A centering inspection device for processed and formed welded pipes

Abstract

The utility model discloses a device for centering and checking a processed welded pipe, and relates to the technical field of centering and checking a welded pipe, comprising a base, wherein telescopic rods are fixedly arranged at the four corners of the top of the base, a top plate is fixedly arranged between the top ends of the four telescopic rods, two fixing components are arranged on the top of the top plate, which are used to clamp and fix the welded pipe sample and the welded pipe to be center-checked, so as to improve the accuracy of subsequent centering and checking, and a centering component is fixedly arranged on the rear side of the top of the base, which is used to contact the welded pipe sample and the welded pipe to be center-checked, so as to make them mutually center, and the fixing component comprises two L-shaped fixing blocks. The utility model drives the movable plate to slide along the connecting rod and squeeze the first spring, the second spring and the third spring through two arc-shaped clamping blocks, so as to facilitate clamping and fixing the welded pipes of different diameters between two adjacent arc-shaped clamping blocks, so as to facilitate maintaining the stability of the welded pipe during centering and checking, and improve the accuracy of centering and checking.

Description

Technical Field

[0001] The utility model relates to the technical field of welded pipe centering verification, in particular to a device for centering verification of processed and formed welded pipes. Background Art

[0002] The blanks used for welded pipes, i.e. welded steel pipes, are steel plates or strips. Due to their different welding processes, they are divided into furnace welded pipes, electric welded (resistance welded) pipes and automatic arc welded pipes. The production process of welded pipes on the market is mainly: strip steel (coil) uncoiling - strip steel (coil) flattening - end shearing and welding - looper - forming - welding forming - internal and external weld bead removal - pre-correction - induction heat treatment - sizing and straightening - eddy current testing - cutting - water pressure inspection - pickling - final inspection - packaging and processing - factory sales. Therefore, in the pre-correction step of welded pipe production, a calibration device is usually used to detect the diameter and length of the welded pipe.

[0003] For example, a device for checking the centering of a processed welded pipe with Chinese patent application number CN202023208541.3 includes a base plate, on which two sets of parallel detection mechanisms are arranged side by side, and the detection mechanisms include two guide rails with overlapping axes, and the two guide rails are symmetrically distributed on the base plate, and a sliding seat is slidably connected to the two guide rails, and a push bracket is vertically arranged on the sliding seat, and a push block is arranged at the upper end of the push bracket. The utility model can ensure that the two pipes to be tested are kept in the center, which is convenient for detecting the size parameters of the pipes.

[0004] However, in actual use, when the welded pipe of the above device is placed on two support frames for centering, the position of the welded pipe is not fixed. In the subsequent calibration process, the position of the welded pipe is easily offset due to external factors, thereby reducing the accuracy of the calibration. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a device for centering and checking a processed welded pipe. Two arc-shaped clamping blocks drive a movable plate to slide along a connecting rod and squeeze a first spring, a second spring and a third spring, thereby facilitating the clamping and fixing of welded pipes of different diameters between two adjacent arc-shaped clamping blocks. This facilitates maintaining the stability of the welded pipe during centering and improves the accuracy of centering, and can effectively solve the problems in the background technology.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a device for centering and checking a processed welded pipe, comprising a base, four corners of the top of the base are fixed with telescopic rods, and a top plate is fixed between the top ends of the four telescopic rods;

[0007] Two fixing components are provided on the top of the top plate, which are used to clamp and fix the welded pipe sample and the welded pipe to be aligned and checked, so as to improve the accuracy of subsequent alignment and checking;

[0008] A centering assembly is fixedly arranged on the rear side of the top of the base, and is used to contact the welded pipe sample and the welded pipe to be calibrated so as to make them mutually centered;

[0009] The fixing assembly includes two L-shaped fixing blocks, which are respectively fixed on both sides of the top of the top plate. The front and rear sides of the top of the top plate are provided with slots, and the two L-shaped fixing blocks are respectively arranged on both sides of the slots. A connecting rod is fixed between the two L-shaped fixing blocks, and four movable plates are slidably provided on the connecting rod. Relative arc-shaped clamping blocks are respectively fixed at the bottom ends of the two movable plates.

[0010] Preferably, a first spring is fixedly provided between two L-shaped fixing blocks and adjacent movable plates, a second spring is fixedly provided between each pair of movable plates, and a third spring is fixedly provided between two adjacent movable plates.

[0011] Preferably, the first spring, the second spring and the third spring are all sleeved on the connecting rod, the four movable plates pass through the slot and extend to the bottom of the top plate, and the arc-shaped clamping block is arranged between the base and the top plate, so as to facilitate close contact with the welded pipe sample and the welded pipe to be aligned and checked, and fix them.

[0012] Preferably, the centering component includes a fixing plate, which is fixed on the rear side of the top of the base, an electric push rod is fixedly provided at the front center of the fixing plate, a centering plate is fixedly provided on the piston rod of the electric push rod, a rubber pad is fixedly provided on the front side of the centering plate, and the rubber pad is provided between the weld pipe sample and the rear end of the weld pipe to be centered and checked, so that the electric push rod can drive the centering plate and the rubber pad to push the weld pipe sample and the rear end of the weld pipe to be centered and checked, so as to facilitate their centering.

[0013] Preferably, a T-shaped slider is fixedly provided on one side of the base, and a T-shaped slide groove corresponding to and engaging with the T-shaped slider is opened on the other side of the base, so as to facilitate the splicing of multiple utility models and perform centering check on multiple welded pipes at the same time, thereby improving the efficiency of the centering check.

[0014] Preferably, two horizontally distributed fixed bottom plates are fixedly provided on the top of the base for holding welded pipe samples and welded pipes to be aligned and checked.

[0015] Compared with the prior art, the utility model provides a centering calibration device for processed and formed welded pipes, which has the following beneficial effects:

[0016] 1. The two arc-shaped clamping blocks on the top of the welded pipe sample and the welded pipe that needs to be aligned are placed close to the two sides of the top of the welded pipe. At the same time, the arc-shaped clamping blocks will squeeze the first spring and the second spring, driving the moving plate to slide horizontally along the connecting rod and inside the slot, so that welded pipes of different diameters can be clamped and fixed between two adjacent arc-shaped clamping blocks, so as to maintain the stability of the welded pipe during the subsequent alignment verification and improve the accuracy of the alignment verification.

[0017] 2. By setting the centering component, after the welded pipe sample and the welded pipe to be calibrated are fixed, the electric push rod on the front side of the fixed plate starts to work, and the piston rod of the electric push rod pushes the centering thick plate to drive the rubber pad to move forward and backward, and squeezes the welded pipe sample and the rear end of the welded pipe to be calibrated, thereby realizing mutual alignment between the welded pipe sample and the welded pipe to be calibrated, which is convenient for improving the accuracy of subsequent calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a rear view of the overall structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the fixing assembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the fixing assembly of the utility model;

[0022] Figure 5 It is a schematic diagram of the centering component structure of the utility model.

[0023] In the figure: 1 base, 2 fixed bottom plate, 3 T-shaped slide, 4 telescopic rod, 5 top plate, 6 slot, 7 fixed component, 8 centering component, 9 T-shaped slide;

[0024] 71 L-type fixed block, 72 connecting rod, 73 first spring, 74 second spring, 75 third spring, 76 moving plate, 77 arc-shaped clamping block, 81 fixed plate, 82 electric push rod, 83 centering thick plate, 84 rubber pad. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1-5As shown, the utility model provides a device for centering and checking a processed welded pipe, comprising a base 1, wherein telescopic rods 4 are fixedly provided at the four corners of the top of the base 1, a top plate 5 is fixedly provided between the top ends of the four telescopic rods 4, a T-shaped slider 9 is fixedly provided on one side of the base 1, and a T-shaped slide groove 3 corresponding to the T-shaped slider 9 is provided on the other side of the base 1, so as to facilitate splicing of multiple utility models with each other and perform centering and checking of multiple welded pipes at the same time, thereby improving the efficiency of the centering and checking, and two horizontally distributed fixed bottom plates 2 are fixedly provided on the top of the base 1 for holding welded pipe samples and welded pipes to be center-checked.

[0027] like Figure 1-4 As shown, two fixing components 7 are provided on the top of the top plate 5, which are used to clamp and fix the welded pipe samples and the welded pipes to be aligned and checked, so as to improve the accuracy of subsequent alignment checks. The fixing component 7 includes two L-shaped fixing blocks 71, and the two L-shaped fixing blocks 71 are respectively fixed on both sides of the top of the top plate 5. The front and rear sides of the top of the top plate 5 are provided with slots 6, and the two L-shaped fixing blocks 71 are respectively provided on both sides of the slots 6. A connecting rod 72 is fixed between the two L-shaped fixing blocks 71, and four movable plates 76 are slidably provided on the connecting rod 72, and relative arc-shaped clamping blocks 77 are respectively fixed at the bottom ends of the two movable plates 76.

[0028] A first spring 73 is fixedly provided between the two L-shaped fixed blocks 71 and the adjacent movable plates 76, a second spring 74 is fixedly provided between the two movable plates 76, a third spring 75 is fixedly provided between the two adjacent movable plates 76, the first spring 73, the second spring 74 and the third spring 75 are all sleeved on the connecting rod 72, the four movable plates 76 pass through the slot 6 and extend to the bottom of the top plate 5, and an arc-shaped clamping block 77 is provided between the base 1 and the top plate 5, so as to be close to and fix the welded pipe sample and the welded pipe to be aligned and checked.

[0029] By setting the fixing component 7 and adjusting the height of the four telescopic rods 4 according to the height of the welded pipe, the welded pipe sample and the welded pipe that needs to be calibrated are taken, passed between the base 1 and the top plate 5, and respectively placed on the top of the two fixed bottom plates 2, and the two arc-shaped clamping blocks 77 on the top are made to be close to the two sides of the top of the welded pipe. At the same time, the arc-shaped clamping blocks 77 will squeeze the first spring 73 and the second spring 74, drive the movable plate 76 to slide along the connecting rod 72, and drive the movable plate 76 to slide horizontally along the inside of the slot 6, so as to facilitate the clamping and fixing of welded pipes of different diameters between the two adjacent arc-shaped clamping blocks 77, so as to facilitate the subsequent centering verification, maintain the stability of the welded pipe, and improve the accuracy of the centering verification.

[0030] like Figure 2 , 5As shown, a centering component 8 is fixedly provided on the top rear side of the base 1, which is used to contact the weld pipe sample and the weld pipe to be centered and checked so that they are centered with each other. The centering component 8 includes a fixed plate 81, which is fixedly provided on the top rear side of the base 1. An electric push rod 82 is fixedly provided at the front center of the fixed plate 81. A centering plate 83 is fixedly provided on the piston rod of the electric push rod 82. A rubber pad 84 is fixedly provided on the front side of the centering plate 83, and the rubber pad 84 is provided between the weld pipe sample and the rear end of the weld pipe to be centered and checked, so that the electric push rod 82 can drive the centering plate 83 and the rubber pad 84 to push the weld pipe sample and the rear end of the weld pipe to be centered and checked, so as to facilitate their centering.

[0031] By setting the centering component 8, after the welded pipe sample and the welded pipe to be calibrated are fixed, the electric push rod 82 on the front side of the fixing plate 81 starts to work, and the piston rod of the electric push rod 82 pushes the centering thick plate 83 to drive the rubber pad 84 to move forward and backward, and squeezes the rear end of the welded pipe sample and the welded pipe to be calibrated, thereby realizing mutual alignment between the welded pipe sample and the welded pipe to be calibrated, which is convenient for improving the accuracy of subsequent calibration.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A device for checking the centering of a processed welded pipe, comprising a base (1), characterized in that: The four corners of the top of the base (1) are all fixedly provided with telescopic rods (4), and a top plate (5) is fixedly provided between the top ends of the four telescopic rods (4); Two fixing components (7) are provided on the top of the top plate (5) for clamping and fixing the welded pipe sample and the welded pipe to be aligned and checked, so as to improve the accuracy of subsequent alignment and checking; A centering assembly (8) is fixedly provided on the top rear side of the base (1) and is used to contact the welded pipe sample and the welded pipe to be calibrated so that they are centered with each other; The fixing assembly (7) comprises two L-shaped fixing blocks (71), the two L-shaped fixing blocks (71) are respectively fixedly arranged on both sides of the top of the top plate (5), the top of the top plate (5) is provided with slots (6) on both sides of the front and rear sides, the two L-shaped fixing blocks (71) are respectively arranged on both sides of the slots (6), a connecting rod (72) is fixedly arranged between the two L-shaped fixing blocks (71), four movable plates (76) are slidably arranged on the connecting rod (72), and opposite arc-shaped clamping blocks (77) are respectively fixedly arranged at the bottom ends of the two movable plates (76).

2. A centering inspection device for a processed welded pipe according to claim 1, characterized in that: A first spring (73) is fixedly arranged between the two L-shaped fixed blocks (71) and the adjacent movable plates (76), a second spring (74) is fixedly arranged between each pair of movable plates (76), and a third spring (75) is fixedly arranged between two adjacent movable plates (76).

3. A centering inspection device for a processed welded pipe according to claim 2, characterized in that: The first spring (73), the second spring (74) and the third spring (75) are all sleeved on the connecting rod (72), the four movable plates (76) pass through the slot (6) and extend to the bottom of the top plate (5), and the arc-shaped clamping block (77) is arranged between the base (1) and the top plate (5).

4. The centering inspection device for a processed welded pipe according to claim 1, characterized in that: The centering assembly (8) comprises a fixing plate (81), wherein the fixing plate (81) is fixedly arranged on the rear side of the top of the base (1), an electric push rod (82) is fixedly arranged at the center of the front side of the fixing plate (81), a centering thick plate (83) is fixedly arranged on the piston rod of the electric push rod (82), a rubber pad (84) is fixedly arranged on the front side of the centering thick plate (83), and the rubber pad (84) is arranged between the welded pipe sample and the rear end of the welded pipe to be calibrated.

5. The centering inspection device for a processed welded pipe according to claim 1, characterized in that: A T-shaped sliding block (9) is fixedly provided on one side of the base (1), and a T-shaped sliding groove (3) corresponding to and engaged with the T-shaped sliding block (9) is provided on the other side of the base (1).

6. The centering inspection device for a processed welded pipe according to claim 1, characterized in that: Two horizontally distributed fixed bottom plates (2) for holding welded pipe samples and welded pipes to be aligned and checked are fixedly provided on the top of the base (1).

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