Keyboard knocking rod force adjusting device

Abstract

The utility model provides a force adjusting device for a keyboard knocking rod. The force adjusting device comprises a rack, a rapid clamping device and an outer sleeve installed on the rack and used for clamping the knocking rod. The force correcting device comprises a first lifting mechanism installed on the rack and a force measuring mechanism arranged at the output end of the first lifting mechanism, and the first lifting mechanism is used for driving the force measuring mechanism to act, so that the force measuring mechanism pushes the inner rod of the knocking rod to compress the spring in the outer sleeve to a preset force value; and the adjusting device is installed on the rack and used for driving a nut on the inner rod to act, and the nut is used for limiting the inner rod and the outer sleeve so as to adjust the movement amount between the inner rod and the outer sleeve to a preset value. According to the scheme, automatic force adjustment of the knocking rod is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of keyboard debugging experimental equipment, in particular to a keyboard knocking rod force adjusting device. Background Art

[0002] In order to ensure the quality of the keyboard, the quality reliability of the keyboard needs to be tested. At present, the test of the keyboard striker in the laboratory mainly adopts the manual force adjustment method, which includes:

[0003] 1. The operator uses a fixing fixture to fix the outer sleeve of the knocking rod so that the lower end of the inner rod of the knocking rod presses against the electronic scale. A spring is provided between the outer sleeve of the knocking rod and the inner rod.

[0004] 2. Use a thickness gauge to adjust the compression distance between the outer sleeve and the inner rod to the preset value to adjust the spring compression and adjust the tapping rod to the target force value.

[0005] 3. Operate the knocking rod and observe whether the rebound force value of the knocking rod on the electronic scale is the target force value. If it is the target force value, the force adjustment is successful, otherwise repeat the force adjustment process.

[0006] Manual force adjustment is time-consuming and labor-intensive, and the force cannot be effectively controlled during manual force adjustment. The operator needs to control the force based on experience when operating the knocking rod for testing, which affects the test results. Utility Model Content

[0007] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a keyboard striking rod force adjustment device for solving the above-mentioned problems.

[0008] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a keyboard striking rod force adjustment device, comprising:

[0009] frame,

[0010] A quick clamping device, mounted on the frame, for clamping the outer sleeve of the striking rod;

[0011] A force calibration device, the force calibration device comprising a first lifting mechanism mounted on a frame and a force measuring mechanism arranged at an output end of the first lifting mechanism, the first lifting mechanism being used to drive the force measuring mechanism to move so that the force measuring mechanism pushes the inner rod of the knocking rod to compress the spring in the outer sleeve to a preset force value;

[0012] The adjusting device is installed on the frame and is used to drive the nut on the inner rod to move. The nut is used to limit the inner rod and the outer sleeve to adjust the movement between the inner rod and the outer sleeve to a preset value.

[0013] Optionally, the adjusting device comprises:

[0014] A fixing assembly, mounted on the frame, for clamping and fixing the inner rod of the knocking rod;

[0015] The action component is installed on the frame and is used to cooperate with the fixing component to adjust the position of the nut.

[0016] Optionally, the action component includes:

[0017] A second lifting mechanism is installed on the frame;

[0018] A first rotating mechanism, mounted at an output end of the second lifting mechanism;

[0019] A first electric clamp, mounted at the output end of the rotating mechanism, and used to rotate a nut on the inner rod driven by the first rotating mechanism, wherein the nut includes a first nut and a second nut which are mutually limited;

[0020] The second electric clamp is installed at the output end of the second lifting mechanism, and is used for clamping the second nut when the first electric clamp rotates the first nut.

[0021] Optionally, the fixing assembly comprises a third electric clamp, which is mounted on the frame and is used to clamp the inner rod.

[0022] Optionally, the adjustment device further comprises a detection mechanism, wherein the detection mechanism is mounted on the frame and is used to detect the position of the nut.

[0023] Optionally, the detection mechanism includes a transverse movement component and a detection sensor for detecting the position of the nut, the transverse movement component is installed on the frame, and the output end of the transverse movement component is connected to the detection sensor.

[0024] Optionally, the keyboard tapping rod force adjustment device also includes a testing device for simulating keyboard tapping action, the testing device is installed on the rack, and the output end of the testing device is connected to the quick clamping device.

[0025] Optionally, the testing device comprises:

[0026] a second rotating mechanism, the second rotating mechanism being mounted on the frame;

[0027] an eccentric assembly, mounted on the output end of the second rotating mechanism, and configured to move eccentrically with the rotation of the second rotating mechanism;

[0028] A movable frame cooperates with the eccentric assembly and is connected to the quick clamping device, and is used for converting the rotational motion of the eccentric assembly into a linear reciprocating motion that drives the quick clamping device.

[0029] Optionally, the quick clamping device comprises:

[0030] A fixing seat connected to the testing device, the fixing seat being provided with a placement groove for placing the outer sleeve, and a placement opening for placing the outer sleeve on a side of the placement groove;

[0031] The locking mechanism is installed on the fixing seat and is used to lock the outer sleeve in the placement groove.

[0032] Optionally, the locking mechanism comprises:

[0033] A locking action piece, the locking action piece is rotatably mounted on the fixing seat;

[0034] The locking member is installed on the locking action member and is driven by the locking action member to move.

[0035] An elastic reset member, disposed between the fixing seat and the locking member, and used for cooperating with the locking member to switch the outer sleeve between locking and releasing states;

[0036] When the locking action piece abuts against the locking piece, the locking piece releases the outer sleeve and the elastic return piece is compressed; when the locking action piece releases the locking piece, the locking piece is actuated and locks the outer sleeve under the action of the elastic return piece.

[0037] Optionally, the locking element comprises a rotating shaft, a contact block is arranged radially of the rotating shaft, and the contact block rotates with the rotating shaft to push the locking element to operate.

[0038] Optionally, the fixed seat is provided with a first rotation position and a second rotation position; a channel for the rotating shaft to pass through is opened in the locking member, and the contact block extends into the channel along with the rotating shaft; the locking member is provided with a matching portion for extending into the upper limit groove of the outer sleeve; when the rotating shaft rotates to the first rotation position, the contact block abuts against the inner wall of the channel, so that the matching portion on the locking member disengages from the limiting groove on the outer sleeve; when the rotating shaft rotates to the second rotation position, the contact block disengages from the inner wall of the channel, and extends into the limiting groove under the support of the elastic reset member of the locking member.

[0039] Optionally, the quick clamping device further comprises a limiting mechanism, wherein the limiting mechanism is mounted on the locking action member and is used to block the placement opening.

[0040] Optionally, the limiting mechanism includes a movable arm and a quick pressing clamp, the movable arm is mounted on the locking action piece, the quick pressing clamp is mounted on the movable arm, and the quick pressing clamp is provided with a blocking block for blocking the placement opening.

[0041] Optionally, the locking action member also includes a rotating handle arranged on the rotating shaft, the rotating handle is provided with a limit block for cooperating with the fixed seat to limit the position, and the limit block is provided with a first limit portion for cooperating with the first rotation position and a second limit portion for cooperating with the second rotation position.

[0042] Optionally, magnetic suction parts for adsorbing the limit block are arranged in the first rotation position and the second rotation position.

[0043] As described above, the keyboard striking rod force regulating device of the utility model has the following beneficial effects:

[0044] In this solution, the outer sleeve of the knock rod is clamped by a quick clamping device. Since an inner rod is arranged inside the outer sleeve and a spring is arranged between the inner rod and the outer sleeve, the inner rod can still move after the outer sleeve is clamped by the quick clamping device. The spring can be compressed to a preset force value by the force calibration device against the inner rod. However, considering the actual installation environment of the knock rod on the keyboard, the compression amount of the spring needs to reach a preset value. Therefore, the position of the nut on the inner rod can be adjusted by the adjustment device to meet the demand.

[0045] It should also be noted that the setting of the nut can limit the outer sleeve. Since the spring remains compressed, the outer sleeve will maintain a tendency to move upward, and due to the setting of the nut, when the outer sleeve abuts against the nut, it is limited by the nut, so that the spring is kept at the required compression amount when the knock rod is not operated.

[0046] The setting of the keyboard striking rod force adjustment device in this solution replaces the existing manual force adjustment, effectively increasing the force adjustment accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is an axonometric view of the keyboard striking rod force regulating device in the embodiment of the utility model.

[0048] Figure 2 for Figure 1 Enlarged view of point A0 in the middle.

[0049] Figure 3 It is a schematic diagram of a testing device and a quick clamping device in an embodiment of the utility model.

[0050] Figure 4 It is a connection diagram of the testing device and the quick clamping device in the embodiment of the utility model.

[0051] Figure 5 It is a structural schematic diagram of the locking action member in the embodiment of the utility model.

[0052] Figure 6 It is a partial schematic diagram of the keyboard striking rod force regulating device in the embodiment of the utility model.

[0053] Figure 7 It is another partial schematic diagram of the keyboard striking rod force regulating device in the embodiment of the utility model. DETAILED DESCRIPTION

[0054] The figure marks in the drawings of the specification include: frame 1, quick clamping device 2, fixed seat 21, placement groove 211, locking action piece 22, rotating shaft 221, limit block 222, first limit part 2221, second limit part 2222, handle 223, contact block 224, locking piece 23, matching part 231, elastic reset piece 24, force calibration device 3, first lifting mechanism 31, force measuring mechanism 32, adjustment device 4, second lifting mechanism 41, first rotating mechanism 42, first electric clamp 43, second electric clamp 44, third electric clamp 45, detection mechanism 46, transverse movement assembly 461, detection sensor 462, testing device 5, second rotating mechanism 501, eccentric assembly 502, movable frame 503, knocking rod 6, outer sleeve 61, inner rod 62, first nut 63, second nut 64, limit groove 65.

[0055] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0056] The utility model provides a keyboard striking rod force regulating device, such as Figures 1 to 7 shown.

[0057] Reference Figure 1 and attached Figure 2 As shown, in an exemplary embodiment of the present application, a keyboard striking rod force adjustment device is provided, comprising:

[0058] Rack 1,

[0059] A quick clamping device 2, mounted on the frame 1, for clamping the outer sleeve 61 of the knocking rod 6;

[0060] The force calibration device 3 includes a first lifting mechanism 31 installed on the frame 1 and a force measuring mechanism 32 arranged at the output end of the first lifting mechanism 31. The first lifting mechanism 31 is used to drive the force measuring mechanism 32 to move, so that the force measuring mechanism 32 pushes the inner rod 62 of the knocking rod 6 to compress the spring in the outer sleeve 61 to a preset force value;

[0061] The adjusting device 4 is installed on the frame 1 and is used to drive the nut on the inner rod 62 to move. The nut is used to limit the inner rod 62 and the outer sleeve 61 to adjust the movement between the inner rod 62 and the outer sleeve 61 to a preset value.

[0062] In this embodiment, the outer sleeve 61 of the knock rod 6 is clamped by the quick clamping device 2. Since the inner rod 62 is arranged inside the outer sleeve 61 and a spring is arranged between the inner rod 62 and the outer sleeve 61, after the outer sleeve 61 is clamped by the quick clamping device 2, the inner rod 62 can still move relative to the outer sleeve 61. The spring can be compressed to a preset force value by the force calibration device 3 against the inner rod 62. However, considering the actual installation environment of the knock rod 6 on the keyboard, the compression amount of the spring needs to reach a preset value. Therefore, the position of the nut on the inner rod 62 is adjusted by the adjustment device 4 to meet the demand.

[0063] It should also be noted that the setting of the nut can limit the outer sleeve 61. Since the spring remains compressed, the outer sleeve 61 will maintain a tendency to move upward, and due to the setting of the nut, when the outer sleeve 61 abuts against the nut, it is limited by the nut, so that the spring remains at the required compression amount when the knock rod 6 is not operated. Figure 2 shown.

[0064] Exemplarily, the force measuring mechanism 32 is a force sensor (or also called a weight detection element, electronic scale).

[0065] Reference Figure 5 and attached Figure 6 As shown, in an exemplary embodiment, the adjustment device 4 includes:

[0066] A fixing assembly, mounted on the frame 1, for clamping and fixing the inner rod 62 of the knocking rod 6;

[0067] The action component is installed on the frame 1 and is used to cooperate with the fixing component to adjust the position of the nut.

[0068] It should be noted that the fixing assembly and the action assembly cooperate to simulate the process of loosening and tightening the nut. If only the action assembly is provided without the fixing assembly, when the nut is rotated, the inner rod 62 will be driven to move, so the inner rod 62 needs to be fixed by the fixing assembly first.

[0069] In an exemplary embodiment, the action component includes:

[0070] A second lifting mechanism 41 is installed on the frame 1;

[0071] A first rotating mechanism 42 is installed at the output end of the second lifting mechanism 41;

[0072] The first electric clamp 43 is installed at the output end of the rotating mechanism and is used to rotate the nut on the inner rod 62 driven by the first rotating mechanism 42. The nut includes a first nut 63 and a second nut 64 which are mutually limited.

[0073] The second electric clamp 44 is installed at the output end of the second lifting mechanism 41 , and is used to clamp the second nut 64 when the first electric clamp 43 rotates the first nut 63 .

[0074] It is worth noting that if only one nut is provided, the position is easily loosened. Therefore, two nuts are provided on the inner rod 62, namely a first nut 63 and a second nut 64. The second nut 64 is provided close to the outer sleeve 61 and can directly contact the outer sleeve 61. The first nut 63 is used to abut against the second nut 64 to limit the position.

[0075] In this embodiment, the second lifting mechanism 41 can drive the first rotating mechanism 42, the first electric clamping jaw 43 and the second electric clamping jaw 44 to perform lifting and lowering actions, so that the first electric clamping jaw 43 and the second electric clamping jaw 44 are aligned with the required clamping position. The first rotating mechanism 42 is used to drive the first electric clamping jaw 43 to rotate to loosen or tighten the nut.

[0076] When in use, after the first electric clamping jaw 43 and the second electric clamping jaw 44 are aligned with the corresponding nut through the action of the lifting mechanism, the second electric clamping jaw 44 clamps the second nut 64, the first electric clamping jaw 43 clamps the first nut 63, and then the first rotating mechanism 42 is actuated to loosen the first nut 63 to adjust the position of the second nut 64. Then, the first electric clamping jaw 43 is aligned with the second nut 64 to adjust the position of the second nut 64, and then the first nut 63 is adjusted so that the first nut 63 and the second nut 64 are butted against each other.

[0077] In an exemplary embodiment, the fixing assembly includes a third electric clamp 45 , which is mounted on the frame 1 , and is used to clamp the inner rod 62 when adjusting the position of the nut.

[0078] Exemplarily, the third electric clamp 45 clamps the inner rod 62 against one end of the force calibration device 3 .

[0079] Exemplarily, distance measuring sensors or the like may be provided on the first electric clamping jaw 43 , the second electric clamping jaw 44 and the third electric clamping jaw 45 , so as to accurately clamp the desired clamping position.

[0080] In an exemplary embodiment, the adjustment device 4 further includes a detection mechanism 46 , which is mounted on the frame 1 and is used to detect the position of the nut.

[0081] In this embodiment, the detection mechanism 46 is used to detect whether the nut is (or has reached) the desired position. If the nut is not in the desired position, the nut position needs to be adjusted. If it is in or has reached the desired position, no adjustment is required.

[0082] In an exemplary embodiment, the detection mechanism 46 includes a transverse movement component 461 and a detection sensor 462 for nut position detection. The transverse movement component 461 is installed on the frame 1 , and the output end of the transverse movement component 461 is connected to the detection sensor 462 .

[0083] It should be noted that since the keyboard strike rod force adjustment device has many overall parts, in order to avoid mutual interference in work, a transverse movement component 461 is set. The detection sensor 462 is only moved transversely to the required detection position when it is needed. When no detection is needed, the detection sensor 462 is retracted through the transverse movement component 461.

[0084] Exemplarily, the detection sensor 462 may be a photoelectric sensor or the like.

[0085] Reference Figure 3 and attached Figure 4 As shown, in an exemplary embodiment, the testing device 5 comprises:

[0086] A second rotating mechanism 501, the second rotating mechanism 501 is installed on the frame 1;

[0087] An eccentric assembly 502 is mounted on the output end of the second rotating mechanism 501 and is used to move eccentrically with the rotation of the second rotating mechanism 501;

[0088] The movable frame 503 cooperates with the eccentric assembly 502 and is connected to the quick clamping device 2 , and is used to convert the rotational motion of the eccentric assembly 502 into a linear reciprocating motion that drives the quick clamping device 2 .

[0089] Exemplarily, the left and right sides of the movable frame 503 are provided with limit blocks 222 for limiting the movable frame 503 , so that the movable frame 503 can only move up and down.

[0090] Exemplarily, the movable frame 503 is slidably matched with the frame 1 so that the movable frame 503 can only reciprocate in a straight line.

[0091] Exemplarily, the fixing seat 21 of the quick clamping device 2 is slidably matched with the frame 1, and since the movable frame 503 is fixedly connected to the fixing seat 21, the movable frame 503 can only make linear reciprocating motion along the sliding direction. In this embodiment, the setting of the testing device 5 is to simulate the action of tapping when using the keyboard to detect the tapping force of the tapping rod 6. The force calibration device 3 realizes the tapping force detection during the tapping process.

[0092] Exemplarily, the eccentric assembly 502 includes an eccentric wheel and other structures, and the configuration of the testing device 5 is to convert the rotational motion of the second rotating mechanism 501 into reciprocating motion through the eccentric assembly 502 and the movable frame 503 .

[0093] It should also be noted that the testing device 5 in the present application is not limited to the structure described in this embodiment, but can also be any other linear reciprocating motion mechanism as long as it can meet the requirements of the present application.

[0094] In an exemplary embodiment, the quick clamping device 2 comprises:

[0095] The fixing seat 21 is connected to the testing device 5. The fixing seat 21 is provided with a placement groove 211 for the outer sleeve 61 to be placed therein. The side of the placement groove 211 is provided with a placement opening for the outer sleeve 61 to be placed therein.

[0096] The locking mechanism is mounted on the fixing seat 21 and is used to lock the outer sleeve 61 in the placement groove.

[0097] Exemplarily, at least the left side, top side and bottom side of the placement groove are open to facilitate the placement of the outer sleeve 61. In order to facilitate the installation of the knock rod 6, a certain amount of remaining space is provided in the placement groove, and in order to prevent the knock rod 6 from escaping from the placement groove, a locking mechanism is provided to lock the outer sleeve 61 in the placement groove.

[0098] Exemplarily, the locking method of the locking mechanism may be jacking, pressing, tensioning, etc.

[0099] In an exemplary embodiment, the locking mechanism includes:

[0100] A locking action member 22, the locking action member 22 is rotatably mounted on the fixing seat 21;

[0101] The locking member 23 is mounted on the locking member 22 and is driven by the locking member 22 to move.

[0102] The elastic reset member 24 is disposed between the fixing seat 21 and the locking member 23, and is used to cooperate with the locking member 23 to switch the outer sleeve 61 between the locked and released states;

[0103] When the locking action member 22 abuts against the locking member 23 , the locking member 23 releases the outer sleeve 61 and the elastic return member 24 is compressed; when the locking action member 22 releases the locking member 23 , the locking member 23 actuates under the action of the elastic return member 24 and locks the outer sleeve 61 .

[0104] Exemplarily, a limiting groove 65 is provided on the lower and upper outer sides of the outer sleeve 61, the limiting groove 65 on the lower side abuts against the outer wall of the placement groove, and the limiting groove 65 on the upper side is used to extend into the locking piece 23, and the locking piece 23 moves upward until it squeezes the inner wall of the limiting groove 65, thereby achieving the locking of the knocking rod 6.

[0105] Exemplarily, the elastic return member 24 is a spring, which provides an upward elastic return force for the locking member 23 , and the locking action member 22 provides a downward movement force for the locking member 23 .

[0106] Reference Figure 5 As shown, in an exemplary embodiment, the locking member 22 includes a rotating shaft 221 , and a contact block 224 is disposed radially of the rotating shaft 221 . The contact block 224 rotates with the rotating shaft 221 to push the locking member 23 to operate.

[0107] Exemplarily, the contact block 224 is fixedly connected to the rotating shaft 221, and the contact block 224 is in a hemispherical shape at the contact portion with the locking member 23. When the contact block 224 presses against the locking member 23, the locking member 23 is pushed by the contact block 224, and when the contact block 224 is separated from the locking block, the locking member 23 is reset under the elastic force of the elastic reset member 24.

[0108] It should also be noted that the length of the contact block 224 extending from the rotating shaft 221 determines the travel range of the locking member 23. The contact block 224 can be replaced by an eccentric wheel.

[0109] In an exemplary embodiment, a first rotation position and a second rotation position are provided on the fixed seat 21; a channel for the rotating shaft 221 to pass through is opened in the locking member 23, and the contact block 224 extends into the channel along with the rotating shaft 221; a matching portion 231 for extending into the upper limit groove 65 of the outer sleeve 61 is provided on the locking member 23; when the rotating shaft 221 rotates to the first rotation position, the contact block abuts against the inner wall of the channel, so that the matching portion 231 on the locking member 23 is disengaged from the limit groove 65 on the outer sleeve 61; when the rotating shaft 221 rotates to the second rotation position, the contact block 224 is disengaged from the inner wall of the channel, and the locking member 23 extends into the limit groove 65 under the support of the elastic reset member 24.

[0110] Exemplarily, the locking member 23 can be slidably mounted on the fixing seat 21 along the length direction of the knocking rod 6 to increase the stability of the locking member 23 .

[0111] It should also be noted that the length and width of the channel must meet the dimensions of the rotating shaft 221 and the contact block 224 .

[0112] In an exemplary embodiment, the quick clamping device 2 further includes a limiting mechanism, which is installed on the locking action member 22 and is used to block the placement opening.

[0113] It should be noted that, in order to further prevent the knocking rod 6 from being separated from the placement groove, a limiting mechanism is provided to block the placement opening.

[0114] In an exemplary embodiment, the limiting mechanism includes a movable arm and a quick clamp, the movable arm is mounted on the locking action member 22, the quick clamp is mounted on the movable arm, and a blocking block for blocking the placement port is provided on the quick clamp.

[0115] In this embodiment, the movable arm is provided to facilitate adjustment of the position of the quick pressing clamp, and the quick pressing clamp is operated so that the blocking block blocks the placement groove.

[0116] In an exemplary embodiment, the locking action member 22 also includes a rotating handle 223 arranged on the rotating shaft 221, and the rotating handle 223 is provided with a limit block 222 for cooperating with the fixed seat 21, and the limit block 222 is provided with a first limit portion 2221 for cooperating with the first rotation position and a second limit portion 2222 for cooperating with the second rotation position.

[0117] It should be noted that the rotating handle 223 is provided to facilitate the rotation of the rotating shaft 221. The limiting block 222 is provided to facilitate the accurate switching of the rotating shaft 221 between the first rotating position and the second rotating position.

[0118] In an exemplary embodiment, magnetic elements for adsorbing the limit block 222 are disposed in the first rotation position and the second rotation position.

[0119] It is worth noting that the arrangement of the magnetic attraction member enables the limit block 222 to remain stationary after rotating to the corresponding rotation position, that is, the quick clamping device 2 can maintain the clamping state after clamping the knocking rod 6.

[0120] It should also be noted that the first lifting mechanism 31, the second lifting mechanism 41, the transverse movement assembly 461, etc. may all include a cylinder, an oil cylinder, etc., but in order to improve the accuracy, a screw mechanism is used in this embodiment.

[0121] Illustratively, the first rotating mechanism 42 and the second rotating mechanism 501 include motors and the like to achieve the rotating motion.

[0122] It should also be noted that in the present application, the rack 1 and the fixing seat 21 each include a plurality of parts, and the parts on the rack 1 do not move relative to each other, so they are collectively referred to as the rack 1. The parts in the fixing seat 21 do not move relative to each other, so they are collectively referred to as the fixing seat 21. However, it should also be noted that there is relative movement between the rack 1 and the fixing seat 21.

[0123] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A keyboard striking rod force adjustment device, characterized in that: include: frame, A quick clamping device, mounted on the frame, for clamping the outer sleeve of the striking rod; A force calibration device, the force calibration device comprising a first lifting mechanism mounted on a frame and a force measuring mechanism arranged at an output end of the first lifting mechanism, the first lifting mechanism being used to drive the force measuring mechanism to move so that the force measuring mechanism pushes the inner rod of the knocking rod to compress the spring in the outer sleeve to a preset force value; The adjusting device is installed on the frame and is used to drive the nut on the inner rod to move. The nut is used to limit the inner rod and the outer sleeve to adjust the movement between the inner rod and the outer sleeve to a preset value.

2. The keyboard striking rod force regulating device according to claim 1, characterized in that: The adjusting device comprises: A fixing assembly, mounted on the frame, for clamping and fixing the inner rod of the knocking rod; The action component is installed on the frame and is used to cooperate with the fixing component to adjust the position of the nut.

3. The keyboard striking rod force regulating device according to claim 2, characterized in that: The action components include: A second lifting mechanism is installed on the frame; A first rotating mechanism, mounted at an output end of the second lifting mechanism; A first electric clamp, mounted at the output end of the rotating mechanism, and used to rotate a nut on the inner rod driven by the first rotating mechanism, wherein the nut includes a first nut and a second nut which are mutually limited; The second electric clamp is installed at the output end of the second lifting mechanism, and is used for clamping the second nut when the first electric clamp rotates the first nut.

4. The keyboard striking rod force regulating device according to claim 2, characterized in that: The fixing assembly comprises a third electric clamping jaw, which is mounted on the frame and is used for clamping the inner rod.

5. The keyboard striking rod force regulating device according to claim 1, characterized in that: The adjusting device further comprises a detection mechanism, which is mounted on the frame and is used to detect the position of the nut.

6. The keyboard striking rod force regulating device according to claim 5, characterized in that: The detection mechanism includes a transverse movement component and a detection sensor for detecting the position of the nut. The transverse movement component is installed on the frame, and the output end of the transverse movement component is connected to the detection sensor.

7. The keyboard striking rod force regulating device according to claim 1, characterized in that: The keyboard tapping rod force adjustment device also includes a testing device for imitating keyboard tapping action, the testing device is installed on the frame, and the output end of the testing device is connected to the quick clamping device.

8. The keyboard striking rod force regulating device according to claim 7, characterized in that: The testing device comprises: a second rotating mechanism, the second rotating mechanism being mounted on the frame; an eccentric assembly, mounted on the output end of the second rotating mechanism, and configured to move eccentrically with the rotation of the second rotating mechanism; A movable frame cooperates with the eccentric assembly and is connected to the quick clamping device, and is used for converting the rotational motion of the eccentric assembly into a linear reciprocating motion that drives the quick clamping device.

9. The keyboard striking rod force regulating device according to claim 7, characterized in that: The quick clamping device comprises: A fixing seat connected to the testing device, the fixing seat being provided with a placement groove for placing the outer sleeve, and a placement opening for placing the outer sleeve on a side of the placement groove; The locking mechanism is installed on the fixing seat and is used to lock the outer sleeve in the placement groove.

10. The keyboard striking rod force regulating device according to claim 9, characterized in that: The locking mechanism comprises: A locking action piece, the locking action piece is rotatably mounted on the fixing seat; A locking member, mounted on the locking action member, driven by the locking action member; an elastic reset member, arranged between the fixing seat and the locking member, for cooperating with the locking member to switch the state between locking and releasing the outer sleeve; When the locking action piece abuts against the locking piece, the locking piece releases the outer sleeve and the elastic return piece is compressed; when the locking action piece releases the locking piece, the locking piece is actuated and locks the outer sleeve under the action of the elastic return piece.

11. The keyboard striking rod force regulating device according to claim 10, characterized in that: The locking element comprises a rotating shaft, and a contact block is arranged in the radial direction of the rotating shaft. The contact block rotates with the rotating shaft to push the locking element to operate.

12. The keyboard striking rod force regulating device according to claim 11, characterized in that: The fixing seat is provided with a first rotation position and a second rotation position; a channel for the rotating shaft to pass through is opened in the locking member, and the contact block extends into the channel along with the rotating shaft; the locking member is provided with a matching portion for extending into the upper limit groove of the outer sleeve; when the rotating shaft rotates to the first rotation position, the contact block abuts against the inner wall of the channel, so that the matching portion on the locking member is disengaged from the limiting groove on the outer sleeve; when the rotating shaft rotates to the second rotation position, the contact block is disengaged from the inner wall of the channel, and extends into the limiting groove under the support of the elastic reset member of the locking member.

13. The keyboard striking rod force regulating device according to claim 10, characterized in that: The quick clamping device also includes a limiting mechanism, which is installed on the locking action piece and is used to block the placement opening.

14. The keyboard striking rod force regulating device according to claim 13, characterized in that: The limiting mechanism comprises a movable arm and a quick pressing clamp, wherein the movable arm is mounted on the locking action member, the quick pressing clamp is mounted on the movable arm, and a blocking block for blocking the placement opening is arranged on the quick pressing clamp.

15. The keyboard striking rod force regulating device according to claim 12, characterized in that: The locking action piece also includes a rotating handle arranged on the rotating shaft, the rotating handle is provided with a limit block for cooperating with the fixed seat to limit the position, and the limit block is provided with a first limit portion for cooperating with the first rotation position and a second limit portion for cooperating with the second rotation position.

16. The keyboard striking rod force regulating device according to claim 15, characterized in that: Magnetic suction parts for adsorbing the limit block are arranged in the first rotation position and the second rotation position.

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