Wedge type discharging fixing block set of protecting of inserting played the effect that strengthens intensity and solidify tubing string; Moulding tubing string appearance and size also has fluctuation range, and the support zone of Pei Heing also should be considered this factor with it.
For making convenience simple to operation, the Wedge type discharging left side semi arch of inserting is made into tapered wedges, gradient is got 4 ° of the bests.
Use above-mentioned particular manufacturing craft processing column tube single face square opening, each mould can be accurately consistent when guaranteeing stamping-out, lower fixed seat in Fig. 2 punch die and the position degree dimensional tolerance between guide pillar must and Fig. 4 die material-dropping hole and locating hole between position degree dimensional tolerance be consistent; Between punch and the die certain interval should be arranged, gap size is got 20% of column casing pipe thickness and is the best.
In Fig. 2, interior R shape cutting edge punch is fixed on the cope match-plate pattern; Interchangeable Wedge type die is fixed in the lower fixed seat; The band Wedge type discharging fixing block set of protecting of inserting is assemblied in the die ontology; Adjust between the concave, convex mould and die and the discharging of the band Wedge type fixing peripheral clearance of protecting between the block set of inserting, assurance uniformity, fastening then each part.
Processing method: 1. fixedly particular manufacturing craft 2. is adjusted particular manufacturing craft lower dead center 3. processing parts 4. wedgings, the two place's wedges 5. die-cut 6. of packing in the die is taken down two place's wedges 7. and take off part 8. to repeat 3 to 7 be the processing of the 2nd part on punch press.
Claims (2)
1, a kind of column tube single face square opening punch forming processing method, this method are on the common punching apparatus of 40T, adopt special-purpose punch die processing column tube single face square opening, it is characterized in that procedure of processing is:
1) adjust punching stroke, lower dead center is just being cut off square opening hole wall place;
2) the interchangeable formula die aperture tread 3～4mm that tiltedly carves, main body is trimmed to the little following big cubic cone in aperture;
3) the interior R of cutting edge punch is consistent with the outer R of processing column casing pipe;
4) the interchangeable oblique angle that the formula discharging inserts of inserting, tiltedly carve of tiltedly carving the formula die is all got 4 °;
5) part processing step: part insert in the die → carve the tight discharging of tight die → carve insert → die-cut.
2, column tube single face square opening punch forming processing method according to claim 1 is characterized in that wherein special-purpose punch die is made of interior R type cutting edge punch, interchangeable Wedge type die, the discharging of the band wedge-type fixing special-purpose member such as block set of protecting of inserting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910104666A CN101642790A (en) | 2009-08-21 | 2009-08-21 | Column tube single face square opening punch forming processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910104666A CN101642790A (en) | 2009-08-21 | 2009-08-21 | Column tube single face square opening punch forming processing method |
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| CN101642790A true CN101642790A (en) | 2010-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910104666A Pending CN101642790A (en) | 2009-08-21 | 2009-08-21 | Column tube single face square opening punch forming processing method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125954A (en) * | 2010-12-31 | 2011-07-20 | 桐庐瀚威健身器材有限公司 | Punching method convenient to discharge |
| CN102319802A (en) * | 2011-08-16 | 2012-01-18 | 吴江市吴刚冲压机械有限公司 | Forming mold |
| CN103537530A (en) * | 2012-07-12 | 2014-01-29 | 摩丁制造公司 | System and method for producing apertures in tubes |
| US9486863B2 (en) | 2011-03-05 | 2016-11-08 | Modine Manufacturing Company | Method for producing slots in a tube wall and slotting tool |
-
2009
- 2009-08-21 CN CN200910104666A patent/CN101642790A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125954A (en) * | 2010-12-31 | 2011-07-20 | 桐庐瀚威健身器材有限公司 | Punching method convenient to discharge |
| US9486863B2 (en) | 2011-03-05 | 2016-11-08 | Modine Manufacturing Company | Method for producing slots in a tube wall and slotting tool |
| CN102319802A (en) * | 2011-08-16 | 2012-01-18 | 吴江市吴刚冲压机械有限公司 | Forming mold |
| CN103537530A (en) * | 2012-07-12 | 2014-01-29 | 摩丁制造公司 | System and method for producing apertures in tubes |
| US9308664B2 (en) | 2012-07-12 | 2016-04-12 | Modine Manufacturing Company | System and method for producing apertures in tubes |
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Open date: 20100210 |