Aging screening system for steering engine driving circuit

Abstract

The invention discloses a steering engine drive circuit aging screening system, and relates to the technical field of circuit board detection equipment, the steering engine drive circuit aging screening system comprises a machine base and a fixing frame, and a vertical frame is fixed on one side of the machine base. According to the aging screening system for the steering engine drive circuit, during detection, the movable box containing the circuit board is manually placed in the box body containing cavity of the movable table, the movable box is positioned through the positioning mechanism, material placing and material taking are convenient, and the circuit board is prevented from deviating; the moving table can be driven to move transversely through the translation mechanism, meanwhile, the translation mechanism drags the jacking mechanism to operate, and after the translation mechanism drives the moving table to reach a limited position, the jacking mechanism jacks the movable box upwards, so that the circuit board is close to the detection screening assembly, detection dead angles are avoided, focusing of an optical detection element is facilitated, and rapid detection is facilitated; and the practicability of the aging screening system for the steering engine driving circuit is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board detection equipment, and specifically to a servo drive circuit aging screening system. Background Art

[0002] A servo is an actuator used to control position, speed, and acceleration, and is widely used in fields such as remote control models, robots, drones, and automation equipment. Among them, the servo drive circuit is an integrated drive circuit board dedicated to controlling the servo. The circuit board usually includes key components such as a power management module, a control chip, a drive circuit, and a signal interface to ensure the stable operation of the servo. When the servo runs for a long time, the drive circuit board will age, and it is necessary to use a servo drive circuit aging screening device to detect the servo drive circuit board. Usually, infrared light is used for thermal imaging detection of overheating problems, or visible light is used for appearance detection, and ultraviolet light is used for fluorescence defect detection.

[0003] In the existing servo drive circuit aging screening system, the workbench usually moves through the drive of an electric slide rail, so that the detection element can detect different horizontal positions of the circuit board. However, due to the different sizes of the circuit boards, there will be detection dead corners at the four corners of the circuit board, and the height of the workbench is usually fixed. When adjusting the height of the workbench, other drive components need to be started to adjust the height of the workbench. However, this method is time-consuming and not convenient for simultaneously adjusting the workbench horizontally and vertically, resulting in inaccurate detection results. For this reason, we have proposed a servo drive circuit aging screening system. Summary of the Invention

[0004] The purpose of the present invention is to provide a servo drive circuit aging screening system to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: a servo drive circuit aging screening system, including a machine base and a fixing frame. A vertical frame is fixed on one side of the machine base. Support plates are fixed at both ends of the machine base. An electric guide rail is installed on one side of the support plate through bolts. A sliding frame is slidably connected to one side of the electric guide rail. The fixing frame is welded above the sliding frame. A supporting table is welded above the fixing frame. A translation mechanism and a lifting mechanism are installed in the inner cavity of the supporting table, and the translation mechanism and the lifting mechanism are connected. The translation mechanism is connected to a moving table above the surface of the supporting table close to it. The translation mechanism includes a sliding rod, a translation block, an L-shaped rod, a guiding block and a turntable. The sliding rod is fixed in the groove on the surface of the supporting table. The translation block is slidably sleeved on the outer side of the sliding rod. The bottom end of the translation block is connected to the L-shaped rod. One end of the L-shaped rod away from the translation block is connected to a guiding frame. A second sliding groove is opened inside the guiding frame. The guiding block is slidably sleeved inside the second sliding groove. The turntable is fixed below the guiding block. A motor connected to the turntable through a coupling is installed in the built-in groove of the supporting table.

[0006] Preferably, the lifting mechanism includes a first sliding groove, a limiting frame, a slider, a top rod, a lifting groove and a connecting block. Lifting grooves are opened on the inner walls on both sides of the supporting table. The limiting frames are connected to both sides of the L-shaped rod through connecting rods.

[0007] Preferably, a first sliding groove is opened inside the limiting frame. A connecting block is provided on one side of the limiting frame. Sliders are fixedly connected to both sides of the connecting block.

[0008] Preferably, both the first sliding groove and the lifting groove are slidably connected to the slider. The top rod is fixedly connected above the connecting block and slidably penetrates through the inside of the moving table.

[0009] Preferably, a translation groove is opened on the surface of the supporting table close to the connecting block, and the translation groove is slidably connected to the connecting block.

[0010] Preferably, a top frame is installed on one side of the vertical frame close to the electric guide rail through bolts. A detection and screening component is installed below the top frame. A box placement cavity is opened in the middle of the moving table. A movable box is provided above the box placement cavity.

[0011] Preferably, round rods are fixed above the four corners of the moving table. The round rods are slidably sleeved with the four corners of the movable box. A circuit board placement cavity is opened inside the movable box.

[0012] Preferably, positioning mechanisms are connected to both sides of the moving table and the movable box. The positioning mechanism includes a support spring, a positioning block, a positioning groove, a docking block, a handle and a comparison block. Comparison blocks are fixed on both sides of the moving table close to the box placement cavity.

[0013] Preferably, docking blocks are fixed on both sides of the movable box, a supporting spring is provided in a built-in groove of the docking block, and positioning blocks are provided at both ends of the supporting spring.

[0014] Preferably, the positioning block and the docking block are in sliding sleeve connection, and positioning grooves are provided on the inner walls on both sides of the control block close to the positioning block.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: during the detection of the servo drive circuit aging screening system, the movable box containing the circuit board is manually placed in the box body placement cavity of the mobile platform, and the movable box is positioned by a positioning mechanism, which is convenient for placing and taking out materials and avoiding the circuit board from being offset. When the position of the circuit board needs to be adjusted, the mobile platform can be driven to move laterally by the translation mechanism, and at the same time, the translation mechanism pulls the lifting mechanism to operate. After the translation mechanism drives the mobile platform to reach a limited position, the lifting mechanism lifts the movable box upward, so that the circuit board is close to the detection and screening component, avoiding the occurrence of detection blind spots, facilitating the focusing of the optical detection element, facilitating rapid detection, and improving the practicality of the servo drive circuit aging screening system.

[0016] 1. The steering gear drive circuit aging screening system drives the turntable to rotate through the motor, and the turntable drives the guide block to perform circular rotation. The guide block will pull the guide frame to move horizontally, and the guide block will slide in the second slide slot. At the same time, the guide frame pushes the L-shaped rod to move horizontally, and then the L-shaped rod drives the translation block to slide horizontally on the outside of the slide bar, and the translation block pulls the moving table to slide horizontally on the surface of the supporting table. On the basis of the electric guide rail driving the slide to move, the position of the circuit board can be adjusted again, which increases the detection range of the detection and screening component, avoids some detection blind spots, improves the accuracy of the detection results of the steering gear drive circuit aging screening system, and facilitates the staff to screen out the aged and defective circuit boards; 2. The servo drive circuit aging screening system can drive the mobile platform to move horizontally while the translation mechanism drives the L-shaped rod to drive the connecting rod to move horizontally, and the connecting rod drives the limit frame to move, and the limit frame will pull the slider to drive the connecting block to move, and the connecting block will slide in the translation slot. Since the lifting slot is set as a boat-shaped structure with both ends facing upward, after the slider slides to the two end positions in the lifting slot, the slider on the side of the connecting block close to the limit frame slides upward in the No. 1 slide slot, and then the connecting block lifts the ejector rod upward, which can lift the movable box upward, so that the four corners of the movable box slide upward on the outside of the round rod, so that the circuit board is closer to the detection and screening component, which is convenient for the optical detection element to focus, convenient for rapid detection, and improves the detection efficiency. The translation mechanism and the lifting mechanism cooperate with each other, and can move and lift the circuit board at the same time. After lifting, it is also convenient for the staff to remove the detected circuit board from the workbench, which improves the practicality of the servo drive circuit aging screening system; 3. For this servo drive circuit aging screening system, the circuit board is manually placed into the circuit board placement cavity of the movable box. The size of the circuit board placement cavity can be customized according to the size of the circuit board. Subsequently, the movable box is placed into the box body placement cavity from top to bottom, such that the four corners of the movable box are sleeved outside the round rod. At the same time, the docking block enters the inside of the control block, and the supporting spring rebounds to drive the positioning block to snap into the positioning slot, positioning the movable box to avoid deviation, facilitating the placement by the staff. Moreover, the cross-sectional shapes of the positioning block and the positioning slot are both triangular, which does not affect the lifting of the movable box. The positioning block and the positioning slot only play a positioning role for the movable box. The staff can take and place materials by holding the handle, improving the convenience of the servo drive circuit aging screening system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a three-dimensional structural schematic diagram of the workbench of the present invention; Figure 3 is a three-dimensional structural schematic diagram of the circuit board placement cavity of the present invention; Figure 4 is a three-dimensional sectional structural schematic diagram of the positioning mechanism of the present invention; Figure 5 is a three-dimensional structural schematic diagram of the moving platform of the present invention; Figure 6 is a three-dimensional sectional structural schematic diagram of the workbench of the present invention; Figure 7 is a three-dimensional structural schematic diagram of the translation mechanism of the present invention; Figure 8 is a three-dimensional structural schematic diagram of the motor of the present invention; Figure 9 is a three-dimensional structural schematic diagram of the translation groove of the present invention; Figure 10 is a three-dimensional structural schematic diagram of the guide frame of the present invention; Figure 11 is a three-dimensional sectional structural schematic diagram of the lifting mechanism of the present invention.

[0018] In the figure: 1, machine base; 2, vertical frame; 3, support plate; 4, electric guide rail; 5, top frame; 6, lifting mechanism; 601, first chute; 602, limit frame; 603, slider; 604, ejector rod; 605, lifting groove; 606, connecting block; 7, detection and screening assembly; 8, positioning mechanism; 801, support spring; 802, positioning block; 803, positioning groove; 804, docking block; 805, handle; 806, comparison block; 9, translation mechanism; 901, slide bar; 902, translation block; 903, L-shaped rod; 904, guide block; 905, turntable; 10, supporting table; 11, carriage; 12, circuit board placement cavity; 13, moving table; 14, movable box; 15, round rod; 16, fixed frame; 17, box body placement cavity; 18, second chute; 19, guide frame; 20, motor; 21, connecting rod; 22, translation groove. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 3 , the present invention provides a technical solution: a servo drive circuit aging screening system, including a machine base 1 and a fixed frame 16. A vertical frame 2 is fixed on one side of the machine base 1. Support plates 3 are fixed at both ends of the machine base 1. An electric guide rail 4 is installed on one side of the support plate 3 by bolts. A carriage 11 is slidably connected to one side of the electric guide rail 4. The fixed frame 16 is welded above the carriage 11. A top frame 5 is installed on the side of the vertical frame 2 close to the electric guide rail 4 by bolts. A detection and screening assembly 7 is installed below the top frame 5.

[0021] Please refer to Figures 1 - 3 and Figures 5 - 10, a supporting platform 10 is welded above the fixing frame 16. A translation mechanism 9 and a lifting mechanism 6 are installed in the inner cavity of the supporting platform 10, and the translation mechanism 9 is connected to the lifting mechanism 6. Above the surface of the supporting platform 10 close to the translation mechanism 9, a moving platform 13 is connected. The translation mechanism 9 includes a slide bar 901, a translation block 902, an L-shaped rod 903, a guiding block 904, and a turntable 905. The slide bar 901 is fixed in the groove on the surface of the supporting platform 10. The outer side of the slide bar 901 is slidably sleeved with the translation block 902. The bottom end of the translation block 902 is connected with the L-shaped rod 903. One end of the L-shaped rod 903 away from the translation block 902 is connected with a guiding frame 19. A second sliding groove 18 is opened inside the guiding frame 19. The inner side of the second sliding groove 18 is slidably sleeved with the guiding block 904. Below the guiding block 904, the turntable 905 is fixed. In the built-in groove of the supporting platform 10, a motor 20 connected to the turntable 905 through a coupling is installed.

[0022] During specific implementation, during the detection of the servo drive circuit board, since the sizes of some servo drive circuit boards are different, there will be some detection dead angles, affecting the accuracy of the detection results. During detection, the motor 20 can be driven to drive the turntable 905 to rotate. The turntable 905 then drives the guiding block 904 to perform a circular rotational movement. The guiding block 904 will pull the guiding frame 19 to move horizontally. At the same time, the guiding block 904 slides in the second sliding groove 18. At the same time, the guiding frame 19 pushes the L-shaped rod 903 to move horizontally. Subsequently, the L-shaped rod 903 drives the translation block 902 to slide horizontally on the outer side of the slide bar 901. The translation block 902 then pulls the moving platform 13 to slide horizontally on the surface of the supporting platform 10. On the basis of the electric guide rail 4 driving the sliding frame 11 to move, the position of the circuit board can be adjusted again, increasing the detection range of the detection and screening component 7, avoiding some detection dead angles, improving the accuracy of the detection results of the servo drive circuit aging screening system, and facilitating the staff to screen out the aging and defective circuit boards.

[0023] Please refer to Figures 5 - 9 and Figure 11, the lifting mechanism 6 includes a first chute 601, a limiting frame 602, a slider 603, a push rod 604, a lifting groove 605 and a connecting block 606. Lifting grooves 605 are provided on the inner walls of both sides of the supporting table 10. Limiting frames 602 are connected to both sides of the L-shaped rod 903 through connecting rods 21. A first chute 601 is provided inside the limiting frame 602. A connecting block 606 is provided on one side of the limiting frame 602. Sliders 603 are fixedly connected to both sides of the connecting block 606. The first chute 601 and the lifting groove 605 are both slidably connected to the slider 603. A push rod 604 is fixedly connected above the connecting block 606, and the push rod 604 slidably penetrates inside the moving table 13. A translation groove 22 is provided on the surface of the supporting table 10 close to the connecting block 606, and the translation groove 22 is slidably connected to the connecting block 606. The lifting groove 605 is designed in a boat shape, and both ends of the lifting groove 605 face upward.

[0024] During specific implementation, since the height of the workbench is usually fixed, but the optical detection element in the detection and screening component 7 needs to be focused. When the optical detection element is far away from the workbench, it will affect the focusing effect, making it inconvenient for rapid detection, consuming detection time, and reducing detection efficiency. While the translation mechanism 9 drives the moving table 13 to move horizontally, the L-shaped rod 903 drives the connecting rod 21 to move horizontally, the connecting rod 21 then drives the limiting frame 602 to move, and the limiting frame 602 will pull the slider 603 to drive the connecting block 606 to move. At the same time, the connecting block 606 slides in the translation groove 22. Since the lifting groove 605 is designed in a boat shape with both ends facing upward, after the slider 603 slides to both ends in the lifting groove 605, the slider 603 on the side of the connecting block 606 close to the limiting frame 602 slides upward in the first chute 601. Subsequently, the connecting block 606 jacks up the push rod 604 upward, which can jack up the movable box 14 upward, making the four corners of the movable box 14 slide upward outside the round rod 15, making the circuit board closer to the detection and screening component 7, facilitating the focusing of the optical detection element, facilitating rapid detection, and improving the detection efficiency. The translation mechanism 9 and the lifting mechanism 6 cooperate with each other, can move and lift the circuit board simultaneously, and it is also convenient for the staff to unload the detected circuit board from the supporting table 10 after lifting, improving the practicability of the servo drive circuit aging screening system.

[0025] Please refer to Figures 1 - 6 and Figure 10, on one side of the vertical frame 2 close to the electric guide rail 4, a top frame 5 is installed by bolts. Below the top frame 5, a detection and screening assembly 7 is installed. In the middle of the moving table 13, a box placement cavity 17 is opened. Above the box placement cavity 17, there is a movable box 14. Above the four corners of the moving table 13, round rods 15 are fixed. The round rods 15 are slidably sleeved with the four corners of the movable box 14. Inside the movable box 14, a circuit board placement cavity 12 is opened. On both sides of the moving table 13 and the movable box 14, a positioning mechanism 8 is connected. The positioning mechanism 8 includes a support spring 801, a positioning block 802, a positioning groove 803, a docking block 804, a handle 805, and a comparison block 806. On both sides of the moving table 13 close to the box placement cavity 17, comparison blocks 806 are fixed. On both sides of the movable box 14, docking blocks 804 are fixed. In the built-in groove of the docking block 804, a support spring 801 is provided. At both ends of the support spring 801, positioning blocks 802 are provided. The positioning blocks 802 are slidably sleeved with the docking block 804. On both inner walls of the comparison block 806 close to the positioning block 802, positioning grooves 803 are opened. The cross-sectional shapes of the positioning block 802 and the positioning groove 803 are both triangular.

[0026] During specific implementation, when some detection and screening devices place circuit boards, they usually use a clamping assembly to clamp the circuit board and place it on the support table 10. However, directly clamping the circuit board by the clamping assembly will cause damage to the circuit board, and it is easy to deviate during placement. The circuit board can be manually placed into the circuit board placement cavity 12 of the movable box 14. The size of the circuit board placement cavity 12 can be customized according to the size of the circuit board. Then, the movable box 14 is placed into the box placement cavity 17 from top to bottom, so that the four corners of the movable box 14 are sleeved outside the round rods 15. At the same time, the docking block 804 enters the inside of the comparison block 806. The support spring 801 rebounds to drive the positioning block 802 to snap into the positioning groove 803 to position the movable box 14 and avoid deviation, which is convenient for the staff to place. Moreover, the cross-sectional shapes of the positioning block 802 and the positioning groove 803 are both triangular, which does not affect the lifting of the movable box 14. The positioning block 802 and the positioning groove 803 only play a positioning role for the movable box 14. The staff can hold the handle 805 to take and place materials, improving the convenience of the servo drive circuit aging screening system.

[0027] In summary, when using this servo drive circuit aging screening system, the staff place the movable box 14 containing the circuit board on the moving platform 13 through the positioning mechanism 8. Subsequently, the electric guide rail 4 drives the carriage 11 to slide, and the carriage 11 drives the fixed frame 16 and the supporting platform 10 to reach below the detection and screening component 7. The optical detection element in the detection and screening component 7 detects the defects and aging conditions on the circuit board. At the same time, the translation mechanism 9 and the lifting mechanism 6 adjust the position of the circuit board to facilitate rapid focusing detection, improving the detection efficiency and practicability of the servo drive circuit aging screening system. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A steering gear drive circuit aging screening system, comprising a base (1) and a fixing frame (16), characterized in that: A stand (2) is fixed on one side of the machine base (1), support plates (3) are fixed on both ends of the machine base (1), an electric guide rail (4) is installed on one side of the support plate (3) by means of bolts, a slide frame (11) is slidably connected to one side of the electric guide rail (4), the fixed frame (16) is welded on the top of the slide frame (11), a support platform (10) is welded on the top of the fixed frame (16), a translation mechanism (9) and a lifting mechanism (6) are installed in the inner cavity of the support platform (10), and the translation mechanism (9) and the lifting mechanism (6) are connected, a moving platform (13) is connected to the top of the translation mechanism (9) near the surface of the support platform (10), and the translation mechanism (9) comprises a slide bar (901), a translation block (902), an L The support platform (10) is provided with a sliding rod (901) fixed in a surface groove, a translation block (902) is slidably sleeved on the outer side of the sliding rod (901), the bottom end of the translation block (902) is connected to an L-shaped rod (903), the end of the L-shaped rod (903) away from the translation block (902) is connected to a guide frame (19), a second sliding groove (18) is provided on the inner side of the guide frame (19), a guide block (904) is slidably sleeved on the inner side of the second sliding groove (18), a rotational plate (905) is fixed below the guide block (904), and a motor (20) connected to the rotational plate (905) via a coupling is installed in the built-in groove of the support platform (10).

2. The servo drive circuit aging screening system according to claim 1, characterized in that: The lifting mechanism (6) comprises a No. 1 slide groove (601), a limiting frame (602), a slide block (603), a push rod (604), a lifting groove (605) and a connecting block (606); lifting grooves (605) are provided on the inner walls on both sides of the support platform (10); and both sides of the L-shaped rod (903) are connected to the limiting frame (602) via connecting rods (21).

3. The servo drive circuit aging screening system according to claim 2, characterized in that: A first slide groove (601) is provided on the inner side of the limiting frame (602), a connecting block (606) is provided on one side of the limiting frame (602), and sliding blocks (603) are fixedly connected to both sides of the connecting block (606).

4. The steering gear drive circuit aging screening system according to claim 3, characterized in that: The first slide groove (601) and the lifting groove (605) are both slidably connected to the slider (603), and a push rod (604) is fixedly connected to the top of the connecting block (606), and the push rod (604) slides through the interior of the moving platform (13).

5. The steering gear drive circuit aging screening system according to claim 4, characterized in that: A translation groove (22) is provided on the surface of the support platform (10) close to the connection block (606), and the translation groove (22) and the connection block (606) are slidably connected.

6. The steering gear drive circuit aging screening system according to claim 1, characterized in that: A top frame (5) is installed on one side of the stand (2) close to the electric guide rail (4) by means of bolts, a detection and screening assembly (7) is installed below the top frame (5), a box body placement cavity (17) is opened in the middle of the movable platform (13), and a movable box (14) is provided above the box body placement cavity (17).

7. The steering gear drive circuit aging screening system according to claim 6, characterized in that: Round rods (15) are fixed above the four corners of the movable platform (13), and the round rods (15) are slidably sleeved with the four corners of the movable box (14). A circuit board placement cavity (12) is provided on the inner side of the movable box (14).

8. The steering gear drive circuit aging screening system according to claim 7, characterized in that: The two sides of the mobile platform (13) and the movable box (14) are connected with a positioning mechanism (8), the positioning mechanism (8) comprising a supporting spring (801), a positioning block (802), a positioning groove (803), a docking block (804), a handle (805) and a comparison block (806), and the two sides of the mobile platform (13) close to the box body placement cavity (17) are fixed with a comparison block (806).

9. The steering gear drive circuit aging screening system according to claim 8, characterized in that: A docking block (804) is fixed on both sides of the movable box (14), a support spring (801) is provided in a built-in groove of the docking block (804), and positioning blocks (802) are provided at both ends of the support spring (801).

10. The steering gear drive circuit aging screening system according to claim 9, characterized in that: The positioning block (802) and the docking block (804) are slidably sleeved, and positioning grooves (803) are provided on the inner walls of both sides of the control block (806) close to the positioning block (802).

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