Stamping die

Abstract

The utility model relates to a stamping die. The stamping die comprises an upper die mechanism and a lower die mechanism, the upper die mechanism and the lower die mechanism are movably combined, the upper die mechanism comprises a male die, the lower die mechanism comprises a female die, and the male die and the female die are oppositely arranged in a closed or separated mode; the male die is provided with a first stamping face, the female die is provided with a second stamping face, the first stamping face and the second stamping face are oppositely arranged, and the male die is provided with a receding groove in the first stamping face. The stamping die has the advantages that the production quality is improved, and the production cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of mold equipment, and in particular to a stamping mold. Background Art

[0002] Stamping is a production technology that uses the power of conventional or special stamping equipment to directly subject sheet metal to deformation force in the die, thereby obtaining product parts with certain shapes, sizes and performances. During the manufacturing process, the design of the stamping die determines the quality of the stamped parts.

[0003] In general stamping processes, when metal materials are formed at room temperature, the flattening structure of traditional stamping dies will cause the material to harden extremely quickly, and the flattening force will increase, causing unbalanced forces on both sides of the die, resulting in tilting of both sides of the upper die slide of the stamping machine, damage to the slide rails of the stamping machine, and affecting the service life of the stamping machine. In addition, the die has many forming stations, the male and female dies are frequently repaired, and the equipment utilization rate is low. During the stamping trial process, it was found that once compressed to more than 50%, the hardness would rise linearly, reaching 10 times that of the raw material, and it would be very difficult to flatten it again, and it would cause unstable thickness, affecting production quality. Unstable quality requires full inspection and confirmation of thickness during the production process, resulting in increased manufacturing costs. Therefore, general stamping dies have the defects of unstable processing quality and high manufacturing costs. Summary of the invention

[0004] Based on this, it is necessary to provide a stamping die to address the problems of unstable processing quality and high manufacturing cost of the stamping die.

[0005] A stamping die comprises an upper die mechanism and a lower die mechanism, wherein the upper die mechanism and the lower die mechanism are movably combined, the upper die mechanism comprises a male die, the lower die mechanism comprises a female die, and the male die and the female die are arranged relatively to each other in a closed or separated manner;

[0006] The male die is provided with a first stamping surface, the female die is provided with a second stamping surface, the first stamping surface and the second stamping surface are arranged opposite to each other, and the male die is provided with a clearance groove on the first stamping surface.

[0007] In one embodiment, the upper mold mechanism further includes an upper mold plate and a male mold plate, the male mold plate is connected to the upper mold plate, and the male mold is installed on the male mold plate;

[0008] The lower mold mechanism comprises a lower mold plate and a female mold plate, wherein the female mold plate is connected to the lower mold plate, the female mold plate is provided with a female mold station groove, and the female mold is installed in the female mold station groove.

[0009] In one embodiment, the second stamping surface is arranged corresponding to the vertical projection area of ​​the first stamping surface, the second stamping surface has an angle with the horizontal plane, and the first stamping surface is parallel to the second stamping surface.

[0010] In one embodiment, the first stamping surface and the second stamping surface are polished mirror surfaces.

[0011] In one embodiment, the upper mold mechanism also includes an upper pad and a stripping plate, the upper pad is arranged between the upper mold and the positive mold, and the stripping plate is arranged on the positive mold; the lower mold mechanism also includes a lower pad, and the lower pad is arranged between the lower mold and the negative mold.

[0012] In one embodiment, the stamping die also includes a balancing mechanism, which is arranged between the upper template and the lower pad, the installation position of the male mold and the female mold is a stamping station, the installation position of the balancing mechanism is a balancing station, and the stamping station and the balancing station are distributed on opposite sides of the stamping die.

[0013] In one embodiment, the balancing mechanism includes a balancing rod and an elastic member, wherein the elastic member is connected to the balancing rod, the elastic member abuts against the upper template, and the balancing rod can movably abut against the lower pad.

[0014] In one of the embodiments, the stamping die further includes an oil supply mechanism, the female die plate is provided with an oil supply station groove on one side of the female die, the oil supply mechanism is arranged in the oil supply station groove, and the oil supply mechanism is used to supply oil to the workpiece to be stamped.

[0015] In one embodiment, the oil supply mechanism includes an oil storage inlet, an oil pipe, a regulating valve and a cylinder. The oil storage inlet is installed in the oil supply station slot, one end of the oil pipe is connected to the oil storage inlet, and the other end of the oil pipe is connected to the regulating valve. The regulating valve connects the cylinder and the machine tool oil supply equipment.

[0016] In one embodiment, the upper mold mechanism also includes a positive mold plate insert and a stripper plate insert. The positive mold plate insert is installed at the positive mold at the installation position of the positive mold plate, and the positive mold is connected to the positive mold plate insert. The stripper plate insert is installed at the position where the positive mold passes through the stripper plate, and the positive mold passes through the stripper plate insert.

[0017] The above-mentioned stamping die is used to be installed on the stamping equipment so that the upper die mechanism can be movably combined with the lower die mechanism. Before stamping, the upper die mechanism and the lower die mechanism are separated, and the workpiece to be processed is placed on the female die of the lower die mechanism, and then the stamping equipment drives the upper die mechanism to combine with the lower die mechanism, and the male die of the upper die mechanism and the female die of the lower die mechanism are used to stamp the workpiece to be processed, so that the workpiece to be processed forms a stamped part with a fixed thickness. By providing a clearance groove on the first stamping surface of the male die, when the male die stamps the workpiece, the excess metal material can escape from the clearance groove, thereby reducing the flattening force, and then making the thickness of the stamped part stable after stamping, reducing the need for manual inspection, and having the advantages of improving production quality and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 is a schematic diagram of the structure of the stamping die described in an embodiment of the present application.

[0019] FIG2 is a schematic diagram of the structure of the male and female dies of the stamping die described in an embodiment of the present application.

[0020] FIG. 3 is a side view of the male and female dies of the stamping die according to an embodiment of the present application.

[0021] FIG. 4 is a side view of the internal structure of the stamping die described in an embodiment of the present application.

[0022] FIG. 5 is a front view of the internal structure of the stamping die described in an embodiment of the present application.

[0023] FIG. 6 is a top view of the internal structure of the stamping die described in an embodiment of the present application.

[0024] Reference numerals: 100, upper die mechanism; 110, upper die plate; 120, upper pad; 130, male die plate; 131, male die; 1311, first punching surface; 131A, clearance groove; 132, male die plate insert; 140, stripper plate pad; 150, stripper plate; 151, stripper plate insert;

[0025] 200, lower die mechanism; 210, lower die plate; 220, lower pad; 230, female die plate; 231, female die; 2311, second punching surface; 230A, female die station slot; 230B, oil supply station slot;

[0026] 300, balancing mechanism; 310, balancing rod; 320, elastic member;

[0027] 400, oil supply mechanism; 410, oil storage inlet; 420, oil pipe; 430, regulating valve. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0029] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0030] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0034] Referring to Figures 1 to 3, Figure 1 shows a schematic diagram of the structure of a stamping die in an embodiment of the present application, and Figures 2 and 3 show schematic diagrams of the structure of a male die and a female die of a stamping die in an embodiment of the present application. The stamping die provided in an embodiment of the present application includes an upper die mechanism 100 and a lower die mechanism 200, and the upper die mechanism 100 and the lower die mechanism 200 can be movably combined. The upper die mechanism 100 includes a male die 131, and the male die 131 is arranged toward the lower die mechanism 200. The lower die mechanism 200 includes a female die 231, and the female die 231 is arranged toward the upper die mechanism 100. The male die 131 and the female die 231 can be arranged relative to each other in a closed or separated manner. The male die 131 is provided with a first stamping surface 1311, and the female die 231 is provided with a second stamping surface 2311. The first stamping surface 1311 and the second stamping surface 2311 are arranged relative to each other, and the male die 131 is provided with a clearance groove 131A on both sides of the first stamping surface 1311.

[0035] The stamping die described in the embodiment of the present application is installed on the stamping equipment so that the upper die mechanism 100 can be movably combined with the lower die mechanism 200. Before stamping, the upper die mechanism 100 and the lower die mechanism 200 are separated, and the workpiece to be processed is placed on the female die 231 of the lower die mechanism 200. Then, the stamping equipment drives the upper die mechanism 100 to be combined with the lower die mechanism 200, and the male die 131 of the upper die mechanism 100 and the female die 231 of the lower die mechanism 200 are used to stamp the workpiece to be processed, so that the workpiece to be processed forms a stamping part with a fixed thickness. After the stamping is completed, the upper die mechanism 100 and the lower die mechanism 200 are separated, and the stamping part can be unloaded.

[0036] The stamping die described in the embodiment of the present application sets up clearance grooves 131A on both sides of the first stamping surface 1311 of the male die 131. When the male die 131 stamps the workpiece, excess metal material of the workpiece can escape from the clearance grooves 131A, thereby reducing the flattening force, thereby stabilizing the thickness of the stamping part after stamping, reducing the need for manual inspection, and having the advantages of improving production quality and reducing production costs.

[0037] In an optional embodiment, as shown in FIG1 , the upper mold mechanism 100 further includes an upper mold plate 110, an upper pad 120, a male mold plate 130, a stripper plate pad 140 and a stripper plate 150, the upper mold plate 110, the upper pad 120, the male mold plate 130, the stripper plate pad 140 and the stripper plate 150 are sequentially connected, the male mold 131 is installed on the male mold plate 130, and the male mold 131 penetrates the stripper plate pad 140 and the stripper plate 150 and is arranged opposite to the female mold 231. Further, the lower mold mechanism 200 includes a lower mold plate 210, a lower pad 220 and a female mold plate 230, the lower mold plate 210, the lower pad 220 and the female mold plate 230 are sequentially connected, the female mold plate 230 is provided with a female mold station slot 230A, and the female mold 231 is installed in the female mold station slot 230A. The upper die mechanism 100 is composed of a plurality of plates connected, the upper die plate 110 is used to connect with the stamping equipment, the upper pad 120 is used to bear the impact force, the male die plate 130 is used to install the male die 131, and the stripper plate 150 and the stripper plate pad 140 are used to install the stripper component. Similarly, the lower die plate 210 is used to connect with the stamping equipment, the lower pad 220 is used to bear the impact force, and the female die plate is used to install the female die 231.

[0038] In an optional embodiment, as shown in FIG3 , the second stamping surface 2311 is arranged corresponding to the vertical projection area of ​​the first stamping surface 1311, the second stamping surface 2311 is at an angle to the horizontal plane, and the first stamping surface 1311 is parallel to the second stamping surface 2311. By setting a slight slope relative to the horizontal plane for the first stamping surface 1311 and the second stamping surface 2311, the deformation resistance of the material is reduced when the stamping part is stamped, the material fluidity is enhanced, and the flattening force is reduced, so that the stamping flatness of the stamping part is better and the production quality of the product is improved.

[0039] In an optional embodiment, the first stamping surface 1311 and the second stamping surface 2311 are mirror-polished surfaces. By mirror-polishing the first stamping surface 1311 and the second stamping surface 2311, the friction between the first stamping surface 1311 and the second stamping surface 2311 is reduced, so that when the stamping part is stamped, the contact fluidity between the stamping part and the first stamping surface 1311 and the second stamping surface 2311 is reduced, the deformation resistance of the material is reduced, and the flattening force is reduced, so that the stamping flatness of the stamping part is better and the production quality of the product is improved.

[0040] As shown in Figures 4 to 6, Figures 4 to 6 show schematic diagrams of the internal structure of a stamping die in an embodiment of the present application. In an optional embodiment, the stamping die further includes a balancing mechanism 300, which is disposed between the upper template 110 and the lower pad 220. The male mold 131 and the female mold 231 are installed at a stamping station, and the balancing mechanism 300 is installed at a balancing station. The stamping station and the balancing station are distributed on opposite sides of the stamping die. When the stamping die is stamping a stamped part, the resistance encountered at the stamping station is the greatest. By arranging a balancing station on the side of the die where the force is small, and arranging a balancing mechanism 300 on the balancing station, the balancing mechanism 300 is used to balance the overall flattening force of the die, reduce the damage to the stamping equipment caused by inconsistent flattening force, and improve the stability of the flattening thickness.

[0041] Specifically, as shown in FIG5 , the balancing mechanism 300 includes a balancing rod 310 and an elastic member 320, the elastic member 320 is connected to the balancing rod 310, the elastic member 320 abuts against the upper template 110, and the balancing rod 310 can movably abut against the lower pad 220. In a preferred example, the elastic member 320 is a nitrogen spring. By setting the balancing rod 310 and the elastic member 320, the elastic member 320 is arranged on the upper template 110, when the upper mold mechanism 100 and the lower mold mechanism 200 are combined, the balancing rod 310 abuts against the lower pad 220, thereby applying a flattening force to the stamping die on one side of the balancing station, so that the overall force of the stamping die is balanced, avoiding the problem of excessive flattening force on one side, and reducing damage to the slide rail of the stamping equipment.

[0042] In an optional embodiment, as shown in FIGS. 4 to 6 , the stamping die further includes an oil supply mechanism 400, and the female mold plate 230 is provided with an oil supply station groove 230B on one side of the female mold 231, and the oil supply mechanism 400 is arranged in the oil supply station groove 230B, and the oil supply mechanism 400 is used to supply oil to the workpiece to be stamped. By arranging the oil supply mechanism 400 on one side of the stamping station, oil is supplied to the stamping part during stamping, and the oil supply can form a lubricating film on the contact surface of the stamping part, reduce the friction coefficient, reduce friction heat, thereby enhancing the fluidity of the material during stamping, reducing the deformation resistance of the material, reducing the flattening force, and improving the stability of the flattening thickness.

[0043] Specifically, as shown in FIG. 5 and FIG. 6 , the oil supply mechanism 400 includes an oil storage inlet 410, an oil pipe 420, a regulating valve 430 and a cylinder. The oil storage inlet 410 is installed in the oil supply station slot 230B, one end of the oil pipe 420 is connected to the oil storage inlet 410, and the other end of the oil pipe 420 is connected to the regulating valve 430. The regulating valve 430 connects the cylinder and the machine tool oil supply device. In the oil storage station slot 230B, the machine tool oil supply device inputs oil into the oil pipe 420 through the regulating valve 430 and the cylinder, and the oil pipe 420 inputs oil into the oil storage inlet 410, thereby delivering oil from the oil storage inlet 410 to the stamping part. The oil supply can be controlled by the regulating valve 430 and the cylinder to ensure the amount of oil in each stamping of the stamping part and improve the stability of the flattening thickness.

[0044] In an optional embodiment, as shown in FIG. 4 , the upper mold mechanism 100 further includes a male mold plate insert 132 and a stripper plate insert 151. The male mold plate insert 132 is installed at the installation position of the male mold 131 located at the male mold plate 130. The male mold 131 is connected to the male mold plate insert 132. The stripper plate insert 151 is installed at the position where the male mold 131 passes through the stripper plate 150. The male mold 131 passes through the stripper plate insert 151. By providing the male mold plate insert 132 and the stripper plate insert 151, when adjusting the male mold 131, the offset adjustment can be achieved by replacing different male mold plate inserts 132 and stripper plate inserts 151, which has the advantage of being easy to use.

[0045] The stamping die described in the embodiment of the present application has the following beneficial effects:

[0046] 1. By arranging the clearance grooves 131A on both sides of the first stamping surface 1311 of the male die 131, when the male die 131 is stamping the workpiece, the excess metal material of the workpiece can escape from the clearance grooves 131A, thereby reducing the flattening force, and then stabilizing the thickness of the stamped part after stamping, reducing the need for manual inspection, and having the advantages of improving production quality and reducing production costs.

[0047] 2. By setting a balancing station on the side of the mold with less force, a balancing mechanism 300 is set on the balancing station. The balancing mechanism 300 is used to balance the overall flattening force of the mold, reduce the damage to the stamping equipment caused by inconsistent flattening force, and improve the stability of the flattening thickness.

[0048] 3. By arranging an oil supply mechanism 400 on one side of the stamping station, oil is supplied to the stamped parts during stamping. The oil supply can form a lubricating film on the contact surface of the stamped parts, reduce the friction coefficient, reduce friction heat, thereby enhancing the fluidity of the material during stamping, reducing the deformation resistance of the material, reducing the flattening force, and improving the stability of the flattening thickness.

[0049] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A stamping die, characterized in that: The invention comprises an upper die mechanism (100) and a lower die mechanism (200), wherein the upper die mechanism (100) and the lower die mechanism (200) are movably combined, the upper die mechanism (100) comprises a male die (131), the lower die mechanism (200) comprises a female die (231), and the male die (131) and the female die (231) are relatively arranged in a closed or separated manner; The male die (131) is provided with a first stamping surface (1311), the female die (231) is provided with a second stamping surface (2311), the first stamping surface (1311) and the second stamping surface (2311) are arranged opposite to each other, and the male die (131) is provided with a clearance groove (131A) on the first stamping surface (1311).

2. The stamping die according to claim 1, characterized in that: The upper mold mechanism (100) further comprises an upper mold plate (110) and a male mold plate (130), wherein the male mold plate (130) is connected to the upper mold plate (110), and the male mold (131) is mounted on the male mold plate (130); The lower mold mechanism (200) comprises a lower mold plate (210) and a female mold plate (230), wherein the female mold plate (230) is connected to the lower mold plate (210), the female mold plate (230) is provided with a female mold working slot (230A), and the female mold (231) is installed in the female mold working slot (230A).

3. The stamping die according to claim 1, characterized in that: The second stamping surface (2311) is arranged corresponding to the vertical projection area of ​​the first stamping surface (1311), there is an angle between the second stamping surface (2311) and the horizontal plane, and the first stamping surface (1311) is parallel to the second stamping surface (2311).

4. The stamping die according to claim 1, characterized in that: The first stamping surface (1311) and the second stamping surface (2311) are polished mirror surfaces.

5. The stamping die according to claim 2, characterized in that: The upper die mechanism (100) further comprises an upper pad (120) and a stripper plate (150), wherein the upper pad (120) is arranged between the upper die plate (110) and the male die plate (130), and the stripper plate (150) is arranged on the male die plate (130); the lower die mechanism (200) further comprises a lower pad (220), wherein the lower pad (220) is arranged between the lower die plate (210) and the female die plate (230).

6. The stamping die according to claim 5, characterized in that: The stamping die further comprises a balancing mechanism (300), the balancing mechanism (300) being arranged between the upper die plate (110) and the lower pad (220), the male die (131) and the female die (231) being installed at a stamping station, the balancing mechanism (300) being installed at a balancing station, and the stamping station and the balancing station being distributed on opposite sides of the stamping die.

7. The stamping die according to claim 6, characterized in that: The balancing mechanism (300) comprises a balancing rod (310) and an elastic member (320), wherein the elastic member (320) is connected to the balancing rod (310), the elastic member (320) abuts against the upper template (110), and the balancing rod (310) can movably abut against the lower pad (220).

8. The stamping die according to claim 2, characterized in that: The stamping die further comprises an oil supply mechanism (400); the female die plate (230) is provided with an oil supply station groove (230B) on one side of the female die (231); the oil supply mechanism (400) is arranged in the oil supply station groove (230B); and the oil supply mechanism (400) is used to supply oil to the workpiece to be stamped.

9. The stamping die according to claim 8, characterized in that: The oil supply mechanism (400) comprises an oil storage inlet (410), an oil pipe (420), a regulating valve (430) and a cylinder. The oil storage inlet (410) is installed in the oil supply station slot (230B). One end of the oil pipe (420) is connected to the oil storage inlet (410), and the other end of the oil pipe (420) is connected to the regulating valve (430). The regulating valve (430) is connected to the cylinder and the machine tool oil supply equipment.

10. The stamping die according to claim 5, characterized in that: The upper mold mechanism (100) further comprises a male mold plate insert (132) and a stripper plate insert (151); the male mold plate insert (132) is installed at an installation position of the male mold (131) located on the male mold plate (130); the male mold (131) is connected to the male mold plate insert (132); the stripper plate insert (151) is installed at a position where the male mold (131) passes through the stripper plate (150); the male mold (131) passes through the stripper plate insert (151).

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