CN1013751B

CN1013751B - Vise with multi-freedom spherical jaws

Info

Publication number: CN1013751B
Application number: CN 89101693
Authority: CN
Inventors: 范潮来
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-03-25
Filing date: 1989-03-25
Publication date: 1991-09-04
Also published as: CN1045938A

Abstract

The present invention relates to a novel bench clamp which adopts a multi-freedom spherical movable clamp jaw. A movable spherical clamp jaw of the present invention comprises a movable spherical body clamping block, an inner spherical bowl and an outer spherical bowl, wherein inner spherical surfaces which are inosculated with a movable spherical body are respectively arranged on the movable spherical body clamping block, the inner spherical bowl and the outer spherical bowl. After assembly, the movable spherical body can rotate in optaional direction according to the shapes of work pieces, the present invention is suitable for clamping work pieces with complex shapes, and a spherical head block can be pulled against the inner spherical bowl by not using the outer spherical bowl but using an extension spring.

Description

Vise with multi-freedom spherical jaws

The present invention relates to a kind of novel bench vice, it has spherical moving jaw, is suitable for clamping the workpiece of different shape complexity.

United States Patent (USP) 4,632, the moving jaw that discloses a kind of bench vice No. 374, it is made up of 4 half garden clevis pieces, and deep-slotted chip breaker is arranged on it, and under the restriction of jaw alignment pin, half garden clevis piece can be according to the automatic locating clip clamping of workpieces of workpiece shape.

The applicant had once submitted to a patent application (application number 87108066) wherein also to adopt half garden clevis piece on November 28th, 1987 to Patent Office of the People's Republic of China, and the connected mode of its fixture block and jaw is to adopt the mode of dovetail groove.

But in above-mentioned two kinds of jaws, its half garden clevis piece can only be done the swing of a direction, promptly has only one degree of freedom, and the workpiece more complicated for structure then can not clamp effectively.

The purpose of this invention is to provide a kind of novel bench vice, its jaw adopts spherical movable clip block, this sphere movable clip block can be done the rotation of any direction according to the workpiece shape, promptly has a plurality of frees degree, thereby can locate automatically and the workpiece of pinch form complexity effectively.

The present invention adopts four movable spheroids as fixture block on the bench vice jaw, it is contained between the inside and outside ball bowl on the jaw, when the fixture block clamping work pieces, spherical fixture block can be made any direction according to the workpiece shape and rotate, automatically locate and clamping work pieces, it be specially adapted to clamp common flat pliers mouth and half garden piece moving jaw the more complicated workpiece of shape that can not clamp, and, can also adopt jaw clamping force display unit in order to guarantee that spherical jaws has enough clamping forces.

The spherical fixture block of bench vice jaw of the present invention is compared with half garden fixture block jaw with existing flat pliers mouth, has the advantage wider to the adaptability of workpiece, effectively the workpiece of pinch form complexity.

Below in conjunction with accompanying drawing, the embodiment of bench vice jaw of the present invention is described.

Schematic diagram when Fig. 1 is the spherical fixture block clamping work pieces of bench vice jaw of the present invention.

Fig. 2 is the front view of bench vice jaw shown in Figure 1.

Fig. 3 is along A-A line profile among Fig. 2.

Fig. 4 is the stereogram of spherical fixture block among Fig. 3.

Fig. 5 is the profile of ectosphere bowl among Fig. 3.

Fig. 6 is the profile of endosphere bowl among Fig. 3.

Fig. 7 is the profile of another embodiment of the present invention.

Fig. 8 is the schematic diagram of the embodiment of band clamping force display unit of the present invention.

From Fig. 1～3, as seen, a jaw seat 3 is arranged respectively on the moving caliper 2 of bench vice of the present invention and the fixed caliper 19, two circular dimples are respectively arranged on the jaw seat 3, be used to hold two movable spheroid fixture blocks and inside and outside ball bowl assembly.

Movable spheroid fixture block 4 is the garden sphere, and a figuratum plane 5 is arranged on it, is used for clamping work pieces 1(and sees Fig. 1).

Endosphere bowl 7 is a garden shape part, and its external diameter is consistent with the internal diameter of jaw seat 3 dimples, in jaw seat 3 dimples of packing into, has a butt endosphere concave surface 8(who matches with the sphere of movable spheroid fixture block 4 to see Fig. 6 on the endosphere bowl 7).

The external diameter of ectosphere bowl 9 is consistent with endosphere bowl 7, has the endosphere concave surface 10(of a butt to see Fig. 5 on it), its spherical concave surface 10 matches with the sphere of movable spheroid fixture block 4.After the butt end face 11 of its spherical concave surface 10 should make the spherical jaws assembling, movable spheroid fixture block 4 can be outwards outstanding a part of from the butt end.

During assembling, earlier four endosphere bowls 7 are respectively charged in the spherical jaws seat 3, four the movable balls clevis pieces 4 of packing into then, load onto four ectosphere bowls 9 at last, with screw 12 ectosphere bowl 9 is fixed on the jaw seat 3 again, make that movable balls clevis piece 4 is unlikely to be deviate from, in, ectosphere bowl 7,9 after butt joint, form one with the consistent spherical inner chamber of movable balls clevis piece 4 profiles, spherical fixture block 4 can be done the rotation of any direction in this chamber, the part of spherical fixture block 4 (part on band plane 5) is from the butt end face 11 protruding parts of ectosphere bowl 9, in order to holding workpiece, jaw seat 3 is fixed on fixed caliper 19 and the moving caliper 2 with screw 6 respectively.

When jaw clamps irregular workpiece 1, spherical fixture block 4 has the face 5 of groove to contact with workpiece 1 surface, spherical fixture block 4 can be made the rotation (see figure 1) of any direction according to the surface of the work shape, can locate automatically and clamping work pieces, particularly can clamp the complex-shaped workpiece that common flat pliers mouth and half garden sliding jaw can't clamp, as shown in Figure 1 with vertical plane α is arranged ₁And α ₂The workpiece of angled surfaces.

Fig. 7 is the another embodiment of the spherical fixture block of the present invention, wherein omitted the ectosphere bowl, its spherical fixture block 4 has a conical cavity 20, and a pin 13 is arranged in the cavity, and it is fixed in two pin-and-holes at the bottom of the cavity, an extension spring 14, the one end colludes in the groove at pin 13 middle parts, and the other end colludes in two holes on packing ring 15, and the pulling force of spring 14 abuts against on the concave surface of endosphere bowl spherical fixture block, make spherical fixture block do to rotate arbitrarily, and unlikelyly deviate from according to the shape of workpiece.

Fig. 8 is one embodiment of the present of invention, because the spheroid jaw is compared with common jaw when clamping the workpiece of complicated shape, it is subjected to force direction comparatively complicated (as Fig. 1 arrow P ₁And P ₂Shown in), this is with regard to having produced the problem that can a clamping force that be applied on the workpiece reach a desirable value, because the clamping force of spherical jaws is too small, it is easily loosening that workpiece adds man-hour, clamping force excessive then fragile workpiece.So, in order to measure the value that spherical jaws is applied to the clamping force on the complex-shaped workpieces, this bench vice can adopt a clamping force display unit, for example can adopt a liquid crystal digital display board and dynamometry foil gauge, as shown in Figure 8, this foil gauge 16 is attached on the bench vice leading screw, an electronic integration block 17 is contained in the caliper inner chamber 22, a liquid crystal digital display board 18 is contained on the caliper, and when the spherical jaws clamping work pieces, leading screw is subjected to pulling force, foil gauge 16 is passed to electronic integration block 17 with the pulling force signal, and pressure value is presented on the LCD panel 18, make the operator can come the operating physical force of joystick according to pressure data, select suitable clamping force.

Bench vice of the present invention can have multiple modification, does not all break away from the present invention's scope.

Claims

1, a kind of bench vice, its jaw adopts spherical moving jaw, it is characterized in that: comprise some movable balls clevis pieces 4; Endosphere bowl 7 and ectosphere bowl 9, the interior concave spherical surface 8 that has the sphere with spherical fixture block to match on the endosphere bowl, concave spherical surface 10 in one butt that matches with the sphere of spherical fixture block is also arranged on the ectosphere bowl: movable balls clevis piece 4 is arranged in the spherical inner chamber that inside and outside ball bowl 7,9 dock formation, can do the rotation of any direction according to the workpiece shape, spherical fixture block 4 figuratum sides can be from the concave spherical surface butt end face 11 protruding parts of ectosphere bowl 9.

2, the described bench vice of claim 1 is characterized in that: the ectosphere bowl 9 of endosphere bowl 7 is contained in the dimple of jaw seat 3, by screw 12 ectosphere bowl 9 is fixed on the jaw seat 3, and jaw seat 3 is fixed on movable and the fixed caliper by screw 6.

3, the described bench vice of claim 1 is characterized in that, this jaw has an extension spring 14, and these extension spring two ends link to each other with caliper with spherical fixture block 14 respectively, in order to spherical fixture block 4 is drawn on the sphere that leans against the endosphere bowl.