CN105632462A - Method for assembling vertical piano string-striking machine - Google Patents

Abstract

The invention relates to a method for assembling a vertical piano string-striking machine. The vertical piano string-striking machine comprises more than one thousand parts. The sub-system division under systems is required; small subsets are utilized to reflect the overall situation; 88 string-striking machine systems are contained in a piano; and each of the string-striking machine systems is divided into four small systems, namely, a rotating striking system, a sound-stopping system, a linking system and an adjusting system. According to the assembling method, the three small sub-systems, namely, the rotating striking system, the sound-stopping system and the linking system are independently assembled, and meanwhile, the adjusting system is assembled with a head gear, so that the four sub-systems can be simultaneously assembled and the assembling efficiency is increased; 88 rotating striking systems, 88 sound-stopping systems and 88 linking systems are then mounted on the head gear in turn; 88 same sub-systems are simultaneously assembled in a manual mounting mode, so that the mounting degree between the same sub-systems can be unified to a certain extent; and meanwhile, the mounting difficulty is reduced and the labor efficiency is increased due to the uniform mounting mode.

Description

A kind of upright piano action assemble method

Technical field

The present invention relates to hammered string instrument assemble method, especially a kind of upright piano action assemble method.

Background technology

Parts in upright piano action are up to thousands of, and existing upright piano action assemble method, installation difficulty is big, and labor efficiency is low.

Summary of the invention

The technical issues that need to address of the present invention are to provide a kind of upright piano action assemble method, and the subsystem that three little is turned the system of hitting by this assemble method, only system for electrical teaching, and linked system first individually assembles; , adjustment system and total shelves being assembled, such four subsystems can carry out packaging technology simultaneously meanwhile, improves the work efficiency assembled. Then installing 88 turns on total shelves successively and hit system, 88 are stopped system for electrical teaching, 88 linked systems. Adopt manually installed mode, install while 88 same subsystem, it is possible to the installation degree between unified same subsystem to a certain extent, meanwhile, because of the unification of mounting means, reduce installation difficulty, raise labour efficiency;

For solving the problems referred to above, the technical solution used in the present invention is: a kind of upright piano action assemble method, it is characterised in that: specifically include following steps:

1. a upright piano action assemble method, it is characterised in that: specifically include following steps:

One. the subsystem that three are little being turned the system of hitting, only system for electrical teaching, linked system individually assembles, and, adjustment system and total shelves is assembled meanwhile;

(1). assemble to turn and hit system

1. 45 turning device cams are placed on mould bases, lift concora crush tight by glue chamois leather; It is uniformly coated with one layer of white glue along 1/2 under turning device cam B facial plane, with A along for benchmark, by smooth on it at the bottom of smooth turning device, rub with hands and be convinced, along being uniformly coated with one layer of white glue in turning device cam C plane, after felt at the bottom of turning device is affixed on location of C, rubs with hands and be convinced, distinguish at the bottom of smooth turning device with flatiron and end felt, back and forth several times; In turning device cam A plane from lower along being uniformly coated with one layer of white glue, take a turning device chamois leather, with A plane for benchmark, by the whole reality of flat blade, it is ensured that chamois leather and A face close joint, wait to do; The turning device chamois leather other end about 1/3 face is uniformly coated with glue, after white glue is also coated in D face, pressurizes 20 minutes; It is uniformly coated with one layer of glue at 1/3 place at the later half place of gluing surface, with turning device chamois leather face, A place for benchmark, pastes a turning device felt, rub with hands after putting down, pressurize 20 minutes;

2. cut chamois leather, first cut unnecessary felt, the strip turning device posting felt is posted facing up of chamois leather, be placed on and cut travelling workpiece on mould and cut, make felt, turning device chamois leather consistent with turning device cam width, without crooked;

3. band climbed by glue, will climb belt leather and face down, and be respectively positioned on the mould in positioning needle, takes braking wooden handle, and the end face of impression short end is viscous takes a small amount of glue. Stretch and climb band, the braking wooden handle of glue will be speckled with to climb band vertical, with brake wooden handle termination diameter for positioning edge, bond, wait a moment and climb band and take out from positioning needle and put into boxes;

4. the combination of turning device Cam braking wood, adjusts upper and lower mould distance according to dimensional requirement, and locks stop screw; Glue being climbed the braking wooden handle with one end and immerses glue degree of depth 3-4mm, white glue is enclosed in uniform dip-coating one, fills in braking wood hole and rotates 1-2 circle, makes glue uniform adhesion, climbs band and is positioned at the centre of braking wood lower end, without substantially crooked; Will the other end of braking wooden handle, immerse 3-5mm in glue deep, make glue uniform adhesion on it, fill in turning device Cam braking wooden handle hole, rotating 1-2 circle makes periphery glue uniform, then is put in fixture to make braking wooden handle press-in turning device cam, take out and check after unclamping; Discharging in order to 15, place in another fine setting pressing mold and compress, make turning device cam uniform with two plane clearances on braking wood both sides, braking wooden handle is 90 �� with turning device cam hoe, and adjacent two workpiece maximum erroies are less than 0.3s;

5. wear spring wire, spring wire one end thin copper wire is twisted into taper, so that through bobbin hole, it is positioned in the spring groove of turning device cam by hooking spring, then spring wire is each passed through turning device cam line axis hole, spring eye, turning device cam line axis hole, and strain axis till full 90 of string, thus forming the hammer butt of a strip, make spring without obvious deformation, stirring spring, spring wire is without substantially loosening phenomenon, and rear cutting knife cuts along the gap of hammer butt, cutting rear spring hole is substantially flush with turning device cam, without exposing residual line;

6. around hooking spring line, first straight for turning device pedestal is arranged on particular manufacturing craft, restriction because of die length, can fixed qty it be once 40, then clamp, the pin of diameter 2mm is immersed in white glue water, then the glue on dial is coated onto in the hook spring wire casing of turning device pedestal, from mould left end, the right hand is with S shape coiling, hook spring line is fixed on above hook spring groove, until till full 40, successively the line linked together is drawn disconnected with blade, entered in groove hook spring cableties before in groove, the glue solidifies, unclamp fixture, in production storing box, require that groove is outer to overflow without cull, bonding is firmly, hook spring line not expose,

7. turning device pedestal combination, before operation, reply initial workpiece is tested, and namely axonometer should drop on turning device cam hole and center, pedestal hole when declining respectively, red needle descending depth is adjusted simultaneously; During operation, first the basal plane of turning device cam and turning device pedestal is close to work top and backer, workpiece is pushed down with finger, then axonometer is included in nib, axonometer is pressed into workpiece, after many for front end remaining years reached pin cut off, reach resistance between 0.6 �� 0.2N with ergometer inspection is raw, take out workpiece and discharge in order;

8. the combination of turning device cam hammerhead, adjusts upper and lower mould distance according to dimensional requirement, and locks stop screw; Hammerhead handle one end is immersed glue degree of depth 3-4mm, and white glue is enclosed in uniform dip-coating one, fills in and rotates 1-2 circle in the hammerhead delthyrium on hammerhead, makes glue uniform adhesion; By the other end of hammerhead handle, immersing degree of depth 3-5mm in glue, white glue is enclosed in uniform dip-coating one, makes glue uniform adhesion on it, fills in turning device cam hammerhead delthyrium, rotate 1-2 circle and make periphery glue uniform, then be put in fixture and make hammerhead handle press-in turning device cam;

(2). assemble only system for electrical teaching

1. spring wire worn by pedestal, spring wire one end thin copper wire is twisted into taper, so that through bobbin hole, only sound spring is positioned in the spring groove of sound stopping device pedestal, then spring wire is each passed through sound stopping device pedestal bobbin hole, spring eye, sound stopping device pedestal bobbin hole, and strain axis till full 90 of string, thus forming the hammer butt of a strip, make spring without obvious deformation, stirring spring, spring wire is without substantially loosening phenomenon, and rear cutting knife cuts along hammer butt gap, cutting rear spring hole is substantially flush with turning device cam, without exposing residual line;

2. punching only sound screw mandrel, take three only sound screw mandrel put into mould, three are stopped tuning rod and put into counterdie, adjust the concentricity of upper and lower mould, make only sound screw mandrel alignment only sound screw hole, in press-in only tuning rod, it it is 90 �� with only tuning rod upper surface, and only sound screw mandrel is without obvious deformation, only sound screw mandrel is inconsistent without substantially turnover, and only tuning rod damages phenomenon without avulsion etc.;

3. sound stopping device pedestal combination, before operation, reply initial workpiece is tested, and should drop on only tuning rod hole and center, pedestal hole respectively, red needle descending depth is adjusted simultaneously when namely axonometer declines; During operation, first the basal plane of only tuning rod and sound stopping device pedestal is close to work top and backer, pushes down workpiece with finger, then axonometer is included in nib, axonometer is pressed into workpiece, after many for front end remaining years reached pin cut off, take out workpiece and discharge in order;

(3). assemble linked system

1. glue general assembly, at the bottom of gluing gangbar, by 90 gangbar bottom surfaces upwards, it is placed on mould bases, by the adhesive tape trisection of 880 �� 28 �� 4, then rapidly and evenly apply glue, with collar extension for baseline, that is convinced is placed on hammer butt bottom surface, and rub with hands and to be convinced, put pressing plate, pressurize more than 1h with the pressure of 60 �� 10N/cm, after release, cleaning exposes glue neatly stacks; Bar unnecessary for two ends is cut, repaiies and expose glue, utilize knife rest that the end is cut, sequentially put in dish; Midway is sampling observation constantly, and carries out labelling and complete to do over again; With 90 bolsters for a combination, profit is gluing bolster felting in a like fashion;

2. rotation bolster bar, is placed on bolster felting forward on mould bases towards upper, rod aperture, and bolster bar straight burr end inserts in the power head bore rotated simultaneously, clamping; Bolster rod aperture being directed at bolster bar, slightly firmly pushes away forward, bolster bar is shot in bolster automatically, discharges in order after taking-up;

3. rush spoon nail, spoon nail is put into upper mould, gangbar puts into counterdie, adjusts the concentricity of upper and lower mould, makes spoon nail alignment spoon nail, little cylinder-pressing spoon is followed closely, spoon nail is pressed in gangbar by big cylinder, and is 90 �� with direction, gangbar upper surface, and spoon is followed closely without defects such as obvious deformation, spoon nail is inconsistent without substantially turnover, and gangbar damages phenomenon without avulsion etc.;

4. band hook is climbed in punching, band hook will be climbed and put into die cavity, and push down with finger, depress switch, make to climb band hook and pour in gangbar, measure after taking-up, climb band and hook without substantially deformation, climb the triangle upper end with hooking and substantially become a horizontal line, without tilting, gangbar is without, after the phenomenon such as avulsion, damage, continuing to produce, and workpiece arranges in order;

5. rush bolster bar, gangbar is put in counterdie, adjusts the concentricity of upper and lower mould, bolster bar is pressed into end and soaks a little lubricant, it is put in top mold frame, and push down with hands, pour gangbar, after the press-in of bolster bar, it is exposed at upper part to include the length dimension of bolster and control at 96 �� 0.2mm, checking size after taking-up, continue to produce after qualified, workpiece arranges in order;

6. linkage device shaft bracket combination, before operation, reply initial workpiece is tested, and should drop on linkage rod aperture and center, pedestal hole respectively, red needle descending depth is adjusted simultaneously when namely axonometer declines; During operation, first the basal plane of gangbar and pedestal should be close to work top and backer, push down workpiece with finger, then axonometer is included in nib, axonometer is pressed into workpiece, after many for front end remaining years reached pin cut off, take out workpiece and discharge in order; Requiring that pedestal rotates sensitive, gravity energy declines or slightly shake can decline as well, not loose expansion, and gangbar axonometer hole and pedestal are in coaxial state, must not have pollution and defect;

7. ejector rod shaft bracket combination, before operation, reply initial workpiece is tested, and namely axonometer should drop on jogger hole and center, pedestal hole when declining respectively, red needle descending depth is adjusted simultaneously; During operation, first the basal plane of push rod and ejector rod shaft bracket should be close to work top and backer, push down workpiece with finger, then axonometer is included in nib, axonometer is pressed into workpiece, after many for front end remaining years reached pin cut off, take out workpiece and discharge in order;

8. glue push rod, stamping machine verification before operation, regulate the Aligning degree of press depth and push rod and clutch push rod groove, it is desirable to pedestal and the symmetrical degree of clutch push rod groove after assembling control between 0.15, take out 30 push rods, appropriate glue is coated at pedestal gluing position and gangbar groove gluing position stand-by, take a push rod and put into mould, make its smooth backer, gangbar puts into counterdie, after making its backer with work top be close to, sink switch, carry out viscous stranding with the hands, take out after unclamping, the centrad of detection push rod and perpendicularity, and put in order, require glued firm, four sides has a little glue to overflow, but not sagging, ejector rod shaft bracket and gangbar groove combination gapless, ejector rod shaft bracket and gangbar are 90 �� of angles, ejector rod shaft bracket and the symmetrical degree of clutch push rod groove control between 0.15, must not there is pollution, defect, life reaches movable sensitive, do not loosen,

9. glue push rod spring, pinches the small end of push rod spring with finger, immerses in white glue by the big end of spring, it is advisable with the closely sealed circle of submergence, then includes in gangbar spring eye, slightly rotate, so as to sink to the bottom, then press push rod, put successively, requiring that push rod spring is without crooked, basic vertical with gangbar all directions, spring heights is about 22.8 �� 0.5mm, must not too much bond, bonding firmly, must not have pollution, sagging, it is allowed to have glue from overflowing;

(4). adjustment system is installed

1. adjusting knob is installed, and will be equipped with the screw of adjusting knob alignment and regulates the hole of shelves, is screwed in adjustment shelves.

2. the crab claw are installed, and instill appropriate white glue, be screwed in by the crab claw on total shelves in crab claw hole;

3. lift shelves to install, lift a grade the right for hinge groove be adhesive on total shelves the three of thickness 1.5 �� length 35, the left side with to lift grade the right of hinge groove substantially equal, and smooth with finger; First it is through at hinge jaw respectively lifting grade hinge, lift that grade hinge is shaped as that the left side is opened 1, open 3 of the right, then by making the hole lifting shelves and the fixed value that two centre distances are L in the hole of leftmost support on total shelves, this fixed value can be determined according to practical situation, tightly lift shelves with right hand pendulum, make to lift grade hinge and lift edge in grade hinge groove on total shelves, screw of then screwing on, requirement is lifted after a grade hinge installs, lift shelves and should substantially without play, and rotate sensitive, without hindrance sense;

4. push rod braking shelves are installed, 3 push rods being braked gear and is screwed in push rod gear and substantially parallel, every push rod braking gear has 3 push rod braking gear screws, and when being screwed into, 3 push rod braking gear screws are alternately screwed into simultaneously, require that 3 push rod braking gears should be substantially parallel, and firm combination;

5. regulate shelves to install, rotating total shelves makes clutch front face operator, first set screw is screwed in the hole regulating shelves, the length of all reserved 3-4mm, then in the groove including the crab claw in that performs regulating shelves set screw, the adjustment that clutch rises to push rod head and turning device cam is made to enclose when contacting, the center alignment of push rod head regulates the center of forestick circle, after requiring push rod shelves to install, wood cycle basis does not originally tilt, rise with finger push clutch, turning device cam follows the anglec of rotation, when turning device cam rotates 3 ��-4 ��, regulate shelves and should play position-limiting action, when clutch does not promote, regulating circle with push rod head distance is 4mm,

Two. install to turn and hit system

(1). install to turn and hit system, total shelves are included in mould bases, adjusts total shelves face, make total shelves turning device pedestal vertical oriented manipulation person, fixing mould bases, from high pitch end the 88th, turning device is installed; The spacing stainless steel silk of pedestal by �� 1.8 is put in total shelves groove, and left hand takes turning device, and the right hand takes electric screw driver, and turning device is fixed in total shelves, turning device locating slot alignment pedestal positive stop strip, fixes 88 turning device successively; Wherein, initial workpiece turning device is twisted after well, whether detects turning device cam with total shelves notch angle in 90 �� with ruler, if any sideslip, then makes first successive step;

(2). correct turning device sideslip at the volley, level lifts 5-8 turning device, make it rotate, the size estimated between each turning device cam in rotation and direction change, then according to the size of its change and direction, it is encased inside between turning device pedestal and total shelves with paper slip in the reverse direction, paper slip is encased inside the degree of depth to be encountered or is about to encounter positive stop strip, must not only pad above a bit, also must not exceed positive stop strip, paper slip broadband is about 2.5mm, paper slip position is on turning device pedestal foot, if sideslip is corrected, hoe is sideslip still, then can paper slip pad between turning device pedestal lower end and notch, when making turning device reach reciprocating about 45 �� of pin along Shen, detect by an unaided eye, it is substantially free of the sign to both sides sideslip, turning device is moved without deviation phenomenon, between turning device, gap is uniformly coordinated, firm combination, pollution-free and defect, part is neat, correction sideslip terminates, and whole screws are tightened after once again, installs push rod braking shelves,

Three. only system for electrical teaching is installed

(1). unclamp the fixing bayonet socket of installation mould bases, total shelves are moved in the direction of the clock 90 �� and locks;

(2). put into total shelves sound stopping device by pedestal rustless steel positive stop strip and install in groove, from high pitch end, screw is inserted in sound stopping device pedestal, being directed at total shelves eye, pedestal rustless steel positive stop strip is put in pedestal detent, after pressing, tighten screw, install in order successively;

(3). unclamp bundle tool bayonet socket, total shelves are moved in the direction of the clock 90 ��, adjusts the clearance distance stopping upper and lower two splayings of tuning rod and adjacent two, to uniformly coordinating;

(4). being fixed on bottom district sound stopping device the first key with a Masson Pine ruler one end, the other end is fixed on last key of sound stopping device;

(5). being inserted in by sound head grain only in sound iron wire, sound head grain contacts with Masson Pine ruler, and in the same direction, parallel;

(6). adjust iron wire, coordinate bolster iron wire, climb with the gap between silk, sound head grain; Make only upper and lower two ends of tuning rod uniform with adjacent segment; Band silk is climbed in adjustment, to coordinate the height of push rod, and the depth of parallelism of gangbar; Shelves are lifted in rotation, adjust sound stopping device fine adjustment screw, make the concordance lifting shelves and sound stopping device action synchronization and all sound stopping device actions;

Four. linked system is installed

(1). linked system is installed, unclamps the fixing bayonet socket of installation mould bases, rotate total shelves, make the linkage device shaft bracket notch oriented manipulation person of total shelves, fixing mould bases, start clutch is installed from high pitch end the 88th, put in total shelves groove by the �� 1.8 spacing copper bar of pedestal, left hand takes clutch, the right hand takes electric screw driver, clutch is fixed in total shelves, the clutch locating slot alignment spacing copper bar of pedestal, during screw tightening, Zong Dangyan center and pedestal eye center should be unison, the turning device cam that push rod is corresponding should be correct, then driving screws, too not tight, motionless as well, linkage device shaft bracket screw is not also tightened, but slightly packing ring impression on pedestal, whether measure between gangbar and notch in 90 �� with angle square again, if any deviation, make just successive step, remaining clutch is fixed on total shelves as stated above,

Five. inspection, warehouse-in

Hammered string instrument after step 4 is made, tests, after qualified, and packaging warehouse-in.

Further technical scheme is, described step one. (3) .4 will climb band hook put into die cavity before, pouring end soak some lubricants.

Compared with prior art, having the beneficial effect that acquired by the present invention:

The subsystem that three little is turned the system of hitting by this assemble method, only system for electrical teaching, and linked system first individually assembles; , adjustment system and total shelves being assembled, such four subsystems can carry out packaging technology simultaneously meanwhile, improves the work efficiency assembled. Then installing 88 turns on total shelves successively and hit system, 88 are stopped system for electrical teaching, 88 linked systems. Adopt manually installed mode, install while 88 same subsystem, it is possible to the installation degree between unified same subsystem to a certain extent, meanwhile, because of the unification of mounting means, reduce installation difficulty, raise labour efficiency.

Accompanying drawing explanation

Fig. 1 is the Making programme figure of a kind of upright piano action assemble method of the present invention;

Fig. 2 is the structural representation of hammered string instrument;

Fig. 3 is that piano striking machine turns and hits system left view;

Fig. 4 is that piano striking machine stops system for electrical teaching left view;

Fig. 5 is piano striking machine linked system left view;

Fig. 6 is that piano striking machine regulates system left view;

Fig. 7 is that piano hits total shelves left view;

Fig. 8 is that turning device cam installs station diagram.

Wherein: 1, hammerhead; 2, hammerhead handle; 3, turning device cam; 4, braking wooden handle; 5, braking wood; 6, spring is hooked; 7, spring line is hooked; 8, turning device pedestal; 9, sound screw mandrel is stopped; 10, tuning rod is stopped; 11, sound spring is stopped; 12, sound stopping device pedestal; 13, bolster; 14, bolster bar; 15, push rod; 16, climb band to hook; 17, push rod spring; 18, gangbar; 19, spoon nail; 20, linkage device shaft bracket; 21, ejector rod shaft bracket; 22, set screw; 23, shelves are regulated; 24, Eriocheir sinensis pincers; 25, adjusting knob.

Detailed description of the invention

Below in conjunction with embodiment, the present invention is carried out further details of narration.

As illustrated in figs. 2 through 8, for the concrete structure schematic diagram of a kind of upright piano action of the present invention.

A kind of upright piano action assemble method described in the present embodiment, specifically includes following steps:

One. the subsystem that three are little being turned the system of hitting, only system for electrical teaching, linked system individually assembles, and, adjustment system and total shelves is assembled meanwhile;

(1). assemble to turn and hit system

1. glue chamois leather, by 45, (one group of hammered string instrument has 88 turning device cams 3, consider the factors such as the unnecessary damage that in the convenience calculated and manual operations and handling process, marginal portion occurs, selecting 90 when producing is one group, and some other is organize the parts thereof occurred to take this processing mode equally with 88. And during turning device cam 3 glue chamois leather, need because of chamois leather length and manual convenience needs, one group being divided into two groups, i.e. every group 45) turning device cam 3 is placed on mould bases, lifts concora crush tight; It is uniformly coated with one layer of white glue along 1/2 under turning device cam 3B facial plane, with A along for benchmark, by smooth on it at the bottom of smooth turning device, rub with hands and be convinced, along being uniformly coated with one layer of white glue in turning device cam 3C plane, after felt at the bottom of turning device is affixed on corresponding location of C, rubs with hands and be convinced, distinguish at the bottom of smooth turning device with flatiron and end felt, back and forth several times; In turning device cam 3A plane from lower along being uniformly coated with one layer of white glue, take a turning device chamois leather, with A plane for benchmark, by the whole reality of flat blade, it is ensured that chamois leather and A face close joint, wait to do; The turning device chamois leather other end about 1/3 face is uniformly coated with glue, after white glue is also coated in D face, pressurizes 20 minutes; It is uniformly coated with one layer of glue at 1/3 place at the later half place of gluing surface, with turning device chamois leather face, A place for benchmark, pastes a turning device felt, rub the upper iron clamp of folder after putting down with hands, pressurize 20 minutes; Requiring each felt firm pasting, gluing puts in place, and without substantially exposing cull, without stained, the turning device chamois leather within E region should have the state of tensioner, without obvious bump mark;

2. cut chamois leather, first cut unnecessary felt, the strip turning device posting felt is posted facing up of chamois leather, be placed on and cut travelling workpiece on mould and cut, make felt, turning device chamois leather consistent with turning device cam 3 width, without crooked;

3. band climbed by glue, will climb belt leather and face down, and be respectively positioned on the mould in positioning needle, takes braking wooden handle 4, and the end face of impression short end is viscous takes a small amount of glue. Stretch and climb band, the braking wooden handle 4 of glue will be speckled with to climb band vertical, with brake wooden handle 4 termination diameter for positioning edge, bond, wait a moment and climb band and take out from positioning needle and put into boxes;

4. the combination of turning device Cam braking wood, adjusts upper and lower mould distance according to dimensional requirement, and locks stop screw; By glue, the braking wooden handle 4 climbed with one end immerses glue degree of depth 3-4mm, and white glue is enclosed in uniform dip-coating one, fills in braking wood hole and rotates 1-2 circle, make glue uniform adhesion, climbs band and be positioned at the centre braking wooden 5 lower ends, without substantially crooked; Will the other end of braking wooden handle 4, immerse 3-5mm in glue deep, make glue uniform adhesion on it, fill in turning device Cam braking wooden handle hole, rotating 1-2 circle makes periphery glue uniform, then is put in fixture and makes braking wooden handle 4 be pressed into turning device cam 3, takes out and check after unclamping; Discharge in order to 15 (such as one. described in (1) .1, turning device cam 3 pastes chamois leather often group and is 45 and adopts 15 simply it to be divided into 3 groups to be processed herein, shorten the length of each group, the area of processing table top can be reduced with this, reduce the volume of fine setting pressing mold, reduce manual difficulty), place in another fine setting pressing mold and compress, make turning device cam 3 and two plane clearances braking wooden 5 both sides uniform, braking wooden handle 4 and turning device cam hoe are 90 ��, and adjacent two workpiece maximum erroies are less than 0.3s;

5. wear spring wire, spring wire one end thin copper wire is twisted into taper, so that through bobbin hole, it is positioned in the spring groove of turning device cam 3 by hooking spring 6, then spring wire is each passed through turning device cam line axis hole, spring eye, turning device cam line axis hole, and strain axis until full 90 of string (such as one. described in (1) .1) till, thus forming the hammer butt of a strip, make spring without obvious deformation, stir spring, spring wire is without substantially loosening phenomenon, cut along the gap of hammer butt with cutting knife afterwards, cutting rear spring hole is substantially flush with turning device cam, without exposing residual line,

6. around hooking spring line, first straight for turning device pedestal 8 is arranged on particular manufacturing craft, restriction because of die length, can fixed qty it be once 40, then clamp, the pin of diameter 2mm is immersed in white glue water, then the glue on dial is coated onto in the hook spring wire casing of turning device pedestal 8, from mould left end, the right hand is with S shape coiling, hook spring line 7 is fixed on above hook spring groove, until till full 40, successively the line linked together is drawn disconnected with blade, buckled in groove hook spring line 7 before in groove, the glue solidifies, unclamp fixture, in production storing box, require that groove is outer to overflow without cull, bonding is firmly, hook spring line 7 not expose,

7. turning device pedestal combination, before operation, reply initial workpiece is tested, and namely axonometer should drop on turning device cam hole and center, pedestal hole when declining respectively, red needle descending depth is adjusted simultaneously; During operation, first the basal plane of turning device cam 3 and turning device pedestal 8 is close to work top and backer, workpiece is pushed down with finger, then axonometer is included in nib, axonometer is pressed into workpiece, after many for front end remaining years reached pin cut off, reach resistance between 0.6 �� 0.2N with ergometer inspection is raw, take out workpiece and discharge in order; Requiring that turning device pedestal 8 rotates sensitive, gravity energy declines or slightly shake can decline as well, not loose expansion, after static 24h, is measured as 0.4 �� 0.15N with ergometer, and turning device camshaft pin hole and turning device pedestal 8 are in coaxial state, must not have pollution and defect;

8. the combination of turning device cam hammerhead, adjusts upper and lower mould distance according to dimensional requirement, and locks stop screw; Hammerhead handle 2 one end is immersed glue degree of depth 3-4mm, and white glue is enclosed in uniform dip-coating one, fills in and rotates 1-2 circle in the hammerhead delthyrium on hammerhead 1, makes glue uniform adhesion; By the other end of hammerhead handle 2, immersing degree of depth 3-5mm in glue, white glue is enclosed in uniform dip-coating one, make glue uniform adhesion on it, fill in turning device cam hammerhead delthyrium, rotate 1-2 circle and make periphery glue uniform, then be put in fixture and make hammerhead handle 2 be pressed into turning device cam 3;

(2). assemble only system for electrical teaching

1. spring wire worn by pedestal, and spring wire is also known as Planta La flavescens (Fabricius)�� bone, specification 17 strands �� 850. Spring wire one end thin copper wire is twisted into taper, so that through bobbin hole, only sound spring 11 is positioned in the spring groove of sound stopping device pedestal 12, then spring wire is each passed through sound stopping device pedestal bobbin hole, spring eye, sound stopping device pedestal bobbin hole, and strain axis till string full 90 (in (1) as described in 1), thus forming the hammer butt of a strip, make spring without obvious deformation, stir spring, spring wire is without substantially loosening phenomenon, cutting along hammer butt gap with cutting knife afterwards, cutting rear spring hole is substantially flush with turning device cam 3, without exposing residual line;

2. punching only sound screw mandrel, the only sound screw mandrel 9 that mould once can be put into is three, thus take three only sound screw mandrel 9 put into mould, three only tuning rod 10 put into counterdie, adjust the concentricity of upper and lower mould, make only sound screw mandrel 9 alignment only sound screw hole, in press-in only tuning rod 10, it is 90 �� with only tuning rod 10 upper surface, and stops sound screw mandrel 9 without obvious deformation, only sound screw mandrel 9 is inconsistent without substantially turnover, and only tuning rod 10 damages phenomenon without avulsion etc.;

3. sound stopping device pedestal combination, before operation, reply initial workpiece is tested, and should drop on only tuning rod hole and center, pedestal hole respectively, red needle descending depth is adjusted simultaneously when namely axonometer declines; During operation, first the basal plane of only tuning rod 10 and sound stopping device pedestal 12 is close to work top and backer, pushes down workpiece with finger, then axonometer is included in nib, axonometer is pressed into workpiece, after many for front end remaining years reached pin cut off, take out workpiece and discharge in order; Requiring that sound stopping device pedestal 12 rotates sensitive, gravity energy declines or slightly shake can decline as well, not loose expansion, and only tuning rod axonometer hole and pedestal are in coaxial state, must not have pollution and defect;

(3). assemble linked system

1. glue general assembly, at the bottom of gluing gangbar, by 90 gangbar 18 bottom surfaces upwards, it is placed on mould bases, by the adhesive tape trisection of 880 �� 28 �� 4, then rapidly and evenly apply glue, with collar extension for baseline, that is convinced is placed on hammer butt bottom surface, and rub with hands and to be convinced, put pressing plate, pressurize more than 1h with the pressure of 60 �� 10N/cm, after release, cleaning exposes glue neatly stacks; Bar unnecessary for two ends is cut, repaiies and expose glue, utilize knife rest that the end is cut, sequentially put in dish; Midway is sampling observation constantly, and carries out labelling and complete to do over again; With 90 bolsters 13 for a combination, profit is gluing bolster felting in a like fashion;

2. rotation bolster bar, is placed on bolster felting forward on mould bases towards upper, rod aperture, and bolster bar 14 straight burr end inserts in the power head bore rotated simultaneously, clamping; Bolster rod aperture being directed at bolster bar 14, slightly firmly pushes away forward, bolster bar 14 is shot in bolster 13 automatically, discharges in order after taking-up; Requiring firm combination, without sliding tooth or be split up phenomenon, bolster 13 is pollution-free, defect and degumming phenomenon;

3. rush spoon nail, spoon is followed closely 19 and puts into upper mould, gangbar 18 puts into counterdie, adjusts the concentricity of upper and lower mould, makes spoon nail 19 alignment spoon nail, little cylinder-pressing spoon nail 19, spoon is followed closely in 19 press-in gangbar 18 by big cylinder, and is 90 �� with direction, gangbar 18 upper surface, and spoon nail 19 is without defects such as obvious deformation, spoon nail 19 is inconsistent without substantially turnover, and gangbar 18 damages phenomenon without avulsion etc.;

4. band hook is climbed in punching, will climb band hook 16 and put into die cavity, it is preferred that, to climb band hook 16 put into die cavity before, pour end soak some lubricants, push down with finger, depress switch, make to climb band hook 16 and pour in gangbar 18, measure after taking-up, climb band and hook 16 without substantially deformation, climbing the triangle upper end with hooking 16 and substantially become a horizontal line, without tilting, gangbar 18 is without after the phenomenon such as avulsion, damage, continuing to produce, workpiece arranges in order;

5. rush bolster bar, gangbar 18 is put in counterdie, adjusts the concentricity of upper and lower mould, bolster bar 14 is pressed into end and soaks a little lubricant, it is put in top mold frame, and push down with hands, pour gangbar 18, after bolster bar 14 press-in, it is exposed at upper part to include the length dimension of bolster 13 and control at 96 �� 0.2mm, checking size after taking-up, continue to produce after qualified, workpiece arranges in order; Requiring that bolster bar 14 is without phenomenons such as obvious deformation, bolster bar 14 coordinates with bolster 13 and gangbar 18 not damaged;

6. linkage device shaft bracket combination, before operation, reply initial workpiece is tested, and should drop on linkage rod aperture and center, pedestal hole respectively, red needle descending depth is adjusted simultaneously when namely axonometer declines; During operation, first the basal plane of gangbar 18 and pedestal should be close to work top and backer, push down workpiece with finger, then axonometer is included in nib, axonometer is pressed into workpiece, after many for front end remaining years reached pin cut off, take out workpiece and discharge in order; Requiring that pedestal rotates sensitive, gravity energy declines or slightly shake can decline as well, not loose expansion, and gangbar axonometer hole and pedestal are in coaxial state, must not have pollution and defect;

7. ejector rod shaft bracket combination, before operation, reply initial workpiece is tested, and namely axonometer should drop on jogger hole and center, pedestal hole when declining respectively, red needle descending depth is adjusted simultaneously; During operation, first the basal plane of push rod 15 and ejector rod shaft bracket 21 should be close to work top and backer, push down workpiece with finger, then axonometer is included in nib, axonometer is pressed into workpiece, after many for front end remaining years reached pin cut off, take out workpiece and discharge in order; Requiring that ejector rod shaft bracket 21 rotates sensitive, gravity energy declines or slightly shake can decline as well, not loose expansion, and push rod axonometer hole and ejector rod shaft bracket 21 are in coaxial state, must not have pollution and defect;

8. glue push rod, stamping machine verification before operation, regulate the Aligning degree of press depth and push rod 15 and clutch push rod groove, it is desirable to pedestal and the symmetrical degree of clutch push rod groove after assembling control between 0.15, take out 30 push rods 15, appropriate glue is coated at pedestal gluing position and gangbar 18 groove gluing position stand-by, take a push rod 15 and put into mould, make its smooth backer, gangbar 18 puts into counterdie, after making its backer with work top be close to, sink switch, carry out viscous stranding with the hands, take out after unclamping, the centrad of detection push rod 15 and perpendicularity, and put in order, require glued firm, four sides has a little glue to overflow, but not sagging, ejector rod shaft bracket 21 and gangbar groove combination gapless, ejector rod shaft bracket 21 and gangbar 18 are in 90 �� of angles, ejector rod shaft bracket 21 and the symmetrical degree of clutch push rod groove control between 0.15, must not there is pollution, defect, life reaches movable sensitive, do not loosen,

9. glue push rod spring, pinches the small end of push rod spring 17 with finger, immerses in white glue by the big end of spring, it is advisable with the closely sealed circle of submergence, then includes in gangbar spring eye, slightly rotate, so as to sink to the bottom, then press push rod 15, put successively, requiring that push rod spring 17 is without crooked, basic vertical with gangbar 18 all directions, spring heights is about 22.8 �� 0.5mm, must not too much bond, bonding firmly, must not have pollution, sagging, it is allowed to have glue from overflowing;

(4). adjustment system is installed

1. adjusting knob is installed, and will be equipped with the screw of adjusting knob 25 alignment and regulates the hole of shelves 23, is screwed in adjustment shelves 23.

2. the crab claw are installed, and instill appropriate white glue, be screwed on total shelves by the crab claw 24 in crab claw hole;

3. lift shelves to install, a grade the right for hinge groove is lifted be adhesive on total shelves the three of thickness 1.5 �� length 35, the left side with to lift grade the right of hinge groove substantially equal, and smooth (install in order to strengthen lifting the buffering between shelves and total shelves, be also prevented from lifting the unnecessary damage caused in shelves adjustment process with the collision of total shelves) with finger; First it is through at hinge jaw respectively lifting grade hinge, lift that grade hinge is shaped as that the left side is opened 1, open 3 of the right, then by making the hole lifting shelves and the fixed value that two centre distances are L in the hole of leftmost support on total shelves, this fixed value can be determined according to practical situation, tightly lift shelves with right hand pendulum, make to lift grade hinge and lift edge in grade hinge groove on total shelves, screw of then screwing on, requirement is lifted after a grade hinge installs, lift shelves and should substantially without play, and rotate sensitive, without hindrance sense;

4. push rod braking shelves are installed, 3 push rods being braked gear and is screwed in push rod gear and substantially parallel, every push rod braking gear has 3 push rod braking gear screws, and when being screwed into, 3 push rod braking gear screws are alternately screwed into simultaneously, require that 3 push rod braking gears should be substantially parallel, and firm combination;

5. regulate shelves to install, rotating total shelves makes clutch front face operator, first set screw 22 is screwed in the hole regulating shelves 23, the length of all reserved 3-4mm, then regulate shelves set screw perform in the groove including the crab claw 24 in, the adjustment that clutch rises to push rod head and turning device cam 3 is made to enclose when contacting, the center alignment of push rod 15 head regulates the center of forestick circle, after requiring push rod shelves to install, wood cycle basis does not originally tilt, rise with finger push clutch, the turning device cam 3 and then anglec of rotation, when turning device cam 3 rotates 3 ��-4 ��, regulate shelves 23 and should play position-limiting action, when clutch does not promote, regulating circle with push rod 15 head distance is 4mm,

Two. install to turn and hit system

(1). install to turn and hit system, total shelves are included in mould bases, adjusts total shelves face, make total shelves turning device pedestal vertical oriented manipulation person, fixing mould bases, from high pitch end the 88th, turning device is installed; The spacing stainless steel silk of pedestal by �� 1.8 is put in total shelves groove, and left hand takes turning device, and the right hand takes electric screw driver, and turning device is fixed in total shelves, turning device locating slot alignment pedestal positive stop strip, fixes 88 turning device successively; Wherein, initial workpiece turning device is twisted after well, whether detects turning device cam 3 with total shelves notch angle in 90 �� with ruler, if any sideslip, then makes first successive step;

(2). correct turning device sideslip at the volley, level lifts 5-8 turning device, make it rotate, the size estimated between each turning device cam 3 in rotation and direction change, then according to the size of its change and direction, in opposite direction (namely to left avertence, pad the right) upper it is encased inside turning device pedestal 8 and always between shelves with paper slip, paper slip is encased inside the degree of depth to be encountered or is about to encounter positive stop strip, must not only pad above a bit, also must not exceed positive stop strip, paper slip broadband is about 2.5mm, paper slip position is on turning device pedestal 8 foot, if sideslip is corrected, hoe is sideslip still, then can paper slip pad between turning device pedestal 8 lower end and notch, when making turning device reach reciprocating about 45 �� of pin along Shen, detect by an unaided eye, it is substantially free of the sign to both sides sideslip, turning device is moved without deviation phenomenon, between turning device, gap is uniformly coordinated, firm combination, pollution-free and defect, part is neat, correction sideslip terminates, and whole screws are tightened after once again, installs push rod braking shelves,

Three. only system for electrical teaching is installed

(1). unclamp the fixing bayonet socket of installation mould bases, total shelves are moved in the direction of the clock 90 �� and locks;

(2). put into total shelves sound stopping device by �� 1.6 pedestal rustless steel positive stop strip and install in groove, (high pitch end count concrete operations can be drafted according to practical situation from high pitch end 72, do not fix) start, screw is inserted in sound stopping device pedestal 12, being directed at total shelves eye, pedestal rustless steel positive stop strip is put in pedestal detent, after pressing, tighten screw, install in order successively;

(3). unclamp bundle tool bayonet socket, total shelves are moved in the direction of the clock 90 ��, adjusts the clearance distance stopping tuning rod about 10 two splaying and adjacent two, to uniformly coordinating;

(4). being fixed on bottom district sound stopping device the first key with a Masson Pine ruler one end, the other end is fixed on last key of sound stopping device;

(5). being inserted in by sound head grain only in sound iron wire, sound head grain contacts with Masson Pine ruler, and in the same direction, parallel;

(6). adjust iron wire, coordinate bolster iron wire, climb with the gap between silk, sound head grain; Make only tuning rod about 10 two end uniform with adjacent segment; Band silk is climbed in adjustment, to coordinate the height of push rod 15, and the depth of parallelism of gangbar 18; Shelves are lifted in rotation, adjust sound stopping device fine adjustment screw, make the concordance lifting shelves and sound stopping device action synchronization and all sound stopping device actions;

Four. linked system is installed

(1). linked system is installed, unclamps the fixing bayonet socket of installation mould bases, rotate total shelves, make the linkage device shaft bracket notch oriented manipulation person of total shelves, fixing mould bases, start clutch is installed from high pitch end the 88th, put in total shelves groove by the �� 1.8 spacing copper bar of pedestal, left hand takes clutch, the right hand takes electric screw driver, clutch is fixed in total shelves, the clutch locating slot alignment spacing copper bar of pedestal, during screw tightening, Zong Dangyan center and pedestal eye center should be unison, the turning device cam 3 of push rod 15 correspondence should be correct, then driving screws, too not tight, motionless as well, linkage device shaft bracket 20 screw is not also tightened, but slightly packing ring impression on pedestal, whether measure between gangbar 18 and notch in 90 �� with angle square again, if any deviation, make just successive step, remaining clutch is fixed on total shelves as stated above, during the turn of the screw, screwdriver, screw, screw hole as far as possible 3 be in line, to ensure clutch track concordance at the volley,

Five. inspection, warehouse-in

Hammered string instrument after step 4 is made, tests, after qualified, and packaging warehouse-in.

Preferably, described step one. (3) .4 will climb band hook put into die cavity before, pouring end soak some lubricants.

The above embodiment is only the preferred embodiments of the present invention, and and the feasible enforcement of non-invention exhaustive. For persons skilled in the art, any apparent change under the premise without departing substantially from the principle of the invention and spirit, it is done, all should be contemplated as falling with within the claims of the present invention.

Claims (2)

1. a upright piano action assemble method, it is characterised in that: specifically include following steps:

One. the subsystem that three are little being turned the system of hitting, only system for electrical teaching, linked system individually assembles, and, adjustment system and total shelves is assembled meanwhile;

(1). assemble to turn and hit system

1. 45 turning device cams are placed on mould bases, lift concora crush tight by glue chamois leather; It is uniformly coated with one layer of white glue along 1/2 under turning device cam B facial plane, with A along for benchmark, by smooth on it at the bottom of smooth turning device, rub with hands and be convinced, along being uniformly coated with one layer of white glue in turning device cam C plane, after felt at the bottom of turning device is affixed on location of C, rubs with hands and be convinced, distinguish at the bottom of smooth turning device with flatiron and end felt, back and forth several times; In turning device cam A plane from lower along being uniformly coated with one layer of white glue, take a turning device chamois leather, with A plane for benchmark, by the whole reality of flat blade, it is ensured that chamois leather and A face close joint, wait to do; The turning device chamois leather other end about 1/3 face is uniformly coated with glue, after white glue is also coated in D face, pressurizes 20 minutes; It is uniformly coated with one layer of glue at 1/3 place at the later half place of gluing surface, with turning device chamois leather face, A place for benchmark, pastes a turning device felt, rub with hands after putting down, pressurize 20 minutes;

2. cut chamois leather, first cut unnecessary felt, the strip turning device posting felt is posted facing up of chamois leather, be placed on and cut travelling workpiece on mould and cut, make felt, turning device chamois leather consistent with turning device cam width, without crooked;

3. band climbed by glue, will climb belt leather and face down, and be respectively positioned on the mould in positioning needle, takes braking wooden handle, and the end face of impression short end is viscous takes a small amount of glue. Stretch and climb band, the braking wooden handle of glue will be speckled with to climb band vertical, with brake wooden handle termination diameter for positioning edge, bond, wait a moment and climb band and take out from positioning needle and put into boxes;

4. the combination of turning device Cam braking wood, adjusts upper and lower mould distance according to dimensional requirement, and locks stop screw; Glue being climbed the braking wooden handle with one end and immerses glue degree of depth 3-4mm, white glue is enclosed in uniform dip-coating one, fills in braking wood hole and rotates 1-2 circle, makes glue uniform adhesion, climbs band and is positioned at the centre of braking wood lower end, without substantially crooked; Will the other end of braking wooden handle, immerse 3-5mm in glue deep, make glue uniform adhesion on it, fill in turning device Cam braking wooden handle hole, rotating 1-2 circle makes periphery glue uniform, then is put in fixture to make braking wooden handle press-in turning device cam, take out and check after unclamping; Discharging in order to 15, place in another fine setting pressing mold and compress, make turning device cam uniform with two plane clearances on braking wood both sides, braking wooden handle is 90 �� with turning device cam hoe, and adjacent two workpiece maximum erroies are less than 0.3s;

5. wear spring wire, spring wire one end thin copper wire is twisted into taper, so that through bobbin hole, it is positioned in the spring groove of turning device cam by hooking spring, then spring wire is each passed through turning device cam line axis hole, spring eye, turning device cam line axis hole, and strain axis till full 90 of string, thus forming the hammer butt of a strip, make spring without obvious deformation, stirring spring, spring wire is without substantially loosening phenomenon, and rear cutting knife cuts along the gap of hammer butt, cutting rear spring hole is substantially flush with turning device cam, without exposing residual line;

6. around hooking spring line, first straight for turning device pedestal is arranged on particular manufacturing craft, restriction because of die length, can fixed qty it be once 40, then clamp, the pin of diameter 2mm is immersed in white glue water, then the glue on dial is coated onto in the hook spring wire casing of turning device pedestal, from mould left end, the right hand is with S shape coiling, hook spring line is fixed on above hook spring groove, until till full 40, successively the line linked together is drawn disconnected with blade, entered in groove hook spring cableties before in groove, the glue solidifies, unclamp fixture, in production storing box, require that groove is outer to overflow without cull, bonding is firmly, hook spring line not expose,

7. turning device pedestal combination, before operation, reply initial workpiece is tested, and namely axonometer should drop on turning device cam hole and center, pedestal hole when declining respectively, red needle descending depth is adjusted simultaneously; During operation, first the basal plane of turning device cam and turning device pedestal is close to work top and backer, workpiece is pushed down with finger, then axonometer is included in nib, axonometer is pressed into workpiece, after many for front end remaining years reached pin cut off, reach resistance between 0.6 �� 0.2N with ergometer inspection is raw, take out workpiece and discharge in order;

8. the combination of turning device cam hammerhead, adjusts upper and lower mould distance according to dimensional requirement, and locks stop screw; Hammerhead handle one end is immersed glue degree of depth 3-4mm, and white glue is enclosed in uniform dip-coating one, fills in and rotates 1-2 circle in the hammerhead delthyrium on hammerhead, makes glue uniform adhesion; By the other end of hammerhead handle, immersing degree of depth 3-5mm in glue, white glue is enclosed in uniform dip-coating one, makes glue uniform adhesion on it, fills in turning device cam hammerhead delthyrium, rotate 1-2 circle and make periphery glue uniform, then be put in fixture and make hammerhead handle press-in turning device cam;

(2). assemble only system for electrical teaching

1. spring wire worn by pedestal, spring wire one end thin copper wire is twisted into taper, so that through bobbin hole, only sound spring is positioned in the spring groove of sound stopping device pedestal, then spring wire is each passed through sound stopping device pedestal bobbin hole, spring eye, sound stopping device pedestal bobbin hole, and strain axis till full 90 of string, thus forming the hammer butt of a strip, make spring without obvious deformation, stirring spring, spring wire is without substantially loosening phenomenon, and rear cutting knife cuts along hammer butt gap, cutting rear spring hole is substantially flush with turning device cam, without exposing residual line;

2. punching only sound screw mandrel, take three only sound screw mandrel put into mould, three are stopped tuning rod and put into counterdie, adjust the concentricity of upper and lower mould, make only sound screw mandrel alignment only sound screw hole, in press-in only tuning rod, it it is 90 �� with only tuning rod upper surface, and only sound screw mandrel is without obvious deformation, only sound screw mandrel is inconsistent without substantially turnover, and only tuning rod damages phenomenon without avulsion etc.;

3. sound stopping device pedestal combination, before operation, reply initial workpiece is tested, and should drop on only tuning rod hole and center, pedestal hole respectively, red needle descending depth is adjusted simultaneously when namely axonometer declines; During operation, first the basal plane of only tuning rod and sound stopping device pedestal is close to work top and backer, pushes down workpiece with finger, then axonometer is included in nib, axonometer is pressed into workpiece, after many for front end remaining years reached pin cut off, take out workpiece and discharge in order;

(3). assemble linked system

1. glue general assembly, at the bottom of gluing gangbar, by 90 gangbar bottom surfaces upwards, it is placed on mould bases, by the adhesive tape trisection of 880 �� 28 �� 4, then rapidly and evenly apply glue, with collar extension for baseline, that is convinced is placed on hammer butt bottom surface, and rub with hands and to be convinced, put pressing plate, pressurize more than 1h with the pressure of 60 �� 10N/cm, after release, cleaning exposes glue neatly stacks; Bar unnecessary for two ends is cut, repaiies and expose glue, utilize knife rest that the end is cut, sequentially put in dish; Midway is sampling observation constantly, and carries out labelling and complete to do over again; With 90 bolsters for a combination, profit is gluing bolster felting in a like fashion;

2. rotation bolster bar, is placed on bolster felting forward on mould bases towards upper, rod aperture, and bolster bar straight burr end inserts in the power head bore rotated simultaneously, clamping; Bolster rod aperture being directed at bolster bar, slightly firmly pushes away forward, bolster bar is shot in bolster automatically, discharges in order after taking-up;

3. rush spoon nail, spoon nail is put into upper mould, gangbar puts into counterdie, adjusts the concentricity of upper and lower mould, makes spoon nail alignment spoon nail, little cylinder-pressing spoon is followed closely, spoon nail is pressed in gangbar by big cylinder, and is 90 �� with direction, gangbar upper surface, and spoon is followed closely without defects such as obvious deformation, spoon nail is inconsistent without substantially turnover, and gangbar damages phenomenon without avulsion etc.;

4. band hook is climbed in punching, band hook will be climbed and put into die cavity, and push down with finger, depress switch, make to climb band hook and pour in gangbar, measure after taking-up, climb band and hook without substantially deformation, climb the triangle upper end with hooking and substantially become a horizontal line, without tilting, gangbar is without, after the phenomenon such as avulsion, damage, continuing to produce, and workpiece arranges in order;

5. rush bolster bar, gangbar is put in counterdie, adjusts the concentricity of upper and lower mould, bolster bar is pressed into end and soaks a little lubricant, it is put in top mold frame, and push down with hands, pour gangbar, after the press-in of bolster bar, it is exposed at upper part to include the length dimension of bolster and control at 96 �� 0.2mm, checking size after taking-up, continue to produce after qualified, workpiece arranges in order;

6. linkage device shaft bracket combination, before operation, reply initial workpiece is tested, and should drop on linkage rod aperture and center, pedestal hole respectively, red needle descending depth is adjusted simultaneously when namely axonometer declines; During operation, first the basal plane of gangbar and pedestal should be close to work top and backer, push down workpiece with finger, then axonometer is included in nib, axonometer is pressed into workpiece, after many for front end remaining years reached pin cut off, take out workpiece and discharge in order; Requiring that pedestal rotates sensitive, gravity energy declines or slightly shake can decline as well, not loose expansion, and gangbar axonometer hole and pedestal are in coaxial state, must not have pollution and defect;

7. ejector rod shaft bracket combination, before operation, reply initial workpiece is tested, and namely axonometer should drop on jogger hole and center, pedestal hole when declining respectively, red needle descending depth is adjusted simultaneously; During operation, first the basal plane of push rod and ejector rod shaft bracket should be close to work top and backer, push down workpiece with finger, then axonometer is included in nib, axonometer is pressed into workpiece, after many for front end remaining years reached pin cut off, take out workpiece and discharge in order;

8. glue push rod, stamping machine verification before operation, regulate the Aligning degree of press depth and push rod and clutch push rod groove, it is desirable to pedestal and the symmetrical degree of clutch push rod groove after assembling control between 0.15, take out 30 push rods, appropriate glue is coated at pedestal gluing position and gangbar groove gluing position stand-by, take a push rod and put into mould, make its smooth backer, gangbar puts into counterdie, after making its backer with work top be close to, sink switch, carry out viscous stranding with the hands, take out after unclamping, the centrad of detection push rod and perpendicularity, and put in order, require glued firm, four sides has a little glue to overflow, but not sagging, ejector rod shaft bracket and gangbar groove combination gapless, ejector rod shaft bracket and gangbar are 90 �� of angles, ejector rod shaft bracket and the symmetrical degree of clutch push rod groove control between 0.15, must not there is pollution, defect, life reaches movable sensitive, do not loosen,

9. glue push rod spring, pinches the small end of push rod spring with finger, immerses in white glue by the big end of spring, it is advisable with the closely sealed circle of submergence, then includes in gangbar spring eye, slightly rotate, so as to sink to the bottom, then press push rod, put successively, requiring that push rod spring is without crooked, basic vertical with gangbar all directions, spring heights is about 22.8 �� 0.5mm, must not too much bond, bonding firmly, must not have pollution, sagging, it is allowed to have glue from overflowing;

(4). adjustment system is installed

1. adjusting knob is installed, and will be equipped with the screw of adjusting knob alignment and regulates the hole of shelves, is screwed in adjustment shelves.

2. the crab claw are installed, and instill appropriate white glue, be screwed in by the crab claw on total shelves in crab claw hole;

3. lift shelves to install, lift a grade the right for hinge groove be adhesive on total shelves the three of thickness 1.5 �� length 35, the left side with to lift grade the right of hinge groove substantially equal, and smooth with finger; First it is through at hinge jaw respectively lifting grade hinge, lift that grade hinge is shaped as that the left side is opened 1, open 3 of the right, then by making the hole lifting shelves and the fixed value that two centre distances are L in the hole of leftmost support on total shelves, this fixed value can be determined according to practical situation, tightly lift shelves with right hand pendulum, make to lift grade hinge and lift edge in grade hinge groove on total shelves, screw of then screwing on, requirement is lifted after a grade hinge installs, lift shelves and should substantially without play, and rotate sensitive, without hindrance sense;

4. push rod braking shelves are installed, 3 push rods being braked gear and is screwed in push rod gear and substantially parallel, every push rod braking gear has 3 push rod braking gear screws, and when being screwed into, 3 push rod braking gear screws are alternately screwed into simultaneously, require that 3 push rod braking gears should be substantially parallel, and firm combination;

5. regulate shelves to install, rotating total shelves makes clutch front face operator, first set screw is screwed in the hole regulating shelves, the length of all reserved 3-4mm, then in the groove including the crab claw in that performs regulating shelves set screw, the adjustment that clutch rises to push rod head and turning device cam is made to enclose when contacting, the center alignment of push rod head regulates the center of forestick circle, after requiring push rod shelves to install, wood cycle basis does not originally tilt, rise with finger push clutch, turning device cam follows the anglec of rotation, when turning device cam rotates 3 ��-4 ��, regulate shelves and should play position-limiting action, when clutch does not promote, regulating circle with push rod head distance is 4mm,

Two. install to turn and hit system

(1). install to turn and hit system, total shelves are included in mould bases, adjusts total shelves face, make total shelves turning device pedestal vertical oriented manipulation person, fixing mould bases, from high pitch end the 88th, turning device is installed; The spacing stainless steel silk of pedestal by �� 1.8 is put in total shelves groove, and left hand takes turning device, and the right hand takes electric screw driver, and turning device is fixed in total shelves, turning device locating slot alignment pedestal positive stop strip, fixes 88 turning device successively; Wherein, initial workpiece turning device is twisted after well, whether detects turning device cam with total shelves notch angle in 90 �� with ruler, if any sideslip, then makes first successive step;

(2). correct turning device sideslip at the volley, level lifts 5-8 turning device, make it rotate, the size estimated between each turning device cam in rotation and direction change, then according to the size of its change and direction, it is encased inside between turning device pedestal and total shelves with paper slip in the reverse direction, paper slip is encased inside the degree of depth to be encountered or is about to encounter positive stop strip, must not only pad above a bit, also must not exceed positive stop strip, paper slip broadband is about 2.5mm, paper slip position is on turning device pedestal foot, if sideslip is corrected, hoe is sideslip still, then can paper slip pad between turning device pedestal lower end and notch, when making turning device reach reciprocating about 45 �� of pin along Shen, detect by an unaided eye, it is substantially free of the sign to both sides sideslip, turning device is moved without deviation phenomenon, between turning device, gap is uniformly coordinated, firm combination, pollution-free and defect, part is neat, correction sideslip terminates, and whole screws are tightened after once again, installs push rod braking shelves,

Three. only system for electrical teaching is installed

(1). unclamp the fixing bayonet socket of installation mould bases, total shelves are moved in the direction of the clock 90 �� and locks;

(2). put into total shelves sound stopping device by pedestal rustless steel positive stop strip and install in groove, from high pitch end, screw is inserted in sound stopping device pedestal, being directed at total shelves eye, pedestal rustless steel positive stop strip is put in pedestal detent, after pressing, tighten screw, install in order successively;

(3). unclamp bundle tool bayonet socket, total shelves are moved in the direction of the clock 90 ��, adjusts the clearance distance stopping upper and lower two splayings of tuning rod and adjacent two, to uniformly coordinating;

(4). being fixed on bottom district sound stopping device the first key with a Masson Pine ruler one end, the other end is fixed on last key of sound stopping device;

(5). being inserted in by sound head grain only in sound iron wire, sound head grain contacts with Masson Pine ruler, and in the same direction, parallel;

(6). adjust iron wire, coordinate bolster iron wire, climb with the gap between silk, sound head grain; Make only upper and lower two ends of tuning rod uniform with adjacent segment; Band silk is climbed in adjustment, to coordinate the height of push rod, and the depth of parallelism of gangbar; Shelves are lifted in rotation, adjust sound stopping device fine adjustment screw, make the concordance lifting shelves and sound stopping device action synchronization and all sound stopping device actions;

Four. linked system is installed

(1). linked system is installed, unclamps the fixing bayonet socket of installation mould bases, rotate total shelves, make the linkage device shaft bracket notch oriented manipulation person of total shelves, fixing mould bases, start clutch is installed from high pitch end the 88th, put in total shelves groove by the �� 1.8 spacing copper bar of pedestal, left hand takes clutch, the right hand takes electric screw driver, clutch is fixed in total shelves, the clutch locating slot alignment spacing copper bar of pedestal, during screw tightening, Zong Dangyan center and pedestal eye center should be unison, the turning device cam that push rod is corresponding should be correct, then driving screws, too not tight, motionless as well, linkage device shaft bracket screw is not also tightened, but slightly packing ring impression on pedestal, whether measure between gangbar and notch in 90 �� with angle square again, if any deviation, make just successive step, remaining clutch is fixed on total shelves as stated above,

Five. inspection, warehouse-in

Hammered string instrument after step 4 is made, tests, after qualified, and packaging warehouse-in.

2. a kind of upright piano action assemble method according to claim 1, it is characterised in that: described step one. (3) .4 will climb before band hooks and put into die cavity, pour end some lubricants of leaching.