CN202770527U - Music box sound needle tuning vibration exciting and testing device - Google Patents
Music box sound needle tuning vibration exciting and testing device Download PDFInfo
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- CN202770527U CN202770527U CN 201220446392 CN201220446392U CN202770527U CN 202770527 U CN202770527 U CN 202770527U CN 201220446392 CN201220446392 CN 201220446392 CN 201220446392 U CN201220446392 U CN 201220446392U CN 202770527 U CN202770527 U CN 202770527U
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Abstract
The utility model discloses a music box sound needle tuning vibration exciting and testing device. The music box sound needle tuning vibration exciting and testing device is characterized in that a cylinder stator is located on a support and an vibration exciting arm and a sensing arm are connected onto the support; a vibration exciter, an adjusting screw II, one end of a reset spring and one end of a rocker arm spring are fixed on the vibration exciting arm, and the other end of the rocker arm spring is connected onto the support; a shock sensor, an adjusting screw I and the other end of the reset spring are fixed on the sensing arm; the vibration exciter is a pulse direct-current electromagnet and cooperates with a tested sound needle, and an excitation pulse current whose frequency is the same as the target sounding frequency of the tested sound needle is applied onto the pulse direct-current electromagnet; and the shock sensor is formed by sticking a totally-enclosed piezoelectric ceramic sheet onto a stainless steel substrate. In the sound needle electrolytic machining process, once the sound needle reaches the target sounding frequency, the resonance phenomenon occurs between the sound needle and the pulse direct-current electromagnet, the shock sensor is used to convert a detection signal into an electric signal and transmit the electric signal to an electrolyzer to stop the electrolytic process, the sound needle tuning operation can be completed only through an one-time machining and detecting operation, so the situation that the machining, detection, comparison and processing operations need to be performed on the sound needle repeatedly is changed completely, so that the working efficiency is improved by more than ten times, and the loss that the whole vibration plate is scrapped which is caused by multiple processing operations of the sound needle can be avoided.
Description
Technical field
The utility model relates to the device of a kind of musical box sound pin temperament, particularly a kind of musical box sound pin temperament exciting proving installation.
Background technology
Musical box sound acanthin amount is that the musical box quality is played a part key, is an important indicator, and the front need that therefore dispatch from the factory are done accurate debugging to the sound pin, and it is carried out repeated measurement and processing, just can make the sound pin reach standard-required.
Patent No. CN200810063512.7 " testing tone key of musical box with sensor and proving installation " is though disclose a kind of sensor and proving installation, and can finish at a station exciting and the test of key, but in sensor, be provided with two cover coils, suction moving winding with energising makes its vibration to key generation suction first, then by the vibration measuring coil key is tested.There are some drawbacks in the test, because the sound pin on the oscillating plate has long and short dividing, and corresponding basic, normal, high sound respectively, because the long easily vibration of the sound pin of bass area, only need pass to less exciting curent and just can make its vibration inhaling moving winding, the sound pin of treble is shorter, needs to pass to larger electric current to the suction moving winding and could produce enough large suction and make its vibration, therefore energy consumption is large, and minute processing trouble of length is arranged simultaneously.In the temperament process, remove unnecessary amount on the sound pin by electrolysis in addition, frequency is progressively reduced, but need just to reach the target criteria frequency through circulation process repeatedly, and each test is all carried out after the electrolysis of sound pin again, if controlling excessive this oscillating plate of surplus of improper electrolysis removal just scraps, so its inefficiency, scrappage is high, and processing cost is high.In fact it has still continued to use traditional tuner method, has both made first key vibration, and the vibration frequency of then testing key by test coil compares, analyzing and processing, if sound pin frequency continues cyclic process again greater than target frequency, until reach standard frequency.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of musical box sound pin temperament exciting proving installation is provided, this device can not only carry out the electrolysis temperament uninterruptedly, also thoroughly changing traditional temperament exciting test, to need repeatedly circulation process be disposablely to finish the exciting test and reach the target speaker frequency, not only power and energy saving but also anti-interference, and greatly increase work efficiency and the accuracy of temperament, this installs, and used Shock inductor is simple in structure, volume is little.
The technical scheme in the invention for solving the above technical problem is: musical box sound pin temperament exciting proving installation, comprise on the support fixed cylinder and be connected with the exciting arm, sensing arm, be fixed with vibrator on the described exciting arm, set screw second and back-moving spring; an end of priming lever spring; the other end of priming lever spring is connected on the support; be fixed with Shock inductor on the described sensing arm; the other end of set screw first and back-moving spring; described vibrator is the pulse direct current electromagnet and cooperated by the acoustic pin, pulse direct current electromagnet pass to by the identical excitatory pulse current of the required target speaker frequency of acoustic pin; Described Shock inductor forms by posting totally enclosed piezoelectric ceramic piece on the stainless steel substrate.
Compared with prior art, the utility model has the advantage of: this patent adopts the pulse electromagnetic exciting force of certain frequency and the processed sound pin of same frequency to produce resonance principle, namely carrying out electrolysis at the sound pin removes in the process of unnecessary amount, the natural frequency of sound pin gradually changes from big to small, in case the natural frequency of sound pin reaches the target speaker frequency, the pulse electromagnetic exciting force that at once will produce with the pulse direct current electromagnet of sound pin below resonates, Shock inductor is transformed into electric signal with the signal that detects and passes to electrolysis unit at once, just stop electrochemical machining at once, namely only need disposable processing to detect the temperament work that just can finish this root sound pin, do not need repeatedly processed sound pin to be carried out reprocessabilty, detect, contrast, process, increase work efficiency more than 10 times, also avoided because repeatedly processing the loss that makes sound pin frequency cause the full wafer oscillating plate to scrap less than target frequency.The pulse direct current electromagnet only needs the very little excitatory pulse current identical with sound pin target speaker frequency will produce resonance, greatly reduce energy consumption also anti-interference, pulse current causes that the accuracy of resonant frequency is very high simultaneously, error only between ± 2 hertz, therefore very high, the steady quality of the machining precision of processed sound pin.The exciting curent that used pulse direct current electromagnet passes through below every sound pin on the oscillating plate is all equally large, only is that frequency is different will be with consistent by the target audible frequency of acoustic pin, and therefore processing is simple, easily grasps operation.
Description of drawings
Fig. 1, structural representation of the present utility model (duty).
Fig. 2, structural representation of the present utility model (off working state).
The exploded view of Fig. 3, vibrator.
A is to enlarged diagram among Fig. 4, Fig. 1.
Fig. 5, Shock inductor structural representation.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
Support is screwed cylinder 14 on 1 bottom surface, a fixing end of priming lever spring 15 on the sidewall of support bottom surface, and the other end of priming lever spring is fixed on the end of exciting arm 13, and the other end of exciting arm 13 is screwed vibrator 4.
The upper end that sensing arm 10, exciting arm 13 are used respectively, lower rotary shaft 3,2 is connected to support 1, and rotate around upper and lower rotating shaft, also connect respectively set screw first, second 9,12 and an end and the other end of back-moving spring 11 on it, with screw pass respectively exciting arm 13, shell 4-1, excitation head 4-3 are fixed on vibrator 4 on the end of exciting arm 13.
The front end of stainless steel substrate 8-1 is cantilever end, there is an opening centre, and the width H of opening is the width of two sound pins, and the degree of depth is 2-4mm, the rear end is screwed on sensing arm 10, lower surface is close to anti-transition deformation plate 8-2, piezoelectric ceramic piece 8-3 successively, and piezoelectric ceramic piece coats the waterproof insulation film outward again, and piezoelectric ceramic piece is totally-enclosed, be not subjected to the etch of electrolytic solution to consist of Shock inductor 8, as shown in Figure 5, can anti-intense electromagnetic disturb, and the vibration of very sensitive induction vibration plate sound pin.
Excitation head 4-3 with tie down screw 17, nut and on have the damping block 16 of cascaded surface 16-1 two symmetries to connect into integral body, the upper surface that is installed in vibrator 4 consists of by the vibration isolator of acoustic pin 5-1, as shown in Figure 4.
The both sides of stainless steel substrate 8-1 front opening H on the Shock inductor 8, ride over respectively on the lower surface of each 2～5 sound pin about processed sound pin, hold up the sound pin and carry out vibration isolation, namely the width of damping block cascaded surface is the width of 2～5 sound pins, does not affect by the test of acoustic pin 5-1.
The width of excitation head 4-3 is that the width of two sound pins matches with the width of stainless steel substrate 8-1 front opening H.
During work, the pulse direct current electromagnet is positioned over S place, 5 acoustic pin belows of processed oscillating plate, S is 0.4～0.6 millimeter, at this moment cylinder 14 falls, set screw second 12 is withstood limited block 18 fixing on the cylinder 14, as shown in Figure 1, in electrolysis sound pin tuner process, the pulse direct current electromagnet pass to by the identical excitatory pulse current of acoustic pin target speaker frequency, when its frequency of sound pin of having removed certain surplus diminishes gradually, until its target speaker frequency is when identical with excitatory pulse current frequency, produced electromagentic resonance by acoustic pin and pulse direct current electromagnet, the amplitude of being shaken by the acoustic pin greatly increases, the electromagnetic eddy effect is obviously strengthened, make again in the time of electromagentic resonance on the damping block by the left side on acoustic pin next door, right sound pin vibration is also along with reinforcement, piezoelectric ceramic piece 8-3 changes into electric signal with vibration signal and carries out comparative analysis and process, offer an explanation out resonance sound pin and reached the target speaker frequency, so just stop electrolytic process, finish electrochemical machining and the test of this sound pin, then cylinder 14 jack-up, set screw second breaks away from limited block 18, break away from processing stations, as shown in Figure 2, oscillating plate 5 is transferred to next station, carry out the temperament processing of another sound pin, so constantly repeat, carry out uninterruptedly electrolysis temperament test.
Claims (6)
1. musical box sound pin temperament exciting proving installation, it is characterized in that comprising the upper fixed cylinder (14) of support (1) and be connected with exciting arm (13), sensing arm (10), be fixed with vibrator (4) on the described exciting arm (13), set screw second (12) and back-moving spring (11); an end of priming lever spring (15); the other end of priming lever spring (15) is connected on the support (1); be fixed with Shock inductor (8) on the described sensing arm (10); the other end of set screw first (9) and back-moving spring (11); described vibrator (4) is the pulse direct current electromagnet and cooperated by acoustic pin (5-1), pulse direct current electromagnet pass to by the identical excitatory pulse current of acoustic pin (5-1) target speaker frequency; Described Shock inductor (8) forms by posting totally enclosed piezoelectric ceramic piece (8-3) on the stainless steel substrate (8-1).
2. musical box sound pin temperament exciting proving installation according to claim 1, it is characterized in that described vibrator (4) is inserted in the coil former (4-2) of belt coil by iron core excitation head (4-3), be installed in the screening can (4-1), also coil is sealed in formation in the shell (4-1) at the shell aperture place with epoxy resin, pass respectively exciting arm (13), shell (4-1), excitation head (4-3) with screw, vibrator (4) is fixed on the end of exciting arm (13).
3. musical box sound pin temperament exciting proving installation according to claim 1 is characterized in that the upper end that described sensing arm (10), exciting arm (13) are used respectively, lower rotary shaft (3,2) is connected to support (1), and rotates around upper and lower rotating shaft.
4. musical box sound pin temperament exciting proving installation according to claim 1, the front end that it is characterized in that the stainless steel substrate (8-1) on the described Shock inductor (8) is cantilever end, there is an opening centre, the width H of opening is the width of two sound pins, the degree of depth is 2～4mm, the rear end is screwed on sensing arm (10), and the lower surface of stainless steel substrate is close to anti-excessive deformation plate (8-2), piezoelectric ceramic piece (8-3) successively, and piezoelectric ceramic piece coats the waterproof insulation film outward again.
5. according to claim 1 or 4 described musical box sound pin temperament exciting proving installations, the width that it is characterized in that the excitation head (4-3) on the described vibrator (4) is that the width of two sound pins matches with the width of stainless steel substrate (8-1) front opening H.
6. musical box sound pin temperament exciting proving installation according to claim 2, it is characterized in that described excitation head (4-3) with tie down screw (17), nut and on have the damping block (16) of cascaded surface (16-1) two symmetries to connect into integral body, the upper surface that is installed in vibrator (4) consists of by the vibration isolator of acoustic pin (5-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220446392 CN202770527U (en) | 2012-09-04 | 2012-09-04 | Music box sound needle tuning vibration exciting and testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220446392 CN202770527U (en) | 2012-09-04 | 2012-09-04 | Music box sound needle tuning vibration exciting and testing device |
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| Publication Number | Publication Date |
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| CN202770527U true CN202770527U (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220446392 Expired - Lifetime CN202770527U (en) | 2012-09-04 | 2012-09-04 | Music box sound needle tuning vibration exciting and testing device |
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| CN (1) | CN202770527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829856A (en) * | 2012-09-04 | 2012-12-19 | 王正尧 | Vibration-excitation testing device for sound needle tuning of music box |
-
2012
- 2012-09-04 CN CN 201220446392 patent/CN202770527U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829856A (en) * | 2012-09-04 | 2012-12-19 | 王正尧 | Vibration-excitation testing device for sound needle tuning of music box |
| CN102829856B (en) * | 2012-09-04 | 2014-01-29 | 王正尧 | Vibration-excitation testing device for sound needle tuning of music box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130306 Effective date of abandoning: 20140129 |
|
| RGAV | Abandon patent right to avoid regrant |