Automatic screw locking device for heat dissipation plate

Abstract

The utility model discloses an automatic screw locking device for a heat sink, which comprises a workbench, side plates are arranged on both sides of the upper surface of the workbench along the length direction of the workbench, connecting shafts are rotatably connected between both ends of the two side plates through bearings, one of the connecting shafts is connected with a driving mechanism, and the other connecting shaft is connected with a screw locking mechanism. The driving mechanism is installed on the side plates, the two ends of the two connecting shafts are connected through belt wheels and belts, and multiple sets of supporting blocks which are distributed at equal intervals and used for containing heat dissipation plates are arranged on the surfaces of the two belts. According to the device, only a worker needs to take and place the heat dissipation plate, the automation degree of the whole process is high, the labor intensity of the worker is greatly reduced, through the arrangement of the supporting block, the heat dissipation plate is limited, the heat dissipation plate is conveniently and rapidly taken and placed, uninterrupted screw turning of the heat dissipation plate is achieved under the cooperation of the belt and the U-shaped frame, and the production efficiency is improved. The working efficiency is greatly improved, and the practicability is high.

Description

Technical Field

[0001] This utility model belongs to the technical field of circuit control board production equipment, and in particular relates to an automatic screw-locking device for heat sinks. Background Technology

[0002] With the continuous development of electronic technology, the electronics manufacturing industry has provided people with increasingly diverse digital products, such as computers, mobile phones, and televisions. As a crucial component of these digital products, the PCB board supports their operation. To ensure the performance of some PCB substrates, heat sinks are required to guarantee their proper functioning.

[0003] Traditionally, screw fastening involves one person using one electric screwdriver to fasten screws on heat sinks. In mass production, this requires multiple people and multiple machines to operate simultaneously, which not only greatly increases costs but also increases the labor intensity of workers and affects work efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic screw-locking device for heat sinks to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: An automatic screw-locking device for a heat sink includes a workbench. Side plates are provided on both sides of the upper surface of the workbench along its length. A connecting shaft is rotatably connected between the two ends of the two side plates via bearings. A driving mechanism is connected to one of the connecting shafts. The driving mechanism is mounted on the side plate. The two ends of the two connecting shafts are connected via pulleys and belts. Multiple sets of equally spaced support blocks for placing the heat sink are provided on the surfaces of the two belts, with each set consisting of four support blocks. U-shaped frames are provided on both sides of the two side plates. A left-right adjustment mechanism for driving the U-shaped frames to move left and right is provided on the side plates. An L-shaped frame is slidably connected to the horizontal section of the U-shaped frame. A front-back adjustment mechanism for driving the L-shaped frame to move back and forth is provided at the top of the U-shaped frame. A cylinder is mounted at the top of the L-shaped frame. A Z-shaped frame is fixedly connected to the bottom of the piston rod of the cylinder. The Z-shaped frame is slidably connected to the vertical section of the L-shaped frame. A screw-locking machine is mounted on the Z-shaped frame.

[0006] Preferably, the upper surface of the support block is provided with a right-angled limiting opening, and the limiting openings on the four support blocks form a rectangular structure.

[0007] Preferably, the two side plates are provided with multiple idlers at the screw-tightening station. The idlers are rotatably connected to the side plates through bearings, and the upper surface of the idlers is in contact with the bottom of the belt.

[0008] Preferably, an infrared transmitter and an infrared receiver are respectively installed on the two side plates at the bolt tightening positions.

[0009] Preferably, the left and right adjustment mechanism includes a first motor, a first lead screw, and a slide rod. The first lead screw is rotatably connected to the side wall of one of the side plates via a bearing, and the first motor is mounted on the side plate. The shaft of the first motor is connected to the first lead screw. A first threaded block is provided on a vertical section of the side wall of the U-shaped frame and is threadedly connected to the first lead screw. The slide rod is mounted on the side wall of the other side plate, and a slider is provided on the other vertical section of the side wall of the U-shaped frame and is slidably connected to the slide rod.

[0010] Preferably, the upper surface of the workbench is provided with limiting grooves on both sides at the bottom of the U-shaped frame, and the bottom of each of the two vertical sections of the U-shaped frame is provided with limiting blocks that are slidably connected to the limiting grooves.

[0011] Preferably, the front and rear adjustment mechanism includes a second lead screw and a second motor. The second lead screw is rotatably connected to the top of the U-shaped frame via a bearing, and the second motor is installed on the top side wall of the U-shaped frame. The shaft of the second motor is connected to the second lead screw. The back of the L-shaped frame is provided with a second threaded block that is threadedly connected to the second lead screw. The horizontal section surface of the U-shaped frame is provided with a first trapezoidal groove along its length direction, and the back of the L-shaped frame is provided with a first trapezoidal block that is slidably connected to the first trapezoidal groove.

[0012] Preferably, the vertical section surface of the L-shaped frame is provided with two symmetrically distributed second trapezoidal grooves, and the horizontal section sidewall of the Z-shaped frame located above is provided with a second trapezoidal block that is slidably connected to the second trapezoidal grooves.

[0013] The automatic screw-locking device for heat sinks according to this utility model has the following advantages:

[0014] This utility model only requires workers to pick up and place the heat sink, and the whole process is highly automated, which greatly reduces the labor intensity of workers. In addition, the setting of the support block not only realizes the limiting of the heat sink, but also facilitates the quick picking and placing of the heat sink. With the cooperation between the belt and the U-shaped frame, the screws on the heat sink can be tightened continuously, which greatly improves work efficiency and reduces production costs. It is highly practical. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 for Figure 1 A structural diagram from another perspective;

[0018] Figure 3 This is a schematic diagram of the structure of the workbench in this utility model;

[0019] Figure 4 This is a schematic diagram of the U-shaped frame in this utility model.

[0020] The markings in the diagram are as follows: 1. Workbench; 2. Side plate; 3. Connecting shaft; 4. Pulley; 5. Belt; 6. Drive mechanism; 7. U-shaped frame; 8. Left and right adjustment mechanism; 9. L-shaped frame; 10. Front and rear adjustment mechanism; 11. Cylinder; 12. Z-shaped frame; 13. Screw tightening machine; 14. Slide rod; 15. Slider; 16. Limiting groove; 17. First lead screw; 18. First motor; 19. Infrared receiver; 20. Roller; 21. Support block; 22. Limiting port; 23. Second lead screw; 24. Second motor; 25. First threaded block; 26. Limiting block; 27. First trapezoidal groove; 28. First trapezoidal block; 29. ​​Second trapezoidal groove; 30. Second trapezoidal block. Detailed Implementation

[0021] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0022] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0025] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0026] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of an automatic screw-locking device for a heat sink.

[0027] like Figure 1-4 As shown, this utility model discloses an automatic screw-locking device for a heat sink, comprising a workbench 1. Side plates 2 are provided on both sides of the upper surface of the workbench 1 along its length. A connecting shaft 3 is rotatably connected between the two ends of the two side plates 2 via bearings. A drive mechanism 6 is connected to one of the connecting shafts 3 and is mounted on the side plate 2. The two ends of the two connecting shafts 3 are connected via pulleys 4 and belts 5. Multiple sets of equally spaced support blocks 21 for placing the heat sink are provided on the surface of the two belts 5. Each set consists of four support blocks 21. A right-angled limiting opening 22 is provided on the upper surface of each support block 21. The limiting openings 22 on the four support blocks 21 form a rectangular structure. By setting the limiting openings 22 on the support blocks 21, when the heat sink is placed on it, the limiting openings 22 on the four support blocks 21 are located at the four corners of the heat sink for limiting, effectively preventing the heat sink from loosening during screw tightening. Multiple rollers 20 are installed on the two side plates 2 at the screw tightening station. The rollers 20 are rotatably connected to the side plates 2 through bearings, and the upper surface of the rollers 20 contacts the bottom of the belt 5. With the installation of the rollers 20, when the heat sink is transported to the screw tightening station, the bottom of the belt 5 will contact the upper surface of the rollers 20. The rollers 20 provide good support for the belt 5, so that the belt 5 will not sink due to suspension when tightening the screws on the heat sink.

[0028] U-shaped frames 7 are provided on both sides of the two side plates 2. The side plates 2 are provided with left and right adjustment mechanisms 8 for driving the U-shaped frames 7 to move left and right. The left and right adjustment mechanism 8 includes a first motor 18, a first lead screw 17 and a slide rod 14. The first lead screw 17 is rotatably connected to the side wall of one of the side plates 2 through a bearing. The first motor 18 is mounted on the side plate 2 and the shaft of the first motor 18 is connected to the first lead screw 17. A first threaded block 25 is provided on one vertical section of the side wall of the U-shaped frame 7 and is threadedly connected to the first lead screw 17. The slide rod 14 is mounted on the side wall of the other side plate 2 and a slider 15 is provided on the other vertical section of the side wall of the U-shaped frame 7 and is slidably connected to the slide rod 14. By starting the first motor 18, the first lead screw 17 is rotated. With the cooperation between the first threaded block 25, the slide rod 14 and the slider 15, the U-shaped frame 7 moves along the length of the worktable 1, thereby adjusting the left and right position of the screw tightening machine 13. Limiting grooves 16 are provided on both sides of the upper surface of the workbench 1 at the bottom of the U-shaped frame 7. Limiting blocks 26 that are slidably connected to the limiting grooves 16 are provided at the bottom of the two vertical sections of the U-shaped frame 7. The cooperation between the limiting blocks 26 and the limiting grooves 16 makes the U-shaped frame 7 more stable and reliable.

[0029] The horizontal section of the U-shaped frame 7 is slidably connected to the L-shaped frame 9. The top of the U-shaped frame 7 is provided with a front-to-back adjustment mechanism 10 for driving the L-shaped frame 9 to move back and forth. The front-to-back adjustment mechanism 10 includes a second lead screw 23 and a second motor 24. The second lead screw 23 is rotatably connected to the top of the U-shaped frame 7 through a bearing, and the second motor 24 is installed on the side wall of the top of the U-shaped frame 7. The shaft of the second motor 24 is connected to the second lead screw 23. The back of the L-shaped frame 9 is provided with a second threaded block that is threadedly connected to the second lead screw 23. The surface of the horizontal section of the U-shaped frame 7 is provided with a first trapezoidal groove 27 along its length direction. The back of the L-shaped frame 9 is provided with a first trapezoidal block 28 that is slidably connected to the first trapezoidal groove 27. By starting the second motor 24, the second lead screw 23 rotates. Under the action of the second threaded block and through the limiting action of the first trapezoidal groove 27 and the first trapezoidal block 28, the L-shaped frame 9 moves along the width direction of the workbench 1, thereby adjusting the front-to-back position of the screw tightening machine 13.

[0030] A cylinder 11 is mounted on the top of the L-shaped frame 9. A Z-shaped frame 12 is fixedly connected to the bottom of the piston rod of the cylinder 11. The Z-shaped frame 12 is slidably connected to the vertical section of the L-shaped frame 9. Two symmetrically distributed second trapezoidal grooves 29 are provided on the surface of the vertical section of the L-shaped frame 9. A second trapezoidal block 30 is provided on the side wall of the upper horizontal section of the Z-shaped frame 12, which is slidably connected to the second trapezoidal grooves 29. Through the cooperation between the second trapezoidal block 30 and the second trapezoidal grooves 29, the Z-shaped frame 12 is effectively limited, making the Z-shaped frame 12 more stable and reliable when the cylinder 11 drives the Z-shaped frame 12 to move up and down. A screw tightening machine 13 is mounted on the Z-shaped frame 12. Infrared transmitters and receivers 19 are installed on the two side plates 2 at the bolt tightening station, respectively. With the infrared transmitters and receivers 19, when the heat sink is transported to the bolt tightening station, it will be in the position of the infrared transmitter and receiver 19. At this time, the infrared receiver 19 will not receive the signal from the infrared transmitter, and will control the drive mechanism 6 to stop through the control system. At this time, the heat sink at the bolt tightening station can be tightened. The drive mechanism 6 consists of a motor and a reducer.

[0031] The working principle of this automatic screw-locking device for heat sinks is as follows: During use, the heat sink is placed between four support blocks 21. The drive mechanism 6 is activated, causing the belt 5 to move the heat sink to the screw-locking position. At this time, with the cooperation of the infrared transmitter and infrared receiver 19, the drive mechanism 6 stops. The screw-locking machine 13 is controlled by the left-right adjustment mechanism 8, the front-back adjustment mechanism 10, and the cylinder 11 to move left-right, front-back, and up-down to tighten the screws on the heat sink. After completion, the screw-locking machine 13 returns to its original position, and the drive mechanism 6 is activated again, causing the belt to continue moving the heat sink. The heat sink with the screws tightened continues to move downwards, while the heat sink awaiting screw-locking is in the screw-locking position to continue tightening, thus achieving uninterrupted screw-locking of the heat sink and greatly improving work efficiency.

[0032] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An automatic screw-locking device for a heat sink, characterized in that: The system includes a workbench (1), on both sides of the upper surface of the workbench (1) along its length, there are side plates (2), and the two ends of the two side plates (2) are rotatably connected by a connecting shaft (3) through a bearing. A drive mechanism (6) is connected to one of the connecting shafts (3). The drive mechanism (6) is mounted on the side plate (2). The two ends of the two connecting shafts (3) are connected by a pulley (4) and a belt (5). The surfaces of the two belts (5) are provided with multiple sets of equally spaced support blocks (21) for placing heat sinks. Each set consists of four support blocks (21). The two side plates (2) U-shaped frames (7) are provided on both sides of the U-shaped frame (7). A left-right adjustment mechanism (8) for driving the U-shaped frame (7) to move left and right is provided on the side plate (2). An L-shaped frame (9) is slidably connected to the horizontal section of the U-shaped frame (7). A front-back adjustment mechanism (10) for driving the L-shaped frame (9) to move back and forth is provided at the top of the U-shaped frame (7). A cylinder (11) is installed at the top of the L-shaped frame (9). A Z-shaped frame (12) is fixedly connected to the bottom of the piston rod of the cylinder (11). The Z-shaped frame (12) is slidably connected to the vertical section of the L-shaped frame (9). A screw tightening machine (13) is installed on the Z-shaped frame (12).

2. The automatic screw-locking device for a heat sink according to claim 1, characterized in that: The upper surface of the support block (21) is provided with a right-angled limiting port (22), and the limiting ports (22) on the four support blocks (21) form a rectangular structure.

3. The automatic screw-locking device for a heat sink according to claim 1, characterized in that: The two side plates (2) are provided with multiple rollers (20) at the screw tightening station. The rollers (20) are rotatably connected to the side plates (2) through bearings, and the upper surface of the rollers (20) is in contact with the bottom of the belt (5).

4. The automatic screw-locking device for a heat sink according to claim 1, characterized in that: An infrared transmitter and an infrared receiver (19) are respectively installed on the two side plates (2) at the bolt tightening positions.

5. The automatic screw-locking device for a heat sink according to claim 1, characterized in that: The left and right adjustment mechanism (8) includes a first motor (18), a first lead screw (17) and a slide rod (14). The first lead screw (17) is rotatably connected to the side wall of one of the side plates (2) through a bearing, and the first motor (18) is mounted on the side plate (2). The shaft of the first motor (18) is connected to the first lead screw (17). A first threaded block (25) is provided on the vertical section side wall of the U-shaped frame (7) and is threadedly connected to the first lead screw (17). The slide rod (14) is mounted on the side wall of the other side plate (2), and a slider (15) is provided on the other vertical section side wall of the U-shaped frame (7) and is slidably connected to the slide rod (14).

6. An automatic screw-locking device for a heat sink according to claim 1, characterized in that: The upper surface of the workbench (1) is provided with limiting grooves (16) at the bottom of the U-shaped frame (7) on both sides. The bottom of the two vertical sections of the U-shaped frame (7) is provided with limiting blocks (26) that are slidably connected to the limiting grooves (16).

7. An automatic screw-locking device for a heat sink according to claim 1, characterized in that: The front and rear adjustment mechanism (10) includes a second lead screw (23) and a second motor (24). The second lead screw (23) is rotatably connected to the top of the U-shaped frame (7) through a bearing. The second motor (24) is installed on the top side wall of the U-shaped frame (7). The shaft of the second motor (24) is connected to the second lead screw (23). The back of the L-shaped frame (9) is provided with a second threaded block that is threadedly connected to the second lead screw (23). The horizontal section surface of the U-shaped frame (7) is provided with a first trapezoidal groove (27) along its length direction. The back of the L-shaped frame (9) is provided with a first trapezoidal block (28) that is slidably connected to the first trapezoidal groove (27).

8. An automatic screw-locking device for a heat sink according to claim 1, characterized in that: The vertical section surface of the L-shaped frame (9) is provided with two symmetrically distributed second trapezoidal grooves (29), and the horizontal section side wall of the Z-shaped frame (12) located above is provided with a second trapezoidal block (30) that is slidably connected to the second trapezoidal grooves (29).

Images