A kind of bevel gear shaft flank of tooth pitch cone positioning tool
Technical field
The present invention relates to the gear machining technology field, particularly a kind of frock of utilizing the self-centering processing diameter of axle of gear teeth face pitch cone location circular cone (right cone, arc awl) gear shaft.
Background technology
Because bevel pinion shaft exists geometric eccentricity and heat treatment deformation in system tooth operation, be a great problem that system tooth industry exists for a long time.Existing processing mode is to utilize the two ends centre bore of gear shaft to come the positioning head frame driving lever dialling the part processing diameter of axle, if but the coaxial accuracy of the pitch cone of gear and the diameter of axle is not high in existing processing mode, when the high speed rotary transmission, will produce periodic impact endurance test shock, so produce noise.
Summary of the invention
Goal of the invention of the present invention is: at the problem of above-mentioned existence, the geometric eccentricity of a kind of corrected gear to greatest extent and the diameter of axle is provided, the diameter of axle processed and the awl pitch circle of gear are remained on the same axial line to greatest extent, thereby effectively improve the bevel gear shaft flank of tooth pitch cone positioning tool of processing precision of products.
Technical scheme of the present invention is achieved in that a kind of bevel gear shaft flank of tooth pitch cone positioning tool, it is characterized in that: comprise band Morse taper shank frock body, floating type steel ball retaining ring and top, described floating type steel ball retaining ring is enclosed within and places in the lump in the teeth groove of product to be processed front end in the groove that described band Morse taper shank frock body one end is provided with, described floating type steel ball retaining ring is resisted against the limited step place in the groove, in the described top centre bore that is resisted against the product to be processed tail end.
Bevel gear shaft flank of tooth pitch cone positioning tool of the present invention, its described floating type steel ball retaining ring comprises at least three steel balls with holes, steel wire and positive stops, described steel ball with holes is evenly distributed on the circumference of steel wire, the aperture of described steel ball with holes is greater than gauge of wire, described positive stop is separately positioned on the described steel wire, the both sides of corresponding steel ball with holes, and is at regular intervals between described positive stop and the corresponding steel ball with holes.
Bevel gear shaft flank of tooth pitch cone positioning tool of the present invention, its described steel ball with holes are resisted against respectively on the groove inwall and limited step wall at limited step place, the rectangular or obtuse angle structure of described groove inwall and limited step wall.
Bevel gear shaft flank of tooth pitch cone positioning tool of the present invention, its described band Morse taper shank frock body is provided with quick-expansion stop pin assembly, described quick-expansion stop pin assembly comprises housing, eye bolt and stop pin, described eye bolt and housing connect as one and form a cavity in housings, the through hole that described stop pin lower end is passed on the eye bolt places in the cavity of described housing, be provided with the hole corresponding in described housing lower surface with the eye bolt through hole, described eye bolt is provided with breach, be provided with the spacer pin that mates with described breach on described stop pin top, in described stop pin bottom, be provided with positive stop lug boss in the cavity, on described stop pin, be socketed with elastomeric element between positive stop lug boss and the eye bolt.
The present invention is by the structural design of band Morse taper shank frock end of body groove and the cooperation that is enclosed within floating type steel ball retaining ring in the teeth groove of product to be processed end, the diameter of axle of product to be processed and the awl pitch circle of gear are remained on the same axial line to greatest extent, revised the geometric eccentricity of the gear and the diameter of axle to greatest extent, prevent to add the problem of tooth runout in man-hour, improved the product precision greatly; Being provided with of quick-expansion stop pin assembly prevented that effectively product to be processed from adding man-hour because cutter or emery wheel feed amount is excessive, the too fast phenomenon that causes product to be processed to skid of feed speed.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.
Fig. 2 is the structural representation of floating type steel ball retaining ring in the embodiment of the invention 1.
Fig. 3 is an A portion enlarged drawing among Fig. 1.
Fig. 4 is the structural representation of quick-expansion stop pin assembly among the present invention.
Fig. 5 is the structural representation of the embodiment of the invention 2.
Fig. 6 is the structural representation of floating type steel ball retaining ring in the embodiment of the invention 2.
Fig. 7 is a B portion enlarged drawing among Fig. 5.
Mark among the figure: 1 is band Morse taper shank frock body, and 2 is floating type steel ball retaining ring, and 2a is a steel ball with holes, and 2b is a steel wire, 2c is a positive stop, and 3 is top, and 4 is product to be processed, and 5 is groove, 5a is the groove inwall, and 6 is limited step, and 6a is spacing step wall, 7 is quick-expansion stop pin assembly, and 7a is a housing, and 7b is an eye bolt, 7c is a stop pin, and 7d is a cavity, and 7e is a breach, 7f spacer pin, 7g are positive stop lug boss, and 7h is an elastomeric element.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is done detailed explanation.
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Embodiment 1: as shown in Figure 1, a kind of bevel gear shaft flank of tooth pitch cone positioning tool, comprise band Morse taper shank frock body 1, floating type steel ball retaining ring 2, top 3 and quick-expansion stop pin assembly 7, described floating type steel ball retaining ring 2 is enclosed within and places in the lump in the teeth groove of product to be processed 4 front ends in the groove 5 that described band Morse taper shank frock body 1 right-hand member is provided with, described floating type steel ball retaining ring 2 is resisted against limited step 6 places in the groove 5, described top 3 are resisted against in the centre bore of product to be processed 4 tail ends, holding product and rotating about 90 degree to 135 degree around axial line, make the centering of product automatic capturing, installation.
As shown in Figure 2, described floating type steel ball retaining ring 2 comprises three steel ball 2a with holes, steel wire 2b and positive stop 2c, described three steel ball 2a with holes are evenly distributed on the circumference of steel wire 2b, the aperture of described steel ball 2a with holes is greater than the diameter of steel wire 2b, described positive stop 2c is separately positioned on the described steel wire 2b, the both sides of corresponding steel ball 2a with holes, at regular intervals between described positive stop 2c and the corresponding steel ball 2a with holes, like this, steel ball can move freely in the zone between the positive stop at two ends up and down; As shown in Figure 3, described steel ball 2a with holes is resisted against respectively on the groove inwall 5a and limited step wall 6a at limited step 6 places, described groove inwall 5a and limited step wall 6a be structure in obtuse angle, the limited step place supports at the formation point that axially and directly makes progress steel ball with holes, satisfied positioning accuracy to steel ball; The obtuse angle structure Design, can avoid the obstruction of groove corner to some product to be processed, and the structural design at limited step place can realize the processing request to the different size product, it is by changing the steel ball with holes of different-diameter, and point axial to steel ball simultaneously and radially supports and gets final product at assurance limited step place.
As shown in Figure 4, described band Morse taper shank frock body 1 is provided with quick-expansion stop pin assembly 7, described quick-expansion stop pin assembly 7 comprises housing 7a, eye bolt 7b and stop pin 7c, described eye bolt 7b and housing 7a connect as one and form a cavity 7d in housing 7a, the through hole that described stop pin 7c passes the lower end on the eye bolt 7b places in the cavity 7d of described housing 7a, its upper end is provided with handle, be provided with the hole corresponding in described housing 7a lower surface with the eye bolt through hole, described eye bolt 7a is provided with breach 7e, be provided with the spacer pin 7f that mates with described breach 7e on described stop pin 7c top, in described stop pin 7c bottom, be provided with positive stop lug boss 7g in the cavity 7d, on described stop pin 7c, be socketed with the elastomeric element 7h that has been compressed between positive stop lug boss 7g and the eye bolt 7b, described elastomeric element is a spring.Fig. 4 inserts the schematic diagram of product to be processed teeth groove for stop pin.
The use of quick-expansion stop pin assembly is to unclamp hand when the handle of holding stop pin after the product installation revolves to turn 90 degrees when spacer pin is aimed at the breach of eye bolt, stop pin automatically inserts the product teeth groove under the effect of spring, prevented because cutter or emery wheel feed amount is excessive, the too fast product to be processed that causes of feed speed skids.The amount of feeding, feed speed are selected can not use when appropriate in reality processing.
Embodiment 2: as illustrated in Figures 5 and 6, wherein said floating type steel ball retaining ring 2 comprises four steel ball 2a with holes, steel wire 2b and positive stop 2c, described four steel ball 2a with holes are evenly distributed on the circumference of steel wire 2b, the aperture of described steel ball 2a with holes is greater than the diameter of steel wire 2b, described positive stop 2c is separately positioned on that described steel wire 2b goes up, the both sides of corresponding steel ball 2a with holes, and is at regular intervals between described positive stop 2c and the corresponding steel ball 2a with holes; As shown in Figure 7, described steel ball 2a with holes is resisted against respectively on the groove inwall 5a and limited step wall 6a at limited step 6 places, described groove inwall 5a and the rectangular structure of limited step wall 6a, the limited step place supports at the formation point that axially and directly makes progress steel ball with holes, satisfied positioning accuracy to steel ball; The structural design at limited step place can realize the processing request to the different size product, and it is by changing the steel ball with holes of different-diameter, and point axial to steel ball simultaneously and radially supports and gets final product at assurance limited step place.Other structures are identical with embodiment 1.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.