CN204638758U - High-precision micro brass instead squeezes shaping dies - Google Patents
High-precision micro brass instead squeezes shaping dies Download PDFInfo
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- CN204638758U CN204638758U CN201520195256.2U CN201520195256U CN204638758U CN 204638758 U CN204638758 U CN 204638758U CN 201520195256 U CN201520195256 U CN 201520195256U CN 204638758 U CN204638758 U CN 204638758U
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- die
- backing plate
- shaping dies
- bolster
- precision micro
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Abstract
The utility model discloses a kind of high-precision micro brass and instead squeeze shaping dies, it comprises upper die and lower die; Patrix comprises upper bolster (1); be arranged on the backing plate (2) on upper bolster (1) and retainer (4); be arranged on the floating die shank (3) on backing plate (2); be arranged on the upper die plate (5) of upper bolster (1) bottom; be arranged on the punch retainer (6) of upper die plate (5) bottom; be arranged on the punch (7) on punch retainer (6), upper bolster (1) is provided with guide pin bushing (8); Counterdie comprises lower bolster (9), is arranged on the counterdie backing plate (10) on lower bolster (9), is arranged on the die (11) on counterdie backing plate (10), and die (11) bottom is provided with push rod (13), lower bolster (9) is provided with guide pillar (14).The utility model reasonable in design, precision is high, and reliability and stability are good, easy to operate, and the product quality prepared is high, and precision is high.
Description
Technical field
The utility model relates to a kind of machine-shaping device, is specifically related to the anti-of a kind of high-precision micro brass and squeezes shaping dies, belong to Machining Technology field.
Background technology
Because H62 brass extrusion size is extremely small, very high requirement is proposed to the accuracy of manufacture of microsecond delay mould parts, centering.In microsecond delay process, extrusion pressure during cold extrusion is very large, can reach 4 ~ 6 times of Tensile strength, close to the tensile strength even exceeding existing mold material, far exceeds unit pressure during common metal plastic working.During cold extrusion, the size of extrusion pressure mainly by the restriction of mould strength, now use the intensity of material to be up to 2500 ~ 3000MPa.Exceed this value, mould will damage, or the life-span is very low.And the extrusion molding dies of prior art, structural design is reasonable not, and tight ness rating is low, and especially wall thickness is only had to the brass workpiece of several millimeters, the product quality processed is poor, and qualification rate is low.
Therefore, on the basis of existing technology necessary, research and develop a kind of reasonable in design, precision is high, easy to operate, and the high-precision micro brass that working (machining) efficiency is high instead squeezes shaping dies.
Utility model content
Utility model object: the purpose of this utility model is to solve the deficiencies in the prior art, and provide a kind of reasonable in design, precision is high, easy to operate, the high-precision micro brass that working (machining) efficiency is high instead squeezes shaping dies.
Technical scheme: in order to realize the purpose of this utility model, the technical solution adopted in the utility model is:
A kind of high-precision micro brass instead squeezes shaping dies, and it comprises patrix and the counterdie supporting with patrix;
Described patrix comprises upper bolster, be arranged on the backing plate on upper bolster, be arranged on the floating die shank on backing plate, be arranged on the retainer on upper bolster, float die shank through retainer upper end, is arranged on the upper die plate bottom upper bolster, is arranged on the punch retainer bottom upper die plate, be arranged on the punch on punch retainer, described upper bolster is provided with guide pin bushing;
Described counterdie comprises lower bolster, be arranged on the counterdie backing plate on lower bolster, be arranged on the die on counterdie backing plate, be arranged on the die block for fixing die on counterdie backing plate, described female bottom is provided with push rod, push rod, through lower bolster and counterdie backing plate, described lower bolster is provided with guide pillar; Described guide pillar matches with guide pin bushing.
Preferably, above-described high-precision micro brass instead squeeze shaping dies, described upper bolster, backing plate, be connected by screw between upper die plate and punch retainer fixing.
Preferably, above-described high-precision micro brass instead squeezes shaping dies, described upper bolster, backing plate, is located by alignment pin between upper die plate and punch retainer.
Preferably, above-described high-precision micro brass instead squeezes shaping dies, and on described guide pillar, cover has ball bearing guide bushing and spring, and guide pillar is connected with guide pin bushing by ball bearing guide bushing.
Preferably, above-described high-precision micro brass instead squeezes shaping dies, and described lower bolster, is fixed by screw between counterdie backing plate and die block.
Preferably, above-described high-precision micro brass instead squeezes shaping dies, and described lower bolster, is located by alignment pin between counterdie backing plate and die block.
Preferably, above-described high-precision micro brass instead squeezes shaping dies, and described punch is made up of clamp segment, guide section and shaped segment.Described punch shaped segment, according to reality processing needs, its diameter can be 4 millimeters, 2 millimeters, 1 millimeter or 0.5 millimeter.
In microsecond delay process, the condition of work of Back Extrusion Punches is the most severe, therefore determines design according to factors such as extrusion shape, size, required precisions.The punch that the utility model provides is reliably fastening, and the clamping part of punch is stairstepping.Targeting part length is by when starting to extrude, and the length stretching into die is not less than 2mm, and causes early damage or the inefficacy of mould to prevent stress from concentrating, and the utility model punch transition portion adopts larger radius of corner or chamfering.
Preferably, above-described punch selection is W18Cr4V, adopts electric spark and grinding, Surface heat-treatent HRC58 ~ 62, and carries out polishing to shaped portion.
The high-precision micro brass that the utility model provides instead squeezes shaping dies, and wherein the push rod diameter of die and the diameter of die work strip are basic hole system matched in clearance H7/h6 or H7/g6.And the horizontal overstriking produced because of elastic deformation to prevent push rod and die bore area are collided, the mating surface that push rod is coordinating with die work strip is provided with yielding amount with lower part: bilaterally get 0.5 ~ 1mm; The height of knock-pin and die work strip mating part gets 5 ~ 10mm.Miniature brass backward extrusion push rod is the push rod doubling as extruding punch, and push rod material is W18Cr4V, Surface heat-treatent HRC58 ~ 62.
Beneficial effect: the high-precision micro brass that the utility model provides instead squeezes shaping dies and compared to the prior art has the following advantages:
1. the high-precision micro brass that the utility model provides instead squeezes shaping dies, reasonable in design, and precision is high, and up/down mould part guiding leaning guide pillar and ball bearing guide bushing are slided and joined guarantee, coordinate, good lubrication with extra fine grade.The concentricity of punch and die is slided by the accuracy of manufacture and alignment pin, punch targeting part and die and is joined to ensure.For avoiding the not high impact on mold integral precision of lathe guiding accuracy, the utility model adopts the die shank that floats, with sphere and backing plate from Row sum-equal matrix guiding accuracy.
2. the high-precision micro brass that the utility model provides instead squeezes shaping dies, reliability and stability are high, the cup shell producing minimum wall thickness (MINI W.) w=0.075mm can be extruded, the product quality prepared is high, the deficiency that prior art can not process 0.075mm cup shell can be overcome, achieve extraordinary innovation effect.
Accompanying drawing explanation
The structural representation of the anti-crowded shaping dies of high-precision micro brass that Fig. 1 provides for the utility model.
Fig. 2 is the structural representation that high-precision micro brass instead squeezes patrix in shaping dies.
Fig. 3 is the structural representation that high-precision micro brass instead squeezes counterdie in shaping dies.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
As shown in Figure 1 to Figure 3, a kind of high-precision micro brass instead squeezes shaping dies, and it comprises patrix and the counterdie supporting with patrix;
Described patrix comprises upper bolster (1), be arranged on the backing plate (2) on upper bolster (1), be arranged on the floating die shank (3) on backing plate (2), be arranged on the retainer (4) on upper bolster (1), float die shank (3) through retainer (4) upper end, be arranged on the upper die plate (5) of upper bolster (1) bottom, be arranged on the punch retainer (6) of upper die plate (5) bottom, be arranged on the punch (7) on punch retainer (6), described upper bolster (1) is provided with guide pin bushing (8);
Described counterdie comprises lower bolster (9), be arranged on the counterdie backing plate (10) on lower bolster (9), be arranged on the die (11) on counterdie backing plate (10), be arranged on the die block (12) for fixing die (11) on counterdie backing plate (10), described die (11) bottom is provided with push rod (13), push rod (13), through lower bolster (9) and counterdie backing plate (10), described lower bolster (9) is provided with guide pillar (14); Described guide pillar (14) matches with guide pin bushing (8).
Above-described high-precision micro brass instead squeeze shaping dies, described upper bolster (1), backing plate (2), between upper die plate (5) and punch retainer (6) pass through screw (15) be connected and fixed.And described upper bolster (1), backing plate (2), between upper die plate (5) and punch retainer (6) by alignment pin (16) location.
Above-described high-precision micro brass instead squeezes shaping dies, the upper cover of described guide pillar (14) has ball bearing guide bushing (17) and spring (18), and guide pillar (14) is connected with guide pin bushing (8) by ball bearing guide bushing (17).
Above-described high-precision micro brass instead squeezes shaping dies, and described lower bolster (9), is fixed by screw between counterdie backing plate (10) and die block (12).And described lower bolster (9), by alignment pin (16) location between counterdie backing plate (10) and die block (12).
Above-described high-precision micro brass instead squeezes shaping dies, and described punch (7) is made up of clamp segment, guide section and shaped segment.
Above-described high-precision micro brass instead squeezes shaping dies, and the diameter of described punch (7) shaped segment is 4 millimeters, 2 millimeters, 1 millimeter and 0.5 millimeter.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. high-precision micro brass instead squeezes a shaping dies, and it is characterized in that, it comprises patrix and the counterdie supporting with patrix;
Described patrix comprises upper bolster (1), be arranged on the backing plate (2) on upper bolster (1), be arranged on the floating die shank (3) on backing plate (2), be arranged on the retainer (4) on upper bolster (1), float die shank (3) through retainer (4) upper end, be arranged on the upper die plate (5) of upper bolster (1) bottom, be arranged on the punch retainer (6) of upper die plate (5) bottom, be arranged on the punch (7) on punch retainer (6), described upper bolster (1) is provided with guide pin bushing (8);
Described counterdie comprises lower bolster (9), be arranged on the counterdie backing plate (10) on lower bolster (9), be arranged on the die (11) on counterdie backing plate (10), be arranged on the die block (12) for fixing die (11) on counterdie backing plate (10), described die (11) bottom is provided with push rod (13), push rod (13), through lower bolster (9) and counterdie backing plate (10), described lower bolster (9) is provided with guide pillar (14); Described guide pillar (14) matches with guide pin bushing (8).
2. high-precision micro brass according to claim 1 instead squeezes shaping dies, it is characterized in that, described upper bolster (1), backing plate (2), to be connected and fixed by screw (15) between upper die plate (5) and punch retainer (6).
3. high-precision micro brass according to claim 2 instead squeezes shaping dies, it is characterized in that, described upper bolster (1), backing plate (2), between upper die plate (5) and punch retainer (6) by alignment pin (16) location.
4. the high-precision micro brass according to any one of claims 1 to 3 instead squeezes shaping dies, it is characterized in that, the upper cover of described guide pillar (14) has ball bearing guide bushing (17) and spring (18), and guide pillar (14) is connected with guide pin bushing (8) by ball bearing guide bushing (17).
5. high-precision micro brass according to claim 4 instead squeezes shaping dies, and it is characterized in that, described lower bolster (9), is fixed by screw between counterdie backing plate (10) and die block (12).
6. high-precision micro brass according to claim 5 instead squeezes shaping dies, it is characterized in that, described lower bolster (9), by alignment pin (16) location between counterdie backing plate (10) and die block (12).
7. high-precision micro brass according to claim 1 instead squeezes shaping dies, and it is characterized in that, described punch (7) is made up of clamp segment, guide section and shaped segment.
8. high-precision micro brass according to claim 1 instead squeezes shaping dies, and it is characterized in that, the diameter of described punch (7) shaped segment is 4 millimeters, 2 millimeters, 1 millimeter or 0.5 millimeter.
Priority Applications (1)
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CN201520195256.2U CN204638758U (en) | 2015-04-02 | 2015-04-02 | High-precision micro brass instead squeezes shaping dies |
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CN201520195256.2U CN204638758U (en) | 2015-04-02 | 2015-04-02 | High-precision micro brass instead squeezes shaping dies |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104690104A (en) * | 2015-04-02 | 2015-06-10 | 盐城工学院 | High-precision miniature brass back-extrusion forming die |
CN110479786A (en) * | 2019-07-09 | 2019-11-22 | 贵州安大航空锻造有限责任公司 | The backward extrusion method of alpha titanium alloy Shell Forging Parts |
CN110479787A (en) * | 2019-07-09 | 2019-11-22 | 贵州安大航空锻造有限责任公司 | The backward extrusion method of alpha+beta diphasic titanium alloy Shell Forging Parts |
-
2015
- 2015-04-02 CN CN201520195256.2U patent/CN204638758U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104690104A (en) * | 2015-04-02 | 2015-06-10 | 盐城工学院 | High-precision miniature brass back-extrusion forming die |
CN110479786A (en) * | 2019-07-09 | 2019-11-22 | 贵州安大航空锻造有限责任公司 | The backward extrusion method of alpha titanium alloy Shell Forging Parts |
CN110479787A (en) * | 2019-07-09 | 2019-11-22 | 贵州安大航空锻造有限责任公司 | The backward extrusion method of alpha+beta diphasic titanium alloy Shell Forging Parts |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160402 |