CN103440856B - A kind of device for correcting piano string code and string code and the assembly method of soundboard - Google Patents
A kind of device for correcting piano string code and string code and the assembly method of soundboard Download PDFInfo
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- CN103440856B CN103440856B CN201310426061.XA CN201310426061A CN103440856B CN 103440856 B CN103440856 B CN 103440856B CN 201310426061 A CN201310426061 A CN 201310426061A CN 103440856 B CN103440856 B CN 103440856B
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Abstract
The invention discloses a kind of device for correcting piano string code and string code and the assembly method of soundboard, wherein, described device includes workbench and sets multiple clamp systems on the table, each clamp system includes fixed mandril, flexible push rod and telescoping mechanism, wherein, flexible push rod is connected with telescoping mechanism；The operative end surface of the fixed mandril in multiple clamp systems is right against the operative end surface of fixed mandril along the desired profile EDS maps of one of them side of string code, the operative end surface of the flexible push rod in each clamp system；The located space for placing string code is formed between operative end surface and the operative end surface of flexible push rod of described fixed mandril.String code can be remedied to correct form by the device being used for correcting piano string code of the present invention conveniently and efficiently, it is ensured that after string code and soundboard connect, relative position relation is accurate, so that it is guaranteed that string flat nail position and the precision of chord length so that piano pronunciation is accurately.
Description
Technical field
The present invention relates to process equipment and the assembly method of piano parts, be specifically related to a kind of for correcting piano
The device of string code and string code and the assembly method of soundboard.
Background technology
The pronunciation main body of piano is string, and the upper end of string is turned round in peg, and string crosses capotasto, then passes through
String flat nail on string code, lower end is enclosed within the extension string of piano iron plate and nails on.The part of string vibration is in upper end
Between the string flat nail of capotasto and lower end.Therefore, the effectual chord length of the distance between capotasto and string flat nail affects
Pronouncing frequency；The conduction of sound is played great role by string code chord flat nail equally, and string passes through string flat nail and string
Soundboard is passed in its vibration by code, then empathizes expand volume and make sound extend by the resonance of soundboard.
Seeing Fig. 1～Fig. 3, string code 1 and soundboard are important parts in piano.String code 1 is not in
The flexure type of rule, is roughly divided into deep camber circular arc portion 1-2 and little curvature circular arc portion 1-1, wherein Daqu (massive raw stater for alcholic liquor)
Connecting portion 1-3 between rate circular arc portion 1-2 and little curvature circular arc portion 1-1 is mild S type, and Daqu (massive raw stater for alcholic liquor)
The end of rate circular arc portion 1-2 has that curvature is relatively big and the short arc section 1-4 of back-flexing.The end face of string code 1
On many group string flat nail hole 1-5 is distributed, be used for string flat nail is installed.
Described string code 1 is bonded and fixed on soundboard, determines chord length, the position of string code holes according to the vibration of string
Installing meter is to be determined with chord length by the upper capotasto position of iron plate, and the contour shape of string code is the position according to string code holes
And design, and the least vibration effect to soundboard of string code width is minimum.
Therefore, the shape of string code 1 directly affects the positional precision of string code holes, the accuracy in pitch tool to piano pronunciation
There is important impact.But string code 1 is made up of timber, is easily deformed after processing, be therefore installed to soundboard it
Before need its shape is corrected.
Existing piano string code is that string code is carried out, after the method is bonding in a free state with the bonding of soundboard
There is certain deviation the position of string flat nail, makes the tolerance range of chord length strengthen, and makes the tone color adjustment difficulty of piano add
Greatly.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of for correcting piano string code
Device, string code can be remedied to the form of design by this device conveniently and efficiently, it is ensured that string code and soundboard connect
Rear relative position relation is accurate, so that it is guaranteed that string flat nail position and the precision of chord length so that piano pronunciation is accurately.
Further object is that providing a kind of applies the above-mentioned device for correcting piano string code to realize
String code and the assembly method of soundboard.
The present invention realizes the technical scheme of above-mentioned purpose:
A kind of device for correcting piano string code, including workbench and set multiple clampings on the table
Mechanism, each clamp system includes fixed mandril, flexible push rod and telescoping mechanism, wherein, flexible push rod
It is connected with telescoping mechanism；The operative end surface of the fixed mandril in multiple clamp systems is along one of them side of string code
The desired profile EDS maps in face, the operative end surface of the flexible push rod in each clamp system is right against fixed mandril
Operative end surface；Formed between operative end surface and the operative end surface of flexible push rod of described fixed mandril and be used for putting
Put the located space of string code.
One preferred version of the present invention, wherein, also includes the end locating piece set on the table, this end
The end face laminating of the little curvature circular arc portion of the operative end surface of portion's locating piece and string code.
One preferred version of the present invention, wherein, described clamp system is 5, wherein, the little song of string code
Arrange 2 on rate circular arc portion, lay respectively at the two ends of this little curvature circular arc portion；The deep camber circle of string code
Arrange 3 in arc part, lay respectively at two ends and the middle part of this deep camber circular arc portion.
One preferred version of the present invention, wherein, also includes soundboard location structure, this soundboard location structure bag
Include multiple soundboard locating piece.
One preferred version of the present invention, wherein, also includes soundboard hold down gag, this soundboard hold down gag bag
Include multiple soundboard hold-down head being arranged on directly over string code, each soundboard hold-down head respectively with a up and down motion
Mechanism connects, and this up-down mechanism is fixed on bracing frame；Described soundboard hold-down head is positioned at adjacent two use
In connecting between string code and the screw of soundboard.
One preferred version of the present invention, wherein, described up-down mechanism is fixed on by magnetic mechanism and props up
On support.
One preferred version of the present invention, wherein, described up-down mechanism is cylinder, described magnetic mechanism
Including fixing the Magnet being connected and the magnetic plate being located on bracing frame with cylinder top；Described cylinder is at magnetic force
It is fixed under effect on magnetic plate.
One preferred version of the present invention, wherein, described telescoping mechanism is cylinder or hydraulic cylinder.
One preferred version of the present invention, wherein, described workbench includes base plate and the pad being located on base plate
Plate, described string code and end locating piece be arranged on backing plate, described fixed mandril, telescoping mechanism and soundboard
Locating piece is fixed on base plate by fixing seat；
Described base plate is fixed on column, and support frame as described above is fixedly connected on the top of column.
A kind of string code applying the above-mentioned device for correcting piano string code to realize and the assembly method of soundboard, bag
Include following steps:
(1) upper surface at string code coats adhesive glue；
(2) string code is placed in the located space of workbench by tram so that the end on workbench
The operative end surface of locating piece and consolidating in the end face laminating of the little curvature circular arc portion of string code, multiple clamp system
Determine the operative end surface of push rod and pressing close to of one of them side of string code；
(3) telescoping mechanism is started so that the operative end surface of flexible push rod acts on another side of string code,
Promote being adjacent to of the operative end surface of the fixed mandril in multiple clamp system and the corresponding side surface of string code, thus right
The shape of string code carries out correcting and being compressed；
(4) soundboard is positioned on string code, and makes soundboard be properly positioned on soundboard location structure；
(5) up-down mechanism is started so that soundboard hold-down head is pressed on the upper surface of soundboard；
(6) according to screw junction point drivescrew set in advance on soundboard, connect fixing for soundboard chord code
Together.
The present invention compared with prior art has a following beneficial effect:
In the present invention, owing to the operative end surface of fixed mandril is along the desired profile face of one of them side of string code
It is distributed, and the operative end surface of flexible push rod is right against the operative end surface of fixed mandril, when string code is by the appearance specified
After state is positioned in located space, starting telescoping mechanism, string code is held out against on fixed mandril by flexible push rod,
Thus by the shape correction of string code to perfect condition, in this case, be connected fixing to itself and soundboard,
To guarantee the relative position relation of string code and soundboard, ensure that string flat nail position and steel wire string effectual chord length
Accuracy, and then guarantee the pronunciation accuracy in pitch of piano.
Accompanying drawing explanation
Fig. 1～Fig. 3 is the structural representation of piano string code, and wherein, Fig. 1 is front view, and Fig. 2 is top view,
Fig. 3 is rearview.
Fig. 4～Fig. 6 is the structure of a detailed description of the invention of the device for correcting piano string code of the present invention
Schematic diagram, wherein, Fig. 4 is front view (omitting clamp system part), and Fig. 5 is that top view (omits sound
Plate hold down gag), Fig. 6 is left view (omitting clamp system part).
Fig. 7 is the cross sectional view of Fig. 5.
In figure, reference is: 1 string code；1-1 little curvature circular arc portion；1-2 deep camber circular arc portion；1-3
Connecting portion；The short arc section of 1-4,1-5 string flat nail hole；2 backing plates；3 fixed mandrils；4 stretch push rod；5 stretch
Contracting mechanism；6 end locating pieces；7 base plates；8 soundboards；9 soundboard locating pieces；10 bracing frames；11 soundboard pressures
Tight head；12 up-down mechanism；13 columns；14 fix seat；15 screw junction points；16 Magnet；17 magnetic
Suction disc.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but the embodiment party of the present invention
Formula is not limited to this.
Embodiment 1
Seeing Fig. 4～Fig. 7, the device being used for correcting piano string code of the present embodiment includes workbench and is located at
Multiple clamp systems on workbench, each clamp system includes fixed mandril 3, flexible push rod 4 and stretches
Mechanism 5, wherein, flexible push rod 4 is connected with telescoping mechanism 5；Fixed mandril 3 in multiple clamp systems
Operative end surface is along the desired profile EDS maps of one of them side of string code 1, stretching in each clamp system
The operative end surface of push rod 4 is right against the operative end surface of fixed mandril 3；The operative end surface of described fixed mandril 3
And form the located space for placing string code 1 between the operative end surface of flexible push rod 4.
Seeing Fig. 4～Fig. 7, the described device for correcting piano string code also has the end set on the table
The end face patch of the little curvature circular arc portion 1-1 of locating piece 6, the operative end surface of this end locating piece 6 and string code 1
Close.By arranging this end locating piece 6, limit string code 1 activity along its length, then with fixed mandril 3
Combine, it is simple to place location during string code 1.Described clamp system is 5, wherein, and string code 1
Little curvature circular arc portion 1-1 on arrange 2, lay respectively at the two ends of this little curvature circular arc portion 1-1；String
Arrange 3 on the deep camber circular arc portion 1-2 of code 1, lay respectively at the two ends of this deep camber circular arc portion 1-2
And middle part.By arranging 5 clamp systems in a manner described, it can be ensured that the shape of string code 1 after rectification
Meet use requirement, it is of course also possible to increase the quantity of clamp system further, in order to obtain higher shape
Shape precision.
See Fig. 4～Fig. 7, after string code 1 is corrected, then fixing with soundboard 8 to be connected, for the ease of soundboard
The location of 8, workbench is provided with soundboard location structure, and this soundboard location structure includes 3 soundboard locating pieces 9,
Two of which is for positioning one of them side of soundboard 8, and another is used for positioning on soundboard 8 and this side
Another adjacent side, thus soundboard 8 is positioned accurately.In order to ensure string code 1 and soundboard 8
Between position relationship accurate, described soundboard locating piece 9 and fixed mandril 3 and the position of end locating piece 6
Relation of putting needs to arrange according to design size, it is ensured that after string code 1 and soundboard 8 connect, both relative positions
Relation is accurate.
Seeing Fig. 4～Fig. 7, described workbench includes base plate 7 and the backing plate 2 being located on base plate 7, wherein,
Described string code 1 and end locating piece 6 are arranged on backing plate 2, described fixed mandril 3, telescoping mechanism 5 and
Soundboard locating piece 9 is fixed on base plate 7 by fixing seat 14；This base plate 7 is fixedly connected on four root posts 13
On.Described telescoping mechanism 5 is cylinder A, and described flexible push rod 4 is connected with the piston rod of this cylinder A.
See Fig. 4～Fig. 7, when connecting string code 1 and soundboard 8, for the ease of soundboard 8 is fixed, this
Bright also including soundboard hold down gag, this soundboard hold down gag includes multiple soundboard being arranged on directly over string code 1
Hold-down head 11, each soundboard hold-down head 11 is connected with a up-down mechanism 12 respectively, this up and down motion
Mechanism 12 is fixed on bracing frame 10, and this bracing frame 10 is fixed on the top of described four root posts 13；Institute
State soundboard hold-down head 11 adjacent two between the screw connecting string code 1 and soundboard 8.Described soundboard
Hold down gag is 7, and the length direction along string code 1 is distributed, and during work, up-down mechanism 12 drives
Soundboard hold-down head 11 moves downward and is pressed on soundboard 8, the most just can drivescrew from the top down, by string
Code 1 and soundboard 8 connect.Specifically, described up-down mechanism 12 is cylinder B, described soundboard hold-down head
On 11 piston rods being connected to this cylinder B.For the ease of the flexible of the position of described soundboard hold-down head 11,
Described up-down mechanism 12 is fixed on bracing frame 10 by magnetic mechanism, and this magnetic mechanism includes and gas
Magnet 16 (common strong magnet) that cylinder B fixes on top connection and the magnetic plate 17 being located on bracing frame 10,
So, when the Magnet 16 of connection is fixed near magnetic plate 17 in cylinder B top, cylinder B is fixed on magnetic
On suction disc 17, and when needing the position adjusting cylinder B, can laterally rap the portion of Magnet 16 with wooden unit
Position, thus adjust the position of cylinder B.This technical scheme has that attachment structure is simple, easy and simple to handle, position
The advantages such as flexible adjustment.
See Fig. 4～Fig. 7, the present invention applies the above-mentioned device for correcting piano string code realize below
Being embodied as of the assembly method of string code and soundboard is described in further detail, and the method comprises the following steps:
(1) upper surface at string code 1 coats adhesive glue；
(2) string code 1 is placed on the table by tram so that the end on string code 1 workbench is fixed
In the end face laminating of the operative end surface of position block 6 and the little curvature circular arc portion 1-1 of string code 1,5 clamp systems
The pressing close to of one of them side of operative end surface equal string code 1 (or laminating) of fixed mandril 3；
(3) cylinder A is started so that the operative end surface of flexible push rod 4 acts on another side of string code 1
On, promote being adjacent to of the operative end surface of the fixed mandril 3 in 5 clamp systems and the corresponding side surface of string code 1,
Thus the shape of string code 1 is corrected and compressed；
(4) soundboard 8 is positioned on string code 1, and makes soundboard 8 be properly positioned on soundboard locating piece 9；
(5) cylinder B is started so that soundboard hold-down head 11 is pressed on the upper surface of soundboard 8；
(6) according to screw junction point 15 drivescrew set in advance on soundboard 8, by soundboard 8 chord code 1
It is fixed together.
Embodiment 2
The present embodiment is with the difference of embodiment 1, in the present embodiment, described telescoping mechanism and on
Lower motion is hydraulic cylinder.
The present embodiment other embodiments other than the above are same as in Example 1.
Above-mentioned for the present invention preferably embodiment, but embodiments of the present invention are not limited by foregoing
System, the change made under other any spirit without departing from the present invention and principle, modify, substitute,
Combination, simplification, all should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (10)
1. the device being used for correcting piano string code, it is characterised in that include workbench and be located at work
Multiple clamp systems on platform, each clamp system includes fixed mandril, flexible push rod and telescoping mechanism,
Wherein, flexible push rod is connected with telescoping mechanism；The operative end surface of the fixed mandril in multiple clamp systems is along string
The desired profile EDS maps of one of them side of code, the operative end surface of the flexible push rod in each clamp system
It is right against the operative end surface of fixed mandril；The operative end surface of described fixed mandril and the operative end surface of flexible push rod
Between formed for placing the located space of string code.
Device for correcting piano string code the most according to claim 1, it is characterised in that also include
If the little curvature arc sections of end locating piece on the table, the operative end surface of this end locating piece and string code
The end face laminating divided.
Device for correcting piano string code the most according to claim 2, it is characterised in that described folder
Tight mechanism is 5, wherein, the little curvature circular arc portion of string code arranges 2, lays respectively at this little curvature
The two ends of circular arc portion；Arrange 3 on the deep camber circular arc portion of string code, lay respectively at this deep camber circular arc
The two ends of part and middle part.
4., according to the device for correcting piano string code described in any one of claims 1 to 3, its feature exists
In, also including soundboard location structure, this soundboard location structure includes multiple soundboard locating piece.
Device for correcting piano string code the most according to claim 4, it is characterised in that also include
Soundboard hold down gag, this soundboard hold down gag includes multiple soundboard hold-down head being arranged on directly over string code, often
Individual soundboard hold-down head is connected with a up-down mechanism respectively, and this up-down mechanism is fixed on bracing frame；
Described soundboard hold-down head is used for connecting between string code and the screw of soundboard at adjacent two.
Device for correcting piano string code the most according to claim 5, it is characterised in that on described
Lower motion is fixed on bracing frame by magnetic mechanism.
Device for correcting piano string code the most according to claim 6, it is characterised in that on described
Lower motion is cylinder, and described magnetic mechanism includes fixing with cylinder top the Magnet being connected and is located at
Magnetic plate on support；Described cylinder is fixed on magnetic plate under magneticaction.
Device for correcting piano string code the most according to claim 1, it is characterised in that described
Telescoping mechanism is cylinder or hydraulic cylinder.
Device for correcting piano string code the most according to claim 5, it is characterised in that described work
Station includes that base plate and the backing plate being located on base plate, described string code and end locating piece are arranged on backing plate,
Described fixed mandril, telescoping mechanism and soundboard locating piece are fixed on base plate by fixing seat；
Described base plate is fixed on column, and support frame as described above is fixedly connected on the top of column.
10. one kind apply described in claim 5 for correct piano string code device realize string code and sound
The assembly method of plate, it is characterised in that comprise the following steps:
(1) upper surface at string code coats adhesive glue；
(2) string code is placed in the located space of workbench by tram so that the end on workbench
The operative end surface of locating piece and consolidating in the end face laminating of the little curvature circular arc portion of string code, multiple clamp system
Determine the operative end surface of push rod and pressing close to of one of them side of string code；
(3) telescoping mechanism is started so that the operative end surface of flexible push rod acts on another side of string code,
Promote being adjacent to of the operative end surface of the fixed mandril in multiple clamp system and the corresponding side surface of string code, thus right
The shape of string code carries out correcting and being compressed；
(4) soundboard is positioned on string code, and makes soundboard be properly positioned on soundboard location structure；
(5) up-down mechanism is started so that soundboard hold-down head is pressed on the upper surface of soundboard；
(6) according to screw junction point drivescrew set in advance on soundboard, connect fixing for soundboard chord code
Together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310426061.XA CN103440856B (en) | 2013-09-17 | 2013-09-17 | A kind of device for correcting piano string code and string code and the assembly method of soundboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310426061.XA CN103440856B (en) | 2013-09-17 | 2013-09-17 | A kind of device for correcting piano string code and string code and the assembly method of soundboard |
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| Publication Number | Publication Date |
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| CN103440856A CN103440856A (en) | 2013-12-11 |
| CN103440856B true CN103440856B (en) | 2016-08-17 |
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| CN201310426061.XA Active CN103440856B (en) | 2013-09-17 | 2013-09-17 | A kind of device for correcting piano string code and string code and the assembly method of soundboard |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978298B (en) * | 2017-12-29 | 2023-11-14 | 广州珠江恺撒堡钢琴有限公司 | Positioning rack for assembling impact device |
| CN108039158B (en) * | 2017-12-29 | 2022-11-01 | 广州珠江恺撒堡钢琴有限公司 | String code correcting device |
| CN108022569B (en) * | 2017-12-29 | 2023-11-10 | 广州珠江恺撒堡钢琴有限公司 | Positioning tool for string striking point |
| CN108831414B (en) * | 2018-05-30 | 2023-06-16 | 北京卡丹萨文化艺术有限公司 | Device for correcting string code of steel musical instrument and assembly method of string code and soundboard |
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|---|---|---|---|---|
| CN101059955A (en) * | 2006-09-14 | 2007-10-24 | 上海钢琴有限公司 | Prestressed piano soundboard and its machining method |
| CN102737621A (en) * | 2011-04-01 | 2012-10-17 | 郭学成 | Automatic piano string code assembly technology and its special-purpose equipment |
| CN202922168U (en) * | 2012-11-12 | 2013-05-08 | 北京东奇众科技术有限公司 | Automatic press-in machine for piano chord axis |
| CN203480815U (en) * | 2013-09-17 | 2014-03-12 | 广州珠江钢琴集团股份有限公司 | Device for correcting piano saddle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007018063A1 (en) * | 2005-08-11 | 2007-02-15 | Yamaha Hatsudoki Kabushiki Kaisha | Mold for die casting, method of manufacturing mold for die casting, and method for die casting |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059955A (en) * | 2006-09-14 | 2007-10-24 | 上海钢琴有限公司 | Prestressed piano soundboard and its machining method |
| CN102737621A (en) * | 2011-04-01 | 2012-10-17 | 郭学成 | Automatic piano string code assembly technology and its special-purpose equipment |
| CN202922168U (en) * | 2012-11-12 | 2013-05-08 | 北京东奇众科技术有限公司 | Automatic press-in machine for piano chord axis |
| CN203480815U (en) * | 2013-09-17 | 2014-03-12 | 广州珠江钢琴集团股份有限公司 | Device for correcting piano saddle |
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