Welding device for metal product processing

Abstract

The present invention discloses a welding device for metal product processing, and relates to the technical field of metal pipeline welding. The present invention comprises a first plugging component and a second plugging component, wherein the connecting rings on the first plugging component and the second plugging component are connected by connecting steel wire ropes, the outer sides of the first plugging component and the second plugging component are both wrapped with rubber sleeves, the side of the support plate away from the welding frame is fixedly connected with an air pipe, the inner side of the elastic skeleton is fixedly connected with a driving steel wire rope, and the driving steel wire rope passes through the support plate after changing the transmission direction through a rope hole. The present invention automatically unfolds the elastic skeleton under the action of elastic force, and the elastic skeleton presses the rubber sleeve tightly against the inner wall of the pipeline, so that the device can be applied to different pipeline plugging, and the rubber sleeve at this time is in a bowl shape and plugs on both sides of the weld. Through the design of the bowl-shaped structure, the rubber sleeve can be more closely attached to the inner wall of the pipeline when argon is injected, and the larger the inflation volume, the higher the plugging quality.

Description

Technical Field

[0001] The invention relates to the technical field of metal pipeline welding, and in particular to a welding device for metal product processing. Background Art

[0002] During the argon arc welding construction of stainless steel pipelines, filling the pipeline with argon gas is one of the important links in the welding process, and filling the pipeline with argon gas plays a decisive role in ensuring the welding quality.

[0003] At present, in the process of argon arc welding of stainless steel pipelines, argon is usually filled in the pipeline by tying foam sponges, carton boards and other materials on the inflation pipe to seal both sides of the weld. Although it can achieve a certain effect, it is not suitable for argon flushing in elbows. In addition, compared with rubber plate sealing, the argon consumption of foam sponge sealing is relatively large (12-15L / min), and the sealing material needs to be replaced according to the radius of the pipeline. In the document with publication number (: CN203541819U), a device for filling argon in pipeline elbows is disclosed. There is an anti-dropping soft connection mechanism in the inflation pipe. The middle of the anti-dropping soft connection mechanism is connected by a wire rope, and the right end of the anti-dropping soft connection mechanism is connected to an anti-dropping ventilation baffle The cap has two sealing sheets on the inflatable tube. The middle of the sealing sheet is a rubber sheet. The two sides are clamped with thin iron plates to prevent the rubber sheet from twisting and causing poor sealing. The left end of the inflatable tube is connected with a gas nozzle. The extension tube can be connected between the gas nozzle and the left end of the inflatable tube according to the actual situation. The right end of the inflatable tube is connected with a guide mechanism. Four nuts are fixed on the guide mechanism. The four guide bolts are installed on the guide mechanism with nuts and extend to four different directions. They are symmetrical up and down and left and right. Guide wheels are installed on the outside of the four guide bolts. The extension length of the guide bolts can be adjusted according to different pipe diameters. The middle section of the inflatable tube is a stainless steel corrugated hose. Argon gas diversion holes are designed on both sides of the stainless steel corrugated hose. Although the device solves the problem of argon flushing in the elbow, the rubber sheet involved in the plugging also needs to be replaced according to the radius of the pipeline, which is inconvenient to use. At the same time, the device simply plugs vertically and diametrically through the rubber sheet, and the plugging effect is limited. In order to achieve the sealing effect between the rubber sheet and the pipeline, the rubber sheet needs to be pressed tightly against the inner wall of the pipeline. At this time, the friction between the rubber sheet and the inside of the pipeline is large, and it is difficult to pass the device through the pipeline. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problem and provide a welding device for processing metal products.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A welding device for processing metal products comprises a first blocking component and a second blocking component, wherein the first blocking component and the second blocking component both comprise a bracket plate, an outer ring of the bracket plate is provided with an elastic frame, an end of the elastic frame away from the bracket plate is provided with a pin hole, a welding frame is welded in the middle of the bracket plate, an end of the welding frame away from the bracket plate is welded with a guide frame, a rope hole is provided in an inner ring of the guide frame, an end of the guide frame away from the welding frame is welded with a locking plate, a sliding hole is provided in an inner ring of the locking plate, a tension spring is fixedly connected to a side of the locking plate away from the guide frame, an end of the tension spring away from the locking plate is fixedly connected to a connecting ring, a locking pin is provided in an annular manner on a side of the connecting ring close to the locking plate, the locking pin is slidably connected to the sliding hole and can be plugged into the pin hole, and the connecting rings on the first blocking component and the second blocking component are connected by connecting steel wire ropes;

[0007] The outsides of the first and second blocking components are wrapped with rubber sleeves, the side of the support plate away from the welding frame is fixedly connected to the air pipe, and the inner side of the elastic skeleton is fixedly connected to a driving wire rope, and the driving wire rope changes the transmission direction through the rope hole and then passes through the support plate.

[0008] Furthermore, an exhaust hole is provided in an annular shape inside the support plate, an exhaust sleeve is provided on one side of the exhaust hole close to the welding frame, and an exhaust port is provided on the outer side of the exhaust sleeve;

[0009] One end of the locking pin away from the locking disk is fixedly connected to a connecting rod, and one end of the connecting rod away from the locking pin is fixedly connected to a sliding plug, and the sliding plug is sealingly slidably connected in the exhaust hole.

[0010] Furthermore, a through hole is opened inside the support plate, the driving steel wire rope passes through the through hole, and a sealing sleeve is arranged between the driving steel wire rope and the through hole.

[0011] Furthermore, a guide wheel is rotatably mounted inside the rope hole.

[0012] Furthermore, the locking disk is designed to be arc-shaped.

[0013] Furthermore, a binding cross brace is provided in the middle of the connecting ring.

[0014] Furthermore, a quick-connect connector is provided at the air inlet end of the air pipe.

[0015] Furthermore, a pull ring is provided at the driving end of the driving steel wire rope.

[0016] Furthermore, a skirt is provided at the opening of the rubber sleeve.

[0017] The beneficial effects of the present invention are as follows:

[0018] The present invention connects the first plugging component and the second plugging component together by connecting the wire rope, so that the device can seal the two ends of the weld in the bent pipe, and when passing the pipe, the first plugging component and the second plugging component are spherical to pass the pipe. At this time, the radius of the first plugging component and the second plugging component is smaller than the radius of the pipe, which makes it convenient to pass the pipe. At the same time, the device is connected by the wire rope, and there is a wider adjustment angle between the first plugging component and the second plugging component, and the scope of application is wider.

[0019] The present invention straightens the connecting wire rope, and the connecting wire rope drives the locking pin away from the pin hole. The elastic skeleton automatically expands under the action of elastic force, and the elastic skeleton presses the rubber sleeve tightly against the inner wall of the pipeline, so that the device can be suitable for sealing different pipelines. At this time, the rubber sleeve is in a bowl shape and seals on both sides of the weld. Through the design of the bowl-shaped structure, the rubber sleeve can fit more closely to the inner wall of the pipeline when argon gas is injected. The larger the inflation volume, the higher the sealing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the first plugging component and the second plugging component of the present invention;

[0022] Figure 3 is a schematic diagram of a first plugging assembly of the present invention;

[0023] Figure 4 is a schematic diagram of the support plate and the elastic skeleton of the present invention;

[0024] Figure 5 The present invention Figure 4 The enlarged schematic diagram of part A in the middle;

[0025] Figure 6 It is a schematic diagram of the structure of the guide frame and the locking frame of the present invention;

[0026] Figure 7 It is a schematic diagram of the connecting ring structure of the present invention;

[0027] Figure 8 It is a schematic diagram of the rubber sleeve of the present invention;

[0028] Fig. 9 It is a schematic diagram of welding plugging of the present invention.

[0029] Figure numerals: 1. first plugging component; 11. bracket plate; 111. sealing sleeve; 12. elastic skeleton; 121. pin hole; 13. welding frame; 14. guide frame; 141. rope hole; 142. guide wheel; 15. locking plate; 151. sliding hole; 16. tension spring; 17. connecting ring; 171. locking pin; 172. connecting rod; 173. sliding plug; 18. exhaust sleeve; 181. exhaust port; 2. second plugging component; 3. connecting wire rope; 4. air pipe; 41. quick connector; 5. driving wire rope; 51. pull ring; 6. rubber sleeve; 61. skirt. DETAILED DESCRIPTION

[0030] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] Embodiment 1, as Figure 1-Figure 9 As shown, a welding device for processing metal products includes a first plugging component 1 and a second plugging component 2, characterized in that the first plugging component 1 and the second plugging component 2 both include a bracket plate 11, an elastic skeleton 12 is provided in an annular shape on the outer side of the bracket plate 11, a pin hole 121 is provided at one end of the elastic skeleton 12 away from the bracket plate 11, a welding frame 13 is welded in the middle of the bracket plate 11, a guide frame 14 is welded at one end of the welding frame 13 away from the bracket plate 11, a rope hole 141 is provided in an annular shape on the inner side of the guide frame 14, and the guide frame 14 is away from the welding frame 13. A locking plate 15 is welded to one end of the receiving frame 13, a sliding hole 151 is provided in an annular manner inside the locking plate 15, a tension spring 16 is fixedly connected to the side of the locking plate 15 away from the guide frame 14, a connecting ring 17 is fixedly connected to the end of the tension spring 16 away from the locking plate 15, a locking latch 171 is provided in an annular manner on the side of the connecting ring 17 close to the locking plate 15, the locking latch 171 is slidably connected in the sliding hole 151, and can be inserted in the pin hole 121, and the connecting ring 17 on the first plugging component 1 and the second plugging component 2 is connected via a connecting wire rope 3;

[0032] The outside of the first blocking component 1 and the second blocking component 2 are both wrapped with a rubber sleeve 6, the side of the bracket plate 11 away from the welding frame 13 is fixedly connected to the trachea 4, and the inner side of the elastic skeleton 12 is fixedly connected to the driving wire rope 5, which changes the transmission direction through the rope hole 141 and then passes through the bracket plate 11.

[0033] Before threading the pipe, fix the bracket plate 11 on the first plugging component 1, and then pull the driving wire rope 5, the driving wire rope 5 pulls the elastic skeleton 12 together, the elastic skeleton 12 is made of spring steel, and has excellent elasticity and resilience. When the open ends of the elastic skeleton 12 are brought together to the position of the locking pin 171, pull the connecting wire rope 3, the connecting wire rope 3 drives the locking pin 171 to slide into the sliding hole 151, and then continue to pull the driving wire rope 5 to make the pin hole 121 on the elastic skeleton 12 correspond to the sliding hole 151, release the connecting wire rope 3, the locking pin 171 is inserted into the pin hole 121, the elastic skeleton 12 is locked, and then use the above method to close and lock the elastic skeleton 12 on the second plugging component 2. At this time, the device is attached Figure 1 In the state shown, the radius of the first plugging component 1 and the second plugging component 2 are both smaller than the inner diameter of the pipeline. Since the first plugging component 1 and the second plugging component 2 are softly connected, the device can easily pass through the pipeline, and the pipe threading is convenient. Then, the air pipe 4 at both ends of the first plugging component 1 and the second plugging component 2 is pulled. The air pipe 4 is made of polyurethane hose and has a certain tensile strength. The air pipe 4 makes the first plugging component 1 and the second plugging component 2 located on both sides of the weld respectively, and then the air pipe 4 is continued to be pulled to make the first plugging component 1 and the second plugging component 2 move away from each other, and the connecting wire rope 3 drives the connecting ring 17 away from the locking disk 15, and the connecting ring 17 drives the locking pin 171 away from the pin hole 121. At this time, the elastic skeleton 12 is unfolded under the action of elastic force, and the elastic skeleton 12 stretches the rubber sleeve 6, and the elastic skeleton 12 presses the rubber sleeve 6 against the inner wall of the pipeline. By changing the unfolding angle of the elastic skeleton 12, the device can automatically adapt to pipelines of different radii, which is convenient to use. At this time, the rubber sleeve 6 is bowl-shaped, and by selecting the first plugging component 1 and the second The air pipe 4 on the plugging component 2 is connected to the argon gas source, and then argon is filled into the pipeline to ensure the welding quality. As the argon is filled between the two bowl-shaped rubber sleeves 6, through the setting of the bowl-shaped structure, as the amount of argon filled increases, the rubber sleeve 6 is more closely attached to the inner wall of the pipeline, the plugging effect is better, argon leakage is prevented, and loss is reduced. At the same time, under the mutual pulling of the two groups of leather cups, the argon filling is guaranteed to be stable. After the welding is completed, the two groups of driving wire ropes 5 are given tension to make the first plugging component 1 and the second plugging component 2 move away from each other. At this time, under the action of mutual tension, the elastic skeleton 12 is close to the middle, and the rubber sleeve 6 is away from the inner wall of the pipeline. Under the condition of maintaining a certain tension at both ends, the overall device is moved to move the first plugging component 1 and the second plugging component 2 out of the pipeline, and the device is easy to take out. It should be noted that the length of the driving wire rope 5 is much larger than the length of the pipeline and has sufficient moving length. When the first plugging component 1 and the second plugging component 2 are moved out of the pipeline, the driving end of the driving wire rope 5 is still located outside the pipeline.

[0034] Embodiment 2, based on the above embodiment, further includes that an exhaust hole is provided in an annular shape inside the support plate 11, an exhaust sleeve 18 is provided on one side of the exhaust hole close to the welding frame 13, and an exhaust port 181 is provided on the outer side of the exhaust sleeve 18;

[0035] One end of the locking pin 171 away from the locking disk 15 is fixedly connected to a connecting rod 172 , and one end of the connecting rod 172 away from the locking pin 171 is fixedly connected to a sliding plug 173 . The sliding plug 173 is sealingly slidably connected in the exhaust hole.

[0036] The elastic skeleton 12 is unfolded under the action of elastic force, and the elastic skeleton 12 stretches the rubber sleeve 6, and the elastic skeleton 12 presses the rubber sleeve 6 against the inner wall of the pipe. By changing the unfolding angle of the elastic skeleton 12, the device can automatically adapt to pipes of different radii, which is convenient to use. At this time, the rubber sleeve 6 is bowl-shaped. By selecting the air pipe 4 on the first plugging component 1 and the second plugging component 2 to be connected with the argon gas source, and then filling the inside of the pipe with argon gas, as the argon gas is filled between the two bowl-shaped rubber sleeves 6, through the setting of the bowl-shaped structure, as the argon gas is filled As the amount of gas injected increases, the gas will give the first plugging component 1 and the second plugging component 2 a driving force to move away from each other. When the gas pressure exceeds the preset value, the gas driving force is greater than the tension of the tension spring 16. The second plugging component 2 drives the connecting ring 17 on the first plugging component 1 away from the locking disk 15 through the connecting wire rope 3. The connecting ring 17 drives the sliding plug 173 away from the exhaust hole through the locking pin 171 and the connecting rod 172, and the exhaust port 181 is connected to the exhaust hole. At this time, the excess argon gas is discharged to ensure that the amount of argon gas inside the pipeline is moderate, and the welding quality is higher.

[0037] It should be noted that after the device is formed, it has good sealing properties, similar to the rubber cup used in the piston cylinder, but it will not affect the sealing sliding of the cup inside the pipe. Therefore, the automatic exhaust effect set in this embodiment will not affect the sealing of the device.

[0038] Embodiment three, based on the above embodiment, further includes that a through hole is opened inside the support plate 11, the driving wire rope 5 passes through the through hole, and a sealing sleeve 111 is arranged between the driving wire rope 5 and the through hole. Through this design, the sealing between the driving wire rope 5 and the support plate 11 is improved to prevent air leakage at the through hole position.

[0039] Embodiment 4, based on the above embodiment, further includes that a guide wheel 142 is rotatably installed inside the rope hole 141, and the friction between the driving wire rope 5 and the rope hole 141 is reduced by the setting of the guide wheel 142.

[0040] Embodiment 5, based on the above embodiment, further includes that the locking plate 15 is designed to be arc-shaped. Through this design, when the elastic skeleton 12 is closed, it will not be stuck on the edge of the locking plate 15, and can be better closed under the guidance of the locking plate 15.

[0041] Embodiment 6, based on the above embodiment, further includes that a binding cross brace is provided in the middle of the connecting ring 17. This design facilitates the binding and connection of the steel wire rope 3.

[0042] Embodiment 7, on the basis of the above embodiments, further includes that the air inlet end of the air pipe 4 is provided with a quick-plug connector 41. Through the setting of the quick-plug connector 41, the air source can be quickly connected, and after the air source is disconnected, the air inlet end of the air pipe 4 is automatically blocked, so that the air source can be connected to any quick-plug connector 41, and the other set of quick-plug connectors 41 will not leak.

[0043] Embodiment 8, based on the above embodiment, further includes that a pull ring 51 is provided at the driving end of the driving wire rope 5. The setting of the pull ring 51 facilitates pulling the driving wire rope 5 and makes it more convenient to install and thread the pipe.

[0044] Embodiment 9, based on the above embodiment, further includes that a skirt 61 is provided at the opening of the rubber sleeve 6. By providing the skirt 61, the rubber sleeve 6 has a longer sealing edge after being in a leather cup state, which can further improve the sealing effect of the device.

[0045] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welding device for metal product processing, comprising a first plugging component (1) and a second plugging component (2), characterized in that: The first plugging component (1) and the second plugging component (2) both comprise a support plate (11), an elastic frame (12) being provided in an annular shape on the outer side of the support plate (11), a pin hole (121) being provided at one end of the elastic frame (12) away from the support plate (11), a welding frame (13) being welded in the middle of the support plate (11), a guide frame (14) being welded at one end of the welding frame (13) away from the support plate (11), a rope hole (141) being provided in an annular shape on the inner side of the guide frame (14), a locking plate (15) being welded at one end of the guide frame (14) away from the welding frame (13), and the guide frame (14) being welded at one end of the guide frame (14) away from the welding frame (13). A sliding hole (151) is provided in an annular shape inside the locking disk (15); a tension spring (16) is fixedly connected to a side of the locking disk (15) away from the guide frame (14); an end of the tension spring (16) away from the locking disk (15) is fixedly connected to a connecting ring (17); a locking pin (171) is provided in an annular shape on a side of the connecting ring (17) close to the locking disk (15); the locking pin (171) is slidably connected in the sliding hole (151) and can be inserted into the pin hole (121); the connecting ring (17) on the first blocking component (1) and the second blocking component (2) are connected via a connecting steel wire rope (3); The outer sides of the first blocking component (1) and the second blocking component (2) are both wrapped with a rubber sleeve (6); a side of the support plate (11) away from the welding frame (13) is fixedly connected to a trachea (4); the inner sides of the elastic skeleton (12) are fixedly connected to a driving steel wire rope (5); the driving steel wire rope (5) passes through the rope hole (141) to change the transmission direction and then passes through the support plate (11); An exhaust hole is provided in an annular shape inside the support plate (11); an exhaust sleeve (18) is provided on a side of the exhaust hole close to the welding frame (13); an exhaust port (181) is provided on the outside of the exhaust sleeve (18); an end of the locking pin (171) away from the locking plate (15) is fixedly connected to a connecting rod (172); an end of the connecting rod (172) away from the locking pin (171) is fixedly connected to a sliding plug (173); and the sliding plug (173) is sealingly slidably connected to the exhaust hole.

2. A welding device for metal product processing according to claim 1, characterized in that: A through hole is provided inside the support plate (11), the driving steel wire rope (5) passes through the through hole, and a sealing sleeve (111) is provided between the driving steel wire rope (5) and the through hole.

3. A welding device for metal product processing according to claim 1, characterized in that: A guide wheel (142) is rotatably mounted inside the rope hole (141).

4. A welding device for metal product processing according to claim 1, characterized in that: The locking disk (15) is designed to be arc-shaped.

5. A welding device for metal product processing according to claim 1, characterized in that: A binding cross brace is provided in the middle of the connecting ring (17).

6. A welding device for metal product processing according to claim 1, characterized in that: The air inlet end of the air pipe (4) is provided with a quick-connect connector (41).

7. A welding device for metal product processing according to claim 1, characterized in that: The driving end of the driving steel wire rope (5) is provided with a pull ring (51).

8. A welding device for metal product processing according to claim 1, characterized in that: A skirt (61) is provided at the opening of the rubber sleeve (6).

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