Method for drilling central hole of cambered forging

A center hole and center hole technology for forgings, applied in metal processing machinery parts, clamping, support, etc., can solve problems such as difficult to meet requirements, tooling processing errors, large cumulative errors, etc., and achieve high position accuracy and correction margin Appropriate, high-quality processing results

Active Publication Date: 2019-09-27
HENGSHUI ZHONGTIEJIAN CASTING & FORGING
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Problems solved by technology

The traditional blade drilling method is to use the drill rod of the radial drilling machine to drill through the tooling with the same positioning hole as the center hole of the workpiece to drill holes. In addition to equipment errors and operation errors, this method also has machining errors of the tooling , assembly errors, etc., resulting in large cumulative errors, so it is difficult to meet the requirements

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  • Method for drilling central hole of cambered forging

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Embodiment Construction

[0016] The working principle of the method for drilling the central hole of a curved surface forging provided by the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0017] see figure 1 , is a schematic flowchart of a drilling method for a center hole of a curved surface forging provided by the present invention. The drilling method for forming the central hole of the novel curved surface forging comprises the following steps:

[0018] Step 1, determine the theoretical coordinates of the reference hole when drilling the center hole, and calculate the theoretical relative coordinates of all center holes according to the appearance size of the curved surface forging;

[0019] Step 2, after positioning the curved surface forging, detect the actual coordinates of the reference hole, and calculate the coordinate deviation;

[0020] Step 3, the coordinate deviation obtained in step 2 is combined with the theoretical relat...

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Abstract

The invention belongs to the technical field of machining, and particularly relates to a method for drilling a central hole of a cambered forging. The main technical scheme is characterized by comprising the following steps of, determining theoretical coordinates of a reference hole during drilling of a central hole, and calculating theoretical relative coordinates of all central holes according to the external dimension of the cambered forging to be machined; after positioning the cambered forging, detecting actual coordinates of the reference hole, and obtaining coordinate deviations through calculation; obtaining the actual relative coordinates of all the central holes by combining the coordinate deviations with the theoretical relative coordinates of all the central holes; and driving drilling equipment to complete the operation of drilling the central hole according to the actual relative coordinates of all the central holes. The method for drilling central hole of cambered forging has the characteristics that the shape of the cambered forging is not limited, the position precision of the central hole is high, and the central hole distance tolerance is small.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a drilling method for a center hole of a curved surface forging. Background technique [0002] As the forging process matures, forging workpieces become more and more complex. The precise core components of steam turbines, gas turbines, aero engines, blowers and other equipment are all forged. The requirements are high, and it is generally produced by a five-axis CNC machining center. Before processing, it is necessary to drill center holes on both ends of the blank, and the accuracy of the center hole distance is high, and the requirement is ±0.03mm. The traditional blade drilling method is to use the drill rod of the radial drilling machine to drill through the tooling with the same positioning hole as the center hole of the workpiece to drill holes. In addition to equipment errors and operation errors, this method also has machining errors of the tool...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P23/02B23Q3/06
CPCB23P23/02B23Q3/062
Inventor 郭勇何海黄基平田宇邓淋方刘松伟马丽段洪良王磊
Owner HENGSHUI ZHONGTIEJIAN CASTING & FORGING
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