CN211990637U - Mechanical clamping arm - Google Patents

Abstract

The utility model discloses a mechanical gripper, which is characterized by comprising a power assembly, a first clamping arm, a second clamping arm, an induction rod, an inductor, a bottom plate and a chuck; the power assembly drives the first clamping arm and the second clamping arm to move inwards or outwards; the first clamping arm is provided with the induction rod; the second clamping arm is provided with the inductor for detecting the induction rod; the first clamping arm and the second clamping arm are respectively detachably connected with one bottom plate; each bottom plate is provided with a plurality of preformed holes, and each bottom plate is also movably provided with a chuck matched with the preformed holes; and the two opposite side walls of the clamping heads are provided with profiling notches matched with the workpiece. The utility model has the advantages of simple structure, high universality, low cost and the like, and is more suitable for industrial production.

Description

Mechanical clamping arm

Technical Field

The utility model belongs to the technical field of the punch press equipment technique and specifically relates to a mechanical tong.

Background

The punching machine is a stamping type press machine and is mainly used for stamping a workpiece (generally a sheet metal part) into a specific shape; in national production, compared with the traditional machining, the stamping process has the advantages of material and energy conservation, high efficiency, low technical requirement on operators and the like, so that the stamping process has more and more extensive application.

In the punching operation, a workpiece is usually held by a mechanical gripper. However, the clamping arm of the existing mechanical gripper and the clamping end part of the clamping arm matched with the workpiece are integrally formed; when a workpiece processed by the punch press changes, the whole clamping arm needs to be directly replaced to match with a new workpiece, even the whole set of mechanical clamping arms needs to be replaced, so that the replacement cost of the existing mechanical clamping arms is overhigh, and the spare clamping arms also have the defects of large occupied turnover space, inconvenience in transportation and the like; meanwhile, the material cost and the processing cost of the clamping end part are high, and the manufacturing cost of the mechanical clamping hand is directly high due to the mode that the clamping arm and the clamping end part on the clamping arm are integrally formed.

Thus, the prior art is subject to improvement and advancement.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem to the problem among the above-mentioned prior art, provide a mechanical tong, this mechanical tong will with work piece complex centre gripping tip independent shaping and movable mounting on the centre gripping arm, when the work piece to the difference, can change different chucks in a flexible way.

In order to solve the technical problem, the utility model adopts a technical proposal that the mechanical gripper comprises a power component, a first clamping arm, a second clamping arm, an induction rod, an inductor, a bottom plate and a chuck; the power assembly drives the first clamping arm and the second clamping arm to move inwards or outwards; the first clamping arm is provided with the induction rod; the second clamping arm is provided with the inductor for detecting the induction rod; the first clamping arm and the second clamping arm are respectively detachably connected with one bottom plate; each bottom plate is provided with a plurality of preformed holes, and each bottom plate is also movably provided with a chuck matched with the preformed holes; and the two opposite side walls of the clamping heads are provided with profiling notches matched with the workpiece.

As a further elaboration of the above technical solution:

in the technical scheme, the power assembly comprises a shell and a clamping cylinder, the clamping cylinder is arranged on the shell, and the clamping cylinder drives the first clamping arm and the second clamping arm.

In the technical scheme, the second clamping arm is provided with an inductor shield; the inductor is arranged in the inductor shield, and a top plate of the inductor shield is also provided with a pressing plate; the lower end face of the free end of the pressure plate is matched with the induction rod; the pressing plate is also provided with a runway hole.

In the above technical scheme, the lower part of each bottom plate is provided with a limiting convex rib matched with the corresponding first clamping arm or the corresponding second clamping arm.

In the technical scheme, the profiling notches of the two chucks are V-shaped, and a plurality of anti-skid stripes are arranged on the profiling notches.

In the technical scheme, the clamping device further comprises fixed blocks, the upper side and the lower side of each bottom plate are respectively provided with one fixed block and one clamping head, and the corresponding fixed blocks are detachably connected with the clamping heads through two connecting pieces; the number of the preformed holes is two, and a plurality of groups of preformed holes for the corresponding two connecting pieces to pass through are arranged on each bottom plate.

In the above technical solution, the sensor is an infrared sensor.

The beneficial effects of the utility model reside in that:

1. through set up induction rod and the inductor of mutually supporting respectively on first centre gripping arm and second centre gripping arm, can detect the relative position between two centre gripping arms to judge whether two chucks that correspond press from both sides tightly or loosen the work piece, and then improve and be equipped with a yields in the punch press production process of machinery tong.

2. The first clamping arm and the second clamping arm are respectively provided with a clamping head; in the process of manufacturing the mechanical clamping hand, only the clamping head is made of materials with higher cost and a processing technology, and the mechanical clamping hand has the advantage of low manufacturing cost; in the process of production operation of the punch, if the clamping requirement on the workpiece changes, only the corresponding chuck needs to be replaced, so that the punch has the advantage of lower part replacement cost; furthermore, compared with the whole group of clamping arms, the single chuck is used as a spare part, and the clamping device has the advantages of small occupied turnover space, convenience in transportation and the like.

3. Through set up a plurality of preformed holes that are used for the movable mounting chuck on the bottom plate, with chuck movable mounting to the interval that can adjust two chucks on the different preformed holes conveniently, and then be applicable to not unidimensional work piece, have the advantage that the commonality can be good.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

Fig. 1-2 illustrate a specific embodiment of a mechanical gripper according to the present invention, referring to fig. 1-2, a mechanical gripper comprises a power assembly 1, a first clamping arm 2, a second clamping arm 3, an induction rod 4, an inductor 5, a bottom plate 6 and a chuck 7. The power assembly 1 drives the first clamping arm 2 and the second clamping arm 3 to be closed or opened outwards, in this embodiment, the first clamping arm 2 and the second clamping arm 3 are in a straight strip shape, and the first clamping arm 2 and the second clamping arm 3 are arranged in parallel. The first clamping arm 2 is provided with an L-shaped plate 8, and the horizontal part of the L-shaped plate 8 is fixedly connected with the first clamping arm 2; the vertical part of the L-shaped plate 8 is fixedly connected with the induction rod 4. The second clamping arm 3 is provided with the sensor 5 for detecting the induction rod 4, in this embodiment, the sensor 5 is an infrared sensor, the infrared sensor is connected to an industrial control system of a punch press, and the industrial control system of the punch press can judge whether the first clamping arm 2 and the second clamping arm 3 complete corresponding inward closing or outward opening actions by detecting whether the induction rod 4 blocks the infrared sensor; in addition, according to the actual use requirement, the sensor 5 can also be a groove type photoelectric sensor or any one of the prior art sensors which can be used for detecting the position information of the sensing rod 4. The first clamping arm 2 and the second clamping arm 3 are detachably connected with one base plate 6 respectively, the base plate 6 and the clamping arm 3 can be detachably connected in any one of the prior art, including but not limited to bolt connection and buckle connection, and preferably, the bolt connection is adopted. Each bottom plate 6 is provided with a plurality of preformed holes 9, and each bottom plate 6 is also movably provided with a chuck 7 matched with the preformed holes 9; the opposite side walls of the two chucks 7 are provided with profiling notches 10 matched with a workpiece; in the actual production operation of punch press, by power component 1 drive first centre gripping arm 2 with second centre gripping arm 3 is closed or is opened outward, correspondingly, two chuck 7 presss from both sides tightly or loosens the work piece, can also be through inciting somebody to action chuck 7 movable mounting is different realize two on the preformed hole 9 the adjustment of chuck 7 interval, and then be used for the not unidimensional work piece of clamping, increased the utility model discloses a commonality.

Further, the power assembly 1 includes a housing 11 and a clamping cylinder 12; the utility model is connected and fixed with the punch through the shell 11; the clamping cylinder 12 is arranged on the shell 11; the clamping cylinder 12 is connected to an external air source and drives the first clamping arm 2 and the second clamping arm 3 to be internally closed or externally expanded.

Further, an inductor shield 13 is arranged on the second clamping arm 3; the inductor 5 is arranged in the inductor shield 13; in practical use, the inductor shield 13 can protect the inductor 5 well. A pressure plate 14 is also arranged on the top plate of the inductor shield 13; the lower end surface of the free end of the pressure plate 14 is matched with the induction rod 4; still be equipped with runway hole 15 on the clamp plate 14, in this embodiment, the lower terminal surface of clamp plate 14 with the up end laminating of response pole 4 prevents first centre gripping arm 2 with when relative motion takes place for second centre gripping arm 3, first centre gripping arm 2 relative with second centre gripping arm 3 is to the upswing, and then influences two the clamping effect of chuck 7 has increased the utility model discloses a stability and reliability.

Further, each the lower part of bottom plate 6 all be equipped with the first centre gripping arm 2 that corresponds or the spacing protruding muscle 16 of second centre gripping arm 3 complex, in this embodiment, each the lower part of bottom plate 6 all is equipped with one spacing protruding muscle 16, first centre gripping arm 2 with respectively support on the lateral wall that second centre gripping arm 3 is relative to lean on to have a correspondence spacing protruding muscle 16 plays certain counterpoint effect, has not only improved the cooperation precision, still is convenient for install.

Furthermore, the cross sections of the profiling notches 10 of the two chucks 7 are both V-shaped, and the profiling notches 10 are provided with a plurality of anti-skid stripes 17, so that the friction force between the chucks 7 and the workpiece is increased, and the clamping of the workpiece is increased firmly and stably.

Further, the device also comprises fixed blocks 18, the upper side and the lower side of each bottom plate 6 are respectively provided with one fixed block 18 and one chuck 7, and the corresponding fixed blocks 18 and the chucks 7 are detachably connected through two connecting pieces (not shown in the figure); in this embodiment, the two connecting pieces are bolts, the heads of the two bolts are matched with the countersunk holes 19 at the two ends of the fixed block 18, and the screw sections of the two bolts penetrate through the countersunk holes 19 and are movably screwed with the chuck 7; two of the preformed holes 9 on the bottom plate 6 are arranged in a group of a plurality of groups; every two of a set of preformed hole 9 supplies one respectively the bolt passes, makes fixed block 18 the bottom plate 6 with chuck 7 forms sandwich structure's connection structure, through wear to establish the bolt different can change in the preformed hole 9 chuck 7 is in position on the bottom plate 6.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims (7)

1. A mechanical gripper is characterized by comprising a power assembly, a first clamping arm, a second clamping arm, an induction rod, an inductor, a bottom plate and a chuck; the power assembly drives the first clamping arm and the second clamping arm to move inwards or outwards; the first clamping arm is provided with the induction rod; the second clamping arm is provided with the inductor for detecting the induction rod; the first clamping arm and the second clamping arm are respectively detachably connected with one bottom plate; each bottom plate is provided with a plurality of preformed holes, and each bottom plate is also movably provided with a chuck matched with the preformed holes; and the two opposite side walls of the clamping heads are provided with profiling notches matched with the workpiece.

2. The mechanical gripper of claim 1, wherein the power assembly comprises a housing and a clamping cylinder, the housing having the clamping cylinder thereon, the clamping cylinder driving the first clamping arm and the second clamping arm.

3. The mechanical gripper of claim 2, wherein the second gripper arm is provided with an inductor shield; the inductor is arranged in the inductor shield, and a top plate of the inductor shield is also provided with a pressing plate; the lower end face of the free end of the pressure plate is matched with the induction rod; the pressing plate is also provided with a runway hole.

4. A mechanical tong according to claim 3, wherein the lower part of each base plate is provided with a limiting rib which is matched with the corresponding first clamping arm or the corresponding second clamping arm.

5. The mechanical gripper of claim 1, wherein the profiling notches of the two grippers are V-shaped, and the profiling notches are provided with a plurality of anti-slip stripes.

6. The mechanical tong of any one of claims 1 to 5, further comprising fixing blocks, wherein one fixing block and one clamping head are respectively arranged on the upper side and the lower side of each bottom plate, and the corresponding fixing blocks are detachably connected with the clamping heads through two connecting pieces; the number of the preformed holes is two, and a plurality of groups of preformed holes for the corresponding two connecting pieces to pass through are arranged on each bottom plate.

7. A mechanical gripper according to claim 6, wherein said sensor is an infrared sensor.

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