CN212350084U - Part boss forming die - Google Patents
Part boss forming die Download PDFInfo
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- CN212350084U CN212350084U CN201922151603.2U CN201922151603U CN212350084U CN 212350084 U CN212350084 U CN 212350084U CN 201922151603 U CN201922151603 U CN 201922151603U CN 212350084 U CN212350084 U CN 212350084U
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Abstract
The utility model discloses a part boss forming die, which comprises an upper die assembly and a lower die assembly; the upper die assembly comprises an upper die base, a pressure plate, a blanking convex die, an upper inner forming convex die and an upper ejector, the lower end of a first upper force transmission rod is fixedly connected with the pressure plate, the pressure plate is installed at the bottom of the upper die base, the upper end of the blanking convex die is fixed with the bottom of the upper die base, the lower end of the blanking convex die penetrates through the pressure plate, the upper inner forming convex die is installed on the blanking convex die, the lower end of a second upper force transmission rod is fixedly connected with the upper ejector, and the upper ejector is slidably installed at the lower end of the upper inner forming convex die; the lower die assembly comprises a lower die base, a concave die plate, a counter pressure plate and a lower inner forming convex die, the concave die plate is fixedly arranged at the top of the lower die base, a groove is formed in the top of the concave die plate, the upper end of the first lower dowel bar is fixedly connected with the counter pressure plate, and the counter pressure plate is slidably arranged in the groove. The forming machine can complete the forming of the bosses on the upper end face and the lower end face of a part by one-step punching load, the relative precision between the bosses is stable, and the product percent of pass is high.
Description
Technical Field
The utility model relates to the technical field of mold, especially, relate to a part boss forming die.
Background
The gear disc seat is one of important parts in the automobile seat angle adjuster and is in a disc shape, one end face of the gear disc seat is used for being fixed with a handle or an automatic switch lock mechanism, the other end face of the gear disc seat is used for being matched with a gear disc, and the gear disc is used for being fixed with an automobile seat backrest, so that the gear disc and the gear disc seat are locked or unlocked to fix the automobile seat backrest or adjust the inclination angle of the automobile seat backrest. In order to meet the assembly requirements of the fluted disc seat, the two end surfaces of the fluted disc seat are provided with a plurality of layers of bosses.
At present, a common stamping step-by-step punching and loading process is generally adopted in a traditional boss forming mode of the fluted disc seat, specifically, a multi-step continuous die is used for punch forming of the boss of the fluted disc seat, the bosses are distributed on different stations for forming in sequence, the problem that the precision of the relative position between the bosses is unstable is solved, the assembly precision is influenced, and the qualified rate of the produced fluted disc seat is low.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model aims to provide a part boss forming die, its shaping that can one step dashes the boss of carrying the both ends face about accomplishing the part, and relative precision between the boss is stable, and the product percent of pass is higher.
The purpose of the utility model is realized by adopting the following technical scheme:
a part boss forming die comprises an upper die assembly and a lower die assembly which are sequentially arranged from top to bottom, wherein the lower die assembly can move up and down relative to the upper die assembly;
the upper die assembly comprises an upper die base, a pressure plate, a blanking male die, an upper inner forming male die, an upper ejector, a first upper force transmission rod and a second upper force transmission rod, wherein the first upper force transmission rod and the second upper force transmission rod are movably arranged on the upper die base;
the lower die component comprises a lower die base, a concave die plate, a counter plate, a lower inner forming male die, a first lower dowel bar and a second lower dowel bar, wherein the first lower dowel bar and the second lower dowel bar are movably arranged on the lower die base, the concave die plate is fixedly arranged at the top of the lower die base, a groove is formed in the top of the concave die plate, the upper end of the first lower dowel bar is fixedly connected with the counter plate, the counter plate is slidably arranged in the groove, the counter plate is matched with the blanking male die and forms an outer die cavity in the groove during die assembly, the second lower dowel bar is fixedly connected with the lower inner forming male die, the lower inner forming male die is slidably arranged in the counter plate, an annular convex part is arranged in the middle of the top surface of the lower inner forming male die, and during die assembly, the outer edge of the lower inner forming male die is matched with the upper inner forming male die and forms a first inner die cavity in the groove, the annular bulge and the upper ejector form a second inner cavity in the groove, and the outer cavity, the first inner cavity and the second inner cavity are sequentially communicated and enclosed to form a molding cavity.
Further, when the die is closed, the lower end of the blanking male die protrudes out of the bottom surface of the material pressing plate, the lower end of the upper inner forming male die protrudes out of the blanking male die, and the lower end of the upper inner forming male die protrudes out of the lower end of the upper part ejecting device; the upper end of the counter pressure plate protrudes out of the upper end of the lower inner forming male die.
Furthermore, central lines of the blanking male die, the upper inner forming male die, the upper ejector, the counter pressure plate and the lower inner forming male die are overlapped.
Furthermore, the material pressing plate is provided with a first guide hole penetrating through the upper end and the lower end of the material pressing plate, and the blanking male die penetrates through the first guide hole.
Furthermore, the blanking male die is provided with a second guide hole penetrating through the upper end and the lower end of the blanking male die, and the upper inner forming male die is in sliding fit with the second guide hole.
Furthermore, a third guide hole is formed in the upper inner forming male die, and the upper ejector is in sliding fit with the third guide hole.
Further, the third guide hole is a blind hole.
Furthermore, the counter pressure plate is provided with a fourth guide hole penetrating through the upper end and the lower end of the counter pressure plate, and the lower inner forming male die is in sliding fit with the fourth guide hole.
Furthermore, an annular flange formed by extending outwards is arranged at the upper end of the blanking convex die, an avoiding space is arranged at the top of the material pressing plate, and the avoiding space is used for containing the annular flange.
Further, an upper backing plate is fixedly arranged at the bottom of the upper die holder and is positioned between the upper die holder and the material pressing plate; and a lower cushion plate is also arranged between the lower die base and the concave die plate.
Furthermore, the part boss forming die is used for forming a boss of the gear disc seat for the automobile seat angle adjuster.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the part boss forming die can realize the forming, blanking and demoulding steps of inner layer bosses of the upper end face and the lower end face of a part on a vertical station, improves the processing efficiency, improves the position precision between the part bosses and the surface precision of the part, greatly improves the part qualification rate and reduces the processing cost when being more convenient to assemble.
Drawings
Fig. 1 is the structural schematic diagram of the part boss forming die of the utility model.
In the figure: 1. an upper die assembly; 11. an upper die holder; 12. a material pressing plate; 13. a first upper force transfer lever; 14. blanking male dies; 15. an upper inner forming male die; 16. an upper ejector; 17. a second upper force transmission rod; 18. an upper base plate; 2. a lower die assembly; 21. a lower die holder; 22. a cavity plate; 23. a counter-pressure plate; 24. a first lower dowel bar; 25. a lower inner forming male die; 26. a second lower dowel bar; 27. a lower base plate; 3. raw materials.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "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 simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1, a part boss forming mold according to a preferred embodiment of the present invention is shown, and the part boss forming mold is preferably used for boss forming of a gear seat for an automobile seat angle adjuster, and of course, may also be used for boss forming of a part of an adapter. This part boss forming die is including last mould subassembly 1 and the lower mould subassembly 2 that from top to bottom sets gradually, and lower mould subassembly 2 can reciprocate for last mould subassembly 1 to form the blowing space that is used for placing raw materials 3 between last mould subassembly 1 and lower mould subassembly 2.
The upper die assembly 1 comprises an upper die base 11, a pressure plate 12, a blanking convex die 14, an upper inner forming convex die 15, an upper ejector 16, a first upper force transmission rod 13 and a second upper force transmission rod 17, wherein the first upper force transmission rod 13 and the second upper force transmission rod 17 are movably mounted on the upper die base 11, the lower end of the first upper force transmission rod 13 is fixedly connected with the pressure plate 12 and used for transmitting the pressure plate 12, the pressure plate 12 is located at the bottom of the upper die base 11 and can move up and down relative to the upper die base 11, the upper end of the blanking convex die 14 is fixed with the bottom of the upper die base 11, the lower end of the blanking convex die 14 penetrates through the pressure plate 12, the upper inner forming convex die 15 is slidably mounted on the blanking convex die 14, the lower end of the second upper force transmission rod 17 is fixedly connected with the upper ejector 16 and used for transmitting the upper ejector 16 to move up and down, and. The first upper force transmission rod 13 can be used for conveniently connecting the pressure plate 12 with an external power source, so that the pressure plate 12 can be transmitted or stable supporting force can be provided for the pressure plate 12, and similarly, the second upper force transmission rod 17 can be used for conveniently connecting the blanking male die 14 with the external power source, so that the blanking male die 14 can be transmitted or stable supporting force can be provided for the blanking male die 14.
The lower die component 2 comprises a lower die base 21, a concave die plate 22, a counter-pressure plate 23, a lower inner forming convex die 25, a first lower dowel bar 24 and a second lower dowel bar 26 which are movably arranged on the lower die base 21, the concave die plate 22 can be fixedly arranged at the top of the lower die base 21 through screws, a groove is formed in the top of the concave die plate 22, the counter-pressure plate 23 is arranged opposite to the blanking convex die 14, the counter-pressure plate 23 is slidably arranged in the groove, the upper end of the first lower dowel bar 24 is fixedly connected with the counter-pressure plate 23 to be capable of driving the counter-pressure plate 23, the counter-pressure plate 23 is matched with the blanking convex die 14 to form an outer die cavity (namely an outer ring die cavity of a part) in the groove when die assembly is carried out, the lower inner forming convex die 25 is slidably arranged in the counter-pressure plate 23, the second lower dowel bar 26 is fixedly connected with the lower inner forming convex die 25 to be capable of driving the lower convex die, when the die is closed, the outer edge of the lower inner forming male die 25 and the upper inner forming male die 15 are in extrusion press fit and form a first inner cavity (namely a first inner ring cavity for forming a part) in the groove, the annular bulge and the upper ejector 16 are in extrusion press fit and form a second inner cavity (namely a second inner ring cavity for forming the part) in the groove, the outer cavity, the first inner cavity and the second inner cavity are sequentially communicated and enclose to form a forming cavity for forming the part, and when the die is closed, the forming cavity is positioned in the groove.
The utility model discloses a part boss forming die's mounting means as follows: the upper die base 11 is fixedly installed on an external machine tool, the lower die base 21 is fixedly installed on an output end of a first telescopic driving piece of the external machine tool so as to drive the lower die assembly 2 to move up and down relative to the upper die assembly 1, and the second telescopic driving piece, the third telescopic driving piece, the fourth telescopic driving piece and the fifth telescopic driving piece are respectively connected with a first upper force transmission rod 13, a second upper force transmission rod 17, a first lower force transmission rod 24 and a second lower force transmission rod 26, wherein the second telescopic driving assembly, the third telescopic driving assembly, the fourth telescopic driving assembly and the fifth telescopic driving assembly can be configured on the external machine tool or directly configured on the part boss forming die. In a preferred embodiment, the second telescopic driving member, the third telescopic driving member, the fourth telescopic driving member and the fifth telescopic driving member may be hydraulic cylinders, so that the hydraulic cylinders can continuously output stable driving force to improve the surface accuracy of the part.
The utility model discloses a part boss forming die's theory of operation as follows:
the external machine tool conveys the raw material 3 to a discharging gap between the upper die component 1 and the lower die component 2, when the die is closed, the lower die component 2 integrally moves upwards, the pressure plate 12 moves downwards, the raw material 3 is clamped under the matching between the pressure plate 12 and the concave die plate 22, so that the raw material 3 is positioned, then, the lower die component 2 integrally continues to move upwards, the pressure plate 12 and the blanking convex die 14 also move upwards, in the die closing process, the extrusion matching between the outer edge of the lower inner forming convex die 25 and the upper inner forming convex die 15 and the extrusion matching between the annular convex part and the upper ejector 16 are utilized to realize the forming of the inner boss of the part, and the extrusion matching between the blanking convex die 14 and the back pressure plate 23 is utilized to realize the breaking of the part, so that the forming of the inner bosses on the upper end surface and the lower end surface of the part and the breaking of the part (namely, the part is cut off from the raw material 3) can be synchronously completed after the die is, then, the lower die assembly 2 moves downwards integrally, meanwhile, the upper ejector 16 moves downwards to eject the part out of the upper inner forming male die 15, after the lower die assembly 2 moves to a certain distance, the counter pressure plate 23 and the lower inner forming male die 25 move upwards simultaneously to push the part to be separated from the groove, and then, the counter pressure plate 23 continues to move upwards to eject the part out of the lower inner forming male die 25, so that the part is demolded.
To sum up, this part boss forming die can realize the shaping of the inlayer boss of both ends face about the part on a perpendicular station, blanking and drawing of patterns step, improves machining efficiency, improves the position precision between the part boss simultaneously, when more convenient the assembly, has improved the part qualification rate greatly, reduces the processing cost. In addition, the blanking convex die 14, the counter pressure plate 23 and the lower inner forming convex die 25 are in transmission connection through a rigid dowel bar, so that the blanking convex die 14, the counter pressure plate 23 and the lower inner forming convex die 25 can apply stable rigid thrust to the part under the action of an external power source, and the surface precision of the part is improved.
As a preferred embodiment, during mold closing, the lower end of the blanking male die 14 protrudes out of the bottom surface of the pressure plate 12, the lower end of the upper inner forming male die 15 protrudes out of the blanking male die 14, and the lower end of the upper inner forming male die 15 protrudes out of the lower end of the upper ejector 16; the upper end of the counter plate 23 protrudes above the upper end of the lower inner molding punch 25 to enable the molding of a part of a desired shape. Of course, the relative relationship between the parts can be flexibly adjusted according to the height and the relative position of the part boss.
In a preferred embodiment, the center lines of the blanking convex die 14, the upper inner forming convex die 15, the upper ejector 16, the counter pressure plate 23 and the lower inner forming convex die 25 are overlapped, so that the stress of the part is more uniform, and the surface precision of the part is improved.
Specifically, the material pressing plate 12 is provided with a first guide hole penetrating through the upper end and the lower end of the material pressing plate, and the blanking male die 14 penetrates through the first guide hole; the blanking male die 14 is provided with a second guide hole penetrating through the upper end and the lower end of the blanking male die, and the upper inner forming male die 15 is in sliding fit with the second guide hole; the upper inner forming male die 15 is provided with a third guide hole, the upper ejector 16 is in sliding fit with the third guide hole, and the third guide hole is preferably a blind hole so as to reduce the processing difficulty of the upper inner forming male die 15; the counter pressure plate 23 is provided with a fourth guide hole penetrating through the upper end and the lower end of the counter pressure plate, and the lower inner forming punch 25 is in sliding fit with the fourth guide hole.
In a preferred embodiment, an annular flange extending outwards is arranged at the upper end of the blanking male die 14, and an avoiding space is arranged at the top of the pressure plate 12 and is used for accommodating the annular flange. The annular flange is arranged at the upper end of the blanking convex die 14, so that the surface area of the upper end of the blanking convex die 14 is increased, and the effect of enhancing the strength of the blanking convex die 14 is achieved.
Further, an upper backing plate 18 is fixedly arranged at the bottom of the upper die base 11, and the upper backing plate 18 is positioned between the upper die base 11 and the material pressing plate 12; a lower backing plate 27 is further arranged between the lower die holder 21 and the cavity plate 22, and the arrangement of the upper backing plate 18 and the lower backing plate 27 can play a role of increasing the upper die holder 11 and the lower die holder 21. It will be appreciated that the hardness of the upper shim plate 18 is greater than or equal to that of the upper die base 11, the hardness of the lower shim plate 27 is greater than or equal to that of the lower die base 21, the hardness of the upper shim plate 18, the hardness of the lower shim plate 27, the hardness of the blanking punch 14, the hardness of the upper inner forming punch 15, the hardness of the upper ejector 16, the hardness of the counter-pressure plate 23, and the hardness of the lower inner forming punch 25 are equal, and the hardness of the upper die base 11 and the hardness of the lower die base 21 are equal.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. A part boss forming die is characterized by comprising an upper die assembly and a lower die assembly which are sequentially arranged from top to bottom;
the upper die assembly comprises an upper die base, a pressure plate, a blanking convex die, an upper inner forming convex die, an upper ejector, a first upper force transmission rod and a second upper force transmission rod, wherein the first upper force transmission rod and the second upper force transmission rod are movably arranged on the upper die base;
the lower die component comprises a lower die holder, a concave die plate, a counter pressure plate, a lower inner forming male die, a first lower dowel bar and a second lower dowel bar, wherein the first lower dowel bar and the second lower dowel bar are movably arranged on the lower die holder, the concave die plate is fixedly arranged at the top of the lower die holder, a groove is formed in the top of the concave die plate, the counter pressure plate is slidably arranged in the groove, the upper end of the first lower dowel bar is fixedly connected with the counter pressure plate, the lower inner forming male die is slidably arranged in the counter pressure plate, the second lower dowel bar is fixedly connected with the lower inner forming male die, an annular bulge part is arranged in the middle of the top surface of the lower inner forming male die, the counter pressure plate is in extrusion fit with the blanking male die during die assembly, the outer edge of the lower inner forming male die is in extrusion fit with the upper inner forming male die, and the annular bulge part is in extrusion fit with the.
2. The part boss forming die as claimed in claim 1, wherein, during die assembly, the lower end of the blanking male die protrudes out of the bottom surface of the pressure plate, the lower end of the upper inner forming male die protrudes out of the blanking male die, and the lower end of the upper inner forming male die protrudes out of the lower end of the upper part ejector; the upper end of the counter pressure plate protrudes out of the upper end of the lower inner forming male die.
3. The part boss forming die as claimed in claim 1, wherein center lines of the blanking male die, the upper inner forming male die, the upper ejector, the counter pressing plate and the lower inner forming male die are coincident.
4. The part boss forming die as claimed in claim 1, wherein the blank holder has a first guide hole formed therethrough, and the blanking punch passes through the first guide hole.
5. The part boss forming die as claimed in claim 1, wherein the blanking male die is provided with a second guide hole penetrating through upper and lower ends thereof, and the upper inner forming male die is slidably engaged with the second guide hole.
6. The part boss forming die as claimed in claim 1, wherein the upper inner forming punch is provided with a third guide hole, and the upper ejector is slidably fitted with the third guide hole.
7. The part boss forming die as claimed in claim 1, wherein the counter plate is provided with a fourth guide hole penetrating through upper and lower ends thereof, and the lower inner forming punch is slidably fitted into the fourth guide hole.
8. The part boss forming die as claimed in claim 1, wherein an annular flange extending outwards is provided at an upper end of the blanking male die, and an avoiding space is provided at a top of the pressing plate, and the avoiding space is used for accommodating the annular flange.
9. The part boss forming die as claimed in claim 1, wherein an upper backing plate is further fixedly disposed at the bottom of the upper die base, and the upper backing plate is located between the upper die base and the pressure plate; and a lower cushion plate is also arranged between the lower die base and the concave die plate.
10. The part boss forming die as claimed in claim 1, wherein the part boss forming die is used for forming a boss of a gear disc seat for an automobile seat angle adjuster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922151603.2U CN212350084U (en) | 2019-12-04 | 2019-12-04 | Part boss forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922151603.2U CN212350084U (en) | 2019-12-04 | 2019-12-04 | Part boss forming die |
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| Publication Number | Publication Date |
|---|---|
| CN212350084U true CN212350084U (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922151603.2U Active CN212350084U (en) | 2019-12-04 | 2019-12-04 | Part boss forming die |
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| CN (1) | CN212350084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111185527A (en) * | 2019-12-04 | 2020-05-22 | 广州市华冠精冲零件有限公司 | Part boss forming die |
-
2019
- 2019-12-04 CN CN201922151603.2U patent/CN212350084U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111185527A (en) * | 2019-12-04 | 2020-05-22 | 广州市华冠精冲零件有限公司 | Part boss forming die |
| CN111185527B (en) * | 2019-12-04 | 2024-07-02 | 广州市华冠精冲零件有限公司 | Part boss forming die |
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