CN103274880A - Precise numerical-control two-way pressing hydraulic machine - Google Patents

Precise numerical-control two-way pressing hydraulic machine Download PDF

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Publication number
CN103274880A
CN103274880A CN2013101970049A CN201310197004A CN103274880A CN 103274880 A CN103274880 A CN 103274880A CN 2013101970049 A CN2013101970049 A CN 2013101970049A CN 201310197004 A CN201310197004 A CN 201310197004A CN 103274880 A CN103274880 A CN 103274880A
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China
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cylinder
slide block
hydraulic machine
pressing hydraulic
way pressing
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CN2013101970049A
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Chinese (zh)
Inventor
辛社党
郭金宝
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Tianjin Tianduan Press Co Ltd
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Tianjin Tianduan Press Co Ltd
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Priority to CN2013101970049A priority Critical patent/CN103274880A/en
Publication of CN103274880A publication Critical patent/CN103274880A/en
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Abstract

The invention relates to a precise numerical-control two-way pressing hydraulic machine, which comprises an upper cross beam, a middle beam and a lower cross beam, wherein the upper cross beam is connected with the middle beam through an upper brace, and the lower cross beam is connected with the middle beam through a lower brace; the lower part of the upper cross beam is provided with an upper return cylinder, and the lower part of the upper return cylinder is connected with an upper belt-cylinder sliding block; and the lower part of the upper belt-cylinder sliding block is provided with an upper punch. The precise numerical-control two-way pressing hydraulic machine is characterized in that the upper part of the lower cross beam is provided with a lower return cylinder, and the upper part of the lower return cylinder is connected with a lower belt-cylinder sliding block; the upper part of the lower belt-cylinder sliding block is provided with a lower punch, and the middle of the middle beam is provided with a die sleeve; the lower part of the upper belt-cylinder sliding block is provided with an automatic vacuumizing device; and the upper part of the lower belt-cylinder sliding block is provided with a mechanical limiting device. The precise numerical-control two-way pressing hydraulic machine has the advantages that through the two-way pressing and vacuumizing of a die cavity and the mechanical limiting of a mechanical limiting post in a pressing process, the compactness evenness and the precision of pressed workpieces are greatly increased; and the pressing safety is ensured through the mechanical limiting of the mechanical limiting post.

Description

The two-way pressing hydraulic machine of accurate digital control
Technical field
The invention belongs to the pressing hydraulic machine field, relate in particular to the two-way pressing hydraulic machine of a kind of accurate digital control.
Background technology
At present, along with developing rapidly of China's military industry field, the increasing large-tonnage accurate digital control bidirectional hydraulic machine that uses in the production technique of explosive column.In the compacting of explosive column is produced, need carry out repeatedly the compacting of different positions, in order to reduce the pore on the explosive column, improve the quality of products, when mould stops at different positions, need to open vacuum extractor to carrying out suction air in the mould.
For prevent drift in repeatedly stop and start process easily and mould be offset, therefore, must use stop means to carry out spacing to it.Traditional stop means all adopts electric control structure, because the load of large-tonnage accurate digital control bidirectional hydraulic machine is big, in case the malfunctioning meeting of electrical control causes equipment out of hand, not only can influences quality product, but also operational safety hidden danger occur.
Simultaneously, in the process that vacuumizes, traditional vacuum extractor needs manually vacuumizing joint to be received on the mould, then the medicinal powder in the mould is carried out disposable vacuumizing.Adopt above-mentioned vacuum extractor can't realize that explosive column carries out automatic vacuum when being squeezed to different heights, not only be difficult to guarantee workpiece vacuum tightness in the mould closed cavities, and can not satisfy the needs of full-automatic explosive column production line.
Summary of the invention
The present invention provides a kind of accurate digital control two-way pressing hydraulic machine for solving the technical problem that exists in the known technology, and this hydropress can be suppressed the high powder column of vacuum tightness.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
The two-way pressing hydraulic machine of accurate digital control, comprise top end rail, intermediate beam, bottom end rail, connect by upper supporting column between top end rail and the intermediate beam, connect by lower supporting rod between bottom end rail and the intermediate beam, the bottom of top end rail is provided with kicker cylinder, the bottom of last kicker cylinder links to each other with last band cylinder slide block, the bottom of last band cylinder slide block is provided with upper punch, described bottom end rail top is provided with down kicker cylinder, described kicker cylinder top down is connected with being with the cylinder slide block down, and lower punch is equipped with on the described cylinder of band down slide block top, and the middle part of intermediate beam is equipped with die sleeve, described going up is with the bottom of cylinder slide block to be provided with the automatic vacuum device, and described going up is with the cylinder slide block and is with the cylinder slide block to be provided with mechanical stop limiter down.
The present invention can also adopt following technical scheme:
Described mechanical stop limiter comprises the adjustable limiting post that is installed in down on the band cylinder slide block, is arranged on the limited block on the adjustable limiting post, the last mechanical position limitation post that is installed in band cylinder slider bottom, level promotion oil cylinder and orienting lug, described level promotes oil cylinder piston bar one end and is connected with multistage limited block, and is with orienting lug and is slidingly matched.
Described level promotes oil cylinder piston bar one end and is connected with two multistage limited blocks of making one.
Described multistage limited block one side adopts step structure.
Described automatic vacuum device comprise with last band cylinder slide block affixed vacuumize sealing platen hold-down cylinder, the other end of described hold-down cylinder is connected with and vacuumizes the sealing platen, described vacuumize the sealing platen by vacuum-lines with vacuumize pumping plant and be communicated with.
The described pumping plant that vacuumizes comprises vacuum pumping pump, is arranged on the hay tank of vacuum pumping pump one side and is arranged on the cooling tank of vacuum pumping pump opposite side.
Described vacuumize sealing platen and upper punch contact site, described vacuumize to seal between platen and the die sleeve be equipped with sealing-ring.
Advantage and positively effect that the present invention has are: because the present invention adopts technique scheme; be that the press drift is when different closed positions; limited post contacts with multistage limited block with the mechanical position limitation of multistage limited block and protects when promoting multistage limited block adjustment thickness with the assurance different heights by cylinder; so not only can avoid the operational safety hidden danger that causes because electrical control is malfunctioning, but also can improve the quality of products.By tele-control system this automatic vacuum device is controlled, and promote to vacuumize dish by hold-down cylinder and realize the automatic butt mould, can realize that explosive column carries out automatic vacuum and can guarantee workpiece vacuum tightness in the mould closed cavities when being squeezed to different heights, not only can reduce bubble, raising powder column quality product that powder column occurs in pressing process, but also can increase work efficiency.By the compacting of two-way position and in pressing process to the mechanical position limitation of the vacuumizing of die cavity, mechanical position limitation post, make the close uniformity coefficient of workpiece matter and the precision of compacting be greatly improved, guaranteed the security of compacting by the mechanical position limitation of mechanical position limitation post.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of mechanical stop limiter of the present invention;
Fig. 3 is the side-view of Fig. 2;
Fig. 4 is automatic vacuum apparatus structure synoptic diagram of the present invention.
Among the figure: 1, pull bar; 2, locknut; 3, top end rail; 4, go up kicker cylinder; 5, be with the cylinder slide block on; 6, upper supporting column; 7, go up the mechanical position limitation post; 8, upper punch; 9, sealing platen hold-down cylinder; 10, vacuumize the sealing platen; 11, die sleeve; 12, intermediate beam; 13, lower punch; 14, adjustable limiting post; 15, lower supporting rod; 16, be with the cylinder slide block down; 17, following kicker cylinder; 18, bottom end rail; 19, limited block; 20, multistage limited block; 21, orienting lug; 22, level promotes oil cylinder; 23, vacuum-lines; 24, hay tank; 25, cooling tank; 26, sealing-ring; 27, vacuum pump; 28, powder column.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, the two-way pressing hydraulic machine of a kind of accurate digital control, comprise top end rail 3, intermediate beam 12, bottom end rail 18, top end rail is fastening by the locknut 2 of pull bar 1 end, connect by upper supporting column 6 between top end rail and the intermediate beam, connect by lower supporting rod 15 between bottom end rail and the intermediate beam, the bottom of top end rail is provided with kicker cylinder 4, the bottom of last kicker cylinder links to each other with last band cylinder slide block 5, the bottom of last band cylinder slide block is provided with upper punch 8, the top of bottom end rail is provided with down kicker cylinder 17, the top of following kicker cylinder links to each other with being with cylinder slide block 16 down, and the top of following band cylinder slide block is provided with lower punch, and the middle part of intermediate beam is provided with die sleeve 11, the bottom of last band cylinder slide block is provided with the automatic vacuum device, and described going up on band cylinder slide block and the following band cylinder slide block is equipped with mechanical stop limiter.
See also Fig. 2-3, described mechanical stop limiter comprises the adjustable limiting post 14 that is installed in down on the band cylinder slide block, be arranged on limited block 19 on the adjustable limiting post, be installed in last mechanical position limitation post 7, level promotion oil cylinder 22 and the orienting lug 21 of band cylinder slide block 5 bottoms on the hydropress, level promotes oil cylinder piston bar one end and is connected with multistage limited block 20, multistage limited block is inserted in the orienting lug 21, and is with orienting lug and is slidingly matched.In the present embodiment, promote oil cylinder piston bar one end and be connected with two multistage limited blocks 20 of making one.Multistage limited block one side adopts step structure, and namely the side at multistage limited block is shaped on the step of suppressing station for three different heights of press upper punch.
See also Fig. 4, the automatic vacuum device comprise with last band cylinder slide block 5 affixed vacuumize sealing platen hold-down cylinder 9, the other end of hold-down cylinder is connected with and vacuumizes sealing platen 10, vacuumize the sealing platen by vacuum-lines 23 with vacuumize pumping plant and be communicated with.Vacuumizing pumping plant comprises vacuum pumping pump 27, is arranged on the hay tank 24 of vacuum pumping pump one side and is arranged on the cooling tank 25 of vacuum pumping pump opposite side.Vacuumize sealing platen and upper punch contact site, vacuumize to seal between platen and the die sleeve and be provided with sealing-ring 26.
Operating principle of the present invention is:
The described cylinder of band down slide block 16 drives on the lower punch 13 and moves to the powder charge position, by the feeding device powder charge powder in the die cavity of press of weighing automatically on the production line, after the medicinal powder in the mould smooths by the powder flattening device on the production line, it is descending fast that last band cylinder slide block 5 drives upper punch 8, vacuumize the sealing platen with the upper punch DL synchronization, before upper punch was entering the sealing die cavity, the die end face that vacuumizes sealing platen and mould was fitted and sealing.Last band cylinder slide block is descending at a slow speed, goes up band cylinder slide block and band cylinder slide block pressurization compacting down then, makes to vacuumize the sealing platen and push down the die cavity top, vacuumizes.Producing at accurate digital control bidirectional hydraulic machine in the process of explosive column, in order to guarantee the quality product of explosive column, upper punch need stop three positions, and by the tele-control system sender, after vacuum pumping pump is received instruction, to beginning the work of vacuumizing in the mould medicinal powder closed cavities, this process also can be carried out (vacuumize during compacting hold-down cylinder is passive to be return) in compacting.When the vacuum tightness in the medicinal powder closed cavities reached set(ting)value, vacuum pumping pump quit work, and upper punch continues the suppression process of descending beginning powder column 28, to reduce the pore on the explosive column.When last band cylinder slide block need stop at different positions, promote multistage limited block by level promotion oil cylinder and guarantee different heights to adjust thickness, the adjustable limiting post contacts with multistage limited block, realizes the mechanical position limitation protection.
In the present embodiment, by tele-control system this automatic vacuum device is controlled, and promote to vacuumize the sealing platen and realize the automatic butt mould by vacuumizing sealing platen hold-down cylinder, can realize that explosive column carries out automatic vacuum and can guarantee workpiece vacuum tightness in the mould closed cavities when being squeezed to different heights, not only can reduce bubble, raising powder column quality product that powder column occurs in pressing process, but also can increase work efficiency.
Because in the present embodiment; be that the press upper punch is when different closed positions; promote oil cylinder by level and promote multistage limited block adjustment thickness; limited post contacts with multistage limited block with the mechanical position limitation of multistage limited block and protects during with the assurance different heights; so not only can avoid the operational safety hidden danger that causes because electrical control is malfunctioning, but also can improve the quality of products.
Although by reference to the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned 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 (7)

1. two-way pressing hydraulic machine of accurate digital control, comprise top end rail, intermediate beam, bottom end rail, connect by upper supporting column between top end rail and the intermediate beam, connect by lower supporting rod between bottom end rail and the intermediate beam, the bottom of top end rail is provided with kicker cylinder, the bottom of last kicker cylinder links to each other with last band cylinder slide block, the bottom of last band cylinder slide block is provided with upper punch, it is characterized in that: described bottom end rail top is provided with down kicker cylinder, described kicker cylinder top down is connected with being with the cylinder slide block down, lower punch is equipped with on the described cylinder of band down slide block top, the middle part of intermediate beam is equipped with die sleeve, described going up is with the bottom of cylinder slide block to be provided with the automatic vacuum device, and described going up is with the cylinder slide block and is with the cylinder slide block to be provided with mechanical stop limiter down.
2. the two-way pressing hydraulic machine of accurate digital control according to claim 1, it is characterized in that: described mechanical stop limiter comprises the adjustable limiting post that is installed in down on the band cylinder slide block, is arranged on the limited block on the adjustable limiting post, the last mechanical position limitation post that is installed in band cylinder slider bottom, level promotion oil cylinder and orienting lug, described level promotes oil cylinder piston bar one end and is connected with multistage limited block, and is with orienting lug and is slidingly matched.
3. the two-way pressing hydraulic machine of accurate digital control according to claim 2 is characterized in that: described level promotes oil cylinder piston bar one end and is connected with two multistage limited blocks of making one.
4. the two-way pressing hydraulic machine of accurate digital control according to claim 3 is characterized in that: described multistage limited block one side employing step structure.
5. the two-way pressing hydraulic machine of accurate digital control according to claim 1, it is characterized in that: described automatic vacuum device comprise with last band cylinder slide block affixed vacuumize sealing platen hold-down cylinder, the other end of described hold-down cylinder is connected with and vacuumizes the sealing platen, described vacuumize the sealing platen by vacuum-lines with vacuumize pumping plant and be communicated with.
6. the two-way pressing hydraulic machine of accurate digital control according to claim 5 is characterized in that: the described pumping plant that vacuumizes comprises vacuum pumping pump, is arranged on the hay tank of vacuum pumping pump one side and is arranged on the cooling tank of vacuum pumping pump opposite side.
7. the two-way pressing hydraulic machine of accurate digital control according to claim 5 is characterized in that: described vacuumize sealing platen and upper punch contact site, described vacuumize to seal between platen and the die sleeve be provided with sealing-ring.
CN2013101970049A 2013-05-24 2013-05-24 Precise numerical-control two-way pressing hydraulic machine Pending CN103274880A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105272780A (en) * 2015-11-02 2016-01-27 西安近代化学研究所 Explosive molding powder pressing system
CN108655316A (en) * 2018-04-20 2018-10-16 天津市天锻压力机有限公司 Hydraulic forging press for wrought magnesium alloy wheel hub
CN113666791A (en) * 2021-07-23 2021-11-19 河南北方红阳机电有限公司 High-overload-resistant cylinder or special-shaped body forming hydraulic machine and machining process
CN115947637A (en) * 2022-11-24 2023-04-11 合肥海德数控液压设备有限公司 Automatic medicine system of pressing of high accuracy hydraulic press

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0340505A2 (en) * 1988-05-05 1989-11-08 Sms Schloemann-Siemag Aktiengesellschaft Operating process and roll train for continuously rolling a sectional bar to a finished profile section with given accurate dimensions
CN101249596A (en) * 2008-03-25 2008-08-27 济南德佳机器控股有限公司 Welder of quick switching welding line
CN201596603U (en) * 2009-11-11 2010-10-06 肖根福罗格注胶技术(苏州工业园区)有限公司 Glue supply equipment
CN102173964A (en) * 2011-01-17 2011-09-07 合肥合锻机床股份有限公司 Numerically-controlled automatic forming bidirectional medicine pressing hydraulic machine
CN202011843U (en) * 2011-01-17 2011-10-19 合肥合锻机床股份有限公司 Vacuumizing device for hydraulic explosive pressing machine
CN203284348U (en) * 2013-05-24 2013-11-13 天津市天锻压力机有限公司 Precise numerical-control bidirectional explosive powder hydraulic press

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0340505A2 (en) * 1988-05-05 1989-11-08 Sms Schloemann-Siemag Aktiengesellschaft Operating process and roll train for continuously rolling a sectional bar to a finished profile section with given accurate dimensions
CN101249596A (en) * 2008-03-25 2008-08-27 济南德佳机器控股有限公司 Welder of quick switching welding line
CN201596603U (en) * 2009-11-11 2010-10-06 肖根福罗格注胶技术(苏州工业园区)有限公司 Glue supply equipment
CN102173964A (en) * 2011-01-17 2011-09-07 合肥合锻机床股份有限公司 Numerically-controlled automatic forming bidirectional medicine pressing hydraulic machine
CN202011843U (en) * 2011-01-17 2011-10-19 合肥合锻机床股份有限公司 Vacuumizing device for hydraulic explosive pressing machine
CN203284348U (en) * 2013-05-24 2013-11-13 天津市天锻压力机有限公司 Precise numerical-control bidirectional explosive powder hydraulic press

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105272780A (en) * 2015-11-02 2016-01-27 西安近代化学研究所 Explosive molding powder pressing system
CN108655316A (en) * 2018-04-20 2018-10-16 天津市天锻压力机有限公司 Hydraulic forging press for wrought magnesium alloy wheel hub
CN113666791A (en) * 2021-07-23 2021-11-19 河南北方红阳机电有限公司 High-overload-resistant cylinder or special-shaped body forming hydraulic machine and machining process
CN115947637A (en) * 2022-11-24 2023-04-11 合肥海德数控液压设备有限公司 Automatic medicine system of pressing of high accuracy hydraulic press

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Application publication date: 20130904