Anti-jumping device and stamping die
Patent Information
- Application Number
- CN202522256262.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-10-24
AI Technical Summary
[0004]本实用新型提供了一种防跳片装置和冲压模具，以解决通片容易被凸模带起的技术问题
[0017]本实用新型提供了一种防跳片装置和冲压模具，防跳片装置在使用时可以固定在冲压模具的凹模的上表面上，当送料装置把待冲压的材料送到位后，凸模向下冲压材料，材料向下移动时与移动件的倾斜部接触，当材料对倾斜部的作用力大于弹簧的弹簧力时，移动件向凹模的模腔外移动，直至从材料上冲压形成的通片落入凹模的模腔中。通片落入凹模的模腔中之后，移动件在弹簧的弹簧力的作用下伸入凹模的模腔内并压住通片的边缘，凸模在上升时，即使通片挂在凸模上，由于移动件压住了通片的边缘，通片不会被凸模带起，避免了通片移位导致材料不能正常送到位或模具爆裂。
Smart Images
Figure CN224854904U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor technology, and in particular to an anti-skid device and a stamping die. Background Technology
[0002] When stamping the stator core of a motor using an automatic riveting die, a through piece needs to be stamped onto the upper surface of the stator core after each core is stamped to control its height. This through piece is the first piece of the next stator core; it can be riveted to the second piece above it, but not to the cores below it. Without this through piece, all the cores would be riveted together layer by layer.
[0003] When stamping to form a through sheet, the height between the through sheet and the upper surface of the die cavity is usually only the thickness of one sheet of material, typically 0.5mm-0.35mm. Because the through sheet cannot be riveted to the iron core inside the die cavity, the riveting holes on the through sheet can easily get caught on the punch during stamping, causing the through sheet to be easily lifted by the punch. If the through sheet protrudes from the die cavity, the material to be stamped will not be delivered properly, affecting product quality and potentially even causing the die to burst. Utility Model Content
[0004] This invention provides an anti-skid plate device and a stamping die to solve the technical problem that the plate is easily lifted by the punch.
[0005] To solve the above-mentioned technical problems, this utility model provides an anti-jumping device, including a base, a moving part and a spring; the base includes a first side surface, a second side surface and a bottom surface, and a groove is provided on the bottom surface of the base along a first direction, the first direction being the direction from the first side surface to the second side surface, and the groove penetrates through the first side surface and the second side surface;
[0006] The moving part includes an inclined part, a sliding part, and a limiting part connected in sequence; the angle between the side of the inclined part away from the base and the sliding part is an acute angle; the sliding part is placed in the groove and can reciprocate along the first direction; the inclined part is located on one side of the first side, and the limiting part is located on one side of the second side.
[0007] A first blind hole is provided on the base along the first direction. The opening of the first blind hole is located on the first side. The extension line of the first blind hole intersects with the inclined portion and the limiting portion. One end of the spring is installed in the first blind hole, and the other end extends toward the inclined portion near the side of the base.
[0008] Preferably, the inclined portion is provided with a second blind hole, the second blind hole and the first blind hole are arranged in parallel, and the other end of the spring is installed in the second blind hole.
[0009] Preferably, the axes of the second blind hole and the first blind hole are on the same straight line, and the diameters of the second blind hole and the first blind hole are equal.
[0010] Preferably, the base further includes a top surface, and the base is provided with mounting holes for fixing, the mounting holes penetrating the top surface and the bottom surface.
[0011] Preferably, the base is further provided with a positioning pin hole for fixing, the positioning pin hole penetrating the top surface and the bottom surface.
[0012] Preferably, the first side surface is an inclined surface, and the angle between the first side surface and the bottom surface is an acute angle.
[0013] Preferably, the first side and the inclined portion are arranged in parallel.
[0014] Preferably, the sliding part and the limiting part are vertically connected.
[0015] This utility model also provides a stamping die, including a punch, a die, and an anti-jump device as described above; the punch is movable up and down relative to the die; the base of the anti-jump device is fixed on the upper surface of the die, and the sliding part of the anti-jump device is located between the base and the die; when the inclined part of the anti-jump device is not subjected to an external force, the inclined part extends into the cavity of the die; when the inclined part is subjected to an external force, the inclined part retracts out of the cavity of the die.
[0016] Preferably, the stamping die includes a plurality of anti-jump devices, which are fixed at intervals on the upper surface of the die cavity.
[0017] This invention provides an anti-skid-out device and a stamping die. The anti-skid-out device is fixed to the upper surface of the die cavity of the stamping die. After the feeding device delivers the material to be stamped, the punch presses the material downwards. As the material moves downwards, it contacts the inclined portion of the moving part. When the force exerted by the material on the inclined portion exceeds the spring force, the moving part moves out of the die cavity until the through piece formed by stamping from the material falls into the die cavity. After the through piece falls into the die cavity, the moving part, under the spring force, extends into the die cavity and presses down on the edge of the through piece. When the punch rises, even if the through piece gets caught on the punch, because the moving part presses down on the edge of the through piece, the through piece will not be lifted by the punch, preventing the through piece from shifting and causing the material to fail to be delivered properly or the die to burst. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of an anti-jumping plate device provided in one embodiment of the present invention.
[0019] Figure 2 yes Figure 1 The diagram shows the structure of the anti-jumping device after it has been positioned with the locating pin and rotated at a certain angle.
[0020] Figure 3 yes Figure 2 A schematic diagram of the anti-jumping device after it has been rotated at a certain angle.
[0021] Figure 4 This is a cross-sectional schematic diagram of an anti-jumping device provided in an embodiment of the present invention.
[0022] Figure 5 This is a schematic diagram of the structure of a stamping die in use according to an embodiment of the present invention.
[0023] The attached figures are labeled as follows:
[0024] Base-1, Moving part-2, Spring-3, Punch-4, Die-5, Material-6, Through-piece-7, Upper die base-8, Lower die base-9;
[0025] First side surface-11, Second side surface-12, Bottom surface-13, First blind hole-14, Second blind hole-15, Top surface-16, Mounting hole-17, Locating pin hole-18, Locating pin-19;
[0026] Inclined part-21, sliding part-22, limiting part-23. Detailed Implementation
[0027] To make the objectives, advantages, and features of this utility model clearer, the following detailed description of the anti-skid device and stamping die proposed by this utility model is provided in conjunction with the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clearly illustrate the purpose of the embodiments of this utility model.
[0028] In the description of this utility model, the terms "first," "second," and other qualifiers are added for convenience of description and reference, and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with qualifiers such as "first" and "second" may explicitly or implicitly include one or more of that feature.
[0029] like Figures 1-4As shown, this embodiment provides an anti-skid device, including a base 1, a movable component 2, and a spring 3. The base 1 includes a first side surface 11, a second side surface 12, and a bottom surface 13. A groove is provided on the bottom surface 13 of the base 1 along a first direction, where the first direction is the direction from the first side surface 11 to the second side surface 12. The groove passes through the first side surface 11 and the second side surface 12. The movable component 2 includes an inclined portion 21, a sliding portion 22, and a limiting portion 23 connected in sequence. The angle between the inclined portion 21 (the side away from the base 1, i.e., the outer side surface) and the sliding portion 22 is acute. Angle; the sliding part 22 is placed in the groove and can reciprocate along the first direction; the inclined part 21 is located on one side of the first side 11, and the limiting part 23 is located on one side of the second side 12; a first blind hole 14 is provided on the base 1 along the first direction, the opening of the first blind hole 14 is provided on the first side 11, and the extension line of the first blind hole 14 intersects with the inclined part 21 and the limiting part 23; one end of the spring 3 is installed in the first blind hole 14, and the other end extends towards the inclined part 21 near the side of the base 1, i.e., the inner side.
[0030] Combination Figure 5 As shown, this embodiment provides an anti-jumping device that can be fixed to the upper surface of the die cavity 5 of a stamping die during use. When the feeding device delivers the material 6 to be stamped into position, the punch 4 punches the material 6 downwards. As the material 6 moves downwards, it contacts the inclined portion 21 of the moving part 2. When the force exerted by the material 6 on the inclined portion 21 is greater than the spring force of the spring 3, the moving part 2 moves out of the die cavity of the die cavity 5 until the through piece 7 formed by stamping from the material 6 falls into the die cavity of the die cavity 5. After the through piece 7 falls into the die cavity of the die cavity 5, the moving part 2 extends into the die cavity of the die cavity 5 under the action of the spring force of the spring 3 and presses down on the edge of the through piece 7. When the punch 4 rises, even if the through piece 7 is caught on the punch 4, because the moving part 2 presses down on the edge of the through piece 7, the through piece 7 will not be lifted by the punch 4, thus avoiding the through piece 7 shifting and causing the material 6 to fail to be delivered properly or the die to burst.
[0031] Preferred, such as Figure 2 and Figure 4 As shown, a second blind hole 15 is provided on the inclined portion 21. The second blind hole 15 is arranged parallel to the first blind hole 14, and the other end of the spring 3 is installed in the second blind hole 15. Installing the other end of the spring 3 in the second blind hole 15 can protect the other end of the spring 3 and prevent the inclined portion 21 from hitting the other end of the spring 3.
[0032] Preferred, such as Figure 2 and Figure 4As shown, the axes of the second blind hole 15 and the first blind hole 14 are on the same straight line, and the diameters of the second blind hole 15 and the first blind hole 14 are equal, which facilitates the processing to form the second blind hole 15 and the first blind hole 14.
[0033] Preferred, such as Figure 1 and Figure 3 As shown, the base 1 also includes a top surface 16, and the base 1 is provided with mounting holes 17 for fixing, the mounting holes 17 penetrating the top surface 16 and the bottom surface 13. There can be two mounting holes 17, which facilitate the installation and removal of the anti-jump device. In other embodiments, the anti-jump device can be fixed by welding or other methods.
[0034] Preferred, such as Figure 1 and Figure 3 As shown, the base 1 is also provided with a positioning pin hole 18 for fixing, the positioning pin hole 18 penetrating the top surface 16 and the bottom surface 13. The positioning pin hole 18 is used to install positioning pins 19, which can improve the installation accuracy and firmness of the anti-jump device. The number of positioning pins 19 can be two.
[0035] Preferred, such as Figure 1 , Figure 3 and Figure 4 As shown, the first side surface 11 is an inclined surface, and the included angle between the first side surface 11 and the bottom surface 13 is an acute angle. Setting the first side surface 11 as an inclined surface can increase the contact area between the first side surface 11 and the inclined part 21, and avoid excessive local force on the inclined part 21 and the first side surface 11 when they come into contact, which would lead to component wear.
[0036] Preferred, such as Figure 1 and Figure 4 As shown, the first side 11 and the inclined portion 21 are arranged in parallel, which can further increase the contact area between the first side 11 and the inclined portion 21.
[0037] Preferred, such as Figures 1-4 As shown, the sliding part 22 and the limiting part 23 are vertically connected, which facilitates the manufacture of the moving part 2.
[0038] like Figures 1-5As shown, based on the same technical concept as the aforementioned anti-jump device, this embodiment provides a stamping die, including a punch 4, a die 5, and the anti-jump device described above. The punch 4 is movable up and down relative to the die 5. The base 1 of the anti-jump device is fixed to the upper surface of the die 5, and the sliding part 22 of the anti-jump device is located between the base 1 and the die 5. When the inclined part 21 of the anti-jump device is not subjected to external force, the inclined part 21 extends into the cavity of the die 5; when the inclined part 21 is subjected to external force, the inclined part 21 retracts out of the cavity of the die 5. The punch 4 can be mounted on an upper die base 8, and the die 5 can be mounted on a lower die base 9.
[0039] This embodiment provides a stamping die including an anti-jump device. During use, the anti-jump device can be fixed to the upper surface of the die cavity 5. When the feeding device delivers the material 6 to be stamped into position, the punch 4 punches the material 6 downwards. As the material 6 moves downwards, it contacts the inclined portion 21 of the moving part 2. When the force exerted by the material 6 on the inclined portion 21 is greater than the spring force of the spring 3, the moving part 2 moves out of the die cavity 5 until the through piece 7 formed from the material 6 falls into the die cavity 5. After the through piece 7 falls into the die cavity 5, the moving part 2, under the action of the spring force of the spring 3, extends into the die cavity 5 and presses down on the edge of the through piece 7. When the punch 4 rises, even if the through piece 7 hangs on the punch 4, because the moving part 2 presses down on the edge of the through piece 7, the through piece 7 will not be lifted by the punch 4, thus preventing the through piece 7 from shifting and causing the material 6 to fail to be delivered properly or the die to burst.
[0040] Preferred, Reference Figure 5 As shown, the stamping die includes multiple anti-jump devices, which are fixed at intervals on the upper surface of the die cavity 5. By simultaneously pressing the edge of the through piece 7 with multiple anti-jump devices, the pressure on the through piece 7 can be increased, thereby preventing the through piece 7 from being lifted by the punch 4.
[0041] In summary, this utility model provides an anti-jumping device and a stamping die. The anti-jumping device can be fixed to the upper surface of the die cavity 5 of the stamping die. When the feeding device delivers the material 6 to be stamped into position, the punch 4 punches the material 6 downwards. As the material 6 moves downwards, it contacts the inclined portion 21 of the moving part 2. When the force exerted by the material 6 on the inclined portion 21 is greater than the spring force of the spring 3, the moving part 2 moves out of the die cavity of the die 5 until the through piece 7 formed from the material 6 falls into the die cavity of the die 5. After the through piece 7 falls into the die cavity of the die 5, the moving part 2, under the action of the spring force of the spring 3, extends into the die cavity of the die 5 and presses down on the edge of the through piece 7. When the punch 4 rises, even if the through piece 7 hangs on the punch 4, because the moving part 2 presses down on the edge of the through piece 7, the through piece 7 will not be lifted by the punch 4, thus preventing the through piece 7 from shifting and causing the material 6 to fail to be delivered properly or the die to burst.
[0042] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the present utility model.
Claims
1. An anti-skid device, characterized in that, The device includes a base, a movable component, and a spring. The base includes a first side surface, a second side surface, and a bottom surface. A groove is provided on the bottom surface of the base along a first direction, where the first direction is the direction from the first side surface to the second side surface. The groove passes through the first side surface and the second side surface. The moving part includes an inclined part, a sliding part, and a limiting part connected in sequence; the angle between the side of the inclined part away from the base and the sliding part is an acute angle; the sliding part is placed in the groove and can reciprocate along the first direction; the inclined part is located on one side of the first side, and the limiting part is located on one side of the second side. A first blind hole is provided on the base along the first direction. The opening of the first blind hole is located on the first side. The extension line of the first blind hole intersects with the inclined portion and the limiting portion. One end of the spring is installed in the first blind hole, and the other end extends toward the inclined portion near the side of the base.
2. The anti-skid device as described in claim 1, characterized in that, A second blind hole is provided on the inclined portion, and the second blind hole is arranged parallel to the first blind hole. The other end of the spring is installed in the second blind hole.
3. The anti-skid device as described in claim 2, characterized in that, The axes of the second blind hole and the first blind hole are on the same straight line, and the diameters of the second blind hole and the first blind hole are equal.
4. The anti-skid device as described in claim 1, characterized in that, The base also includes a top surface, on which mounting holes for fixing are provided, the mounting holes penetrating the top surface and the bottom surface.
5. The anti-skid device as described in claim 4, characterized in that, The base is also provided with positioning pin holes for fixing, and the positioning pin holes penetrate the top surface and the bottom surface.
6. The anti-skid device as described in claim 1, characterized in that, The first side surface is an inclined surface, and the angle between the first side surface and the bottom surface is an acute angle.
7. The anti-skid device as described in claim 6, characterized in that, The first side and the inclined portion are arranged parallel to each other.
8. The anti-skid device as described in claim 1, characterized in that, The sliding part and the limiting part are vertically connected.
9. A stamping die, characterized in that, The device includes a punch, a die, and an anti-jumping device as described in any one of claims 1-8; the punch is movable up and down relative to the die; the base of the anti-jumping device is fixed on the upper surface of the die, and the sliding part of the anti-jumping device is located between the base and the die; when the inclined part of the anti-jumping device is not subjected to an external force, the inclined part extends into the cavity of the die; when the inclined part is subjected to an external force, the inclined part retracts out of the cavity of the die.
10. A stamping die as described in claim 9, characterized in that, The stamping die includes a plurality of anti-jump devices, which are fixed at intervals on the upper surface of the die cavity.