Welding robot arm for automobile production
By introducing left-right and forward-backward movement components into the welding robot arm, combined with slide rails and chute structures, the problem of poor robot arm stability was solved, achieving stable movement and positioning, extending service life and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2026-04-07
AI Technical Summary
During the extension and rotation of existing welding robot arms, the stability of the robotic arm gradually deteriorates, and the joints are prone to damage due to material fatigue, leading to motion imbalance.
By employing left-right and forward-backward moving components, combined with slide rails and chute structures, and through a drive mechanism and locking mechanism, the welding robot arm achieves stable movement and positioning, thereby increasing its service life.
It improves the stability and lifespan of welding robot arms, avoids damage caused by unstable movement, and is simple to operate and low in cost.
Smart Images
Figure CN224088260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts processing technology, specifically a welding robot arm for automotive production. Background Technology
[0002] In the automobile production process, the chassis is an important part that supports the entire vehicle structure. It is mainly made of metal sheets or tubing and usually requires welding robotic arms for welding to improve the welding quality and production efficiency of the chassis.
[0003] Welding robot arms are complex systems characterized by high precision, multiple inputs and outputs, high nonlinearity, and strong coupling. Due to their unique operational flexibility, they have been widely used in industrial assembly, safety and explosion-proof applications, and other fields.
[0004] For example, utility model patent with publication number CN214769899U discloses an adjustable welding robot arm, including a support platform, a support base, a rotating arm, and a sliding mechanism, which allows the operator to perform height adjustment for the robot before welding, thereby facilitating the positioning of the welding robot on the workpiece.
[0005] However, in existing technologies, during the extension and rotation of the robotic arm, as the extension length and swing amplitude of the robotic arm continuously increase, the torque and shear forces on the base of the robotic arm gradually increase during operation. After the robotic arm performs the set operation, under the action of gravity, the overall stability of the robotic arm gradually deteriorates, especially at the base where the force is greater. It needs to resist the action of gravity through its own connection strength to maintain the overall balance. After the robotic arm performs long-term and repeated operations, the connecting parts at the connection points will experience material fatigue due to the repeated action of gravity, causing damage to the connection points and resulting in the robotic arm losing its balance.
[0006] Therefore, a welding robot arm for automobile production is proposed to address the above problems. Utility Model Content
[0007] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background technology, this utility model proposes a welding robot arm for automobile production.
[0008] The technical solution adopted by this utility model to solve its technical problem is: a welding robot arm for automobile production, including a base and a welding robot arm body disposed on the base. A moving mechanism is connected below the base. The moving mechanism includes a left and right moving component and a front and back moving component disposed above the left and right moving component. The left and right moving component includes a base plate. A slide rail component is disposed above the base plate. A support frame is disposed above the slide rail component. The support frame can reciprocate along the slide rail component. The front and back moving component is disposed on the support frame. The front and back moving component includes a sliding groove component. The base is connected to the sliding groove component.
[0009] Preferably, the slide assembly includes multiple slides on the base plate, each slide having a protrusion structure. The slides are provided with multiple sliders that can cooperate and connect with the protrusion structure. The support frame is mounted above the sliders. The arrangement of the slide sliders makes the movement more stable during left and right movements and effectively avoids the problem of inaccurate movement paths.
[0010] Preferably, the slide rail assembly includes multiple slide rails with trapezoidal structures, and a slide plate that can slide and connect with the trapezoidal structure is provided above the slide rail. The slide plate can slide along the slide rail, and the matching connection between the slide rail and the slide plate makes the movement process more stable.
[0011] Preferably, the slide assembly is provided with a drive mechanism, which drives the slider to move on the slide, making it more convenient to move.
[0012] Preferably, the driving mechanism includes: a rack disposed on the side of the base plate, a mounting bracket disposed on the support frame, a drive motor disposed on the mounting bracket, a gear disposed at the drive shaft of the drive motor, and the gear engaging with the rack. Electric movement is more efficient and the positioning is more accurate.
[0013] Preferably, the base is provided with a plurality of movable handles along the welding direction, and each movable handle includes a mounting plate, with handles on both sides of the mounting plate to facilitate movement and positioning when moving forward and backward.
[0014] Preferably, the slide plate is provided with a locking mechanism, which includes a locking bolt. The locking bolt passes through the slide plate and is in contact with the slide groove, further avoiding the problem of unstable sliding of the welding robot arm body during the welding process.
[0015] Preferably, the welding robot arm body includes a first rotating arm disposed on the upper surface of the base, a second rotating arm rotatably mounted on the rear surface of the first rotating arm, and a welding torch mounted on one end of the second rotating arm. Preferably, the welding robot arm can rotate while moving, enabling multi-directional welding.
[0016] Preferably, a control panel is installed on one side of the base. The control panel is electrically connected to the welding robot arm body and the drive motor, and is used to operate and control the welding robot arm body and the drive motor, so as to facilitate operation and realize intelligent control.
[0017] The advantages of this utility model are:
[0018] 1. This utility model, through the setting of two moving structures, enables the utility model to move forward and backward while moving left and right, realizing multi-directional movement. It solves the problem of unstable center of gravity of welding robot caused by the need for extension of the welding robot arm body, increases the service life of welding robot, and at the same time, the movement operation is simple and low cost.
[0019] 2. The movement method of this utility model is achieved by combining sliding, which makes the sliding path accurate and the movement process stable, thus avoiding the problem of damage to the welding robot arm due to unstable movement during the movement.
[0020] 3. The forward and backward movement of this utility model adopts manual movement, which simplifies the adjustment method of this application, reduces costs, and the handles on both sides facilitate forward and backward movement, making it easy for personnel to operate. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the intermediate axis side view of the present invention;
[0023] Figure 2 This is a schematic diagram of the left-right movable component structure;
[0024] Figure 3 This is a schematic diagram of the forward and backward moving component structure;
[0025] Figure 4 This is a schematic diagram of the main structure of a welding robot arm.
[0026] In the diagram: 1. Base; 2. Welding robot arm body; 3. Left and right movement assembly; 4. Forward and backward movement assembly; 5. Slide assembly; 6. Support frame; 7. Drive mechanism; 8. Moving handle; 201. First rotating arm; 202. Second rotating arm; 203. Welding torch; 301. Base plate; 401. Slide assembly; 402. Slide; 403. Slide plate; 404. Locking mechanism; 501. Slide; 502. Slider; 601. Mounting bracket; 701. Rack; 702. Drive motor; 703. Gear. Detailed Implementation
[0027] 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.
[0028] Please see Figure 1-4 As shown, a welding robot arm for automobile production includes a base 1 and a welding robot arm body 2 disposed above the base 1. A moving mechanism is connected below the base 1. The moving mechanism includes a left-right moving component 3 and a front-back moving component 4 disposed above the left-right moving component 3. The left-right moving component 3 includes a base plate 301. A slide rail component 5 is disposed above the base plate 301. A support frame 6 is disposed above the slide rail component 5. The support frame 6 can reciprocate along the slide rail component 5. The front-back moving component 4 is disposed on the support frame 6. The front-back moving component 4 includes a sliding groove component 401. The base 1 is connected to the sliding groove component 401.
[0029] Preferably, the slide assembly 5 includes multiple slides 501 disposed on the base plate 301, specifically two slides 501, respectively located on the front and rear sides of the base 1 in corresponding directions. The slides 501 are protrusion structures, and multiple sliders that can cooperate and connect with the protrusion structures are provided on the slides 501. There are two sliders, one slide 501 corresponding to one slider. The support frame 6 is disposed above the sliders 601. The arrangement of the slides 501 and sliders makes the movement more stable during left and right movements, and can effectively avoid the problem of inaccurate movement lines.
[0030] Preferably, the slide rail assembly 401 includes multiple slide rails 402 with trapezoidal structures. Each slide rail 402 consists of two slide rails 402. Above each slide rail 402 is a sliding plate 403 that can slide and connect with the trapezoidal structure. The sliding plate 403 is a rectangular sliding plate 403. The sliding plate 403 can slide along the slide rail 402. The cooperative connection between the slide rail 402 and the sliding plate 403 makes the movement process more stable.
[0031] Preferably, the slide assembly 5 is provided with a drive mechanism 7, which drives the slider to move on the slide 501, making it easier to move.
[0032] Preferably, the drive mechanism 7 includes: a rack 701 disposed on the side of the base plate 301, a mounting bracket 601 disposed on the support frame 6, a drive motor 702 disposed on the mounting bracket 601, a gear 703 disposed at the drive shaft of the drive motor 702, and the gear 703 cooperating with the rack 701. The electric movement is more efficient and the movement positioning is more accurate.
[0033] Preferably, the base 1 is provided with a plurality of movable handles 8 along the welding direction. Each movable handle 8 includes a mounting plate, and handles are provided on both sides of the mounting plate to facilitate movement and positioning when moving forward and backward.
[0034] Preferably, the slide plate 403 is provided with a locking mechanism, which includes a locking bolt. The locking bolt passes through the slide plate 403 and is in contact with the slide groove 402, further avoiding the problem of unstable sliding of the welding robot arm body 2 during the welding process.
[0035] Preferably, the welding robot arm body 2 includes a first rotating arm 201 disposed on the upper surface of the base 1, a second rotating arm 202 rotatably mounted on the rear surface of the first rotating arm 201, and a welding torch 203 mounted on one end of the second rotating arm 202. Preferably, the welding robot arm can rotate while moving, enabling multi-directional welding.
[0036] Preferably, a control panel is installed on one side of the base 1. The control panel is electrically connected to the welding robot arm body 2 and the drive motor 702, and is used to control the operation of the welding robot arm body 2 and the drive motor 702, so as to facilitate operation and realize intelligent control.
[0037] Working Principle: This utility model includes a welding robot arm body 2. It adjusts the position of the workpiece to be welded. First, it moves using a left-right moving component 3. Specifically, a PLC controller controls a servo motor to rotate a gear 703. The gear 703 moves on a rack 701, which in turn drives the slide rail 501 on the base plate 301 of the support frame 6 to slide. This, in turn, moves the forward-backward moving component 4 and the welding robot arm body 2, both located above the support frame 6, left and right, thus completing the left-right movement and position adjustment. After the movement is complete, the motor stops, ensuring the left-right direction remains fixed and preventing issues during welding due to welding... The movement causes left and right offset. After the left and right components are fixed, if it is necessary to move forward and backward, then the forward and backward movement components are used to move forward and backward according to the needs of the workpiece. Specifically, the operator stands in the direction that needs to be moved forward and backward, loosens the locking bolt of the locking mechanism, and then drags it with the handle, so that the welding robot arm body 2 can slide on the slide 402 to determine the position to be moved. Then the locking mechanism is tightened to ensure that the welding robot arm body 2 will not move forward and backward due to the welding action during the welding process. Then the PLC controller is used to control the welding robot arm body 2 to complete the welding action.
[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A welding robot arm for automobile production, comprising a base (1) and a welding robot arm body (2) disposed above the base (1), characterized in that: The base (1) is provided with a moving mechanism below it. The moving mechanism includes a left and right moving component (3) and a front and back moving component (4) located above the left and right moving component (3). The left and right moving component (3) includes a base plate (301). A slide rail component (5) is located above the base plate (301). A support frame (6) is located above the slide rail component (5). The support frame (6) can move back and forth along the slide rail component (5). The front and back moving component (4) is located above the support frame (6). The front and back moving component (4) includes a slide groove component (401). The base (1) is connected to the slide groove component (401).
2. The welding robot arm for automobile production according to claim 1, characterized in that: The slide assembly (5) includes multiple slides (501) on the base plate. The slides (501) are protrusion structures. The slides (501) are provided with multiple sliders (502) that can cooperate and connect with the protrusion structures. The support frame (6) is located above the sliders (502).
3. The welding robot arm for automobile production according to claim 1, characterized in that: The slide assembly (401) includes multiple slides (402) with trapezoidal structures. Above the slides (402) is a sliding plate (403) that can slide and connect with the trapezoidal structure. The sliding plate (403) can slide along the slides (402).
4. The welding robot arm for automobile production according to claim 2, characterized in that: The slide assembly (5) is provided with a drive mechanism (7), which drives the slider (502) to move on the slide (501).
5. The welding robot arm for automobile production according to claim 4, characterized in that: The drive mechanism (7) includes: a rack (701) disposed on the side of the base plate (301), a mounting bracket (601) provided on the support frame (6), a drive motor (702) provided on the mounting bracket (601), a gear (703) provided at the drive shaft of the drive motor (702), and the gear (703) cooperating with the rack (701).
6. The welding robot arm for automobile production according to claim 1, characterized in that: The base (1) is provided with a plurality of movable handles (8) along the welding direction. The movable handles (8) include a mounting plate, and handles are provided on both sides of the mounting plate.
7. The welding robot arm for automobile production according to claim 3, characterized in that: The slide plate (403) is provided with a locking mechanism (404), which includes a locking bolt. The locking bolt passes through the slide plate (403) and is in contact with the slide groove (402).
8. The welding robot arm for automobile production according to claim 1, characterized in that: The welding robot arm body (2) includes a first rotating arm (201) disposed on the upper surface of the base, a second rotating arm (202) rotatably mounted on the rear surface of the first rotating arm (201), and a welding torch (203) mounted on one end of the second rotating arm (202).
9. A welding robot arm for automobile production according to claim 5, characterized in that: A control panel is installed on one side of the base (1). The control panel is electrically connected to the welding robot arm body (2) and the drive motor (702) for operation control of the welding robot arm body (2) and the drive motor (702).