End face drilling device for steam turbine blade machining

Abstract

This application relates to an end-face drilling device for steam turbine blade processing, belonging to the technical field of steam turbine blade processing. It includes a frame, with a drilling machine installed beside the frame. A circular loading and unloading mechanism is mounted on the frame, comprising a circular conveyor line. Clamping components for holding steam turbine blades are evenly installed on the conveyor line. Each clamping component includes a base, a positioning block, a push-pull quick-release clamp, and a pressure block. The positioning block is fixed to the base, and a positioning groove is formed on its surface. Push-pull quick-release clamps are symmetrically arranged on both sides of the positioning block. This application features a high degree of automation. By using the circular loading and unloading mechanism in conjunction with the drilling machine, the operator only needs to perform loading and unloading actions. The circular conveyor line can sequentially transport the blades to the drilling machine for drilling, enabling continuous drilling and greatly improving production efficiency.

Description

Technical Field

[0001] This application relates to the technical field of turbine blade processing, and in particular to an end face drilling device for turbine blade processing. Background Technology

[0002] Currently, such as Figure 1 The turbine blade body 1 shown includes a main shaft 11 and a blade 12. The blade and the main shaft are connected by pins, and a pin hole 121 is provided on the end face of the blade root.

[0003] In the prior art, when processing the pin hole, the blade is usually fixed to the fixture at the bottom of the drilling machine by hand, and then the hole is drilled. After the hole is drilled, the blade needs to be removed from the fixture, a new blade needs to be placed, and then the hole is drilled again. This method cannot achieve continuous drilling and has low processing efficiency. Utility Model Content

[0004] The purpose of this application is to provide an end face drilling device for turbine blade processing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides a drilling device for the end face of turbine blades, which adopts the following technical solution: A turbine blade end face drilling device includes a frame, a drilling machine is arranged next to the frame, and an annular circulating loading and unloading mechanism is arranged on the frame. The annular circulating loading and unloading mechanism includes an annular conveyor line, and clamping components for clamping turbine blades are evenly installed on the annular conveyor line. The clamping components include a base, a positioning block, a push-pull quick clamp, and a pressure block. The positioning block is fixed on the base, and a positioning groove is formed on the surface of the positioning block. Push-pull quick clamps are symmetrically arranged on both sides of the positioning block. The pressure block is fixed on the push-pull quick clamp, and a limiting protrusion is provided on the surface of the pressure block. The limiting protrusion includes a first right-angled trapezoidal segment and a second right-angled trapezoidal segment.

[0006] The circular conveyor line includes a circular frame, a circular guide rail, a drive wheel, a driven wheel, a belt, and several sliders. The circular frame is fixed on the machine frame. The circular guide rail, drive wheel, and driven wheel are all mounted on the circular frame. A belt connects the drive wheel and the driven wheel. Several sliders are evenly fixed on the belt. The sliders are slidably connected to the circular guide rail. The base is fixed on the sliders. A reduction motor is connected to the bottom of the drive wheel.

[0007] Preferably, a limiting mechanism is also provided on the side of the annular frame near the drilling machine. The limiting mechanism includes a cylinder, a rotating rod, a connecting rod, and a limiting rod. The rotating rod is rotatably disposed on the side of the annular frame. The cylinder is hinged to the bottom of the annular frame. The output end of the cylinder is hinged to a connecting rod. One end of the connecting rod is fixed to the rotating rod. Multiple limiting rods are evenly fixed on the rotating rod. The slider is provided with a slot corresponding to the position of the limiting rod.

[0008] By adopting the above technical solution, the cylinder in the limiting mechanism pushes the rotating rod to rotate through the connecting rod, and the limiting rod on the rotating rod can be locked into the slot, thereby limiting the slider and making the blade stay smoothly next to the drilling machine for drilling work.

[0009] The surfaces of the first and second right-angled trapezoidal segments are provided with wear-resistant coatings.

[0010] The drilling machine is a CNC drilling machine, and a control box is installed on the machine frame. The drilling machine, the geared motor and the cylinder are all connected to the control box.

[0011] In summary, this application includes at least one of the following beneficial technical effects: the end face drilling device for turbine blade processing has a high degree of automation. By setting up a ring-shaped circulating loading and unloading mechanism in conjunction with the drilling machine, the operator only needs to perform loading and unloading actions. The ring conveyor line can sequentially transport the blades to the drilling machine for drilling, which can realize continuous drilling and greatly improve production efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure used in the prior art to represent the main body of a steam turbine blade.

[0013] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application.

[0014] Figure 3 This is a schematic diagram illustrating the structure of the clamping component in the embodiments of this application.

[0015] Figure 4 These are schematic diagrams of the structure from different perspectives of embodiments of this application.

[0016] Figure 5 yes Figure 4 Enlarged view of section A.

[0017] Explanation of reference numerals in the attached drawings: 2. Frame; 3. Drilling machine; 4. Circular conveyor line; 41. Circular frame; 42. Circular guide rail; 43. Drive wheel; 44. Driven wheel; 45. Belt; 46. Slider; 461. Slot; 5. Clamping assembly; 51. Base; 52. Positioning block; 521. Positioning groove; 53. Push-pull quick clamp; 54. Pressure block; 541. Limiting protrusion; 5411. First right-angled trapezoidal segment; 5412. Second right-angled trapezoidal segment; 6. Limiting mechanism; 61. Cylinder; 62. Rotating rod; 63. Connecting rod; 64. Limiting rod; 7. Control box; 8. Proximity sensor; 9. Control switch. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 2-5 This application will be described in further detail.

[0019] This application discloses an end face drilling device for turbine blade machining, referring to... Figure 2-5 The device includes a frame 2, a drilling machine 3 located beside the frame 2, and a circular circulating loading and unloading mechanism on the frame 2. The circular circulating loading and unloading mechanism includes a circular conveyor line 4, on which clamping components 5 for clamping turbine blades are evenly installed. The clamping components 5 include a base 51, a positioning block 52, a push-pull quick clamp 53, and a pressure block 54. The positioning block 52 is fixed on the base 51, and a positioning groove 521 is opened on the surface of the positioning block 52. Push-pull quick clamps 53 are symmetrically arranged on both sides of the positioning block 52. The pressure block 54 is fixed on the push-pull quick clamp 53. The surface of the pressure block 54 is provided with a limiting protrusion 541, which includes a first right-angled trapezoidal segment 5411 and a second right-angled trapezoidal segment 5412. The surfaces of the first right-angled trapezoidal segment 5411 and the second right-angled trapezoidal segment 5412 are provided with a wear-resistant coating.

[0020] Reference Figure 2 The circular conveyor line 4 includes a circular frame 41, a circular guide rail 42, a driving wheel 43, a driven wheel 44, a belt 45, and several sliders 46. The circular frame 41 is fixed on the frame 2. The circular guide rail 42, the driving wheel 43, and the driven wheel 44 are all mounted on the circular frame 41. A belt 45 connects the driving wheel 43 and the driven wheel 44. Several sliders 46 are evenly fixed on the belt 45. The sliders 46 are slidably connected to the circular guide rail 42. The base 51 is fixed on the sliders 46. A reduction motor (not shown in the figure) is connected to the bottom of the driving wheel 43. Reference Figure 4-5A limiting mechanism 6 is also provided on the side of the ring frame 41 near the drilling machine 3. The limiting mechanism 6 includes a cylinder 61, a rotating rod 62, a connecting rod 63, and a limiting rod 64. The rotating rod 62 is rotatably mounted on the side of the ring frame 41. The cylinder 61 is hinged to the bottom of the ring frame 41. The output end of the cylinder 61 is hinged to the connecting rod 63. One end of the connecting rod 63 is fixed to the rotating rod 62. Multiple limiting rods 64 are evenly fixed on the rotating rod 62. The slider 46 is provided with a slot 461 corresponding to the position of the limiting rod 64.

[0021] By setting a limiting mechanism 6, the cylinder 61 in the limiting mechanism 6 pushes the rotating rod 62 to rotate through the connecting rod 63. The limiting rod 64 on the rotating rod 62 can be locked into the slot 461, thereby limiting the slider 46 and making the blade stay smoothly next to the drilling machine 3 so as to carry out drilling work.

[0022] The drilling machine 3 is a CNC drilling machine, and a control box 7 is installed on the frame 2. The drilling machine 3, the geared motor and the cylinder 61 are all connected to the control box 7. The control box 7 is equipped with a PLC programmable logic controller. A proximity sensor 8 is installed on the frame 2 above the front side of the drilling machine 3. The proximity sensor 8 is electrically connected to the PLC programmable logic controller. A control switch 9 is also installed on the frame 2.

[0023] The implementation principle of the end face drilling device for turbine blade processing in this application embodiment is as follows: One of the circular conveyor lines 4 is a loading and unloading station. During operation, the operator loads and unloads materials at this station. When loading, the blade root is inserted along the positioning groove 521, and the push-pull quick clamps 53 on both sides are moved. The push-pull quick clamps 53 push the pressure block 54 to press it on the blade. The two pressure blocks 54 push and fix the blade from the blade root. After that, the operator presses the control switch 9, and the circular conveyor line 4 drives the blade to move once. After the proximity sensor 8 detects the blade, the PLC programmable logic controller controls the drilling machine 3 to work. The drilling machine 3 drills a hole at the blade root.

[0024] During the drilling process, workers remove the drilled blades at the loading and unloading stations and replace them with new blades. This process is repeated to achieve continuous drilling, which greatly improves production efficiency.

[0025] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A face drilling device for turbine blade machining, comprising a frame (2) next to which a drilling machine (3) is arranged, characterized in that: The frame (2) is provided with a ring-shaped circulating loading and unloading mechanism, which includes a ring conveyor line (4). The ring conveyor line (4) is uniformly equipped with clamping components (5) for clamping turbine blades. The clamping components (5) include a base (51), a positioning block (52), a push-pull quick clamp (53), and a pressure block (54). The positioning block (52) is fixed on the base (51). The positioning block (52) has a positioning groove (521) on its surface. The positioning block (52) is symmetrically provided with push-pull quick clamps (53) on both sides. The pressure block (54) is fixed on the push-pull quick clamp (53). The pressure block (54) has a limiting protrusion (541) on its surface. The limiting protrusion (541) includes a first right-angled trapezoidal segment (5411) and a second right-angled trapezoidal segment (5412).

2. The end face drilling apparatus for turbine blade machining according to claim 1, characterized by: The annular conveyor line (4) includes an annular frame (41), an annular guide rail (42), a drive wheel (43), a driven wheel (44), a belt (45), and several sliders (46). The annular frame (41) is fixed on the frame (2). The annular guide rail (42), the drive wheel (43), and the driven wheel (44) are all mounted on the annular frame (41). A belt (45) connects the drive wheel (43) and the driven wheel (44). Several sliders (46) are evenly fixed on the belt (45). The sliders (46) are slidably connected to the annular guide rail (42). The base (51) is fixed on the sliders (46). A reduction motor is connected to the bottom of the drive wheel (43).

3. The end face drilling apparatus for turbine blade machining according to claim 2, characterized by: A limiting mechanism (6) is also provided on the side of the ring frame (41) near the drilling machine (3). The limiting mechanism (6) includes a cylinder (61), a rotating rod (62), a connecting rod (63), and a limiting rod (64). The rotating rod (62) is rotatably disposed on the side of the ring frame (41). The cylinder (61) is hinged to the bottom of the ring frame (41). The output end of the cylinder (61) is hinged to the connecting rod (63). One end of the connecting rod (63) is fixed on the rotating rod (62). A plurality of limiting rods (64) are evenly fixed on the rotating rod (62). The slider (46) is provided with a slot (461) corresponding to the position of the limiting rod (64).

4. The end face drilling apparatus for turbine blade machining according to Claim 1, characterized by: The surfaces of the first right-angled trapezoidal segment (5411) and the second right-angled trapezoidal segment (5412) are provided with a wear-resistant coating.

5. The end face drilling apparatus for turbine blade machining according to claim 3, characterized by: The drilling machine (3) is a CNC drilling machine, and a control box (7) is provided on the frame (2). The drilling machine (3), the reduction motor and the cylinder (61) are all connected to the control box (7).

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