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Bench Drill Press with Raising Head and Tilt Table: Brazell, 1997
Kenneth M. Brazell et al. (US Patent 5,634,748) · Public domain (expired patent)
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Bench Drill Press with Raising Head and Tilt Table: Brazell, 1997

Most home drill presses kept the head fixed and moved the work relative to it. Kenneth M. Brazell and colleagues at Ryobi patented the reverse in 1997, US 5,634,748. A cast iron base sits on the work bench, a column rises from it, and the whole drill head, with its motor and quill, is raised and lowered along the column by a crank and a rack, or swung round it. A tilt table made of stamped and folded sheet steel locks to the base with one cam and eyebolt, slides two ways and turns on the base, and tilts to drill holes at an angle. Its replaceable ¾" particle board panel supports the stock underneath, preventing tear-out.
Juu
Factory process

Maagizo

1

Base and column

Cast the base with a collar near its rear end to take the column, a transverse slot with a funnel-shaped entrance at the front for the table's lock, and two keyhole slots whose round ends take standard ½ inch carriage bolts for clamping vices. Fix the column in the collar.

Vifaa kwa hatua hii:

Kitako cha chuma cha kusubu cha kiwima cha kutoboaKitako cha chuma cha kusubu cha kiwima cha kutoboa1 kipande
Nguzo ya mashine ya kutoboaNguzo ya mashine ya kutoboa1 kipande

Zana zinazohitajika:

Upawa wa kusubu chumaUpawa wa kusubu chuma
Spana inayoweza kurekebishwaSpana inayoweza kurekebishwa
2

Rack on a turning cap

Screw the rack to a cap that fits over the top of the column. Two opposite pins in the column ride in an annular slot in the cap, so the cap turns but cannot lift off. The rack runs down most of the column's length.

Vifaa kwa hatua hii:

Upau wa meno wa nguzo wenye kifuniko kinachozungukaUpau wa meno wa nguzo wenye kifuniko kinachozunguka1 kipande

Zana zinazohitajika:

Seti ya bisibisiSeti ya bisibisi
3

Head frame

Make the head frame with a split C-section round the column, two clamping flanges and a slot through which the rack passes. A crank on the frame turns a pinion in the rack to raise and lower the head; a knobbed locking member through the flanges clamps the frame to the column. A spring-loaded indexing pin through a bracket on the rack drops into a bore in the column to lock the head over the centre of the base.

Vifaa kwa hatua hii:

Fremu ya kichwa cha keekee yenye kibano cha nguzo kilichopasuliwaFremu ya kichwa cha keekee yenye kibano cha nguzo kilichopasuliwa1 kipande
Mkono wa kuzungusha na pinioni ya kuinua kichwaMkono wa kuzungusha na pinioni ya kuinua kichwa1 kipande
Pini ya kuweka nafasi yenye springiPini ya kuweka nafasi yenye springi1 kipande

Zana zinazohitajika:

Seti ya bisibisiSeti ya bisibisi
Koleo la Matumizi MengiKoleo la Matumizi Mengi
4

Motor and belt

Mount the motor on a bracket that slides on a clamping rod and a parallel follower rod in a boss on the frame, on the opposite side of the column from the quill. A belt connects the motor to the quill; loosen the lock knob and slide the motor to tension the belt. A cover encloses the drive and its speed-change mechanism, with a clearance opening for the column. The on/off switch, speed control knob and light switch sit on the face of the frame.

Vifaa kwa hatua hii:

Mota ya umemeMota ya umeme1 kipande
Kishikio cha mota kinachotelezaKishikio cha mota kinachoteleza1 kipande
Mkanda wa kuendeshaMkanda wa kuendesha1 kipande

Zana zinazohitajika:

Spana inayoweza kurekebishwaSpana inayoweza kurekebishwa
Seti ya bisibisiSeti ya bisibisi
5

Quill and chuck

Fit the quill in the frame with a hand wheel that moves it up and down, and fit the chuck on its end to take the shanks of drill bits and other tools.

Vifaa kwa hatua hii:

Mkono wa spindo wa mashine ya kutoboa wenye gurudumu la mkono la kusogezaMkono wa spindo wa mashine ya kutoboa wenye gurudumu la mkono la kusogeza1 kipande
Chaki ya keekeeChaki ya keekee1 kipande

Zana zinazohitajika:

Spana inayoweza kurekebishwaSpana inayoweza kurekebishwa
6

Tilt table

Stamp and fold the supporting base from 3.2 mm steel plate, with a flat base, two upright trunnions, side walls, stiffener ribs and a longitudinal slot. Pivot the table frame between the trunnions on its two sector disks, and lay the particle board panel in it. Pass an eyebolt through the slot and the base's transverse slot, with a nylon nut underneath. An eccentric camshaft between the trunnions runs through the eye; turning its crank lifts the eyebolt and clamps the table to the base, and turning it back frees the table to slide or turn.

Vifaa kwa hatua hii:

Kitako cha kutegemeza meza inayoinamaKitako cha kutegemeza meza inayoinama1 kipande
Bamba la chuma lainiBamba la chuma laini1 kipande
Fremu inayozunguka ya meza inayoinamaFremu inayozunguka ya meza inayoinama1 kipande
Bamba la meza la ubao wa vipandeBamba la meza la ubao wa vipande1 kipande
Bolti yenye jichoBolti yenye jicho1 kipande
Nati ya nailoniNati ya nailoni1 kipande
Ekseli ya kamu isiyo katikati ya kufungaEkseli ya kamu isiyo katikati ya kufunga1 kipande

Zana zinazohitajika:

Mkandamizo wa kugonga batiMkandamizo wa kugonga bati
Spana inayoweza kurekebishwaSpana inayoweza kurekebishwa

Vifaa

18

Zana Zinazohitajika

5

Mchoro huu unatengeneza

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