CN210358714U - Independent heat-preservation multipoint three-dimensional electric heating drawing-pressing composite bending forming device - Google Patents
Independent heat-preservation multipoint three-dimensional electric heating drawing-pressing composite bending forming device Download PDFInfo
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- CN210358714U CN210358714U CN201920483561.XU CN201920483561U CN210358714U CN 210358714 U CN210358714 U CN 210358714U CN 201920483561 U CN201920483561 U CN 201920483561U CN 210358714 U CN210358714 U CN 210358714U
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- 238000005452 bending Methods 0.000 title claims abstract description 112
- 238000004321 preservation Methods 0.000 title claims abstract description 29
- 238000003825 pressing Methods 0.000 title claims abstract description 14
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 238000005485 electric heating Methods 0.000 title claims abstract description 12
- 238000009413 insulation Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 239000003921 oil Substances 0.000 claims description 90
- 238000010438 heat treatment Methods 0.000 claims description 22
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000010425 asbestos Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000007779 soft material Substances 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000010720 hydraulic oil Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 abstract 2
- 239000007769 metal material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
An independent heat-preservation multipoint three-dimensional electric heating drawing-pressing composite bending forming device mainly comprises a drawing-bending control arm, a support, a bottom plate, a basic body, a lifting oil cylinder, a bending oil cylinder, a die unit body, a temperature control cabinet, a power supply box and the like. The utility model adopts the vertical stretch bending and horizontal bending to realize the three-dimensional stretch bending forming of the section bar, and realizes the flexible forming of the three-dimensional bending part with complex geometric shape by adjusting the using amount of the basic body, the shape of the enveloping surface of the multi-point die and the number of the bending oil cylinder actuating mechanisms at the two ends of the basic body; by the designed independent insulation can structure, the temperature distribution on the section bar is more uniform, the energy consumption is reduced, and the forming precision is improved; in addition, the temperature in each heat preservation box is monitored in real time, so that the effective control of the temperature in the whole forming process is realized; the utility model discloses the mode that well adoption self-resistance heated heats difficult processing material metal section, has improved the plasticity of shaping work piece, has reduced the deformation resistance of work piece, has realized the accurate shaping of three-dimensional thermal stretch bending.
Description
Technical Field
The utility model relates to an independent heat retaining multiple spot three-dimensional electric heat draws-presses compound crooked forming device, and specifically speaking relates to a device that is used for section bar heat stretch bending such as railway passenger train, aircraft to take shape, belongs to the metal section bar stretch bending and takes shape technical field.
Background
The high-performance three-dimensional bending structural part of the metal section has the characteristics of high structural strength, smooth geometric modeling and excellent aerodynamic performance, so that the high-performance three-dimensional bending structural part is more and more applied to the manufacturing industry of high-end equipment such as airplanes, railway carriages, automobiles and the like. For example, a typical aluminum profile three-dimensional stretch-bending structural part is adopted in a train head frame of a high-speed rail CRH380 series in China. By three-dimensional bending of the metal profile is meant that the profile has bending deformations in two planes orthogonal to each other. For a metal material with good plasticity, such as aluminum alloy, accurate three-dimensional bending forming can be realized at room temperature. However, for materials which are difficult to process and have high yield stress at normal temperature, such as titanium alloy, high-strength steel and the like, the materials have large elastic deformation amount and large deformation resistance at normal temperature, and have serious rebound deformation after forming, so that the accurate plastic forming is very difficult, and the requirements of rapid development of modern high-end equipment manufacturing industry cannot be met.
For the precise plastic forming of the material difficult to deform, a hot forming mode is generally adopted for processing. Before the workpiece is formed, a self-resistance heating method is adopted to reduce the yield stress of the workpiece, improve the plasticity of the material, and prevent the heat loss in the forming process by using a closed heat preservation box.
However, the hot stretch bending forming device for metal profiles is mainly focused on two-dimensional plane forming, and due to the restriction of the complex structural features of the thin wall, the research on three-dimensional bending hot forming is relatively less, and a forming device for realizing three-dimensional hot stretch bending forming is not designed and developed. In addition, the existing hot stretch bending forming device adopts an integral heat insulation box, the workpiece and the die are completely covered in the heat insulation box, the heating space in the heat insulation box is large, the temperature is uneven, and the energy consumption is high.
In order to solve the problems existing in the hot stretch bending forming, the utility model provides an independent heat-preservation multipoint three-dimensional electric heating stretch-press composite bending forming device, which realizes the three-dimensional hot stretch bending forming of difficult-to-process metal materials. In addition, through the designed independent heat insulation box structure, the temperature distribution of each section of the sectional material is more uniform, and the energy consumption is reduced.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the utility model provides an independent heat-preservation multipoint three-dimensional electric heating drawing-pressing composite bending forming device, which is used for solving the problem of three-dimensional hot drawing bending forming of metal material profiles which are difficult to process, such as titanium alloy, high-strength steel and other materials.
The utility model provides an independent heat-preserving multipoint three-dimensional electric heating drawing-pressing composite bending forming device, which is characterized in that the three-dimensional drawing bending forming of sectional materials is realized by adopting a vertical drawing bending mode and a horizontal pressing bending mode, the using quantity of basic bodies, the shape of the enveloping surface of a multipoint mold and the quantity of the pressing bending oil cylinder actuating mechanisms at the two ends of the basic bodies can be adjusted according to the shape of target parts, and the flexible forming of complex geometric three-dimensional bending parts is realized; the independent heat preservation box structure is adopted, the temperature distribution on the section bar is more uniform, the energy consumption is reduced, the forming precision is improved, and in addition, the temperature in each heat preservation box is monitored in real time, so that the effective control of the temperature in the whole forming process is realized; the metal section bar which is difficult to process is heated by adopting a self-resistance heating mode, the plasticity of a formed workpiece is improved, the deformation resistance of the workpiece is reduced, and the accurate forming of three-dimensional thermal stretch bending is realized.
Drawings
FIG. 1: an axonometric drawing of a multipoint three-dimensional electric heating drawing-pressing composite bending forming device with independent heat preservation.
FIG. 2: the utility model discloses a basic body subassembly schematic structure.
FIG. 3: the utility model discloses a mould cell cube subassembly schematic structure.
FIG. 4: the utility model discloses a keep warm and cover subassembly schematic structure.
FIG. 5: the utility model discloses a connecting plate subassembly structure sketch map.
FIG. 6: the utility model discloses a multi-point die head body subassembly schematic structure.
FIG. 7: the utility model discloses a direction sliding block set spare schematic structure.
FIG. 8: the utility model discloses a rectangle tubular product structure sketch map.
FIG. 9: the utility model discloses a stretch bending control arm axonometric drawing.
FIG. 10: the utility model discloses a clamp base subassembly schematic structure.
FIG. 11: the utility model discloses a clamp slip table bracket component structure sketch map.
Wherein: 1. a stretch bending control arm, 2, a mould unit body, 3, a bending piston rod, 4, a bending oil cylinder, 5, a T-shaped groove, 6, a basic body, 7, a rectangular pipe, 8, a lifting oil cylinder, 9, a support, 10, a bottom plate, 11, a temperature control cabinet, 12, a power supply box, 13, a bending oil cylinder bolt, 14, a basic body support, 15, a unit body guide rail, 16, a lifting oil cylinder bolt, 17, a basic body guide key, 18, a soft material, 19, an asbestos plate, 20, a heat insulation cover, 21, a connecting plate, 22, a guide slide block, 23, a horizontal guide hole, 24, a multi-point mould head body, 25, a heat insulation cover bolt, 26, a heat insulation plate, 27, a resistance heating cable, 28, a resistance heating wire, 29, a stop block, 30, a rotating shaft, 31, a pin hole, 32, a limiting pin, 33, a temperature sensor, 34, a sensing wire, 35, a horizontal pin shaft, 36, a limiting groove, 37, a circular, The unit body comprises a T-shaped groove 39, insulating materials 40, a heating cable 41, a clamping oil cylinder 42, a bending oil cylinder piston rod 43, a bending oil cylinder 44, a clamp base 45, a clamp 46, a stretching oil cylinder piston rod 47, a stretching oil cylinder 48, a rotating oil cylinder piston rod 49, a clamp sliding table support 50, a rotating oil cylinder 51, a screw sliding groove 52, a sliding table support sliding groove 53, a nut 54, a hexagon screw 55, a hinge seat 56, a clamping groove 57 and a sliding guide key.
Detailed Description
The present embodiment will be described with reference to the drawings and examples.
An independent heat-preservation multipoint three-dimensional electric heating drawing-pressing composite bending forming device is shown in a figure 1-2 and is characterized by comprising a drawing-bending control arm (1), a support (9), a bottom plate (10), a basic body (6), a lifting oil cylinder (8), a bending oil cylinder (4), a mold unit body (2), a temperature control cabinet (11) and a power supply box (12). Their connection relationship is as follows: the basic bodies (6) are arranged in the T-shaped grooves (5) on the basic body bracket (14) through basic body guide keys (17) at two ends of the basic body bracket, and the specific using quantity of the basic bodies (6) is determined according to main parameters such as the length size, the section thickness and the like of the formed three-dimensional stretch bending; the bending oil cylinders (4) are arranged at two ends of a bracket (9) on the basic body (6), and the using positions of the bending oil cylinders (4) can be determined according to the shape of a target forming part, such as single-side use or double-side use; the mould unit body (2) is arranged on a unit body guide rail (15) and is pushed by a bending oil cylinder piston rod (3) to move in the horizontal direction; the lifting oil cylinder (8) is fixed on the bottom plate (10), and the end part of a piston rod of the lifting oil cylinder is fixedly connected with the basic body bracket (14) to control the ascending and descending of the basic body (6) in the vertical direction; the stretch bending control arms (1) are horizontally and symmetrically arranged on two sides of the bottom plate (10); and the three-dimensional stretch bending forming of the metal section is realized by controlling the linkage of each hydraulic oil cylinder of the forming equipment.
The stretch bending control arm (1) is characterized by mainly comprising a clamp base (44), a clamp (45), a clamp sliding table bracket (49), a hexagon screw (54), a nut (53), a stretching oil cylinder (47), a clamping oil cylinder (41) and a bending oil cylinder (43) as shown in figures 9-11. The clamp bases (44) are horizontally and symmetrically distributed on two sides of the bottom plate (10), and the distance between the two clamp bases (44) can be adjusted according to the length of a formed part; the bottom of the clamp sliding table bracket (49) is provided with a sliding guide key (57) which is arranged in a sliding table bracket sliding groove (52) of the clamp base (44), so that the position of the clamp sliding table bracket (49) on the clamp base (44) in the horizontal direction can be adjusted; the hexagonal screw (54) is inversely arranged in the screw sliding groove (51) and is placed in the clamping groove (56) at two sides of the clamp sliding table bracket (49), and the position of the clamp sliding table bracket (49) on the clamp base (44) is limited and fixed through locking and matching with the nut (53); the cylinder bodies of the stretching oil cylinder (47), the rotating oil cylinder (50) and the bending oil cylinder (43) are respectively arranged on the clamp sliding table bracket (49) through hinge seats (55); a stretching oil cylinder piston rod (46) and a rotating oil cylinder piston rod (48) are respectively hinged with the clamp (45); a piston rod (42) of the bending oil cylinder is hinged with the bottom of the clamp (45), so that the control of the rotation angle of the clamp (45) is realized; the stretching and bending deformation of the section (7) on a vertical plane is realized through the linkage of the stretching oil cylinder (47), the rotating oil cylinder (50) and the bending oil cylinder (43).
The basic body (6) is characterized by mainly comprising a die unit body (2), a bending oil cylinder piston rod (3), a bending oil cylinder (4), a unit body guide rail (15), a lifting oil cylinder (8) and a basic body support (14) as shown in figures 1-2. The die unit bodies (2) are arranged on the unit body guide rails (15) through the unit body T-shaped grooves (38), the unit body guide rails (15) are fixedly arranged on the basic body support (14), and the positions of the die unit bodies (2) on the unit body guide rails (15) in the forming process are controlled by the displacement of the bending oil cylinder piston rods (3); the bending oil cylinder bolt (13) is arranged on the bending oil cylinder (4), the bending oil cylinder (4) is fixedly arranged on two sides of the basic body (6), and the single-side use or double-side use of the bending oil cylinder bolt can be determined according to the shape of a target forming part; the end part of a bending oil cylinder piston rod (3) is arranged on a guide slide block (22) of the die unit body (2), and the bending forming of the section on the horizontal plane is realized by controlling the displacement of the bending oil cylinder piston rod (3); in the vertical direction, the basic body guide keys (17) at the two ends of the basic body bracket (14) are arranged in the T-shaped groove (5) of the bracket (9); the lifting oil cylinder bolt (16) is arranged on the lifting oil cylinder (8), and the lower end of the lifting oil cylinder (8) is fixed on the bottom plate (10); the end part of a piston rod of the lifting oil cylinder (8) is fixedly connected with the basic body bracket (14), and in the forming process in the vertical direction, the lifting oil cylinder (8) pushes each basic body to a specified height through the piston rod to realize the bending forming in the vertical direction.
The die unit body (2) and the components thereof are shown in figures 3-7 and are characterized by mainly comprising a heat insulation cover (20), a resistance heating wire (28), a multi-point die head body (24), a connecting plate (21), a heat insulation plate (26), a guide sliding block (22) and a horizontal pin shaft (35). The asbestos plate (19) with a hole in the middle is arranged on the outer side of the first and the last die unit body (2), and every two die unit bodies (2) are connected through the soft material (18), so that heat loss is reduced, and the heat insulation performance is improved. The heat-preservation cover (20) is fixedly arranged on the connecting plate (21) through a heat-preservation cover bolt (25), the multi-point die head body (24) is arranged on the connecting plate (21) through a horizontal pin shaft (35) and can rotate around the horizontal pin shaft (35), and the rotating angle is limited by a stop block (29); the connecting plate (21) is respectively matched with a circular groove (37) and a limiting groove (36) on the guide sliding block (22) through a rotating shaft (30) and a limiting pin (32); the heat insulation plate (26) is arranged below the connecting plate (21), so that heat cannot be transferred to the guide sliding block (22) of the die unit body, heat cannot be dissipated, and parts on the basic body cannot be heated. The guide sliding block (22) is arranged on a unit body guide rail (15) of the basic body bracket (14) through a unit body T-shaped groove (38), so that the horizontal movement of the die unit body (2) on the unit body guide rail (15) is realized; the rotating shaft (30) on the connecting plate (21) is arranged in the circular groove (37) of the guide sliding block (22) so that the connecting plate (21) can rotate around the axis of the rotating shaft (30), and the limiting pin (32) arranged on the guide sliding block (22) controls the rotating angle of the connecting plate (21).
The temperature control cabinet (11) and the power supply box (12) are as shown in figures 1, 3 and 8, and are characterized in that the power supply box (12) is placed on the left side of the forming device, and the heating cable (40) is installed on the section bar (7) and connected with the power supply box (12) so as to electrically heat the section bar (7); the insulating material (39) is arranged at the end part of the section bar (7), and the clamp (45) clamps the insulating end of the section bar (7) to prevent energy from being transmitted to the stretch bending control arm (1); the resistance heating cable (27) and the resistance heating wire (28) are arranged on the heat preservation cover (20), the resistance heating cable (27) is connected with the power supply box (12) and is used for electrifying the resistance heating wire (28), and the heat preservation function of each mould unit body (2) is realized; the temperature sensor (33) is arranged on the inner wall of the heat preservation cover (20) of the die unit body (2) and is connected with the temperature control cabinet (11) through a sensing line (34), and the temperature in the die unit body (2) fed back by the temperature sensor (33) is adjusted timely. The temperature control cabinet (11) and the power supply box (12) solve the defects that workers judge temperature change by naked eyes and the temperature is not uniform when the temperature is subjected to multipoint hot stretch bending.
It will be understood that modifications and variations are possible in the art in light of the above teachings and all such modifications and variations are considered to be within the purview of the appended claims.
The first embodiment is a three-dimensional electric heating drawing-pressing composite bending forming process of a rectangular section.
Firstly, determining the number of used basic bodies, height position parameters of the basic bodies, installation positions of bending oil cylinders on the basic bodies and motion displacement of piston rods of the bending oil cylinders according to geometric shape parameters of target parts. Firstly, the lifting oil cylinders are used for adjusting the shape of each basic body to the same horizontal plane, and the bending oil cylinders are controlled to adjust the shape of each die unit body on the basic body to the same straight line, so that the initialization work of the shape adjustment of the die unit bodies is completed.
And secondly, penetrating the metal section into each heat insulation box, clamping two ends of the metal section with the insulating materials through a clamp, then starting the section self-resistance heating and the resistance heating wires of each heat insulation box to heat, and monitoring the temperature in each heat insulation box in real time.
And thirdly, after the temperature of each heat preservation box rises to the target temperature, stretching the section bar to a plastic state by using a stretching oil cylinder, driving the section bar to bend and deform in a vertical plane by the linkage of a rotating oil cylinder, a bending oil cylinder and a lifting oil cylinder, and finishing the bending and forming of the metal section bar in the vertical plane after the section bar is completely attached to the multi-point die and each oil cylinder moves to a designated position.
And fourthly, utilizing the bending oil cylinders on the basic body supports, enabling the piston rods of the bending oil cylinders to push the die unit bodies to slide on the unit body guide rails according to the calculated displacement of the piston rods of the bending oil cylinders, performing bending forming on the bent forming surfaces, and enabling the workpiece to present a target shape on a horizontal plane when all the piston rods move to the designated position, so that the forming process is finished.
Fifthly, cutting off the self-resistance heating of the section and the resistance heating of the heat preservation box, unloading the tension and the pressure, loosening the clamp, taking down the section, and measuring the size and the resilience; and comparing the processed section with a target section, finishing processing if the precision requirement is met, calculating the deviation of the section if the precision requirement is not met, analyzing reasons, compensating shape-adjusting parameters, and processing again.
Claims (5)
1. The utility model provides an independent heat retaining multiple spot three-dimensional electricity heat is drawn-is pressed compound bending forming device, characterized by, this equipment comprises stretch bending control arm (1), support (9), bottom plate (10), basic body (6), lift cylinder (8), bending cylinder (4), mould cell cube (2), temperature control cabinet (11), power box (12), and their relation of connection is as follows: the basic bodies (6) are arranged in the T-shaped grooves (5) on the basic body bracket (14) through basic body guide keys (17) at two ends of the basic body bracket, and the specific using quantity of the basic bodies (6) is determined according to main parameters such as the length size, the section thickness and the like of the formed three-dimensional stretch bending; the bending oil cylinders (4) are arranged at two ends of a bracket (9) on the basic body (6), and the using positions of the bending oil cylinders (4) can be determined according to the shape of a target forming part, such as single-side use or double-side use; the mould unit body (2) is arranged on a unit body guide rail (15) and is pushed by a bending oil cylinder piston rod (3) to move in the horizontal direction; the lifting oil cylinder (8) is fixed on the bottom plate (10), and the end part of a piston rod of the lifting oil cylinder is fixedly connected with the basic body bracket (14) to control the ascending and descending of the basic body (6) in the vertical direction; the stretch bending control arms (1) are horizontally and symmetrically arranged on two sides of the bottom plate (10); and the three-dimensional stretch bending forming of the metal section is realized by controlling the linkage of each hydraulic oil cylinder of the forming equipment.
2. The independent heat-preservation multipoint three-dimensional electric heating drawing-pressing composite bending forming device is characterized in that a drawing and bending control arm (1) mainly comprises clamp bases (44), clamps (45), clamp sliding table supports (49), hexagon screws (54), nuts (53), stretching oil cylinders (47), clamping oil cylinders (41) and bending oil cylinders (43), wherein the clamp bases (44) are horizontally and symmetrically distributed on two sides of a base plate (10), and the distance between the two clamp bases (44) can be adjusted according to the length of a formed part; the bottom of the clamp sliding table bracket (49) is provided with a sliding guide key (57) which is arranged in a sliding table bracket sliding groove (52) of the clamp base (44), so that the position of the clamp sliding table bracket (49) on the clamp base (44) in the horizontal direction can be adjusted; the hexagonal screw (54) is inversely arranged in the screw sliding groove (51) and is placed in the clamping groove (56) at two sides of the clamp sliding table bracket (49), and the position of the clamp sliding table bracket (49) on the clamp base (44) is limited and fixed through locking and matching with the nut (53); the cylinder bodies of the stretching oil cylinder (47), the rotating oil cylinder (50) and the bending oil cylinder (43) are respectively arranged on the clamp sliding table bracket (49) through hinge seats (55); a stretching oil cylinder piston rod (46) and a rotating oil cylinder piston rod (48) are respectively hinged with the clamp (45); a piston rod (42) of the bending oil cylinder is hinged with the bottom of the clamp (45), so that the control of the rotation angle of the clamp (45) is realized; the stretching and bending deformation of the section (7) on a vertical plane is realized through the linkage of the stretching oil cylinder (47), the rotating oil cylinder (50) and the bending oil cylinder (43).
3. The independent heat-preservation multipoint three-dimensional electro-thermal drawing-pressing composite bending forming device is characterized in that a basic body (6) mainly comprises a die unit body (2), a bending oil cylinder piston rod (3), a bending oil cylinder (4), a unit body guide rail (15), a lifting oil cylinder (8) and a basic body support (14), wherein the die unit body (2) is installed on the unit body guide rail (15) through a unit body T-shaped groove (38), the unit body guide rail (15) is fixedly installed on the basic body support (14), and the position of the die unit body (2) on the unit body guide rail (15) in the forming process is controlled by the displacement of the bending oil cylinder piston rod (3); the bending oil cylinder bolt (13) is arranged on the bending oil cylinder (4), the bending oil cylinder (4) is fixedly arranged on two sides of the basic body (6), and the single-side use or double-side use of the bending oil cylinder bolt can be determined according to the shape of a target forming part; the end part of a bending oil cylinder piston rod (3) is arranged on a guide slide block (22) of the die unit body (2), and the bending forming of the section on the horizontal plane is realized by controlling the displacement of the bending oil cylinder piston rod (3); in the vertical direction, the basic body guide keys (17) at the two ends of the basic body bracket (14) are arranged in the T-shaped groove (5) of the bracket (9); the lifting oil cylinder bolt (16) is arranged on the lifting oil cylinder (8), and the lower end of the lifting oil cylinder (8) is fixed on the bottom plate (10); the end part of a piston rod of the lifting oil cylinder (8) is fixedly connected with the basic body bracket (14), and in the forming process in the vertical direction, the lifting oil cylinder (8) pushes each basic body to a specified height through the piston rod to realize the bending forming on the vertical plane.
4. The independent heat-preservation multipoint three-dimensional electric heating drawing-pressing composite bending forming device as claimed in claim 1, wherein the mould unit bodies (2) mainly comprise heat-preservation covers (20), resistance heating wires (28), multipoint mould head bodies (24), connecting plates (21), heat-preservation plates (26), guide sliding blocks (22) and horizontal pin shafts (35), asbestos plates (19) with holes reserved in the middle are installed on the outer sides of the first and last mould unit bodies (2), and every two mould unit bodies (2) are connected through soft materials (18), so that heat loss is reduced, and heat-preservation performance is improved,
the heat-preservation cover (20) is fixedly arranged on the connecting plate (21) through a heat-preservation cover bolt (25), the multi-point die head body (24) is arranged on the connecting plate (21) through a horizontal pin shaft (35) and can rotate around the horizontal pin shaft (35), and the rotating angle is limited by a stop block (29); the connecting plate (21) is respectively matched with a circular groove (37) and a limiting groove (36) on the guide sliding block (22) through a rotating shaft (30) and a limiting pin (32); the heat insulation plate (26) is arranged below the connecting plate (21) to prevent heat from being transferred downwards; the guide sliding block (22) is arranged on a unit body guide rail (15) of the basic body bracket (14) through a unit body T-shaped groove (38), so that the horizontal movement of the die unit body (2) on the unit body guide rail (15) is realized; the rotating shaft (30) on the connecting plate (21) is arranged in the circular groove (37) of the guide sliding block (22) so that the connecting plate (21) can rotate around the axis of the rotating shaft (30), and the limiting pin (32) arranged on the guide sliding block (22) controls the rotating angle of the connecting plate (21).
5. The independent heat-insulating multipoint three-dimensional electric heating drawing-pressing composite bending forming device as claimed in claim 1, wherein the temperature control cabinet (11) and the power supply box (12) are arranged as follows: the power supply box (12) is arranged at the left side of the forming device, and the heating cable (40) is arranged on the section bar (7) and is connected with the power supply box (12) so as to electrically heat the section bar (7); the insulating material (39) is arranged at the end part of the section bar (7), and the clamp (45) clamps the insulating end of the section bar (7) to prevent energy from being transmitted to the stretch bending control arm (1); the resistance heating cable (27) and the resistance heating wire (28) are arranged on the heat preservation cover (20), the resistance heating cable (27) is connected with the power supply box (12) and is used for electrifying the resistance heating wire (28), and the heat preservation function of each mould unit body (2) is realized; the temperature sensor (33) is arranged on the inner wall of the heat preservation cover (20) of the die unit body (2) and is connected with the temperature control cabinet (11) through a sensing line (34), and the temperature in the die unit body (2) fed back by the temperature sensor (33) is adjusted timely.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920483561.XU CN210358714U (en) | 2019-04-11 | 2019-04-11 | Independent heat-preservation multipoint three-dimensional electric heating drawing-pressing composite bending forming device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920483561.XU CN210358714U (en) | 2019-04-11 | 2019-04-11 | Independent heat-preservation multipoint three-dimensional electric heating drawing-pressing composite bending forming device |
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| CN210358714U true CN210358714U (en) | 2020-04-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109877199A (en) * | 2019-04-11 | 2019-06-14 | 长春工业大学 | A kind of multiple spot three-dimensional electric heating based on independent heat preserving mode draws-presses complex bend forming device |
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2019
- 2019-04-11 CN CN201920483561.XU patent/CN210358714U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109877199A (en) * | 2019-04-11 | 2019-06-14 | 长春工业大学 | A kind of multiple spot three-dimensional electric heating based on independent heat preserving mode draws-presses complex bend forming device |
| CN109877199B (en) * | 2019-04-11 | 2023-08-18 | 长春工业大学 | Multi-point three-dimensional electrothermal drawing-pressing composite bending forming device based on independent heat preservation mode |
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