CN109530506A - The bending forming method of filling block and hollow material - Google Patents
The bending forming method of filling block and hollow material Download PDFInfo
- Publication number
- CN109530506A CN109530506A CN201710861609.1A CN201710861609A CN109530506A CN 109530506 A CN109530506 A CN 109530506A CN 201710861609 A CN201710861609 A CN 201710861609A CN 109530506 A CN109530506 A CN 109530506A
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- China
- Prior art keywords
- hollow material
- core
- filling
- filling block
- oil cylinder
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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
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/01—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length
-
- 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
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/16—Auxiliary equipment, e.g. machines for filling tubes with sand
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The present invention provides including the first filling member for assisting the filling block of hollow material bending forming, the side of the first filling member is equipped with multiple grooves, and each groove is spaced apart along the extending direction of the first filling member, and the first filling member is run through in the two sides of each groove；Additionally provide the bending forming method of hollow material, comprising: filling block is packed into hollow material；Stretch bending hollow material, and groove is located at the inside of crooked radian；Extract the filling block in hollow material out.Filling block is utilized to fill out core for hollow material, the inside that retaining groove is located at crooked radian carries out stretch bending operation, the first filling member part of each groove two sides can deform and adjust the curved interior of hollow material and the stress of curved outside when stretch bending, improve the ability that hollow material resists section deformation, it is influenced with reducing bending process to the size in hollow material section, prevents the stretch bending cross section distortion of hollow material.
Description
Technical field
The invention belongs to metal working technical areas, are to be related to bending to for filling block and hollow material more specifically
Shape method.
Background technique
Curved material hollow material is usually by directly expecting that hollow material is shaped through stretch bending process, but hollow material stretch bending section is easy hair
Raw distortion.The stretch bending process of most domestic prevents hollow metal pipe profile section deformation by filling out core method at present, so-called to fill out core
Method refers to places one group of special material into the cavity of hollow material before bending, to prevent section of profile in bending process
Uncontrollable deformation occurs for face, reaches and cross sectional shape very close before bending.Fill out core method mainly include the following types:
1, back-up sand method is inserted dry sand grains in hollow material, and is closed to the both ends of hollow material, then
It is removed by stretch bending device bending forming, then by the closing at the both ends of hollow material, pours out the sand grains of filling；This, which fills out core method, has
Following disadvantage:
1) filling process is complicated, and time-consuming, first closes one end of hollow material, then pours into fine sand again, last re-closed
The other end；
2) physical strength is big, and dry sand density is 1.5 tons/cubic metre, according to the sectional dimension of 44mm*44mm, long 2600mm
It calculates, dry sand adds the weight of aluminum profile to reach 11kg or so, and manual operation and carrying are all extremely difficult；
3) dry sand has mobility, in bending process, resists the indifferent of section deformation, product is still after bending
Distortion can be generated, product quality is influenced.
2, multiple-layer stacked is carried out using certain thickness steel band and nylon sheet and forms filling block, then struck filling block by external force
Enter into hollow material, be then bent on stretch bending device, is again extracted out filling block by external force after the completion of bending；This is filled out
Core method has the disadvantages that
1) before steel band and nylon plate benging to fill out core process efficiency too low, mainly can only manually operate completion；
2) steel band and nylon sheet core pulling process operation after bending are more difficult, are unfavorable for the production of rapid batch metaplasia；
In addition, part converted products, since filling is difficult, manufacturing cost is high and is not filled with completely, lead to part upon bending
Section deformation is serious, reduces the appearance and quality of product.
As depicted in figs. 1 and 2, by it is aforementioned it is several fill out core method hollow material 300 ' after bending, due in bending process
In, the interior outside stress size and elongation percentage of hollow material 300 ' are all different, and lead to cutting for hollow material 300 ' after bending
Face deformation is serious, and upside 31 ', downside 32 ' show inclined-plane, and the radial outside 33 ' of circular arc is presented indent, this stretch bending section it is abnormal
Change causes product that technical requirements are not achieved.As shown in Figure 3 and Figure 4, product technology requires cutting for 300 ＂ of hollow material after bending
33 ＂ are without apparent deformation on the outside of 31 ＂ of upside, 32 ＂ of downside and circular arc in face.
Summary of the invention
One of the objects of the present invention is to provide a kind of for assisting the filling block of hollow material bending forming, existing to solve
There is the technical issues of stretch bending section of hollow material present in technology is easily distorted.
To achieve the above object, the technical solution adopted by the present invention is that: provide for assisting hollow material bending forming
The side of filling block, including the first filling member, first filling member is equipped with multiple grooves, and each groove is filled out along described first
The extending direction for filling part is spaced apart, and first filling member is run through in the two sides of each groove.
It further, further include the second filling member for being set to one end of first filling member, second filling member is
Rigid member.
Further, first filling member is made of engineering plastics.
Further, the engineering plastics are ultra-high molecular weight polyethylene.
It further, further include fixing piece, the first fastener and the second fastener, one end of first filling member is equipped with
Shrinkage pool, the side of first filling member are equipped with the first through hole that the shrinkage pool is connected, and the fixing piece is embedded at the shrinkage pool
Interior, one end of first fastener passes through the first through hole and connect with the fixing piece, sets on second filling member
There is the second through-hole, one end of second fastener passes through second through-hole and connect with the fixing piece.
Provided by the present invention for assisting the beneficial effect of the filling block of hollow material bending forming to be: with the prior art
It compares, in the multiple grooves of the side of the first filling member setting, stretch bending, the first filling member part of each groove two sides can occur
It deforms and adjusts the curved interior of hollow material and the stress of curved outside, the energy for resisting section deformation is provided for hollow material
Power is influenced with reducing bending process to the size in hollow material section, prevents the stretch bending section of hollow material to be distorted, simultaneously
The setting of groove is also helped extracts filling block from hollow material after bending out, and core efficiency and core pulling efficiency, energy are filled out in raising
It is enough to reuse, save the cost of hollow material bending forming.
The second object of the present invention is to provide the bending forming method of the hollow material using filling block above-mentioned, with solution
The technical issues of stretch bending section of hollow material certainly existing in the prior art is easily distorted.
To achieve the above object, the technical solution adopted by the present invention is that: the bending forming method of hollow material, including as follows
Step:
It fills out core: the filling block is packed into hollow material；
Stretch bending: hollow material described in stretch bending, and the groove is located at the inside of crooked radian；
Core pulling: the filling block in the hollow material is extracted out.
Further, have between the inner wall of the hollow material and the outer wall of the filling block when filling out core step described in completion
There is gap.
Further, prepare to take out to fill out core apparatus, core apparatus is filled out by the pumping to complete described to fill out core step and the pumping
Core step.
Further, the pumping fills out core apparatus, including pedestal, and the pedestal is equipped with hydraulic station, fills out core oil cylinder, core pulling oil
Cylinder, for fixed core to be filled out hollow material the first fixed device, for the second fixed of the fixed hollow material to core pulling
Device and filler for placing the filling block place position, described to fill out core oil cylinder and the core pulling oil cylinder is separately connected the liquid
Pressure station, the filler place position be set to the described first fixed device and it is described fill out between core oil cylinder, the described second fixed device with
Connector is equipped between the core pulling oil cylinder, one end of the connector connects the core pulling oil cylinder, and the other end is used for connecting bending
Filling block in the hollow material of song forming.
Further, described to fill out core step are as follows: the hollow material of core to be filled out is fixed using the described first fixed device,
And the filling block is placed on the filler and is placed on position, the oil cylinder axis that core oil cylinder is filled out described in control is fixed towards described first
Device is mobile, the filling block is pressed into the cavity of the hollow material；
The core pulling step are as follows: using the fixed curved hollow material of the described second fixed device, using described
Connector connection fills out core in the filling block in the hollow material, and the oil cylinder axis for controlling the core pulling oil cylinder is directed away from described the
The direction of two fixed devices is mobile, and the filling block is extracted out from the hollow material.
The beneficial effect of the bending forming method of hollow material provided by the invention is: using filling block come for hollow type
Material fills out core, and the inside that retaining groove is located at crooked radian carries out stretch bending operation, when such stretch bending each groove two sides the first filling
Part part can deform and adjust the curved interior of hollow material and the stress of curved outside, improve hollow material resistance and cut
The ability of face deformation is influenced with reducing bending process to the size in hollow material section, prevents the stretch bending section of hollow material from sending out
Raw distortion, and the first filling member part of each groove two sides can deform when core pulling is conducive to filling block from after bending
The step of extracting out in hollow material, simplifying hollow material bending forming, improves production efficiency.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the existing structural schematic diagram for filling out the bent section that core technology processes；
Fig. 2 is the Section A-A schematic diagram of Fig. 1；
Fig. 3 is the structural schematic diagram of the bent section of existing product technical requirements；
Fig. 4 is the section B-B schematic diagram of Fig. 3；
Fig. 5 is the structural schematic diagram of filling block provided in an embodiment of the present invention；
Fig. 6 fills out core status diagram for Fig. 5's；
Fig. 7 is that the filling block of Fig. 5 fills out structural schematic diagram of the core after hollow material；
Fig. 8 is the filling block and hollow material sectional view after bending of Fig. 6 assembly；
Fig. 9 is the core pulling status diagram of Fig. 8；
Figure 10 is that the pumping that pumping provided in an embodiment of the present invention fills out core apparatus fills out core working state figure.
Wherein, each appended drawing reference in figure:
100- filling block；11- groove；The first filling member of 12-；121- first through hole；The second filling member of 13-；131- second
Through-hole；14- fixing piece；The first fastener of 15-；The second fastener of 16-；
200- pumping fills out core apparatus；21- pedestal；22- hydraulic station；23- fills out core oil cylinder；24- core pulling oil cylinder；25- first is fixed
Device；251- filling bracket；252- fills collet；26- core pulling collet；27- connector；28- fills out core operation handle；29- core pulling
Operation handle；
300- hollow material；The gap 4-.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that it can when element is referred to as " being fixed on " or " being set to " another element and similar term
With directly on the other element or indirectly on another element.When an element be known as " being connected to " another
Element, it can be directly to another element or be indirectly connected on another element.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.
Referring to Fig. 5, existing to provided by the present invention for assisting the filling block of hollow material bending forming to be illustrated.With
It is equipped in the filling block 100 of auxiliary 300 bending forming of hollow material, including the first filling member 12, the side of the first filling member 12
Multiple grooves 11, each groove 11 are spaced apart along the extending direction of the first filling member 12, and the two sides of each groove 11 run through first
Filling member 12, it is seen from figure 1 that the upside of the first filling member 12 is arranged in each groove 11, and the front and rear sides of groove 11 are run through
First filling member 12.
Provided by the present invention for assisting the filling block of hollow material bending forming to fill out compared with prior art first
Multiple grooves 11 are arranged in the side for filling part 12, which is filled out core into hollow material 300 and makes groove 11 positioned at hollow
The inside (please referring to Fig. 8) of the crooked radian of profile 300, then carry out stretch bending operation, when stretch bending each 11 two sides of groove first are filled out
Filling 12 part of part can deform and adjust the curved interior of hollow material 300 and the stress of curved outside, be hollow material
300 provide the ability for resisting section deformation, are influenced, are prevented hollow with reducing bending process to the size in 300 section of hollow material
The stretch bending section of profile 300 is distorted, while the setting of groove 11 is also helped filling block 100 from hollow type after bending
Extracted out in material 300, raising fill out core efficiency and core pulling efficiency, can reuse, save 300 bending forming of hollow material at
This.
Further, referring to Fig. 5, as the filling block provided by the present invention for assisting hollow material bending forming
A kind of specific embodiment further includes the second filling member 13 set on one end of the first filling member 12, and the second filling member 13 is rigid
Property part.When filling out core in this way, rigid member can be pushed, and filling block 100 is squeezed in hollow material 300, please refers to Fig. 6；Hollow type
The second filling member 13 is clamped after 300 bending forming of material and is pulled out outward, filling block 100 can be extracted out from hollow material 300, please be join
Read Fig. 9；Core and core pulling efficiency are filled out in raising, and the second filling member 13 can also determine one section of profile for needing to keep straight configuration
Shape prevents straight section by stretch bending.Specifically, the second filling member 13 can be made of steel, such as 45# steel.
Further, as a kind of specific reality provided by the present invention for assisting the filling block of hollow material bending forming
Mode is applied, the first filling member 12 is made of engineering plastics.It not only improves and mitigates 100 mass of filling block, and there is rigid big, creep
The characteristics of small and high mechanical strength, can equalisation hollow profile 300 be bent when stress, be better protected from hollow material 300
Stretch bending cross section distortion, long service life can safely and reliably carry out filling out core and core pulling operation.
Specifically, the first filling member 12 is by ultrahigh molecular weight polyethylene at, ultra-high molecular weight polyethylene, preferred molecular weight
Reach 7,000,000 or more ultra-high molecular weight polyethylene.Ultra-high molecular weight polyethylene has good wearability and mechanical strength, both
Be conducive to improve the ability for the stretch bending cross section distortion for preventing hollow material 300, and can be grown under the action of bearing larger pulling force
Phase uses, and extends the service life of filling block 100.
Further, referring to Fig. 5, as the filling block provided by the present invention for assisting hollow material bending forming
A kind of specific embodiment, each groove 11 are arranged in parallel, and are conducive to stress when preferably balanced hollow material 300 is bent, more
The stretch bending cross section distortion of hollow material 300 is prevented well.
Further, referring to Fig. 5, as the filling block provided by the present invention for assisting hollow material bending forming
The depth of a kind of specific embodiment, each groove 11 is identical, is conducive to stress when preferably balanced hollow material 300 is bent,
It is better protected from the stretch bending cross section distortion of hollow material 300.
Further, referring to Fig. 5, as the filling block provided by the present invention for assisting hollow material bending forming
A kind of specific embodiment, size of each groove 11 on the extending direction of the first filling member 12 is identical, and between each groove 11 etc.
Away from setting, be conducive to stress when preferably balanced hollow material 300 is bent, the stretch bending for being better protected from hollow material 300 is cut
Area distortion.
Further, referring to Fig. 5, as the filling block provided by the present invention for assisting hollow material bending forming
A kind of specific embodiment further includes fixing piece 14, the first fastener 15 and the second fastener 16, one end of the first filling member 12
Equipped with shrinkage pool, the side of the first filling member 12 is equipped with the first through hole 121 of conducting shrinkage pool, and fixing piece 14 is embedded in shrinkage pool, the
One end of one fastener 15 passes through first through hole 121 and connect with fixing piece 14, and the second filling member 13 is equipped with the second through-hole
131, one end of the second fastener 16 passes through the second through-hole 131 and connect with fixing piece 14.
The first filling member 12 and the second filling member 13 are connected by fixing piece 14, and utilize the first fastener 15 and second
For fastener 16 in two different direction-locking fixing pieces 14, the connection of the first filling member 12 and the second filling member 13 is reliable, knot
Structure stability is good, can guarantee that filling block 100 bears the stress of different directions during filling out core, stretch bending and core pulling and loosen,
Damage.Second fastener 16 concretely hexagon socket head cap screw.
Wherein, the section of filling block 100 is designed according to the section of hollow material 300 to be filled, so that filling block 100
Gabarit is adapted to the interior exterior feature of hollow material 300 to be advisable.
It is illustrated referring to Fig. 10, now filling out core apparatus to pumping provided by the invention.Pumping fills out core apparatus 200, for completing
300 curved super-long structure process of hollow material fills out core and core pulling operation, including pedestal 21, pedestal 21 is equipped with hydraulic station
22, fill out core oil cylinder 23, core pulling oil cylinder 24, for fixed core to be filled out hollow material 300 the first fixed device 25, for fixing
The fixed device of second of hollow material 300 to core pulling and the filler for placing filling block 100 place position, fill out 23 He of core oil cylinder
Core pulling oil cylinder 24 is separately connected hydraulic station 22, and filler places position and is set to the first fixed device 25 and fills out between core oil cylinder 23, second
Connector 27 is equipped between fixed device and core pulling oil cylinder 24, one end of connector 27 connects core pulling oil cylinder 24, and the other end is used for
Connect the filling block 100 in the hollow material 300 of bending forming.
When filling out core operation, by the hollow material 300 of the first fixed fixed core to be filled out of device 25, filling block 100 is placed
Position is placed in filler, is pressed into hollow material 300 using the filling block 100 for filling out core oil cylinder 23, completes filling out for hollow material 300
Core；When core pulling operates, by the hollow material 300 of the second fixed stationary curved forming of device, by connector 27 and hollow material
Filling block 100 in 300 is fixed, extracts filling block 100 out using core pulling oil cylinder 24.As it can be seen that the pumping is filled out before core apparatus 200 is exclusively used in
That states filling block 100 fills out core or core pulling, can efficiently insert filling block 100 in straight material hollow material 300, can be efficient
Aforementioned filling block 100 is quickly extracted from curved material hollow material 300, substantially increases the effect of 300 bending forming of hollow material
Rate.When continuous production, core apparatus 200 is filled out using pumping and a product is carried out filling out core operation simultaneously, another product is carried out
Core pulling operation, the rapid batch metaplasia for capableing of bent section produce, and filling block 100 can be reused, securely and reliably, service life
It is long.
Further, referring to Fig. 10, filling out a kind of specific embodiment of core apparatus as pumping provided by the invention, first
Fixed device 25 includes the filling collet 252 of filling bracket 251 and the hollow material 300 for clamping core to be filled out.Utilize filling
Bracket 251 supports hollow material 300, can guarantee that the straight degree of core hollow material 300 to be filled out in order to fill out core operation, and is filled
Collet 252 clamps hollow material 300, can position hollow material 300, core oil cylinder 23 is filled out in guarantee can be smoothly by filling block
In 100 indentation hollow materials 300, the transfer of the hollow material 300 after also conveniently filling out core is easy to use.
Further, referring to Fig. 10, filling out a kind of specific embodiment of core apparatus as pumping provided by the invention, second
Fixed device includes the core pulling collet 26 for clamping the hollow material 300 to core pulling, guarantees that core pulling oil cylinder 24 can smoothly be taken out
Filling block 100 in the hollow material 300 of bending forming out, the transfer of the hollow material 300 after also facilitating core pulling, user
Just.
Wherein, it fills collet 252 and core pulling collet 26 is preferably stock vice.
Further, referring to Fig. 10, filling out a kind of specific embodiment of core apparatus as pumping provided by the invention, for side
Just operation can be arranged on pedestal 21 for control fill out core oil cylinder 23 fill out core operation fill out core operation handle 28 and for control pumping
The core pulling operation handle 29 of core operation.
Now the bending forming method of hollow material provided by the invention is illustrated.The bending forming side of hollow material
Method includes the following steps:
It fills out core: filling block 100 is packed into hollow material 300；Referring to Fig. 6, the arrow in Fig. 6 is to fill out core direction.
Stretch bending: stretch bending hollow material 300, and groove 11 is located at the inside of crooked radian；Please refer to Fig. 8；
Core pulling: the filling block 100 in extraction hollow material 300；Referring to Fig. 9, the arrow in Fig. 9 is core pulling direction.
Filling block above-mentioned is utilized compared with prior art in the bending forming method of hollow material provided by the invention
100 fill out core, and inside that retaining groove 11 is located at crooked radian carries out stretch bending operation, when such stretch bending each 11 two sides of groove the
One filling member, 12 part can deform and adjust the curved interior of hollow material 300 and the stress of curved outside, to reduce
Bending process influences the size in 300 section of hollow material, and the stretch bending section of hollow material 300 is prevented to be distorted, and core pulling
When each 11 two sides of groove 12 part of the first filling member can deform, be conducive to filling block 100 from hollow type after bending
The step of extracting out in material 300, simplifying 300 bending forming of hollow material, improves production efficiency.
Further, referring to Figure 7 together and Fig. 8, bending forming method as hollow material provided by the invention
A kind of specific embodiment has gap between the inner wall of hollow material 300 and the outer wall of filling block 100 when completing to fill out core step
4,12 part of the first filling member that 4 one side of preset clearance is conducive to each 11 two sides of groove, which can deform, carrys out equalisation hollow type
On the other hand the stress of material 300 is conducive to efficiently complete to fill out core operation and core pulling operation.By taking square hollow profile 300 as an example, fill out
It fills block 100 and also selects square structure accordingly, filling block 100 is unilateral can be reserved between 300 corresponding side inner wall of hollow material
The gap 4 of 0.25-0.35mm, the gap 4 of preferably 0.3mm.
Wherein, filling out core step and core pulling step can be used aforementioned pumping and fills out core apparatus 200 to complete.
Core apparatus 200, which is filled out, using aforementioned pumping carries out the step of filling out core are as follows:
First with the hollow material 300 of the first fixed fixed core to be filled out of device 25, and filling block 100 is placed on filler
It places on position, the oil cylinder axis that core oil cylinder 23 is filled out in control is mobile towards the first fixed device 25, and filling block 100 is pressed into hollow material
In 300 cavity.
The step of core apparatus 200 carries out core pulling is filled out using the pumping of aforementioned schemes are as follows:
First with the second fixed fixed curved hollow material 300 of device, filling block is connected using connector 27
100, the direction for making the oil cylinder axis of core pulling oil cylinder 24 be directed away from the second fixed device is mobile, by filling block 100 from hollow material
Extraction in 300.
Wherein, existing stretch bending device can be used to complete in stretch bending step.
The preferably bending forming method of hollow material are as follows:
Fill out core: referring to Fig. 10, straight material hollow material 300 is placed on 251 filler material frame of filling bracket and is utilized first
It is fixed to fill collet 252, filling block 100 is placed on filler and is placed on position, the corresponding straight material hollow material 300 of the first filling member 12
End face, the second filling member 13 is corresponding to fill out core oil cylinder 23, and operation fills out core operation handle 28, makes the oil cylinder axis direction for filling out core oil cylinder 23
Filling bracket 251 is mobile, filling block 100 is pressed into the cavity of hollow material 300, the arrow in Figure 10 to the left, which is shown, fills out core
Direction；
Stretch bending: it has filled out the good hollow material of core and has been processed by stretch bending device, reached corresponding crooked radian；
To achieve the effect that reduce hollow material stretch bending cross section distortion, the side for opening up groove 11 of filling block 100 is certain
It will be towards the medial surface of finished product radian；
Core pulling: referring to Fig. 10, to when curved hollow material 300 carries out core pulling, hollow material is placed on pumping and is filled out
The core pulling side of core apparatus 200 gently clamps bending hollow profiled ends using core pulling collet 26 and performs fixation, using even
Fitting 27 connects the second filling member 13 and core pulling oil cylinder 24, operates core pulling operation handle 29, makes the oil cylinder axis of core pulling oil cylinder 24
The direction for being directed away from core pulling collet 26 is mobile, filling block 100 is extracted out, the arrow in Figure 10 to the right shows core pulling direction.
So complete the stretch bending process of single product.
Wherein, hollow material 300 can be aluminium alloy pipe.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. for assisting the filling block of hollow material bending forming, including the first filling member, which is characterized in that first filling
The side of part is equipped with multiple grooves, and each groove is spaced apart along the extending direction of first filling member, each groove
Two sides run through first filling member.
2. as described in claim 1 for assisting the filling block of hollow material bending forming, which is characterized in that further include being set to
Second filling member of one end of first filling member, second filling member are rigid member.
3. as claimed in claim 1 or 2 for assisting the filling block of hollow material bending forming, which is characterized in that described the
One filling member is made of engineering plastics.
4. the filling block for being used to assist hollow material bending forming stated such as claim 3, which is characterized in that the engineering plastics
For ultra-high molecular weight polyethylene.
5. as claimed in claim 2 for assisting the filling block of hollow material bending forming, which is characterized in that further include fixing
One end of part, the first fastener and the second fastener, first filling member is equipped with shrinkage pool, and the side of first filling member is set
There is the first through hole that the shrinkage pool is connected, the fixing piece is embedded in the shrinkage pool, and one end of first fastener passes through
The first through hole is simultaneously connect with the fixing piece, and second filling member is equipped with the second through-hole, second fastener
One end passes through second through-hole and connect with the fixing piece.
6. the bending forming method of the hollow material using filling block of any of claims 1-5, which is characterized in that
Include the following steps:
It fills out core: the filling block is packed into hollow material；
Stretch bending: hollow material described in stretch bending, and the groove is located at the inside of crooked radian；
Core pulling: the filling block in the hollow material is extracted out.
7. the bending forming method of hollow material as claimed in claim 6, which is characterized in that fill out core step when institute described in completion
Stating has gap between the inner wall of hollow material and the outer wall of the filling block.
8. the bending forming method of hollow material as claimed in claim 6, which is characterized in that prepare to take out and fill out core apparatus, pass through
The pumping fills out core apparatus to complete described to fill out core step and the core pulling step.
9. the bending forming method of hollow material as claimed in claim 8, which is characterized in that the pumping fills out core apparatus, including
Pedestal, the pedestal be equipped with hydraulic station, fill out core oil cylinder, core pulling oil cylinder, for fixed core to be filled out the hollow material the
One fixed device fixes device and for placing filling out for the filling block for the second of the fixed hollow material to core pulling
Material places position, described to fill out core oil cylinder and the core pulling oil cylinder is separately connected the hydraulic station, the filler place position be set to it is described
First fixed device and it is described fill out between core oil cylinder, be equipped with connector between the described second fixed device and the core pulling oil cylinder,
One end of the connector connects the core pulling oil cylinder, and the other end is used to connect the filling block in the hollow material of bending forming.
10. the bending forming method of hollow material as claimed in claim 9, which is characterized in that described to fill out core step are as follows: utilize
The hollow material of the described first fixed fixed core to be filled out of device, and the filling block is placed on the filler and places position
On, the oil cylinder axis that core oil cylinder is filled out described in control is mobile towards the described first fixed device, the filling block is pressed into described hollow
In the cavity of profile；
The core pulling step are as follows: using the described second fixed fixed curved hollow material of device, utilize the connection
Part connection fills out core in the filling block in the hollow material, and the oil cylinder axis for controlling the core pulling oil cylinder is directed away from described second and consolidates
The direction for determining device is mobile, and the filling block is extracted out from the hollow material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861609.1A CN109530506A (en) | 2017-09-21 | 2017-09-21 | The bending forming method of filling block and hollow material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861609.1A CN109530506A (en) | 2017-09-21 | 2017-09-21 | The bending forming method of filling block and hollow material |
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| Publication Number | Publication Date |
|---|---|
| CN109530506A true CN109530506A (en) | 2019-03-29 |
Family
ID=65828033
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710861609.1A Pending CN109530506A (en) | 2017-09-21 | 2017-09-21 | The bending forming method of filling block and hollow material |
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| CN (1) | CN109530506A (en) |
Cited By (1)
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| CN113107938A (en) * | 2021-04-02 | 2021-07-13 | 桂林理工大学 | Bendable sleeve and telescopic structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107938A (en) * | 2021-04-02 | 2021-07-13 | 桂林理工大学 | Bendable sleeve and telescopic structure |
| CN113107938B (en) * | 2021-04-02 | 2022-05-06 | 桂林理工大学 | Bendable sleeve and telescopic structure |
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Application publication date: 20190329 |