CN209174600U - Cylinder mould tool is straightened in backward extrusion - Google Patents
Cylinder mould tool is straightened in backward extrusion Download PDFInfo
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- CN209174600U CN209174600U CN201821919576.8U CN201821919576U CN209174600U CN 209174600 U CN209174600 U CN 209174600U CN 201821919576 U CN201821919576 U CN 201821919576U CN 209174600 U CN209174600 U CN 209174600U
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- hole
- top pillar
- thimble
- upper punch
- diameter
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Abstract
The utility model discloses a kind of backward extrusion and cylinder mould tool is straightened, it include: upper mold, upper punch, lower die, top pillar and thimble, the upper punch is set to upper mold, the upper mold is equipped with the first hole, and the upper punch and the first hole are coaxial, and the internal diameter in the first hole is greater than the diameter of upper punch, the lower die is equipped with the second hole, the internal diameter in second hole is greater than the diameter of upper punch, and the lower die is provided with top pillar and thimble, and the top pillar is placed in the second hole bottom, the thimble is set to below top pillar, and blank is placed on the top pillar.The utility model makes middle part by using the mode of backward extrusion as cylindric product, improve the uniformity of product cylindrical structure each section of thickness and hardness, solve the problems, such as product deformation of bottom, guarantee production quality, simultaneously as can be improved die life using the thimble being relatively large in diameter, it avoids frequently replacing workpiece, improves production efficiency.
Description
Technical field
The utility model relates to forging product shaving dies more particularly to a kind of backward extrusion, and cylinder mould tool is straightened.
Background technique
The production technology of the mold of traditional fabrication cylinder is carried out in the way of drawing, it is difficult to be formed in longer
Portion is cylindric product structure.And during deep-drawing technique, the stress and strain in each area of blank is highly non-uniform, so that
Certain some materials is thinning serious, especially the position tangent with barrel, is easy to appear the bad phenomenon of drawing crack, is that deep-drawing technique is deposited
" critical section ".Meanwhile drawing part lower part wall thickness is slightly thinning after drawing, hardness is relatively low, and closer to oral area, it is thick
Degree is thicker, and hardness is also higher.
Therefore, the prior art is defective, needs to improve.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, a kind of hair extruding is provided, cylinder mould tool is straightened, by anti-
The mode of extruding can forge the product of longer middle part cylindrical structure, meanwhile, the thickness of product, hardness are distributed also more
Uniformly.
The technical solution of the utility model is as follows: providing a kind of backward extrusion and cylinder mould tool is straightened, comprising: upper mold, upper punch, under
Mould, top pillar and thimble, the upper punch are set to upper mold, and the upper mold is equipped with the first hole, and the upper punch and the first hole are coaxial,
The internal diameter in the first hole is greater than the diameter of upper punch, and the lower die is equipped with the second hole, and the internal diameter in second hole is greater than upper punch
Diameter, the lower die are provided with top pillar and thimble, and the top pillar is placed in the second hole bottom, and the thimble is set to below top pillar,
Blank is placed on the top pillar.
Further, the upper mold is additionally provided with support column, and the support column bottom end is equipped with external screw thread, the upper punch top
It is provided with internal screw thread, upper punch is connected through a screw thread with support column.
Further, the top pillar and the contact surface of blank bottom surface are cambered surface, and side is compared at the center of top pillar and blank contact surface
Along protrusion 0.1-0.2mm.
Further, the thimble diameter is φ 20mm.
Using the above scheme, the utility model is by during upper punch is squeezed to lower die, blank stress and from upper
The uniformly upward material extrusion of the gap of formed punch and lower die, guarantees that the thickness of product, hardness are evenly distributed.In top pillar and blank contact surface
The heart protrudes 0.1-0.2mm than edge, so that material is evenly distributed toward when edge material extrusion, and then solves product deformation of bottom
Problem.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Referring to Fig. 1, the utility model, which provides a kind of backward extrusion, is straightened cylinder mould tool, comprising: upper mold 100, upper punch 110,
Lower die 200, top pillar 210 and thimble 220, the upper punch 110 are set to upper mold 100, and the upper mold 100 is equipped with the first hole, institute
It states upper punch 110 and the first hole is coaxial, the internal diameter in the first hole is greater than the diameter of upper punch 100, therefore the first hole and upper punch 110
Between form gap.The lower die 200 is equipped with the second hole, and the internal diameter in second hole is greater than the diameter of upper punch 110, therefore the
Gap is formed between two holes and upper punch.The lower die 200 is provided with top pillar 210 and thimble 220, and the top pillar 210 is placed in
Two holes bottom, the thimble 220 are set to 210 lower section of top pillar, and blank is placed on the top pillar 210, and the upper punch 110 is made
For blank, blank ultimately forms product 300 along the gap material extrusion, improves the thickness of 300 lower part wall thickness of product and hard
Degree.Also, because the mode of extrusion forming used by the utility model is distributed the material of bottom of cylinder, middle part and oral area
More uniformly.The upper mold 100 is additionally provided with support column 120, and 120 bottom end of support column is equipped with external screw thread, the upper punch 110
Top is provided with internal screw thread, and upper punch 110 is connected through a screw thread with support column 120, and is configured with several formed punches, convenient to add
Formed punch is replaced when the different processes of chemical product, improves production efficiency.
The contact surface at 210 top of top pillar and blank bottom surface is cambered surface, and top center protrudes 0.1-0.2mm than edge,
When upper punch carries out punching press, blank material is easier toward edge material extrusion, and material is more uniformly spread, and then solves to produce
The problem of 300 deformation of bottom of product.
Thimble 220 is provided with below the top pillar 210,220 diameter of thimble is φ 20mm, is made compared with traditional handicraft
Diameter is the thimble of φ 6-10mm, and bending when the thimble 220 can effectively avoid 220 upward ejecting product of thimble improves
220 service life of thimble improves production efficiency, saves cost.
In conclusion the utility model makes middle part by using the mode of backward extrusion as cylindric product, improves and produce
The thickness uniformity of product, solves the problems, such as product deformation of bottom, guarantee production quality, simultaneously as using being relatively large in diameter
Thimble can be improved die life, avoid frequently replacing workpiece, improve production efficiency.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.
Claims (4)
1. a kind of backward extrusion be straightened cylinder mould tool characterized by comprising upper mold, upper punch, lower die, top pillar and thimble, it is described on
Formed punch is set to upper mold, and the upper mold is equipped with the first hole, and the upper punch and the first hole are coaxial, and the internal diameter in the first hole is greater than upper punching
The diameter of head, the lower die are equipped with the second hole, and the internal diameter in second hole is greater than the diameter of upper punch, and the lower die is provided with top
Column and thimble, the top pillar are placed in the second hole bottom, and the thimble is set to below top pillar, and blank is placed on the top pillar.
2. cylinder mould tool is straightened in a kind of backward extrusion according to claim 1, which is characterized in that the upper mold is additionally provided with support
Column, the support column bottom end are equipped with external screw thread, and the upper punch top is provided with internal screw thread, and upper punch and support column pass through screw thread
Connection.
3. cylinder mould tool is straightened in a kind of backward extrusion according to claim 1, which is characterized in that the top pillar and blank bottom surface
Contact surface is cambered surface, and 0.1-0.2mm is protruded than edge in the center of top pillar and blank contact surface.
4. cylinder mould tool is straightened in a kind of backward extrusion according to claim 1, which is characterized in that the thimble diameter is φ
20mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821919576.8U CN209174600U (en) | 2018-11-21 | 2018-11-21 | Cylinder mould tool is straightened in backward extrusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821919576.8U CN209174600U (en) | 2018-11-21 | 2018-11-21 | Cylinder mould tool is straightened in backward extrusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209174600U true CN209174600U (en) | 2019-07-30 |
Family
ID=67373447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821919576.8U Active CN209174600U (en) | 2018-11-21 | 2018-11-21 | Cylinder mould tool is straightened in backward extrusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209174600U (en) |
-
2018
- 2018-11-21 CN CN201821919576.8U patent/CN209174600U/en active Active
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