A valve laser cutting device for valve machining

Abstract

The application discloses a valve laser cutting device for valve machining, and particularly relates to the technical field of valve laser cutting devices, which comprises an operation table, a top plate is fixedly connected to the rear side of the horizontal part of the upper end of the operation table, a hydraulic cylinder is fixedly connected to the front side of the middle part of the upper end of the top plate, a lifting assembly is fixedly installed on the rear part of the bottom wall of the operation table, and a switching assembly is slidingly installed on the inner surface of the operation table. The valve laser cutting device for valve machining is capable of independently adjusting the aperture according to the required cutting aperture when laser cutting is performed on the butterfly valve shell, and the cutting process is divided into three sections. Meanwhile, the switching assembly is arranged to enable the lifting assembly and the switching assembly to cooperate with each other, so that the butterfly valve shell can be automatically switched among three states during the cutting process, thereby facilitating subsequent laser cutting machining.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve laser cutting device, in particular to a valve laser cutting device for valve machining. BACKGROUND

[0002] In industrial production, laser cutting of valves has many important significance. First, laser cutting has high precision, can realize complex shape and size requirements, effectively improve the quality and performance of the valve. Second, the cutting speed is fast, which can significantly improve the production efficiency and reduce the production cost. Third, laser cutting is a non-contact processing method, which will not cause mechanical damage to the valve, ensuring the integrity and reliability of the valve. In addition, laser cutting can reduce material waste and improve material utilization, which conforms to the concept of sustainable development.

[0003] However, in the prior art, there is no device for laser cutting of butterfly valve shell, which makes it difficult to fully utilize the advantages of laser cutting when machining the butterfly valve shell, affecting the production efficiency and product quality.

[0004] Chinese patent No. CN119839474A discloses a valve laser cutting device for valve machining, which belongs to the technical field of valve machining and comprises a support base for supporting a rotating assembly; a rotating assembly for adjusting the position of the valve and moving the valve under or out from under the laser cutting assembly; a support assembly for supporting the placing assembly and the adjusting assembly; an adjusting assembly for adjusting the position of the laser cutting assembly; and a laser cutting assembly for laser cutting of the valve. The first hydraulic telescopic rod is provided, and the first hydraulic telescopic rod can drive the first connecting block to move when started. The first connecting block can drive the side column and the side block to move when moving, and the side block can drive the second electric sliding rail and the first electric sliding rail to move when moving, thereby facilitating the adjustment of the position of the laser cutter and enabling the laser cutter to cut valves of different sizes.

[0005] Although the device in the above-mentioned patent document can achieve the effect of laser cutting of the valve, it cannot laser cut the butterfly valve shell in actual use. In addition, the butterfly valve shell needs to be cut at three places during laser cutting, and the device cannot meet the cutting processing steps. SUMMARY

[0006] The main purpose of the present application is to provide a valve laser cutting device for valve machining, which can effectively solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0008] A valve laser cutting device for valve machining, including an operating table, the operating table upper end horizontal part rear side is fixedly connected with a top plate, the top plate upper end middle part front side is fixedly connected with a hydraulic cylinder, the operating table bottom wall rear part is fixedly installed with a lifting assembly, the operating table inner surface is slidably installed with a switching assembly.

[0009] Preferably, the operating table inner surface left side wall middle part and the inner surface right side wall middle part are both provided with an installation slot, the two installation slot inner surface front side wall middle part is both provided with a limiting slot one, the operating table inner surface left side wall rear side and the inner surface right side wall rear side are both provided with a limiting slot two which communicates with the same side limiting slot one inner cavity.

[0010] Preferably, the lifting assembly includes a hollow shell fixedly connected with the operating table bottom wall middle part rear side, the hollow shell inner surface is slidably connected with an F-shaped plate, the F-shaped plate lower end linear array is fixedly connected with a plurality of springs, the other end of the plurality of springs is both fixedly connected with the operating table bottom wall, the F-shaped plate inner surface front side annular array is rotatably connected with a plurality of friction rollers, the upper end of the friction roller located in the middle part is fixedly connected with a driving mechanism, the F-shaped plate inner surface front side edge is slidably installed with a cutting adjustment assembly, the output end of the hydraulic cylinder is fixedly connected with a connecting rod through a piston rod, the connecting rod lower end penetrates the top plate lower end and the F-shaped plate horizontal part lower end and extends to the outside.

[0011] Preferably, the cutting adjustment assembly includes a driving disc slidably connected with the F-shaped plate inner surface front side edge, the driving disc outer surface and the plurality of friction roller outer surfaces are mutually attached, the driving disc upper end front side is provided with a guide slot one, the driving disc upper end middle part rear side is provided with a guide slot two, the driving disc lower end is slidably connected with a triangular plate, the triangular plate triangular part is both provided with an installation hole, the installation hole inner surface is both fixedly connected with an extension rod, the left two extension rods are both located inside the guide slot one, the right extension rod is located inside the guide slot two, the left two extension rod outer surfaces lower part are both fixedly connected with a limiting ring, the right extension rod lower end is fixedly connected with a laser cutting head, the three limiting ring upper ends are both provided with a threaded hole, the threaded hole inner surface is both threadedly connected with a threaded head.

[0012] Preferably, the length of the guide slot one is twice the length of the guide slot two, and the triangular plate is arranged in an equilateral triangle.

[0013] Preferably, the switching assembly comprises a concave plate fixedly connected to the upper portion of the outer surface of the connecting rod, the lower end of the vertical portion of the concave plate is fixedly connected with an extension plate, the upper end of the two extension plates is fixedly connected with a reinforcing plate on the side close to each other of the vertical portion of the concave plate, the front end of the two extension plates is fixedly connected with a sliding plate, the middle portion of the end of the two sliding plates away from each other is rotatably connected with a gear, the middle portion of the outer surface of the connecting rod is fixedly connected with a top ring, the side of the rear wall of the inner surface of the two mounting grooves away from each other is fixedly connected with a rack, the rack on the same side is meshed with the gear on the same side, and the end of the two sliding plates close to each other is rotatably connected with a clamping assembly.

[0014] Preferably, the clamping assembly comprises two connection columns rotatably connected with the middle portion of the end of the two sliding plates close to each other, the end of the two connection columns away from each other is rotatably connected with the sliding plate on the same side and fixedly connected with the gear on the same side, the end of the two connection columns close to each other is fixedly connected with a cavity box, the top wall of the cavity box is rotatably connected with a two-way threaded rod, the outer surface of the two-way threaded rod is threadedly connected with two arc-shaped clamping plates, the two arc-shaped clamping plates on the same side are slidably connected to the inner surface of the cavity box on the same side, the lower end of the two-way threaded rod is fixedly connected with an extension column, the lower end of the extension column is rotatably connected with the lower end of the cavity box and extends to the outside, the lower portion of the outer surface of the extension column is fixedly connected with a belt pulley, the outer surface of the two belt pulleys is commonly wound with a transmission belt, the side of the lower end of the two cavity boxes away from each other is fixedly connected with a C-shaped plate, the rightmost side of the middle portion of the bottom wall of the C-shaped plate is fixedly connected with a motor, the output end of the motor is fixedly connected with the lower end of the belt pulley on the right side through a shaft coupling, the leftmost side of the middle portion of the bottom wall of the C-shaped plate is rotatably connected with a limiting column, the upper end of the limiting column is fixedly connected with the lower end of the belt pulley on the left side, and the end of the two arc-shaped clamping plates close to each other is commonly placed with a butterfly valve shell.

[0015] Preferably, the two extension plates are slidably connected to the inner surface of the limiting groove one on the same side, and the two sliding plates are slidably connected to the inner surface of the mounting groove on the same side.

[0016] Preferably, the stroke of the rack from top to bottom on the same side is the same as the stroke of the gear rotating three rounds on the same side.

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

[0018] 1. The lifting assembly is provided, when the butterfly valve shell is laser cut, the aperture required to be cut can be adjusted automatically, and in the cutting process, it is cut into three sections, and the switching assembly is provided, the lifting assembly and the switching assembly are matched, in the three-section cutting process, the butterfly valve shell can be automatically switched in three states during the cutting process, without manual adjustment of the cutting direction, so as to facilitate subsequent laser cutting processing, and the lifting assembly and the switching assembly are matched, so that the laser cutting head is not impacted during normal cutting.

[0019] 2. The switching assembly is provided, in the use process, the thickness of the butterfly valve shell can be adjusted and clamped automatically, and after the butterfly valve shell is clamped and fixed, the stroke of the switching assembly is limited, so that the accuracy of the switching of the butterfly valve shell in three states is improved. DETAILED DESCRIPTION

[0020] Figure 1 It is the overall structure schematic diagram of the application;

[0021] Figure 2 It is the opening position schematic diagram of the mounting groove, the limiting groove one and the limiting groove two of the application;

[0022] Figure 3 It is the installation position schematic diagram of the lifting assembly and the switching assembly of the application;

[0023] Figure 4 It is the local structure schematic diagram of the application;

[0024] Figure 5 It is the overall structure schematic diagram of the lifting assembly of the application;

[0025] Figure 6 It is the overall structure schematic diagram of the cutting adjusting assembly of the application;

[0026] Figure 7 It is another view structure schematic diagram of the cutting adjusting assembly of the application;

[0027] Figure 8 It is another state structure schematic diagram of the cutting adjusting assembly of the application;

[0028] Figure 9 It is the overall structure schematic diagram of the switching assembly of the application;

[0029] Figure 10 It is the overall structure schematic diagram of the clamping assembly of the application.

[0030] In the diagram: 1. Operating platform; 2. Top plate; 3. Hydraulic cylinder; 4. Lifting assembly; 41. Hollow shell; 42. F-shaped plate; 43. Spring; 44. Friction roller; 45. Cutting adjustment assembly; 46. Connecting rod; 451. Drive disc; 452. Guide groove one; 453. Guide groove two; 454. Triangular plate; 455. Extension rod; 456. Limiting ring; 457. Laser cutting head; 458. Threaded hole; 459. Threaded head; 5. Switching assembly; 51. Concave plate; 52. Extension plate; 53. Reinforcing plate; 54. Slide plate; 55. Gear; 56. Top ring; 57. Rack; 58. Clamping assembly; 581. Connecting post; 582. Hollow box; 583. Bidirectional threaded rod; 584. Arc-shaped clamping plate; 585. Extension post; 586. Pulley; 587. Drive belt; 588. C-shaped plate; 589. Motor; 580. Limiting post; 59. Butterfly valve housing; 11. Mounting groove; 12. Limiting groove one; 13. Limiting groove two. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] Example 1, as Figure 1 , Figure 3 and Figure 4 As shown, a valve laser cutting device for valve processing includes an operating table 1. A top plate 2 is fixedly connected to the rear side of the upper horizontal part of the operating table 1. A hydraulic cylinder 3 is fixedly connected to the front side of the middle part of the upper part of the top plate 2. A lifting component 4 is fixedly installed on the rear side of the bottom wall of the operating table 1. Through the lifting component 4, when laser cutting the butterfly valve shell 59, it can be automatically adjusted according to the required cutting diameter. In addition, the cutting process is divided into three stages. At the same time, through the switching component 5, the lifting component 4 and the switching component 5 cooperate with each other to realize the three-stage cutting process. The butterfly valve shell 59 can also automatically switch between three states during the cutting process without manual adjustment of the cutting position, which is convenient for subsequent laser cutting processing. Furthermore, the lifting component 4 and the switching component 5 cooperate with each other to prevent the laser cutting head 457 from being impacted during normal cutting.

[0033] A switching component 5 is slidably installed on the inner surface of the control panel 1. Through the switching component 5, the butterfly valve housing 59 can be automatically adjusted and clamped according to its thickness during use. After the butterfly valve housing 59 is fixedly clamped, the accuracy of switching the butterfly valve housing 59 in three states is improved by limiting the stroke of the switching component 5.

[0034] The second embodiment is based on the first embodiment, to realize three-section processing, and in the processing process, the laser cutting is carried out on the butterfly valve shell 59 with different hole diameters.

[0035] Specifically, referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 , the middle part of the left inner side wall and the middle part of the right inner side wall of the operating table 1 are provided with mounting grooves 11, the middle part of the front inner side wall of the two mounting grooves 11 is provided with a limiting groove 12, and the rear side of the left inner side wall and the rear side of the right inner side wall of the operating table 1 are provided with a limiting groove 13 which communicates with the inner cavity of the same side limiting groove 12.

[0036] Further, the lifting assembly 4 comprises a hollow shell 41 fixedly connected to the middle part of the bottom wall of the operating table 1, a F-shaped plate 42 slidably connected to the inner surface of the hollow shell 41, a plurality of springs 43 fixedly connected in linear array to the lower end of the F-shaped plate 42, the other ends of the plurality of springs 43 being fixedly connected to the bottom wall of the operating table 1, a plurality of friction rollers 44 rotatably connected in annular array to the front inner surface of the F-shaped plate 42, the upper end of the friction roller 44 located in the middle being fixedly connected with a driving mechanism, a cutting adjusting assembly 45 being slidably installed at the front edge of the inner surface of the F-shaped plate 42, and a connecting rod 46 being fixedly connected to the output end of the hydraulic cylinder 3 through a piston rod, the lower end of the connecting rod 46 penetrating through the lower end of the top plate 2 and the lower end of the horizontal part of the F-shaped plate 42 and extending to the outside.

[0037] Further, the cutting adjusting assembly 45 comprises a driving disc 451 slidably connected to the front edge of the inner surface of the F-shaped plate 42, the outer surface of the driving disc 451 being in mutual adhesion with the outer surface of the plurality of friction rollers 44, a guide groove one 452 being formed in the front upper end of the driving disc 451, a guide groove two 453 being formed in the middle rear upper end of the driving disc 451, a triangular plate 454 being slidably connected to the lower end of the driving disc 451, mounting holes being formed in the three corners of the triangular plate 454, extension rods 455 being fixedly connected to the inner surface of the three mounting holes, the two extension rods 455 located on the left being located inside the guide groove one 452, the extension rod 455 located on the right being located inside the guide groove two 453, limiting rings 456 being fixedly connected to the outer surface of the lower part of the two extension rods 455 located on the left, a laser cutting head 457 being fixedly connected to the lower end of the extension rod 455 located on the right, threaded holes 458 being formed in the upper end of the three limiting rings 456, and threaded heads 459 being threadedly connected to the inner surface of the three threaded holes 458.

[0038] Further, the length of the guide groove one 452 is twice the length of the guide groove two 453, and the triangular plate 454 is arranged in an equilateral triangle.

[0039] Further, the switching assembly 5 comprises a concave plate 51 fixedly connected to the upper part of the outer surface of the connecting rod 46, the vertical part of the concave plate 51 is fixedly connected with an extension plate 52 at the lower end, the upper end of the two extension plates 52 is fixedly connected with a reinforcing plate 53 on the side close to each other of the vertical part of the concave plate 51, the front end of the two extension plates 52 is fixedly connected with a sliding plate 54, the middle part of the end of the two sliding plates 54 away from each other is rotatably connected with a gear 55, the middle part of the outer surface of the connecting rod 46 is fixedly connected with a top ring 56, the inner surface of the rear side wall of the two mounting grooves 11 is fixedly connected with a rack 57 on the side away from each other, the same side rack 57 and the same side gear 55 are meshed with each other, and the end of the two sliding plates 54 close to each other is rotatably installed with a clamping assembly 58.

[0040] Further, the clamping assembly 58 comprises two sliding plates 54 rotatably connected with an adapter column 581 in the middle part of the end close to each other, the end away from each other of the two adapter columns 581 is penetrated through the same side sliding plate 54 and fixedly connected with the same side gear 55, the end close to each other of the two adapter columns 581 is fixedly connected with a cavity box 582, the top wall of the two cavity boxes 582 is rotatably connected with a two-way threaded rod 583, the outer surface of the two two-way threaded rods 583 is threadedly connected with two arc-shaped clamping plates 584, the same side two arc-shaped clamping plates 584 are respectively slidably connected to the inner surface of the same side cavity box 582, the lower end of the two two-way threaded rods 583 is fixedly connected with an extension column 585, the lower end of the two extension columns 585 is penetrated through the lower end of the same side cavity box 582 and extends to the outside, the lower part of the outer surface of the two extension columns 585 is fixedly connected with a belt pulley 586, the outer surface of the two belt pulleys 586 is commonly wound with a transmission belt 587, the lower end of the two cavity boxes 582 away from each other is commonly fixedly connected with a C-shaped plate 588, the bottom wall of the C-shaped plate 588 is fixedly connected with a motor 589 at the rightmost side of the middle part, the output end of the motor 589 is fixedly connected with the lower end of the right belt pulley 586 through a shaft coupling, the bottom wall of the C-shaped plate 588 is rotatably connected with a limiting column 580 at the leftmost side of the middle part, the upper end of the limiting column 580 is fixedly connected with the lower end of the left belt pulley 586, and the end close to each other of the same side two arc-shaped clamping plates 584 is commonly placed with a butterfly valve housing 59.

[0041] Further, the two extension plates 52 are respectively slidably connected to the inner surface of the same side limiting groove one 12, the two sliding plates 54 are respectively slidably connected to the inner surface of the same side mounting groove 11, and the left vertical part and the right vertical part of the concave plate 51 are respectively slidably connected to the inner surface of the same side limiting groove two 13.

[0042] Further, the stroke from top to bottom of the same side rack 57 is the same as the stroke of three rotations of the same side gear 55.

[0043] First segment processing:

[0044] In the first segment processing, first, the butterfly valve shell 59 is placed between the two arc-shaped clamping plates 584, and then the motor 589 is started to drive the belt pulley 586 fixedly connected to the output end of the motor 589 to rotate, and the two belt pulleys 586 are jointly wound with the transmission belt 587, so that the other side of the belt pulley 586 can be driven to rotate under the action of the transmission belt 587, and when the two belt pulleys 586 rotate, the two-way threaded rod 583 on the same side is fixedly connected with the extension column 585 on the same side, so that the two-way threaded rod 583 on the two sides can be rotated at the same time, thereby the arc-shaped clamping plates 584 on the two sides are simultaneously moved inward to clamp the butterfly valve shell 59;

[0045] After the butterfly valve shell 59 is clamped, the three threaded heads 459 are reversely rotated so that the three threaded heads 459 are no longer pressed on the upper end of the driving disc 451, without completely rotating the three threaded heads 459 to be separated, then the threaded head 459 close to the front side in the guide groove one 452 is pulled to drive the extension rod 455 corresponding to the threaded head 459 to move in the guide groove one 452, and the three extension rods 455 are fixedly connected with the mounting hole of the triangular plate 454 at the triangular position, so that the triangular plate 454 can be moved at the same time. As known from the above, the triangular plate 454 is arranged in an equilateral triangle, and the stability of the equilateral triangle is the best, so that the triangular plate 454 has better stability and is not easy to deviate when moving;

[0046] When the two extension rods 455 on the rear side of the triangular plate 454 respectively abut against the rear side arc surface of the inner surface of the guide groove one 452 and the guide groove two 453, the position corresponding to the laser cutting head 457 is the maximum radius value that can be cut, and the three threaded heads 459 are rotated to be threadedly connected with the threaded hole 458 on the same side, so that the three threaded heads 459 are pressed and clamped with the upper end of the driving disc 451, thereby preventing the triangular plate 454 from moving;

[0047] Then the driving mechanism connected with the intermediate position friction roller 44 is started to drive the intermediate position friction roller 44 to rotate, and the outer surfaces of the plurality of friction rollers 44 are in close contact with the outer surface of the driving disc 451, so that the driving disc 451 can be rotated when the friction rollers 44 rotate. When the driving disc 451 rotates, the laser cutting head 457 is in an activated state, and can perform circular laser cutting on the upper side of the butterfly valve shell 59, thereby completing the first segment processing.

[0048] Second segment processing:

[0049] When the first stage of processing is completed, the hydraulic cylinder 3 can be activated, causing the output end of the hydraulic cylinder 3 to drive the connecting rod 46, which is fixedly connected to it, to move downward for a certain stroke through the piston rod. During this process, the connecting rod 46 can drive the concave plate 51, which is fixedly connected to its outer surface, to move downward. As mentioned above, the two extension plates 52 are slidably connected to the inner surface of the same side limiting groove 12, and the two sliding plates 54 are slidably connected to the inner surface of the same side mounting groove 11. The left vertical part and the right vertical part of the concave plate 51 are slidably connected to the inner surface of the same side limiting groove 13. Therefore, during the downward movement of the concave plate 51, the extension plates 52 and the sliding plates 54 can be driven downward at the same time. When the sliding plates 54 on both sides slide downward in the corresponding mounting grooves 11, the gear 55, which is rotatably connected to it, meshes with the rack 57 on the same side. Therefore, the gear 55 can rotate during the downward movement.

[0050] By fixing a reinforcing plate 53 between the concave plate 51 and the extension plate 52, the load-bearing capacity between the concave plate 51 and the extension plate 52 can be strengthened under the action of the reinforcing plate 53, so that the concave plate 51 can drive the extension plate 52 and the sliding plate 54 to move up and down.

[0051] As can be seen from the above, the downward travel of the rack 57 on the same side is the same as the travel of the gear 55 on the same side rotating three times. Therefore, when the gear 55 moves downward and rotates one revolution, it is one stroke. During this stroke, the two gears 55 can simultaneously drive the connecting column 581 fixedly connected to them to rotate. Then, the two connecting columns 581 respectively drive the cavity box 582 fixedly connected to them to rotate simultaneously. When the two cavity boxes 582 rotate, the other structures fixedly connected to them also rotate, and the butterfly valve housing 59 held by the arc-shaped clamps 584 on both sides rotates to a vertical position.

[0052] At this time, the butterfly valve housing 59 moves downward a certain distance as the cavity box 582 rotates. Then, the operation of adjusting the position of the triangular plate 454 in the first stage of processing can be repeated so that the outer surface of the extension rod 455, which is fixedly connected to the laser cutting head 457, fits against the arc surface on the front side of the guide groove 453. At this time, the position of the laser cutting head 457 is aligned with the upward arc surface of the butterfly valve housing 59. Then, the drive structure connected to the friction roller 44 is activated again to drive the drive disk 451 to rotate, thereby realizing that the laser cutting head 457 performs laser cutting processing around the center position on the upper side of the arc surface of the vertical butterfly valve housing 59, thus completing the purpose of the second stage of processing.

[0053] Third stage of processing:

[0054] When the second segment of processing is completed, the laser circle cutting process is still needed to be carried out on the other side of the outer arc surface of the butterfly valve shell 59, at this time, only the hydraulic cylinder 3 is started to make the output end move upward through the piston rod to drive the connecting rod 46, and when the connecting rod 46 moves upward, the concave plate 51 is driven to move upward, and in the process of driving the upper end of the gear 55 to move, the cavity box 582 is driven to rotate reversely to return to the state of the first segment of processing, at this time, the butterfly valve shell 59 is in a horizontal state;

[0055] When the output end of the hydraulic cylinder 3 further drives the connecting rod 46 and the concave plate 51 to move upward through the piston rod, the top ring 56 will then touch the inner surface top wall of the F-shaped plate 42, thereby lifting the F-shaped plate 42 upward as a whole, so that the F-shaped plate 42 slides upward on the inner surface of the hollow shell 41, and the spring 43 fixedly connected thereto is stretched, and at the same time, the driving disc 451 is also driven to move upward;

[0056] At the same time, the gear 55 continues to roll upward with the concave plate 51, and drives the cavity box 582 and the C-shaped plate 588 to be perpendicular to the rear, and the C-shaped plate 588 does not touch the laser cutting head 457, and then the driving mechanism connected with the friction roller 44 is started again to drive the driving disc 451 to rotate, so as to realize the laser cutting head 457 to cut the other side of the arc surface of the butterfly valve shell 59 by laser circle cutting;

[0057] And in the second segment of processing and the third segment of processing, since the length of the guide groove one 452 is twice the length of the guide groove two 453, when the extension rod 455 located at the rear side is completely pulled to be attached to the front side arc surface of the guide groove one 452, the extension rod 455 fixedly connected with the laser cutting head 457 is just attached to the arc surface of the front side of the guide groove two 453, as shown in Figure 8 .

[0058] The driving mechanism in the above is composed of a servo motor in the prior art, and in the present scheme, only the rotation of the friction roller 44 needs to be driven, and the specific installation mode, circuit connection mode and control method thereof are all conventional designs, and the actual installation mode can be adjusted according to the production needs, so the present scheme will not be described in detail.

[0059] It should be particularly pointed out that the specific installation mode, circuit connection mode and control method of the hydraulic cylinder 3, the laser cutting head 457 and the motor 589 in the present application are all conventional designs, and the present application will not be described in detail.

[0060] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A valve laser cutting device for valve machining, comprising an operating table (1), characterized in that: The top plate (2) is fixedly connected to the rear side of the upper horizontal part of the operating table (1), a hydraulic cylinder (3) is fixedly connected to the front side of the middle part of the upper end of the top plate (2), a lifting assembly (4) is fixedly installed on the rear part of the bottom wall of the operating table (1), and a switching assembly (5) is slidingly installed on the inner surface of the operating table (1). Limiting grooves two (13) are formed in the rear side of the left side wall and the rear side of the right side wall of the inner surface of the operating table (1) and communicate with the inner cavities of the limiting grooves one (12) on the same side. The lifting assembly (4) comprises a hollow shell (41) fixedly connected to the rear side of the middle part of the bottom wall of the operating table (1), an F-shaped plate (42) slidingly connected to the inner surface of the hollow shell (41), a plurality of springs (43) fixedly connected in linear array to the lower end of the F-shaped plate (42), the other ends of the springs (43) being fixedly connected to the bottom wall of the operating table (1), a plurality of friction rollers (44) rotatably connected in annular array to the front side of the inner surface of the F-shaped plate (42), a driving mechanism being fixedly connected to the upper end of the friction roller (44) located in the middle part, a cutting adjusting assembly (45) slidingly installed at the front side edge of the inner surface of the F-shaped plate (42), and a connecting rod (46) fixedly connected to the output end of the hydraulic cylinder (3) through a piston rod. The cutting adjusting assembly (45) comprises a driving disc (451) slidingly connected to the front side edge of the inner surface of the F-shaped plate (42), the outer surfaces of the driving disc (451) and the friction rollers (44) being mutually attached, a guide groove one (452) being formed in the front side of the upper end of the driving disc (451), a guide groove two (453) being formed in the rear side of the middle part of the upper end of the driving disc (451), a triangular plate (454) slidingly connected to the lower end of the driving disc (451), mounting holes being formed in the three corners of the triangular plate (454), extension rods (455) being fixedly connected to the inner surfaces of the three mounting holes, the extension rods (455) located on the left side being located inside the guide groove one (452), the extension rod (455) located on the right side being located inside the guide groove two (453), limiting rings (456) being fixedly connected to the outer surfaces of the lower parts of the extension rods (455) located on the left side, a laser cutting head (457) being fixedly connected to the lower end of the extension rod (455) located on the right side, threaded holes (458) being formed in the upper ends of the three limiting rings (456), and threaded heads (459) being threadedly connected to the inner surfaces of the three threaded holes (458). The switching assembly (5) includes a concave plate (51) fixedly connected to the upper part of the outer surface of the connecting rod (46), the lower end of the vertical part of the concave plate (51) is fixedly connected with an extension plate (52), the upper end of the two extension plates (52) is fixedly connected with a reinforcing plate (53) on the side close to the vertical part of the concave plate (51), the front end of the two extension plates (52) is fixedly connected with a sliding plate (54), the middle part of the end of the two sliding plates (54) away from each other is rotatably connected with a gear (55), the middle part of the outer surface of the connecting rod (46) is fixedly connected with a top ring (56), the side of the inner surface of the rear wall of the two mounting grooves (11) away from each other is fixedly connected with a rack (57), the rack (57) on the same side is engaged with the gear (55) on the same side, and the end of the two sliding plates (54) close to each other is rotatably installed with a clamping assembly (58).

2. The laser cutting apparatus for valve machining of claim 1, wherein: The length of the guide groove one (452) is twice the length of the guide groove two (453), and the triangular plate (454) is arranged in an equilateral triangle.

3. The laser cutting apparatus for valve machining of claim 1, wherein: The clamping assembly (58) includes two connection columns (581) rotatably connected to the middle part of the end of the two sliding plates (54) close to each other, the ends of the two connection columns (581) away from each other are penetrated through the same side sliding plate (54) and fixedly connected with the same side gear (55), the ends of the two connection columns (581) close to each other are fixedly connected with a cavity box (582), the top wall of the cavity box (582) is rotatably connected with a two-way threaded rod (583), the outer surface of the two-way threaded rod (583) is threadedly connected with two arc-shaped clamping plates (584), the two arc-shaped clamping plates (584) on the same side are respectively slidably connected to the inner surface of the same side cavity box (582), the lower ends of the two two-way threaded rods (583) are fixedly connected with two extension columns (585), the lower ends of the two extension columns (585) are penetrated through the lower end of the same side cavity box (582) and extend to the outside, the lower part of the outer surface of the two extension columns (585) is fixedly connected with a belt pulley (586), the outer surfaces of the two belt pulleys (586) are commonly wound with a transmission belt (587), the side of the lower ends of the two cavity boxes (582) away from each other is fixedly connected with a C-shaped plate (588), the bottom wall of the C-shaped plate (588) is fixedly connected with a motor (589) at the rightmost side of the middle part, the output end of the motor (589) is fixedly connected with the lower end of the right side belt pulley (586) through a shaft coupling, the bottom wall of the C-shaped plate (588) is rotatably connected with a limiting column (580) at the leftmost side of the middle part, the upper end of the limiting column (580) is fixedly connected with the lower end of the left side belt pulley (586), and the ends of the two arc-shaped clamping plates (584) close to each other are commonly placed with a butterfly valve shell (59).

4. The laser cutting apparatus for valve machining of claim 1, wherein: Two described extension plate (52) are respectively connected in the same side limit groove one (12) inner surface, two described sliding plate (54) are respectively connected in the same side limit groove (11) inner surface, described concave plate (51) left side vertical part and right side vertical part are respectively connected in the same side limit groove two (13) inner surface.

5. The laser cutting apparatus for valve machining of claim 1, wherein: The stroke of the same side rack (57) from top to bottom is the same as the stroke of three rotations of the same side gear (55).

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