Novel cutter for machining cambered surface
By using a toothed insert structure and a diamond-shaped insert design, the problem of poor tool rigidity was solved, achieving stability and cost-effectiveness in the machining of curved surfaces.
Patent Information
- Application Number
- CN202423215616.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing cutting tools have poor rigidity when machining curved surfaces, resulting in unstable dimensions, rapid wear, and high costs, which cannot meet the needs of mass production.
The tool holder and boring tool body are connected by a toothed insert structure, and a diamond-shaped insert is used. The position of the insert is adjusted by a fine-tuning mechanism to ensure rigidity and accuracy.
It improves the rigidity and dimensional stability of the cutting tool, reduces wear rate and cost, and increases machining efficiency.
Smart Images
Figure CN223557284U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to processing tool technical field, especially relate to a novel tool for processing arc surface. BACKGROUND
[0002] When the workpiece surface of the similar square box has the inner arc surface of the large radius 1 / 6 and the end face, and has the window in the middle, as shown in the figure, there is intermittent cutting. Figure 1 The general processing scheme is to adopt the customized T-shaped three-flank milling cutter, as shown in the figure, to coarsely and finely mill the arc surface, the cutter head diameter is same with the arc surface diameter, to avoid the cutter interference during processing, the distance between the cutter bar part and the cutter head should be greater than the distance between the workpiece arc surface and the end face, and the blade adopts the embedded hard alloy blade. Figure 2 The size difference between the cutter head and the handle leads to the poor rigidity of the cutter as a whole, the blade wears fast during intermittent cutting, the customized cutter cannot be used continuously after wearing, size over tolerance, size instability, shape tolerance over tolerance and other problems exist during the arc surface processing, the waste rate is high, the efficiency is low, the cutter cost is high, and the batch production requirements cannot be met. CONTENT OF THE UTILITY MODEL
[0003] The utility model discloses a novel tool for processing arc surface, which can have good rigidity.
[0004] To achieve the above object, the utility model adopts the technical scheme of a novel tool for processing arc surface, which comprises a boring cutter main body, a cutter bar and a blade.
[0005] The bottom of the cutter bar is provided with a tooth-shaped groove, the sliding seat of the boring cutter main body is provided with a tooth-shaped embedding block matched with the tooth-shaped groove, the tooth-shaped groove is attached to the tooth-shaped embedding block, the cutter bar is fixed on the sliding seat of the boring cutter main body through the first screw, and one end of the cutter bar extends out of the sliding seat.
[0006] The end of the cutter bar away from the boring cutter main body is provided with a blade groove, the blade is fixed in the blade groove through the second screw, and the blade tip of the blade extends out of the blade groove.
[0007] Preferably, the blade is a rhombic blade.
[0008] Compared with the prior art, the novel tool for processing arc surface has the following advantages:
[0009] The cutter bar and the boring cutter body are tightly combined by adopting the tooth-shaped block structure, and have good rigidity; the diamond-shaped blade is adopted, the blade clearance angle is large, and the size precision and shape tolerance of the curved surface can be ensured; the cutter can effectively solve the problems of high waste rate caused by poor cutter rigidity, unstable size during intermittent cutting, fast blade wear, unstable quality and the like, compared with the T-shaped three-flank milling cutter, has the advantages of strong cutter rigidity, low cutter cost, size fine adjustment, size stability, high efficiency and the like. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 is a schematic view of an arc surface workpiece structure;
[0011] Figure 2 is a schematic view of a T-shaped three-flank milling cutter structure in the prior art;
[0012] Figure 3 is a schematic view of the utility model structure;
[0013] Figure 4 is a schematic view of the cutter bar and the boring cutter body connection structure;
[0014] Figure 5 is a schematic view of the tooth-shaped groove and the tooth-shaped block connection structure. DETAILED DESCRIPTION
[0015] The utility model is further described below in combination with the drawings and specific embodiments.
[0016] As shown in Figure 3 , a novel cutter for machining an arc surface includes a boring cutter body 1, a cutter bar 2 and a blade 3,
[0017] As shown in Figure 4 and 5 , the cutter bar 2 is provided with a tooth-shaped groove at the bottom, wherein the cutter bar 2 can be a turning tool cutter bar; the boring cutter body 1 is provided with a tooth-shaped block matched with the tooth-shaped groove on the sliding seat 11; the tooth-shaped groove is attached to the tooth-shaped block, the cutter bar 2 is fixed on the sliding seat 11 of the boring cutter body 1 through the first screw 21, one end of the cutter bar 2 extends out of the sliding seat 11, and the cutter bar 2 and the boring cutter body 1 are tightly combined by adopting the tooth-shaped block structure, so that the connection is reliable and stable, and good rigidity is achieved, wherein the boring cutter body 1 is a standard boring cutter in the prior art, the boring cutter body 1 is provided with a fine adjustment mechanism, the sliding seat 11 on the boring cutter body 1 is slid by adjusting the fine adjustment mechanism, so that the cutter bar 2 moves;
[0018] As shown in Figure 3As shown, the cutter bar 2 is provided with a blade groove at one end away from the boring cutter body 1; the blade 3 is fixed in the blade groove by a second screw 31; the blade tip of the blade 3 extends out of the blade groove and performs cutting machining on the arc surface, wherein the distance between the blade tip of the blade 3 and the axis of the boring cutter body 1 is the radius of the machined arc surface; the cutter bar 2 and the blade 3 are moved by adjusting the fine adjustment mechanism, so that workpieces with different arc degrees are conveniently machined.
[0019] In the embodiment, the blade 3 is a rhombic blade, wherein a 35° rhombic blade is adopted, and the blade 3 has a large clearance angle, which can ensure the dimensional accuracy and shape tolerance of the arc surface.
[0020] The working principle of the utility model is as follows: the tooth-shaped groove at the bottom of the cutter bar 2 is connected with the tooth-shaped insert block on the sliding seat 11 of the boring cutter body 1, so that the connection between the cutter bar 2 and the boring cutter body 1 is more reliable and stable; the distance between the blade tip position of the blade 3 and the axis of the boring cutter body 1 is the radius of the machined arc surface; the position of the blade 3 is adjusted according to the actual machining size of the arc surface by adjusting the fine adjustment mechanism on the boring cutter body 1.
Claims
1. A novel cutting tool for machining curved surfaces, characterized in that, It includes the boring tool body (1), the tool holder (2), and the cutting tool (3). The bottom of the tool holder (2) is provided with a toothed groove; the sliding seat (11) of the boring tool body (1) is provided with a toothed insert that matches the toothed groove; the toothed groove and the toothed insert are in contact, and the tool holder (2) is fixed to the sliding seat (11) of the boring tool body (1) by a first screw (21); one end of the tool holder (2) extends out of the sliding seat (11); The tool holder (2) has a blade groove at one end away from the boring tool body (1); the blade (3) is fixed in the blade groove by a second screw (31); the tip of the blade (3) extends out of the blade groove.
2. The novel cutting tool for machining arc surfaces according to claim 1, characterized in that, The blade (3) is a rhomboid blade.