CN112496160B - Manufacturing method of tail pipe decorative frame - Google Patents
Manufacturing method of tail pipe decorative frame Download PDFInfo
- Publication number
- CN112496160B CN112496160B CN202011193557.3A CN202011193557A CN112496160B CN 112496160 B CN112496160 B CN 112496160B CN 202011193557 A CN202011193557 A CN 202011193557A CN 112496160 B CN112496160 B CN 112496160B
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- decorative frame
- die holder
- upper die
- frame body
- die
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000004080 punching Methods 0.000 claims abstract description 46
- 238000003825 pressing Methods 0.000 claims abstract description 25
- 238000013461 design Methods 0.000 claims abstract description 4
- 238000009966 trimming Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005034 decoration Methods 0.000 description 20
- 238000012545 processing Methods 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 3
- 238000000748 compression moulding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
-
- 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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The utility model discloses a manufacturing method of a tail pipe decorative frame body, which comprises the following steps of: stretching, trimming and flanging according to the design requirement of the decorative frame body to form a decorative frame body blank; step 2: carrying out sharp angle pressing die on the rounded corners of the decorative frame blank through a sharp angle die, so that the rounded corners of the decorative frame blank are converted into straight line included angles, and the decorative frame to be punched is formed; step 3: and punching along the straight line included angle and perpendicular to the inside of the to-be-punched decorative frame body through a punching die to form the tail pipe decorative frame body. The utility model has the advantages that the tail pipe decorative frame body can be processed and manufactured by forming the straight line included angle through the included angle film pressing of the round angle and then punching through the punching die, and the hole edge of the tail pipe decorative frame body after punching is not required to be turned up, so that the phenomena of die mark and edge tilting of the tail pipe decorative frame body after punching are prevented, the forming quality of the tail pipe decorative frame body is improved, and the manufacturing efficiency of the tail pipe decorative frame body is also improved.
Description
Technical Field
The utility model relates to the technical field of tail pipe decorative frame body manufacturing, in particular to a method for manufacturing a tail pipe decorative frame body.
Background
Exhaust pipes are well known as important components for automobile exhaust, and generally include an exhaust pipe body, an exhaust connection pipe, and an automobile tail pipe. The decorative tail pipe is exposed, so that the decorative effect of the appearance can be improved, meanwhile, the supercharging and turbulence effects are achieved, and the noise emitted by the tail pipe is weakened to a certain extent.
The tail pipe of automobile is generally composed of an outer pipe and an inner pipe, the outer pipe has a certain decoration, the outer pipe is mainly used for protecting the inner pipe, a gap is needed between the inner wall of the outer liner and the outer wall of the inner liner to prevent noise, for example, an improved automobile decoration tail pipe is disclosed in Chinese patent publication No. CN208669395U, wherein the outer pipe and the inner pipe are disclosed. But in order to prevent the visual effect from being influenced by light leakage in the gap between the outer tube and the inner tube, the phenomenon that water and sediment thrown up by the tire can enter the inside of the decorative tail tube and can corrode the inner tube after long-term adhesion, so that the service life of the decorative tail tube is short is prevented. The above problems are generally solved by installing decorative frames at the positions of the ends of the outer tube and the inner tube.
At present, the automobile has higher and higher appearance requirements, and visual defects such as stamping marks, edge warping and the like of a die are not allowed to be visually detected; in general, the conventional techniques in the manufacturing process of the decorative frame are: stretching, trimming, flanging, punching, hole flanging and the like. As shown in fig. 1 and fig. 2, the joint between the first outer portion 11 and the first inner portion 12 of the decorative frame body blank 1 forms a round corner 13, the punching direction in the punching process is required to be perpendicular to the punching surface, but due to the round corner 13, the punching direction of the decorative frame body blank 1 can only be perpendicular to the first inner portion 12, as indicated by an arrow in fig. 2, is the punching direction, as shown in fig. 3, the decorative frame body blank 1 after the punching is completed is obtained, the round corner 13 still remains, and then the round corner 13 at the joint between the first outer portion 11 and the first inner portion 12 is subjected to hole flanging to form the decorative frame body 5 in fig. 4, but the defect of die mark and edge warping can be generated after the hole flanging.
Disclosure of Invention
The utility model aims to solve the technical problem of how to prevent the tail pipe decoration frame body from generating die marks and edge warping after punching.
In order to solve the technical problems, the utility model provides the following technical scheme:
a manufacturing method of a tail pipe decorative frame body comprises the following steps:
step 1: stretching, trimming and flanging according to the design requirement of the decorative frame body to form a decorative frame body blank;
step 2: carrying out sharp angle pressing die on the rounded corners of the decorative frame blank through a sharp angle die, so that the rounded corners of the decorative frame blank are converted into straight line included angles, and the decorative frame to be punched is formed;
step 3: and punching along the straight line included angle and perpendicular to the inside of the to-be-punched decorative frame body through a punching die to form the tail pipe decorative frame body.
And 2, forming a straight line included angle by carrying out included angle compression molding on the round angle, and then punching through a punching die to finish processing and manufacturing of the tail pipe decorative frame body without flanging the hole edges of the tail pipe decorative frame body after punching, so that the phenomenon that the tail pipe decorative frame body after punching is provided with die marks and edge warping is prevented, the molding quality of the tail pipe decorative frame body is improved, and the manufacturing efficiency of the tail pipe decorative frame body is also improved.
Preferably, the closed angle die comprises a first upper die base, a first upper die plate, a closed angle material pressing die, a first lower die and a first lower die base, wherein the first upper die plate is fixed on the bottom surface of the first upper die base, at least one closed angle material pressing die matched with the structure of the to-be-punched decorative frame body is fixed on the lower surface of the first upper die plate, a first lower die matched with the closed angle material pressing die is arranged below the closed angle material pressing die, and the first lower die is fixed on the first lower die base.
Preferably, a plurality of first guiding devices are further arranged between the first upper die holder and the first lower die holder, and first guiding holes matched with the first guiding devices are formed in the first upper die holder.
The first guiding device comprises a first mounting seat, a first mounting guide sleeve, a first guide pillar and a first ball guide sleeve, wherein the first mounting seat is fixed on the upper surface of the first lower die holder, the first mounting guide sleeve is fixed on the lower surface of the first upper die holder, one end of the first guide pillar is vertically fixed on the upper surface of the first mounting seat, the other end sleeve penetrates through the first mounting guide sleeve and stretches into the first guiding hole, and the first ball guide sleeve is sleeved on the first guide pillar which stretches into the first mounting guide sleeve and the first guiding hole.
Through the setting of first ball guide sleeve for friction between first guide pillar and the first upper die base diminishes, and lubricity is higher, has protected first guide pillar and first upper die base like this, improves their life, simultaneously can also be better improve the direction precision, thereby improves the cooperation precision between closed angle swager and the first lower mould, and then has guaranteed the straight line contained angle shaping precision of waiting to punch a hole the decoration framework.
Preferably, a cushion block is further fixed between the first mounting seat and the lower surface of the upper die holder.
Preferably, a plurality of first limit posts are vertically arranged on the first lower die holder.
Preferably, the cut-out press includes second upper die base, second cope match-plate pattern, takes off flitch, elastic component, drift, second lower bolster and second die holder, second upper die base, second cope match-plate pattern and take off the flitch from top to bottom and connect gradually, second upper die base and second cope match-plate pattern fixed connection, take off flitch and second upper die base swing joint through a plurality of elastic component along second upper die base thickness direction, the lower surface of second upper die base is fixed with the drift that runs through second cope match-plate pattern and take off the flitch in proper order, take off the flitch below be provided with can with take off flitch complex second lower bolster, the second lower bolster is fixed on the second lower bolster, with be provided with the discharge opening on second lower bolster and the second lower bolster that the punching press end position of drift corresponds.
Preferably, a plurality of second guiding devices are arranged between the second upper die holder and the second lower die holder, and second guiding holes matched with the second guiding devices are formed in the second upper die holder.
The second guiding device comprises a second mounting seat, a second mounting guide sleeve, a second guide pillar and a second ball guide sleeve, wherein the second mounting seat is fixed on the upper surface of the second lower die holder, the second mounting guide sleeve is fixed on the lower surface of the second upper die holder, one end of the second guide pillar is vertically fixed on the upper surface of the second mounting seat, the other end sleeve penetrates through the second mounting guide sleeve and stretches into the second guiding hole, and the second ball guide sleeve is sleeved on the second guide pillar stretching into the second mounting guide sleeve and the second guiding hole.
Through the setting of second ball guide pin bushing for friction between second guide pillar and the second upper die base diminishes, and lubricity is higher, has protected second guide pillar and second upper die base like this, improves their life, simultaneously can also better improvement direction precision, thereby improves the cooperation precision between drift and the second lower mould, and then has guaranteed the quality of punching a hole of waiting to punch a hole to decorate the framework.
Preferably, a plurality of second limiting columns are vertically arranged on the second lower die holder.
Preferably, the upper surface of the second lower die holder is also fixed with a second lower die plate for fixing the second lower die.
Preferably, a guide rod is further arranged on the upper surface of the second lower die plate, and one end, far away from the second lower die plate, of the guide rod penetrates through the stripper plate.
Compared with the prior art, the utility model has the beneficial effects that:
1. and 2, forming a straight line included angle by carrying out included angle compression molding on the round angle, and then punching through a punching die to finish processing and manufacturing of the tail pipe decorative frame body without flanging the hole edges of the tail pipe decorative frame body after punching, so that the phenomenon that the tail pipe decorative frame body after punching is provided with die marks and edge warping is prevented, the molding quality of the tail pipe decorative frame body is improved, and the manufacturing efficiency of the tail pipe decorative frame body is also improved.
2. Through the setting of first ball guide sleeve for friction between first guide pillar and the first upper die base diminishes, and lubricity is higher, has protected first guide pillar and first upper die base like this, improves their life, simultaneously can also be better improve the direction precision, thereby improves the cooperation precision between closed angle swager and the first lower mould, and then has guaranteed the straight line contained angle shaping precision of waiting to punch a hole the decoration framework.
3. Through the setting of second ball guide pin bushing for friction between second guide pillar and the second upper die base diminishes, and lubricity is higher, has protected second guide pillar and second upper die base like this, improves their life, simultaneously can also better improvement direction precision, thereby improves the cooperation precision between drift and the second lower mould, and then has guaranteed the quality of punching a hole of waiting to punch a hole to decorate the framework.
Drawings
FIG. 1 is a schematic view of a prior art decorative frame blank;
FIG. 2 is a schematic cross-sectional view of a prior art decorative frame blank;
FIG. 3 is a schematic cross-sectional view of a prior art decorative frame blank after punching;
FIG. 4 is a schematic view of a decorative frame;
FIG. 5 is a schematic diagram of punching a decorative frame according to an embodiment of the present utility model;
FIG. 6 is a schematic view of a sharp corner mold according to an embodiment of the present utility model;
FIG. 7 is a cross-sectional view of a pointed mold according to an embodiment of the utility model;
FIG. 8 is a schematic view of a first guiding device according to an embodiment of the present utility model;
FIG. 9 is a schematic structural view of a punching die according to an embodiment of the present utility model;
FIG. 10 is a cross-sectional view of a punching die according to an embodiment of the present utility model;
fig. 11 is a schematic structural view of a second guiding device according to an embodiment of the present utility model.
Detailed Description
In order to facilitate the understanding of the technical scheme of the present utility model by those skilled in the art, the technical scheme of the present utility model will be further described with reference to the accompanying drawings.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated unless otherwise explicitly specified and defined. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1
The embodiment discloses a manufacturing method of a tail pipe decorative frame body, which comprises the following steps:
step 1: according to decorate framework design requirement and stretch, cut edge and turn-ups and form the decoration framework blank 1 as shown in figure 2, decorate framework blank 1 includes first outside 11, first inside 12 and fillet 13, first outside 11 package is in first inside 12 periphery, and first inside 12 indent sets up, first outside 11 passes through fillet 13 and first inside 12 transitional coupling, the centre of a circle side of fillet 13 is the outside of decorating framework blank 1, and the one side of keeping away from the centre of a circle side is the inboard of decorating framework blank 1.
Step 2: the rounded corners 13 of the decorative frame blank 1 are subjected to sharp corner pressing through the sharp corner mold 3 shown in fig. 6, so that the rounded corners 13 of the decorative frame blank 1 are converted into straight included angles, and the decorative frame 2 to be punched is formed as shown in fig. 5, and the decorative frame 2 to be punched comprises a second outer part 21 and a second inner part 22.
As shown in fig. 6 and 7, the pointed die 3 includes a first upper die holder 31, a first upper die plate 32, a pointed pressing die 33, a first lower die 34 and a first lower die holder 35, the first upper die plate 32 is fixed on the bottom surface of the first upper die holder 31, at least one pointed pressing die 33 is fixed on the lower surface of the first upper die plate 32, in this embodiment, the pointed pressing die 33 is symmetrically arranged along the center of the pointed die 3, the first lower die 34 matched with the pointed pressing die 33 is arranged below the pointed pressing die 33, the first lower die 34 is fixed on the first lower die holder 35, the pressing end surface of the pointed pressing die 33 is identical to the outer side structure of the decorative frame 2 to be punched and can be tightly matched with the outer side of the decorative frame 2 to be punched, and the pressing end surface of the first lower die 34 is identical to the inner side structure of the decorative frame 2 to be punched and can be tightly matched with the inner side of the decorative frame 2 to be punched.
Specifically, the decoration frame body blank 1 shown in fig. 2 is placed on the first lower die 34, then the first upper die holder 31 descends to drive the sharp corner pressing die 33 to press down, the sharp corner pressing die 33 cooperates with the first lower die 34 to press the round corner 13 of the decoration frame body blank 1 into a straight line included angle, so that the first inner portion 11 of the decoration frame body blank 1 expands towards the first outer portion 12 to form the decoration frame body 2 to be punched, as shown in fig. 5, and the outer edge of the second inner portion 22 of the decoration frame body 2 to be punched corresponds to the hole edge of the later punched hole.
Step 3: punching is carried out along the outer side of the second inner part 22 of the decorative frame body 2 to be punched and perpendicular to the outer side of the second inner part 22 by a punching die 4 shown in fig. 9, namely, the direction indicated by an arrow in fig. 5 is a punching direction, and finally, the tail pipe decorative frame body 5 shown in fig. 4 is formed; through increasing step 2 above, carry out the angle moulding-die with fillet 13 and form sharp contained angle, then punch a hole through cut-out press 4 and accomplish the processing preparation of tail pipe decoration framework 5, need not carry out the turn-ups to the hole limit of tail pipe decoration framework 5 after punching a hole to prevent that the phenomenon of die mark and perk limit from appearing in tail pipe decoration framework 5 after punching a hole from taking place, not only improved the shaping quality of tail pipe decoration framework 5, still improved the preparation efficiency of tail pipe decoration framework 5.
As shown in fig. 9 and 10, the punching die 4 includes a second upper die holder 41, a second upper die plate 42, a stripper plate 43, an elastic member 44, a punch 45, a second lower die 46, a second lower die plate 47 and a second lower die holder 48, where the second upper die holder 41, the second upper die plate 42 and the stripper plate 43 are sequentially connected from top to bottom, the second upper die holder 41 and the second upper die plate 42 are fixedly connected by screws, the stripper plate 43 penetrates through the second upper die holder 42 along the thickness direction of the second upper die holder 42 by a plurality of elastic members 44 and is movably connected with the second upper die holder 41, the elastic members 44 are always in an elastic state in an original state, the lower surface of the second upper die holder 41 is fixed with a punch that penetrates through the second upper die holder 42 and the stripper plate 43 in sequence, in this embodiment, the punch is symmetrically arranged along the center of the punching die 4, the stripper plate 43 is provided with a second lower die 46 that can be matched with the stripper plate 43 and matched with the tail pipe decorative frame 5 in shape, the second lower die holder 46 is fixed with the second lower die holder 46 by a plurality of elastic members, and the punch 46 is also fixed with the punch 46 at the position corresponding to the second upper die holder 46, and the punch 46 is fixed with the punch 46 at the second lower die holder 46, and the punch 46 is fixed with the punch hole 46.
Specifically, the decoration frame body 2 to be punched in the step 2 is placed on the second lower die 46, then the second upper die holder 41 is used for descending to drive the stripper plate 43 and the punch 45, after the stripper plate 43 compresses the decoration frame body 2 to be punched, and under the action of the elastic piece 44, the second upper die holder 41 is used for continuing to descend to drive the punch 45, so that the second inner part 22 of the decoration frame body 2 to be punched is punched, after the punching is completed, the second upper die holder 41 is used for ascending to drive the punch 45 and the stripper plate 43 to ascend, and meanwhile, because the elastic piece 44 is always in an elastic state in an original state, the elastic piece 44 can be used for driving the stripper plate 43 to descend, and the punch 45 is used for continuing to ascend, so that the punch 45 is stripped, and the punching manufacturing of the tail pipe decoration frame body 5 is completed.
Further, referring to fig. 7, the pointed pressing mold 33 includes an inner mold 331 and an outer mold 332, the top of the inner mold 331 and the top of the outer mold 332 are both fixed on the lower surface of the first upper mold plate 32, a through hole capable of allowing the inner mold 331 to penetrate is formed in the outer mold 332, and a structural shape formed by the bottom surface of the inner mold 331 and the hole wall at the bottom of the through hole of the outer mold 332 is identical to the outer structure of the to-be-punched decorative frame 2. It should be noted that, because the press end surface of the pointed press mold 33 is not easy to be integrally formed due to the processing technology, in this embodiment, the pointed press mold 33 is provided with two parts, that is, the inner mold 331 and the outer mold 332, so that the press end surface of the pointed press mold 33 is composed of two parts, which is convenient for processing and manufacturing the press end surface of the pointed press mold 33.
Further, as shown in fig. 6 and 8, a plurality of first guiding devices 36 are further disposed between the first upper die holder 31 and the first lower die holder 35, and the first upper die holder 31 is provided with first guiding holes 311 matched with the first guiding devices 36, and specifically, the first guiding devices 36 are disposed along four corner directions between the first upper die holder 31 and the first lower die holder 35.
The first guiding device 36 includes a first mounting seat 361, a cushion block 362, a first mounting guide sleeve 363, a first guide pillar 364 and a first ball guide sleeve 365, where the first mounting seat 361 is fixed on the upper surface of the first lower die holder 35 by the cushion block 362, the first mounting guide sleeve 363 is fixed on the lower surface of the first upper die holder 31, one end of the first guide pillar 364 is vertically fixed on the upper surface of the first mounting seat 361, the other end sleeve penetrates the first mounting guide sleeve 363 and extends into the first guiding hole 311, the first guide pillar 364 extending into the first mounting guide sleeve 363 and the first guiding hole 311 is sleeved with the first ball guide sleeve 365, and the first ball guide sleeve 365 is used to make friction between the first guide pillar 364 and the first upper die holder 31 smaller, so that lubricity is higher, the first guide pillar 364 and the first upper die holder 31 are protected, their service lives are prolonged, and at the same time, guiding precision is also better improved, so that the matching precision between the sharp corner pressing die 33 and the first lower die 34 is improved, and the straight line forming precision of the frame body 2 to be decorated is ensured.
Still further, the first lower die holder 35 is provided with two first limiting posts 37 vertically and symmetrically along the center for limiting the end position of the first upper die holder 31 when it descends.
Similarly, a plurality of second guiding devices 49 are arranged between the second upper die holder 41 and the second lower die holder 48 of the punching die 4, and second guiding holes 411 matched with the second guiding devices 49 are arranged on the second upper die holder 41; specifically, the second guide 49 is disposed along four corner directions between the second upper die holder 41 and the second lower die holder 48.
As shown in fig. 9 and 11, the second guiding device 49 includes a second mounting seat 491, a second mounting guide sleeve 492, a second guide post 493 and a second ball guide sleeve 494, the second mounting seat 491 is fixed on the upper surface of the second lower die holder 48, the second mounting guide sleeve 492 is fixed on the lower surface of the second upper die holder 41, one end of the second guide post 493 is vertically fixed on the upper surface of the second mounting seat 491, the other end of the second guide post 493 is sleeved through the second mounting guide sleeve 492 and extends into the second guiding hole 411, the second guide post 493 extending into the second mounting guide sleeve 492 and the second guiding hole 411 is sleeved with the second ball guide sleeve 494, and the second ball guide sleeve 494 is arranged, so that friction between the second guide post 493 and the second upper die holder 41 is reduced, the lubricity is higher, the second guide post 493 and the second upper die holder 41 are protected, the service life of the second guide post 493 is prolonged, the guiding precision is also improved, the matching precision between 45 and the second lower die 46 is improved, and the punching quality of the punched frame 2 is ensured.
Still further, the second lower die holder 48 is provided with two second limiting posts (not labeled in the drawing) vertically and symmetrically along the center, for limiting the end position of the second upper die holder 41 when it descends.
Still further, the upper surface of second lower bolster 47 still is equipped with the guide bar along four angular directions, the one end that the guide bar kept away from second lower bolster 47 runs through take off flitch 43, carries out the direction spacing to take off flitch 43, improves the precision.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The above-described embodiments merely represent embodiments of the utility model, the scope of the utility model is not limited to the above-described embodiments, and it is obvious to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (10)
1. A manufacturing method of a tail pipe decorative frame body is characterized in that: the method comprises the following steps:
step 1: stretching, trimming and flanging according to the design requirement of the decorative frame body to form a decorative frame body blank;
step 2: carrying out sharp angle pressing die on the rounded corners of the decorative frame blank through a sharp angle die, so that the rounded corners of the decorative frame blank are converted into straight line included angles, and the decorative frame to be punched is formed;
step 3: and punching along the corner end part of the straight line included angle and perpendicular to the inside of the to-be-punched decorative frame body through a punching die to form the tail pipe decorative frame body.
2. The method for manufacturing a tailpipe decorative frame body according to claim 1, wherein: the closed angle die comprises a first upper die base, a first upper die plate, a closed angle material pressing die, a first lower die and a first lower die base, wherein the first upper die base is fixed on the bottom surface of the first upper die base, at least one closed angle material pressing die matched with the structure of the decorative frame to be punched is fixed on the lower surface of the first upper die plate, a first lower die matched with the closed angle material pressing die is arranged below the closed angle material pressing die, and the first lower die is fixed on the first lower die base.
3. The method for manufacturing a tailpipe decorative frame according to claim 2, wherein: a plurality of first guide devices are further arranged between the first upper die holder and the first lower die holder, and first guide holes matched with the first guide devices are formed in the first upper die holder;
the first guiding device comprises a first mounting seat, a first mounting guide sleeve, a first guide pillar and a first ball guide sleeve, wherein the first mounting seat is fixed on the upper surface of the first lower die holder, the first mounting guide sleeve is fixed on the lower surface of the first upper die holder, one end of the first guide pillar is vertically fixed on the upper surface of the first mounting seat, the other end sleeve penetrates through the first mounting guide sleeve and stretches into the first guiding hole, and the first ball guide sleeve is sleeved on the first guide pillar which stretches into the first mounting guide sleeve and the first guiding hole.
4. A method of manufacturing a tailpipe decorative frame as defined in claim 3, wherein: the first mounting seat is fixed on the upper surface of the first lower die holder through a cushion block.
5. The method for manufacturing a tailpipe decorative frame according to claim 2, wherein: a plurality of first limit posts are vertically arranged on the first lower die holder.
6. The method for manufacturing a tailpipe decorative frame body according to claim 1, wherein: the punching die comprises a second upper die holder, a second upper die plate, a stripper plate, elastic pieces, a punch, a second lower die and a second lower die holder, wherein the second upper die holder, the second upper die plate and the stripper plate are sequentially connected from top to bottom, the second upper die holder and the second upper die plate are fixedly connected, the stripper plate is movably connected with the second upper die holder along the thickness direction of the second upper die holder through the elastic pieces, the punch penetrating through the second upper die plate and the stripper plate in sequence is fixed on the lower surface of the second upper die holder, the second lower die capable of being matched with the stripper plate is arranged below the stripper plate, and a discharge hole is formed in the second lower die corresponding to the punching end position of the punch and the second lower die holder.
7. The method for manufacturing a tailpipe decorative frame as defined in claim 6, wherein: a plurality of second guide devices are arranged between the second upper die holder and the second lower die holder, and second guide holes matched with the second guide devices are formed in the second upper die holder;
the second guiding device comprises a second mounting seat, a second mounting guide sleeve, a second guide pillar and a second ball guide sleeve, wherein the second mounting seat is fixed on the upper surface of the second lower die holder, the second mounting guide sleeve is fixed on the lower surface of the second upper die holder, one end of the second guide pillar is vertically fixed on the upper surface of the second mounting seat, the other end sleeve penetrates through the second mounting guide sleeve and stretches into the second guiding hole, and the second ball guide sleeve is sleeved on the second guide pillar stretching into the second mounting guide sleeve and the second guiding hole.
8. The method for manufacturing a tailpipe decorative frame as defined in claim 6, wherein: and a plurality of second limiting columns are vertically arranged on the second lower die holder.
9. The method for manufacturing a tailpipe decorative frame as defined in claim 6, wherein: and a second lower die plate for fixing the second lower die is also fixed on the upper surface of the second lower die base.
10. The method for manufacturing a tailpipe decorative frame as defined in claim 9, wherein: the upper surface of second lower bolster still is equipped with the guide bar, the one end that the guide bar kept away from the second lower bolster runs through take off the flitch.
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|---|---|---|---|
| CN202011193557.3A CN112496160B (en) | 2020-10-30 | 2020-10-30 | Manufacturing method of tail pipe decorative frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011193557.3A CN112496160B (en) | 2020-10-30 | 2020-10-30 | Manufacturing method of tail pipe decorative frame |
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| CN112496160A CN112496160A (en) | 2021-03-16 |
| CN112496160B true CN112496160B (en) | 2023-11-28 |
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| CN201082444Y (en) * | 2007-09-19 | 2008-07-09 | 无锡市雄伟精工机械厂 | Device for forming round-smooth roll rim for metal sheet eyelet work |
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| CN112496160A (en) | 2021-03-16 |
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