CA1098555A - Vices - Google Patents
VicesInfo
- Publication number
- CA1098555A CA1098555A CA301,669A CA301669A CA1098555A CA 1098555 A CA1098555 A CA 1098555A CA 301669 A CA301669 A CA 301669A CA 1098555 A CA1098555 A CA 1098555A
- Authority
- CA
- Canada
- Prior art keywords
- axis
- ball
- jig
- jaws
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
ABSTRACT OF THE INVENTION
The invention relates to a work support device in the form of a vice for rigidly supporting a work piece and enabling adjustment of the position of the workpiece to any desired angular position. The vice includes a pair of con-ventional vice jaws or a jig for holding the workpiece. The jaws or jig are mounted for rotational movement about a first axis when released from a locked position and also for tilt-ing movement through 90° with respect to the first axis. This movement is achieved by mounting the jaws or jig on a ball of a ball and socket arrangement wherein the socket is slotted to enable said tilting movement. The socket arrangement is mounted for rotation, when released from a locked position, in a plane normal to the plane of rotation of the jaws or jig. Thus by a combination of rotation movement of the jaws or jig and the socket arrangement as well as tilting movement of the jaws or jig the workpiece may be disposed in any an-gular orientation and locked in said position. Locking is achieved by conventional clamping means.
The invention relates to a work support device in the form of a vice for rigidly supporting a work piece and enabling adjustment of the position of the workpiece to any desired angular position. The vice includes a pair of con-ventional vice jaws or a jig for holding the workpiece. The jaws or jig are mounted for rotational movement about a first axis when released from a locked position and also for tilt-ing movement through 90° with respect to the first axis. This movement is achieved by mounting the jaws or jig on a ball of a ball and socket arrangement wherein the socket is slotted to enable said tilting movement. The socket arrangement is mounted for rotation, when released from a locked position, in a plane normal to the plane of rotation of the jaws or jig. Thus by a combination of rotation movement of the jaws or jig and the socket arrangement as well as tilting movement of the jaws or jig the workpiece may be disposed in any an-gular orientation and locked in said position. Locking is achieved by conventional clamping means.
Description
IMPROVEMENT IN VICES
BACKGROUND OF THE IN`~ENTION
This invention relates to a work support device and in particular to a work support device adapted for attach-- 5 ment to a work bench, machine tool bed or the like, to sup-port a workpiece in a convenient and readily adjustable posi-tion. The device may take the form of a vice.
It is known to provide a vice having a work support head enabling swivelling of the workpiece about a single axis and tilting of the workpiece at an angle to said axis. Fur-thermore, it is known to provide various attachment means for work support devices to enable di~ferent workpieces such as engine cylinder heads and automobile transmissions to be held in a generally convenience and adjustable working position.
~lowever, it is often found in using the known devices, parti cularly for holding cylinder heads and transmissions, that the workpiece cannot be oriented in the most suitable working position without remounting it on the device particularly if ; it is necessary, for example, to completely invert the work-;~ 20 piece.
:`
SUMMARY OF THE INVENTION
Thus it is an object of the present invention to provide a work support device capable of supporting a work-. ~ .
.
- . : . : .
~' ' ~' '.
:, -piece and enabling adjustment of the position of the work-piece, including adjustment to any desired angular posi~
tion, to be quickly and easily made.
According to the invention there is provided a work support device comprising a first member adapted to be attach-ed to a work bench or the like; a second member rotatably con~
nected to said first member and adapted to rotate relative thereto about a first axis; first locking means adapted to lock said second member from rotation about said first axis;
a third member rotatably connected to said second member and adapted to rotate relative thereto about a second axis; a ball and socket joint connecting said third member to a work piece mounting means, said joint permitting said mounting me-ans to rotate relative to said third member about a third axis and permitting angular displacement of said third axis with respect to said second axis between a position co-incident with said second axis and a position perpendicular to said second axis; second locking means adapted to lock said work piece mounting means from rotation and angular displacement with respect to said third member; and said ball eccentric-ally formed to prevent sudden unlocking of said ball as said locking force is removed.
With the foregoing in view, and other advantages as will become apparent to those skilled in the art to which this invention relates as this specification proceeds 7 our invention ~ ,r~
.
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~-4-consists essentially in the arrangement and construction of parts all as hereinafter more particularly described, reference being had to the accompanying drawings in which:
DESCRIpTION OF THE DR:AWlNGS
Figure l is a perspective, part sectional view of a work support device according to the embodiment.
In the drawings like characters of reference indicate corresponding parts in the different figures.
DETAILED DESCRIPTION
Referring now to the clrawing, the device is shown to comprise ~ clamping member l0 aclapted to clamp the device -to a work bench, machine tool or the like. The clamping member l0 is a generally U-shaped casting and includes a bolt ll threaded into the lower arm 13 of the casting and adapted to force a -~ 15 rotatable cap member 12 on the bolt against the underside of a work bench or the like and, in cooperation with the upper arm 14 of the casting to firmly hold the device relative to the work bench. The bolt ll is tightened, in use of the device, by means of lever 15 which slides through a hole in the bolt. The clamping member per se is well known.
The clamping member l0 accommodates one end of a short shaft 16 which is located in a bore in the member l0 and is ,~,, ' :
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locked firmly in position by a pin (not shown) which passes through the shaft and casting at point 17. A Sellock (reg.
Trade Mark) pin is suitable for this purpose. The shaft 16 supports a further casting 18 rotatably arranged on the shaft 16. The further casting 18 is thus capable of rotating about - an axis x - x as shown and may be locked in any rotated posi-tion by a locking bolt (not shown~ which is arranged in the hole 19. The locking bolt traverses the shaft 16 and is adapt-ed to draw together two collar members (not shown), each of which has a tapered portion for bearing on the shaft 16. The locking bolt ~ .
screws into one of -the collars and has a flange part for bearing on the other collar. The locking bolt is rotated by means of a lever (not shown) similar to the lever 15.
The casting 18 is retained on the shaft 16 by a pin 20 which is located in a groove around the end of the shaft 16 as shown.
The casting 18 accommodates a further shaft 21 which is rotatably arranged within the casting 18 and is capable of being locked against rotation by means of a lock-ing bolt arrangement 22 and lever 23 similar to those pre-. viously described for locking the shaft 16. The shaft 21 is adapted to rotate about an axis y - y at right angles to the axis x - x. A domed cap member 24 is arranged on top of the shaft 21 and i5 retained thereon by a series of radial rivets 25 which are accommodated in radial holes spaced around the cap member 24 and extending through the member 24 and into the shaft 19. The domed càp member 24 bears on a top surface of the casting 18 at 26 and thus retains the shaft 21 against ~: downward movement. Upward movement of the shaft 21 is pre~
vented by a circlip (not shown) arranged in the groove 27 at the bottom end of the shaft 21. A collar member 28 sits on top of the shaft 21 within the cap member 24 and a key (not shown) located in a suitable key-way (not shown) locks the collar against rotation with respect to cap member 2~.
S5~
A ball member 29 is arranged within the domed cap 24 and sits in a par-t spherical cavity in the top of the collar 28. The ball supports a workpiece mounting member 30 which is connected to the ball via a neck portion 31 having an enlarged part 32 which is accommodated in a suitable ca-vity in the workpiece mounting member 30. The member 30 is retained on the enlarged part 32 by a pin (not shown) which passes through a suitable hole in the member 30 and into the enlarged part 32. The pin is arranged on the axis 33. The neck portion 31 is formed integral with the ball 29 and passes through a slot 34 which extends from the top of the cap member 24 down to the base of the cap member. Thus the ball is capable of rotating in the cap member 24 so as to cause the workpiece mounting member 30 to rotate about the axis y - y. Furthermore, the ball member may rotate in a manner causing the neck portion 31 to move down the slot 34 such that the workpiece mountin~ member 30 assumes a posi-tion as shown which is inclined at 90 to the original posi-tion. The workpiece mounting member 30 may also be caused to assume any position therebetween and is locked in the re-quired position by means of a push rod (not shown) located in bore 35 which is forced against the underside of the col- -lar 28 causing the collar to lock against the ball 29. The ; collar is forced upwardly to cause locking of the ball by means of a bolt 39 screwed into the bore 36 so as to force '~ .
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the push rod in an upward direction. The bolt for this purpose is rotated by a lever 37 similar to the levers previously described. It has been found that a ball which is not perfectly round but which has an eccentricity of about seven thousands of an inch in a diameter of about 1-1/2 inches improves locking of the ball and also prevents the workpiece from dropping suddenly as the bolt 39 is loosened.
When the workpiece mounting member 30 is moved to the down-ward position shown whereby it assumes a position disposed at 90 to the horizontal position it is retained against further downward movement by a boss 38 which projects from the cap member 24 through the slot 34. The boss member 38 is attached to the shaft 21 by means of a bolt which passes through the centre of the boss 38 and screws into the shaft 21.
It should be apparent that by rotating the bolt 39 in bore 36 so as to release the force of the push rod (not shown) in bore 35 on the collar 28, the ball 29 is released for movement whereby the workpiece mounting member 30 may be tilted through 90 in the direction of the slot 34. Further-more, the cap member 24 may be rotated by releasing the lock-ing bolt 22 so as to enable the shaft 21 to which the cap mem-ber 24 is rigidly affixed, to rotate about the axis y - y.
, Thus, by a combination of tilting the workpiece mounting mem-ber 30 and rotation of the cap member 24 a workpiece attached s to the member 30 may be oriented in any angular position in a hemisphere above a horizontal plane through the centre of the ball 29. Simply by releasing the casting 18 for ro-tation about the shaft 16, the workpiece may be oriented in any angular position whatsoever. In other words, the work-piece may be oriented in an infinite number of angular posi-tions.
According to a modified form of the embodiment, the shaft 21 may be made longer enabling the workpiece to be raised and lowered merely by sliding the shaft 21 along the axis y - y within the casting 18. Such longitudinal movement of the shaft 21 is restrained by the locking bolt 22 which also serves to lock the shaft 21 against rotational movement.
It will be obvious to those skilled in the art that numerous modifications and variations to the embodiment des-cribed above may be readily effected by persons skilled in the art. In the embodiment described, the workpiece mount-ing member 30 is shown simply as a disc member to which any one of a plurality of different brackets for attaching va-rious transmissions and cylinder heads to the device may be connected. The brackets each comprise a base member for sliding in the channel 40 to be retained therein by a lock-ing member (not shown) which passes through the mounting .: .
' . ' ~
'. '- " ' '' ' : ~
member 30 and engages the base of the bracket. Alternatively, the workpiece mounting member 30 may comprise conventional vice jaws arranged in a manner such that the fixed jaw is connected to the ball 29 and the movable jaw is arranged on the fixed jaw to slide with respect thereto.
Whilst the embodiment above has been described with the device in an orientation wherein the axis x - x is ar-ranged horizontal and the axis y - y vertical, it should be appreciated that the device may be attached to a bench, ma-chine tool or the like in any orientation. For example, the clamp may be a pipe clamp enabling the device to be clamped to a pipe or other circular member in which case it is of-ten desirable to orientate the device in other than the conven-tional position described.
Since various modifications can be made in our in-vention as hereinabove described, and many apparently widely different embodiments of same made within the spirit and scope of the claims without departing from such spirit and scope, it is intended that all matter contained in the accompanying specification shall be interpreted as illustrative only and not in a limiting sense.
- ' . : '' ~ ~ .
BACKGROUND OF THE IN`~ENTION
This invention relates to a work support device and in particular to a work support device adapted for attach-- 5 ment to a work bench, machine tool bed or the like, to sup-port a workpiece in a convenient and readily adjustable posi-tion. The device may take the form of a vice.
It is known to provide a vice having a work support head enabling swivelling of the workpiece about a single axis and tilting of the workpiece at an angle to said axis. Fur-thermore, it is known to provide various attachment means for work support devices to enable di~ferent workpieces such as engine cylinder heads and automobile transmissions to be held in a generally convenience and adjustable working position.
~lowever, it is often found in using the known devices, parti cularly for holding cylinder heads and transmissions, that the workpiece cannot be oriented in the most suitable working position without remounting it on the device particularly if ; it is necessary, for example, to completely invert the work-;~ 20 piece.
:`
SUMMARY OF THE INVENTION
Thus it is an object of the present invention to provide a work support device capable of supporting a work-. ~ .
.
- . : . : .
~' ' ~' '.
:, -piece and enabling adjustment of the position of the work-piece, including adjustment to any desired angular posi~
tion, to be quickly and easily made.
According to the invention there is provided a work support device comprising a first member adapted to be attach-ed to a work bench or the like; a second member rotatably con~
nected to said first member and adapted to rotate relative thereto about a first axis; first locking means adapted to lock said second member from rotation about said first axis;
a third member rotatably connected to said second member and adapted to rotate relative thereto about a second axis; a ball and socket joint connecting said third member to a work piece mounting means, said joint permitting said mounting me-ans to rotate relative to said third member about a third axis and permitting angular displacement of said third axis with respect to said second axis between a position co-incident with said second axis and a position perpendicular to said second axis; second locking means adapted to lock said work piece mounting means from rotation and angular displacement with respect to said third member; and said ball eccentric-ally formed to prevent sudden unlocking of said ball as said locking force is removed.
With the foregoing in view, and other advantages as will become apparent to those skilled in the art to which this invention relates as this specification proceeds 7 our invention ~ ,r~
.
' : ' ' '. . ' ' '' ''' ~' ' ' . ' .
': ' ' ' . . ' ' ,, ,,, ., ' ~ . :
' '' ' ' ' ' ' ' " " ' ' ' ~ ~ ' 5~
~-4-consists essentially in the arrangement and construction of parts all as hereinafter more particularly described, reference being had to the accompanying drawings in which:
DESCRIpTION OF THE DR:AWlNGS
Figure l is a perspective, part sectional view of a work support device according to the embodiment.
In the drawings like characters of reference indicate corresponding parts in the different figures.
DETAILED DESCRIPTION
Referring now to the clrawing, the device is shown to comprise ~ clamping member l0 aclapted to clamp the device -to a work bench, machine tool or the like. The clamping member l0 is a generally U-shaped casting and includes a bolt ll threaded into the lower arm 13 of the casting and adapted to force a -~ 15 rotatable cap member 12 on the bolt against the underside of a work bench or the like and, in cooperation with the upper arm 14 of the casting to firmly hold the device relative to the work bench. The bolt ll is tightened, in use of the device, by means of lever 15 which slides through a hole in the bolt. The clamping member per se is well known.
The clamping member l0 accommodates one end of a short shaft 16 which is located in a bore in the member l0 and is ,~,, ' :
j5~
locked firmly in position by a pin (not shown) which passes through the shaft and casting at point 17. A Sellock (reg.
Trade Mark) pin is suitable for this purpose. The shaft 16 supports a further casting 18 rotatably arranged on the shaft 16. The further casting 18 is thus capable of rotating about - an axis x - x as shown and may be locked in any rotated posi-tion by a locking bolt (not shown~ which is arranged in the hole 19. The locking bolt traverses the shaft 16 and is adapt-ed to draw together two collar members (not shown), each of which has a tapered portion for bearing on the shaft 16. The locking bolt ~ .
screws into one of -the collars and has a flange part for bearing on the other collar. The locking bolt is rotated by means of a lever (not shown) similar to the lever 15.
The casting 18 is retained on the shaft 16 by a pin 20 which is located in a groove around the end of the shaft 16 as shown.
The casting 18 accommodates a further shaft 21 which is rotatably arranged within the casting 18 and is capable of being locked against rotation by means of a lock-ing bolt arrangement 22 and lever 23 similar to those pre-. viously described for locking the shaft 16. The shaft 21 is adapted to rotate about an axis y - y at right angles to the axis x - x. A domed cap member 24 is arranged on top of the shaft 21 and i5 retained thereon by a series of radial rivets 25 which are accommodated in radial holes spaced around the cap member 24 and extending through the member 24 and into the shaft 19. The domed càp member 24 bears on a top surface of the casting 18 at 26 and thus retains the shaft 21 against ~: downward movement. Upward movement of the shaft 21 is pre~
vented by a circlip (not shown) arranged in the groove 27 at the bottom end of the shaft 21. A collar member 28 sits on top of the shaft 21 within the cap member 24 and a key (not shown) located in a suitable key-way (not shown) locks the collar against rotation with respect to cap member 2~.
S5~
A ball member 29 is arranged within the domed cap 24 and sits in a par-t spherical cavity in the top of the collar 28. The ball supports a workpiece mounting member 30 which is connected to the ball via a neck portion 31 having an enlarged part 32 which is accommodated in a suitable ca-vity in the workpiece mounting member 30. The member 30 is retained on the enlarged part 32 by a pin (not shown) which passes through a suitable hole in the member 30 and into the enlarged part 32. The pin is arranged on the axis 33. The neck portion 31 is formed integral with the ball 29 and passes through a slot 34 which extends from the top of the cap member 24 down to the base of the cap member. Thus the ball is capable of rotating in the cap member 24 so as to cause the workpiece mounting member 30 to rotate about the axis y - y. Furthermore, the ball member may rotate in a manner causing the neck portion 31 to move down the slot 34 such that the workpiece mountin~ member 30 assumes a posi-tion as shown which is inclined at 90 to the original posi-tion. The workpiece mounting member 30 may also be caused to assume any position therebetween and is locked in the re-quired position by means of a push rod (not shown) located in bore 35 which is forced against the underside of the col- -lar 28 causing the collar to lock against the ball 29. The ; collar is forced upwardly to cause locking of the ball by means of a bolt 39 screwed into the bore 36 so as to force '~ .
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the push rod in an upward direction. The bolt for this purpose is rotated by a lever 37 similar to the levers previously described. It has been found that a ball which is not perfectly round but which has an eccentricity of about seven thousands of an inch in a diameter of about 1-1/2 inches improves locking of the ball and also prevents the workpiece from dropping suddenly as the bolt 39 is loosened.
When the workpiece mounting member 30 is moved to the down-ward position shown whereby it assumes a position disposed at 90 to the horizontal position it is retained against further downward movement by a boss 38 which projects from the cap member 24 through the slot 34. The boss member 38 is attached to the shaft 21 by means of a bolt which passes through the centre of the boss 38 and screws into the shaft 21.
It should be apparent that by rotating the bolt 39 in bore 36 so as to release the force of the push rod (not shown) in bore 35 on the collar 28, the ball 29 is released for movement whereby the workpiece mounting member 30 may be tilted through 90 in the direction of the slot 34. Further-more, the cap member 24 may be rotated by releasing the lock-ing bolt 22 so as to enable the shaft 21 to which the cap mem-ber 24 is rigidly affixed, to rotate about the axis y - y.
, Thus, by a combination of tilting the workpiece mounting mem-ber 30 and rotation of the cap member 24 a workpiece attached s to the member 30 may be oriented in any angular position in a hemisphere above a horizontal plane through the centre of the ball 29. Simply by releasing the casting 18 for ro-tation about the shaft 16, the workpiece may be oriented in any angular position whatsoever. In other words, the work-piece may be oriented in an infinite number of angular posi-tions.
According to a modified form of the embodiment, the shaft 21 may be made longer enabling the workpiece to be raised and lowered merely by sliding the shaft 21 along the axis y - y within the casting 18. Such longitudinal movement of the shaft 21 is restrained by the locking bolt 22 which also serves to lock the shaft 21 against rotational movement.
It will be obvious to those skilled in the art that numerous modifications and variations to the embodiment des-cribed above may be readily effected by persons skilled in the art. In the embodiment described, the workpiece mount-ing member 30 is shown simply as a disc member to which any one of a plurality of different brackets for attaching va-rious transmissions and cylinder heads to the device may be connected. The brackets each comprise a base member for sliding in the channel 40 to be retained therein by a lock-ing member (not shown) which passes through the mounting .: .
' . ' ~
'. '- " ' '' ' : ~
member 30 and engages the base of the bracket. Alternatively, the workpiece mounting member 30 may comprise conventional vice jaws arranged in a manner such that the fixed jaw is connected to the ball 29 and the movable jaw is arranged on the fixed jaw to slide with respect thereto.
Whilst the embodiment above has been described with the device in an orientation wherein the axis x - x is ar-ranged horizontal and the axis y - y vertical, it should be appreciated that the device may be attached to a bench, ma-chine tool or the like in any orientation. For example, the clamp may be a pipe clamp enabling the device to be clamped to a pipe or other circular member in which case it is of-ten desirable to orientate the device in other than the conven-tional position described.
Since various modifications can be made in our in-vention as hereinabove described, and many apparently widely different embodiments of same made within the spirit and scope of the claims without departing from such spirit and scope, it is intended that all matter contained in the accompanying specification shall be interpreted as illustrative only and not in a limiting sense.
- ' . : '' ~ ~ .
Claims
WHAT WE CLAIM AS OUR INVENTION IS:
(1) A work support device comprising; a first member adapted to be attached to a work bench or the like;
a second member rotatably connected to said first member and adapted to rotate relative thereto about a first axis;
first locking means adapted to lock said second member from rotation about said first axis; a third member rotatably connected to said second member and adapted to rotate rela-tive thereto about a second axis; a ball and socket joint connecting said third member to a work piece mounting means, said joint permitting said mounting means to rotate rela-tive to said third member about a third axis and permitting angular displacement of said third axis with respect to said second axis between a position co-incident with said second axis and a position perpendicular to said second axis; sec-ond locking means adapted to lock said work piece mounting means from rotation and angular displacement with respect to said third member; and said ball eccentrically formed to prevent sudden unlocking of said ball as said locking force is removed.
(2) The work support device claimed in Claim 1, wherein said first axis and said second axis are perpendi-cular with respect to one another.
(1) A work support device comprising; a first member adapted to be attached to a work bench or the like;
a second member rotatably connected to said first member and adapted to rotate relative thereto about a first axis;
first locking means adapted to lock said second member from rotation about said first axis; a third member rotatably connected to said second member and adapted to rotate rela-tive thereto about a second axis; a ball and socket joint connecting said third member to a work piece mounting means, said joint permitting said mounting means to rotate rela-tive to said third member about a third axis and permitting angular displacement of said third axis with respect to said second axis between a position co-incident with said second axis and a position perpendicular to said second axis; sec-ond locking means adapted to lock said work piece mounting means from rotation and angular displacement with respect to said third member; and said ball eccentrically formed to prevent sudden unlocking of said ball as said locking force is removed.
(2) The work support device claimed in Claim 1, wherein said first axis and said second axis are perpendi-cular with respect to one another.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA301,669A CA1098555A (en) | 1978-04-21 | 1978-04-21 | Vices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA301,669A CA1098555A (en) | 1978-04-21 | 1978-04-21 | Vices |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1098555A true CA1098555A (en) | 1981-03-31 |
Family
ID=4111304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA301,669A Expired CA1098555A (en) | 1978-04-21 | 1978-04-21 | Vices |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA1098555A (en) |
-
1978
- 1978-04-21 CA CA301,669A patent/CA1098555A/en not_active Expired
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Legal Events
Date | Code | Title | Description |
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MKEX | Expiry |