Welding gun anti-collision mechanism
By designing a multi-angle adjustment welding torch anti-collision mechanism, a single-axis robot and servo motor are used to achieve flexible position adjustment of the welding torch, and through the anti-collision detection function, the existing welding torch anti-collision device cannot rotate flexibly and lacks anti-collision detection. The problem has improved the safety and efficiency of welding equipment.
Patent Information
- Application Number
- CN202420894477.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The existing welding torch anti-collision devices cannot rotate flexibly from multiple angles, making them difficult to adapt to the welding needs of different products, and lacks anti-collision detection functions, resulting in equipment damage and safety hazards.
A welding torch anti-collision mechanism including a Y-axis fixed mounting plate, a single-axis robot, a single-phase servo motor, a collision avoidance device and a welding torch clamping seat are designed. The single-axis robot moves along the Y-axis and the single-phase servo motor in the x-z plane The inner rotation is 360 degrees, combined with the detection function of the planetary gear reducer and collision preventer, the multi-angle adjustment and collision protection of the welding gun are realized.
It improves the flexibility and accuracy of the welding torch, prevents collision and damage of the welding torch, enhances the safety and reliability of welding equipment, reduces maintenance costs, and provides a safer and more efficient welding environment.
Smart Images
Figure CN222243245U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of welding guns, in particular to an anti-collision mechanism for welding guns. Background Art
[0002] In recent years, with the increase in labor costs and the inherent demand for cost reduction and efficiency improvement, automated welding production has become an increasingly common trend. The widespread application of automated production equipment and the increasing degree of automation have placed increasing demands on the accuracy of production equipment. However, the high cost of purchasing welding manipulator equipment on the market has led to high costs for automated equipment. Therefore, many factories have begun to use two-axis and three-axis mechanical structures to replace manual operations in order to achieve the requirements of automated production and reduce equipment acquisition costs. The common welding gun clamping mechanisms on the market are currently large in size, have poor accuracy, lack flexibility, lack anti-collision detection, and are difficult to damage equipment and endanger the operator's own safety due to misoperation. It is suitable for meeting the welding needs of multiple angles and multiple products.
[0003] The prior art records a welding gun anti-collision device, including a frame, a mounting seat, a locking bolt, a mounting plate and a limit block component, etc. The limit block is fixedly connected to the front of the mounting plate, and the welding gun body is slidably connected to the middle of the mounting plate. The left side of the welding gun body is fixedly connected to a welding head, a limit groove is provided in the middle of the welding gun body, and a fixed block is fixedly connected to the right side of the inner wall of the frame. However, the welding gun anti-collision device cannot flexibly rotate the welding gun at multiple angles and quickly detect anti-collision signals to adapt to the welding needs of various products, because different products may have different shapes, sizes and materials, and require different welding angles and forces. Therefore, the existing welding gun anti-collision device is difficult to meet the diverse welding needs, and a more flexible and adjustable anti-collision device is needed to adapt to different production requirements. Utility Model Content
[0004] The utility model aims to provide a welding gun anti-collision mechanism, which can more flexibly adjust the welding angle.
[0005] The embodiment of the utility model is achieved as follows:
[0006] In a first aspect, the utility model provides a welding gun anti-collision mechanism, comprising a Y-axis fixed mounting plate and a single-axis robot driving the Y-axis fixed mounting plate to move along the Y-axis;
[0007] A single-phase servo motor is arranged on the Y-axis fixed mounting plate, and a bumper connecting transition plate capable of rotating with the output shaft in the xz plane is connected to the output shaft of the single-phase servo motor, a bumper is installed on the bumper connecting transition plate, a welding gun clamping seat is installed on the detection shaft of the bumper, and a welding gun clamping block for clamping the welding gun is arranged on the welding gun clamping seat.
[0008] In an optional embodiment, the output shaft of the single-phase servo motor is connected to the input shaft of the planetary gear reducer, a planetary gear reducer fixing plate is fixedly mounted on the Y-axis fixed mounting plate, and the planetary gear reducer is fixed on the planetary gear reducer fixing plate.
[0009] In an optional embodiment, a planetary gearbox connecting plate is connected to the power output shaft of the planetary gear reduction box, and the bumper connecting transition plate is fixed to the planetary gearbox connecting plate.
[0010] In an optional embodiment, a through hole for the power output shaft of the planetary gear reducer to extend into is provided in the middle of the planetary gear box connecting plate, and the end of the power output shaft of the planetary gear reducer is fixedly connected with a shaft end sealing plate, and the shaft end sealing plate is also fixedly connected to the planetary gear box connecting plate.
[0011] In an optional embodiment, a flat key is provided on the circumferential surface of the power output shaft of the planetary gear reducer, and a keyway that cooperates with the flat key is provided on the inner wall of the through hole.
[0012] In an optional embodiment, the welding gun clamping seat is provided with a first clamping arm and a second clamping arm at one end close to the bumper, the detection axis of the bumper is arranged along the z-axis direction and clamped between the first clamping arm and the second clamping arm, and the first clamping arm and the second clamping arm are connected at one end close to the bumper by an adjusting bolt.
[0013] In an optional embodiment, a clamping groove for the welding gun to extend into is provided on the welding gun clamping block, and a center line of the welding gun clamping groove forms an angle with the xy plane.
[0014] In an optional embodiment, a controller capable of controlling the start or stop of the single-phase servo motor is further included, and a pressure sensing element connected to the controller signal is provided in the bumper.
[0015] The beneficial effects of the embodiments of the utility model are:
[0016] The utility model provides a welding gun anti-collision mechanism with multi-angle adjustment, in which a single-axis robot can drive the welding gun to move along the y-axis, and a single-phase servo motor can drive the welding gun to rotate 360 degrees in the xz plane, thereby improving the flexibility of the welding gun. At the same time, the presence of the anti-collision device can prevent the welding gun from colliding with other objects or causing accidental damage.
[0017] The design and implementation method of the welding gun anti-collision mechanism in the utility model makes the position adjustment of the welding gun more convenient, accurate and efficient, and can be widely used in the welding industry, while reducing maintenance costs, improving work efficiency and product welding quality; it is beneficial to improve the safety, stability and reliability of welding equipment, reduce potential risks and losses, provide a safer and more efficient working environment for welding operations, avoid damage caused by collisions, and has high practical value and market prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 It is a schematic diagram of the structure of the welding gun anti-collision mechanism in the utility model;
[0020] Figure 2 It is a schematic diagram of the installation of the planetary gear box connecting plate and the planetary gear reduction box in the utility model.
[0021] Icons: 101-Y-axis fixed mounting plate; 102-planetary gear reducer fixed plate; 103-planetary gear box connecting plate; 104-shaft end sealing plate; 105-anti-collision device connecting transition plate; 106-anti-collision device; 107-adjusting bolt; 108-welding gun clamping seat; 109-single-axis robot; 110-single-phase servo motor; 111-planetary gear reducer; 112-clamping bolt; 113-welding gun clamping block; 114-flat key. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0025] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0026] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] Please refer to Figure 1 , this embodiment provides a welding gun anti-collision mechanism, including a Y-axis fixed mounting plate 101 and a single-axis robot driving the Y-axis fixed mounting plate 101 to move along the Y-axis;
[0029] A single-phase servo motor 110 is arranged on the Y-axis fixed mounting plate 101, and a bumper connecting transition plate 105 capable of rotating with the output shaft in the xz plane is connected to the output shaft of the single-phase servo motor 110, and a bumper 106 is installed on the bumper connecting transition plate 105, and a welding gun clamping seat 108 is installed on the detection shaft of the bumper 106, and a welding gun clamping block 113 for clamping the welding gun is arranged on the welding gun clamping seat 108.
[0030] The utility model provides a welding gun anti-collision mechanism with multi-angle adjustment, wherein the single-axis robot can drive the welding gun to move along the y-axis, and the single-phase servo motor 110 can drive the welding gun to rotate 360 degrees in the xz plane, thereby improving the flexibility of the welding gun. At the same time, the presence of the anti-collision device 106 can prevent the welding gun from colliding with other objects or causing accidental damage.
[0031] Traditional welding gun anti-collision devices may only work at specific angles or directions and cannot fully cover various situations that may occur during welding operations. The utility model improves the safety, stability and reliability of welding equipment, reduces potential risks and losses, and provides a safer and more efficient working environment for welding operations.
[0032] The utility model has the advantages of small size, simple structure, convenient adjustment, higher degree of freedom and better flexibility, and is suitable for use as a welding gun clamping device on various welding equipment, and can meet the welding needs of various products.
[0033] Example 1
[0034] This embodiment provides a welding gun anti-collision mechanism, such as Figure 1 and Figure 2 As shown, it includes a Y-axis fixed mounting plate 101, a planetary gear reducer fixed plate 102, a planetary gear box connecting plate 103, a shaft end sealing plate 104, an anti-collision device connecting transition plate 105, an anti-collision device 106, an adjusting bolt 107, a welding gun clamping seat 108, a single-axis robot 109, a single-phase servo motor 110, a planetary gear reducer 111, a clamping bolt 112, a welding gun clamping block 113 and a flat key 114.
[0035] Specifically, for the mechanical device part:
[0036] The Y-axis fixed mounting plate 101 is respectively provided with six M6 through threaded holes and three M6 cylindrical head hexagon socket screw countersunk holes are provided on the left side of the front end of the mounting plate. Six national standard 6mm cylindrical head hexagon socket screws with a length of 45mm are used to connect and fix the single-axis robot 109 through a threaded connection method, and three national standard 6mm cylindrical head hexagon socket screw countersunk holes on the left side of the front end are used to connect and fix the planetary gear reducer fixing plate 102 through a threaded connection method.
[0037] The planetary gear reducer fixing plate 102 is respectively provided with three M6 15mm depth threaded holes on the left side and four M5 through threaded holes on the front side, wherein three national standard 6mm cylindrical head hexagon socket screws with a length of 15mm are used to connect and fix to the Y-axis fixed mounting plate 101 through threaded connection, and four national standard 5mm cylindrical head hexagon socket screws with a length of 15mm are used on the back side to connect and fix to the front end of the planetary gear reducer 111 through threaded connection.
[0038] The planetary gearbox connecting plate 103 is provided with a 16mm diameter through hole with a 5cm keyway, a 35mm diameter 8mm deep countersunk hole, two M3 through threaded holes are provided in the countersunk hole, and two M5 cylindrical head hexagon socket screw countersunk holes are provided on the back of the planetary gearbox connecting plate 103. The power output shaft of the planetary gear reducer 111 and the flat key 114 are installed in combination with the 16mm diameter through hole for clearance fit, and the 35mm diameter 8mm deep countersunk hole is clearance fit with the shaft end sealing plate 104.
[0039] The shaft end sealing plate 104 has a diameter of 34mm and a thickness of 8mm. The front side is respectively provided with an M4 cylindrical head hexagon socket screw and two M3 cylindrical head hexagon socket screw countersunk holes are symmetrically provided. The shaft end sealing plate 104 and the planetary gear box connecting plate 103 are clearance-matched. A national standard 4mm cylindrical head hexagon socket screw with a length of 15mm is used to connect and fix to the power output shaft of the planetary gear reducer 111 through a threaded connection, and two national standard 3mm cylindrical head hexagon socket screws with a length of 12mm are used to connect and fix to the planetary gear box connecting plate 103 through a threaded connection.
[0040] The bumper connection transition plate 105 is provided with five M4 through threaded holes, and the rear right-angle edge is provided with an M5 15mm depth threaded hole, wherein five national standard 4mm cylindrical head hexagonal screws with a length of 12mm are used to connect and fix it to the bumper 106 through a threaded connection method, and two national standard 5mm cylindrical head hexagonal screws with a length of 15mm are used to connect and fix it to the planetary gear box connecting plate 103 through a threaded connection method.
[0041] The upper end of the bumper 106 is provided with five M4 cylindrical head hexagon socket screw countersunk holes, and the lower end is provided with a detection shaft with a diameter of 16 mm and a length of 20 mm, wherein the lower end cooperates with the adjusting bolt 107 and the welding gun clamping seat 108 to connect and fix the bumper 106 by interference fit. The bumper 106 can specifically select the ARS01500W model bumper 106 produced by Kunshan Rihao Welding and Cutting Equipment Co., Ltd., or other bumpers 106 with similar functions.
[0042] The upper end of the welding gun clamping seat 108 is provided with a countersunk hole with a diameter of 16.5mm and a depth of 30mm, and at the same time, the two sides are 2mm wide and 30mm long countersunk grooves, which cooperate with the adjusting bolts 107 to connect and fix the detection axis of the bumper 106 and adjust it 360 degrees. The lower end is provided with a 37.5mm long and 22.5mm deep groove and two M5 through-threaded holes, which cooperate with the welding gun clamping block 113 with a 37.5mm long and 12.5mm deep groove and the clamping bolts 112 to clamp and fix the welding gun.
[0043] The single-axis robot 109 is provided with eight through holes with a diameter of 6.2 mm, which are used to be fixed to the Y-axis fixed mounting plate 101 by threaded connection, and other reserved through holes are used for connecting and fixing external parts of the mechanism.
[0044] The single-phase servo motor 110 is provided with four through holes with a diameter of 5.5 mm, and is fixed to the M5 threaded holes at the rear end of the planetary gear reducer 111 by four national standard 5 cm cylindrical hexagonal screws with a length of 15 mm through threaded connection. The single-phase servo motor 110 provides power for vertical rotation and increases the rotational torque after being decelerated by the planetary gear reducer 111.
[0045] For the electrical installation part:
[0046] In this embodiment, a pressure sensing device is installed in the bumper 106. During the welding process, the bumper 106 outputs a 4-20MA current signal to feedback the current pressure value. When the welding gun is collided in any direction, the pressure value detected by the bumper 106 exceeds the pressure setting value, which will trigger the switch signal output. The welding system will process the received electrical signal and automatically stop the welding action according to the signal to prevent collision caused by excessive pressure.
[0047] Installation method:
[0048] Before installing the welding gun, remove the clamping bolt 112, place the welding gun into the groove of the welding gun clamping seat 108, and then install the welding gun clamping block 113. After adjusting it to a suitable position, use the clamping bolt 112 to lock the welding gun.
[0049] If a horizontal welding angle is required, the operator can manually rotate the welding gun clamping seat 108 and the welding gun clamping block 113 after loosening the adjusting bolt 107, adjust the welding gun to a suitable horizontal welding position, and then tighten the adjusting bolt 107 to complete the adjustment.
[0050] If there is a vertical welding angle requirement during the welding process, programming control can be performed in the welding equipment to drive and control the single-phase servo motor 110. The welding gun can rotate 360 degrees in the vertical plane. During the welding process, different angles can be set according to the welding angle requirements of different workpieces for welding. The real-time interpolation function can be realized with the single-axis robot 109 to set the movement trajectory and working range of the welding gun.
[0051] In this embodiment, the bumper 106 is an ARS01500W model bumper 106. The bumper 106 has a built-in multi-angle and omnidirectional pressure sensing element, rather than a single horizontal stress detection. A pressure regulating element is provided inside, which can be adjusted for different welding guns to increase the versatility of the mechanism. During welding processing and debugging, when the welding gun collides with the workpiece, contact stress is generated between them, which is transmitted to the guide shaft of the bumper 106 through the welding gun, and then the spring is squeezed to contract, driving the internal wedge block to move. The bumper 106 can be linked with other components to adjust the angle under the power output of the single-phase servo motor 110. When the welding gun collides beyond a certain displacement, the detection pressure value exceeds the set pressure setting value, which will trigger the switch signal output. After the welding system receives the electrical signal, the single-phase servo motor 110 will move in the opposite direction until the feedback shows that the current pressure value is normal, the switch signal is disconnected, and the energy output is disconnected, triggering corresponding protection measures, such as stopping the welding action, stopping the output of welding energy, and outputting an alarm prompt signal. After the collision fault is eliminated, the welding gun will automatically reset with high reset accuracy.
[0052] The utility model has a simple structure, is easy to install, has a reliable collision protection function, is easy to adjust, and has a higher degree of freedom and good flexibility. It is suitable for use as a welding gun clamping device on various welding equipment and can meet the welding needs of a variety of products. The utility model is connected through modules and adopts a single-phase servo motor 110 and a planetary gear reducer 111 adjustment mechanism to achieve precise adjustment of the welding gun in the vertical 360-degree direction. The welding angle can be switched at any time during the welding process, and the repeated positioning accuracy is high. In addition, the design with an angle adjustment bolt in the horizontal direction allows the welding gun to adjust its angle when necessary to meet the requirements of the welding angle. At the same time, the utility model has an anti-collision detection function, which detects the stress on the welding gun in real time and interacts the electrical signal with the welding system, which can improve the safety and stability of the welding equipment. The design of the welding gun clamping seat 108 and the welding gun clamping block 113 combination block can effectively ensure the stability and reliability of the welding gun. In short, the design and implementation method of the welding gun anti-collision mechanism in this embodiment makes the position adjustment of the welding gun more convenient, accurate and efficient, and can be widely used in the welding industry, while reducing maintenance costs, improving work efficiency and product welding quality; it is beneficial to improve the safety, stability and reliability of welding equipment, reduce potential risks and losses, provide a safer and more efficient working environment for welding operations, avoid damage caused by collisions, and has high practical value and market prospects.
[0053] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A welding gun anti-collision mechanism, characterized in that: It includes a Y-axis fixed mounting plate and a single-axis robot that drives the Y-axis fixed mounting plate to move along the Y-axis; A single-phase servo motor is arranged on the Y-axis fixed mounting plate, and a bumper connecting transition plate capable of rotating with the output shaft in the xz plane is connected to the output shaft of the single-phase servo motor, a bumper is installed on the bumper connecting transition plate, a welding gun clamping seat is installed on the detection shaft of the bumper, and a welding gun clamping block for clamping the welding gun is arranged on the welding gun clamping seat.
2. The welding gun anti-collision mechanism according to claim 1, characterized in that: The output shaft of the single-phase servo motor is connected to the input shaft of the planetary gear reducer, a planetary gear reducer fixing plate is fixedly mounted on the Y-axis fixing mounting plate, and the planetary gear reducer is fixed on the planetary gear reducer fixing plate.
3. The welding gun anti-collision mechanism according to claim 2, characterized in that: A planetary gearbox connecting plate is connected to the power output shaft of the planetary gear reduction box, and the bumper connecting transition plate is fixed to the planetary gearbox connecting plate.
4. The welding gun anti-collision mechanism according to claim 3, characterized in that: A through hole for the power output shaft of the planetary gear reducer to extend into is provided in the middle of the planetary gear box connecting plate, and the end of the power output shaft of the planetary gear reducer is fixedly connected with a shaft end sealing plate, and the shaft end sealing plate is also fixedly connected to the planetary gear box connecting plate.
5. The welding gun anti-collision mechanism according to claim 4, characterized in that: A flat key is arranged on the circumferential surface of the power output shaft of the planetary gear reduction box, and a key groove matching with the flat key is arranged on the inner wall of the through hole.
6. The welding gun anti-collision mechanism according to claim 1, characterized in that: The welding gun clamping seat is provided with a first clamping arm and a second clamping arm at one end close to the bumper, the detection axis of the bumper is arranged along the z-axis direction and clamped between the first clamping arm and the second clamping arm, and the first clamping arm and the second clamping arm are connected at one end close to the bumper by an adjusting bolt.
7. The welding gun anti-collision mechanism according to claim 1, characterized in that: The welding gun clamping block is provided with a clamping groove for the welding gun to extend into, and the center line of the welding gun clamping groove forms an angle with the xy plane.
8. The welding gun anti-collision mechanism according to claim 1, characterized in that: It also includes a controller capable of controlling the start or stop of the single-phase servo motor, and a pressure sensing element connected to the controller signal is arranged in the bumper.