Iron sheet barrel welding and fixing device

Abstract

The invention relates to the technical field of iron sheet barrel welding, and discloses an iron sheet barrel welding fixing device which comprises an inner welding box and a limiting groove formed in the inner welding box, a support is installed at one end of the inner welding box, and a driving device is installed at one end of the support and used for driving an iron sheet to move. A sliding rail is mounted at the lower end of the driving device, a first one-way valve is slidably connected to the lower end of the sliding rail, and a clamping device is mounted at one end of the first one-way valve. Weld joints are limited through the triangular blocks, so that the low welding quality caused by too small weld joints is reduced, the welding heads are located in the iron sheet rolls, the interiors of the iron sheet rolls are welded through the welding heads, the outer surface of the iron sheet barrel is attractive after welding is completed through the welding heads, and when welding missing occurs, the outer surface of the iron sheet barrel can be welded again, so that the welding quality is improved. The outer surface of the iron sheet barrel is welded for the first time, so that repair welding is facilitated.

Description

Technical Field

[0001] The invention relates to the field of sheet metal bucket welding, in particular to a sheet metal bucket welding fixing device. Background Art

[0002] Iron buckets are commonly used items in people's daily lives. They are convenient for people to get or store water. Iron buckets are composed of a barrel body, a barrel bottom and ears. When making iron buckets, iron sheets or iron sheets are generally cut into semi-circular arcs and circles first, and then the semi-circular iron sheets or iron sheets are bent into a cylindrical shape, the gaps are welded, and then the circular iron sheets are aligned with the bottom of the cylinder and welded to make a preliminary iron bucket.

[0003] The iron barrel is made of bent iron sheets and welded. Generally, the welding is done on the outer surface of the iron sheet. External surface welding will result in poor appearance. Secondly, after the external surface welding, the two ends will be sealed to form an internally sealed iron barrel. At this time, when welding quality problems occur, the outer surface of the iron barrel can only be welded again. The secondary welding operation is complicated and the secondary welding is also more likely to repair the welding quality. Secondly, the appearance of the iron barrel will be worse after the secondary welding, which will affect sales. Summary of the invention

[0004] The present invention provides a welding and fixing device for a sheet metal bucket, which solves the problem of poor welding effect of the existing sheet metal bucket mentioned in the above background technology.

[0005] The present invention provides the following technical solution: a welding and fixing device for a sheet metal barrel comprises an inner welding box and a limiting groove arranged inside the inner welding box, a bracket is installed at one end of the inner welding box, a driving device is installed at one end of the bracket, the driving device is used to drive the sheet metal to move, a slide rail is installed at the lower end of the driving device, a welding head is slidably connected at the lower end of the slide rail, a clamping device is installed at one end of the welding head, and the clamping device is used to adjust the position of the sheet metal;

[0006] The clamping device comprises a connecting rod connected to one end of the welding head, a triangular block is installed at the lower end of the connecting rod, and two sides of the triangular block are used to abut against the iron sheet;

[0007] The two sides of the connecting rod are also rotatably connected with first columns, and the lower end of the first column is installed with an extrusion block, which is used to extrude the iron sheet to adjust the position.

[0008] As an optional solution of the iron barrel welding and fixing device of the present invention, the driving device includes an electric push rod and a round sleeve installed at one end of the bracket, the inside of the round sleeve is slidably connected with a shaft rod, and one end of the shaft rod is connected to one end of the electric push rod;

[0009] A push plate is installed on the outer surface of the shaft rod, and an extrusion column is slidably connected to the outer surface of the circular sleeve. The push plate is used to push the extrusion column to slide.

[0010] As an optional solution of the iron barrel welding and fixing device of the present invention, wherein: a cable is installed at one end of the shaft, and the lower end of the cable is connected to one side of the first column;

[0011] A guide wheel is also installed at the lower end of the connecting rod, and one side of the cable is in contact with one side of the triangular block;

[0012] The first column and the connecting rod are connected via a return spring.

[0013] As an optional solution of the iron barrel welding and fixing device of the present invention, wherein: a sealing cavity is arranged inside the circular sleeve, the shaft rod passes through the sealing cavity, and a piston sheet is also installed on the outer surface of the shaft rod, and the piston sheet is used to squeeze the air inside the sealing cavity;

[0014] An injection head is installed at one end of the welding head, a transmission hole is installed at one side of the injection head, and the upper end of the transmission hole is connected with the inside of the sealing cavity.

[0015] As an optional solution of the iron bucket welding and fixing device described in the present invention, one end of the extrusion column is provided with a vertical groove, the interior of the vertical groove is slidably connected to a limiting rod, one end of the limiting rod is slidably connected to the interior of the circular sleeve, and a second spring is provided on the outer surface of the limiting rod.

[0016] As an optional solution of the iron barrel welding and fixing device of the present invention, wherein: the outer surface of the first column is sleeved with a square tube, the upper end of the square tube is installed with an adjustment sleeve, and the interior of the adjustment sleeve is slidably connected with a piston slide column;

[0017] A short shaft is installed at one end of the connecting rod, a frame is installed on the outer surface of the short shaft, one end of the frame is connected to one end of the piston sliding column, and the piston sliding column is connected to the adjustment sleeve through a third spring.

[0018] As an optional scheme of the iron barrel welding and fixing device described in the present invention, a second hose is installed at the other end of the square cylinder, a piston cavity is provided inside the extrusion block, the piston cavity is connected to the second hose, a first spring is slidably connected inside the piston cavity, an adjustment strip is installed at one end of the first spring, and the adjustment strip is connected to the extrusion block through a first one-way valve.

[0019] As an optional solution of the iron bucket welding and fixing device described in the present invention, the interior of the adjustment strip is provided with a flow groove, the interior of the adjustment strip is also provided with a square cavity, the square cavity is connected with the flow groove, and the interior of the square cavity is also slidably connected with a leveling column.

[0020] As an optional solution of the iron bucket welding and fixing device of the present invention, wherein: a support frame is installed at one end of the bracket, a rotating shaft is rotatably connected between the two support frames, and the rotating shaft and the support frame are connected through a torque spring;

[0021] The outer surface of the rotating shaft is also provided with a protrusion, and the support frame is used to abut against the support frame;

[0022] A connecting column is installed at the upper end of the rotating shaft, a piston sleeve is installed at the upper end of the connecting column, a piston column is slidably connected inside the piston sleeve, a force plate is installed at one end of the piston column, and the other end of the piston column is connected to the inside of the piston sleeve through a fourth spring.

[0023] As an optional solution of the iron barrel welding and fixing device of the present invention, wherein: the piston sleeve is provided with a first cavity and a second cavity inside, the first cavity is connected with the second cavity, and the second cavity is connected with a third hose;

[0024] The piston sleeve is slidably connected with an arc plate inside, and ratchets are installed at both ends of the arc plate;

[0025] One end of the first cavity is slidably connected to the second one-way valve, one end of the second cavity is slidably connected to the first one-way valve, and a flow pipe is provided at the first cavity, and the flow pipe is used to transmit the air in the first cavity to one end of the first one-way valve;

[0026] The first one-way valve is internally slidably connected with a sliding rod, and the ratchet is used to squeeze the sliding rod to slide.

[0027] The present invention has the following beneficial effects:

[0028] 1. The iron barrel welding fixture uses a triangular block to limit the size of the weld, so that the size of the weld gradually increases from the welding head to the bracket. When the welding head is welded, the iron coil will expand due to heat. Therefore, the triangular block is used to limit the weld, thereby reducing the low welding quality caused by a small weld. The welding head is located inside the iron coil, and the welding head is used to weld the inside of the iron coil. After the welding is completed by the welding head, the outer surface of the iron barrel is beautiful. Secondly, when welding leaks, the outer surface of the iron barrel can be welded again. Since the outer surface of the iron barrel is welded for the first time, it is convenient for repair welding.

[0029] 2. The iron barrel welding fixture transmits air to the square cylinder through an air pump, thereby pushing the first column to slide downward. The first column drives the extrusion block to contact one end of the iron roll. In this way, the two ends of the iron roll are squeezed downward by the two extrusion blocks to fit the inner wall of the inner welding box, thereby ensuring that the two ends of the iron roll are at the same level, thereby improving the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a main cross-sectional view of the present invention as a whole.

[0031] Figure 2 For the present invention Figure 1 Schematic diagram of the local structure at point A.

[0032] Figure 3 It is a schematic structural diagram of the clamping device of the present invention.

[0033] Figure 4 It is a bottom view of the clamping device of the present invention.

[0034] Figure 5 It is a schematic diagram of the structure of the adjustment strip and the leveling column of the present invention.

[0035] Figure 6 It is a front view of the adjustment strip and the leveling column of the present invention.

[0036] Figure 7 It is a schematic structural diagram of the alignment device of the present invention.

[0037] Figure 8 It is a schematic structural diagram of the piston sleeve of the present invention.

[0038] In the figure: 1, inner welding box; 2, limit groove; 3, bracket; 4, driving device; 5, slide rail; 6, alignment device; 7, clamping device; 9, welding head; 10, piston chamber; 12, first spring; 13, connecting spring; 14, support frame; 15, ratchet; 16, first chamber; 17, second chamber; 18, second one-way valve; 19, flow tube; 20, slide rod; 41, shaft rod; 42, electric push rod; 43, round sleeve; 44, push plate; 45, extrusion column; 46, vertical groove; 47, second spring; 48, limit rod; 61, rotating shaft; 62, bump; 63, torque spring; 64, Connecting column; 65, piston sleeve; 66, force plate; 67, piston column; 68, fourth spring; 69, arc plate; 71, connecting rod; 72, triangular block; 73, first column; 74, extrusion block; 75, injection head; 76, cable; 77, sealing chamber; 78, piston plate; 79, transmission hole; 82, guide wheel; 83, return spring; 84, square cylinder; 86, second hose; 88, adjustment sleeve; 89, piston slide column; 90, third spring; 91, third hose; 92, frame; 93, short shaft; 94, adjustment strip; 96, circulation groove; 97, square chamber; 99, leveling column. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1

[0041] See also Figure 1-2 A metal sheet barrel welding and fixing device comprises an inner welding box 1 and a limiting groove 2 arranged inside the inner welding box 1, a bracket 3 is installed at one end of the inner welding box 1, a driving device 4 is installed at one end of the bracket 3, the driving device 4 is used to drive the metal sheet to move, a slide rail 5 is installed at the lower end of the driving device 4, a welding head 9 is slidably connected at the lower end of the slide rail 5, a clamping device 7 is installed at one end of the welding head 9, and the clamping device 7 is used to adjust the position of the metal sheet;

[0042] The clamping device 7 includes a connecting rod 71 connected to one end of the welding head 9, and a triangular block 72 is installed at the lower end of the connecting rod 71. The two sides of the triangular block 72 are used to abut against the iron sheet;

[0043] The two sides of the connecting rod 71 are also rotatably connected with the first column 73, and the lower end of the first column 73 is installed with an extrusion block 74, which is used to extrude the iron sheet to adjust the position.

[0044] The iron barrel is made of iron sheets that are bent and welded. Generally, the welding is done on the outer surface of the iron sheet. Welding on the outer surface will result in a poor appearance. Secondly, after the outer surface is welded, the bottoms of both ends will be sealed to form an internally sealed iron barrel. At this time, when welding quality problems occur, the outer surface of the iron barrel can only be welded again. The secondary welding operation is complicated and the secondary welding is also more likely to repair the welding quality. Secondly, the appearance of the iron barrel will be worse after the secondary welding, which will affect sales;

[0045] The iron sheet is bent into an iron roll and inserted into the inner part of the limiting groove 2. At this time, the weld of the iron roll is located at the triangular block 72. Figure 2 As shown, the triangular block 72 is triangular in shape, and the size of the weld is limited by the triangular block 72, so that the size of the weld gradually increases from the welding head 9 to the bracket 3. When the welding head 9 is welded, the iron coil will expand by heat, so the triangular block 72 is used to limit the weld, thereby reducing the low welding quality caused by the small weld.

[0046] It should be noted that the welding head 9 is located inside the iron roll, and the welding head 9 is used to weld the inside of the iron roll, so that after the welding is completed by the welding head 9, the outer surface of the iron barrel is beautiful. Secondly, when welding leakage occurs, the outer surface of the iron barrel can be welded again. Since the outer surface of the iron barrel is welded for the first time, it is convenient for repair welding;

[0047] Furthermore, by using two extrusion blocks 74 to abut against the two sides of the iron coil, the extrusion blocks 74 use friction to drive the two ends of the iron coil closer to each other, and use the triangular block 72 to limit the weld, so that the weld at one end is suitable for welding, and the weld at the other end is large enough to adapt to the thermal expansion of the iron coil.

[0048] Example 2

[0049] This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1-2 The driving device 4 includes an electric push rod 42 and a round sleeve 43 installed at one end of the bracket 3, and a shaft 41 is slidably connected inside the round sleeve 43, and one end of the shaft 41 is connected to one end of the electric push rod 42;

[0050] A push plate 44 is installed on the outer surface of the shaft rod 41 , and a squeeze column 45 is slidably connected to the outer surface of the circular sleeve 43 . The push plate 44 is used to push the squeeze column 45 to slide.

[0051] according to Figure 1 As shown, the electric push rod 42 pushes the shaft rod 41 to slide to the right, and the shaft rod 41 drives the push plate 44 to slide to the right. Figure 2 As shown, the push plate 44 abuts against the lower end of the squeezing column 45, so that the push plate 44 pushes the squeezing column 45 to slide upward, so that the upper end of the squeezing column 45 abuts against the inner wall of the iron roll. Since the outer surface of the circular sleeve 43 is provided with a strip groove, the squeezing column 45 is slidably connected to the strip groove. Therefore, when the push plate 44 continues to abut against the squeezing column 45 and slides to the right, the push plate 44 will push the squeezing column 45 to slide to the right, so that the squeezing column 45 drives the iron roll to slide to the right, so that the iron roll gradually slides into the interior of the inner welding box 1, and then facilitates welding with the welding head 9.

[0052] It should be particularly noted that one end of the limiting rod 48 is slidably connected to the circular sleeve 43, and the other end of the limiting rod 48 is slidably connected to the inside of the vertical groove 46, so that the limiting rod 48 is used to limit the extrusion column 45, so that the extrusion column 45 can slide upward and slide to one end.

[0053] Example 3

[0054] This embodiment is an improvement made on the basis of embodiment 2. For details, please refer to Figure 1-4 , a cable 76 is installed at one end of the shaft 41, and the lower end of the cable 76 is connected to one side of the first column 73;

[0055] A guide wheel 82 is also installed at the lower end of the connecting rod 71, and one side of the cable 76 is in contact with one side of the triangular block 72;

[0056] The first column 73 is connected to the connecting rod 71 via a return spring 83 .

[0057] according to Figure 2 As shown, when the shaft rod 41 slides to the right, the shaft rod 41 also pulls the cable 76 to move, thereby using the cable 76 to pull the first column 73 to move, so that the two cables 76 pull the two first columns 73 and the extrusion block 74 to slide relative to each other, so that the extrusion block 74 drives the two ends of the iron roll to approach each other, and the triangular block 72 limits the weld seam, so that the weld seam size at the lower end of the welding head 9 is suitable for welding, and the quality after welding is high;

[0058] A sealing cavity 77 is provided inside the circular sleeve 43, and the shaft 41 passes through the sealing cavity 77. A piston sheet 78 is also installed on the outer surface of the shaft 41, and the piston sheet 78 is used to squeeze the air inside the sealing cavity 77;

[0059] An injection head 75 is installed at one end of the welding head 9 , and a transmission hole 79 is installed at one side of the injection head 75 . The upper end of the transmission hole 79 is connected to the inside of the sealing cavity 77 .

[0060] according to Figure 2 As shown, when the shaft 41 slides to the right, the shaft 41 also drives the piston plate 78 to slide to the right, and the piston plate 78 squeezes the air inside the sealing cavity 77 to the transmission hole 79, and the transmission hole 79 transmits the air to the injection head 75, so that the injection head 75 sprays air to clean the weld, thereby improving the welding quality;

[0061] It should be particularly noted that the spray head 75 is located at one end of the welding head 9. The spray head 75 is first used to spray air to clean the weld, and then the weld is welded by the welding head 9. The welding head 9 welds from right to left.

[0062] Example 4

[0063] This embodiment is an improvement made on the basis of embodiment 3. For details, please refer to Figure 1-6 A vertical groove 46 is provided at one end of the extrusion column 45, and a limiting rod 48 is slidably connected inside the vertical groove 46. One end of the limiting rod 48 is slidably connected inside the round sleeve 43, and a second spring 47 is provided on the outer surface of the limiting rod 48;

[0064] The outer surface of the first column 73 is sleeved with a square cylinder 84, the upper end of the square cylinder 84 is installed with an adjustment sleeve 88, and the interior of the adjustment sleeve 88 is slidably connected with a piston slide column 89;

[0065] A short shaft 93 is installed at one end of the connecting rod 71, and a bracket 92 is installed on the outer surface of the short shaft 93. One end of the bracket 92 is connected to one end of the piston slide 89, and the piston slide 89 is connected to the adjustment sleeve 88 through a third spring 90.

[0066] A second hose 86 is installed at the other end of the square cylinder 84, a piston chamber 10 is provided inside the extrusion block 74, the piston chamber 10 is communicated with the second hose 86, a first spring 12 is slidably connected inside the piston chamber 10, an adjustment bar 94 is installed at one end of the first spring 12, and the adjustment bar 94 is connected to the extrusion block 74 via a first one-way valve 13;

[0067] A flow slot 96 is provided inside the adjustment bar 94 . A square cavity 97 is also provided inside the adjustment bar 94 . The square cavity 97 is communicated with the flow slot 96 . A leveling column 99 is slidably connected inside the square cavity 97 .

[0068] There are a plurality of extrusion columns 45, which are arranged in a circular array around the axis of the circular sleeve 43;

[0069] according to Figure 2 and Figure 3 As shown, the inner wall of the iron barrel is supported by a plurality of extrusion columns 45, and the iron roll will be layered up and down at both ends, and not in the same horizontal plane, which will result in poor welding strength of the welding head 9 after welding. Therefore, it is necessary to limit the two ends of the iron roll to be welded in the same horizontal plane. Figure 3 As shown, air is transmitted to the square cylinder 84 by an air pump, so as to push the first column 73 to slide downward, and the first column 73 drives the extrusion block 74 to contact one end of the iron roll, so that the two ends of the iron roll are pressed downward by the two extrusion blocks 74 to fit the inner wall of the inner welding box 1, so as to ensure that the two ends of the iron roll are at the same level, thereby improving the welding effect;

[0070] A first pressure relief valve is installed inside the second hose 86, the first spring 12 is hollow inside, a second pressure relief valve is installed inside the first spring 12, a pressure relief value of the sealing baffle 98 is greater than a pressure relief value of the second pressure relief valve, and a pressure relief value of the second pressure relief valve is greater than a pressure relief value of the first pressure relief valve;

[0071] Further, according to Figure 6 As shown, the two ends of the iron roll are warped upward due to curling or cutting, and the extrusion block 74 cannot squeeze the two ends of the iron roll flat. Therefore, an adjustment bar 94 is slidably connected to one end of the extrusion block 74. Figure 4 and Figure 5 As shown, the first column 73 first drives the extrusion block 74 to slide downward to extrude the iron coil to fit the inner wall of the inner welding box 1. Then, when the air pressure inside the square cylinder 84 is greater than the pressure relief value of the first pressure relief valve at the second hose 86, the gas inside the square cylinder 84 will pass through the first pressure relief valve and enter the second hose 86. The high-pressure gas is transmitted to the inside of the piston chamber 10 through the second hose 86, so that the gas at the piston chamber 10 pushes the first spring 12 to slide to the right, and the first spring 12 pushes the adjustment bar 94 to slide to the right. Figure 6As shown, the adjustment strip 94 is slid out to be close to the side of the iron roll, thus increasing the adjustment range;

[0072] Furthermore, when the air pressure at the piston chamber 10 is greater than the pressure relief value of the second pressure relief valve inside the first spring 12, the air at the piston chamber 10 will flow into the flow groove 96 over the second pressure relief valve, so that the air pressure squeezes the leveling column 99 to slide out of the adjustment bar 94, so that the lower end of the leveling column 99 squeezes one end of the iron roll to slide downward, so that the two ends of the iron roll are parallel, so that the welding head 9 can better weld the iron barrel;

[0073] It should be particularly noted that a flat mesh is installed inside the limiting groove 2, and the leveling column 99 presses one end of the iron roll downward to abut against the flat mesh.

[0074] Example 5

[0075] This embodiment is an improvement made on the basis of embodiment 4. For details, please refer to Figure 1-8 A support frame 14 is installed at one end of the bracket 3, and a rotating shaft 61 is rotatably connected between the two support frames 14, and the rotating shaft 61 and the support frame 14 are connected through a torque spring 63;

[0076] The outer surface of the rotating shaft 61 is also provided with a protrusion 62 , and the support frame 14 is used to abut against the support frame 14 ;

[0077] A connecting column 64 is installed at the upper end of the rotating shaft 61, a piston sleeve 65 is installed at the upper end of the connecting column 64, a piston column 67 is slidably connected inside the piston sleeve 65, a force plate 66 is installed at one end of the piston column 67, and the other end of the piston column 67 is connected to the inside of the piston sleeve 65 through a fourth spring 68;

[0078] The piston sleeve 65 is provided with a first cavity 16 and a second cavity 17 inside, the first cavity 16 is connected with the second cavity 17, and the second cavity 17 is connected with the third hose 91;

[0079] The piston sleeve 65 is slidably connected to an arc plate 69, and ratchets 15 are installed at both ends of the arc plate 69;

[0080] One end of the first chamber 16 is slidably connected to the second one-way valve 18, one end of the second chamber 17 is slidably connected to the first one-way valve 13, and a flow pipe 19 is provided at the first chamber 16, and the flow pipe 19 is used to transmit the air in the first chamber 16 to one end of the first one-way valve 13;

[0081] The first one-way valve 13 is internally slidably connected with a sliding rod 20 , and the ratchet 15 is used to squeeze the sliding rod 20 to slide.

[0082] according to Figure 7 and Figure 8As shown in the figure, the two ends of the iron roll will be misaligned front and back, so an alignment device 6 is installed inside the inner welding box 1. When the extrusion column 45 transmits the iron roll, one side of one end of the iron roll contacts the force plate 66, so the force plate 66 and the piston column 67 are squeezed to slide inside the piston sleeve 65, so that the piston column 67 is used to squeeze the air inside the piston sleeve 65 to the first chamber 16, and the air is transmitted to the flow pipe 19 through the first chamber 16. The flow pipe 19 transmits the air to one side of the first one-way valve 13, and the continuously transmitted air squeezes the first one-way valve 13. A one-way valve 13 slides toward the second chamber 17, so that the flow tube 19 transmits air to the second chamber 17, and transmits air to the third hose 91 through the second chamber 17, and transmits air to the inside of the adjustment sleeve 88 through the third hose 91, so that the air is used to squeeze the piston slide column 89 to slide to one side, so that the piston slide column 89 drives the square cylinder 84 and the extrusion block 74 to move, so that the extrusion block 74 drives one end of the iron roll to slide to one end, so that both sides of one end of the iron roll are against the force plate 66, thereby reducing the front and rear misalignment of the iron roll;

[0083] It should be noted that the two third hoses 91 transmit air alternately, and are divided into a first third hose 91 and a second third hose 91 and a first piston slide column 89 and a second piston slide column 89. The first third hose 91 and the first piston slide column 89 are located on one side of the axis of the round sleeve 43, and the second third hose 91 and the second piston slide column 89 are located on the other side of the axis of the round sleeve 43. The first third hose 91 transmits air to drive the second piston slide column 89 to slide, and the second third hose 91 transmits air to drive the first piston slide column 89 to slide.

[0084] It should be noted that according to Figure 7 As shown, a protrusion 62 is installed on the outer surface of the rotating shaft 61, and the protrusion 62 first contacts the inner wall of the support frame 14, so that the rotating shaft 61 does not rotate. When the thrust of the two force-bearing plates 66 is greater than the elastic force of the protrusion 62, the protrusion 62 is deformed, so that the rotating shaft 61 rotates, so that the iron barrel passes over the force-bearing plate 66;

[0085] Reset: When the force plate 66 and the piston sleeve 65 slide downward, the ratchet wheels 15 at both ends of the arc plate 69 will not contact the second one-way valve 18 and the slide bar 20. When the torque spring 63 drives the rotating shaft 61 to rotate and reset, the ratchet wheel 15 contacts the second one-way valve 18 and the slide bar 20, so that the second one-way valve 18 slides toward the first chamber 16, so that the first chamber 16 communicates with the external air 6, so that the air fills the inside of the piston sleeve 65, so that the force plate 66 is reset, and the ratchet wheel 15 squeezes the slide bar 20 to slide toward the second chamber 17, so that the second chamber 17 communicates with the external air of the piston sleeve 65, so that the inside of the adjustment sleeve 88 is reset;

[0086] The outer surfaces of the second one-way valve 18 and the slide bar 20 are both installed with supporting springs to assist the second one-way valve 18 and the slide bar 20 to reset. The prior art of the ratchet 15 is not described here.

[0087] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0088] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A welding and fixing device for a sheet metal barrel, comprising an inner welding box (1) and a limiting groove (2) arranged inside the inner welding box (1), characterized in that: A bracket (3) is installed at one end of the inner welding box (1), a driving device (4) is installed at one end of the bracket (3), the driving device (4) is used to drive the iron sheet to move, a slide rail (5) is installed at the lower end of the driving device (4), a welding head (9) is slidably connected to the lower end of the slide rail (5), a clamping device (7) is installed at one end of the welding head (9), and the clamping device (7) is used to adjust the position of the iron sheet; The clamping device (7) comprises a connecting rod (71) connected to one end of the welding head (9), a triangular block (72) is installed at the lower end of the connecting rod (71), and two sides of the triangular block (72) are used to abut against the iron sheet; The two sides of the connecting rod (71) are also rotatably connected to a first column (73), and a squeezing block (74) is installed at the lower end of the first column (73). The squeezing block (74) is used to squeeze the iron sheet to adjust the position.

2. The iron bucket welding and fixing device according to claim 1 is characterized in that: The driving device (4) comprises an electric push rod (42) and a round sleeve (43) mounted on one end of the bracket (3); a shaft rod (41) is slidably connected inside the round sleeve (43); one end of the shaft rod (41) is connected to one end of the electric push rod (42); A push plate (44) is installed on the outer surface of the shaft rod (41), and a squeeze column (45) is slidably connected to the outer surface of the circular sleeve (43). The push plate (44) is used to push the squeeze column (45) to slide.

3. The iron bucket welding and fixing device according to claim 2 is characterized in that: A cable (76) is installed at one end of the shaft rod (41), and the lower end of the cable (76) is connected to one side of the first column (73); A guide wheel (82) is also installed at the lower end of the connecting rod (71), and one side of the cable (76) is in contact with one side of the triangular block (72); The first column (73) is connected to the connecting rod (71) via a return spring (83).

4. The iron bucket welding and fixing device according to claim 2 is characterized in that: The circular sleeve (43) is provided with a sealing cavity (77) inside, the shaft (41) passes through the sealing cavity (77), and a piston sheet (78) is installed on the outer surface of the shaft (41), and the piston sheet (78) is used to squeeze the air inside the sealing cavity (77); An injection head (75) is installed at one end of the welding head (9), a transmission hole (79) is installed at one side of the injection head (75), and the upper end of the transmission hole (79) is connected to the inside of the sealing cavity (77).

5. The iron barrel welding and fixing device according to claim 2 is characterized in that: One end of the extrusion column (45) is provided with a vertical groove (46), the interior of the vertical groove (46) is slidably connected to a limiting rod (48), one end of the limiting rod (48) is slidably connected to the interior of the circular sleeve (43), and the outer surface of the limiting rod (48) is provided with a second spring (47).

6. The metal bucket welding and fixing device according to claim 3 is characterized in that: The outer surface of the first column (73) is sleeved with a square tube (84), the upper end of the square tube (84) is installed with an adjustment sleeve (88), and the interior of the adjustment sleeve (88) is slidably connected with a piston slide column (89); A short shaft (93) is installed at one end of the connecting rod (71), and a frame (92) is installed on the outer surface of the short shaft (93). One end of the frame (92) is connected to one end of the piston slide column (89), and the piston slide column (89) and the adjustment sleeve (88) are connected via a third spring (90).

7. The iron bucket welding and fixing device according to claim 6 is characterized in that: A second hose (86) is installed at the other end of the square cylinder (84), a piston chamber (10) is arranged inside the extrusion block (74), the piston chamber (10) is communicated with the second hose (86), a first spring (12) is slidably connected inside the piston chamber (10), an adjustment bar (94) is installed at one end of the first spring (12), and the adjustment bar (94) is connected to the extrusion block (74) via a connecting spring.

8. The metal bucket welding and fixing device according to claim 7 is characterized in that: The adjustment strip (94) is provided with a circulation groove (96) inside, and a square cavity (97) is also provided inside the adjustment strip (94). The square cavity (97) is connected with the circulation groove (96), and a leveling column (99) is slidably connected inside the square cavity (97).

9. The iron bucket welding and fixing device according to claim 8, characterized in that: A support frame (14) is installed at one end of the bracket (3), a rotating shaft (61) is rotatably connected between the two support frames (14), and the rotating shaft (61) and the support frame (14) are connected via a torque spring (63); The outer surface of the rotating shaft (61) is also provided with a protrusion (62), and the support frame (14) is used to abut against the support frame (14); A connecting column (64) is installed at the upper end of the rotating shaft (61), a piston sleeve (65) is installed at the upper end of the connecting column (64), a piston column (67) is slidably connected inside the piston sleeve (65), a force plate (66) is installed at one end of the piston column (67), and the other end of the piston column (67) is connected to the inside of the piston sleeve (65) via a fourth spring (68).

10. The metal bucket welding and fixing device according to claim 9, characterized in that: The piston sleeve (65) is provided with a first chamber (16) and a second chamber (17) inside, the first chamber (16) is connected to the second chamber (17), and the second chamber (17) is connected to a third hose (91); The piston sleeve (65) is slidably connected to an arc plate (69), and ratchets (15) are installed at both ends of the arc plate (69); One end of the first chamber (16) is slidably connected to a second one-way valve (18), one end of the second chamber (17) is slidably connected to a first one-way valve (13), and a flow tube (19) is provided at the first chamber (16), and the flow tube (19) is used to transmit air in the first chamber (16) to one end of the first one-way valve (13); The first one-way valve (13) is slidably connected to a sliding rod (20) inside, and the ratchet (15) is used to squeeze the sliding rod (20) to slide.

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