Gas protection device for titanium alloy MIG welding
By designing a housing and recovery system on the MIG welding equipment, the problem of inert gas leakage is solved, and gas recycling and cost savings are achieved.
Patent Information
- Application Number
- CN202510647129.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2025-09-09
AI Technical Summary
Existing MIG welding equipment easily releases inert gas during the welding process, causing health hazards and cannot be recycled and reused, increasing costs.
A gas shielding device for MIG welding of titanium alloy was designed, which included a base, a bracket, a shell, a gas storage tank and a recovery pipe. The shell and the blocking plate surrounded the welding machine to prevent gas from escaping, and the gas was filtered and recovered into the gas storage tank through the recovery pipe and the vacuum pump to achieve gas reuse.
It effectively prevents the escape of inert gas, protects the health of welding workers, reduces gas consumption costs, and realizes the recycling of gas.
Smart Images
Figure CN120606142A_ABST
Abstract
Description
Technical Field
[0001] The present invention mainly relates to the technical field of gas protection for welding, and in particular to a gas protection device for MIG welding of titanium alloy. Background Art
[0002] Welding equipment, as a commonly used mechanical device, includes various types of welding. One type of welding equipment uses MIG welding. During the welding process, inert gas protection is used to prevent oxidation of the welding area and then the welding wire is melted to the joint to achieve welding. The inert gases used in the welding process are often helium and argon. Long-term exposure to these gases can cause harm to the human body. This is also the reason why welders are very likely to have health problems after working for a long time. There are also mechanical welding devices, but they do not have the function of preventing gas leakage and gas recovery. In order to reduce gas leakage and provide reusability to save costs, a device that can provide other protection for this welding is envisioned. Summary of the Invention
[0003] (1) Technical issues to be resolved In view of the above problems, the present invention needs to provide a gas protection device for titanium alloy MIG welding, which can prevent gas from escaping and has the function of gas recovery.
[0004] (2) Technical solution In response to the above technical problems, the present invention provides a gas protection device for MIG welding of titanium alloy, comprising a base, a bracket provided on the base, a welding machine provided on the base, a first shell and a second shell provided slidingly on the base, an upper cover provided on the top of the first shell and the second shell, the first shell and the second shell provided with a foldable upper cover, the first shell and the second shell provided around the welding machine, the welding machine is located at the bottom of the first shell and the second shell, a blocking plate is fixedly installed in the first shell and the second shell, a gas storage tank is provided on the top of the upper cover, an inert gas pipe is provided on the gas storage tank and connected to the output hole, the output hole is provided on the welding machine; a recovery hole is provided on the first shell, and the recovery hole is connected to the gas storage tank via a recovery pipe.
[0005] Furthermore, the bracket includes a vertical section and a horizontal section, the two sections are arranged perpendicular to each other, and a thin plate is fixedly welded to the top of the bracket.
[0006] Furthermore, the top of the first shell is a circular ring, and the bottom of the circular ring, which occupies half of the circular ring, is provided with an arc-shaped plate, and an arc-shaped raised baffle is provided on the same side of the circular ring and located on the circular ring, and the recovery air hole is provided on the arc-shaped plate; the second shell includes a semicircular plate, a semicircular bar is fixedly installed on the opposite side of the semicircular plate, and a slide groove is provided on the top of the semicircular plate.
[0007] Furthermore, the inert gas pipe is divided into two sections, one section is a metal pipe and the other section is a hose. The joint between the metal pipe and the hose is located above the upper cover. The hose passes through the thin plate and the blocking plate and is fixedly connected to the welding machine.
[0008] Furthermore, the hard tube of the inert gas pipe is connected to the recovery pipeline, which includes a recovery pipe with a filter device provided on it. The bottom of the recovery pipe is provided with an air pump and an air extraction cover, which is installed at the recovery air hole.
[0009] Furthermore, a plug is slidably provided on the inert gas pipe, a small spring is provided between the plug and the thin plate, and the plug is located above the upper cover.
[0010] Furthermore, the upper cover includes a first folding cover and a second folding cover, with the horizontal section of the bracket as the axis, the first folding cover and the second folding cover are respectively located on both sides of the axis, a main motor is fixedly installed on the horizontal section of the bracket, and a main gear is fixedly installed on the output shaft of the main motor, and the main gear drives the second folding cover to rotate.
[0011] Furthermore, the second folding cover includes a right first fan-shaped plate, a right second fan-shaped plate, a right third fan-shaped plate, and a right fourth fan-shaped plate, and a small gear is fixedly installed on two corners of the right first fan-shaped plate, the right second fan-shaped plate, and the right third fan-shaped plate; one corner of the right first fan-shaped plate is rotatably installed on the horizontal section of the bracket, and the other corner is rotatably installed on the right first connecting block, one corner of the right second fan-shaped plate is rotatably installed on the right first connecting block, and the other corner is rotatably installed on the right first slide, one corner of the right third fan-shaped plate is rotatably installed on the right first slide, and the other corner is rotatably installed on the right second connecting block, and a small gear is fixedly installed on the corner of the right fourth fan-shaped plate close to the right third fan-shaped plate, one corner of the right fourth fan-shaped plate is rotatably installed on the right second connecting block, and the other corner is rotatably installed on the right second slide, and the small gears are meshed with each other.
[0012] Furthermore, the first folding cover includes a left fourth fan-shaped plate, a left third fan-shaped plate, a left second fan-shaped plate, and a left first fan-shaped plate, and pinions are fixedly installed at two corners of the left fourth fan-shaped plate, the left third fan-shaped plate, and the left second fan-shaped plate, and a pinion is fixedly installed on one corner of the left first fan-shaped plate; one corner of the left fourth fan-shaped plate is rotatably installed on the horizontal section of the bracket, and the other corner is rotatably installed on the left second connecting block, one side of the left third fan-shaped plate is rotatably installed on the left second connecting block, and the other end is rotatably installed on the left second slide, one end of the left second fan-shaped plate is rotatably installed on the left second slide, and the other end is rotatably installed on the left first connecting block, one end of the left first fan-shaped plate is rotatably installed on the left first connecting block, and the other end is rotatably installed on the left first slide; the right first slide and the left second slide both slide on the thin plate.
[0013] Furthermore, one end of the right first slide bar is fixedly connected to the second shell, and the other end is slidably installed on the inner slide groove at the bottom of the thin plate; one end of the left second slide bar is fixed to the first shell, and the other end is slidably installed on the inner slide groove; the left first slide bar slides in the inner slide groove, and the right second slide bar slides in the inner slide groove.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention arranges a first shell and a second shell around the welding machine, and a blocking plate is arranged between the first shell and the second shell. The first shell and the second shell can slide. When welding, the two shells are closed to surround the welding machine, and cooperate with the blocking plate to prevent gas from escaping; 2. The present invention is provided with an upper cover, which is foldable and can adapt to the needs of opening and closing the first shell and the second shell, and can also adapt to the needs of top sealing. A plug is also provided under the upper cover, which can prevent excess gas from leaking out of the gap; 3. The present invention arranges a gas storage tank on the top cover, and the gas storage tank is connected to the gas outlet below with an inert gas pipe. An gas outlet, a recovery pipe, and a filtering device are provided on the first shell to filter and recover the gas into the gas storage tank. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0016] Figure 2 Schematic diagram of the bracket and thin plate of the present invention.
[0017] Figure 3 Schematic diagram of the second housing of the present invention.
[0018] Figure 4 This is a schematic diagram of the first shell of the present invention.
[0019] Figure 5 It is a partial first angle schematic diagram of the present invention.
[0020] Figure 6 It is a partial second angle schematic diagram of the present invention.
[0021] Figure 7 It is a partial third angle schematic diagram of the present invention.
[0022] Reference numerals: 1-protection mechanism; 101-second housing; 102-base; 103-first housing; 104-bracket; 105-thin plate; 106-recovery hole; 107-gas storage tank; 108-inert gas pipe; 109-filter device; 110-recovery pipe; 111-blocking plate; 112-air pump; 113-air extraction cover; 114-welding machine; 115-output hole; 116-plug; 117-small spring; 118-inner slide; 119-main motor; 120-main gear; 121 -right first sector plate; 122-right first connecting block; 123-pinion; 124-right second sector plate; 125-right first slide; 126-right third sector plate; 127-right second connecting block; 128-right fourth sector plate; 129-right second slide; 130-left first slide; 131-left first sector plate; 132-left first connecting block; 133-left second sector plate; 134-left second slide; 135-left third sector plate; 136-left second connecting block; 137-left fourth sector plate. DETAILED DESCRIPTION
[0023] The present invention will be further described below with reference to specific embodiments. The present invention is explained through the exemplary embodiments and descriptions of the present invention, but is not intended to limit the present invention.
[0024] Example: Figure 1-Figure 7 The gas protection device for titanium alloy MIG welding shown includes a protection mechanism 1, which includes a base 102, a bracket 104 is provided on the base 102, a welding machine 114 is also provided on the base 102, and an output hole 115 is provided on the welding machine 114, through which inert gas is discharged.
[0025] A first shell 103 and a second shell 101 are slidingly provided on the base 102. The first shell 103 and the second shell 101 can be made of transparent material, which can facilitate observation of the internal welding situation. A camera can also be set inside to monitor the internal welding situation. The internal welding can be performed by program-automated welding, or by welding with a camera, a manual remote control welding machine, or other welding auxiliary technologies in the prior art. A top cover is folded on the top of the first shell 103 and the second shell 101. The first shell 103 and the second shell 101 are arranged around the welding machine 114. The welding machine 114 is located at the bottom of the first shell 103 and the second shell 101. A blocking plate 111 is fixedly installed in the first shell 103 and the second shell 101. A gas storage tank 107 is provided on the top of the top cover. The gas storage tank 107 is provided with an inert gas pipe 108 connected to the output hole 115, and the output hole 115 is provided on the welding machine 114; a recovery hole 106 is provided on the first shell 103, and the recovery hole 106 is connected to the gas storage tank 107 using a recovery pipe.
[0026] The bracket 104 includes a vertical section and a horizontal section, which are arranged perpendicular to each other. A thin plate 105 is fixedly welded to the top of the bracket 104. Through holes are provided on the thin plate 105 and the bracket 104 for the inert gas pipe 108 to pass through.
[0027] A gas tank 107 is fixedly mounted on the thin plate 105 , and an inert gas pipe 108 is fixedly connected to the gas tank 107 . The inert gas pipe 108 passes through the through holes of the bracket 104 and the thin plate 105 and extends to the bottom of the blocking plate 111 , and is fixedly connected to the welding machine 114 .
[0028] The inert gas pipe 108 is divided into two sections, one section is a metal pipe and the other section is a hose. The joint between the metal pipe and the hose is located above the upper cover. The joint is a pipe joint component commonly used in the prior art. The hose passes through the thin plate 105 and the blocking plate 111 and is fixedly connected to the welding machine 114. The welding machine 114 is a commonly used processing equipment in the prior art, which has the function of XYZ axis welding and also has a welding fixing table.
[0029] The top of the first shell 103 is a circular ring, and the bottom of the circular ring, which occupies half of the circular ring, is provided with an arc-shaped plate, and an arc-shaped raised baffle is provided on the same side of the circular arc plate and located on the circular ring. The recovery air hole 106 is provided on the arc-shaped plate, and the arc-shaped plate is slidably installed on the base 102; the second shell 101 includes a semicircular plate, and a semicircular bar is fixedly installed on the opposite side of the semicircular plate. A slide groove is provided on the top of the semicircular plate, and the slide groove is used to accommodate the arc-shaped raised baffle, so that the first shell 103 and the second shell 101 can be unfolded to a larger angle.
[0030] The hard tube of the inert gas pipe 108 is connected to the recovery pipe, which includes a recovery pipe 110. The recovery pipe 110 is provided with a filter device 109. The filter device 109 is a commonly used gas filtering device in the prior art. The bottom of the recovery pipe 110 is provided with an air pump 112 and an air extraction cover 113. The air extraction cover 113 is fixedly set at the recovery air hole 106.
[0031] The upper cover includes a first folding cover and a second folding cover. The horizontal section of the bracket 104 is used as the axis. The first folding cover and the second folding cover are respectively located on both sides of the axis. A main motor 119 is fixedly installed on the horizontal section of the bracket 104. The output shaft of the main motor 119 is fixedly installed with a main gear 120, and the main gear 120 drives the second folding cover to rotate.
[0032] The second folding cover includes a right first fan-shaped plate 121, a right second fan-shaped plate 124, a right third fan-shaped plate 126, and a right fourth fan-shaped plate 128. A small gear 123 is fixedly installed on the two corners of the right first fan-shaped plate 121, the right second fan-shaped plate 124, and the right third fan-shaped plate 126. One corner of the right first fan-shaped plate 121 is rotatably mounted on the horizontal section of the bracket 104, and the other corner is rotatably mounted on the right first connecting block 122. One corner of the right second fan-shaped plate 124 is rotatably mounted on the right first connecting block 122, and the other corner is rotatably installed on the right first slide 125, one corner of the right third fan-shaped plate 126 is rotatably installed on the right first slide 125, and the other corner is rotatably installed on the right second connecting block 127, and a pinion 123 is fixedly installed on the corner of the right fourth fan-shaped plate 128 close to the right third fan-shaped plate 126, one corner of the right fourth fan-shaped plate 128 is rotatably installed on the right second connecting block 127, and the other corner is rotatably installed on the right second slide 129, and the pinions 123 are engaged with each other in pairs.
[0033] The first folding cover includes a left fourth sector plate 137, a left third sector plate 135, a left second sector plate 133, and a left first sector plate 131. A small gear 123 is fixedly installed on two corners of the left fourth sector plate 137, the left third sector plate 135, and the left second sector plate 133. A small gear 123 is fixedly installed on one corner of the left first sector plate 131. One corner of the left fourth sector plate 137 is rotatably mounted on the horizontal section of the bracket 104, and the other corner is rotatably mounted on the left second connecting block. 136, one end of the left third fan-shaped plate 135 is rotatably mounted on the left second connecting block 136, and the other end is rotatably mounted on the left second slide 134, one end of the left second fan-shaped plate 133 is rotatably mounted on the left second slide 134, and the other end is rotatably mounted on the left first connecting block 132, one end of the left first fan-shaped plate 131 is rotatably mounted on the left first connecting block 132, and the other end is rotatably mounted on the left first slide 130; the right first slide 125 and the left second slide 134 both slide on the thin plate 105.
[0034] The right first fan-shaped plate 121, the left second slide bar 134, the right third fan-shaped plate 126, the right fourth fan-shaped plate 128 and the left first fan-shaped plate 131, the left second fan-shaped plate 133, the left third fan-shaped plate 135, and the left fourth fan-shaped plate 137 have the same appearance, and the vertices are arc-shaped. After the above-mentioned multiple structures are unfolded, a circular ring is formed in the middle, and the plug 116 blocks the circular ring to prevent gas from overflowing.
[0035] One end of the right first slide bar 125 is fixedly connected to the second shell 101, and the other end is slidably installed on the inner slide groove 118 at the bottom of the thin plate 105. One end of the left second slide bar 134 is fixed to the first shell 103, and the other end is slidably installed on the inner slide groove 118; the left first slide bar 130 slides in the inner slide groove 118, and the right second slide bar 129 slides in the inner slide groove 118.
[0036] A plug 116 is also slidably provided on the inert gas tube 108 , and a small spring 117 is provided between the plug 116 and the thin plate 105 . One end of the small spring 117 is fixedly mounted on the plug 116 , and the other end is fixedly mounted on the thin plate 105 . The plug 116 is located above the upper cover.
[0037] The working principle of the present invention is as follows: the main motor 119 is started to drive the main gear 120 to rotate, the main gear 120 is engaged with the pinion 123 on the right first sector plate 121 to drive the right first sector plate 121 to rotate, and under the action of another pinion 123 on the right first sector plate 121, it is engaged with other pinions 123 to drive the right second sector plate 124, the right third sector plate 126, and the right fourth sector plate 128 to rotate, and at the same time, the pinion 123 below the main gear 120 is engaged with the pinion 123 on the left fourth sector plate 137. The pinion 123 engages, causing the left third sector plate 135, the left second sector plate 133, and the left first sector plate 131 to rotate, ultimately opening the second shell 101 and the first shell 103, placing the workpiece to be processed on the processing table of the welding machine 114, and then starting the main motor 119 to reverse, closing the second shell 101 and the first shell 103 to prevent gas leakage and affect the human body. When closing, the upper cover is also closed, and the plug 116 is set on the top of the upper cover to prevent gas from escaping.
[0038] The welding machine 114 is started to begin processing. The inert gas in the gas tank 107 is sent out from the inert gas pipe 108 to the output hole 115 until the welding is completed. During welding, the exhaust pump 112 is started to extract the excess gas in the second shell 101 and the first shell 103 to the filter device 109. After filtering by the filter device 109 (the inert gas is separated from oxygen and carbon dioxide), a pipe is set to output oxygen and carbon dioxide for discharge, and the other pipe is directly sent to the inert gas pipe 108 along the recovery pipe 110, and then recovered into the gas tank 107. The gas tank 107 is used to store the extracted inert gas for reuse in the welding gun, thereby realizing multiple utilization of the inert welding gas, saving costs, and preventing the harm of gas overflow to the human body.
[0039] Any matters not described in the present invention are applicable to the prior art.
Claims
1. A gas shielding device for MIG welding of titanium alloy, comprising a base (102), a bracket (104) provided on the base (102), and a welding machine (114) provided on the base (102), characterized in that: A first shell (103) and a second shell (101) are slidably provided on the base (102); a top cover is folded on the top of the first shell (103) and the second shell (101); the first shell (103) and the second shell (101) are arranged around a welding machine (114); the welding machine (114) is located at the bottom of the first shell (103) and the second shell (101); a blocking plate (111) is fixedly installed in the first shell (103) and the second shell (101); a gas storage tank (107) is provided on the top of the top cover; an inert gas pipe (108) is provided on the gas storage tank (107) and is connected to an output hole (115); and the output hole (115) is provided on the welding machine (114); a recovery hole (106) is provided on the first shell (103); and the recovery hole (106) is connected to the gas storage tank (107) via a recovery pipe.
2. A gas shielding device for titanium alloy MIG welding according to claim 1, characterized in that: The bracket (104) comprises a vertical section and a horizontal section, the two sections being arranged perpendicular to each other, and a thin plate (105) is fixedly welded to the top of the bracket (104).
3. A gas shielding device for titanium alloy MIG welding according to claim 1, characterized in that: The top of the first shell (103) is a circular ring, and the bottom of the circular ring, which occupies half of the circular ring, is provided with an arc-shaped plate, which is on the same side of the circular ring and located on the circular ring, and is provided with an arc-shaped raised baffle, and the recovery air hole (106) is provided on the circular plate; the second shell (101) includes a semicircular plate, and a semicircular bar is fixedly installed on the opposite side of the semicircular plate, and a slide groove is provided on the top of the semicircular plate.
4. A gas shielding device for titanium alloy MIG welding according to claim 1, characterized in that: The inert gas pipe (108) is divided into two sections, one section is a metal pipe and the other section is a hose. The joint between the metal pipe and the hose is located above the upper cover. The hose passes through the thin plate (105) and the blocking plate (111) and is fixedly connected to the welding machine (114).
5. A gas shielding device for titanium alloy MIG welding according to claim 4, characterized in that: The hard tube of the inert gas pipe (108) is connected to the recovery pipe, which includes a recovery pipe (110). The recovery pipe (110) is provided with a filter device (109). The bottom of the recovery pipe (110) is provided with an air pump (112) and an air extraction cover (113). The air extraction cover (113) is installed at the recovery air hole (106).
6. A gas shielding device for titanium alloy MIG welding according to claim 5, characterized in that: A plug (116) is also slidably provided on the inert gas tube (108), and a small spring (117) is provided between the plug (116) and the thin plate (105). The plug (116) is located above the upper cover.
7. A gas shielding device for titanium alloy MIG welding according to claim 6, characterized in that: The upper cover comprises a first folding cover and a second folding cover, with the horizontal section of the bracket (104) serving as an axis. The first folding cover and the second folding cover are respectively located on both sides of the axis. A main motor (119) is fixedly mounted on the horizontal section of the bracket (104). A main gear (120) is fixedly mounted on the output shaft of the main motor (119). The main gear (120) drives the second folding cover to rotate.
8. A gas shielding device for titanium alloy MIG welding according to claim 7, characterized in that: The second folding cover comprises a right first fan-shaped plate (121), a right second fan-shaped plate (124), a right third fan-shaped plate (126), and a right fourth fan-shaped plate (128). A small gear (123) is fixedly mounted on two corners of the right first fan-shaped plate (121), the right second fan-shaped plate (124), and the right third fan-shaped plate (126); one corner of the right first fan-shaped plate (121) is rotatably mounted on the horizontal section of the bracket (104), and the other corner is rotatably mounted on the right first connecting block (122); one corner of the right second fan-shaped plate (124) is rotatably mounted on the right first connecting block ( 122), the other corner is rotatably mounted on the right first slide bar (125), one corner of the right third sector plate (126) is rotatably mounted on the right first slide bar (125), the other corner is rotatably mounted on the right second connecting block (127), a pinion (123) is fixedly mounted on the corner of the right fourth sector plate (128) close to the right third sector plate (126), one corner of the right fourth sector plate (128) is rotatably mounted on the right second connecting block (127), the other corner is rotatably mounted on the right second slide bar (129), and the pinions (123) are meshed with each other.
9. A gas shielding device for titanium alloy MIG welding according to claim 7, characterized in that: The first folding cover comprises a left fourth sector plate (137), a left third sector plate (135), a left second sector plate (133), and a left first sector plate (131). Pinions (123) are fixedly mounted on two corners of the left fourth sector plate (137), the left third sector plate (135), and the left second sector plate (133). A pinion (123) is fixedly mounted on one corner of the left first sector plate (131). One corner of the left fourth sector plate (137) is rotatably mounted on the horizontal section of the bracket (104), and the other corner is rotatably mounted on the left second connecting member. The left third sector plate (135) is rotatably mounted on the left second connecting block (136), and the other end is rotatably mounted on the left second slide bar (134). The left second sector plate (133) is rotatably mounted on the left second slide bar (134), and the other end is rotatably mounted on the left first connecting block (132). The left first sector plate (131) is rotatably mounted on the left first connecting block (132), and the other end is rotatably mounted on the left first slide bar (130). The right first slide bar (125) and the left second slide bar (134) both slide on the thin plate (105).
10. A gas shielding device for titanium alloy MIG welding according to claim 9, characterized in that: One end of the right first slide bar (125) is fixedly connected to the second housing (101), and the other end is slidably mounted on the inner slide groove (118) at the bottom of the thin plate (105); one end of the left second slide bar (134) is fixed to the first housing (103), and the other end is slidably mounted on the inner slide groove (118); the left first slide bar (130) slides in the inner slide groove (118), and the right second slide bar (129) slides in the inner slide groove (118).