Blanking die

Abstract

The utility model relates to the field of automobile part machining, and discloses a blanking die which comprises an upper die unit, a cutting unit and a lower die unit, the lower die unit comprises a lower die plate, the upper die unit comprises an upper die plate capable of longitudinally sliding relative to the lower die plate, and the cutting unit comprises a fixed group and a movable group. The fixed set comprises an upper cutting part fixed to the upper die plate and a lower cutting part fixed to the lower die plate, and the movable set comprises an upper separation cut-off tool detachably installed on the upper die plate and a lower separation cut-off tool detachably installed on the lower die plate. The upper die plate and the lower die plate are provided with a plurality of installation positions used for installing the upper separation cut-off tools and the lower separation cut-off tools respectively, and the upper separation cut-off tools and the lower separation cut-off tools are matched to be used for cutting the connecting positions of the adjacent side surrounding plates. The blanking die provided by the utility model can be used for processing side body outer plates with different specifications.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing, specifically to a blanking die. Background Technology

[0002] Light truck-type commercial vehicles have side panels with different specifications, such as single-row and double-row panels. However, the front door opening area of ​​different specifications has certain similarities. Traditional side panel blanking mold development involves developing multiple sets of blanking molds for different specifications of commercial vehicle side panels. However, this approach occupies limited processing space in the factory and requires production line configuration based on multiple sets of molds, resulting in significantly higher capital consumption. Given that different specifications of side panel outer panels have similarities in multiple areas, it is necessary to provide a blanking mold that can process side panel outer panels of different specifications. Utility Model Content

[0003] The present invention aims to provide a blanking die, which can be used to process side panels of different specifications.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a blanking die, comprising an upper die unit, a cutting unit, and a lower die unit. The lower die unit includes a lower template, and the upper die unit includes an upper template that can slide longitudinally relative to the lower template. The cutting unit includes a fixed group and a movable group. The fixed group includes an upper cutting part fixed on the upper template and a lower cutting part fixed on the lower template. The movable group includes an upper separating cutter detachably mounted on the upper template and a lower separating cutter detachably mounted on the lower template. The upper template and the lower template are respectively provided with multiple mounting positions for mounting the upper separating cutter and the lower separating cutter. The upper separating cutter and the lower separating cutter cooperate to cut the connection of adjacent side panels.

[0005] The beneficial effects of this plan are:

[0006] In current vehicle side panel processing, for the commonly used types of side panels, such as double-row side panels and single-row side panels, the biggest difference between double-row and single-row side panels is that double-row side panels have a rear door opening, while single-row side panels only have a front door opening. The difference in the front door openings between single-row and double-row side panels is not significant. The major difference lies in the length of the rear of the side panel. If different specifications of commercial vehicle side panels are required, multiple sets of blanking molds need to be developed, which takes up limited processing space in the factory and consumes more production costs.

[0007] In this technical solution, the side panel material is conveyed through the blanking mold by a conveyor. The upper mold unit slides down onto the lower mold plate to cut the side panel material. The upper and lower mold plates are equipped with multiple mounting positions for installing the upper and lower separating cutters. The upper and lower separating cutters work together to cut the joints of adjacent side panels. By adjusting the positions of the upper and lower separating cutters, different side panel lengths can be cut, enabling customized cutting of side panels of different specifications (such as single-row and double-row). This allows one blanking mold to adapt to the processing needs of side panel outer panels of various specifications. The above settings significantly improve production flexibility and efficiency, and reduce the configuration cost of the production line and the capital investment in mold development.

[0008] As an improvement, it also includes a floating pressure plate and a floating mounting part. The floating mounting part includes a limiting rod and a spring. The spring is sleeved on the limiting rod and its two ends abut against the floating pressure plate and the upper template, respectively. The bottom of the limiting rod is fixedly connected to the floating mounting plate. The upper template has multiple limiting cavities, and the upper end of the limiting rod can slide back and forth in the limiting cavities.

[0009] The beneficial effects are as follows: during the downward sliding of the upper template, the floating pressure plate applies downward pre-pressure to the plate through the action of the spring. The pre-pressure can keep the plate tightly attached to the lower template, effectively preventing the plate from vibrating or shifting during cutting and reducing the generation of burrs on the cutting edge.

[0010] Preferably, as an improvement, the upper cutting part includes an upper window cutting knife, an upper arc cutting knife, and an upper hole cutting knife, and the lower cutting part includes a lower window cutting knife, a lower arc cutting knife, and a lower hole cutting knife. The upper and lower cutting parts work together to cut out the shape of the side panel.

[0011] The beneficial effects are: the upper and lower arc cutting blades work together to cut the arc edges of the side panel, ensuring a smooth outline of the side panel; the upper and lower hole cutting blades can cut various installation holes in the side panel, realizing the side panel forming.

[0012] Preferably, as an improvement, the floating pressure plate has multiple weight-reduction holes.

[0013] The beneficial effects are as follows: the opening of the weight-reducing holes reduces the weight of the pressure plate, thereby reducing the overall weight of the upper mold unit and thus reducing the load on the equipment drive system; at the same time, it facilitates the spring to exert its elastic force, thereby achieving uniform pressing of the side panel material and extending the service life of the spring.

[0014] Preferably, as an improvement, a support part is also installed on the lower template. The support part includes a slide table and a support bar fixedly connected to the slide table. The support bar has an L-shaped cross-section, and the slide table can drive the support bar to slide up and down on the horizontal surface of the lower template.

[0015] The beneficial effects are as follows: the side panel material passes through the blanking mold in sequence through the conveyor machine. In this technical solution, the support bar is used to lift the side panel material, ensuring that the side panel material can be lifted away from the surface of the lower template during the material conveying process, avoiding contact with multiple cutters on the lower template, and avoiding scratching and damage to the surface of the material by the cutters. At the same time, the support bar can reduce the sliding friction during the transportation process, further ensuring its surface quality. The cross-section of the support bar is L-shaped, which can limit the material.

[0016] Preferably, as an improvement, the support bar is provided with a buffer bar, and the surface friction coefficient of the buffer bar is small.

[0017] The beneficial effects are: the buffer strip can effectively reduce the resistance of sliding friction between the side panel material and the support strip, while avoiding direct metal contact that could cause scratches or indentations, thus further protecting the surface quality of the sheet material. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the limiting cavity in an embodiment of the present invention;

[0020] Figure 3 for Figure 1 Enlarged view of point A in the middle. Detailed Implementation

[0021] The following detailed description illustrates the specific implementation method:

[0022] The reference numerals in the accompanying drawings include: upper template 1, upper separating cutter 2, lower separating cutter 3, limit rod 4, spring 5, floating pressure plate 6, lower template 7, limit cavity 8, upper window cutter 9, upper arc cutter 10, upper hole cutter 11, lower window cutter 12, lower arc cutter 13, lower hole cutter 14, weight reduction hole 15, support bar 16, buffer bar 17, slide table 18.

[0023] Example

[0024] The implementation examples are basically as follows Figures 1-3 As shown, Figure 1The blanking die shown includes an upper die unit, a cutting unit, and a lower die unit. The lower die unit includes a lower template 7. The upper die unit includes an upper template 1 that can slide longitudinally relative to the lower template 7. The cutting unit includes a fixed group and a movable group. The fixed group includes an upper cutting part fixed to the upper template 1 and a lower cutting part fixed to the lower template 7. The movable group includes an upper separating cutter 2 detachably mounted on the upper template 1 and a lower separating cutter 3 detachably mounted on the lower template 7. The upper template 1 and the lower template 7 are respectively provided with multiple mounting positions for mounting the upper separating cutter 2 and the lower separating cutter 3. The upper separating cutter 2 and the lower separating cutter 3 cooperate to cut the connection of adjacent side panels. The side panel material is conveyed through the blanking mold in sequence. The upper mold unit slides down and covers the lower mold plate 7 to cut the side panel material. The upper mold plate 1 and the lower mold plate 7 are provided with multiple mounting positions for installing the upper separating cutter 2 and the lower separating cutter 3. In this embodiment, the number of mounting positions on the upper mold plate 1 and the lower mold plate 7 are 3 each. The upper separating cutter 2 and the lower separating cutter 3 are detachably connected to the upper mold plate 1 or the lower mold plate 7 by bolts. The upper separating cutter 2 and the lower separating cutter 3 are used to cut the joint of adjacent side panels. Different side panel lengths can be cut by adjusting the position of the upper separating cutter and the lower separating cutter.

[0025] The upper cutting section includes an upper window cutting knife 9, an upper arc cutting knife 10, and an upper hole cutting knife 11. The lower cutting section includes a lower window cutting knife 12, a lower arc cutting knife 13, and a lower hole cutting knife 14. The upper and lower cutting sections work together to cut out the shape of the side panel. The upper and lower arc cutting knives 13 work together to cut the arc edges of the side panel, ensuring a smooth outline of the side panel. The upper and lower hole cutting knives 14 can cut various mounting holes in the side panel to achieve side panel forming. In this embodiment, the floating pressure plate 6 is also arrayed with multiple weight-reducing holes 15. The opening of the weight-reducing holes 15 reduces the weight of the pressure plate, making the overall weight of the upper mold unit lighter, thereby reducing the load on the equipment drive system. At the same time, it facilitates the application of elastic force by the spring 5 to achieve uniform pressing of the side panel material and extend the service life of the spring 5.

[0026] like Figure 1 and Figure 2 As shown, this embodiment also includes a floating pressure plate 6 and a floating mounting part. The floating mounting part includes a limiting rod 4 and a spring 5. The spring 5 is sleeved on the limiting rod 4 and its two ends abut against the floating pressure plate 6 and the upper template 1, respectively. The bottom of the limiting rod 4 is fixedly connected to the floating mounting plate. The upper template 1 has multiple limiting cavities 8. The upper end of the limiting rod 4 can slide back and forth in the limiting cavity 8. During the downward sliding of the upper template 1, the floating pressure plate 6 applies downward pressure to the plate through the action of the spring 5. The pressure can keep the plate tightly attached to the lower template 7, effectively preventing the plate from vibrating or shifting during cutting and reducing the generation of burrs on the cutting edge.

[0027] The lower template 7 is also equipped with a support, such as Figure 3 As shown, the support includes a slide table 18 and a support bar 16 fixed on the slide table 18. The support bar 16 has an L-shaped cross-section. The slide table 18 can drive the support bar 16 to slide up and down on the horizontal surface of the lower template 7. The support bar 16 is provided with a buffer bar 17. The buffer bar 17 has a low surface friction coefficient. The side panel material passes through the blanking die sequentially by the conveyor. In this technical solution, the support bar 16 is used to lift the side panel material to ensure that the side panel material can be lifted away from the surface of the lower template 7 during the material conveying process, avoiding contact with the multiple cutting tools on the lower template 7. To prevent the blade from scratching the surface of the cutting tool and causing scratches and damage to the sheet metal surface, the support strip 16 is used to support the side panel sheet metal, which can reduce the sliding friction during transportation and further ensure its surface quality. The support strip 16 has an L-shaped cross section, and the sheet metal is placed on the horizontal part of the support strip 16. During the sliding process of the sheet metal, it can guide and limit the sheet metal. The buffer strip 17 can effectively reduce the resistance of sliding friction between the side panel material and the support strip 16, while avoiding direct metal contact that may cause scratches or indentations, further protecting the surface quality of the sheet metal.

[0028] The specific implementation process is as follows:

[0029] In current vehicle side panel processing, for the commonly used types of side panels, such as double-row side panels and single-row side panels, the biggest difference between double-row and single-row side panels is that double-row side panels have a rear door opening, while single-row side panels only have a front door opening. The difference in the front door openings between single-row and double-row side panels is not significant. The major difference lies in the length of the rear of the side panel. If different specifications of commercial vehicle side panels are required, multiple sets of blanking molds need to be developed, which takes up limited processing space in the factory and consumes more production costs.

[0030] In this technical solution, the side panel material is conveyed through the blanking mold in sequence. The upper mold unit slides down onto the lower template 7 to cut the side panel material. The upper template 1 and the lower template 7 are respectively provided with multiple mounting positions for installing the upper separating cutter 2 and the lower separating cutter 3. The upper separating cutter 2 and the lower separating cutter 3 are used to cut the connection between adjacent side panels. By adjusting the position of the upper separating cutter and the lower separating cutter, different side panel lengths can be cut, realizing customized cutting of side panels of different specifications (such as single row and double row). This allows a set of blanking molds to adapt to the processing needs of side panel outer panels of various specifications. The above settings significantly improve production flexibility and efficiency, and reduce the configuration cost of the production line and the capital investment in mold development.

[0031] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A blanking die, characterized in that: The system includes an upper mold unit, a cutting unit, and a lower mold unit. The lower mold unit includes a lower template, and the upper mold unit includes an upper template that can slide longitudinally relative to the lower template. The cutting unit includes a fixed group and a movable group. The fixed group includes an upper cutting part fixed to the upper template and a lower cutting part fixed to the lower template. The movable group includes an upper separating cutter that can be detachably mounted on the upper template and a lower separating cutter that can be detachably mounted on the lower template. The upper and lower templates are provided with multiple mounting positions for mounting the upper and lower separating cutters, respectively. The upper and lower separating cutters are used to cut the connection between adjacent side panels. The system also includes a floating pressure plate and a floating mounting part. The floating mounting part includes a limiting rod and a spring. The spring is sleeved on the limiting rod, and both ends of the spring abut against the floating pressure plate and the upper template, respectively. The bottom of the limiting rod is fixedly connected to the floating mounting plate. The upper template has multiple limiting cavities, and the upper end of the limiting rod can slide back and forth within the limiting cavities.

2. The blanking die according to claim 1, characterized in that: The upper cutting section includes an upper window cutting blade, an upper arc cutting blade, and an upper hole cutting blade; the lower cutting section includes a lower window cutting blade, a lower arc cutting blade, and a lower hole cutting blade. The upper and lower cutting sections work together to cut out the shape of the side panel.

3. A blanking die according to claim 2, characterized in that: The floating pressure plate has multiple weight reduction holes.

4. A blanking die according to claim 3, characterized in that: The lower template is also equipped with a support unit, which includes a slide table and a support bar fixedly connected to the slide table. The support bar has an L-shaped cross section, and the slide table can drive the support bar to slide up and down on the horizontal surface of the lower template.

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