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Hole saw and equipment for trepanning

A hole saw and equipment technology, applied in drilling/drilling equipment, metal sawing equipment, stone processing equipment, etc. High efficiency, long life and wide application range

Pending Publication Date: 2020-03-10
BOSCH POWER TOOLS CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing hole saws have the problem of serious burning of the teeth when drilling holes in materials such as wood, and the problem of severe wear and tear of the teeth when drilling materials such as metals, resulting in limited service life. , and the existing hole saws still have problems such as difficulty in discharging cutting

Method used

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  • Hole saw and equipment for trepanning
  • Hole saw and equipment for trepanning
  • Hole saw and equipment for trepanning

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Embodiment Construction

[0024] The present application generally relates to apparatus for drilling holes having a hole saw coupled thereto, particularly portable power tools or bench drills, including power drills and hammer drills, among others.

[0025] Some embodiments of the present application are now described with reference to the accompanying drawings.

[0026] Figure 1-Figure 3 A hole saw 100 having an axis A according to a specific embodiment of the present application is schematically shown. The hole saw 100 includes a cylindrical body 120 and teeth 110 disposed on a peripheral edge of one end of the body 120 .

[0027] Figure 4 show figure 1 A top view of the deployed state of the hole saw 100 is shown in . Figure 6 It is a schematic plan view of two adjacent knife teeth 1124, 1126 according to a possible implementation manner of the present application. see Figure 4 and Figure 6 , the hole saw 100 includes a plurality of teeth 110 . Included in these teeth 110 are internally...

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Abstract

The invention provides a hole saw and equipment for trepanning. The hole saw (100) is provided with an axis (A). The saw hole (100) comprises a cylindrical body (120) and a plurality of cutter teeth (110) arranged at the circumferential edge of the body (120), wherein the cutter teeth (110) comprise inner branch teeth (1121, 1125) biased toward the axis (A), outer branch teeth (1122, 1124) biasedaway from the axis (A) and straight teeth (1123, 1126) which are not biased. As for over 80% of the cutter teeth among the cutter teeth (110), the ratio of the tooth depth (H) of the cutter tooth andthe tooth pitch (P) between the cutter tooth and the previous cutter tooth is ranged from 30% to 60%.

Description

technical field [0001] The present application relates to a hole saw and a device with such a hole saw. Background technique [0002] A hole saw, also known as a hole saw, is a common cutting tool for processing circular holes in modern industry or engineering. Hole saws are usually installed on portable electric tools, and are widely used because of their advantages such as simple and flexible operation and easy portability. [0003] Hole saws are used to create round holes in materials such as wood, plastic, metal, and fiberglass. Existing hole saws generally include a cylindrical body and knife teeth evenly distributed on the peripheral edge of one end of the body. Existing hole saws have the problem of serious burning of the teeth when drilling holes in materials such as wood, and the problem of severe wear and tear of the teeth when drilling materials such as metals, resulting in limited service life. , and the existing hole saws also have problems such as being diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D57/00B23D61/00B23B51/04
CPCB23D57/00B23D61/00B23B51/04B23D61/021B28D1/041
Inventor 贾宝帅
Owner BOSCH POWER TOOLS CHINA