Straightening device for stainless steel pipe machining

Abstract

The utility model discloses a straightening device for processing a stainless steel pipe, which belongs to the technical field of steel pipe straightening devices and comprises a base, a sliding bottom plate, two pipe end restraining pieces, an anti-deviation mechanism, a steel pipe straightening mechanism, a steel pipe straightening mechanism, a steel pipe straightening mechanism, a steel pipe straightening mechanism, a steel pipe straightening mechanism, a steel pipe straightening mechanism and a steel pipe straightening mechanism, the deflection limiting device is used for limiting deflection of the pipe fitting, and the straightening pressing frame is used for applying straightening pressure to the pipe fitting. According to the technical key points, the two ends of a pipe fitting are restrained through pipe end restraining pieces, the pipe fitting is installed in a straightening area, then a threaded rod is driven by a hand wheel to rotate, limiting frames on the two sides are both attached to the side face of the pipe fitting, and it is guaranteed that when a straightening pressing frame works to apply pressure to the pipe fitting, the pipe fitting cannot deviate and turn over towards the two sides; and the straightening pressing frame can efficiently extrude the bent position of the pipe fitting to deform so as to restore the straight line state.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe straightening devices, in particular to a straightening device for processing stainless steel pipes. Background Art

[0002] Pipe straightening is the process of correcting a bent steel pipe and restoring it to a straight line. This process is crucial in the production, processing, and use of steel pipes, as bending can affect their proper operation and performance. Pipe straightening utilizes mechanical or hydraulic forces to straighten the pipe. Specifically, when a steel pipe is bent, applying a certain external force (mechanical or hydraulic) rearranges its internal molecular structure, gradually restoring the pipe to a straight line and achieving the straightening effect.

[0003] However, in actual operation, since pipes are usually round and have smooth surfaces, and the pressure is usually applied at the highest point of the convex surface of the pipe, it is very easy for the pipe to shift and flip during the pressurized straightening process, which will interfere with the normal straightening work. If the pressure is not stopped in time, the bending amplitude of the pipe will even increase. Therefore, to address the above problems, a straightening device for stainless steel pipe processing is proposed. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a straightening device for stainless steel pipe processing, which constrains the two ends of the pipe fitting by means of pipe end constraining parts, installs the pipe fitting in the straightening area, and then drives the threaded rod to rotate by a handwheel so that the limit frames on both sides are in contact with the sides of the pipe fitting, ensuring that when the straightening press frame applies pressure to the pipe fitting, the pipe fitting cannot deviate and flip to both sides, so that the straightening press frame can efficiently squeeze the bending position of the pipe fitting to deform and then restore it to a straight state, solving the technical problem in the prior art that the pipe fitting is prone to deviation and flipping during the pressurized straightening process, thereby interfering with the normal progress of the straightening work, and even increasing the bending amplitude of the pipe fitting if the pressure is not stopped in time.

[0005] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0006] A straightening device for processing stainless steel pipes includes a base on which a sliding base plate is slidably arranged, two pipe end restraints, one of which is fixedly mounted on the front end of the sliding base plate, and the other is slidably mounted on the rear end of the sliding base plate, an anti-deviation mechanism, which is mounted in the middle of the base to limit the deflection of the pipe fitting, and a straightening pressure frame, which is used to apply straightening pressure to the pipe fitting, wherein the anti-deviation mechanism includes a mounting plate and a limit frame, the two being movably connected by a guide rod, a threaded rod being threadedly connected to the middle of the mounting plate, the front end of the threaded rod being rotatably connected to the limit frame, and the rear end of the threaded rod being fixedly connected to a handwheel.

[0007] With the above structural form, the two ends of the pipe fitting are constrained by the pipe end constraint members, and the pipe fitting is installed in the straightening area. Subsequently, the screw rod is rotated by the hand wheel, so that the limiting frames on both sides are attached to the side surface of the pipe fitting, ensuring that when the straightening press frame works to apply pressure to the pipe fitting, the pipe fitting cannot shift or flip to both sides, enabling the straightening press frame to efficiently extrude the bent position of the pipe fitting to deform and then return to a straight state. In addition, since the base is slidably connected to the sliding bottom plate, and one of the pipe end constraint members is slidably connected to the sliding bottom plate, the relative position can be adjusted by sliding, ensuring that the straightening positions of pipe fittings with different lengths and different bending positions can be exactly located directly below the straightening press frame, thereby ensuring the straightening effect.

[0008] In a possible implementation manner, the limiting frame is a three-section folded plate structure, and reinforcing plates are welded at the bending positions thereof.

[0009] With the above structural form, it can be ensured that the limiting frame plays a role in supporting and constraining the side surfaces of pipe fittings with different sizes without interfering with the normal sliding of the sliding bottom plate.

[0010] In a possible implementation manner, the pipe end constraint member includes a hinge seat, a rotating cylinder is rotatably installed in the hinge seat, a constraint head is threadedly connected to the front end of the rotating cylinder, and a fixed sleeve is fixedly arranged on the front end surface of the constraint head.

[0011] With the above structural form, the constraint of the end of the pipe fitting can be completed with the fixed sleeve. Since the rotating cylinder can rotate freely, the constraint head can play a role in constraining the ends of pipe fittings with different sizes and bending amplitudes at different initial angles.

[0012] In a possible implementation manner, the fixed sleeve is composed of two ring structures, and an annular slot is formed between the two ring structures.

[0013] With the above structural form, the constraint of the end of the pipe fitting can be completed with the formed annular slot, and this connection method is simple, efficient and easy to operate.

[0014] In a possible implementation manner, a second guide groove is formed on the upper end surface at the rear side of the sliding bottom plate, and a second guide bar is fixedly arranged at the bottom of the hinge seat of the pipe end constraint member located at the rear side. The second guide bar is slidably arranged in the second guide groove. Among them, the cross-sectional forms of the second guide groove and the second guide bar are both L-shaped.

[0015] With the above structural form, the sliding connection between the sliding bottom plate and the pipe end constraint member can be realized by the structural form that the second guide bar is slidably arranged in the second guide groove, and the L-shaped structural form can play a clamping role, so that the pipe end constraint member can only slide closely along with the sliding bottom plate during work and cannot be separated from each other.

[0016] In a possible implementation, the straightening press frame includes a vertical support plate, on the top of which a cross beam is fixedly installed. A hydraulic cylinder is installed on the cross beam, and the end of the output shaft of the hydraulic cylinder is fixedly connected with a downward pressing contact head, and a curved groove arranged in the middle is opened on the lower end surface of the downward pressing contact head.

[0017] With the above structural form, during straightening, the hydraulic cylinder works to drive the downward pressing contact head to move downward to apply pressure to the bent part of the pipe fitting, pressing it to be bent and straightened. In addition, the provided curved groove can enable a certain clamping effect between the downward pressing contact head and the pipe fitting, ensuring that the downward pressing contact head does not slip off the pipe fitting.

[0018] In a possible implementation, a first guide groove is opened on the upper end surface of the base, and a first guide bar is fixedly arranged on the lower end surface of the sliding bottom plate. Among them, the first guide bar is slidably arranged in the first guide groove.

[0019] With the above structural form, the sliding connection between the sliding bottom plate and the base can be realized in the form that the first guide bar is slidably arranged in the first guide groove.

[0020] In a possible implementation, a matching hole is opened at the bottom of the vertical support plate, and the threaded rod passes through the matching hole.

[0021] With the above structural form, the situation where the threaded rod cannot work properly due to the setting of the vertical support plate can be effectively avoided.

[0022] In summary, the present utility model has the following beneficial technical effects:

[0023] The two ends of the pipe fitting are constrained by the pipe end constraint members, and the pipe fitting is installed in the straightening area. Subsequently, the threaded rod is driven to rotate by the hand wheel, so that the two side limiting frames are both attached to the side surface of the pipe fitting, ensuring that when the straightening press frame works to apply pressure to the pipe fitting, the pipe fitting cannot shift and turn to both sides, enabling the straightening press frame to efficiently extrude the bent position of the pipe fitting to deform and then return to a straight state;

[0024] In addition, since the base is slidably connected with the sliding bottom plate, and one of the pipe end constraint members is slidably connected with the sliding bottom plate, the relative position can be adjusted by sliding, ensuring that the straightening positions of pipe fittings with different lengths and different bending positions can be exactly located directly below the straightening press frame, thereby ensuring the straightening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0026] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0027] Figure 2 Schematic structural diagram of the anti-offset mechanism of the present utility model;

[0028] Figure 3 Schematic structural diagram of the pipe end restraint of the present utility model;

[0029] Figure 4 Schematic structural diagram of the straightening press frame of the present utility model.

[0030] In the figure: 1. Base; 11. First guide groove; 2. Sliding bottom plate; 21. Second guide groove; 201. First guide bar; 3. Pipe end restraint; 31. Hinge seat; 32. Rotating cylinder; 33. Restraint head; 34. Fixed sleeve; 35. Second guide bar; 4. Anti-offset mechanism; 41. Mounting plate; 42. Limiting frame; 43. Guide rod; 44. Threaded rod; 45. Handwheel; 46. Reinforcing plate; 5. Straightening press frame; 51. Vertical support plate; 52. Cross beam; 53. Hydraulic cylinder; 54. Lower pressing contact; 55. Curved groove; 56. Matching hole. Detailed implementation manners

[0031] The technical solutions in the embodiments of the present application are to solve the problems in the above-mentioned background technology, and the general idea is as follows:

[0032] As Figure 1 - Figure 2 shown, a straightening device for processing stainless steel pipes provided in this embodiment includes a base 1, on which a sliding bottom plate 2 is slidably arranged, two pipe end restraints 3, one of which is fixedly installed at the front end of the sliding bottom plate 2, and the other is slidably installed at the rear end of the sliding bottom plate 2, and an anti-offset mechanism 4, which is installed in the middle of the base 1 to limit the deflection of the pipe fitting, and a straightening press frame 5, which is used to apply straightening pressure to the pipe fitting. Among them, the anti-offset mechanism 4 includes a mounting plate 41 and a limiting frame 42, and the two are movably connected through a guide rod 43. A threaded rod 44 is threadedly connected to the middle of the mounting plate 41. The front end of the threaded rod 44 is rotatably connected to the limiting frame 42, and the rear end of the threaded rod 44 is fixedly connected to a handwheel 45. Through the above structural form, the two ends of the pipe fitting are restrained by the pipe end restraint 3, and the pipe fitting is installed in the straightening area. Subsequently, the handwheel 45 is used to drive the threaded rod 44 to rotate, so that the limiting frames 42 on both sides are attached to the side of the pipe fitting, ensuring that when the straightening press frame 5 works to apply pressure to the pipe fitting, the pipe fitting cannot deflect and flip to both sides, enabling the straightening press frame 5 to efficiently squeeze the bent position of the pipe fitting to deform and then return to a straight state.

[0033] In addition, since the base 1 is slidably connected to the sliding bottom plate 2, and one of the pipe end restraints 3 is slidably connected to the sliding bottom plate 2, the relative position can be adjusted by sliding, ensuring that the straightening position of pipe fittings with different lengths and different bending positions can be exactly located directly below the straightening press frame 5, thereby ensuring the straightening effect.

[0034] As Figure 2 shown, the limit frame 42 is a three-section folded plate structure, and reinforcing plates 46 are welded at the bending positions. With the above structural form, it can ensure that the limit frame 42 supports and restrains the sides of pipe fittings with different sizes without interfering with the normal sliding of the sliding bottom plate 2.

[0035] As Figure 3 shown, the pipe end restraint 3 includes a hinge seat 31. A rotating cylinder 32 is rotatably installed in the hinge seat 31. A restraint head 33 is threadedly connected to the front end of the rotating cylinder 32. A fixed sleeve 34 is fixedly arranged on the front end face of the restraint head 33. With the above structural form, the restraint of the pipe fitting end can be completed with the fixed sleeve 34. Since the rotating cylinder 32 can rotate freely, the restraint head 33 can restrain the pipe fitting ends with different sizes and bending amplitudes at different initial angles.

[0036] Among them, the fixed sleeve 34 is composed of two ring structures. An annular slot is formed between the two rings. With the above structural form, the restraint of the pipe fitting end can be completed with the formed annular slot, and this connection method is simple, efficient and easy to operate.

[0037] As Figure 3 shown, a second guide groove 21 is opened on the upper end face at the rear side of the sliding bottom plate 2. A second guide bar 35 is fixedly arranged at the bottom of the hinge seat 31 of the pipe end restraint 3 located at the rear side. The second guide bar 35 is slidably arranged in the second guide groove 21. Among them, the cross-sectional forms of the second guide groove 21 and the second guide bar 35 are both L-shaped. With the above structural form, the sliding connection between the sliding bottom plate 2 and the pipe end restraint 3 can be realized in the form that the second guide bar 35 is slidably arranged in the second guide groove 21, and the L-shaped structural form can play a clamping role, so that the pipe end restraint 3 can only slide closely against the sliding bottom plate 2 during work and cannot be separated from each other.

[0038] As Figure 4 shown, the straightening press frame 5 includes a vertical support plate 51. A cross beam 52 is fixedly installed on its top. A hydraulic cylinder 53 is installed on the cross beam 52. The end of the output shaft of the hydraulic cylinder 53 is fixedly connected with a downward pressing contact 54. A curved groove 55 is arranged in the center on the lower end face of the downward pressing contact 54. With the above structural form, during straightening, the hydraulic cylinder 53 works to drive the downward pressing contact 54 to move downward to apply pressure to the bent part of the pipe fitting and press it to be straight. In addition, the arranged curved groove 55 can make there be a certain clamping effect between the downward pressing contact 54 and the pipe fitting to ensure that the downward pressing contact 54 will not slip off from the pipe fitting.

[0039] Among them, a matching hole 56 is opened at the bottom of the vertical support plate 51. The threaded rod 44 passes through the matching hole 56. With the above structural form, the situation that the threaded rod 44 cannot work normally due to the setting of the vertical support plate 51 can be effectively avoided.

[0040] As Figure 2 shown, a first guide groove 11 is formed on the upper end surface of the base 1, and a first guide bar 201 is fixedly arranged on the lower end surface of the sliding base plate 2. Among them, the first guide bar 201 is slidably arranged in the first guide groove 11. Through the above structural form, the sliding connection between the sliding base plate 2 and the base 1 can be realized in the form that the first guide bar 201 is slidably arranged in the first guide groove 11.

[0041] The working principle and process of the present utility model are as follows:

[0042] The two ends of the pipe fitting are constrained by the pipe end constraint member 3, and the pipe fitting is installed in the straightening area. Subsequently, the hand wheel 45 is rotated to drive the threaded rod 44 to rotate, so that the limiting frames 42 on both sides are attached to the side surface of the pipe fitting, ensuring that the pipe fitting cannot shift or flip to both sides when the straightening press frame 5 works to apply pressure to the pipe fitting, so that the straightening press frame 5 can efficiently extrude the bent position of the pipe fitting to deform and then return to a straight state.

[0043] The straightening process is as follows: the hydraulic cylinder 53 works to drive the downward pressing contact head 54 to move downward to apply pressure to the bent part of the pipe fitting to press it into a straight shape. In addition, the arranged curved groove 55 can enable a certain clamping effect between the downward pressing contact head 54 and the pipe fitting, ensuring that the downward pressing contact head 54 does not slip off the pipe fitting. [[ID=1�]]

[0044] In addition, since the base 1 is slidably connected to the sliding base plate 2, and one of the pipe end constraint members 3 is slidably connected to the sliding base plate 2, the relative position can be adjusted by sliding, ensuring that the straightening parts of pipe fittings with different lengths and different bending positions can be exactly located directly below the straightening press frame 5, thereby ensuring the straightening effect.

[0045] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present utility model, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present utility model.

Claims

1. A straightening device for processing stainless steel pipes, characterized in that, Comprising: A base (1) on which a sliding bottom plate (2) is slidably arranged; Two pipe end restraint members (3), one of which is fixedly installed at the front end of the sliding bottom plate (2), and the other is slidably installed at the rear end of the sliding bottom plate (2); An anti-offset mechanism (4) which is installed in the middle of the base (1) for restricting the deflection of the pipe fitting; A straightening press frame (5) which is used to apply a straightening pressure to the pipe fitting; Among them, the anti-offset mechanism (4) includes a mounting plate (41) and a limiting frame (42), and the above two are movably connected by a guide rod (43). A threaded rod (44) is threadedly connected to the middle of the mounting plate (41). The front end of the threaded rod (44) is rotatably connected to the limiting frame (42), and the rear end of the threaded rod (44) is fixedly connected to a hand wheel (45).

2. The straightening device for processing stainless steel pipes according to claim 1, characterized in that: The limiting frame (42) is of a three-section folded plate structure, and reinforcing plates (46) are welded at its bending parts.

3. The straightening device for processing stainless steel pipes according to claim 1, characterized in that: The pipe end restraint member (3) includes a hinge seat (31), a rotating cylinder (32) is rotatably installed in the hinge seat (31), a restraint head (33) is threadedly connected to the front end of the rotating cylinder (32), and a fixed sleeve (34) is fixedly arranged on the front end face of the restraint head (33).

4. The straightening device for stainless steel pipe processing according to claim 3, characterized in that: The fixed sleeve (34) is composed of two ring structures, and an annular slot is formed by enclosing between the two ring structures.

5. The straightening device for processing stainless steel pipes according to claim 3, characterized in that:

6. The straightening device for processing stainless steel pipes according to claim 1, characterized in that: A second guide groove (21) is formed on the upper end face at the rear side of the sliding bottom plate (2), and a second guide bar (35) is fixedly arranged at the bottom of the hinge seat (31) of the pipe end restraint member (3) located at the rear side. The second guide bar (35) is slidably arranged in the second guide groove (21). Among them, the cross-sectional forms of the second guide groove (21) and the second guide bar (35) are both L-shaped.

7. The straightening device for processing stainless steel pipes according to claim 1, characterized in that: The straightening press frame (5) includes a vertical support plate (51), a cross beam (52) is fixedly installed on the top of the vertical support plate (51), a hydraulic cylinder (53) is installed on the cross beam (52), the end of the output shaft of the hydraulic cylinder (53) is fixedly connected to a downward pressing contact head (54), and a curved groove (55) is arranged in the middle on the lower end face of the downward pressing contact head (54).

8. The straightening device for stainless steel pipe processing according to claim 6, characterized in that: A first guide groove (11) is formed on the upper end face of the base (1), and a first guide bar (201) is fixedly arranged on the lower end face of the sliding bottom plate (2). Among them, the first guide bar (201) is slidably arranged in the first guide groove (11). A matching hole (56) is formed at the bottom of the vertical support plate (51), and the threaded rod (44) passes through the matching hole (56).

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