CN103522577B - Undershoot springback device of powder forming machine - Google Patents
Undershoot springback device of powder forming machine Download PDFInfo
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- CN103522577B CN103522577B CN201310505604.7A CN201310505604A CN103522577B CN 103522577 B CN103522577 B CN 103522577B CN 201310505604 A CN201310505604 A CN 201310505604A CN 103522577 B CN103522577 B CN 103522577B
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- undershoot
- once
- fixed base
- base plate
- forming machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
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- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention provides an undershoot springback device of a powder forming machine. The device comprises a fixed base plate fixedly installed on a rack of the powder forming machine, wherein a two-undershoot assembly is installed in the center of the fixed base plate, a one-undershoot assembly is assembled outside the two-undershoot assembly in a sliding mode, the one-undershoot assembly comprises a one-undershoot plate, a one-undershoot subplate installed on the upper surface of the one-undershoot plate and a one undershoot installed on the upper surface of the one-undershoot subplate, and a female die fixed to a female die plate is assembled outside the upper end of the one undershoot in a sliding mode; an undershoot subplate is further assembled outside the two-undershoot assembly in a sliding mode, the undershoot subplate is located between the one-undershoot assembly and the fixed base plate, and at least two springback mechanisms used for driving the undershoot subplate to move upwards are evenly distributed in the upper circumferential direction of the fixed base plate. The undershoot springback device of the powder forming machine is simple and compact in structure, convenient to use, low in manufacturing cost and capable of improving the yield of products and reducing production cost.
Description
Technical field
The present invention relates to a kind of powder forming machine, particularly a kind of powder forming machine undershoot resilient mounting.
Background technology
Powder forming machine is in forming process, one undershoot and two undershoot forced compression, undershoot is by the pressure of every square centimeter of about 6-6.5T, such as undershoot shortening amount is 3.5-4/1000mm, due to a undershoot, the length of two undershoots is different, therefore its shortening amount is different, as the long 100mm of a undershoot, the long 300mm of two undershoots, one undershoot shortening amount is 0.35mm, the shortening amount 1.05mm of two undershoots, the gap of 0.7mm is produced after elastic recovery, step on the upper surface of two undershoots and product lower surface is fitted, and the upper surface of a undershoot and product shaft shoulder face produce the gap of 0.7mm, and product depanning moves downward realization by former, huge frictional force can be produced between former inwall and product sidewall during depanning, because the two punching conducts only with product lower surface center support, this frictional force forms the arm of force, thus draw crumble product when depanning, cause product rejection, thus increase production cost, abroad have and adopt servo hydraulic system to solve the problem, realize controlling by CNC, but this system architecture is complicated, place one's entire reliance upon import, cost is high, is more than 5 times of cost of the present invention, and cannot carry out restoration and reuse on the mechanical-moulded shape machine of existing powder.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention be to provide a kind of can gap between auto-compensation one undershoot and product, and the powder forming machine undershoot resilient mounting transformed can be carried out on the basis of existing powder forming machine.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of powder forming machine undershoot resilient mounting, comprise the fixed base plate be fixedly mounted in powder forming machine frame, described fixed base plate center is provided with two undershoot assemblies, described two undershoot assemblies comprise the two undershoot cushion blocks being arranged on described fixed base plate center, be arranged on two undershoot backing plates of described two undershoot cushion block upper surfaces and be arranged on two undershoots of described two undershoot backing plate upper surfaces, described two undershoot component external are equipped with a undershoot assembly, a described undershoot assembly comprises punching, the once plate of die head once of punching upper surface and a undershoot of once die head plate upper surface described in being arranged on described in being arranged on, the described end outside that once rushes to is equipped with the former be fixed on negative template, described two undershoot component external are also equipped with undershoot backing plate, described undershoot backing plate is between a described undershoot assembly and described fixed base plate, on described fixed base plate, circumference is evenly equipped with at least two rebounding mechanisms for driving described undershoot backing plate to move up, the upper surface circumference of described undershoot backing plate is evenly equipped with two blocks, the lower end of described punching is once provided with the slide block corresponding with described block, the lower surface of once punching described in described slide block can be arranged on radially sliding, the skewback coordinated with described slide block is provided with in described punching once, described in the upper surface of described skewback extends upwardly to once outside punching, described negative template lower end is provided with and moves down down tringle for triggering described skewback, described rebounding mechanism comprises sliding plug and offers the oil cylinder guide holder of guide hole, the upper surface circumference of described fixed base plate is evenly equipped with at least two cylinder holes, described oil cylinder guide holder is fixed in described cylinder holes, described sliding plug is sliding to be fitted in described cylinder holes and described cunning sliding stopper rod is beyond the Great Wall connected to described undershoot backing plate after passing described guide hole, and the bottom surface of described cylinder holes offers the hydraulic fluid port for fuel feeding.
Further, described cylinder holes is shoulder hole, and described oil cylinder guide holder is bolted in described shoulder hole.
Further, the upper end sidewall of described oil cylinder guide holder offers air inlet, and the bottom of described oil cylinder guide holder offers the gas outlet be communicated with described air inlet.
(3) beneficial effect
Powder forming machine undershoot resilient mounting of the present invention, rebounding mechanism is driven to move upward by quantitative oil supply device, thus a undershoot assembly is moved upward, to fill up by a undershoot, two undershoot decrements are different and the gap that produces, solve owing to having gap between a undershoot and product surface and cause the problem damaged during product depanning; Powder forming machine undershoot resilient mounting of the present invention, structure is simple, compact, easy to use, and low cost of manufacture improves product percent of pass, decreases production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of powder forming machine undershoot resilient mounting filler of the present invention;
Fig. 2 is the structural representation of powder forming machine undershoot resilient mounting formed product of the present invention;
Fig. 3 is the structural representation that powder forming machine undershoot resilient mounting upper punch of the present invention resets;
Fig. 4 is the structural representation of powder forming machine undershoot resilient mounting rebounding mechanism of the present invention when ejecting;
Structural representation when Fig. 5 is powder forming machine undershoot resilient mounting depanning of the present invention;
Structural representation when Fig. 6 is powder forming machine undershoot resilient mounting of the present invention complete depanning;
Fig. 7 is A portion enlarged drawing in Fig. 1;
In figure: 1, upper coupling block; 2, rush-up seat; 3, upper punch; 4, former; 5, negative template; 6, tringle is gone out under; 7, skewback; 8, once punching; 9, slide block; 10, block; 11, undershoot backing plate; 12, oil cylinder guide holder; 13, fixed base plate; 14, sliding plug; 15, plug piston rod; 16, piston/cylinder; 17, lower shoe; 18, lower connection block; 19, a undershoot; 20, once die head plate; 21, two undershoots; 22, two undershoot backing plates; 23, two undershoot cushion blocks; 31, the first solenoid directional control valve; 32, the second solenoid directional control valve; 33, the 3rd solenoid directional control valve; 34 quantitative oil cylinders.
Detailed description of the invention
Consult Fig. 1 ~ Fig. 6, the invention provides a kind of powder forming machine undershoot resilient mounting, comprise the fixed base plate 13 be fixedly mounted in powder forming machine frame, two undershoot assemblies are installed at fixed base plate center, this two undershoots assembly comprises the two undershoot cushion blocks 23 being arranged on fixed base plate 13 center, be arranged on two undershoot backing plates 22 of two undershoot cushion block 23 upper surfaces and be arranged on two undershoots 21 of two undershoot backing plate 22 upper surfaces, two undershoot component external cunnings join (being slidably matched) a undershoot assembly, this undershoot assembly comprises punching 8, be arranged on the plate of die head 20 of punching 8 upper surface and be arranged on a undershoot 19 of die head plate 20 upper surface, one outside, undershoot 19 upper end is equipped with the former 4 be fixed on negative template 5, two undershoot component external also cunning join (being slidably matched) and have undershoot backing plate 11, this undershoot backing plate 11 is between a undershoot assembly and fixed base plate 13, on fixed base plate 13, circumference is evenly equipped with at least two rebounding mechanisms for driving undershoot backing plate 11 to move up, in the present embodiment, be evenly equipped with two blocks 10 in the upper surface circumference of undershoot backing plate 11, once, the lower end of punching 8 is provided with the slide block 9 corresponding with block 10, this slide block 9 can be arranged on the lower surface of punching 8 with radially sliding, the skewback 7 coordinated with slide block is provided with once in punching 8, the upper surface of skewback 7 extends upwardly to outside punching 8, and negative template 5 lower end is provided with and moves down down tringle 6 for triggering skewback 7, consult Fig. 7, in the present embodiment, rebounding mechanism comprises sliding plug 14 and offers the oil cylinder guide holder 12 of guide hole, the upper surface circumference of fixed base plate is evenly equipped with at least two cylinder holes, oil cylinder guide holder 12 is fixed in cylinder holes, sliding (sliding up and down to coordinate) the sliding stopper rod in cylinder holes and on sliding plug 14 of joining of sliding plug 14 is connected to undershoot backing plate 11 through after guide hole, offers the hydraulic fluid port for quantitative fuel feeding in the bottom surface of cylinder holes, further, cylinder holes is shoulder hole, and oil cylinder guide holder is bolted in this shoulder hole, the upper end sidewall of oil cylinder guide holder offers air inlet, and the bottom of oil cylinder guide holder offers the gas outlet be communicated with air inlet.
Below structure is elaborated:
Upper punch 3 is fixed on rush-up seat 2, and rush-up seat 2 is fixed on coupling block 1, and upper coupling block is connected with the top shoe of powder forming machine, can realize moving up and down; Be provided with former 4 in negative template 5, negative template is connected (not shown) with guide pillar screw, and guide pillar can slide up and down to successively through punching 8, undershoot backing plate 11, fixed base plate 13 are connected with lower shoe 17 screw afterwards once; Once punching 8 is installed on die head plate 20, once die head plate 20 is installed undershoot 19, undershoot 19, once die head plate and once punching form a undershoot assembly, it can realize relatively moving up and down relative to two undershoot assemblies; Once punching lower plane is symmetrically installed with two slide blocks 9, and this slide block 9 can radially slide, and is provided with skewback 7 once in punching 8, and the contact surface of skewback and slide block is inclined-plane, and when skewback declines, two slide blocks are removed laterally, and when skewback rises, two slide blocks move in opposite directions; Fixed base plate 13 lower surface is fixedly mounted in the frame of powder forming machine, fixed base plate upper surface is provided with undershoot backing plate, undershoot backing plate is provided with two blocks 10 in left and right, block coordinates with slide block, two undershoot cushion blocks 23 are installed at fixed base plate center, two undershoot cushion blocks 23 are installed on two undershoot backing plate 22, two undershoot backing plates 22 and be provided with two undershoots, this two undershoot, two undershoot backing plates 22 and two undershoot cushion blocks 23 form two undershoot assemblies; Be evenly equipped with at least two in fixed base plate inner circumferential to fill in and oil cylinder guide holder for the cunning driving undershoot backing plate to move up.
In order to realize quantitative fuel feeding, the present invention is also equipped with quantitative oil supply system;
This quantitative oil supply system includes quantitative oil cylinder 34, and the piston rod of quantitative oil cylinder is provided with adjusting nut, for the movement travel of control piston, oil pump, there is A1, B1, P1, first solenoid directional control valve 31 of T1 hydraulic fluid port, there is A2, B2, P2, second solenoid directional control valve 32 of T2 hydraulic fluid port, there is A3, B3, P3, 3rd solenoid directional control valve 33 of T3 hydraulic fluid port, the hydraulic fluid port of the rod chamber of quantitative oil cylinder 34 connects the A1 hydraulic fluid port of the first solenoid directional control valve 31, the P1 hydraulic fluid port of the first solenoid directional control valve 31 is connected to oil pump, T1 mouth is connected to fuel tank, the rodless cavity hydraulic fluid port of quantitative oil cylinder 34 connects the P2 hydraulic fluid port of the second solenoid directional control valve 32, the B2 hydraulic fluid port of the second solenoid directional control valve 32 connects the B1 hydraulic fluid port of the first solenoid directional control valve 31, the rodless cavity hydraulic fluid port of rebounding mechanism is connected to after the A2 hydraulic fluid port of the second solenoid directional control valve 32 and the A3 hydraulic fluid port of the 3rd solenoid directional control valve 33 are merged into a road by the road, the P3 hydraulic fluid port of the 3rd solenoid directional control valve 33 is communicated with fuel tank, the T2 hydraulic fluid port of T3 hydraulic fluid port and the second solenoid directional control valve 32 is all closed, this is first years old, second and the 3rd solenoid directional control valve be two four-way electromagnetic reversing valves.
Below job step is elaborated:
Consult Fig. 1, former move on to filling position, once punching, once die head plate, be flushed to filling position once, in former, fill up powder;
Consult Fig. 2, upper punch moves down into lower dead center, negative template is controlled to move down into shaping position by lower main axis, one undershoot, once die head plate, once punching, slide block move down, slide block contacts with block, block and be flushed to shaping position, at this moment, a undershoot, two undershoot forced contraction, because its stressed every square reaches 6-6.5T, such as: the shortening amount of undershoot is 3.5-4/1000mm, as the long 100mm of a undershoot, then its decrement is 0.35mm, and two undershoots are 300mm, then its decrement be 1.05, one, the decrement of two undershoots difference h be 0.7mm;
Consult Fig. 3, on break through and move up after bottom dead center, the backward upper resilience 0.35mm of one undershoot power with no pressure, two undershoots are without the backward upper resilience 1.05mm of pressure, springback capacity difference h is 0.7mm, the controlled 0.7mm that moves up of plunger distance in fixed base plate, jack-up undershoot backing plate moves up, and the block on undershoot backing plate, slide block, once punching, once die head plate, a undershoot are to correspondingly upper motion 0.7mm;
Consult Fig. 4 to Fig. 6, former, negative template by guide pillar, lower shoe, lower connection block by powder forming machine lower main axis to movement, negative template lower plane goes out tringle under installing, eject skewback, skewback moves down the outwards movement of driving two slide block, then descends depanning masthead to live punching, at this moment, one undershoot, once die head block, once punching, two slide blocks move down, until the product of compacting is outside mould, complete depanning.
Accordingly, quantitative oil supply system job step is as follows:
Before work, the position of the adjusting nut according to demand on adjustment quantitative oil cylinder, thus control quantitative in-oil cylinder piston stroke, control the oil pump capacity in rodless cavity, namely control the ejection stroke of ejection cylinder, during work, first, two solenoid directional control valve energisings, 3rd solenoid directional control valve power-off, pressure oil is by the rod chamber to quantitative oil cylinder after the first solenoid directional control valve, under the effect of pressure oil, oil in rodless cavity is under the effect of piston, the rodless cavity of ejection cylinder (rebounding mechanism) is flowed into after the second solenoid directional control valve, the piston rod of ejection cylinder (rebounding mechanism) is made upwards to eject certain distance, this distance is determined by the oil pump capacity of quantitative oil cylinder rodless cavity, then, first, two solenoid directional control valve power-off, pressure oil on oil pump passes through the P1 chamber of the first solenoid directional control valve to B1 chamber, again to the B2 chamber of the second solenoid directional control valve, pressure oil in B2 chamber enters the rodless cavity of quantitative oil cylinder behind P2 chamber, thus promotion piston, the oil in the rod chamber of quantitative oil cylinder is made to flow into fuel tank after the A1 mouth of the first solenoid directional control valve, now, ejection cylinder (rebounding mechanism) is without moving back oil, the support force going out mould can be born, after product depanning, former rises to filling position, after filling powder in die cavity, undershoot moves down and starts compacting, now, 3rd solenoid directional control valve energising, the piston of ejection cylinder under pressure, extrude the hydraulic oil in rodless cavity, this hydraulic oil from the A3 chamber of the 3rd solenoid directional control valve to P3 chamber after oil return box, when the piston movement in ejection cylinder is to bottom, 3rd solenoid directional control valve cuts out, complete a working cycles.
Powder forming machine undershoot resilient mounting of the present invention, structure is simple, compact, easy to use, low cost of manufacture, and product qualification rate reaching is high, decreases production cost.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a powder forming machine undershoot resilient mounting, it is characterized in that: comprise the fixed base plate be fixedly mounted in powder forming machine frame, described fixed base plate center is provided with two undershoot assemblies, described two undershoot assemblies comprise the two undershoot cushion blocks being arranged on described fixed base plate center, be arranged on two undershoot backing plates of described two undershoot cushion block upper surfaces and be arranged on two undershoots of described two undershoot backing plate upper surfaces, described two undershoot component external are equipped with a undershoot assembly, a described undershoot assembly comprises punching, the once plate of die head once of punching upper surface and a undershoot of once die head plate upper surface described in being arranged on described in being arranged on, the described end outside that once rushes to is equipped with the former be fixed on negative template, described two undershoot component external are also equipped with undershoot backing plate, and described undershoot backing plate is between a described undershoot assembly and described fixed base plate, and on described fixed base plate, circumference is evenly equipped with at least two rebounding mechanisms for driving described undershoot backing plate to move up, the upper surface circumference of described undershoot backing plate is evenly equipped with two blocks, the lower end of described punching is once provided with the slide block corresponding with described block, the lower surface of once punching described in described slide block can be arranged on radially sliding, the skewback coordinated with described slide block is provided with in described punching once, described in the upper surface of described skewback extends upwardly to once outside punching, described negative template lower end is provided with and moves down down tringle for triggering described skewback, described rebounding mechanism comprises sliding plug and offers the oil cylinder guide holder of guide hole, the upper surface circumference of described fixed base plate is evenly equipped with at least two cylinder holes, described oil cylinder guide holder is fixed in described cylinder holes, described sliding plug is sliding to be fitted in described cylinder holes and described cunning sliding stopper rod is beyond the Great Wall connected to described undershoot backing plate after passing described guide hole, and the bottom surface of described cylinder holes offers the hydraulic fluid port for fuel feeding.
2. powder forming machine undershoot resilient mounting as claimed in claim 1, it is characterized in that: described cylinder holes is shoulder hole, described oil cylinder guide holder is bolted in described shoulder hole.
3. powder forming machine undershoot resilient mounting as claimed in claim 2, it is characterized in that: the upper end sidewall of described oil cylinder guide holder offers air inlet, the bottom of described oil cylinder guide holder offers the gas outlet be communicated with described air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310505604.7A CN103522577B (en) | 2013-10-22 | 2013-10-22 | Undershoot springback device of powder forming machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310505604.7A CN103522577B (en) | 2013-10-22 | 2013-10-22 | Undershoot springback device of powder forming machine |
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| Publication Number | Publication Date |
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| CN103522577A CN103522577A (en) | 2014-01-22 |
| CN103522577B true CN103522577B (en) | 2015-05-13 |
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| CN201310505604.7A Active CN103522577B (en) | 2013-10-22 | 2013-10-22 | Undershoot springback device of powder forming machine |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215355A (en) * | 2015-10-30 | 2016-01-06 | 扬州市海力精密机械制造有限公司 | Powder metallurgy die elastic deformation compensation mechanism and the course of work thereof |
| CN105215354A (en) * | 2015-10-30 | 2016-01-06 | 扬州市海力精密机械制造有限公司 | Powder metallurgy die elastic deformation servo compensation system |
| CN106626504A (en) * | 2016-12-31 | 2017-05-10 | 扬州市海力精密机械制造有限公司 | Novel formwork hydraulic compensation control mechanism |
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| GB1026974A (en) * | 1962-02-02 | 1966-04-20 | Fahr Ag Maschf | Method of and apparatus for ejecting and removing pressings from presses |
| CN86108609A (en) * | 1986-12-20 | 1988-07-06 | 上海合金材料总厂 | Powder shaping press |
| CN2611138Y (en) * | 2002-11-25 | 2004-04-14 | 严培义 | Powder formation machine |
| CN1631663A (en) * | 2004-12-22 | 2005-06-29 | 严培义 | Powder forming machine |
| CN102489701A (en) * | 2011-12-12 | 2012-06-13 | 上海平野磁气有限公司 | Full-automatic magnetic powder forming press machine |
| CN203680859U (en) * | 2013-10-22 | 2014-07-02 | 宁波汇众粉末机械制造有限公司 | Punch-down rebounding device for powder forming machine |
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- 2013-10-22 CN CN201310505604.7A patent/CN103522577B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1026974A (en) * | 1962-02-02 | 1966-04-20 | Fahr Ag Maschf | Method of and apparatus for ejecting and removing pressings from presses |
| US3132378A (en) * | 1962-09-06 | 1964-05-12 | Cincinnati Shaper Co | Releasable stop device for presses and the like |
| CN86108609A (en) * | 1986-12-20 | 1988-07-06 | 上海合金材料总厂 | Powder shaping press |
| CN2611138Y (en) * | 2002-11-25 | 2004-04-14 | 严培义 | Powder formation machine |
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| CN103522577A (en) | 2014-01-22 |
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