Rapid positioning mechanism for cooling fin machining

Abstract

The utility model discloses a quick positioning mechanism for processing a radiating fin, and provides the following scheme that the quick positioning mechanism for processing the radiating fin comprises a case, a positioning mechanism is mounted on the case, and a working mechanism is mounted on the case; the positioning mechanism comprises a workbench, a rotating shaft is rotationally connected to the workbench, a first gear is installed on the rotating shaft, longitudinal racks are installed at the symmetrical positions of the two sides of the first gear and slidably connected with the workbench, a limiting block is arranged on the workbench, a positioning frame is installed on the longitudinal racks, and a machine cover is arranged on the first gear. The machine cover is fixedly connected with the workbench, a connecting disc is arranged below the machine cover, a second gear is installed above the connecting disc, a transverse rack is installed on the second gear, a limiting block is arranged on the connecting disc, and a positioning frame is installed on the transverse rack. The utility model aims to provide the quick positioning mechanism for processing the radiating fins, so that the effect of quickly positioning and clamping the radiating fins with different sizes is achieved.

Description

Technical Field

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

[0002] Heat sink processing refers to the process of manufacturing heat sinks. Heat sinks are usually used in electronic devices or mechanical devices for heat dissipation to prevent the devices from being damaged due to overheating. Milling processing of heat sinks is a common processing method, which can be carried out by a milling machine. When clamping and positioning a heat sink, an accurate fixture is used to fix the heat sink on the milling machine to ensure that the workpiece is stable and does not move. Measuring tools (such as micrometers, parallel rulers) are used to accurately position the workpiece to ensure that the dimensions after milling meet the design requirements.

[0003] In the previous positioning technology, it is rather troublesome to use measuring tools for precise positioning when measuring and positioning heat sink components to be processed with different sizes, which takes a lot of time and reduces the processing efficiency. Therefore, a quick positioning mechanism for heat sink processing is needed to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a quick positioning mechanism for heat sink processing, so as to achieve the effect of quickly positioning and clamping heat sinks with different sizes.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A quick positioning mechanism for heat sink processing, including a chassis, on which a positioning mechanism and a working mechanism are installed; the positioning mechanism includes a workbench, on which a rotating shaft is rotatably connected, a first gear is installed on the rotating shaft, longitudinal racks are symmetrically installed on both sides of the first gear, the longitudinal racks are slidably connected to the workbench, a limiting block is arranged on the workbench, a positioning frame is installed on the longitudinal rack, a machine cover is arranged on the first gear, the machine cover is fixedly connected to the workbench, a connecting disk is arranged below the machine cover, a second gear is installed above the connecting disk, transverse racks are symmetrically installed on both sides of the second gear, the longitudinal racks are slidably connected to the connecting disk, a limiting block is arranged on the connecting disk, a positioning frame is installed on the transverse rack, the positioning frame is fixedly connected to the transverse rack, and the positioning frame is slidably connected to the machine cover.

[0006] Preferably, the driving mode of the positioning mechanism is motor driving.

[0007] Preferably, the limiting block abuts against the flat side of the longitudinal rack, and the limiting block abuts against the flat side of the transverse rack.

[0008] Preferably, a limiting chute is provided at the connection between the positioning frame and the workbench. The positioning frame is fixedly connected to the longitudinal rack, and the positioning frame is slidably connected to the workbench. A limiting chute is provided at the connection between the positioning frame and the connecting disc to limit the linear motion and the moving distance of the positioning frame.

[0009] Preferably, the interior of the machine cover is hollow and is slidably connected to the rotating shaft.

[0010] Preferably, the transverse rack is distributed perpendicular to the longitudinal rack. The first gear and the second gear are of the same size and number of teeth. The length and the number of teeth of the transverse rack and the longitudinal rack are the same.

[0011] Preferably, a spring is provided at the upper end of the positioning frame. A contact plate is installed on the spring. Sliding plates are symmetrically installed on both sides of the contact plate, and the sliding plates are slidably connected to the positioning frame.

[0012] Preferably, a limiting groove is provided at the connection between the top surface of the machine cover and the positioning frame to limit the linear motion of the positioning frame.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: By controlling the rotation of the rotating shaft by a motor, driving the rotation of the first gear and the second gear, so that the longitudinal rack and the transverse rack drive the positioning frame to approach or move away from the central axis position of the rotating shaft, to realize the central positioning and the contact clamping of the heat sink to be processed. Through the adaptive contraction of the spring, when the four groups of positioning frames move simultaneously, after two corresponding positioning frames have contacted the surface of the heat sink to be processed, they can still continue to move and clamp until the other two corresponding positioning frames clamp the side surfaces of the remaining two heat sinks to be processed, realizing the clamping of rectangular heat sinks to be processed with different sizes, and having a wider application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an overall schematic diagram of a quick positioning mechanism for heat sink processing;

[0015] Figure 2 is Figure 1 the schematic diagram of the positioning mechanism of a quick positioning mechanism for heat sink processing in

[0016] Among them, each reference numeral in the figure:

[0017] 1, chassis; 2, working mechanism; 3, positioning mechanism; 31, workbench; 32, positioning frame; 321, sliding plate; 322, spring; 323, contact plate; 33, limiting chute; 34, limiting block; 35, machine cover; 351, limiting groove; 352, connecting disc; 36, rotating shaft; 361, second gear; 362, first gear; 37, longitudinal rack; 38, transverse rack. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Specific implementation case:

[0020] As Figure 1 shown, a quick positioning mechanism for heat sink processing includes a chassis 1, a positioning mechanism 3 is installed on the chassis 1, a working mechanism 2 is installed on the chassis 1, and the driving mode of the positioning mechanism 3 is motor drive;

[0021] The movement mode of the working mechanism 2 is a milling machine three-axis movement mechanism, and this movement mode is the prior art and will not be elaborated here.

[0022] The working principle is to place the heat sink to be processed on the positioning mechanism 3. After the heat sink is positioned and clamped, the working mechanism 2 performs milling operations on the heat sink to be processed.

[0023] As Figure 2As shown in the figure, the positioning mechanism 3 includes a workbench 31. A rotating shaft 36 is rotatably connected to the workbench 31. A first gear 362 is installed on the rotating shaft 36. Longitudinal racks 37 are symmetrically installed on both sides of the first gear 362. The longitudinal racks 37 are slidably connected to the workbench 31. A limiting block 34 is arranged on the workbench 31. The limiting block 34 abuts against the flat side of the longitudinal rack 37 to limit the linear movement of the longitudinal rack 37 without deviation. A positioning frame 32 is installed on the longitudinal rack 37. One side of the positioning frame 32 is connected to the longitudinal rack 37, and the other side of the positioning frame 32 is slidably connected to the workbench 31. A limiting chute 33 is arranged at the connection between the positioning frame 32 and the workbench 31 to limit the linear movement and the movement distance of the positioning frame 32. An engine cover 35 is arranged on the first gear 362. The interior of the engine cover 35 is hollow and is slidably connected to the rotating shaft 36. The engine cover 35 is fixedly connected to the workbench 31. A connecting disk 352 is arranged below the engine cover 35. A second gear 361 is installed above the connecting disk 352. Transverse racks 38 are symmetrically installed on both sides of the second gear 361. The longitudinal rack 37 is slidably connected to the connecting disk 352. A limiting block 34 is arranged on the connecting disk 352. The limiting block 34 abuts against the flat side of the transverse rack 38 to limit the linear movement of the transverse rack 38 without deviation. A positioning frame 32 is installed on the transverse rack 38. One side of the positioning frame 32 is connected to the transverse rack 38, and the other side of the positioning frame 32 is slidably connected to the engine cover 35. A limiting chute 33 is arranged at the connection between the positioning frame 32 and the connecting disk 352 to limit the linear movement and the movement distance of the positioning frame 32. The transverse rack 38 is distributed perpendicular to the longitudinal rack 37. The first gear 362 and the second gear 361 are of the same size and number of teeth. The transverse rack 38 and the longitudinal rack 37 are of the same length and number of teeth. A limiting groove 351 is arranged at the connection between the top surface of the engine cover 35 and the positioning frame 32 to limit the linear movement of the positioning frame 32;

[0024] Among them, the motor drives the first gear 362 to drive the longitudinal rack 37 to perform longitudinal linear movement under the action of the limiting chute 33. The motor drives the second gear 361 to drive the transverse rack 38 to perform transverse linear movement under the action of the limiting chute 33;

[0025] For the convenience of understanding, the movement directions of the two longitudinal racks 37 are assumed to be "left" and "right", and the movement directions of the transverse rack 38 are assumed to be "up" and "down";

[0026] When positioning and clamping the heat sink to be processed, the heat sink is first placed on the top surface of the machine cover 35, and the motor controls the rotation shaft 36 to rotate, driving the first gear 362 and the second gear 361 to rotate, so that the first gear 362 drives one of the longitudinal racks 37 to move linearly to the right, and the other longitudinal rack 37 to move linearly to the left, and the second gear 361 drives one transverse rack 38 to move linearly upward, and the other transverse rack 38 to move linearly downward. Because the first gear 362 and the second gear 361 have the same size and number of teeth, and the length and number of teeth of the transverse rack 38 and the longitudinal rack 37 are the same, When the transverse rack 38 and the longitudinal rack 37 move, the distance from the rotating shaft 36 is the same. The movement of the transverse rack 38 and the longitudinal rack 37 makes the positioning frame 32 approach or move away from the central axis position of the rotating shaft 36, and the movement distance is equal. When positioning and clamping the heat sink to be processed, the rotating shaft 36 rotates counterclockwise to drive the first gear 362 and the second gear 361 to rotate counterclockwise, and the outer ends of the transverse rack 38 and the longitudinal rack 37 are pulled close to the central axis position of the rotating shaft 36. The positioning frame 32 then approaches the central axis position of the rotating shaft 36 until the workpiece is clamped, thereby realizing the rapid positioning of the center of the heat sink to be processed;

[0027] After the heat sink is processed, the rotating shaft 36 rotates clockwise to drive the first gear 362 and the second gear 361 to rotate clockwise, and the outer ends of the transverse rack 38 and the longitudinal rack 37 move away from the central axis position of the rotating shaft 36, and the positioning frame 32 moves away from the central axis position of the rotating shaft 36, and the heat sink after processing is released;

[0028] During processing, the length and width of the rectangular heat sink to be processed are different, which will make the clamping unstable. In order to make the mechanism more applicable to clamping of different sizes, the specific implementation method is as follows:

[0029] A spring 322 is disposed at the upper end of the positioning frame 32, and a resisting plate 323 is mounted on the spring 322. Slide plates 321 are symmetrically mounted on both sides of the resisting plate 323, and the slide plates 321 are slidably connected to the positioning frame 32.

[0030] When the positioning frame 32 approaches the workpiece to be processed, the abutment plate 323 first abuts against the side surface of the workpiece, and the motor drives the positioning frame 32 to continue to approach, the spring 322 is squeezed and contracted, and the slide plate 321 contracts into the side surface of the positioning frame 32. The adaptive contraction of the spring 322 of this structure can adapt to the simultaneous movement of four groups of positioning frames 32. After the corresponding two groups of positioning frames 32 have contacted the surface of the heat sink to be processed, they can continue to move and clamp until the other two groups of corresponding positioning frames 32 clamp the remaining two side surfaces of the heat sink to be processed.

[0031] In summary, by controlling the rotation of the rotating shaft 36 by the motor, the first gear 362 and the second gear 361 are driven to rotate, so that the longitudinal rack 37 and the transverse rack 38 drive the positioning frame 32 to approach or move away from the central axis position of the rotating shaft 36, thereby realizing the central positioning and abutting clamping of the heat sink to be processed. Through the adaptive contraction of the spring 322, when the four groups of positioning frames 32 move simultaneously, after two corresponding positioning frames 32 have contacted the surface of the heat sink to be processed, they can still continue to move and clamp until the other two corresponding positioning frames 32 clamp the side surfaces of the remaining two heat sinks to be processed, realizing the clamping of rectangular heat sinks to be processed with different sizes, and having a wider application range.

[0032] The above are only the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above embodiments. All technical solutions within the scope of this concept belong to the protection scope of the present application. It should be noted that for those of ordinary skill in the art, 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 rapid positioning mechanism for heat sink processing, including a chassis (1), characterized in that: The chassis (1) is provided with a positioning mechanism (3), and the chassis (1) is provided with a working mechanism (2); The positioning mechanism (3) comprises a workbench (31), characterized in that: a rotating shaft (36) is rotatably connected to the workbench (31), a first gear (362) is installed on the rotating shaft (36), longitudinal racks (37) are symmetrically installed on both sides of the first gear (362), the longitudinal racks (37) are slidably connected to the workbench (31), a limiting block (34) is arranged on the workbench (31), a positioning frame (32) is installed on the longitudinal rack (37), a cover (35) is arranged on the first gear (362), and the cover (35) is symmetrically installed on both sides of the first gear (362). The machine cover (35) is fixedly connected to the platform (31), a connecting plate (352) is arranged below the machine cover (35), a second gear (361) is installed above the connecting plate (352), transverse racks (38) are installed symmetrically on both sides of the second gear (361), the longitudinal rack (37) is slidably connected to the connecting plate (352), a limiting block (34) is arranged on the connecting plate (352), a positioning frame (32) is installed on the transverse rack (38), the positioning frame (32) is fixedly connected to the transverse rack (38), and the positioning frame (32) is slidably connected to the machine cover (35).

2. The quick positioning mechanism for heat sink processing according to claim 1, characterized in that: The positioning mechanism (3) is driven by a motor.

3. The quick positioning mechanism for heat sink processing according to claim 1, wherein: The limit block (34) abuts against the flat side of the longitudinal rack (37), and the limit block (34) abuts against the flat side of the transverse rack (38).

4. A rapid positioning mechanism for heat sink processing according to claim 1, characterized in that: A limiting slide groove (33) is provided at the connection between the positioning frame (32) and the workbench (31); the positioning frame (32) is fixedly connected to the longitudinal rack (37); the positioning frame (32) is slidably connected to the workbench (31); and a limiting slide groove (33) is provided at the connection between the positioning frame (32) and the connecting plate (352) for limiting the linear motion and motion distance of the positioning frame (32).

5. The quick positioning mechanism for heat sink processing according to claim 1, wherein: The machine cover (35) is hollow inside and is slidably connected to the rotating shaft (36).

6. The quick positioning mechanism for processing a heat sink according to claim 1, characterized in that: The transverse rack (38) is distributed perpendicularly to the longitudinal rack (37); the first gear (362) and the second gear (361) have the same size and number of teeth; the transverse rack (38) and the longitudinal rack (37) have the same length and number of teeth.

7. A rapid positioning mechanism for heat sink processing according to claim 1, characterized in that: A spring (322) is provided at the upper end of the positioning frame (32), a resisting plate (323) is installed on the spring (322), sliding plates (321) are symmetrically installed on both sides of the resisting plate (323), and the sliding plates (321) are slidably connected to the positioning frame (32).

8. A rapid positioning mechanism for heat sink processing according to claim 1, characterized in that: A limiting groove (351) is provided at the connection between the top surface of the machine cover (35) and the positioning frame (32) for limiting the linear movement of the positioning frame (32).

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