Clamping mechanism for cooling fin machining

Abstract

The utility model discloses a clamping mechanism for processing a radiating fin, which adopts the following scheme that the clamping mechanism for processing the radiating fin comprises a bracket, and is characterized in that a workbench is arranged on the bracket, a slide way is arranged on the bracket, a transmission frame is connected to the slide way in a sliding manner, and a connecting frame is arranged at the central axis position of the transmission frame; a clamping mechanism is installed on the connecting frame, and a transmission mechanism is installed on the support. The transmission mechanism comprises a bearing plate, a rotating shaft is installed on the bearing plate, a connecting plate is rotatably installed on the rotating shaft, transmission rods are rotatably installed at the two ends of the connecting plate respectively, the transmission rods are rotatably connected with the transmission frame, and an air cylinder is installed on the support. The two groups of cylinders are stacked and mounted on two sides of the bracket, the top end connecting parts of the cylinders are fixedly connected with one of the transmission frames, and the cylinders drive the transmission frames to do linear motion. The utility model aims to provide the clamping mechanism for machining the cooling fin, so that the effect of self-adaptive positioning of the cooling fin is achieved while the feeding piece of the cooling fin is clamped during machining of the cooling fin.

Description

Technical Field

[0001] The utility model discloses a clamping mechanism for heat sink processing, which relates to the technical field of heat sink processing. Background Art

[0002] Heat sink processing is the process of manufacturing heat sinks. Heat sinks are usually used in electronic devices or mechanical devices to dissipate heat and reduce temperature. Heat sink processing usually requires a stable clamping mechanism to ensure that the workpiece maintains a stable position and posture during processing, provides stable clamping force and reliable support, so as to ensure processing quality and efficiency. During the whole processing process, various processing parameters need to be strictly controlled to ensure that the quality and performance of the heat sink meet the expected requirements.

[0003] For example, as shown in the patent number CN219725952U, a fixture for heat sink processing is characterized in that: it includes a base, the base is provided with at least two clamping plates, the clamping plates are used to abut against the bottom plate of the heat sink, a chute is opened in the top wall of the base along the horizontal direction, the clamping plates are slidably arranged in the chute along the direction of approaching or separating from the adjacent clamping plates, and a sliding component for driving the two clamping plates to approach or separate from each other is arranged in the chute; the sliding component includes a bidirectional screw, sliders and a rotating member, the bidirectional screw is rotatably arranged in the chute, at least two sliders are provided, the sliders correspond to the clamping plates one by one, the sliders are connected with the clamping plates, the sliders are slidably sleeved on the bidirectional screw, the sliders are threadedly connected with the bidirectional screw, and the rotating member is arranged on the base and used to drive the bidirectional screw to rotate; the rotating member is set as a handle, the handle is rotatably arranged on the base, the handle is fixedly connected with the bidirectional bolt; a gear is fixedly sleeved on the handle, and a positioning rod is hinged on the base, and the positioning rod is used to be inserted into the tooth groove on the gear.

[0004] The application of the above can clamp the heat sink, but it cannot perform adaptive positioning on the clamped heat sink, which may cause processing errors during heat sink processing and affect the quality of the product. Therefore, a clamping mechanism for heat sink processing is needed to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a clamping mechanism for heat sink processing, so as to achieve the effect of clamping the heat sink during processing and realizing the adaptive positioning of the heat sink at the same time.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A clamping mechanism for heat sink processing, including a bracket, characterized in that: a workbench is installed on the bracket, a slideway is installed on the bracket, a transmission frame is slidably connected to the slideway, a connecting frame is installed at the central axis position of the transmission frame, a clamping mechanism is installed on the connecting frame, a cylindrical protrusion is arranged at the central axis position of the transmission frame, a through groove is arranged at the central axis position of the connecting frame, and a transmission mechanism is installed on the bracket; the transmission mechanism includes a receiving plate, characterized in that: a rotating shaft is installed on the receiving plate, the receiving plate is connected to the rotating shaft through a bearing, a connecting plate is rotatably installed on the rotating shaft, transmission rods are rotatably installed at both ends of the connecting plate, the transmission rods are rotatably connected to the transmission frame, and a cylinder is installed on the bracket. There are two groups of cylinders stacked symmetrically on both sides of the bracket, the connecting part at the top of the cylinder is fixedly connected to one of the transmission frames, and the cylinder drives the transmission frame to move linearly.

[0008] Preferably, there are two groups of the cylindrical protrusions and they are symmetric with each other, and there are two groups of the through grooves and they are symmetric with each other.

[0009] Preferably, the driving mode of the rotating shaft is motor driving.

[0010] Preferably, there are two groups of cylinders stacked symmetrically on both sides of the bracket, the connecting part at the top of the cylinder is fixedly connected to one of the transmission frames, and the cylinder drives the transmission frame to move linearly.

[0011] Preferably, the clamping mechanism includes a runner frame, the shape of the runner frame is V-shaped, the V-shaped end of the runner frame is rotatably connected to the connecting frame, a torsion spring is arranged at the connection between the runner frame and the connecting frame, runners are rotatably installed at the V-shaped tips of the runner frame respectively, a limiting groove is arranged on the connecting frame, the position of the limiting groove is opposite to the position of the runner on the runner frame close to the center of the connecting frame, and there are four groups of the clamping mechanisms which are respectively installed on both sides of the connecting frame.

[0012] Preferably, the cylindrical protrusion is slidably connected to the through groove.

[0013] Preferably, the receiving plate is connected to the rotating shaft through a bearing.

[0014] Compared with the prior art, the beneficial effects of the present utility model are: through the coordinated movement of the transmission mechanism and the clamping mechanism, and both move towards the same center of the circle, the function of determining the center of the circle is realized. At the same time, through the elastic force provided by the torsion spring in the clamping mechanism and the cooperation of the runners and the workpiece in contact movement, the adaptive clamping of rectangular workpieces with different sizes is realized. When the transmission mechanism drives the transmission frame to continuously move towards the center and cooperates with the clamping mechanism to clamp the workpiece, the functions of the through groove and the cylindrical protrusion are that when the motor is still moving and the clamping mechanism is still moving continuously, a clamping margin is left for it to reduce the damage to the workpiece. Description of the Drawings

[0015] Figure 1 It is an overall schematic diagram of a clamping mechanism for heat sink processing;

[0016] Figure 2 for Figure 1 A view of the internal structure of a clamping mechanism for heat sink processing;

[0017] Figure 3 for Figure 2 A partial schematic diagram of a clamping mechanism for heat sink processing;

[0018] Among them, the reference numerals in the figure are:

[0019] 1. Bracket; 2. Workbench; 3. Clamping mechanism; 31. Rotating wheel; 32. Limiting groove; 33. Rotating wheel frame; 34. Torsion spring; 4. Slide; 5. Transmission frame; 51. Cylindrical protrusion; 52. Through groove; 6. Connecting frame; 7. Transmission mechanism; 71. Cylinder; 72. Attachment plate; 73. Rotating shaft; 74. Transmission rod; 75. Connecting plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Specific implementation cases:

[0022] like Figure 1 - Figure 2As shown in the figure, a clamping mechanism for heat sink processing includes a bracket 1, characterized in that: a workbench 2 is installed on the bracket 1, a slideway 4 is installed on the bracket 1, a transmission frame 5 is slidably connected to the slideway 4, a connecting frame 6 is installed at the central axis position of the transmission frame 5, a clamping mechanism 3 is installed on the connecting frame 6, two groups of symmetrically arranged cylindrical protrusions 51 are arranged at the central axis position of the transmission frame 5, two groups of symmetrically arranged through grooves 52 are arranged at the central axis position of the connecting frame 6, the cylindrical protrusions 51 are slidably connected with the through grooves 52, a transmission mechanism 7 is installed on the bracket 1, and the transmission mechanism 7 includes a receiving plate 72, characterized in that: a rotating shaft 73 is installed on the receiving plate 72, the driving mode of the rotating shaft 73 is motor-driven, the receiving plate 72 is connected to the rotating shaft 73 through a bearing (not marked in the figure), a connecting plate 75 is rotatably installed on the rotating shaft 73, transmission rods 74 are rotatably installed at both ends of the connecting plate 75, the transmission rods 74 are rotatably connected with the transmission frame 5, a cylinder 71 is installed on the bracket 1, two groups of the cylinders 71 are symmetrically installed on both sides of the bracket 1, the top connection part of the cylinder 71 is fixedly connected with one of the transmission frames 5, and the cylinder 71 drives the transmission frame 5 to move linearly. When starting to work, the workpiece is placed on the workbench 2, the motor installed below the rotating shaft 73 starts to rotate counterclockwise, the rotating shaft 73 rotates counterclockwise, drives the connecting plate 75 to rotate around the rotation center, the transmission rods 74 at both ends of the connecting plate 75 respectively pull the transmission frame 5 to move towards the center along the moving direction defined by the slideway 4, the clamping mechanism 3 is driven by the transmission frame 5 to approach the workpiece until the workpiece is clamped. The functions of the through grooves 52 and the cylindrical protrusions 51 are that when the motor is still moving and the clamping mechanism 3 is still moving continuously, a clamping allowance is left for it to reduce damage to the workpiece. After the work is completed, the motor rotates reversely, and the transmission mechanism 7 pulls the clamping mechanism 3 to move backward. After the clamping is completed, the function of the cylinder 71 is to limit the movement direction of the transmission frame 5 and make the whole structure more stable.

[0023] As Figure 3As shown in the figure, the clamping mechanism 3 includes a runner frame 33. The shape of the runner frame 33 is V-shaped. The V-shaped tail end of the runner frame 33 is rotatably connected to the connecting frame 6. A torsion spring 34 is provided at the connection between the runner frame 33 and the connecting frame 6. Runner wheels 31 are respectively rotatably installed at the V-shaped tips of the runner frame 33. A limiting groove 32 is provided on the connecting frame 6. The position of the limiting groove 32 is opposite to the position of the runner wheel 31 on the runner frame 33 that is close to the center of the connecting frame 6. There are four groups of clamping mechanisms 3, which are respectively installed on both sides of the connecting frame 6. Before the clamping mechanism 3 works, there is an initial state. The torsion spring 34 is always in a compressed state in the initial state, and the runner frame 33 is buckled inward towards the position close to the central axis of the connecting frame 6. When the runner wheel 31 touches the surface of the workpiece, the inner cavity of the V-shaped runner frame 33 is aligned with the corners of the rectangular workpiece. The runner wheel 31 moves along the edge, driving the torsion spring 34 to pull outwards. When the clamping mechanism 3 moves forward continuously, the workpiece is gradually clamped. The sizes of the two connecting frames 6 are fixed, and the clamping mechanism 3 is installed on its four sides. When clamping, the four groups of clamping mechanisms 3 always move towards the same center. Through the fine adjustment of the angle of the workpiece by the torsion spring 34, adaptive centering clamping is achieved. The movement range of the runner wheel 31 is limited to a certain extent. The maximum movement range is when the runner wheel 31 abuts against the limiting groove 32. When the work is completed, with the movement of the transmission mechanism 7, the torsion spring 34 returns to the initial state and the clamping ends.

[0024] In summary, through the coordinated movement of the transmission mechanism 7 and the clamping mechanism 3, and both move towards the same center, the function of determining the center is achieved. At the same time, through the elastic force provided by the torsion spring 34 in the clamping mechanism 3 and the cooperation of the contact movement between the runner wheel 31 and the workpiece, adaptive clamping of rectangular workpieces of different sizes is realized. When the transmission mechanism 7 drives the transmission frame 5 to continuously move towards the center and cooperates with the clamping mechanism 3 to clamp the workpiece, the functions of the through groove 52 and the cylindrical protrusion 51 are as follows: when the motor is still moving and the clamping mechanism 3 is still moving continuously, a clamping margin is left for it to reduce damage to the workpiece.

[0025] The above is only the preferred embodiment of the present application. The protection scope of the present application is not limited to the above embodiments. All technical solutions within this concept belong to the protection scope of the present application. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present application, several improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A clamping mechanism for heat sink processing, including a bracket (1), characterized in that: A workbench (2) is installed on the bracket (1). A slideway (4) is installed on the bracket (1). A transmission frame (5) is slidably connected to the slideway (4). A connecting frame (6) is installed at the central axis position of the transmission frame (5). A clamping mechanism (3) is installed on the connecting frame (6). A cylindrical protrusion (51) is arranged at the central axis position of the transmission frame (5). A through groove (52) is arranged at the central axis position of the connecting frame (6). A transmission mechanism (7) is installed on the bracket (1). The transmission mechanism (7) includes a receiving plate (72). It is characterized in that: a rotating shaft (73) is installed on the receiving plate (72). A connecting plate (75) is rotatably installed on the rotating shaft (73). Transmission rods (74) are rotatably installed at both ends of the connecting plate (75). The transmission rods (74) are rotatably connected to the transmission frame (5). A cylinder (71) is installed on the bracket (1).

2. The clamping mechanism for heat sink processing according to claim 1, wherein: There are two groups of the cylindrical protrusions (51) which are symmetric to each other. There are two groups of the through grooves (52) which are symmetric to each other.

3. The clamping mechanism for processing a heat sink according to claim 1, wherein: The driving mode of the rotating shaft (73) is motor-driven.

4. The clamping mechanism for processing a heat sink according to claim 1, wherein: There are two groups of cylinders (71) which are symmetrically installed on both sides of the bracket (1). The top connecting part of the cylinder (71) is fixedly connected to one of the transmission frames (5). The cylinder (71) drives the transmission frame (5) to perform a linear motion.

5. The clamping mechanism for processing a heat sink according to claim 1, wherein: The clamping mechanism (3) includes a runner frame (33). The shape of the runner frame (33) is V-shaped. The V-shaped tail end of the runner frame (33) is rotatably connected to the connecting frame (6). A torsion spring (34) is arranged at the connection position of the runner frame (33) and the connecting frame (6). Runners (31) are rotatably installed at the V-shaped tips of the runner frame (33). A limiting groove (32) is arranged on the connecting frame (6). The position of the limiting groove (32) is opposite to the position of the runner (31) on the runner frame (33) close to the center of the connecting frame (6). There are four groups of the clamping mechanisms (3) which are respectively installed on both sides of the connecting frame (6).

6. The clamping mechanism for processing a heat sink according to claim 1, wherein: The cylindrical protrusion (51) is slidably connected to the through groove (52).

7. The clamping mechanism for heat sink processing according to claim 1, characterized in that: The receiving plate (72) is connected to the rotating shaft (73) through a bearing.

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