Drilling jig for unitized tooling circumferential and axial bore of electrohydraulic servo valve cover plate

An electro-hydraulic servo valve and combined processing technology, which is applied in the direction of drilling molds for workpieces, can solve the problems of large processing position errors, and achieve the effects of ensuring processing accuracy, simple structure, and good operability

Inactive Publication Date: 2008-05-14
SHANGHAI NUOMA HYDRAULIC SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a drilling mold for the combined processing of circumferential and axial hol

Method used

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  • Drilling jig for unitized tooling circumferential and axial bore of electrohydraulic servo valve cover plate
  • Drilling jig for unitized tooling circumferential and axial bore of electrohydraulic servo valve cover plate

Examples

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Embodiment 1

[0019] As shown in Fig. 1 to Fig. 4, the drilling template for combined processing of the electro-hydraulic servo valve cover plate circumferential and axial holes of the present invention is shown in the figure, which includes a drilling template body (bottom plate), a drilling template and a special-shaped drill sleeve etc., where:

[0020] The described drilling template body (bottom plate) 1 is a rectangular block, and the side is equipped with a drill bushing 6 that is cut into a fan shape, and two positioning pins 5 are installed on the top surface, and its two ends are not matched. The workpiece is placed on the drilling template body 1 The positioning hole positioning;

[0021] A fixed drill bushing 4 is housed on the described drilling template 3, and the whole drilling template assembly is combined with the drilling template body 1 through the positioning pin shaft 5 and the hexagon socket head cap screw 2 and compresses the workpiece.

[0022] As shown in Figure 5,...

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PUM

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Abstract

The invention discloses a drill jig used for circumferential and axial hole combination processing of a cover plate of an electrohydraulic servo valve, which comprises a drill jig body (1), a drill jig plate (3), a fixed drill bush (4) and a special drill bush (6); wherein, the drill jig body (1) is rectangular and the drill jig plate (3) is arranged at the top; the fixed drill bush (4) is arranged on the drill jig plate (3); the special drill bush (6) is arranged at lateral face of the drill jig body (1); a plurality of workpieces arranged between the drill jig body (1) and the drill jig plate (3) are fixed and pressed with a screw (2) and a locating pin (6). The invention has the advantages of simple structure, low manufacturing cost, good manipulability, long service life, assured processing precision, improved processing efficiency and uneasy damage.

Description

technical field [0001] The invention relates to a drilling mold for processing an electro-hydraulic servo valve cover plate, in particular to a drilling mold for combined processing of circumferential and axial holes of an electro-hydraulic servo valve cover plate. Background technique [0002] At present, the hole processing of the cover plate parts of the electro-hydraulic servo valve used in the electro-hydraulic control system has the following defects: [0003] Existing processing method: the workpiece is positioned and clamped with the end surface perpendicular to the workbench on the vertical lifting table milling machine, and the circumferential hole is drilled after the hole position is found by the digital display device; then re-clamped (with the end surface parallel In the workbench mode), find out the holes one by one, and drill out the end face holes. During the machining process of the entire hole system, the workpiece needs to be clamped twice and aligned mu...

Claims

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Application Information

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IPC IPC(8): B23B47/28
Inventor 曹勇黄碧峰黄周成
Owner SHANGHAI NUOMA HYDRAULIC SYST
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