An automatic welding fixture for fire extinguisher brackets

Abstract

This utility model provides an automatic welding fixture for fire extinguisher brackets, comprising: a fixed base with a rotating chassis at its upper end; a cylinder fixing plate driven to rotate by a servo motor through a reducer on the rotating chassis; a positioning jig with a positioning pin at its upper end, positioned at the center of the cylinder fixing plate; a circumferential clamping mechanism including a small upright plate, a large upright plate clamping cylinder, and a clamping positioning plate with a supporting platform; and a top clamping mechanism including a top-pressing cylinder and a positioning clamping block with a clamping groove. This fixture, through the coordinated operation of its components, achieves automatic rotary welding of fire extinguisher brackets, improving welding efficiency, ensuring quality, reducing labor intensity, and is suitable for automated production of fire extinguisher brackets.

Description

Technical Field

[0001] This utility model relates to the technical field, and more specifically, to an automatic welding fixture for fire extinguisher brackets. Background Technology

[0002] Welding is a crucial step in the production of fire extinguisher brackets. Traditional welding methods for fire extinguisher brackets mainly rely on manual operation, which presents numerous problems.

[0003] First, manual welding is inefficient. Welding each component of the fire extinguisher bracket individually by hand is slow and cannot meet the demands of large-scale production. For example, in some large fire extinguisher manufacturers with large order volumes, the speed of manual welding cannot keep up with the production schedule, leading to extended production cycles and delayed delivery times.

[0004] Secondly, welding quality is inconsistent. The quality of manual welding largely depends on the welder's skill level and working condition. Different welders have different operating techniques and levels of proficiency, and even the same welder may experience fatigue after working for a long time, leading to fluctuations in welding quality. For example, the weld seam may have problems such as inconsistent width and insufficient weld strength, affecting the overall quality and safety of the fire extinguisher bracket.

[0005] In addition, manual welding is labor-intensive. Welders need to maintain a specific posture for extended periods, which can easily lead to physical fatigue and increase the risk of occupational diseases. Moreover, manual welding requires a significant investment of labor resources, and as labor costs continue to rise, so do the production costs for businesses. Utility Model Content

[0006] Based on the above-mentioned technical problems, this utility model proposes an automatic welding fixture for fire extinguisher brackets.

[0007] An automatic welding fixture for fire extinguisher brackets, characterized in that it comprises: A fixed base with a rotating chassis at its upper end; The cylinder mounting plate is mounted on a rotating chassis and is driven to rotate by a servo motor through a reducer. The positioning fixture is located at the center of the cylinder fixing plate, and its lower end is connected to the output shaft of the reducer through the reducer connecting sleeve. The upper end of the positioning fixture is provided with multiple positioning pins. The circumferential clamping mechanism includes multiple small vertical plate clamping cylinders and large vertical plate clamping cylinders evenly distributed around the circumference. Each cylinder output end is equipped with a clamping plate, and the clamping plate of the small vertical plate clamping cylinder is equipped with a clamping positioning plate with a support platform on the outside. The top pressing mechanism includes a top pressing cylinder and a positioning pressing block. The top pressing cylinder is fixed above the cylinder fixing plate by a fixing bracket. The positioning pressing block is located at the output end of the top pressing cylinder and is surrounded by a large vertical plate pressing groove and a small vertical plate pressing groove. The bottom disc is positioned by a positioning pin, and the top pressure cylinder drives the positioning and clamping block to press the bottom disc; the large and small upright plates are respectively inserted into the outer side of the corresponding clamping groove and pressed by the cylinder; the fixing clamp is placed on the support platform; the servo motor drives the whole to rotate to complete the automatic welding.

[0008] Furthermore, the positioning and clamping block is provided with convex ridges evenly distributed around its perimeter, and the large vertical plate clamping groove and the small vertical plate clamping groove are respectively provided on the outer side of different convex ridges. The large vertical plate clamping groove and the small vertical plate clamping groove are vertical groove structures, and the groove wall and the contact surface with the vertical plate are flat.

[0009] Furthermore, the bottom of the positioning and clamping block is provided with a clearance groove, the depth of which is greater than the height of the weld.

[0010] Furthermore, the positioning fixture has circumferentially distributed vertical support positions on its outer side, which correspond to the positions of the pressing cylinders, and the surface of the support positions is a horizontal support surface.

[0011] Furthermore, the clamp positioning plate located on the upper side of the support platform has an arc-shaped concave surface, the curvature of which matches the outer diameter of the fixing clamp.

[0012] Beneficial effects: 1. Improve welding efficiency: By driving the cylinder fixed plate and positioning fixture to rotate through the servo motor, the welding process is automated, enabling the automatic welding machine to complete the welding between parts in sequence, which greatly improves welding efficiency and meets the needs of large-scale production. 2. Ensure welding quality: The circumferential clamping mechanism and the top clamping mechanism accurately position and firmly clamp each component of the fire extinguisher bracket, ensuring that the position of each component is accurate and stable during the welding process, effectively avoiding welding quality problems caused by component position displacement, and ensuring the stability of welding quality; 3. Reduced labor intensity: This tooling achieves automated welding, reducing manual operation steps. Welders only need to perform simple operations such as placing and removing parts, which greatly reduces labor intensity and the risk of occupational diseases. 4. Improved production precision: The precise positioning structure design of each component, such as positioning pins, clamping grooves, and upright plate support positions, ensures the relative positional accuracy of each component of the fire extinguisher bracket during the welding process, thereby improving the overall quality and consistency of the product. Attached Figure Description

[0013] Figure 1 A schematic diagram of the structure of this utility model is shown; Figure 2 A schematic diagram of the circumferential clamping mechanism is shown. Figure 3 A schematic diagram of the positioning fixture is shown. Figure 4 A schematic diagram of the positioning and clamping block is shown; Figure 5 A schematic diagram of the welded product is shown; In the attached diagram: 1. Fixed base; 2. Rotating chassis; 3. Cylinder fixing plate; 4. Servo motor; 5. Reducer; 6. Positioning fixture; 7. Reducer connecting sleeve; 8. Small upright plate clamping cylinder; 9. Large upright plate clamping cylinder; 10. Clamping plate; 11. Clamping clamping plate; 12. Top pressure cylinder; 13. Positioning clamping block; 15. Arc plate; 14. Fixed frame; 61. Positioning pin; 62. Upright plate support position; 111. Support platform; 131. Large upright plate clamping groove; 132. Small upright plate clamping groove; 133. Clearance groove; 134. Protruding rib; 100. Bottom disc; 1001. Disc hole; 200. Large upright plate; 300. Small upright plate; 400. Fixing clamp. Detailed Implementation

[0014] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0015] like Figures 1-5 The automatic welding fixture for fire extinguisher bracket shown consists of a fixed base 1, a rotating base 2, a cylinder fixing plate 3, a positioning jig 6, a circumferential clamping mechanism, a top clamping mechanism, and other parts.

[0016] The upper end of the fixed base 1 is provided with a rotating base 2, which provides a stable support foundation for the entire tooling and allows the rotating base 2 to rotate flexibly. The rotating base 2 can be made of thrust ball bearing. The lower side of the thrust ball bearing is fixed on the fixed base 1, and the cylinder fixing plate 3 is fixed on the upper side of the thrust ball bearing.

[0017] The fixed base 1 ensures that the entire welding fixture remains stable during operation, without shaking or displacement, while the rotating chassis 2 provides a basis for the rotation of subsequent components, enabling automated rotation of the welding process and improving welding efficiency.

[0018] The cylinder fixing plate 3 is mounted on the rotating base plate 2 and is driven to rotate by the servo motor 4 through the reducer 5. The positioning fixture 6 is fixed at the center of the cylinder fixing plate 3 and its lower end is connected to the output shaft of the reducer 5 through the reducer connecting sleeve 7. The upper end of the positioning fixture 6 is provided with multiple positioning pins 61.

[0019] The servo motor 4 drives the cylinder fixing plate 3 to rotate through the reducer 5, which in turn drives the positioning jig 6 to rotate synchronously, so that the fire extinguisher bracket component placed on the positioning jig 6 can rotate automatically during the welding process, achieving all-round welding; the bottom disc 100 is provided with a disc hole 1001, and the positioning pin 61 on the positioning jig 6 is used to accurately position the bottom disc 100, ensuring that the bottom disc 100 is in an accurate position during the welding process, and providing a reference for the installation and welding of subsequent components.

[0020] The circumferential clamping mechanism includes three small vertical plate clamping cylinders 8 and one large vertical plate clamping cylinder 9 evenly distributed around the circumference. Each cylinder has a clamping plate 10 at its output end. The clamping plate 10 of the small vertical plate clamping cylinder 8 has a clamping positioning plate 11 with a support table 111 on its outer side.

[0021] The small vertical plate clamping cylinder 8 and the large vertical plate clamping cylinder 9 clamp and fix the small vertical plate 300 and the large vertical plate 200 respectively. The cylinders are evenly distributed in a circle around the cylinder fixing plate 3, which can apply uniform pressure to the small vertical plate 300 and the large vertical plate 200 from multiple directions to ensure their stable position during welding. The support platform 111 on the clamp positioning plate 11 is used to place the fixing clamp 400, providing accurate positioning and support for the fixing clamp 400 and ensuring the stability of the fixing clamp 400 during welding.

[0022] like Figure 2 As shown, since the large upright plate 200 is an arc-shaped plate 15, an arc-shaped plate 15 is set on the pressing plate 10 driven by the large upright plate pressing cylinder 9 to match the shape of the large upright plate 200.

[0023] The top pressing mechanism includes a top pressing cylinder 12 and a positioning pressing block 13. The top pressing cylinder 12 is fixed above the cylinder fixing plate 3 by a fixing bracket 14. The positioning pressing block 13 is located at the output end of the top pressing cylinder 12. The positioning pressing block 13 has a cross-shaped structure, and large vertical plate pressing grooves 131 and small vertical plate pressing grooves 132 are respectively provided on the four protrusions 134.

[0024] The top pressure cylinder 12 drives the positioning and clamping block 13 to move downwards, pressing the bottom disc 100 to ensure that the bottom disc 100 will not move during the welding process. The large vertical plate clamping groove 131 and the small vertical plate clamping groove 132 around the positioning and clamping block 13 are used to position the large vertical plate 200 and the small vertical plate 300 respectively, so that the large vertical plate 200 and the small vertical plate 300 can be accurately locked on the outside of the corresponding protrusion 134. Then, the large vertical plate clamping cylinder 9 and the small vertical plate clamping cylinder 8 are used to further clamp them, ensuring the accurate relative position between the components and improving the welding quality.

[0025] The large vertical plate clamping groove 131 and the small vertical plate clamping groove 132 on the protruding rib 134 are vertical protruding groove structures. This structural design can reduce the contact area between the large vertical plate 200 and the small vertical plate 300, which facilitates the reduction of friction when the positioning clamping block 13 moves upward. At the same time, the contact surface between its groove wall and the large vertical plate 200 and the small vertical plate 300 is flat, which can provide stable support and clamping force.

[0026] The bottom of the positioning clamping block 13 is provided with a clearance groove 133. The depth of the clearance groove 133 is greater than the height of the weld. This can prevent the positioning clamping block 13 from interfering with the weld during the welding process and ensure the smooth progress of the welding work.

[0027] The positioning jig 6 has circumferentially distributed vertical plate support positions 62 on its outer side. The vertical plate support positions 62 correspond to the positions of the large vertical plate clamping cylinder 9 and the small vertical plate clamping cylinder 8. Its surface is a horizontal support surface, which can provide additional support for the large vertical plate 200 and the small vertical plate 300, and enhance the stability of each component during the welding process.

[0028] The clamp positioning plate 11 located on the upper side of the support platform 111 has an arc-shaped concave surface, and the curvature matches the outer diameter of the fixing clamp 400, which can better fit the fixing clamp 400 and provide it with stable positioning and support.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic welding fixture for fire extinguisher brackets, characterized in that, include: A fixed base (1) is provided with a rotating base (2) at its upper end; The cylinder mounting plate (3) is mounted on the rotating chassis (2) and is driven to rotate by the servo motor (4) through the reducer (5); The positioning fixture (6) is fixedly located at the center of the cylinder fixing plate (3), and its lower end is connected to the output shaft of the reducer (5) through the reducer connecting sleeve (7). The upper end of the positioning fixture (6) is provided with multiple positioning pins (61). The circumferential clamping mechanism includes multiple small vertical plate clamping cylinders (8) and large vertical plate clamping cylinders (9) evenly distributed around the circumference. Each cylinder output end is provided with a clamping plate (10). The clamping plate (10) of the small vertical plate clamping cylinder (8) is provided with a clamping positioning plate (11) with a support table (111) on the outside. The top pressing mechanism includes a top pressing cylinder (12) and a positioning pressing block (13). The top pressing cylinder (12) is fixed above the cylinder fixing plate (3) by a fixing bracket (14). The positioning pressing block (13) is located at the output end of the top pressing cylinder (12) and is provided with a large vertical plate pressing groove (131) and a small vertical plate pressing groove (132) around it. The bottom disc (100) is positioned by a positioning pin (61), and the top pressure cylinder (12) drives the positioning clamping block (13) to press the bottom disc; the large vertical plate (200) and the small vertical plate (300) are respectively inserted into the outer side of the corresponding large vertical plate clamping groove (131) and small vertical plate clamping groove (132) and are pressed by the large vertical plate clamping cylinder (9) and the small vertical plate clamping cylinder (8); the fixing clamp (400) is placed on the support platform (111); the servo motor (4) drives the whole to rotate to complete the automatic welding.

2. The automatic welding fixture for fire extinguisher brackets according to claim 1, characterized in that, The positioning and clamping block (13) is provided with circumferentially distributed protrusions (134) around its perimeter. The large vertical plate clamping groove (131) and the small vertical plate clamping groove (132) are respectively located on the outside of different protrusions (134). The large vertical plate clamping groove (131) and the small vertical plate clamping groove (132) are vertical protruding groove structures, and the contact surface between their groove walls and the large vertical plate (200) and the small vertical plate (300) is a plane.

3. The automatic welding fixture for fire extinguisher brackets according to claim 1, characterized in that, The bottom of the positioning and clamping block (13) is provided with a clearance groove (133), and the depth of the clearance groove (133) is greater than the height of the weld.

4. The automatic welding fixture for fire extinguisher brackets according to claim 1, characterized in that, The positioning fixture (6) has circumferentially distributed upright plate support positions (62) on its outer side. The upright plate support positions (62) correspond to the positions of the large upright plate pressing cylinder (9) and the small upright plate pressing cylinder (8). The surface of the upright plate support position (62) is a horizontal support surface.

5. The automatic welding fixture for fire extinguisher brackets according to claim 1, characterized in that, The clamp positioning plate (11) located on the upper side of the support platform (111) has an arc-shaped concave surface, and the curvature matches the outer diameter of the fixing clamp (400).

Images