Large aperture combined boring cutter with tool setting function

Abstract

The utility model provides a big aperture combined boring cutter with the function of tool setting, relates to machining technical field, the utility model discloses big aperture combined boring cutter mainly comprises handle, strip blade body, rough boring cutter, fine boring cutter and tool setting rotating arm, handle has the taper shank, mandrel and flange plate of coaxial arrangement, and handle installs the middle part of strip blade body through bolt, mandrel and flange plate cooperation, is provided with two tool setting groove for installing rough boring cutter, fine boring cutter at two ends of strip blade body each, tool setting rotating arm detachably installs on mandrel, and is provided with the tool setting plate for adjusting the extension of rough boring cutter, fine boring cutter at the end of tool setting rotating arm, the utility model discloses the extension of rough boring cutter, fine boring cutter is adjusted through detachable tool setting rotating arm, and then can guarantee the size requirement of boring hole under the condition of lacking measuring tool. The utility model has the characteristics of compact structure, easy operation, high tool setting precision, and greatly reduces the processing difficulty of big aperture part.

Description

Technical Field

[0001] This utility model is specifically a large-diameter combined boring tool with tool setting function, which relates to the field of machining technology. Background Technology

[0002] To meet production needs, a large hole of φ1650±0.5mm needs to be bored into the partition of the part. The current problem is that there is no boring tool with such a large diameter, and there is also a lack of corresponding measuring tools. We can only make the boring tool ourselves and adjust the extension of the rough boring tool and the fine boring tool by tool setting, so as to ensure the dimensional requirements of the bored hole in the absence of measuring tools. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model discloses a large-diameter combined boring tool with tool setting function, adopting the following technical solution: A large-diameter combined boring tool with tool setting function mainly consists of a tool holder, a strip-shaped tool body, a roughing tool, a finishing tool, and a tool setting arm. The tool holder has a coaxially arranged tapered shank, mandrel, and flange. The tool holder is installed in the middle part of the strip-shaped tool body by bolts, mandrel, and flange. Two tool clamping grooves for installing the roughing tool and the finishing tool are provided at each end of the strip-shaped tool body. The tool setting arm is detachably installed on the mandrel. A tool setting plate for adjusting the extension of the roughing tool and the finishing tool is provided at the end of the tool setting arm.

[0004] Further improve the technical solution: The rough boring tool is installed in the lower tool holder groove, and the fine boring tool is installed in the upper tool holder groove.

[0005] Further improvement of the technical solution: An upper cylindrical surface and a lower cylindrical surface are coaxially arranged on the tool setting plate, the radius of the upper cylindrical surface is larger than the radius of the lower cylindrical surface; the upper cylindrical surface contacts the tip of the fine boring tool and is used to adjust the extension of the fine boring tool; the lower cylindrical surface contacts the tip of the rough boring tool and is used to adjust the extension of the rough boring tool.

[0006] Further improvement of the technical solution: A nut is screwed to the lower end of the mandrel, and the tool setting arm is detachably mounted on the mandrel through the nut.

[0007] Further improvements to the technical solution: The cross-sectional shape of the strip-shaped cutter body is I-shaped, and the clamping grooves are respectively set on the upper wing plate and the lower wing plate.

[0008] After implementing the above technical solution, the beneficial effects of this utility model compared to the prior art are: The large-diameter combination boring tool of this invention uses a detachable tool setting arm to adjust the extension of the roughing and finishing boring tools, which can ensure the dimensional requirements of the boring hole even in the absence of measuring tools.

[0009] This invention features a compact structure, ease of operation, and high tool setting accuracy, significantly reducing the machining difficulty of large-diameter parts. Attached Figure Description

[0010] Appendix Figure 1 The diagram shown is a schematic of the overall structure of this large-diameter combined boring tool.

[0011] Appendix Figure 2 The diagram shown is an exploded view of this large-diameter combined boring tool.

[0012] Appendix Figure 3 The diagram shown is a schematic of the strip-shaped blade.

[0013] Appendix Figure 4 The diagram shows the structure of this large-diameter combined boring tool during tool setting.

[0014] Appendix Figure 5 The diagram shows the structure of this large-diameter combined boring tool during boring.

[0015] In the attached diagram: 1. Tool holder; 1.1. Tapered shank; 1.2. Flange; 1.3. Mandrel; 2. Strip-shaped tool body; 2.1. Upper tool clamping groove; 2.2. Lower tool clamping groove; 2.3. Mandrel hole; 2.4. Screw; 3. Rough boring tool; 4. Finish boring tool; 5. Tool setting arm; 5.1. Tool setting plate; 5.2. Upper cylindrical surface; 5.3. Lower cylindrical surface; 6. Nut; 7. Bolt; 8. Partition. Detailed Implementation

[0016] The preferred embodiments of this utility model are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of this utility model and are not intended to limit the scope of protection of this utility model. It should be noted that in the description of this utility model, terms such as "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation and positional relationship, and therefore should not be construed as a limitation of this utility model. It should also be noted that in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0017] A large-diameter combination boring tool with tool setting function relates to the field of machining technology, and is mainly used for boring large holes of φ1650±0.5mm on the partition of parts. The composition structure and working principle of this utility model are described in detail below.

[0018] See attached document Figure 1-3 This utility model's large-diameter combined boring tool mainly consists of a tool holder 1, a strip-shaped tool body 2, a roughing tool 3, a finishing tool 4, and a tool setting arm 5. The tool holder 1 has a coaxially arranged tapered shank 1.1, a mandrel 1.3, and a flange 1.2. The tapered shank 1.1 is used for connection with the machine tool spindle, while the mandrel 1.3 and flange 1.2 are used for connection with the strip-shaped tool body 2. As a rotation reference, the mandrel 1.3 has high coaxiality and low runout. Multiple threaded holes and a mandrel hole 2.3 that mates with the mandrel 1.3 are provided in the middle of the strip-shaped tool body 2. The tool holder 1 is installed in the middle of the strip-shaped tool body 2 via bolts 7, the mandrel 1.3, and the flange 1.2. During operation, the tool holder 1 drives the strip-shaped tool body 2 to rotate.

[0019] The strip-shaped tool body 2 has an I-shaped cross-section, and two tool clamping slots are provided at each end of the strip-shaped tool body 2 for mounting the rough boring tool 3 and the finish boring tool 4. The rough boring tool 3 is installed in the lower tool clamping slot 2.2, which is located on the lower flange plate; the finish boring tool 4 is installed in the upper tool clamping slot 2.1, which is located on the upper flange plate.

[0020] A nut 6 is screwed to the lower end of the mandrel 1.3. The tool setting arm 5 has a hinge hole that mates with the mandrel 1.3. The tool setting arm 5 is detachably mounted on the mandrel 1.3 via the nut 6. At the end of the tool setting arm 5, there is a tool setting plate 5.1 for adjusting the extension of the roughing tool 3 and the finishing tool 4. An upper cylindrical surface 5.2 and a lower cylindrical surface 5.3 are coaxially arranged on the tool setting plate 5.1, wherein the radius of the upper cylindrical surface 5.2 is larger than the radius of the lower cylindrical surface 5.3.

[0021] Tool setting process: Refer to the appendix Figure 4 Before machining, first install the tool setting arm 5 on the mandrel 1.3 using nut 6. Then rotate the tool setting arm 5 to align the tool setting plate 5.1 with one end of the strip-shaped tool body 2. Move the rough boring tool 3 so that its tip rests on the lower cylindrical surface 5.3, and then tighten the screw 2.4 to fix the rough boring tool 3 in the lower clamping groove 2.2, thus completing the adjustment of the rough boring tool 3's extension. Then move the finish boring tool 4 so that its tip rests on the upper cylindrical surface 5.2, and then tighten the screw 2.4 to fix the finish boring tool 4 in the upper clamping groove 2.1, thus completing the adjustment of the finish boring tool 4's extension. Finally, rotate the tool setting arm 5 to align the tool setting plate 5.1 with the other end of the strip-shaped tool body 2, and repeat the above tool setting process to ensure that the rough boring tool 3 and finish boring tool 4 at both ends have the same extension.

[0022] See attached document Figure 5 After tool setting, remove nut 6 and tool setting arm 5, and start the machine tool to bore the partition 8. Because the partition 8 has a small thickness, and there is a large distance between the rough boring tool 3 and the finish boring tool 4, the rough boring tool 3 can rough bore the partition 8 at a lower speed, a larger feed rate and a smaller depth of cut, while the finish boring tool 4 can finish bore the partition 8 at a higher speed, a smaller feed rate and a smaller depth of cut, without interfering with each other.

[0023] Since the radius of the upper cylindrical surface 5.2 is larger than the radius of the lower cylindrical surface 5.3, the radius of the lower cylindrical surface 5.3 is equivalent to the boring radius of the roughing boring tool 3, and the radius of the upper cylindrical surface 5.2 is equivalent to the boring radius of the finishing boring tool 4. In other words, without needing to measure the boring hole size, the final boring hole size of the boring tool can be determined simply by setting the tool.

[0024] In summary, the large-diameter combination boring tool of this invention uses a detachable tool setting arm 5 to adjust the extension of the roughing tool 3 and the finishing tool 4, thereby ensuring the dimensional requirements of the boring hole in the absence of measuring tools.

[0025] It is worth noting that the content not described in detail in the above embodiments is prior art. It is also worth noting that any additions, subtractions, substitutions, and improvements made by those skilled in the art based on the structure and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A large-diameter combined boring tool with tool setting function, characterized in that: It mainly consists of a tool holder, a strip-shaped tool body, a roughing tool, a finishing tool, and a tool setting arm. The tool holder has a coaxially arranged tapered shank, mandrel, and flange. The tool holder is installed in the middle part of the strip-shaped tool body by bolts, mandrel, and flange. Two tool clamping grooves for installing the roughing tool and the finishing tool are provided at each end of the strip-shaped tool body. The tool setting arm is detachably installed on the mandrel. At the end of the tool setting arm, there is a tool setting plate for adjusting the extension of the roughing tool and the finishing tool.

2. A large-diameter combined boring tool with tool-setting function as described in claim 1, characterized in that: The roughing tool is installed in the lower tool holder groove, and the finishing tool is installed in the upper tool holder groove.

3. A large-diameter combined boring tool with tool-setting function as described in claim 1 or 2, characterized in that: The tool setting plate has an upper cylindrical surface and a lower cylindrical surface coaxially arranged, with the radius of the upper cylindrical surface being larger than that of the lower cylindrical surface. The upper cylindrical surface contacts the tip of the finish boring tool and is used to adjust the extension of the finish boring tool. The lower cylindrical surface contacts the tip of the rough boring tool and is used to adjust the extension of the rough boring tool.

4. A large-diameter combined boring tool with tool-setting function as described in claim 1, characterized in that: A nut is screwed to the lower end of the mandrel, and the tool setting arm is detachably mounted on the mandrel via the nut.

5. A large-diameter combined boring tool with tool-setting function as described in claim 1, characterized in that: The cross-sectional shape of the strip-shaped cutter body is I-shaped, and the tool clamping grooves are respectively set on the upper wing plate and the lower wing plate.

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