CN1101313A

CN1101313A - Grinding apparatus

Info

Publication number: CN1101313A
Application number: CN94104841A
Authority: CN
Inventors: O·霍特希; G·施米德
Original assignee: HOTTECH GmbH
Current assignee: HOTTECH GmbH
Priority date: 1993-04-29
Filing date: 1994-04-28
Publication date: 1995-04-12
Also published as: HUT69232A; EP0622154A1; KR940024375U; JP3009923U; HU9401228D0; AU6076994A

Abstract

A sanding device, in particular for the vibrational sanding of the surface of a tube 25 or the like, has a retaining element 12 which is formed with an at least approximately half-round, cylindrical opening 18, on the inside of which fastening means are provided for holding the sanding tool in place. To this end, a hollow body 14 forming the opening is fastened to the retaining element, and a velcro-type lock strip 16 is attached as fastening means for the sanding tool to the inside of the hollow body. An abrasive paper likewise provided with a velcro-type lock can be detachably fastened by means of the velcro-type lock strip. In addition, the retaining element is dimensioned in accordance with the sanding plate of a portable sander and has on its underside a velcro-type lock tape 12' which can be fastened to the sanding plate 23.

Description

Grinding apparatus

The present invention relates to a kind of grinding apparatus of surface of the workpiece that is roughly a cylindrical work piece or a definite shape of being used to polish, this grinding apparatus comprises a retaining element and a grinding tool, grinding tool is sand paper preferably, can be attached on the described retaining element.

Even to this day, for pipe fitting, circle or dihedral object are processed, so that for example remove iron rust or remaining paint, all are to carry out by hand or with traditional hand sand head generally, for use in house assembling or other purposes.When using a hand sand machine, sand paper is attached on the bottom surface of its bottom nog plate, this nog plate can be impelled its generation to swing back and forth, make described nog plate present a flat basal surface, thereby, when handling a pipe or analog, can only form linear contact, like this, handle tube surface equably just is difficult to reach.In addition, be directly installed on the pipe fitting of wall or ceiling front rigidly, mostly can not use a hand sand machine that it is all polished in each side, because use described hand sand machine not reach the rear side of pipe in ordinary mode.

In contrast, the object of the present invention is to provide a kind of grinding apparatus that belongs to mentioned kind, use this equipment just can polish, clean, polish or make its surface roughening to pipe or analog in very easy and economic mode.

According to the present invention, this problem can be solved like this, promptly be roughly semicircular cylinder opening, or its cross section is equivalent to the workpiece shaped aperture, and makes its inside have the grinding tool of making to be fixedly coupled device by on retaining element, designing at least one.

Used the grinding apparatus of this design according to the present invention, the target that obtains a kind of absolute simple structure has just reached, and uses this equipment, and for example, pipe or the workpiece with definite shape just can be easy to and polished soon.

Preferably a kind of so-called Velcro lap belt of foregoing jockey, this band is attached at the inside of semicircle cavity, and also is attached with this Velcro lap belt on the sand paper, and like this, sand paper just can be taken off at any time.

One of grinding apparatus particularly suitable of the present invention has the hand sand machine of the instrument polishing plate of a swing, has jockey at its end retaining element, so that can be connected on the sander polishing plate with unloading.

Below will be illustrated in detail with reference to accompanying drawing the present invention and additional advantage thereof.

Fig. 1 is the perspective view that embodies a grinding apparatus of the present invention, and hand sand machine of this equipment utilization is processed a pipe workpiece.

Fig. 2 is the perspective view of grinding apparatus of the present invention among Fig. 1.

Fig. 3 is a front view that is used for a kind of variant of grinding apparatus that cylindrical workpiece is processed, and the cross section of workpiece demonstrates with its whole circumference.

Fig. 4 is the front view of the another kind of variant of a grinding apparatus.

Fig. 5 is the front view of a kind of variant of a grinding apparatus that has a curved shape; With

Fig. 6 is the perspective view of a kind of variant of a grinding apparatus that has a handle.

Fig. 1 and 2 demonstrates a grinding apparatus 10, and it mainly has a tabular retaining element 12 and a semicircle cavity 14 that is attached on the described retaining element.Retaining element 12 can be attached on the hand sand machine 20 with unloading, thereby by just occurring with direction appearance longitudinally and/or on the periphery of the workpiece 25 of the pipe that preparation is processed toward complex line or track wobble motion that the latter produces.This hand sand machine 20 itself is a known technology, is therefore hereinafter no longer described in detail.

According to the present invention, design has an opening 18 that is roughly semi-cylindrical shape in dish type cavity 14; In described opening, be provided with the jockey that is used for fixing a milling tools.In present this embodiment, a Velcro lap belt 16 that extends on its whole semicircle inner periphery is fixed as jockey.The sand paper of using as milling tools 15 can be pressed in the cavity 14 and is fixed on wherein in the simplest mode.For this purpose, the whole back side of described sand paper all has corresponding Velcro lap belt.Have jockey on retaining element 12 upper surfaces, this jockey also is designed to a Velcro lap belt 12 '.Described Velcro lap belt can be connected on the polishing plate 23 of hand sand machine 20 retaining element 12.Polishing plate 23 is connected on the retaining element 12 of suitable size, at this.Velcro lap belt 12 ' is as the overlap joint element that can take.Described lap belt can take off or set up again from polishing plate 23 very simply.Described opening 18 is parallel to the round straight line or the track wobble motion of the polishing plate 23 of sander and extends.Like this, the cavity 14 that has fixing sand paper just can be pressed on the pipe 25; And the surface of described pipe (for example metal tube) just can be polished evenly especially in an extremely short time, or polishes with suitable sand paper (polishing cloth).In addition, use a suitable non-woven fabric, just might make the surface roughening of workpiece.

In principle, people can imagine, for the diameter of the opening 18 that obtains different size, can be connected cavity 14 on the retaining element 12 with the diameter of maximum possible; And for the workpiece than minor diameter is processed, people can imagine the semicircle insert that to insert various tubuloses, and its shape can cooperate described cavity but have less size, in cavity, being equipped with and outside the Velcro lap belt.Described Velcro lap belt is contained in the outside of cavity or is contained on the outer insert; And their fixedly sand paper or less inserts inside.In addition, retaining element can come fixed its size and have the Velcro lap belt to seal the polishing plate as fastener with from side according to the polishing plate of hand sand machine.

The semicircle plate-like cavity 14 of grinding apparatus 10 can for example use screw removably to be connected on the retaining element 12, perhaps also can for example use rivet or bonding agent not to be connected on the retaining element 12 with dismantling.Yet, the latter, the same with cavity 14, preferably can make an integral body, but in principle, they can be made also by another kind of material (aluminium, steel etc.) with plastics.In addition, two or more cavitys, the arrangement that preferably is parallel to each other, and have same or different diameters, can be configured on the retaining element.

In arrangement according to Fig. 3, sand paper 45 round a cylindrical work 41 and by a band 40 that surrounds this sand paper 45 can be fixed on with taking workpiece 41 around.The inboard of this band 40 and the outside all are furnished with a Velcro lap belt, just sand paper 45 can be fixed on the inboard with this lap belt; At first, it can be fixed in the opening 18 of retaining element 12 outside, and secondly, the connection of its formation itself.Workpiece 41 is added man-hour, sand paper 45 at first preferably roughly be fitted in this workpiece around, the sand grains of grinding is towards the inside; Then that the two ends of band 40 are superimposed and it can be coupled together with taking.Retaining element 12 can be pressed on the band 40 with its semicircle opening 18 then, and the swing of hand sand machine polishing plate is pressed on the Velcro lap belt 12 '; Like this, workpiece 41 just obtains polishing or polishing at its whole circumference face in an operating procedure, and at this, the hand sand machine is on the one hand to carry out reciprocal feed motion at a high speed; And on the other hand, it is being guided along workpiece with hand again, preferably also has a reciprocal spinning movement, this action also can with described reciprocating action overlaid or not overlapping.Like this, even if the pipe that extends along wall, its rear side generally is difficult to approaching, also can give polishing in all sides.

Figure 4 and 5 demonstrate two kinds of embodiment of grinding apparatus 43 or 50, and they have different shapes, respectively have a retaining element 49,52 and a cavity 48,54 that forms an opening 48 ', 54 ' of being furnished with a Velcro lap belt 49 ', 52 '.Sand paper can be captured between in the corresponding opening 48 ', 54 ' by the Velcro lap belt 46,55 that is fixed on the described opening again.

Its shown cross section is designed to the rectangle workpiece that the grinding apparatus 43 of square is specially adapted to polish and has fillet among Fig. 4.Another advantage of this grinding apparatus 43 is can be changed by the sand paper 47 formed radiuses 47 ' that are inserted in the opening 48 ', so that be suitable for the actual circularity of workpiece.

Be particularly suitable for making its formation can cooperate opening 54 ' shape according to the grinding apparatus 50 of Fig. 5 as a kind of processing in order to instrument that a kind of timber is processed so that to workpiece.Certainly, other profile except shown in the figure or decorative shape all possible configuration in cavity 54.

Fig. 6 shows a kind of grinding apparatus 30, and it only has a cavity 34 and a retaining element 32, and retaining element is used as a handle and is connected on the described cavity.In other direction, cavity 34 also has an opening 35 that is roughly semi-cylindrical shape; With one be fixed on and play the fixedly Velcro lap belt 36 of the jockey effect of sand paper in the described cavity.Utilize this grinding apparatus 30 just a cylindrical work to be polished, clean or polish enough hands.Retaining element 32 and the cavity 34 that has an opening 35 can be made as a whole in principle; Perhaps also can dispose an independent handle.On this handle can, for example in Fig. 4 or Fig. 5, an attached retaining element.

The present invention has more than certainly and is limited among the illustrated embodiment.Thereby for example, the inside of cavity can for example be coated with the last layer grinding agent and directly use as milling tools.Also have set jockey also might not use the Velcro lap belt.Self-adhesive tape or analog also can be considered.Its Velcro lap belt of the hand sand machine that has is arranged on the bottom side of polishing plate; Therefore, grinding apparatus of the present invention can connect thereon easily.On the above-mentioned Velcro bridge piece market supply is arranged all, this bridge piece is such band, it has many annulars on a part filament, and another have on partly mushroom or hook-shaped filament or can with the non-woven fabric of the mutual interlock of described band.

Claims

1, a kind of be used to polish one be roughly cylindrical or have the grinding apparatus on surface of the workpiece of definite shape, it comprises a retaining element and a milling tools, milling tools preferably can be attached at the sand paper on the described retaining element, it is characterized in that, wherein, retaining element (12,49,52) go up design at least one opening that is roughly semi-cylindrical shape (18 is arranged, 48 ', 54 ') or a kind of opening, its cross section corresponds to the shape of workpiece, and its inside has jockey so that fixing milling tools.

2, grinding apparatus as claimed in claim 1, it is characterized in that wherein having a retaining element (12,49,52) and one or more cavity (14,48,54), cavity forms opening (18,48 ', 54 ') and be attached on the described retaining element, Velcro lap belt (16,46,55) is fixed on cavity (14 as jockey, 48,54) on internal heads or the whole inner surface, by means of this lap belt, the sand paper that its back side disposes the Velcro lap belt too just can give attached with taking.

3, grinding apparatus as claimed in claim 1, it is characterized in that wherein retaining element (12,49,52) have jockey and be used for it be attached to the hand sand machine (20) of a swing with taking, thereby the latter is produced toward complex line or track wobble motion.

4, grinding apparatus as claimed in claim 3, it is characterized in that the size of retaining element (12) wherein is according to the size of the polishing plate (23) of hand sand machine (20) and fixed, has a Velcro lap belt (12 ') and as jockey it is attached on the polishing plate (23) on the retaining element.

5, grinding apparatus as claimed in claim 1 is characterized in that the workpiece (41) that sand paper (45) is wherein surrounded cylindrical a, oblong, rectangle or other shape goes up and can be fixed on the described workpiece with taking; Having a retaining element (12) that forms the cavity (14) of half circular open (18) is attached on the periphery of sand paper; Like this, this workpiece (41) just can be polished to its whole circumference face in an operating procedure, polishes, cleans or make its roughening.

6, grinding apparatus as claimed in claim 5, it is characterized in that wherein sand paper (45) can take seal the band (40) of stating sand paper in the residence by one and hold and be fixed on the workpiece (41), thus, make the within and without of band (40) be formed with a Velcro bridge piece that cooperatively interacts, by this bridge piece, described band is fastened on its inside with sand paper (45); And at first outside, it can be fixed in the opening (18) of retaining element (12), secondly, and being built up and self connecting by its two ends.

7, grinding apparatus as claimed in claim 1, it is characterized in that grinding apparatus (43) wherein has a cavity (48), its cross section is a dihedral, sand paper (47) can be inserted in its opening (48), thereby is the actual circularity that can change and can just in time adapt to workpiece by the radius (47 ') that described sand paper forms.

8, grinding apparatus as claimed in claim 1 is characterized in that the two or more openings (18) that wherein stretch along polishing feed motion direction are configured on the retaining element (12).

9, grinding apparatus as claimed in claim 1, it is characterized in that wherein for the workpiece than minor diameter is processed, can be inserted in the cavity and its shape can cooperate and is furnished with interior and outer Velcro lap belt on the tubulose of described cavity, the semicircular insert, this lap belt is contained in the outside of cavity or is contained on the outer insert; And their fixedly sand paper or less inserts inside.

10, grinding apparatus as claimed in claim 1 is characterized in that retaining element (32) wherein is designed to as a handle, is used for maybe being connected in polishing, cleaning or the polishing that pipe on the handle or pole stock carry out manpower as workpiece.