Cooling fin pressing jig

Abstract

The utility model relates to the technical field of radiating fin processing, in particular to a radiating fin pressing jig. Comprising a rack, a pressing assembly arranged on the rack, a discharging assembly used in cooperation with the pressing assembly, an X-axis module used for driving the discharging assembly to move in the X-axis direction of the rack and a Y-axis module used for driving the X-axis module to move in the Y-axis direction of the rack. The discharging assembly comprises a frame body, a material containing base which is rotationally arranged on the frame body and used for containing the cooling fins, an overturning assembly used for driving the material containing base to overturn relative to the frame body, a plurality of limiting assemblies arranged on the material containing base and a positioning assembly used in cooperation with the overturning assembly. The multiple limiting assemblies are arranged in the circumferential direction of the material containing base and limit a PCB placed on the top face of the material containing base. The structure is compact, the design is reasonable, the requirement for installation work of cooling fins on the front face and the back face of a PCB is met, positioning is accurate, the situation of position deviation of the cooling fins is avoided, and the installation precision of the cooling fins is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat sink processing, in particular to a heat sink pressing jig. Background Art

[0002] A heat sink is a component that dissipates heat for heat-prone electronic components on a PCB board. It is mostly made of aluminum alloy, brass or bronze in the shape of plates, sheets, or multiple sheets. In the existing heat sink installation process, the heat sink is generally placed on the PCB board first, and then the PCB board is placed on a carrier, and then the pressing device is driven to press and fix the heat sink on the PCB board, so that the thermal paste on the PCB board can be fixed and formed only after it is fully pressed and contacted with the heat sink. Then the other side of the PCB board is turned over and the above steps are repeated to complete the installation of the heat sink on both sides of the PCB board. However, when the PCB board is turned over, the position of the heat sink is easily deviated, the positioning effect is poor, the installation accuracy of the heat sink is reduced, and defective products are produced. Utility Model Content

[0003] The purpose of the utility model is to provide a heat sink pressing fixture to address the deficiencies in the prior art. The fixture has a compact structure and a reasonable design, meets the requirements for installing the heat sink on both sides of a PCB board, accurately positions the heat sink, avoids position deviation of the heat sink, and improves the installation accuracy of the heat sink.

[0004] To achieve the above-mentioned purpose, the utility model provides a heat sink pressing fixture, comprising a frame, a pressing assembly arranged on the frame, a feeding assembly used in conjunction with the pressing assembly, an X-axis module for driving the feeding assembly to move along the X-axis direction of the frame, and a Y-axis module for driving the X-axis module to move along the Y-axis direction of the frame. The feeding assembly comprises a frame, a placing seat rotatably arranged on the frame and used to place the heat sink, a flipping assembly used to drive the placing seat to flip relative to the frame, a limiting assembly arranged on the placing seat, and a positioning assembly used in conjunction with the flipping assembly. A plurality of limiting assemblies are provided, and the plurality of limiting assemblies are arranged around the circumference of the placing seat and form a limit for a PCB board placed on the top surface of the placing seat.

[0005] Preferably, the positioning assembly includes a first positioning rubber strip, a second positioning rubber strip spaced apart and arranged parallel to the first positioning rubber strip, a first positioning member and a second positioning member arranged between the first positioning rubber strip and the second positioning rubber strip, the first positioning member and the second positioning member have the same structure and are respectively located on both sides of the frame, the first positioning member includes a first mounting seat, a second mounting seat spaced apart from the first mounting seat, a rotating shaft rotatably arranged on the first mounting seat and the second mounting seat, and a positioning clamping head arranged on the rotating shaft, the outer sides of the first mounting seat and the second mounting seat are both provided with mounting holes, the positioning clamping head is provided with a positioning slot, and the positioning clamping head is clamped to the outer side of the material placing seat through the positioning slot.

[0006] Preferably, the limiting assembly comprises a limiting block, a limiting plate arranged on the limiting block, and a rotating shaft rod arranged at the connection between the limiting block and the limiting plate, and the limiting plate is rotatably connected to the limiting block via the rotating shaft rod.

[0007] Preferably, the limiting block is in an L-shaped structure, the limiting plate is in a trapezoidal structure, and a friction pad is provided at one end of the limiting plate away from the limiting block.

[0008] Preferably, the flipping assembly includes a flipping shaft arranged on a material placing seat, a driven pulley arranged on the flipping shaft, a driving motor arranged on the outside of a frame, a driving pulley drivingly connected to the driving motor, and a transmission belt drivingly connected between the driving pulley and the driven pulley, the frame is provided with a shaft seat, a bearing is provided on a side of the frame close to the flipping shaft, one end of the flipping shaft is connected to the shaft seat, and the other end of the flipping shaft passes through the bearing and is connected to the driven pulley.

[0009] Preferably, the pressing assembly includes a pressing plate, a driving cylinder for driving the pressing plate to move, and guide rods arranged on both sides of the driving cylinder, the guide rods are connected to the pressing plate, and the frame is provided with guide sleeves slidably connected to the guide rods.

[0010] The beneficial effects of the utility model are as follows: the structure is compact and the design is reasonable, which meets the requirements for installing the heat sink on both sides of the PCB board, has accurate positioning, avoids the position deviation of the heat sink, and improves the installation accuracy of the heat sink. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a schematic diagram of the structure of the discharge component of the utility model.

[0013] Figure 3 It is a schematic diagram of the structure of the limit assembly of the utility model.

[0014] Reference numerals include:

[0015] 1——Frame 11——Guide sleeve

[0016] 2——Pressing assembly 21——Pressing plate 22——Drive cylinder

[0017] 23 - Guide rod

[0018] 3——discharging assembly 31——frame 32——material placement seat

[0019] 33——Turning assembly 331——Turning shaft 332——Driven pulley

[0020] 333——driving motor 334——driving pulley 335——transmission belt

[0021] 34——Limiting assembly 341——Limiting block 342——Limiting plate

[0022] 343——rotating shaft 344——friction pad

[0023] 35——positioning assembly 351——first positioning rubber strip 352——second positioning rubber strip 353——first positioning member 3531——first mounting seat 3532——second mounting seat

[0024] 3533——rotating shaft 3534——positioning clamp 3535——mounting hole

[0025] 3536——Positioning slot

[0026] 354——Second positioning piece

[0027] 36——shaft seat 37——bearing

[0028] 4——X-axis module 5——Y-axis module. DETAILED DESCRIPTION

[0029] The utility model is described in detail below with reference to the accompanying drawings.

[0030] like Figures 1 to 3As shown, a heat sink pressing fixture of the utility model comprises a frame 1, a pressing component 2 arranged on the frame 1, a feeding component 3 used in conjunction with the pressing component 2, an X-axis module 4 for driving the feeding component 3 to move along the X-axis direction of the frame 1, and a Y-axis module 5 for driving the X-axis module 4 to move along the Y-axis direction of the frame 1. The feeding component 3 comprises a frame 31, a placing seat 32 rotatably arranged on the frame 31 and used to place the heat sink, a flipping component 33 for driving the placing seat 32 to flip relative to the frame 31, a limiting component 34 arranged on the placing seat 32, and a positioning component 35 used in conjunction with the flipping component 33. The limiting component 34 is provided with a plurality of them, and the plurality of limiting components 34 are arranged around the circumference of the placing seat 32 and form a limit for a PCB board placed on the top surface of the placing seat 32.

[0031] During operation, firstly, a plurality of heat sinks are placed in the corresponding material slots of the material slot holder 32. The material slot holder 32 is provided with a plurality of material slots, and the plurality of material slots are arranged in a rectangular array. Then, the PCB board is placed on the top surface of the material slot holder 32. At this time, the heat sink contacts the thermal paste of the PCB board, and then a plurality of limit assemblies 34 are used to abut and position at the four corners of the PCB board, thereby fixing the position of the PCB board on the material slot holder 32, so that the X-axis module 4 drives the material discharge assembly 3 to move along the X-axis direction of the frame 1, and then the Y-axis module 5 drives the X-axis module 4 to move along the Y-axis direction of the frame 1, thereby driving the PCB board to move along the X-axis direction and the Y-axis direction of the frame 1 and adjust the position, so that the pressing assembly 2 descends to press the PCB board, which helps the thermal paste on the PCB board to fully press and contact with the heat sink, fix the position of the heat sink, and then the flip assembly 33 drives the material slot holder 32 to flip relative to the frame 31, so that the material slot holder 32 fits and abuts against the positioning assembly 3. 5, and then further adjust the position of the material placement seat 32 through the X-axis module 4 and the Y-axis module 5, so that the pressing component 2 can accurately descend and press the material placement seat 32, so that the heat sink placed on the material placement seat 32 is pressed and formed tightly on the PCB board, thereby improving the pressing efficiency and pressing effect. After the pressing and forming work of the heat sink on one side of the PCB board is completed, the limiting component 34 is rotated to take out the PCB board, and then the PCB board is turned over, and the heat sink is correspondingly placed in the material placement groove of the material placement seat 32, and then the side of the PCB board to be installed with the heat sink is attached to the top surface of the material placement seat 32, and the limiting component 34 is rotated to fix the position of the PCB board, and the material placement seat 32 is driven to flip relative to the frame 31 through the turning component 33, so that the material placement seat 32 is attached and abutted against the positioning component 35, and the material placement seat 32 is lowered and pressed by the pressing component 2, so that the heat sink placed on the material placement seat 32 is pressed and formed tightly on the PCB board, thereby completing the installation of the heat sinks on both sides of the PCB board. The utility model has a compact structure and a reasonable design, meets the requirements for installing the heat sink on the front and back sides of the PCB board, accurately positions the heat sink, avoids position deviation of the heat sink, and improves the installation accuracy of the heat sink.

[0032] The positioning assembly 35 of this embodiment includes a first positioning rubber strip 351, a second positioning rubber strip 352 spaced apart from and arranged in parallel with the first positioning rubber strip 351, a first positioning member 353 and a second positioning member 354 arranged between the first positioning rubber strip 351 and the second positioning rubber strip 352, the first positioning member 353 and the second positioning member 354 having the same structure and being respectively located on both sides of the frame body 31, the first positioning member 353 includes a first mounting seat 3531, a second mounting seat 3532 spaced apart from the first mounting seat 3531, a rotating shaft 3533 rotatably arranged between the first mounting seat 3531 and the second mounting seat 3532, and a positioning clamping head 3534 arranged on the rotating shaft 3533, the outer sides of the first mounting seat 3531 and the second mounting seat 3532 are both provided with mounting holes 3535, the positioning clamping head 3534 is provided with a positioning card slot 3536, and the positioning clamping head 3534 is engaged with and clamped to the outer side of the material placing seat 32 through the positioning card slot 3536. Specifically, when the flip assembly 33 drives the material placement seat 32 to flip relative to the frame 31, the material placement seat 32 is in contact with the first positioning rubber strip 351 and the second positioning rubber strip 352. The adhesive of the first positioning rubber strip 351 and the second positioning rubber strip 352 will stick to the surface of the material placement seat 32, so as to fix the upper and lower positions of the material placement seat 32. The outer sides of the first mounting seat 3531 and the second mounting seat 3532 are both provided with mounting holes 3535. External screws are used to pass through the mounting holes 3535 and correspondingly fix the first mounting seat 3531 and the second mounting seat 3532. The mounting seat 3532 is located at the position of the frame 31, and the positioning clamp head 3534 flips back and forth between the first mounting seat 3531 and the second mounting seat 3532 through the rotating shaft 3533. The positioning clamp head 3534 is engaged with the outer side of the material placement seat 32 through the positioning slot 3536, thereby fixing the left and right positions of the material placement seat 32. Since the first positioning member 353 and the second positioning member 354 have the same structure and are respectively located on both sides of the frame 31, the positioning assembly 35 can position the material placement seat 32 in four directions of up, down, left and right.

[0033] The limiting assembly 34 of this embodiment includes a limiting block 341, a limiting plate 342 disposed on the limiting block 341, and a rotating shaft rod 343 disposed at the connection between the limiting block 341 and the limiting plate 342, wherein the limiting plate 342 is rotatably connected to the limiting block 341 via the rotating shaft rod 343. Specifically, the limiting plate 342 is rotatably connected to the limiting block 341 via the rotating shaft rod 343, so that the limiting plate 342 accurately presses and fixes the surface of the PCB board, and the positioning effect is good.

[0034] The limit block 341 of this embodiment is in an L-shaped structure, the limit plate 342 is in a trapezoidal structure, and a friction pad 344 is provided at one end of the limit plate 342 away from the limit block 341. Specifically, the limit block 341 is in an L-shaped structure, which effectively blocks the four corners of the PCB board and fixes the position of the PCB board in multiple directions. The limit plate 342 is pressed on the surface of the PCB board through the friction pad 344, increasing the friction force to more stably fix the position of the PCB board, and preventing the PCB board from falling and being damaged due to vibration or accidental touch.

[0035] The flip assembly 33 of this embodiment includes a flip shaft 331 arranged on the material placement seat 32, a driven pulley 332 arranged on the flip shaft 331, a driving motor 333 arranged on the outside of the frame 31, a driving pulley 334 drivingly connected to the driving motor 333, and a transmission belt 335 drivingly connected between the driving pulley 334 and the driven pulley 332. The frame 31 is provided with a shaft seat 36, and a bearing 37 is provided on one side of the frame 31 close to the flip shaft 331. One end of the flip shaft 331 is connected to the shaft seat 36, and the other end of the flip shaft 331 passes through the bearing 37 and is connected to the driven pulley 332. Specifically, the driving motor 333 drives the active pulley 334 to rotate, and the rotating active pulley 334 drives the driven pulley 332 to rotate through the transmission belt 335. Since the driven pulley 332 is connected to the flip shaft 331, it drives the flip shaft 331 set on the material placement seat 32 to rotate, so that the flip assembly 33 drives the material placement seat 32 to flip relative to the frame 31, with high transmission efficiency and smooth and reliable flipping.

[0036] The pressing assembly 2 of this embodiment includes a pressing plate 21, a driving cylinder 22 for driving the pressing plate 21 to move, and guide rods 23 arranged on both sides of the driving cylinder 22, wherein the guide rods 23 are connected to the pressing plate 21, and the frame 1 is provided with guide sleeves 11 slidably connected to the guide rods 23. Specifically, as a preferred embodiment, two guide rods 23 are provided and are spaced apart on both sides of the pressing plate 21. When the driving cylinder 22 drives the pressing plate 21 to move up and down, the pressing plate 21 is slidably connected to the guide sleeves 11 through the guide rods 23, which plays a good guiding and supporting role for the pressing plate 21.

[0037] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A heat sink pressing jig, characterized in that: The invention comprises a frame, a pressing assembly arranged on the frame, a material discharging assembly used in conjunction with the pressing assembly, an X-axis module for driving the material discharging assembly to move along the X-axis direction of the frame, and a Y-axis module for driving the X-axis module to move along the Y-axis direction of the frame. The material discharging assembly comprises a frame, a material placing seat rotatably arranged on the frame and used to place a heat sink, a flipping assembly used to drive the material placing seat to flip relative to the frame, a limiting assembly arranged on the material placing seat, and a positioning assembly used in conjunction with the flipping assembly. A plurality of limiting assemblies are provided, and the plurality of limiting assemblies are arranged around the circumference of the material placing seat and form a limit for a PCB board placed on the top surface of the material placing seat.

2. The heat sink pressing jig according to claim 1, characterized in that: The positioning assembly includes a first positioning rubber strip, a second positioning rubber strip spaced apart and arranged in parallel with the first positioning rubber strip, a first positioning member and a second positioning member arranged between the first positioning rubber strip and the second positioning rubber strip, the first positioning member and the second positioning member have the same structure and are respectively located on both sides of the frame, the first positioning member includes a first mounting seat, a second mounting seat spaced apart from the first mounting seat, a rotating shaft rotatably arranged on the first mounting seat and the second mounting seat, and a positioning clamping head arranged on the rotating shaft, the outer sides of the first mounting seat and the second mounting seat are both provided with mounting holes, the positioning clamping head is provided with a positioning slot, and the positioning clamping head is clamped to the outer side of the material placing seat through the positioning slot.

3. The heat sink pressing jig according to claim 1, characterized in that: The limiting assembly comprises a limiting block, a limiting plate arranged on the limiting block, and a rotating shaft rod arranged at the connection between the limiting block and the limiting plate, and the limiting plate is rotatably connected to the limiting block via the rotating shaft rod.

4. The heat sink pressing jig according to claim 3, characterized in that: The limiting block is in an L-shaped structure, the limiting plate is in a trapezoidal structure, and a friction pad is arranged at one end of the limiting plate away from the limiting block.

5. The heat sink pressing jig according to claim 1, characterized in that: The flip assembly includes a flip shaft arranged on a material placing seat, a driven pulley arranged on the flip shaft, a driving motor arranged outside a frame, a driving pulley connected to the driving motor, and a transmission belt connected between the driving pulley and the driven pulley. The frame is provided with a shaft seat, and a bearing is provided on a side of the frame close to the flip shaft. One end of the flip shaft is connected to the shaft seat, and the other end of the flip shaft passes through the bearing and is connected to the driven pulley.

6. The heat sink pressing jig according to claim 1, characterized in that: The pressing assembly includes a pressing plate, a driving cylinder for driving the pressing plate to move, and guide rods arranged on both sides of the driving cylinder. The guide rods are connected to the pressing plate, and the frame is provided with guide sleeves slidably connected to the guide rods.

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