CN216031934U

CN216031934U - Core structure of automobile gasket mould

Info

Publication number: CN216031934U
Application number: CN202121194685.XU
Authority: CN
Inventors: 杨良; 张树海
Original assignee: Heyuan Golden 3d Intelligent Manufacturing Co ltd
Current assignee: Heyuan Golden 3d Intelligent Manufacturing Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-03-15
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a core structure of an automobile liner die, which relates to the technical field of numerical control machining and comprises a die base, wherein the top of the die base is provided with a core matching curved surface, the top of the die base is provided with a die cavity, the core matching curved surface is distributed around the die cavity, a reference boundary line is arranged at the position, which is offset by 8-10 mm, of the core matching curved surface from the boundary line of the die cavity, a high-precision machining region is arranged in a region, which is relatively close to the die cavity, of the core matching curved surface, a general-precision machining region is arranged in a region, which is relatively far away from the die cavity, of the core matching curved surface, and the section difference between the high-precision machining region and the general-precision machining region is 0.02 mm. The cost for processing is reduced.

Description

Core structure of automobile gasket mould

Technical Field

The utility model relates to the technical field of numerical control machining, in particular to a core structure of an automobile liner die.

Background

The existing machining method for the matching curved surface of the mold core of the automobile gasket mold is to directly perform integral cutting machining by using a milling cutter by using a designed 3D model, the area of the matching curved surface is large, the milling cutter is abraded in the machining process, the allowance of the matching curved surface is uneven, the dimensional precision is inaccurate, a grinding machine, abrasive paper and the like are required to be used for repairing and matching in the subsequent process of assembly, the workload of assembly personnel is increased, the appearance and the construction period of the mold are influenced, the manufacturing cost of the mold is increased, and the machining method does not accord with the characteristics of high numerical control machining efficiency and stable quality. Therefore, the existing mold core matching curved surface processing method is to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a core structure of an automobile liner die, which solves the technical problem that the machining size is not accurate due to the fact that the area of a matched curved surface is large in the machining process in the prior art.

In order to solve the technical problems, the core structure of the automobile liner mold comprises a mold base, wherein a core matching curved surface is arranged at the top of the mold base, a cavity is arranged at the top of the mold base, the core matching curved surface is distributed around the cavity, a reference boundary line is arranged at the position, which is offset from the boundary line of the cavity by 8-10 mm, of the core matching curved surface, a high-precision machining area is arranged in an area, which is relatively close to the cavity, of the core matching curved surface, a general-precision machining area is arranged in an area, which is relatively far away from the cavity, of the core matching curved surface, the section difference between the high-precision machining area and the general-precision machining area is 0.02mm, another reference boundary line is arranged at the position, which is far away from the high-precision machining area, of the general-precision machining area, the 8-10 mm of the general-precision machining area, and a complete empty avoiding area is arranged at the position, of the other reference boundary line, which is far away from the high-precision machining area, and the section difference between the general precision machining area and the completely clearance area is 0.3 mm.

Preferably, the cavity is internally provided with a notch matched with the automobile gasket body.

Preferably, the number of the notches is two, and the notches are circular and rectangular, respectively.

Preferably, the two sides of the mold base are provided with eleven mounting holes.

Preferably, the material of the mold base is high-carbon low-alloy.

Compared with the related art, the core structure of the automobile gasket mold provided by the utility model has the following beneficial effects:

1. when the device is used, a high-precision machining area, a general-precision machining area and a complete clearance area are arranged to be matched for use, so that a worker only needs to perform middle machining and does not need to perform finish machining when the complete clearance area is machined, the finish machining time of the complete clearance area and a milling cutter needing finish machining are saved, the machining cost is reduced, similarly, when the general-precision machining area is machined, a common finish machining milling cutter and large machining feeding and cutting amount are adopted, the finish machining time of the general-precision machining area and the milling cutter needing high-precision machining are shortened, the machining cost is reduced, and for the high-precision machining area, a brand-new milling cutter and a normal range of machining feeding and cutting amount are adopted in the finish machining process, so that stable and reliable machining precision is obtained, and the machining requirement of a core matching curved surface is met, meanwhile, after the machining is finished, a brand-new spherical milling cutter can be used for detecting machining allowance in a scribing mode so as to ensure that a high-precision machining area is the shape and the size required by the matching of the core and the curved surface, repeated machine installation and repair due to unqualified machining are avoided, and the device solves the problem that the machining size is not accurate due to the fact that the area of the matching curved surface is large in the machining process in the prior art.

2. When the device is used, the device can be conveniently installed by arranging the installation hole.

Drawings

FIG. 1 is a schematic diagram of a conventional die structure for numerical control machining of a matched curved surface;

FIG. 2 is a schematic view of a core-fitted curved surface of a core structure of an automobile liner mold being graded;

FIG. 3 is a schematic illustration of a post-process rapid detection of process margin in a core structure of an automotive gasket mold;

fig. 4 is a schematic view showing the overall structure of a core structure of an automobile liner mold;

FIG. 5 is a schematic view of a novel method of forming a mating curved surface in a core structure of an automotive liner mold;

FIG. 6 is a schematic view of a conventional front and back module assembly;

FIG. 7 is a schematic view of a mold assembly for a new tooling method in the core structure of an automotive liner mold;

FIG. 8 is a schematic view of a core mating curve modification in a core structure of an automotive liner mold;

FIG. 9 is a schematic view of a completely void-free region in a core structure of an automotive liner mold;

FIG. 10 is a schematic view of a general precision machined area in the core structure of an automotive liner mold;

FIG. 11 is a schematic view of a high-precision machined area in a core structure of an automotive liner mold;

fig. 12 is a structural view illustrating a structure for rapidly detecting a process margin after processing in a core structure of an automobile liner mold.

Reference numbers in the figures: 1. a mold base; 2. the mold core is matched with the curved surface; 3. a cavity; 4. a high-precision machining area; 5. a general precision machining area; 6. a completely void-free area; 7. and (7) installing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the first embodiment, as shown in fig. 1-12, the present invention includes a mold base 1, a core-fitting curved surface 2 is disposed on the top of the mold base 1, a cavity 3 is disposed on the top of the mold base 1, the core-fitting curved surface 2 is distributed around the cavity 3, a reference boundary line is disposed at a position where the core-fitting curved surface 2 is offset from the boundary line of the cavity 3 by 8-10 mm, a high-precision machining region 4 is disposed at a region of the core-fitting curved surface 2 relatively close to the cavity 3, a general-precision machining region 5 is disposed at a region of the core-fitting curved surface 2 relatively far from the cavity 3, a step difference between the high-precision machining region 4 and the general-precision machining region 5 is 0.02mm, another reference boundary line is disposed at a position of 8-10 mm of the general-precision machining region 5 far from the high-precision machining region 4, and a completely empty-avoiding region 6 is disposed at a position of the other reference boundary line far from the high-precision machining region 4, and the section difference between the general precision machining area 5 and the complete clearance area 6 is 0.3 mm.

In the second embodiment, on the basis of the first embodiment, the cavity 3 is provided with a notch matched with the body of the automobile gasket, and the arrangement can facilitate the processing of the automobile gasket.

In the third embodiment, on the basis of the second embodiment, the number of the notches is two, and the notches are respectively circular and rectangular, so that the accuracy of processing the liner can be improved.

Fourth embodiment, on the basis of first embodiment, mounting holes 7 have been seted up to the both sides of mould base 1, and the quantity of mounting hole 7 is eleven, and this setting can conveniently install mould base 1.

In the sixth embodiment, the material of the mold base 1 is high-carbon low-alloy, and this arrangement utilizes the good stability of the high-carbon low-alloy, so as to prolong the service life of the apparatus.

The working principle is as follows:

when the device is used, a high-precision machining area 4, a general-precision machining area 5 and a complete clearance area 6 are arranged to be matched for use, so that a worker only needs to perform middle machining and does not need to perform finish machining when the complete clearance area 6 is machined, the finish machining time of the complete clearance area 6 and a milling cutter needing finish machining are saved, the machining cost is reduced, similarly, when the general-precision machining area 5 is machined, a common finish machining milling cutter and large machining feeding and cutting amount are adopted, the finish machining time of the general-precision machining area 5 and the milling cutter needing high-precision machining are shortened, the machining cost is reduced, and a brand-new milling cutter and the machining feeding and cutting amount in a normal range are adopted in the finish machining process of the high-precision machining area 4, so that stable and reliable machining precision is obtained, and the machining requirement of a core matching curved surface is met, meanwhile, after the machining is finished, a brand-new spherical milling cutter can be used for detecting machining allowance in a scribing mode so as to ensure that the high-precision machining area 4 is the shape and the size required by the core matching curved surface, repeated machine installation and repair due to unqualified machining are avoided, and the device solves the problem that the machining size is not accurate due to the fact that the matching curved surface area is large in the machining process in the prior art.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a core structure of car liner mould, includes mould base (1), its characterized in that: the mold comprises a mold base (1), wherein a core matching curved surface (2) is arranged at the top of the mold base (1), a cavity (3) is arranged at the top of the mold base (1), the core matching curved surface (2) is distributed around the cavity (3), a reference boundary line is arranged at the distance from the core matching curved surface (2) to the boundary line of the cavity (3), a high-precision machining region (4) is arranged in a region of the core matching curved surface (2) relatively close to the cavity (3), a general-precision machining region (5) is arranged in a region of the core matching curved surface (2) relatively far away from the cavity (3), a section difference exists between the high-precision machining region (4) and the general-precision machining region (5), another reference boundary line is arranged at a position of the general-precision machining region (5) far away from the high-precision machining region (4), and a complete void avoiding region (6) is arranged at a position of the other reference boundary line far away from the high-precision machining region (4), and a section difference exists between the general precision machining area (5) and the complete clearance area (6).

2. The core structure of the automobile gasket mold as set forth in claim 1, wherein a recess adapted to the automobile gasket body is formed in the cavity (3).

3. The core structure of an automobile gasket mold as set forth in claim 2, wherein said notches are two in number, and are circular and rectangular, respectively.

4. The core structure of the automobile gasket mold as claimed in claim 1, wherein mounting holes (7) are formed in two sides of the mold base (1), and the number of the mounting holes (7) is eleven.

5. The core structure of the automobile liner mold as claimed in claim 1, wherein the material of the mold base (1) is a high carbon low alloy.

6. The core structure of an automobile cushion mold according to claim 1, wherein a step difference provided between the general-precision machining region (5) and the completely empty-clearance region (6) is 0.3 mm.

7. The core structure of an automobile gasket mold as set forth in claim 1, wherein the step difference between the high-precision machining region (4) and the general-precision machining region (5) is 0.02 mm.

8. The core structure of an automobile cushion mold according to claim 1, wherein one of the reference boundary lines is provided at a position where the core-fitted curved surface (2) is offset from the boundary line of the cavity (3) by 8 to 10mm, and the other reference boundary line is provided at a position where the general-precision machining region (5) is located away from the high-precision machining region (4) by 8 to 10 mm.