CN106734443B - Back-shaped slot framework processing method and a kind of series connection insert splice bending mould - Google Patents
Back-shaped slot framework processing method and a kind of series connection insert splice bending mould Download PDFInfo
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- CN106734443B CN106734443B CN201611211991.3A CN201611211991A CN106734443B CN 106734443 B CN106734443 B CN 106734443B CN 201611211991 A CN201611211991 A CN 201611211991A CN 106734443 B CN106734443 B CN 106734443B
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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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
- B21D11/07—Making serpentine-shaped articles by bending essentially in one plane
-
- 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
- B21D37/01—Selection of materials
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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
- B21D37/04—Movable or exchangeable mountings for tools
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- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The present invention provides a kind of back-shaped slot framework processing methods and a kind of series connection insert to splice bending mould, belongs to mechanical stamping technical field, reduces welding defect, reduces leveling working hour caused by thermal deformation and reduces labor intensity；Solve the problems, such as the production slot of " Z " shape bending；Mold is made of punch assemblies, cavity plate component and positioning device three parts；Punch assemblies and cavity plate component are all made of insert tandem compound splicing punch and matrix insert；Punch assemblies include the identical only different punch insert of length of seven kinds of structures；Back-shaped slot framework processing method includes bending three times.Seperated weld length is reduced using piece tooling bending technique technology and is manufactured using general supplementary angle process.Multiple product bending is completed by piece bending mould, is reduced die manufacturing cost, can quickly be changed the mold, improve the consistency of product batches.
Description
Technical field
The invention belongs to mechanical stamping technical fields, are related to sheet metal bending and bending mould.
Background technique
(1) background technique scheme:
It is back-shaped slot framework, slot and the curved narrow required precision of plate body Z-shaped that shape of product, which is among the panel for having rivet hole,
Height, slot is narrow, and outside is high.This part is applicable in curved basic principle, and bending can use mold and carry out in press machine, can also roll over
It is used on bender, (as shown in Figure 1 and Figure 2).
In the past, back-shaped slot framework and the existing Bending Mould of the curved use of Z-shaped were unable to complete, and three-body bending single-piece is divided to spell always
Weldering processing.(as shown in Figure 3, Figure 4), product 1 are the panel with rivet hole, and product 2 and product 3 are that structure is identical length
Difference is converted into channel steel, then product 2 and product 3 is welded on product 1.3 product of product 2 and product, (as shown in Figure 5, Figure 6).
The cross-sectional view part of welding manner and position (as shown in Figure 4).Welding procedure is that the material (of the same race or xenogenesis) of welded piece is logical
It crosses heating, and with or without packing material, so that the material of workpiece is reached interatomic and build and and form the work of permanent connection
Skill process.This technical process can make product generate very big thermal deformation.
Bending process is the shape needs according to part, and plate is bent by mold and press machine (bending machine, punching machine)
It has a certain degree, certain curvature, forms the Sheet Metal Forming Technology method of certain shapes part.Mold is mounted on bending machine, with
Slide block down plate outer layer fiber is stretched, and internal layer is squeezed contracting, and neutral line is constant, and at this moment steel plate is pressed into certain angle, bending
It completes.Curved super-long structure is applied quite extensively in the industrial production, such as many automobiles, tractor, electric appliance, instrument, electronics, state
Covering, tank bracket component, bracket, button, clip in the industries such as anti-etc..The product is closed back-shaped slot frame flex part, material
Material is steel plate 3/Q235-A, so being also applied for bending principle (as shown in Fig. 7 Fig. 8).Straight punch-pin 2 is fixed using lathe bolt
On convex mould pad 1, general cavity plate 4 is fixed on cavity plate backing plate 5, is controlled between mold closure height and mold by bending machine
Gap, the i.e. pushing of guarantee punch-pin will not be too deep or cannot be compacted, punch-pin downlink, under the pressure of punch-pin, the effect of plate bending moment,
Flexible deformation is first passed around, subsequently into plastic deformation, in the plastic deformation incipient stage, plate is free bend.With punch-pin
Pushing, plate is gradually close to cavity plate V-arrangement surface.Radius of curvature and bending moment arm gradually become smaller simultaneously, and punch-pin is pushed,
Sheet metal bending deformed area continues to reduce, until with punch-pin three point contact, to stroke end of a period lean on its value side, fillet and punch-pin all
Tightly.Bending forming process terminates.
(2) defect of background technique:
Back-shaped slot framework uses multistage fission welding manufacture, and postwelding thermal deformation is big, reaches 30-50mm torsional deformation, weld seam
Need a large amount of hand grinding or even narrow slot at all can not trimming, straightening need to be leveled at deformation by hand, leveling is often lifted up
Seesaw effect, large labor intensity, presentation quality and dimensional uniformity are poor, and production efficiency is low, and there are also inspections of welding product etc.
Problem.This kind of frame structure is the same, only the change in size of framework length and width.If each size does one set of die, significantly
Increase die manufacturing cost.Existing Universal bending die tool can not meet product needs, and small lot, the production of multi items at all
Mode feature.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of back-shaped more efficiently processing method of slot framework, provide
A kind of simple series connection insert bending mould for the processing of back-shaped slot framework.
Seperated weld length is reduced using piece tooling bending technique technology and is manufactured using general supplementary angle process.Subtract
Few welding defect reduces leveling working hour caused by thermal deformation and reduces labor intensity；The production slot for solving " Z " shape bending is asked
Topic does not have to adjusting after forming, improve production efficiency.
Multiple product bending is completed by piece bending mould, die manufacturing cost is reduced, can quickly change the mold, and is improved
The consistency of product batches.
This method and mold are applicable in flexible forming, have enough plasticity, yield tensile ratio (σb/σs) small, yield point and elasticity
Ratio (the σ of modulusb/ E) small metal material.For example, the materials such as mild steel, brass and aluminium, thickness≤3mm, length≤1500mm
Product.
The technical scheme is that, a kind of series connection insert splice bending mould, by punch assemblies, cavity plate component and fixed
Position device three parts composition；Punch assemblies and cavity plate component are all made of insert tandem compound splicing punch and matrix insert；Punch assemblies
Including the identical only different punch insert of length of seven kinds of structures, punch assemblies section is big radian tulwar shape；Cavity plate component
It is made of cavity plate and die socket, is transition fit between cavity plate and die socket, cavity plate is pressed into die socket, the two is fixed
Together；Cavity plate includes with seven kinds of size die plate inserts, and each series connection can combine as different lengths size；Cavity plate is boss knot
Structure, when cavity plate V-shaped groove center line to outer wall dimension on the left of cavity plate is second of bending the crook of part to end distance V-arrangement
For groove center line to cavity plate outer wall distance, cavity plate is the symmetrical slot structure of double V-arrangements；Die socket has a wide groove, cavity plate among it
Clamping is in die socket；The cavity plate and die socket transition fit；Positioning device be by fastening bolt, positioning plate, locking nut and
Positioning bolt composition；, positioning plate is fixed on die socket by fastening bolt, fastening bolt passes through die socket and withstands on cavity plate；
Away from top on positioning plate, just above the tapped through hole of the position processing at the top of cavity plate, the positioning bolt precession threaded hole, and
It is fixed on the outside of positioning plate using locking nut；Die socket have multiple holes for fastening bolt, enable positioning plate with
The increase and decrease of die plate insert quantity is moved along die socket.
Preferably, punch and matrix insert is fabricated to 50,80,100,150,200,300,500mm seven kinds of length dimensions respectively；
Seven kinds of dimension combination different lengths.
Preferably, punch-pin mouth width dimensions 11mm is respectively designed to three kinds of fillet sizes.
Preferably, punch insert material selects 42GrMo material, integral quenching HRC47 ± 2, punch insert series connection splicing
Clamping is on bending machine
Preferably, die socket Design of length is 1500mm, has a 50mm wide groove among it.
Preferably, cavity plate assembly material selects 42GrMo material, integral quenching HRC47 ± 2.
Preferably, when second of bending of part, the crook of part to distance, that is, V-shaped groove center line of end to cavity plate outer wall
Distance is 8.5mm.
Back-shaped slot framework processing method, steps are as follows:
First time bending step: according to bending linear dimension, rotational positioning bolt stretches out the length of positioning plate, makes cavity plate V-arrangement
Groove center is equal to bending linear dimension to positioning bolt distance, and locking nut lies in plate on cavity plate, and plate and positioning
Bolt is close to, and punch-pin pushes, and product type is at first time bending；
Second of bending step: first time bending overturning 180 degree is buckled on cavity plate, with cavity plate by positioning device of first dismantling
Outer wall is close to, and is positioned with outer wall on the left of cavity plate, is equal to cavity plate V-shaped groove center line to cavity plate outer wall distance and is calculated secondary bending
Bending linear dimension, punch-pin push, product type is at second of bending；
Third time bending step: reinstalling positioning device, readjusts positioning bolt, locking nut will be second
Bending turns back 180 degree again and is placed on cavity plate, is close to positioning bolt, by bending line sizing, completes third time bending, completes
The bending on one side.
Preferably, back-shaped slot framework processing method, steps are as follows:
The long Edge Bend of two back-shaped slot frameworks is first completed by the above-mentioned sequence of bending three times, then completes the folding of two short sides
Curved, framework bending is completed.
Mould structure is simple, weight is light, easy to operate, practical.Bending die structure is by punch-pin, die set
It is formed with positioning device three parts.Wherein cavity plate is mainly made of die plate insert, die socket, the fixed die socket of cavity plate transition fit
In, according to product length series connection die plate insert, accomplish quickly to change the mold；There are two types of position fraction for positioning device；Punch-pin is mainly by curved
Knife punch insert composition, it is of different sizes according to product bending R, it has separately designed R1-3 kind punch-pin and has been used in series the various length of composition
Size.One group of effective die parameters L for manufacturing experimently and being used to produceA=14；rT=1；RA=0.8；RA1=0.2；β=88 degree, such as
Shown in Figure 11.And with both the above positioning method, it is bent three step of time-division and implements, complete the bending three times of framework, solve Z " shape
Curved production slot problem, as shown in Figure 16, Figure 17, Figure 18.
Technical effect of the invention is as follows:
Seperated weld length is reduced using dedicated insert tooling bending technique technology and uses general supplementary angle process system
It makes.(general supplementary angle can standardize)
1, the product processed by press device and special bending mould has the following advantages compared with welding forming:
1) weld seam is reduced 90%-95% by such method, saves the nearly 90%-95% of wlding, and artificial leveling is one piece small by 3
When be reduced to 30 minutes, substantially reduce labor intensity of workers.Product appearance quality is improved, guarantees the consistency of size.Shorten
Product machining period reduces manufacturing procedure, reduces laser cutting length 2/3.
Bending special tooling technology is combined by using multistage, improvement is clearly.Fusion length is reduced
95%.Level the time by original one piece 3 hours, shorten to complete for 30 minutes, greatly reduce labor intensity of workers, presentation quality and
Dimensional uniformity is good, substantially increases production efficiency.
A, when leveling section: annual 700 are pressed, average every with 2, every piece is saved 2.5 hours, and 23 yuan per hour,
700X2X2.5 hours X23 member/hour=80500 yuan；
B, when weld seam section: average every weld seam is 2.8 meters, 20 ms/h of weldering speed long
(2.8 × 95% × 2 × 700)/20 × 23=4282.6 member
C, laser cutting and wlding consumption do not count.
2) mold only needs before start, framework long side clamping punch-die insert is first pressed, after the completion of two long Edge Bends, by short
Side size directly unloads the insert of part punch-die, then rolls over short both sides.Debugging mold is not needed in this way, will not influence mounted in machine
The straightness of bed upper mold, and while also saving when mould unloading, is laborsaving, does not need to carry out adjusting to product, labor intensity is small, accomplishes quickly
Mold changing, accomplishes one module multiple usages, saves a large amount of mold manufacturing expense, the administration fee of mold storing.
According to statistics some projects: seven kinds of vehicles of statistics, about 22.5 meters of framework size
Comprehensive various factors mold 1.5 ten thousand/rice of manufacturing expense, ten thousand yuan of 22.5 × 1.5=33.75,
1.5 meters of combination die length, ten thousand yuan of 1.5 × 1.5=2.25, save 31.5 ten thousand yuan of mold manufacturing expense.
The characteristics of suitable multi items, small lot produces, quickly the time is saved in mold changing: changing a mold, the interior activity duration subtracts
37.4 minutes few, the outer activity duration reduces 32 minutes, presses 700 ÷ 30=23.33 crowdes (37.4+32)/60 × 23.33 in batches
× 23 yuan/hour=1414.75 yuan
3) product size precision is higher, and presentation quality is good, arc transition naturally, and product batches consistency it is good.
2, special bending mould design structure be simple and convenient to operate, manufacturing cost it is low, can accomplish quickly to change the mold, it is practical
The advantages that property is strong.
Detailed description of the invention
Fig. 1 product processes portion profile figure
Fig. 2 product shape cross-sectional view
The former conceptual scheme in Fig. 3 product processing part
The former scheme cross-sectional view in Fig. 4 product processing part
Fig. 5 product 2 and 3 product main view of product (length of two kinds of parts is different)
3 product left view of Fig. 6 product 2 and product
Fig. 7 bending machine working principle main view
Fig. 8 bending machine working principle cross-sectional view
Fig. 9 punch assemblies schematic diagram
Figure 10 cavity plate component diagram
Figure 11 positioning device schematic diagram
Figure 12 cavity plate schematic diagram
Figure 13 die socket schematic diagram
Figure 14 positioning device schematic view of the mounting position
Figure 15 die parameters illustrate schematic diagram
Bending schematic diagram of Figure 16
The secondary bending schematic diagram of Figure 17
Figure 18 bending schematic diagram three times.
Wherein, 4 convex mould pad, the 5 general cavity plate 8 of straight 6 plate of punch-pin 7 installs 9 cavity plate of backing plate, 10 I-cooperation of die socket
14 M10X40 positioning bolt of 11M10X45 fastening bolt 12 positioning plate, 13 M10 locking nut 15 plate 16 in face is once rolled over
Curved 17 2 bendings 18 bending three times.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.
The simple series connection insert bending mould of one kind of the invention is by punch assemblies (such as Fig. 9), cavity plate component (such as Figure 10)
It is formed with positioning device (such as Figure 11) three parts.Punch assemblies and cavity plate component are all made of insert tandem compound splicing punch and matrix
Insert, according to the back-shaped diversified feature of slot framework length dimension.
Punch and matrix insert is fabricated to 50,80,100,150,200,300,500mm seven kinds of length dimensions, seven kinds of sizes respectively
Various length are freely combined, insert tandem docking is seamless, accomplishes the diversification for adapting to product size.Punch-pin, cavity plate are improved simultaneously
Utilization rate accomplishes one module multiple usages, saves a large amount of mold manufacturing expense, the administration fee of mold storing.
The identical only length of seven kinds of punch insert contour structures is different in punch assemblies (such as Fig. 9), if punch-pin is made into directly
Can interfere with the folding curved above product of twice, therefore be made into big radian tulwar shape, punch-pin mouth width dimensions 11mm both guarantees mold
Intensity meets the needs of folding narrow slot when preventing the above bending process of twice again the case where preceding working procedure interference later process.For
The different needs for meeting product fillet are respectively designed to tri- kinds of fillet sizes of R1, R2, R3.Punch insert material is selected
42GrMo material, integral quenching HRC47 ± 2.The material of selection is high-intensitive, and harden ability is good, good toughness.Punch-pin series connection splicing clamping
It on bending machine, is connected and fixed by lathe bolt itself with lathe, docks seamless, the punch-pin as needed for dismounting partial-length
Block quickly changes the mold, completes the product bending of different length.This design punch structure is simple, light-weight, convenient for mounting and clamping, reduces mould
Tool land occupation, can be used itself lathe bolt and fixes.
Cavity plate component (such as Figure 10) is made of cavity plate (such as Figure 12) and die socket (such as Figure 13), female die block and die socket it
Between be transition fit 50H7/k6 (marker I), cavity plate is pressed into die socket, pass through fastening bolt (11 in such as Figure 10) will
The two is fixed together.Shown in cavity plate (such as Figure 12), is connected using seven kinds of size inserts, various length dimensions can be freely combined.
It only need to increase and decrease die plate insert quantity according to product bending length dimension in production, accomplish quickly to change the mold.Cavity plate is made into boss knot
Structure, both guarantees mould strength, also reduces the waste of finishing；Cavity plate V-shaped groove center line (passes through V-shaped groove to cavity plate outer wall 8.5mm
Center line carries out part positioning at a distance from cavity plate outer wall), the positioning of cavity plate outer wall (positioning is used when folding second is curved) can be used,
It can be operated with safe ready, also solve the previous limitation for using bending machine tool self poisoning；Double symmetrical slot structures of V-arrangement, can be with
When mold local damage needs to replicate replacement, do not have to consider installation direction.Shown in die socket (such as Figure 13), Design of length is
1500mm has a 50mm wide groove among it, it is ensured that straightness of the cavity plate clamping in die socket, stability make
Insert docking is smooth.The cavity plate and die socket transition fit 50H7/k6, it is ensured that die plate insert, which slides into, pine also should not excessively
Tension.Once there is mold local damage, it can be convenient for the die location adjustment and duplication of die plate insert.Cavity plate assembly material selects
With 42GrMo material, integral quenching HRC47 ± 2.The material of selection is high-intensitive, and harden ability is good, good toughness.In order to fasten cavity plate and
Positioning plate, preparing 28 M10X45 fastening bolts (can determine dosage according to insert quantity, including two in positioning device
Item).
Positioning device (such as Figure 11) is made of fastening bolt 11, positioning plate 12, locking nut 13 and positioning bolt 14.
11 specification of fastening bolt is M10X45 (two), and for positioning plate 12 having a size of 135X25X10 (two pieces), locking nut is M10 (two
It is a) and 14 specification of positioning bolt be M10X40 (two), positioning plate is fixed on die socket (such as Figure 14) by fastening bolt, this
Two bolts both also can be fixed cavity plate simultaneously, and be withstood on cavity plate across die socket with stationary positioned plate.It is positioned respectively at two pieces
Each machine in position of the plate away from top 11mm adds the tapped through hole of a M10, with positioning bolt precession threaded hole, and on the outside of positioning plate
It is fixed using locking nut, the length that rotational positioning bolt can be needed to stretch out according to bending size plays the role of positioning.Cavity plate
Seat tool has multiple holes for fastening bolt, and positioning plate is enable to move with the increase and decrease of die plate insert quantity along die socket.
The material selection 42GrMo material of positioning plate, integral quenching HRC47 ± 2.The material of selection is high-intensitive, and harden ability is good, toughness.
Mold completes the process, die parameters (such as Figure 15) r for back-shaped geosynclinal block body bendingT=1；LA=14；RA=0.8；
RA1=0.2；Punch and matrix insert is first installed by back-shaped slot framework lengthwise dimension with two kinds of positioning methods in β=88 degree, completes
Two long Edge Bends, punch and matrix insert of then dismantling complete two width direction bendings of back-shaped geosynclinal block body with remaining mold.
Sequence installation mold can save by dismantle punch and matrix insert after debug again the mold time, clamped one time mould bending
Precision is high.Three step of bending time-division is implemented, and completes the bending three times of framework, solves the problems, such as the curved production slot of Z " shape.
Steps are as follows:
First time bending (such as Figure 16), according to bending linear dimension, rotational positioning bolt 14 stretches out the length of positioning plate, makes recessed
Mould V-shaped groove center is equal to bending linear dimension to positioning bolt distance, and locking nut lies in plate 15 on cavity plate, and plate
Material is close to positioning bolt, and punch-pin pushes, and product type is at first time bending 16.
Second of bending (such as Figure 17), positioning device of first dismantling, by first time bending 16 overturn 180 degree be buckled in by diagram it is recessed
It on mould, is close to cavity plate outer wall, is positioned with outer wall on the left of cavity plate, make cavity plate V-shaped groove center line to cavity plate outer wall distance 8.mm5 etc.
In the bending linear dimension for calculating secondary bending, punch-pin is pushed, and product type is at second of bending 17.
Third time bending (such as Figure 18), reinstalls positioning device, readjusts positioning bolt, locking nut, by the
Secondary bending 17, then turn back 180 degree (returning to original direction) and lain on cavity plate by diagram, it is close to positioning bolt, equally
By bending line sizing, third time bending is completed, product type is at third time bending 18.It is first completed by the above-mentioned sequence of bending three times
The long Edge Bend of two back-shaped slot frameworks, then the bending of two short sides is completed, framework bending is completed.
Claims (7)
1. using a kind of back-shaped slot framework processing method of series connection insert splicing bending mould, which is characterized in that steps are as follows:
First time bending step: according to bending linear dimension, rotational positioning bolt stretches out the length of positioning plate, makes in cavity plate V-shaped groove
The heart is equal to bending linear dimension to positioning bolt distance, and locking nut lies in plate on cavity plate, and plate and positioning bolt
It is close to, punch-pin pushes, and product type is at first time bending；
Second of bending step: first time bending overturning 180 degree is buckled on cavity plate, with cavity plate outer wall by positioning device of first dismantling
It is close to, is positioned with outer wall on the left of cavity plate, cavity plate V-shaped groove center line is made to be equal to the folding for calculating secondary bending to cavity plate outer wall distance
Curved line size, punch-pin push, and product type is at second of bending；
Third time bending step: reinstalling positioning device, readjusts positioning bolt, locking nut, by second of bending
180 degree is turned back again to be placed on cavity plate, is close to positioning bolt, by bending line sizing, is completed third time bending, is completed one
The bending on side；
A kind of series connection insert splices the specific defined below of bending mould: being filled by punch assemblies, cavity plate component and positioning
Set three parts composition；Punch assemblies and cavity plate component are all made of insert tandem compound splicing punch and matrix insert；
Punch assemblies include seven kinds of different punch inserts of structure equal length, and punch assemblies section is big radian tulwar shape,
Cavity plate component is made of cavity plate and die socket, is transition fit between cavity plate and die socket, cavity plate is pressed into die socket
In the middle, the two is fixed together；Cavity plate includes with seven kinds of size die plate inserts, and each series connection can combine as different lengths ruler
It is very little；Cavity plate is boss structure, and the crook of part is arrived when outer wall dimension is second of bending on the left of cavity plate V-shaped groove center line to cavity plate
For the distance of end, that is, V-shaped groove center line to cavity plate outer wall distance, cavity plate is the symmetrical slot structure of double V-arrangements；
Die socket has a wide groove among it, and cavity plate clamping is in die socket；The cavity plate and die socket transition fit；
Positioning device is made of fastening bolt, positioning plate, locking nut and positioning bolt；Positioning plate is fixed by fastening bolt
On die socket, fastening bolt passes through die socket and withstands on cavity plate；
Away from top on positioning plate, just above the tapped through hole of the position processing at the top of cavity plate, the positioning bolt precession screw thread
Through-hole, and fixed on the outside of positioning plate using locking nut；
Die socket has multiple holes for fastening bolt, enables positioning plate as the increase and decrease of die plate insert quantity is along cavity plate
Seat is mobile.
2. the back-shaped slot framework processing method according to claim 1 using a kind of series connection insert splicing bending mould,
It is characterized in that, punch and matrix insert is fabricated to 50,80,100,150,200,300,500mm seven kinds of length dimensions respectively；Seven kinds of rulers
Very little combination different lengths.
3. the back-shaped slot framework processing method according to claim 1 using a kind of series connection insert splicing bending mould,
It is characterized in that, punch insert material selects 42GrMo material, integral quenching HRC47 ± 2, and punch insert series connection splicing clamping exists
On bending machine.
4. the back-shaped slot framework processing method according to claim 1 using a kind of series connection insert splicing bending mould,
It is characterized in that, die socket Design of length is 1500mm, has a 50mm wide groove among it.
5. the back-shaped slot framework processing method according to claim 1 using a kind of series connection insert splicing bending mould,
It is characterized in that, cavity plate assembly material selects 42GrMo material, integral quenching HRC47 ± 2.
6. the back-shaped slot framework processing method according to claim 1 using a kind of series connection insert splicing bending mould,
It is characterized in that, when second of bending of part, the crook of part to distance, that is, V-shaped groove center line of end to cavity plate outer wall distance,
For 8.5mm.
7. the back-shaped slot framework processing method according to claim 1 using a kind of series connection insert splicing bending mould,
It is characterized in that, steps are as follows:
The long Edge Bend of two back-shaped slot frameworks is first completed by the above-mentioned sequence of bending three times, then completes the bending of two short sides, frame
Body bending is completed.
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| CN201611211991.3A CN106734443B (en) | 2016-12-25 | 2016-12-25 | Back-shaped slot framework processing method and a kind of series connection insert splice bending mould |
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| CN201611211991.3A CN106734443B (en) | 2016-12-25 | 2016-12-25 | Back-shaped slot framework processing method and a kind of series connection insert splice bending mould |
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| CN106734443B true CN106734443B (en) | 2019-02-19 |
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| JP2701082B2 (en) * | 1990-03-15 | 1998-01-21 | 丸機械工業株式会社 | Composite bending type |
| JPH06182448A (en) * | 1992-12-17 | 1994-07-05 | Amada Metrecs Co Ltd | Upper die holder for press brake |
| US5542282A (en) * | 1994-03-09 | 1996-08-06 | Inner Act, Inc. | Markless press brake material protector |
| CN201239760Y (en) * | 2008-08-15 | 2009-05-20 | 中国石油兰州石油化工公司 | Sectional type bender tool bit |
| CN202037211U (en) * | 2011-04-11 | 2011-11-16 | 漳州市昌龙汽车附件有限公司 | Auxiliary positioning device of bender for coach |
| CN202438582U (en) * | 2012-03-05 | 2012-09-19 | 重庆雷士实业有限公司 | Bending machine and front positioning device thereof |
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