Integral alloy boring cutter with cutting groove

Abstract

The utility model relates to the technical field of machining, and particularly discloses an integral alloy boring cutter with a cutting groove, which comprises a cutter head and a cutter body, the cutter head is fixedly connected with the cutter body and is positioned at one end of the cutter body, the integral length of the cutter head and the cutter body is 45mm, the cutter head is provided with a cutter tip included angle alpha, the cutter tip included angle alpha is 60 degrees, and the cutter tip included angle alpha is 45 degrees. The end portion of the included angle alpha of the tool nose is provided with an arc chamfer R1 with the radius of 0.25 mm, the upper end of the tool bit is further provided with an inverted triangular caulking groove, the length L of the tool bit is 3.2 mm, and the tool bit is further provided with an inclined angle beta which is 8 degrees. The inverted triangular caulking groove structure is additionally arranged at the end part of the tool bit, so that chips can be effectively prevented from being accumulated on the tool bit and a workpiece during machining, meanwhile, an operator can be prevented from being scratched, the service life of the boring tool is prolonged, the surface smoothness of the machined workpiece is improved, complicated and difficult materials are favorably machined, and the production cost is reduced. The safety of the boring cutter in use is improved, and machining errors are reduced.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a solid alloy boring tool with a break-off groove. Background Technology

[0002] Currently, boring tools can be classified into single-edge boring tools, double-edge boring tools, and triple-edge boring tools according to the number of cutting edges. Single-edge boring tools have a simple structure and are suitable for machining holes with high precision requirements. Multi-edge boring tools can improve machining efficiency and are suitable for roughing or machining holes with larger diameters. During the boring process, a large amount of debris will accumulate at the bottom of the hole due to gravity, affecting the boring efficiency.

[0003] The prior art CN116618722A provides a deep blind hole boring tool with automatic chip removal, comprising: a fixed chuck; a support rod, the support rod being fixedly connected to one side end of the fixed chuck; a cleaning assembly, the cleaning assembly being fixedly connected to the end of the support rod away from the fixed chuck; a mounting base, the mounting base being fixedly connected to one end of the cleaning assembly; and a cutting head, the cutting head being fixedly connected to the mounting base by bolts. The cleaning assembly includes a mounting rod, the side wall of which has a mounting groove, a storage box installed in the mounting groove, one side of which is corrugated and has a storage opening, and an arc-shaped baffle is fixedly provided on the inner wall of the end of the storage box placed inside the mounting rod.

[0004] However, in the existing technology, the boring tool has a relatively complex structure, is difficult to process, and has a short service life. Utility Model Content

[0005] The purpose of this invention is to provide a solid alloy boring tool with a chip break groove, which aims to solve the technical problems of existing boring tools having a complex structure, high machining difficulty, and short service life.

[0006] To achieve the above objectives, this utility model employs an integral alloy boring tool with a break-off groove, comprising a tool head and a tool body. The tool head is fixedly connected to the tool body and located at one end of the tool body. The overall length of the tool head and the tool body is 45mm. The tool head has a tip angle α, which is 60°. The end of the tip angle α has a rounded chamfer R1 with a radius of 0.25mm. The upper end of the tool head also has an inverted triangular groove. The length L of the tool head is 3.2mm. The tool head also has an inclination angle β, which is 8°.

[0007] The blade tip has a height difference A of 0.2 mm.

[0008] The end of the blade has a chamfer γ, which is 15.62°.

[0009] The end of the blade body also has an arc R2 with a radius of 10.5mm, and the distance between the arc R2 and the tip of the blade head is 9.5mm.

[0010] The blade body also has a limiting tangent, and the distance between the limiting tangent and the center of the blade body is 2.5mm.

[0011] The blade body also has a round shank stepped platform, which is located on the outer wall of the blade body, and the distance between the round shank stepped platform and the blade tip is 15.55mm.

[0012] The blade body also has two sets of protrusions, which are respectively disposed on the outer wall of the blade body. The two sets of protrusions are respectively perpendicular to the limiting cutting surface and are disposed opposite to each other.

[0013] The height of each group of protrusions is 1.5mm and the width is 0.1mm.

[0014] The beneficial effects of this utility model of an integral alloy boring tool with a chip break groove are as follows: the addition of the inverted triangular groove structure at the end of the tool head can effectively prevent the accumulation of chips on the tool head and workpiece during machining, and can also prevent scratches to the operator, increase the service life of the boring tool, improve the surface finish of the machined workpiece, facilitate the machining of complex and difficult materials, improve the safety of the boring tool during use, and reduce machining errors. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an integral alloy boring tool with a break-off groove according to this utility model.

[0017] Figure 2 This is a top view of a solid alloy boring tool with a break-off groove according to this utility model.

[0018] Figure 3 This is a front view of a solid alloy boring tool with a break-off groove according to this utility model.

[0019] Figure 4 This is a left view of a solid alloy boring tool with a break-off groove according to this utility model.

[0020] Figure 5This is a right view of a solid alloy boring tool with a break-off groove according to this utility model.

[0021] 101-Cutter head, 102-Cutter body, 103-Inverted triangular groove, 104-Limiting cut surface, 105-Round shank trapezoidal platform, 106-Boss. Detailed Implementation

[0022] Please see Figures 1 to 5 , Figure 1 This is a schematic diagram of the structure of an integral alloy boring tool with a break-off groove according to this utility model; Figure 2 This is a top view of a solid alloy boring tool with a break-off groove according to this utility model; Figure 3 This is a front view of a solid alloy boring tool with a break-off groove according to this utility model; Figure 4 This is a left view of a solid alloy boring tool with a break-off groove according to this utility model; Figure 5 This is a right view of a solid alloy boring tool with a break-off groove according to this utility model.

[0023] This utility model provides an integral alloy boring tool with a break-off groove, including a tool head 101 and a tool body 102. The tool head 101 is fixedly connected to the tool body 102 and is located at one end of the tool body 102. The overall length of the tool head 101 and the tool body 102 is 45mm. The tool head 101 has a tool tip angle α, which is 60°. The end of the tool tip angle α has a rounded chamfer R1 with a radius of 0.25mm. The upper end of the tool head 101 also has an inverted triangular groove 103. The length L of the tool head 101 is 3.2mm. The tool head 101 also has an inclination angle β, which is 8°.

[0024] In this embodiment, the inverted triangular groove 103 structure added to the end of the cutting head 101 effectively prevents chips from accumulating on the cutting head 101 and the workpiece during machining. It also prevents scratches to the operator, increases the service life of the boring tool, improves the surface finish of the workpiece, facilitates the machining of complex materials, enhances the safety of the boring tool during use, and reduces machining errors. The circular arc chamfer R1 improves the durability of the cutting head 101. The circular arc chamfer R1 makes the stress distribution of the cutting head 101 more uniform, avoiding excessive stress concentration that could lead to cracks and chipping. This improves the strength and toughness of the cutting head 101, extends its service life, better withstands cutting forces, reduces wear and damage to the cutting tip, and allows for more stable contact with the workpiece during cutting, reducing cutting vibration and resulting in a smooth machined surface with reduced surface roughness. The circular arc chamfer R1 also facilitates chip formation. The design facilitates chip removal, making it easier for chips to break and curl, preventing excessively long chips from wrapping around the cutting head 101. This reduces chip interference with the machining process, improves machining efficiency, and enhances machining stability. The circular arc chamfer R1 compensates for dimensional changes caused by tool wear, maintaining dimensional stability, reducing machining errors, and improving machining accuracy. The inverted triangular groove 103 improves the force distribution on the cutting edge of the cutting head 101, ensuring more even force transmission and reducing local stress concentration. This lowers the risk of wear and damage to the cutting head 101, extending its service life. The chamfer β allows the cutting head 101 to better contact the workpiece, facilitating internal hole cutting and resulting in smoother and more uniform boring of the workpiece. This reduces resistance during cutting, making the process smoother, lowering cutting temperature and force, and extending the service life of the cutting head 101.

[0025] Furthermore, the tip of the cutter head 101 has a height difference A of 0.2 mm.

[0026] In this embodiment, the high-low position difference A structure can reduce the friction and wear of the cutting head 101, reduce the influence of radial runout, and improve the machining accuracy of the cutting head 101.

[0027] Furthermore, the end of the blade 102 has a chamfer γ, which is 15.62°.

[0028] In this embodiment, the chamfer γ can prevent the boring tool from colliding during the cutting process, reduce the probability of collision, and at the same time, it can better process the workpiece and avoid contact collision between the boring tool and the workpiece.

[0029] Furthermore, the end of the blade body 102 also has an arc R2 with a radius of 10.5 mm, and the distance between the arc R2 and the tip of the blade head 101 is 9.5 mm.

[0030] In this embodiment, the setting of the arc R2 allows the end of the tool body 102 and the tool head 101 to better enter the interior of the workpiece, avoiding collisions between the tool body 102 and the workpiece during boring, and increasing the machining space of the tool body 102.

[0031] Furthermore, the blade body 102 also has a limiting cutting surface 104, the distance between the limiting cutting surface 104 and the center of the blade body 102 is 2.5mm.

[0032] In this embodiment, the limiting cutting surface 104 can improve the clamping stability of the tool body 102, avoid vibration during the cutting process, and make the workpiece machining more accurate.

[0033] Furthermore, the blade body 102 also has a round shank step 105, which is located on the outer wall of the blade body 102, and the distance between the round shank step 105 and the tip of the blade head 101 is 15.55mm.

[0034] In this embodiment, the round shank ladder 105 can effectively improve machining efficiency during use, avoiding the tedious process of changing boring tools or adjusting machining parameters multiple times in traditional machining methods, significantly improving machining efficiency and enhancing the overall versatility and flexibility of the boring tool.

[0035] Furthermore, the blade body 102 also has two sets of bosses 106, which are respectively disposed on the outer wall of the blade body 102. The two sets of bosses 106 are respectively perpendicular to the limiting cutting surface 104 and are disposed opposite to each other.

[0036] Furthermore, each set of protrusions 106 has a height of 1.5 mm and a width of 0.1 mm.

[0037] In this embodiment, the two sets of bosses 106 can increase the overall rigidity of the tool and reduce tool deformation caused by cutting forces during the cutting process, thereby improving machining accuracy and surface quality. When machining deep holes and high-hardness materials, the bosses 106 can effectively enhance the bending resistance of the tool and prevent the tool body 102 from vibrating and breaking due to insufficient rigidity. The bosses 106 can serve as the installation and positioning reference for the tool body 102, ensuring that the tool body 102 is installed in the correct installation position, improving the installation accuracy and repeatability of the tool body 102, and enabling fast and accurate installation of the tool body 102. The bosses 106 can prevent cutting forces from concentrating on one point, thereby reducing local stress at the tool tip and improving the overall service life and machining stability of the boring tool.

[0038] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. An integral alloy boring tool with a broken cutting groove, characterized in that, comprising a tool head and a tool body, the tool head is fixedly connected with the tool body and located at one end of the tool body, the integral length of the tool head and the tool body is 45 mm, the tool head has a tool tip included angle α, the tool tip included angle α is 60°, the end of the tool tip included angle α has a circular arc chamfer R1 with a radius of 0.25 mm, the upper end of the tool head also has a reverse triangular nest groove, the length L of the tool head is 3.2 mm, the tool head also has an inclination angle β, and the inclination angle β is 8°.

2. The integral alloy boring tool with a broken cutting groove according to claim 1, characterized in that, the tool head has a high-low difference A of 0.2 mm in height at the tool tip.

3. The integral alloy boring tool with a broken cutting groove according to claim 1, characterized in that, the end of the tool body has a specific chamfer γ, and the chamfer γ is 15.62°.

4. The integral alloy boring tool with a broken cutting groove according to claim 1, characterized in that, the end of the tool body also has a circular arc R2 with a radius of 10.5 mm, and the distance between the circular arc R2 and the tool tip of the tool head is 9.5 mm.

5. The integral alloy boring tool with a broken cutting groove according to claim 1, characterized in that, the tool body also has a limiting cutting surface, and the limiting cutting surface is 2.5 mm away from the center of the tool body.

6. The integral alloy boring tool with a broken cutting groove according to claim 1, characterized in that, the tool body also has a round handle ladder, and the round handle ladder is located on the outer wall of the tool body, and the distance between the round handle ladder and the tool tip of the tool head is 15.55 mm.

7. The integral alloy boring tool with a broken cutting groove according to claim 5, characterized in that, the tool body also has two groups of bosses, and the two groups of bosses are respectively arranged on the outer wall of the tool body, the two groups of bosses are respectively arranged vertically with the limiting cutting surface, and the two groups of bosses are oppositely arranged.

8. The integral alloy boring tool with a broken cutting groove according to claim 7, characterized in that, the height of each group of bosses is 1.5 mm, and the width is 0.1 mm.

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