Stainless steel pipe machining equipment

Abstract

The utility model relates to stainless steel pipe machining equipment which comprises a base and a steel pipe, a fixing pipe is arranged on the base, and the fixing pipe is arranged on the outer side of the steel pipe in a sleeving mode; a rotating pipe is rotationally arranged in the fixed pipe, and a clamping assembly used for clamping the steel pipe is arranged in the rotating pipe. A rodless air cylinder is arranged on the base in the length direction of the base, and a second air cylinder is arranged on a sliding block of the rodless air cylinder in the vertical direction. The end of a piston rod of the second air cylinder is connected with a welding head, and the head of the welding head faces the steel pipe. A push plate abutting against the steel pipe is arranged at one end of the steel pipe, and a pushing assembly used for driving the push plate to move in the axial direction of the steel pipe is arranged on the base. According to the welding device, the situation that the axial position of the steel pipe needs to be manually adjusted when the joint closing positions of the different positions of the same steel pipe are welded is avoided, and therefore the welding efficiency is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of steel pipe processing, and in particular to a stainless steel pipe processing device. Background Art

[0002] Steel pipe is a kind of steel with a hollow cross-section and a length greater than its diameter. Steel pipe is generally used to transport liquids. It can also be used to manufacture building frames and mechanical supports. In the production and processing of steel pipes, it is often necessary to weld steel pipes. There are many ways to weld steel pipes. There are two most commonly used welding methods. The first is to weld two steel pipes with the same diameter together to make a longer steel pipe. The other welding method is to weld the joint of the two steel pipes. Since the steel pipes need to be rotated when welding the two steel pipes together, and the steel pipes need to be moved axially when welding the joint of the steel pipes, the existing welding devices can basically only rotate the steel pipe or move the steel pipe axially, and cannot meet the above conditions at the same time.

[0003] For example, a steel pipe welding auxiliary device disclosed in the patent with publication number CN110524182B includes a horizontal plate, a bracket, a rotating sleeve, etc.; a bracket is installed at the bottom of the horizontal plate, and rotating sleeves are rotatably installed on the left and right sides of the top of the horizontal plate, and the tops of the two rotating sleeves are opened with special-shaped openings, and the two rotating sleeves are covered with sleeves, and the tops of the sleeves are connected with protrusions.

[0004] However, in actual use, the above-mentioned welding auxiliary device only supports the rotation of the steel pipe during the welding process, and cannot allow the steel pipe to move axially; therefore, when welding the joints at different positions in the length direction of the same steel pipe, the machine needs to be stopped each time welding at the next position to manually adjust the axial position of the steel pipe, which is very time-consuming and leads to low welding efficiency. Utility Model Content

[0005] In order to improve the problem that when welding joints at different positions on the same steel pipe, the axial position of the steel pipe needs to be stopped and adjusted manually each time welding at the next position, resulting in low welding efficiency, the present application provides a stainless steel pipe processing equipment.

[0006] The stainless steel pipe processing equipment provided in this application adopts the following technical solution:

[0007] A stainless steel pipe processing equipment comprises a base and a steel pipe, wherein the base is provided with a fixed pipe, and the fixed pipe is sleeved on the outside of the steel pipe; a rotating pipe is rotatably arranged inside the fixed pipe, and a clamping assembly for tightening the steel pipe is arranged inside the rotating pipe; a rodless cylinder is arranged on the base along the length direction of the base, and a second cylinder is arranged on the slider of the rodless cylinder in the vertical direction; a welding head is connected to the end of the piston rod of the second cylinder, and the head of the welding head faces the steel pipe; a push plate that contacts the steel pipe is arranged at one end of the steel pipe, and a pushing assembly for driving the push plate to move axially along the steel pipe is arranged on the base.

[0008] By adopting the above technical solution, when in use, the steel pipe is fixedly clamped inside the rotating tube by the clamping assembly, the rotating tube is driven to drive the steel pipe to rotate to adjust the circumferential position of the steel pipe, and the pushing assembly is used to push the steel pipe to move along the length direction of the base to adjust the axial position of the steel pipe until the part to be welded on the steel pipe faces upward to start the calibration work of the welding head before welding;

[0009] At this time, first start the rodless cylinder to adjust the welding head along the length direction of the base to be directly above the part to be welded, then start the second cylinder to adjust the welding head in the vertical direction until the welding head contacts the part to be welded, and finally start the rodless cylinder again to start welding.

[0010] The setting of the push assembly helps to adjust the axial position of the steel pipe after it is fixed; when the steel pipe is long or has multiple parts to be welded, the step of manually adjusting the position after loosening the steel pipe during welding is eliminated, making the welding of the steel pipe more convenient and greatly shortening the time used for position adjustment before welding, thereby effectively improving the problem of welding joints at different positions on the same steel pipe, where the machine needs to be stopped for manual adjustment of the axial position of the steel pipe each time welding at the next position is performed, which is very time-consuming and leads to low welding efficiency.

[0011] In a specific possible implementation scheme, the clamping assembly includes a fixed rod and a telescopic rod, and the fixed rod and the telescopic rod are both arranged on the inner wall of the rotating tube; the telescopic rod and the fixed rod are both connected to an arc plate at one end away from the rotating tube, and the arc plate is in contact with the steel tube.

[0012] By adopting the above technical solution, when in use, first place the steel pipe on the arc plate connected to the end of the fixed rod, and then control the telescopic rod to extend until the arc plate at the end of the telescopic rod touches the outer wall of the steel plate to achieve clamping and fixing; the setting of the telescopic rod and the fixed rod improves the stability of the steel pipe during welding.

[0013] In a specific feasible implementation scheme, an induction ring is provided on the push plate, and the induction ring is electrically connected to the telescopic rod; when the steel pipe contacts the induction ring, the induction ring controls the telescopic rod to retract through a control system.

[0014] By adopting the above technical solution, when in use, when the push plate hits the side wall of the steel pipe, that is, when the push plate needs to be used to adjust the position of the steel pipe, the side wall of the steel pipe triggers the induction ring, and the induction ring sends a control signal to control the retraction of the telescopic rod to release the clamping assembly from clamping the steel pipe, thereby avoiding obstruction of the clamping assembly to the adjustment of the axial position of the steel pipe; the setting of the sensor makes the adjustment of the steel pipe position smoother, eliminates the step of manual intervention, and improves the welding efficiency of the steel pipe to a certain extent.

[0015] In a specific possible implementation manner, a rubber pad is provided on a surface of the arc plate close to the steel pipe.

[0016] By adopting the above technical solution, the setting of the rubber pad protects the outer wall of the steel pipe to a certain extent, effectively avoiding the arc plate from causing damage to the outer wall of the steel pipe. At the same time, the rubber pad increases the friction between the steel pipe and the arc plate, reducing the possibility of relative movement between the steel pipe and the arc plate to a certain extent.

[0017] In a specific possible implementation scheme, a driving assembly for driving the rotating tube to rotate is provided under the rotating tube; the driving assembly includes an annular rack provided on the outer side wall of the rotating tube, a first motor is provided on the base and the output shaft of the first motor is coaxially connected to a driving gear, and the driving gear is meshed with the annular rack.

[0018] By adopting the above technical solution, when in use, the first motor is started to drive the active gear to rotate, and the active gear drives the annular rack to rotate, thereby driving the rotating tube to rotate relative to the fixed tube; thereby, the adjustment of the circumferential position of the steel pipe during welding is achieved, and the drive assembly has a locking effect, which can effectively prevent the circumferential rotation of the steel pipe during welding, thereby causing deviation in the welding position.

[0019] In a specific possible implementation manner, rollers evenly distributed along the circumference of the fixed tube are rotatably connected between the fixed tube and the rotating tube.

[0020] In a specific feasible implementation scheme, a plurality of convex rings are provided on the roller along the length direction of the roller, a first limiting ring groove corresponding one-to-one to the convex ring is provided on the inner wall of the fixed tube, and a second limiting ring groove corresponding one-to-one to the convex ring is provided on the inner wall of the rotating tube; the first limiting ring groove is slidably matched with the convex ring, and the second limiting ring groove is slidably matched with the convex ring.

[0021] By adopting the above technical solution, the setting of the rollers effectively reduces the friction between the rotating tube and the fixed tube when the rotating tube rotates relative to each other, making the rotation of the rotating tube smoother; the rotational cooperation between the convex ring and the groove limits the position of the rotating tube in the fixed tube, effectively avoiding the displacement between the rotating tube and the fixed tube along the length direction of the fixed tube, thereby preventing the rotating tube from falling off, and increasing the stability of the equipment.

[0022] In a specific possible implementation scheme, the pushing assembly includes a bar-shaped rack and a guide bar; the bar-shaped rack and the guide bar are both arranged along the length direction of the base, and the guide bar passes through the push plate and slides with the push plate; the push plate is rotatably connected to a driven gear on the side away from the guide bar, and the driven gear is meshed with the bar-shaped rack; one end of the driven gear is coaxially connected to a second motor.

[0023] By adopting the above technical solution, when in use, the second motor is started to drive the driven gear to rotate, and the driven gear moves along the length direction of the strip rack under the meshing action, the driven gear drives the motor to move, and then the motor drives the push plate, and finally the push plate drives the steel pipe to move along the length direction of the base under the limiting action of the guide bar; the structure is simple and practical, and the stability of the steel pipe during axial position adjustment is improved.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The setting of the driving assembly helps to adjust the circumferential position of the steel pipe after the steel pipe is fixed, and the setting of the pushing assembly helps to adjust the axial position of the steel pipe after the steel pipe is fixed; the structure is simple and the practicability is high.

[0026] 2. When the steel pipe is long or has multiple parts to be welded, the step of manually adjusting the position after loosening the steel pipe during welding is eliminated, making the welding of the steel pipe more convenient and greatly shortening the time for position adjustment before welding. This effectively improves the problem that when welding the joints at different positions on the same steel pipe, the axial position of the steel pipe needs to be manually adjusted after each welding at the next position, which is very time-consuming and leads to low welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a front view of a stainless steel pipe processing equipment according to an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view of an embodiment of the present application for illustrating the positional relationship between the fixed tube and the rotating tube.

[0029] Figure 3It is a partial cross-sectional view of an embodiment of the present application, which is used to reflect the positional relationship between the roller, the fixed tube and the rotating tube.

[0030] Figure 4 It is a partial schematic diagram of the push plate of the embodiment of the present application.

[0031] Explanation of the reference numerals in the accompanying drawings: 01, base; 02, steel pipe; 03, support frame; 1, fixed pipe; 11, roller; 111, convex ring; 112, groove; 12, limit rod; 13, first limit ring groove; 2, rotating pipe; 21, second limit ring groove; 3, clamping assembly; 31, fixed rod; 32, arc plate; 321, rubber pad; 33, telescopic rod; 4, driving assembly; 41, annular rack; 42, driving gear; 43, first motor; 5, welding head; 51, rodless cylinder; 52, second cylinder; 6, push plate; 61, induction ring; 7, pushing assembly; 71, strip rack; 72, driven gear; 73, second motor; 74, guide strip. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0033] The embodiment of the present application discloses a stainless steel pipe processing device.

[0034] Reference Figure 1 A stainless steel pipe processing equipment includes a base 01, a fixed pipe 1, a rotating pipe 2, a driving assembly 4 for driving the rotating pipe 2 to rotate, a welding head 5, a push plate 6, and a pushing assembly 7 for driving the push plate 6 to move axially along the steel pipe 02. A support frame 03 is fixedly connected to the base 01, and the welding head 5 is slidably matched with the support frame 03. The welding head 5 is located above the steel pipe 02 and the head faces the steel pipe 02; in this embodiment, the welding head 5 is slidable along the length direction of the base 01 by means of a rodless cylinder 51 fixedly connected to the support frame 03 along the length direction of the support frame 03, and is lifted and lowered in the vertical direction by means of a second cylinder 52. The second cylinder 52 is placed vertically and the end of the second cylinder 52 away from the piston rod is fixedly connected to the slider of the rodless cylinder 51, and the welding head 5 is fixedly connected to the end of the piston rod of the second cylinder 52.

[0035] Reference Figure 1 The fixed tube 1 is sleeved on the outside of the steel tube 02. The fixed tube 1 is arranged on the base 01 along the length direction of the base 01 and each fixed tube 1 is fixedly connected to the base 01 through a vertical plate. In this embodiment, two fixed tubes 1 are arranged at intervals along the length direction of the base 01 as an example, and the central axes of these two fixed tubes 1 coincide with each other. When the length of the steel tube 02 to be welded is relatively long, more fixed tubes 1 with coincident central axes can be arranged along the length direction of the base 01 to avoid tilting of the steel tube 02 as much as possible, thereby improving the stability of the steel tube 02 during welding.

[0036] Reference Figure 1 and Figure 2 A plurality of rollers 11 are evenly arranged on the inner wall of the fixed tube 1 along the circumference of the fixed tube 1, the length direction of the plurality of rollers 11 is consistent with the length direction of the base 01, and the rollers 11 are rotatably connected to the inner wall of the fixed tube 1 through a limiting rod 12; the rotating tube 2 passes through the fixed tube 1 and rotatably cooperates with the rollers 11.

[0037] Reference Figure 2 A clamping assembly 3 for fixing the position of the steel pipe 02 in the rotating tube 2 is provided on the inner wall of the rotating tube 2, and the clamping assembly 3 includes a fixed rod 31, an arc plate 32 and a telescopic rod 33; the fixed rod 31 and the telescopic rod 33 are both fixedly connected to the inner wall of the rotating plate, and both face the center of the rotating tube 2; the end of the fixed rod 31 away from the rotating plate is fixedly connected to an arc plate 32, and the piston rod of the telescopic rod 33 is fixedly connected to the other arc plate 32. In order to prevent the arc plate 32 from damaging the outer wall of the steel pipe 02, a rubber pad 321 is fixedly connected to the side of the arc plate 32 close to the steel pipe 02, and the rubber pad 321 also plays a certain anti-slip role.

[0038] The telescopic rod 33 of this embodiment takes an electric telescopic rod as an example. When the steel pipe 02 in the rotating rod needs to be fixed, in the initial state, the outer wall of the steel pipe 02 contacts the arc plate 32 at the end of the fixing rod 31. At this time, the piston rod end of the telescopic rod 33 is controlled to approach the outer wall of the steel pipe 02 until the arc plate 32 at the end of the telescopic rod 33 contacts the outer wall of the steel pipe 02, thereby fixing the steel pipe 02 between the two arc plates 32.

[0039] Reference Figure 1 and Figure 2 The driving assembly 4 includes an annular rack 41, a driving gear 42 and a first motor 43; the annular rack 41 is fixedly connected to the outer wall of the rotating tube 2, and is rotatably connected to the driving gear 42 by means of a vertical plate fixedly connected to the base 01, and a first motor 43 is fixedly connected to the other side of the vertical plate, and the output shaft of the first motor 43 is coaxially connected to the driving gear 42; the driving gear 42 and the annular rack 41 are meshed with each other; the first motor 43 of this embodiment adopts a brake motor to realize the locking of the circumferential position of the steel pipe 02 during welding work.

[0040] Reference Figure 3In order to reduce the relative movement of the rotating tube 2 and the fixed tube 1 in the horizontal direction, that is, the possibility of the rotating tube 2 slipping or falling off along the length direction of the fixed tube 1, a plurality of convex rings 111 are arranged on the outer wall of the roller 11 along the length direction of the roller 11. In this embodiment, two convex rings 111 are taken as an example and the convex rings 111 are fixedly sleeved on the outer wall of the roller 11; a first limiting ring groove 13 corresponding to the convex ring 111 is arranged on the inner wall of the fixed tube 1, and a second limiting ring groove 21 corresponding to the convex ring 111 is arranged on the inner wall of the rotating tube 2; each convex ring 111 is slidably matched with the corresponding first limiting ring groove 13, and each convex ring 111 is slidably matched with the corresponding second limiting ring groove 21. In this way, when the rotating tube 2 is subjected to a force along the length direction of the fixed tube 1, the convex ring 111 can play a certain limiting role.

[0041] Reference Figure 1 and Figure 4 The push plate 6 is located on the base 01 and can slide along the length direction of the base 01. An induction ring 61 electrically connected to the telescopic rod 33 is provided on the side of the push plate 6 close to the steel pipe 02; when the push plate 6 contacts the steel pipe 02, the end of the steel pipe 02 triggers the induction ring 61. At this time, the induction ring 61 controls the piston rod of the telescopic rod 33 to start retracting through the control system to relax the clamping of the arc plate 32 on the steel pipe 02.

[0042] Reference Figure 1 and Figure 4 The push assembly 7 includes a bar-shaped rack 71, a driven gear 72, a second motor 73 and a guide bar 74. The bar-shaped rack 71 and the guide bar 74 are both arranged on the base 01 along the length direction of the base 01 and are fixedly connected to the base 01. The guide bar 74 passes through the push plate 6 and is slidably connected to the push plate 6. The driven gear 72 is rotatably connected to the side of the push plate 6 away from the guide bar 74. In this embodiment, the rotatable connection between the driven gear 72 and the push plate 6 can be achieved by means of a vertical plate fixedly connected to the push plate 6; the second motor 73 is fixedly connected to the push plate 6 and the output shaft of the second motor 73 is coaxially connected to the driven gear 72; the bar-shaped rack 71 and the driven gear 72 are meshed with each other.

[0043] When the welding of the welding part at the current length position is completed and it needs to be adjusted to the next welding part of the steel pipe 02, the second motor 73 is started to drive the driven gear 72 to rotate, and the driven gear 72 moves along the length direction of the bar rack 71 under the meshing action, and the driven gear 72 drives the push plate 6 to move along the length direction of the base 01 under the restriction of the guide bar 74 until the side wall of the steel pipe 02 contacts the push plate 6 and contacts the induction ring 61, at which time the telescopic rod 33 drives the arc plate 32 to retract to release the clamping of the steel pipe 02;

[0044] The push plate 6 pushes the steel pipe 02 to move in the rotating tube 2 until the next welding part of the steel pipe 02 comes below the position that the welding head 5 can reach. At this time, the second motor 73 is controlled to rotate in the opposite direction to control the push plate 6 to leave the steel pipe 02. At this time, the induction ring 61 is separated from the side wall of the steel pipe 02, and the telescopic rod 33 drives the arc plate 32 to approach the outer wall of the steel pipe 02 to clamp and fix the steel pipe 02 again, and finally the next round of welding work begins.

[0045] The implementation principle of the stainless steel pipe processing equipment of the embodiment of the present application is as follows: when in use, the steel pipe 02 is inserted into the rotating pipe 2 and placed on the arc plate 32 on the fixed rod 31, and the telescopic rod 33 is controlled to extend until the arc plate 32 on the telescopic rod 33 contacts the outer wall of the steel pipe 02 to complete the clamping; the first motor 43 is started to drive the driving gear 42 to rotate, and the driving gear 42 drives the annular rack 41 to rotate, thereby driving the rotating pipe 2 to rotate relative to the fixed pipe 1 until the part of the steel pipe 02 to be welded faces upward;

[0046] Start the rodless cylinder 51 to drive the welding head 5 to move along the length direction of the base 01 until the welding head 5 is just above the starting position of the part to be welded, and then start the second cylinder 52 to drive the welding head 5 to rise and fall until the head of the welding head 5 touches the outer wall of the steel pipe 02; finally, start the rodless cylinder 51 to drive the welding head 5 to move slowly along the length direction of the base 01 to weld the part to be welded of the steel pipe 02.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A stainless steel pipe processing equipment, characterized in that: The invention comprises a base (01) and a steel pipe (02), wherein a fixed pipe (1) is arranged on the base (01), and the fixed pipe (1) is sleeved on the outside of the steel pipe (02); a rotating pipe (2) is rotatably arranged inside the fixed pipe (1), and a clamping assembly (3) for tightening the steel pipe (02) is arranged inside the rotating pipe (2); a rodless cylinder (51) is arranged on the base (01) along the length direction of the base (01), and a second cylinder (52) is arranged on the slider of the rodless cylinder (51) along the vertical direction; a welding head (5) is connected to the end of the piston rod of the second cylinder (52), and the head of the welding head (5) faces the steel pipe (02); a push plate (6) is arranged at one end of the steel pipe (02) to contact the steel pipe (02), and a pushing assembly (7) for driving the push plate (6) to move axially along the steel pipe (02) is arranged on the base (01).

2. A stainless steel pipe processing equipment according to claim 1, characterized in that: The clamping assembly (3) comprises a fixed rod (31) and a telescopic rod (33), wherein the fixed rod (31) and the telescopic rod (33) are both arranged on the inner wall of the rotating tube (2); the ends of the telescopic rod (33) and the fixed rod (31) away from the rotating tube (2) are both connected with an arc plate (32), and the arc plate (32) contacts the steel tube (02).

3. A stainless steel pipe processing equipment according to claim 2, characterized in that: The push plate (6) is provided with an induction ring (61), and the induction ring (61) is electrically connected to the telescopic rod (33); when the steel pipe (02) contacts the induction ring (61), the induction ring (61) controls the telescopic rod (33) to retract through a control system.

4. The stainless steel pipe processing equipment according to claim 2, characterized in that: A rubber pad (321) is provided on a surface of the arc plate (32) close to the steel pipe (02).

5. The stainless steel pipe processing equipment according to claim 1, characterized in that: A driving assembly (4) for driving the rotating tube (2) to rotate is provided below the rotating tube (2); the driving assembly (4) comprises an annular rack (41) provided on the outer wall of the rotating tube; a first motor (43) is provided on the base (01); and an output shaft of the first motor (43) is coaxially connected to a driving gear (42); the driving gear (42) and the annular rack (41) are meshed with each other.

6. The stainless steel pipe processing equipment according to claim 1, characterized in that: Rollers (11) evenly distributed along the circumference of the fixed tube (1) are rotatably connected between the fixed tube (1) and the rotating tube (2).

7. The stainless steel pipe processing equipment according to claim 6, characterized in that: A plurality of convex rings (111) are provided on the roller (11) along the length direction of the roller (11); a first limiting ring groove (13) corresponding one-to-one to the convex ring (111) is provided on the inner wall of the fixed tube (1); a second limiting ring groove (21) corresponding one-to-one to the convex ring (111) is provided on the inner wall of the rotating tube (2); the first limiting ring groove (13) is slidably matched with the convex ring (111), and the second limiting ring groove (21) is slidably matched with the convex ring (111).

8. The stainless steel pipe processing equipment according to claim 1, characterized in that: The pushing assembly (7) includes a bar-shaped rack (71) and a guide bar (74); the bar-shaped rack (71) and the guide bar (74) are both arranged along the length direction of the base (01), and the guide bar (74) passes through the push plate (6) and slides with the push plate (6); the side of the push plate (6) away from the guide bar (74) is rotatably connected to a driven gear (72), and the driven gear (72) is meshed with the bar-shaped rack (71); one end of the driven gear (72) is coaxially connected to a second motor (73).

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