CN112976027B

CN112976027B - Adjustable clamping jaw

Info

Publication number: CN112976027B
Application number: CN202110207152.9A
Authority: CN
Inventors: 汪建斌; 程爱玉; 汪伟; 张焱
Original assignee: Zhongjingxing Robot Changzhou Co ltd
Current assignee: Zhongjingxing Robot Changzhou Co ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2022-07-19
Anticipated expiration: 2041-02-25
Also published as: CN112976027A

Abstract

The invention discloses an adjustable clamping jaw, wherein a pair of clamping jaw mechanisms are symmetrically arranged on the left side and the right side of an upright post, each clamping jaw mechanism comprises a pair of support guide rails which are arranged in parallel, each support guide rail is connected with the upright post through a support, a support guide rail through hole is formed in each support guide rail, a guide groove is formed in each support guide rail, a sliding block slides in each guide groove, a telescopic rod through hole is formed in each sliding block, a telescopic rod is matched with each telescopic rod in each telescopic rod through hole in a sliding mode, a guide pillar is arranged at the upper part of each sliding block, each guide pillar is matched with each sliding support block in a sliding mode, and the top of each telescopic rod is connected with each sliding support block; simultaneously, the diameter of the part and the distance from the upright post can be adjusted so as to facilitate grabbing.

Description

Adjustable clamping jaw

Technical Field

The invention relates to an adjustable clamping jaw.

Background

As shown in fig. 5, in the prior art, a clamping jaw for gripping a cylindrical part has both an upward lifting action and an inward contracting action when gripping the part, so that the part has both an upward moving process and an inward sliding process with respect to an original support, and the inward sliding process causes surface friction between the part and the original support, thereby forming scratches or scratches on the outer surface of the part with insufficient surface hardness. Therefore, the structure of the existing clamping jaw is necessarily improved, so that when the clamping jaw clamps the cylindrical part, only the upward lifting action is performed, the part is only vertically moved upwards relative to the original support, and the surface of the part is prevented from being scratched.

Disclosure of Invention

In order to solve the problem that the part is easy to scratch by the clamping jaw in the prior art, the invention provides the adjustable clamping jaw which enables the part to be separated from the original support in the vertical moving process relative to the original support.

In order to solve the technical problems, the invention provides the following technical scheme:

the utility model provides a clamping jaw with adjustable, includes the stand, and the stand left and right sides is provided with a pair of clamping jaw mechanism symmetrically, clamping jaw mechanism includes a pair of parallel arrangement's support rail, and support rail passes through the support and is connected with the stand.

The supporting guide rail is internally provided with a supporting guide rail through hole, a guide groove along the axial direction of the supporting guide rail is arranged in the supporting guide rail at the top of the supporting guide rail through hole, a sliding block slides in the guide groove, a telescopic rod through hole is arranged on the sliding block, a telescopic rod is matched with the inside of the telescopic rod through hole in a sliding mode, a guide pillar perpendicular to the supporting guide rail is arranged on the upper portion of the sliding block, a sliding supporting block is matched with the outside of the guide pillar in a sliding mode, the top of the telescopic rod is connected with the sliding supporting block, the upper supporting face of the sliding supporting block is perpendicular to the upper supporting face of the supporting guide rail, and the sliding supporting block moves along the direction perpendicular to the supporting guide rail.

Furthermore, a second guide rod is connected between the lower ends of the pair of telescopic rods on the same side of the upright column, the second guide rod is in sliding fit with a second guide hole in the second guide block, and the sliding direction of the second guide rod in the second guide hole is consistent with the axial direction of the support guide rail.

Furthermore, the side face of the second guide block is connected with a second piston rod of a second air cylinder, and the second air cylinder is arranged on the stand column and drives the second guide block to move horizontally.

The upper end of the further sliding block is connected with a guide rod, the guide rod I is in sliding fit with the guide hole I of the guide block I, the side face of the guide block I is connected with a cylinder I through a piston rod I, the cylinder I is connected with the upright post through a cylinder support, and the cylinder drives the guide block I to vertically move so as to drive the sliding block to slide in the guide groove in a reciprocating mode.

Furthermore, the upper end of the sliding block is connected with the first guide rod.

The invention has the following beneficial effects:

when the intersection lines between the upper side supporting surface of the sliding supporting block and the vertical surface of the upper side supporting surface of the supporting guide rail are adjusted to be positioned right below the center of the cylindrical part, the upright post is lifted, so that the part can only be lifted without moving in other directions, and the surface scratch between the part and the original support is avoided.

When a cylinder part with a larger diameter needs to be supported, the guide block is driven by the cylinder two to horizontally move towards the outer side, so that the sliding support block slides upwards, and the part with the larger diameter can be clamped by the sliding support block and the support guide rail.

And thirdly, when parts on two sides of the upright are far away from each other horizontally, the first air cylinders on two sides of the upright can be adjusted simultaneously to drive the first guide block to move vertically upwards, so that the sliding block and the sliding support block on the sliding block slide towards the outer side far away from the upright along the axis of the support guide rail, the distance between the intersection line of the upper side support surface of the sliding support block, the upper side support surface of the support guide rail and the vertical surface of the support guide rail and the upright is increased, and the parts can be conveniently grabbed.

And the sliding direction of the second guide rod in the second guide hole is consistent with the axial direction of the support guide rail, so that the second guide rod can smoothly follow and move in the second guide hole in the axial movement process of the sliding support block along the support guide rail, and the movement interference between the second guide rod and the second guide hole is prevented in the process.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a three-dimensional block diagram of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a bottom three-dimensional view of the present invention;

FIG. 4 is a side view of the present invention;

FIG. 5 is a schematic view of a prior art jaw configuration;

FIG. 6 is a schematic view of the angle between the sliding support block and the support rail according to the present invention;

FIG. 7 is a schematic view of the present invention gripping a pair of parts;

FIG. 8 is a schematic view of the invention gripping a larger diameter cylindrical part;

fig. 9 is a schematic view of the invention gripping a pair of parts at a greater horizontal distance.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Examples

As shown in fig. 1-4, an adjustable clamping jaw comprises an upright post 1, a pair of clamping jaw mechanisms is symmetrically arranged on the left side and the right side of the upright post 1, each clamping jaw mechanism on each side comprises a pair of supporting guide rails 2 which are aligned in the front and back direction and are arranged in parallel, each supporting guide rail 2 is connected with the upright post 1 through a pair of parallel brackets 3, and the brackets 3 are arranged perpendicular to the upright post 1.

Each support guide rail 2 is internally provided with a support guide rail through hole 4 with a long-strip-shaped section, a guide groove 5 along the axial direction of the support guide rail 2 is arranged in the support guide rail 2 at the top of the support guide rail through hole 4, a slide block 6 is arranged in each guide groove 5 in a sliding manner, the two slide blocks 6 are parallel and front and back to be aligned, the slide block 6 is matched with the inner wall of the guide groove 5 in a sliding manner through convex ribs on the front and back sides, the upper surface of the slide block 6 is lower than the upper side supporting surface of the support guide rail 2, each slide block 6 is respectively provided with a telescopic rod through hole 7 with an axis vertical to the upper side supporting surface of the support guide rail 2, a telescopic rod 8 is arranged in the telescopic rod through hole 7 in a sliding manner, the diameter of the telescopic rod 8 is smaller than the width of the support guide rail through hole 4 and the distance between a pair of supports 3 which are arranged in parallel, so that the telescopic rod 8 passes through the support guide rail through hole 4 and between the pair of supports. The upper part of each slide block 6 is respectively provided with a guide post 9 which is vertical to the support guide rail 2, the outer side of each guide post 9 is in sliding fit with a sliding support block 10, the guide posts 9 are arranged in through holes in the corresponding sliding support blocks 10 in a penetrating way, the two sliding support blocks 10 are arranged in parallel and in a front-back alignment way, and the top of the telescopic rod 8 is fixedly connected with the bottom of the sliding support block 10 and is suitable for driving the sliding support block 10 to slide along the guide posts 9. During the sliding of the shoe 10 along the guide post 9 and the slide 6 along the guide slot 5, the upper support surface of the shoe 10 is always perpendicular to the upper support surface of the support rail 2.

The pair of telescopic rods 8 on the same side of the upright post 1 are arranged in parallel and aligned front and back, a horizontal cylindrical guide rod II 11 is connected between the lower ends of the telescopic rods, the guide rod II 11 is in sliding fit in a guide hole II 13 in the guide block II 12, and the sliding direction of the guide rod II 12 in the guide hole II 13 is consistent with the axial direction of the support guide rail 2. The lower side surface of the second guide block 12 is connected with a second piston rod 15 of a second air cylinder 14, and the second air cylinder 14 is arranged on the upright post 1 and can drive the second guide block 12 to horizontally move.

The upper end of each sliding block 6 is connected with a horizontal cylindrical guide rod I16, the guide rod I16 penetrates through and is in sliding fit in a guide hole I18 of a guide block I17, the lower side face of the guide block I17 is connected with a cylinder I20 through a piston rod I19, the cylinder I20 is connected with the upright post 1 through a cylinder support 21, and the cylinder I20 can drive the guide block I17 to vertically move so as to drive the sliding block 6 to perform reciprocating sliding in the guide groove 5 through the guide hole I18 and the guide rod I16.

FIG. 5 is a schematic view of a prior art jaw; wherein 101 is a clamping jaw and 102 is a part. The part 102 is gripped by the jaws 101, and during the gripping process, the part 102 is subjected to both a lifting movement and a lateral displacement, so that surface sliding friction exists between the part 102 and the original support (not shown) as well as between the jaws 101.

As shown in fig. 6-7, since the upper supporting surface of the sliding supporting block 10 is perpendicular to the upper supporting surface of the supporting rail 2, and the sliding supporting block 10 moves in the direction perpendicular to the supporting rail 2, no matter how the sliding supporting block 10 slides, the upper supporting surface and the upper supporting surface of the supporting rail 2 are perpendicular, and the included angle between the upper supporting surface and the vertical surface is 45 degrees, so as to adjust the position of the upright post 1, and when the intersecting line of the three surfaces is located right below the center of the cylindrical part, the upright post 1 is lifted, so that the part can only vertically lift when being clamped, and the movement in other directions can not occur, thereby avoiding the surface scratch between the part and the original supporting object.

When a cylinder part with a larger diameter needs to be supported, the second guide block 12 is driven by the second air cylinder 14 to horizontally move outwards, so that the sliding support block 10 slides upwards, and the sliding support block and the support guide rail 2 can clamp the part with the larger diameter, as shown in fig. 7 and 8.

When the horizontal distance between the parts on both sides of the upright 1 is far, the cylinders one 20 on both sides of the upright 1 can be adjusted simultaneously, each cylinder one 20 drives the corresponding guide block one 17 to move vertically upwards, so that the sliding block 6 and the sliding support block thereon slide towards the outer side far away from the upright 1 along the axis of the 10 support guide rail 2, and the distance between the intersection line between the upper support surface of the sliding support block 6, the upper support surface of the support guide rail and the vertical surface and the upright is increased, thereby facilitating the grabbing of the parts, as shown in fig. 7 and 9.

The sliding direction of the second guide rod 11 in the second guide hole 13 is consistent with the axial direction of the support guide rail 2, so that the second guide rod 11 can smoothly follow and move in the second guide hole 13 in the process that the sliding support block 10 follows the slider 6 to move along the axial direction of the support guide rail 2, and the motion interference between the second guide rod 11 and the second guide hole 13 in the process can be prevented.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable clamping jaw is characterized by comprising an upright post, wherein a pair of clamping jaw mechanisms are symmetrically arranged on the left side and the right side of the upright post, each clamping jaw mechanism comprises a pair of support guide rails which are arranged in parallel, and the support guide rails are connected with the upright post through a support; a support guide rail through hole is formed in the support guide rail, a guide groove along the axial direction of the support guide rail is formed in the support guide rail at the top of the support guide rail through hole, a sliding block slides in the guide groove, a telescopic rod through hole is formed in the sliding block, a telescopic rod is matched in the telescopic rod through hole in a sliding mode, a guide pillar perpendicular to the support guide rail is arranged at the upper portion of the sliding block, a sliding support block is matched outside the guide pillar in a sliding mode, the top of the telescopic rod is connected with the sliding support block, the upper side support surface of the sliding support block is perpendicular to the upper side support surface of the support guide rail, and the sliding support block moves along the direction perpendicular to the support guide rail; the top of the telescopic rod is fixedly connected with the bottom of the sliding supporting block and is suitable for driving the sliding supporting block to slide along the guide pillar; in the sliding process of the sliding support block along the guide post and the sliding block along the guide groove, the upper side support surface of the sliding support block is always vertical to the upper side support surface of the support guide rail; the included angles between the upper side supporting surfaces of the sliding supporting blocks and the vertical surface of the supporting guide rails are all 45 degrees;

A second guide rod is connected between the lower ends of the pair of telescopic rods on the same side of the upright column, the second guide rod is in sliding fit with a second guide hole in the second guide block, and the sliding direction of the second guide rod in the second guide hole is consistent with the axial direction of the support guide rail; the side surface of the second guide block is connected with a second piston rod of a second air cylinder, and the second air cylinder is arranged on the upright post and drives the second guide block to move horizontally;

the upper end of the sliding block is connected with a guide rod I, the guide rod I penetrates through and is in sliding fit with a guide hole I of the guide block I, the side face of the guide block I is connected with a cylinder I through a piston rod I, the cylinder I is connected with the upright post through a cylinder support, and the cylinder drives the guide block I to vertically move so as to drive the sliding block to slide in the guide groove in a reciprocating mode.

2. An adjustable clamping jaw according to claim 1, wherein the two slide blocks are arranged in parallel and aligned front to back, the slide blocks being in sliding engagement with the inner walls of the guide channels by means of ribs on both the front and back sides of the slide blocks.

3. The adjustable jaw of claim 2, wherein the upper end of the slide is connected to the first guide bar.