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Deep-hole drill bit

A deep hole drill bit and head technology, which is applied in the direction of drilling/drilling equipment, drill repairing, drilling tool accessories, etc., can solve problems such as single structure, difficult maintenance, and increased cost, and achieve quick replacement, convenient disassembly, and improved efficiency effect

Inactive Publication Date: 2012-06-13
成都鑫三洋科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Welded deep hole drills and machined deep hole drills both use the oil feeder to supply coolant and internal chip removal process. They can drill deep holes on solid materials such as carbon steel and alloy steel, and the length-to-diameter ratio can reach 1:100, the existing deep hole drill bit has a single structure and is easy to wear. Once worn out, the entire drill bit needs to be replaced, resulting in increased cost and difficult maintenance

Method used

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Examples

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Embodiment Construction

[0021] see Figure 1 to Figure 2 , shows a specific embodiment of the deep hole drill bit of the present invention.

[0022] The deep hole drill 1 includes a rod body 3 and a head 2. The rod body 3 is a cylinder. The rod body 3 has a helical part forming a chip removal channel, and the helical part includes at least one helical line.

[0023] The helix extends to the back of the head and ends, and the head 2 is a square cylinder (see figure 2 ), the top of which forms a partial spherical body, wherein a slot is formed transversely in the middle of the partial spherical body, the slot is opened along the diagonal of the square cylinder, and a replaceable blade 4 is arranged in the slot, the blade 4 is plate-shaped, the lower end forms a strip shape with a height of t1 to be inserted into the slot, and the upper end forms a triangular blade 5, the entire height of the blade 4 is h1, and the two sides of the triangular blade 5 respectively form cutting edges, preferably Yes, t...

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Abstract

The invention relates to a deep-hole drill bit, comprising a rod and a head, wherein the rod is of a cylinder and is provided with a spire for forming a chip removal passage; the head is a square column, the top of which is formed into a partial round sphere, an open groove is transversely formed in the middle of the partial round sphere along the diagonal line of the square column, and a replaceable blade is arranged in the open groove. The deep-hole drill bit disclosed by the invention has the advantages of simple structure and convenience for operation and maintenance, only a blade part needs to be changed after the deep-hole drill bit is damaged, and the whole drill bit does not need to be changed, such that the cost is reduced.

Description

technical field [0001] The invention relates to a deep hole drill bit. Background technique [0002] Deep hole drills can usually be divided into welded deep hole drills and machined deep hole drills. The deep hole drills all use internal chip removal, while the blades of welded deep hole drills cannot be replaced and are used once. The blades of the machined deep hole drill are interchangeable, the cutter body of the machined deep hole drill can be used permanently, and the blade can be replaced. [0003] Welded deep hole drills and machined deep hole drills both use the oil feeder to supply coolant and internal chip removal process. They can drill deep holes on solid materials such as carbon steel and alloy steel, and the length-to-diameter ratio can reach 1:100, the existing deep hole drill bit has a single structure and is easy to wear. Once worn out, the entire drill bit needs to be replaced, resulting in increased cost and difficult maintenance. [0004] For this rea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/00
Inventor 曾维松
Owner 成都鑫三洋科技发展有限公司
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