Punch forming device for positioning groove of radiating fin of PCB (Printed Circuit Board)

Abstract

The utility model relates to the field of cooling fin production, in particular to a punch forming device for a positioning groove of a PCB cooling fin. The problems that in the prior art, cooling fins are inconvenient to take out after being punched, operation is tedious, and the machining efficiency of the cooling fins is reduced are solved. Through the arrangement of the stamping assembly, a stamping block can conduct stamping slotting on a mounting hole in the surface of a cooling fin body, a protruding block on the lower die can conduct stamping forming on a groove in the surface of the cooling fin body, automatic demolding of the cooling fin body is achieved through elastic force of a first spring and a second spring, operation is easy and convenient, and the efficiency is high. And meanwhile, the feeding assembly is arranged, automatic feeding and discharging of the cooling fin bodies can be achieved through movement of a moving block in the stamping process through the feeding assembly, the machining efficiency of the cooling fin bodies is further improved, and meanwhile potential safety hazards generated by manual operation are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat sink production, in particular to a device for punching and forming positioning grooves of heat sinks on a PCB board. Background Art

[0002] A heat sink is a device that dissipates heat from a heat source. In modern society, heat sinks are widely used. They can be used as heat sinks for electronic components such as CPUs, power tubes, line tubes, and amplifiers. They can also be used for daily heating, industrial heat exchange, and other applications. In order to improve the heat dissipation efficiency of aluminum alloy heat sinks, it is often necessary to stamp aluminum alloy sheets into heat sinks with certain shapes and patterns. During use, the existing stamping dies are prone to plastic deformation due to the pressure on the stamping materials. It is difficult to remove the heat sink after stamping, which makes it very cumbersome to remove the parts, lengthens the cycle time, and increases the workload, greatly reducing work efficiency. In addition, when loading the heat sink, it is usually done manually, which is cumbersome and has certain safety hazards. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] In order to solve the problem in the prior art that the heat sink is inconvenient to remove after stamping, the operation is cumbersome, and the heat sink processing efficiency is reduced.

[0005] (2) Technical solution

[0006] The technical solution of the utility model is: a PCB board heat sink positioning groove stamping forming device, comprising a base and a mounting frame fixedly connected to the top of the base and a heat sink body arranged above the base, a hydraulic cylinder is installed on the surface of the mounting frame, and a moving block is fixedly connected to the output end of the hydraulic cylinder, a stamping component is arranged above the base, and a feeding component is arranged on one side of the base surface;

[0007] The stamping assembly includes an upper die, a lower die, a sleeve, a first push block, a stamping groove, a first spring and a stamping block. The lower die is installed on the upper surface of the base, and the upper die is installed on the bottom surface of the moving block. The upper die surface is fixedly connected to one side of the heat sink body with four groups of sleeves arranged equidistantly, and the inside of the sleeve is fixedly connected to the stamping block. The outer wall surface of the stamping block is slidably sleeved with a first push block in an I-shaped structure, and the first push block is slidably connected to the inside of the sleeve. The surface of the stamping block is sleeved with a first spring, and the two ends of the first spring are respectively in conflict with the sleeve and the first push block. Stamping grooves are provided on the lower die and the inside of the stamping groove on one side close to the stamping block.

[0008] Preferably, when stamping the heat sink, the hydraulic cylinder is started to push the moving block downward, and then the moving block drives the multiple groups of sleeves to move downward through the upper die, and the heat sink body is limited by the multiple groups of first push blocks pressed against the surface of the heat sink body, and as the moving block moves downward, the multiple groups of first springs will squeeze and contract, so that the upper die pushes the multiple groups of stamping blocks and cooperates with the stamping groove to stamp the heat sink body. After the stamping is completed, the hydraulic cylinder drives the moving block to move upward, and the first push block will be pushed by the elastic force of the first spring to separate the heat sink body from the surface of the stamping block, thereby realizing rapid separation and demoulding of the heat sink body and completing the stamping and grooving of the mounting holes of the heat sink body. The operation is simple and convenient, and the processing efficiency of the heat sink body is improved.

[0009] Furthermore, the bottom end of the first push block is fixedly connected with a rubber ring pad, and the bottom end of the stamping block is a truncated cone structure. The rubber ring pad at the bottom end of the first push block can improve the limiting effect of the heat sink body, and the truncated cone structure at the bottom end of the stamping block can improve the stamping effect of the heat sink body.

[0010] Furthermore, four groups of optical axes are fixedly connected between the mounting frame and the base, and the moving block is slidably sleeved on the surface of the optical axis. The movement of the moving block can be limited by the optical axis to ensure that the upper die is aligned with the lower die, thereby improving the accuracy of stamping.

[0011] Furthermore, a waste box is placed on one side of the base close to the punching groove, and waste generated by the punching holes can be collected through the waste box.

[0012] Furthermore, second push blocks are symmetrically arranged on both sides of the lower mold surface, and a sliding rod is symmetrically fixedly connected to one side of the second push block surface close to the lower mold, and the sliding rod is slidably connected to the inside of the lower mold. A second spring is sleeved on the surface of the sliding rod, and the two ends of the second spring are respectively in contact with the second push block and the lower mold, so that the second push block can push the groove on the heat sink body to separate from the protrusion on the lower mold.

[0013] Furthermore, the loading assembly includes a connecting rod, a moving rod, a feed box, a stop block and a third spring. The feed box is fixedly connected to one side of the base surface, and the moving rod is slidably connected inside the feed box. Connecting rods are symmetrically hinged on both sides of the moving rod, and one end of the connecting rod away from the moving rod is hinged to the moving block. A stop block with a trapezoidal structure is symmetrically slidably connected on one side of the moving rod close to the heat sink body. A third spring is fixedly connected between the stop block and the feed box. Through the connecting rod, the moving rod and the stop block, the movement of the moving block during the stamping process can be utilized to realize automatic loading and unloading of the heat sink body.

[0014] Furthermore, a plurality of groups of stoppers in a triangular structure are fixedly connected to one side of the base surface close to the heat sink body, and the heat sink body on the base surface can be limited by the stoppers.

[0015] Furthermore, a feeding trough is provided on one side of the base away from the feeding box, and a collecting box is placed on the side of the base close to the feeding trough, through which the heat sink body after stamping is collected.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effect of the utility model lies in: by setting up a stamping assembly, the stamping block can punch and groove the mounting holes on the surface of the heat sink body, and the protrusion on the lower mold can stamp and form the grooves on the surface of the heat sink body, and the elastic force of the first spring and the second spring is used to realize automatic demoulding of the heat sink body, which is simple and convenient to operate and improves the processing efficiency of the heat sink body. At the same time, a loading assembly is set, and the movement of the moving block during the stamping process can be utilized through the loading assembly to realize automatic loading and unloading of the heat sink body, further improving the processing efficiency of the heat sink body and avoiding the safety hazards caused by manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 What is shown is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 Shown is a schematic diagram of the structure of the moving block and the hydraulic cylinder in the utility model;

[0020] Figure 3 Shown is a schematic diagram of the structure of the optical axis and the upper die in the utility model;

[0021] Figure 4 Shown is a cross-sectional view of the base in the utility model;

[0022] Figure 5 Shown is a schematic diagram of the structure of the slide rod and the second push block in the utility model;

[0023] Figure 6 Shown is a cross-sectional view of the feed box in the utility model;

[0024] Figure 7 The utility model is shown Figure 4 Enlarged view of point A in the middle

[0025] Figure 8 The utility model is shown Figure 6 Enlarged view of point B in the middle.

[0026] Explanation of the accompanying drawings: 1-base, 2-mounting frame, 3-stamping assembly, 31-optical axis, 32-upper die, 33-lower die, 34-sleeve, 35-first push block, 36-stamping groove, 37-waste box, 38-collection box, 39-first spring, 310-stamping block, 311-second push block, 312-second spring, 313-slide rod, 4-feeding assembly, 41-connecting rod, 42-moving rod, 43-feeding box, 44-stop block, 45-resist block, 46-third spring, 5-moving block, 6-heat sink body, 7-hydraulic cylinder. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Embodiment 1:

[0029] See also Figure 1-8 The utility model provides an embodiment: a PCB board heat sink positioning groove stamping forming device, comprising a base 1 and a mounting frame 2 fixedly connected above the base 1 and a heat sink body 6 arranged above the base 1, a hydraulic cylinder 7 is installed on the surface of the mounting frame 2, and a moving block 5 is fixedly connected to the output end of the hydraulic cylinder 7, a stamping component 3 is arranged above the base 1, and a feeding component 4 is arranged on one side of the surface of the base 1;

[0030] The stamping assembly 3 includes an upper die 32, a lower die 33, a sleeve 34, a first push block 35, a stamping groove 36, a first spring 39 and a stamping block 310. The lower die 33 is installed on the upper surface of the base 1, and the upper die 32 is installed on the bottom surface of the moving block 5. The surface of the upper die 32 close to the heat sink body 6 is fixedly connected with four groups of sleeves 34 arranged at equal distances. The sleeve 34 is fixedly connected with a stamping block 310 inside. The outer wall surface of the stamping block 310 is slidably sleeved with a first push block 35 in an I-shaped structure, and the first push block 35 is slidably connected to the inside of the sleeve 34. The surface of the stamping block 310 is sleeved with a first spring 39, and the two ends of the first spring 39 are respectively in conflict with the sleeve 34 and the first push block 35. The lower die 33 and the stamping groove 36 are both provided with a stamping groove on the side close to the stamping block 310. 36. When stamping the heat sink, the hydraulic cylinder 7 is started to push the moving block 5 downward, and then the moving block 5 drives the multiple groups of sleeves 34 to move downward through the upper die 32, and the multiple groups of first push blocks 35 are pressed against the surface of the heat sink body 6 to limit the heat sink body 6. As the moving block 5 moves downward, the multiple groups of first springs 39 will squeeze and shrink, so that the upper die 32 pushes the multiple groups of stamping blocks 310 and cooperates with the stamping grooves 36 to stamp the heat sink body 6, completing the stamping and grooving of the mounting holes of the heat sink body 6. At the same time, multiple groups of protrusions are fixed on the surface of the lower die 33, and the protrusions on the surface of the lower die 33 will stamp the grooves of the heat sink body 6. After the stamping is completed, the hydraulic cylinder 7 drives the moving block 5 to move upward, and the first push block 35 will be pushed by the elastic force of the first spring 39 to separate the heat sink body 6 from the surface of the stamping block 310, thereby realizing the rapid separation and demoulding of the heat sink body 6.

[0031] Embodiment 2:

[0032] See also Figure 1-8In this embodiment, the bottom ends of the first push blocks 35 are fixedly connected with rubber ring pads, the bottom ends of the punching blocks 310 are truncated cone-shaped structures, four groups of optical axes 31 are fixedly connected between the mounting frame 2 and the base 1, and the moving block 5 is slidably sleeved on the surface of the optical axis 31, a waste box 37 is placed on the side of the base 1 close to the punching groove 36, and second push blocks 311 are symmetrically arranged on both sides of the surface of the lower mold 33, and a sliding rod 313 is symmetrically fixedly connected to the surface of the second push block 311 close to the side of the lower mold 33, and the sliding rod 313 is slidably connected to the inside of the lower mold 33, and the surface of the sliding rod 313 is sleeved with a second spring 312, and the two ends of the second spring 312 are respectively The rubber ring pad at the bottom of the first push block 35 can improve the limiting effect of the heat sink body 6, and the truncated cone structure at the bottom of the punching block 310 can improve the punching effect of the heat sink body 6. The waste after the punching and grooving will fall through the punching groove 36 and fall into the waste box 37 for unified collection. During the punching process of the heat sink body 6, the heat sink body 6 will be pushed by the punching force to push the second push block 311 downward and squeeze the second spring 312 to contract. After the punching is completed, the second push block 311 will be pushed by the elastic force of the second spring 312 to separate the groove on the heat sink body 6 from the convex block on the lower mold 33, thereby improving the convenience of demoulding the heat sink body 6.

[0033] And by setting a loading component 4, the loading component 4 includes a connecting rod 41, a moving rod 42, a feeding box 43, a stopper 45 and a third spring 46, one side of the surface of the base 1 is fixedly connected to the feeding box 43, the moving rod 42 is slidably connected inside the feeding box 43, the two sides of the moving rod 42 are symmetrically hinged with connecting rods 41, and the end of the connecting rod 41 away from the moving rod 42 is hinged to the moving block 5, the side of the moving rod 42 close to the heat sink body 6 is symmetrically slidably connected with a stopper 45 with a trapezoidal structure, the stopper 45 and the feeding box 43 are fixedly connected with a third spring 46, a side of the surface of the base 1 close to the heat sink body 6 is fixedly connected with a plurality of groups of stoppers 44 with a triangular structure, a side of the base 1 away from the feeding box 43 is provided with a discharge trough, a side of the base 1 close to the discharge trough is placed with a collecting box 38, and the inside of the feeding box 43 is placed in sequence. There are several heat sink bodies 6. During the stamping process, when the hydraulic cylinder 7 drives the moving block 5 to move downward, the moving block 5 will pull the moving rod 42 through the two groups of connecting rods 41 to slide inside the feed box 43. The corners of the heat sink body 6 will squeeze the inclined surface of the stop block 45 so that the stop block 45 is stored inside the feed box 43. When the moving block 5 moves to the lowest end, the stop block 45 is separated from the heat sink body 6. Then, when the moving block 5 moves upward, the connecting rod 41 will drive the stop block 45 to move through the moving rod 42, and the stop block 45 will push the heat sink body 6 located at the lowest end of the feed box 43 to the surface of the base 1, so as to realize the loading of the heat sink body 6. The multiple groups of triangular-structured blocks 44 on the surface of the base 1 can tightly limit the heat sink body 6. During the loading process of the heat sink body 6 on one side, the heat sink body 6 will push the heat sink body 6 located on the surface of the lower mold 33 to move to one side of the discharge chute, and fall into the collection box 38 for collection.

[0034] Through the above steps, the punching block 310 can punch and groove the mounting holes on the surface of the heat sink body 6, and the protrusions on the lower mold 33 can punch and form the grooves on the surface of the heat sink body 6. The elastic force of the first spring 39 and the second spring 312 can be used to automatically demold the heat sink body 6. The operation is simple and convenient, which improves the processing efficiency of the heat sink body 6. The loading component 4 can utilize the movement of the moving block 5 during the stamping process to realize automatic loading and unloading of the heat sink body 6, further improving the processing efficiency of the heat sink body 6, while avoiding the safety hazards caused by manual operation.

[0035] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A PCB heat sink positioning groove punching and forming device, comprising a base (1), a mounting frame (2) fixedly connected to the base (1), and a heat sink body (6) arranged above the base (1), a hydraulic cylinder (7) being installed on the surface of the mounting frame (2), and a moving block (5) being fixedly connected to the output end of the hydraulic cylinder (7), characterized in that: A stamping assembly (3) is arranged above the base (1), and a loading assembly (4) is arranged on one side of the surface of the base (1); The punching assembly (3) comprises an upper die (32), a lower die (33), a sleeve (34), a first push block (35), a punching groove (36), a first spring (39) and a punching block (310); the lower die (33) is mounted on the upper surface of the base (1); the upper die (32) is mounted on the bottom surface of the moving block (5); four groups of sleeves (34) arranged at equal distances are fixedly connected to the surface of the upper die (32) on one side close to the heat sink body (6); the punching block (310) is fixedly connected to the inside of the sleeve (34). 10), a first push block (35) in an I-shaped structure is slidably sleeved on the outer wall surface of the punching block (310), and the first push block (35) is slidably connected to the inside of the sleeve (34), a first spring (39) is sleeved on the surface of the punching block (310), and the two ends of the first spring (39) are respectively in contact with the sleeve (34) and the first push block (35), and a punching groove (36) is provided on the side of the lower mold (33) and the punching groove (36) close to the punching block (310).

2. The device for punching and forming the positioning groove of the PCB heat sink according to claim 1, characterized in that: The bottom ends of the first push blocks (35) are fixedly connected to rubber ring pads, and the bottom ends of the punching blocks (310) are in a truncated cone-shaped structure.

3. The device for punching and forming the positioning groove of the PCB heat sink according to claim 1, characterized in that: Four groups of optical axes (31) are fixedly connected between the mounting frame (2) and the base (1), and the moving block (5) is slidably sleeved on the surface of the optical axis (31).

4. The device for punching and forming the positioning groove of the PCB heat sink according to claim 1, characterized in that: A waste box (37) is placed on one side of the base (1) close to the punching groove (36).

5. The device for punching and forming the positioning groove of the PCB heat sink according to claim 1, characterized in that: Second push blocks (311) are symmetrically arranged on both sides of the surface of the lower mold (33); a sliding rod (313) is symmetrically fixedly connected to one side of the surface of the second push block (311) close to the lower mold (33), and the sliding rod (313) is slidably connected to the inside of the lower mold (33); a second spring (312) is sleeved on the surface of the sliding rod (313), and two ends of the second spring (312) are respectively in contact with the second push block (311) and the lower mold (33).

6. The device for punching and forming the positioning groove of the PCB heat sink according to claim 1, characterized in that: The loading assembly (4) comprises a connecting rod (41), a moving rod (42), a feed box (43), a stop block (45) and a third spring (46); one side of the surface of the base (1) is fixedly connected to the feed box (43); the inside of the feed box (43) is slidably connected to the moving rod (42); the two sides of the moving rod (42) are symmetrically hinged with connecting rods (41), and one end of the connecting rod (41) away from the moving rod (42) is hinged to the moving block (5); the inside of the moving rod (42) is symmetrically slidably connected to a stop block (45) with a trapezoidal structure on one side close to the heat sink body (6); and a third spring (46) is fixedly connected between the stop block (45) and the feed box (43).

7. The device for punching and forming the positioning groove of the PCB heat sink according to claim 6, characterized in that: A plurality of groups of stoppers (44) in a triangular structure are fixedly connected to one side of the surface of the base (1) close to the heat sink body (6).

8. The device for punching and forming the positioning groove of the PCB heat sink according to claim 6, characterized in that: A material discharge trough is provided on a side of the base (1) away from the material feed box (43), and a collection box (38) is placed on a side of the base (1) close to the material discharge trough.

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