CN209979108U - Guitar string button torque tester - Google Patents

Abstract

The utility model provides a simple structure, low in production cost can improve guitar knob moment of torsion efficiency by a wide margin, improve guitar knob moment of torsion detection rate of accuracy, reduce cost's guitar knob moment of torsion tester by a wide margin, including support, rotatory torque sensor, signalling device, be used for with the fastener of knob looks block, rotatory torque sensor's casing fixed set up in the support, the fastener set up in the left end portion of rotatory torque sensor's axis of rotation, rotatory torque sensor and signalling device signal connection, be provided with on the support and be used for the drive rotatory torque sensor's an axis of rotation pivoted drive arrangement.

Description

Guitar string button torque tester

Technical Field

The utility model relates to a guitar production machinery technical field, in particular to guitar string button torque tester.

Background

The guitar string button is through adjusting the device that the guitar string rate of tension reached the guitar tuning, as shown in fig. 4, the guitar string button includes casing 2 ', column spinner 2', string button 3 ', column spinner 2' is worn to locate the casing 2 'with string button 3' rotation, the fixed turbine that is provided with on the column spinner 2 ', guitar string button fixedly connected with worm, worm and turbine meshing transmission, offer the trompil 21' that supplies the guitar string to pass on the column spinner 2 ', if too big the moment of torsion of string button 3', the customer experiences not well when using, it is difficult to finely tune the tension of guitar string accurately. After the guitar string button is produced and assembled, the torque of the string button 3 ' needs to be tested, the existing stage test is to feel the rotation torque resistance of the string button 3 ' by dazzling the string button 3 ' by workers, and the first step of the manual test method is that the subjective feeling deviation is large, the torque magnitude is judged subjectively by the workers, the standard is difficult to unify, and the product quality is difficult to guarantee; the second consumption of labor is large, the detection efficiency is low, and the cost is high; and the third step, the requirement on the clinker degree of workers is high, training is needed in the early stage, products are required to be regularly checked in the later stage to check whether the products are qualified, and the management cost is high.

SUMMERY OF THE UTILITY MODEL

Therefore, to foretell problem, the utility model provides a simple structure, low in production cost can improve guitar string button moment of torsion efficiency by a wide margin, improve guitar string button moment of torsion detection rate of accuracy, reduce cost's guitar string button moment of torsion tester by a wide margin.

In order to realize the technical problem, the utility model discloses the solution that takes is guitar knob torque tester, including support, rotatory torque sensor, signalling device, be used for with the fastener of knob looks block, rotatory torque sensor's casing fixed set up in the support, the fastener set up in the left end portion of rotatory torque sensor's axis of rotation, rotatory torque sensor and signalling device signal connection, be provided with on the support and be used for the drive rotatory torque sensor's axis of rotation pivoted drive arrangement.

The further improvement is that: the fastener is a fastener column, and a plurality of second clamping grooves for clamping the string buttons are formed in the right side of the left end face of the fastener column.

The further improvement is that: the support is a sliding frame, and the lower end part of the support is provided with a sliding groove matched with an external sliding rail.

The further improvement is that: the left side of support is provided with the perforation detection device who is used for detecting the trompil, perforation detection device with signal transmission device signal connection.

The further improvement is that: the perforation detection device comprises an infrared transmitter and an infrared signal receiver, and the infrared signal receiver is in signal connection with the signal sending device.

The further improvement is that: the left side of support is provided with the stand, can slide from top to bottom on the stand and be provided with the mount pad, perforation detection device set up in on the mount pad, be provided with positioner between stand and the mount pad.

The further improvement is that: a second sliding groove is formed in the vertical direction of the upright column, and the mounting seat can be arranged in the second sliding groove in a sliding mode.

The further improvement is that: the positioning device is a screw rod, a threaded hole is formed in the vertical direction of the upright column and used for the screw rod to penetrate through, the screw rod is arranged below the mounting seat, and the upper end face of the screw rod can be abutted to the mounting seat.

The further improvement is that: the first driving device is a stepping motor, a shell of the stepping motor is fixedly arranged on the support, and a driving shaft of the stepping motor is fixedly connected with a rotating shaft of the rotating torque sensor.

The further improvement is that: the signal sending device is a buzzer.

By adopting the technical scheme, the beneficial effects of the utility model are that: the machine detection is adopted, the detected torque data is more accurate, the standardized detection of the product is convenient to realize, and the quality control of the product is better; the detection efficiency of the torque of the guitar string button is improved, and the detection speed is high; the opening of the rotary column is detected while the torque of the guitar string button is detected, so that the detection efficiency of the product is further improved, and the yield is improved; the requirement on labor is reduced, and the manufacturing cost is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a guitar string button torque tester according to an embodiment of the present invention.

Fig. 2 is a view of the engaging member a of fig. 1 according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a perforation detection apparatus according to an embodiment of the present invention.

Fig. 4 is a schematic view of a prior art guitar string button.

Fig. 5 is a schematic structural view of an engaging member according to a second embodiment of the present invention.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

The first embodiment is as follows:

referring to fig. 1 to 3 the embodiment of the present invention discloses a guitar string button torque tester, including sliding frame 21, singlechip (not shown in the figure), bee calling organ (not shown in the figure), in order to make sliding frame 21 slide more steadily on outside frame 1, outside frame 1 is gone up to extend along the left and right directions and is provided with two forked tail travelers 26, sliding frame 21's lower tip seted up in forked tail traveller 26 matched with forked tail spout, be provided with rotatory torque sensor 21 on sliding frame 21, rotatory torque sensor 21's casing fixed set up in sliding frame 21, rotatory torque sensor 21's axis of rotation left end portion is fixed and is provided with pivot 28, the left end portion of pivot 28 is fixed and is provided with pivot 28A locking post 24, the left end of the locking post 24 faces to The right side is provided with two second clamping grooves for clamping the string buttons241, two second card slots 241 are perpendicular to each other, and two second card slots241's nodical be the mid point of twice second draw-in groove 241, the fixed step motor 23 that is provided with on the frame 21 that slides, step motor 23's casing fixed set up in the frame 21 slides, step motor 23's drive shaft and the axis of rotation right-hand member fixed connection of rotatory torque sensor 21, rotatory torque sensor 21 with the signal input part signal connection of singlechip, the signal output part and the buzzer signal connection of singlechip, write in required allowable maximum torque value in advance at the singlechip, rotatory torque sensor 21 sends the torque value that detects at present for the singlechip, compare by the singlechip, if torque value is greater than allowable maximum torque value, send signal for the buzzer, inform operating personnel that current guitar string button is the defective products.

In order to further detect whether the specification of the guitar string button is correct and whether the opening is accurately formed on the rotary column, a perforation detection device for detecting the opening is arranged on the left side of the sliding frame 21, the perforation detection device comprises an infrared emitter 71 and an infrared signal receiver 72, the infrared signal receiver 72 is in signal connection with the signal input end of the single chip microcomputer, the clamping column 24 drives the string button to rotate, the rotary column rotates, the infrared emitter 71 emits infrared rays, the infrared rays irradiate on the rotary column to be emitted and reflected, the reflected infrared rays are received by the infrared signal receiver 72, if the opening on the rotary column is accurate, the infrared rays penetrate through the opening at a certain moment, the infrared rays received by the infrared signal receiver 72 are periodically disconnected, if the opening is not formed on the rotary column, or the model of the guitar string button is incorrect, the infrared signal receiver 72 receives the infrared reflection for a long time or does not receive the infrared reflection, the single chip microcomputer judges according to the signal sent by the infrared signal receiver 72, and sends a signal to the buzzer to inform an operator if the rotating column is not provided with a hole or the model is incorrect.

In order to be suitable for different rotary column lengths and different trompil positions of the guitar string button model of different specifications, the fixed stand 73 that is provided with in outside frame 1, spout 731 has been seted up along the upper and lower direction to stand 73, infrared emitter 71 and infrared signal receiver 72 are fixed to be set up on mount pad 76, mount pad 76 can slide from top to bottom and set up in spout 731, set up threaded hole on the stand 73, threaded hole wears to be equipped with screw rod 75, screw rod 75's axial sets up along the vertical direction, screw rod 75 set up in mount pad 76's below, screw rod 75's up end can be inconsistent with mount pad 76.

The utility model discloses guitar string button torque tester controls the operation of whole board through the singlechip, writes into the maximum torque value of allowwing in advance at the singlechip, tests the moment of torsion of string button through rotatory torque sensor 21, judges whether the moment of torsion meets the requirements, and efficiency of software testing is high, and the measuring accuracy is accurate, has unified standard, has improved the yields, accords with the requirement of standardized production; the stepping motor 23 acts, the rotating torque sensor 21 detects the torque of the string button, signals are sent to the single chip microcomputer for comparison, the single chip microcomputer obtains a detection result after comparison, and if the current detected torque of the string button is larger than a preset allowed maximum torque value, the single chip microcomputer sends signals to the buzzer, and the buzzer works.

Based on the above scheme, in actual operation, first drive arrangement also can be the rotating electrical machines, second draw-in groove 241 also can be for three or four, the support also can be handheld, can hand guitar string button torque tester carry out the torque test to the guitar string button, stand 73 can be fixed to be set up on handheld, signal transmission device also can be LED lamp, loudspeaker, perforation detection device also can include laser emitter and laser receiver.

The embodiment of the utility model provides a brake motor, singlechip, rotatory torque sensor, infrared emitter, infrared ray signal receiver are current product, can follow the most direct purchase on the market, so do not give unnecessary details here.

Example two:

based on the aforesaid scheme, refer to fig. 5 the utility model discloses guitar string button torque tester's fastener can also include second fastener 4 ", the left end portion of second fastener 4" articulates through the round pin axle has second clamping roller 5 ", two be provided with third cylinder 6" between the clamping roller, the cylinder body and the telescopic link of third cylinder 6 "articulate respectively in two second clamping roller 5".

Modifications and variations of the present invention are within the scope of the claims and are not limited by the disclosure of the embodiments.

Claims (10)

1. Guitar string button torque tester, its characterized in that: the clamping piece is used for being clamped with a string button, a shell of the rotary torque sensor is fixedly arranged on the support, the clamping piece is arranged at the left end portion of a rotating shaft of the rotary torque sensor, the rotary torque sensor is in signal connection with the signal sending device, and a first driving device used for driving the rotating shaft of the rotary torque sensor to rotate is arranged on the support.

2. The guitar string button torque tester as claimed in claim 1, characterized in that: the fastener is a fastener column, and a plurality of second clamping grooves for clamping the string buttons are formed in the right side of the left end face of the fastener column.

3. The guitar string button torque tester as claimed in claim 1, characterized in that: the support is a sliding frame, and the lower end part of the support is provided with a sliding groove matched with an external sliding rail.

4. The guitar string button torque tester as claimed in claim 1, characterized in that: the left side of support is provided with the perforation detection device who is used for detecting the trompil, perforation detection device with signal transmission device signal connection.

5. The guitar string button torque tester as claimed in claim 4, characterized in that: the perforation detection device comprises an infrared transmitter and an infrared signal receiver, and the infrared signal receiver is in signal connection with the signal sending device.

6. The guitar string button torque tester as claimed in claim 4, characterized in that: the left side of support is provided with the stand, can slide from top to bottom on the stand and be provided with the mount pad, perforation detection device set up in on the mount pad, be provided with positioner between stand and the mount pad.

7. The guitar string button torque tester as claimed in claim 6, characterized in that: a second sliding groove is formed in the vertical direction of the upright column, and the mounting seat can be arranged in the second sliding groove in a sliding mode.

8. The guitar string button torque tester as claimed in claim 6, characterized in that: the positioning device is a screw rod, a threaded hole is formed in the vertical direction of the upright column and used for the screw rod to penetrate through, the screw rod is arranged below the mounting seat, and the upper end face of the screw rod can be abutted to the mounting seat.

9. The guitar string button torque tester as claimed in claim 1, characterized in that: the first driving device is a stepping motor, a shell of the stepping motor is fixedly arranged on the support, and a driving shaft of the stepping motor is fixedly connected with a rotating shaft of the rotating torque sensor.

10. The guitar string button torque tester as claimed in claim 1, characterized in that: the signal sending device is a buzzer.

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