CN201744920U

CN201744920U - Roller burnishing tool for machining excircle, R surface and end surface

Info

Publication number: CN201744920U
Application number: CN2010201750021U
Authority: CN
Inventors: 王帅; 石建; 邱岩; 杨佳天; 李学志; 仇锦红; 张杨; 徐进生
Original assignee: SHENYANG MACHINE TOOLS PLANT NO 1
Current assignee: SHENYANG MACHINE TOOLS PLANT NO 1
Priority date: 2010-04-30
Filing date: 2010-04-30
Publication date: 2011-02-16
Anticipated expiration: 2020-04-30

Abstract

The utility model discloses a roller burnishing tool for machining an excircle, an R surface and an end surface, which comprises a roller head and a tool shank, wherein the roller head and the tool shank are arranged on a tool rest of a lathe. The roller burnishing tool is characterized in that the head of the tool shank is an inclined tubular bearing block integrated with a shank body into a whole; the included angle alpha between the inclined tubular axial line and the axial line of the shank body is 45 degrees; a through hole is arranged at the lower part of the bearing block and is C-shaped; the opening direction of the C-shaped through hole and the direction of the roller head are positioned on the same side; a thrust bearing and a radial bearing are sequentially arranged on a shaft of a disk-shaped roller head; a gasket is arranged between bearings; and two ends of the bearings are fixed on the bearing block at the head part of the tool shank by two positioning covers. The utility model has the beneficial effects that the roller burnishing tool integrates the functions of the excircle, the R surface and the end surface of a processing workpiece, has compact structure and is convenient to use. Compared with a process of respectively using the traditional three hobbing cutters, the utility model saves labor force, physical materials and time which are contained in the processing procedure and remarkably reduces the processing cost of the workpieces.

Description

The Barreling tool of processing excircles, R face and end face

Technical field

The utility model relates to lathe tumbling machining tool, specifically can processing work such as a Barreling tool of sucker rod neck cylindrical, R face and end face.

Background technology

Because the machined surface of machining has the limit, the turning knife mark that promptly has so-called peak and valley partly to form on roughness.Therefore, not only on performances such as mechanical strength, can go wrong, and have influence on the attractive in appearance of profile.Therefore, generally also to carry out following processing: after machining, implement rolling and processing, improve surface roughness significantly, thereby make as surface as the minute surface smoothly to workpiece.

Rolling and processing is: use roller to roll the metal surface, " part at peak " flattened, make machined surface level and smooth, this is a kind of of plastic working method.It is different with grinding, can improve surface roughness at short notice, and makes the surface because of work hardening, so the mechanical strength of machined surface also is improved, has higher durability, mar proof.

At present, the sucker rod that sucker rod manufacturing enterprise produces, the breakage problem that ubiquity causes because of the problem of sucker rod neck surface roughness, case hardness and end face run-out, this problem is a great problem of the whole sucker rod industry of puzzlement.Each sucker rod manufacturing firm drops into very big manpower and materials and repairs neck, as process or use sand papering again on lathe, to reduce sucker rod neck surface roughness, improves its case hardness with high-frequency quenching.Though the such finishing of process can solve problem at that time, process velocity is slow, the cost height.

In addition, three class hobboing cutters of existing special processing excircles, end face or R face in processing industry still do not have the Barreling tool of processing excircles, R angle and end face simultaneously at present.As shown in Figure 6, it is a kind of rolling tools of special processing excircles groove.Its roller-head is a rolling wheel, supports by mandrel, adds to apply certain radial load to the workpiece contact man-hour and come the roll extrusion workpiece.The reaction force that rolling wheel is subjected to need lean on the disk spring balance.This instrument can only bearing radial force, the situation that milled head can not rotate will occur when being subjected to axial force, and the time can be ground bad instrument once long.

Summary of the invention

For solving the problems of the technologies described above, the purpose of this utility model be to provide a kind of can integrated processing excircles, the Barreling tool of R face and end face.

The Barreling tool of processing excircles of the present utility model, R face and end face, comprise roller-head and pad on the toolframe that is placed in lathe, it is characterized in that the pad head for the sloped tubular bearing block of handle body one, sloped tubular axis and handle body axis angle α are 45 °, the bearing block bottom has through hole c-shaped, and the opening direction of C shape through hole and roller-head are same side direction; Thrust bearing and journal bearing are installed on the axle of disc roller-head successively, are provided with packing ring, bearing two ends between the bearing and are fixed on the bearing block of pad head by two location lids.

During tool processes, the processing thrust that puts on workpiece passes to pad by bearing with reaction, makes pad C shape through hole distortion off-load, avoids the damage of roller-head and bearing.

Compared with prior art, the design's beneficial effect is: it integrates the function of processing excircles, R face and end face, and compact conformation is easy to use.Compare with the technology that will use existing three kinds of hobboing cutters respectively, save human and material resources and time that manufacturing procedure comprises, significantly reduce the processing cost of workpiece.

Description of drawings

Fig. 1 is the Barreling tool structural representation of this novel one;

Fig. 2 is the Barreling tool right view of this novel one;

Fig. 3 is the effect schematic diagram of this novel processing sucker rod cylindrical;

Fig. 4 is the effect schematic diagram of this novel processing sucker rod R face;

Fig. 5 is the effect schematic diagram of this novel processing sucker rod end face;

Fig. 6 is the schematic diagram of processing excircles trough roller press tool in the prior art.

The specific embodiment

The Barreling tool of the design's processing excircles, R face and end face, referring to Fig. 1, R position among Fig. 1 is seen for semicircle in the edge 41 that it is characterized in that being discoidal roller-head 4, the radius of semicircular edge 41 is less than the radius of workpiece circular arc; Thrust bearing 8 and journal bearing 9 are installed on the disc roller-head axle 42 successively, two bearings in the middle of shown in Figure 1 being positioned at are journal bearings 9 of carrying radial load, two bearings that are positioned at two are thrust bearings 8 of carrying axial force, be provided with

packing ring

2,3 between four bearings, and with bearing fixing on the bearing block 11 of pad 1 head, the outside of two thrust bearings 8 is respectively to go up the location cover 5 and locate down and cover 7, last location cover 5 be fixed in the upper end annular groove of bearing block 11, the location is covered 7 and is fixed in the lower end annular groove of bearing block 11 down, roller-head axle lower end 42 is fixed by nut 6; Angle β=35～55 of the axis of disc roller-head and workpiece rotation °, optimum angle β is 45 °, is positioned at the bottom C shape through hole 12 of bearing block at pad, the opening direction of C shape through hole 12 and roller-head are same side direction.During tool processes, the processing thrust that puts on workpiece passes to pad by bearing with reaction, makes pad C shape through hole distortion off-load, avoids the damage of roller-head and bearing.For example, when the workpiece external diameter was the φ 25mm left and right sides, pressing force was 1.0～2.0kN, C deformation shape 0.03～0.06mm.

The shape of pad 1 is as shown in Figure 1: pad 1 head of column handle body is the sloped tubular bearing block with handle body one, there is annular groove at the bearing block two ends, sloped tubular axis and handle body axis angle α are 45 °, C shape through hole 12 is arranged at the bearing block bottom, through-bore axis and pad 1 axis normal and off-centre, the opening direction of C shape is opposite with the bearing block inclined plane.

Referring to Fig. 2, roller-head 4 is disc, its edge semicircular in shape, and the radius of this edge semicircle is less than the radius of processing work circular arc; The roller-head center of circle one side is the roller-head axle 42 with the disk right angle intersection.

Job state:

Roll excircle of workpiece, referring to Fig. 3, disc roller-head and workpiece contact point are A.

When rolling the R face, roller-head and workpiece contact point are the circular arc between A point and the C point, and along with starting point of rolling the R face and terminal point, contact point B is also along with change, referring to Fig. 4.

When rolling end face, referring to Fig. 5, roller-head and workpiece contact point are C.

Roller-head axle 42 does not need power, and then one runs up because of the workpiece rotation drives roller-head.The power of workpiece reaction on roller-head passes to pad by bearing, comes the balance reaction force by pad " C " shape through hole off-load structure with micro-strain then.The pad band roller-head and is moved at lathe upper edge X-axis, Z axle with knife rest.

Through the sucker rod neck surface after the tumbling of this instrument, surface roughness reaches 0.4～0.8 μ m, and case hardness improves HB1～5 degree on original basis, the sucker rod quality is obviously improved, in conjunction with the raising of product surface hardness, thereby prolonged the service life of sucker rod.

Claims

1. the Barreling tool of a processing excircles, R face and end face, comprise roller-head and pad on the toolframe that is placed in lathe, it is characterized in that the pad head for the sloped tubular bearing block of handle body one, sloped tubular axis and handle body axis angle α are 45 °, the bearing block bottom has through hole c-shaped, and the opening direction of C shape through hole and roller-head are same side direction; Thrust bearing and journal bearing are installed on the axle of disc roller-head successively, are provided with packing ring, bearing two ends between the bearing and are fixed on the bearing block of pad head by two location lids.

2. processing excircles according to claim 1, the Barreling tool of R face and end face, it is characterized in that: four bearings are installed on the disc roller-head axle (42), and be fixed in the tubular shafts bearing (11) of pad (1) head, two journal bearings (9) that bearing is the carrying radial load in the middle of wherein being positioned at, two bearings that are positioned at two ends are thrust bearings (8) of carrying axial force, the outside of two thrust bearings is respectively to go up location lid (5) and locate lid (7) down, last location lid (5) and following location lid (7) are fixed on the two ends of bearing block (11), be provided with packing ring between four bearings, roller-head axle (42) lower end is fixing by nut (6); Angle β=35～55 of the axis of disc roller-head and workpiece rotation °.

3. the Barreling tool of processing excircles according to claim 1, R face and end face, it is characterized in that: the shape of pad (1): pad (1) head of column handle body for the sloped tubular bearing block of handle body one, there is annular groove at the bearing block two ends, 45 ° of roller-head axle (42) axis and handle body axis alpha angles, C shape through hole (12) is arranged at the bearing block bottom, through-bore axis and pad (1) axis normal and off-centre, the opening direction of C shape through hole (12) is opposite with the bearing block inclined plane.

4. the Barreling tool of processing excircles according to claim 1, R face and end face is characterized in that: roller-head (4) is disc, its edge semicircular in shape, and the radius of this edge semicircle is less than the radius of processing work circular arc; The roller-head center of circle one side is the roller-head axle (42) with the disk right angle intersection.