CN101985149A - Hydraulic machine for pressing large screws - Google Patents
Hydraulic machine for pressing large screws Download PDFInfo
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- CN101985149A CN101985149A CN 201010243054 CN201010243054A CN101985149A CN 101985149 A CN101985149 A CN 101985149A CN 201010243054 CN201010243054 CN 201010243054 CN 201010243054 A CN201010243054 A CN 201010243054A CN 101985149 A CN101985149 A CN 101985149A
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Abstract
The invention discloses a hydraulic machine for pressing large screws. The hydraulic machine comprises a lower crossbeam and a slide block, wherein a female die is arranged on the lower crossbeam; a male die is arranged on the slide block; an accommodating hole for the large screws is formed in the center of the lower crossbeam corresponding to the hydraulic machine; the female die is formed by combining and clamping a left half female die and a right half female die with symmetrical structures; the female die is provided with a clamping mechanism; a die cavity of the female die has a stepped hole shape and comprises an upper-section hole and a lower-section hole; the cross section of the upper-section hole is matched with the cross section of the large screw head; the cross section of the lower-section hole is matched with the cross section of the large screw rod and is communicated with the accommodating hole; and the male die is matched with the upper-section hole. The hot-pressing multi-ram die forging of high-strength screws on the hydraulic machine is realized, the forged screws have compact structures and high strength and precision, the material consumption is low, and the production efficiency is high.
Description
Technical field
The present invention relates to a kind of hydraulic press, particularly a kind of hydraulic press that is used to suppress large-scale screw.
Background technology
Along with world energy sources is advocated low-carbon (LC), various novel energy forms also constantly develop and reform, wherein the development of wind-power electricity generation dazzling nova in the green energy resource especially.In wind power plant, the type of attachment of wind turbine and generator is the bottleneck of puzzlement wind-power electricity generation development always, and along with the use of high-strength screw, wind-power electricity generation is progressively gone on new level.
In today of wind-power electricity generation fast development, the large-scale production that improves each parts is very important, and this will guarantee the raising of whole wind-driven generator production efficiency, the reduction of production cost.At present, the large-scale screw that is used for wind-driven generator normally behind the open die forging again by machined remove surface scale, machining screw forms.There is following problem in said method: 1) metal structure of part changes needs the time longer; 2) need to reserve bigger allowance, material consumption is more; 3) part precision is poor; 4) production efficiency is lower.Free forging process is for the screw that uses in the general operating mode, and is still applicable, but for high-strength screw, just can't satisfy batch production requirement.In order to address the above problem, produced the large-scale screw technology of hot pressing multi-ram forging, in order to realize the large-scale screw technology of hot pressing multi-ram forging, need the hydraulic press of implementing above-mentioned technology.
Summary of the invention
The present invention provides a kind of hydraulic press that is used to suppress large-scale screw that can implement the hot pressing multi-ram forging for solving the technical problem that exists in the known technology.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of hydraulic press that is used to suppress large-scale screw, comprise sill and slide block, on the described sill die is installed, on the described slide block punch is installed, the center of corresponding hydraulic press is provided with the accommodation hole of described large-scale screw screw rod on described sill; Described die is to be combined and clamped to form by a left side half die of symmetrical configuration and right half die, described die is provided with clamp mechanism, the impression of described die is that ladder is poroid, the impression of described die comprises sector hole and following sector hole, the cross section of described upward sector hole and the cross section of described large-scale head of screw are adaptive, the cross section of described down sector hole is adaptive with the cross section of described large-scale shank of screw and communicate with described accommodation hole, described punch and described on sector hole adaptive.
The present invention can also adopt following technical scheme: described clamp mechanism comprises clamping and the die retaining mechanism that is connected to a described left side half die and the right half die outside.
Described clamping comprises closing cylinder, and the cylinder bar of described closing cylinder is provided with the joint affixed with the outside of described die, and the center line of described closing cylinder is vertical with the center of die cavity line of described die.
Described die retaining mechanism comprises the clamp arm that is clamped in a described left side half die and the right half die outside respectively, be provided with drift between described clamp arm and adjacent half die, two clamp arm symmetries are fixed in the two ends of pull bar, the middle part of described pull bar is connected with the locked mode cylinder, and described locked mode cylinder center line is vertical with the center of die cavity line of described die.
The outside of a described left side half die and right half die is respectively equipped with the drift detent.
The accommodation hole of described large-scale screw screw rod is the through hole on the described sill; This hydraulic press also comprises the bracing or strutting arrangement of described large-scale screw, the bracing or strutting arrangement of described large-scale screw comprise the described large-scale screw of apical support leading screw and driving mechanism thereof, be installed in the Fixed Nut on the leading screw and support the fixed support of described driving mechanism, described driving mechanism is connected the lower end of described leading screw.
Described driving mechanism comprises transmission mechanism and drive motors thereof; Described transmission mechanism comprise the worm screw that is connected with drive motors and with the worm gear of described worm engaging, the lower end of described worm gear is connected with guide pin bushing, the described guide pin bushing upper edge direction parallel with described leading screw offers the twice guide groove, be provided with in the per pass guide groove one with the affixed guide pad in lower end of described leading screw.
The bottom of described left and right two halves die is respectively equipped with two detents of opening to the inside.
Described joint is a U-joint, the U-shaped mouth of described U-joint forward, described clamp arm correspondence is installed in the U-shaped mouth of described U-joint.
Described punch and die are made of a steel by hot die steel or hammer forging die.
Advantage and good effect that the present invention has are: die adopts two halves combination clamping structure, realized the hot pressing multi-ram forging of high-strength screw on hydraulic press, the screw dense structure that forges, the intensity height, material consumption is few, screw precision height, and production efficiency height, help the development of wind-power electricity generation cause, have good economic benefits and social benefit.
Description of drawings
Fig. 1 is a structural representation of the present invention; Fig. 2 is the vertical view (punch is not shown) of Fig. 1; Fig. 3 is the upward view of die of the present invention; Fig. 4 is the structural representation of clamp mechanism of the present invention.
Among the figure: 1, punch, 2, right half die, 2-1, the drift detent, 2-2,2-3, detent, 3, the hydraulic press sill, 4, leading screw, 5, a left side half die, 5-1, the drift detent, 5-2,5-3, detent, 6, large-scale screw, 7, feed inlet and outlet, 8, locating piece, 9, checkout gear, 10, pull bar, 11, clamp arm, 12, closing cylinder, 13, U-joint, 14, drift, 15, the locked mode cylinder, 16, Fixed Nut, 17, worm gear, 18, protective cover, 19, guide pin bushing, 19-1,19-2, guide groove, 20, guide pad, 21, worm screw, 22, drive motors, 23, fixed mount.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, now exemplify following examples, and conjunction with figs. is described in detail as follows: see also Fig. 1～Fig. 3, a kind of hydraulic press that is used to suppress large-scale screw of the present invention, comprise sill 3 and slide block, on the described sill 3 die is installed, punch 1 is installed on the described slide block, the center of corresponding hydraulic press is provided with the accommodation hole of described large-scale screw screw rod on described sill; Die is to be combined and clamped to form by a left side half die 5 of symmetrical configuration and right half die 2, described die is provided with clamp mechanism, the impression of die is that ladder is poroid, comprise sector hole and following sector hole, the cross section of last sector hole and the cross section of large-scale head of screw are adaptive, the cross section of following sector hole and the cross section of large-scale shank of screw are adaptive, and punch 1 is adaptive with last sector hole.
In order further to stablize the structure of two halves combined die, the outside of left and right two halves die 5,2 is respectively equipped with drift detent 5-1, a 2-1, be used for the insert drift in the drift detent,, stablize the structure of die so that further clamp left and right two halves die.
In addition, for two halves combined die structure, closing precision also is one of important index weighing the mould quality.In order to guarantee the closing precision of left and right two halves die, be respectively equipped with two detent 5-2,5-3,2-2, the 2-3 of opening to the inside in the bottom of left and right two halves die, on the backing plate of left and right two halves die at sill when move the hydraulic press central area, after detent on it touches locating piece on the backing plate, locating piece is embedded in the detent of die bottom, and the contact-making surface of left and right two halves die 5,2 fits tightly.The locating piece that is embedded in die bottom make die have excellent contact with to neutrality.
Above-mentioned mould should adopt hot die steel to make, and preferably makes with steel 5CrNiMo or 5CrMnMo with hammer forging die.Use under high-temperature condition and can guarantee that still it has the favorable mechanical performance, indeformable, the workpiece that can not make same batch because of repeatedly using is after compacting, and it is inconsistent to produce bigger error.
See also Fig. 4; Fig. 4 is the structural representation of above-mentioned clamp mechanism; the outside of left and right sides two halves die 5,2 is connected with a clamping respectively; two clamping structures are identical; each clamping comprises a closing cylinder 12; the cylinder bar of closing cylinder 12 is provided with U-joint 13, and the openend of U-joint 13 and the half die outside are affixed.For preventing in the forging process, left and right sides two halves die separates, clamp mechanism is established in rear end at die, clamp mechanism comprises locked mode cylinder 15, the center line of locked mode cylinder 15 is vertical with the center of die cavity line of die, be connected with perpendicular pull bar 10 on the cylinder bar of locked mode cylinder 15, the both sides of pull bar 10 are connected with clamp arm 11 respectively, the inboard of each clamp arm 11 is connected with drift 14, locked mode cylinder 15 stretches out, and the drift 14 on the clamp arm 11 cooperates die fastening with the drift that is packed in two halves die 5,2 outsides, the left and right sides.In order to make structure more rationally compact, the U-shaped mouth that should make U-joint 13 forward, clamp arm 11 is installed in the U-shaped mouth of U-joint 13.
The operation principle of above-mentioned clamp mechanism: assumed initial state is a locking state shown in Figure 4, the process of die sinking is: locked mode cylinder 15 spurred pull bars 10 before this, drive clamp arm 11 and drift 14 rollbacks that are connected on the clamp arm 11, locked mode cylinder 15 rollbacks are to the cylinder bottom position, and clamp arm 11 leaves the die outside.This moment, checkout gear 9 detected the signal that locked mode cylinder 15 rollbacks put in place, closing cylinder 12 beginning rollbacks, after treating that closing cylinder 12 is return fully, checkout gear 9 detects the signal that closing cylinder 12 rollbacks put in place, the closing cylinder 12 of both sides drives left half die 5 respectively to be separated with right half die 2, die is opened, and takes out forging.After having only locked mode cylinder 15 to return to put in place, just allow the closing cylinder 12 of the right and left to inject hydraulic oil and return.
The locking process of die: large-scale screw 6 is before compacting, heat its bar-shaped stock upper end, bar-shaped stock after the heating is put into the large-scale screw screw rod accommodation hole that sill 3 is provided with from the feed inlet and outlet 7 on the hydraulic press sill 3, bar-shaped stock is vertical with sill 3, and the bottom of bar-shaped stock is supported by leading screw 4.The closing cylinder 12 in two halves die 5,2 outsides, the left and right sides stretches out, left and right sides two halves die 5,2 matched moulds under the cooperation of locating piece 8, and die clamps the bar-shaped stock of screw.After clamping pressure reached setting value, locked mode cylinder 15 stretched out, and drove clamp arm 11 and by its inboard drift 14 die was clamped.The oiling of always pressurizeing of the oil circuit that is connected with locked mode cylinder 15 guaranteed that locked mode cylinder 15 has enough oil pressure, and guaranteed that the pressure that locked mode cylinder 15 is exported is invariable this moment.After the output pressure of locked mode cylinder 15 reached setting value, the main frame slide block drove punch 1 and presses down, and begins to suppress the head of screw of large-scale screw, and the head of screw of outer six squares just is being formed in the impression under all around the pressure effect up and down.
In sum, hydraulic press adopts on a left side half die and right half die arranged outside clamping, and die is provided with retaining mechanism, can make the smooth matched moulds of die, locking, is stabilized in the matched moulds state in forging process, die sinking easily after forging is finished.
See also Fig. 1, the accommodation hole of described large-scale screw screw rod is the through hole on the described sill; This hydraulic press also comprises the bracing or strutting arrangement of described large-scale screw, this bracing or strutting arrangement comprises leading screw 4 and the driving mechanism and the Fixed Nut 16 that is installed on the leading screw 4 that is arranged in the above-mentioned through hole, the large-scale screw 6 of the apical support of leading screw 4, be connected with driving mechanism and Fixed Nut 16 on the leading screw 4, driving mechanism is connected the lower end of leading screw 4.Driving mechanism comprises transmission mechanism and the drive motors 22 thereof that is connected with leading screw 4, and transmission mechanism and drive motors 22 thereof are installed on the fixed mount 23.In order to make compact conformation, stable drive, in the present embodiment, transmission mechanism comprises worm screw 21 that is connected with drive motors 22 and the worm gear 17 that meshes with worm screw 21, the lower end of worm gear 17 is connected with guide pin bushing 19, guide pin bushing 19 upper edges and leading screw 4 parallel directions offer twice guide groove 19-1,19-2, are provided with a guide pad 20 that is fixed in leading screw 4 lower ends in the per pass guide groove.
In order to guarantee transmission safety, above-mentioned worm screw 21 and worm gear 17 are installed in the protective cover 18, and protective cover 18 is fixed on the fixed mount 23.
In sum, on hydraulic press sill 3, the center of corresponding hydraulic press is provided with the accommodation hole of large-scale screw screw rod, above-mentioned accommodation hole is a through hole on sill 3, and leading screw 4 is arranged in the above-mentioned through hole, and the lower end is a drive end, the upper end is a support end, Fixed Nut 16 is fixed on the sill 3, it is evident that, Fixed Nut 16 also can be fixed on the fixed mount 23.Fixed mount 23 is fixed in the bottom of sill 3.Drive motors 22 drives leading screw 4 by transmission mechanism and rotates, and also does when leading screw 4 rotates along the moving of its axis, thereby adjusts the height on its top, makes the top of through hole can hold the large-scale screw 6 of different length.
Although in conjunction with the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.
Claims (10)
1. hydraulic press that is used to suppress large-scale screw, comprise sill and slide block, on the described sill die is installed, on the described slide block punch is installed, it is characterized in that the center of corresponding hydraulic press is provided with the accommodation hole of described large-scale screw screw rod on described sill; Described die is to be combined and clamped to form by a left side half die of symmetrical configuration and right half die, described die is provided with clamp mechanism, the impression of described die is that ladder is poroid, the impression of described die comprises sector hole and following sector hole, the cross section of described upward sector hole and the cross section of described large-scale head of screw are adaptive, the cross section of described down sector hole is adaptive with the cross section of described large-scale shank of screw and communicate with described accommodation hole, described punch and described on sector hole adaptive.
2. the hydraulic press that is used to suppress large-scale screw according to claim 1 is characterized in that, described clamp mechanism comprises clamping and the die retaining mechanism that is connected to a described left side half die and the right half die outside.
3. the hydraulic press that is used to suppress large-scale screw according to claim 2; it is characterized in that; described clamping comprises closing cylinder, and the cylinder bar of described closing cylinder is provided with the joint affixed with the outside of described die, and the center line of described closing cylinder is vertical with the center of die cavity line of described die.
4. the hydraulic press that is used to suppress large-scale screw according to claim 2, it is characterized in that, described die retaining mechanism comprises the clamp arm that is clamped in a described left side half die and the right half die outside respectively, be provided with drift between described clamp arm and adjacent half die, two clamp arm symmetries are fixed in the two ends of pull bar, the middle part of described pull bar is connected with the locked mode cylinder, and described locked mode cylinder center line is vertical with the center of die cavity line of described die.
5. the hydraulic press that is used to suppress large-scale screw according to claim 4 is characterized in that: the outside of a described left side half die and right half die is respectively equipped with the drift detent.
6. the hydraulic press that is used to suppress large-scale screw according to claim 1 is characterized in that, the accommodation hole of described large-scale screw screw rod is the through hole on the described sill; This hydraulic press also comprises the bracing or strutting arrangement of described large-scale screw, the bracing or strutting arrangement of described large-scale screw comprise the described large-scale screw of apical support leading screw and driving mechanism thereof, be installed in the Fixed Nut on the leading screw and support the fixed support of described driving mechanism, described driving mechanism is connected the lower end of described leading screw.
7. the hydraulic press that is used to suppress large-scale screw according to claim 6 is characterized in that described driving mechanism comprises transmission mechanism and drive motors thereof; Described transmission mechanism comprise the worm screw that is connected with drive motors and with the worm gear of described worm engaging, the lower end of described worm gear is connected with guide pin bushing, the described guide pin bushing upper edge direction parallel with described leading screw offers the twice guide groove, be provided with in the per pass guide groove one with the affixed guide pad in lower end of described leading screw.
8. the hydraulic press that is used to suppress large-scale screw according to claim 1 is characterized in that, the bottom of described left and right two halves die is respectively equipped with two detents of opening to the inside.
9. the hydraulic press that is used to suppress large-scale screw according to claim 4 is characterized in that, described joint is a U-joint, the U-shaped mouth of described U-joint forward, described clamp arm correspondence is installed in the U-shaped mouth of described U-joint.
10. the hydraulic press that is used to suppress large-scale screw according to claim 1 is characterized in that described punch and die are made of a steel by hot die steel or hammer forging die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010243054 CN101985149B (en) | 2010-08-02 | 2010-08-02 | Hydraulic machine for pressing large screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010243054 CN101985149B (en) | 2010-08-02 | 2010-08-02 | Hydraulic machine for pressing large screws |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101985149A true CN101985149A (en) | 2011-03-16 |
| CN101985149B CN101985149B (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010243054 Expired - Fee Related CN101985149B (en) | 2010-08-02 | 2010-08-02 | Hydraulic machine for pressing large screws |
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| Country | Link |
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| CN (1) | CN101985149B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151786A (en) * | 2011-04-28 | 2011-08-17 | 上海保捷汽车零部件锻压有限公司 | Wobbler screw head die forging device and die forging method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56154242A (en) * | 1980-04-02 | 1981-11-28 | Waelzlager Normteile Veb | Intermediate mold for hexagon headed bolt or nut with supporting collar and its mold tool |
| CN1481949A (en) * | 2002-09-12 | 2004-03-17 | 福光企业股份有限公司 | Manufacturing process and installation for the thin bolt with spanner pilot hole and hexangular socket head |
| JP2006015401A (en) * | 2004-06-30 | 2006-01-19 | Sakamura Mach Co Ltd | Die supporting apparatus in heading machine |
| CN101537472A (en) * | 2009-04-10 | 2009-09-23 | 日泰（上海）汽车标准件有限公司 | Bolt processing technic featuring one-step molding |
| CN201511094U (en) * | 2009-10-10 | 2010-06-23 | 马勒三环气门驱动(湖北)有限公司 | Valve forging total length fixing mechanism |
-
2010
- 2010-08-02 CN CN 201010243054 patent/CN101985149B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56154242A (en) * | 1980-04-02 | 1981-11-28 | Waelzlager Normteile Veb | Intermediate mold for hexagon headed bolt or nut with supporting collar and its mold tool |
| CN1481949A (en) * | 2002-09-12 | 2004-03-17 | 福光企业股份有限公司 | Manufacturing process and installation for the thin bolt with spanner pilot hole and hexangular socket head |
| JP2006015401A (en) * | 2004-06-30 | 2006-01-19 | Sakamura Mach Co Ltd | Die supporting apparatus in heading machine |
| CN101537472A (en) * | 2009-04-10 | 2009-09-23 | 日泰（上海）汽车标准件有限公司 | Bolt processing technic featuring one-step molding |
| CN201511094U (en) * | 2009-10-10 | 2010-06-23 | 马勒三环气门驱动(湖北)有限公司 | Valve forging total length fixing mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151786A (en) * | 2011-04-28 | 2011-08-17 | 上海保捷汽车零部件锻压有限公司 | Wobbler screw head die forging device and die forging method thereof |
| CN102151786B (en) * | 2011-04-28 | 2013-12-11 | 江苏保捷锻压有限公司 | Wobbler screw head die forging device and die forging method thereof |
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| Publication number | Publication date |
|---|---|
| CN101985149B (en) | 2013-01-09 |
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