Cutter for machining center slot

By designing a stepped insert and an angle reference surface for machining center slot tools, the problem of requiring two processes and two clamping operations for right-angle keyway structures in existing technologies has been solved. This allows keyway machining to be completed in one operation on a CNC machining center, reducing costs and improving dimensional stability.

CN223819712UActive Publication Date: 2026-01-23D MAG KUNSHAN NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202422846251.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2026-01-23
Estimated Expiration
2034-11-21

AI Technical Summary

Technical Problem

Existing technology requires two processes and two clamping operations when machining right-angle keyway structures, resulting in high costs and a high rate of dimensional defects.

Method used

Design a tool for machining center slots, using stepped inserts and angular reference surfaces, which can complete keyway machining in one setup on a CNC machining center, and control cutting resistance and stabilize product dimensions through stepped cutting depth.

Benefits of technology

It reduces the number of processes and clamping times, lowers costs, and eliminates dimensional defects caused by repeated positioning in multiple processes, making it suitable for processing other products.

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Abstract

The utility model discloses a cutter for machining a central slot, which comprises a cutter bar, blades are uniformly distributed on the circumferential surface of the cutter bar, and clearance positions are arranged at the joints of the blades. The key groove characteristics and other characteristics of the product can be processed in one process of a processing center, so that the process and clamping times are reduced.
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Description

Technical Field

[0001] This utility model relates to a cutting tool, specifically a cutting tool for a machining center slot. Background Technology

[0002] Cutting tools help produce turned parts on lathes and shape materials into the required form. Currently, to machine a right-angle keyway structure, a CNC machining center is needed to machine the bottom hole structure, and then a gear shaper is used to mill the keyway, which requires two processes and two clamping operations, resulting in excessive costs. Utility Model Content

[0003] The technical problem to be solved by this utility model is the high cost and repeated clamping. This utility model provides a tool for a machining center slot, which can process the keyway and other features of the product in the previous process of the machining center, thereby reducing the number of processes and clamping times.

[0004] This utility model is achieved through the following technical solution:

[0005] A tool for a machining center slot includes a tool holder, with inserts evenly distributed on the circumference of the tool holder, and clearances provided at the insert connections.

[0006] Furthermore, the blade is fixedly connected to the blade holder.

[0007] Furthermore, the inserts are stepped inserts, with a stepped design that allows for a gradual increase in cutting depth during plunge milling, resulting in low cutting resistance and stable product dimensions.

[0008] Furthermore, an angular reference plane is set on the tool holder as a calibration plane when the tool is loaded into the tool holder, controlling the angular dimensional requirements of the keyway. The angular reference plane is set on...

[0009] The beneficial effects achieved by this utility model compared with the prior art are as follows:

[0010] 1. Reduced steps: This tool allows keyway machining to be completed in a single setup on a CNC machining center;

[0011] 2. Reducing dimensional defects can eliminate dimensional defects caused by repeated positioning in multiple processes;

[0012] 3. This design concept for cutting tools can be applied to other products. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the device of this utility model;

[0014] Figure 2 This is a schematic diagram of the blade of the device of this utility model;

[0015] Figure 3This is a schematic diagram of the device of this utility model;

[0016] Figure 4 This is a schematic diagram of the device in use.

[0017] Figure 5 Characteristics of the processed products;

[0018] In the diagram: 1. Tool holder, 2. Blade, 3. Clearance, 4. Angle reference plane, 5. Fixture clamping cylinder, 6. Product base, 7. Fixture base, 8. CNC fixture positioning groove. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] In the description of this utility model, it should be understood that the terms "front," "rear," "upper," "lower," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1-5 As shown, this embodiment discloses a cutting tool for a machining center slot, including a tool holder 1. Three stepped inserts 2 are fixedly mounted on the circumferential surface of the tool holder 1. A clearance 3 is provided at the insert connection point. An angle reference surface 4 is provided on the tool holder, located at the lower part of the circumference of the tool holder, below the inserts.

[0022] The cutting tool used in this invention is a stepped carbide cutting tool. The stepped design allows the cutting depth to increase from shallow to deep when milling products, which not only reduces cutting resistance but also ensures stable product dimensions.

[0023] The CNC tool angle reference surface in this utility model serves as a calibration plane when the tool is installed in the tool holder and controls the angular size requirements of the keyway.

[0024] This utility model uses a CNC tool holder: the material requirements are not high, and a carbide insert is welded on it and connected to the tool holder carrier, which can save tool costs;

[0025] The tool clearance position used in this utility model is used to avoid the workpiece positioning pin and other product features.

[0026] The specific operation method for machining with the cutting tool of this utility model is as follows:

[0027] 1. Place the product into the CNC fixture positioning slot of the product base, and use the fixture clamping cylinder on the fixture base to press the product firmly;

[0028] 2. Use a calibration dial indicator to calibrate the CNC tool angle reference plane. This will ensure the CNC tool angle reference plane aligns with the machine tool's X-axis or Y-axis to the desired angle.

[0029] 3. Run the CNC program, complete the processing of other processes first, then automatically call up the plunge milling tool, position it at a fixed angle, and slowly plunge mill the product downwards to complete the keyway structure processing.

[0030] When this utility model tool is used for machining, the spindle does not need to rotate, and the product can be directly milled; the cutting tool adopts a stepped design, which reduces cutting resistance.

Claims

1. A cutting tool for a machining center slot, comprising a tool holder (1), characterized in that, A blade (2) is provided on the circumferential surface of the tool holder (1), a clearance (3) is provided at the blade connection, and an angle reference surface (4) is provided on the tool holder.

2. The cutting tool for a machining center slot according to claim 1, characterized in that, The blade is fixedly connected to the blade holder.

3. The cutting tool for a machining center slot according to claim 1, characterized in that, The blade is a stepped blade.

4. The cutting tool for a machining center slot according to claim 1, characterized in that, There are 3 blades.