Zero clearance blade producing method of shaping press cutting mold
A technology of punching die and manufacturing method, which is applied in the field of cutting edge manufacturing of forming punching die, can solve the problems of cutting edge collapse, welding repair, short service life, uneven clearance of the cutting edge, etc. high intensity effect
Active Publication Date: 2010-02-03
NANTONG CHAODA EQUIP CO LTD
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AI Technical Summary
Problems solved by technology
[0002] So far, there is no effective control method for the hardness of the punching edge of the thermoforming mold. Usually, the hardness is increased by inserting and welding other materials, and it is completed by manual repair after wire cutting or CNC processing.
A skilled fitter usually needs 4 to 6 working days to complete the repair of a pair of cutting edges. The mold clamping process is time-consuming and labor-intensive, and the gap between the cutting edges is uneven, the finish is not high, and the service life is short.
The phenomenon of knife-edge chipping, welding repair and repeated repairs often occurs, the controllability in production is not strong, the efficiency is low, the punching products are dripping, and the phenomenon of wire drawing is serious
Method used
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Experimental program
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Embodiment Construction
[0021] A zero-gap knife-edge manufacturing method for a forming die-cutting die, comprising the following steps:
[0022] (1) Surface rough machining: Roughly process the mold surface on the three-axis machining center, leaving 0.5-1mm machining allowance on one side;
[0023] (2) Processing welding groove at the knife edge: After the rough machining of the profile, use the R4 ball cutter to process the welding groove along the knife edge trajectory. The width of the welding groove is 6-10mm, and the depth is 4-6mm.
[0024] (3) Three-axis CNC machine tool finish machining profile: First, use a three-axis CNC machine tool to finish the bottom surface of the mold, and then finish the profile surface. The knife edge part needs to leave a machining allowance of 0.1-0.2mm on one side, four processes The guide post hole also needs to leave a machining allowance of 0.1~0.2mm on one side;
[0025] (4) Five-axis CNC machine tool finish machining knife edge: use five-axis CNC machine ...
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Abstract
The present invention discloses a manufacturing method for a zero-clearance blade of a molded punching die, which comprises the following procedures such as mold surface rough processing, processing welding slot on a blade part, finishing mold surface by a digital control machine tool, finishing a blade by the digital control machine tool, assembly, shearing the blade, etc. The manufacturing method of the present invention effectively solves the defects of the traditional process to lead the blade clearance of compound die punching to achieve 'zero' standard really and completely, which has the advantages of tight assembly, high blade strength, balanced stress and longer service life. The tangent plane of punched products is clean and tidy without wire drawing.
Description
Technical field: [0001] The invention relates to a method for making a knife edge of a forming punching die. Background technique: [0002] So far, there is no effective control method for the hardness of the punching edge of the thermoforming mold. Usually, the hardness is increased by inserting and welding other materials, and it is completed by manual repair after wire cutting or CNC processing. A skilled fitter usually needs 4 to 6 working days to complete the repair of a pair of knife edges. The mold clamping process is time-consuming and labor-intensive, and the gap between the knife edges is uneven, the finish is not high, and the service life is short. Knife-edge chipping, welding repairs and repeated repairs often occur. The controllability in production is not strong, the efficiency is low, the punching products are dripping endlessly, and the phenomenon of wire drawing is serious. Invention content: [0003] The purpose of the present invention is to provide a ...
Claims
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IPC IPC(8): B23P15/24B21D28/14
Inventor 冯建军
Owner NANTONG CHAODA EQUIP CO LTD