CN2060380U

CN2060380U - Gauge for milling cutter

Info

Publication number: CN2060380U
Application number: CN 90202225
Authority: CN
Inventors: 苏恒钦
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-03-05
Filing date: 1990-03-05
Publication date: 1990-08-15

Abstract

The utility model discloses a milling gauge material measure in mechanical workout, in particular to a gauge for a milling cutter. The gauge for a milling cutter is composed of a master plate, a fixed body and a main body. The master plate has a gauge edge being meshed with the cutter blade shape of a milling cutter. The gauge for a milling cutter is used to proceed to the gauge front milling when milling a workpiece such as a twist drill, causing the position tolerance and the helix angle of a milled workpiece achieve the requirement of design. Compared with empirical methods such as scribe, or visual inspection, or eccentric movement, or feeding experiment, etc., the utility model has the advantages of accurate and reliable gauge, convenient operation, high production quality of milling workpieces and long service life.

Description

Gauge for milling cutter

The utility model relates to milling tool setting measurer in the machined, is that a kind of milling with tool setting advised specifically.

At present, in machined, use complicated drilling tools such as milling machine milling fluted drill, it is experience with miller, adopt line, range estimation, eccentric move or method such as feed test is carried out tool setting, position of related features with definite drilling tool of being processed, make it to reach designing requirement, but adopting these methods to carry out tool setting both wasted time and energy, lack of standardization again, inaccurate.Be difficult to determine the anterior angle of drilling tool, influence end product quality.

The purpose of this utility model is that a kind of simple and reliable milling tool setting measurer one that designs at above-mentioned technological deficiency mills with tool setting and advises.

The utility model designs according to pattern coincidence method principle, mill with tool setting rule and comprise model, fixed body and body, model is L-shaped, be provided with in the upper left corner of its vertical direction that outer shape and edge of milling cutter shape match to the edge of a knife, and be provided with one section circular arc on its top, the radius of circular arc equals the radius of drill bit, the body belly is semi-cylindrical, on the semicolumn plane, open a groove that matches with fixed body, groove center line and body radial level angle equal the helical angle of drill bit, a cascaded surface is respectively established in both sides, groove middle part, fixed body is rectangle, the heart is established a rectangle holddown groove that matches with the model horizontal tail along groove direction therein, the model horizontal tail is close to insert in this holddown groove and fixes, fixed body embeds positioning and fixing in the groove, and the center of circle of model top circular arc is positioned on the rotation AB of body, and a centre bore is respectively established at center, body two ends.

Before the milling workpiece, select to have corresponding to the milling with tool setting rule clamping on milling machine of the edge of a knife and groove trend, and adjust its position make model to the edge of a knife and milling cutter to good, take off to mill and advise with tool setting, change the workpiece for the treatment of milling and carry out milling.Because of the outer shape and the edge of milling cutter shape to the edge of a knife of model matches, so model is exactly normal direction (or the axially) cross sectional shape of institute's milling workpiece to the cross sectional shape of the edge of a knife, therefore model tool setting degree of lip-rounding shape has determined the position of related features of institute's milling workpiece, as the anterior angle of fluted drill.Groove center line and body radial level angle equal the helical angle of institute's milling workpiece.Therefore according to the position of related features and the helical angle of institute's milling workpiece, design has corresponding model and milling with tool setting of groove trend to the edge of a knife advises, and mills preceding tool setting with it, and milling gained workpiece as a result can reach designing requirement.Utilize the utility model to carry out tool setting than accurate, reliable, easy to use with the empirical method tool setting.The workpiece quality of institute's milling is good.

Now in conjunction with the accompanying drawings and embodiments the utility model is described in further detail:

Fig. 1 is the three-dimensional structure diagram that mills with tool setting rule;

Fig. 2 is that skewed slot mills the front view with tool setting rule;

Fig. 3 is that skewed slot mills the vertical view with tool setting rule;

Fig. 4 is the A-A view of Fig. 3;

Fig. 5 is a drill bit model schematic diagram;

Fig. 6 is that straight trough mills the front view with tool setting rule;

Fig. 7 is that straight trough mills the vertical view with tool setting rule;

Fig. 8 is the A-A view of Fig. 6.

According to Fig. 1-Fig. 4, mill with tool setting rule and comprise model 1, fixed body 2 and body 3, model 1 is L-shaped, be provided with in the upper left corner of its vertical direction that outer shape and edge of milling cutter shape match to the edge of a knife 4, and be provided with on its top one section circular arc 4 ', the radius of circular arc equals the radius of drill bit, body 3 bellies are semi-cylindrical, on the plane 6 of semicolumn, open a groove 7 that matches with fixed body 2, groove 7 center lines and body 3 horizontal sextant angle between radially equals the helical angle of drill bit, according to the helical angle difference of the drill bit of institute's milling, can design the grooves 7 of different trends, obtain various skewed slots and mill with tool setting and advise, this angle is 30 ° in the present embodiment, both sides, groove 7 middle part respectively establish a cascaded surface 8 and 8 ', milling cutter produces with body 3 and blocks phenomenon mutually when avoiding tool setting, and alleviates the weight of body 3.Fixed body 2 is rectangle, the heart is established a rectangle holddown groove 5 that matches with model 1 horizontal tail along groove direction therein, the horizontal tail of model 1 is inserted in this holddown groove 5, make the vertical and horizontal two sides of model 1 be close to fixed body 2, and vertical fixing with the chromium plating instrument spiral nail 9 and 9 ' do of band annular knurl.Fixed body 2 embeds in the groove 7, by pin 10 location, circular arc 4 ' center of circle, model 1 top is positioned on the rotation AB of body 3, by screw 11 fixed body 2 is fixed on the body 3, a centre bore 12 is respectively established at center, body 3 two ends, makes it and milling machine two top matching.It is that HRc60～65 Ageing Treatment are made through quenching hardness that model 1 adopts T10A high-quality tool steel or 65Mn steel alloy; It is HRc33～36 that fixed body 2 and body 3 all adopt 45# high-quality steel, quenching and tempering hardness.Body 3 two ends centre bores 12 adopt high-frequency quenchings, and hardness is HRc58～62, the processing of turning blue of body 3 integral body.Body 3 handle parts play anti-skidding effect when adopting annular knurl 13 to be convenient to operate, correction reference face when rectangle facet 14 mills with the tool setting of tool setting rule for straight trough on its afterbody.

As mentioned above, normal direction (or the axially) cross sectional shape of the shape decision milling workpiece of 1 pair of edge of a knife 4 of model, so model 1 is according to the decision of the position of related features of work piece to the edge of a knife 4 shapes, as want fluted drill of milling, the shape to the edge of a knife 4 of drill bit model 1 is then determined by following parameter so: 1/2 unbearabling thickness d of drill bit, outside diameter R1, drill bit point of a knife right circles arc radius R 2, drill bit point of a knife left circles arc radius R 3, drill bit corner radius r, right side circular arc centre-to-centre spacing l1, a left side, right side circular arc centre-to-centre spacing sum l2, as shown in Figure 5.The O point is a bit central among the figure, i.e. the center of circle of outside diameter arc that R1 draws, and O1 and O2 are respectively right, left side center of arc.Select for use different parameters to draw different drill bit models 1, cooperate the grooves 7 of different trends, tool setting when gained mills and can be used for the drilling tool of various different anterior angles of milling and helical angle with tool setting rule.D=1.5mm, R1=22.5mm, R2=25.98mm, R3=22.94mm, l1=9.09mm, l2=16.02mm, r=4.5mm in the present embodiment.

With model 1 the edge of a knife 4 shaped design are 90 ° for the horizontal sextant angle between the rotation AB of trapezoidal, groove 7 center lines and body 3 time, promptly obtaining straight trough mills with tool setting and advises, as Fig. 6, Fig. 7 and shown in Figure 8, tool setting when it can be used for the various straight trough workpiece of milling.

Claims

1, a kind of by model 1, milling with tool setting that fixed body 2 and body 3 are formed advised, it is characterized in that said model 1 is L-shaped, be provided with in the upper left corner of its vertical direction that outer shape and edge of milling cutter shape match to the edge of a knife, and establish on its top one section circular arc 4 ', circular arc 4 ' radius equal the radius of drill bit, body 3 bellies are semi-cylindrical, on semicolumn plane 6, open a groove 7 that matches with fixed body 2, groove 7 center lines and body 2 radial level angles equal the helical angle of drill bit, both sides, groove 7 middle part respectively establish a cascaded surface 8 and 8 ', fixed body 2 is rectangle, the heart is established a rectangle holddown groove 5 that matches with model 1 horizontal tail along groove 7 directions therein, model 1 horizontal tail is close to insert in this holddown groove 5 and fixes, fixed body 2 embeds positioning and fixing in the groove 7, circular arc 4 ' center of circle, model 1 top is positioned on the rotation AB of body 3, and a centre bore 12 is respectively established at the center, two ends of body 3.

2, a kind of milling with tool setting according to claim 1 advised, it is characterized in that described model 1 is the drill bit model, half d=1.5mm, outside diameter R1=22.5mm, drill bit point of a knife right circles arc radius R 2=25.98mm, drill bit point of a knife left circles arc radius R 3=22.94mm, the right side circular arc centre-to-centre spacing l1=9.09mm, the left and right side center of arc that are the drill bit unbearabling thickness are apart from sum l2=16.02mm, drill bit corner radius r=4.5mm, the radial level angle of described groove 7 center lines and body 3 is 30 °.

3, a kind of milling according to claim 1 with tool setting rule, it is trapezoidal to the edge of a knife 4 to it is characterized in that described model 1 has down, and the horizontal sextant angle between the rotation AB of described groove 7 center lines and body 3 is 90 °.