CN102773395B - Disk spring type upper anvil clamping, rotating and rapid exchanging system for pull-down type forging press - Google Patents
Disk spring type upper anvil clamping, rotating and rapid exchanging system for pull-down type forging press Download PDFInfo
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- CN102773395B CN102773395B CN201210224479.8A CN201210224479A CN102773395B CN 102773395 B CN102773395 B CN 102773395B CN 201210224479 A CN201210224479 A CN 201210224479A CN 102773395 B CN102773395 B CN 102773395B
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- 238000005242 forging Methods 0.000 title claims abstract description 75
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 25
- 230000008859 change Effects 0.000 description 20
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 241000168254 Siro Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The invention belongs to the technical field of forging devices and relates to a disk spring type upper anvil clamping, rotating and rapid exchanging system for a pull-down type forging press. The system is characterized by at least comprising a disk spring group type upper anvil clamping mechanism and an upper anvil rotating mechanism which are fixedly installed on a centre line of an upper beam of the forging press, and the system is fixedly connected with the upper beam of the forging press; the upper anvil clamping mechanism at least comprises an upper anvil press cylinder, a T-shaped pull rod, a disk spring group, a piston, a second screw nut, a sliding block, a supporting seat and a key gear, a T-shaped head end portion of the T-shaped pull rod is installed in a groove of an upper anvil connection seat and performs up and down reciprocating motion along a centre line of the upper anvil press cylinder, and the key gear is arranged on the T-shaped pull rod; and according to the upper anvil rotating mechanism, a rack type piston rod is arranged in an upper anvil rotating oil chamber of the system and meshed with the key gear. According to the disk spring type upper anvil clamping, rotating and rapid exchanging system for the pull-down type forging press, three functions of clamping, rotating and rapid exchanging of an upper anvil of the forging press are integrated.
Description
Technical field
The invention belongs to forging equipment technology field, be a kind of anvil clamping on the disk spring type of pull-down forging press, rotate and quick-change system.
Background technology
Existing pull-down forging press mostly is three beam two pole structures.The press frame be made up of upper beam, underbeam and column pumps along the guider of built-in beam, realizes forging function.Upper beam lower surface center is provided with anvil backing plate and upper anvil.Due to the needs of Forging Technology, especially carrying out jumping-up, pull out, when falling the Forging Technologies such as circle, bending, alignment, usually need the rotation and the different types of upper anvil of the frequent replacing of needs that realize anvil.Existing pull-down forging press, needs to arrange anvil clamping, quick-changing mechanism on four groups on four angles of upper beam, could realize single upper anvil clamping, quick change function, but cannot realize the function of anvil rotation.These apparatus structures are complicated, and the bulk taken is huge, and the parts related to are a lot, and manufacture, install and keep in repair inconvenient, equipment failure rate is high, has a strong impact on production efficiency; Simultaneously due to the setting of these devices, substantially increase the complexity of press design, the serious intensity weakening forging press upper beam, shortens the service life of press.Upper anvil clamps, rotate and the realization of quick change function has become one of important symbol of forging press modernization level.
Meanwhile, operationally, operating rate is fast, and the action frequency is high for pull-down forging press, and forging precision is high, and conversion time is short, and forging eccentric force has a great impact press part life, and in requirement, anvil and upper anvil backing plate fit tightly, and reduces collision.
Summary of the invention
The object of this invention is to provide a kind of anvil clamping on the disk spring type of pull-down forging press, rotate and quick-change system, it adopts, and integrative-structure design achieves anvil clamping on forging press, upper anvil rotates and the combination of upper these three kinds of functions of anvil quick change, and its structure is simply easy to use.
Technical scheme of the present invention is: anvil clamping, rotation and quick-change system on the disk spring type of pull-down forging press, it is characterized in that: it is at least made up of anvil clamp system in disc spring group formula and upper anvil rotating mechanism, and being fixedly mounted on the upper beam center line of forging press, native system is fixedly connected with forging press upper beam; Upper anvil clamp system at least comprises anvil pressure cylinder, T-shaped pull bar, disc spring group, piston, the second nut, slide block, supporting base and band key gear, the T connector end of T-shaped pull bar is arranged in the groove of anvil Connection Block, and pump along upper anvil pressure cylinder center line, T-shaped pull bar is also provided with band key gear; Upper anvil rotating mechanism rotates in oil pocket at the upper anvil of native system to be provided with rack-and-pinion piston rod, and rack-and-pinion piston rod and band key gears meshing, drive T-shaped pull bar to make 90 ° of crankmotions.
In described disc spring group formula anvil clamp system it comprise anvil pressure cylinder, T-shaped pull bar, piston, clutch shaft bearing, band key gear, the second bearing, slide block, disc spring group, supporting base and the second fairlead; Piston is arranged in the upper anvil pressure oil pocket of anvil pressure cylinder, and can move up and down, the end of T-shaped pull bar is fixedly connected with piston, T-shaped pull bar passes clutch shaft bearing, band key gear, the second bearing, slide block, disc spring group, supporting base and the second fairlead successively after connecting piston, and by the second nut, they are fastening; Supporting base is seated on forging press upper beam; First fairlead is fixedly connected with forging press upper beam by bolt, and the second fairlead is fixedly connected with forging press upper beam by the 3rd attachment screw.
One end of described disc spring group is seated on supporting base, and the other end is pressed on slide block; Second nut controls the decrement of disc spring group, by regulating the second nut, anvil and upper anvil backing plate on forging press is fitted tightly.
A boss is arranged at the bottom of described upper anvil pressure cylinder, and upper anvil pressure cylinder is fixedly connected with forging press upper beam with the first nut by stud.
Described rack-and-pinion piston rod rotates the center line movement of oil pocket along upper anvil.
Feature of the present invention is:
1, anvil clamp system in special disc spring group formula is set, ensure that combining closely of anvil and upper anvil backing plate in forging press moves up and down frequently, overcome inertia during anvil motion simultaneously, reduce the collision in motion.
2, be provided with anvil rotating mechanism, can when forging workpiece school, forging limit, limit, reduce the oxidation loss of forging when again heating, saved the energy.
3, there is upper anvil quick change function, when the contact of forging press upper and lower anvil, lead to the method for hydraulic oil by upwards anvil pressure oil pocket, make T-shaped pull bar depart from upper anvil Connection Block, and drive anvil to be changed by lower anvil mobile device, the quick-replaceable of anvil in realization.
Accompanying drawing explanation
Below in conjunction with embodiment, the present invention is further illustrated.
Fig. 1 is embodiment 1 anvil clamping, rotation and quick-change system and forging press syndeton schematic diagram on the disk spring type of pull-down forging press;
Fig. 2 is clamping, the rotating mechanism schematic diagram of embodiment 2 disc spring group form;
Fig. 3 is the A-A profile in Fig. 2;
Fig. 4 realizes upper anvil quick change function schematic diagram.
In figure: 101, anvil clamping, rotation and quick-change system on the disk spring type of pull-down forging press; 102, stud; 103, the first nut; 104, upper beam; 105, key; 106, upper anvil backing plate; 107, the first attachment screw; 108, four equally distributed keys; 109, upper anvil Connection Block; 110, the second attachment screw; 111, upper anvil; 112, lower anvil; 201, upper anvil pressure cylinder; 202, the second nut; 203, piston; 204, clutch shaft bearing; 205, key gear is with; 206, rack-and-pinion piston rod; 207, the second bearing; 208, the first fairlead; 209, connecting bolt; 210, slide block; 211, disc spring group; 212, T-shaped pull bar; 213, supporting base; 214, the second fairlead; 215, the 3rd attachment screw; 301, the key of gear; 401, the upper anvil Connection Block need changed; 402, the upper anvil need changed; 403, the lower anvil need changed; 404, lower anvil mobile device; I, upper anvil pressure oil pocket; On A, first, anvil rotates oil pocket; On B, second, anvil rotates oil pocket.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, on the disk spring type of pull-down forging press, anvil clamping, rotation and quick-change system 101 are arranged on the center of forging press upper beam 104 by stud 102, first nut 103.
Upper anvil backing plate 106 is linked together by key 105, first attachment screw 107 with upper beam 104.Upper anvil 111 is linked together by the second attachment screw 110 with upper anvil Connection Block 109.Four equally distributed keys 108 are set between upper anvil 111 and upper anvil backing plate 106.
Anvil clamping on the disk spring type of pull-down forging press, to rotate and the T connector end of T-shaped pull bar 212 in quick-change system 101 is installed in the groove of upper anvil Connection Block 109, make together with anvil 111 bottom surface fits tightly with upper anvil backing plate 106.
Embodiment 2
As shown in Figures 2 and 3, upper anvil pressure cylinder 201 is linked together by stud 102, first nut 103 and forging press upper beam 104.
Adopt the upper anvil clamp system of disc spring group form, T-shaped pull bar 212 by the second nut 202 with piston 203, clutch shaft bearing 204, second bearing 207, be with key gear 205, slide block 210, disc spring group 211 and supporting base 213 to link together, ensure that the uniformity of T-shaped pull bar 212 and the upper and lower motion of other parts.
Process a boss in the bottom of upper anvil pressure cylinder 201, piston 203 is moved downward to the effect playing limit journey.
The setting of clutch shaft bearing 204 and the second bearing 207, make T-shaped pull bar 212 and band key gear 205 in rotation process, piston 203, slide block 210, disc spring group 211 keep static, decrease the wearing and tearing between parts.
First fairlead 208 is arranged on upper beam 104 by connecting bolt 209, for the upper and lower motion of slide block 210 provides guiding.
Supporting base 213 is seated on upper beam 104.
Disc spring group 211 one end is seated on supporting base 213, and one end is pressed on slide block 210, and disc spring group 211 can be compressed along T-shaped pull bar 212 or extend.
Second fairlead 214 is arranged on upper beam 104 by the 3rd attachment screw 215, for the upper and lower motion of T-shaped pull bar 212 provides guiding.
With the key 301 arranging gear between key gear 205 and T-shaped pull bar 212, ensure that the uniformity that both rotate.The upper anvil of upper anvil pressure cylinder 201 rotate in oil pocket arrange one with the rack-and-pinion piston rod 206 being with key gear 205 to be meshed, can rotating band key gear 205 and T-shaped pull bar 212 rotate.
In practical operation be achieve the clamping of upper anvil by following mode, upper anvil rotates and upper these three functions of anvil quick change:
1, the realization of upper anvil clamping function:
Pull-down forging press is in work process, operating rate is fast, the action frequency is high, forging precision is high, conversion time is short, and forging eccentric force produces a very large impact press part life, this just needs anvil 111 and upper anvil backing plate 106 compact siro spinning technology, in minimizings anvil 111 and upper anvil backing plate 106 collision or crack.
The present invention arranges anvil clamp system specially, by regulating the second nut 202, the decrement of disc spring group 211 can be changed, make the disc spring group 211 upwardly part such as slide block 210, band key gear 205, piston 203, T-shaped pull bar 212 always, then the T connector end face of T-shaped pull bar 212 upwardly goes up anvil Connection Block 109 always, upper anvil 111 is linked together by screw 110 with upper anvil Connection Block 109, and anvil 111 is pressed on anvil backing plate 106 always.Thus ensure that in press upper beam 104 frequently upper and lower reciprocatory movement, together with upper anvil 111 fits tightly with upper anvil backing plate 106, effectively overcome the motion inertia force of anvil 111 itself, collision in minimizing between anvil 111 and upper anvil backing plate 106 or crack, improve the kinematic accuracy of anvil 111, ensure that the dimensional accuracy of forging; Also ensure that anvil 111 and the contact area of upper anvil backing plate 106 simultaneously, improve the stressing conditions of each parts of forging press, improve the service life of press.
2, the realization of upper anvil spinfunction:
Due to the needs of Forging Technology, the particularly alignment of bar or elongated forging, the present invention is provided with anvil rotating mechanism, in forging process, high temperature bar or elongated forging easily occur bending and deformation, and are provided with anvil whirligig, can in school, hot following forging limit, thus reduce forging heating times, reduce the oxidation consume of forging, economize energy.
When forging press upper beam 104 is positioned at operating position, together with upper anvil 111 fits tightly with upper anvil backing plate 106; The upper anvil pressure oil pocket I of upper anvil pressure cylinder 201 passes into high-voltage oil liquid, promotion piston 203 overcomes disc spring group 211 compression stress and moves downward, then T-shaped pull bar 212, second nut 202, gear 205, slide block 210 and clutch shaft bearing 204, second bearing 207 etc. move down together, because the T connector end face of T-shaped pull bar 212 and upper anvil Connection Block 109 link together, upper anvil 111 also moves down, above anvil 111 bottom surface now throw off with the key 108 being installed on upper anvil backing plate 106 surface; Then, the upper anvil of upper anvil pressure cylinder 201 rotates oil pocket A feed liquor, upper anvil rotates oil pocket B discharge opeing, thus drive rack-and-pinion piston rod 206 to rotate the center line movement of oil pocket along upper anvil, rack-and-pinion piston rod 206 driven wheels 205 are rotated counterclockwise, because T-shaped pull bar 212 is connected by key 301 with gear 205, and T-shaped pull bar 212 and upper anvil Connection Block 109 compact siro spinning technology, upper anvil 111 links together again with upper anvil Connection Block 109, then T-shaped pull bar 212 together rotates 90 ° with upper anvil 111; Go up upper anvil pressure oil pocket I discharge opeing of anvil pressure cylinder 201 afterwards, disc spring group 211 is extended, promote piston 203, T-shaped pull bar 212, gear 205 etc. to move up, T-shaped pull bar 212 drives anvil Connection Block 109 and upper anvil 111 to move up simultaneously, finally go up anvil 111 bottom surface again with upper anvil backing plate 106 close contact; Thus complete the function of anvil rotation.On in forging process, anvil 111 can half-twist, effectively can improve the productivity ratio of press, reduces the labour intensity of workman, economize energy.
3, the realization of upper anvil quick change function:
Due to the diversity of forging ' s block dimension and shape, may need jumping-up to be carried out to forging simultaneously, pull out, fall circle, bending, cut-out etc.; Modern factory management also requires that forging press itself can realize automation, and alleviate the labour intensity of workman, this just needs forging press to arrange anvil quick change function.
As shown in Figure 4, for the present invention realizes upper anvil quick change function schematic diagram, when the anvil face contact of anvil on forging press 111, lower anvil 112, the upper anvil pressure oil pocket I of upper anvil pressure cylinder 201 passes into high-voltage oil liquid, promotion piston 203 overcomes disc spring group 211 compression stress and moves downward, T-shaped pull bar 212, second nut 202, gear 205, slide block 210 and clutch shaft bearing 204, second bearing 207 etc. is driven to move down together, because upper anvil 111 is positioned on lower anvil 112, so, along with T-shaped pull bar 212 continues to move down, its T connector end face is separated with upper anvil Connection Block 109.Then, the upper anvil of upper anvil pressure cylinder 201 rotates oil pocket A feed liquor, and upper anvil rotates oil pocket B discharge opeing, thus drives rack-and-pinion piston rod 206 to rotate the center line movement of oil pocket along upper anvil.Rack-and-pinion piston rod 206 driven wheels 205 are rotated counterclockwise, and because T-shaped pull bar 212 is connected by key 301 with gear 205, T-shaped pull bar 212 can rotate 90 °.Upper anvil pressure oil pocket I discharge opeing of upper anvil pressure cylinder 201, disc spring group 211 is extended, and promotes piston 203, T-shaped pull bar 212, gear 205 etc. and moves up.Then, forging press upper beam 104 moves upward, until T-shaped pull bar 212 departs from anvil Connection Block 109 completely.Then, promote lower anvil (112 and 403) by lower anvil mobile device 404 to be moved to the left, make the upper anvil 402 of the needs replacing be positioned in advance on lower anvil 403 can move to the center of upper beam 104 center and T-shaped pull bar 212, and upper anvil 111 and lower anvil 112 shift out dynamic Liang104Zhi center.Press upper beam 104 moves downward, until upper anvil backing plate 106 is fitted with needing upper anvil 402 bottom surface changed.Subsequently, the upper anvil pressure oil pocket I of upper anvil pressure cylinder 201 passes into high-voltage oil liquid, promotes T-shaped pull bar 212 etc. and moves down, until T-shaped pull bar 212 stretches among anvil Connection Block 401 completely.Then, the upper anvil of upper anvil pressure cylinder 201 rotates oil pocket B feed liquor, and upper anvil rotates oil pocket A discharge opeing, and rack-and-pinion piston rod 206 driven wheel 205 and T-shaped pull bar 212 rotate clockwise 90 °.Upper anvil pressure oil pocket I discharge opeing of upper anvil pressure cylinder 201, disc spring group 211 is extended, promote piston 203, T-shaped pull bar 212, gear 205 etc. to move up, T-shaped pull bar 212 again with upper anvil Connection Block 401 close contact, and then need the upper anvil 402 changed also can fit tightly with upper anvil backing plate 106.Now, press upper beam 104 can drive the upper and lower reciprocating motion of anvil 402, carries out normal hammered work.Anvil quick change function in realization, greatly reduces the non-cutting time of free forging press hammered work, improves automaticity and labor productivity, reduces the labour intensity of workman.
Described lower anvil mobile device 404 is by Driven by Hydraulic Cylinder, and the left end face of hydraulic cylinder piston rod is provided with a hook-type part; Lower anvil 112 is also hook-shape structure with the both sides of the lower anvil 403 that need change.The mutual joining of hook-shape structure on the left of hook-shape structure on the right side of lower anvil 112 and the lower anvil 403 that need change, the mutual joining of hook-type part on the left of the hook-shape structure on the right side of the lower anvil 403 that need change and lower anvil mobile device 404.Instantly when the hydraulic cylinder piston rod of anvil mobile device 404 stretches out, hook-type part on the left of it promotes its right end face of the lower anvil 403 that need change, the hook-shape structure in the left side of the lower anvil 403 that need change promotes its right end face of lower anvil 112, thus under realizing, anvil 112 moves to the left with the lower anvil 403 that need change; Instantly when the hydraulic cylinder piston rod of anvil mobile device 404 is retracted, hook-type part on the left of it pulls the hook-shape structure on the right side of the lower anvil 403 that need change to the right, hook-shape structure on the left of the lower anvil 403 that need change pulls the hook-shape structure on the right side of lower anvil 112 to the right, and then under realizing, anvil 112 moves right with the lower anvil 403 that need change.Lower anvil mobile device 404 is one of forging press independently important component part, and it and upper anvil clamp, rotate and quick-change system cooperatively interacts, to realize lower anvil quick change function.
The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (4)
1. anvil clamping, rotation and quick-change system on the disk spring type of pull-down forging press, it is characterized in that: it is at least made up of anvil clamp system in disc spring group formula and upper anvil rotating mechanism, and being fixedly mounted on the upper beam center line of forging press, native system is fixedly connected with forging press upper beam (104); In described disc spring group formula anvil clamp system it comprise anvil pressure cylinder (201), T-shaped pull bar (212), piston (203), clutch shaft bearing (204), band key gear (205), the second bearing (207), slide block (210), disc spring group (211), supporting base (213) and the second fairlead (214); Piston (203) is arranged in upper anvil pressure oil pocket (I) of anvil pressure cylinder (201), and can move up and down, the end of T-shaped pull bar (212) is fixedly connected with piston (203), T-shaped pull bar (212) passes clutch shaft bearing (204), band key gear (205), the second bearing (207), slide block (210), disc spring group (211), supporting base (213) and the second fairlead (214) after connecting piston (203) successively, and by the second nut (202), they are fastening; Supporting base (213) is seated on forging press upper beam (104); First fairlead (208) is fixedly connected with forging press upper beam (104) by bolt, and the second fairlead (214) is fixedly connected with forging press upper beam (104) by the 3rd attachment screw (215); Upper anvil rotating mechanism rotates in oil pocket at the upper anvil of native system to be provided with rack-and-pinion piston rod (206), and rack-and-pinion piston rod (206) engages with band key gear (205), drives T-shaped pull bar (212) to make 90 ° of crankmotions; The T connector end of described T-shaped pull bar (212) is arranged in the groove of anvil Connection Block (109), and pumps along upper anvil pressure cylinder (201) center line.
2., according to the clamping of anvil on the disk spring type of pull-down forging press described in claim 1, rotation and quick-change system, it is characterized in that: one end of described disc spring group (211) is seated on supporting base (213), and the other end is pressed on slide block (210); Second nut (202) controls the decrement of disc spring group (211), by regulating the second nut (202), anvil on forging press (111) and upper anvil backing plate (106) is fitted tightly.
3. according to the clamping of anvil on the disk spring type of pull-down forging press described in claim 1, rotation and quick-change system, it is characterized in that: a boss is arranged at the bottom of described upper anvil pressure cylinder (201), and upper anvil pressure cylinder (201) is fixedly connected with forging press upper beam (104) with the first nut (103) by stud (102).
4., according to the clamping of anvil on the disk spring type of pull-down forging press described in claim 1, rotation and quick-change system, it is characterized in that: described rack-and-pinion piston rod (206) rotates the center line movement of oil pocket along upper anvil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210224479.8A CN102773395B (en) | 2012-07-02 | 2012-07-02 | Disk spring type upper anvil clamping, rotating and rapid exchanging system for pull-down type forging press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210224479.8A CN102773395B (en) | 2012-07-02 | 2012-07-02 | Disk spring type upper anvil clamping, rotating and rapid exchanging system for pull-down type forging press |
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| Publication Number | Publication Date |
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| CN102773395A CN102773395A (en) | 2012-11-14 |
| CN102773395B true CN102773395B (en) | 2015-01-28 |
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| CN201210224479.8A Active CN102773395B (en) | 2012-07-02 | 2012-07-02 | Disk spring type upper anvil clamping, rotating and rapid exchanging system for pull-down type forging press |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550604A (en) * | 2014-12-29 | 2015-04-29 | 中国第一重型机械股份公司 | Anvil clamping device for hydraulic forging press |
| CN113828723A (en) * | 2021-11-01 | 2021-12-24 | 湖南中创空天新材料股份有限公司 | Anvil drawing device |
| CN114161766B (en) * | 2021-12-08 | 2024-04-09 | 中国第一重型机械股份公司 | Heavy-load clamping device and hydraulic press |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4391122A (en) * | 1980-07-11 | 1983-07-05 | Sms Schloemann-Siemag Aktiengesellschaft | Combined hydraulic clamping and rotating saddle device on forging presses |
| DE4114295C2 (en) * | 1991-05-02 | 2002-10-31 | Roemheld A Gmbh & Co Kg | Rotary-train-tightening element |
| CN201329397Y (en) * | 2008-12-31 | 2009-10-21 | 二重集团（德阳）重型装备股份有限公司 | Quick anvil exchanging and clamping device on hydraulic press |
| CN101797620B (en) * | 2010-03-18 | 2011-10-05 | 太原重工股份有限公司 | Self-rotating clamping device used for rapidly changing upper anvil for forging press |
| CN202683908U (en) * | 2012-07-02 | 2013-01-23 | 中国重型机械研究院有限公司 | Disc spring type upper anvil clamping, rotating, and quick-changing device pull-down type forging press |
-
2012
- 2012-07-02 CN CN201210224479.8A patent/CN102773395B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4391122A (en) * | 1980-07-11 | 1983-07-05 | Sms Schloemann-Siemag Aktiengesellschaft | Combined hydraulic clamping and rotating saddle device on forging presses |
| DE4114295C2 (en) * | 1991-05-02 | 2002-10-31 | Roemheld A Gmbh & Co Kg | Rotary-train-tightening element |
| CN201329397Y (en) * | 2008-12-31 | 2009-10-21 | 二重集团（德阳）重型装备股份有限公司 | Quick anvil exchanging and clamping device on hydraulic press |
| CN101797620B (en) * | 2010-03-18 | 2011-10-05 | 太原重工股份有限公司 | Self-rotating clamping device used for rapidly changing upper anvil for forging press |
| CN202683908U (en) * | 2012-07-02 | 2013-01-23 | 中国重型机械研究院有限公司 | Disc spring type upper anvil clamping, rotating, and quick-changing device pull-down type forging press |
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| CN102773395A (en) | 2012-11-14 |
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Address after: 710032 Dongyuan Road 209, Weiyang District, Xi'an City, Shaanxi Province Patentee after: China National Heavy Machinery Research Institute Co., Ltd. Address before: 710032 Dongyuan Road 209, Weiyang District, Xi'an City, Shaanxi Province Patentee before: China National Heavy Machinery Research Institute Co., Ltd. |