Rapid die changing device for new energy automobile profile die

Abstract

The invention relates to the technical field of die changing, and discloses a new energy automobile profile die quick changing device which comprises a working frame, and a sealing assembly is installed on one side of the working frame and used for sealing work in the forming process; the positioning mechanism is installed on one side of the working frame and used for positioning between the device and an extruding machine and between the device and a profile mold, the positioning mechanism comprises a clamping assembly and a fastening assembly, the clamping assembly is installed in an inner cavity of the working frame and used for fixing the position of the device and the position of the extruding machine, and the fastening assembly is installed on one side of the working frame and used for fixing the position of the device and the position of the extruding machine. And the device is used for fixing the position between the device and the profile mold. According to the rapid locking and unlocking device, through cooperation of the clamping assembly and the fastening assembly, rapid locking and unlocking of the extruder and the mold are achieved, during mold replacement, clamping is relieved only by reversely rotating the crank, locking can be completed by forwards rotating the crank after the preassembled mold is pushed in, the single-time mold replacement time is shortened, and the equipment utilization rate is further increased.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of mold changing, in particular to a new energy automobile profile mold quick changing device. BACKGROUND

[0002] With the explosive growth of the new energy automobile market, the vehicle model update cycle is shortened from 4 years of traditional fuel vehicles to 1-3 years, and the model change cycle is compressed from 6-24 months to 4-15 months. This change leads to a significant increase in mold replacement frequency, and the lightweight demand of new energy vehicles further requires the mold to have high precision, multi-material compatibility and rapid response capability.

[0003] Through retrieval, the patent with Chinese patent number CN114833259A discloses a quick dismounting structure for automobile mold changing, which mainly comprises a mounting seat, a mold and two mounting racks, and the two ends of the mounting seat on the two sides of the outer part are provided with reciprocating movable moving seats. The advantages of the present application are that: four fixed cylinders are fixedly connected at the four corners of the top surface of the mounting seat, the four fixed cylinders are divided into two groups, grooves are formed on the outer sides of the outer surfaces of the four fixed cylinders, the two ends of the mounting rack are freely slid in the interiors of the two groups of fixed cylinders, the mounting rack is in the shape of U, connecting rods are fixedly connected to the lower sides of the outer surfaces of the mounting rack on both sides, the four fixed rods are freely slid in the interiors of the grooves, nuts are threadedly connected to the exteriors of the four fixed rods to fix the positions of the mounting racks, the heights of the mounting racks are conveniently adjusted, and a plurality of counterbores are formed in the top surfaces of the mounting racks. When in use, the mounting rack can be assembled with other equipment to conveniently drive the mold to reciprocate.

[0004] However, in the prior art, mold changing work relies on multiple workers to cooperatively complete mold dismounting, hoisting, positioning, debugging and other processes, and the time consumed for single mold changing is as long as 2-3 hours, and a large amount of time is wasted on serial operation, for example, the mold and tools are searched for only after the equipment is stopped, so that the equipment is idled, the equipment utilization rate is insufficient due to frequent mold changing, and the production capacity is further lost. Based on this, the present application designs a new energy automobile profile mold quick changing device to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a new energy automobile profile mold quick changing device, which solves the problem of low production capacity caused by complicated mold changing time in the background art.

[0006] In order to solve the above technical problems, the present application provides the following technical scheme:

[0007] A new energy automobile profile mold quick changing device comprises:

[0008] A working frame is provided with a sealing assembly on one side for sealing work during the molding process.

[0009] A positioning mechanism is installed on one side of the working frame for positioning between the device and the extruder and the profile die, which comprises a clamping assembly and a fastening assembly. The clamping assembly is installed in the inner cavity of the working frame and is used for fixing the position of the device and the extruder. The fastening assembly is installed on one side of the working frame and is used for fixing the position between the device and the profile die.

[0010] Preferably, the clamping assembly comprises threaded holes opened on the top and bottom of the working frame. Threaded lifting rods are threadedly connected in the inner cavities of the threaded holes. A crank handle is installed on the outer circle of the threaded lifting rod. A lifting block is installed on one end of the threaded lifting rod in the inner cavity of the working frame. The threaded lifting rod and the lifting block are rotationally connected through a bearing. A buffer assembly is also installed in the inner cavity of the lifting block for buffering during clamping of the extruder.

[0011] Preferably, the buffer assembly comprises a buffer groove opened in the inner cavity of the lifting block. A buffer plate is hingedly connected in the inner cavity of the buffer groove. The buffer plate is made of rubber. Fixed blocks are fixedly connected on both sides of the top of the buffer plate. A telescopic rod is installed on the top of the fixed block. A roller assembly is installed on the top of the telescopic rod.

[0012] Preferably, the buffer assembly further comprises a buffer spring installed on the outer circle of the telescopic rod. The top of the buffer spring is fixedly connected with the bottom of the roller assembly. The bottom of the buffer spring is fixedly connected with the top of the fixed block for buffering during clamping of the extruder.

[0013] Preferably, the inner wall of the working frame is provided with a sliding groove. The two sides of the lifting block are fixedly connected with sliding blocks. The sliding blocks are slidingly connected in the inner cavities of the sliding grooves for improving the stability of the lifting block.

[0014] Preferably, the fastening assembly comprises an annular groove opened on one side of the working frame and a flange plate installed in the inner cavity of the annular groove. The flange plate and the inner wall of the annular groove are fixedly connected through positioning bolts. The positioning bolts are circumferentially arrayed in multiple groups. The flange plate is fixedly connected with a die changing disc away from the annular groove. The die changing disc is provided with a positioning groove away from the flange plate for positioning of the die changing disc and the profile die. The front and back surfaces of the working frame are also provided with a fixing assembly for fixing the position of the die changing disc and the profile die.

[0015] Preferably, the fixing assembly comprises a fixing frame fixedly connected to the front and back surfaces of the working frame. A threaded moving rod is rotationally connected in the inner cavity of the fixing frame. A knob is installed on one side of the threaded moving rod. A moving block is threadedly connected to the outer circle of the threaded moving rod. A fastener is fixedly connected to one side of the moving block close to the die changing disc.

[0016] Preferably, a limiting rod is also fixedly connected in the inner cavity of the fixed frame, the moving block is slidingly sleeved on the outer circle of the limiting rod, and the fastener is in an arc structure and used for being tightly attached to the profile mold to realize fixation.

[0017] Preferably, the sealing assembly comprises a sealing plate slidingly connected on one side of the working frame, one side of the working frame is provided with a limiting groove, one side of the sealing plate is fixedly connected with a limiting block, the limiting block is slidingly connected in the inner cavity of the limiting groove, and the limiting block and the limiting groove are both in a convex structure, the sealing plate is provided with two groups and is vertically distributed, one side of the sealing plate is fixedly connected with a sealing shell, the opposite sides of the sealing shells located at the top and the bottom are both fixedly connected with sealing pads, used for sealing in the sealing shell assembling process, the inner cavity of the sealing shell is provided with an extrusion channel, and a self-locking assembly is further installed between the sealing plates.

[0018] Preferably, the self-locking assembly comprises self-locking blocks installed on both sides of the sealing plate, the bottom of the self-locking block located at the top is fixedly connected with a positioning column, the inner cavity of the self-locking block located at the bottom is provided with a positioning hole, and the size of the positioning hole is matched with that of the positioning column, one side of the self-locking block located at the top is hingedly connected with a self-locking plate, the bottom of the self-locking plate is provided with a self-locking hole, and the size of the self-locking hole is matched with that of the positioning column.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] 1. By cooperation of the clamping assembly and the fastening assembly, the extruder and the mold are quickly locked and unlocked, when the mold is replaced, the handle is only needed to be reversely rotated to release the clamping, the handle is forwardly rotated after the preassembled mold is pushed in, and then the locking is completed, the single mold replacement time is shortened, and the equipment utilization is further improved.

[0021] 2. The positioning mechanism of the present application is provided with a pre-alignment structure of the annular groove + flange + positioning bolt, so that the mold disc and the mold do not need to be twice aligned; the fixed assembly realizes automatic lamination and locking of the mold, and only one person is needed to operate the knob to complete the fixation, thereby reducing manual intervention.

[0022] 3. The positioning mechanism of the present application is provided with a pre-alignment structure of the annular groove + flange, so that the mold disc and the mold do not need to be twice aligned; the threaded moving rod and the arc-shaped fastener realize automatic lamination and locking of the mold, and only one person is needed to operate the knob to complete the fixation, thereby reducing complicated operation. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a perspective view of the present application;

[0024] Figure 2 It is a side view of the present application;

[0025] Figure 3 Structure diagram of the sealing assembly of the present application;

[0026] Figure 4 Structure diagram of the sealing assembly of the present application;

[0027] Figure 5 Structure diagram of the sealing assembly of the present application;

[0028] Figure 6 Structure diagram of the sealing assembly of the present application;

[0029] Figure 7 Structure diagram of the sealing assembly of the present application;

[0030] Figure 8 Structure diagram of the sealing assembly of the present application;

[0031] 1, sealing assembly; 2, clamping assembly; 3, fastening assembly; 4, buffer assembly; 5, fixing assembly; 6, self-locking assembly; 101, working frame; 201, threaded hole; 202, threaded lifting rod; 203, crank; 204, lifting block; 205, sliding groove; 206, sliding block; 401, buffer groove; 402, buffer plate; 403, fixed block; 404, telescopic rod; 405, roller assembly; 406, buffer spring; 301, annular groove; 302, flange piece; 303, positioning bolt; 304, die changing disc; 305, positioning groove; 501, fixed frame; 502, threaded moving rod; 503, knob; 504, moving block; 505, fastener; 506, limiting rod; 102, sealing plate; 103, limiting groove; 104, limiting block; 105, sealing shell; 106, extrusion channel; 601, self-locking block; 602, positioning column; 603, positioning hole; 604, self-locking plate; 605, self-locking hole. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] Embodiment 1;

[0034] Please refer to Figures 1-8The embodiment of the application discloses a new energy automobile profile mold quick mold changing device, which comprises a working frame 101, a sealing assembly 1 is installed on one side of the working frame 101 and used for sealing work in a molding process, a positioning mechanism is installed on one side of the working frame 101 and used for positioning between the device, an extruding machine and a profile mold, the positioning mechanism comprises a clamping assembly 2 and a fastening assembly 3, the clamping assembly 2 is installed in a cavity of the working frame 101 and used for position fixing of the device and the extruding machine, and the fastening assembly 3 is installed on one side of the working frame 101 and used for position fixing between the device and the profile mold.

[0035] The clamping assembly 2 comprises threaded holes 201 formed in the top and bottom of the working frame 101, threaded lifting rods 202 are threadedly connected in cavities of the threaded holes 201, handles 203 are installed on outer rings of the threaded lifting rods 202, lifting blocks 204 are installed at one end of the threaded lifting rods 202 in the cavity of the working frame 101, the threaded lifting rods 202 are rotationally connected with the lifting blocks 204 through bearings, buffer assemblies 4 are further installed in cavities of the lifting blocks 204 and used for buffering work in a clamping process of the extruding machine.

[0036] The working principle of the embodiment of the present application is: during operation, first, the device is installed at the corresponding position of the extruding machine, the sealing assembly 1 on one side of the working frame 101 can effectively ensure the sealing during the forming process, prevent leakage problems, and ensure the stability of the production environment and the forming quality, and the positioning mechanism enables the device to be accurately fixed at the appropriate position with the extruding machine and the profile mold. Specifically, the clamping assembly 2 is installed in the inner cavity of the working frame 101, and the threaded lifting rod 202 connected in the threaded hole 201 is operated in cooperation with the outer ring of the crank 203, when the crank 203 is rotated, the threaded lifting rod 202 moves up and down in the threaded hole 201, and then drives the lifting block 204 connected by the bearing to rotate and lift, so as to fix the position of the device with the extruding machine. The sliding block 206 slides in the inner cavity of the sliding groove 205, which greatly improves the stability of the lifting block 204 during lifting, so that the device is more accurate and reliable when fixed in position with the extruding machine, avoiding positioning deviation caused by lifting shaking.

[0037] During this process, the buffer assembly 4 in the inner cavity of the lifting block 204 will play a role, the buffer plate 402 in the buffer groove 401 is connected by the telescopic rod 404 and the roller assembly 405 through the top two side fixing blocks 403, and cooperates with the buffer spring 406 installed outside the telescopic rod 404, which can effectively buffer the impact force during the clamping process of the extruding machine, avoid affecting the stability and precision of the device and the mold due to excessive impact, and ensure the smooth progress of the entire forming process.

[0038] Embodiment 2;

[0039] Please refer to Figures 1-8 In the embodiment of the present application, the fastening assembly 3 comprises an annular groove 301 opened on one side of the working frame 101 and a flange plate 302 installed in the inner cavity of the annular groove 301, the flange plate 302 is fixedly connected with the inner wall of the annular groove 301 through the positioning bolt 303, and the positioning bolt 303 is distributed in multiple circumferential arrays, the flange plate 302 is fixedly connected with the die changing disc 304 away from the annular groove 301, the die changing disc 304 is provided with a positioning groove 305 away from the flange plate 302, which is used for positioning the die changing disc 304 and the profile mold, and the front and back surfaces of the working frame 101 are also provided with the fixing assembly 5 for fixing the position of the die changing disc 304 and the profile mold.

[0040] The fixing assembly 5 comprises a fixed frame 501 fixedly connected to the front and back surfaces of the working frame 101, a threaded moving rod 502 rotatably connected in the inner cavity of the fixed frame 501, a knob 503 installed on one side of the threaded moving rod 502, a moving block 504 threadedly connected to the outer circle of the threaded moving rod 502, and a fastener 505 fixedly connected to one side of the moving block 504 close to the die changing disc 304.

[0041] The inner cavity of the fixed frame 501 is also fixedly connected with a limiting rod 506, the moving block 504 is slidingly sleeved on the outer circle of the limiting rod 506, and the fastener 505 is in an arc-shaped structure and is used for being tightly attached to the profile mold to realize fixation.

[0042] The working principle of the embodiment of the present application is that the fastening assembly 3 plays an important role in realizing the position fixation between the device and the profile mold, the flange sheet 302 installed in the annular groove 301 on one side of the working frame 101 is fixedly connected with the inner wall of the annular groove 301 through a plurality of groups of circumferentially arrayed positioning bolts 303, the mold changing disc 304 fixedly connected on the side, away from the annular groove 301, of the flange sheet 302 is accurately positioned with the profile mold through the positioning groove 305 formed on the mold changing disc 304, and the accuracy of the connection between the two is ensured.

[0043] The fixed assembly 5 installed on the front face and the back face of the working frame 101 further strengthens the position fixation effect of the mold changing disc 304 and the profile mold, the threaded moving rod 502 rotatingly connected in the inner cavity of the fixed frame 501 is rotated under the driving of the knob 503, the moving block 504 threadedly connected on the outer circle of the threaded moving rod 502 is moved, and then the fastener 505 fixedly connected on the side, close to the mold changing disc 304, of the moving block 504 is moved close to and tightly attached to the profile mold, so that stable fixation is realized, and the convenience and stability of the mold changing operation are ensured in the whole process, and the production efficiency is improved.

[0044] Embodiment 3;

[0045] Please refer to Figures 1-8 In the embodiment of the present application, the sealing assembly 1 comprises a sealing plate 102 slidingly connected on one side of the working frame 101, a limiting groove 103 is formed on one side of the working frame 101, a limiting block 104 is fixedly connected on one side of the sealing plate 102, the limiting block 104 is slidingly connected in the inner cavity of the limiting groove 103, and the limiting block 104 and the limiting groove 103 are both in a convex letter-shaped structure, the sealing plate 102 is provided with two groups and is vertically distributed, a sealing shell 105 is fixedly connected on one side of each of the sealing plates 102, a sealing gasket is fixedly connected on the opposite side of the sealing shells 105 located at the top and the bottom, for sealing in the assembling process of the sealing shells 105, an extrusion channel 106 is formed in the inner cavity of the sealing shell 105, and a self-locking assembly 6 is further installed between the sealing plates 102.

[0046] The self-locking assembly 6 comprises self-locking blocks 601 installed on both sides of the sealing plate 102, a positioning column 602 is fixedly connected on the bottom of the self-locking block 601 located at the top, a positioning hole 603 is formed in the inner cavity of the self-locking block 601 located at the bottom, and the size of the positioning hole 603 is matched with that of the positioning column 602, a self-locking plate 604 is hingedly connected on one side of the self-locking block 601 located at the top, a self-locking hole 605 is formed on the bottom of the self-locking plate 604, and the size of the self-locking hole 605 is matched with that of the positioning column 602.

[0047] The working principle of the embodiment of the present application is that the sealing assembly 1 is a key part of the device to ensure the sealing performance in the forming process. The sealing plate 102 slidingly connected on one side of the working frame 101 is fixedly connected with the limiting block 104 on one side, which is slidingly connected in the inner cavity of the limiting groove 103 opened on one side of the working frame 101. The limiting block 104 and the limiting groove 103 are both convex structures, which helps to keep the sealing plate 102 stable during movement. Meanwhile, the sealing shell 105 fixedly connected on one side of the two groups of vertically distributed sealing plates 102 is fixedly connected with the sealing gasket on the opposite side, which can form a good sealing effect during assembly of the sealing shell 105, preventing leakage of the forming material. The self-locking assembly 6 installed between the sealing plates 102 further enhances the reliability of the sealing assembly 1. The positioning column 602 at the bottom of the top self-locking block 601 matches the positioning hole 603 in the inner cavity of the bottom self-locking block 601. When it is necessary to fix the sealing position, the positioning column 602 is inserted into the positioning hole 603, and the self-locking plate 604 hinged on one side of the top self-locking block 601 can be matched with the positioning column 602 through the self-locking hole 605 at the bottom, realizing the self-locking function of the sealing assembly 1.

[0048] Working principle: Place the device in the corresponding position of the extruder. At this time, the sealing assembly 1 on one side of the working frame 101 begins to play a role. The sealing plate 102 slidingly connected on one side of the working frame 101 is slidingly connected with the limiting block 104 fixedly connected on one side in the inner cavity of the limiting groove 103. The sealing shell 105 fixedly connected on one side of the two groups of vertically distributed sealing plates 102 is matched with the sealing gasket on the opposite side, realizing the assembly and sealing of the sealing assembly 1.

[0049] In the clamping assembly 2, rotating the handle 203 drives the threaded lifting rod 202 to rotate and lift in the threaded hole 201, and then makes the lifting block 204 connected with the threaded lifting rod 202 through the bearing to move up and down. The sliding blocks 206 on both sides of the lifting block 204 slide in the sliding grooves 205 on the inner wall of the working frame 101, ensuring the stability of the lifting block 204. At the same time, the buffer assembly 4 in the inner cavity of the lifting block 204 also participates in the work. The buffer plate 402 in the buffer groove 401 is connected with the telescopic rod 404 through the two fixed blocks 403 on the top, and cooperates with the buffer spring 406 on the outer circle of the telescopic rod 404, buffers the impact force in the clamping process of the extruder, and guarantees the stability of the connection between the device and the extruder.

[0050] In terms of position fixation between the device and the profile mold, the fastening assembly 3 first passes through the flange sheet 302 in the annular groove 301 on one side of the working frame 101, and is fixedly connected with the inner wall of the annular groove 301 through a plurality of circumferentially arrayed positioning bolts 303. The positioning groove 305 on the mold changing disc 304 fixedly connected on the side away from the annular groove 301 of the flange sheet 302 is precisely positioned with the profile mold

[0051] When the die profile needs to be replaced, reverse the handle 203, drive the threaded lifting rod 202 to reverse rotation, the lifting block 204 separates from the roller assembly 405, and the clamping force is released. Put the pre-loaded "new module", that is, another set of die profiles into the extruder port in alignment with the die changing disc 304, rotate the handle 203 in the forward direction, and the roller assembly 405 presses the extruder flange to complete the quick locking of the device-extruder. The flange sheet 302 and the annular groove 301 are coaxial by nature, and do not need to be re-aligned.

[0052] The fixed assembly 5 on the front and back of the working frame 101 starts to work. The threaded moving rod 502 in the inner cavity of the fixed frame 501 rotates under the drive of the knob 503. The moving block 504 connected with the threaded moving rod 502 rotates, and the moving block 504 connected with the arc-shaped fastener 505 on the side close to the die changing disc 304 slides along the outer circle of the fixedly connected limiting rod 506 in the inner cavity of the fixed frame 501, and then moves to the direction of the profile die and tightly adheres to it, realizing stable fixation.

[0053] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle profile mold quick mold changing device, characterized in that, Include: Work frame (101), one side of the work frame (101) is provided with a sealing assembly (1), which is used for sealing work in the forming process; Positioning mechanism, the positioning mechanism is installed on one side of the work frame (101), which is used for positioning between the device and the extruder and the profile die, the positioning mechanism comprises a clamping assembly (2) and a fastening assembly (3), the clamping assembly (2) is installed in the inner cavity of the work frame (101), and is used for fixing the position of the device and the extruder, the fastening assembly (3) is installed on one side of the work frame (101), and is used for fixing the position between the device and the profile die.

2. The quick die changing device for a new energy vehicle profile die according to claim 1, characterized in that: The clamping assembly (2) comprises threaded holes (201) opened in the top and bottom of the work frame (101), threaded holes (201) are threadedly connected with threaded lifting rods (202) in the inner cavity, the outer circle of the threaded lifting rod (202) is provided with a crank (203), one end of the threaded lifting rod (202) located in the inner cavity of the work frame (101) is provided with a lifting block (204), the threaded lifting rod (202) and the lifting block (204) are rotatably connected through the bearing, the inner cavity of the lifting block (204) is also provided with a buffer assembly (4), which is used for buffering during clamping with the extruder.

3. The quick die changing device for a new energy vehicle profile die according to claim 2, characterized in that: The buffer assembly (4) comprises a buffer groove (401) opened in the inner cavity of the lifting block (204), the buffer groove (401) is hingedly connected with a buffer plate (402) in the inner cavity, and the buffer plate (402) is made of rubber material, the two sides of the top of the buffer plate (402) are fixedly connected with a fixed block (403), the top of the fixed block (403) is provided with a telescopic rod (404), and the top of the telescopic rod (404) is provided with a roller assembly (405).

4. The quick die changing device for a new energy vehicle profile die according to claim 3, characterized in that: The buffer assembly (4) further comprises a buffer spring (406) installed on the outer circle of the telescopic rod (404), the top of the buffer spring (406) is fixedly connected with the bottom of the roller assembly (405), and the bottom of the buffer spring (406) is fixedly connected with the top of the fixed block (403), which is used for buffering during clamping of the extruder.

5. The quick die changing device for a new energy vehicle profile die according to claim 2, characterized in that: The inner wall of the work frame (101) is provided with a sliding groove (205), and the two sides of the lifting block (204) are fixedly connected with a sliding block (206), the sliding block (206) is slidably connected in the inner cavity of the sliding groove (205), which is used to improve the stability of the lifting block (204).

6. The quick die changing device for a new energy vehicle profile die according to claim 1, characterized in that: The fastening assembly (3) comprises an annular groove (301) formed on one side of the working frame (101) and a flange plate (302) installed in the inner cavity of the annular groove (301), the flange plate (302) is fixedly connected with the inner wall of the annular groove (301) through positioning bolts (303), the positioning bolts (303) are distributed in multiple circumferential arrays, the flange plate (302) is fixedly connected with a die changing disc (304) away from one side of the annular groove (301), the die changing disc (304) is fixedly connected with a positioning groove (305) away from one side of the flange plate (302), the positioning groove (305) is used for positioning the die changing disc (304) and the profile die, and the front and back surfaces of the working frame (101) are also provided with a fixing assembly (5) for fixing the position of the die changing disc (304) and the profile die.

7. The quick die changing device for a new energy vehicle profile die according to claim 6, characterized in that: The fixing assembly (5) comprises a fixing frame (501) fixedly connected with the front and back surfaces of the working frame (101), a threaded moving rod (502) rotatably connected in the inner cavity of the fixing frame (501), a knob (503) installed on one side of the threaded moving rod (502), and a moving block (504) threadedly connected with the outer circle of the threaded moving rod (502), and a fastener (505) fixedly connected with one side of the moving block (504) close to the die changing disc (304).

8. The quick die changing device for a new energy vehicle profile die according to claim 7, characterized in that: The inner cavity of the fixing frame (501) is also fixedly connected with a limiting rod (506), the moving block (504) is slidably sleeved on the outer circle of the limiting rod (506), and the fastener (505) is in an arc structure and used for tightly fixing the profile die.

9. The quick die changing device for a new energy vehicle profile die according to claim 1, characterized in that: The sealing assembly (1) comprises a sealing plate (102) slidably connected on one side of the working frame (101), a limiting groove (103) formed on one side of the working frame (101), a limiting block (104) fixedly connected with one side of the sealing plate (102), and the limiting block (104) is slidably connected in the inner cavity of the limiting groove (103), and the limiting block (104) and the limiting groove (103) are both in a convex structure, the sealing plate (102) is provided with two groups and is vertically distributed, one side of the sealing plate (102) is fixedly connected with a sealing shell (105), the opposite sides of the sealing shells (105) located at the top and the bottom are both fixedly connected with sealing pads, the sealing shells (105) are used for sealing in the assembling process, an extrusion channel (106) is formed in the inner cavity of the sealing shell (105), and a self-locking assembly (6) is also installed between the sealing plates (102).

10. The quick die changing device for a new energy vehicle profile die according to claim 9, characterized in that: The self-locking assembly (6) comprises a self-locking block (601) installed on both sides of the sealing plate (102), a positioning column (602) fixedly connected with the bottom of the self-locking block (601) located at the top, a positioning hole (603) formed in the inner cavity of the self-locking block (601) located at the bottom and matched with the size of the positioning column (602), a self-locking plate (604) hinged on one side of the self-locking block (601) located at the top, and a self-locking hole (605) formed in the bottom of the self-locking plate (604) and matched with the size of the positioning column (602).

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