Valve body clamping tool

Abstract

The invention relates to the technical field of mechanical positioning clamps. The valve body clamping tool comprises a base, a first supporting seat and a second supporting seat are arranged on the base in a sliding mode, a driving assembly is arranged on the base, a locking assembly is arranged on the first supporting seat, a first mounting seat is rotationally arranged on the first supporting seat, and a second mounting seat is arranged on the second supporting seat. A first mounting seat is rotatably arranged on the first supporting seat, a second mounting seat is rotatably arranged on the second supporting seat, first clamping assemblies are arranged on the first mounting seat and the second mounting seat, a second clamping assembly is further arranged on the second mounting seat, a rotating assembly is arranged on the first supporting seat, and an expansion assembly is arranged on the second clamping assembly. A synchronization assembly is arranged on the second mounting base, and a linkage assembly is arranged on the second supporting base. The valve body clamping device has the beneficial effects that by arranging the first clamping assembly, the second clamping assembly and the synchronizing assembly, valve bodies of different shapes and sizes can be clamped and fixed.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical positioning jigs, and particularly to a clamping tooling for valve bodies. Background Art

[0002] After a valve is cast and formed, it needs to be machined by milling. To ensure the machining accuracy, it is necessary to position the valve body well to ensure the machining quality. At present, during the surface finishing process of a cast valve body, the valve body to be machined needs to be clamped and fixed to improve the machining efficiency. However, the existing tooling jigs are not convenient for adjusting the jig size, greatly reducing the applicable range of the jigs. Therefore, when valve bodies of different sizes need to be machined, new jigs need to be developed, resulting in a high machining cost. Summary of the Invention

[0003] In order to overcome the disadvantages of the prior art, the present application provides a clamping tooling for valve bodies.

[0004] A clamping tooling for valve bodies provided by the present application adopts the following technical solutions: A clamping tooling for valve bodies includes a base. A first support seat and a second support seat are slidably arranged on the base. A driving component is arranged on the base for driving the first support seat and the second support seat to move towards each other. A locking component is arranged on the first support seat. A first mounting seat is rotatably arranged on the first support seat. A second mounting seat is rotatably arranged on the second support seat. First clamping components are arranged on both the first mounting seat and the second mounting seat. A second clamping component is further arranged on the second mounting seat. A rotating component is arranged on the first support seat for driving the first mounting seat to rotate. An expanding component is arranged on the second clamping component for increasing the contact area between itself and the valve body. A synchronizing component is arranged on the second mounting seat for synchronously clamping the two first clamping components. A linkage component is arranged on the second support seat for linking the driving component with the second clamping component and the synchronizing component.

[0005] By adopting the above technical solution, during use, according to the size of the current valve body, the contact area between the valve body and the expansion component is increased by adjusting the expansion component so as to adapt to valve bodies of different sizes. Then, the valve body is placed on the expansion component, and then the driving component is used to drive the first support seat and the second support seat to move towards each other, thereby driving the first mounting seat and the second mounting seat to move synchronously. Under the action of the linkage component, the first clamping component and the second clamping component will be driven to move synchronously. The first clamping component and the second clamping component will clamp and fix the valve body from different positions, so that the valve body can be clamped better, and it is convenient to clamp and fix valve bodies of different sizes. The first clamping component and the second clamping component cooperate to clamp the valve body, thereby improving the clamping and fixing effect of the valve body and enhancing the stability of the valve body during the processing process.

[0006] Optionally, the first clamping component includes a clamping seat, a first clamping block, and a second clamping block. The clamping seat is fixedly arranged on the first mounting seat. A worm is rotatably arranged on the clamping seat. One end of the first clamping block is fixedly provided with a first worm gear, and the first worm gear is rotatably arranged on one side of the clamping seat. One end of the second clamping block is fixedly provided with a second worm gear, and the second worm gear is rotatably arranged on the other side of the clamping seat. Both the first worm gear and the second worm gear are engaged with the worm. A plurality of auxiliary abutting blocks are uniformly arranged along the length direction of the first clamping block. The auxiliary abutting blocks are slidably connected to the first clamping block, and an auxiliary spring is arranged on the auxiliary abutting blocks. The other end of the auxiliary spring is connected to the first clamping block.

[0007] By adopting the above technical solution, during use, the worm is driven to rotate, so that the first clamping block and the second clamping block 43 move towards each other, thereby being able to clamp and fix the valve body.

[0008] Optionally, the second clamping component includes a first clamping rod and a second clamping rod. The first clamping rod is slidably arranged at one end of the second mounting seat. The second clamping rod is slidably arranged at the other end of the second mounting seat. A first clamping cylinder is slidably arranged on the first clamping rod. The end of the first clamping cylinder away from the first clamping rod is slidably arranged on the first mounting seat. A second clamping cylinder is slidably arranged on the second clamping rod. The end of the second clamping cylinder away from the second clamping rod is slidably arranged on the first mounting seat. The second mounting seat is rotatably arranged on the second support seat through a rotating shaft. An installation ring is slidably arranged on the rotating shaft. A first connecting rod and a second connecting rod are hinged on the installation ring. The other end of the first connecting rod is hinged to the first clamping rod, and the second connecting rod is hinged to the second clamping rod.

[0009] By adopting the above technical solution, during use, the installation ring is driven to slide along the length direction of the rotating shaft. During the movement of the installation ring, the first clamping rod and the second clamping rod will be pushed by the first connecting rod and the second connecting rod to move towards each other. During the movement of the first clamping rod and the second clamping rod, the first clamping cylinder and the second clamping cylinder will be driven to move synchronously, so as to clamp and fix the valve body.

[0010] Optionally, the synchronization component includes two first bevel gears and two first rotating shafts. The two first bevel gears correspond to the two worm gears one by one. The first bevel gears are coaxially arranged on the worm gears. The two first rotating shafts correspond to the two clamping seats one by one. The first rotating shafts are rotatably arranged on the clamping seats along the vertical direction. One end of the first rotating shaft is coaxially provided with a second bevel gear. The second bevel gear meshes with the first bevel gear. A first shaft cylinder is slidably sleeved on the first rotating shaft. A first limiting block is arranged on the first rotating shaft. A first limiting groove is formed in the first shaft cylinder along its own length direction. The first limiting block is slidably arranged in the first limiting groove. A third bevel gear is coaxially arranged on the first shaft cylinder. A second rotating shaft is rotatably arranged on the first clamping rod. A second shaft cylinder is rotatably arranged on the first clamping cylinder. The second shaft cylinder is slidably arranged on the second rotating shaft. A second limiting block is arranged on the second rotating shaft. A second limiting groove is formed in the second shaft cylinder along its own length direction. The second limiting block is slidably arranged in the second limiting groove. Fourth bevel gears are coaxially arranged on the second rotating shaft and the second shaft cylinder. The fourth bevel gear meshes with the third bevel gear.

[0011] By adopting the above technical solution, when one of the worm gears is driven to rotate, both of the first clamping components move synchronously, so as to facilitate the clamping of the valve body.

[0012] Optionally, the driving component includes a first rack and a second rack. The first rack is fixedly arranged at the bottom of the first support seat. The second rack is fixedly arranged at the bottom of the second support seat. The first rack and the second rack are both slidably arranged in the driving groove. A driving gear is rotatably arranged in the driving groove. The first rack and the second rack are respectively meshed with both sides of the driving gear.

[0013] By adopting the above technical solution, the staff drives the driving gear to rotate. During the rotation of the driving gear, the first rack and the second rack will be driven to move in opposite directions, so as to drive the first support seat and the second support seat to move towards each other, so as to clamp and fix valve bodies of different sizes.

[0014] Optionally, the locking assembly includes a locking rod, which is slidably arranged on the first support seat, and a first return spring is arranged on the first support seat, and the other end of the first return spring is connected to the locking rod, the first mounting seat is rotatably arranged on the first supporting seat through the mounting shaft, a rotating ring is rotatably arranged on the first supporting seat, the rotating ring is coaxially arranged with the mounting shaft, a pushing ring is coaxially arranged on the mounting shaft, the pushing ring is slidably connected to the rotating ring, a plurality of second return springs are evenly arranged on the pushing ring along its circumference, the other end of the second return spring is connected to the rotating ring, a plurality of telescopic rods are evenly arranged on the pushing ring along its circumference, the other end of the telescopic rod is fixedly connected to the rotating ring, a driving shaft is rotatably arranged on the base, a driving gear is coaxially arranged on the driving shaft, a driving handwheel is coaxially arranged on one end of the driving shaft, and the base The top of described sliding panel also is provided with an adjusting device, and the bottom of described sliding panel also is provided with an adjusting screw rod, and the adjusting screw rod is meshed with the driving gear.

[0015] By adopting the above technical solution, when the driving assembly drives the first support seat and the second support seat to move towards each other, it is convenient to clamp the valve body. When the first support seat moves to the specified position, the insert rod will be inserted into the positioning hole corresponding to the current position, thereby limiting the position of the first support seat and improving the stability of the valve body during operation.

[0016] Optionally, the expansion component includes a support plate, which is fixed on the first clamping cylinder, and a plurality of sliding grooves are evenly opened on the support plate along its circumference, a slider is slidably arranged in the sliding groove, an arc block is fixedly arranged at one end of the slider, a toggle rod is arranged on the slider, an expansion gear is rotatably arranged on the support plate, a plurality of arc grooves are coaxially opened on the expansion gear, the toggle rod is slidably arranged in the arc groove, a driving gear is rotatably arranged on the support plate, the driving gear is meshed with the expansion gear, and a driving motor is arranged on the support plate, and the driving motor is coaxially connected to the driving gear.

[0017] By adopting the above technical solution, when it is necessary to clamp and fix a valve body with a relatively large cross-section, the driving motor is started to drive the driving gear to rotate. During the rotation of the driving gear, the expansion gear is driven to rotate, thereby driving the slider to slide along the chute, so that the arc-shaped block moves away from the support plate, and thus the contact area with the valve body can be increased.

[0018] Optionally, an installation hole is formed in the arc-shaped block, a contact block is slidably arranged in the installation hole, a fifth return spring is arranged at the bottom of the contact block, and the other end of the fifth return spring is connected to the bottom wall of the installation hole.

[0019] By adopting the above technical solution, when the second clamping assembly is driven to clamp and fix the valve body, the two expansion assemblies will move towards each other, so that the contact block abuts against the surface of the valve body, improving the clamping stability of the valve body.

[0020] Optionally, the linkage assembly includes a gear ring. A rotating seat is coaxially arranged on the upper portion of the rotating shaft. The rotating seat is rotatably arranged on the second support seat. A fixing frame is fixedly arranged on the rotating seat. The gear ring is rotatably arranged on the fixing frame. An installation block is fixedly arranged at the bottom of the second support seat. The driving shaft slidably penetrates through the installation block. A first linkage bevel gear is rotatably arranged on the installation block. A limiting key block is coaxially fixedly arranged on the driving shaft along the length direction of the driving shaft. A limiting key groove is formed on the first linkage bevel gear. The limiting key block is slidably arranged in the limiting key groove. A linkage shaft is rotatably arranged on the installation block along the vertical direction. A second linkage bevel gear is coaxially arranged at the bottom of the linkage shaft. The second linkage bevel gear meshes with the first linkage bevel gear. A third linkage bevel gear is coaxially arranged at the top of the linkage shaft. A fourth linkage bevel gear is coaxially arranged on the gear ring. The fourth linkage bevel gear meshes with the third linkage bevel gear. One end of the worm away from the first worm gear extends outside the rotating seat. A first adjustment sleeve is coaxially slidably arranged on the worm. A first adjustment limiting block is coaxially fixedly arranged on the worm. A first adjustment sliding groove is formed on the first adjustment sleeve. The first adjustment limiting block is slidably arranged in the first adjustment sliding groove. A first adjustment rod slidably penetrates through the rotating seat. The outer wall of the first adjustment sleeve is rotatably arranged on the first adjustment rod. A first linkage gear is coaxially arranged on the first adjustment sleeve. The first linkage gear meshes with the gear ring. A first push-pull electromagnet is arranged at one end of the rotating seat away from the gear ring. The push rod of the first push-pull electromagnet is connected to the first adjustment rod. A first electrode piece is arranged on the auxiliary abutting block. A first electrode jack is arranged on the first clamping block. The first electrode piece and the first electrode jack are both electrically connected to the first push-pull electromagnet. A second driving lead screw is rotatably arranged on the rotating seat. One end of the second driving lead screw is threadedly connected to the installation ring, and a second adjustment sleeve is coaxially slidably arranged at the other end. A second adjustment limiting block is coaxially arranged on the second driving lead screw. A second adjustment sliding groove is formed on the second adjustment sleeve. The second adjustment limiting block is slidably arranged in the second adjustment sliding groove. A second adjustment rod slidably penetrates through the rotating seat. The outer wall of the second adjustment sleeve is rotatably arranged on the second adjustment rod. A second linkage gear is coaxially arranged on the second adjustment sleeve. The second linkage gear meshes with the gear ring. A second push-pull electromagnet is arranged at one end of the rotating seat away from the gear ring. The push rod of the second push-pull electromagnet is connected to the second adjustment rod. A second electrode piece is arranged on the abutting block. A second electrode jack is arranged on the bottom wall of the installation hole. The second electrode piece and the second electrode jack are both electrically connected to the second push-pull electromagnet.

[0021] By adopting the above technical solution, the staff can drive the driving shaft to rotate, so that the first clamping assembly and the second clamping assembly can clamp the valve body.

[0022] Optionally, the rotating assembly includes a mounting bracket fixedly arranged on the first support base. A driving shaft is rotatably arranged on the mounting bracket. A rotating handwheel is coaxially arranged on the driving shaft. The other end of the driving shaft is coaxially connected to the mounting shaft. A limiting disc is coaxially arranged on the driving shaft. A plurality of positioning grooves are coaxially formed in the limiting disc. A limiting rod is rotatably arranged on the mounting bracket. One end of the limiting rod is inserted into the positioning groove, and the other end of the limiting rod is provided with a fourth return spring, and the other end of the fourth return spring is connected to the mounting bracket.

[0023] By adopting the above technical solution, when it is necessary to rotate the valve body to facilitate the processing of the valve body, the staff presses the limiting rod so that the limiting disc can rotate, and then rotates the rotating handwheel, so as to drive the driving shaft to rotate, drive the mounting shaft to rotate, and further rotate the first mounting seat and the valve body.

[0024] The present invention has the following advantages: 1. By arranging the first clamping assembly, the second clamping assembly and the synchronization assembly, the valve body with different shapes and sizes can be clamped and fixed; 2. By arranging the locking assembly and the linkage assembly, the first clamping assembly and the second clamping assembly can be simultaneously driven to clamp the valve body, reducing the labor intensity of the staff and the operation complexity; 3. By arranging the rotating assembly, it is convenient to rotate the clamped valve body to facilitate the production and processing of different positions of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the whole of the present invention; Figure 2 is a schematic installation structure diagram of the rotating assembly of the present invention; Figure 3 is a schematic installation structure diagram of the moving block of the present invention; Figure 4 is a schematic installation structure diagram of the synchronization assembly of the present invention; Figure 5 is a schematic installation structure diagram of the driving assembly of the present invention; Figure 6 is a schematic installation structure diagram of the locking assembly of the present invention; Figure 7 is a schematic installation structure diagram of the linkage assembly of the present invention; Figure 8 is a schematic installation structure diagram of the expansion assembly of the present invention; In the figure: 1. Base; 11. First support seat; 12. Second support seat; 13. First mounting seat; 14. Second mounting seat; 2. Driving assembly; 21. First rack; 22. Second rack; 23. Driving groove; 24. Driving gear; 3. Locking assembly; 31. Locking rod; 311. First return spring; 312. Adjusting seat; 313. Locking bolt; 314. Adjusting driving block; 315. Plug rod; 316. Positioning hole; 32. Mounting shaft; 33. Rotating ring; 34. Pushing ring; 341. Second return spring; 342. Telescopic rod; 35. Power shaft; 351. Driving gear; 352. Driving handwheel; 36. Moving groove; 361. Moving block; 37. First driving lead screw; 371. Driven gear; 38. Third return spring; 39. Adjusting chute; 391. Adjusting driven block; 4. First clamping assembly; 41. Clamping seat; 42. First clamping block; 421. First worm gear; 422. Auxiliary abutting block; 423. Auxiliary spring; 43. Second clamping block; 431. Second worm gear; 44. Worm; 5. Second clamping assembly; 51. First clamping rod; 511. First clamping cylinder; 52. Second clamping rod; 521. Second clamping cylinder; 53. Rotating shaft; 54. Mounting ring; 541. First connecting rod; 542. Second connecting rod; 6. Rotating assembly; 61. Mounting frame; 62. Driving shaft; 63. Rotating handwheel; 64. Limiting disc; 641. Positioning groove; 65. Limiting rod; 66. Fourth return spring; 7. Expansion assembly; 71. Support plate; 711. Expansion gear; 72. Chute; 73. Slide block; 731. Arc-shaped block; 732. Poking rod; 74. Arc-shaped groove; 75. Driving gear; 76. Driving motor; 77. Mounting hole; 771. Abutting block; 772. Fifth return spring; 8. Synchronization assembly; 81. First bevel gear; 82. First rotating shaft; 821. Second bevel gear; 822. First limiting block; 823. First shaft cylinder; 824. First limiting groove; 825. Third bevel gear; 83. Second rotating shaft; 831. Second limiting block; 84. Second shaft cylinder; 841. Second limiting groove; 85. Fourth bevel gear; 9. Linkage assembly; 91. Gear ring; 911. Fourth linkage bevel gear; 92. Rotating seat; 921. Fixed frame; 93. Mounting block; 931. First linkage bevel gear; 932. Limiting key block; 933. Limiting key groove; 934. Linkage shaft; 935. Second linkage bevel gear; 936. Third linkage bevel gear; 94. First adjusting sleeve; 941. First adjusting rod; 942. First linkage gear; 943. First push-pull electromagnet; 944. First electrode plate; 945. First electrode socket; 95. Second driving lead screw; 951. Second adjusting sleeve; 952. Second adjusting rod; 953. Second linkage gear; 954. Second push-pull electromagnet; 955. Second electrode plate; 956. Second electrode socket. Detailed implementation mode

[0026] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0027] As Figures 1 to 8 shown, a valve body clamping tooling includes a base 1. A first support seat 11 and a second support seat 12 are slidably mounted on the base 1. A driving assembly 2 for driving the first support seat 11 and the second support seat 12 to move towards each other is mounted on the base 1. A locking assembly 3 for fixing the position of itself is mounted on the first support seat 11. A first mounting seat 13 is rotatably mounted on the first support seat 11. A second mounting seat 14 is rotatably mounted on the second support seat 12. First clamping assemblies 4 are mounted on both the first mounting seat 13 and the second mounting seat 14. A second clamping assembly 5 is further mounted on the second mounting seat 14. A rotating assembly 6 for driving the first mounting seat 13 to rotate is mounted on the first support seat 11. An expanding assembly 7 for increasing the contact area between itself and the valve body is mounted on the second clamping assembly 5. A synchronizing assembly 8 for synchronously clamping the two first clamping assemblies 4 is mounted on the second mounting seat 14. A linkage assembly 9 for linking the driving assembly 2 with the second clamping assembly 5 and the synchronizing assembly 8 is mounted on the second support seat 12. During use, according to the size of the current valve body, the contact area between the valve body and the expanding assembly 7 is increased by adjusting the expanding assembly 7 so as to adapt to valve bodies of different sizes. Then, the valve body is placed on the expanding assembly 7. Then, the driving assembly 2 is used to drive the first support seat 11 and the second support seat 12 to move towards each other, thereby driving the first mounting seat 13 and the second mounting seat 14 to move synchronously. Under the action of the linkage assembly 9, the first clamping assemblies 4 and the second clamping assemblies 5 will be synchronously driven to move. The first clamping assemblies 4 and the second clamping assemblies 5 will clamp and fix the valve body from different positions, so that the valve body can be better clamped, and it is convenient to clamp and fix valve bodies of different sizes. The first clamping assemblies 4 and the second clamping assemblies 5 cooperate to clamp the valve body, thereby improving the clamping and fixing effect of the valve body and improving the stability of the valve body during the processing process.

[0028] As Figures 1 to 8As shown, the first clamping assembly 4 includes a clamping seat 41, a first clamping block 42, and a second clamping block 43. The clamping seat 41 is fixedly installed on the first mounting seat 13. A worm 44 is rotatably installed on the clamping seat 41. One end of the first clamping block 42 is fixedly installed with a first worm gear 421, and the first worm gear 421 is rotatably installed on one side of the clamping seat 41. One end of the second clamping block 43 is fixedly installed with a second worm gear 431, and the second worm gear 431 is rotatably installed on the other side of the clamping seat 41. Both the first worm gear 421 and the second worm gear 431 are engaged with the worm 44. A plurality of auxiliary abutting blocks 422 are evenly installed on the first clamping block 42 along its length direction. The auxiliary abutting blocks 422 are slidably connected to the first clamping block 42. An auxiliary spring 423 is installed on the auxiliary abutting block 422, and the other end of the auxiliary spring 423 is connected to the first clamping block 42. A first clamping assembly 4 with the same structure and size is installed on the second mounting seat 14. During use, the worm 44 is driven to rotate. During the rotation of the worm 44, the first worm gear 421 and the second worm gear 431 will be driven to rotate synchronously. During the rotation of the first worm gear 421, the first clamping block 42 will be driven to rotate synchronously. During the rotation of the second worm gear 431, the second clamping block 43 will be driven to rotate synchronously, so that the first clamping block 42 and the second clamping block 43 move towards each other, thereby being able to clamp and fix the valve body. Since the surface of the valve body may have irregular protrusions, when the first clamping block 42 moves towards the position close to the valve body, a plurality of auxiliary abutting blocks 422 will contact the surface of the valve body, and then the auxiliary spring 423 will be compressed, so that the auxiliary abutting blocks 422 can abut against the valve body more firmly, improving the stability of the valve body during processing.

[0029] As Figures 1 to 8As shown, the second clamping assembly 5 includes a first clamping rod 51 and a second clamping rod 52. The first clamping rod 51 is slidably mounted at one end of the second mounting seat 14, and the second clamping rod 52 is slidably disposed at the other end of the second mounting seat 14. The length directions of the first clamping rod 51 and the second clamping rod 52 are both consistent with the length direction of the base 1. Both the first clamping rod 51 and the second clamping rod 52 slide along the length direction of the second mounting seat 14. A first clamping cylinder 511 is slidably mounted on the first clamping rod 51 along its own length direction. One end of the first clamping cylinder 511 away from the first clamping rod 51 is slidably mounted on the first mounting seat 13. A second clamping cylinder 521 is slidably mounted on the second clamping rod 52 along its own length direction. One end of the second clamping cylinder 521 away from the second clamping rod 52 is slidably mounted on the first mounting seat 13. Both the first clamping cylinder 511 and the second clamping cylinder 521 slide along the length direction of the first mounting seat 13. The second mounting seat 14 is rotatably mounted on the second support seat 12 through a rotating shaft 53. An installation ring 54 is slidably mounted on the rotating shaft 53 along its own length direction. A first connecting rod 541 and a second connecting rod 542 are hingedly mounted on the installation ring 54. The other end of the first connecting rod 541 is hinged to the first clamping rod 51, and the second connecting rod 542 is hinged to the second clamping rod 52. During use, the installation ring 54 is driven to slide along the length direction of the rotating shaft 53. During the movement of the installation ring 54, the first clamping rod 51 and the second clamping rod 52 will be pushed to move towards each other through the first connecting rod 541 and the second connecting rod 542. During the movement of the first clamping rod 51 and the second clamping rod 52, the first clamping cylinder 511 and the second clamping cylinder 521 will be synchronously driven to move, so as to clamp and fix the valve body. Since the first clamping cylinder 511 is slidably mounted on the first clamping rod 51 and the second clamping cylinder 521 is slidably mounted on the second clamping rod 52, when the driving assembly 2 drives the first support seat 11 and the second support seat 12 to move towards each other, the first clamping cylinder 511 will move along the length direction of the first clamping rod 51, and the second clamping cylinder 521 will move along the length direction of the second clamping rod 52, so as to store the first clamping rod 51 and the second clamping rod 52, and thus does not affect the movement of the first support seat 11 and the second support seat 12. When it is necessary to release the clamping and fixing state of the valve body, the installation ring 54 is driven to slide in the reverse direction along the length direction of the rotating shaft 53.

[0030] As Figures 1 to 8As shown in the figure, the synchronization component 8 includes two first bevel gears 81 and two first rotating shafts 82. The two first bevel gears 81 correspond to the two worm gears 44 one by one. The first bevel gears 81 are coaxially installed at one end of the worm gears 44 away from the first worm wheels 421 and the second worm wheels 431. The two first rotating shafts 82 correspond to the two clamping seats 41 one by one. The first rotating shafts 82 are rotatably installed on the clamping seats 41 along the vertical direction. One end of the first rotating shaft 82 is coaxially installed with a second bevel gear 821. The second bevel gear 821 meshes with the first bevel gear 81. A first shaft cylinder 823 is slidably sleeved on the first rotating shaft 82 along the length direction of the first rotating shaft 82. A first limiting block 822 is installed on the first rotating shaft 82. A first limiting groove 824 is formed on the first shaft cylinder 823 along the length direction of the first shaft cylinder 823. The first limiting block 822 is slidably installed in the first limiting groove 824. One end of the first shaft cylinder 823 away from the first rotating shaft 82 is coaxially installed with a third bevel gear 825. A second rotating shaft 83 is rotatably installed on the first clamping rod 51. The length direction of the second rotating shaft 83 is the same as the length direction of the first clamping rod 51. A second shaft cylinder 84 is rotatably installed on the first clamping cylinder 511. The length direction of the second shaft cylinder 84 is the same as the length direction of the first clamping cylinder 511. The second shaft cylinder 84 is slidably sleeved on the second rotating shaft 83. A second limiting block 831 is installed on the second rotating shaft 83. A second limiting groove 841 is formed on the second shaft cylinder 84 along the length direction of the second shaft cylinder 84. The second limiting block 831 is slidably installed in the second limiting groove 841. Fourth bevel gears 85 are coaxially installed on both the second rotating shaft 83 and the second shaft cylinder 84. The fourth bevel gear 85 meshes with the third bevel gear 825. During use, when one of the worm gears 44 is driven to rotate, the first worm wheel 421 and the second worm wheel 431 will be driven to rotate during the rotation of the worm gear 44, so as to clamp the valve body. At the same time, the worm gear 44 will drive the first bevel gear 81 connected to itself to rotate. During the rotation of the first bevel gear 81, the second bevel gear 821 will be driven to rotate. During the rotation of the second bevel gear 821, the first rotating shaft 82 will be driven to rotate synchronously. During the rotation of the first rotating shaft 82, the first shaft cylinder 823 will be driven to rotate synchronously. During the rotation of the first shaft cylinder 823, the third bevel gear 825 will be driven to rotate. During the rotation of the third bevel gear 825, the fourth bevel gear 85 will be driven to rotate synchronously. During the rotation of the fourth bevel gear 85, the second rotating shaft 83 will be driven to rotate. During the rotation of the second rotating shaft 83, the second shaft cylinder 84 will be driven to rotate synchronously. During the rotation of the second shaft cylinder 84, the other worm gear 44 will be driven to rotate through another set of fourth bevel gears 85, third bevel gears 825, first shaft cylinders 823, second bevel gears 821 and first bevel gears 81, so as to facilitate driving the two first clamping components 4 to clamp and fix the valve body at the same time;A first shaft cylinder 823 is sleeved on the first rotating shaft 82 in a sliding manner, and a second shaft cylinder 84 is sleeved on the second rotating shaft 83. When the first clamping rod 51 and the second clamping rod 52 move towards each other, the first rotating shaft 82 can be slidably received into the first shaft cylinder 823. When the first support base 11 and the second support base 12 move towards each other, the second rotating shaft 83 can be slidably received into the second shaft cylinder 84, thus not affecting the normal operation of other components.

[0031] As Figures 1 to 8 shown, the driving assembly 2 includes a first rack 21 and a second rack 22. A driving groove 23 is formed in the base 1 along its length direction. The length directions of the first rack 21, the second rack 22, and the driving groove 23 are the same as the length direction of the base 1. The first rack 21 is fixedly installed at the bottom of the first support base 11, and the second rack 22 is fixedly installed at the bottom of the second support base 12. The first rack 21 and the second rack 22 are both slidably installed in the driving groove 23. A driving gear 75 is rotatably installed at the middle position in the driving groove 23. The first rack 21 and the second rack 22 are respectively engaged with both sides of the gear. When it is necessary to clamp the valve body, the worker drives the driving gear 75 to rotate. During the rotation of the driving gear 75, it will drive the first rack 21 and the second rack 22 to move in opposite directions, thereby driving the first support base 11 and the second support base 12 to move towards each other, so as to clamp and fix valve bodies of different sizes. When it is necessary to drive the two first support bases 11 and the second support base 12 to move away from each other, the worker only needs to drive the driving gear 75 to rotate in the reverse direction.

[0032] As Figures 1 to 8As shown, the locking assembly 3 includes a locking rod 31. The locking rod 31 is slidably mounted on the first support base 11 along the vertical direction. A first return spring 311 is fixedly mounted on the first support base 11, and the other end of the first return spring 311 is connected to the locking rod 31. The first mounting base 13 is rotatably mounted on the first support base 11 through a mounting shaft 32. A rotating ring 33 is rotatably mounted on the first support base 11. The rotating ring 33 and the mounting shaft 32 are coaxially arranged. A pushing ring 34 is coaxially and fixedly mounted on the mounting shaft 32. The outer wall of the pushing ring 34 is slidably connected to the inner wall of the rotating ring 33. A plurality of second return springs 341 are uniformly mounted on the pushing ring 34 along its circumferential direction, and the other ends of the second return springs 341 are fixedly connected to the rotating ring 33. A plurality of telescopic rods 342 are uniformly mounted on the pushing ring 34 along its circumferential direction, and the other ends of the telescopic rods 342 are fixedly connected to the rotating ring 33. A driving shaft 62 is rotatably mounted on the base 1. The driving shaft 62 is located in the driving groove 23. A driving gear 351 is coaxially and fixedly mounted on the driving shaft 62. One end of the driving shaft 62 is coaxially mounted with a driving handwheel 352. A moving groove 36 is formed at one end of the base 1. The length direction of the moving groove 36 is the same as the width direction of the base 1. A moving block 361 is slidably mounted in the moving groove 36. A first driving lead screw 37 is rotatably mounted on the moving block 361. The first driving lead screw 37 is located in the driving groove 23. A driven gear 371 is coaxially and fixedly mounted at one end of the first driving lead screw 37. The driven gear 371 meshes with the driving gear 351. A third return spring 38 is mounted in the moving groove 36, and the other end of the third return spring 38 is connected to the moving block 361. An adjusting chute 39 is formed at the bottom of the first support base 11. The length direction of the adjusting chute 39 is the same as the length direction of the moving chute 72. An adjusting driven block 391 is slidably mounted in the adjusting chute 39. The adjusting driven block 391 is threadedly connected to the first driving lead screw 37. An adjusting seat 312 is slidably sleeved at the bottom of the locking rod 31. A locking bolt 313 for fixing its own position is mounted on the adjusting seat 312. An adjusting driving block 314 is mounted at the bottom of the adjusting seat 312. Both the adjusting driven block 391 and the adjusting driving block 314 are trapezoidal. The inclined waist side of the adjusting driving block 314 is slidably connected to the inclined waist side of the adjusting driven block 391. A plug rod 315 is also fixedly mounted at the bottom of the adjusting seat 312. A plurality of positioning holes 316 are formed in the driving groove 23 along its length direction. The plug rod 315 is inserted into the positioning holes 316;When the staff needs to clamp and fix the valve body, rotate the driving handwheel 352. During the rotation of the driving handwheel 352, the driving shaft 62 will be driven to rotate synchronously. During the rotation of the driving shaft 62, the driving gear 351 will be driven to rotate synchronously. During the rotation of the driving gear 351, the driven gear 371 will be driven to rotate synchronously. During the rotation of the driven gear 371, the first driving lead screw 37 will be driven to rotate. Since the adjusting driven block 391 is threadedly connected to the first driving lead screw 37, during the rotation of the first driving lead screw 37, the adjusting driven block 391 and the first support seat 11 will be driven to move along the length direction of the driving groove 23. During the movement of the first support seat 11, the first rack 21 will be driven to move synchronously. During the movement of the first rack 21, the driving gear 75 will be driven to rotate. During the rotation of the driving gear 75, the second rack 22 will be driven to move. During the movement of the second rack 22, the second support seat 12 will be driven to move. During the movement of the first support seat 11 and the second support seat 12, the first clamping assembly 4 will be driven to move synchronously, so as to facilitate the clamping of the valve body. When the first clamping assembly 4 on the first mounting seat 13 presses and clamps the valve body, the first mounting seat 13 will slide along the length direction of the mounting shaft 32, thereby driving the pushing ring 34 to move towards the rotating ring 33. During the movement of the pushing ring 34, the second return spring 341 is compressed and the telescopic rod 342 contracts. At the same time, during the movement of the pushing ring 34, the end of the pushing ring 34 close to the rotating assembly 6 will press the top of the locking rod 31, so that the locking rod 31 slides along the vertical direction, and further the adjusting driving block 314 at the bottom of the locking rod 31 presses and pushes the adjusting driven block 391, so that the adjusting driven block 391 moves along the length direction of the adjusting chute 39, and at the same time the moving block 361 slides along the length direction of the moving groove 36, so that the driven gear 371 is separated from the driving gear 351. At the same time, the inserting rod 315 will be inserted into the positioning hole 316 corresponding to the current position, so as to fix the current position of the first support seat 11 and improve the stability of the valve body during processing; when it is necessary to release the restriction on the valve body, loosen the locking bolt 313, and then slide the locking bolt 313 and the adjusting seat 312 as a whole along the vertical direction, so that the inserting rod 315 moves away from the positioning hole 316. At the same time, the adjusting driving block 314 will also move along the vertical direction. Under the action of the third return spring 38, the moving block 361 will return to its original position, so that the driven gear 371 meshes with the driving gear 351. After the staff reversely rotates the handwheel, the first support seat 11 and the second support seat 12 can be driven to move away from each other, so as to release the limit on the valve body. When it is necessary to use the locking rod 31 again, restore the adjusting seat 312 to its original position, and then fix it with the locking bolt 313.;

[0033] As Figures 1 to 8As shown in the figure, the expansion component 7 includes a support plate 71. The support plate 71 is fixedly installed on the first clamping cylinder 511 through a support shaft. A plurality of sliding grooves 72 are evenly formed on the support plate 71 along its circumferential direction. A slider 73 is slidably installed in the sliding groove 72. One end of the slider 73 is fixedly installed with an arc-shaped block 731. A shifting rod 732 is fixedly installed on the slider 73. An expansion gear 711 is coaxially rotatably installed on the support plate 71. A plurality of arc-shaped grooves 74 are evenly formed on the expansion gear 711 coaxially. The plurality of shifting rods 732 correspond to the plurality of arc-shaped grooves 74 one by one. The shifting rod 732 is slidably installed in the arc-shaped groove 74. A driving gear 75 is rotatably installed on the support plate 71. The driving gear 75 meshes with the expansion gear 711. A driving motor 76 is also fixedly installed on the support plate 71. The driving motor 76 is coaxially connected to the driving gear 75. An identical expansion component 7 is installed on the second clamping cylinder 521 and corresponds to the expansion component 7 on the first clamping cylinder 511. When it is necessary to clamp and fix a valve body with a larger cross-section, the driving motor 76 is started. During the rotation of the driving motor 76, the driving gear 75 will be driven to rotate synchronously. During the rotation of the driving gear 75, the expansion gear 711 will be driven to rotate synchronously. During the rotation of the expansion gear 711, the shifting rod 732 will be driven to slide along the length direction of the arc-shaped groove 74, thereby driving the slider 73 to move along the length direction of the sliding groove 72. During the movement of the slider 73, the arc-shaped block 731 will be driven to move away from the support plate 71. The plurality of arc-shaped blocks 731 all move away from the support plate 71, so as to increase the contact area with the valve body, facilitating better clamping of the valve body.

[0034] As Figures 1 to 8 shown, an installation hole 77 is formed in the arc-shaped block 731 along the vertical direction. An abutting block 771 is slidably installed in the installation hole 77. A fifth return spring 772 is installed at the bottom of the abutting block 771. The other end of the fifth return spring 772 is connected to the bottom wall of the installation hole 77. During use, when the second clamping component 5 clamps and fixes the valve body, the first clamping rod 51 and the second clamping rod 52 will move towards each other, thereby driving the two expansion components 7 to move towards each other. During the movement of the first clamping rod 51 and the second clamping rod 52, the abutting block 771 will first come into contact with the valve body, and the fifth return spring 772 will be compressed. After being compressed, the fifth return spring 772 has a tendency to return to its original length, so that the abutting block 771 abuts against the surface of the valve body, improving the clamping stability of the valve body.

[0035] As Figures 1 to 8As shown, the linkage assembly 9 includes a gear ring 91. A rotating seat 92 is coaxially and fixedly installed on the upper part of the rotating shaft 53. The rotating seat 92 is rotatably installed on the second support seat 12. A fixing frame 921 is fixedly installed on the rotating seat 92. The gear ring 91 is rotatably installed on the fixing frame 921. An installation block 93 is fixedly installed at the bottom of the second support seat 12. The driving shaft 62 slidably penetrates through the installation block 93. A first linkage bevel gear 931 is rotatably installed on the installation block 93. A limiting key block 932 is coaxially and fixedly installed on the driving shaft 62 along its length direction. A limiting key groove 933 is formed on the first linkage bevel gear 931. The limiting key block 932 is slidably installed in the limiting key groove 933. A linkage shaft 934 is rotatably installed on the installation block 93 along the vertical direction. A second linkage bevel gear 935 is coaxially installed at the bottom of the linkage shaft 934. The second linkage bevel gear 935 meshes with the first linkage bevel gear 931. A third linkage bevel gear 936 is coaxially installed at the top of the linkage shaft 934. A fourth linkage bevel gear 911 is coaxially installed on the gear ring 91. The fourth linkage bevel gear 911 meshes with the third linkage bevel gear 936. One end of the worm 44 away from the first worm gear 421 extends outside the rotating seat 92. A first adjustment sleeve 94 is coaxially and slidably installed on the worm 44. A first adjustment limiting block is coaxially and fixedly installed on the worm 44. A first adjustment sliding groove 39 is coaxially formed on the first adjustment sleeve 94. The first adjustment limiting block is slidably installed in the first adjustment sliding groove 39. A first adjustment rod 941 slidably penetrates through the rotating seat 92. The outer wall of the first adjustment sleeve 94 is rotatably installed on the first adjustment rod 941. A first linkage gear 942 is coaxially installed on the first adjustment sleeve 94. The first linkage gear 942 meshes with the gear ring 91. A first push-pull electromagnet 943 is installed at one end of the rotating seat 92 away from the gear ring 91. The push rod of the first push-pull electromagnet 943 is connected to the first adjustment rod 941. A first electrode plate 944 is fixedly installed on the auxiliary abutting block 422. A first electrode jack 945 is installed on the first clamping block 42. Both the first electrode plate 944 and the first electrode jack 945 are electrically connected to the first push-pull electromagnet 943. A second driving lead screw 95 is rotatably installed on the rotating seat 92. One end of the second driving lead screw 95 is threadedly connected to the mounting ring 54, and the other end coaxially and slidably installs a second adjustment sleeve 951. A second adjustment limiting block is coaxially arranged on the second driving lead screw 95. A second adjustment sliding groove 39 is formed on the second adjustment sleeve 951. The second adjustment slider 73 is slidably installed in the second adjustment sliding groove 39. A second adjustment rod 952 slidably penetrates through the rotating seat 92. The outer wall of the second adjustment sleeve 951 is rotatably installed on the second adjustment rod 952. A second linkage gear 953 is coaxially installed on the second adjustment sleeve 951. The second linkage gear 953 meshes with the gear ring 91. A second push-pull electromagnet 954 is fixedly installed at one end of the rotating seat 92 away from the gear ring 91. The push rod of the second push-pull electromagnet 954 is connected to the second adjustment rod 952. A second electrode plate 955 is installed on the abutting block 771.The second electrode jack 956 is installed on the bottom wall of the mounting hole 77, and both the second electrode piece 955 and the second electrode jack 956 are electrically connected to the second push-pull electromagnet 954.

[0036] In use, the operator rotates the driving handwheel 352 to drive the power shaft 35 to rotate. During the rotation of the power shaft 35, the first linkage bevel gear 931 will be driven to rotate synchronously. During the rotation of the first linkage gear 942, the second linkage bevel gear 935 will be driven to rotate synchronously. During the rotation of the second linkage bevel gear 935, the linkage shaft 934 will be driven to rotate synchronously. During the rotation of the linkage shaft 934, the third linkage bevel gear 936 will be driven to rotate. During the rotation of the third linkage bevel gear 936, the fourth linkage bevel gear 911 will be driven to rotate. During the rotation of the fourth linkage bevel gear 911, the gear ring 91 will be driven to rotate synchronously. During the rotation of the gear ring 91, the first linkage gear 942 and the second linkage gear 953 will be driven to rotate respectively. During the rotation of the first linkage gear 942, the worm 44 will be driven to rotate. During the rotation of the worm 44, another first clamping assembly 4 will be driven to move synchronously through the synchronous assembly 8, so as to clamp the valve body. When the auxiliary abutting block 422 presses and abuts against the valve body, the auxiliary abutting block 422 will drive the first electrode plate 944 to contact the first electrode jack 945, so as to energize the first push-pull electromagnet 943. The push rod of the energized first push-pull electromagnet 943 will extend. The extended push rod will push the first adjusting rod 941 to move, so as to push the first linkage gear 942 to move away from the gear ring 91, so that the first linkage gear 942 stops rotating. During the rotation of the second linkage gear 953, the second driving lead screw 95 will be driven to rotate. Since the second driving lead screw 95 is threadedly connected to the mounting ring 54, the second driving lead screw 95 will drive the mounting ring 54 to slide along the length direction of the rotating shaft 53, so as to drive the first clamping rod 51 and the second clamping rod 52 to move towards each other, so as to clamp and fix the valve body. When the abutting block 771 contacts the valve body, the abutting block 771 will move towards the mounting hole 77. The second electrode plate 955 at the bottom of the abutting block 771 contacts the second electrode jack 956, so as to energize the second push-pull electromagnet 954. After the second push-pull electromagnet 954 is energized, its push rod will be driven to extend. The extended push rod will drive the second adjusting rod 952 to move. During the movement of the second adjusting rod 952, the second linkage gear 953 will be driven to move synchronously, so that the second linkage gear 953 moves away from the gear ring 91, so that the second linkage gear 953 stops rotating, and then the current position of the second clamping assembly 5 is fixed; When it is necessary to release the clamping of the valve body after the valve body processing is completed, the operator cuts off the power supply of the first push-pull electromagnet 943 and the second push-pull electromagnet 954, so that the first linkage gear 942 and the second linkage gear 953 are respectively re-engaged with the gear ring 91. Then the operator holds the driving handwheel 352 and rotates it reversely, so that the power shaft 35 rotates reversely, so that the gear ring 91 rotates reversely, and then the first clamping assembly 4 and the second clamping assembly 5 release the clamping of the valve body.

[0037] As shown Figures 1 to 8 in the figure, the rotating assembly 6 includes a mounting bracket 61, the mounting bracket 61 is fixedly mounted on the first support base 11, a driving shaft 62 is rotatably mounted on the mounting bracket 61, a rotating handwheel 63 is coaxially mounted on the driving shaft 62, the other end of the driving shaft 62 is coaxially connected to the mounting shaft 32, a limiting disc 64 is coaxially mounted on the driving shaft 62, a plurality of positioning grooves 641 are coaxially formed along the circumferential direction of the limiting disc 64, a limiting rod 65 is rotatably mounted on the mounting bracket 61, one end of the limiting rod 65 is inserted into the positioning groove 641, a fourth return spring 66 is mounted on the other end of the limiting rod 65, and the other end of the fourth return spring 66 is connected to the mounting bracket 61; during use, the staff presses one end of the limiting rod 65 to rotate the limiting rod 65, the fourth return spring 66 is compressed, the other end of the limiting rod 65 moves away from the positioning groove 641, so as to release the restriction on the driving shaft 62, and then the staff drives the rotating handwheel 63 to rotate. During the rotation of the rotating handwheel 63, the driving shaft 62 will be driven to rotate synchronously. During the rotation of the driving shaft 62, the first mounting base 13 will be driven to rotate synchronously, so as to drive the valve body to move synchronously, and further adjust the rotation angle of the valve body, so as to facilitate the staff to process the valve body; when it is necessary to fix the valve body after adjusting the rotation angle, the staff releases the limiting rod 65. Under the action of the fourth return spring 66, one end of the limiting rod 65 will be inserted into the positioning groove 641, so as to limit the rotation of the driving shaft 62.

[0038] The implementation principle of this embodiment is: during use, according to the size of the current valve body, the contact area between the valve body and the expansion assembly 7 is increased by adjusting the expansion assembly 7, so as to adapt to valve bodies of different sizes. Then, the valve body is placed on the expansion assembly 7, and then the driving assembly 2 is used to drive the first support base 11 and the second support base 12 to move towards each other, so as to drive the first mounting base 13 and the second mounting base 14 to move synchronously. Under the action of the linkage assembly 9, the first clamping assembly 4 and the second clamping assembly 5 will be driven to move synchronously. The first clamping assembly 4 and the second clamping assembly 5 will clamp and fix the valve body from different positions, so that the valve body can be better clamped, and it is convenient to clamp and fix valve bodies of different sizes. The first clamping assembly 4 and the second clamping assembly 5 cooperate to clamp the valve body, so as to improve the clamping and fixing effect of the valve body and improve the stability of the valve body during the processing.

[0039] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention by using the above technical content without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, all changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the present invention's solution fall within the protection scope of this technical solution.

Claims

1. A valve body clamping tooling, characterized in that: It includes a base (1), on which a first support base (11) and a second support base (12) are slidably arranged. A driving component (2) for driving the first support base (11) and the second support base (12) to move towards each other is arranged on the base (1). A locking component (3) is arranged on the first support base (11). A first mounting base (13) is rotatably arranged on the first support base (11). A second mounting base (14) is rotatably arranged on the second support base (12). First clamping components (4) are arranged on both the first mounting base (13) and the second mounting base (14). A second clamping component (5) is further arranged on the second mounting base (14). A rotating component (6) for driving the first mounting base (13) to rotate is arranged on the first support base (11). An expanding component (7) for increasing the contact area between itself and the valve body is arranged on the second clamping component (5). A synchronizing component (8) for synchronously clamping the two first clamping components (4) is arranged on the second mounting base (14). A linkage component (9) for linking the driving component (2) with the second clamping component (5) and the synchronizing component (8) is arranged on the second support base (12).

2. The valve body clamping tooling according to claim 1, characterized in that: The first clamping component (4) includes a clamping seat (41), a first clamping block (42) and a second clamping block (43). The clamping seat (41) is fixedly arranged on the first mounting base (13). A worm (44) is rotatably arranged on the clamping seat (41). One end of the first clamping block (42) is fixedly provided with a first worm gear (421). The first worm gear (421) is rotatably arranged on one side of the clamping seat (41). One end of the second clamping block (43) is fixedly provided with a second worm gear (431). The second worm gear (431) is rotatably arranged on the other side of the clamping seat (41). Both the first worm gear (421) and the second worm gear (431) are engaged with the worm (44). A plurality of auxiliary abutting blocks (422) are evenly arranged along the length direction of the first clamping block (42). The auxiliary abutting blocks (422) are slidably connected with the first clamping block (42). An auxiliary spring (423) is arranged on the auxiliary abutting blocks (422). The other end of the auxiliary spring (423) is connected to the first clamping block (42).

3. The clamping tooling for valve body according to claim 2, wherein: The second clamping assembly (5) includes a first clamping rod (51) and a second clamping rod (52). The first clamping rod (51) is slidably arranged at one end of the second mounting seat (14), and the second clamping rod (52) is slidably arranged at the other end of the second mounting seat (14). A first clamping cylinder (511) is slidably arranged on the first clamping rod (51), and one end of the first clamping cylinder (511) away from the first clamping rod (51) is slidably arranged on the first mounting seat (13). A second clamping cylinder (521) is slidably arranged on the second clamping rod (52), and one end of the second clamping cylinder (521) away from the second clamping rod (52) is slidably arranged on the first mounting seat (13). The second mounting seat (14) is rotatably arranged on the second support seat (12) through a rotating shaft (53). An installation ring (54) is slidably arranged on the rotating shaft (53). A first connecting rod (541) and a second connecting rod (542) are hinged on the installation ring (54). The other end of the first connecting rod (541) is hinged to the first clamping rod (51), and the second connecting rod (542) is hinged to the second clamping rod (52).

4. A valve body clamping tooling according to claim 3, characterized in that: The synchronization assembly (8) includes two first bevel gears (81) and two first rotating shafts (82). The two first bevel gears (81) correspond to the two worm gears (44) one by one. The first bevel gears (81) are coaxially arranged on the worm gears (44). The two first rotating shafts (82) correspond to the two clamping seats (41) one by one. The first rotating shafts (82) are rotatably arranged on the clamping seats (41) along the vertical direction. One end of the first rotating shaft (82) is coaxially provided with a second bevel gear (821). The second bevel gear (821) meshes with the first bevel gear (81). A first shaft cylinder (823) is slidably sleeved on the first rotating shaft (82). A first limiting block (822) is arranged on the first rotating shaft (82). A first limiting groove (824) is formed in the first shaft cylinder (823) along its length direction. The first limiting block (822) is slidably arranged in the first limiting groove (824). A third bevel gear (825) is coaxially arranged on the first shaft cylinder (823). A second rotating shaft (83) is rotatably arranged on the first clamping rod (51). A second shaft cylinder (84) is rotatably arranged on the first clamping cylinder (511). The second shaft cylinder (84) is slidably arranged on the second rotating shaft (83). A second limiting block (831) is arranged on the second rotating shaft (83). A second limiting groove (841) is formed in the second shaft cylinder (84) along its length direction. The second limiting block (831) is slidably arranged in the second limiting groove (841). Fourth bevel gears (85) are coaxially arranged on both the second rotating shaft (83) and the second shaft cylinder (84). The fourth bevel gear (85) meshes with the third bevel gear (825).

5. A valve body clamping tooling according to claim 4, characterized in that: The driving assembly (2) includes a first rack (21) and a second rack (22). The first rack (21) is fixedly arranged at the bottom of the first support base (11), and the second rack (22) is fixedly arranged at the bottom of the second support base (12). Both the first rack (21) and the second rack (22) are slidably arranged in a driving groove (23). A driving gear (75) is rotatably arranged in the driving groove (23). The first rack (21) and the second rack (22) are respectively engaged with two sides of the driving gear (75).

6. The valve body clamping tooling according to claim 5, wherein: The locking component (3) includes a locking rod (31). The locking rod (31) is slidably arranged on the first support base (11). A first return spring (311) is arranged on the first support base (11), and the other end of the first return spring (311) is connected to the locking rod (31). The first mounting base (13) is rotatably arranged on the first support base (11) through a mounting shaft (32). A rotating ring (33) is rotatably arranged on the first support base (11). The rotating ring (33) is coaxially arranged with the mounting shaft (32). A pushing ring (34) is coaxially arranged on the mounting shaft (32). The pushing ring (34) is slidably connected to the rotating ring (33). A plurality of second return springs (341) are uniformly arranged on the pushing ring (34) along its circumferential direction, and the other ends of the second return springs (341) are connected to the rotating ring (33). A plurality of telescopic rods (342) are uniformly arranged on the pushing ring (34) along its circumferential direction, and the other ends of the telescopic rods (342) are fixedly connected to the rotating ring (33). A driving shaft (62) is rotatably arranged on the base (1). A driving gear (351) is coaxially arranged on the driving shaft (62). A driving handwheel (352) is coaxially arranged at one end of the driving shaft (62). A moving groove (36) is formed at one end of the base (1). A moving block (361) is slidably arranged in the moving groove (36). A first driving lead screw (37) is rotatably arranged on the moving block (361). A driven gear (371) is coaxially and fixedly arranged at one end of the first driving lead screw (37). The driven gear (371) meshes with the driving gear (351). A third return spring (38) is arranged in the moving groove (36), and the other end of the third return spring (38) is connected to the moving block (361). An adjustment sliding groove (39) is formed at the bottom of the first support base (11). An adjustment driven block (391) is slidably arranged in the adjustment sliding groove (39). The adjustment driven block (391) is threadedly connected to the first driving lead screw (37). An adjustment seat (312) is slidably sleeved at the bottom of the locking rod (31). A locking bolt (313) for fixing itself is arranged on the adjustment seat (312). An adjustment driving block (314) is arranged at the bottom of the adjustment seat (312). The adjustment driving block (314) is slidably connected to the adjustment driven block (391). A plug rod (315) is also arranged at the bottom of the adjustment seat (312). A plurality of positioning holes (316) are formed in the driving groove (23) along its length direction. The plug rod (315) is inserted into the positioning holes (316).

7. A valve body clamping tooling according to claim 6, characterized in that: The expansion component (7) includes a support plate (71), the support plate (71) is fixedly arranged on the first clamping cylinder (511), a plurality of sliding grooves (72) are uniformly formed in the circumferential direction of the support plate (71), a slider (73) is slidably arranged in the sliding groove (72), one end of the slider (73) is fixedly provided with an arc-shaped block (731), a toggle rod (732) is arranged on the slider (73), an expansion gear (711) is rotatably arranged on the support plate (71), a plurality of arc-shaped grooves (74) are coaxially formed in the expansion gear (711), the toggle rod (732) is slidably arranged in the arc-shaped groove (74), a driving gear (75) is rotatably arranged on the support plate (71), the driving gear (75) is engaged with the expansion gear (711), a driving motor (76) is arranged on the support plate (71), and the driving motor (76) is coaxially connected with the driving gear (75).

8. A valve body clamping tooling according to claim 7, characterized in that: An installation hole (77) is formed in the arc-shaped block (731), a contact block (771) is slidably arranged in the installation hole (77), a fifth return spring (772) is arranged at the bottom of the contact block (771), and the other end of the fifth return spring (772) is connected with the bottom wall of the installation hole (77).

9. A valve body clamping tooling according to claim 8, characterized in that: The linkage assembly (9) includes a gear ring (91). A rotating seat (92) is coaxially arranged on the upper part of the rotating shaft (53). The rotating seat (92) is rotatably arranged on the second support seat (12). A fixing frame (921) is fixedly arranged on the rotating seat (92). The gear ring (91) is rotatably arranged on the fixing frame (921). An installation block (93) is fixedly arranged at the bottom of the second support seat (12). The driving shaft (62) slidably penetrates through the installation block (93). A first linkage bevel gear (931) is rotatably arranged on the installation block (93). A limiting key block (932) is coaxially and fixedly arranged on the driving shaft (62) along its length direction. A limiting key groove (933) is formed on the first linkage bevel gear (931). The limiting key block (932) is slidably arranged in the limiting key groove (933). A linkage shaft (934) is rotatably arranged on the installation block (93) along the vertical direction. A second linkage bevel gear (935) is coaxially arranged at the bottom of the linkage shaft (934). The second linkage bevel gear (935) meshes with the first linkage bevel gear (931). A third linkage bevel gear (936) is coaxially arranged at the top of the linkage shaft (934). A fourth linkage bevel gear (911) is coaxially arranged on the gear ring (91). The fourth linkage bevel gear (911) meshes with the third linkage bevel gear (936). One end of the worm (44) away from the first worm gear (421) extends outside the rotating seat (92). A first adjustment sleeve (94) is coaxially and slidably arranged on the worm (44). A first adjustment limiting block is coaxially and fixedly arranged on the worm (44). A first adjustment sliding groove (39) is formed on the first adjustment sleeve (94). The first adjustment limiting block is slidably arranged in the first adjustment sliding groove (39). A first adjustment rod (941) slidably penetrates through the rotating seat (92). The outer wall of the first adjustment sleeve (94) is rotatably arranged on the first adjustment rod (941). A first linkage gear (942) is coaxially arranged on the first adjustment sleeve (94). The first linkage gear (942) meshes with the gear ring (91). A first push-pull electromagnet (943) is arranged at one end of the rotating seat (92) away from the gear ring (91). The push rod of the first push-pull electromagnet (943) is connected to the first adjustment rod (941). A first electrode plate (944) is arranged on the auxiliary abutting block (422). A first electrode jack (945) is arranged on the first clamping block (42). Both the first electrode plate (944) and the first electrode jack (945) are electrically connected to the first push-pull electromagnet (943). A second driving lead screw (95) is rotatably arranged on the rotating seat (92). One end of the second driving lead screw (95) is threadedly connected to the mounting ring (54), and a second adjustment sleeve (951) is coaxially and slidably arranged at the other end. A second adjustment limiting block is coaxially arranged on the second driving lead screw (95).A second adjustment chute (39) is provided on the second adjustment sleeve (951), the second adjustment limit block is slidably arranged in the second adjustment chute (39), a second adjustment rod (952) is slidably penetrated through the rotating seat (92), the outer wall of the second adjustment sleeve (951) is rotatably arranged on the second adjustment rod (952), a second linkage gear (953) is coaxially arranged on the second adjustment sleeve (951), the second linkage gear (953) is engaged with the gear ring (91), a second push-pull electromagnet (954) is arranged at one end of the rotating seat (92) far away from the gear ring (91), the push rod of the second push-pull electromagnet (954) is connected to the second adjustment rod (952), a second electrode plate (955) is arranged on the abutting block (771), a second electrode socket (956) is arranged on the bottom wall of the mounting hole (77), and both the second electrode plate (955) and the second electrode socket (956) are electrically connected to the second push-pull electromagnet (954).

10. A valve body clamping tooling according to claim 1, characterized in that: The rotation component (6) includes an installation frame (61), the installation frame (61) is fixedly arranged on the first support base (11), a driving shaft (62) is rotatably arranged on the installation frame (61), a rotation handwheel (63) is coaxially arranged on the driving shaft (62), the other end of the driving shaft (62) is coaxially connected with the installation shaft (32), a limiting disc (64) is coaxially arranged on the driving shaft (62), a plurality of positioning grooves (641) are coaxially formed in the limiting disc (64), a limiting rod (65) is rotatably arranged on the installation frame (61), one end of the limiting rod (65) is inserted into the positioning groove (641), and a fourth return spring (66) is arranged at the other end of the limiting rod (65), and the other end of the fourth return spring (66) is connected with the installation frame (61).

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