CN201405404Y

CN201405404Y - Woodwork hole drilling device

Info

Publication number: CN201405404Y
Application number: CN200920071347XU
Authority: CN
Inventors: 杨岚
Original assignee: SHANGHAI CAT PRECISION MACHINERY CO Ltd
Current assignee: SHANGHAI CAT PRECISION MACHINERY CO Ltd
Priority date: 2009-04-29
Filing date: 2009-04-29
Publication date: 2010-02-17
Anticipated expiration: 2019-04-29

Abstract

The utility model discloses a woodwork hole drilling device which comprises an outer shell, a central rotation shaft and a drill bit, wherein a sealing cylinder is arranged in the outer shell, air inlet holes are respectively arranged on the upper end and the lower end of a piston and are connected with the cylinder, the central rotation shaft comprises a mandrel and a pushing rod which slides along the mandrel, the drill bit is fixed on the pushing rod, and the pushing rod is connected on the piston. The sealing cylinder and the piston in the outer shell, and the two air inlet holes on the upper portion and the lower portion of the piston form a two-way cylinder together. The piston can be driven to move through inputting air into different air inlet holes to realize that the drill bit can move back and forth upwards and downwards. The central rotation shaft is segmented, and the mandrel can move corresponding to a hollow cavity of the pushing rod to realize extension and contractionof the drill bit.

Description

The carpenter aperture apparatus

Technical field

The utility model belongs to the timber processing equipment, relates in particular to a kind of carpenter aperture apparatus.

Background technology

The carpenter aperture apparatus is used for timber is carried out perforation processing, and drill bit must rotatablely move and move up and down just can finish drilling operation.In the prior art, the drill bit type of drive is single and efficient is not high.In addition, the dust that occurs in the punching process has influenced the timber following process attached on the timber.

The utility model content

The carpenter aperture apparatus that the technical problem that the utility model solves provides a kind of new type of drive by pneumatic reception and registration power, orders about drill bit and moves up and down, and improves perforating efficiency.

The utility model is by the following technical solutions:

A kind of carpenter aperture apparatus comprises shell, central rotating shaft, drill bit, sealing cylinder is arranged in the shell, have air admission hole to be connected with cylinder respectively at the upper and lower end of piston, central rotating shaft comprises mandrel and the push rod that slides along mandrel, drill bit is fixed on the push rod, and push rod is connected on the piston.

Preferably, be connected with shell by bearing on the described mandrel; The mandrel lower end is connected with piston by sleeve, bearing.

Preferably, establish the cavity that holds mandrel on the described push rod, sleeve is anchored on push rod one end, and the push rod other end is connected with piston by bearing.

Preferably, the cross sectional shape of described mandrel is the flat key shape, and is gapped between mandrel and the sleeve, and this gap is communicated with cylinder and cavity.

Preferably, be provided with gas hole on drill bit, this gas hole is communicated with cavity.

Further, be provided with gear at the top of mandrel.

Sealing cylinder, piston in the shell, and piston two air admission holes have up and down been formed two-way cylinder jointly.By to the gas transmission of various inlet hole, can order about the piston motion, realize that drill bit moves around up and down.Central rotating shaft is a segmented, and the mandrel interior cavity motion of push rod relatively realizes the flexible of drill bit.Because air admission hole is communicated with gap, cavity, input gas produces thrust to push rod, and the air admission hole aperture is big more, or input pressure is big more, and the drill bit decrease speed is accelerated.Also can on drill bit, set up gas hole, help in boring procedure, to remove dust, guarantee the punching effect.

The mandrel top of each carpenter aperture apparatus all is provided with gear, and the gear between adjacent carpenter aperture apparatus meshes in twos, has formed the gang drill device.Only need a motor gear to drive a gear rotation, the mandrel that just can drive other carpenter aperture apparatus together moves.Upper and lower air admission hole to each carpenter aperture apparatus carries out gas transmission control again, just can realize the punching of different spacing.Each drill bit is in the rotation all the time, following air admission hole air inlet, and drill bit shrinks not operation; Last air admission hole air inlet, the drill bit elongation is processed.

Description of drawings

Fig. 1 is the structural representation of carpenter aperture apparatus, and drill bit extends (to go up the air admission hole ventilation) under this state.

Fig. 2 is the schematic diagram of carpenter aperture apparatus when air admission hole is ventilated down, and drill bit shrinks (omission shell) under this state.

Fig. 3 be Fig. 2 along A-A to cutaway view (this figure is an enlarged drawing).

Fig. 4 is the enlarged diagram of A circle among Fig. 1.

Fig. 5 is the schematic top plan view of gang drill device.

Fig. 6 is the another kind of embodiment (setting up gas hole on the drill bit) of carpenter aperture apparatus, and drill bit extends (to go up the air admission hole ventilation) under this state.

The embodiment that Fig. 7 adopts for Fig. 6, the schematic diagram when following air admission hole is ventilated, drill bit shrinks (omission shell) under this state.

The specific embodiment

See Fig. 1, the utility model comprises shell 14, and the two ends of this shell 14 are by upper and

lower end cap

19,16 sealings, and shell 14 inner chambers form cylinder 12, be provided with upper and lower two air admission holes 7,9 in shell 14 1 sides and be connected with cylinder 12, piston 8 is between these two air admission holes 7,9.This shows that cylinder 12 is two-way cylinder,, piston 8 is moved down from air admission hole 7 air inlets; From air admission hole 9 air inlets, piston 8 is moved up.

The central authorities of shell 14 are central rotating shafts, and this central rotating shaft orders about drill bit 6 and moves up and down and rotate.Central rotating shaft is divided into two sections, and the mandrel 3 of epimere can only rotate, and can not move up and down, and is connected with upper end cover 19 by two bearings 10, and the lower end of mandrel 3 is inserted in the piston 8.Piston rod 15 is fixedlyed connected with piston 8, and the hypomere of central rotating shaft mainly comprises a push rod 5, and push rod 5 is positioned at the inside of piston rod 15, and these push rod 5 upper ends are connected with piston 8 by sleeve 4, bearing 20; The lower end is bearing in the inner chamber of piston rod 15 by bearing 18.By Fig. 1, Fig. 4 as can be known, piston 8 inwalls, sleeve 4 all are stepped, assemble with piston rod 15 and form a plurality of shaft shoulders with location bearing 20.Sleeve 4 inwalls are similarly staged, sleeve 4 lower ends and push rod 5 fastening (this part does not contact with piston rod 15), and other parts guarantee that mandrel 3 passes.Establish cavity 17 in the push rod 5, mandrel 3 can go deep into wherein.In the present embodiment, mandrel 3 adopts on-circular cross-section, sees Fig. 3, leaves gap 11 between mandrel 3 and the sleeve 4, and this gap 11 is communicated with air admission hole 7, cylinder 12 and cavity 17 respectively.Mandrel 3 rotates, and sleeve 4 is followed rotation, drives push rod 5 then and rotates, and push rod 5 bottoms are fixed with drill bit 6, can order about drill bit 6 and produce moment of torsion (this moment, piston rod 15 can not rotate).Piston 8 moves up and down, and can drive push rod 5 and move (being that mandrel 3 produces relative displacement in cavity 17), with driving drill bit 6.This shows that central rotating shaft is a segmented, both flexibles also can guarantee to rotate up and down.

Operation principle following (with reference to Fig. 1, Fig. 2): mandrel 3 rotates, and drives sleeve 4 and rotates, thereby drive push rod 5, drill bit 6 rotations.Air admission hole 7 air inlets, piston 8 descends, and promotion push rod 5, drill bit 6 together descend; Air admission hole 9 air inlets promote piston 8 and rise, and piston rod 15 drives push rod 5, drill bit 6 together rises.

When air admission hole 7 air inlets, because the existence of gap 11, cavity 17, push rod 5 can be under pressure.Admission pressure (to the thrust of push rod 5) is big more, and the aperture of air admission hole 7 is big more, push rod 5 is moved down speed up.

In addition, on drill bit 6, open gas hole 13 and be communicated with, see Fig. 6, Fig. 7 with cavity 17.In carpenter's processing, the dust that produces during boring can be retained in the hole, the influence assembling.After increasing gas hole 13, can simultaneously dust be blown out in boring.

Gear 2 is equipped with on mandrel 3 tops, sees Fig. 1,2,6,7, can be rotated by driven by motor.The utility model is provided with cylinder in inside, can realize the flexible of drill bit, and this mainly is in order to be applied in the gang drill device.A plurality of carpenter aperture apparatus are arranged side by side, on the mandrel 3 of each device gear 2 is housed all, the gear 2 of adjacent two the carpenter aperture apparatus formative gear group that is meshing with each other, see Fig. 5, only need a motor gear 1 just can drive row's carpenter aperture apparatus and rotate simultaneously, package unit is exactly the gang drill device like this.In the gang drill device, distance (being made as d) between adjacent two drill bits is fixed, but because each drill bit can stretch independently, in a gang drill head, can select a part to stretch out like this, another part withdrawal utilizes a part of drill bit punching of stretching out, the drill free of withdrawal, just can realize different spacing boring, pitch of holes is the integral multiple of d.

By above narration as can be known, sealing cylinder 12, piston 8 in the shell 14, and two air admission holes 7,9 of piston about in the of 8 have been formed two-way cylinder jointly.By to 7,9 gas transmissions of various inlet hole, can order about piston 8 motions, realize that drill bit 6 moves around up and down.Central rotating shaft is a segmented, and mandrel 3 is 17 motions of push rod 5 internal cavities relatively, realize the flexible of drill bit 6.Because air admission hole 7 is communicated with gap 11 and cavity 17, input gas produces thrust to push rod 5, and air admission hole 7 apertures are big more, or input pressure is big more, and drill bit 6 decrease speeds are accelerated.And, on drill bit 6, set up gas hole 13, help in boring procedure, to remove dust, guarantee the punching effect.

Mandrel 3 tops of each carpenter aperture apparatus all are provided with gear 2, and the gear 2 between adjacent carpenter aperture apparatus meshes in twos, has formed the gang drill device.Only need a motor gear 1 to drive 2 rotations of a gear, the mandrel 3 that just can drive other carpenter aperture apparatus together moves.Upper and lower air admission hole 7,9 to each carpenter aperture apparatus carries out gas transmission control again, can realize the punching of different spacing.Each drill bit 6 is in the rotation all the time, following air admission hole 9 air inlets, and drill bit 6 shrinks not operation; Last air admission hole 7 air inlets, drill bit 6 elongations are holed.

Claims

1. carpenter aperture apparatus, comprise shell (14), central rotating shaft, drill bit (6), it is characterized in that: sealing cylinder (12) is arranged in the shell (14), upper and lower end at piston (8) has air admission hole (7,9) to be connected with cylinder (12) respectively, and central rotating shaft comprises mandrel (3) and the push rod (5) that slides along mandrel (3), drill bit (6) is fixed on the push rod (5), and push rod (5) is connected on the piston (8).

2. carpenter aperture apparatus according to claim 1 is characterized in that: described mandrel (3) upper end is connected with shell (14) by bearing (10); Mandrel (3) lower end is connected with piston (8) by sleeve (4), bearing (20).

3. carpenter aperture apparatus according to claim 2 is characterized in that: establish the cavity (17) that holds mandrel (3) on the described push rod (5), sleeve (4) is anchored on push rod (5) one ends, and push rod (5) other end is connected with piston (8) by bearing (18).

4. carpenter aperture apparatus according to claim 3 is characterized in that: the cross sectional shape of described mandrel (3) is the flat key shape, and between mandrel (3) and the sleeve (4) gapped (11), this gap (11) are communicated with cylinder (12) and cavity (17).

5. carpenter aperture apparatus according to claim 4 is characterized in that: be provided with gas hole (13) on drill bit (6), this gas hole (13) is communicated with cavity (17).

6. according to each described carpenter aperture apparatus among the claim 1-5, it is characterized in that: be provided with gear (2) at the top of mandrel (3).