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Drilling jig for drilling deep hole on medium-thickness reinforcement bar in vacuum pump

A technology of stiffeners and vacuum pumps used in drilling/drilling equipment, drilling dies for workpieces, boring/drilling, etc.

Active Publication Date: 2009-03-18
KEHUA HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Guide columns are installed on both sides of the guide frame

Method used

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  • Drilling jig for drilling deep hole on medium-thickness reinforcement bar in vacuum pump
  • Drilling jig for drilling deep hole on medium-thickness reinforcement bar in vacuum pump

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Embodiment Construction

[0011] Such as figure 1 , figure 2 Shown: A drilling template for drilling deep holes on the ribs of the middle wall of the vacuum pump. The guide frame 9 that identical horizontal direction is arranged on both sides of vertical plate 8 is equipped with. Guide post 12 is all housed on both sides guide frame 9. Both sides guide posts 12 are equipped with slide blocks 13 that can move to the left and right sides along the guide posts 12 . V-shaped positioning block 11 is all housed on both sides slide block 13. Cam plate 4 is equipped with at the rear portion of vertical plate 8 . The center of the cam plate 4 has a hole, which is sleeved on the shaft of the pull rod 15 and can rotate on the shaft of the pull rod 15. Both sides of the cam plate 4 are provided with symmetrical Archimedes curve grooves 3 . Two pins 2 are fixed on the V-shaped positioning blocks 11 on both sides and are respectively sleeved in the curved grooves 3 on both sides of the cam plate 4 . Cam plat...

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PUM

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Abstract

The invention provides a drilling die which drills deep holes on a stiffener of internal casting of middle wall of a vacuum pump. Two sides of a vertical plate are respectively provided with a guiding frame; the guiding frame is provided with a guiding column which is provided with a sliding block which is provided with a V-shaped positioning block; the rear part of the vertical plate is provided with a cam plate; the center of the cam plate is sleeved on the shaft of a pulling rod; two sides of the cam plate are provided with a curved slot respectively; two pins are fixed at two V-shaped positioning blocks respectively and are respectively sheathed in the curved slot; the cam plate at one side is provided with a cam plate handle and a spring is arranged between the cam plate at the other side and the vertical plate; the upper part of the vertical plate is provided with a drilling die block and the middle of which is provided with a drilling sleeve; the upper part of the drilling sleeve is provided with a drilling bit; the middle part of the vertical plate is provided with a pulling rod which is provided with a slotted washer and a nut; the drilling die has the advantages that the drilled holes can be ensured to be at the central position of the whole length of the stiffener and not to lead the middle wall of the vacuum pump to be abandoned caused by misaligned drilling or drilling through.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and relates to a drilling mold for drilling deep holes on reinforcing ribs of castings in the inner wall of a vacuum pump. The drilled holes must be kept at the center of the entire length of the reinforcing ribs. Background technique [0002] The middle wall of the vacuum pump is a hollow casting. Inside the middle wall of the vacuum pump, there is a reinforcing rib protruding from the plane along the radial direction. A thin deep hole that is straight down through the middle part bearing hole by the outer ring along the reinforcing rib will be drilled at the central part of the reinforcing rib. It is required that the holes be drilled at the center of the entire length of the rib. The general drilling method is to use the processed bearing hole to locate, and then use the pin to support the side flange to control the angle. However, there is no direct dimensional relationship b...

Claims

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Application Information

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IPC IPC(8): B23B47/28B23B41/02
Inventor 张笑山
Owner KEHUA HLDG
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