Composite die structure for outward flanging
By designing a composite mold structure and combining the flip-flop assembly, the outward flip of automotive parts is achieved, solving the problem that existing molds are difficult to achieve outward flip, and improving production efficiency and automation.
Patent Information
- Application Number
- CN202421677402.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-16
AI Technical Summary
It is difficult for existing automotive stamping molds to flip outward, especially parts that are nearly vertical and horizontal.
A composite mold structure is designed, including an upper mold seat, an upper mold insertion assembly, a lower mold seat, a primary slider assembly and a secondary slide assembly. Combined with the side flip assembly, the process of trimming, punching, engraving and flipping to the outside is realized by driving the cooperation of the first and second slides.
The function of flanking outwards is realized simultaneously in the process of trimming, punching, and printing, which improves the degree of automation and production efficiency of the mold.
Smart Images
Figure CN223129121U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a composite die structure, in particular to a composite die structure for outward flanging, belonging to the technical field of design and manufacture of automobile shell production dies. Background Art
[0002] In automobile stamping dies, we often use standard upward tilting wedges for upward flanging or shaping to bend the local edges of products upward. It is very rare to encounter parts with flanging parts almost turning outward from the vertical direction to the horizontal direction, and at this time, the standard upward tilting wedges are difficult to apply. Summary of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a composite die structure for outward flanging that can simultaneously complete outward flanging during processes such as trimming, punching, and marking.
[0004] The technical solution adopted to solve the above technical problem is: a composite die structure for outward flanging, including an upper die base, an upper die insert component, a lower die base, a first-stage slider component, and a second-stage slider component. The upper die insert component is arranged on the upper die base, and the first-stage slider component and the second-stage slider component are arranged on the lower die base in a mutually adapted position. The composite die structure further includes a side flanging component, and the side flanging component is arranged on the second-stage slider component. During the product stamping and forming process, the upper die insert component running along the stamping direction driven by the upper die base successively drives the first-stage slider component and the second-stage slider component, and with the cooperation of the side flanging component, the stamped material is subjected to trimming and separation, punching, marking, side trimming, side punching, and outward flanging at one time.
[0005] Further, the upper die insert component includes an upper die insert and an upper die insert guide plate. The upper die insert and the upper die insert guide plate are arranged on the upper die base in a mutually adapted position, and the upper die insert component is obliquely connected to the power input end of the first-stage slider component through the upper die insert along the driving angular surface.
[0006] The preferred mode of the above solution is that the second-stage slider component at least includes a second-stage slider and a second-stage guiding and limiting component group. The side flanging component is arranged on the second-stage slider, and the power input end of the second-stage slider whose running direction is limited by the second-stage guiding and limiting component group is obliquely connected to the power output end of the first-stage slider component along the driving angular surface.
[0007] Further, the second-stage slider component further includes a return nitrogen cylinder, and the second-stage slider that completes the flanging work under the cooperation of the driving force input by the first-stage slider component is reset through the return nitrogen cylinder.
[0008] Preferably, the secondary guiding and limiting member group includes a secondary slider bottom guide plate, a secondary slider cover plate, a secondary slider left guide plate, and a secondary slider right guide plate. The running direction of the secondary slider is restricted by the secondary slider bottom guide plate, the secondary slider cover plate, the secondary slider left guide plate, and the secondary slider right guide plate.
[0009] Furthermore, the primary slider assembly includes at least a primary slider and a primary guiding and limiting member group. The power input end of the primary slider is obliquely connected to the upper die insert along the driving angular surface, and the power output end of the primary slider is obliquely connected to the power input end of the secondary slider along the driving angular surface. During operation, the running direction of the primary slider is defined by the primary guiding and limiting member group.
[0010] Preferably, the primary slider assembly further includes a primary slider return spring. The primary slider that completes corresponding work under the cooperation of the driving force input by the upper die insert is reset by the primary slider return spring.
[0011] Furthermore, the primary guiding and limiting member group includes a primary slider bottom guide plate, a primary slider cover plate, a primary slider front guide plate, a primary slider rear guide plate, and a primary slider driving guide plate. The running direction of the primary slider is restricted by the primary slider bottom guide plate, the primary slider cover plate, the primary slider front guide plate, the primary slider rear guide plate, and the primary slider driving guide plate. The power output end of the primary slider is obliquely connected to the secondary slider along the driving angular surface through the primary slider driving guide plate.
[0012] Preferably, the side flanging assembly is composed of a group of side flanging cutter blocks, and the side flanging cutter blocks are arranged on the secondary slider.
[0013] Furthermore, the distance that the upper die insert runs vertically has a 1:1 relationship with the distance that the primary slider runs horizontally, and the transmission ratio of the upper die insert driving the side flanging cutter blocks to perform flanging movement horizontally in the vertical direction is 1:1.
[0014] The beneficial effects of the present utility model are as follows: The technical solution provided in this application is based on an existing mold including an upper die base, an upper die insert assembly, a lower die base, a primary slider assembly, and a secondary slider assembly. Combining the structural features that the upper die insert assembly is arranged on the upper die base, and the primary slider assembly and the secondary slider assembly are arranged on the lower die base in a mutually adapted manner, a compound mold structure of this application is formed by adding a side flanging assembly, and the added side flanging assembly of this application is arranged on the secondary slider assembly. In this way, during the stamping and forming process of the product, the upper die insert assembly that runs along the stamping direction driven by the upper die base drives the primary slider assembly and the secondary slider assembly successively, and cooperates with the side flanging assembly to perform trimming and separation, punching, engraving, side trimming, side punching, and outward flanging on the stamping material at one time, so as to achieve the purpose that this application can simultaneously complete the outward flanging work in processes such as trimming, punching, and engraving. Brief Description of the Drawings
[0015] Figure 1 This is a schematic structural diagram of the composite die structure for outward flanging of the present utility model;
[0016] Figure 2 This is the front view of the upper die insert driving the first-stage slider involved in the composite die structure for outward flanging of the present utility model;
[0017] Figure 3 This is the top view of the first-stage slider driving the second-stage slider involved in the composite die structure for outward flanging of the present utility model.
[0018] In the figure, the markings are: upper die base 1, lower die base 2, side flanging assembly 3, upper die insert 4, upper die insert guide plate 5, second-stage slider 6, return nitrogen cylinder 7, second-stage slider bottom guide plate 8, second-stage slider cover plate 9, second-stage slider left guide plate 10, second-stage slider right guide plate 11, first-stage slider 12, first-stage slider return spring 13, first-stage slider bottom guide plate 14, first-stage slider cover plate 15, first-stage slider front guide plate 16, first-stage slider rear guide plate 17, first-stage slider driving guide plate 18. Detailed Description of the Preferred Embodiment
[0019] As Figure 1 、 Figure 2 and Figure 3Shown is a composite die structure for outward flanging provided by the present utility model, which can simultaneously complete outward flanging during processes such as trimming, punching, and marking. The composite die structure includes an upper die base 1, an upper die inserting tool assembly, a lower die base 2, a first-stage slider assembly, and a second-stage slider assembly. The upper die inserting tool assembly is arranged on the upper die base 1, and the first-stage slider assembly and the second-stage slider assembly are arranged on the lower die base 2 in a position-adapted manner. The composite die structure further includes a side flanging assembly 3, and the side flanging assembly 3 is arranged on the second-stage slider assembly. During the product stamping process, the upper die inserting tool assembly running along the stamping direction driven by the upper die base 1 successively drives the first-stage slider assembly and the second-stage slider assembly, and with the cooperation of the side flanging assembly 3, the stamped material is subjected to trimming and separation, punching, marking, side trimming, side punching, and outward flanging at one time. The technical solution provided in this application is based on the existing die including an upper die base, an upper die inserting tool assembly, a lower die base, a first-stage slider assembly, and a second-stage slider assembly. Combining the structural features that the upper die inserting tool assembly is arranged on the upper die base and the first-stage slider assembly and the second-stage slider assembly are arranged on the lower die base in a position-adapted manner, a side flanging assembly is added to form the composite die structure of this application, and the added side flanging assembly of this application is arranged on the second-stage slider assembly. In this way, during the product stamping process, the upper die inserting tool assembly running along the stamping direction driven by the upper die base successively drives the first-stage slider assembly and the second-stage slider assembly, and with the cooperation of the side flanging assembly 3, the stamped material is subjected to trimming and separation, punching, marking, side trimming, side punching, and outward flanging at one time, so as to achieve the purpose that this application can simultaneously complete the outward flanging work during processes such as trimming, punching, and marking.
[0020] Correspondingly, considering the existing stamping dies for automotive panels, in order to maximize the use of components in the existing dies and minimize the production and manufacturing of newly designed parts, the upper die inserting knife assembly described in this application includes an upper die inserting knife 4 and an upper die inserting knife guide plate 5. The upper die inserting knife 4 and the upper die inserting knife guide plate 5 are arranged on the upper die base 1 in a mutually adapted manner. The power input end of the upper die inserting knife assembly and the first-stage slider assembly are obliquely connected along the driving angle surface through the upper die inserting knife 4. The second-stage slider assembly described in this application includes at least a second-stage slider 6 and a second-stage guiding and limiting member group. The side flanging assembly 3 is arranged on the second-stage slider 6. The power input end of the second-stage slider 6 whose running direction is limited by the second-stage guiding and limiting member group and the power output end of the first-stage slider assembly are obliquely connected along the driving angle surface. The first-stage slider assembly described in this application includes at least a first-stage slider 12 and a first-stage guiding and limiting member group. The power input end of the first-stage slider 12 and the upper die inserting knife 4 are obliquely connected along the driving angle surface, and the power output end of the first-stage slider 12 and the power input end of the second-stage slider 6 are obliquely connected along the driving angle surface. During operation, the running direction of the first-stage slider 12 is limited by the first-stage guiding and limiting member group. At this time, in order to improve the automation function of the die itself, the second-stage slider assembly described in this application further includes a return nitrogen cylinder 7. The second-stage slider 6 that completes the flanging work under the cooperation of the driving force input by the first-stage slider assembly is reset through the return nitrogen cylinder 7. The first-stage slider assembly described in this application further includes a first-stage slider return spring 13. The first-stage slider 12 that completes the corresponding work under the cooperation of the driving force input by the upper die inserting knife 4 is reset through the first-stage slider return spring 13. More specifically, the second-stage guiding and limiting member group described in this application includes a second-stage slider bottom guide plate 8, a second-stage slider cover plate 9, a second-stage slider left guide plate 10, and a second-stage slider right guide plate 11. The running direction of the second-stage slider 6 is limited by the second-stage slider bottom guide plate 8, the second-stage slider cover plate 9, the second-stage slider left guide plate 10, and the second-stage slider right guide plate 11. The first-stage guiding and limiting member group described in this application includes a first-stage slider bottom guide plate 14, a first-stage slider cover plate 15, a first-stage slider front guide plate 16, a first-stage slider rear guide plate 17, and a first-stage slider driving guide plate 18. The running direction of the first-stage slider 12 is limited by the first-stage slider bottom guide plate 14, the first-stage slider cover plate 15, the first-stage slider front guide plate 16, the first-stage slider rear guide plate 17, and the first-stage slider driving guide plate 18. The power output end of the first-stage slider 12 and the second-stage slider 6 are obliquely connected along the driving angle surface through the first-stage slider driving guide plate 18.
[0021] Furthermore, as a key component of the improvement of this application, in order to simplify its structure as much as possible, facilitate manufacturing, and adapt to the existing dies, the side flanging assembly 3 described in this application is composed of a group of side flanging knife blocks, and the side flanging knife blocks are arranged on the second-stage slider 6. Specifically, when arranging, the distance that the upper die inserting knife 4 runs vertically and the distance that the first-stage slider 12 runs horizontally have a 1:1 relationship, and the transmission ratio of the upper die inserting knife 4 driving the side flanging knife blocks to perform flanging movement horizontally in the vertical direction is 1:1.
[0022] In summary, the set of molds provided by this application is composed of two symmetrically arranged reinforcing parts joined together. The process content includes: trimming and separating + punching + marking + side trimming + side punching + outward flanging, a total of 6 types of compound process content, as Figure 1 shown. On the outer sides of the two parts, there is a 90° outward flanging at each location, and the conventional mold structures cannot achieve this process content. Therefore, through the theoretical summary of the conventional double-action inclined wedge, we re-conceived and designed the above mold structure to achieve the function of 90° outward flanging.
[0023] The technical solution of this application will be further described below through specific embodiments:
[0024] The specific layout structure is that the upper die insert and the insert guide plate are installed on the upper die base. As the upper die base reciprocates in the Z direction, it provides the driving force source for the entire inclined wedge. When the mold is working: the upper die insert contacts the guiding surface of the first-stage slider at a 45° angle through the insert guide plate, converting the -Z direction movement of the insert into the horizontal movement of the first-stage slider in the A direction. The first-stage slider contacts the guiding surface of the second-stage slider at a 45° angle through the driving guide plate, converting the horizontal movement of the first-stage slider in the A direction into the linear movement of the second-stage slider along the B direction. In this way, the flanging movement of the side flanging insert along the B direction is achieved. When the mold retracts: the upper die insert and the upper die move together with the upper slider of the press in the Z direction; under the action of the return spring of the first-stage slider, the first-stage slider retracts in the -A direction; the second-stage slider retracts in the -B direction under the action of the return nitrogen cylinder of the second-stage slider. Repeating this process realizes the working cycle of the entire mold.
[0025] Embodiment 1
[0026] 1. The upper die insert drives the first-stage slider to move along the A direction:
[0027] As Figure 2 shown, when the upper die insert moves in the Z direction, it drives the first-stage slider at a 45° angle; and because the first-stage slider is guided by the cover plate and the bottom guide plate, restricting its movement in the Z direction; and is guided by the front side guide plate and the rear side guide plate, restricting its movement in the front and rear side directions; therefore, the entire first-stage slider can only move along the left and right sides, that is, in the A direction. Moreover, the movement distance of the first-stage slider in the A direction and the movement distance of the upper die insert in the -Z direction are in a 1:1 relationship.
[0028] 2. The first-stage slider drives the second-stage slider to move along the B direction:
[0029] As Figure 3As shown in the figure, when the first-stage slider moves along the A direction, it drives the second-stage slider at a 45° angle. Also, because the second-stage slider is guided by the cover plate and the bottom guide plate, its movement in the Z direction is restricted. With the guidance of the left guide plate and the right guide plate, its movement in the left and right directions is restricted. Therefore, the entire second-stage slider can only move in the front and back directions, i.e., the B direction. Moreover, the movement distance of the second-stage slider along the B direction has a 1:1 relationship with the movement distance of the first-stage slider along the A direction. The side-turning edge cutter block is fixed on the second-stage slider, and its movement relationship with the second-stage slider is the same. Therefore, through the transmission of the entire inclined wedge mechanism, the upper die insert knife drives the side-turning edge cutter block to perform a flanging movement along the B direction along the -Z direction, and the transmission ratio is 1:1.
[0030] 3. After the upper die insert knife retracts, the first-stage slider retracts along the A direction:
[0031] When the press is opened, the upper die insert knife retracts in the Z direction. The first-stage slider loses the driving effect of the insert knife and retracts along the A direction under the action of the return spring, as Figure 2 shown in the figure.
[0032] 4. After the first-stage slider retracts, the second-stage slider retracts along the -B direction:
[0033] When the first-stage slider retracts along the A direction, the second-stage slider loses the driving force and retracts along the B direction under the action of the return nitrogen cylinder.
[0034] The above steps 1-4 are a movement cycle of the die structure. This structure can not only be applied to 90° horizontal flanging to the outside, but also, through detailed modifications, achieve non-90° oblique flanging to the outside. When designing this structure, it is necessary to pay attention to the lateral force of the slider and the assembly and machining properties of the structure. This design concept and structure have been successfully applied to the die of the rear longitudinal arm of a certain Fiat model. The die has been produced, debugged, and successfully produced qualified parts, and the die is ready to be delivered abroad.
Claims
1. The composite die structure for outward flanging includes an upper die base (1), an upper die inserting tool assembly, a lower die base (2), a first-stage slider assembly, and a second-stage slider assembly. The upper die inserting tool assembly is arranged on the upper die base (1), and the first-stage slider assembly and the second-stage slider assembly are arranged on the lower die base (2) in a mutually adapted position. It is characterized in that: The described composite die structure further includes a side flanging assembly (3), and the side flanging assembly (3) is arranged on the secondary slider assembly; during the product stamping and forming process, the upper die insert knife assembly that moves along the stamping direction driven by the upper die holder (1) drives the primary slider assembly and the secondary slider assembly successively, and with the cooperation of the side flanging assembly (3), the stamped material is trimmed and separated, punched, engraved, side-trimmed, side-punched, and flanged outwardly in one go.
2. The composite die structure for outward flanging according to claim 1, characterized in that: The upper die insert knife assembly includes an upper die insert knife (4) and an upper die insert knife guide plate (5). The upper die insert knife (4) and the upper die insert knife guide plate (5) are arranged on the upper die holder (1) in a mutually adapted position. The upper die insert knife assembly is obliquely connected to the power input end of the primary slider assembly through the upper die insert knife (4) along the driving angular surface.
3. The composite die structure for outward flanging according to claim 1 or 2, characterized in that: The secondary slider assembly at least includes a secondary slider (6) and a secondary guiding and limiting component group. The side flanging assembly (3) is arranged on the secondary slider (6). The power input end of the secondary slider (6) whose running direction is limited by the secondary guiding and limiting component group is obliquely connected to the power output end of the primary slider assembly along the driving angular surface.
4. The composite die structure for outward flanging according to claim 3, characterized in that: The secondary slider assembly further includes a return nitrogen cylinder (7). The secondary slider (6) that completes the flanging work under the cooperation of the driving force input by the primary slider assembly is reset through the return nitrogen cylinder (7).
5. The composite die structure for outward flanging according to claim 4, characterized in that: The secondary guiding and limiting component group includes a secondary slider bottom guide plate (8), a secondary slider cover plate (9), a secondary slider left guide plate (10), and a secondary slider right guide plate (11). The running direction of the secondary slider (6) is restricted by the secondary slider bottom guide plate (8), the secondary slider cover plate (9), the secondary slider left guide plate (10), and the secondary slider right guide plate (11).
6. The composite die structure for outward flanging according to claim 5, wherein: The primary slider assembly at least includes a primary slider (12) and a primary guiding and limiting component group. The power input end of the primary slider (12) is obliquely connected to the upper die insert knife (4) along the driving angular surface, and the power output end of the primary slider (12) is obliquely connected to the power input end of the secondary slider (6) along the driving angular surface; the running primary slider (12) is restricted in its running direction by the primary guiding and limiting component group.
7. The composite die structure for outward flanging according to claim 6, characterized in that: The primary slider assembly further includes a primary slider return spring (13). The primary slider (12) that completes the corresponding work under the cooperation of the driving force input by the upper die insert knife (4) is reset through the primary slider return spring (13).
8. The composite die structure for outward flanging according to claim 7, characterized in that: The primary guiding and limiting component group includes a primary slider bottom guide plate (14), a primary slider cover plate (15), a primary slider front guide plate (16), a primary slider rear guide plate (17), and a primary slider driving guide plate (18). The running direction of the primary slider (12) is restricted by the primary slider bottom guide plate (14), the primary slider cover plate (15), the primary slider front guide plate (16), the primary slider rear guide plate (17), and the primary slider driving guide plate (18). The primary slider (12) is obliquely connected to the power output end of the secondary slider (6) through the primary slider driving guide plate (18) along the driving angular surface.
9. The composite die structure for outward flanging according to claim 3, characterized in that: The side flanging assembly (3) is composed of a group of side flanging knife blocks, and the side flanging knife blocks are arranged on the secondary slider (6).
10. The composite die structure for outward flanging according to claim 8, characterized in that: The distance that the upper die inserting tool (4) travels vertically has a 1:1 relationship with the distance that the first-stage slider (12) travels horizontally, and the transmission ratio of the upper die inserting tool (4) driving the side-turning edge knife block to turn over horizontally in the vertical direction is 1:1.