Fixed spot welding machine

Abstract

The utility model discloses a fixed spot welding machine, which relates to the technical field of electric welding machines and comprises an equipment platform, clamping mechanisms distributed up and down are arranged on the upper surface of the equipment platform, a distance adjusting mechanism is arranged between the clamping mechanisms, rotating mechanisms distributed symmetrically are arranged on the clamping mechanisms, and a welding mechanism is arranged on one side of each clamping mechanism. The clamping mechanism comprises a ring, a cylinder is rotatably connected to the middle of the ring, clamping hydraulic cylinders are fixedly connected to the inner circumference of the cylinder in an array mode, clamping plates are fixedly connected to the ends, away from the cylinder, of the clamping hydraulic cylinders, and clamping sliding columns are fixedly connected to the upper ends and the lower ends of the clamping plates. The welding device has the beneficial effects that the two clamping mechanisms with the adjustable distance are arranged, the clamping mechanisms clamp the two pipe fittings to enable welding openings to be close to each other, the adjustable inner welding head and the adjustable outer welding head are arranged in the pipe and outside the pipe, the inner welding head and the outer welding head are matched to complete welding of pipe fitting connectors in cooperation with rotation of the clamping mechanisms of the driving motor, clamping is stable, and the welding efficiency is improved. Welding is fast, and the welding quality is high.

Description

Technical Field

[0001] The utility model relates to the technical field of welding machines, in particular to a fixed spot welding machine. Background Art

[0002] A spot welding machine is a mechanical device that adopts the principle of double-sided double-point overcurrent welding. When working, two electrodes press the workpiece, so that a certain contact resistance is formed between two layers of metal under the pressure of the two electrodes. When the welding current flows from one electrode to the other electrode, instantaneous hot melting connection is formed at the two contact resistance points, and the welding current instantaneously forms a loop from the other electrode along the two workpieces to this electrode, and the internal structure of the workpiece to be welded will not be damaged.

[0003] For example, the patent document with the publication number of CN220462570U discloses a fixed spot welding machine. By setting a fixed seat with an electric telescopic rod driving a fixed clamp seat, it is convenient to adjust and clamp and fix the workpiece to be processed on both sides, so as to be suitable for the limit fixation of spot welding workpieces of different sizes. However, when welding and connecting two pipes, this device cannot complete it well. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fixed spot welding machine to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] A fixed spot welding machine includes an equipment platform. A clamping mechanism is arranged on the upper surface of the equipment platform in an up-and-down distribution. A spacing adjustment mechanism is arranged between the clamping mechanisms. A rotation mechanism is symmetrically arranged on the clamping mechanism. A welding mechanism is arranged on one side of the clamping mechanism. The clamping mechanism includes a ring. A cylinder is rotatably connected to the middle of the ring. Clamping hydraulic cylinders are fixedly connected in a circumferential array inside the cylinder. One end of the clamping hydraulic cylinder far away from the cylinder is fixedly connected with a clamping plate. Clamping sliding columns are fixedly connected to the upper and lower ends of the clamping plate. The clamping sliding columns are slidably connected to the cylinder. The lower ring is fixedly connected to the equipment platform.

[0007] Preferably, the rotation mechanism includes a driving motor. The driving motor is installed on the upper surface of the ring. The output shaft of the clamping hydraulic cylinder is fixedly connected with a driving gear. The driving gear meshes with an external gear ring. The external gear ring is fixedly connected to the outside of the cylinder.

[0008] Preferably, the spacing adjustment mechanism includes a spacing adjustment hydraulic cylinder. The top end of the spacing adjustment hydraulic cylinder is fixedly connected with the upper ring. The bottom end of the spacing adjustment hydraulic cylinder is fixedly connected with the lower ring. A vertical sliding column is fixedly connected to the upper surface of the lower ring. The vertical sliding column is slidably connected to the upper ring.

[0009] Preferably, the welding mechanism includes a linear track, the two ends of the linear track are fixedly connected with vertical plates, the bottom ends of the vertical plates are fixedly connected with the equipment platform, and the linear track is cooperatively connected with a linear motor.

[0010] Preferably, the welding mechanism further includes an inner welding electric telescopic rod, the top end of the inner welding electric telescopic rod is fixedly connected with the linear motor, and the bottom end of the linear motor is provided with an inner welding head.

[0011] Preferably, the welding mechanism further includes a sliding sleeve, the sliding sleeve is slidably connected with one side of the vertical plate, the bottom surface of the sliding sleeve is fixedly connected with an outer welding electric telescopic rod I, the bottom end of the outer welding electric telescopic rod I is fixedly connected with the equipment platform, and one side of the sliding sleeve close to the inner welding head is fixedly connected with an outer welding electric telescopic rod II, and the end of the outer welding electric telescopic rod II close to the inner welding head is provided with an outer welding head.

[0012] The beneficial effects are as follows: there are two clamping mechanisms with adjustable spacing. The clamping mechanisms clamp two pipe fittings to bring the welding joints close to each other. Adjustable inner and outer welding heads are arranged inside and outside the pipes. With the cooperation of the driving motor to rotate the clamping mechanisms, the inner and outer welding heads cooperate to complete the welding of the pipe fitting joints. The clamping is relatively stable, the welding is relatively fast, and the welding quality is relatively high.

[0013] The additional technical features and their advantages of the present utility model will be more clearly described in the following description content, or can be understood through the specific practice of the present utility model. Description of the Drawings

[0014] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the following specific implementation manners, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 is the first schematic diagram of a fixed spot welder described in the present utility model;

[0016] Figure 2 is a fixed spot welder described in the present utility model Figure 1 partial enlarged view at A;

[0017] Figure 3 is the second schematic diagram of a fixed spot welder described in the present utility model;

[0018] Figure 4 is a fixed spot welder described in the present utility model Figure 3 partial enlarged view at B.

[0019] The description of the reference numerals is as follows:

[0020] 100, Equipment platform; 201, Ring; 202, Cylinder; 203, Clamping hydraulic cylinder; 204, Clamping plate; 205, Clamping slide column; 301, External gear ring; 302, Driving gear; 303, Driving motor; 401, Spacing adjustment hydraulic cylinder; 402, Vertical slide column; 501, Vertical plate; 502, Linear track; 503, Linear motor; 504, Inner welding electric telescopic rod; 505, Inner welding head; 506, Slide sleeve; 507, Outer welding electric telescopic rod 1; 508, Outer welding electric telescopic rod 2; 509, Outer welding head. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] The present invention will be further described below in conjunction with the accompanying drawings:

[0024] As Figure 1 - Figure 4 shown, a fixed spot welder includes an equipment platform 100. A clamping mechanism is provided on the upper surface of the equipment platform 100 and is distributed up and down. A spacing adjustment mechanism is provided between the clamping mechanisms. A rotation mechanism is symmetrically distributed on the clamping mechanism. A welding mechanism is provided on one side of the clamping mechanism. The clamping mechanism includes a ring 201. The middle of the ring 201 is rotatably connected to a cylinder 202. A plurality of clamping hydraulic cylinders 203 are fixedly connected to the inner circumference of the cylinder 202 in an array. One end of the clamping hydraulic cylinder 203 away from the cylinder 202 is fixedly connected to a clamping plate 204. The upper and lower ends of the clamping plate 204 are fixedly connected to clamping slide columns 205. The clamping slide columns 205 are slidably connected to the cylinder 202. The lower ring 201 is fixedly connected to the equipment platform 100.

[0025] The ring 201 is used to keep the cylinder 202 rotatable. The cylinder 202 is used to install the clamping hydraulic cylinder 203. The clamping hydraulic cylinder 203 pushes the clamping plate 204 through its own expansion and contraction. The clamping plate 204 is used to clamp the pipe fittings and is in direct contact with the pipe fittings. The clamping slide columns 205 are used to maintain the stability of the radial movement of the clamping plate 204, making the butt joint of the pipe orifices more accurate.

[0026] The rotation mechanism includes a driving motor 303, which is installed on the upper surface of the circular ring 201. The output shaft of the clamping hydraulic cylinder 203 is fixedly connected with a driving gear 302, and the driving gear 302 meshes with an external tooth ring 301. The external tooth ring 301 is fixedly connected to the outside of the cylinder 202.

[0027] The driving motor 303 provides rotational power to drive the driving gear 302 to rotate. The driving gear 302 drives the driving motor 303 to rotate. The driving motor 303 is fixedly connected to the cylinder 202, driving the cylinder 202 to rotate, so that every part of the pipe fitting interface can be aligned with the welding mechanism.

[0028] The spacing adjustment mechanism includes a spacing adjustment hydraulic cylinder 401. The top end of the spacing adjustment hydraulic cylinder 401 is fixedly connected to the upper circular ring 201, and the bottom end of the spacing adjustment hydraulic cylinder 401 is fixedly connected to the lower circular ring 201. The upper surface of the lower circular ring 201 is fixedly connected with a vertical sliding column 402, and the vertical sliding column 402 is slidably connected to the upper circular ring 201.

[0029] The spacing adjustment hydraulic cylinder 401 controls the spacing between the two clamping mechanisms through its own expansion and contraction, facilitating the insertion of the pipe fitting and the butt joint of the pipe orifices. The vertical sliding column 402 is used to maintain the spacing adjustment between the two clamping mechanisms to ensure stability.

[0030] The welding mechanism includes a linear track 502. Both ends of the linear track 502 are fixedly connected with vertical plates 501. The bottom ends of the vertical plates 501 are fixedly connected to the equipment platform 100. The linear track 502 is cooperatively connected with a linear motor 503.

[0031] The vertical plates 501 are used to support and connect the linear track 502. The linear track 502 provides a movement track for the linear motor 503. The linear motor 503 drives the inner welding electric telescopic rod 504 to move, so that the inner welding head 505 can contact pipes of different diameters.

[0032] The welding mechanism further includes an inner welding electric telescopic rod 504. The top end of the inner welding electric telescopic rod 504 is fixedly connected to the linear motor 503, and the bottom end of the linear motor 503 is equipped with an inner welding head 505.

[0033] The inner welding electric telescopic rod 504 controls the position of the inner welding head 505 through its own expansion and contraction, enabling the welding of pipe fittings of different lengths.

[0034] The welding mechanism further includes a sliding sleeve 506. The sliding sleeve 506 is slidably connected to one of the vertical plates 501. The bottom surface of the sliding sleeve 506 is fixedly connected to an external welding electric telescopic rod one 507. The bottom end of the external welding electric telescopic rod one 507 is fixedly connected to the equipment platform 100. One side of the sliding sleeve 506 close to the inner welding head 505 is fixedly connected to an external welding electric telescopic rod two 508, and the end of the external welding electric telescopic rod two 508 close to the inner welding head 505 is equipped with an external welding head 509.

[0035] The outer welding electric telescopic rod 1 controls the height of the sliding sleeve 506. The sliding sleeve 506 is used to install the outer welding electric telescopic rod 2 508. The outer welding electric telescopic rod 2 508 controls the distance between the outer welding head 509 and the outer wall of the pipe fitting through its own telescoping, so that the outer welding head 509 can contact the pipes of different pipe fittings and weld them.

[0036] Working principle:

[0037] Place the two pipe fittings to be welded into the two cylinders 202 respectively. Control the clamping hydraulic cylinder 203 to clamp their respective pipe fittings stably. Then control the spacing adjustment hydraulic cylinder 401 to move the two clamping mechanisms closer. Finally, move the two pipe fittings closer to contact. Subsequently, control the outer welding electric telescopic rod 1 507 to adjust the sliding sleeve 506 and the outer welding electric telescopic rod 2 508 to the pipe fitting interface. Adjust the outer welding electric telescopic rod 2 508 to move the outer welding head 509 closer to the pipe fitting interface to start welding. At the same time, control the linear motor 503 to adjust the position of the inner welding electric telescopic rod 504 so that the inner welding head 505 contacts the inner wall of the pipe fitting interface, and complete the welding through internal and external cooperation.

[0038] After the spot welding at this point is completed, start the driving motor 303 to drive the driving gear 302 to rotate. The driving gear 302 drives the outer tooth ring 301 and the lower cylinder 202 to rotate, so that the pipe fittings clamped inside rotate accordingly, and all the pipe orifice docking points can be aligned with the inner welding head 505 and the outer welding head 509 to complete multi-point welding of the interface.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixed spot welder, comprising an equipment platform (100), characterized in that: The upper surface of the device platform (100) is provided with clamping mechanisms distributed vertically, a spacing adjustment mechanism is arranged between the clamping mechanisms, rotating mechanisms are symmetrically distributed on the clamping mechanisms, and a welding mechanism is arranged on one side of the clamping mechanisms. The clamping mechanism includes a ring (201), the middle of the ring (201) is rotatably connected to a cylinder (202), clamping hydraulic cylinders (203) are fixedly connected in a circumferential array inside the cylinder (202), one end of each clamping hydraulic cylinder (203) far away from the cylinder (202) is fixedly connected to a clamping plate (204), clamping sliding columns (205) are fixedly connected to the upper and lower ends of the clamping plate (204), the clamping sliding columns (205) are slidably connected to the cylinder (202), and the lower ring (201) is fixedly connected to the device platform (100).

2. The fixed spot welder according to claim 1, wherein: The rotating mechanism includes a driving motor (303), the driving motor (303) is installed on the upper surface of the ring (201), the output shaft of the clamping hydraulic cylinder (203) is fixedly connected to a driving gear (302), the driving gear (302) meshes with an external tooth ring (301), and the external tooth ring (301) is fixedly connected to the outside of the cylinder (202).

3. A fixed spot welder according to claim 1, characterized in that: The spacing adjustment mechanism includes a spacing adjustment hydraulic cylinder (401), the top end of the spacing adjustment hydraulic cylinder (401) is fixedly connected to the upper ring (201), the bottom end of the spacing adjustment hydraulic cylinder (401) is fixedly connected to the lower ring (201), a vertical sliding column (402) is fixedly connected to the upper surface of the lower ring (201), and the vertical sliding column (402) is slidably connected to the upper ring (201).

4. A fixed spot welder according to claim 1, characterized in that: The welding mechanism includes a linear track (502), the two ends of the linear track (502) are fixedly connected to vertical plates (501), the bottom ends of the vertical plates (501) are fixedly connected to the device platform (100), and the linear track (502) is connected with a linear motor (503) in a matching manner.

5. A stationary spot welder according to claim 4, characterized in that: The welding mechanism further includes an internal welding electric telescopic rod (504), the top end of the internal welding electric telescopic rod (504) is fixedly connected to the linear motor (503), and an internal welding head (505) is installed at the bottom end of the linear motor (503).

6. The fixed spot welder according to claim 4, characterized in that: The welding mechanism further includes a sliding sleeve (506), the sliding sleeve (506) is slidably connected to one of the vertical plates (501), the bottom surface of the sliding sleeve (506) is fixedly connected to an external welding electric telescopic rod one (507), the bottom end of the external welding electric telescopic rod one (507) is fixedly connected to the device platform (100), an external welding electric telescopic rod two (508) is fixedly connected to one side of the sliding sleeve (506) close to the internal welding head (505), and an external welding head (509) is installed at one end of the external welding electric telescopic rod two (508) close to the internal welding head (505).

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