Floating shaping and trimming composite die structure
Technical Field
The utility model relates to a punching press field, in particular to plastic deburring composite die structure floats.
Background
At present, most of manufacturing processes of outer covers of other vehicle enterprises, such as side walls, fenders and the like, are 5-6 processes, and shaping and trimming processes at the same position are basically separated. In consideration of the universality of the production line, the production process of the covering part of the company is basically 4 processes. On the premise of short process, not only the function implementation of the product is ensured, but also the size and the precision of the flour product are ensured, which brings great difficulty to the process arrangement.
Disclosure of Invention
The utility model aims at providing a plastic deburring composite die structure floats can effectually shorten the mould process through this structure, reduces investment cost.
The utility model comprises a lower bottom plate, a lower die shaping insert, a trimming concave die, an upper bottom plate, an upper pressure plate, an upper die fixing seat, an upper die shaping insert and an upper die trimming insert;
the lower die shaping insert is fixed on the lower base plate, the trimming female die is embedded in the lower die shaping insert, the trimming female die is a standard female die, and the trimming female die is a trimming device.
The upper die comprises an upper base plate, an upper pressure plate, an upper die fixing seat, an upper die reshaping insert and an upper die trimming insert, wherein the upper die fixing seat is installed on the upper base plate, the upper die trimming insert is installed on the upper die fixing seat, the upper die trimming insert penetrates through the upper die reshaping insert, and the upper die reshaping insert is installed on the upper die fixing seat in a suspending manner through a limiting screw. The upper die shaping insert is guided with the upper die fixing seat on four sides, and the upper base plate is installed on the upper pressure plate.
The utility model discloses a working process:
the whole upper die is in spatial arrangement, the upper die fixing seat is used for bridge-crossing type connection assembly, the upper die shaping insert is installed on the upper die fixing seat in a suspension mode through two limiting screws, the four sides of the upper die shaping insert are guided by the upper die fixing seat, the upper die trimming insert is fixed on the upper die fixing seat, penetrates through the upper die shaping insert and goes down along with the upper die. And when the pressure of the upper pressure plate reaches 55mm before the bottom, the upper pressure plate starts to press the material, and when the pressure of the upper pressure plate reaches 40mm before the bottom, the shaping insert of the upper die starts to shape under the action of two nitrogen cylinders arranged on the upper base plate, and when the pressure of the upper pressure plate reaches 5mm before the bottom, the trimming insert of the upper die starts to work, and the shaping and trimming work is finished after the upper die reaches. Because the shaping force is far less than the pressing force of the nitrogen cylinder, the shaping is basically finished before 5mm, and the trimming has no size variation.
The utility model has the advantages that:
1. traditional plastic and deburring all adopt two preface moulds, the utility model discloses utilize the requirement that the preface mould realized two kinds of technologies, both reduced the mould investment and also improved production efficiency, also guaranteed the face article and the size precision requirement of finished piece simultaneously.
2. The floating shaping and trimming composite die structure enables a workpiece to be firstly shaped in place and then trimmed, solves the problem of dimensional precision of the workpiece, and simultaneously shortens the number of die processes, reduces die investment and improves production efficiency.
Drawings
Fig. 1 is a structural intention of the present invention.
Detailed Description
Referring to fig. 1, the present embodiment includes a lower base plate 1, a lower die shaping insert 2, a trimming die 3, an upper base plate 4, an upper pressure plate 5, an upper die fixing seat 6, an upper die shaping insert 7, and an upper die trimming insert 8.
The lower bottom plate 1, the lower die reshaping insert 2 and the trimming female die 3 form a lower die structure, the lower die reshaping insert 2 is fixed on the lower bottom plate 1, the trimming female die 3 is embedded in the lower die reshaping insert 2, the trimming female die 3 is a standard female die, and the trimming female die 3 is a trimming device.
The upper die comprises an upper base plate 4, an upper pressure plate 5, an upper die fixing seat 6, an upper die reshaping insert 7 and an upper die trimming insert 8, wherein the upper die fixing seat 6 is installed on the upper base plate 4, the upper die trimming insert 8 is installed on the upper die fixing seat 6, the upper die trimming insert 8 penetrates through the upper die reshaping insert 7, and the upper die reshaping insert 7 is installed on the upper die fixing seat 6 in a suspending manner through a limiting screw. Four sides of the upper die shaping insert 7 are guided by the upper die fixing seat 6, and the upper base plate 4 is arranged on the upper pressure plate 5.
The working process of the embodiment:
the whole upper die is in spatial arrangement, gap bridge type connection assembly is carried out on the upper die fixing seat 6, the upper die shaping insert 7 is installed on the upper die fixing seat 6 through two limit screws in a suspension mode, the four sides of the upper die shaping insert 7 are guided by the upper die fixing seat 6, the upper die trimming insert 8 is fixed on the upper die fixing seat 6, penetrates through the upper die shaping insert 7 and goes down along with an upper die. When the pressure of the upper pressure plate 5 reaches 55mm before the bottom, the upper pressure plate starts to press the material, when the pressure reaches 40mm before the bottom, the upper die shaping insert 7 starts to shape under the action of two nitrogen cylinders arranged on the upper base plate 4, when the pressure reaches 5mm before the bottom, the upper die trimming insert 8 starts to work, and the shaping and trimming work is completed after the upper die reaches the bottom. Because the shaping force is far less than the pressing force of the nitrogen cylinder, the shaping is basically finished before 5mm, and the trimming has no size variation.