CN111604656B - Method for processing pattern block of tire mold - Google Patents
Method for processing pattern block of tire mold Download PDFInfo
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- CN111604656B CN111604656B CN202010506668.9A CN202010506668A CN111604656B CN 111604656 B CN111604656 B CN 111604656B CN 202010506668 A CN202010506668 A CN 202010506668A CN 111604656 B CN111604656 B CN 111604656B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
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Abstract
The invention relates to a method for processing a tire mold pattern block, which belongs to the technical field of tire mold pattern block processing, and comprises the following steps of A1: clamping and fixing a single tire mold pattern block blank, milling other five surfaces of the blank material except the bottom surface, then roughly machining an angle matching surface, and finely machining the back surface and the side surface of the pattern block blank; a2: turning over the pattern block, clamping and fixing the back of the pattern block downwards, milling the bottom surface to form a die cavity surface, then performing finish machining on the angle matching surface and the die cavity surface, and performing material overcutting removal machining on the die cavity surface; a3: 3D material increase processing is carried out on the cavity surface of the mold of the pattern block; a4: and combining the pattern blocks obtained in the step A3 into a tire mold, and performing air hole sleeve processing, air hole sleeve mounting, bench work grinding and surface strengthening treatment on the tire mold so as to solve the technical problems of shortening the mold processing period and improving the processing quality of the mold.
Description
Technical Field
The invention relates to a method for processing a pattern block of a tire mold, and belongs to the technical field of processing of pattern blocks of tire molds.
Background
The tire mold is a mold for vulcanizing and molding various tires, is an important tool used in the tire vulcanization process, and generally adopts two processes of electric spark and precision casting to process in the tire mold manufacturing process in the prior art, wherein the electric spark processing process flow is as follows: processing a blank material of a circular ring die → roughly processing a pattern of the die → carving a pattern electrode → electric spark discharge processing of the die → dividing the die → processing an angle matching surface → processing a pattern block air hole → installing an air hole → coping by a bench worker → strengthening processing of the surface. The precision casting processing process flow comprises the following steps: five-axis basic mold carving → silica gel mold making → plaster mold making → mold casting molding → mold segmentation → mold back → angle matching surface processing → pattern block air hole processing → air hole installation → bench work coping → surface strengthening treatment. The prior art including the above two processing techniques still has some disadvantages: firstly, various processing devices and various process steps are needed, and the processing period is long; secondly, in the prior art, the requirement of the shape of a pattern mould of a complex tire cannot be met by directly milling the pattern of the mould, and the mould cannot be finely machined in place easily due to the cutter fillet; thirdly, in the prior art, the discharge machining speed is low, the machined conventional steel sheet is wedge-shaped, and 3D steel sheet discharge machining cannot be realized; fourthly, if the steel sheet in the prior art adopts the embedding technology, the steel sheet is not integrally formed after being embedded, and the strength cannot be ensured; in the prior art, the cast and molded pattern blocks of the mold need to be molded through a plurality of processes, the phenomena of expansion with heat and contraction with cold are serious, and the molding quality is difficult to control; after determining that the mold needs to be added, the general customers have very urgent requirements on the development cycle, and how to shorten the processing cycle of the mold is a technical problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a method for processing a pattern block of a tire mold, which is used for solving the technical problems of shortening the mold processing period and improving the processing quality of the mold.
The technical scheme for solving the technical problems is as follows: a method for processing a tire mold pattern block comprises the following steps: a1: clamping and fixing the bottom surface of the pattern block blank of the single tire mold, milling other five surfaces of a blank material except the bottom surface, then roughly machining an angle matching surface, reserving machining allowance relative to a standard size, and finely machining the back surface and the side surface of the pattern block blank to reach the standard shape and size;
a2: turning over the pattern block processed in the step A1, clamping and fixing the back of the pattern block downwards, milling the bottom surface to form a mold cavity surface, then performing finish machining on the angle matching surface and the mold cavity surface, and performing material overcutting removal machining on the pattern part which cannot be milled in place in the mold cavity surface;
a3: performing 3D material increase processing on the cavity surface of the mould of the pattern block processed in the step A2 to reach the standard shape and size;
a4: and (4) combining the pattern blocks obtained in the step A3 into a tire mold, and performing air hole sleeve processing, air hole sleeve mounting, bench work coping and surface strengthening treatment on the tire mold.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, before the step a1 is performed, the block blank needs to be placed for aging treatment.
Further, step a1 adopts a numerical control machine tool with a triaxial processing function, and the processing of the back and the side needs rough processing, semi-finishing and finishing.
Further, the step A2 adopts a numerical control machine tool with five-axis machining function, and rough machining, semi-finish machining and finish machining are needed in the machining process of the angle matching surface and the die cavity surface.
Further, before the 3D additive machining is performed in step a3, a negative margin is left when the block is subjected to material overcutting removal machining.
Further, before the 3D additive machining is carried out in the step A3, when the block root angle material is cut off and machined, the allowance is not larger than zero.
Further, before the 3D material increase processing is carried out in the step A3, after the block steel sheet is directly subjected to removing processing, the steel sheet 3D material increase processing is directly carried out on the curve of the mould tire.
Furthermore, the pattern block blank is made of a single square material, and the single-side placing quantity of the pattern block blank and the standard size of the processed pattern block of the die is 3 mm.
The invention has the beneficial effects that: the back and the side of the pattern block are machined by one-time clamping, the machining size precision is high, and the machining process steps are reduced; milling of the die cavity surface and finish machining of the angle matching surface are completed by overturning and clamping, so that the clamping frequency is reduced, and the machining beat is reduced; by adopting the method combining milling and 3D material increase processing, the technical problems that the angle cannot be cleared in the milling processing and the 3D steel sheet cannot be processed are solved, the pattern block processing of the complicated pattern tire mold is realized, the limitations of multiple steps and long processing period existing in the traditional electric spark discharging and precision casting processing are broken through, the processing period of the mold is greatly shortened, meanwhile, in the aspect of pattern steel sheet processing, the processing size effect is superior to that of the traditional electric spark discharging processing, the problem that the integrally formed steel sheet of the secondary discharging mold is wedge-shaped in the electric spark discharging processing process is avoided, and the processing quality of the tire mold is improved.
Drawings
FIG. 1 is a first block clamping diagram in step A1;
FIG. 2 is a second block clamping diagram of step A1;
FIG. 3 is a schematic block clamping diagram of step A2;
FIG. 4 is a flow chart of a method of processing a tire mold block of the present invention.
In the figure, 1 is a bottom surface, 2 is a side surface, 3 is an angle matching surface, 4 is a back surface, and 5 is a mould cavity surface.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
A method for processing a tire mold pattern block comprises the following steps: a1: the pattern block blank is made of a single square material, the single-side placement amount of the pattern block blank and the standard size of a processed mold is 3mm, the pattern block blank is divided into six surfaces which are respectively a bottom surface 1, a back surface 4, two side surfaces 2 and two angle matching surfaces 3, a mold cavity surface 5 is obtained by post-processing the bottom surface 1, the pattern block blanks are mutually matched and installed through the angle matching surfaces 3 to form an annular mold, the pattern block blank is firstly placed for aging treatment, the bottom surface 1 of the single tire mold pattern block blank is clamped and fixed, the other five surfaces of the blank material except the bottom surface 1 are milled, then the angle matching surfaces 3 are roughly processed, machining allowance is reserved relative to the standard size, a numerical control machine tool with a three-axis machining function is adopted, and the back surface 4 and the side surfaces 2 of the pattern block blank are finely processed, the back 4 and the side 2 need to be subjected to rough machining, semi-finish machining and finish machining in sequence, the back 4 and the side 2 of the pattern block are machined by one-time clamping, the machining size precision is high, and the machining process steps are reduced;
a2: turning the pattern block processed in the step A1, clamping and fixing the back 4 of the pattern block under the pattern block, milling the bottom 1 to form a mold cavity surface 5, adopting a numerical control machine tool with five-axis processing function, then performing finish processing on the angle matching surface 3 and the mold cavity surface 5, wherein rough processing, semi-finish processing and finish processing are required in sequence in the processing process of the angle matching surface 3 and the mold cavity surface 5, performing material over-cutting removal processing on the pattern part which cannot be milled in place in the mold cavity surface 5, and leaving negative allowance, wherein the allowance is not more than zero when the pattern block root angle material is subjected to the over-cutting removal processing, the pattern block steel sheet is directly subjected to removal processing, and the milling processing of the mold cavity surface and the finish processing of the angle matching surface are completed through turning and clamping, so that the clamping frequency is reduced, and the;
a3: 3D material increasing processing is carried out on the die cavity surface 5 of the pattern block processed in the step A2, and steel sheet 3D material increasing processing is directly carried out on the curve of the die tire to reach the standard shape and size; by adopting the method combining milling and 3D material increase processing, the technical problems that the angle cannot be cleared in the milling processing and the 3D steel sheet cannot be processed are solved, the pattern block processing of the complicated pattern tire mold is realized, the limitations of multiple steps and long processing period existing in the traditional electric spark discharging and precision casting processing are broken through, the processing period of the mold is greatly shortened, meanwhile, in the aspect of pattern steel sheet processing, the processing size effect is superior to that of the traditional electric spark discharging processing, the problem that the integrally formed steel sheet of the secondary discharging mold is wedge-shaped in the electric spark discharging processing process is avoided, and the processing quality of the tire mold is improved;
a4: and (4) combining the pattern blocks obtained in the step A3 into a tire mold, and performing air hole sleeve processing, air hole sleeve mounting, bench work coping and surface strengthening treatment on the tire mold.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A processing method of a tire mold pattern block is characterized by comprising the following steps: the method comprises the following steps: a1: clamping and fixing the bottom surface of the pattern block blank of the single tire mold, milling other five surfaces of a blank material except the bottom surface, then roughly machining an angle matching surface, reserving machining allowance relative to a standard size, and finely machining the back surface and the side surface of the pattern block blank to reach the standard shape and size; a2: turning over the pattern block processed in the step A1, clamping and fixing the back of the pattern block downwards, milling the bottom surface to form a mold cavity surface, then performing finish machining on the angle matching surface and the mold cavity surface, and performing material overcutting removal machining on the pattern part which cannot be milled in place in the mold cavity surface; a3: performing 3D material increase processing on the cavity surface of the mould of the pattern block processed in the step A2 to reach the standard shape and size; a4: and (4) combining the pattern blocks obtained in the step A3 into a tire mold, and performing air hole sleeve processing, air hole sleeve mounting, bench work coping and surface strengthening treatment on the tire mold.
2. The method of processing a tire mold block according to claim 1, wherein: before the step A1 is processed, the block blank needs to be placed for aging treatment.
3. The method of processing a tire mold block according to claim 2, wherein: step A1 is that the machining adopts a numerical control machine tool with a triaxial machining function, and the machining of the back and the side needs rough machining, semi-finish machining and finish machining.
4. The method of processing a tire mold block according to claim 3, wherein: step A2 is carried out by adopting a numerical control machine tool with five-axis machining function, and rough machining, semi-finish machining and finish machining are required in the machining process of the angle matching surface and the die cavity surface.
5. The method of processing a tire mold block according to claim 4, wherein: and (C) leaving a negative allowance when the pattern blocks are subjected to material overcutting removal processing before the 3D additive processing is carried out in the step A3.
6. The method of processing a tire mold block according to claim 5, wherein: before the step A3 is subjected to 3D additive machining, the allowance is not more than zero when the pattern block root angle material is cut excessively and is removed.
7. The method of processing a tire mold block according to claim 6, wherein: and D, directly carrying out 3D material increase processing on the steel sheets on the curve of the mold tire after directly removing the pattern block steel sheets before carrying out 3D material increase processing on the step A3.
8. The method of processing a tire mold block according to claim 1, wherein: the pattern block blank is made of a single square material, and the single-side placing quantity of the pattern block blank and the standard size of the pattern block of the processed die is 3 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010506668.9A CN111604656B (en) | 2020-06-05 | 2020-06-05 | Method for processing pattern block of tire mold |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010506668.9A CN111604656B (en) | 2020-06-05 | 2020-06-05 | Method for processing pattern block of tire mold |
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| CN111604656A CN111604656A (en) | 2020-09-01 |
| CN111604656B true CN111604656B (en) | 2021-05-25 |
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| CN114888195A (en) * | 2022-04-06 | 2022-08-12 | 浙江康家宝炊具有限公司 | Manufacturing method of pot with patterns on inner and outer surfaces and pot manufactured by using same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224541A (en) * | 2008-02-05 | 2008-07-23 | 揭阳市天阳模具有限公司 | Accurately manufacturing method for adjustable module tracery sector blocks of meridian tire |
| CN106141600A (en) * | 2016-07-01 | 2016-11-23 | 宜兴市凯诚模具有限公司 | A kind of processing technology of automobile tire mould |
| CN108099064A (en) * | 2017-11-27 | 2018-06-01 | 山东豪迈机械科技股份有限公司 | Mould manufacturing method and tire-mold based on 3D printing |
| CN109016272A (en) * | 2018-06-26 | 2018-12-18 | 珠海格力精密模具有限公司 | A kind of production method and 3D printing injection mold of injection mold |
| US10525532B2 (en) * | 2014-07-28 | 2020-01-07 | Compagnie Generale Des Etablissements Michelin | Process for powder-based additive manufacturing of a part, in particular a lining blade for a tire mould |
-
2020
- 2020-06-05 CN CN202010506668.9A patent/CN111604656B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224541A (en) * | 2008-02-05 | 2008-07-23 | 揭阳市天阳模具有限公司 | Accurately manufacturing method for adjustable module tracery sector blocks of meridian tire |
| US10525532B2 (en) * | 2014-07-28 | 2020-01-07 | Compagnie Generale Des Etablissements Michelin | Process for powder-based additive manufacturing of a part, in particular a lining blade for a tire mould |
| CN106141600A (en) * | 2016-07-01 | 2016-11-23 | 宜兴市凯诚模具有限公司 | A kind of processing technology of automobile tire mould |
| CN108099064A (en) * | 2017-11-27 | 2018-06-01 | 山东豪迈机械科技股份有限公司 | Mould manufacturing method and tire-mold based on 3D printing |
| CN109016272A (en) * | 2018-06-26 | 2018-12-18 | 珠海格力精密模具有限公司 | A kind of production method and 3D printing injection mold of injection mold |
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