Reverse reaming countersink inner end face knife

An inner face, reaming technology, applied in the direction of reamer, reaming device, drilling/drilling equipment, etc., can solve problems such as difficulty, runout tolerance, etc., to reduce processes, improve processing efficiency, and ensure processing size and position. The effect of tolerance

Inactive Publication Date: 2010-02-10
陈焕春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to design a high-precision fixture to ensure the runout tolerance of the processed large hole and the inner end surface and the conduit hole.

Method used

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  • Reverse reaming countersink inner end face knife

Examples

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Effect test

Embodiment Construction

[0013] The accompanying drawing is the reverse reaming countersink inner end face cutter used for processing the cylinder head of 16V240 diesel engine on the vertical power head. In the accompanying drawings, the tool taper shank on the tool bar is installed in the taper hole of the power head main shaft (1), the external thread of the fixed sleeve (2) on the tool bar is installed in the screw hole of the main shaft (1), and the fixed sleeve ( 2) The inner end face of the tool is pressed on the shoulder of the cylinder below the tool taper handle; the reamed spot facing inner end face knife is installed on the cone at the lower end of the tool bar through its taper hole and connected by a key (12), and is connected with a locking handle ( 8) Fixed, the reaming countersinking inner end face knife has a positioning structure to control the depth of the reaming hole countersinking inner end face; there is a small hole (conduit hole) processed with the part (13) (cylinder head) on ...

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Abstract

The invention discloses a reverse reaming countersink inner end face knife. A knife rod is directly fixed on a power head main shaft; and the reaming countersink inner end face knife is installed on acone at the lower end of the knife rod, is provided with keyed joint, and is fixed by a lock handle. The reaming countersink inner end face knife is provided with a location structure for controllingthe depth of the reaming countersink inner end face. A guide part one the knife rod enters into the proper position in the machined small hole, and is provided with the reaming countersink inner endface knife. A reverse feed knife machines a rough machined large hole and an inner end face. The reverse reaming countersink inner end face knife has the following advantages in that the fine machining of the large hole and the inner end face under the small hole of spare parts are completed when machining the small hole, thereby guaranteeing the machining size and position error of the spare parts, reducing one work procedure, and improving machining efficiency.

Description

technical field [0001] The invention relates to a machining tool for mechanical parts, especially a reverse reaming countersink inner end face tool. Background technique [0002] When processing small holes on some mechanical parts, there is a large hole with a larger diameter below the small hole, and the large hole and its inner end face have higher requirements for the runout tolerance of the small hole. For example, under the conduit hole of the 16V240 cylinder head, there are large holes and inner end faces with higher runout tolerance requirements. Because there is a valve seat hole with higher requirements on the conduit hole, the valve seat hole can only be processed from the top first, and then the conduit hole can be processed. The large hole and inner end face below the conduit hole are machined in another process. It is difficult to design a high-precision fixture to ensure the runout tolerance of the processed large hole and the inner end surface and the condu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/12B23D77/00B23B51/00
Inventor 陈焕春
Owner 陈焕春
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