Machine tool special for valve body machining

Abstract

The invention relates to the technical field of machine tools, in particular to a machine tool special for valve body machining, which comprises a machine tool main body and a fixing assembly, the fixing assembly is mounted on a slide carriage of a slide carriage box of the machine tool main body, and the fixing assembly comprises a base, a rack rotationally mounted on the base and a clamping assembly mounted on the rack; the base is fixedly connected with a slide carriage box of a machine tool main body, the clamping assembly comprises a plurality of clamping parts with adjustable positions, the plurality of clamping parts can synchronously act and can be independently adjusted, and meanwhile, the clamping parts can clamp a flange cylindrical surface on a valve body to fix the valve body. In the whole using process, the flange cylindrical surfaces basically provided by the valve bodies are clamped and fixed at the same time, so that the valve bodies of various different sizes and types can be fixed, an independent clamp does not need to be customized for each valve body, the machining cost is effectively reduced, the clamp does not need to be frequently replaced, and the machining efficiency is improved. And the processing efficiency can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of machine tools, and in particular to a special machine tool for valve body processing. Background Art

[0002] The valve body is an important component in the valve. Its main function is to serve as the outer shell of the valve, accommodate and support internal parts such as the valve core, valve stem, seals, etc., and connect with the pipeline to control the flow of fluid.

[0003] During the valve body processing, a special valve body processing machine tool is needed to finish the flange surface on the valve body to ensure the sealing and docking of the flange connection after the valve body is installed.

[0004] At present, the difference between conventional special valve body processing machine tools and ordinary machine tools is that they have tooling or fixtures specifically used for valve body fixation, which can be well attached to the valve body surface to ensure the fixation effect, thereby ensuring the processing accuracy.

[0005] However, the above-mentioned valve body special processing machine tool still has certain defects, namely:

[0006] Each valve body has a different shape and size. For valve bodies of different types and sizes, corresponding fixtures need to be made, which will undoubtedly greatly increase the cost. In addition, when replacing different valve bodies for processing, the corresponding fixtures need to be replaced, which will greatly reduce the processing efficiency. Summary of the invention

[0007] In order to overcome the deficiencies of the prior art, the present invention provides a special machine tool for valve body machining.

[0008] In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: a special machine tool for valve body processing, comprising a machine tool main body and a fixing assembly, the fixing assembly being installed on a slide of a slide box of the machine tool main body, the fixing assembly comprising a base, a frame rotatably mounted on the base, and a clamping assembly mounted on the frame, the base being fixedly connected to the slide box of the machine tool main body, the clamping assembly comprising a plurality of clamping parts with adjustable positions, and the plurality of clamping parts can act synchronously or be adjusted individually, and at the same time, the clamping part can clamp the flange cylindrical surface on the valve body to fix the valve body.

[0009] As a preferred technical solution of the present invention, the base includes a fixed seat body, a rotating seat body, a connecting shaft, a limit plate and a locking bolt. The fixed seat body is fixed to the slide on the machine tool body, the connecting shaft is rotatably installed in the middle of the fixed seat body, the rotating seat body is arranged above the fixed seat body and is fixedly connected to the top of the connecting shaft, the frame is fixedly installed on the rotating seat body, a groove is provided on the bottom surface of the fixed seat body, the limit plate is rotatably installed in the groove, and the rotating shaft of the limit plate is coaxially connected with the connecting shaft, a threaded hole is provided on the surface of the rotating seat body, the locking bolt is threadedly installed in the threaded hole, and the fixed seat body and the rotating seat body can be tightened after the locking bolt is tightened.

[0010] As a preferred technical solution of the present invention, the clamping part includes a control seat and a clamping block, which is slidably installed on the side of the control seat. The control seat and the clamping block each have two groups, and are distributed in upper and lower positions. A first adjustment component is connected between the clamping block and the control seat, and the sliding distance of the clamping block is controlled by the first adjustment component.

[0011] As a preferred technical solution of the present invention, the first adjustment component includes a first guide rod and a first screw rod. The first guide rod is slidably inserted in the side of the control seat, and the end of the first guide rod away from the control seat is fixedly connected to the side of the clamping block. One end of the first screw rod is threadedly inserted in the side of the control seat, and the other end is rotatably connected to the clamping block.

[0012] As a preferred technical solution of the present invention, the clamping block includes a fixed block, a movable block and a second adjusting component. The fixed block is connected to the first guide rod and the first screw at the same time. The movable block is slidably installed on the side of the fixed block. The side of the movable block is detachably fixed with clamping jaws by screws. There are two groups of clamping jaws, and the two groups of clamping jaws are arranged in a V shape away from the end of the movable block. At the same time, the two groups of clamping jaws are located between two control seats. The second adjusting component is connected between the fixed block and the movable block, and the sliding distance of the movable block is controlled by the second adjusting component.

[0013] As a preferred technical solution of the present invention, the second adjustment component includes a second guide rod, a second screw and a threaded sleeve. The second guide rod is slidably inserted on the surface of the fixed block, the end of the second guide rod away from the fixed block is fixedly connected to the movable block, the threaded sleeve is rotatably installed in the middle of the fixed block, the second screw is threadedly inserted in the middle of the threaded sleeve, and one end of the second screw is fixedly connected to the movable block, the end of the threaded sleeve away from the fixed block is fixedly installed with a first nut, and the middle of the first screw is fixedly installed with a second nut.

[0014] As a preferred technical solution of the present invention, a synchronization component is connected between two threaded sleeves located in the upper and lower positions, and the synchronization component includes a transmission sleeve, a telescopic shaft, a synchronization seat, a first gear and a second gear. A cavity is provided in the middle of the fixed block, the first gear is installed in the cavity, and the first gear is fixedly sleeved on the surface of the threaded sleeve. There are two telescopic shafts, which are slidably inserted at both ends of the transmission sleeve respectively, and the transmission sleeve can drive the telescopic shaft to rotate synchronously. The second gear is rotatably installed in the middle of the synchronization seat, and the rotating shaft of the second gear is coaxially connected to the telescopic shaft. At the same time, when the synchronization seat is aligned and fit with the side of the fixed block, the first gear can mesh with the second gear.

[0015] As a preferred technical solution of the present invention, a positioning hole is opened on the side of the fixed block, and a positioning pin that can be inserted into the positioning hole is fixedly installed on the side of the synchronous seat. After the positioning pin is inserted into the positioning hole, the tooth grooves of the first gear and the second gear are aligned.

[0016] As a preferred technical solution of the present invention, a limit assembly is provided in the fixed block, and the limit assembly includes a card block, a connecting rod, a slider and a return spring. A limit cavity is provided inside the fixed block, and the card block is slidably arranged in the limit cavity. A card tooth is provided in the middle of the card block, and the card tooth can be engaged with the first gear. At the same time, the first gear can be limited after the card tooth is engaged with the first gear. The return spring is installed between the card block and the inner wall of the limit cavity, and the card block makes the card tooth engage with the first gear under the action of the return spring. The connecting rod and the slider are both slidably installed in the limit cavity, and one end of the connecting rod is fixedly connected to the slider, and the other end is fixedly connected to the card block. At the same time, the sliding of the slider can drive the card block to slide through the connecting rod to separate the card tooth from the first gear. The position of the slider corresponds to the positioning hole, and after the positioning pin is inserted into the positioning hole, the slider can be pushed to slide.

[0017] As a preferred technical solution of the present invention, the clamping assembly also includes a driving assembly, which includes a double-headed screw, a guide column, a handwheel and a driving seat. The frame is in an "L" shape, and the long side end of the frame is fixed to the surface of the rotating seat body, one end of the double-headed screw is rotatably connected to the short side of the frame, and the other end is rotatably connected to the surface of the rotating seat body, the guide column is fixedly connected between the short side of the frame and the rotating seat body, the handwheel is rotatably installed on the top surface of the frame, and the rotating shaft of the handwheel is coaxially connected to the rotating shaft of the double-headed screw, there are two driving seats, the two driving seats are respectively connected to the double-headed screw with left-handed threads and right-handed threads, and the driving seat is slidably sleeved on the surface of the guide column, and the two driving seats are respectively fixedly connected to the control seats in the upper and lower directions, the two driving seats are symmetrically arranged at both ends of the double-headed screw, and the two driving seats are both slidably sleeved on the surface of the guide column.

[0018] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0019] 1. During the entire use process, the flange cylindrical surface of the valve body is basically clamped and fixed at the same time by the clamping assembly in the fixing assembly and multiple synchronously acting clamping parts in the clamping assembly. In this way, it can meet the needs of fixing valve bodies of various sizes and types, so there is no need to customize a separate clamp for each valve body, effectively reducing the processing cost, and there is no need to frequently replace the clamp, which can effectively improve the processing efficiency.

[0020] 2. During use, the clamping block in the clamping part can freely adjust the distance between it and the control seat. In this way, valve bodies with different center distances between various flanges and valve bodies can be fixed, further improving the applicability of the entire machine tool.

[0021] 3. The movable block of the clamp can also be flexibly adjusted with the fixed block according to the use requirements. In this way, various valve bodies with inconsistent flange centers and valve body centers can be fixed, which further improves the applicability of the entire machine tool. In addition, during use, the position of the movable block can be adjusted to selectively control the loosening of one or more flanges, thereby meeting more processing requirements and being very flexible to use.

[0022] 4. During use, the upper and lower movable blocks can also be adjusted simultaneously through the synchronization components. In this way, the center between the two movable blocks can be effectively guaranteed to remain unchanged, thereby ensuring the processing quality. At the same time, there is no need for workers to frequently adjust the center, which is conducive to improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0025] Figure 3 For the present invention Figure 2 The enlarged structural diagram at B in the middle;

[0026] Figure 4 This is a schematic diagram of the cross-section structure of the fixing assembly of the present invention;

[0027] Figure 5 For the present invention Figure 4 The enlarged structural diagram at C in the middle;

[0028] Figure 6 For the present invention Figure 4 The enlarged structural diagram at D in the middle;

[0029] Figure 7 It is a schematic diagram of the internal structure of the fixing block of the present invention.

[0030] Wherein: 1. Machine tool body; 2. Base; 201. Fixed seat body; 202. Rotating seat body; 203. Connecting shaft; 204. Limiting plate; 205. Locking bolt; 3. Frame; 4. Control seat; 5. Clamping block; 501. Fixed block; 502. Movable block; 503. Clamping claw; 6. First guide rod; 7. First screw rod; 8. Second guide rod; 9. Second screw rod; 10. Threaded sleeve; 11. First nut; 12. Second nut; 13. Transmission sleeve; 14. Telescopic shaft; 15. Synchronous seat; 16. First gear; 17. Second gear; 18. Positioning hole; 19. Positioning pin; 20. Block; 21. Connecting rod; 22. Sliding block; 23. Reset spring; 24. Clamping tooth; 25. Double-headed screw rod; 26. Guide column; 27. Hand wheel; 28. Drive seat. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0032] Embodiment: Figure 1-7 As shown, a special machine tool for valve body processing includes a machine tool body 1 and a fixing component, the fixing component is installed on the slide of the slide box of the machine tool body 1, the fixing component includes a base 2, a frame 3 rotatably installed on the base 2 and a clamping component installed on the frame 3, the base 2 is fixedly connected to the slide box of the machine tool body 1, the clamping assembly includes a plurality of clamping parts with adjustable positions, and the plurality of clamping parts can act synchronously and can also be adjusted individually, and at the same time, the clamping part can clamp the flange cylindrical surface on the valve body to fix the valve body.

[0033] When in use, it is only necessary to simultaneously clamp and fix the flange cylindrical surface that basically all valve bodies have through the clamping assembly in the fixing assembly and multiple synchronously acting clamping parts in the clamping assembly. In this way, it is possible to fix valve bodies of various sizes and types.

[0034] The base 2 includes a fixed seat body 201, a rotating seat body 202, a connecting shaft 203, a limit plate 204 and a locking bolt 205. The fixed seat body 201 is fixed to the slide on the machine tool body 1, and the connecting shaft 203 is rotatably installed in the middle of the fixed seat body 201. The rotating seat body 202 is arranged above the fixed seat body 201 and is fixedly connected to the top of the connecting shaft 203. The frame 3 is fixedly installed on the rotating seat body 202. A groove is provided on the bottom surface of the fixed seat body 201. The limit plate 204 is rotatably installed in the groove, and the rotating shaft of the limit plate 204 is coaxially connected with the connecting shaft 203. A threaded hole is provided on the surface of the rotating seat body 202. The locking bolt 205 is threadedly installed in the threaded hole, and the locking bolt 205 can tighten the fixed seat body 201 and the rotating seat body 202 after being tightened.

[0035] In this way, the locking bolt 205 can be loosened, and the rotating seat body 202 and the fixed seat body 201 are no longer limited. In this way, the flanges in other positions of the valve body can be aligned with the turning tool by simply rotating the rotating seat body 202, thereby eliminating the need for frequent assembly and disassembly to adjust the processing position.

[0036] The clamping part includes a control seat 4 and a clamping block 5. The clamping block 5 is slidably installed on the side of the control seat 4. There are two groups of the control seat 4 and the clamping block 5, which are distributed in the upper and lower positions. A first adjustment component is connected between the clamping block 5 and the control seat 4, and the sliding distance of the clamping block 5 is controlled by the first adjustment component.

[0037] In this way, the distance between the clamp block 5 and the control seat 4 can be freely adjusted through the first adjustment component. In this way, valve bodies with different flange-to-valve body center distances can be fixed, further improving the applicability of the entire machine tool.

[0038] The first adjustment assembly includes a first guide rod 6 and a first screw rod 7. The first guide rod 6 is slidably inserted in the side of the control seat 4, and the end of the first guide rod 6 away from the control seat 4 is fixedly connected to the side of the clamping block 5. One end of the first screw rod 7 is threadedly inserted in the side of the control seat 4, and the other end is rotatably connected to the clamping block 5.

[0039] In this way, the clamping block 5 can be driven to approach or move away from the control seat 4 by simply rotating the first screw rod 7 , thereby satisfying various valve body processing requirements.

[0040] The clamping block 5 includes a fixed block 501, a movable block 502 and a second adjusting component. The fixed block 501 is connected to the first guide rod 6 and the first screw 7 at the same time. The movable block 502 is slidably installed on the side of the fixed block 501. In this way, the rotation of the first screw 7 will drive the fixed block 501 and the movable block 502 away from or close to the control seat 4.

[0041] The side of the movable block 502 is detachably fixed with a clamp 503 by means of screws. There are two groups of clamps 503, and the two groups of clamps 503 are arranged in a V shape away from the end of the movable block 502. In this way, the cylindrical surface of the flange can be better limited. At the same time, the two groups of clamps 503 are located between the two control seats 4. In this way, the clamping operation can be performed by simply placing the valve body between the two clamps 503. The second adjusting component is connected between the fixed block 501 and the movable block 502, and the sliding distance of the movable block 502 is controlled by the second adjusting component. In this way, the center position between the two clamps 503 can be adjusted.

[0042] The second adjustment assembly includes a second guide rod 8, a second screw rod 9 and a threaded sleeve 10. The second guide rod 8 is slidably inserted on the surface of the fixed block 501. The end of the second guide rod 8 away from the fixed block 501 is fixedly connected to the movable block 502. The threaded sleeve 10 is rotatably installed in the middle of the fixed block 501. The second screw rod 9 is threadedly inserted in the middle of the threaded sleeve 10, and one end of the second screw rod 9 is fixedly connected to the movable block 502. The end of the threaded sleeve 10 away from the fixed block 501 is fixedly installed with a first nut 11, and the middle of the first screw rod 7 is fixedly installed with a second nut 12.

[0043] In this way, the threaded sleeve 10 only needs to rotate, and the threaded sleeve 10 will drive the second screw 9 to slide out from the end of the threaded sleeve 10, thereby driving the movable block 502 and the clamping jaw 503 to move, so that the center adjustment of the two clamping jaws 503 at the corresponding positions can be achieved.

[0044] A synchronization component is connected between the two threaded sleeves 10 located in the upper and lower positions, and the synchronization component includes a transmission sleeve 13, a telescopic shaft 14, a synchronization seat 15, a first gear 16 and a second gear 17. A cavity is provided in the middle of the fixed block 501, and the first gear 16 is installed in the cavity, and the first gear 16 is fixedly sleeved on the surface of the threaded sleeve 10. There are two telescopic shafts 14, which are slidably inserted at both ends of the transmission sleeve 13 respectively. At the same time, the transmission sleeve 13 can drive the telescopic shaft 14 to rotate synchronously. The second gear 17 is rotatably installed in the middle of the synchronization seat 15, and the rotating shaft of the second gear 17 is coaxially connected with the telescopic shaft 14. At the same time, when the synchronization seat 15 is aligned and fitted with the side of the fixed block 501, the first gear 16 can mesh with the second gear 17.

[0045] A positioning hole 18 is formed on the side of the fixing block 501 , and a positioning pin 19 which can be inserted into the positioning hole 18 is fixedly installed on the side of the synchronization seat 15 . After the positioning pin 19 is inserted into the positioning hole 18 , the tooth grooves of the first gear 16 and the second gear 17 are aligned.

[0046] In this way, it is only necessary to press the synchronous seat 15 against the side of the fixed block 501 and insert the positioning pin 19 into the positioning hole 18. At this time, the first gear 16 will engage with the second gear 17. Then, it is only necessary to rotate the transmission sleeve 13 to drive the two telescopic shafts 14 to rotate synchronously at the same time. The two telescopic shafts 14 will drive the second gears 17 in the two synchronous seats 15 to rotate synchronously, and finally drive the first gears 16 in the upper and lower corresponding positions to rotate synchronously, thereby realizing the synchronous adjustment of the upper and lower jaws 503. In this way, the center of the two jaws 503 can be effectively guaranteed to remain unchanged, thereby ensuring the processing quality.

[0047] A limiting assembly is provided inside the fixed block 501, and the limiting assembly includes a clamping block 20, a connecting rod 21, a slider 22 and a reset spring 23. A limiting cavity is provided inside the fixed block 501, and the clamping block 20 is slidably arranged in the limiting cavity. A clamping tooth 24 is provided in the middle of the clamping block 20, and the clamping tooth 24 can mesh with the first gear 16. At the same time, the clamping tooth 24 can limit the first gear 16 after meshing with the first gear 16. The reset spring 23 is installed between the clamping block 20 and the inner wall of the limiting cavity, and the clamping block 2 Under the action of the return spring 23, the latching tooth 24 is meshed with the first gear 16. The connecting rod 21 and the slider 22 are both slidably installed in the limiting cavity, and one end of the connecting rod 21 is fixedly connected to the slider 22, and the other end is fixedly connected to the block 20. At the same time, the sliding of the slider 22 can drive the block 20 to slide through the connecting rod 21 to separate the latching tooth 24 from the first gear 16. The position of the slider 22 corresponds to the positioning hole 18, and after the positioning pin 19 is inserted into the positioning hole 18, the slider 22 can be pushed to slide.

[0048] In this way, it is necessary to insert the locating pins 19 of the two synchronous seats 15 into the locating holes 18 of the upper and lower azimuth fixing blocks 501 at the same time to push open the slider 22, and let the slider 22 drive the block 20 to slide through the connecting rod 21, so that the block 20 is separated from the first gear 16 before the first gear 16 can rotate. In this way, the first gear 16 can be effectively prevented from rotating on its own during use, resulting in center deviation, and at the same time, a single rotation of the transmission sleeve 13 can simultaneously drive the two upper and lower corresponding azimuth first gears 16 to rotate synchronously. If a single rotation of the first gear 16 is required, it is only necessary to insert the locating pin 19 of one synchronous seat 15 into the corresponding locating hole 18.

[0049] The clamping assembly also includes a driving assembly, which includes a double-headed screw 25, a guide column 26, a handwheel 27 and a driving seat 28. The frame 3 is "L"-shaped, and the long side end of the frame 3 is fixed to the surface of the rotating seat body 202. One end of the double-headed screw 25 is rotatably connected to the short side of the frame 3, and the other end is rotatably connected to the surface of the rotating seat body 202. The guide column 26 is fixedly connected between the short side of the frame 3 and the rotating seat body 202. The handwheel 27 is rotatably installed on the top surface of the frame 3, and the rotating shaft of the handwheel 27 is coaxially connected to the rotating shaft of the double-headed screw 25. There are two driving seats 28, and the two driving seats 28 are respectively connected to the double-headed screw 25 with left-handed threads and right-handed threads, and the driving seat 28 is slidably sleeved on the surface of the guide column 26. At the same time, the two driving seats 28 are respectively fixedly connected to the control seats 4 in the upper and lower directions. The two driving seats 28 are symmetrically arranged at both ends of the double-headed screw 25, and the two driving seats 28 are both slidably sleeved on the surface of the guide column 26.

[0050] In this way, it is only necessary to rotate the hand wheel 27 to drive the double-headed screw 25 to rotate, and the double-headed screw 25 will drive the two driving seats 28 to move to the two ends of the double-headed screw 25 respectively, thereby driving the control seats 4 in the upper and lower directions to move away from or closer to each other, thereby driving the clamping block 5 to clamp the valve body in the middle.

[0051] It should be noted that, except for the side close to the frame 3, the other side surfaces of the control seat 4 are provided with clamping blocks 5, so that multiple flanges of the valve body can be clamped at the same time, and the center of the double-headed screw 25 is aligned with the center of the chuck of the machine tool body 1. In this way, it can be ensured that after the flange of the valve body is clamped, the center of the flange is basically aligned with the center of the chuck, which is convenient for the subsequent tool alignment and further facilitates processing.

[0052] Therefore, the complete usage process is, first turn the hand wheel 27 to drive the double-headed screw 25 to rotate, the double-headed screw 25 will drive the two drive seats 28 to move toward the two ends of the double-headed screw 25 respectively, thereby driving the control seats 4 in the upper and lower directions to move away. At this time, the valve body to be processed is placed between the two control seats 4, and the second nut 12 is rotated at the same time to drive the first screw 7 to rotate. The first screw 7 will drive the fixed block 501 together with the movable block 502 to move away from or approach the control seat 4 until the clamping claw 503 on the movable block 502 is aligned with the flange on the valve body. At this time, reverse the hand wheel 27 to drive the two control seats 4 to approach each other until the clamping claws 503 in the upper and lower directions clamp the flange of the valve body. In this way, the valve body can be fixed, and then the corresponding processing turning tool is fixed to the chuck of the machine tool body 1, and the valve body can be processed by controlling the slide box of the machine tool body 1 to control the movement of the slide to make the valve body close to the turning tool.

[0053] Furthermore, during use, when a flange of the valve body needs to be switched after processing is completed, it is only necessary to loosen the locking bolt 205. At this time, the rotating seat body 202 loses its limit position with the fixed seat body 201. In this way, the flanges in other positions on the valve body can be aligned with the turning tool by simply rotating the rotating seat body 202. This eliminates the need for frequent assembly and disassembly to adjust the processing position. This is effective and convenient to use, and can improve processing efficiency.

[0054] At the same time, when the height positions of the flanges on the valve body are different, the first nut 11 can also be manually rotated, and the first nut 11 will drive the threaded sleeve 10 to rotate, and the threaded sleeve 10 will drive the second screw 9 to slide out from the end of the threaded sleeve 10, thereby driving the movable block 502 and the clamping jaw 503 to move. In this way, the center adjustment of the two clamping jaws 503 at the corresponding positions can be achieved to correspond to the flanges with different height positions, which further improves the applicability of the entire machine tool and effectively reduces the limitations of the use of the machine tool.

[0055] In addition, during use, the synchronous seat 15 can be pressed against the side of the fixed block 501, and the positioning pin 19 can be inserted into the positioning hole 18. At this time, the first gear 16 will engage with the second gear 17, and the positioning pin 19 will push the slider 22 to slide. The slider 22 will drive the block 20 to slide through the connecting rod 21, so that the block 20 is separated from the first gear 16. In this way, only a single rotation of the transmission sleeve 13 is required to drive the two telescopic shafts 14 to rotate synchronously at the same time, and the two telescopic shafts 14 will drive the second gears 17 in the two synchronous seats 15 to rotate synchronously, and finally drive the first gears 16 in the upper and lower corresponding positions to rotate synchronously, thereby realizing the synchronous adjustment of the upper and lower position clamps 503. In this way, the center of the two clamps 503 can be effectively guaranteed to remain unchanged, thereby ensuring the processing quality.

[0056] In summary, during the entire use process, the flange cylindrical surface of the valve body, which is basically possessed by the valve body, is clamped and fixed at the same time by the clamping assembly in the fixing assembly and multiple synchronously acting clamping parts in the clamping assembly. In this way, it is possible to fix valve bodies of various sizes and types, thereby eliminating the need to customize a separate clamp for each valve body, effectively reducing processing costs. In addition, there is no need to frequently replace the clamp, which can effectively improve processing efficiency.

[0057] Furthermore, during use, the clamping block 5 in the clamping portion can freely adjust the distance between itself and the control seat 4, so that various valve bodies with different flange-to-valve body center distances can be fixed, further improving the applicability of the entire machine tool.

[0058] At the same time, the movable block 502 of the clamping block 5 can also flexibly adjust its position with the fixed block 501 according to usage requirements. In this way, various valve bodies whose flange centers are inconsistent with the valve body centers can be fixed, which further improves the applicability of the entire machine tool. In addition, during use, the position of the movable block 502 can be adjusted to selectively control the loosening of one or more flanges, thereby meeting more processing requirements and being very flexible to use.

[0059] In addition, during use, the upper and lower movable blocks 502 can also be adjusted simultaneously through the synchronization component, so that the center between the two movable blocks 502 can be effectively guaranteed to remain unchanged, thereby ensuring the processing quality. At the same time, there is no need for workers to frequently adjust the center, which is conducive to improving processing efficiency.

[0060] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A special machine tool for valve body processing, characterized in that: The invention comprises a machine tool body (1) and a fixing assembly, wherein the fixing assembly is mounted on a slide of a slide box of the machine tool body (1), the fixing assembly comprises a base (2), a frame (3) rotatably mounted on the base (2), and a clamping assembly mounted on the frame (3), the base (2) being fixedly connected to the slide box of the machine tool body (1), the clamping assembly comprising a plurality of clamping parts with adjustable positions, and the plurality of clamping parts can act synchronously or be adjusted individually, and at the same time the clamping parts can clamp the flange cylindrical surface on the valve body to fix the valve body.

2. A valve body processing machine tool according to claim 1, characterized in that: The base (2) comprises a fixed seat body (201), a rotating seat body (202), a connecting shaft (203), a limiting plate (204) and a locking bolt (205); the fixed seat body (201) is fixed to a slide plate on a machine tool body (1); the connecting shaft (203) is rotatably mounted in the middle of the fixed seat body (201); the rotating seat body (202) is arranged above the fixed seat body (201) and is fixedly connected to the top of the connecting shaft (203); the frame (3) is fixed The fixed seat body (201) is fixedly installed on the rotating seat body (202), and a groove is provided on the bottom surface of the fixed seat body (201). The limit plate (204) is rotatably installed in the groove, and the rotation axis of the limit plate (204) is coaxially connected with the connecting shaft (203). A threaded hole is provided on the surface of the rotating seat body (202), and a locking bolt (205) is threadedly installed in the threaded hole. After the locking bolt (205) is tightened, the fixed seat body (201) and the rotating seat body (202) can be tightened.

3. A valve body processing machine tool according to claim 2, characterized in that: The clamping portion comprises a control seat (4) and a clamping block (5); the clamping block (5) is slidably mounted on the side of the control seat (4); the control seat (4) and the clamping block (5) each have two groups, which are distributed in upper and lower positions; a first adjustment component is connected between the clamping block (5) and the control seat (4); and the sliding distance of the clamping block (5) is controlled by the first adjustment component.

4. A valve body processing machine tool according to claim 3, characterized in that: The first adjustment assembly comprises a first guide rod (6) and a first screw rod (7); the first guide rod (6) is slidably inserted into the side of the control seat (4), and the end of the first guide rod (6) away from the control seat (4) is fixedly connected to the side of the clamping block (5); one end of the first screw rod (7) is threadedly inserted into the side of the control seat (4), and the other end is rotatably connected to the clamping block (5).

5. A valve body processing machine tool according to claim 4, characterized in that: The clamping block (5) comprises a fixed block (501), a movable block (502) and a second adjustment component. The fixed block (501) is connected to the first guide rod (6) and the first screw rod (7) at the same time. The movable block (502) is slidably mounted on the side of the fixed block (501). The side of the movable block (502) is detachably fixed with a clamping jaw (503) by means of screws. The clamping jaw (503) has two groups, and the ends of the two groups of clamping jaws (503) away from the movable block (502) are arranged in a V shape. At the same time, the two groups of clamping jaws (503) are located between the two control seats (4). The second adjustment component is connected between the fixed block (501) and the movable block (502), and the sliding distance of the movable block (502) is controlled by the second adjustment component.

6. A valve body processing machine tool according to claim 5, characterized in that: The second adjustment assembly comprises a second guide rod (8), a second screw rod (9) and a threaded sleeve (10); the second guide rod (8) is slidably inserted on the surface of the fixed block (501); the end of the second guide rod (8) away from the fixed block (501) is fixedly connected to the movable block (502); the threaded sleeve (10) is rotatably installed in the middle of the fixed block (501); the second screw rod (9) is threadedly inserted in the middle of the threaded sleeve (10); one end of the second screw rod (9) is fixedly connected to the movable block (502); the end of the threaded sleeve (10) away from the fixed block (501) is fixedly installed with a first nut (11); and the middle of the first screw rod (7) is fixedly installed with a second nut (12).

7. A valve body processing machine tool according to claim 6, characterized in that: A synchronization component is connected between the two threaded sleeves (10) located at the upper and lower positions, and the synchronization component includes a transmission sleeve (13), a telescopic shaft (14), a synchronization seat (15), a first gear (16) and a second gear (17). A cavity is provided in the middle of the fixed block (501), and the first gear (16) is installed in the cavity. The first gear (16) is fixedly sleeved on the surface of the threaded sleeve (10). There are two telescopic shafts (14), which are slidably inserted at both ends of the transmission sleeve (13) respectively. At the same time, the transmission sleeve (13) can drive the telescopic shaft (14) to rotate synchronously. The second gear (17) is rotatably installed in the middle of the synchronization seat (15), and the rotating shaft of the second gear (17) is coaxially connected with the telescopic shaft (14). At the same time, when the synchronous seat (15) is aligned and fitted with the side of the fixed block (501), the first gear (16) can mesh with the second gear (17).

8. The valve body processing machine tool according to claim 7, characterized in that: A positioning hole (18) is provided on the side of the fixed block (501), and a positioning pin (19) which can be inserted into the positioning hole (18) is fixedly installed on the side of the synchronous seat (15). After the positioning pin (19) is inserted into the positioning hole (18), the tooth grooves of the first gear (16) and the second gear (17) are aligned.

9. A valve body processing machine tool according to claim 8, characterized in that: The fixed block (501) is provided with a limiting assembly, which includes a clamping block (20), a connecting rod (21), a sliding block (22) and a reset spring (23). A limiting cavity is provided inside the fixed block (501). The clamping block (20) is slidably arranged in the limiting cavity. A clamping tooth (24) is provided in the middle of the clamping block (20). The clamping tooth (24) can mesh with the first gear (16). After the clamping tooth (24) meshes with the first gear (16), the first gear (16) can be limited. The reset spring (23) is installed between the clamping block (20) and the inner wall of the limiting cavity. ) under the action of the return spring (23), the latching tooth (24) is meshed with the first gear (16), the connecting rod (21) and the slider (22) are both slidably installed in the limiting cavity, and one end of the connecting rod (21) is fixedly connected to the slider (22), and the other end is fixedly connected to the clamping block (20), and at the same time, the sliding of the slider (22) can drive the clamping block (20) to slide through the connecting rod (21) to separate the latching tooth (24) from the first gear (16), the position of the slider (22) corresponds to the positioning hole (18), and after the positioning pin (19) is inserted into the positioning hole (18), the slider (22) can be pushed to slide.

10. A valve body processing machine tool according to any one of claims 3 to 9, characterized in that: The clamping assembly also includes a driving assembly, which includes a double-headed screw (25), a guide column (26), a hand wheel (27) and a driving seat (28). The frame (3) is in an "L" shape, and the long side end of the frame (3) is fixed to the surface of the rotating seat body (202). One end of the double-headed screw (25) is rotatably connected to the short side of the frame (3), and the other end is rotatably connected to the surface of the rotating seat body (202). The guide column (26) is fixedly connected between the short side of the frame (3) and the rotating seat body (202). The hand wheel (27) is rotatably mounted on the top of the frame (3). The hand wheel (27) is coaxially connected to the rotating shaft of the double-headed screw (25), and there are two drive seats (28). The two drive seats (28) are respectively connected to the double-headed screw (25) by left-handed thread and right-handed thread, and the drive seats (28) are slidably sleeved on the surface of the guide column (26). At the same time, the two drive seats (28) are respectively fixedly connected to the control seats (4) at the upper and lower positions. The two drive seats (28) are symmetrically arranged at both ends of the double-headed screw (25), and the two drive seats (28) are both slidably sleeved on the surface of the guide column (26).

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