CN102029438B

CN102029438B - Method for removing burrs from through orifices in workpiece

Info

Publication number: CN102029438B
Application number: CN 200910196762
Authority: CN
Inventors: 刘浩东
Original assignee: Shanghai GKN Huayu Driveline Systems Co Ltd
Priority date: 2009-09-29
Filing date: 2009-09-29
Publication date: 2012-04-11
Anticipated expiration: 2029-09-29
Also published as: CN102029438A

Abstract

The invention discloses a method for removing burrs from through orifices in a workpiece. The workpiece is processed with a first hole and a second hole communicated longitudinally and transversely, and the burrs at the through orifices face the interior of the previously processed first hole. The method comprises the following steps of: a, inserting a first tool into the first hole, wherein the first tool comprises a handle part and an edge part, the edge part is adapted with the inside diameter of the first hole, one part of burrs are turned to the interior of the second hole when the edge part passes through the through orifices, and the other part of burrs are cut; b, inserting a second tool into the second hole, wherein the second tool comprises a handle part and a head, the head is adapted with the inside diameter of the second hole, and the burrs in the second hole are turned to the interior of the first hole when the head passes through the through orifices; c, withdrawing the second tool from the second hole; and d, withdrawing the first tool from the first hole, wherein the rest burrs are cut when the edge part passes through the through orifices. The method removes the burrs from the through orifices in the workpiece in a mechanical mode, is simple in use, and has low cost.

Description

Remove the method for phase perforation mouth burr in the workpiece

Technical field

The present invention relates to a kind of method for cleaning of machine workpieces, be specifically related to a kind of because of on workpiece, boring the removal method of the aperture burr that the phase perforation forms.

Background technology

All need process the phase perforation that intersects in length and breadth on a lot of workpiece; Such as on the automobile gearbox axial workpiece; In order to realize lubricating function, be processed with the axial hole and the radial hole that are connected usually, processing behind these holes at the place of passing through mutually can residual burr; Unclean like residual deburred, will cause damage to gearbox.Particularly, if part material is a mild steel, then can produce not only big but also tough and tensile burr in the aperture; These burrs are difficult to remove clean with conventional method, method commonly used has: high pressure water washing, burr brush etc., but when the aperture is very little; When having only 2-3mm, be difficult to remove with said method.

Summary of the invention

The technical problem that the present invention will solve provides a kind of method of the interior phase perforation mouth burr of removal workpiece of more simple possible, to overcome the above-mentioned defective of prior art.

In order to solve the problems of the technologies described above; The present invention adopts following technical scheme: a kind of method of removing phase perforation mouth burr in the workpiece; Be processed with first hole and second hole passed through mutually in length and breadth on the said workpiece, the burr at phase perforation mouth place said method comprising the steps of in first hole of processing earlier:

A) in first hole, insert first instrument, said first instrument comprises shank and blade, and the internal diameter in the said blade and first hole is suitable, and said blade turns in second hole part burr when passing through phase perforation mouth, and another part burr is cut off;

B) in second hole, insert second instrument, said second instrument comprises shank and head, and the internal diameter in the said head and second hole is suitable, and said head turns over back in first hole burr in second hole when passing through phase perforation mouth;

C) in second hole, extract second instrument out;

D) in first hole, extract first instrument out, when said blade passes through phase perforation mouth all the other burrs are cut away.

Preferably, a blade and a back blade before the blade of said first instrument comprises one.

Further, said first instrument comprises a head that is connected with shank, and said head comprises front end face, rear end face and side, and said front end face and intersection, side form preceding blade, and said rear end face and intersection, side form the back blade.

Further, when first instrument inserts, preceding blade cutting burr; When first instrument is extracted out, back blade cutting burr.

The present invention has adopted two simple tools, reaches the effect of removing phase perforation mouth burr in the workpiece through mechanical means, is a kind of method simple, that cost is low of using.Particularly the tough and tensile burr in the small-diameter hole that the existing machinery method can not be cleared up, method of the present invention has more special advantages.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further explain.

Fig. 1 is the sketch map with workpiece of two phase perforations.

Fig. 2 is the partial enlarged drawing at A place among Fig. 1.

Fig. 3 is a kind of sketch map of first instrument.

Fig. 4 is the sketch map of another kind of first instrument.

Fig. 5 is the sketch map of the inventive method step a.

Fig. 6 is the sketch map of the inventive method step b.

Fig. 7 is the sketch map of the inventive method step c.

Fig. 8 is the sketch map of the inventive method steps d.

The specific embodiment

At first like Fig. 1, shown in Figure 2, be processed with first hole 12 and second hole 13 passed through mutually in length and breadth on the workpiece 1, when processing first hole 12, processing second hole 13, back in the ban, the place of passing through mutually in two holes, aperture can produce burr 11, and burr 11 can be in first hole 12.

In order to remove burr 11, adopt one first instrument, as shown in Figure 3, first instrument 2 comprises a shank 22 and the head that is connected with shank 21, the aperture in the diameter of head 21 and first hole is basic identical, but can in first hole, slide freely.Shank 22 is thinner than head 21, and is convenient to hold.Head 21 comprises front end face 23, rear end face 27 and side 25, and front end face 23 is not wanted chamfering with the cusped edge of 25 intersections, side, blade 24 before forming; Rear end face 27 is not wanted chamfering with the cusped edge of 25 intersections, side, forms back blade 26.Like this, preceding blade 24, back blade 26 all are suitable with the internal diameter in first hole, can paste the inwall slip in first hole.

The step of the inventive method is following:

A) as shown in Figure 5; In first hole 12 of workpiece, insert first instrument 2, in conjunction with Fig. 3, when the head 21 of first instrument passes through phase perforation mouths; Part burr (burr on right side among Fig. 5) 11 is turned in second hole 13, and another part burr (burr in left side among Fig. 5) is then cut away by preceding blade 24.

B) as shown in Figure 6; In second hole, insert second instrument 3; The shape of second instrument 3 can be similar with the shape of first instrument shown in Figure 3, also comprises shank and head, and the internal diameter in the head of second instrument 3 and second hole is suitable; When the head of second instrument 3 passes through phase perforation mouth, the burrs 11 in second hole 13 are turned over back in first hole 12 again.

C) as shown in Figure 7, in second hole 13, extract second instrument 3 out.

D) as shown in Figure 8, in first hole 12, extract first instruments 2 out, when the head 21 of first instrument during through phase perforation mouths, through above-mentioned steps b turn over back again in first hole 12 all the other burrs 11 by after blades 26 cut away.Like this, the burr 11 at phase perforation mouth place has just been fallen by full scale clearance.

Can find out that by said process the effect of second instrument 3 is the directions that change burr, does not directly cut burr; Therefore; Though the shape of second instrument is similar with first instrument, its blade is not necessary especially, as long as can burr be pushed up back in first hole.

The shape that is appreciated that first instrument and second instrument is not unique, as long as can play like above-mentioned identical effect, just can embodiment of the present invention, and just should be within protection scope of the present invention.Such as, the shape that first instrument 2 also can be as shown in Figure 4, it has only the blade 28 of a shank 22 and an annular, when first instrument 2 inserts or extracts first hole out, all by these blade 28 cutting burrs, also can realize the present invention.But compare with structure shown in Figure 3, no matter be the durability that also is to use from the convenience of making, structure shown in Figure 3 is obviously more excellent.

Claims

1. a method of removing phase perforation mouth burr in the workpiece is processed with first hole and second hole passed through mutually in length and breadth on the said workpiece, and the burr at phase perforation mouth place is characterized in that in first hole of processing earlier, said method comprising the steps of:

A) in first hole, insert first instrument; Said first instrument comprises shank and blade; The internal diameter in the said blade and first hole is suitable, and said blade turns in second hole part burr when passing through phase perforation mouth, and another part burr is cut off; The blade that inserts first instrument in first hole is fully through phase perforation mouth, and can be to the head of second instrument causes obstruction during through phase perforation mouth;

C) in second hole, extract second instrument out;

2. the method for phase perforation mouth burr is characterized in that in the removal workpiece according to claim 1, a blade and a back blade before the blade of said first instrument comprises one.

3. the method for phase perforation mouth burr in the removal workpiece according to claim 2; It is characterized in that; Said first instrument comprises a head that is connected with shank; Said head comprises front end face, rear end face and side, and said front end face and intersection, side form preceding blade, and said rear end face and intersection, side form the back blade.

4. the method for phase perforation mouth burr is characterized in that in the removal workpiece according to claim 2, when first instrument inserts, and preceding blade cutting burr; When first instrument is extracted out, back blade cutting burr.