Vibration-resistant tool bar
A technology of anti-vibration cutter and cutter bar, applied in the field of boring bar or turning tool bar, can solve the problems of machining hole corrugation, vibration pattern, easy occurrence of large vibration, reduced surface finish, etc., and achieves improved machining accuracy and lower manufacturing cost Low, good anti-seismic effect
Active Publication Date: 2013-08-28
CHONGQING HONGJIANG MACHINERY CO LTD
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AI Technical Summary
Problems solved by technology
Due to the relatively large length and diameter of the tool holder, the overhang length is longer, so the rigidity and strength of the system are reduced
During the processing, under the action of the cutting force, the tool bar is prone to large vibrations, which will reduce the service life of the blade, be easy to wear and damage, and eventually cause ripples and vibration lines on the surface of the processed hole, reduce the surface finish, and the roundness of the hole. The degree is reduced and it is easy to form a tapered hole
Method used
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Embodiment Construction
[0018] Further illustrate structure of the present invention in conjunction with accompanying drawing:
[0019] see figure 1 , the anti-vibration tool holder of the present invention has a unique anti-vibration structure, including first and second plugs 1 and 9, a tool holder body 2, first and second adjusting washers 3 and 10, and 8 shock-absorbing springs 4 , 8 adjusting screws 5, 2 deep groove ball bearings with sealing rings 6, 1 anti-seismic mandrel 7, 8 solder joints 8.
[0020] The interior of the cutter body 2 is a cavity, and the anti-seismic mandrel 7 is installed in the inner cavity of the cutter body. Two deep groove ball bearings 6 with sealing rings are installed respectively from the holes at both ends of the cutter body 2. The two ends of the anti-seismic mandrel 7 The inner hole of the bearing with the deep groove ball bearing with sealing ring adopts interference fit, and the first and second plugs 1 and 9 are installed from the two ends of the tool body 2 ...
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A vibration-resistant tool bar comprises a tool bar body, a vibration-resistant mandrel, deep-groove ball bearings with seal rings, damping springs, regulating bolts, regulating gaskets and plugs. The vibration-resistant mandrel is mounted in an internal cavity of the tool bar body, two ends of the vibration-resistant mandrel are in interference fit with inner holes of the deep-groove ball bearings with the seal rings, and the two plugs are mounted from two end holes of the tool bar body and are respectively in clearance fit with one end face of each deep-groove ball bearing with the seal ring. Besides, the tool bar body is radially provided with a plurality of small holes corresponding to mounting positions of the deep-groove ball bearings with the seal rings, the damping springs and theregulating bolts are sequentially mounted in the small holes, and the inner ends of the damping springs are butted against the outer circles of the deep-groove ball bearings with the seal rings so that the bearings suspend. The vibration-resistant tool bar is simple in structure, convenient in manufacturing, low in manufacturing cost and fine in vibration resistance. Vibration amplitude of the tool bar with higher length-diameter ratio can be reduced greatly.
Description
technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a tool bar (especially a tool bar with a relatively large long diameter) used in mechanical processing, which is mainly applied to a boring tool bar or a turning tool bar. Background technique [0002] In the field of mechanical processing, the length and diameter of the cutter bar used when processing deep holes on lathes or boring machines are generally relatively large (L / D>4). Due to the relatively large length and diameter of the tool holder, the overhang length is longer, so the rigidity and strength of the system are reduced. During the processing, under the action of the cutting force, the tool bar is prone to large vibrations, which will reduce the service life of the blade, be easy to wear and damage, and eventually cause ripples and vibration lines on the surface of the processed hole, reduce the surface finish, and the roundness of the hole. The de...
Claims
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IPC IPC(8): B23B29/00
Inventor 李强
Owner CHONGQING HONGJIANG MACHINERY CO LTD