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Straight flute step drill

A step drill and straight groove technology, which is applied in the direction of step drill, drill repair, drilling tool accessories, etc. It can solve the problems of easy wear on the top, influence of step drill use, and insufficient connection of step drill, so as to achieve stable connection and avoid wear Effect

Inactive Publication Date: 2019-10-18
YANGZHOU JIANGYU TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the production of mechanical processing, it is often necessary to dig various types of stepped hole structures on the workpiece to be processed. In order to meet the needs of this type of processing, the current step drill is mainly used for drilling processing. In the process of use, many When the step drill is used, the top is easy to wear, especially when it is used repeatedly, which affects the use of the step drill, and some step drills are not connected firmly enough, which affects the connection stability of the step drill

Method used

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  • Straight flute step drill
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  • Straight flute step drill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A straight groove step drill, provided with a drill handle 1, a drill bit 2 is arranged on one side of the drill handle 1, a sheath 3 is arranged on the drill bit 2, and a The movable rubber sleeve 4 is provided with a connecting rod 5 on the drill shank 1 , and a fixed chute 6 is arranged on the connecting rod 5 , and a top brace 7 is arranged in the fixed chute 6 .

[0015] The top support piece 7 is a circular sheet, and a compression spring 8 is arranged on the rear side of the top support piece 7 .

[0016] Both sides of the drill shank 1 are provided with vertical plates 9 , and a movable pressing groove 9 is provided between the vertical plate 9 and the drill shank 1 .

[0017] A flexible rubber block 10 is arranged inside the movable pressing groove 9 , and a lattice baffle 11 is arranged outside the flexible rubber block 10 .

Embodiment 2

[0019] A straight groove step drill, provided with a drill handle 1, a drill bit 2 is arranged on one side of the drill handle 1, a sheath 3 is arranged on the drill bit 2, and a The movable rubber sleeve 4 is provided with a connecting rod 5 on the drill shank 1 , and a fixed chute 6 is arranged on the connecting rod 5 , and a top brace 7 is arranged in the fixed chute 6 .

[0020] The top support piece 7 is a circular sheet, and a compression spring 8 is arranged on the rear side of the top support piece 7 .

[0021] Both sides of the drill shank 1 are provided with vertical plates 9 , and a movable pressing groove 9 is provided between the vertical plate 9 and the drill shank 1 .

[0022] A flexible rubber block 10 is arranged inside the movable pressing groove 9 , and a lattice baffle 11 is arranged outside the flexible rubber block 10 .

[0023] Both sides of the flexible rubber block 10 are provided with lifting ropes 12, and the lifting ropes 12 are stainless steel thi...

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Abstract

The invention relates to a straight flute step drill which is provided with a drill handle. A drill bit is arranged on one side of the drill handle; a protecting sleeve is arranged on the drill bit; amovable rubber sleeve is arranged between the protecting sleeve and the drill bit; a connecting rod is arranged on the drill handle; a fixed sliding chute is arranged on the connecting rod; and a topbracing piece is arranged in the fixed sliding chute. The protecting sleeve is arranged on the drill bit of the step drill, so that the drill bit of the step drill can be protected when the step drill is not in use and is prevented from being worn; and the fixed sliding chute is arranged on the connecting rod, and the top bracing piece is arranged in the fixed sliding chute, so that the connection of the step drill is stable.

Description

technical field [0001] The invention relates to a drill bit, in particular to a straight groove stepped drill. Background technique [0002] At present, in the production of mechanical processing, it is often necessary to dig various types of stepped hole structures on the workpiece to be processed. In order to meet the needs of this type of processing, the current step drill is mainly used for drilling processing. In the process of use, many When the step drill is used, the top is easy to wear, especially when it is used repeatedly, which affects the use of the step drill, and some step drills are not connected firmly enough, which affects the connection stability of the step drill. Contents of the invention [0003] The purpose of the present invention is to provide a straight groove step drill with simple structure and stable connection. [0004] The technical solution of the present invention is: a straight groove step drill, provided with a drill handle, a drill bit ...

Claims

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Application Information

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IPC IPC(8): B23B51/00B23B51/12
CPCB23B51/009B23B51/12
Inventor 董向阳杨艳
Owner YANGZHOU JIANGYU TOOLS