Machining method for cutting off hollow workpiece
A processing method and workpiece technology, which are applied in the processing field of cutting hollow workpieces, can solve the problems of increased production cost, time-consuming and material-consuming, etc., and achieve ideal cutting effect.
Inactive Publication Date: 2019-12-10
GUIZHOU AEROSPACE PRECISION PRODS
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Problems solved by technology
[0002] In mechanical processing, it is often encountered to cut hollow and large-diameter workpieces. When cutting such workpieces, the wall thickness of the workpiece is required to be less than the extension length of the cutting knife head, but sometimes it is encountered that the wall thickness is greater than the extension length of the cutting knife head. In the case of cutting the length, for cutting such hollow workpieces, it is generally cut by wire cutting after forming or blanking as a single piece when blanking (in this case, clamping should be considered, and the length of blanking should be lengthened as needed. The equipment removes the excess length to complete), which is time-consuming and material-intensive, and the production cost increases
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[0009] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0010] Embodiments of the invention: see figure 1 and figure 2 , a processing method for cutting a hollow workpiece. Before cutting the hollow workpiece with a cutting knife, first use an inner groove knife to penetrate into the inner hole of the hollow workpiece, and groove the inner groove from the inside to the outside at the cutting part, so that the wall thickness of the cutting part becomes smaller. Thin, so that the groove bottom size of the inner gro...
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The invention discloses a machining method for cutting off a hollow workpiece. According to the method, before a cut-off tool is adopted for cutting off the hollow workpiece, firstly, an inner groovecutter stretches into a hollow workpiece inner hole, an inner groove is turned from inside to outside at the cut-off position, so that the wall thickness of the cut-off position becomes small, and thegroove bottom size of the inner groove is within the range in which the cut-off tool can perform cut-off operation; and finally, the cut-off tool is adopted for cutting off the hollow workpiece at the cut-off position from outside to inside. The sum of the stretch-out length of a tool bit of the cut-off tool and the groove depth of the inner groove is larger than the wall thickness of the hollowworkpiece. According to the machining method, an inner and outer matched cutting method is adopted for the hollow workpiece, the cut-off problem of the hollow workpiece with the wall thickness largerthan the stretch-out length of the tool bit of the cut-off tool is effectively solved, so that the stretch-out length of the tool bit of the cut-off tool can be controlled within a reasonable range, and due to production and application, the cut-off effect of the hollow workpiece is ideal.
Description
technical field [0001] The invention relates to a processing method for cutting a hollow workpiece, belonging to the technical field of mechanical processing. Background technique [0002] In mechanical processing, it is often encountered to cut hollow and large-diameter workpieces. When cutting such workpieces, the wall thickness of the workpiece is required to be less than the extension length of the cutting knife head, but sometimes it is encountered that the wall thickness is greater than the extension length of the cutting knife head. In the case of cutting the length, for cutting such hollow workpieces, it is generally cut by wire cutting after forming or blanking as a single piece when blanking (in this case, clamping should be considered, and the length of blanking should be lengthened as needed. The equipment removes the excess length to complete), which is time-consuming and material-intensive, and the production cost increases. Contents of the invention [0003...
Claims
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IPC IPC(8): B23P13/02
CPCB23P13/02
Inventor 董贵芳冉杰严沛涛牟军
Owner GUIZHOU AEROSPACE PRECISION PRODS