Automatic welding device for gas pipe fittings

Abstract

The utility model relates to the technical field of pipe fitting welding, and discloses an automatic gas pipe fitting welding device which comprises a base, fixing plates are fixedly connected to the two sides of the top wall of the base, a plurality of sliding plates are slidably connected to the periphery of a connecting rod, the bottom ends of a plurality of two-way screws penetrate through the inner wall of a cavity, and the bottom ends of the two-way screws penetrate through the inner wall of the cavity. The upper ends and the lower ends of the first two-way screws are in threaded connection with clamping plates, grooves are formed in the front portions and the rear portions of the sides, close to each other, of the clamping plates on the upper side and the lower side, clamping blocks are slidably connected into the grooves, the sides, away from each other, of the clamping blocks on the front side and the rear side are fixedly connected with one ends of third springs, and the other ends of the third springs are fixedly connected to the inner walls of the grooves. According to the gas pipe clamping device, the two clamping plates can be driven to clamp a gas pipe by rotating the first two-way screw rod, and the gas pipes of different specifications can be limited under the action of the two clamping blocks, so that the effect of clamping and fixing the gas pipes of different specifications is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fitting welding, in particular to an automatic welding device for gas pipe fittings. Background Art

[0002] Gas pipes usually refer to pipeline systems used to transport gas, such as natural gas and liquefied petroleum gas. These pipeline systems are widely used in cities, industries and civil buildings to transport gas from the supply source to various points of use. During the maintenance or processing of gas pipe fittings, hot melt welding devices are usually used to weld and fix two gas pipes.

[0003] After searching, the Chinese patent announcement number: CN217435061U discloses a fully automatic hot melt welding machine, including a machine base and a support frame arranged on the machine base, a cutting and grinding mechanism and a hot melt heating mechanism, wherein the cutting and grinding mechanism reciprocates up and down in a vertical plane to realize the cutting and grinding of the end face of the pipe to be processed, and the hot melt heating mechanism reciprocates up and down in a vertical plane to realize the heating of the end face of the pipe to be processed. The hot melt welding machine of this application has a compact design structure, and adopts a lifting method to realize the alternating cutting and grinding and heating of the pipe to be processed, which provides convenience for the hot melt welding of the pipe, improves the processing efficiency, reduces the labor intensity of the workers, and the overall structure is more compact and smaller in size; however, the support frame used for clamping the pipe in this application is only suitable for clamping and fixing pipes of one specification, and different sizes of support frames must be replaced for different pipes, which leads to poor applicability of the device and more troublesome use. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an automatic welding device for gas pipe fittings, aiming to improve the problem that the support frame in the prior art is only suitable for clamping and fixing pipes of one specification, and different sizes of support frames need to be replaced for different pipes.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automatic welding device for gas pipe fittings, comprising a base, a positioning mechanism is arranged in the base, both sides of the top wall of the base are fixedly connected with fixing plates, the front and rear parts of the two fixing plates close to each other are fixedly connected with connecting rods, a plurality of slides are slidably connected with the outer periphery of the connecting rod, a plurality of slides are provided inside the plurality of slides, a bidirectional screw one is rotatably connected with the top walls of the plurality of slides, the bottom ends of the plurality of bidirectional screws one penetrate the inner wall of the chamber, the upper and lower ends of the plurality of bidirectional screws one are threadedly connected with clamps, the front and rear parts of the close sides of the upper and lower clamps are provided with grooves, the plurality of grooves are slidably connected with clamping blocks, the sides of the front and rear clamping blocks away from each other are fixedly connected with one end of spring three, and the other ends of the plurality of spring three are fixedly connected to the inner wall of the groove.

[0006] Through the above technical solution: the effect of clamping and fixing gas pipes of different specifications can be achieved.

[0007] As a further description of the above technical solution:

[0008] The positioning mechanism includes a movable plate, which is slidably connected to the inner wall of the base, and the front and rear sides of the bottom wall of the movable plate are fixedly connected to spring 2, and the bottom ends of the two springs are fixedly connected to the inner bottom wall of the base, and the top wall of the movable plate is fixedly connected to a positioning plate, the top of the positioning plate passes through the top wall of the base, a slot is opened in the middle of the positioning plate, and a movable groove begins on one side of the middle of the top wall of the base, and the inner side wall of the movable groove is fixedly connected to one end of a spring, and the other end of the spring is fixedly connected to an insertion block, and one end of the insertion block passes through the inner side wall of the base and abuts against the positioning plate.

[0009] Through the above technical solution, the gas pipe can be positioned without affecting the heating of the gas pipe.

[0010] As a further description of the above technical solution:

[0011] A limiting rod 1 is arranged at the rear side of the plurality of bidirectional screw rods 1, and the upper and lower ends of the plurality of limiting rods 1 penetrate the clamping plate and are fixedly connected to the inner wall of the chamber.

[0012] Through the above technical solution, the two clamping plates can be moved closer or farther away from each other simultaneously along the bidirectional screw when the bidirectional screw rotates.

[0013] As a further description of the above technical solution:

[0014] The middle parts of the plurality of clamping blocks are penetrated by the limiting rod 2, the front and rear ends of the plurality of limiting rods 2 are fixedly connected to the front and rear walls in the groove, and the plurality of springs 3 are arranged on the outer periphery of the limiting rod 2.

[0015] Through the above technical solution: the stability of the movement of the clamping block in the groove can be ensured, and the spring three can be prevented from bending when being compressed.

[0016] As a further description of the above technical solution:

[0017] Slide grooves are provided on both sides of the front part of the top wall of the base, a servo motor is fixedly connected to one side of the base, the output end of the servo motor passes through the slide groove on one side and is fixedly connected to a bidirectional screw rod 2, one end of the bidirectional screw rod 2 passes through the inner wall of the slide groove on the other side, both ends of the bidirectional screw rod 2 are threadedly connected to sliders, the two sliders on one side are fixedly connected to the slider on one side, and the two sliders on the other side are fixedly connected to the slider on the other side.

[0018] Through the above technical solution: after heating the close ends of the two gas pipes, the two gas pipes can be brought close to each other and cooled in close proximity, so that the two gas pipes are welded together.

[0019] As a further description of the above technical solution:

[0020] The rear walls of the two fixed plates are fixedly connected with brackets, and a hot melt machine is arranged on the adjacent sides of the two brackets.

[0021] Through the above technical solution: the ends of the two gas pipes to be welded can be heated to ensure the subsequent welding of the two gas pipes.

[0022] As a further description of the above technical solution:

[0023] The front and rear sides of the inner bottom wall of the base are fixedly connected with positioning rods, the top ends of the two positioning rods pass through the movable plate and are fixedly connected to the inner top wall of the chamber, and the two springs are arranged on the outer periphery of the positioning rods.

[0024] Through the above technical solution: the stability of the movement of the moving plate can be ensured and the bending phenomenon of the second spring when it is compressed can be prevented.

[0025] As a further description of the above technical solution:

[0026] A guide rod is fixedly connected to the inner side wall of the movable groove, and one end of the guide rod penetrates into the insert block.

[0027] The above technical solution can ensure the stability of the movement of the insert block and prevent the spring from bending when it is compressed.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the utility model, by rotating the bidirectional screw rod, the two clamping plates can be driven to clamp the gas pipe, and the gas pipes of different specifications can be limited under the action of the two clamping blocks, thereby achieving the effect of clamping and fixing gas pipes of different specifications.

[0030] 2. In the utility model, the gas pipe can be positioned by the positioning plate, and the hot melt plate will also push the positioning plate to retract into the base and position it when heated, thereby achieving the effect of being able to position the gas pipe without affecting the heating of the gas pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a three-dimensional diagram of an automatic welding device for gas pipes proposed by the utility model;

[0032] Figure 2 This is a top view of an automatic welding device for gas pipes proposed by the utility model;

[0033] Figure 3 This is a side sectional view of an automatic welding device for gas pipes proposed by the utility model;

[0034] Figure 4 This is another side sectional view of the automatic welding device for gas pipes proposed by the utility model.

[0035] Legend:

[0036] 1. Base; 2. Positioning mechanism; 201. Moving slot; 202. Spring 1; 203. Insert block; 204. Positioning plate; 205. Slot; 206. Guide rod; 207. Moving plate; 208. Positioning rod; 209. Spring 2; 3. Fixed plate; 4. Connecting rod; 5. Slide plate; 6. Bidirectional screw 1; 7. Servo motor; 8. Bidirectional screw 2; 9. Slide groove; 10. Bracket; 11. Hot melt machine; 12. Limit rod 1; 13. Chamber; 14. Clamp; 15. Groove; 16. Limit rod 2; 17. Clamp block; 18. Spring 3; 19. Slider. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] Reference Figure 1 , Figure 2 and Figure 3The utility model provides an embodiment: an automatic welding device for gas pipe fittings, including a base 1, a positioning mechanism 2 is arranged in the base 1, both sides of the top wall of the base 1 are fixedly connected with fixed plates 3, the front and rear parts of the two fixed plates 3 close to each other are fixedly connected with connecting rods 4, the outer periphery of the connecting rod 4 is slidably connected with a plurality of slide plates 5, a chamber 13 is opened inside the plurality of slide plates 5, the top walls of the plurality of slide plates 5 are rotatably connected with bidirectional screws 6, the bottom ends of the plurality of bidirectional screws 6 penetrate the inner wall of the chamber 13, the upper and lower ends of the plurality of bidirectional screws 6 are threadedly connected with clamping plates 14, the upper and lower clamping plates 14 close to each other are fixedly connected with connecting rods 4, the outer periphery of the connecting rod 4 is slidably connected with a plurality of slide plates 5, the inner parts of the plurality of slide plates 5 are provided with chambers 13, the top walls of the plurality of slide plates 5 are rotatably connected with bidirectional screws 6, the bottom ends of the plurality of bidirectional screws 6 penetrate the inner wall of the chamber 13, the upper and lower ends of the plurality of bidirectional screws 6 are threadedly connected with clamping plates 14, the upper and lower clamping plates 14 close to each other are fixedly connected with connecting rods 4, the upper and lower clamping plates 14 close to each other are fixedly connected with connecting rods 4, the outer periphery of the connecting rod 4 is slidably connected with a plurality of slide plates 5, the inner parts of the plurality of slide plates 5 are provided with chambers 13, A groove 15 is provided at the rear part, and a plurality of grooves 15 are slidably connected with a clamping block 17, and the far-away sides of the front and rear clamping blocks 17 are fixedly connected with one end of a spring three 18, and the other ends of the plurality of springs three 18 are fixedly connected to the inner wall of the groove 15; a plurality of bidirectional screws 16 are provided with a limit rod 12 at the rear side, and the upper and lower ends of the plurality of limit rods 12 penetrate the clamping plate 14 and are fixedly connected to the inner wall of the chamber 13; a plurality of clamping blocks 17 are penetrated by a limit rod 2 16 in the middle part, and the front and rear ends of the plurality of limit rods 2 16 are fixedly connected to the front and rear walls of the groove 15, and a plurality of springs three 18 are arranged on the periphery of the limit rod 2 16;

[0039] Specifically, when the gas pipe passes through the fixed plate 3 and the slide plate 5 in sequence, the staff can drive the two connected clamping plates 14 to move by rotating the bidirectional screw rod 16; because the clamping plate 14 is limited by the limiting rod 12 and cannot rotate, the two clamping plates 14 can simultaneously move closer or farther away along the bidirectional screw rod 16 when the bidirectional screw rod 16 rotates; when the two clamping plates 14 are close to each other, the clamping block 17 on the corresponding clamping plate 14 can be driven to move and contact the gas pipe. As the gas pipe is clamped, the clamping blocks 17 on the front and rear sides will also be moved away from each other due to the pressure of the gas pipe; and the clamping block 17 will compress the spring three 18 when moving, so that the two clamping blocks 17 can be brought closer to each other under the action of the spring three 18, so that the gas pipe can be limited; and the clamping block 17 is also limited by the limiting rod two 16 when moving, so as to ensure the stability of the clamping block 17 moving in the groove 15 and prevent the spring three 18 from bending when being compressed; thereby achieving the effect of clamping and fixing gas pipes of different specifications.

[0040] Reference Figure 1 , Figure 2 and Figure 4The positioning mechanism 2 includes a moving plate 207, which is slidably connected to the inner wall of the base 1. The front and rear sides of the bottom wall of the moving plate 207 are fixedly connected to springs 209. The bottom ends of the two springs 209 are fixedly connected to the inner bottom wall of the base 1. The top wall of the moving plate 207 is fixedly connected to a positioning plate 204. The top of the positioning plate 204 passes through the top wall of the base 1. A slot 205 is opened in the middle of the positioning plate 204. A moving groove 201 is formed on one side of the middle of the top wall of the base 1. The inner wall of the moving groove 201 is fixedly connected to a spring One end of the spring 1 202 and the other end of the spring 1 202 are fixedly connected with an insert block 203, one end of the insert block 203 penetrates the inner wall of the base 1 and abuts against the positioning plate 204; the front and rear sides of the inner bottom wall of the base 1 are fixedly connected with positioning rods 208, the top ends of the two positioning rods 208 penetrate the moving plate 207 and are fixedly connected to the inner top wall of the chamber 13, and the two springs 3 18 are arranged on the outer periphery of the positioning rods 208; the inner wall of the moving groove 201 is fixedly connected with a guide rod 206, and one end of the guide rod 206 penetrates into the insert block 203;

[0041] Specifically, when the gas pipe is inserted into the slide plate 5, the two gas pipes can be fixed after they are respectively in contact with the two side walls of the positioning plate 204, so that the two gas pipes can be positioned; then, when the two gas pipes are heated and welded, the hot melt plate will move between the two gas pipes, and during the movement, it will contact the positioning plate 204 and press the positioning plate 204 to retract into the base 1; the positioning plate 204 will also drive the slot 205 to move when it moves, and when the slot 205 on the positioning plate 204 coincides with the insert block 203, the insert block 203 can be pushed out and inserted into the slot 205 under the action of the spring 1 202 to position the positioning plate 204; then The close ends of the two gas pipes can be heated by the hot melt plate, and when the welding is completed and the gas pipe is pulled out, the plug block 203 can be pulled out from the slot 205, and the stability of the plug block 203 and the spring 1 202 can be guaranteed under the action of the guide rod 206; because the positioning plate 204 squeezes the spring 209 through the movable plate 207 when moving downward, the positioning plate 204 can be pushed out and reset under the action of the spring 209; at the same time, the stability of the movable plate 207 and the spring 209 can be guaranteed under the action of the positioning rod 208, thereby achieving the effect of positioning the gas pipe without affecting the heating of the gas pipe.

[0042] Reference Figure 1 and Figure 2 , both sides of the front part of the top wall of the base 1 are provided with slide grooves 9, one side of the base 1 is fixedly connected with a servo motor 7, the output end of the servo motor 7 passes through the slide groove 9 on one side and is fixedly connected with a bidirectional screw 8, one end of the bidirectional screw 8 passes through the inner wall of the slide groove 9 on the other side, and both ends of the bidirectional screw 8 are threadedly connected with a slider 19, two slide plates 5 on one side are fixedly connected with the slider 19 on one side, and two slide plates 5 on the other side are fixedly connected with the slider 19 on the other side;

[0043] Specifically, the servo motor 7 can drive the bidirectional screw 8 at the output end to rotate; when the bidirectional screw 8 rotates, it can drive the sliders 19 connected at both ends to move, so that the slide plate 5 connected to the slider 19 can drive the two gas pipes to move closer to or away from each other; and after heating the close ends of the two gas pipes, the two gas pipes can be brought closer to each other and cooled in close proximity, so that the two gas pipes are welded together.

[0044] Reference Figure 1 and Figure 2 The rear walls of the two fixing plates 3 are fixedly connected with brackets 10, and a hot melt machine 11 is arranged on the adjacent sides of the two brackets 10;

[0045] Specifically, the hot melt machine 11 can heat the ends of the two gas pipes to be welded, so as to ensure the subsequent welding of the two gas pipes.

[0046] Working principle: In actual use, the two connected clamping plates 14 can be driven to approach each other by rotating the bidirectional screw rod 16. When the two clamping plates 14 approach each other, the clamping block 17 can be driven to move and contact the gas pipe. As the gas pipe is clamped, the clamping blocks 17 on the front and rear sides will move away from each other and compress the spring 3 18. Therefore, under the action of the spring 3 18, the two clamping blocks 17 can be brought close to each other, so that the gas pipe can be limited to achieve the effect of clamping and fixing gas pipes of different specifications. In addition, when the gas pipe is inserted into the slide plate 5, when the gas pipe is in contact with the fixed The positioning plate 204 can be fixed after abutting; when the two gas pipes are welded, the hot melt plate will rotate between the two gas pipes and apply pressure to the positioning plate 204, so that the positioning plate 204 is retracted into the base 1; and when the slot 205 on the positioning plate 204 coincides with the plug 203, the plug 203 can be pushed out and inserted into the slot 205 under the action of the spring 202 to position the positioning plate 204; and the hot melt plate can heat the close ends of the two gas pipes, thereby achieving the effect of positioning the gas pipes without affecting the heating of the gas pipes.

[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas pipe automatic welding device, comprising a base (1), characterized in that: A positioning mechanism (2) is provided in the base (1), and both sides of the top wall of the base (1) are fixedly connected with fixing plates (3), and the front and rear parts of the two fixing plates (3) close to each other are fixedly connected with connecting rods (4), and the outer periphery of the connecting rod (4) is slidably connected with a plurality of slide plates (5), and a chamber (13) is provided inside the plurality of slide plates (5), and the top walls of the plurality of slide plates (5) are rotatably connected with a bidirectional screw rod (6), and the bottom ends of the plurality of bidirectional screw rods (6) penetrate the inner wall of the chamber (13), and the upper and lower ends of the plurality of bidirectional screw rods (6) are threadedly connected with clamping plates (14), and the front and rear parts of the close sides of the upper and lower clamping plates (14) are provided with grooves (15), and the plurality of grooves (15) are slidably connected with clamping blocks (17), and the sides of the front and rear clamping blocks (17) away from each other are fixedly connected with one end of a spring three (18), and the other ends of the plurality of spring three (18) are fixedly connected to the inner wall of the groove (15).

2. The automatic welding device for gas pipe fittings according to claim 1 is characterized in that: The positioning mechanism (2) comprises a movable plate (207), the movable plate (207) being slidably connected to the inner wall of the base (1), the front and rear sides of the bottom wall of the movable plate (207) being fixedly connected to springs 2 (209), the bottom ends of the two springs 2 (209) being fixedly connected to the inner bottom wall of the base (1), the top wall of the movable plate (207) being fixedly connected to a positioning plate (204), the top end of the positioning plate (204) passing through the top wall of the base (1), a slot (205) being provided in the middle of the positioning plate (204), a movable groove (201) being provided at one side of the middle of the top wall of the base (1), one end of a spring 1 (202) being fixedly connected to the inner wall of the movable groove (201), the other end of the spring 1 (202) being fixedly connected to an insert block (203), one end of the insert block (203) passing through the inner wall of the base (1) and abutting against the positioning plate (204).

3. The automatic welding device for gas pipe fittings according to claim 1 is characterized in that: A plurality of the bidirectional screw rods (6) are each provided with a limiting rod (12) at the rear side, and the upper and lower ends of the plurality of limiting rods (12) pass through the clamping plate (14) and are fixedly connected to the inner wall of the chamber (13).

4. The automatic welding device for gas pipe fittings according to claim 1, characterized in that: The middle parts of the plurality of clamping blocks (17) all penetrate the limiting rod 2 (16), the front and rear ends of the plurality of limiting rods 2 (16) are fixedly connected to the front and rear walls inside the groove (15), and the plurality of springs 3 (18) are all arranged on the outer periphery of the limiting rod 2 (16).

5. The automatic welding device for gas pipe fittings according to claim 1 is characterized in that: Slide grooves (9) are provided on both sides of the front part of the top wall of the base (1); a servo motor (7) is fixedly connected to one side of the base (1); an output end of the servo motor (7) passes through the slide groove (9) on one side and is fixedly connected to a bidirectional screw rod (8); one end of the bidirectional screw rod (8) passes through the inner wall of the slide groove (9) on the other side; both ends of the bidirectional screw rod (8) are threadedly connected to sliders (19); the two sliders (5) on one side are fixedly connected to the slider (19) on one side, and the two sliders (5) on the other side are fixedly connected to the slider (19) on the other side.

6. The automatic welding device for gas pipe fittings according to claim 1, characterized in that: The rear walls of the two fixed plates (3) are both fixedly connected with brackets (10), and a hot melt machine (11) is arranged on the adjacent sides of the two brackets (10).

7. The automatic welding device for gas pipe fittings according to claim 2 is characterized in that: Positioning rods (208) are fixedly connected to the front and rear sides of the inner bottom wall of the base (1); the top ends of the two positioning rods (208) penetrate the movable plate (207) and are fixedly connected to the inner top wall of the chamber (13); and the two springs (18) are arranged on the outer periphery of the positioning rods (208).

8. The automatic welding device for gas pipe fittings according to claim 2, characterized in that: A guide rod (206) is fixedly connected to the inner side wall of the movable groove (201), and one end of the guide rod (206) penetrates into the insert block (203).

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