CN109351853A - A kind of three-dimensional bending tube composite molding tooling - Google Patents
A kind of three-dimensional bending tube composite molding tooling Download PDFInfo
- Publication number
- CN109351853A CN109351853A CN201811306099.2A CN201811306099A CN109351853A CN 109351853 A CN109351853 A CN 109351853A CN 201811306099 A CN201811306099 A CN 201811306099A CN 109351853 A CN109351853 A CN 109351853A
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- Prior art keywords
- necking
- plate
- hold
- bending
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005452 bending Methods 0.000 title claims abstract description 49
- 238000000465 moulding Methods 0.000 title claims abstract description 18
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000000694 effects Effects 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Present invention discloses a kind of three-dimensional bending tube composite molding toolings, realize the bending and necking simultaneously operating to U-tube, including lower template, cope plate, and it is mounted on two cylinders between bolster, two groups of hold-fast bodies, two groups of bending mechanisms, one necking mechanism, wherein, two groups of hold-fast bodies are separately mounted to bolster two sides, for the fixation to U-shaped bend pipe two sides, and two groups of bending mechanisms are mounted on upper mold back, on the same line positioned at hold-fast body side and with hold-fast body, realize the pushing bending to U-shaped end, necking mechanism is between bolster, positioned at the hold-fast body other side, realize that the necking to U-tube free end is handled.
Description
Technical field
The present invention relates to bending and molding device more particularly to a kind of three-dimensional bending tube composite molding toolings.
Background technique
In the accessory of heat exchanger, three-dimensional bending tube is a kind of relatively conventional part, and structure is integrally U-shaped, U-shaped end to
Lower bending, and two free ends are throat structure, for this three-dimensional bending tube, existing processing method is too cumbersome, first will be straight
Pipe be processed into it is U-shaped, then to two free ends by necking machine carry out necking processing, then by bending machine progress bending,
Although the processing of three-dimensional bending tube may be implemented in this process flow, but there are problems:
Firstly, the process will operate bend pipe and necking in two steps, that is to say, that need worker first to carry out necking operation, then remove
Progress bend pipe operation on bending machine is moved on to, this undoubtedly increases process time, and increases the workload of worker, so that
Processing efficiency is low, and personnel cost is big；
Secondly, it includes necking machine and bending machine that this process flow, which needs the equipment used, while mating corresponding mold is also wanted,
So that its input cost is big.
Therefore, in view of the above-mentioned problems, being badly in need of a kind of mechanism that bend pipe Yu necking simultaneously operating may be implemented.
Summary of the invention
The purpose of the present invention is to provide a kind of three-dimensional bending tube composite molding toolings, and press machine is cooperated to realize bend pipe and necking
Simultaneously operating, effectively offer processing efficiency, reduce cost.
To achieve the above object, the following technical solutions are proposed by the present invention:
A kind of three-dimensional bending tube composite molding tooling, the synchronous bending and necking for realizing U-tube, including lower template, cope plate, and
Two cylinders being mounted between bolster, two groups of hold-fast bodies, two groups of bending mechanisms and a necking mechanism, in which:
The hold-fast body is located at lower template two sides, including fixed plate, fixed to hold block and activity holding block, the fixation tightly
Plate is mounted on the back side of cope plate, and the activity holds block tightly and is mounted on the lower section of fixed plate by nitrogen gas spring, and fixes holding
Block is mounted in lower template, and block is held in activity tightly and the fixed involutory surface for holding block tightly all has arc cavity, for placing and holding U tightly
The both sides of type pipe；
The bending mechanism is to be mounted on upper mold back, is located at hold-fast body side and is located at same straight line with hold-fast body,
It includes the mounting base fixed with cope plate, and the circular arc molding wheel being fixed in mounting base, which is outer
Convex arc surface, and arc surface bottom has arc groove, with the pushing of cope plate, the U-shaped end that arc groove encases U-tube is gone forward side by side
Row pushes, and makes its bending；
The necking mechanism is located at the hold-fast body other side comprising top plate, fixing seat, Mobile base, necking forming device, tapered wedges
And inclined-plane insert, mounting of roof plate are mounted in lower template in the back side of cope plate, fixing seat, Mobile base bottom surface is U-shaped, is stuck in solid
It is slid in reservation and before and after fixing seat, Mobile base two sides have mounting hole, and necking forming device is inserted into mounting hole and passes through
Fastener resists fixation, and the arc cavity of necking forming device and hold-fast body is located at same central axes, and the inclined-plane insert is solid
It is scheduled on Mobile base, tapered wedges are mounted on top plate, and bottom is matched in inclined-plane with inclined-plane insert, and the front end face of Mobile base is embedding
Equipped with reset spring, cope plate, which pushes, drives tapered wedges to move down, to push movable block to move forward, so that necking forming device is to U-shaped
Tube end carries out necking processing.
Preferably, further including the positioning mechanism for being mounted on lower template end and being positioned to U-tube end, the localization machine
Structure includes two connecting rods and positioning plate, and described connecting rod one end is mounted in lower template, and the other end has been screwed positioning bolt,
The positioning plate two sides are extended with cantilever, and positioning plate is placed between two connecting rods, and is hung in connecting rod by cantilever.
Preferably, the activity holds tightly and is also embedded with multiple Flat wire springs between block and fixed plate.
Preferably, having necking chamber inside the necking forming device, which extends out to form taper necking.
Preferably, the fixed block upper surface of holding tightly corresponds to the side of bending mechanism as arcwall face.
Compared with prior art, a kind of three-dimensional bending tube composite molding tooling that the present invention discloses, has the following beneficial effects:
The present bend pipe surface of mechanism that punctures being moved forward and backward is set and forms notch, is then carried out by the cutting mechanism moved up and down
Punching, is gradually disengaged the bend pipe upper half under the action of being punched blade, and then punching guarantees
The circularity of cutting back part, and edge does not have metal fillings, do not need subsequent operation, and high-efficient.
Detailed description of the invention
Fig. 1 is three-dimensional bending tube structure chart of the invention；
Fig. 2 is schematic structural view of the invention；
Fig. 3 is front view of the present invention；
Fig. 4 is the cross-sectional view of C-C in Fig. 3；
Fig. 5 is the cross-sectional view of A-A in Fig. 3.
Specific embodiment
Clear, complete description is carried out below in conjunction with technical solution of the attached drawing to the embodiment of the present invention.
As shown in Fig. 1 ~ 5, a kind of disclosed three-dimensional bending tube composite molding tooling is realized on press machine
Bending and necking simultaneously operating to U-tube, and ensure the round and smooth degree of bending part, as shown in Figure 1, the three-dimensional bending tube 1 is U-shaped,
Its U-shaped end downward bending, two free ends have a necking 2, which includes lower template 3, cope plate 4, and is mounted on
Two cylinders 5 between bolster, two groups of hold-fast bodies, two groups of bending mechanisms, a necking mechanism and positioning mechanism,
In, two cylinders are separately mounted to the two sides of bolster, and two groups of hold-fast bodies are separately mounted to bolster two sides, are located at two
Between a cylinder, for the fixation to U-shaped bend pipe two sides, and two groups of bending mechanisms are mounted on upper mold back, are located at holding machine
Structure side and with hold-fast body on the same line, realize pushing bending to U-shaped end, necking mechanism be located at bolster it
Between, it is located at the hold-fast body other side, realizes that the necking to U-tube free end is handled.
Particularly, the hold-fast body includes fixed plate 6, fixed to hold block 7 and activity holding block 8, the fixed plate tightly
It is mounted on the back side of cope plate 4, the lower section that block is mounted on fixed plate by nitrogen gas spring 9, and and fixed plate are held in the activity tightly
Between be also embedded with multiple Flat wire springs 10, fixed block of holding tightly is mounted in lower template 3, corresponds to the edge that U-tube pushes side
In cambered surface 11, the radian of the cambered surface is consistent with the radian of bending part after three-dimensional bending tube processing, and the activity is held block tightly and fixed and embraces
The mutual pairing of tight block, and arc cavity is all had on involutory surface, the diameter of the arc-shaped chamber is consistent with u-tube diameter, so that U-shaped
Pipe is just inserted into that this is arc-shaped intracavitary, and in this configuration, not only the installation of block is held in realization activity tightly for the use of nitrogen gas spring, matches
Closing Flat wire spring may insure that the lower pressure of block is held in activity tightly, so that it holds block tightly pairing tightly with fixed, realize to U-tube
It holds tightly, due to being the spring structure used, with certain elastic restoring force, so the lower pressure revocation received in cope plate
Afterwards, cope plate moves up under the action of elastic restoring force, the holding to U-tube is contacted, to pick and place U-tube.
The bending mechanism includes the mounting base 12 fixed with cope plate, the circular arc molding wheel 13 being fixed in mounting base,
The circular arc molding wheel lower end surface is the arc surface 14 of evagination, and arc surface bottom has arc groove 15, and the arc groove and U-tube are straight
Diameter is consistent, since lower pressure surface is an arc surface, so the A point of arc groove contacts U-tube first with the pushing of cope plate,
It is bent, since contact surface is arcwall face, so contact point is gradually transferred to B point, and cooperates with the progress of pushing
It holds the cambered surface of fixing seat end tightly, realizes the similar wheel roller bending to U-tube, it is ensured that the rounding off of bending part, no
There are problems that flattening.
It then include top plate 16 for necking mechanism, fixing seat 17, Mobile base 18, necking forming device 19, tapered wedges 20 and tiltedly
Face insert 21, mounting of roof plate is at the back side of cope plate, and tapered wedges are mounted on top plate, and the bottom of tapered wedges is inclined-plane, institute
Fixing seat to be stated to be mounted in lower template, Mobile base bottom surface is U-shaped, and it is stuck in fixing seat and can be slid before and after fixing seat, in order to
It realizes to be moved forward and backward Mobile base and limit, Mobile base two sides are located in fixing seat, limited post 22 is set, so that Mobile base
Back-and-forth motion position can guarantee that the Mobile base two sides have mounting hole 23, and necking forming device is inserted into mounting hole simultaneously
Fixation is resisted by fastener 24, there is necking chamber 25 inside necking forming device, which extends out to form taper necking
26, the installation site of necking forming device is necessary to ensure that the arc cavity of necking chamber and hold-fast body is located at same central axes, in this way
It just may insure the end of alignment U-tube in necking processing, the inclined-plane insert 21 is fixed on Mobile base, with tapered wedges
It is used in conjunction with each other, the lower pressure of tapered wedges is transformed into the horizontal impulse to Mobile base, the movement using bevel structure
The front end face of seat is embedded with reset spring 27, can realize the reset to Mobile base, this knot after the lower pressure releases of cope plate
The use principle of structure is that cope plate moves down under external force, so that tapered wedges cooperation inclined-plane insert pushes movable block Forward, from
And make so that necking forming device moves forward, to the progress necking processing of U-tube end.
The design of the positioning mechanism is to ensure that position when U-tube is packed into determines, structure includes two connecting rods 28
And positioning plate 29, described connecting rod one end are mounted in lower template, the other end has been screwed positioning bolt, the positioning plate two sides
It is extended with cantilever 29, positioning plate is placed between two connecting rods, and is hung in connecting rod by cantilever, is packed into and is embraced in U-tube
After tight mechanism, front and back adjusts its position, and U-shaped end, which resists positioning plate i.e., indicates that position is correct.
Technology contents and technical characteristic of the invention have revealed that as above, however those skilled in the art still may base
Make various replacements and modification without departing substantially from spirit of that invention, therefore, the scope of the present invention in teachings of the present invention and announcement
It should be not limited to the revealed content of embodiment, and should include various without departing substantially from replacement and modification of the invention, and be this patent Shen
Please claim covered.
Claims (5)
1. a kind of three-dimensional bending tube composite molding tooling, the synchronous bending and necking for realizing U-tube, it is characterised in that: including lower die
Plate, cope plate, and two cylinders being mounted between bolster, two groups of hold-fast bodies, two groups of bending mechanisms and a contracting
Mouth mechanism, in which:
The hold-fast body is located at lower template two sides, including fixed plate, fixed to hold block and activity holding block, the fixation tightly
Plate is mounted on the back side of cope plate, and the activity holds block tightly and is mounted on the lower section of fixed plate by nitrogen gas spring, and fixes holding
Block is mounted in lower template, and block is held in activity tightly and the fixed involutory surface for holding block tightly all has arc cavity, for placing and holding U tightly
The both sides of type pipe；
The bending mechanism is to be mounted on upper mold back, is located at hold-fast body side and is located at same straight line with hold-fast body,
It includes the mounting base fixed with cope plate, and the circular arc molding wheel being fixed in mounting base, which is outer
Convex arc surface, and arc surface bottom has arc groove, with the pushing of cope plate, the U-shaped end that arc groove encases U-tube is gone forward side by side
Row pushes, and makes its bending；
The necking mechanism is located at the hold-fast body other side comprising top plate, fixing seat, Mobile base, necking forming device, tapered wedges
And inclined-plane insert, mounting of roof plate are mounted in lower template in the back side of cope plate, fixing seat, Mobile base bottom surface is U-shaped, is stuck in solid
It is slid in reservation and before and after fixing seat, Mobile base two sides have mounting hole, and necking forming device is inserted into mounting hole and passes through
Fastener resists fixation, and the arc cavity of necking forming device and hold-fast body is located at same central axes, and the inclined-plane insert is solid
It is scheduled on Mobile base, tapered wedges are mounted on top plate, and bottom is matched in inclined-plane with inclined-plane insert, and the front end face of Mobile base is embedding
Equipped with reset spring, cope plate, which pushes, drives tapered wedges to move down, to push movable block to move forward, so that necking forming device is to U-shaped
Tube end carries out necking processing.
2. a kind of three-dimensional bending tube composite molding tooling according to claim 1, it is characterised in that: further include being mounted on lower die
The positioning mechanism that plate end positions U-tube end, the positioning mechanism include two connecting rods and positioning plate, the company
Extension bar one end is mounted in lower template, and the other end has been screwed positioning bolt, and the positioning plate two sides are extended with cantilever, and positioning plate is put
It sets between two connecting rods, and is hung in connecting rod by cantilever.
3. a kind of three-dimensional bending tube composite molding tooling according to claim 1, it is characterised in that: it is described activity hold tightly block with
Multiple Flat wire springs are also embedded between fixed plate.
4. a kind of three-dimensional bending tube composite molding tooling according to claim 1, it is characterised in that: in the necking forming device
Portion has necking chamber, which extends out to form taper necking.
5. a kind of three-dimensional bending tube composite molding tooling according to claim 1, it is characterised in that: on the holding fixed block
The side that surface corresponds to bending mechanism is arcwall face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811306099.2A CN109351853A (en) | 2018-11-05 | 2018-11-05 | A kind of three-dimensional bending tube composite molding tooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811306099.2A CN109351853A (en) | 2018-11-05 | 2018-11-05 | A kind of three-dimensional bending tube composite molding tooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109351853A true CN109351853A (en) | 2019-02-19 |
Family
ID=65344136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811306099.2A Pending CN109351853A (en) | 2018-11-05 | 2018-11-05 | A kind of three-dimensional bending tube composite molding tooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109351853A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102639A (en) * | 2019-04-10 | 2019-08-09 | 崔云兰 | A kind of the punch forming composite die and its processing technology of automobile chair frame |
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| JP2010051990A (en) * | 2008-08-27 | 2010-03-11 | Sumikin Kiko Kk | Method of manufacturing necked elbow |
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Application publication date: 20190219 |