Stamping progressive die for combined nesting
The combined die progressive die setup optimizes the layout of product forming zones and gap sections on a strip to address inefficiencies in electric motor component production, enhancing material utilization and reducing costs by ensuring consistent production of a set number of components per cycle.
Patent Information
- Application Number
- CN202421713258.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-07-19
AI Technical Summary
In the production of motor parts, during the production of rotor punching and stator punching, material tape is seriously wasted, resulting in increased costs, and existing step-up molds cannot effectively utilize the material tape space.
A stamping step mold combining sleeves is designed, and by staggering the product forming zone and punching station on the strip, ensuring that each punching produces a fixed number of sleeve products, including the first workpiece, the second workpiece, the first part and the second part, optimizing the tape utilization rate and mold layout.
It improves the utilization rate of material tape, saves material and mold costs, and ensures production quality and efficiency, achieving the combined production of multiple parts.
Smart Images
Figure CN223097795U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of dies, and in particular to a progressive die for combined nesting. Background Art
[0002] With the rapid development of the automotive industry, automobiles are being updated more and more quickly. The addition of new energy vehicles has made the competition in the automotive market increasingly fierce. In order to seize the market, new energy vehicles are being updated at an increasingly fast pace. As important components, motor parts also have a very fast update rate. A progressive die is a die composed of multiple stations, and each station is associated in sequence to complete different processing steps. It has the advantages of continuous production and high production speed and is often used in the production of motor parts.
[0003] Motor parts are as shown in the appendix Figure 6 and may include C-shaped parts, I-shaped parts, rotor punching sheets, and stator punching sheets. When these parts are produced separately, due to the large space inside the rotor punching sheet and the gap between the outer side of the circular stator punching sheet and the rectangular strip, if not utilized, there will be a lot of waste of the strip after production, which increases the cost to a certain extent. Summary of the Invention
[0004] The purpose of the present application is to provide a progressive die for combined nesting.
[0005] To achieve the above purpose, the technical solution adopted in the present application is: a progressive die for combined nesting, including a strip for grading feeding and blanking. The strip includes a plurality of product forming areas. In each product forming area, a first workpiece and a second workpiece are respectively punched and formed from the center to the outside. An interval part is formed between the plurality of product forming areas and the edge of the strip, and a first part punching area is arranged in the interval part; a second part punching area is arranged at the center of the product forming area.
[0006] As a preference, the progressive die for combined nesting further includes a plurality of blanking stations, and the plurality of blanking stations correspond to the product forming areas, the first part punching area, and the second part punching area on the strip.
[0007] As a preference, the product forming areas are staggered to form n + 1 columns on the strip. The diameter of the product forming area is m, the length of the overlapping part between two adjacent product forming areas in two adjacent columns is k times m, and the distance between the product forming area and the edge of the strip is p. The overall width of the corresponding strip is (n + 1)*m - 2n*k*m + 2p, where n is a non-negative integer, m is a positive number, and the value range of k is (0, 1).
[0008] Further preference is that the value range of k is [0.1, 0.5].
[0009] As a preference, there are two columns in the product forming area, and the value of k is one-third; the blanking station is correspondingly and oppositely arranged for the two columns of the product forming area and its staggered configuration.
[0010] As a preference, three kinds of the spacing parts are formed in the two columns of the product forming area, and the first part stamping area is located at the positions of the spacing parts on both sides.
[0011] As a preference, two C-shaped parts are formed in each of the first part stamping areas. The two C-shaped parts are arranged staggeredly, and the projections of the two have an overlapping part. The length of the overlapping part accounts for between one-fourth and three-fourths of the total length of the C-shaped part.
[0012] As a preference, the distance between the two C-shaped parts located in the same first part stamping area is the second spacing, and the distance between the two C-shaped parts and the edge of the strip is the first spacing. The first spacing is greater than 10 mm, and the second spacing is greater than 4 mm.
[0013] As a preference, an operation station is arranged outside the middle part of the strip.
[0014] As a preference, a second part blanking station and a first blanking station are sequentially arranged after the second blanking station. The first blanking station is suitable for blanking the second part after being processed by the second part blanking station; a first part blanking station and a second blanking station are arranged at the position of the strip behind the first blanking station. The second blanking station is suitable for blanking the first part after being processed by the first part blanking station; a first workpiece blanking station is arranged behind the first part blanking station. A third blanking station is arranged at the first workpiece blanking station, and the third blanking station is suitable for blanking the first workpiece processed by the first workpiece blanking station; a second workpiece groove blanking station and a waste removal station are sequentially arranged behind the first workpiece blanking station. A first workpiece blanking station is arranged after the waste removal station. A fourth blanking station is arranged at the first workpiece blanking station, and the fourth blanking station is suitable for blanking the first workpiece processed by the first workpiece blanking station.
[0015] Compared with the prior art, the beneficial effects of the present application are as follows:
[0016] In this embodiment, the product forming area and blanking stations on the strip are reasonably arranged, so as to make full use of the strip. At the same time, it can ensure that a fixed number of sets of nested products are produced in each blanking, guaranteeing the production quality and efficiency. This progressive die for combined nesting can make better use of the waste materials of stamping products, improve the material utilization rate, and save the material cost. At the same time, the dies of several parts can be combined to save the die cost. Brief Description of the Drawings
[0017] Figure 1 is the overall schematic diagram of one embodiment of the present application.
[0018] Figure 2 is Figure 1 the schematic diagram of the blank layout of some blanks in the embodiment.
[0019] Figure 3 is Figure 1 the schematic diagram of three states of the intermediate spacing part.
[0020] Figure 4 is the schematic diagram of the set blank layout set in one of the spacing parts.
[0021] Figure 5 is the schematic diagram of the finished product and the blanking part.
[0022] Figure 6 is Figure 4 and Figure 5 the schematic diagram of the structure when the products are separated in.
[0023] In the figure: 1. Strip; 2. First blanking station; 2a. First blanking slot; 2b. First blanking area; 3. Second blanking station; 3a. Second blanking slot; 3b. Second blanking area; 4. First part blanking area; 5. First blanking station; 6. Second part blanking area; 7. First part blanking station; 8. Second blanking station; 9. Third blanking station; 10. First workpiece blanking station; 11. Operating station; 12. Second workpiece slot blanking station; 12a. Second workpiece blanking slot; 12b. Second workpiece inner slot; 13. Second workpiece blanking station; 14. Spacing part; 141. First spacing; 142. Second spacing; 143. Third spacing; 15. Second workpiece; 16. First pitch; 17. Third blanking station; 17a. Fourth blanking slot; 17b. First workpiece blanking area; 18. Second pitch. Detailed Embodiment
[0024] Next, in combination with the specific embodiments, the present application will be further described. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be arbitrarily combined with each other to form new embodiments.
[0025] In the description of the present application, it should be noted that for orientation terms, such as the terms "center", "horizontal", "vertical", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present 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 should not be construed as limiting the specific protection scope of the present application.
[0026] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence.
[0027] The terms "comprising" and "having" in the description and claims of the present application, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.
[0028] Embodiment:
[0029] Referring to Figures 1 to 5 , this embodiment provides a progressive die for combined nesting, including a strip 1 for stepped feeding and blanking. The strip 1 includes multiple product forming areas. In each product forming area, a first workpiece and a second workpiece 15 are respectively stamped and formed from the center to the outside. An interval part 14 is formed between the multiple product forming areas and the edge of the strip 1, and a first part stamping area is provided in the interval part 14; a second part stamping area is provided at the center of the product forming area. As Figure 1 , Figure 5 shown, the first workpiece and the second workpiece 15 are preferably annular or circular workpieces in this embodiment. The product forming area is the circumferential range formed by the outermost side of the second workpiece 15. By setting blanking devices on the upper and lower sides of the strip 1, the corresponding blanking processing can be completed. Among them, the first workpiece is the second one from right to left in Figure 6 , and the second workpiece 15 is the rightmost one. Obviously, the first workpiece is formed inside the second workpiece 15, and the second part is the part in the lower left of Figure 6 , which is formed at the center of the first workpiece. The first part is Figure 6The part in the upper left of the middle is formed at the interval part 14. When corresponding to the production of each first workpiece and the second workpiece 15, the first part and the second part are both produced in a set quantity. For example, there are two first parts and one second part. When continuously producing in this way, it can ensure that a set of nested materials can be produced each time. In this embodiment, the strip 1 is fully utilized, and it can ensure that a fixed quantity of a set of nested material products is produced for each blanking. The nested material products include, for example, one first workpiece, one second workpiece 15, two first parts and one second part.
[0030] Of course, in some embodiments, the first workpiece can also be other shapes such as square, triangle, etc.
[0031] As Figure 1 shown, the progressive die for stamping combined nested materials further includes a plurality of blanking stations, and the plurality of blanking stations correspond to the product forming area, the first part stamping area and the second part stamping area on the strip 1. Blanking equipment can be set corresponding to the blanking stations to complete the corresponding blanking process. For the convenience of accurate processing, common structures in this field such as a guiding structure and a positioning structure can also be set simultaneously to ensure that each processing can be carried out at the set position.
[0032] As Figure 1 shown, in this embodiment, specifically, the first workpiece is a rotor punching sheet, the second workpiece 15 is a stator punching sheet, the first part is a C-shaped part, and the second part is an I-shaped part as an example for illustration. The rotor punching sheet, the stator punching sheet, the C-shaped part and the I-shaped part are common motor parts and are often used in the automotive processing field. In this embodiment, in order to increase the utilization rate of the strip 1 and the production efficiency, the product forming area is staggered to form n + 1 columns on the strip 1, the diameter of the product forming area is m, the length of the overlapping part between two adjacent product forming areas in two adjacent columns is k times m, the distance between the product forming area and the edge of the strip 1 is p, and the overall width of the corresponding strip 1 is (n + 1)*m - 2n*k*m + 2p, where n is a non-negative integer, m is a positive number, and the value range of k is (0, 1). The value of n is 0, 1, 2, 3.......; m is the diameter of the product forming area. When n is 0, the width of the corresponding strip 1 is the outer diameter of the second workpiece 15 plus twice the distance p between the product forming area and the edge of the strip 1. Obviously, for the sake of efficiency, generally n can be taken as 1. At this time, there will be two columns of product forming areas on the corresponding strip 1, and each product forming area of the two columns of product forming areas is as Figure 1As shown in (b), it is a left - right alternating or staggered design. However, any two product forming areas are not connected and need to be spaced apart by a certain distance to ensure that each product forming area will not affect each other during blanking. And the spacer part 14 of the strip 1 between multiple product forming areas maintains a certain strength. With such a design, the spacer part 14 in the middle of the two columns of product forming areas will be relatively small, so the utilization rate of the strip 1 is relatively high. Of course, when n = 1, the width of the strip 1 can also be directly taken as 2 times the diameter of the product forming area plus 2 times the distance p between the product forming area and the edge of the strip 1. But in this case, the spacing between multiple product forming areas becomes larger, so the utilization rate of the strip 1 will decrease. In this embodiment, the value of k affects the size of the spacing between the two columns of product forming areas. Generally speaking, the larger the value of k, the smaller the spacing; the smaller the value of k, the larger the spacing. However, the value of k has an upper limit. When the value of k is too large, the two columns of product forming areas are too close. At this time, the distance between the product forming areas in the same column needs to be increased, which will instead reduce the utilization rate of the strip 1. According to the specific diameter of the product forming area, the value of k has a preferred range and an optimal value. The preferred value range of k is 0.1 - 0.5 (including the boundary values).
[0033] The preferred value of k is one - third; the blanking station is correspondingly set opposite to the two columns of product forming areas and their staggered configuration respectively.
[0034] When n = 1, there are three spacer parts 14 formed by the two columns of product forming areas. The first part stamping area is located at the positions of the spacer parts 14 on both sides. As Figure 1 and Figure 3 , Figure 3 the first spacer 141, the second spacer 142 and the third spacer 143 are formed. Among them, the first spacer 141 and the third spacer 143 are located at the edge of the strip 1, and the first part can be produced here. Correspondingly, generally no part is produced at the second spacer 142 because the second spacer 142 is the connection part of the product forming areas. In order to ensure that the strip 1 has sufficient strength, generally no part is produced at the second spacer 142.
[0035] As Figure 4 shown, each first part stamping area forms a total of two C - shaped parts. The two C - shaped parts are arranged staggeredly and the projections of the two have an overlapping part. The length of the overlapping part accounts for between one - quarter and three - quarters of the total length of the C - shaped part. This can reduce the area between the forming areas of the two C - shaped parts. To ensure strength, the distance between the two C - shaped parts in the same first part stamping area is the second spacing 18, and the distance between the two C - shaped parts and the edge of the strip 1 is the first spacing 16. The first spacing 16 is greater than 4 mm, and the second spacing 18 is greater than 10 mm.
[0036] To facilitate manual operation, an operation station 11 is provided on the outer side of the middle part of the strip 1.
[0037] As Figure 1 , Figure 5 shown, a second part blanking station and a first blanking station 5 are successively arranged after the second blanking station 3. The first blanking station 5 is adapted to blank the second part after being processed by the second part blanking station; a first part blanking station 7 and a second blanking station 8 are arranged at a position behind the first blanking station 5 of the strip 1. The second blanking station 8 is adapted to blank the first part after being processed by the first part blanking station 7; a first workpiece blanking station 10 is arranged behind the first part blanking station 7. A third blanking station 9 is provided at the first workpiece blanking station 10. The third blanking station 9 is adapted to blank the first workpiece processed by the first workpiece blanking station 10; a second workpiece groove blanking station 12 and a waste removal station are successively arranged behind the first workpiece blanking station 10. A first workpiece blanking station 10 is provided after the waste removal station. A fourth blanking station is provided at the first workpiece blanking station 10. The fourth blanking station is adapted to blank the first workpiece processed by the first workpiece blanking station 10.
[0038] When the strip 1 of this embodiment starts to be loaded and blanked, the groove of the first part is first blanked and formed by the first blanking station 2 and the second blanking station 3; then the strip 1 is blanked and formed by the second part blanking station, and the formed second part is blanked by the first blanking station 5. Then the strip 1 enters the first part blanking station 7. The first part blanking station 7 processes and forms the first part and blanks it through the second station. Then the strip 1 enters the third blanking station 17. The third blanking station 17 removes part of the waste after the second part is formed to form the inner cavity of the first workpiece. Then the strip 1 enters the first workpiece blanking station 10. The first workpiece blanking station 10 blanks and forms the first workpiece and blanks it through the third blanking station 9. Then the strip 1 enters the second workpiece groove blanking station 12. The second workpiece groove blanking station 12 is used to blank and form the second workpiece inner groove 12b. The specific position can refer to Figure 2 the second workpiece blanking area 12a in Figure 1 . Then the strip 1 enters the waste removal station to remove the excess waste. Then the strip 1 enters the second workpiece blanking station 13. The second workpiece blanking station 13 blanks and forms the second workpiece 15 and blanks it through the fourth blanking station (not shown in the figure, refer to
[0039] Refer to Figure 2 , Figure 2It is the nesting layout diagram of the blank. One set of nesting is selected for illustration: the nesting layout of one set of nesting from the inside out is the second part blanking area 17a (for the generation of the second part), the first blanking area 2a (for the generation of the first workpiece groove body), the second blanking area 3a (for the generation of another groove body of the first workpiece), and the first workpiece blanking area 12a (for the generation of the inner groove body 12b of the second workpiece). There is a first part blanking area 4 on the outside of the first workpiece 15 close to the edge of the strip 1. Figure 2 The first part in it has two setting methods. One is staggered distribution, and the other is like Figure 2 the distribution method of the first part at the top. Refer to Figure 5 , Figure 5 which has the second part blanking site 17b, the first blanking site 2b, the second blanking site 3b, and the first workpiece inner groove body blanking site (corresponding to the position of the inner groove body 12b of the second workpiece) from the inside out.
[0040] The above describes the basic principle, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.
Claims
1. A progressive die for combined nesting, including a strip for step feeding and blanking, characterized in that, The strip includes a plurality of product forming areas. In each product forming area, a first workpiece and a second workpiece are respectively stamped and formed from the center to the outside. An interval part is formed between the plurality of product forming areas and the edge of the strip, and a first part stamping area is arranged in the interval part; a second part stamping area is arranged at the center of the product forming area.
2. The progressive die for combined nesting blanking according to claim 1, characterized in that It further includes a plurality of blanking stations, and the plurality of blanking stations correspond to the product forming areas, the first part stamping area and the second part stamping area on the strip.
3. The progressive die for combined nesting as claimed in claim 2, wherein, The product forming areas are staggered to form n + 1 columns on the strip. The diameter of the product forming area is m. The length of the overlapping part between two adjacent product forming areas in two adjacent columns is k times m. The distance between the product forming area and the edge of the strip is p. The overall width of the corresponding strip is (n + 1)*m - 2n*k*m + 2p, where n is a non-negative integer, m is a positive number, and the value range of k is (0, 1).
4. The progressive die for combined nesting as claimed in claim 3, wherein The value range of k is [0.1, 0.5].
5. The progressive die for combined nesting as claimed in claim 3, wherein There are two columns of the product forming areas, and the value of k is one-third; the blanking stations are arranged respectively and oppositely corresponding to the two columns of the product forming areas and their staggered configurations.
6. The progressive die for combined nesting as described in claim 5, characterized in that, The two columns of the product forming areas altogether form three kinds of the interval parts, and the first part stamping area is located at the positions of the interval parts on both sides.
7. The progressive die for combined nesting blanking according to claim 6, characterized in that, Two C-shaped parts are altogether formed in each first part stamping area. The two C-shaped parts are arranged staggeredly and the projections thereof have an overlapping part, and the length of the overlapping part accounts for between one-fourth and three-fourths of the total length of the C-shaped part.
8. The progressive die for combined nesting as claimed in claim 7, wherein, The distance between the two C-shaped parts located in the same first part stamping area is the second spacing, and the distance between the two C-shaped parts and the edge of the strip is the first spacing. The first spacing is greater than 10 millimeters, and the second spacing is greater than 4 millimeters.
9. The progressive die for combined nesting blanking according to claim 5, characterized in that, An operation station is arranged outside the middle part of the strip.
10. The progressive die for combined nesting blanking according to claim 5, characterized in that, A second part blanking station and a first blanking station are successively arranged after the second blanking station. The first blanking station is suitable for blanking the second part after being processed by the second part blanking station; a first part blanking station and a second blanking station are arranged at the position of the strip behind the first blanking station. The second blanking station is suitable for blanking the first part after being processed by the first part blanking station; a first workpiece blanking station is arranged behind the first part blanking station. A third blanking station is arranged at the first workpiece blanking station, and the third blanking station is suitable for blanking the first workpiece processed by the first workpiece blanking station; a second workpiece groove blanking station and a waste removal station are successively arranged behind the first workpiece blanking station. A first workpiece blanking station is arranged after the waste removal station. A fourth blanking station is arranged at the first workpiece blanking station, and the fourth blanking station is suitable for blanking the first workpiece processed by the first workpiece blanking station.