CN2074220U - Multi-purpose portable electric drill - Google Patents

Abstract

The utility model relates to a multi-purpose portable electric drill, which is provided with a shell, a motor, a spline shaft, a taper handle, a drill clip, a main shaft with a rack bar, a gear, a small shaft and a handle. The utility model is characterized in that one end of the drill clip is arranged on the shell, a clamping disk, a connector used for the clamping disk and the shell which are sheathed on the shell are connected into integration, and the center of the clamping disk is coincident with the center of the drill clip. Compared with an electric hand drill, the utility model has the functions of the electric hand drill, can process center holes and end holes on shaft-like components, particularly a shaft and a long shaft, and can automatically fix the center, without conveying big components which are processed. The utility model is not limited by fields, and is widely applied to the mechanical processing industry, with the advantages of high speed, low cost and safety.

Description

Multi-purpose portable electric drill

The utility model belongs to the electric tool class.

At present the electric hand drill purposes used always of people has certain limitation, can only be used for boring some common holes, and to axle class part macro-axis particularly in addition, the centre bore of major axis, stomidium can't be processed, and often leans against on the boring machine or finishes this procedure on the special purpose machine tool.

The function that the purpose of this utility model provides a kind of existing common electric drill again can to the axle class in addition part particularly macro-axis, major axis carry out machining center hole, stomidium.

The utility model is achieved like this a: end of dress drill point on the housing of common electric hand drill, load onto three-jaw or chuck (intermediate throughholes is to allow drill point pass through) with intermediate throughholes, chuck is dressed up one with connector and housing, and the center of chuck is to overlap with the center of drill point.

Advantage of the present utility model: volume is little, in light weight, compare the function that both has electric hand drill with electric hand drill, again can be to axle class particularly macro-axis, major axis machining center hole, stomidium of part in addition, and self-centering, to compare with boring machine or special purpose machine tool, it does not need to move work piece, be not subjected to the restriction in place, speed is fast, cost is low, safe and reliable.

Elaborate below in conjunction with accompanying drawing:

Fig. 1 is a cutaway view of the present utility model;

Fig. 2 is an A-A cutaway view of the present utility model.

Fig. 1, Fig. 2,1-taper shank, 2-end cap, 3-felt, the 4-bolt, 5-bullet pad, 6-housing, 7-support, the 8-bearing, 9-main shaft, 10-spline housing, 11-bullet pad, 12-garden nut, 13-key, 14-splined shaft, 15-nut, 16-bullet pad, 17-bolt, 18-motor, 19-screw, the 20-stifle, 21-bearing, the little axle of 22-, 23-key, the 24-gear, 25-cover, 26-felt, the logical lid of 27-, 28-rocking handle bearing, 29-bullet pad, 30-primary nut, 31-bullet pad, the 32-handle, 33-chuck, 34-bolt, 35-bullet pad, the 36-key, 37-drill point, 38-drill bit, 39-claw.

Embodiment: taper shank 1, end cap 2, support 7, main shaft 9, spline housing 10, splined shaft 14, stifle 20, little axle 22, gear 24, key 23, cover 25 leads to and covers 27 primary nuts 30, handle 32, key 36 metalworkings form; Body 6, rocking handle bearing 28 casting golds process, all the other part outsourcings.Support 7 is contained on the motor 18, body 6 is contained on the support 7, splined shaft 14, spline housing 10, two bearings 6, bullet pad 11, garden nut 12, felt 3, end cap 2, main shafts 9, be assembled into one, be contained on the axle of motor 18, taper shank 1 drill point 37 drill bits 38 are assembled into one, be contained on the spline housing 10, three-jaw or chuck 33 are contained on the housing 6; Install key 23, axle 22, gear 24,25, two bearings 21 of cover, lid 20, felt 26, logically cover 27, rocking handle bearing 28, bullet pad 29, primary nut 30, bullet pad 31, handle 32, and guarantee that the gear 24 and the tooth bar of main shaft 9 evenly mesh, by pulling of handle 32, the tooth bar that makes gear 24 stir main shaft 9 moves, and spline housing 10 is slided freely on splined shaft 14.

Operation principle of the present utility model is: connect power supply, the main axis rotation of motor 18 drives splined shaft 14 spline housings 10 taper shanks 1 drill point 37 drill bits 38 and rotates together, the function that promptly has common electric hand drill, three-jaw or chuck block shaft-like workpiece and self-centering (three-jaw or the same static state that only is in of chuck function on three-jaw or chuck 33 and the lathe), pull handle 32, the tooth bar that makes gear 24 stir main shaft 9 is done side-to-side movement, at this moment spline housing 10 not only rotates but also do to make sliding motion with the direction of pulling of handle 32 with the main shaft of motor 18, taper shank 1, drill point 37 is with the motion campaign of spline housing 10, and the direction that drill bit 38 is pulled to workpiece with handle 32 is worked.

Claims (1)

1. A kind of portable type is used electric drill more, has the splined shaft that housing, motor link to each other with electric machine main shaft, the taper shank that links to each other with splined shaft, drill point, and make splined shaft make the main shaft of the band tooth bar move both vertically, the gear of transmission main shaft, little axle and handle, it is characterized in that: the end that drill point is housed on housing also is equipped with a three-jaw or chuck, and chuck has intermediate throughholes to allow drill point pass through, and be to be one with the connector of bolt class and housing dress, the center of chuck overlaps with the drill point center.

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