Summary of the invention
For solving the problems referred to above, the invention discloses and a kind of can be adjusted according to the internal diameter size of different nuts, and within it surface transfer goes out the screw thread transfer device of female thread.
In order to achieve the above object, the present invention provides following technical scheme:
A kind of screw thread transfer device, including transfer pedestal, adjustable nut limits sheet, adjustable plug limits sheet, hold-down devices, pin and rotary apparatus;Transfer pedestal is round pie, and mills out kidney slot, and its vertical section is inverted isosceles trapezoid;And it is provided with female thread;Transfer pedestal is additionally provided with reinforcement;Transfer pedestal is divided equally by kidney slot and reinforcement;It is arcuation that adjustable nut limits sheet, is connected to stop block bottom it;Adjustable plug limits sheet equally in arcuation, is connected to stop block bottom it equally;And the one side that the center of adjustable plug restriction sheet distance transfer pedestal is farther out is provided with concavo-convex screw thread;Stop block is slidably mounted in kidney slot, and the surface of stop block is provided with the restriction screw thread matched with female thread;The rectangular shape of hold-down devices, is fixed on outside transfer pedestal;Pin is installed on the upper end of hold-down devices;Rotary apparatus is connected with pin.
The present invention is a kind of screw thread transfer device, transfer pedestal, adjustable nut limit sheet, adjustable plug restriction sheet, hold-down devices, pin and rotary apparatus and form.
Transfer pedestal is the main body of the present invention, and adjustable nut limits sheet, adjustable plug limits sheet and is arranged on transfer pedestal.Transfer pedestal is flat round pie, kidney slot is milled out by Milling Machining, and it is provided with reinforcement, and vertical interface is be inverted isosceles trapezoid with stop block, adjustable nut restriction sheet to be slided according to the internal diameter of nut to be processed and external diameter size with adjustable plug restriction sheet with the collocation of female kidney slot in kidney slot.Adjustable nut limits sheet and the outer ring of nut is defined, and the internal diameter of nut is defined by the sheet of adjustable plug restriction simultaneously so that the fixation of the surfaces externally and internally of nut is better;The setting of reinforcement when not thickening processing pedestal, can not only strengthen intensity and the rigidity of the present invention, saves material usage, alleviates weight, reduces cost;And it is able to ensure that present invention stability when carrying out female thread transfer.
The center of adjustable plug restriction sheet distance transfer pedestal one side farther out is provided with concavo-convex screw thread, and the inner surface being available for nut transfers out corresponding screw thread.
Hold-down devices is in perpendicular shape, is fixed on the edge of processing pedestal, and the upper end of hold-down devices is provided with pin, and uses rotary apparatus to be connected with pin.Use adjustable nut provided by the invention to limit sheet and nut to be processed is fixed on when processing base central by adjustable plug restriction sheet, the pin being moved its upper end by lower pressure zone is inserted in the inner side of bearing, rotary apparatus is utilized to rotate pin, drive the bearing rotary compressed with pin, relend and help external force to make nut keep fixing so that adjustable plug limits sheet and completes the transfer of female thread at the inner surface of nut.
As preferably, adjustable nut limits the bottom of sheet and adjustable plug restriction sheet and is all fixed with packing ring, and is rotationally connected with stop block by adjusting screw rod.
Stop block is when fixing its position, need it is rotated, also need to after rotating through to adjust adjustable nut limit sheet and adjustable plug limit sheet towards, therefore the bottom that the present invention limits sheet and adjustable plug restriction sheet at adjustable nut is all fixed with packing ring, and it is rotationally connected with stop block by adjusting screw rod, allow to by twist send adjusting screw rod adjustable nut is limited sheet and adjustable plug limit sheet towards being adjusted, then tighten adjusting screw rod and adjustable nut limited sheet and adjustable plug limits sheet and fixes.
As preferably, the diameter of pin is 1.1-1.5 times of the constituted diameter of a circle of end points at the center by kidney slot close transfer pedestal.
The effect of pin be by under press and pin and adjustable plug are limited sheet compress, then pass through the rotary apparatus being connected with pin, and by the fixing nut of external force, drive transfer pedestal to rotate, the transfer of female thread is completed by the relative motion of adjustable plug restriction sheet with nut.Compress owing to pin needs to limit sheet with adjustable plug, it is thus desirable to the diameter of pin is slightly more than adjustable plug limits the constituted diameter of a circle of sheet, consider further that adjustable plug limits sheet and the deformation occurred during side compression in screw thread, therefore it is be advisable near 1.1-1.5 times of the constituted diameter of a circle of end points of transfer base central by kidney slot by the diameter design of pin, and the pin of multiple different-diameter can be designed, be convenient for changing.
As preferably, the quantity of kidney slot and reinforcement is all three, and staggered is uniformly distributed;The trough rim of kidney slot is provided with graduation mark.
If the quantity of kidney slot is chosen as two, necessarily fixation cannot played with kidney slot line on vertical direction;If the quantity of kidney slot selects more than three, although fixed effect is improved, but it is so that adjustable nut limits sheet and adjustable plug and limits sheet slidably range shorter on kidney slot, reduces adjustable nut in the present invention to a certain extent and limit sheet and adjustable plug limits the controllability of sheet.In like manner, if the quantitative design of reinforcement is two, then the transfer substrate at least intensity on some direction is less than normal with rigidity, can cause the present invention in use, it is easy to produce buckle because of suffered unbalanced stress;If the quantity of reinforcement is more than three, although intensity and the rigidity of transfer substrate are improved, but owing to reinforcement occupies more space, the adjustable extent again resulting in adjustable nut restriction sheet and adjustable plug restriction sheet reduces.
Therefore the quantity of kidney slot Yu reinforcement is all set to three be advisable, transfer pedestal is divided equally, enhance the stability of transfer pedestal.
The trough rim of kidney slot is additionally provided with graduation mark, adjustable nut is made to limit the position of sheet and the restriction sheet slip of adjustable plug and apart from visible, it is simple to different adjustable nuts to limit sheet and adjustable plug limits sheet and all slides into apart from transferring the position that base central is identical;When running into the nut of same size after simultaneously facilitating, it is possible to directly adjustable nut is limited sheet and adjustable plug limits after sheet adjusts suitable position, be made directly the processing of female thread, save man-hour.
As preferably, adjustable plug limits sheet as shape memory alloy.
Shape memory alloy is used to limit the material of sheet as adjustable plug so that adjustable plug limits sheet and is obtained in that bigger deformation quantity when nut inner surface carries out screw thread transfer, it is possible to make the female thread better effects if transferred out.
The present invention is compared with existing female thread machining device, limit sheet by adjustable adjustable nut and adjustable plug limits sheet and various sizes of nut is fixed, and the mode by pressure down, rotation so that adjustable plug limits sheet and produces relative motion with nut, carries out female thread transfer.Therefore the invention have the benefit that (1) solves the problem originally causing floor space excessive because needing a large amount of process tool, working environment improves;(2) improve the working (machining) efficiency of female thread;(3) make simple, less costly;(4) suitable in the processing of the workpiece of other class nuts.
Detailed description of the invention
Below with reference to specific embodiment, technical scheme provided by the invention is described in detail, it should be understood that following detailed description of the invention is merely to illustrate the present invention rather than restriction the scope of the present invention.
Being illustrated in figure 1 the structural representation of the present invention, the present invention is a kind of screw thread transfer device, and including transfer pedestal 1, adjustable nut limits sheet 2, adjustable plug limits sheet 3, hold-down devices 4, pin 5 and rotary apparatus 6.
Transfer pedestal 1 is in round pie, and mills out kidney slot 7, and its vertical section is inverted isosceles trapezoid;And it is provided with female thread;Transfer pedestal 1 is additionally provided with reinforcement 8;Transfer pedestal 1 is divided equally by kidney slot 7 and reinforcement 8;The quantity of kidney slot 7 and reinforcement 8 is all three, and staggered is uniformly distributed;The trough rim of kidney slot 7 is provided with graduation mark.
Adjustable nut limits sheet 2 in arcuation, is connected to stop block 9 bottom it;Adjustable plug limits sheet 3 equally in arcuation, for shape memory alloy, is connected to stop block 9 bottom it equally;Adjustable nut limits the bottom of sheet 2 and adjustable plug restriction sheet 3 and is all fixed with packing ring 10, and is rotationally connected with stop block 9 by adjusting screw rod 11.Adjustable plug limits sheet 3 and is provided with concavo-convex screw thread apart from the center one side farther out of transfer pedestal 1;Stop block 9 is slidably mounted in kidney slot 7, and the surface of stop block 9 is provided with the restriction screw thread matched with female thread;
The rectangular shape of hold-down devices 4, is fixed on outside transfer pedestal 1.
Pin 5 is installed on the upper end of hold-down devices 4;The diameter of pin 5 is 1.2 times of the constituted diameter of a circle of end points at the center by the close transfer pedestal 1 of kidney slot 7.
Rotary apparatus 6 is connected with pin 5.
Before using the present invention that nut is processed, it is necessary to hold-down devices 4 is adjusted to the highest;After adjustment completes, first pass through stop block 9 and adjustable plug restriction sheet 3 is slid near one section of pedestal 1 center of transfer along kidney slot 7, adjustable nut is limited sheet 2 and slides into the edge of transfer pedestal 1, nut to be processed is placed on the center of transfer pedestal 1 so that adjustable plug limits within the internal diameter that sheet 3 is positioned at nut;Sliding in and out adjustable plug afterwards and limit sheet 3, slid inward adjustable nut limits sheet 2, and keeps scale residing for the stop block 9 on three kidney slots 7 consistent, completes to treat the fixing of nut processing.
Internal diameter according to nut to be processed selects suitable pin 5, regulate hold-down devices 4, pin 5 is made to move down, adjustable plug is made to limit the inner surface of sheet 3 clamp nut, subsequent start-up rotary apparatus 6, make nut keep fixing by external force so that nut and adjustable plug limit sheet 3 and produce relative motion, complete the transfer of female thread simultaneously.
Finally it should be noted that, above example is only in order to illustrate technical scheme and non-limiting technical scheme, it will be understood by those within the art that, technical scheme is modified or equivalent replacement by those, without deviating from objective and the scope of the technical program, all should be encompassed in the middle of scope of the presently claimed invention.