A valve seat processing and clamping tool and use method

Abstract

The present invention relates to the field of valve seat processing. The present invention discloses a valve seat processing clamping tool and a method of use. The problem to be solved by the present invention is that the existing valve seat generally needs to be fixed by a clamping and positioning device during processing, and both the inner wall and the outer wall of the valve seat need to be processed, and then the clamping part of the valve seat needs to be switched after processing, and the existing clamping device cannot achieve the switching of the valve seat, resulting in low processing efficiency of the valve seat. The present invention clamps the outer wall of the valve seat by an external clamping device, and the inner hole of the valve seat is clamped by an internal clamping device, thereby synchronously clamping the outer wall and the inner hole of the valve seat to adapt to different operating environments. Through this arrangement, under the drive of the driving motor, the driving rod can be rotated to different angles to switch the clamping and positioning of different parts of the valve seat, so that the valve seat can adapt to different processing equipment during the processing.

Description

Technical Field

[0001] The invention relates to the field of valve seat processing, and in particular to a valve seat processing clamping tool and a use method thereof. Background Art

[0002] The valve seat is a removable surface part in the valve, which is used to support the fully closed position of the valve core and form a sealing pair. Generally, the valve seat diameter is the maximum flow diameter of the valve. During the processing of the valve seat, a clamping mechanism is required to facilitate the effective processing.

[0003] The existing patent (Announcement No.: CN113843580B) discloses a valve seat processing clamping tool, including a valve seat and a special soft claw, a positioning ring and a positioning plug for fixing the position of the valve seat. The special soft claw is composed of two groups of first soft claws and two groups of second soft claws staggered on the outside of the valve seat. The first soft claw, the second soft claw, the positioning ring and the positioning plug can cooperate with a CNC lathe to complete all the processing contents of the inner hole, outer circle and end face of the high-precision valve seat. The valve seat processing clamping tool, by setting a positioning ring and a positioning plug to cooperate, makes the positioning ring against the valve seat to limit the position of the valve seat, and the positioning plug axially limits the valve seat, so that the valve seat is easy to be stably stressed when the CNC lathe is aligned for processing, thereby reducing the probability of deformation of the valve seat due to uneven force, so as to improve the product quality problems caused by the deformation of thin ring parts and improve the stability of the device during processing. In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art that have not been solved: when processing the existing valve seat, a clamping and positioning device is generally required to fix the valve seat, and both the inner wall and the outer wall of the valve seat need to be processed, and then after processing, the clamping part of the valve seat needs to be switched, but the existing clamping device cannot realize the switching of the valve seat, resulting in low processing efficiency of the valve seat. Summary of the invention

[0004] The purpose of the present invention is to provide a valve seat processing clamping tool and a method of use to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: a valve seat processing clamping tool, including a processing table, a clamping seat is fixedly arranged on the top of the processing table, an opening is arranged in the clamping seat, an internal clamping device for clamping the valve seat is arranged in the opening, an external clamping device for clamping the valve seat is arranged on the top of the clamping seat, a driving device is arranged on the outer wall of the processing table, an internal clamping control part that cooperates with the driving device is arranged on the top of the processing table, the internal clamping control part is in contact with the internal clamping device, an external clamping control part is arranged inside the processing table below the internal clamping control part, and the external clamping control part is in contact with the driving device, and the external clamping control part abuts against the external clamping device.

[0005] Preferably, the driving device includes a driving motor fixedly mounted on the outer wall of the processing table, the telescopic end of the driving motor is transmission-connected to a driving rod, the driving rod rotates in cooperation with the processing table, a first bevel gear is fixedly connected to the driving rod, a cam is also fixedly mounted on the driving rod, a rotating rod is rotatably mounted on the inner wall of the processing table, a second bevel gear is fixedly connected to the rotating rod, the first bevel gear rotates in cooperation with the second bevel gear, and the inner clamp control component is snap-fitted with the rotating rod.

[0006] The cam is provided with a toothed plate, and the toothed plate is connected with the toothed plate to form a toothed structure. The toothed plate is connected with the toothed plate to form a toothed structure. The toothed plate is connected with the toothed plate to form a toothed structure.

[0007] Preferably, the internal clamping device includes an adjusting disk rotatably arranged on the clamping seat, the bottom of the adjusting disk is fixedly connected to the rotating disk, the surface of the clamping seat is hingedly provided with three clamping arms around the circumference of the adjusting disk, and the adjusting disk is provided with an adjusting block corresponding to the three clamping arms, the adjusting block is rotatably cooperated with the adjusting disk, and the clamping arm extends into the adjusting block.

[0008] Preferably, the outer clamp control component includes an outer sleeve fixedly arranged on the inner wall of the processing table, a lifting rod is slidably arranged in the outer sleeve, a fixed plate is fixedly arranged on the top of the lifting rod, an elastic spring is sleeved on the lifting rod, the two ends of the elastic spring are respectively connected to the top of the outer sleeve and the bottom of the fixed plate, the driving rod drives the cam to rotate, the raised end of the cam contacts the upper end surface of the fixed plate, a clamping frame is fixedly arranged on the outer wall of the fixed plate, and the outer wall of the rotating sleeve at the telescopic end is connected with the clamping plate, and the clamping frame and the clamping plate are rotatably matched.

[0009] Preferably, the external clamp device includes a movable frame arranged relative to the outer wall of the processing table, a reset spring is provided on the movable frame, two ends of the reset spring are respectively connected to the side wall of the processing table and the top of the movable frame, a pressure plate is extended toward the processing table by the movable frame, a pulley is provided on the pressure plate, the pulley is in contact with the bottom of the fixed disk, and a fixed plate is extended toward the clamping seat from the top of the movable frame.

[0010] Preferably, an L-shaped slide groove is provided on the outer wall of the outer sleeve, an inner sleeve is also provided inside the outer sleeve, a spiral groove with a double helix arrangement is provided on the inner wall of the inner sleeve, a positioning rod engaged with the spiral groove is provided on the jacking rod, a clamping rod slidingly matched with the slide groove is provided on the outer wall of the inner sleeve, a transmission gear disc is rotatably provided on the inner bottom of the processing table, a rotating gear disc is fixedly provided on the outer wall of the rotating disc, a transmission rod is rotatably provided on the processing table, both ends of the transmission rod are fixedly connected with transmission gears, the two transmission gears are respectively meshed with the transmission gear disc and the rotating gear disc, and the transmission gear disc is engaged with the outer wall of the inner sleeve.

[0011] Preferably, the method for using the valve seat processing and clamping tool comprises the following steps:

[0012] S1: When the valve seat to be processed is placed in the opening in the clamping seat, the driving rod is rotated under the drive of the driving motor, the driving rod rotates to rotate the first bevel gear, the first bevel gear rotates to drive the second bevel gear to rotate, and the second bevel gear drives the rotating rod to rotate. When the rotating rod rotates, the rotating sleeve rod is connected to the rotating rod, and then driven by the rotating rod, the rotating sleeve rod can rotate synchronously, and the rotating sleeve rod drives the rotating frame to rotate around the center of the rotating sleeve rod. At this time, the pushing block in the limit frame on the rotating frame will contact the extended baffle on the rotating disk. After the pushing block contacts the protrusion, the extended baffle can drive the rotating disk to rotate under the drive of the pushing block, and the internal clamping device can be driven to internally clamp the valve seat in the opening under the drive of the rotating disk;

[0013] S2: When the second bevel gear rotates continuously and the rotating sleeve rod drives the limit frame to rotate continuously to the side of the blocking frame, the extended baffle on the rotating disk contacts the first block and stops driving the rotating disk to rotate, and the resistance rod on the limit frame contacts the inclined block on the blocking frame. Under the restriction of the inclined block, the resistance rod makes the limit block slide on the limit frame when the limit frame rotates. At this time, the limit block drives the push block to separate from the protrusion on the extended baffle. At this time, the rotating disk rotates in the opposite direction driven by the torsion spring and resets, thereby driving the internal clamping device to release the positioning of the inner hole of the valve seat. When the rotating disk resets, the protrusion on the extended baffle contacts the second block, and then when the rotating frame continues to rotate, the rotating disk can continue to rotate, controlling the internal clamping device to clamp the valve seat in the opening;

[0014] S3: The operator places the valve seat in the opening in the clamping seat. When the rotating disk rotates, the adjusting disk will drive the three adjusting blocks to move synchronously, so that the three adjusting blocks can drive the three clamping arms to expand outward in the inner hole of the valve seat, thereby clamping the inner hole of the valve seat;

[0015] S4: When the outer wall of the valve seat is clamped, the driving motor drives the driving rod to rotate, and the raised end of the cam contacts the upper surface of the fixed plate. At this time, the raised end of the cam squeezes the fixed plate, and the fixed plate moves downward under the drive of the cam, and the fixed plate drives the lifting rod to slide downward in the outer sleeve. When the fixed plate slides downward, the clamping frame arranged on the fixed plate drives the clamping plate to make the rotating sleeve rod move downward, and the clamping plate is connected with the telescopic end of the rotating sleeve rod, so as to drive the rotating sleeve rod to move downward. At this time, the part of the rotating sleeve rod that is clamped with the rotating rod will be separated, and the rotating sleeve rod and the rotating rod are not in a clamping state, so that when the driving rod rotates, the driving rod cannot drive the first bevel gear to rotate the second bevel gear, thereby making it impossible for the rotating plate to drive the inner clamping device to move, and in the process of the fixed plate moving downward, the fixed plate will contact the two pulleys, so that the pressure plate drives the moving frame to move downward, and the moving frame drives the fixed plate to press down and fix the valve seat on the clamping seat;

[0016] S5: After the outer clamp device clamps the outer wall of the valve seat, as the driving motor continues to drive the driving rod to rotate, the raised end of the cam will continue to squeeze the fixed plate downward, and when the fixed plate drives the lifting rod to continue to press down to the bottom of the outer sleeve, the inner cylinder will extend into the transmission gear plate driven by the two positioning rods on the lifting rod, and the outer wall of the inner cylinder and the transmission gear plate will be engaged. At this time, the bottom of the inner cylinder is blocked and cannot continue to move downward. When the lifting rod moves downward and drives the inner cylinder to move downward, the spiral groove on the inner cylinder will cause the inner cylinder to rotate, and at the same time, the clamping rod on the inner cylinder is located in the sliding groove on the outer sleeve. When the inner cylinder rotates at this time, it will drive the transmission toothed disc to rotate. After the transmission toothed disc contacts the transmission gear, the transmission rod rotates. The transmission gear at the end of the transmission rod away from the transmission toothed disc drives the rotating toothed disc to rotate. The rotating toothed disc drives the rotating disc to rotate. Because the rotating sleeve rod and the rotating rod are not in a clamping state at this time, it will not affect the use of the driving motor. At this time, the fixed disc is squeezed by the cam and is in a downward state. The outer clamp device clamps the outer wall of the valve seat, and the rotation of the rotating disc will cause the inner clamping device to clamp the inner hole of the valve seat, thereby simultaneously realizing the clamping operations of the outer wall and the inner hole of the valve seat.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] When the second bevel gear rotates continuously, the rotating sleeve rod drives the limit frame to rotate continuously to the side of the blocking frame, and the extended baffle on the rotating disk contacts the first block, which will stop driving the rotating disk to rotate, and the resistance rod on the limit frame will contact the inclined block on the blocking frame. Under the restriction of the inclined block, the resistance rod makes the limit block slide on the limit frame when the limit frame rotates. At this time, the limit block drives the pushing block to separate from the protrusion on the extended baffle plate. At this time, the rotating disk will rotate and reset in the opposite direction under the drive of the torsion spring, thereby driving the inner clamping device to release the inner hole positioning of the valve seat, and when the rotating disk is reset, the protrusion on the extended baffle plate will contact the second stopper, and then when the rotating frame continues to rotate, the rotating disk can continue to rotate, controlling the inner clamping device to clamp the valve seat in the opening, and through this arrangement, under the drive of the driving device, the inner clamp control component can drive the inner clamping device to clamp and position the inner hole of the valve seat.

[0019] In the present invention, when the outer wall of the valve seat is clamped, the driving motor drives the driving rod to rotate, and the raised end of the cam contacts the upper surface of the fixed plate. At this time, the raised end of the cam squeezes the fixed plate, and the fixed plate moves downward under the drive of the cam. The fixed plate drives the lifting rod to slide downward in the outer sleeve. When the fixed plate slides downward, the clamping frame arranged on the fixed plate drives the clamping plate to move the rotating sleeve rod downward. The clamping plate is connected to the telescopic end of the rotating sleeve rod, thereby driving the rotating sleeve rod to move downward. At this time, the part of the rotating sleeve rod that is clamped with the rotating rod will be separated. At this time, the rotating sleeve rod and the rotating rod It is not in a clamping state, and when the driving rod rotates, the driving rod cannot drive the first bevel gear to rotate the second bevel gear, thereby making it impossible for the rotating disk to drive the inner clamping device to move. During the downward movement of the fixed disk, the fixed disk will contact the two pulleys, so that the pressure plate drives the moving frame to move downward, and the moving frame will drive the fixed plate to press down and fix the valve seat on the clamping seat, thereby clamping the outer wall of the valve seat. Driven by the driving motor, the external clamp control component can drive the external clamp device to clamp the outer wall of the valve seat, so that external grinding equipment, drilling equipment and other instruments can process the inner wall of the valve seat.

[0020] In the present invention, after the outer clamp device clamps the outer wall of the valve seat, as the driving motor continues to drive the driving rod to rotate, the raised end of the cam will continue to squeeze the fixed plate downward, and when the fixed plate drives the lifting rod to continue to press down to the bottom of the outer sleeve, the inner cylinder will extend into the transmission gear plate driven by the two positioning rods on the lifting rod, and the outer wall of the inner cylinder and the transmission gear plate are engaged. At this time, after the bottom of the inner cylinder is blocked and cannot continue to move downward, the lifting rod moves downward to drive the inner cylinder to move downward, and the inner cylinder is rotated through the spiral groove on the inner cylinder, and at the same time, the clamping rod on the inner cylinder is located in the sliding groove on the outer sleeve. The rotation of the inner cylinder at this time will drive the transmission gear plate to rotate, and the transmission gear plate contacts the transmission gear to rotate the transmission rod, and the transmission rod moves away from the transmission The transmission gear at one end of the toothed disc drives the rotating toothed disc to rotate, and the rotating toothed disc drives the rotating disc to rotate. Because the rotating sleeve rod and the rotating rod are not in a clamping state at this time, it will not affect the use of the driving motor. At this time, the fixed disc is squeezed by the cam and is in a downward state. The outer clamp device clamps the outer wall of the valve seat, and the rotation of the rotating disc will cause the inner clamping device to clamp the inner hole of the valve seat, thereby synchronously clamping the outer wall and the inner hole of the valve seat, making the valve seat more stable and adaptable to different operating environments. Through this arrangement, under the drive of the driving motor, the driving rod can rotate to different angles to switch the clamping positioning of different parts of the valve seat, so that the valve seat can adapt to different processing equipment during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a sectional view of the three-dimensional structure of the present invention;

[0023] Figure 3 The three-dimensional structure of the driving device and the inner clamp control part of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 4 The three-dimensional structure of the driving device and the inner clamp control part of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 5 The three-dimensional structure of the inner clamp control member of the present invention is shown in FIG. Figure 1 ;

[0026] Figure 6 The three-dimensional structure of the inner clamp control member of the present invention is shown in FIG. Figure 2 ;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the inner clamping device of the present invention;

[0028] Figure 8 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0029] Fig. 9 The schematic diagram of the partial three-dimensional structure of the external fixture control member and the external fixture device of the present invention is shown in FIG. Figure 1 ;

[0030] Fig.10 The schematic diagram of the partial three-dimensional structure of the external fixture control member and the external fixture device of the present invention is shown in FIG. Figure 2 ;

[0031] Fig.11 The local three-dimensional structure of the present invention is cut away Figure 1 ;

[0032] Fig.12 The local three-dimensional structure of the present invention is cut away Figure 2 .

[0033] In the figure: 1, processing table; 11, clamping seat; 12, opening; 2, driving device; 21, driving motor; 22, driving rod; 23, first bevel gear; 24, cam; 25, rotating rod; 26, second bevel gear; 3, inner fixture control member; 31, rotating sleeve rod; 32, rotating disk; 33, torsion spring; 34, extension baffle; 35, protrusion; 36, rotating frame; 37, limit frame; 38, limit block; 39, pressure spring; 310, push block; 311, first block; 312, second block; 313, resistance rod; 314, blocking frame; 3 15. Oblique block; 4. Internal clamping device; 41. Adjusting plate; 42. Clamping arm; 43. Adjusting block; 5. External clamp control member; 51. External sleeve; 52. Slide groove; 53. Lifting rod; 54. Fixed plate; 55. Elastic spring; 56. Snap-on frame; 57. Snap-on plate; 6. External clamp device; 61. Moving frame; 62. Return spring; 63. Pressing plate; 64. Pulley; 65. Fixed plate; 7. Internal sleeve; 71. Spiral snap-on groove; 72. Positioning rod; 73. Clamping rod; 74. Transmission gear disc; 75. Rotating gear disc; 76. Transmission rod; 77. Transmission gear. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 12The present invention provides a technical solution: a valve seat processing and clamping tool, comprising a processing table 1, a clamping seat 11 is fixedly arranged on the top of the processing table 1, an opening 12 is arranged in the clamping seat 11, an inner clamping device 4 for clamping the valve seat is arranged in the opening 12, an outer clamping device 6 for clamping the valve seat is arranged on the top of the clamping seat 11, a driving device 2 is arranged on the outer wall of the processing table 1, an inner clamp control part 3 which is transmission-matched with the driving device 2 is arranged on the top of the processing table 1, the inner clamp control part 3 is in contact with the inner clamping device 4, an outer clamp control part 5 is arranged inside the processing table 1 below the inner clamp control part 3, and the outer clamp control part 5 is in contact with the driving device 2, and the outer clamp control part 5 is in contact with the outer clamp device 6.

[0036] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the driving device 2 includes a driving motor 21 fixedly arranged on the outer wall of the processing table 1, the telescopic end of the driving motor 21 is drivingly connected to a driving rod 22, the driving rod 22 is rotatably matched with the processing table 1, a first bevel gear 23 is fixedly connected to the driving rod 22, a cam 24 is also fixedly arranged on the driving rod 22, a rotating rod 25 is rotatably arranged on the inner wall of the processing table 1, a second bevel gear 26 is fixedly connected to the rotating rod 25, the first bevel gear 23 is rotatably matched with the second bevel gear 26, and the inner fixture control member 3 is snap-fitted with the rotating rod 25;

[0037] The inner clamp control member 3 includes a rotating sleeve rod 31 rotatably arranged on the top of the processing table 1, and the rotating sleeve rod 31 is telescopically arranged at one end facing the rotating rod 25, and the rotating sleeve rod 31 is snap-fitted with the rotating rod 25, and a rotating disk 32 is rotatably arranged at the bottom of the opening 12 of the clamping seat 11, and the rotating disk 32 is transmission-matched with the inner clamping device 4, and a torsion spring 33 is connected between the rotating disk 32 and the clamping seat 11, and an extension baffle 34 is fixedly connected to the side of the rotating disk 32 facing the rotating sleeve rod 31, and a protrusion 35 is arranged on the extension baffle 34, and a rotating frame 36 is fixedly connected to the other end of the rotating sleeve rod 31 away from the rotating rod 25, and a limiting frame 37 is arranged on the rotating frame 36. A limit block 38 is slidably arranged in the positioning frame 37, a pressure spring 39 is arranged between the limit block 38 and the limit frame 37, a push block 310 is fixedly arranged on the outer wall of the limit block 38, the push block 310 contacts the protrusion 35 on the extended baffle 34, a first stop block 311 and a second stop block 312 are arranged on the inner top surface of the clamping seat 11 around the circumference of the rotating frame 36, an outer wall of the limit block 38 is located below the push block 310 and a resisting rod 313 is fixedly arranged, a blocking frame 314 is extended from the top of the processing table 1 toward the direction of the limit frame 37, a wedge-shaped inclined block 315 is arranged on the blocking frame 314, and the resisting rod 313 abuts against the inclined block 315;

[0038] When the valve seat to be processed is placed in the opening 12 in the clamping seat 11, the driving rod 22 is rotated under the drive of the driving motor 21, and the driving rod 22 rotates to rotate the first bevel gear 23, and the first bevel gear 23 rotates to drive the second bevel gear 26 to rotate, and the second bevel gear 26 drives the rotating rod 25 to rotate. When the rotating rod 25 rotates, the rotating sleeve rod 31 is clamped on the rotating rod 25, and then the rotating sleeve rod 31 can be driven to rotate synchronously under the drive of the rotating rod 25, and the rotating sleeve rod 31 drives the rotating frame 36 to rotate about the center of the rotating sleeve rod 31. At this time, the pushing block 310 in the limiting frame 37 on the rotating frame 36 will contact the extended baffle 34 on the rotating disk 32. After the pushing block 310 contacts the protrusion 35, the extended baffle 34 can drive the rotating disk 32 to rotate under the drive of the pushing block 310, and the rotating disk 32 can drive the internal clamping device 4 to internally clamp the valve seat in the opening 12;

[0039] When the second bevel gear 26 continues to rotate, the rotating sleeve rod 31 drives the limit frame 37 to rotate continuously to the side of the blocking frame 314, and the extended baffle 34 on the rotating disk 32 contacts the first block 311 and stops driving the rotating disk 32 to rotate, and the abutment rod 313 on the limit frame 37 contacts the inclined block 315 on the blocking frame 314. Under the restriction of the inclined block 315, the abutment rod 313 makes the limit block 38 slide on the limit frame 37 when the limit frame 37 rotates. At this time, the limit block 38 drives the push block 310 and the protrusion 35 on the extended baffle 34 Separation, at this time, the rotating disk 32 will rotate in the opposite direction and reset under the drive of the torsion spring 33, thereby driving the internal clamping device 4 to release the positioning of the inner hole of the valve seat, and when the rotating disk 32 is reset, the protrusion 35 on the extended baffle 34 will contact the second stop block 312, and then when the rotating frame 36 continues to rotate, the rotating disk 32 can continue to rotate, controlling the internal clamping device 4 to clamp the valve seat in the opening 12, and through this arrangement, under the drive of the drive device 2, the internal clamp control component 3 can drive the internal clamping device 4 to clamp and release the inner hole of the valve seat.

[0040] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the inner clamping device 4 includes an adjusting disk 41 rotatably arranged on the clamping seat 11, the bottom of the adjusting disk 41 is fixedly connected to the rotating disk 32, and the surface of the clamping seat 11 is hingedly provided with three clamping arms 42 around the circumference of the adjusting disk 41, and the adjusting disk 41 is provided with an adjusting block 43 corresponding to the three clamping arms 42, the adjusting block 43 is rotatably matched with the adjusting disk 41, and the clamping arm 42 extends into the adjusting block 43;

[0041] The operator places the valve seat in the opening 12 in the clamping seat 11. When the rotating disk 32 rotates, it will drive the adjusting disk 41 to rotate. The adjusting disk 41 drives the three adjusting blocks 43 to move synchronously, so that the three adjusting blocks 43 can drive the three clamping arms 42 to expand outward in the inner hole of the valve seat, thereby clamping the inner hole of the valve seat. At this time, the outer wall of the valve seat can be processed by external grinding equipment, drilling equipment and other equipment.

[0042] In this embodiment, Figure 1 , Figure 2 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, the outer clamp control member 5 includes an outer sleeve 51 fixedly arranged on the inner wall of the processing table 1, a lifting rod 53 is slidably arranged in the outer sleeve 51, a fixed plate 54 is fixedly arranged on the top of the lifting rod 53, an elastic spring 55 is sleeved on the lifting rod 53, and the two ends of the elastic spring 55 are respectively connected to the top of the outer sleeve 51 and the bottom of the fixed plate 54, the driving rod 22 drives the cam 24 to rotate, the raised end of the cam 24 contacts the upper end surface of the fixed plate 54, a clamping frame 56 is fixedly arranged on the outer wall of the fixed plate 54, and a clamping plate 57 is connected to the outer wall of the rotating sleeve rod 31 at the telescopic end, and the clamping frame 56 and the clamping plate 57 are rotatably matched;

[0043] The outer clamp device 6 includes a moving frame 61 relatively arranged on the outer wall of the processing table 1, a return spring 62 is sleeved on the moving frame 61, and the two ends of the return spring 62 are respectively connected to the side wall of the processing table 1 and the top of the moving frame 61, and the moving frame 61 is provided with a pressing plate 63 extending toward the inside of the processing table 1, and a pulley 64 is provided on the pressing plate 63, and the pulley 64 contacts the bottom of the fixed plate 54, and the top of the moving frame 61 is extended toward the clamping seat 11. A fixing plate 65 is provided;

[0044] When the outer wall of the valve seat is clamped, the driving motor 21 drives the driving rod 22 to rotate, and the raised end of the cam 24 contacts the upper surface of the fixed plate 54. At this time, the raised end of the cam 24 squeezes the fixed plate 54, and the fixed plate 54 moves downward under the drive of the cam 24. The fixed plate 54 drives the lifting rod 53 to slide downward in the outer sleeve 51. When the fixed plate 54 slides downward, the clamping frame 56 provided on the fixed plate 54 drives the clamping plate 57 to make the rotating sleeve rod 31 move downward. The clamping plate 57 is connected to the telescopic end of the rotating sleeve rod 31, thereby driving the rotating sleeve rod 31 to move downward. At this time, the telescopic part of the rotating sleeve rod 31 and the part clamped with the rotating rod 25 will be separated. At this time, the rotating sleeve rod 31 and The rotating rod 25 is not in a clamping state, so when the driving rod 22 rotates, the driving rod 22 cannot drive the first bevel gear 23 to rotate the second bevel gear 26, so that the rotating disk 32 cannot drive the internal clamping device 4 to move. During the downward movement of the fixed disk 54, the fixed disk 54 will contact the two pulleys 64, so that the pressure plate 63 drives the moving frame 61 to move downward, and the moving frame 61 will drive the fixed plate 65 to press down and fix the valve seat on the clamping seat 11, thereby clamping the outer wall of the valve seat. Driven by the driving motor 21, the external clamp control component 5 can drive the external clamp device 6 to clamp the outer wall of the valve seat, so that external grinding equipment and drilling equipment and other equipment can process the inner wall of the valve seat.

[0045] In this embodiment, Figure 1 , Figure 2 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, an L-shaped slide groove 52 is provided on the outer wall of the outer sleeve 51, and an inner sleeve 7 is also provided in the outer sleeve 51. A spiral groove 71 with a double spiral arrangement is provided on the inner wall of the inner sleeve 7. A positioning rod 72 engaged with the spiral groove 71 is provided on the lifting rod 53, and a clamping rod 73 slidably matched with the slide groove 52 is provided on the outer wall of the inner sleeve 7. A transmission gear plate 74 is rotatably provided on the inner bottom of the processing table 1, a rotating gear plate 75 is fixedly provided on the outer wall of the rotating disk 32, and a transmission rod 76 is rotatably provided on the processing table 1. Both ends of the transmission rod 76 are fixedly connected with transmission gears 77. The two transmission gears 77 are respectively meshed with the transmission gear plate 74 and the rotating gear plate 75, and the transmission gear plate 74 is engaged with the outer wall of the inner sleeve 7.

[0046] When the outer clamp device 6 clamps the outer wall of the valve seat, as the driving motor 21 continues to drive the driving rod 22 to rotate, the raised end of the cam 24 will continue to squeeze the fixed plate 54 downward, and when the fixed plate 54 drives the lifting rod 53 to continue to press down to the bottom of the outer sleeve 51, the inner cylinder 7 will extend into the transmission gear plate 74 driven by the two positioning rods 72 on the lifting rod 53, and the outer wall of the inner cylinder 7 is engaged with the transmission gear plate 74. At this time, after the bottom of the inner cylinder 7 is blocked and cannot continue to move downward, the lifting rod 53 moves downward to drive the inner cylinder 7 to rotate through the spiral groove 71 on the inner cylinder 7, and at the same time, the clamping rod 73 on the inner cylinder 7 is located in the slide groove 52 on the outer sleeve 51. The rotation of the inner cylinder 7 at this time will drive the transmission gear plate 74 to rotate, and the transmission gear plate 74 contacts the transmission gear 77 to cause the transmission rod 76 to rotate. The transmission gear 77 at the end of the transmission rod 76 away from the transmission toothed disc 74 drives the rotating toothed disc 75 to rotate, and the rotating toothed disc 75 drives the rotating disc 32 to rotate. Because the rotating sleeve rod 31 and the rotating rod 25 are not in a clamping state at this time, it will not affect the use of the driving motor 21. At this time, the fixed disc 54 is squeezed by the cam 24 and is in a downward state. The outer clamp device 6 clamps the outer wall of the valve seat, and the rotation of the rotating disc 32 will cause the inner clamping device 4 to clamp the inner hole of the valve seat, thereby synchronously realizing the clamping operations of the outer wall and the inner hole of the valve seat, so that the valve seat can be more stable and adapt to different operating environments. Through this arrangement, under the drive of the driving motor 21, the driving rod 22 can switch the clamping positioning of different parts of the valve seat when rotating at different angles, so that the valve seat can adapt to different processing equipment during the processing.

[0047] The use method and advantages of the present invention: The use method of the valve seat processing clamping tooling, the working process is as follows:

[0048] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 As shown:

[0049] S1: When the valve seat to be processed is placed in the opening 12 in the clamping seat 11, the driving rod 22 is rotated under the drive of the driving motor 21, and the driving rod 22 rotates to rotate the first bevel gear 23, and the first bevel gear 23 rotates to drive the second bevel gear 26 to rotate, and the second bevel gear 26 drives the rotating rod 25 to rotate. When the rotating rod 25 rotates, the rotating sleeve rod 31 is clamped on the rotating rod 25, and then the rotating sleeve rod 31 can be driven by the rotating rod 25 to rotate synchronously, and the rotating sleeve rod 31 drives the rotating frame 36 to rotate about the center of the rotating sleeve rod 31. At this time, the pushing block 310 in the limiting frame 37 on the rotating frame 36 will contact the extended baffle 34 on the rotating disk 32. After the pushing block 310 contacts the protrusion 35, the extended baffle 34 can drive the rotating disk 32 to rotate under the drive of the pushing block 310, and the rotating disk 32 can drive the internal clamping device 4 to internally clamp the valve seat in the opening 12;

[0050] S2: When the second bevel gear 26 continues to rotate, the rotating sleeve rod 31 drives the limit frame 37 to rotate continuously to the side of the blocking frame 314, and the extended baffle 34 on the rotating disk 32 contacts the first block 311 and stops driving the rotating disk 32 to rotate, and the abutment rod 313 on the limit frame 37 contacts the inclined block 315 on the blocking frame 314. Under the restriction of the inclined block 315, the abutment rod 313 makes the limit block 38 slide on the limit frame 37 when the limit frame 37 rotates. The time limit block 38 drives the push block 310 to separate from the protrusion 35 on the extension baffle 34. At this time, the rotating disk 32 will rotate in the opposite direction and reset under the drive of the torsion spring 33, thereby driving the internal clamping device 4 to release the positioning of the inner hole of the valve seat. When the rotating disk 32 is reset, the protrusion 35 on the extension baffle 34 will contact the second stopper 312, and then when the rotating frame 36 continues to rotate, the rotating disk 32 can continue to rotate, and the internal clamping device 4 is controlled to clamp the valve seat in the opening 12;

[0051] S3: The operator places the valve seat in the opening 12 in the clamping seat 11. When the rotating disk 32 rotates, the adjusting disk 41 is driven to rotate. The adjusting disk 41 drives the three adjusting blocks 43 to move synchronously, so that the three adjusting blocks 43 can drive the three clamping arms 42 to expand outward in the inner hole of the valve seat, thereby clamping the inner hole of the valve seat;

[0052] S4: When the outer wall of the valve seat is clamped, the driving motor 21 drives the driving rod 22 to rotate, and the raised end of the cam 24 contacts the upper surface of the fixed plate 54. At this time, the raised end of the cam 24 squeezes the fixed plate 54, and the fixed plate 54 moves downward under the drive of the cam 24. The fixed plate 54 drives the lifting rod 53 to slide downward in the outer sleeve 51. When the fixed plate 54 slides downward, the clamping frame 56 provided on the fixed plate 54 drives the clamping plate 57 to move the rotating sleeve rod 31 downward. The clamping plate 57 is connected to the telescopic end of the rotating sleeve rod 31, thereby driving the rotating sleeve rod 31. 1 moves downward, at this time, the part of the rotating sleeve rod 31 that is engaged with the rotating rod 25 will be separated, and the rotating sleeve rod 31 and the rotating rod 25 are not in an engaged state, so that when the driving rod 22 rotates, the driving rod 22 cannot drive the first bevel gear 23 to rotate the second bevel gear 26, so that the rotating disk 32 cannot drive the inner clamping device 4 to move, and during the downward movement of the fixed disk 54, the fixed disk 54 will contact the two pulleys 64, so that the pressing plate 63 drives the moving frame 61 to move downward, and the moving frame 61 drives the fixing plate 65 to press down and fix the valve seat on the clamping seat 11;

[0053] S5: After the outer clamp device 6 clamps the outer wall of the valve seat, as the driving motor 21 continues to drive the driving rod 22 to rotate, the raised end of the cam 24 will continue to squeeze the fixed plate 54 downward, and when the fixed plate 54 drives the lifting rod 53 to continue to press down to the bottom of the outer sleeve 51, the inner cylinder 7 will extend into the transmission gear plate 74 driven by the two positioning rods 72 on the lifting rod 53, and the outer wall of the inner cylinder 7 is engaged with the transmission gear plate 74. At this time, the bottom of the inner cylinder 7 is blocked and cannot continue to move downward. When the lifting rod 53 moves downward to drive the inner cylinder 7 to move downward, the inner cylinder 7 will rotate through the spiral groove 71 on the inner cylinder 7, and at the same time, the clamping rod 73 on the inner cylinder 7 is located in the slide groove 5 on the outer sleeve 51. 2, the rotation of the inner cylinder 7 at this time will drive the transmission toothed disc 74 to rotate, and the transmission toothed disc 74 will contact the transmission gear 77 to rotate the transmission rod 76, and the transmission gear 77 at one end of the transmission rod 76 away from the transmission toothed disc 74 will drive the rotating toothed disc 75 to rotate, and the rotating toothed disc 75 will drive the rotating disc 32 to rotate. Because the rotating sleeve rod 31 and the rotating rod 25 are not in a clamping state at this time, it will not affect the use of the driving motor 21. At this time, the fixed disc 54 is squeezed by the cam 24 and is in a downward state. The outer clamp device 6 clamps the outer wall of the valve seat, and the rotation of the rotating disc 32 will cause the inner clamping device 4 to clamp the inner hole of the valve seat, thereby synchronously realizing the clamping of the outer wall and the inner hole of the valve seat.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A valve seat processing and clamping tool, characterized in that: The invention comprises a processing table (1), wherein a clamping seat (11) is fixedly arranged on the top of the processing table (1), an opening (12) is arranged in the clamping seat (11), an inner clamping device (4) for clamping a valve seat is arranged in the opening (12), an outer clamping device (6) for clamping the valve seat is arranged opposite to the top of the clamping seat (11), a driving device (2) is arranged on the outer wall of the processing table (1), an inner clamping control component (3) for transmission cooperation with the driving device (2) is arranged on the top of the processing table (1), the inner clamping control component (3) is in contact and cooperation with the inner clamping device (4), an outer clamping control component (5) is arranged inside the processing table (1) and is located below the inner clamping control component (3), and the outer clamping control component (5) is in contact and cooperation with the driving device (2), and the outer clamping control component (5) is in abutment with the outer clamping device (6); The driving device (2) comprises a driving motor (21) fixedly arranged on the outer wall of the processing table (1); the output end of the driving motor (21) is drivingly connected to a driving rod (22); the driving rod (22) is rotatably matched with the processing table (1); a first bevel gear (23) is fixedly connected to the driving rod (22); a cam (24) is also fixedly arranged on the driving rod (22); a rotating rod (25) is rotatably arranged on the inner wall of the processing table (1); a second bevel gear (26) is fixedly connected to the rotating rod (25); the first bevel gear (23) and the second bevel gear (26) are rotatably matched; the inner clamp control component (3) is snap-fitted with the rotating rod (25); The inner clamp control member (3) comprises a rotating sleeve rod (31) rotatably arranged on the top of the processing table (1), the rotating sleeve rod (31) is telescopically arranged at one end facing the rotating rod (25), and the rotating sleeve rod (31) and the rotating rod (25) are engaged with each other in a snap-fitting manner, a rotating disk (32) is rotatably arranged at the bottom of the opening (12) of the clamping seat (11), the rotating disk (32) is in transmission cooperation with the inner clamping device (4), a torsion spring (33) is connected between the rotating disk (32) and the clamping seat (11), an extension baffle (34) is fixedly connected to the side of the rotating disk (32) facing the rotating sleeve rod (31), and a protrusion (35) is arranged on the extension baffle (34), the other end of the rotating sleeve rod (31) away from the rotating rod (25) is fixedly connected to a rotating frame (36), and a limiting frame (37) is arranged on the rotating frame (36), A limit block (38) is slidably arranged inside the limit frame (37), a pressure spring (39) is arranged between the limit block (38) and the limit frame (37), a push block (310) is fixedly arranged on the outer wall of the limit block (38), the push block (310) contacts the protrusion (35) on the extended baffle (34), a first stop block (311) and a second stop block (312) are arranged on the inner top surface of the clamping seat (11) around the circumference of the rotating frame (36), an abutment rod (313) is fixedly arranged on the outer wall of the limit block (38) below the push block (310), a blocking frame (314) is extended from the top of the processing table (1) toward the limit frame (37), a wedge-shaped inclined block (315) is arranged on the blocking frame (314), and the abutment rod (313) abuts against the inclined block (315); The inner clamping device (4) comprises an adjusting disk (41) rotatably arranged on the clamping seat (11), the bottom of the adjusting disk (41) is fixedly connected to the rotating disk (32), the surface of the clamping seat (11) is hingedly provided with three clamping arms (42) around the circumference of the adjusting disk (41), the adjusting disk (41) is provided with an adjusting block (43) corresponding to the three clamping arms (42), the adjusting block (43) is rotatably matched with the adjusting disk (41), and the clamping arm (42) extends into the adjusting block (43); The outer clamp control component (5) includes an outer sleeve (51) fixedly arranged on the inner wall of the processing table (1), a lifting rod (53) is slidably arranged in the outer sleeve (51), a fixed plate (54) is fixedly arranged on the top of the lifting rod (53), an elastic spring (55) is sleeved on the lifting rod (53), the two ends of the elastic spring (55) are respectively connected to the top of the outer sleeve (51) and the bottom of the fixed plate (54), the driving rod (22) drives the cam (24) to rotate, the raised end of the cam (24) contacts the upper end surface of the fixed plate (54), a clamping frame (56) is fixedly arranged on the outer wall of the fixed plate (54), and a clamping plate (57) is connected to the outer wall of the rotating sleeve (31) at the telescopic end, and the clamping frame (56) and the clamping plate (57) are rotatably matched; The external clamp device (6) comprises a movable frame (61) arranged relative to the outer wall of the processing table (1), a return spring (62) is sleeved on the movable frame (61), two ends of the return spring (62) are respectively connected to the side wall of the processing table (1) and the top of the movable frame (61), the movable frame (61) is provided with a pressure plate (63) extending toward the processing table (1), the pressure plate (63) is provided with a pulley (64), the pulley (64) is in contact with the bottom of the fixed plate (54), and the top of the movable frame (61) is provided with a fixed plate (65) extending toward the clamping seat (11).

2. A valve seat processing and clamping tool according to claim 1, characterized in that: An L-shaped slide groove (52) is provided on the outer wall of the outer sleeve (51), an inner sleeve (7) is further provided inside the outer sleeve (51), a double-helix spiral groove (71) is provided on the inner wall of the inner sleeve (7), a positioning rod (72) engaged with the spiral groove (71) is provided on the lifting rod (53), a clamping rod (73) slidably matched with the slide groove (52) is provided on the outer wall of the inner sleeve (7), a transmission toothed disc (74) is rotatably provided on the inner bottom of the processing table (1), a rotating toothed disc (75) is fixedly provided on the outer wall of the rotating disc (32), a transmission rod (76) is rotatably provided on the processing table (1), both ends of the transmission rod (76) are fixedly connected with transmission gears (77), the two transmission gears (77) are respectively meshed with the transmission toothed disc (74) and the rotating toothed disc (75), and the transmission toothed disc (74) is engaged with the outer wall of the inner sleeve (7).

3. A method for using the valve seat processing and clamping tool according to claim 2, comprising the following steps: S1: When the valve seat to be processed is placed in the opening (12) in the clamping seat (11), the driving rod (22) is rotated under the drive of the driving motor (21), and the driving rod (22) rotates to rotate the first bevel gear (23), and the rotation of the first bevel gear (23) drives the second bevel gear (26) to rotate, and the second bevel gear (26) drives the rotating rod (25) to rotate. When the rotating rod (25) rotates, the rotating sleeve rod (31) is clamped on the rotating rod (25), and the rotating sleeve rod (31) can be driven by the rotating rod (25) to rotate synchronously , and the rotating sleeve rod (31) drives the rotating frame (36) to rotate about the center of the rotating sleeve rod (31), and at this time, the pushing block (310) on the rotating frame (36) in the limiting frame (37) contacts the extending baffle (34) on the rotating disk (32), and after the pushing block (310) contacts the protrusion (35), the extending baffle (34) can drive the rotating disk (32) to rotate under the drive of the pushing block (310), and the rotating disk (32) can drive the internal clamping device (4) to internally clamp the valve seat in the opening (12); S2: When the second bevel gear (26) continues to rotate, the rotating sleeve rod (31) drives the limit frame (37) to rotate continuously to the side of the blocking frame (314), the extended baffle plate (34) on the rotating disk (32) contacts the first block (311) and stops driving the rotating disk (32) to rotate, and the abutment rod (313) on the limit frame (37) contacts the inclined block (315) on the blocking frame (314). Under the restriction of the inclined block (315), when the limit frame (37) rotates, the abutment rod (313) causes the limit block (38) to slide on the limit frame (37). At this time, the limit block (38) drives the push block (310) to separate from the protrusion (35) on the extension baffle (34), and the rotating disk (32) is driven by the torsion spring (33) to rotate in the opposite direction and reset, thereby driving the internal clamping device (4) to release the positioning of the inner hole of the valve seat. When the rotating disk (32) is reset, the protrusion (35) on the extension baffle (34) will contact the second stopper (312), and then when the rotating frame (36) continues to rotate, the rotating disk (32) can continue to rotate, and the internal clamping device (4) can be controlled to clamp the valve seat in the opening (12); S3: The operator places the valve seat in the opening (12) in the clamping seat (11). When the rotating disk (32) rotates, the adjusting disk (41) is driven to rotate. The adjusting disk (41) drives the three adjusting blocks (43) to move synchronously, so that the three adjusting blocks (43) can drive the three clamping arms (42) to expand outward in the inner hole of the valve seat, thereby clamping the inner hole of the valve seat. S4: When the outer wall of the valve seat is clamped, the driving motor (21) drives the driving rod (22) to rotate. When the driving rod (22) rotates, the cam (24) rotates, and the raised end of the cam (24) contacts the upper surface of the fixed plate (54). At this time, the raised end of the cam (24) squeezes the fixed plate (54), and the fixed plate (54) moves downward under the drive of the cam (24). The fixed plate (54) drives the lifting rod (53) to slide downward in the outer sleeve (51). When the fixed plate (54) slides downward, the clamping frame (56) provided on the fixed plate (54) drives the clamping plate (57) to move the rotating sleeve rod (31) downward. The clamping plate (57) is connected to the telescopic end of the rotating sleeve rod (31), thereby The rotating sleeve rod (31) can be driven to move downward, and the portion of the rotating sleeve rod (31) that is engaged with the rotating rod (25) will be separated. At this time, the rotating sleeve rod (31) and the rotating rod (25) are not in an engaged state, so that when the driving rod (22) is rotated, the driving rod (22) cannot drive the first bevel gear (23) to rotate the second bevel gear (26), thereby making it impossible for the rotating disk (32) to drive the inner clamping device (4) to move. In the process of the fixed disk (54) moving downward, the fixed disk (54) will contact the two pulleys (64), so that the pressing plate (63) drives the moving frame (61) to move downward, and the moving frame (61) drives the fixed plate (65) to press down and fix the valve seat on the clamping seat (11); S5: After the outer clamp device (6) clamps the outer wall of the valve seat, as the driving motor (21) continues to drive the driving rod (22) to rotate, the raised end of the cam (24) will continue to squeeze the fixed plate (54) downward, and when the fixed plate (54) drives the lifting rod (53) to continue to press down to the bottom of the outer sleeve (51), the inner cylinder (7) will extend into the transmission gear plate (74) driven by the two positioning rods (72) on the lifting rod (53), and the outer wall of the inner cylinder (7) and the transmission gear plate (74) will be engaged. At this time, the bottom of the inner cylinder (7) is blocked and cannot continue to move downward. When the lifting rod (53) moves downward to drive the inner cylinder (7) downward, the spiral groove (71) on the inner cylinder (7) will cause the inner cylinder (7) to rotate, and at the same time, the clamping rod (73) on the inner cylinder (7) is located on the outer sleeve (51). In the slide groove (52), the rotation of the inner cylinder (7) at this time will drive the transmission toothed disc (74) to rotate. After the transmission toothed disc (74) contacts the transmission gear (77), the transmission rod (76) rotates. The transmission gear (77) at one end of the transmission rod (76) away from the transmission toothed disc (74) drives the rotating toothed disc (75) to rotate. The rotating toothed disc (75) drives the rotating disc (32) to rotate. Because the rotating sleeve rod (31) and the rotating rod (25) are not in a clamping state at this time, the use of the driving motor (21) is not affected. At this time, the fixed disc (54) is squeezed by the cam (24) and is in a downward moving state. The outer clamp device (6) clamps the outer wall of the valve seat, and the rotation of the rotating disc (32) causes the inner clamping device (4) to clamp the inner hole of the valve seat, thereby synchronously achieving the clamping operation of the outer wall and the inner hole of the valve seat.

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