A piston engine gas reservoir welding apparatus

Abstract

The present application relates to the field of welding, especially to a piston engine gas tank welding equipment, comprising a first positioner and a welding robot, the first positioner is provided with a turnover frame, the front and back sides of the turnover frame are provided with second positioners, and the second positioners are provided with clamps; during welding, the first positioner drives the turnover frame to turn over, and one of the clamps is directed to the welding robot; the clamp comprises a clamp bridge plate, the two ends of the clamp bridge plate are arranged on the second positioner, and the clamp bridge plate is provided with a first fixed station and a second fixed station; the first fixed station is provided with a first tank body fixing device and a first accessory fixing device, and the second fixed station is provided with a second tank body fixing device and a second accessory fixing device; the present application has the advantage that two stations are arranged on the clamp to perform welding of different accessories respectively, the tank body can complete welding of all accessories after passing through the two stations, and the welding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of welding, in particular to a piston machine air tank welding equipment. BACKGROUND

[0002] At present, an air compressor is a device for compressing gas and is widely used in various industries. As a necessary component of an air compressor, the demand for air tanks in the market is also increasing. However, the production process of the air tank is still very backward, especially the supports around the periphery of the air tank, which are numerous and each has a different shape and installation position. In the prior art, each support is welded by manual operation. However, such an operation mode cannot guarantee the welding precision of the supports, the positions of each welded support on the tank body are inconsistent, and the welding quality is also unevenly affected by the quality of the workers.

[0003] The existing air tank welding equipment, for example, the utility model patent (publication number: CN209632429U, publication date: 20191115) discloses an air tank welding clamp, which comprises a clamp workbench, a fixed seat assembly and a movable seat assembly for positioning the air tank are arranged on the clamp workbench, the fixed seat assembly and the movable seat assembly are arranged opposite to each other, and a limiting rod for positioning the air tank is arranged on the clamp workbench and between the fixed seat assembly and the movable seat assembly; the fixed seat assembly, the movable seat assembly and the limiting rod jointly position the air tank, and the welding robot can complete the welding at one time, thereby effectively improving the production efficiency and ensuring the product quality. In addition, the air tank welding clamp has the advantages of simple structure, easy operation, low manufacturing cost, easy popularization and use.

[0004] However, the above welding equipment has the following problems:

[0005] In the prior art, when the tank body is clamped, the clamping device causes a large area of the side surface of the tank body to be blocked, which ensures the fixation of the position of the tank body, but makes it difficult for the welding gun to enter the welding position during subsequent welding, which is not conducive to the welding of other accessories on the tank body. In addition, the above clamp fixes the tank body longitudinally, and the accessories on the air tank are mostly located on the upper and lower surfaces of the tank body. After the tank body is fixed longitudinally, the accessories are located on the left and right sides, which is not conducive to the positioning of the installation of the accessories. At the same time, since the number of accessories on the air tank in the present application is large, it is difficult to weld all the accessories in one station. SUMMARY

[0006] To solve the above problems, the purpose of the present application is to provide a piston machine air tank welding equipment,

[0007] For the purpose of the present application, the following technical solutions are adopted:

[0008] A piston compressor gas tank welding equipment includes a frame and a first positioner and a welding robot mounted on the frame. The first positioner is equipped with a tilting frame, and second positioners are provided on both the front and rear sides of the tilting frame. The second positioners are equipped with clamps for fixing the gas tank. During welding, the first positioner drives the tilting frame to tilt, so that one of the clamps faces the welding robot.

[0009] The fixture includes a fixture bridge plate, with both ends of the fixture bridge plate mounted on the second positioner. The fixture bridge plate is provided with a first fixed station and a second fixed station. The first fixed station is used to fix the bottom of the tank towards the fixture bridge plate, and the second fixed station is used to fix the top of the tank towards the fixture bridge plate.

[0010] The first fixed station is equipped with a first tank fixing device and a first accessory fixing device, and the second fixed station is equipped with a second tank fixing device and a second accessory fixing device. The first tank fixing device and the second tank fixing device have the same structure.

[0011] The first tank fixing device includes a tank sidewall positioning block, a tank clamping cylinder, a tank clamping arm, and a tank clamping block. The top surface of the tank sidewall positioning block is an arc shape that conforms to the curvature of the tank sidewall. The tank clamping cylinder is located below the tank sidewall positioning block. The tank clamping cylinder has two output ends, one in front and one in back. A tank clamping arm is provided on each of the two output ends. The two tank clamping arms face each other. The tank sidewall positioning block is located between the two tank clamping arms. The tank clamping arm includes an installation part and a clamping part. The lower end of the installation part is located on the tank clamping cylinder. The upper end of the installation part is located on the clamping part. The clamping part includes at least two clamping bars arranged horizontally. The clamping bars extend longitudinally. The upper and lower ends of the clamping bars are bent inward in the clamping direction, and tank clamping blocks are provided on the upper and lower ends.

[0012] Preferably, the first accessory fixing device includes a foot positioning assembly, a wheel bracket positioning assembly, a switch foot connector positioning assembly, a tee connector positioning assembly, and a nameplate positioning assembly; a foot positioning assembly is provided on one side of the first tank fixing device, and a wheel bracket positioning assembly, a switch foot connector positioning assembly, a tee connector positioning assembly, and a nameplate positioning assembly are provided on the other side of the first tank fixing device. The foot positioning assembly and the wheel bracket positioning assembly are located below the first fixing station, the switch foot connector positioning assembly and the tee connector positioning assembly are respectively located above the front and rear sides of the first fixing station, and the nameplate positioning assembly is located on the right side of the first fixing station.

[0013] The foot positioning assembly is used to support and position the foot pads longitudinally; the wheel bracket positioning assembly is used to support and position the wheel brackets; the switch foot connector positioning assembly is used to press the switch foot connector onto the tank body from above; the tee connector positioning assembly is used to press the tee connector onto the tank body from above; and the nameplate positioning assembly is used to press the nameplate onto the end cap at the head end of the tank body.

[0014] Preferably, the foot support positioning assembly includes a foot support tube positioning seat and a foot support tube positioning post; the foot support tube positioning seat is fixedly installed and located on one side of the first tank body fixing device, and the foot support tube positioning post is provided on the upper surface of the foot support tube positioning seat. The foot support tube positioning post includes a foot support tube support part and a foot support tube positioning part. The width of the foot support tube is greater than the outer diameter of the foot support tube, and the foot support tube support part is used to support the bottom of the foot support tube. The foot support tube positioning part is provided above the foot support tube support part. The foot support tube positioning part is cylindrical and the diameter of the cylinder is adapted to the inner diameter of the foot support tube. The top of the foot support tube positioning part is chamfered.

[0015] Preferably, the foot support positioning assembly includes a foot support positioning seat, a foot support positioning long rod, and a foot support positioning short rod. The lower part of the foot support positioning seat is set on the clamp bridge plate, and the upper end surface of the foot support positioning seat is a support surface for supporting the foot support. Longitudinal foot support positioning long rods are provided on the front and rear sides of the upper end surface of the foot support positioning seat, and the distance between the front and rear foot support positioning long rods is adapted to the length of the foot support. The height of the upper end of the foot support positioning long rod is higher than the upper end surface of the foot support positioning seat. The foot support positioning long rod is used to position the foot support in the length direction. Multiple longitudinally extending foot support positioning short rods are provided on the left and right sides of the upper end surface of the foot support positioning seat, and the distance between the left and right foot support positioning short rods is adapted to the width of the foot support. The height of the upper end of the foot support positioning short rod is higher than the upper end surface of the foot support positioning seat. The foot support positioning short rod is used to position the foot support in the width direction.

[0016] Preferably, the wheel bracket positioning assembly includes a wheel bracket positioning seat, a long wheel bracket positioning rod, and short wheel bracket positioning rods. The lower part of the wheel bracket positioning seat is mounted on the clamping bridge plate, and the upper surface of the wheel bracket positioning seat is a support surface for supporting the wheel bracket. Longitudinal wheel bracket positioning rods are provided on the front and rear sides of the upper surface of the wheel bracket positioning seat, with the upper ends of the long wheel bracket positioning rods being higher than the upper surface of the wheel bracket positioning seat. The distance between the front and rear long wheel bracket positioning rods is adapted to the length of the wheel bracket, and the long wheel bracket positioning rods are used to position the wheel bracket in the length direction. Multiple longitudinally extending short wheel bracket positioning rods are provided on the left and right sides of the upper surface of the wheel bracket positioning seat, with the upper ends of the short wheel bracket positioning rods being higher than the upper surface of the wheel bracket positioning seat. The distance between the left and right short wheel bracket positioning rods is adapted to the width of the wheel bracket, and the short wheel bracket positioning rods are used to position the wheel bracket in the width direction.

[0017] The switch foot connector positioning assembly includes a switch foot connector positioning drive component, a switch foot connector positioning shaft, a switch foot connector pressure arm, and a switch foot connector clamping column. The output end of the switch foot connector positioning drive component is equipped with the switch foot connector positioning shaft, which is positioned laterally. The lower end of the switch foot connector pressure arm is positioned on the switch foot connector positioning shaft. The switch foot connector positioning drive component drives the switch foot connector positioning shaft to rotate, causing the switch foot connector pressure arm to flip in a vertical plane. The upper end of the switch foot connector pressure arm, facing the first fixed position, is equipped with the switch foot connector clamping column. The clamping column includes a clamping part and a positioning part. The width of the clamping part is greater than the outer diameter of the switch foot connector, and the clamping part is used to clamp the top of the switch foot connector. Below the clamping part is the positioning part, which is cylindrical with a diameter matching the inner diameter of the switch foot connector. The bottom of the positioning part has a chamfer.

[0018] The tee fitting positioning assembly includes a tee fitting positioning drive component, a tee fitting positioning shaft, a tee fitting pressure arm, and a tee fitting clamping column. The output end of the tee fitting positioning drive component is equipped with the tee fitting positioning shaft, which is positioned laterally. The lower end of the tee fitting pressure arm is positioned on the tee fitting positioning shaft. The tee fitting positioning drive component drives the tee fitting positioning shaft to rotate, causing the tee fitting pressure arm to flip in a vertical plane. The upper end of the tee fitting pressure arm, facing the first fixed position, is equipped with the tee fitting clamping column. The tee fitting clamping column includes a tee fitting clamping part and a tee fitting positioning part. The width of the tee fitting clamping part is greater than the outer diameter of the tee fitting, and it is used to clamp the fixed top of the tee fitting. Below the tee fitting clamping part is the tee fitting positioning part, which is cylindrical with a diameter matching the inner diameter of the tee fitting. The bottom of the tee fitting positioning part has a chamfer.

[0019] The nameplate positioning assembly includes a nameplate positioning drive component, a nameplate positioning shaft, a nameplate pressure arm, a nameplate pressure plate, and nameplate side limiting blocks. The output end of the nameplate positioning drive component is equipped with the nameplate positioning shaft, which is positioned laterally. The lower end of the nameplate pressure arm is mounted on the nameplate positioning shaft. The nameplate positioning drive component drives the nameplate positioning shaft to rotate, causing the nameplate pressure arm to flip in a vertical plane. The upper end of the nameplate pressure arm, facing the first fixed station, is equipped with a nameplate pressure plate. The side of the nameplate pressure plate facing the first fixed station has an arc shape that matches the curvature of the end cap. The size of the nameplate pressure plate is the same as the size of the nameplate. Multiple nameplate side limiting blocks are arranged around the nameplate pressure plate for limiting the nameplate's position.

[0020] Preferably, the second accessory fixing device includes a handle positioning assembly, a machine plate positioning assembly, a switch foot connector support assembly, a handle positioning assembly, and a drain pipe positioning assembly; the handle positioning assembly is provided on one side of the second tank fixing device, and the machine plate positioning assembly, switch foot connector support assembly, handle positioning assembly, and drain pipe positioning assembly are provided on the other side of the second tank fixing device; the handle positioning assembly is located on the left side of the second fixing station and faces the second fixing station; the machine plate positioning assembly and the switch foot connector support assembly are located at the bottom of the second fixing station and face the second fixing station; the handle positioning assembly is located on the right front side of the second fixing station, and the drain pipe positioning assembly is located on the right rear side above the second fixing station;

[0021] The handle positioning assembly is used to support and position the handle; the plate positioning assembly is used to clamp the front and rear plates; the switch foot pipe support assembly is used to support and position the switch foot pipe; the handle positioning assembly is used to position the head end of the handle, clamp the middle part of the handle, and fix the tail end of the handle; the drain pipe positioning assembly is used to position and clamp the drain pipe onto the tank body.

[0022] Preferably, the handle positioning assembly includes a handle positioning cylinder, a handle bottom clamping plate, a handle side limiting plate, and a handle end limiting clamping plate. The handle positioning cylinder is inclined and faces the second fixed position. The handle bottom clamping plate is provided at the output end of the handle positioning cylinder. Handle side limiting plates are provided on the upper and lower sides of the handle bottom clamping plate. The top of the handle side limiting plates is higher than the handle bottom clamping plate, and the distance between the two handle side limiting plates matches the width of the handle. Handle end limiting clamping plates are provided on the front and rear sides of the handle bottom clamping plate. The two handle end limiting clamping plates open outward, so that the upper opening is larger than the lower opening, and the size of the opening matches the inclination angle of the two sides of the handle. The inner shape of the upper part of the handle end limiting clamping plate is an arc shape adapted to the bending of the handle.

[0023] The circuit board positioning assembly includes a circuit board positioning frame, circuit board positioning posts, circuit board clamping cylinders, and circuit board clamping plates. The circuit board positioning frame is located at the bottom of the second fixed station. Circuit board support platforms are provided on the front and rear sides of the top of the circuit board positioning frame. The circuit board support platforms are used to support the circuit board from below. Circuit board positioning posts are provided on the left and right sides of the circuit board support platforms. The circuit board positioning posts extend longitudinally, and the number of circuit board positioning posts corresponds to the number of through holes on the circuit board. The circuit board positioning posts are used to extend into the through holes of the circuit board to position the circuit board. Circuit board clamping cylinders are provided on the front and rear sides of the circuit board positioning frame. The circuit board clamping cylinders are arranged longitudinally upwards. The output end of the circuit board clamping cylinder is provided with a circuit board clamping plate, which is located above the circuit board support platform. The bottom surface of the circuit board clamping plate is provided with grooves corresponding to the circuit board positioning posts.

[0024] The switch foot connector support assembly includes a switch foot connector support base and a switch foot connector positioning post. The switch foot connector support base is fixedly installed, and the switch foot connector positioning post is provided on the upper surface of the switch foot connector support base. The switch foot connector positioning post includes a switch foot connector support part and a switch foot connector positioning part. The width of the switch foot connector support part is greater than the outer diameter of the switch foot connector. The longitudinally extending switch foot connector positioning part is provided above the switch foot connector support part. The switch foot connector positioning part is cylindrical, and the outer diameter of the cylinder is adapted to the inner diameter of the switch foot connector. The top of the switch foot connector positioning part is chamfered.

[0025] The handle positioning assembly includes a handle head positioning seat, a handle middle clamping cylinder, a handle middle gripper, and a handle tail positioning gripper. The handle head positioning seat is mounted on the fixture bridge plate, and a handle head limiting groove extending in the front-rear direction is provided on the upper surface of the handle head positioning seat. The width of the handle head limiting groove is adapted to the outer diameter of the handle head. The handle middle clamping cylinder is located in front of the second fixed station and is arranged laterally. A pair of handle middle grippers are provided at the output end of the handle middle clamping cylinder. A handle clamping groove is provided on the inner side of the handle middle gripper, and the handle middle gripper is used to clamp the middle of the handle. The handle tail positioning gripper is fixedly mounted, and a handle tail positioning groove is provided on the side of the handle tail positioning gripper facing the second fixed station.

[0026] The drain pipe positioning assembly includes a drain pipe positioning drive component, a drain pipe positioning rotating shaft, a drain pipe positioning pressure arm, and a drain pipe positioning clamping column. The drain pipe positioning drive component is arranged longitudinally, and the drain pipe positioning rotating shaft is located at the output end of the drain pipe positioning drive component. The drain pipe positioning rotating shaft is arranged transversely, and the lower end of the drain pipe positioning pressure arm is located on the drain pipe positioning rotating shaft. The drain pipe positioning pressure arm is located behind the second fixed station. The drain pipe positioning drive component drives the drain pipe positioning rotating shaft to rotate, causing the drain pipe positioning pressure arm to flip in the front-back direction. The drain pipe positioning clamping column is located on the side of the drain pipe positioning pressure arm facing the second fixed station. The drain pipe positioning clamping column includes a drain pipe clamping part and a drain pipe positioning part. The width of the drain pipe clamping part is greater than the outer diameter of the drain pipe, and the drain pipe clamping part is used to clamp the top of the drain pipe. The drain pipe positioning part is located below the drain pipe clamping part. The drain pipe positioning part is cylindrical, and the diameter of the cylinder is adapted to the inner diameter of the drain pipe. The bottom of the drain pipe positioning part is chamfered.

[0027] Preferably, the second accessory fixing device further includes a tank tail end support assembly and a tank head end support assembly; the tank tail end support assembly is located on one side of the handle positioning assembly; the tank head end support assembly is located on one side of the machine plate positioning assembly; the tank tail end support assembly and the tank head end support assembly are located at the bottom of the second fixed station and face the second fixed station; the tank tail end support assembly is used to support and position the tail end of the tank; the tank head end support assembly is used to support and position the head end of the tank;

[0028] Preferably, the tank tail end support assembly includes a tank tail end support cylinder, a tank tail end support plate, and a tank tail end support block; the tank tail end support cylinder is arranged longitudinally and faces the second fixed station, the output end of the tank tail end support cylinder is provided with the tank tail end support plate, the tank tail end support plate is located at the bottom of the second fixed station, the tank tail end support plate includes a tail end connecting part and a tail end support part, the tail end connecting part is arranged laterally and its lower end is connected to the tank tail end support cylinder, the front and rear ends of the tail end connecting part are provided with inclined tail end support parts and the upper ends of the two tail end support parts are opened outward, and the tank tail end support block is provided on the inner side of the tail end support part;

[0029] The tank head end support assembly includes a tank head end support cylinder, a tank head end support plate, and a tank head end support block. The tank head end support cylinder is arranged longitudinally, and the output end of the tank head end support cylinder is provided with the tank head end support plate. The tank head end support plate extends to the bottom of the second fixed station. The tank head end support plate includes a head end connecting part and a head end support part. The head end connecting part extends in the front-back direction, and the front and rear ends of the head end connecting part are provided with inclined head end support parts. The upper end of the head end support part opens outward, and the inner side of the head end support part is provided with a tank head end support block.

[0030] Preferably, there are two first positioners arranged side by side, and each first positioner is equipped with a corresponding welding robot; the first fixed station and the second fixed station are respectively equipped with corresponding welding robots.

[0031] In summary, the advantages of this invention are:

[0032] The clamping section includes at least two clamping bars arranged horizontally, distributing the clamping force across the left and right sides of the tank body. This improves clamping stability and reduces obstruction of the tank body, facilitating subsequent welding of other components. The top surface of the tank sidewall positioning block is curved to match the curvature of the tank sidewall, allowing the sidewall to fully conform to this curved top surface. This provides support and positioning for the tank sidewall, ensuring initial positioning. The upper and lower ends of the clamping bars are bent in the clamping direction, increasing the contact area between the clamping block and the tank sidewall, thus enhancing the clamping effect. The front and rear tank clamping arms are simultaneously driven by a tank clamping cylinder, ensuring that the clamping blocks are pressed firmly against the tank sidewall, preventing movement and maintaining the tank's position. The clamped tank is positioned laterally, placing the components to be welded on both the upper and lower surfaces, facilitating component installation and positioning.

[0033] The fixture has two stations, one on the left and one on the right, each for welding different components. After the tank body passes through the two stations, all components can be welded, improving welding efficiency. Fixtures are also installed on both sides of the tilting frame, allowing the other fixture to load and unload materials while one is welding, further enhancing welding efficiency. Attached Figure Description

[0034] Figure 1 This is a structural schematic diagram of a piston engine gas storage tank welding equipment.

[0035] Figure 2 This is a schematic diagram of a 24L gas storage tank.

[0036] Figure 3 This is a schematic diagram of the fixture in Example 1.

[0037] Figure 4 This is a schematic diagram of the structure of the gas storage tank assembled on the first fixed station in Example 1.

[0038] Figure 5 This is a schematic diagram of the structure of the first fixed station in Example 1.

[0039] Figure 6 This is a schematic diagram of the structure of the first fixed station in Example 1.

[0040] Figure 7 This is a schematic diagram of the structure of the first fixed station in Example 1.

[0041] Figure 8 for Figure 7 A magnified view of a portion of point A in the middle.

[0042] Figure 9 This is a schematic diagram of the structure of the gas storage tank assembled on the second fixed station in Example 1.

[0043] Figure 10 This is a schematic diagram of the structure of the second fixed station in Example 1.

[0044] Figure 11 This is a schematic diagram of the structure of the second fixed station in Example 1.

[0045] Figure 12 This is a schematic diagram of the board positioning assembly in Example 1.

[0046] Figure 13 for Figure 12 A magnified view of a section at point B in the middle.

[0047] Figure 14 This is a schematic diagram of the structure of the second fixed station in Example 1.

[0048] Figure 15 This is a schematic diagram of a 50L gas storage tank.

[0049] Figure 16 This is a schematic diagram of the fixture in Example 2.

[0050] Figure 17 This is a schematic diagram of the structure of the gas storage tank assembled on the first fixed station in Example 2.

[0051] Figure 18 This is a schematic diagram of the structure of the first fixed station in Example 2.

[0052] Figure 19 for Figure 18 A magnified view of a section at point C.

[0053] Figure 20 This is a schematic diagram of the structure of the gas storage tank assembled on the second fixed station in Example 2.

[0054] Figure 21 This is a schematic diagram of the structure of the second fixed station in Example 2. Detailed Implementation

[0055] like Figure 1 As shown, a piston compressor gas tank welding equipment includes a frame and a first positioner 1 and a welding robot 2 mounted on the frame. The first positioner 1 is equipped with a tilting frame 3, and second positioners 4 are mounted on both the front and rear sides of the tilting frame 3. The second positioners 4 are equipped with clamps for fixing the gas tank. During welding, the first positioner 1 drives the tilting frame 3 to tilt, so that one of the clamps faces the welding robot 2. Preferably, there are two first positioners 1 arranged side-by-side, and each first positioner 1 is paired with a corresponding welding robot 2.

[0056] like Figure 3 and Figure 16As shown, the fixture includes a fixture bridge plate 5, with both ends of the fixture bridge plate 5 mounted on the second positioner 4. The fixture bridge plate 5 has a first fixed station and a second fixed station. The first fixed station is used to fix the bottom of the tank towards the fixture bridge plate 5, and the second fixed station is used to fix the top of the tank towards the fixture bridge plate 5. Preferably, the first fixed station and the second fixed station are respectively equipped with corresponding welding robots 2.

[0057] The first fixed station is equipped with a first tank fixing device 6 for positioning and clamping the tank body and a first component fixing device 7 for positioning and clamping various components on the tank body. The second fixed station is equipped with a second tank fixing device 8 for positioning and clamping the tank body and a second component fixing device 9 for positioning and clamping various components on the tank body. The first tank fixing device 6 and the second tank fixing device 8 have the same structure.

[0058] The advantage of this equipment is that it has two stations on the left and right sides of the fixture, and each station is used for welding different parts. After the tank body passes through the two stations, the welding of all parts can be completed, which improves welding efficiency. Fixtures are set on both sides of the tilting frame 3, so that when one fixture is welding, the other fixture can perform loading and unloading operations, further improving welding efficiency.

[0059] Example 1:

[0060] like Figure 2 As shown, the volume of the gas storage tank in this embodiment is 24L. The gas storage tank 10 includes a tank body 101, which is a horizontally arranged cylindrical shape. End caps 102 are provided at both ends of the tank body 101, with a nameplate 103 on the end cap 102 at the head end. A switch foot connector 104 and a three-way connector 105 are provided on the upper surface of the tank body 101 near the head end. A handle 106 is provided on one side of the head end of the tank body 101. A machine plate 107 for mounting a screw compressor is provided on both the front and rear sides of the upper surface of the middle part of the tank body, with a through hole running vertically through the machine plate. A handle 108 is provided on the upper surface of the tank body near the tail end. A foot support connector 109 and a drain connector 110 are provided on the lower surface of the tank body near the head end. A wheel bracket 111 for mounting wheels is provided on the lower surface of the tank body near the tail end.

[0061] like Figure 4 and Figure 6As shown, the first tank fixing device 6 includes a tank sidewall positioning block 61, a tank clamping cylinder 62, a tank clamping arm 63, and a tank clamping block 64. The top surface of the tank sidewall positioning block 61 is an arc shape that conforms to the curvature of the tank sidewall, facilitating the support and positioning of the tank side. The tank clamping cylinder 62 is located below the tank sidewall positioning block 61. The tank clamping cylinder 62 has two output ends, one at the front and one at the rear. A tank clamping arm 63 is provided on each of the two output ends. The two tank clamping arms 63 are arranged facing each other, and the tank sidewall positioning block 61 is located between the two tank clamping arms 63. The tank clamping arm 63 includes a mounting part 631 and a clamping part 632. The lower end of the mounting part 631 is mounted on the tank clamping cylinder 62, and the upper end of the mounting part 631 is mounted on the clamping part 632. The clamping part 632 includes at least two clamping bars 6321 arranged horizontally. The clamping bars 6321 extend longitudinally, and the upper and lower ends of the clamping bars 6321 are bent inward in the clamping direction. Tank clamping blocks 64 are provided on the upper and lower ends.

[0062] The first tank fixing device 6 is used as follows: The gas storage tank is placed horizontally in the first tank fixing device 6, and the side wall of the bottom of the tank is made to fit with the side wall positioning block 61. The tank is initially positioned by the side wall positioning block 61. Then, the axial position of the tank is adjusted so that it corresponds to the position of the part to be welded. Then, the tank clamping cylinder 62 drives the front and rear tank clamping arms 63 to move towards the tank, clamping the front and rear sides of the tank. When clamping, the tank clamping block 64 presses against the side wall of the tank.

[0063] The first tank fixing device 6 solves the problem in the prior art where the clamping device causes a large area of ​​obstruction to the side of the tank during clamping. While this ensures the tank's position is fixed, it makes it difficult for the welding torch to enter the welding position during subsequent welding, which is detrimental to the welding of other accessories on the tank. The advantage of the first tank fixing device 6 is that the clamping part 632 includes at least two clamping bars 6321 arranged horizontally, so that the clamping force is distributed on the left and right sides of the tank, which helps to improve the stability of clamping and reduces the obstruction to the tank, making it easier to weld other accessories later. The top surface of the tank side wall positioning block 61 is an arc shape that adapts to the curvature of the tank side wall, so that the tank side wall can be completely fitted against the arc-shaped top surface, which helps to support and position the tank side wall and ensure the initial positioning effect of the tank. The upper and lower ends of the clamping bars 6321 are bent in the clamping direction, which helps to increase the contact area between the tank clamping block 64 and the tank side wall, thereby improving the clamping effect. The two tank clamping arms 63, one at the front and one at the back, are driven simultaneously by the tank clamping cylinder 62. This ensures that the tank clamping blocks 64 are pressed firmly against the side wall of the tank, preventing the tank from moving and ensuring that its position remains fixed. This also allows the parts to be welded to be positioned on both the upper and lower surfaces, facilitating their installation and positioning.

[0064] likeFigure 4 As shown, the first accessory fixing device 7 includes a foot positioning assembly 71, a wheel bracket positioning assembly 72, a switch foot connector positioning assembly 73, a tee connector positioning assembly 74, and a nameplate positioning assembly 75. The foot positioning assembly 71 is located on one side of the first tank fixing device 6, and the wheel bracket positioning assembly 72, switch foot connector positioning assembly 73, tee connector positioning assembly 74, and nameplate positioning assembly 75 are located on the other side of the first tank fixing device 6. The foot positioning assembly 71 and wheel bracket positioning assembly 72 are located below the first fixing position, the switch foot connector positioning assembly 73 and tee connector positioning assembly 74 are respectively located above the front and rear sides of the first fixing position, and the nameplate positioning assembly 75 is located on the right side of the first fixing position.

[0065] Foot positioning assembly 71 is used to support and position the feet longitudinally. Wheel bracket positioning assembly 72 is used to support and position the wheel brackets. Switch foot connector positioning assembly 73 is used to press the switch foot connector onto the tank body from above. T-connector positioning assembly 74 is used to press the tee connector onto the tank body from above. Nameplate positioning assembly 75 is used to press the nameplate onto the end cap at the head end of the tank body.

[0066] like Figure 2 and Figure 5 As shown, since the gas tank's feet in this embodiment are foot-mounted pipes, the foot-mounted positioning assembly 71 includes a foot-mounted pipe positioning seat 711 and a foot-mounted pipe positioning post 712. The foot-mounted pipe positioning seat 711 is fixedly installed and located on one side of the first tank body fixing device 6. The foot-mounted pipe positioning post 712 is provided on the upper surface of the foot-mounted pipe positioning seat 711. The foot-mounted pipe positioning post 712 includes a foot-mounted pipe support part 7121 and a foot-mounted pipe positioning part 7122. The width of the foot-mounted pipe support part 7121 is greater than the outer diameter of the foot-mounted pipe, and the foot-mounted pipe support part 7121 is used to support the bottom of the foot-mounted pipe. The foot-mounted pipe positioning part 7122 is provided above the foot-mounted pipe support part 7121. The foot-mounted pipe positioning part 7122 is cylindrical, and the diameter of the cylinder is adapted to the inner diameter of the foot-mounted pipe. The top of the foot-mounted pipe positioning part 7122 is chamfered to facilitate the foot-mounted pipe entering the foot-mounted pipe positioning part 7122.

[0067] When positioning the foot support tube, the lower interface of the foot support tube is placed into the foot support tube positioning part 7122, and under the guidance of the foot support tube positioning part 7122, the foot support tube continues to move downward, so that the bottom of the foot support tube is in contact with the upper end surface of the foot support tube support part 7121, thus completing the positioning of the foot support tube.

[0068] like Figure 6As shown, the wheel bracket positioning assembly 72 includes a wheel bracket positioning seat 721, wheel bracket positioning long rods 722, and wheel bracket positioning short rods 723. The lower part of the wheel bracket positioning seat 721 is mounted on the clamping bridge plate 5. The upper surface of the wheel bracket positioning seat 721 serves as a support surface for supporting the wheel bracket. Longitudinally extending wheel bracket positioning long rods 722 are provided on both the front and rear sides of the upper surface of the wheel bracket positioning seat 721, with the upper ends of the long rods 722 exceeding the upper surface of the wheel bracket positioning seat 721. The distance between the two long wheel bracket positioning rods 722 is adapted to the length of the wheel bracket, and the long rods 722 are used to position the wheel bracket along its length. Multiple longitudinally extending wheel bracket positioning short rods 723 are provided on the left and right sides of the upper surface of the wheel bracket positioning seat 721, with the upper ends of the short rods 723 exceeding the upper surface of the wheel bracket positioning seat 721. The distance between the two wheel bracket positioning rods 723 is adapted to the width of the wheel bracket. The wheel bracket positioning rods 723 are used to position the wheel bracket in the width direction.

[0069] When positioning the wheel bracket, the bottom surface of the wheel bracket is placed on the upper surface of the wheel bracket positioning seat 721. At the same time, the front and rear sides of the wheel bracket are limited by the wheel bracket positioning long rod 722, and the left and right sides of the wheel bracket are limited by the wheel bracket positioning short rod 723, so as to ensure the positioning of the wheel bracket.

[0070] like Figure 5 , 7 and Figure 8 The switch foot connector positioning assembly 73 includes a switch foot connector positioning drive component 731, a switch foot connector positioning rotating shaft 732, a switch foot connector pressing arm 733, and a switch foot connector clamping column 734. The switch foot connector positioning drive component 731 has the switch foot connector positioning rotating shaft 732 at its output end, which is positioned laterally. The lower end of the switch foot connector pressing arm 733 is mounted on the switch foot connector positioning rotating shaft 732. The switch foot connector positioning drive component 731 drives the switch foot connector positioning rotating shaft 732 to rotate, causing the switch foot connector pressing arm 733 to flip in a vertical plane. The upper end of the switch foot connector pressing arm 733, facing the first fixed position, has the switch foot connector clamping column 734. The switch foot connector clamping column 734 includes a switch foot connector clamping part 7341 and a switch foot connector positioning part 7342. The width of the switch foot connector clamping part 7341 is greater than the outer diameter of the switch foot connector, and the switch foot connector clamping part 7341 is used to clamp the top of the switch foot connector. A switch foot connector positioning part 7342 is provided below the switch foot connector clamping part 7341. The switch foot connector positioning part 7342 is cylindrical and the diameter of the cylinder is adapted to the inner diameter of the switch foot connector. The bottom of the switch foot connector positioning part 7342 is chamfered.

[0071] When positioning the switch foot connector, the switch foot connector is first initially placed on the switch foot interface of the tank by manual operation. Then, the switch foot connector positioning drive component 731 drives the switch foot connector positioning shaft 732 to rotate, causing the switch foot connector pressure arm 733 to flip in the vertical plane, pressing the switch foot connector clamping column 734 onto the top of the switch foot connector. During clamping, the switch foot connector positioning part 7342 first extends into the interface at the top of the switch foot connector, and then the switch foot connector clamping part 7341 presses against the top surface of the switch foot connector, thus clamping the switch foot connector onto the tank.

[0072] like Figures 6 to 8 As shown, the tee connector positioning assembly 74 includes a tee connector positioning drive component 741, a tee connector positioning rotating shaft 742, a tee connector pressure arm 743, and a tee connector clamping column 744. The tee connector positioning rotating shaft 742 is located at the output end of the tee connector positioning drive component 741 and is positioned laterally. The lower end of the tee connector pressure arm 743 is mounted on the tee connector positioning rotating shaft 742. The tee connector positioning drive component 741 drives the tee connector positioning rotating shaft 742 to rotate, causing the tee connector pressure arm 743 to rotate in a vertical plane. The upper end of the tee connector pressure arm 743, facing the first fixed position, is provided with the tee connector clamping column 744. The tee connector clamping column 744 includes a tee connector clamping part 7441 and a tee connector positioning part 7442. The width of the tee connector clamping part 7441 is greater than the outer diameter of the tee connector, and the tee connector clamping part 7441 is used to clamp the fixed top of the tee connector. Below the T-connector clamping part 7441, a T-connector positioning part 7442 is provided. The T-connector positioning part 7442 is cylindrical and the diameter of the cylinder is adapted to the inner diameter of the T-connector. The bottom of the T-connector positioning part 7442 is chamfered.

[0073] When positioning the tee connector, the tee connector is first initially placed on the tee interface of the tank by manual operation. Then, the tee connector positioning drive component 741 drives the tee connector positioning rotating shaft 742 to rotate, causing the tee connector pressure arm 743 to flip in the vertical plane, pressing the tee connector clamping column 744 onto the top of the tee connector. During clamping, the tee connector positioning part 7442 first extends into the interface at the top of the tee connector, and then the tee connector clamping part 7441 presses against the top surface of the tee connector, thus clamping the tee connector onto the tank.

[0074] like Figure 5As shown, the nameplate positioning assembly 75 includes a nameplate positioning drive component 751, a nameplate positioning rotating shaft 752, a nameplate pressure arm 753, a nameplate pressure plate 754, and a nameplate side limiting block 755. The nameplate positioning rotating shaft 752 is located at the output end of the nameplate positioning drive component 751 and is positioned laterally. The lower end of the nameplate pressure arm 753 is mounted on the nameplate positioning rotating shaft 752. The nameplate positioning drive component 751 drives the nameplate positioning rotating shaft 752 to rotate, causing the nameplate pressure arm 753 to flip in a vertical plane. The nameplate pressure plate 754 is located on the side of the nameplate pressure arm 753 facing the first fixed station. The side of the nameplate pressure plate 754 facing the first fixed station has an arc shape that matches the curvature of the end cap. The nameplate pressure plate 754 is the same size as the nameplate. Multiple nameplate side limit blocks 755 are provided around the nameplate pressure plate 754. The nameplate side limit blocks 755 are used to limit the nameplate around its perimeter.

[0075] When positioning the nameplate, the nameplate is first placed on the end cap at the head of the tank by manual means. Then, the nameplate positioning drive component 751 drives the nameplate positioning shaft 752 to rotate, causing the nameplate pressure arm 753 to flip in the vertical plane and press the nameplate pressure plate 754 onto the nameplate. At the same time, the side limiting block 755 of the nameplate fits against the four sides of the nameplate, positioning the nameplate on the tank.

[0076] The first tank fixing device 6 and the first accessory fixing device 7 work together to solve the problem of low welding efficiency caused by the inability to weld only one accessory at a time when welding accessories from the gas storage tank. Furthermore, the need to reposition the gas storage tank and accessories for welding different accessories, resulting in repeated disassembly and assembly, further reduces welding efficiency. The advantage of the first accessory fixing device 7 is that it completes the installation and positioning of the switch foot connector, tee connector, pad, nameplate, and wheel bracket on the gas storage tank within a single workstation. This allows the gas storage tank and accessories to be positioned only once before welding. Before positioning the gas storage tank, the pad and wheel bracket are positioned using the pad positioning assembly 71 and the wheel bracket positioning assembly 72. Then, the first tank fixing device 6 horizontally positions the tank within the workstation, facilitating the finding of the reference surface and improving the accuracy of accessory positioning and welding quality. Finally, the switch foot connector positioning assembly 73, the tee connector positioning assembly 74, and the nameplate positioning assembly 75 respectively position the switch foot connector, tee connector, and nameplate, achieving accessory positioning and ensuring that multiple accessories can be welded in one workstation, thus improving production efficiency.

[0077] like Figure 9As shown, the second accessory fixing device 9 includes a handle positioning assembly 91, a machine plate positioning assembly 93, a switch foot connector support assembly 95, a handle positioning assembly 96, and a drain pipe positioning assembly 97. The handle positioning assembly 91 is located on one side of the second tank fixing device 8, and the machine plate positioning assembly 93, switch foot connector support assembly 95, handle positioning assembly 96, and drain pipe positioning assembly 97 are located on the other side of the second tank fixing device 8. The handle positioning assembly 91 is located on the left side of the second fixing station and faces the second fixing station. The machine plate positioning assembly 93 and the switch foot connector support assembly 95 are located at the bottom of the second fixing station and face the second fixing station. The handle positioning assembly 96 is located on the right front side of the second fixing station, and the drain pipe positioning assembly 97 is located on the right rear side above the second fixing station.

[0078] Handle positioning assembly 91 is used to support and position the handle. Platen positioning assembly 93 is used to clamp the front and rear platens. Switch foot connector support assembly 95 is used to support and position the switch foot connector. Handle positioning assembly 96 is used to position the head end of the handle, clamp the middle part of the handle, and fix the tail end of the handle. Drain connector positioning assembly 97 is used to position and clamp the drain connector onto the tank body.

[0079] like Figure 10 As shown, the handle positioning assembly 91 includes a handle positioning cylinder 911, a handle bottom clamping plate 912, a handle side limiting plate 913, and a handle end limiting clamping plate 914. The handle positioning cylinder 911 is inclined and faces the second fixed position. The handle bottom clamping plate 912 is located at the output end of the handle positioning cylinder 911. The handle side limiting plates 913 are located on the upper and lower sides of the handle bottom clamping plate 912. The top of the handle side limiting plates 913 is higher than the handle bottom clamping plate 912, and the distance between the two handle side limiting plates 913 matches the width of the handle. The handle end limiting clamping plates 914 are located on the front and rear sides of the handle bottom clamping plate 912. The two handle end limiting clamping plates 914 open outward, so that the upper opening is larger than the lower opening, and the size of the opening matches the inclination angle of the two sides of the handle. The inner shape of the upper end of the handle end limiting clamping plate 914 is an arc shape that adapts to the bending of the handle.

[0080] When positioning the handle, the lower part of the handle is placed on the upper section of the bottom clamping plate 912 of the handle. At the same time, the left and right sides of the handle are limited by the side limiting plate 913 of the handle, and the front and rear ends of the handle are limited by the end limiting clamping plate 914 of the handle. The inner side of the end limiting clamping plate 914 of the handle fits against the bend at the upper end of the handle, further ensuring the positioning effect of the handle.

[0081] like Figures 11 to 13As shown, the board positioning assembly 93 includes a board positioning frame 931, board positioning posts 932, board clamping cylinder 933, and board clamping plate 934. The board positioning frame 931 is located at the bottom of the second fixed station. Board support platforms 9311 are provided on the front and rear sides of the top of the board positioning frame 931, which are used to support the board from below. Board positioning posts 932 are provided on the left and right sides of the board support platforms 9311. The board positioning posts 932 extend longitudinally, and the number of board positioning posts 932 corresponds to the number of through holes on the board. The board positioning posts 932 are used to extend into the through holes of the board to position the board. Machine plate clamping cylinders 933 are provided on both the front and rear sides of the machine plate positioning frame 931. The machine plate clamping cylinders 933 are arranged longitudinally upward. A machine plate clamping plate 934 is provided at the output end of the machine plate clamping cylinder 933. The machine plate clamping plate 934 is located above the machine plate support platform 9311. The bottom surface of the machine plate support platform 9311 is provided with a groove corresponding to the machine plate positioning post 932.

[0082] When the machine plate is positioned, the operator places the machine plate on the machine plate support platform 9311 and aligns the through hole of the machine plate with the machine plate positioning post 932. Then, the machine plate clamping cylinder 933 drives the machine plate clamping plate 934 to move downward, so that the machine plate clamping plate 934 presses on the upper end surface of the machine plate. At the same time, the groove on the machine plate clamping plate 934 aligns with the machine plate positioning post 932, clamping the machine plate onto the machine plate support platform 9311.

[0083] like Figure 11 As shown, the switch foot connector support assembly 95 includes a switch foot connector support base 951 and a switch foot connector positioning post 952. The switch foot connector support base 951 is fixedly installed, and the switch foot connector positioning post 952 is provided on the upper end surface of the switch foot connector support base 951. The switch foot connector positioning post 952 includes a switch foot connector support portion 9521 and a switch foot connector positioning portion 9522. The width of the switch foot connector support portion 9521 is greater than the outer diameter of the switch foot connector. A longitudinally extending switch foot connector positioning portion 9522 is provided above the switch foot connector support portion 9521. The switch foot connector positioning portion 9522 is cylindrical, and the outer diameter of the cylinder is adapted to the inner diameter of the switch foot connector. The top of the switch foot connector positioning portion 9522 is chamfered.

[0084] When the switch foot connector is supported, the interface at the bottom of the switch foot connector engages with the switch foot connector positioning part 9522 of the switch foot connector positioning post 952, and moves downward along the switch foot connector positioning part 9522 until the bottom surface of the switch foot connector contacts the switch foot connector support part 9521, thus completing the positioning and support of the switch foot connector.

[0085] like Figure 11As shown, the handle positioning assembly 96 includes a handle head positioning seat 961, a handle middle clamping cylinder 962, a handle middle gripper 963, and a handle tail positioning gripper 964. The handle head positioning seat 961 is mounted on the fixture bridge plate 5. A handle head limiting groove 9611 extending in the front-rear direction is provided on the upper surface of the handle head positioning seat 961. The width of the handle head limiting groove 9611 is adapted to the outer diameter of the handle head. The handle middle clamping cylinder 962 is located on the front side of the second fixed station. The handle middle clamping cylinder 962 is arranged laterally. A pair of handle middle grippers 963 are provided at the output end of the handle middle clamping cylinder 962. A handle clamping groove is provided on the inner side of the handle middle gripper 963, which is used to clamp the middle part of the handle. The handle tail end positioning claw 964 is fixedly set, and the handle tail end positioning claw 964 is provided with a handle tail end positioning groove 9641 on the side facing the second fixed station.

[0086] When positioning the handle, first place the head end of the handle into the handle head end limiting groove 9611 of the handle head end positioning seat 961, and then place the tail end of the handle into the handle tail end positioning groove 9641 of the handle tail end positioning claw 964. The middle clamping cylinder 962 drives the middle clamping claw 963 of the handle to move, and the middle clamping claw 963 clamps the middle of the handle, thus completing the positioning and clamping of the handle.

[0087] like Figure 11 As shown, the drain pipe positioning assembly 97 includes a drain pipe positioning drive component 971, a drain pipe positioning rotating shaft 972, a drain pipe positioning pressure arm 973, and a drain pipe positioning clamping column 974. The drain pipe positioning drive component 971 is arranged longitudinally, and the drain pipe positioning rotating shaft 972 is provided at the output end of the drain pipe positioning drive component 971. The drain pipe positioning rotating shaft 972 is arranged transversely, and the lower end of the drain pipe positioning pressure arm 973 is provided on the drain pipe positioning rotating shaft 972. The drain pipe positioning pressure arm 973 is located behind the second fixed position. The drain pipe positioning drive component 971 drives the drain pipe positioning rotating shaft 972 to rotate, causing the drain pipe positioning pressure arm 973 to flip in the front-back direction. A drain pipe positioning clamping post 974 is provided on the upper end of the drain pipe positioning clamping arm 973 facing the second fixed position. The drain pipe positioning clamping post 974 includes a drain pipe clamping part 9741 and a drain pipe positioning part 9742. The width of the drain pipe clamping part 9741 is greater than the outer diameter of the drain pipe, and the drain pipe clamping part 9741 is used to clamp the top of the drain pipe. The drain pipe positioning part 9742 is provided below the drain pipe clamping part 9741. The drain pipe positioning part 9742 is cylindrical, and the diameter of the cylinder is adapted to the inner diameter of the drain pipe. The bottom of the drain pipe positioning part 9742 is chamfered.

[0088] When positioning the drain pipe, the drain pipe is manually placed on the drain port of the tank. Then, the drain pipe positioning drive component 971 drives the drain pipe positioning shaft 972 to rotate, causing the drain pipe positioning pressure arm 973 to flip in the front and back direction. This extends the drain pipe positioning part 9742 of the drain pipe positioning clamping column 974 into the top of the drain pipe until the drain pipe clamping part 9741 is pressed against the upper end face of the drain pipe.

[0089] like Figure 9 As shown, the second accessory fixing device 9 also includes a tank tail end support assembly 92 and a tank head end support assembly 94. The tank tail end support assembly 92 is located on one side of the handle positioning assembly 91. The tank head end support assembly 94 is located on one side of the machine plate positioning assembly 93. Both the tank tail end support assembly 92 and the tank head end support assembly 94 are located at the bottom of the second fixed station and face the second fixed station. The tank tail end support assembly 92 is used to support and position the tail end of the tank. The tank head end support assembly 94 is used to support and position the head end of the tank.

[0090] like Figure 10 As shown, the tank tail end support assembly 92 includes a tank tail end support cylinder 921, a tank tail end support plate 922, and a tank tail end support block 923. The tank tail end support cylinder 921 is arranged longitudinally and faces the second fixed station. The tank tail end support plate 922 is provided at the output end of the tank tail end support cylinder 921. The tank tail end support plate 922 is located at the bottom of the second fixed station. The tank tail end support plate 922 includes a tail end connecting part 9221 and a tail end support part 9222. The tail end connecting part 9221 is arranged laterally and its lower end is connected to the tank tail end support cylinder 921. Inclined tail end support parts 9222 are provided at both the front and rear ends of the tail end connecting part 9221, and the upper ends of the two tail end support parts 9222 open outward. The tank tail end support block 923 is provided on the inner side of the tail end support part 9222.

[0091] When the tank tail end support assembly 92 is working, the tank tail end support cylinder 921 drives the tank tail end support plate 922 to move upward, so that the front and rear tail end support parts 9222 move closer to the bottom of the tank until the tank tail end support block 923 fits against the bottom of the tank, thus supporting and positioning the bottom of the tank tail end.

[0092] like Figure 14As shown, the tank head end support assembly 94 includes a tank head end support cylinder 941, a tank head end support plate 942, and a tank head end support block 943. The tank head end support cylinder 941 is arranged longitudinally, and the tank head end support plate 942 is provided at the output end of the tank head end support cylinder 941. The tank head end support plate 942 extends to the bottom of the second fixed station. The tank head end support plate 942 includes a head end connecting part 9421 and a head end support part 9422. The head end connecting part 9421 extends in the front-rear direction, and inclined head end support parts 9422 are provided at both the front and rear ends of the head end connecting part 9421. The upper end of the head end support part 9422 opens outward, and the tank head end support block 943 is provided on the inner side of the head end support part 9422.

[0093] When the tank head end support assembly 94 is working, the tank head end support cylinder 941 drives the tank head end support plate 942 to move upward, so that the front and rear head end support parts 9422 move closer to the bottom of the tank until the tank head end support block 943 fits against the bottom of the tank, thus supporting and positioning the bottom of the tank head end.

[0094] The second tank fixing device 8 and the second accessory fixing device 9 work together to solve the problem of low welding efficiency caused by the inability to weld only one accessory at a time when welding accessories from the gas tank. Furthermore, the need to reposition the gas tank and accessories and repeatedly disassemble and reassemble them when welding different accessories further reduces welding efficiency. The advantage of the second tank fixing device 8 and the second accessory fixing device 9 is that the installation and positioning of the handle, machine plate, pull handle, and drain pipe on the gas tank can be completed in one workstation, allowing the gas tank and accessories to be positioned only once before welding. Before positioning the gas tank, the switch foot pipe is positioned using the switch foot pipe support assembly 95. Then, the second tank fixing device 8 horizontally positions the tank in the workstation, facilitating the finding of the reference surface and improving the accuracy of accessory positioning and welding quality. Finally, the handle positioning assembly 91, machine plate positioning assembly 93, pull handle positioning assembly 96, and drain pipe positioning assembly 97 respectively position the handle, machine plate, pull handle, and drain pipe, achieving accessory positioning and ensuring that multiple accessories can be welded in one workstation, thus improving production efficiency.

[0095] Example 2:

[0096] like Figure 15 As shown, the volume of the gas storage tank in this embodiment is 50L. The difference in structure between it and the 24L gas storage tank is that the foot in this embodiment is a foot support, rather than a foot pipe.

[0097] like Figures 16 to 21 The fixture structure shown is adapted to a 50L gas storage tank.

[0098] like Figures 17 to 19As shown, the foot support positioning assembly 71 of this embodiment includes a foot support positioning seat 713, a foot support positioning long rod 714, and a foot support positioning short rod 715. The lower part of the foot support positioning seat 713 is mounted on the clamp bridge plate 5. The upper surface of the foot support positioning seat 713 serves as a support surface for supporting the foot support. Longitudinal foot support positioning long rods 714 are provided on the front and rear sides of the upper surface of the foot support positioning seat 713, with the distance between the two long rods 714 corresponding to the length of the foot support. The upper end of the long rod 714 is higher than the upper surface of the foot support positioning seat 713. The long rods 714 are used to position the foot support along its length. Multiple longitudinally extending short rods 715 are provided on the left and right sides of the upper surface of the foot support positioning seat 713, with the distance between the two short rods 715 corresponding to the width of the foot support. The upper end of the foot support positioning rod 715 is higher than the upper surface of the foot support positioning seat 713. The foot support positioning rod 715 is used to position the foot support in the width direction.

[0099] When positioning the foot support, place the foot support on the upper surface of the foot support positioning seat 713. At the same time, the front and rear ends of the foot support are positioned by the foot support positioning long rod 714, and the left and right sides of the foot support are positioned by the foot support positioning short rod 715.

Claims

1. A welding equipment for a piston compressor gas storage tank, characterized in that, The system includes a frame and a first positioner (1) and a welding robot (2) mounted on the frame. The first positioner (1) is equipped with a flipping frame (3), and a second positioner (4) is provided on both the front and rear sides of the flipping frame (3). The second positioner (4) is equipped with a clamp for fixing the gas storage tank. During welding, the first positioner (1) drives the flipping frame (3) to flip, so that one of the clamps faces the welding robot (2). The fixture includes a fixture bridge plate (5), with both ends of the fixture bridge plate (5) set on the second positioner (4). The fixture bridge plate (5) is provided with a first fixed station and a second fixed station. The first fixed station is used to fix the bottom of the tank towards the fixture bridge plate (5), and the second fixed station is used to fix the top of the tank towards the fixture bridge plate (5). The first fixed station is equipped with a first tank fixing device (6) and a first accessory fixing device (7), and the second fixed station is equipped with a second tank fixing device (8) and a second accessory fixing device (9). The first tank fixing device (6) and the second tank fixing device (8) have the same structure. The first tank fixing device (6) includes a tank side wall positioning block (61), a tank clamping cylinder (62), a tank clamping arm (63), and a tank clamping block (64); the top surface of the tank side wall positioning block (61) is an arc shape that conforms to the curvature of the tank side wall; a tank clamping cylinder (62) is provided below the tank side wall positioning block (61), and the tank clamping cylinder (62) is provided with two output ends, and a tank clamping arm (63) is provided on each of the two output ends. The two tank clamping arms (63) are arranged facing each other, and the tank side wall positioning block (61) The clamping arm (63) is located between two tank clamping arms (63); the tank clamping arm (63) includes a mounting part (631) and a clamping part (632). The lower end of the mounting part (631) is provided on the tank clamping cylinder (62), and the upper end of the mounting part (631) is provided with the clamping part (632). The clamping part (632) includes at least two clamping bars (6321) arranged horizontally. The clamping bars (6321) extend longitudinally, and the upper and lower ends of the clamping bars (6321) are bent inward in the clamping direction, and tank clamping blocks (64) are provided on the upper and lower ends. The first accessory fixing device (7) includes a foot positioning component (71), a wheel bracket positioning component (72), a switch foot pipe positioning component (73), a tee pipe positioning component (74), and a nameplate positioning component (75); a foot positioning component (71) is provided on one side of the first tank fixing device (6), and a wheel bracket positioning component (72), a switch foot pipe positioning component (73), a tee pipe positioning component (74), and a nameplate positioning component (75) are provided on the other side of the first tank fixing device (6). The foot positioning component (71) and the wheel bracket positioning component (72) are located below the first fixed station, the switch foot pipe positioning component (73) and the tee pipe positioning component (74) are located above the front and rear sides of the first fixed station, and the nameplate positioning component (75) is located on the right side of the first fixed station. The foot positioning assembly (71) is used to support and position the foot in the longitudinal direction; the wheel bracket positioning assembly (72) is used to support and position the wheel bracket; The switch foot connector positioning assembly (73) is used to press the switch foot connector onto the tank body from above; the tee connector positioning assembly (74) is used to press the tee connector onto the tank body from above; the nameplate positioning assembly (75) is used to press the nameplate onto the end cap at the head end of the tank body; The second accessory fixing device (9) includes a handle positioning assembly (91), a machine plate positioning assembly (93), a switch foot pipe support assembly (95), a handle positioning assembly (96), and a drain pipe positioning assembly (97); the handle positioning assembly (91) is provided on one side of the second tank fixing device (8), and the machine plate positioning assembly (93), the switch foot pipe support assembly (95), the handle positioning assembly (96), and the drain pipe positioning assembly (97) are provided on the other side of the second tank fixing device (8); the handle positioning assembly (91) is located on the left side of the second fixing station and faces the second fixing station; the machine plate positioning assembly (93) and the switch foot pipe support assembly (95) are located at the bottom of the second fixing station and face the second fixing station; the handle positioning assembly (96) is located on the right front side of the second fixing station, and the drain pipe positioning assembly (97) is located on the right rear side above the second fixing station; the handle positioning assembly (91) is used to support and position the handle; the machine plate positioning assembly (93) is used to clamp the machine plates on the front and rear sides; The switch foot connector support assembly (95) is used to support and position the switch foot connector; the handle positioning assembly (96) is used to position the head end of the handle, clamp the middle part of the handle, and fix the tail end of the handle; the drain connector positioning assembly (97) is used to position and clamp the drain connector onto the tank body; The second accessory fixing device (9) also includes a tank tail end support assembly (92) and a tank head end support assembly (94); the tank tail end support assembly (92) is located on one side of the handle positioning assembly (91); the tank head end support assembly (94) is located on one side of the machine plate positioning assembly (93); the tank tail end support assembly (92) and the tank head end support assembly (94) are located at the bottom of the second fixed station and face the second fixed station; the tank tail end support assembly (92) is used to support and position the tail end of the tank; the tank head end support assembly (94) is used to support and position the head end of the tank; the tank tail end support assembly (92) includes a tank tail end support cylinder (921), a tank tail end support plate (922), and a tank tail end support block (923). 23) The tank tail end support cylinder (921) is arranged longitudinally and faces the second fixed station. The output end of the tank tail end support cylinder (921) is provided with a tank tail end support plate (922). The tank tail end support plate (922) is located at the bottom of the second fixed station. The tank tail end support plate (922) includes a tail end connecting part (9221) and a tail end support part (9222). The tail end connecting part (9221) is arranged laterally and its lower end is connected to the tank tail end support cylinder (921). Inclined tail end support parts (9222) are provided at the front and rear ends of the tail end connecting part (9221) and the upper ends of the two tail end support parts (9222) open outward. The tank tail end support block (923) is provided on the inner side of the tail end support part (9222). The tank head end support assembly (94) includes a tank head end support cylinder (941), a tank head end support plate (942), and a tank head end support block (943). The tank head end support cylinder (941) is arranged longitudinally, and the output end of the tank head end support cylinder (941) is provided with the tank head end support plate (942). The tank head end support plate (942) extends to the bottom of the second fixed station. The tank head end support plate (942) includes a head end connecting part (9421) and a head end support part (9422). The head end connecting part (9421) extends in the front-back direction. Inclined head end support parts (9422) are provided at both ends of the head end connecting part (9421). The upper end of the head end support part (9422) opens outward, and the tank head end support block (943) is provided on the inner side of the head end support part (9422).

2. The piston compressor gas tank welding equipment according to claim 1, characterized in that, The foot positioning assembly (71) includes a foot connector positioning seat (711) and a foot connector positioning post (712); the foot connector positioning seat (711) is fixedly installed and located on one side of the first tank body fixing device (6), and the foot connector positioning post (712) is provided on the upper surface of the foot connector positioning seat (711). The foot connector positioning post (712) includes a foot connector support part (7121) and a foot connector positioning part (7122). The width of the foot connector support part (7121) is greater than the outer diameter of the foot connector, and the foot connector support part (7121) is used to support the bottom of the foot connector; the foot connector positioning part (7122) is provided above the foot connector support part (7121). The foot connector positioning part (7122) is cylindrical and the diameter of the cylinder is adapted to the inner diameter of the foot connector. The top of the foot support tube positioning part (7122) is chamfered.

3. The piston machine gas storage tank welding equipment according to claim 1, characterized in that, The foot support positioning assembly (71) includes a foot support positioning seat (713), a foot support positioning long rod (714), and a foot support positioning short rod (715); the lower part of the foot support positioning seat (713) is set on the clamp bridge plate (5), the upper end surface of the foot support positioning seat (713) is a support surface for supporting the foot support, and longitudinally extending foot support positioning long rods (714) are provided on the front and rear sides of the upper end surface of the foot support positioning seat (713), the distance between the front and rear foot support positioning long rods (714) is adapted to the length of the foot support; the foot support positioning long rods (714) The height of the upper end is higher than the upper surface of the foot support positioning seat (713); the foot support positioning long rod (714) is used to position the foot support in the length direction; multiple longitudinally extending foot support positioning short rods (715) are set on the left and right sides of the upper surface of the foot support positioning seat (713), and the distance between the two foot support positioning short rods (715) is adapted to the width of the foot support; the height of the upper end of the foot support positioning short rod (715) is higher than the upper surface of the foot support positioning seat (713); the foot support positioning short rod (715) is used to position the width direction of the foot support.

4. The piston machine gas storage tank welding equipment according to claim 1, characterized in that, The wheel bracket positioning assembly (72) includes a wheel bracket positioning seat (721), a wheel bracket positioning long rod (722), and a wheel bracket positioning short rod (723). The lower part of the wheel bracket positioning seat (721) is set on the clamp bridge plate (5), and the upper end surface of the wheel bracket positioning seat (721) is a support surface for supporting the wheel bracket. Longitudinal wheel bracket positioning long rods (722) are set on the front and rear sides of the upper end surface of the wheel bracket positioning seat (721), and the upper end of the wheel bracket positioning long rod (722) is higher than the upper end surface of the wheel bracket positioning seat (721). The front and rear wheel bracket positioning... The distance between the long positioning rods (722) is adapted to the length of the wheel bracket. The long positioning rods (722) of the wheel bracket are used to position the wheel bracket in the length direction. Multiple longitudinally extending short positioning rods (723) of the wheel bracket are provided on the left and right sides of the upper end face of the wheel bracket positioning seat (721). The upper end of the short positioning rods (723) of the wheel bracket is higher than the upper end face of the wheel bracket positioning seat (721). The distance between the two short positioning rods (723) of the left and right wheel brackets is adapted to the width of the wheel bracket. The short positioning rods (723) of the wheel brackets are used to position the wheel bracket in the width direction. The switch foot tube positioning assembly (73) includes a switch foot tube positioning drive component (731), a switch foot tube positioning shaft (732), a switch foot tube pressure arm (733), and a switch foot tube clamping column (734). The output end of the switch foot connector positioning drive component (731) is provided with a switch foot connector positioning shaft (732). The switch foot connector positioning shaft (732) is arranged in the horizontal direction. The lower end of the switch foot connector pressure arm (733) is arranged on the switch foot connector positioning shaft (732). The switch foot connector positioning drive component (731) drives the switch foot connector positioning shaft (732) to rotate, so that the switch foot connector pressure arm (733) flips in the vertical plane. A switch foot connector clamping column (734) is provided on the side of the upper end of the switch foot connector clamping arm (733) facing the first fixed station. The switch foot connector clamping column (734) includes a switch foot connector clamping part (7341) and a switch foot connector positioning part (7342). The width of the switch foot connector clamping part (7341) is greater than the outer diameter of the switch foot connector. The switch foot connector clamping part (7341) is used to clamp the top of the switch foot connector. A switch foot connector positioning part (7342) is provided below the switch foot connector clamping part (7341). The switch foot connector positioning part (7342) is cylindrical and the diameter of the cylinder is adapted to the inner diameter of the switch foot connector. A chamfer is provided at the bottom of the switch foot connector positioning part (7342). The tee fitting positioning assembly (74) includes a tee fitting positioning drive component (741), a tee fitting positioning rotating shaft (742), a tee fitting pressure arm (743), and a tee fitting clamping column (744). The output end of the tee fitting positioning drive component (741) is provided with the tee fitting positioning rotating shaft (742), which is arranged laterally. The lower end of the tee fitting pressure arm (743) is provided on the tee fitting positioning rotating shaft (742). The tee fitting positioning drive component (741) drives the tee fitting positioning rotating shaft (742) to rotate, causing the tee fitting pressure arm (743) to flip in the vertical plane. (743) has a T-connector clamping column (744) on the side facing the first fixed station. The T-connector clamping column (744) includes a T-connector clamping part (7441) and a T-connector positioning part (7442). The width of the T-connector clamping part (7441) is greater than the outer diameter of the T-connector. The T-connector clamping part (7441) is used to clamp the fixed top of the T-connector. The T-connector positioning part (7442) is provided below the T-connector clamping part (7441). The T-connector positioning part (7442) is cylindrical and the diameter of the cylinder is adapted to the inner diameter of the T-connector. The bottom of the T-connector positioning part (7442) is chamfered. The nameplate positioning assembly (75) includes a nameplate positioning drive component (751), a nameplate positioning shaft (752), a nameplate pressure arm (753), a nameplate pressure plate (754), and a nameplate side limiting block (755). The nameplate positioning drive component (751) has a nameplate positioning shaft (752) at its output end, which is arranged laterally. The lower end of the nameplate pressure arm (753) is mounted on the nameplate positioning shaft (752). The nameplate positioning drive component (751) drives the nameplate positioning shaft (752) to position the nameplate. The shaft (752) rotates, causing the nameplate pressure arm (753) to flip in the vertical plane; a nameplate pressure plate (754) is provided on the side of the upper end of the nameplate pressure arm (753) facing the first fixed station, and the side of the nameplate pressure plate (754) facing the first fixed station is an arc shape that matches the curvature of the end cover; the size of the nameplate pressure plate (754) is the same as the size of the nameplate, and multiple nameplate side limit blocks (755) are provided around the nameplate pressure plate (754), which are used to limit the nameplate around its perimeter.

5. The piston compressor gas tank welding equipment according to claim 1, characterized in that, The handle positioning assembly (91) includes a handle positioning cylinder (911), a handle bottom clamping plate (912), a handle side limiting plate (913), and a handle end limiting clamping plate (914). The handle positioning cylinder (911) is inclined and faces the second fixed position. The handle bottom clamping plate (912) is provided at the output end of the handle positioning cylinder (911). The handle side limiting plates (913) are provided on the upper and lower sides of the handle bottom clamping plate (912). The top of the handle side limiting plate (913) is... The distance between the two handle side limiting plates (913) is higher than the bottom pressing plate (912) of the handle, and matches the width of the handle; handle end limiting pressing plates (914) are provided on the front and rear sides of the bottom pressing plate (912) of the handle, and the two handle end limiting pressing plates (914) open outward, so that the upper opening is larger than the lower opening, and the size of the opening matches the inclination angle of the two sides of the handle; the inner shape of the upper end of the handle end limiting pressing plate (914) is an arc shape that adapts to the bending of the handle; The board positioning assembly (93) includes a board positioning frame (931), board positioning posts (932), board clamping cylinder (933), and board clamping plate (934); the board positioning frame (931) is located at the bottom of the second fixed station, and board support platforms (9311) are provided on the front and rear sides of the top of the board positioning frame (931), which are used to support the board from below; board positioning posts (932) are provided on the left and right sides of the board support platform (9311), and the board positioning posts (932) extend longitudinally. The number of 932) corresponds to the number of through holes on the machine plate. The machine plate positioning posts (932) are used to extend into the through holes of the machine plate to position the machine plate. The front and rear sides of the machine plate positioning frame (931) are equipped with machine plate clamping cylinders (933). The machine plate clamping cylinders (933) are arranged longitudinally upward. The output end of the machine plate clamping cylinders (933) is equipped with a machine plate clamping plate (934). The machine plate clamping plate (934) is located above the machine plate support platform (9311). The bottom surface of the machine plate clamping plate (934) is provided with a groove corresponding to the machine plate positioning posts (932). The switch foot connector support assembly (95) includes a switch foot connector support base (951) and a switch foot connector positioning post (952). The switch foot connector support base (951) is fixedly installed. The switch foot connector positioning post (952) is provided on the upper surface of the switch foot connector support base (951). The switch foot connector positioning post (952) includes a switch foot connector support part (9521) and a switch foot connector positioning part (9522). The width of the switch foot connector support part (9521) is greater than the outer diameter of the switch foot connector. The switch foot connector positioning part (9522) is provided on the upper part of the switch foot connector support part (9521). The switch foot connector positioning part (9522) is cylindrical and the outer diameter of the cylinder is adapted to the inner diameter of the switch foot connector. The top of the switch foot connector positioning part (9522) is chamfered; The handle positioning assembly (96) includes a handle head end positioning seat (961), a handle middle clamping cylinder (962), a handle middle gripper (963), and a handle tail end positioning gripper (964); the handle head end positioning seat (961) is mounted on the clamping bridge plate (5), and a handle head end limiting groove (9611) extending in the front-rear direction is provided on the upper end surface of the handle head end positioning seat (961), the width of the handle head end limiting groove (9611) being adapted to the outer diameter of the handle head end; the handle middle clamping cylinder (962) includes a handle head end positioning seat (963), a handle middle clamping cylinder (964), a handle tail end positioning cylinder (965), a handle head end positioning seat (966), a handle middle clamping cylinder (966), a handle tail end positioning cylinder (966), a handle head end positioning seat (961), a handle middle clamping cylinder (962), a handle tail end positioning cylinder (963), a handle head end positioning seat (964), a handle tail end positioning cylinder (965 ... tail end positioning cylinder (964), a handle head end positioning seat (961), a handle middle clamping cylinder (962), a handle tail end positioning cylinder (963), a handle tail end positioning cylinder (964), a handle head end positioning seat (961), a handle middle clamping cylinder (962), a handle tail end positioning cylinder (963), a handle tail end positioning cylinder (964), a handle tail end positioning cylinder (965), a handle tail end positioning cylinder (966), a handle tail end positioning cylinder (962), a handle tail end positioning cylinder (963), a handle tail end 62) The middle clamping cylinder (962) of the handle is set in the front of the second fixed station. The output end of the middle clamping cylinder (962) of the handle is provided with a pair of middle clamping claws (963). The inner side of the middle clamping claws (963) of the handle is provided with a handle clamping groove. The middle clamping claws (963) of the handle are used to clamp the middle part of the handle. The tail end positioning claw (964) of the handle is fixedly set. The tail end positioning claw (964) of the handle is provided with a tail end positioning groove (9641) on the side facing the second fixed station. The drain pipe positioning assembly (97) includes a drain pipe positioning drive component (971), a drain pipe positioning rotating shaft (972), a drain pipe positioning pressure arm (973), and a drain pipe positioning clamping column (974). The drain pipe positioning drive component (971) is arranged longitudinally, and the drain pipe positioning rotating shaft (972) is provided at the output end of the drain pipe positioning drive component (971). The drain pipe positioning rotating shaft (972) is arranged transversely, and the lower end of the drain pipe positioning pressure arm (973) is provided on the drain pipe positioning rotating shaft (972). The drain pipe positioning pressure arm (973) is located behind the second fixed position. The drain pipe positioning drive component (971) drives the drain pipe positioning rotating shaft (972) to press the drain pipe positioning pressure arm (973). 72) Rotate to make the drain pipe positioning arm (973) flip in the front and back direction; a drain pipe positioning clamping column (974) is provided on the side of the upper end of the drain pipe positioning arm (973) facing the second fixed position. The drain pipe positioning clamping column (974) includes a drain pipe clamping part (9741) and a drain pipe positioning part (9742). The width of the drain pipe clamping part (9741) is greater than the outer diameter of the drain pipe. The drain pipe clamping part (9741) is used to clamp the top of the drain pipe. A drain pipe positioning part (9742) is provided below the drain pipe clamping part (9741). The drain pipe positioning part (9742) is cylindrical and the diameter of the cylinder is adapted to the inner diameter of the drain pipe. The bottom of the drain pipe positioning part (9742) is chamfered.

6. The piston machine gas storage tank welding equipment according to claim 1, characterized in that, There are two first positioners (1) arranged side by side, and each first positioner (1) is equipped with a welding robot (2); the first fixed station and the second fixed station are respectively equipped with corresponding welding robots (2).

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