Manufacturing method for double screw and manufacturing program for double screw
A manufacturing method, screw technology, applied in the direction of screws, program control, manufacturing tools, etc.
Inactive Publication Date: 2018-07-31
NEJILAW
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The same is true for female screws with two types of female screw strips with different thread lead angles and / or thread directions. Although the screw strips can also be formed by rolling or pressing, the screws are large in size or special in shape, and use hardness Rolling or pressing methods are not suitable for high materials or low toughness materials, or when the demand is less than a certain amount
Method used
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Embodiment Construction
[0032] Embodiments of the present invention will be described below with reference to the drawings.
[0033] First, an exemplary structure and an exemplary action of a male screw and a female screw that can be manufactured according to a factual aspect of the present invention will be described.
[0034] Figure 6 (A) shows the male screw 60 of the double screw structure. This male screw 60 includes two types of thread groove portions (a right-handed male screw portion and a left-handed male screw portion) formed with different thread directions around the shaft.
[0035] On the male screw 60, the male screw part 53 in which the helical structure of the male screw is formed is arranged from the base to the axial end. In this example, the first male screw thread structure 54 and the second male screw thread structure 55 are repeatedly formed on the same field. Wherein, the first male screw thread structure 54 is formed as a right-handed screw corresponding to the male screw ...
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Provided is a manufacturing method for a double screw having a first thread groove and a second thread groove with a different lead angle or lead direction from the first thread groove. The manufacturing method for a double screw comprises a first thread groove forming step of forming at least a portion of the first thread groove by a first cutting path obtained by feeding a cutting tool, that acts on a workpiece used as a rotating shaft and rotating about a predetermined axis, a first feed amount toward the workpiece in the feeding direction in parallel with the rotating shaft; and a second thread groove forming step of forming at least a portion of the second thread groove by a second cutting path obtained by feeding the cutting tool, that acts on the workpiece, a second feed amount thatdiffers from the first feed amount in the feeding direction in parallel with the rotating shaft. As a result, it is possible to mass produce a double screw having two thread structures of differing lead angles and / or lead directions with a high level of quality.
Description
technical field [0001] The invention relates to the fields of a double screw manufacturing method and the like. Background technique [0002] So-called male screws such as bolts and so-called female screws such as nuts can be used as one of the connecting structures. Among the threaded bodies used for the binding mechanism, the male screw is formed with two kinds of thread grooves with different thread lead angles and / or thread directions (for example, a right male screw part and a left male screw part). And, just like the double nut, there are two female screws (for example, right female screw and left female screw) screwed on the two kinds of thread grooves respectively. If some kind of joining method is used to restrain the relative rotation of the two female screws, the axial direction interference or the axial direction deviation effect caused by the difference of thread lead angle and / or thread direction can prevent the part connected with the male screw from being me...
Claims
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IPC IPC(8): B23G3/00B23Q15/00G05B19/18
CPCB23G3/00B23Q15/00G05B19/18F16B39/30B23G1/00B23G2210/24B23G2210/48F16B2033/025B23G1/32B23G1/02B23G1/48B23G2210/08B23Q15/007G05B19/186G05B2219/49196
Inventor 道胁裕
Owner NEJILAW