CN210703065U

CN210703065U - Robot welding tongs

Info

Publication number: CN210703065U
Application number: CN201921233576.7U
Authority: CN
Inventors: 李琪
Original assignee: HEFEI GUOSHENG ELECTRIC COMMUNICATION Ltd
Current assignee: HEFEI GUOSHENG ELECTRIC COMMUNICATION Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-06-09
Anticipated expiration: 2029-07-31

Abstract

The utility model relates to a robot soldering turret, including base, actuating mechanism, soldered connection and the arm of force, the top of base is provided with actuating mechanism, actuating mechanism's right side links to each other with first soldered connection, the one end of the arm of force is provided with the second soldered connection, the other end of the arm of force and the right flank fixed connection of base. The utility model discloses the soldered connection passes through first transformer, second transformer and secondary soft copper strips and links to each other with first soldered connection, second soldered connection, and first transformer, second transformer can increase output current, and first soldered connection, second soldered connection adopt pure copper material preparation simultaneously, have improved welding pressure and have born the scope, and welding pressure can reach 8KN at most, can be applicable to aluminium materials such as welding steel material or second aluminium material.

Description

Robot welding tongs

Technical Field

The utility model relates to a resistance welding tongs equipment field, more specifically relate to a robot welding tongs.

Background

With the continuous development and progress of society, resistance welding has been widely used in production activities, and is a welding method that uses resistance heat generated by passing current through a contact portion between a welding head and an object to be welded as a heat source to locally heat and pressurize a part. The welding method does not need to be filled with metal, has high production efficiency and small deformation of the weldment, and is easy to realize automation.

With the continuous development and progress of the society, the robot welding tongs gradually replace manually operated welding tongs, the difference between the welding process characteristics and steel welding is great in the process of welding aluminum alloy and aluminum materials, and the self-adaptive function of aluminum material welding is realized by monitoring the pressure in welding in the process of welding aluminum alloy and aluminum materials, so that the welding quality is ensured. The existing robot welding tongs are not suitable for the self-adaptive welding function of steel materials or aluminum materials at the same time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a robot soldering turret is provided to solve among the above-mentioned background art and current robot soldering turret is applicable to the problem of the self-adaptation welding function of steel material or aluminium material not simultaneously.

In order to solve the above problem, the utility model provides a following technical scheme:

a robot welding tongs comprises a base, a driving mechanism, a first welding head, a second welding head and a force arm, wherein the driving mechanism is arranged above the base, an output shaft of the driving mechanism is connected with the first welding head, one end of the force arm is connected with the second welding head, the other end of the force arm is fixedly connected with the right side face of the base, the first welding head and the second welding head are arranged oppositely, a pressure signal amplifier is arranged on the surface of the base and electrically connected with a spot welding controller, and a pressure sensor matched with the pressure signal amplifier is arranged on the transverse part of the force arm; the first welding head and the second welding head are made of pure copper.

The transformer can increase output current, and first soldered connection, second soldered connection adopt pure copper material preparation simultaneously, have improved welding pressure and have born the scope, and welding pressure can reach 8KN at utmost, can be applicable to welding steel material or aluminium material etc. can improve welding precision simultaneously.

As a further aspect of the present invention: the surface of the base is provided with a plurality of bolts which play a role in fixing.

As a further aspect of the present invention: the transformer device comprises a first transformer and a second transformer which are respectively and symmetrically arranged in the middle of the right side of the base in an up-down mode, the first transformer and the second transformer are connected in parallel, and copper belts of the first transformer and the second transformer are connected with a first welding head and a second welding head.

The first transformer and the second transformer are both intermediate frequency transformers, the intermediate frequency welding transformer is small in size and light in weight, can be installed on a welding tongs, reduces the weight of the whole welding tongs, reduces the power consumption of the robot on the robot, and increases current output due to the fact that the first transformer and the second transformer are connected in parallel.

As a further aspect of the present invention: the electric welding machine is characterized in that a driving mechanism is further arranged above the top of the base and comprises a servo motor, a linear electric cylinder and a sliding rail, the servo motor is arranged above the linear electric cylinder, the sliding rail which is matched with the linear electric cylinder in a sliding connection mode is arranged below the linear electric cylinder, the bottom of the sliding rail is fixedly connected with the top of the base, and a first welding head is arranged at an output shaft of the driving mechanism.

The linear electric cylinder is controlled to move through the servo motor, the relative position of the first welding head and the second welding head is controlled, the moving distance is adjusted conveniently, and the precision is high.

As a further aspect of the present invention: the maximum installation distance between the first welding head and the second welding head is 260mm, the first welding head is detachably connected with the output shaft of the linear electric cylinder, and the second welding head is detachably connected with the upper end of the longitudinal part of the force arm.

The first welding head and the second welding head are made of pure copper, so that the electric conductivity is good, the high temperature resistance is realized, the welding efficiency is improved, and the service life of the device is prolonged.

As a further scheme of the invention: the copper strips comprise first secondary soft copper strips and second secondary soft copper strips, the first secondary soft copper strips are arranged at the lower end of the driving mechanism, the first transformer and the second transformer are connected with the first welding head through the first secondary soft copper strips, the second secondary soft copper strips are arranged on one side face, close to the force arm, of the base, the first transformer and the second secondary soft copper strips are connected, and the second secondary soft copper strips are connected with one end of the force arm.

As a further aspect of the present invention: a water joint assembly is arranged above the pressure changing device and on the left side of the top of the base, is used for being connected with an external water source and plays a role in supplying water, and comprises a first water through port, a second water through port, a third water through port, a fourth water through port and a water joint body;

the water joint comprises a water joint body and is characterized in that the interior of the water joint body is of a cavity structure, a plurality of first water through holes are formed in one side face of the water joint body, each first water through hole comprises a water inlet and a water outlet, and the first water through holes are connected with water pipes to realize water inlet and outlet of the water joint body;

the number of the first water passing ports is preferably four, and the first water passing ports are divided into a group of water inlets and a group of water outlets.

The water joint comprises a water joint body, wherein a first water through hole is formed in the water joint body, a second water through hole is formed in the surface, opposite to the first water through hole, of the water joint body, the number of the second water through holes is four, the number of the second water through holes is two, each group of the second water through holes comprises a water inlet and a water outlet, meanwhile, the second water through holes are all connected with water pipes, one group of the second water through holes is connected with a first welding head through the water.

The top of the water joint body is also provided with two third water inlets which are respectively a water inlet and a water outlet, and the third water inlets are connected with the first transformer through water pipes;

and fourth water inlets are respectively arranged on the front side and the rear side of the water joint body, one of the fourth water inlets is a water inlet, the other one of the fourth water inlets is a water outlet, and the fourth water inlets are connected with a second transformer through water pipes.

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

1. the utility model discloses the soldered connection passes through first transformer, second transformer and passes through secondary soft copper strips and links to each other with first soldered connection, second soldered connection, and first transformer, second transformer can increase output current, and first soldered connection, second soldered connection adopt pure copper material to make simultaneously, have improved welding pressure and have born the scope, and welding pressure can reach 8KN at most, can be applicable to aluminium materials such as welding steel material or welding steel material;

the change of work piece pressure and with signal transmission to pressure signal amplifier department in measuring the welding through pressure sensor, send to welding controller department by pressure signal amplifier again, welding controller realizes controlling servo motor work through driver control driver, and then control first soldered connection, relative distance between the second soldered connection realizes automatically regulated, can weld the work piece of the different thickness of the same material through automatically regulated simultaneously, and need not carry out welding parameter's regulation to the work piece of every thickness, the welding precision is high, can realize the self-adaptation welding function who is applicable to steel material and aluminium material simultaneously.

2. The utility model discloses a servo motor controls the straight line electric cylinder and removes, improves welding precision, and servo motor control pressure has the response fast, characteristics such as precision height, and welding precision can be high, promotes welding quality; and (5) during welding.

3. The utility model discloses well first soldered connection, second soldered connection material adopt pure copper to make, and electric conductive property is good and can be high temperature resistant, can improve the welding precision, and first transformer is the intermediate frequency transformer with the second transformer, and the intermediate frequency welding transformer is small, and light in weight can install on the soldering turret, has reduced the weight of whole soldering turret, should be on the robot, has reduced the consumption of robot, and first transformer and the parallelly connected current output that has increased of second transformer.

4. The utility model discloses in through being provided with the water swivel, the cooperation water pipe links to each other with welder water swivel, transformer, reduces the electrode temperature of first soldered connection and second soldered connection through hydrologic cycle, also can reduce the transformer temperature simultaneously.

Drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.

Fig. 1 is a schematic perspective view of the welding tongs of the robot provided by the present invention.

Fig. 2 is a left side view of the robot welding tongs provided by the utility model.

FIG. 3 is a schematic view of the connection of the water connector assembly to the water pipe.

In the figure: 1-base, 2-bolt, 3-transformer, 301-first transformer, 302-second transformer, 4-water joint, 401-first water through port, 402-second water through port, 403-third water through port, 404-fourth water through port, 405-water joint body, 5-pressure signal amplifier, 6-driving mechanism, 601-servo motor, 602-linear electric cylinder, 603-slide rail, 701-first welding head, 702-second welding head, 8-force arm, 9-water pipe, 9-copper strip, 901-first secondary soft copper strip, 902-second secondary soft copper strip and 10-pressure sensor.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 1 is a schematic perspective view of a robot welding tongs provided by the present invention, please refer to fig. 1, in the embodiment of the present invention, a robot soldering turret comprises a base 1, a driving mechanism 6, a first soldering head 701, a second soldering head 702 and a force arm 8, a driving mechanism 6 is arranged above the base 1, an output shaft of the driving mechanism 6 is connected with a first welding head 701, one end of the force arm 8 is connected with the second welding head 702, the other end of the force arm 8 is fixedly connected with the right side surface of the base 1, the first welding head 701 and the second welding head 702 are oppositely arranged, the surface of the base is provided with a pressure signal amplifier 5, the pressure signal amplifier 5 is connected to a welding controller (not shown), which is connected to a drive mechanism 6, the force arm 8 is provided with a pressure sensor 10 matched with the pressure signal amplifier 5.

Preferably, the first welding head 701 and the second welding head 702 are made of pure copper, so that the welding precision is high, the high temperature resistance is realized, and meanwhile, the high welding pressure can be borne.

Preferably, the welding controller can be arranged in the welding control cabinet, so long as the actual work is conveniently arranged; and simultaneously the utility model discloses only protect the hardware architecture, as for software programming among the welding controller belongs to prior art, not the utility model discloses an within the protection scope.

When welding aluminum alloy or aluminium material, detect the pressure variation of material in the welding through pressure sensor to send the signal to welding accuse controller department through pressure signal amplifier 5, show the pressure variation that receives, realize the automatically regulated to welding parameter through adjusting welding parameter, can weld the work piece of the different thickness of the same material through automatically regulated, and need not carry out welding parameter's regulation to the work piece of every thickness. Just this practical application scope is wide, mainly welds to aluminium and aluminium alloy material, also can realize welding the steel material equally, when welding the steel material, does not use pressure sensor monitoring welding in the pressure variation of material can. The surface of the base 1 is provided with a plurality of bolts 2 for fixing.

Fig. 2 is the utility model provides a left side view of robot soldering turret, like fig. 2, the left side mid portion of base 1 is provided with potential device 3, potential device 3 includes first transformer 301, second transformer 302, first transformer 301, second transformer 302 set up respectively on base 1's the right flank, and in the middle of base 1's right side for pleasing to the eye, convenient parallelly connected, first transformer 301, second transformer 302 longitudinal symmetry set up, first transformer 301, second transformer 302 are parallelly connected and can improve output current, first transformer 301, second transformer 302 link to each other with first soldered connection 701, second soldered connection 702 through secondary soft copper strips 9.

Preferably, the first transformer 301 and the second transformer 302 are intermediate frequency transformers, and compared with a power frequency welding transformer, the intermediate frequency welding transformer is small in size and light in weight, can be installed on a welding tongs, reduces the weight of the whole welding tongs, and reduces the power consumption of the robot on the robot.

Referring to fig. 3, fig. 3 is a schematic view illustrating the connection between the water joint assembly and the water pipe; a water joint component 4 is arranged above the pressure changing device 3 and on the left side of the top of the base, the water joint component 4 is used for being connected with an external water source to play a role in supplying water, and the water joint component 4 comprises a first water through port 401, a second water through port 402, a third water through port 403, a fourth water through port 404 and a water joint body 405;

the interior of the water joint body 405 is of a cavity structure, a plurality of first water through openings 401 are formed in one side face of the water joint body 405, each first water through opening 401 comprises a water inlet and a water outlet, and the first water through openings 401 are connected with water pipes to realize water inlet and outlet of the water joint body 405;

in this embodiment, the number of the first water passage openings 401 is preferably 4, and the first water passage openings are divided into a group of water inlet openings and a group of water outlet openings.

The surface of the water connector body 405 opposite to the first water through hole 401 is provided with two groups of four second water through holes 402, each group comprises a water inlet and a water outlet, and the second water through holes 402 are connected with water pipes, wherein one group of water pipes is connected with the first welding head 701, and the other group of water pipes is connected with the second welding head 701.

The top of the water joint body 405 is further provided with two third water inlets 403, each of the two third water inlets 403 is respectively a water inlet and a water outlet, and the third water inlets 403 are connected with the first transformer 301 through water pipes;

the front side and the rear side of the water joint body 405 are provided with fourth water inlets 404, one of the fourth water inlets is a water inlet, the other one of the fourth water inlets is a water outlet, and the fourth water inlets 404 are connected with the second transformer 302 through water pipes.

The setting of multichannel hydrologic cycle realizes the electrode cooling to first soldered connection and second soldered connection, and first transformer, second transformer continuation work also can produce a large amount of heats simultaneously, and to the transformer cooling, effective extension device life.

A driving mechanism 6 is further arranged above the top of the base 1, the driving mechanism 6 includes a servo motor 601, a linear electric cylinder 602, and a slide rail 603, an output shaft of the servo motor 601 is connected to the linear electric cylinder 602, the servo motor 601 is electrically connected to a welding controller, the servo motor 601 is controlled to operate by the welding controller, the servo motor 601 is arranged above the linear electric cylinder 602, the linear electric cylinder 602 is slidably connected to the slide rail 603, the bottom of the slide rail 603 is fixedly connected to the top of the base, a first welding head 701 is arranged on the output shaft of the driving mechanism 6, the linear electric cylinder 602 is driven to move left and right by controlling the operation of the servo motor 601, and the linear electric cylinder 602 is simultaneously in sliding connection with the slide rail 603 in a matching manner, so that the linear electric cylinder 602 slides relative to the slide rail 603, the position of the linear electric cylinder 602 is adjusted by this method, and the relative position of the first welding head 701 and the second welding head, the welding precision is higher.

The maximum installation distance between the first welding head 701 and the second welding head 702 is 260mm, the first welding head 701 is detachably connected with the right end of the linear electric cylinder 602, and the second welding head 702 is detachably connected with the upper part of the force arm 8.

The force arm 8 comprises a horizontal part and a vertical part, one end of the horizontal part is fixedly connected with the base, the other end of the horizontal part is fixedly connected with the bottom end of the vertical part, and the top end of the vertical part is connected with a second welding head 702.

The copper strips 9 comprise first secondary soft copper strips 901 and second secondary soft copper strips 902, the first secondary soft copper strips 901 are arranged at the lower end of the driving mechanism 6, the first transformer 301 and the second transformer 302 are connected with the first welding head 701 through the first secondary soft copper strips 901, the second secondary soft copper strips 902 are arranged on one side face, close to the force arm 8, of the base 1, the first transformer 301 and the second transformer 302 are connected with the second secondary soft copper strips 902, the second secondary soft copper strips 902 are connected with one end of the force arm 8, and the second welding head is arranged at the other end of the force arm 8, so that power supply for the second welding head is achieved, and a loop is formed.

The working principle is as follows: after the pressure sensor 10 detects the signal, the signal is sent to the welding controller by the pressure signal amplifier 5, the pressure of the first welding head 701 on the article to be measured is adjusted by the welding controller, the servo motor 601 is controlled to drive the linear electric cylinder 602 to reciprocate relative to the slide rail, thereby controlling the relative distance between the first welding head 701 and the second welding head 702 to realize automatic adjustment, the first welding head 701 is convenient to move, high-strength working load caused by manual operation of a force arm is avoided, working strength is effectively reduced, workpieces of the same material and different thicknesses can be welded through automatic adjustment, the welding parameters of workpieces with different thicknesses are not required to be adjusted, the water joint is further arranged, the water joint assembly 4 is used for being connected with an external water source, the water joint is connected with the welding gun water joint in a matched water pipe mode, welding heat energy can be recovered through a water circulation mode, and resources are greatly saved.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; 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 invention can be understood in specific cases to those skilled in the art.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The robot welding tongs are characterized by comprising a base (1), a driving mechanism (6), a first welding head (701), a second welding head (702) and a force arm (8), wherein the driving mechanism (6) is arranged above the base (1), an output shaft of the driving mechanism (6) is connected with the first welding head (701), one end of the force arm (8) is connected with the second welding head (702), the other end of the force arm (8) is fixedly connected with the right side face of the base (1), the first welding head (701) and the second welding head (702) are oppositely arranged, a pressure signal amplifier (5) is arranged on the surface of the base, the pressure signal amplifier (5) is connected with a welding controller arranged inside a cabinet body, the welding controller is further connected with the driving mechanism (6) through a driver arranged inside the cabinet body, and a pressure sensing part matched with the pressure signal amplifier (5) is arranged on the transverse part of the force arm (8) A machine (10);

the first welding head (701) and the second welding head (702) are made of pure copper.

2. Robot soldering tweezers according to claim 1, characterized in that the surface of the base is provided with several bolts (2) for fixation.

3. The robot soldering turret according to claim 1, characterized in that a transformation device (3) is arranged at the middle part of the left side of the base (1), the transformation device (3) comprises a first transformer (301) and a second transformer (302), the first transformer (301) and the second transformer (302) are arranged at the middle of the right side of the base (1), the first transformer (301) and the second transformer (302) are connected in parallel, and the first transformer (301) and the second transformer (302) are connected with the first soldering joint (701) and the second soldering joint (702) through copper strips (9).

4. Robot electrode holder according to claim 3, characterized in that the first transformer (301), the second transformer (302) are intermediate frequency transformers.

5. The robot soldering turret according to claim 1, wherein a driving mechanism (6) is further disposed above the top of the base (1), the driving mechanism (6) includes a servo motor (601), a linear electric cylinder (602), and a slide rail (603), the servo motor (601) is disposed above the linear electric cylinder (602), the servo motor (601) is electrically connected to the driver, the slide rail (603) is disposed below the linear electric cylinder (602) and slides in cooperation, and a first soldering joint (701) is disposed at an output shaft of the driving mechanism (6).

6. A robot electrode holder according to claim 1, characterized in that the first welding head is detachably connected to the output shaft of the linear electric cylinder and that the second welding head (702) is detachably connected to the upper end of the longitudinal part of the arm (8).

7. The robot soldering turret according to claim 3, wherein the copper strips (9) include a first secondary soft copper strip (901) and a second secondary soft copper strip (902), the first secondary soft copper strip (901) is disposed at a lower end of the driving mechanism (6), the first transformer (301) and the second transformer (302) are connected to the first soldering head (701) through the first secondary soft copper strip (901), the second secondary soft copper strip (902) is disposed at a side surface of the base (1) close to the moment arm (8), the first transformer (301) and the second transformer (302) are connected to the second secondary soft copper strip (902), and the second secondary soft copper strip (902) is connected to one end of the moment arm (8).

8. The robot soldering turret according to any of claims 3 to 4, wherein a water joint assembly (4) is arranged above the transformer (3) and on the left side of the top of the base, and the water joint assembly (4) comprises a first water through opening (401), a second water through opening (402), a third water through opening (403), a fourth water through opening (404) and a water joint body (405);

the water joint comprises a water joint body (405), wherein the interior of the water joint body (405) is of a cavity structure, a plurality of first water through openings (401) are formed in one side face of the water joint body (405), each first water through opening (401) comprises a water inlet and a water outlet, and the first water through openings (401) are connected with a water pipe;

a second water through opening (402) is arranged on the surface of the water joint body (405) opposite to the first water through opening (401), the number of the second water through openings (402) is four, the number of the second water through openings is two, each group comprises a water inlet and a water outlet, meanwhile, the second water through openings (402) are all connected with water pipes, one group is connected with the first welding head (701) through a water pipe, and the other group is connected with the second welding head (702) through a water pipe;

the top of the water joint body (405) is also provided with two third water outlets (403), each third water outlet (403) is provided with a water inlet and a water outlet, and the third water outlets (403) are connected with the first transformer (301) through water pipes;

the front side and the rear side of the water joint body (405) are respectively provided with a fourth water inlet (404), one of the fourth water inlets is a water inlet, the other one of the fourth water inlets is a water outlet, and the fourth water inlets (404) are connected with the second transformer (302) through water pipes.