A motor load noise testing device

Abstract

The present invention aims to provide a test device for motor load noise, which has a simple and compact structure and can efficiently fix a micro motor. The present invention includes a substrate, a mounting frame, a conduction module, a pressing head module, a clamping module and a testing module. The mounting frame is connected to an external fixed structure. The substrate is fixedly connected to the mounting frame. The conduction module, the pressing head module and the clamping module are all fixed on the substrate. The testing module is fixed to an external positioning mechanism and is arranged above the clamping module. The clamping module fixes the test motor on the substrate, and the pressing head module clamps the conduction part of the test motor to the conduction module. The present invention is applied to the technical field of motor load test devices.

Description

Technical Field

[0001] The present invention relates to the technical field of motor load testing equipment, and particularly to a motor load noise testing equipment. Background Art

[0002] With the wide application of micro motors and the improvement of the refined application degree of motors in different environmental conditions by system equipment, it is particularly important to provide different environmental conditions for micro motors, especially the noise characteristics of motors under different loads. Excessive noise easily affects the use experience, and thus the practicality of the motor is greatly reduced. In the existing motor load noise testing equipment, screws, magnetic absorption or pressing arm structures are often used to fix the motor, and these fixing methods are very time-consuming in use, resulting in waste of time and labor costs.

[0003] Chinese Patent with Publication No. CN209746096U, an improved load noise testing device, includes a workbench, a tooling structure and a load testing mechanism. During operation, the motor to be tested is installed on the tooling plate, and the motor limit block limits the movement of the motor. The dragging cylinder drags the tooling belt with the motor to the designated test position. The pressing mechanism composed of the first cylinder connecting block, the cylinder mounting block, the motor pressing plate and the downward pressing cylinder presses and fixes the motor. The rising cylinder contracts downward to drive the belt to press downward. The belt is hung on the motor and tightened. This utility model realizes the motor load effect through the cooperation of the belt and the cylinder to tighten. When the motor is fixed, it is pressed on the tooling plate by screws. During the testing and disassembly process, the locking screws need to be unscrewed and then the new test motor needs to be locked again, and the work process is complicated, affecting the efficiency of the testing process. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a motor load noise testing equipment with a simple and compact structure and capable of realizing efficient fixation of micro motors.

[0005] The technical solution adopted by the present invention is as follows: The present invention includes a substrate, a mounting frame, a conduction module, a pressing head module, a clamping module and a testing module. The mounting frame is connected to an external fixed structure, the substrate is fixedly connected to the mounting frame, the conduction module, the pressing head module and the clamping module are all fixed on the substrate, the testing module is fixed to an external positioning mechanism and arranged above the clamping module, the clamping module fixes the test motor on the substrate, and the pressing head module clamps the conduction part of the test motor to the conduction module.

[0006] Furthermore, the clamping module includes a fixed seat, a pressing plate, a buckle, a pressing spring, and a load member. The fixed seat is fixedly connected to the substrate. One end of the pressing plate is rotatably connected to the fixed seat. The buckle is movably connected to the end of the pressing plate away from the fixed seat. The pressing spring is arranged on the fixed seat. One end of the pressing spring is in pressing cooperation with the fixed seat, and the other end of the pressing spring is connected to the pressing plate. The load member is arranged on the pressing plate and connected to the output end of the test motor.

[0007] Furthermore, a plurality of pressing columns, positioning columns, and load limit blocks are provided on the pressing plate. The plurality of pressing columns are all floatingly connected to the lower surface of the pressing plate and are in pressing cooperation with the test motor. The substrate is provided with positioning holes, and the positioning columns are in guiding cooperation with the positioning holes. The load limit block is arranged on the upper surface of the pressing plate and is in limiting cooperation with the load member.

[0008] Furthermore, a buckle spring is arranged between the upper end of the buckle and the pressing plate. A buckling block matching the buckle is provided on the substrate. A buckle convex block is provided on the buckle, and a buckling groove adapted to the convex block is provided on the buckling block.

[0009] Furthermore, the indenter module includes an indenter positioning seat, an indenter spring, and a downward pressing fixing member. The indenter positioning seat is fixedly connected to the substrate. The downward pressing fixing member is rotatably connected to the indenter positioning seat. One end of the indenter spring is connected to the indenter positioning seat, and the other end of the indenter spring is in pressing cooperation with the downward pressing fixing member. A downward pressing convex block is provided at one end of the downward pressing fixing member, and the downward pressing convex block presses and cooperates the conduction member of the test motor with the conduction module.

[0010] Furthermore, a plurality of anti-slip lines are provided on the downward pressing fixing member, and a plurality of guiding holes are provided at the lower end of the indenter positioning seat. The plurality of guiding holes are in guiding connection with the substrate.

[0011] Furthermore, the conduction module includes a first conduction member, a second conduction member, and a conduction plate. Both the first conduction member and the second conduction member are electrically connected to the conduction plate. The first conduction member is connected to an external signal processing mechanism, and the second conduction member is electrically connected to the conduction member of the test motor.

[0012] Furthermore, the first conduction member is provided with a male head magnetic attraction group and a female head magnetic attraction group. The female head magnetic attraction group is electrically connected to the conduction plate. The male head magnetic attraction group is connected to the mounting rack, and the male head magnetic attraction group is conductively connected to the female head magnetic attraction group through a plurality of probes.

[0013] Further, the test module includes a fixing frame, an adjusting frame, a protruding rod, and a test piece. The fixing frame is fixedly connected to an external device. The adjusting frame is slidably connected to the fixing frame. The protruding rod is clamped and matched with the adjusting frame. A chuck is provided at one end of the protruding rod away from the adjusting frame. The test piece is clamped and matched with the chuck. The test piece is arranged above the clamping module.

[0014] Further, a plurality of protruding columns are provided on the substrate, and the plurality of protruding columns are respectively connected to the pressing head module and the clamping module in a guiding manner.

[0015] The beneficial effects of the present invention are as follows: Since the mounting frame and the substrate of the present invention adopt magnetic guiding cooperation and adapted shape limits, the substrate is vertically placed with automatic guiding, accurate and rapid positioning, the structure is simple, the installation and disassembly are convenient, the magnetic adsorption and fitting have high stability, and it has good adaptability to the external environment; the clamping and testing process adopts a modular structure design, the testing and installation are efficient and fast, and the testing process efficiency is improved; the flip-type structure quickly clamps the testing motor, the load member uses two sets of compression spring structures to provide the load force, the overall structure is in a folded form, the structure is compact and effective, greatly reducing the use of site space, and the motor load test can be carried out in a narrow installation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural view of the present invention;

[0017] Figure 2 is another perspective of the schematic structural view of the present invention;

[0018] Figure 3 is a schematic structural view of the substrate of the present invention;

[0019] Figure 4 is a schematic structural view of the clamping module of the present invention;

[0020] Figure 5 is an exploded view of the clamping module of the present invention;

[0021] Figure 6 is an exploded view of the pressing head module of the present invention;

[0022] Figure 7 is a schematic structural view of the conduction module of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] As Figures 1 to 7As shown, in this embodiment, the present invention includes a substrate 1, a mounting frame 2, a conduction module 3, a pressing head module 4, a clamping module 5, and a testing module 6. The mounting frame 2 is connected to an external fixed structure. The substrate 1 is fixedly connected to the mounting frame 2. The conduction module 3, the pressing head module 4, and the clamping module 5 are all fixed on the substrate 1. The testing module 6 is fixed to an external positioning mechanism and is arranged above the clamping module 5. The clamping module 5 fixes the testing motor on the substrate 1. The pressing head module 4 clamps the conduction part of the testing motor to the conduction module 3. There are several positioning and guiding parts provided at the lower end of the mounting frame 2, and the several positioning and guiding parts are in guiding cooperation with the external fixed mechanism. There is a mounting frame 2 provided on the mounting frame 2. There are several magnets and grooves adapted to the substrate 1 provided on the mounting frame 2. Magnets are provided at the lower end of the substrate 1 for quick installation and cooperation with the mounting frame 2. The conduction module 3 is also connected with an extension plate that conducts with an external signal processing mechanism. There are several positioning rods adapted to the positioning of the testing motor provided on the substrate 1. Before testing, the clamping module 5 opens and the testing motor is placed on the substrate 1. The clamping head 65 module clamps the conduction part of the testing motor to the conduction module 3. Subsequently, the clamping module 5 closes to press the testing motor tightly on the substrate 1. The load part 55 on the clamping module 5 is adjusted to be engaged with the output end of the testing motor. The position of the testing module 6 is moved above the testing motor to collect the sound emitted during the load operation of the testing motor. The mounting frame 2 and the substrate 1 adopt magnetic guiding cooperation and adapted outer shape limits. The substrate 1 is placed vertically with an automatic guiding and precise and rapid positioning structure, which is simple in structure, convenient for installation and disassembly, has high magnetic adsorption and bonding stability, and has good adaptability to the external environment; the clamping and testing process adopts a modular structure design, and the testing installation is efficient and fast, improving the efficiency of the testing process.

[0024] As Figure 4As shown, in this embodiment, the clamping module 5 includes a fixed seat 51, a pressing plate 52, a buckle 53, a top pressure spring 54, and a load member 55. The fixed seat 51 is fixedly connected to the substrate 1. One end of the pressing plate 52 is rotatably connected to the fixed seat 51. The buckle 53 is movably connected to the end of the pressing plate 52 away from the fixed seat 51. The top pressure spring 54 is disposed on the fixed seat 51. One end of the top pressure spring 54 is in top pressure cooperation with the fixed seat 51, and the other end of the top pressure spring 54 is connected to the pressing plate 52. The load member 55 is disposed on the pressing plate 52 and connected to the output end of the test motor. The fixed seat 51 is provided with a fixed ear. The pressing plate 52 is rotatably connected to the fixed ear through a connecting rod. The top pressure spring 54 is a torsion spring disposed between the fixed ears to achieve the quick opening and closing of the pressing plate 52. The load member 55 includes two sets of fixing plates, a slide rail group, a rotating shaft, two sets of compression springs, and a fastening member. The slide rail group is disposed on the pressing plate 52 for sliding cooperation. The two sets of fixing plates are fixed on the two sets of fixing plates. The two ends of the rotating shaft are fixed on the two sets of fixing plates. The fastening member is in sliding cooperation within the rotating shaft. The two sets of compression springs are respectively disposed on both sides of the fastening member and in top pressure cooperation with the fixing plates. The lower end of the fastening member is provided with a clamping groove, and the clamping groove is in clamping connection with the output end of the test motor. The test motor pushes the fastening member, causing the fastening member to compress the compression springs to do work, and the compression springs apply elastic force to the fastening member to thereby achieve the load of the test motor. The flip-type structure is used to quickly clamp the test motor. The load member 55 uses two sets of compression spring structures to provide the load force. The overall structure is in a folded form, which is compact and effective, greatly reducing the use of site space, and enabling the motor load test to be carried out in a narrow installation space. The structure of the top pressure spring 54 improves the response speed of the pressing plate 52 during the locking and opening process. Press the buckle 53, and the pressing plate 52 opens under the action of the elastic force and remains in the open state. There is no need to perform an additional action to open the pressing plate 52 during the process of placing the test motor, saving the single-action time and greatly improving the overall efficiency in the noise test of a large number of test motors.

[0025] As Figure 5As shown, in this embodiment, a number of pressing columns 521, positioning columns 522 and load limiting blocks 523 are provided on the pressing plate 52. A number of the pressing columns 521 are all floatingly connected to the lower surface of the pressing plate 52 and are in pressing cooperation with the test motor. The substrate 1 is provided with positioning holes, and the positioning columns 522 are in guiding cooperation with the positioning holes. The load limiting block 523 is arranged on the upper surface of the pressing plate 52 and is in limiting cooperation with the load member 55. The pressing column 521 is made of thermoplastic resin material, has good toughness and is not easy to break, and will not damage the surface of the test motor when pressing down. The pressing plate 52 is provided with a cover plate, and the cover plate is made of SUS304 material with high hardness and good wear resistance. A guide post and a spring are arranged between the pressing column 521 and the pressing plate 52. One end of the guide post is in pressing cooperation with the cover plate, the other end of the guide post is in guiding connection with the pressing column 521, and the spring is arranged between the cover plate and the pressing plate 52. The pressing column 521 presses down and is in floating cooperation with the test motor, and the pressing force is the elastic force of the spring. The surface of the load limiting block 523 is provided with a circular protrusion, and the load member 55 is provided with a stopping block, and the stopping block is provided with a groove that matches the circular protrusion of the load limiting block 523. The resin material pressing column 521 is used to limit and press the test motor in the Z-axis direction to prevent the test motor from jumping out due to vibration.

[0026] In this embodiment, a snap spring is arranged between the upper end of the snap 53 and the pressing plate 52. The substrate 1 is provided with a snap-in block 11 that cooperates with the snap 53. The snap 53 is provided with a snap protrusion, and the snap-in block 11 is provided with a snap groove that matches the protrusion.

[0027] As Figure 6 As shown, in this embodiment, the indenter module 4 includes an indenter positioning seat 41, an indenter spring 42 and a downward pressing fixing member 43. The indenter positioning seat 41 is fixedly connected to the substrate 1. The downward pressing fixing member 43 is rotatably connected to the indenter positioning seat 41. One end of the indenter spring 42 is connected to the indenter positioning seat 41, and the other end of the indenter spring 42 is in pressing cooperation with the downward pressing fixing member 43. One end of the downward pressing fixing member 43 is provided with a downward pressing protrusion 44, and the downward pressing protrusion 44 presses the conduction member of the test motor and the conduction module 3 in pressing cooperation. The downward pressing fixing block is made of AL6061 with soft texture to avoid damaging the conduction member of the test motor.

[0028] In this embodiment, the downward pressing fixing member 43 is provided with a number of anti-slip lines 45. The lower end of the indenter positioning seat 41 is provided with a number of guiding holes, and a number of the guiding holes are in guiding connection with the substrate 1. The anti-slip lines 45 are rectangular protrusions with clear convex lines for anti-slip and anti-disengagement.

[0029] As Figure 7As shown, in this embodiment, the conduction module 3 includes a first conduction member 31, a second conduction member 32, and a conduction plate 34. The first conduction member 31 and the second conduction member 32 are both electrically connected to the conduction plate 34. The first conduction member 31 is connected to an external signal processing mechanism, and the second conduction member 32 is electrically connected to a conduction member of a test motor.

[0030] In this embodiment, the first conduction member 31 is provided with a male head magnetic attraction group 311 and a female head magnetic attraction group 312. The female head magnetic attraction group 312 is electrically connected to the conduction plate 34. The male head magnetic attraction group 311 is connected to the mounting bracket 2. The male head magnetic attraction group 311 is conductively connected to the female head magnetic attraction group 312 through a plurality of probes. The male head magnetic attraction group 311 is fixed on the mounting bracket 2. When the substrate 1 is magnetically guided and installed with the mounting bracket 2, the male head magnetic attraction group 311 and the female head magnetic attraction group 312 are attracted and clamped with each other by magnetic force to achieve a signal conduction effect. After the test, when the substrate 1 is removed from the male head magnetic attraction group 311, it will not be taken away. A protective cover is provided on the male head magnetic attraction group 311. The protective cover is made of thermoplastic resin, which effectively avoids the influence of static electricity on the test. At the same time, a layer of foam is provided inside the protective cover to prevent damage to internal components during installation when the male head magnetic attraction group 311 is in the ejected state.

[0031] As Figure 2 shown, in this embodiment, the test module 6 includes a fixed frame 61, an adjustment frame 62, an extension rod 63, and a test piece 64. The fixed frame 61 is fixedly connected to an external device. The adjustment frame 62 is slidably connected to the fixed frame 61. The extension rod 63 is clamped and cooperated with the adjustment frame 62. A chuck 65 is provided at one end of the extension rod 63 away from the adjustment frame 62. The test piece 64 is clamped and cooperated with the chuck 65. The test piece 64 is arranged above the clamping module 5. The chuck 65 limits and clamps the test piece 64 through screws. A waist-shaped groove is provided on the adjustment frame 62. The adjustment frame 62 and the fixed frame 61 are slidably cooperated through the waist-shaped groove to adjust the height of the test piece 64. The extension rod 63 and the chuck 65 cooperate to adjust the distance between the test piece 64 and the test motor. The test piece 64 is a sound pickup microphone.

[0032] As Figure 4 shown, in this embodiment, a plurality of protruding columns are provided on the substrate 1, and the plurality of protruding columns are respectively connected to the pressing head module 4 and the clamping module 5 in a guiding manner.

[0033] The working principle of the present invention:

[0034] Before testing, the substrate 1 is separated from the mounting bracket 2. Press the buckle 53 to contract the buckle spring, and the buckle protrusion is disengaged from the fastening block 11. The pressing spring 54 drives the pressing plate 52 to open around the fixed seat 51. Then, place the test motor on the substrate 1 and position and install it through the positioning rod. After installation, flip the pressing plate 52 so that the buckle 53 is re-fastened and locked with the fastening block 11, and the pressing column 521 presses and fixes the test motor on the substrate 1. The load member 55 is engaged with the output end of the test motor. Press one end of the anti-slip pattern 45 of the downward pressing fixing member 43 to open it, and electrically connect the conducting member of the test motor to the conduction module 3. Immediately release one end of the anti-slip pattern 45 of the downward pressing fixing member 43, and the downward pressing protrusion 44 presses and cooperates with the conducting member of the test motor to fix it on the conduction module 3;

[0035] During testing, the substrate 1 is positioned and installed on the mounting bracket 2 through magnetic guidance. The female head magnetic attraction group 312 is connected and conducted with the male head magnetic attraction group 311 for signal transmission. Manually adjust the positions of the adjustment frame 62 and the extension rod 63, and place the test piece 64 above the test motor for sound collection.

[0036] Although the embodiments of the present invention are described with actual solutions, they do not constitute a limitation to the meaning of the present invention. For those skilled in the art, modifications to its implementation solutions according to this specification and combinations with other solutions are obvious.

Claims

1. A motor load noise test device, which comprises a substrate (1) and a mounting frame (2). The mounting frame (2) is connected to an external fixed structure, and the substrate (1) is fixedly connected to the mounting frame (2). It is characterized in that: The test equipment for the motor load noise further includes a conduction module (3), a pressing head module (4), a clamping module (5), and a test module (6). The conduction module (3), the pressing head module (4), and the clamping module (5) are all fixed on the substrate (1). The test module (6) is fixed to an external positioning mechanism and is arranged above the clamping module (5). The clamping module (5) fixes the test motor on the substrate (1), and the pressing head module (4) clamps the conduction part of the test motor onto the conduction module (3). The clamping module (5) includes a fixed seat (51), a pressing plate (52), a buckle (53), a top pressure spring (54), and a load part (55). The fixed seat (51) is fixedly connected to the substrate (1). One end of the pressing plate (52) is rotatably connected to the fixed seat (51). The buckle (53) is movably connected to the end of the pressing plate (52) away from the fixed seat (51). The top pressure spring (54) is arranged on the fixed seat (51). One end of the top pressure spring (54) is in top pressure cooperation with the fixed seat (51), and the other end of the top pressure spring (54) is connected to the pressing plate (52). The load part (55) is arranged on the pressing plate (52) and is connected to the output end of the test motor. The conduction module (3) includes a first conduction part (31), a second conduction part (32), and a conduction plate (34). The first conduction part (31) and the second conduction part (32) are both electrically connected to the conduction plate (34). The first conduction part (31) is connected to an external signal processing mechanism, and the second conduction part (32) is electrically connected to the conduction part of the test motor. The first conduction part (31) is provided with a male head magnetic attraction group (311) and a female head magnetic attraction group (312). The female head magnetic attraction group (312) is electrically connected to the conduction plate (34). The male head magnetic attraction group (311) is connected to the mounting frame (2). The male head magnetic attraction group (311) is conductively connected to the female head magnetic attraction group (312) through a plurality of probes.

2. The motor load noise testing device according to claim 1, wherein: A plurality of pressing columns (521), positioning columns (522), and load limiting blocks (523) are arranged on the pressing plate (52). A plurality of the pressing columns (521) are all floatingly connected to the lower surface of the pressing plate (52) and are in pressing cooperation with the test motor. The substrate (1) is provided with positioning holes. The positioning columns (522) are in guiding cooperation with the positioning holes. The load limiting blocks (523) are arranged on the upper surface of the pressing plate (52) and are in limiting cooperation with the load part (55).

3. The motor load noise testing device according to claim 1, characterized in that: A buckle spring is arranged between the upper end of the buckle (53) and the pressing plate (52). A buckling block (11) matching the buckle (53) is arranged on the substrate (1). The buckle (53) is provided with a buckle convex block, and the buckling block (11) is provided with a buckling groove adapted to the convex block.

4. The motor load noise testing device according to claim 1, characterized in that: The indenter module (4) includes an indenter positioning seat (41), an indenter spring (42), and a downward pressing fixing member (43). The indenter positioning seat (41) is fixedly connected to the substrate (1). The downward pressing fixing member (43) is rotatably connected to the indenter positioning seat (41). One end of the indenter spring (42) is connected to the indenter positioning seat (41), and the other end of the indenter spring (42) is in abutting cooperation with the downward pressing fixing member (43). One end of the downward pressing fixing member (43) is provided with a downward pressing protrusion (44), and the downward pressing protrusion (44) presses the conduction member of the test motor and the conduction module (3) tightly together.

5. The motor load noise testing device according to claim 4, wherein: The downward pressing fixing member (43) is provided with a plurality of anti-slip lines (45), and the lower end of the indenter positioning seat (41) is provided with a plurality of guide holes, and the plurality of guide holes are in guiding connection with the substrate (1).

6. The motor load noise testing device according to claim 1, characterized in that: The test module (6) includes a fixing frame (61), an adjusting frame (62), an extending rod (63), and a test piece (64). The fixing frame (61) is fixedly connected to an external device. The adjusting frame (62) is slidably connected to the fixing frame (61). The extending rod (63) is in clamping cooperation with the adjusting frame (62). One end of the extending rod (63) away from the adjusting frame (62) is provided with a chuck (65). The test piece (64) is in clamping cooperation with the chuck (65), and the test piece (64) is arranged above the clamping module (5).

7. The motor load noise testing device according to claim 1, characterized in that: A plurality of protruding columns are provided on the substrate (1), and the plurality of protruding columns are respectively in guiding connection with the indenter module (4) and the clamping module (5).

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