Turbine blade clamp

Abstract

This utility model discloses a turbine blade clamp, including a base plate and a movable end clamping device and a fixed end clamping device disposed on the base plate. The fixed end clamping device is fixed to one side of the base plate, and the movable end clamping device is movable to the other side, able to move closer to or further away from the fixed end clamping device. The turbine blade is clamped at both ends by the fixed end clamping device and the movable end clamping device respectively: the movable end is fixed at one end by a first front-end clamping assembly, a first rear-end clamping assembly, a first top clamping assembly, and a bottom support assembly; the fixed end is fixed at the other end by a second front-end clamping assembly, a second rear-end clamping assembly, a second top clamping assembly, and a bottom support assembly. This clamp uses multiple components to ensure stable clamping, ensuring the blade's stable position and improving machining accuracy. Simultaneously, the movable end's distance from the fixed end is adjustable to accommodate blades of different lengths, enhancing the clamp's flexibility and applicability.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a turbine blade clamp. Background Technology

[0002] Steam turbine blades are critical components with complex shapes and extremely high precision requirements. During processing, appropriate fixtures are needed to hold the blades in place to ensure their positional stability, thereby enabling grinding, milling, polishing, and other processing of the blades.

[0003] However, existing clamps are only suitable for clamping turbine blades of one length and cannot be matched and clamped for turbine blades of multiple lengths. To match the clamping of turbine blades of different lengths, different sizes of clamps must be used, resulting in poor applicability and poor economic efficiency. Utility Model Content

[0004] This invention provides a turbine blade clamp to overcome the above-mentioned problems.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A turbine blade clamp includes a base plate and a movable end clamping device and a fixed end clamping device disposed on the base plate; The fixed end clamping device is fixedly disposed on one side of the base plate, and the movable end clamping device is movably disposed on the other side of the base plate and can move towards or away from the fixed end clamping device. One end of the turbine blade is mounted on the moving end clamping device, and this end can be clamped and fixed by the first front end clamping component, the first rear end clamping component, the first top clamping component, and the bottom support component of the moving end clamping device; the other end of the turbine blade is mounted on the fixed end clamping device, and this end can be clamped and fixed by the second front end clamping component, the second rear end clamping component, the second top clamping component, and the bottom support component of the fixed end clamping device.

[0006] Furthermore, the mobile clamping device includes a first base, which is slidably disposed on the base plate; the first front clamping assembly and the first rear clamping assembly are respectively disposed on the front and rear sides of the first base; The first front-end clamping assembly includes a first hydraulic cylinder, a first pressure plate, and a first pressure block. The first hydraulic cylinder is mounted on the first base. One end of the first pressure plate is connected to the piston end of the first hydraulic cylinder. The other end of the first pressure plate is fixed with the first pressure block. The first hydraulic cylinder can drive the first pressure block to move to abut against the front side of the turbine blade. The first pressure block cooperates with the first rear-end clamping assembly on the rear side of the turbine blade to clamp the turbine blade. The first rear clamping assembly includes a screw seat disposed on the first base and a screw disposed on the screw seat with its end extending out of the screw seat. The end of the screw facing the first pressure plate can abut against the rear side of the turbine blade.

[0007] Furthermore, the bottom support assembly includes an adjustment plate and a bottom support block. The adjustment plate has an elongated hole along the vertical direction, through which bolts can pass to fix the adjustment plate to the side wall of the first base. The adjustment plate can move vertically on the first base after the bolts are loosened to adjust the top height of the adjustment plate. The top of the adjustment plate abuts against the bottom of the turbine blade. The bottom support block is disposed on the adjustment plate, and the top of the bottom support block abuts against the lower side of the end of the turbine blade. The first top clamping assembly includes a second hydraulic cylinder, a second pressure plate, and a second pressure block. The second hydraulic cylinder is disposed on the first base. One end of the second pressure plate is connected to the piston end of the second hydraulic cylinder. The other end of the second pressure plate is fixed with a second pressure block for cooperating with the adjusting plate and the bottom support block to clamp the turbine blades in the vertical direction.

[0008] Furthermore, the fixed-end clamping device includes a second base fixed on the base plate, and the second front-end clamping assembly and the second rear-end clamping assembly are respectively disposed on the front and rear sides of the second base; The second front-end clamping assembly includes a third hydraulic cylinder, a third pressure plate, and a third pressure block. The third hydraulic cylinder is mounted on the second base. One end of the third pressure plate is connected to the piston end of the third hydraulic cylinder, and the other end of the third pressure plate is fixed with the third pressure block. The third hydraulic cylinder can drive the third pressure block to move to abut against the front side of the turbine blade. The third pressure block cooperates with the second rear-end clamping assembly on the rear side of the turbine blade to clamp the turbine blade. The second rear clamping assembly includes a support base disposed on the second base and a support platform disposed on the support base, wherein the platform surface facing the third pressure plate can abut against the rear side of the turbine blade.

[0009] Furthermore, the bottom support assembly includes a support platform disposed on the support base for supporting the bottom end of the turbine blade; The second top clamping assembly includes a fourth hydraulic cylinder, a fourth pressure plate, and a fourth pressure block. The fourth hydraulic cylinder is mounted on the second base. One end of the fourth pressure plate is connected to the piston end of the fourth hydraulic cylinder. The other end of the fourth pressure plate is fixed with the fourth pressure block, which is used to cooperate with the support platform to clamp the turbine blades in the vertical direction.

[0010] Furthermore, the fixed end clamping device also includes a positioning block disposed on the second base, the positioning block having positioning protrusions for positioning and limiting the end of the turbine blade.

[0011] Furthermore, a clamping assembly is provided on the side of the first base away from the fixed end clamping device. The clamping assembly includes a clamping cylinder and a clamping block. The clamping cylinder can drive the clamping block away from the positioning block, so that the clamping block engages with the positioning protrusion on the positioning block to clamp and fix the turbine blade in the length direction.

[0012] Furthermore, the base plate is also provided with a cable chain power unit for driving the movement of the first base.

[0013] Furthermore, it also includes an oil distribution block, which is fixed to the side of the first base and has an oil passage for supplying oil to the first oil cylinder, the second oil cylinder, the third oil cylinder and the fourth oil cylinder.

[0014] Furthermore, both the first base and the second base are provided with guide plates on their sides for collecting the waste chips from the turbine blade processing.

[0015] The beneficial effects of this utility model are: This utility model discloses a turbine blade clamp, in which both ends of the turbine blade are clamped and fixed by a movable end clamping device and a fixed end clamping device, respectively. A first front-end clamping component, a first rear-end clamping component, a first top clamping component, and a bottom support component work together to clamp and fix one end of the turbine blade. A second front-end clamping component, a second rear-end clamping component, a second top clamping component, and a bottom support component work together to clamp and fix one end of the turbine blade, ensuring clamping stability and thus ensuring the positional stability of the turbine blade, thereby improving machining accuracy. At the same time, the movable end clamping device is designed to be movable, and its distance from the fixed end clamping device can be adjusted to adapt to the clamping requirements of turbine blades of different lengths and specifications, greatly improving the flexibility and applicability of the clamp and improving economic efficiency. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a turbine blade clamp structure disclosed in an embodiment of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of a turbine blade clamp structure disclosed in an embodiment of the present utility model. Figure 2 ; Figure 3 This is a schematic diagram of the main structure of a turbine blade clamp disclosed in an embodiment of the present utility model; Figure 4 This is a side view of a turbine blade clamp disclosed in an embodiment of the present utility model; Figure 5 This is a top view schematic diagram of a turbine blade clamp disclosed in an embodiment of the present utility model; Figure 6 This is a schematic diagram of a turbine blade clamp with turbine blades installed in an embodiment of the present invention.

[0017] In the picture: 1. Base plate; 11. Slide groove; 2. Mobile end clamping device; 21. First front-end clamping assembly; 211. First hydraulic cylinder; 212. First pressure plate; 213. First pressure block; 22. First rear end clamping assembly; 221. Screw seat; 222. Screw; 23. First top clamping assembly; 231. Second hydraulic cylinder; 232. Second pressure plate; 233. Second pressure block; 24. Bottom support assembly; 241. Adjustment plate; 242. Bottom support block; 25. First base; 26. Push-tightening assembly; 261. Push-tightening cylinder; 262. Push-tightening block; 27. Transition plate; 28. Slider; 3. Fixed-end clamping device; 31. Second front-end clamping assembly; 311. Third hydraulic cylinder; 312. Third pressure plate; 313. Third pressure block; 32. Second rear clamping assembly; 321. Support base; 322. Support platform; 33. Second top clamping assembly; 331. Fourth hydraulic cylinder; 332. Fourth pressure plate; 333. Fourth pressure block; 34. Bottom support assembly; 341. Support platform; 35. Second base; 36. Positioning block; 361. Positioning protrusion; 4. Steam turbine blades; 5. Cable chain power unit; 51. Cable chain body; 52. Nut seat; 6. Separate oil blocks; 7. Oil separator protective cover; 8. Material guide plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Example: like Figure 1-5 The image shows a turbine blade clamp provided in this embodiment, including a base plate 1 and a movable end clamping device 2 and a fixed end clamping device 3 disposed on the base plate 1; The fixed end clamping device 3 is fixedly disposed on one side of the base plate 1, and the movable end clamping device 2 is movably disposed on the other side of the base plate 1 and can move towards or away from the fixed end clamping device 3. One end of the turbine blade 4 is mounted on the moving end clamping device 2, and this end can be clamped and fixed by the first front end clamping component 21, the first rear end clamping component 22, the first top clamping component 23, and the bottom support component 24 of the moving end clamping device 2; the other end of the turbine blade is mounted on the fixed end clamping device 3, and this end can be clamped and fixed by the second front end clamping component 31, the second rear end clamping component 32, the second top clamping component 33, and the bottom support component 34 of the fixed end clamping device 3.

[0020] This utility model discloses a turbine blade clamp. The turbine blade is clamped and fixed at both ends by a movable end clamping device and a fixed end clamping device, respectively. A first front-end clamping component, a first rear-end clamping component, a first top clamping component, and a bottom support component work together to clamp and fix one end of the turbine blade. A second front-end clamping component, a second rear-end clamping component, a second top clamping component, and a bottom support component work together to clamp and fix one end of the turbine blade, ensuring clamping stability and thus guaranteeing the positional stability of the turbine blade, thereby improving processing accuracy. Simultaneously, the movable end clamping device is designed to be movable, allowing adjustment of its distance from the fixed end clamping device to adapt to the clamping requirements of turbine blades of different lengths, greatly improving the flexibility and applicability of the clamp. One device can clamp turbine blades of different lengths, resulting in good economic benefits. Furthermore, the position adjustment of the movable end clamping device is convenient, improving clamping (processing) efficiency.

[0021] In a specific embodiment, the mobile end clamping device 2 includes a first base 25, which is slidably disposed on the base plate 1; the first front end clamping component 21 and the first rear end clamping component 22 are respectively disposed on the front and rear sides of the first base 25, that is, the first front end clamping component 21 and the first rear end clamping component 22 clamp the turbine blade from the front and rear sides of the turbine blade end respectively; The first front-end clamping assembly 21 includes a first hydraulic cylinder 211, a first pressure plate 212, and a first pressure block 213. The first hydraulic cylinder 211 is mounted on the first base 25. One end of the first pressure plate 212 is connected to the piston end of the first hydraulic cylinder 211, and the other end of the first pressure plate 212 is fixed with the first pressure block 213. The first hydraulic cylinder 211 can drive the first pressure block 213 to move to abut against the front side of the turbine blade. The first pressure block 213 cooperates with the first rear-end clamping assembly 22 on the rear side of the turbine blade to clamp the turbine blade. That is, the first pressure block 213 can abut against the front side of the turbine blade and cooperate with the screw on the rear side to clamp the blade on the front and rear sides of the turbine blade in the lateral direction. The first rear clamping assembly 22 includes a screw seat 221 disposed on the first base 25 and a screw 222 disposed on the screw seat 221 with its end extending out of the screw seat 221. The end of the screw 222 facing the first pressure plate 212 (the end extending out of the screw seat 221) can abut against the rear side of the turbine blade. In this embodiment, to ensure the fixing stability of the clamp and adapt to the blade processing angle, the first pressure plate 212 is disposed on the oblique mounting surface on the front side of the first base 25 (at a certain angle with the horizontal plane), that is, the first pressure plate 212 is obliquely disposed on the first base 25, the screw is obliquely disposed on the screw seat 221, and the first pressure block 213... Located on the front side of the turbine blade, with the screw end located on the rear side of the turbine blade, when it is necessary to clamp the turbine blade, the turbine blade is first installed on this device. One end of the turbine blade is supported (supported) by the bottom support assembly 24, and the screw end abuts against the outer wall of the rear side of the turbine blade. The first pressure block 213 at the end of the first pressure plate 212 is driven by the first oil cylinder 211 to apply force to the turbine blade from the front side of clamping the turbine blade at an angle. The first pressure block 213 cooperates with the screw to clamp the turbine blade. The orientation of the first pressure plate 212, the first pressure block 213 and the screw can be adjusted according to actual needs to ensure that the turbine blade can be clamped from the front and rear sides.

[0022] In a specific embodiment, the bottom support assembly 24 includes an adjustment plate 241 and a bottom support block 242. The adjustment plate 241 has an elongated hole along the vertical direction, through which bolts can pass to fix the adjustment plate 241 to the side wall of the first base 25. The adjustment plate 241 can move vertically on the first base 25 after the bolts are loosened, adjusting the top height of the adjustment plate 241. The top of the adjustment plate 241 abuts against the bottom of the turbine blade, supporting the bottom of the turbine blade located at one end of the moving end clamping device 2. The bottom support block 242 is disposed on the adjustment plate 241, and the top of the bottom support block 242 abuts against the lower side of the end of the turbine blade. The first top clamping assembly 23 includes a second hydraulic cylinder 231, a second pressure plate 232, and a second pressure block 233. The second hydraulic cylinder 231 is mounted on the first base 25. One end of the second pressure plate 232 is connected to the piston end of the second hydraulic cylinder 231. The other end of the second pressure plate 232 is fixed with a second pressure block 233 for cooperating with the adjusting plate 241 and the bottom support block 242 to clamp the turbine blade in the vertical direction. That is, the second hydraulic cylinder 231 can drive the second pressure block 233 to move towards the adjusting plate 241 and the bottom support block 242 by driving the second pressure plate 232 to move downward, so that the second pressure block 233 abuts against the top of the turbine blade and cooperates with the adjusting plate 241 and the bottom support block 242 to clamp the turbine blade in the vertical direction.

[0023] In a specific embodiment, the fixed end clamping device 3 includes a second base 35 fixed on the base plate 1, and the second front end clamping component 31 and the second rear end clamping component 32 are respectively disposed on the front and rear sides of the second base 35, that is, the second front end clamping component 31 and the second rear end clamping component 32 clamp the turbine blade from the front and rear sides of the turbine blade end (the far end) respectively. The second front-end clamping assembly 31 includes a third hydraulic cylinder 311, a third pressure plate 312, and a third pressure block 313. The third hydraulic cylinder 311 is mounted on the second base 35. One end of the third pressure plate 312 is connected to the piston end of the third hydraulic cylinder 311, and the other end of the third pressure plate 312 is fixed with the third pressure block 313. The third hydraulic cylinder 311 can drive the third pressure block 313 to move to abut against the front side of the turbine blade. The third pressure block 313 cooperates with the second rear-end clamping assembly on the rear side of the turbine blade to clamp the turbine blade. That is, the third pressure block 313 can abut against the front side of the turbine blade and cooperate with the rear support platform 322 to clamp the blade on the front and rear sides of the turbine blade in the lateral direction. The second rear clamping assembly 32 includes a support base 321 disposed on the second base 35 and a support platform 322 disposed on the support base 321. The platform surface of the support platform 322 facing the third pressure plate 312 can abut against the rear side of the turbine blade. In this embodiment, to ensure the stability of the fixture and adapt to the machining angle, the third pressure plate 312 is set on the oblique mounting surface on the front side of the second base 35 (at a certain angle with the horizontal plane). That is, the third pressure plate 312 is obliquely set on the second base 35, the support platform 322 is obliquely set on the support base 321, the third pressure block 313 is set on the front side of the turbine blade, and the support platform 322 is located on the rear side of the turbine blade. When it is necessary to clamp the turbine blade, the turbine blade is first installed on this device. The bottom end is supported by the bottom support assembly 34. The platform of the support platform 322 abuts against the outer wall of the rear side of the turbine blade. The third pressure block 313 at the end of the third pressure plate 312 is driven by the third oil cylinder 311 to apply force to the turbine blade from the front side of clamping the turbine blade. The third pressure block 313 cooperates with the support platform 322 to clamp the turbine blade. The direction of the third pressure plate 312, the third pressure block 313 and the screw can be adjusted according to actual needs to ensure that the turbine blade can be clamped from the front and rear sides.

[0024] In a specific embodiment, the bottom support assembly 34 includes a support platform 341 disposed on the support base 321 for supporting the bottom end of the turbine blade; when the turbine blade needs to be clamped and placed on this device, the top surface of the support platform 341 abuts against the bottom end of the turbine blade, supporting the end of the turbine blade from below (the other end of the turbine blade is supported by the adjustment plate 241 and the bottom support block 242). The second top clamping assembly 33 includes a fourth hydraulic cylinder 331, a fourth pressure plate 332, and a fourth pressure block 333. The fourth hydraulic cylinder 331 is mounted on the second base 35. One end of the fourth pressure plate 332 is connected to the piston end of the fourth hydraulic cylinder 331. The other end of the fourth pressure plate 332 is fixed with the fourth pressure block 333, which is used to cooperate with the support platform 341 to clamp the turbine blade in the vertical direction. That is, the fourth hydraulic cylinder 331 can drive the fourth pressure block 333 to move towards the adjustment plate 241 and the bottom support block 242 by driving the fourth pressure plate 332 to move downward, so that the fourth pressure block 333 abuts against the top of the turbine blade and cooperates with the support platform 34 to clamp the turbine blade in the vertical direction.

[0025] In a specific embodiment, the fixed-end clamping device 3 further includes a positioning block 36 disposed on the second base 35 and on the side away from the moving-end clamping device 2. The positioning block 36 is provided with a positioning protrusion 361 for positioning and limiting the end of the turbine blade. When the turbine blade is installed on the fixed-end clamping device 3, the positioning protrusion 361 is disposed in the concave part of the turbine blade, and the side wall of the positioning protrusion 361 can abut against the side wall of the concave part. At the same time, the positioning protrusion 361 cooperates with the push-tightening assembly to achieve limiting in the length direction (Z-axis) of the turbine blade, improve the clamping degree, ensure the positional stability of the turbine blade processing, and thus ensure the processing accuracy of the turbine blade.

[0026] In a specific embodiment, a clamping assembly 26 is provided on the side of the first base 25 away from the fixed end clamping device 3. The clamping assembly includes a clamping cylinder 261 and a clamping block 262. The clamping cylinder 261 can drive the clamping block 262 away from the positioning block, so that the clamping block 262 cooperates with the positioning protrusion 361 on the positioning block to clamp and fix the turbine blade along its length. Specifically, the clamping cylinder 261 is a hydraulic cylinder, and the piston of the clamping cylinder is arranged along the (turbine blade length / Z-axis) direction from the fixed end clamping device 3 to the moving end clamping device 2. Figure 6 The arrow on the turbine blade points in the direction of its length. The push-clamping cylinder drives the push-clamping block to move away from the positioning block, so that the side of the push-clamping block away from the positioning block abuts against the end sidewall of the turbine blade, and the sidewall of the concave part of the other end of the turbine blade abuts against the sidewall of the positioning protrusion. The push-clamping cylinder, the push-clamping block and the positioning protrusion work together to push the turbine blade in the direction of its length (Z-axis), which can improve the clamping stability of the turbine blade.

[0027] In a specific embodiment, the base plate 1 is further provided with a drag chain power device 5 for driving the first base 25 to move; a transition plate 27 is fixed at the bottom of the first base 25, and sliders 28 are provided on the front and rear sides of the transition plate 27. The transition plate 27 is mounted on the base plate 1 through the sliders. The base plate 1 is provided with a sliding groove 11 arranged along the direction from the fixed end clamping device 3 to the moving end clamping device 2; the cross-section of the base plate 1 is rectangular, and the edge sidewall of the base plate 1 with the slider is parallel to the direction from the fixed end clamping device 3 to the moving end clamping device 2. The edge of the base plate 1 cooperates with the slider. Under the drive of the drag chain power device, the moving end clamping device 2 moves towards or away from the fixed end clamping device 3, thereby adjusting the distance between the fixed end clamping device 3 and the moving end clamping device 2 to meet the clamping requirements of turbine blades of different specifications. In this embodiment, the cable chain power unit is located on one side of the base plate 1. The cable chain power unit includes a drive motor, a ball screw, and a cable chain body 51. The cable chain power unit is a prior art device. In this embodiment, the ball screw is located at the bottom of the base plate 1 along the direction from the fixed end clamping device 3 to the moving end clamping device 2. The drive motor provides power output and is connected to the ball screw through a coupling. The top of the nut seat 52 on the ball screw extends out of the slide groove and is fixedly connected to the bottom of the transition plate. The slide groove is set parallel to the ball screw and slides in cooperation with the first base 25. When the drive motor starts, the ball screw rotates accordingly, and the nut seat moves along the axial direction of the ball screw. Under the guidance of the slider and the edge of the base plate 1, the first base 25 moves smoothly. At the same time, the cable chain body 51 extends and retracts with the movement of the first base 25, thereby driving the first base 25 to move on the base plate 1. The distance between the first base 25 and the second base 35 is adjusted to accommodate the clamping of turbine blades of different lengths. It is flexible in application and has a wide range of applications. In a specific embodiment, an oil distribution block 6 is also included. The oil distribution block is fixed to the side of the first base 25 and has an oil passage for supplying oil to the first oil cylinder 211, the second oil cylinder 231, the third oil cylinder 311, and the fourth oil cylinder 331. In this embodiment, an oil distribution block protective cover 7 is provided on the outside of the oil distribution block 6 to protect the oil distribution block. Oil passages are provided on the base plate 1, the transition plate, the first base 25, and the second base 35. One end of the oil passage on the oil distribution block 6 is connected to the oil passages on the base plate 1 and the transition plate, and the other end of the oil passage on the oil distribution block is connected to each oil cylinder through the oil passages on the first base 25 and the second base 35. The inlet end of the oil passage can be supplied with oil through a quick-connect connector.

[0028] In a specific embodiment, a pad is also included. The pad is disposed at the bottom of the base plate 1 and is used to adjust the levelness of the base plate 1. Specifically, the pad is detachably installed at the bottom of the base plate 1. By installing pads of different heights, the levelness of the base plate 1 is ensured. A level detection device, such as a level, is also installed on the base plate 1 to ensure the levelness of the base plate 1, thereby ensuring the levelness of the clamp and avoiding affecting the machining accuracy of the turbine blades. The pad can also be replaced with other existing automatic leveling devices for the base plate 1 as needed, such as electric lifting support columns, hydraulic leveling legs, leveling pads with fine adjustment mechanisms, etc. The levelness of the base plate 1 can be quickly adjusted through mechanical or automatic control methods to ensure the levelness of the base plate 1.

[0029] This solution is equipped with sensors to detect whether each clamping block is clamped, a vision system to monitor in real time whether the blades are installed in place, and a positioning sensor to locate the real-time position of the mobile end clamping device 2; it can also be equipped with a control system to control the movement of each component, and cooperate with the robotic arm to grasp and install the turbine blades to realize the automated clamping of the turbine blades. The above-mentioned sensors, systems and other electronic components are all conventional settings in the field and are not the inventive point of this solution. Their more specific principles will not be elaborated here.

[0030] In a specific embodiment, both the first base 25 and the second base 35 are provided with guide plates 8 on their sides for collecting the waste chips from the turbine blade processing. The guide plate on one side of the first base 25 is located on the side of the first base 25 away from the second base 35, and the guide plate on one side of the second base 35 is located on the side of the second base 35 away from the first base 25. The guide plates are arranged obliquely, with the top of the guide plate located on the underside of the turbine blade and the bottom of the guide plate located on the upper side of the collection trough (not shown in the figure), which facilitates the collection of waste chips generated during processing.

[0031] The usage process of this steam turbine fixture is as follows: Based on the length of the turbine blade to be clamped, the moving end clamping device 2 is driven to a suitable distance position (coarse adjustment) with the fixed end clamping device 3 via the drag chain drive device 5. The bolts on the first base 25 are loosened, and the adjusting plate 241 is driven to rise or fall to a suitable position, while the bottom support block 242 on it moves to a suitable position. Then, the turbine blade is placed on the moving end clamping device and the fixed end clamping device. At this time, the rear side wall of the left end of the turbine blade rests against the end of the screw, and the bottom is supported by the adjusting plate 241 and the bottom support block 242 of the bottom support assembly. The rear side of the right end of the turbine blade rests against the support platform 322, and the bottom is supported by the support platform 34 of the fixed clamping device. 1. Support: At this time, the positioning protrusion 361 of the fixed end clamping device 3 is located in the concave part of the turbine blade, and the turbine blade is in an unclamped state. Then, the position of the transition plate on the base plate 1 can be adjusted appropriately to make the blade position in the appropriate position of the clamp. Finally, the five hydraulic cylinders equipped with this clamp work simultaneously. The second hydraulic cylinder 231 drives the second pressure block 233 to move downward from the top of the left end of the turbine blade until the second pressure block 233 cooperates with the adjusting plate 241 and the bottom support block 242 to clamp the top and bottom of the turbine blade. The first hydraulic cylinder drives the first pressure block to move obliquely backward from the front end of the left end of the turbine blade until the first pressure block cooperates with the screw to clamp the front and rear ends (sides) of the left end of the turbine blade. The fourth hydraulic cylinder 331 drives the fourth pressure block 333 to move downwards from the top right end of the turbine blade until the fourth pressure block 333 cooperates with the support platform 341 to clamp the top and bottom of that end of the turbine blade. The third hydraulic cylinder 311 drives the third pressure block 313 to move obliquely backwards from the front end of the right end of the turbine blade until the fourth pressure block cooperates with the support platform 322 to clamp the front and rear ends (sides) of the turbine blade. At the same time, the push-tightening cylinder 261 drives the push-tightening block 262 to move away from the positioning protrusion 361 until the side of the push-tightening block 262 away from the positioning protrusion 361 abuts against the side wall of the turbine blade end. The side wall of the concave part of the turbine blade abuts against the side wall of the positioning protrusion. The push-tightening block 262 and the positioning protrusion 361 push / clamp the turbine blade along its length. This achieves clamping and fixing of the front end, rear end, top, bottom, and length of the turbine blade, ensuring the clamping stability of the turbine blade. A schematic diagram of turbine blades being clamped in a turbine blade fixture is shown below. Figure 6 As shown.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A turbine blade clamp characterized by, It includes a base plate (1) and a movable end clamping device (2) and a fixed end clamping device (3) disposed on the base plate (1); The fixed end clamping device (3) is fixedly disposed on one side of the base plate (1), and the movable end clamping device (2) is movably disposed on the other side of the base plate (1) and can move towards or away from the fixed end clamping device (3). One end of the turbine blade (4) is mounted on the moving end clamping device (2), and this end can be clamped and fixed by the first front end clamping component (21), the first rear end clamping component (22), the first top clamping component (23) and the bottom support component (24) of the moving end clamping device (2); the other end of the turbine blade is mounted on the fixed end clamping device (3), and this end can be clamped and fixed by the second front end clamping component (31), the second rear end clamping component (32), the second top clamping component (33) and the bottom support component (34) of the fixed end clamping device (3).

2. A turbine blade clamp according to claim 1, characterised in that The mobile end clamping device (2) includes a first base (25), which is slidably disposed on the base plate (1); the first front end clamping assembly (21) and the first rear end clamping assembly (22) are respectively disposed on the front and rear sides of the first base (25); The first front-end clamping assembly (21) includes a first hydraulic cylinder (211), a first pressure plate (212), and a first pressure block (213). The first hydraulic cylinder (211) is mounted on the first base (25). One end of the first pressure plate (212) is connected to the piston end of the first hydraulic cylinder (211). The other end of the first pressure plate (212) is fixed with the first pressure block (213). The first hydraulic cylinder (211) can drive the first pressure block (213) to move to abut against the front side of the turbine blade. The first pressure block (213) cooperates with the first rear-end clamping assembly (22) on the rear side of the turbine blade to clamp the turbine blade. The first rear clamping assembly (22) includes a screw seat (221) disposed on the first base (25) and a screw (222) disposed on the screw seat (221) and having its end extending out of the screw seat (221). One end of the screw (222) facing the first pressure plate (212) can abut against the rear side of the turbine blade.

3. A turbine blade clamp according to claim 2, characterised in that, The bottom support assembly (24) includes an adjustment plate (241) and a bottom support block (242). The adjustment plate (241) has an elongated hole along the vertical direction. A bolt can pass through the elongated hole to fix the adjustment plate (241) to the side wall of the first base (25). The adjustment plate (241) can move vertically on the first base (25) after the bolt is loosened to adjust the top height of the adjustment plate (241). The top of the adjustment plate (241) abuts against the bottom of the turbine blade. The bottom support block (242) is provided on the adjustment plate (241), and the top of the bottom support block (242) abuts against the lower side of the end of the turbine blade. The first top clamping assembly (23) includes a second oil cylinder (231), a second pressure plate (232), and a second pressure block (233). The second oil cylinder (231) is mounted on the first base (25). One end of the second pressure plate (232) is connected to the piston end of the second oil cylinder (231). The other end of the second pressure plate (232) is fixed with a second pressure block (233) for cooperating with the adjusting plate (241) and the bottom support block (242) to clamp the turbine blades in the vertical direction.

4. A turbine blade clamp according to claim 3, characterised in that The fixed end clamping device (3) includes a second base (35) fixed on the base plate (1), and the second front end clamping assembly (31) and the second rear end clamping assembly (32) are respectively disposed on the front and rear sides of the second base (35); The second front end clamping assembly (31) includes a third hydraulic cylinder (311), a third pressure plate (312), and a third pressure block (313). The third hydraulic cylinder (311) is mounted on the second base (35). One end of the third pressure plate (312) is connected to the piston end of the third hydraulic cylinder (311), and the other end of the third pressure plate (312) is fixed with the third pressure block (313). The third hydraulic cylinder (311) can drive the third pressure block (313) to move to abut against the front side of the turbine blade. The third pressure block (313) cooperates with the second rear end clamping assembly on the rear side of the turbine blade to clamp the turbine blade. The second rear clamping assembly (32) includes a support base (321) on the second base (35) and a support platform (322) on the support base (321). The platform of the support platform (322) facing the third pressure plate (312) can abut against the rear side of the turbine blade.

5. A turbine blade clamp according to claim 4, wherein, The bottom support assembly (34) includes a support platform (341) disposed on the support base (321) for supporting the bottom end of the turbine blade. The second top clamping assembly (33) includes a fourth cylinder (331), a fourth pressure plate (332), and a fourth pressure block (333). The fourth cylinder (331) is mounted on the second base (35). One end of the fourth pressure plate (332) is connected to the piston end of the fourth cylinder (331). The other end of the fourth pressure plate (332) is fixed with the fourth pressure block (333) for cooperating with the support platform (341) to clamp the turbine blades in the vertical direction.

6. The turbine blade clamp of claim 4, wherein, The fixed end clamping device (3) further includes a positioning block (36) provided on the second base (35), and the positioning block (36) is provided with a positioning protrusion (361) for positioning and limiting the end of the turbine blade.

7. A turbine blade clamp according to claim 6, characterised in that A push-tightening assembly (26) is provided on the side of the first base (25) away from the fixed end clamping device (3). The push-tightening assembly (26) includes a push-tightening cylinder (261) and a push-tightening block (262). The push-tightening cylinder (261) can drive the push-tightening block (262) away from the positioning block (36), so that the push-tightening block (262) cooperates with the positioning protrusion (361) on the positioning block (36) to clamp and fix the turbine blade in the length direction.

8. The turbine blade clamp of claim 2, wherein, The base plate (1) is also provided with a drag chain power device (5) for driving the first base (25) to move.

9. The turbine blade clamp of claim 5, wherein, It also includes an oil distribution block (6), which is fixed to the side of the first base (25). The oil distribution block (6) is provided with an oil passage for supplying oil to the first oil cylinder (211), the second oil cylinder (231), the third oil cylinder (311), and the fourth oil cylinder (331).

10. The turbine blade clamp of claim 4, wherein, Both the first base (25) and the second base (35) are provided with guide plates (8) for collecting the waste chips from the turbine blade processing.

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