CN202278624U

CN202278624U - Drilling head

Info

Publication number: CN202278624U
Application number: CN2011203495135U
Authority: CN
Inventors: 徐志义
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-17
Filing date: 2011-09-17
Publication date: 2012-06-20
Anticipated expiration: 2021-09-17

Abstract

The utility model relates to the field of drilling heads and discloses a multi-axis drilling head. The drilling head disclosed by the utility model comprises a shaft, a first bearing, spacer bushes, a second bearing, a gear wheel and a gasket, wherein the spacer brushes are respectively positioned between the first bearing and the shaft as well as between the second bearing and the shaft; the gear wheel is arranged below the second bearing; the top surface of the second bearing is provided with the gasket; and the shaft respectively penetrates through centers of the first bearing, the space bushes, the second bearing, the gear wheel and the gasket. The drilling head disclosed by the utility model has the characteristics of long service life and low noise.

Description

Drill head

Technical field

The utility model relates to the drill head field, relates in particular to a kind of multi-spindle drilling head.

Background technology

Continuous expansion along with furniture market; The woodwork manufacturing industry is also corresponding obtain flourish; Carpenter's multiple borer is used in the producer that produces the furniture woodwork in order to satisfy ever-increasing demand widely, has promoted the efficient of processing; Then accelerate the speed that furniture is produced, thereby also just satisfied existing consumer demand.But because the core position of carpenter's multiple borer is a drill head, the wearing and tearing that in the process of using, receive are maximum; And what existing drill head adopted is the metal (upper structure, and mate gear realizes that multiaxis rotates, and between metal (upper, uses jump ring and spacer to support each other; The face of jump ring and the face of spacer are parallel to each other, and the flatness error of said jump ring requires very high, and be just too high for the production requirement of jump ring like this; And the distance between two jump rings is just the same with the length of spacer, and is just very high to the required precision of assembling like this, but in the process of producing jump ring and spacer; Be easy to generate deviation again, be difficult to reach requirement, dead eye position tight fit; Be easy to produce decentraction in the metal (upper installation process, will have influence on the service life of drill head like this, and in the process of using, can produce very big noise.

Summary of the invention

First purpose of the utility model embodiment is: a kind of drill head is provided, has long service life, characteristics that noise is little.Concrete technical scheme is following:

A kind of drill head that the utility model embodiment provides comprises axle, clutch shaft bearing, spacer, second bearing, gear and pad; Said spacer lays respectively between said clutch shaft bearing and said axle and second bearing and the said axle; Said second bearing below is provided with gear; The end face of said second bearing is equipped with said pad, and said axle runs through the center of said clutch shaft bearing, spacer, second bearing, gear and pad respectively.

Optional, the thin rounded flakes of said pad undulate.

Therefore the technical scheme of application the utility model embodiment is at the end face increase pad of said second bearing; Because said pad can produce certain elastic force, when said clutch shaft bearing and second bearing under said pad effect, bearing is the adjustment concentricity automatically; Can also suitably adjust the bearing orientation; Reduce because the noise that the bearing decentraction produces also can reduce the vibration noise that produces in the gear drive, two bearings also can reduce bearing self vibration under certain responsive to axial force.And the required precision to pad is not high yet, produces can reach fully, finally just makes the life-span of drill head prolong yet.

Description of drawings

Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the application's a part, does not constitute the improper qualification to the utility model, in the accompanying drawings:

The front section view of a kind of drill head that Fig. 1 provides for the utility model embodiment.

The specific embodiment

To combine accompanying drawing and specific embodiment to specify the utility model below, be used for explaining the utility model in the illustrative examples and the explanation of this utility model, but not as the qualification to the utility model.

Embodiment:

As shown in Figure 1, the described drill head of the utility model comprises axle 1, clutch shaft bearing 2, second bearing 3, spacer (not drawing among the figure), gear 4 and pad 5.Said spacer lays respectively between said clutch shaft bearing 2 and said axle 1 and second bearing 3 and the said axle 1; Said second bearing 3 belows are provided with gear 4; Said pad 5 is installed on the end face of said second bearing 3; Said clutch shaft bearing 2, second bearing 3, spacer, pad 5 and gear 4 all are the ring-type of hollow, and then said axle 1 runs through the center of said clutch shaft bearing 2, second bearing 3, spacer, pad 5 and gear 4 respectively.

Said pad 5 is that precompressed produces certain elastic force between two objects, is commonly used to adjust axial force and bearing outer ring stop between two bearings.Equally; In the described drill head of present embodiment, said pad 5 is positioned at the end face of second bearing 3, and the bearing of existing drill head is installed between the jump ring; It is smooth fully that but the double-edged precision of jump ring can not reach; The distance that will cause being positioned at two jump ring spares between metal (upper like this can not be in full accord with the length of said spacer, and is meanwhile, also very high to the matching requirements of said jump ring.In case the precision of said jump ring and spacer assembling is good inadequately, then has influence on moving axially of metal (upper, finally causes shorten the service life of said drill head, and obvious noise can occur.The said clutch shaft bearing 2 and second bearing 3 change matched in clearance into, after the end face of second bearing 3 is installed pad 5, because said pad 5 prevents to become flexible, cushions and hit; Performance with elasticity and absorbed oscillation; Then to the corresponding reduction of spacer length requirement, simultaneously, the matching requirements of said pad 5 and spacer are also reduced relatively; In use; Said clutch shaft bearing 2 and said second bearing, 3 axially movable phenomenons then can not occur, and greatly reduce noise yet, the final then life-span prolongation of the said drill head that makes.In addition, said pad 5 undulates prevent to become flexible, cushion and hit, and the performance of elasticity and absorbed oscillation is better, and the effect that then plays is also better.

Need to prove; The described drill head of the utility model, being applicable to has the field of using said pad 5 in the industry-by-industry, be not limited in the multi-spindle drilling head in the woodworking; Also be not limited in its size dimension, the main body that its size dimension carries along with said drill head changes.

More than technical scheme that the utility model embodiment is provided carried out detailed introduction; Used concrete example among this paper principle and the embodiment of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on the specific embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.

Claims

1. drill head is characterized in that:

Comprise axle, clutch shaft bearing, spacer, second bearing, gear and pad;

Said spacer is between said clutch shaft bearing and said axle and second bearing and said axle; Said second bearing below is provided with gear; The end face of said second bearing is equipped with said pad, and said axle runs through the center of said clutch shaft bearing, spacer, second bearing, gear and pad respectively.

2. drill head according to claim 1 is characterized in that:

The thin rounded flakes of said pad undulate.