Valve seat welding equipment

Abstract

The utility model relates to the technical field of welding equipment, in particular to valve seat welding equipment which comprises a workbench, a feeding assembly is installed on one side of the top face of the workbench in the length direction, a welding station and a feeding station are arranged on the other side of the workbench in the width direction of the workbench, and the feeding assembly is connected with the feeding station. The valve seat is automatically conveyed to the feeding station through the feeding assembly, the valve seat and a tank body are pressed and pre-assembled through the pressing assembly, manual operation is reduced, the assembling precision is improved, the two tank body fixing assemblies are arranged on the carrying table and can be alternately switched between the feeding station and the welding station, welding and feeding can be synchronously carried out, and the welding efficiency is improved. The welding device saves time and improves welding efficiency, the rotary driving assembly is arranged to drive the tank fixing assembly to drive the tank to rotate at a constant speed during welding, girth welding is carried out on a joint between the tank and a valve seat in cooperation with a welding gun, and therefore the welding quality of the joint is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding equipment technical field especially relates to a valve seat welding equipment. BACKGROUND

[0002] The liquefied gas tank is a special pressure container for storing and transporting liquefied gas, which is mostly cylindrical in shape, mainly composed of a tank body, a valve seat and a valve, the tank body is the core part for storing liquefied gas, the valve seat is installed on the valve port at the top of the tank body by welding, used for connecting and installing the valve to control the inflow and outflow of gas and safety relief.

[0003] The traditional welding equipment is low in efficiency and low in automation, before welding, the tank body and the valve seat need to be assembled and positioned by manual operation, which consumes a long time and is low in efficiency, and due to the individual differences in the proficiency of manual operation, the assembly precision between the tank body and the valve seat is difficult to effectively unify, which may cause uneven welding seams, affecting the welding quality and the yield of welding production. SUMMARY

[0004] The utility model provides a valve seat welding equipment to solve the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A valve seat welding equipment, including the workbench, the workbench top length direction one side is installed with the feeding assembly, the workbench other side along its width direction is equipped with the welding station and the feeding station, the feeding assembly is connected with the feeding station, the workbench is located above the welding station and the feeding station and is installed with rotatable circular platform, the workbench is located one side of the welding station and is installed with the welding assembly and the welding assembly is located the outside of the platform circumference, the platform is equipped with the symmetrical tank fixed assembly in its radial center line both ends, two tank fixed assemblies are driven under the platform rotation and alternately move through the feeding station, the welding station.

[0007] Preferably, the feeding assembly includes a feeding disc, the discharge port of the feeding disc is provided with a feeding track, the other end of the feeding track is connected with a feeding module, and a movable arm is drivingly connected in the feeding module and can move into the feeding station.

[0008] Preferably, the feeding module includes a fixed frame, a pushing cylinder is installed above the top end of the fixed frame, the output end of the pushing cylinder is drivingly connected with the movable arm, the end of the feeding track away from the feeding disc is connected with the fixed frame, a longitudinal material taking cylinder is fixedly installed above the end of the feeding track, and a micro chuck is installed on the output end of the bottom of the material taking cylinder.

[0009] Preferably, the workbench is externally mounted with an outer frame outside the welding station and the feeding station, the top end of the outer frame is provided with a sheet metal shell, the sheet metal shell is provided with an exhaust pipe communicating with the welding station, and the outer frame is provided with cabinet doors slidingly connected with the workbench on both sides in the width direction of the workbench.

[0010] Preferably, the outer frame is provided with a pressing assembly above the feeding station, the pressing assembly comprises a downward pressing cylinder fixedly installed on the top surface of the sheet metal shell, and the bottom output end of the downward pressing cylinder is drivingly connected with a pressing block after penetrating through the sheet metal shell.

[0011] Preferably, the bottom of the carrier table is provided with a first rotary motor and two groups of rotary drive assemblies, the first rotary motor is drivingly connected with the carrier table, and the two groups of rotary drive assemblies are drivingly connected with two groups of tank body fixing assemblies.

[0012] Preferably, the tank body fixing assembly comprises a centering disc rotatingly connected with the carrier table, the centering disc is provided with a support column on the central axis, one side of the top end of the support column is located above the centering disc and is provided with a positioning groove, and the bottom end of the support column is connected with the rotary drive assembly through the carrier table.

[0013] Preferably, the rotary drive assembly comprises a driving pulley, a driven pulley and a tension pulley rotatably arranged at the bottom of the carrier table, the bottom of the driving pulley is provided with a second rotary motor, the output end of the second rotary motor is drivingly connected with the driving pulley, the driven pulley is fixedly connected with the bottom end of the support column, and the driving pulley, the driven pulley and the tension pulley are tensioningly connected with a synchronous belt.

[0014] Preferably, the cross section of the centering disc is trapezoidal.

[0015] Preferably, the welding assembly comprises a rack fixedly installed on the top surface of the welding station of the workbench, the top end of the rack is fixedly provided with a movable adjusting cylinder, the output end of the movable adjusting cylinder is arranged towards one side of the carrier table, and the tail end of the movable adjusting cylinder is provided with a welding gun through a connecting plate.

[0016] Compared with the prior art, the valve seat welding equipment has the following beneficial effects:

[0017] This invention automatically transports the valve seat to the loading station using a feeding assembly, and pre-assembles the valve seat and tank using a clamping assembly, reducing manual operation and improving assembly accuracy. By setting two tank fixing assemblies on the platform, the assembly and welding stations can be switched alternately, allowing welding and loading to be carried out simultaneously, saving time and improving welding efficiency. By setting a rotation drive assembly to drive the tank fixing assembly to rotate the tank at a uniform speed during welding, the welding torch can be used to perform circumferential welding on the joint between the tank and the valve seat, thereby improving the welding quality of the joint. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the present invention (second perspective).

[0020] Figure 3 A three-dimensional schematic diagram of the installation and connection structure between the platform and the tank body of this utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the connection relationship between the platform and the tank fixing assembly of this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram illustrating the positional connection relationship between the tank fixing component and the rotary drive component of this utility model.

[0023] Figure 6 This is a bottom view showing the driving connection relationship between the tank fixing component and the rotary drive component of this utility model;

[0024] Figure 7 This is a partial schematic diagram of the three-dimensional structure of the clamping component of this utility model;

[0025] Figure 8 This is a three-dimensional structural diagram of the feeding module of this utility model;

[0026] Figure 9 For the present utility model Figure 3 A magnified view of the structure at point A.

[0027] In the diagram: 1. Workbench; 2. Feeding assembly; 21. Loading tray; 22. Feeding track; 23. Loading module; 231. Fixing frame; 232. Pushing cylinder; 233. Movable arm; 234. Picking cylinder; 235. Miniature chuck; 3. Platform; 31. First rotary motor; 4. Tank fixing assembly; 41. Centering plate; 42. Support column; 5. Rotary drive assembly; 51. Second rotary motor; 52. Driving pulley; 53. Driven pulley; 54. Tensioning pulley; 6. Outer frame; 61. Sheet metal shell; 62. Cabinet door; 63. Exhaust pipe; 7. Pressing assembly; 71. Pressing cylinder; 72. Pressing block; 8. Welding assembly; 81. Stand; 82. Adjustable cylinder; 83. Welding torch. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0030] Reference Figures 1 to 9 A valve seat welding device includes a workbench 1. A feeding assembly 2 is installed on one side of the top surface of the workbench 1 along its length direction. A welding station and a loading station are provided on the other side of the workbench 1 along its width direction. The loading station is used to assemble the tank body and valve seat to be welded. The welding station is used to weld the tank body and valve seat. The feeding assembly 2 is connected to the loading station and is used to convey the valve seat to the loading station through the feeding assembly 2 and install it on the valve port of the tank body for pre-assembly.

[0031] The workbench 1 is located above the welding station and the loading station and is equipped with a rotatable circular platform 3. The workbench 1 is located on one side of the welding station and is equipped with a welding assembly 8, which is located on the outer side of the circumference of the platform 3. The welding assembly 8 is used to weld the pre-assembled tank and valve seat.

[0032] The platform 3 has symmetrical tank fixing components 4 at both ends of its radial center line. The two tank fixing components 4 move alternately through the loading station and welding station under the rotation of the platform 3. The tank fixing components 4 are used to fix the tank and are driven by the platform 3. The tank is first installed on the tank fixing component 4 located at one end of the loading station. The feeding component 2 conveys the valve seat into the loading station and pre-assembles the tank and valve seat. Then, the platform 3 rotates and drives the assembled tank and valve seat to rotate into the welding station. Welding is performed by the welding component 8. When the tank fixing component 4 at one end of the platform 3 is in the welding station, the tank fixing component 4 at the other end moves to the loading station to install the tank and valve seat. The two tank fixing components 4 can make welding and loading simultaneous, improving the efficiency of tank welding.

[0033] Furthermore, the feeding assembly 2 includes a feeding tray 21, which is used to place the valve seat. The feeding tray 21 has a feeding track 22 at its outlet. The feeding tray 21 conveys the valve seat to one end of the feeding module 23 through the feeding track 22 by vibration. The other end of the feeding track 22 is connected to the feeding module 23. The feeding module 23 is driven to connect to a movable arm 233 that can move to the feeding station. The feeding module 23 picks up the valve seat and conveys it to the feeding station for pre-assembly with the tank.

[0034] Furthermore, the feeding module 23 includes a fixed frame 231. A pushing cylinder 232 is installed above the top of the fixed frame 231. The output end of the pushing cylinder 232 drives and connects to the movable arm 233. The end of the feeding track 22 away from the feeding tray 21 is connected to the fixed frame 231. A longitudinally arranged picking cylinder 234 is fixedly installed above the end of the feeding track on the movable arm 233. A miniature chuck 235 is installed on the output end of the picking cylinder 234. In use, the feeding track 22 is provided with a concave section directly below the miniature chuck 235. The slot is used to fix the valve seat in place. The picking cylinder 234 pushes the micro chuck 235 down, so that the micro chuck 235 is close to the valve seat directly below it. The bottom of the micro chuck 235 has multiple sets of teeth. The multiple sets of teeth expand radially outward along the micro chuck 235 and abut against the inner wall of the valve seat, thereby picking up the valve seat. After the valve seat is picked up, the pushing cylinder 232 pushes the movable arm 233 to move the micro chuck 235 into the upper part of the tank in the loading station, so that the valve seat is pressed and connected to the valve port at the top of the tank by the clamping component 7 for pre-assembly.

[0035] Furthermore, an outer frame 6 is installed on the outside of the welding station and the loading station of the workbench 1. The top of the outer frame 6 is provided with a sheet metal shell 61 for protection and isolation. The sheet metal shell 61 is provided with a smoke exhaust pipe 63 that connects to the welding station. The smoke exhaust pipe 63 can be connected to an external air extraction device to exhaust the fumes generated during the welding process. Cabinet doors 62 that are slidably connected to the workbench 1 are installed on both sides of the outer frame 6 in the width direction of the workbench 1, so as to facilitate the installation of the tank onto the tank fixing assembly 4 through the cabinet door 62 at the loading station end, and to open the cabinet door 62 on the welding station side to take out the welded tank.

[0036] Furthermore, a clamping assembly 7 is installed directly above the loading station on the outer frame 6. The clamping assembly 7 includes a pressing cylinder 71 fixedly installed on the top surface of the sheet metal housing 61. The bottom output end of the pressing cylinder 71 passes through the sheet metal housing 61 and drives a pressure block 72 to be connected. The pressing cylinder 71 pushes the pressure block 72 down. The outer contour of one bottom end of the pressure block 72 is the same as the inner wall contour of the valve seat. Thus, when the micro chuck 235 places the valve seat above the valve port of the tank, the pressure block 72 presses down and contacts the valve seat, pressing and nesting the valve seat and the valve port of the tank together, thereby improving the firmness of the pre-assembly.

[0037] Furthermore, the bottom of the platform 3 is provided with a first rotary motor 31 and two sets of rotary drive components 5. The first rotary motor 31 is driven to connect with the platform 3. The first rotary motor 31 drives the platform 3 to rotate, thereby driving the two sets of tank fixing components 4 to switch between the loading station and the welding station. This allows the two sets of tank fixing components 4 to alternately pass through the loading station and the welding station, realizing the synchronous operation of loading and welding. At the same time, the two sets of rotary drive components 5 are driven to connect with the two sets of tank fixing components 4, so that the tank in the welding station can be driven to rotate by the tank fixing components 5 during the welding process, which facilitates the welding component 8 to perform circumferential welding on the joint between the tank and the valve seat.

[0038] Furthermore, the tank fixing assembly 4 includes a centering disk 41 rotatably connected to the platform 3. The centering disk 41 is used to fix and install the tank, providing stable support for the tank. A support column 42 is provided on the central axis of the centering disk 41. One side of the top of the support column 42 is located above the centering disk 41 and is provided with a positioning groove. The support column 42 is set on the central axis of the centering disk 41. The top of the support column 42 has a positioning groove. The positioning groove is coaxially arranged with the valve port of the tank. When the pressing assembly 7 drives the pressing block 72 through the pressing cylinder 71 to press and connect the valve seat and the valve port of the tank, the bottom wall of the positioning groove abuts against one end of the bottom of the valve seat, thereby limiting the depth of the valve seat embedded in the valve port of the tank, thus ensuring the consistency of the pre-assembly between the tank and the valve seat, thereby ensuring higher consistency in subsequent welding and helping to improve the welding yield.

[0039] Furthermore, the rotary drive assembly 5 includes a drive pulley 52, a driven pulley 53, and a tension pulley 54 rotatably mounted at the bottom of the platform 3. A second rotary motor 51 is provided at the bottom of the drive pulley 52, and the output end of the second rotary motor 51 is driven and connected to the drive pulley 52. ​​The driven pulley 53 is fixedly connected to one end of the bottom of the support column 42. A synchronous belt is tensioned between the drive pulley 52, the driven pulley 53, and the tension pulley 54. During use, the tank can rotate at a uniform speed during the welding process, which facilitates the welding assembly 8 to perform uniform circumferential welding between the joint of the tank and the valve seat, thereby making the welded structure more robust.

[0040] Furthermore, the centering disc 41 has a trapezoidal cross-sectional shape, which can accommodate tanks with different inner diameters and can be flexibly adjusted after the tank is installed, so that the tank and the centering disc 41 remain coaxial, which facilitates the installation of valve seats.

[0041] Furthermore, the welding assembly 8 includes a frame 81 fixedly installed on the top surface of the welding station on the workbench 1. A movable adjusting cylinder 82 is fixed at the top of the frame 81. The output end of the movable adjusting cylinder 82 is set towards the side of the platform 3, and a welding torch 83 is installed at its end through a connecting plate. In use, the output end of the movable adjusting cylinder 82 drives the welding torch 83 to move, so that the welding torch 83 can move close to the joint between the tank body and the valve seat to perform welding operations.

[0042] The working principle of this utility model is as follows: When in use, the valve seat is placed in the feeding tray 21. Vibration of the feeding tray 21 transports the valve seat along the feeding track 22 to one end of the feeding module 23. The picking cylinder 234 on the movable arm 233 in the feeding module 23 pushes the micro chuck 235 downwards. After the valve seat is picked up by the chuck teeth, the pushing cylinder 232 pushes the movable arm 233 to transport the valve seat to the feeding station, which is located directly above the valve opening of the tank installed on the tank fixing assembly 4. The picking mechanism pushes the micro chuck... 235 moves down to place the valve seat at the valve port of the tank. The pressing cylinder pushes the pressure block 72 to press and embed the valve seat into the valve port of the tank for pre-assembly. After the tank and valve seat are pre-assembled, the platform 3 carries the assembled tank and valve seat into the welding station for welding by the welding gun 83. The tank fixing component 4 at the other end of the platform 3 is used to position and fix another tank for pre-assembly. The platform 3 drives the two tank fixing components 4 to switch stations alternately, so as to realize the pre-assembly and welding work simultaneously and improve welding efficiency.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A valve seat welding device, comprising a workbench (1), characterized in that, A feeding assembly (2) is installed on one side of the top surface of the workbench (1) along its length direction. A welding station and a loading station are provided on the other side of the workbench (1) along its width direction. The feeding assembly (2) is connected to the loading station. A rotatable circular platform (3) is installed on the workbench (1) above the welding station and the loading station. A welding assembly (8) is installed on the side of the workbench (1) at the welding station and the welding assembly (8) is located on the outer side of the circumference of the platform (3). Symmetrical tank fixing assemblies (4) are provided at both ends of the radial center line of the platform (3). The two tank fixing assemblies (4) move alternately through the loading station and the welding station under the rotation of the platform (3).

2. The valve seat welding equipment according to claim 1, characterized in that, The feeding assembly (2) includes a feeding tray (21), the feeding tray (21) has a feeding track (22) at its outlet, the other end of the feeding track (22) is connected to the feeding module (23), and the feeding module (23) has a movable arm (233) that can move to the feeding station.

3. The valve seat welding equipment according to claim 2, characterized in that, The feeding module (23) includes a fixed frame (231), a pushing cylinder (232) is installed above the top of the fixed frame (231), the output end of the pushing cylinder (232) drives and connects to the movable arm (233), the end of the feeding track (22) away from the feeding tray (21) is connected to the fixed frame (231), the movable arm (233) is fixedly installed above the end of the feeding track with a longitudinally arranged picking cylinder (234), and a miniature chuck (235) is installed on the output end of the bottom of the picking cylinder (234).

4. The valve seat welding equipment according to claim 3, characterized in that, The workbench (1) is equipped with an outer frame (6) outside the welding station and the loading station. The top of the outer frame (6) is provided with a sheet metal shell (61). The sheet metal shell (61) is provided with a smoke exhaust pipe (63) that connects to the welding station. The outer frame (6) is equipped with cabinet doors (62) that are slidably connected to the workbench (1) on both sides of the workbench (1) in the width direction.

5. The valve seat welding equipment according to claim 4, characterized in that, The outer frame (6) is located directly above the loading station and is equipped with a pressing assembly (7). The pressing assembly (7) includes a pressing cylinder (71) fixedly installed on the top surface of the sheet metal shell (61). The bottom output end of the pressing cylinder (71) passes through the sheet metal shell (61) and drives a pressing block (72) to be connected.

6. The valve seat welding equipment according to claim 1, characterized in that, The bottom of the platform (3) is provided with a first rotary motor (31) and two sets of rotary drive components (5). The first rotary motor (31) is driven to the platform (3), and the two sets of rotary drive components (5) are driven to the two sets of tank fixing components (4).

7. The valve seat welding equipment according to claim 6, characterized in that, The tank fixing assembly (4) includes a centering disk (41) rotatably connected to the platform (3). A support column (42) is provided on the central axis of the centering disk (41). One side of the top of the support column (42) is located above the centering disk (41) and is provided with a positioning groove. One bottom end of the support column (42) passes through the platform (3) and is connected to the rotation drive assembly (5).

8. The valve seat welding equipment according to claim 7, characterized in that, The rotary drive assembly (5) includes a drive pulley (52), a driven pulley (53), and a tension pulley (54) rotatably disposed at the bottom of the platform (3). The bottom of the drive pulley (52) is provided with a second rotary motor (51), the output end of which is driven and connected to the drive pulley (52). The driven pulley (53) is fixedly connected to one end of the bottom of the support column (42). A synchronous belt is tensioned between the drive pulley (52), the driven pulley (53), and the tension pulley (54).

9. A valve seat welding device according to claim 7, characterized in that, The centering disk (41) has a trapezoidal cross-sectional shape.

10. A valve seat welding device according to claim 1, characterized in that, The welding assembly (8) includes a frame (81) fixedly installed on the top surface of the welding station on the workbench (1). A movable adjusting cylinder (82) is fixed at the top of the frame (81). The output end of the movable adjusting cylinder (82) is set towards the side of the platform (3), and a welding gun (83) is installed at its end through a connecting plate.

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