CN2455428Y

CN2455428Y - Self centralizing machining tip

Info

Publication number: CN2455428Y
Application number: CN 00261935
Authority: CN
Inventors: 宋永久; 冯建新
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-13
Filing date: 2000-12-13
Publication date: 2001-10-24
Anticipated expiration: 2010-12-13

Abstract

The utility model belongs to a cutting tool, particularly a cutting head which can carry out centering automatically. The utility model has the main technical proposal that the utility model comprises a cutter frame base and a cutter. The utility model is characterized in that uniformly distributed positioning bolts and springs are used for connecting a cutter frame with the cutter frame base, wherein, the inner ends of the positioning bolts are matched with screw holes on the cutter frame, and the outer ends are positioned in through holes on the cutter frame base and can freely slide in the through holes. The springs are sheathed on a positioning bolt between the cutter frame base and the cutter frame, and the cutter frame is connected with the cutter of which the cutting edge points to the center of the cutter frame. The device can be used for avoiding that an anchor rod body is touched at the time of cutting.

Description

The self-centering cutting head

The utility model belongs to a kind of cutting element, especially a kind of can self centering cutting head.

When processing equal strength anchor pole, usually all need be at one section screw thread of the end of anchor pole processing, so that connect.Owing on the anchor pole surface cross rib that protrudes in the surface is arranged, when machining screw, generally should earlier this cross rib be machined away.In the prior art, employing can not self centering fixing cutting head be processed, because anchor pole is long, on whole length, can occur phenomenons such as bending inevitably, this makes original cutting head when cutting, causes the cross rib of anchor pole one side all not machine away as yet because of eccentric, and opposite side has been cut to the body part of anchor pole, thus have influence on the equal strength anchor pole etc. the epistasis energy.

The purpose of this utility model is a kind of self-centering cutting head of design, when avoiding cutting, is cut to the body part of anchor pole.

Its main technical schemes comprises carriage saddle and cutter, it is characterized in that in carriage saddle, utilizing equally distributed bolt to be connected knife rest with spring, wherein, the inner of bolt cooperates with screwed hole on the knife rest, its outer end is positioned at the through hole on the carriage saddle, and can in this through hole, move freely, spring housing connects the cutter that the edge of a knife points to the center of knife rest on knife rest on the one section bolt that is positioned between carriage saddle and knife rest.

Its another feature is the inboard uniform shrinkage pool at knife rest, at the uniform section in relevant position in its outside less than shrinkage pool and the through hole that connects with shrinkage pool, placement positioning piece and cutter in shrinkage pool, fastening bolt pass behind the through hole on the knife rest with locating piece on screwed hole be connected.

Another feature of the present utility model be cutter to be positioned at a section of shrinkage pool be the inner little wedge that an outer end is big, point to the knife rest center, locating piece or knife rest are an inclined-plane that cooperates with the inclined-plane of wedge with the contact-making surface of this wedge.

The 4th feature of the present utility model be end face that locating piece points to knife rest center one end be one with the identical mutually arc surface of the inner headed face of locating piece.

The utility model has the advantages that owing to utilize bolt and the spring evenly arranged to interconnect between knife rest and carriage saddle, and, one end of bolt is fixedlyed connected with knife rest, the other end floats with carriage saddle and is connected, during work, when the processing capacity of anchor pole one side during greater than opposite side, knife rest is under the effect of spring, can be from the less side shifting of trend processing capacity, thereby avoided because of the eccentric problem of Tool in Cutting that cause to bolt body, even therefore have under the eccentric situation, also can reach the purpose of cutting cross rib protection basic circle at anchor pole; Secondly, cutter is fixed on the knife rest by wedge, and is simple in structure, easy for installation, also is convenient to centering simultaneously.

Fig. 1 is a structure chart of the present utility model.

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

As shown in the figure: in carriage saddle 1, utilize equally distributed bolt 7 to be connected knife rest 5 with spring 6, wherein, the inner of bolt 7 cooperates with screwed hole on the knife rest 5, its outer end is positioned at the through hole on the carriage saddle 1, and can in this through hole, move freely, spring 6 is enclosed within on the one section bolt 7 that is positioned at 5 on carriage saddle 1 and knife rest, on knife rest 5, connect the cutter 2 that the edge of a knife points to the center of knife rest 5, inboard uniform shrinkage pool at knife rest 5, the uniform section in relevant position outside it is less than shrinkage pool, and the through hole that connects with shrinkage pool, placement positioning piece 4 and cutter 2 in shrinkage pool, fastening bolt 3 pass behind the through hole on the knife rest 5 with locating piece 4 on screwed hole be connected.It is the inner little wedge that an outer end is big, point to knife rest 5 centers that cutter 2 is positioned at a section of shrinkage pool, and locating piece 4 or knife rest 5 are an inclined-plane that cooperates with the inclined-plane of wedge with the contact-making surface of this wedge.The end face that locating piece 4 points to center one end of knife rests 5 be one with the identical mutually arc surface of the inner headed face of locating piece 4.

Claims

1, self-centering cutting head, comprise carriage saddle (1) and cutter (2), it is characterized in that in carriage saddle (1), utilizing equally distributed bolt (7) to be connected knife rest (5) with spring (6), wherein, the inner of bolt (7) cooperates with screwed hole on the knife rest (5), its outer end is positioned at the through hole on the carriage saddle (1), and can in this through hole, move freely, spring (6) is enclosed within on the one section bolt (7) that is positioned between carriage saddle (1) and knife rest (5), goes up at knife rest (5) to connect the cutter (2) that the edge of a knife points to the center of knife rest (5).

2, cutting head according to claim 1, it is characterized in that inboard uniform shrinkage pool at knife rest (5), at the uniform section in relevant position in its outside less than shrinkage pool and the through hole that connects with shrinkage pool, placement positioning piece (4) and cutter (2) in shrinkage pool, fastening bolt (3) pass behind the through hole on the knife rest (5) with locating piece (4) on screwed hole be connected.

3, cutting head according to claim 1 and 2, it is characterized in that it is the inner little wedge that an outer end is big, point to knife rest (5) center that cutter (2) is positioned at a section of shrinkage pool, locating piece (4) or knife rest (5) are an inclined-plane that cooperates with the inclined-plane of wedge with the contact-making surface of this wedge.

4, cutting head according to claim 2, it is characterized in that end face that locating piece (4) points to knife rest (5) center one end be one with the identical mutually arc surface of the inner headed face of locating piece (4).