CN87212262U - Piano keyboard automatic copying kerf-sawing machine - Google Patents
Piano keyboard automatic copying kerf-sawing machine Download PDFInfo
- Publication number
- CN87212262U CN87212262U CN 87212262 CN87212262U CN87212262U CN 87212262 U CN87212262 U CN 87212262U CN 87212262 CN87212262 CN 87212262 CN 87212262 U CN87212262 U CN 87212262U CN 87212262 U CN87212262 U CN 87212262U
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- saw
- band
- bands
- profiling
- kerf
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Abstract
In the processing course of piano keys of the existing piano, lines are scribed by hands and observed by eyes. The shapes of the piano keys are sawn by manually moving workpieces on a common wood working band saw according to the lines. The utility model provides an automatic profiling kerf-sawing machine for total or part of the oblique curves of the piano keys of a piano keyboard. The utility model is composed of a band saw mechanism with five saw wheels, a workpiece positioning and clamping mechanism, a profiled board, a profiling mechanism, a band saw blade clamping and twisting mechanism, a longitudinal workbench, a transverse workbench and a machine body. The utility model realizes the automatic profiling and the kerf sawing of the workpieces, and overcomes the defects of low production efficiency, poor product consistency, high rejection rate and large danger of workers in the original manual operation.
Description
The utility model relates to a kind of for carpenter's automatic profiling sawing materials device, particularly produces the automatic coping saw seam device that piano key is used, and is mainly used in the automatic profiling saw kerf that fingerboard skew curve whole or local key stitches.
To the processing of piano key, all be to substitute with common wood working band sawing machine at present, the operator carries out manual line earlier on workpiece (keyboard), then on band sawing machine with the hand travelling workpiece, eyes are seen line, go out the shape of key according to scroll saw.Because entirely with manual operations, eyes observation so it is poor just to exist the key uniformity of sawing out, causes the assembling difficulty, product percent defective height, and production efficiency is low, and workman's working condition is poor, dangerous big shortcoming.
Task of the present utility model is exactly will provide a kind of need not the line and the automatic profiling joint saw of sawing out the skew curve seam of the whole or local key of fingerboard automatically.
Task of the present utility model realizes as follows:
This fingerboard automatic profiling joint saw is by five saw wheel band saw mechanisms, workpiece positioning clamping mechanism, horizontal work level and driving mechanism, vertical workbench and fast return mechanism, fuselage, template, profiling frame and bands for band clamping twist mechanism, electric appliance control box constitutes.
In five saw wheel band saw mechanisms, four saw wheel center arrangement are on four intersection points of plane quadrilateral, main purpose is the shelves of opening that increase bands for band, thereby realize the automatic profiling saw kerf function of piano full keyboard, another saw wheel is arranged in wherein on the limit, and this saw wheel plays the tension band saw blade and increases bands for band to the saw wheel cornerite.
This automatic profiling joint saw bottom is fuselage and electric appliance control box, horizontal work level is set on fuselage, vertical workbench is set on horizontal work level, vertically workbench can move by vertical straight line on horizontal work level, two workbench all adopt rolling guide, and purpose is the power of reducing friction.Horizontal work level is done traversing power by the torque motor driven wheel tooth bar mechanism of band decelerator, is vertically fixing template and workpiece positioning clamping mechanism on the workbench, and is being subjected to a vertical permanent pulling force effect, and its permanent pulling force is realized by weight.Weight is by steel wire rope, and several pulleys and vertical workbench link together, and motion in vertical direction.Vertically workbench fast return mechanism is the torque motor by the band decelerator, through electromagnetic clutch, and driven wheel, rackwork, the realization fast return.
The workpiece localization method is to adopt two round pins location, and the method for clamping is to adopt a strip pressing plate, and with soft elastic material, the two ends of pressing plate are provided with hook in the surface cushion that contacts with workpiece, can be hooked on the eccentric shaft, and pulling the eccentric shaft handle can clamp full keyboard.
The profiling frame is fixed on behind the fuselage on the vertical side, be divided into two-layer up and down, two vertical shafts in front and back, back vertical shaft lower end is installed with the copying contact in approximate rectangular cross section, contact can not move, but can swing around self axis, and can do relative slip in the template imitation-shaped groove, two-layer up and down what be connected by parallel-crank mechanism is two cover bands for band clamping twist mechanisms with this axle.Their center line is the center line of bands for band, the center line of vertical shaft before that is to say.The windup-degree of twist mechanism is on all four with the pendulum angle of copying contact, because of they are to be linked together by parallel-crank mechanism, thereby the realization synchronization action.
The retained part of bands for band clamping twist mechanism is to be configured to propping up by several bearings, one of them bearing props up the rear flank of bands for band, and all the other bearings are clamped two planes of bands for band, and leave minimum gap, retained part is placed on the reverse part, has common center line.The bearing of reverse part is a limit of parallel-crank mechanism, and this limit mid point and bands for band center coincide.The axial location that bearing and steel ball maintainance set, overcoat, profiling frame all have equidirectional one radial gap greater than bands for band thickness, bearing adopts circlip for shaft.
The imitation-shaped groove of template is divided into three zones: bass area, middle register, treble all are to be made of workpiece shape groove, lead-over groove and kick backs.The terminal of kick backs links to each other with bass area unit one shape groove by lead-over groove, and the top of kick backs links to each other by last workpiece shape groove of lead-over groove and treble, and remaining workpiece shape groove all only links to each other with lead-over groove.The width of workpiece shape groove and lead-over groove slightly is wider than the width of copying contact, but its curved groove part must be able to make the copying contact in approximate rectangular cross section pass through, and the width of kick backs is greater than the length on the long limit of copying contact.
This fingerboard automatic profiling joint saw, the key of design is the co-design of template and relevant profiling parts, general copying device, copying contact is with " point " contact work, and the copying contact of this machine copying device is carried out work with " face " contact, thereby it can twist bands for band synchronously, decide machining locus by giving, workpiece is carried out saw kerf, and pass through template, the vertical workbench of permanent pulling force, the automatic profiling saw kerf work of full keyboard is finished in the cooperation of horizontal work level and relevant profiling parts.
This fingerboard automatic profiling joint saw is used different templates and workpiece positioning clamping mechanism instead, can process the multiple curve wooden workpiece of (comprising saw kerf) that requires.This contour machining method also can be used for the Curve Machining of other material.
Compare with substituting machined steel piano key board saw kerf with common carpenter's band sawing machine at present, this fingerboard automatic profiling joint saw processing piano key skew curve seam (straight line seam also can) need not be rule, the production efficiency height, good product consistency, percent defective is low, save manpower, be safe from danger, improved operator's working condition.
Illustrate that referring now to accompanying drawing the utility model and embodiment: Fig. 1 is the left side view of this fingerboard automatic profiling joint saw.
Fig. 2 is the front view of equipment shown in Figure 1.
Fig. 3 has shown the partial top view of profiling frame, template and workpiece part in Fig. 2.
Fig. 4 has shown the structure chart of bands for band clamping twist mechanism in Fig. 2.
During the work of this fingerboard automatic profiling joint saw, at first workpiece is placed on workpiece positioning clamping mechanism (3), (1) by manual, accurately locate with two straight pins, and push down workpiece with the strip pressing plate, the hook at pressing plate two ends is hooked on the eccentric little axle on the positioning body, and pulling the eccentric shaft handle can clamp workpiece.Start the band saw motor then, rotating band saw blade (10) runs up.Copying contact this moment (14) places the terminal location of template (15) kick backs.Start automatic cutting process, horizontal work level (9) just marches forward this moment, and vertically workbench (4) is also along with laterally moving, and template above that (15) and clamped workpiece are also along with mobile.Because of copying contact (14) places imitation-shaped groove, can not move, but can swing, thereby vertically workbench (4) can only be along the center line of imitation-shaped groove--be that the processing request track moves, promptly template (15) is the location with copying contact (14).Terminal from kick backs (17), slippage is to lead-over groove (18) successively, arrive workpiece shape groove (19) again, and copying contact (14) produces the angle swinging along the imitation-shaped groove direction under the positive action of imitation-shaped groove, by the back vertical shaft that connects firmly mutually with it, act on parallel-crank mechanism (16), drive bands for band clamping twist mechanism (12), force the bands for band (10) that moves both vertically at a high speed to reverse synchronously, workpiece then is sawn into desired saw kerf.After a saw kerf completion of processing, copying contact (14) arrives workpiece shape groove (19) terminal position of template (15), is then oppositely return by electrical apparatus control system instruction horizontal work level (9).Returning route is former machining locus, and bands for band (10) also withdraws from from former saw kerf.Because of vertical workbench (4) is subjected to the permanent pulling force of direction left all the time, thereby when copying contact (14) returns to workpiece shape groove (19) and plays end position, vertical workbench (4) direction left moves, then copying contact (14) enters the lead-over groove (18) between the two adjacent workpiece shape grooves (19), when arriving lead-over groove (18) terminal, electrical apparatus control system instructs horizontal work level (9) just to march forward again again, this moment, vertically workbench (4) was moved to the left again, so copying contact (14) just enters next lead-over groove (18), then enter a new workpiece shape groove (19), by new profiling track, finish the processing work of the new saw kerf of workpiece.So carry out, after processing all saw kerfs, horizontal work level (9) returns to the position, top of kick backs (17), after bands for band (10) also withdraws from from last saw kerf of workpiece, electrical apparatus control system instruction horizontal work level (9) halts, and instructs vertical workbench (4) fast return mechanism (6) to move.Vertically workbench (4) fast return is to original position, equipment autostop.Manual workpiece loading and unloading, the fabrication cycles that enters next workpiece again.
Claims (6)
1, a kind of piano qin that is used for is built the fingerboard automatic profiling joint saw that saw kerf is used, it is characterized in that by fuselage (11) and be provided with on it and all adopt rolling guide horizontal work level (9), be subjected to the fuselage mechanism that vertical workbench (4) of vertical permanent pulling force constitutes and the five saw wheel band saw mechanisms that are fixed on fuselage (11) one ends and by the profiling frame (8) that is fixed on fuselage (11) rear side with parallel-crank mechanism (16), bands for band clamping on it is set turns round the feeler mechanism of converting mechanism (12) formation and form.
2, according to the joint saw of claim 1, it is characterized in that five saw wheel band saw mechanisms are made of four saw wheels (7) and tensioning saw wheel (13), the center arrangement of four saw wheels (7) is on four intersection points of plane quadrilateral, and tensioning saw wheel (13) is arranged in wherein on the limit.
3,, fixing template (15) and workpiece positioning clamping mechanism (3), (1) before and after it is characterized in that dividing on vertical workbench (4) according to the joint saw of claim 1.
4, according to the joint saw of claim 1, it is characterized in that profiling frame (8) is made of two-layer up and down in the feeler mechanism, one parallel-crank mechanism (16) and bands for band clamping twist mechanism (12) are set on every layer, and an opposite side mid point of parallel-crank mechanism (16) is on the vertical shaft center line of the front and back of profiling frame (8).Copying contact (14) with approximate rectangular cross section is fixed on an end of back vertical shaft, and reverses synchronously by parallel-crank mechanism (16) drive bands for band clamping twist mechanism (12).
5, according to the joint saw of claim 1 or 4, the retained part that it is characterized in that bands for band clamping twist mechanism (12) is by 3 or 5 bearings (20) and is configured to, the bearing of reverse part (23) is a limit of parallel-crank mechanism (16), and the center of this limit mid point and bands for band (10) coincides, and all has equidirectional one radial gap greater than bands for band (10) thickness with steel ball maintainance set (21), overcoat (22), profiling frame (8).
6, according to the joint saw of claim 1 or 3, the imitation-shaped groove that it is characterized in that template (15) all is to be made of workpiece shape groove (19), lead-over groove (18) and imitation-shaped groove (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87212262 CN87212262U (en) | 1987-08-28 | 1987-08-28 | Piano keyboard automatic copying kerf-sawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87212262 CN87212262U (en) | 1987-08-28 | 1987-08-28 | Piano keyboard automatic copying kerf-sawing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87212262U true CN87212262U (en) | 1988-07-06 |
Family
ID=4826939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87212262 Withdrawn CN87212262U (en) | 1987-08-28 | 1987-08-28 | Piano keyboard automatic copying kerf-sawing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87212262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522365A (en) * | 2013-10-22 | 2014-01-22 | 临海市金浪五金塑料制品厂（普通合伙） | Automatic sawing machine for piano keyboard |
-
1987
- 1987-08-28 CN CN 87212262 patent/CN87212262U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522365A (en) * | 2013-10-22 | 2014-01-22 | 临海市金浪五金塑料制品厂（普通合伙） | Automatic sawing machine for piano keyboard |
| CN103522365B (en) * | 2013-10-22 | 2015-11-18 | 临海市金浪五金塑料制品厂（普通合伙） | The automatic saw of fingerboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |