Steel pipe welding positioning device

Abstract

The utility model discloses a steel pipe welding positioning device, which relates to the technical field of steel pipe welding construction and comprises a support frame, a positioning mechanism mounted at the top of the support frame and used for limiting a steel pipe, and a locking mechanism mounted at the top of the support frame and used for locking the limited steel pipe, the positioning mechanism comprises a positioning frame fixedly arranged at the top of the supporting frame and used for bearing the steel pipe, and a steel pipe clamping position arranged at the top of the positioning frame and used for limiting the steel pipe. The steel pipe to be welded is placed in the steel pipe clamping position, and the locking bolt in the locking nut is rotated to lock the steel pipe, so that the steel pipe is fixed between the steel pipe clamping position and the locking bolt to position the steel pipe to be welded, the steel pipe is not easy to move during welding, the welding precision is improved, the welding speed is increased, and the welding efficiency is improved. During welding, the steel pipe does not need to be held by extra hands, and the convenience during welding of the steel pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe welding construction, in particular to a steel pipe welding positioning device. Background Art

[0002] Steel pipes are steel materials with hollow cross-sections whose length is much greater than their diameter or circumference. During the construction of steel pipes, in order to meet certain structural requirements, steel pipes need to be welded. However, due to the shape of the steel pipes, manual positioning of the steel pipes is usually required during welding to facilitate welding.

[0003] The patent with announcement number CN213730263U discloses "a steel pipe welding positioning device, which relates to the field of steel pipe welding construction technology. It includes an adjusting device and a clamping device, and its key technology lies in that the adjusting device is to install a slide rail on the outer wall of the positioning tube, and a slider is arranged in the groove of the slide rail. The beneficial effects of the utility model are: the two positioning tubes are opened and closed by hinges or other structures, and the angle is adjusted by the adjusting device to meet the requirements of multi-angle welding, and the welding accuracy is high. The steel pipe to be welded is fixed by spring expansion and contraction, which is suitable for steel pipes of various shapes and sizes, with fast positioning speed and high construction efficiency."

[0004] In response to the problem raised in the above-mentioned document specification that "the disadvantages of manual positioning are slow construction speed and low welding accuracy", this application adopts another technical solution to solve the above-mentioned technical problem. Utility Model Content

[0005] The utility model aims to solve the shortcomings of manual positioning of steel pipes, namely, slow construction speed and low welding precision, and provides a steel pipe welding positioning device. The specific technical scheme is as follows:

[0006] The steel pipe welding positioning device includes a support frame, a positioning mechanism installed on the top of the support frame and used to limit the steel pipe, and a locking mechanism installed on the top of the support frame and used to lock the steel pipe after limiting the position. The positioning mechanism includes a positioning frame fixed on the top of the support frame for carrying the steel pipe, and a steel pipe clamping position provided on the top of the positioning frame for limiting the steel pipe. The locking mechanism includes a locking nut provided on the top of the support frame, a locking bolt threaded in the locking nut for pressing the bottom steel pipe, and a handle fixed on the top of the locking bolt. A height adjustment mechanism is provided on the top of the support frame for adjusting the height of the locking nut.

[0007] By adopting the above technical solution, the steel pipe to be welded is placed in the steel pipe clamping position, and the locking bolt in the locking nut is rotated to lock the steel pipe, so that the steel pipe is fixed between the steel pipe clamping position and the locking bolt to position the steel pipe to be welded.

[0008] Optionally, the height adjustment mechanism includes an adjusting bolt fixed on one side of the top of the support frame, an adjusting nut threaded on an outer wall of the adjusting bolt, and a connecting rod fixed between the locking nut and the adjusting nut.

[0009] By adopting the above technical solution, the height adjustment mechanism can adjust the height of the locking nut and other components, which is convenient for the locking nut and other components to position steel pipes of different sizes, and the locking nut and the adjusting nut and other components can be removed as a whole, which is convenient for people to replace or clean the locking nut and other components as a whole.

[0010] Optionally, a rubber pad for protecting the pressing surface of the steel pipe is fixedly provided at the bottom end of the locking nut.

[0011] By adopting the above technical solution, the rubber pad can protect the pressing surface of the steel pipe when the locking nut presses the steel pipe, thereby preventing the bottom end of the locking nut from scratching the outer surface of the steel pipe.

[0012] Optionally, a lubrication groove is provided in the top of the locking nut for reducing wear at the connection between the locking nut and the locking bolt by adding lubricating oil, an annular oil absorber is provided at the bottom of the locking nut for absorbing excess lubricating oil, an annular bracket is provided at the bottom of the locking nut for supporting the annular oil absorber, and a magnet ring is fixedly provided at the top of the inner side of the annular bracket and is magnetically attracted to the bottom of the locking nut.

[0013] By adopting the above technical solution and adding lubricating oil into the lubricating groove, the resistance when people rotate the locking bolt can be reduced, and the annular oil absorption member can absorb the excessively added lubricating oil.

[0014] In summary, the present invention has at least one of the following beneficial effects:

[0015] 1. The steel pipe to be welded is placed into the steel pipe clamping position, and the locking bolt in the locking nut is rotated to lock the steel pipe, so that the steel pipe is fixed between the steel pipe clamping position and the locking bolt, so as to position the steel pipe to be welded, so that the steel pipe is not easy to move during welding, thereby improving the welding accuracy and speed. There is no need to add extra hands to hold the steel pipe during welding, which improves the convenience of steel pipe welding.

[0016] 2. The height of the locking nut and other components can be adjusted through the height adjustment mechanism, which is convenient for the locking nut and other components to position steel pipes of different sizes, and the locking nut and the adjusting nut and other components can be removed as a whole, which is convenient for people to replace or clean the locking nut and other components as a whole. By adding lubricating oil to the lubrication groove, the resistance when people rotate the locking bolt can be reduced. The annular oil absorber can absorb the excessive lubricating oil. The magnet ring and other components can be magnetically attracted to facilitate people to disassemble and replace the annular oil absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of the first embodiment of the utility model;

[0018] Figure 2 It is an overall schematic diagram of the second embodiment of the utility model;

[0019] Figure 3 This is an internal connection diagram of the locking nut, the annular bracket and the locking bolt of the second embodiment of the utility model.

[0020] Explanation of the reference numerals: 1. Support frame; 2. Positioning frame; 21. Steel pipe clamping position; 3. Locking nut; 31. Locking bolt; 32. Handle; 33. Rubber pad; 4. Adjusting bolt; 41. Adjusting nut; 42. Connecting rod; 5. Lubrication groove; 6. Annular oil absorption part; 61. Annular bracket; 62. Magnet ring. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-3 The utility model is described in further detail.

[0022] Example 1: Reference Figure 1 The embodiment of the utility model discloses a steel pipe welding positioning device, including a support frame 1, a positioning mechanism installed on the top of the support frame 1 and used to limit the steel pipe, and a locking mechanism installed on the top of the support frame 1 and used to lock the steel pipe after limiting the position. The support frame 1 can support components such as the positioning mechanism and the locking mechanism.

[0023] Reference Figure 1 The positioning mechanism includes a positioning frame 2 fixed on the top of the support frame 1 for carrying the steel pipe, and a steel pipe clamping position 21 arranged on the top of the positioning frame 2 for limiting the steel pipe. The positioning frame 2 can be in a V-shape or other shapes. The positioning frame 2 can support and limit the steel pipe through the steel pipe clamping position 21.

[0024] Reference Figure 1 The locking mechanism includes a locking nut 3 arranged at the top of the support frame 1, a locking bolt 31 with threads arranged in the locking nut 3 for pressing the bottom steel pipe, and a handle 32 fixed at the top of the locking bolt 31. People use the handle 32 to rotate the locking bolt 31. After the locking bolt 31 is rotated, it will rise and fall on the locking nut 3. The lowered locking bolt 31 can press and lock the bottom steel pipe, so that the steel pipe is fixed between the steel pipe clamping position 21 and the locking bolt 31 to position the steel pipe to be welded.

[0025] Reference Figure 1A height adjustment mechanism for adjusting the height of the locking nut 3 is provided on the top of the support frame 1. The height adjustment mechanism includes an adjusting bolt 4 fixedly arranged on one side of the top of the support frame 1, an adjusting nut 41 threadedly arranged on the outer wall of the adjusting bolt 4, and a connecting rod 42 fixedly arranged between the locking nut 3 and the adjusting nut 41. The connecting rod 42 can connect the locking nut 3 and the adjusting nut 41. When people rotate the adjusting nut 41, the adjusting nut 41 will be driven to rise and fall on the adjusting bolt 4, thereby adjusting the height of the locking nut 3, which is convenient for the locking nut 3 and other components to position steel pipes of different sizes.

[0026] The locking nut 3, the adjusting nut 41 and the connecting rod 42 can be removed as a whole, which is convenient for people to replace or clean the locking nut 3 and other parts as a whole, and people can rotate the adjusting nut 41 to unscrew the locking nut 3, the locking bolt 31 and other parts from just above the steel pipe clamping position 21, so that people can use the hoisting method to lift the steel pipe to be welded and with a larger volume to the steel pipe clamping position 21.

[0027] The implementation principle of this embodiment is: people can put the steel pipe to be welded into the steel pipe clamping position 21 of the positioning frame 2, and then rotate the locking bolt 31 through the handle 32. After the locking bolt 31 is rotated, it will rise and fall on the locking nut 3. The lowered locking bolt 31 can press and lock the steel pipe at the bottom, so as to fix the steel pipe between the steel pipe clamping position 21 and the locking bolt 31 to position the steel pipe to be welded.

[0028] Embodiment 2: Based on Embodiment 1, refer to Figure 2 A rubber pad 33 for protecting the pressing surface of the steel pipe is fixed at the bottom end of the locking nut 3. The rubber pad 33 can be a pad body with certain elasticity and softness such as a rubber pad. The rubber pad 33 can protect the pressing surface of the steel pipe when the locking nut 3 presses the steel pipe to prevent the bottom end of the locking nut 3 from scratching the outer surface of the steel pipe.

[0029] Reference Figure 2-3 A lubrication groove 5 is provided in the top end of the locking nut 3 for reducing the wear at the connection between the locking nut 3 and the locking bolt 31 by adding lubricating oil. By adding lubricating oil into the lubrication groove 5, the wear and resistance at the connection between the locking nut 3 and the locking bolt 31 can be reduced, thereby reducing the resistance when people rotate the locking bolt 31.

[0030] Reference Figure 2-3 An annular oil absorber 6 for absorbing excessive lubricating oil is provided at the bottom of the locking nut 3. The inner wall of the annular oil absorber 6 is in contact with the outer wall of the locking bolt 31. The annular oil absorber 6 is an annular object with oil absorption effect such as oil-absorbing cotton. The annular oil absorber 6 can absorb excessive lubricating oil, thereby preventing the excessive lubricating oil from flowing along the locking bolt 31 to the outer surface of the steel pipe and contaminating the steel pipe.

[0031] Reference Figure 2-3 An annular bracket 61 for carrying the annular oil suction member 6 is provided at the bottom of the locking nut 3. There is a gap between the inner wall of the annular bracket 61 and the outer wall of the locking bolt 31, so that the locking bolt 31 will not affect the annular bracket 61 after rotation.

[0032] Reference Figure 2-3 A magnet ring 62 is fixedly arranged on the inner top of the annular bracket 61 and is magnetically attracted to the bottom of the locking nut 3. The locking nut 3 can be a carbon steel nut. The magnet ring 62 can adsorb the locking nut 3 under magnetic force. People can forcefully pull the annular bracket 61 off the bottom of the locking nut 3 and replace the annular oil absorber 6 that is saturated with oil in the annular bracket 61. After replacement, the annular bracket 61 can be fixed to the bottom of the locking nut 3 again by using the magnetic attraction of the magnet ring 62.

[0033] The implementation principle of this embodiment is: people add lubricating oil into the lubrication groove 5 to reduce the wear and resistance at the connection between the locking nut 3 and the locking bolt 31, thereby reducing the resistance when people rotate the locking bolt 31. The annular oil absorber 6 can absorb the excessively added lubricating oil. People can forcefully pull the annular bracket 61 off the bottom of the locking nut 3 and replace the annular oil absorber 6 that is saturated with oil in the annular bracket 61. After replacement, the annular bracket 61 is fixed to the bottom of the locking nut 3 again by the magnetic attraction of the magnet ring 62.

[0034] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A steel pipe welding positioning device, comprising a support frame (1), a positioning mechanism installed on the top of the support frame (1) and used to limit the position of the steel pipe, and a locking mechanism installed on the top of the support frame (1) and used to lock the steel pipe after limiting the position, characterized in that: The positioning mechanism comprises a positioning frame (2) fixedly arranged on the top of the support frame (1) for carrying the steel pipe, and a steel pipe clamping position (21) arranged on the top of the positioning frame (2) for limiting the position of the steel pipe. The locking mechanism comprises a locking nut (3) arranged on the top of the support frame (1), a locking bolt (31) threadedly arranged in the locking nut (3) for pressing the bottom steel pipe, and a handle (32) fixedly arranged on the top of the locking bolt (31). A height adjustment mechanism for adjusting the height of the locking nut (3) is provided on the top of the support frame (1).

2. The steel pipe welding positioning device according to claim 1, characterized in that: The height adjustment mechanism comprises an adjustment bolt (4) fixedly arranged on one side of the top of the support frame (1), an adjustment nut (41) threadedly arranged on the outer wall of the adjustment bolt (4), and a connecting rod (42) fixedly arranged between the locking nut (3) and the adjustment nut (41).

3. The steel pipe welding positioning device according to claim 1, characterized in that: A rubber pad (33) for protecting the steel pipe holding surface is fixedly provided at the bottom end of the locking nut (3).

4. The steel pipe welding positioning device according to claim 1, characterized in that: A lubrication groove (5) is provided in the top end of the locking nut (3) for reducing wear at the connection between the locking nut (3) and the locking bolt (31) by adding lubricating oil.

5. The steel pipe welding positioning device according to claim 4, characterized in that: An annular oil absorption piece (6) for absorbing excessively added lubricating oil is provided at the bottom of the locking nut (3).

6. The steel pipe welding positioning device according to claim 5, characterized in that: An annular bracket (61) for carrying the annular oil suction piece (6) is provided at the bottom of the locking nut (3).

7. The steel pipe welding positioning device according to claim 6, characterized in that: A magnet ring (62) is fixedly provided on the inner top of the annular bracket (61) and is magnetically attracted to the bottom of the locking nut (3).

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