CN201432189Y

CN201432189Y - Ball rolling tool

Info

Publication number: CN201432189Y
Application number: CN2009203061567U
Authority: CN
Inventors: 蔡晓东; 沈洋西; 高喜发
Original assignee: MCC Shijiu Construction Co Ltd
Current assignee: China 19th Metallurgical Corp
Priority date: 2009-07-14
Filing date: 2009-07-14
Publication date: 2010-03-31
Anticipated expiration: 2019-07-14

Abstract

The utility model provides a ball rolling tool with good global rigidity for leveling metal surface in order to overcome the prior defects. The ball rolling tool comprises a ball (1) and a toolbar (2); one end of the toolbar (6) is provided with a groove (3); the inner side of the ball (1) is in rolling fit with a bearing (5) fixed in the groove (3); the outer side of the ball (1) is provided witha ring washer (2) fixed on the wall of the groove (3); and the outer side of the ball (1) is in sliding fit with the wall of a positioning hole (21) on the ring washer (2). The ball rolling tool is suitable for leveling tool marks on the surface of a part after cutting.

Description

The ball rolling cutter

Technical field

The utility model relates to a kind of smooth cutter in metal surface that is used for, especially a kind of ball rolling cutter.

Background technology

The roll extrusion cutter utilizes the cold plasticity characteristics of metal at the normal temperature state, by it surface of the work is applied certain pressure, making the workpiece surface metal produce plasticity flows, be filled in the original residual indentation trough, thereby the nao-and micro relief that makes surface of the work planishes and reaches the purpose that changes surface structure, mechanical property, shape and size, reaches polishing processing simultaneously and strengthens two kinds of purposes.

Shape by roll extrusion cutter functional component is divided into: ball rolling cutter and roller rolling press cutter.As shown in Figure 1, the ball rolling cutter generally includes the cylindrical shape cover of bearing in the knife bar, knife rod head groove and fixed axis thereof, parcel knife rod head, cover is fixed on the knife bar by screw thread and its bottom is narrowed the locating hole that constitutes ball gradually, ball is arranged in the chamber of cover and knife rod head formation, ball is inboard to be cooperated with the rolling of bearing, and the outside is slidingly matched with the location hole wall.During work, the ball outside is positioned at the outer part of cover direct contact workpiece surface and rolls and cooperates, and is inboard spacing by cooperating with the rolling of bearing, circumferentially by spacing with being slidingly matched of its location hole wall.Compared to the roller rolling press cutter, the ball contact area is little, and controllability is higher, is applicable to the accurate smooth of metal surface.

But because cover belongs to the thin-walled tube shape component that narrows of bottom, and in order to reduce sliding friction, extend to that wall thickness also reduces thereupon in the process of ball locating hole, therefore since result own limit its to ball spacing, support a little less than, easy deformation; Simultaneously, it is cylindrical that threaded engagement requires the cross section, and the knife bar cross section is generally rectangle, so knife bar is generally stepped ramp type, therefore because knife bar and the structural restriction of cover cause the cutter integral rigidity relatively poor.

The utility model content

In order to overcome existing deficiency, technical problem to be solved in the utility model provides the good ball rolling cutter of a kind of integral rigidity.

The technical scheme that its technical problem that solves the utility model adopts is: the ball rolling cutter, comprise ball, knife bar, knife bar one end is provided with groove, the inboard bearing element interior with being fixed on groove of described ball cooperates, described ball arranged outside has the ring washer that is fixed on the cell wall, and the ball outside is slidingly matched with the wall that is arranged on the locating hole on the ring washer.

The beneficial effects of the utility model are: groove seals by ring washer, avoided the use of thin-walled parts, avoided being threaded and caused changes of section, therefore the cutter integral rigidity of having avoided the structural restriction of cover to cause is relatively poor, for the employing of uiform section knife bar provides may.

Description of drawings

Fig. 1 is the front view of prior art;

Fig. 2 is a front view of the present utility model;

Fig. 3 is the A-A cutaway view of Fig. 2.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As Fig. 2, shown in Figure 3, ball rolling cutter of the present utility model, comprise ball 1, knife bar 6, knife bar 6 one ends are provided with groove 3, described ball 1 inboard be fixed on groove 3 in bearing 5 rollings cooperate, described ball 1 arranged outside has the ring washer 2 that is fixed on groove 3 walls, and ball 1 outside is slidingly matched with the wall that is arranged on the locating hole 21 on the ring washer 2.

Groove 3 is by ring washer 2 sealings, can surround the chamber that constitutes ball 1 by inwall, bearing 5, the ring washer 2 of groove 3, avoided the use of thin-walled cover as shown in Figure 1, the changes of section of having avoided cover to be threaded and to cause with knife bar, therefore the cutter integral rigidity of having avoided the structural restriction of cover to cause is relatively poor, for the use of uiform section knife bar provides may.Simultaneously, because the employing of uiform section knife bar, the wall thickness of groove 3 is bigger, and the axle 4 of bearing 5 supports better, so the support of 5 pairs of balls 1 of bearing is also better, and the roll extrusion cutter can obtain bigger permission tonnage, thereby improves working (machining) efficiency.

For fear of the wearing and tearing of 1 pair of groove 3 inwall of ball, concrete, described ring washer 2 inboards circumferentially are provided with vertically the ring washer cover 22 that extends along locating hole 21, and described ball 1 is positioned at ring washer 2 and ring washer cover 22, bearing 5 surrounds the chamber that constitutes.Therefore wear and tear and to guarantee the work of roll extrusion cuttves when too much by directly better ring washer 2.

Simultaneously, described groove 3 comprises the inboard bearing groove 31 and the ball grooves 32 in the outside, and the ring washer cover 22 of described ring washer 2 inserts in the ball grooves 32.Therefore can adapt to the different requirements of bearing 5 and 1 pair of groove 3 shape of ball, concrete, above-mentioned bearing groove 31 is rectangular through slot radially, and above-mentioned ball grooves is axial cylindrical groove.It is fixing that ring washer 2 inserts ball grooves 32 by ring washer cover 22, makes ring washer cover 22 to obtain better to support by cell wall; Simultaneously, fix by inserted mode, ring washer cover 22 is slidingly matched with ball grooves 32, and fixed form is easier.Certainly ring washer 2 also can be fixed by other modes.

The radial section of above-mentioned ball grooves 32 and ring washer cover 22 all is circular.Therefore, when reaching, the degree of wear of ring washer 2 maybe will reach when influencing surface of the work roll extrusion quality, just ring washer 2 can be changeed a corresponding angle works on, after all wearing and tearing on 21 circumference of the locating hole on the ring washer 2, the ring washer 2 that just need more renew, prolong the service life of ring washer 2 greatly, reduced use cost.

Owing to avoided the use of thin-walled cover, to the requirement reduction of the strength of materials, in order further to reduce the force of sliding friction between ring washer 2 and the ball 1, described ring washer 2 is copper ring washers.When reducing friction, also avoid the wearing and tearing of ball 1, improved crudy.

Concrete, above-mentioned bearing 5 is ball bearings.Compare with cylinder roller bearing, can be suitable for higher rotating speed, roll extrusion cutter operating efficiency is higher.

Above-mentioned inboard, the outside all vertically the definition, with the processing work homonymy be the outside, heteropleural be the inboard.

Claims

1. ball rolling cutter, comprise ball (1), knife bar (6), knife bar (6) one ends are provided with groove (3), the inboard bearing (5) interior with being fixed on groove (3) of described ball (1) rolls and cooperates, it is characterized in that: described ball (1) arranged outside has the ring washer (2) that is fixed on groove (3) wall, and ball (1) outside is slidingly matched with the wall that is arranged on the locating hole (21) on the ring washer (2).

2. ball rolling cutter as claimed in claim 1, it is characterized in that: described ring washer (2) is inboard circumferentially to be provided with the ring washer cover (22) that extends vertically along locating hole (21), and described ball (1) is positioned at ring washer (2) and ring washer cover (22), bearing (5) surrounds the chamber that constitutes.

3. ball rolling cutter as claimed in claim 2 is characterized in that: described groove (3) comprises the inboard bearing groove (31) and the ball grooves (32) in the outside, and the ring washer cover (22) of described ring washer (2) inserts in the ball grooves (32).

4. ball rolling cutter as claimed in claim 3 is characterized in that: the radial section of described ball grooves (32) and ring washer cover (22) all is circular.

5. ball rolling cutter as claimed in claim 1 is characterized in that: described ring washer (2) is the copper ring washer.

6. ball rolling cutter as claimed in claim 1 is characterized in that: described bearing (5) is a ball bearing.