CN200984653Y

CN200984653Y - Spherical counterbore tool for processing integral differential mechanism casing spherical surface

Info

Publication number: CN200984653Y
Application number: CN 200620095150
Authority: CN
Inventors: 黄平辉; 唐思成; 揭钢; 敖辉光
Original assignee: Jiangxi Jiangling Chassis Co Ltd
Current assignee: Jiangxi Jiangling Chassis Co Ltd
Priority date: 2006-01-17
Filing date: 2006-01-17
Publication date: 2007-12-05
Anticipated expiration: 2016-01-17

Abstract

The utility model belongs to the machining equipment field and relates to a self-contained spherical machining cutter of a differential gear shell. The spherical counter-sink tool has a cylinder shape and the outer round surface cooperates with the hole clearance of a clamp cutter seat; two end surfaces are welded with two blocks of YG 6 hard alloy respectively which are about three to four millimeter thick; the spherical counter-sink clamp comprises: a clamp unit, a fixed head, a special movable tipped lathe center, a locating device, a cutter seat and a clamping mechanism; the clamp is provided with a cutter seat, which compared with profile modeling machining tools, has good rigidity, big machining and feeding volume, high production efficiency, less equipment investment and lower machining cost. The utility model is improved on the basis of a common lathe and machines the sphere of a differential gear shell by a formed spherical cutter, which not only saves cost, meets the demand of batch production, but also can ensure the quality.

Description

Piece differential cage sphere processing sphere countersink tool

Technical field

The utility model belongs to the machining equipment field, relates to a kind of piece differential cage sphere process tool.

Background technology

The general employing of piece differential cage sphere processing carried out copying at engine lathe, domestic similar back axle factory all adopts sphere processing special plane or machining center or copying lathe processing, also there is employing on engine lathe, to use the sphere-forming cutter, the processing spherical surface of differential mechanism casing, but because of there are some shortcomings in it, as: because the cutter poor rigidity, it is poor that the slow and surface quality of process velocity reaches, and therefore do not reach the drawing requirement.And the processing of the work in-process heart, though the good investment of quality is too big, this machining center is wanted 500 to 6,000,000 yuan, the processing cost height, and also the cutter expense is big, and a blade is all wanted more than 2000 yuan.Process on the sphere special plane, invest also greatlyyer, general homemade special plane is wanted ten thousand yuan of 40-50, and processing cost is also higher relatively.

Summary of the invention

The purpose of this utility model provides a kind of sphere countersink tool of processing sphere on engine lathe.

The utility model is achieved in that piece differential cage sphere processing sphere countersink tool is that profile is a cylinder, and its outer round surface cooperates with anchor clamps tool rest interporal lacuna; The two ends end face respectively welds the YG6 carbide alloy of 2 3～4 millimeters thick, and its arc radius is identical with spherical radius that workpiece is processed; The Tool in Cutting sword is that 0 degree, relief angle are 9～12 degree by periphery center, anterior angle; Aperture, cutter two ends is that 7 degree taper seats, interstitial hole are that square hole is to transmit the cutting moment of torque.

The sphere ream anchor clamps that match with described piece differential cage sphere processing sphere countersink tool comprise: clamp body, fixing top are fixed, special-purpose rolling center, positioner, tool rest and clamp mechanism; Sphere ream anchor clamps are by being fixed on alignment pin of clamp body and middle carriage upper tool post hole location, and three tommyhead bolts are fixed on the lathe middle carriage; Clamp body is provided with tool rest on the centre, and button tool is packed in the tool rest hole, and left and right special-purpose rolling center and the stationary center of being respectively, stationary center are packed in the tapered bore of machine tool spindle, and special-purpose rolling center is packed in the tailstock tool taper hole; The stationary center square toes play the transmission torsional interaction, and the conical surface and the rolling center front end conical surface contact with the cutter two aperture conical surfaces, axial location; Middle two location-plates and differential carrier Flange Plane location, and be provided with two chamfered edge pins and a differential carrier flange symmetrical holes location; Clamp body rear end alignment pin and location, differential carrier hole, the clamp body front end is equipped with the clamp mechanism clamping work pieces.

The utility model is owing to be provided with tool rest than copying cutter good rigidly at anchor clamps, and the processing amount of feeding is big, the production efficiency height, and the equipment less investment, processing cost is low.On engine lathe, transform, with making shape ball cutter processing spherical surface of differential mechanism casing economy, and can satisfy batch process and ensure the quality of products.

Description of drawings

Fig. 1, the utility model cutter front view structural representation.

Fig. 2, the utility model cutter left view structural representation.

Fig. 3, the utility model anchor clamps front view structural representation.

Fig. 4, the utility model anchor clamps vertical view structural representation.

Fig. 5 is an A-A structural representation among Fig. 3.

Fig. 6 is a B-B structural representation among Fig. 4.

Fig. 7 is a C-C part sectioned view among Fig. 1.

Fig. 8 is a D-D structure rotation schematic diagram among Fig. 1.

E among Fig. 1 is that the transformation of the way of E325A (YG6) model blade forms.

The specific embodiment

Embodiment 1: with picking-up vehicle rear axle differential processing sphere is example, for the processing spherical diameter is 94 ₀ ^{+ 0.1}, surface roughness value is 3.2.

Described sphere countersink tool 6 is a cylinder for profile, and diameter is 43 _-0.02 ^-0.009, its outer round surface cooperates with anchor clamps tool rest interporal lacuna; The two ends end face respectively welds the YG6 carbide alloy of 2 3～4 millimeters thick, and its arc radius and workpiece are processed spherical radius R47 _{+ 0.025} ^{+ 0.04}The Tool in Cutting sword is that 0 degree, relief angle are 10 degree by periphery center, anterior angle; Aperture, cutter two ends is that 7 degree taper seats, interstitial hole are that square hole is to transmit the cutting moment of torque; The cutter length overall is 75.

With the sphere ream anchor clamps that described piece differential cage sphere processing sphere countersink tool matches, it is characterized in that: described sphere ream anchor clamps comprise: clamp body 1, fixing top are fixed 2, special-purpose rolling center 3, positioner 4, tool rest 5 and clamp mechanism 12; Sphere ream anchor clamps are by being fixed on alignment pin of clamp body 10 and location, middle carriage upper tool post hole, and three tommyhead bolts 11 are fixed on the lathe middle carriage; Tool rest 5 is set on the clamp body centre, and button tool 6 is packed in tool rest 5 holes, and left and right special-purpose rolling center 3 and the stationary center 2 of being respectively, stationary center 2 are packed in the tapered bore of machine tool spindle, and special-purpose rolling center 3 is packed in the tailstock tool taper hole; The conical surface and 6 liang of aperture conical surfaces of the rolling center 3 front end conical surfaces and cutter contact, axial location; Middle two location-plates 7 and differential carrier Flange Plane location, and be provided with 2 symmetrical holes location of two chamfered edge pins 8 and differential carrier flange; Clamp body rear end alignment pin 9 and location, differential carrier hole, the clamp body front end is equipped with clamp mechanism 12 clamping work pieces.

Clamping pick up differential carrier starts lathe then on anchor clamps, and rotating speed is 380 rev/mins.Rotate handwheel, workpiece is moved to the left carries out sphere processing, note seeing the dial gauge pointer, after putting in place, feed-disabling; The backward rotation handwheel moves right workpiece and carries out sphere processing, notes seeing the dial gauge pointer, and after putting in place, feed-disabling.Hand rotates the tailstock handwheel, and rolling center is unclamped, and pulls down workpiece then.With the dial gauge sampling observation spherical diameter of processing.Check two spheres to planetary gear hole and differential carrier journal shaft line position degree with appliance special for detecting.

Claims

1, a kind of piece differential cage sphere processing sphere countersink tool, it is characterized in that: described sphere countersink tool is that profile is a cylinder, and its outer round surface cooperates with anchor clamps tool rest interporal lacuna; The two ends end face respectively welds the YG6 carbide alloy of 2 3～4 millimeters thick, and its arc radius is identical with spherical radius that workpiece is processed; The Tool in Cutting sword is that 0 degree, relief angle are 9～12 degree by periphery center, anterior angle; Aperture, cutter two ends is that 7 degree taper seats, interstitial hole are that square hole is to transmit the cutting moment of torque.