CN210614835U - Fine punching die for brake lever - Google Patents
Fine punching die for brake lever Download PDFInfo
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- CN210614835U CN210614835U CN201921563101.4U CN201921563101U CN210614835U CN 210614835 U CN210614835 U CN 210614835U CN 201921563101 U CN201921563101 U CN 201921563101U CN 210614835 U CN210614835 U CN 210614835U
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- 238000004080 punching Methods 0.000 title description 9
- 239000000463 material Substances 0.000 claims description 17
- 244000309464 bull Species 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000009987 spinning Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a system bull stick fine blanking mould, it includes: the upper die assembly comprises an upper die plate, an upper base plate I, an upper base plate II, an upper base plate III and a gear ring plate which are arranged from top to bottom, wherein the upper base plate II is connected with a punch-die, an ejector rod is arranged in the punch-die, the plane size of the upper base plate I is larger than that of the upper base plate II, and a punch-die gasket matched with the top surface of the punch-die is arranged at the top of the punch-die; the lower die assembly comprises a lower die plate, a lower cushion plate I, a lower cushion plate II and a concave die plate which are arranged from bottom to top, wherein a concave die insert is arranged in the concave die plate, a piece ejecting device is arranged in the concave die insert, at least one punch is arranged in the piece ejecting device, the number and the shape of the punches correspond to those of inner holes of the turning rod respectively, and a concave die insert gasket matched with the bottom surface shape of the concave die insert is arranged at the bottom of the concave die insert; the punch and the die are arranged corresponding to the ejector, and the punch is arranged corresponding to the ejector rod. The one-time fine blanking forming meets the technical requirements of the rotating rod manufacturing, the quality is stable, and the cost is low.
Description
Technical Field
The utility model belongs to the mould field relates to a fine blanking mould, in particular to system bull stick fine blanking mould.
Background
The turning rod is a key part of an automobile door lock, the product quality requirement is high, the section bright band is more than 90%, the material thickness is 15% of the collapsed angle, the flatness needs to reach 0.1mm, and the outline requirement is within 0.1 mm. The parts of the turning rod also comprise holes with different sizes and numbers, which are mainly divided into two types, namely small round holes and round holes. If the common stamping forming is adopted, the section bright belt and the profile degree are difficult to achieve, the flatness cannot be guaranteed, procedures such as correction and leveling need to be added, the efficiency is low, and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a system bull stick essence mould can go out the system bull stick by the essence, and the mould quality is more excellent.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a system bull stick fine blanking mould, it includes:
the upper die assembly comprises an upper die plate, an upper base plate I, an upper base plate II, an upper base plate III and a ring gear plate, wherein the upper die plate, the upper base plate I, the upper base plate II, the upper base plate III and the ring gear plate are arranged from top to bottom;
the lower die assembly comprises a lower die plate, a lower backing plate I, a lower backing plate II and a concave die plate which are arranged from bottom to top, wherein a concave die insert is arranged in the concave die plate, a piece ejecting device is arranged in the concave die insert, at least one punch is arranged in the piece ejecting device, the number and the shape of the punches correspond to the number and the shape of inner holes of the turning rod respectively, and a concave die insert gasket matched with the bottom surface shape of the concave die insert is arranged at the bottom of the concave die insert;
the punch and die are arranged corresponding to the ejector, the punch is arranged corresponding to the ejector rod, and the contour of the punch and die and the contour of the inner hole of the die insert are matched with the contour of the outer shape of the pawl.
Optionally, the male and female die pads and/or the female die insert pad are detachably disposed.
Optionally, the material of the punch-die gasket is different from that of the punch-die.
Optionally, the material of the cavity insert gasket is different from that of the cavity insert.
Optionally, the thickness of the punch and die gasket is 9 mm-11 mm.
Optionally, the thickness of the cavity insert gasket is 4 mm-6 mm.
Optionally, the upper die assembly and the lower die assembly are guided by a guide rod and a guide sleeve which are matched with each other.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model discloses a system bull stick fine blanking mould, because punch-die appearance profile and die mold insert hole profile respectively with the appearance profile phase-match of system bull stick, consequently punch-die can be punched out the system bull stick outline. The ejector in the lower die assembly is used for providing reverse acting force and ejecting the punched pawl upwards after blanking, so that the blanking quality is improved. The punch is matched with the ejector rod to punch an inner hole in the rotary rod, the punch is used for punching, and the ejector rod is used for providing a certain reverse acting force and ejecting punching waste after punching is finished. The method of fine blanking is adopted, the technical requirements of the rotating rod are met by one-time forming, the quality is stable, and the cost is low.
Because the plane size of upper padding plate I is greater than the plane size of upper padding plate II again, consider that upper padding plate I is closer to the power supply, such setting can improve the life of upper padding plate I to improve mould quality.
The punch-die gasket at the top of the punch-die and the die insert gasket at the bottom of the die insert enable the upper and lower positions of the punch-die or the die insert to be finely adjusted (by customizing the punch-die gasket and the die insert gasket with corresponding thicknesses), so that the die is better in quality and easier to maintain.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic view of a pawl;
fig. 2 is a schematic structural view of a fine blanking die for a pawl according to a preferred embodiment of the present invention;
FIG. 3 is a schematic view of a punch and die shim configuration at the top of the punch and die;
FIG. 4 is a schematic view of a shim structure of a cavity insert at the bottom of the cavity insert;
wherein the reference numerals are as follows:
1. mounting a template;
2. an upper base plate I;
3. an upper base plate II;
4. an upper liner plate III;
5. a male die and a female die gasket;
6. a male die and a female die;
7. a ring gear plate;
8. a piece ejector;
9. a concave die insert;
10. a concave die insert gasket;
11. a cavity plate;
12. a lower base plate II;
13. a lower base plate I;
14. a punch;
15. a guide bar;
16. a lower template;
17. a lifter bar;
18. a guide sleeve;
19. an upper die assembly;
20. and a lower die assembly.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
As shown in figure 1, the outline of the turning rod is irregular and is internally provided with an inner hole. The product quality requirement is high, the section bright band is more than 90%, the collapsed angle is less than 15% of the material thickness, the flatness needs to reach 0.1mm, and the outline degree is required to be within 0.1 mm.
The spinning rod fine blanking die shown in figure 2 is used for fine blanking to manufacture the spinning rod meeting the quality requirement.
The pawl fine blanking die includes mating upper and lower die assemblies 19 and 20. The upper die assembly 19 includes an upper die plate 1, an upper pad i 2, an upper pad ii 3, an upper pad iii 4, and a ring gear plate 7, which are arranged substantially from top to bottom.
Wherein, upper padding plate I2 and upper padding plate II 3 set up in cope match-plate pattern 1. The plane size of upper padding plate I2 is greater than the plane size of upper padding plate II 3, because upper padding plate I2 is more close to the power supply, so such setting is favorable to improving the life of upper padding plate I2 for whole mould is more durable, economy.
The lower surface of the ring gear plate 7 is provided with linearly extending ribs (not shown) which are correspondingly pressed on the outer periphery of the workpiece adjacent to the outer contour of the pawl to limit the workpiece from moving transversely during blanking.
And the upper base plate II 3 is connected with a punch-die 6, and the outline of the working surface at the lower end of the punch-die 6 is matched with the outline of the pawl and used for punching the outline of the pawl downwards.
The top of the punch and die 6 is also provided with a punch and die gasket 5, and the shape of the punch and die gasket 5 is matched with the shape of the top surface of the punch and die 6, as shown in fig. 3. The male die and female die gaskets 5 are arranged in a detachable mode so as to be convenient to replace. The thickness of the punch-die shim 5 is 10.2 mm. In other embodiments, the thickness of the punch and die pad 5 may be any value within a range of 9mm to 11 mm. The male and female die gaskets 5 mainly have the following functions: the cost of the die is reduced, and the up-and-down position of the punch-die 6 is adjusted. Because the convex-concave die 6 is made of ASSAB88, the convex-concave die gasket 5 can be made of a material with lower cost such as Cr12MoV, and a part of the space of the convex-concave die 6 is replaced by the convex-concave die gasket 5, so that the die cost is reduced. Because the punch-die 6 can be abraded on the working surface (lower surface) after working for a period of time, the upper and lower positions of the punch-die 6 can be adjusted by changing the punch-die gasket 5 with larger thickness, thereby being more beneficial to die repair.
In this example, ASSAB88 was used as the material for the punch and die 6, and Cr12MoV was used as the material for the punch and die shim 5, but the material is not limited thereto. In other embodiments, the punch-die 6 and the punch-die gasket 5 may also be made of other conventional materials in the field, but if the material of the punch-die 6 is different from that of the punch-die gasket 5, the cost is poor, so that the cost of the mold can be saved.
The lower die assembly 20 comprises a lower die plate 16, a lower backing plate I13, a lower backing plate II 12 and a cavity plate 11 which are arranged from bottom to top approximately.
The lower cushion plate I13 and the lower cushion plate II 12 are arranged in the lower template 16. The cavity plate 11 is disposed above the lower plate 16.
A concave die insert 9 is arranged in the concave die plate 11, and a piece ejector 8 is arranged in the concave die insert 9.
The punch-die 6 in the upper die assembly 19 moves towards the inner hole of the female die insert 9, the profiles of the inner holes of the punch-die 6 and the female die insert 9 are matched with the profile of the pawl, and the outer profile of the pawl is punched by matching the punch-die 6 and the female die insert 9.
The ejector 8 is also positioned in the inner hole of the die insert 9, is arranged corresponding to the punch and die 6 and is used for providing certain reverse acting force, and when the punch and die 6 punches the burr surface (upper surface) of the workpiece downwards, the ejector 8 is abutted against the corner collapse surface (lower surface) of the workpiece so as to improve the punching quality. And when the blanking is finished, the ejector 8 moves upwards to eject the pawl.
In the punch-die 6 of the upper die assembly 19, an ejector rod 17 is further provided, and the ejector rod 17 is arranged corresponding to the punch 14. The ejector pin 17 provides a certain reverse force when the punch 14 punches the inner hole of the making rod upward, and moves downward after the punching of the punch 14 is completed to eject the blanking scrap.
The bottom of the concave die insert 9 is provided with a concave die insert pad 10, and the shape of the concave die insert pad 10 is matched with that of the bottom surface of the concave die insert 9, as shown in fig. 4. The die insert pad 10 is detachable for convenient replacement. The material of the die insert gasket 10 is Cr12MoV, and the thickness is 5 mm. The concave mold insert 9 is made of ASSAB88 material. In other embodiments, the cavity insert shim 10 may be made of other materials that are conventional in the art, and the thickness may be any value within 4mm to 6 mm. If the material of the concave die insert gasket 10 is different from that of the concave die insert 9, the cost is poor, and the cost of the die can be saved. The function of the female die insert gasket 10 is similar to that of the male and female die gasket 5, and mainly reduces the cost of the die and adjusts the upper and lower positions of the female die insert 9.
The upper die assembly 19 and the lower die assembly 20 are guided by the guide rod 15 and the guide sleeve 18 which are matched with each other.
The utility model discloses a finish blanking takes shape and makes the bull stick, and section bright band reaches more than 90%, and the corner collapse is less than the thick 15% of material and the plane degree reaches 0.1mm, and within appearance profile tolerance requirement 0.1mm, the follow-up process such as correction flattening that need not to increase, the product once takes shape and reaches technical requirement, stable in quality, and is with low costs.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (6)
1. A kind of making the fine blanking die of the rotary beam, characterized by that, it includes:
the upper die assembly (19) comprises an upper die plate (1), an upper base plate I (2), an upper base plate II (3), an upper base plate III (4) and a gear ring plate (7), wherein the upper die plate I (2) and the upper base plate II (3) are arranged from top to bottom, the upper base plate I (2) and the upper base plate II (3) are arranged in the upper die plate (1), a punch-die (6) is connected onto the upper base plate II (3), an ejector rod (17) is arranged in the punch-die (6), the plane size of the upper base plate I (2) is larger than that of the upper base plate II (3), and a punch-die gasket (5) matched with the top surface of the punch-die (6) in shape is arranged at the top of the punch-die;
the lower die assembly (20) comprises a lower die plate (16), a lower backing plate I (13), a lower backing plate II (12) and a concave die plate (11) which are arranged from bottom to top, a concave die insert (9) is arranged in the concave die plate (11), a piece ejecting device (8) is arranged in the concave die insert (9), at least one punch head (14) is arranged in the piece ejecting device (8), the number and the shape of the punch heads (14) correspond to the number and the shape of inner holes of the pawl respectively, and a concave die insert gasket (10) matched with the bottom shape of the concave die insert (9) is arranged at the bottom of the concave die insert (9);
the punch-die structure is characterized in that the punch-die (6) and the ejector (8) are arranged correspondingly, the punch (14) and the ejector rod (17) are arranged correspondingly, and the contour of the punch-die (6) and the contour of the inner hole of the die insert (9) are matched with the contour of the outer shape of the turning rod.
2. The pawl fine blanking die of claim 1, wherein: the male and female die gaskets (5) and/or the female die insert gasket (10) are detachably arranged.
3. The pawl fine blanking die of claim 1, wherein: the material of the convex-concave die gasket (5) is different from that of the convex-concave die (6).
4. The pawl fine blanking die of claim 1, wherein: the female die insert gasket (10) and the female die insert (9) are made of different materials.
5. The pawl fine blanking die of claim 1, wherein: the thickness of the male and female die gaskets (5) is 9 mm-11 mm.
6. The pawl fine blanking die of claim 1, wherein: the thickness of the concave die insert gasket (10) is 4 mm-6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921563101.4U CN210614835U (en) | 2019-09-19 | 2019-09-19 | Fine punching die for brake lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921563101.4U CN210614835U (en) | 2019-09-19 | 2019-09-19 | Fine punching die for brake lever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210614835U true CN210614835U (en) | 2020-05-26 |
Family
ID=70742859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921563101.4U Active CN210614835U (en) | 2019-09-19 | 2019-09-19 | Fine punching die for brake lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210614835U (en) |
-
2019
- 2019-09-19 CN CN201921563101.4U patent/CN210614835U/en active Active
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| GR01 | Patent grant |