CN203765047U

CN203765047U - Flexible chuck for vertical drill

Info

Publication number: CN203765047U
Application number: CN201420095546.5U
Authority: CN
Inventors: 张小妹
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-03-04
Filing date: 2014-03-04
Publication date: 2014-08-13
Anticipated expiration: 2024-03-04

Abstract

The utility model discloses a flexible drill for a vertical drill, belongs to the field of hardware processing components and mainly aims to solve the problems that as workpieces are clamped manually by the conventional vertical drill, processing errors are caused due to vibration and risks exist. The structure of the flexible drill for the vertical drill structurally comprises a main shaft, a drill bit, a spring shield, a spring, a clamping sleeve, clamping blocks and a guiding sleeve, wherein the drill bit is mounted on the main shaft; the guiding sleeve is positioned at the upper part of the drill bit; the spring is mounted on the guiding sleeve; the spring is coated with the spring shield; the tail end of the spring is pressed at the upper end of the clamping sleeve; the clamping blocks are distributed at the tail end of the clamping sleeve; the upper end of the spring is in contact with the bottom surface of the main shaft; the tail end of the spring is in contact with the upper end surface of the clamping sleeve; a through hole is formed in the upper end surface of the clamping sleeve; the clamping blocks are distributed at the tail end of the clamping sleeve in the circumferential direction; the top end of each clamping block adopts a dome-shaped structure; the tail end of the guiding sleeve is provided with a ring-shaped bulge. According to the flexible drill for the vertical drill, as the clamping structure and the drill bit are integrated, no other clamping device is needed in the drilling operation, the operation is safe and the vibration generated in the drilling area can be effectively reduced; moreover, the manufacturing cost is low and the applicability is wide.

Description

A kind of vertical drilling collet

Technical field

The utility model relates to a kind of vertical drilling collet, belongs to five metals processing accessory field.

Background technology

Vertical drilling is the common tool of current handware mesopore processing, and vertical drilling mainly moves down drill bit by column and then by Workpiece boring.Due to bore process itself, the manual vertical drilling of present more employing, is about to workpiece and is positioned on workbench, by the operation of hand, drill bit is moved down and is holed.Manual operations vertical drilling is convenient and simple, but because workpiece is generally manual clamping, therefore often because vibration causes mismachining tolerance, also has its danger simultaneously.Therefore design and be aly applicable to fixture that vertical hand bores and seem and be necessary very much.

In existing disclosed document, as although CN202668183 < < Simple Vertical drill jig > > can be applied on vertical drilling, but each use all needs to carry out the clamping of workpiece, operates relatively time-consuming.

Utility model content

The utility model adopts manual holding workpiece conventionally for current vertical drilling, often because vibration causes mismachining tolerance, also has its dangerous problem simultaneously, has designed a kind of vertical drilling collet.

The technical scheme in the invention for solving the technical problem is:

This vertical drilling comprises main shaft, drill bit, spring shield, spring, gripping sleeve, clamp, fairlead with collet; Drill bit is arranged on main shaft, and fairlead is positioned at drill bit top, and spring fitting is on fairlead, and spring shield wraps spring, and spring end is pressed in gripping sleeve upper end, gripping sleeve end distribution clamp.

Described spring upper end contacts with main shaft bottom surface, and spring end contacts with gripping sleeve upper surface.

There is through hole described gripping sleeve upper surface, the gripping sleeve end clamp that circumferentially distributes, and clamp top is individual dome-like structures.

Described fairlead end has annular protrusion.

The utility model has the following advantages:

1. the utility model is novel unique, and clamping structure and drill bit are integrated, during drilling operation without extra fixture, handling safety and effectively alleviate the vibration in the region of holing.

2. cost of manufacture is low, and application is wide.

Accompanying drawing explanation

Fig. 1 is the whole profile of the utility model.

Fig. 2 is the utility model overall appearance figure.

In figure: 1 main shaft, 2 drill bits, 3 spring shields, 4 springs, 5 gripping sleeves, 6 clamps, 7 fairleads.

The specific embodiment

As shown in Figure 1, 2: a kind of vertical drilling collet, its structure comprises: main shaft, drill bit, spring shield, spring, gripping sleeve, clamp, fairlead; Drill bit is arranged on main shaft, and fairlead is positioned at drill bit top, and spring fitting is on fairlead, and spring shield wraps spring, and spring end is pressed in gripping sleeve upper end, gripping sleeve end distribution clamp; Spring upper end contacts with main shaft bottom surface, and spring end contacts with gripping sleeve upper surface; There is through hole gripping sleeve upper surface, the gripping sleeve end clamp that circumferentially distributes, and clamp top is individual dome-like structures; Fairlead end has annular protrusion.

During use, vertical drilling is assembled with collet, after workpiece wait holing is positioned on workbench, drill bit is moved down, due to clamp than drill bit more on the lower, therefore before starting boring, clamp first contacts workpiece, by the elastic force of spring, along with moving down of drill bit clamps workpiece, drill bit contact workpiece start boring, raises drill bit after boring afterwards, drill bit leave after workpiece along with on move clamp and also left workpiece, driller's process finishes.

The above, be only the specific embodiment of the present utility model, and in the scope that those of ordinary skill in the art disclose at the utility model, the variation that can expect easily, within all should being encompassed in the protection domain of utility model.

Claims

1. a vertical drilling collet, comprises main shaft, drill bit, spring shield, spring, gripping sleeve, clamp, fairlead; It is characterized in that: drill bit is arranged on main shaft, fairlead is positioned at drill bit top, and spring fitting is on fairlead, and spring shield wraps spring, and spring end is pressed in gripping sleeve upper end, gripping sleeve end distribution clamp.

2. a kind of vertical drilling collet according to claim 1, is characterized in that: spring upper end contacts with main shaft bottom surface, and spring end contacts with gripping sleeve upper surface.

3. a kind of vertical drilling collet according to claim 1, is characterized in that: there is through hole gripping sleeve upper surface, the gripping sleeve end clamp that circumferentially distributes, and clamp top is individual dome-like structures.

4. a kind of vertical drilling collet according to claim 1, is characterized in that: fairlead end has annular protrusion.