CN102029420B

CN102029420B - Cutter for machining eccentric groove

Info

Publication number: CN102029420B
Application number: CN2010105634698A
Authority: CN
Inventors: 颜川; 闻革
Original assignee: Longchang Shanchuan Precision Welded Tube Co Ltd
Current assignee: Longchang Shanchuan Precision Welded Tube Co Ltd
Priority date: 2010-11-29
Filing date: 2010-11-29
Publication date: 2012-07-04
Anticipated expiration: 2030-11-29
Also published as: CN102029420A

Abstract

The invention discloses a cutter for machining an eccentric groove, comprising a stand, a motor, a hollow main shaft and a belt pulley, wherein the hollow main shaft is arranged on the stand through a bearing seat and a bearing; the belt pulley is connected with the motor and the hollow main shaft; the hollow main shaft is also provided with a knife holding mechanism; and the stand is also provided with a material clamping mechanism. In the invention, a workpiece is fixed and a knife rotates, therefore the rotational deformation of the workpiece is prevented and machining quality is ensured; and different eccentric grooves can be machined by adjusting the position of the workpiece in an elastic clamping sleeve of the material clamping mechanism, the dislocation of the workpiece and a positioning rod of the material clamping mechanism in a radial direction and the position of the knife positioned on the knife holding mechanism. The invention has good universality, high machining efficiency, and the like.

Description

The cutter of processing eccentric grove

Technical field

The present invention relates to a kind of cutter that is used to process eccentric grove.

Background technology

In machining, as depicted in figs. 1 and 2 at present, often meet on slender axles 30 and need cut eccentric grove 30a; This type of part such as draw ratio >=25; If use engine lathe to cooperate eccentric fixture processing, not only versatility is relatively poor because eccentric grove in axial position and the offset difference all need change different eccentric fixtures; And part is out of shape in the lathe high speed rotating seriously, influences crudy.

Summary of the invention

The objective of the invention is to the above-mentioned deficiency to prior art, a kind of cutter that is exclusively used in the processing eccentric grove is provided, it has, and versatility is good, advantage of high processing efficiency, and can guarantee crudy.

For achieving the above object; The cutter of processing eccentric grove of the present invention; Comprise board, motor, be located at hollow main shaft on the board, be connected the belt pulley of motor and main shaft, it is characterized in that on main shaft, also being provided with and hold cutter mechanism, on board, also be provided with feeding clip mechanism through bearing block and bearing; Said hold cutter mechanism comprise the cutterhead that is fixed in main shaft one end, the mount pad that is fixed in the cutterhead end face, the bearing through two ends be loaded on screw mandrel in the mount pad, with the slide of screw mandrel through being threaded; The screw mandrel two ends are provided with the shoulder of axial location, are provided with chute in the slide, and a cutting knife is loaded in the chute through securing member; Said feeding clip mechanism comprises positioning seat and the material folding mount pad that is individually fixed on the board of main shaft two ends, and the material folding mount pad is provided with screw mandrel through bearing with to hold cutter mechanism adjacent in the material folding mount pad; The screw mandrel two ends are provided with the shoulder of axial location; The slide that has an installing hole is connected with screw mandrel through screw thread, in this installing hole, is provided with elastic jacket, the front end of elastic jacket and to hold cutter mechanism adjacent and be provided with at least three axial profile grooves at its front end; And be provided with the pre-large post-small conical surface that matches at elastic jacket and installing hole front end; The rear end of elastic jacket is positioned at outside the slide, and through screw thread thread bush is housed in its back-end, is installed with spanner on the thread bush; On positioning seat, be provided with backstay through screw thread and nut; The front end of backstay is positioned at main shaft; Backstay and elastic jacket axially identical, the direction of cutting knife is axial vertical with backstay and elastic jacket, the screw mandrel of material folding mount pad axially and backstay axial vertical.

During use, in the end insertion elastic jacket with workpiece, rotate thread bush through spanner; The front end of elastic jacket receives the extruding of the slide installing hole front end conical surface and shrinks, and workpiece is clamped, and is adjusting backstay in axial position; The end face of itself and workpiece is held out against, rotate the screw mandrel in the material folding mount pad, make workpiece and backstay radially produce certain dislocation; Restart motor, drive the cutting knife rotation, can process eccentric grove through belt pulley, main shaft, cutterhead;

As further improvement of the present invention, the screw mandrel end of being located in the material folding mount pad is installed with handle; Be convenient to rotary screw rod;

As further improvement of the present invention, on the material folding mount pad, also be provided with axial perpendicular dial gauge with elastic jacket; Can directly read the degree of depth of grooving;

In sum, use the present invention, workpiece is motionless, and cutter rotates, and has avoided the rotational deformation of workpiece, can guarantee crudy; In radially the dislocation and the position of cutting knife, can process different eccentric groves through adjustment position, workpiece and the backstay of workpiece in elastic jacket, have that versatility is good, advantage of high processing efficiency.

Description of drawings

Fig. 1 is the front view of the workpiece of band eccentric grove.

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

Fig. 3 is the front view of the embodiment of the invention.

Fig. 4 is the vertical view of Fig. 3.

Fig. 5 is the B-B cutaway view of Fig. 3.

Fig. 6 is the I place enlarged drawing of Fig. 3.

The specific embodiment

Below in conjunction with accompanying drawing the present invention is done further detailed explanation.

Extremely shown in Figure 6 like Fig. 3; The cutter of this processing eccentric grove; Comprise board 1, motor 2, be located at hollow main shaft 5 on the board 1, be connected the belt pulley 6 of motor 2 and main shaft 5, on main shaft 5, also be provided with and hold cutter mechanism 7, on board 1, also be provided with feeding clip mechanism through bearing block 3 and bearing 4; Said hold cutter mechanism 7 comprise through locking nut 27 be fixed in main shaft 5 one ends cutterhead 8, be fixed in the square box shaped mount pad 9 of cutterhead 8 end faces, bearing 10 through two ends be loaded on screw mandrel 11 in the mount pad 9, with the slide 12 of screw mandrel 11 through being threaded; Screw mandrel 11 two ends are provided with the shoulder of axial location, and two shoulders contact with the end face of bearing 10 respectively, and screw mandrel 11 can not move axially; Be provided with chute in the slide 12, a cutting knife 13 is loaded in the chute through trip bolt 14; Said feeding clip mechanism comprises the positioning seat 15 and material folding mount pad 16 that is individually fixed on the main shaft 5 two ends boards 1; Material folding mount pad 16 is with to hold cutter mechanism 7 adjacent, and material folding mount pad 16 comprises the cover plate at base plate and two ends, in material folding mount pad 16, is provided with screw mandrel 17 through bearing 18; Screw mandrel 17 two ends are provided with the shoulder of axial location; Two shoulders contact with a cover plate end face of bearing 18 and material folding mount pad 16 respectively, and screw mandrel 17 can not move axially, and screw mandrel 17 ends are installed with handle 19; The slide 20 that has installing hole is connected 19 through screw thread with screw mandrel; In this installing hole, be provided with elastic jacket 21, the front end of elastic jacket 21 is with to hold cutter mechanism 7 adjacent and be provided with three axial profile groove 21a at its front end, and is provided with the pre-large post-small conical surface that matches at elastic jacket 21 and installing hole front end; The rear end of elastic jacket 21 is positioned at outside the slide 20; And through screw thread thread bush 22 is housed in its back-end, and be installed with spanner 23 on the thread bush 22, on material folding mount pad 16, also be provided with axial perpendicular dial gauge 24 with elastic jacket 21; On positioning seat 15, be provided with backstay 26 through screw thread and nut 25; The front end of backstay 26 is positioned at main shaft 5; Backstay 26 and elastic jacket 21 axially identical; The direction of cutting knife 13 is axial vertical with backstay 26 and elastic jacket 21, the screw mandrel 17 of material folding mount pad 17 axially and backstay 26 axial vertical.

During use, in the end insertion elastic jacket 21 with workpiece, rotate thread bush 22 through spanner 23; The front end of elastic jacket 21 receives the extruding of the slide 20 installing hole front end conical surfaces and shrinks, and workpiece is clamped, and adjusts backstays 26 in axial position through nut 25 again; The end face of itself and workpiece is held out against, turning handle 19, slide 20 makes the end face of gauge head contact skate 20 of dial gauge 24 along moving axially of screw mandrel 17; Be rotated further handle 19, make workpiece and backstay 26, can read displacement through dial gauge radially producing certain dislocation; Make workpiece eccentric with respect to the centre of gyration of cutting knife 13; Restart motor 2, drive cutting knife 13 rotations, can process eccentric grove through belt pulley 6, main shaft 5, cutterhead 8;

Use the present invention, workpiece is motionless, and cutter rotates, and has avoided the rotational deformation of workpiece, can guarantee crudy; In radially the dislocation and the position of cutting knife 13, can process different eccentric groves through adjustment position, workpiece and the backstay 26 of workpiece in elastic jacket 21, have that versatility is good, advantage of high processing efficiency.

Claims

1. cutter of processing eccentric grove; Comprise board, motor, be located at hollow main shaft on the board, be connected the belt pulley of motor and main shaft through bearing block and bearing; It is characterized in that on main shaft, also being provided with and hold cutter mechanism; On board, also be provided with feeding clip mechanism, said hold cutter mechanism comprise the cutterhead that is fixed in main shaft one end, the mount pad that is fixed in the cutterhead end face, the bearing through two ends be loaded on screw mandrel in the mount pad, with the slide of screw mandrel through being threaded, the screw mandrel two ends are provided with the shoulder of axial location; Be provided with chute in the slide, a cutting knife is loaded in the chute through securing member; Said feeding clip mechanism comprises positioning seat and the material folding mount pad that is individually fixed on the board of main shaft two ends, and the material folding mount pad is provided with screw mandrel through bearing with to hold cutter mechanism adjacent in the material folding mount pad; The screw mandrel two ends are provided with the shoulder of axial location; The slide that has an installing hole is connected with screw mandrel through screw thread, in this installing hole, is provided with elastic jacket, the front end of elastic jacket and to hold cutter mechanism adjacent and be provided with at least three axial profile grooves at its front end; And be provided with the pre-large post-small conical surface that matches at elastic jacket and installing hole front end; The rear end of elastic jacket is positioned at outside the slide, and through screw thread thread bush is housed in its back-end, is installed with spanner on the thread bush; On positioning seat, be provided with backstay through screw thread and nut; The front end of backstay is positioned at main shaft; Backstay and elastic jacket axially identical, the direction of cutting knife is axial vertical with backstay and elastic jacket, the screw mandrel of material folding mount pad axially and backstay axial vertical.

2. the cutter of processing eccentric grove as claimed in claim 1 is characterized in that the screw mandrel end of being located in the material folding mount pad is installed with handle.

3. according to claim 1 or claim 2 the cutter of processing eccentric grove is characterized in that on the material folding mount pad, also being provided with the axial perpendicular dial gauge with elastic jacket.