Lifting type longitudinal seam welding device

Abstract

The utility model discloses a lifting type longitudinal seam welding device which comprises a base, a vertical frame fixedly installed on the base and a transverse machine frame movably installed on the left side of the vertical frame, a flexible hinge moving device capable of moving flexibly is arranged on the transverse machine frame, and a welding machine is movably installed on the transverse machine frame through the flexible hinge moving device. And a welding gun is also arranged on the welding machine. Through the cooperation of the push rod motor and the arc-shaped positioning plate, the cylinder workpiece can be quickly positioned; the lifting motor is used for driving the frame, the rotating shaft and the roller to move upwards, the auxiliary supporting effect on the barrel workpiece is achieved, the pressure of the rotating supporting column is reduced, in this way, the stability of the barrel workpiece in the subsequent longitudinal seam welding process can be guaranteed, meanwhile, the position of a longitudinal seam in the barrel workpiece can be accurately adjusted, and the welding efficiency is improved. Precise welding of the longitudinal seam by the welding gun is ensured, so that the welding quality is ensured, and the whole device is relatively simple in structure and convenient to operate and adjust.

Description

Technical Field

[0001] The utility model relates to the field of welding devices, in particular to a lifting type longitudinal seam welding device. Background Art

[0002] As we all know, the lifting type longitudinal seam welding device is a welding device, mainly used for longitudinal seam welding of medium and thin wall cylinders. It can weld workpieces with a diameter of 300-5000mm, a thickness of 3.0-12mm, and a length of less than 3000mm. It is suitable for welding materials such as carbon steel, stainless steel, titanium alloy, aluminum and its alloys.

[0003] When in use, place the workpiece on the lifting longitudinal seam welding device, and adjust the height and position of the device to make the welding part in a suitable welding position. Then, start the welding equipment. The welding equipment can be flexibly moved on the horizontal frame through the flexible hinge moving device of the U-shaped structure. The welding equipment is equipped with a welding gun, which can move horizontally to accurately weld the longitudinal seam. The flexible hinge moving device that can be flexibly moved can be driven by a variety of power sources. The common ones are as follows: (1) Motor: such as DC motor, stepper motor, etc., which is driven by electric energy to drive the device. (2) Air pressure: The pressure of compressed air is used to push the device. (3) Hydraulic: Power is provided by the hydraulic system. This welding device has the characteristics of simple operation, safe use, and high efficiency. It can improve the quality and efficiency of welding and is widely used in food machinery, dyeing and finishing equipment, power switch busbar barrel, medical machinery, special material chemical containers and other fields.

[0004] However, the existing lifting type longitudinal seam welding device still has the following technical problems during use: how to quickly position the cylindrical workpiece and how to ensure stability during the positioning process so as to ensure subsequent stable welding use; and how to adjust the longitudinal seam position of the cylindrical workpiece. Since the existing technology cannot ensure that the longitudinal seam position on the cylindrical workpiece is aligned below the welding gun after the cylindrical workpiece is positioned and fixed, it is difficult to ensure the accuracy of welding, which affects normal welding use. Therefore, the utility model proposes a lifting type longitudinal seam welding device. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a lifting type longitudinal seam welding device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A lifting longitudinal seam welding device comprises a base, a vertical frame fixedly mounted on the base, and a horizontal frame movably mounted on the left side of the vertical frame, a flexible hinge moving device that can be flexibly moved is arranged on the horizontal frame, and a welding machine is movably mounted on the horizontal frame through the flexible hinge moving device, and a welding gun is also arranged on the welding machine, and a horizontally arranged rotating pillar is rotatably mounted on the vertical frame located at the lower side of the welding gun, a push rod motor is fixedly mounted on the top and bottom of the rotating pillar, and an arc-shaped positioning plate for positioning a cylindrical workpiece is fixedly connected to the output end of the push rod motor; a first mounting groove is arranged on the right side of the vertical frame, the right end of the rotating pillar rotates and penetrates into the first mounting groove and is fixedly sleeved with a gear, an electric telescopic rod is fixedly mounted on the bottom inner wall of the first mounting groove, and a spur rack is fixedly connected to the output end of the electric telescopic rod, and the spur rack is meshed with the gear transmission;

[0008] A lifting slide is fixedly connected to the right end of the horizontal frame, and a second mounting groove is provided on the upper left side of the vertical frame. The lifting slide is slidably installed in the second mounting groove along the vertical direction. A screw rod is rotatably installed in the second mounting groove, and the screw rod is threadedly connected to the lifting slide. A stepper motor is fixedly installed on the top inner wall of the second mounting groove, and the stepper motor is fixedly connected to the top end of the screw rod; the base is also provided with an auxiliary support component for auxiliary support of the cylindrical workpiece.

[0009] Furthermore, the lifting slide is provided with a mounting hole, a screw nut is fixedly installed in the mounting hole, and the screw is threadably connected to the screw nut.

[0010] Furthermore, a guide slide block is provided on the right side of the lifting slide seat, a guide slide block is provided on the right inner wall of the second installation groove, and the guide slide block is slidably installed in the guide slide block along the vertical direction.

[0011] Furthermore, the auxiliary support assembly includes a support groove provided on the base, a lifting motor is fixedly installed in the support groove, a frame is fixedly installed at the output end of the lifting motor, a plurality of rollers are rotatably installed in the frame through a rotating shaft, and the top side of the rollers extends to the top of the frame and is used to provide auxiliary support to the bottom side of the cylindrical workpiece.

[0012] Furthermore, a bearing is fixedly mounted on the left inner wall of the first mounting groove, and the rotating support is rotatably mounted on the bearing.

[0013] Furthermore, a controller is also provided on the right side of the welding machine, and the controller is electrically controlled and connected to the welding machine, the stepping motor, the lifting motor, the electric telescopic rod and the push rod motor respectively.

[0014] By adopting the above structure, the utility model has the following beneficial effects:

[0015] 1. In the utility model, the positioning of the cylindrical workpiece can be quickly realized through the cooperation of the push rod motor and the arc positioning plate; and the lifting motor is also used to drive the frame, the rotating shaft and the roller to move upward, which plays an auxiliary supporting role for the cylindrical workpiece and reduces the pressure of the rotating support. In this way, the stability of the cylindrical workpiece in the subsequent longitudinal seam welding process can be guaranteed, and the welding quality can be ensured.

[0016] 2. In the utility model, the position of the longitudinal seam on the cylindrical workpiece can be accurately adjusted through the mutual cooperation of the electric telescopic rod, the spur rack, the gear, etc., to ensure the accurate welding of the longitudinal seam by the welding gun, so as to further ensure the welding quality, and the structure of the whole device is relatively simple, easy to operate and adjust, and further improves the practicality of welding use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a lifting type longitudinal seam welding device proposed by the utility model;

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the top view of the structure between the roller and the frame in the utility model;

[0020] Figure 4 It is a side view of the barrel workpiece, the rotating support, the push rod motor and the arc positioning plate in the utility model.

[0021] In the figure: 1, base; 101, supporting groove; 2, stand; 201, first mounting groove; 202, second mounting groove; 3, rotating pillar; 4, cylindrical workpiece; 5, horizontal frame; 6, flexible hinge moving device; 7, welding machine; 701, welding gun; 8, roller; 801, lifting motor; 802, frame; 803, rotating shaft; 9, electric telescopic rod; 10, spur rack; 11, gear; 12, push rod motor; 13, arc positioning plate; 14, stepping motor; 15, lead screw; 16, lead screw nut; 17, lifting slide; 18, controller; 19, bearing. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-4A lifting longitudinal seam welding device comprises a base 1, a stand 2 fixedly mounted on the base 1, and a transverse frame 5 movably mounted on the left side of the stand 2, a flexible hinge moving device 6 that can be flexibly moved is provided on the transverse frame 5, and a welding machine 7 is movably mounted on the transverse frame 5 through the flexible hinge moving device 6, and a welding gun 701 is also provided on the welding machine 7, and a transversely arranged rotating support 3 is rotatably mounted on the stand 2 located at the lower side of the welding gun 701, and a push rod motor 12 is fixedly mounted on the top and bottom of the rotating support 3, and an arc-shaped positioning plate 13 for positioning a cylindrical workpiece 4 is fixedly connected to the output end of the push rod motor 12; a first mounting groove 201 is provided on the right side of the stand 2, and the right end of the rotating support 3 rotates and penetrates into the first mounting groove 201 A gear 11 is fixedly sleeved thereon, an electric telescopic rod 9 is fixedly mounted on the bottom inner wall of the first mounting groove 201, and a spur rack 10 is fixedly connected to the output end of the electric telescopic rod 9, and the spur rack 10 is in transmission meshing engagement with the gear 11; a lifting slide 17 is fixedly connected to the right end of the horizontal frame 5, and a second mounting groove 202 is provided on the upper left side of the vertical frame 2, and the lifting slide 17 is slidably installed in the second mounting groove 202 along the vertical direction, a screw rod 15 is rotatably installed in the second mounting groove 202, and the screw rod 15 is threadedly connected to the lifting slide 17, a stepping motor 14 is fixedly mounted on the top inner wall of the second mounting groove 202, and the stepping motor 14 is fixedly connected to the top end of the screw rod 15; the base 1 is also provided with an auxiliary support component for auxiliary support of the cylindrical workpiece 4.

[0024] In this embodiment, a mounting hole is provided on the lifting slide 17, a screw nut 16 is fixedly installed in the mounting hole, and the screw 15 is threadedly connected to the screw nut 16; a guide slider is provided on the right side of the lifting slide 17, and a guide groove is provided on the right inner wall of the second mounting groove, and the guide slider is slidably installed in the guide groove along the vertical direction.

[0025] In this embodiment, the auxiliary support assembly includes a support groove 101 provided on the base 1, a lifting motor 801 is fixedly installed in the support groove 101, a frame 802 is fixedly installed at the output end of the lifting motor 801, and a plurality of rollers 8 are rotatably installed in the frame 802 through a rotating shaft 803, and the top side of the roller 8 extends to the top of the frame 802 and is used to provide auxiliary support to the bottom side of the cylindrical workpiece 4.

[0026] In this embodiment, a bearing 19 is fixedly installed on the left inner wall of the first mounting groove 201, and the rotating support 3 is rotatably installed on the bearing 19; a controller 18 is also provided on the right side of the welding machine 7, and the controller 18 is electrically controlled and connected with the welding machine 7, the stepping motor 14, the lifting motor 801, the electric telescopic rod 9 and the push rod motor 12 respectively.

[0027] like Figure 1-4The lifting type longitudinal seam welding device shown in the figure, when in use: firstly, the rotating support 3 and the arc positioning plate 13 are placed in the cylindrical workpiece 4, and the output ends of the two push rod motors 12 are extended at the same time to drive the two arc positioning plates 13 away from each other, and then the cylindrical workpiece 4 can be positioned (such as Figure 2 As shown in the figure, the relative fixation of the cylindrical workpiece 4 is realized; then the lifting motor 801 is used to drive the frame 801, the rotating shaft 802 and the roller 8 to move upward, and the bottom side of the cylindrical workpiece 4 is placed on the roller 8, which can play a role of auxiliary support and reduce the supporting pressure on the rotating pillar 3; then the stepping motor 14 is used to drive the screw rod 15 to rotate, so that the lifting slide 17 is threaded downward along the screw rod 15 through the screw nut 16. When the lifting slide 17 moves downward, it also drives the flexible hinge moving device 6, the welding machine 7, and the welding gun 701 to descend as a whole through the horizontal frame 5, and then the welding gun 701 is used to weld the longitudinal seam on the cylindrical workpiece 4. Moreover, during the welding process, the longitudinal seam position on the cylindrical workpiece 4 can be adjusted according to actual needs, that is, by extending and retracting the output end of the electric telescopic rod 9, the spur rack 10 is driven to move upward or downward, and the spur rack 10 is meshed with the gear 11 when moving, so that the gear 11 can be reversed. When the gear 11 rotates, it also drives the rotating support 3, the push rod motor 12, and the cylindrical workpiece 4 fixed by the arc-shaped positioning plate 13 to rotate forward and reverse, so that the specific longitudinal seam position on the cylindrical workpiece 4 can be adjusted forward and reverse to ensure that the welding gun 701 can accurately weld the longitudinal seam on the cylindrical workpiece 4. The structure is simple and easy to adjust and use, which further improves the practicality of welding.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lifting type longitudinal seam welding device, comprising a base (1), a stand (2) fixedly mounted on the base (1), and a transverse frame (5) movably mounted on the left side of the stand (2), the transverse frame (5) being provided with a flexible hinge moving device (6) that can be flexibly moved, and a welding machine (7) being movably mounted on the transverse frame (5) via the flexible hinge moving device (6), and a welding gun (701) being further provided on the welding machine (7), characterized in that: A horizontally arranged rotating support (3) is rotatably mounted on a stand (2) located at the lower side of the welding gun (701), a push rod motor (12) is fixedly mounted on the top and bottom of the rotating support (3), and an output end of the push rod motor (12) is fixedly connected to an arc-shaped positioning plate (13) for positioning the cylindrical workpiece (4); a first mounting groove (201) is provided on the right side of the stand (2), the right end of the rotating support (3) rotates through the first mounting groove (201) and is fixedly sleeved with a gear (11), an electric telescopic rod (9) is fixedly mounted on the bottom inner wall of the first mounting groove (201), the output end of the electric telescopic rod (9) is fixedly connected to a spur rack (10), and the spur rack (10) is in transmission meshing engagement with the gear (11); The right end of the horizontal frame (5) is fixedly connected with a lifting slide (17), and the upper left part of the vertical frame (2) is provided with a second installation groove (202), and the lifting slide (17) is slidably installed in the second installation groove (202) along the vertical direction, and a screw rod (15) is rotatably installed in the second installation groove (202), and the screw rod (15) is threadedly connected to the lifting slide (17), and a stepper motor (14) is fixedly installed on the top inner wall of the second installation groove (202), and the stepper motor (14) is fixedly connected to the top of the screw rod (15); the base (1) is also provided with an auxiliary support component for auxiliary support of the cylindrical workpiece (4).

2. The lifting type longitudinal seam welding device according to claim 1, characterized in that: The lifting slide seat (17) is provided with a mounting hole, a screw nut (16) is fixedly mounted in the mounting hole, and the screw (15) is threadedly connected to the screw nut (16).

3. The lifting type longitudinal seam welding device according to claim 1, characterized in that: A guide slide block is arranged on the right side of the lifting slide seat (17), and a guide slide block is arranged on the right inner wall of the second installation groove (202), and the guide slide block is slidably installed in the guide slide block along the vertical direction.

4. The lifting type longitudinal seam welding device according to claim 1, characterized in that: The auxiliary support assembly comprises a support groove (101) provided on a base (1), a lifting motor (801) being fixedly installed in the support groove (101), a frame (802) being fixedly installed at the output end of the lifting motor (801), a plurality of rollers (8) being rotatably installed in the frame (802) via a rotating shaft (803), and the top sides of the rollers (8) extending to the top of the frame (802) and being used to provide auxiliary support to the bottom side of the cylindrical workpiece (4).

5. The lifting type longitudinal seam welding device according to claim 1, characterized in that: A bearing (19) is fixedly mounted on the left inner wall of the first mounting groove (201), and the rotating support (3) is rotatably mounted on the bearing (19).

6. The lifting type longitudinal seam welding device according to claim 1, characterized in that: A controller (18) is also provided on the right side of the welding machine (7), and the controller (18) is electrically controlled and connected to the welding machine (7), the stepping motor (14), the lifting motor (801), the electric telescopic rod (9) and the push rod motor (12) respectively.

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