CN218963813U - Drawing rebound-proof die for arc-shaped parts of outer plates of left and right rear wheel covers - Google Patents
Drawing rebound-proof die for arc-shaped parts of outer plates of left and right rear wheel covers Download PDFInfo
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- CN218963813U CN218963813U CN202223412966.5U CN202223412966U CN218963813U CN 218963813 U CN218963813 U CN 218963813U CN 202223412966 U CN202223412966 U CN 202223412966U CN 218963813 U CN218963813 U CN 218963813U
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Abstract
The middle pressing plate is arranged on a lower die holder of a lower film assembly, a die core sleeve hole matched and sleeved on a lower die core is arranged in the middle of the middle pressing plate, the lower die core extends out of the die core sleeve hole, a gas spring is arranged on the bottom surface of the middle pressing plate, a workpiece is placed on the lower die core of an extending part, when an upper die core in an upper die holder moves downwards to carry out stamping and drawing delay on the workpiece, the gas spring is compressed downwards by the middle pressing plate, and the impact force of part of the upper die core is buffered, so that the workpiece is slowly deformed to finish drawing, and therefore, the phenomenon of rebound can be effectively avoided when the left and right rear wheel cover outer plates are synchronously drawn, the drawing effect is good, and the rejection rate of products is lower; and be equipped with guiding mechanism between die holder and the intermediate pressing plate, be equipped with guiding mechanism between upper die holder and the intermediate pressing plate, dual guiding mechanism very big improvement the compound die precision of this mould, guaranteed product quality.
Description
Technical Field
The utility model relates to the field of automobile molds, in particular to a drawing rebound-preventing mold for an arc-shaped part of an outer plate of a left rear wheel cover and a right rear wheel cover.
Background
The automobile rear wheel cover outer plate is positioned at the automobile body rear wheel cover part and used for the distance comparison between the automobile body and an external object and the muddy water prevention effect of a driver in the driving process, and the automobile left and right rear wheel cover outer plates are an important part of a side wall assembly and are indispensable parts on the side wall of the automobile body. The existing automobile rear wheel cover outer plate is mainly formed by stamping a stamping die on a production line, and the automobile rear wheel cover outer plate comprises a left piece and a right piece, so that a left die core and a right die core are usually arranged during die design, and two plates are correspondingly placed on the two die cores for stamping and forming during stamping production, so that the left rear wheel cover outer plate and the right rear wheel cover outer plate can be processed simultaneously by using one die; the deformation of the workpiece is large in the drawing process of the automobile part, the phenomenon that the workpiece rebounds upwards after drawing is easy to occur in the traditional mode of punching by using the upper die and the lower die, so that drawing failure is caused, and particularly in the mode of synchronously processing the outer plates of the left and the right rear wheel covers, the phenomenon that rebound occurs more easily when the drawing is performed, so that the rejection rate of products is high, and therefore, the drawing die of the drawing process needs to be improved.
Disclosure of Invention
In order to solve the problems, the utility model provides a drawing rebound prevention die for an arc-shaped piece of an outer plate of a left rear wheel cover and a right rear wheel cover.
The technical scheme of the utility model is as follows: the drawing rebound-preventing mold for the arc-shaped parts of the outer plates of the left and right rear wheel covers comprises an upper mold assembly, a lower mold assembly and an intermediate pressing plate; the lower die assembly comprises a lower die holder, a lower die core A and a lower die core B, wherein the lower die core A and the lower die core B are symmetrically and fixedly arranged in the middle of the lower die holder, the lower die core A and the lower die core B have a certain height, and a plurality of jacks are arranged on the lower die holder; the middle pressing plate is sleeved in the lower die holder, a die core sleeve hole A and a die core sleeve hole B are symmetrically arranged in the middle of the middle pressing plate, the die core sleeve hole A is matched and sleeved on the outer side of the lower die core A to form a sliding pair, the die core sleeve hole B is matched and sleeved on the outer side of the lower die core B to form a sliding pair, middle inserts are arranged at the edges of the die core sleeve hole A and the die core sleeve hole B, guide pins are arranged at intervals between the middle inserts, an introduction inclined plane is arranged on the inner side of the guide pins, and a gas spring inserted into the insertion hole is arranged on the bottom surface of the middle pressing plate;
the upper film component comprises an upper die holder, an upper die core A and an upper die core B, the position of the upper die core A corresponds to the position of the lower die core A, the positions of the upper die core B and the lower die core B correspond to each other, and the edges of the upper die core A and the upper die core B are respectively provided with an upper insert corresponding to the middle insert.
Preferably, four square guide posts are arranged at four corners of the lower die holder, two guide bosses are arranged at two ends of the middle pressing plate, and the two guide bosses are sleeved between the square guide posts at two ends of the lower die holder and form a sliding pair.
Preferably, the upper surface of the guide boss is inwards provided with a square guide groove, both ends of the upper die holder are provided with square guide seats, and the guide seats are clamped in the guide groove to form a sliding pair.
Preferably, the side of square guide post is equipped with slider first, and the side of guide boss is equipped with the slider second of laminating with slider first slip, and the side of guide way is equipped with the slider third, and the side of guide holder is equipped with the slider butyl of laminating with slider third slip.
Preferably, a plurality of lower cushion blocks are uniformly arranged around the die core of the lower die holder, and a middle cushion block A corresponding to the lower cushion block is arranged on the bottom surface of the middle pressing plate.
Preferably, a plurality of middle cushion blocks B are uniformly arranged around the die core sleeve holes of the middle pressing plate, and an upper cushion block corresponding to the middle cushion blocks B is arranged on the bottom surface of the upper die base.
The beneficial technical effects of the utility model are as follows:
(1) The middle pressing plate is arranged on the lower die holder of the lower film assembly, the middle of the middle pressing plate is provided with the die core sleeve hole matched and sleeved on the lower die core, the lower die core extends out of the die core sleeve hole, the bottom surface of the middle pressing plate is provided with the air spring, a workpiece is placed on the lower die core of the extending part, when the upper die core in the upper die holder moves downwards to carry out punching and drawing delay on the workpiece, the middle pressing plate is stressed by the air spring to compress the air spring downwards, the impact force of part of the upper die core is buffered, so that the workpiece is slowly deformed to finish drawing, and therefore, the phenomenon of rebound can be effectively avoided when the left and right rear wheel cover outer plates are synchronously drawn, the drawing effect is good, and the rejection rate of products is lower.
(2) The two ends of the lower die base of the die are respectively provided with square guide posts, the two ends of the middle pressing plate are respectively provided with a guide boss sleeved between the square guide posts in a sliding manner, the guide bosses are provided with guide grooves, and the two ends of the upper die base are respectively provided with a guide seat sleeved in the guide grooves in a sliding manner, so that a guide mechanism is formed between the lower die base and the middle pressing plate, a guide mechanism is formed between the upper die base and the middle pressing plate, and the die assembly precision of the die is greatly improved by the double guide mechanism, and the product quality is ensured.
Drawings
FIG. 1 is a schematic perspective view of an intermediate platen of the present utility model after being mounted to a lower die assembly;
FIG. 2 is a schematic perspective view of a lower die assembly;
FIG. 3 is a schematic view of the front view of the intermediate platen;
FIG. 4 is a schematic perspective view of an intermediate platen;
fig. 5 is a schematic diagram of the front view of the upper die assembly.
In the drawing, 11, 111, 112, 113, jacks, 114, square guide posts, 115, 116, lower cushion blocks, 12, intermediate pressing plate, 121, 122, 123, intermediate insert, 124, guide pin, 125, gas spring, 126, guide boss, 127, guide slot, 128, second, 129, third, 103, intermediate cushion block, 104, second, 13, upper mold block, 131, upper mold core, 132, upper mold core, 133, upper insert, 134, guide seat, 135, third, 136.
Detailed Description
1-5, a drawing rebound prevention die for an outer plate circular arc-shaped piece of a left rear wheel cover and a right rear wheel cover comprises an upper die assembly, a lower die assembly and an intermediate pressing plate 12; the lower die assembly comprises a lower die holder 11, a lower die core A111 and a lower die core B112, wherein the lower die core A111 and the lower die core B112 are symmetrically and fixedly arranged in the middle of the lower die assembly, a certain gap is arranged between the lower die holder and the lower die assembly, and a plurality of jacks 113 are arranged on the lower die holder 11;
the middle pressing plate 12 is sleeved in the lower die holder 11, a die core sleeve hole A121 and a die core sleeve hole B122 are symmetrically arranged in the middle of the middle pressing plate 12, the die core sleeve hole A121 is matched and sleeved on the outer side of the lower die core A111, the die core sleeve hole B122 is matched and sleeved on the outer side of the lower die core B112, the lower die core A111 extends out of the die core sleeve hole A121, the lower die core B112 extends out of the die core sleeve hole B122, the extending part is used for placing a workpiece, middle insert blocks 123 are arranged at the edges of the die core sleeve hole A121 and the die core sleeve hole B122, guide pins 124 are arranged at intervals between the middle insert blocks 123, the guide pins 124 are used for rapidly guiding the workpiece into the die cores, the feeding efficiency is improved, a gas spring 125 inserted into the insertion hole 113 is arranged on the bottom surface of the middle pressing plate 12, the gas spring 125 is used for improving the elastic support for the middle pressing plate 12, the middle pressing plate 12 is stressed by the gas spring 125 downwards, and the impact force of part of the upper die core is buffered;
the upper film component comprises an upper die holder 13, an upper die core A131 and an upper die core B132, the position of the upper die core A131 corresponds to the position of the lower die core A111, the position of the upper die core B132 corresponds to the position of the lower die core B112 and is used for realizing accurate die assembly drawing, the edges of the upper die core A131 and the upper die core B132 are respectively provided with an upper insert block 133, and the position of the upper insert block 133 corresponds to the position of the middle insert block 123.
Four square guide posts 114 are arranged at four corners of the lower die holder 11, two guide bosses 126 are arranged at two ends of the middle pressing plate 12, and the two guide bosses 126 are sleeved between the square guide posts 114 at two ends of the lower die holder 11 and form a sliding pair; the upper surface of the guide boss 126 is internally provided with a guide groove 127, both ends of the upper die holder 13 are provided with guide holders 134, and the guide holders 134 are clamped in the guide groove 127 to form a sliding pair; therefore, a guide mechanism is formed between the lower die holder 11 and the middle pressing plate 12, a guide mechanism is formed between the upper die holder 13 and the middle pressing plate 12, and the dual guide mechanism greatly improves the die clamping precision of the die and ensures the product quality.
The side of square guide post 114 is equipped with slider first 115, and the side of guide boss 126 is equipped with the slider second 128 of laminating with slider first 115, and the side of guide slot 127 is equipped with slider third 129, and the side of guide holder 134 is equipped with the slider fourth 135 of laminating with slider third 129, and each slider is used for improving relative sliding wearability.
A plurality of lower cushion blocks 116 are uniformly arranged around the mold core of the lower mold base 11, a middle cushion block A103 corresponding to the lower cushion block 116 is arranged on the bottom surface of the middle pressing plate 12, and the middle cushion block A103 is pressed on the lower cushion block 116 during mold closing for reducing mold closing vibration; a plurality of middle cushion blocks B104 are uniformly arranged around the die core sleeve holes of the middle pressing plate 12, an upper cushion block 136 corresponding to the middle cushion blocks B104 is arranged on the bottom surface of the upper die base 13, and the middle cushion blocks B104 are pressed on the upper cushion blocks 136 during die assembly, so that die assembly vibration is reduced.
The working process of the utility model is as follows: the die is used for stamping and drawing time delay, the left rear wheel cover outer plate is firstly placed on the lower die core A111 through the guide pin 124, the right rear wheel cover outer plate is placed on the lower die core B112, then the upper die assembly is driven to move downwards, the left rear wheel cover outer plate is stamped and drawn through the upper die core A131 and the lower die core A111, the right rear wheel cover outer plate is stamped and drawn through the upper die core B132 and the lower die core B112, the middle pressing plate 12 is pressed downwards to compress the air spring 125 during stamping and drawing, the impact force of part of the upper die core is buffered, and two workpieces are slowly deformed to finish drawing, so that rebound phenomenon can be effectively avoided when the left rear wheel cover outer plate and the right rear wheel cover outer plate are synchronously drawn, the drawing effect is good, and the rejection rate of products is lower.
Claims (6)
1. A draw rebound prevention die for arc-shaped parts of outer plates of left and right rear wheel covers is characterized in that:
the die comprises an upper die assembly, a lower die assembly and an intermediate pressing plate;
the lower die assembly comprises a lower die holder, a lower die core A and a lower die core B, wherein the lower die core A and the lower die core B are symmetrically and fixedly arranged in the middle of the lower die holder, and a plurality of jacks are arranged on the lower die holder;
the middle pressing plate is sleeved in the lower die holder, a die core sleeve hole A and a die core sleeve hole B are symmetrically arranged in the middle of the middle pressing plate, the die core sleeve hole A is matched and sleeved on the outer side of the lower die core A, the die core sleeve hole B is matched and sleeved on the outer side of the lower die core B, middle inserts are arranged at the edges of the die core sleeve hole A and the die core sleeve hole B, guide pins are arranged between the middle inserts at intervals, and a gas spring inserted into the insertion hole is arranged on the bottom surface of the middle pressing plate;
the upper film component comprises an upper die holder, an upper die core A and an upper die core B, the position of the upper die core A corresponds to the position of the lower die core A, the position of the upper die core B corresponds to the position of the lower die core B, and the edges of the upper die core A and the upper die core B are respectively provided with an upper insert, and the position of the upper insert corresponds to the position of the middle insert.
2. The drawing rebound prevention die for the circular arc-shaped pieces of the outer plates of the left and right rear wheel covers according to claim 1 is characterized in that: four square guide posts are arranged at four corners of the lower die holder, two guide bosses are arranged at two ends of the middle pressing plate, and the two guide bosses are sleeved between the square guide posts at two ends of the lower die holder and form a sliding pair.
3. The drawing rebound prevention die for the circular arc-shaped pieces of the outer plates of the left and right rear wheel covers according to claim 2 is characterized in that: the upper surface of guide boss inwards is equipped with the guide way, and the both ends of upper die base all are equipped with the guide holder, and the guide holder card is gone into in the guide way and is formed the sliding pair.
4. A drawing rebound prevention die for an outer circular arc piece of a left and right rear wheel cover according to claim 3, characterized in that: the side of square guide post is equipped with slider first, and the side of guide boss is equipped with the slider second of laminating with slider first, and the side of guide slot is equipped with the slider third, and the side of guide holder is equipped with the slider butyl of laminating with slider third.
5. The drawing rebound prevention die for the circular arc-shaped pieces of the outer plates of the left and right rear wheel covers according to claim 1 is characterized in that: a plurality of lower cushion blocks are uniformly arranged around the die core of the lower die holder, and a middle cushion block A corresponding to the lower cushion blocks is arranged on the bottom surface of the middle pressing plate.
6. The drawing rebound prevention die for the circular arc-shaped pieces of the outer plates of the left and right rear wheel covers according to claim 1 is characterized in that: and a plurality of middle cushion blocks B are uniformly arranged around the die core sleeve holes of the middle pressing plate, and an upper cushion block corresponding to the middle cushion blocks B is arranged on the bottom surface of the upper die base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223412966.5U CN218963813U (en) | 2022-12-20 | 2022-12-20 | Drawing rebound-proof die for arc-shaped parts of outer plates of left and right rear wheel covers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223412966.5U CN218963813U (en) | 2022-12-20 | 2022-12-20 | Drawing rebound-proof die for arc-shaped parts of outer plates of left and right rear wheel covers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218963813U true CN218963813U (en) | 2023-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223412966.5U Active CN218963813U (en) | 2022-12-20 | 2022-12-20 | Drawing rebound-proof die for arc-shaped parts of outer plates of left and right rear wheel covers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218963813U (en) |
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- 2022-12-20 CN CN202223412966.5U patent/CN218963813U/en active Active
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