Hot bending device

Abstract

The utility model discloses a hot bending device which comprises a rack, a mold moving assembly, a hot bending assembly, a first heat preservation assembly, an upper mold and a grabbing assembly. The rack is provided with a hot bending station and a feeding and discharging station. The first heat preservation assembly is arranged on the feeding and discharging station and comprises a first driving structure, a first upper heat preservation plate and a first lower heat preservation plate, and the first driving structure is connected with at least one of the first upper heat preservation plate and the first lower heat preservation plate. The grabbing assembly is arranged on the first upper heat preservation plate and connected with the upper die. According to the hot bending device, after the lower die loaded with the workpiece is fed to the first lower heat preservation plate, the grabbing assembly can place the upper die on the lower die, so that the workpiece can be subjected to hot bending forming between the upper die and the lower die, and the hot bending forming quality of the workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot bending and forming, in particular to a hot bending device. Background Art

[0002] When hot bending some workpieces, in order to ensure the quality of the hot bending of the workpieces, the upper and lower molds of the mold need to be closed to ensure that the workpieces can be in a small and relatively closed high-temperature environment. After the workpieces are hot bent, the upper and lower molds need to be separated to facilitate the subsequent processing of the workpiece on the lower mold.

[0003] In the hot bending device of the related art, in order to facilitate the subsequent processing of the workpiece on the lower die, the lower die carrying the workpiece is often directly transported to the hot bending station for hot bending forming, and then the lower die is directly taken out.

[0004] Since the workpiece cannot be clamped between the upper die and the lower die during hot bending, the quality of the hot bending of the workpiece is poor. Utility Model Content

[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art. The utility model provides a hot bending device with higher hot bending forming quality of workpieces.

[0006] According to the hot bending device provided by the embodiment of the utility model, it includes a frame, a mold shifting assembly, a hot bending assembly, a first insulation assembly, an upper mold and a grabbing assembly; the frame is provided with a hot bending station and a loading and unloading station; the mold shifting assembly is arranged on the frame, and is used to drive the lower mold to reciprocate between the hot bending station and the loading and unloading station; the hot bending assembly is arranged at the hot bending station, and is used to hot bend the workpiece on the lower mold; the first insulation assembly is arranged at the loading and unloading station, the first insulation assembly includes a first driving structure, a first upper insulation plate and a first lower insulation plate, the first lower insulation plate is used to carry the lower mold, the first driving structure is connected to at least one of the first upper insulation plate and the first lower insulation plate, and is used to drive the first upper insulation plate and the first lower insulation plate to move closer to or away from each other; the grabbing assembly is arranged on the first upper insulation plate and connected to the upper mold, the grabbing assembly can place the upper mold on the lower mold of the loading and unloading station, or grab the upper mold on the lower mold of the loading and unloading station.

[0007] The hot bending device described in the utility model has at least the following beneficial effects: in the hot bending device of the present application, after the lower mold loaded with the workpiece is loaded onto the first lower insulation board, the grabbing assembly can place the upper mold on the lower mold, and then the mold shifting assembly can transport the lower mold together with the upper mold to the hot bending station, so that the workpiece can be hot bent by the hot bending assembly, and then the mold shifting assembly can transport the lower mold together with the upper mold to the first lower insulation board of the loading and unloading station, and after the grabbing assembly grabs the upper mold on the lower mold, the lower mold is unloaded, and a new lower mold is reloaded onto the first lower insulation board. It can be seen from this that in the hot bending device of the present application, the lower mold can be directly loaded and unloaded, and before the lower mold is transported to the hot bending station, the grabbing assembly can place the upper mold on the lower mold, so that the workpiece can be hot bent between the upper mold and the lower mold, thereby improving the quality of the hot bending of the workpiece.

[0008] According to the hot bending device described in an embodiment of the utility model, the grabbing assembly includes a second driving structure, a first clamp and a second clamp, an upper mold clamping area is formed between the first clamp and the second clamp, and the second driving structure is connected to at least one of the first clamp and the second clamp, and is used to drive the first clamp and the second clamp to move closer to or away from each other.

[0009] According to the hot bending device described in an embodiment of the utility model, the second driving structure includes a first driver and a second driver, and the first driver and the second driver are respectively arranged at two opposite ends of the first upper insulation plate. The first driver is connected to the first clamp and is used to drive the first clamp to approach or move away from the second clamp. The second driver is connected to the second clamp and is used to drive the second clamp to approach or move away from the second clamp.

[0010] According to the hot bending device described in the embodiment of the utility model, the grabbing assembly also includes a guide rod, the guide rod is arranged on the first upper insulation plate, and the first clamping jaw and the second clamping jaw can be slidably inserted into the guide rod.

[0011] According to the hot bending device described in an embodiment of the utility model, a first supporting portion is provided at one end of the first jaw close to the second jaw, and the first supporting portion is used to support the edge of the upper mold; a second supporting portion is provided at one end of the second jaw close to the first jaw, and the second supporting portion is used to support the edge of the upper mold.

[0012] According to the hot bending device described in the embodiment of the utility model, it also includes a second insulation component. A cooling and slowing station is also provided on the frame. The cooling and slowing station is located between the hot bending station and the loading and unloading stations. The second insulation component is located at the cooling and slowing station and is used to pre-cool the workpiece on the lower mold.

[0013] According to the heat bending device described in the embodiment of the utility model, the mold shifting component, the first heat insulation component and the second heat insulation component are cooperated to form two groups, and are respectively arranged on two opposite sides of the heat bending component.

[0014] According to the hot bending device described in the embodiment of the utility model, the mold shifting assembly includes a third drive, a screw rod, a slide rail and a mold shifting frame. The mold shifting frame is provided with an accommodating area for accommodating the lower mold. The extension direction of the screw rod is arranged parallel to the extension direction of the slide rail. The mold shifting frame can be slidably arranged on the slide rail and is threadedly connected to the screw rod. The third drive is connected to the screw rod and is used to drive the screw rod to rotate.

[0015] According to the hot bending device described in the embodiment of the utility model, the mold moving frame includes a mounting plate, a sleeve and a plurality of limit members, the sleeve is threadedly mounted on the screw rod, the plurality of limit members are arranged on the mounting plate at intervals along the extension direction of the screw rod, and a accommodating area is formed between any two adjacent limit members, the mounting plate can be slidably disposed on the slide rail and connected to the sleeve.

[0016] According to the heat bending device described in the embodiment of the utility model, it also includes a cavity door assembly, a accommodating cavity is provided on the frame, the heat bending station and the loading and unloading station are both arranged in the accommodating cavity, an entrance and exit are provided on the cavity wall of the accommodating cavity adjacent to the loading and unloading station, and the cavity door assembly includes a third driving structure and a cavity door, the cavity door is arranged at the entrance and exit, the third driving structure is connected to the cavity door, and is used to drive the cavity door to perform lifting movement to open or close the entrance and exit.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0019] Figure 1 This is a schematic structural diagram of a heat bending device according to an embodiment of the utility model;

[0020] Figure 2 for Figure 1 A schematic structural diagram of a first heat preservation component of the heat bending device shown;

[0021] Figure 3 This is a schematic diagram of the structure of a grabbing assembly according to an embodiment of the utility model;

[0022] Figure 4 The figure is a schematic structural diagram of a mold shifting assembly according to an embodiment of the utility model.

[0023] Reference numerals:

[0024] Frame 100; chamber door 110; guide member 120;

[0025] The mold shifting assembly 200; the third driver 210; the screw rod 220; the slide rail 230; the mold shifting frame 240; the mounting plate 241; the sleeve 242; the stopper 243; the accommodating area 240a;

[0026] Thermal bending component 300;

[0027] First heat preservation assembly 400; first driving structure 410; first upper heat preservation board 420; first lower heat preservation board 430; first connecting board 440; first elastic connecting member 450;

[0028] Upper mold 500;

[0029] Grasping assembly 600; second driving structure 610; first driver 611; second driver 612; first clamping jaw 620; first supporting portion 621; second clamping jaw 630; guide rod 640;

[0030] The second heat preservation component 700. DETAILED DESCRIPTION

[0031] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] Reference below Figures 1 to 4 The hot bending device of the utility model is described in detail.

[0036] refer to Figure 1 and Figure 2According to some embodiments of the present invention, the hot bending device includes a frame 100, a mold transfer assembly 200, a hot bending assembly 300, a first heat preservation assembly 400, an upper mold 500 and a grabbing assembly 600.

[0037] A hot bending station and a loading and unloading station are provided on the frame 100, and the loading and unloading stations and the hot bending station are distributed in the left and right directions; the mold shifting assembly 200 is provided on the frame 100, and is used to drive the lower mold of the mold to move back and forth between the hot bending station and the loading and unloading station; the hot bending assembly 300 is provided at the hot bending station, and is used to perform hot bending on the workpiece on the mold; the first insulation assembly 400 is provided at the loading and unloading station, and the first insulation assembly 400 includes a first driving structure 410, a first upper insulation plate 420, a first lower insulation plate 430, a first connecting plate 440 and a first elastic connecting member 450, the first lower insulation plate 430 is used to bear the lower mold, and the first driving structure The structure 410 is connected to the first connecting plate 440, and the first connecting plate 440 is connected to the first upper insulation plate 420 through the first elastic connecting member 450. Under the drive of the first driving structure 410, the first connecting plate 440 can drive the first upper insulation plate 420 to perform lifting and lowering movements through the first elastic connecting member 450, so as to realize the first upper insulation plate 420 and the first lower insulation plate 430 approaching or moving away from each other; the grabbing assembly 600 is arranged on the first upper insulation plate 420 and connected to the upper mold 500. The grabbing assembly 600 can place the upper mold 500 on the lower mold of the loading and unloading station, or grab the upper mold 500 on the lower mold of the loading and unloading station.

[0038] When the heat bending device of the present embodiment is working, the lower mold can be loaded onto the first lower insulation plate 430 of the loading and unloading station, then the first driving structure 410 can drive the first upper insulation plate 420 to move downward to approach the first lower insulation plate 430, then the grabbing assembly 600 can cover the grabbed upper mold 500 on the lower mold, and then the mold moving assembly 200 can drive the lower mold together with the upper mold 500 to move to the heat bending station, and the heat bending assembly 300 heats and forms the workpiece on the lower mold. After the workpiece is heat-bent, the mold moving assembly 200 can drive the lower mold together with the upper mold 500 to move to the heat bending station. The upper mold 500 moves to the loading and unloading station. At this time, the first driving structure 410 drives the first upper insulation plate 420 to approach the first lower insulation plate 430. The first upper insulation plate 420 cooperates with the first lower insulation plate 430 to insulate the workpiece on the lower mold for a period of time. During this process, the grabbing assembly 600 can grab the upper mold 500 again. Then, the first driving structure 410 drives the first upper insulation plate 420 upward away from the first lower insulation plate 430. During this process, the grabbing assembly 600 drives the upper mold 500 to separate from the lower mold, so as to facilitate the subsequent separate unloading of the lower mold.

[0039] It can be understood that the setting of the grabbing assembly 600 enables the grabbing assembly 600 to cover the grabbed upper mold 500 on the lower mold after the lower mold is loaded onto the first lower insulation plate 430, so that the lower mold can be moved to the hot bending station together with the upper mold 500. When the hot bending assembly 300 hot bends the workpiece, the workpiece can be in the narrow space between the upper mold 500 and the lower mold to improve the quality of the hot bending of the workpiece.

[0040] It can be understood that the arrangement of the grabbing assembly 600 and the upper mold 500 enables the hot bending device of this embodiment to only load and unload the lower mold separately when working, without the need to separately configure an upper mold 500 for each lower mold, thereby reducing the manufacturing cost.

[0041] It can be understood that since the grabbing assembly 600 is arranged on the first upper insulation plate 420, and then under the drive of the first driving structure 410, the grabbing assembly 600 can follow the first upper insulation plate 420 to perform lifting and lowering movements, thereby eliminating the need to additionally set up a driving source to drive the grabbing assembly 600 to perform lifting and lowering movements, thereby improving the structural compactness of the heat bending device of this embodiment and reducing the manufacturing cost of the heat bending device of this embodiment.

[0042] In some embodiments of the present invention, in order to realize the grabbing assembly 600 to grab or put down the upper mold 500, refer to Figure 3 The grabbing assembly 600 includes a second driving structure 610, a first clamp 620 and a second clamp 630. An upper mold clamping area is formed between the first clamp 620 and the second clamp 630. The second driving structure 610 is connected to at least one of the first clamp 620 and the second clamp 630, and is used to drive the first clamp 620 and the second clamp 630 to move closer to or away from each other.

[0043] In a specific embodiment of the present invention, reference Figure 3 The second driving structure 610 includes a first driver 611 and a second driver 612. The first driver 611 and the second driver 612 are respectively arranged at the front and rear ends of the first upper insulation plate 420. The first driver 611 is connected to the first clamp 620 and is used to drive the first clamp 620 to approach or move away from the second clamp 630. The second driver 612 is connected to the second clamp 630 and is used to drive the second clamp 630 to approach or move away from the second clamp 630.

[0044] It is understandable that, since the first clamping jaw 620 and the second clamping jaw 630 can be driven independently, there is no need to provide an additional linkage structure between the first clamping jaw 620 and the second clamping jaw 630, thereby simplifying the overall structure of the grabbing assembly 600 of this embodiment.

[0045] It should be noted that in actual work, the overall mass of the upper mold 500 is relatively large, and it is difficult to smoothly grasp the upper mold 500 by relying solely on the friction between the upper mold 500 and the first clamp 620 , and the friction between the upper mold 500 and the second clamp 630 .

[0046] Based on the above reasons, in a further embodiment of the present invention, reference Figure 3 A first supporting portion 621 is provided at the lower end of the first clamping jaw 620, and the first supporting portion 621 extends toward the second clamping jaw 630 and is used to support the edge of the upper mold 500; a second supporting portion (not shown in the figure) is provided at the lower end of the second clamping jaw 630, and the second supporting portion extends toward the first clamping jaw 620 and is used to support the edge of the upper mold 500.

[0047] Furthermore, driven by the second driving structure 610, the first clamp 620 and the second clamp 630 can approach each other so that the first support part 621 and the second support part both extend directly below the upper mold 500. Driven by the first driving structure 410, the grabbing structure can move upward with the first upper insulation plate 420, so that with the support of the first support part 621 and the second support part, the upper mold 500 can be lifted smoothly.

[0048] In some embodiments of the present invention, in order to achieve accurate movement of the first clamping jaw 620 and the second clamping jaw 630 in the front-to-back direction, refer to Figure 3 The grabbing assembly 600 further includes a guide rod 640 , which is disposed on the first upper insulation plate 420 and extends along the front-rear direction. The first clamping jaw 620 and the second clamping jaw 630 can both be slidably inserted into the guide rod 640 .

[0049] Furthermore, under the drive of the first driver 611 , the first clamping jaw 620 can slide forward and backward along the guide rod 640 , and under the drive of the second driver 612 , the second clamping jaw 630 can slide forward and backward along the guide rod 640 .

[0050] In a further embodiment of the present invention, reference Figure 3 The grabbing assembly 600 includes two guide rods 640, and the two guide rods 640 are arranged side by side along the left-right direction.

[0051] In other embodiments of the present invention, the grabbing assembly 600 includes a suction head and a vacuum generator. At this time, the suction head is arranged on the first upper insulation plate 420 and is connected to the vacuum generator. Then, when the vacuum generator is working, the suction head can adsorb the upper mold 500, and when the vacuum generator stops working, the suction head can release the upper mold 500.

[0052] In some embodiments of the present invention, reference Figure 4The mold shifting assembly 200 includes a third driver 210, a screw rod 220, a slide rail 230 and a mold shifting frame 240. The mold shifting frame 240 is provided with a accommodating area 240a for accommodating the mold. The screw rod 220 and the slide rail 230 are both extended in the left and right directions. The mold shifting frame 240 is slidably arranged on the slide rail 230 and is threadedly connected to the screw rod 220. The third driver 210 is connected to the screw rod 220 and is used to drive the screw rod 220 to rotate.

[0053] Furthermore, driven by the third driver 210 , the screw rod 220 can rotate, so that the mold moving frame 240 can slide left and right along the slide rail 230 , thereby driving the lower mold in the accommodating area 240 a to move left and right.

[0054] It can be understood that when the hot bending device of this embodiment is working, under the drive of the third driver 210, the mold frame 240 can be moved along the slide rail 230 to the loading and unloading station. At this time, the lower mold can be loaded into the accommodating area 240a of the mold frame 240, and then, under the drive of the third driver 210, the mold frame 240 can be moved along the slide rail 230 to the hot bending station, so that the hot bending component 300 can hot bend the workpiece on the lower mold.

[0055] In a further embodiment of the present invention, reference Figure 4 The mold moving frame 240 includes a mounting plate 241, a sleeve 242 and a plurality of limit members 243. The sleeve 242 is threadedly sleeved on the screw rod 220. The plurality of limit members 243 are spaced apart on the mounting plate 241 along the left-right direction, and a receiving area 240a is formed between any two adjacent limit members 243. The mounting plate 241 is slidably disposed on the slide rail 230 and is connected to the sleeve 242.

[0056] Specifically, the mold moving frame 240 includes two limiting members 243 distributed along the left and right directions.

[0057] It should be noted that due to the large temperature difference between the hot bending station and the loading and unloading station, if the workpiece after hot bending is directly moved from the hot bending station to the loading and unloading station, the workpiece is prone to damage, such as cracks on the surface of the workpiece.

[0058] Based on the above problems, in some embodiments of the present invention, reference Figure 1 The hot bending device also includes a second heat preservation component 700. A cooling and slowing station is also provided on the frame 100. The cooling and slowing station is located between the hot bending station and the loading and unloading stations. The second heat preservation component 700 is located at the cooling and slowing station and is used to pre-cool the workpiece on the lower mold.

[0059] It is understandable that, by providing the second heat preservation component 700 and the cooling station, the second heat preservation component 700 can pre-cool the workpiece to slow down the rate of temperature drop of the workpiece itself, thereby improving the quality of the workpiece.

[0060] Specifically, the second insulation component 700 includes a fourth driving structure, a second upper insulation plate, a second lower insulation plate, a second connecting plate and a second elastic connecting member. The second lower insulation plate is used to support the lower mold. The fourth driving structure is connected to the second connecting plate. The second connecting plate is connected to the upper end of the second upper insulation plate through the second elastic connecting member. Driven by the fourth driving structure, the second connecting plate can drive the second upper insulation plate to perform lifting and lowering movements through the second elastic connecting member to achieve the second upper insulation plate and the second lower insulation plate to approach or move away from each other.

[0061] It should be noted that when the mold shifting assembly 200 drives the lower mold to move to the loading and unloading station, the hot bending station is in an idle state.

[0062] In order to further improve the working efficiency of the hot bending device of the present application, in some embodiments of the present utility model, reference is made to Figure 1 Two loading and unloading stations are provided on the frame 100, and the two loading and unloading stations are respectively located on the left and right sides of the hot bending station. Two cooling and slowing stations are provided on the frame 100, and a cooling and slowing station is provided between each loading and unloading station and the hot bending station. The mold transfer assembly 200, the first insulation assembly 400 and the second insulation assembly 700 are cooperated to form two groups, each loading and unloading station is provided with a first insulation assembly 400, and each cooling and slowing station is provided with a second insulation assembly 700.

[0063] Furthermore, when one of the mold shifting assemblies 200 drives the lower mold to move to the loading and unloading station, the other mold shifting assembly 200 can drive the other lower mold to move to the hot bending station to perform hot bending on the workpiece on the lower mold.

[0064] It can be understood that by providing two groups of the mold shifting assembly 200, the first heat-insulating assembly 400 and the second heat-insulating assembly 700, the working efficiency of the heat bending device of this embodiment can be further improved.

[0065] In some embodiments of the present invention, reference Figure 1 The hot bending device also includes a cavity door assembly. A accommodating cavity is provided on the frame 100. The hot bending station and the loading and unloading stations are both arranged in the accommodating cavity. An entrance and exit are provided on the cavity wall of the accommodating cavity adjacent to the loading and unloading station. Guide members 120 are arranged on the left and right sides of the entrance and exit. The guide members 120 are provided with vertically extending long strip holes. The cavity door assembly includes a third driving structure and a cavity door 110. The cavity door 110 is arranged at the entrance and exit, and partially extends into the long strip hole. The third driving structure is connected to the cavity door 110, and is used to drive the cavity door 110 to move up and down along the long strip hole to open or close the entrance and exit.

[0066] In some embodiments of the present invention, the hot bending assembly 300 includes a fifth driver, an upper hot bending plate and a lower hot bending plate, the lower hot bending plate is used to support the lower mold, and heating rods are provided in the upper hot bending plate and the lower hot bending plate. The fifth driver is connected to at least one of the upper hot bending plate and the lower hot bending plate, and is used to drive the upper hot bending plate and the lower hot bending plate to move closer to or away from each other.

[0067] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hot bending device, characterized in that: include: A frame, wherein a hot bending station and a loading and unloading station are provided on the frame; A die-moving assembly is disposed on the frame and is used to drive the lower die to move back and forth between the hot bending station and the loading and unloading station; A hot bending assembly is provided at the hot bending station and is used to hot bend the workpiece on the lower die; A first insulation component is provided at the loading and unloading station, the first insulation component comprises a first driving structure, a first upper insulation board and a first lower insulation board, the first lower insulation board is used to carry the lower mold, the first driving structure is connected to at least one of the first upper insulation board and the first lower insulation board, and is used to drive the first upper insulation board and the first lower insulation board to move closer to or away from each other; upper mold; A grabbing assembly is disposed on the first upper insulation board and connected to the upper mold. The grabbing assembly can place the upper mold on the lower mold of the loading and unloading station, or grab the upper mold on the lower mold of the loading and unloading station.

2. A hot bending device according to claim 1, characterized in that: The gripping assembly includes a second driving structure, a first clamp and a second clamp. An upper mold clamping area is formed between the first clamp and the second clamp. The second driving structure is connected to at least one of the first clamp and the second clamp, and is used to drive the first clamp and the second clamp to move closer to or away from each other.

3. A hot bending device according to claim 2, characterized in that: The second driving structure includes a first driver and a second driver, and the first driver and the second driver are respectively arranged at opposite ends of the first upper insulation plate. The first driver is connected to the first clamp and is used to drive the first clamp to approach or move away from the second clamp. The second driver is connected to the second clamp and is used to drive the second clamp to approach or move away from the second clamp.

4. A hot bending device according to claim 2 or 3, characterized in that: The grabbing assembly further comprises a guide rod, which is arranged on the first upper heat-insulating plate, and the first clamping jaw and the second clamping jaw can both be slidably inserted into the guide rod.

5. A hot bending device according to claim 2 or 3, characterized in that: A first supporting portion is provided at one end of the first clamping jaw close to the second clamping jaw, and the first supporting portion is used to support the edge of the upper mold; a second supporting portion is provided at one end of the second clamping jaw close to the first clamping jaw, and the second supporting portion is used to support the edge of the upper mold.

6. A hot bending device according to claim 1, characterized in that: It also includes a second insulation component. The frame is also provided with a cooling and slowing station, which is located between the hot bending station and the loading and unloading stations. The second insulation component is located at the cooling and slowing station and is used to pre-cool the workpiece on the lower mold.

7. A hot bending device according to claim 6, characterized in that: The mold shifting assembly, the first heat-insulating assembly and the second heat-insulating assembly are cooperated to form two groups, and are respectively arranged on two opposite sides of the hot bending assembly.

8. The hot bending device according to claim 1, characterized in that: The mold shifting assembly includes a third driver, a screw rod, a slide rail and a mold shifting frame. The mold shifting frame is provided with a accommodating area for accommodating a lower mold. The extension direction of the screw rod is arranged parallel to the extension direction of the slide rail. The mold shifting frame can be slidably arranged on the slide rail and is threadedly connected to the screw rod. The third driver is connected to the screw rod and is used to drive the screw rod to rotate.

9. A hot bending device according to claim 8, characterized in that: The mold moving frame includes a mounting plate, a sleeve and a plurality of limit members. The sleeve is threadedly mounted on the screw rod. The plurality of limit members are spaced apart on the mounting plate along the extension direction of the screw rod, and the accommodating area is formed between any two adjacent limit members. The mounting plate can be slidably disposed on the slide rail and is connected to the sleeve.

10. The hot bending device according to claim 1, characterized in that: It also includes a cavity door assembly, wherein a accommodating cavity is provided on the frame, the hot bending station and the loading and unloading station are both arranged in the accommodating cavity, and an entrance and exit are provided on the cavity wall of the accommodating cavity adjacent to the loading and unloading station, and the cavity door assembly includes a third driving structure and a cavity door, the cavity door is arranged at the entrance and exit, the third driving structure is connected to the cavity door, and is used to drive the cavity door to perform lifting movements to open or close the entrance and exit.

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