Automatic gas cylinder welding device

Abstract

The utility model relates to an automatic gas cylinder welding device which comprises a front support and a rear support, a support capable of enabling a gas cylinder to rotate is arranged on the front support, a first air cylinder and two parallel mechanical arms are arranged on the rear support, and each mechanical arm comprises a large arm and a small arm arranged at the front end of the large arm. The middle of the large arm is hinged to the rear support through a first transverse shaft, the rear end of the large arm is hinged to the first air cylinder through a second transverse shaft, the small arm is connected with the large arm through a transverse moving component, a welding gun and a position sensing mechanism are arranged at the front end of the small arm, and an image recognition component is arranged at the rear end of the small arm. According to the device, by automatically adjusting the positions and coordinates of the welding gun and the welding path, preparation before welding is rapidly carried out, manual intervention is reduced, the welding speed can be increased, and the welding quality is also improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas cylinder processing technical field especially relates to a gas cylinder automatic welding device. BACKGROUND

[0002] In industrial production, as an important storage device, the quality and safety of gas cylinders are crucial. In the manufacturing process of gas cylinders, girth welding is one of the key process links. The traditional girth welding method usually relies on manual operation, and the welder needs to hold the welding gun and walk around the workpiece for welding, which not only has low work efficiency, but also has the risk of unstable welding quality. With the continuous development of industrial automation technology, automated welding equipment has been gradually applied to various industrial production fields to improve production efficiency and welding quality.

[0003] At present, there are some automated welding equipment on the market. Although the conventional automated welding equipment can achieve a certain degree of automated welding, it still needs manual assistance or multiple positioning adjustments when processing gas cylinder girth welding, which not only increases the operation complexity, but also limits the improvement of welding efficiency. SUMMARY

[0004] In order to overcome the shortcomings in the above background art, the purpose of the utility model is to provide a gas cylinder automatic welding device, which can realize automatic adjustment and positioning of the welding gun and reduce the participation of manual work.

[0005] The technical scheme is: a gas cylinder automatic welding device, comprising a front support and a rear support, the front support is provided with a support that can rotate the gas cylinder, the rear support is provided with a first cylinder and two mutually parallel mechanical arms, the mechanical arm comprises a large arm and a small arm arranged at the front end of the large arm, the middle part of the large arm is hinged to the rear support through a first horizontal shaft, the rear end of the large arm is hinged to the first cylinder through a second horizontal shaft, the small arm is connected with the large arm through a horizontal moving part, the front end of the small arm is provided with a welding gun and a position sensing mechanism, and the rear end of the small arm is provided with an image recognition part.

[0006] As an improvement of the above scheme, the position sensing mechanism comprises a sleeve arranged at the front end of the small arm, a pressure sensor, a spring and a straight rod are sequentially arranged in the lumen of the sleeve, one end of the straight rod extends to the outside of the lumen and a rotatable abutting wheel is arranged at the front end thereof, and the end away from the straight rod of the sleeve is provided with an openable end cover.

[0007] As the improvement of the above-mentioned scheme, the welding torch is connected with the small arm through a fine adjustment component, the fine adjustment component comprises a welding torch mounting clamp, a first pin shaft, a second pin shaft and a fifth cylinder, the welding torch mounting clamp is used for clamping the welding torch, two shaft holes are formed in the welding torch mounting clamp, the first pin shaft and the second pin shaft are arranged in the two shaft holes respectively, the first pin shaft is connected with the small arm, the second pin shaft is connected with the telescopic rod of the fifth cylinder, and the fifth cylinder is mounted on the small arm.

[0008] As the improvement of the above-mentioned scheme, the transverse moving component comprises a linear slide and a second cylinder, the slide rail part of the linear slide is transversely mounted at the front end of the large arm, the slide part of the linear slide is mounted at the rear end of the small arm, the second cylinder is mounted on the large arm, and the telescopic rod of the second cylinder is connected with the slide part.

[0009] As the improvement of the above-mentioned scheme, the front support comprises two side support plates arranged in parallel, the bottom of each side support plate is provided with a slide rail, the bottom of each side support plate is provided with a sliding groove matched with the slide rail, the top of each side support plate is horizontally provided with a fourth cylinder, the piston rod of the fourth cylinder is provided with a clamping plate, a third cylinder is arranged on the slide rail, the telescopic rod of the third cylinder is connected with the side support plate, and the moving direction of the third cylinder is consistent with the moving direction of the side support plate.

[0010] As the improvement of the above-mentioned scheme, the support comprises two third horizontal shafts arranged horizontally, the two ends of each third horizontal shaft are arranged on the two side support plates respectively, a plurality of rubber wheels are arranged on each third horizontal shaft at intervals in the length direction, one third horizontal shaft is drivingly connected with a driving motor, and the driving motor is mounted on one side support plate.

[0011] As the improvement of the above-mentioned scheme, the position sensing mechanism further comprises a distance measuring radar.

[0012] As the improvement of the above-mentioned scheme, the first horizontal shaft is a lead screw, the large arm is provided with a nut matched with the lead screw, and one end of the lead screw is provided with a rotating wheel.

[0013] The utility model has the advantages of the following:

[0014] 1、The utility model discloses a position sensing mechanism can real -time monitoring welding torch and the relative position of the weld, ensure that welding torch always keeps in the best welding distance, the image recognition part of back end setting can carry out high accuracy identification to the welding path, ensure that welding torch and the welding path are in the same plane, in addition, first air cylinder can drive welding torch to draw close or away from gas cylinder through mechanical arm, to realize welding torch fast draw close gas cylinder welding position, and can be applicable to various size's gas cylinder, the horizontal shift part can carry out the fine adjustment to small arm, further improve the welding accuracy. The device passes through the position and the coordinate of automatic regulation welding torch and the welding path, and quickly enters the preparation before welding, reduces the intervention of manual, can promote the welding speed also, improved the welding quality.

[0015] 2、The utility model discloses a pressure sensor and spring's combination can accurately perceive the force variation when welding torch and workpiece contact, and then adjust the welding parameter to keep the best welding pressure, and the rotatable design of abutment wheel reduces the friction resistance, ensures the sensitivity and accuracy of position sensing. The openable design of end cover is convenient for maintaining and replacing internal components, improves the maintainability of equipment.

[0016] 3、The utility model discloses a fine adjustment part passes through the cooperation of fifth air cylinder and first pin shaft and second pin shaft, realizes the fine adjustment to welding torch position coordinate, further reduces the manual intervention, improves the operation efficiency.

[0017] 4、The utility model discloses a linear slide table and the combined use of second air cylinder make small arm move more stably and accurately in the horizontal direction, improve the flexibility and stability of welding operation.

[0018] 5、The utility model discloses a side support plate can be longitudinally adjusted through slide rail and third air cylinder, and then adjust the position of gas cylinder, in addition, through fourth air cylinder and clamping plate, can clamp gas cylinder in horizontal direction, make it keep stable.

[0019] 6、The utility model discloses a driving motor drives third cross shaft to rotate, and then realizes the automatic rotation of gas cylinder, improves the continuity and efficiency of welding operation.

[0020] 7、The joining of distance measuring radar further improves the accuracy and real -time of position sensing, can accurately measure the small distance change between welding torch and weld, provides reliable basis for the real -time adjustment of welding parameter, ensures the stability of welding quality.

[0021] 8、The utility model discloses the combined use of lead screw and nut, it is convenient to carry out preliminary large -scale position calibration before automatic operation, to adapt to more size's gas cylinder. DRAWINGS

[0022] Figure 1 It is the three -dimensional structure schematic diagram of the utility model discloses.

[0023] Figure 2 It is a local structure schematic view of the utility model.

[0024] Figure 3 It is a structure schematic view of setting fine adjustment component and welding torch on the forearm of the utility model.

[0025] Figure 4 It is a sectional view of the position sensing mechanism of the utility model.

[0026] Figure mark name: 1a, front support, 1a1, side support plate, 1a2, slide rail, 1a3, third cylinder, 1a4, fourth cylinder, 1b, rear support, 2, support, 21, third horizontal shaft, 22, rubber wheel, 23, driving motor, 3, first cylinder, 4, big arm, 41, first horizontal shaft, 42, second horizontal shaft, 5, small arm, 6, horizontal moving component, 61, linear slide table, 61a, slide rail part, 61b, slide table part, 62, second cylinder, 7, welding torch, 8, position sensing mechanism, 81, sleeve, 81a, lumen, 82, pressure sensor, 83, spring, 84, straight rod, 85, abutment wheel, 86, end cover, 8a, distance measuring radar, 9, fine adjustment component, 91, welding torch mounting clamp, 91a, shaft hole, 92, first pin shaft, 93, second pin shaft, 94, fifth cylinder, 10, image recognition component. DETAILED DESCRIPTION

[0027] The above scheme is further described in combination with specific embodiments. It should be understood that these embodiments are used to illustrate the present application and do not limit the scope of the present application. The implementation conditions used in the embodiments can be further adjusted according to the specific conditions of the manufacturer, and the implementation conditions not mentioned are usually the conditions in the conventional experiment.

[0028] As Figures 1-4The automatic welding device for gas cylinder includes a front support 1a and a rear support 1b, the front support 1a is provided with a support 2 for rotating the gas cylinder, the rear support 1b is provided with a first cylinder 3 and two parallel mechanical arms, the mechanical arms are composed of a large arm 4 and a small arm 5, the two mechanical arms can correspond to the ring seams at the two ends of the gas cylinder and can be synchronized, the small arm 5 is installed at the front end of the large arm 5 through a horizontal moving part 6, the horizontal moving part 6 can make the small arm 5 fine-tune in the horizontal direction, the middle part of the large arm 4 is hinged to the rear support 1b through a first horizontal shaft 41, the rear end of the large arm 4 is hinged to the first cylinder 3 through a second horizontal shaft 42, the first cylinder 3 is vertically arranged with the front end downward, the shell of the first cylinder 3 is also hinged to the rear support 1b, the telescopic rod of the first cylinder 3 controls the mechanical arm to move along the first horizontal shaft 41, so that the welding gun 7 installed at the front end of the small arm 5 can quickly approach the cylinder body of the gas cylinder, in addition, the front end of the small arm 5 is also provided with a position sensing mechanism 8, the distance between the welding gun and the cylinder body of the gas cylinder can be accurately judged through the sensing mechanism 8, so as to quickly adjust the position and coordinates of the welding gun, further, an image recognition part 10 is arranged at the rear end of the small arm 5, the image recognition part 10 can quickly and accurately judge the welding path through high-definition image acquisition, and collect path coordinate information, so as to make the welding gun keep the most accurate welding path and improve the welding precision.

[0029] As Figure 4 shown, the position sensing mechanism 8 specifically includes a sleeve 81 and a pressure sensor 82, a spring 83 and a straight rod 84 arranged in the lumen 81a of the sleeve 81 in sequence, one end of the straight rod 84 extends to the outside of the lumen 81a and is provided with a rotatable abutting wheel 85 at the front end, the other end of the straight rod 84 abuts against the spring 83, one end of the spring 83 abuts against the pressure sensor 82 through a gasket, the abutting wheel 85 abuts against the cylinder body of the gas cylinder, as the distance decreases, the straight rod 84 compresses the spring, so that the pressure sensed by the pressure sensor 82 changes, thereby accurately sensing the distance between the welding gun 7 and the cylinder body of the gas cylinder, so as to adjust the position of the welding gun 7, one end of the sleeve 81 away from the straight rod 84 is provided with an open end cover 86 for facilitating maintenance of the internal parts.

[0030] To further improve the distance sensing between the welding gun and the cylinder body of the gas cylinder, the position sensing mechanism 8 is additionally provided with a distance measuring radar 8a. Through the double auxiliary position measurement of the distance measuring radar 8a and the pressure sensor 82, the welding gun can keep the best welding distance and welding pressure with the weld.

[0031] Referring to Figure 2The horizontal moving component 6 specifically comprises a linear slide 61 and a second cylinder 62, the linear slide 61 is composed of a slide rail part 61a and a slide part 61b, the slide rail part 61a is transversely installed at the front end of the large arm 4, the slide part 61b is installed at the rear end of the small arm 5, and the second cylinder 62 is installed on the large arm 4, and the telescopic rod of the second cylinder 62 is connected with the slide part 61b. The horizontal position of the small arm 5 can be finely adjusted through the horizontal moving component 6, so as to further adjust the position coordinates of the front end welding gun 7.

[0032] As shown in Figure 3 , the welding gun 7 is connected with the small arm 5 through the fine adjustment component 9, the fine adjustment component 9 comprises a welding gun mounting clamp 91, a first pin shaft 92, a second pin shaft 93 and a fifth cylinder 94, the welding gun mounting clamp 91 is used for clamping the welding gun 7, two shaft holes 91a are formed in the welding gun mounting clamp 91, the first pin shaft 92 and the second pin shaft 93 are respectively arranged in the two shaft holes 91a, the first pin shaft 92 is connected with the small arm 5, the second pin shaft 93 is connected with the telescopic rod of the fifth cylinder 94, the fifth cylinder 94 is installed on the small arm 5, and the two are hingedly connected through the pin shaft. The fifth cylinder 94 drives the welding gun mounting clamp 91 to move along the first pin shaft 92 through the second pin shaft 93, so as to finely adjust the welding gun 7 to approach or move away from the welding seam.

[0033] Referring to Figure 1 , the front support 1a comprises two side support plates 1a1 arranged in parallel, the bottom of each side support plate 1a1 is provided with a slide rail 1a2, and the bottom of the side support plate 1a1 is provided with a sliding groove matched with the slide rail 1a2, the top of the side support plate 1a1 is horizontally provided with a fourth cylinder 1a4, a clamping plate is arranged on the piston rod of the fourth cylinder 1a4, and the clamping plate is rotatably connected with the piston rod of the fourth cylinder 1a4, the slide rail 1a2 is provided with a third cylinder 1a3, the telescopic rod of the third cylinder 1a3 is connected with the side support plate 1a1, and the moving direction of the third cylinder 1a3 is consistent with the moving direction of the side support plate 1a1. The side support plate 1a1 can be driven to move along the slide rail 1a2 through the third cylinder 1a3, so as to adjust the position of the support 2 and the gas cylinder on the side support plate 1a1, thereby adapting to gas cylinders of more sizes. In the embodiment, the support 2 comprises two third horizontal shafts 21 arranged horizontally, the two ends of each third horizontal shaft 21 are correspondingly arranged on the two side support plates 1a1, and a plurality of rubber wheels 22 are arranged on each third horizontal shaft 21 in a length direction, and one third horizontal shaft 21 is in transmission connection with a driving motor 23, and the driving motor 23 is installed on one side support plate 1a1. The support 2 can drive the gas cylinder to rotate automatically, thereby improving the continuity and efficiency of the welding operation.

[0034] In a preferred embodiment, the first horizontal shaft 41 can be a screw rod, and a nut adapted to the screw rod is arranged on the big arm 4, and a rotating wheel is arranged at one end of the screw rod. The screw rod can preferably be a symmetric screw rod, so that the two big arms 4 can be adjusted in distance relative to each other. By using the combination of the screw rod and the nut, the distance between the two big arms can be greatly adjusted before welding.

[0035] In addition, it should be noted that all electrical equipment of the device is controlled by the integrated control center PLC, and the cooperation of the components is controlled by the PLC to realize efficient operation.

[0036] The above-described embodiments only express the preferred embodiments of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications, improvements and substitutions can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A gas cylinder automatic welding device, characterized in that, The application relates to a welding robot, which comprises a front support (1a) and a rear support (1b), the front support (1a) is provided with a support (2) for rotating a gas cylinder, the rear support (1b) is provided with a first gas cylinder (3) and two parallel mechanical arms (4, 5), the mechanical arms comprise a large arm (4) and a small arm (5) arranged at the front end of the large arm (4), the middle part of the large arm (4) is hinged to the rear support (1b) through a first horizontal shaft (41), the rear end of the large arm (4) is hinged to the first gas cylinder (3) through a second horizontal shaft (42), the small arm (5) is connected to the large arm (4) through a horizontal moving component (6), the front end of the small arm (5) is provided with a welding gun (7) and a position sensing mechanism (8), and the rear end of the small arm (5) is provided with an image recognition component (10).

2. The automatic welding device for gas cylinder as claimed in claim 1, wherein The position sensing mechanism (8) comprises a sleeve (81) arranged at the front end of the small arm (5), a pressure sensor (82), a spring (83) and a straight rod (84) are sequentially arranged in the lumen (81a) of the sleeve (81), one end of the straight rod (84) extends to the outside of the lumen (81a) and is provided with a rotatable abutting wheel (85) at the front end, and the end, away from the straight rod (84), of the sleeve (81) is provided with an open end cover (86).

3. The automatic welding device for gas cylinders according to claim 1 or 2, wherein The welding gun (7) is connected to the small arm (5) through a fine adjustment component (9), the fine adjustment component (9) comprises a welding gun mounting clamp (91), a first pin shaft (92), a second pin shaft (93) and a fifth gas cylinder (94), the welding gun mounting clamp (91) is used for clamping the welding gun (7), two shaft holes (91a) are formed in the welding gun mounting clamp (91), the first pin shaft (92) and the second pin shaft (93) are correspondingly arranged in the two shaft holes (91a), the first pin shaft (92) is connected to the small arm (5), the second pin shaft (93) is connected to the telescopic rod of the fifth gas cylinder (94), and the fifth gas cylinder (94) is mounted on the small arm (5).

4. The automatic welding device for gas cylinder as claimed in claim 3, wherein the welding head is provided with a plurality of welding torches. The horizontal moving component (6) comprises a linear slide (61) and a second gas cylinder (62), the slide rail part (61a) of the linear slide (61) is transversely mounted at the front end of the large arm (4), the slide table part (61b) of the linear slide (61) is mounted at the rear end of the small arm (5), the second gas cylinder (62) is mounted on the large arm (4), and the telescopic rod of the second gas cylinder (62) is connected to the slide table part (61b).

5. The automatic welding device for gas cylinder as claimed in claim 1, wherein The front support (1a) comprises two parallel side support plates (1a1), the bottom of each of the two side support plates (1a1) is provided with a slide rail (1a2), the bottom of each of the two side support plates (1a1) is provided with a sliding groove matched with the slide rail (1a2), the top of each of the two side support plates (1a1) is horizontally provided with a fourth gas cylinder (1a4), the piston rod of the fourth gas cylinder (1a4) is provided with a clamping plate, the slide rail (1a2) is provided with a third gas cylinder (1a3), the telescopic rod of the third gas cylinder (1a3) is connected to the side support plate (1a1), and the moving direction of the third gas cylinder (1a3) is consistent with the moving direction of the side support plate (1a1).

6. The automatic welding device for gas cylinder as claimed in claim 5, wherein The support (2) comprises two horizontally arranged third cross shafts (21), the two ends of the third cross shafts (21) are respectively arranged on the two side support plates (1a1), a plurality of rubber wheels (22) are arranged on the two third cross shafts (21) respectively and are spaced apart along the length direction, and one of the third cross shafts (21) is in transmission connection with a driving motor (23), and the driving motor (23) is installed on one of the side support plates (1a1).

7. The automatic welding device for gas cylinder as claimed in claim 2, wherein the welding head is provided with a plurality of welding torches. The position sensing mechanism (8) further comprises a ranging radar (8a).

8. The automatic welding device for gas cylinder as claimed in claim 1, wherein The first cross shaft (41) is a lead screw, the large arm (4) is provided with a nut matched with the lead screw, and one end of the lead screw is provided with a rotating wheel.

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