Anti-abrasion wire feeder bracket and welding robot

Abstract

The utility model discloses an anti-abrasion wire feeder bracket and a welding robot, and relates to the technical field of welding machine wire feeders. A connecting plate is connected with a machine body of the welding robot, the top face of the connecting plate is provided with a ball head fixing base and a plurality of first limiting holes, and the first limiting holes are rotatably connected with the first ends of rivets; the bottom face of the supporting plate is provided with a ball head and a plurality of second limiting holes, the ball head is rotatably connected with the ball head fixing base, and the second limiting holes are rotatably connected with the second ends of the rivets. According to the anti-abrasion wire feeder bracket, the technical problems that when a mechanical arm controls a welding gun to move, the end, connected with a wire feeder, of a cable assembly is bent repeatedly, fatigue abrasion is caused, and even direct damage is caused due to excessive bending are solved; the wire feeder rotates relative to the connecting plate along with the supporting plate with the ball head as the circle center and deviates by a certain angle, the phenomenon that the end, connected with the wire feeder, of the cable assembly is bent repeatedly is prevented, and therefore abrasion is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wire feeders of welding machines, and particularly relates to an anti-wear wire feeder bracket and a welding robot. Background Art

[0002] A wire feeder of a welding machine is an automatic wire feeding device that can continuously and stably feed welding wire according to set parameters under the control of a microcomputer. It is widely used in semi-automatic welding equipment and automatic welding equipment. The wire feeder transfers wire feeding pipes, cooling water, signal lines and other wire harnesses of the welding wire to the welding torch through a cable assembly to achieve welding work. The traditional wire feeder of a welding robot is often rigidly connected to the body of the welding robot through fasteners. During the movement of the front end robotic arm clamping the welding torch, the cable assembly connected to the tail of the welding torch moves along with the robotic arm.

[0003] However, the wire feeder is generally rigidly connected to the body of the welding robot. When the robotic arm controls the movement of the welding torch, one end of the cable assembly connected to the wire feeder will be repeatedly bent, resulting in fatigue wear, and even being directly damaged due to excessive bending. Therefore, an anti-wear wire feeder bracket and a welding robot for solving the above problems are proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an anti-wear wire feeder bracket and a welding robot, which solve the technical problem that when the robotic arm controls the movement of the welding torch, one end of the cable assembly connected to the wire feeder will be repeatedly bent, resulting in fatigue wear, and even being directly damaged due to excessive bending.

[0005] To achieve the above purpose, the utility model provides an anti-wear wire feeder bracket, which is arranged on the body of the welding robot and includes:

[0006] A connecting plate, which is connected to the body of the welding robot. A ball head fixing seat and a plurality of first limiting holes are arranged on the top surface of the connecting plate, and the first end of a rivet is rotatably connected to the first limiting holes;

[0007] A support plate, which is used to fix the wire feeder. A ball head and a plurality of second limiting holes are arranged on the bottom surface of the support plate. The ball head is rotatably connected to the ball head fixing seat, and the second end of the rivet is rotatably connected to the second limiting holes.

[0008] Preferably, the inner diameter of the first limiting hole is larger than the outer diameter of the first end of the rivet, and the inner diameter of the second limiting hole is larger than the outer diameter of the second end of the rivet.

[0009] Preferably, a plurality of first limiting holes are arranged at the four corner positions on the side surface of the connecting plate, and a plurality of second limiting holes are arranged at the four corner positions on the side surface of the support plate.

[0010] Preferably, a support spring is arranged on the outer peripheral side of the rivet. The top end of the support spring is connected to the support plate, and the bottom end of the spring is connected to the connecting plate.

[0011] Preferably, an assembly hole is arranged on the top surface of the connecting plate, and the ball head fixing seat is connected in a clamping manner with the assembly hole.

[0012] Preferably, a spherical groove is arranged on the top surface of the ball head fixing seat, and the spherical groove fits the lower part of the ball head.

[0013] Preferably, the upper end of the ball head fixing seat is threadedly connected to the ball head upper cover, and the bottom surface of the ball head upper cover abuts against the ball head.

[0014] Preferably, a mating hole is arranged on the top surface of the ball head upper cover, and the inner peripheral side of the mating hole fits the upper part of the ball head.

[0015] Preferably, the support plate is threadedly connected to the upper end of the screw rod, and the lower end of the screw rod is threadedly connected to the ball head.

[0016] A welding robot includes the anti-wear wire feeding machine bracket described in any one of the above.

[0017] Compared with the above background art, the anti-wear wire feeding machine bracket provided by the present utility model has the following beneficial effects: Through the rotational cooperation between the ball head fixing seat and the ball head, when the cable assembly moves a small distance along with the robotic arm, while the cable assembly pulls the wire feeding machine, the wire feeding machine can drive the support plate to rotate and deflect a certain angle relative to the connecting plate according to the force direction, so that the orientation and the force direction of the cable assembly at the connection position with the wire feeding machine are as consistent as possible, preventing the phenomenon that one end of the cable assembly connected to the wire feeding machine is repeatedly bent, thereby avoiding wear; Even when the cable assembly moves a large distance along with the robotic arm, after the cable assembly drives the support plate to rotate and deflect a certain angle relative to the connecting plate, the bending amplitude of the cable assembly is reduced, further preventing the cable assembly from being bent excessively and damaged, playing a role in protecting the cable assembly, effectively extending the service life of wire harnesses such as the wire feeding pipe of the welding wire, the cooling water pipe, and the signal wire, thereby reducing the maintenance cost and the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0019] Figure 1 It is a three-dimensional structural diagram of the bracket provided by the embodiment of the present utility model;

[0020] Figure 2 An exploded view of the bracket provided by the embodiment of the present utility model;

[0021] Figure 3 A three-dimensional structure diagram of the welding robot provided by the embodiment of the present utility model;

[0022] Figure 4 A three-dimensional structure diagram of the bracket provided by the embodiment of the present utility model.

[0023] Specifically, 1 - welding robot; 2 - connecting plate; 3 - ball head fixing seat; 4 - support plate; 5 - ball head; 6 - rivet; 7 - support spring; 8 - wire feeder; 9 - spherical groove; 10 - ball head upper cover; 11 - screw; 12 - robotic arm. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] In order to enable those skilled in the art in the technical field to better understand the solution of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] As Figure 1 and Figure 2 shown, a wear-resistant wire feeder bracket provided by the present application includes: a connecting plate 2 and a support plate 4 provided on the robotic arm 12.

[0027] The connecting plate 2 is provided on the fuselage of the welding robot 1. As the bottommost component of the bracket, the connecting plate 2 is fixedly connected to the fuselage of the welding robot 1. Preferably, the connecting plate 2 is connected to the side of the robotic arm 12 by means of bolt connection and can rotate synchronously with the robotic arm 12. Of course, the connecting plate 2 can also be connected to the robotic arm 12 by welding, and the connection method between the connecting plate 2 and the robotic arm 12 is not limited.

[0028] A support plate 4 is arranged above the connecting plate 2, and a wire feeder 8 is fixed on the top surface of the support plate 4. Among them, a ball head fixing seat 3 is arranged on the top surface of the connecting plate 2, and a ball head 5 is arranged on the bottom surface of the support plate 4. The ball head 5 is rotatably connected to the ball head fixing seat 3, that is, the support plate 4 can freely rotate and swing relative to the connecting plate 2; when the cable assembly moves with the robotic arm 12, while the cable assembly pulls the wire feeder 8, it drives the support plate 4 to rotate and deflect a certain angle relative to the connecting plate 2, that is, the wire feeder 8 adaptively adjusts its own angle according to the force direction, so that the orientation and force direction of the cable assembly at the connection position with the wire feeder 8 are as consistent as possible, preventing the phenomenon of repeated bending at one end of the cable assembly connected to the wire feeder 8.

[0029] It should be noted that the support plate 4 and the connecting plate 2 are assisted in connection by rivets 6. A plurality of first limit holes for connecting the lower ends of the rivets 6 are arranged on the top surface of the connecting plate 2, and a second limit hole for connecting the upper ends of the rivets 6 is arranged on the top surface of the support plate 4. The size of the movement allowance of the rivet 6 depends on the surplus length of the rivet 6 and the gaps between the rivet 6 and the first limit hole and the second limit hole. By adjusting the inner diameter sizes of the first limit hole and the second limit hole, the movement allowance of the rivet 6 can be restricted, thereby accurately controlling the maximum rotation angle of the support plate 4 relative to the connecting plate 2.

[0030] As Figure 3 shown, the welding robot 1 includes a fuselage and a robotic arm 12 arranged on the fuselage. A welding torch is arranged at the front end of the robotic arm 12. The welding torch is connected to the wire feeder 8 through a cable assembly. The robotic arm 12, as a component of the welding robot 1, drives the movement of the welding torch according to the instructions of the control system.

[0031] As Figure 4 shown, during operation, the robotic arm 12 drives the movement of the welding torch. After the wire feeder 8 is affected by the force of the cable assembly, when the cable assembly moves a small distance with the robotic arm 12, the cable assembly pulls the wire feeder 8, and the wire feeder 8 can drive the support plate 4 to move according to the force direction. The support plate 4 rotates and deflects a certain angle relative to the connecting plate 2 with the ball head 5 as the center, so that the orientation and force direction of the cable assembly at the connection position with the wire feeder 8 are always kept consistent; effectively preventing the phenomenon of repeated bending at one end of the cable assembly connected to the wire feeder 8, thereby avoiding wear, effectively prolonging the service life of the wire feeding pipe, cooling water pipe, signal wire and other wire harnesses in the cable assembly, improving production efficiency, and reducing maintenance costs and usage costs.

[0032] Among them, the inner diameter of the first limiting hole is larger than the outer diameter of the lower end of the rivet 6, and the inner diameter of the second limiting hole is larger than the outer diameter of the upper end of the rivet 6, so that the rivet 6 has a certain movement space in both the first limiting hole and the second limiting hole, ensuring that the support plate 4 can rotate freely relative to the connecting plate 2. Specifically, four first limiting holes and four second limiting holes are respectively provided. The four first limiting holes are arranged at the four corner positions on the side surface of the connecting plate 2, and the four second limiting holes are arranged at the four corner positions on the side surface of the support plate 4, making the overall bracket structure more stable to ensure that the four rivets 6 stably support the support plate 4.

[0033] In addition, a support spring 7 is arranged on the outer peripheral side surface of the rivet 6. The top end of the support spring 7 is connected to the upper support plate 4, and the bottom end of the spring is connected to the upper connecting plate 2. The support spring 7 can assist the support plate 4 to return to the initial position relative to the connecting plate 2. When the wire feeder 8 is not subjected to the pulling force of the cable assembly, the bracket can always maintain a certain initial form, enhancing the stability of the overall structure of the bracket.

[0034] An assembly hole is arranged on the top surface of the connecting plate 2, and the assembly hole is snap-connected to the ball head fixing seat 3. Alternatively, an assembly base can be directly welded on the top surface of the connecting plate 2, and then the ball head fixing seat 3 can be directly fixed and connected above the assembly base by welding. The ball head fixing seat 3 can freely select the fixing method with the connecting plate 2 according to the processing and manufacturing conditions. A spherical groove 9 is arranged on the top surface of the ball head fixing seat 3, and the spherical groove 9 fits the lower part of the ball head 5. Through the cooperation of the spherical groove 9 and the ball head 5, when the support plate 4 rotates freely relative to the connecting plate 2, there will be no jamming or loosening phenomenon. When the robotic arm 12 drives the welding torch to move, the wire feeder 8 can move stably under the pulling action of the cable assembly.

[0035] The upper end of the ball head fixing seat 3 is threadedly connected to the ball head top cover 10, and the bottom surface of the ball head top cover 10 holds the ball head 5. After the ball head 5 is connected to the ball head fixing seat 3, by rotating the ball head top cover 10 in the positive direction, the ball head top cover 10 gradually holds the ball head 5 until the ball head fixing seat 3 is stably connected to the ball head 5. The ball head top cover 10 is used to assist in fixing the ball head 5 and the ball head fixing seat 3. Only when the wire feeder 8 is subjected to a certain strength of pulling force from the cable assembly, the support plate 4 adaptively rotates a certain angle relative to the connecting plate 2 according to the direction of the force, further strengthening the overall structural strength of the bracket.

[0036] A mating hole is arranged on the top surface of the ball head top cover 10. On the one hand, the mating hole can assist in passing through the screw 11. Among them, the upper end of the screw 11 is threadedly connected to the support plate 4, and the lower end of the screw 11 is threadedly connected to the ball head 5. On the other hand, the inner peripheral side surface of the mating hole fits the upper part of the ball head 5. Through the mutual fitting of the inner peripheral side surface of the mating hole and the upper part of the ball head 5, the fitting strength between the ball head 5 and the ball head top cover 10 can be enhanced, further ensuring the overall structural strength of the bracket.

[0037] When the utility model is in use, the robotic arm 12 drives the welding torch to move. After the wire feeder 8 is subjected to the acting force of the cable assembly, when the cable assembly moves a small distance along with the robotic arm 12, the cable assembly pulls the wire feeder 8, and the wire feeder 8 can drive the pallet 4 to move according to the direction of the acting force. The pallet 4 rotates and deflects a certain angle relative to the connecting plate 2 with the ball head 5 as the center, so that the orientation and the acting force direction of the cable assembly at the connection position with the wire feeder 8 are always kept consistent; at this time, the rivet 6 and the spring rotate and deflect a certain angle relative to the pallet 4 to adapt to the rotation and deflection of the pallet 4 relative to the connecting plate 2.

[0038] In summary, through the rotational cooperation between the ball head fixed seat 3 and the ball head 5, the wire feeder 8 rotates and deflects a certain angle relative to the connecting plate 2 with the ball head 5 as the center along with the pallet 4, preventing the phenomenon that one end of the cable assembly connected to the wire feeder 8 is repeatedly bent, thereby avoiding abrasion. Even when the cable assembly moves a large distance along with the robotic arm 12, the bending amplitude of the cable assembly can still be reduced, further preventing the cable assembly from being damaged due to excessive bending, and playing a role in protecting the cable assembly.

[0039] In addition to the above-mentioned wire feeder bracket for anti-abrasion, the utility model also provides a welding robot including the wire feeder bracket for anti-abrasion disclosed in the above embodiment. For the structures of other parts of the welding robot, reference can be made to the prior art and will not be elaborated herein.

[0040] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0041] In this article, specific examples are used to elaborate on the principle and implementation manner of the utility model. The description of the above embodiments is only used to help understand the method and its core idea of the utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the utility model, several improvements and modifications can still be made to the utility model, and these improvements and modifications also fall within the protection scope of the utility model.

Claims

1. A wear-resistant wire feeder bracket, characterized in that: It is arranged on the body of the welding robot and includes: A connecting plate connected to the body of the welding robot, wherein a ball head fixing seat and a plurality of first limiting holes are provided on the top surface of the connecting plate, wherein the first limiting holes are rotatably connected to the first ends of the rivets; A support plate, used for fixing the wire feeder, wherein a ball head and a plurality of second limiting holes are provided on the bottom surface of the support plate, wherein the ball head is rotatably connected to the ball head fixing seat, and the second limiting hole is rotatably connected to the second end of the rivet; A support spring is arranged on the outer peripheral side of the rivet, the top end of the support spring is connected to the support plate, and the bottom end of the spring is connected to the connecting plate.

2. The wear-resistant wire feeder bracket according to claim 1, characterized in that: The inner diameter of the first limiting hole is larger than the outer diameter of the first end of the rivet, and the inner diameter of the second limiting hole is larger than the outer diameter of the second end of the rivet.

3. The wear-resistant wire feeder bracket according to claim 2, characterized in that: A plurality of first limiting holes are arranged at four corner positions of the side surface of the connecting plate, and a plurality of second limiting holes are arranged at four corner positions of the side surface of the supporting plate.

4. A wear-resistant wire feeder bracket according to any one of claims 1 to 3, characterized in that: An assembly hole is arranged on the top surface of the connecting plate, and the assembly hole is snap-connected to the ball head fixing seat.

5. The wear-resistant wire feeder bracket according to any one of claims 1 to 3, characterized in that: A spherical groove is arranged on the top surface of the ball head fixing seat, and the spherical groove fits the lower part of the ball head.

6. The wear-resistant wire feeder bracket according to claim 5, characterized in that: The upper end of the ball head fixing seat is threadedly connected to the upper cover of the ball head, and the bottom surface of the upper cover of the ball head supports the ball head.

7. The wear-resistant wire feeder bracket according to claim 6, characterized in that: A matching hole is arranged on the top surface of the upper cover of the ball head, and the inner peripheral side surface of the matching hole fits the upper part of the ball head.

8. The wear-resistant wire feeder bracket according to claim 7, characterized in that: The support plate is threadedly connected to the upper end of the screw rod, and the lower end of the screw rod is threadedly connected to the ball head.

9. A welding robot, characterized in that: It comprises the wear-resistant wire feeder bracket as described in any one of claims 1 to 8.

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