A fin riveting press

Abstract

The utility model discloses a fin riveting press, including frame, index disc, rivet into hole preassembly component, riveting mechanism, unloading mechanism, work piece conveying component, the frame verticality is provided, and its top is equipped with the workbench surface of horizontal setting, workbench surface middle part is equipped with servo motor, index device, the index disc horizontal setting is equally arranged with a plurality of positioning clamps on it, positioning clamp middle part is equipped with the positioning cavity, and the positioning cavity bottom is equipped with a plurality of let position hole, functional component placing hole, manual feeding station, rivet into hole preassembly component, riveting mechanism, unloading mechanism are sequentially equipped with above the index disc, the rivet into hole preassembly component includes blowing material support, nozzle mounting seat, air cylinder, clamping nozzle seat, material guide pipe, lifting cylinder, lifting sliding block, nozzle outer tube, the utility model discloses a fin riveting press, and its structure design is simple and reasonable, and stable and reliable operation, and riveting is efficient, and riveting precision is high, and it is convenient for fin subsequent quality inspection.

Description

Technical Field

[0001] This utility model relates to the field of riveting machine technology, and in particular to a heat sink riveting machine. Background Technology

[0002] In the field of heat dissipation for electronic components, heat sinks are key components for achieving rapid heat conduction. During their production, the riveting process is an important step in securing heat sink fins, heat pipes, or other functional components to the heat sink body using rivets.

[0003] In existing technologies, the riveting of heat sinks is mostly done manually or with semi-automated equipment. Manual operation suffers from low production efficiency and high labor intensity. Furthermore, the accuracy of manual riveting is greatly affected by the operator's skill, easily leading to issues such as incomplete riveting or over-riveting. This results in a high scrap rate for heat sink products, making it difficult to meet the quality and efficiency requirements of large-scale production.

[0004] While some semi-automated riveting equipment reduces manual intervention to a certain extent, it still has many shortcomings: the demolding of the riveted heat sink is inefficient and inconvenient; and the riveted heat sink is inconvenient for subsequent quality inspection.

[0005] In summary, existing heat sink riveting technology has significant shortcomings in terms of efficiency, accuracy, and quality inspection. There is an urgent need for a device that can achieve efficient riveting, facilitate quality inspection, and achieve high riveting accuracy in order to solve the aforementioned industry pain points. Utility Model Content

[0006] The purpose of this utility model is to provide a heat sink riveting machine with a simple and reasonable structural design, stable and reliable operation, high riveting efficiency and high riveting precision, and convenient subsequent quality inspection of heat sinks.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0008] A heat sink riveting machine includes a frame, an indexing turntable, a rivet insertion hole pre-assembly assembly, a riveting mechanism, an unloading mechanism, and a workpiece conveying assembly;

[0009] The frame is vertically arranged, with a horizontally arranged worktable on top. A servo motor and an indexer are located in the middle of the worktable. The output shaft of the servo motor is directly connected to the input shaft of the indexer through a coupling. The top of the output shaft of the indexer is connected to the center of the indexing turntable, which drives the indexing turntable to rotate.

[0010] The indexing turntable is evenly equipped with several positioning fixtures; each positioning fixture has a positioning cavity in the middle, where the heat sink is manually placed for precise positioning, restricting the horizontal freedom of the heat sink; the bottom of the positioning cavity has several clearance holes and functional component placement holes, so that when the rivet is pressed down, the bottom of the rivet is inserted into the clearance hole. The rivet holes on the heat sink correspond one-to-one with the clearance holes.

[0011] Above the indexing turntable are arranged a manual feeding station, a rivet insertion hole pre-assembly assembly, a riveting mechanism, and an unloading mechanism in sequence; the workpiece conveying assembly is located on one side of the unloading mechanism.

[0012] The rivet insertion pre-assembly assembly includes a blowing bracket, a nozzle mounting base, a cylinder, a clamping seat, a guide tube, a lifting cylinder, a lifting slider, and an outer nozzle tube. The blowing bracket is vertically mounted on the worktable, with a vertically mounted lifting cylinder at its top. The output shaft of the lifting cylinder is connected to the lifting slider. A nozzle mounting base is fixed on the lifting slider; the cylinder is vertically mounted on the nozzle mounting base. The outer nozzle tube is a cylindrical tube with a cylindrical cavity in the middle, extending through its upper and lower ends. The bottom end of the lifting cylinder's output shaft is inserted into the cylindrical cavity of the outer nozzle tube; the bottom end of the outer nozzle tube is connected to the clamping seat, and the cylindrical cavity communicates with the guide cavity of the clamping seat. The upper end of the guide cavity of the clamping seat is connected to the guide tube, and the lower end of the guide cavity is vertically downward and open. The rivet is conveyed to the clamping seat through the guide tube, guided vertically downward through the guide cavity, and pushed vertically downward by the output shaft of the cylinder, allowing the rivet to enter the corresponding rivet hole below.

[0013] The riveting mechanism includes an electric cylinder mounting base, a hole-type electric cylinder, a lifting mounting base, a synchronous pressure head, a guide rod, and a linear bearing. The hole-type electric cylinder uses a hole-type servo motor as a direct drive force source. When the motor is running, the lead screw directly completes the extension and retraction action within the cavity of the servo motor, converting the rotational motion of the motor into linear motion.

[0014] The electric cylinder mounting base is vertically mounted on the workbench. The hole-type electric cylinder is vertically fixed to the top of the electric cylinder mounting base, and its output shaft is connected to a horizontally mounted lifting mounting base. The bottom of the lifting mounting base is equipped with a horizontally mounted synchronous pressure head, and the bottom of the synchronous pressure head is equipped with several punches; the punches correspond one-to-one with the rivet holes.

[0015] To facilitate smooth and stable lifting (pressing) of the lifting mounting base, linear bearings are provided at the four corners of the lifting mounting base, and the linear bearings are sleeved on the vertically set guide rods.

[0016] The unloading mechanism includes a cylinder base, a lifting cylinder, a rotary cylinder, and a clamping gripper. The cylinder base is vertically fixed on the worktable, the lifting cylinder is vertically fixed on the cylinder base, and its output shaft is connected to the rotary cylinder mounting base. The rotary cylinder is fixed on the rotary cylinder mounting base, and its output shaft is connected to a tilting plate. A clamping gripper is fixed at the end of the tilting plate.

[0017] Briefly describe its principle:

[0018] First, place the functional component into the functional component placement hole, the functional component has a mounting through hole in the middle; then place the heat sink into the positioning cavity, aligning the rivet holes, clearance holes and mounting through holes on the heat sink.

[0019] The rivet insertion pre-assembly component first inserts the rivet (rivet-type fastener) into the rivet hole on the heat sink;

[0020] The punch of the riveting mechanism presses the rivet, so that the rivet connects and fastens the functional component to the heat sink;

[0021] After the gripper holds the workpiece (heat sink), the lifting cylinder raises the gripper to the vertical height of the workpiece. After it is released from the positioning fixture, the rotating cylinder flips the workpiece 180 degrees and places it on the workpiece conveying assembly. The bottom surface that needs to be inspected is flipped up so that it faces upwards, which is convenient for subsequent quality inspection.

[0022] The beneficial effects of this utility model are:

[0023] Its structural design is simple and reasonable, and its operation is stable and reliable; the riveting is efficient and precise; and it facilitates subsequent quality inspection of the heat sink. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a heat sink riveting machine according to the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of a heat sink riveting machine according to the present invention (the operation panel and shielding cover are omitted).

[0026] Figure 3 This is a schematic diagram of the structure of a heat sink riveting machine according to the present invention (in...). Figure 2 (omitting one heat sink from the base);

[0027] Figure 4 This is a schematic diagram of the positioning fixture of this utility model;

[0028] Figure 5 This is a structural schematic diagram of the rivet insertion hole pre-assembly assembly of this utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the cylinder, clamp seat, and nozzle outer tube of this utility model;

[0030] Figure 7 for Figure 6 A cross-sectional view along the CC direction;

[0031] Figure 8 This is a schematic diagram of the riveting mechanism of this utility model. Detailed Implementation

[0032] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] like Figures 1-8 As shown, a heat sink riveting machine includes a frame 1, an indexing turntable 2, a rivet insertion hole pre-assembly assembly 3, a riveting mechanism 4, an unloading mechanism 5, and a workpiece conveying assembly 6.

[0034] The frame 1 is vertically arranged, and a horizontally arranged worktable 10 is provided on its top. A servo motor 11 and an indexer 12 are provided in the middle of the worktable 10. The output shaft of the servo motor 11 is directly connected to the input shaft of the indexer 12 through a coupling. The top of the output shaft of the indexer 12 is connected to the center of the indexing turntable 2, which drives the indexing turntable 2 to rotate.

[0035] The indexing turntable 2 is evenly distributed with several positioning fixtures 7; each positioning fixture 7 has a positioning cavity 70 in the middle, where the heat sink 8 is manually placed for precise positioning, restricting the horizontal freedom of the heat sink 8; the bottom of the positioning cavity 70 has several clearance holes 71 and functional component placement holes 72, so that when the rivet is pressed down, the bottom of the rivet is inserted into the clearance holes 71. The rivet holes on the heat sink 8 correspond one-to-one with the clearance holes 71.

[0036] Above the indexing turntable 2 are arranged a manual feeding station, a rivet insertion hole pre-assembly assembly 3, a riveting mechanism 4, and an unloading mechanism 5 in sequence; the workpiece conveying assembly 6 is located on one side of the unloading mechanism 5.

[0037] The rivet insertion pre-assembly assembly 3 includes a blowing bracket 31, a nozzle mounting base 32, a cylinder 33, a clamping seat 35, a guide tube, a lifting cylinder 36, a lifting slider 37, and a nozzle outer tube 38. The blowing bracket 31 is vertically mounted on the worktable 10, with a vertically mounted lifting cylinder 36 at its top. The output shaft of the lifting cylinder 36 is connected to the lifting slider 37. The nozzle mounting base 32 is fixed on the lifting slider 37. The cylinder 33 is vertically mounted on the nozzle mounting base 32. The nozzle outer tube 38 is a cylindrical tube with a cylindrical cavity in the middle, the cylindrical cavity penetrating its upper and lower end faces. The bottom end of the output shaft of the lifting cylinder 36 is inserted into the cylindrical cavity of the nozzle outer tube 38; the bottom end of the nozzle outer tube 38 is connected to the clamping seat 35, and the cylindrical cavity communicates with the guide cavity 350 of the clamping seat 35. The upper end of the guide chamber of the clamp seat 35 is connected to a guide pipe, and the lower end of the guide chamber 350 is vertically downward and open. The rivet is conveyed to the clamp seat 35 through the guide pipe, guided vertically downward through the guide chamber 350, and pushed vertically downward by the output shaft of the cylinder 33, so that the rivet enters the corresponding rivet hole below. This is prior art and will not be described in detail here.

[0038] The riveting mechanism 4 includes an electric cylinder mounting base 41, a hole-type electric cylinder 42, a lifting mounting base 43, a synchronous pressing head 44, a guide rod 45, and a linear bearing 46. The hole-type electric cylinder 42 uses a hole-type servo motor as a direct drive force source. When the motor is running, the lead screw directly completes the extension and retraction action within the cavity of the servo motor, converting the rotational motion of the motor into linear motion.

[0039] The electric cylinder mounting base 41 is vertically mounted on the workbench 10, and the hole-type electric cylinder 42 is vertically fixed on the top of the electric cylinder mounting base 41. Its output shaft is connected to the horizontally mounted lifting mounting base 43. The bottom of the lifting mounting base 43 is provided with a horizontally mounted synchronous pressure head 44, and the bottom of the synchronous pressure head 44 is provided with several punches 440; the punches 440 correspond one-to-one with the rivet holes.

[0040] To facilitate smooth and stable lifting (pressing) of the lifting mounting base 43, guide rods 45 are provided at the four corners of the lifting mounting base 43, and linear bearings 46 are fixed on the electric cylinder mounting base 41 and sleeved on the guide rods 45.

[0041] The unloading mechanism 5 includes a cylinder base 51, a lifting cylinder 52, a rotary cylinder 53, and a clamping gripper 54. The cylinder base 51 is vertically fixed on the worktable 10, the lifting cylinder 52 is vertically fixed on the cylinder base 51, and its output shaft is connected to the rotary cylinder 53 mounting base. The rotary cylinder 53 is fixed on the rotary cylinder 53 mounting base, and its output shaft is connected to the tilting plate 55. The end of the tilting plate 55 is fixed with a clamping gripper 54.

[0042] Preferably, a lifting assembly is provided below the indexing turntable 2, and the lifting assembly corresponds vertically to the riveting mechanism 5.

[0043] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.

Claims

1. A fin riveter characterized by: It includes a frame, indexing turntable, rivet insertion hole pre-assembly assembly, riveting mechanism, unloading mechanism, and workpiece conveying assembly; The frame is vertically arranged, with a horizontally arranged worktable on top; a servo motor and an indexer are located in the middle of the worktable; the servo motor and indexer drive the indexing turntable to rotate. The indexing turntable is horizontally arranged and has several positioning fixtures evenly distributed on it; the positioning fixtures have a positioning cavity in the middle; the bottom of the positioning cavity has several clearance holes and functional component placement holes; Above the indexing turntable are arranged a manual feeding station, a rivet insertion hole pre-assembly assembly, a riveting mechanism, and an unloading mechanism in sequence; the workpiece conveying assembly is located on one side of the unloading mechanism; The rivet insertion hole pre-assembly assembly includes a blowing bracket, a nozzle mounting seat, a cylinder, a clamp seat, a guide tube, a lifting cylinder, a lifting slider, and a nozzle outer tube.

2. The fin riveter of claim 1, wherein: The blowing support is vertically mounted on the workbench, and a vertically mounted lifting cylinder is provided on its top. The output shaft of the lifting cylinder is connected to the lifting slider. A nozzle mounting seat is fixed on the lifting slider. The cylinder is vertically mounted on the nozzle mounting seat. The nozzle outer tube is a cylindrical tube with a cylindrical cavity in the middle, and the cylindrical cavity passes through its upper and lower end faces. The bottom end of the output shaft of the lifting cylinder is inserted into the cylindrical cavity of the nozzle outer tube; the bottom end of the nozzle outer tube is connected to the clamp seat, and the cylindrical cavity is connected to the guide cavity of the clamp seat. The upper end of the guide chamber of the clamp seat is connected to the guide tube, and the lower end of the guide chamber is vertically downward and open.

3. The fin riveter of claim 2, wherein: The riveting mechanism includes an electric cylinder mounting base, a hole-type electric cylinder, a lifting mounting base, a synchronous pressure head, a guide rod, and a linear bearing. The electric cylinder mounting base is vertically set on the workbench, the hole-type electric cylinder is vertically fixed on the top of the electric cylinder mounting base, and its output shaft is connected to the horizontally set lifting mounting base. The bottom of the lifting mounting base is equipped with a horizontally positioned synchronous pressure head, and the bottom of the synchronous pressure head is equipped with several punches.

4. The fin riveter of claim 3, wherein: The lifting mounting base has vertically arranged guide rods at its four corners, and linear bearings are fixed on the electric cylinder mounting base and sleeved on the guide rods.

5. The fin riveter of any one of claims 1-4, wherein: The unloading mechanism includes a cylinder seat, a lifting cylinder, a rotary cylinder, and a clamping gripper; the cylinder seat is vertically fixed on the worktable, the lifting cylinder is vertically fixed on the cylinder seat, and its output shaft is connected to the rotary cylinder mounting base; the rotary cylinder is fixed on the rotary cylinder mounting base, and its output shaft is connected to the tilting plate; the end of the tilting plate is fixed with a clamping gripper.

6. The fin riveter of claim 5 wherein: Below the indexing turntable is a lifting assembly, which corresponds vertically to the riveting mechanism.

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