A piston engine gas tank accessory front welding fixture and equipment

Abstract

The present application relates to the field of welding, especially to a piston engine air tank accessory front welding clamp and equipment, including first tank body fixing device and first accessory fixing device; the first accessory fixing device includes foot pad positioning assembly, wheel support positioning assembly, switch foot connecting pipe positioning assembly, tee connecting pipe positioning assembly and nameplate positioning assembly; one side of the first tank body fixing device is provided with foot pad positioning assembly, the other side of the first tank body fixing device is provided with wheel support positioning assembly, switch foot connecting pipe positioning assembly, tee connecting pipe positioning assembly and nameplate positioning assembly, the foot pad positioning assembly and the wheel support positioning assembly are arranged below the first fixing station, the switch foot connecting pipe positioning assembly and the tee connecting pipe positioning assembly are arranged above the front and rear sides of the first fixing station respectively, and the nameplate positioning assembly is arranged on the right side of the first fixing station; the present application completes positioning of multiple accessories in one station, and improves welding efficiency.

Description

Technical Field

[0001] This invention relates to the field of welding, and in particular to a front welding fixture and equipment for piston engine gas tank accessories. Background Technology

[0002] Currently, air compressors are devices used to compress gases and are widely used in various industries. As an essential component of air compressors, the market demand for air receivers is increasing. However, the current manufacturing process for air receivers is still very outdated, especially the supports around the outer perimeter of the tank. These supports are numerous, and each has a different shape and installation location. In existing technology, each support is welded manually, one by one. However, this method not only fails to guarantee the precision of the welding, but also results in inconsistent placement of each support on the tank body, and the welding quality is also affected by the skill level of the workers, leading to inconsistent results.

[0003] Existing gas tank welding equipment, such as the Chinese utility model patent (publication number: CN209632429U, publication date: 20191115), discloses a gas tank welding fixture, including a fixture worktable. The worktable is equipped with a fixed seat assembly and a movable seat assembly for positioning the gas tank. The fixed seat assembly and the movable seat assembly are arranged opposite each other. A limiting rod for positioning the gas tank is also provided on the worktable, positioned between the fixed seat assembly and the movable seat assembly. This utility model utilizes the combined action of the fixed seat assembly, the movable seat assembly, and the limiting rod to position the gas tank. Combined with a welding robot, the entire gas tank can be welded in one operation, effectively improving production efficiency and ensuring product quality. Furthermore, this gas tank welding fixture has a simple structure, is easy to operate, has low manufacturing cost, and is easy to promote and use.

[0004] However, the above welding equipment has the following problems: when welding accessories, the gas tank can only weld one accessory at a time, resulting in low welding efficiency. Furthermore, when welding different accessories, the gas tank and accessories need to be repositioned and repeatedly disassembled, which further reduces the welding efficiency. Summary of the Invention

[0005] To address the aforementioned problems, the present invention aims to provide a front welding fixture and equipment for piston engine gas tank accessories. This fixture enables the installation and positioning of the switch foot connector, tee connector, pad, nameplate, and wheel bracket on the gas tank within a single workstation. This allows the gas tank and accessories to be positioned only once for welding, thereby improving welding efficiency.

[0006] To achieve the objectives of this invention, the following technical solutions are adopted:

[0007] A front welding fixture for a piston engine gas tank accessory includes a fixture bridge plate, a first fixed station provided on the fixture bridge plate, the first fixed station being used to fix the bottom of the tank body toward the fixture bridge plate; a first tank body fixing device and a first accessory fixing device are provided in the first fixed station.

[0008] 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.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] Preferably, 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 provided 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 provided with the switch foot connector clamping column. The switch foot connector clamping column includes a switch foot connector clamping part and a switch foot connector positioning part. The width of the switch foot connector 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, the switch foot connector positioning part is provided. The positioning part is cylindrical, and the diameter of the cylinder is adapted to the inner diameter of the switch foot connector. The bottom of the positioning part has a chamfer.

[0014] Preferably, the tee connector positioning assembly includes a tee connector positioning drive component, a tee connector positioning shaft, a tee connector pressure arm, and a tee connector clamping column. The output end of the tee connector positioning drive component is provided with the tee connector positioning shaft, which is positioned laterally. The lower end of the tee connector pressure arm is positioned on the tee connector positioning shaft. The tee connector positioning drive component drives the tee connector positioning shaft to rotate, causing the tee connector pressure arm to flip in a vertical plane. The upper end of the tee connector pressure arm, facing the first fixed position, is provided with the tee connector clamping column. The tee connector clamping column includes a tee connector clamping part and a tee connector positioning part. The width of the tee connector clamping part is greater than the outer diameter of the tee connector, and the clamping part is used to clamp the fixed top of the tee connector. Below the clamping part, the tee connector positioning part is provided. The tee connector positioning part is cylindrical, and the diameter of the cylinder is adapted to the inner diameter of the tee connector. The bottom of the tee connector positioning part is chamfered.

[0015] Preferably, 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 provided with the nameplate positioning shaft, which is arranged horizontally. The lower end of the nameplate pressure arm is provided 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 the vertical plane. The upper end of the nameplate pressure arm facing the first fixed station is provided with the nameplate pressure plate, which is arc-shaped to match 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 provided around the nameplate pressure plate for limiting the nameplate's position.

[0016] Preferably, 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 provided below the tank sidewall positioning block, and the tank clamping cylinder is provided with two output ends, one in front and one in back, and a tank clamping arm is provided on each of the two output ends. The two tank clamping arms are arranged facing each other, and 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 provided on the tank clamping cylinder, and the upper end of the installation part is provided with the clamping part. The clamping part includes at least two clamping bars arranged in a left-right manner, the clamping bars extend longitudinally, and 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.

[0017] A welding equipment for piston engine gas tank accessories includes the aforementioned fixture and welding robot.

[0018] Preferably, the equipment also includes a positioner with the clamping bridge plate mounted on both ends of the positioner; the welding robot is located on one side of the positioner.

[0019] In summary, the advantages of this invention are: the installation and positioning of the switch foot connector, tee connector, foot pad, nameplate, and wheel bracket on the gas tank are completed within a single workstation, allowing the gas tank and accessories to be positioned only once before welding. Before positioning the gas tank, the foot pad and wheel bracket are positioned using the foot pad positioning assembly and the wheel bracket positioning assembly. Then, the first tank body fixing device 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, tee connector positioning assembly, and nameplate positioning assembly 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. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the gas storage tank assembled on the first fixed station in Example 1.

[0021] Figure 2 This is a schematic diagram of a 24L gas storage tank.

[0022] Figure 3 This is a schematic diagram of the structure of the first fixed station in Example 1.

[0023] Figure 4 This is a schematic diagram of the structure of the first fixed station in Example 1.

[0024] Figure 5 This is a schematic diagram of the structure of the first fixed station in Example 1.

[0025] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0026] Figure 7 This is a schematic diagram of a 50L gas storage tank.

[0027] Figure 8 This is a schematic diagram of the structure of the gas storage tank assembled on the first fixed station in Example 2.

[0028] Figure 9 This is a schematic diagram of the structure of the first fixed station in Example 2.

[0029] Figure 10 for Figure 9 A magnified view of a section at point C. Detailed Implementation

[0030] A welding device for piston compressor gas tank accessories includes a fixture, a welding robot, and a positioner. The fixture bridge 5 has its two ends mounted on the positioner; the welding robot is located on one side of the positioner.

[0031] like Figure 1 As shown, the fixture includes a fixture bridge plate 5, on which a first fixed station is provided. The first fixed station is used to fix the bottom of the tank towards the fixture bridge plate 5. The first fixed station is provided with a first tank fixing device 6 for positioning and clamping the tank and a first accessory fixing device 7 for positioning and clamping the various accessories on the tank.

[0032] Example 1:

[0033] 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.

[0034] like Figure 1 and Figure 3 As 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.

[0035] 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.

[0036] 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.

[0037] like Figure 1 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.

[0038] 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.

[0039] like Figure 2 and Figure 3 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.

[0040] 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.

[0041] like Figure 4 As 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.

[0042] 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.

[0043] like Figure 3 , 5 and Figure 6 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.

[0044] 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.

[0045] like Figures 4 to 6As 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.

[0046] 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.

[0047] like Figure 3 and 6 As 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.

[0048] 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.

[0049] 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.

[0050] Example 2:

[0051] like Figure 7 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.

[0052] like Figures 8 to 10 The fixture structure shown is adapted to a 50L gas storage tank.

[0053] like Figures 8 to 10As 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.

[0054] 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 piston engine air reservoir fitting face weld fixture, characterized by, The first fixed station is arranged on the clamp bridge plate (5), and is used for fixing the bottom of the tank body towards the clamp bridge plate (5); the first fixed station is internally provided with a first tank body fixing device (6) and a first accessory fixing device (7); The first accessory fixing device (7) comprises a foot pad positioning assembly (71), a wheel support positioning assembly (72), a switch foot pipe connecting positioning assembly (73), a tee pipe connecting positioning assembly (74) and a nameplate positioning assembly (75); the foot pad positioning assembly (71) is arranged on one side of the first tank body fixing device (6), the wheel support positioning assembly (72), the switch foot pipe connecting positioning assembly (73), the tee pipe connecting positioning assembly (74) and the nameplate positioning assembly (75) are arranged on the other side of the first tank body fixing device (6), the foot pad positioning assembly (71) and the wheel support positioning assembly (72) are arranged below the first fixed station, the switch foot pipe connecting positioning assembly (73) and the tee pipe connecting positioning assembly (74) are respectively arranged above the front and rear sides of the first fixed station, and the nameplate positioning assembly (75) is arranged on the right side of the first fixed station; The foot pad positioning assembly (71) is used for supporting and positioning the foot pad in the longitudinal direction; and the wheel support positioning assembly (72) is used for supporting and positioning the wheel support; The switch foot pipe connecting positioning assembly (73) is used for pressing the switch foot pipe connecting from above on the tank body; the tee pipe connecting positioning assembly (74) is used for pressing the tee pipe connecting from above on the tank body; and the nameplate positioning assembly (75) is used for pressing the nameplate on the end cover at the head end of the tank body; The foot pad positioning assembly (71) comprises a foot pad pipe connecting positioning seat (711), a foot pad pipe connecting positioning column (712), a foot pad support positioning seat (713), a foot pad support positioning long rod (714) and a foot pad support positioning short rod (715); the foot pad pipe connecting positioning seat (711) is fixedly arranged on one side of the first tank body fixing device (6), the foot pad pipe connecting positioning column (712) is arranged on the upper end face of the foot pad pipe connecting positioning seat (711), the foot pad pipe connecting positioning column (712) comprises a foot pad pipe connecting supporting part (7121) and a foot pad pipe connecting positioning part (7122), the width of the foot pad pipe connecting supporting part (7121) is greater than the outer diameter of the foot pad pipe connecting, and the foot pad pipe connecting supporting part (7121) is used for supporting the bottom of the foot pad pipe connecting; the foot pad pipe connecting positioning part (7122) is arranged above the foot pad pipe connecting supporting part (7121) and is in a cylindrical shape, and the diameter of the cylindrical shape is adapted to the inner diameter of the foot pad pipe connecting; The lower part of the foot pad support positioning seat (713) is arranged on the clamp bridge plate (5), the upper end surface of the foot pad support positioning seat (713) is a support surface for supporting the foot pad support, the front and rear sides of the upper end surface of the foot pad support positioning seat (713) are provided with longitudinally extending foot pad support positioning long rods (714), the distance between the front and rear foot pad support positioning long rods (714) is adapted to the length of the foot pad support, the height of the upper end of the foot pad support positioning long rod (714) is higher than the upper end surface of the foot pad support positioning seat (713), the foot pad support positioning long rod (714) is used for positioning the length direction of the foot pad support, and the left and right sides of the upper end surface of the foot pad support positioning seat (713) are provided with a plurality of longitudinally extending foot pad support positioning short rods (715), the distance between the left and right foot pad support positioning short rods (715) is adapted to the width of the foot pad support, the height of the upper end of the foot pad support positioning short rod (715) is higher than the upper end surface of the foot pad support positioning seat (713), and the foot pad support positioning short rod (715) is used for positioning the width direction of the foot pad support; The wheel support positioning assembly (72) comprises a wheel support positioning seat (721), a wheel support positioning long rod (722) and a wheel support positioning short rod (723); the lower part of the wheel support positioning seat (721) is arranged on the clamp bridge plate (5), the upper end surface of the wheel support positioning seat (721) is a support surface for supporting the wheel support, the front and rear sides of the upper end surface of the wheel support positioning seat (721) are provided with longitudinally extending wheel support positioning long rods (722), the upper end of the wheel support positioning long rod (722) is higher than the upper end surface of the wheel support positioning seat (721), the distance between the front and rear wheel support positioning long rods (722) is adapted to the length of the wheel support, the wheel support positioning long rod (722) is used for positioning the length direction of the wheel support, the left and right sides of the upper end surface of the wheel support positioning seat (721) are provided with a plurality of longitudinally extending wheel support positioning short rods (723), the upper end of the wheel support positioning short rod (723) is higher than the upper end surface of the wheel support positioning seat (721), the distance between the left and right wheel support positioning short rods (723) is adapted to the width of the wheel support, and the wheel support positioning short rod (723) is used for positioning the width direction of the wheel support; The switch foot connector positioning assembly (73) comprises a switch foot connector positioning driving component (731), a switch foot connector positioning rotating shaft (732), a switch foot connector pressing arm (733) and a switch foot connector pressing column (734); The output end of the switch foot connector positioning driving component (731) is provided with the switch foot connector positioning rotating shaft (732), the switch foot connector positioning rotating shaft (732) is arranged in the transverse direction, the lower end of the switch foot connector pressing arm (733) is arranged on the switch foot connector positioning rotating shaft (732), and the switch foot connector positioning driving component (731) drives the switch foot connector positioning rotating shaft (732) to rotate, so that the switch foot connector pressing arm (733) is flipped in the vertical plane; The upper end of the switch foot connector pressing arm (733) is provided with a switch foot connector pressing column (734) towards the side of the first fixed station, the switch foot connector pressing column (734) comprises a switch foot connector pressing part (7341) and a switch foot connector positioning part (7342), the width of the switch foot connector pressing part (7341) is greater than the outer diameter of the switch foot connector, and the switch foot connector pressing part (7341) is used for pressing the top of the switch foot connector; The three-way connector positioning assembly (74) comprises a three-way connector positioning driving part (741), a three-way connector positioning rotating shaft (742), a three-way connector pressing arm (743) and a three-way connector pressing column (744); the output end of the three-way connector positioning driving part (741) is provided with the three-way connector positioning rotating shaft (742), the three-way connector positioning rotating shaft (742) is arranged in the transverse direction, the lower end of the three-way connector pressing arm (743) is arranged on the three-way connector positioning rotating shaft (742), the three-way connector positioning driving part (741) drives the three-way connector positioning rotating shaft (742) to rotate, so that the three-way connector pressing arm (743) is flipped in the vertical plane; the upper end of the three-way connector pressing arm (743) is provided with the three-way connector pressing column (744) towards the side of the first fixed station, the three-way connector pressing column (744) comprises a three-way connector pressing part (7441) and a three-way connector positioning part (7442), the width of the three-way connector pressing part (7441) is greater than the outer diameter of the three-way connector, and the three-way connector pressing part (7441) is used for pressing the top of the three-way connector.

2. A piston engine gas tank fitting face welding jig according to claim 1, characterized in that, The top of the pad foot connector positioning part (7122) is provided with a chamfer.

3. A face welding fixture for a piston engine gas tank fitting according to claim 1, characterized in that The lower end of the switch foot connector pressing part (7341) is provided with the switch foot connector positioning part (7342), 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, and the bottom of the switch foot connector positioning part (7342) is provided with a chamfer.

4. A face welding fixture for a piston engine gas reservoir fitting according to claim 1, characterized in that The lower end of the three-way connector pressing part (7441) is provided with the three-way connector positioning part (7442), the three-way connector positioning part (7442) is cylindrical and the diameter of the cylinder is adapted to the inner diameter of the three-way connector, and the bottom of the three-way connector positioning part (7442) is provided with a chamfer.

5. A face welding fixture for a piston engine gas tank fitting according to claim 1, characterized in that, The nameplate positioning assembly (75) comprises a nameplate positioning driving part (751), a nameplate positioning rotating shaft (752), a nameplate pressing arm (753), a nameplate pressing plate (754) and a nameplate side edge limiting block (755); the output end of the nameplate positioning driving part (751) is provided with the nameplate positioning rotating shaft (752), the nameplate positioning rotating shaft (752) is arranged in the transverse direction, the lower end of the nameplate pressing arm (753) is arranged on the nameplate positioning rotating shaft (752), and the nameplate positioning driving part (751) drives the nameplate positioning rotating shaft (752) to rotate, so that the nameplate pressing arm (753) is turned in the vertical plane; the upper end of the nameplate pressing arm (753) is provided with the nameplate pressing plate (754) towards the side of the first fixed station, the side of the nameplate pressing plate (754) towards the first fixed station is an arc shape suitable for the curvature of the end cover; the size of the nameplate pressing plate (754) is the same as that of the nameplate, and a plurality of nameplate side edge limiting blocks (755) are arranged around the nameplate pressing plate (754), and the nameplate side edge limiting blocks (755) are used for limiting the periphery of the nameplate.

6. A face weld fixture for a piston engine air reservoir fitting according to claim 1, wherein, The first tank body fixing device (6) comprises a tank body side wall positioning block (61), a tank body clamping air cylinder (62), a tank body clamping arm (63) and a tank body clamping block (64); the top surface of the tank body side wall positioning block (61) is an arc shape suitable for the curvature of the tank body side wall; the tank body clamping air cylinder (62) is arranged below the tank body side wall positioning block (61), the tank body clamping air cylinder (62) is provided with two output ends in front and back, the tank body clamping arms (63) are arranged on the two output ends, the front and back tank body clamping arms (63) are arranged towards each other, and the tank body side wall positioning block (61) is located between the two tank body clamping arms (63); the tank body clamping arm (63) comprises a mounting portion (631) and a clamping portion (632), the lower end of the mounting portion (631) is arranged on the tank body clamping air cylinder (62), the clamping portion (632) is arranged at the upper end of the mounting portion (631), the clamping portion (632) comprises at least two clamping strips (6321) arranged in the left and right directions, the clamping strips (6321) extend in the longitudinal direction, the upper end and the lower end of the clamping strips (6321) are bent towards the inner side of the clamping direction, and the tank body clamping blocks (64) are arranged at the upper and lower ends.

7. A piston engine gas reservoir fitting welding apparatus characterized by, The device further comprises a positioner, and the clamp bridge plate (5) is arranged at two ends of the positioner; the welding robot is located at one side of the positioner.

8. A piston engine gas tank fitting welding apparatus according to claim 7, characterized in that ​

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