Intelligent hydraulic chuck capable of controlling clamping force

Abstract

The invention relates to the technical field of hydraulic chucks, and discloses a clamping-force-controllable intelligent hydraulic chuck which comprises a shell and a hydraulic system and further comprises a supporting device, a lubricating device, a recycling device and a limiting device. The inner wall of the shell is rotatably connected with a rotating rod, the surface of the rotating rod is fixedly connected with a rotating plate, the output end of the hydraulic system is fixedly connected with a guide block, the inner wall of the shell is slidably connected with a moving block through a reset assembly, and the inner wall of the moving block is fixedly provided with a clamping block. The supporting device comprises a supporting plate, a supporting rod, an elastic telescopic rod, an inclined block, a rolling wheel, an elastic telescopic column and a pressure sensor, secondary clamping can be conducted on a metal pipe from the inner wall, the clamping force of the clamping blocks can be controlled, a workpiece can be clamped more conveniently and rapidly, damage to the workpiece during clamping is reduced, clamping is firmer, and the clamping efficiency is improved. And the stability of the workpiece during high-speed rotation of the chuck is improved.

Description

Technical Field

[0001] This invention relates to the field of hydraulic chuck technology, specifically to an intelligent hydraulic chuck with controllable clamping force. Background Technology

[0002] A hydraulic chuck is a clamping device that uses hydraulic principles to clamp and release workpieces. They are commonly used in machining, especially in applications requiring high precision, high rigidity, and workpiece rotation.

[0003] Patent application number CN201922498560.5 relates to the field of electric chuck technology, and more particularly to an electric chuck with automatically adjustable clamping force. The chuck includes an electric chuck, a clamping block, a movable plate, a first push rod, a second push rod, a movable head, and a buffer spring. The clamping block is movably connected to the electric chuck, and a movable cavity is formed inside the clamping block. The movable plate is movably connected inside the movable cavity. The first and second push rods are symmetrically fixedly connected to one side of the movable plate. A through-hole is symmetrically formed on one side of the clamping block. This patent features three clamping... When the blocks move relative to each other to clamp the product, the movable head will contact the outer wall of the product. The buffer spring has a certain compression force and rebound force, which buffers the movable head through the movable plate, the first push rod and the second push rod. This can convert rigid clamping into flexible clamping, preventing damage to brittle products during clamping operations and improving practicality. However, when this device rotates at high speed, the flexible clamping can easily lead to insufficient clamping force, causing the workpiece to detach and fly out, which poses a safety hazard. Therefore, an intelligent hydraulic chuck with controllable clamping force is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an intelligent hydraulic chuck with controllable clamping force, which addresses the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: an intelligent hydraulic chuck with controllable clamping force, comprising a housing and a hydraulic system, and further comprising a support device, a lubrication device, a recovery device, and a limiting device; a rotating rod is rotatably connected to the inner wall of the housing, a rotating plate is fixedly connected to the surface of the rotating rod, a guide block is fixedly connected to the output end of the hydraulic system, a moving block is slidably connected to the inner wall of the housing through a reset assembly, and a clamping block is fixedly installed on the inner wall of the moving block; the support device includes a support plate, a support rod, an elastic telescopic rod, an inclined block, a roller, an elastic telescopic column, and a pressure sensor, the support plate is fixedly connected to the inner wall of the housing, and the support... The rod is fixedly connected to the bottom of the support plate; the elastic telescopic rod is fixedly connected to the surface of the support rod; the inclined block is fixedly connected to the end of the elastic telescopic rod away from the support rod; the roller is rotatably connected to the inner wall of the inclined block; the elastic telescopic column is fixedly connected to the side of the inclined block near the elastic telescopic rod; and the pressure sensor is fixedly connected to the inner wall of the support rod. The lubrication device is located inside the housing; the recovery device is located inside the moving block; and the limiting device is located inside the clamping block. The surface of the elastic telescopic column is slidably connected to the inner wall of the support rod; a spring is sleeved on the surface of the elastic telescopic column, and the two ends of the spring are respectively connected to the surface of the support rod and the side of the inclined block near the elastic telescopic rod. The pressure sensors are electrically connected to the hydraulic system, and the surface of the rotating plate is in contact with the inner wall of the housing. When the device clamps a metal tube, the metal tube is first placed between the three clamping blocks and inserted into the surface of the three inclined blocks. The inclined blocks are guided by the inclined surfaces and enter the inner wall of the metal tube. During this process, the inclined blocks move towards the support rod, compressing the elastic telescopic rod and pushing the elastic telescopic column. When the elastic telescopic column moves, it enters the support rod and contacts the pressure sensor. The elastic telescopic column applies pressure to the pressure sensor. When the three inclined blocks clamp the metal tube, the pressure detected by the pressure sensor remains constant. When the pressure of the pressure sensor suddenly increases... When the clamping force of the wedge block is too large, it causes the metal tube to deform, which in turn moves the wedge block and applies pressure to the pressure sensor. At this time, the pressure sensor will immediately cut off the hydraulic system to reduce damage to the workpiece. The hydraulic system drives the guide block to move, which in turn drives the rotating plate to rotate. The rotating plate will drive the moving block and clamping block to move and clamp the workpiece. The distance that the hydraulic system drives the guide block to move can control the clamping force of the clamping block, making the workpiece clamping more convenient and faster and reducing damage. The rollers can make the wedge block move better on the inner wall of the metal tube, preventing it from being scratched and worn by the inner wall of the metal tube, and clamping it more firmly, improving the stability of the workpiece when the chuck rotates at high speed.

[0006] Preferably, the lubrication device includes a moving rod, a cam, an oil groove, a transmission block, a sliding plate, a guide groove, and a through hole. The moving rod is slidably connected to the inner wall of the housing via a spring. The cam is fixedly connected to the surface of the rotating rod. The oil groove is located on the inner wall of the housing. The transmission block is fixedly connected to the bottom end of the moving rod. The sliding plate is slidably connected to the inner wall of the housing via an elastic element. The oil groove is located inside the sliding plate. The through hole is located on the inner wall of the housing. The lubrication device also includes an arc-shaped rod, a locking block, and a stirring rod. The arc-shaped rod is fixedly connected to the surface of the transmission block. The locking block is slidably connected to the surface of the arc-shaped rod. The stirring rod is fixedly connected to the surface of the locking block. The surface of the transmission block after movement contacts the side of the sliding plate away from the housing. The surface behind the cam contacts the top end of the moving rod. The guide groove communicates with the through hole after movement. When the rotating plate rotates, it drives the cam to rotate, and the cam pushes the moving rod downwards. The moving rod drives the transmission block downwards, which in turn pushes the sliding plate through the inclined plane, connecting the guide groove on the sliding plate with the through hole on the inner wall of the housing. This allows the oil tank to connect with the outside of the housing, enabling the lubricating oil in the oil tank to flow out through the guide groove and through hole to the surface of the moving block. This makes the sliding between the moving block and the housing smoother and prevents the friction coefficient from being affected by prolonged movement, which could cause the moving block to jam on the inner wall of the housing and affect the clamping effect of the workpiece. When the transmission block moves, it drives the arc rod to move as well. The arc rod drives the stirring rod on the clamping block to agitate the oil in the oil tank, thereby improving the fluidity of the oil and facilitating its subsequent outflow. After the device has clamped the workpiece, it is necessary to rotate the workpiece for further processing. At this time, the housing will rotate, and the centrifugal force of the rotating housing will cause the clamping block to slide on the arc rod. The arc rod will drive the stirring rod to further agitate the lubricating oil in the oil tank.

[0007] Preferably, the recovery device includes oil-absorbing cotton and a filter plate. The oil-absorbing cotton is installed on the inner wall of the moving block, and the filter plate is slidably connected to the inner wall of the moving block, with the surface of the filter plate in contact with the surface of the oil-absorbing cotton. The recovery device also includes a transmission rod, a threaded rod, and a slide rod. The slide rod is slidably connected to the inner wall of the housing via a spline, and the transmission rod is rotatably connected to the inner wall of the housing via a torsion spring. The threaded rod is fixedly connected to the side of the transmission rod near the slide rod, with its surface threadedly connected to the inner wall of the slide rod. The surface of the transmission rod is in contact with the surface of the cam. When lubricating oil flows onto the moving block, The oil-absorbing cotton in the moving block absorbs and stores excess oil through the filter plate, preventing excessive lubricating oil from being wasted and extending the service life of the lubricating oil. When the rotating plate rotates and resets, the moving block also moves and resets. At this time, the rotating plate drives the cam to reset via the rotating rod. When the cam rotates and resets, it pushes the transmission rod to rotate, which in turn drives the threaded rod to rotate. The threaded rod drives the slide rod, which is limited by the housing and cannot rotate, to move. The slide rod pushes the filter plate to move, and the filter plate squeezes the oil-absorbing cotton, causing the oil stored in the cotton to be squeezed out. Then, when the moving block resets and moves, it will lubricate the oil again, improving the lubrication effect.

[0008] Preferably, the limiting device includes a guide plate, an arc-shaped plate, a limiting plate, and a rubber block. The guide plate is slidably connected to the inner wall of the clamping block via an elastic element. The arc-shaped plate is rotatably connected to the inner wall of the clamping block via a torsion spring. The limiting plate is rotatably connected to the inner wall of the clamping block via a torsion spring. The rubber block is fixedly connected to the side of the limiting plate away from the arc-shaped plate. The limiting device also includes a clamping plate, a scraper, and a clamping rod. The clamping plate is slidably connected to the inner wall of the clamping block. The scraper is fixedly connected to the surface of the clamping plate. The clamping rod is fixedly connected to the surface of the guide plate. The scraper's side near the clamping plate contacts the surface of the clamping block. The surface of the clamping plate has a groove. The surface of the clamping rod contacts the inner wall of the groove. One side of the arc-shaped plate contacts the surface of the limiting plate, and the other side of the arc-shaped plate contacts the surface of the guide plate. When the moving block drives the clamping block to clamp the workpiece, the clamping block... The guide plate initially contacts the workpiece surface. As the clamping block continues to move and hold the workpiece, the guide plate is pushed in the opposite direction by the workpiece and moves into the clamping block. The movement of the guide plate pushes the arc plate to rotate, which in turn pushes the limiting plate to rotate. The limiting plate then rotates the rubber block, causing it to press tightly against the workpiece surface. This increases the clamping area and further enhances the clamping stability. The movement of the guide plate also moves the locking lever, which moves in the slot of the locking plate and pushes the locking plate through the inclined slot. The locking plate then moves the scraper on the clamping surface of the clamping block. After the workpiece is clamped, the elastic element resets the guide plate, and the scraper also resets. The reset scraper removes machining debris from the clamping surface of the clamping block, preventing debris from remaining between the workpiece and the clamping block during subsequent clamping, which could cause indentations or damage to the workpiece surface.

[0009] The present invention, by adopting the above technical solution, can bring the following beneficial effects:

[0010] 1. This intelligent hydraulic chuck with controllable clamping force operates through the coordinated movement of its housing, support plate, support rod, elastic telescopic rod, wedge block, roller, elastic telescopic column, pressure sensor, hydraulic system, guide block, rotating plate, rotating rod, moving block, and clamping block. When clamping a metal tube, the tube is first placed between the three clamping blocks and inserted into the surface of the three wedge blocks. The wedge blocks are guided by the inclined surfaces and enter the inner wall of the metal tube. During this process, the wedge blocks move towards the support rod, compressing the elastic telescopic rod and pushing the elastic telescopic column. As the elastic telescopic column moves, it enters the support rod and contacts the pressure sensor, which then applies pressure to the sensor. When the three wedge blocks clamp the metal tube, the pressure detected by the pressure sensor remains constant. In a changing state, when the pressure sensor suddenly increases, it indicates that the clamping force of the wedge block is too large, causing the metal tube to deform and thus moving the wedge block and applying pressure to the pressure sensor. At this time, the pressure sensor will immediately cut off the hydraulic system to reduce workpiece damage. The hydraulic system then moves the guide block, which in turn drives the rotating plate to rotate. The rotating plate will then move the moving block and clamping block to clamp the workpiece. The distance the hydraulic system moves the guide block can control the clamping force of the clamping block, making workpiece clamping more convenient and faster, and reducing workpiece damage during clamping. The rollers allow the wedge block to move better on the inner wall of the metal tube, preventing it from being scratched or worn by the inner wall of the metal tube, and clamping it more firmly, improving the stability of the workpiece when the chuck rotates at high speed.

[0011] 2. This intelligent hydraulic chuck with controllable clamping force operates through the coordinated movement of a moving rod, cam, oil groove, transmission block, slide plate, guide groove, through hole, arc rod, clamping block, and stirring rod. When the rotating plate rotates, it drives the cam to rotate, which in turn pushes the moving rod downwards. The moving rod then drives the transmission block downwards, and the transmission block pushes the slide plate through an inclined plane. This allows the guide groove on the slide plate to connect with the through hole on the inner wall of the housing, thus connecting the oil groove with the outside of the housing. This allows the lubricating oil in the oil groove to flow out through the guide groove and through hole to the surface of the moving block, making the sliding between the moving block and the housing smoother. This prevents the friction coefficient between the moving block and the housing from being affected by prolonged movement, which could cause the moving block to jam when moving on the inner wall of the housing, thus affecting the clamping effect of the workpiece. When the transmission block moves, it drives the arc rod to move as well. The arc rod drives the stirring rod on the clamping block to agitate the oil inside the oil groove, thereby improving the fluidity of the oil and facilitating its subsequent outflow.

[0012] 3. This intelligent hydraulic chuck with controllable clamping force works in conjunction with oil-absorbing cotton, a filter plate, a transmission rod, a threaded rod, and a sliding rod. When lubricating oil flows onto the moving block, the oil-absorbing cotton in the moving block absorbs and stores excess oil through the filter plate, preventing excessive lubricating oil from being wasted and extending the service life of the lubricating oil. When the rotating plate rotates to its reset position, the moving block also moves to its reset position. At this time, the rotating plate drives the cam to reset via the rotating rod. When the cam rotates to its reset position, it pushes the transmission rod to rotate, which in turn drives the threaded rod to rotate. The threaded rod, through its threads, drives the sliding rod, which is limited by the housing and cannot rotate, to move. The sliding rod pushes the filter plate to move, and the filter plate squeezes the oil-absorbing cotton, causing the oil stored in the oil-absorbing cotton to be squeezed out. Then, when the moving block resets and moves, it will lubricate it again, improving the lubrication effect.

[0013] 4. This intelligent hydraulic chuck with controllable clamping force operates through the coordinated operation of a guide plate, an arc plate, a limit plate, a rubber block, a clamping plate, a scraper, and a clamping rod. When the moving block drives the clamping block to clamp the workpiece, the guide plate on the clamping block will first contact the surface of the workpiece. As the clamping block continues to move and clamp, the guide plate will be pushed in the opposite direction by the workpiece and move into the clamping block. When the guide plate moves, it will push the arc plate to rotate, the arc plate will push the limit plate to rotate, and the limit plate will drive the rubber block to rotate. At this time, the limit plate will drive the rubber block to press tightly against the surface of the workpiece, thereby increasing the clamping area of ​​the workpiece and further improving its clamping stability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the hydraulic system structure of the present invention;

[0016] Figure 3 This is a schematic diagram of the support plate structure of the present invention;

[0017] Figure 4 This is a half-sectional view of the support rod structure of the present invention;

[0018] Figure 5 This is a schematic diagram of the cam structure of the present invention;

[0019] Figure 6 This is a schematic diagram of the oil box structure of the present invention;

[0020] Figure 7 This is a schematic diagram of the transmission block structure of the present invention;

[0021] Figure 8 This is a half-sectional view of the movable block structure of the present invention;

[0022] Figure 9 This is a schematic diagram of the guide plate structure of the present invention.

[0023] In the diagram: 1. Shell; 11. Support plate; 12. Support rod; 13. Elastic telescopic rod; 14. Inclined block; 15. Roller; 16. Elastic telescopic column; 17. Pressure sensor; 2. Hydraulic system; 3. Guide block; 4. Rotating plate; 41. Rotating rod; 5. Moving block; 6. Clamping block; 7. Lubrication device; 71. Moving rod; 72. Cam; 73. Oil groove; 74. Transmission block; 75. Slide plate; 76. Guide groove; 77. Through hole; 771. Arc rod; 772. Clamping block; 773. Stirring rod; 8. Recovery device; 81. Oil-absorbing cotton; 82. Filter plate; 821. Transmission rod; 822. Threaded rod; 823. Slide rod; 9. Limiting device; 91. Guide plate; 92. Arc plate; 93. Limiting plate; 94. Rubber block; 941. Clamping plate; 942. Scraper; 943. Clamping rod. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-7One embodiment of the present invention is: an intelligent hydraulic chuck with controllable clamping force, comprising a housing 1 and a hydraulic system 2, and further comprising a support device, a lubrication device 7, a retraction device 8, and a limiting device 9; a rotating rod 41 is rotatably connected to the inner wall of the housing 1, a rotating plate 4 is fixedly connected to the surface of the rotating rod 41, a guide block 3 is fixedly connected to the output end of the hydraulic system 2, a moving block 5 is slidably connected to the inner wall of the housing 1 through a reset assembly, and a clamping block 6 is fixedly installed on the inner wall of the moving block 5; the support device includes a support plate 11, a support rod 12, an elastic telescopic rod 13, an inclined block 14, a roller 15, an elastic telescopic column 16, and a pressure sensor 17, the support plate 11 is fixedly connected to the inner wall of the housing 1, and the support rod 12 is fixedly connected to the support plate 11. At the bottom, the elastic telescopic rod 13 is fixedly connected to the surface of the support rod 12, the inclined block 14 is fixedly connected to the end of the elastic telescopic rod 13 away from the support rod 12, the roller 15 is rotatably connected to the inner wall of the inclined block 14, the elastic telescopic column 16 is fixedly connected to the side of the inclined block 14 near the elastic telescopic rod 13, and the pressure sensor 17 is fixedly connected to the inner wall of the support rod 12. When the device clamps the metal tube, the metal tube is first placed between the three clamping blocks 6 and inserted into the surface of the three inclined blocks 14. The inclined blocks 14 are guided by the inclined surface and enter the inner wall of the metal tube. During this process, the inclined blocks 14 will move towards the support rod 12, compress the elastic telescopic rod 13 and push the elastic telescopic column 16 to move. When the elastic telescopic column 16 moves, it will enter the support rod 12 and interact with the pressure sensor. The pressure sensor 17 is in contact with the pressure tube, and the elastic telescopic column 16 applies pressure to the pressure sensor 17. When the three inclined blocks 14 clamp the metal tube, the pressure detected by the pressure sensor 17 remains constant. When the pressure of the pressure sensor 17 suddenly increases, it means that the clamping force of the inclined block 14 is too large, causing the metal tube to deform and thus move the inclined block 14 and apply pressure to the pressure sensor 17. At this time, the pressure sensor 17 will immediately cut off the hydraulic system 2 to reduce damage to the workpiece. The lubrication device 7 is located inside the housing 1, the recovery device 8 is located inside the moving block 5, and the limiting device 9 is located inside the clamping block 6. The surface of the elastic telescopic column 16 is slidably connected to the inner wall of the support rod 12, and a spring is sleeved on the surface of the elastic telescopic column 16. The two ends of the spring are in contact with the surface of the support rod 12 and the side of the inclined block 14 near the elastic telescopic rod 13, respectively. The pressure sensor 17 is electrically connected to the hydraulic system 2. The surface of the rotating plate 4 is in contact with the inner wall of the housing 1. The hydraulic system 2 drives the guide block 3 to move, thereby pushing the rotating plate 4 to rotate. The rotating plate 4 will push the moving block 5 and the clamping block 6 to move and clamp the workpiece. The distance that the hydraulic system 2 drives the guide block 3 to move can control the clamping force of the clamping block 6, making the workpiece clamping more convenient and faster, and reducing damage. The roller 15 can make the inclined block 14 move better on the inner wall of the metal tube, preventing it from being scratched and worn by the inner wall of the metal tube, and clamping it more firmly, improving the stability of the workpiece when the chuck rotates at high speed.

[0026] The lubrication device 7 includes a moving rod 71, a cam 72, an oil groove 73, a transmission block 74, a sliding plate 75, a guide groove 76, and a through hole 77. The moving rod 71 is slidably connected to the inner wall of the housing 1 by a spring. The cam 72 is fixedly connected to the surface of the rotating rod 41. The oil groove 73 is formed in the inner wall of the housing 1. The transmission block 74 is fixedly connected to the bottom end of the moving rod 71. The sliding plate 75 is slidably connected to the inner wall of the housing 1 by an elastic element. The oil groove 73 is formed inside the sliding plate 75. The through hole 77 is formed in the inner wall of the housing 1. When the rotating plate 4 rotates, it will drive the cam 72. Rotation causes cam 72 to push moving rod 71 downwards, which in turn drives transmission block 74 downwards. Transmission block 74 then pushes slide plate 75 forward via inclined plane, connecting guide groove 76 on slide plate 75 with through hole 77 on inner wall of housing 1. This connects oil groove 73 with the outside of housing 1, allowing lubricating oil in oil groove 73 to flow out through guide groove 76 and through hole 77 to the surface of moving block 5. This makes sliding between moving block 5 and housing 1 smoother and prevents friction coefficient from being affected by prolonged movement, thus preventing moving block 5 from slipping. When moving along the inner wall of housing 1, the lubrication device 7 experiences jamming, which affects the clamping effect of the workpiece. The lubrication device 7 also includes an arc-shaped rod 771, a locking block 772, and a stirring rod 773. The arc-shaped rod 771 is fixedly connected to the surface of the transmission block 74, the locking block 772 is slidably connected to the surface of the arc-shaped rod 771, and the stirring rod 773 is fixedly connected to the surface of the locking block 772. After the transmission block 74 moves, its surface contacts the side of the sliding plate 75 away from housing 1. The surface behind the cam 72 contacts the top end of the moving rod 71. After the guide groove 76 moves, it contacts the through hole 77. The components are interconnected. When the transmission block 74 moves, it will drive the arc rod 771 to move together. The arc rod 771 will drive the stirring rod 773 on the clamping block 772 to stir the oil inside the oil tank 73, thereby improving the fluidity of the oil and facilitating its subsequent outflow. After the device clamps the workpiece, it is necessary to drive the workpiece to rotate for processing. At this time, the housing 1 will rotate. The centrifugal force of the housing 1 during rotation will drive the clamping block 772 to slide on the arc rod 771. The arc rod 771 will drive the stirring rod 773 to further stir the lubricating oil in the oil tank 73.

[0027] Working principle: When the device clamps a metal tube, the metal tube is first placed between the three clamping blocks 6 and inserted into the surface of the three inclined blocks 14. The inclined blocks 14 are guided by the inclined surfaces and enter the inner wall of the metal tube. During this process, the inclined blocks 14 move towards the support rod 12, compressing the elastic telescopic rod 13 and pushing the elastic telescopic column 16 to move. When the elastic telescopic column 16 moves, it enters the support rod 12 and contacts the pressure sensor 17. The elastic telescopic column 16 applies pressure to the pressure sensor 17. When the three inclined blocks 14 clamp the metal tube, the pressure detected by the pressure sensor 17 remains constant. When the pressure of the pressure sensor 17 suddenly increases, it means that the clamping force of the inclined blocks 14 is too large. The deformation of the metal tube causes the inclined block 14 to move and apply pressure to the pressure sensor 17. At this time, the pressure sensor 17 will immediately cut off the hydraulic system 2 to reduce the damage to the workpiece. The hydraulic system 2 drives the guide block 3 to move, thereby pushing the rotating plate 4 to rotate. The rotating plate 4 will push the moving block 5 and the clamping block 6 to move and clamp the workpiece. The distance that the hydraulic system 2 drives the guide block 3 to move can control the clamping force of the clamping block 6, making the workpiece clamping more convenient and faster and reducing damage. The roller 15 can make the inclined block 14 move better on the inner wall of the metal tube, preventing it from being scratched and worn by the inner wall of the metal tube, and clamping it more firmly, improving the stability of the workpiece when the chuck rotates at high speed.

[0028] When the rotating plate 4 rotates, it drives the cam 72 to rotate. The cam 72 pushes the moving rod 71 downward, which in turn drives the transmission block 74 downward. The transmission block 74 pushes the sliding plate 75 through the inclined plane, causing the guide groove 76 on the sliding plate 75 to connect with the through hole 77 on the inner wall of the housing 1. This connects the oil groove 73 with the outside of the housing 1, allowing the lubricating oil in the oil groove 73 to flow out through the guide groove 76 and the through hole 77 to the surface of the moving block 5. This makes the sliding between the moving block 5 and the housing 1 smoother and prevents the friction coefficient between the moving block 5 and the housing 1 from being affected by prolonged movement, thus preventing the moving block 5 from slipping on the housing 1. 1. When the inner wall moves, it gets stuck, which affects the clamping effect of the workpiece. When the transmission block 74 moves, it will drive the arc rod 771 to move together. The arc rod 771 will drive the stirring rod 773 on the clamping block 772 to stir the oil in the oil tank 73, thereby improving the fluidity of the oil and facilitating the subsequent flow of the oil. After the device clamps the workpiece, it is necessary to drive the workpiece to rotate for processing. At this time, the housing 1 will rotate. The centrifugal force of the housing 1 during rotation will drive the clamping block 772 to slide on the arc rod 771. The arc rod 771 will drive the stirring rod 773 to further stir the lubricating oil in the oil tank 73.

[0029] Please see Figure 8-9Based on the above embodiments, in another embodiment of the present invention, the recovery device 8 includes an oil-absorbing cotton 81 and a filter plate 82. The oil-absorbing cotton 81 is installed on the inner wall of the moving block 5, and the filter plate 82 is slidably connected to the inner wall of the moving block 5. The surface of the filter plate 82 is in contact with the surface of the oil-absorbing cotton 81. When lubricating oil flows onto the moving block 5, the oil-absorbing cotton 81 in the moving block 5 will absorb and store the excess oil through the filter plate 82, preventing excessive lubricating oil from being wasted and also extending the service life of the lubricating oil. The recovery device 8 also includes a transmission rod 821, a threaded rod 822, and a sliding rod 823. The sliding rod 823 is slidably connected to the inner wall of the housing 1 via a spline, the transmission rod 821 is rotatably connected to the inner wall of the housing 1 via a torsion spring, and the threaded rod 822 is fixedly connected to the inner wall of the housing 1. On the side of the transmission rod 821 near the slide rod 823, the surface of the threaded rod 822 is threadedly connected to the inner wall of the slide rod 823. The surface of the transmission rod 821 is in contact with the surface of the cam 72. When the rotating plate 4 rotates to reset, the moving block 5 also moves to reset. At this time, the rotating plate 4 drives the cam 72 to reset through the rotating rod 41. When the cam 72 rotates to reset, it pushes the transmission rod 821 to rotate. The transmission rod 821 drives the threaded rod 822 to rotate. The threaded rod 822 drives the slide rod 823, which is limited by the housing 1 and cannot rotate, to move through the thread. The slide rod 823 pushes the filter plate 82 to move. The filter plate 82 squeezes the oil-absorbing cotton 81, causing the oil stored in the oil-absorbing cotton 81 to be squeezed out. Then, when the moving block 5 resets and moves, it will lubricate it again, improving the lubrication effect.

[0030] The limiting device 9 includes a guide plate 91, an arc-shaped plate 92, a limiting plate 93, and a rubber block 94. The guide plate 91 is slidably connected to the inner wall of the clamping block 6 via an elastic element. The arc-shaped plate 92 is rotatably connected to the inner wall of the clamping block 6 via a torsion spring. The limiting plate 93 is rotatably connected to the inner wall of the clamping block 6 via a torsion spring. The rubber block 94 is fixedly connected to the side of the limiting plate 93 away from the arc-shaped plate 92. When the moving block 5 drives the clamping block 6 to clamp the workpiece, the guide plate 91 on the clamping block 6 will first contact the surface of the workpiece. As the clamping block 6 continues to move... During dynamic clamping, the guide plate 91 is pushed in the opposite direction by the workpiece and moves into the clamping block 6. When the guide plate 91 moves, it pushes the arc plate 92 to rotate, which in turn pushes the limiting plate 93 to rotate. The limiting plate 93 then drives the rubber block 94 to rotate. At this time, the limiting plate 93 causes the rubber block 94 to press tightly against the surface of the workpiece, thereby increasing the clamping area of ​​the workpiece and further improving its clamping stability. The limiting device 9 also includes a clamping plate 941, a scraper 942, and a clamping rod 943. The clamping plate 941 is slidably connected to the clamping block 6. The inner wall of the guide plate 91 has a scraper 942 fixedly connected to the surface of the clamping plate 941, and a clamping rod 943 fixedly connected to the surface of the guide plate 91. The scraper 942 near the clamping plate 941 contacts the surface of the clamping block 6. The surface of the clamping plate 941 has a groove, and the surface of the clamping rod 943 contacts the inner wall of the groove. One side of the arc-shaped plate 92 contacts the surface of the limiting plate 93, and the other side of the arc-shaped plate 92 contacts the surface of the guide plate 91. When the guide plate 91 moves, it will drive the clamping rod 943 to move. The lever 943 moves in the slot in the clamping plate 941 and pushes the clamping plate 941 to move through the inclined slot. The clamping plate 941 drives the scraper 942 to move on the clamping surface of the clamping block 6. After the workpiece is clamped, the elastic element drives the guide plate 91 to reset. At the same time, the scraper 942 will also reset. The reset scraper 942 will scrape off the machining debris on the clamping surface of the clamping block 6 to prevent the debris from being left between the workpiece and the clamping block 6 when clamping the workpiece later, which would cause indentations or even damage to the surface of the workpiece.

[0031] Working principle: When lubricating oil flows onto the moving block 5, the oil-absorbing cotton 81 in the moving block 5 absorbs and stores the excess oil through the filter plate 82, preventing excessive lubricating oil from being wasted and extending the service life of the lubricating oil. When the rotating plate 4 rotates and resets, the moving block 5 also moves and resets. At this time, the rotating plate 4 drives the cam 72 to reset through the rotating rod 41. When the cam 72 rotates and resets, it pushes the transmission rod 821 to rotate. The transmission rod 821 drives the threaded rod 822 to rotate. The threaded rod 822 drives the slide rod 823, which is limited by the housing 1 and cannot rotate, to move through the thread. The slide rod 823 pushes the filter plate 82 to move. The filter plate 82 squeezes the oil-absorbing cotton 81, causing the oil stored in the oil-absorbing cotton 81 to be squeezed out. Then, when the moving block 5 resets and moves, it will be lubricated again, improving the lubrication effect.

[0032] When the moving block 5 drives the clamping block 6 to clamp the workpiece, the guide plate 91 on the clamping block 6 will first contact the surface of the workpiece. As the clamping block 6 continues to move and clamp, the guide plate 91 will be pushed in the opposite direction by the workpiece and move into the clamping block 6. When the guide plate 91 moves, it will push the arc plate 92 to rotate, the arc plate 92 will push the limiting plate 93 to rotate, and the limiting plate 93 will drive the rubber block 94 to rotate. At this time, the limiting plate 93 will drive the rubber block 94 to stick tightly to the surface of the workpiece, thereby increasing the clamping area of ​​the workpiece and further improving its clamping stability. When the guide plate 91 moves... When the device is activated, it will move the clamping rod 943. The clamping rod 943 will move in the slot in the clamping plate 941 and push the clamping plate 941 to move through the inclined slot. The clamping plate 941 will move the scraper 942 on the clamping surface of the clamping block 6. After the workpiece is clamped, the elastic element will drive the guide plate 91 to reset. At the same time, the scraper 942 will also reset. The reset scraper 942 will scrape off the machining debris on the clamping surface of the clamping block 6 to prevent the debris from being left between the workpiece and the clamping block 6 when clamping the workpiece later, which would cause indentations or even damage to the surface of the workpiece.

[0033] This invention provides an intelligent hydraulic chuck with controllable clamping force. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technologies.

Claims

1. An intelligent hydraulic chuck with controllable clamping force, comprising a housing (1) and a hydraulic system (2), characterized in that: It also includes a support device, a lubrication device (7), a recovery device (8), and a limiting device (9); A rotating rod (41) is rotatably connected to the inner wall of the housing (1), and a rotating plate (4) is fixedly connected to the surface of the rotating rod (41). A guide block (3) is fixedly connected to the output end of the hydraulic system (2). A moving block (5) is slidably connected to the inner wall of the housing (1) through a reset assembly. A clamping block (6) is fixedly installed on the inner wall of the moving block (5). The support device includes a support plate (11), a support rod (12), an elastic telescopic rod (13), an inclined block (14), a roller (15), an elastic telescopic column (16), and a pressure sensor (17). The support plate (11) is fixedly connected to the inner wall of the housing (1). The support rod (12) is fixedly connected to the bottom of the support plate (11). The elastic telescopic rod (13) is fixedly connected to the surface of the support rod (12). The inclined block (14) is fixedly connected to the end of the elastic telescopic rod (13) away from the support rod (12). The roller (15) is rotatably connected to the inner wall of the inclined block (14). The elastic telescopic column (16) is fixedly connected to the side of the inclined block (14) close to the elastic telescopic rod (13). The pressure sensor (17) is fixedly connected to the inner wall of the support rod (12). The lubrication device (7) is located inside the housing (1), the recycling device (8) is located inside the moving block (5), and the limiting device (9) is located inside the clamping block (6).

2. The intelligent hydraulic chuck with controllable clamping force according to claim 1, characterized in that: The surface of the elastic telescopic column (16) is slidably connected to the inner wall of the support rod (12). A spring is sleeved on the surface of the elastic telescopic column (16), and the two ends of the spring are in contact with the surface of the support rod (12) and the side of the inclined block (14) near the elastic telescopic column (13), respectively. The pressure sensor (17) is electrically connected to the hydraulic system (2), and the surface of the rotating plate (4) is in contact with the inner wall of the housing (1).

3. The intelligent hydraulic chuck with controllable clamping force according to claim 2, characterized in that: The lubrication device (7) includes a moving rod (71), a cam (72), an oil groove (73), a transmission block (74), a sliding plate (75), a guide groove (76), and a through hole (77). The moving rod (71) is slidably connected to the inner wall of the housing (1) by a spring. The cam (72) is fixedly connected to the surface of the rotating rod (41). The oil groove (73) is opened on the inner wall of the housing (1). The transmission block (74) is fixedly connected to the bottom end of the moving rod (71). The sliding plate (75) is slidably connected to the inner wall of the housing (1) by an elastic element. The oil groove (73) is opened inside the sliding plate (75). The through hole (77) is opened on the inner wall of the housing (1).

4. The intelligent hydraulic chuck with controllable clamping force according to claim 3, characterized in that: The lubrication device (7) further includes an arc rod (771), a locking block (772), and a stirring rod (773). The arc rod (771) is fixedly connected to the surface of the transmission block (74), the locking block (772) is slidably connected to the surface of the arc rod (771), and the stirring rod (773) is fixedly connected to the surface of the locking block (772).

5. The intelligent hydraulic chuck with controllable clamping force according to claim 4, characterized in that: The surface of the transmission block (74) after it moves comes into contact with the side of the slide plate (75) away from the housing (1), the surface behind the cam (72) comes into contact with the top of the moving rod (71), and the guide groove (76) after it moves communicates with the through hole (77).

6. The intelligent hydraulic chuck with controllable clamping force according to claim 5, characterized in that: The recycling device (8) includes an oil-absorbing cotton (81) and a filter plate (82). The oil-absorbing cotton (81) is installed on the inner wall of the moving block (5), and the filter plate (82) is slidably connected to the inner wall of the moving block (5). The surface of the filter plate (82) is in contact with the surface of the oil-absorbing cotton (81).

7. The intelligent hydraulic chuck with controllable clamping force according to claim 6, characterized in that: The recycling device (8) also includes a transmission rod (821), a threaded rod (822), and a slide rod (823). The slide rod (823) is slidably connected to the inner wall of the housing (1) via a spline. The transmission rod (821) is rotatably connected to the inner wall of the housing (1) via a torsion spring. The threaded rod (822) is fixedly connected to the side of the transmission rod (821) near the slide rod (823). The surface of the threaded rod (822) is threadedly connected to the inner wall of the slide rod (823). The surface of the transmission rod (821) is in contact with the surface of the cam (72).

8. The intelligent hydraulic chuck with controllable clamping force according to claim 7, characterized in that: The limiting device (9) includes a guide plate (91), an arc plate (92), a limiting plate (93), and a rubber block (94). The guide plate (91) is slidably connected to the inner wall of the clamping block (6) by an elastic element. The arc plate (92) is rotatably connected to the inner wall of the clamping block (6) by a torsion spring. The limiting plate (93) is rotatably connected to the inner wall of the clamping block (6) by a torsion spring. The rubber block (94) is fixedly connected to the side of the limiting plate (93) away from the arc plate (92).

9. The intelligent hydraulic chuck with controllable clamping force according to claim 8, characterized in that: The limiting device (9) further includes a clamping plate (941), a scraper (942), and a clamping rod (943). The clamping plate (941) is slidably connected to the inner wall of the clamping block (6), the scraper (942) is fixedly connected to the surface of the clamping plate (941), and the clamping rod (943) is fixedly connected to the surface of the guide plate (91).

10. The intelligent hydraulic chuck with controllable clamping force according to claim 9, characterized in that: The scraper (942) is in contact with the surface of the clamping block (6) on the side near the clamping plate (941). The surface of the clamping plate (941) is provided with a groove. The surface of the clamping rod (943) is in contact with the inner wall of the groove. One side of the arc plate (92) is in contact with the surface of the limiting plate (93). The other side of the arc plate (92) is in contact with the surface of the guide plate (91).

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