CN115570054A - Integrated stamping die and process for electric vehicle door welding assembly - Google Patents

Abstract

The invention discloses an integrated stamping die and a process for an electric car door welding assembly, and relates to the field of stamping dies. In order to solve the problem that in the prior art, when the mold is opened, the movable plate is pushed out forcefully, which may easily cause damage to the car door, and it is not efficient to manually unload the material. An integrated stamping die for electric vehicle door welding assembly, comprising a mounting base, a first mounting groove is opened on the upper surface of the mounting base, a ejection mechanism is installed in the first mounting groove, and a blanking mechanism is installed on the ejection mechanism mechanism, a support mechanism is installed on both sides of the first installation groove, an upper mold is installed on the support mechanism, and a lower mold is installed on the first installation groove. The integrated stamping die and process of electric car door welding assembly is simple to operate, ensures the smooth progress of demoulding, avoids damage to the car door during the demoulding process, improves the efficiency and precision of mold forming, and realizes The electric car door is automatically unloaded without manual adjustment, which improves the efficiency of unloading.

Description

An integrated stamping die and process for electric vehicle door welding assembly

technical field

The invention relates to the technical field of stamping dies, in particular to an integrated stamping die and process for electric vehicle door welding assemblies.

Background technique

In the electric vehicle component system, the car door is one of the main parts of the car body, providing the driver and passengers with access to the vehicle. The invention with the application number CN201810584541.1 discloses a stamping device for integrated forming of a car door, including a frame, a stamping workbench is arranged on the frame, a lower mold is arranged above the stamping workbench, and the frame is fixed There is a lifting cylinder, the free end of the lifting cylinder is fixed with a stamping plate, an upper mold is arranged under the stamping plate, the upper mold is located directly above the lower mold, and an auxiliary blanking structure is arranged on the stamping workbench, The auxiliary blanking structure includes a vertical bar, and the vertical bar is provided with an upper horizontal bar and a lower horizontal bar arranged horizontally. The end of the lower horizontal bar is hinged with a movable plate, and the movable plate is located above the lower horizontal bar. A spring is arranged between the movable plate and the lower cross bar, and the vertical bar is slidably connected to the stamping workbench. The invention provides an auxiliary blanking structure for auxiliary blanking of the stamped car door, and can be easily and conveniently taken out when the door is stuck in the mold; the invention is suitable for forming a car door with a horizontal rear edge of the mold. The mold also has the following defects in use:

1. When opening the mold, by moving the auxiliary blanking structure, if the door is stuck on the lower mold, the movable plate on the lower cross bar will push out the door; if the door is stuck on the upper mold, during the reset and upward movement of the upper mold, The door is limited by the upper cross bar, and the material is unloaded. The door is ejected through the movable plate. The movable plate is set on both sides of the lower mold. When the door is unloaded, the material is unloaded through the movable plate on both sides. When the door card is tight, the movable plate will be forced out, which will easily cause damage to the door;

2. By moving the auxiliary blanking structure, the upper crossbar contacts the second inclined surface, or the lower crossbar contacts the inclined surface, and the auxiliary blanking structure is continuously moved, so that the door stuck in the upper mold or the lower mold is convenient for unloading. Unloading by hand is not efficient.

Contents of the invention

The purpose of the present invention is to provide an integrated stamping die and process for electric car door welding assembly, which facilitates the fixing and separation of the upper die on the support mechanism, and facilitates the feeding and unloading of electric car door stamping and forming, and is easy to operate. The set hydraulic rod performs telescopic movement to separate the left die from the right die, so that the electric door can smoothly leave the lower die, which ensures the smooth progress of demoulding, avoids damage to the door during the demoulding process, and improves The efficiency and precision of mold forming are improved, and the stamping and forming of the electric car door is facilitated. By starting the first electric telescopic rod, lifting the feeding mechanism upwards, and starting the second electric telescopic rod, the moving plate is separated from the ejector plate, and the electric car door is realized. Automatic blanking is performed without manual adjustment, which improves the working efficiency of blanking and solves the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

An integrated stamping die for electric vehicle door welding assembly, comprising a mounting base, a first mounting groove is opened on the upper surface of the mounting base, a ejection mechanism is installed in the first mounting groove, and a blanking mechanism is installed on the ejection mechanism mechanism, the two sides of the first installation groove are equipped with support mechanisms, the upper mold is installed on the support mechanism, the lower mold is installed on the first installation groove, and the positions of the lower mold and the upper mold are corresponding.

Further, slide grooves are provided on both sides of the upper surface of the installation base, slide rails are installed in the slide grooves, sliders are installed on the slide rails, and the sliders are fixed on the lower surface of the lower mold.

Further, the support mechanism includes a first support rod, a cylinder, a card slot, a hinge and a second support rod. There are four groups of cylinders, which are respectively fixed on the four corners of the upper surface of the installation base. The top of the left cylinder is installed There is a first support rod, and a draw-in groove is provided on the first support rod, and a second support rod is installed on the top of the right cylinder, and the second support rod is connected with the upper mold through a hinge.

Further, the upper mold includes a block, a punch, a support column and a top plate, a support column is fixedly installed on the lower surface of the top plate, the end of the support column away from the top plate is installed on the die, and a clamp is installed on the left side of the bottom surface of the top plate. piece.

Further, the clamping block includes a limiting block, a spring and a mounting cavity, the mounting cavity is arranged inside the clamping block, openings are provided on both sides of the mounting cavity, a limiting block is installed in the opening, and the limiting block is connected to the Together, the spring is provided with a telescopic sleeve.

Further, the position of the clamping block matches the position of the clamping slot, and the clamping block is clamped in the clamping slot, and the two sides of the inner wall of the clamping slot are provided with limiting slots matching the size of the limiting block.

Further, the lower mold includes a right die, a left die, a fixed block and a hydraulic rod, the outer sides of the right die and the left die are provided with a fixed block, and a hydraulic rod is installed between the fixed blocks, and the left concave The mold is provided with a protrusion, and the right die is provided with a connection groove, and the size and position of the protrusion match the size and position of the connection groove.

Further, the ejection mechanism includes a slide bar, a first connecting rod, a first mounting block, a first electric telescopic rod, a first pin shaft, a second connecting rod, a second pin shaft, a second mounting block and a movable block , the slide bar is mounted on the inner walls of both sides of the first installation groove, the slide bar is slidably connected with a movable block, the movable block is fixedly mounted with a second mounting block, and the second mounting block is movably connected with a first mounting block through a second pin shaft. The connecting rod and the second connecting rod, the first connecting rod and the second connecting rod are movably connected through the first pin shaft, and the end of the first connecting rod and the second connecting rod away from the second mounting block is installed with the first connecting rod through the second pin shaft The blocks are connected, the first mounting block and the first electric telescopic rod are all installed on the lower surface of the blanking mechanism, and the end of the first electric telescopic rod away from the blanking mechanism is fixed on the bottom of the first installation groove.

Further, the unloading mechanism includes an ejector plate, a second electric telescopic rod, a moving plate, a groove and a second installation groove, a groove is opened on the ejector plate, and a second installation groove is opened on the inner wall of the groove , the second electric telescopic rod is installed in the second installation groove, the end of the second electric telescopic rod away from the second installation groove is fixed on the moving plate, the size of the moving plate matches the size of the groove, and the middle position of the lower die is provided with Slot, the size of the slot matches the size of the ejector plate, and the ejector plate is installed in the slot.

The present invention provides another solution, a manufacturing process of an integrated stamping die for an electric vehicle door welding assembly, comprising the following steps:

Step 1: Place the material of the electric car door in the lower mold, and clamp the block on the upper mold into the slot on the support mechanism. At this time, the limit block on the block is stuck in the limit slot under the action of the spring , to fix the upper mold.

Step 2: Then start the air cylinder, press down the upper mold, and stamp and form the electric door material in the punch cavity of the lower mold. Leave the limit slot under the action.

Step 3: Start the hydraulic lever to separate the left die from the right die, and start the first electric telescopic rod at the same time to jack up the blanking mechanism to jack up the stamped electric car door and demould the electric car door.

Step 4 Start the second electric telescopic rod, and the second electric telescopic rod performs a stretching motion to move the electric car door outward, away from the ejector plate, and unload the electric car door.

Compared with prior art, the beneficial effect of the present invention is:

1. An integrated stamping die and process for an electric vehicle door welding assembly of the present invention, the limit blocks on both sides of the block are clamped into or out of the limit groove under the action of spring force, which facilitates the upper die on the support mechanism The fixing and separation of the electric door is convenient for feeding and unloading the stamping forming of the electric car door. The operation is simple. The hydraulic rod is set for telescopic movement. The car door can leave the lower mold smoothly, which ensures the smooth progress of demoulding, avoids the damage of the car door in the process of demoulding, improves the efficiency and precision of mold forming, and the protrusion is stuck in the connecting groove, which is convenient for the left concave The mold and the right die are fixed together, which facilitates the punching and forming of the electric vehicle door.

2. The integrated stamping die and process of the electric car door welding assembly of the present invention, by starting the first electric telescopic rod, jacking up the blanking mechanism, the electric car door top that will be stamped and formed on the ejector plate At the same time, by starting the second electric telescopic rod, the second electric telescopic rod is stretched, so that the moving plate is separated from the ejector plate, and the electric door is moved outward, so that the electric door can be automatically unloaded without manual labor Make adjustments to improve the work efficiency of blanking.

Description of drawings

Fig. 1 is the schematic diagram of the one-piece stamping die of a kind of electric car door welding assembly of the present invention;

Fig. 2 is a partial structural schematic diagram of an integrated stamping die of an electric vehicle door welding assembly of the present invention;

Fig. 3 is a structural schematic diagram of the mounting base of an integrated stamping die of an electric vehicle door welding assembly of the present invention;

Fig. 4 is a structural schematic diagram of an upper die of an integrated stamping die of an electric vehicle door welding assembly of the present invention;

Fig. 5 is a schematic diagram of block structure of an integrated stamping die of an electric vehicle door welding assembly according to the present invention;

Fig. 6 is a schematic diagram of a supporting mechanism of an integrated stamping die of an electric door welding assembly according to the present invention;

Fig. 7 is a schematic diagram of the structure of the lower die of an integrated stamping die of an electric door welding assembly of the present invention;

Fig. 8 is a schematic diagram of an ejection mechanism of an integrated stamping die of an electric vehicle door welding assembly according to the present invention;

Fig. 9 is a schematic diagram of an integrated stamping die blanking mechanism of an electric vehicle door welding assembly according to the present invention.

In the figure: 1, installation base; 11, slide rail; 12, chute; 13, slider; 2, support mechanism; 21, first support rod; 22, cylinder; 23, slot; 24, hinge; 25, The second support bar; 3, upper mold; 31, block; 311, limit block; 312, spring; 313, installation cavity; 32, punch; 33, support column; 34, top plate; 4, lower mold; 41 , right die; 42, left die; 43, fixed block; 44, hydraulic rod; 5, first installation groove; 6, ejection mechanism; 61, slide bar; Installation block; 64, the first electric telescopic rod; 65, the first pin shaft; 66, the second connecting rod; 67, the second pin shaft; 68, the second installation block; 69, the movable block; 7, the blanking mechanism; 71. Ejection plate; 72. Second electric telescopic rod; 73. Moving plate; 71. Groove; 75. Second installation groove.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In order to solve the technical problem that when the existing stamping die is opened, the material is cut through the movable plates on both sides. If the door is locked tightly, the movable plate will be pushed out forcefully, which will easily cause damage to the car door. Please refer to Figure 1- Figure 7, this embodiment provides the following technical solutions:

An integrated stamping die for an electric vehicle door welding assembly, comprising a mounting base 1, a first mounting groove 5 is opened on the upper surface of the mounting base 1, an ejection mechanism 6 is installed in the first mounting groove 5, and the ejection mechanism 6 is A blanking mechanism 7 is installed, a support mechanism 2 is installed on both sides of the first installation groove 5, a patrix 3 is installed on the support mechanism 2, a lower mold 4 is installed on the first installation groove 5, the lower mold 4 and the upper mold 3 Corresponding to the position, the two sides of the upper surface of the installation base 1 are provided with chute 12, the slide rail 11 is installed in the chute 12, and the upper slide rail 11 is slidably equipped with a slider 13, and the slider 13 is fixed on the bottom of the lower mold 4. On the lower surface, the slide block 13 moves back and forth on the slide rail 11 to facilitate the separation of the lower mold 4 and ensure the smooth progress of demoulding.

The support mechanism 2 includes a first support rod 21, a cylinder 22, a draw-in slot 23, a hinge 24 and a second support rod 25. There are four groups of cylinders 22, which are respectively fixed on the four corners of the upper surface of the mounting base 1. The left cylinder The top of the cylinder 22 is equipped with a first support rod 21, the first support rod 21 is provided with a card slot 23, the top of the right cylinder 22 is equipped with a second support rod 25, and the second support rod 25 is connected with the upper mold 3 through a hinge 24 , the cylinder 22 is used to press down the upper die 3 to punch the electric car door, and complete the integral stamping of the electric car door. The power door stamping went smoothly.

Upper mold 3 comprises block 31, punch 32, support column 33 and top plate 34, and the lower surface of top plate 34 is fixedly equipped with support column 33, and the end of support column 33 away from top plate 34 is installed on the die 32, and top plate 34 lower surface A block 31 is installed on the left side of the block. The block 31 includes a limit block 311, a spring 312 and an installation cavity 313. The installation cavity 313 is arranged inside the block 31. Openings are provided on both sides of the installation cavity 313, and the opening is installed The limit block 311 is connected together by the spring 312, the spring 312 is provided with a telescopic sleeve, the position of the block 31 matches the position of the slot 23, and the block 31 is stuck in the slot 23, Both sides of the inner wall of the draw-in groove 23 are provided with limiting grooves matching the size of the limiting block 311. The elasticity of the spring 312 makes the limiting block 311 stretchable in the opening, making it convenient for the limiting block 311 to be snapped into the limiting groove. easy to use.

The lower die 4 includes a right die 41, a left die 42, a fixed block 43 and a hydraulic rod 44. The outer walls of the right die 41 and the left die 42 are provided with a fixed block 43, and hydraulic pressure is installed between the fixed blocks 43. Rod 44, the left die 42 is provided with protrusions, and the right die 41 is provided with connecting grooves, the size and position of the protrusions are matched with the size and position of the connecting grooves, and the protrusions are stuck in the connecting grooves to facilitate the The left die 42 and the right die 41 are fixed together, which facilitates the punching and forming of the electric vehicle door.

Specifically, by clamping the clamping block 31 on the upper mold 3 in the clamping groove 23 on the support mechanism 2, the limiting block 311 on the clamping block 31 is clamped in the limiting groove under the action of the spring 312, which facilitates the upper The mold 3 is fixed, and by starting the cylinder 22, the upper mold 3 is pressed down on the electric car door for integral stamping. The bottom leaves the limit groove, so that the upper mold 3 can be separated from the support mechanism 2 smoothly, and it is convenient to unload the electric car door. Through the hydraulic rod 44, the left die 42 is separated from the right die 41, so that the electric car door can be smoothly Leaving the lower mold, avoiding damage to the door during the demoulding process, and improving the efficiency and precision of mold forming.

In order to solve the technical problem that the existing stamping dies are manually unloaded and the efficiency is not high, please refer to Figure 1, Figure 8 and Figure 9, and provide the following technical solutions:

The ejector mechanism 6 includes a slide bar 61, a first connecting rod 62, a first mounting block 63, a first electric telescopic rod 64, a first pin shaft 65, a second connecting rod 66, a second pin shaft 67, and a second mounting block 68 and movable block 69, slide bar 61 is installed on the both sides inner wall of the first mounting groove 5, slide bar 61 is connected with movable block 69, is fixedly installed with the second mounting block 68 on the movable block 69, the second mounting block 68 is movably connected with the first connecting rod 62 and the second connecting rod 66 through the second pin 67, the first connecting rod 62 and the second connecting rod 66 are movably connected through the first pin 65, the first connecting rod 62 and the second One end of the two connecting rods 66 away from the second mounting block 68 is connected with the first mounting block 63 through the second pin shaft 67, the first mounting block 63 and the first electric telescopic rod 64 are all installed on the lower surface of the blanking mechanism 7, the first The end of the electric telescopic rod 64 away from the blanking mechanism 7 is fixed on the bottom of the first mounting groove 5, and the blanking mechanism 7 includes an ejector plate 71, a second electric telescopic rod 72, a moving plate 73, a groove 74 and a second mounting groove 75, a groove 74 is provided on the ejector plate 71, a second installation groove 75 is provided on the inner wall of the groove 74, and a second electric telescopic rod 72 is installed in the second installation groove 75, and the second electric telescopic rod 72 is far away from the first One end of the two installation grooves 75 is fixed on the moving plate 73 , and the size of the moving plate 73 matches the size of the groove 74 .

Specifically, by activating the first electric telescopic rod 64, the unloading mechanism 7 is lifted up, and the electric car door stamped and formed on the ejector plate 71 is lifted up, and at the same time, by starting the second electric telescopic rod 72, the second electric telescopic rod 72 is activated. The rod 72 is stretched, so that the moving plate 73 leaves the ejector plate 71, and the electric car door is moved outwards to realize automatic blanking of the electric car door without manual adjustment, which improves the working efficiency of blanking.

The present invention provides another solution, a manufacturing process of an integrated stamping die for an electric vehicle door welding assembly, comprising the following steps:

Step 1: Place the electric vehicle door material in the lower die 4, and clamp the block 31 on the upper die 3 into the slot 23 on the supporting mechanism 2. Under the action, it is stuck in the limit groove, and the upper mold 3 is fixed.

Step 2: Then start the cylinder 22, press down the upper mold 3, and stamp and form the electric vehicle door material in the punch cavity of the lower mold 4 in one piece. After stamping, pull the upper mold 3 upwards, and the limit on both sides of the clamping block 31 The block 311 leaves the limiting slot under the force of the spring 312 .

Step 3: start the hydraulic lever 44, make the left die 42 and the right die 41 move outward along the slide rail 11, separate the left die 42 and the right die 41, perform demoulding processing on the electric car door, and start the second die at the same time An electric telescopic rod 64 makes the second mounting block 68 move on the slide bar 61, so that the first connecting rod 62 and the second connecting rod 66 are lifted up, and the electric car door punched and formed on the unloading mechanism 7 is lifted up.

Step 4: Start the second electric telescopic rod 72, and the second electric telescopic rod 72 performs a stretching motion to move the electric car door outward, so that the electric car door leaves the ejector plate 71, and realizes automatic unloading of the electric car door.

To sum up, in the integrated stamping die and process of electric vehicle door welding assembly of the present invention, the limiting blocks 311 on both sides of the locking block 31 are stuck in or out of the limiting slots under the action of the elastic force of the spring 312, which is convenient. The fixation and separation of the upper mold 3 on the support mechanism 2 facilitates the feeding and unloading of the stamping and forming of the electric car door. The left die 42 is separated from the right die 41, so that the electric car door can smoothly leave the lower die, which ensures the smooth progress of demoulding, avoids damage to the car door during the demoulding process, and improves the efficiency and precision of mold forming , the protrusion is stuck in the connection groove, which is convenient for fixing the left die 42 and the right die 41 together, and facilitates the stamping of the electric car door. By starting the first electric telescopic rod 64, the second mounting block 68 is positioned on the slide rod 61, the first connecting rod 62 and the second connecting rod 66 installed on the second mounting block 68, under the upward action of the first electric telescopic rod 64, lift up the unloading mechanism 7, and push out the plate 71 lifts up the stamped electric car door, and at the same time, by starting the second electric telescopic rod 72, the second electric telescopic rod 72 is stretched, so that the moving plate 73 leaves the ejector plate 71, and the electric car door moves outward , to realize automatic blanking of the electric car door, and does not require manual adjustment, which improves the working efficiency of blanking.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (10)

1. An integrated stamping die for electric vehicle door welding assembly, comprising a mounting base (1), characterized in that, the upper surface of the mounting base (1) is provided with a first mounting groove (5), the first mounting groove Ejection mechanism (6) is installed in (5), and blanking mechanism (7) is installed on the ejection mechanism (6), and support mechanism (2) is installed on both sides of the first installation groove (5), and support mechanism ( 2) An upper mold (3) is installed on the top, and a lower mold (4) is installed on the first installation groove (5), and the position of the lower mold (4) corresponds to that of the upper mold (3). 2. The integral stamping die of a kind of electric vehicle door welding assembly as claimed in claim 1, is characterized in that, the two sides of the upper surface of described installation base (1) are provided with chute (12), and chute ( 12) slide rail (11) is installed in the interior, slide block (13) is installed slidingly on the slide rail (11), and slide block (13) is fixed on the lower surface of lower die (4). 3. The integrated stamping die of an electric vehicle door welding assembly according to claim 1, characterized in that, the support mechanism (2) includes a first support rod (21), a cylinder (22), a draw slot ( 23), hinge (24) and second support bar (25), four groups of cylinders (22) are arranged altogether, are respectively fixed on the four corners of the upper surface of mounting base (1), and the top of left cylinder (22) is installed There is a first support rod (21), and a draw-in groove (23) is provided on the first support rod (21), and a second support rod (25) is installed on the top of the right cylinder (22), and the second support rod (25) Connect with upper mold (3) by hinge (24). 4. The integrated stamping die for electric vehicle door welding assembly according to claim 1, characterized in that, the upper die (3) includes a block (31), a punch (32), a support column (33 ) and top plate (34), the lower surface of the top plate (34) is fixedly equipped with a support column (33), and the end of the support column (33) away from the top plate (34) is installed on the die (32), and the lower surface of the top plate (34) Block (31) is installed on the left side. 5. The integrated stamping die for electric vehicle door welding assembly according to claim 4, characterized in that, the clamping block (31) includes a limit block (311), a spring (312) and a mounting cavity (313 ), the installation cavity (313) is arranged inside the clamping block (31), and both sides of the installation cavity (313) are provided with openings, and a limit block (311) is installed in the opening, and the limit block (311) passes through the spring (312 ) are connected together, and a telescopic sleeve is provided in the spring (312). 6. The integrated stamping die of an electric vehicle door welding assembly according to claim 5, characterized in that, the position of the clamping block (31) matches the position of the clamping groove (23), and the clamping block ( 31) Be stuck in the card slot (23), and the two sides of the inner wall of the card slot (23) are provided with a limit slot matching the size of the limit block (311). 7. The integrated stamping die of an electric vehicle door welding assembly according to claim 1, wherein the lower die (4) comprises a right die (41), a left die (42), a fixing block (43) and hydraulic rod (44), the outer Bishan of right die (41) and left die (42) is all provided with fixed block (43), and hydraulic rod (44) is installed between the fixed block (43) , the left die (42) is provided with projections, and the right die (41) is provided with connection grooves, and the size and position of the projections are matched with the size and position of the connection grooves. 8. The integrated stamping die of electric vehicle door welding assembly according to claim 1, characterized in that, the ejection mechanism (6) comprises a slide bar (61), a first connecting rod (62), a second One mounting block (63), the first electric telescopic rod (64), the first pin shaft (65), the second connecting rod (66), the second pin shaft (67), the second mounting block (68) and the movable block (69), the slide bar (61) is installed on the both sides inner wall of the first mounting groove (5), and the slide bar (61) is slidably connected with the movable block (69), and the second movable block (69) is fixedly installed on the slide bar (69). The mounting block (68), the second mounting block (68) is movably connected with the first connecting rod (62) and the second connecting rod (66) by the second bearing pin (67), the first connecting rod (62) and the second connecting rod Two connecting rods (66) are movably connected by the first pin shaft (65), and the end of the first connecting rod (62) and the second connecting rod (66) away from the second mounting block (68) is passed through the second pin shaft (67) Connected with the first installation block (63), the first installation block (63) and the first electric telescopic rod (64) are installed on the lower surface of the unloading mechanism (7), and the first electric telescopic rod (64) is far away from the unloading mechanism One end of (7) is fixed on the bottom of the first mounting groove (5). 9. An integrated stamping die for electric vehicle door welding assembly according to claim 1, characterized in that, the blanking mechanism (7) includes an ejector plate (71), a second electric telescopic rod (72) , moving plate (73), groove (74) and second installation groove (75), offer groove (74) on the ejector plate (71), offer second installation groove on the inner wall of groove (74) (75), the second electric telescopic rod (72) is installed in the second mounting groove (75), and the second electric telescopic rod (72) is fixed on the mobile plate (73) away from an end of the second mounting groove (75), and moves The size of the plate (73) matches the size of the groove (74), the middle position of the lower die (4) is provided with a slot, the size of the slot matches the size of the ejector plate (71), and the ejector plate ( 71) Installed in the slot. 10. A manufacturing process for an integrated stamping die of an electric vehicle door welding assembly according to claims 1-9, characterized in that it comprises the following steps: Step 1: Place the electric car door material in the lower mold (4), and clamp the clamping block (31) on the upper mold (3) in the clamping groove (23) on the support mechanism (2). At this time, the clamping block ( The limit block (311) on 31) is stuck in the limit groove under the action of the spring (312), and the upper mold (3) is fixed; Step 2: Then start the cylinder (22), press down the upper mold (3), and carry out integral stamping and forming of the electric car door material in the punch cavity of the lower mold (4), after stamping and forming, pull the upper mold (3) upwards, The limiting blocks (311) on both sides of the clamping block (31) leave the limiting groove under the action of the elastic force of the spring (312); Step 3: Start the hydraulic lever (44) to separate the left die (42) from the right die (41), and start the first electric telescopic rod (64) at the same time to jack up the blanking mechanism (7) to press and form Lift up the electric car door and demould the electric car door; Step 4: Start the second electric telescopic rod (72), and the second electric telescopic rod (72) performs a stretching motion to move the electric car door outwards, leave the ejector plate (71), and unload the electric car door.

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