CN102490212B - Automatic drilling machine for piano hammer heads, multi-angle automatic drilling machine for piano hammer heads and automatic drilling system for piano hammer heads - Google Patents
Automatic drilling machine for piano hammer heads, multi-angle automatic drilling machine for piano hammer heads and automatic drilling system for piano hammer heads Download PDFInfo
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- CN102490212B CN102490212B CN201110430965.0A CN201110430965A CN102490212B CN 102490212 B CN102490212 B CN 102490212B CN 201110430965 A CN201110430965 A CN 201110430965A CN 102490212 B CN102490212 B CN 102490212B
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Abstract
The invention relates to an automatic drilling machine for piano hammer heads. The automatic drilling machine comprises a drilling mechanism for drilling holes on workpieces by the use of drill bits and also comprises a feeding mechanism for making the workpieces move in the linear feeding direction, a charging mechanism for successively sending the workpieces into the feeding mechanism before drilling, a discharging mechanism for successively sending the drilled workpieces out from the feeding mechanism, a clamping mechanism for clamping the workpieces when drilling and a frame. Along the feeding direction, the feeding mechanism, the charging mechanism, the discharging mechanism, the clamping mechanism and the drilling mechanism are successively arranged on the frame. The drill bits are positioned above the clamping mechanism. The charging direction of the charging mechanism and the discharging direction of the discharging mechanism are perpendicular to the feeding direction. The invention also relates to a multi-angle automatic drilling machine for piano hammer heads and a system formed by the two machines. The machines and the system provided by the invention have simple structures, can be used to effectively raise processing quality and processing efficiency, can be used for batch automation production, and are suitable for piano hammer head processing.
Description
Technical field
The present invention relates to a kind of drilling technique of piano hammerhead, specifically, relate to a kind of piano hammerhead automatic drilling machine, multi-angle piano hammerhead automatic drilling machine and piano hammerhead automatic drilling system.
Background technology
Piano hammerhead is the part that knocks string pronunciation.The quality of hammerhead directly has influence on the quality of piano acoustic quality.And angle precision between hammerhead reel and hammerhead handle has directly determined piano struck string point precision, once hammerhead can not impact the desirable string point that hits, the tonequality of piano will be greatly affected.There is important contacting in the hole of boring on the angle precision between hammerhead reel and hammerhead handle and hammerhead reel, so the processing of hammerhead boring is the important procedure that piano striking machine is produced.
Every piano has 88 hammerheads, is divided into bass hammerhead, middle pitch hammerhead, high pitch hammerhead.For high pitch hammerhead, hole is straight hole; For bass hammerhead, a side of the angle deflection hammerhead reel in hole, is fixed angle; For middle pitch hammerhead, the opposite side of the angle deflection hammerhead reel in hole, size is stepped change, corresponding multiple angle numerical value.
Existing hammerhead boring method is: workpiece is placed in the mould pre-establishing tightly with hand, makes workpiece and drill bit become different angles, manual adjustments drill bit is to lower feeding, thereby processes the hole of different angles on workpiece.Adopt in this way, there is following shortcoming: 1. need a mould of the corresponding preparation of every kind of angle; 2. workpiece pressing is by staff, and labour intensity is large; Place work piece, workpiece pressing, take out workpiece, more mold exchange and drill bit feeding entirely by manual operations, inefficiency; 4. workpiece size is less, and workpiece pressing adds man-hour, and drill bit easily hurts hand, needs workman to have very strong operative skill, the production of guarantee safety and efficiently; 5. percent defective is high.
Summary of the invention
For the technical problem existing in prior art, first object of the present invention is: provide a kind of simple in structure, drilling quality is high and piano hammerhead automatic drilling machine that can batch ticket angle automatic drilling.
Second object of the present invention is: provide a kind of simple in structure, drilling quality is high and the multi-angle piano hammerhead automatic drilling machine of multi-angle automatic drilling in batches.
The 3rd object of the present invention is: the piano hammerhead automatic drilling system that provides a kind of and effectively increase work efficiency, can add all hammerheads of carefully and neatly done platform piano.
In order to reach first object, the present invention adopts following technical scheme:
A kind of piano hammerhead automatic drilling machine, comprise: the borehole drill construction of holing on workpiece with drill bit, it also comprises: make feed mechanism that workpiece moves up in linear feeding side, by the workpiece before boring send into successively the feeding mechanism of feed mechanism, when the workpiece after boring is sent to discharging mechanism, the boring of feed mechanism successively by the clamp mechanism of Workpiece clamping and frame; Along feed direction, feed mechanism, feeding mechanism, discharging mechanism, clamp mechanism and borehole drill construction are successively set in frame; Drill bit is positioned at the top of clamp mechanism; The discharging direction of the feedstock direction of feeding mechanism and discharging mechanism is vertical with feed direction.
Adopt after this structure, workpiece enters feed mechanism through feeding mechanism, and feed mechanism is delivered to workpiece the position of clamp mechanism, and clamp mechanism is by Workpiece clamping, for borehole drill construction processing; After machining, clamp mechanism is unclamped, and workpiece is delivered to discharging mechanism by feed mechanism, and under the effect of discharging mechanism, workpiece leaves feed mechanism; Feed mechanism is got back to initial position, carries out Drilling operation next time.Only workpiece need be put into feeding mechanism, get final product automatic drilling, without possessing specialty or special operational technical ability, labour intensity is low, and operating efficiency is high, and crudy is high, and percent defective is low, realizes automated production.
Feeding mechanism comprises: feed well, feed well seat, charging pushing block, hold-down mechanism and Zhi Liao mechanism; Feed well is installed in frame by feed well seat, and is positioned at sustained height with feed direction; The thickness direction of workpiece, the length direction of feed well are consistent with feedstock direction; Multiple workpiece are stacked and placed in feed well along thickness direction; Charging pushing block is the Way out workpiece pressing to feed well by hold-down mechanism; Zhi Liao mechanism comprises: only expect cylinder, and by the upper holder block of only expecting air cylinder driven; While only expecting that cylinder enters or moves back, upper holder block compresses or leaves the workpiece of the outlet that is positioned at feed well.
Adopt after this structure, workpiece is stacked in feed well on thickness direction, and under the effect of hold-down mechanism, workpiece is pushed to the outlet of feed well, and then enters feed mechanism; Under the effect of Zhi Liao mechanism, upper holder block is being pressed the workpiece upper end of the outlet that is positioned at feed well, ensures once to only have a workpiece to enter feed mechanism.Simple in structure, charging is reliable.Because workpiece side is to being erected in feed well, the bottom of workpiece is not plane, for allow workpiece put steady and allow workpiece treat bore surfaces upward, in feed well, be provided with ladder position, when one end of workpiece is positioned on ladder position, the bore surfaces for the treatment of of workpiece adapts to upward position.
Hold-down mechanism comprises: bracing wire, fixed pulley, movable pulley and weight; One end of bracing wire taps into after material pushing block, extends one section, then walks around fixed pulley to downward-extension, then walk around movable pulley and upwards extend to the Way out of feed well, and the other end is relative with frame fixing; Weight is fixed on movable pulley.
Adopt after this structure, by the weight of weight, bracing wire strained, so by charging pushing block the Way out tractive to feed well, make charging pushing block release workpiece.Simple in structure, charging is reliable.
Feed mechanism comprises: have two-pass feeding cylinder, feeding cylinder seat, guide rail, guide runner, top and be provided with the material feeding seat for the groove position of place work piece; Feeding cylinder is fixed in frame by feeding cylinder seat; Floating junction and the material feeding seat of feeding cylinder are fixed; Material feeding seat moves back and forth on guide rail by guide runner; In the time that feeding cylinder moves back, groove position is just to feeding mechanism; In the time that feeding cylinder is positioned at the first travel position, groove position is just to clamp mechanism; In the time that feeding cylinder is positioned at the second travel position, groove position is just to discharging mechanism.
Adopt after this structure, feeding cylinder is along line slideway conveying workpieces back and forth.Workpiece is sent the first travel position at initial position, and clamped mechanism clamps and carries out Drilling operation; After machining, feeding cylinder is retracted, and workpiece is delivered to the second travel position discharging; After discharging, material feeding seat is got back to initial position, treats that feeding mechanism sends into new workpiece to the groove position of material feeding seat, carries out the Drilling operation of next round.Simple in structure, feeding is reliable, accurate positioning, and can accurately control the stop of feeding cylinder, flexible time.Groove position also comprises a ladder position, when one end of workpiece is positioned on ladder position, workpiece treat the position that bore surfaces adapts to upward.
Feed mechanism also comprises: pressure head, straight pin, cylindrical compression spring and push rod; Pressure head is fixed on material feeding seat by straight pin, comprises horizontal component and vertical portion, and cylindrical compression spring is between vertical portion and material feeding seat; Push rod is positioned on feeding cylinder seat; In the time that feeding cylinder moves back, push rod withstands vertical component, cylindrical compression spring compression, and pressure head rotates around straight pin, and workpiece is left in the end of horizontal component; In the time that feeding cylinder enters, vertical component leaves push rod, and cylindrical compression spring resets, and pressure head reverses around straight pin, the end workpiece pressing of horizontal component.
Adopt after this structure, the vertical component of pressure head is fixed on the side of material feeding seat towards feeding cylinder seat by straight pin, and horizontal component is positioned at the top of material feeding seat, and pressure head rotates on material feeding seat around straight pin.This structure can realize pre-determined bit to workpiece in groove position, and can realize Automatic-clamping.Simple in structure, easy to operate, reliable clamping.
Discharging mechanism comprises: discharging cylinder, discharging cylinder block, discharging push pedal, blow tank and discharging rod; Discharging cylinder is fixed in frame by discharging cylinder block; Discharging rod is fixed on the side of discharging push pedal away from discharging cylinder; Discharging cylinder moves back and forth along discharging direction in a side drive discharging push pedal of feed direction; Blow tank is positioned at the opposite side of feed direction and just to discharging push pedal, height and the feed direction of blow tank are corresponding; When discharging cylinder enters, workpiece is moved to blow tank by discharging rod.
Adopt after this structure, control discharging Telescopic-cylinder, can complete discharging action.Workpiece is arranged in blow tank, often goes out a defective material, and workpiece moves the thickness position of a workpiece outward, when the workpiece in blow tank runs up to some, then takes out by the gross, and the time that interval is grown just needs manual operation once.Simple in structure, save manpower, easy to operate.
Clamp mechanism comprises lateral pressing structure of shoe and upper press mechanism; Lateral pressing structure of shoe comprises: Compress Spring, side guide, side pressure cylinder and side pressure cylinder block; Side pressure cylinder is fixed in frame by side pressure cylinder block; When side pressure cylinder enters, promote side guide from side direction clamping work pieces by Compress Spring; When side pressure cylinder moves back, side guide leaves workpiece; Upper press mechanism comprises: upper air cylinder, upper air cylinder seat, rotation pressure arm, cramp bar and seaming chuck; Upper air cylinder is fixed in frame by upper air cylinder seat; The middle part of rotating pressure arm is connected with cramp bar rotary type, and cramp bar is fixed in frame; The below, one end of rotating pressure arm is provided with seaming chuck, and the other end is connected with the floating junction rotary type of upper air cylinder; When upper air cylinder enters, rotate pressure arm and rotate on cramp bar, seaming chuck is downward, the top of workpiece pressing.
Adopting after this structure, withstood by the parts of feed mechanism when workpiece one side, for example, is the step of material feeding seat projection, and the opposite side of workpiece is located by lateral pressing structure of shoe, and locate by upper press mechanism top, can ensure the reliable location of workpiece.When workpiece one side does not have parts that it is withstood, can lateral pressing structure of shoe be set at lateral register in the both sides of workpiece, locate by upper press mechanism top.Behind location, Workpiece clamping is reliable, in boring procedure, can not be shifted, and ensures that bore position is accurate, and drilling quality is high.Simple in structure, reliable clamping.
Borehole drill construction comprises pneumatic brill and borehole drill construction support; The pneumatic borehole drill construction support that drilled through is arranged in frame; When pneumatic creeping into, drill bit is just to workpiece.
Adopt after pneumatic brill, can not only realize the rotary drilling action of drill bit, can also realize the advance and retreat action of drill bit simultaneously, simple in structure, easy to operate.Pneumatic brill is commercially available parts on the market.Change the pneumatic setting angle being drilled on borehole drill construction support, can on workpiece, bore the hole of different angles.But after installing, pneumatic brill can only form fixing angle, be suitable for fixed angle boring in enormous quantities.
In order to reach second object, the present invention adopts following technical scheme:
A kind of multi-angle piano hammerhead automatic drilling machine, is characterized in that: its structure is with the piano hammerhead automatic drilling machine described in any one in claim 1 to 7; Borehole drill construction comprises: cushion block, horizontal slip mechanism, bearing block, turntable slide mechanism and pneumatic brill; Horizontal slip mechanism comprises: servomotor, ball screw and movable panel, and servomotor drives ball screw to rotate and then drives movable panel along feed direction two side shiftings; The rotating shaft of turntable slide mechanism is arranged in bearing block, and turntable slide mechanism rotates with respect to bearing block; The pneumatic turntable slide mechanism that drilled through is installed on bearing block, and bearing block is installed on cushion block by horizontal slip mechanism, and cushion block is installed in frame.
Adopt after this structure, horizontal slip mechanism can make both sides (be feedstock direction) the back and forth translation of pneumatic brill along feed direction; Turntable slide mechanism can make pneumatic brill rotate around bearing block.Only need be before equipment operation, parameter preset, regulates lateral position and the bore angle of pneumatic brill, can realize the boring of multiple angles.An equipment can be processed the workpiece of different angles, simple in structure, easy to operate.
In order to reach the 3rd object, the present invention adopts following technical scheme:
A kind of piano hammerhead automatic drilling system, is characterized in that: comprising: for processing the first piano hammerhead automatic drilling machine of bass hammerhead, for processing the second piano hammerhead automatic drilling machine of high pitch hammerhead, for processing the multi-angle piano hammerhead automatic drilling machine of middle pitch hammerhead; The structure of the first piano hammerhead automatic drilling machine and the second piano hammerhead automatic drilling machine is with piano hammerhead automatic drilling machine; The structure of multi-angle piano hammerhead automatic drilling machine is with aforementioned multi-angle piano hammerhead automatic drilling machine; The pneumatic brill of the second piano hammerhead automatic drilling machine is arranged along vertical direction, pneumatic brill and the vertical direction of the first piano hammerhead automatic drilling machine have amesiality fixed angle, and the pneumatic brill of multi-angle piano hammerhead automatic drilling machine and vertical direction have the included-angle-changeable of deflection opposite side.
In a piano, due to bass hammerhead, the shared ratio of high pitch hammerhead quantity is large, and has respectively own fixing angle, and middle pitch hammerhead angular dimension is stepped change.Therefore be equipped with one and be exclusively used in the first piano hammerhead automatic drilling machine of processing bass hammerhead, a second piano hammerhead automatic drilling machine that is exclusively used in processing high pitch hammerhead, complete the processing in high and low sound hammerhead hole.The multi-angle piano hammerhead automatic drilling machine that coordinates again a processing middle pitch hammerhead, completes the processing of all the other middle pitch hammerheads.This combination, than high by 88 hammerhead working (machining) efficiencies of multi-angle piano hammerhead automatic drilling machine processing separately, has been omitted and has been adjusted the time of bass, high pitch hammerhead machining angle, and can process by three equipment simultaneously.
Generally speaking, tool of the present invention has the following advantages: simple in structure, effectively improve crudy and working (machining) efficiency, and can batch automatic production.
Brief description of the drawings
Fig. 1 is the front view of multi-angle piano hammerhead automatic drilling machine.
Fig. 2 is the left view (not shown borehole drill construction part assembly) of Fig. 1.
Fig. 3 is the top view (not shown borehole drill construction part assembly) of Fig. 1.
Fig. 4 is the feeding mechanism in Fig. 2.
Fig. 5 is the structural representation of the cross section of feeding mechanism.
Fig. 6 is the front view of feed mechanism in Fig. 1.
Fig. 7 is the top view of Fig. 6.
Fig. 8 is the left view of Fig. 6.
Fig. 9 is the top view of discharging mechanism and lateral pressing structure of shoe in Fig. 1.
Figure 10 is the left view of discharging mechanism and Zhi Liao mechanism in Fig. 2.
Figure 11 is the structural representation of upper press mechanism in Fig. 2.
Figure 12 is the front view of horizontal slip mechanism.
Figure 13 is the front view of the borehole drill construction of piano hammerhead automatic drilling machine.
Figure 14 is the left view of the borehole drill construction of piano hammerhead automatic drilling machine.
Figure 15 is the flow chart of piano hammerhead automatic drilling machine and multi-angle piano hammerhead automatic drilling machine.
Figure 16 is the front view of piano hammerhead.
Figure 17 is the cutaway view of Figure 16, is bass hammerhead.
Figure 18 is the cutaway view of Figure 16, is middle pitch hammerhead.
Figure 19 is the cutaway view of Figure 16, is high pitch hammerhead.
Label in accompanying drawing and corresponding title below:
| 1 | Workpiece | 2 | Feed mechanism | 3 | Feeding mechanism |
| 4 | Discharging mechanism | 5 | Clamp mechanism | 6 | Frame |
| 7 | Borehole drill construction | 8 | Feed well | 9 | Feed well seat |
| 10 | Charging pushing block | 11 | Only expect cylinder | 12 | Upper holder block |
| 13 | Bracing wire | 14 | Fixed pulley | 15 | Movable pulley |
| 16 | Weight | 17 | Feeding cylinder | 18 | Feeding cylinder seat |
| 19 | Guide rail | 20 | Guide runner | 21 | Material feeding seat |
| 22 | Groove position | 23 | The floating junction of feeding cylinder | 24 | Pressure head |
| 25 | Straight pin | 26 | Cylindrical compression spring | 27 | Push rod |
| 28 | Horizontal component | 29 | Vertical component | 30 | Discharging cylinder |
| 31 | Discharging cylinder block | 32 | Discharging push pedal | 33 | Blow tank |
| 34 | Discharging rod | 35 | Side guide | 36 | Side pressure cylinder |
| 37 | Side pressure cylinder block | 38 | Upper air cylinder | 39 | Upper air cylinder seat |
| 40 | Rotate pressure arm | 41 | Cramp bar | 42 | Seaming chuck |
| 43 | The floating junction of upper air cylinder | 44 | Pneumatic brill | 45 | Borehole drill construction support |
| 46 | Cushion block | 47 | Horizontal slip mechanism | 48 | Bearing block |
| 49 | Turntable slide mechanism | 50 | Servomotor | 51 | Ball screw |
| 52 | Movable panel | 53 | Compress Spring |
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Embodiment mono-
Fig. 1, to Figure 3 shows that multi-angle piano hammerhead automatic drilling machine, comprising: feed mechanism 2, feeding mechanism 3, discharging mechanism 4, clamp mechanism 5, frame 6 and borehole drill construction 7.Along the linear feeding direction of feed mechanism 2, feed mechanism 2, feeding mechanism 3, discharging mechanism 4, clamp mechanism 5 and borehole drill construction 7 are successively set in frame 6.
Feed mechanism 2 shown in Fig. 6 to Fig. 8 comprises: feeding cylinder 17, feeding cylinder seat 18, guide rail 19, guide runner 20, material feeding seat 21, pressure head 24, straight pin 25, cylindrical compression spring 26 and push rod 27.Wherein material feeding seat 21 is provided with the groove position 22 of place work piece 1, is provided with ladder position in groove position 22, and in the time that workpiece 1 is placed in groove position 22, ladder position support workpiece 1, makes being holed towards upper of workpiece 1.Feeding cylinder 17 is installed in frame 6 by feeding cylinder seat 18.Floating junction 23 and the material feeding seat 21 of feeding cylinder join, and the below of material feeding seat 21 is provided with guide runner 20, and by guide runner 20, the guide rail 19 that material feeding seat 21 is laid along straight line is driven reciprocating motion by feeding cylinder seat 18.Feeding cylinder 17 has two-pass, and when feeding cylinder 17 moves back, material feeding seat 21 is just to feeding mechanism 3; When feeding cylinder 17 is positioned at the first travel position, material feeding seat 21 is just to clamp mechanism 5; When feeding cylinder 17 is positioned at the second travel position, material feeding seat 21 is just to discharging mechanism 4.Material feeding seat 21 is connected to pressure head 24 towards a side of feeding cylinder 17 by straight pin 25, and pressure head 24 comprises horizontal component 28 and vertical component 29, between vertical component 29 and material feeding seat 21, is provided with cylindrical compression spring 26.Push rod 27 is located at feeding cylinder seat 18 on the face of material feeding seat 21.In the time that feeding cylinder 17 enters, vertical component 29 leaves push rod 27, and under the effect of cylindrical compression spring 26, pressure head 24 turns clockwise, and the end of horizontal component 28 is clamped in workpiece 1 pre-determined bit in groove position 22.In the time that feeding cylinder 17 moves back, pressure head 24 is turn counterclockwise under the effect of push rod 27, and cylindrical compression spring 26 compresses, and upwards jack-up of the end of horizontal component 28 is clamped according to previous step after new workpiece 1 is inserted again.
Feeding mechanism 3 shown in Fig. 4, Fig. 5 and Figure 10 comprises: feed well 8, feed well seat 9, charging pushing block 10, hold-down mechanism and Zhi Liao mechanism.Feed well 8 is fixed in frame 6 by feed well seat 9.In feed well 8, be provided with ladder position, in the time that workpiece 1 is placed in feed well 8, ladder position can make being holed facing to top of workpiece 1.Charging pushing block 10, under the effect of hold-down mechanism, by push the outlet of feed well 8 at the interior stacked workpiece 1 of feed well 8 along thickness direction, enters in the groove position 22 of feed mechanism 2.Hold-down mechanism comprises: bracing wire 13, fixed pulley 14, movable pulley 15 and weight 16.Bracing wire 13 is fixed on the below of charging pushing block 10, after extending one section towards the Way out of feed well 8, walk around fixed pulley 14 to downward-extension, walk around the backward upper extension of movable pulley 15, the other end is fixed in frame 6, and movable pulley 15 connects weight 16, under the effect of weight 16, movable pulley 15 has the trend moving downward, and tension bracing wire 13, makes charging pushing block 10 have the trend of workpiece pressing 1.Zhi Liao mechanism 11 comprises: only expect cylinder 11 and by only expecting that cylinder 11 drives the upper holder block pumping.Only expect that cylinder 11 is positioned at the exit of feed well 8, compress the workpiece 1 that is positioned at end from top, stop workpiece 1 to enter feed mechanism 2, ensure once only to enter a workpiece 1.Feedstock direction is vertical with feed direction.
Discharging mechanism 4 shown in Fig. 9 to Figure 10 comprises: discharging cylinder 30, discharging cylinder block 31, discharging push pedal 32, blow tank 33 and discharging rod 34.Discharging cylinder 30 is fixed in frame 6 by discharging cylinder block 31, and be positioned at a side of feed direction, discharging cylinder 30 drives discharging push pedal 32 to move back and forth along discharging direction, discharging push pedal 32 is provided with discharging rod 34 away from a side of discharging cylinder 30, discharging rod 34 is pushed into workpiece 1 blow tank 33 from material feeding seat 21, often go out a defective material, workpiece 1 is outer moves a thickness position, and workpiece 1 is tight in the interior arrangement of blow tank 33.The structure of blow tank 33 can be identical with feed well 8, and discharge baffle (being equivalent to charging pushing block 10) can be set, and discharge baffle also can be connected to hold-down mechanism, and workpiece 1 is compressed to the entrance of blow tank 33.Discharging direction is vertical with feed direction.
Clamp mechanism shown in Fig. 9 and Figure 11 comprises: lateral pressing structure of shoe and upper press mechanism.Lateral pressing structure of shoe comprises: Compress Spring 53, side guide 35, side pressure cylinder 36 and side pressure cylinder block 37.Side pressure cylinder 36 is fixed in frame 6 by side pressure cylinder block 37, and side pressure cylinder 36 is by Compress Spring 53 transmission of pressures, and driving side pressing plate 35 is from side direction clamping work pieces 1.In the time that material feeding seat 21 is provided with the protruding parts that withstand workpiece 1 opposite side, can use lateral pressing structure of shoe in a side; In the time that opposite side does not withstand the parts of workpiece 1, can lateral pressing structure of shoe be all set both sides.Upper press mechanism comprises: upper air cylinder 38, upper air cylinder seat 39, rotation pressure arm 40, cramp bar 41 and seaming chuck 42.Upper air cylinder 38 is fixed in frame 6 by upper air cylinder seat 39, rotates the interlude of pressure arm 40 and the top rotary type of cramp bar 41 and is connected, as connected by rotating shaft or straight pin connection.The below, one end of rotating pressure arm 40 is provided with seaming chuck 42, and other end below is connected with floating junction 43 rotary types of upper air cylinder, as being connected by Y type double-toggle joint and Wrist joint pin.In the time that upper air cylinder 38 moves back, the right side of rotating pressure arm 40 moves down, and rotates pressure arm 40 and rotates on cramp bar 41, and the left side of rotating pressure arm 40 drives on seaming chuck 42 to be moved, and unclamps workpiece 1; In the time that upper air cylinder 38 enters, on the right side of rotation pressure arm 40, move, to rotate pressure arm 40 and rotate on cramp bar 41, the left side of rotating pressure arm 40 drives seaming chuck 42 to move down, from top clamping work pieces 1.After workpiece 1 is clamped, can start Drilling operation.
Borehole drill construction 7 shown in Fig. 1, Fig. 3 and Figure 12 comprises: pneumatic brill 44, cushion block 46, horizontal slip mechanism 47, bearing block 48 and turntable slide mechanism 49.Horizontal slip mechanism 47 comprises: servomotor 50, ball screw 51 and movable panel 52, servomotor 50 drives ball screw 51 to carry out back rotation, thereby drives movable panel 52 left and right translations, and then drives the mechanism's translation on movable panel 52.Pneumatic brill 44 has feeding and drilling function.Pneumatic brill 44 is arranged on turntable slide mechanism 49, and the rotating shaft of turntable slide mechanism 49 is installed in bearing block 48 and then turntable slide mechanism 49 can drive pneumatic brill 44 to relatively rotate with bearing block 48, thereby adjusts the direction of the drill bit of pneumatic brill 44.Turntable slide mechanism 49 is fixed on movable panel 52, and horizontal slip mechanism 47 is fixed in frame 6 by cushion block 46.Turntable slide mechanism 49 can have the fine adjustment function of lateral position simultaneously.
Piano hammerhead shown in Figure 16, thickness direction is the direction perpendicular to paper.Treat that bore surfaces is the left surface of reel.Figure 17 is the section of bass hammerhead, and Figure 18 is the section of middle pitch hammerhead, and Figure 19 is the section of high pitch hammerhead.
Shown in Figure 15, when the work of multi-angle piano hammerhead automatic drilling machine, by workpiece stacked feed well of putting on thickness direction, workpiece, under the effect of hold-down mechanism, is pushed into material feeding seat near innermost workpiece, optoelectronic switch induction, only expect that cylinder enters, stop next workpiece to advance; Feeding cylinder enters, and workpiece is admitted to the first travel position with material feeding seat; Side pressure cylinder and upper air cylinder enter, from three direction clamping work pieces; In the time that bore angle is constant, pneumatic brill starts, complete boring, in the time that bore angle changes, according to default angle, horizontal slip mechanism moving belt is taken offence and is bored translational adjustment position, left and right, and turntable slide mechanism rotates and drives pneumatic brill to rotate adjusting angle, after adjusting to the right place, pneumatic brill starts, and completes boring; Side pressure cylinder moves back, upper air cylinder moves back and unclamps workpiece; The second travel position delivered to by workpiece by feeding cylinder; Discharging cylinder enters to move back, and workpiece is pushed into blow tank from material feeding seat; Feeding cylinder moves back, and material feeding seat resets; Only expect that cylinder moves back, remove and stop, next workpiece enters material feeding seat, carries out the cyclic process of next round.In the time that the workpiece in blow tank runs up to some, manually workpiece is taken out.
This multi-angle piano hammerhead automatic drilling machine, can be used for processing hammerhead hole at any angle, comprising: high pitch hammerhead, middle pitch hammerhead and bass hammerhead.As long as regulate angle and the position of the drill bit of pneumatic brill 44, can get out the hole of different angles.
Embodiment bis-
Piano hammerhead automatic drilling machine in the present embodiment, its borehole drill construction as shown in Figure 13 and Figure 14, comprising: pneumatic brill 44 and borehole drill construction support 45.Pneumatic brill 44 is fixed in frame 6 by borehole drill construction support 45.On borehole drill construction support 45, can reserve many group installing holes, when pneumatic brill 44 is fixed on borehole drill construction support 45 by different installing holes, can form different bore angles, once but after installing, each translation-angle, needs hand disassembly to install.Therefore be applicable to the fixing hammerhead hole of machining angle in enormous quantities, for example: bass hammerhead and high pitch hammerhead.
Shown in Figure 15, when the work of piano hammerhead automatic drilling machine, can only advance according to the constant step of bore angle.The not mentioned part of the present embodiment is with embodiment mono-.
Embodiment tri-
The present embodiment is a kind of piano hammerhead automatic drilling system, comprising: a first piano hammerhead automatic drilling machine, a second piano hammerhead automatic drilling machine and a multi-angle piano hammerhead automatic drilling machine.
Multi-angle piano hammerhead automatic drilling machine is used for processing middle pitch hammerhead, and structure is with described in embodiment mono-, for processing 30 middle pitch hammerheads, in the visual angle of Fig. 2, boring direction left, in the visual angle of Fig. 3, feeding mechanism is positioned at the top of feed direction, and discharging mechanism is positioned at the below of feed direction.The 31st to No. 36 hammerheads, hole 16 degree that are tilted to the left, the 37th to No. 42 hammerheads, hole 12 degree that are tilted to the left, the 43rd to No. 48 hammerheads, hole 8 degree that are tilted to the left, the 49th to No. 54 hammerheads, hole 4 degree that are tilted to the left, the 55th to No. 60 hammerheads, hole 1 degree that is tilted to the left.Under the effect of discharging mechanism, the hammerhead after processing, also can be arranged in order automatically.
The first piano hammerhead automatic drilling machine is exclusively used in processing bass hammerhead, structure is with the string mallet automatic drilling machine in embodiment bis-, be used for processing 30 bass hammerheads, in the visual angle of choosing at Fig. 2, boring direction to the right, in the visual angle of choosing at Fig. 3, feeding mechanism is positioned at the below of feed direction, and discharging mechanism is positioned at the top of feed direction.The 1st to No. 30 hammerheads, be tilted to the right 30 points of 19 degree of hole, are fixed angle.
The second piano hammerhead automatic drilling machine is exclusively used in processing high pitch hammerhead, structure is with the string mallet automatic drilling machine in embodiment bis-, be used for processing 28 high pitch hammerheads, in the visual angle of choosing at Fig. 2, boring direction is placed in the middle, in the visual angle of choosing at Fig. 3, feeding mechanism is positioned at the below of feed direction, and discharging mechanism is positioned at the top of feed direction.The 61st to No. 88 hammerheads, Kong Fei is obliquely installed, and is fixed angle.
The not mentioned part of the present embodiment is with embodiment mono-and embodiment bis-.
Claims (8)
1. a piano hammerhead automatic drilling machine, comprise: the borehole drill construction of holing on workpiece with drill bit, is characterized in that: it also comprises: make feed mechanism that workpiece moves up in linear feeding side, by the workpiece before boring send into successively the feeding mechanism of feed mechanism, when the workpiece after boring is sent to discharging mechanism, the boring of feed mechanism successively by the clamp mechanism of Workpiece clamping and frame; Along feed direction, feed mechanism, feeding mechanism, discharging mechanism, clamp mechanism and borehole drill construction are successively set in frame; Drill bit is positioned at the top of clamp mechanism; The discharging direction of the feedstock direction of feeding mechanism and discharging mechanism is vertical with feed direction; Feeding mechanism comprises: feed well, feed well seat, charging pushing block, hold-down mechanism and Zhi Liao mechanism; Feed well is installed in frame by feed well seat, and is positioned at sustained height with feed direction; The thickness direction of workpiece, the length direction of feed well are consistent with feedstock direction; Multiple workpiece are stacked and placed in feed well along thickness direction; Charging pushing block is the Way out workpiece pressing to feed well by hold-down mechanism; Zhi Liao mechanism comprises: only expect cylinder, and by the upper holder block of only expecting air cylinder driven; While only expecting that cylinder enters or moves back, upper holder block compresses or leaves the workpiece of the outlet that is positioned at feed well;
Feed mechanism comprises: have two-pass feeding cylinder, feeding cylinder seat, guide rail, guide runner, top and be provided with the material feeding seat for the groove position of place work piece; Feeding cylinder is fixed in frame by feeding cylinder seat; Floating junction and the material feeding seat of feeding cylinder are fixed; Material feeding seat moves back and forth on guide rail by guide runner; In the time that feeding cylinder moves back, groove position is just to feeding mechanism; In the time that feeding cylinder is positioned at the first travel position, groove position is just to clamp mechanism; In the time that feeding cylinder is positioned at the second travel position, groove position is just to discharging mechanism.
2. according to piano hammerhead automatic drilling machine claimed in claim 1, it is characterized in that: described hold-down mechanism comprises: bracing wire, fixed pulley, movable pulley and weight; One end of bracing wire taps into after material pushing block, extends one section, then walks around fixed pulley to downward-extension, then walk around movable pulley and upwards extend to the Way out of feed well, and the other end is relative with frame fixing; Weight is fixed on movable pulley.
3. according to piano hammerhead automatic drilling machine claimed in claim 1, it is characterized in that: described feed mechanism also comprises: pressure head, straight pin, cylindrical compression spring and push rod; Pressure head is fixed on material feeding seat by straight pin, comprises horizontal component and vertical portion, and cylindrical compression spring is between vertical portion and material feeding seat; Push rod is positioned on feeding cylinder seat; In the time that feeding cylinder moves back, push rod withstands vertical component, cylindrical compression spring compression, and pressure head rotates around straight pin, and workpiece is left in the end of horizontal component; In the time that feeding cylinder enters, vertical component leaves push rod, and cylindrical compression spring resets, and pressure head reverses around straight pin, the end workpiece pressing of horizontal component.
4. according to piano hammerhead automatic drilling machine claimed in claim 1, it is characterized in that: described discharging mechanism comprises: discharging cylinder, discharging cylinder block, discharging push pedal, blow tank and discharging rod; Discharging cylinder is fixed in frame by discharging cylinder block; Discharging rod is fixed on the side of discharging push pedal away from discharging cylinder; Discharging cylinder moves back and forth along discharging direction in a side drive discharging push pedal of feed direction; Blow tank is positioned at the opposite side of feed direction and just to discharging push pedal, height and the feed direction of blow tank are corresponding; When discharging cylinder enters, workpiece is moved to blow tank by discharging rod.
5. according to piano hammerhead automatic drilling machine claimed in claim 1, it is characterized in that: described clamp mechanism comprises lateral pressing structure of shoe and upper press mechanism; Lateral pressing structure of shoe comprises: Compress Spring, side guide, side pressure cylinder and side pressure cylinder block; Side pressure cylinder is fixed in frame by side pressure cylinder block; When side pressure cylinder enters, promote side guide from side direction clamping work pieces by Compress Spring; When side pressure cylinder moves back, side guide leaves workpiece; Upper press mechanism comprises: upper air cylinder, upper air cylinder seat, rotation pressure arm, cramp bar and seaming chuck; Upper air cylinder is fixed in frame by upper air cylinder seat; The middle part of rotating pressure arm is connected with cramp bar rotary type, and cramp bar is fixed in frame; The below, one end of rotating pressure arm is provided with seaming chuck, and the other end is connected with the floating junction rotary type of upper air cylinder; When upper air cylinder enters, rotate pressure arm and rotate on cramp bar, seaming chuck is downward, the top of workpiece pressing.
6. according to the piano hammerhead automatic drilling machine described in any one in claim 1 to 5, it is characterized in that: described borehole drill construction comprises pneumatic brill and borehole drill construction support; The pneumatic borehole drill construction support that drilled through is arranged in frame; When pneumatic creeping into, drill bit is just to workpiece.
7. a multi-angle piano hammerhead automatic drilling machine, is characterized in that: the borehole drill construction of piano hammerhead automatic drilling machine claimed in claim 6 is replaced with to the borehole drill construction that comprises cushion block, horizontal slip mechanism, bearing block, turntable slide mechanism and pneumatic brill; Horizontal slip mechanism comprises: servomotor, ball screw and movable panel, and servomotor drives ball screw to rotate and then drives movable panel along feed direction two side shiftings; The rotating shaft of turntable slide mechanism is arranged in bearing block, and turntable slide mechanism rotates with respect to bearing block; The pneumatic turntable slide mechanism that drilled through is installed on bearing block, and bearing block is installed on cushion block by horizontal slip mechanism, and cushion block is installed in frame.
8. a piano hammerhead automatic drilling system, is characterized in that: comprising: for processing the first piano hammerhead automatic drilling machine of bass hammerhead, for processing the second piano hammerhead automatic drilling machine of high pitch hammerhead, for processing the multi-angle piano hammerhead automatic drilling machine of middle pitch hammerhead; The structure of the first piano hammerhead automatic drilling machine and the second piano hammerhead automatic drilling machine as claimed in claim 6; The structure of multi-angle piano hammerhead automatic drilling machine as claimed in claim 7; The pneumatic brill of the second piano hammerhead automatic drilling machine is arranged along vertical direction, pneumatic brill and the vertical direction of the first piano hammerhead automatic drilling machine have amesiality fixed angle, and the pneumatic brill of multi-angle piano hammerhead automatic drilling machine and vertical direction have the included-angle-changeable of deflection opposite side.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110430965.0A CN102490212B (en) | 2011-12-20 | 2011-12-20 | Automatic drilling machine for piano hammer heads, multi-angle automatic drilling machine for piano hammer heads and automatic drilling system for piano hammer heads |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110430965.0A CN102490212B (en) | 2011-12-20 | 2011-12-20 | Automatic drilling machine for piano hammer heads, multi-angle automatic drilling machine for piano hammer heads and automatic drilling system for piano hammer heads |
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| CN102490212A CN102490212A (en) | 2012-06-13 |
| CN102490212B true CN102490212B (en) | 2014-10-08 |
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| CN103264404B (en) * | 2013-05-22 | 2014-12-03 | 广州珠江恺撒堡钢琴有限公司 | Piano hammer head automatic cutting machine and method of cutting hammer head |
| CN103273543B (en) * | 2013-06-14 | 2015-03-18 | 广州珠江恺撒堡钢琴有限公司 | Automatic drilling machine for mediant hammer head in piano and drilling method |
| CN104385394B (en) * | 2014-12-01 | 2017-03-22 | 潘义君 | Automatic tenoning machine |
| CN107905729B (en) * | 2017-11-27 | 2023-10-03 | 铁万林 | Four-arm rock perforating device and four-arm rock perforating machine with same |
| CN110027077A (en) * | 2019-05-17 | 2019-07-19 | 昆山建屹五金有限公司 | A kind of circular fan mandarin fan handle equipment for automatically processing |
| CN112454543A (en) * | 2020-11-25 | 2021-03-09 | 德清方华琴业有限公司 | Automatic drilling equipment for piano mediant hammer head |
| CN113386210B (en) * | 2021-07-05 | 2022-04-19 | 信阳职业技术学院 | Drilling mechanism for piano manufacture |
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| CN102490212A (en) | 2012-06-13 |
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Owner name: BEIJING PEARL RIVER PIANO MANUFACTURING CO., LTD. Free format text: FORMER OWNER: PEARL RIVER PIANO GROUP CO., LTD. Effective date: 20150320 |
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