CN201394658Y

CN201394658Y - Finishing tool for processing inner hole

Info

Publication number: CN201394658Y
Application number: CN 200920102765
Authority: CN
Inventors: 孟祥俊; 刘开明; 刘承东; 王安宇; 王立峰
Original assignee: TAIYUAN COAL GASIFICATION CO Ltd
Current assignee: TAIYUAN COAL GASIFICATION CO Ltd
Priority date: 2009-05-12
Filing date: 2009-05-12
Publication date: 2010-02-03
Anticipated expiration: 2019-05-12

Abstract

The utility model relates to a cutting tool, in particular to a finishing tool for processing inner hole. The finishing tool solves the problems of the welded cutting tool for processing workpieces with inner holes, such as low utilization rate, poor flexibility and poor practicability. The finishing tool comprises a tool base, a tool holder and a rectangular tool bit, wherein a holder mounting via-hole is formed in the tool base along the axial direction; a holder location thread hole and a location thread pin are arranged above the tool base; the tool holder penetrates the tool base; a radial annular location slot is formed on the tool holder along the axial direction; one end of the tool holder is milled to form a mounting surface; a protruding post is arranged on the mounting surface;a via-hole is formed at the center of the rectangular tool bit; the rectangular tool bit is connected with the tool holder through the via-hole and the protruding post; a pressing rod is arranged on the tool holder for blocking the rectangular tool bit; and the pressing rod is connected with the tool holder through a location screw. The finishing tool has the advantages of prolonged service life,reduced storage varieties, lowered production cost, greatly reduced cost per year, doubled or tripled processing efficiency, lowered labor intensity, and high popularization value.

Description

A kind of endoporus finishing tool

Technical field

The utility model relates to a kind of cutter, is specially a kind of endoporus finishing tool.

Background technology

Known, machining industry adds man-hour employed cutter and is generally brazed shank tool carrying out endoporus, and promptly knife bar and cutter head are welded as a whole.When this cutter is applied in the mechanical processing industry of non-batch process, when the processing work size was different, its shortcoming was: 1. the change of knife bar and cutter head welding back cutting angle need be changed cutter, or carries out sharpening; When 2. processing the different depth endoporus, need change the cutter of different length knife bar for guaranteeing machining accuracy; 3. after knife bar and cutter head welding back cutter parts were forged a knife or collapsed cutter, cutter head and knife bar were together scrapped, and can not reuse.In a word, in manufacturing enterprise's processing industry attached, non-batch process, hole depth in the workpiece, vary in diameter are bigger, the conventional tool of using cutter head and knife bar to be welded as a whole, a kind of workpiece of every processing needs standby one cutter, and knife bar, cutter head are changed frequent, not only increase the cutter stand-by cost, and increased labor strength, reduced operating efficiency.

Summary of the invention

The utility model is in order to solve the mechanical processing industry attached, non-batch process in manufacturing enterprise, adopt during hole workpiece in the processing existing traditional welding type cutter exist cutter head, knife bar change frequent, utilization rate is low and problem such as inefficiency, and a kind of endoporus finishing tool is provided.

The utility model is to adopt following technical scheme to realize: a kind of endoporus finishing tool, the rectangle cutter head that comprises tool rest, knife bar and be positioned at knife bar one end, have knife bar installation through hole in the tool rest and along its axial direction, the tool rest top has at interval with knife bar the knife bar positioning spiro pit that through hole is communicated with is installed, and is inserted with the positioning threads pin in the knife bar positioning spiro pit; Knife bar runs through and is arranged in the tool rest, is interval with the annular radial locating slot that cooperates with the positioning threads pin ends on the knife bar and along its axial direction; Knife bar one end mill has been cut installed surface, and installed surface is provided with projection, and rectangle cutter head center has through hole, and the rectangle cutter head is connected with knife bar by through hole, projection; The movable setting with rectangle cutter head one side forms the depression bar that stops on the knife bar, and depression bar is connected with knife bar by dog screw.

In order further to optimize structure of the present utility model, improve its function, described projection and knife bar are connected as a single entity, and perhaps projection is for embedding the screw of knife bar; On the described knife bar and the other end relative with the rectangle cutter head have the cutter head housing screw that cutter head is installed through hole and played the role of positioning, low speed steel or white steel knife head can be installed in this cutter head installing hole, and with the cutter head housing screw it is held out against in its side, like this, the knife bar two ends can be installed different cutter heads respectively, the direction that only need adjust knife bar during use gets final product, and has further enlarged the scope of application of this cutter; On the described knife bar and be positioned at the groove that endwisely slips that each positioning threads pin lower end has perforation, slide before and after in the knife bar installing hole of knife bar at tool rest, when regulating effective active length of knife bar, positioning threads pin ends sliding tray vertically moves; Described tool rest below has the axial mounting groove that cooperatively interacts with lathe, is convenient to whole cutter positioning is compressed on lathe and with tool rest and knife bar.

Compare with traditional welding type cutter, the utlity model has following advantage:

1, knife bar can be installed front and back slip in the through hole by the knife bar in tool rest, makes knife bar length satisfy under the prerequisite of requirement on machining accuracy, realizes adjustable;

2, cutter head and knife bar flexibly connect by projection, depression bar, dog screw, Stability Analysis of Structures, simple, and cutter head is easily changed, and four basils of cutter head are rotatable recycles, and knife bar is reusable;

3, cutter head can be adjusted in the knife bar end, and tool inclination angle is changed, and it is stressed good to cut, and working angles is steady, and the machined surface roughness precision obviously improves; Because cutting edge inclination increases, reduce cutting resistance and cutting deformation; The edge of a knife can rotate in cutter hub, and center cutter height, cutting edge inclination, anterior angle, relief angle can be adjusted, and is easy to preferably arrive the optimal process angle;

4, the cutter head of different purposes is equipped with at the knife bar two ends respectively, only need adjust the direction of knife bar, can process different workpieces, has further enlarged the scope of application of this cutter;

In a word, use cutter described in the utility model, prolonged the service life of cutter, reduce the deposit kind of cutter, reduce production costs, expection will make the kind of existing cutter reduce 10 kinds, and the life-span of cutter extends to two months by present average two weeks, can save a large amount of expenses every year thus, simultaneously, working (machining) efficiency can be brought up to original two to three times, reduce working strength of workers, have certain popularization value.

Description of drawings

Fig. 1 is the structural representation of tool rest described in the utility model

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

Fig. 3 is the structural representation of knife bar described in the utility model

Fig. 4 is the vertical view of Fig. 3

Among the figure: 1-tool rest, 2-knife bar, 3-rectangle cutter head, the 4-knife bar is installed through hole, 5-knife bar positioning spiro pit, 6-positioning threads pin, 7-annular radial locating slot, 8-installed surface, 9-projection, the 10-through hole, 11-depression bar, 12-dog screw, the 13-cutter head is installed through hole, 14-cutter head housing screw, the 15-groove that endwisely slips, the axial mounting groove of 16-.

The specific embodiment

A kind of endoporus finishing tool, comprise tool rest 1, knife bar 2 and the rectangle cutter head 3 that is positioned at knife bar one end, as shown in Figure 1, 2, have knife bar installation through hole 4 in the tool rest 1 and along its axial direction, tool rest 1 top has at interval with knife bar the knife bar positioning spiro pit 5 that through hole 4 is communicated with is installed, be inserted with positioning threads pin 6 in the knife bar positioning spiro pit 5, tool rest 1 below has the axial mounting groove 16 that cooperatively interacts with lathe; Shown in Fig. 3,4, knife bar 2 runs through and is arranged in the tool rest 1, have annular radial locating slot 7 with positioning threads pin 6 tip engages at interval on the knife bar 2 and along its axial direction, on the knife bar 2 and be positioned at the groove 15 that endwisely slips that each positioning threads pin 6 lower ends have perforation; Knife bar 2 one end mills have been cut installed surface 8, and installed surface 8 is provided with projection 9, and projection 9 is connected as a single entity with knife bar 2, and perhaps projection 9 is for embedding the screw of knife bar, and rectangle cutter head 3 centers have through hole 10, and rectangle cutter head 3 is connected with knife bar 2 by through hole 10, projection 9; The movable setting with rectangle cutter head 3 one sides forms the depression bar 11 that stops on the knife bar 2, and depression bar 11 is connected with knife bar 2 by dog screw 12.On the knife bar 2 and the other end relative with rectangle cutter head 3 have the cutter head housing screw 14 that cutter head is installed through hole 13 and played the role of positioning.

Carry out workpiece and add man-hour, knife bar is penetrated in the knife bar installing hole of tool rest, according to the machining hole degree of depth with the knife bar length adjustment to correct position, the positioning threads pin on the tool rest is aimed at annular radial locating slot on the knife bar, carry out pretension then, dead knife pole length position; Then with the cutter overall fixed to lathe, the alloy cutter head that grinds is installed, rotary cutter is tightened dog screw to suitable position again, makes depression bar play location, pressuring action to cutter head, adjust before and after the cutter head behind the angle by rotating knife bar, by the axial mounting groove of tool rest below and cooperating of lathe, tool rest and knife bar are compressed, be fixed on the lathe, and the positioning threads pin on the locking tool rest, the cutter adjustment finishes.

Claims

1, a kind of endoporus finishing tool, comprise tool rest (1), knife bar (2) and the rectangle cutter head (3) that is positioned at knife bar one end, it is characterized in that in the tool rest (1) and have knife bar through hole (4) is installed along its axial direction, tool rest (1) top has at interval with knife bar the knife bar positioning spiro pit (5) that through hole (4) is communicated with is installed, and is inserted with positioning threads pin (6) in the knife bar positioning spiro pit (5); Knife bar (2) runs through and is arranged in the tool rest (1), and knife bar (2) is gone up and is interval with annular radial locating slot (7) with positioning threads pin (6) tip engages along its axial direction; Knife bar (2) one end mills have been cut installed surface (8), and installed surface (8) is provided with projection (9), and rectangle cutter head (3) center has through hole (10), and rectangle cutter head (3) is connected with knife bar (2) by through hole (10), projection (9); Knife bar (2) is gone up movable the setting with rectangle cutter head (3) one sides and is formed the depression bar (11) that stops, depression bar (11) is connected with knife bar (2) by dog screw (12).

2, a kind of endoporus finishing tool according to claim 1 is characterized in that projection (9) and knife bar (2) are connected as a single entity, and perhaps projection (9) is for embedding the screw of knife bar.

3, a kind of endoporus finishing tool according to claim 1 and 2 is characterized in that knife bar (2) is gone up and the other end relative with rectangle cutter head (3) has the cutter head housing screw (14) that cutter head is installed through hole (13) and played the role of positioning.

4, a kind of endoporus finishing tool according to claim 1 and 2 is characterized in that knife bar (2) is last and is positioned at the groove that endwisely slips (15) that each positioning threads pin (6) lower end has perforation.

5, a kind of endoporus finishing tool according to claim 1 and 2 is characterized in that tool rest (1) below has the axial mounting groove (16) that cooperatively interacts with lathe.