Fire extinguisher steel cylinder welding device

Abstract

The utility model discloses a welding device for a steel cylinder of a fire extinguisher, and belongs to the technical field of steel cylinder machining. Comprising a machine tool and fixing assemblies. The machine tool comprises a supporting body and a machine base. The supporting body is vertically arranged on one side of the bed base; the fixing assembly is rotationally arranged on one side of the supporting body and located above the bed base. The fixing assembly comprises a rotating disc, the rotating disc is rotationally arranged on one side of the supporting body, clamping plates are arranged on the side, away from the supporting body, of the rotating disc in the circumferential direction, safe edges are fixedly installed on the inner sides of the ends, away from the rotating disc, of the clamping plates, and pin hoops are installed between every two adjacent clamping plates through bolts. The pin hoop and the clamping plate form a cylindrical frame; according to the fire extinguisher steel cylinder welding device, the stability of neck bottle bodies during rotary welding is improved, then the probability of dislocation between the bottle bodies is reduced, and therefore the welding quality is improved.

Description

Technical Field

[0001] This application relates to the field of fire extinguisher bottle manufacturing technology, specifically a welding device for fire extinguisher cylinders. Background Technology

[0002] Fire extinguisher cylinders are containers used to store high-pressure carbon dioxide gas or other flame-retardant materials. They are mainly produced by stamping half of the cylinder, and then welding the two halves together to form a complete fire extinguisher cylinder.

[0003] Patent CN112756830A discloses a welding device for fire extinguisher cylinders, including a working platform with two telescopic rotating devices arranged opposite each other. A bottom clamping component is connected to one telescopic device, and a mouth clamping component is connected to the other. A support is also connected to the working platform, and a first hydraulic cylinder is connected to the support. A bottle cap clamping component is connected to the piston rod of the first hydraulic cylinder, and the bottle cap clamping component cooperates with the mouth clamping component. A through groove is provided on the working platform, and a second hydraulic cylinder is vertically arranged below the working platform. A receiving plate is connected to the piston rod of the second hydraulic cylinder and is disposed within the through groove. The advantages of this invention are: This device splices fire extinguisher cylinders using a receiving plate, bottom clamping component, bottle cap clamping component, and mouth clamping component, and then welds the three joints with a welding torch, effectively improving production efficiency.

[0004] The aforementioned fire extinguisher cylinder welding device uses a suction cup fixing method, which is not very stable. This makes it easy for the two half cylinders to misalign, resulting in poor cylinder quality after welding. Furthermore, the weld thickness after misalignment welding is uneven, affecting the internal pressure resistance of the fire extinguisher and even causing the fire extinguisher cylinder to be scrapped. Utility Model Content

[0005] In view of the shortcomings of existing fire extinguisher cylinder welding devices mentioned in the background art, this application provides a fire extinguisher cylinder welding device that has the advantages of increasing the stability of the cylinder during welding, reducing the probability of misalignment between cylinders, and improving welding quality, thus solving the technical problems mentioned in the background art.

[0006] The technical solution adopted by this application to solve its technical problem is: a fire extinguisher cylinder welding device, including a machine tool and a fixing component; the machine tool includes a support body and a bed; the support body is vertically arranged on one side of the bed; the fixing component is rotatably arranged on one side of the support body and located above the bed;

[0007] The fixing assembly includes a rotating disk, which is rotatably mounted on one side of the support body. A clamping plate is circumferentially arranged on the side of the rotating disk away from the support body. A protective edge is fixedly installed on the inner side of the end of the clamping plate away from the rotating disk. A pin is installed between two adjacent clamping plates by bolts, and the pin and the clamping plate form a cylindrical frame. Thus, the bottle neck is concentrically arranged with the rotating disk, and the clamping plate clamps the waist of the bottle neck through the protective edge, increasing the contact area with the bottle neck and indirectly increasing the friction, thereby increasing the stability of the bottle during welding.

[0008] Furthermore, a hinge seat is provided on the side of the rotating disk away from the support body, and the hinge seat corresponds one-to-one with the clamping plate; a horizontal swing is pinned to the hinge seat, and the end of the horizontal swing away from the hinge seat is arranged radially outward along the rotating disk, and the end of the horizontal swing away from the hinge seat is fixedly connected to the corresponding clamping plate; thus, by adjusting the included angle between the horizontal swing and the hinge seat, the diameter between the clamping plates can be changed to accommodate neck bottles of different diameters.

[0009] Furthermore, a beveled seat is fixedly installed at one end of the clamping plate near the rotating disk, and an adjustment groove is provided on the side of the beveled seat, with the long side of the adjustment groove parallel to the long side of the beveled seat; the end of the horizontal swing away from the hinge seat is connected to the corresponding clamping plate by bolts, and the bolts are located in the adjustment groove; thus, it is convenient to adjust the position of the edge protector at the neck of the bottle.

[0010] Furthermore, an inner support structure is fixedly installed at the center of the rotating disk. The inner support structure includes an electrically controlled telescopic rod. One end of the electrically controlled telescopic rod is located inside the neck of the bottle, and a support arm is hinged to the end. Thus, the support arm, together with the edge protector, clamps the neck of the bottle, reducing the chance of slippage between the edge protector and the neck of the bottle later, thereby reducing the probability of misalignment between the bottles.

[0011] Furthermore, the fixed part of the electrically controlled telescopic rod is fitted with a ring seat, and multiple support arms are provided. The multiple support arms are arranged circumferentially on the side of the ring seat, and one end is hinged to the ring seat. The movable part of the electrically controlled telescopic rod is fixedly installed with a support head seat. Multiple connectors are circumferentially hinged to the side of the support head seat. The end of the connector away from the support head seat is hinged to the middle section of the support arm. Thus, when the neck bottle rotates, the electric telescopic rod locks. Due to the centrifugal force, the neck bottle moves away from the support body along the axis. In the locked state of the electric telescopic rod, the connectors provide support force for the support arm, thereby strengthening the fixing effect of the internal support structure.

[0012] Furthermore, the diameter of the ring seat is much smaller than the diameter of the neck of the bottle body.

[0013] Furthermore, a slide seat is slidably mounted on the bed base, and a support frame is hinged to the top of the slide seat. The support frame is arc-shaped, with the arc facing the fixed component. Rollers are rotatably mounted at both ends of the support frame. The rollers are tangent to the waist of the neck bottle body, and the axis of the rollers is parallel to the axis of the neck bottle body. Thus, the rollers assist the neck bottle body in maintaining stable rotation.

[0014] Furthermore, the support body is equipped with a drive mechanism, and a gear is provided at the end of the rotating disk away from the clamping plate; the gear meshes with the drive mechanism; thus, during welding, the rotating disk drives the fixed component to rotate, causing the neck of the bottle to rotate, which provides convenience for workers to perform circumferential welding.

[0015] The beneficial effects of this application are as follows: The fire extinguisher cylinder welding device provided by this application has a fixing component, the neck of the cylinder is concentrically set with the rotating plate, and the clamping plate holds the waist of the neck of the cylinder through the edge protection, which increases the contact area with the neck of the cylinder and indirectly increases the friction, thereby increasing the stability of the cylinder during welding.

[0016] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. These will be referred to below. Figures 1-4 This application will be described in further detail. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0018] In the attached diagram:

[0019] Figure 1 This is an overall schematic diagram of a welding device for fire extinguisher cylinders according to this application;

[0020] Figure 2 This is an assembly drawing of the fixing components and the bottle neck;

[0021] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point A;

[0022] Figure 4 This is a three-dimensional schematic diagram of the internal support structure;

[0023] The following are the labeling elements in the figure:

[0024] 11. Support body; 12. Bed seat; 13. Slide seat; 131. Support frame; 132. Roller; 2. Fixing assembly; 21. Rotary disk; 2211. Inclined side seat; 2212. Adjustment groove; 221. Clamping plate; 222. Edge guard; 223. Pin clamp; 23. Internal support structure; 231. Electrically controlled telescopic rod; 232. Ring seat; 233. Support head seat; 234. Support arm; 235. Connector; 3. Neck bottle body. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0027] like Figures 1-4 As shown, this application provides a welding device for fire extinguisher cylinders. When welding fire extinguisher cylinders, the welding device optimizes the fixing method of the necked half-bottle (i.e., necked bottle 3), increases the stability of the necked bottle 3 during rotational welding, and reduces the probability of misalignment between the bottles, thereby improving the welding quality.

[0028] Reference Figure 1 , Figure 2 The welding device includes a machine tool and a fixed assembly 2. The machine tool includes a support body 11 and a bed 12. The support body 11 is vertically arranged on one side of the bed 12. The fixed assembly 2 is rotatably arranged on one side of the support body 11 and located above the bed 12. A robotic arm is arranged on one side of the bed 12, and a welding head is fixedly installed at one end of the robotic arm. The height of the welding head above the ground is the same as the height of the center of the fixed assembly 2 above the ground, and the welding head is located on the side of the fixed assembly 2 away from the support body 1.

[0029] The fixing component 2 includes a rotating disk 21, which is rotatably mounted on one side of the support body 11. A clamping plate 221 is circumferentially arranged on the side of the rotating disk 21 away from the support body 11. A protective edge 222 is fixedly installed on the inner side of the end of the clamping plate 221 away from the rotating disk 21. A pin 223 is installed between two adjacent clamping plates 221 by bolts. The pin 223 and the clamping plate 221 form a cylindrical frame. Thus, the neck bottle body 3 is concentrically arranged with the rotating disk 21. The clamping plate 221 clamps the waist of the neck bottle body 3 through the protective edge 222, which increases the contact area with the neck bottle body 3 and indirectly increases the friction, thereby increasing the stability of the bottle body during welding.

[0030] Reference Figure 1 , Figure 3 A hinge seat is provided on the side of the rotating disk 21 away from the support body 11, and the hinge seat corresponds one-to-one with the clamping plate 221. A horizontal swing is pinned to the hinge seat, and the end of the horizontal swing away from the hinge seat is arranged radially outward along the rotating disk 21. The end of the horizontal swing away from the hinge seat is fixedly connected to the corresponding clamping plate 221. Thus, by adjusting the included angle between the horizontal swing and the hinge seat, the diameter between the clamping plates 221 can be changed to accommodate neck bottle bodies 3 of different diameters.

[0031] Wherein: a beveled seat 2211 is fixedly installed at one end of the clamping plate 221 near the rotating disk 21, and an adjustment groove 2212 is provided on the side of the beveled seat 2211, the long side of the adjustment groove 2212 is parallel to the long side of the beveled seat 2211; the end of the horizontal swing away from the hinge seat is connected to the corresponding clamping plate 221 by bolts, and the bolts are located in the adjustment groove 2212; thus, it is convenient to adjust the position of the edge protector 222 at the neck of the bottle body 3.

[0032] The support body is equipped with a drive mechanism, and a gear is provided at the end of the rotating disk away from the clamping plate; the gear meshes with the drive mechanism for transmission.

[0033] An inner support structure 23 is fixedly installed at the center of the rotating disk 21. The inner support structure 23 includes an electrically controlled telescopic rod 231. One end of the electrically controlled telescopic rod 231 is located inside the neck bottle body 3, and a support arm 234 is hinged to the end. Thus, the support arm 234, together with the edge protector 222, clamps the neck bottle body 3, reducing the chance of slippage between the edge protector 222 and the neck bottle body 3 in the later stage, thereby reducing the probability of misalignment between the bottles.

[0034] Reference Figure 4The fixed part of the electrically controlled telescopic rod 231 is fitted with a ring seat 232. Multiple support arms 234 are provided, and the multiple support arms 234 are arranged circumferentially on the side of the ring seat 232, with one end hinged to the ring seat 232. The movable part of the electrically controlled telescopic rod 231 is fixedly installed with a support head seat 233. Multiple connectors 235 are circumferentially hinged to the side of the support head seat 233. The end of the connector 235 away from the support head seat 233 is hinged to the middle section of the support arm 234. The diameter of the ring seat 232 is much smaller than the diameter of the neck of the bottle body 3. Therefore, when the bottle body 3 rotates, the electric telescopic rod 231 locks. Due to the centrifugal force, the bottle body 3 moves away from the support body 1 along the axis. In the locked state of the electric telescopic rod 231, the connector 235 provides support force for the support arm 234, thereby strengthening the fixing effect of the internal support structure.

[0035] Reference Figure 1 , Figure 2 A slide seat 13 is slidably mounted on the bed seat 12. A support frame 131 is hinged to the top of the slide seat 13. The support frame 131 is arc-shaped and the arc opening faces the fixed component 2. Rollers 132 are rotatably mounted on both ends of the support frame 131. The rollers 132 are tangent to the waist of the neck bottle body 3, and the axis of the rollers 132 is parallel to the axis of the neck bottle body 3.

[0036] In addition, a movable seat is slidably mounted on the bed 12. The movable seat is located on the side of the slide 13 away from the support body 11. The movable seat is equipped with a second drive mechanism. The first drive mechanism works synchronously with the second drive mechanism. The fixed component without the internal support structure is installed on one side of the movable seat and is connected to the drive mechanism for transmission. The other tail bottle is clamped by the fixed component without the internal support structure, so that the tail bottle and the neck bottle 3 are arranged opposite to each other.

[0037] In summary, before installing the neck bottle body 3, the distance between the movable part and the fixed part of the electrically controlled telescopic rod 231 is at its maximum value; this allows the support arm 234 to retract close to the movable part, thereby facilitating the assembly of the inner support structure 23 with the neck bottle body 3.

[0038] After the neck bottle body 3 is placed between the clamps 221, the electrically controlled telescopic rod 231 retracts, and the movable part drives the support head 233 to approach the ring seat 232. The connector 235 pushes the support arm 234 to unfold and support the neck bottle body 3, and the electrically controlled telescopic rod 231 enters the locked state. Then, the clamps 221 are manually adjusted so that the edge protector 222 fits the waist of the neck bottle body 3, and then it is fixed with the pin 223. Thus, the neck bottle body 3 is fixed.

[0039] Similarly, the tail bottle is clamped by the fixed component on the moving seat without the internal support structure, and the welding port of the tail bottle is aligned with the welding port of the neck bottle. The robotic arm on one side of the bed 12 controls the welding head to work at the connection.

[0040] It should be noted that the parts not covered by this utility model are the same as or can be implemented using existing technology; the drive mechanism in this utility model can be implemented using existing motor-driven pulleys or gear sets.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A welding device for fire extinguisher cylinders, comprising a machine tool and a fixing assembly (2), characterized in that: The machine tool includes a support body (11) and a bed (12); the support body (11) is vertically arranged on one side of the bed (12); the fixing component (2) is rotatably arranged on one side of the support body (11) and located above the bed (12); The fixing component (2) includes a rotating disk (21), which is rotatably disposed on one side of the support body (11). A clamping plate (221) is circumferentially disposed on the side of the rotating disk (21) away from the support body (11). A guard edge (222) is fixedly installed on the inner side of the end of the clamping plate (221) away from the rotating disk (21). A pin clamp (223) is installed between two adjacent clamping plates (221) by bolts. The pin clamp (223) and the clamping plate (221) form a cylindrical frame.

2. The fire extinguisher cylinder welding device according to claim 1, characterized in that: A hinge seat is provided on the side of the rotating disk (21) away from the support body (11), and the hinge seat corresponds one-to-one with the clamping plate (221); a horizontal swing is pinned to the hinge seat, and the end of the horizontal swing away from the hinge seat is arranged radially outward along the rotating disk (21), and the end of the horizontal swing away from the hinge seat is fixedly connected to the corresponding clamping plate (221).

3. The fire extinguisher cylinder welding device according to claim 2, characterized in that: A beveled seat (2211) is fixedly installed at one end of the clamping plate (221) near the rotating disk (21). An adjustment groove (2212) is provided on the side of the beveled seat (2211), and the long side of the adjustment groove (2212) is parallel to the long side of the beveled seat (2211). The end of the horizontal swing away from the hinge seat is connected to the corresponding clamping plate (221) by bolts, and the bolts are located in the adjustment groove (2212).

4. The fire extinguisher cylinder welding device according to claim 3, characterized in that: An inner support structure (23) is fixedly installed at the center of the rotating disk (21). The inner support structure (23) includes an electrically controlled telescopic rod (231). One end of the electrically controlled telescopic rod (231) is located inside the neck bottle body (3), and a support arm (234) is hinged to the end.

5. The fire extinguisher cylinder welding device according to claim 4, characterized in that: The fixed part of the electrically controlled telescopic rod (231) is fitted with a ring seat (232). Multiple support arms (234) are provided. The multiple support arms (234) are arranged circumferentially on the side of the ring seat (232), and one end is hinged to the ring seat (232). The movable part of the electrically controlled telescopic rod (231) is fixedly installed with a support head seat (233). Multiple connectors (235) are circumferentially hinged to the side of the support head seat (233). The end of the connector (235) away from the support head seat (233) is hinged to the middle section of the support arm (234).

6. The fire extinguisher cylinder welding device according to claim 5, characterized in that: The diameter of the ring seat (232) is much smaller than the diameter of the neck of the bottle body (3).

7. The fire extinguisher cylinder welding device according to claim 1, characterized in that: A slide (13) is slidably mounted on the bed base (12). A support frame (131) is hinged to the top of the slide (13). The support frame (131) is arc-shaped and the arc opening faces the fixing component (2). Rollers (132) are rotatably mounted on both ends of the support frame (131). The rollers (132) are tangent to the waist of the neck bottle body (3). The axis of the rollers (132) is parallel to the axis of the neck bottle body (3).

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