A cutting and spinning device

Abstract

The present invention discloses a turning and spinning device, which comprises a base, a rotating table for supporting a blank plate, a rotating mechanism for driving the rotating table, a mandrel arranged above the rotating table, and a first driving mechanism for driving the mandrel to move vertically. A spinning wheel is arranged on one side of the rotating table. The base is provided with a second driving mechanism for driving the spinning wheel to move radially along the blank plate and a third driving mechanism for driving the spinning wheel to move vertically. The turning and spinning device further comprises an extrusion cylinder arranged above the rotating table and a fourth driving mechanism. The extrusion cylinder and the mandrel are coaxially arranged. The rotating table comprises an inner plate rotatably connected to the base, an outer plate sleeved on the outside of the inner plate and axially slidable along the inner plate, and a fixing mechanism for fixing the position of the outer plate. The diameter of the blank plate is larger than the diameter of the inner plate and smaller than the outer diameter of the outer plate. The upper sides of the inner plate and the outer plate are flush. The outer diameter of the extrusion cylinder is equal to the diameter of the inner plate. The present invention can machine an outer cylinder.

Description

Technical Field

[0001] The present invention relates to the technical field of spinning devices, and particularly to a spinning device. Background Art

[0002] The double-cylinder structure has wide applications, such as the flame tube of a turbojet or turbofan engine. The double-cylinder structure includes a bottom plate, an inner cylinder, and an outer cylinder. The existing spinning devices cannot process the outer cylinder. For example, the spinning device proposed in "Research on the Spinning Forming Process of Cylindrical Parts with Bottom Flange" in the journal "Aeronautical Manufacturing Technology". The existing spinning device includes a backing plate, a mandrel, and a spinning wheel. During processing, the mandrel presses the blank plate against the backing plate, and then the spinning wheel moves radially along the blank plate and spins the upper side of the blank plate, causing the edge of the blank plate to bifurcate to form a base plate and a flared flange that is large at the top and small at the bottom. When the spinning wheel approaches the mandrel, the spinning wheel moves upward and spins the flared flange, and the flared flange deforms to form an inner cylinder that fits on the outside of the mandrel. The existing spinning device cannot continue to spin the base plate to process the outer cylinder. Summary of the Invention

[0003] In order to solve the problem that the existing spinning device cannot process the outer cylinder, the present invention provides a spinning device that can process the outer cylinder.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A spinning device includes a base, a rotating table for supporting a blank plate, a rotating mechanism for driving the rotating table, a mandrel disposed above the rotating table, a first driving mechanism for driving the mandrel to move vertically, a spinning wheel disposed on one side of the rotating table, a second driving mechanism disposed on the base for driving the spinning wheel to move radially along the blank plate, and a third driving mechanism for driving the spinning wheel to move vertically. The spinning device further includes an extrusion cylinder disposed above the rotating table and a fourth driving mechanism for driving the extrusion cylinder to move vertically. The extrusion cylinder and the mandrel are coaxially disposed. The rotating table includes an inner plate rotatably connected to the base, an outer plate sleeved on the outside of the inner plate and slidable along the axial direction of the inner plate, and a fixing mechanism for fixing the position of the outer plate. The diameter of the blank plate is greater than the diameter of the inner plate and less than the outer diameter of the outer plate. The upper sides of the inner plate and the outer plate are flush. The outer diameter of the extrusion cylinder is equal to the diameter of the inner plate.

[0006] With the above arrangement, the spinning wheel first spins the blank plate to cause the edge of the blank plate to bifurcate to form a base plate and a flared flange, and then the spinning wheel moves upward and spins the flared flange to form an inner cylinder. When processing the outer cylinder, the outer plate moves downward to expose the lower side of the base plate to the air. After the extrusion cylinder presses the base plate against the inner plate, the spinning wheel moves radially along the blank plate, and the edge of the base plate tilts upward under the action of the spinning wheel. When the spinning wheel approaches the extrusion cylinder, the spinning wheel moves upward and causes the base plate to continue to deform to form an outer cylinder that fits on the outer wall of the extrusion cylinder.

[0007] Further, the spinning wheel includes a first state and a second state. When the spinning wheel is in the first state, the end of the spinning wheel close to the rotating table inclines downward so that the spinning wheel performs cutting and spinning on the upper side of the blank plate to form an inner cylinder; when the spinning wheel is in the second state, the end of the spinning wheel close to the rotating table inclines upward so that the spinning wheel performs spinning on the substrate to form an outer cylinder.

[0008] With the above arrangement, when processing the outer cylinder in this application, there is no need to first process the edge of the substrate. The spinning wheel in the second state can directly move upward to perform spinning on the substrate to form the outer cylinder, thereby improving the processing efficiency of the outer cylinder in this application.

[0009] Further, a lifting table is provided on one side of the rotating table. The third driving mechanism is arranged on the base and connected to the lifting table. A sliding seat is slidably connected to the upper side of the lifting table. The second driving mechanism is arranged on the lifting table and connected to the sliding seat. A wheel frame is provided on the side of the sliding seat close to the rotating table. One end of the wheel frame close to the rotating table is rotatably connected to the spinning wheel. The wheel frame is rotatably connected to the sliding seat so as to switch the state of the spinning wheel by rotating the wheel frame. The sliding seat is provided with a locking mechanism for locking the wheel frame.

[0010] With the above arrangement, it is convenient to switch the state of the spinning wheel, thereby further accelerating the production efficiency of this application.

[0011] Further, the wheel frame includes a rotating seat rotatably connected to the sliding seat and a bracket fixedly connected to the side of the rotating seat close to the rotating table. The spinning wheel is rotatably connected to one end of the bracket close to the rotating table. The locking mechanism includes a positioning ring fixedly connected to the sliding seat and a locking bolt threadedly connected to the positioning ring. The rotating seat is rotatably connected within the positioning ring, and the locking bolt abuts against the rotating seat.

[0012] With the above arrangement, it is convenient to lock the wheel frame.

[0013] Further, a first limiting rod is fixedly connected to the upper side of the positioning ring, and a second limiting rod is fixedly connected to the lower side of the positioning ring. The rotating seat is fixedly connected with a rotating rod. When the rotating rod abuts against the first limiting rod, the spinning wheel is in the first state; when the rotating rod abuts against the second limiting rod, the spinning wheel is in the second state.

[0014] With the above arrangement, when switching the state of the spinning wheel by rotating the wheel frame, it is convenient to position the wheel frame.

[0015] Further, a top plate is provided above the base. The top plate is fixedly connected to the base through a connecting plate. The first driving mechanism is set as a first oil cylinder. The first oil cylinder includes a first cylinder body fixedly connected to the lower side of the top plate, a first piston slidably connected within the first cylinder body, a first piston rod fixedly connected to the lower side of the first piston, and a first oil pump connected to the first cylinder body. The lower end of the first piston rod is rotatably connected to the extrusion cylinder.

[0016] Furthermore, the fourth driving mechanism includes a shell sleeved on the first cylinder body, a first cavity arranged around the first cylinder body is formed between the shell and the first cylinder body, the fourth driving mechanism also includes a second piston slidably connected to the first cavity, a second piston rod fixedly connected to the lower side of the second piston, and a second oil pump connected to the first cavity, the lower end of the second piston rod is fixedly connected to a mounting plate, and the extrusion cylinder is rotatably connected to the lower side of the mounting plate.

[0017] Furthermore, a rotating plate is arranged between the mounting plate and the extrusion cylinder, and both the rotating plate and the mounting plate are annular, the first piston rod passes through the rotating plate and the mounting plate, the rotating plate and the extrusion cylinder are detachably connected, the inner side of the rotating plate is fixedly connected with a guide ring extending upward, the upper side of the guide ring is fixedly connected with a limiting protrusion extending outward, the inner side of the mounting plate is arranged between the limiting protrusion and the rotating plate, a rolling bearing is arranged between the mounting plate and the guide ring, a thrust bearing is arranged between the limiting protrusion and the mounting plate, and a thrust bearing is arranged between the mounting plate and the rotating plate.

[0018] Through the above arrangement, the rotation stability of the extrusion cylinder is increased, and the rotation resistance of the extrusion cylinder is also reduced.

[0019] Furthermore, the rotating mechanism includes an output seat rotatably connected to the base, the inner plate is arranged on the upper side of the output seat and fixedly connected to the output seat through a connecting column, the rotating mechanism also includes a driven wheel fixedly connected to the output seat, a motor arranged on the lower side of the base, and a driving wheel connected to the motor, the driving wheel is connected to the driven wheel through a belt transmission, and the radius of the driving wheel is smaller than the radius of the driven wheel.

[0020] Through the above arrangement, the force output by the output seat becomes larger.

[0021] Furthermore, the upper end of the extrusion cylinder is fixedly connected to an end plate, the end plate and the rotating plate are detachably connected, the first piston rod passes through the end plate and is sealed with the end plate, an O-ring is arranged between the first piston rod and the end plate, a first air channel is arranged on the end plate and passes through the upper and lower sides of the end plate, the lower end of the first air channel extends to the inner side of the extrusion cylinder, the first air channel is provided with a one-way valve facing the inner side of the extrusion cylinder, the fixing mechanism includes a sliding sleeve arranged on the connecting column, a fixing bolt threadedly connected to the sliding sleeve, the fixing bolt abuts against the connecting column, and the upper side of the inner plate A plurality of adsorption grooves are provided, a second air channel is provided in the connecting column, the upper end of the second air channel is connected with the adsorption groove, a second cavity is provided on the inner side of the output seat, a third piston is slidably connected in the second cavity, the third piston divides the second cavity into an upper chamber located on the upper side of the third piston and a lower chamber located on the lower side of the third piston, the upper chamber is connected with the second air channel, the lower chamber is connected with the atmosphere, a spring for applying an upward force to the third piston is provided in the lower chamber, a connecting rod is fixedly connected to the upper side of the third piston, and the upper end of the connecting rod abuts against the sliding sleeve.

[0022] With the above settings, after the inner cylinder is processed, when the extrusion cylinder presses the substrate against the inner plate, it is convenient to pull out the mandrel from the inner cylinder. When the outer cylinder is processed, the outer plate moves downward and causes the third piston to move downward. The third piston pumps out the air in the adsorption groove, and the adsorption groove sucks the blank plate. After the outer cylinder is processed, the first piston rod moves downward to increase the air pressure in the extrusion cylinder, making it easier to pull out the extrusion cylinder from the outer cylinder, thereby improving the demolding efficiency of this application. Description of the Drawings

[0023] Figure 1 Schematic diagram of the cutting and spinning device for the embodiment.

[0024] Figure 2 is Figure 1 enlarged view of part A of

[0025] Figure 3 Schematic diagram of the spinning wheel cutting and spinning the blank plate.

[0026] Figure 4 Schematic diagram of the spinning wheel spinning and pressing the flared flange to process the inner cylinder.

[0027] Figure 5 Schematic diagram of the spinning wheel processing the substrate.

[0028] Figure 6 Schematic diagram of the spinning wheel processing the outer cylinder.

[0029] Figure 7 Schematic diagram of the spinning wheel in the second state moving to the lower side of the substrate.

[0030] Figure 8 Schematic diagram of the spinning wheel processing the outer cylinder in the second state.

[0031] Figure 9 Schematic diagram of the extrusion cylinder being pulled out of the outer cylinder. Detailed Description of the Invention

[0032] The technical solutions of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0033] See Figures 1 to 9, A rotary cutting device, comprising a base 11, a rotating table 12 for supporting a blank plate 21, a rotating mechanism 13 for driving the rotating table 12, a mandrel 14 arranged above the rotating table 12, and a first driving mechanism for driving the mandrel 14 to move vertically. A spinning wheel 16 is arranged on one side of the rotating table 12. The base 11 is provided with a second driving mechanism 17 for driving the spinning wheel 16 to move radially along the blank plate 21 and a third driving mechanism 18 for driving the spinning wheel 16 to move vertically. The rotary cutting device further comprises an extrusion cylinder 19 arranged above the rotating table 12 and a fourth driving mechanism for driving the extrusion cylinder 19 to move vertically. The extrusion cylinder 19 and the mandrel 14 are coaxially arranged. The rotating table 12 comprises an inner plate 121 rotatably connected to the base 11, an outer plate 122 sleeved outside the inner plate 121 and slidable axially along the inner plate 121, and a fixing mechanism 123 for fixing the position of the outer plate 122. The diameter of the blank plate 21 is larger than the diameter of the inner plate 121 and smaller than the outer diameter of the outer plate 122. The upper sides of the inner plate 121 and the outer plate 122 are flush. The outer diameter of the extrusion cylinder 19 is equal to the diameter of the inner plate 121.

[0034] With the above settings, the spinning wheel 16 first rotary cuts the blank plate 21, causing the edge of the blank plate 21 to bifurcate to form a base plate 22 and a flared flange 23. Then the spinning wheel 16 moves upward and spin-presses the flared flange 23 to form an inner cylinder. When processing the outer cylinder, the outer plate 122 moves downward to expose the lower side of the base plate 22 to the air. After the extrusion cylinder 19 presses the base plate 22 against the inner plate 121, the spinning wheel 16 moves radially along the blank plate 21. Under the action of the spinning wheel 16, the edge of the base plate 22 tilts upward. When the spinning wheel 16 approaches the extrusion cylinder 19, the spinning wheel 16 moves upward and causes the base plate 22 to continue to deform to form an outer cylinder that fits against the outer wall of the extrusion cylinder 19.

[0035] Specifically, the spinning wheel 16 in this application refers to the spinning wheel 16 in the prior art. During use, the inner cylinder is processed first and then the outer cylinder. When processing the inner cylinder, first place the circular blank plate 21 on the rotating table 12. The first driving mechanism drives the mandrel 14 to move downward and presses the blank plate 21 against the rotating table 12. The inner plate 121 and the outer plate 122 support the blank plate 21. The rotating mechanism 13 operates to drive the rotating table 12, the blank plate 21, and the mandrel 14 to rotate synchronously. The second driving mechanism 17 drives the spinning wheel 16 to move radially along the blank plate 21 towards the mandrel 14. When the spinning wheel 16 contacts the edge of the blank plate 21, the blank plate 21 drives the spinning wheel 16 to rotate. As the spinning wheel 16 continues to move, the end of the spinning wheel 16 rotary cuts the blank plate 21, and the edge of the blank plate 21 bifurcates to form a base plate 22 and a flared flange 23. Refer to Figure 3 , when the spinning wheel 16 approaches the mandrel 14, the third driving mechanism 18 drives the spinning wheel 16 to move upward. The spinning wheel 16 spin-presses the flared flange 23, and the flared flange 23 deforms to form an inner cylinder that fits against the outside of the mandrel 14. Refer toFigure 4 ; When machining the outer cylinder, the second driving mechanism 17 drives the spinning wheel 16 away from the mandrel 14, the fixing mechanism 123 releases the outer plate 122, the outer plate 122 moves downward and separates from the base plate 22, the lower side of the base plate 22 is exposed to the air, then the extrusion cylinder 19 moves downward and presses the base plate 22 against the inner plate 121, the third driving mechanism 18 drives the spinning wheel 16 to move downward so that the lower end of the spinning wheel 16 is lower than the lower side of the base plate 22. After the rotating mechanism 13 drives the blank plate 21, the extrusion cylinder 19, and the rotating table 12 to rotate synchronously, the second driving mechanism 17 drives the spinning wheel 16 to approach the base plate 22. When the spinning wheel 16 contacts the base plate 22, the base plate 22 drives the spinning wheel 16 to rotate. As the spinning wheel 16 continues to move forward, the edge of the base plate 22 tilts upward under the action of the spinning wheel 16. When the spinning wheel 16 approaches the extrusion cylinder 19, the third driving mechanism 18 drives the spinning wheel 16 to move upward, and the spinning wheel 16 performs spinning on the deformed base plate 22, so that the base plate 22 continues to deform to form an outer cylinder that fits on the outer wall of the extrusion cylinder 19. See Figure 6 .

[0036] As an implementation manner, the spinning wheel 16 includes a first state and a second state. When the spinning wheel 16 is in the first state, the end of the spinning wheel 16 close to the rotating table 12 tilts downward so that the spinning wheel 16 performs cutting and spinning on the upper side of the blank plate 21 to process and form an inner cylinder; when the spinning wheel 16 is in the second state, the end of the spinning wheel 16 close to the rotating table 12 tilts upward so that the spinning wheel 16 performs spinning on the base plate 22 to process and form an outer cylinder.

[0037] Through the above settings, when machining the outer cylinder in this application, it is not necessary to first machine the edge of the base plate 22. The spinning wheel 16 in the second state can directly move upward to perform spinning on the base plate 22 to form an outer cylinder, thereby improving the efficiency of machining the outer cylinder in this application. In addition, when the spinning wheel is in the first state and machining the blank plate, the upper side of the spinning wheel is worn. When the spinning wheel switches to the second state, the upper and lower sides of the spinning wheel are swapped. When the spinning wheel in the second state performs upward spinning on the base plate, the other side of the spinning wheel is worn. In summary, by switching the state of the spinning wheel to produce a cylindrical structure, both the upper and lower sides of the spinning wheel can be worn, and the wear of the spinning wheel is relatively uniform, thereby improving the service life of the spinning wheel.

[0038] Specifically, when machining the inner cylinder, the spinning wheel 16 is in the first state, which facilitates the lower end of the spinning wheel 16 to cut and spin the blank plate 21. After the edge of the blank plate 21 bifurcates, the flared flange 23 extends obliquely upward along the spinning wheel 16. See Figure 3 , when the spinning wheel 16 approaches the mandrel 14, the spinning wheel 16 moves upward to machine the inner cylinder. See Figure 4。When processing the inner cylinder of the spinning wheel in the first state, the upper side of the spinning wheel is worn. When processing the outer cylinder, after the outer plate 122 moves downward and presses the cylinder 19 to press the substrate 22, the spinning wheel 16 switches to the second state, swapping the upper and lower sides of the spinning wheel. The position of the spinning wheel 16 is adjusted by the second drive mechanism 17 and the third drive mechanism 18, so that the upper end of the spinning wheel 16 is close to the edge of the inner plate 121. See Figure 7 , at this time, after the rotating mechanism 13 drives the blank plate 21, the rotating table 12, and the pressing cylinder 19 to rotate synchronously, the third drive mechanism 18 drives the spinning wheel 16 to move upward, and the spinning wheel 16 spins the substrate 22, deforming the substrate 22 to form an outer cylinder that fits on the outer wall of the pressing cylinder 19. See Figure 8 . When the spinning wheel in the second state spins the substrate upward, the other side of the spinning wheel is worn. In summary, by switching the state of the spinning wheel to produce a cylindrical structure, both the upper and lower sides of the spinning wheel can be worn, and the wear of the spinning wheel is relatively uniform, thereby increasing the service life of the spinning wheel.

[0039] As an implementation method, a lifting table 111 is provided on one side of the rotating table 12. The third drive mechanism 18 is provided on the base 11 and connected to the lifting table 111. A sliding seat 112 is slidably connected to the upper side of the lifting table 111. The second drive mechanism 17 is provided on the lifting table 111 and connected to the sliding seat 112. A wheel frame 113 is provided on the side of the sliding seat 112 close to the rotating table 12. One end of the wheel frame 113 close to the rotating table 12 is rotatably connected to the spinning wheel 16. The wheel frame 113 is rotatably connected to the sliding seat 112, so as to switch the state of the spinning wheel 16 by rotating the wheel frame 113. The sliding seat 112 is provided with a locking mechanism for locking the wheel frame 113.

[0040] With the above settings, it is convenient to switch the state of the spinning wheel 16, thereby further improving the production efficiency of this application.

[0041] Specifically, when the third drive mechanism 18 drives the lifting table 111 to move up and down, the lifting table 111 drives the sliding seat 112, the wheel frame 113, and the spinning wheel 16 to move upward. When the second drive mechanism 17 drives the sliding seat 112 to move along the lifting table 111, the sliding seat 112 drives the wheel frame 113 and the spinning wheel 16 to move radially along the blank plate 21. After the unlocking mechanism is unlocked, the wheel frame 113 can rotate around the horizontal axis. The rotation range of the wheel frame 113 is 180 degrees. The wheel frame 113 drives the spinning wheel 16 to rotate, so that the spinning wheel 16 is in the first state or the second state. After the state is switched, the wheel frame 113 is locked by the locking mechanism. Among them, the second drive mechanism can be set as an oil cylinder, and the third drive mechanism 18 can also be set as an oil cylinder.

[0042] As an implementation, the wheel carrier 113 includes a rotating seat 1131 rotatably connected to the sliding seat 112, a bracket 1132 fixedly connected to the side of the rotating seat 1131 close to the rotating table 12. The spinning wheel 16 is rotatably connected to one end of the bracket 1132 close to the rotating table 12. The locking mechanism includes a positioning ring 1133 fixedly connected to the sliding seat 112, and a locking bolt 1134 threadedly connected to the positioning ring 1133. The rotating seat 1131 is rotatably connected within the positioning ring 1133, and the locking bolt 1134 abuts against the rotating seat 1131.

[0043] With the above arrangement, it is convenient to lock the wheel carrier 113.

[0044] Specifically, the rotating seat 1131 is cylindrical, and the axis of the rotating seat 1131 extends horizontally. The positioning ring 1133 makes the rotation of the rotating seat 1131 more stable. When the locking bolt 1134 is loosened, the locking bolt 1134 disengages from the rotating seat 1131, and the rotating seat 1131 can rotate around its own axis, so as to switch the state of the spinning wheel 16. After adjustment, tightening the locking bolt 1134 can lock the rotating seat 1131.

[0045] As an implementation, a first limiting rod 1135 is fixedly connected to the upper side of the positioning ring 1133, a second limiting rod 1136 is fixedly connected to the lower side of the positioning ring 1133, and a rotating rod 1137 is fixedly connected to the rotating seat 1131. When the rotating rod 1137 abuts against the first limiting rod 1135, the spinning wheel 16 is in the first state; when the rotating rod 1137 abuts against the second limiting rod 1136, the spinning wheel 16 is in the second state.

[0046] With the above arrangement, when switching the state of the spinning wheel 16 by rotating the wheel carrier 113, it is convenient to position the wheel carrier 113.

[0047] As an implementation, a top plate 115 is provided above the base 11. The top plate 115 is fixedly connected to the base 11 through a connecting plate. The first driving mechanism is set as a first oil cylinder. The first oil cylinder includes a first cylinder block 151 fixedly connected to the lower side of the top plate 115, a first piston 152 slidably connected within the first cylinder block 151, a first piston rod 153 fixedly connected to the lower side of the first piston 152, and a first oil pump connected to the first cylinder block 151. The lower end of the first piston rod 153 is rotatably connected to the extrusion cylinder 19.

[0048] The first oil cylinder is filled with hydraulic fluid. When the first oil pump delivers hydraulic fluid to the upper end of the first oil cylinder, the pressure on the upper side of the first piston 152 increases, and the hydraulic fluid on the lower side of the first piston 152 is discharged from the first oil cylinder. The first piston 152 drives the first piston rod 153 and the mandrel 14 to move downward; similarly, when the first oil pump delivers hydraulic fluid to the lower end of the first oil cylinder, the pressure on the lower side of the first piston 152 increases, and the hydraulic fluid on the upper side of the first piston 152 is discharged from the first oil cylinder. The first piston 152 drives the first piston rod 153 and the mandrel 14 to move upward.

[0049] As an implementation manner, the fourth driving mechanism includes a housing 1911 sleeved on the first cylinder block 151. A first cavity is formed between the housing 1911 and the first cylinder block 151 and is arranged around the first cylinder block 151. The fourth driving mechanism further includes a second piston 1912 slidably connected in the first cavity, a second piston rod 1913 fixedly connected to the lower side of the second piston 1912, and a second oil pump communicated with the first cavity. The lower end of the second piston rod 1913 is fixedly connected with a mounting plate 1914, and the extrusion cylinder 19 is rotatably connected to the lower side of the mounting plate 1914.

[0050] The first cavity is filled with hydraulic fluid. When the second oil pump delivers hydraulic fluid to the upper end of the first cavity, the pressure on the upper side of the second piston 1912 increases, and the hydraulic fluid on the lower side of the second piston 1912 is discharged from the first cavity. The second piston 1912 drives the second piston rod 1913, the mounting plate 1914 and the extrusion cylinder 19 to move downward; when the second oil pump delivers hydraulic fluid to the lower end of the first cavity, the pressure on the lower side of the second piston 1912 increases, and the hydraulic fluid on the upper side of the second piston 1912 is discharged from the first cavity. The second piston 1912 drives the second piston rod 1913, the mounting plate 1914 and the extrusion cylinder 19 to move upward.

[0051] As an implementation manner, a rotating plate 1915 is arranged between the mounting plate 1914 and the extrusion cylinder 19. Both the rotating plate 1915 and the mounting plate 1914 are annular. The first piston rod 153 passes through the rotating plate 1915 and the mounting plate 1914. The rotating plate 1915 and the extrusion cylinder 19 are detachably connected. The inner side of the rotating plate 1915 is fixedly connected with an upward-extending guide ring 19151. The upper side of the guide ring 19151 is fixedly connected with an outward-extending limit protrusion 19152. The inner side of the mounting plate 1914 is arranged between the limit protrusion 19152 and the rotating plate 1915. A rolling bearing 19153 is arranged between the mounting plate 1914 and the guide ring 19151. A thrust bearing 19154 is arranged between the limit protrusion 19152 and the mounting plate 1914. A thrust bearing 19154 is arranged between the mounting plate 1914 and the rotating plate 1915.

[0052] Through the above settings, the rotation stability of the extrusion cylinder 19 is increased, and at the same time, the rotation resistance of the extrusion cylinder 19 is made smaller.

[0053] Specifically, when the inner side of the mounting plate 1914 is located between the limiting protrusion 19152 and the rotating plate 1915, it prevents the extrusion cylinder 19 from moving up and down. The inner side of the rolling bearing 19153 is in contact with the guide ring 19151, and the outer side of the rolling bearing 19153 is in contact with the mounting plate 1914, thereby preventing the extrusion cylinder 19 from moving horizontally.

[0054] As an implementation, the rotating mechanism 13 includes an output seat 131 rotatably connected to the base 11. The inner plate 121 is disposed on the upper side of the output seat 131 and fixedly connected to the output seat 131 through a connecting column 132. The rotating mechanism 13 further includes a driven wheel 133 fixedly connected to the output seat 131, a motor 134 disposed on the lower side of the base 11, and a driving wheel 135 connected to the motor 134. The driving wheel 135 is drivingly connected to the driven wheel 133 through a belt 136, and the radius of the driving wheel 135 is smaller than the radius of the driven wheel 133.

[0055] With the above settings, the force output by the output seat 131 becomes larger.

[0056] Specifically, the motor 134 drives the rotating table 12 to rotate through the driving wheel 135, the belt 136, the driven wheel 133, and the output seat 131. When the radius of the driving wheel 135 is smaller than the radius of the driven wheel 133, the output force of the motor 134 can be increased.

[0057] As an implementation manner, a end plate 192 is fixedly connected to the upper end of the extrusion cylinder 19. The end plate 192 and the rotating plate 1915 are detachably connected. The first piston rod 153 passes through the end plate 192 and is hermetically connected to the end plate 192. An O-ring 193 is arranged between the first piston rod 153 and the end plate 192. A first air passage 1921 penetrating through the upper and lower sides of the end plate 192 is arranged on the end plate 192. The lower end of the first air passage 1921 extends to the inner side of the extrusion cylinder 19. A one-way valve 1922 facing the inner side of the extrusion cylinder 19 is arranged on the first air passage 1921. The fixing mechanism 123 includes a sliding sleeve 1231 sleeved on the connecting column 132 and a fixing bolt 1232 threadedly connected to the sliding sleeve 1231. The fixing bolt 1232 abuts against the connecting column 132. A plurality of adsorption grooves 1211 are arranged on the upper side of the inner plate 121. A second air passage 1321 is arranged in the connecting column 132. The upper end of the second air passage 1321 communicates with the adsorption grooves 1211. A second cavity 1311 is arranged inside the output seat 131. A third piston 1312 is slidably connected in the second cavity 1311. The third piston 1312 divides the second cavity 1311 into an upper chamber located above the third piston 1312 and a lower chamber located below the third piston 1312. The upper chamber communicates with the second air passage 1321, and the lower chamber communicates with the atmosphere. A spring 1313 for applying an upward force to the third piston 1312 is arranged in the lower chamber. The upper side of the third piston 1312 is fixedly connected to a connecting rod 1314. The upper end of the connecting rod 1314 abuts against the sliding sleeve 1231.

[0058] Through the above settings, after the inner cylinder is processed, when the extrusion cylinder 19 presses the substrate 22 against the inner plate 121, it is convenient to pull out the mandrel 14 from the inner cylinder. When the outer cylinder is processed, the outer plate 122 moves downward and causes the third piston 1312 to move downward. The third piston 1312 pumps out the air in the adsorption grooves 1211, and the adsorption grooves 1211 suck the blank plate 21. When the outer cylinder is processed, the first piston rod 153 moves downward to increase the air pressure in the extrusion cylinder 19, making it easy to pull out the extrusion cylinder 19 from the outer cylinder, thereby improving the demolding efficiency of the present application.

[0059] Specifically, after the existing cutting and spinning device processes a cylindrical structure, since the inner cylinder is pressed against the mandrel 14, the demolding is very troublesome. When demolding the present application, refer to Figure 4 , when the inner cylinder is processed by the rotating wheel 16 and then the outer cylinder starts to be processed, refer to Figure 7, first, squeeze the cylinder 19 to press the substrate 22 tightly against the inner plate 121. At this time, a sealed cavity is formed among the end plate 192, the cylinder 19, the blank plate 21, and the first piston rod 153. At this time, the first driving mechanism drives the mandrel 14 to move upward, and the mandrel 14 is pulled out from the inner cylinder. The outside air enters the sealed cavity through the first air passage 1921 and the one-way valve 1922. At this time, the air pressures on both sides of the cylinder 19 are basically the same. After the fixing bolt 1232 is loosened, the sliding sleeve 1231 slides along the connecting column 132 to the lower end of the connecting column 132, and then the fixing bolt 1232 is tightened, so as to fix the sliding sleeve 1231 at the lower end of the connecting column 132. At this time, the outer plate 122 is located below the inner plate 121. Under the action of the sliding sleeve 1231, the connecting rod 1314 and the third piston 1312 move downward, and the spring 1313 is compressed. When the third piston 1312 moves downward, the volume of the upper chamber becomes larger, and the air in the adsorption groove 1211 is pumped out. The adsorption groove 1211 sucks the cylindrical structure. When the outer cylinder processing is completed, see Figure 8 , the first piston rod 153 moves downward and approaches the inner cylinder. On the one hand, the height of the mandrel 14 is reduced, which is convenient for the next round of processing. On the other hand, the volume of the sealed cavity shrinks, the pressure of the sealed cavity becomes larger, and the air in the sealed cavity exerts a downward force on the cylindrical structure. When the cylinder 19 moves upward, the cylinder 19 is pulled out from the outer cylinder, and the cylindrical structure is adsorbed on the adsorption groove 1211. See Figure 9 , finally, loosen the fixing bolt 1232 and slide the sliding sleeve 1231 upward to make the upper side of the outer plate 122 flush with the upper side of the inner plate 121. Under the action of the spring 1313, the third piston 1312 resets, and the gas re-enters the adsorption groove 1211. The adsorption groove 1211 releases the cylindrical structure, which is convenient for the operator to remove the cylindrical structure from the adsorption groove 1211.

[0060] It should be understood that for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present invention.

Claims

1. A cutting and spinning device, comprising a base, a rotating table for supporting a blank plate, a rotating mechanism for driving the rotating table, a mandrel disposed above the rotating table, and a first driving mechanism for driving the mandrel to move vertically. A spinning wheel is disposed on one side of the rotating table. The base is provided with a second driving mechanism for driving the spinning wheel to move radially along the blank plate and a third driving mechanism for driving the spinning wheel to move vertically, characterized in that, The cutting and spinning device further includes an extrusion cylinder disposed above the rotating table and a fourth driving mechanism for driving the extrusion cylinder to move vertically. The extrusion cylinder and the mandrel are coaxially arranged. The rotating table includes an inner plate rotatably connected to the base, an outer plate sleeved outside the inner plate and axially slidable along the inner plate, and a fixing mechanism for fixing the position of the outer plate. The diameter of the blank plate is larger than the diameter of the inner plate and smaller than the outer diameter of the outer plate. The upper sides of the inner plate and the outer plate are flush. The outer diameter of the extrusion cylinder is equal to the diameter of the inner plate.

2. The cutting and spinning device according to claim 1, characterized in that, The spinning wheel includes a first state and a second state. When the spinning wheel is in the first state, the end of the spinning wheel close to the rotating table is inclined downward so that the spinning wheel cuts and spins the upper side of the blank plate to form an inner cylinder. When the spinning wheel is in the second state, the end of the spinning wheel close to the rotating table is inclined upward so that the spinning wheel spins and presses the substrate to form an outer cylinder.

3. A cutting and spinning device according to claim 2, wherein, A lifting table is arranged on one side of the rotating table. The third driving mechanism is arranged on the base and connected to the lifting table. A sliding seat is slidably connected to the upper side of the lifting table. The second driving mechanism is arranged on the lifting table and connected to the sliding seat. A wheel frame is arranged on the side of the sliding seat close to the rotating table. One end of the wheel frame close to the rotating table is rotatably connected to the spinning wheel. The wheel frame is rotatably connected to the sliding seat so that the state of the spinning wheel can be switched by rotating the wheel frame. The sliding seat is provided with a locking mechanism for locking the wheel frame.

4. A cutting and spinning device according to claim 3, characterized in that, The wheel frame includes a rotating seat rotatably connected to the sliding seat and a bracket fixedly connected to the side of the rotating seat close to the rotating table. The spinning wheel is rotatably connected to one end of the bracket close to the rotating table. The locking mechanism includes a positioning ring fixedly connected to the sliding seat and a locking bolt threadedly connected to the positioning ring. The rotating seat is rotatably connected inside the positioning ring. The locking bolt abuts against the rotating seat.

5. A cutting and spinning device according to claim 4, characterized in that, A first limiting rod is fixedly connected to the upper side of the positioning ring, and a second limiting rod is fixedly connected to the lower side of the positioning ring. The rotating seat is fixedly connected with a rotating rod. When the rotating rod abuts against the first limiting rod, the spinning wheel is in the first state. When the rotating rod abuts against the second limiting rod, the spinning wheel is in the second state.

6. A cutting and spinning device according to claim 1, characterized in that, A top plate is arranged above the base. The top plate is fixedly connected to the base through a connecting plate. The first driving mechanism is a first oil cylinder. The first oil cylinder includes a first cylinder body fixedly connected to the lower side of the top plate, a first piston slidably connected inside the first cylinder body, a first piston rod fixedly connected to the lower side of the first piston, and a first oil pump connected to the first cylinder body. The lower end of the first piston rod is rotatably connected to the extrusion cylinder.

7. A cutting and spinning device according to claim 6, characterized in that, The fourth driving mechanism includes a housing sleeved on the first cylinder block. A first cavity is formed between the housing and the first cylinder block and is arranged around the first cylinder block. The fourth driving mechanism further includes a second piston slidably connected in the first cavity, a second piston rod fixedly connected to the lower side of the second piston, and a second oil pump communicated with the first cavity. The lower end of the second piston rod is fixedly connected with a mounting plate, and the extrusion cylinder is rotatably connected to the lower side of the mounting plate.

8. A cutting and spinning device according to claim 7, characterized in that, A rotating plate is arranged between the mounting plate and the extrusion cylinder. Both the rotating plate and the mounting plate are annular. The first piston rod passes through the rotating plate and the mounting plate. The rotating plate and the extrusion cylinder are detachably connected. A guiding ring extending upward is fixedly connected to the inner side of the rotating plate. A limiting protrusion extending outward is fixedly connected to the upper side of the guiding ring. The inner side of the mounting plate is arranged between the limiting protrusion and the rotating plate. A rolling bearing is arranged between the mounting plate and the guiding ring. A thrust bearing is arranged between the limiting protrusion and the mounting plate. A thrust bearing is arranged between the mounting plate and the rotating plate.

9. A cutting and spinning device according to claim 8, characterized in that, The rotating mechanism includes an output seat rotatably connected to the base. The inner plate is arranged on the upper side of the output seat and is fixedly connected to the output seat through a connecting column. The rotating mechanism further includes a driven wheel fixedly connected to the output seat, a motor arranged on the lower side of the base, and a driving wheel connected to the motor. The driving wheel is in transmission connection with the driven wheel through a belt. The radius of the driving wheel is smaller than the radius of the driven wheel.

10. A cutting and spinning device according to claim 9, characterized in that, The upper end of the extrusion cylinder is fixedly connected with an end plate. The end plate and the rotating plate are detachably connected. The first piston rod passes through the end plate and is hermetically connected to the end plate. An O-ring is arranged between the first piston rod and the end plate. A first air passage penetrating through the upper and lower sides of the end plate is arranged on the end plate. The lower end of the first air passage extends to the inner side of the extrusion cylinder. A one-way valve facing the inner side of the extrusion cylinder is arranged on the first air passage. The fixing mechanism includes a sliding sleeve sleeved on the connecting column and a fixing bolt threadedly connected to the sliding sleeve. The fixing bolt abuts against the connecting column. A plurality of adsorption grooves are arranged on the upper side of the inner plate. A second air passage is arranged in the connecting column. The upper end of the second air passage is communicated with the adsorption grooves. A second cavity is arranged inside the output seat. A third piston is slidably connected in the second cavity. The third piston divides the second cavity into an upper chamber located above the third piston and a lower chamber located below the third piston. The upper chamber is communicated with the second air passage. The lower chamber is communicated with the atmosphere. A spring for applying an upward force to the third piston is arranged in the lower chamber. The upper side of the third piston is fixedly connected with a connecting rod. The upper end of the connecting rod abuts against the sliding sleeve.

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