Automatic screw locking machine for radiator

Abstract

The utility model belongs to the technical field of radiator machining, and particularly relates to an automatic screw locking machine for a radiator, which comprises an automatic screw feeding machine, a movable hole arranged on a feeding track of the automatic screw feeding machine and used for controlling screws to fall off, and a power-losing electromagnet used for controlling the movable hole to be opened and closed. A positioning mechanism used for fixing a radiator is arranged below the feeding track, a driving assembly capable of enabling the positioning mechanism to move is arranged below the positioning mechanism, a limiting plate is arranged on the positioning mechanism, a plurality of matching holes are formed in the limiting plate, and the matching holes correspond to screw holes in the radiator. The screws fall into the matching holes by controlling opening and closing of the movable holes and driving the positioning mechanism to move through the driving assembly, and the screws are tightened through the locking mechanism. Through the ingenious arrangement of the assemblies, the mode that a traditional locking mechanism sucks screws one by one for tightening is changed, the screws can directly and accurately fall into screw holes of a radiator, and therefore the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of radiator processing technology, specifically relating to an automatic screw fastening machine for radiators. Background Technology

[0002] In today's fiercely competitive market, businesses face increasing pressure to control costs, making precise cost control and efficiency improvement crucial for competitiveness. The drawbacks of traditional manual production models are becoming increasingly apparent, failing to meet the demands of efficient production and cost optimization. In graphics card heatsink manufacturing, the screw-tightening process is critical. Workers repeatedly tighten screws for extended periods, leading to high labor intensity, fatigue, significantly reduced efficiency, and increased errors. Precise torque control during screw tightening is difficult; too little torque can cause screws to loosen, affecting heat dissipation or even damaging the graphics card, while too much torque can cause screws to slip, rendering the heatsink unusable. These frequent errors significantly increase costs. Furthermore, the low efficiency of manual labor forces companies to invest substantial manpower to complete tasks, further driving up labor costs and weakening market competitiveness.

[0003] Existing automatic screw fastening machines are designed using PLC software and have powerful control functions. They mainly consist of a screw feeding mechanism, a positioning mechanism, and a fastening mechanism. The existing automatic screw fastening machine uses an automatic screw feeder to deliver the screw to a fixed position. The fastening mechanism, through a configured electric screwdriver, pneumatic screwdriver, or servo motor, moves above the automatic screw feeder according to the program settings, picks up the screw using magnetic force, attraction, or other methods, and then moves with the screw to the position on the radiator where the screw needs to be fastened, performing the screw-tightening action. The above operation is repeated to complete the tightening of the screws required for the radiator.

[0004] However, the radiator contains many screws, and this feeding method results in low efficiency of the screw-driving machine, which seriously affects the production efficiency of the screw-driving machine and cannot meet the usage requirements. Therefore, it is urgent to develop a solution that can improve the screw tightening efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an automatic screw fastening machine for radiators, which aims to solve the technical problem of low working efficiency of existing automatic screw fastening machines.

[0006] To achieve the above objectives, this utility model provides an automatic screw fastening machine for radiators, characterized in that it includes an automatic screw feeder, a positioning mechanism, and a fastening mechanism. The automatic screw feeder consists of a feeding device and a feeding track. The feeding track has multiple movable holes for controlling the screws to fall off the feeding track. Each movable hole contains a magnet and a de-energized electromagnet, a limit rod, and a tension spring for controlling the opening and closing of the movable hole through cooperation with the magnet. A through hole is provided below each movable hole. Below the feeding track, multiple positioning mechanisms for fixing the radiator are provided. Below each positioning mechanism is a drive assembly that allows the positioning mechanism to move. A support plate is provided on the positioning mechanism, and a limit plate is provided on the support plate. A lifting assembly is provided on one side of the limit plate. The limit plate can fit against the radiator under the action of the lifting assembly. The limit plate has multiple mating holes, which correspond to the screw holes on the radiator. By controlling the opening and closing of the movable holes and driving the positioning mechanism through the drive assembly, the screws fall into the mating holes, and the fastening mechanism tightens the screws.

[0007] Preferably, the feeding device screens, arranges, detects, and distributes screws through vibration, while the vibration of the feeding device causes the screws on the feeding track to move away from the feeding device.

[0008] Preferably, there are multiple movable holes located above the feeding track, and movable holes are provided on both sides of the feeding track. The spacing between each movable hole is consistent with the vertical spacing between the screw holes on the radiator, so that by moving the radiator left and right, the screw holes on the radiator can be aligned with one of the movable holes respectively.

[0009] Preferably, the through hole is provided through the feeding track and is symmetrically arranged in the middle position of the feeding track. The through hole is located below the movable hole, and the diameter of the through hole is the same as the diagonal length of the movable hole. The size of the through hole is the same as the size of the screw head so that the screw can fall smoothly into the positioning mechanism through the through hole.

[0010] Preferably, the magnet is disposed in the movable hole. In the initial state, the front end face and the upper end face of the magnet are flush with the front end face and the upper end face of the feeding track where they are located, respectively. A de-energized electromagnet is provided behind the magnet. The de-energized electromagnet is fixed on the feeding track. The de-energized electromagnet is magnetic when it is not energized and demagnetized when it is energized. The magnetic poles on the adjacent sides of the magnet and the de-energized electromagnet are in the same state.

[0011] Preferably, a limiting rod is provided between the de-energized electromagnet and the magnet. One end of the limiting rod passes through the de-energized electromagnet, and the other end is fixedly connected to the magnet. A limiting block is provided at the end of the limiting rod that passes through the de-energized electromagnet. A reserved hole is provided on the feeding track behind the limiting block for the movement of the limiting block. The setting of the limiting block restricts the range of motion of the magnet.

[0012] Preferably, the two ends of the tension spring are fixedly connected to a magnet and a de-energized electromagnet, respectively. When the de-energized electromagnet is not energized, the tension spring is in a stretched state. When the de-energized electromagnet is energized and demagnetized, the magnet and the de-energized electromagnet are attracted under the tension of the tension spring, causing the movable hole to open.

[0013] Preferably, the driving component drives the support plate to move left and right, and a lifting component and a positioning component are fixedly provided above the support plate. The lifting component is used to raise or lower the limiting plate.

[0014] Preferably, one side of the limiting plate is fixedly connected to the lifting assembly, and the opening and closing of the limiting plate is controlled by the driving of the lifting assembly.

[0015] The automatic screw-fastening machine for radiators provided in this embodiment of the utility model has at least one of the following technical effects:

[0016] This utility model discloses an automatic screw fastening machine for radiators. By using the through hole on the feeding track of the automatic screw feeder and the positioning mechanism, it eliminates the traditional method of the fastening mechanism picking up screws one by one. Instead, the screws fall directly into the mating holes corresponding to the screw holes of the radiator, reducing the time for the fastening mechanism to pick up and move screws. This greatly shortens the tightening cycle of a single screw, thereby significantly improving the overall work efficiency and meeting the production demand for efficiency.

[0017] This utility model discloses an automatic screw fastening machine for radiators. The opening and closing of the holes on the automatic screw feeder's feeding track are precisely controlled by a de-energized electromagnet, which can stably release screws to the designated positions as needed. At the same time, the limiting plate on the positioning mechanism fits tightly with the radiator, and the mating holes on the limiting plate are precisely set to correspond to the screw holes on the radiator. This ensures the accuracy of the screw's falling position, reduces installation problems caused by screw position deviations, and further improves the assembly quality of the product.

[0018] This utility model discloses an automatic screw fastening machine for radiators. The equipment has a reasonable structural design. By adjusting the parameters of the positioning mechanism and the feeding track in the screw feeder, it can adapt to the screw fastening work of different models and specifications of radiators. It has strong versatility and adaptability, which helps enterprises cope with diversified production needs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A perspective view of an automatic screw fastening machine for radiators provided for an embodiment of this utility model.

[0021] Figure 2 This is a top view of an automatic screw fastening machine for radiators provided in an embodiment of the present utility model.

[0022] Figure 3 for Figure 2 Sectional view at point AA.

[0023] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0024] The following are the labeling elements in the figure:

[0025] 10—Automatic nail feeder; 11—Feeding device; 12—Feeding track; 121—Modible hole

[0026] 122—Through hole 123—Magnet 124—De-energized electromagnet

[0027] 125—Limit rod; 126—Tension spring; 20—Positioning mechanism; 21—Drive assembly

[0028] 22—Support plate 23—Lifting assembly 24—Positioning assembly 25—Limit plate

[0029] 251—Matching hole 30—Locking mechanism. Detailed Implementation

[0030] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 this utility model.

[0032] 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.

[0033] 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 or an electrical 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.

[0034] In one embodiment of this utility model, such as Figure 1-4 As shown, an automatic screw fastening machine for radiators is provided, including an automatic screw feeder 10, a positioning mechanism 20, and a fastening mechanism 30.

[0035] The automatic nail feeder 10 uses a vibratory feeder to screen, arrange, detect, distribute, and transport screws. Below the automatic nail feeder 10 is a positioning mechanism 20, which has multiple positions. The positioning mechanism 20 serves to fix the radiator and can move left and right, thus cooperating with the automatic nail feeder 10 to allow screws to fall into it. Above the positioning mechanism 20 is a locking mechanism 30, which can move back and forth and up and down relative to the positioning mechanism 20. In coordination with the left and right movement of the positioning mechanism 20, it tightens screws at different positions.

[0036] The automatic nail feeder 10 consists of a feeding device 11 and a feeding track 12. The feeding device 11 screens, arranges, detects, and divides screws by vibration. The feeding track 12 is provided in front of the feeding device 11. The feeding track 12 serves to make the screws screened, arranged, detected, and divided by the feeding device 11 move in an orderly manner away from the feeding device 11 by the vibration of the feeding device 11.

[0037] The feeding track 12 is provided with a movable hole 121, a through hole 122, a magnet 123, a de-energized electromagnet 124, a limit rod 125, and a tension spring 126.

[0038] Multiple movable holes 121 are provided above the feeding track 12, and movable holes 121 are provided on both sides of the feeding track 12. The spacing between each movable hole 121 is consistent with the vertical spacing between the screw holes on the heat sink. This allows the screw holes on the heat sink to correspond to one of the movable holes 121 by moving the heat sink left and right. The movable holes 121 serve to install the magnet 123 and the de-energized electromagnet 124 without affecting the feeding track 12's conveying of screws. They also allow the magnet 123 to move and allow the screw to fall off the upper surface of the feeding track 12 when the magnet 123 comes into contact with the de-energized electromagnet 124.

[0039] The through hole 122 is provided through the feeding track 12 and is symmetrically arranged in the middle of the feeding track 12, located below the movable hole 121. The diameter of the through hole 122 is the same as the diagonal length of the movable hole 121. The size of the through hole 122 is the same as the size of the screw head so that the screw can fall smoothly into the positioning mechanism 20 through the through hole 122. The through hole 122 serves to keep the screw in the correct direction and fall smoothly into the positioning mechanism 20.

[0040] The magnet 123 is disposed in the movable hole 121. The front end face and the upper end face of the magnet 123 are respectively flush with the front end face and the upper end face of the feeding track 12 in which they are located, so that the screw can move forward smoothly under the vibration of the feeding device 11.

[0041] A de-energized electromagnet 124 is fixedly mounted on the feeding track 12 behind the magnet 123. The de-energized electromagnet 124 is magnetic when it is not energized and demagnetized when it is energized. On the side where the magnet 123 and the de-energized electromagnet 124 are adjacent to each other, the magnetic poles are in the same state. Like magnetic poles repel each other, and the two will have a repulsive effect, so that the magnet 123 is kept in a position flush with the feeding track 12.

[0042] A limiting rod 125 is provided between the de-energized electromagnet 124 and the magnet 123. One end of the limiting rod 125 passes through the de-energized electromagnet 124, and the other end is fixedly connected to the magnet 123. A limiting block (not shown) is provided at the end of the limiting rod 125 that passes through the de-energized electromagnet 124. A reserved hole for the movement of the limiting block is provided on the feeding track 12 behind the limiting block. The setting of the limiting block restricts the range of motion of the magnet 123.

[0043] A tension spring 126 is fitted on the limiting rod 125. The two ends of the tension spring 126 are fixedly connected to the magnet 123 and the de-energized electromagnet 124, respectively. When the de-energized electromagnet 124 is not energized, the tension spring 126 is in a stretched state. When the de-energized electromagnet 124 is energized and demagnetized, the magnet 123 and the de-energized electromagnet 124 are attracted under the tension of the tension spring 126, so that the movable hole 121 is opened.

[0044] The positioning mechanism 20 consists of a drive assembly 21, a support plate 22, a lifting assembly 23, a positioning assembly 24, and a limiting plate 25. The drive assembly 21 drives the support plate 22 to move left and right. The lifting assembly 23 and the positioning assembly 24 are fixedly installed above the support plate 22. The lifting assembly 23 raises or lowers the limiting plate 25, and the positioning assembly 24 places the radiator and fixes its position.

[0045] A limiting plate 25 is provided above the positioning component 24. One side of the limiting plate 25 is fixedly connected to the lifting component 23. The opening and closing of the limiting plate 25 is controlled by the lifting component 23. The limiting plate 25 assists the positioning component 24 in fixing the heat sink. The limiting plate 25 has multiple mating holes 251, which correspond one-to-one with the screw holes on the heat sink. The mating holes 251 assist the screw holes on the heat sink in fixing screws that fall through the through hole 122.

[0046] The working principle of this utility model is as follows: An automatic screw fastening machine for radiators operates as follows: Positioning component 24 moves to the right side of the automatic screw feeder 10 under the action of driving component 21. Lifting component 23 drives limiting plate 25 to open relative to positioning component 24, allowing the radiator to be placed into the positioning component 24. Lifting component 23 then drives limiting plate 25 to close relative to positioning component 24. Positioning component 24 moves below the automatic screw feeder 10 under the action of driving component 21. Screws, under the action of feeding device 11, move along feeding track 12 away from the feeding device. The screw moves in the direction of position 11, driving the positioning component 24 to move left and right so that the mating hole 251 on the limiting plate 25 closest to the feeding device 11 corresponds to the movable hole 121 on the feeding track 12 closest to the feeding device 11. After the screw moves above the movable hole 121, the control center can control the de-energized electromagnet 124 to be demagnetized through the set visual recognition system or sensor, and the tension spring 126 pulls the magnet 123 to attract the de-energized electromagnet 124. The movable hole 121 opens, and the screw falls into the mating hole through the through hole 122. In step 251, the de-energized electromagnet 124 is then de-energized, generating magnetism and causing magnet 123 to reset. The next screw continues to move forward through the first movable hole 121. At this time, the positioning component 24 moves left and right, aligning the second movable hole 121 with the second screw hole. When the screw reaches above the second movable hole 121, the above-mentioned operations of controlling the de-energized electromagnet 124 to demagnetize are repeated to open the movable hole 121, and the screw falls into the second mating hole 251. After all screws are placed in each screw hole, the positioning component 24 moves to the left. Below the locking mechanism 30, the drive positioning component 24 is finely adjusted left and right, cooperating with the back and forth movement of the locking mechanism 30 to complete the locking of the screw in the screw hole. At this time, the feeding device 11 inserts the screw into the heat sink in another positioning component 24. After the locking mechanism 30 completes the locking of the heat sink in the first positioning component 24, it can directly lock the screw in the next heat sink. At the same time, the feeding device 11 inserts the screw into the next heat sink, realizing a high-efficiency screw locking operation.

[0047] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic screw-fastening machine for radiators, characterized in that: The device includes an automatic nail feeder, a positioning mechanism, and a locking mechanism. The automatic nail feeder consists of a feeding device and a feeding track. The feeding track has multiple movable holes for controlling the screws to fall out of the feeding track. Each movable hole contains a magnet and a de-energized electromagnet, a limit rod, and a tension spring that cooperate with the magnet to control the opening and closing of the movable hole. A through hole is provided below each movable hole. Below the feeding track are multiple positioning mechanisms for fixing the radiator. Below each positioning mechanism is a drive assembly that allows the positioning mechanism to move. A support plate is provided on the positioning mechanism, and a limit plate is provided on the support plate. A lifting assembly is provided on one side of the limit plate. The limit plate can fit against the radiator under the action of the lifting assembly. The limit plate has multiple mating holes that correspond to the screw holes on the radiator. By controlling the opening and closing of the movable holes and the movement of the positioning mechanisms driven by the drive assembly, the screws fall into the mating holes, and the locking mechanism tightens the screws.

2. The automatic screw fastening machine for radiators according to claim 1, characterized in that: The feeding device uses vibration to screen, arrange, detect, and distribute screws. At the same time, the vibration of the feeding device causes the screws on the feeding track to move away from the feeding device.

3. The automatic screw fastening machine for radiators according to claim 1, characterized in that: There are multiple movable holes located above the feeding track, and movable holes are provided on both sides of the feeding track. The spacing between each movable hole is consistent with the vertical spacing between the screw holes on the radiator, so that by moving the radiator left and right, the screw holes on the radiator can be aligned with one of the movable holes respectively.

4. An automatic screw-fastening machine for radiators according to claim 1, characterized in that: The through hole is provided through the feeding track and is symmetrically located in the middle of the feeding track. The through hole is located below the movable hole, and the diameter of the through hole is the same as the diagonal length of the movable hole. The size of the through hole is the same as the size of the screw head so that the screw can fall smoothly into the positioning mechanism through the through hole.

5. An automatic screw fastening machine for radiators according to claim 1, characterized in that: The magnet is located in the movable hole. In the initial state, the front end face and the upper end face of the magnet are flush with the front end face and the upper end face of the feeding track where they are located, respectively. A de-energized electromagnet is provided behind the magnet. The de-energized electromagnet is fixed on the feeding track. The de-energized electromagnet is magnetic when it is not energized and is demagnetized when it is energized. The magnetic poles on the adjacent sides of the magnet and the de-energized electromagnet are in the same state.

6. An automatic screw fastening machine for radiators according to claim 1, characterized in that: A limiting rod is provided between the de-energized electromagnet and the magnet. One end of the limiting rod passes through the de-energized electromagnet, and the other end is fixedly connected to the magnet. A limiting block is provided at the end of the limiting rod that passes through the de-energized electromagnet. A reserved hole is provided on the feeding track behind the limiting block for the movement of the limiting block. The setting of the limiting block restricts the range of motion of the magnet.

7. An automatic screw fastening machine for radiators according to claim 1, characterized in that: The two ends of the tension spring are fixedly connected to the magnet and the de-energized electromagnet, respectively. When the de-energized electromagnet is not energized, the tension spring is in a stretched state. When the de-energized electromagnet is energized and demagnetized, the magnet and the de-energized electromagnet are attracted under the tension of the tension spring, causing the movable hole to open.

8. An automatic screw fastening machine for radiators according to claim 1, characterized in that: The drive assembly drives the support plate to move left and right. A lifting assembly and a positioning assembly are fixedly installed above the support plate. The lifting assembly raises or lowers the limiting plate.

9. An automatic screw fastening machine for radiators according to claim 1, characterized in that: The limiting plate is fixedly connected to the lifting assembly on one side, and the opening and closing of the limiting plate is controlled by the driving control of the lifting assembly.

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