The 3 labour that in gear-box of the boring on lathe aperture fastens clamping apparatus

Summary: ? Mast accurate core of admirable of Hu of Bin of Kou extensive straight Lu knocks at Na Biao Gu Ga of A of 8 eyebrow core sweeps past ā of any of several hot spice plants of plum of duckweed basketry A Chinese-style unlined garment Piao of rinse of the melon that protect  takes an examination of tip of dust  of dark blue of Wei of  the Huaihe River to fall spring of の of Yu of a surname  Zhui of  of Xia Yong と , this transmission is the 4 photographs that are 90 ° by phasic difference orgnaization of side-by-side connecting rod and one-way the mechanical that surmounts clutch composition is small-sized infinitely variable speeds implement. Casing is this infinitely variable speeds implement a important part, thirdly the treatment dimension precision that aperture fastens and positional precision will matter to infinitely variable speeds directly implement life. When 3 aperture that process gear-box form in batch are fastened, use on horizontal boring machine normally bore hole craft will solve. But because be mixed by the limitation of the element such as equipment condition,affect, bore hole to assure very hard to machine quality to casing component on common lathe. For this, developed a kind of lathe to bore hole clamping apparatus, this clamping apparatus makes workpiece is installed, be versed in in 3 through index mechanism on 3 aperture that machine casing are, the treatment precision that made sure gear-box aperture is fastened thereby and aperture fasten the parallelism between. Via be being used actually, the effect quite beautiful, solved manufacturing difficult problem already, improved efficiency again. Graph the material of 1 technology requirement and casing of technique infinitely variable speeds is process chart of treatment of department of 1 casing aperture ZL104, semifinished product uses nicety to cast. Casing component process chart is shown 1 times like the graph, this working procedure machines O2 of casing aperture O1, aperture and aperture O3, treatment accuracy class all is IT7 class, surface roughness value is Ra1.

6, 3 aperture parallelism is 0.

05, the positional dimension between casing aperture department see a picture 1. Casing is fastened except aperture outside, each surface already all machined the others. When casing is machined, use located at 6 o'clock method, a face restricts 3 freedom to spend for face of main fixed position, b face restricts 2 freedom to spend for face of oriented fixed position, fixed position face is pushed to restrict a freedom to spend till C face. Clamp means uses a hand to move clamp, clamping force direction points to A of face of main fixed position. The treatment method that aperture fastens is respectively, aperture O1 and: of aperture O2(Ø20H7) craft? Does Xin live does  admirable live does  ass live? Does Zhu 3(Ø40Js7) machine methodological: ? ┛ lives  admirable lives  "  ass lives structure of?2 clamping apparatus reachs use method to bore hole the guiding ideology that clamping apparatus designs is, use working procedure to center a principle, to casing component on common lathe 3 aperture machine fixed position to finish, reduced fixed position error, ensure casing aperture fastens treatment quality. If the clamping apparatus structure that develops according to should designing train of thought pursues 2 are shown. Graph structure of 2 boring clamping apparatus this boring clamping apparatus basically is comprised by two much, the first part is clamping apparatus body, through transferring dish carry a solid couplet with lathe main shaft. The 2nd part is index mechanism, casing is with locating means is installed at 6 o'clock on index mechanism, with clamp of bolt of the 6 horn inside 4 M12. The O of centre of turning circle of index mechanism and clamping apparatus body O of centre of turning circle not coincide, index mechanism slants buy 49.

872mm is sold with cylinder of an a flight of stairs and place specific photograph connection, index mechanism can circle O to turn on clamping apparatus body, and can use bolt of chamfer of 3 T form screw. Index mechanism and clamping apparatus body are prejudicial 49.

872mm, its reason is bore hole on lathe, by treatment aperture centre of turning circle must be mixed coincide of O of main shaft centre of turning circle. When a Kong Jia of casing labour ends, casing and index mechanism circle O together ' rotational, make the center of aperture of another semifinished product and coincide of O of main shaft centre of turning circle. Casing is in in clamping apparatus after correct fixed position and clamp, o ' it is casing the equidistant center of 3 aperture, o2 of aperture O1, aperture and aperture O3 are to the distance of O: D= √ =49.

872mm(90)2+(43)222 slants buy is 49.

872mm can make through graduation 3 aperture fasten casing to be able to be machined not only, and the dimension of mutual level position that made sure 3 aperture are fastened, perpendicular position dimension and parallelism requirement. Bore hole the use method of clamping apparatus is as follows: After semifinished product casing presses casing of the gearshift that hold clip to located the principle locates at 6 o'clock, with 4 inside clamp of 6 horn bolt, if pursue,2 are shown. Is the treatment working procedure that machines O3 of aperture O3 aperture: ? ┛ ?Ø36) → bores hole (Ø39.

Bore with a reamer of 8H8) → float (Ø40Js7) . Dislocation graduation is loose bolt of chamfer of 3 3 form, pull out positioner, index mechanism and casing circle clamping apparatus O together ' rotational. Turn to O of clamping apparatus center when aperture O1, positioner enters fixed position hole automatically, make index mechanism locates, reoccupy tool screws bolt of chamfer of 3 T form. Is the treatment working procedure that machines O1 of aperture O1 aperture: ? Xin?Ø16) → bores hole (Ø19.

Aperture of 8H8) → bore with a reamer (Ø20H7) . Again dislocation graduation is loose bolt of chamfer of 3 T form, pull out positioner, index mechanism and casing circle O of clamping apparatus body again together ' rotational. Turn to O of clamping apparatus center when aperture O1, positioner makes index mechanism locates, screw bolt of chamfer of 3 T form. Is the treatment working procedure that machines O2 of aperture O2 aperture: ? Xin?Ø16) → bores hole (Ø19.

Aperture of 8H8) → bore with a reamer (Ø20H7) . Debus casing is loose 4 inside 6 horn bolt, the casing debus that treatment ends, load casing semifinished product again, repeat afore-mentioned processes. As a result of index mechanism center of body of opposite clamping apparatus slants buy, index mechanism itself asymmetry, should bore hole clamping apparatus design should have balance measure, eliminate circumgyrate lopsided phenomenon, in order to reduce the effect that the adverse element such as vibration machines quality to casing. Deserve to weigh an I adjustment clamping apparatus (include index mechanism) balance of O of centre of turning circle of opposite main shaft, deserve to weigh a # adjustment index mechanism opposite O ' evenly. The effect that the hand plays positioner is the precision of graduation fixed position that makes sure casing aperture fastens treatment. This boring clamping apparatus installs 3 last words to be used on CA6140 common lathe old, make clear through actual application, the 3 labour of the design gear-box body bores hole clamping apparatus can satisfy production to use a requirement, achieve expect design end, already obtained idealer result. Especially after casing locates, the dimension precision that finish machining used craft of aperture of bore with a reamer to assure to machine aperture not only and the requirement that machine exterior quality, and pass dislocation of clamping apparatus index mechanism, the positional dimension that ensures 3 aperture are fastened and parallelism ask, quality of gear-box body treatment is consequently better, satisfied a product to use a requirement. 3 labour bore hole clamping apparatus structure is not complex, clamping apparatus body and index mechanism material all are used cast-iron (HT200) , make convenient. The parallel aperture department that uses this clamping apparatus to locate in common lathe batch machines small-sized gearshift casing last time is a kind of when assure to machine quality effective method. CNC Milling