A kind of Novel threaded and processing methodDenomination of invention: a kind of Novel threaded and processing method
Technical field
[0001] the present invention relates to fastening field, specifically a kind of Novel threaded and processing methods.
Background technique
[0002] many fields are needed using fastener, from machinery, electronics, to agricultural, aviation etc. is all from not Jian fastener, fastener in use, can generate loosening due to vibration etc., influence using effect so that fastening failure, even cause major accident, therefore people are trying every possible means always the more strong and reliable fastener of design for these years, and fastener is mainly made of screw thread, it is therefore desirable to more safe and reliable screw thread.
Technical problem
[0003] the purpose of the invention is to provide a kind of Novel threaded and devices, specifically there is the screw thread of step in the side of screw thread, it can prevent fastener from loosening, and bolt screw equipped with the Novel threaded etc., provide processing method with inch.
[0004] present invention to achieve the above object, it is achieved through the following technical solutions: a kind of Novel threaded, there is step in the side of screw thread, stress surface of its step in screw threads for fastening, its step opens up Jian from thread root to threaded top, step is in pawl shape, and step is all or part of between thread root and threaded top, is mutually paired the screw thread used and all sets the checknut.
[0005] screw thread can be understood as along a right-angle side of right angled triangle being axis rotation, what the bevel edge winding of right angled triangle was formed on the cylinder, hypotenuse is smooth, it is also smooth for winding the screw thread come, hypotenuse is if it is step-like, it is also step-like for winding the screw thread come, smooth inclined-plane is easy to skid, there is the inclined-plane of step to be not easy to skid, just as there is one reason of slide of spiraling of the stair of step to spiral compared to not step, therefore in the side of screw thread, setting step can prevent screw thread from skidding, and then play the role of preventing from loosening；Screw thread fastener it is specifically used in, bear pressure in only one general main direction, this pressure is acted on fastener by the object fastened and is generated, than the nut if any externally threaded bolt and internal screw thread, after tightening the screw thread stress of bolt be contacted with nut towards by fastening object while, and the screw thread stress of nut be with the thread contact of bolt backwards to by fastener while, the two is contrary, reaction force each other, step, Ke Yizeng are set in the two such each other face of reaction forceAdd its mutual frictional force, it prevents from loosening, the process of fastening is close-fitting after first loosening between screw thread, it is crossed at the top of step between the inch time screw thread of close-fitting because of elastic deformation, and because elastic deformation is clamped on the bottom of the steps, so this screw thread is adapted to mate with identical screw thread and intermeshes use, the position of two interaction forces contact is such as set, the effect of this screw thread can be more played；The setting of step generally opens up Jian from the root of screw thread to threaded top, i.e. with screwed ring around axis radially outward exhibition Jian, Jian is opened up with straight line or gradually Jian line opens up Jian, the effect for preferably preventing from loosening to enable screw thread to have, setting screw thread step is pawl shape, it is acute angle that i.e. step, which has a face and flank inclination, it perpendicular to flank or is slightly tilted with another face, interconnection or vacant certain distance between step, and pawl step is also provided in matching used screw thread, the two pawl is contrary, it intermeshes, in this way if this screw thread is arranged on matched bolt and nut, after bolt and nut fasten, screw thread between bolt and nut is compacted, step on screw thread intermeshes because pressure is different, prevention is slided between the two It falls back；Because the top of some screw threads is than relatively thin, if cross section is triangle thread, the a part of step between from thread root to top can be only set, and the inch for being positioned only at a part waits step and is higher than thread surface, as triangle thread is provided only on one section close to thread root；Novel threaded of the invention have step because screw thread be all it is circular in the shape of a spiral, step can be set to close to bottom of thread size it is small, close to threaded top size it is big, can also from thread root to top one size.
[0006] screw thread being arranged using same principle, it can be external screw thread or internal screw thread, it can apply in tapping screw, its screw thread is equipped with step from thread root at least one side of threaded top side, step is pawl shape, entered in this way in tapping screw by external force after being drilled into part, blocks the pawl of tapping screw screw thread due to being drilled into the elastic deformation of part, reverse it can not.
[0007] a kind of bolt pair, including screw bolt and nut, bolt sets external screw thread, nut sets internal screw thread, the two is used with platform, the screw thread of screw bolt and nut is designed with step in the side of fastening stress, step is pawl shape, the step of the two is contrary to engage shape each other, the side of Step Coverage screw bolt and nut stress, orchid is tried in nut fastening on one side, flange fastening face sets step, step is pawl shape, in nut, flange is set, the inch of fastening waits flange close to by fastener, setting fastens each section connection more in this way, it prevents from loosening.
[0008] step corresponding with fastener contact surface can be fixedly installed in the present invention on by fastener, step is designed with by fastener and fastener, the step of the two intermeshes, by the step of fastener using welding or the method cast and by fastener one.[0009] the present invention also provides multiple processing methods, since the side of screw thread is arranged in the step of screw thread of the present invention, it cannot be processed with existing rolling depression method, the screw thread tiny for size can be using the processing such as laser or ultrasonic wave, multiple laser aids are set, efficiency can be improved with inch processing, it can be using machine cut or in the methods of screw thread side rolling processing for Large-scale thread；Such as first prefabricated screw thread, step is stamped out on screw thread in a manner of punching press, every punching press once rotates an angle afterwards and continues punching press, multiple stamping devices can be arranged around screw thread with inch, stamping device not only is set in a screw thread circumference, it can also be arranged along the multiple circumference stage constructions of screw thread, further increase working efficiency, cutting can be used in same method, multiple cutting apparatus are set around screw thread, it improves efficiency, another processing method is can be rolled with umbrella tooth hobboing cutter along screw thread side, step is rolled out in thread surface, multiple hobboing cutters are set with inch to use with inch to improve efficiency, in addition umbrella pulley can be arranged in umbrella tooth hobboing cutter, umbrella tooth hobboing cutter and umbrella pulley are fixed in base rod, umbrella tooth hobboing cutter and umbrella pulley room have gap, Screw thread is inserted into gap, umbrella pulley limits screw thread, umbrella pulley and umbrella tooth hobboing cutter clamp screw thread and around threads turns, step is processed in thread surface, it is adjusted according to screwed ring around diameter and uses different taper hobboing cutters, umbrella tooth hobboing cutter and umbrella pulley room distance are adjusted according to the thickness of thread, this method and device both can be with threadings or with machining internal thread.
[0010] Novel threaded of the invention can also be using the method production of casting, one method is that multiple product units are arranged in a mold, the multiple products of one-pass molding, secondly method is the method using division processing after casting, first casting out a length is multiple semi-finished product containing screw product length of the present invention, then segmentation reprocessing finishing molding, such as processing contains the bolt of screw thread of the present invention, first cast out the long bolt for containing screw thread of the present invention, segmentation screw rod post-processing bolt head forms, the inch of casting is waited can there are also multiple bolt heads on long bolt, bolt head connects another bolt tail, divide molding after casting, and process the nut for containing screw thread of the present invention, the long cylinder for containing internal screw thread of the present invention can also first be cast out, afterwards Segmentation shaping forms, because the method is the step that casting and forming can be used for being recessed or protruding thread surface, this method also can be applied to process other similar device.
[0011] above-mentioned each processing method is also applied for other screw thread process, can be used in combination with existing machinery processing unit (plant).
[0012] face of above-mentioned step can be plane, can be arcwall face.
[0013] the beneficial effects of the present invention are: had the advantages that using Novel threaded of the present invention and device convenient and reliable, can be easily used cooperatively with existing various fastening methods and device, and develop out a variety of clamp devicesSolution to the problem
Advantageous effect of the invention
To the brief description of accompanying drawing
Detailed description of the invention
[0014] Fig. 1 is with a kind of trapezoidal thread schematic diagram of the invention；
[0015] Fig. 2 is a kind of processing unit (plant) schematic diagram of the invention；
It [0016] 1 is threaded top in figure, 2 be thread root, and 3 be step inclined-plane, and 4 face directly for step, and 5 be umbrella tooth hobboing cutter
, 6 be hobboing cutter, and 7 be umbrella pulley, and 8 be base rod.
Specific embodiment
[0017] combined with specific embodiments below, the present invention is further explained, Fig. 1 is a kind of trapezoidal thread schematic diagram of the invention, 1 is threaded top in figure, and 2 be thread root, and 3 be step inclined-plane, 4 face directly for step, nut and bolt with such trapezoidal thread are used cooperatively, and concrete operating principle has included being not repeated in this specification.
[0018] Fig. 2 is the device of the invention schematic diagram, 1 is threaded top in figure, and 2 be thread root, and 5 be umbrella tooth hobboing cutter, 6 be hobboing cutter, 7 be umbrella pulley, sets bearing in umbrella tooth hobboing cutter 5, sets bearing in umbrella pulley 7, umbrella tooth hobboing cutter 5 and umbrella pulley 7 are fixed in base rod 8, work inch, close to screw thread, is relatively rotated, hobboing cutter 6 rolls step between threaded top 1 and thread root 2 with base rod 8 with screw thread.
[0019] only by selected embodiment, the present invention is described, but it will be apparent that the above embodiments are for illustrating rather than for limiting the present invention.