CN211162581U

CN211162581U - Robot arm

Info

Publication number: CN211162581U
Application number: CN201922317421.8U
Authority: CN
Inventors: 郭伯牙; 陈航
Original assignee: Shenzhen Xinsheng Robot Co ltd
Current assignee: Shenzhen Xinsheng Robot Co ltd
Priority date: 2019-12-22
Filing date: 2019-12-22
Publication date: 2020-08-04
Anticipated expiration: 2029-12-22

Abstract

The utility model belongs to the technical field of robots, and discloses a robot arm, which comprises a connecting seat, a first hinge joint, a second hinge joint and a third hinge joint, wherein the top end of the connecting seat is connected with a first mechanical arm, one end of the first mechanical arm, which is far away from the connecting seat, is connected with a second mechanical arm through the first hinge joint, one end of the second mechanical arm, which is far away from the first hinge joint, is connected with a third mechanical arm through the second hinge joint, one end of the third mechanical arm, which is far away from the second hinge joint, is connected with a second mounting plate through the third hinge joint, a first fixing plate is fixed on the outer wall of the second mounting plate, the utility model can insert the insert into the insert groove through the matching of the first fixing plate, the insert groove, the insert strip and the second fixing plate when a welding gun is mounted, the insert strip can be inserted into the insert groove for limiting and fixing, and the stability and the mounting efficiency, the installation position of the welding gun is prevented from being inclined, and the subsequent welding operation is facilitated.

Description

Robot arm

Technical Field

The utility model belongs to the technical field of the robot, concretely relates to robot arm.

Background

With the development of society, the progress of science and technology and the gradual improvement of degree of automation, the robot has obtained wide application in the engineering machine tool field, and welding robot belongs to precision equipment, and every junction of fuselage all has important influence to its welding precision, wherein accomplishes the important part of welding operation when the robot arm, through the operation of robot arm with control welder.

But the robot arm in the existing market has certain defect when using, and the welder installation on traditional robot arm is stable firm inadequately, and the mounted position is crooked easily, is unfavorable for follow-up welding operation, and in addition, traditional robot arm does not set up card line structure, and the connecting wire cable is around easily becoming flexible in the arm outside, and causes the circuit to be mixed and disorderly, is unfavorable for overhauing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a robot arm to it is not stable firm enough to solve the welder installation on proposing traditional robot arm among the above-mentioned background art, and the easy crooked problem of mounted position does not set up the card line structure in addition, and the connection cable is around the easy not hard up problem in the arm outside.

In order to achieve the above object, the utility model provides a following technical scheme: a robot arm comprises a connecting seat, a first hinge joint, a second hinge joint and a third hinge joint, wherein the top end of the connecting seat is connected with a first mechanical arm, one end, far away from the connecting seat, of the first mechanical arm is connected with a second mechanical arm through the first hinge joint, one end, far away from the first hinge joint, of the second mechanical arm is connected with a third mechanical arm through the second hinge joint, one end, far away from the second hinge joint, of the third mechanical arm is connected with a second mounting plate through the third hinge joint, a first fixing plate is fixed on the outer surface wall of the second mounting plate, slots are symmetrically formed in the outer surface wall of the first fixing plate, inserting strips matched with the slots are inserted into the slots, a second fixing plate is fixed on the outer end of each inserting strip, screw holes are formed in the outer surface walls of the second fixing plate and the first fixing plate, and fastening bolts are rotatably connected in the screw holes, and a welding gun is arranged at the bottom end of the second fixing plate.

Preferably, the outer walls of the first mechanical arm, the second mechanical arm and the third mechanical arm are all fixed with wire clamping blocks, and wire clamping grooves are formed in the outer walls of the wire clamping blocks.

Preferably, a rubber pad is bonded on the inner wall of the wire clamping groove, and the outer surface wall of the rubber pad is smooth and has no protrusion.

Preferably, the bottom end of the connecting seat is connected with a first mounting plate, and mounting holes are symmetrically formed in four corner positions of the outer surface wall of the first mounting plate.

Preferably, the slot is of a T-shaped structure, the number of the screw holes is six, the three screw holes are divided into two groups, and the two groups of screw holes are symmetrically distributed at two ends of the first fixing plate.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a cooperation of first fixed plate, slot, cutting and second fixed plate, when installing welder, can insert earlier the cutting and establish into the slot, carry out preliminary spacing fixed, stability and installation effectiveness when can effectively improving follow-up bolt-up have avoided welder mounted position to take place crooked, are favorable to subsequent welding operation.

(2) The utility model discloses a cooperation of card line piece and card wire casing can be established into the card wire casing that card line piece exterior wall was seted up with the outside connecting cable card of arm, can stably fix the connecting cable, avoids the cable not hard up, has effectively improved the orderliness of solidus, has avoided the mixed and disorderly defect of circuit, is favorable to the maintenance of follow-up circuit.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the first fixing plate of the present invention;

fig. 3 is a side view of the first fixing plate of the present invention;

fig. 4 is a side view of the wire clamping block of the present invention;

in the figure: 1-a first mounting plate, 2-a connecting seat, 3-a first mechanical arm, 4-a first hinged joint, 5-a second mechanical arm, 6-a line clamping block, 7-a second hinged joint, 8-a third mechanical arm, 9-a third hinged joint, 10-a second mounting plate, 11-a first fixing plate, 12-a second fixing plate, 13-a cutting, 14-a fastening bolt, 15-a welding gun, 16-a slot, 17-a screw hole, 18-a line clamping slot and 19-a rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a robot arm comprises a connecting seat 2, a first hinged joint 4, a second hinged joint 7 and a third hinged joint 9, wherein the top end of the connecting seat 2 is connected with a first mechanical arm 3, one end, far away from the connecting seat 2, of the first mechanical arm 3 is connected with a second mechanical arm 5 through the first hinged joint 4, one end, far away from the first hinged joint 4, of the second mechanical arm 5 is connected with a third mechanical arm 8 through the second hinged joint 7, one end, far away from the second hinged joint 7, of the third mechanical arm 8 is connected with a second mounting plate 10 through the third hinged joint 9, a first fixing plate 11 is fixed on the outer wall of the second mounting plate 10, slots 16 are symmetrically formed in the outer wall of the first fixing plate 11, insertion strips 13 matched with the insertion strips are inserted into the slots 16, a second fixing plate 12 is fixed at the outer ends of the insertion strips 13, when a welding gun 15 is installed, the insertion strips 13 can be inserted into the slots 16 to be limited and fixed preliminarily, stability and installation effectiveness when can effectively improve follow-up bolt-up of utilizing have avoided welder 15 mounted position to take place crooked, are favorable to subsequent welding operation, and screw 17 has all been seted up to the exterior wall of second fixed plate 12 and first fixed plate 11, and the inside of screw 17 closes soon to be connected with fastening bolt 14, and welder 15 is installed to the bottom of second fixed plate 12.

Further, the exterior wall of the first mechanical arm 3, the second mechanical arm 5 and the third mechanical arm 8 is fixed with the wire clamping block 6, the wire clamping groove 18 is formed in the exterior wall of the wire clamping block 6, the connecting cable can be clamped into the wire clamping groove 18 formed in the exterior wall of the wire clamping block 6, the connecting cable can be stably fixed, the cable is prevented from loosening, the orderliness of the fixing cable is effectively improved, the defect of disorder of the circuit is avoided, and the maintenance of the follow-up circuit is facilitated.

Furthermore, a rubber pad 19 is bonded on the inner wall of the wire clamping groove 18, the outer surface wall of the rubber pad 19 is smooth and has no protrusion, and the bonding of the rubber pad 19 can effectively protect the cable and reduce the abrasion of the outer wall of the cable.

Further, the bottom of connecting seat 2 is connected with first mounting panel 1, and the mounting hole has been seted up to four turning position departments of the exterior wall symmetry of first mounting panel 1, can fix the stable installation of this robot arm through the first mounting panel 1 of seting up the mounting hole, avoids becoming flexible.

Further, the slot 16 is a T-shaped structure, the screw holes 17 are provided with six screws, the three screws are divided into two groups, the two groups of screw holes 17 are symmetrically distributed at two ends of the first fixing plate 11, the slot 16 of the T-shaped structure can effectively prevent the insert 13 from sliding out of the side wall, and safety is improved.

The utility model discloses a theory of operation and use flow: when the utility model is used, the first mounting plate 1 with mounting holes is firstly used for stably mounting and fixing the robot arm, then the robot arm can be put into use, a workpiece can be welded through the welding gun 15 at the bottom end of the second fixing plate 12, wherein the first mechanical arm 3, the second mechanical arm 5 and the third mechanical arm 8 which are connected in a hinged way can freely adjust the angle, thereby facilitating the welding of the welding gun 15, in addition, when the welding gun 15 is mounted, the inserting strip 13 fixed on the second fixing plate 12 can be firstly inserted into the inserting groove 16 arranged on the outer wall of the first fixing plate 11 for preliminary limiting and fixing, the stability and the mounting efficiency when the fastening bolt 14 is subsequently used for fastening can be effectively improved, the mounting position of the welding gun 15 is prevented from being inclined, in addition, the connecting cable can be stably fixed through the wire clamping block 6 with the wire clamping groove 18, the cable looseness is avoided, the orderliness of the fixed wire is effectively improved, the defect of messy lines is avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A robot arm, its characterized in that: the mechanical arm comprises a connecting seat (2), a first hinge joint (4), a second hinge joint (7) and a third hinge joint (9), wherein the top end of the connecting seat (2) is connected with a first mechanical arm (3), one end, far away from the connecting seat (2), of the first mechanical arm (3) is connected with a second mechanical arm (5) through the first hinge joint (4), one end, far away from the first hinge joint (4), of the second mechanical arm (5) is connected with a third mechanical arm (8) through the second hinge joint (7), one end, far away from the second hinge joint (7), of the third mechanical arm (8) is connected with a second mounting plate (10) through the third hinge joint (9), a first fixing plate (11) is fixed on the outer wall of the second mounting plate (10), slots (16) are symmetrically formed in the outer wall of the first fixing plate (11), and inserting strips (13) matched with the slots (16) are inserted in the slots (16), the outer end of cutting (13) is fixed with second fixed plate (12), screw (17) have all been seted up to the exterior wall of second fixed plate (12) and first fixed plate (11), the inside of screw (17) is closed soon and is connected with fastening bolt (14), welder (15) are installed to the bottom of second fixed plate (12).

2. A robot arm as claimed in claim 1, wherein: the outer walls of the first mechanical arm (3), the second mechanical arm (5) and the third mechanical arm (8) are all fixed with wire clamping blocks (6), and wire clamping grooves (18) are formed in the outer walls of the wire clamping blocks (6).

3. A robot arm as claimed in claim 2, characterized in that: the inner wall of the wire clamping groove (18) is bonded with a rubber pad (19), and the outer surface wall of the rubber pad (19) is smooth and has no protrusion.

4. A robot arm as claimed in claim 1, wherein: the bottom of connecting seat (2) is connected with first mounting panel (1), the mounting hole has been seted up to four corner positions of the exterior wall symmetry of first mounting panel (1).

5. A robot arm as claimed in claim 1, wherein: the slot (16) is of a T-shaped structure, the screw holes (17) are provided with six screws, the three screws are divided into two groups, and the two groups of screw holes (17) are symmetrically distributed at two ends of the first fixing plate (11).