A special integral turning tool for turning outer circle and end face of sealing rubber parts
A technology of sealing rubber and turning the outer circle, which is applied in the direction of tools for lathes, turning equipment, accessories of tool holders, etc., can solve the problem that the surface roughness and dimensional accuracy of seals cannot meet the design requirements, the heat dissipation of rubber materials is poor, Turning tool wear and other problems, to achieve the effect of reducing the number and time of sharpening, improving sharpness, and improving processing quality
Active Publication Date: 2019-01-04
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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Problems solved by technology
[0006] Based on various considerations, I chose to process small rotary seals on my own. Due to the poor heat dissipation of rubber materials, insufficient rigidity and strong toughness, the heat generated by friction during processing is concentrated on the turning tool body and materials, resulting in The general-purpose turning tool is worn, and the surface roughness and dimensional accuracy of the seal cannot meet the design requirements
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[0023] Attached below Figure 1~4 The present invention is described in further detail:
[0024] (1) press figure 1 Carry out overall special turning tool design;
[0025] (2) at figure 2 The "K" between the main cutting edge and the auxiliary cutting edge is hollowed out, that is, the through hole K is opened to increase the surface area of the cutter body, thereby increasing the heat dissipation area of the cutter body and reducing the influence of cutting heat on the accuracy of the workpiece during processing. Improve the machining accuracy of the workpiece, and facilitate the removal of chips from the cavity;
[0026] (3) Press image 3 Section A-A shows: design the main cutting edge with a rake angle of 17° and a rear angle structure of 7° to 8° to increase the sharpness of the main cutting edge of the tool, thereby improving the surface roughness of the workpiece;
[0027] (4) press Figure 4 As shown in section B-B: the rake angle of the minor cutting edge i...
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The invention discloses an integrated turning tool special for turning the external circle and the end face of a sealing rubber part. A penetrating hole K is formed at the position, between a main cutting edge and an auxiliary cutting edge, of a tool bit, the main cutting edge is of the structure with a front angle of 17 degrees and a rear angle of 7-8 degrees, and the auxiliary cutting edge is of the structure with a front angle of 17 degrees and a rear angle of 7-8 degrees. The heat radiation condition of the turning tool is improved, the influence and abrasion of cutting heat on the surface toughness of the part during machining are reduced, the durability of the turning tool is improved, and therefore the quality of the part is guaranteed.
Description
technical field [0001] The invention relates to a special integrated turning tool for the outer circle and end face of non-standard rubber seals used in hydraulic and pneumatic test equipment for aviation products. Background technique [0002] At present, engine nozzles, spray booms, and casing test fixtures need to use a large number of rubber sealing components, which come from three sources: [0003] (1) Purchasing according to the standard; [0004] (2) Professional manufacturers cast special-shaped seals; [0005] (3) Based on its own processing of small rotating seals. [0006] Based on various considerations, I chose to process small rotary seals on my own. Due to the poor heat dissipation of rubber materials, insufficient rigidity and strong toughness, the heat generated by friction during processing is concentrated on the turning tool body and materials, resulting in The general-purpose turning tool is worn, and the surface roughness and dimensional accuracy of ...
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IPC IPC(8): B23B27/00
CPCB23B27/005
Inventor 韩前宏刘军周琦浩
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD