Discharging base plate device for stamping die and using method

Abstract

The invention discloses a discharging base plate device for a stamping die and a using method, and belongs to the technical field of cold stamping forming. The device comprises a special-shaped hole base plate, a special-shaped push plate and a discharging device. The special-shaped push plate is mounted in a special-shaped hole of the special-shaped hole base plate; the lower portion of the special-shaped hole base plate is fixedly connected with a punch press working table, and the upper portion of the special-shaped hole base plate is fixedly connected with a die base. A discharging device is arranged between the special-shaped hole base plate and the die base. The special-shaped hole base plate is used between the mold and the workbench, it is guaranteed that the mold can be well matched with equipment, and the problem that the mold frame is suspended can be effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of cold stamping, and in particular to a discharge pad device for a stamping die and a use method thereof. Background Art

[0002] In the manufacturing process of vacuum interrupter products, the production of stamping parts is an indispensable key link, and the die unloading pad device is the core auxiliary equipment in the stamping process. Its design rationality and applicability are directly related to production efficiency, product quality and cost control. In the current manufacturing environment, the manufacturing department generally uses 250-ton pneumatic punch presses as the main stamping equipment. This equipment occupies an important position in the automated production line with its high efficiency and stable performance. However, in practical applications, the design parameters of this type of pneumatic punch press, especially its minimum closing height of 500mm and the limitation of the center hole size of the workbench φ220mm, have become the key factors restricting the adaptability of the mold and the flexibility of production. Specifically, when the mold closing height is lower than 500mm or the mold requires the center hole size of the workbench to exceed φ220mm, the matching problem between the mold and the punch press equipment becomes prominent, which not only limits the scope of use of the mold, but also may lead to a decrease in production efficiency and an increase in cost.

[0003] In order to solve this technical problem, the technicians initially tried to adjust the relative position between the mold and the workbench by adding a movable pad on the workbench of the punch press to adapt to the closing height and center hole size requirements of different molds. The principle of this method is that by changing the thickness of the pad, the actual distance between the mold and the workbench can be effectively adjusted, thereby ensuring that the mold can work normally within the minimum closing height allowed by the equipment; at the same time, the center hole design on the pad can meet the different requirements of different molds for the center hole size of the workbench. However, with the deepening of practical application, this solution has gradually exposed its limitations. On the one hand, since different molds require different screw avoidance spaces during the unloading process, the center hole size of the pad needs to be adjusted accordingly. If the pad is configured according to the maximum center hole size, although it can ensure the applicability of most molds, for those molds with smaller center hole sizes, the oversized pad center hole will cause the mold frame to hang on the workbench, which not only weakens the overall stability of the mold, but also may cause the risk of mold damage, thereby affecting the stamping accuracy and surface quality of the product. On the other hand, if pads of different sizes and thicknesses are configured according to the specific needs of different molds, although the problem of suspended mold frames can be solved, the number of pads will increase sharply, which not only greatly increases production costs, but also brings inconvenience in pad management, including the complexity and time cost of storage, search, replacement and other links, which seriously restricts the flexibility and response speed of the production line.

[0004] Therefore, how to ensure a good match between the mold and the workbench while effectively avoiding the mold frame from hanging in the air, controlling costs, and simplifying management has become a technical problem that needs to be urgently solved in the current production of stamping parts for vacuum arc chamber products. Summary of the invention

[0005] In response to the problem in the prior art of how to ensure a good match between the mold and the equipment while effectively avoiding the problem of the mold frame hanging in the air, the present invention provides a unloading pad device for a stamping mold, which uses a special-shaped hole pad between the mold and the workbench to ensure a good match between the mold and the equipment while effectively avoiding the problem of the mold frame hanging in the air.

[0006] In order to achieve the above object, the present invention provides the following technical solutions.

[0007] In the first aspect, the present invention provides a unloading pad device for a stamping die, comprising a special-shaped hole pad, a special-shaped push plate and a unloading device; the special-shaped push plate is installed in the special-shaped hole of the special-shaped hole pad; the lower part of the special-shaped hole pad is connected and fixed to the work table of the punch press, and the upper part of the special-shaped hole pad is connected and fixed to the mold base; a unloading device is arranged between the special-shaped hole pad and the mold base; the special-shaped hole pad comprises an upper plate, a special-shaped support column and a lower plate; the special-shaped support column is arranged between the upper plate and the lower plate; the upper plate is connected to the mold base; the lower plate is connected to the work table of the punch press.

[0008] As a further improvement of the present invention, an upper T-shaped slot is provided on the upper plate; and an upper fixing device is provided between the upper T-shaped slot and the mold base.

[0009] As a further improvement of the present invention, the upper fixing device includes an upper screw and an upper nut; the upper screw passes through the upper T-slot and the hole corresponding to the mold base; the bottom of the upper screw is located in the upper T-slot, the top of the upper screw is higher than the mold base, and the upper nut is provided on the top of the upper screw.

[0010] As a further improvement of the present invention, a lower strip hole is provided in the lower plate; and a lower fixing device is provided between the lower strip hole and the punch press work surface.

[0011] As a further improvement of the present invention, the lower fixing device includes a lower screw and a lower nut; the lower screw passes through the lower strip hole and the hole corresponding to the punch work table; the bottom of the lower screw is located in the punch work table, the top of the lower screw passes through the lower strip hole, and the lower nut is arranged on the top of the lower screw.

[0012] As a further improvement of the present invention, the unloading device includes a mold push-down plate and a mold unloading screw; the mold push-down plate is located above the mold base; the mold unloading screw is arranged between the mold push-down plate and the mold base, and passes through the mold base to reach the inside of the special-shaped support column.

[0013] As a further improvement of the present invention, the top end of the mold unloading screw is fixed in the mold lower push plate; the bottom end of the mold unloading screw contacts the upper surface of the special-shaped push plate in the special-shaped support column.

[0014] As a further improvement of the present invention, the special-shaped push plate includes a special-shaped plate and a special-shaped rod; the bottom of the special-shaped plate is connected to the upper end of the special-shaped rod; the bottom of the special-shaped rod is in contact with the cylinder in the work surface of the punch press.

[0015] As a further improvement of the present invention, the special-shaped plate is in a six-petal shape, and each tentacle area of ​​the six-petal shape presses against an end face of a mold unloading screw.

[0016] A second aspect of the present invention provides a method for using a stamping die unloading pad device, comprising: Install the special-shaped push plate inside the special-shaped hole pad; Fix the lower plate of the special-shaped hole pad on the work surface of the punch press, fix the upper plate under the mold base, and install the special-shaped push plate in the central special-shaped hole inside the special-shaped support column of the special-shaped hole pad; Press the unloading device against the end surface of the special-shaped push plate to ensure that the unloading screw of the mold can move up and down in the special-shaped hole; When the mold is working, the unloading device pushes the special-shaped push plate located in the special-shaped hole pad downward to complete the material deep processing; Afterwards, the special-shaped push plate is ejected from the unloading device, and the parts are unloaded through the mold push plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The unloading pad device for the stamping die of the present invention optimizes the matching and stability between the die and the workbench by introducing the combined design of the special-shaped hole pad, the special-shaped push plate and the unloading device. The present invention utilizes the structural design of the special-shaped hole pad to achieve high-precision matching between the die and the equipment. The special-shaped hole pad includes an upper plate, a special-shaped support column and a lower plate. This structure not only enhances the overall strength and stability of the pad, but also enables the pad to flexibly adapt to the mold bases of different shapes and sizes, ensuring the precise positioning and tight fit of the mold after installation. The setting of the special-shaped support column further reduces the friction and wear caused by the direct contact between the mold and the workbench, prolongs the service life of the mold and the workbench, and at the same time, this design also provides a good shock absorption effect, which helps to improve the stability and product quality during the stamping operation. Secondly, the special-shaped hole design in the special-shaped hole pad provides the necessary conditions for the installation and operation of the special-shaped push plate. The special-shaped push plate can perform precise material pushing and unloading operations according to the needs of material flow during the stamping process of the mold, effectively improving the stamping efficiency. More importantly, the cooperation between the special-shaped push plate and the special-shaped hole pad forms a dynamic support system. Even when the mold is unevenly stressed or the material is unevenly distributed, the timely adjustment of the special-shaped push plate can maintain stable contact between the mold and the workbench, avoiding the occurrence of the mold frame hanging in the air. It not only significantly enhances the overall rigidity of the mold system, but also reduces the risks of mold damage and reduced stamping accuracy caused by the mold frame hanging in the air, providing a solid guarantee for high-precision and high-efficiency stamping operations.

[0018] The unloading device is located between the shaped hole pad and the die base, which can provide additional downward thrust during the stamping process to ensure that the die is always close to the shaped hole pad. Even when the stamping pressure is large or the die size is large, it can effectively prevent the die frame from floating or tilting due to uneven force. The design of the unloading device fully considers the convenience of operation and ease of maintenance. It has a compact structure, reliable action, and can be flexibly adjusted according to actual needs, ensuring the stability and continuity of the stamping operation.

[0019] Furthermore, the unloading pad device of the present invention also has a high degree of flexibility and adaptability. Both the special-shaped hole pad and the special-shaped push plate can be customized according to the specific mold shape and stamping requirements. This high degree of customization enables the device to be widely used in stamping molds of various types and specifications, greatly broadening its application scope and market potential. At the same time, the installation and disassembly process of the device is simple and quick, without the need for complex debugging and calibration, which effectively reduces the difficulty of operation and labor costs, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure in any way. In the drawings: Figure 1 The present invention is a diagram of the initial state of a discharge pad device for a stamping die; wherein (a) is a schematic diagram of the initial state of the discharge pad device for a stamping die; (b) is a schematic diagram of the initial state of the discharge pad device for a stamping die, in which the special-shaped hole pad and the special-shaped push plate are located at the same horizontal position; Figure 2 The present invention is a diagram of a stamping die unloading pad device in use; wherein (a) is a schematic diagram of the stamping die unloading pad device in use; (b) is a schematic diagram of the stamping die unloading pad device in use, in which the shaped hole pad and the shaped push plate are not in the same horizontal position; Figure 3 The present invention discloses a special-shaped hole backing plate of a discharge backing plate device for a stamping die; wherein (a) is a front view of the special-shaped hole backing plate; (b) is a top view of the special-shaped hole backing plate; Figure 4 The present invention discloses a special-shaped push plate of a discharge pad device for a stamping die; wherein (a) is a front view of the special-shaped push plate; and (b) is a top view of the special-shaped push plate.

[0021] In the figure, 1 is the work surface of the punch press; 101 is the cylinder; 2 is the lower screw; 3 is the lower nut; 4 is the special-shaped hole pad; 41 is the upper plate; 42 is the special-shaped support column; 43 is the lower plate; 5 is the upper screw; 6 is the upper nut; 7 is the mold base; 8 is the mold push plate; 9 is the mold unloading screw; 10 is the punch; 11 is the special-shaped push plate; 111 is the special-shaped plate; 112 is the special-shaped rod. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present invention.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] In view of the problem in the prior art of ensuring a good match between the mold and the workbench while effectively avoiding the mold frame from being suspended, the present invention provides a unloading pad device for a stamping mold, comprising: a special-shaped hole pad 4, a special-shaped push plate 11 and a unloading device.

[0025] like Figure 1 As shown, a special-shaped push plate 11 is installed in the special-shaped hole pad 4. The lower part of the special-shaped hole pad 4 is connected and fixed to the punching machine worktable 1, and the upper part of the special-shaped hole pad 4 is connected and fixed to the mold base 7. A discharge device is also provided between the mold base 7 and the special-shaped hole pad 4.

[0026] When the mold is working, the mold will generate upper mold pressure, which acts on the unloading device. At the same time, the punching table 1 applies an upward ejecting force to the special-shaped push plate 11 through the cylinder 101. At this time, Figure 1 As shown, the end of the special-shaped push plate 11 and the upper side of the special-shaped hole pad 4 are located in the same horizontal plane. Figure 2 As shown, the unloading device acts on the mold push block. As the slider moves downward, the unloading device moves downward in the special-shaped hole, pushing the special-shaped push plate 11 downward to complete the material deep processing. At this time, the end of the special-shaped push plate 11 is lower than the upper surface of the special-shaped hole pad 4.

[0027] The unloading device comprises a mold push-down plate 8 and a mold unloading screw 9.

[0028] A punch 10 is provided on the mold base 7, and a mold push-down plate 8 is located above the punch 10 and passes through the punch 10. A mold unloading screw 9 is provided between the mold push-down plate 8 and the mold base 7. The top end of the mold unloading screw 9 is fixed to the bottom of the mold push-down plate 8, and the mold unloading screw 9 is located in contact with the upper surface of the special-shaped push plate 11.

[0029] like Figure 3 As shown, the special-shaped hole pad 4 includes an upper plate 41 , special-shaped support columns 42 and a lower plate 43 .

[0030] An upper plate 41 is disposed at the upper end of the special-shaped support column 42 , and a lower plate 43 is disposed at the lower end of the special-shaped support column 42 .

[0031] The lower plate 43 is provided with a lower strip hole for connecting the punching machine work surface 1 , and the lower strip hole and the holes corresponding to the punching machine work surface 1 are provided with lower fixing devices, and the number of the lower fixing devices is increased according to actual needs.

[0032] The lower fixing device comprises a lower screw rod 2 and a lower nut 3 .

[0033] The lower screw rod 2 is placed in the hole corresponding to the lower strip hole and the punching machine work surface 1 , and the top of the lower screw rod 2 is fastened by the lower nut 3 to achieve a fixed connection between the lower plate 43 and the punching machine work surface 1 .

[0034] An upper T-slot is provided in the upper plate 41, and the upper T-slot is used to connect the mold base 7. An upper fixing device is provided between the upper T-slot and the corresponding holes of the mold base 7, and the number of the upper fixing devices is increased according to actual needs.

[0035] The upper fixing device comprises an upper screw rod 5 and an upper nut 6 .

[0036] The upper screw rod 5 is disposed in a hole corresponding to the upper T-slot and the mold base 7 , and the top of the upper screw rod 5 is fastened by an upper nut 6 , so that the upper plate 41 is fixedly connected to the mold base 7 .

[0037] The middle area of ​​the special-shaped hole pad 4 is a central special-shaped hole, and the central special-shaped hole is used for the up and down movement of the mold unloading screw 9.

[0038] like Figure 4 As shown, the special-shaped push plate 11 includes a special-shaped plate 111 and a special-shaped rod 112 .

[0039] The special-shaped plate 111 is the upper end of the special-shaped rod 112 . The special-shaped plate 111 is in a six-petal shape, and each of the six-petal-shaped antenna areas of the special-shaped plate 111 presses against an end face of a mold unloading screw 9 .

[0040] The second object of the present invention is to provide a method for using a discharge pad device for a stamping die, comprising: Install the special-shaped push plate 11 in the special-shaped hole of the special-shaped hole backing plate 4; The lower plate 43 of the shaped hole backing plate 4 is fixed on the punching machine worktable 1 , the upper plate 41 is fixed below the mold base 7 , and the shaped push plate 11 is installed in the central shaped hole of the shaped hole backing plate 4 .

[0041] The bottom end of the mold unloading screw 9 is pressed against the end surface of the special-shaped push plate 11 to ensure that the mold unloading screw 9 can move up and down in the special-shaped hole, and the top end of the mold unloading screw 9 is connected to the mold lower push plate 8; When the mold is working, the upper mold pressure acts on the mold push plate 8, and at the same time, the cylinder 101 below the mold equipment applies an upward ejecting force on the special-shaped push plate 11. At the same time, the mold unloading screw 9 acts on the mold push block, and the mold push plate 8 moves downward, pushing the mold unloading screw 9 downward in the special-shaped hole in the special-shaped hole pad 4 to complete the material deep processing; after that, the special-shaped push plate 11 pushes out the mold unloading screw 9, and completes the part unloading through the mold push plate 8.

[0042] When the diameter φD of the circle where the mold unloading screw 9 is located varies within the maximum outer circle range of the special-shaped push plate 11, the unloading device can be universal. When the diameter φD of the circle where the mold unloading screw 9 is located is small, and the mold frame is also correspondingly small, the upper end of the mold lower push plate 8 can still provide sufficient support area facing the mold base to ensure the strength of the mold.

[0043] Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but rather with reference to the preceding claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a disclaimer of such subject matter, nor should it be considered that the applicants did not consider such subject matter to be part of the disclosed inventive subject matter.

[0044] The above content is a further detailed description of the present invention. It cannot be determined that the specific implementation methods of the present invention are limited to these. For ordinary technicians in the technical field to which the present invention belongs, without departing from the concept of the present invention, they can also make several simple deductions or substitutions, which should be regarded as belonging to the protection scope of the present invention determined by the submitted claims.

Claims

1. A discharge pad device for a stamping die, characterized in that: It comprises a special-shaped hole backing plate (4), a special-shaped push plate (11) and a discharge device; The special-shaped push plate (11) is installed in the special-shaped hole of the special-shaped hole backing plate (4); The lower part of the special-shaped hole pad (4) is connected and fixed to the punching machine work surface (1), and the upper part of the special-shaped hole pad (4) is connected and fixed to the mold base (7); a discharge device is provided between the special-shaped hole pad (4) and the mold base (7); The special-shaped hole pad (4) comprises an upper plate (41), a special-shaped support column (42) and a lower plate (43); The special-shaped support column (42) is arranged between the upper plate (41) and the lower plate (43); The upper plate (41) is connected to the mold base (7); The lower plate (43) is connected to the punch press work surface (1).

2. A stamping die unloading pad device according to claim 1, characterized in that: The upper plate (41) is provided with an upper T-shaped groove; An upper fixing device is provided between the upper T-shaped groove and the mold base (7).

3. A stamping die unloading pad device according to claim 2, characterized in that: The upper fixing device comprises an upper screw rod (5) and an upper nut (6); The upper screw (5) passes through the upper T-slot and the corresponding holes of the mold base (7); The bottom of the upper screw rod (5) is located in the upper T-shaped groove, the top of the upper screw rod (5) is higher than the mold base (7), and the top of the upper screw rod (5) is provided with the upper nut (6).

4. A stamping die unloading pad device according to claim 1, characterized in that: The lower plate (43) is provided with a lower strip-shaped hole; A lower fixing device is provided between the lower strip-shaped hole and the punching machine working table (1).

5. A stamping die unloading pad device according to claim 4, characterized in that: The lower fixing device comprises a lower screw rod (2) and a lower nut (3); The lower screw rod (2) passes through the lower strip hole and the hole corresponding to the punching machine work surface (1); The bottom of the lower screw rod (2) is located in the punching machine work surface (1), the top of the lower screw rod (2) passes through the lower strip hole, and the top of the lower screw rod (2) is provided with a lower nut (3).

6. A stamping die unloading pad device according to claim 1, characterized in that: The unloading device comprises a mold push-down plate (8) and a mold unloading screw (9); The mold push-down plate (8) is located above the mold base (7); The mold unloading screw (9) is arranged between the mold push-down plate (8) and the mold base (7), and passes through the mold base (7) to reach the inside of the special-shaped support column (42).

7. A stamping die unloading pad device according to claim 6, characterized in that: The top end of the mold unloading screw (9) is fixed in the mold push-down plate (8); The bottom end of the mold discharge screw (9) contacts the upper surface of the special-shaped push plate (11) in the special-shaped support column (42).

8. A stamping die unloading pad device according to claim 7, characterized in that: The special-shaped push plate (11) comprises a special-shaped plate (111) and a special-shaped rod (112); The bottom of the special-shaped plate (111) is connected to the upper end of the special-shaped rod (112); The bottom of the special-shaped rod (112) contacts the cylinder (101) in the punching machine working table (1).

9. A stamping die unloading pad device according to claim 8, characterized in that: The special-shaped plate (111) is in a six-petal shape, and each tentacle region of the six-petal shape presses against an end face of a mold discharge screw (9).

10. A method for using a discharge pad device for a stamping die, characterized in that: A stamping die unloading pad device according to any one of claims 1 to 9, comprising: Install a special-shaped push plate (11) inside the special-shaped hole backing plate (4); The lower plate (43) of the shaped hole pad (4) is fixed on the punching machine work surface (1), the upper plate (41) is fixed below the mold base (7), and the shaped push plate (11) is installed in the central shaped hole inside the shaped support column of the shaped hole pad (4); The discharge device is pressed against the end surface of the special-shaped push plate (11) to ensure that the mold discharge screw (9) can move up and down in the special-shaped hole; When the mold is working, the unloading device pushes the special-shaped push plate (11) located in the special-shaped hole pad (4) downward to complete the material deep-drawing processing; Afterwards, the special-shaped push plate (11) pushes out the unloading device, and the parts are unloaded through the mold lower push plate (8).

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