CN109954773A - A kind of mental section multiple spot Three Dimensional Thermal stretch wrap forming equipment - Google Patents
A kind of mental section multiple spot Three Dimensional Thermal stretch wrap forming equipment Download PDFInfo
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- CN109954773A CN109954773A CN201910358577.2A CN201910358577A CN109954773A CN 109954773 A CN109954773 A CN 109954773A CN 201910358577 A CN201910358577 A CN 201910358577A CN 109954773 A CN109954773 A CN 109954773A
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- 230000003340 mental effect Effects 0.000 title claims abstract description 22
- 238000005452 bending Methods 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- 238000004321 preservation Methods 0.000 claims description 29
- 238000012545 processing Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 230000009123 feedback regulation Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 102000008579 Transposases Human genes 0.000 claims 1
- 108010020764 Transposases Proteins 0.000 claims 1
- 229910001069 Ti alloy Inorganic materials 0.000 abstract description 7
- 238000009529 body temperature measurement Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/04—Bending rods, profiles, or tubes over a movably-arranged forming menber
-
- 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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
- B21D7/162—Heating equipment
-
- 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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
- B21D7/165—Cooling equipment
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Abstract
For the Three Dimensional Thermal stretch wrap forming for solving the problems, such as the difficult-to-deformation materials such as titanium alloy, the present invention devises a kind of mental section multiple spot Three Dimensional Thermal stretch wrap forming equipment and process, it includes workbench, incubator, control cabinet, cell cube, adjusts shape hydraulic cylinder；Wherein, incubator is installed on workbench, and cell cube is connect by T-type sliding block with workbench, and shape hydraulic cylinder is adjusted to be installed on incubator top cover, and control cabinet is mounted in front of incubator.The method that the present invention uses multi-point forming, solve that existing hot-drawn o ing equipment craft flexibility is poor, forming accuracy is low and cannot achieve the problems such as 3 D complex is bent, realize the Three Dimensional Thermal stretch wrap forming of the difficult-to-machine materials profile such as titanium alloy, and pass through thermocouple temperature measurement to shape bending in the process to temperature progress real-time control, it can be achieved that the Accurate Shaping of flexible, efficient, the inexpensive Three Dimensional Thermal stretch bending of difficult deformable metal profile.
Description
Technical field
The invention belongs to mental section three-dimensional bending forming technique field, in particular to a kind of mental section multiple spot Three Dimensional Thermal
Stretch wrap forming equipment and process can be used for the plastic deformation difficulty such as titanium alloy, high-strength steel, high strength alumin ium alloy, magnesium alloy
The Three Dimensional Thermal stretch wrap forming of metal material.
Background technique
Mental section three-dimensional bending structural member have materials save, the service life is long, overall performance is good, from heavy and light, structural strength it is high,
The design features such as aerodynamic performance is good, geometric modeling is smooth.Nowadays more and more three-dimensional bending structural members are applied to rail
In the manufacturing process of the mechanical equipments such as road car, aircraft, automobile.Stretch bending structural member can effectively improve the safety of mechanical equipment
Property, reliability, handling and fuel economy, are currently a kind of advanced lightweight structure.Machinery production manufacture field at present
It is required that the process of part reduces tooling, process and working hour as far as possible, production cost is reduced, improving production efficiency can effectively mention
High security, handling and fuel economy, has a extensive future.However, since the difficult material of the plastic deformation such as titanium alloy is normal
Temperature is lower, and resistance of deformation is big, plasticity is poor, difficulty of processing is high and the complicated structure feature of large span entirety three-dimensional bending part, right
The three-dimensional bending forming of this kind of difficult-to-deformation material profile structure part is very difficult.The three-dimensional bending of existing mental section forms
Technique has been unable to satisfy the three-dimensional bending forming of the big alloy of this intensity.
For the processing of such difficult-to-deformation material, by taking titanium alloy as an example, the mode generallyd use at present from resistance heating is heated
Carry out Plastic Forming processing again afterwards；However, hot-drawn o ing is related to the effect of the multi- scenarios method under hot conditions, exists and ask as follows
Topic: first is that Forming Equipments and method are concentrated mainly under the hot-drawn o ing and normal temperature condition of two-dimentional warp architecture part at present
Simple three-dimensional bending forming, it is relatively fewer for the research of the hot-drawn o ing method of complex three-dimensional stretch wrap forming part, it does not open also
Issue can industrialization technological equipment；Second is that forming generally uses unitary mould, the flexibility of forming technology is poor, and mould volume is big
And it is heavy, a kind of part corresponds to a set of dedicated mould development, the higher cost and difficulty that repairs a die is big；Third is that with bending dimension
Increase and thermal field coupling, make profile plastic behavior always generate violent inhomogeneous deformation, work as deformable body
After the unloading of middle flexible deformation, the defects of biggish resilience can be generated.
For the Three Dimensional Thermal stretch wrap forming for solving the problems, such as the difficult-to-deformation materials such as above-mentioned titanium alloy, it is more to develop a kind of mental section
Point Three Dimensional Thermal stretch wrap forming equipment and process, forming use multiparty control, be able to achieve mental section it is flexible, efficient, low at
This three-dimensional bending Accurate Shaping.
Summary of the invention
One, goal of the invention: the purpose of the present invention is to provide a kind of mental section multiple spot Three Dimensional Thermal stretch wrap forming equipment and
Process, to solve, existing hot-drawn o ing equipment craft flexibility is poor, at high cost, forming accuracy is low and cannot achieve three-dimensional
The problems such as complicated bend, and real-time control is carried out to temperature to during shape bending by thermocouple temperature measurement, realize difficult deformation
The Accurate Shaping of flexible, efficient, the inexpensive Three Dimensional Thermal stretch bending of mental section.
Two, technical solution: the present invention provides a kind of mental section multiple spot Three Dimensional Thermal stretch wrap forming equipments, and feature exists
In: this equipment includes workbench 1, incubator 4, control cabinet 11, the tune shape hydraulic cylinder 7 of cell cube 17；Their position connection relationship
As follows: incubator 4 is installed on workbench 1, and cell cube 17 is connect by T-type sliding block 22 with workbench 1, and shape hydraulic cylinder 7 is adjusted to pacify
Loaded on incubator top cover 9, control cabinet 11 is mounted on 4 front of incubator.
The workbench 1, it is characterized in that: opening several T-slots 25 on workbench 1, cell cube 17 passes through T-type sliding block 22
It is mounted in T-slot 25.The usage quantity of cell cube 17 is determined according to 6 length of profile in forming process；Wherein T-type sliding block 22 with
T-type slider connecting plate 21 and traveller 13 are integrated, it is ensured that service performance in hot environment.Cell cube 17 can be in water
It square is moved forward and backward upwards and to carry out tune shape, adjust the M10 bolt 35 that can be tightened after the completion of shape on T-type sliding block 22, while tightening M6 spiral shell
The fixed position for adjusting shape hydraulic cylinder 7 of bolt 36, is completely fixed in cell cube 17 in incubator 1.In the three-dimensional bending process of profile
In the cooling water circulated is passed through into runner 30, make unloading when 4 temperature of incubator quickly reduce and prevent stretch bending process
Middle 1 temperature of workbench is excessively high.
The incubator 4, it is characterized in that: incubator front cover 10 can be opened with incubator top cover 9, to facilitate profile 6
Handling；It is provided with several slots on incubator top cover 9, is fitted with above each slot and adjusts shape hydraulic cylinder 7, each tune shape hydraulic cylinder 7
A corresponding cell cube 17.Each slot has corresponding cover board 5, and the length of cover board 5 is adjustable.It is punched on each cover board 5
And thermocouple 8 is installed respectively and incubator side wall 31 is equipped with thermocouple 8；It is real to the temperature of multiple points in incubator 4
When monitoring and adjust.Heat preservation silk 32 is also equipped with inside incubator 4, wherein heat preservation silk 32 is preheated to incubator 4.?
Incubator side wall 31 is also equipped with heat holding curtain 34, and elastic device 3 is connect with support plate 2, and heat holding curtain 34 is connected by elastic device 3
It connects, contacts 34 moment of heat holding curtain with profile 6, reduce scattering and disappearing for heat.
The cell cube 16 is mounted in T-slot 25, mold it is characterized in that: the design of 13 bottom of traveller has T-type sliding block 22
Pedestal 14 is connect with traveller 13.Mold rotating seat 15 is connect with mold base 14 by four cylindrical structures 18, and multiple spot mold can be made
16 rotate a certain angle in vertical plane.Multiple spot mold 16 is connect by straight pin 19 with mold rotating seat 15, and circle is passed through
Pin 19 connects, and multiple spot mold 16 can be made to turn an angle in the horizontal plane.3/4ths are provided with above multiple spot mold 16
Spherical sliding slot 20, the position of multiple spot mold 16 in vertical plane can accurately be fixed by adjusting shape hydraulic cylinder 7 to connect with multiple spot mold 16.
Wherein multiple spot mold 16 can be rotated around mold rotating seat 15, and mold rotating seat 15 can be rotated around mold base 14；Purpose is to make
Profile is bonded preferably with mold in profile forming process, keeps the forming accuracy of profile 6 higher.
The control cabinet 11, it is characterized in that: control cabinet is control box body 26 and profile heater switch 27, thermocouple
Circuit switching 28 and heat preservation silk circuit switching 29 form.Entire control cabinet 11 is controllable type by control profile heater switch 27
Material 6 is connect with control cabinet 11 by cable 24 from the power on/off in resistance heating process, profile 6, and profile heater switch 27 controls electricity
The on-off of cable 24.Control cabinet 11 is connect by thermocouple connecting cable 23 with thermocouple 8, and the temperature that thermocouple 8 measures can controlled
Then cabinet 11 processed is read can carry out feedback regulation to 4 internal temperature of incubator, this circuit is controlled by Thermocouple Circuit switch 28；It is logical
It crosses heat preservation silk connecting cable 33 and connect the preheating insulation that can control entire incubator 4 with heat preservation silk 32, this circuit is added by heat preservation silk
Thermal switch 29 controls；Make to keep the forming effect of profile 6 more preferable in temperature constant state as far as possible inside cabinet 4.
Workflow of the invention is
The first step opens incubator front cover 10 according to the curvature of profile 6 and carries out presetting shape to cell cube 17.
Profile 6 is passed through incubator 4 by side openings by second step, and 6 both ends of profile are placed in clamp 12, pass through folder
Pincers 12 clamp profile 6.Adjustment 12 position of clamp keeps 6 midpoint of profile and 15 die face of temporary location mould tangent, closes incubator
Front cover 10 connects cable 24 at 6 both ends of profile, opens profile heater switch 27, opens profile 6 from resistance heating, by adjusting function
Rate, making profile 6, temperature rapid increase to predetermined temperature.Reach predetermined temperature and disconnects the power supply for being added in 6 both ends of profile later.Then
Heat preservation silk circuit switching 29 is opened, heat preservation silk 32 starts to preheat cabinet 4, and then regulation power makes temperature in incubator 4
Rise rapidly to predetermined temperature.
Third step is bent profile 6 in the horizontal plane by the work of clamp 12, completes after profile 6 completes mold
The two-dimentional stretch bending of profile.Then the movement for controlling 7 piston rod of tune shape hydraulic cylinder on incubator top cover 9 makes mold 16 hang down
Histogram moves upwards, and mold 16, which drives profile 6 to complete plastic deformation in vertical direction, makes profile complete three-dimensional bending.Entire
Heat holding curtain 34 is bonded with profile 6 always under the action of elastic device 3 during stretch bending reduces dissipating for the heat in cabinet 4 to the greatest extent
It loses.The excessively high cooling water that circulation is passed through in the runner 30 of workbench 1 of temperature of workbench 1 in order to prevent during this.
4th step is closed heat preservation power supply, is then beaten after profile 6 is fully formed after keeping the temperature a period of time by technique requirement
It opens incubator front cover 10 and unclamps the unloading profile 6 of clamp 12 after profile 6 is cooling.
5th step compares the profile 6 after processing with target profile, if meeting required precision, process finishing, if not
Meet required precision, adjust 12 motion profile of clamp, reduces curved rate, or extend the soaking time after forming, until plus
Work obtains qualified molded part.
6th step produces the part in batches.
From the above mentioned, the insoluble problem of traditional stretch bending process that the present invention solves is as follows:
(1) multiple spot mold is used, the flexible bending forming of large-size complex-cross-section shape thin-wall section structural member may be implemented, and
By tune shape multiple spot mold envelope shape, it can be achieved that the processing of profile different geometries in section of the same race, effectively reduces life
Produce cost
(2) carrying out control to temperature in forming process realizes the stabilization of temperature during hot-drawn o ing, realizes multi-point mould
The automation tune shape of tool, reduces artificial intensity, improves production efficiency and forming accuracy.
(3) by the stabilization of control forming temperature, molding rate, thus decreasing rebound, improve profile forming accuracy and
Structure stability.
(4) the Three Dimensional Thermal stretch bending of the hard alloy such as titanium alloy, high strength alumin ium alloy, magnesium alloy is realized.
Detailed description of the invention
A kind of Fig. 1: mental section multiple spot Three Dimensional Thermal stretch wrap forming equipment axonometric drawing.
A kind of Fig. 2: internal axonometric drawing of mental section multiple spot Three Dimensional Thermal stretch wrap forming equipment.
Fig. 3: a kind of mental section multiple spot Three Dimensional Thermal stretch wrap forming equipment removes front cover shaft side figure.
Fig. 4: local axis side view.
Fig. 5: cell cube explosive view.
Fig. 6: control cabinet axis side view.
Number explanation is as follows in figure: 1, workbench；2, elastic device support base；3, elastic device；4, incubator；5, it covers
Plate；6, profile；7, shape hydraulic cylinder is adjusted；8, thermocouple；9, incubator top cover；10, incubator front cover；11, control cabinet；12, clamp；
13, traveller；14, mold base；15, mold rotating seat；16, mold；17, cell cube；18, four cylindrical structure；19, straight pin；
20,3/4ths spherical sliding slot；21, T-type slider connecting plate；22, T-type sliding block；23, thermocouple connecting cable；24, profile heats
Cable；25, T-type sliding slot；26, switch board casing；27, profile heater switch；28, thermocouple power-on switch；29, silk circuit is kept the temperature
Switch；30, runner；31, incubator side wall；32, silk is kept the temperature；33, silk is kept the temperature；34, heat holding curtain；35, M10 bolt；36, M6 spiral shell
Bolt.
Specific embodiment
A kind of mental section multiple spot Three Dimensional Thermal stretch wrap forming equipment, it is characterised in that: this equipment includes workbench 1, heat preservation
Case 4, control cabinet 11, cell cube 17 adjust shape hydraulic cylinder 7；Their position connection relationship is as follows: incubator 4 is installed on workbench 1
On, cell cube 17 is connect by T-type sliding block 22 with workbench 1, adjusts shape hydraulic cylinder 7 to be installed on incubator top cover 9, control cabinet 11
It is mounted on 4 front of incubator.
As shown in Figure 1, it is characterized in that: opening several T-slots 25 on workbench 1, cell cube 17 passes through the workbench 1
T-type sliding block 22 is mounted in T-slot 25.The usage quantity of cell cube 17 is determined according to 6 length of profile in forming process；Wherein T
Type sliding block 22 is integrated with T-type slider connecting plate 21 and traveller 13, it is ensured that service performance in hot environment.Unit
Body 17 can be moved forward and backward in the horizontal direction carries out tune shape, adjusts shape that can tighten the M10 bolt 35 on T-type sliding block 22 after the completion, together
When tighten the fixed position for adjusting shape hydraulic cylinder 7 of M6 bolt 36 and be completely fixed in cell cube 17 in incubator 1.In profile
The cooling water circulated is passed through into runner 30 during three-dimensional bending, when making to unload 4 temperature of incubator quickly reduce and
Prevent 1 temperature of workbench during stretch bending excessively high.
The incubator 4 such as Fig. 1, shown in Fig. 3, it is characterized in that: incubator front cover 10 can be opened with incubator top cover 9,
To facilitate the handling of profile 6；It is provided with several slots on incubator top cover 9, is fitted with above each slot and adjusts shape hydraulic cylinder 7, often
The corresponding cell cube 17 of a tune shape hydraulic cylinder 7.Each slot has corresponding cover board 5, and the length of cover board 5 is adjustable.Every
It is punched on a cover board 5 and installs thermocouple 8 respectively and incubator side wall 31 is equipped with thermocouple 8；To more in incubator 4
The temperature real time monitoring of a point and adjusting.Heat preservation silk 32 is also equipped with inside incubator 4, wherein heat preservation silk 32 is to heat preservation
Case 4 is preheated.It is also equipped with heat holding curtain 34 in incubator side wall 31, elastic device 3 is connect with support plate 2, and heat holding curtain 34 is logical
The connection of elastic device 3 is crossed, contacts 34 moment of heat holding curtain with profile 6, reduces scattering and disappearing for heat.
The cell cube 17 as shown in Figure 4, Figure 5, it is characterized in that: the design of 13 bottom of traveller has T-type sliding block 22, is mounted on T
In type groove 25, mold base 14 is connect with traveller 13.Mold rotating seat 15 and mold base 14 are connected by four cylindrical structures 18
It connects, multiple spot mold 16 can be made to rotate a certain angle in vertical plane.Multiple spot mold 16 is rotated by straight pin 19 and mold
Seat 15 connects, and is connected by straight pin 19, multiple spot mold 16 can be made to turn an angle in the horizontal plane.On multiple spot mold 16
The spherical sliding slot 20 of Fang Kaiyou 3/4ths, multiple spot mold 16 can accurately be fixed vertical by adjusting shape hydraulic cylinder 7 to connect with multiple spot mold 16
Position in straight plane.Wherein multiple spot mold 16 can be rotated around mold rotating seat 15, and mold rotating seat 15 can be around mold base
14 rotations；Purpose is to make to be bonded profile preferably with mold in profile forming process, keeps the forming accuracy of profile 6 higher.
The control cabinet 11, it is characterized in that: control cabinet is control box body 26 and profile heater switch 27, thermocouple
Circuit switching 28 and heat preservation silk circuit switching 29 form.Entire control cabinet 11 is controllable type by control profile heater switch 27
Material 6 is connect with control cabinet 11 by cable 24 from the power on/off in resistance heating process, profile 6, and profile heater switch 27 controls electricity
The on-off of cable 24.Control cabinet 11 is connect by thermocouple connecting cable 23 with thermocouple 8, and the temperature that thermocouple 8 measures can controlled
Then cabinet 11 processed is read can carry out feedback regulation to 4 internal temperature of incubator, this circuit is controlled by Thermocouple Circuit switch 28；It is logical
It crosses heat preservation silk connecting cable 33 and connect the preheating insulation that can control entire incubator 4 with heat preservation silk 32, this circuit is added by heat preservation silk
Thermal switch 29 controls；Make to keep the forming effect of profile 6 more preferable in temperature constant state as far as possible inside cabinet 4.
Workflow of the invention is.
The first step opens incubator front cover 10 according to the curvature of profile 6 and carries out presetting shape to cell cube 17.
Profile 6 is passed through incubator 4 by side openings by second step, and 6 both ends of profile are placed in clamp 12, pass through folder
Pincers 12 clamp profile 6.Adjustment 12 position of clamp keeps 6 midpoint of profile and 15 die face of temporary location mould tangent, closes incubator
Front cover 10 connects cable 24 at 6 both ends of profile, opens profile heater switch 27, opens profile 6 from resistance heating, by adjusting function
Rate, making profile 6, temperature rapid increase to predetermined temperature.Reach predetermined temperature and disconnects the power supply for being added in 6 both ends of profile later.Then
Heat preservation silk circuit switching 29 is opened, heat preservation silk 32 starts to preheat cabinet 4, and then regulation power makes temperature in incubator 4
Rise rapidly to predetermined temperature.
Third step is bent profile 6 in the horizontal plane by the work of clamp 12, completes after profile 6 completes mold
The two-dimentional stretch bending of profile.Then the movement for controlling 7 piston rod of tune shape hydraulic cylinder on incubator top cover 9 makes mold 16 hang down
Histogram moves upwards, and mold 16, which drives profile 6 to complete plastic deformation in vertical direction, makes profile complete three-dimensional bending.Entire
Heat holding curtain 34 is bonded with profile 6 always under the action of elastic device 3 during stretch bending reduces dissipating for the heat in cabinet 4 to the greatest extent
It loses.The excessively high cooling water that circulation is passed through in the runner 30 of workbench 1 of temperature of workbench 1 in order to prevent during this.
4th step is closed heat preservation power supply, is then beaten after profile 6 is fully formed after keeping the temperature a period of time by technique requirement
It opens incubator front cover 10 and unclamps the unloading profile 6 of clamp 12 after profile 6 is cooling.
5th step compares the profile 6 after processing with target profile, if meeting required precision, process finishing, if not
Meet required precision, adjust 12 motion profile of clamp, reduces curved rate, or extend the soaking time after forming, until plus
Work obtains qualified molded part.
6th step produces the part in batches.
Claims (5)
1. a kind of mental section multiple spot Three Dimensional Thermal stretch wrap forming equipment, it is characterised in that: this equipment includes workbench 1, incubator
4, control cabinet 11, cell cube 17, tune shape hydraulic cylinder 7；Their position connection relationship is as follows: incubator 4 is installed on workbench 1
On, cell cube 17 is connect by T-type sliding block 22 with workbench 1, adjusts shape hydraulic cylinder 7 to be installed on incubator top cover 9, control cabinet 11
It is mounted on 4 front of incubator.
2. a kind of mental section multiple spot Three Dimensional Thermal stretch wrap forming equipment according to claim 1, the workbench 1 are special
Sign is: several T-slots 25 is opened on workbench 1, cell cube 17 is mounted in T-slot 25 by T-type sliding block 22, forming process
The usage quantity of middle cell cube 17 is determined according to 6 length of profile；Wherein T-type sliding block 22 and T-type slider connecting plate 21 and traveller
13 are integrated, it is ensured that service performance in hot environment；Cell cube 17 can be moved forward and backward in the horizontal direction and be adjusted
Shape adjusts shape that can tighten the M10 bolt 35 on T-type sliding block 22 after the completion, while tightening the fixed position for adjusting shape hydraulic cylinder 7 of M6 bolt 36
It sets, is completely fixed in cell cube 17 in incubator 1；It is passed through and circulates into runner 30 during the three-dimensional bending of profile
Cooling water, make unloading when 4 temperature of incubator quickly reduce and prevent 1 temperature of workbench during stretch bending excessively high.
3. a kind of mental section multiple spot Three Dimensional Thermal stretch wrap forming equipment according to claim 1, the incubator 4 are special
Sign is: incubator front cover 10 can be opened with incubator top cover 9, to facilitate the handling of profile 6；If being provided on incubator top cover 9
Dry slot, each slot top, which is fitted with, adjusts shape hydraulic cylinder 7, the corresponding cell cube 17 of each tune shape hydraulic cylinder 7, each slot
There is corresponding cover board 5, the length of cover board 5 is adjustable；It is punched on each cover board 5 and installs thermocouple 8, Yi Jibao respectively
Incubator side wall 31 is equipped with thermocouple 8；To the temperature real time monitoring and adjusting of multiple points in incubator 4；Inside incubator 4
It is also equipped with heat preservation silk 32, wherein heat preservation silk 32 is preheated to incubator 4；Heat holding curtain is also equipped in incubator side wall 31
34, elastic device 3 is connect with support plate 2, and heat holding curtain 34 is connected by elastic device 3, makes heat holding curtain in 6 forming process of profile
34 moment contacted with profile 6, reduced scattering and disappearing for heat.
4. a kind of mental section multiple spot Three Dimensional Thermal stretch wrap forming equipment according to claim 1, the cell cube 17 are special
Sign is: the design of 13 bottom of traveller has T-type sliding block 22, is mounted in T-slot 25, mold base 14 is connect with traveller 13；Mold rotation
Transposase 11 5 is connect with mold base 13 by four cylindrical structures 18, and mold 16 can be made to rotate a certain angle in vertical plane；
Multiple spot mold 16 is connect by straight pin 19 with mold rotating seat 15, is connected by straight pin 19, multiple spot mold 16 can be made in water
Rotation in surface certain angle；It is provided with 3/4ths spherical sliding slots 20 above multiple spot mold 16, adjusts shape hydraulic cylinder 7 and multi-point mould
16 connection of tool can accurately fix the position of multiple spot mold 16 in vertical plane；Wherein multiple spot mold 16 can be around mold rotating seat
15 rotations, mold rotating seat 15 can be rotated around mold base 14；Purpose is to make to make profile preferably and mould in profile forming process
Tool fitting, keeps the forming accuracy of profile 6 higher；The control cabinet 11, it is characterized in that: control cabinet is control 26 He of box body
Profile heater switch 27, Thermocouple Circuit switch 28 and heat preservation silk circuit switching 29 form, and entire control cabinet 11 passes through control type
Material heater switch 27 is controllable type material 6 from the power on/off in resistance heating process, and profile 6 is connected with control cabinet 11 by cable 24
It connecing, profile heater switch 27 controls the on-off of cable 24, and control cabinet 11 is connect by thermocouple connecting cable 23 with thermocouple 8,
The temperature that thermocouple 8 measures can control cabinet 11 read then can to 4 internal temperature of incubator carry out feedback regulation, this circuit by
Thermocouple Circuit switch 28 controls；Being connect by heat preservation silk connecting cable 33 with heat preservation silk 32 can control the pre- of entire incubator 4
Heat heat preservation, this circuit is controlled by heat preservation silk heater switch 29；Make the forming for making profile 6 inside cabinet 4 in temperature constant state as far as possible
Effect is more preferable.
5. a kind of mental section multiple spot Three Dimensional Thermal stretch wrap forming equipment according to claim 1, characterized in that in processing work
When part, can according to material adjust forming temperature and shaping rate, a kind of mental section multiple spot Three Dimensional Thermal stretch wrap forming technique,
It is characterized in:
The first step opens incubator front cover 10 according to the target shape of profile 6 and carries out presetting shape to cell cube 17；
Profile 6 is passed through incubator 4 by side openings by second step, and 6 both ends of profile are placed in clamp 12, pass through clamp 12
Clamp profile 6；Adjustment 12 position of clamp keeps 6 midpoint of profile and 15 die face of temporary location mould tangent, closes incubator front cover
10, cable 24 is connected at 6 both ends of profile, opens profile heater switch 27, profile 6 is opened from resistance heating, by regulation power, makes
Temperature rapid increase for profile 6 to predetermined temperature, reaches predetermined temperature and disconnects the power supply for being added in 6 both ends of profile later；Then it opens
Silk circuit switching 29 is kept the temperature, heat preservation silk 32 starts to preheat cabinet 4, and then regulation power keeps temperature in incubator 4 quick
It is increased to predetermined temperature；
Third step is bent profile 6 in the horizontal plane by the work of clamp 12, completes type after profile 6 completes mold
The two-dimentional stretch bending of material；Then the movement for controlling 7 piston rod of tune shape hydraulic cylinder on incubator top cover 9, makes mold 16 in Vertical Square
It moves upwards, mold 16, which drives profile 6 to complete plastic deformation in vertical direction, makes profile complete three-dimensional bending；In entire stretch bending
Heat holding curtain 34 is bonded with profile 6 always under the action of elastic device 3 in the process reduces scattering and disappearing for the heat in cabinet 4 to the greatest extent,
The excessively high cooling water that circulation is passed through in the runner 30 of workbench 1 of temperature of workbench 1 in order to prevent during this；
4th step closes heat preservation power supply, then opens and protect after profile 6 is fully formed after keeping the temperature a period of time by technique requirement
Incubator front cover 10 unclamps clamp 12 after profile 6 is cooling and unloads profile 6；
5th step compares the profile 6 after processing with target profile, if meeting required precision, process finishing, if being unsatisfactory for
Required precision adjusts 12 motion profile of clamp, curved rate is reduced, or extend the soaking time after forming, until processing
To qualified molded part；
6th step produces the part in batches.
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| CN111331014A (en) * | 2020-04-10 | 2020-06-26 | 西北工业大学 | Airplane section self-resistance electric heating incremental free bending forming clamp and forming method |
| CN111922151A (en) * | 2020-08-31 | 2020-11-13 | 佛山市南燊金属型材制品有限公司 | Flexible die for two-dimensional and three-dimensional stretch bending forming of sectional material |
| CN112108543A (en) * | 2020-10-13 | 2020-12-22 | 长春工业大学 | Multi-point complex bending forming and shape correcting integrated device for multi-curvature section |
| CN112474933A (en) * | 2021-01-06 | 2021-03-12 | 长春工业大学 | Three-dimensional hot stretch bending forming device based on multi-degree-of-freedom mold structure |
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Application publication date: 20190702 |