A straightening device and its application method for heat-treated pipe fittings of unequal diameter

Abstract

This invention provides a straightening device and method for heat-treated pipe fittings of unequal diameters, belonging to the field of pipe fitting processing technology. The straightening device includes a support base, which includes a feeding support assembly, a coarse shaft support, a fine shaft support, and a discharging support assembly; a feeding mechanism, which includes a feeding plate, a feeding spring plate, an upper rod rail one, and an upper rod rail two; a discharging mechanism, which includes a discharging plate, a discharging spring plate, a lower rod rail one, and a lower rod rail two; and a hydraulic pressure head, which is disposed above the support base. This invention adopts a continuous feeding and discharging method. The feeding mechanism adjusts the tilt direction of the feeding plate by rotating a motor, guiding the heat-treated pipe fittings of unequal diameters to the straightening position; the discharging mechanism, through the extension and retraction of the discharging cylinder, lifts the heat-treated pipe fittings of unequal diameters by the discharging plate and guides them out of the straightening position along the discharging plate, eliminating the inconvenience of back-and-forth lifting and saving time.

Description

Technical Field

[0001] This invention relates to the field of pipe fitting processing technology, specifically to a straightening device and method for heat-treated pipe fittings of unequal diameters. Background Technology

[0002] Unequal diameter pipe fittings are generally designed as a single piece, consisting of a large-diameter section and a small-diameter section. After heat treatment, they require straightening. Currently, in the straightening of unequal diameter heat-treated pipe fittings, overhead cranes are needed to lift and clamp the fittings during loading and unloading, resulting in long reciprocating trips and reduced production efficiency. Furthermore, the different diameters at both ends of the fittings make lifting inconvenient. Therefore, there is a need to develop a straightening device for unequal diameter heat-treated pipe fittings that eliminates the need for repeated lifting.

[0003] Patent document CN113909338A discloses a rapid straightening device for processing pipe fittings of different diameters, including a base, a through hole, a motor, and a handle. A control panel and a support frame are fixed to the upper surface of the base. An electric telescopic rod passes through the support frame and connects to a support plate. The through hole is located on one side wall of the support frame. A third electric telescopic column is fixed to one inner wall of the support frame, and a bracket is slidably connected to the other inner wall of the support frame. This rapid straightening device for processing pipe fittings of different diameters has several types of top support rods inserted into a groove. After opening the end cover and selecting and removing the corresponding type of top support rod according to the pipe fitting model, the top support rod can be passed through four second clamping plates and secured in a slot. At this time, a convex ring strengthens the connection between the top support rod and the support plate. Subsequently, the first clamping plate can be used to clamp and fix the top support rod. The top support rod can be used to assist in straightening pipe fittings; different types of top support rods are used to straighten pipe fittings of different diameters. However, this straightening device cannot solve the technical problem of the long time required for loading, unloading, and hoisting pipes of unequal diameters. Summary of the Invention

[0004] In view of this, the present invention provides a straightening device and a method for heat-treated pipe fittings of unequal diameter, aiming to solve the technical problem that the hoisting of heat-treated pipe fittings of unequal diameter takes a long time in the prior art.

[0005] To solve the above-mentioned technical problems, on the one hand, the present invention provides a straightening device for heat-treated pipe fittings of unequal diameters, comprising:

[0006] The support base includes a feeding support assembly, a thick shaft support, a thin shaft support, and a discharging support assembly. The thick shaft support is used to support the thick section of the heat-treated pipe with unequal diameters, and the thin shaft support is used to support the thin section of the heat-treated pipe with unequal diameters.

[0007] The feeding mechanism includes a feeding plate disposed on the feeding support assembly, a feeding spring plate disposed on the feeding plate, and upper rod rail one and upper rod rail two disposed on both sides of the feeding plate.

[0008] The feeding mechanism includes a feeding plate disposed on the feeding support assembly, a feeding spring plate disposed on the feeding plate, and a first lower rod rail and a second lower rod rail disposed on both sides of the feeding plate.

[0009] A hydraulic pressure head, positioned above the support base, is used to press down and straighten heat-treated pipes of unequal diameters.

[0010] By adopting the above technical solution, the feeding spring plate and the unfeeding spring plate support the thin sections of the heat-treated pipes with unequal diameters. The heat-treated pipes with unequal diameters fall along the feeding plate, and the coarse shaft support and the fine shaft support support the heat-treated pipes with unequal diameters. After the hydraulic pressure head presses down to straighten them, they are discharged along the unfeeding plate, which reduces the time spent on repeatedly hoisting heat-treated pipes with unequal diameters.

[0011] Specifically, the feeding support assembly includes a feeding support rod one, a feeding support rod two, a motor one mounted on the feeding support rod one, and a connecting rod one mounted on the feeding support rod two. A rotating rod is connected to the output shaft of the motor one. One side of the rotating rod is connected to the feeding plate, and the other side of the rotating rod is connected to the upper rod rail one or the upper rod rail two. The upper rod rail one, the upper rod rail two, and the feeding plate are all provided with a sliding groove one, and the connecting rod one is located in the sliding groove one.

[0012] By adopting the above technical solution, motor one drives the rotating rod to rotate, and the rotating rod drives the feeding plate, upper rail one, and upper rail two to move, thereby adjusting the tilt direction of the feeding plate.

[0013] Specifically, the material feeding support assembly includes a material feeding support rod and a connecting rod two disposed on the material feeding support rod. The first lower rod rail, the second lower rod rail, and the material feeding plate are all provided with a sliding groove two. The connecting rod two is located in the sliding groove two. A connecting rod three is also connected between the first lower rod rail, the second lower rod rail, and the material feeding plate. A material feeding cylinder is provided below the connecting rod three. The cylinder rod of the material feeding cylinder drives the connecting rod three to rise and fall.

[0014] By adopting the above technical solution, the cylinder rod drives the connecting rod three to rise and fall, thereby causing the lower rod rail one, lower rod rail two and the material plate to tilt.

[0015] In addition, a motor, a roller, and a second roller are provided on the lower rod rail at the location of the thick shaft support member. The motor drives the roller to rotate, and a compensation unit is provided on the lower rod rail at the location of the thin shaft support member.

[0016] The compensation unit includes a limiting groove on the lower rail 2, a limiting hole in the limiting groove, a limiting rod in the limiting hole, a spring 1 sleeved on the limiting rod, a top plate at the upper end of the limiting rod, and rollers 3 and 4 on the top plate.

[0017] By adopting the above technical solution, after the unequal diameter heat-treated pipe fittings are loaded onto the feeding plate, rollers one and two support the thicker sections of the fittings, while rollers three and four support the thinner sections. Motor two drives roller one to rotate, which in turn causes the unequal diameter heat-treated pipe fittings, rollers two, three, and four to rotate, allowing for the measurement of the roundness of the fittings. A compensation unit compensates for the support of the thinner sections of the fittings. After roundness measurement, the cylinder rod of the feeding cylinder rises, causing the thicker sections of the fittings to fall onto the thicker shaft support, and the thinner sections onto the thinner shaft support, facilitating straightening, simplifying operation, and effectively improving production efficiency.

[0018] Preferably, the upper rail is provided with a through hole, a pressure rod is provided in the through hole, a spring is sleeved on the pressure rod, and a pressure plate is provided at the end of the pressure rod.

[0019] By setting pressure plates, the thinner sections of the heat-treated pipes with unequal diameters can be compensated and pressed during the straightening process, while the thicker sections are pressed by the upper rod rail.

[0020] Preferably, the feeding plate is provided with a plurality of plate grooves, and the plate grooves are provided with through holes. The feeding spring plate includes a support rod disposed in the through hole and a plate body disposed on the support rod. A spring is sleeved on the support rod.

[0021] The feeding plate is provided with a plurality of plate grooves 2, and the plate grooves 2 are provided with through holes 3. The feeding spring plate includes a support rod 2 disposed in the through hole 3 and a plate body 2 disposed on the support rod 2. A spring 4 is sleeved on the support rod 2.

[0022] By adopting the above technical solution, the feeding spring plate supports the thin sections of heat-treated pipes of unequal diameter during the feeding process, and the unloading spring plate supports the thin sections of heat-treated pipes of unequal diameter during the unloading process.

[0023] Preferably, both the coarse shaft support and the fine shaft support have an arc-shaped groove at their upper ends.

[0024] By setting arc-shaped grooves on the thick shaft support and the thin shaft support, the thin and thick sections of heat-treated pipes with different diameters can be stuck in the arc-shaped grooves, which facilitates straightening.

[0025] On the other hand, the present invention provides a method for using the straightening equipment for heat-treated pipes of unequal diameters, comprising the following steps:

[0026] S1: Start motor one, adjust the tilt direction of the feeding plate, place the heat-treated pipe fittings of unequal diameter to be straightened on the feeding plate, the thick section of the heat-treated pipe fittings of unequal diameter is located on the part of the feeding plate without the feeding spring plate, and the thin section of the heat-treated pipe fittings of unequal diameter is located on the part of the feeding plate with the feeding spring plate. The heat-treated pipe fittings of unequal diameter slide down the feeding plate until roller one and roller two lift up the thick section of the heat-treated pipe fittings of unequal diameter, and roller three and roller four lift up the thin section of the heat-treated pipe fittings of unequal diameter.

[0027] S2: Start motor two, roller one rotates, driving the heat-treated pipe fittings of unequal diameter, roller two, roller three and roller four to rotate, and measure the roundness of the heat-treated pipe fittings of unequal diameter;

[0028] S3: Start the feeding cylinder. The cylinder rod of the feeding cylinder rises, which drives the end of the feeding plate away from the heat-treated pipes of unequal diameter to rise, so that the end of the feeding plate close to the heat-treated pipes of unequal diameter falls. The thick section of the heat-treated pipes of unequal diameter is supported by the thick shaft support, and the thin section of the heat-treated pipes of unequal diameter is supported by the thin shaft support.

[0029] S4: Start motor one, so that the upper rod rail one presses against the thick section of the heat-treated pipe fitting with unequal diameter, the pressure plate presses against the thin section of the heat-treated pipe fitting with unequal diameter, and the hydraulic pressure head presses down to straighten;

[0030] S5: After straightening, start the feeding cylinder. The cylinder rod of the feeding cylinder descends, and the heat-treated pipes of different diameters are lifted and discharged along the feeding plate.

[0031] The beneficial effects of the above-mentioned technical solution of the present invention are as follows: The present invention adopts a continuous loading and unloading method. The loading mechanism adjusts the tilt direction of the loading plate by rotating the first motor, and guides the heat-treated pipes of unequal diameters into the straightening position. The unloading mechanism lifts the heat-treated pipes of unequal diameters along the unloading plate and leads them out to the straightening position by extending and retracting the unloading cylinder, eliminating the inconvenience of back-and-forth hoisting and saving time. The loading plate of the present invention is provided with a loading spring plate, and the unloading plate is provided with a unloading spring plate, which compensates for the support of the thin sections of the heat-treated pipes of unequal diameters, which is conducive to the smooth introduction or exit of the heat-treated pipes of unequal diameters into or out of the straightening position. The loading plate of the present invention is provided with an upper rail one and an upper rail two on both sides. The upper rail two is provided with a pressure plate. The pressure plate presses the thin sections of the heat-treated pipes of unequal diameters, and the upper rail one presses the thick sections of the heat-treated pipes of unequal diameters, which is conducive to the smooth straightening process. The feeding plate of this invention is provided with a lower rod rail one and a lower rod rail two on both sides. A compensation unit is provided on the lower rod rail two. The motor two drives the roller one to rotate, thereby causing the heat-treated pipes of unequal diameters, roller two, roller three and roller four to rotate. The roundness of the heat-treated pipes of unequal diameters can be measured. The compensation unit compensates for the support of the thinner sections of the heat-treated pipes of unequal diameters. After the roundness is measured, the cylinder rod of the feeding cylinder rises, so that the thicker section of the heat-treated pipe of unequal diameters enters the thick shaft support and the thinner section enters the thin shaft support. This facilitates straightening, is convenient to operate, and can effectively improve production efficiency. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the straightening equipment for heat-treated pipes of unequal diameter according to the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of the heat-treated tubes of unequal diameters in the present invention, in the state to be straightened;

[0034] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0035] Figure 4 This is a schematic diagram of the feeding plate of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of the pressure bar and pressure plate of the present invention;

[0037] Figure 6 This is a schematic diagram of the rotating rod of the present invention;

[0038] Figure 7 This is a schematic diagram of the support base of the present invention;

[0039] Figure 8 This is a schematic diagram of the structure of the rod of the present invention;

[0040] Figure 9This is a schematic diagram of the structure of the adjustment component of the present invention;

[0041] Figure 10 This is a schematic diagram of the control board of the present invention.

[0042] In the diagram: 1. Feeding spring plate; 2. Upper rod rail two; 3. Connecting rod one; 4. Thin shaft support; 5. Heat-treated pipe fittings of unequal diameters; 6. Discharge spring plate; 7. Lower rod rail two; 8. Discharge cylinder; 9. Limiting groove; 10. Connecting rod three; 11. Connecting rod two; 12. Slide groove two; 13. Lower rod rail one; 14. Discharge plate; 15. Roller one; 16. Roller two; 17. Feeding plate; 18. Feeding support rod two; 19. Slide groove one; 20. Feeding support rod one; 21. Rotating rod; 22. 1. Upper rail 1; 23. Lowering support rod; 24. Pressure rod; 25. Pressure plate; 26. Roller 3; 27. Roller 4; 28. Top plate; 29. ​​Plate groove 1; 30. Support seat; 31. Guide rod 1; 32. Spring pin; 33. Rod; 34. Inner column; 35. Inner column slide groove; 36. Outer connecting rod; 37. Inner connecting rod; 38. Outer column; 39. Lowering button; 40. Control panel; 41. Support column; 42. Raising button; 43. Connecting rod; 44. Guide rod 2. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of the present invention. Figure 1-10 The technical solutions of the embodiments of the present invention will be clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0044] Example

[0045] like Figures 1-3 As shown in the figure, this embodiment provides a straightening device for heat-treated pipe fittings 5 ​​with unequal diameters, comprising:

[0046] The support base includes a feeding support assembly, a thick shaft support member, a thin shaft support member 4, and a discharging support assembly. The thick shaft support member is used to support the thick section of the heat-treated pipe fitting 5 with unequal diameters, and the thin shaft support member 4 is used to support the thin section of the heat-treated pipe fitting 5 with unequal diameters.

[0047] The feeding mechanism includes a feeding plate 17 disposed on the feeding support assembly, a feeding spring plate 1 disposed on the feeding plate 17, and upper rod rail 1 22 and upper rod rail 2 disposed on both sides of the feeding plate 17.

[0048] The unloading mechanism includes an unloading plate 14 mounted on the unloading support assembly, an unloading spring plate 6 mounted on the unloading plate 14, and unloading rod rails 13 and 7 mounted on both sides of the unloading plate 14.

[0049] A hydraulic pressure head, positioned above the support base, is used to press down and straighten heat-treated pipe fittings 5 ​​of unequal diameters.

[0050] Specifically, the feeding support assembly includes a feeding support rod 1 (20), a feeding support rod 2 (18), a motor 1 mounted on the feeding support rod 1 (20), and a connecting rod 1 (3) mounted on the feeding support rod 2 (18). A rotating rod 21 is connected to the output shaft of the motor 1. One side of the rotating rod 21 is connected to the feeding plate 17, and the other side is connected to the upper rail 1 (22) or upper rail 2 (2). The upper rail 1 (22), upper rail 2 (2), and feeding plate 17 are all provided with a sliding groove 19, and the connecting rod 1 (3) is located within the sliding groove 19. The motor 1 drives the rotating rod 21 to rotate, which in turn moves the feeding plate 17, upper rail 1, and upper rail 2, allowing adjustment of the tilt direction of the feeding plate 17. The structure of the rotating rod 21 is as follows: Figure 6 As shown.

[0051] The material feeding support assembly includes a material feeding support rod 23, a connecting rod 211 set on the material feeding support rod 23, and a sliding groove 22 on the lower rod rail 13, the lower rod rail 27 and the material feeding plate 14. The connecting rod 211 is located in the sliding groove 22. A connecting rod 30 is also connected between the lower rod rail 13, the lower rod rail 27 and the material feeding plate 14. A material feeding cylinder 8 is provided below the connecting rod 30. The cylinder rod of the material feeding cylinder 8 drives the connecting rod 30 to rise and fall, thereby tilting the lower rod rail 13, the lower rod rail 27 and the material feeding plate 14.

[0052] The coarse shaft support and fine shaft support 4 are located in the middle of the support base, in the straightening position. Two feeding support rods 1 and 20 are provided, located on both sides of the feeding plate 17, respectively. Two unloading support rods 23 are also provided, located on both sides of the unloading plate 14. When motor 1 is started, the feeding plate 17 tilts, and the heat-treated pipes 5 of unequal diameters fall along the feeding plate 17. The coarse shaft support and fine shaft support 4 support the heat-treated pipes 5 of unequal diameters. After the hydraulic pressure head presses down to straighten them, the unloading cylinder 8 is started, the unloading plate 14 tilts, and the heat-treated pipes 5 of unequal diameters are discharged along the unloading plate 14.

[0053] In addition, a motor, roller 15, and roller 2 16 are provided on the lower rod rail 13 at the part of the thick shaft support member. The motor 2 drives the roller 15 to rotate. A compensation unit is provided on the lower rod rail 2 7 at the part of the thin shaft support member 4.

[0054] The compensation unit includes a limiting groove 9 on the lower rail 2 7, a limiting hole in the limiting groove 9, a limiting rod in the limiting hole, a spring 1 sleeved on the limiting rod, a top plate 28 at the upper end of the limiting rod, and rollers 3 26 and 4 27 on the top plate 28.

[0055] Two limiting holes and two limiting rods are provided. One end of spring one is connected to the top plate 28, and the other end is connected to the limiting groove 9. After the heat-treated pipe fittings 5 ​​of unequal diameters fall from the loading plate 17, roller one 15 and roller two 16 support the thicker section of the heat-treated pipe fittings 5 ​​of unequal diameters, and roller three 26 and roller four 27 support the thinner section of the heat-treated pipe fittings 5 ​​of unequal diameters. Motor two drives roller one 15 to rotate, thereby causing the heat-treated pipe fittings 5 ​​of unequal diameters, roller two 16, roller three 26, and roller four 27 to rotate, so that the roundness of the heat-treated pipe fittings 5 ​​of unequal diameters can be measured. The compensation unit compensates for the support of the thinner section of the heat-treated pipe fittings 5 ​​of unequal diameters. After the roundness is measured, the cylinder rod of the unloading cylinder 8 rises, so that the thicker section of the heat-treated pipe fittings 5 ​​of unequal diameters falls into the thick shaft support, and the thinner section falls into the thin shaft support 4, which is convenient for straightening.

[0056] As a preferred embodiment of this invention, such as Figure 3 and Figure 5 As shown, the upper rail 2 has a through hole 1, a pressure rod 24 is provided in the through hole 1, a spring 2 is sleeved on the pressure rod 24, and a pressure plate 25 is provided at the end of the pressure rod 24.

[0057] One end of spring 2 is connected to pressure rod 24, and the other end is connected to through hole 1. Pressure plate 25 is arc-shaped. During the straightening process of heat-treated pipe fittings 5 ​​with unequal diameters, pressure plate 25 can compensate and press the thinner sections of heat-treated pipe fittings 5 ​​with unequal diameters, while the thicker sections of heat-treated pipe fittings 5 ​​with unequal diameters are pressed by upper rail 1 22. The width of feeding plate 17 is less than the length of upper rail 1 22 and upper rail 2 2.

[0058] As a preferred embodiment of this invention, such as Figure 4 As shown, the feeding plate 17 is provided with several plate grooves 29, and the plate grooves 29 are provided with through holes 2. The feeding spring plate 1 includes a support rod 1 set in the through hole 2 and a plate body 1 set on the support rod 1. A spring 3 is sleeved on the support rod 1.

[0059] The structure of the feeding plate 14 is the same as that of the feeding plate 17. The feeding plate 14 is provided with several plate grooves 2, and the plate grooves 2 are provided with through holes 3. The feeding spring plate 6 includes a support rod 2 set in the through hole 3, a plate body 2 set on the support rod 2, and a spring 4 sleeved on the support rod 2.

[0060] The feeding spring plate 1 supports the thin sections of the heat-treated pipe fittings 5 ​​with unequal diameters during the feeding process, and the unloading spring plate 6 supports the thin sections of the heat-treated pipe fittings 5 ​​with unequal diameters during the unloading process. One end of spring three is connected to plate one, and the other end is connected to through hole two. One end of spring four is connected to plate two, and the other end is connected to through hole three. A portion of the feeding plate 17 has a plate groove 29, and a portion of the unloading plate 14 has a plate groove 2.

[0061] As a preferred embodiment, both the upper ends of the coarse shaft support and the fine shaft support 4 are provided with arc-shaped grooves, so that the thin and thick sections of the heat-treated tubes 5 with different diameters are both stuck in the arc-shaped grooves, which facilitates straightening.

[0062] As a preferred embodiment of this invention, such as Figures 7-10 As shown, the thin shaft support 4 includes a support base 30 and a rod 33 disposed at the lower part of the support base 30. A support cylinder is installed inside the rod 33. The cylinder rod of the support cylinder drives the support base 30 to rise and fall. The bottom of the support base 30 is also provided with a first guide rod 31 and a second guide rod 44, as shown... Figure 7 As shown, guide rod 31 and guide rod 44 extend into rod 33, and the cylinder rod drives guide rod 44 to move. An adjustment assembly is embedded in the support base 30. The adjustment assembly includes a control plate 40, an inner column 34 and an outer column 38 positioned above the control plate 40, a support column 41 positioned in the middle of the control plate 40, and an inner connecting rod 37 and an outer connecting rod 36 positioned at the ends of the support column 41. Spring pins 32 are provided on the upper surfaces of both the inner column 34 and the outer column 38, extending from the arc-shaped groove of the thin shaft support 4. The control plate 40 has a down button 39 and an up button 42, which control the raising and lowering of the cylinder rod. The down button 39 is located below the inner column 34, and the up button 42 is located below the outer column 38. The inner column 34 has an inner column groove 35, and the outer column 38 has an outer column groove. Both the inner connecting rod 37 and the outer connecting rod 36 are telescopic sleeves. Both are hinged to the support column 41. One end of the inner connecting rod 37 is hinged to the inner column 34, and the other end is secured in the outer column groove by a limiting block, allowing it to slide along the outer column groove. One end of the outer connecting rod 36 is hinged to the outer column 38, and the other end is secured in the inner column groove 35 by a limiting block, allowing it to slide along the inner column groove 35. A connecting rod 43 is located at the lower part of the control panel 40, and a spring is mounted on the connecting rod 43.

[0063] The structure of member 33 is as follows Figure 8As shown, there are three holes, corresponding to guide rod 31 and guide rod 44 on the support base 30, respectively. The inner connecting rod 37 and the outer connecting rod 36 have similar structures, except that the positions of the inner column groove 35 and the outer column groove are different. The heat-treated tubes 5 of unequal diameters fall onto the coarse shaft support and the fine shaft support 4. When adjusting the shaft center, if the support is too high, the inner column 34 is pressed down, triggering the lowering button 39. The cylinder rod of the support cylinder descends, the support base 30 descends, the outer column 38 also descends, and the support column 41 and the control plate 40 descend. After balancing, the lowering button 39 is released. When the support is too low, the outer column 38 is pressed down, triggering the raising button 42. The cylinder rod of the support cylinder rises, the support base 30 rises, the inner column 34 rises, and the support column 41 and the control plate 40 rise. After balancing, the raising button 42 is released.

[0064] During the clamping process of pipe fittings with unequal diameters, the diameters of the two shafts are different. When measuring the roundness of the shafts, the pipe fitting needs to be rotated. During rotation, it is necessary to ensure that the axial centers of both ends of the shaft are on the same horizontal line so that the straightened shaft is more accurate. Currently, during clamping, one end needs to be continuously adjusted until the axial centers of both ends are on the same horizontal line, which is time-consuming, cumbersome, and reduces production efficiency. Using the adjustment component of this invention, the heat-treated pipe fittings 5 ​​with unequal diameters can be automatically aligned, shortening the time for adjusting the axial center and improving production efficiency.

[0065] The method for using straightening equipment for heat-treated pipe fittings of unequal diameters includes the following steps:

[0066] S1: Start motor one, adjust the tilt direction of the feeding plate 17, place the heat-treated tube 5 of unequal diameter to be straightened on the feeding plate 17, the thick section of the heat-treated tube 5 of unequal diameter is located on the part of the feeding plate 17 without the feeding spring plate 1, and the thin section of the heat-treated tube 5 of unequal diameter is located on the part of the feeding plate 17 with the feeding spring plate 1. The heat-treated tube 5 of unequal diameter slides down the feeding plate 17 until roller one 15 and roller two 16 lift the thick section of the heat-treated tube 5 of unequal diameter, and roller three 26 and roller four 27 lift the thin section of the heat-treated tube 5 of unequal diameter.

[0067] S2: Start motor two, roller one 15 rotates, driving the unequal diameter heat-treated pipe fitting 5, roller two 16, roller three 26 and roller four 27 to rotate, and measure the roundness of the unequal diameter heat-treated pipe fitting 5;

[0068] S3: Start the cylinder, the cylinder rod rises, driving the end of the unloading plate 14 away from the heat-treated pipe 5 of unequal diameter to rise, so that the end of the unloading plate 14 close to the heat-treated pipe 5 of unequal diameter falls. The thick section of the heat-treated pipe 5 of unequal diameter is supported by the thick shaft support, and the thin section of the heat-treated pipe 5 of unequal diameter is supported by the thin shaft support 4.

[0069] S4: Start motor one, so that the upper rod rail one 22 presses the thick section of the heat-treated pipe fitting 5 of different diameters, and the pressure plate 25 presses the thin section of the heat-treated pipe fitting 5 of different diameters, and the hydraulic pressure head presses down to straighten.

[0070] S5: After straightening, start the cylinder, the cylinder rod descends, the heat-treated pipes 5 of unequal diameter are lifted and discharged along the unloading plate 14.

[0071] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0072] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A straightening device for heat-treated pipe fittings of unequal diameter, characterized in that: include: The support base includes a feeding support assembly, a thick shaft support, a thin shaft support, and a discharging support assembly. The thick shaft support is used to support the thick section of the heat-treated pipe with unequal diameters, and the thin shaft support is used to support the thin section of the heat-treated pipe with unequal diameters. The feeding mechanism includes a feeding plate mounted on the feeding support assembly, a feeding spring plate mounted on the feeding plate, and upper rod rail one and upper rod rail two mounted on both sides of the feeding plate. The feeding mechanism includes a feeding plate mounted on the feeding support assembly, a feeding spring plate mounted on the feeding plate, and a feeding rod rail one and a feeding rod rail two mounted on both sides of the feeding plate. A hydraulic pressure head, positioned above the support base, is used to press down and straighten heat-treated pipe fittings of unequal diameters. The feeding spring plate supports the thin sections of heat-treated pipe fittings of unequal diameter during the feeding process, and the unloading spring plate supports the thin sections of heat-treated pipe fittings of unequal diameter during the unloading process. On the lower rod rail one, at the part of the thick shaft support, there is a motor two, a roller one and a roller two. The motor two drives the roller one to rotate. On the lower rod rail two, at the part of the thin shaft support, there is a compensation unit. The compensation unit includes a limiting groove on the lower rail 2, a limiting hole in the limiting groove, a limiting rod in the limiting hole, a spring 1 sleeved on the limiting rod, a top plate at the upper end of the limiting rod, and rollers 3 and 4 on the top plate. The thin shaft support includes a support base and a rod located at the lower part of the support base. A support cylinder is installed within the rod, and the cylinder rod of the support cylinder can drive the support base to rise and fall. An adjustment assembly is embedded within the support base. The adjustment assembly includes a control plate, an inner column and an outer column located above the control plate, a support column located in the middle of the control plate, and an inner connecting rod and an outer connecting rod hinged to the ends of the support column. Spring pins are provided on the upper surfaces of both the inner and outer columns, extending out of the arc-shaped grooves of the thin shaft support. The control plate has a lowering button and an raising button for controlling the raising and lowering of the cylinder rod. The lowering button is located below the inner column, and the raising button is located below the outer column. The inner column has an inner column groove, and the outer column has an outer column groove. Both the inner and outer connecting rods are telescopic sleeves. One end of the inner connecting rod is hinged to the inner column, and the other end is locked in the outer column groove by a limiting block. One end of the outer connecting rod is hinged to the outer column, and the other end is locked in the inner column groove by a limiting block. The feeding support assembly includes a feeding support rod 1, a feeding support rod 2, a motor 1 mounted on the feeding support rod 1, and a connecting rod 1 mounted on the feeding support rod 2. A rotating rod is connected to the output shaft of the motor 1. One side of the rotating rod is connected to the feeding plate, and the other side of the rotating rod is connected to the upper rod rail 1 or the upper rod rail 2. The upper rod rail 1, the upper rod rail 2, and the feeding plate are all provided with a sliding groove 1, and the connecting rod 1 is located in the sliding groove 1. The material feeding support assembly includes a material feeding support rod, a connecting rod 2 set on the material feeding support rod, a sliding groove 2 provided on the lower rod rail 1, the lower rod rail 2 and the material feeding plate, the connecting rod 2 located in the sliding groove 2, and a connecting rod 3 connected between the lower rod rail 1, the lower rod rail 2 and the material feeding plate. A material feeding cylinder is provided below the connecting rod 3, and the cylinder rod of the material feeding cylinder drives the connecting rod 3 to rise and fall.

2. The straightening equipment for heat-treated pipe fittings of unequal diameters as described in claim 1, characterized in that: The upper rail is provided with a through hole, a pressure rod is provided in the through hole, a spring is sleeved on the pressure rod, and a pressure plate is provided at the end of the pressure rod.

3. The straightening equipment for heat-treated pipe fittings of unequal diameters as described in claim 2, characterized in that: The feeding plate is provided with a plurality of plate grooves, and the plate grooves are provided with through holes. The feeding spring plate includes a support rod provided in the through hole and a plate body provided on the support rod. A spring is sleeved on the support rod.

4. The straightening equipment for heat-treated pipe fittings of unequal diameters as described in claim 3, characterized in that: The feeding plate is provided with a plurality of plate grooves 2, and the plate grooves 2 are provided with through holes 3. The feeding spring plate includes a support rod 2 disposed in the through hole 3 and a plate body 2 disposed on the support rod 2. A spring 4 is sleeved on the support rod 2.

5. The straightening equipment for heat-treated pipe fittings of unequal diameters as described in claim 4, characterized in that: Both the thick shaft support and the thin shaft support have an arc-shaped groove at their upper ends.

6. The method of using the straightening equipment for heat-treated pipe fittings of unequal diameters as described in claim 5, characterized in that: Includes the following steps: S1: Start motor one, adjust the tilt direction of the feeding plate, place the heat-treated pipe fittings of unequal diameter to be straightened on the feeding plate, the thick section of the heat-treated pipe fittings of unequal diameter is located on the part of the feeding plate without the feeding spring plate, and the thin section of the heat-treated pipe fittings of unequal diameter is located on the part of the feeding plate with the feeding spring plate. The heat-treated pipe fittings of unequal diameter slide down the feeding plate until roller one and roller two lift up the thick section of the heat-treated pipe fittings of unequal diameter, and roller three and roller four lift up the thin section of the heat-treated pipe fittings of unequal diameter. S2: Start motor two, roller one rotates, driving the heat-treated pipe fittings of unequal diameter, roller two, roller three and roller four to rotate, and measure the roundness of the heat-treated pipe fittings of unequal diameter; S3: Start the feeding cylinder. The cylinder rod of the feeding cylinder rises, which drives the end of the feeding plate away from the heat-treated pipes of unequal diameter to rise, so that the end of the feeding plate close to the heat-treated pipes of unequal diameter falls. The thick section of the heat-treated pipes of unequal diameter is supported by the thick shaft support, and the thin section of the heat-treated pipes of unequal diameter is supported by the thin shaft support. S4: Start motor one, so that the upper rod rail one presses against the thick section of the heat-treated pipe fitting with unequal diameter, the pressure plate presses against the thin section of the heat-treated pipe fitting with unequal diameter, and the hydraulic pressure head presses down to straighten; S5: After straightening, start the feeding cylinder. The cylinder rod of the feeding cylinder descends, and the heat-treated pipes of different diameters are lifted and discharged along the feeding plate.

Images