Coaxial multi-blade adjustable combined tool with large length-diameter ratio

Abstract

The utility model discloses a large-length-diameter-ratio coaxial multi-edge adjustable combined cutter which comprises a cutter bar body, a double-guide-rail groove or a multi-guide-rail groove is formed in the head of the cutter bar body, a cutter body is arranged in each guide rail groove, and a blade is arranged at the end, extending out of the guide rail groove, of each cutter body. According to the utility model, the problem of special-shaped deep cavity or ultra-deep appearance due to the characteristic of large length-diameter ratio in the machining process is solved, double cutting edges or multiple cutting edges can be arranged on the cutter bar according to different characteristics of workpieces, the multiple cutting edges participate in machining at the same time, the upper bottom surface and the lower bottom surface of an inner cavity can be machined, different combined machining methods aiming at different characteristics are realized, and the machining efficiency is improved. The machining efficiency is improved, the machining cost is reduced, and the machining period is shortened.

Description

Technical Field

[0001] The utility model relates to a cutting tool, in particular to a coaxial multi-edge adjustable combined cutting tool with a large length-diameter ratio, which is a cutting tool used for machining workpieces with deep inner holes, special-shaped cavities or outer contour length-diameter ratios greater than ten in boring, shaping, milling and other processes. Background Art

[0002] At present, the machining of inner and outer cavity contours with a large length-diameter ratio has always been a machining problem. In the machining process, boring, shaping or milling is usually adopted. Due to the limitations of some products themselves, extended anti-vibration cutting tools are generally used. Especially for the machining of special-shaped cavities, even special anti-vibration cutting tools need to be customized. Therefore, the machining cost is high and the machining cycle is long. Therefore, it is necessary to design a low-cost general-purpose combined cutting tool to meet the production and machining needs. Summary of the Invention

[0003] The coaxial multi-edge adjustable combined cutting tool with a large length-diameter ratio of the utility model adopts different combinations of general cutting tools and tool shanks with different diameters for different products to solve the machining problems of deep cavities or outer shape features with a large length-diameter ratio.

[0004] The technical solution adopted by the utility model is: a coaxial multi-edge adjustable combined cutting tool with a large length-diameter ratio, including a tool shank body. Double guide grooves or multiple guide grooves are arranged at the head of the tool shank body. A tool body is arranged in each guide groove, and a cutting blade is arranged at the end of each tool body extending out of the guide groove.

[0005] A dial is arranged on the side of the head of the tool shank body, and the tool body located in the guide groove is connected with the dial through a connecting plate.

[0006] The tool body is fixed in the guide groove by a fastening screw at the head of the tool shank body.

[0007] The tool shank body is a circular main body made of alloy steel.

[0008] The beneficial effects of the utility model are: realizing different combined machining methods for different features, and solving the problems of special-shaped deep cavities or ultra-deep outer shapes in the machining process of features with a large length-diameter ratio; according to different features of the workpiece, double cutting edges or multiple cutting edges can be set on the tool shank, and multiple edges participate in machining at the same time, and the upper and lower bottom surfaces of the inner cavity can be machined, improving the machining efficiency. The cost of machining the inner and outer cavity contours with a large length-diameter ratio is low, the machining cycle is short, and the adjustment is simple. Description of the Drawings

[0009] Figure 1 It is a schematic structural diagram of one side of the utility model;

[0010] Figure 2Structural schematic diagram of the other side of the present utility model;

[0011] Figure 3 Structural diagram of one side of the positioning part of the present utility model;

[0012] Figure 4 Structural diagram of the other side of the positioning part of the present utility model.

[0013] In the figure, 1 - clamping part of the machine tool tool shank, 2 - tool bar body, 3 - tool body, 4 - guide rail groove, 5 - reinforcing rib, 6 - adjustment knob / dial, 7 - dial fixing plate, 8 - connecting plate, 9 - fastening nut for dial fixing plate, 10 - fastening screw for dial fixing plate, 11 - fastening screw for tool body, 12 - fixing screw for connecting plate and tool body, 13 - fixing position thread for dial fixing plate. Specific implementation manner

[0014] The following specifically describes a large aspect ratio coaxial multi-edge adjustable combined tool of the present utility model with reference to the accompanying drawings.

[0015] A large aspect ratio coaxial multi-edge adjustable combined tool of the present utility model, see Figures 1 to 2 , including a tool bar body 2. The tool bar body 2 adopts a circular main body, and the tool bar is clamped by a machine tool tool shank. The tool bar is made of alloy steel by self-making, which is beneficial to deep cavity or deep contour machining. A guide rail groove 4 is provided at the head of the tool bar body 2. The guide rail groove 4 can be a double guide rail groove or a multi-guide rail groove. A tool body 3 is placed in each guide rail groove 4, and a blade is installed at the end of each tool body 3 extending out of the guide rail groove 4. The guide rail groove 4 is closely matched with the tool body 3, and the size of the guide rail groove 4 is adjusted according to the characteristics of the product and the differences of the tool body 2 during manufacturing. The types of tools selected for the present utility model are diverse, and general machining tools can be installed on the tool bar body 2, such as boring tools, grooving tools, threading tools, etc. Different tool bars and tool combinations can be adopted for different products, with accurate and convenient positioning. Different combination methods change according to different machining feature structures.

[0016] An adjustment knob / dial 6 is provided on the side of the head of the tool bar body 2 of the present utility model. The tool body 3 located in the guide rail groove 4 is connected to the adjustment knob / dial 6 through a connecting plate 8. The tool body 3 adopts a radially adjustable method. By rotating the adjustment knob / dial 6, pushing and pulling the connecting plate 8 drives the tool body 3 to move forward and backward along the guide rail groove 4 simultaneously. See Figure 3 and Figure 4, in this utility model, two tool bodies 3 are fixed together by a connecting plate 8 and a connecting plate tool body fixing screw 12. The connecting plate 8 is threadedly connected with an adjusting knob / dial 6. The adjusting knob / dial 6 is fixed on the side of the tool bar body 2 through a dial fixing plate 7, a dial fixing plate fixing nut 9 and a dial fixing plate fastening screw 10. The dial fixing plate 7 is connected to the head of the tool bar body 2 through a dial fixing plate fixing position thread 13. In the thread connection state of the adjusting knob / dial 6, when the adjusting knob / dial 6 rotates one week, the connecting plate 8 moves one pitch accordingly, and the tool body 3 moves with the connecting plate 8, forming different tool rotation diameters, and different rotation diameters can be adjusted according to different machining features. The tool body 3 of this utility model is placed in the guide rail groove 4. After rotating the adjusting knob / dial 6 to adjust the tool body 3 to a suitable rotation diameter, tighten the tool body fastening screw 11 to complete the assembly and debugging of this coaxial multi-edge adjustable combined tool. The modified combined tool has good clamping rigidity, accurate positioning and is convenient.

[0017] This utility model also has a reinforcing rib 5 provided on the tool bar body 2 at the position of the tool body fastening screw 11 to strengthen the strength of the tool bar body 2 at this place.

[0018] When this utility model is used, (1). The sizes of the machine tool tool holder clamping part 1, the tool bar body 2, the tool body 3, the guide rail groove 4, the connecting plate 8 and the tool body fastening screw 11 should be determined according to the shape and structure of the workpiece. (2). When using for the first time, clean the tool holder clamping part, install it on the machine tool tool holder and adjust and align it. (3). Install the tool body 3 into the guide rail groove 4, and connect and fix the end of the tool to the adjusting knob / dial 6 through the connecting plate 8. (4). By rotating the adjusting knob / dial 6, adjust the turning radius of the cutting edge to meet the requirements before machining.

Claims

1. A coaxial multi-edge adjustable combined tool with a large length-diameter ratio, including a tool shank body, characterized in that A double guide groove or multiple guide grooves are provided at the head of the tool shank body, and a tool body is arranged in each guide groove, and a blade is provided at the end of each tool body extending out of the guide groove.

2. The large aspect ratio coaxial multi-edge adjustable combined tool according to claim 1, characterized in that A dial is provided on the side surface of the head of the tool shank body, and the tool body located in the guide groove is connected to the dial through a connecting plate.

3. The adjustable combined tool with multiple coaxial blades having a large length-diameter ratio according to claim 1, characterized in that The tool body is fixed in the guide groove by a fastening screw at the head of the tool shank body.

4. The adjustable combined tool with multiple blades and coaxial structure according to claim 1, wherein The tool shank body is a circular main body and is made of alloy steel.

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