Longitudinal progressive fine blanking die structure with additional force
Through the longitudinal stage precision punching structure with additional force, the cutting, punching shape and punching center hole processing of parts is achieved at the same station, which solves the problem of the mold structure in the prior art that the mold structure is not compact and the processing accuracy is low, and the manufacturing and maintenance costs are reduced, and the machine tool energy consumption is reduced.
Patent Information
- Application Number
- CN202422353881.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-26
AI Technical Summary
In the prior art, when parts need to be cut, punched out and punched in sequence, they need to be carried out separately at different workstations, resulting in large mold accumulation, high manufacturing and maintenance costs, wasted machine tool energy consumption and low processing accuracy.
The vertical step-up fine punching die structure is adopted with additional force. Through the reasonable arrangement of the upper and lower dies, the floating blanking convex die is cooperated with the die, ring plate, main top device, cut punch and central hole punch to realize the cutting, punching shape and punching of parts in sequence at the same station.
The machine tool power transmission area is reduced, the machine tool energy consumption is avoided, the processing accuracy is improved, and the mold manufacturing and maintenance costs are reduced.
Smart Images
Figure CN223145767U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of stamping dies, and particularly relates to a longitudinal progressive fine blanking die structure with additional force. Background Art
[0002] A stamping die is a device used for pressure processing of materials. Its working principle generally involves driving the opening and closing surfaces of the upper die and the lower die under the action of punching force to cut, punch holes, extrude, bend and other forming operations on the raw materials between them to form stamped parts.
[0003] A fine blanking die is a new type of die in the current field of existing product manufacturing. It is usually composed of a combination of a punch and a die that cooperate with each other. The punch is fixed by an upper backing plate and guided by a tooth ring plate. The upper backing plate is fixed to the upper template, the tooth ring plate is fixed to the middle support plate, and the die is connected to the lower template. During operation, the lower die moves upward to complete the stamping production. A compound fine blanking die refers to a cold stamping die that completes multiple stamping processes such as punching, blanking, and forming at the same station on a set of dies during one stamping stroke of a fine blanking press; a continuous fine blanking die refers to a cold stamping die that completes multiple stamping processes at several different stations on a set of dies during one stamping stroke of a fine blanking press. Each time the die completes a stamping, the strip is moved a fixed distance until the product is completed. A fine blanking press is a professional equipment for realizing fine blanking process technology, which can provide multiple-directional acting forces, including: blanking force, blank holding force, reverse punching force, and other additional forces, and each acting force is independently adjustable.
[0004] In the prior art, when a part needs to be processed by notching, punching the outer shape, and punching the center hole in sequence, a continuous fine blanking die needs to be used, and each processing process is carried out at different stations respectively. The required die volume is large, and the manufacturing and maintenance costs are high. Moreover, since the punching area of the part is large, a machine tool with a larger force transmission area needs to be used, resulting in waste of machine tool energy consumption. At the same time, due to the change of stations, the overall processing accuracy is low, making it difficult to ensure the contour accuracy of the part. Summary of the Utility Model
[0005] The technical problem to be solved by the utility model is to provide a longitudinal progressive fine blanking die structure with additional force, which has a compact structure and is convenient to use, and can perform the processing of notching, punching the outer shape, and punching the center hole of a part in sequence through longitudinal progression at the same station, and ensure the processing accuracy of the part.
[0006] The technical solution adopted by the utility model to solve the above technical problem is as follows:
[0007] A longitudinal progressive fine blanking die structure with additional force mainly includes an upper die and a lower die. The upper die includes: an upper template 1, a upper backing plate 2 is fixedly connected below the upper template 1, a center hole ejector 12 is arranged in the middle below the upper backing plate 2, a floating blanking punch and die 5 is arranged circumferentially along the outer circle of the center hole ejector 12, a notching punch 4 is sleeved outside the floating blanking punch and die 5, and a tooth ring plate 3 is sleeved outside the notching punch 4;
[0008] The lower die includes: a lower template 11, a center hole punch 10 corresponding to the center hole ejector 12 is arranged in the middle above the lower template 11, a main ejector 8 corresponding to the floating blanking punch and die 5 is arranged circumferentially along the outer circle of the center hole punch 10, a notching ejector 7 corresponding to the notching punch 4 is sleeved outside the main ejector 8, a lower backing plate 9 is sleeved outside the notching ejector 7, a concave template 6 corresponding to the tooth ring plate 3 is arranged above the lower backing plate 9, and the tooth ring plate 3 and the concave template 6 are cooperated to clamp the material to be processed.
[0009] Further, the sizes of the center hole punch 10 and the center hole ejector 12 are adapted to the size of the product center hole 16.
[0010] Further, the shapes of the floating blanking punch and die 5 and the main ejector 8 are adapted to the outer contour 17 of the product.
[0011] Further, the sizes of the notching punch 4 and the notching ejector 7 are adapted to the outer diameter size of the product.
[0012] Further, multiple blank holding force transmission rods 13 are respectively connected to the tops of the center hole ejector 12, the floating blanking punch and die 5 and the tooth ring plate 3. The multiple blank holding force transmission rods 13 pass through the upper backing plate 2 and the upper template 1 and are respectively connected to the corresponding blank holding force providing mechanisms of the fine blanking machine tool.
[0013] Further, the bottom of the main ejector 8 is connected to the anti-ejecting force providing mechanism of the fine blanking machine tool through multiple anti-ejecting force transmission rods 14 arranged circumferentially and passing through the lower template 11.
[0014] Further, the bottom of the notching ejector 7 is connected to the additional force providing mechanism of the fine blanking machine tool through multiple additional force transmission rods 15 arranged circumferentially and passing through the lower template 11.
[0015] Further, the size of the area where the multiple blank holding force transmission rods 13 are located is smaller than the size of the force transmission area of the fine blanking machine tool.
[0016] The specific processing process is as follows:
[0017] 1) The first stage of the die stroke: The female die 6, the main ejector 8, the ring gear plate 3, and the floating blanking punch and die 5 move upward together without participating in punching. The material is cut by the notch punch 4. At this time, the main ejector 8 acts as the notch female die;
[0018] 2) The second stage of the die stroke: The female die 6 continues to move upward, and the floating blanking punch and die 5 and the center hole punch 10 punch the entire outer shape and the center hole; thus realizing longitudinal progressive stamping at one station to complete the processing of notching, punching the outer shape, and punching the center hole in sequence.
[0019] The present utility model has the following main advantages compared with the prior art:
[0020] 1. Through the reasonable arrangement of the upper die and the lower die, the overall structure of the present utility model is compact and convenient to use. Moreover, through the cooperation of the floating blanking punch and die with the female die, the ring gear plate, the main ejector, the notch punch, and the center hole punch, it is possible to perform the processing of notching, punching the outer shape, and punching the center hole of the part in sequence through longitudinal progression at the same station, which can effectively reduce the required machine tool force transmission area and avoid waste of machine tool energy consumption;
[0021] 2. The present utility model performs punching at the same station without changing the processing station, which can greatly improve the overall processing accuracy and ensure the requirements for the outer contour of the part;
[0022] 3. Compared with the traditional fine blanking die structure, the fine blanking die structure of the present utility model changes from horizontal progression to longitudinal progression, which can reduce the die volume and lower the manufacturing and maintenance costs. Description of the Drawings
[0023] Figure 1 It is the overall schematic diagram of the fine blanking die structure in the embodiment of the present utility model;
[0024] Figure 2 It is the schematic diagram of the stamping processed product in the embodiment of the present utility model;
[0025] Figure 3 It is the schematic diagram of the first stage of the die stroke in the embodiment of the present utility model;
[0026] Figure 4 It is the schematic diagram of the second stage of the die stroke in the embodiment of the present utility model.
[0027] In the figure: 1 - upper template; 2 - upper backing plate; 3 - ring gear plate; 4 - notch punch; 5 - floating blanking punch and die; 6 - female die plate; 7 - notch ejector; 8 - main ejector; 9 - lower backing plate; 10 - center hole punch; 11 - lower template; 12 - center hole ejector; 13 - blank holding force transmission rod; 14 - reverse ejecting force transmission rod; 15 - additional force transmission rod; 16 - product center hole; 17 - product outer contour. Detailed Embodiments
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of them. Components of the embodiments of this application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application claimed, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts belong to the scope of protection of this application.
[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0031] In the description of this application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the products of this application are habitually placed during use. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of this application.
[0032] The following further details the features and performance of this application in conjunction with embodiments.
[0033] Embodiment 1 provides a longitudinal progressive fine blanking die structure with additional force, as Figure 1 shown, mainly including an upper die and a lower die;
[0034] The upper die includes: an upper template 1, a top pad 2 is fixedly connected below the upper template 1, a center hole ejector 12 is provided in the middle below the top pad 2, a floating blanking punch and die 5 is arranged circumferentially outside the center hole ejector 12, a notching punch 4 is sleeved outside the floating blanking punch and die 5, and a tooth ring plate 3 is sleeved outside the notching punch 4;
[0035] The lower die includes: a lower template 11, a center hole punch 10 corresponding to the center hole ejector 12 is provided in the middle above the lower template 11, a main ejector 8 corresponding to the floating blanking punch and die 5 is circumferentially arranged along the outer circle of the center hole punch 10, a notch ejector 7 corresponding to the notch punch 4 is sleeved outside the main ejector 8, a lower backing plate 9 is sleeved outside the notch ejector 7, a concave template 6 corresponding to the tooth ring plate 3 is arranged above the lower backing plate 9, and the tooth ring plate 3 and the concave template 6 are cooperated to clamp the material to be processed.
[0036] Further, the sizes of the center hole punch 10 and the center hole ejector 12 are adapted to the size of the product center hole 16.
[0037] Further, the shapes of the floating blanking punch and die 5 and the main ejector 8 are adapted to the outer contour 17 of the product.
[0038] Further, the sizes of the notch punch 4 and the notch ejector 7 are adapted to the outer diameter size of the product.
[0039] Further, a plurality of blank holding force transmission rods 13 are respectively connected to the tops of the center hole ejector 12, the floating blanking punch and die 5 and the tooth ring plate 3, and the plurality of blank holding force transmission rods 13 pass through the upper backing plate 2 and the upper template 1 and are respectively connected to the corresponding blank holding force providing mechanisms of the fine blanking machine tool.
[0040] Further, the bottom of the main ejector 8 is connected to the reverse ejecting force providing mechanism of the fine blanking machine tool through a plurality of circumferentially arranged reverse ejecting force transmission rods 14 passing through the lower template 11.
[0041] Further, the bottom of the notch ejector 7 is connected to the additional force providing mechanism of the fine blanking machine tool through a plurality of circumferentially arranged additional force transmission rods 15 passing through the lower template 11.
[0042] Further, the size of the area where the transmission rods are located is smaller than the size of the force transmission area of the fine blanking machine tool.
[0043] Embodiment 2, as Figure 2 shown, the thickness of the stamping product in this embodiment is 5 mm, the material is 16MnCr5, the outer diameter of the part is 192 mm, the profile error of the outer contour 17 of the product relative to the center hole 16 of the product is 0.05 ABC, and the machining requirement is that there shall be no rounding at the sharp corners on the outer contour.
[0044] Using the additional force longitudinal progressive fine blanking die of the present application, the notch cutting, outer shape cutting and center hole cutting are sequentially carried out at the same station, and the main ejector of the fine blanking die is supported by the reverse ejecting force, and the notch ejector is supported by the additional force.
[0045] The specific processing procedure is as follows:
[0046] 1) The first stage of the die stroke: As Figure 3 shown, the female die 6, the main ejector 8, the ring plate 3, and the floating blanking punch and die 5 move upward together without participating in punching. The material is cut by the notch punch 4. At this time, the main ejector 8 serves as the notch female die;
[0047] 2) The second stage of the die stroke: As Figure 4 shown, the female die 6 continues to move upward, and the floating blanking punch and die 5 and the center hole punch 10 punch the entire outer shape and the center hole; thus realizing longitudinal progressive punching at one station to complete the processing of notching, punching the outer shape, and punching the center hole in sequence. The diameter of the punched area of the part is 202 mm within the force transmission area of the 700T fine blanking press, and the punched notches, outer shapes, and center holes at the same station can all ensure that the outer contour accuracy is within 0.05.
[0048] The ring plate 3 bears the blank holding force, the main ejector 8 is supported by the reverse ejecting force, and the notch ejector 7 is supported by the additional force, and the reverse ejecting force > the blank holding force > the additional force.
[0049] Furthermore, the parts not described in detail in this application are the same as or implemented by the prior art.
[0050] In summary:
[0051] 1. By the reasonable arrangement of the upper die and the lower die, the overall structure of the present utility model is compact and convenient to use. And through the cooperation of the floating blanking punch and die with the female die, the ring plate, the main ejector, the notch punch, and the center hole punch, it can longitudinally progress at the same station to process the notch, punch the outer shape, and punch the center hole of the part in sequence, which can effectively reduce the required force transmission area of the machine tool and avoid waste of machine tool energy consumption;
[0052] 2. The present utility model performs punching at the same station without changing the processing station, which can greatly improve the overall processing accuracy and ensure the requirements of the outer contour accuracy of the part;
[0053] 3. Compared with the traditional fine blanking die structure, the fine blanking die structure of the present utility model changes from horizontal progression to vertical progression, which can reduce the die volume and lower the manufacturing and maintenance costs.
[0054] The above embodiments are only used to illustrate the design concept and features of the present utility model, and their purpose is to enable those skilled in the art to understand the content of the present utility model and implement it accordingly. The protection scope of the present utility model is not limited to the above embodiments. Therefore, all equivalent changes or modifications made according to the principles and design ideas disclosed by the present utility model are within the protection scope of the present utility model.
Claims
1. A longitudinal progressive fine blanking die structure with additional force, characterized in that: It includes an upper die and a lower die. The upper die includes an upper template (1). A upper backing plate (2) is fixedly connected below the upper template (1). A center hole ejector (12) is provided in the middle below the upper backing plate (2). A floating blanking punch and die (5) is arranged circumferentially along the outer circle of the center hole ejector (12). A notching punch (4) is sleeved outside the floating blanking punch and die (5). A toothed ring plate (3) is sleeved outside the notching punch (4). The lower die includes a lower template (11). A center hole punch (10) corresponding to the center hole ejector (12) is provided in the middle above the lower template (11). A main ejector (8) corresponding to the floating blanking punch and die (5) is arranged circumferentially along the outer circle of the center hole punch (10). A notching ejector (7) corresponding to the notching punch (4) is sleeved outside the main ejector (8). A lower backing plate (9) is sleeved outside the notching ejector (7). A die plate (6) corresponding to the toothed ring plate (3) is arranged above the lower backing plate (9). The toothed ring plate (3) and the die plate (6) cooperate to clamp the material to be processed.
2. The structure of a longitudinal progressive fine blanking die with additional force according to claim 1, characterized in that: The sizes of the center hole punch (10) and the center hole ejector (12) are adapted to the size of the product center hole (16).
3. The structure of a longitudinal progressive fine blanking die with additional force according to claim 1, wherein: The shapes of the floating blanking punch and die (5) and the main ejector (8) are adapted to the outer contour (17) of the product.
4. A longitudinal progressive fine blanking die structure with additional force according to claim 1, characterized in that: The sizes of the notching punch (4) and the notching ejector (7) are adapted to the outer diameter size of the product.
5. The structure of a longitudinal progressive fine blanking die with additional force according to claim 1, characterized in that: Multiple blank holding force transmission rods (13) are respectively connected to the tops of the center hole ejector (12), the floating blanking punch and die (5), and the toothed ring plate (3). After passing through the upper backing plate (2) and the upper template (1), the multiple blank holding force transmission rods (13) are respectively connected to the corresponding blank holding force providing mechanisms of the fine blanking machine tool.
6. The structure of a longitudinal progressive fine blanking die with additional force according to claim 5, characterized in that: The bottom of the main ejector (8) is connected to the reverse ejecting force providing mechanism of the fine blanking machine tool through multiple circumferentially arranged reverse ejecting force transmission rods (14) passing through the lower template (11).
7. A longitudinal progressive fine blanking die structure with additional force according to claim 6, characterized in that: The bottom of the notching ejector (7) is connected to the additional force providing mechanism of the fine blanking machine tool through multiple circumferentially arranged additional force transmission rods (15) passing through the lower template (11).
8. A longitudinal progressive fine blanking die structure with additional force according to claim 7, characterized in that: The size of the area where the multiple blank holding force transmission rods (13) are located is smaller than the size of the force transmission area of the fine blanking machine tool.