CN115542001A - A test machine for test of fender key conducting resin resistance - Google Patents

Abstract

The invention discloses a testing machine for testing the resistance of conductive adhesive of keys of an electric piano, and particularly relates to the technical field of conductive adhesive testing.

Description

A test machine for test of fender key conducting resin resistance

Technical Field

The invention relates to the technical field of conductive adhesive testing, in particular to a testing machine for testing the resistance of conductive adhesive of an electric piano key.

Background

The digital piano has more special functions of 'digital' than the traditional mechanical piano, and in China, the digital piano is also called as 'electric piano'. The digital piano replaces the analog technology with the digital technology (pulse code modulation technology), so that the vivid simulation of the traditional piano is realized, and the conductive adhesive is required to be used for conducting connection in the use process of the digital piano keyboard, so that a testing machine is required to be used for detecting whether the conductive adhesive is in a composite resistance standard or not.

Patent application publication No. CN210626565U discloses a conductive adhesive resistance testing device, which comprises a base, a telescopic arm and a horizontal telescopic rod, wherein the telescopic arm comprises an inner tube, an electric push rod and an outer tube, the horizontal telescopic rod is arranged on the outer tube, a circuit board is also arranged on the horizontal telescopic rod, the circuit board comprises a pressure sensor and a resistance testing block, a resistance tester is connected onto the circuit board, and a spring is sleeved on the inner tube; the utility model has the advantages that: set up horizontal telescoping rod on the outer tube of flexible arm, because the outer tube can stretch out and draw back along the inner tube outside under electric putter's effect, consequently horizontal telescoping rod can be along with the outer tube height in the vertical side of synchronous adjustment horizontal telescoping rod, in addition, the regulatory function that horizontal telescoping rod itself has makes horizontal telescoping rod adjust at the ascending length of horizontal direction to circuit board on the messenger horizontal telescoping rod is in the face of the product that different measurement height is low or length differs and convenient.

Through retrieving above-mentioned patent, can only carry out the test one by one to a conducting resin when carrying out resistance detection, like this at the test procedure, can't reach synchronous batch detection to the key conducting resin of different models, reduced detection efficiency by a wide margin.

Disclosure of Invention

In order to overcome the above defects in the prior art, embodiments of the present invention provide a testing machine for testing a resistance value of an electric piano key conductive adhesive, so as to solve the problem that only one conductive adhesive can be tested one by one during resistance detection, so that synchronous batch detection cannot be achieved for different types of key conductive adhesives during a test process, and detection efficiency is greatly reduced.

In order to achieve the purpose, the invention provides the following technical scheme: a testing machine for testing the resistance of conductive adhesive of keys of an electric piano comprises a testing machine body, wherein a testing circuit board is arranged in the testing machine body, the input end of the testing circuit board is electrically connected with a testing assembly, and the output end of the testing circuit board is electrically connected with a plurality of display screens for displaying the resistance;

the test assembly is including establishing the multiple spot position test contact plate at the test circuit board output, and the surface contact at the multiple spot position test contact plate has the key conducting resin, and the key conducting resin's upper surface is equipped with the extension board that pushes down that is used for pushing down, the top fixedly connected with who pushes down the extension board pushes down the pillar, all articulates in the both sides of pushing down the pillar has articulated slat, and articulated slat 7 one side is equipped with spill articulated support, and it has the articulated handle that pushes down that is used for the rotatory articulated at the inner wall of spill articulated support.

In a preferred embodiment, the pressing support plate is fixedly connected with the pressing support column, the cross-sectional shape of the bottom end of the pressing support column is rectangular, the key conductive adhesive is detachably connected with the multi-point testing contact plate, a group of metal sheets are symmetrically arranged on the surface of the multi-point testing contact plate, and the metal sheets are electrically connected with the testing circuit board.

In a preferred embodiment, an inclined positioning support plate is installed on one side of the display screen, the inclined positioning support plate is rotatably connected with the test machine body, the plurality of display screens are arranged in a four-by-four manner, two guide support shaft columns are arranged in the pressing support plate and located on one side of the pressing support plate, the guide support shaft columns are movably connected with the pressing support plate, a button for starting and stopping equipment is installed on one side of the test machine body, and the button is electrically connected with the test circuit board.

In a preferred embodiment, a guide frame is arranged on the upper surface of the multi-point testing contact plate and at a position outside the conductive adhesive of the key, a positioning assembly is embedded in one side of the guide frame and installed, the positioning assembly includes a plurality of gap insertion strips which are embedded in one side of the guide frame and sequentially arranged from left to right, a pushing support plate used for transverse pushing is fixed on one side of each gap insertion strip, a group of pushing cylinders fixedly installed on the surface of the body are symmetrically arranged at one end of each pushing support plate, a collar block is symmetrically and fixedly connected to the bottom of one end of each pushing support plate, a supporting shaft rod is sleeved on each collar block in a sliding mode, and the supporting shaft rod is fixedly connected to the telescopic end of each pushing cylinder.

In a preferred embodiment, two scale rulers are arranged on one side of the downward pressing support plate, a fastening bolt and a limiting support spiral ring are mounted on one side of each scale ruler, one end of the fastening bolt penetrates through the outer wall of the limiting support spiral ring and extends to the inside of the limiting support spiral ring, a threaded rotating rod is mounted on the inner wall of the limiting support spiral ring in a threaded mode, the top end of the threaded rotating rod penetrates through the bottom end of the downward pressing support plate and extends to the upper portion of the downward pressing support plate, and the fastening bolt is in threaded connection with the limiting support spiral ring.

The invention has the technical effects and advantages that:

1. according to the invention, the hinged pressing handle drives the two hinged battens to move downwards, the hinged battens drive the bottom position of the pressing support column to press downwards, the pressing support column drives the pressing support plate to move downwards along the outer walls of the two guide support shaft columns and the outer walls of the two threaded rotating rods, the pressing support plate can press the key conductive adhesive downwards, and the plurality of display screens can display the resistance value data of each keyboard conductive adhesive, so that batch detection can be synchronously carried out on the plurality of key conductive adhesives, synchronous detection operation is achieved, the detection efficiency is higher, and the speed is higher;

2. according to the invention, the positioning assembly is adopted to enable the conductive rubber of the keys to enter along the inner part of the guide frame for marginalization positioning, the pushing cylinder drives the pushing support plate to move, the pushing support plate drives the gap insertion strip to move, and the gap insertion strip is inserted into gaps among the raised keyboards of the conductive rubber of the keys, so that transverse positioning support is carried out on gaps of raised points of the keyboards, deformation and dislocation of the conductive rubber of the keys during pressing are avoided, the test accuracy is higher, and the stability is better;

3. according to the invention, the limit support spiral ring can be rotated through the scale marks on the scale ruler, the limit support spiral ring can perform threaded rotary movement on the threaded rotating rod, the fastening bolt can perform limit fixing operation on the limit support spiral ring, the upper surface of the limit support spiral ring can perform a limit function on the bottom of the pressing support plate, the pressing support plate cannot move downwards after moving downwards to a specified depth, accurate pressing is performed, the pressing position is the same, the pressure value is the same during each test, and the test is accurately performed; the device can synchronously carry out batch detection on the conductive adhesives of the keys, achieves synchronous detection operation, and further can effectively improve the testing efficiency and the testing accuracy.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a rear view of the present invention;

FIG. 4 is a schematic view of a connection structure between a tester body and a testing component according to the present invention;

fig. 5 is a schematic view of a connection structure among the push cylinder, the push support plate, the gap insertion strip, the support shaft rod and the collar block.

Fig. 6 is an enlarged schematic view of a portion a in fig. 3 according to the present invention.

Fig. 7 is a first schematic diagram illustrating the test operation principle of the present invention.

Fig. 8 is a schematic diagram of the test operation principle of the present invention.

The reference signs are: 1. a tester body; 2. testing the circuit board; 3. a multipoint test contact plate; 31. a metal sheet; 4. conductive glue for the keys; 5. pressing the support plate; 6. pressing the support column; 7. hinging the lath; 8. a concave hinged support; 9. a hinged push-down handle; 10. a display screen; 11. inclining the positioning support plate; 12. a guide fulcrum post; 13. a button; 14. a guide frame; 15. a gap insertion strip; 16. pushing the support plate; 17. a push cylinder; 18. a collar block; 19. a support shaft; 20. a threaded rotating rod; 21. a limiting support spiral ring; 22. fastening a bolt; 23. and (4) a graduated scale.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The testing machine for testing the resistance of the conductive adhesive of the piano keys comprises a testing machine body 1, wherein a testing circuit board 2 is installed inside the testing machine body 1, and the input end of the testing circuit board 2 is electrically connected with a testing component and the output end of the testing circuit board 2 is electrically connected with a plurality of display screens 10 for displaying the resistance;

the test assembly is including establishing the multiple spot position test contact plate 3 at 2 outputs of test circuit board, the surface contact at multiple spot position test contact plate 3 has key conducting resin 4, and the upper surface of key conducting resin 4 is equipped with the extension board 5 that pushes down that is used for pushing down, the top fixedly connected with of extension board 5 pushes down pillar 6, it has articulated slat 7 all to articulate in the both sides of pillar 6 down, articulated slat 7 one side is equipped with spill articulated bracket 8, it has articulated handle 9 that pushes down that is used for rotatory to articulate at the inner wall of spill articulated bracket 8.

In some embodiments, as shown in fig. 1 to 4, the pressing support plate 5 is fixedly connected to the pressing support column 6, and the cross section of the bottom end of the pressing support column 6 is set to be rectangular, so that the hinged slat 7 drives the bottom position of the pressing support column 6 to press downward, thereby achieving a better pressing effect of the rectangular bottom surface of the pressing support column 6, the key conductive adhesive 4 is detachably connected to the multi-point test contact plate 3, a set of metal sheets 31 is symmetrically arranged on the surface of the multi-point test contact plate 3, the metal sheets 31 are electrically connected to the test circuit board 2, the key conductive adhesive 4 is connected to the two metal sheets 31 by pressing the key conductive adhesive 4 through the pressing support plate 5, further the internal circuit of the test circuit board 2 is conducted through the conductive adhesive 4, thereby achieving resistance measurement of the test circuit board 2 on the key conductive adhesive 4, the key conductive adhesive 4 can be directly placed on the upper surface of the multi-point test contact plate 3 for testing, after the testing, the conductive adhesive 4 can be pulled upward, and the key conductive adhesive 4 can be separated from the multi-point test contact plate 3.

In some embodiments, as shown in fig. 1, an inclined positioning support plate 11 is installed on one side of a display screen 10, the inclined positioning support plate 11 is rotatably connected with the testing machine body 1, a plurality of display screens 10 are arranged in a four-by-four manner, the display screen 10 is obliquely supported by the plurality of inclined positioning support plates 11, so that a person can conveniently check and observe the display screen, the display screen presents multi-point display in which four-by-four manner is achieved, and display data are conveniently read and recorded by the person, two guide support shaft columns 12 are arranged inside a pressing support plate 5 and at one side of a pressing support 6, the guide support shaft columns 12 are movably connected with the pressing support plate 5, so that the pressing support plate 5 can conveniently read and record the data along the outer walls of the two guide support shaft columns 12, the stable guiding and downward moving effect is achieved, a button 13 for starting and stopping the device is installed on one side of the testing machine body 1, the button 13 is electrically connected with the testing circuit board 2, so that the button 13 is pressed to electrify the testing circuit board 2 and the plurality of display screens 10 are electrified, and the testing circuit board 2 can be closed in a later stage.

In some embodiments, as shown in fig. 4 to 5, a guide frame 14 is disposed on the upper surface of the multi-point testing contact plate 3 and at a position outside the conductive adhesive 4 of the key, so that the conductive adhesive 4 of the key can be guided to enter along the inside of the guide frame 14, a positioning assembly is embedded in one side of the guide frame 14, the positioning assembly includes a plurality of gap insertion strips 15 sequentially disposed from left to right on one side of the guide frame 14, a push support plate 16 for lateral pushing is fixed on one side of the gap insertion strips 15, and a set of push cylinders 17 fixedly mounted on the surface of the testing machine body 1 are symmetrically disposed at one end of the push support plate 16, a collar block 18 is symmetrically and fixedly connected to the bottom of one end of the push support plate 16, a support shaft rod 19 is slidably sleeved on the collar block 18, the support shaft rod 19 is fixedly connected to a telescopic end of the push cylinder 17, the push support plate 16 is driven to move by activating the push cylinder 17, the collar block 18 moves along the outer wall of the support shaft rod 19, and the push support plate 16 drives the gap insertion strips 15 to move, and the gap insertion strips 15 can be inserted into gaps between the conductive adhesive 4 to play a role in supporting, thereby preventing the conductive adhesive 4 from being loosened and further affecting the measurement of the resistance value of the key under pressure plate 5.

In some embodiments, as shown in fig. 3 to 6, two graduated scales 23 are disposed on one side of the pressing support plate 5, and a fastening bolt 22 and a limiting support screw ring 21 are mounted on one side of each graduated scale 23, one end of the fastening bolt 22 penetrates through an outer wall of the limiting support screw ring 21 and extends into the limiting support screw ring 21, a threaded rotating rod 20 is mounted on an inner wall of the limiting support screw ring 21 in a threaded manner, the top end of the threaded rotating rod penetrates through a bottom end of the pressing support plate 5 and extends to a position above the pressing support plate 5, the fastening bolt 22 is in threaded connection with the limiting support screw ring 21, through a scale mark on the graduated scale 23, the limiting support screw ring 21 is rotated to drive the fastening bolt 22 to rotate, the threaded rotating rod moves downward, when the upper surface of the limiting support screw ring 21 moves to a specified height on the graduated scale 23, the fastening bolt 22 can be rotated to perform an extrusion operation, it is ensured that the pressing support plate 5 cannot move downward after moving to the specified depth, and the pressing depth and the magnitude of the pressing force can be accurately controlled.

The working principle of the invention is as follows: during limiting support, the limiting support spiral ring 21 can be rotated through scale marks on the scale ruler 23, the limiting support spiral ring 21 drives the fastening bolt 22 to rotate, so that the limiting support spiral ring 21 can rotate in a threaded manner on the threaded rotating rod 20 and move downwards under the action of threads, so that when the upper surface of the limiting support spiral ring 21 moves upwards to a specified numerical height on the scale ruler 23, the fastening bolt 22 can be rotated, the fastening bolt 22 is extruded to the inner position of the limiting support spiral ring 21 along the outer wall of the limiting support spiral ring 21 under the action of the threads, and the outer wall of the threaded rotating rod 20 can be extruded to realize extrusion fixing operation, so that the upper surface of the limiting support spiral ring 21 can play a limiting role on the bottom of the pressing support plate 5, the pressing support plate 5 cannot move downwards after moving downwards to a specified depth, the accurate control of the pressing depth and the size of the pressing force can be realized, and excessive pressing cannot be easily caused during each test; when the key conductive adhesive 4 is positioned, the key conductive adhesive 4 can be guided along the inside of the guide frame 14, so that the bottom position of the key conductive adhesive 4 is attached to the upper surface position of the multi-point test contact plate 3, the key conductive adhesive 4 can be quickly positioned, the push cylinder 17 is started to drive the push support plate 16 to move, the push support plate 16 drives the collar block 18 to move along the outer wall of the support shaft rod 19, and the push support plate 16 drives the gap insertion strip 15 to move, so that the gap insertion strip 15 can be inserted into gaps among all the raised keyboards of the key conductive adhesive 4, and the key conductive adhesive 4 is prevented from deforming and deviating when pressed down, contact dislocation is caused, and measurement data is prevented from being influenced; when the multipoint positions are pressed downwards, the button 13 can be pressed to electrify the test circuit board 2 and the display screens 10 can be electrified, the hinged pressing handle 9 can rotate downwards, the hinged pressing handle 9 rotates downwards in the concave hinged support 8, meanwhile, the hinged pressing handle 9 drives the two hinged strips 7 to move downwards, the hinged strips 7 drive the bottom positions of the pressing pillars 6 to press downwards, the pressing pillars 6 drive the pressing strips 5 to move downwards along the outer walls of the two guide fulcrum columns 12 and the outer walls of the two threaded rotating rods 20, the pressing strips 5 can press the conductive adhesive 4 downwards, the key conductive adhesive 4 is tightly attached to the multipoint position test contact board 3, the test circuit board 2 can be electrified to operate, the resistance values of the key conductive adhesive 4 measured on the multipoint position test contact board 3 are input into the test circuit board 2, the key conductive adhesive 4 is output into the display screens 10 through the test circuit board 2, the display screens 10 can display the resistance data of each key conductive adhesive 4, the display screens 10 can be directly viewed, the display screens 10 can be conveniently positioned by a plurality of inclined supporting strips 11, and people can observe the inclined positions of the inclined supporting strips.

The details which are not described in the specification belong to the prior art which is well known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited and can be determined by using conventional equipment.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiment of the invention, only the structures related to the disclosed embodiment are related, other structures can refer to common design, and the same embodiment and different embodiments of the invention can be combined mutually under the condition of no conflict;

and finally: the present invention is not limited to the above preferred embodiments, but rather, any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a test machine for test of fender key conducting resin resistance, includes test machine body (1), the internally mounted of test machine body (1) has test circuit board (2), its characterized in that: the input end of the test circuit board (2) is electrically connected with a test component, and the output end of the test circuit board is electrically connected with a plurality of display screens (10) for displaying resistance values;

the test assembly is including establishing multi-point position test contact board (3) at test circuit board (2) output, and the upper surface contact of multi-point position test contact board (3) has key conducting resin (4), and the upper surface of key conducting resin (4) is equipped with and is used for pushing down extension board (5), the top fixedly connected with who pushes down extension board (5) pushes down pillar (6), and the both sides of pushing down pillar (6) all articulate there is articulated slat (7), and articulated slat (7) top one side is equipped with spill articulated support (8), and the inner wall of spill articulated support (8) articulates there is articulated handle (9) that pushes down that is used for the rotation.

2. The testing machine for the resistance value test of the piano key conductive adhesive according to claim 1, wherein: the pressing support plate (5) is fixedly connected with the pressing support column (6), and the cross section of the bottom end of the pressing support column (6) is rectangular.

3. The testing machine for the resistance value test of the piano key conductive adhesive according to claim 1, wherein: the key conducting resin (4) is detachably connected with the multi-point testing contact plate (3), a group of metal sheets (31) are symmetrically arranged on the surface of the multi-point testing contact plate (3), and the metal sheets (31) are electrically connected with the testing circuit board (2).

4. The testing machine for the resistance value test of the piano key conductive adhesive according to claim 1, wherein: an inclined positioning support plate (11) is installed on one side of each display screen (10), the inclined positioning support plates (11) are rotatably connected with the test machine body (1), and the plurality of display screens (10) are arranged in a four-by-four manner.

5. The testing machine for the resistance value test of the piano key conductive adhesive according to claim 1, wherein: two guide supporting shaft columns (12) are arranged in the pressing supporting plate (5) and at one side of the pressing supporting column (6), and the guide supporting shaft columns (12) are movably connected with the pressing supporting plate (5).

6. The testing machine for the resistance test of the conductive adhesive of the electric piano key according to claim 1, characterized in that: a button (13) for starting and stopping equipment is installed on one side of the testing machine body (1), and the button (13) is electrically connected with the testing circuit board (2).

7. The testing machine for the resistance value test of the piano key conductive adhesive according to claim 1, wherein: the key conductive adhesive testing machine is characterized in that a guide frame (14) is arranged on the upper surface of the multipoint position testing contact plate (3) and located at the outer position of the key conductive adhesive (4), a positioning assembly is embedded into one side of the guide frame (14), the positioning assembly comprises a plurality of gap insertion strips (15) which are embedded into one side of the guide frame (14) and sequentially arranged from left to right, a pushing support plate (16) used for transverse pushing is fixed to one side of each gap insertion strip (15), a group of pushing cylinders (17) fixedly installed on the surface of the testing machine body (1) is symmetrically arranged at one end of each pushing support plate (16), a collar block (18) is symmetrically and fixedly connected to the bottom of one end of each pushing support plate (16), a supporting shaft rod (19) is sleeved on the collar block (18) in a sliding mode, and the supporting shaft rod (19) is fixedly connected to the telescopic end of each pushing cylinder (17).

8. The testing machine for the resistance value test of electric piano keys according to any one of claims 1 to 7, wherein: one side of the downward pressing support plate (5) is provided with two scale scales (23), one side of each scale (23) is provided with a fastening bolt (22) and a limiting support spiral ring (21), one end of each fastening bolt (22) penetrates through the limiting support spiral ring (21) and extends to the inside of the limiting support spiral ring (21), and a threaded rotating rod (20) is installed on the inner wall of the limiting support spiral ring (21) in a threaded mode, wherein the top end of the threaded rotating rod penetrates through the bottom end of the downward pressing support plate (5) and extends to the upper portion of the downward pressing support plate (5).

9. The testing machine for the resistance value test of the piano key conductive adhesive according to claim 8, wherein: the fastening bolt (22) is in threaded connection with the limiting support spiral ring (21).

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