CN107978298B - Positioning rack for assembling impact device - Google Patents
Positioning rack for assembling impact device Download PDFInfo
- Publication number
- CN107978298B CN107978298B CN201711469923.1A CN201711469923A CN107978298B CN 107978298 B CN107978298 B CN 107978298B CN 201711469923 A CN201711469923 A CN 201711469923A CN 107978298 B CN107978298 B CN 107978298B
- Authority
- CN
- China
- Prior art keywords
- positioning
- groove
- butt
- inter
- positioning grooves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000000712 assembly Effects 0.000 claims abstract description 14
- 238000000429 assembly Methods 0.000 claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000011179 visual inspection Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
- G10C3/00—Details or accessories
- G10C3/16—Actions
- G10C3/18—Hammers
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
- G10C9/00—Methods, tools or materials specially adapted for the manufacture or maintenance of musical instruments covered by this subclass
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Gears, Cams (AREA)
Abstract
The invention relates to a butt assembly positioning rack, which comprises a positioning block and a slot plate; the positioning block is of a strip-shaped structure with a rectangular cross section, and the length direction extends along the left-right direction; a plurality of inter-groove plates are arranged at the rear position of the upper end surface of the positioning block, and the inter-groove plates are arranged at intervals along the left-right direction, so that a plurality of positioning grooves which are sequentially arranged along the left-right direction are formed among the inter-groove plates; the width of the positioning grooves corresponds to the thickness of the cams in the butt assemblies, the number of the positioning grooves is the same as that of butt assemblies of a piano, and the spacing of the positioning grooves corresponds to the spacing of the butt assemblies after assembly. By adopting the invention to assist assembly, the butt assembly is not askew, the clearance is uniform, the assembly efficiency is improved, and the repair rate is low. Belonging to auxiliary equipment for piano production.
Description
Technical Field
The invention relates to auxiliary equipment for piano production, in particular to an assembling and positioning rack for a butt.
Background
The string striking machine of the upright piano comprises 85 hammer butt assemblies, each hammer butt assembly is rotationally connected with a shaft bracket through a cam of the hammer butt assembly, and when the string striking machine is assembled, the mounting holes of the shaft bracket are required to be aligned with the mounting holes of the aluminum main rail, and screws penetrate through the two mounting holes so as to fasten the shaft bracket and the aluminum main rail.
In the prior art, all the butt assemblies are arranged at the rear end of an aluminum main rail one by one, so that corresponding mounting holes are opposite, and when the screws are screwed down and fastened, the gaps among the butt assemblies are relatively uniform by visual inspection. However, the prior art has the following disadvantages: 1. the existing technology adjusts the butt assembly by visual inspection, and the butt assembly has non-vertical deflection and uneven gap. 2. The production efficiency of workers is low, the operation is troublesome, and the repeated adjustment is needed.
Disclosure of Invention
Aiming at the technical problems existing in the prior art, the invention aims at: a butt assembly positioning rack for automatically aligning and mounting a butt assembly is provided.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the butt is provided with a positioning rack, and comprises a positioning block and a groove plate; the positioning block is of a strip-shaped structure with a rectangular cross section, and the length direction extends along the left-right direction; a plurality of inter-groove plates are arranged at the rear position of the upper end surface of the positioning block, and the inter-groove plates are arranged at intervals along the left-right direction, so that a plurality of positioning grooves which are sequentially arranged along the left-right direction are formed among the inter-groove plates; the width of the positioning grooves corresponds to the thickness of the cams in the butt assemblies, the number of the positioning grooves is the same as that of butt assemblies of a piano, and the spacing of the positioning grooves corresponds to the spacing of the butt assemblies after assembly.
The inter-groove plates are cube-shaped, the rear end faces of the inter-groove plates are aligned with the rear end faces of the positioning blocks, the upper end faces of all the inter-groove plates are aligned with each other, and the front end faces of all the inter-groove plates are aligned with each other.
The upper end face of the positioning block is provided with yielding holes which are in one-to-one correspondence with the positioning grooves, and the yielding holes are positioned right below the positioning grooves.
The positioning blocks and the plates between the grooves are all made of aluminum alloy.
The positioning block and the plate between the grooves are of an integrated structure.
The width of the positioning groove is 9.3mm.
The number of the positioning grooves is 88, 30 on the left are high-pitch groups, 28 in the middle are medium-pitch groups, and 30 on the right are low-pitch groups; the groove spacing of the positioning grooves in the high-pitch group is 14.4mm, the groove spacing of the positioning grooves in the medium-pitch group is 14mm, the groove spacing of the positioning grooves in the low-pitch group is 12.7mm, the groove spacing of the adjacent positioning grooves between the high-pitch group and the medium-pitch group is 55mm, and the groove spacing of the adjacent positioning grooves between the medium-pitch group and the low-pitch group is 35mm; the width of the positioning block in the front-rear direction is 35mm, and the height is 12mm; the width of the inter-groove plate in the front-rear direction was 23mm and the height was 8mm. The slot spacing refers to the distance between the centers of adjacent detents.
The upper end surface of the positioning block is provided with yielding holes which are in one-to-one correspondence with the positioning grooves, and the yielding holes are positioned right below the positioning grooves; the depth of the relief hole is 8mm.
The front end face of the positioning block is used for supporting the rear end of the aluminum main rail.
In general, the invention has the following advantages:
1. simple structure and convenient operation.
2. By adopting the invention to assist assembly, the butt assembly is not askew and the gap is uniform.
3. The assembly efficiency is improved, and the repair rate is low.
4. The aluminum alloy is used as the material, the change of the appearance and the dimension is not required to be influenced by weather, the dimension accuracy is high, and the abrasion is not easy.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a left side view of the present invention.
Fig. 4 is a left side view of the present invention in use.
Fig. 5 is a schematic structural view of the butt assembly.
Fig. 6 is a schematic structural view of an aluminum profile.
Wherein, 1 is a butt assembly positioning rack, 2 is a cam, 3 is a shaft bracket, 4 is a screw, 5 is an aluminum general gear, 6 is a positioning block, 7 is a slot plate, 8 is a positioning slot, 9 is a yielding hole, 10 is a high pitch group, 11 is a middle pitch group, and 12 is a low pitch group.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
The butt is assembled with a positioning rack, which comprises a positioning block and a slot plate.
The locating piece is rectangular structure in cross section, and the length direction extends along left and right directions. The upper end face is connected with the inter-groove plate at a rear position, the lower end face is arranged on the assembly platform, the front end face props against the rear end of the aluminum main rail, and the rear end face is flush with the rear end face of the inter-groove plate. The upper end face of the positioning block is provided with yielding holes which are in one-to-one correspondence with the positioning grooves, and the yielding holes are positioned right below the positioning grooves and are used for accommodating springs below the butt assembly.
The inter-groove plates are cube-shaped and are sequentially arranged at intervals along the left-right direction. The upper end surfaces are flush with each other, the front end surfaces are flush with each other, and the rear end surfaces are flush with each other. A locating groove is formed between the adjacent groove plates in a surrounding mode, the width of the locating groove corresponds to the thickness of the cam of the butt assembly, namely, the width of the locating groove is slightly larger than the thickness of the cam, the cam is not inclined after being placed in, and the easy taking and placing of the cam can be met.
The positioning blocks and the plates between the grooves are all made of aluminum alloy. The positioning block and the plate between the grooves are of an integrated structure.
In this embodiment, the width of the positioning groove is 9.3mm. The number of the positioning grooves is 88, 30 on the left are high-pitch groups, 28 in the middle are medium-pitch groups, and 30 on the right are low-pitch groups; the groove spacing of the positioning grooves in the high-pitch group is 14.4mm, the groove spacing of the positioning grooves in the medium-pitch group is 14mm, the groove spacing of the positioning grooves in the low-pitch group is 12.7mm, the groove spacing of the adjacent positioning grooves between the high-pitch group and the medium-pitch group is 55mm, and the groove spacing of the adjacent positioning grooves between the medium-pitch group and the low-pitch group is 35mm; the width of the positioning block in the front-rear direction is 35mm, and the height is 12mm; the width of the inter-groove plate in the front-rear direction was 23mm and the height was 8mm. The depth of the relief hole is 8mm.
When the vertical piano string striking machine is assembled, the invention is propped against the rear end of the aluminum main gear, and the first butt assembly is arranged, so that the shaft bracket is opposite to the mounting hole of the aluminum main gear, and the butt assembly positioning rack can be aligned. All the butt assemblies are placed in sequence, and then all the screws are screwed in sequence. And after the assembly is completed, the assembly positioning rack of the butt is taken away. Gaps among the butt assemblies are vertical and are orderly and uniformly arranged, and production efficiency and machining precision are improved.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (6)
1. The butt assembly positioning rack is characterized in that: comprises a positioning block and a groove plate; the positioning block is of a strip-shaped structure with a rectangular cross section, and the length direction extends along the left-right direction; a plurality of inter-groove plates are arranged at the rear position of the upper end surface of the positioning block, and the inter-groove plates are arranged at intervals along the left-right direction, so that a plurality of positioning grooves which are sequentially arranged along the left-right direction are formed among the inter-groove plates; the width of the positioning grooves corresponds to the thickness of the cams in the butt assemblies, the number of the positioning grooves is the same as that of butt assemblies of a piano, and the spacing of the positioning grooves corresponds to the spacing of the butt assemblies after assembly;
the inter-groove plates are cube-shaped, the rear end faces of the inter-groove plates are aligned with the rear end faces of the positioning blocks, the upper end faces of all the inter-groove plates are aligned with each other, and the front end faces of all the inter-groove plates are aligned with each other;
the upper end surface of the positioning block is provided with yielding holes which are in one-to-one correspondence with the positioning grooves, and the yielding holes are positioned right below the positioning grooves;
the front end face of the positioning block is used for supporting the rear end of the aluminum main rail.
2. The butt assembly positioning rack of claim 1, wherein: the positioning blocks and the plates between the grooves are all made of aluminum alloy.
3. The butt assembly positioning rack of claim 1, wherein: the positioning block and the plate between the grooves are of an integrated structure.
4. The butt assembly positioning rack of claim 1, wherein: the width of the positioning groove is 9.3mm.
5. The butt assembly positioning rack of claim 1, wherein: the number of the positioning grooves is 88, 30 on the left are high-pitch groups, 28 in the middle are medium-pitch groups, and 30 on the right are low-pitch groups; the groove spacing of the positioning grooves in the high-pitch group is 14.4mm, the groove spacing of the positioning grooves in the medium-pitch group is 14mm, the groove spacing of the positioning grooves in the low-pitch group is 12.7mm, the groove spacing of the adjacent positioning grooves between the high-pitch group and the medium-pitch group is 55mm, and the groove spacing of the adjacent positioning grooves between the medium-pitch group and the low-pitch group is 35mm; the width of the positioning block in the front-rear direction is 35mm, and the height is 12mm; the width of the inter-groove plate in the front-rear direction was 23mm and the height was 8mm.
6. The butt assembly positioning rack of claim 5, wherein: the depth of the relief hole is 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711469923.1A CN107978298B (en) | 2017-12-29 | 2017-12-29 | Positioning rack for assembling impact device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711469923.1A CN107978298B (en) | 2017-12-29 | 2017-12-29 | Positioning rack for assembling impact device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107978298A CN107978298A (en) | 2018-05-01 |
| CN107978298B true CN107978298B (en) | 2023-11-14 |
Family
ID=62005372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711469923.1A Active CN107978298B (en) | 2017-12-29 | 2017-12-29 | Positioning rack for assembling impact device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107978298B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4041829A (en) * | 1975-09-30 | 1977-08-16 | Robert Ogden Robeson | Piano pedal assembly |
| CN1447309A (en) * | 2002-03-22 | 2003-10-08 | 雅马哈株式会社 | Hammer limit element with position regulator and combined keyboard instrument with same |
| CN2727898Y (en) * | 2004-05-31 | 2005-09-21 | 陈海伦 | Piano central disk |
| CN101312037A (en) * | 2007-05-25 | 2008-11-26 | 杨治安 | Novel material, novel process, flexible transmission piano struck string system |
| JP2009075405A (en) * | 2007-09-21 | 2009-04-09 | Kawai Musical Instr Mfg Co Ltd | Bat of upright piano |
| CN201741374U (en) * | 2010-08-23 | 2011-02-09 | 罗森鹤 | Clamping bar type striker of a vertical piano |
| JP2013186295A (en) * | 2012-03-08 | 2013-09-19 | Kawai Musical Instr Mfg Co Ltd | Center rail of upright piano |
| CN103440856A (en) * | 2013-09-17 | 2013-12-11 | 广州珠江钢琴集团股份有限公司 | Device for correcting piano string code and assembly method of string code harmonic plate |
| CN104191242A (en) * | 2014-09-15 | 2014-12-10 | 广州珠江恺撒堡钢琴有限公司 | Semi-automatic assembling equipment and method for piano regulating rails in actions |
| CN204117574U (en) * | 2014-09-15 | 2015-01-21 | 广州珠江恺撒堡钢琴有限公司 | Piano regulates the assembling jig of frequency modulator |
| CN105632462A (en) * | 2016-01-12 | 2016-06-01 | 森鹤乐器股份有限公司 | Method for assembling vertical piano string-striking machine |
| CN206097881U (en) * | 2016-10-19 | 2017-04-12 | 宜昌金宝乐器制造有限公司 | Triangle musical instrument action support |
-
2017
- 2017-12-29 CN CN201711469923.1A patent/CN107978298B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4041829A (en) * | 1975-09-30 | 1977-08-16 | Robert Ogden Robeson | Piano pedal assembly |
| CN1447309A (en) * | 2002-03-22 | 2003-10-08 | 雅马哈株式会社 | Hammer limit element with position regulator and combined keyboard instrument with same |
| CN2727898Y (en) * | 2004-05-31 | 2005-09-21 | 陈海伦 | Piano central disk |
| CN101312037A (en) * | 2007-05-25 | 2008-11-26 | 杨治安 | Novel material, novel process, flexible transmission piano struck string system |
| JP2009075405A (en) * | 2007-09-21 | 2009-04-09 | Kawai Musical Instr Mfg Co Ltd | Bat of upright piano |
| CN201741374U (en) * | 2010-08-23 | 2011-02-09 | 罗森鹤 | Clamping bar type striker of a vertical piano |
| JP2013186295A (en) * | 2012-03-08 | 2013-09-19 | Kawai Musical Instr Mfg Co Ltd | Center rail of upright piano |
| CN103440856A (en) * | 2013-09-17 | 2013-12-11 | 广州珠江钢琴集团股份有限公司 | Device for correcting piano string code and assembly method of string code harmonic plate |
| CN104191242A (en) * | 2014-09-15 | 2014-12-10 | 广州珠江恺撒堡钢琴有限公司 | Semi-automatic assembling equipment and method for piano regulating rails in actions |
| CN204117574U (en) * | 2014-09-15 | 2015-01-21 | 广州珠江恺撒堡钢琴有限公司 | Piano regulates the assembling jig of frequency modulator |
| CN105632462A (en) * | 2016-01-12 | 2016-06-01 | 森鹤乐器股份有限公司 | Method for assembling vertical piano string-striking machine |
| CN206097881U (en) * | 2016-10-19 | 2017-04-12 | 宜昌金宝乐器制造有限公司 | Triangle musical instrument action support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107978298A (en) | 2018-05-01 |
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