CN202539599U

CN202539599U - Combined type cutter for fine boring stepped holes

Info

Publication number: CN202539599U
Application number: CN2012201855696U
Authority: CN
Inventors: 林寒暾
Original assignee: XIAMEN EGRET PRECISION MACHINERY CO Ltd
Current assignee: XIAMEN EGRET PRECISION MACHINERY CO Ltd
Priority date: 2012-04-27
Filing date: 2012-04-27
Publication date: 2012-11-21
Anticipated expiration: 2022-04-27

Abstract

The utility model discloses a combined type cutter for fine boring stepped holes. The combined type cutter comprises a main cutter rod, two auxiliary cutter rods and two cutter blades. Two screwed holes are formed at the front part of the main cutter rod, the axes of the two screwed holes are perpendicular to the axis of the main cutter rod, and front end faces of the two screwed holes are parallel to the axis of the main cutter rod. One end of each auxiliary cutter rod is provided with external screw threads, the other end of each auxiliary cutter rod is provided with an end face for mounting cutter blades, threaded holes are formed on the end faces of the auxiliary cutter rods for mounting the cutter blades, and the two auxiliary cutter rods are arranged on two threaded holes on the front part of the main cutter rod through external screw threads respectively and fastened through nuts. The two cutter blades are fastened on cutter blade mounting end faces of the two auxiliary cutter rods through screws respectively, the front end faces of the two screw holes can be step-shaped, and preferably the two cutter blades are both triangular cutter blades. The combined type cutter for fine boring stepped holes can effectively improve processing efficiency of a machine tool and simultaneously well guarantee coaxial degree of fine bored stepped holes.

Description

A kind of modular cutting tool assembly of right boring shoulder hole

Technical field

The utility model relates to machine tool, especially a kind of modular cutting tool assembly of right boring shoulder hole.

Background technology

In existing machined field, when the shoulder hole of right boring such as accompanying drawing 1 said workpiece, generally to use two fine boring cutters; After processing hole A to fine boring cutter with one; Change another fine boring cutter machining hole B again, because the clamping error of two fine boring cutters is added the error that equipment and cutter itself exists; In reality processing, be difficult to make the axiality of hole A and hole B to remain in the 0.05mm; On the other hand, owing to increase the time of changing cutter, also influence the working (machining) efficiency of lathe.

The utility model content

The technical problem that the utility model will solve provides a kind of modular cutting tool assembly of right boring shoulder hole, effectively improves the working (machining) efficiency of lathe, can better guarantee simultaneously the axiality of shoulder hole after the right boring.

For achieving the above object; The technical scheme of the utility model is: a kind of modular cutting tool assembly of right boring shoulder hole, comprise operator bar, two secondary knife bars, two blades, and the front portion of operator bar is provided with two axis and the perpendicular screwed hole of operator rod axis; The front end face of two screwed holes parallels with the axis of operator bar; One end of secondary knife bar has external screw thread, and the other end of secondary knife bar is provided with the end face that blade is installed, and the end face that said secondary knife bar is installed blade is provided with screwed hole; Two secondary knife bars utilize external screw thread to be contained on two anterior screwed holes of operator bar and with nut respectively and tighten up, and two blades are locked on the blade installation end face of two secondary knife bars with screw respectively.

Further improve, the front end face of said two screwed holes is stairstepping, can increase the adjusting range of two blade relative positions, and it is bigger to make the utility model be suitable for the range of work.

Preferred described two blades are triangular blade.

Preferred said two blade front end faces are 89 degree with the axis angle of operator bar.

The utility model is contained on the operator bar through secondary knife bar owing to two right boring blades jointly; Therefore cutter of clamping just can right boring goes out the shoulder hole of workpiece; Effectively improve the working (machining) efficiency of lathe, avoid the accumulated error of twice clamping cutter right boring shoulder hole appearance simultaneously, can better guarantee the axiality of shoulder hole; In the actual processing, the axiality of workpiece shoulder hole can guarantee in 0.05mm.

On the other hand; Two secondary knife bars are to utilize external screw thread to be contained on the perpendicular screwed hole of two anterior axis of operator bar and operator rod axis and with nut respectively to tighten up; Therefore two secondary knife bars can be adjusted at relative position radially with the operator bar, and just the relative position of two right boring blades can be adjusted and adapt to the shoulder hole of processing different workpieces.

Description of drawings

Fig. 1 is known a kind of cutaway view that has the shoulder hole workpiece;

Fig. 2 is the utility model vertical view;

Fig. 3 is that the secondary knife bar of the utility model is overlooked enlarged drawing;

Fig. 4 is the relative position figure that the utility model is in machining state and workpiece.

The specific embodiment

Below in conjunction with accompanying drawing and concrete embodiment the utility model is done further explain.

Fig. 1 is to shown in Figure 3; A kind of modular cutting tool assembly of right boring shoulder hole; Comprise the secondary knife bar of operator bar 1, two 2, two blades 3; The front portion of operator bar 1 is provided with two axis and parallels with the front end face 111,121 of perpendicular 11,12, two screwed

holes

11,12 of screwed hole of bar 1 axis of operating and the axis of operator bar 1, and an end of secondary knife bar 2 has external screw thread 21; The other end of secondary knife bar 2 is provided with the end face 22 that blade is installed; The end face 22 that said secondary knife bar 2 is installed blades is provided with 221, two secondary knife bars 2 of screwed hole and utilizes external screw thread 21 to be contained on anterior two screwed

holes

11,12 of operator bar 1 respectively and tighten up with nut 4, and two blades 3 are locked on the blade installation end face 22 of two secondary knife bars 2 with screw 31 respectively.

The front end face 111,121 of said two screwed

holes

11,12 is stairstepping and distributes.

Described two blades 3 are triangular blade.

Preferred said two blade 3 front end faces are 89 degree with the axis angle of operator bar 1.

Shown in Figure 4; The blade 3 that is in the front begins the hole A of right boring workpiece earlier, and behind the intact hole A of right boring, the blade 3 that is in the back begins right boring hole B again until completion of processing; Because two blades 3 are contained on the operator bar 1 through secondary knife bar 2 jointly, so intact hole A and the hole B of right boring has axiality preferably.

The blade position of the utility model can also be adjusted, and concrete method of adjustment is to unclamp nut 4 earlier, revolute pair knife bar 2 arrival desired locations, and then locking nut 4.

Below only be preferred embodiment of the utility model, the change that those skilled in the art does to be equal to by claim all falls into the protection domain of this case.

Claims

1. the modular cutting tool assembly of a right boring shoulder hole; Comprise operator bar, two secondary knife bars, two blades; It is characterized in that: the front portion of operator bar is provided with two axis and the perpendicular screwed hole of operator rod axis, and the front end face of two screwed holes parallels with the axis of operator bar, and an end of secondary knife bar has external screw thread; The other end of secondary knife bar is provided with the end face that blade is installed; The end face that said secondary knife bar is installed blade is provided with screwed hole, and two secondary knife bars utilize external screw thread to be contained on two anterior screwed holes of operator bar and with nut respectively and tighten up, and two blades are locked on the blade installation end face of two secondary knife bars with screw respectively.

2. the modular cutting tool assembly of a kind of right boring shoulder hole according to claim 1 is characterized in that: the front end face of said two screwed holes is stairstepping.

3. the modular cutting tool assembly of a kind of right boring shoulder hole according to claim 1 is characterized in that: described two blades are triangular blade.

4. according to the modular cutting tool assembly of each described a kind of right boring shoulder hole of claim 1 to 3, it is characterized in that: said two blade front end faces are 89 degree with the axis angle of operator bar.