A large vertical spinning machine

Abstract

The present application relates to the field of spinning equipment and provides a large vertical spinning machine, comprising: a machine tool assembly, the machine tool assembly including a processing station and a suspension seat, the processing station being provided with an oil storage chamber for storing oil; a fixture unit, the fixture unit including a main shaft and a rotary drive mechanism, the main shaft being rotatably mounted on the processing station through a bearing mechanism; the main shaft being provided with a fixture seat for fixing a blank, the rotary drive mechanism being transmission-connected to the main shaft for controlling the rotation of the main shaft; a first oil system, the first oil system including a first oil pressure station provided on the suspension seat, the first oil pressure station being connected to a first oil supply pipeline and a first oil extraction pipeline, the first oil supply pipeline being connected to the bearing mechanism at one end away from the first oil pressure station, and the first oil extraction pipeline being connected to the processing station at one end away from the first oil pressure station and communicating with the oil storage chamber. Based on this, lubricating the main shaft of the spinning machine by circulating oil supply can improve the heat dissipation effect of the main shaft and reduce the possibility of failure or damage to the main shaft.

Description

Technical Field

[0001] The present application relates to the field of spinning equipment, and in particular to a large vertical spinning machine. Background Art

[0002] Spinning is a plastic processing method that uses a spinning tool to apply pressure to a rotating blank, causing it to produce continuous local plastic deformation and form the desired hollow rotating part. It is a commonly used process method for manufacturing thin-walled rotating parts. It can complete a variety of forming processes such as drawing, flanging, and closing. As an important branch of plastic processing, it has the advantages of high product manufacturing precision and lightweight, and occupies an important position in the field of metal precision processing technology in aerospace, military industry and other fields.

[0003] The equipment used in the spinning process is called a spinning machine or spinning equipment. According to the bed structure, it is mainly divided into vertical spinning machines and horizontal spinning machines. Among them, the vertical spinning machine can reduce the deflection caused by its own weight and improve the processing accuracy because the direction of gravity of the workpiece is consistent with the direction of the main shaft axis. It is especially suitable for the precision spinning of thin-walled and slender parts.

[0004] When the spinning machine is working, the spindle needs to withstand the combined effects of spinning pressure and cutting torque, so it needs to have sufficient lubrication. In the existing technology, the lubrication method of the spinning machine is usually to regularly apply grease to the rotating connection position between the spindle and the machine tool. However, this method not only requires manual operation, which is time-consuming and labor-intensive, but also causes poor heat dissipation effect of the spindle after the grease is applied to the spindle. The heat generated when the spindle rotates at high speed is difficult to dissipate, which can easily cause spindle failure or damage, and needs to be improved. Summary of the Invention

[0005] Based on this, the present application provides a large vertical spinning machine, which lubricates the main shaft of the spinning machine by circulating oil supply, thereby improving the heat dissipation effect of the main shaft and reducing the possibility of failure or damage to the main shaft.

[0006] The large vertical spinning machine provided in this application adopts the following technical solution:

[0007] A large vertical spinning machine, comprising:

[0008] The machine tool assembly includes a bottom foundation, a processing station fixed to the bottom foundation, and a suspension base mounted on the bottom foundation, wherein the processing station is provided with an oil storage chamber for storing oil;

[0009] The fixture unit includes a main shaft and a rotary drive mechanism. The main shaft is rotatably mounted on the processing station through a bearing mechanism, and the bearing mechanism is partially immersed in the oil in the oil storage chamber. The main shaft is provided with a fixture seat for fixing the blank. The rotary drive mechanism is transmission-connected to the main shaft for controlling the rotation of the main shaft.

[0010] The first oil system includes a first oil pressure station arranged on the suspension seat, and a first cooling module for cooling is provided inside the first oil pressure station; the first oil pressure station is connected to a first oil supply pipeline and a first oil extraction pipeline, and the end of the first oil supply pipeline away from the first oil pressure station is connected to the bearing mechanism, and the end of the first oil extraction pipeline away from the first oil pressure station is connected to the processing station and communicates with the oil storage chamber.

[0011] By adopting the above-mentioned technical solution, when the spinning machine of the present application is in operation, the first oil pressure station transports oil to the oil storage chamber through the first oil extraction pipeline. The oil in the oil storage chamber can lubricate the bearing mechanism to ensure that the main shaft can rotate smoothly at high speed. During this process, the heat generated by the high-speed friction between the main shaft and the bearing mechanism can be transferred to the oil, which has the effect of heat dissipation. In addition, the oil in the oil storage chamber can be returned to the first oil pressure station through the first oil extraction pipeline. After being filtered to remove impurities and cooled by the first cooling module inside the first oil pressure station, the oil is then transported back to the oil storage chamber, which can realize the circulating oil supply in the oil storage chamber. Lubricating the main shaft in this way can improve the heat dissipation effect of the main shaft and reduce the possibility of failure or damage to the main shaft.

[0012] Optionally, the bearing mechanism includes a bearing seat, an upper end cover, a lower end cover, a first bearing group and a second bearing group. The bearing seat is fixed to the processing station by fasteners. The bottom end of the bearing seat is located in the oil storage cavity. The first bearing group is fixedly installed on the inner side of the bearing seat. The upper end cover is fixed to the top end of the bearing seat. The upper end cover is provided with a first oil inlet hole for connecting the first oil delivery pipeline.

[0013] The second bearing group is fixedly installed on the processing station and is located at the bottom of the oil storage chamber; the lower end cover is fixed on the processing station and is located below the second bearing group, the main shaft is sequentially passed through the upper end cover, the first bearing group, the second bearing group and the lower end cover, and a sealing structure is provided between the main shaft and the lower end cover to improve oil leakage.

[0014] By adopting the above-mentioned technical solution, the arrangement of the first bearing group and the second bearing group is conducive to the smooth rotation of the main shaft during high-speed rotation. In this application, the first bearing group is installed on the inner side of the bearing seat. When the main shaft needs to be removed for cleaning or maintenance, the fasteners at the connection position between the bearing seat and the processing station are directly removed. The bearing seat and the first bearing group can be removed from the processing station together, which can also facilitate the maintenance and replacement of each bearing in the first bearing group to ensure the normal operation of the spinning machine.

[0015] Optionally, the sealing structure includes a side stop seat fixed to the outer peripheral side of the main shaft, a sealing ring arranged between the side stop seat and the main shaft, and a sealing ring strip installed between the side stop seat and the lower end cover. The side stop seat and the main shaft are key-connected, and the side stop seat rests against the bottom of the second bearing group.

[0016] By adopting the above-mentioned technical solution, the provision of a sealing ring can improve the sealing effect between the side block and the main shaft, while the provision of a sealing ring strip can improve the sealing effect between the side block and the lower end cover, thereby preventing downward leakage when the oil is stored in the oil storage chamber. In addition, by connecting the side block key to the main shaft, when the main shaft is removed from the bearing seat, the side block can be pressed against the second bearing group through external force, causing the second bearing group to be separated from the processing station, and then the second bearing group can be removed together, which facilitates the maintenance and replacement of each bearing in the second bearing group by the operator, further ensuring the normal operation of the spinning machine.

[0017] Optionally, the processing station is provided with a preset groove for matching and installing the second bearing group, and a partial inner wall of the preset groove is provided with an embedding groove, and a retaining ring plate is provided inside the embedding groove. The retaining ring plate is fixed to the embedding groove by fasteners, and the inner wall of the retaining ring plate is flush with the inner wall of the preset groove; the outer peripheral surface of the second bearing group is partially against the retaining ring plate.

[0018] By adopting the above-mentioned technical solution, when the main shaft needs to be dismantled, first remove the fasteners at the connection position between the retaining ring plate and the processing station, and take the retaining ring plate out of the embedded groove. At this time, the abutment position of the second bearing group and the outer peripheral side is reduced, which can facilitate the side stop seat to abut against the second bearing group and allow the second bearing group to smoothly detach from the preset groove, so as to facilitate the maintenance and replacement of each bearing in the second bearing group.

[0019] Optionally, the sealing ring strip includes a first connecting part, a second connecting part and a third connecting part arranged in sequence, and the first connecting part and the third connecting part are both arranged perpendicular to the second connecting part; the first connecting part is attached to the lower end cover, and the third connecting part is attached to the side block seat, and the first connecting part and the third connecting part are spaced apart and form an oil storage groove, which is opposite to the second bearing group.

[0020] By adopting the above-mentioned technical solution, the oil in the oil storage chamber passes through the second bearing group and lubricates the second bearing group, and then the oil can enter the oil storage tank; the oil in the oil storage tank can generate a force on the first connecting part and the third connecting part under the pressure of the oil above, thereby keeping the first connecting part tightly against the lower end cover and the third connecting part tightly against the side block, achieving a good sealing effect. In addition, if the spinning machine is operating and the main shaft rotates at high speed, the third connecting part is deformed in the direction close to the first connecting part under the force, the oil inside the oil storage tank can be squeezed upward, thereby also providing auxiliary lubrication for the second bearing group, and the flow of oil is conducive to enhancing the heat dissipation effect of the main shaft, reducing the possibility of failure or damage to the main shaft.

[0021] Optionally, a deformation notch is provided at the bottom of the third connecting portion for the third connecting portion to deform inwardly under pressure.

[0022] By adopting the above-mentioned technical solution, by pre-setting a deformation notch at the bottom of the third connection part, the bottom of the third connection part is more likely to deform toward the direction close to the first connection part when the third connection part is against the side stop seat. Through the lever principle, the top of the third connection part can be deformed toward the direction close to the first connection part, thereby keeping the third connection part tightly against the side stop seat, further improving the sealing effect between the third connection part and the side stop seat.

[0023] Optionally, the thickness of the top of the third connecting portion is greater than the thickness of the bottom of the third connecting portion.

[0024] By adopting the above-mentioned technical solution, by making the thickness of the top of the third connecting part greater than the thickness of the bottom of the third connecting part, the structural strength of the top of the third connecting part is greater, which can reduce the possibility of the third connecting part deforming toward the direction close to the first connecting part when the main shaft rotates at high speed and the third connecting part is subjected to force, thereby ensuring the close contact between the third connecting part and the side stop seat.

[0025] Optionally, a reinforcing ring protrusion is provided on a side of the third connecting portion close to the first connecting portion for enhancing the supporting strength of the third connecting portion.

[0026] By adopting the above-mentioned technical solution, the setting of the reinforced annular bulge is also used to enhance the structural strength of the third connecting part, which can reduce the possibility of local bending of the third connecting part when the third connecting part is subjected to oil pressure, and further ensure the close contact between the third connecting part and the side stop seat.

[0027] Optional, large vertical spinning machine also includes:

[0028] The spinning unit includes a lifting seat vertically slidably mounted on the suspension beam seat, a spinning shaft rotatably connected to the lifting seat, and a spinning wheel rotatably connected to the bottom end of the spinning shaft. The top end of the spinning shaft is connected to a power assembly for rotating it. A cavity is provided between the spinning shaft and the lifting seat, and a third bearing group is installed inside the cavity. A second oil inlet is provided at the top of the cavity, and a second oil outlet is provided at the bottom of the cavity.

[0029] The second oil system includes a second oil pressure station arranged on the suspension seat, and a second cooling module is provided inside the second oil pressure station; the second oil pressure station is connected to a second oil supply pipeline and a second oil extraction pipeline, and the end of the second oil supply pipeline away from the second oil pressure station is connected to the second oil inlet hole, and the end of the second oil extraction pipeline away from the second oil pressure station is connected to the second oil outlet hole.

[0030] By adopting the above-mentioned technical solution, when the spinning machine is in operation, the second oil pressure station transports oil into the mold cavity through the second oil delivery pipeline, and the oil can lubricate the third bearing group to ensure that the spinning shaft can rotate smoothly at high speed; the heat generated by the high-speed rotation of the spinning shaft is transferred to the oil, and the oil can return to the second oil pressure station through the second oil extraction pipeline. After filtering to remove impurities and cooling through the second cooling module, the oil is re-delivered to the mold cavity, which can realize circulating oil supply, improve the heat dissipation effect of the spinning shaft, and reduce the possibility of failure or damage of the spinning shaft.

[0031] Optionally, a one-way bearing is installed between the spinning wheel and the spinning shaft.

[0032] By adopting the above-mentioned technical solution, by installing a one-way bearing between the spinning wheel and the spinning shaft, when the spinning wheel moves downward and eventually forces the blank to deform downward and abut against the fixture seat, the power component is stopped. At this time, the spinning wheel can rotate along with the main shaft under the drive of the main shaft, which can save energy and help maintain a good service life of the power component.

[0033] In summary, this application includes at least one of the following beneficial technical effects:

[0034] 1. The oil is delivered to the oil reservoir through the first oil delivery pipeline to lubricate the bearing mechanism and absorb the heat generated by the high-speed friction between the main shaft and the bearing mechanism during high-speed rotation. The oil then returns to the first oil pressure station through the first oil extraction pipeline, achieving oil circulation within the oil reservoir, improving the heat dissipation effect of the main shaft and reducing the possibility of spindle failure or damage.

[0035] 2. By installing the first bearing group inside the bearing seat, when the spindle needs to be removed for cleaning or maintenance, the fasteners connecting the bearing seat and the processing station can be directly removed. The bearing seat and the first bearing group can be removed from the processing station together, which also facilitates the maintenance and replacement of each bearing in the first bearing group, thereby ensuring the normal operation of the spinning machine;

[0036] 3. By setting a sealing ring strip, the oil storage tank formed between the first connecting part and the third connecting part can be used to store oil, and the force generated by the oil on the first connecting part and the third connecting part can keep the first connecting part close to the lower end cover and the third connecting part close to the side block seat, thereby achieving a good sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0038] Figure 2 is a schematic diagram of a half-section structure of the fixture unit and the processing station in this embodiment;

[0039] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0040] Figure 4 Schematic diagram of the cross-section structure of the sealing ring strip in this embodiment;

[0041] Figure 5 It is a schematic diagram of the half-section structure of the spinning unit in this embodiment.

[0042] Explanation of reference numerals: 1, machine tool assembly; 11, bottom foundation; 12, processing station; 121, oil storage chamber; 122, viewing window plate; 123, preset groove; 124, embedded groove; 125, baffle plate; 13, suspension seat;

[0043] 2. Fixture unit; 21. Spindle; 211. Fixture base; 22. Rotary drive mechanism; 23. Second transmission wheel; 3. First oil system; 31. First oil pressure station; 4. Spinning unit; 41. Lifting seat; 411. Cavity; 412. Second oil inlet hole; 413. Second oil outlet hole; 42. Spinning shaft; 43. Spinning wheel; 431. One-way bearing; 44. Linear drive module; 45. Third bearing group; 46. Power assembly;

[0044] 5. Second oil system; 51. Second oil pressure station; 6. Bearing mechanism; 61. Bearing seat; 611. Outer edge; 62. Upper end cover; 621. First oil inlet hole; 63. Lower end cover; 64. First bearing group; 65. Second bearing group; 7. Sealing structure; 71. Side stop seat; 72. Sealing ring; 73. Sealing ring strip; 731. First connecting part; 732. Second connecting part; 733. Third connecting part; 734. Oil storage tank; 735. Deformation notch; 736. Reinforcement ring convex. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0046] The embodiment of the present application discloses a large vertical spinning machine.

[0047] Reference Figure 1 A large vertical spinning machine includes a machine tool assembly 1, a fixture unit 2, a first oil system 3, a spinning unit 4, and a second oil system 5. The machine tool assembly 1 includes a bottom base 11, a processing station 12, and a suspension base 13. The processing station 12 is fixed to the middle of the bottom base 11, and the suspension base is fixed to the bottom base 11 and is located above the processing station 12. In this embodiment, an oil storage chamber 121 for storing oil is defined within the processing station 12, and a visual window panel 122 is detachably fixed to the side of the oil storage chamber 121. The visual window panel 122 allows the oil level in the oil storage chamber 121 to be visually observed.

[0048] Also refer to Figure 2 The fixture unit 2 includes a main shaft 21 and a rotary drive mechanism 22, wherein the main shaft 21 is rotatably mounted on the processing station 12 through a bearing mechanism 6, and the bearing mechanism 6 is partially immersed in the oil in the oil storage chamber 121; the rotary drive mechanism 22 is configured as a high-speed motor, the rotary drive mechanism 22 is fixed to the outside of the processing station 12, and the movable end of the rotary drive mechanism 22 is connected to a first transmission wheel, the bottom end of the main shaft 21 is connected to a second transmission wheel 23 through a fastener, and a transmission belt is commonly sleeved between the first transmission wheel and the second transmission wheel 23, so that the rotary drive mechanism 22 can drive the main shaft 21 to rotate when it is running, so as to realize the transmission connection between the rotary drive mechanism 22 and the main shaft 21. A fixture seat 211 for fixing the blank is provided on the top of the main shaft 21, and the shape of the fixture seat 211 can be adaptively selected according to the shape of the workpiece to be obtained.

[0049] Specifically, refer to Figure 2 The bearing mechanism 6 includes a bearing seat 61, an upper end cover 62, a lower end cover 63, a first bearing group 64, and a second bearing group 65. The outer edge of the top end of the bearing seat 61 is provided with an integrally formed outer edge 611, which is fixed to the top of the processing station 12 by fasteners. The bottom end of the bearing seat 61 extends into the oil storage chamber 121. The upper end cover 62 is fixed to the outer edge 611 at the top end of the bearing seat 61, and a coaxial end hole is formed in the middle of the upper end cover 62. The spindle 21 can pass through the end hole and enter the interior of the bearing seat 61. The first bearing group 64 includes several bearing components, which are fixedly mounted on the inner side of the bearing seat 61. The spindle 21 can match and penetrate the inner rings of each bearing component, thereby realizing the rotation setting between the spindle 21 and the bearing seat 61.

[0050] It should be noted that the number of bearing components can be one, two, or more than three, and the appropriate bearing type can be selected according to actual needs, and is not limited to the method provided in this embodiment. Based on this, when the main shaft 21 and the first bearing assembly 64 need to be maintained or replaced, the main shaft 21, the bearing seat 61, and the first bearing assembly 64 can be easily removed from the processing station 12 by removing the fasteners between the second transmission wheel 23 and the main shaft 21, and then removing the fasteners between the outer edge 611 and the processing station 12, so that the first bearing assembly 64 can be easily removed.

[0051] Reference Figure 3The inner bottom wall of the oil storage chamber 121 is provided with a preset groove 123, which is used for positioning and installing the second bearing group 65. The second bearing group 65 also includes a plurality of bearing components. In this embodiment, the second bearing group 65 has one bearing component. However, in other embodiments, the second bearing group 65 may have two bearing components, which are overlapped and embedded in the preset groove 123. The inner peripheral wall of the preset groove 123 is partially provided with an embedding groove 124, and a retaining ring plate 125 is provided inside the embedding groove 124. The retaining ring plate 125 is also fixed to the embedding groove 124 by fasteners. In the fixed state, the inner peripheral wall of the retaining ring plate 125 can remain flush with the inner peripheral wall of the preset groove 123. At this time, some bearing components of the second bearing group 65 can abut against the retaining ring plate 125.

[0052] The lower end cover 63 is fixed to the processing station 12 and is located below the oil storage chamber 121. After the main shaft 21 passes through the upper end cover 62 and the first bearing group 64, it can be sequentially passed through the second bearing group 65 and the lower end cover 63; and a sealing structure 7 is provided between the main shaft 21 and the lower end cover 63 to improve the leakage of oil and ensure the cleanliness of the external environment of the spinning machine.

[0053] Specifically, the sealing structure 7 includes a side stop seat 71, a sealing ring 72 and a sealing ring strip 73. The side stop seat 71 is sleeved on the outer peripheral side of the main shaft 21 and is keyed to the main shaft 21. The outer diameter of the side stop seat 71 is set to be equal to the inner diameter of the lower end cover 63. After the main shaft 21 is installed on the processing station 12, the side stop seat 71 can be matched to be located on the inner side of the lower end cover 63, and the side stop seat 71 can be against the second bearing group 65. Based on this, when the main shaft 21 and various bearing components need to be maintained or replaced, the stop ring plate 125 is first removed from the embedding groove 124, and then the main shaft 21 is forced to move upward by external force. The side stop seat 71 can be against the bearing components of the second bearing group 65 and lift it upward to facilitate operation of the second bearing group 65.

[0054] The sealing ring 72 is embedded in the inner ring of the side block seat 71, which can improve the sealing effect between the side block seat 71 and the main shaft 21 after the side block seat 71 is fixedly mounted on the main shaft 21; the sealing ring strip 73 is embedded between the side block seat 71 and the lower end cover 63, and is used to enhance the sealing performance between the sealing ring strip 73 and the side block seat 71, thereby reducing the possibility of oil inside the oil storage chamber 121 leaking downward to the external environment.

[0055] Reference Figure 4The sealing ring strip 73 includes a first connecting portion 731, a second connecting portion 732, and a third connecting portion 733, which are sequentially arranged and integrally formed. The first connecting portion 731 and the third connecting portion 733 are both perpendicularly arranged on the same side of the second connecting portion 732. The first connecting portion 731 is located at the outer edge of the second connecting portion 732, and the third connecting portion 733 is located at the outer edge of the second connecting portion 732. The first connecting portion 731 and the third connecting portion 733 are spaced apart and form an oil storage groove 734. When the sealing ring strip 73 is embedded between the side block 71 and the lower end cover 63, the first connecting portion 731 can be in contact with the lower end cover 63, and the third connecting portion 733 can be in contact with the side block 71. The oil storage groove 734 can face upward and directly opposite the rolling elements of the second bearing assembly 65, and is used to store oil passing through the second bearing assembly 65.

[0056] The thickness of the top of the third connecting portion 733 in this embodiment is greater than the thickness of the bottom of the third connecting portion 733, which is used to enhance the structural strength of its top, and a reinforcing ring protrusion 736 is provided on the side of the third connecting portion 733 close to the first connecting portion 731. The reinforcing ring protrusion 736 is also located at the top of the third connecting portion 733, which is used to reduce the possibility of the third connecting portion 733 being deformed or locally bent toward the first connecting portion 731 when the sealing ring strip 73 is in use, thereby ensuring close contact between the third connecting portion 733 and the side stop seat 71.

[0057] In addition, a deformation notch 735 is provided at the bottom of the third connection part 733. The setting of the deformation notch 735 makes it easier for the bottom of the third connection part 733 to deform toward the direction close to the first connection part 731. Through the lever principle, the top of the third connection part 733 can be deformed toward the direction away from the first connection part 731, thereby keeping the third connection part 733 tightly against the side block seat 71, further improving the sealing effect between the third connection part 733 and the side block seat 71.

[0058] Back to Figure 1 The first oil system 3 includes a first oil pressure station 31 arranged on the top of the suspension seat 13. The first oil pressure station 31 is provided with a first cooling module for cooling the temperature. The first oil pressure station 31 is connected to the first oil delivery pipeline and the first oil extraction pipeline on the same side. Figure 2 A first oil inlet hole 621 is provided on the top of the upper end cover 62, and one end of the first oil supply pipeline away from the first oil pressure station 31 is connected to the first oil inlet hole 621, which is used to transport the oil to between the main shaft 21 and the bearing seat 61; one end of the first oil extraction pipeline away from the first oil pressure station 31 is connected to the processing station 12 and is connected to the oil storage chamber 121, which is used to pump the oil in the oil storage chamber 121 back to the first oil pressure station 31.

[0059] In addition, a filter component is provided inside the first oil pressure station 31, which can filter the oil pumped back to the first oil pressure station 31 and cool the oil through the first cooling module, thereby lowering the temperature of the oil so that the heat of the main shaft 21 can be smoothly taken away when the oil is transported to the oil storage chamber 121 again, thereby reducing the possibility of failure or damage to the main shaft 21.

[0060] Reference Figure 5 The spinning unit 4 includes a lifting seat 41, a rotating shaft 42, and a spinning wheel 43. The lifting seat 41 is vertically slidably mounted on the suspension seat 13, and a linear drive module 44 is fixed to the top of the suspension seat 13. The lifting seat 41 is connected to the movable end of the linear drive module 44 to drive the lifting seat 41 to move up and down. A cavity 411 is provided on the inner side of the lifting seat 41, and a third bearing group 45 is installed inside the cavity 411. The third bearing group 45 includes multiple bearing components. The spinning shaft 42 is arranged at an angle and penetrates each bearing component of the third bearing group 45, so that the spinning shaft 42 is rotatably mounted on the lifting seat 41. A power assembly 46 is connected to the top of the spinning shaft 42, which can drive the spinning shaft 42 to rotate around its own central axis.

[0061] Back to Figure 1 The second oil system 5 includes a second oil pressure station 51 disposed on top of the suspension mount 13. A second cooling module is provided within the second oil pressure station 51 for reducing the oil temperature. A second oil supply pipeline and a second oil extraction pipeline are connected to the same side of the second oil pressure station 51. A second oil inlet 412 is provided at the top of the cavity 411, and a second oil outlet 413 is provided at the bottom of the cavity 411. The end of the second oil supply pipeline away from the second oil pressure station 51 is connected to the second oil inlet 412, while the end of the second oil extraction pipeline away from the second oil pressure station 51 is connected to the second oil outlet 413. As a result, oil can circulate between the cavity 411 and the second oil pressure station 51, lubricating the third bearing assembly 45 while also helping to reduce the temperature of the spinning shaft 42.

[0062] The spinning wheel 43 is rotatably sleeved on the bottom end away from the spinning shaft 42, and a one-way bearing 431 is provided between the spinning wheel 43 and the spinning shaft 42; when the spinning machine is in operation, the linear drive module 44 drives the lifting seat 41 to gradually move downward, and the power component 46 rotates with the spinning shaft 42. At this time, the rotation permission direction of the one-way bearing 431 is the same as the rotation direction of the spinning shaft 42, and the spinning wheel 43 can rotate with the spinning shaft 42 and gradually abut against the blank for extruding the blank; as the lifting seat 41 gradually moves downward and the spinning wheel 43 approaches the main shaft 21, the power component 46 stops rotating, and the rotation direction of the main shaft 21 is opposite to the rotation permission direction of the one-way bearing 431, so that the main shaft 21 can drive the spinning wheel 43 to rotate around its own central axis when rotating with the blank. Based on this, it can play an energy-saving role, which is conducive to maintaining a good service life of the power mechanism.

[0063] The above are preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A large vertical spinning machine, characterized in that: include: A machine tool assembly (1), comprising a bottom base (11), a processing station (12) fixed to the bottom base (11), and a suspension base (13) mounted on the bottom base (11), wherein an oil storage chamber (121) for storing oil is provided inside the processing station (12); A fixture unit (2), the fixture unit (2) comprising a main shaft (21) and a rotary drive mechanism (22), the main shaft (21) being rotatably mounted on a processing station (12) via a bearing mechanism (6), and the bearing mechanism (6) being partially immersed in oil in an oil storage chamber (121); the main shaft (21) being provided with a fixture seat (211) for fixing a blank, and the rotary drive mechanism (22) being transmission-connected to the main shaft (21) for controlling the rotation of the main shaft (21); A first oil system (3), the first oil system (3) comprising a first oil pressure station (31) arranged on a suspension seat (13), a first cooling module for cooling being provided inside the first oil pressure station (31); the first oil pressure station (31) being connected to a first oil delivery pipeline and a first oil extraction pipeline, one end of the first oil delivery pipeline away from the first oil pressure station (31) being connected to a bearing mechanism (6), and one end of the first oil extraction pipeline away from the first oil pressure station (31) being connected to a processing station (12) and communicating with an oil storage chamber (121); The bearing mechanism (6) comprises a bearing seat (61), an upper end cover (62), a lower end cover (63), a first bearing group (64) and a second bearing group (65); the bearing seat (61) is fixed to the processing station (12) by fasteners; the bottom end of the bearing seat (61) is located in the oil storage chamber (121); the first bearing group (64) is fixedly mounted on the inner side of the bearing seat (61); the upper end cover (62) is fixed to the top end of the bearing seat (61); the upper end cover (62) is provided with a first oil inlet hole (621) for connecting a first oil delivery pipeline; The second bearing group (65) is fixedly mounted on the processing station (12), and the second bearing group (65) is located at the bottom of the oil storage chamber (121); the lower end cover (63) is fixed to the processing station (12) and is located below the second bearing group (65); the main shaft (21) is sequentially passed through the upper end cover (62), the first bearing group (64), the second bearing group (65) and the lower end cover (63); and a sealing structure (7) for improving oil leakage is provided between the main shaft (21) and the lower end cover (63); The sealing structure (7) comprises a side block seat (71) fixed to the outer peripheral side of the main shaft (21), a sealing ring (72) arranged between the side block seat (71) and the main shaft (21), and a sealing ring strip (73) installed between the side block seat (71) and the lower end cover (63); the side block seat (71) and the main shaft (21) are key-connected, and the side block seat (71) abuts against the bottom of the second bearing group (65).

2. The large vertical spinning machine according to claim 1, characterized in that: The processing station (12) is provided with a preset groove (123) for matching and installing the second bearing group (65); the inner peripheral wall of the preset groove (123) is partially provided with an embedding groove (124); a retaining ring plate (125) is provided inside the embedding groove (124); the retaining ring plate (125) is fixed to the embedding groove (124) by fasteners, and the inner peripheral wall of the retaining ring plate (125) is flush with the inner peripheral wall of the preset groove (123); the outer peripheral surface of the second bearing group (65) partially abuts against the retaining ring plate (125).

3. The large vertical spinning machine according to claim 1, characterized in that: The sealing ring strip (73) includes a first connecting portion (731), a second connecting portion (732) and a third connecting portion (733) which are arranged in sequence. The first connecting portion (731) and the third connecting portion (733) are both arranged perpendicular to the second connecting portion (732). The first connecting portion (731) is attached to the lower end cover (63), and the third connecting portion (733) is attached to the side stop seat (71). The first connecting portion (731) and the third connecting portion (733) are spaced apart and form an oil storage groove (734). The oil storage groove (734) is directly opposite to the second bearing group (65).

4. The large vertical spinning machine according to claim 3, characterized in that: The bottom of the third connecting portion (733) is provided with a deformation notch (735) for the third connecting portion (733) to be deformed inwards under pressure.

5. The large vertical spinning machine according to claim 3, characterized in that: The thickness of the top of the third connecting portion (733) is greater than the thickness of the bottom of the third connecting portion (733).

6. The large vertical spinning machine according to claim 3, characterized in that: A reinforcing ring protrusion (736) for enhancing the supporting strength of the third connecting portion (733) is provided on a side surface of the third connecting portion (733) close to the first connecting portion (731).

7. The large vertical spinning machine according to claim 1, characterized in that: Also includes: A spinning unit (4), the spinning unit (4) comprising a lifting seat (41) vertically slidably mounted on a suspension seat (13), a spinning shaft (42) rotatably connected to the lifting seat (41), and a spinning wheel (43) rotatably connected to the bottom end of the spinning shaft (42), the top end of the spinning shaft (42) being connected to a power assembly (46) for rotating the spinning shaft; a cavity (411) being provided between the spinning shaft (42) and the lifting seat (41), a third bearing group (45) being installed inside the cavity (411); a second oil inlet hole (412) being provided at the top of the cavity (411), and a second oil outlet hole (413) being provided at the bottom of the cavity (411); A second oil system (5), the second oil system (5) includes a second oil pressure station (51) arranged on the suspension seat (13), a second cooling module is provided inside the second oil pressure station (51); the second oil pressure station (51) is connected to a second oil delivery pipeline and a second oil extraction pipeline, the end of the second oil delivery pipeline away from the second oil pressure station (51) is connected to the second oil inlet hole (412), and the end of the second oil extraction pipeline away from the second oil pressure station (51) is connected to the second oil outlet hole (413).

8. The large vertical spinning machine according to claim 7, characterized in that: A one-way bearing (431) is installed between the spinning wheel (43) and the spinning shaft (42).

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