CN1087851A

CN1087851A - A kind of straight bit blade milling machine

Info

Publication number: CN1087851A
Application number: CN 93109165
Authority: CN
Inventors: 孙进平; 孙海林; 王永福
Original assignee: 孙进平
Priority date: 1993-08-04
Filing date: 1993-08-04
Publication date: 1994-06-15

Abstract

The present invention relates to the higher mine of a kind of productivity ratio straight bit blade milling machine.This machine is by grinding wheel unit, bore bit clamping device, compositions such as bore bit pendulous device and feeding slide unit.Because the method that this blade milling machine has adopted the present invention to propose is compared with existing sharpening equipment, can become once two sword faces of sharpening simultaneously to sharpening two-edged face at twice originally, reduced half sharpening time, do not need index time.Adopt skive to make this body long-pending little, emery wheel is durable, and grinding quality improves.In addition these facility have simple in structure, easy to operate, the characteristics of being convenient to safeguard.It is suitable as the sharpening equipment of bore bit factory, can also be as mine bore bit sharpening equipment.

Description

A kind of straight bit blade milling machine

The present invention relates to a kind of mine straight bit blade milling machine.

Straight bit is the mine bore bit, and this blade milling machine provided by the invention can be used as the equipment that bore bit manufactory uses, and also can to improve cutting rate, prolong the equipment of service life of the bits as mine sharpening bore bit again.

This kind bore bit two side edge faces are the two garden conical surfaces, and the land of formation is that the two garden conical surfaces intersect and to form.

According to the bore bit blade milling machine that utility model patent 89211832.6 proposes, it is by grinding wheel unit, formations such as bore bit clamping device, swing rotation table device, feed arrangement.Parameters such as the bore bit basil, land cambered surface can be met in grinding process.During this bore bit sharpening, grind a conical surface at every turn.Bore bit is return calibration another conical surface of regrinding.

The purpose of this device invention is: design a novel blade milling machine, its sharpening efficiency is increased, make this blade milling machine can be behind conical surface of original sharpening, the calibration mill another one conical surface.Become and once wear into two conical surfaces.Significantly reduce the sharpening time, enhance productivity.

For achieving this end, such design has been done in the motion of equipment.The formation of bore bit sword face be by emery wheel rotatablely move and the swing of workpiece realizes.The rotation of emery wheel is by driven by motor.The swing of work is realized by linkage.This mechanism drives fork by a piston rod, and fork connection bore bit retained part moves back and forth.Because the clamping cylinder of workpiece can rotate around an axis, piston rod and fork can drive the bore bit swing like this, and swinging track is a garden arc that requires.Here two of the grinding bore bit sword faces are finished simultaneously by two emery wheels.Maybe can not be ground to the land part for avoiding the grinding simultaneously of two emery wheels the emery wheel collision to occur, the emery wheel axis has a distance in vertical direction, handles the back like this and makes the motion of design can guarantee to grind two sword faces that meet the requirements.

Fig. 1 is the vertical view of blade milling machine.

Fig. 2 is the A-A expanded view of Fig. 1.

Fig. 3 is that the K of Fig. 1 is to view.

1 is skive among Fig. 1, and 2 is motor, and the angle of cut of two motors is α, equals the basil of bore bit, and commonly used is 110 ° now.Two emery wheels can suitably be adjusted according to a conventional method in the position of horizontal plane, the variation that brings with compensation abrasion of grinding wheel difference.Fig. 2 is that the A-A of Fig. 1 launches, and two emery wheel axis have a distance H in vertical direction.This distance H makes two emery wheels allow certain lap in vertical view, and does not bump actually.Two emery wheels locus so separately make they can be simultaneously two sword faces of grinding bore bit intactly.

The clamping of bore bit in grinding is to draw claw 4 to realize that claw is stuck on two finished inclined-planes of bore bit, has limited the rotational freedom of bore bit like this by the piston rod in the workpiece clamp locking oil cylinder 6.Workpiece clamp locking oil cylinder 6 is connected on the axle, and axle is installed on the bearing block 11, and the swing of bore bit realizes around this axis.Axis is a definite value to the distance of bore bit land to general straight bit, for example is 180mm.

Bore bit will be swung an angle φ in the sharpening, and in this device, the swing of bore bit realizes that by linkage the piston rod 8 in the oil cylinder 7 is hinged with fork 9, and the casing wall place of the other end of fork 9 and bore bit clamping cylinder is hinged.Piston rod moves back and forth the drive bore bit and does oscillating traverse motion, and designing and calculating makes the pivot angle of bore bit satisfy the complete requirement of side edge face sharpening.

Oil cylinder 7 all is installed on the workbench 12 with bearing block 11 grades, and workbench 12 can by feed arrangement, be realized feed motion on base 13.

This blade milling machine is because the method that has adopted the present invention to propose, compare with now multiplex hand grinding method, can enhance productivity, grinding quality, greatly alleviate workman's labour intensity, compare with existing sharpening equipment, can become once simultaneously two sword faces of sharpening to original two-edged face sharpening at twice, it is obvious enhancing productivity. Adopt skive so that this body is long-pending little, emery wheel is durable. In addition these facility have simple in structure, the easy to operate characteristics of being convenient to safeguard. It is suitable as the sharpening equipment of bore bit factory, can also be as mine bore bit sharpening equipment.

Claims

1, a kind of mine straight bit blade milling machine, by grinding wheel unit, the bore bit clamping device, bore bit pendulous device and feeding slide unit are formed, grinding wheel unit comprises the parallel skive of two same diameters, two emery wheels are not installed on the same horizontal plane, and leave a distance in vertical direction, and the angle of two emery wheel axis on horizontal plane is identical with the bore bit basil, for example be 110 °, during the sharpening bore bit, two emery wheels are worked simultaneously, respectively two sword faces of the same bore bit of grinding.

2, the pendulum radius of bore bit, identical to the pivot distance of the sword face garden conical surface with the bore bit blade tip, i.e. the motion of this kind emery wheel is identical with the bore bit sword face shape that requires to form with the conical surface that the swing of bore bit forms.

3, the swing of bore bit and retained part drives piston rod by the piston in the oil cylinder and moves back and forth, and piston rod connects a fork, a bit on the oil cylinder of fork connection clamping bore bit on the close end face.