Double-material clamping welding device

Abstract

The utility model discloses a double-material clamping welder, relates to the technical field of welding equipment, and is mainly used for solving the problem that welding acting points are unbalanced due to the fact that a gun head of an existing argon arc welding gun is directly pressed on an uneven corrugated steel plate. The upper end of the welding gun body is a gun tail, the lower end of the welding gun body is a gun head, a control handle is connected to the welding gun body, a hollow pressing pipe is movably connected to the outer portion of the welding gun body in a sleeved mode, and an elastic piece capable of providing vertically-downward elastic force for the welding gun body is further arranged in the hollow pressing pipe. According to the double-material clamping welding device, the peripheral area of a welding point is pressed through the hollow pressing pipe, a certain amount of pressure is kept on the ceramic nozzle of the gun head all the time, the ceramic nozzle can be prevented from being damaged, meanwhile, the quality and size of the welding point are not changed, and the appearance of the welding point is kept attractive.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a double-material clamping welder. Background Art

[0002] In the blanking die of the automobile mold, due to the different positions of the punching waste and the trimming waste, or the closed height limit of the mold, the discharge angle of the blanking waste mostly does not meet the conventional requirement of 25 degrees. Therefore, it is necessary to add corrugated steel plates to the waste slide of ordinary steel plates by welding to reduce the friction between the waste and the steel plate slide, increase the sliding speed of the waste at a small angle of the slide, and avoid the waste from accumulating on the slide.

[0003] In order to weld the corrugated steel plate to the slideway steel plate, the current conventional welding method is to directly press the corrugated steel plate with the gun head of the argon arc welding gun to make it fit on the slideway steel plate, thereby performing welding.

[0004] However, since the tip of the argon arc welding gun is a ceramic nozzle, if it is directly pressed on the uneven corrugated steel plate, there will be a problem of uneven welding points, so the ceramic nozzle is prone to damage after repeated use. At the same time, since the pressing force of each welding point is different, the size of the welding point will be different, which will affect the appearance. In addition, due to the uneven force, sometimes there will be defects such as the corrugated plate and the ordinary steel plate not being fused. Utility Model Content

[0005] The utility model aims to provide a double-material clamping welder, which presses the peripheral area of ​​the welding point through a hollow pressure tube and always maintains a certain amount of pressure on the ceramic nozzle of the gun head, thereby avoiding damage to the ceramic nozzle while keeping the quality and size of the welding point unchanged and maintaining the beautiful appearance of the welding point.

[0006] The utility model provides a technical solution to the above technical problems: a double-material clamping welder, comprising a welding gun body extending vertically, with a gun tail at the upper end and a gun head at the lower end, a control handle connected to the side wall of the welding gun body, a hollow pressure tube that can accommodate the welding gun body as a whole is movably sleeved on the outside of the welding gun body, and an elastic member that can provide a vertical downward elastic force to the welding gun body is also provided in the hollow pressure tube.

[0007] As a further improvement of the present invention, a slot extending downward to the lower end of the hollow pressure tube is provided on the lower side wall of the hollow pressure tube, and the control handle is located in the slot.

[0008] As a further improvement of the utility model, a clamping plate capable of preventing the welding gun body from shaking horizontally is provided on the lower inner wall of the hollow pressure tube.

[0009] As a further improvement of the present invention, the clamping plate is a U-shaped clamping plate and its opening side is arranged opposite to the notch.

[0010] As a further improvement of the utility model, the elastic member is a trapezoidal spring with one end large and the other end small, the large open end of the trapezoidal spring is fixedly connected to the inner wall of the hollow pressure tube, and the small open end of the trapezoidal spring is fixedly provided with a gasket that is in tight contact with the top end of the gun tail.

[0011] As a further improvement of the present invention, the trapezoidal spring is arranged with its large opening end vertically facing downward, and the trapezoidal spring is movably sleeved on the outside of the gun tail.

[0012] As a further improvement of the utility model, a handle is fixedly connected to the top end of the hollow pressure tube.

[0013] As a further improvement of the present invention, the handle is an annular grip.

[0014] Beneficial Effects

[0015] Compared with the prior art, the advantages of the double-material clamping welding device of the utility model are:

[0016] 1. Through this device, the operator can use the lower end of the hollow pressure tube to press the corrugated steel plate to make it fit the slide steel plate. At this time, the gun head of the welding gun body is retracted into the hollow pressure tube by the reverse force, and only bears the appropriate downward elastic force of the elastic part, which has no effect on the service life of the ceramic nozzle of the gun head. At the same time, the lower end of the hollow pressure tube can apply appropriate pressure to the corrugated steel plate and the slide steel plate to be welded, so that the corrugated steel plate and the slide steel plate can be quickly pressed and welded together. While the welding appearance is beautiful, the service life of the ceramic nozzle head of the gun head is not affected by the contact point of the corrugated plate. In addition, when using this double-material clamping welder for welding, the amount of arc exposure is greatly reduced, which has a protective effect on the operator.

[0017] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2This is a diagram of the use state of the utility model;

[0021] Figure 3 It is a cross-sectional view of the utility model;

[0022] Figure 4 It is a three-dimensional diagram of the welding gun body of the present utility model.

[0023] Among them: 1-hollow pressure tube; 11-handle; 12-cage; 13-notch; 2-elastic member; 21-gasket; 3-welding gun body; 31-control handle; 32-gun head; 33-gun tail. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings. 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 making creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; of course, it can also be a mechanical connection or an electrical connection; in addition, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0027] Example

[0028] The specific implementation of the utility model is as follows Figure 1-4 As shown, a double-material clamping welder includes a welding gun body 3 extending vertically, with a gun tail 33 at the upper end and a gun head 32 at the lower end. A control handle 3 is connected to the side wall of the welding gun body 3. A hollow pressure tube 1 that can accommodate the welding gun body 3 as a whole is movably sleeved on the outside of the welding gun body 3. An elastic member 2 that can provide a vertical downward elastic force to the welding gun body 3 is also provided in the hollow pressure tube 1.

[0029] When using the device, first place the corrugated steel plate to be welded on the surface of the slideway steel plate made of ordinary steel plate, and put the two together into the welding area, and the welding operator checks the previous state. Then, the operator controls the lower end of the hollow pressure tube 1 with one hand to press the corrugated steel plate so that it fits the slideway steel plate. At this time, the gun head of the welding gun body is retracted into the hollow pressure tube by the reverse force, and only bears the appropriate downward elastic force of the elastic member. After that, the operator can operate the argon arc welding gun through the control handle 3 with the other hand to complete the double-layer plate welding of the corrugated steel plate and the slideway steel plate.

[0030] In the device, since the gun head 32 of the welding gun body 3 is only subjected to the appropriate downward elastic force of the elastic member 2 when it is retracted into the hollow pressure tube 1 by the reverse force, the service life of the ceramic nozzle of the gun head 32 is not affected. At the same time, the lower end of the hollow pressure tube 1 can apply appropriate pressure to the corrugated steel plate and the slideway steel plate to be welded, so that the corrugated steel plate and the slideway steel plate can be quickly pressed and welded together, and the welding appearance is beautiful while the service life of the ceramic nozzle head of the gun head 32 is not affected by the contact point of the corrugated plate. In addition, when using the double-material clamping welder for welding, due to the presence of the hollow pressure tube 1, the arc exposure is greatly reduced, which can also protect the operator.

[0031] In this embodiment, a notch 13 extending downward to the lower end of the hollow pressure tube 1 is provided on the lower side wall thereof, and the control handle 3 is located in the notch 13. When assembling the device, the welding gun body 3 can be inserted from the lower end of the hollow pressure tube 1 and the control handle 31 can be inserted from the lower end of the notch 13, thereby completing the sleeve combination of the welding gun body 3 and the hollow pressure tube 1.

[0032] At the same time, a clamping plate 12 is provided on the inner wall of the lower part of the hollow pressure tube 1 to prevent the welding gun body 3 from shaking horizontally. Specifically, the clamping plate 12 is a U-shaped clamping plate and its opening side is arranged opposite to the notch 13. The clamping plate 12 can clamp the gun head 32 so that the welding gun body 3 can remain coaxial with the hollow pressure tube 1 without shaking.

[0033] As for the elastic member 2, the elastic member 2 in this embodiment is a trapezoidal spring with one end large and the other end small. The large open end of the trapezoidal spring is fixedly connected to the inner wall of the hollow pressure tube 1, and the small open end of the trapezoidal spring is fixedly provided with a gasket 21 that is in tight contact with the top of the gun tail 33. Specifically: the trapezoidal spring is vertically arranged with the large open end facing downward, and the trapezoidal spring is movably sleeved on the outside of the gun tail 33. When the device is in the initial state, the gun tail 33 of the welding gun body 3 passes through the trapezoidal spring to press against the gasket 21 that is connected to the trapezoidal spring as a whole. The nozzle of the gun head 32 slightly emerges from the lower end of the hollow pressure tube 1. When in use, the deformation of the small open end of the trapezoidal spring caused by the gun tail 33 pressing against the gasket 21 does not exceed the upper end of the hollow pressure tube 1.

[0034] It should be noted that:

[0035] A handle 11 is fixedly connected to the top of the hollow pressing tube 1. The handle 11 in this embodiment is an annular grip. Through the handle 11, the operator can easily control the lower end of the hollow pressing tube 1 to press the corrugated steel plate so that it fits the slideway steel plate.

[0036] The specific use of the device is as follows:

[0037] First, the corrugated steel plate to be welded is placed on the surface of the slideway steel plate made of ordinary steel plate, and the two are placed in the welding area together, and the welding operator checks the state before. Then, the welding gun body 3 is inserted from the lower end of the hollow pressure tube 1, so that the gun tail 33 of the welding gun body 3 passes through the trapezoidal spring connected in the hollow pressure tube 1 and abuts against the gasket 21 connected to the small end of the trapezoidal spring, and at the same time, the gun head 32 is clamped into the U-shaped clamping plate to prevent the welding gun body 3 from shaking.

[0038] During welding, the operator holds the annular handle connected to the upper end of the hollow pressure tube 1 with one hand, and presses the corrugated steel plate and the slideway steel plate with the lower end of the hollow pressure tube 1. At this time, the nozzle of the gun head 32 emerging from the lower end of the hollow pressure tube 1 contacts the corrugated steel plate and is compressed into the hollow pressure tube 1. In this process, the length of the notch 13 of the hollow pressure tube 1 does not affect the movement of the welding gun body 3. At the same time, the gun tail 33 of the welding gun body 3 presses against the gasket 21, so that the ceramic nozzle of the gun head 32 only bears the tension of the trapezoidal spring.

[0039] At this time, the operator presses the switch on the control handle 31 with his other hand to weld, so that the pressure applied to the hollow steel pipe of the double-material clamping welder can strongly press the fit of the double-layer sheet materials without considering the bearing pressure of the ceramic nozzle, and the force of the argon arc welding torch nozzle to weld the corrugated plate is provided by the tension spring force and remains unchanged, so the welding quality is guaranteed. At the same time, the ceramic nozzle of the gun head 32 will not be damaged, and the service life of the gun head 32 is extended.

[0040] The present invention is described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A double-material clamping welder, comprising a welding gun body (3) extending vertically and having a gun tail (33) at the upper end and a gun head (32) at the lower end, wherein a control handle (31) is connected to the side wall of the welding gun body (3), characterized in that: The outside of the welding gun body (3) is movably sleeved with a hollow pressure tube (1) capable of accommodating the welding gun body as a whole, and the hollow pressure tube (1) is also provided with an elastic member (2) capable of providing a vertical downward elastic force to the welding gun body (3).

2. The double material clamping welding device according to claim 1, characterized in that: A slot (13) extending downward to the lower end of the hollow pressure tube (1) is provided on the lower side wall thereof, and the control handle (31) is located in the slot (13).

3. The double material clamping welding device according to claim 2, characterized in that: A clamping plate (12) capable of preventing the welding gun body (3) from shaking horizontally is provided on the lower inner wall of the hollow pressure tube (1).

4. The double material clamping welding device according to claim 3, characterized in that: The clamping plate (12) is a U-shaped clamping plate and its opening side is arranged facing the notch (13).

5. The double material clamping welding device according to claim 1, characterized in that: The elastic member (2) is a trapezoidal spring with one end being large and the other end being small. The large open end of the trapezoidal spring is fixedly connected to the inner wall of the hollow pressure tube (1), and the small open end of the trapezoidal spring is fixedly provided with a gasket (21) which is in tight contact with the top end of the gun tail (33).

6. The double material clamping welding device according to claim 5, characterized in that: The trapezoidal spring is arranged with its large opening end facing vertically downward, and the trapezoidal spring is movably sleeved on the outside of the gun tail (33).

7. The double material clamping welding device according to claim 1, characterized in that: A handle (11) is fixedly connected to the top end of the hollow pressure tube (1).

8. The double material clamping welding device according to claim 7, characterized in that: The handle (11) is a ring-shaped grip.

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