US2659185A

US2659185A - Honing machine

Info

Publication number: US2659185A
Application number: US234285A
Authority: US
Inventors: Herbert S Indge
Original assignee: Norton Co
Current assignee: Saint Gobain Abrasives Inc
Priority date: 1951-06-29
Filing date: 1951-06-29
Publication date: 1953-11-17
Anticipated expiration: 1970-11-17

Description

Nov. 17, 1953 H. s. INDGE HONING MACHINE 3 Sheets-Sheet l Filed June 29, 1951 A hal 17H/6 tor H11-Hfer IA/DGE meeomy (ligation.

H. s. INDGE HONING MACHINE Nav. 17, 1953 3 sheets-sheet 2 Filed June 29, 1951 /ZgJ Ivy/qw? HERBERT 5. NDGE @y H6607?? @y H. S. INDGE HONING MACHINE Nov. 17, 1953 3 Sheets-Sheet 3 Filed June 29, 1951 M b3. GJM Ahfowfey Patented Nov. 17, 1953 HoNlNG MACHINE Herbert S.: Indgc, Westboro, Mass., assgnor to NortonV Company, Worcester, .Mass., a corporation of Massachusetts Application J une 29, 1951,'Serial No. 234,285

3 Claims.

The invention relates to honing machines and more particularly to a honing head for honing plane surfaces on a work piece.

.One object of the invention is to provide a simple and thoroughly practical honing apparatus for precisely honing plane surfaces. Another object is to provide a yieldably mounted freely floating honing head. Another object is to provide a honing head which is provided with afuniversal driving connection having its pivotal axes lying in a plane located adjacent to the operative face of the hone so that pressure applied for the honing operation is uniformly distributed to the honing members. A further object is to provide a honing head having a plurality of spaced honing elements which are adjustably mounted on the head to facilitate compensation for wear so as to maintain the operative face of the hone in a predetermined relationship with respect to the axes of the universal driving connection. Other objects will be in part obvious or in part pointed out hereinafter.

One embodiment of the invention has been illustrated in the accompanying drawings, in which like reference numerals indicate like parts and wherein:

Fig. 1 is a vertical sectional view of ahoning machine illustrating the improved floating honing head;

Fig. 2 is a vertical sectional View, on an enlarged scale, through the honing head;

Fig. 3 is a cross-sectional View, taken approximately on the line 3 3 of Fig. 2, through the honing head;

Fig. 4 is a bottom plan view, taken approximately on the line 4 4 of Fig. 2, of the honing head;

Fig. 5 is a fragmentary cross-sectional View on an enlarged scale, taken approximately on the line 5 5 of Fig. l, showing the mechanism for oscillating the honing head; and

Fig. 6 is a fragmentary cross-sectional view, on an enlarged scale, taken approximately on the line 5 6 of Fig. l, through the adjusting mechanism for aligning the arm which supports the honing head.

A honing machine has been illustrated in the drawings comprising a base Iii which serves as a support for a rotatable work sup-porting` platen I motion to the platen I I. ed on a motor supporting platen I 'I which is pivotally mounted on a rock shaft I8 carried by the base I0. The motor I6 is provided with V- groove pulleyv I9 which is connected by a V-belt 2l)v with a V-groove pulley 2| which is mounted on the end ofa rotatable shaft 22. The shaft 22 is provided with a worm 23 which meshes with a worm gear 24 mounted on the lower end of the shaft I3. It will be readily apparent from the foregoing disclosure that rotary motion of the pulley I3 will be imparted through the mechanism above described to impart a rotary motion to the platen II and to a work piece 25 mounted thereon, having a plane surface 26 to be honed. The base I0 also serves as a support for a vertically arranged column 30 having a cylindrical portion 3I formed at its upper end. The cylindrical portion 3I serves as a support for a pair of spacedanti-

friction bearings

32 and 33 whichin turn support a horizontally extending arm 34.

The arm 34 supports a vertically arranged sleeve 35 which is slidably supported within a cylindrical aperture 36 formed in the arm 34. The sleeve V35 serves as a support for a rotatable spindle 31. The spindle 3l is preferably arranged with its axis of rotation parallel to the axis of rotation of the platen 'II and the work piece 25. A honing head 38, to be hereinafter described,

is mounted on the lower end of the spindle 31.

A suitable driving mechanism is provided for the spindle 3l comprising an electric motor 39 which drives a conventional gear reducer unit 4B. The. gear reducer unit 40 is provided with aA driven shaft 4I which supports a multiple V- groove pulley 42. The pulley 42 is connected by a. V-belt 43 with a multiple V-groove pulley 44 mounted on a rotatable sleeve 45. The sleeve 45 is journalled in spaced anti-friction bearings Y 46 and 41. The bearings 46 and 41 are supported within a housing which is iixedly mounted on the arm 34. In order to facilitate tensioning the V-belt 43, the gear reducer unit 4B is mounted on a transversely arranged slide 48 which may be adjusted transversely relative to the column 30 by means of an adjusting screw 49. As illustrated in Fig. 1, the slide 48 is preferably supported on a flanged plate 5I) carried by the Vbearing 32.Y In order to facilitate adjustment ofthe arm 34, a clearance is provided between the flanged plate and an internal cylindrical aperture 5I formed Within the arm 34. An adjusting screw 52 is provided on the flanged plate 50 which serves to adjust the upper portion of the The motor I6 is mountarm 34 which is fulcrumed about the lower antifriction bearing 33 so that the honing supporting spindle 31 may be axially aligned with the axis of rotation of the work supporting platen A plurality of clamping

screws

53, 53a, 53h, 53e, 53d, 53e are provided to lock the arm 34 in the desired adjusted position.

In honing a plane surface such as surface 26 on a work piece 25, 'it is desirable to provide Vnot only a rotary motion of 'the hone 318 rand the work platen but also to provide an oscillation of the honing head 38 during the lapping operation. A suitable mechanism may be provided for oscillating the arm 34 which may comprisean electric motor 55 mounted on the base 13. The motor 55 is provided with a V-g-roove pulley 5G which is connected by a V-belt 51 with a V-groove pulley 58 mounted on the drive shaft vof a yconventional gear reducer 5S. The gear reducer 59 is provided with a driven shaft 60 which supports a crank plate 6| having a vdiametrically arranged T-slot 62. A slide block 53 is arranged to be ad justed transversely within the T-slot 62. A clamping bolt =64 is .provid-edto facilitate locking the slide block 53 in adjusted position fby means fof a nut 65. The'clamping bold `'64 serves as `a lcrankpin which is .rotatably connected to one end Aof Aa connecting rod 66. The other end of the connecting .rod 156 is connected by a. stud 61 with an arm G8. The arm '68 is provided with an aperture 59 which mates with 'a ccrrespondingly shaped surface Aon lthe arm 34. The arm 68 is provided with a slot 10 and a binder screw 1I by means of which the arm `(i8 may be aidjustably 'clamped to the arm 34. It will be readily apparent from the foregoing disclosure that rotation of the pulley 5E 'caused by the motor 55 will be imparted to revolve the 'clamping bolt 04 to impart an `oscillating motion to 'the arm 34. The 'extent of oscillation may be varied by 'adju's'tment of the slide block 34 'Within the T-slot 62 'of the crank plate 6|. if no oscillating motion of the arm 34 is desired, the slide bloc'k '63 may be 4adjusted so that the axis of the clamping bolt A64 is 'aligned with 'the axis ofthe shaft 60. It will be readily apparent that the extent of oscillation of the 'arm 34 may be adjusted :by shifting the slide block within 'the T-slot '62 to vary lthe eccentricity fof the axis lof the clamping bolt 64relative to Ithe-shaft '60 The honing head 38 iis preferably formed with a plurality of spaced honing elements vin Vvorder to produce afhighly efficient honing action upon the work `surface 26 itc be honed. The lower end of the spindle 31 is prov'idedwith 'a cylindrical zportion 'which slida'bly lsupports a cup-shaped sleeve v1B. A stud 11 `having 'parallel slabbed off surfaces 18 is 'supported by `the sleeve 16 and passesthrough :an elongated slot 19 formed in the cylindrical portion l5 "of the spindle 31. The elongated slot 'J9 lserves to facilitate motion Iof Ythe honing head in an axial direction relative to the spindle '31. The cup-shaped sleeve 161is provided with ia centrally located vertical stud 80 which supports 'the lower en'd for a compression spring 8|. Vrl'hecomp'ression 'springfal servesto facili tate 'applying vat pr'd'trmin'eii honing piSSLll'ii as wiiibehereinafter described.

'It is 'desirable to provide a universal driving connection between the spindle 31 and the honing elements 'to be hereinafter described and to locate 'the universal `driving 'connection as close to 'the operative tace of `'the'hone as ypracticable in order that the hone may -be freely floating and distributed to the entire operative honing face. The cup-shaped sleeve 16 is provided with a partial spherical surface which fits within an internal cylindrical surface 36 formed in an annular ring 81. The annular ring 81 is pivotally connected to the cup-shaped sleeve 16 by a pair of diametrically opposed studs 88 and 89 (Fig. 3). Similarly the annular ring 81 is .provided with a partial spherical surface 50 which fits within an internal cylindrical surface 9| formed within a sleeve 32 which is concentric with but spaced from the sleeve 16. The sleeve 92 is pivotally connected with the annular ring 81 by means of a pair of diametrically opposed pivot studs 93 and 94 'which are arranged at 90 to the pivot studs -8'8 and 83. It will be readily apparent that the pivot studs 88-89 and 93-94 are located in close proximity to the operative face of the honing elements to be hereinafter described and serve as 'a universal connection to allow the sleeve 32 to freely float relative to the spindle 31.

The 'Sleeve 92 -is provided with a plurality of grooves |00, Hwa, |001), |000, |00d, |00e, |-00f, |009', |00h, |001) |00'c, |00m, |0011, |00p, |00q and 10M .formed i-n the Vouter periphery thereof and arrangedpara-llel `to the Vaxis of rotation of the spindle `'31. A Aplurality fof elongated honing sticks |0I are mounted within the grooves |00. Adjacent `pairs of honing sticks Yl|0| are clamped to the sleeve 92 by 'means of a clamping block |02 anda clamping screw |03 which is screw threaded into the sleeve92.

lt is desirable to provide a suitable'longitudinal adjustment for the honing 'sticks HH to compensate .for Wear thereof during honing so as to maintain the operative honing face lin close proximity to the 'pivotal axes -o'f the universal driving connection. This mechanism may comprise a collar v|05 which is threaded onto a threaded portion '|06 formed on vthe -ou-ter periphery of the sleeve 82.. Thecoll'ar 1105 serves as an end thrust member for :all of lthe honing sticks |0|. When it is desired to adjust 'the honing sticks |0|, the clamping screws |53 may be loosened and the l collar |05 rotated -to cause an endwise motion of the honing sticks |`0`| 'after which the clamping screws |03 may be tightened to clamp the honing sticks |0-| in adjusted position. The lower faces .|01 `of `the honing .sticksl |'0| are arranged to lie in the same plane to form an operative `honingsurface.

The operation of this `improved honing apparatusWiIl 'be readily :apparent 'from the foregoing disclosure. -A work piece 25 'having a surface 26 to be honed is mounted on the platen l, the electric motors FIIB, f39 fand 55 are then started, the 'sleeve 35 may then be lowered by rmeans of a manually operable lever |08 which rotates a gear |09 meshing with `a -rackbar 'l0 to cause a downward :motionrof the sleeve 35 to move the honing surface '|01into operative engagement with the surface 2 B to beh'oned. The work piece is rotated, the :hone 38 rotated and the arm 34 oscillating through va stroke ldeternfiined by lthe position of the l-clampmg bolt 64 fas above described. The downward movement of the sleeve 35 is continued until the spring 8| is compressed to give the desired :honing .pressure after which the sleeve 35 is lockedfin adjusted position by'a binder bolt Due to the universal -drving connection located adjacent to the ihon'ing faces 101, a uniform hon ing pressure will he 'applied `to the entire operative'face of the 'hone 38.

llt will'tlius be seen that there has been promet pressure applied thereto'maybe unifcr'mlr 'i5 vided by this ini/@tin 'apparatus i111 Whih the various objects hereinabove set forth together with many thoroughly practical advantages are successfully achieved. As many possible embodiments may be made of the above invention and as many changes might be made in the embodiment above set forth, it is to be understood that all matter hereinbefore set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.

I claim:

1. In a honing machine having a rotatable spindle and a honing head thereon including a slidably mounted sleeve on said spindle, driving connections between the spindle and sleeve including an elongated slot in said spindle and a drive pin on said sleeve passing through said slot, an outer sleeve surrounding said rst sleeve which is concentric with and spaced therefrom, a plurality of spaced grooves formed in the outer periphery of the outer sleeve, a honing element adjustably clamped in each of said grooves, the ends of said elements forming a plane honing face, yieldable means interposed between the spindle and inner sleeve to facilitate an axial yielding movement of the sleeve and honing head, and a universal driving connection between the lower ends of said sleeves to facilitate equalizing the pressure applied to said honing face.

2. In a honing machine having a rotatable spindle and a honing head thereon comprising a slidably mounted sleeve on said spindle, an outer sleeve surrounding said first sleeve which is concentric With and spaced therefrom, a plurality of spaced honing elements adjustably clamped on the outer periphery of said outer sleeve, the ends of said elements forming a plane honing face, a universal driving connection between the lower ends of said sleeves to facilitate equalizing pressure applied to said honing face, and an adjustable collar threaded onto the outer periphery of said outer sleeve which serves as an end thrust member for said honing elements and also to facilitate endwise adjustment thereof to compensate for wear so as to maintain the honing elements in a predetermined relationship with the pivots of said universal driving connections.

3. In a honing machine having a rotatable spindle and a honing head thereon including a 'slidably mounted sleeve on said spindle, yieldable connections between said spindle and sleeve to facilitate an axial yielding movement of said sleeve an outer sleeve surrounding said first sleeve which is concentric with and spaced therefrom, a plurality of spaced honing elements adjustably clamped on the outer periphery of the outer sleeve, the ends of the said elements form a plane honing surface and universal driving connections between the lower ends of the said sleeves comprising an annular ring interposed between the lower ends of the said sleeves, a partial spherical surface formed on the lower end of the inner sleeve which fits within an internal cylindrical surface within said ring, a pair of diametrically opposed aligned studs interposed between the lower ends of the said inner sleeve and said ring, a partial spherical surface on the outer periphery of said ring which mates with an internal cylindrical surface formed within said member, and a pair of diametrically opposed aligned studs arranged at right angles to said rst studs and interposed between said ring and the lower end of said outer sleeve to facilitate self-alignment of the honing face.

HERBERT S. INDGE.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 344,919 Otis July 6, 1886 1,180,260 Grice Apr. 18, 1916 1,520,662 Maynard et al Dec. 23, 1924 1,955,362 Floss Apr. 7, 1934 2,136,036 Avery Nov. 8, 1938 2,160,494 Floss May 30, 1939 2,195,065 Wallace Mar. 26, 1940 2,272,974 Indge Feb. 10, 1942 2,284,056 Indge May 26, 1942 2,307,632 Meyer Jan. 5, 1943 2,331,523 Wacker Oct. 12, 1943