CN208390781U - The right angle auto parts and components continuous mould of side blow aperture apparatus and the application device - Google Patents

The right angle auto parts and components continuous mould of side blow aperture apparatus and the application device Download PDF

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Publication number
CN208390781U
CN208390781U CN201820584405.8U CN201820584405U CN208390781U CN 208390781 U CN208390781 U CN 208390781U CN 201820584405 U CN201820584405 U CN 201820584405U CN 208390781 U CN208390781 U CN 208390781U
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die
punch
formed punch
hole
slide mass
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CN201820584405.8U
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吴文亮
王鹏智
王磊
张金川
徐春燕
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ZHENGZHOU XINCHANG AUTOMOBILE PARTS CO Ltd
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ZHENGZHOU XINCHANG AUTOMOBILE PARTS CO Ltd
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Priority to CN201820584405.8U priority Critical patent/CN208390781U/en
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Abstract

A kind of side blow aperture apparatus and the right angle auto parts and components continuous mould using the device, vertical driving force is converted to laterally driven power in such a way that inclined-plane drives transverse movement by the side blow aperture apparatus, it is upper to cleverly utilize the vertical force of upper and lower mould molding, the formed punch two sides of the side blow aperture apparatus are arranged symmetrically simultaneously, two-way reinforcing just symmetrically offsets each other, lateral destructive power will not be formed to intermediate mold core, such structure is conducive to the service life of mold, should the side blow aperture apparatus continuous mould, successfully solve the problems, such as that side blow needs independent mold in the prior art, it can be realized the continuous production of the right angle components, reduce the input cost of mold, it reduces workpiece and positions number, to improve the quality and efficiency of production, reduction in the numbers of seconds, it is energy-saving.

Description

The right angle auto parts and components continuous mould of side blow aperture apparatus and the application device
Technical field
The utility model relates to the technical fields of right angle auto parts and components manufacture, more particularly to a kind of side blow aperture apparatus and Using the right angle auto parts and components continuous mould of the device.
Background technique
Auto parts and components steelplate punching bending and molding first rushes the generally use of some small right angle auto parts and components after tearing open Molding process fabricates, stamping and blanking involved in entire process, brake forming, flanging molding, punching and side blow The multiple procedure of processings in hole, process is comparatively laborious, especially side punching step, needs to be laterally applied to punching pressure in part Power, the molding of existing mold are cannot achieve vertically reinforcing, and are needed multiple sets of molds thus to fabricate, are related to work The multiple bearing of part is installed, and necessarily has detrimental effect to the positioning accuracy of workpiece and processing quality, therefore cause this kind of workpiece The high problem of defect rate, it is necessary to the processing mold of this part is promoted and is transformed, especially for side punching plus Work will more be paid special attention to.
Utility model content
To solve the above problems, the utility model proposes a kind of side blow aperture apparatus and applications zero, right angle automobile of the device Part continuous mould.
The technical solution of the utility model is: a kind of side blow aperture apparatus, including being located at the side punching mold core body at middle part and right Claim the side blow holes mechanism for being arranged in the core two sides, it is characterized in that: the mould including intermediate support and two sides of the core Body, the lateral surface of the die body of two sides mutually symmetrical side blow die hole are equipped in the inside of die body and fall slug hole, this falls slug hole Through the lower surface of die body;The side blow holes mechanism includes firm banking, slide mass, formed punch, the firm banking it is upper Portion is equipped with sliding slot, and the lower shape of slide mass is matched with sliding slot shape, and slide mass lower part is encased in the cunning of formation level in sliding slot Dynamic cooperation is inclined drive surface in the lateral surface of slide mass, and the formed punch is mounted on slide mass by briquetting and backing plate, It is equipped in briquetting and passes through the via hole with the matched via hole of formed punch, formed punch middle part, be equipped with bellend, the mistake of briquetting in the tail portion of formed punch Hole tail portion is equipped with to be supported on backing plate with the matched stage portion of bellend, the bellend, and fastening screw passes through briquetting and backing plate is twisted Enter and formed punch is pressed on slide mass into the screw hole of slide mass, reset spring, punching are equipped between slide mass and firm banking The front end of head is corresponding with the side blow die hole location on die body.
Preferably, the tail portion of described reset spring one end connection slide mass, the other end are connected and fixed the sliding slot of pedestal Tail portion.
Preferably, the front end of the briquetting is additionally provided with formed punch watch box, which is equipped with formed punch via hole second, formed punch Across the formed punch via hole second, side of the two sides of formed punch watch box respectively with the side of briquetting, die body mutually coincide.
A kind of right angle auto parts and components continuous mould of the side blow aperture apparatus using front, including upper die and lower die, it is special Sign is: the upper mold includes upper die base, and above, monosymmetric be distributed in the central axes of pedestal cuts area, upper molding Area, upper punch area, upside punch area, upper Disengagement zone,
It includes upper cutting template, cutting knife, upper gage punch on several that area is cut on described, in upper cutting template Be equipped with it is corresponding with cutter position is above cut cut die hole, location hole die hole, the upper cutting knife and upper gage punch Top is each attached in upper die base, and lower part passes through the corresponding die hole on upper cutting template,
The upper shaping area includes a bending upper die and several flanging upper molds, and bending upper die and flanging upper mold are Cavity plate,
The upper punch area is equipped with one two two pierce punches being arranged symmetrically along central axes;
The upside punch area includes two two positioning needle bodies being arranged symmetrically along central axes, in upside punch area Two sides are equipped with the side blow being arranged symmetrically along central axes and drive wedge block;It is pitch drives that the side blow, which drives the medial surface of wedge block, Face;
Axis line position in upper Disengagement zone is equipped with separation cut knife;
The lower die include lower die base and being arranged under corresponding with upper mold position in lower die base cut area, under Shaping area, lower punch area, downside punch area, lower Disengagement zone, lower die base lower part are equipped with the support of several parallel intervals arrangement Body, supporter lower part are bottom plate;
It includes cutting template that area is cut under described, and upper gage punch is equipped on lower cutting template and corresponds to falling for location hole Expect hole, the material-dropping hole cut corresponding with being above cut to, material-dropping hole is connected to the gap between supporter through cutting template;
The lower shaping area includes a bending lower die and several flanging lower dies, and bending lower die and flanging lower die are Punch-pin,
The lower punch area is equipped with one two two material-dropping holes being arranged symmetrically along central axes;
The downside punch area side blow aperture apparatus, including being located at the side punching mold core body at middle part and being arranged symmetrically in the core The side blow holes mechanism of body two sides, the die body including intermediate support and two sides of the core, the lateral surface of the die body of two sides Mutually symmetrical side blow die hole is equipped in the inside of die body and falls slug hole, this falls the lower surface that slug hole runs through die body;It is described Side blow holes mechanism include firm banking, slide mass, formed punch, the top of the firm banking is equipped with sliding slot, under slide mass Portion's shape is matched with sliding slot shape, and slide mass lower part is encased in that formation in sliding slot is horizontal to be slidably matched, in the outside of slide mass Face is inclined drive surface, and the two forms the face that is slidably matched;The side blow driving wedge block of the drive surface and upper mold of slide mass inclines Oblique drive surface matching, the formed punch are mounted on slide mass by briquetting and backing plate, are equipped with and the matched mistake of formed punch in briquetting Hole, formed punch middle part pass through the via hole, are equipped with bellend in the tail portion of formed punch, the via hole tail portion of briquetting is equipped with matched with bellend Stage portion, the bellend are supported on backing plate, and fastening screw passes through briquetting and backing plate is screwed into the screw hole of slide mass and will rush Head is pressed on slide mass, and reset spring, the side stamp die on the front end and die body of formed punch are equipped between slide mass and firm banking Hole site is corresponding;
The axis line position of the lower Disengagement zone falls slug hole equipped with corresponding with cutoff tool.
Preferably, the tail portion of described reset spring one end connection slide mass, the other end are connected and fixed the sliding slot of pedestal Tail portion.
Preferably, the front end of the briquetting is additionally provided with formed punch watch box, which is equipped with formed punch via hole second, formed punch Across the formed punch via hole second, side of the two sides of formed punch watch box respectively with the side of briquetting, die body mutually coincide.
Preferably, the edge of the upper die base is equipped with several interior guide rods, and position pair is equipped in lower die base Several the interior guide sleeves answered, interior guide rod and interior guide sleeve form sliding pair;It is led outside there are four being set simultaneously in the quadrangle of upper mold To set, the corresponding position in the quadrangle of following lower die is set there are four outer guide rod, and outer guide rod and outer guide sleeve are formed and slided It is secondary.The technical effect of the utility model
Vertical driving force is converted to cross in such a way that inclined-plane drives transverse movement by the side blow aperture apparatus of the utility model To driving force, to the vertical force that upper and lower mould molds cleverly be utilized upper, while the formed punch two sides of the side blow aperture apparatus are symmetrical Arrangement, two-way reinforcing just symmetrically offset each other, and will not form lateral destructive power to intermediate mold core, such structure is conducive to The service life of mold, it should which the continuous mould of the side blow aperture apparatus successfully solves side blow in the prior art and needs individually The problem of mold, can be realized the continuous production of the right angle components, reduce the input cost of mold, reduce workpiece positioning time Number, to improve the quality and efficiency of production, reduction in the numbers of seconds is energy-saving.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of side blow aperture apparatus;
Fig. 2 is the B-B the schematic diagram of the section structure of Fig. 1;
Fig. 3 is the C-C the schematic diagram of the section structure of Fig. 1;
Fig. 4 is the schematic perspective view of side blow aperture apparatus;
Fig. 5-6 is the side punching mold core body schematic perspective view in Fig. 1;
Fig. 7 is the schematic perspective view using the right angle auto parts and components continuous mould of the side blow aperture apparatus;
Fig. 8 is the schematic view of the front view using the right angle auto parts and components continuous mould of the side blow aperture apparatus;
Fig. 9 is the D-D the schematic diagram of the section structure of Fig. 8;
Figure 10 is the schematic perspective view (band workpiece) of upper mold;
Figure 11 is the schematic perspective view of upper mold (without workpiece);
Figure 12 is the schematic perspective view (band workpiece) of lower die;
Figure 13 is the schematic perspective view of lower die (without workpiece);
Figure 14 is the schematic perspective view for connecting the workpiece in process;
1. slide mass, 2. firm bankings, 3. reset springs, 4. backing plates, 5. briquettings, 6. watch boxes, 7. side punching formed punches, 8. Support body, 9. die bodys, 91. side blow die holes, 92. fall slug hole,
11. upper mold, 21. lower dies, the workpiece in 31. connection process, 41. outer guide sleeves, 51. inner guides, outside 42. Guide rod, guide sleeve in 52.,
Cut on 111. area, shaping area on 112., punch area on 113., 114. upside punch areas, Disengagement zone on 115., Gage punch on 1111., cutting knife on 1112., 1121. bending upper dies, 1122. flanging upper molds, 1131. pierce punches, 1141. side blows drive wedge block, 1151. separation cut knives,
Cut under 211. area, 212. lower shaping areas, 213. lower punch areas, 214. downside punch areas, 215. lower Disengagement zone, Material-dropping hole that the material-dropping hole of 2111. location holes, 2112. are cut, 2121. bending lower dies, 2122. flanging lower dies, 2131. are fallen Expect hole, 2141. side blow aperture apparatus,
311. workpiece cut area, the shaping area of 312. workpiece, the punch area of 313. workpiece, 314. workpiece side blow Porose area, 315, the Disengagement zone of workpiece, 316. workpiece side punching.
Specific embodiment
Embodiment one: referring to Fig. 1-6, a kind of side blow aperture apparatus in figure, including being located at the side punching mold core body at middle part and right Claim to be arranged in the side blow holes mechanisms of the core two sides, the die body including intermediate support and two sides of the core, two sides The lateral surface of die body mutually symmetrical side blow die hole is equipped in the inside of die body and falls slug hole, this falls slug hole through die body Lower surface;The side blow holes mechanism includes firm banking, slide mass, formed punch, and the top of the firm banking, which is equipped with, to be slided The lower shape of slot, slide mass is matched with sliding slot shape, and slide mass lower part is encased in that formation in sliding slot is horizontal to be slidably matched, The lateral surface of slide mass is inclined drive surface, and the formed punch is mounted on slide mass by briquetting and backing plate, is set in briquetting Have and pass through the via hole with the matched via hole of formed punch, formed punch middle part, is equipped with bellend in the tail portion of formed punch, the via hole tail portion of briquetting is set Have and be supported on backing plate with the matched stage portion of bellend, the bellend, fastening screw passes through briquetting and backing plate is screwed into sliding Formed punch is pressed on slide mass in the screw hole of body, reset spring, the front end of formed punch are equipped between slide mass and firm banking It is corresponding with the side blow die hole location on die body.
The tail portion of reset spring one end connection slide mass, the other end are connected and fixed the tail portion of the sliding slot of pedestal, this Sample slide mass can be withdrawn into inside jet-bedding under the action of the spring after pushing formed punch punching.
The front end of the briquetting is additionally provided with formed punch watch box, which is equipped with formed punch via hole second, and formed punch passes through should Formed punch via hole second, side of the two sides of formed punch watch box respectively with the side of briquetting, die body mutually coincide, this punching is contact surface Contact is stablized, and formed punch watch box avoids formed punch from generating sliding during punching for protecting formed punch, cause formed punch fracture or Bending, while also can guarantee that the direction of formed punch is accurate, avoid the deviation of punching position;
The workpiece suit of side blow porose area in Figure 14 at work, is mounted in the die body of internal mold core by the hole punched device On, the firm banking that die body and supporter are fixed on the rack motionless two sides is also secured at motionless in rack, the tail portion of slide mass Pitch drives face under the promotion of external vertical pressure, lateral component is generated on pitch drives face, which pushes away Dynamic slide mass drives formed punch transverse movement, and formed punch passes through the upper punching of workpiece and die body, waste material is shifted onto useless after falling in slug hole Material discharge, after external vertical pressure removes, slide mass return under the action of the spring.
Embodiment two: referring to Fig. 7-14, zero, right angle automobile of side blow aperture apparatus described in a kind of Application Example one in figure Part continuous mould, including upper die and lower die, the upper mold include upper die base, monosymmetric point of the central axes of pedestal above It is furnished with and cuts area, upper shaping area, upper punch area, upside punch area, upper Disengagement zone,
It includes upper cutting template, cutting knife, upper gage punch on several that area is cut on described, in upper cutting template Be equipped with it is corresponding with cutter position is above cut cut die hole, location hole die hole, the upper cutting knife and upper gage punch Top is each attached in upper die base, and lower part passes through the corresponding die hole on upper cutting template,
The upper shaping area includes a bending upper die and several flanging upper molds, and bending upper die and flanging upper mold are Cavity plate,
The upper punch area is equipped with one two two pierce punches being arranged symmetrically along central axes;
The upside punch area includes two two positioning needle bodies being arranged symmetrically along central axes, in upside punch area Two sides are equipped with the side blow being arranged symmetrically along central axes and drive wedge block;It is pitch drives that the side blow, which drives the medial surface of wedge block, Face;
Axis line position in upper Disengagement zone is equipped with separation cut knife;
The lower die include lower die base and being arranged under corresponding with upper mold position in lower die base cut area, under Shaping area, lower punch area, downside punch area, lower Disengagement zone, lower die base lower part are equipped with the support of several parallel intervals arrangement Body, supporter lower part are bottom plate;
It includes cutting template that area is cut under described, and upper gage punch is equipped on lower cutting template and corresponds to falling for location hole Expect hole, the material-dropping hole cut corresponding with being above cut to, material-dropping hole is connected to the gap between supporter through cutting template;
The lower shaping area includes a bending lower die and several flanging lower dies, and bending lower die and flanging lower die are Punch-pin,
The lower punch area is equipped with one two two material-dropping holes being arranged symmetrically along central axes;
The downside punch area side blow aperture apparatus, the side punching mold core being fixed in lower die base including being located at middle part Body and the side blow holes mechanism for being arranged symmetrically in the core two sides, the die body including intermediate support and two sides of the core, The lateral surface of the die body of two sides mutually symmetrical side blow die hole is equipped in the inside of die body and falls slug hole, this falls slug hole and passes through Wear the lower surface of die body;The side blow holes mechanism includes the firm banking, slide mass, formed punch being fixed on lower die pedestal, institute The top for the firm banking stated is equipped with sliding slot, and the lower shape of slide mass is matched with sliding slot shape, and slide mass lower part is encased in cunning Formation is horizontal in slot is slidably matched, and is inclined drive surface in the lateral surface of slide mass, the two forms the face that is slidably matched;Sliding The drive surface of body is matched with the pitch drives face of the side blow of upper mold driving wedge block, and the formed punch is installed by briquetting and backing plate On slide mass, it is equipped in briquetting and passes through the via hole with the matched via hole of formed punch, formed punch middle part, be equipped with and expand in the tail portion of formed punch End, the via hole tail portion of briquetting is equipped with to be supported on backing plate with the matched stage portion of bellend, the bellend, and fastening screw passes through pressure Block and backing plate are screwed into the screw hole of slide mass and formed punch are pressed on slide mass, are equipped between slide mass and firm banking multiple Position spring, the front end of formed punch are corresponding with the side blow die hole location on die body;
The axis line position of the lower Disengagement zone falls slug hole equipped with corresponding with cutoff tool.
The tail portion of reset spring one end connection slide mass, the other end are connected and fixed the tail portion of the sliding slot of pedestal.
The front end of the briquetting is additionally provided with formed punch watch box, which is equipped with formed punch via hole second, and formed punch passes through should Formed punch via hole second, side of the two sides of formed punch watch box respectively with the side of briquetting, die body mutually coincide.
The edge of the upper die base is equipped with several interior guide rods, and it is corresponding several that position is equipped in lower die base A interior guide sleeve, interior guide rod and interior guide sleeve form sliding pair;Outer guide sleeve there are four being set simultaneously in the quadrangle of upper mold, under The corresponding position of the quadrangle of the lower die in face is set there are four outer guide rod, and outer guide rod and outer guide sleeve form sliding pair.
The continuous mould at work, strip blank is successively passed through the upper surface of below being placed into and cuts area: to right angle The unfolded state shape of components carries out punching shaping and is punched out location hole;
Then into shaping area, rectangular shaped is bent by bender, then by flange die to straight after bending The edge of angle part carries out flange,
Subsequently into punch area, the punching in the upper plane of orthogonal work piece, location hole when as sidewise punching below,
Then side blow porose area is punched out the side of orthogonal work piece under the action of side blow aperture apparatus,
Subsequently into Disengagement zone, symmetrical two workpiece completed the process are cut off from blank simultaneously, finished product The components of two rectangular shapeds are fallen, and complete the work on the entire progressive die.

Claims (7)

1. a kind of side blow aperture apparatus, including the side punching mold core body for being located at middle part and the side punching for being arranged symmetrically in the core two sides Mechanism, it is characterized in that: the die body including intermediate support and two sides of the core, the lateral surface of the die body of two sides is mutually Symmetrical side blow die hole, is equipped in the inside of die body and falls slug hole, this falls the lower surface that slug hole runs through die body;The side blow Holes mechanism includes firm banking, slide mass, formed punch, and the top of the firm banking is equipped with sliding slot, the lower shape of slide mass It is matched with sliding slot shape, it is to incline in the lateral surface of slide mass that slide mass lower part, which is encased in that formation in sliding slot is horizontal to be slidably matched, Oblique drive surface, the formed punch are mounted on slide mass by briquetting and backing plate, briquetting be equipped with the matched via hole of formed punch, The via hole is passed through in the middle part of formed punch, is equipped with bellend in the tail portion of formed punch, the via hole tail portion of briquetting is equipped with and bellend matched Rank portion, the bellend are supported on backing plate, and fastening screw passes through briquetting and backing plate is screwed into formed punch in the screw hole of slide mass It is pressed on slide mass, reset spring, the side blow die hole on the front end and die body of formed punch is equipped between slide mass and firm banking Position is corresponding.
2. a kind of side blow aperture apparatus according to claim 1, it is characterised in that: described reset spring one end connects sliding The tail portion of body, the other end are connected and fixed the tail portion of the sliding slot of pedestal.
3. a kind of side blow aperture apparatus according to claim 1, it is characterised in that: the front end of the briquetting is additionally provided with formed punch Watch box, the formed punch watch box be equipped with formed punch via hole second, formed punch pass through the formed punch via hole second, the two sides of formed punch watch box respectively with pressure The side of block, the side of die body mutually coincide.
4. a kind of right angle auto parts and components continuous mould using claim 1 side blow aperture apparatus, including upper die and lower die, special Sign is: the upper mold includes upper die base, and above, monosymmetric be distributed in the central axes of pedestal cuts area, upper molding Area, upper punch area, upside punch area, upper Disengagement zone,
It includes upper cutting template, cutting knife, upper gage punch on several that area is cut on described, is set on upper cutting template Have and corresponding with cutter position is above cut cuts die hole, location hole die hole, the top of the upper cutting knife and upper gage punch It being each attached in upper die base, lower part passes through the corresponding die hole on upper cutting template,
The upper shaping area includes a bending upper die and several flanging upper molds, and bending upper die and flanging upper mold are recessed Mould,
The upper punch area is equipped with one two two pierce punches being arranged symmetrically along central axes;
The upside punch area includes two two positioning needle bodies being arranged symmetrically along central axes, in the two sides of upside punch area Wedge block is driven equipped with the side blow being arranged symmetrically along central axes;It is pitch drives face that the side blow, which drives the medial surface of wedge block,;
Axis line position in upper Disengagement zone is equipped with separation cut knife;
The lower die includes lower die base and is arranged under corresponding with upper mold position in lower die base and cuts area, lower molding Area, lower punch area, downside punch area, lower Disengagement zone, lower die base lower part are equipped with the supporter of several parallel intervals arrangement, branch Support body lower part is bottom plate;
It includes cutting template that area is cut under described, and the blanking that upper gage punch corresponds to location hole is equipped on lower cutting template Hole, the material-dropping hole cut corresponding with being above cut to, material-dropping hole are connected to the gap between supporter through cutting template;
The lower shaping area includes a bending lower die and several flanging lower dies, and bending lower die and flanging lower die are convex Mould,
The lower punch area is equipped with one two two material-dropping holes being arranged symmetrically along central axes;
The downside punch area side blow aperture apparatus, including being located at the side punching mold core body at middle part and being arranged symmetrically in the core two The side blow holes mechanism of side, the die body including intermediate support and two sides of the core, the lateral surface of the die body of two sides are homogeneous Mutually symmetrical side blow die hole, is equipped in the inside of die body and falls slug hole, this falls the lower surface that slug hole runs through die body;The side Punch mechanism includes firm banking, slide mass, formed punch, and the top of the firm banking is equipped with sliding slot, the lower part shape of slide mass Shape is matched with sliding slot shape, and slide mass lower part is encased in that formation in sliding slot is horizontal to be slidably matched, and is in the lateral surface of slide mass Inclined drive surface, the two form the face that is slidably matched;The inclination of the side blow driving wedge block of the drive surface and upper mold of slide mass is driven Dynamic face matching, the formed punch are mounted on slide mass by briquetting and backing plate, are equipped with and the matched via hole of formed punch, punching in briquetting Centriciput passes through the via hole, is equipped with bellend in the tail portion of formed punch, the via hole tail portion of briquetting is equipped with and the matched step of bellend Portion, the bellend are supported on backing plate, and fastening screw passes through briquetting and backing plate is screwed into formed punch pressure in the screw hole of slide mass On slide mass, reset spring, the side stamp die hole location on the front end and die body of formed punch are equipped between slide mass and firm banking Set correspondence;
The axis line position of the lower Disengagement zone falls slug hole equipped with corresponding with cutoff tool.
5. auto parts and components continuous mould in right angle according to claim 4, it is characterized in that: described reset spring one end connects The tail portion of slide mass is connect, the other end is connected and fixed the tail portion of the sliding slot of pedestal.
6. auto parts and components continuous mould in right angle according to claim 4, it is characterized in that: the front end of the briquetting is also set There is formed punch watch box, which is equipped with formed punch via hole second, and formed punch passes through the formed punch via hole second, the two sides point of formed punch watch box Side not with the side of briquetting, die body mutually coincide.
7. auto parts and components continuous mould in right angle according to claim 4, it is characterized in that: the edge of the upper die base Equipped with guide rod in several, the corresponding guide sleeve in several in position, interior guide rod and interior guiding are equipped in lower die base Set forms sliding pair;It sets simultaneously in the quadrangle of upper mold there are four outer guide sleeve, the corresponding position in the quadrangle of following lower die is set There are four outer guide rod, outer guide rod and outer guide sleeve form sliding pair.
CN201820584405.8U 2018-04-24 2018-04-24 The right angle auto parts and components continuous mould of side blow aperture apparatus and the application device Active CN208390781U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112170697A (en) * 2020-09-27 2021-01-05 长沙市金佰利汽车零部件有限公司 Eight-way forward rolling bracket punch forming die for automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112170697A (en) * 2020-09-27 2021-01-05 长沙市金佰利汽车零部件有限公司 Eight-way forward rolling bracket punch forming die for automobile

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