CN114289955A

CN114289955A - Piston machine gas holder accessory welding jig and equipment

Info

Publication number: CN114289955A
Application number: CN202210151760.7A
Authority: CN
Inventors: 钟仁志; 王斌; 陶峰
Original assignee: Xinlei Compressor Co Ltd
Current assignee: Xinlei Compressor Co Ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-04-08

Abstract

The utility model relates to the field of welding, in particular to a welding fixture and equipment for accessories of a piston machine gas storage tank, which comprises a second tank body fixing device and a second accessory fixing device; the second fitting fixing device comprises a handle positioning component, a machine plate positioning component, a switch pin pipe supporting component, a handle positioning component and a drainage connecting pipe positioning component; a lifting handle positioning component is arranged on one side of the second tank body fixing device, and a machine plate positioning component, a switch pin pipe supporting component, a handle positioning component and a drainage connecting pipe positioning component are arranged on the other side of the second tank body fixing device; the handle positioning assembly is positioned on the left side of the second fixing station and faces the second fixing station; the machine plate positioning assembly and the switch pin tube supporting assembly are positioned at the bottom of the second fixing station; the handle positioning assembly is positioned on the front side of the right part of the second fixing station, and the drainage connecting pipe positioning assembly is positioned above the rear side of the right part of the second fixing station; the utility model can complete the positioning of a plurality of accessories in one station, thereby improving the welding efficiency.

Description

Piston machine gas holder accessory welding jig and equipment

Technical Field

The utility model relates to the field of welding, in particular to a welding fixture and equipment for an accessory of a gas storage tank of a piston machine.

Background

Currently, an air compressor is a device for compressing air, and is widely applied in various industries. The air storage tank is used as an essential part of an air compressor, and the market demand for the air storage tank is increasing. However, the production process of the existing air storage tank is quite lagged behind, particularly, the number of the brackets on the outer periphery of the air storage tank is large, the shape of each bracket is different, and the installation positions are also different. In the prior art, welding is carried out by manually welding one bracket. However, in such an operation mode, not only the welding precision of the bracket cannot be guaranteed, but also the positions of all the welded brackets on the tank body are inconsistent, and the welding quality is also affected by the quality of workers to be uneven.

The existing welding equipment for the gas storage tank, such as Chinese utility model patent (publication No. CN209632429U, published: 20191115), discloses a welding fixture for the gas storage tank, which comprises a fixture workbench, wherein a fixed seat component and a movable seat component for positioning the gas storage tank are arranged on the fixture workbench, the fixed seat component and the movable seat component are oppositely arranged from left to right, a limiting rod for positioning the gas storage tank is also arranged on the fixture workbench, and the limiting rod is arranged between the fixed seat component and the movable seat component; the gas storage tank can be positioned by adopting the combined action of the fixed seat assembly, the movable seat assembly and the limiting rod, and can be completely welded at one time by matching with a welding robot, so that the production efficiency is effectively improved, and the product quality is ensured. In addition, the welding fixture for the gas storage tank is simple in structure, simple and convenient to operate, low in manufacturing cost and easy to popularize and use.

However, the above welding apparatus has the following problems: the gas holder can only weld a kind of accessory once when welding the accessory, leads to welding inefficiency, and because when welding different accessories, needs relocate gas holder and accessory, and the dismouting is relapse, has further reduced welding efficiency.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide a welding fixture and equipment for accessories of a piston machine gas storage tank.

For the purpose of the utility model, the following technical scheme is adopted for implementation:

a welding fixture for accessories of a gas storage tank of a piston machine comprises a fixture bridge plate, wherein a second fixing station is arranged on the fixture bridge plate and used for fixing the top of a tank body towards the fixture bridge plate; a second tank body fixing device and a second accessory fixing device are arranged in the second fixing station;

the second fitting fixing device comprises a handle positioning component, a machine plate positioning component, a switch pin pipe supporting component, a handle positioning component and a drainage connecting pipe positioning component; a lifting handle positioning component is arranged on one side of the second tank body fixing device, and a machine plate positioning component, a switch pin pipe supporting component, a handle positioning component and a drainage connecting pipe positioning component are arranged on the other side of the second tank body fixing device; the handle positioning assembly is positioned on the left side of the second fixing station and faces the second fixing station; the machine plate positioning assembly and the switch pin tube supporting assembly are positioned at the bottom of the second fixing station and face the second fixing station; the handle positioning assembly is positioned on the front side of the right part of the second fixing station, and the drainage connecting pipe positioning assembly is positioned above the rear side of the right part of the second fixing station;

the handle positioning assembly is used for supporting and positioning the handle; the machine plate positioning assembly is used for clamping the machine plates on the front side and the rear side; the switch pin connecting pipe supporting assembly is used for supporting and positioning the switch pin connecting pipe; the handle positioning component is used for positioning the head end of the handle, clamping the middle part of the handle and fixing the tail end of the handle; the drainage connecting pipe positioning assembly is used for positioning and clamping the drainage connecting pipe on the tank body.

Preferably, the handle positioning assembly comprises a handle positioning cylinder, a handle bottom pressing plate, a handle side limiting plate and a handle end limiting pressing plate; the lifting handle positioning cylinder is obliquely arranged and faces the second fixing station, a lifting handle bottom pressing plate is arranged at the output end of the lifting handle positioning cylinder, lifting handle side part limiting plates are arranged on the upper side and the lower side of the lifting handle bottom pressing plate, the tops of the lifting handle side part limiting plates are higher than the lifting handle bottom pressing plate, and the distance between the two lifting handle side part limiting plates is matched with the width of a lifting handle; the front side and the rear side of the handle bottom pressing plate are provided with handle end part limiting pressing plates, the two handle end part limiting pressing plates are outwards opened, so that the opening at the upper part is larger than the opening at the lower part, and the size of the opened opening is matched with the inclination angles of the two side edges of the handle; the inner side shape of the upper end of the handle end limiting pressing plate is an arc shape which is matched with the bending of the handle.

Preferably, the machine plate positioning assembly comprises a machine plate positioning frame, a machine plate positioning column, a machine plate pressing cylinder and a machine plate pressing plate; the machine plate positioning frame is arranged at the bottom of the second fixing station, machine plate supporting tables are arranged on the front side and the rear side of the top of the machine plate positioning frame, and the machine plate supporting tables are used for supporting the machine plate from the lower part; the left side and the right side of the machine plate supporting table are respectively provided with machine plate positioning columns, the machine plate positioning columns extend along the longitudinal direction, the number of the machine plate positioning columns corresponds to the number of the through holes in the machine plate, and the machine plate positioning columns are used for extending into the through holes in the machine plate to position the machine plate; the front side and the rear side of the machine plate positioning frame are both provided with machine plate pressing cylinders which are arranged upwards along the longitudinal direction, the output end of each machine plate pressing cylinder is provided with a machine plate pressing plate, and the machine plate pressing plates are positioned above the machine plate supporting table; the bottom surface of the machine plate pressing plate is provided with a groove corresponding to the machine plate positioning column.

Preferably, the switch pin connecting pipe supporting assembly comprises a switch pin connecting pipe supporting seat and a switch pin connecting pipe positioning column, the switch pin connecting pipe supporting seat is fixedly arranged, the upper end surface of the switch pin connecting pipe supporting seat is provided with the switch pin connecting pipe positioning column, the switch pin connecting pipe positioning column comprises a switch pin connecting pipe supporting part and a switch pin connecting pipe positioning part, the width of the switch pin connecting pipe supporting part is larger than the outer diameter of the switch pin connecting pipe, a longitudinally extending switch pin connecting pipe positioning part is arranged above the switch pin connecting pipe supporting part, the switch pin connecting pipe positioning part is cylindrical, and the outer diameter of the cylindrical part is matched with the inner diameter of the switch pin connecting pipe; the top of the switch foot connecting pipe positioning part is provided with a chamfer.

Preferably, the handle positioning component comprises a handle head end positioning seat, a handle middle clamping cylinder, a handle middle clamping jaw and a handle tail end positioning jaw; the handle head end positioning seat is arranged on the clamp bridge plate, a handle head end limiting groove extending along the front-back direction is arranged on the upper end surface of the handle head end positioning seat, and the width of the handle head end limiting groove is matched with the outer diameter of the handle head end; the middle part clamping cylinder of the handle is arranged at the front side of the second fixed station, the middle part clamping cylinder of the handle is transversely arranged, the output end of the middle part clamping cylinder of the handle is provided with a pair of middle part clamping jaws of the handle, the inner side of the middle part clamping jaw of the handle is provided with a clamping groove of the handle, and the middle part clamping jaw of the handle is used for clamping the middle part of the handle; the handle tail end positioning claw is fixedly arranged, and a handle tail end positioning groove is formed in the side, facing the second fixing station, of the handle tail end positioning claw.

Preferably, the drainage connecting pipe positioning assembly comprises a drainage connecting pipe positioning driving part, a drainage connecting pipe positioning rotating shaft, a drainage connecting pipe positioning pressure arm and a drainage connecting pipe positioning compression column; the drainage connecting pipe positioning driving part is arranged along the longitudinal direction, the output end of the drainage connecting pipe positioning driving part is provided with a drainage connecting pipe positioning rotating shaft, the drainage connecting pipe positioning rotating shaft is arranged along the transverse direction, the lower end of the drainage connecting pipe positioning pressure arm is arranged on the drainage connecting pipe positioning rotating shaft, the drainage connecting pipe positioning pressure arm is positioned on the rear side of the second fixing station, and the drainage connecting pipe positioning driving part drives the drainage connecting pipe positioning rotating shaft to rotate so that the drainage connecting pipe positioning pressure arm is turned over in the front-rear direction; the side, facing the second fixing station, of the upper end of the drainage connecting pipe positioning pressure arm is provided with a drainage connecting pipe positioning and pressing column, the drainage connecting pipe positioning and pressing column comprises a drainage connecting pipe pressing part and a drainage connecting pipe positioning part, the width of the drainage connecting pipe pressing part is larger than the outer diameter of the drainage connecting pipe, and the drainage connecting pipe pressing part is used for pressing the top of the drainage connecting pipe; a drainage connecting pipe positioning part is arranged below the drainage connecting pipe pressing part, the drainage connecting pipe positioning part is cylindrical, and the diameter of the cylindrical part is matched with the inner diameter of the drainage connecting pipe; the bottom of the positioning part of the drainage connecting pipe is provided with a chamfer.

Preferably, the second accessory fixing device further comprises a tank tail end supporting component and a tank head end supporting component; the tank tail end supporting assembly is arranged on one side of the lifting handle positioning assembly; the tank head end supporting component is arranged on one side of the machine plate positioning component; the tank body tail end supporting assembly and the tank body head end supporting assembly are positioned at the bottom of the second fixing station and face the second fixing station; the tank tail end supporting assembly is used for supporting and positioning the tail end of the tank; the tank head end support assembly is used for supporting and positioning the head end of the tank body.

Preferably, the tank tail end supporting assembly comprises a tank tail end supporting cylinder, a tank tail end supporting plate and a tank tail end supporting block; the tank tail end supporting cylinder is longitudinally arranged and faces a second fixing station, a tank tail end supporting plate is arranged at the output end of the tank tail end supporting cylinder and is positioned at the bottom of the second fixing station, the tank tail end supporting plate comprises a tail end connecting part and a tail end supporting part, the tail end connecting part is transversely arranged, the lower end of the tail end connecting part is connected to the tank tail end supporting cylinder, the front end and the rear end of the tail end connecting part are provided with inclined tail end supporting parts, the upper ends of the two tail end supporting parts are outwards opened, and a tank tail end supporting block is arranged on the inner side of the tail end supporting part;

the tank head end supporting assembly comprises a tank head end supporting cylinder, a tank head end supporting plate and a tank head end supporting block; jar body head end support cylinder is along vertically setting up, and jar body head end support cylinder's output sets up jar body head end backup pad, and jar body head end backup pad extends to the bottom of the fixed station of second, and jar body head end backup pad includes head end connecting portion and head end supporting part, and the head end connecting portion extend along the fore-and-aft direction, and both ends set up the head end supporting part of slope around the head end connecting portion, and the upper end of head end supporting part outwards opens, and the inboard of head end supporting part sets up jar body head end supporting shoe.

Preferably, the second tank body fixing device comprises a tank body side wall positioning block, a tank body clamping cylinder, a tank body clamping arm and a tank body clamping block; the top surface of the positioning block on the side wall of the tank body is in an arc shape which is adaptive to the radian of the side wall of the tank body; a tank body clamping cylinder is arranged below the tank body side wall positioning block, a front output end and a rear output end are arranged on the tank body clamping cylinder, tank body clamping arms are arranged on the two output ends, the front tank body clamping arm and the rear tank body clamping arm are arranged in opposite directions, and the tank body side wall positioning block is positioned between the two tank body clamping arms; the tank body clamping arm comprises an installation part and a clamping part, the lower end of the installation part is arranged on the tank body clamping cylinder, the upper end of the installation part is provided with the clamping part, the clamping part comprises at least two clamping strips which are arranged from left to right, the clamping strips extend longitudinally, the upper ends and the lower ends of the clamping strips are bent towards the inner sides of the clamping direction, and tank body clamping blocks are arranged at the upper ends and the lower ends.

The welding equipment for the gas storage tank accessory of the piston machine comprises the clamp, the welding robot and the positioner, wherein two ends of a bridge plate of the clamp are arranged on the positioner; the welding robot is located one side of machine of shifting.

In conclusion, the utility model has the advantages that: the installation and the positioning of the handle, the machine plate, the handle and the drainage connecting pipe on the gas storage tank are completed in one station, so that the gas storage tank and the accessories can be welded only by positioning once. Before the gas holder location, take over supporting component through the switch foot earlier and take over the switch foot and fix a position, then rethread second jar body fixing device transversely sets up the jar body in the station, and the gas holder of being convenient for looks for the reference surface, is favorable to improving the accuracy of accessory location, improves welding quality. And finally, the handle, the machine plate, the handle and the drainage connecting pipe are respectively positioned through the handle positioning assembly, the machine plate positioning assembly, the handle positioning assembly and the drainage connecting pipe positioning assembly, so that the positioning of accessories is realized, the welding of a plurality of accessories can be realized by one station, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic view showing the structure of the air storage tank assembled at a second fixed station.

Fig. 2 is a schematic structural view of a 24L air tank.

Fig. 3 is a schematic structural diagram of a second fixing station.

Fig. 4 is a schematic structural view of a second fixing station.

Fig. 5 is a schematic structural view of the board positioning assembly.

Fig. 6 is a partially enlarged view of fig. 5 at B.

Fig. 7 is a schematic structural view of a second fixing station.

Detailed Description

A welding device for accessories of a gas storage tank of a piston machine comprises a clamp, a welding robot and a positioner. Two ends of the clamp bridge plate 5 are arranged on the positioner; the welding robot is located one side of machine of shifting.

As shown in fig. 1, the fixture comprises a fixture bridge plate 5, a second fixing station is arranged on the fixture bridge plate 5, and the second fixing station is used for fixing the top of the tank body towards the fixture bridge plate 5; a second tank fixing device 8 and a second fitting fixing device 9 are arranged in the second fixing station.

As shown in fig. 2, the capacity of the air tank in this embodiment is 24L. The air tank 10 includes a tank 101, and the tank 101 is a horizontally disposed cylindrical shape. End covers 102 are arranged at the head end and the tail end of the tank body 101, a nameplate 103 is arranged on the end cover 102 at the head end, a switch foot connecting pipe 104 and a three-way connecting pipe 105 are arranged on the upper surface, close to the head end, of the tank body 101, a handle 106 is arranged on one side of the head end of the tank body 101, machine plates 107 for mounting a screw machine are arranged on the front side and the rear side of the upper surface in the middle of the tank body, and through holes which penetrate through the machine plates up and down are formed in the machine plates. The upper surface of the tank body close to the tail end is provided with a handle 108, the lower surface of the tank body close to the head end is provided with a foot pad connecting pipe 109 and a water drainage connecting pipe 110, and the lower surface of the tank body close to the tail end is provided with a wheel support 111 for mounting wheels.

As shown in fig. 3 and 4, the second can fixing device 8 includes a can sidewall positioning block 61, a can clamping cylinder 62, a can clamping arm 63, and a can clamping block 64. The top surface of the tank side wall positioning block 61 is arc-shaped corresponding to the radian of the tank side wall, so that the side surface of the tank body can be supported and positioned conveniently. The tank body side wall positioning block 61 is provided with a tank body clamping cylinder 62 below, the tank body clamping cylinder 62 is provided with a front output end and a rear output end, the two output ends are respectively provided with a tank body clamping arm 63, the front tank body clamping arm 63 and the rear tank body clamping arm 63 are oppositely arranged, and the tank body side wall positioning block 61 is positioned between the two tank body clamping arms 63. The can body clamping arm 63 includes a mounting portion 631 and a clamping portion 632, the lower end of the mounting portion 631 is disposed on the can body clamping cylinder 62, the upper end of the mounting portion 631 is disposed with the clamping portion 632, the clamping portion 632 includes at least two clamping strips 6321 arranged in a left-right direction, the clamping strips 6321 extend in a longitudinal direction, the upper end and the lower end of the clamping strips 6321 are bent toward the inner side of the clamping direction, and can body clamping blocks 64 are disposed on the upper end and the lower end.

The second tank fixing device 8 is used as follows: the gas storage tank body is transversely placed in the second tank body fixing device 8, the side wall of the bottom of the tank body is attached to the tank body side wall positioning block 61, the tank body is preliminarily positioned through the tank body side wall positioning block 61, then the axial position of the tank body is adjusted to correspond to the position of an accessory to be welded, then the tank body clamping cylinder 62 drives the front tank body clamping arm 63 and the rear tank body clamping arm 63 to move towards the tank body direction, the front side face and the rear side face of the tank body are clamped, and during clamping, the tank body clamping block 64 is tightly pressed on the side wall of the tank body.

The second tank fixing device 8 solves the problem that when the tank body is clamped tightly in the prior art, the clamping device shields the side face of the tank body in a large area, so that the position of the tank body is fixed, but when subsequent welding is caused, a welding gun hardly enters the welding position, and welding of other accessories on the tank body is not facilitated, the second tank fixing device 8 has the advantage that the clamping portion 632 comprises at least two clamping strips 6321 arranged left and right, so that clamping force is distributed on the left side and the right side of the tank body, the clamping stability is favorably improved, shielding of the tank body is reduced, and subsequent welding of other accessories is facilitated. The top surface of jar body lateral wall locating piece 61 is the arc that suits with jar body lateral wall's radian for the lateral wall of the jar body can laminate completely on this curved top surface, is favorable to supporting and the location the lateral wall of the jar body, guarantees jar preliminary location effect of the body. The upper end and the lower end of the clamping strip 6321 are bent towards the clamping direction, which is beneficial to improving the contact area between the tank body clamping block 64 and the tank body side wall and improving the clamping effect. The front and the rear tank body clamping arms 63 are driven by the tank body clamping air cylinders 62 at the same time, so that the tank body clamping blocks 64 are simultaneously pressed on the side walls of the tank body, the tank body is prevented from moving, and the position of the tank body is prevented from moving. Therefore, the fittings to be welded are positioned on the upper surface and the lower surface, and the installation and the positioning of the fittings are convenient.

As shown in fig. 1, the second fitting holding device 9 includes a handle positioning member 91, a board positioning member 93, a switch pin support member 95, a handle positioning member 96, and a drain pipe positioning member 97. A handle positioning component 91 is arranged on one side of the second tank body fixing device 8, and a machine plate positioning component 93, a switch foot connecting pipe supporting component 95, a handle positioning component 96 and a drainage connecting pipe positioning component 97 are arranged on the other side of the second tank body fixing device 8. The handle positioning assembly 91 is located to the left of and facing the second securing station. The board positioning assembly 93 and the switch pin support assembly 95 are located at the bottom of the second stationary station and face the second stationary station. The handle positioning assembly 96 is located on the front side of the right portion of the second fixed station, and the drain connection pipe positioning assembly 97 is located above the rear side of the right portion of the second fixed station.

The handle positioning assembly 91 is used to support and position the handle. The plate positioning assembly 93 is used for clamping the front and rear plates. The switch leg support assembly 95 is used to support and position the switch leg. The handle positioning assembly 96 is used to position the head end of the handle, clamp the middle of the handle, and secure the tail end of the handle. The drain nipple locating assembly 97 is used to locate and clamp the drain nipple to the tank.

As shown in fig. 3, the handle positioning assembly 91 includes a handle positioning cylinder 911, a handle bottom compression plate 912, a handle side limiting plate 913, and a handle end limiting compression plate 914. Handle location cylinder 911 slope sets up and towards the fixed station of second, and the output of handle location cylinder 911 sets up handle bottom pressure strip 912, and the upper and lower both sides of handle bottom pressure strip 912 set up handle lateral part limiting plate 913, and the top of handle lateral part limiting plate 913 is higher than handle bottom pressure strip 912, and the distance between two handle lateral part limiting plates 913 matches with the width of handle. The front side and the rear side of the handle bottom pressing plate 912 are provided with handle end part limiting pressing plates 914, and the two handle end part limiting pressing plates 914 are outwards opened, so that the opening on the upper part is larger than the opening on the lower part, and the size of the opened opening is matched with the inclination angles of the two side edges of the handle. The inner side shape of the upper end of the handle end limiting pressing plate 914 is an arc shape which is matched with the bending of the handle.

When the handle is in the location, on putting the lower part of handle on the last section of handle bottom pressure strip 912, the left and right sides of handle carries on spacingly through handle lateral part limiting plate 913 simultaneously, and both ends carry on spacingly through the spacing pressure strip 914 of handle tip around the handle, and the inboard of the spacing pressure strip 914 of handle tip is laminated mutually with bending of handle upper end, further ensures the location effect of handle.

As shown in fig. 4 to 6, the board positioning assembly 93 includes a board positioning frame 931, board positioning posts 932, a board pressing cylinder 933, and a board pressing plate 934. The board positioning frame 931 is disposed at the bottom of the second fixing station, board support platforms 9311 are disposed on the front and rear sides of the top of the board positioning frame 931, and the board support platforms 9311 are used for supporting boards from below. The left and right sides of board brace table 9311 respectively sets up board reference column 932, and board reference column 932 is along longitudinal extension, and the quantity of board reference column 932 corresponds with the through-hole quantity on the board, and board reference column 932 is arranged in stretching into the through-hole of board and fixes a position the board. Front side and the rear side of board locating rack 931 all set up board pressure cylinder 933, and board pressure cylinder 933 sets up along vertical up, and the output that board pressure cylinder 933 sets up board pressure strip 934, and board pressure strip 934 is located the top of board brace 9311, is provided with the recess that corresponds with board reference column 932 on the bottom surface of board brace 9311.

The board is fixing a position, and the manual work is put the board brace table 9311 with the board to make the through-hole of board and board reference column 932 cooperate, then board pressure cylinder 933 drive board pressure strip 934 downstream, thereby board pressure strip 934 presses on the up end of board, and recess and board reference column 932 on the board pressure strip 934 cooperate simultaneously, press from both sides the board tight on board brace table 9311.

As shown in fig. 4, the switch leg connection supporting assembly 95 includes a switch leg connection supporting base 951 and a switch leg connection positioning column 952, the switch leg connection supporting base 951 is fixedly disposed, the switch leg connection positioning column 952 is disposed on an upper end surface of the switch leg connection supporting base 951, the switch leg connection positioning column 952 includes a switch leg connection supporting portion 9521 and a switch leg connection positioning portion 9522, a width of the switch leg connection supporting portion 9521 is greater than an outer diameter of the switch leg connection, a switch leg connection positioning portion 9522 extending longitudinally is disposed above the switch leg connection supporting portion 9521, and the switch leg connection positioning portion 9522 is cylindrical and an outer diameter of the cylinder is adapted to an inner diameter of the switch leg connection. The top of the switch pin positioning portion 9522 is provided with a chamfer.

When the switch pin connection pipe is supported, the interface at the lower part of the switch pin connection pipe is matched with the switch pin connection pipe positioning part 9522 of the switch pin connection pipe positioning column 952, and moves downwards along the switch pin connection pipe positioning part 9522 until the bottom surface of the switch pin connection pipe is contacted with the switch pin connection pipe supporting part 9521, so that the positioning and the supporting of the switch connection pipe are completed.

As shown in fig. 4, the pull handle positioning assembly 96 includes a pull handle head end positioning seat 961, a pull handle middle clamping cylinder 962, a pull handle middle clamping jaw 963, and a pull handle tail end positioning jaw 964. The handle head end positioning seat 961 is arranged on the clamp bridge plate 5, a handle head end limiting groove 9611 extending in the front-back direction is formed in the upper end face of the handle head end positioning seat 961, and the width of the handle head end limiting groove 9611 is adapted to the outer diameter of the handle head end. The handle middle clamping cylinder 962 is arranged on the front side of the second fixed station, the handle middle clamping cylinder 962 is transversely arranged, the output end of the handle middle clamping cylinder 962 is provided with a pair of handle middle clamping jaws 963, the inner side of the handle middle clamping jaws 963 is provided with a handle clamping groove, and the handle middle clamping jaws 963 are used for clamping the middle part of the handle. The handle tail end positioning claw 964 is fixedly arranged, and a handle tail end positioning groove 9641 is arranged on the side, facing the second fixing station, of the handle tail end positioning claw 964.

When the handle is positioned, the head end of the handle is firstly placed in the handle head end limiting groove 9611 of the handle head end positioning seat 961, then the tail end of the handle is placed in the handle tail end positioning groove 9641 of the handle tail end positioning claw 964, the handle middle clamping cylinder 962 drives the handle middle clamping jaw 963 to move, the handle middle clamping jaw 963 clamps the middle of the handle, and the positioning and clamping of the handle are completed.

As shown in fig. 4, the drain connection positioning assembly 97 includes a drain connection positioning driving part 971, a drain connection positioning rotating shaft 972, a drain connection positioning pressing arm 973, and a drain connection positioning pressing column 974. The drainage connecting pipe positioning driving part 971 is arranged along the longitudinal direction, the output end of the drainage connecting pipe positioning driving part 971 is provided with a drainage connecting pipe positioning rotating shaft 972, the drainage connecting pipe positioning rotating shaft 972 is arranged along the transverse direction, the lower end of the drainage connecting pipe positioning pressure arm 973 is arranged on the drainage connecting pipe positioning rotating shaft 972, the drainage connecting pipe positioning pressure arm 973 is located on the rear side of the second fixing station, and the drainage connecting pipe positioning driving part 971 rotates by driving the drainage connecting pipe positioning rotating shaft 972, so that the drainage connecting pipe positioning pressure arm 973 overturns in the front-back direction. The side of the upper end of the drainage connecting pipe positioning pressure arm 973 facing the second fixed station is provided with a drainage connecting pipe positioning and pressing column 974, the drainage connecting pipe positioning and pressing column 974 comprises a drainage connecting pipe pressing part 9741 and a drainage connecting pipe positioning part 9742, the width of the drainage connecting pipe pressing part 9741 is larger than the outer diameter of the drainage connecting pipe, and the drainage connecting pipe pressing part 9741 is used for pressing the top of the drainage connecting pipe. A drain connecting pipe positioning part 9742 is arranged below the drain connecting pipe pressing part 9741, the drain connecting pipe positioning part 9742 is cylindrical, and the diameter of the cylindrical shape is matched with the inner diameter of the drain connecting pipe. The bottom of the drain nipple positioning portion 9742 is provided with a chamfer.

When the drainage connection pipe is positioned, the drainage connection pipe is manually placed on a drainage interface of the tank body, then the drainage connection pipe positioning driving part 971 drives the drainage connection pipe positioning rotating shaft 972 to rotate, so that the drainage connection pipe positioning pressure arm 973 is turned over in the front-back direction, the drainage connection pipe positioning part 9742 of the drainage connection pipe positioning pressing column 974 extends into the top of the drainage connection pipe, and the drainage connection pipe pressing part 9741 is pressed on the upper end face of the drainage connection pipe.

As shown in fig. 1, the second fitting holding device 9 further includes a tank tail end support assembly 92 and a tank head end support assembly 94. The tank tail end support assembly 92 is disposed on one side of the handle positioning assembly 91. The tank head end support assembly 94 is disposed on one side of the deck positioning assembly 93. The can end support assembly 92 and the can head end support assembly 94 are located at the bottom of the second securing station and face the second securing 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.

As shown in fig. 3, tank tail end supporting assembly 92 includes a tank tail end supporting cylinder 921, a tank tail end supporting plate 922, and a tank tail end supporting block 923. Jar body tail end support cylinder 921 vertically sets up and fixes the station towards the second, the output of jar body tail end support cylinder 921 sets up jar body tail end backup pad 922, jar body tail end backup pad 922 is located the bottom of the fixed station of second, jar body tail end backup pad 922 includes tail-end connection portion 9221 and tail end supporting part 9222, tail-end connection portion 9221 transversely sets up and the lower extreme is connected on jar body tail end support cylinder 921, tail-end connection portion 9221 sets up the tail end supporting part 9222 of slope and two tail end supporting parts 9222's upper end outwards opens around both ends, tail end supporting part 9222's inboard sets up jar body tail end supporting shoe 923.

Jar body tail end supporting component 92 during operation, jar body tail end support cylinder 921 drive jar body tail end backup pad 922 rebound for two tail end supporting parts 9222 are close to the bottom of jar body around to jar body tail end supporting shoe 923 and the laminating of the bottom of jar body, support and fix a position the bottom of jar body tail end.

As shown in fig. 7, 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. Jar body head end support cylinder 941 sets up along vertically, jar body head end support cylinder 941's output sets up jar body head end backup pad 942, jar body head end backup pad 942 extends to the bottom of the fixed station of second, jar body head end backup pad 942 includes head end connecting portion 9421 and head end support portion 9422, head end connecting portion 9421 extends along the fore-and-aft direction, head end connecting portion 9421 sets up the head end support portion 9422 of slope in both ends around, the upper end of head end support portion 9422 outwards opens, head end support portion 9422's inboard sets up jar body head end supporting shoe 943.

When the tank head end supporting assembly 94 works, the tank head end supporting cylinder 941 drives the tank head end supporting plate 942 to move upwards, so that the front and rear tank head end supporting parts 9422 approach the bottom of the tank body until the tank head end supporting block 943 is attached to the bottom of the tank body, and the bottom of the tank head end is supported and positioned.

The second tank fixing device 8 and the second fitting fixing device 9 are mutually matched to solve the problem that when the gas storage tank is used for welding fittings, one fitting can only be welded once, so that the welding efficiency is low, and because the gas storage tank and the fittings need to be repositioned when different fittings are welded, the gas storage tank and the fittings need to be repeatedly disassembled and assembled, the problem of the welding efficiency is further reduced, the second tank fixing device 8 and the second fitting fixing device 9 have the advantages that the handle on the gas storage tank is completed in one station, the machine plate, the handle and the drainage connecting pipe are installed and positioned, so that the gas storage tank and the fittings only need to be positioned once, and the welding can be completed. Before the gas holder location, take over supporting component 95 through the switch foot earlier and take over the location to the switch foot, then rethread second jar body fixing device 8 transversely sets up the jar body in the station, and the gas holder of being convenient for looks for the reference surface, is favorable to improving the accuracy of accessory location, improves welding quality. Finally, the handle, the machine plate, the handle and the drainage connecting pipe are respectively positioned through the handle positioning assembly 91, the machine plate positioning assembly 93, the handle positioning assembly 96 and the drainage connecting pipe positioning assembly 97, so that the positioning of accessories is realized, the welding of a plurality of accessories can be realized by one station, and the production efficiency is improved.

Claims

1. The welding fixture for the gas storage tank accessory of the piston machine is characterized by comprising a fixture bridge plate (5), wherein a second fixing station is arranged on the fixture bridge plate (5), and the second fixing station is used for fixing the top of a tank body towards the fixture bridge plate (5); a second tank body fixing device (8) and a second accessory fixing device (9) are arranged in the second fixing station;

the second accessory fixing device (9) comprises a handle positioning component (91), a machine plate positioning component (93), a switch foot connecting pipe supporting component (95), a handle positioning component (96) and a drainage connecting pipe positioning component (97); a handle positioning component (91) is arranged on one side of the second tank body fixing device (8), and a machine plate positioning component (93), a switch foot connecting pipe supporting component (95), a handle positioning component (96) and a drainage connecting pipe positioning component (97) are arranged on the other side of the second tank body fixing device (8); the handle positioning assembly (91) is positioned at the left side of the second fixing station and faces the second fixing station; the machine plate positioning assembly (93) and the switch foot connecting pipe supporting assembly (95) are positioned at the bottom of the second fixing station and face the second fixing station; the handle positioning assembly (96) is positioned on the front side of the right part of the second fixing station, and the drainage connecting pipe positioning assembly (97) is positioned above the rear side of the right part of the second fixing station;

the handle positioning assembly (91) is used for supporting and positioning the handle; the machine plate positioning assembly (93) is used for clamping the machine plates on the front side and the rear side; the switch pin connecting pipe supporting component (95) is used for supporting and positioning the switch pin connecting pipe; the handle positioning component (96) is used for positioning the head end of the handle, clamping the middle part of the handle and fixing the tail end of the handle; the drain nipple positioning assembly (97) is used for positioning and clamping the drain nipple on the tank body.

2. The welding fixture for the accessories of the piston machines and the gas storage tanks is characterized in that the handle positioning assembly (91) comprises a handle positioning cylinder (911), a handle bottom pressing plate (912), a handle side limiting plate (913) and a handle end limiting pressing plate (914); the lifting handle positioning cylinder (911) is obliquely arranged and faces to the second fixing station, a lifting handle bottom pressing plate (912) is arranged at the output end of the lifting handle positioning cylinder (911), lifting handle side limiting plates (913) are arranged on the upper side and the lower side of the lifting handle bottom pressing plate (912), the top of each lifting handle side limiting plate (913) is higher than the lifting handle bottom pressing plate (912), and the distance between the two lifting handle side limiting plates (913) is matched with the width of a lifting handle; the front side and the rear side of the handle bottom pressing plate (912) are provided with handle end part limiting pressing plates (914), the two handle end part limiting pressing plates (914) are outwards opened, so that the opening at the upper part is larger than the opening at the lower part, and the size of the opened opening is matched with the inclination angles of the two side edges of the handle; the inner side shape of the upper end of the handle end part limiting pressing plate (914) is an arc shape which is matched with the bending of the handle.

3. The piston machine air storage tank accessory welding fixture as claimed in claim 1, characterized in that the machine plate positioning assembly (93) comprises a machine plate positioning frame (931), a machine plate positioning column (932), a machine plate pressing cylinder (933) and a machine plate pressing plate (934); the machine plate positioning frame (931) is arranged at the bottom of the second fixing station, machine plate supporting platforms (9311) are arranged on the front side and the rear side of the top of the machine plate positioning frame (931), and the machine plate supporting platforms (9311) are used for supporting a machine plate from the lower side; the left side and the right side of the machine plate supporting platform (9311) are respectively provided with machine plate positioning columns (932), the machine plate positioning columns (932) extend along the longitudinal direction, the number of the machine plate positioning columns (932) corresponds to the number of the through holes in the machine plate, and the machine plate positioning columns (932) are used for extending into the through holes of the machine plate to position the machine plate; a machine plate pressing cylinder (933) is arranged on the front side and the rear side of the machine plate positioning frame (931), the machine plate pressing cylinder (933) is arranged upwards along the longitudinal direction, a machine plate pressing plate (934) is arranged at the output end of the machine plate pressing cylinder (933), and the machine plate pressing plate (934) is positioned above the machine plate supporting platform (9311); the bottom surface of the machine plate pressing plate (934) is provided with a groove corresponding to the machine plate positioning column (932).

4. The welding fixture for the accessories of the piston machine air storage tank is characterized in that a switch foot connecting pipe supporting assembly (95) comprises a switch foot connecting pipe supporting seat (951) and a switch foot connecting pipe positioning column (952), the switch foot connecting pipe supporting seat (951) is fixedly arranged, the switch foot connecting pipe positioning column (952) is arranged on the upper end face of the switch foot connecting pipe supporting seat (951), the switch foot connecting pipe positioning column (952) comprises a switch foot connecting pipe supporting part (9521) and a switch foot connecting pipe positioning part (9522), the width of the switch foot connecting pipe supporting part (9521) is larger than the outer diameter of the switch foot connecting pipe, the switch foot connecting pipe positioning part (9522) which extends longitudinally is arranged above the switch foot connecting pipe supporting part (9521), the switch foot connecting pipe positioning part (9522) is cylindrical, and the outer diameter of the cylinder is matched with the inner diameter of the switch foot connecting pipe; the top of the switch pin tube positioning part (9522) is provided with a chamfer.

5. The piston machine air storage tank accessory welding fixture as claimed in claim 1, characterized in that the handle positioning assembly (96) comprises a handle head end positioning seat (961), a handle middle clamping cylinder (962), a handle middle clamping jaw (963) and a handle tail end positioning jaw (964); the handle head end positioning seat (961) is arranged on the clamp bridge plate (5), a handle head end limiting groove (9611) extending in the front-back direction is formed in the upper end face of the handle head end positioning seat (961), and the width of the handle head end limiting groove (9611) is matched with the outer diameter of the handle head end; the handle middle clamping cylinder (962) is arranged at the front side of the second fixing station, the handle middle clamping cylinder (962) is transversely arranged, a pair of handle middle clamping jaws (963) are arranged at the output end of the handle middle clamping cylinder (962), a handle clamping groove is formed in the inner side of each handle middle clamping jaw (963), and each handle middle clamping jaw (963) is used for clamping the middle of a handle; the handle tail end positioning claw (964) is fixedly arranged, and a handle tail end positioning groove (9641) is arranged on the side, facing the second fixing station, of the handle tail end positioning claw (964).

6. The piston machine air storage tank accessory welding fixture as claimed in claim 1, wherein the drain connecting pipe positioning assembly (97) comprises a drain connecting pipe positioning driving part (971), a drain connecting pipe positioning rotating shaft (972), a drain connecting pipe positioning pressure arm (973) and a drain connecting pipe positioning pressure column (974); the drainage connecting pipe positioning driving part (971) is arranged along the longitudinal direction, the output end of the drainage connecting pipe positioning driving part (971) is provided with a drainage connecting pipe positioning rotating shaft (972), the drainage connecting pipe positioning rotating shaft (972) is arranged along the transverse direction, the lower end of a drainage connecting pipe positioning pressure arm (973) is arranged on the drainage connecting pipe positioning rotating shaft (972), the drainage connecting pipe positioning pressure arm (973) is positioned at the rear side of the second fixed station, and the drainage connecting pipe positioning driving part (971) drives the drainage connecting pipe positioning rotating shaft (972) to rotate so that the drainage connecting pipe positioning pressure arm (973) overturns in the front-back direction; the side, facing the second fixed station, of the upper end of the drainage connecting pipe positioning pressure arm (973) is provided with a drainage connecting pipe positioning and pressing column (974), the drainage connecting pipe positioning and pressing column (974) comprises a drainage connecting pipe pressing part (9741) and a drainage connecting pipe positioning part (9742), the width of the drainage connecting pipe pressing part (9741) is larger than the outer diameter of the drainage connecting pipe, and the drainage connecting pipe pressing part (9741) is used for pressing the top of the drainage connecting pipe; a drainage connecting pipe positioning part (9742) is arranged below the drainage connecting pipe pressing part (9741), the drainage connecting pipe positioning part (9742) is cylindrical, and the diameter of the cylinder is adapted to the inner diameter of the drainage connecting pipe; the bottom of the drainage connecting pipe positioning part (9742) is provided with a chamfer.

7. The piston machine air storage tank accessory welding fixture as claimed in claim 1, characterized in that the second accessory fixing device (9) further comprises a tank tail end support assembly (92) and a tank head end support assembly (94); the tank tail end supporting assembly (92) is arranged on one side of the handle positioning assembly (91); the tank head end supporting component (94) is arranged on one side of the plate positioning component (93); the tank tail end supporting assembly (92) and the tank head end supporting assembly (94) are positioned at the bottom of the second fixing station and face the second fixing station; the tank tail end supporting assembly (92) is used for supporting and positioning the tail end of the tank; a tank head end support assembly (94) is used to support and position the head end of the tank.

8. The welding fixture for accessories of piston machines and gas storage tanks according to claim 7, wherein the tank tail end supporting assembly (92) comprises a tank tail end supporting cylinder (921), a tank tail end supporting plate (922) and a tank tail end supporting block (923); the tank tail end supporting cylinder (921) is longitudinally arranged and faces to a second fixing station, the output end of the tank tail end supporting cylinder (921) is provided with a tank tail end supporting plate (922), the tank tail end supporting plate (922) is located at the bottom of the second fixing station, the tank tail end supporting plate (922) comprises a tail end connecting part (9221) and tail end supporting parts (9222), the tail end connecting part (9221) is transversely arranged, the lower end of the tail end connecting part is connected to the tank tail end supporting cylinder (921), the front end and the rear end of the tail end connecting part (9221) are provided with inclined tail end supporting parts (9222), the upper ends of the two tail end supporting parts (9222) are outwards opened, and the tank tail end supporting block (923) is arranged on the inner side of the tail end supporting part (9222);

the tank head end supporting assembly (94) comprises a tank head end supporting cylinder (941), a tank head end supporting plate (942) and a tank head end supporting block (943); jar body head end support cylinder (941) is along vertically setting up, the output of jar body head end support cylinder (941) sets up jar body head end backup pad (942), jar body head end backup pad (942) extends to the bottom of the fixed station of second, jar body head end backup pad (942) is including head end connecting portion (9421) and head end support portion (9422), head end connecting portion (9421) extend along the fore-and-aft direction, head end support portion (9422) of slope is set up at the front and back both ends of head end connecting portion (9421), the upper end of head end support portion (9422) outwards opens, the inboard of head end support portion (9422) sets up jar body head end supporting shoe (943).

9. The welding fixture for accessories of the air storage tanks of the piston machines as claimed in claim 1, wherein the second tank fixing device (8) comprises 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 positioning block (61) on the side wall of the tank body is arc-shaped which is adaptive to the radian of the side wall of the tank body; a tank body clamping cylinder (62) is arranged below the tank body side wall positioning block (61), a front output end and a rear output end are arranged on the tank body clamping cylinder (62), tank body clamping arms (63) are arranged on the two output ends, the front tank body clamping arm and the rear tank body clamping arm (63) are arranged oppositely, and the tank body side wall positioning block (61) is positioned between the two tank body clamping arms (63); the tank body clamping arm (63) comprises an installation part (631) and a clamping part (632), the lower end of the installation part (631) is arranged on the tank body clamping cylinder (62), the clamping part (632) is arranged at the upper end of the installation part (631), the clamping part (632) comprises at least two clamping strips (6321) which are arranged left and right, the clamping strips (6321) extend longitudinally, the upper end and the lower end of each clamping strip (6321) are bent towards the inner side of the clamping direction, and tank body clamping blocks (64) are arranged at the upper end and the lower end.

10. A welding device for accessories of a gas storage tank of a piston machine is characterized by comprising the clamp, a welding robot and a positioner, wherein two ends of a bridge plate (5) of the clamp are arranged on the positioner; the welding robot is located one side of machine of shifting.