CN2172367Y - Rolling steel ball retainer - Google Patents

Abstract

The utility model relates to a rolling steel ball retainer, which punches a plurality of holes on a continuous metal thin plate base material. The thin plate base material surrounding punching holes can be drawn by using a floating flower processing technique, causing the thin plate base material to project towards one direction to form an arc-shaped chamber for holding rolling bodies. The chamber is provided with an embedding hole whose diameter is correspondingly bigger than that of the rolling body and a limit hole whose diameter is correspondingly smaller than that of the rolling body. Each rolling body can be placed in the chamber from the embedding hole. Finally the thin plate base material embedded with rolling bodies can be coiled into a cylinder shape. The hole diameter of the embedding hole positioned on an inner ring face can be reduced to be correspondingly smaller than the diameter of each rolling body because the thin plate base material is circularly coiled, causing the rolling bodies to freely roll in the chamber.

Description

Rolling steel ball retainer

The utility model relates to a kind of rolling steel ball retainer, particularly about a kind of be the rolling steel ball retainer of base material with the sheetmetal.

The rolling steel ball retainer generally includes two track circles, one group for example rolling element and a retainer of ball or roller; This retainer has more and isolates each rolling element and make it to be evenly distributed in function between die holder guide pillar and guide pin bushing except that can avoiding the rolling element accidental.

The conventional construction device of rolling steel ball retainer is as described below:

1, earlier makes pipe shape stock 60 shown in Figure 1A by retainer required diameter metal that it is selected or plastic material;

2, use driling machine and tool to be drilled with several penetration holes wide outside and narrow inside 62 shown in Figure 1B along the perisporium of this tubular shape stock 60;

3, with rolling elements 64 such as ball that the steel ball retainer used or roller by run through 62 than major diameter direction penetration hole 62 inside of packing into, and terminate in the minor diameter opening (shown in Fig. 1 C) of penetration hole 62 the other ends;

4, as Fig. 1 D those shown, utilize gouge or electrothermal method to beat or ca(u)lk (Caulking) operation is filled out in welding etc. from imposing of this penetration hole 62 than the major diameter direction, make dwindling of penetration hole 62, freely roll to avoid rolling element 64 accidental in the load hole and can be held in the hole than the major diameter opening;

5, according to the made rolling steel ball retainer finished product 66 of above-mentioned operation, promptly shown in Fig. 1 E;

The conventional construction device of above-mentioned retainer mainly ties up to one and makes in advance and hole, fill out operations such as pearl and ca(u)lk on the base material cylindraceous, its major defect is that aperture processing can't be carried out simultaneously, product reject ratio height and manufacture cost can't effectively reduce etc., and details are as follows:

1, penetration hole 62 needs to use specific special device, because the kind and the size of rolling steel ball are various, therefore all need use different instruments instead when the rolling steel ball of producing variety classes or different specification size is protected special device, and is quite time-consuming bothersome.

2, be drilled with in penetration hole 62, except that the inside and outside opening that must have two different bores, the center line in existing palpus spaced at equal intervals and hole all needs the central axis 68 perpendicular to penetration hole 62, and constructional difficulties is higher altogether; Simultaneously must control its drilling depth by tool using, so as to forming a more small-bore opening that is positioned on penetration hole 62 internal faces, it will cause shortcoming, and as adjust improper or during negligence of operation, promptly can't this arc penetration hole wide outside and narrow inside of moulding, and rolling element also will make it to be held in the hole because of the interior wall opening of penetration hole 62 is excessive, causes whole group retainer all need scrap; Therefore, this drilling operating not only increases the degree of difficulty in the manufacturing, and the reject ratio of its manufactured good also can't effectively reduce.

3, each penetration hole 62 that is positioned on the curved surface must impose the ca(u)lk operation respectively, constructional difficulties degree height not only, and also comparatively time-consuming on making, so that its speed of production and production capacity all can't effectively promote.

This shows that the conventional construction device of above-mentioned rolling steel ball retainer still has many disappearances, real non-one kindhearted design need be improved.

It is the rolling steel ball retainer constructional device of base material with the sheetmetal that the purpose of this utility model is to provide a kind of, it can be after finishing whole procedures on the full wafer large size sheet material, cut according to required rules of retainer and size, not only construction is easy, and can save the operating time again.

Another purpose of the present utility model ties up in the rolling steel ball retainer constructional device that above-mentioned pattern is provided, and forms an arc chambers wide outside and narrow inside with sludge ice (Embossint) technology that stretches.

Rolling steel ball retainer described in the utility model is not only constructed easily, and does not have in the tradition system the not problem of easy-formation of tool wear and arc penetration hole; And but used thickness is that the sheet material of the tubular stock thickness about 1/3rd of traditional round is made the finished product with better structural strength, saved material and expense significantly.

It carries out punching out with continuous multiplex (MUX) or single worker via press machine on a flat sheet, the engineering time only is 1/5th of a conventional method, and processing also can effectively reduce manufacture cost fast.

It can implement one-stop operation on a flat sheet, so its size Control is accurate and stable, rolling element is difficult for getting rusty, and not only the product reject ratio is low, more can guarantee product quality.

It is quick to have above-mentioned construction, be easy to processing, this rolling steel ball retainer constructional device of advantages such as the product reject ratio is low and with low cost, tie up to and stamp out several internal diameters on the continuous sheetmetal host material and keep constant punching, and be folded between concavo-convex pair of opposite pressing mold with the sheetmetal that the sludge ice processing technique will have a punching, via compression moulding so as to the thin plate host material around the stretching punching, make it to raise up and form one in order to holding the arc chambers of rolling element, this arc chambers have one with respect to greater than the implantation hole and of rolling element diameter relatively less than the limiting holes of rolling element diameter; When the 3rd operation, each rolling element is inserted arc chambers inside by implanting the hole, limiting holes can prevent that then the indoor rolling element accident of implant cavity from dropping; To implant the thin plate host material volume circle moulding of rolling element at last, circle is rolled up because of the thin plate host material in the implantation hole that is positioned at inner ring surface is contracted to relatively less than the rolling element diameter its aperture thereupon, freely rolls so as to rolling element is held in the chamber.

The utility model is for achieving the above object, the concrete technological scheme that it is taked: a kind of is the rolling steel ball retainer of host material with the planar metal thin plate, comprise rolling steel ball and retainer, it is characterized by: the shape of this retainer is made several equidistant and be parallel to each other punchings by a planar metal thin plate upper punch; With this planar metal thin plate with several punchings so as to the thin plate host material around each punching that stretches, make it to raise up and form an arc chambers that can hold each rolling element in this rolling steel ball, this arc chambers have one relatively greater than the implantation hole and of this rolling element diameter relatively less than the limiting holes of this rolling element diameter; Again each rolling element is inserted each arc chambers inside by implanting the hole, this limiting holes can prevent that then the indoor rolling element accident of implant cavity from dropping; Wall with this position, implantation hole is rolled up round moulding as internal face with this thin plate base material, simultaneously, the two ends of this thin sheet like plate base material is fused, and is shaped to a pipe shape rolling steel ball retainer of having implanted rolling element.

Please know clearly and read the detailed description and the accompanying drawing thereof of following relevant the utility model one preferred embodiment, can further understand technology contents of the present utility model and purpose effect thereof; Relevant embodiment's accompanying drawing is:

Figure 1A to Fig. 1 D ties up to the manufacturing process schematic representation that a pipe closes the rolling steel ball retainer conventional construction device of processing on the host material;

Fig. 1 E fastens the finished product of stating the made rolling steel ball retainer that is implanted with rolling element of classical production process shown in Figure 1A to Fig. 1 D;

Fig. 2 ties up to the continuous manufacturing schematic flow sheet of the utility model rolling steel ball retainer of processing on the planar metal thin plate host material;

Fig. 2 A to Fig. 2 D system expression segmentation processing manufacturing process schematic representation shown in Figure 2;

The planar metal coil sheet circle that Fig. 2 E system expression will be implanted with rolling element becomes the finished figure of the rolling steel ball retainer of tubular shape;

Fig. 2 F is the plane outspread drawing of Fig. 2 E;

Fig. 2 G is the profile diagram of Fig. 2 E.

Ask for an interview Fig. 2 and Fig. 2 A to 2G, rolling steel ball retainer forming process provided by the utility model, system earlier with for example various ironys, aluminium close, planar metal thin plates such as Cuprum alloy 10 such as phosphorus table copper coin, brass sheet or high-tensile strength brass are its host material, and implement following operation with continuous multiple operation or single operation mode via press machine on this planar metal thin plate 10;

1, shown in Fig. 2 A, utilize simple punching apparatus to make several equidistant and be parallel to each other punchings 12 in these planar metal thin plate 10 upper punches.

2, shown in Fig. 2 B, with sludge ice stretching (Embossing) processing technique this planar metal thin plate 10 with several punchings 12 is folded between concavo-convex pair of opposite pressing mold (scheming not shown), via the thin plate host material of compression moulding so as to stretching around each punching, make it to raise up and form a arc chambers 14 in order to hold rolling element, this arc chambers 14 have one relatively greater than the implantation hole 18 and of for example rolling element such as ball or roller 16 diameters relatively less than the limiting holes 20 of rolling element 16 diameters;

3, shown in Fig. 2 C and Fig. 2 D, each rolling element 16 is inserted arc chambers 14 inside by implanting hole 18, limiting holes 20 can prevent that then rolling element 16 accidents of implanting in the chamber 14 from dropping; Utilize the gouge mode then and impose by the peripheral position that is close to this implantation hole 18 and calking ca(u)lk (Caulking) operation such as beat along the arrow F direction shown in Fig. 2 C, implantation hole 18 hatch bore diameters are dwindled, can be held in to avoid packing arc chambers 14 interior rolling element 16 accidental into and freely roll in this arc chambers 14; Only the aperture because of this implantation hole 18 can dwindle in following volume sired results preface automatically, and therefore, this calking ca(u)lk operation also can be omitted in this case;

4, shown in Fig. 2 E to G, the wall of these 18 positions, implantation hole is made internal face and this thin sheet like plate host material is rolled up the circle moulding, the material that makes the thin sheet like plate body simultaneously is keeping utilizing traditional interconnection techniques such as spot welding, gas welding, cured weldering, high frequency welding, riveted joint or snapping that the two ends of this thin sheet like plate host material are fused under the best indeformable execution conditions, so as to being shaped to the tubulose retainer finished product 22 of implanting rolling element 16; The circle process is being rolled up because of being extruded in the implantation hole 18 that wherein is arranged in internal face, and its aperture is contracted to relative diameter less than rolling element 16 thereupon, be held in so as to making rolling element 16 be able to adeciduate mode in the arc chambers 14 and also freely roll, then retainer 22 is promptly accused and is finished;

The operation of utilization shown in Fig. 2 A and Fig. 2 B is so as to after stamping out an internal diameter punching 12 in advance in the utility model on the flat sheet, with the sludge ice stretching technique it is drawn into an arc chambers 14 that protrudes again, shown in Figure 1B, directly on a pipe shape material, be drilled with several in itself and the traditional method for making and be positioned at arc penetration hole 62 on the curved surface mutually relatively the time with driling machine and tool, though the operation of this case has more one formality than traditional method for making, only owing to be drilled with several arc penetration holes on the curved surface in the process time that is giving the sludge ice stretching on process time far above the isometrical hole of this case punching press on flat sheet, therefore, in fact the one procedure of the two procedures of this case inverse ratio tradition method for making on process time is short; Moreover, punching in this case, sludge ice stretch, plant operations such as pearl and ca(u)lk in fact continuously the multiple-project mode finish simultaneously, that is as shown in Figure 2, only must make this planar metal thin plate 10 move same distance in same blanking time, punching is finished in the variant zone that gets final product inherent at one time planar metal thin plate 10 simultaneously, sludge ice stretches, plants operations such as pearl and ca(u)lk, in other words, this case is able to one procedure and finishes several operation required man-hour simultaneously, and this is can not for its host material institute with the tubular shape stock; Therefore, the required pact in man-hour of this case only is 1/5th of traditional method for making.

Utilize the sludge ice stretching technique that the flat sheet around the punching 12 is drawn into and protrude about three times arc chambers 14, just can reach the maximum yield point of this sheet material, not only can make the finished product of this case obtain maximum stress bearing strength, simultaneously, more but used thickness is only made this part retainer for the planar metal thin plate of tubular shape stock 60 thickness 1/3rd in traditional method for making, and the Master Cost of the required consumption of this case is greatly reduced.

What should be illustrated especially around here is, though the retainer of being produced with this case technology on out of roughness not as good as in the made retainer of traditional method for making; Only because in fact the compressive stress that steel ball bore is by interior outside track circle and rolling element are born in relative rotation, and to keep only being in order to prevent that rolling element from coming off and make each rolling element be able to spaced at equal intervals, it is not an element that directly meets with stresses, by it, the significance of retainer out of roughness is far away from the out of roughness of track circle and rolling element; Moreover, with present industrial technology, in this case this planar metal thin plate 10 rolled into round shape retainer finished product 22, can near in traditional method for making shown in Figure 1A the out of roughness of tubular shape stock 60, the fine difference of out of roughness is for the rollability of steel ball and have no effect between the two.

Described in the utility model take the device of sheet metal as the retainer base material, except its out of roundness was not so good as classical production process, it all was better than traditional retainer at aspects such as man-hour, workability, qualification rate, costs, and has more following advantage:

1, can cut respective width and implant the flaky material of rolling element by required specification, again it is rolled into circle.

2, can utilize press machine on flat sheet, to carry out punching press with continuous multiple operation or single operation, also can finish simultaneously in different zones punching, sludge ice stretching, plant the operations such as pearl and ca(u)lk, save 5 times of man-hours than traditional handicraft;

3, work continuously owing to the utility model adopts, so its size is accurate and stable, rolling element is difficult for getting rusty, and can guarantee quality;

4, the utility model stretch to replace traditional tool boring with sludge ice, and not only construction and does not have tool wear and the problem of easy-formation not in the traditional handicraft easily; Sheet material also can reach maximum yield point simultaneously; And can adopt thickness is that traditional 1/3rd sheet material is made the finished product of better structural strength, and is saved significantly fee of material.

Claims (2)

1, a kind of rolling steel ball retainer, be concretely a kind of be the rolling steel ball retainer of base material with the planar metal thin plate, comprise rolling steel ball and retainer, it is characterized in that the shape system of this retainer makes several equally spaced and be parallel to each other punchings by a planar metal thin plate upper punch; With this planar metal thin plate with several tool punchings so as to the thin plate host material around each punching that stretches, make it to raise up and form an arc chambers that can hold each rolling element in this rolling steel ball, this arc chambers have one relatively greater than the implantation hole and of this rolling element diameter relatively less than the limiting holes of this rolling element diameter; Again each rolling element is inserted each arc chambers inside by implanting the hole, this limiting holes can prevent that then the indoor rolling element accident of implant cavity from dropping; Wall with this position, implantation hole is rolled up round moulding as internal face with this thin sheet like plate host material, simultaneously, the two ends of this thin sheet like plate host material are linked into an integrated entity, thereby be shaped to a pipe shape rolling steel ball retainer of having implanted rolling element.

2, rolling steel ball retainer as claimed in claim 1 is characterized by, after rolling element is implanted arc chambers but roll up before the sired results preface the peripheral position of implanting the hole is imposed the calking ca(u)lk and forms the implantation hole of an aperture less than the rolling element diameter.

Images