A drilling machine device for steam turbine valve production

By introducing a misalignment separation and wear triggering mechanism into the drilling equipment, the valve processing problems caused by drill bit deflection and wear were solved, realizing automatic separation and precise drilling, and improving the yield and processing quality of valve production.

CN121447101BActive Publication Date: 2026-04-17YICHUAN TECH CHENGDU CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
YICHUAN TECH CHENGDU CO LTD
Filing Date
2026-01-05
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

During the production of steam turbine valves, drill bit deflection and wear can cause valve openings to be misaligned or insufficient in depth, affecting yield and increasing production costs, and even leading to valve scrapping.

Method used

A drilling machine device including a misalignment separation mechanism and a wear triggering mechanism was designed. It can automatically detect the position and wear condition of the drill bit, and automatically separate the valve and the clamp when the drill bit is misaligned or worn, so as to ensure drilling accuracy and prevent damage.

Benefits of technology

Automatic separation and precise position detection improve the valve yield, avoid valve damage and secondary processing, and reduce production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a drilling machine equipment for turbine valve production and relates to the field of drilling machine equipment.The drilling machine equipment comprises a double-sided drilling machine, two drilling sliding seats are slidably arranged on the double-sided drilling machine, a drill seat is arranged on the drilling sliding seat, a plurality of drills are arranged on the drill seat, two valve clamps and a pressing cylinder are further arranged on the double-sided drilling machine.It is to be noted that in the application, when the drills are misaligned, the two valve clamps are separated, the valve is separated from the double-sided drilling machine, the defect is prevented from being enlarged, the valve is automatically unlocked, and the scrapped product is avoided;when the drills are reset, if the drills are excessively worn or broken, the valve can be separated from the valve clamp, the problems of missing drilling and short drilling are avoided;in addition, when the valve is separated from the valve clamp, the chip removal strips are automatically reset, the waste chips on the valve clamp are pushed away, the purpose of automatic chip removal is achieved, the problem that the waste chips affect the drilling quality is avoided, and the machining quality of the valve is further ensured.
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Description

Technical Field

[0001] This invention relates to the field of drilling equipment technology, and in particular to a drilling equipment for the production of steam turbine valves. Background Technology

[0002] A steam turbine is an external combustion rotary machine that converts the thermal energy of steam into mechanical work. Steam from the boiler enters the turbine and passes through a series of annularly arranged nozzles and blades, converting the steam's thermal energy into the mechanical energy of the turbine rotor's rotation. Different energy conversions of steam within the turbine result in turbines with different operating principles. Due to the complexity of the turbine system, a large number of valves are required.

[0003] It should be noted that during valve production, a double-sided drilling machine is required to drill holes in the valves. However, due to the valve's structural characteristics, material properties, and the limitations of the equipment itself, the drill bit is prone to deflection during actual processing due to wear. If the drill bit deflects and the angle of deflection is small, it is not easily detected, resulting in incorrect valve opening positions. In addition, if the drill bit is excessively worn or broken, the local opening depth may be insufficient, leading to a decrease in the yield rate of valve production. These problems can range from requiring secondary processing of the valve, increasing production costs, to directly causing the valve to be scrapped, resulting in economic losses for the manufacturing company. Summary of the Invention

[0004] The purpose of this invention is to provide a drilling machine for the production of steam turbine valves, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A drilling machine for producing steam turbine valves includes a double-sided drilling machine with two drilling slides slidably mounted on it. A drill bit seat is mounted on the drilling slide and a plurality of drill bits are mounted on the drill bit seat. The double-sided drilling machine is also equipped with two valve clamps and a clamping cylinder. A clamping seat is mounted on the output shaft of the clamping cylinder.

[0007] It also includes a misalignment separation mechanism, which is mounted on the double-sided drilling machine. The two valve clamps are mounted on the misalignment separation mechanism, which is used to separate the two valve clamps. The misalignment separation mechanism includes two adapter mounting seats, both of which are mounted on the double-sided drilling machine. The two valve clamps are slidably mounted on the two adapter mounting seats, and two intermediate transfer pushers are slidably mounted on the two adapter mounting seats. Each of the two intermediate transfer pushers is equipped with a drilling guide plate.

[0008] The double-sided drilling machine is equipped with a wear triggering mechanism for detecting the length of the drill bit. The wear triggering mechanism includes two detection mounting frames, both of which are mounted on the double-sided drilling machine. Multiple mounting sleeves are equidistantly mounted in a ring on each detection mounting frame. A detection top frame is movably mounted on each mounting sleeve, and a detection top plate is mounted on the detection top frame. The detection top plate contacts the drill bit at the corresponding position.

[0009] Furthermore, in a preferred embodiment of the present invention, the misalignment separation mechanism further includes four extrusion separation rotating rods, with two of the extrusion separation rotating rods located on the same side rotatably mounted on one of the adapter mounting seats;

[0010] Two separation shafts are installed on the extrusion separation rotor, and a separation drive groove is opened on the valve clamp, with one of the separation shafts movably installed in the separation drive groove.

[0011] Furthermore, in a preferred embodiment of the present invention, one of the adapter mounting bases has two first rotating slots, and the other separation shaft is rotatably mounted in the first rotating slot;

[0012] A first torsion spring is installed on the inner wall of the first rotating groove, and the first torsion spring is mounted on the separating rotating shaft.

[0013] Furthermore, in a preferred embodiment of the present invention, two limiting grooves are provided on one of the adapter mounting bases, and a push bar is slidably installed in the limiting grooves, the push bar being mounted on the transfer push frame;

[0014] A push spring is installed on the inner wall of the limiting groove, and the push spring is mounted on the push bar.

[0015] Furthermore, in a preferred embodiment of the present invention, the wear triggering mechanism further includes two push rings, and multiple mounting sleeves located on the same side are slidably mounted with pull-out slides, and the push rings are mounted on multiple pull-out slides located on the same side;

[0016] Multiple push columns are installed equidistantly in a ring on the push ring, and the push columns are in contact with the drilling guide plate.

[0017] Furthermore, in a preferred embodiment of the present invention, a transfer push rod is rotatably mounted between the detection top frame and the extraction slide bar, and a retraction spring is mounted between the detection top frame and the mounting sleeve;

[0018] Two adapter shafts are rotatably mounted on the adapter push rod, and the two adapter shafts are respectively mounted on the detection top frame and the extraction slide bar.

[0019] Furthermore, in a preferred embodiment of the present invention, two linked chip removal mechanisms are further included. The two linked chip removal mechanisms are respectively installed on the two valve clamps, and the linked chip removal mechanisms are used to remove chips from the valve clamps.

[0020] The linked chip removal mechanism includes a chip removal bar, which is slidably mounted on the valve clamp. The chip removal bar moves to push away the waste chips on the valve clamp.

[0021] Furthermore, in a preferred embodiment of the present invention, a connecting seat is installed on the valve clamp, a drive rod is rotatably installed on the connecting seat, two chip removal shafts are installed on the drive rod, the chip removal bar has a chip removal driving groove, and one of the chip removal shafts is movably installed in the chip removal driving groove;

[0022] The connecting seat has a second rotating groove, and another chip removal shaft is rotatably installed in the second rotating groove. A second torsion spring is installed on the inner wall of the second rotating groove and is installed on the chip removal shaft.

[0023] Furthermore, in a preferred embodiment of the present invention, a transition post is installed on the bottom side of the drive rod, and a connecting drive frame is movably sleeved on the transition post, and the connecting drive frame is slidably installed on the double-sided drilling machine.

[0024] A downward pressure rod is movably mounted on the sleeve drive frame, and a redundant spring is installed between the sleeve drive frame and the downward pressure rod.

[0025] Furthermore, in a preferred embodiment of the present invention, the adapter post is provided with a driving arc groove, and a driving arc block is movably installed in the driving arc groove. The driving arc block is installed on the inner wall of the sleeve driving frame.

[0026] The beneficial effects of the drilling machine equipment for producing steam turbine valves proposed in this invention are:

[0027] In this invention, through the setting of the misalignment separation mechanism, the drill bit first contacts the drilling guide plate. If the position of the drill bit is misaligned, the drill bit will push the drilling guide plate to move, causing the two valve clamps to separate and the valve on the valve clamps to disengage from the double-sided drilling machine. This achieves the purpose of automatically separating the valve when the drill bit is misaligned, avoiding the problem of damaging the valve during drilling. In addition, the guide plate can provide precise drilling guidance, limit the range of drill bit offset, and the lateral movement detection can stop the machine immediately when the coaxiality deviation exceeds the threshold to prevent the defect from expanding. Automatic unlocking avoids the generation of scrap products and protects the expensive valve body.

[0028] Furthermore, in this invention, by setting up a wear triggering mechanism, when the drill bit is reset, if the drill bit is excessively worn or broken, causing the detection top plate to lose support, the detection top frame will move under the tension of the contraction spring, which in turn will cause the push ring to move and drive multiple push columns to squeeze the drilling guide plate to move, thereby separating the valve from the valve fixture and achieving the purpose of removing the valve from the double-sided drilling machine. Therefore, by accurately detecting the position, it is ensured that each hole is processed in place, avoiding the problems of missed drilling and short drilling, effectively improving the yield rate and ensuring the processing quality of the valve.

[0029] Furthermore, in this invention, by setting up a linked chip removal mechanism, when the valve is separated from the valve fixture, the chip removal bar automatically resets, pushing away the waste chips on the valve fixture, thereby achieving the purpose of automatic chip removal and avoiding the problem of waste chips affecting the quality of the opening, thus further ensuring the processing quality of the valve. Attached Figure Description

[0030] Figure 1 A three-dimensional structural schematic diagram of a drilling machine for producing steam turbine valves provided in an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the connection between the adapter mounting base and the chip removal bar of a drilling machine for producing steam turbine valves, provided in an embodiment of the present invention.

[0032] Figure 3 This is a partial structural diagram illustrating the connection between the adapter mounting base and the testing mounting frame of a drilling machine for producing steam turbine valves, provided in an embodiment of the present invention.

[0033] Figure 4 This is a partial structural diagram of the connection between the extrusion separation rotor and the push bar of a drilling machine for producing steam turbine valves, provided in an embodiment of the present invention.

[0034] Figure 5 This is a partial cross-sectional view of the connection between the extrusion separation rotor and the transfer pusher of a drilling machine for producing steam turbine valves, as provided in an embodiment of the present invention.

[0035] Figure 6 This is a partial cross-sectional view of the connection between the adapter mounting base and the extrusion separation rotating rod of a drilling machine for producing steam turbine valves, as provided in an embodiment of the present invention.

[0036] Figure 7 This is a schematic diagram of the connection between the drilling guide plate and the mounting sleeve of a drilling machine for producing steam turbine valves, provided in an embodiment of the present invention.

[0037] Figure 8This is a partial structural diagram of the connection between the inspection and mounting frame and the mounting sleeve of a drilling machine for producing steam turbine valves, provided in an embodiment of the present invention.

[0038] Figure 9 This is a schematic diagram of the connection between the chip conveyor bar and the drive rotor of a drilling machine for producing steam turbine valves, provided in an embodiment of the present invention.

[0039] Figure 10 This is a partial cross-sectional view of the connection between the connecting seat and the transition column of a drilling machine for producing steam turbine valves, provided in an embodiment of the present invention.

[0040] Figure 11 This is a partial cross-sectional view of the connection between the sleeve drive frame and the lower pressure rod of a drilling machine for producing steam turbine valves, as provided in an embodiment of the present invention.

[0041] In the diagram: 1-Double-sided drilling machine; 2-Drilling slide; 3-Drill bit holder; 4-Drill bit; 5-Valve clamp; 6-Clamping cylinder; 7-Displacement separation mechanism; 701-Adapter mounting base; 702-Drilling guide plate; 703-Extrusion separation rotating rod; 704-Transfer push frame; 705-Push bar; 706-Separation rotating shaft; 707-Separation drive groove; 708-Restriction slide groove; 709-Return spring; 710-First rotating groove; 711-First torsion spring; 8-Wear triggering mechanism; 801-Detection mounting frame; 802-Mounting sleeve; 803-Detection top frame; 80 4-Detection top plate; 805-Contraction spring; 806-Extraction slide bar; 807-Adapter push rod; 808-Push ring; 809-Push column; 810-Adapter shaft; 9-Linkage chip removal mechanism; 901-Chip removal bar; 902-Connecting seat; 903-Drive rotating rod; 904-Chip removal rotating shaft; 905-Chip removal drive groove; 906-Second rotating groove; 907-Second torsion spring; 908-Adapter column; 909-Sleeve drive frame; 910-Pressing rod; 911-Redundant spring; 912-Drive arc groove; 913-Drive arc block; 10-Pressure seat. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0045] Furthermore, in the description of this invention, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] Furthermore, terms such as "horizontal," "vertical," and "perpendicular" do not imply that components must be absolutely vertical, but rather that they can be slightly tilted. For example, "vertical" simply means that its direction is more vertical relative to "horizontal," not that the structure must be completely vertical, but can be slightly tilted.

[0047] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] Please refer to the attached instruction manual. Figures 1-11 The present invention provides a drilling machine for producing steam turbine valves, which includes a double-sided drilling machine 1. The double-sided drilling machine 1 has two drilling slides 2 slidably installed. Drill bit seats 3 are installed on the drilling slides 2, and multiple drill bits 4 are installed on the drill bit seats 3. The double-sided drilling machine 1 is also equipped with two valve clamps 5 and a clamping cylinder 6. A clamping seat 10 is installed on the output shaft of the clamping cylinder 6.

[0049] Further, please refer to the appendix to the instruction manual. Figures 2-6The present invention provides a drilling machine for producing steam turbine valves, which further includes a misalignment separation mechanism 7. The misalignment separation mechanism 7 is installed on a double-sided drilling machine 1, and two valve clamps 5 are installed on the misalignment separation mechanism 7. The misalignment separation mechanism 7 is used to separate the two valve clamps 5. Specifically, the misalignment separation mechanism 7 includes two adapter mounting seats 701, both of which are installed on the double-sided drilling machine 1. The two valve clamps 5 are slidably installed on the two adapter mounting seats 701, and two intermediate transfer pushers 704 are slidably installed on the two adapter mounting seats 701. Each of the two intermediate transfer pushers 704 is equipped with a drilling guide plate 702. It should be noted that in this embodiment of the invention, if the position of the drill bit 4 is misaligned when the drill bit 4 contacts the drilling guide plate 702, the drill bit 4 will be unable to pass through the drilling guide plate 702 and push the drilling guide plate 702 to move, thereby causing the two valve clamps 5 to separate, so that the valve on the valve clamp 5 is detached from the double-sided drilling machine 1, thus achieving the purpose of automatically separating the valve when the drill bit 4 is misaligned, avoiding the problem of damaging the valve during drilling.

[0050] More specifically, in this embodiment of the invention, a wear triggering mechanism 8 is installed on the double-sided drilling machine 1. The wear triggering mechanism 8 is used to detect the length of the drill bit 4. The wear triggering mechanism 8 includes two detection mounting brackets 801, both of which are installed on the double-sided drilling machine 1. Multiple mounting sleeves 802 are installed circumferentially and equidistantly on the detection mounting brackets 801. A detection top frame 803 is movably installed on the mounting sleeve 802, and a detection top plate 804 is installed on the detection top frame 803. The detection top plate 804 contacts the drill bit 4 at the corresponding position. It should be noted that in this embodiment of the invention, when the drill bit 4 is reset, if the drill bit 4 is excessively worn or broken, causing the detection top plate 804 to lose support, the purpose of separating the valve from the valve clamp 5 can still be achieved, further avoiding the problem of unqualified valve processing caused by damage to the drill bit 4.

[0051] Please continue to refer to the instruction manual appendix. Figures 2-6 Furthermore, the drilling machine equipment for producing steam turbine valves provided in this embodiment of the invention includes a misalignment separation mechanism 7 that further includes four extrusion separation rotating rods 703, with two extrusion separation rotating rods 703 located on the same side being rotatably mounted on a transition mounting base 701;

[0052] Furthermore, two separation shafts 706 are mounted on the extrusion separation rod 703, and a separation drive groove 707 is provided on the valve clamp 5. One separation shaft 706 is movably installed in the separation drive groove 707. It should be noted that, in this embodiment of the invention, when the extrusion separation rod 703 rotates, it drives the valve clamp 5 to move through the other separation shaft 706, and the separation shaft 706 slides in the separation drive groove 707, thereby achieving the purpose of separating the two valve clamps 5.

[0053] More specifically, in this embodiment of the invention, a connecting mounting base 701 has two first rotating grooves 710, and another separating rotating shaft 706 is rotatably mounted in the first rotating groove 710; in addition, a first torsion spring 711 is installed on the inner wall of the first rotating groove 710, and the first torsion spring 711 is mounted on the separating rotating shaft 706. It should be noted that, in this embodiment of the invention, the rotation of the pressing separating rotating rod 703 drives the separating rotating shaft 706 to rotate in the first rotating groove 710, and causes the first torsion spring 711 to be stressed. Therefore, under the rotational force of the first torsion spring 711, it can help the pressing separating rotating rod 703 to reset.

[0054] More specifically, in this embodiment of the invention, a transfer mounting base 701 has two limiting grooves 708. A pusher bar 705 is slidably installed in the limiting groove 708, and the pusher bar 705 is mounted on the transfer push frame 704. A return spring 709 is installed on the inner wall of the limiting groove 708, and the return spring 709 is mounted on the pusher bar 705. It should be noted that, in this embodiment of the invention, when the transfer push frame 704 moves, it drives the two pusher bars 705 to slide horizontally in the two limiting grooves 708, and causes the two return springs 709 to be stressed, thereby achieving the purpose of horizontal movement of the drilling guide plate 702 through the transfer push frame 704.

[0055] Please refer to the instruction manual attached. Figures 2-3 and Figures 7-8 Furthermore, the drilling machine equipment for producing steam turbine valves provided in this embodiment of the invention includes a wear triggering mechanism 8 that further includes two push rings 808, and multiple mounting sleeves 802 located on the same side are slidably mounted with pull-out slides 806, and the push rings 808 are mounted on multiple pull-out slides 806 located on the same side.

[0056] Furthermore, multiple push posts 809 are equidistantly mounted in a ring on the push ring 808, and the push posts 809 are in contact with the drilling guide plate 702. It should be noted that, in this embodiment of the invention, when the detection top plate 804 loses support, causing the detection top frame 803 to move, the detection top frame 803 drives the pull-out slide 806 to be pulled out, causing the pull-out slide 806 to drive the push ring 808 to move. The movement of the push ring 808 causes the multiple push posts 809 to press against and move the drilling guide plate 702, thus achieving the purpose of triggering the movement of the drilling guide plate 702 when the drill bit 4 is damaged.

[0057] More specifically, in this embodiment of the invention, a transition push rod 807 is rotatably mounted between the detection top frame 803 and the extraction slide bar 806, and a contraction spring 805 is installed between the detection top frame 803 and the mounting sleeve 802; two transition shafts 810 are rotatably mounted on the transition push rod 807, and the two transition shafts 810 are respectively mounted on the detection top frame 803 and the extraction slide bar 806. It should be noted that, in this embodiment of the invention, when the detection top frame 803 moves, the detection top frame 803 drives the two transition push rods 807 to move through the two transition shafts 810, and the movement of the two transition push rods 807 drives the extraction slide bar 806 to be extracted through the other two transition shafts 810, thereby achieving the purpose of driving the extraction slide bar 806 to move horizontally when the detection top frame 803 moves.

[0058] Please refer to the instruction manual attached. Figures 2-3 and Figures 9-11 Furthermore, the drilling machine equipment for producing steam turbine valves provided in this embodiment of the invention also includes two linked chip removal mechanisms 9. The two linked chip removal mechanisms 9 are respectively installed on two valve clamps 5, and are used to remove chips from the valve clamps 5. Specifically, each linked chip removal mechanism 9 includes a chip removal bar 901, which is slidably installed on the valve clamp 5. The movement of the chip removal bar 901 pushes away the waste chips on the valve clamp 5. It should be noted that, in this embodiment of the invention, when the valve is disengaged from the two valve clamps 5, the drive rod 903 causes the chip removal bar 901 to move, pushing away the waste chips on the valve clamp 5, thus achieving automatic chip removal.

[0059] More specifically, in this embodiment of the invention, a connecting seat 902 is installed on the valve clamp 5, a drive rod 903 is rotatably installed on the connecting seat 902, two chip removal shafts 904 are installed on the drive rod 903, a chip removal bar 901 has a chip removal driving groove 905, and one chip removal shaft 904 is movably installed in the chip removal driving groove 905.

[0060] Furthermore, a second rotating groove 906 is provided on the connecting seat 902, and another chip removal rotating shaft 904 is rotatably installed in the second rotating groove 906. A second torsion spring 907 is installed on the inner wall of the second rotating groove 906, and the second torsion spring 907 is installed on the chip removal rotating shaft 904. It should be noted that, in this embodiment of the invention, when the valve is placed on the two valve clamps 5, the two pressing rods 910 are pressed to move, causing the pressing rods 910 to drive the sleeve drive frame 909 to move. The movement of the sleeve drive frame 909 drives the adapter column 908 to rotate. The rotation of the adapter column 908 drives the drive rod 903 to rotate. The drive rod 903 rotates in the second rotating groove 906 through a chip removal rotating shaft 904, and causes the second torsion spring 907 to be stressed. At the same time, the rotation of the drive rod 903 drives the chip removal strip 901 to move through the other chip removal rotating shaft 904, so that the chip removal strip 901 automatically retracts when the valve is placed.

[0061] Please continue to refer to the instruction manual appendix. Figures 2-3 and Figures 9-11 More specifically, in this embodiment of the invention, a transition post 908 is installed on the bottom side of the drive rod 903, and a connecting drive frame 909 is movably sleeved on the transition post 908. The connecting drive frame 909 is slidably installed on the double-sided drilling machine 1.

[0062] Furthermore, a downward pressing rod 910 is movably mounted on the sleeve drive frame 909, and a redundant spring 911 is installed between the sleeve drive frame 909 and the downward pressing rod 910. It should be noted that, in this embodiment of the invention, when the valve is continuously pressed down by the clamping seat 10, the downward pressing rod 910 moves upward on the sleeve drive frame 909, causing the redundant spring 911 to be stressed, without affecting the clamping of the valve.

[0063] More specifically, in this embodiment of the invention, the adapter post 908 is provided with a driving arc-shaped groove 912, and a driving arc-shaped block 913 is movably installed within the driving arc-shaped groove 912. The driving arc-shaped block 913 is installed on the inner wall of the sleeve driving frame 909. It should be noted that, in this embodiment of the invention, when the sleeve driving frame 909 moves, the driving arc-shaped block 913 is simultaneously driven to move within the driving arc-shaped groove 912, thereby achieving the purpose of driving the adapter post 908 to rotate.

[0064] In summary, the working principle of the drilling machine for producing steam turbine valves provided in this embodiment of the invention is as follows:

[0065] When drilling the valve, the valve is placed on two valve clamps 5, and the valve is pressed by the clamping cylinder 6 driving the clamping seat 10. At this time, the two drilling slides 2 are moved, so that the drilling slides 2 drive multiple drill bits 4 to drill the valve through the drill bit seat 3.

[0066] Furthermore, the drill bit 4 first contacts the drilling guide plate 702. If the position of the drill bit 4 is misaligned, it will push the drilling guide plate 702 to move. The drilling guide plate 702 drives the transfer pusher 704 to move. The movement of the transfer pusher 704 drives the two push bars 705 to move. The push bars 705 slide horizontally within the limiting groove 708, causing the return spring 709 to be stressed. The movement of the push bars 705 pushes the extrusion separation rotor 703 to rotate. The rotation of the extrusion separation rotor 703 drives... A separating shaft 706 rotates within the first rotating groove 710, causing the first torsion spring 711 to be stressed. Simultaneously, it compresses the separating rod 703, causing it to rotate and drive the valve clamp 5 to move via another separating shaft 706. The separating shaft 706 slides within the separating drive groove 707. It should be noted that when the two valve clamps 5 separate, the valve on the valve clamp 5 is disengaged from the double-sided drilling machine 1, achieving the purpose of automatically separating the valve when the drill bit 4 is misaligned, thus avoiding damage to the valve during drilling.

[0067] It should be further explained that when the drill bit 4 is reset, if the drill bit 4 is excessively worn or broken, causing the detection top plate 804 to lose support, the detection top frame 803 will move under the contraction force of the contraction spring 805. The movement of the detection top frame 803 will drive the two adapter rods 807 to move through the two adapter shafts 810. The movement of the two adapter rods 807 will drive the extraction slide 806 to be extracted through the other two adapter shafts 810. The extraction slide 806 will drive the push ring 808 to move. The movement of the push ring 808 will drive multiple push columns 809 to press the drilling guide plate 702 to move, thereby separating the valve from the valve clamp 5 and detaching the valve from the double-sided drilling machine 1, thus avoiding the problem of unqualified valve processing caused by the damage of the drill bit 4.

[0068] Furthermore, when the valve is placed on the two valve clamps 5, the two pressing rods 910 are pressed and moved, causing the pressing rods 910 to drive the sleeve drive frame 909 to move. The movement of the sleeve drive frame 909 drives the arc block 913 to move within the drive arc groove 912, thereby driving the adapter column 908 to rotate. The rotation of the adapter column 908 drives the drive rod 903 to rotate. The drive rod 903 rotates within the second rotating groove 906 via a chip removal shaft 904, causing the second torsion spring 907 to rotate. Under force, the rotating rod 903 is driven to rotate, which in turn drives the chip removal bar 901 to move through another chip removal shaft 904. This achieves the purpose of the chip removal bar 901 automatically retracting when the valve is placed, and automatically resetting when the valve is removed, pushing away the waste chips on the valve clamp 5, thus achieving the purpose of automatic chip removal. In addition, when the valve is continuously squeezed and moved downward by the clamping seat 10, the downward pressing rod 910 moves upward on the sleeve drive frame 909, and the redundant spring 911 is subjected to force, without affecting the clamping of the valve.

[0069] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A drilling machine for producing steam turbine valves, characterized in that, It includes a double-sided drilling machine, which has two drilling slides slidably mounted on them. A drill bit seat is mounted on the drilling slide and a plurality of drill bits are mounted on the drill bit seat. The double-sided drilling machine is also equipped with two valve clamps and a clamping cylinder. A clamping seat is mounted on the output shaft of the clamping cylinder. It also includes a misalignment separation mechanism, which is mounted on the double-sided drilling machine. The two valve clamps are mounted on the misalignment separation mechanism, which is used to separate the two valve clamps. The misalignment separation mechanism includes two adapter mounting seats, both of which are mounted on the double-sided drilling machine. The two valve clamps are slidably mounted on the two adapter mounting seats, and two intermediate transfer pushers are slidably mounted on the two adapter mounting seats. Each of the two intermediate transfer pushers is equipped with a drilling guide plate. The double-sided drilling machine is equipped with a wear triggering mechanism for detecting the length of the drill bit. The wear triggering mechanism includes two detection mounting frames, both of which are mounted on the double-sided drilling machine. Multiple mounting sleeves are equidistantly mounted in a ring on each detection mounting frame. A detection top frame is movably mounted on each mounting sleeve, and a detection top plate is mounted on the detection top frame. The detection top plate contacts the drill bit at the corresponding position. The misalignment separation mechanism also includes four extrusion separation rotating rods, with two of the extrusion separation rotating rods located on the same side being rotatably mounted on one of the adapter mounting bases; Two separation shafts are installed on the extrusion separation rotating rod, and a separation driving groove is opened on the valve clamp, with one of the separation rotating shafts movably installed in the separation driving groove; One of the adapter mounting bases has two first rotating slots, and the other separation rotating shaft is rotatably mounted in the first rotating slot; A first torsion spring is installed on the inner wall of the first rotating groove, and the first torsion spring is mounted on the separating rotating shaft; Two limiting grooves are provided on one of the adapter mounting bases, and a push bar is slidably installed in the limiting grooves. The push bar is installed on the transfer push frame. A push spring is installed on the inner wall of the limiting groove, and the push spring is mounted on the push bar; The wear triggering mechanism also includes two push rings, and multiple mounting sleeves located on the same side are slidably mounted with pull-out slides, and the push rings are mounted on multiple pull-out slides located on the same side; Multiple push columns are installed equidistantly in a ring on the push ring, and the push columns are in contact with the drilling guide plate; A transition push rod is rotatably installed between the detection top frame and the extraction slide bar, and a retraction spring is installed between the detection top frame and the mounting sleeve; Two adapter shafts are rotatably mounted on the adapter push rod, and the two adapter shafts are respectively mounted on the detection top frame and the extraction slide bar.

2. A machine tool for producing a valve for a steam turbine according to claim 1, characterized in that It also includes two linked chip removal mechanisms, which are respectively installed on the two valve clamps. The linked chip removal mechanisms are used to remove chips from the valve clamps. The linked chip removal mechanism includes a chip removal bar, which is slidably mounted on the valve clamp. The chip removal bar moves to push away the waste chips on the valve clamp.

3. A machine tool for producing a valve for a steam turbine according to claim 2, characterized in that The valve clamp is equipped with a connecting seat, a drive rod is rotatably mounted on the connecting seat, two chip removal shafts are mounted on the drive rod, the chip removal bar is provided with a chip removal drive groove, and one of the chip removal shafts is movably mounted in the chip removal drive groove. The connecting seat has a second rotating groove, and another chip removal shaft is rotatably installed in the second rotating groove. A second torsion spring is installed on the inner wall of the second rotating groove and is installed on the chip removal shaft.

4. A machine tool according to claim 3, wherein A transition post is installed on the bottom side of the drive rod, and a connecting drive frame is movably sleeved on the transition post. The connecting drive frame is slidably installed on the double-sided drilling machine. A downward pressure rod is movably mounted on the sleeve drive frame, and a redundant spring is installed between the sleeve drive frame and the downward pressure rod.

5. A machine tool for producing a valve for a steam turbine according to claim 4, characterized in that The adapter column is provided with a drive arc groove, and a drive arc block is movably installed in the drive arc groove. The drive arc block is installed on the inner wall of the sleeve drive frame.

Citation Information

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