Production assembly line and production process for high-pressure blade of steam turbine

Abstract

The invention discloses a steam turbine high-pressure blade production assembly line and a production process, and relates to the technical field of steam turbine production assembly, the steam turbine high-pressure blade production assembly line comprises a base, a connecting seat, a plurality of connecting rods, a plurality of connecting rods and a plurality of connecting rods, the sliding plate is slidably mounted at the top end of the connecting seat and slides in an arc shape along the top end of the connecting seat; an impeller is fixedly mounted on the blade shaft, and an assembly groove is formed in the impeller; the arc-shaped plate is fixedly installed at the top end of the sliding plate, and a baffle is fixedly installed at the end, away from the impeller, of the arc-shaped plate; a blade; and the knocking block is arranged on the sliding plate. When the sliding plate moves, the swing arm which swings continuously on the sliding plate swings the knocking block to hammer the blade base at the lowest end, the blade base is hammered into the assembling groove at the moment, and therefore the blade can be continuously assembled into the impeller along with continuous rotation of the blade shaft of the impeller.

Description

Technical Field

[0001] The invention relates to the technical field of steam turbine production and assembly, and in particular to a production and assembly line and a production process for steam turbine high-pressure blades. Background Art

[0002] A steam turbine, also known as a steam turbine engine, is a rotary steam power device. High-temperature and high-pressure steam passes through a fixed nozzle to become an accelerated airflow and then sprays onto the blades, causing the rotor with the blade rows to rotate and perform work externally.

[0003] The assembly of turbine blades is extremely important. When assembling the blades, workers usually insert the blades into the assembly grooves of the impeller and then use hammers to knock them so that the blades are installed in the impeller. However, the existing assembly methods are mostly done manually, which makes the assembly efficiency low. It often takes a whole day to assemble an impeller. At the same time, the continuous knocking also makes the workers' arms sore, resulting in lower subsequent work efficiency. Summary of the invention

[0004] The object of the present invention is to provide a production assembly line and production process for high-pressure blades of a steam turbine to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a production assembly line for high-pressure blades of a steam turbine, comprising a base, on which a bracket is fixedly installed, and also comprising: a connecting seat, which is fixedly installed on the base, and the top of the connecting seat is arc-shaped; a slide plate, which is slidably installed on the top of the connecting seat, and the slide plate slides in an arc along the top of the connecting seat; a blade shaft, on which an impeller is fixedly installed, and an assembly groove is provided on the impeller; an arc plate, which is fixedly installed on the top of the slide plate, and a baffle is fixedly installed on the end of the arc plate away from the impeller; a blade; a knocking block, which is arranged on the slide plate, and continuously knocks the blade as the slide plate moves so that it enters the assembly groove; a vertical plate, which is vertically slidably installed on one side of the slide plate, so that the slide plate can slide synchronously with the rotation of the impeller.

[0006] Preferably, a side panel with an L-shaped cross-section is fixedly installed on the skateboard, and the vertical panel is slidably installed in the side panel, and the vertical panel is L-shaped, the short arm end of the L-shaped vertical panel is located below the side panel, and a first spring is fixedly installed between the short arm end of the L-shaped vertical panel and the side panel, and the top end of the vertical panel is provided with a bevel.

[0007] Preferably, a fixing rod is fixedly mounted on the slide plate, a friction disc is rotatably mounted on the bottom end of the fixing rod, a friction wheel is rotatably mounted on the slide plate, and a belt is installed between the friction wheel and the friction disc for transmission;

[0008] The friction disc is fixedly mounted with an arc block, the fixed rod is rotatably mounted with a rotating rod, the rotating rod is fixedly mounted with a swing arm, the knocking block is fixedly mounted at the bottom end of the swing arm, the fixed rod is slidably mounted with a sliding sleeve, the inner wall of the sliding sleeve is fixedly mounted with a convex block, and the rotating rod is provided with a screw groove matched with the convex block;

[0009] A driving mechanism is arranged on the base.

[0010] Preferably, a disc is fixedly mounted on the surface of the sliding sleeve;

[0011] A return spring is fixedly mounted on one end of the sliding sleeve away from the disc, and a circular ring is fixedly mounted on the other end of the return spring. The circular ring is rotatably mounted in the fixing rod.

[0012] Preferably, the driving mechanism comprises a servo motor fixedly mounted in the bracket, a connecting shaft is fixedly mounted on the output end of the servo motor, a first turntable is fixedly mounted on the connecting shaft, a second turntable is rotatably mounted on the connecting seat, and the first turntable and the second turntable are fitted together, and a plug rod is fixedly mounted on the second turntable;

[0013] A friction plate is slidably mounted on the side wall of the connecting seat, and a rectangular frame is fixedly mounted on the bottom end of the friction plate. The insertion rod is inserted into the inner wall of the rectangular frame, and the friction wheel and the friction plate are fitted together.

[0014] Preferably, a vertical rod is fixedly mounted on the connecting seat, an extrusion plate is fixedly mounted on the vertical rod, and the extrusion plate is arc-shaped, a sliding bar is vertically slidably mounted on the fixed rod, and the sliding bar and the sliding sleeve are in close contact.

[0015] Preferably, the slide bar is L-shaped, and a second spring is fixedly installed between the short arm end of the slide bar and the fixed rod.

[0016] Preferably, a reducer is fixedly mounted on the bracket, a transmission belt is installed between the reducer and the connecting shaft, and a driven wheel is installed at the output end of the reducer.

[0017] Preferably, a limit plate is fixedly mounted on the side wall of the fixing rod, and a limit strip is fixedly mounted on the bottom end of the limit plate.

[0018] A production process for a steam turbine high-pressure blade production assembly line comprises the following steps:

[0019] S1. Forged blade blank, and the blank is made of stainless steel;

[0020] S2. Processing the reference surface of the blade by ordinary machine tools;

[0021] S3, placing the blade shaft on the bracket by means of a crane;

[0022] S4, placing the blade on the slide and starting the servo motor;

[0023] S5. The blades are continuously assembled into the assembly groove of the impeller as the impeller rotates.

[0024] In the above technical scheme, the present invention provides a production assembly line and production process for high-pressure blades of a steam turbine, which have the following beneficial effects: when the blade is placed on the top of the slide plate, the blade is misaligned with the assembly groove on the impeller when it is located on the arc plate, and the spacing dimension between the baffle and the impeller is consistent with the length dimension of the blade base. At this time, when the blade is placed on the arc plate, it will be hung upside down between the arc plate and the impeller, and the blade end will face downward, and the base will be located above. At this time, the base of the blade is hung on the slide plate, and will be kept horizontal through the baffle and the side wall of the impeller until a certain assembly groove on the impeller is located at the lowest end. At this time, the vertical plate will be inserted into the assembly groove at the lowest end. At this time, the rotation of the impeller will drive the slide plate to move synchronously through the vertical plate, and when the slide plate moves, the swing arm on it will swing the striking block to hammer the blade base at the lowest end. At this time, the blade base will be hammered into the assembly groove, so as the impeller shaft continues to rotate, the blade can be continuously assembled into the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0026] Figure 1 A schematic diagram of a three-dimensional structure provided by an embodiment of the present invention;

[0027] Figure 2 The embodiment of the present invention provides Figure 1 Schematic diagram of some structures;

[0028] Figure 3-4 All of them are partial structural schematic diagrams of the skateboard provided by the embodiments of the present invention;

[0029] Figure 5-6 All of them are partial structural schematic diagrams of the connecting socket provided by the embodiments of the present invention;

[0030] Figure 7 A schematic diagram of a portion of the structure of a side panel provided in an embodiment of the present invention;

[0031] Figure 8 A schematic diagram of a portion of the structure of a swing arm provided in an embodiment of the present invention;

[0032] Fig. 9 The embodiment of the present invention provides Figure 8 Schematic diagram of the structure at point A.

[0033] Description of reference numerals:

[0034] 1. Base; 2. Bracket; 3. Impeller shaft; 4. Impeller; 41. Assembly groove; 51. Connecting seat; 52. Slide plate; 53. Side plate; 54. Vertical plate; 55. Arc plate; 56. Baffle; 61. Connecting shaft; 62. First turntable; 63. Second turntable; 64. Insert rod; 65. Rectangular frame; 66. Friction plate; 67. Friction wheel; 68. Belt; 69. Friction disc; 610. Arc block; 71. Sliding sleeve; 72. Disc; 73. Bump; 74. Reset spring; 75. Ring; 76. Rotating rod; 77. Swing arm; 78. Knocking block; 79. Extrusion plate; 710. Vertical rod; 711. Sliding bar; 81. Fixed rod; 82. Limit plate; 83. Limit bar; 9. Blade; 10. Transmission belt; 11. Reducer; 12. Driven wheel. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] See also Figure 1-9 A production assembly line and production process of a steam turbine high-pressure blade, comprising a base 1, a bracket 2 is fixedly mounted on the base 1, and further comprising:

[0037] A connecting base 51 is fixedly mounted on the base 1, and the top of the connecting base 51 is arc-shaped;

[0038] The slide plate 52 is slidably mounted on the top of the connecting seat 51, and the slide plate 52 slides in an arc shape along the top of the connecting seat 51;

[0039] The impeller shaft 3 has an impeller 4 fixedly mounted thereon, and the impeller 4 has a mounting groove 41;

[0040] The arc plate 55 is fixedly mounted on the top of the slide plate 52, and a baffle 56 is fixedly mounted on one end of the arc plate 55 away from the impeller 4;

[0041] Blade 9;

[0042] A knocking block 78 is disposed on the slide plate 52 and continuously knocks the blade 9 as the slide plate 52 moves so that the blade 9 enters the assembly groove 41;

[0043] A vertical plate 54 is vertically slidably mounted on one side of the slide plate 52, so that the slide plate 52 can slide synchronously with the rotation of the impeller 4;

[0044] Among them, the curvature of the arc at the top of the connecting seat 51 and the slide plate 52 is consistent with the curvature of the impeller 4, so that when the slide plate 52 slides over the connecting seat 51, it maintains the same curvature as the rotation of the impeller 4. Before assembly, the blade 9 can be directly placed on the top of the slide plate 52. At this time, due to the change in the curvature of the arc plate 55, its thickness toward the outside of the slide plate 52 increases. When the blade 9 is placed on the top of the slide plate 52, the blade 9 is misaligned with the assembly groove 41 on the impeller 4 when it is located on the arc plate 55, and the spacing dimension between the baffle 56 and the impeller 4 is consistent with the length dimension of the base of the blade 9. At this time, when the blade 9 is placed on the arc plate 55, it will be hung upside down between the arc plate 55 and the impeller 4, and at this time, the blade end of the blade 9 will face downward and the base will be located at the top. At this time, the base of the blade 9 is hung on the slide plate 52, and through The baffle plate 56 and the side wall of the impeller 4 will remain in a horizontal state until a certain assembly groove 41 on the impeller 4 is located at the lowest end. At this time, the vertical plate 54 will be inserted into the assembly groove 41 at the lowest end. At this time, the rotation of the impeller 4 will drive the slide plate 52 to move synchronously through the vertical plate 54, and when the slide plate 52 moves, the swing arm 77 on it will swing the striking block 78 to hammer the base of the blade 9 at the lowest end. At this time, the base of the blade 9 will be hammered into the assembly groove 41. At the same time, as the blade 9 is inserted, the vertical plate 54 will be detached from the assembly groove 41. After the blade 9 is fully inserted into the assembly groove 41, the slide plate 52 will be separated from the impeller 4. At this time, the slide plate 52 will rotate and reset until another assembly groove 41 moves to the lowest end. At this time, the vertical plate 54 will be inserted into it again so that the slide plate 52 moves with the impeller 4.

[0045] In another embodiment of the present invention, a side plate 53 having an L-shaped cross section is fixedly mounted on the slide plate 52, a vertical plate 54 is slidably mounted in the side plate 53, and the vertical plate 54 is L-shaped, a short arm end of the L-shaped vertical plate 54 is located below the side plate 53, a first spring is fixedly mounted between the short arm end of the L-shaped vertical plate 54 and the side plate 53, and a bevel is provided at the top end of the vertical plate 54;

[0046] The hypotenuse end of the vertical plate 54 is inserted into the assembly groove 41. When the base of the blade 9 is inserted into the assembly groove 41, the base will squeeze the hypotenuse of the vertical plate 54. At this time, the hypotenuse of the vertical plate 54 will be pressed to make the vertical plate 54 fall. When the vertical plate 54 leaves the assembly groove 41, since the blade 9 has entered the assembly groove 41, the slide plate 52 will continue to move with the impeller 4 through the blade 9.

[0047] The side plate 53 is L-shaped so that the vertical plate 54 is located as much as possible inside the assembly groove 41 , thereby preventing the end of the blade 9 from contacting the vertical plate 54 .

[0048] In another embodiment of the present invention, a fixing rod 81 is fixedly mounted on the slide plate 52, a friction disc 69 is rotatably mounted on the bottom end of the fixing rod 81, a friction wheel 67 is rotatably mounted on the slide plate 52, and a belt 68 is installed between the friction wheel 67 and the friction disc 69 for transmission;

[0049] The friction disc 69 is fixedly mounted with an arc block 610, the fixed rod 81 is rotatably mounted with a rotating rod 76, the rotating rod 76 is fixedly mounted with a swing arm 77, the knocking block 78 is fixedly mounted at the bottom end of the swing arm 77, the fixed rod 81 is slidably mounted with a sliding sleeve 71, the inner wall of the sliding sleeve 71 is fixedly mounted with a protrusion 73, and the rotating rod 76 is provided with a screw groove matched with the protrusion 73;

[0050] A driving mechanism is provided on the base 1;

[0051] The driving mechanism will drive the impeller 3 and the impeller 4 to rotate, and at the same time, the driving mechanism will drive the friction disk 69 to reciprocate. As the friction disk 69 reciprocates, it will drive the arc block 610 on the surface to squeeze the sleeve 71. When the arc block 610 squeezes the sleeve 71, since the sleeve 71 is outer-mounted on the rotating rod 76, the protrusion 73 on the sleeve 71 will move axially in the screw groove. At this time, the rotating rod 76 will rotate in a small range through the cooperation of the protrusion 73 and the screw groove. At this time, the rotating rod 76 will drive the swing arm 77 and the knocking block 78 to swing back and forth in a small range to knock the blade 9, and the knocking block 78 is made of rubber material.

[0052] In another embodiment of the present invention: a disc 72 is fixedly mounted on the surface of the sliding sleeve 71;

[0053] A return spring 74 is fixedly mounted on one end of the sliding sleeve 71 away from the disc 72, and a ring 75 is fixedly mounted on the other end of the return spring 74. The ring 75 is rotatably mounted in the fixed rod 81.

[0054] The disc 72 makes the surface of the sliding sleeve 71 larger so as to facilitate contact with the arc block 610;

[0055] When the arc block 610 squeezes the disc 72 so that it drives the sleeve 71 to slide horizontally toward the fixed rod 81, the return spring 74 will be compressed. As the arc block 610 moves away, the return spring 74 will push the sleeve 71 to return to its original position, thereby facilitating the downward movement and squeezing of the arc block 610.

[0056] In another embodiment of the present invention: the driving mechanism includes a servo motor fixedly installed in the bracket 2, a connecting shaft 61 is fixedly installed on the output end of the servo motor, a first rotating disk 62 is fixedly installed on the connecting shaft 61, a second rotating disk 63 is rotatably installed on the connecting seat 51, and the first rotating disk 62 and the second rotating disk 63 are in contact with each other, and a plug rod 64 is fixedly installed on the second rotating disk 63;

[0057] A friction plate 66 is slidably mounted on the side wall of the connecting seat 51, and a rectangular frame 65 is fixedly mounted on the bottom end of the friction plate 66. The insertion rod 64 is inserted into the inner wall of the rectangular frame 65, and the friction wheel 67 and the friction plate 66 are in contact with each other.

[0058] The insertion rod 64 is eccentrically arranged on the second turntable 63. When the servo motor drives the connecting shaft 61 to rotate, the connecting shaft 61 will drive the first turntable 62 to rotate. At this time, the first turntable 62 will drive the second turntable 63 to rotate. As the second turntable 63 rotates, the insertion rod 64 thereon will move on the inner wall of the rectangular frame 65. At this time, the insertion rod 64 will drive the friction plate 66 to move left and right by driving the rectangular frame 65 to move left and right. As the friction plate 66 moves left and right, it will drive the friction wheel 67 to rotate back and forth. At this time, the friction wheel 67 will drive the friction plate 69 to rotate through the belt 68.

[0059] In another embodiment of the present invention, a vertical rod 710 is fixedly mounted on the connecting seat 51, a pressing plate 79 is fixedly mounted on the vertical rod 710, and the pressing plate 79 is arc-shaped, a sliding bar 711 is vertically slidably mounted on the fixed rod 81, and the sliding bar 711 and the sliding sleeve 71 are in contact with each other;

[0060] When the slide plate 52 moves with the impeller 4, the slide bar 711 on the fixed rod 81 will also move synchronously with the movement of the slide plate 52. Figure 4 When it moves to the left, as the thickness of the extrusion plate 79 increases, the slide bar 711 will be pressed down, and as the slide bar 711 moves down, it will drive the sleeve 71 to rotate. At this time, although the rotating rod 76 is always rotating frequently with a small amplitude, due to the rotation of the sleeve 71, the knocking position of the entire swing arm 77 will change, so that the blade 9 is continuously hammered into the assembly groove 41.

[0061] In another embodiment of the present invention: the slide bar 711 is L-shaped, and a second spring is fixedly installed between the short arm end of the slide bar 711 and the fixed rod 81;

[0062] When the slide plate 52 is reset, the second spring will push the slide bar 711 to reset upward.

[0063] In another embodiment of the present invention: a reducer 11 is fixedly mounted on the bracket 2, a transmission belt 10 is installed between the reducer 11 and the connecting shaft 61, and a driven wheel 12 is installed at the output end of the reducer 11;

[0064] When the connecting shaft 61 rotates, the driven wheel 12 will be driven to rotate through the transmission belt 10 and the reducer 11. At this time, the rotation speed of the driven wheel 12 will be greatly reduced, and the driven wheel 12 can drive the impeller shaft 3 to rotate.

[0065] In another embodiment of the present invention: a limit plate 82 is fixedly installed on the side wall of the fixing rod 81, and a limit strip 83 is fixedly installed on the bottom end of the limit plate 82;

[0066] The limiting plate 82 and the limiting bar 83 ensure that when the base of the blade 9 slides to the lowest end above the slide plate 52, the base of the blade 9 will contact the limiting plate 82 and the limiting bar 83, thereby maintaining verticality. Furthermore, magnets are fixedly installed inside the limiting plate 82 and the limiting bar 83, so as to facilitate the adsorption of the base so that the side wall of the base remains in a vertical state, but the magnetic force of the magnet will not affect the insertion of the blade 9 into the assembly groove 41.

[0067] A production process for a steam turbine high-pressure blade production assembly line comprises the following steps:

[0068] S1, forging blade 9 blank, and the blank material is stainless steel;

[0069] S2, machining the reference surface of the blade 9 by a common machine tool;

[0070] S3, placing the blade shaft 3 on the bracket 2 by means of a crane;

[0071] S4, placing the blade 9 on the slide plate 52, and starting the servo motor;

[0072] S5. The blades 9 are continuously assembled into the assembly grooves 41 of the impeller 4 as the impeller 4 rotates.

[0073] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A production assembly line for high-pressure blades of a steam turbine, comprising a base (1), on which a bracket (2) is fixedly mounted, characterized in that: Also includes: A connecting seat (51) is fixedly mounted on the base (1), and the top end of the connecting seat (51) is arc-shaped; A slide plate (52) is slidably mounted on the top of the connecting seat (51), and the slide plate (52) slides in an arc shape along the top of the connecting seat (51); An impeller shaft (3) on which an impeller (4) is fixedly mounted, and an assembly groove (41) is provided on the impeller (4); An arc-shaped plate (55) is fixedly mounted on the top of the slide plate (52), and a baffle (56) is fixedly mounted on one end of the arc-shaped plate (55) away from the impeller (4); Leaf blade (9); A knocking block (78) is arranged on the slide plate (52) and continuously knocks the blade (9) as the slide plate (52) moves so that the blade (9) enters the assembly groove (41); The vertical plate (54) is vertically slidably mounted on one side of the slide plate (52), so that the slide plate (52) can slide synchronously with the rotation of the impeller (4).

2. A production assembly line for high-pressure blades of steam turbines according to claim 1, characterized in that: A side plate (53) with an L-shaped cross section is fixedly mounted on the slide plate (52), the vertical plate (54) is slidably mounted inside the side plate (53), and the vertical plate (54) is L-shaped, the short arm end of the L-shaped vertical plate (54) is located below the side plate (53), a first spring is fixedly mounted between the short arm end of the L-shaped vertical plate (54) and the side plate (53), and a bevel is provided at the top end of the vertical plate (54).

3. A production assembly line for high-pressure blades of steam turbines according to claim 2, characterized in that: A fixing rod (81) is fixedly mounted on the slide plate (52), a friction disc (69) is rotatably mounted on the bottom end of the fixing rod (81), a friction wheel (67) is rotatably mounted on the slide plate (52), and a belt (68) is installed between the friction wheel (67) and the friction disc (69) for transmission; An arc block (610) is fixedly mounted on the friction disc (69), a rotating rod (76) is rotatably mounted on the fixed rod (81), a swing arm (77) is fixedly mounted on the rotating rod (76), the knocking block (78) is fixedly mounted on the bottom end of the swing arm (77), a sliding sleeve (71) is slidably mounted on the fixed rod (81), a convex block (73) is fixedly mounted on the inner wall of the sliding sleeve (71), and a screw groove matching the convex block (73) is provided on the rotating rod (76); A driving mechanism is arranged on the base (1).

4. A production assembly line for high-pressure blades of steam turbines according to claim 3, characterized in that: A disc (72) is fixedly mounted on the surface of the sliding sleeve (71); A return spring (74) is fixedly mounted on one end of the sliding sleeve (71) away from the disc (72), and a circular ring (75) is fixedly mounted on the other end of the return spring (74). The circular ring (75) is rotatably mounted in the fixing rod (81).

5. The production assembly line of a steam turbine high-pressure blade according to claim 3, characterized in that: The driving mechanism comprises a servo motor fixedly mounted in a bracket (2); a connecting shaft (61) is fixedly mounted on the output end of the servo motor; a first rotating disk (62) is fixedly mounted on the connecting shaft (61); a second rotating disk (63) is rotatably mounted on the connecting seat (51); the first rotating disk (62) and the second rotating disk (63) are in close contact with each other; and a plug rod (64) is fixedly mounted on the second rotating disk (63); A friction plate (66) is slidably mounted on the side wall of the connecting seat (51), and a rectangular frame (65) is fixedly mounted on the bottom end of the friction plate (66); the insertion rod (64) is inserted into the inner wall of the rectangular frame (65), and the friction wheel (67) and the friction plate (66) are in contact with each other.

6. The production assembly line of a steam turbine high-pressure blade according to claim 4, characterized in that: A vertical rod (710) is fixedly mounted on the connecting seat (51), an extrusion plate (79) is fixedly mounted on the vertical rod (710), and the extrusion plate (79) is arc-shaped, a slide bar (711) is vertically slidably mounted on the fixed rod (81), and the slide bar (711) and the sliding sleeve (71) are in close contact with each other.

7. A production assembly line for high-pressure blades of steam turbines according to claim 6, characterized in that: The slide bar (711) is L-shaped, and a second spring is fixedly installed between the short arm end of the slide bar (711) and the fixed rod (81).

8. The production assembly line of a steam turbine high-pressure blade according to claim 7, characterized in that: A reducer (11) is fixedly mounted on the bracket (2), a transmission belt (10) is mounted between the reducer (11) and the connecting shaft (61), and a driven wheel (12) is mounted at the output end of the reducer (11).

9. The production assembly line of a steam turbine high-pressure blade according to claim 8, characterized in that: A limiting plate (82) is fixedly mounted on the side wall of the fixing rod (81), and a limiting strip (83) is fixedly mounted on the bottom end of the limiting plate (82).

10. A production process for a steam turbine high-pressure blade production assembly line, which is used for the assembly line described in claims 1 to 9, characterized in that: The following steps are involved: S1, a forged blade (9) blank, wherein the blank is made of stainless steel; S2, machining the reference surface of the blade (9) by a common machine tool; S3, placing the blade shaft (3) on the bracket (2) by means of a crane; S4, placing the blade (9) on the slide plate (52) and starting the servo motor; S5. The blades (9) are continuously assembled into the assembly grooves (41) of the impeller (4) as the impeller (4) rotates.

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