Fixing auxiliary device for pipe fitting welding

Abstract

The utility model belongs to the technical field of steel structure construction, and aims to solve the problem that an auxiliary tool for improving welding efficiency is lacked during multi-angle welding of pipe fittings at present. According to the fixing auxiliary device for pipe fitting welding, a guide nut and angle iron are arranged at the two ends of a strip-shaped plate respectively, a threaded pressing rod is in threaded connection with the guide nut, and a space used for clamping a pipe fitting to be welded is reserved between the threaded pressing rod and the angle iron; an annular hole channel parallel to the outer end face of the circular pipe is formed in the side wall of the circular pipe. The angle iron of one pipe fitting positioning mechanism is fixed to the side wall of the circular pipe and arranged away from the annular hole channel. The angle iron of the other pipe fitting positioning mechanism is connected to the annular hole channel in a sliding mode and can be locked relative to the position of the round pipe. The device can adapt to various small pipe fittings and multi-angle welding positions. The detachable self-weight is light, carrying and mounting are convenient, the finished product quality of welding seams of various small pipe fittings can be improved, one-man operation can be achieved, convenience and rapidness are achieved, and the working efficiency of one-man welding is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel structure construction, and in particular relates to a fixing auxiliary device for pipe fitting welding. Background Art

[0002] In building steel structures, welding is the main connection method and its importance is becoming increasingly immeasurable. Therefore, in order to adapt to the rapid development trend of steel structures, the improvement of welding level has become a key research issue in the industry.

[0003] In the field of construction, the rational use of welding technology can reduce the labor intensity of workers and promote the improvement of building quality. The application of steel structures in construction projects is becoming more and more common, which is of great significance to the improvement of building stability. At present, there is a lack of auxiliary tools for improving welding efficiency when welding pipe fittings at multiple angles. Utility Model Content

[0004] In order to solve at least one of the above technical problems existing in the prior art, the utility model provides a fixing auxiliary device for pipe welding.

[0005] The utility model is implemented by the following technical solutions: a fixing auxiliary device for pipe welding, comprising a round pipe and two pipe positioning mechanisms connected at an angle to the outer wall of the round pipe;

[0006] The pipe fitting positioning mechanism includes a threaded pressure rod, a guide nut, a strip plate and an angle iron;

[0007] The guide nut and the angle iron are respectively arranged at the two ends of the strip plate, the threaded pressure rod is threadedly connected with the guide nut, and a space for clamping the pipe fitting to be welded is reserved between the threaded pressure rod and the angle iron;

[0008] The side wall of the circular tube is provided with an annular channel parallel to the outer end surface thereof;

[0009] The angle iron of one pipe positioning mechanism is fixed on the side wall of the round pipe and is arranged away from the annular channel; the angle iron of the other pipe positioning mechanism is slidably connected to the annular channel and can realize position locking relative to the round pipe.

[0010] Preferably, an inclined plate is fixed on the inner side of the angle iron slidably connected to the annular channel, and a threaded sliding rod is vertically fixed on the inclined plate. One end of the threaded sliding rod passes through the annular channel and the position between the threaded sliding rod and the round tube can be locked by a locking nut arranged on the inner side of the round tube.

[0011] Preferably, there are two guide nuts, which are fixed to the strip plate at intervals; the angle iron and the guide nut are located on the same side of the strip plate.

[0012] Preferably, both ends of the angle iron are attached to the outer wall of the circular tube, and a surface of the angle iron connected to the strip plate is perpendicular to the strip plate.

[0013] Preferably, a rotating rod and a pressing gasket are respectively provided at both ends of the threaded pressure rod, and the pressing gasket is located at one end close to the angle iron.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] This device can adapt to a variety of small pipes and multi-angle welding positions. It is detachable, light in weight, easy to carry and install, can improve the quality of the finished products of various small pipe welds, can be operated by one person, is convenient and fast, and improves the efficiency of one person's welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 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.

[0017] Figure 1 This is a morphological diagram of the device when welding at a right angle of 90 degrees;

[0018] Figure 2 This is a morphological diagram of the device when welding at a 45-degree angle;

[0019] Figure 3 It is a structural schematic diagram of the circular tube of the device;

[0020] Figure 4 It is a structural schematic diagram of the pipe positioning mechanism of the device.

[0021] In the figure: 1-round tube; 1.1-annular channel; 2.1-threaded pressure rod; 2.2-guide nut; 2.3-strip plate; 2.4-angle iron; 3.1-inclined plate; 3.2-threaded sliding rod; 3.3-locking nut; 4-rotating rod; 5-compression gasket; 6-pipe fitting. DETAILED DESCRIPTION

[0022] Combined with the drawings in the embodiments of the utility model, the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented, so they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention. It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0024] The utility model provides an embodiment:

[0025] like Figures 1 to 4 As shown, a fixing auxiliary device for pipe welding comprises a round pipe 1 and two pipe positioning mechanisms connected at an angle to the outer wall of the round pipe 1; the pipe positioning mechanism comprises a threaded pressure rod 2.1, a guide nut 2.2, a strip plate 2.3 and an angle iron 2.4; the guide nut 2.2 and the angle iron 2.4 are respectively arranged at both ends of the strip plate 2.3, the threaded pressure rod 2.1 is threadedly connected with the guide nut 2.2, and a space for clamping the pipe to be welded is reserved between the threaded pressure rod 2.1 and the angle iron 2.4;

[0026] An annular channel 1.1 parallel to the outer end face of the circular tube 1 is provided at the side wall thereof; an angle iron 2.4 of one pipe positioning mechanism is fixed at the side wall of the circular tube 1 and is arranged away from the annular channel 1.1; an angle iron 2.4 of another pipe positioning mechanism is slidably connected at the annular channel 1.1 and can realize position locking relative to the circular tube 1.

[0027] In this embodiment, an inclined plate 3.1 is fixed on the inner side of the angle iron 2.4 which is slidably connected to the annular channel 1.1, and a threaded slide rod 3.2 is vertically fixed to the inclined plate 3.1. One end of the threaded slide rod 3.2 passes through the annular channel 1.1 and the position between the threaded slide rod 3.2 and the circular tube 1 can be locked by a locking nut 3.3 arranged on the inner side of the circular tube 1.

[0028] There are two guide nuts 2.2, which are fixedly connected to the strip plate 3 at intervals; the angle iron 2.4 and the guide nut 2.2 are located on the same side of the strip plate 3. The two ends of the threaded pressure rod 2.1 are respectively provided with a rotating rod 4 and a pressing gasket 5, and the pressing gasket 5 is located at one end close to the angle iron 2.4. The two ends of the angle iron 2.4 are attached to the outer wall of the circular tube 1, and the side of the angle iron 2.4 connected to the strip plate 3 is perpendicular to the strip plate 3.

[0029] The core part of the device adopts a steel pipe with a diameter of 7.5cm, a thickness of 3mm and a length of 15cm. Two holes with a diameter of 12mm are opened in the upper and lower parts of the middle of the steel pipe, and then a cutting machine is used to cut through the sides of the two holes to form a crack with a width of 12mm. Then two pieces of 4cm*4cm*4mm angle irons with a length of 15 centimeters are spliced ​​into an integral module, one side of which is welded to the round steel pipe, and the other angle iron is hinged to the round pipe 1 through a screw nut, and its up and down rotation and braking are controlled by rotating the locking nut 3.3. When in use, the threaded pressure rod 2.1 welded on the side of the angle iron 2.4 can be rotated to fix the small pipe fittings.

[0030] The diameter of the round tube 1 in the device is 7.5 cm and the thickness is 3 mm. The rotating rod 4 is provided with a rubber layer to increase the friction force. The pressing gasket 5 is a rubber circular gasket to increase the friction force.

[0031] Steps:

[0032] 1. All components are cut to predetermined sizes and assembled.

[0033] 2. After the preparation work is completed, the welding operator fixes the auxiliary device on the pipe to be welded.

[0034] 3. Adjust the angle iron on the other side of the fixing auxiliary device and the threaded slide rod 3.2 of the round tube to a suitable tightness.

[0035] 4. The operator then performs a preliminary fixation on the other side of the pipe to be welded, rotates the two pipes to be welded to the appropriate position, and locks all the brakes.

[0036] 5. Fine-tune the welding angle or weld spacing, and then proceed with welding.

[0037] This device can adapt to a variety of small pipes and multi-angle welding positions. It is detachable, light in weight, easy to carry and install, and can improve the quality of the finished products of various small pipe welds. It can be operated by one person, which is convenient and fast, and improves the efficiency of one person's welding work. It also has the characteristics of many cycles, good rigidity and good mechanical properties.

[0038] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A fixing auxiliary device for pipe welding, characterized in that: It comprises a circular tube (1) and two pipe positioning mechanisms connected at an angle to the outer wall of the circular tube (1); The pipe fitting positioning mechanism comprises a threaded pressure rod (2.1), a guide nut (2.2), a strip plate (2.3) and an angle iron (2.4); The guide nut (2.2) and the angle iron (2.4) are respectively arranged at the two ends of the strip plate (2.3); the threaded pressure rod (2.1) is threadedly connected to the guide nut (2.2); and a space for clamping the pipe fitting to be welded is reserved between the threaded pressure rod (2.1) and the angle iron (2.4); The side wall of the circular tube (1) is provided with an annular hole (1.1) parallel to the outer end surface thereof; The angle iron (2.4) of one pipe fitting positioning mechanism is fixed on the side wall of the circular pipe (1) and is arranged away from the annular hole (1.1); the angle iron (2.4) of the other pipe fitting positioning mechanism is slidably connected to the annular hole (1.1) and can achieve position locking relative to the circular pipe (1).

2. A fixing auxiliary device for pipe welding according to claim 1, characterized in that: An inclined plate (3.1) is fixed on the inner side of an angle iron (2.4) slidably connected to the annular hole (1.1), a threaded sliding rod (3.2) is vertically fixed to the inclined plate (3.1), one end of the threaded sliding rod (3.2) passes through the annular hole (1.1) and can achieve position locking between the threaded sliding rod (3.2) and the round tube (1) through a locking nut (3.3) arranged on the inner side of the round tube (1).

3. The fixing auxiliary device for pipe welding according to claim 1, characterized in that: There are two guide nuts (2.2) which are fixedly connected to the strip plate (2.3) at intervals; the angle iron (2.4) and the guide nut (2.2) are located on the same side of the strip plate (2.3).

4. A fixing auxiliary device for pipe welding according to claim 3, characterized in that: The two ends of the angle iron (2.4) are attached to the outer wall of the circular tube (1), and the side of the angle iron (2.4) connected to the strip plate (2.3) is perpendicular to the strip plate (2.3).

5. The fixing auxiliary device for pipe welding according to claim 1, characterized in that: A rotating rod (4) and a pressing gasket (5) are respectively provided at both ends of the threaded pressure rod (2.1), and the pressing gasket (5) is located at one end close to the angle iron (2.4).

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