CN2753547Y

CN2753547Y - Electric woodmilling machine

Info

Publication number: CN2753547Y
Application number: CNU2004201088878U
Authority: CN
Inventors: 桑树华
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2004-11-15
Filing date: 2004-11-15
Publication date: 2006-01-25
Anticipated expiration: 2014-11-15
Also published as: EP1813370A1; EP1813370A4; EP1813370B1; ES2405284T3; WO2006050653A1

Abstract

The utility model discloses a bakelite mill with a digital display device. A sensing element which is arranged on a depth setting ruler of the bakelite mill moves relatively to a shell body which is provided with a sensing element, and the sensing elements transfer displacement signals to the digital display device for display. The utility model directly displays the displacement of the depth setting ruler relative to a machine shell through the digital display device, and errors generated by artificial reading are reduced.

Description

Bakelite mills

Technical field

The utility model relates to a kind of bakelite that has numeric display unit and mills.

Background technology

At present, bakelite mills main the adopt scale bar of machinery and the control that the rule combination realizes depth of cut.U.S. Pat 4,272,821 disclose a kind of bakelite mills, adopt position coder to link to each other with the depth of cut adjusting device, provide cutting tool with the displacement of housing to microprocessor with respect to base, directly show depth of cut by numeric display unit, when housing moves with respect to base, reflect that in real time the bakelite milling cuts the depth of cut of instrument.This bakelite mills when carrying out depth adjustment, lacks necessary location structure, can only earlier depth of cut be regulated finish again and cut, and cutting tool protrudes in working face and can not carry out and be absorbed in the formula cutting operation.U.S. Pat 5,191,921 disclose a kind of formula bakelite that is absorbed in mills, by the depthkeeping chi is arranged on predetermined depth of cut, the elastic force that overcomes elastic mechanism is simultaneously pushed housing makes cutting tool reach the predetermined cuts degree of depth of being determined by the depthkeeping chi, and bakelite mills by the sliding shoe indication and showing the depth of cut value on the corresponding rule on the housing.The operator reads the measured value of the scale acquisition depth of cut on the rule, has the error of artificial reading, can't obtain higher milling precision.

Summary of the invention

For overcoming the above-mentioned defective of prior art, the utility model provides a kind of bakelite that has numeric display unit that is absorbed in the formula cutting operation of can carrying out to mill.

The purpose of this utility model is achieved in that a kind of bakelite mills, comprise motor-driven working head, the housing that holds motor, the base plate that links to each other with housing and be arranged on the depthkeeping chi that can move along direction on the housing perpendicular to base plate, it is characterized in that: described depthkeeping chi is provided with first sensing element, described housing is provided with second sensing element towards first sensing element, and described bakelite mills and also comprises the numeric display unit that links to each other with one of second sensing element with first sensing element; Described bakelite mills the depth adjustment mechanism that comprises that also driving depthkeeping chi moves; Described depth adjustment structure comprises operation knob, the gear that links to each other with operation knob, and by the tooth bar that links to each other with the depthkeeping chi of gear drive; Described bakelite mills and also comprises and be arranged on the lock-screw that the depthkeeping chi can be fixed on the housing on the preposition.

Compared with prior art, the beneficial effects of the utility model are: the depthkeeping chi can move with respect to housing, sensing element passes to numeric display unit with displacement signal, numeric display unit directly shows displacement, accurately locating the back bakelite by the depthkeeping chi mills to carry out and is absorbed in formula operation, the error of having avoided artificial reading to produce can reach good milling precision.

Description of drawings

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Fig. 1 is a front view of the present utility model.

Fig. 2 is the side partial sectional view of Fig. 1.

Fig. 3 is the partial enlarged drawing of Fig. 2.

Wherein: 1, working head; 2, housing; 3, base plate; 4, depthkeeping chi; 5, numeric display unit; 6, lock screw; 7, limited block; 8, governor motion; 9, guide pillar; 10, first sensing element; 11, second sensing element; 12, handle; 13, operation knob; 14, gear; 15, tooth bar; 16, hook knob; 20, bakelite mills.

The specific embodiment

Referring to accompanying drawing 1, preferred embodiment of the present utility model is that bakelite mills 20, comprise the working head 1 that drives by motor (not drawing among the figure), the housing 2 that holds motor, link to each other two operating grips 12 that link to each other with housing 2, depthkeeping chi 4 with respect to housing 2 vertically disposed base plates 3 with housing 2 by two parallel guide pillars 9, limited block 7, governor motion 8 and numeric display unit 5.Wherein, limited block 7 is arranged on base plate 3 on the surface of depthkeeping chi 4.Numeric display unit 5 comprises display element 51, starting switch 52, reset switch 53 is arranged on display element 51 belows and is used for demonstration numerical value is made as zero, and switching button 54 is arranged on display element 51 belows are used for selecting to show numerical value between the English system and the metric system unit.

Referring to accompanying drawing 2 and accompanying drawing 3, bakelite mills 20 depth adjustment structure 8 and is arranged on the housing 2, comprises operation knob 13, gear 14 that links to each other with operation knob 13 and the tooth bar 15 that is driven and linked to each other with the depthkeeping chi by gear 14.Rotating operation knob 13, gear 14 rotates, and can move up and down along the direction perpendicular to base plate 3 with the tooth bar 15 of the elongation of gear 14 engagements, regulates depthkeeping chi 4 thus with respect to the distance between the limited block 7 that is provided with on the base plate 3.Depth adjustment mechanism 8 can also adopt the worm and gear structure, perhaps other known depth adjustment mechanisms such as screw-nut structure.Depthkeeping chi 4 is connected with tooth bar 15, and first sensing element 10 is arranged on the depthkeeping chi 4 and moves along the direction perpendicular to base plate 3 with depthkeeping chi 4.Numeric display unit 5 is arranged on the housing 2, and forms certain spatial accommodation between the housing 2.Depthkeeping chi 4 stretches in the spatial accommodation between numeric display unit 5 and the housing 2.Numeric display unit 5 also can be arranged on bakelite and mill on any position that is easy to reading of 20, is not limited only on the position relative with depthkeeping chi 4.Numeric display unit 5 can link to each other with first sensing element 10, also can link to each other with second sensing element 11, first sensing element 10 can move with respect to second sensing element 11, and the displacement signal of generation passes to numeric display unit 5 backs and shown by display element 51.Second sensing element 11 is arranged on the housing 2 towards first sensing element 10.In this preferred embodiment, second sensing element 11 is arranged on the side of numeric display unit 5 towards depthkeeping chi 4.Lock-screw 6 is arranged on the housing 2, and rotational lock screw 6 can be fixed on depthkeeping chi 4 preposition.Hook knob 16 is arranged on the housing 2, and twist-lock knob 16 can be fixed on housing 2 on the preposition with respect to base plate 3.First sensing element 10 and second sensing element 11 can be to hold grid, also can be potentiometer or other known optical sensor elements.

When using bakelite to mill, the operator is placed on base plate 3 lower surfaces that bakelite mills above the workpiece, grip two operating grips 12 and overcome spring force and push housing 2 downwards, the cutting tool of installing on working head 1 contacts with workpiece surface, and rotation lock knob 16 is fixed housing 2.Rotating operation knob 13 gear 14 is rotated, and then drive tooth bar 15 moves.Tooth bar 15 links to each other with depthkeeping chi 4, depthkeeping chi 4 can move for housing 2 with the mobile phase of tooth bar 15, when depthkeeping chi 4 contacts near the limited block 7 that is provided with on an end of base plates 3 and the base plate 3, and release locking knob 16, release handle 12 then, make housing 2 automatically revert to initial position.Press the start button 52 of numeric display unit 5, numeric display unit 5 is started, press the reset switch 53 in the numeric display unit 5, the reading that makes display element 51 in the numeric display unit 5 is zero.Operation governor motion 8, rotating operation knob 13 makes depthkeeping chi 4 move with respect to housing 2, and when display element 51 readings were the depth of cut of being scheduled to, rotation lock screw 6 was locked in a preposition with depthkeeping chi 4.Operator grasps handle 12 is pushed housing 2 and is moved when an end of depthkeeping chi 4 close base plates 3 contacts with limited block 7 towards base plate 3, and the cutting tool of installing on the working head 1 has promptly reached predetermined cutting position.When needs are processed step trough on former depth of cut basis, numeric display unit 5 zero clearings can be resetted, the reading that makes display element 51 is zero, directly regulate operation knob 13 then, the reading that makes display element 51 is that the height value of step trough is operated, perhaps directly regulate operation knob 13, the height value that makes the reading of display element 51 increase step trough on former reading basis is operated.

Claims

1. a bakelite mills (20), comprise motor-driven working head (1), the housing (2) that holds motor, the base plate (3) that links to each other with housing (2) and be arranged on the depthkeeping chi (4) that can move along direction on the housing (2) perpendicular to base plate, it is characterized in that: described depthkeeping chi (4) is provided with first sensing element (10), described housing (2) is provided with second sensing element (11) towards first sensing element (10), and described bakelite mills (20) and also comprises the numeric display unit (5) that links to each other with one of second sensing element (11) with first sensing element (10).

2. bakelite according to claim 1 mills (20), it is characterized in that: it also comprises the depth adjustment mechanism (8) that driving depthkeeping chi (4) moves.

3. bakelite according to claim 2 mills (20), it is characterized in that: described depth adjustment structure (8) comprises operation knob (13), the gear (14) that links to each other with operation knob (13), and the tooth bar (15) that links to each other with depthkeeping chi (4) that drives by gear (14).

4. bakelite according to claim 1 mills (20), it is characterized in that: it also comprises and is arranged on the lock-screw (6) that depthkeeping chi (4) can be fixed on the housing (2) on the preposition.