Forming die and forming method of front top cover outer plate

Abstract

The invention discloses a front top cover outer plate forming die and method, the forming die comprises an upper die plate and a lower die plate which are oppositely arranged, and a waste cutting assembly arranged between the upper die plate and the lower die plate, the blade height of a second waste cutter is 1-2 times of the thickness of a stamping material, and the blade height of the second waste cutter is 1-2 times of the thickness of the stamping material. The cutting-in amount of the cutting edges of the second waste cutter and the first waste cutter is 1-2 times of the thickness of the stamping material, the separated waste is sheared again to form dispersed waste sections through linkage operation of the first waste cutter and the second waste cutter, and in the shearing process of the waste, after the ends of the waste sections are cut off, the waste sections are cut off, and then the stamping material is cut off. When the waste materials are ejected out of the cutting edge of the second waste material cutter after being deformed in the cutting process, the waste materials are effectively prevented from being hung on the cutter back of the second waste material cutter, waste material clamping stagnation is avoided, the operation smoothness is improved, continuous guarding and intervention of workers are avoided, and the production operation efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile stamping parts manufacturing, and in particular to a forming die and a forming method for a front roof outer panel. Background Art

[0002] With the improvement of the production automation level of automobile stamping parts and the widespread application of automated transmission of multi-station molds, various waste materials of stamping parts are required to automatically and smoothly slide out of the mold and the press workbench, fall into the waste pit on the ground, and then be transported away by the underground conveyor belt.

[0003] In the production process of the front cover outer panel on the car body roof, the stamping direction is first determined based on the minimum drawing depth, and the shape of the pressing surface is close to the final part shape to ensure balanced material flow in all parts; then the trimming side is trimmed and punched, and the local shape surface is shaped at the same time; then the circumferential shaping operation is performed, and the contour line of the front windshield overlap is shaped at the same time. After trimming the large hole of the sunroof, the water trough is shaped on the side; then the trimming punching side is punched and flanging is performed. In the automated production process, the blanking waste at the overlap of the front windshield is not discharged smoothly, and the waste is stuck between the waste knives. The poor sliding of the waste affects the production rhythm, and there are also safety hazards. Summary of the invention

[0004] In view of the defects existing in the prior art, the present application provides a molding die and a molding method for a front roof outer panel to solve the problem that waste material is stuck and affects production operations during the molding process of the front roof outer panel in the prior art.

[0005] The above-mentioned purpose of the present application is mainly achieved through the following technical solutions:

[0006] A molding die for a front roof outer panel, the molding die comprising:

[0007] An upper mold plate and a lower mold plate are arranged opposite to each other, and a blanking assembly is provided between the upper mold plate and the lower mold plate, and the blanking assembly is used to separate waste materials from the punching material;

[0008] A waste cutting assembly is arranged between the upper template and the lower template, and comprises a first waste knife arranged on the upper template, and a second waste knife arranged on the lower template, the blade height of the second waste knife is 1-2 times the thickness of the stamping material, and the cutting amount of the second waste knife and the first waste knife is 1-2 times the thickness of the stamping material. After the blanking assembly separates the waste on the stamping material, the waste cutting assembly cuts off the waste and forms a waste segment, and the opposite side of the blade of the second waste knife has a working space for the waste segment to slide out.

[0009] In an optional embodiment, a side of the second waste cutter away from the first waste cutter is provided with a chamfer.

[0010] In an optional embodiment, the width of the blade back of the second waste knife is 15mm-20mm, and a back avoidance space is provided on a side of the second waste knife away from the first waste knife.

[0011] In an optional embodiment, a pad is provided between the first waste knife and the upper template, and the thickness of the pad is not less than the thickness of the stamping material, so that the cutting amount of the first waste knife enters the back-space avoidance space, and the edge of the waste segment moves from the blade band of the second waste knife to the back-space avoidance space.

[0012] In an optional embodiment, the punching assembly includes an upper trimming blade and a lower trimming blade for shearing the punching material, the upper trimming blade is fixed on the upper template, the lower trimming blade is fixed on the lower template, and an avoidance gap is provided between the upper trimming blade and the second waste knife.

[0013] In an optional embodiment, the upper trimming blade includes a plurality of continuous bevel blade segments, the plurality of bevel blade segments are wavy, the edge height of the bevel blade segments is a straight line inclination of 3mm-8mm, and the edge length of the bevel blade segments is 220mm-280mm.

[0014] In an optional embodiment, the side length of the first scrap knife is greater than the cutting edge length, and the side length of the second scrap knife is greater than the cutting edge length.

[0015] In an optional embodiment, the waste cutting assemblies are provided in a plurality of groups and are arranged at intervals between the upper template and the lower template, and waste guide rods are provided between adjacent waste cutting assemblies for guiding the discharge of the waste segments.

[0016] In an optional embodiment, the upper template is provided with a pin ejection device for material removal.

[0017] Based on the same inventive concept, the present application also provides a method for forming a front roof outer panel, characterized in that the forming method is performed using the above-mentioned forming mold, and the forming method comprises:

[0018] The punch is placed between a punch and a die in a blanking assembly;

[0019] The upper mold plate and the lower mold plate are driven by a driving mechanism to perform a first-stage pressing against each other, and the blanking assembly separates waste material from the punching material;

[0020] The upper template and the lower template are continuously driven by the driving mechanism to perform a second-stage pressing against each other, and the first waste knife and the second waste knife in the waste cutting assembly shear the waste to form a waste segment, and the waste segment is separated from the waste cutting assembly and discharged;

[0021] The driving mechanism drives the upper mold plate and the lower mold plate to separate from each other, thereby completing the stamping operation of the front top cover outer panel.

[0022] Compared with the prior art, the advantages of this application are:

[0023] The forming die of the front top cover outer panel in the present application comprises: an upper template and a lower template arranged relatively to each other, and a waste cutting assembly arranged between the upper template and the lower template, a blanking assembly is arranged between the upper template and the lower template, and the blanking assembly is used to separate waste on the stamping material, the waste cutting assembly comprises a first waste knife arranged on the upper template, and a second waste knife arranged on the lower template, the blade height of the second waste knife is 1-2 times the thickness of the stamping material, and the cutting amount of the blade of the second waste knife and the first waste knife is 1-2 times the thickness of the stamping material, when the blanking assembly separates the waste on the stamping material, the waste cutting assembly cuts off the waste and forms waste The upper template and the lower template are used to form a plurality of waste material segments, and the opposite side of the cutting edge of the second waste knife has an operating space for the waste material segment to slide out. When the forming operation is performed, the waste material is sheared by the punching assembly through the relative operation of the upper template and the lower template, and the separated waste material is sheared again by the linkage operation of the first waste knife and the second waste knife to form dispersed waste material segments. During the shearing process of the waste material, the end of the waste material segment slides smoothly from the cutting edge of the second waste knife to the operating space after being cut off. When the waste material is deformed during the cutting process and then pops out of the cutting edge of the second waste knife, it is effectively prevented from hanging on the back of the second waste knife, thereby preventing the waste material from being stuck, thereby improving the smoothness of the operation, avoiding continuous manual supervision and intervention, and improving the production operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic diagram of a molding die provided in an embodiment of the present application when shearing waste;

[0026] Figure 2 A partial schematic diagram of a second waste cutter provided in an embodiment of the present application;

[0027] Figure 3 A partial side view of the upper trimming edge provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of a molding method according to an embodiment of the present invention;

[0029] In the figure: 101, first scrap knife; 102, second scrap knife; 103, chamfer; 201, upper trimming blade; 202, lower trimming blade; 203, bevel blade section; 300, scrap section. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. The specific structures and functional details disclosed herein are only used to describe the exemplary embodiments of the present invention. However, the present invention can be embodied in many alternative forms, and it should not be understood that the present invention is limited to the embodiments set forth herein.

[0031] The front cover outer panel of the car is an important part of the car body. It is not only related to the appearance of the vehicle, but also involves the vehicle's safety performance, NVH (noise, vibration and roughness) performance and anti-dent performance. The front cover outer panel is a large stamping part, and its structure has an important impact on the mold and material costs. The production process involves stamping, welding, painting, assembly and other processes.

[0032] Generally speaking, the stamping process of the front roof outer panel of the car usually includes the following:

[0033] 1. Drawing: This is the first process of stamping. The flat blank is processed using a drawing die to form it into the desired shape. The drawing process is crucial to the surface quality of the outer panel because most of the shape is determined in this process.

[0034] 2. Trimming and punching: After drawing, the parts need to be trimmed to cut off the excess material on the periphery and punch holes to prepare for the subsequent flanging process. The trimming and punching die is used in this step to eliminate the burrs on the edge of the plate and to prepare for the subsequent process to cut off the waste.

[0035] 3. Flanging and side flanging: This is to form the three-dimensional shape of the edge of the part, which usually needs to be completed in several processes. The first flanging and side flanging uses a special mold to flanging or side flanging the edge of the part. Since it is impossible to complete all flanging and side flanging at one time, a second flanging and side flanging process may be required to complete the remaining parts.

[0036] 4. Shaping: After the flanging process, a shaping process may be required to ensure that the final shape and size of the part meet the design requirements.

[0037] 5. Inspection and deburring: After the stamping process is completed, the parts need to be inspected for quality, including removing burrs and ensuring surface quality.

[0038] 6. Cleaning and oiling: In order to protect the parts and prepare for subsequent welding or assembly processes, the stamped parts are usually cleaned and oiled.

[0039] Each step requires precise die design and process control to ensure part quality and consistency. In addition, the design of the stamping process also needs to consider factors such as material type, thickness, and desired final shape.

[0040] like Figure 1 , Figure 2 As shown, Figure 1 This is a schematic diagram of the molding die shearing waste provided in the embodiment of the present application. Figure 2 A partial schematic diagram of the second waste cutter 102 provided in an embodiment of the present application, a molding die for a front top cover outer panel, the molding die comprising an upper mold plate and a lower mold plate arranged relatively to each other, and a waste cutting assembly arranged between the upper mold plate and the lower mold plate, wherein:

[0041] The upper template and the lower template are arranged opposite to each other, and under the action of the driving mechanism, one of the upper template and the lower template can be used as a relative reference, and the other of the upper template and the lower template can be relatively displaced to complete the stamping operation of the front top cover outer panel. A blanking assembly is provided between the upper template and the lower template, and the blanking assembly is used to separate waste materials on the stamping material.

[0042] The waste cutting assembly is arranged between the upper template and the lower template, and comprises a first waste knife 101 arranged on the upper template, and a second waste knife 102 arranged on the lower template, the blade height of the second waste knife 102 is 1-2 times the thickness of the stamping material, and the cutting amount of the second waste knife 102 and the first waste knife 101 is 1-2 times the thickness of the stamping material. After the blanking assembly separates the waste on the stamping material, the waste cutting assembly cuts off the waste and forms a waste segment 300, and the first waste knife 102 is cut off. The opposite side of the cutting edge of the second waste knife 102 has a working space for the waste segment 300 to slide out. The cutting edge of the second waste knife 102 forms a shear between two adjacent waste segments 300. On the one hand, a stable shearing effect is maintained by the preset blade height and the cutting amount of the blade. On the other hand, the waste segment 300 close to the back of the second waste knife 102 can be smoothly discharged in the working space after being sheared, avoiding the two segments of the waste segment 300 from being abutted against the two second waste knives 102 during the sliding discharge process, thereby improving the discharge smoothness of the waste segment 300.

[0043] like Figure 1 , Figure 2 As shown, combined Figure 3 , Figure 3 A partial side view of the upper trimming blade 201 provided for an embodiment of the present application. In an optional embodiment, the working principle of the forming mold of the front top cover outer panel in the present application is: the forming mold includes an upper template and a lower template arranged relatively to each other, and a waste cutting component arranged between the upper template and the lower template, a blanking component is provided between the upper template and the lower template, and the blanking component is used to separate waste on the stamping material. The waste cutting component includes a first waste knife 101 arranged on the upper template, and a second waste knife 102 arranged on the lower template, the blade height of the second waste knife 102 is 1-2 times the thickness of the stamping material, and the cutting amount of the blade of the second waste knife 102 and the first waste knife 101 is 1-2 times the thickness of the stamping material. After the blanking component separates the waste on the stamping material, The waste cutting assembly cuts the waste and forms waste segments 300, and the opposite side of the cutting edge of the second waste knife 102 has an operating space for the waste segment 300 to slide out. When performing the forming operation, the upper template and the lower template are relatively operated, the blanking assembly is used to complete the shearing of the waste, and the first waste knife 101 and the second waste knife 102 are used to operate in conjunction with each other to shear the separated waste again to form dispersed waste segments 300. During the shearing process of the waste, the end of the waste segment 300 slides smoothly out of the cutting edge of the second waste knife 102 to the operating space after being cut off. When the waste is deformed during the cutting process and then pops out of the cutting edge of the second waste knife 102, it is effectively prevented from hanging on the back of the second waste knife 102, thereby preventing the waste from getting stuck, improving the smoothness of the operation, avoiding continuous manual supervision and intervention, and improving the production operation efficiency.

[0044] like Figure 2 As shown, in an optional embodiment, a chamfer 103 is provided on the side of the second waste knife 102 away from the first waste knife 101, so that the waste segment 300 can be smoothly discharged in the space provided by the chamfer 103. The setting of the chamfer 103 reduces the sticking, hooking, etc. of the waste segment 300 at non-cutting edge locations.

[0045] like Figure 1 , Figure 2 as well as Figure 3 As shown, in an optional embodiment, the blade back width of the second waste knife 102 is 15mm-20mm, and a back avoidance space is provided on the side of the second waste knife 102 away from the first waste knife 101. The blade back width of 15mm-20mm, on the basis of arranging the chamfer 103, further reduces the contact area between the waste segment 300 formed after the waste is cut off and the blade back of the second waste knife 102, thereby further improving the smoothness of the discharge of the waste segment 300.

[0046] In an optional embodiment, a pad is provided between the first waste knife 101 and the upper template, and the thickness of the pad is not less than the thickness of the stamping material, so that the cutting amount of the first waste knife 101 enters the back-space avoidance space, and the edge of the waste segment 300 moves from the blade band of the second waste knife 102 to the back-space avoidance space.

[0047] By setting a pad, the relative position adjustment of the preset first waste knife 101 can be achieved on the basic mold, thereby ensuring that the cutting amount of the first waste knife 101 reaches the target position without reprocessing the first waste knife 101, so as to ensure that the cut-off part of the waste segment 300 can be smoothly separated from the first waste knife 101 and the second waste knife 102 after the shearing is completed.

[0048] like Figure 1 , Figure 2 as well as Figure 3 As shown, in an optional embodiment, the punching assembly includes an upper trimming blade 201 and a lower trimming blade 202 for shearing the punching material, the upper trimming blade 201 is fixed on the upper template, the lower trimming blade 202 is fixed on the lower template, and an avoidance gap is provided between the upper trimming blade 201 and the second waste knife 102.

[0049] The upper trimming blade 201 and the lower trimming blade 202 also synchronously displace relative to each other under the relative movement of the upper template and the lower template to perform trimming operations, and the upper trimming blade 201 and the second waste knife 102 are staggered and arranged, and the avoidance gap between the upper trimming blade 201 and the second waste knife 102 enables the waste to be stably sheared by the upper trimming blade 201 and the lower trimming blade 202 during operation, and only under the further relative movement of the upper template and the lower template can the waste be cut into sections by the first waste knife 101 and the second waste knife 102, and the avoidance gap allows the shearing of the waste to have a certain operating gap, thereby maintaining the stability of the shearing of the waste, effectively avoiding the shearing of the waste by the upper trimming blade 201 and the lower trimming blade 202, and the shearing of the waste by the first waste knife 101 and the second waste knife 102 at the same time, and also avoiding spatial interference during shearing.

[0050] like Figure 1 , Figure 2 as well as Figure 3As shown, in an optional embodiment, the upper trimming blade 201 includes a plurality of continuous bevel blade segments 203, and the plurality of bevel blade segments 203 are wavy, and the edge height of the bevel blade segment 203 is a straight line inclined shape of 3mm-8mm, and the edge length of the bevel blade segment 203 is 220mm-280mm, so that when the trimming operation is performed, the waste is arranged through the bevel blade segment 203 of the upper trimming blade 201, and when the waste is sheared, the smoothness is improved while the local bounce amplitude of the waste is reduced.

[0051] like Figure 1 As shown, in an optional embodiment, the side length of the first waste knife 101 is greater than the blade length, and the side length of the second waste knife 102 is greater than the blade length. In actual setting, the side lengths of the first waste knife 101 and the second waste knife 102 can be greater than the blade length by more than 10 mm, so that when the waste segment 300 is sheared, there is suitable space for shearing and discharge.

[0052] In an optional embodiment, the waste cutting components are provided in multiple groups and are arranged at intervals between the upper template and the lower template. Waste guide rods are provided between adjacent waste cutting components to guide the discharge of the waste segments 300. The number and arrangement positions of the waste cutting components can be adaptively arranged according to actual production requirements.

[0053] In an optional embodiment, the upper mold plate is provided with a pin ejector for material removal, so as to assist the material removal operation by increasing the stroke and material removal force provided by the pin ejector. The pin ejector can be actually installed at a position where the center of gravity of the waste material changes the most, or at a position where the waste material can generate the maximum rotational turning moment, and the number of pin ejectors is determined according to the allowable degree of the mold structure.

[0054] like Figure 4 As shown, Figure 4 The present application provides a flow chart of a molding method according to an embodiment of the present application. Based on the same inventive concept, the present application also provides a molding method for a front roof outer panel, characterized in that the molding method is performed using the molding mold as described above, and the molding method includes:

[0055] The punch is placed between a punch and a die in a blanking assembly;

[0056] The upper mold plate and the lower mold plate are driven by a driving mechanism to perform a first-stage pressing against each other, and the blanking assembly separates waste material from the punching material;

[0057] The upper template and the lower template are continuously driven by the driving mechanism to perform a second-stage pressing against each other, and the first waste knife 101 and the second waste knife 102 in the waste cutting assembly shear the waste and form a waste segment 300, and the waste segment 300 is separated from the waste cutting assembly and discharged;

[0058] The driving mechanism drives the upper mold plate and the lower mold plate to separate from each other, thereby completing the stamping operation of the front top cover outer panel.

[0059] It should be understood that the terms first, second, etc. are only used to distinguish descriptions and should not be understood as indicating or suggesting relative importance. Although the terms first, second, etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another unit. For example, the first unit may be referred to as the second unit, and similarly, the second unit may be referred to as the first unit without departing from the scope of the exemplary embodiments of the present invention.

[0060] It should be understood that the term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another relationship between associated objects, indicating that two relationships may exist. For example, A / and B can represent two situations: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0061] It should be understood that in the description of the present invention, the terms "upper", "vertical", "inside", "outside" and the like indicate orientations or positional relationships that are customarily placed when the disclosed product is used, or are orientations or positional relationships that are customarily understood by those skilled in the art. They 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 should not be understood as a limitation on the present invention.

[0062] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] The terms used herein are only used to describe specific embodiments and are not intended to limit the exemplary embodiments of the present invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates the opposite meaning. It should also be understood that the terms "include", "comprising", "including", and / or "comprising" when used herein specify the existence of the claimed features, integers, steps, operations, units, and / or components, and do not exclude the existence or increase of one or more other features, quantities, steps, operations, units, components, and / or their combinations.

[0064] Specific details are provided in the following description to facilitate a complete understanding of the exemplary embodiments. However, it should be understood by those of ordinary skill in the art that the exemplary embodiments may be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may not be shown in unnecessary detail to avoid making the exemplary embodiments unclear.

[0065] The above is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

[0066] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field.

Claims

1. A molding die for a front roof outer panel, characterized in that: The molding die comprises: An upper mold plate and a lower mold plate are arranged opposite to each other, and a blanking assembly is provided between the upper mold plate and the lower mold plate, and the blanking assembly is used to separate waste materials from the punching material; A waste cutting assembly is arranged between the upper template and the lower template, and comprises a first waste knife arranged on the upper template, and a second waste knife arranged on the lower template, the blade height of the second waste knife is 1-2 times the thickness of the stamping material, and the cutting amount of the second waste knife and the first waste knife is 1-2 times the thickness of the stamping material. After the blanking assembly separates the waste on the stamping material, the waste cutting assembly cuts off the waste and forms a waste segment, and the opposite side of the blade of the second waste knife has a working space for the waste segment to slide out.

2. The molding die for the front roof outer panel as claimed in claim 1, characterized in that: A side of the second scrap cutter away from the first scrap cutter is provided with a chamfer.

3. The molding die for the front roof outer panel as claimed in claim 1, characterized in that: The width of the blade back of the second waste knife is 15mm-20mm, and a back avoidance space is provided on the side of the second waste knife away from the first waste knife.

4. The molding die for the front roof outer panel as claimed in claim 3, characterized in that: A pad is provided between the first waste knife and the upper template, and the thickness of the pad is not less than the thickness of the stamping material, so that the cutting amount of the first waste knife enters the back-space avoidance space, and the edge of the waste segment moves from the blade band of the second waste knife to the back-space avoidance space.

5. The molding die for the front roof outer panel as claimed in claim 1, characterized in that: The punching assembly includes an upper trimming blade and a lower trimming blade for shearing the punching material. The upper trimming blade is fixed on the upper template, the lower trimming blade is fixed on the lower template, and an avoidance gap is provided between the upper trimming blade and the second waste knife.

6. The molding die for the front roof outer panel as claimed in claim 5, characterized in that: The upper trimming blade includes a plurality of continuous bevel blade sections, the plurality of bevel blade sections are wavy, the edge height of the bevel blade section is a straight line inclination of 3mm-8mm, and the edge length of the bevel blade section is 220mm-280mm.

7. The molding die for the front roof outer panel as claimed in claim 1, characterized in that: The side length of the first scrap knife is greater than the length of the cutting edge, and the side length of the second scrap knife is greater than the length of the cutting edge.

8. The molding die for the front roof outer panel as claimed in claim 1, characterized in that: The waste cutting components are provided in a plurality of groups and are arranged at intervals between the upper template and the lower template. Waste guide rods are provided between adjacent waste cutting components to guide the waste segments to be discharged.

9. The molding die for the front roof outer panel as claimed in claim 1, characterized in that: The upper template is provided with a pin ejector device for ejecting the material.

10. A method for forming a front roof outer panel, characterized in that: The molding method is performed using a molding die as described in any one of claims 1 to 9, and the molding method comprises: The punch is placed between a punch and a die in a blanking assembly; The upper mold plate and the lower mold plate are driven by a driving mechanism to perform a first-stage pressing against each other, and the blanking assembly separates waste material from the punching material; The upper template and the lower template are continuously driven by the driving mechanism to perform a second-stage pressing against each other, and the first waste knife and the second waste knife in the waste cutting assembly shear the waste to form a waste segment, and the waste segment is separated from the waste cutting assembly and discharged; The driving mechanism drives the upper mold plate and the lower mold plate to separate from each other, thereby completing the stamping operation of the front top cover outer panel.

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