A servo ring rolling stable forming method and device

Abstract

The application discloses a kind of servo ring piece rolling stable forming method and device, belong to ring piece rolling forming processing technical field.Method includes following steps: response ring piece rolling process obtains the change of ring piece size, the change of relative position of ring piece and taper roller, the change of relative position of rolling table and lower taper roller, the change of rolling condition and the deformation resistance of ring piece under the change of rolling temperature, the height of rolling table is adjusted, so that the table surface of rolling table and the upper generatrix of lower taper roller are in the same horizontal plane.Device includes rolling table, moving wedge, fixed wedge, displacement sensor, laser measuring instrument and driver, by above-mentioned method and the setting of structure, to obtain ring piece rolling condition, and ring piece automatically adjusts its height in response to rolling condition.Solve the height of rolling table cannot respond to the height of rolling table and adjust itself in response to the rolling condition of ring piece during rolling process, and the problem that ring piece forming is easily affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ring rolling forming technology, in particular to a servo ring rolling stable forming method and device. BACKGROUND

[0002] Ring rolling (also known as ring rolling, ring rolling, hole expanding, ring rolling) is a plastic processing technology that makes ring parts produce continuous local plastic deformation by means of ring rolling machine (also known as ring rolling machine, ring rolling machine, hole expander), and then realizes the wall thickness reduction, diameter expansion and cross section profile forming. This process is suitable for producing various shapes and sizes of ring-shaped mechanical parts, such as bearing rings, gear rings, flanges, hubs, thin-walled cylindrical parts, wind power flanges, high-neck flanges and other types of seamless ring-shaped forgings. Ring products are widely used in many industrial fields such as machinery, automobiles, trains, ships, petrochemical industry, aviation, aerospace, atomic energy and wind power. The materials of ring parts are usually carbon steel, alloy steel, stainless steel, titanium alloy, copper alloy, aluminum alloy, cobalt alloy, nickel-based alloy, high-temperature alloy, etc.

[0003] The existing ring rolling machine places the ring on the rolling workbench plate. Since the ring is in a state of continuous rotation during rolling, the surface of the rolling workbench plate is easily worn out during long-time rolling, causing the spatial position of the ring to change. The structure of other ring rolling machines does not change, which affects the ring rolling forming.

[0004] Generally, the measures to deal with the wear of the rolling workbench plate are to directly replace the rolling workbench plate or to adjust the height of the rolling workbench by adjusting the gasket. The rolling workbench plates on both sides of the core roller are fixed on the lower base of the core roller by bolts. When the height of the rolling workbench plate needs to be adjusted, all the bolts must be loosened, the rolling workbench plate must be lifted, and then the adjusting gasket must be inserted or removed to change the height of the rolling workbench plate. The process is complex, the workload is large, and it must be stopped for production and wait for the rolling workbench plate to cool down to near room temperature before it can be carried out. The new special difficult-to-deform high-temperature alloy material has high deformation resistance and high hardness. In the production process, the height of the rolling workbench needs to be adjusted in real time according to different sizes and materials of the products. The existing height adjustment method of the rolling workbench plate cannot meet the current production needs, which not only affects the precision of the ring, but also reduces the production efficiency. SUMMARY

[0005] The present application aims at solving the problem that the existing ring is easily affected in forming due to the fact that the height of the rolling table cannot be adjusted in response to the rolling condition of the ring during rolling, and provides a servo ring rolling stable forming method and device, which can be used to make the table surface of the rolling table and the upper generatrix of the lower cone roller in the same horizontal plane in response to the rolling condition of the ring during rolling, so as to adapt to the stable forming of the ring rolling, improve the forming precision of the ring rolling, and the height adjustment of the rolling table does not need to be stopped for adjustment, thereby increasing the work efficiency and greatly reducing the production cost for producing the ring.

[0006] In a first aspect, the present application provides a servo ring rolling stable forming method, comprising the following steps:

[0007] In response to the change of the ring size, the change of the relative position of the ring and the cone roller, the change of the relative position of the rolling table and the lower cone roller, the change of the rolling condition and the deformation resistance of the ring under the change of the rolling temperature during the rolling of the ring, the height of the rolling table is adjusted, so that the table surface of the rolling table and the upper generatrix of the lower cone roller are in the same horizontal plane.

[0008] According to an embodiment of the present application, the ring size comprises the wall thickness of the ring, the outer diameter of the ring and the inner diameter of the ring;

[0009] The relative position of the ring and the cone roller comprises the length L1 of the position of the outer diameter of the ring on the cone roller to the tip surface of the cone roller, the maximum length L2 of the position of the outer diameter of the ring on the cone roller to the tip surface of the cone roller and the effective rolling width of the ring between L1 and L2 on the cone roller;

[0010] The relative position of the rolling table and the lower cone roller is the distance between the rolling table and the upper generatrix of the lower cone roller;

[0011] The rolling condition comprises the diameter of the main roller, the diameter of the core roller, the radial feeding speed, the axial feeding speed, the rolling linear speed, the maximum sinking deformation of the lower cone roller and the rated axial rolling force of the ring rolling mill.

[0012] According to an embodiment of the present application, the height adjustment value of the rolling table is Z, which makes the table surface of the rolling table and the upper generatrix of the lower cone roller in the same horizontal plane, and Z is calculated according to the following formula:

[0013]

[0014] Wherein, H is the wall thickness of the ring, B is the height of the ring, D is the outer diameter of the ring, d is the inner diameter of the ring, L is the length L1 of the position of the outer diameter of the ring on the cone roller to the tip surface of the cone roller, L 随动点 is the maximum length L2 of the position of the outer diameter of the ring on the cone roller to the tip surface of the cone roller, and L 有效区域L1 and L2 are effective rolling widths of the ring on the conical roller, Z0 is the distance between the rolling table and the generatrix of the lower conical roller, σ is the deformation resistance of the ring under the change of rolling temperature, D1 is the diameter of the main roller, D2 is the diameter of the core roller, V H V is the radial feed speed, V r V is the rolling linear speed, V B Z is the axial feed speed, Z MAX P is the maximum sinking deformation of the lower conical roller, P 额定轴向轧制力 F is the rated axial rolling force of the ring rolling machine.

[0015] According to one embodiment of the present application, the height of the table surface of the first rolling table located on the side of the ring outlet is adjusted to be higher than the height of the table surface of the second rolling table located on the side of the ring inlet, based on the fact that the table surface of the rolling table and the generatrix of the lower conical roller are in the same horizontal plane.

[0016] According to one embodiment of the present application, the height of the table surface of the first rolling table is higher than the height of the table surface of the second rolling table by Z1, and Z1 is calculated according to the following formula:

[0017]

[0018] wherein, ɑ is 3.5-5.5, σ is the deformation resistance of the ring under the change of rolling temperature, H is the wall thickness of the ring, B is the height of the ring, π is 3.14, D1 is the diameter of the main roller, D2 is the diameter of the core roller, D is the outer diameter of the ring, d is the inner diameter of the ring, V H V is the radial feed speed, V r V is the rolling linear speed.

[0019] In the second aspect, the present application provides a device for performing the above-mentioned servo ring rolling stable forming method, which comprises a rolling table, a movable wedge block, a fixed wedge block, a displacement sensor, a fixed base and a driver.

[0020] The movable wedge block is located below the rolling table, the movable wedge block is connected with the driver, the fixed wedge block is fixedly connected with the rolling table, the movable wedge block abuts against the fixed wedge block, and the displacement sensor is arranged on the driver.

[0021] The driver can drive the movable wedge block to move relative to the fixed wedge block, and at the same time, the movable wedge block drives the fixed wedge block to rise and fall.

[0022] The rolling table is used for placing the ring, and the rolling table is arranged on both sides of the main roller and the core roller; taking the plane where the axis of the main roller and the core roller is located as a boundary surface, along the direction in which the ring rotates, the rolling table on the side of the main roller and the core roller to which the ring is constantly approaching is a second rolling table, and the rolling table on the side of the main roller and the core roller from which the ring is constantly moving away is a first rolling table.

[0023] The displacement sensor feeds back the moving wedge position to the driver, and the driver can drive the moving wedge to move to a preset position relative to the fixed wedge;

[0024] The fixed base is located below the rolling table, the driver is fixedly connected with the fixed base, and the moving wedge is located at the end face of the fixed base.

[0025] According to one embodiment of the present application, the moving wedge is provided with a limiting groove, and the fixed wedge is provided with a limiting block matched with the limiting groove; or the moving wedge is provided with a limiting block, and the fixed wedge is provided with a limiting groove matched with the limiting block.

[0026] When the driver drives the moving wedge to move relative to the fixed wedge, the limiting block moves in the limiting groove; when the limiting block abuts against the groove wall of the limiting groove, the moving wedge stops moving.

[0027] According to one embodiment of the present application, the length of the limiting groove 8 is 1mm-13mm.

[0028] According to one embodiment of the present application, the fixed base is provided with a horizontal guide plate and a longitudinal guide rod, the horizontal guide plate is arranged at the end face of the fixed base and fixedly connected with the fixed base, the horizontal guide plate is parallel to the fixed base, and the moving wedge contacts the fixed base through the horizontal guide plate; the longitudinal guide rod is fixedly connected with the fixed base, the longitudinal guide rod is perpendicular to the fixed base, and the rolling table is provided with a guide groove matched with the longitudinal guide rod.

[0029] According to one embodiment of the present application, the driver and the displacement sensor are provided with a heat insulation assembly.

[0030] The present application has the following beneficial effects:

[0031] 1. The present application automatically adjusts the height during the ring rolling process in response to the changes of the above parameters, so that the table surface of the rolling table and the generatrix on the lower cone roller are in the same horizontal plane, ensuring stable ring rolling forming, and further improving the ring rolling forming precision.

[0032] 2. The present application adjusts the height of the rolling table twice according to the axial rolling and radial rolling of the ring during the production process, ensuring stable rolling forming, and further improving the ring precision. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 Structure diagram of the present application is shown;

[0034] Figure 2 Structure diagram of the present application Figure 1 Structure diagram of the present application is shown;

[0035] Figure 3 Structure diagram of the present application is shown Figure 1 Structure diagram of the present application is shown;

[0036] Figure 4 Structure diagram of the present application is shown;

[0037] Figure 5 Structure diagram of the present application is shown.

[0038] Reference signs: 1 - ring; 2 - rolling station; 201 - first rolling station; 202 - ring second rolling station; 3 - cone roller; 301 - upper cone roller; 302 - lower cone roller; 303 - upper generatrix of lower cone roller; 4 - moving wedge; 5 - fixed wedge; 6 - displacement sensor; 7 - driver; 8 - limiting groove; 9 - limiting block; 10 - fixed base; 11 - horizontal guide plate; 12 - longitudinal guide rod; 13 - guide groove; 14 - small rolling station; 15 - core roller; 16 - main roller. DETAILED DESCRIPTION

[0039] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application, i.e., the described embodiments are only a part of the embodiments of the present application, but not all the embodiments.

[0040] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0041] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0042] In addition, the terms "mounting", "arrangement", "provided with", "connected", "linked" should be interpreted broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific types and structures can be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0044] Specifically, in a first aspect, as shown in the drawings, the present application provides a servo ring rolling stable forming method, comprising the following steps: Figures 1-5

[0045] In response to the changes of the size of the ring 1, the relative position of the ring 1 and the taper roller 3, the relative position of the rolling table 2 and the lower taper roller 302, the rolling condition and the deformation resistance of the ring 1 under the change of rolling temperature during the rolling process of the ring 1, the height of the rolling table 2 is adjusted so that the table surface of the rolling table 2 and the upper generatrix 303 of the lower taper roller are in the same horizontal plane.

[0046] In this embodiment, during the rolling process of the ring 1, the changes of the size of the ring 1, the relative position of the ring 1 and the taper roller 3, the relative position of the rolling table 2 and the lower taper roller 302, the rolling condition and the deformation resistance of the ring 1 under the change of rolling temperature are detected. According to the changes of each parameter during the rolling process of the ring 1, and during the rolling process of the ring 1, the moving wedge 4 is driven by the driver 7, the moving wedge 4 cooperates with the fixed wedge 5 to adjust the height of the rolling table 2, until the height of the rolling table 2 is adjusted to the same horizontal plane of the table surface of the rolling table 2 and the upper generatrix 303 of the lower taper roller.

[0047] ​In the embodiment, since the ring 1 is in a state of continuous deformation during rolling, the size of the ring 1 changes, the relative position of the ring 1 to the conical roller 3 changes, and the ring 1 rotates on the rolling table 2 for a long time, the ring 1 rubs against the rolling table 2, the rolling table 2 is worn, the relative position of the rolling table 2 to the lower conical roller 302 changes, and the rolling conditions of the ring 1 change due to the change in the size of the ring 1. Further, the deformation resistance of the ring 1 is obtained according to the change in the temperature of the ring 1. Therefore, the height of the rolling table 2 is automatically adjusted in response to the changes in the above parameters during the rolling of the ring 1, so that the surface of the rolling table 2 and the upper generatrix 303 of the lower conical roller are in the same horizontal plane, the ring 1 is stably rolled and formed, and the rolling and forming precision of the ring 1 is improved. The height of the rolling table 2 is adjusted without stopping, the manual operation is reduced, the work efficiency is improved, and the production cost is greatly reduced.

[0048] In some embodiments, the height adjustment range of the rolling table 2 is 1mm-13mm, and the rolling table 2 is steplessly and accurately adjusted in the range, so as to adapt to various situations in the rolling of the ring 1 and to adapt to the rolling of the ring 1 in different situations.

[0049] Further, the height adjustment range of the rolling table 2 is-10mm-2mm based on the reference zero point of the upper generatrix 303 of the lower conical roller, specifically, the rolling table 2 is raised by 2mm based on the horizontal plane of the reference zero point of the upper generatrix 303 of the lower conical roller, and the rolling table 2 is lowered by 10mm based on the horizontal plane of the reference zero point of the upper generatrix 303 of the lower conical roller, so as to improve the precision of the stable rolling and forming of the ring 1.

[0050] According to one embodiment of the present application, as shown in Figures 1-5 The size of the ring 1 includes the wall thickness of the ring 1, the outer diameter of the ring 1, and the inner diameter of the ring 1;

[0051] The relative position of the ring 1 to the conical roller 3 includes the length L1 of the position of the outer diameter of the ring 1 on the conical roller 3 to the tip surface of the conical roller 3, the maximum length L2 of the position of the outer diameter of the ring 1 on the conical roller 3 to the tip surface of the conical roller 3, and the effective rolling width of the ring 1 between L1 and L2 on the conical roller 3;

[0052] The relative position of the rolling table 2 to the lower conical roller 302 is the distance between the rolling table 2 and the upper generatrix 303 of the lower conical roller;

[0053] The rolling conditions include the diameter of the main roller 16, the diameter of the core roller 15, the radial feeding speed, the axial feeding speed, the rolling linear speed, the maximum sinking deformation amount of the lower conical roller 302, and the rated axial rolling force of the ring rolling machine.

[0054] In the embodiment, the upper end of the ring 1 is subjected to the pressure applied by the upper conical roller 301, the lower end of the ring 1 is subjected to the pressure applied by the lower conical roller 302, the ring 1 expands to the inside and outside, and the inner and outer diameters and the wall thickness of the ring 1 change, so the inner and outer diameters and the wall thickness of the ring 1 need to be detected. The rolling temperature of the ring 1 in the axial rolling process also affects the deformation resistance of the ring 1, and the deformation resistance of the ring 1 is further obtained according to the temperature of the ring 1. The outer diameter of the ring 1 after the size change is located on the position of the conical roller 3, the maximum position of the outer diameter of the ring 1 on the conical roller 3, and the effective rolling area of the ring 1 on the conical roller 3 is fitted, so that the position of the ring 1 on the conical roller 3 in the axial rolling process is obtained. Due to the change of the ring 1 after the axial rolling, the ring 1 applies different pressures to the rolling table 2, causing the rolling table 2 to drop, so the height difference between the rolling table 2 and the upper generatrix 303 of the lower conical roller needs to be detected. Further, the ring 1 can expand to the inside and outside in the axial rolling, the wall thickness of the ring 1 is increased, and the increase of the wall thickness increases the friction between the ring 1 and the core roller 15 and the main roller 16, so the radial feeding speed changes, and the radial feeding speed needs to be detected to improve the accuracy of the height adjustment of the rolling table 2. Due to the deformation of the ring 1 in the rolling process, the rolling parameters change, and the sinking deformation amount of the lower conical roller 302 also changes, so the maximum sinking deformation amount of the lower conical roller 302 needs to be detected. The related parameters of the ring 1 in the rolling process are detected in the embodiment to improve the accuracy of the height adjustment of the rolling table 2 and ensure the stable rolling and forming of the ring 1.

[0055] In the embodiment, the diameters of the main roller 16 and the core roller 15 are fixed amounts. The wall thickness of the ring 1, the outer diameter of the ring 1, the inner diameter of the ring 1, the length L1 of the position of the outer diameter of the ring 1 on the conical roller 3 from the tip surface of the conical roller 3, the maximum length L2 of the position of the outer diameter of the ring 1 on the conical roller 3 from the tip surface of the conical roller 3, the effective rolling width of the ring 1 on the conical roller 3 between L1 and L2, the relative position of the rolling table 2 and the lower conical roller 302, that is, the distance between the rolling table 2 and the upper generatrix 303 of the lower conical roller, the radial feeding speed, the axial feeding speed, the rolling line speed, and the rated axial rolling force of the ring rolling machine are all variables. The deformation resistance and the maximum sinking deformation amount of the lower conical roller 302 are empirical values.

[0056] According to one embodiment of the present application, as shown in Figures 1-4 The calculation method for adjusting the height Z of the rolling table 2 in real time is as follows:

[0057]

[0058] Wherein, H is the thick wall of the ring 1, B is the height of the ring 1, D is the outer diameter of the ring 1, d is the inner diameter of the ring 1, L is the position of the outer diameter of the ring 1 on the taper roller 3, L 随动点 is the maximum position of the ring 1 on the taper roller 3, L 有效区域 is the effective rolling area of the ring 1 on the taper roller 3, Z0 is the height difference between the rolling table 2 and the upper generatrix 303 of the lower taper roller, σ is the deformation resistance of the ring 1 under the rolling temperature change, D1 is the diameter of the main roller 16, D2 is the diameter of the core roller 15, V H is the radial feeding speed, V r is the rolling linear speed, V B is the axial feeding speed, Z MAX is the maximum sinking deformation of the lower taper roller 302, P 额定轴向轧制力 is the rated axial rolling force of the ring rolling machine.

[0059] In the embodiment, the required adjustment height of the rolling table 2 can be calculated according to the formula of the embodiment by fitting the detected parameters of the axial rolling of the ring 1.

[0060] In some embodiments, the height of the rolling table 2 can be adjusted accordingly according to the sinking distance of the lower taper roller 302, so as to ensure that the table surface of the rolling table 2 and the upper generatrix 303 of the lower taper roller are in the same horizontal plane.

[0061] In some embodiments, when the table surface of the rolling table 2 and the upper generatrix 303 of the lower taper roller are not in the same horizontal plane due to the wear degree of the table surface of the rolling table 2, the height of the rolling table 2 can be adjusted adaptively so that the table surface of the rolling table 2 and the upper generatrix 303 of the lower taper roller are in the same horizontal plane, thereby ensuring the stability of the ring 1 placed on the rolling table 2 during the rolling process.

[0062] In some embodiments, the height of the rolling table 2 can be adjusted in advance according to the initial size of the ring 1, i.e. the size of the ring 1 before rolling, because different sizes of the ring 1 exert different forces on the rolling table 2, resulting in different reference lines of the rolling table 2, so that when the ring 1 is placed on the rolling table 2, the height of the rolling table 2 can be adjusted to ensure that the table surface of the rolling table 2 and the upper generatrix 303 of the lower taper roller are in the same horizontal plane during the rolling process of the ring 1.

[0063] According to one embodiment of the present application, as Figures 1-4 shown in the figure, based on the fact that the table surface of the rolling table 1 and the upper generatrix 303 of the lower taper roller are in the same horizontal plane, the height of the table surface of the first rolling table 201 located on the outlet side of the ring is adjusted to be higher than the height of the table surface of the second rolling table 202 located on the inlet side of the ring.

[0064] In the embodiment, since the radial rolling of the ring 1 in the rolling process causes the spread effect of the ring 1 in the height direction, that is, the ring 1 expands to the upper and lower sides, thereby increasing the height of the ring 1, the height deviation of the ring 1 causes the inclination of the ring 1 in the horizontal direction, thereby causing the warping of the ring 1. Therefore, after the table surface of the whole rolling table 2 and the generatrix 303 on the lower cone roller are adjusted to be in the same horizontal plane, the height of the first rolling table 201 located on the outlet side of the ring is adjusted to be higher than the height of the second rolling table 202 located on the inlet side of the ring, thereby ensuring the flatness of the ring 1 in the horizontal direction and further increasing the accuracy of the stable forming of the rolling of the ring 1.

[0065] According to one embodiment of the present application, as shown in Figures 1-3 and Figure 5 , the height difference T between the first rolling table 201 located on the outlet side of the ring and the second rolling table 202 located on the inlet side of the ring has the following calculation method: 出-入

[0066]

[0067] wherein, ɑ is an empirical value, generally 3.5-5.5, σ is the deformation resistance of the ring 1 under the rolling temperature change, H is the wall thickness of the ring 1, B is the height of the ring 1, π is 3.14, D1 is the diameter of the main roller 16, D2 is the diameter of the core roller 15, D is the outer diameter of the ring 1, d is the inner diameter of the ring 1, V H is the radial feeding speed, V r is the rolling linear speed.

[0068] In the embodiment, when the ring 1 is radially rolled in the rolling process, the surfaces of the inner and outer sides of the ring 1 are worn, the inner side of the ring 1 is subjected to the pressure applied by the core roller 15, the outer side of the ring 1 is subjected to the pressure applied by the main roller 16, the ring 1 expands to the upper and lower sides, thereby causing the changes of the inner and outer diameters, the wall thickness and the height of the ring 1. Therefore, the inner and outer diameters, the wall thickness and the height of the ring 1 need to be detected. The rolling temperature of the ring 1 in the radial rolling process also affects the deformation resistance of the ring 1. Further, the deformation resistance of the ring 1 is obtained according to the temperature of the ring 1. Further, since the radially rolled ring 1 can expand to the upper and lower sides, the height of the ring 1 is increased. The related parameters of the longitudinal rolling of the ring 1 are detected by the embodiment, so as to improve the accuracy of the height difference between the two rolling tables 2 and ensure the stable forming of the rolling of the ring 1.

[0069] The height difference between the first rolling table 201 located on the outlet side of the ring and the second rolling table 202 located on the inlet side of the ring is calculated according to the formula of the embodiment by fitting the detected parameters of the radial rolling of the ring 1.

[0070] ​In this invention, the height adjustment of the rolling table 2 is carried out in two steps. First, the table surface of the rolling table 2 is adjusted to be at the same level as the upper generatrix 303 of the lower cone roll. The rolling table 2 adjusted in the first step is a whole rolling table 2. The second step adjusts the height difference between the first rolling table 201 and the second rolling table 202.

[0071] First, the axial rolling condition of ring 1 is detected. Based on the parameters detected from the axial rolling condition of ring 1, the parameters are fitted to obtain the required height adjustment of rolling table 2. The height of rolling table 2 is then adjusted while ring 1 is being rolled, completing the first height adjustment of rolling table 2. Next, the radial rolling condition of ring 1 is detected. Based on the parameters detected from the radial rolling condition of ring 1, the parameters are fitted to obtain the height difference between the first rolling table 201 and the second rolling table 202, completing the second height adjustment of rolling table 2.

[0072] As the ring 1 undergoes axial rolling during the rolling process, it is in a state of continuous deformation, resulting in the ring 1 appearing at different positions on the tapered roll 3. This causes the upper tapered roll 301 and the lower tapered roll 302 to deflect, causing the lower tapered roll 302 to sink. By detecting the axial rolling condition of the ring 1, the rolling table 2 is adjusted for the first time to ensure that the table surface of the rolling table 2 is on the same horizontal plane as the upper generatrix 303 of the lower tapered roll. This ensures the flatness of the ring 1 placed on the rolling table 2 and the positional coordination between the rolling table 2 and the upper generatrix 303 of the lower tapered roll, increasing the stability of the ring 1 during the rolling process and thus improving the accuracy of the stable forming of the ring 1. Because radial rolling of ring 1 causes a widening effect in the height direction of ring 1, it is necessary to adjust the height difference between the first rolling table 201 and the second rolling table 202. Furthermore, the increase in ring 1 height will deviate at the inner and outer diameter edges of ring 1 due to the different bite amounts of the main roll 16 and the core roll 15. If the two rolling tables 2 are kept on the same horizontal plane, the height deviation of ring 1 will cause it to tilt horizontally, resulting in warping. Therefore, by detecting the radial rolling of ring 1 during the rolling process, a second height adjustment of the rolling table 2 is performed to adjust the height difference between the two rolling tables 2, thereby ensuring the flatness of ring 1 in the horizontal direction. Through the method of adjusting the height of the rolling table 2 in this invention, during the manufacturing process, the rolling table 2 can be adjusted during the rolling of ring 1 by the cooperation of the moving wedge 4 and the fixed wedge 5, without stopping the machine to adjust the height of the rolling table 2. This allows the rolling table 2 to automatically adjust its height in response to the rolling conditions of ring 1, increasing work efficiency, reducing the labor intensity of workers, and greatly reducing production costs. Furthermore, by adjusting the height of the rolling table 2 twice during the production process according to the combination of axial and radial rolling of the ring 1, the ring 1 can be rolled and formed stably, thereby improving the accuracy of the ring 1.

[0073] In a second aspect, as shown in the drawings, the present application provides a device for performing the above-mentioned method for rolling and stabilizing forming of a servo ring, comprising a rolling table 2, a moving wedge 4, a fixed wedge 5, a displacement sensor 6, a fixed base 10, a laser measuring instrument and a driver 7. Figures 1-5 The moving wedge 4 is located below the rolling table 2, and the moving wedge 4 is connected with the driver 7. The fixed wedge 5 is fixedly connected with the rolling table 2, and the moving wedge 4 abuts against the fixed wedge 5. The displacement sensor 6 is arranged on the driver 7.

[0074] The driver 7 can drive the moving wedge 4 to move relative to the fixed wedge 5, and at the same time, the moving wedge 4 drives the fixed wedge 5 to rise and fall.

[0075] The laser measuring instrument is used to obtain the real-time rolling condition of the ring 1.

[0076] The rolling table 2 is used to place the ring 1, and the rolling table 2 is arranged on both sides of the main roller 16 and the core roller 15. With the plane where the axes of the main roller 16 and the core roller 15 are located as a boundary surface, along the direction of rotation of the ring 1, the rolling table 2 on the side where the ring 1 constantly approaches the main roller 16 and the core roller 15 is the second rolling table 202 on the ring entrance side, and the rolling table 2 on the side where the ring 1 constantly moves away from the main roller 16 and the core roller 15 is the first rolling table 201 on the ring exit side.

[0077] The displacement sensor 6 feeds back the position of the moving wedge 4 to the driver 7, and the driver 7 can drive the moving wedge 4 to move to a preset position relative to the fixed wedge 5.

[0078] The fixed base 10 is located below the rolling table 2, and the driver 7 is fixedly connected with the fixed base 10. The moving wedge 4 is located at the end face of the fixed base 10, and the driver 7 drives the moving wedge 4 to move on the fixed base 10 relative to the fixed wedge 5.

[0079]

[0080] ​When the embodiment is implemented, the rolling stations 2 are arranged on both sides of the main roller 16 and the core roller 15, and the rolling stations 2 on one side of the main roller 16 and the core roller 15 are the second rolling stations 202 on the ring piece entry side, and the rolling stations 2 on the other side of the main roller 16 and the core roller 15 are the first rolling stations 201 on the ring piece exit side, with the plane where the axes of the main roller 16 and the core roller 15 are located as the boundary surface, along the direction of rotation of the ring piece 1. The moving wedge 4 and the fixed wedge 5 are arranged between the rolling stations 2 and the fixed base 10 on each side. The fixed wedge 5 is fixedly connected with the rolling station 2, the moving wedge 4 abuts against the fixed wedge 5, and the moving wedge 4 can slide relative to the fixed wedge 5. The moving wedge 4 can move relative to the fixed wedge 5 on the fixed base 10 in the first direction or the second direction. In the process of sliding of the moving wedge 4 relative to the fixed wedge 5, the moving wedge 4 can drive the fixed wedge 5 to rise or fall. Since the fixed wedge 5 is fixedly connected with the rolling station 2, the fixed wedge 5 drives the rolling station 2 to rise or fall. The moving wedge 4 is connected with the output end of the driver 7, and the moving wedge 4 slides relative to the fixed wedge 5 by being driven by the driver 7. The laser measuring instrument detects the real-time rolling condition of the ring piece 1, so as to obtain the height at which the rolling station 2 needs to be adjusted according to the rolling condition of the ring piece 1. The displacement sensor 6 is installed on the driver 7, and the displacement sensor 6 is electrically connected with the driver 7. The position of the moving wedge 4 is obtained by the displacement sensor 6, so that the displacement sensor 6 feeds back the position of the moving wedge 4 to the driver 7. The driver 7 can drive the moving wedge 4 to slide relative to the fixed wedge 5 on the fixed base 10 to the preset position, that is, the moving wedge 4 slides relative to the fixed wedge 5 until the fixed wedge 5 drives the rolling station 2 to the height at which the rolling station 2 needs to be adjusted, and then the moving wedge 4 stops sliding.

[0081] Specifically, the laser measuring instrument detects the height of the ring piece 1, the outer diameter of the ring piece 1, the inner diameter of the ring piece 1, the length L1 of the position of the outer diameter of the ring piece 1 on the taper roller 3 to the tip surface of the taper roller 3, the maximum length L2 of the position of the outer diameter of the ring piece 1 on the taper roller 3 to the tip surface of the taper roller 3, the effective rolling width of the ring piece 2 between L1 and L2 on the taper roller 3, and the distance between the rolling station 2 and the generatrix 303 of the lower taper roller during the rolling process of the ring piece 1.

[0082] The displacement sensor 6 detects the distance of the thick wall of the ring piece 1, the movement of the core roller 15, and the height of the movement of the rolling station 2.

[0083] The parameters obtained by detection are used for fitting calculation to obtain the height at which the rolling station 2 needs to be adjusted, and further calculation is performed to obtain the height difference between the first rolling station 201 and the second rolling station 202.

[0084] Firstly, based on the height that the rolling table 2 should be adjusted, the displacement sensor 6 feeds the position information of the moving wedge 4 to the driver 7, and the driver 7 drives the moving wedge 4 to slide relative to the fixed wedge 5, so as to adjust the height of the rolling table 2 to the preset height, and make the table surface of the rolling table 2 and the lower bus 303 on the lower cone roller be in the same horizontal plane.

[0085] Then, based on the height difference between the first rolling table 201 and the second rolling table 202, the height of the first rolling table 201 is adjusted, and the method for adjusting the height of the rolling table 2 is consistent with the method based on the height that the rolling table 2 should be adjusted, except that only the height of the first rolling table 201 is adjusted, so that the height difference between the first rolling table 201 and the second rolling table 202 reaches the preset value.

[0086] In the embodiment, the contact surfaces between the moving wedge 4 and the fixed wedge 5 are all inclined contact surfaces, the first inclined surface of the moving wedge 4 and the second inclined surface of the fixed wedge 5 are opposite in the direction of inclination, and the first inclined surface and the second inclined surface are matched, so that the moving wedge 4 drives the fixed wedge 5 to rise or fall in the process of sliding relative to the fixed wedge 5. Specifically, the first inclined surface is inclined towards the direction close to the fixed wedge 5, the second inclined surface is inclined towards the direction close to the moving wedge 4, and the directions of inclination of the first inclined surface and the second inclined surface are opposite; in the process that the first moving wedge 4 slides relative to the fixed wedge 5 towards the first direction, the contact area of the first inclined surface and the second inclined surface changes as small-large-small, and the moving wedge 4 drives the fixed wedge 5 to rise; in the process that the first moving wedge 4 slides relative to the fixed wedge 5 towards the second direction, the contact area of the first inclined surface and the second inclined surface changes as small-large-small, and the moving wedge 4 drives the fixed wedge 5 to fall. Or, in the process that the first moving wedge 4 slides relative to the fixed wedge 5 towards the second direction, the contact area of the first inclined surface and the second inclined surface changes as small-large-small, and the moving wedge 4 drives the fixed wedge 5 to rise; in the process that the first moving wedge 4 slides relative to the fixed wedge 5 towards the first direction, the contact area of the first inclined surface and the second inclined surface changes as small-large-small, and the moving wedge 4 drives the fixed wedge 5 to fall. Thus, the rising and falling operations of the fixed wedge 5 realize the adjustment of the height of the rolling table 2.

[0087] Through the structural arrangement of the embodiment, the height of the rolling table 2 can be adjusted in real time in the process of rolling the ring piece 1, so that the height of the rolling table 2 can be automatically adjusted to adapt to the rolling situation of the ring piece 1, the working efficiency of the ring piece 1 rolling is increased, the working strength is reduced, and thus the production cost of the ring piece 1 is greatly reduced.

[0088] Through the structural arrangement of the embodiment, the height adjustment error of the rolling table 2 is less than 0.15 mm.

[0089] According to one embodiment of the present application, asFigures 1-3 As shown, the fixed base 10 is provided with a horizontal guide plate 11 and a longitudinal guide rod 12. The horizontal guide plate 11 is set on the table surface of the fixed base 10 and is fixedly connected to the fixed base 10. The horizontal guide plate 11 is parallel to the fixed base 10. The longitudinal guide rod 12 is fixedly connected to the fixed base 10 and is perpendicular to the fixed base 10. The rolling table 2 is provided with a guide groove 13 that cooperates with the longitudinal guide rod 12.

[0090] In this embodiment, the horizontal guide plate 11 is provided for the sliding of the moving wedge 4. Furthermore, the contact surface between the horizontal guide plate 11 and the moving wedge 4 is a smooth and flat surface, which reduces the friction generated by the sliding of the moving wedge 4 relative to the horizontal guide plate 11, facilitates the sliding of the moving wedge 4, increases the stability of the height adjustment of the rolling table 2, and reduces the wear of the contact surface between the moving wedge 4 and the horizontal guide plate 11.

[0091] By setting the longitudinal guide rod 12 and the guide groove 13 on the rolling table 2 to cooperate with the longitudinal guide rod 12, when the moving wedge 4 slides relative to the fixed wedge 5, and the fixed wedge 5 drives the rolling table 2 to rise or fall, the rolling table 2 rises or falls along the longitudinal guide rod 12 via the guide groove 13, further improving the stability of the height adjustment of the rolling table 2. Furthermore, the dimensions of the longitudinal guide rod 12 and the guide groove 13 are matched to ensure the stability of the relative movement between the longitudinal guide rod 12 and the guide groove 13.

[0092] In some embodiments, the driver 7 is fixedly connected to the base 10, which increases the stability of the driver 7 during operation.

[0093] In some embodiments, the driver 7 includes, but is not limited to, a motor, a hydraulic cylinder, etc.

[0094] In some embodiments, the actuator 7 and the displacement sensor 6, as well as their wiring, should be properly insulated to prevent pressure loss or sensor damage due to high-temperature corrosion, which could result in the inability to guarantee the height.

[0095] In some embodiments, the two rolling tables 2 are respectively provided with small rolling tables 14 that contact the core roll 15 and the main roll 16. Since the rolling tables 2 near the core roll 15 are prone to wear, replacing a set of rolling tables 2 is costly and takes a long time to disassemble. By adding small rolling tables 14 near the core roll 15 and the main roll 16, the small rolling tables 14 can be easily replaced after wear, thereby reducing production costs.

[0096] According to one embodiment of the present invention, such as Figures 1-3 As shown, the movable wedge 4 is provided with a limiting groove 8, and the fixed wedge 5 is provided with a limiting block 9 that cooperates with the limiting groove 8; or, the movable wedge 4 is provided with a limiting block 9, and the fixed wedge 5 is provided with a limiting groove 8 that cooperates with the limiting block 9.

[0097] When the driver 7 drives the moving wedge 4 to move relative to the fixed wedge 5, the limiting block 9 moves in the limiting slot 8; when the limiting block 9 abuts against the slot wall of the limiting slot 8, the moving wedge 4 stops moving.

[0098] In the present embodiment, through the setting of the limiting block 9 and the limiting slot 8, the height adjustment of the rolling table 2 is prevented from exceeding the preset adjustment height range.

[0099] According to one embodiment of the present application, the length of the limiting slot 8 is 1mm-13mm, to ensure that the height adjustment of the rolling table 2 does not exceed the highest and lowest limits.

[0100] According to one embodiment of the present application, the driver and the displacement sensor are provided with a heat insulation component, to prevent the temperature in the rolling process from corroding the driver and the displacement sensor, causing damage to the driver and the displacement sensor, and affecting the height adjustment of the rolling table 2.

[0101] The foregoing description of the implementation of the present application has been given for the purpose of example and description. The foregoing description is not exhaustive and is not intended to limit the present application to the exact form disclosed, and various modifications and changes according to the above teachings can also be possible or can be derived from the practice of the present application. The selection and description of these embodiments are to illustrate the principles of the present application and its practical application, so that those skilled in the art can utilize the present application in various embodiments and various modifications suitable for the specific use conceived.

Claims

1. A method for stable forming of a servo ring during rolling, characterized in that, The method comprises the following steps: The height of the rolling table is adjusted in response to the change of the ring size, the relative position of the ring and the cone roller, the relative position of the rolling table and the lower cone roller, the change of the rolling condition and the deformation resistance of the ring under the change of the rolling temperature, so that the table surface of the rolling table and the generatrix on the lower cone roller are in the same horizontal plane; The ring size comprises the wall thickness of the ring, the outer diameter of the ring and the inner diameter of the ring; The relative position of the ring and the cone roller comprises the length L1 of the position of the outer diameter of the ring on the cone roller to the tip surface of the cone roller, the maximum length L2 of the position of the outer diameter of the ring on the cone roller to the tip surface of the cone roller and the effective rolling width between L1 and L2 of the ring on the cone roller; The relative position of the rolling table and the lower cone roller is the distance between the rolling table and the generatrix on the lower cone roller; The rolling condition comprises the diameter of the main roller, the diameter of the core roller, the radial feeding speed, the axial feeding speed, the rolling linear speed, the maximum sinking deformation of the lower cone roller and the rated axial rolling force of the ring rolling machine; The height adjustment value of the rolling table is Z, which makes the table surface of the rolling table and the generatrix on the lower cone roller in the same horizontal plane, and Z is calculated according to the following formula: ； Wherein, H is the ring wall thickness, B is the ring height, D is the ring outer diameter, d is the ring inner diameter, L is the length of the ring outer diameter on the taper roller position distance from the taper roller tip surface L1, L 随动点 is the maximum length L2 of the ring outer diameter on the taper roller position distance from the taper roller tip surface, L 有效区域 is the effective rolling width of the ring between L1 and L2 on the taper roller, Z0 is the distance between the generatrix on the rolling table and the lower taper roller, σ is the deformation resistance of the ring under the change of rolling temperature, D1 is the diameter of the main roller, D2 is the diameter of the core roller, V H is the radial feed speed, V r is the rolling line speed, V B is the axial feed speed, Z MAX is the maximum sinking deformation of the lower taper roller, P 额定轴向轧制力 is the rated axial rolling force of the ring rolling machine.

2. A method of roll forming a servo ring member as claimed in claim 1, wherein, Based on the fact that the table surface of the rolling table and the generatrix on the lower cone roller are in the same horizontal plane, the height of the table surface of the first rolling table located on the side of the ring outlet is adjusted to be higher than the height of the table surface of the second rolling table located on the side of the ring inlet.

3. The method of claim 1, wherein the ring is a servo ring.

3. The method of claim 1, wherein the ring is a servo ring. The height of the table surface of the first rolling table higher than the height of the table surface of the second rolling table is Z1, which is calculated according to the following formula: ； Wherein, ɑ is 3.5~5.5, σ is the deformation resistance of the ring under the change of rolling temperature, H is the wall thickness of the ring, B is the height of the ring, π is 3.14, D1 is the diameter of the main roller, D2 is the diameter of the core roller, D is the outer diameter of the ring, d is the inner diameter of the ring, V H is the radial feed speed, V r is the rolling linear speed.

4. An apparatus for performing a ring rolling and stabilizing method as claimed in any one of claims 1-3, characterized in that, The rolling table, the movable wedge block, the fixed wedge block, the fixed base, the displacement sensor and the driver are comprised; The movable wedge block is located below the rolling table, the movable wedge block is connected with the driver, the fixed wedge block is fixedly connected with the rolling table, the movable wedge block abuts against the fixed wedge block, and the displacement sensor is arranged on the driver; The driver can drive the movable wedge block to move relative to the fixed wedge block, and the movable wedge block drives the fixed wedge block to ascend and descend at the same time; The rolling table is used for placing the ring, and the rolling table is arranged on both sides of the main roller and the core roller; taking the plane where the axis of the main roller and the core roller is located as a boundary surface, along the direction in which the ring rotates, the rolling table on the side where the ring constantly approaches the main roller and the core roller is the second rolling table, and the rolling table on the side where the ring constantly moves away from the main roller and the core roller is the first rolling table; The displacement sensor feeds back the position of the movable wedge block to the driver, and the driver can drive the movable wedge block to move to a preset position relative to the fixed wedge block; The fixed base is located below the rolling table, the driver is fixedly connected with the fixed base, the movable wedge block is located at the end face of the fixed base, and the driver drives the movable wedge block to move on the fixed base relative to the fixed wedge block.

5. The apparatus of claim 4, wherein, The movable wedge block is provided with a limiting groove, and the fixed wedge block is provided with a limiting block matched with the limiting groove; or the movable wedge block is provided with a limiting block, and the fixed wedge block is provided with a limiting groove matched with the limiting block. When the driver drives the moving wedge block to move relative to the fixed wedge block, the limiting block moves in the limiting groove; when the limiting block abuts against the groove wall of the limiting groove, the moving wedge block stops moving.

6. The apparatus of claim 5, wherein, The length of the limiting groove is 1mm-13mm.

7. The apparatus of claim 4, wherein, The fixed base is provided with a horizontal guide plate and a longitudinal guide rod, the horizontal guide plate is arranged on the end face of the fixed base and is fixedly connected with the fixed base, the horizontal guide plate is parallel to the fixed base, and the moving wedge block contacts the fixed base through the horizontal guide plate; the longitudinal guide rod is fixedly connected with the fixed base, the longitudinal guide rod is perpendicular to the fixed base, and the rolling table is provided with a guide groove matched with the longitudinal guide rod.

8. The apparatus of claim 4, wherein, The driver and the displacement sensor are provided with a heat insulation assembly.

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