A keying machine

Abstract

The application discloses a keying machine, which comprises a rack, a keyboard conveying device, a support and a pressing plate. The keyboard conveying device comprises a shell, a first conveying part and a second conveying part. The first conveying part comprises a first conveying belt and a first lifting platform. The second conveying part comprises a second conveying belt and a second lifting platform. The support comprises a first platform and a second platform. A plurality of test heads are arranged on the first platform. The second platform is slidably connected with the first platform. In the application, each test head can move along the first platform to adapt to different key positions on the keyboard. The first platform can move relative to the second platform to further adjust the positions of the test heads and improve the test efficiency. The carrier is conveyed to the position of the second lifting platform through the first conveying belt and the second conveying belt. The second lifting platform is lifted to make the carrier separate from the second conveying belt and reach the test position, thereby simplifying the operation process and improving the use efficiency (UPH) and service life of the conveying belt.

Description

Technical Field

[0001] This invention relates to the field of keyboard testing, and in particular to a keystroke machine. Background Technology

[0002] Keyboard testing typically includes testing the function and force resistance of each key, and recording whether a key malfunctions. Existing keyboard testing equipment struggles to ensure the test head accurately strikes each key, resulting in low testing efficiency. Furthermore, testing can only be performed one keyboard at a time, further impacting efficiency. Additionally, transporting keyboards via a fixed fixture prevents large-scale transfers, requiring frequent manual starting and stopping of the moving device to ensure keyboards enter the keypress machine at intervals. This complex operation further reduces testing efficiency and shortens the lifespan of the moving device. Summary of the Invention

[0003] To solve at least one of the above-mentioned technical problems, the present invention provides a keypad machine, the technical solution of which is as follows:

[0004] This invention provides a keying machine, comprising a frame, a keyboard transmission device, a support, and a pressure plate. The keyboard transmission device is disposed inside the frame and includes a housing, a first conveying section, and a second conveying section. The housing includes a first sidewall and a second sidewall, which are vertically arranged. The first conveying section is located between the first and second sidewalls and includes a first conveyor belt and a first lifting platform. Two first conveyor belts are provided, each located on the first and second sidewalls respectively. The first lifting platform is located between the two first conveyor belts and its top height is adjustable. The first lifting platform is used to abut against the bottom of a carrier. The first lifting platforms are spaced apart, and a connecting plate is provided on the top of each first lifting platform, connecting them together. The first end of the second conveying section is located at the end of the first conveying section and is situated on the first sidewall. Between the second sidewall and the second conveying section, the second conveying section includes a second conveyor belt and a second lifting platform. The second conveyor belt is equipped with a second pulley, and two second conveyor belts are spaced apart. The two second conveyor belts are respectively located on the first sidewall and the second sidewall. The second lifting platform is located between the two second conveyor belts, and the top height of the second lifting platform can be raised or lowered. The second lifting platform is used to abut against the bottom of the carrier. The second lifting platforms are spaced apart. The bracket includes a first platform and a second platform. The first platform is located above the keyboard transmission device, and multiple test heads are arranged side-by-side below it. The second platform is located above the keyboard transmission device and is slidably connected to the first platform. The pressure plate is connected to the second platform, located below the second platform and above the second lifting platform. The pressure plate has through holes, the position and shape of which correspond to the keys on the keyboard.

[0005] The embodiments of the present invention have at least the following beneficial effects: In the present invention, each test head can move along the first platform to adapt to different key positions on the keyboard; the first platform can move relative to the second platform to further adjust the position of each test head and improve testing efficiency; the carrier enters the range of the keyboard transmission device from the beginning of the first conveyor section, is transported to the end of the first conveyor section by the first conveyor belt, and then transported to the position of the second lifting platform by the second conveyor belt. The second lifting platform rises to allow the carrier and the keyboard to detach from the second conveyor belt and reach the testing position; subsequently, the keyboard to be tested is transported to the position of the first lifting platform by the first conveyor belt. The first lifting platform rises to allow the keyboard to be tested, along with the corresponding carrier, to detach from the first conveyor belt and be in the testing position; after the keyboard test is completed, the second lifting platform descends to allow the keyboard to contact the second conveyor belt and be transported out of the range of the keyboard transmission device; the first lifting platform descends to allow the keyboard to be tested to be transported to the testing position by the first conveyor belt and the second conveyor belt. The keyboards to be tested are tested one by one in this cycle, improving work efficiency. The first and second conveyor belts do not need to be stopped, simplifying the operation process, reducing the workload of the staff, and improving the utilization efficiency (UPH) and service life of the first and second conveyor belts.

[0006] In some embodiments of the present invention, the first pulley includes a first tensioning pulley, the first tensioning pulley being close to the beginning end of the first conveying section, the center of the first tensioning pulley being offset from the line connecting two adjacent first pulleys, the first conveyor belt being disposed around the first tensioning pulley, and the first conveyor belt bending at the first tensioning pulley; the second pulley includes a second tensioning pulley, the second tensioning pulley being close to the end of the second conveying section, the center of the second tensioning pulley being offset from the line connecting two adjacent second pulleys, the second conveyor belt being disposed around the second tensioning pulley, and the second conveyor belt bending at the second tensioning pulley.

[0007] In some embodiments of the present invention, each of the first lifting platforms is provided with a first support structure at its top, the width of the first support structure being greater than the distance between the two first conveyor belts, and the top of the first support structure being able to abut against the bottom of the carrier; the second lifting platform is provided with a second support structure at its top, the width of the second support structure being greater than the distance between the two second conveyor belts, and the second support structure being provided with a hollow portion, through which the carrier can pass.

[0008] In some embodiments of the present invention, the first pulley includes a first clearance wheel, the first clearance wheel is located at the bottom of the first support structure, the first conveyor belt is arranged to bypass the first clearance wheel, and the first conveyor belt bends at the position of the first clearance wheel; the second pulley includes a second clearance wheel, the second clearance wheel is located at the bottom of the second support structure, the second conveyor belt is arranged to bypass the second clearance wheel, and the second conveyor belt bends at the position of the second clearance wheel.

[0009] In some embodiments of the present invention, the first pulley includes a first mounting adjustment wheel, which is connected to the housing by a screw and is threaded to be close to or away from the beginning end of the first conveying part; the second pulley includes a second mounting adjustment wheel, which is connected to the housing by a screw and is threaded to be close to or away from the end end of the second conveying part.

[0010] In some embodiments of the present invention, a plurality of first lead screws are arranged in parallel on the first platform, the number of first lead screws being the same as the number of test heads. Each first lead screw is provided with a first connecting structure, and the first connecting structure is provided with a hollow portion. The inner wall of each hollow portion is provided with a third internal thread, and each third internal thread respectively engages with each first lead screw. A plurality of hollow structures are arranged in parallel on the first platform, and each first connecting structure passes through each hollow structure and is respectively connected to each test head.

[0011] In some embodiments of the present invention, a plurality of first slide rails are arranged side by side at the bottom end of the first platform, and a first groove is provided on each of the first connecting structures, and each of the first grooves is connected to each of the first slide rails.

[0012] In some embodiments of the present invention, the bracket further includes a back plate, an extension plate is provided at the bottom of the back plate, the extension plate extends horizontally and is connected to the second platform, a second lead screw is provided on the back plate, the second lead screw is rotatable on the back plate, a second connecting structure is provided on the second lead screw and is connected to the first platform, a second slide rail is provided on the back plate, a second groove is provided on the first platform and is connected to the second slide rail.

[0013] In some embodiments of the present invention, a third slide rail is provided on the top of the second platform, a third groove is provided on the bottom of the extension plate, the third groove is connected to the third slide rail, the second platform is hollow, and the first connecting structure can pass through the second platform.

[0014] In some embodiments of the present invention, a width adjustment assembly is provided on the housing. The width adjustment assembly is used to adjust the distance between the first sidewall and the second sidewall. The width adjustment assembly includes a positioning rod and a moving component. The positioning rod passes through the first sidewall and the second sidewall. The portion of the positioning rod near the first sidewall is provided with a first external thread, and the portion of the positioning rod near the second sidewall is provided with a second external thread. The directions of the first external thread and the second external thread are opposite. Two moving components are provided, and the two moving components are respectively provided on the first sidewall and the second sidewall. The two moving components are respectively provided with a first internal thread and a second internal thread. The first internal thread engages with the first external thread, and the second internal thread engages with the second external thread.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the key-pressing machine of the present invention;

[0018] Figure 2 This is a schematic diagram of the key-pressing machine structure for removing the frame according to the present invention;

[0019] Figure 3 This is a schematic diagram of the keyboard transmission device in the keypad of the present invention;

[0020] Figure 4 This is a front view of the keyboard transmission device in the keypad of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the first conveyor belt in the keying machine of the present invention;

[0022] Figure 6 This is a schematic diagram of the width adjustment component in the keypress machine of the present invention;

[0023] Figure 7 This is a schematic diagram of the structure of the first platform in the keypad of the present invention;

[0024] Figure 8 This is a schematic diagram of the back plate structure in the keypad of the present invention;

[0025] Figure 9 This is a schematic diagram of the pressure plate in the keypress machine of the present invention.

[0026] Figure label:

[0027] 101. Rack

[0028] 201. First conveyor belt; 202. First lifting platform; 203. Second conveyor belt; 204. Second lifting platform; 205. Connecting plate;

[0029] 301. First tensioning wheel; 302. First clearance wheel; 303. First mounting adjustment wheel; 304. Width adjustment assembly; 305. Positioning rod; 306. Moving part;

[0030] 401. First platform; 402. Second platform; 403. Test head;

[0031] 501. First lead screw; 502. First connecting structure; 503. First slide rail; 504. Extension plate; 505. Second lead screw; 506. Second slide rail; 507. Third slide rail; 508. Pressure plate. Detailed Implementation

[0032] This section will combine Figures 1 to 9 Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of this invention, it should be understood that the terms "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Features defined with "first" and "second" are used to distinguish feature names and do not have special meanings. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] This invention provides a keystroke machine, which includes a frame, a keyboard transmission device, a support, and a pressure plate. Figure 1 As shown, the frame 101 is mounted on the ground, and the keyboard transmission device, support, and pressure plate 508 are located inside the frame 101. Furthermore, the frame 101 is equipped with indicator lights that emit different colors to indicate to the operator whether there is any abnormality in the current working status of the keypad. The frame 101 is equipped with a display and an operating keyboard. The operating keyboard is used to input commands to control the start or stop of the keypad, and the display shows the current keyboard test items and the working status of the keypad. Understandably, the bottom of the frame 101 is equipped with casters and feet for easy movement and support.

[0036] like Figures 3 to 4 As shown, the keyboard transmission device includes a housing, a first conveying section, and a second conveying section. The housing is hollow and includes a base, a first sidewall, and a second sidewall. The first sidewall and the second sidewall are disposed on the base, arranged side by side with a gap, and the first sidewall and the second sidewall are arranged vertically.

[0037] The first conveying section is located between the first sidewall and the second sidewall, that is, inside the housing. The first conveying section includes a first conveyor belt 201. The carrier with the keyboard to be tested is mounted abuts against the first conveyor belt 201. It can be understood that the part of the first conveyor belt 201 that moves to the top abuts against the bottom of the carrier. Due to the friction between the first conveyor belt 201 and the carrier, the carrier is gradually conveyed from the beginning to the end of the first conveying section.

[0038] Furthermore, a first pulley is provided on the first conveyor belt 201. The first pulley is used to define the position of the first conveyor belt 201 and also to drive the first conveyor belt 201 to move. Specifically, there is friction between the first pulley and the first conveyor belt 201. The driving pulley in the first pulley rotates, driving the first conveyor belt 201 to move. The first conveyor belt 201 drives the driven pulley in the first pulley to rotate through friction, so that the first conveyor belt 201 can smoothly carry out the carrier transportation work.

[0039] A set of first pulleys is provided on the first side wall, and a set of first pulleys is also provided on the second side wall. Corresponding to the first pulleys, two first conveyor belts 201 are provided, which are arranged side by side and there is a certain distance between the two first conveyor belts 201. The distance between the two first conveyor belts 201 corresponds to the width of the carrier, ensuring that the bottom edges at both ends of the carrier can be placed on the two first conveyor belts 201 respectively. At the same time, it avoids interference between the carrier and the first or second side wall, ensuring smooth carrier transportation.

[0040] The first conveying unit also includes a first lifting platform 202, which is located between two first conveyor belts 201. The top height of the first lifting platform 202 can be raised or lowered. When there is no keyboard at the test position, the top of the first lifting platform 202 is lowered to ensure that the carrier can move out of the range of the first conveyor belts 201 and enter the test position. When there is a keyboard at the test position, in order to prevent the subsequent keyboard to be tested from entering the test position again and causing equipment or keyboard damage, when the carrier moves to the position of the first lifting platform 202, the top of the first lifting platform 202 is raised to support the carrier and allow the carrier to detach from the first conveyor belts 201. This process does not require manual stopping of the movement of the first conveyor belts 201, reducing the workload of the staff. At the same time, it avoids frequent sudden stops and starts of the first conveyor belts 201, thus extending the service life of the first conveyor belts 201.

[0041] Understandably, at least two first lifting platforms 202 are provided, spaced apart, to support the vehicle at multiple locations on its underside, thereby improving the stability of the vehicle when it is in the test position. Each first lifting platform 202 has a connecting plate 205 at its top, which connects to the top of each platform. The connecting plate 205 increases the contact area between the first lifting platform 202 and the vehicle, further enhancing the stability of the vehicle when it is in the test position.

[0042] The second conveying section is located between the first side wall and the second side wall. The first end of the second conveying section is located at the end of the first conveying section, that is, the vehicle leaving the first conveying section can enter the range of the second conveying section. The second conveying section includes a second conveyor belt 203. The vehicle with the keyboard to be tested is mounted abutted against the second conveyor belt 203. The part of the second conveyor belt 203 that moves to the top abuts against the bottom of the vehicle.

[0043] Furthermore, corresponding to the first conveyor belt 201, the second conveyor belt 203 is provided with a second pulley. The second pulley is used to limit the position of the second conveyor belt 203, and at the same time, the second pulley is also used to drive the second conveyor belt 203 to move.

[0044] A set of second pulleys is provided on the first side wall, and a set of second pulleys is also provided on the second side wall. It can be understood that there are two second conveyor belts 203, which are arranged side by side and there is a certain distance between them. The distance between the two second conveyor belts 203 corresponds to the width of the carrier, ensuring that the bottom edges at both ends of the carrier can be placed on the two second conveyor belts 203 respectively, while avoiding interference between the carrier and the first or second side wall.

[0045] The second conveying unit also includes a second lifting platform 204, which is located between the two second conveyor belts 203. The top height of the second lifting platform 204 can be raised or lowered. When the keyboard is not present at the test position, the top of the second lifting platform 204 is lowered to ensure that the carrier can move to the top of the second lifting platform 204. When the carrier moves to the top of the second lifting platform 204, the top height of the second lifting platform 204 is raised to transport the carrier to the test position. This process does not require manual stopping of the movement of the second conveyor belts 203, reducing the workload of the workers. At the same time, it avoids frequent sudden stops and starts of the second conveyor belts 203, extending their service life.

[0046] Understandably, at least two second lifting platforms 204 are provided, with each second lifting platform 204 spaced apart, to support the vehicle at multiple locations on the bottom of the vehicle, thereby improving the stability of the vehicle when it is in the position to be tested.

[0047] In some examples, a first support structure is provided on the top of the first lifting platform 202. Since the distance between the first and second sidewalls is adjustable, to ensure the stability of the first support structure, it can accommodate the maximum distance between the first and second sidewalls, and the width of the first support structure is greater than the distance between the two first conveyor belts 201. To ensure the adaptability of the first and second sidewalls to the first support structure, a clearance structure is provided at a corresponding position on the first sidewall, and a clearance structure is provided at a corresponding position on the second sidewall. Furthermore, the top of the first support structure abuts against the bottom of the carrier.

[0048] A second support structure is provided on the top of the second lifting platform 204. To ensure the stability of the second support structure, it can accommodate the maximum distance between the first and second sidewalls, and its width is greater than the distance between the two second conveyor belts 203. To ensure the compatibility of the first and second sidewalls with the second support structure, clearance structures are provided at corresponding positions on the first and second sidewalls. Furthermore, the second support structure has a perforated section, through which a carrier removed from the first conveyor section can pass and be lifted along with the second lifting platform 204.

[0049] In some examples, the first lifting platform 202 includes a first pneumatic rod, and the second lifting platform 204 includes a second pneumatic rod. The first or second pneumatic rod extends or retracts by air pressure to change the height of the first or second support structure. It is understood that the first pneumatic rod is located at the bottom of the first support structure, and the second pneumatic rod is located at the bottom of the second support structure.

[0050] like Figure 5 As shown, in some examples, the first pulley includes a first tension pulley 301, which is located near the beginning of the first conveyor section. The center of the first tension pulley 301 is offset from the line connecting two adjacent first pulleys. When the first conveyor belt 201 passes around the first tension pulley 301 and the adjacent first pulley, the first conveyor belt 201 bends at the position of the first tension pulley 301, ensuring that the first conveyor belt 201 is taut and improving the conveying accuracy of the first conveyor belt 201. The second pulley includes a second tension pulley, which is located near the end of the second conveyor section and causes the second conveyor belt 203 to bend at the position of the second tension pulley.

[0051] In some examples, the first pulley also includes first avoidance wheels 302, the number of which is equal to the number of first support structures, and the first avoidance wheels 302 are located at the bottom of the first support structures. When the first conveyor belt 201 passes around the first avoidance wheels 302 and two adjacent first pulleys, the first conveyor belt 201 bends at the position of the first avoidance wheels 302, thereby avoiding the wider first support structure and preventing interference between the first support structure and the first conveyor belt 201 during lifting. The second pulley also includes second avoidance wheels, the number of which is equal to the number of second support structures, and the second avoidance wheels are located at the bottom of the second support structure, thereby avoiding the wider second support structure.

[0052] In some examples, the first pulley also includes a first mounting adjustment wheel 303. The relative position of the first mounting adjustment wheel 303 and the housing is adjustable. The first mounting adjustment wheel 303 is connected to the housing via a screw, and the second mounting adjustment wheel can move by rotating the screw. When the first mounting adjustment wheel 303 moves towards the end of the first conveying section, the first conveyor belt 201 slackens. This facilitates the removal of the first conveyor belt 201 for maintenance or replacement. When the first mounting adjustment wheel 303 moves towards the beginning of the first conveying section, the first conveyor belt 201 is further tensioned, improving the conveying accuracy of the first conveyor belt 201. The second pulley also includes a second mounting adjustment wheel. When the second mounting adjustment wheel moves towards the beginning of the second conveying section, the first conveyor belt 201 slackens. When the second mounting adjustment wheel moves towards the end of the second conveying section, the second pulley is further tensioned, improving the conveying accuracy of the second conveyor belt 203.

[0053] like Figure 6 As shown, in some examples, the housing is provided with a width adjustment component 304, which is used to adjust the distance between the first sidewall and the second sidewall.

[0054] In some examples, the width adjustment assembly 304 includes a positioning rod 305 and a moving part 306. The positioning rod 305 passes through the first sidewall and the second sidewall, and is rotatably connected to both the first and second sidewalls. Further, the portion of the positioning rod 305 near the first sidewall has a first external thread, and the portion near the second sidewall has a second external thread; the first and second external threads have opposite thread directions. Two moving parts 306 are provided, corresponding to the first and second sidewalls respectively. The interiors of the two moving parts 306 have a first internal thread and a second internal thread, respectively. The first internal thread engages with the first external thread, and the second internal thread engages with the second external thread. By rotating the positioning rod 305, the two moving parts 306 can move in opposite directions, i.e., move closer to or further away from each other. The two moving parts 306 are connected to the first and second sidewalls respectively, so that the first or second sidewall moves closer to or further away from each other.

[0055] Specifically, one end of the positioning rod 305 is provided with an adjustment handle. The operator can rotate the positioning rod 305 by manually cranking the adjustment handle, thereby changing the distance between the first side wall and the second side wall.

[0056] In some examples, a blocking component is provided at the end of the first conveyor section, and a blocking component is also provided at the end of the second conveyor section. When a carrier along with a keyboard already exists at the test position, the blocking component at the end of the first conveyor section is used to prevent subsequent keyboards to be tested from entering the test position. When the carrier along with the keyboard reaches the top of the second support structure, the blocking component at the end of the second conveyor section is used to prevent the carrier from moving forward, facilitating the delivery of the keyboard into the test position.

[0057] Furthermore, the blocking assembly includes a third pneumatic rod located at the bottom of the blocking assembly, used to raise or lower the top height of the blocking assembly. When the blocking assembly is in operation, the third pneumatic rod extends; when the blocking assembly is not in operation, the third pneumatic rod retracts.

[0058] In some examples, the blocking assembly also includes a roller located on top of the blocking assembly. When the blocking assembly is not in operation, to prevent the top of the blocking assembly from contacting the vehicle and obstructing its movement, the roller rests against the bottom of the vehicle and rotates as the vehicle moves, replacing sliding friction with rolling friction.

[0059] like Figure 2As shown, in some examples, the keyboard testing component is located within the support frame, meaning the testing position is within the support frame's range. To ensure the second lifting platform 204 can transport the keyboard under test to the testing position, the height of the top of the support frame is greater than the height of the top of the keyboard transmission device, and the keyboard transmission device is located within the support frame. The support frame includes a first platform 401 and a second platform 402. The first platform 401 is located above the keyboard transmission device and supports the test head 403. The test head 403 can extend and retract vertically to press or release keys on the keyboard for testing. Since the testing position is below the first platform 401, the test head 403 is correspondingly located below the first platform 401. Furthermore, since the keyboard has a certain width, to improve testing efficiency, two sets of test heads 403 are provided, each set containing multiple test heads 403, with the two sets of test heads 403 located on opposite sides of the keyboard. The second platform 402 is located above the keyboard transmission device, and the first platform 401 can slide on the second platform 402 to adjust the position of the test head 403, improving testing accuracy.

[0060] Specifically, two supports are arranged side by side inside the rack 101, and correspondingly, two keyboard transmission devices are arranged side by side, which enables two keyboards under test to be tested simultaneously, further improving work efficiency and adapting to large-scale testing.

[0061] like Figure 7 As shown, in some examples, multiple first lead screws 501 are arranged side by side on the first platform 401. The first lead screws 501 are used to drive the test head 403 to move. It can be understood that the number of first lead screws 501 is equal to the number of test heads 403. Since there are two sets of test heads 403, and the two sets of test heads 403 are symmetrical to each other, there are also two sets of first lead screws 501. Each first lead screw 501 in one set is arranged approximately coaxially with each first lead screw 501 in the other set, and each first lead screw 501 can rotate on the first platform 401.

[0062] Each first lead screw 501 is provided with a first connecting structure 502. This connecting structure acts as a transmission component, connecting the first lead screw 501 to the corresponding test head 403. It is understood that the number of first connecting structures 502 is equal to the number of test heads 403. Specifically, each first connecting structure 502 has a hollow portion, and the inner wall of the hollow portion has a third internal thread that meshes with the first lead screw 501. When the first lead screw 501 rotates, the first connecting structure 502 converts the rotational motion into linear motion through the threaded connection, thereby causing the test head 403 to move along with it, aligning the test head 403 with the keys of the keyboard to be tested.

[0063] Furthermore, each first lead screw 501 is located at the top of the first platform 401, and each test head 403 is located at the bottom of the first platform 401. In order to connect the first lead screw 501 with the test head 403, multiple hollow structures are provided on the first platform 401. The first connecting structure 502 passes through each hollow structure respectively. Since the first connecting structure 502 can move, the hollow structure is set along the travel path of the first connecting structure 502.

[0064] In some examples, the first lead screw 501 drives the first connecting structure 502 by rotation. When the friction between the first lead screw 501 and the hollow part is large, the first lead screw 501 will cause the first connecting structure 502 to rotate slightly, resulting in a deviation between the test head 403 and the key position of the keyboard under test, which is not conducive to the testing work. Therefore, multiple first slide rails 503 are arranged side by side at the bottom of the first platform 401, and each first connecting structure 502 is provided with a first groove. Each first groove is connected to each first slide rail 503 to ensure that each first connecting structure 502 moves linearly.

[0065] like Figure 8 As shown, in some examples, the support also includes a back plate connected to the first platform 401 to facilitate multi-degree-of-freedom movement of the first platform 401. Further, an extension plate 504 is provided at the bottom of the back plate. Since the second platform 402 is horizontally positioned, the back plate extends horizontally and is connected to the second platform 402 via the extension plate 504. A second lead screw 505 is provided on the back plate, vertically positioned and rotatable on the back plate. A second connecting structure is provided on the second lead screw 505, allowing it to move along the lead screw 505 during rotation. The second connecting structure is connected to the first platform 401, meaning the height of the first platform 401 relative to the back plate can be adjusted. Specifically, to further limit the linear movement of the first platform 401, a second slide rail 506 is provided on the back plate, and a second groove is provided on the first platform 401. The second groove is connected to the second slide rail 506. Two second slide rails 506 are provided, and correspondingly, two second grooves are provided.

[0066] In some examples, the top of the second platform 402 is provided with a third slide rail 507, and the bottom of the extension plate 504 is provided with a third groove. The third groove is connected to the third slide rail 507, so that the first platform 401 together with the test head 403 can move relative to the second platform 402, and further adjust the position of the test head 403 to adapt to the specific position of the keyboard.

[0067] Furthermore, since the test position is below the second platform 402, in order to ensure that the test head 403 can reach the test position, the second platform 402 is hollow, and the first connecting structure 502 can pass through the second platform 402.

[0068] like Figure 9 As shown, in some examples, the keystroke machine also includes a pressure plate 508. The pressure plate 508 is in the testing position, that is, below the second platform 402 and above the second lifting platform 204. The pressure plate 508 has multiple through holes, the shape and position of which correspond to the shape and position of each key on the keyboard. After the test head 403 passes through the through holes, it can accurately reach the key position on the keyboard. When the test head 403 is blocked by the pressure plate 508, its position needs further adjustment to ensure the effectiveness of the test and improve testing efficiency.

[0069] In the description of this specification, the use of terms such as "an embodiment," "some examples," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0070] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A keyer, characterized in that, include: frame; A keyboard transmission device is disposed inside the frame. The keyboard transmission device includes a housing, a first conveying section, and a second conveying section. The housing includes a first sidewall and a second sidewall, which are vertically arranged. The first conveying section is located between the first and second sidewalls. The first conveying section includes a first conveyor belt and a first lifting platform. Two first conveyor belts are provided, each positioned on one of the first and second sidewalls respectively. The first lifting platform is located between the two first conveyor belts. The top height of the first lifting platform can be raised or lowered. The first lifting platform is used to abut against the bottom of the carrier. The first lifting platforms are spaced apart, and the top of the first lifting platform is provided with a connecting plate. The first lifting platforms are connected through the connecting plate. The first end of the second conveying part is located at the end of the first conveying part. The second conveying part is located between the first side wall and the second side wall. The second conveying part includes a second conveyor belt and a second lifting platform. The second conveyor belt is provided with a second pulley. Two second conveyor belts are spaced apart. The two second conveyor belts are respectively provided on the first side wall and the second side wall. The second lifting platform is located between the two second conveyor belts. The top height of the second lifting platform can be raised or lowered. The second lifting platform is used to abut against the bottom of the vehicle. The second lifting platforms are spaced apart. The bracket includes a first platform and a second platform. The first platform is located above the keyboard transmission device. Multiple test heads are arranged side by side on the first platform and located below the first platform. The second platform is located above the keyboard transmission device and is slidably connected to the first platform. A pressure plate is connected to the second platform. The pressure plate is located below the second platform and above the second lifting platform. The pressure plate is provided with through holes, the position and shape of which correspond to the keys on the keyboard.

2. The keyer according to claim 1, characterized in that The first pulley includes a first tensioning pulley, which is located near the beginning of the first conveying section. The center of the first tensioning pulley is offset from the line connecting two adjacent first pulleys. The first conveyor belt is arranged around the first tensioning pulley and bends at the first tensioning pulley. The second pulley includes a second tensioning pulley, which is located near the end of the second conveying section. The center of the second tensioning pulley is offset from the line connecting two adjacent second pulleys. The second conveyor belt is arranged around the second tensioning pulley and bends at the second tensioning pulley.

3. The keyer of claim 1, wherein Each of the first lifting platforms is provided with a first support structure at its top. The width of the first support structure is greater than the distance between the two first conveyor belts, and the top of the first support structure can abut against the bottom of the vehicle. The second lifting platform top is provided with a second support structure, the width of the second support structure is greater than the distance between the two second conveying belts, and the second support structure is provided with a hollow part through which the carrier can pass.

4. The keyer according to claim 3, wherein The first pulley comprises a first avoiding wheel at the bottom of the first support structure, the first conveying belt is arranged around the first avoiding wheel and is bent at the position of the first avoiding wheel, and the second pulley comprises a second avoiding wheel at the bottom of the second support structure, the second conveying belt is arranged around the second avoiding wheel and is bent at the position of the second avoiding wheel.

5. The keyer of claim 1, wherein, The first pulley comprises a first mounting adjusting wheel connected to the shell by a screw rod, and the first mounting adjusting wheel can be close to or away from the first end of the first conveying part through threaded connection; the second pulley comprises a second mounting adjusting wheel connected to the shell by a screw rod, and the second mounting adjusting wheel can be close to or away from the end of the second conveying part through threaded connection.

6. The keyer of claim 1, wherein The first platform is provided with a plurality of first lead screws in parallel, the number of the first lead screws is the same as the number of the test heads, each first lead screw is provided with a first connecting structure, the first connecting structure is provided with a hollow part, the inner wall of each hollow part is provided with a third internal thread, each third internal thread is engaged with each first lead screw, the first platform is provided with a plurality of hollow structures in parallel, each first connecting structure passes through each hollow structure, and each first connecting structure connects each test head.

7. The keyer according to claim 6, wherein The bottom end of the first platform is provided with a plurality of first sliding rails in parallel, each first connecting structure is provided with a first groove, and each first groove is connected with each first sliding rail.

8. The keyer of claim 6, wherein, The support further comprises a back plate, the bottom of the back plate is provided with an extension plate, the extension plate extends horizontally, the extension plate is connected with the second platform, the back plate is provided with a second lead screw, the second lead screw can rotate on the back plate, the second lead screw is provided with a second connecting structure, the second connecting structure is connected with the first platform, the back plate is provided with a second sliding rail, the first platform is provided with a second groove, and the second groove is connected with the second sliding rail.

9. The keyer of claim 8, wherein, The top of the second platform is provided with a third sliding rail, the bottom of the extension plate is provided with a third groove, the third groove is connected with the third sliding rail, the second platform is hollow, and the first connecting structure can pass through the second platform.

10. The keyer of claim 1, wherein, The shell is provided with a width adjusting assembly for adjusting the distance between the first side wall and the second side wall, the width adjusting assembly comprising a positioning rod, the positioning rod passing through the first side wall and the second side wall, a portion of the positioning rod close to the first side wall being provided with a first external thread, a portion of the positioning rod close to the second side wall being provided with a second external thread, the first external thread being opposite in direction to the second external thread, the width adjusting assembly further comprising two moving parts, the two moving parts being respectively provided on the first side wall and the second side wall, the two moving parts being respectively provided with a first internal thread and a second internal thread, the first internal thread being engaged with the first external thread, and the second internal thread being engaged with the second external thread.

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