CN103691813A - Special bending machine mould for special R-type plate and processing method of part thereof - Google Patents
Special bending machine mould for special R-type plate and processing method of part thereof Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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Abstract
The invention discloses a special bending machine mould for a special R-type plate. The mould belongs to the field of mould design. The device comprises an upper mould and a lower mould; the upper mould comprises an upper mould clamping part, an upper mould body and an upper mould bottom surface in sequence from top to bottom; the lower mould comprises an inner clamping rotation block, a pressure block, a bolt and a lower mould body. Due to the adoption of the mould, a work piece to be processed can be processed at one time, the precision is high, secondary manual processing is not needed, the surface of the work piece is not damaged, the operation is convenient, and the cost is low. Meanwhile, the invention also provides a processing method of an inner clamping rotation block in the special bending machine mould for the special R-type plate, the processed inner clamping rotation block has higher hardness, toughness and wear resistance, the inner clamping rotation block is still used normally after being processed and used for 10,000 times, and the service life is long.
Description
Technical field
The invention belongs to Design of Dies field, specifically, relate to a kind of bending machine die, more particularly, relate to the processing method of the special-purpose bending machine die of a kind of special R based plate and parts thereof.
Background technology
Bending machine die is that bender is used for the instrument of machine-shaping plate, and this instrument consists of various parts, and the part that different moulds forms is different.It mainly realizes the processing of article profile by the change of institute's moulding material physical state.Under the effect of bender pressure, by leading each other of upper die of bending machine and counterdie, blank is become and have the workpiece of given shape and size.In actual production process, enterprise can, according to the difference of shaping workpiece shape or size, configure the counterdie of different groove angles.But along with expanding economy, the shape of the workpiece of the bending of wanting is also more and more diversified, different like this workpiece just needs special mould to process, for example at antitheft door, add man-hour, need a special R based plate, its shape as shown in Figure 1, sheet material to be converted at middle part one curved, after being converted into be shaped as middle part be a semicircular circular arc, circular arc both sides are comprised of two planes, be called the first plane and the second plane, angle between the first plane and the second plane is 105 °, the first plane is connected with circular arc, the angle of the tangent line on the first plane and circular arc summit is 5 °, the angle between the first plane and the line of two end points of circular arc is 85 °, this workpiece requires comparatively strict for angle, add that again formed bending opening is little, so difficulty of processing is very large.
In prior art, the Bending Mould of bending circular arc is a lot, China Patent No. for example: 201220311573.2, open day on January 30th, 2013, the patent document that a name is called circular arc mould in sheet material bending is disclosed, this utility model discloses circular arc mould in a kind of sheet material bending, comprise drift and bed die, this bed die is comprised of mould piece and base, two mould pieces are symmetrical fixing two D type structures, the cambered surface of two D mould pieces is inside, between two D mould pieces, form groove, described drift lower end is cone structure.Described groove width is 90～100mm, is preferably 96mm.Drift lower end is cone structure, and drift and groove are used in conjunction with.This utility model has been improved traditional V-type Bending Mould, utilizes the mould of this utility model can improve the production efficiency of bending and forming, guarantee part require in arc size, effective.
China Patent No.: 201320105342.0, open day on August 14th, 2013, the patent document that a name is called a kind of Platform of Excavators arc plate Bending Mould is disclosed, this utility model relates to a kind of Platform of Excavators arc plate Bending Mould, includes upper bolster, patrix, clamping device, counterdie, die shoe, positioner, circular cushion block.It is characterized in that: the upper surface of patrix is welded on upper bolster, the bottom gabarit of patrix is shaped as lower protruding surface of revolution, and its section configuration is consistent with the excavator arc plate curve shape after moulding; The lower surface of counterdie is welded on die shoe, and the center upper portion of counterdie is processed with a recessed surface of revolution, and its section configuration is consistent with the excavator arc plate curve shape after moulding; Upper surface one side of counterdie is welded with positioner, and opposite side is provided with clamping device, and the two ends of clamping device form movable connection with counterdie by bolt; Circular cushion block has four, is welded on the upper surface of counterdie.This utility model can disposable bending and molding, for the bending and molding of excavator arc plate in enormous quantities, saves a large amount of time, has improved precision and the efficiency of excavator arc plate bending and molding.
Above two parts of patent documents can Machining Arc, but cannot process special R based plate recited above, because being all the workpiece that will process what shape, existing Design of Dies theory just prepares the bending machine die of correspondingly-shaped, processing mode for the special R based plate of stating is above first with common bending machine, to roll over a circular arc, and then manually circular arc is shunk, so not only waste time and energy, and due to the internal stress influence of workpiece, after processing, can there is strain, machining accuracy is inadequate, cannot meet user demand, and easily damage is caused in the surface of workpiece during bending.
The bender particular manufacturing craft of being badly in need of now this special R based plate of a kind of energy of design one-shot forming, improves machining accuracy, reduces production costs, and will guarantee the service life of this particular manufacturing craft.
Summary of the invention
1. the technical problem that invention will solve
For cannot the special R based plate of disposable processing and the not high problem of prior art machining accuracy in prior art, the processing method of the special-purpose bending machine die of a kind of special R based plate and parts thereof is provided, this special R based plate of energy disposal molding, machining accuracy is high, to workpiece not damaged, and because this mould is used the parts of a special shape, these parts need higher hardness, and the present invention also provides the processing method of these parts.
2. technical scheme
Object of the present invention is achieved through the following technical solutions.
The special-purpose bending machine die of special R based plate, comprises mold and bed die, wherein:
Described mold is followed successively by mold hold assembly, mold body and mold bottom surface from top to bottom; Described mold bottom surface is comprised of five faces, is followed successively by the first inclined-plane, the second inclined-plane, semicircle arc surface, the second inclined-plane and the first inclined-plane from a side to opposite side, and described the first inclined-plane and the angle on vertical direction are 70 °; The first described inclined-plane and the angle on the second inclined-plane are 105 °; The line of described two end points of semicircle arc surface is parallel with horizontal plane;
Described bed die comprises interior card moving block, briquetting, bolt and bed die body; On described bed die body, middle side part is provided with a downward square groove, and the middle part of the bottom surface of this square groove is provided with a first downward inside groove; The position corresponding with the first inside groove vertical direction, the bottom of described bed die body is provided with a bolt indentation making progress, part between bolt indentation and the first inside groove has bolt hole, and bolt is through being connected with briquetting through after the first inside groove after this bolt hole again; On the first described inside groove and the bolt between briquetting, also cover has spring; The upper surface of described briquetting is horizontal plane, and downside is provided with two steps;
Described interior card moving block has two, lays respectively at the both sides of briquetting in square groove; Described interior card moving block be shaped as down " 7 " shape; Described interior card moving block comprises by horizontal plane, moving block the second medial surface and moving block end face inside moving block the first lateral surface, moving block bottom surface, moving block the first medial surface, moving block and connecting to form successively, between moving block the first lateral surface and moving block bottom surface, by arc transition, the angle between moving block the first lateral surface and moving block bottom surface is 85 °; Angle between moving block bottom surface and moving block the first medial surface is 135 °; Inside moving block, horizontal plane is parallel with moving block bottom surface; Angle inside moving block the second medial surface and moving block between horizontal plane is 70-80 °, and horizontal plane and moving block the second medial surface junction are by arc transition inside moving block, and the radius of this circular arc equals 1/3 of the semicircle arc surface radius of mold; Angle between moving block end face and moving block bottom surface is 20 °.
Preferably, the radius of described moving block the first lateral surface and the transition arc between moving block bottom surface equals 1/2 of the semicircle arc surface radius of mold.
Although the special-purpose bending machine die of this special R based plate can well complete part to be processed, but there is a problem, be exactly that access times are many, interior card moving block is because greatly stressed and comparatively frequent, easily damage, especially adopt the interior card moving block of common material and Technology for Heating Processing processing, using the water caltrop place that just easily occurs moving block the second medial surface and moving block end face intersection in 2000 times to occur fracture, the phenomenons such as wearing and tearing, and there is crackle or the phenomenon directly rupturing in the infall of the infall of moving block the first lateral surface and moving block bottom surface and moving block the first medial surface and moving block the second medial surface.Although equaling 1/3 of the semicircle arc surface radius of mold, the radius of this circular arc of the present invention's design can prevent that certain crackle from occurring, but or will rely on rational material composition and Technology for Heating Processing, so to find a kind of new material and Technology for Heating Processing for interior card moving block.
In in the special-purpose bending machine die of special R based plate, a processing method for card moving block, the steps include:
(1) in, the raw material of card moving block blank are prepared
Interior card moving block blank adopts rough forging to make, and the component of this rough forging and mass percent are: C:0.38-0.43%, Mn:0.72-0.77%, Si:0.35-0.45%, S :≤0.020%, P :≤0.025%, Cr:1.78-1.83%, Mo:0.85～0.95, Sc
2o
3: 0.03-0.05%, surplus are Fe; This composition has adopted high Cr and Mo, and the control of the addition by Mn and Si, reaches the requirement of high rigidity, adds simultaneously and control the Sc of certain content
2o
3, increased the toughness of material, reduced the hardening crack tendency of material;
(2) annealing in process of rough forging:
The annealed stove of rough forging obtaining in step (1) is annealed to it, and its annealing temperature is 810-840 ℃, and annealing time is 3～5 h, is chilled to 540-630 ℃ of laggard line space cold in annealing furnace;
(3) preliminary working of rough forging, is processed into the primary shape of interior card moving block, and each face retains the surplus of 2mm;
(4) heat treatment of card moving block in:
Will be through the interior card moving block of step (3) Vehicle Processing, after being first heated to 540-620 ℃, be incubated 1-2 h, and then be heated to 810-840 ℃ of insulation 20-30 min, then be heated to 870-890 ℃, after insulation 0.5-1h, quench, oil quenching, after cooling, pass through subzero treatment, the temperature of subzero treatment is-195 to-205 ℃ again, keeps 1-2h, then at the temperature of 170-190 ℃, carry out tempering, tempering three times; Material hardness of the present invention is higher, although by content and the Composition Control of element, improved a part of toughness, has reduced embrittlement tendency, still easy hardening crack in the irrational situation of Technology for Heating Processing; So will strictly control the step of heating;
(5) deep processing of card moving block in:
Will be through the heat treated interior card moving block of step (4), further deep processing, the steps include:
A removes surface oxide layer with water under high pressure;
B processes rounding off place;
C on lathe, carries out finish turning by interior card moving block clamping;
Card moving block in D fine grinding;
(6) in, whether qualified the detection of card moving block, detect size and the number of degrees.
Preferably, in described step (1), component and the mass percent of rough forging is: C:0.40%, Mn:0.75%, Si:0.40%, S :≤0.020%, P :≤0.025%, Cr:1.80%, Mo:0.90, Sc
2o
3: 0.04%, surplus is Fe;
Preferably, in the annealing in process of described step (2) rough forging, annealing temperature is 830 ℃, and annealing time is 4h, is chilled to 600 ℃ of laggard line spaces cold in annealing furnace.
Preferably, in in described step (4), the heat treatment of card moving block is to be incubated 1.5 h after being first heated to 600 ℃, and then be heated to 830 ℃ of insulation 25min, then be heated to 880 ℃, after insulation 40min, quench, oil quenching, after cooling, pass through subzero treatment, the temperature of subzero treatment is-200 ℃ again, keeps 1.5h, then at the temperature of 180 ℃, carry out tempering, tempering three times.
Preferably, in described step (4), the hardening media of oil quenching is No. 2 conventional quenching oils.
3. beneficial effect
Compared with prior art, the present invention has following remarkable advantage:
(1) structure of the bottom shape of device of the present invention by special mold and special bed die, can time processing become workpiece to be processed, and precision is high, does not need secondary artificial treatment, and to not damage of surface of the work, easy to operate, cost is low;
(2) the interior card moving block that in the special R based plate special use of the present invention bending machine die, the processing method of card moving block is processed has higher hardness, toughness and wearability, and after processing is used 10,000 times, interior card moving block is still normally used, and the life-span is high;
(3) the present invention is simple in structure, easy to operate, and processing cost is low, long service life, simultaneously due to when the processing work to workpiece not damaged, so the life-span of the workpiece of processing is also long.
Accompanying drawing explanation
Fig. 1 is the structural representation of the workpiece to be processed of device of the present invention;
Fig. 2 is the structural representation of apparatus of the present invention mold;
Fig. 3 is the structural representation of apparatus of the present invention bed die;
Fig. 4 is the structural representation of card moving block in the present invention;
Fig. 5 is the structural representation of the duty of the device in the present invention.
In figure: 1, mold hold assembly; 2, mold body; 3, mold bottom surface; 31, the first inclined-plane; 32, the second inclined-plane; 4, interior card moving block; 41, moving block the first lateral surface; 42, moving block bottom surface; 43, moving block the first medial surface; 44, moving block the second medial surface; 45, moving block end face; 5, briquetting; 6, the first inside groove; 7, bolt; 8, bolt indentation; 9, bed die body.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described further.
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the special-purpose bending machine die of a kind of special R based plate, comprises mold and bed die, wherein:
Mold is followed successively by mold hold assembly 1, mold body 2 and mold bottom surface 3 from top to bottom; Mold bottom surface 3 is comprised of five faces, and from a side to opposite side, being followed successively by the first inclined-plane 31, the second inclined-plane 32, semicircle arc surface, the second inclined- plane 32 and 31, the first inclined-planes 31, the first inclined-plane is 70 ° with the angle on vertical direction; The angle on the first inclined-plane 31 and the second inclined-plane 32 is 105 °; The line of two end points of semicircle arc surface is parallel with horizontal plane; As shown in Figure 2.
Bed die comprises interior card moving block 4, briquetting 5, bolt 7 and bed die body 9, and structure as shown in Figure 3; On bed die body 9, middle side part is provided with a downward square groove, and the middle part of the bottom surface of this square groove is provided with a first downward inside groove 6; The position corresponding with the first inside groove 6 vertical directions, the bottom of bed die body 9 is provided with a bolt indentation making progress 8, part between bolt indentation 8 and the first inside groove 6 has bolt hole, and bolt 7 is connected with briquetting 5 after passing the first inside groove 6 after this bolt hole again; On bolt between the first inside groove 6 and briquetting 5, also cover has spring; The upper surface of briquetting 5 is horizontal plane, and downside is provided with two steps;
Interior card moving block 4 has two, lays respectively at the both sides of briquetting 5 in square groove; Interior card moving block 4 be shaped as down " 7 " shape, as shown in Figure 4; Interior card moving block 4 comprises by horizontal plane, moving block the second medial surface 44 and moving block end face 45 inside moving block the first lateral surface 41, moving block bottom surface 42, moving block the first medial surface 43, moving block and connecting to form successively, between moving block the first lateral surface 41 and moving block bottom surface 42, by arc transition, the angle between moving block the first lateral surface 41 and moving block bottom surface 42 is 85 °; Angle between moving block bottom surface 42 and moving block the first medial surface 43 is 135 °; Inside moving block, horizontal plane is parallel with moving block bottom surface 42; Angle inside moving block the second medial surface 44 and moving block between horizontal plane is 83 °, and horizontal plane and moving block the second medial surface 44 junctions are by arc transition inside moving block, and the radius of this circular arc equals 1/3 of the semicircle arc surface radius of mold; Angle between moving block end face 45 and moving block bottom surface 42 is 20 °.The radius of the transition arc between moving block the first lateral surface 41 and moving block bottom surface 42 equals 1/2 of the semicircle arc surface radius of mold.
The processing method of this device, is first to forge, and then is finish-machined to the shape of all parts, finally assembling.Wherein, because interior card moving block 4 needs higher hardness, toughness and wearability, need specially treated.
In in the present invention, the processing method of card moving block, the steps include:
(1) in, the raw material of card moving block blank are prepared
Interior card moving block blank adopts rough forging to make, and the component of this rough forging and mass percent are: C:0.40%, Mn:0.75%, Si:0.40%, S :≤0.020%, P :≤0.025%, Cr:1.80%, Mo:0.90, Sc
2o
3: 0.04%, surplus is Fe;
(2) annealing in process of rough forging:
The annealed stove of rough forging obtaining in step (1) is annealed to it, and its annealing temperature is 830 ℃, and annealing time is 4 h, is chilled to 600 ℃ of laggard line spaces cold in annealing furnace;
(3) preliminary working of rough forging, is processed into the primary shape of interior card moving block, and each face retains the surplus of 2mm;
(4) heat treatment of card moving block in:
Will be through the interior card moving block of step (3) Vehicle Processing, after being first heated to 600 ℃, be incubated 1.5 h, and then be heated to 830 ℃ of insulation 25 min, then be heated to 880 ℃, after insulation 40min, quench, oil quenching, hardening media is No. 2 conventional quenching oils, passes through subzero treatment after cooling again, the temperature of subzero treatment is-200 ℃, keep 1.5h, then at the temperature of 180 ℃, carry out tempering, tempering three times;
(5) deep processing of card moving block in:
Will be through the heat treated interior card moving block of step (4), further deep processing, the steps include:
A removes surface oxide layer with water under high pressure;
B processes rounding off place;
C on lathe, carries out finish turning by interior card moving block clamping;
Card moving block in D fine grinding;
(6) in, whether qualified the detection of card moving block, detect size and the number of degrees.The hardness of the interior card moving block obtaining is HRC59, through magnetic powder inspection flawless.
The using method of apparatus of the present invention is: the top that sheet material is placed on to bed die, by mold bottom surface 3, be pressed between interior card moving block 4, mold continues to move downward, when being pressed onto in square groove briquetting 5 place, briquetting 5 declines, briquetting 5 is being pressed the intersection angle position of horizontal plane inside moving block the first medial surface 43 and moving block, all inwardly rotations of the upper end of card moving block 4 in driving, until after extruding desired shape, standing 10 min, can rise mold, as shown in Figure 1, briquetting 5 resets the workpiece of processing under the effect of spring; Simultaneously, card moving block 4 also can easily reset.The workpiece accuracy of processing is high, and to not damage of surface of the work, after processing is used 10,000 2 thousand times, interior card moving block is still normally used, and the life-span is high.
With embodiment 1, difference be in processed device inside moving block the second medial surface 44 and moving block the angle between horizontal plane be 70 °.In the processing method of interior card moving block, in step (1), component and the mass percent of rough forging are: C:0.38%, Mn:0.77%, Si:0.35%, S :≤0.020%, P :≤0.025%, Cr:1.78%, Mo:0.85%, Sc
2o
3: 0.05%, surplus is Fe; In step (2), its annealing temperature is 810 ℃, and annealing time is 5 h, is chilled to 540 ℃ of laggard line spaces cold in annealing furnace; After being first heated to 620 ℃ in step (4), be incubated 1 h, and then be heated to 810 ℃ of insulation 30 min, then be heated to 870 ℃, after insulation 1h, quench, the temperature of subzero treatment is-195 ℃, keeps 2h, then at the temperature of 190 ℃, carries out tempering.The hardness of the interior card moving block obtaining is HRC58, through magnetic powder inspection flawless.In after processing is used 10,000 1 thousand times, card moving block is still normally used.
With embodiment 1, difference be in processed device inside moving block the second medial surface 44 and moving block the angle between horizontal plane be 80 °.In the processing method of interior card moving block, in step (1), component and the mass percent of rough forging are: C:0.43%, Mn:0.72%, Si:0.45%, S :≤0.020%, P :≤0.025%, Cr:1.83%, Mo:0.95%, Sc
2o
3: 0.03%, surplus is Fe; In step (2), its annealing temperature is 840 ℃, and annealing time is 3 h, is chilled to 630 ℃ of laggard line spaces cold in annealing furnace; After being first heated to 540 ℃ in step (4), be incubated 2 h, and then be heated to 840 ℃ of insulation 20 min, then be heated to 890 ℃, after insulation 0.5h, quench, the temperature of subzero treatment is-205 ℃, keeps 1h, then at the temperature of 170 ℃, carries out tempering.The hardness of the interior card moving block obtaining is HRC58, through magnetic powder inspection flawless.In after processing is used 10,000 1 thousand times, card moving block is still normally used.
Claims (7)
1. the special-purpose bending machine die of special R based plate, comprises mold and bed die, it is characterized in that:
Described mold is followed successively by mold hold assembly (1), mold body (2) and mold bottom surface (3) from top to bottom; Described mold bottom surface (3) is comprised of five faces, from a side to opposite side, be followed successively by the first inclined-plane (31), the second inclined-plane (32), semicircle arc surface, the second inclined-plane (32) and the first inclined-plane (31), described the first inclined-plane (31) is 70 ° with the angle on vertical direction; Described the first inclined-plane (31) and the angle of the second inclined-plane (32) are 105 °; The line of described two end points of semicircle arc surface is parallel with horizontal plane;
Described bed die comprises interior card moving block (4), briquetting (5), bolt (7) and bed die body (9); The upper middle side part of described bed die body (9) is provided with a downward square groove, and the middle part of the bottom surface of this square groove is provided with downward first inside groove (6); The position corresponding with the first inside groove (6) vertical direction, the bottom of described bed die body (9) is provided with a bolt indentation making progress (8), part between bolt indentation (8) and the first inside groove (6) has bolt hole, and bolt (7) is through being connected with briquetting (5) through after the first inside groove (6) after this bolt hole again; On described the first inside groove (6) and the bolt between briquetting (5), also cover has spring; The upper surface of described briquetting (5) is horizontal plane, and downside is provided with two steps;
Described interior card moving block (4) has two, lays respectively at the both sides of briquetting in square groove (5); Described interior card moving block (4) be shaped as down " 7 " shape; Described interior card moving block (4) comprises by horizontal plane, moving block the second medial surface (44) and moving block end face (45) inside moving block the first lateral surface (41), moving block bottom surface (42), moving block the first medial surface (43), moving block and connecting to form successively, between moving block the first lateral surface (41) and moving block bottom surface (42), by arc transition, the angle between moving block the first lateral surface (41) and moving block bottom surface (42) is 85 °; Angle between moving block bottom surface (42) and moving block the first medial surface (43) is 135 °; Inside moving block, horizontal plane is parallel with moving block bottom surface (42); Angle inside moving block the second medial surface (44) and moving block between horizontal plane is 70-80 °, inside moving block, horizontal plane and moving block the second medial surface (44) junction are by arc transition, and the radius of this circular arc equals 1/3 of the semicircle arc surface radius of mold; Angle between moving block end face (45) and moving block bottom surface (42) is 20 °.
2. the special-purpose bending machine die of a kind of special R based plate according to claim 1, it is characterized in that, described moving block the first lateral surface (41) and the radius of the transition arc between moving block bottom surface (42) equal 1/2 of the semicircle arc surface radius of mold.
3. in the special-purpose bending machine die of special R based plate, a processing method for card moving block, the steps include:
(1) in, the raw material of card moving block blank are prepared
Interior card moving block blank adopts rough forging to make, and the component of this rough forging and mass percent are: C:0.38-0.43%, Mn:0.72-0.77%, Si:0.35-0.45%, S :≤0.020%, P :≤0.025%, Cr:1.78-1.83%, Mo:0.85～0.95, Sc
2o
3: 0.03-0.05%, surplus are Fe;
(2) annealing in process of rough forging:
The annealed stove of rough forging obtaining in step (1) is annealed to it, and its annealing temperature is 810-840 ℃, and annealing time is 3～5 h, is chilled to 540-630 ℃ of laggard line space cold in annealing furnace;
(3) preliminary working of rough forging, is processed into the primary shape of interior card moving block, and each face retains the surplus of 2mm;
(4) heat treatment of card moving block in:
Will be through the interior card moving block of step (3) Vehicle Processing, after being first heated to 540-620 ℃, be incubated 1-2 h, and then be heated to 810-840 ℃ of insulation 20-30 min, then be heated to 870-890 ℃, after insulation 0.5-1h, quench, oil quenching, after cooling, pass through subzero treatment, the temperature of subzero treatment is-195 to-205 ℃ again, keeps 1-2h, then at the temperature of 170-190 ℃, carry out tempering, tempering three times;
(5) deep processing of card moving block in:
Will be through the heat treated interior card moving block of step (4), further deep processing, the steps include:
A removes surface oxide layer with water under high pressure;
B processes rounding off place;
C on lathe, carries out finish turning by interior card moving block clamping;
Card moving block in D fine grinding;
(6) in, whether qualified the detection of card moving block, detect size and the number of degrees.
4. the processing method of card moving block in the special-purpose bending machine die of a kind of special R based plate according to claim 3, it is characterized in that, in described step (1), component and the mass percent of rough forging are: C:0.40%, Mn:0.75%, Si:0.40%, S :≤0.020%, P :≤0.025%, Cr:1.80%, Mo:0.90, Sc
2o
3: 0.04%, surplus is Fe.
5. the processing method of card moving block in the special-purpose bending machine die of a kind of special R based plate according to claim 3, it is characterized in that, in the annealing in process of described step (2) rough forging, annealing temperature is 830 ℃, and annealing time is 4h, is chilled to 600 ℃ of laggard line spaces cold in annealing furnace.
6. the processing method of card moving block in the special-purpose bending machine die of a kind of special R based plate according to claim 3, it is characterized in that, in described step (4), the heat treatment of interior card moving block is to be incubated 1.5 h after being first heated to 600 ℃, and then is heated to 830 ℃ of insulation 25min, be heated to again 880 ℃, insulation is quenched after 40min, and oil quenching passes through subzero treatment after cooling again, the temperature of subzero treatment is-200 ℃, keep 1.5h, then at the temperature of 180 ℃, carry out tempering, tempering three times.
7. according to the special-purpose bending machine die of a kind of special R based plate described in any one in claim 3-6, it is characterized in that, in described step (4), the hardening media of oil quenching is No. 2 conventional quenching oils.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510324700.0A CN104858316B (en) | 2013-12-12 | 2013-12-12 | The processing method of card moving block in a kind of special special bending machine die of R based plates |
| CN201310673126.0A CN103691813B (en) | 2013-12-12 | 2013-12-12 | The special bending machine die of a kind of special R based plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310673126.0A CN103691813B (en) | 2013-12-12 | 2013-12-12 | The special bending machine die of a kind of special R based plate |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510324700.0A Division CN104858316B (en) | 2013-12-12 | 2013-12-12 | The processing method of card moving block in a kind of special special bending machine die of R based plates |
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| Publication Number | Publication Date |
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| CN103691813A true CN103691813A (en) | 2014-04-02 |
| CN103691813B CN103691813B (en) | 2015-12-02 |
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| CN201310673126.0A Active CN103691813B (en) | 2013-12-12 | 2013-12-12 | The special bending machine die of a kind of special R based plate |
| CN201510324700.0A Active CN104858316B (en) | 2013-12-12 | 2013-12-12 | The processing method of card moving block in a kind of special special bending machine die of R based plates |
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Cited By (7)
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| CN104741423A (en) * | 2015-04-03 | 2015-07-01 | 苏州博众精工科技有限公司 | Bending and forming device |
| CN105057464A (en) * | 2014-04-08 | 2015-11-18 | 安徽新源精密模具有限公司 | Method for machining middle die body of bending machine die for round workpieces |
| CN105234295A (en) * | 2015-11-23 | 2016-01-13 | 安徽长江机床制造（集团）有限公司 | Lower die base of conical lamp pole bending machine and machining method of lower die base |
| CN105855407A (en) * | 2016-03-31 | 2016-08-17 | 苏州三维精密机械有限公司 | Machining process for reinforced punch with guide thick plates and narrow grooves |
| CN106391874A (en) * | 2015-11-16 | 2017-02-15 | 安徽省凌锋冶金机械有限公司 | Floor heating pipeline groove forming method |
| CN106607504A (en) * | 2016-12-29 | 2017-05-03 | 马鞍山万普实业发展有限公司 | Machining device for R-shaped workpiece |
| CN109013763A (en) * | 2018-08-02 | 2018-12-18 | 安徽南海机械有限公司 | A kind of water-drop-shaped bending machine die |
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| CN112845758B (en) * | 2020-11-25 | 2022-10-28 | 乐清市荣泰电器厂 | Press machine for producing vortex type connecting sheet |
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Also Published As
| Publication number | Publication date |
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| CN104858316A (en) | 2015-08-26 |
| CN104858316B (en) | 2017-10-24 |
| CN103691813B (en) | 2015-12-02 |
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