CN213701634U - Arc anvil for drawing and forming super-large deep blind hole shell - Google Patents
Arc anvil for drawing and forming super-large deep blind hole shell Download PDFInfo
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- CN213701634U CN213701634U CN202021582554.4U CN202021582554U CN213701634U CN 213701634 U CN213701634 U CN 213701634U CN 202021582554 U CN202021582554 U CN 202021582554U CN 213701634 U CN213701634 U CN 213701634U
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- circular arc
- blind hole
- hammering block
- arc
- anvil
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Abstract
The utility model discloses a dark blind hole casing of super large pulls out long circular arc hammering block for shaping has solved the problem that the dark blind hole casing of current super large is difficult to take shape the toper head through the process of pulling out long. The utility model discloses an upper and lower circular arc hammering block that circular arc hammering block symmetry set up, the bottom surface of going up the circular arc hammering block has last circular arc portion, the top surface of circular arc hammering block down have with the lower circular arc portion that last circular arc portion corresponds, upper and lower circular arc portion is the toper. The utility model discloses simple structure, easily transformation, easy and simple to handle, be applicable to the dark blind hole casing toper head of super large and draw out long shaping.
Description
Technical Field
The utility model relates to a forge the field, specific arc hammering block is used in shaping of drawing out length of super large dark blind hole casing that says so.
Background
With the deepening of national defense modernization in China, the establishment of strong air striking force becomes inevitable. According to the needs of the future battlefield, China also starts to develop a new generation of aviation bomb series. At present, the shell blind hole forge piece is produced in China mainly in two modes, one mode is free forging, namely, after a round bar blank is forged in a free forging mode, an inner hole is machined in a machining mode.
The other manufacturing method is die forging and reverse extrusion molding, namely, after a blank is forged in a free forging mode, a shell forging is formed in a special die by using a large-tonnage press, and the advanced production method is adopted by many foreign enterprises. In domestic enterprises, the housing forging is manufactured by adopting the method by the northern industrial group limited of inner Mongolia under the group of the Chinese weapon industry, and is limited to small housings. Because the requirement of the backward extrusion die forging on the tonnage of equipment is too high, the investment cost of a die is very huge, the working procedure is also complicated, and the die forging backward extrusion mode is difficult to be widely applied.
Therefore, through researching the forging technology of the large-scale shell forging, the advantages of enterprises are combined, under the existing equipment condition of a company, the forging allowance is further reduced, the material utilization rate is improved, the investment of a die is reduced, the deep blind hole and the conical head of the large-scale shell are forged, and the quality of the shell is improved, so that the development trend of manufacturing the large-scale shell forging is shown.
Because the ultra-large deep blind hole shell is provided with the conical head, the existing drawing tool is difficult to press into a conical shape with a smooth surface, and the method is also one of the reasons that the ultra-large deep blind hole shell is difficult to manufacture by adopting a low-cost method.
Disclosure of Invention
The utility model aims at solving the technical problem, provide a circular arc hammering block for shaping is drawn out to super large dark blind hole casing that simple structure, easily transformation, easy and simple to handle, be applicable to super large dark blind hole casing conical head draw out length take shape.
The technical scheme includes that the device comprises an upper arc anvil and a lower arc anvil which are symmetrically arranged, wherein the bottom surface of the upper arc anvil is provided with an upper arc part, the top surface of the lower arc anvil is provided with a lower arc part corresponding to the upper arc part, and the upper arc part and the lower arc part are conical; the taper of the blind hole is the same as that of the head of the super-large deep blind hole shell.
The edges at two sides of the upper arc part and the lower arc part are in arc transition,
the radius of the arc at the edge is 200-400 mm.
The utility model discloses to the problem in the background art, improve conventional upper and lower circular arc hammering block structure in the step of drawing out long, with upper and lower circular arc portion design for the toper that corresponds, the use of cooperation drawing out the long plug is taken shape to the drawing out of super large dark blind hole casing toper head, can obtain glossy toper head. The utility model discloses simple structure, easily reform transform, easy and simple to handle, pull out the surface quality of long shaping back product good, the specially adapted dark blind hole casing toper head of super large is pulled out long and is taken shape.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein, 1-upper arc anvil, 1.1-upper arc part, 2-lower arc anvil, 2.1-lower arc part, and 3-edge.
Detailed Description
The invention will be further explained with reference to the drawings:
referring to fig. 1, an upper arc anvil 1 and a lower arc anvil 2 are symmetrically arranged, the bottom surface of the upper arc anvil 1 is provided with an upper arc portion 1.1, the top surface of the lower arc anvil 2 is provided with a lower arc portion 2.1 corresponding to the upper arc portion 1.1, and as can be clearly seen from fig. 1, the upper arc portion 1.1 and the lower arc portion 2.1 are both conical, that is, the circle centers corresponding to the front and rear arc surfaces of the upper arc portion 1.1 and the lower arc portion 2.1 are the same, but the arc lengths are different, so that a conical section is formed, and the conical taper is the same as that of the head of the deep blind hole shell. And the two side edges 3 of the upper and lower arc parts 1.1, 2.1 are arc transition, and the radius of the arc is 200-400mm, so as to further improve the surface quality of the product during drawing.
When the drawing operation is carried out:
firstly, a drawing core rod penetrates into an inner hole through a blind hole end of a blind hole blank, and then the blind hole blank is placed between an upper arc anvil and a lower arc anvil (without a cone) for drawing until a cylindrical section of an oversized deep blind hole shell is extruded;
then with ordinary upper and lower circular arc hammering block trade become upper and lower circular arc hammering block 1, 2, utilize its conical inner circular arc portion 1.1, 2.1 to continue to draw out the toper section of long, finishing shaping blind hole blank head, until the toper section (toper head) of the glossy dark blind hole casing of extrusion, finally accomplish all to draw out the long process and obtain the dark blind hole casing of super large, super large dark blind hole casing overall dimension and surface quality all satisfy the technological requirement.
Claims (4)
1. The utility model provides a dark blind hole casing of super large is drawn out long circular arc hammering block for shaping, includes the upper and lower circular arc hammering block that the symmetry set up, the bottom surface of going up the circular arc hammering block has last circular arc portion, the top surface of circular arc hammering block down have with go up the lower circular arc portion that circular arc portion corresponds, its characterized in that, upper and lower circular arc portion is the toper.
2. The circular arc anvil for drawing and forming the ultra-large deep blind hole shell according to claim 1, wherein two side edges of the upper and lower circular arc portions are in circular arc transition.
3. The arc anvil for drawing and forming the ultra-large deep blind hole shell as claimed in claim 2, wherein the arc radius at the edge is 200-400 mm.
4. The circular arc anvil for drawing and forming the ultra-large deep blind hole shell according to claim 1, wherein the taper of the upper and lower circular arc portions is the same as the taper of the head portion of the ultra-large deep blind hole shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021582554.4U CN213701634U (en) | 2020-08-03 | 2020-08-03 | Arc anvil for drawing and forming super-large deep blind hole shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021582554.4U CN213701634U (en) | 2020-08-03 | 2020-08-03 | Arc anvil for drawing and forming super-large deep blind hole shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213701634U true CN213701634U (en) | 2021-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021582554.4U Active CN213701634U (en) | 2020-08-03 | 2020-08-03 | Arc anvil for drawing and forming super-large deep blind hole shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213701634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618007A (en) * | 2021-08-09 | 2021-11-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Arc-shaped anvil and drawing method |
-
2020
- 2020-08-03 CN CN202021582554.4U patent/CN213701634U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618007A (en) * | 2021-08-09 | 2021-11-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Arc-shaped anvil and drawing method |
| CN113618007B (en) * | 2021-08-09 | 2024-02-06 | 攀钢集团攀枝花钢铁研究院有限公司 | Arc anvil and drawing method |
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