A device for testing the travel distance of electronic keyboard keys

Abstract

This application discloses an electronic keyboard key travel testing device, belonging to the field of key detection technology. It mainly includes an operating table, a clamping assembly, and a testing assembly. The testing assembly includes a base plate, a slide rail, a sliding block, and a first electric cylinder. The output end of the first electric cylinder is equipped with a first detection unit. A side plate is mounted on the base plate, and a multi-stage cylinder is mounted on the side plate. Each multi-stage cylinder has a first end and a second end. A moving block is mounted on the first end, and a connecting block is mounted on the second end. A main rack is mounted on the connecting block, and a second electric cylinder is mounted on the moving block. The output end of the second electric cylinder is equipped with a second detection unit. This electronic keyboard key travel testing device, through the design of the testing assembly, can test the time it takes for a key to rebound to its initial position after losing load while simultaneously testing the key's pressing travel, thus achieving the effect of testing the rebound travel of a key after a sudden loss of load.

Description

Technical Field

[0001] This application relates to intelligent sensor devices, and more specifically to the field of key detection technology, specifically to a device for testing the travel distance of electronic keyboard keys. Background Technology

[0002] An electronic keyboard is an electronic keyboard instrument that uses electronic technology to simulate the timbre of traditional musical instruments and has multi-functional playing characteristics. During the production process of an electronic keyboard or after long-term use, it is necessary to test the key travel of the keys to ensure the stability and durability of the equipment. In the process of testing the key travel, the testing equipment is also a device that uses intelligent sensors for inspection.

[0003] For example, patent CN214894009U discloses a game controller button travel testing device. This device places the game controller on a movable plate and fixes it to the movable plate using the cooperation between a rubber strip and a second spring strip. The travel testing body is activated, and the travel testing body drives the pressing rod to press the button on the game controller. At the same time, the movable plate moves down in the rectangular groove under the pressure from the pressing rod, and the first spring strip is compressed, which reduces the impact of the pressing rod on the button of the game controller. When the movable plate moves down and squeezes the pressure sensor, the pressure sensor automatically senses the pressure and closes the travel testing body. Thus, the travel of the game controller button is calculated by the body, which improves the protection of the game controller button.

[0004] While the aforementioned patent can test the key travel, during the reset process, the vertical retraction of the pressing rod may cause it to come into contact with the rebounding key, affecting the key's rebound motion. Consequently, it is impossible to test whether the key can rebound to its initial position in a short time after suddenly losing load. Especially for retesting keys after long-term use, the ability to reset quickly is an important indicator of key performance, affecting the user experience and the electronic keyboard's tone.

[0005] Therefore, it is necessary to provide a device for testing the key travel of electronic keyboard keys to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0007] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide an electronic keyboard key travel testing device, which can test the rebound travel of the key after it suddenly loses its load.

[0008] The technical solution adopted by this application to solve its technical problem is: an electronic keyboard key travel testing device, including an operating table; a clamping assembly disposed on the operating table; a testing assembly disposed on the operating table, the testing assembly having a suitable mounting pad, the testing assembly including: a base plate, the base plate being mounted on the pad, a slide rail being mounted on the base plate, and a sliding block being slidably disposed on the slide rail; a first electric cylinder, the first electric cylinder being mounted on the sliding block, the output end of the first electric cylinder being provided with a first detection part; and a side plate, the side plate being mounted on the base plate, the side plate... The device is equipped with a multi-stage cylinder, which has a first end and a second end. A movable block is mounted on the first end, and a connecting block is mounted on the second end. A main rack is mounted on the connecting block. A second electric cylinder is mounted on the movable block, and a second detection unit is provided at the output end of the second electric cylinder. A straight rod is mounted on the base plate, and a gear is rotatably mounted on the straight rod. A secondary rack meshes with the gear and is mounted on one side of a sliding block. A first slide groove and a second slide groove are provided through the base plate, and the first detection unit and the second detection unit pass through the first slide groove and the second slide groove, respectively.

[0009] Furthermore, the second end is slidably disposed inside the first end, a guide rail is mounted on the side plate, the connecting block is slidably disposed on the guide rail, and the moving block is slidably disposed on the guide rail.

[0010] Furthermore, the first detection unit includes a base installed at the output end of the first electric cylinder, a second sensor installed at the bottom of the base, and a probe installed on the second sensor.

[0011] Furthermore, the second detection unit includes a connecting frame installed at the output end of the second electric cylinder, a first sensor mounted on the connecting frame, a probe disposed on the first sensor, the connecting frame having an extension, and the first sensor located at the end of the extension near the probe.

[0012] Furthermore, two sets of support plates are installed on the operating table. A second moving module is provided on the top of the two sets of support plates. The second moving module has a second slider. A third moving module is provided on the second slider. The third moving module has a third slider. The third slider is connected to the pad plate.

[0013] Furthermore, the clamping assembly includes a first moving module disposed inside the operating table, the first moving module having a first slider on which a shelf is mounted.

[0014] Furthermore, two sets of first cylinders are installed on the shelf, and push plates are installed at the output end of the first cylinders. The two sets of first cylinders are arranged opposite each other.

[0015] Furthermore, the shelf is provided with auxiliary components, including a fourth moving module mounted on the shelf, the fourth moving module having a fourth slider.

[0016] Furthermore, a mounting block is installed on the fourth slider, a second cylinder is mounted on the mounting block, and a top block is installed on the output end of the second cylinder.

[0017] Furthermore, a fixing frame is installed at the bottom of the pad, a motor is installed on one side of the fixing frame, a rotating rod is installed at the output end of the motor, the rotating rod is rotatably mounted on the fixing frame, and a clamping part is installed on the rotating rod.

[0018] The beneficial effects of this application are: the testing device of this application belongs to intelligent sensor devices, and provides an electronic keyboard key travel testing device. By setting the testing components, while testing the key pressing travel, it can also test the time it takes for the key to rebound to the initial position after losing load, thus achieving the effect of testing the rebound travel of the key after it suddenly loses load.

[0019] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a 3D physical image of an electronic keyboard key travel testing device according to this application;

[0022] Figure 2 This is an overall schematic diagram of an electronic keyboard key travel testing device according to this application;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0025] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0026] Figure 6 for Figure 4 Another perspective view of the central part as a whole;

[0027] Figure 7 for Figure 6 Enlarged view of point D in the middle;

[0028] Figure 8 for Figure 2 Another perspective view of the central part as a whole;

[0029] Figure 9 for Figure 8 Enlarged view of point E in the middle;

[0030] The following are the labeling elements in the figure:

[0031] 1. Control panel;

[0032] 2. Clamping assembly; 21. Storage plate; 22. First moving module; 23. First cylinder; 24. Push plate;

[0033] 3. Test components; 31. Second moving module; 32. Third moving module; 321. Support plate; 33. Pad plate; 34. Base plate; 35. Slide rail; 36. Sliding block; 37. First electric cylinder; 38. Secondary rack; 381. Gear; 39. Side plate;

[0034] 4. Guide rail; 41. Connecting block; 42. Main rack; 43. Second electric cylinder; 44. Moving block; 45. Multi-stage cylinder; 451. First end; 452. Second end; 46. Connecting frame; 47. First sensor; 48. Probe; 49. Second sensor; 410. Probe;

[0035] 5. Auxiliary components; 51. Fourth moving module; 52. Mounting block; 53. Top block; 54. Second cylinder; 55. Motor; 56. Clamping part; 57. Rotating rod; 58. Fixing frame. Detailed Implementation

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0038] Example 1: As Figure 2 As shown, the testing device of this application belongs to intelligent sensor devices, and provides an electronic keyboard key travel testing device, including an operating table 1, on which a clamping component 2 is provided. The clamping component 2 is suitable for clamping the electronic keyboard to be tested, specifically:

[0039] The clamping assembly 2 includes a first moving module 22 disposed inside the operating table 1. The first moving module 22 is powered by a motor or hydraulic motor and uses a ball screw and a linear guide as a transmission mechanism. The first moving module 22 has a first slider suitable for sliding.

[0040] A shelf 21 is fixedly mounted on the first slider. The shelf 21 is suitable for placing the electronic keyboard to be tested, and can be moved by the first moving module 22. Figure 2 The first moving module 22 moves back and forth on the horizontal plane to move the electronic keyboard and determine the test point. For ease of explanation, the moving direction of the first moving module 22 is defined as the Y direction.

[0041] Two sets of first cylinders 23 are fixedly installed on the shelf 21. A push plate 24 is fixedly installed on the output end of the first cylinder 23. The two sets of first cylinders 23 are arranged opposite to each other so that the electronic keyboard can be placed between the two sets of push plates 24. The first cylinders 23 are activated to drive the two sets of push plates 24 to move closer to each other to clamp the electronic keyboard.

[0042] like Figures 2-4 and Figure 9 As shown, a test component 3 is provided on the control panel 1. This test component 3 is suitable for testing the keys of the electronic keyboard.

[0043] The test assembly 3 includes two sets of support plates 321 fixedly mounted on the operating table 1. A second moving module 31 is commonly located on the top of both sets of support plates 321. This second moving module 31 has the same structure as the first moving module 22 and includes a second slider. This second slider can... Figure 2 The instrument moves left and right on the horizontal plane to select the piano key to be tested. For ease of explanation, this is defined as the X-direction.

[0044] A third moving module 32 is provided on the second slider. This third moving module 32 adopts the same structure as the first moving module 22 and has a third slider that can move along... Figure 2 The vertical direction within is moved up and down; for ease of explanation, this is defined as the Z-direction.

[0045] A pad 33 is fixedly installed on the third slider, a base plate 34 is fixedly installed on the pad 33, a slide rail 35 is fixedly installed on the top of the base plate 34, and a sliding block 36 is slidably arranged on the slide rail 35. The sliding block 36 is adapted to slide on the slide rail 35 to adjust its position, and after the sliding block 36 is adjusted, it can be fixed to the slide rail 35 by bolts.

[0046] Meanwhile, a first electric cylinder 37 is fixedly installed on the top of the sliding block 36. The output end of the first electric cylinder 37 is provided with a first detection part, which is used for testing the pressing stroke of the piano key. It should be noted that a first sliding groove (not shown in the figure) is provided on the base plate 34. The output end of the first electric cylinder 37 passes through the base plate 34 through the first sliding groove, so that the first detection part is located at the bottom of the base plate 34.

[0047] Continue to refer to Figure 9 The first detection unit includes a base (not shown in the figure) fixedly installed at the output end of the first electric cylinder 37. A second sensor 49 is fixedly installed at the bottom of the base, and a probe 410 is provided on the second sensor 49.

[0048] After the electronic keyboard is clamped, the first moving module 22 moves the electronic keyboard to below the probe 410. The second moving module 31 is activated to move the probe 410 to select the key to be tested. Then, the third moving module 32 is activated to move the probe 410 down to above the key, and to the end of the key and relatively close to the middle. The first electric cylinder 37 is activated to move the probe 410 down to press the key until the key is pressed to the maximum position. At the same time, the second sensor 49 uploads the data in real time, and the stroke can be calculated through the data.

[0049] In actual use, when the keys of an electronic keyboard are pressed, the fingers quickly separate from the keys, meaning the pressed keys suddenly lose their load. Although the above process can test the key travel, in order to protect the keys during the test, the probe 410 moves slowly when pressing and separating the keys to avoid damaging the keys due to excessive force.

[0050] This results in the button being in contact with the probe 410 both when pressed and released, making it impossible to test whether the button can rebound to its initial position in a short time after a sudden loss of load. Consequently, there is relatively little test data, leading to inaccurate evaluation results in subsequent product performance assessments.

[0051] like Figure 2 and Figures 4-7 As shown, to solve this problem, a side plate 39 is fixedly installed on the top of the base plate 34. A multi-section cylinder 45 is fixedly installed on the side plate 39. The multi-section cylinder 45 has a first end 451 and a second end 452 that is slidably disposed inside the first end 451. The two sets of ends can extend step by step. When the first end 451 extends, it will simultaneously drive the second end 452 to extend. After the first end 451 extends to the maximum position, the second end 452 can extend out from the first end 451. The structure and principle of the multi-section cylinder 45 are existing technologies. You can refer to the step-by-step extension structure mentioned in the announcement number CN207278618U. It will not be elaborated on here.

[0052] A movable block 44 is fixedly installed on the first end 451, and a guide rail 4 is fixedly installed on the side plate 39. The movable block 44 is slidably mounted on the slide rail 35, so that when the first end 451 moves, the movable block 44 is driven to slide on the guide rail 4.

[0053] A second electric cylinder 43 is fixedly installed on the top of the moving block 44. The output end of the second electric cylinder 43 is provided with a second detection part, which is used to test the rebound performance of the piano key. It should be noted that a second sliding groove (not shown in the figure) is provided on the base plate 34. The output end of the second electric cylinder 43 passes through the base plate 34 through the second sliding groove, so that the second detection part is located at the bottom of the base plate 34.

[0054] The second detection unit includes a connecting bracket 46 fixedly installed at the output end of the second electric cylinder 43 (e.g., Figure 9 The connecting frame 46 has an extension, and the end of the extension is located near the first slide groove. At the same time, a first sensor 47 is fixedly installed on the connecting frame 46. A probe 48 is provided on the first sensor 47, so that the probe 48 and the probe 410 are close to each other. In subsequent testing, both the probe 48 and the probe 410 can be located on the piano key, avoiding the probe 48 or the probe 410 from falling out due to the small width of the piano key.

[0055] Continue to refer to Figure 6 A straight rod (not shown in the figure) is fixedly installed on the top of the base plate 34. A gear 381 is rotatably installed on the top of the straight rod. At the same time, a secondary rack 38 is fixedly installed on one side of the sliding block 36. The secondary rack 38 can mesh with the gear 381. So when the gear 381 rotates, the sliding block 36 can be driven to slide on the slide rail 35 through the meshing secondary rack 38, thereby driving the probe 410 on the first detection part to move along the first slide groove.

[0056] Furthermore, a connecting block 41 is fixedly installed on the second end 452, and a main rack 42 is fixedly installed on the connecting block 41. The main rack 42 can also mesh with the gear 381, so that when the connecting block 41 moves with the second end 452, it can drive the gear 381 to rotate.

[0057] It should be noted that, due to the large meshing force between gear 381 and rack 38, rack 38 will not slide freely. Therefore, the mutual locking of gear 381 and rack 38 replaces the aforementioned bolt locking to avoid the problem of inaccurate test results caused by probe 410 sliding freely when testing the key travel of the piano keys. For ease of explanation, the end of the slide (including the first slide and the second slide) closer to the pad 33 is defined as the starting end, and the end farther from the pad 33 is defined as the ending end.

[0058] In the initial state, the first end 451 of the multi-section cylinder 45 is in the maximum position (i.e., the position between the beginning and end of the slide groove, which is defined as the initial position), while the second end 452 is not extended. At this time, the first electric cylinder 37 and the second electric cylinder 43 are close to each other, so that the probe 410 and the probe 48 are in a "side-by-side" state. At this time, the meshing teeth at the end of the main rack 42 mesh with the gear 381, and at the same time, the meshing teeth on the secondary rack 38 mesh with the gear 381. Thus, when testing the key travel of the piano key, both the probe 48 and the probe 410 can be above the piano key, and the probe 410 can be controlled independently to test the piano key. At this time, due to the interlock between the gear 381 and the two sets of racks, the stability of the probe 410 test is maintained.

[0059] When it is necessary to test whether the piano key can return to its initial rebound position after a sudden loss of load, the drive probe 48 and probe 410 are both located above the piano key. The second electric cylinder 43 drives the probe 48 to move downward until it contacts the piano key surface. When there is data on the second sensor 49, the second electric cylinder 43 stops. At this time, the first set of data on the height of the piano key is collected, and the second electric cylinder 43 maintains this position, so that the position of the probe 48 is fixed at the measurement position.

[0060] Subsequently, the multi-section cylinder 45 retracts through the first end 451, driving the moving block 44 to move to the end of the second slide groove, causing the probe 48 to move from the surface of the piano key to the outside of the piano key until the probe 48 separates from the surface of the piano key. During this process, the first sensor 47 collects multiple sets of height position data of the piano key and summarizes them to form average height data.

[0061] In the initial stage of the retraction of the first end 451, the second end 452 is moved synchronously, so that the meshing teeth at the end of the main rack 42 disengage from the gear 381, and during the continuous retraction of the first end 451, the gear 381 will not be rotated, thus not affecting the position of the probe 410.

[0062] Then, the first electric cylinder 37 is activated to move the probe 410 downward to press the piano key until the key moves to its maximum distance. At this time, the pressing stroke data is collected to complete the first stage of the pressing stroke test.

[0063] Subsequently, the multi-stage cylinder 45 drives the first end 451 to extend. When the probe 48 and probe 410 are in the initial position, the main rack 42 begins to mesh with the gear 381. Then, the second end 452 extends, driving the main rack 42 to move towards the starting end. During its movement, it will continue to mesh with the gear 381, thereby driving the sliding block 36 to move on the slide rail 35 through the secondary rack 38. This, in turn, drives the probe 410 to move towards the end of the piano key until the probe 410 separates from the piano key. During this process, the probe 410 is always in the state of pressing the piano key, thus keeping the piano key in the pressed position. When the probe 410 separates from the piano key, the probe 48 is installed on the first end 451, so the probe 48 is in the initial position and fixed in the measurement position in the height direction.

[0064] Finally, the piano key resets, which in turn triggers probe 48, which in turn triggers the second sensor 49 and uploads the data to test whether the pressed piano key can rebound to its initial position in a short time after suddenly losing its load, in order to test whether its rebound performance meets the specifications, and to complete the second stage of rebound performance test.

[0065] It should be noted that the time taken for the natural rebound stroke of the piano key can also be evaluated based on the time it takes for the probe 410 to separate from the piano key and the time it takes for the piano key to contact the probe 48 after the piano key rebounds, so as to evaluate whether it meets the design requirements or industry standards.

[0066] Example 2: Since the piano keys are divided into multiple groups of white keys with small gaps and flush surfaces, and black keys located between the multiple groups of white keys, and there is a height difference between the white keys and the black keys, and the piano keys are rotating parts and are easily pressed, the piano keys may be "slightly" pressed when the probe 48 contacts the piano key surface, which will cause an error in the initial position. Therefore, it is necessary to fix the black keys and white keys to avoid the piano keys being pressed when the measuring probe 48 measures the initial position.

[0067] To fix the white bonds, such as Figures 2-3 As shown, an auxiliary component 5 is provided on the shelf 21, which is suitable for fixing the piano keys;

[0068] Auxiliary component 5 includes a fourth moving module 51 fixedly mounted on the shelf 21. The fourth moving module 51 has the same structure and principle as the first moving module 22. The fourth moving module 51 has a fourth slider, on which a mounting block 52 is fixedly mounted. A second cylinder 54 is fixedly mounted on the mounting block 52. A top block 53 is fixedly mounted on the output end of the second cylinder 54. The top block 53 is located at one end of the white key.

[0069] Then, when testing the white key, the fourth moving module 51 drives the second cylinder 54 and the top block 53 to move to one end of the white key to be tested. The second cylinder 54 is activated to drive the top block 53 to move towards the white key until it is against one end of the white key to hold the white key. This holds and restricts the white key when the probe 48 measures the initial position of the white key to prevent the white key from being touched. After the measurement is completed, the second cylinder 54 drives the top block 53 to reset.

[0070] It should be noted that the highest point of the top block 53 is lower than the highest point of the white key to avoid interference when the probes 48 and 410 are moved out of the keys;

[0071] To fix the black keys, such as Figures 8-9 As shown, a fixing frame 58 is fixedly installed at the bottom of the pad 33. A motor 55 is fixedly installed on one side of the fixing frame 58. A rotating rod 57 is fixedly installed at the output end of the motor 55. The rotating rod 57 is rotatably installed on the fixing frame 58, and a clamping part 56 is fixedly installed on the rotating rod 57. The clamping part 56 is an existing pneumatic finger. The specific structure and principle will not be described in detail here.

[0072] In the initial state, the clamping part 56 is in a horizontal state to avoid interference when measuring the white key. When it is necessary to test the black key, the motor 55 drives the clamping part 56 to a vertical state through the rotating rod 57. At this time, the lowest point of the clamping part 56 is lower than the lowest point of the probe 48.

[0073] Then, the second moving module 31 moves the clamping part 56 above the black key, and the third moving module 32 moves the clamping part 56 down until the grippers of the clamping part 56 are on both sides of the black key. The clamping part 56 is then activated to clamp the black key, thereby clamping and restricting the black key when the probe 48 measures the initial position of the black key to prevent the black key from being touched. After the measurement is completed, the clamping part 56 releases the clamp and returns to the initial state.

[0074] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electronic keyboard key stroke and rebound time testing device, characterized by: include: Control panel (1); A clamping assembly (2) is disposed on the operating table (1); Test component (3), which is disposed on the operating table (1), has a mounting plate (33) suitable for installation, and includes: A base plate (34) is mounted on the pad (33), and a slide rail (35) is mounted on the base plate (34). A sliding block (36) is slidably disposed on the slide rail (35). A first electric cylinder (37) is mounted on the sliding block (36), and a first detection unit is provided at the output end of the first electric cylinder (37); A side plate (39) is mounted on the base plate (34). A multi-stage cylinder (45) is mounted on the side plate (39). The multi-stage cylinder (45) has a first end (451) and a second end (452). A moving block (44) is mounted on the first end (451), and a connecting block (41) is mounted on the second end (452). A main rack (42) is mounted on the connecting block (41). The second electric cylinder (43) is mounted on the moving block (44), and the output end of the second electric cylinder (43) is provided with a second detection unit; Wherein: a straight rod is installed on the base plate (34), a gear (381) is rotatably installed on the straight rod, a secondary rack (38) meshes on the gear (381), and the secondary rack (38) is installed on one side of the sliding block (36); The base plate (34) is provided with a first sliding groove and a second sliding groove, and the first detection part and the second detection part pass through the first sliding groove and the second sliding groove respectively; The main rack (42) meshes with the gear (381). When the connecting block (41) moves with the second end (452), it drives the gear (381) to rotate. When the first end (451) retracts, it synchronously drives the second end (452) to move, so that the meshing teeth at the end of the main rack (42) disengage from the gear (381). And during the continuous retraction of the first end (451), it will not drive the gear (381) to rotate.

2. The electronic keyboard key stroke and rebound time testing device of claim 1, wherein: The second end (452) is slidably disposed inside the first end (451), a guide rail (4) is mounted on the side plate (39), the connecting block (41) is slidably disposed on the guide rail (4), and the moving block (44) is slidably disposed on the guide rail (4).

3. The electronic keyboard key stroke and rebound time testing device of claim 2, wherein: The first detection unit includes a base installed at the output end of the first electric cylinder (37), and a second sensor (49) is installed at the bottom of the base. A probe (410) is provided on the second sensor (49).

4. The electronic keyboard key travel and rebound time testing device according to claim 3, characterized in that: The second detection unit includes a connecting frame (46) installed at the output end of the second electric cylinder (43), a first sensor (47) is installed on the connecting frame (46), a probe (48) is provided on the first sensor (47), the connecting frame (46) has an extension, and the first sensor (47) is located at one end of the extension near the probe (410).

5. The electronic keyboard key travel and rebound time testing device according to claim 1, characterized in that: Two sets of support plates (321) are installed on the operating table (1). The top of the two sets of support plates (321) is provided with a second moving module (31). The second moving module (31) has a second slider. A third moving module (32) is provided on the second slider. The third moving module (32) has a third slider. The third slider is connected to the pad (33).

6. The device for testing the key travel and rebound time of an electronic keyboard according to claim 1, characterized in that: The clamping assembly (2) includes a first moving module (22) disposed inside the operating table (1), the first moving module (22) having a first slider and a shelf (21) mounted on the first slider.

7. The electronic keyboard key travel and rebound time testing device according to claim 6, characterized in that: Two sets of first cylinders (23) are installed on the shelf (21). A push plate (24) is installed at the output end of the first cylinder (23). The two sets of first cylinders (23) are arranged opposite to each other.

8. The electronic keyboard key travel and rebound time testing device according to claim 7, characterized in that: An auxiliary component (5) is provided on the shelf (21), the auxiliary component (5) including a fourth moving module (51) installed on the shelf (21), the fourth moving module (51) having a fourth slider.

9. The electronic keyboard key travel and rebound time testing device according to claim 8, characterized in that: A mounting block (52) is installed on the fourth slider, and a second cylinder (54) is installed on the mounting block (52). A top block (53) is installed at the output end of the second cylinder (54).

10. The electronic keyboard key travel and rebound time testing device according to claim 9, characterized in that: A fixing frame (58) is installed at the bottom of the pad (33). A motor (55) is installed on one side of the fixing frame (58). A rotating rod (57) is installed at the output end of the motor (55). The rotating rod (57) is rotatably mounted on the fixing frame (58). A clamping part (56) is installed on the rotating rod (57).

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