An electric control handle comprehensive life test device

Abstract

The application relates to an electric control handle comprehensive life test device, in particular to an electric control handle comprehensive life test device, which comprises a workbench top, a product support for mounting an electric control handle is arranged on the workbench, characterized in that the product support is connected with the workbench through a rotating device; a first driving device is further arranged on the workbench, a transmission shaft is connected with the first driving device through a first coupling, and an expansion sleeve shaft is connected with an expansion sleeve at one end of the transmission shaft away from the first coupling through the expansion sleeve arranged on the transmission shaft; the rotating device is used for rotating the product support for mounting the electric control handle, the pressing device is used for pressing a micro-motion switch at the top end of the electric control handle, the first driving device is used for driving the transmission shaft to rotate, and the driving lever is used for swinging the electric control handle mounted on the product support, so that the test of various indexes of the electric control handle is realized; the operation is simple, and the response speed is fast.

Description

Technical Field

[0001] This invention relates to the field of electronic handle testing, and more specifically to an electronic handle comprehensive life test device. Background Technology

[0002] The electric control handle employs a high-reliability angular displacement sensor and utilizes ergonomic design principles to integrate various control functions into single-handed operation. It is widely used in moving vehicles such as aviation, aerospace, armored vehicles, and ships. The operator selects, positions, and tracks moving targets through manual control. The entire product consists of a handle joystick, main housing, potentiometer, microswitch, and electronic circuitry. Due to the specific operating conditions and environments of the electric control handle, high sensitivity and lifespan are required.

[0003] In the early stages of R&D, the manufacturing unit needs to test the output parameters (current or voltage) and reliability of the electric control handle when it is rotated to various positions and the joystick swings to a specific angle. To meet the manufacturing unit's testing requirements for various indicators of the electric control handle, the following equipment requirements are proposed.

[0004] Because the rotation and swing angle control accuracy required during the testing of electric control handles is high, there is currently no corresponding testing device on the market. Therefore, it is necessary to invent a comprehensive life test device for electric control handles. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a simple, stable, and highly integrated electronically controlled handle comprehensive life testing device.

[0006] The present invention provides a comprehensive life test device for an electronically controlled handle, comprising a worktable, wherein a product bracket for mounting an electronically controlled handle is provided on the worktable, and the product bracket is connected to the worktable via a rotating device. The workbench is also equipped with a first driving device, which is connected to a transmission shaft via a first coupling. The end of the transmission shaft away from the first coupling is connected to an expansion sleeve shaft via an expansion sleeve fitted on the transmission shaft. Two parallel levers are fixedly connected to the expansion sleeve shaft. The ends of the two levers away from the expansion sleeve shaft are fixedly connected via bushings. The bushing is provided with a through hole, and a third bearing is engaged in the through hole. The inner ring of the third bearing is provided with an inner nest for fitting onto the upper cylindrical surface of the electric control handle. The worktables on both sides of the lever are also equipped with first limit switches to prevent the electric control handle from swinging beyond the limit angle. The first limit switches are all electrically connected to the first drive device. The workbench is also equipped with a pressing device for pressing the micro switch at the top of the electric control handle.

[0007] Preferably, the pressing device includes a slide table fixing plate and a second driving device. The slide table fixing plate is fixedly mounted on the end of the expansion sleeve shaft away from the transmission shaft. The slide table fixing plate faces the product bracket and is vertically mounted. The ends of the two levers away from the bushing are respectively fixedly connected to the corresponding sides of the slide table fixing plate. A slide rail is provided on the upper part of the side of the slide table fixing plate facing the product bracket. A slide table is provided on the slide rail. A lead screw is threadedly connected to the slide table. The end of the lead screw facing the lower part of the slide table fixing plate is connected to the second drive device through a second coupling. The second drive device is fixedly installed on the lower part of the slide table fixing plate. The second drive device drives the lead screw to rotate, thereby moving the slide table up and down. A pressing plate is fixedly connected to the slide table. A pressing element for pressing the micro switch at the top of the electric control handle is provided on the end of the pressing plate away from the slide table. The pressing element is located above the product bracket.

[0008] Preferably, three second limit switches are also provided on the slide table fixing plate on one side of the slide table. The three second limit switches are respectively provided at both ends and the middle of the slide table, and all three second limit switches are electrically connected to the second drive device.

[0009] Preferably, the second driving device is a second servo motor, which is fixedly mounted on the slide plate via a second motor mount.

[0010] Preferably, the rotating device includes a third driving device, which is fixedly installed inside the worktable. A rotating mounting shaft is connected to the third driving device via a third coupling. After passing through the worktable and a second bearing seat, the rotating mounting shaft is fixedly connected to the bottom of the product bracket. The second bearing seat is fixedly installed on the worktable, and the rotating mounting shaft and the second bearing seat are rotatably connected via a bearing.

[0011] Preferably, the third driving device is a third servo motor, which is fixedly connected to the worktable via a third motor mount, which is fixedly installed inside the worktable.

[0012] Preferably, a first bearing seat is fixedly provided on the worktable between the first coupling and the expansion sleeve shaft, and the transmission shaft passes through the first bearing seat and is rotatably connected to the first bearing seat through a bearing sleeved on the transmission shaft.

[0013] Preferably, the first driving device is a first servo motor, which is fixedly mounted on the worktable via a first motor mount.

[0014] This invention utilizes a rotating device to rotate the product bracket on which the electric control handle is mounted, a pressing device to press the micro switch at the top of the electric control handle, and a first driving device to drive the transmission shaft to rotate, thereby driving the lever to swing the electric control handle mounted on the product bracket, thus enabling the testing of various indicators of the electric control handle; it is simple to operate and has a fast response speed.

[0015] This invention utilizes three servo motors as drive motors. These servo motors offer high control precision, smooth operation, and fast speed response, meeting testing requirements. The encoders of all servo motors are calibrated, ensuring accurate feedback of angle and position signals. This invention is highly integrated, enabling multi-directional movement and testing of data from the electrically controlled handle in various positional states within a single testing device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is an isometric view of the present invention.

[0018] Reference numerals: 1-First servo motor, 2-First motor mount, 3-First coupling, 4-First bearing mount, 5-First bearing, 6-Drive shaft, 7-Second bearing, 8-Expansion sleeve shaft, 9-Tightening sleeve, 10-Lever, 11-Slide table fixing plate, 12-Pressing component fixing plate, 13-Slide table, 14-Pressing component, 15-Snap ring, 16-Third bearing, 17-Second coupling, 18-Second motor mount, 19-Second servo motor, 20-Electrical control handle, 21-Product bracket, 22-Rotating mounting shaft, 23-Second bearing mount, 24-Worktable, 25-Third coupling, 26-Third motor mount, 27-Third servo motor, 28-Profile frame, 29-Adjustable foot, 30-First limit switch bracket, 31-First limit switch, 32-Second limit switch, 33-Inner nest, 34-Bushing, 35-Wire hole, 36-Connector. Detailed Implementation

[0019] The present invention provides a comprehensive life test device for an electronically controlled handle 20, comprising a workbench 24, wherein a product bracket 21 for mounting the electronically controlled handle 20 is provided on the workbench 24, and the product bracket 21 is connected to the workbench 24 via a rotating device. The workbench 24 is also equipped with a first driving device. The first driving device is connected to a transmission shaft 6 via a first coupling 3. The end of the transmission shaft 6 away from the first coupling 3 is connected to an expansion sleeve shaft 8 via an expansion sleeve 9 sleeved on the transmission shaft 6. Two parallel levers 10 are fixedly connected to the expansion sleeve shaft 8. The ends of the two levers 10 away from the expansion sleeve shaft 8 are fixedly connected via bushings 34. The bushings 34 are provided with through holes. A third bearing 16 is engaged in the through holes. The inner ring of the third bearing 16 is provided with an inner nest 33 for engaging with the upper cylindrical surface of the electric control handle 20. The third bearing 16 is engaged in the through holes via snap rings 15.

[0020] The worktables 24 located on both sides of the lever 10 are also equipped with first limit switches 31 to prevent the electric control handle 20 from swinging beyond the limit angle. The first limit switches 31 are all electrically connected to the first drive device. The first limit switches 31 are mounted on the worktables 24 through the first limit switch 31 bracket 30. The workbench 24 is also equipped with a pressing device for pressing the micro switch at the top of the electric control handle 20.

[0021] In one embodiment, the pressing device includes a slide plate 11 and a second driving device. The slide plate 11 is fixedly mounted on the end of the expansion sleeve shaft 8 away from the transmission shaft 6. The slide plate 11 faces the product bracket 21 and is vertically mounted. The ends of the two levers 10 away from the bushing 34 are respectively fixedly connected to the corresponding sides of the slide plate 11. A slide rail is provided on the upper part of the side of the slide table fixing plate 11 facing the product bracket 21. A slide table 13 is provided on the slide rail. A lead screw is threadedly connected to the slide table 13. The end of the lead screw facing the lower part of the slide table fixing plate 11 is connected to the second driving device through the second coupling 17. The second driving device is fixedly installed on the lower part of the slide table fixing plate 11. The second driving device drives the lead screw to rotate, thereby moving the slide table 13 up and down. A pressing plate is fixedly connected to the slide table 13. A pressing element 14 for pressing the micro switch at the top of the electric control handle 20 is provided on the end of the pressing plate away from the slide table fixing plate 11. The pressing element 14 is located above the product bracket 21.

[0022] Three second limit switches 32 are also provided on the slide table fixing plate 11 on one side of the slide table 13. The three second limit switches 32 are respectively provided at both ends and the middle of the slide table 13, and all three second limit switches 32 are electrically connected to the second drive device.

[0023] The second drive device is a second servo motor 19, which is fixedly mounted on the slide table fixing plate 11 via a second motor base 18.

[0024] Working principle of pressing: The output shaft of the second servo motor 19 drives the lead screw to rotate through the second coupling 17. The slide table 13 moves up and down by continuously rotating the lead screw left and right. At this time, the pressing component fixing plate 12 installed on the slide table 13 drives the pressing component 14 to press the micro switch at the top of the electric control handle 20.

[0025] The lead screw is coaxial with the output shaft of the second servo motor 19, ensuring the reliability of the motion process and the accuracy of the stroke control. The second limit switch 32 at the lower part of the slide table 13 is used to prevent the slide table 13 from moving downwards beyond its travel range, avoiding damage to the micro switch at the top of the joystick due to excessive pressing. The second limit switch 32 in the middle of the slide table 13 is used to return the slider to the middle position after the pressing action is completed. The second limit switch 32 at the upper part of the slide table 13 is used to prevent the slide table 13 from moving upwards beyond its travel range, avoiding collisions that could cause damage to the slide table 13.

[0026] In one embodiment, the rotating device includes a third driving device, which is fixedly installed inside the worktable 24. A rotating mounting shaft 22 is connected to the third driving device via a third coupling 25. The rotating mounting shaft 22 passes through the worktable 24, passes through a second bearing seat 23, and is fixedly connected to the bottom of the product bracket 21. The second bearing seat 23 is fixedly installed on the worktable 24, and the rotating mounting shaft 22 and the second bearing seat 23 are rotatably connected via a bearing.

[0027] The third driving device is a third servo motor 27, which is fixedly connected to the worktable 24 via a third motor base 26, which is fixedly installed inside the worktable 24.

[0028] Rotational working principle: The output shaft of the third servo motor 27 drives the rotary mounting shaft 22 to rotate through the third coupling 25. At this time, the product bracket 21 installed on the upper end face of the rotary mounting shaft 22 drives the electric control handle 20 to rotate simultaneously.

[0029] The output shaft of the third servo motor 27, the rotation center of the rotary mounting shaft 22, and the rotation center of the electric control handle 20 are all coaxial, ensuring the reliability of the rotation process and the accuracy of the rotation angle and orientation control.

[0030] In one embodiment, a first bearing seat 4 is fixedly provided on the worktable 24 between the first coupling 3 and the expansion sleeve shaft 8. The transmission shaft 6 passes through the first bearing seat 4 and is rotatably connected to the first bearing seat 4 through the first bearing 5 and the second bearing 7 sleeved on the transmission shaft 6.

[0031] The first driving device is a first servo motor 1, which is fixedly mounted on the worktable 24 via a first motor base 2.

[0032] The swing working principle: The output shaft of the first servo motor 1 drives the transmission shaft 6 to rotate left and right through the first coupling 3. The transmission shaft 6 drives the slide table fixed plate 11 to swing left and right. The levers 10 installed on both sides of the slide table fixed plate 11 and the bushings 34 at the other end of the levers 10 swing accordingly. The inner nest 33 inside the bushing 34 cooperates with the upper cylindrical surface of the electric control handle 20. At this time, the electric control handle 20 swings left and right with the transmission shaft 6 to realize the simulation of the driver's manual operation process.

[0033] The swing centers of the output shaft of the first servo motor 1, the transmission shaft 6, and the slide plate 11 are coaxial with the swing center of the electric control handle 20. The inner ring of the bushing 34 is coaxial with the upper cylindrical surface of the electric control handle 20, ensuring the reliability of the test process and the accuracy of the swing angle control.

[0034] The first limit switches 31 installed on both sides of the slide plate 11 can prevent the control lever from being damaged due to over-position during the swinging process of the swinging structure driving the control lever 20 to swing.

[0035] The workbench 24 is set on the profile frame 28, and the bottom of the profile frame 28 is connected to the adjustable feet 29 to support the profile frame 28.

[0036] This invention is driven by three servo motors. The electric control handle 20 is mounted on the product bracket 21 and rotates together with the product bracket 21 under the drive of the third servo motor 27. At the same time, the encoder of the third servo motor 27 feeds back the current position signal, which can make the product rotate to any specified position. Under the drive of the first servo motor 1, it can swing at any angle to simulate the operation of a driver. The pressing device is connected to the lever 10, and the pressing operation can be realized when the electric control handle 20 swings to any angle.

[0037] This invention enables automatic control of the angle and orientation of the electric control handle 20, and can keep it stationary at any angle and orientation. The power and signal lines of the first servo motor 1, the second servo motor 19, and the tested electric control handle 20, located above the worktable 24, are all led to the area below the worktable 24 through cable guide holes 35, and connected to the host computer along with the power and signal lines of the third servo motor 27 via connector 36 on the side plate of the profile frame. The host computer can set parameters and control the motion of the above three mechanisms, and simultaneously collect real-time swing and pressing signals (i.e., current and voltage signals) when the electric control handle 20 rotates to various positions. After the host computer operation commands are set, the system can perform cyclic operation on the electric control handle 20 and record and save the test data during the process until the life test requirements are met.

Claims

1. A comprehensive life testing device for an electronically controlled handle, comprising a workbench, wherein a product bracket for mounting the electronically controlled handle is provided on the workbench, characterized in that, The product support is connected to the workbench via a rotating device; The workbench is also equipped with a first driving device, which is connected to a transmission shaft via a first coupling. The end of the transmission shaft away from the first coupling is connected to an expansion sleeve shaft via an expansion sleeve fitted on the transmission shaft. Two parallel levers are fixedly connected to the expansion sleeve shaft. The ends of the two levers away from the expansion sleeve shaft are fixedly connected via bushings. The bushing is provided with a through hole, and a third bearing is engaged in the through hole. The inner ring of the third bearing is provided with an inner nest for fitting onto the upper cylindrical surface of the electric control handle. The worktables on both sides of the lever are also equipped with first limit switches to prevent the electric control handle from swinging beyond the limit angle. The first limit switches are all electrically connected to the first drive device. The workbench is also equipped with a pressing device for pressing the micro switch at the top of the electric control handle; The pressing device includes a slide table fixing plate and a second driving device. The slide table fixing plate is fixedly installed on the end of the expansion sleeve shaft away from the transmission shaft. The slide table fixing plate faces the product bracket and is vertically installed. The ends of the two levers away from the bushing are respectively fixedly connected to the corresponding sides of the slide table fixing plate. A slide rail is provided on the upper part of the side of the slide table fixing plate facing the product bracket. A slide table is provided on the slide rail. A lead screw is threadedly connected to the slide table. The end of the lead screw facing the lower part of the slide table fixing plate is connected to the second drive device through a second coupling. The second drive device is fixedly installed on the lower part of the slide table fixing plate. The second drive device drives the lead screw to rotate, thereby moving the slide table up and down. A pressing plate is fixedly connected to the slide table. A pressing element for pressing the micro switch at the top of the electric control handle is provided on the end of the pressing plate away from the slide table. The pressing element is located above the product bracket. The second driving device is a second servo motor, which is fixedly mounted on the slide plate via a second motor mount. The rotating device includes a third driving device, which is fixedly installed inside the workbench. A rotating mounting shaft is connected to the third driving device via a third coupling. After passing through the workbench and a second bearing seat, the rotating mounting shaft is fixedly connected to the bottom of the product bracket. The second bearing seat is fixedly installed on the workbench, and the rotating mounting shaft and the second bearing seat are rotatably connected via a bearing. A first bearing seat is fixedly installed on the worktable between the first coupling and the expansion sleeve shaft. The transmission shaft passes through the first bearing seat and is rotatably connected to the first bearing seat through a bearing sleeved on the transmission shaft.

2. The comprehensive life test device for an electronically controlled handle as described in claim 1, characterized in that, Three second limit switches are also provided on the slide table fixing plate on one side of the slide table. The three second limit switches are respectively provided at both ends and the middle of the slide table, and all three second limit switches are electrically connected to the second drive device.

3. The comprehensive life test device for an electronically controlled handle as described in claim 1, characterized in that, The third driving device is a third servo motor, which is fixedly connected to the worktable via a third motor mount, which is fixedly installed inside the worktable.

4. The comprehensive life test device for an electronically controlled handle as described in claim 1, characterized in that, The first driving device is a first servo motor, which is fixedly mounted on the worktable via a first motor mount.

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