Automatic electric arc welding tool and method for gas cylinder frame for new energy automobile

Abstract

The invention discloses an automatic electric arc welding tool and method for a gas cylinder frame for a new energy automobile, and relates to the technical field of gas cylinder frame welding. The device comprises a supporting base, a frame bottom plate and frame columns, and further comprises a welding table arranged on the supporting base, and a positioning assembly used for positioning the frame bottom plate and an adsorption assembly used for achieving impurity cleaning and cooling are arranged on the welding table; the welding unit comprises a pushing assembly, a welding assembly and a polishing assembly; the displacement unit is arranged on the supporting base and comprises a driving assembly, a limiting assembly and a linkage assembly. The welding device has the advantages that welding of a plurality of frame columns can be rapidly achieved without adjusting the position of a gas cylinder frame during welding, the welding efficiency is higher, meanwhile, an automatic welding mode of surrounding type circumferential welding is adopted, dead-corner-free welding of the cylindrical frame columns can be achieved, the welding precision is higher, and the welding efficiency is higher. And welding burrs can be polished and removed after welding, and the welding face is smoother and more attractive.

Description

Technical Field

[0001] The present invention relates to the technical field of gas cylinder frame welding, and in particular to automated arc welding tooling and a method for gas cylinder frames for new energy vehicles. Background Art

[0002] New energy vehicles refer to new types of vehicles that use non-petroleum fuels such as natural gas and new energy batteries as their driving source. The gas cylinders used to store gas fuel in new energy vehicles are usually placed in the gas cylinder frames. The gas cylinder frames are usually automatically welded by automated arc welding, and welding tools are usually required to assist in welding.

[0003] Existing welding tooling adopts a variety of methods to achieve the welding of gas cylinder frames, such as a welding platform for a CNG gas cylinder frame sub-beam with publication number CN221676330U, which includes a left support plate, a right support plate, a movable plate and a placement table, wherein the lower end of the left support plate is fixedly connected to a base, wherein the left support plate is located at the upper left end of the base, the upper right end of the base is fixedly connected to the right support plate, a movable plate is arranged between the left support plate and the right support plate, the upper end of the movable plate is movably connected to the placement table, a rotating motor is arranged at the lower end of the movable plate, and a rotating shaft is arranged at the upper end of the rotating motor, wherein the rotating shaft passes through the movable plate, and the upper end of the rotating shaft is fixedly connected to the placement table.

[0004] Due to the large number of frame columns on the gas cylinder frame, the existing welding tooling needs to weld each frame column in sequence during welding, and the position of the arc welding gun needs to be adjusted for each welding, and the efficiency of arc welding is low. For example, the above-mentioned referenced prior art uses a servo motor and a rotary motor to achieve the position movement of the frame, thereby achieving multi-position welding. However, since the frame column is circular as a whole, the operator needs to rotate around the frame column to change the position of the arc welding gun during welding, so as to achieve comprehensive surround automated arc welding. This method has low welding efficiency, and the welding burrs generated during arc welding cannot be cleaned in real time. The flatness of the welding surface after welding is poor, and the welding surface is not smooth and beautiful, which has certain limitations.

[0005] Therefore, it is urgent to design automated arc welding tooling and methods for gas cylinder frames for new energy vehicles to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an automated arc welding tool and method for a gas cylinder frame for new energy vehicles, which solves the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automated arc welding tool for a gas cylinder frame for a new energy vehicle, comprising a support base, a frame bottom plate and a frame column to be welded, and also comprising:

[0008] The welding table is arranged on the supporting base and used for placing and welding the frame bottom plate. The welding table is provided with a positioning component for positioning the frame bottom plate and an adsorption component for cleaning impurities and cooling.

[0009] A welding unit, used to stably weld the frame column to the frame bottom plate and to grind and clean the welding part after welding is completed, including a pushing assembly, a welding assembly for welding and a grinding assembly for grinding;

[0010] The displacement unit is arranged on the supporting base and is used to realize the horizontal position adjustment of the welding unit and realize the continuous welding of multiple frame columns. It includes a driving component, a limiting component and a linkage component. The limiting component is used to realize the overall positioning of the welding unit, the driving component is used to realize the position adjustment of the welding unit, and the linkage component cooperates with the welding component and the grinding component to realize comprehensive welding and grinding.

[0011] Preferably, the positioning assembly includes two hydraulic positioning rods fixedly installed at the lower part of the welding table, and positioning clamps are fixedly installed on the driving ends of the two hydraulic positioning rods, and two sliding grooves matching with the corresponding positioning clamps are provided on the welding table. The two positioning clamps move under the drive of the corresponding hydraulic positioning rods and squeeze and position the frame bottom plate with the cooperation of the welding table.

[0012] Preferably, the adsorption assembly includes two dust removal fans fixedly installed on both sides of the welding table, two dust removal boxes are fixedly installed in the welding table, and the two dust removal boxes are connected to the air inlet ends of the corresponding dust removal fans, and multiple suction holes are provided on the two dust removal boxes.

[0013] Preferably, the driving assembly includes a servo motor fixedly installed in a supporting base, a mounting plate fixedly installed in the supporting base, a driven roller rotatably installed on the mounting plate, a driving gear fixedly installed between the driven roller and the driving end of the servo motor, and a transmission toothed belt meshing with the two driving gears.

[0014] Preferably, the limiting assembly includes a displacement plate slidably mounted on the transmission toothed belt, a support frame is fixedly mounted on the displacement plate, a limiting slide rod is fixedly mounted on the displacement plate, and a limiting slide groove matching the limiting slide rod is opened on the welding table, and a locking mechanism is installed between the displacement plate and the transmission toothed belt.

[0015] Preferably, the locking mechanism comprises a mounting folding plate fixedly mounted on the displacement plate, an electric locking pin cooperating with the displacement plate is arranged on the mounting folding plate, and a plurality of positioning holes cooperating with the electric locking pin are opened on the transmission toothed belt.

[0016] Preferably, the linkage assembly includes a plurality of linkage rollers rotatably mounted on a mounting plate, each linkage roller is fixedly mounted with a driven gear, each driven gear is meshed with a transmission belt, and each linkage roller is fixedly mounted with a driving gear disc.

[0017] Preferably, the pushing assembly includes a hydraulic propulsion rod fixedly mounted on a support frame, a fixed frame fixedly mounted on the driving end of the hydraulic propulsion rod, a sleeve cylinder rotatably mounted in the fixed frame, and the sleeve cylinder cooperates with the frame column, a driving gear ring is fixedly mounted on the outer side of the sleeve cylinder, and the driving gear ring is meshed with the driving gear disc.

[0018] Preferably, the welding assembly comprises a one-way bearing 1 arranged on the sleeve tube, and the one-way bearing 1 rotates under the positive rotation drive of the sleeve tube, and a plurality of welding guns for welding are arranged on the one-way bearing 1;

[0019] The grinding assembly comprises a one-way bearing 2 arranged on the sleeve tube, and the one-way bearing 2 rotates under the reverse drive of the sleeve tube, and a grinding ring for grinding the welding part is installed on the one-way bearing 2 through a plurality of connecting rods.

[0020] The automated arc welding method for the gas cylinder frame for new energy vehicles, and the automated arc welding tooling for the gas cylinder frame for new energy vehicles, comprise the following steps:

[0021] S1. When welding the frame column, first place the frame bottom plate vertically on the welding table, and start the positioning assembly to squeeze and position the frame bottom plate;

[0022] S2, then put the frame column to be welded in the push assembly in the welding unit for preliminary positioning, and then start the driving assembly in the displacement unit to drive the welding unit to adjust the position until the frame column moves to the position to be welded on the frame bottom plate;

[0023] S3. After the frame column is adjusted, the limiting assembly is started to fix the position of the welding unit, and then the pushing assembly is started to drive the frame column to move so that it is pressed and fitted with the frame bottom plate;

[0024] S4, positively start the driving assembly and the linkage assembly in the displacement unit, and realize the positive start of the welding assembly under the cooperation of positive rotation. The welding assembly starts to weld the frame column to the frame bottom plate, and the welding process is completed;

[0025] S5. After welding is completed, the push assembly is started to drive the grinding assembly to move to the welding position on the frame column, and then the driving assembly and the linkage assembly are started in reverse, and the reverse start of the grinding assembly is realized under the cooperation of reverse rotation. When the grinding assembly is started, the welding burrs between the frame column and the frame bottom plate can be ground and removed;

[0026] S6. During the welding and grinding process, the adsorption component on the welding table will be started synchronously to absorb the debris generated during the welding and grinding process, and promote the air flow on the welding table to cool down, thereby reducing the working temperature during welding and grinding.

[0027] The present invention provides an automated arc welding tool and method for a gas cylinder frame for a new energy vehicle. It has the following beneficial effects:

[0028] 1. When welding frame columns, this welding fixture can quickly position the frame bottom plate by clamping the frame bottom plate on the side, which can effectively improve the stability of welding. At the same time, the sequential welding of multiple frame columns can be quickly achieved during side positioning, which has higher welding efficiency.

[0029] 2. When welding frame columns, this welding tool adopts a servo motor to drive the transmission toothed belt to drive the overall movement of the welding unit, which has higher movement stability and can flexibly change the position between the welding unit and the frame bottom plate, thereby quickly realizing the welding and installation of multiple frame columns, which can further improve the welding efficiency.

[0030] 3. When welding frame columns, this welding fixture can realize both the sleeve positioning and the position movement of the frame columns through the cooperation of the hydraulic propulsion rod and the fixed sleeve cylinder, thereby driving the frame columns to fit quickly and stably with the frame bottom plate and improving the accuracy of the welding position.

[0031] 4. When welding frame columns, this welding tool can achieve efficient and comprehensive surrounding welding of cylindrical frame columns by adopting a surrounding welding method of multiple welding guns. The welding efficiency is higher and there will be no welding dead angles. At the same time, after welding, the burrs generated by welding can be removed simultaneously through the cooperation of the rotating grinding ring, and the flatness and aesthetics after welding are better.

[0032] To sum up, the present invention can quickly realize the welding of multiple frame columns without adjusting the position of the gas cylinder frame during welding, and the welding efficiency is higher. At the same time, the automated welding method of circumferential welding is adopted, which can realize the dead-angle welding of cylindrical frame columns with higher welding accuracy. After welding, the welding burrs can be polished and removed, and the welding surface is smoother and more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0034] Figure 1 This is a schematic diagram of the structure of the automated arc welding tooling for the gas cylinder frame for new energy vehicles proposed by the present invention;

[0035] Figure 2 for Figure 1 A front view of

[0036] Figure 3 for Figure 1 Schematic diagram of the structure after removing the supporting base;

[0037] Figure 4 for Figure 3 Schematic diagram of the structure after removing the frame bottom plate;

[0038] Figure 5 for Figure 2 The structural front view of the middle welding table and frame bottom plate;

[0039] Figure 6 for Figure 4 The structural diagram of the welding table;

[0040] Figure 7 for Figure 5 Schematic diagram of the three-dimensional structure of part of the structure on the middle welding table;

[0041] Figure 8 for Figure 7 Schematic diagram of the structure of the hydraulic positioning rod;

[0042] Fig. 9 for Figure 7 Schematic diagram of the structure of the dust removal fan;

[0043] Fig.10 for Figure 3 Schematic diagram of the structure of the servo motor and hydraulic propulsion rod;

[0044] Fig.11 for Fig.10 Schematic diagram of the structure of the hydraulic propulsion rod and part of the transmission belt;

[0045] Fig.12 for Fig.11 Schematic diagram of the structure of the A part;

[0046] Fig.13 for Fig.11 Schematic diagram of the structure of the hydraulic propulsion rod and the sleeve cylinder;

[0047] Fig.14 for Fig.13 Schematic diagram of the structural decomposition.

[0048] In the figure: 1 supporting base, 2 welding table, 3 frame bottom plate, 4 frame column, 5 transmission toothed belt, 6 dust removal fan, 7 servo motor, 8 driving gear, 9 driven gear, 10 positioning clamp, 11 hydraulic propulsion rod, 12 hydraulic positioning rod, 13 driving gear disc, 14 limiting slide groove, 15 dust removal box, 16 moving opening, 17 suction hole, 18 mounting plate, 19 linkage roller, 20 driven roller, 21 displacement plate, 22 positioning hole, 23 supporting frame, 24 sleeve tube, 25 fixing frame, 26 limiting slide rod, 27 electric locking pin, 28 driving gear ring, 29 welding gun, 30 grinding ring, 31 one-way bearing 1, 32 one-way bearing 2, 33 mounting folding plate, 34 sliding groove. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0050] Example 1: Reference Figure 1-Figure 8 The automatic arc welding tooling for the gas cylinder frame for new energy vehicles comprises a supporting base 1, a frame bottom plate 3 and a frame column 4 to be welded. The frame bottom plate 3 is the bottom plate at the bottom of the gas cylinder frame. A plurality of frame columns 4 are welded at a fixed distance thereon to form an integral gas cylinder frame, which can be used for placing gas cylinders for new energy vehicles.

[0051] This welding tool also includes:

[0052] The welding platform 2 is arranged on the supporting base 1 and is used to realize the placement and welding bearing of the frame bottom plate 3. The welding platform 2 is provided with a positioning assembly for positioning the frame bottom plate 3. The positioning assembly includes two hydraulic positioning rods 12 fixedly installed at the lower part of the welding platform 2. The driving ends of the two hydraulic positioning rods 12 are fixedly installed with positioning clamps 10, and the welding platform 2 is provided with two sliding grooves 34 matched with the corresponding positioning clamps 10;

[0053] The two positioning clamps 10 move under the drive of the corresponding hydraulic positioning rods 12, and squeeze and position the frame base plate 3 with the cooperation of the welding table 2. When welding the frame columns 4 on the frame base plate 3, first place the frame base plate 3 vertically on the welding table 2, and make the bottom of the frame base plate 3 fit with the side wall of the welding table 2, and then start the two hydraulic positioning rods 12 to drive the two positioning clamps 10 to move until the two positioning clamps 10 move to squeeze and fit with the frame base plate 3. At this time, the two positioning clamps 10 cooperate with the welding table 2 to stably clamp and position the frame base plate 3, so that it will not shake during welding, thereby improving its stability during welding and making disassembly after welding more convenient.

[0054] In a further embodiment, a welding unit is used to stably weld the frame column 4 to the frame base plate 3, and to grind and clean the welding parts after welding is completed, thereby realizing full circumferential welding of the cylindrical frame column 4 without adjusting the welding position, with higher welding efficiency and no welding dead angles. Welding burrs can also be ground and cleaned after welding, and the welding parts are smoother and more beautiful.

[0055] The displacement unit is arranged on the support base 1, and is used to adjust the horizontal position of the welding unit to achieve continuous welding of multiple frame columns 4. It is used to adjust the position of the welding unit after each welding is completed, so that the welding unit moves to the next position on the frame base plate 3, and achieves welding of the frame column 4 at the next position, which can effectively improve the welding efficiency.

[0056] Example 2: Reference Figure 3-Figure 6 as well as Figure 10-12 The difference between this embodiment and the first embodiment is that the displacement unit includes a driving component, a limiting component and a linkage component, wherein the limiting component is used to realize the overall positioning of the welding unit, the driving component is used to realize the position adjustment of the welding unit, and the linkage component cooperates with the welding component and the grinding component to realize comprehensive welding and grinding;

[0057] The driving assembly includes a servo motor 7 fixedly mounted in the support base 1, a mounting plate 18 fixedly mounted in the support base 1, a driven roller 20 rotatably mounted on the mounting plate 18, a driving gear 8 fixedly mounted between the driven roller 20 and the driving end of the servo motor 7, and a transmission toothed belt 5 meshingly mounted between the two driving gears 8;

[0058] The servo motor 7 drives the driving gear 8 on its driving end to rotate. The rotation of the driving gear 8 will drive the transmission toothed belt 5 to transmit under the cooperation of the driven roller 20 and the driving gear 8 thereon, so that the servo motor 7 is started to drive the transmission toothed belt 5 to rotate, and the servo motor 7 drives the transmission toothed belt 5 to rotate forward when it rotates forward, and drives the transmission toothed belt 5 to reverse when the servo motor 7 reverses.

[0059] In a further embodiment, the limit assembly includes a displacement plate 21 slidably mounted on the transmission toothed belt 5, a support frame 23 is fixedly mounted on the displacement plate 21, a clamping mechanism is installed between the displacement plate 21 and the transmission toothed belt 5, the clamping mechanism includes a mounting folding plate 33 fixedly mounted on the displacement plate 21, an electric locking pin 27 matching the displacement plate 21 is provided on the mounting folding plate 33, and a plurality of positioning holes 22 matching the electric locking pin 27 are opened on the transmission toothed belt 5;

[0060] When the electric locking pin 27 is started and locked into the positioning hole 22 at the corresponding position on the transmission toothed belt 5, the positioning between the displacement plate 21 and the transmission toothed belt 5 is completed. At this time, the transmission toothed belt 5 will drive the displacement plate 21 and the support frame 23 thereon to move horizontally regardless of whether it is forward transmission or reverse transmission. When the electric locking pin 27 is unlocked from the transmission toothed belt 5, at this time, since the displacement plate 21 and the transmission toothed belt 5 are in sliding connection, the forward and reverse transmission of the transmission toothed belt 5 will not drive the displacement plate 21 to move;

[0061] A limiting slide bar 26 is fixedly installed on the displacement plate 21, and a limiting slide groove 14 cooperating with the limiting slide bar 26 is provided on the welding table 2. The cooperation between the limiting slide bar 26 and the limiting slide groove 14 plays the role of limiting the displacement plate 21, so that the displacement plate 21 can only slide horizontally without other reverse sliding and deviation.

[0062] In a further embodiment, the linkage assembly includes a plurality of linkage rollers 19 rotatably mounted on a mounting plate 18, a driven gear 9 being fixedly mounted on each linkage roller 19, and each driven gear 9 being meshed with a transmission toothed belt 5, and a driving sprocket 13 being fixedly mounted on each linkage roller 19, and when the transmission toothed belt 5 is transmitted, the driven gear 9 meshed therewith will be driven to rotate, and when the driven gear 9 rotates, the linkage roller 19 will be driven to rotate, and when the linkage roller 19 is rotated, the driving sprocket 13 thereon will be driven to rotate, so that when the transmission toothed belt 5 is transmitted, multiple driving sprockets 13 will be driven to rotate together synchronously.

[0063] Example 3: Reference Figure 9-14 , the technical solution of this embodiment is different from that of the second embodiment in that: the welding unit includes a pushing component, a welding component for realizing welding and a grinding component for grinding;

[0064] The push assembly includes a hydraulic propulsion rod 11 fixedly mounted on a support frame 23, a fixing frame 25 fixedly mounted on the driving end of the hydraulic propulsion rod 11, a sleeve cylinder 24 rotatably mounted in the fixing frame 25, and the sleeve cylinder 24 cooperates with the frame column 4;

[0065] The sleeve tube 24 is used to sleeve the frame column 4 to be welded, so as to realize the sleeve positioning of the frame column 4. When the hydraulic propulsion rod 11 is started, it will drive the fixing frame 25 to move horizontally, thereby driving the sleeve tube 24 to move horizontally through the fixing frame 25. When the sleeve tube 24 moves, it will drive the frame column 4 to move, so as to adjust the position of the frame column 4 so that the frame column 4 fits with the frame bottom plate 3, thereby completing the position movement of the frame column 4, improving the accuracy of the welding position, and completing the welding preparation process.

[0066] A driving gear ring 28 is fixedly mounted on the outer side of the sleeve 24, and the driving gear ring 28 is meshed with the driving gear disc 13. A plurality of sliding grooves 34 cooperating with the driving gear ring 28 are provided on the welding table 2. The sliding grooves 34 are used to cooperate with the driving gear ring 28 so that the driving gear ring 28 can slide normally on the upper part of the welding table 2 without jamming.

[0067] When welding the frame column 4, the fixing frame 25 is driven to move by the hydraulic propulsion rod 11. The movement of the fixing frame 25 will drive the sleeve tube 24 and the driving gear ring 28 thereon to move. At the same time, the angle of the driving gear disc 13 is adjusted through the linkage assembly so that the driving gear ring 28 can be moved to fit the driving gear disc 13. At this time, when the driving gear disc 13 rotates, it will drive the driving gear ring 28 to rotate.

[0068] In a further embodiment, the welding assembly includes a one-way bearing 31 disposed on the sleeve 24, and the one-way bearing 31 rotates under the positive rotation drive of the sleeve 24, and a plurality of welding guns 29 for welding are disposed on the one-way bearing 31;

[0069] The welding gun 29 is an automatic arc welding device commonly used in the prior art. When working, the welding part and the welding rod are brought close to each other to generate an arc, and the heat generated by the arc heat release is used to melt the welding rod and the frame column 4 and the frame bottom plate 3, and a welding seam is formed after condensation, thereby completing the automatic welding. This welding method has the advantages of high efficiency and stability, and can quickly realize the surrounding automatic arc welding between the frame column 4 and the frame bottom plate 3;

[0070] When the frame column 4 is positioned, multiple welding guns 29 can be started to weld the frame column 4 and the frame base plate 3. While welding, start the servo motor 7 to drive slowly in the forward direction, drive the transmission belt 5 to drive forward, thereby driving the driving gear disc 13 to rotate forward through the linkage assembly, thereby driving the driving gear ring 28 engaged therewith to rotate forward, and the driving gear ring 28 will drive the sleeve tube 24 to rotate slowly in the forward direction when the driving gear ring 28 rotates forward, and the sleeve tube 24 will cooperate with the one-way bearing 31 when the sleeve tube 24 rotates slowly in the forward direction, thereby driving the one-way bearing 31 to rotate, and the rotation of the one-way bearing 31 will drive the multiple welding guns 29 thereon to rotate, so that the welding gun 29 can be realized to rotate slowly and synchronously while welding, thereby performing circumferential welding on the frame column 4, which can effectively increase the range of welding, improve the comprehensiveness of welding, and avoid welding dead angles.

[0071] The grinding assembly includes a one-way bearing 32 disposed on the sleeve 24, and the one-way bearing 32 rotates under the reverse drive of the sleeve 24, and a grinding ring 30 for grinding the welding part is installed on the one-way bearing 32 through a plurality of connecting rods;

[0072] After welding is completed, the hydraulic push rod 11 can be started to drive the grinding ring 30 forward, so that the grinding ring 30 is sleeved and fits with the frame base plate 3, that is, the grinding ring 30 is moved to fit the welding part between the frame base plate 3 and the frame column 4, and then the servo motor 7 is started for reverse driving. By the same token, the servo motor 7 drive will drive the sleeve tube 24 to rotate in the opposite direction. When the sleeve tube 24 rotates in the opposite direction, it will cooperate with the one-way bearing 2 32, thereby driving the one-way bearing 2 32 to rotate. The rotation of the one-way bearing 2 32 will drive the grinding ring 30 thereon to rotate. The rotation of the grinding ring 30 will rotate and grind the burrs on the welding part, so that the burrs generated by the welding can be removed synchronously, the flatness and aesthetics after welding are better, and the welding effect is better.

[0073] Since the frame column 4 is sleeved and installed in the sleeve tube 24, the rotation of the sleeve tube 24 will not drive the frame column 4 to rotate, and since the frame column 4 is tightly fitted on the frame base plate 3 after positioning, when the sleeve tube 24 moves and drives the grinding ring 30 to move, the frame column 4 is blocked by the frame base plate 3 and will not move. Therefore, the rotation or movement of the sleeve tube 24 will not affect the welding of the frame column 4.

[0074] The welding table 2 is provided with an adsorption component for cleaning impurities and cooling. The adsorption component includes two dust removal fans 6 fixedly installed on both sides of the welding table 2. Two dust removal boxes 15 are fixedly installed in the welding table 2. Both dust removal boxes 15 are connected to the air inlet end of the corresponding dust removal fans 6. Both dust removal boxes 15 are provided with a plurality of air suction holes 17.

[0075] While welding and grinding are being performed, two dust removal fans 6 are started to suck air into the welding table 2 through two dust removal boxes 15, which can not only remove impurities and debris generated during welding and grinding while sucking air, thereby preventing impurities from accumulating and affecting the welding and grinding effects, but also increase the air flow rate in the welding table 2 during welding, thereby removing the heat generated during welding and grinding, thereby playing a role in cooling;

[0076] The impurities sucked by the dust removal fan 6 will accumulate in the dust removal box 15, and the dust removal box 15 can be opened regularly to take out the impurities for cleaning.

[0077] After the welding of a single frame column 4 is completed, the hydraulic propulsion rod 11 can be started to drive the sleeve tube 24 and its upper structure to move back and away from the welded frame column 4, and the new frame column 4 can be inserted into the sleeve tube 24, and the displacement plate 21 can be repositioned through the locking mechanism, and the servo motor 7 can be started to drive the transmission toothed belt 5. At this time, the transmission toothed belt 5 will drive the welding unit to move as a whole, and the welding unit can be driven to move and adjust to the next welding position on the frame bottom plate 3. Repeat the above welding and grinding steps again, and the welding work of the new frame column 4 can be carried out;

[0078] The servo motor 7 drives the transmission toothed belt 5 to drive the overall movement of the welding unit, which has higher movement stability and can flexibly change the position between the welding unit and the frame base plate 3, thereby quickly realizing the welding installation of multiple frame columns 4, which can further improve the welding efficiency.

[0079] The embodiment of the present invention also provides an automated arc welding method for a gas cylinder frame for a new energy vehicle, and an automated arc welding tool for the above-mentioned gas cylinder frame for a new energy vehicle, comprising the following steps:

[0080] S1. When welding the frame column 4, first place the frame bottom plate 3 vertically on the welding table 2, and start the positioning assembly to squeeze and position the frame bottom plate 3;

[0081] S2, the frame column 4 to be welded is then sleeved in the push assembly in the welding unit for preliminary positioning, and then the driving assembly in the displacement unit is started to drive the welding unit to adjust the position until the frame column 4 moves to the position to be welded on the frame bottom plate 3;

[0082] S3. After the frame column 4 is adjusted, the limiting assembly is started to fix the position of the welding unit, and then the pushing assembly is started to drive the frame column 4 to move so that it is pressed and fitted with the frame bottom plate 3;

[0083] S4, positively start the driving assembly and the linkage assembly in the displacement unit, and realize the positive start of the welding assembly under the cooperation of the positive rotation, and the welding assembly starts to weld the frame column 4 to the frame bottom plate 3, completing the arc welding process;

[0084] S5. After the automated arc welding is completed, the push assembly is started to drive the grinding assembly to move to the welding position on the frame column 4, and then the driving assembly and the linkage assembly are started in reverse, and the reverse start of the grinding assembly is realized under the cooperation of reverse rotation. When the grinding assembly is started, the welding burrs between the frame column 4 and the frame bottom plate 3 can be ground and removed;

[0085] S6. During the welding and grinding process, the adsorption component on the welding table 2 will be started synchronously to absorb the debris generated during the welding and grinding process, and promote the air flow on the welding table 2 to cool down, thereby reducing the working temperature during welding and grinding.

[0086] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automated arc welding tool for a gas cylinder frame for a new energy vehicle, comprising a support base (1), a frame bottom plate (3) and a frame column (4) to be welded, characterized in that: Also includes: The welding platform (2) is arranged on the supporting base (1) and is used to place and weld the frame bottom plate (3). The welding platform (2) is provided with a positioning component for positioning the frame bottom plate (3) and an adsorption component for cleaning impurities and cooling the frame bottom plate; A welding unit, used for stably welding the frame column (4) to the frame bottom plate (3), and for grinding and cleaning the welding part after welding is completed, comprising a pushing component, a welding component for welding, and a grinding component for grinding; The displacement unit is arranged on the support base (1) and is used to adjust the horizontal position of the welding unit to achieve continuous welding of multiple frame columns (4). The displacement unit comprises a driving component, a limiting component and a linkage component, wherein the limiting component is used to achieve the overall positioning of the welding unit, and the driving component is used to adjust the position of the welding unit to achieve comprehensive welding and grinding of the frame columns (4).

2. The automated arc welding tool for the gas cylinder frame for new energy vehicles according to claim 1, characterized in that: The positioning assembly comprises two hydraulic positioning rods (12) fixedly mounted on the lower part of the welding table (2), positioning clamps (10) being fixedly mounted on the driving ends of the two hydraulic positioning rods (12), and two sliding grooves (34) cooperating with the corresponding positioning clamps (10) are provided on the welding table (2), the two positioning clamps (10) move under the drive of the corresponding hydraulic positioning rods (12), and squeeze and position the frame bottom plate (3) under the cooperation of the welding table (2).

3. The automated arc welding tool for the gas cylinder frame for new energy vehicles according to claim 1, characterized in that: The adsorption assembly comprises two dust removal fans (6) fixedly mounted on two sides of the welding table (2), two dust removal boxes (15) fixedly mounted inside the welding table (2), and both dust removal boxes (15) are connected to the air inlet ends of the corresponding dust removal fans (6), and both dust removal boxes (15) are provided with a plurality of air suction holes (17).

4. The automated arc welding tool for the gas cylinder frame for new energy vehicles according to claim 1, characterized in that: The driving assembly comprises a servo motor (7) fixedly mounted in a support base (1), a mounting plate (18) fixedly mounted in the support base (1), a driven roller (20) rotatably mounted on the mounting plate (18), a driving gear (8) fixedly mounted between the driven roller (20) and the driving end of the servo motor (7), and a transmission toothed belt (5) meshingly mounted between the two driving gears (8).

5. The automated arc welding tool for the gas cylinder frame for new energy vehicles according to claim 4, characterized in that: The limiting assembly comprises a displacement plate (21) slidably mounted on a transmission toothed belt (5), a support frame (23) fixedly mounted on the displacement plate (21), a limiting sliding rod (26) fixedly mounted on the displacement plate (21), and a limiting sliding groove (14) matched with the limiting sliding rod (26) is provided on the welding table (2), and a clamping mechanism is installed between the displacement plate (21) and the transmission toothed belt (5).

6. The automated arc welding tool for the gas cylinder frame for new energy vehicles according to claim 5, characterized in that: The locking mechanism comprises a mounting folding plate (33) fixedly mounted on the displacement plate (21), an electric locking pin (27) matching with the displacement plate (21) being arranged on the mounting folding plate (33), and a plurality of positioning holes (22) matching with the electric locking pin (27) being opened on the transmission toothed belt (5).

7. The automated arc welding tool for the gas cylinder frame for new energy vehicles according to claim 5, characterized in that: The linkage assembly comprises a plurality of linkage rollers (19) rotatably mounted on a mounting plate (18), a driven gear (9) being fixedly mounted on each linkage roller (19), each driven gear (9) being meshed with a transmission toothed belt (5), and a driving toothed disc (13) being fixedly mounted on each linkage roller (19).

8. The automated arc welding tool for the gas cylinder frame for new energy vehicles according to claim 7, characterized in that: The pushing assembly comprises a hydraulic propulsion rod (11) fixedly mounted on a support frame (23); a fixing frame (25) is fixedly mounted on the driving end of the hydraulic propulsion rod (11); a sleeve cylinder (24) is rotatably mounted in the fixing frame (25), and the sleeve cylinder (24) cooperates with the frame column (4); a driving gear ring (28) is fixedly mounted on the outer side of the sleeve cylinder (24), and the driving gear ring (28) is meshed with the driving gear disc (13).

9. The automated arc welding tool for the gas cylinder frame for new energy vehicles according to claim 8, characterized in that: The welding assembly comprises a one-way bearing (31) arranged on the sleeve cylinder (24), and the one-way bearing (31) rotates under the positive rotation drive of the sleeve cylinder (24), and a plurality of welding guns (29) for welding are arranged on the one-way bearing (31); The grinding assembly comprises a second one-way bearing (32) arranged on a sleeve tube (24), and the second one-way bearing (32) rotates under the reverse drive of the sleeve tube (24), and a grinding ring (30) for grinding a welding part is installed on the second one-way bearing (32) through a plurality of connecting rods.

10. An automated arc welding method for a gas cylinder frame for a new energy vehicle, used for the automated arc welding of a gas cylinder frame for a new energy vehicle as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. When welding the frame column (4), first place the frame bottom plate (3) vertically on the welding table (2), and start the positioning assembly to squeeze and position the frame bottom plate (3); S2, the frame column (4) to be welded is then sleeved in the push assembly in the welding unit for preliminary positioning, and then the driving assembly in the displacement unit is started to drive the welding unit to adjust the position until the frame column (4) moves to the position to be welded on the frame bottom plate (3); S3. After the frame column (4) is adjusted, the limiting assembly is started to fix the position of the welding unit, and then the pushing assembly is started to drive the frame column (4) to move so that it is pressed and fitted with the frame bottom plate (3); S4, positively starting the driving component and the linkage component in the displacement unit, realizing positive starting of the welding component under the cooperation of positive rotation, and the welding component starts to weld the frame column (4) to the frame bottom plate (3), completing the process of automated arc welding; S5. After arc welding is completed, the push assembly is started to drive the grinding assembly to move to the welding position on the frame column (4), and then the driving assembly and the linkage assembly are started in reverse, and the grinding assembly is started in reverse with the cooperation of reverse rotation. The grinding assembly is started to grind and remove the welding burrs between the frame column (4) and the frame bottom plate (3); S6. During the arc welding and grinding process, the adsorption component on the welding table (2) will be started synchronously to absorb the debris generated during the arc welding and grinding process, and promote the air flow on the welding table (2) to cool down, thereby reducing the working temperature during arc welding and grinding.

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