Patent Publication Number: US-6669541-B2

Title: Abrading method and holding device

Description:
FIELD OF THE INVENTION 
     The invention relates to a abrading method such as grinding, polishing, buffing, scaling, and grooving. More particularly, the invention relates to a method that uses the versatility of a hand held type angle grinder to abrade with while its being supported from a clamping device. 
     The invention also relates to a holding device. More particularly, the invention also relates to a holding device that is used to support a hand held type angle grinder from a clamping device such as a lathe&#39;s tool post or a bench vise. 
     BACKGROUND OF THE INVENTION 
     There are many types of methods used in which to abrade a finish onto a workpiece. A commonly used method is done by means of mounting a grinder on a lathe (of which hereinafter is referred to as a grinding set up). While a workpiece is being supported and rotated in a lathe, the grinder is used to abrade the workpiece to a precise finish. This type of abrading method will require roughly tooling the workpiece to a rough finish, prior to abrading it to a precise finish. 
     Tooling a workpiece is done by means of mounting a tool post on a lathe, then a cutting tool is clamped onto and supported by the tool post (of which hereinafter is referred to as a tooling set up). While the workpiece is being supported and rotated in a lathe, the cutting tool is then used to cut or tool the workpiece to a rough finish. 
     A grinding set up and a tooling set up are set up separately. This is a disavantage as it requires using and wasting costly production time while changing over from one set up to the other. What is needed is a method of grinding and tooling from one set up. 
     Some jobs require constant changing back and fourth from grinding to tooling. This is a disadvantage due to having to relocate prior precise settings in regards to a workpiece. What is needed is a means to constant change back and fourth from grinding to tooling, and without losing prior settings. 
     Grinder&#39;s that are designed to be mounted onto a lathe&#39;s carraige are very costly. Also, these types of grinder&#39;s are either heavy and bulky, or light duty with lack of power. This limits these grinders to only specific abrading jobs. 
     Most hand held type angle grinders are equipped with three side handle sockets. Those side handle sockets are located on top of and on either side of the gear case of the grinder. These side handle sockets are normally used for installing a side handle which can be threaded into any one of those sockets. This allows the operator an option to position the handle into the best suited position. 
     Arms  2 A reaches out comfortably from each side of main body  1 A. Then extend over either side of the gear case of the angle grinder so that holes  3 A will align over the side handle sockets. Bolts will extend through holes  3 A and will thread into the side handle sockets and properly secure the holding device onto the angle grinder. 
     DISCRIPTION OF RELATED ART 
     No related art was found in the field of search in area&#39;s 82/157, 82/159, 82/160, 82/161, 82/173, 407/66 45/19, 451/66, 451/103, 451/109, 451/111, 451/142, 451/143, 451/344, 451/348, 451/424, 451/911. 
     BRIEF SUMARY OF THE INVENTION 
     Grinding, polishing, buffing, scaling, and grooving, are all hereinafter referred to as abrading. 
     A clamping device that can mount onto a lathe&#39;s carriage or compound and can interchangeably support cutting tools or support cutting tool holders is hereinafter referred to as a tool post. 
     The present invention features a abrading method that uses a hand held type angle grinder to abrade with while its being supported from a tool post. This method will provide easy means of abrading and tooling from one set up. 
     Using the abrading method with a tool post that supports tool holders will provide fast and easy means to constant change from abrading to tooling and without losing precise settings. 
     The present invention also features a holding device. The holding device is adapted to be secured onto a hand held type angle grinder. The holding device will provide means to support a hand held type angle grinder from a tool post. Also, the holding device will provide means to support a hand held angle grinder from a tool posts tool holder. 
     A holding device also has a supporting end that is located on opposite and of a holding end. Supporting end provides a shelf area  4 A for a holding device to be clamped onto by a clamping device. One example of a clamping device, but not limited to, is a lathe tool post lathe tool post will attach onto a lathe&#39;s carriage incorporates a chamfer or groove of which a lathe cutting tool can be inserted into. A shelf area of a holding device and a shelf area casted from a angle grinder&#39;s gear case, can also be inserted into a tool post chamfer. A tool post also incorporates hold down belts. These bolts are located over the chamfered area and are used to thread down onto and fixly clamp a tool theta boon inserted within its chamfer. 
     Lathe&#39;s will vary in size and angle grinders also vary in size. A large lathe will normally he equipped with a large tool post and will require a large holding device for supporting a large angle grinder. A small lathe will normally be equipped with a small tool post and will require a small holding device for supporting a small angle grinder. 
     A shelf area  4 A of FIG. 2 can also be casted as part of the gear case of the angle grinder. Gear case will he casted with a shelf area extending conformingly outward and will not require a separate holding device. 
     It will be a advantage to support a hand held type angle grinder onto a bench vise. This will allow the operater to safely abrade a small workpiece while having both hands free to hold the workpiece. 
    
    
     BRIEF DISCRIPTION OF THE DRAWINGS 
     FIG. 1 is a general overall view showing a abrading method according to the invention. 
     FIG. 2 shows a view of a holding device according to the invention. 
    
    
     DETAILED DISCRIPTION OF THE INVENTION 
     The invention features a abrading method that uses the versatility of a hand held type angle grinder to abrade with while its being supported from a clamping device. 
     The invention also features a holding device that is used for supporting a hand held type angle grinder from a clamping device such as a tool post, tool post tool holder, or a bench vise. 
     FIG. 1 is a general overall view showing a abrading method according to the invention. 
     FIG. 1 details the following, a holding device  1 , a hand held type angle grinder  4 , a abrasive wheel  5 , a lathe&#39;s tool post  6 , a lathe&#39;s carriage  7 , a lathe  8 , a lathe&#39;s chuck  9 , a lathe&#39;s tailstock  10 , a roller  11 , a non metal covering  12 , grooves  13 , and journals  14 . 
     FIG. 1 is discribed as follows, the holding end of a holding device  1  is bolted onto a hand held type angle grinder  4 . Hand held type angle grinder  4  is supporting, but not limited to, a abrasive wheel  5 . The supporting end of holding device  1  is clamped onto, but not limited to, a lathe&#39;s turret type tool post  6 . Tool post  6  is attached onto a lathe&#39;s carriage  7 . A lathe  8  is supporting, but not limited to, a cylinder or roller  11  between its chuck  9  and its tail stock  10 . Roller  11  is being supported by its journals  14 . Some rollers  11  have non metal coverings  12 . Some rollers  11  have grooves  13  abraded into its non metal covering  12 . 
     Some examples of a hand held type angle grinder&#39;s versatility is explained, but not limited to, as follows. 
     Still referring to FIG. 1, abrasive wheel  5  can be any of the following. 
     A stone wheel, used for abrading a precise finish on a steel roller  11  or a rollers covering  12 , also used to abrade grooves  13  in a rollers covering  12 , also used for abrading a precise finish on a rollers journals  14 . 
     A flapwheel and a non wooven wheel, used for polishing and buffing a finish onto a roller  11 , a rollers covering  12 , and a rollers journals  14 . 
     A brush, used for scaling off a scale build up located on a rollers journals  14  thats caused from certain environments of its application. 
     A cut off wheel, used to abrade thin grooves into a rollers covering  12 . 
     Still referring to FIG. 1, holding device  1  can support a hand held type angle grinder  4  while being clamped onto either side of tool post  6  and other tool posts as well. 
     Still referring to FIG. 1, when abrading grooves  13  into rollers covering  12 . Angle grinder  4  can be securely held by holding device  1  in a same position of degree as a pitch degree of grooves  13 . 
     Also a holding device will support a hand held type angle grinder while being clamped from a tool post tool holder. Most tool post tool holders are provided with a height adjustment apparatus. This will benefit in positioning a hand held type angle grinder against a workpiece. 
     Also some hand held type angle grinders are equipped with, and uses, a belt sanding apparatus such as a MILWAUKEE BAND FILE. 
     Also yet, it will be a advantage to support a hand held type angle grinder from a bench vise. This will allow the operator to safely abrade a small workpiece while having both hands free to hold the workpiece. 
     FIG. 2 shows a view of a holding device according to the invention and details the following, a main body  1 A. Two arms  2 A, two holes  3 A, and a shelf area  4 A. 
     A holding device comprises of a one piece construction and is preferrably made of steel or a metal alloy. Two arms  2 A forms a holding end of a holding device. Arms  2 A reaches out conformingly from each side of main body  1 A. Located at the outer end of each arm  2 A is a hole  3 A. 
     A holding device is sized according to the size of a hand held angle grinder of which it is to be used with. As one example but not limited to, a over all size of a holding device for using with a 7″ variable speed and made by MAKITA will be 2⅜″ in length, 3½″ in width, and 1¼″ in thickness. Distance between the arms will be 2¾″ and will reach out 1¼″. Arms will have a ½″ hole centered ⅝″ in from its outer end. 
     Arms  2 A will reach out along each side of a hand held type angle grinder accordingly, so that each hole  3 A will be located over a theaded area of where a handle would normally be attached. A bolt will extend through each hole  3 A of arms  2 A and thread into the angle grinder. When the bolts are tightened, the holding device becomes securely attached to the hand held type angle grinder. Proper size bolts is provided with a holding device. 
     As an option, a handle can be attached and used in place of one of the bolts. This will allow a hand held type angle grinder to remain safely held and used manually as well as being supported from a tool post and used in a lathe. 
     A holding device also has a supporting end that is located on opposite end of a holding end. Supporting end provides a shelf area  4 A for a holding device to be clamped onto by a clamping device. 
     Shelf area  4 A extends outward, conformingly from the end and full width of main body  1 A. Size of a shelf area  4 A will be according to a size that fits a clamping device that its to be clamped to. As one example but not limited to, a shelf area  4 A will extend outward ¾″ and will be ⅝″ thick, when its to be clamped by a tool post tool holder that is made for a lathe with a 10″ to 15″ swing. 
     The invention features a abrading method that, according to the invention, uses a hand held type angle grinder to abrade with while its being supported from a clamping device such as a tool post, a tool post tool holder, or a bench vise. 
     The invention also features a holding device. According to the invention, a holding device is used to hold a hand held type angle grinder onto a clamping device such as a tool post, a tool post tool holder, or a bench vise. 
     It is recognized that various alterations are possible by one of ordinary skill in the art and within the scope of the claims which follow.