CN201645267U

CN201645267U - Polishing fixture for octagonal hard alloy milling blade

Info

Publication number: CN201645267U
Application number: CN2010201732610U
Authority: CN
Inventors: 孙盛丽; 魏崇巍; 刘红坤
Original assignee: Harbin Turbine Co Ltd
Current assignee: Harbin Turbine Co Ltd
Priority date: 2010-04-28
Filing date: 2010-04-28
Publication date: 2010-11-24
Anticipated expiration: 2020-04-28

Abstract

The utility model discloses a polishing fixture for an octagonal hard alloy milling blade, relating to a polishing fixture for a hard alloy milling blade. The polishing fixture solves the problems that the existing polishing fixture can not guarantee the dimension precision of the octagonal hard alloy milling blade, the worn milling blade is discarded, and the use cost of the cutter is high. The upper end surface of an installation body is an inclined surface; the inclined surface inclines towards the inner side surface of a vertical board; an included angle between the inclined surface and the horizontal surface is 15 degrees plus or minus 2'; a positioning seat is fixedly installed on the inclined surface of the installation body; an installation hole is arranged on the positioning seat; the cross section of the installation hole is a regular octagon; a passing shaft, an regular octagonal column, a convex edge, and a miller blade fixing table are made into a whole body coaxially; the passing shaft and the regular octagonal column are installed in the installation hole; the regular octagonal column is matched with the installation hole; the lower end surface of the convex edge pushes against the upper end surface of the positioning seat; and the upper end surface of the miller blade fixing table is parallel to the inclined surface of the installation body. The octagonal hard alloy milling blade polished by the polishing fixture has high dimension precision, and low use cost of the cutter.

Description

Octagon carbide-tipped milling cutter sheet grinding clamp

Technical field

The utility model relates to a kind of carbide-tipped milling cutter sheet grinding clamp, is specifically related to a kind of octagon carbide-tipped milling cutter sheet grinding clamp, belongs to the Machining Technology field.

Background technology

Octagon carbide-tipped milling cutter sheet is the universal cutter that coarse milling and finish-milling are cut turbine blade, and annual use amount is very big, and octagon carbide-tipped milling cutter sheet is an outsourcing import blade, costs an arm and a leg, and the cost of use of cutter is very high.Octagon carbide-tipped milling cutter chip architecture as depicted in figs. 1 and 2, the relief angle α of cutter blade is 15 °, cutter blade mainly weares and teares when milling on the knife face of back, usually just do behind the octagon carbide-tipped milling cutter pad wear and scrap processing, the carbide-tipped milling cutter sheet reconditioning that wearing and tearing if can be scrapped is come out, reaching instructions for use, is the technical problem of the considerable and very worth research and inquirement of economic worth.But because this cutter blade is installed on 45 ° of face milling cutters cutter hubs, very high to this cutter blade dimension precision requirement, requirement is beated in 0.03mm.Therefore, only develop the dimensional accuracy that high-precision special-purpose grinding clamp could guarantee this cutter blade, satisfy instructions for use.

Summary of the invention

The purpose of this utility model is in order to solve the dimensional accuracy that existing grinding clamp can't guarantee octagon carbide-tipped milling cutter sheet, just do after the cutter blade wearing and tearing and scrap processing, the problem that the cost of use of cutter is high, and then a kind of octagon carbide-tipped milling cutter sheet grinding clamp is provided.

The technical solution of the utility model is: octagon carbide-tipped milling cutter sheet grinding clamp comprises base, positioning seat and clamp body, described base is by the convex shape base plate, riser and fixing body are formed, respectively have a U type groove on the both sides shoulder of described convex shape base plate, riser and fixing body are arranged on the upper surface of convex shape base plate, the upper surface of fixing body is the inclined-plane, the inclined-plane tilts to the medial surface direction of riser, the angle of inclined-plane and horizontal plane is 15 ° ± 2 ', described convex shape base plate, riser and fixing body are made one, described positioning seat is fixedly mounted on the inclined-plane of fixing body, have installing hole on the positioning seat, installing hole is offered along the center line of positioning seat, the cross section of installing hole is octagon, described clamp body comprises by axle, positive eight prisms, convex edge and cutter blade fixed station, described by axle, positive eight prisms, the coaxial successively one of making of convex edge and cutter blade fixed station, describedly be installed in the installing hole by axle and positive eight prisms, positive eight prisms match with installing hole, the lower surface of convex edge is resisted against on the upper surface of positioning seat, and the upper surface of described cutter blade fixed station is parallel with the inclined-plane of fixing body.

The utility model compared with prior art has following effect: the inclined design of base of the present utility model is 15 ° ± 2 ' and, realized knife face behind the octagon carbide-tipped milling cutter sheet navigated to the emery wheel parallel position and carried out reconditioning; Positive eight prisms match with installing hole, and positive eight halving precisions prismatic and installing hole have guaranteed the reconditioning precision of cutter blade; Utilize the dimensional uniformity of each the octagon carbide-tipped milling cutter sheet after the grinding clamp reconditioning of the present utility model good, the dimensional accuracy height of each octagon carbide-tipped milling cutter sheet, it is beated in 0.03mm, reached instructions for use fully, be more than 80% of new cutter blade service life the service life of the cutter blade after the reconditioning; The utility model has been realized the reconditioning of octagon carbide-tipped milling cutter sheet, has significantly reduced the outsourcing amount of cutter blade, has reduced the cost of use of cutter.

Description of drawings

Fig. 1 is the front view of octagon carbide-tipped milling cutter sheet, and Fig. 2 is the A-A cutaway view of Fig. 1, and Fig. 3 is an overall structure front view of the present utility model, Fig. 4 is the vertical view of Fig. 3, Fig. 5 is the left view of Fig. 3, and Fig. 6 is the B-B cutaway view of Fig. 5, and Fig. 7 is the overall structure front view of base, Fig. 8 is the vertical view of Fig. 7, Fig. 9 is the left view of Fig. 7, and Figure 10 is the overall structure front view of positioning seat, and Figure 11 is the vertical view of Figure 10, Figure 12 is the overall structure front view of clamp body, and Figure 13 is the left view of Figure 12.

The specific embodiment

The specific embodiment one: present embodiment is described in conjunction with Fig. 3-Figure 13, the octagon carbide-tipped milling cutter sheet grinding clamp of present embodiment comprises base 1, positioning seat 2 and clamp body 3, described base 1 is by convex shape base plate 1-1, riser 1-2 and fixing body 1-3 form, respectively have a U type groove 1-1-1 on the both sides shoulder of described convex shape base plate 1-1, riser 1-2 and fixing body 1-3 are arranged on the upper surface of convex shape base plate 1-1, the upper surface of fixing body 1-3 is inclined-plane 1-3-1, inclined-plane 1-3-1 tilts to the medial surface 1-2-1 of riser 1-2 direction, the angle β of inclined-plane 1-3-1 and horizontal plane is 15 ° ± 2 ', described convex shape base plate 1-1, riser 1-2 and fixing body 1-3 make one, described positioning seat 2 is fixedly mounted on the inclined-plane 1-3-1 of fixing body 1-3, have installing hole 2-1 on the positioning seat 2, installing hole 2-1 offers along the center line of positioning seat 2, the cross section of installing hole 2-1 is octagon, described clamp body 3 comprises by axle 3-1, positive eight prismatic 3-2, convex edge 3-3 and cutter blade fixed station 3-4, described by axle 3-1, positive eight prismatic 3-2, the coaxial successively one of making of convex edge 3-3 and cutter blade fixed station 3-4, describedly be installed in the installing hole 2-1 by axle 3-1 and positive eight prismatic 3-2, positive eight prismatic 3-2 match with installing hole 2-1, the lower surface of convex edge 3-3 is resisted against on the upper surface of positioning seat 2, and the upper surface of described cutter blade fixed station 3-4 is parallel with the inclined-plane 1-3-1 of fixing body 1-3.

The specific embodiment two: present embodiment is described in conjunction with Fig. 5, the grinding clamp of present embodiment also increases pressing plate 4, the inclined-plane 1-3-1 of the upper surface of riser 1-2 and fixing body 1-3 is parallel to each other, one end of pressing plate 4 is installed on the upper surface of riser 1-2, and the other end of pressing plate 4 is pressed on the upper surface of convex edge 3-3.So be provided with, the reconditioning precision is higher.Other composition is identical with the specific embodiment one with annexation.

Using method: using method of the present utility model is described in conjunction with Fig. 5, earlier grinding clamp is installed on the cutter and tool grinding machine during reconditioning, the arbitrary back knife face of centering octagon cutter blade 5 then, with screw it is clamped on the cutter blade fixed station 3-4 of clamp body 3, pressing plate 4 compresses the upper surface of convex edge 3-3, after reconditioning finishes, loosening pressing plate 4, utilize positive eight prismatic 3-2 of location usefulness that another back knife face of cutter blade is navigated to the reconditioning position, by that analogy, knife face reconditioning behind eight of cutter blade is finished.

Claims

1. octagon carbide-tipped milling cutter sheet grinding clamp, it comprises base (1), positioning seat (2) and clamp body (3), it is characterized in that: described base (1) is by convex shape base plate (1-1), riser (1-2) and fixing body (1-3) are formed, respectively have a U type groove (1-1-1) on the both sides shoulder of described convex shape base plate (1-1), riser (1-2) and fixing body (1-3) are arranged on the upper surface of convex shape base plate (1-1), the upper surface of fixing body (1-3) is inclined-plane (1-3-1), inclined-plane (1-3-1) tilts to medial surface (1-2-1) direction of riser (1-2), the angle (β) of inclined-plane (1-3-1) and horizontal plane is 15 ° ± 2 ', described convex shape base plate (1-1), riser (1-2) and fixing body (1-3) are made one, described positioning seat (2) is fixedly mounted on the inclined-plane (1-3-1) of fixing body (1-3), have installing hole (2-1) on the positioning seat (2), installing hole (2-1) is offered along the center line of positioning seat (2), the cross section of installing hole (2-1) is octagon, described clamp body (3) comprises by axle (3-1), positive eight prisms (3-2), convex edge (3-3) and cutter blade fixed station (3-4), described by axle (3-1), positive eight prisms (3-2), the coaxial successively one of making of convex edge (3-3) and cutter blade fixed station (3-4), describedly be installed in the installing hole (2-1) by axle (3-1) and positive eight prisms (3-2), positive eight prisms (3-2) match with installing hole (2-1), the lower surface of convex edge (3-3) is resisted against on the upper surface of positioning seat (2), and the upper surface of described cutter blade fixed station (3-4) is parallel with the inclined-plane (1-3-1) of fixing body (1-3).

2. according to the described octagon carbide-tipped milling cutter of claim 1 sheet grinding clamp, it is characterized in that: described grinding clamp also comprises pressing plate (4), the inclined-plane (1-3-1) of the upper surface of riser (1-2) and fixing body (1-3) is parallel to each other, one end of pressing plate (4) is installed on the upper surface of riser (1-2), and the other end of pressing plate (4) is pressed on the upper surface of convex edge (3-3).