Stamping die
By designing the combination of mold components and shock-absorbing rubber parts of stamping molds, the problem of low machining accuracy of the front port plate of the traditional washing machine drum is solved, and efficient and accurate bending and compression of the front port plate is achieved, which improves production efficiency and processing accuracy.
Patent Information
- Application Number
- CN202422238858.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The manufacturing process of the drum front plate of the traditional washing machine relies on a special edge curling machine, which leads to high costs, large space occupancy, low processing accuracy, and displacement problems, affecting production efficiency and return on investment.
A stamping mold is designed, including an upper die seat, a right-angle stamping mold, a lower die seat, a right-angle forming limiting mold and a shock-absorbing rubber component. Through the movable stroke of the shock-absorbing rubber component and the coordination of the right-angle forming limiting mold, the front port plate is accurately bent and pressed, reducing displacement and improving processing accuracy.
It improves the processing accuracy of the front port plate, reduces surface damage and subsequent trimming, and enhances the uniformity and efficiency of the processing process.
Smart Images
Figure CN223043485U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tooling, in particular to a stamping die. Background Art
[0002] A washing machine is a cleaning appliance that uses electric energy to generate mechanical action to wash clothes. It mainly consists of a cabinet, a washing and dewatering tub (in some cases, the washing tub and the dewatering tub are separated), a transmission and control system, etc., and some are also equipped with a heating device.
[0003] Washing machines can be divided into various types, including pulsator washing machines, drum washing machines or steam washing machines, etc. Among them, the manufacturing process of the front panel of the drum of a traditional washing machine relies on a special flanging machine to make the front panel have a specific shape. However, the special flanging machine not only has a high cost and occupies a large amount of space, but also due to the lack of pressing on the front panel, the front panel has displacement during flanging, resulting in the need to increase the trimming work subsequently, reducing the production efficiency and return on investment.
[0004] Therefore, there is an urgent need to provide a stamping die to solve the above problems. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a stamping die that can press the front panel to be processed during stamping and bending, improving the processing accuracy of the front panel.
[0006] To achieve the above purpose, the following technical solutions are provided:
[0007] A stamping die, comprising:
[0008] A first die assembly, including an upper die base and a right-angle stamping die, the right-angle stamping die is arranged on the upper die base;
[0009] A second die assembly, including a lower die base, a right-angle forming limit die and a shock-absorbing rubber part, the right-angle forming limit die is arranged on the lower die base, the outer side wall of the right-angle stamping die is matched with the inner side wall of the right-angle forming limit die for bending the outer edge of the front panel, and the shock-absorbing rubber part is arranged on the lower die base and located inside the right-angle forming limit die;
[0010] The shock-absorbing rubber part is configured to have a stroke of moving relative to the right-angle forming limit die, and the stroke includes a first state in which the front panel is not pressed and is flush with the upper surface of the right-angle forming limit die, and a second state in which the front panel is pressed and is lower than the upper surface of the right-angle forming limit die.
[0011] As an alternative to the stamping die, the second die assembly further includes a rib punch, the rib punch is disposed on the lower die base, one end face of the rib punch away from the lower die base has a convex portion, and one end of the right-angle stamping die away from the upper die base is recessed with an avoidance groove, and the avoidance groove is disposed opposite to the convex portion.
[0012] As an alternative to the stamping die, the convex portion has a V-shaped structure.
[0013] As an alternative to the stamping die, the second die assembly further includes a knockout plate, the knockout plate is disposed at one end of the shock-absorbing rubber member away from the lower die base, and the knockout plate is located between the rib punch and the right-angle forming limit die.
[0014] As an alternative to the stamping die, the second die assembly further includes a first shim block, the first shim block is disposed between the rib punch and the lower die base, and the knockout plate is stopped by the first shim block.
[0015] As an alternative to the stamping die, one end face of the first shim block away from the lower die base is provided with a first limiting step surface, and the inner side wall of the rib punch abuts against the first limiting step surface.
[0016] As an alternative to the stamping die, the second die assembly further includes a second shim block, the second shim block is disposed between the right-angle forming limit die and the lower die base, and the knockout plate is stopped by the second shim block.
[0017] As an alternative to the stamping die, one end face of the second shim block away from the lower die base is provided with a second limiting step surface, and the outer side wall of the right-angle forming limit die abuts against the second limiting step surface.
[0018] As an alternative to the stamping die, the second die assembly further includes positioning pins, a plurality of the positioning pins are circumferentially spaced apart at one end of the right-angle forming limit die away from the lower die base, and the plurality of positioning pins enclose a positioning area, and the front plate is located in the positioning area.
[0019] As an alternative to the stamping die, the first die assembly further includes a limiting sliding wall ring, one end of the limiting sliding wall ring away from the upper die base is provided with an annular portion, and the inner diameter of the annular portion is not less than the outer diameter of the right-angle forming limit die.
[0020] Compared with the prior art, the beneficial effects of the present utility model are:
[0021] The stamping die provided by the present utility model sets a right-angle stamping die on the upper die base, and a right-angle forming limit die and a shock-absorbing rubber part are installed on the lower die base. The upper die base can drive the right-angle stamping die to move up and down in the height direction. Place the front mouth plate on the right-angle forming limit die and the shock-absorbing rubber part. During the process of the right-angle stamping die pressing down, the right-angle stamping die first abuts against the shock-absorbing rubber part in the first state and then presses down. On the one hand, due to the decrease in the height of the upper surface of the shock-absorbing rubber part, the outer side wall of the right-angle stamping die is misaligned with the inner side wall of the right-angle forming limit die, so that the outer edge of the front mouth plate is bent into a right angle. On the one hand, the front mouth plate is pressed between the lower surface of the right-angle stamping die and the upper surface of the shock-absorbing rubber part in the second state, avoiding displacement when the front mouth plate is bent, and being able to press the front mouth plate to be processed during stamping and bending, improving the processing accuracy of the front mouth plate. On the other hand, because the shock-absorbing rubber part has a shock-absorbing function, the pressure received by the workpiece during the stamping process is more evenly distributed, avoiding surface damage, and at the same time reducing subsequent cleaning and trimming work. Moreover, when the downward pressure is removed, the shock-absorbing rubber part also has a reset function. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments of the present utility model. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present utility model and these drawings.
[0023] Figure 1 It is a schematic diagram of the first die assembly of the stamping die in the embodiment of the present utility model close to the second die assembly;
[0024] Figure 2 It is a schematic diagram of the first die assembly of the stamping die in the embodiment of the present utility model away from the second die assembly.
[0025] Reference numerals:
[0026] 1. First die assembly; 2. Second die assembly; 3. Front mouth plate;
[0027] 11. Upper die base; 12. Right-angle stamping die; 121. Avoidance groove; 13. Limit sliding wall ring; 131. Ring part;
[0028] 21. Lower die base; 22. Right-angle forming limit die; 23. Shock-absorbing rubber part; 24. Reinforcing rib punch; 241. Protruding part; 25. Stripping plate; 26. First heightening block; 261. First limiting step surface; 27. Second heightening block; 271. Second limiting step surface; 28. Positioning pin. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the drawings here can be arranged and designed in various different configurations.
[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, the meaning of "plural" is two or more.
[0031] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0032] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.
[0033] In order to be able to press the front mouth plate to be processed during stamping and bending and improve the processing accuracy of the front mouth plate, this embodiment provides a stamping die. The following combines Figures 1 to 2 to describe the specific content of this embodiment in detail. It should be noted that the height direction mentioned in this embodiment is Figure 2 the Z direction in
[0034] As Figure 1 Combined with Figure 2As shown in the figure, the stamping die in this embodiment includes a first die assembly 1 and a second die assembly 2. The first die assembly 1 includes an upper die base 11 and a right-angle stamping die 12, and the right-angle stamping die 12 is arranged on the upper die base 11. The second die assembly 2 includes a lower die base 21, a right-angle forming limit die 22 and a shock-absorbing rubber part 23. The right-angle forming limit die 22 is arranged on the lower die base 21. The outer side wall of the right-angle stamping die 12 is matched with the inner side wall of the right-angle forming limit die 22 for bending the outer edge of the front mouth plate 3. The shock-absorbing rubber part 23 is arranged on the lower die base 21 and is located inside the right-angle forming limit die 22. The shock-absorbing rubber part 23 is configured to have a stroke that can move relative to the right-angle forming limit die 22. The stroke includes a first state in which the front mouth plate 3 is not pressed and is flush with the upper surface of the right-angle forming limit die 22, and a second state in which the front mouth plate 3 is pressed and is lower than the upper surface of the right-angle forming limit die 22. Exemplarily, the material of the shock-absorbing rubber part 23 can be polyurethane rubber, which is polymerized from polyester (or polyether) and diisocyanate compounds.
[0035] In short, for the stamping die provided in this embodiment, the right-angle stamping die 12 is arranged on the upper die base 11, and the right-angle forming limit die 22 and the shock-absorbing rubber part 23 are installed on the lower die base 21. The upper die base 11 can drive the right-angle stamping die 12 to move up and down in the height direction. The front mouth plate 3 is placed on the right-angle forming limit die 22 and the shock-absorbing rubber part 23. During the process of the right-angle stamping die 12 pressing down, the right-angle stamping die 12 first abuts against the shock-absorbing rubber part 23 in the first state and then presses down. On the one hand, since the height of the upper surface of the shock-absorbing rubber part 23 decreases, the outer side wall of the right-angle stamping die 12 is misaligned with the inner side wall of the right-angle forming limit die 22, so that the outer edge of the front mouth plate 3 is bent into a right angle. On the one hand, the front mouth plate 3 is pressed between the lower surface of the right-angle stamping die 12 and the upper surface of the shock-absorbing rubber part 23 in the second state, avoiding displacement when the front mouth plate 3 is bent, being able to press the front mouth plate 3 to be processed during stamping and bending, and improving the processing accuracy of the front mouth plate 3. On the other hand, because the shock-absorbing rubber part 23 has a shock-absorbing function, the pressure received by the workpiece during the stamping process is more evenly distributed, avoiding surface damage, and at the same time reducing subsequent cleaning and trimming work. Moreover, when the downward pressure is removed, the shock-absorbing rubber part 23 also has a reset function.
[0036] Further, the second die assembly 2 further includes a reinforcing rib punch 24. The reinforcing rib punch 24 is arranged on the lower die base 21. One end face of the reinforcing rib punch 24 far away from the lower die base 21 has a convex part 241. An avoidance groove 121 is recessed at one end of the right-angle stamping die 12 far away from the upper die base 11. The avoidance groove 121 is arranged opposite to the convex part 241. During the process of the right-angle stamping die 12 pressing down, the front mouth plate 3 abuts against the reinforcing rib punch 24. By adding the convex part 241 on the reinforcing rib punch 24, it is convenient to process corresponding reinforcing ribs on the front mouth plate 3, which helps to improve the structural strength of the front mouth plate 3.
[0037] Furthermore, in this embodiment, the convex portion 241 has a V-shaped structure. Exemplarily, the convex portion 241 can also be structures such as circular or square, etc., and no further limitations are imposed here.
[0038] Furthermore, the second mold assembly 2 further includes a knockout plate 25. The knockout plate 25 is disposed at one end of the shock-absorbing rubber member 23 away from the lower mold base 21, and the knockout plate 25 is located between the ribbed punch 24 and the right-angle forming limit die 22. By adding the knockout plate 25 on the upper surface of the shock-absorbing rubber member 23, the knockout plate 25 is used to contact the workpiece instead of the upper surface of the shock-absorbing rubber member 23, reducing the wear on the shock-absorbing rubber member 23. In this embodiment, the surface area of the knockout plate 25 is larger than the cross-sectional area of the shock-absorbing rubber member 23, which helps to increase the contact area between the knockout plate 25 and the workpiece and makes the force on the workpiece more uniform.
[0039] Furthermore, the second mold assembly 2 further includes a first shim block 26. The first shim block 26 is disposed between the ribbed punch 24 and the lower mold base 21, and the knockout plate 25 is stopped by the first shim block 26. By adding the first shim block 26, on the one hand, it is convenient to increase the height of the ribbed punch 24 according to the use requirements, and on the other hand, it can also limit the downward movement stroke of the knockout plate 25.
[0040] Furthermore, a first limiting step surface 261 is provided on one end surface of the first shim block 26 away from the lower mold base 21, and the inner side wall of the ribbed punch 24 abuts against the first limiting step surface 261. By adding the first limiting step surface 261 on the first shim block 26, it is convenient to limit the position of the ribbed punch 24 on the first shim block 26 and improve the installation accuracy of the ribbed punch 24.
[0041] Furthermore, the second mold assembly 2 further includes a second shim block 27. The second shim block 27 is disposed between the right-angle forming limit die 22 and the lower mold base 21, and the knockout plate 25 is stopped by the second shim block 27. By adding the second shim block 27, on the one hand, it is convenient to increase the height of the right-angle forming limit die 22 according to the use requirements, and on the other hand, it can also limit the downward movement stroke of the knockout plate 25.
[0042] Furthermore, a second limiting step surface 271 is provided on one end surface of the second shim block 27 away from the lower mold base 21, and the outer side wall of the right-angle forming limit die 22 abuts against the second limiting step surface 271. By adding the second limiting step surface 271 on the second shim block 27, it is convenient to limit the position of the right-angle forming limit die 22 on the second shim block 27 and improve the installation accuracy of the right-angle forming limit die 22.
[0043] Further, the second mold assembly 2 further includes positioning pins 28. A plurality of positioning pins 28 are circumferentially and spacedly arranged at one end of the right-angle forming limit mold 22 away from the lower mold base 21. The plurality of positioning pins 28 enclose a positioning area, and the front mouth plate 3 is located within the positioning area. By placing the workpiece front mouth plate 3 on the right-angle forming limit mold 22 and circumferentially arranging a plurality of positioning pins 28 on the right-angle forming limit mold 22, it is convenient to position the position of the front mouth plate 3 on the right-angle forming limit mold 22 through the plurality of positioning pins 28.
[0044] Further, the first mold assembly 1 further includes a limit sliding wall ring 13. An annular portion 131 is provided at one end of the limit sliding wall ring 13 away from the upper mold base 11. The inner diameter of the annular portion 131 is not less than the outer diameter of the right-angle forming limit mold 22. During the lifting and lowering of the limit sliding wall ring 13, by sliding the annular portion 131 along the outer wall surface of the right-angle forming limit mold 22, it is convenient to guide the entire first mold assembly 1 to move only in the height direction.
[0045] Note that the above is only the preferred embodiment of the present invention and the applied technical principle. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described here. Various obvious changes, re-adjustments, and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.
Claims
1. Stamping die, characterized in that: include: A first die assembly (1) comprises an upper die base (11) and a right-angle stamping die (12), wherein the right-angle stamping die (12) is arranged on the upper die base (11); The second mold assembly (2) comprises a lower mold base (21), a right-angle forming limit mold (22) and a shock-absorbing rubber member (23), wherein the right-angle forming limit mold (22) is arranged on the lower mold base (21), the outer side wall of the right-angle punching mold (12) cooperates with the inner side wall of the right-angle forming limit mold (22) to bend the outer edge of the front plate (3), and the shock-absorbing rubber member (23) is arranged on the lower mold base (21) and is located on the inner side of the right-angle forming limit mold (22); The shock-absorbing rubber member (23) is configured to have a movable stroke relative to the right-angle forming limiting mold (22), the stroke comprising a first state in which the front plate (3) is not pressed and is flush with the upper surface of the right-angle forming limiting mold (22), and a second state in which the front plate (3) is pressed and is lower than the upper surface of the right-angle forming limiting mold (22).
2. The stamping die according to claim 1, characterized in that: The second die assembly (2) further comprises a reinforcing rib punch (24), wherein the reinforcing rib punch (24) is arranged on the lower die seat (21), and an end surface of the reinforcing rib punch (24) away from the lower die seat (21) has a protrusion (241), and an end of the right-angle stamping die (12) away from the upper die seat (11) is recessed with an avoidance groove (121), and the avoidance groove (121) is arranged opposite to the protrusion (241).
3. The stamping die according to claim 2, characterized in that: The protrusion (241) is in a V-shaped structure.
4. The stamping die according to claim 2, characterized in that: The second mold assembly (2) further comprises a ejector plate (25), wherein the ejector plate (25) is arranged at one end of the shock-absorbing rubber component (23) away from the lower mold base (21), and the ejector plate (25) is located between the reinforcing rib punch (24) and the right-angle forming limiting mold (22).
5. The stamping die according to claim 4, characterized in that: The second mold assembly (2) further comprises a first padding block (26), wherein the first padding block (26) is arranged between the reinforcing rib punch (24) and the lower mold base (21), and the ejector plate (25) is stopped on the first padding block (26).
6. The stamping die according to claim 5, characterized in that: A first position-limiting step surface (261) is provided on one end surface of the first pad block (26) away from the lower die seat (21), and the inner side wall of the reinforcing rib punch (24) abuts against the first position-limiting step surface (261).
7. The stamping die according to claim 4, characterized in that: The second mold assembly (2) further comprises a second padding block (27), wherein the second padding block (27) is arranged between the right-angle forming limiting mold (22) and the lower mold base (21), and the ejector plate (25) is stopped on the second padding block (27).
8. The stamping die according to claim 7, characterized in that: A second limiting step surface (271) is provided on one end surface of the second raising block (27) away from the lower die seat (21), and the outer side wall of the right-angle forming limiting die (22) abuts against the second limiting step surface (271).
9. The stamping die according to claim 1, characterized in that: The second mold assembly (2) also includes positioning pins (28), and a plurality of positioning pins (28) are circumferentially spaced apart at one end of the right-angle forming limiting mold (22) away from the lower mold base (21), and the plurality of positioning pins (28) are arranged to form a positioning area, and the front plate (3) is located in the positioning area.
10. The stamping die according to any one of claims 1 to 9, characterized in that: The first mold assembly (1) further comprises a limiting sliding wall ring (13), wherein an annular portion (131) is provided at one end of the limiting sliding wall ring (13) away from the upper mold base (11), and the inner diameter of the annular portion (131) is not less than the outer diameter of the right-angle forming limiting mold (22).