Self-locking type automatic mechanical arm

Abstract

The utility model provides a self-locking automatic mechanical arm, which relates to the technical field of mechanical arms and comprises a base, a mechanical arm body is arranged at the top of the base, a fixing box is mounted at the bottom of the mechanical arm body, and a speed reducing motor is fixedly mounted in the fixing box. In the utility model, the electromagnet is electrified to generate magnetic force in a normal electrified working state, so that the magnetic attraction piece drives the sliding block to overcome the elastic force of the reset spring to slide towards the electromagnet along the fixed rod, and one end of the clamping block is separated from the tooth mark of the gear; and the sliding block slides in the direction away from the electromagnet along the fixing rod, so that one end of the clamping block is clamped in a tooth mark of the gear, rotation of the gear is limited, and the problem that in the using process of an existing mechanical arm, when an emergency such as power failure occurs, a clamped object is loosened or falls off, and consequently the object is damaged is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical arm technical field especially relates to a self locking type automation mechanical arm. BACKGROUND

[0002] Mechanical arm refers to high precision, multi -input multi -output, highly nonlinear, strong coupling complex system, because of its unique operation flexibility, has got the wide application in industrial assembly, safety explosion -proof etc., adopts the industrial robot to replace the manual work, will greatly reduce the enterprise's dependence on manual work, and it greatly improves production and processing efficiency, promotes enterprise benefit benign development.

[0003] Such as China application number CN202420016876.4 one kind is automated industrial mechanical arm, it is recorded in the specification " the utility model discloses an automated industrial mechanical arm, including base, base top rotary joint has device body, device body top hinged connection has connecting arm, connecting arm free end hinged connection has support arm, support arm free end is connected through air cylinder and has telescopic arm, telescopic arm free end hinged connection has connecting block, connecting block bottom is connected through air cylinder and has clamping mechanism, clamping mechanism includes mechanism main body, mechanism main body is provided with rotary motor, rotary motor is connected through the shaft and has gear, gear upper and lower sides are provided with a pair of moving plate, moving plate surface is provided with and the gear meshing toothed plate, a pair of moving plate free end are all fixedly connected with fixed plate, fixed plate free end is fixedly connected with clamping plate, a pair of clamping plates are symmetrically arranged, and clamping plate front end longitudinal evenly is provided with a plurality of clamping blocks, and clamping block rear end is fixedly connected with hinged seat, to solve the problem that the clamping surface of the existing mechanical arm is not flat object and uses greater force to cause the damage of the article"。

[0004] The existing mechanical arm in the use process, through the start rotary motor, drives clamping plate to move to the middle, in and object contact to completely clamping object process, each clamping block will automatically adhere according to object surface shape, has the advantage of preventing object loosening in the process of clamping, but through rotary motor as driving source, when encountering sudden situation such as power failure, will lead to the loosening or falling of the object being clamped, thereby causing the damage of the article. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problem that rotary motor as driving source in prior art, when encountering sudden situation such as power failure, will lead to the loosening or falling of the object being clamped, thereby causing the damage of the article, and proposes a self locking type automation mechanical arm.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: A self-locking type automatic mechanical arm, including the base, the top of base is provided with mechanical arm body, the bottom of mechanical arm body is installed with fixed box, the fixed box is fixedly installed with speed reducer motor in, the output of speed reducer motor is fixedly connected with the pivot, the one end of pivot is rotatably connected with fixed box, the outer surface of pivot is fixedly sleeved with gear, the fixed box is provided with the clamping mechanism, one side of clamping mechanism is provided with mounting mechanism, one side of mounting mechanism is provided with the clamping plate, the inner side of fixed box is provided with self-locking mechanism, the self-locking mechanism includes the electromagnet, the electromagnet is installed on the inner side of fixed box, the inner side of fixed box is fixedly connected with the fixed link, the outer surface of fixed link is sleeved with the return spring, the outer surface of fixed link is sleeved with the sliding block, one side of sliding block is fixedly connected with the magnetic attraction piece, one side of magnetic attraction piece is fixedly connected with the connecting rod, one side of connecting rod is fixedly connected with the clamping block.

[0007] Preferably, the clamping mechanism includes two limit grooves, two limit grooves are opened on the inner top and inner bottom of the fixed box, and two limit blocks are slidably connected in the two limit grooves.

[0008] Preferably, one side of the two limit blocks is fixedly connected with two racks, and the two racks are meshingly connected with the gear.

[0009] Preferably, one side of the two racks is fixedly connected with two moving frames, and the two moving frames are movably penetrated into the fixed box.

[0010] Preferably, the mounting mechanism includes a mounting block, a slot is formed in one side of the mounting block, and an insertion block is movably inserted into the slot.

[0011] Preferably, the insertion block is fixedly connected to one side of the clamping plate, a clamping hole is formed in one side of the insertion block, and an empty slot is formed in the mounting block.

[0012] Preferably, a bidirectional threaded rod is rotatably connected in the empty slot, and a limiting rod is fixedly connected in the empty slot.

[0013] Preferably, a moving plate is movably sleeved on the outer surfaces of the bidirectional threaded rod and the limiting rod, and a clamping rod is fixedly connected to one side of the moving plate.

[0014] Preferably, one end of the clamping rod movably penetrates into the empty slot and the slot and extends into the clamping hole, and a smooth end of the bidirectional threaded rod movably penetrates into the empty slot and the mounting block and is fixedly installed with a rotating cap.

[0015] Preferably, one end of the clamping block is clamped in the tooth trace of the gear, and one end of the fixed rod is fixedly connected with a limiting sheet.

[0016] Compared with the prior art, the self-locking type automatic mechanical arm has the advantages and positive effects that

[0017] 1、The utility model discloses a self-locking mechanism is set up, under normal power -on working condition, electromagnet power generation magnetic force makes magnetic suction piece drive slider overcome the elastic force of reset spring and slide along the fixed rod to electromagnet direction, make the one end of the clamping block separate the tooth mark of gear, when meeting the power -off situation suddenly, electromagnet loses the magnetic force, under the elastic force of reset spring, the slider slides along the fixed rod to the direction of far from electromagnet, make the one end of the clamping block be stuck in the tooth mark of gear, thereby limit gear rotation, prevent the object that is being clamped from loosening or falling off due to the deceleration motor stop rotation in further turn, the mechanical arm of prior art is in the use process, when meeting the power -off situation suddenly, will lead to the object that is being clamped from loosening or falling off, thereby cause the problem of article damage.

[0018] 2、The utility model discloses a mounting mechanism is seted up, rotates the rotary cap and drives the two -way screw rod rotation, make the two -way screw rod drive two moving plates and keep away from each other, thereby make two moving plates drive two clamping rods and keep away from each other and with two card hole separate, and then through the clamping plate of pulling out the plug -in block from the slot, convenient for the replacement of clamping plate, improve practicality. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A main body structure perspective view of the self-locking type automatic mechanical arm is provided for the utility model;

[0020] Figure 2 A sectional structure perspective view of the fixed box in the self-locking type automatic mechanical arm is provided for the utility model;

[0021] Figure 3 A sectional structure perspective view of the mounting block in the self-locking type automatic mechanical arm is provided for the utility model;

[0022] Figure 4 A structure perspective view of the plug-in block in the self-locking type automatic mechanical arm is provided for the utility model;

[0023] Figure 5 A structure perspective view of the self-locking mechanism in the self-locking type automatic mechanical arm is provided for the utility model.

[0024] Legend: 1. Base; 2. Robotic arm body; 3. Gear motor; 4. Rotating shaft; 5. Gear; 6. Gripping mechanism; 601. Limiting groove; 602. Limiting block; 603. Rack; 604. Moving frame; 7. Mounting mechanism; 701. Mounting block; 702. Slot; 703. Insert block; 704. Locking hole; 705. Empty slot; 706. Bidirectional threaded rod; 707. Limiting rod; 708. Moving plate; 709. Locking rod; 710. Rotating cap; 8. Clamping plate; 9. Self-locking mechanism; 901. Electromagnet; 902. Fixing rod; 903. Return spring; 904. Slider; 905. Magnetic component; 906. Connecting rod; 907. Locking block; 908. Limiting piece; 10. Fixing box. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1: As Figure 1 - Figure 5 As shown, this utility model provides a self-locking automated robotic arm, including a base 1, a robotic arm body 2 mounted on the top of the base 1, a fixed box 10 mounted on the bottom of the robotic arm body 2, a reduction motor 3 fixedly mounted inside the fixed box 10, a rotating shaft 4 fixedly connected to the output end of the reduction motor 3, one end of the rotating shaft 4 being rotatably connected to the fixed box 10, a gear 5 fixedly sleeved on the outer surface of the rotating shaft 4, a clamping mechanism 6 provided inside the fixed box 10, an installation mechanism 7 provided on one side of the clamping mechanism 6, and a... The clamping plate 8 and the inner side of the fixing box 10 are provided with a self-locking mechanism 9. The self-locking mechanism 9 includes an electromagnet 901, which is installed inside the fixing box 10. A fixing rod 902 is fixedly connected to the inner side of the fixing box 10. A return spring 903 is sleeved on the outer surface of the fixing rod 902. A slider 904 is sleeved on the outer surface of the fixing rod 902. A magnetic suction component 905 is fixedly connected to one side of the slider 904. A connecting rod 906 is fixedly connected to one side of the magnetic suction component 905. A locking block 907 is fixedly connected to one side of the connecting rod 906.

[0028] The effect achieved by the whole embodiment 1 is that, by energizing the electromagnet 901 to generate magnetic force in the normal energized working state, the magnetic attraction piece 905 is attracted, so that the magnetic attraction piece 905 drives the sliding block 904 to slide along the fixed rod 902 to the electromagnet 901 direction against the elastic force of the reset spring 903, at this time, the connecting rod 906 and the clamping block 907 also move, one end of the clamping block 907 is separated from the tooth trace of the gear 5, and the gear 5 can be freely rotated by starting the speed reducer motor 3 to drive the gear 5, so that the mechanical arm body 2 can normally clamp the object, when a sudden power failure occurs, the electromagnet 901 loses magnetic force, and the sliding block 904 slides away from the electromagnet 901 along the fixed rod 902 under the action of the elastic force of the reset spring 903, the clamping block 907 is driven to move through the connecting rod 906, so that one end of the clamping block 907 is clamped in the tooth trace of the gear 5, thereby limiting the rotation of the gear 5, and preventing the object being clamped from loosening or falling due to the stop of the speed reducer motor 3, thereby solving the problem that the existing mechanical arm will cause the object being clamped to loosen or fall when a sudden situation such as power failure occurs during use, thereby causing damage to the object.

[0029] Embodiment 2: as shown in Figure 1 Figure 5 The clamping mechanism 6 includes two limiting grooves 601, the two limiting grooves 601 are opened on the inner top and inner bottom of the fixed box 10, two limiting blocks 602 are slidably connected in the two limiting grooves 601, two racks 603 are fixedly connected on one side of the two limiting blocks 602, the two racks 603 are meshingly connected with the gear 5, two moving frames 604 are fixedly connected on one side of the two racks 603, the two moving frames 604 are movably penetrated in the fixed box 10, the mounting mechanism 7 includes a mounting block 701, a slot 702 is opened on one side of the mounting block 701, an insertion block 703 is movably inserted in the slot 702, the insertion block 703 is fixedly connected on one side of the clamping plate 8, a clamping hole 704 is opened on one side of the insertion block 703, an empty slot 705 is opened in the inside of the mounting block 701, a bidirectional threaded rod 706 is rotatably connected in the empty slot 705, a limiting rod 707 is fixedly connected in the empty slot 705, a moving plate 708 is movably sleeved on the outer surfaces of the bidirectional threaded rod 706 and the limiting rod 707, a clamping rod 709 is fixedly connected on one side of the moving plate 708, one end of the clamping rod 709 is movably penetrated in the empty slot 705 and the slot 702 and extends into the clamping hole 704, a smooth end of the bidirectional threaded rod 706 is movably penetrated in the empty slot 705 and the mounting block 701 and fixedly mounted with a rotating cap 710, one end of the clamping block 907 is clamped in the tooth trace of the gear 5, and one end of the fixed rod 902 is fixedly connected with a limiting sheet 908.

[0030] ​The effect achieved by the whole embodiment 2 is that when the speed reducer motor 3 starts, the output end drives the rotating shaft 4 to rotate, the gear 5 rotates with the rotating shaft 4, the two racks 603 move along the limit grooves 601 on the top and bottom of the inner side of the fixed box 10, the two moving frames 604 drive the two clamping plates 8 to move, the object is clamped, the installation mechanism 7 is arranged, the rotating cap 710 drives the two-way threaded rod 706 to rotate, the two moving plates 708 are driven to move away from each other due to the limiting effect of the limiting rod 707 on the moving plate 708, the two clamping rods 709 are driven to move away from each other and separate from the two clamping holes 704, the limiting of the plug block 703 is released, the plug block 703 is pulled out from the plug groove 702, the clamping plate 8 is replaced, the practicality is improved, and the limiting effect of the limiting piece 908 on the sliding block 904 is achieved.

[0031] Working principle: in use, under the normal power-on working state, the electromagnet 901 generates magnetic force after being powered on, the magnetic attraction piece 905 is attracted, the sliding block 904 slides along the fixed rod 902 to the electromagnet 901 under the magnetic force of the electromagnet 901 and the magnetic attraction piece 905, the connecting rod 906 and the clamping block 907 also move, one end of the clamping block 907 is separated from the tooth trace of the gear 5, then the mechanical arm body 2 is started to make the two clamping plates 8 on both sides of the object to be clamped, the speed reducer motor 3 is started, the output end drives the rotating shaft 4 to rotate, the gear 5 rotates with the rotating shaft 4, the two racks 603 move along the limit grooves 601 on the top and bottom of the inner side of the fixed box 10, the two moving frames 604 drive the two clamping plates 8 to move, and the object is clamped, and then the mechanical arm body 2 is moved to the position to be placed, when a sudden power failure occurs, the electromagnet 901 loses magnetic force, the sliding block 904 slides away from the electromagnet 901 under the elastic force of the reset spring 903, the clamping block 907 is moved through the connecting rod 906, one end of the clamping block 907 is clamped in the tooth trace of the gear 5, the rotation of the gear 5 is limited, the object being clamped is prevented from loosening or falling due to the stop of the speed reducer motor 3, when the clamping plate 8 needs to be replaced, the rotating cap 710 drives the two-way threaded rod 706 to rotate, the two moving plates 708 are driven to move away from each other due to the limiting effect of the limiting rod 707 on the moving plate 708, the two clamping rods 709 are driven to move away from each other and separate from the two clamping holes 704, the limiting of the plug block 703 is released, the plug block 703 is pulled out from the plug groove 702, and the operation is convenient.

[0032] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. A self-locking automated mechanical arm comprising a base (1), characterized in that: The top of the base (1) is provided with a mechanical arm body (2), the bottom of the mechanical arm body (2) is provided with a fixed box (10), the fixed box (10) is fixedly provided with a reduction motor (3) inside, the output end of the reduction motor (3) is fixedly connected with a rotating shaft (4), one end of the rotating shaft (4) is rotatably connected with the fixed box (10), the outer surface of the rotating shaft (4) is fixedly sleeved with a gear (5), the fixed box (10) is provided with a clamping mechanism (6) inside, one side of the clamping mechanism (6) is provided with a mounting mechanism (7), one side of the mounting mechanism (7) is provided with a clamping plate (8), the inner side of the fixed box (10) is provided with a self-locking mechanism (9), the self-locking mechanism (9) comprises an electromagnet (901), the electromagnet (901) is mounted on the inner side of the fixed box (10), the inner side of the fixed box (10) is fixedly connected with a fixed rod (902), the outer surface of the fixed rod (902) is sleeved with a return spring (903), the outer surface of the fixed rod (902) is sleeved with a sliding block (904), one side of the sliding block (904) is fixedly connected with a magnetic attraction piece (905), one side of the magnetic attraction piece (905) is fixedly connected with a connecting rod (906), one side of the connecting rod (906) is fixedly connected with a clamping block (907).

2. The self-locking automated mechanical arm according to claim 1, wherein: The clamping mechanism (6) comprises two limiting grooves (601), and the two limiting grooves (601) are formed in the inner top and inner bottom of the fixed box (10).

3. The self-locking automated mechanical arm according to claim 2, wherein: One side of the two limiting blocks (602) is fixedly connected with two racks (603), and the two racks (603) are meshedly connected with the gear (5).

4. The self-locking automated mechanical arm according to claim 3, wherein: One side of the two racks (603) is fixedly connected with two moving frames (604), and the two moving frames (604) are movably penetrated into the fixed box (10).

5. The self-locking automated mechanical arm according to claim 1, wherein: The mounting mechanism (7) comprises a mounting block (701), and the mounting block (701) is provided with a slot (702) on one side.

6. The self-locking automated mechanical arm according to claim 5, wherein: The plug block (703) is fixedly connected to one side of the clamping plate (8), a clamping hole (704) is formed in one side of the plug block (703), and an air slot (705) is formed in the mounting block (701).

7. The self-locking automated mechanical arm according to claim 6, wherein: The air slot (705) is rotatably connected with a bidirectional threaded rod (706), and the air slot (705) is fixedly connected with a limiting rod (707).

8. The self-locking automated mechanical arm according to claim 7, wherein: The outer surfaces of the bidirectional threaded rod (706) and the limiting rod (707) are movably sleeved with a moving plate (708), and one side of the moving plate (708) is fixedly connected with a clamping rod (709).

9. The self-locking automated mechanical arm according to claim 8, wherein: One end of the clamping rod (709) movably penetrates into the air slot (705) and the slot (702) and extends into the clamping hole (704), and the smooth end of the bidirectional threaded rod (706) movably penetrates into the air slot (705) and the mounting block (701) and is fixedly connected with a rotating cap (710).

10. The self-locking automated mechanical arm according to claim 1, wherein: One end of the card block (907) is clamped in the tooth trace of the gear (5), and one end of the fixed rod (902) is fixedly connected with the limiting sheet (908).

Images