CN102490212A - 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 PDF

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Publication number
CN102490212A
CN102490212A CN2011104309650A CN201110430965A CN102490212A CN 102490212 A CN102490212 A CN 102490212A CN 2011104309650 A CN2011104309650 A CN 2011104309650A CN 201110430965 A CN201110430965 A CN 201110430965A CN 102490212 A CN102490212 A CN 102490212A
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China
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automatic drilling
cylinder
discharging
drilling machine
workpiece
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CN2011104309650A
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CN102490212B (en
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梁志和
廖志辉
何淦
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BEIJING PEARL RIVER PIANO MANUFACTURING CO., LTD.
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Guangzhou Pearl River Piano Group Co Ltd
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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

Piano hammerhead automatic drilling machine, multi-angle piano hammerhead automatic drilling machine and piano hammerhead automatic drilling system
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
The piano hammerhead is the part that knocks the string pronunciation.The quality of hammerhead directly has influence on the quality of piano acoustic quality.And the angle precision between hammerhead reel and the hammerhead handle has directly determined piano struck string point precision, in case hammerhead can not impact the desirable string point that hits, the tonequality of piano will receive very big influence.There is important getting in touch in the hole of boring on angle precision between hammerhead reel and the hammerhead handle and the 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 the bass hammerhead, middle pitch hammerhead, high pitch hammerhead.For the high pitch hammerhead, the hole is a straight hole; For the bass hammerhead, a side of the angle deflection hammerhead reel in hole is fixed angle; For the middle pitch hammerhead, the opposite side of the angle deflection hammerhead reel in hole, size is stepped change, corresponding a plurality of angle numerical value.
Existing hammerhead boring method is: workpiece is placed in advance in the mould of formulating tight, makes workpiece and drill bit become different angles with hand, and the downward feeding of manual adjustments drill bit, thus process the hole of different angles on the workpiece.Adopt this method, have following shortcoming: 1. need mould of the corresponding preparation of every kind of angle; 2. workpiece pressing leans on staff, and labour intensity is big; Place work piece, workpiece pressing, take out workpiece, more manual operation, inefficiency are leaned in mold exchange and drill bit feeding entirely; 4. workpiece size is less, and workpiece pressing adds man-hour, and drill bit hurts hand easily, needs the workman to have very strong operative skill, could guarantee safety and produce efficiently; 5. percent defective is high.
Summary of the invention
To the technical problem that exists in the prior art, first purpose of the present invention is: but provide a kind of simple in structure, drilling quality is high and the piano hammerhead automatic drilling machine of batch ticket angle automatic drilling.
Second purpose 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 purpose of the present invention is: the piano hammerhead automatic drilling system that provides a kind of and effectively increase work efficiency, can add carefully and neatly done all hammerheads of platform piano.
In order to reach first purpose, the present invention adopts following technical scheme:
A kind of piano hammerhead automatic drilling machine; Comprise: with the borehole drill construction that drill bit is holed on workpiece, it also comprises: the feeding mechanism of make feed mechanism that workpiece moves on the linear feeding direction, the workpiece before will hole being sent into feed mechanism successively, the workpiece after will holing see the discharging mechanism of feed mechanism successively off, when holing with the clamp mechanism and the frame of workpiece clamping; Along feed direction, feed mechanism, feeding mechanism, discharging mechanism, clamp mechanism and borehole drill construction are successively set on the 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.
After adopting this structure, workpiece gets into feed mechanism through feeding mechanism, and feed mechanism is delivered to the position of clamp mechanism with workpiece, and clamp mechanism clamps workpiece, supplies borehole drill construction processing; After machining, clamp mechanism is unclamped, and feed mechanism is delivered to discharging mechanism with workpiece, and under the effect of discharging mechanism, workpiece leaves feed mechanism; Feed mechanism is got back to initial position, carries out boring processing next time.Only need workpiece is put into feeding mechanism, get final product automatic drilling, need not to possess specialty or special operational technical ability, labour intensity is low, high efficiency, 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 only expect mechanism; Feed well is installed on the frame through the 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; A plurality of workpiece are stacked and placed in the feed well along thickness direction; The charging pushing block is through the Way out workpiece pressing of hold-down mechanism to feed well; Only expect that mechanism comprises: only expect cylinder, and by the upper holder block of only expecting air cylinder driven; Only expect that cylinder advances or when moving back, upper holder block compresses or leave the workpiece of the outlet that is positioned at feed well.
After adopting this structure, workpiece is stacked in feed well on the thickness direction, and under the effect of hold-down mechanism, workpiece is pushed to the outlet of feed well, and then gets into feed mechanism; Under the effect of only expecting mechanism, upper holder block is being pressed the workpiece upper end of the outlet that is positioned at feed well, guarantees once to have only a workpiece to get into feed mechanism.Simple in structure, charging is reliable.Because workpiece side is in being erected in feed well; The bottom of workpiece is not the plane, for let workpiece put steady and let workpiece treat bore surfaces towards the top, be provided with the ladder position in the feed well; When one end of workpiece was positioned on the ladder position, the bore surfaces of treating of workpiece adapted to the position towards the top.
Hold-down mechanism comprises: backguy, fixed pulley, movable pulley and weight; Behind the one termination charging pushing block of backguy, extend one section, walk around fixed pulley again, walk around movable pulley again and extend upward, the other end and frame relative fixed to extending below to the Way out of feed well; Weight is fixed on the movable pulley.
After adopting this structure, backguy is strained, and then, make the charging pushing block release workpiece the Way out tractive of charging pushing block to feed well through the weight of weight.Simple in structure, charging is reliable.
Feed mechanism comprises: have the material feeding seat that two-pass feeding cylinder, feeding cylinder seat, guide rail, guide runner, top are provided with the groove position that is used for place work piece; Feeding cylinder is fixed on the frame through the feeding cylinder seat; The floating junction and the material feeding seat of feeding cylinder are fixed; Material feeding seat moves back and forth on guide rail through guide runner; When feeding cylinder moved back, the groove position was over against feeding mechanism; When feeding cylinder was positioned at first travel position, the groove position was over against clamp mechanism; When feeding cylinder was positioned at second travel position, the groove position was over against discharging mechanism.
After adopting this structure, feeding cylinder is along line slideway conveying workpieces back and forth.Workpiece is seen first travel position off at initial position, the processing of holing of clamped grips; After machining, the feeding cylinder withdrawal is delivered to the second travel position discharging with workpiece; Material feeding seat is got back to initial position after the discharging, treats that feeding mechanism sends in the groove position of new workpiece to material feeding seat, carries out the boring processing of next round.Simple in structure, feeding is reliable, accurate positioning, and can accurately control the stop of feeding cylinder, flexible time.The groove position also comprises a ladder position, when an end of workpiece is positioned on the ladder position, workpiece treat the position that bore surfaces adapts to towards the top.
Feed mechanism also comprises: pressure head, straight pin, cylindrical compression spring and push rod; Pressure head is fixed on the material feeding seat through straight pin, comprises horizontal component and vertical part, and cylindrical compression spring is vertically between part and the material feeding seat; Push rod is positioned on the feeding cylinder seat; When feeding cylinder moved back, push rod withstood vertical component, the cylindrical compression spring compression, and pressure head rotates around straight pin, and workpiece is left in the end of horizontal component; When feeding cylinder advanced, vertical component left push rod, and cylindrical compression spring resets, and pressure head reverses around straight pin, the end workpiece pressing of horizontal component.
After adopting this structure, the vertical component of pressure head is fixed on the side of material feeding seat towards the feeding cylinder seat through 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 the 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; The discharging cylinder is fixed on the frame through the discharging cylinder block; Discharging rod is fixed on the side of discharging push pedal away from the discharging cylinder; The discharging cylinder moves back and forth along the discharging direction in a side drive discharging push pedal of feed direction; Blow tank is positioned at the opposite side of feed direction and over against the discharging push pedal, the height and the feed direction of blow tank are corresponding; When the discharging cylinder advanced, discharging rod moved to blow tank with workpiece.
After adopting this structure, control discharging cylinder is flexible, can accomplish the discharging action.Workpiece is arranged in blow tank, whenever goes out a defective material, and workpiece moves the thickness position of a workpiece outward, when treating that workpiece in the blow tank runs up to some, takes out by the gross again, and the long at interval time just needs manually-operated once.Simple in structure, practice thrift manpower, easy to operate.
Clamp mechanism comprises side pressure mechanism and last press mechanism; Side pressure mechanism comprises: compression spring, side guide, side pressure cylinder and side pressure cylinder block; The side pressure cylinder is fixed on the frame through the side pressure cylinder block; When the side pressure cylinder advances, promote side guide from the side direction clamping work pieces through the compression spring; When the side pressure cylinder moved back, side guide left workpiece; Last press mechanism comprises: go up air cylinder, go up the air cylinder seat, rotate pressure arm, cramp bar and seaming chuck; Last air cylinder is fixed on the frame through last air cylinder seat; The middle part of rotating pressure arm is connected with the cramp bar rotary type, and cramp bar is fixed on the frame; The one end below of rotating pressure arm is equipped with seaming chuck, and the other end is connected with the floating junction rotary type of last air cylinder; When last air cylinder advances, rotate pressure arm and on cramp bar, rotate, seaming chuck is downward, the top of workpiece pressing.
After adopting this structure, being withstood by the parts of feed mechanism when workpiece one side, for example is the step of material feeding seat raising, and the opposite side of workpiece is through side pressure mechanism location, and the top can guarantee the reliable location of workpiece through last press mechanism location.When workpiece one side does not have parts that it is withstood, side pressure mechanism can be set at lateral register in the both sides of workpiece, the top is through last press mechanism location.Behind the location, the workpiece reliable clamping can not be shifted in boring procedure, guarantees 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 installed on the frame; During pneumatic creeping into, drill bit is over against workpiece.
After adopting pneumatic brill, the rotary drilling action of drill bit can not only be realized, the advance and retreat action of drill bit can also be realized simultaneously, simple in structure, easy to operate.Pneumatic brill is commercially available parts on the market.Change the pneumatic setting angle that is drilled on the borehole drill construction support, can on workpiece, bore the hole of different angles.But after installing, pneumatic brill can only form fixing angle, is suitable for fixed angle boring in enormous quantities.
In order to reach second purpose, 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 each described piano hammerhead automatic drilling machine in the 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, servomotor drive ball screw and rotate and then drive movable panel along feed direction two side shiftings; The rotating shaft of turntable slide mechanism is arranged in bearing block, and the turntable slide mechanism rotates with respect to bearing block; The pneumatic turntable slide mechanism that drilled through is installed on the bearing block, and bearing block is installed on the cushion block through horizontal slip mechanism, and cushion block is installed on the frame.
After adopting this structure, horizontal slip mechanism can make both sides (be feedstock direction) the back and forth translation of pneumatic brill along feed direction; The turntable slide mechanism can make pneumatic brill rotate around bearing block.Only need before the equipment operation, parameter preset is regulated the 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, and is simple in structure, easy to operate.
In order to reach the 3rd purpose, the present invention adopts following technical scheme:
A kind of piano hammerhead automatic drilling system is characterized in that: comprising: be used to process the bass hammerhead the first piano hammerhead automatic drilling machine, be used to process the high pitch hammerhead the second piano hammerhead automatic drilling machine, be used to process 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; The 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 variable angle of deflection opposite side.
In a piano, because the bass hammerhead, the shared ratio of high pitch hammerhead quantity is big, and own angle of fixing is arranged respectively, 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, second a piano hammerhead automatic drilling machine that is exclusively used in processing high pitch hammerhead, accomplish the processing in high and low sound hammerhead hole.Cooperate the multi-angle piano hammerhead automatic drilling machine of a processing middle pitch hammerhead again, accomplish the processing of all the other middle pitch hammerheads.This compound mode is higher with 88 hammerhead working (machining) efficiencies of multi-angle piano hammerhead automatic drilling machine processing than separately, has omitted and has adjusted the time of bass, high pitch hammerhead machining angle, and can process simultaneously by three equipment.
Generally speaking, the present invention has following advantage: simple in structure, effectively improve crudy and working (machining) efficiency, but batch automatic production.
Description of 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 vertical view (not shown borehole drill construction part assembly) of Fig. 1.
Fig. 4 is the feeding mechanism among Fig. 2.
Fig. 5 is the structural representation of the cross section of feeding mechanism.
Fig. 6 is the front view of feed mechanism among Fig. 1.
Fig. 7 is the vertical view of Fig. 6.
Fig. 8 is the left view of Fig. 6.
Fig. 9 is the vertical view of discharging mechanism and side pressure mechanism among Fig. 1.
Figure 10 is a discharging mechanism and only expect the left view of mechanism among Fig. 2.
Figure 11 is a structural representation of going up press mechanism among 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 the bass hammerhead.
Figure 18 is the cutaway view of Figure 16, is the middle pitch hammerhead.
Figure 19 is the cutaway view of Figure 16, is the high pitch hammerhead.
Be the label and corresponding title in the accompanying drawing 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 The feed well seat
10 The charging pushing block 11 Only expect cylinder 12 Upper holder block
13 Backguy 14 Fixed pulley 15 Movable pulley
16 Weight 17 Feeding cylinder 18 The feeding cylinder seat
19 Guide rail 20 Guide runner 21 Material feeding seat
22 The 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 The discharging cylinder
31 The discharging cylinder block 32 The discharging push pedal 33 Blow tank
34 Discharging rod 35 Side guide 36 The side pressure cylinder
37 The side pressure cylinder block 38 Last air cylinder 39 Last air cylinder seat
40 Rotate pressure arm 41 Cramp bar 42 Seaming chuck
43 The floating junction of last air cylinder 44 Pneumatic brill 45 The borehole drill construction support
46 Cushion block 47 Horizontal slip mechanism 48 Bearing block
49 The turntable slide mechanism 50 Servomotor 51 Ball screw
52 Movable panel 53 The compression spring
The specific embodiment
To combine the accompanying drawing and the specific embodiment to come the present invention is done further detailed explanation below.
Embodiment one
Fig. 1 is extremely shown in Figure 3 to be 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 on the frame 6.
Fig. 6 extremely feed mechanism 2 shown in Figure 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 the ladder position in the groove position 22, and when workpiece 1 was placed in the groove position 22, ladder position support workpiece 1 made being made progress by bore surfaces of workpiece 1.Feeding cylinder 17 is installed on the frame 6 through feeding cylinder seat 18.The 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 through guide runner 20, the guide rail 19 that material feeding seat 21 is laid along straight line is driven by feeding cylinder seat 18 and moves back and forth.Feeding cylinder 17 has two-pass, and when feeding cylinder 17 moved back, material feeding seat 21 was over against feeding mechanism 3; When feeding cylinder 17 was positioned at first travel position, material feeding seat 21 was over against clamp mechanism 5; When feeding cylinder 17 was positioned at second travel position, material feeding seat 21 was over against discharging mechanism 4.Material feeding seat 21 is connected to pressure head 24 towards a side of feeding cylinder 17 through straight pin 25, and pressure head 24 comprises horizontal component 28 and vertical component 29, is provided with cylindrical compression spring 26 between vertical component 29 and the material feeding seat 21.Push rod 27 is located at feeding cylinder seat 18 on the face of material feeding seat 21.When feeding cylinder 17 advanced, vertical component 29 left 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 the groove position 22.When feeding cylinder 17 moved back, pressure head 24 is counterclockwise turn under the effect of push rod 27, cylindrical compression spring 26 compression, and the end of horizontal component 28 jack-up that makes progress treats according to a last step it to be clamped after new workpiece 1 is inserted again.
Fig. 4, Fig. 5 and feeding mechanism 3 shown in Figure 10 comprise: feed well 8, feed well seat 9, charging pushing block 10, hold-down mechanism and only expect mechanism.Feed well 8 is fixed on the frame 6 through feed well seat 9.Be provided with the ladder position in the feed well 8, when workpiece 1 places feed well 8, the ladder position can make workpiece 1 by bore surfaces towards the top.Charging pushing block 10 will be pushed the outlet of feed well 8 along thickness direction stacked workpiece 1 in feed well 8 under the effect of hold-down mechanism, get in the groove position 22 of feed mechanism 2.Hold-down mechanism comprises: backguy 13, fixed pulley 14, movable pulley 15 and weight 16.Backguy 13 is fixed on the below of charging pushing block 10, extend one section towards the Way out of feed well 8 after, walk around fixed pulley 14 to extending below; Extend upward after walking around movable pulley 15, the other end is fixed on the frame 6, and movable pulley 15 connects weight 16; Under the effect of weight 16; Movable pulley 15 has the trend of downward motion, and tension backguy 13 makes charging pushing block 10 that the trend of workpiece pressing 1 arranged.Only expect that mechanism 11 comprises: only expect cylinder 11 and by only expecting that cylinder 11 drives the upper holder block that pumps.Only expect that cylinder 11 is positioned at the exit of feed well 8, compress the workpiece 1 that is positioned at end from the top, stop workpiece 1 to get into feed mechanism 2, guarantee once only to advance a workpiece 1.Feedstock direction is vertical with feed direction.
Fig. 9 extremely discharging mechanism 4 shown in 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 on the frame 6 through discharging cylinder block 31; And be positioned at a side of feed direction, discharging cylinder 30 drives discharging push pedal 32 and moves back and forth along the discharging direction, and 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; Whenever go out a defective material, workpiece 1 is promptly outer to move a thickness position, and workpiece 1 is arranged in blow tank 33 closely.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 the inlet of workpiece 1 to blow tank 33 compressed.The discharging direction is vertical with feed direction.
Fig. 9 and clamp mechanism shown in Figure 11 comprise: side pressure mechanism and last press mechanism.Side pressure mechanism comprises: compression spring 53, side guide 35, side pressure cylinder 36 and side pressure cylinder block 37.Side pressure cylinder 36 is fixed on the frame 6 through side pressure cylinder block 37, and side pressure cylinder 36 transmits pressure through compression spring 53, and driving side pressing plate 35 is from side direction clamping work pieces 1.When material feeding seat 21 is provided with the parts of the convexity of withstanding workpiece 1 opposite side, can use side pressure mechanism in a side; When opposite side does not withstand the parts of workpiece 1, but both sides all are provided with side pressure mechanism.Last press mechanism comprises: go up air cylinder 38, go up air cylinder seat 39, rotate pressure arm 40, cramp bar 41 and seaming chuck 42.Last air cylinder 38 is fixed on the frame 6 through last air cylinder seat 39, and the interlude that rotates pressure arm 40 is connected with the top rotary type of cramp bar 41, as connecting through rotating shaft connection or straight pin.The one end below of rotating pressure arm 40 is provided with seaming chuck 42, and other end below is connected with floating junction 43 rotary types of last air cylinder, as being connected through Y type double-toggle joint and Wrist joint pin.When last air cylinder 38 moved back, the right side of rotating pressure arm 40 moved down, and rotated pressure arm 40 and on cramp bar 41, rotated, and the left side of rotating pressure arm 40 drives on the seaming chuck 42 to be moved, and unclamps workpiece 1; When last air cylinder 38 advances, move on the right side of rotation pressure arm 40, to rotate pressure arm 40 and on cramp bar 41, rotate, the left side of rotating pressure arm 40 drives seaming chuck 42 and moves down, and clamping work pieces 1 from the top.After workpiece 1 is clamped, can begin boring processing.
Fig. 1, Fig. 3 and borehole drill construction 7 shown in Figure 12 comprise: 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 drive ball screw 51 and come back rotation, thereby drive movable panel 52 left and right sides translations, and then drive the mechanism's translation on the movable panel 52.Pneumatic brill 44 has feeding and boring function.Pneumatic brill 44 is installed on the turntable slide mechanism 49, and the rotating shaft of turntable slide mechanism 49 is installed in the bearing block 48 and then turntable slide mechanism 49 can drive pneumatic brill 44 and bearing block 48 relatively rotates, thereby adjusts the direction of the drill bit of pneumatic brill 44.Turntable slide mechanism 49 is fixed on the movable panel 52, and horizontal slip mechanism 47 is fixed on the frame 6 through 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 are 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, during the work of multi-angle piano hammerhead automatic drilling machine, with workpiece stacked feed well of putting on thickness direction; Workpiece is pushed into material feeding seat near innermost workpiece under the effect of hold-down mechanism, the optoelectronic switch induction; Only expect that cylinder advances, stop next workpiece to advance; Feeding cylinder advances, and workpiece is admitted to first travel position with material feeding seat; Side pressure cylinder and last air cylinder advance, from three direction clamping work pieces; When bore angle was constant, pneumatic brill started, and accomplished boring; When bore angle changes; According to preset angle, horizontal slip mechanism moving belt is taken offence and is bored translational adjustment position, the left and right sides, and turntable slide mechanism rotating band is taken offence to bore and rotated adjusting angle; The pneumatic brill in back of adjusting to the right place starts, and accomplishes boring; The side pressure cylinder moves back, upward air cylinder moves back and unclamps workpiece; Feeding cylinder is delivered to second travel position with workpiece; The discharging cylinder advances promptly 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 prevention, next workpiece gets into material feeding seat, carries out the cyclic process of next round.When the workpiece in the blow tank ran up to some, workpiece was taken out in manual work.
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 the angle and the position of the drill bit of pneumatic brill 44, can get out the hole of different angles.
Embodiment two
Piano hammerhead automatic drilling machine in the present embodiment, its borehole drill construction such as Figure 13 and shown in Figure 14 comprise: pneumatic brill 44 and borehole drill construction support 45.Pneumatic brill 44 is fixed on the frame 6 through borehole drill construction support 45.Can reserve many group installing holes on the borehole drill construction support 45, when pneumatic brill 44 is fixed on borehole drill construction support 45 through different installing holes, can form different bore angles, but in case after installing, each translation-angle needs hand disassembly to install.Therefore be applicable to the hammerhead hole that machining angle in enormous quantities is fixing, for example: bass hammerhead and high pitch hammerhead.
Shown in Figure 15, during the work of piano hammerhead automatic drilling machine, can only advance according to the constant step of bore angle.The not mentioned part of present embodiment is with embodiment one.
Embodiment three
Present embodiment is an a kind of piano hammerhead automatic drilling system, comprising: one first piano hammerhead automatic drilling machine, one second piano hammerhead automatic drilling machine and a multi-angle piano hammerhead automatic drilling machine.
Multi-angle piano hammerhead automatic drilling machine is used to process the middle pitch hammerhead, and structure is said with embodiment one, is used to process 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 the 31st to No. 36 hammerhead, hole be tilted to the left 16 the degree, the 37th to No. 42 hammerhead, the hole be tilted to the left 12 the degree, the 43rd to No. 48 hammerhead, the hole be tilted to the left 8 the degree, the 49th to No. 54 hammerhead, the hole be tilted to the left 4 the degree, the 55th to No. 60 hammerhead, the hole be tilted to the left 1 the degree.Under the effect of discharging mechanism, the hammerhead after the processing also can be arranged in order automatically.
The first piano hammerhead automatic drilling machine is exclusively used in processing bass hammerhead; Structure is used to process 30 bass hammerheads, in the visual angle that Fig. 2 chooses with the string mallet automatic drilling machine among the embodiment two; Boring direction to the right; In the visual angle that Fig. 3 chooses, feeding mechanism is positioned at the below of feed direction, and discharging mechanism is positioned at the top of feed direction.The the 1st to No. 30 hammerhead, hole be tilted to the right 19 the degree 30 minutes, be fixed angle.
The second piano hammerhead automatic drilling machine is exclusively used in processing high pitch hammerhead; Structure is used to process 28 high pitch hammerheads, in the visual angle that Fig. 2 chooses with the string mallet automatic drilling machine among the embodiment two; Boring direction is placed in the middle; In the visual angle that Fig. 3 chooses, feeding mechanism is positioned at the below of feed direction, and discharging mechanism is positioned at the top of feed direction.The the 61st to No. 88 hammerhead, Kong Fei is obliquely installed, and is fixed angle.
The not mentioned part of present embodiment is with embodiment one and embodiment two.

Claims (10)

1. piano hammerhead automatic drilling machine; Comprise: the borehole drill construction with drill bit is holed on workpiece is characterized in that: it also comprises: the feeding mechanism of make feed mechanism that workpiece moves on the linear feeding direction, the workpiece before will hole being sent into feed mechanism successively, the workpiece after will holing see the discharging mechanism of feed mechanism successively off, when holing with the clamp mechanism and the frame of workpiece clamping; Along feed direction, feed mechanism, feeding mechanism, discharging mechanism, clamp mechanism and borehole drill construction are successively set on the 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.
2. according to the described piano hammerhead of claim 1 automatic drilling machine, it is characterized in that: said feeding mechanism comprises: feed well, feed well seat, charging pushing block, hold-down mechanism and only expect mechanism; Feed well is installed on the frame through the 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; A plurality of workpiece are stacked and placed in the feed well along thickness direction; The charging pushing block is through the Way out workpiece pressing of hold-down mechanism to feed well; Only expect that mechanism comprises: only expect cylinder, and by the upper holder block of only expecting air cylinder driven; Only expect that cylinder advances or when moving back, upper holder block compresses or leave the workpiece of the outlet that is positioned at feed well.
3. according to the described piano hammerhead of claim 2 automatic drilling machine, it is characterized in that: said hold-down mechanism comprises: backguy, fixed pulley, movable pulley and weight; Behind the one termination charging pushing block of backguy, extend one section, walk around fixed pulley again, walk around movable pulley again and extend upward, the other end and frame relative fixed to extending below to the Way out of feed well; Weight is fixed on the movable pulley.
4. according to the described piano hammerhead of claim 1 automatic drilling machine, it is characterized in that: said feed mechanism comprises: have the material feeding seat that two-pass feeding cylinder, feeding cylinder seat, guide rail, guide runner, top are provided with the groove position that is used for place work piece; Feeding cylinder is fixed on the frame through the feeding cylinder seat; The floating junction and the material feeding seat of feeding cylinder are fixed; Material feeding seat moves back and forth on guide rail through guide runner; When feeding cylinder moved back, the groove position was over against feeding mechanism; When feeding cylinder was positioned at first travel position, the groove position was over against clamp mechanism; When feeding cylinder was positioned at second travel position, the groove position was over against discharging mechanism.
5. according to the described piano hammerhead of claim 4 automatic drilling machine, it is characterized in that: said feed mechanism also comprises: pressure head, straight pin, cylindrical compression spring and push rod; Pressure head is fixed on the material feeding seat through straight pin, comprises horizontal component and vertical part, and cylindrical compression spring is vertically between part and the material feeding seat; Push rod is positioned on the feeding cylinder seat; When feeding cylinder moved back, push rod withstood vertical component, the cylindrical compression spring compression, and pressure head rotates around straight pin, and workpiece is left in the end of horizontal component; When feeding cylinder advanced, vertical component left push rod, and cylindrical compression spring resets, and pressure head reverses around straight pin, the end workpiece pressing of horizontal component.
6. according to the described piano hammerhead of claim 1 automatic drilling machine, it is characterized in that: said discharging mechanism comprises: discharging cylinder, discharging cylinder block, discharging push pedal, blow tank and discharging rod; The discharging cylinder is fixed on the frame through the discharging cylinder block; Discharging rod is fixed on the side of discharging push pedal away from the discharging cylinder; The discharging cylinder moves back and forth along the discharging direction in a side drive discharging push pedal of feed direction; Blow tank is positioned at the opposite side of feed direction and over against the discharging push pedal, the height and the feed direction of blow tank are corresponding; When the discharging cylinder advanced, discharging rod moved to blow tank with workpiece.
7. according to the described piano hammerhead of claim 1 automatic drilling machine, it is characterized in that: said clamp mechanism comprises side pressure mechanism and last press mechanism; Side pressure mechanism comprises: compression spring, side guide, side pressure cylinder and side pressure cylinder block; The side pressure cylinder is fixed on the frame through the side pressure cylinder block; When the side pressure cylinder advances, promote side guide from the side direction clamping work pieces through the compression spring; When the side pressure cylinder moved back, side guide left workpiece; Last press mechanism comprises: go up air cylinder, go up the air cylinder seat, rotate pressure arm, cramp bar and seaming chuck; Last air cylinder is fixed on the frame through last air cylinder seat; The middle part of rotating pressure arm is connected with the cramp bar rotary type, and cramp bar is fixed on the frame; The one end below of rotating pressure arm is equipped with seaming chuck, and the other end is connected with the floating junction rotary type of last air cylinder; When last air cylinder advances, rotate pressure arm and on cramp bar, rotate, seaming chuck is downward, the top of workpiece pressing.
8. according to each described piano hammerhead automatic drilling machine in the claim 1 to 7, it is characterized in that: said borehole drill construction comprises pneumatic brill and borehole drill construction support; The pneumatic borehole drill construction support that drilled through is installed on the frame; During pneumatic creeping into, drill bit is over against workpiece.
9. multi-angle piano hammerhead automatic drilling machine, it is characterized in that: its structure is with each described piano hammerhead automatic drilling machine in the 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, servomotor drive ball screw and rotate and then drive movable panel along feed direction two side shiftings; The rotating shaft of turntable slide mechanism is arranged in bearing block, and the turntable slide mechanism rotates with respect to bearing block; The pneumatic turntable slide mechanism that drilled through is installed on the bearing block, and bearing block is installed on the cushion block through horizontal slip mechanism, and cushion block is installed on the frame.
10. piano hammerhead automatic drilling system is characterized in that: comprising: be used to process the bass hammerhead the first piano hammerhead automatic drilling machine, be used to process the high pitch hammerhead the second piano hammerhead automatic drilling machine, be used to process the multi-angle piano hammerhead automatic drilling machine of middle pitch hammerhead; The structure such as the claim 8 of the first piano hammerhead automatic drilling machine and the second piano hammerhead automatic drilling machine are said; The structure such as the claim 9 of multi-angle piano hammerhead automatic drilling machine are said; The pneumatic brill of the second piano hammerhead automatic drilling machine is arranged along vertical direction; The 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 variable angle of deflection opposite side.
CN201110430965.0A 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 Active CN102490212B (en)

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CN103264404A (en) * 2013-05-22 2013-08-28 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
CN103273543A (en) * 2013-06-14 2013-09-04 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
CN104385394A (en) * 2014-12-01 2015-03-04 潘义君 Automatic tenoning machine
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
CN113386210A (en) * 2021-07-05 2021-09-14 信阳职业技术学院 Drilling mechanism for piano manufacture

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CN103264404A (en) * 2013-05-22 2013-08-28 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
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CN104385394A (en) * 2014-12-01 2015-03-04 潘义君 Automatic tenoning machine
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
CN113386210A (en) * 2021-07-05 2021-09-14 信阳职业技术学院 Drilling mechanism for piano manufacture
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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