Mechanical arm gripper

Abstract

The mechanical arm gripper comprises a main body and a dual-purpose air pump, clamping jaws are arranged on the left side and the right side of the bottom end of the main body, the clamping jaws are rotationally connected with the main body, a connecting base is fixed to the inner sides of the clamping jaws, a suction cup is fixed to the end, away from the clamping jaws, of the connecting base, and a connecting hose is fixed to the top end of the connecting base in a sealed mode. An electronic three-way valve is connected to the top end of the connecting hose in a sealed mode, and the dual-purpose air pump is fixed to the top of the front end of the main body and connected with the electronic three-way valve through an air channel. Compared with an existing mechanical arm gripper, the mechanical arm gripper is provided with a clamping and adsorption dual-fixing mechanism, workpieces can be effectively grabbed, the workpieces are prevented from falling off, the grabbing firmness of the mechanical arm gripper is improved, meanwhile, the mechanical arm gripper is provided with a rotating mechanism and a weighing mechanism, the angle of the clamping mechanism is conveniently adjusted, and the mechanical arm gripper is convenient to use. And the weight of the workpieces grabbed by the device can be detected, so that workers can conveniently screen unqualified workpieces.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial robot technical field, concretely is a mechanical arm gripper. BACKGROUND

[0002] With the gradual maturation of the related technology in the field of automation, in order to reduce labor costs and improve production efficiency, factory realizes full automation production is the main trend at present.Mechanical arm is a kind of robot commonly used in full automation production, some existing mechanical hands are through the formation of negative pressure between suction cup and flange cover workpiece surface to catch flange cover workpiece, but dust and debris exist on the surface of flange cover workpiece, and in the process of catching, the above impurities are located between suction cup and flange cover workpiece, so that the gap between suction cup and flange cover workpiece is prone to cause the failure of catching due to insufficient adsorption force.Some mechanical grippers are through the contact of two opposite surfaces of clamping jaw and flange cover workpiece to apply pressure to realize clamping operation, but when the contact surface of flange cover workpiece is relatively smooth, the friction between contact surface and clamping jaw is not enough, which is easy to cause flange cover workpiece to fall off and cause flange cover workpiece to knock, thereby leading to poor product quality.

[0003] The patent with the name of a kind of mechanical arm gripper and the announcement number of china authorization CN220362590U, the device includes vertical push column, the outer side of push column is equipped with annular shell, at least three clamping jaws are uniformly distributed in annular on the outer side of push column, the bottom end of clamping jaw is equipped with the horizontal positioning platform towards the side of push column, the top end of clamping jaw can be horizontally inserted into the inner side of shell, at least three transmission members that can drive clamping jaw to horizontally translate are equipped on shell, at least three drive structures that can provide power to transmission member are equipped on push column, the utility model has the advantages of simple structure, and the flange cover workpiece can be integrated with positioning and catching function, and the problem that existing mechanical arm gripper is difficult to meet the requirements of stable and lossless catching and positioning of flange cover workpiece is solved.

[0004] Although the above-mentioned device integrates positioning and catching functions, the device still has some problems when in use:

[0005] 1. The device does not have a vacuum adsorption mechanism and a flexible contact structure, when the device clamps relatively smooth objects, it is easy to slip, and the clamping jaw is easy to scratch the surface of the workpiece.

[0006] 2. The device does not have a weighing mechanism, and cannot weigh the workpiece, which is not conducive to the work personnel to check the unqualified workpiece that is too heavy or too light.

[0007] In view of the above situation, technical innovation is carried out on the basis of the existing mechanical arm gripper. UTILITY MODEL CONTENTS

[0008] The utility model discloses a mechanical arm gripper to solve the problem in the above background technology.

[0009] To realize above-mentioned purpose, the utility model provides the following technical scheme: a kind of mechanical arm gripper, including main part and dual-purpose air pump, the bottom end left and right sides of main part are all provided with clamping jaw, and clamping jaw is rotationally connected with main part, the inside of clamping jaw is fixed with connecting seat, and the end of connecting seat away from clamping jaw is fixed with suction cup, the top of connecting seat is sealingly fixed with connecting hose, and the top of connecting hose is sealingly connected with electronic three-way valve, the front end top of main part is fixed with dual-purpose air pump, and dual-purpose air pump and electronic three-way valve are connected by gas circuit, the top of clamping jaw is rotationally connected with telescopic link.

[0010] Further, the end of telescopic link is rotationally connected with main part, and telescopic link can be pneumatic, hydraulic or electric drive.

[0011] Further, the suction cup is annular, and the suction cup is made of silica gel.

[0012] Further, the top of main part is fixed with servo turntable, and the top of servo turntable is fixed with weighing sensor.

[0013] Further, the top of weighing sensor is fixed with mounting assembly, and mounting assembly includes mounting connecting piece and mounting hole, and the inside of mounting connecting piece is provided with mounting hole.

[0014] Compared with the prior art, the device has a clamping and adsorbing double fixing mechanism, which can effectively grasp the workpiece and avoid the workpiece from falling, and is conducive to improving the grasping firmness of the device. At the same time, the device is provided with a rotating and weighing mechanism, which is convenient for adjusting the angle of the clamping mechanism, and can also detect the weight of the workpiece grasped by the device, so as to facilitate the staff to screen unqualified workpieces.

[0015] 1.The utility model discloses a through the setting of clamping jaw, connecting seat, sucking disc, connecting hose, electronic three -way valve, dual -purpose air pump and telescopic link, this device is equipped with control interface, can be connected with industrial computer, and industrial computer can control telescopic link's extension or contraction, when telescopic link extends, telescopic link pushes clamping jaw to the middle and closes, thereby clamps work piece, dual -purpose air pump can pump out air can blow air, and its air outlet and air inlet are connected with the two interfaces of electronic three -way valve respectively, when clamping jaw holds work piece, industrial computer can control dual -purpose air pump and pump out air, at this time, dual -purpose air pump draws out the gas in connecting seat through connecting hose, makes the vacuum in sucking disc, thereby adsorbs work piece, increases the friction of clamping jaw and work piece, simultaneously because sucking disc is silica gel material, and clamping jaw and work piece do not directly contact, therefore, the device holds work piece and is not easy to produce scratch on the surface of work piece, and the sucking disc is annular, and the thickness is bigger, and the deformation space is bigger, thereby can be applicable to the work piece that has certain camber on the surface, through the above -mentioned structure, the device can effectively snatch work piece, avoids work piece to drop, is favorable to improve the snatch firmness of the device.

[0016] 2.The utility model discloses through the setting of servo turntable and weighing sensor, and servo turntable can be connected with industrial computer electrically, and when using, servo turntable can rotate control the angle of the device, thereby making the device can hold work piece with each angle, and weighing sensor makes zero treatment in advance according to the weight of the device, when the device clamps up work piece, weighing sensor can weigh work piece, and the weight information is reacted on industrial computer or other terminal, when weight data is unusual, then show that possibly have work piece unqualified, through the above -mentioned structure, the device is convenient for adjusting the angle of clamping mechanism, also can detect the weight of work piece that the device snatches, thereby convenient for staff screening unqualified work piece. ACCURACY OF DRAWINGS

[0017] Fig. 1 It is a front view structural schematic diagram of a mechanical arm gripper of the utility model;

[0018] Fig. 2 It is a main body, clamping jaw, sucking disc, electronic three -way valve, dual -purpose air pump and telescopic link partial front view enlarged structural schematic diagram of a mechanical arm gripper of the utility model;

[0019] Fig. 3 It is a connecting seat and sucking disc three -dimensional structure schematic diagram of a mechanical arm gripper of the utility model.

[0020] In the drawing: 1, main body; 2, clamping jaw; 3, connecting seat; 4, sucking disc; 5, connecting hose; 6, electronic three -way valve; 7, dual -purpose air pump; 8, telescopic link; 9, servo turntable; 10, weighing sensor; 11, mounting assembly; 1101, mounting connecting piece; 1102, mounting hole. DETAILED DESCRIPTION

[0021] The following detailed description is presented to enable any person skilled in the art to make and use the present application. Descriptions of specific Figs. 1-3 The principles and advantages of the present application will be described in the following detailed description of the application. The examples are provided to illustrate the present application and are not intended to limit the scope of the present application. The present application will be more fully understood with reference to the following detailed description and the accompanying drawings, in which:

[0022] It should be noted that when an element or layer is referred to as being "on" another element or substrate, it can be directly on the other element or substrate, or intervening elements can also be present. In contrast, when an element is referred to as being "directly on" another element or substrate, there are no intervening elements present. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the singular forms "a", "an" and "the" include plural references unless the context clearly dictates otherwise. The term "comprising" means "including, but not limited to" and it is specifically intended that the scope of the application include both commercial and industrial applicability.

[0024] As Figs. 1-3As shown, a mechanical arm gripper, including a main body 1 and a dual-purpose air pump 7, the bottom end of the main body 1 is provided with a clamping jaw 2 on both sides, and the clamping jaw 2 is rotatably connected with the main body 1, the inner side of the clamping jaw 2 is fixedly connected with a connecting seat 3, and the end of the connecting seat 3 away from the clamping jaw 2 is fixedly connected with a suction cup 4, the top end of the connecting seat 3 is sealingly fixedly connected with a connecting hose 5, and the top end of the connecting hose 5 is sealingly connected with an electronic three-way valve 6, the dual-purpose air pump 7 is fixedly connected to the top of the front end of the main body 1, and the dual-purpose air pump 7 is connected with the electronic three-way valve 6 through an air path, and the top end of the clamping jaw 2 is rotatably connected with an extension rod 8, the device is provided with a control interface and can be connected with an industrial computer, the industrial computer can control the extension or contraction of the extension rod 8, when the extension rod 8 is extended, the extension rod 8 pushes the clamping jaw 2 to the middle and closes, thereby clamping the workpiece, the dual-purpose air pump 7 can suck and blow air, and the air outlet and the air suction port thereof are respectively connected with two interfaces of the electronic three-way valve 6, when the clamping jaw 2 holds the workpiece, the industrial computer can control the dual-purpose air pump 7 to suck air, at this time the dual-purpose air pump 7 sucks out the gas in the connecting seat 3 through the connecting hose 5, so that a vacuum is formed in the suction cup 4, thereby adsorbing the workpiece, increasing the friction between the clamping jaw 2 and the workpiece, and at the same time, since the suction cup 4 is made of silica gel material, the clamping jaw 2 does not directly contact the workpiece, so that the device is not easy to produce scratches on the surface of the workpiece when clamping the workpiece, the suction cup 4 is annular and has a large thickness and a large deformation space, so it can be applied to workpieces with a certain arc on the surface, through the above structure, the device can effectively grasp the workpiece, avoid the workpiece from falling, and is beneficial to improve the grasping firmness of the device.

[0025] As shown in Fig. 1 and Fig. 2 the end of the extension rod 8 is rotatably connected with the main body 1, and the extension rod 8 can be driven by air, hydraulic pressure or electricity, the suction cup 4 is annular and made of silica gel material, the top end of the main body 1 is fixedly connected with a servo turntable 9, the top end of the servo turntable 9 is fixedly connected with a weighing sensor 10, the top end of the weighing sensor 10 is fixedly connected with a mounting assembly 11, and the mounting assembly 11 includes a mounting connecting piece 1101 and a mounting hole 1102, the inner side of the mounting connecting piece 1101 is provided with the mounting hole 1102, in use, the servo turntable 9 can rotate to control the angle of the device, so that the device can hold the workpiece at various angles, the weighing sensor 10 makes zero processing in advance according to the weight of the device, when the device clamps the workpiece, the weighing sensor 10 can weigh the workpiece and reflect the weight information on the industrial computer or other terminal, when the weight data is abnormal, it means that there may be unqualified workpieces, through the above structure, the device is convenient for adjusting the angle of the clamping mechanism, and can also detect the weight of the workpiece grasped by the device, thereby facilitating the staff to screen unqualified workpieces.

[0026] In summary: when using the mechanical arm gripper, first, the worker can fix the device on the mechanical arm through the installation assembly 11, and electrically connect the device with the industrial computer or the mechanical arm, when the device is clamped, the dual-purpose air pump 7 and the electronic three-way valve 6 can suck air to form a vacuum in the suction cup 4, and when the device is released, the dual-purpose air pump 7 and the electronic three-way valve 6 can fill a certain amount of gas into the suction cup 4, thereby releasing the adsorption, the device is provided with a control interface, which can be connected with the industrial computer, and the industrial computer can control the extension or contraction of the telescopic rod 8, when the telescopic rod 8 extends, the telescopic rod 8 pushes the clamping jaw 2 to the middle and closes, thereby clamping the workpiece, the dual-purpose air pump 7 can suck air and blow air, and the air outlet and the air suction port thereof are respectively connected with two interfaces of the electronic three-way valve 6, when the clamping jaw 2 holds the workpiece, the industrial computer can control the dual-purpose air pump 7 to suck air, at this time, the dual-purpose air pump 7 sucks out the gas in the connecting seat 3 through the connecting hose 5, so that a vacuum is formed in the suction cup 4, thereby adsorbing the workpiece, increasing the friction force between the clamping jaw 2 and the workpiece, and since the suction cup 4 is made of silica gel material, the clamping jaw 2 does not directly contact the workpiece, so that the device is not easy to produce scratches on the surface of the workpiece, the suction cup 4 is annular and has a large thickness and a large deformation space, so it can be applied to the workpiece with a certain arc, the servo turntable 9 can rotate to control the angle of the device during use, so that the device can hold the workpiece at various angles, the weighing sensor 10 makes zero processing in advance according to the weight of the device, when the device clamps the workpiece, the weighing sensor 10 can weigh the workpiece and react the weight information on the industrial computer or other terminal, when the weight data is abnormal, it means that the workpiece may be unqualified, which is the working principle of the mechanical arm gripper.

[0027] The above is only a preferred embodiment of the present application, and does not limit the present application in any form; any person skilled in the art can implement the present application according to the drawings and the above; however, any equivalent changes, modifications and evolution made by those skilled in the art without departing from the technical scheme of the present application, using the above disclosed technical content, are equivalent embodiments of the present application; at the same time, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present application are still within the protection scope of the technical scheme of the present application.

Claims

1. A mechanical arm gripper comprising a main body (1) and a dual-purpose air pump (7), characterized in that, The bottom end of the body (1) is provided with clamping jaws (2) on both sides, and the clamping jaws (2) are rotatably connected with the body (1), the inner side of the clamping jaw (2) is fixedly connected with a connecting seat (3), one end of the connecting seat (3) away from the clamping jaw (2) is fixedly connected with a suction disc (4), the top end of the connecting seat (3) is sealingly fixedly connected with a connecting hose (5), and the top end of the connecting hose (5) is sealingly connected with an electronic three-way valve (6), a dual-purpose air pump (7) is fixedly connected to the top end of the body (1), and the dual-purpose air pump (7) is connected with the electronic three-way valve (6) through an air path, and the top end of the clamping jaw (2) is rotatably connected with an extension rod (8).

2. The mechanical arm gripper of claim 1, wherein, The end of the extension rod (8) is rotatably connected with the body (1), and the extension rod (8) can be driven by air, hydraulic pressure or electricity.

3. The mechanical arm gripper of claim 1, wherein, The suction disc (4) is annular, and the suction disc (4) is made of silica gel.

4. The mechanical arm gripper of claim 1, wherein, The top end of the body (1) is fixedly connected with a servo turntable (9), and the top end of the servo turntable (9) is fixedly connected with a weighing sensor (10).

5. A mechanical arm gripper according to claim 4, characterized in that The top end of the weighing sensor (10) is fixedly connected with a mounting assembly (11), and the mounting assembly (11) comprises a mounting connecting piece (1101) and a mounting hole (1102), and the inner side of the mounting connecting piece (1101) is provided with a mounting hole (1102).

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