CN107716725B - Punching press lower die - Google Patents
Punching press lower die Download PDFInfo
- Publication number
- CN107716725B CN107716725B CN201711210654.7A CN201711210654A CN107716725B CN 107716725 B CN107716725 B CN 107716725B CN 201711210654 A CN201711210654 A CN 201711210654A CN 107716725 B CN107716725 B CN 107716725B
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- China
- Prior art keywords
- shaped hole
- punching press
- spacer
- lower die
- mold
- Prior art date
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Classifications
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/08—Dies with different parts for several steps in a process
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
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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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/06—Stripping-off devices
- B21D45/08—Stripping-off devices interrelated with motion of tool
Abstract
The component shaping method that the present invention provides the high punching press lower die of durability compared with the past and the durability of punching press lower die can be made to improve.In punching press lower die (50) of the invention, the distal opening (13D) that the first lubricant supplies road (13) is offered by inboard part in the ratio thinning part (42) of shaped hole (40), therefore, to the side coating lubricant (L) for having passed through the workpiece (W) after thinning part (42).
Description
Technical field
The present invention relates to have for by workpiece drawing and forming or be thinned forming shaped hole punching press lower die.
Background technique
In the past, as this punching press lower die, it is known to workpiece coating lubricant to improve durability in shaped hole
Punching press lower die (referring for example to patent document 1).
Citation
Patent document 1: Japanese Unexamined Patent Publication 56-028733 bulletin (Fig. 1)
However, seeking further increasing for the durability of punching press lower die relative to above-mentioned existing punching press lower die.Especially
In the case where progress " be thinned forming ", abrasion there is a situation where therefore, seek strongly resistance to than carrying out " drawing and forming " earlier
The raising of long property.
Summary of the invention
The present invention completes in view of the foregoing, it is intended that providing, a kind of durability compared with the past is high to be rushed
Depress mould.
The punching press lower die of the invention completed to achieve the goals above has shaped hole, makes work in the shaped hole
Part is mobile to a direction and carries out drawing and forming to the workpiece or forming is thinned, then make the workpiece mobile to other direction and from
The shaped hole discharge, which is characterized in that the punching press lower die has: lubricant supplies road, will be from feeding lubricating device
The lubricant of ejection is guided into the shaped hole；And first end opening, it is set to the lubricant and supplies road, and
The most narrow minimum necking part of ratio in the medial surface of the shaped hole is supplied by inboard outs open into the forming
Lubricant.
Detailed description of the invention
Fig. 1 is the side sectional view of the press-forming machine of first embodiment of the invention.
Fig. 2 is the amplification side sectional view of punching press lower die.
Fig. 3 is the perspective view of the first spacer.
Fig. 4 is the overhead sectional view of punching press lower die.
Fig. 5 is the amplification side sectional view of the punching press lower die in the state of being pressed into workpiece.
Fig. 6 is the amplification side sectional view of the punching press lower die centered on drawing portion.
Fig. 7 is the amplification side sectional view of the punching press lower die centered on thinning part.
Fig. 8 is the amplification side sectional view of the punching press lower die centered on the thinning part of second embodiment.
Fig. 9 is the amplification side sectional view of the punching press lower die centered on the thinning part of third embodiment.
Description of symbols:
10 press machines；
11 first hole inner annular slots；
12 second hole inner annular slots；
13 first lubricants supply road (lubricant supply road)；
13A imports road；
The first more intermediate annular of 13B road；
13C discharge path；
13D first end opening；
14D second end opening；
14 second lubricants supply road (lubricant supply road)；
30,30V, 30W mold；
31 cupping tools (die main body)；
The upper tapering 31A；
31B middle circle canister portion；
32 second spacers；
The second outside 32D tapering；
33 thinned molds (die main body)；
33C hypocone (tapering)；
34, the first spacer of 34V, 34W (spacer)；
The upper tapering 34A (tapering)；
The first outside 34D tapering (outer rim cutout unit)；
40 shaped holes；
41 drawing portions；
42 thinning parts；
50 punching press lower dies；
51 mold bases；
52 mold reception holes；
61 formed punches；
70 stripper pins；
72 lubricant discharge paths；
90 feeding lubricating devices；
L lubricating oil；
W workpiece.
Specific embodiment
[first embodiment]
Hereinafter, being illustrated based on FIG. 1 to FIG. 7 to one embodiment of the present invention.Fig. 1 is shown with punching press of the invention
The press machine 10 of lower die 50.The press machine 10 is so-called " Multi-station punching machine ", is had in the direction orthogonal with the paper of Fig. 1
It is side by side multiple processing with formed punch 61 and shaped hole 40 of a column on (hereinafter, the direction is referred to as " workpiece handling direction ")
Platform.
Punching press lower die 50 includes: multiple molds 30 with shaped hole 40；Keep the mold base 51 of these molds 30；And
The stripper pin 70 being described in detail later.In addition, being equipped with well known multistation dress (not shown) in the upper surface of punching press lower die 50
It sets.It should be noted that multiple formed punches 61 are installed on the lower surface of pressure head (not shown) and constitute the punching press upper mold of press machine 10.
Workpiece W to strike out the machine table that disk-shaped state is supplied to the one end in workpiece handling direction from metal plate,
Drawing and forming is one end cylindrical shape with the end in the machine table.Then, the workpiece W of the cylindrical shape is successively removed by multistation device
It is transported to adjacent machine table and implements further drawing and forming or forming is thinned, to be configured to elongated cylindrical shape.Fig. 1 shows
Out in these multiple machine tables, make workpiece W become elongated cylindric terminal stage a machine table press machine 10
Side sectional view.It should be noted that drawing residual part is formed as the flange of cone cell in the upper end of workpiece W, which is being rushed
It is removed in the rear process of press 10.
Hereinafter, the construction that press machine 10 is described in detail based on the machine table shown in FIG. 1.Mold base 51 includes: solid
Due to the retainer pedestal 53 of the upper surface of the scaffold 55 of press machine 10；And it is fixed on the multiple of the retainer pedestal 53
Keep frame body 54.In retainer pedestal 53, have according to each machine table along the direction extension orthogonal with workpiece handling direction
Chamfered groove 53A, keep frame body 54 be embedded in these each chamfered groove 53A.
It is embedded in keeping frame body 54 to be formed with vertically perforative circular mold reception hole 52, columned mold 30
The mold reception hole 52.In addition, mold reception hole 52 and mold 30 become upper section portion with the shape of step-like undergauge.And
And mold 30 is chimeric with mold reception hole 52 from below, keeps the upper surface and lower surface of frame body 54 and the upper table of mold 30
Face and lower surface become substantially coplanar.
Shaped hole 40 vertically runs through mold 30 and retainer pedestal 53 in the central part of mold 30.In addition, supporting
Elongated pore 55C is formed with perforative state on the extended line of shaped hole 40 in frame 55.The upper end of elongated pore 55C is formed
The diameter pin guide portion 55A more slightly smaller than shaped hole 40, upper end become the diameter bar guide portion bigger than pin guide portion 55A in addition
55B.Moreover, being accommodated in bar guidance from the direct acting bar 73 that the straight-moving mechanism (not shown) for the lower section for being provided to scaffold 55 extends
In portion 55B.
Straight-moving mechanism guides direct acting bar 73 in bar for example using spring as driving source
It is vertically moved in portion 55B.Stripper pin 70 is placed on the direct acting bar 73.Stripper pin 70 is formed to be stretched out from the lower end of pole
The construction of flange 70F.In addition, by the range of the position by upper end to position on lower side of stripper pin 70 to its outside
The a part in face carries out plane lapping and forms backoff portion 71, and backoff portion 74 same as the backoff portion 71 is formed in from direct acting bar
In the range of 73 upper end to the middle position of up and down direction.Moreover, between backoff portion 71 and the medial surface for selling guide portion 55A
Gap and backoff portion 74 and the medial surface of bar guide portion 55B between gap become lubricant discharge path 72.
It should be noted that as shown in Figure 1, the upper end of stripper pin 70 is than bearing when direct acting bar 73 is located at bottom dead centre
Frame 55 is prominent slightly towards top and becomes the state for protruding into shaped hole 40.In addition, the upper and lower end of backoff portion 71 and
The lower end of backoff portion 74 is formed with curved surface corresponding with the radius of turn of cutting element.
Stacked base pads the 35, first spacer 34, mold is thinned the mold 30 of machine table shown in FIG. 1 upward under
33, the second spacer 32 and cupping tool 31 form.It should be noted that cupping tool 31 and thinned mold 33 are equivalent to
" die main body " of the invention, such as be made of superhard material, the constituting portion of the molds 30 such as the first spacer 34 in addition to this
Part is made of superhard material or tool steel.In addition, the formed punch 61 for being provided to the machine table of Fig. 1 is cylindrical, outside lower end surface
Edge is carried out so-called rounded corner.
As shown in Fig. 2, the medial surface of the shaped hole 40 of cupping tool 31 is followed successively by upper tapering 31A, middle circle from upside
Canister portion 31B, hypocone 31C.Undergauge, middle circle canister portion 31B form the lower end phase with upper tapering 31A to upper tapering 31A downward
With homogeneous diameter and extended with regular length, hypocone 31C is from the lower end of intermediate cylindrical portion 31B with very small cone angle direction
Lower section is expanding.Moreover, the part of middle circle canister portion 31B formed in cupping tool 31 becomes drawing portion 41 of the invention.
Be thinned mold 33 shaped hole 40 medial surface be followed successively by from upside upper tapering 33A, middle circle canister portion 33B, under
Tapering 33C.Upper tapering 33A is with the upper tapering 31A than cupping tool 31 small cone angle undergauge downward, tapering 33A on this
The internal diameter of upper end is more slightly larger than the internal diameter of the lower end of the hypocone 31C of cupping tool 31.On the other hand, the lower end of upper tapering 33A
Internal diameter is smaller than the internal diameter of the middle circle canister portion 31B of cupping tool 31.In addition, under middle circle canister portion 33B formation and upper tapering 33A
It holds identical homogeneous diameter and is extended with regular length, hypocone 33C is from the lower end of intermediate cylindrical portion 33B with very small cone angle
It is expanding downward.Moreover, the part of middle circle canister portion 33B formed in mold 33, which is thinned, becomes thinning part of the invention
42, the internal diameter of the thinning part 42 is minimum in shaped hole 40.That is, thinning part 42 becomes " minimum necking part " of the invention.
It should be noted that cone angle of the cone angle of the hypocone 33C of thinned mold 33 than the hypocone 31C of cupping tool 31
It is slightly larger.In addition, the configuration of thinning part 42, in the top position being thinned in mold 33, drawing portion 41 configures in cupping tool 31
Position on the lower, in addition, the axial length of thinning part 42 is shorter than the axial length in drawing portion 41.
The upper end of the medial surface of the shaped hole 40 of first spacer 34 becomes upper tapering 34A, becomes equal other than upper end
The cylindrical portion 34B of even diameter.The internal diameter of cylindrical portion 34B is more slightly larger than the internal diameter of thinning part 42, and upper tapering 34A is from cylindrical portion 34B
Upper end it is expanding upward.In addition, the internal diameter of the upper end of upper tapering 34A is with the hypocone 33C's in thinned mold 33
The internal diameter of lower end is roughly the same.Moreover, the upper tapering 34A of the first spacer 34 and the hypocone 33C of thinned mold 33 become
" a pair of of tapering " of the invention constitutes the first hole inner annular slot 11 as " hole inner annular slot " of the invention.
It should be noted that in the present embodiment, the internal diameter of the cylindrical portion 34B of the first spacer 34 is greater than thinning part 42
Internal diameter, as a result, as shown in fig. 7, the workpiece W for having passed through thinning part 42 side and the first spacer 34 cylindrical portion 34B
Between formed gap C1.Gap C1 is preferably set to the size for the degree for passing through aftermentioned lubricating oil L.
As shown in Fig. 2, the outer edge entirety for intersecting lateral surface with upper surface is in the first spacer 34 with for example substantially
45 degree of chamferings form the first outside tapering 34D for being equivalent to " outer rim cutout unit " of the invention.In addition, in the up-down direction
First outside tapering 34D is bigger than upper tapering 34A, and the lower end of the first outside tapering 34D is above and below the first spacer 34
The substantial middle in direction.Moreover, by the first outside tapering 34D, mold reception hole 52 medial surface and thinned mold 33 under
The part that surface periphery portion surrounds becomes the first more intermediate annular road 13B for being equivalent to " more intermediate annular road " of the invention.
As shown in figure 3, being radially formed with of the invention multiple (such as four in the upper surface of the first spacer 34
It is a) discharge path 13C.Each discharge path 13C is for example in section arc-shaped, the both ends of these each discharge path 13C are in the first outside cone
Portion 34D and upper tapering 34A opening.It is opened moreover, the opening of the discharge path 13C in upper tapering 34A becomes first end of the invention
Mouth 13D.
As shown in Fig. 2, the medial surface of the shaped hole 40 of the second spacer 32 integrally becomes the barrel surface of uniform bore diameter, this is interior
Diameter is in the lower end for the shaped hole 40 for being greater than cupping tool 31 step-likely and the upper end of the shaped hole 40 of thinned mold 33.And
And based on the medial surface of the second spacer 32, by the hypocone 31C of the medial surface of the second spacer 32, cupping tool 31 with
And the upper tapering 33A of thinned mold 33 is formed with the second hole inner annular slot 12 between drawing portion 41 and thinning part 42.
It is also formed with outside second with the first outside tapering 34D same shape of the first spacer 34 in the second spacer 32
Side tapering 32D.Moreover, outside by the second outside tapering 32D, the medial surface of mold reception hole 52 and the lower surface of cupping tool 31
The part that edge surrounds becomes the second more intermediate annular road 14B.In addition, being also isolated with first in the upper surface of the second spacer 32
The discharge path 13C of object 34 is similarly radially formed with multiple (such as four) discharge path 14C of section arc-shaped.And
And the opening of discharge path 14C becomes second end opening 14D.It should be noted that discharge path 14C is than the first spacer 34
Discharge path 13C is deep.
The medial surface of the shaped hole 40 of basal cushions 35 integrally becomes the uniform bore diameter roughly the same with the second spacer 32
Cylindrical shape.In addition, basal cushions 35 are thicker than the component parts of other molds 30.
As shown in figure 4, in retainer pedestal 53 and frame body 54 is kept to be formed with from the front side outer surface for keeping frame body 54
(one end in the direction orthogonal with workpiece handling direction, the left side in Fig. 4) extends to the importing of the first more intermediate annular road 13B
Road 13A.It imports road 13A for example to extend as the crow flies along level, configuration is offseting by the first intermediate ring from the center of shaped hole 40
Substantially 1/4 or so position of the diameter of first class 13B and connect with the first more intermediate annular road 13B.Moreover, by importing road 13A,
First more intermediate annular road 13B and discharge path 13C constitutes the first lubricant confession for being equivalent to " lubricant supply road " of the invention
To road 13.In addition, the opening on the first lubricant supply road 13 for keeping the front side outer surface of frame body 54, via for example not shown
Hose coupling and be connected with the one end of hose 13E, the other end of hose 13E is via flow rate regulating valve 91A and lubrication
Agent feeding device 90 connects.Moreover, the lubricating oil L as lubricant being discharged from feeding lubricating device 90 is by flow rate regulating valve
Supply to the first lubricant supplies road 13 after 91A adjusts flow, is discharged from first end opening 13D into shaped hole 40.
As shown in Fig. 2, the importing road on the first lubricant supply road 13 in retainer pedestal 53 and holding frame body 54
The top of 13A is identically formed with the importing road 14A being connected to the second more intermediate annular road 14B with importing road 13A.Moreover, by
Importing road 14A, the second more intermediate annular road 14B and discharge path 14C composition are equivalent to " lubricant supply road " of the invention
Second lubricant supplies road 14.In addition, as shown in Figure 1, supplying road in the second lubricant for keeping the front side outer surface of frame body 54
14 opening is also connected with the one end of hose 14E via hose coupling, and the other end gold of hose 14E is via flow tune
Whole valve 91B is connect with feeding lubricating device 90.Moreover, being adjusted from the lubricating oil L that feeding lubricating device 90 is discharged by flow
Supply to the second lubricant supplies road 14 after valve 91B adjusts flow, is discharged from second end opening 14D into shaped hole 40.
It is explanation relevant to the structure of press machine 10 of present embodiment above.Then, to the effect of the press machine 10
Effect is illustrated.When starting press machine 10, initial lubrication agent feeding device is after 90s, to the first profit of machine table shown in FIG. 1
Lubrication prescription supply road 13 and the second lubricant supply road 14 convey a certain amount of lubricating oil L.Moreover, supplying road from the first lubricant
13 and second lubricant supply road 14 end first end opening 13D, second end opening 14D outflow lubricating oil L
As along the first hole inner annular slot 11 and the second hole inner annular slot 12 shaped hole 40 the circumferential shape spread on the whole
State.
In addition, workpiece W is successively carried out drawing and forming by multiple machine tables or is thinned to shape when press machine 10 works
For elongated cylindrical shape, the top of the shaped hole 40 in machine table shown in FIG. 1 is carried to by multistation device.At this point, demoulding
Pin 70 is located at top dead-centre.Then, formed punch 61 fall and between stripper pin 70 clamping workpiece W bottom wall, workpiece W is pulled in into
(referring to Fig. 5) in shape hole 40.
Specifically, reach shaped hole 40 drawing portion 41 before workpiece W inner surface and formed punch 61 outer surface it
Between be formed with gap.Then, workpiece W carries out drawing and forming by drawing portion 41, between reducing between workpiece W and formed punch 61
The mode of gap is by undergauge.At this point, being attached with the shaped hole 40 of the machine table before the machine table of Fig. 1 in the outer surface of workpiece W
The lubricating oil L being inside coated.In addition, when formed punch 61 is moved to top dead-centre, the first hole inner annular slot 11 and the second hole inner ring
The lubricating oil L of shape slot 12 is attached to drawing portion 41 and the upper tapering 31A above it.Workpiece W is swimmingly slided with drawing portion 41 as a result,
It moves contact and carries out drawing and forming.
As shown in fig. 6, workpiece W is by reaching the inboard thinning part 42 in drawing portion 41 after drawing portion 41.Here, such as Fig. 7
Shown, the gap C2 ratio between the inner surface of thinning part 42 and the outer surface of formed punch 61 is pressed into the workpiece W before thinning part 42
Wall thickness t1 it is small.As a result, after workpiece W by thinning part 42 carries out that forming is thinned, the wall of workpiece W is thinning.In addition,
Before workpiece W will reach thinning part 42, lubricating oil L is fully fed to the side of workpiece W from the second hole inner annular slot 12, because
This, workpiece W and the swimmingly sliding contact of thinning part 42.Then, as shown in Figure 1, formed punch 61 and stripper pin 70 are dead under arrival
It is begun to ramp up after point, workpiece W is discharged from shaped hole 40, join workpiece W, in turn, formed punch to multistation device (not shown)
61 rise and are detached from from workpiece W.
However, in forming is thinned, workpiece W is strongly pressed into the inner surface of shaped hole 40 compared with drawing and forming,
Correspondingly, it is wiped from the outer surface of workpiece W and has taken more lubricating oil L (or being thinned).Therefore, the workpiece after forming
When W rises in shaped hole 40 (following to be suitably referred to as " when workpiece is discharged "), in the construction of previous punching press lower die, thinning part
The deficiency of lubricating oil between 42 and workpiece W is likely to become problem.
In contrast, in the punching press lower die 50 of present embodiment, as shown in figure 5, the ratio thinning part in shaped hole 40
42 offer first end opening 13D by inboard part, and therefore, lubricating oil L is coated on through the workpiece W's after thinning part 42
Side.Lubricant starvation when workpiece discharge is reliably eliminated as a result,.In addition, the lubrication being discharged from first end opening 13D
Oily L as previously described along the first hole inner annular slot 11 the circumferential diffusion on the whole of shaped hole 40 therefore can be in workpiece W
Lateral surface complete cycle stably coat lubricating oil L.Moreover, because the first hole inner annular slot 11 is by a pair of of tapering (under specifically
Tapering 33C and upper tapering 34A) it constitutes, therefore, by the gap to narrow gradually between workpiece W and tapering come drawing lube oil L,
Lubricating oil L is set to be securely attached to the outer surface of workpiece W.When workpiece is discharged, workpiece W is swimmingly slided with thinning part 42 as a result,
Contact, the durability compared with the past that can be improved press machine 10.
In addition, the part when formed punch 61 in workpiece W reaches bottom dead centre between drawing portion 41 and thinning part 42 is in work
Part be discharged when may with the strongly sliding contact of drawing portion 41, but due in the drawing portion 41 nearby by the second hole inner annular slot
12 fully coating lubricant L, therefore being capable of swimmingly sliding contact.
That is, first end opening 13D, second end opening 14D configuration are being drawn in the punching press lower die 50 of present embodiment
By inboard this two side of part between deep 41 and thinning part 42 and than thinning part 42, therefore, in the whole model of shaped hole 40
In enclosing, lubricating oil L is applied to workpiece W, and sliding property improves, and durability also improves.In addition, the lubricating oil being contaminated passes through figure
External discharge of the lubricant discharge path 72 shown in 1 to shaped hole 40, therefore, can keep the sliding in shaped hole 40 well
Performance.
It should be noted that if as the punching press lower die 50 of present embodiment, by the first lubricant supply road 13 and
The a part (that is, discharge path 13C, 14C) on the second lubricant supply road 14 is configured at the mutual coincidence of component parts of mold 30
Face is then able to easily form a part on the first lubricant supply road 13 and the second lubricant supply road 14.By adjusting
Form these first lubricants supply road 13 and the second lubricant supply road 14 a part the first spacer 32 and
The thickness of second spacer 34 also can easily be done the position adjustment of cupping tool 31 and thinned mold 33.In addition, by
In lubricant L from multiple discharge paths 13C, 14C being radially configured at around shaped hole 40 to the first hole inner annular slot
13 and second hole inner annular slot 14 supply, therefore, steadily integrally can supply lubricant L to the lateral surface of workpiece W.
[second embodiment]
As shown in figure 8, the first spacer 34V that the mold 30V of the punching press lower die 50 of present embodiment has becomes not
The construction of upper tapering 34A with the first embodiment.Moreover, the isolation of hypocone 33C and first by mold 33 is thinned
The upper surface outer edge of object 34V constitutes the first hole inner annular slot 11.According to this structure, it also achieves and to be rushed with first embodiment
Depress the same function and effect of mould 50.
[third embodiment]
As shown in figure 9, the first spacer 34W that the mold 30W of the punching press lower die 50 of present embodiment has does not have
The upper tapering 34A of the first embodiment, internal diameter are roughly the same with the internal diameter of lower end of hypocone 33C of thinned mold 33.
According to this structure, the lubricating oil L being contaminated can be swimmingly discharged downwards.
[other embodiments]
The present invention is not limited to the embodiment, for example, embodiments described below is also contained in skill of the invention
Within the scope of art, in addition, various changes are able to carry out in the range of not departing from purport to implement other than following.
(1) in the above-described embodiment, mold 30 is divided, but can also use the not divided structure of mold.
(2) in the above-described embodiment, mold base 51 is divided into retainer pedestal 53 and keeps frame body 54, but can also be with
Mold base 51 is not split.
(3) in said embodiment, in the shaped hole 40 with drawing portion 41 and thinning part 42, thinning part 42 becomes
" minimum necking part " of the invention, but in the shaped hole only with thinning part, thinning part can also be set as it is of the invention " most
Drawing portion can also be set as " minimum necking part " of the invention in the shaped hole only with drawing portion by small necking part ".Separately
Outside, it will can also carry out simultaneously drawing and forming and the part shaped is thinned to be set as " minimum necking part " of the invention.
(4) can also be using the structure of sustainable supply lubricant always, can also use can interlock with the movement of formed punch
The structure of ground switching supply.
(5) first hole inner annular slots 11 make grooved profile become triangle, but slot by hypocone 33C and upper tapering 34A
Section may be rectangle, can also be semicircle.
(6) in the above-described embodiment, first end opening 13D, second end opening 14D are formed in mold 30, but
Mold base 51 can be formed in.
(7) in the above-described embodiment, it is formed with the first lubricant supply road 13 in the upper surface of the first spacer 34, but
Lubricant can also be formed in the lower surface that mold 33 is thinned supply road.It is not provided with the first spacer 34 alternatively, it is also possible to use,
And the structure on road is supplied in the upper surface of basal cushions 35 setting lubricant.
(8) lubricant is not limited to lubricating oil L, or grease or suds etc..
(9) discharge path 13C, 14C can be one, can also be two or more.In addition, with a plurality of discharge path 13C's
In the case of, it can also with unequal interval configure.
(10) it in the case where having a plurality of discharge path 13C, is also configured to separate first more intermediate annular road 13B and leads
The discharge path 13C of the connected component of approach 13A than close to the connected component discharge path 13C it is thick, thus discharge path 13C each other
Between inhibit lubricating oil L discharge rate difference.
(11) in the above-described embodiment, be formed with the first hole inner annular slot 11, but can also using do not have first every
The hypocone 33C of upper tapering 34A and thinned mold 33 from object 34 and the structure for being not provided with the first hole inner annular slot 11.
(12) in the above-described embodiment, the first hole inner annular slot 11 is annularly formed in the whole of the circumferential direction of shaped hole 40
Body, but can also be using the structure of circumferential a part that the first hole inner annular slot is set to shaped hole 40.For the second hole
It is also same for inner annular slot 12.
Claims (12)
1. a kind of punching press lower die, with shaped hole, make workpiece mobile to a direction in the shaped hole and to the workpiece into
Forming is thinned in row drawing and forming, then makes the workpiece mobile to other direction and is discharged from the shaped hole,
It is characterized in that,
The punching press lower die has:
Lubricant supplies road, will guide from the lubricant that feeding lubricating device sprays into the shaped hole；And
First end opening is set to the lubricant and supplies road, and the ratio in the medial surface of the shaped hole is most narrow most
Small necking part supplies lubricant into the forming by inboard outs open.
2. punching press lower die according to claim 1, which is characterized in that
The punching press lower die includes: the mold with the shaped hole；And with the mold reception hole being fitted into for the mold
Mold base,
The mold is divided into die main body with the minimum necking part in the axial direction of the shaped hole and than the mould
Have inboard spacer of the main body by the shaped hole, and the die main body coincides with one another with the spacer,
Lubricant supply road is formed in at least one party of the die main body and the mutual coincidence face of the spacer
A part,
Have a pair of of tapering in each medial surface of the die main body and the spacer, the internal diameter in a pair of tapering towards this
A little die main bodies and the mutual coincidence face of spacer and it is gradually expanding,
Has internal diameter than the minimum necking down by the inboard of the shaped hole than the tapering in the medial surface of the spacer
The slightly larger cylindrical portion in portion.
3. punching press lower die according to claim 1, which is characterized in that
The punching press lower die includes: the mold with the shaped hole；And with the mold reception hole being fitted into for the mold
Mold base,
The mold is divided into die main body with the minimum necking part in the axial direction of the shaped hole and than the mould
Have inboard spacer of the main body by the shaped hole, and the die main body coincides with one another with the spacer,
Lubricant supply road is formed in at least one party of the die main body and the mutual coincidence face of the spacer
A part,
Have internal diameter towards the spacer in the medial surface of the die main body and gradually expanding tapering,
The medial surface of the spacer is roughly the same with the internal diameter of major diameter side end in the tapering of the die main body.
4. punching press lower die according to claim 1, which is characterized in that
The punching press lower die includes: the mold with the shaped hole；And with the mold reception hole being fitted into for the mold
Mold base,
The mold is divided into die main body with the minimum necking part in the axial direction of the shaped hole and than the mould
Have inboard spacer of the main body by the shaped hole, and the die main body coincides with one another with the spacer,
Lubricant supply road is formed in at least one party of the die main body and the mutual coincidence face of the spacer
A part,
Have internal diameter towards the spacer in the medial surface of the die main body and gradually expanding tapering,
The medial surface of the spacer is in the internal diameter more slightly larger than the minimum necking part, and from the cone of the die main body
The major diameter side end in portion is with step-like necking down.
5. punching press lower die according to any one of claim 2 to 4, which is characterized in that
In the die main body and at least one party of the mutual coincidence face of the spacer, the lubricant supplies one of road
Divide and be formed as radial discharge path,
It is being cone by the die main body and the excision of the outer edge complete cycle of at least one party of the mutual coincidence face of the spacer
Between outer rim cutout unit made of shape and the medial surface of the mold reception hole, a part on lubricant supply road is formed as
More intermediate annular road,
The importing road connected between the outer surface of the mold base and the more intermediate annular road is formed as into the lubricant supply
The a part on road.
6. punching press lower die according to claim 5, which is characterized in that
The discharge path far from the more intermediate annular road and the connected component for importing road is than the institute close to the connected component
It is thick to state discharge path.
7. punching press lower die according to claim 5, which is characterized in that
It is described to import road and the more intermediate annular road in the same face and the radial direction for importing more intermediate annular road described in Lu Yu
The side of intersection upwardly extends.
8. according to claim 1 to punching press lower die described in any one of 4,6,7, which is characterized in that
Have in the medial surface of the shaped hole: carrying out the drawing portion of drawing and forming to workpiece；And it is located at than the drawing portion
The thinning part of minimum necking part as described in that forming is thinned is carried out by inboard position and workpiece,
Lubricant supply road has the opening of the second end between the drawing portion and the thinning part.
9. punching press lower die according to claim 5, which is characterized in that
Have in the medial surface of the shaped hole: carrying out the drawing portion of drawing and forming to workpiece；And it is located at than the drawing portion
The thinning part of minimum necking part as described in that forming is thinned is carried out by inboard position and workpiece,
Lubricant supply road has the opening of the second end between the drawing portion and the thinning part.
10. according to claim 1 to punching press lower die described in any one of 4,6,7,9, which is characterized in that
The punching press lower die has stripper pin, which is driven in the workpiece and carries out straight line fortune in the shaped hole
It is dynamic,
Between the side of the stripper pin and the medial surface of the shaped hole, be formed with for by lubricant to the stripper pin
Lower section discharge lubricant discharge path.
11. punching press lower die according to claim 5, which is characterized in that
The punching press lower die has stripper pin, which is driven in the workpiece and carries out straight line fortune in the shaped hole
It is dynamic,
Between the side of the stripper pin and the medial surface of the shaped hole, be formed with for by lubricant to the stripper pin
Lower section discharge lubricant discharge path.
12. punching press lower die according to claim 8, which is characterized in that
The punching press lower die has stripper pin, which is driven in the workpiece and carries out straight line fortune in the shaped hole
It is dynamic,
Between the side of the stripper pin and the medial surface of the shaped hole, be formed with for by lubricant to the stripper pin
Lower section discharge lubricant discharge path.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-235284 | 2016-12-02 | ||
| JP2016235284A JP6352372B2 (en) | 2016-12-02 | 2016-12-02 | Press lower mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107716725A CN107716725A (en) | 2018-02-23 |
| CN107716725B true CN107716725B (en) | 2019-07-12 |
Family
ID=61219806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711210654.7A Active CN107716725B (en) | 2016-12-02 | 2017-11-27 | Punching press lower die |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6352372B2 (en) |
| KR (1) | KR101947122B1 (en) |
| CN (1) | CN107716725B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365624A (en) * | 2018-11-22 | 2019-02-22 | 安徽中斯特流体设备有限公司 | A kind of full-automatic multi-functional check-valves valve block processing unit (plant) |
| CN112059030A (en) * | 2020-10-21 | 2020-12-11 | 程亮 | Metal fitting stamping die |
| CN112935121B (en) * | 2021-02-02 | 2023-11-17 | 上海申驰实业股份有限公司 | Auxiliary discharging device of die for stamping automobile parts |
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| CN204276684U (en) * | 2013-12-10 | 2015-04-22 | 大金工业株式会社 | Aluminum fin and deep-drawing processing device thereof and heat exchanger |
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| JPS5951374B2 (en) * | 1978-07-31 | 1984-12-13 | 東洋製罐株式会社 | Nozzle device for ironing machine |
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| JPS61255737A (en) * | 1985-05-10 | 1986-11-13 | Honda Motor Co Ltd | Metal die cooling method |
| GB2181082B (en) * | 1985-10-04 | 1990-02-07 | Metal Box Plc | Production of metal cans |
| GB2228883B (en) * | 1989-03-08 | 1993-05-12 | Honda Motor Co Ltd | Successive cold working process |
| JP3231798B2 (en) * | 1991-03-13 | 2001-11-26 | アルミニウム カンパニー オブ アメリカ | Drawing / ironing equipment and lubrication / cooling method |
| US5632171A (en) * | 1996-02-01 | 1997-05-27 | Reynolds Metals Company | Ironing press laminar flow lubrication ring |
| JP3394171B2 (en) * | 1997-12-05 | 2003-04-07 | 本田技研工業株式会社 | Forming punch device |
| JP4418206B2 (en) * | 2003-10-28 | 2010-02-17 | 大和製罐株式会社 | Die for ironing of resin-coated metal cans |
| JP2013103246A (en) * | 2011-11-14 | 2013-05-30 | Daiwa Can Co Ltd | Apparatus for manufacturing resin coated metallic seamless can |
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- 2016-12-02 JP JP2016235284A patent/JP6352372B2/en active Active
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2017
- 2017-11-22 KR KR1020170156118A patent/KR101947122B1/en active IP Right Grant
- 2017-11-27 CN CN201711210654.7A patent/CN107716725B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106336A (en) * | 1985-08-23 | 1987-02-18 | 艾普克公司 | The mould that is used for tube drawing |
| CN1126451A (en) * | 1993-05-29 | 1996-07-10 | 卡瑙德金属箱公开有限公司 | Coolant spacer ring |
| CN101304825A (en) * | 2005-11-04 | 2008-11-12 | 东洋制罐株式会社 | Deep-drawing attenuated processing method of resin clad metal plate as well as resin coating deep-drawing attenuated tank using said method |
| CN204276684U (en) * | 2013-12-10 | 2015-04-22 | 大金工业株式会社 | Aluminum fin and deep-drawing processing device thereof and heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018089659A (en) | 2018-06-14 |
| JP6352372B2 (en) | 2018-07-04 |
| KR20180063822A (en) | 2018-06-12 |
| CN107716725A (en) | 2018-02-23 |
| KR101947122B1 (en) | 2019-02-13 |
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