Compound arc-angle chamfering cutter

Abstract

The utility model relates to metal cutting tool technical field, concretely relates to a compound arc angle chamfering cutter, including a plurality of different size cutting edge tool bit and handle, the tool bit and handle are one -piece integrated molding, the axis of tool bit and the axis error of handle is within 0.01mm, and six cutting edges are opened on the tool bit, the cutting edge includes arc edge and side edge two parts, and corresponds R angle and side wall respectively, the utility model discloses each cutting tool is equipped with side cutting edge, can realize the milling machining of arc R angle and side wall simultaneously, significantly improves processing efficiency, greatly reduces machine change tool frequency and time -consuming, effectively shortens the overall processing period, and the reduction of cutting tool quantity not only reduces the storage space, but also saves cutting tool arrangement time, reduces cutting tool management cost, also further improves the cutting tool efficiency.

Description

Technical Field

[0001] This utility model relates to the field of metal cutting tool technology, specifically to a composite rounded corner chamfering tool. Background Technology

[0002] In the field of machining, most metal workpieces require chamfering of their sharp edges after processing, with rounded corners (R-angles) being particularly challenging. Currently, this workstation commonly faces processing bottlenecks: previously, it was often machined using round nose cutters or ball end mills, or relied on manual operation by fitters. This not only resulted in low processing efficiency but also poor chamfering quality stability, easily leading to dimensional deviations or substandard surface roughness. Although some companies use traditional chamfering tools, they still need to use rounded corner cutters and end mills separately to complete the R-angle and sidewall machining. This process not only leads to high tool change frequency and long processing cycles but also increases procurement costs due to the variety of tool types (requiring the simultaneous purchase of multiple types of tools), increases tool management complexity (large storage space occupation, cumbersome sharpening / replacement processes), and reduces tool allocation efficiency (requiring frequent coordination of inventory and usage of different tools). These pain points represent a triple contradiction of "efficiency, quality, and cost," urgently requiring process innovation through integrated tool design. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a composite rounded corner chamfering tool.

[0004] The specific technical solution is as follows: A composite rounded corner chamfering tool includes multiple cutting edge heads of different sizes and a tool holder. The cutting edge head and the tool holder are integrally machined in one piece. The error between the axis of the cutting edge head and the axis of the tool holder is within 0.01mm. The cutting edge head has 6 cutting edges. The cutting edge includes two parts: a rounded edge and a side edge, which correspond to the radius (R) and the side wall, respectively.

[0005] Both ends of the bottom edge of the circular arc blade are provided with avoidance angles to prevent interference with the workpiece.

[0006] The radius (R) of the circular arc blade is R0.9mm, and the cutting depth of the side blade is 0.3mm.

[0007] Compared with the prior art, the present invention has the following beneficial technical effects: This utility model boasts superior high-efficiency machining performance and cost optimization advantages. It can simultaneously complete the machining of rounded corners and chamfers on the internal and external contours of a workpiece, such as openings and inner / outer contours, in a single machining operation. Its unique feature is that each tool is equipped with a side cutting edge, enabling simultaneous milling of rounded corners and sidewalls, significantly improving machining efficiency. Compared to traditional machining methods, it drastically reduces the number of tool changes and time spent, effectively shortening the overall machining cycle. In terms of cost control, this tool also performs exceptionally well. Reducing the number of forming tools directly lowers procurement costs; the reduced tool quantity not only saves storage space but also saves tool preparation time, lowering tool management costs; simultaneously, the reduced number and time required for tool preparation further improves tool preparation efficiency. Whether in improving machining efficiency, reducing costs, or optimizing management, this composite non-standard forming tool is an ideal choice in the machining field. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the planar structure of the composite rounded corner chamfering tool of this utility model; Figure 2 This is a three-dimensional structural diagram of the composite rounded corner chamfering tool of this utility model; In the diagram, 1 is the blade tip; 2 is the handle; 3 is the curved blade; 4 is the side blade; 5 is the clearance angle; and 6 is the bottom blade. Detailed Implementation

[0009] The present invention will now be described in detail with reference to the accompanying drawings, but the scope of protection of the present invention is not limited by the accompanying drawings.

[0010] Figure 1 This is a schematic diagram of the planar structure of the composite arc-shaped chamfering tool of this utility model. Figure 2 The figure shows a three-dimensional structural diagram of the composite arc-angle chamfering tool of this utility model. The composite arc-angle chamfering tool includes multiple cutting edges 1 of different sizes and a shank 2. The cutting edges 1 and shank 2 are integrally machined in one piece. The error between the axis of the cutting edge 1 and the axis of the shank 2 is within 0.01mm. The cutting edge 1 has six cutting edges; each cutting edge includes an arc-shaped cutting edge 3 and a side cutting edge 4, corresponding to the radius (R) angle and the sidewall, respectively. Both ends of the bottom cutting edge 6 of the arc-shaped cutting edge 3 are provided with clearance angles 5 to avoid interference with the workpiece. The radius (R) angle of the arc-shaped cutting edge 3 is R0.9mm, and the cutting depth of the side cutting edge 4 is 0.3mm. While finishing the radius (R), it can also cut the sidewall of the workpiece, greatly shortening the roughing and finishing time.

Claims

1. A composite rounded corner chamfering tool, characterized in that: It includes multiple cutting edge heads and tool holders of different sizes. The cutting edge head and tool holder are machined into one piece. The error between the axis of the cutting edge head and the axis of the tool holder is within 0.01mm. There are 6 cutting edges on the cutting edge head. The cutting edge head includes two parts: a circular arc edge and a side edge, which correspond to the radius (R) and the side wall, respectively.

2. The composite rounded corner chamfering tool according to claim 1, characterized in that: Both ends of the bottom edge of the circular arc blade are provided with avoidance angles to prevent interference with the workpiece.

3. The composite rounded corner chamfering tool according to claim 1, characterized in that: The radius (R) of the circular arc blade is R0.9mm, and the cutting depth of the side blade is 0.3mm.

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