Rotary cylinder for centering and clamping workpiece

Abstract

The invention discloses a rotating cylinder for centering and clamping a workpiece, and relates to the technical field of rotating cylinders. The device comprises an output shaft, the output shaft extends out of a shell, the surface of the output shaft is rotationally connected with the inner side face of the shell, a rotating assembly is fixedly connected with the output shaft, air cylinder assemblies are symmetrically arranged on the two sides of the rotating assembly, and an air pump assembly is arranged on the side, away from the output shaft, of the rotating assembly and fixedly connected to the top of a bottom plate. The two ends of the air pump assembly communicate with the two air cylinder assemblies correspondingly, when the output shaft is driven to rotate in the designated direction, the air inlet end and the exhaust end of the air pump assembly drive the two air cylinder assemblies correspondingly, the two air cylinder assemblies drive the rotating assembly to rotate in the same direction, double power is provided, and output energy consumption is reduced; compressed air used by the air pump assembly circulates in the air pump assembly and the two air cylinder assemblies all the time, blockage caused by air sucked into the external environment is avoided, and the failure rate is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of rotary cylinders, and in particular to a rotary cylinder used for centering and clamping a workpiece. Background Art

[0002] Workpiece centering and clamping is a key operation in mechanical processing. Its purpose is to ensure that the workpiece has an accurate position and precise center positioning during the processing. Through the centering device, the mechanical structure or the principle of elastic deformation is used to make the workpiece automatically or through adjustment to achieve the center coincidence with the rotation center or reference center of the processing equipment. Clamping is to firmly clamp the workpiece after centering to prevent it from displacement and vibration during the processing. The fixture used can be various types of chucks and collets. By applying appropriate clamping force, the stability of the workpiece during processing is guaranteed. This plays an extremely important role in improving processing accuracy, ensuring processing quality and efficiency. Rotary cylinders are mainly used in mechanical processing and other fields. They can accurately center and firmly clamp the workpiece, and then realize the processing of different positions of the workpiece through the rotation action. The rotary function of the rotary cylinder is combined with the mechanical structure of centering and clamping, such as through special claws or chucks, which are driven by air pressure to make the claws move synchronously to center and clamp the workpiece; When a rotary cylinder is in use, it usually generates a lot of heat due to friction. Overheating can easily cause the piston in the cylinder to age faster, affecting the service life of the rotary cylinder. In addition, the transmission structure of the rotary cylinder usually needs to be lubricated when in use. Therefore, we propose a rotary cylinder for workpiece centering and clamping. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a rotary cylinder for centering and clamping a workpiece, comprising: A bottom plate, the top of which is fixedly connected with the outer shell; A rotary cylinder mechanism, wherein the rotary cylinder mechanism is fixedly connected to the top of the bottom plate, the rotary cylinder mechanism is arranged inside the housing, and the output end of the rotary cylinder mechanism extends to the outside of the housing, and a heat dissipation hole is provided on a side of the housing away from the rotary cylinder mechanism; Wherein, the rotating cylinder mechanism comprises: An output shaft, the output shaft is arranged inside the housing, and one end of the output shaft away from the heat dissipation hole extends to the outside of the housing, and the surface of the output shaft is rotatably connected to the inner side surface of the housing; A rotating assembly, wherein the output end of the rotating assembly is fixedly connected to one end of the output shaft located inside the housing; A cylinder assembly, wherein the cylinder assembly is symmetrically arranged on both sides of the rotating assembly with the output shaft as the center, and the cylinder assembly is used to drive the rotating assembly to rotate; An air pump assembly, the air pump assembly is arranged on a side of the rotating assembly away from the output shaft, and the air pump assembly is fixedly connected to the top of the bottom plate, and the sides of the two cylinder assemblies away from each other are respectively fixedly connected to the two output ends of the air pump assembly; The output shaft is located at one end outside the shell and is used to connect the object to be driven. The air pump assembly is started, and one end of the air pump assembly inhales gas in a cylinder assembly. The cylinder assembly drives the output end of the rotating assembly to rotate in a specified direction. At the same time, the other end of the air pump assembly presses the gas into another cylinder assembly. The other cylinder assembly drives the output end of the rotating assembly to rotate in the same direction, and finally drives the output shaft to rotate in the specified direction. The two ends of the air pump assembly are respectively connected to the two cylinder assemblies. When driving the output shaft to rotate in the specified direction, the air intake end and the exhaust end of the air pump assembly respectively drive the two cylinder assemblies, and the two cylinder assemblies drive the rotating assembly to rotate in the same direction, thereby providing double power and reducing output energy consumption. The compressed air used by the air pump assembly is always circulated inside the air pump assembly and the two cylinder assemblies, which can avoid blockage caused by inhaling air from the external environment, thereby reducing the failure rate. By changing the air intake direction, the output shaft can rotate in another direction to meet different usage requirements.

[0004] Furthermore, a groove plate is provided at the interval between the two cylinder assemblies, and the outer side surface of the groove plate is fixedly connected to the side where the two cylinder assemblies are close to each other, the cylinder assembly is fixedly connected to the top of the base plate, the groove plate is fixedly connected to the top of the base plate, and the inner side surface of the groove plate is fixedly connected to the surface of the rotating assembly, the groove plate lifts up the rotating assembly, and can prevent the rotating assembly from bending the cylinder assemblies on both sides.

[0005] Furthermore, the rotating assembly includes a shield, the outer side surface of the shield is fixedly connected to the inner side surface of the groove plate, the shield has a heat dissipation hole on the side away from the output shaft, a rack is arranged inside the shield, both ends of the rack extend to the outside of the shield, and the rack passes through the shield and the groove plate in sequence, the surface of the rack is slidably connected to the inner side surface of the shield, the surface of the rack is slidably connected to the inner side surface of the groove plate, a gear is arranged on the side of the rack away from the base plate, and the gear is meshed with the rack, the inner side surface of the gear is fixedly connected to the surface of the output shaft, driving the rack to move, thereby driving the gear to rotate, thereby driving the output shaft to rotate, the cylinder assemblies on both sides respectively drive the two ends of the rack to move, and the two cylinder assemblies drive the rack in the same direction to obtain a better rotation effect.

[0006] Furthermore, a fan blade is provided on the side of the gear away from the heat dissipation hole of the shield, and the inner side surface of the fan blade is fixedly connected to the surface of the output shaft, and the fan blade is arranged inside the shield. The output shaft rotates, driving the fan blade to rotate, thereby cooling the connection between the gear and the rack, avoiding overheating of the rack or gear, avoiding reduction of the gap between the rack and the gear, and thus avoiding wear of the rack and the gear. The airflow blows toward the side close to the heat dissipation hole of the shield, and the hot air passes through the heat dissipation hole of the shield and is finally discharged through the heat dissipation hole of the outer shell, achieving a better cooling effect.

[0007] Furthermore, the cylinder assembly includes a shell, which is fixedly connected to the top of the base plate, and the inner side surface of the shell is fixedly connected to a cylinder, and the inner side surface of the cylinder is slidably connected to a piston, and the inner side surface of the piston is fixedly connected to the surface of the rack. The compressed gas enters the cylinder from the end of the cylinder away from the groove plate, thereby driving the piston to move, and finally driving one end of the rack to move. By continuously injecting or sucking out gas, the piston is driven to move, and then the rack is driven to move in different directions, and finally the output shaft is driven to rotate in a predetermined direction.

[0008] Furthermore, a heat sink is fixedly connected to the outer side of the cylinder, and the heat sink is made of metal copper. The end of the heat sink away from the cylinder extends to the outside of the shell, and the surface of the heat sink is fixedly connected to the inner side of the shell. The end of the heat sink located outside the shell is set in a V shape. The piston and the cylinder rub to generate a large amount of heat, which is transferred to the cylinder and then conducted to the heat sink. The copper heat sink can obtain better thermal conductivity, thereby better cooling the cylinder, avoiding overheating of the cylinder and the piston and aggravating wear, thereby extending the service life of the device. The end of the heat sink located outside the shell is set in a V shape, which can increase the contact area with the external environment of the cylinder, thereby achieving a better cooling effect.

[0009] Furthermore, four groups of heat sinks are provided, and the four groups of heat sinks are respectively provided at the four corners of the shell, each group of heat sinks is provided with a number of heat sinks, and the heat sinks are evenly distributed on the surface of the shell, and the heat sinks can achieve a better cooling effect.

[0010] Furthermore, the inner side surface of the cylinder is fixedly connected to a limiting rod, and the end of the limiting rod close to the groove plate is fixedly connected to a sealing ring, and the outer side surface of the sealing ring is fixedly connected to the inner side surface of the cylinder, the limiting rod passes through the piston, and the inner side surface of the piston is slidably connected to the surface of the limiting rod, and there are several limiting rods evenly distributed along the circumference of the piston. The piston slides inside the cylinder and at the same time slides on the surface of the limiting rod, thereby limiting the piston to prevent the position of the piston from shifting when sliding, thereby preventing the piston from getting stuck.

[0011] Furthermore, a spring is non-fixedly connected to the inner side of the sealing ring, and one end of the spring away from the sealing ring is fixedly connected to the warehouse body, and the inner side of the warehouse body is slidably connected to the surface of the rack, and a plurality of springs are evenly distributed along the circumference of the sealing ring, and the side of the warehouse body away from the bottom plate is fixedly connected to an oil filling pipe, and a narrow hole is provided on the inner side of the warehouse body close to the oil filling pipe. Lubricating oil is stored in the warehouse body. When the piston moves to the bottom of the cylinder body, it hits the sealing ring, and the sealing ring buffers the piston, thereby preventing the piston from being damaged due to the impact. The piston hits the sealing ring, and the vibration of the sealing ring drives the spring to vibrate, thereby consuming the energy generated by the impact and achieving better buffering and shock absorbing effect. The vibration of the spring drives the warehouse body to vibrate, so that the lubricating oil flows out from the narrow hole, thereby lubricating the rack. The lubricating oil is injected into the oil filling pipe, and the lubricating oil is viscous. When the warehouse body is stationary, the lubricating oil will not flow out from the narrow hole, thereby avoiding waste of lubricating oil.

[0012] Furthermore, the air pump assembly includes a pump body, a support plate fixedly connected to the surface of the pump body, and a side of the support plate away from the pump body is fixedly connected to the top of the bottom plate, the ends of the pump body are fixedly connected to a serpentine tube, the ends of the two serpentine tubes away from each other are fixedly connected to a connecting tube, the ends of the two connecting tubes away from the serpentine tube are respectively fixedly connected to the ends of the two cylinders away from each other, and the pump body is started, and the pump body drives the gas to pass through the serpentine tube and the connecting tube in sequence, and finally presses into the cylinder on one side, and the other end of the pump body generates suction, and the other serpentine tube generates suction, and the connecting tube sucks out the gas inside the other cylinder, thereby driving the two pistons to move in the same direction, and then jointly driving the rack to move, thereby reducing energy consumption, and the gas flows outside the cylinder, and the setting of the serpentine tube can extend the time that the gas inside the cylinder is in the outside world, thereby achieving a better cooling effect and avoiding overheating and damage to the piston.

[0013] The present invention has the beneficial effects: The present invention sets a rotating cylinder mechanism, and the two ends of the air pump assembly are respectively connected to the two cylinder assemblies. When the output shaft is driven to rotate in a specified direction, the air intake end and the exhaust end of the air pump assembly respectively drive the two cylinder assemblies, and the two cylinder assemblies drive the rotating assembly to rotate in the same direction, thereby providing double power and reducing output energy consumption. The compressed air used by the air pump assembly always circulates inside the air pump assembly and the two cylinder assemblies, which can avoid blockage caused by inhaling air from the external environment, thereby reducing the failure rate.

[0014] The present invention provides a rotating component, and the cylinder components on both sides respectively drive the two ends of the rack to move, and the two cylinder components drive the rack in the same direction, so as to obtain a better rotation effect. The output shaft rotates, driving the fan blades to rotate, thereby cooling the connection between the gear and the rack, avoiding overheating of the rack or the gear, avoiding a reduction in the gap between the rack and the gear, and thus avoiding wear of the rack and the gear. The airflow blows to the side close to the heat dissipation holes of the shield, and the hot air passes through the heat dissipation holes of the shield and is finally discharged through the heat dissipation holes of the outer shell, achieving a better cooling effect.

[0015] The present invention provides a heat sink, and the piston and the cylinder rub to generate a large amount of heat. The heat is transferred to the cylinder and then conducted to the heat sink. The copper heat sink can obtain a better heat conduction effect, thereby better cooling the cylinder, avoiding overheating of the cylinder and the piston and aggravating wear, thereby extending the service life of the device. The end of the heat sink located outside the shell is set in a V shape, which can increase the contact area with the external environment of the cylinder, thereby achieving a better cooling effect.

[0016] The present invention sets a cylinder assembly, and the piston slides on the surface of the limit rod, thereby limiting the piston, avoiding the position of the piston to be offset when sliding, thereby avoiding the piston to be stuck, and when the piston moves to the bottom of the cylinder body, it hits the sealing ring, and the sealing ring acts as a buffer for the piston, thereby avoiding the piston to be damaged due to the impact. The piston hits the sealing ring, and the vibration of the sealing ring drives the spring to vibrate, thereby consuming the energy generated by the impact, achieving a better buffering and shock absorbing effect. The spring vibrates, thereby driving the warehouse body to vibrate, so that the lubricating oil flows out from the narrow hole, thereby lubricating the rack.

[0017] The present invention arranges an air pump assembly to drive the two pistons to move in the same direction, and then jointly drives the rack to move, thereby reducing energy consumption. The gas flows outside the cylinder, and the arrangement of the serpentine tube can prolong the time that the gas inside the cylinder is in the outside world, thereby achieving a better cooling effect and avoiding overheating and damage to the piston. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a rotary cylinder used for centering and clamping a workpiece according to the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the housing of the present invention; Figure 3 It is a schematic diagram of the structure of the rotating assembly of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the protective cover of the present invention; Figure 5 It is a schematic diagram of the structure of the air pump assembly of the present invention; Figure 6 This is a schematic diagram of the sealing ring structure of the present invention; Figure 7 This is a schematic diagram of the warehouse structure of the present invention; Figure 8 It is a schematic diagram of the structure of the air pump assembly of the present invention.

[0019] In the figure: 1. base plate; 2. outer shell; 3. rotating cylinder mechanism; 31. output shaft; 32. rotating assembly; 321. shield; 322. rack; 323. gear; 324. fan blade; 33. cylinder assembly; 331. shell; 332. cylinder body; 333. piston; 334. heat sink; 335. limit rod; 336. sealing ring; 337. warehouse body; 338. spring; 339. narrow hole; 3310. oil filling pipe; 34. groove plate; 35. air pump assembly; 351. pump body; 352. support plate; 353. serpentine pipe; 354. connecting pipe. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0021] Example 1, please refer to Figure 1-Figure 4 The present invention is a rotary cylinder for centering and clamping a workpiece, comprising: A bottom plate 1, the top of which is fixedly connected with a housing 2; The rotary cylinder mechanism 3 is fixedly connected to the top of the bottom plate 1, the rotary cylinder mechanism 3 is arranged inside the housing 2, and the output end of the rotary cylinder mechanism 3 extends to the outside of the housing 2, and a heat dissipation hole is opened on one side of the housing 2 away from the rotary cylinder mechanism 3; Wherein, the rotary cylinder mechanism 3 comprises: An output shaft 31, the output shaft 31 is disposed inside the housing 2, and one end of the output shaft 31 away from the heat dissipation hole extends to the outside of the housing 2, and the surface of the output shaft 31 is rotatably connected to the inner side surface of the housing 2; A rotating assembly 32, wherein the output end of the rotating assembly 32 is fixedly connected to one end of the output shaft 31 located inside the housing 2; The cylinder assembly 33 is symmetrically arranged on both sides of the rotating assembly 32 with the output shaft 31 as the center, and the cylinder assembly 33 is used to drive the rotating assembly 32 to rotate; The air pump assembly 35 is arranged on a side of the rotating assembly 32 away from the output shaft 31, and the air pump assembly 35 is fixedly connected to the top of the bottom plate 1, and the sides of the two cylinder assemblies 33 away from each other are respectively fixedly connected to the two output ends of the air pump assembly 35; One end of the output shaft 31 located outside the housing 2 is used to connect to the object to be driven. The air pump assembly 35 is started, and one end of the air pump assembly 35 sucks gas from a cylinder assembly 33. The cylinder assembly 33 drives the output end of the rotating assembly 32 to rotate in a specified direction. At the same time, the other end of the air pump assembly 35 presses the gas into another cylinder assembly 33. The other cylinder assembly 33 drives the output end of the rotating assembly 32 to rotate in the same direction, and finally drives the output shaft 31 to rotate in the specified direction. The two ends of the air pump assembly 35 are respectively connected to the two cylinder assemblies 33. When driving the output shaft 31 to rotate in a specified direction, the air intake end and the exhaust end of the air pump assembly 35 respectively drive the two cylinder assemblies 33, and the two cylinder assemblies 33 drive the rotating assembly 32 to rotate in the same direction, thereby providing double power and reducing output energy consumption. The compressed air used by the air pump assembly 35 always circulates inside the air pump assembly 35 and the two cylinder assemblies 33, which can avoid blockage caused by inhaling air from the external environment, thereby reducing the failure rate. By changing the air intake direction, the output shaft 31 can be rotated in another direction to meet different usage requirements.

[0022] A groove plate 34 is provided at the interval between the two cylinder assemblies 33, and the outer side surface of the groove plate 34 is fixedly connected to the side where the two cylinder assemblies 33 are close to each other, the cylinder assembly 33 is fixedly connected to the top of the base plate 1, the groove plate 34 is fixedly connected to the top of the base plate 1, and the inner side surface of the groove plate 34 is fixedly connected to the surface of the rotating assembly 32, the groove plate 34 lifts the rotating assembly 32, and can prevent the rotating assembly 32 from bending the cylinder assemblies 33 on both sides.

[0023] The rotating assembly 32 includes a shield 321, the outer side of the shield 321 is fixedly connected to the inner side of the groove plate 34, the shield 321 has a heat dissipation hole on the side away from the output shaft 31, a rack 322 is arranged inside the shield 321, both ends of the rack 322 extend to the outside of the shield 321, and the rack 322 sequentially penetrates the shield 321 and the groove plate 34, the surface of the rack 322 is slidably connected to the inner side of the shield 321, and the surface of the rack 322 is slidably connected to the inner side of the groove plate 34, a gear 323 is arranged on the side of the rack 322 away from the bottom plate 1, and the gear 323 is meshed with the rack 322, the inner side of the gear 323 is fixedly connected to the surface of the output shaft 31, the rack 322 is driven to move, thereby driving the gear 323 to rotate, thereby driving the output shaft 31 to rotate, the cylinder assemblies 33 on both sides drive the two ends of the rack 322 to move respectively, and the two cylinder assemblies 33 drive the rack 322 in the same direction, so as to obtain a better rotation effect.

[0024] A fan blade 324 is provided on the side of the gear 323 away from the heat dissipation hole of the shield 321, and the inner side of the fan blade 324 is fixedly connected to the surface of the output shaft 31, and the fan blade 324 is arranged inside the shield 321. The output shaft 31 rotates, driving the fan blade 324 to rotate, thereby cooling the connection between the gear 323 and the rack 322, avoiding overheating of the rack 322 or the gear 323, avoiding the reduction of the gap between the rack 322 and the gear 323, thereby avoiding wear of the rack 322 and the gear 323, and the air flow blows toward the side close to the heat dissipation hole of the shield 321. The hot air passes through the heat dissipation holes of the shield 321 and is finally discharged through the heat dissipation holes of the shell 2, achieving a better cooling effect.

[0025] Example 2, please refer to Figure 1-Figure 8 The cylinder assembly 33 includes a shell 331, which is fixedly connected to the top of the base plate 1. The inner side of the shell 331 is fixedly connected to a cylinder 332, and the inner side of the cylinder 332 is slidably connected to a piston 333, and the inner side of the piston 333 is fixedly connected to the surface of the rack 322. The compressed gas enters the cylinder 332 from the end of the cylinder 332 away from the groove plate 34, thereby driving the piston 333 to move, and finally driving one end of the rack 322 to move. By continuously injecting or sucking out gas, the piston 333 is driven to move, and then the rack 322 is driven to move in different directions, and finally the output shaft 31 is driven to rotate in a predetermined direction.

[0026] The outer side surface of the cylinder 332 is fixedly connected to a heat sink 334, which is made of metal copper. The end of the heat sink 334 away from the cylinder 332 extends to the outside of the shell 331, and the surface of the heat sink 334 is fixedly connected to the inner side surface of the shell 331. The end of the heat sink 334 located outside the shell 331 is set in a V shape. The piston 333 rubs against the cylinder 332 to generate a large amount of heat. The heat is transferred to the cylinder 332 and then conducted to the heat sink 334. The copper heat sink 334 can obtain a better thermal conductivity effect, thereby better cooling the cylinder 332, avoiding overheating and aggravated wear of the cylinder 332 and the piston 333, thereby extending the service life of the device. The end of the heat sink 334 located outside the shell 331 is set in a V shape, which can increase the contact area with the external environment of the cylinder 332, thereby achieving a better cooling effect.

[0027] There are four groups of heat sinks 334 , and the four groups of heat sinks 334 are respectively arranged at the four corners of the shell 331 , each group of heat sinks 334 is provided with a plurality of heat sinks 334 , and the plurality of heat sinks 334 are evenly distributed on the surface of the shell 331 , and the plurality of heat sinks 334 can achieve a better cooling effect.

[0028] The inner side surface of the cylinder 332 is fixedly connected to a limiting rod 335, and one end of the limiting rod 335 close to the groove plate 34 is fixedly connected to a sealing ring 336, and the outer side surface of the sealing ring 336 is fixedly connected to the inner side surface of the cylinder 332, the limiting rod 335 passes through the piston 333, and the inner side surface of the piston 333 is slidably connected to the surface of the limiting rod 335, and there are several limiting rods 335 evenly distributed along the circumference of the piston 333, the piston 333 slides inside the cylinder 332, and at the same time, the piston 333 slides on the surface of the limiting rod 335, thereby limiting the piston 333 to prevent the position of the piston 333 from being offset when sliding, thereby preventing the piston 333 from being stuck.

[0029] The inner side of the sealing ring 336 is non-fixedly connected with a spring 338, and one end of the spring 338 away from the sealing ring 336 is fixedly connected with a bin 337, and the inner side of the bin 337 is slidably connected with the surface of the rack 322. A plurality of springs 338 are evenly distributed along the circumference of the sealing ring 336, and the side of the bin 337 away from the bottom plate 1 is fixedly connected with an oil injection pipe 3310, and a narrow hole 339 is provided on the inner side of the bin 337 close to the oil injection pipe 3310. Lubricating oil is stored in the bin 337, and when the piston 333 moves to the bottom of the cylinder 332, it hits the sealing ring 336. The sealing ring 336 acts as a buffer for the piston 333, thereby preventing the piston 333 from being damaged due to impact. The piston 333 hits the sealing ring 336, and the vibration of the sealing ring 336 drives the spring 338 to vibrate, thereby consuming the energy generated by the impact and achieving a better buffering and shock absorbing effect. The spring 338 vibrates, thereby driving the bin body 337 to vibrate, causing the lubricating oil to flow out of the narrow hole 339, thereby lubricating the rack 322. The lubricating oil is injected into the oil filling pipe 3310. The lubricating oil is viscous. When the bin body 337 is stationary, the lubricating oil will not flow out of the narrow hole 339, thereby avoiding waste of lubricating oil.

[0030] The air pump assembly 35 includes a pump body 351, a support plate 352 is fixedly connected to the surface of the pump body 351, and the side of the support plate 352 away from the pump body 351 is fixedly connected to the top of the bottom plate 1, the ends of the pump body 351 are fixedly connected to the serpentine tubes 353, and the ends of the two serpentine tubes 353 away from each other are fixedly connected to the connecting tubes 354, and the ends of the two connecting tubes 354 away from the serpentine tubes 353 are respectively fixedly connected to the ends of the two cylinders 332 away from each other. When the pump body 351 is started, the pump body 351 drives the gas to pass through the serpentine tubes 353, The connecting tube 354 is finally pressed into the cylinder 332 on one side, and the other end of the pump body 351 generates suction, and the other serpentine tube 353 generates suction. The connecting tube 354 sucks out the gas inside the other cylinder 332, thereby driving the two pistons 333 to move in the same direction, and then jointly drives the rack 322 to move, thereby reducing energy consumption. The gas flows outside the cylinder 332, and the setting of the serpentine tube 353 can extend the time that the gas inside the cylinder 332 is in the outside world, thereby achieving a better cooling effect and preventing the piston 333 from overheating and damage.

[0031] When in use, the pump body 351 is started, and the pump body 351 drives the gas to pass through the serpentine tube 353 and the connecting tube 354 in sequence, and finally presses into the cylinder 332 on one side. The other end of the pump body 351 generates suction, and the other serpentine tube 353 generates suction. The connecting tube 354 sucks out the gas inside the other cylinder 332, thereby driving the two pistons 333 to move in the same direction. The piston 333 slides inside the cylinder 332, and at the same time, the piston 333 slides on the surface of the limit rod 335, and finally drives one end of the rack 322 to move. By continuously injecting or sucking out gas, the piston 333 is driven to move, and then the rack 322 is driven to move in different directions. The gear 323 moves, thereby driving the output shaft 31 to rotate, and finally driving the output shaft 31 to rotate in a predetermined direction. Lubricating oil is stored inside the warehouse 337, and the lubricating oil is injected into the oil filling pipe 3310. The lubricating oil is viscous. When the warehouse 337 is stationary, the lubricating oil will not flow out from the narrow hole 339, thereby avoiding waste of lubricating oil. When the piston 333 moves to the bottom of the cylinder 332, it hits the sealing ring 336. The piston 333 hits the sealing ring 336. The vibration of the sealing ring 336 drives the spring 338 to vibrate. The vibration of the spring 338 drives the warehouse 337 to vibrate, so that the lubricating oil flows out from the narrow hole 339 to lubricate the rack 322.

[0032] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A rotary cylinder for centering and clamping a workpiece, characterized in that: include: A bottom plate (1), the top of the bottom plate (1) being fixedly connected to a housing (2); A rotary cylinder mechanism (3), the rotary cylinder mechanism (3) being fixedly connected to the top of the bottom plate (1), the rotary cylinder mechanism (3) being arranged inside the outer shell (2), and the output end of the rotary cylinder mechanism (3) extending to the outside of the outer shell (2), and a heat dissipation hole being provided on a side of the outer shell (2) away from the rotary cylinder mechanism (3); Wherein, the rotating cylinder mechanism (3) comprises: An output shaft (31), the output shaft (31) being arranged inside the housing (2), and one end of the output shaft (31) away from the heat dissipation hole extending to the outside of the housing (2), and the surface of the output shaft (31) being rotatably connected to the inner side surface of the housing (2); A rotating assembly (32), wherein an output end of the rotating assembly (32) is fixedly connected to an end of the output shaft (31) located inside the housing (2); A cylinder assembly (33), wherein the cylinder assembly (33) is symmetrically arranged on both sides of the rotating assembly (32) with the output shaft (31) as the center, and the cylinder assembly (33) is used to drive the rotating assembly (32) to rotate; An air pump assembly (35), the air pump assembly (35) being arranged on a side of the rotating assembly (32) away from the output shaft (31), and the air pump assembly (35) being fixedly connected to the top of the bottom plate (1), and the sides of the two cylinder assemblies (33) away from each other are respectively fixedly connected to two output ends of the air pump assembly (35).

2. A rotary cylinder for centering and clamping a workpiece according to claim 1, characterized in that: A groove plate (34) is provided at the interval between the two cylinder assemblies (33), and the outer side surface of the groove plate (34) is fixedly connected to the side of the two cylinder assemblies (33) that are close to each other, the cylinder assemblies (33) are fixedly connected to the top of the bottom plate (1), the groove plate (34) is fixedly connected to the top of the bottom plate (1), and the inner side surface of the groove plate (34) is fixedly connected to the surface of the rotating assembly (32).

3. A rotary cylinder for centering and clamping a workpiece according to claim 2, characterized in that: The rotating assembly (32) comprises a shield (321), the outer side surface of the shield (321) is fixedly connected to the inner side surface of the groove plate (34), the shield (321) has a heat dissipation hole on a side away from the output shaft (31), a rack (322) is arranged inside the shield (321), both ends of the rack (322) extend to the outside of the shield (321), and the rack (322) sequentially penetrates the shield (321) and the groove plate (34), the surface of the rack (322) is slidably connected to the inner side surface of the shield (321), the surface of the rack (322) is slidably connected to the inner side surface of the groove plate (34), a gear (323) is arranged on a side of the rack (322) away from the bottom plate (1), the gear (323) is meshedly connected to the rack (322), and the inner side surface of the gear (323) is fixedly connected to the surface of the output shaft (31).

4. A rotary cylinder for centering and clamping a workpiece according to claim 3, characterized in that: A fan blade (324) is provided on a side of the gear (323) away from the heat dissipation hole of the shield (321), and an inner side surface of the fan blade (324) is fixedly connected to a surface of the output shaft (31), and the fan blade (324) is arranged inside the shield (321).

5. A rotary cylinder for centering and clamping a workpiece according to claim 4, characterized in that: The cylinder assembly (33) comprises a shell (331), the shell (331) being fixedly connected to the top of the base plate (1), the inner side surface of the shell (331) being fixedly connected to a cylinder (332), the inner side surface of the cylinder (332) being slidably connected to a piston (333), and the inner side surface of the piston (333) being fixedly connected to the surface of the rack (322).

6. A rotary cylinder for centering and clamping a workpiece according to claim 5, characterized in that: A heat sink (334) is fixedly connected to the outer side surface of the cylinder (332); the heat sink (334) is made of metal copper; one end of the heat sink (334) away from the cylinder (332) extends to the outside of the shell (331); the surface of the heat sink (334) is fixedly connected to the inner side surface of the shell (331); and one end of the heat sink (334) located outside the shell (331) is arranged in a V shape.

7. A rotary cylinder for centering and clamping a workpiece according to claim 6, characterized in that: Four groups of heat dissipation plates (334) are provided, and the four groups of heat dissipation plates (334) are respectively provided at the four corners of the shell (331), and each group of heat dissipation plates (334) is provided with a plurality of heat dissipation plates (334), and the plurality of heat dissipation plates (334) are evenly distributed on the surface of the shell (331).

8. A rotary cylinder for centering and clamping a workpiece according to claim 7, characterized in that: The inner side surface of the cylinder (332) is fixedly connected to a limiting rod (335); one end of the limiting rod (335) close to the groove plate (34) is fixedly connected to a sealing ring (336); the outer side surface of the sealing ring (336) is fixedly connected to the inner side surface of the cylinder (332); the limiting rod (335) passes through the piston (333); the inner side surface of the piston (333) is slidably connected to the surface of the limiting rod (335); and a plurality of limiting rods (335) are evenly distributed along the circumference of the piston (333).

9. A rotary cylinder for centering and clamping a workpiece according to claim 8, characterized in that: The inner side surface of the sealing ring (336) is non-fixedly connected to a spring (338); one end of the spring (338) away from the sealing ring (336) is fixedly connected to a storage body (337); the inner side surface of the storage body (337) is slidably connected to the surface of the rack (322); a plurality of springs (338) are evenly distributed along the circumference of the sealing ring (336); a side of the storage body (337) away from the bottom plate (1) is fixedly connected to an oil injection pipe (3310); and a narrow hole (339) is provided on the inner side surface of the storage body (337) close to the oil injection pipe (3310).

10. A rotary cylinder for centering and clamping a workpiece according to claim 9, characterized in that: The air pump assembly (35) comprises a pump body (351), a support plate (352) being fixedly connected to the surface of the pump body (351), and a side of the support plate (352) away from the pump body (351) being fixedly connected to the top of the bottom plate (1), both ends of the pump body (351) being fixedly connected to serpentine tubes (353), and both ends of the two serpentine tubes (353) away from each other being fixedly connected to connecting tubes (354), and both ends of the two connecting tubes (354) away from the serpentine tubes (353) being fixedly connected to ends of the two cylinders (332) away from each other.

Images