Robot welding tool clamp

Abstract

The utility model relates to a robot welding tool clamp, which belongs to the technical field of welding, and comprises a box body, four supporting legs are fixed at the bottom of the box body, a rotating mechanism capable of adjusting a clamping horizontal angle is arranged on the inner left wall of the box body, a supporting plate flush with the top of the box body is fixed at the top of the rotating mechanism, and the supporting plate is fixed at the bottom of the box body. Two clamping devices capable of clamping workpieces are arranged at the top of the supporting plate, an air suction assembly which penetrates through the bottom wall of the box body and can suck welding waste gas is arranged at the bottom of the box body, and a brake assembly for improving the stability of the rotating mechanism is arranged on the inner right wall of the box body. According to the robot welding tool clamp, the clamping device on the supporting plate is driven by the rotating mechanism to conduct horizontal angle adjustment, a user can be helped to place a workpiece on the clamp more easily, rotating adjustment can be conducted in the welding process, the welding efficiency and the welding effect are improved, a suction assembly can suck welding gas, and the welding efficiency is improved. The gas pollution to the environment is avoided.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically to a robotic welding fixture. Background Technology

[0002] Robot welding fixtures are mainly used to accurately position and reliably clamp workpieces during the welding process, ensuring the accuracy of the welded structure and preventing dimensional deviations caused by thermal deformation. By fixing the position of the workpiece, they improve the stability and efficiency of welding robot operations, reduce manual adjustment time, and adapt to the needs of automated production.

[0003] For example, Chinese Patent (Announcement No.: CN219358368U) discloses a welding robot fixture, including a welding table. The bottom surface of the welding table is symmetrically fixed to the top surface of a support base. The top surface of the welding table is symmetrically provided with two moving grooves, and clamping components are fixedly fixed in the moving grooves respectively. Two fixing plates are symmetrically fixed at both ends of the top surface of the welding table. The fixing plates are respectively provided with mounting holes, and electric push rods are fixedly fixed in the mounting holes respectively. The output ends of the electric push rods are respectively fixed to one side of a push block, and the bottom surfaces of the push blocks respectively contact the top surface of the welding table. The top surface of the welding table is provided with a waste trough, which is located between the two clamping components. The inner walls of the waste trough are symmetrically provided with sliding grooves on both sides, and the upper and lower bottom surfaces of the inner walls of the sliding grooves are respectively provided with limiting grooves. The waste trough in this utility model can conveniently collect the waste generated during welding and remove it by moving a scraper to avoid affecting the welding work.

[0004] However, the device cannot adjust the angle in the horizontal direction. When welding special workpieces, it may be necessary to adjust the angle during welding. However, the device is difficult to adjust the angle and needs to be stopped for adjustment, which will affect the welding efficiency. Therefore, a robotic welding fixture is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a robotic welding fixture with advantages such as adjustable horizontal angle, thus solving the problem of existing fixtures having difficulty in adjusting the horizontal angle.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a robot welding fixture, comprising a box body, four support legs fixed at the bottom of the box body, a rotating mechanism capable of adjusting the horizontal angle of clamping on the inner left wall of the box body, a support plate flush with the top of the rotating mechanism, two clamping devices for clamping workpieces on the top of the support plate, an air suction assembly penetrating the bottom wall of the box body and capable of absorbing welding exhaust gas at the bottom of the box body, and a brake assembly for improving the stability of the rotating mechanism on the inner right wall of the box body;

[0007] The rotating mechanism includes a servo motor fixed to the left wall of the housing. One end of the output shaft of the servo motor is fixed with a drive rod, and a drive gear is fixed to the outer surface of the drive rod. A support part is provided on the right side of the drive gear.

[0008] Furthermore, the support part includes a support cylinder, the bottom of which is fixed with a plane bearing, and the support cylinder is rotatably connected to the bottom wall of the housing through the plane bearing. From top to bottom, the outer surface of the support cylinder is fixed with a driven gear and a friction ring that mesh with the driving gear.

[0009] Furthermore, the support plate is rotatably connected to the top wall of the housing via a bearing, and the support plate is fixed to the support cylinder.

[0010] Furthermore, each of the clamping devices includes an electric actuator fixed to the top of the support plate, and the output end of the electric actuator is provided with a clamping part.

[0011] Furthermore, each of the clamping parts includes a housing fixed to the output end of the electric actuator. A micro motor is fixed to the inner top wall of the housing. One end of the output shaft of the micro motor is fixed to a threaded rod that is rotatably connected to the inner bottom wall of the housing via a bearing. Two clamping plates that penetrate the side wall of the housing are threadedly connected to the outer surface of the threaded rod.

[0012] Furthermore, each of the two outer shells has a movable groove that communicates with the inner cavity of the outer shell, and the front and rear sides of the clamping plate are in contact with the front and rear side walls of the movable groove.

[0013] Furthermore, the air intake assembly includes a conical tube fixed to the bottom of the support plate, and a stabilizing tube that penetrates the bottom wall of the box is rotatably connected to the inner side of the conical tube via a bearing. A filter box that is fixedly connected to the stabilizing tube is fixed to the bottom of the box, and an air pump located on the right side of the filter box is fixed to the bottom of the box. The air pump is fixedly connected to the filter box.

[0014] Furthermore, the top of the support plate has multiple connection holes that communicate with the tapered tube, and the filter box contains a filter element.

[0015] Furthermore, the brake assembly includes a cylinder fixed to the right wall of the housing, and a friction hand adapted to the friction ring is fixed to the right side of the cylinder.

[0016] Furthermore, the front of the housing is hinged to a movable door, and an observation window is embedded in the movable door.

[0017] Compared with the prior art, this utility model provides a robotic welding fixture with the following advantages:

[0018] 1. This robotic welding fixture uses a rotating mechanism to adjust the horizontal angle of the clamping device on the support plate, which helps users place the workpiece onto the fixture more easily. It can also be rotated and adjusted during the welding process to improve welding efficiency and welding effect.

[0019] 2. The robotic welding fixture can absorb the gases generated during welding through its suction components, thus preventing gas pollution of the environment or harm to the health of workers. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is an appearance drawing of the present utility model;

[0022] Figure 3 This is a schematic diagram of the clamping part of this utility model;

[0023] Figure 4 This is a three-dimensional cross-sectional view showing the connection relationship between the clamping plate and the threaded rod of this utility model.

[0024] In the diagram: 1. Housing, 2. Support leg, 3. Rotating mechanism, 301. Servo motor, 302. Active rod, 303. Active gear, 304. Support part, 3041. Support cylinder, 3042. Driven gear, 3043. Friction ring, 4. Support plate, 5. Clamping device, 501. Electric push rod, 502. Clamping part, 5021. Housing, 5022. Micro motor, 5023. Threaded rod, 5024. Clamping plate, 6. Suction assembly, 601. Conical tube, 602. Stabilizing tube, 603. Filter box, 604. Air pump, 7. Brake assembly, 701. Cylinder, 702. Friction hand. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 2This embodiment of a robotic welding fixture includes a housing 1. Four support legs 2 are fixed to the bottom of the housing 1, improving its stability. A rotating mechanism 3, capable of adjusting the clamping horizontal angle, is located on the inner left wall of the housing 1. A support plate 4, flush with the top of the housing 1, is fixed to the top of the rotating mechanism 3. Two clamping devices 5, capable of clamping workpieces, are located on the top of the support plate 4. A suction assembly 6, penetrating the bottom wall of the housing 1 and capable of absorbing welding fumes, is located at the bottom of the housing 1. A brake assembly 7, improving the stability of the rotating mechanism 3, is located on the inner right wall of the housing 1. A hinged door is connected to the front of the housing 1, with an observation window embedded within. The observation window allows the user to easily observe the working status of other parts inside the housing 1, and the door facilitates maintenance of the rotating mechanism 3 and brake assembly 7 within the housing 1.

[0027] In addition, the rotating mechanism 3 includes a servo motor 301 fixed to the left wall of the housing 1. One end of the output shaft of the servo motor 301 is fixed to the drive rod 302. The servo motor 301 is used to provide a continuous and stable fixed support force for the drive rod 302. The outer surface of the drive rod 302 is fixed with a drive gear 303. The right side of the drive gear 303 is provided with a support part 304. The support part 304 can rotate under the action of the drive gear 303, thereby driving the support plate 4 on it to rotate.

[0028] It should be further explained that the support part 304 includes a support cylinder 3041, which serves as a support plate 4. A plane bearing is fixed at the bottom of the support cylinder 3041, which ensures that the support cylinder 3041 can rotate stably. The support cylinder 3041 is rotatably connected to the inner bottom wall of the housing 1 through the plane bearing. From top to bottom, the outer surface of the support cylinder 3041 is fixed with a driven gear 3042 and a friction ring 3043 that mesh with the driving gear 303. The driving gear 303 drives the driven gear 3042 to rotate, and finally drives the support cylinder 3041 to rotate together. The support plate 4 is rotatably connected to the top wall of the housing 1 through the bearing, and the support plate 4 is fixed to the support cylinder 3041.

[0029] In this embodiment, the servo motor 301 drives the drive gear 303 on the drive rod 302 to rotate, which in turn causes the driven gear 3042 to drive the support cylinder 3041 to rotate, thereby adjusting the angle of the clamping device 5 on the support plate 4.

[0030] Please refer to it again. Figures 1 to 4To improve clamping stability, each clamping device 5 in this embodiment includes an electric push rod 501 fixed to the top of the support plate 4. The electric push rod 501 drives the clamping part 502 to move, thereby better adapting to workpieces of different sizes. The output end of the electric push rod 501 is provided with a clamping part 502. Each clamping part 502 includes a housing 5021 fixed to the output end of the electric push rod 501. A micro motor 5022 is fixed to the inner top wall of the housing 5021. The micro motor 5022 can ensure the stable and continuous rotation of the threaded rod 5023. One end of the output shaft of the micro motor 5022 is fixed to the threaded rod 5023, which is rotatably connected to the inner bottom wall of the housing 5021 through a bearing. The outer surface of the threaded rod 5023 is threadedly connected to two clamping plates 5024 that penetrate the side wall of the housing 5021. The outer surface of each threaded rod 5023 is fixed with external thread strips with opposite directions at both ends. The external thread strips with opposite directions can ensure that the two clamping plates 5024 move simultaneously relative to each other or in opposite directions.

[0031] It is known that each of the two outer shells 5021 has a movable groove on one side opposite to the inner cavity of the outer shell 5021. The front and rear sides of the clamping plate 5024 are in contact with the front and rear side walls of the movable groove. The movable groove can not only reserve enough space for the clamping plate 5024 to move, but also limit the clamping plate 5024.

[0032] Additionally, the suction assembly 6 includes a tapered tube 601 fixed to the bottom of the support plate 4. A stabilizing tube 602, penetrating the bottom wall of the housing 1, is rotatably connected to the inner side of the tapered tube 601 via a bearing. Since the tapered tube 601 rotates with the support plate 4, a bearing is used to isolate the stabilizing tube 602 from the tapered tube 601 to ensure the stability of the stabilizing tube 602. A filter box 603, fixedly connected to the stabilizing tube 602, is fixedly located at the bottom of the housing 1. A suction pump 604, located to the right of the filter box 603, is fixedly located at the bottom of the housing 1. The suction pump 604 provides stable power for gas flow and is fixedly connected to the filter box 603. The support plate 4... The top of the filter box 603 has multiple connection holes that communicate with the tapered tube 601. The filter box 603 contains a filter element that can filter large particles such as dust generated during the welding process. The side of the vacuum pump 604 away from the filter box 603 is fixedly connected to an exhaust block. The side of the exhaust pipe away from the vacuum pump 604 is fixedly connected to a collection device. The brake assembly 7 includes a cylinder 701 fixed to the right wall of the housing 1. The right side of the cylinder 701 is fixed with a friction hand 702 that is adapted to the friction ring 3043. When the support plate 4 is rotated to a suitable angle, the cylinder 701 will cause the friction hand 702 to press tightly against the friction ring 3043, thereby improving the stability of the support cylinder 3041.

[0033] In this embodiment, each outer shell 5021 has a limiting groove on its inner sidewall, and each clamping plate 5024 has a limiting block that extends into the limiting groove on the side near the electric push rod 501. The limiting groove and the limiting block cooperate to further improve the movement stability of the clamping plate 5024.

[0034] Understandably, each pair of clamping plates 5024 has a shim fixed on one side of each other. The shim can effectively protect the outer surface of the workpiece and increase the friction between the workpiece and the shim to improve the clamping stability.

[0035] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0036] The working principle of the above embodiments is as follows:

[0037] Before use, the servo motor 301 is started to drive the drive gear 303 on the drive rod 302 to rotate, which in turn drives the support cylinder 3041 inside the driven gear 3042 to rotate. After the two clamping devices 5 are adjusted to the appropriate position, the workpiece is placed inside the two clamping devices 5. The two electric push rods 501 cause the two clamping parts 502 to move closer to the workpiece. The pneumatic micro motor 5022 drives the threaded rod 5023 to rotate, which causes the two clamping plates 5024 to move relative to each other and clamp the workpiece. During the welding process, the gas generated by welding is drawn into the filter box 603 through the conical tube 601 and the stabilizing tube 602 by the air pump 604. After the gas is initially filtered, it is transferred to the collection device by the air pump 604. During the processing, the servo motor 301 can also be started to drive the workpiece to rotate, so as to cooperate with the welding robot to weld the workpiece better.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A robotic welding fixture clamp comprising a box (1), characterised in that: The bottom of the box (1) is fixed with four support legs (2). The inner left wall of the box (1) is provided with a rotating mechanism (3) that can adjust the horizontal angle of clamping. The top of the rotating mechanism (3) is fixed with a support plate (4) that is flush with the top of the box (1). The top of the support plate (4) is provided with two clamping devices (5) that can clamp the workpiece. The bottom of the box (1) is provided with a suction assembly (6) that penetrates the bottom wall of the box (1) and can absorb welding exhaust gas. The inner right wall of the box (1) is provided with a brake assembly (7) that improves the stability of the rotating mechanism (3). The rotating mechanism (3) includes a servo motor (301) fixed to the left wall of the housing (1). One end of the output shaft of the servo motor (301) is fixed with a drive rod (302). The outer surface of the drive rod (302) is fixed with a drive gear (303). A support part (304) is provided on the right side of the drive gear (303).

2. The robotic welding fixture of claim 1, wherein: The support part (304) includes a support cylinder (3041), the bottom of which is fixed with a plane bearing. The support cylinder (3041) is rotatably connected to the inner bottom wall of the housing (1) through the plane bearing. The outer surface of the support cylinder (3041) is fixed with a driven gear (3042) and a friction ring (3043) that mesh with the driving gear (303) from top to bottom.

3. The robotic welding fixture of claim 2, wherein: The support plate (4) is rotatably connected to the top wall of the housing (1) via a bearing, and the support plate (4) is fixed to the support cylinder (3041).

4. The robotic welding fixture of claim 1, wherein: Each of the clamping devices (5) includes an electric actuator (501) fixed to the top of the support plate (4), and the output end of the electric actuator (501) is provided with a clamping part (502).

5. The robotic welding fixture of claim 4, wherein: Each of the clamping parts (502) includes a housing (5021) fixed to the output end of the electric actuator (501). A micro motor (5022) is fixed to the inner top wall of the housing (5021). One end of the output shaft of the micro motor (5022) is fixed to a threaded rod (5023) that is rotatably connected to the inner bottom wall of the housing (5021) via a bearing. Two clamping plates (5024) that penetrate the side wall of the housing (5021) are threadedly connected to the outer surface of the threaded rod (5023).

6. A robotic welding fixture as defined in claim 5, wherein: Each of the two outer shells (5021) has a movable groove on one side opposite to the inner cavity of the outer shell (5021), and the front and rear sides of the clamping plate (5024) are in contact with the front and rear side walls of the movable groove.

7. The robotic welding fixture of claim 1, wherein: The air intake assembly (6) includes a tapered tube (601) fixed to the bottom of the support plate (4). The inner side of the tapered tube (601) is rotatably connected to a stabilizing tube (602) that penetrates the bottom wall of the box body (1) through a bearing. The bottom of the box body (1) is fixedly connected to a filter box (603) that is fixedly connected to the stabilizing tube (602). The bottom of the box body (1) is fixedly connected to a suction pump (604) located on the right side of the filter box (603). The suction pump (604) is fixedly connected to the filter box (603).

8. The robotic welding fixture of claim 7, wherein: The top of the support plate (4) has multiple connecting holes that communicate with the tapered tube (601), and the filter box (603) contains a filter element.

9. The robotic welding fixture of claim 2, wherein: The brake assembly (7) includes a cylinder (701) fixed to the right wall of the housing (1), and a friction hand (702) adapted to the friction ring (3043) is fixed to the right side of the cylinder (701).

10. The robotic welding fixture of claim 1, wherein: The front of the box (1) is hinged to a movable door, and an observation window is embedded in the movable door.

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