CN115480124A

CN115480124A - Key machine

Info

Publication number: CN115480124A
Application number: CN202211089314.4A
Authority: CN
Inventors: 张琛星; 黄万演; 祝国昌
Original assignee: Optofidelity High Tech Zhuhai Ltd
Current assignee: Optofidelity High Tech Zhuhai Ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2022-12-16

Abstract

The invention discloses a key machine, which comprises a rack, a keyboard transmission device, a bracket and a pressing plate, wherein the rack is provided with a plurality of grooves; the keyboard transmission device comprises a shell, a first conveying part and a second conveying part, wherein the first conveying part comprises a first conveying belt and a first lifting platform, and the second conveying part comprises a second conveying belt and a second lifting platform; the support includes first platform, second platform, is provided with a plurality of test heads on the first platform, second platform and first platform sliding connection. In the 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, so that the positions of the test heads are further adjusted, and the test efficiency is improved; the carrier is transmitted 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 enable the carrier to be separated from the second conveying belt and reach a testing position, the operation process is simplified, the use efficiency UPH of the conveying belt is improved, and the service life of the conveying belt is prolonged.

Description

Key machine

Technical Field

The invention relates to the field of keyboard testing, in particular to a key machine.

Background

The content of the keyboard test generally includes: testing the function and bearing strength of each key of the keyboard, recording whether the key is invalid or not, and the like. The existing keyboard test equipment is difficult to ensure that a test head accurately strikes each key of a keyboard, the test efficiency is low, and the keyboards to be tested can only be tested one by one, so that the test efficiency is also influenced. Meanwhile, when the keyboard to be tested is conveyed through the movement of the fixed jig, the large-range transfer of the keyboard to be tested cannot be completed, the conveying process needs frequent manual starting and stopping of the mobile device, so that the keyboard can enter the key press at intervals, the operation is complex, the testing efficiency is further reduced, and the service life of the mobile device is influenced.

Disclosure of Invention

In order to solve at least one of the above technical problems, the invention provides a key press, which adopts the following technical scheme:

the invention provides a key machine, which comprises a frame, a keyboard transmission device, a bracket and a pressing plate, wherein the keyboard transmission device is arranged on the frame; the keyboard transmission device is arranged in the rack and comprises a shell, a first conveying part and a second conveying part, the shell comprises a first side wall and a second side wall, the first side wall and the second side wall are vertically arranged, the first conveying part is arranged between the first side wall and the second side wall, the first conveying part comprises a first conveying belt and a first lifting platform, a first belt pulley is arranged on the first conveying belt, two first conveying belts are arranged on the first conveying belt, the two first conveying belts are respectively arranged on the first side wall and the second side wall, the first lifting platform is arranged between the two first conveying belts, the top height of the first lifting platform can be lifted or lowered, the first lifting platform is used for abutting against the bottom of the carrier, and the first lifting platforms are arranged at intervals, the top of the first lifting platform is provided with a connecting plate, each first lifting platform is connected through the connecting plate, the head end of the second conveying part is located at the tail 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 comprises a second conveying belt and a second lifting platform, a second belt pulley is arranged on the second conveying belt, the two second conveying belts are arranged at intervals, the two second conveying belts are respectively arranged on the first side wall and the second side wall, the second lifting platform is located between the two second conveying belts, the height of the top of the second lifting platform can be increased or reduced, the second lifting platform is used for abutting against the bottom of the carrier, and the second lifting platforms are arranged at intervals; the support comprises a first platform and a second platform, the first platform is positioned above the keyboard transmission device, a plurality of test heads are arranged on the first platform, the test heads are arranged in parallel, the test heads are positioned below the first platform, the second platform is positioned above the keyboard transmission device, and the second platform is connected with the first platform in a sliding manner; the pressing plate is connected with the second platform, the pressing plate is located below the second platform, the pressing plate is located above the second lifting platform, through holes are formed in the pressing plate, and the positions and the shapes of the through holes can correspond to those of keys on a keyboard.

The embodiment of the invention has at least the following beneficial effects: in the 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, so that the positions of the test heads are further adjusted, and the test efficiency is improved; the carrier enters the range of the keyboard transmission device from the head end of the first conveying part, is transmitted to the tail end of the first conveying part through the first conveying belt and is transmitted to the position of the second lifting platform through the second conveying belt, and the second lifting platform is lifted to enable the carrier and the keyboard to be separated from the second conveying belt and reach a testing position; the subsequent keyboards to be tested are conveyed to the position of the first lifting platform through the first conveying belt, and the first lifting platform is lifted to enable the keyboards to be tested and the corresponding carriers to be separated from the first conveying belt and to be located at the positions to be tested; after the keyboard test is finished, the second lifting platform descends to enable the keyboard to contact the second conveying belt and convey the keyboard out of the range of the keyboard conveying device; first lift platform descends, makes the keyboard that awaits measuring transmit to the test position through first conveyer belt, second conveyer belt, and the keyboard that awaits measuring circulates this process and tests one by one, promotes work efficiency, and first conveyer belt and second conveyer belt need not to stop, and the simplified operation process reduces staff's working strength to promote the availability factor UPH and the life of first conveyer belt and second conveyer belt.

In some embodiments of the invention, the first pulleys comprise a first tensioning wheel, the first tensioning wheel being near the head end of the first conveying section, the center of the first tensioning wheel being offset from the line connecting two adjacent first pulleys, the first conveyor belt being routed around the first tensioning wheel, the first conveyor belt being turned at the first tensioning wheel; the second belt pulley comprises a second tensioning wheel, the second tensioning wheel is close to the tail end of the second conveying part, the center of the second tensioning wheel deviates from the connecting line of two adjacent second belt pulleys, the second conveying belt is arranged around the second tensioning wheel, and the second conveying belt turns at the second tensioning wheel.

In some embodiments of the present invention, a first supporting structure is disposed on the top of each first lifting platform, the width of the first supporting structure is greater than the distance between two first conveyor belts, and the top of the first supporting structure can abut against the bottom of the carrier; the top of the second lifting platform is provided with a second supporting structure, the width of the second supporting structure is larger than the distance between the two second conveying belts, the second supporting structure is provided with a hollow part, and the carrier can penetrate through the hollow part.

In some embodiments of the invention, the first belt pulley comprises a first avoidance wheel, the first avoidance wheel is located at the bottom of the first support structure, the first conveying belt is arranged around the first avoidance wheel, and the first conveying belt turns at the position of the first avoidance wheel; the second belt pulley includes that the second dodges the wheel, the second dodges the wheel and is in the bottom of second bearing structure, the second conveyer belt walks around the second dodges the wheel setting, the second conveyer belt is in the second dodges the position turn of wheel.

In some embodiments of the invention, the first pulley comprises a first installation adjustment wheel connected to the housing by a threaded rod, the first installation adjustment wheel being capable of being brought closer to or farther from a head end of the first conveying section by a threaded connection; the second belt pulley comprises a second installation adjusting wheel, the second installation adjusting wheel is connected to the shell through a screw, and the second installation adjusting wheel can be close to or far away from the tail end of the second conveying part through threaded connection.

In some embodiments of the present invention, a plurality of first lead screws are juxtaposed on the first platform, the number of the first lead screws is the same as that of the test heads, a first connection structure is disposed on each of the first lead screws, a hollow portion is disposed on the first connection structure, a third internal thread is disposed on an inner wall of each of the hollow portions, each of the third internal threads is respectively engaged with each of the first lead screws, a plurality of hollow structures are juxtaposed on the first platform, each of the first connection structures respectively passes through each of the hollow structures, and each of the first connection structures is respectively connected to each of the test heads.

In some embodiments of the present invention, a plurality of first sliding rails are arranged in parallel at the bottom end of the first platform, a first groove is arranged on each first connecting structure, and each first groove is connected to each first sliding rail.

In some embodiments of the present invention, the bracket further includes a back plate, an extension plate is disposed at the bottom of the back plate, the extension plate extends horizontally, the extension plate is connected to the second platform, a second lead screw is disposed on the back plate, the second lead screw can rotate on the back plate, a second connection structure is disposed on the second lead screw, the second connection structure is connected to the first platform, a second slide rail is disposed on the back plate, a second groove is disposed on the first platform, and the second groove is connected to the second slide rail.

In some embodiments of the present invention, a third slide rail is disposed on the top of the second platform, a third groove is disposed 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.

In some embodiments of the present invention, a width adjustment assembly is disposed on the housing, the width adjustment assembly is configured to adjust a distance between the first side wall and the second side wall, the width adjustment assembly includes a positioning rod and two moving members, the positioning rod penetrates through the first side wall and the second side wall, a portion of the positioning rod, which is close to the first side wall, is provided with a first external thread, a portion of the positioning rod, which is close to the second side wall, is provided with a second external thread, directions of the first external thread and the second external thread are opposite, the two moving members are disposed on the first side wall and the second side wall respectively, the two moving members are disposed with a first internal thread and a second internal thread respectively, the first internal thread is engaged with the first external thread, and the second internal thread is engaged with the second external thread.

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.

Drawings

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

FIG. 1 is a schematic view of the key press of the present invention;

FIG. 2 is a schematic view of the key press with the frame removed;

FIG. 3 is a schematic structural diagram of a keyboard transmission device in the key press of the present invention;

FIG. 4 is a front view of the keyboard transport device of the present invention;

FIG. 5 is a schematic view of a first conveyor belt of the key press of the present invention;

FIG. 6 is a schematic view of the width adjustment assembly of the key press of the present invention;

FIG. 7 is a schematic structural diagram of a first platform of the key press of the present invention;

FIG. 8 is a schematic structural view of a back plate in the key press of the present invention;

FIG. 9 is a schematic view of the structure of the pressing plate in the key press of the present invention.

Reference numerals:

101. rack

201. A first conveyor belt; 202. a first lifting platform; 203. a second conveyor belt; 204. a second lifting platform; 205. a connecting plate;

301. a first tensioning wheel; 302. a first avoidance wheel; 303. a first mounting adjustment wheel; 304. a width adjustment assembly; 305. positioning a rod; 306. a moving member;

401. a first platform; 402. a second platform; 403. a test head;

501. a first lead screw; 502. a first connecting structure; 503. a first slide rail; 504. an extension plate; 505. a second lead screw; 506. a second slide rail; 507. a third slide rail; 508. and (7) pressing a plate.

Detailed Description

This section will describe in detail embodiments of the invention, examples of which are illustrated in the accompanying drawings, in conjunction with fig. 1 to 9, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that, if the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are used in the orientation or positional relationship indicated in the drawings, this is for convenience of description and simplicity of description only, and does not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. The features defined as "first" and "second" are used for distinguishing feature names rather than having special meanings, and further, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

The embodiment of the invention provides a key machine which comprises a rack, a keyboard transmission device, a support and a pressing plate. As shown in fig. 1, the housing 101 is disposed on the ground, and the keyboard transport, the bracket, and the pressing plate 508 are disposed inside the housing 101. Further, the frame 101 is provided with an indicator light, and the indicator light can send the light of different colours to whether the current operating condition of suggestion staff's key machine appears unusually. The rack 101 is provided with a display and an operation keyboard, the operation keyboard is used for inputting instructions so as to control the starting or stopping of the key machine, and the display is used for displaying the test items of the current keyboard and the working state of the key machine. It is understood that the bottom of the housing 101 is provided with casters, feet, and cups to facilitate movement and support of the housing 101.

As shown in fig. 3 to 4, the keyboard conveying device includes a housing, a first conveying portion, and a second conveying portion. The shell is hollow and comprises a base, a first side wall and a second side wall, the first side wall and the second side wall are arranged on the base, the first side wall and the second side wall are arranged in parallel at intervals, and the first side wall and the second side wall are vertically arranged.

The first conveying part is located between the first side wall and the second side wall, that is, the first conveying part is located inside the casing, the first conveying part includes a first conveying belt 201, and the carrier on which the keyboard to be tested is mounted abuts against the first conveying belt 201, and it can be understood that the part of the first conveying belt 201 moving to the top abuts against the bottom of the carrier. Due to the friction between the first conveyor belt 201 and the carriers, the carriers are gradually transported from the head end of the first transporting portion to the tail end of the first transporting portion.

Further, a first pulley is disposed on the first conveying belt 201, and the first pulley is used for defining the position of the first conveying belt 201, and meanwhile, the first pulley is also used for driving the first conveying belt 201 to move. Specifically, there is a friction force between the first belt pulley and the first conveyor belt 201, the driving wheel in the first belt pulley rotates to drive the first conveyor belt 201 to move, and the first conveyor belt 201 drives the driven wheel in the first belt pulley to rotate through the friction force, so that the first conveyor belt 201 smoothly performs the carrier conveying operation.

A set of first belt pulleys is arranged on the first side wall, a set of first belt pulleys is also arranged on the second side wall and corresponds to the first belt pulleys, the number of the first conveying belts 201 is two, the two first conveying belts 201 are arranged side by side, a certain distance exists between the two first conveying belts 201, the distance between the two first conveying belts 201 corresponds to the width of the carrier, the bottom edges of the two ends of the carrier can be arranged on the two first conveying belts 201 respectively, meanwhile, the carrier is prevented from interfering with the first side wall or the second side wall, and the smooth conveying process of the carrier is ensured.

The first conveying part further comprises a first lifting platform 202, the first lifting platform 202 is located between the two first conveying belts 201, the top of the first lifting platform 202 can be lifted or lowered, and when no keyboard exists at the testing position, the top of the first lifting platform 202 is lowered, so that the carrier can be moved out of the range of the first conveying belts 201 and then enters the testing position; when there is the keyboard in the test position, in order to avoid subsequent keyboard that awaits measuring to get into the test position once more, cause equipment to damage or keyboard to damage, when the carrier moved the position of first lift platform 202, first lift platform 202 top promotes, the bearing carrier to make the carrier break away from first conveyer belt 201, this process need not the motion of artificial first conveyer belt 201 that stops, reduces staff's working strength, simultaneously, avoids first conveyer belt 201 frequently scram to rise promptly, promotes the life of first conveyer belt 201.

It can be understood that at least two first lifting platforms 202 are provided, and each first lifting platform 202 is provided at intervals to support the carrier at a plurality of positions at the bottom of the carrier, so as to improve the stability of the carrier when the carrier is at the position to be tested. The top of each first lifting platform 202 is provided with connecting plate 205, and connecting plate 205 connects the top of each first lifting platform 202, increases the area of contact of first lifting platform 202 and carrier through connecting plate 205, further promotes the stability when the carrier is in the position of awaiting measuring.

The second conveying part is arranged between the first side wall and the second side wall, the head end of the second conveying part is arranged at the tail end of the first conveying part, namely, a carrier leaving the first conveying part can enter the range of the second conveying part, the second conveying part comprises a second conveying belt 203, the carrier provided with the keyboard to be tested is abutted against the second conveying belt 203, and the part of the second conveying belt 203 moving to the top is abutted against the bottom of the carrier.

Further, corresponding to the first conveyor belt 201, a second conveyor belt 203 is provided with a second pulley, and the second pulley is used for defining the position of the second conveyor belt 203, and at the same time, the second pulley is also used for driving the second conveyor belt 203 to move.

A set of second belt pulleys is arranged on the first side wall, and a set of second belt pulleys is also arranged on the second side wall, it can be understood that the number of the second conveying belts 203 is two, the two second conveying belts 203 are arranged in parallel, a certain distance exists between the two second conveying belts 203, the distance between the two second conveying belts 203 corresponds to the width of the carrier, it is ensured that the bottom edges of the two ends of the carrier can be respectively arranged on the two second conveying belts 203, and meanwhile, the carrier is prevented from interfering with the first side wall or the second side wall.

The second conveying part further comprises a second lifting platform 204, the second lifting platform 204 is located between the two second conveying belts 203, the top height of the second lifting platform 204 can be lifted or lowered, when no keyboard exists at the test position, the top of the second lifting platform 204 is lowered, it is guaranteed that the carrier can be moved to the top of the second lifting platform 204, when the carrier is moved to the top of the second lifting platform 204, the top height of the second lifting platform 204 is lifted, and the carrier is conveyed to the test position. This process need not the motion of artificial stop second conveyer belt 203, reduces staff's working strength, simultaneously, avoids the frequent scram of second conveyer belt 203 to be suddenly started, promotes the life of second conveyer belt 203.

It can be understood that at least two second lifting platforms 204 are provided, and each second lifting platform 204 is provided at intervals, so as to support the carrier at a plurality of positions at the bottom of the carrier, thereby improving the stability of the carrier when the carrier is at the position to be tested.

In some examples, a top portion of the first lift platform 202 is provided with a first support structure. Because the distance between first lateral wall and the second lateral wall can be adjusted, for guaranteeing first bearing structure's support stability, first bearing structure can adapt to the maximum distance between first lateral wall and the second lateral wall, and first bearing structure's width is greater than the distance between two first conveyer belts 201. In order to ensure the adaptability of the first side wall, the second side wall and the first supporting structure, an avoiding structure is arranged at the corresponding position of the first side wall, and an avoiding structure is arranged at the corresponding position of the second side wall. Further, the top of the first supporting structure is abutted against the bottom of the carrier.

A second support structure is provided on top of the second lifting platform 204. To ensure the support stability of the second support structure, the second support structure can be adapted to the maximum distance between the first side wall and the second side wall, the width of the second support structure being larger than the distance between the two second conveyor belts 203. In order to ensure the adaptability of the first side wall, the second side wall and the second supporting structure, an avoiding structure is arranged at the corresponding position of the first side wall, and an avoiding structure is arranged at the corresponding position of the second side wall. Further, the second supporting structure is provided with a hollow portion, and the carrier moved out from the first conveying portion can pass through the hollow portion and then be lifted along with the second lifting platform 204.

In some examples, the first lift platform 202 includes a first pneumatic ram and the second lift platform 204 includes a second pneumatic ram, the first pneumatic ram or the second pneumatic ram being extended or shortened by pneumatic pressure to change a height of the first support structure or the second support structure. It is understood that the first pneumatic rod is disposed at the bottom of the first support structure and the second pneumatic rod is disposed at the bottom of the second support structure.

As shown in fig. 5, in some examples, the first pulley includes a first tension wheel 301, the first tension wheel 301 is close to the head end of the first conveying portion, the center of the first tension wheel 301 is offset from the connecting line of two adjacent first pulleys, and when the first conveying belt 201 passes around the first tension wheel 301 and the adjacent first pulleys, the first conveying belt 201 is bent at the position of the first tension wheel 301, so that the first conveying belt 201 is in a tight state, and the conveying precision of the first conveying belt 201 is improved. The second belt pulley includes a second tension pulley, which is close to the end of the second conveying portion and bends the second conveying belt 203 at the position of the second tension pulley.

In some examples, the first pulley further includes a number of first avoidance wheels 302 equal to the number of first support structures, the first avoidance wheels 302 being at the bottom of the first support structures. When the first conveying belt 201 bypasses the first avoidance wheel 302 and two adjacent first belt pulleys, the first conveying belt 201 is bent at the position of the first avoidance wheel 302, so that the first conveying belt 201 avoids the first supporting structure with larger width, and the first supporting structure is prevented from interfering with the first conveying belt 201 in the lifting process. The second belt pulley further comprises second avoidance wheels, the number of the second avoidance wheels is equal to that of the second support structures, and the second avoidance wheels are located at the bottom of the second support structures, so that the second conveying belt 203 avoids the second support structures with large widths.

In some examples, the first pulley further comprises a first installation adjustment wheel 303, the relative position of the first installation adjustment wheel 303 and the housing can be adjusted, the first installation adjustment wheel 303 is connected to the housing through a screw, and the second installation adjustment wheel can move through the rotation of the screw. When the first installation adjustment wheel 303 moves toward the end of the first conveyance section, the first conveyance belt 201 slacks. At this time, the first conveyor belt 201 is conveniently taken down and maintained or replaced. When the first installation adjustment wheel 303 moves toward the head end of the first conveying section, the first conveyor belt 201 is further tensioned, and the conveying accuracy of the first conveyor belt 201 is improved. The second pulley further comprises a second mounting adjustment wheel, and the first conveyor belt 201 is slack when the second mounting adjustment wheel moves towards the head end of the second conveying section. When the second installation adjustment wheel moves to the end of the second conveying part, the second belt pulley is further tensioned, and the conveying precision of the second conveying belt 203 is improved.

As shown in fig. 6, in some examples, a width adjustment assembly 304 is disposed on the housing, the width adjustment assembly 304 being used to adjust the distance between the first and second sidewalls.

In some examples, width adjustment assembly 304 includes a positioning bar 305, a moving member 306. The positioning rod 305 penetrates through the first side wall and the second side wall, the positioning rod 305 is rotatably connected with the first side wall, and the positioning rod 305 is rotatably connected with the second side wall. Further, a first external thread is arranged on a portion, close to the first side wall, of the positioning rod 305, a second external thread is arranged on a portion, close to the second side wall, of the positioning rod 305, and the thread directions of the first external thread and the second external thread are opposite. The moving members 306 are provided with two moving members 306 corresponding to the first side wall and the second side wall, respectively, the inside of the two moving members 306 is provided with a first internal thread and a second internal thread, respectively, the first internal thread is engaged with the first external thread, the second internal thread is engaged with the second external thread, and through the rotation of the positioning rod 305, the two moving members 306 can move in opposite directions, that is, approach to or separate from each other. The two moving members 306 are connected to the first and second sidewalls, respectively, so as to move the first and second sidewalls closer to and away from each other.

Specifically, one end of the positioning rod 305 is provided with an adjusting handle, and the worker can rotate the positioning rod 305 by shaking the adjusting handle by hand, so that the distance between the first side wall and the second side wall is changed.

In some examples, the end of the first transport section is provided with a blocking member and the end of the second transport section is also provided with a blocking member. When the carrier and the keyboard exist in the testing position, the blocking component at the tail end of the first conveying part is used for preventing a subsequent keyboard to be tested from entering the testing position. When the carrier and the keyboard reach the top of the second supporting structure, the blocking assembly at the tail end of the second conveying part is used for preventing the carrier from continuing to advance, and the keyboard is conveniently conveyed to the testing position.

Further, the blocking assembly comprises a third pneumatic rod, and the third pneumatic rod is arranged at the bottom of the blocking assembly and used for lifting or lowering the top height of the blocking assembly. When the blocking component works, the third air pressure rod extends, and when the blocking component does not work, the third air pressure rod shortens.

In some examples, the stop assembly further comprises a roller at a top of the stop assembly. When stopping the subassembly and not carrying out the during operation, for avoiding stopping the top contact carrier of subassembly, cause the obstacle to advancing of carrier, gyro wheel butt carrier bottom to along with the removal of carrier rotates, replace sliding friction with rolling friction.

As shown in fig. 2, in some examples, the keyboard test assembly is within the cradle, i.e., the test position is within the cradle. To ensure that the second lifting platform 204 can convey the keyboard to be tested to the test position, the height of the top of the support is greater than that of the top of the keyboard transmission device, and the keyboard transmission device is located in the range of the support. The support comprises a first platform 401 and a second platform 402, wherein the first platform 401 is located above the keyboard transmission device, the first platform 401 is used for bearing a test head 403, the test head 403 can longitudinally stretch and retract, so that keys on the keyboard can be pressed or released to test the keyboard, and the test head 403 is correspondingly located below the first platform 401 due to the fact that the test position is located below the first platform 401. Further, since the keyboard has a certain width, in order to improve the testing efficiency, the testing heads 403 are provided in two groups, each group is provided with a plurality of testing heads 403, and the two groups of testing heads 403 are respectively located at two sides of the keyboard. The second platform 402 is located above the keyboard conveying device, and the first platform 401 can slide on the second platform 402, so that the position of the test head 403 can be adjusted, and the test accuracy is improved.

Specifically, two supports are arranged in parallel in the rack 101, and correspondingly, two keyboard transmission devices are arranged in parallel, so that two keyboards to be tested can be tested at the same time, the working efficiency is further improved, and the keyboard testing device is suitable for large-scale testing.

As shown in fig. 7, in some examples, a plurality of first lead screws 501 are arranged on the first platform 401 in parallel, and the first lead screws 501 are used for driving the test heads 403 to move, and it can be understood that the number of the first lead screws 501 is equal to that of the test heads 403. Because the test heads 403 are arranged in two groups, and the two groups of test heads 403 are symmetrical to each other, the first screw rods 501 are also arranged in two groups, each first screw rod 501 of one group is respectively arranged approximately coaxially with each first screw rod 501 of the other group, and each first screw rod 501 can rotate on the first platform 401.

Each first screw 501 is provided with a first connecting structure 502, and the connecting structures are used as transmission members to connect the first screws 501 with the corresponding test heads 403, it can be understood that the number of the first connecting structures 502 is equal to the number of the test heads 403. Specifically, a hollow part is arranged on the first connecting structure 502, and a third internal thread is arranged on the inner wall of the hollow part and meshed with the first lead screw 501. When the first lead screw 501 rotates, the first connecting structure 502 converts the rotation motion into a linear motion through a threaded connection, so that the test head 403 moves together, and the test head 403 is aligned with the keys of the keyboard to be tested.

Further, each first screw 501 is located at the top of the first platform 401, each testing head 403 is located at the bottom of the first platform 401, in order to connect the first screw 501 with the testing head 403, the first platform 401 is provided with a plurality of hollow structures, the first connecting structures 502 respectively pass through each hollow structure, and since the first connecting structures 502 can move, the hollow structures are arranged along the traveling path of the first connecting structures 502.

In some examples, the first lead screw 501 drives the first connecting structure 502 through rotation, and when the friction between the first lead screw 501 and the hollow portion is large, the first lead screw 501 drives the first connecting structure 502 to rotate by a small amplitude, which causes a position deviation between the testing head 403 and the key of the keyboard to be tested, and is not favorable for the testing operation. Therefore, the bottom end of the first platform 401 is provided with a plurality of first sliding rails 503 in parallel, each first connecting structure 502 is provided with a first groove, and each first groove is connected with each first sliding rail 503 respectively, so as to ensure that each first connecting structure 502 performs linear motion.

As shown in fig. 8, in some examples, the support further comprises a back plate coupled to the first platform 401 to facilitate multiple degrees of freedom of movement of the first platform 401. Further, the bottom of the back plate is provided with an extension plate 504, and the back plate extends horizontally due to the horizontal arrangement of the second platform 402, and the back plate is connected to the second platform 402 through the extension plate 504. The second lead screw 505 is arranged on the back plate, the second lead screw 505 is vertically arranged, the second lead screw 505 can rotate on the back plate, a second connecting structure is arranged on the second lead screw 505, in the rotating process of the second lead screw 505, the second connecting structure can move on the second lead screw 505, and the second connecting structure is connected with the first platform 401, namely the height of the first platform 401 relative to the back plate can be adjusted. Specifically, to further limit the first platform 401 to perform linear motion, the back plate is provided with a second slide rail 506, the first platform 401 is provided with a second groove, the second groove is connected to the second slide rail 506, the number of the second slide rails 506 is two, and correspondingly, the number of the second grooves is two.

In some examples, a third slide track 507 is disposed on the top of the second platform 402, and a third groove is disposed on the bottom of the extension plate 504, and the third groove is connected to the third slide track 507, so that the first platform 401, together with the test head 403 and the second platform 402, can perform relative movement, and further adjust the position of the test head 403 to adapt to a specific position of the keyboard.

Further, since the testing position is below the second platform 402, in order to ensure that the testing head 403 can reach the testing position, the second platform 402 is hollow, and the first connecting structure 502 can pass through the second platform 402.

As shown in fig. 9, in some examples, the key press further includes a pressing plate 508, the pressing plate 508 is in the testing position, that is, the pressing plate 508 is below the second platform 402, the pressing plate 508 is above the second lifting platform 204, a plurality of through holes are provided on the pressing plate 508, and the shapes and positions of the through holes correspond to the shapes and positions of the keys on the keyboard, respectively. After the test head 403 passes through the through hole, the key position of the keyboard can be accurately reached, and when the test head 403 is blocked by the pressing plate 508, the position of the test head 403 needs to be further adjusted, so that the effectiveness of test work is ensured, and the test efficiency is improved.

In the description herein, references to the terms "one embodiment," "some examples," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like, if any, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A key press, comprising:

a frame;

the keyboard transmission device is arranged in the rack and comprises a shell, a first conveying part and a second conveying part, the shell comprises a first side wall and a second side wall, the first side wall and the second side wall are vertically arranged, the first conveying part is positioned between the first side wall and the second side wall, the first conveying part comprises first conveying belts and a first lifting platform, a first belt pulley is arranged on each first conveying belt, two first conveying belts are arranged on each first conveying belt, the two first conveying belts are respectively arranged on the first side wall and the second side wall, the first lifting platform is positioned between the two first conveying belts, the top height of the first lifting platform can be lifted or lowered, and the first lifting platform is used for abutting against the bottom of a carrier, the first lifting platforms are arranged at intervals, a connecting plate is arranged at the top of each first lifting platform, each first lifting platform is connected through the connecting plate, the head end of each second conveying part is arranged at the tail end of each first conveying part, each second conveying part is arranged between the corresponding first side wall and the corresponding second side wall, each second conveying part comprises a second conveying belt and a second lifting platform, a second belt pulley is arranged on each second conveying belt, the two second conveying belts are arranged at intervals, the two second conveying belts are respectively arranged on the corresponding first side wall and the corresponding second side wall, each second lifting platform is arranged between the two second conveying belts, the height of the top of each second lifting platform can be increased or reduced, the second lifting platforms are used for abutting against the bottom of the carrier, and the second lifting platforms are arranged at intervals;

the support comprises a first platform and a second platform, the first platform is positioned above the keyboard transmission device, a plurality of test heads are arranged on the first platform, the test heads are arranged in parallel, the test heads are positioned below the first platform, the second platform is positioned above the keyboard transmission device, and the second platform is connected with the first platform in a sliding manner;

the pressing plate is connected with the second platform, the pressing plate is located below the second platform, the pressing plate is located above the second lifting platform, through holes are formed in the pressing plate, and the positions and the shapes of the through holes can correspond to those of keys on a keyboard.

2. The key punch as claimed in claim 1, wherein the first pulley comprises a first tension wheel near a head end of the first conveying portion, a center of the first tension wheel being offset from a line connecting two adjacent first pulleys, the first conveyor belt being disposed around the first tension wheel, the first conveyor belt being turned at the first tension wheel; the second belt pulley comprises a second tensioning wheel, the second tensioning wheel is close to the tail end of the second conveying part, the center of the second tensioning wheel deviates from the connecting line of two adjacent second belt pulleys, the second conveying belt is arranged around the second tensioning wheel, and the second conveying belt turns at the second tensioning wheel.

3. The key press of claim 1, wherein each of the first lift platform tops is provided with a first support structure having a width greater than a distance between the two first conveyor belts, the top of the first support structure being abuttable to a bottom of the carrier; the top of the second lifting platform is provided with a second supporting structure, the width of the second supporting structure is larger than the distance between the two second conveying belts, the second supporting structure is provided with a hollow part, and the carrier can penetrate through the hollow part.

4. The keyboard transport device of claim 3, wherein the first pulley comprises a first avoidance wheel at a bottom of the first support structure, the first conveyor belt is disposed around the first avoidance wheel, the first conveyor belt turns at a location of the first avoidance wheel; the second belt pulley includes that the second dodges the wheel, the second dodges the wheel and is in second bearing structure's bottom, the second conveyer belt walks around the second dodges the wheel setting, the second conveyer belt is in the second dodges the position turn of wheel.

5. The keyboard transport apparatus of claim 1, wherein the first pulley comprises a first installation adjustment wheel, the first installation adjustment wheel is connected to the housing by a threaded rod, and the first installation adjustment wheel can be close to or far from a head end of the first transport portion by a threaded connection; the second belt pulley comprises a second installation adjusting wheel, the second installation adjusting wheel is connected to the shell through a screw, and the second installation adjusting wheel can be close to or far away from the tail end of the second conveying part through threaded connection.

6. The key striking machine of claim 1, wherein a plurality of first lead screws are juxtaposed on said first platform, the number of said first lead screws is the same as the number of said test heads, a first connecting structure is provided on each of said first lead screws, a hollow portion is provided on said first connecting structure, a third internal thread is provided on an inner wall of each of said hollow portions, each of said third internal threads is engaged with each of said first lead screws, a plurality of hollow structures are juxtaposed on said first platform, each of said first connecting structures passes through each of said hollow structures, and each of said first connecting structures is connected to each of said test heads.

7. The key press according to claim 6, wherein a plurality of first slide rails are arranged at the bottom end of the first platform in parallel, a first groove is arranged on each first connecting structure, and each first groove is connected with each first slide rail.

8. The key press according to claim 6, wherein the support further comprises a back plate, an extension plate is arranged at the bottom of the back plate, the extension plate extends horizontally, the extension plate is connected with the second platform, a second lead screw is arranged on the back plate, the second lead screw can rotate on the back plate, a second connecting structure is arranged on the second lead screw, the second connecting structure is connected with the first platform, a second slide rail is arranged on the back plate, a second groove is arranged on the first platform, and the second groove is connected with the second slide rail.

9. The key press as claimed in claim 8, wherein 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 with the third slide rail, the second platform is hollow, and the first connecting structure can pass through the second platform.

10. The key striking machine according to claim 1, wherein a width adjustment assembly is disposed on the housing, the width adjustment assembly is configured to adjust a distance between the first side wall and the second side wall, the width adjustment assembly includes a positioning rod and two moving members, the positioning rod penetrates through the first side wall and the second side wall, a first external thread is disposed on a portion of the positioning rod close to the first side wall, a second external thread is disposed on a portion of the positioning rod close to the second side wall, directions of the first external thread and the second external thread are opposite, the two moving members are disposed on the first side wall and the second side wall respectively, the two moving members are disposed with a first internal thread and a second internal thread respectively, the first internal thread is engaged with the first external thread, and the second internal thread is engaged with the second external thread.