Stainless steel pipe rounding and shaping device

Abstract

The invention discloses a stainless steel pipe rounding and shaping device, and relates to the technical field of stainless steel production, the stainless steel pipe rounding and shaping device comprises a bottom plate and a transmission case fixed in the middle of the bottom plate, a bearing transverse shaft horizontally penetrates through and is fixed in the transmission case, and two ends of the bearing transverse shaft are provided with inner support fixing assemblies for supporting the pipe orifice part of a stainless steel pipe from the inside; sleeve shafts are symmetrically arranged on the connecting portion of the bearing transverse shaft and the transmission box, rotate relative to the bearing transverse shaft and are driven by a transmission assembly. Each sleeve shaft is provided with a shaping assembly used for shaping a pipe opening of the stainless steel pipeline. The inner wall and the outer wall of the pipe orifice of the pipeline are synchronously pressed by adopting the double shaping rollers, so that radial force balance is formed, and the rounding precision and efficiency are ensured; and meanwhile, the inner supporting fixing assembly and the shaping assembly are adopted to be matched with the pipe diameter and the pipe wall thickness of the stainless steel pipe, the adaptability of the device is improved, and cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of stainless steel production technology, specifically to a device for rounding and shaping stainless steel tubes. Background Technology

[0002] During the cutting and processing of stainless steel pipes, the pipe ends often become out of round due to mechanical stress or thermal deformation, which seriously affects the accuracy of subsequent welding or assembly. Therefore, stainless steel pipes generally need to be reshaped after cutting. Existing shaping methods include manual hammering and mechanical pressing. However, relying solely on internal or external pressure for correction makes it difficult to simultaneously control radial pressure, easily leading to uneven deformation of the stainless steel pipe wall. Furthermore, these methods are inefficient, requiring a certain amount of time to overcome metal deformation stress. On the other hand, existing methods require mold replacement and repeated adjustments for different pipe diameters, resulting in very low shaping efficiency. Therefore, we provide a stainless steel pipe rounding and shaping device. Summary of the Invention

[0003] The purpose of this invention is to provide a stainless steel tube rounding and shaping device to solve the above-mentioned problems.

[0004] The present invention can be achieved by the following technical solution: a stainless steel pipe rounding and shaping device, including a base plate and a transmission box fixed in the middle, a bearing horizontal shaft is horizontally fixed inside the transmission box, and the two ends of the bearing horizontal shaft are provided with internal support fixing components for supporting the pipe opening of the stainless steel pipe from the inside. The connection between the load-bearing horizontal shaft and the transmission box is symmetrically provided with sleeve shafts, which rotate relative to the load-bearing horizontal shaft and are driven by a transmission assembly; each of the sleeve shafts is equipped with a shaping assembly for shaping the stainless steel pipe end; The internal support fixing assembly includes a sleeve fixedly fitted to the end of the bearing horizontal shaft, a sleeve seat fixed on the outside of the sleeve, and multiple internal support arc plates coaxially and evenly distributed on the outer circumference of the sleeve, with a rubber layer attached to their outer side. The distance between the multiple internal support arc plates and the sleeve is adjustable.

[0005] A further technical improvement of the present invention is that: each sleeve is hinged to the inner support arc plate with a first hinge rod, a hollow oil cylinder is symmetrically installed in the middle of the sleeve, an adjusting ring is fixed at the output end of the hollow oil cylinder and slidably disposed on the outside of the sleeve, and a second hinge rod is hinged to the middle of the adjusting ring and the first hinge rod.

[0006] A further technical improvement of the present invention is that a spring and a pressure sensor are provided between the adjusting ring and the hollow oil cylinder, with the two ends of the spring abutting against the adjusting ring and the pressure sensor respectively, and the pressure sensor being installed on one side of the hollow oil cylinder.

[0007] A further technical improvement of the present invention is that: the transmission assembly includes a worm gear coaxially fixed on the sleeve shaft, a worm gear vertically rotating in the transmission box meshing with one side of the worm gear, a driven gear coaxially fixed at the bottom of the worm gear, and a driving gear driven by a motor and a reducer between the two driven gears.

[0008] A further technical improvement of the present invention is that: the shaping component includes a fixed sleeve fixed to the outer side of one end of the sleeve shaft, a mounting plate fixed on the fixed sleeve, a lifting block slidably disposed in the groove of the mounting plate, two supports horizontally passing through the lifting block, the lower support being fixed to the lifting block, and the upper support slidingly engaging with the lifting block up and down, and shaping rollers being rotatably mounted at the ends of both supports.

[0009] A further technical improvement of the present invention is that: a lifting motor is fixed below the mounting plate, a rotating sleeve is rotatably arranged in the middle of the mounting plate, the lifting motor drives the rotating sleeve to rotate, a lifting shaft is threadedly connected inside the rotating sleeve, and the top of the lifting shaft is rotatably connected to the lifting block.

[0010] A further technical improvement of the present invention is that: a screw rod is provided inside the lifting block and passes through the upper support. The top of the screw rod passes through the lifting block and an adjustment knob is fixed at the end. A locking screw is provided on the corresponding side wall of the lifting block to limit the screw rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention uses two shaping rollers to simultaneously apply pressure to the inner and outer walls of the pipe opening, forming a radial force balance and eliminating the problem of low roundness accuracy and deformation caused by unidirectional stress. Moreover, this method does not require static holding. After the shaping rollers rotate around the pipe opening several times, a high-precision circular pipe opening can be obtained. It is efficient and does not damage the processed surface.

[0012] 2. This invention uses an internal support fixing component to support and fix the inner wall of the stainless steel pipe, which can quickly adapt to stainless steel pipes of different diameters. At the same time, by rotating the adjustment knob to drive the screw, the distance between the two supports can be adjusted, thereby adjusting the distance between the two shaping rollers to match the wall thickness of different stainless steel pipes, which greatly improves adaptability and reduces costs.

[0013] 3. This invention uses a spring and a pressure sensor to control the pressure of the inner support arc plate on the inner wall of the stainless steel tube, thereby ensuring that the stainless steel tube will not be crushed while being pressed, thus protecting the quality of the product itself. Attached Figure Description

[0014] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A magnified view of a section at point A in the middle; Figure 3 For the present invention Figure 1 A magnified view of a section at point B in the middle; Figure 4 This is a schematic diagram of the connection of the shaping component structure of the present invention; Figure 5 This is a schematic diagram of the engagement state between the spiral sleeve and the lifting shaft of the present invention.

[0016] In the diagram: 1. Base plate; 2. Support frame; 3. Transmission box; 4. Bearing horizontal shaft; 5. Sleeve shaft; 6. Worm gear; 7. Worm; 8. Driving gear; 9. Driven gear; 10. Sleeve; 11. Sleeve seat; 12. Inner support arc plate; 13. Rubber layer; 14. First hinge rod; 15. Hollow cylinder; 16. Adjusting ring; 17. Second hinge rod; 18. Spring; 19. Fixed sleeve seat; 20. Mounting plate; 21. Lifting block; 22. Bracket; 23. Shaping roller; 24. Lifting motor; 25. Rotating sleeve; 26. Lifting shaft; 27. Adjusting knob; 28. Locking screw. Detailed Implementation

[0017] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0018] Please see Figure 1-5 As shown, a stainless steel pipe rounding and shaping device includes a base plate 1, a support frame 2 with adjustable height symmetrically slidably arranged on the top of the base plate 1, a transmission box 3 fixed at the middle position of the top of the base plate 1, and a load-bearing horizontal shaft 4 horizontally fixed inside the transmission box 3. Two sleeve shafts 5 are rotatably provided on the outer side of the connection section between the bearing horizontal shaft 4 and the transmission box 3. Each sleeve shaft 5 is connected to the side wall of the transmission box 3 by a bearing. An internal support fixing component is provided near both ends of the bearing horizontal shaft 4 to support the stainless steel pipe opening from the inside. Each shaft 5 has a worm gear 6 coaxially fixed at one end inside the transmission box 3. A worm 7 is provided on one side of the worm gear 6. The worm 7 is vertically rotatably installed inside the transmission box 3. A driven gear 9 is coaxially fixed at the bottom of the worm 7. A driving gear 8 is rotatably installed between the two driven gears 9 and the transmission box 3. The driving gear 8 meshes with the two driven gears 9 for transmission. A shaping component is coaxially fixed at one end of each shaft 5 outside the transmission box 3. A drive motor and a reducer are provided at the bottom of the transmission box 3. The output end of the reducer is fixedly connected to the driving gear 8.

[0019] Specifically, each inner support fixing component includes a sleeve 10 fixedly sleeved at the end of the bearing horizontal shaft 4, a sleeve seat 11 symmetrically fixed on the outer side of the sleeve 10, and a plurality of inner support arc plates 12 coaxially and evenly arranged on the outer periphery of the sleeve 10. A rubber layer 13 is attached to the outer side of each inner support arc plate 12. A first hinge rod 14 is symmetrically hinged to the inner side wall of each inner support arc plate 12, and the other end of the first hinge rod 14 is hinged to the sleeve seat 11 at the corresponding position. Hollow cylinders 15 are symmetrically installed in the middle part of the sleeve 10. Each hollow cylinder 15 has an adjusting ring 16 fixed at its output end and slidably connected to the sleeve 10. A second hinge rod 17 is provided between the adjusting ring 16 and each first hinge rod 14. One end of the second hinge rod 17 is hinged to the adjusting ring 16, and the other end is hinged to the middle part of the first hinge rod 14. Furthermore, a spring 18 is provided between the adjusting ring 16 and the hollow cylinder 15, and a pressure sensor is installed on one side of the hollow cylinder 15. The two ends of the spring 18 abut against the adjusting ring 16 and the pressure sensor, respectively.

[0020] Specifically, the shaping component includes a fixed sleeve 19 sleeved and fixed on the sleeve shaft 5. An installation plate 20 is fixedly installed on the outer side wall of the fixed sleeve 19. A sliding groove is opened on the upper middle side wall of the installation plate 20. A lifting block 21 is slidably installed in the sliding groove. Two supports 22 are arranged in parallel at different heights in the middle of the lifting block 21. The lower support 22 is fixedly connected to the lifting block 21, and the upper support 22 is slidably connected to the lifting block 21 in a vertically relative manner. A screw is vertically and rotatably installed inside the lifting block 21. The screw passes through the bracket 22 above. An adjustment knob 27 for adjusting the screw is provided on the top of the lifting block 21. A locking screw 28 for limiting and fixing the screw is provided on one side of the lifting block 21. A shaping roller 23 is rotatably installed on the side of the two brackets 22 away from the transmission box 3. More specifically, a lifting motor 24 is fixedly installed at the lower position of the mounting plate 20, and a rotating sleeve 25 is provided at the upper position of the mounting plate 20, which is rotatably connected to the mounting plate 20. The bottom of the rotating sleeve 25 is fixedly connected to the output end of the lifting motor 24 by a key. A lifting shaft 26 is internally threaded to the rotating sleeve 25, and the top of the lifting shaft 26 is rotatably connected to the bottom of the lifting block 21.

[0021] When using this invention, one end of the cut stainless steel pipe is placed on the support frame 2, and the height of the support frame 2 is adjusted so that the central axis of the stainless steel pipe coincides with the central axis of the bearing horizontal axis 4. The hollow hydraulic cylinder 15 drives the adjusting ring 16 to move and retract, thereby reducing the radius of the multiple inner support arc plates 12 under the action of the second hinge rod 17 and the first hinge rod 14, and moving the pipe toward the transmission box 3 until it completely covers the inner support fixing assembly. The lifting motor 24 is started, which drives the rotating sleeve 25 to rotate, thereby causing the lifting shaft 26 to move up and down, which in turn drives the lifting block 21 to move up and down, so that the stainless steel pipe wall can enter between the two shaping rollers 23; then the adjusting ring 16 is driven to move and extend, thereby increasing the radius of the multiple inner support arc plates 12 until the inner support arc plates 12 are in contact with the inner wall of the pipe; when the spring 18 squeezes the pressure sensor to a certain value, the adjusting ring 16 is positioned at that position to prevent excessive pressure from damaging the pipe or equipment; At the same time, the distance between the two shaping rollers 23 is adjusted by rotating the adjustment knob 27 to match the thickness of the stainless steel pipe, and the distance is determined by tightening the locking screw 28. Next, the motor connected to the reducer is started, which drives the sleeve shaft 5 to rotate under the transmission of gears and worm gear 6 and worm 7, thereby rotating the mounting plate 20. This causes the two shaping rollers 23 to shape the stainless steel pipe end that has been deformed due to cutting. It should be noted that the distance between two close points of the two shaping rollers 23 relative to the central axis of the bearing horizontal shaft 4 is consistent with the inner and outer radii of the stainless steel pipe. As the two shaping rollers 23 on the mounting plate 20 roll, the pipe deformation gradually returns to its original shape. After shaping is completed, the rotation of the sleeve shaft 5 is stopped, and the adjusting ring 16 is retracted, so that the inner support fixing assembly is released from fixing the stainless steel pipe, thereby widening the distance between the two shaping rollers 23 and completing the unloading.

[0022] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A stainless steel tube rounding and shaping device, comprising a base plate (1) and a transmission box (3) fixed in the middle thereof, characterized in that, The transmission box (3) has a horizontally fixed bearing shaft (4) that runs through it. Both ends of the bearing shaft (4) are provided with internal support fixing components for supporting the stainless steel pipe opening from the inside. The connection between the bearing horizontal shaft (4) and the transmission box (3) is symmetrically provided with sleeve shafts (5), which rotate relative to the bearing horizontal shaft (4) and are driven by the transmission assembly; each sleeve shaft (5) is equipped with a shaping assembly for shaping the stainless steel pipe end; The inner support fixing assembly includes a sleeve (10) fixedly sleeved on the end of the bearing horizontal shaft (4), a sleeve seat (11) fixed on the outside of the sleeve (10), and multiple inner support arc plates (12) evenly distributed coaxially on the outer periphery of the sleeve (10), with a rubber layer (13) attached to the outside of the arc plates (12) and the distance between the multiple inner support arc plates (12) and the sleeve (10) is adjustable.

2. The stainless steel tube rounding and shaping device according to claim 1, characterized in that, Each of the sleeves (11) is hinged to the inner support arc plate (12) with a first hinge rod (14). Hollow cylinders (15) are symmetrically installed in the middle of the sleeve (10). An adjusting ring (16) is fixed at the output end of the hollow cylinder (15) and is slidably disposed on the outside of the sleeve (10). A second hinge rod (17) is hinged to the middle of the adjusting ring (16) and the first hinge rod (14).

3. The stainless steel tube rounding and shaping device according to claim 2, characterized in that, A spring (18) and a pressure sensor are provided between the adjusting ring (16) and the hollow cylinder (15). The two ends of the spring (18) abut against the adjusting ring (16) and the pressure sensor respectively. The pressure sensor is installed on one side of the hollow cylinder (15).

4. The stainless steel tube rounding and shaping device according to claim 1, characterized in that, The transmission assembly includes a worm gear (6) coaxially fixed on the sleeve shaft (5), a worm (7) vertically rotating in the transmission box (3) meshing with one side of the worm gear (6), a driven gear (9) coaxially fixed at the bottom of the worm (7), and a driving gear (8) driven by a motor and a reducer between the two driven gears (9).

5. The stainless steel tube rounding and shaping device according to claim 1, characterized in that, The shaping assembly includes a fixed sleeve (19) fixed to the outer side of one end of the sleeve shaft (5), a mounting plate (20) fixed on the fixed sleeve (19), a lifting block (21) slidably disposed in the groove of the mounting plate (20), two supports (22) horizontally passing through the lifting block (21), the lower support (22) being fixed to the lifting block (21), and the upper support (22) being slidably engaged with the lifting block (21) up and down, and shaping rollers (23) being rotatably mounted at the ends of the two supports (22).

6. The stainless steel tube rounding and shaping device according to claim 5, characterized in that, A lifting motor (24) is fixed below the mounting plate (20). A rotating sleeve (25) is rotatably arranged in the middle of the mounting plate (20). The lifting motor (24) drives the rotating sleeve (25) to rotate. A lifting shaft (26) is threadedly connected to the rotating sleeve (25). The top of the lifting shaft (26) is rotatably connected to the lifting block (21).

7. The stainless steel tube rounding and shaping device according to claim 5, characterized in that, The lifting block (21) is provided with a screw rod that passes through the upper bracket (22). The top of the screw rod passes through the lifting block (21), and an adjustment knob (27) is fixed at the end. The lifting block (21) is provided with a locking screw (28) on the corresponding side wall for limiting the screw rod.

Images