A valve body clamping tool

Abstract

The present invention relates to the technical field of mechanical positioning fixtures. Specifically disclosed is a valve body clamping tool, comprising a base, a first support seat and a second support seat being slidingly provided on the base, a driving assembly being provided on the base, a locking assembly being provided on the first support seat, a first mounting seat being rotatably provided on the first support seat, a second mounting seat being rotatably provided on the second support seat, a first clamping assembly being provided on both the first mounting seat and the second mounting seat, a second clamping assembly being further provided on the second mounting seat, a rotating assembly being provided on the first support seat, an expansion assembly being provided on the second clamping assembly, a synchronization assembly being provided on the second mounting seat, and a linkage assembly being provided on the second support seat. The advantage of the present invention is that by providing the first clamping assembly, the second clamping assembly and the synchronization assembly, valve bodies of different shapes and sizes can be clamped and fixed.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical positioning fixtures, in particular to a valve body clamping tool. Background Art

[0002] After the valve is cast, it needs to be milled to form. In order to ensure the processing accuracy, the valve body needs to be well positioned to ensure the processing quality. At present, the cast valve body needs to be clamped and fixed during the surface finishing process to improve the processing efficiency. However, the existing tooling fixtures are not convenient for adjusting the fixture size, which greatly reduces the applicability of the fixture. Therefore, when valve bodies of different sizes need to be processed, new fixtures need to be developed, which leads to high processing costs. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the present application provides a valve body clamping tool.

[0004] This application provides a valve body clamping tool, which adopts the following technical solution:

[0005] The cam is secured to a position 520° and is adapted to engage said first and second support members, wherein the cam is secured to a position 520° and adapted to engage said second support member when the cam is secured.

[0006] By adopting the above technical solution, when in 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 to adapt to valve bodies of different sizes, and 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 in a direction close to 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 better clamped 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, so as to improve the clamping and fixing effect of the valve body and improve the stability of the valve body during processing.

[0007] Optionally, the first clamping assembly includes a clamping seat, a first clamping block and a second clamping block, the clamping seat is fixedly provided on the first mounting seat, a worm is rotatably provided on the clamping seat, a first worm gear is fixedly provided at one end of the first clamping block, the first worm gear is rotatably provided on one side of the clamping seat, a second worm gear is fixedly provided at one end of the second clamping block, the second worm gear is rotatably provided on the other side of the clamping seat, the first worm gear and the second worm gear are both engaged with the worm, a plurality of auxiliary abutment blocks are evenly provided on the first clamping block along its own length direction, the auxiliary abutment blocks are slidably connected to the first clamping block, an auxiliary spring is provided on the auxiliary abutment block, and the other end of the auxiliary spring is connected to the first clamping block.

[0008] By adopting the above technical solution, when in use, the worm is driven to rotate, so that the first clamping block and the second clamping block 43 move toward each other, thereby clamping and fixing the valve body.

[0009] Optionally, the second clamping assembly includes a first clamping rod and a second clamping rod, the first clamping rod is slidably set at one end of the second mounting seat, the second clamping rod is slidably set at the other end of the second mounting seat, a first clamping cylinder is slidably set on the first clamping rod, the first clamping cylinder is slidably set on the first mounting seat away from one end of the first clamping rod, a second clamping cylinder is slidably set on the second clamping rod, the second clamping cylinder is slidably set on the first mounting seat away from one end of the second clamping rod, the second mounting seat is rotatably set on the second support seat via a rotating shaft, a mounting ring is slidably set on the rotating shaft, a first connecting rod and a second connecting rod are hingedly set on the mounting 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.

[0010] By adopting the above technical solution, when in use, the mounting ring is driven to slide along the length direction of the rotating shaft. During the movement of the mounting ring, the first connecting rod and the second connecting rod will push the first clamping rod and the second clamping rod to move toward each other. During the movement of the first clamping rod and the second clamping rod, the first clamping tube and the second clamping tube will be synchronously driven to move, thereby clamping and fixing the valve body.

[0011] 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-to-one, the first bevel gears are coaxially arranged on the worm gear, the two first rotating shafts correspond to the two clamping seats one-to-one, the first rotating shaft is rotatable on the clamping seat along the vertical direction, one end of the first rotating shaft is coaxially provided with a second bevel gear, the second bevel gear is meshed with the first bevel gear, a first shaft cylinder is slidingly sleeved on the first rotating shaft, a first limiting block is provided on the first rotating shaft, and a first shaft cylinder is opened along its length direction. The limiting groove, the first limiting block is slidably arranged in the first limiting groove, the first shaft cylinder is coaxially provided with a third bevel gear, the first clamping rod is rotatably provided with a second shaft cylinder, the first clamping cylinder is rotatably provided with a second shaft cylinder, the second shaft cylinder is slidably provided on the second shaft, a second limiting block is provided on the second shaft, a second limiting groove is opened on the second shaft cylinder along its own length direction, the second limiting block is slidably provided in the second limiting groove, the second shaft and the second shaft cylinder are coaxially provided with a fourth bevel gear, and the fourth bevel gear is meshed with the third bevel gear.

[0012] By adopting the above technical solution, when one of the worms is driven to rotate, the two first clamping assemblies move synchronously, thereby facilitating clamping of the valve body.

[0013] Optionally, the driving assembly includes a first rack and a second rack, the first rack is fixedly set at the bottom of the first support seat, the second rack is fixedly set at the bottom of the second support seat, the first rack and the second rack are both slidably set in the driving groove, and a driving gear is rotatably set in the driving groove, and the first rack and the second rack are respectively engaged with the two sides of the driving gear.

[0014] 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, thereby driving the first support seat and the second support seat to move toward each other, so that valve bodies of different sizes can be clamped and fixed.

[0015] The locking mechanism is configured to lock the locking mechanism, wherein the locking mechanism comprises a lock rod, wherein the lock rod is slidably mounted on the first support seat, the lock rod has a first return spring disposed on the first support seat, and the other end of the first return spring is connected to the locking mechanism. The first mounting seat is rotatably mounted on the first support seat, and the first support seat is rotatably mounted on the first support seat, wherein the first support seat is rotatably mounted on the The top end of the driving member is mounted on a link rod and the bottom end of the driving member is mounted on a link rod. The driving member is mounted on a link rod with a first end in rotation on the link rod of the driving member. The driving member is mounted on a link rod. The driving member is mounted

[0016] By adopting the above technical solution, when the driving component 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 insertion 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.

[0017] 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 own circumference, a slider is slidingly arranged in the sliding groove, an arc block is fixedly arranged at one end of the slider, a toggle rod is provided 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 set in the arc groove, a driving gear is rotatably arranged on the support plate, the driving gear is meshed with the expansion gear, a driving motor is provided on the support plate, and the driving motor is coaxially connected to the driving gear.

[0018] By adopting the above technical solution, when it is necessary to clamp and fix a valve body with a larger cross-section, the drive motor is started to drive the drive gear to rotate. During the rotation of the drive gear, the expansion gear is driven to rotate, thereby driving the slider to slide along the slide groove, so that the arc block moves in the direction away from the support plate, thereby increasing the contact area between the valve body and the valve body.

[0019] Optionally, a mounting hole is provided on the arc-shaped block, an abutment block is slidably provided in the mounting hole, a fifth return spring is provided at the bottom of the abutment block, and the other end of the fifth return spring is connected to the bottom wall of the mounting hole.

[0020] By adopting the above technical solution, when the second clamping assembly is driven to clamp and fix the valve body, the two extension assemblies will move towards each other, so that the abutment block abuts against the surface of the valve body, thereby improving the clamping stability of the valve body.

[0021] Optionally, the linkage assembly includes a gear ring, a rotating seat is coaxially arranged on the upper part of the rotating shaft, the rotating seat is rotatably arranged on the second support seat, a fixing frame is fixed on the rotating seat, the gear ring is rotatably arranged on the fixing frame, and a mounting block is fixedly arranged on the bottom of the second support seat, the driving shaft is slidably passed through the mounting block, and a first linkage bevel gear is rotatably arranged on the mounting block, and a limit key block is coaxially fixed along the length direction of the driving shaft, a limit key slot is provided on the first linkage bevel gear, and the limit key block is slidably arranged in the limit key slot, and a linkage shaft is rotatably provided on the mounting block along the vertical direction, and the bottom of the linkage shaft is coaxially arranged There is a second linkage bevel gear, the second linkage bevel gear is meshed with the first linkage bevel gear, a third linkage bevel gear is coaxially arranged on the top of the linkage shaft, a fourth linkage bevel gear is coaxially arranged on the gear ring, the fourth linkage bevel gear is meshed with the third linkage bevel gear, the worm extends away from one end of the first worm gear to the outside of the rotating seat, a first adjustment sleeve is coaxially slidably arranged on the worm, a first adjustment limit block is coaxially fixed on the worm, a first adjustment slot is opened on the first adjustment sleeve, the first adjustment limit block is slidably arranged in the first adjustment slot, a first adjustment rod is slidably penetrated on the rotating seat, and the outer wall of the first adjustment sleeve is rotatably arranged on the first adjustment The cam is connected to the gear ring by a first adjusting cam, and the cam is connected to the gear by a second adjusting cam. The second adjusting sleeve is provided with a second adjusting slot, the second adjusting limit block is slidably arranged in the second adjusting slot, a second adjusting rod is slidably penetrated on the rotating seat, the outer wall of the second adjusting sleeve is rotatably set on the second adjusting rod, a second linkage gear is coaxially arranged on the second adjusting sleeve, the second linkage gear is meshed with the gear ring, a second push-pull electromagnet is provided on the end of the rotating seat away from the gear ring, the push-pull rod of the second push-pull electromagnet is connected to the second adjusting rod, a second electrode sheet is provided on the abutment block, and a second electrode socket is provided on the bottom wall of the mounting hole, the second electrode sheet and the second electrode socket are both electrically connected to the second push-pull electromagnet.

[0022] 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.

[0023] Optionally, the rotating assembly includes a mounting frame, which is fixedly mounted on the first support seat, a drive shaft is rotatably mounted on the mounting frame, a rotating handwheel is coaxially mounted on the drive shaft, the other end of the drive shaft is coaxially connected to the mounting shaft, a limit plate is coaxially mounted on the drive shaft, a plurality of positioning grooves are coaxially provided on the limit plate, a limit rod is rotatably mounted on the mounting frame, one end of the limit rod is inserted into the positioning groove, a fourth reset spring is mounted on the other end of the limit rod, and the other end of the fourth reset spring is connected to the mounting frame.

[0024] By adopting the above technical solution, when the valve body needs to be rotated to facilitate processing of the valve body, the staff presses the limit rod to allow the limit plate to rotate, and then rotates the rotating handwheel to drive the drive shaft to rotate, thereby driving the installation shaft to rotate, and then rotating the first mounting seat and the valve body.

[0025] The present invention has the following advantages:

[0026] 1. By providing a first clamping assembly, a second clamping assembly and a synchronization assembly, valve bodies of different shapes and sizes can be clamped and fixed;

[0027] 2. By providing a locking component and a linkage component, the first clamping component and the second clamping component can be driven simultaneously to clamp the valve body, reducing the labor intensity of the staff and reducing the complexity of the operation;

[0028] 3. By setting up a rotating assembly, the clamped valve body can be rotated to facilitate production and processing of different positions of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0030] Figure 2 Schematic diagram of the installation structure of the rotating assembly of the present invention;

[0031] Figure 3 This is a schematic diagram of the installation structure of the moving block of the present invention;

[0032] Figure 4 This is a schematic diagram of the installation structure of the synchronization component of the present invention;

[0033] Figure 5 Schematic diagram of the installation structure of the drive assembly of the present invention;

[0034] Figure 6 Schematic diagram of the installation structure of the locking assembly of the present invention;

[0035] Figure 7Schematic diagram of the installation structure of the linkage assembly of the present invention;

[0036] Figure 8 This is a schematic diagram of the installation structure of the expansion component of the present invention;

[0037] In the figure: 1. base; 11. first support base; 12. second support base; 13. first mounting base; 14. second mounting base; 2. driving assembly; 21. first rack; 22. second rack; 23. driving slot; 24. driving gear; 3. locking assembly; 31. locking rod; 311. first return spring; 312. adjustment base; 313. locking bolt; 314. adjustment driving block; 315. insertion 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 slot; 361. moving block; 37. first driving screw rod; 371, driven gear; 38, third return spring; 39, adjustment slide; 391, adjustment driven block; 4, first clamping assembly; 41, clamping seat; 42, first clamping block; 421, first worm gear; 422, auxiliary abutment 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 bracket; 62, drive shaft; 63, rotating handwheel; 64, limit plate; 641, positioning groove; 65, limit Positioning rod; 66, fourth return spring; 7, extension assembly; 71, support plate; 711, extension gear; 72, slide groove; 73, slider; 731, arc block; 732, toggle lever; 74, arc groove; 75, drive gear; 76, drive motor; 77, mounting hole; 771, abutment 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, limit key block; 933, limit key slot; 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 sheet; 945, first electrode socket; 95, second driving screw; 951, second adjusting sleeve; 952, second adjusting rod; 953, second linkage gear; 954, second push-pull electromagnet; 955, second electrode sheet; 956, second electrode socket. DETAILED DESCRIPTION

[0038] 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.

[0039] like Figures 1 to 8 As shown, a valve body clamping tool is shown, which includes a base 1, a first support seat 11 and a second support seat 12 are slidably mounted on the base 1, a driving component 2 is mounted on the base 1 for driving the first support seat 11 and the second support seat 12 to move in a direction approaching each other, a locking component 3 is mounted on the first support seat 11 for fixing its own position, a first mounting seat 13 is rotatably mounted on the first support seat 11, and a second mounting seat 14 is rotatably mounted on the second support seat 12, a first clamping component 4 is mounted on the first mounting seat 13 and the second mounting seat 14, and a second clamping component 5 is also mounted on the second mounting seat 14, a rotating component 6 for driving the first mounting seat 13 to rotate is mounted on the first support seat 11, an expansion component 7 for increasing the contact area between the second clamping component 5 and the valve body is mounted on the second clamping component 5, a synchronizing component 8 for synchronously clamping the two first clamping components 4 is mounted on the second support seat 12, and a locking component 3 for fixing the driving component 2 and the second support seat 12 is mounted The linkage component 9 is linked to the two clamping components 5 and the synchronization component 8; when in use, according to the size of the current valve body, the contact area between the valve body and the expansion component 7 is increased by adjusting the expansion component 7 to adapt to valve bodies of different sizes, and then the valve body is placed on the expansion component 7, and then the driving component 2 drives the first support seat 11 and the second support seat 12 to move in the direction of approaching each other, thereby driving the first mounting seat 13 and the second mounting seat 14 to move synchronously, and under the action of the linkage component 9, the first clamping component 4 and the second clamping component 5 will be driven synchronously to move, and the first clamping component 4 and the second clamping component 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 component 4 and the second clamping component 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 processing.

[0040] like 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 mounted on the first mounting seat 13. A worm 44 is rotatably mounted on the clamping seat 41. A first worm gear 421 is fixedly mounted on one end of the first clamping block 42. The first worm gear 421 is rotatably mounted on one side of the clamping seat 41. A second worm gear 431 is fixedly mounted on one end of the second clamping block 43. The second worm gear 431 is rotatably mounted on the other side of the clamping seat 41. The first worm gear 421 and the second worm gear 431 are both engaged with the worm 44. A plurality of auxiliary abutment blocks 422 are evenly mounted on the first clamping block 42 along its own length direction. The auxiliary abutment blocks 422 are slidably connected to the first clamping block 42. An auxiliary spring 423 is mounted on the auxiliary abutment block 422. The other end of the auxiliary spring 423 is connected to the first clamping block 42. The second mounting seat 14 is equipped with a first clamping assembly 4 with the same structure and size; when in use, the worm 44 is driven to rotate, and the first worm gear 421 and the second worm gear 431 are driven to rotate synchronously during the rotation of the worm 44, and the first clamping block 42 is driven to rotate synchronously during the rotation of the first worm gear 421, and the second clamping block 43 is driven to rotate synchronously during the rotation of the second worm gear 431, so that the first clamping block 42 and the second clamping block 43 move toward each other, so that the valve body can be clamped and fixed. Since the surface of the valve body may have irregular protrusions, when the first clamping block 42 moves toward a position close to the valve body, multiple auxiliary abutment blocks 422 will contact the surface of the valve body, and then the auxiliary spring 423 is compressed, so that the auxiliary abutment block 422 can abut the valve body more firmly, thereby improving the stability of the valve body during processing.

[0041] like 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 on one end of the second mounting seat 14, and the second clamping rod 52 is slidably arranged on 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 consistent with the length direction of the base 1. The first clamping rod 51 and the second clamping rod 52 both 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. The first clamping cylinder 511 is slidably mounted on the second mounting seat 14 away from one end of the first clamping rod 51. The second clamping cylinder 521 is slidably mounted on the first mounting seat 13 on the second clamping rod 52 along its own length direction. The second clamping cylinder 521 is slidably mounted on the first mounting seat 13 at one end away from the second clamping rod 52. The first clamping cylinder 511 and the second clamping cylinder 521 both slide along the length direction of the first mounting seat 13. The second mounting seat 14 is rotatably mounted on the second supporting seat 12 through the rotating shaft 53. A mounting ring 54 is slidably mounted on the rotating shaft 53 along its own length direction. The first connecting rod 541 and the second connecting rod 542 are hingedly mounted on the mounting ring 54. The other end of the first connecting rod 541 is hinged to the second connecting rod 542. When the first clamping rod 51 and the second clamping rod 52 are in contact with each other, the first clamping rod 51 and the second clamping rod 52 are moved to the left and right sides of the first clamping rod 51. When the first clamping rod 51 and the second clamping rod 52 are in contact with each other, the first clamping rod 51 and the second clamping rod 52 are moved to the right and left sides of the first clamping rod 51. When the first clamping rod 51 and the second clamping rod 52 are in contact with each other, the first clamping rod 51 and the second clamping rod 52 are moved to the left and right sides of the second clamping rod 52. The holding cylinder 521 is slidably installed on the second clamping rod 52. Therefore, when the driving component 2 drives the first support seat 11 and the second support seat 12 to move toward 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, thereby accommodating the first clamping rod 51 and the second clamping rod 52, and thus will not affect the movement of the first support seat 11 and the second support seat 12; when it is necessary to loosen the clamping fixed state of the valve body, drive the mounting ring 54 to slide in the opposite direction along the length direction of the rotating shaft 53.

[0042] like Figures 1 to 8As shown, 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-to-one. The first bevel gear 81 is coaxially mounted on the end of the worm gear 44 away from the first worm gear 421 and the second worm gear 431. The two first rotating shafts 82 correspond to the two clamping seats 41 one-to-one. The first rotating shaft 82 is rotatably mounted on the clamping seat 41 along the vertical direction. One end of the first rotating shaft 82 is coaxially mounted with the second bevel gear 821, and the second bevel gear 821 is meshed with the first bevel gear 81. A first shaft cylinder 823 is slidingly sleeved on the first rotating shaft 82 along its own length direction. A first limit block 822 is installed on the first rotating shaft 82. The first shaft cylinder 8 23 is provided with a first limiting groove 824 along its own length direction, the first limiting block 822 is slidably installed in the first limiting groove 824, and the third bevel gear 825 is coaxially installed on the first shaft cylinder 823 at one end away from the first rotating shaft 82, the second rotating shaft 83 is rotatably installed on the first clamping rod 51, and the length direction of the second rotating shaft 83 is consistent with the length direction of the first clamping rod 51, the second shaft cylinder 84 is rotatably installed on the first clamping cylinder 511, and the length direction of the second shaft cylinder 84 is consistent with the length direction of the first clamping cylinder 511, the second shaft cylinder 84 is slidably sleeved on the second rotating shaft 83, and the second limiting block 831 is installed on the second rotating shaft 83, and the second shaft cylinder 84 is along its own length direction. The second limiting groove 841 is provided in the direction, and the second limiting block 831 is slidably installed in the second limiting groove 841. The fourth bevel gear 85 is coaxially installed on the second rotating shaft 83 and the second shaft cylinder 84, and the fourth bevel gear 85 is meshed with the third bevel gear 825. When in use, one of the worm gears 44 is driven to rotate. During the rotation of the worm gear 44, the first worm gear 421 and the second worm gear 431 are driven to rotate, thereby clamping 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 is driven to rotate. During the rotation of the second bevel gear 821, the first rotating shaft 82 is driven to rotate synchronously. The first rotating shaft 8 During the rotation of 2, the first shaft cylinder 823 will be driven to rotate synchronously, and during the rotation of the first shaft cylinder 823, the third bevel gear 825 will be driven to rotate, and during the rotation of the third bevel gear 825, the fourth bevel gear 85 will be driven to rotate synchronously, and during the rotation of the fourth bevel gear 85, the second rotating shaft 83 will be driven to rotate, and during the rotation of the second rotating shaft 83, the second shaft cylinder 84 will be driven to rotate synchronously, and during the rotation of the second shaft cylinder 84, another set of fourth bevel gear 85, third bevel gear 825, first shaft cylinder 823, second bevel gear 821 and first bevel gear 81 will be driven to rotate another worm 44, thereby driving the two first clamping assemblies 4 to clamp and fix the valve body at the same time;By slidingly sleeved a first shaft cylinder 823 on the first rotating shaft 82 and sleeved a second shaft cylinder 84 on the second rotating shaft 83, the first rotating shaft 82 can be slidably received within the first shaft cylinder 823 when the first clamping rod 51 and the second clamping rod 52 move toward each other. Furthermore, when the first support seat 11 and the second support seat 12 move toward each other, the second rotating shaft 83 can be slidably received within the second shaft cylinder 84, thereby not affecting the normal operation of other components.

[0043] like Figures 1 to 8 As shown, the driving assembly 2 includes a first rack 21 and a second rack 22. A driving groove 23 is opened on the base 1 along its own length direction. The length directions of the first rack 21, the second rack 22 and the driving groove 23 are consistent with the length direction of the base 1. The first rack 21 is fixedly mounted on the bottom of the first support seat 11, and the second rack 22 is fixedly mounted on the bottom of the second support seat 12. The first rack 21 and the second rack 22 are both slidably mounted in the driving groove 23. The middle position of the driving groove 23 is rotatably mounted with a driving gear 75. The first rack 21 and the second rack 22 are fixedly mounted on the bottom of the second support seat 12. The two racks 22 are respectively engaged with the two sides of the gear; when the valve body needs to be clamped, the staff drives the driving gear 75 to rotate. During the rotation of the driving gear 75, the first rack 21 and the second rack 22 will be driven to move in opposite directions, thereby driving the first support seat 11 and the second support seat 12 to move toward each other, so that valve bodies of different sizes can be clamped and fixed; when the two first support seats 11 and the second support seat 12 need to be driven to move away from each other, the staff can drive the driving gear 75 to rotate in the opposite direction.

[0044] like Figures 1 to 8As shown, the locking assembly 3 includes a locking rod 31, which is slidably mounted on the first support seat 11 along the vertical direction, and a first return spring 311 is fixedly mounted on the first support seat 11, and the other end of the first return spring 311 is connected to the locking rod 31, and the first mounting seat 13 is rotatably mounted on the first supporting seat 11 through the mounting shaft 32, and a rotating ring 33 is rotatably mounted on the first supporting seat 11, and the rotating ring 33 is coaxially arranged with the mounting shaft 32, and a pushing ring 34 is coaxially fixedly mounted on the mounting shaft 32, and the outer wall of the pushing ring 34 is slidably connected to the inner wall of the rotating ring 33, and the pushing ring 34 is rotatably connected along its own circumference. A plurality of second return springs 341 are evenly installed on the base 1, and the other end of the second return spring 341 is fixedly connected to the rotating ring 33. A plurality of telescopic rods 342 are evenly installed on the push ring 34 along its circumference. The other end of the telescopic rod 342 is fixedly connected to the rotating ring 33. A driving shaft 62 is rotatably installed on the base 1. The driving shaft 62 is located in the driving groove 23. A driving gear 351 is coaxially fixedly installed on the driving shaft 62. A driving hand wheel 352 is coaxially installed on one end of the driving shaft 62. A moving groove 36 is opened at one end of the base 1. The length direction of the moving groove 36 is consistent with the width direction of the base 1. The moving block 361 is slidably installed, and the first driving screw rod 37 is rotatably installed on the moving block 361. The first driving screw rod 37 is located in the driving groove 23. One end of the first driving screw rod 37 is coaxially fixedly installed with a driven gear 371. The driven gear 371 is meshed with the driving gear 351. A third return spring 38 is installed in the moving groove 36. The other end of the third return spring 38 is connected to the moving block 361. An adjustment slot 39 is provided at the bottom of the first support seat 11. The length direction of the adjustment slot 39 is consistent with the length direction of the moving slot 72. An adjustment follower block 391 is slidably installed in the adjustment slot 39. The movable block 391 is threadedly connected to the first driving screw rod 37. The bottom sliding sleeve of the locking rod 31 is provided with an adjustment seat 312. The adjustment seat 312 is installed with a locking bolt 313 for fixing its own position. The bottom of the adjustment seat 312 is installed with an adjustment driving block 314. The adjustment driven block 391 and the adjustment driving block 314 are both trapezoidal. The oblique waist edge of the adjustment driving block 314 is slidably connected to the oblique waist edge of the adjustment driven block 391. The bottom of the adjustment seat 312 is also fixedly installed with an insertion rod 315. A plurality of positioning holes 316 are opened in the driving groove 23 along its own length direction. The insertion rod 315 is inserted into the positioning hole 316.When the staff needs to clamp and fix the valve body, they turn 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 screw rod 37 will be driven to rotate. Since the adjustment follower block 391 is threadedly connected to the first driving screw rod 37, the rotation of the first driving screw rod 37 will drive the adjustment follower block 391 and the first support seat 11 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 synchronously. The first rack 21 moves in a step-by-step manner. The driving gear 75 rotates during the movement of the first rack 21. The driving gear 75 rotates during the rotation of the second rack 22. The second rack 22 moves during the movement of the second support seat 12. The first support seat 11 and the second support seat 12 move during the movement. The first clamping assembly 4 is driven to move synchronously, thereby facilitating 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 slides along the length direction of the mounting shaft 32, thereby driving the pushing ring 34 to move in the direction close to the rotating ring 33. During the movement of the pushing ring 34, the second return spring 341 is compressed and the telescopic rod 342 is pressed. When the locking lever 31 is in the state of being contracted, the end of the pushing ring 34 close to the rotating assembly 6 presses the top of the locking rod 31, so that the locking rod 31 slides in the vertical direction, and then the adjustment driving block 314 at the bottom of the locking rod 31 presses and pushes the adjustment follower block 391, so that the adjustment follower block 391 moves along the length direction of the adjustment slide groove 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, and at the same time, the insertion rod 315 is 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 the processing; When it is necessary to contact the restriction on the valve body, the locking bolt 313 is loosened, and the locking bolt 313 and the adjustment seat 312 are slid vertically as a whole, so that the insertion rod 315 moves away from the positioning hole 316. At the same time, the adjustment drive block 314 will also move vertically. 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 and the driving gear 351 are engaged. The staff can then drive the first support seat 11 and the second support seat 12 to move away from each other by turning the handwheel in the opposite direction, thereby contacting the restriction on the valve body. When it is necessary to use the locking rod 31 again, the adjustment seat 312 is restored to its original position and then fixed with the locking bolt 313.

[0045] like Figures 1 to 8As shown, the expansion assembly 7 includes a support plate 71, which is fixedly mounted on the first clamping cylinder 511 through a support shaft, and a plurality of sliding grooves 72 are evenly opened on the support plate 71 along its own circumference, and a slider 73 is slidably installed in the sliding groove 72, and an arc block 731 is fixedly installed at one end of the slider 73, and a toggle rod 732 is fixedly installed on the slider 73, and an expansion gear 711 is coaxially rotatably installed on the support plate 71, and a plurality of arc grooves 74 are coaxially evenly opened on the expansion gear 711, and a plurality of toggle rods 732 correspond to the plurality of arc grooves 74 one by one, and the toggle rod 732 is slidably installed in the arc groove 74, and a driving gear 75 is rotatably installed on the support plate 71, and the driving gear 75 meshes with the expansion gear 711. A driving motor 76 is also fixedly installed on the support plate 71, and the driving motor 76 is coaxially connected to the driving gear 75. An identical extension component 7 is installed on the second clamping cylinder 521, and corresponds to the extension 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 drive motor 76 is started, and the drive motor 76 will drive the drive gear 75 to rotate synchronously during rotation, and the drive gear 75 will drive the expansion gear 711 to rotate synchronously during rotation, and the expansion gear 711 will drive the toggle rod 732 to slide along the length direction of the arc groove 74, thereby driving the slider 73 to move along the length direction of the slide groove 72, and the slider 73 will drive the arc block 731 to move in the direction away from the support plate 71 during movement, and multiple arc blocks 731 all move in the direction away from the support plate 71, thereby increasing the contact area between the valve body and better clamping the valve body.

[0046] like Figures 1 to 8 When the locking cam 772 is in the unlocking state, the locking cam 773 is in the unlocking state, and the locking cam 773 is in the unlocking state, so that the first and second locking cams 773 are locked.

[0047] like Figures 1 to 8As shown, the linkage assembly 9 includes a gear ring 91, a rotating seat 92 is coaxially 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, and a mounting block 93 is fixedly installed on the bottom of the second support seat 12. The drive shaft 62 is slidably passed through the mounting block 93, and a first linkage bevel gear 931 is rotatably installed on the mounting block 93. A limit key block 932 is coaxially fixedly installed on the drive shaft 62 along its own length direction, and a limit key groove 933 is provided on the first linkage bevel gear 931. The limit key block 932 is slidably installed in the limit key groove 933, and a linkage shaft 934 is rotatably installed on the mounting block 93. A second linkage bevel gear 935 is coaxially mounted on the bottom of the shaft 934, and the second linkage bevel gear 935 meshes with the first linkage bevel gear 931. A third linkage bevel gear 936 is coaxially mounted on the top of the linkage shaft 934, and a fourth linkage bevel gear 911 is coaxially mounted on the gear ring 91, and 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 to the outside of the rotating seat 92, and a first adjusting sleeve 94 is coaxially slidably mounted on the worm 44, and a first adjusting limit block is coaxially fixedly mounted on the worm 44. A first adjusting slot 39 is coaxially opened on the first adjusting sleeve 94, and the first adjusting limit block is slidably mounted in the first adjusting slot 39. A first adjusting rod 941 is slidably penetrated on the rotating seat 92. The outer wall of the first adjusting sleeve 94 is rotatably mounted on the first adjusting rod 941, and a first linkage gear 942 is coaxially mounted on the first adjusting sleeve 94, and the first linkage gear 942 is meshed with the gear ring 91. A first push-pull electromagnet 943 is mounted on the end of the rotating seat 92 away from the gear ring 91, and the push-pull rod of the first push-pull electromagnet 943 is connected to the first adjusting rod 941. A first electrode sheet 944 is fixedly mounted on the auxiliary abutment block 422, and a first electrode socket 945 is mounted on the first clamping block 42. The first electrode sheet 944 and the first electrode socket 945 are both electrically connected to the first push-pull electromagnet 943. A second driving screw rod 95 is rotatably mounted on the rotating seat 92, and one end of the second driving screw rod 95 is threadedly connected to the mounting ring 54 and the other end is coaxially mounted on the rotating seat 92. The shaft is slidably installed with a second adjusting sleeve 951, and a second adjusting limit block is coaxially arranged on the second driving screw 95. A second adjusting slot 39 is opened on the second adjusting sleeve 951, and the second adjusting slider 73 is slidably installed in the second adjusting slot 39. A second adjusting rod 952 is slidably penetrated on the rotating seat 92, and the outer wall of the second adjusting sleeve 951 is rotatably installed on the second adjusting rod 952. A second linkage gear 953 is coaxially installed on the second adjusting sleeve 951, and the second linkage gear 953 is meshed with the gear ring 91. A second push-pull electromagnet 954 is fixedly installed on the end of the rotating seat 92 away from the gear ring 91. The push-pull rod of the second push-pull electromagnet 954 is connected to the second adjusting rod 952, and a second electrode sheet 955 is installed on the abutment block 771.A second electrode insertion hole 956 is installed on the bottom wall of the installation hole 77. The second electrode sheet 955 and the second electrode insertion hole 956 are both electrically connected to the second push-pull electromagnet 954.

[0048] When in use, the staff rotates the driving hand wheel 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 95 will be driven respectively. 3 rotates, and the first linkage gear 942 will drive the worm 44 to rotate during the rotation of the first linkage gear 942. During the rotation of the worm 44, the other first clamping component 4 will be driven to move synchronously through the synchronization component 8, thereby clamping the valve body. When the auxiliary abutment block 422 presses and abuts the valve body, the auxiliary abutment block 422 will drive the first electrode sheet 944 to contact the first electrode socket 945, thereby energizing the first push-pull electromagnet 943. After energization, the push rod of the first push-pull electromagnet 943 will extend, and the extended push rod will push the first adjustment rod 941 to move, thereby pushing the first linkage gear 942 to move in the direction away from the gear ring 91, thereby stopping the first linkage gear 942 from rotating. During the rotation of the second linkage gear 953, it will drive The second driving screw rod 95 rotates. Since the second driving screw rod 95 is threadedly connected to the mounting ring 54, the second driving screw rod 95 will drive the mounting ring 54 to slide along the length direction of the rotating shaft 53, thereby driving the first clamping rod 51 and the second clamping rod 52 to move in a direction close to each other, thereby clamping and fixing the valve body. When the abutment block 771 contacts the valve body, the abutment block 771 will move in a direction close to the mounting hole 77, and the second electrode piece 955 at the bottom of the abutment block 771 contacts the second electrode socket 956, thereby energizing the second push-pull electromagnet 954. After being energized, the second push-pull electromagnet 954 will drive its own push rod to extend, and the extended push rod will drive the second adjustment rod 952 to move. The second adjustment rod 952 moves. During the process, the second linkage gear 953 will be driven to move synchronously, so that the second linkage gear 953 will move toward a position away from the gear ring 91, so that the second linkage gear 953 will stop rotating, and the current position of the second clamping assembly 5 will be fixed; when the valve body processing is completed and the clamping of the valve body needs to be released, the staff will cut off the power to 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 will re-engage with the gear ring 91 respectively, and then the staff will hold the driving hand wheel 352 and rotate it in the opposite direction, so that the power shaft 35 will rotate in the opposite direction, so that the gear ring 91 will rotate in the opposite direction, and then the first clamping assembly 4 and the second clamping assembly 5 will release the clamping of the valve body.

[0049] like Figures 1 to 8 As shown, the rotating assembly 6 includes a mounting frame 61, which is fixedly mounted on the first support seat 11, and a driving shaft 62 is rotatably mounted on the mounting frame 61, and a rotating handwheel 63 is coaxially mounted on the driving shaft 62, and the other end of the driving shaft 62 is coaxially connected to the mounting shaft 32, and a limiting disk 64 is coaxially mounted on the driving shaft 62, and a plurality of positioning grooves 641 are coaxially provided on the limiting disk 64 along its own circumference, and a limiting rod 65 is rotatably mounted on the mounting frame 61, and one end of the limiting rod 65 is inserted into the positioning groove 641, and the other end of the limiting rod 65 is mounted with a fourth return spring 66, and the other end of the fourth return spring 66 is connected to the mounting frame 61; when in use, the staff presses one end of the limiting rod 65 to rotate the limiting rod 65 , the fourth return spring 66 is compressed, and the other end of the limit rod 65 moves in the direction away from the positioning groove 641, thereby releasing the restriction on the drive shaft 62, and then the staff drives the rotary handwheel 63 to rotate. The rotation of the rotary handwheel 63 will drive the drive shaft 62 to rotate synchronously. The rotation of the drive shaft 62 will drive the first mounting seat 13 to rotate synchronously, thereby driving the valve body to move synchronously, and then adjust the rotation angle of the valve body to facilitate the staff to process the valve body; when it is necessary to fix the valve body after the rotation angle is adjusted, the staff loosens the limit rod 65, and under the action of the fourth return spring 66, one end of the limit rod 65 will be inserted into the positioning groove 641, thereby limiting the rotation of the drive shaft 62.

[0050] The implementation principle of this embodiment is: when in use, according to the size of the current valve body, the contact area between the valve body and the expansion component 7 is increased by adjusting the expansion component 7 to adapt to valve bodies of different sizes, and then the valve body is placed on the expansion component 7, and then the driving component 2 drives the first support seat 11 and the second support seat 12 to move in the direction of approaching each other, thereby driving the first mounting seat 13 and the second mounting seat 14 to move synchronously, and under the action of the linkage component 9, the first clamping component 4 and the second clamping component 5 will be driven to move synchronously, and the first clamping component 4 and the second clamping component 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 component 4 and the second clamping component 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 processing.

[0051] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make many possible changes and modifications to the technical solution of the present invention using the above technical content, or modify it into an equivalent embodiment with equivalent changes. Therefore, any 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 are within the scope of protection of the present technical solution.

Claims

1. A valve body clamping tool, characterized by: The invention comprises a base (1), wherein a first support seat (11) and a second support seat (12) are slidably provided on the base (1), a driving component (2) for driving the first support seat (11) and the second support seat (12) to move toward each other is provided on the base (1), a locking component (3) is provided on the first support seat (11), a first mounting seat (13) is rotatably provided on the first support seat (11), a second mounting seat (14) is rotatably provided on the second support seat (12), a first clamping component (4) is provided on the first mounting seat (13) and the second mounting seat (14), a second clamping component (5) is further provided on the second mounting seat (14), and a first support seat (11) is provided. A rotating assembly (6) for driving the first mounting seat (13) to rotate is provided, an expansion assembly (7) for increasing the contact area between the second clamping assembly (5) and the valve body is provided on the second mounting seat (14), a synchronization assembly (8) for synchronously clamping the two first clamping assemblies (4) is provided on the second supporting seat (12), and a linkage assembly (9) for linking the driving assembly (2) with the second clamping assembly (5) and the synchronization assembly (8) is provided on the second supporting seat (12); 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 provided on the first mounting seat (13), and a worm (44) is rotatably provided on the clamping seat (41). A first worm gear (421) is fixedly provided at one end of the first clamping block (42), and the first worm gear (421) is rotatably provided on one side of the clamping seat (41). A second worm gear (431) is fixedly provided at one end of the second clamping block (43), and the second worm gear (431) is rotatably provided 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 abutment blocks (422) are evenly provided on the first clamping block (42) along its length direction. The auxiliary abutment blocks (422) are slidably connected to the first clamping block (42). An auxiliary spring (423) is provided on the auxiliary abutment block (422). The auxiliary spring (423) The other end is connected to the first clamping block (42); 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 on one end of the second mounting seat (14), and the second clamping rod (52) is slidably arranged on the other end of the second mounting seat (14), a first clamping cylinder (511) is slidably arranged on the first clamping rod (51), and the end of the first clamping cylinder (511) away from the first clamping rod (51) is slidably arranged on the first mounting seat (13), and a second clamping cylinder (521) is slidably arranged on the second clamping rod (52), and the 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 supporting seat (12) via a rotating shaft (53), a mounting ring (54) is slidably arranged on the rotating shaft (53), a first connecting rod (541) and a second connecting rod (542) are hingedly arranged on the mounting ring (54), the other end of the first connecting rod (541) is hingedly connected to the first clamping rod (51), and the second connecting rod (542) is hingedly connected to the second clamping rod (52); 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) in a one-to-one manner, the first bevel gears (81) are coaxially arranged on the worm gear (44), the two first rotating shafts (82) correspond to the two clamping rods (52), and the first bevel gears (81) are coaxially arranged on the worm gear (44). The first rotating shaft (82) is rotatably arranged on the clamping seat (41) along the vertical direction, a second bevel gear (821) is coaxially arranged on one end of the first rotating shaft (82), and the second bevel gear (821) is meshed 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 provided on the first rotating shaft (82), a first limiting groove (824) is opened on the first shaft cylinder (823) along its own 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), and the first clamping rod (51) is provided with a first bevel gear (825). A second rotating shaft (83) is rotatably provided, a second shaft cylinder (84) is rotatably provided on the first clamping cylinder (511), the second shaft cylinder (84) is slidably provided on the second rotating shaft (83), a second limiting block (831) is provided on the second rotating shaft (83), a second limiting groove (841) is provided on the second shaft cylinder (84) along its length direction, the second limiting block (831) is slidably provided in the second limiting groove (841), a fourth bevel gear (85) is coaxially provided on the second rotating shaft (83) and the second shaft cylinder (84), the fourth bevel gear (85) is meshed with the third bevel gear (825); the driving assembly (2) includes a first rack (21) and a second rack (22), the The first rack (21) is fixedly arranged at the bottom of the first support seat (11), and the second rack (22) is fixedly arranged at the bottom of the second support seat (12). The first rack (21) and the second rack (22) are both slidably arranged in the driving groove (23), and 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 the two sides of the driving gear (75); the locking assembly (3) includes a locking rod (31), and the locking rod (31) is slidably arranged on the first support seat (11). A first return spring (311) is provided on the first support seat (11), and the other end of the first return spring (311) is connected to the locking rod (31).The first mounting seat (13) is rotatably arranged on the first support seat (11) through the mounting shaft (32), and a rotating ring (33) is rotatably arranged on the first support seat (11), and the rotating ring (33) is coaxially arranged with the mounting shaft (32), and a pushing ring (34) is coaxially arranged on the mounting shaft (32), and the pushing ring (34) is slidably connected to the rotating ring (33), and a plurality of second return springs (341) are evenly arranged on the pushing ring (34) along its own circumference, and the other end of the second return spring (341) is connected to the rotating ring (33), and a plurality of telescopic rods (342) are evenly arranged on the pushing ring (34) along its own circumference, and the other end of the telescopic rod (342) is fixed to the rotating ring (33). The base (1) is fixedly connected, a driving shaft (62) is rotatably provided on the base (1), a driving gear (351) is coaxially provided on the driving shaft (62), a driving hand wheel (352) is coaxially provided on one end of the driving shaft (62), a moving groove (36) is provided at one end of the base (1), a moving block (361) is slidably provided in the moving groove (36), a first driving screw rod (37) is rotatably provided on the moving block (361), a driven gear (371) is coaxially fixedly provided at one end of the first driving screw rod (37), the driven gear (371) is meshed with the driving gear (351), a third return spring (38) is provided in the moving groove (36), the other end of the third return spring (38) is fixed to the moving block ( 361), the bottom of the first support seat (11) is provided with an adjustment slot (39), an adjustment follower block (391) is slidably provided in the adjustment slot (39), the adjustment follower block (391) is threadedly connected to the first driving screw (37), the bottom sliding sleeve of the locking rod (31) is provided with an adjustment seat (312), the adjustment seat (312) is provided with a locking bolt (313) for fixing itself, the bottom of the adjustment seat (312) is provided with an adjustment drive block (314), the adjustment drive block (314) is slidably connected to the adjustment follower block (391), the bottom of the adjustment seat (312) is also provided with an insertion rod (315), and a plurality of drive slots (23) are provided along the length direction of the drive slot (23). Positioning hole (316), the insertion rod (315) is inserted into the positioning hole (316); 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 evenly opened on the support plate (71) along its own circumference, a slider (73) is slidingly arranged in the sliding groove (72), an arc block (731) is fixedly arranged at one end of the slider (73), 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 grooves (74) are coaxially opened on the expansion gear (711), and the toggle rod (732) is slidingly arranged in the arc groove (74),A driving gear (75) is rotatably provided on the support plate (71), and the driving gear (75) is meshed with the expansion gear (711). A driving motor (76) is provided on the support plate (71), and the driving motor (76) is coaxially connected to the driving gear (75); a mounting hole (77) is provided on the arc block (731), and an abutment block (771) is slidably provided in the mounting hole (77), and a fifth return spring (772) is provided at the bottom of the abutment block (771), and the other end of the fifth return spring (772) is connected to the bottom wall of the mounting hole (77); the linkage assembly (9) includes a gear ring (91), and a rotating seat (92) is coaxially provided on the upper side of the rotating shaft (53), and 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), a mounting block (93) is fixedly arranged at the bottom of the second support seat (12), the driving shaft (62) is slidably passed through the mounting block (93), a first linkage bevel gear (931) is rotatably arranged on the mounting block (93), a limiting key block (932) is coaxially fixedly arranged on the driving shaft (62) along its own length direction, a limiting key slot (933) is provided on the first linkage bevel gear (931), the limiting key block (932) is slidably arranged in the limiting key slot (933), the mounting block (93) A linkage shaft (934) is provided on the top of the linkage shaft (934) for rotation in the vertical direction. A second linkage bevel gear (935) is coaxially provided on 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 provided on the top of the linkage shaft (934). A fourth linkage bevel gear (911) is coaxially provided 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 to the outside of the rotating seat (92). A first adjustment sleeve (94) is coaxially provided on the worm (44) for sliding. The worm (44) is coaxially fixed. A first adjustment limit block is provided, a first adjustment slot (39) is provided on the first adjustment sleeve (94), the first adjustment limit block is slidably provided in the first adjustment slot (39), a first adjustment rod (941) is slidably passed through the rotating seat (92), the outer wall of the first adjustment sleeve (94) is rotatably provided on the first adjustment rod (941), a first linkage gear (942) is coaxially provided on the first adjustment sleeve (94), the first linkage gear (942) is meshed with the gear ring (91), a first push-pull electromagnet (943) is provided on one end of the rotating seat (92) away from the gear ring (91), and the push-pull rod of the first push-pull electromagnet (943) is connected to the first adjustment rod (941),The auxiliary abutment block (422) is provided with a first electrode sheet (944), the first clamping block (42) is provided with a first electrode socket (945), the first electrode sheet (944) and the first electrode socket (945) are both electrically connected to the first push-pull electromagnet (943), the rotating seat (92) is provided with a second driving screw (95) for rotation, one end of the second driving screw (95) is threadedly connected to the mounting ring (54), and the other end is provided with a second adjustment sleeve (951) for coaxial sliding, the second driving screw (95) is coaxially provided with a second adjustment limit block, the second adjustment sleeve (951) is provided with a second adjustment slot (39), the second adjustment limit block is slidably provided in the second adjustment slot (39), and the rotating seat (92) is provided with a second adjustment slot (39). A second adjustment rod (952) is provided, the outer wall of the second adjustment sleeve (951) is rotatably provided on the second adjustment rod (952), a second linkage gear (953) is coaxially provided on the second adjustment sleeve (951), the second linkage gear (953) is meshed with the gear ring (91), a second push-pull electromagnet (954) is provided on the end of the rotating seat (92) away from the gear ring (91), the push-pull rod of the second push-pull electromagnet (954) is connected to the second adjustment rod (952), a second electrode sheet (955) is provided on the abutment block (771), a second electrode socket (956) is provided on the bottom wall of the mounting hole (77), and the second electrode sheet (955) and the second electrode socket (956) are both electrically connected to the second push-pull electromagnet (954).

2. A valve body clamping tool according to claim 1, characterized in that: The rotating assembly (6) includes a mounting frame (61), the mounting frame (61) is fixedly arranged on the first support seat (11), a driving shaft (62) is rotatably arranged on the mounting frame (61), a rotating hand wheel (63) is coaxially arranged on the driving shaft (62), the other end of the driving shaft (62) is coaxially connected to the mounting shaft (32), a limiting disk (64) is coaxially arranged on the driving shaft (62), a plurality of positioning grooves (641) are coaxially opened on the limiting disk (64), a limiting rod (65) is rotatably arranged on the mounting frame (61), one end of the limiting rod (65) is inserted into the positioning groove (641), the other end of the limiting rod (65) is provided with a fourth return spring (66), and the other end of the fourth return spring (66) is connected to the mounting frame (61).

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