Correcting device for high-frequency welded pipe

Abstract

A correcting device for a high-frequency welded pipe comprises a base, a fixing plate is fixedly installed on one side of the base, a hydraulic push rod is fixedly installed on the fixing plate through a connecting plate, a first correcting block is fixedly installed at the movable end of the hydraulic push rod, and two second correcting blocks are arranged on the base. The spring rod is installed on the base, the placing plate is installed at the movable end of the spring rod, the two inclined rotating rollers are rotationally installed on the placing plate, the rotating rollers on the same placing plate are distributed in a V shape, and threads with opposite rotating directions are arranged on the peripheries of the rotating rollers. The device is simple in structure, ingenious in conception, capable of driving the high-frequency welded pipe to move and rotate through one driving device, easy to operate, free of manual rotation of operators, more labor-saving, capable of meeting actual requirements and suitable for popularization.

Description

Technical Field

[0001] The utility model belongs to the field of correction equipment, in particular to a correction device for high-frequency welded pipes. Background Art

[0002] Welded steel pipe, also known as welded pipe, is a steel pipe made by welding steel plates or strips after curling and forming. The production process of welded steel pipe is simple, the production efficiency is high, the varieties and specifications are many, and the equipment investment is small, but the general strength is lower than that of seamless steel pipe; high-frequency welded pipe is formed by hot-rolled coils through a forming machine, and the skin effect and proximity effect of high-frequency current are used to heat and melt the edge of the tube blank, and pressure welding is performed under the action of the extrusion roller to achieve production; the characteristics of high-frequency welded pipe are: high welding speed, small welding heat-affected zone, thin-walled pipe can be welded, metal pipe can be welded, and high-frequency welded pipe may be accidentally welded during use Bending, at this time, the bent high-frequency welded pipe needs to be corrected; the National Intellectual Property Administration issued an authorization announcement on February 12, 2021, and the authorization announcement number is CN212525519U: "A correction device for high-frequency welded pipes". The patent discloses a correction device that is convenient for correcting high-frequency welded pipes at the site of use. However, when correction is required at other positions in the device, the operator needs to manually rotate the high-frequency welded pipe, which is more laborious. Therefore, we designed a correction device that can both move the high-frequency welded pipe and drive it to rotate. Utility Model Content

[0003] The utility model provides a high-frequency welded pipe correction device, which is used to solve the defects in the prior art.

[0004] The utility model is realized through the following technical solutions:

[0005] A correction device for high-frequency welded pipes comprises a base, a fixed plate is fixedly installed on one side of the base, a hydraulic push rod is fixedly installed on the fixed plate through a connecting plate, a first correction block is fixedly installed on the movable end of the hydraulic push rod, and two second correction blocks are arranged on the base, characterized in that: spring rods are respectively arranged on the outer sides of the second correction blocks, the spring rods are installed on the base, a placement plate is installed on the movable end of the spring rod, two inclined rotating rollers are respectively rotatably installed on the placement plate, the rotating rollers on the same placement plate are distributed in a V shape, and threads with opposite rotation directions are arranged on the outer periphery.

[0006] As described above, a correction device for a high-frequency welded pipe is provided, wherein a screw is rotatably installed on the base, the threads on both sides of the screw have opposite rotation directions, the outer circumferences on both sides of the screw are respectively threadedly mounted with first sliders, the spring rods are respectively fixedly mounted on the corresponding first sliders, the second correction block is fixedly mounted on the cross plate, and the cross plate is fixedly mounted on the corresponding first slider through the support rod.

[0007] In the high-frequency welded pipe correction device as described above, a hand wheel is fixedly mounted on one end of the screw rod.

[0008] In the correction device for high-frequency welded pipe as described above, a coaxial motor is fixedly mounted on one end of each rotating roller, and the motor is fixedly mounted on a corresponding placement plate.

[0009] In the correction device for a high-frequency welded pipe as described above, telescopic rods are fixedly installed on both sides of the placement plate, a second slider is fixedly installed at the bottom of the fixed end of the telescopic rod, a sliding groove is provided on the base corresponding to the second slider, and the second slider is slidably installed in the corresponding sliding groove.

[0010] As described above, a correction device for a high-frequency welded pipe, vertical pipes are fixedly installed on the first sliding block, through grooves are respectively provided on both sides of the vertical pipe, cross bars are slidably installed in the two through grooves, a movable ring is slidably installed on the outer periphery of the vertical pipe, the cross bar is fixedly installed on the movable ring, the lower half of the outer periphery of the vertical pipe is provided with threads, the lower half of the outer periphery of the vertical pipe is threaded to cooperate with the installation of an internally threaded pipe, the internally threaded pipe is rotatably installed on the movable ring, and the fixed end of the spring rod is fixedly installed on the cross bar.

[0011] In the high-frequency welded pipe correction device as described above, when the spring rod is in an unstretched and uncompressed state, the height of the rotating roller is higher than the height of the second correction block.

[0012] The advantages of the utility model are: the utility model has a simple structure and an ingenious design. It can drive the high-frequency welded pipe to move and rotate by using a driving device. The operation is simple and does not require manual rotation by the operator. It is more labor-saving and can meet actual needs and is suitable for promotion. When using the utility model, the high-frequency welded pipe is first placed between the rotating rollers. At this time, the two rotating rollers on the same placement plate are driven to rotate in different directions. The high-frequency welded pipe can be driven to move left or right through the thread to change the position of the high-frequency welded pipe. When the two rotating rollers on the same placement plate rotate in the same direction, the high-frequency welded pipe can be driven to rotate, so as to facilitate the correction of different positions of the high-frequency welded pipe. When the position adjustment of the high-frequency welded pipe is completed, the hydraulic push rod is controlled to extend, and the hydraulic push rod drives the first correction block to move downward. The first correction block cooperates with the second correction block to correct the high-frequency welded pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] 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 some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a structural schematic diagram of the utility model; Figure 2 yes Figure 1A-direction view; Figure 3 yes Figure 1 B view.

[0015] Figure numerals: 1, base, 2, fixed plate, 3, connecting plate, 4, hydraulic push rod, 5, first correction block, 6, second correction block, 7, spring rod, 8, placement plate, 9, rotating roller, 20, screw rod, 21, first slider, 22, cross plate, 23, support rod, 30, hand wheel, 40, motor, 50, telescopic rod, 51, second slider, 52, slide groove, 60, vertical tube, 61, through groove, 62, cross rod, 63, movable ring, 64, internal threaded tube. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] A correction device for high frequency welded pipes, such as Figure 1 , 2As shown in , 3, it includes a base 1, a fixed plate 2 is fixedly installed on one side of the base 1, a hydraulic push rod 4 is fixedly installed on the fixed plate 2 through a connecting plate 3, a first correction block 5 is fixedly installed on the movable end of the hydraulic push rod 4, two second correction blocks 6 are arranged on the base 1, trapezoidal grooves are respectively opened on the second correction blocks 6, and the high-frequency welded pipe 100 is placed in the trapezoidal grooves. The two second correction blocks 6 are symmetrically distributed on the left and right, and the first correction block 5 is located on the mid-vertical line of the connecting line of the two second correction blocks 6, characterized in that: spring rods 7 are respectively arranged on the outer sides of the second correction blocks 6, the spring rods 7 are installed on the base 1, and a placement plate 8 is installed on the movable end of the spring rod 7. Two inclined rotating rollers 9 are rotatably installed on the placement plate 8, and the rotating rollers 9 on the same placement plate 8 are symmetrically distributed front and back, and short shafts are respectively fixedly installed at both ends of the rotating roller 9, and the short shafts are respectively rotatably connected to the inner hole of the shaft seat through bearings, and the shaft seats are respectively fixedly installed on the placement plates 8, and the rotating rollers 9 on the same placement plate 8 are distributed in a V shape, and the outer periphery is provided with threads with opposite rotation directions. The utility model has a simple structure and an ingenious design. It uses a driving device to drive the high-frequency welded pipe 100 to move and rotate. It is easy to operate and does not require manual rotation by the operator. It is more labor-saving, can meet actual needs, and is suitable for promotion. When using the utility model, first place the high-frequency welded pipe 100 between the rotating rollers 9. At this time, drive the two rotating rollers 9 on the same placement plate 8 to rotate in different directions, and can drive the high-frequency welded pipe 100 to move left or right through the thread to change the position of the high-frequency welded pipe 100. When the two rotating rollers 9 on the same placement plate 8 rotate in the same direction, the high-frequency welded pipe 100 can be driven to rotate, so as to facilitate the correction of different positions of the high-frequency welded pipe 100. When the position adjustment of the high-frequency welded pipe 100 is completed, the hydraulic push rod 4 is controlled to extend, and the hydraulic push rod 4 drives the first correction block 5 to move downward. The first correction block 5 cooperates with the second correction block 6 to correct the high-frequency welded pipe 100.

[0018] Specifically, as shown in the figure, the screw rod 20 is rotatably installed on the base 1 of the present embodiment, and a plurality of shaft seats are fixedly installed on the base 1. The outer periphery of the screw rod 20 is rotatably connected to the inner hole of the shaft seat through the bearing, and the threads on both sides of the screw rod 20 are rotated in opposite directions. The outer periphery on both sides of the screw rod 20 is respectively threadedly installed with the first slider 21, and the first sliders 21 on both sides are symmetrically distributed left and right. The first slider 21 is provided with a threaded through hole, and the screw rod 20 is threadedly installed in the threaded through hole. The first slider 21 is a rectangular block, and the bottom of the first slider 21 is in sliding contact with the base 1, which can prevent the first slider 21 from rotating with the screw rod 20 when the screw rod 20 rotates, thereby ensuring that the first slider 21 can only move left and right along the screw rod 20, and the spring rod 7 is respectively fixedly installed on the corresponding first slider 21, and the second correction block 6 is fixedly installed on the cross plate 22, and the cross plate 22 is fixedly installed on the corresponding first slider 21 through the support rod 23. By rotating the screw rod 20, the first slider 21 can be driven to move toward or away from each other, so that the distance between the two second correction blocks 6 can be changed according to actual needs.

[0019] Specifically, as shown in the figure, one end of the screw rod 20 in this embodiment is fixedly mounted with a hand wheel 30. Rotating the screw rod 20 by the hand wheel 30 is more convenient and labor-saving.

[0020] Further, as shown in the figure, a coaxial motor 40 is fixedly installed at one end of the rotating roller 9 in this embodiment, the output shaft of the motor 40 is coaxial with and fixedly connected to the short shaft at one end of the rotating roller 9, and the motor 40 is fixedly installed on the corresponding placement plate 8. The motor 40 can drive the rotating roller 9 to rotate.

[0021] Further, as shown in the figure, the two sides of the placement plate 8 described in this embodiment are respectively fixedly installed with telescopic rods 50, the movable ends of the telescopic rods 50 are fixedly installed at the bottom of the placement plate 8, and the telescopic rods 50 on the same placement plate 8 are symmetrically distributed front and back, and the second slider 51 is fixedly installed at the bottom of the fixed end of the telescopic rod 50, and a slide groove 52 is provided on the base 1 corresponding to the second slider 51, and the second slider 51 is slidably installed in the corresponding slide groove 52, the second slider 51 is a dovetail slider, and the slide groove 52 is a dovetail slide groove, and the second slider 51 can only slide in the slide groove 52, which can prevent the second slider 51 from being pulled out of the slide groove 52 by the telescopic rod 50 when the placement plate 8 moves up and down. When the placement plate 8 moves, the telescopic rod 50 can drive the second slider 51 to slide in the corresponding slide groove 52, which can make the placement plate 8 move more smoothly, and when the placement plate 8 moves up or down with the spring rod 7, the telescopic rod 50 can extend or shorten with the placement plate 8.

[0022] Further, as shown in the figure, in this embodiment, a vertical tube 60 is fixedly installed on the first sliding block 21, and through grooves 61 are respectively provided on both sides of the vertical tube 60. Cross bars 62 are slidably installed in the two through grooves 61. A movable ring 63 is slidably installed on the outer periphery of the vertical tube 60. The cross bar 62 is fixedly installed on the movable ring 63. Both ends of the cross bar 62 are respectively fixedly connected to the inner wall of the movable ring 63. The lower half of the outer periphery of the vertical tube 60 is provided with a thread. The lower half of the outer periphery of the vertical tube 60 is threaded to cooperate with the installation of an internal threaded tube 64. The internal threaded tube 64 is rotatably installed on the movable ring 63. The bottom of the internal threaded tube 64 is rotatably connected to the top of the movable ring 63 through a bearing. The fixed end of the spring rod 7 is fixedly installed on the cross bar 62. By rotating the internal threaded tube 64, the internal threaded tube 64 moves along the vertical tube 60 with the moving ring 63, and the moving ring 63 drives the cross bar 62 and the spring rod 7 to move up and down. The size of the spring rod 7 exposed outside the vertical tube 60 is changed according to actual needs. When the spring rod 7 moves downward, the distance that the spring rod 7 needs to be compressed during the correction process becomes shorter; when the spring rod 7 moves upward, the distance that needs to be compressed becomes longer.

[0023] Furthermore, as shown in the figure, when the spring rod 7 of the present embodiment is in an unstretched and uncompressed state, the height of the rotating roller 9 is higher than the height of the second correction block 6. When the high-frequency welded pipe 100 is located between the rotating rollers 9, the rotating rollers 9 are not in contact with the second correction block 6, thereby reducing the friction between the rotating rollers 9 and the second correction block 6 when the high-frequency welded pipe 100 is driven to move or rotate, thereby reducing damage to the high-frequency welded pipe 100.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A correction device for a high-frequency welded pipe, comprising a base (1), a fixed plate (2) fixedly mounted on one side of the base (1), a hydraulic push rod (4) fixedly mounted on the fixed plate (2) via a connecting plate (3), a first correction block (5) fixedly mounted on the movable end of the hydraulic push rod (4), two second correction blocks (6) provided on the base (1), characterized in that: The outer side of the second correction block (6) is provided with a spring rod (7), which is mounted on the base (1). A placement plate (8) is mounted on the movable end of the spring rod (7). Two obliquely placed rotating rollers (9) are rotatably mounted on the placement plate (8). The rotating rollers (9) on the same placement plate (8) are arranged in a V shape and have threads with opposite rotation directions on the outer circumference.

2. The high-frequency welded pipe correction device according to claim 1 is characterized in that: The base (1) is rotatably mounted with a screw rod (20), the threads on both sides of the screw rod (20) are rotated in opposite directions, the outer circumferences on both sides of the screw rod (20) are respectively threadedly mounted with first sliders (21), the spring rods (7) are respectively fixedly mounted on the corresponding first sliders (21), the second correction block (6) is fixedly mounted on the transverse plate (22), and the transverse plate (22) is fixedly mounted on the corresponding first sliders (21) via a support rod (23).

3. The high frequency welded pipe correction device according to claim 2, characterized in that: A hand wheel (30) is fixedly mounted on one end of the screw rod (20).

4. The high frequency welded pipe correction device according to claim 1, characterized in that: A coaxial motor (40) is fixedly mounted on one end of the rotating roller (9), and the motor (40) is fixedly mounted on the corresponding placement plate (8).

5. The high frequency welded pipe correction device according to claim 1, characterized in that: The two sides of the placement plate (8) are respectively fixedly mounted with telescopic rods (50), the bottom of the fixed end of the telescopic rod (50) is fixedly mounted with a second sliding block (51), a sliding groove (52) is provided on the base (1) corresponding to the second sliding block (51), and the second sliding block (51) is slidably mounted in the corresponding sliding groove (52).

6. The high frequency welded pipe correction device according to claim 2, characterized in that: The vertical tubes (60) are fixedly mounted on the first sliding block (21), through grooves (61) are respectively provided on both sides of the vertical tube (60), and cross bars (62) are slidably mounted in the two through grooves (61), and a movable ring (63) is slidably mounted on the outer periphery of the vertical tube (60), and the cross bar (62) is fixedly mounted on the movable ring (63). The lower half of the outer periphery of the vertical tube (60) is provided with a thread, and the lower half of the outer periphery of the vertical tube (60) is threadedly mounted with an internal threaded tube (64), and the internal threaded tube (64) is rotatably mounted on the movable ring (63), and the fixed end of the spring rod (7) is fixedly mounted on the cross bar (62).

7. The high frequency welded pipe correction device according to claim 2, characterized in that: When the spring rod (7) is in a non-stretched and non-compressed state, the height of the rotating roller (9) is higher than the height of the second correction block (6).

Images