Large-aperture drilling tool device

Abstract

The utility model belongs to the technical field of mechanical equipment, and discloses a large-aperture drilling cutter device which comprises a cutter head, at least one cutter head, at least one blade and an elastic buffer ring, a boss is arranged on the cutter head, and at least one mounting hole is formed in the boss; the cutter head is mounted on the cutter head and extends along the direction of a central shaft; the blade is installed on the tool bit, a boss is arranged on the blade, a groove corresponding to the boss is formed in the tool bit, and the boss is clamped in the groove; the blade is a circular blade, the diameter of the blade is 8-12mm, and the diameter of the joint of the blade and the tool bit is smaller than that of the blade; the elastic buffer ring is mounted between the tool bit and the blade, and the elastic buffer ring is suitable for keeping the blade stable in the drilling process. In the drilling process, only the center hole with the small diameter needs to be pre-machined, the requirement for drilling equipment is low, generated chippings can be recycled, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical equipment and relates to a drilling tool, in particular to a large-diameter drilling tool device. Background Art

[0002] At present, drilling tools are tools used to make large diameter holes on various materials, and are widely used in industries such as oil, gas, mining, construction, shipbuilding, aerospace, and heavy machinery manufacturing. After searching, it was found that the Chinese patent with publication number CN219093745U disclosed a drilling tool. In this patent, the drill bit structure is optimized, the chip groove, end edge, transverse edge, and drill shank are designed, and the drilling tool is installed on the corresponding machine tool or drilling equipment. Positioning is performed according to the required drilling position and depth, and the machine tool or drilling equipment is started to start the tool to start rotating. Through the action of the end edge and transverse edge, cutting begins. As the drilling proceeds, the chip groove and chip groove effectively remove the chips from the drill hole, keeping the drilling clean and efficient. As the drilling continues to go deeper, the finishing edge band and the back tool face help to improve the accuracy and surface smoothness of the drilling. When the predetermined drilling depth is reached, the drilling is stopped and the tool is removed from the hole. However, during the drilling process, this patent requires using an ordinary twist drill to pre-drill a center hole with a larger diameter. The pre-drilling cutting amount is large, the requirements for the drilling machine equipment are high and the time is long, which affects production efficiency. Summary of the invention

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a large-diameter drilling tool device, which only needs to pre-process a center hole with a smaller diameter, has low requirements on drilling equipment and the debris generated during the drilling process can be recycled and reused, thereby reducing production costs and improving production efficiency.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A large-diameter drilling tool device, comprising:

[0006] A cutter disc, wherein the cutter disc is provided with a boss, and the boss is provided with at least one mounting hole;

[0007] At least one cutter head, the cutter head is mounted on the cutter disc, and the cutter head extends along the central axis direction; at least one blade, the blade is mounted on the cutter head, the blade is provided with a boss, the cutter head is provided with a groove corresponding to the boss, and the boss is clamped in the groove;

[0008] The blade is a circular blade, the diameter of the blade is 8-12 mm, and the connection between the blade and the cutter head is smaller than the diameter of the blade;

[0009] An elastic buffer ring is installed between the cutter head and the blade, and the elastic buffer ring is suitable for keeping the blade stable during drilling.

[0010] Furthermore, in order to extend the service life of the tool, the tool disc is made of Cr12MoV die forged steel, and the hardness of the tool disc after heat treatment is 50-60HRC.

[0011] Furthermore, in order to reduce friction with the workpiece, the cutter head is hollowed out.

[0012] Furthermore, in order to improve production efficiency, the cutter head and the cutter disc are forged as one piece.

[0013] Furthermore, the cutter head is a trapezoidal structure.

[0014] Furthermore, to prevent the blade from falling off, the large-diameter drilling tool further comprises a movable pressing block, which is suitable for pressing the blade.

[0015] Furthermore, in order to better remove chips, the large-diameter drilling tool also includes a chip groove, which is arranged on the outer surface of the tool head, and the chip groove is spiral-shaped, and is used to remove chips generated during the drilling process.

[0016] Furthermore, in order to prevent the tool from overheating during the drilling process, the large-diameter drilling tool also includes a coolant channel, which is arranged on the cutter head and is suitable for providing coolant to the cutter head and the blade.

[0017] Beneficial Effects

[0018] 1. In the utility model, the cutter disc is made of Cr12MoV die forged steel. After heat treatment, the hardness reaches 50-60HRC, which ensures the durability of the cutter disc in the high-intensity drilling process. The cutter head is forged in one piece, which helps to withstand the huge cutting force generated when drilling large diameter holes. The cutter head and the blade can be accurately aligned during installation through the groove boss structure, which improves the drilling accuracy and efficiency. The elastic buffer ring can effectively absorb the vibration and impact force generated during the drilling process, protect the blade from excessive mechanical stress, and extend the service life of the blade.

[0019] 2. In the present invention, a one-time processing cutter disc with the required aperture can be designed according to the aperture required by the product, and the processing can be completed in one time, thereby reducing the amount of subsequent machining and improving production efficiency.

[0020] 3. In the utility model, less waste aluminum chips are generated during the production process. The waste materials are disc-shaped aluminum blocks, which are easy to recycle and can be directly returned to the furnace for reuse, thus reducing cost consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 . Front view of the large-diameter drilling tool device,

[0022] Figure 2 .Right view of the large-diameter drilling tool device,

[0023] Figure 3 .Rear view of the large-diameter drilling tool device,

[0024] The names of the components are: 1. cutter disc, 11. boss, 111. mounting hole, 2. cutter head, 3. blade. DETAILED DESCRIPTION

[0025] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0026] like Figure 1-3 As shown, a large-diameter drilling tool device comprises:

[0027] The cutter disc 1 is provided with a boss 11, and the boss 11 is provided with six mounting holes 111;

[0028] Four cutter heads 2, the cutter heads 2 are mounted on the cutter disc 1, and the cutter heads 2 extend along the central axis direction;

[0029] Four blades 3, the blades 3 are mounted on the cutter head 2, the blades 2 are provided with bosses, the cutter head is provided with grooves corresponding to the bosses, the bosses are clamped in the grooves, and the arrangement of the grooves and bosses ensures that the blades 2 can be accurately aligned during installation, thereby improving the accuracy and efficiency of drilling;

[0030] The blade 3 is a circular blade 3, the diameter of the blade 3 is 8-12 mm, and the connection between the blade 3 and the cutter head 2 is smaller than the diameter of the blade 3. In this embodiment, the number of cutter heads can be appropriately increased or decreased according to the actual required processing hole diameter;

[0031] An elastic buffer ring is installed between the cutter head 2 and the blade 3. The elastic buffer ring is suitable for keeping the blade stable during the drilling process.

[0032] In this example, the elastic buffer ring is made of a highly elastic material, such as silicone or special synthetic rubber, and can effectively absorb the vibration and impact force generated during the drilling process, protect the blade from excessive mechanical stress, and extend the service life of the blade.

[0033] Specifically, the cutter disc 1 is made of Cr12MoV die forged steel, and the hardness of the cutter disc 1 after heat treatment is 50-60HRC.

[0034] Specifically, Figure 1 As shown, the cutter head 2 is hollowed out, and the hollowed-out cutter head 2 can reduce the friction between the cutter head 2 and the workpiece.

[0035] Specifically, the cutter head 2 and the cutter disc 1 are forged as one piece. In this embodiment, a tool that meets the requirements is processed at one time according to product requirements. This method can reduce the amount of subsequent machining and improve production efficiency.

[0036] Specifically, the cutter head 2 is a trapezoidal structure.

[0037] Specifically, the large-diameter drilling tool further includes a movable pressing block, which is suitable for pressing the blade 3. In this embodiment, the fixing of the cutter head 2 and the blade 3 can also be strengthened by a screw 4.

[0038] Specifically, the large-diameter drilling tool further includes a chip groove, which is arranged on the outer surface of the tool head 2 and is spiral-shaped, and is used to discharge chips generated during the drilling process.

[0039] Specifically, the large-diameter drilling tool further includes a coolant channel, which is disposed on the cutter head 1 , and is suitable for providing coolant to the cutter head 2 and the blade 3 .

[0040] In the utility model, the cutter head 1 is made of Cr12MoV die forged steel. After heat treatment, the hardness reaches 50-60HRC, which ensures the durability of the cutter head 1 in the high-intensity drilling process. The cutter head 2 is forged as a whole, which helps to withstand the huge cutting force generated when drilling large diameter holes. The cutter head 2 and the blade 3 can be accurately aligned during installation through the groove boss structure, which improves the accuracy and efficiency of drilling. The elastic buffer ring can effectively absorb the vibration and impact force generated during the drilling process, protect the blade from excessive mechanical stress, and extend the service life of the blade. When processing a large diameter hole, first use a small drill bit to drill a 8-12mm circular groove on the workpiece, and then use a large-aperture drilling tool to expand the workpiece. The cutting amount of processing a 8-12mm circular groove is small, and it can be completed using a small drilling machine, which effectively reduces the production cost. The cutter head 2 and the blade 3 are installed on the cutter head 1 as needed, and the position and direction of the tool are adjusted according to the drilling diameter and depth requirements. The drilling is started to rotate the tool and expand the hole.

[0041] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A large-diameter drilling tool device, characterized in that: include: A cutter disc (1), wherein the cutter disc (1) is provided with a boss (11), and the boss (11) is provided with at least one mounting hole (111); At least one cutter head (2), the cutter head (2) being mounted on the cutter disc (1), the cutter head (2) extending along the central axis direction; at least one blade (3), the blade (3) being mounted on the blade head (2), the blade (3) being provided with a boss, the blade head (2) being provided with a groove corresponding to the boss, the boss being clamped in the groove; The blade (3) is a circular blade, the diameter of the blade (3) is 8-12 mm, and the connection between the blade (3) and the cutter head (2) is smaller than the diameter of the blade (3); An elastic buffer ring is installed between the cutter head (2) and the blade (3), and the elastic buffer ring is suitable for keeping the blade stable during the drilling process.

2. The large-diameter drilling tool device according to claim 1, characterized in that: The cutter disc (1) is made of Cr12MoV die forged steel, and after heat treatment, the hardness of the cutter disc (1) is 50-60HRC.

3. The large-diameter drilling tool device according to claim 1, characterized in that: The blade head (2) is hollowed out.

4. The large-diameter drilling tool device according to claim 1, characterized in that: The cutter head (2) and the cutter disc (1) are forged as one piece.

5. The large-diameter drilling tool device according to claim 1, characterized in that: The cutter head (2) is of a trapezoidal structure.

6. The large-diameter drilling tool device according to claim 1, characterized in that: Also includes: A movable pressing block, wherein the movable pressing block is suitable for pressing the blade (3).

7. The large-diameter drilling tool device according to claim 1, characterized in that: Also includes: A chip removal groove is provided on the outer surface of the cutter head (2), the chip removal groove is spiral-shaped, and is used to remove chips generated during the drilling process.

8. The large-diameter drilling tool device according to claim 1, characterized in that: Also includes: A coolant channel, wherein the coolant channel is arranged on the cutter disc (1), and the coolant channel is suitable for providing coolant to the cutter head (2) and the blade (3).

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