A device for quickly positioning and clamping a shaft diameter type blade

Abstract

The application discloses a device for quickly positioning and clamping a shaft-diameter type blade, which comprises a lower support, a lower containing groove horizontally and vertically formed in the lower side of the lower support, a fixing hole vertically and horizontally formed in the top of the lower support, a fixing column vertically arranged on the upper side of the lower support and integrally connected with the lower support, the axis of the fixing column coincides with the axis of the fixing hole, the inner cavity of the fixing column is used for the shaft of the shaft-diameter type blade to pass through from top to bottom and extend into the lower containing groove, the upper edge of the fixing column is used for abutting against the lower side of the blade root edge plate of the shaft-diameter type blade, a lower clamping mechanism arranged in the lower containing groove of the lower support and used for clamping the shaft of the shaft-diameter type blade passing through the fixing column, and an upper clamping mechanism arranged on the upper side of the lower support and surrounding the fixing column and used for limiting the shaft curved surface of the shaft-diameter type blade.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of aviation blade manufacturing, and particularly relates to a device for quickly positioning and clamping a shaft-diameter blade. BACKGROUND

[0002] An aero-engine is the heart of an airplane and also a difficulty in airplane manufacturing. Among them, the aero-engine blade accounts for about 30% of the aero-engine manufacturing. Due to the complex curved surface, large size and width, and harsh working environment of the aero-engine blade, the performance of the aero-engine is mainly subject to the manufacturing level of the aero-engine blade.

[0003] In order to ensure the service life and performance of the aero-engine, the material of the aero-engine blade is usually made of alloy or high-temperature alloy. Due to the requirements of the aerodynamic characteristics of the blade, the blade must have strict size and surface integrity processing requirements. Therefore, the aero-engine blade needs to have reasonable processing technology and detection during the processing, so as to ensure the processing precision of the blade.

[0004] In the manufacturing process of the shaft-diameter blade in the aero-engine, the parameters of the blade shape need to be measured. The blade body of the blade has a cylindrical shaft structure at one end or both ends, and is installed on the engine ring through the cylindrical shaft to guide the gas passing through the engine flow channel.

[0005] In the existing manufacturing process of the shaft-diameter blade, due to the complexity of the blade structure, the existing clamp first positions the blade and then clamps the shaft during the measurement of the blade shape parameters. The operation procedure is complex, and the clamp is easy to loosen, difficult to install, and time-consuming. SUMMARY

[0006] The purpose of the present application is to provide a device for quickly positioning and clamping a shaft-diameter blade, so as to solve the problems of complex operation procedure, easy loosening, complex installation and long time consumption of the existing clamp when clamping the shaft-diameter blade, and to meet the timely and rapid measurement and evaluation of the blade in the production site.

[0007] The present application adopts the following technical scheme: a device for quickly positioning and clamping a shaft-diameter blade, comprising:

[0008] a lower support, a lower containing groove being horizontally and through-provided on the lower side of the lower support, and a fixing hole being vertically and through-provided on the top of the lower support,

[0009] a fixing column vertically arranged on the upper side of the lower support and integrally connected with the lower support, the axis of the fixing column coinciding with the axis of the fixing hole, the inner cavity of the fixing column being used for the shaft of the shaft-diameter blade to pass through from top to bottom and extend into the lower containing groove, and the upper edge of the fixing column being used for abutting against the lower side of the blade root margin plate of the shaft-diameter blade,

[0010] a lower clamping mechanism, located in the lower accommodating groove of the lower support, for clamping the shaft of the shaft-diameter-like blade passing through the fixed column and limiting the radial rotation of the shaft-diameter-like blade,

[0011] an upper clamping mechanism, located on the upper side of the lower support and the periphery of the fixed column, for limiting the shaft surface of the shaft-diameter-like blade.

[0012] Further, the upper clamping mechanism comprises:

[0013] a lower ring, sleeved on the periphery of the fixed column, with a first accommodating groove formed on the inner wall thereof around the circumference thereof, and a plurality of first accommodating holes formed on the outer wall of the fixed column along the radial direction of the cylindrical cross section, the plurality of first accommodating holes being arranged corresponding to the first accommodating groove,

[0014] a plurality of first steel balls, arranged corresponding to the plurality of first accommodating holes, for, when the lower ring moves downward, allowing the first accommodating groove and the first accommodating hole to correspond to each other and the first steel balls to roll outward and loosen the shaft surface of the shaft-diameter-like blade, and for, when the lower ring moves upward, allowing the first accommodating groove and the first accommodating hole to be misaligned with each other and the first steel balls to be pressed to move inward and abut against the shaft surface of the shaft-diameter-like blade to limit the shaft surface.

[0015] Further, the upper clamping mechanism further comprises:

[0016] an upper ring, sleeved on the periphery of the fixed column and located on the upper side of the lower ring, with a second accommodating groove formed on the inner wall thereof around the circumference thereof, and a third accommodating groove formed on the outer wall of the fixed column around the circumference thereof,

[0017] a plurality of second steel balls, located in the accommodating area formed by the cooperation of the second accommodating groove and the third accommodating groove, for clamping the upper ring on the periphery of the fixed column.

[0018] Further, a fourth accommodating groove is formed on the lower side wall of the upper ring, and a fifth accommodating groove is formed on the upper side wall of the lower ring, the fourth accommodating groove and the fifth accommodating groove forming a movable area by cooperation,

[0019] The upper clamping mechanism further comprises:

[0020] a power rod, horizontally arranged, with an elliptical cross section, located in the movable area formed by the fourth accommodating groove and the fifth accommodating groove, for, after being subjected to an external force, rotating to the vertical arrangement of the long side thereof to push the lower ring downward to make the lower ring move downward and thus loosen the shaft surface of the blade, and for, after being subjected to an external force, rotating to the vertical arrangement of the short side thereof to make the lower ring move upward and thus abut the second steel balls against the shaft surface of the blade.

[0021] Further, the outer edge of the upper circular ring is vertically and throughly provided with a sixth accommodating groove, and the outer edge of the lower circular ring is vertically and throughly provided with a seventh accommodating groove, the sixth accommodating groove and the seventh accommodating groove cooperatively form a restoring area,

[0022] The upper clamping mechanism further comprises two horizontally arranged fixed rods and a vertically arranged first elastic member in the restoring area, the two ends of one fixed rod are respectively abutted against the upper side of the upper circular ring, the two ends of the other fixed rod are respectively rested on the lower side of the lower circular ring, and the two ends of the first elastic member are hung on the middle portions of the two fixed rods, and the first elastic member is used to pull the lower circular ring to reset upward.

[0023] Further, the fourth accommodating groove and the fifth accommodating groove are each provided with two and symmetrically arranged, and the power rods are also provided with two, the two power rods are fixedly connected through a connecting rod, the connecting rod is semicircular and located at the periphery of the lower circular ring and the upper circular ring, and the connecting rod is used to rotate upward or downward with the line connecting the two power rods as the axis and further drive the power rods to rotate.

[0024] Further, the plurality of first accommodating holes are radially arranged, and two first steel balls are placed in each first accommodating hole, the outer first steel ball is used to roll outward and leave a moving gap for the inner first steel ball, so that the inner first steel ball is loosened from the shaft curved surface of the shaft diameter type blade, and the outer first steel ball is also used to press the inner first steel ball inward to move and abut against the shaft curved surface of the shaft diameter type blade.

[0025] Further, the lower clamping mechanism comprises:

[0026] A sliding bottom plate is horizontally arranged, and a sliding groove is throughly provided on the sliding bottom plate,

[0027] A left clamping block is fixedly connected to the left side of the sliding bottom plate, and a left clamping plate is fixedly connected to the left clamping block, the left clamping plate is used to extend into the first locking clamping groove of the shaft diameter type blade,

[0028] A right clamping block is located in the sliding groove and can slide left and right along the sliding groove, a right clamping plate is fixedly connected to the right clamping block, the right clamping plate is correspondingly arranged with the left clamping plate and used to extend into the second locking clamping groove of the shaft diameter type blade, and the right clamping plate and the left clamping plate cooperatively clamp the lower end of the shaft of the shaft diameter type blade,

[0029] A limiting plate is located at the lower side of the sliding bottom plate, the lower side of the right clamping block passes through the sliding groove and is fixedly connected with the limiting plate, and the limiting plate is used to limit the right clamping block.

[0030] Further, the lower clamping mechanism further comprises:

[0031] A baffle is located at the right side of the right clamping block, and the lower end of the baffle is fixedly connected with the right side of the sliding bottom plate,

[0032] Screw rod, horizontally arranged, left end passes through baffle and abuts against right clamping block, used for abutting against right clamping block,

[0033] Positioning pin, horizontally arranged, left end fixed on right side of left clamping block,

[0034] Second elastic member, sleeved on positioning pin, two ends fixedly connected with left clamping block and right clamping block respectively, used for pushing right clamping block to right reset.

[0035] The beneficial effects of the present application are:

[0036] 1、The present application can clamp the shaft of the shaft diameter type blade, so that the measuring device measures the blade edge plate and the blade body and other working surface parameters, and ensures that the comprehensive quality of the blade meets the requirements.

[0037] 2、The present application has a clever and compact structure, is easy to use, stable in positioning, reliable in clamping, simple in operation, and can greatly improve the detection efficiency.

[0038] 3、The present application can be moved at will after clamping the blade, and the position of the whole device can be adjusted according to the site conditions, so as to adjust the position of the blade, and has timeliness and flexibility. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 It is a sectional view of the present application;

[0040] Figure 2 It is a sectional view of the present application;

[0041] Figure 3 It is a structure schematic view of the upper clamping mechanism of the present application;

[0042] Figure 4 It is a structure schematic view of the lower clamping mechanism of the present application;

[0043] Figure 5 It is a structure schematic view of the lower support of the present application;

[0044] Figure 6 It is a structure schematic view of the blade of the present application;

[0045] Figure 7 It is a structure schematic view of the lower ring of the present application;

[0046] Figure 8 It is a position schematic view of the power rod of the present application.

[0047] 1、Lower support; 2、Fixed column; 3、Lower clamping mechanism; 4、Upper clamping mechanism; 5、Shaft diameter type blade;

[0048] 31, sliding bottom plate; 32, left clamping block; 33, limiting plate; 34, baffle; 35, screw rod; 36, positioning pin; 37, second elastic member; 38, right clamping block;

[0049] 41, lower circular ring; 42, first steel ball; 43, upper circular ring; 44, second steel ball; 45, power rod; 46, fixed rod; 47, first elastic member; 48, connecting rod;

[0050] 51, blade tip shaft; 52, blade root rim plate; 53, blade root shaft; 54, first locking clamping groove; 55, second locking clamping groove. DETAILED DESCRIPTION

[0051] The application will be described in detail below with reference to the drawings and specific embodiments.

[0052] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more. The "trend" in the present application is described according to the trend when the present application is in the Figure 1 state.

[0053] The application discloses a device for quickly positioning and clamping a shaft diameter type blade, as shown in Figure 1 and 2 , 5, which comprises a lower support 1, a fixed column 2, a lower clamping mechanism 3, and an upper clamping mechanism 4.

[0054] A lower containing groove is horizontally and throughly formed in the lower side of the lower support 1, and a fixed hole is vertically and throughly formed in the top of the lower support 1. The fixed column 2 is vertically arranged and located on the upper side of the lower support 1 and integrally connected with the lower support 1. The axis of the fixed column 2 coincides with the axis of the fixed hole. The inner cavity of the fixed column 2 is used for the shaft of the shaft diameter type blade to pass through from top to bottom and extend into the lower containing groove. The upper edge of the fixed column 2 is used for abutting against the lower side of the blade root rim plate of the shaft diameter type blade.

[0055] The lower clamping mechanism 3 is located in the lower accommodating groove of the lower support 1, and is used for clamping the shaft of the shaft diameter type blade passing through the fixed column 2 to limit the radial rotation of the shaft diameter type blade. The upper clamping mechanism 4 is located on the upper side of the lower support 1 and the periphery of the fixed column 2, and is used for limiting the shaft surface of the shaft diameter type blade.

[0056] As shown in Figure 3 , the upper clamping mechanism 4 comprises a lower ring 41 and a plurality of first steel balls 42.

[0057] The lower ring 41 is sleeved on the periphery of the fixed column 2, and a first accommodating groove is formed on the inner wall of the lower ring 41 around the circumference. A plurality of first accommodating holes are formed on the outer wall of the fixed column 2 along the radial direction of the cylindrical cross section, and the plurality of first accommodating holes are arranged corresponding to the first accommodating groove.

[0058] The plurality of first steel balls 42 are arranged in the plurality of first accommodating holes. When the lower ring 41 moves downward, the first accommodating groove and the first accommodating hole correspond to each other, and the first steel balls 42 roll outward and loosen the shaft surface of the shaft diameter type blade. When the lower ring 41 moves upward, the first accommodating groove and the first accommodating hole are misaligned with each other, and the first steel balls 42 are pressed to move inward and abut against the shaft surface of the shaft diameter type blade to limit the shaft surface.

[0059] The upper clamping mechanism 4 further comprises an upper ring 43 and a plurality of second steel balls 44.

[0060] The upper ring 43 is sleeved on the periphery of the fixed column 2 and located on the upper side of the lower ring 41. A second accommodating groove is formed on the inner wall of the upper ring 43 around the circumference. A third accommodating groove is formed on the outer wall of the fixed column 2 around the circumference.

[0061] The plurality of second steel balls 44 are located in the accommodating area formed by the cooperation of the second accommodating groove and the third accommodating groove, and the plurality of second steel balls 44 are used to clamp the upper ring 43 on the periphery of the fixed column 2.

[0062] A fourth accommodating groove is formed on the lower side wall of the upper ring 43, and a fifth accommodating groove is formed on the upper side wall of the lower ring 41. The fourth accommodating groove and the fifth accommodating groove form a movable area.

[0063] The upper clamping mechanism 4 further comprises a power rod 45. The power rod 45 is horizontally arranged, and the cross section of the power rod 45 is elliptical. The power rod 45 is located in the movable area formed by the fourth accommodating groove and the fifth accommodating groove. When the power rod 45 is rotated to the vertical arrangement of the long side under the action of external force, the lower ring 41 is pushed downward to move downward, so that the second steel balls 44 loosen the shaft surface of the blade. When the power rod 45 is rotated to the vertical arrangement of the short side under the action of external force, the lower ring 41 moves upward, so that the second steel balls 44 abut against the shaft surface of the blade.

[0064] As shown in Figure 7 and 8 The outer edge of the upper circular ring 43 is vertically provided with a sixth accommodating groove, and the outer edge of the lower circular ring 41 is vertically provided with a seventh accommodating groove. The sixth accommodating groove and the seventh accommodating groove are matched to form a restoring area. The upper clamping mechanism 4 further comprises two horizontally arranged fixed rods 46 and a vertically arranged first elastic member located in the restoring area. The two ends of one fixed rod 46 are respectively abutted against the upper side of the upper circular ring 43, and the two ends of the other fixed rod 46 are respectively rested on the lower side of the lower circular ring 41. The two ends of the first elastic member are hung on the middle part of the two fixed rods 46. The first elastic member is used to pull the lower circular ring 41 to reset upward.

[0065] The fourth accommodating groove and the fifth accommodating groove are both provided with two and symmetrically arranged. The power rod 45 is also provided with two, and the two power rods 45 are fixedly connected through a connecting rod 48. The connecting rod 48 is semicircular and located at the periphery of the lower circular ring 41 and the upper circular ring 43. The connecting rod 48 is used to rotate upward or downward with the connecting line of the two power rods 45 as the axis, thereby driving the power rod 45 to rotate.

[0066] The plurality of first accommodating holes are radially arranged, and two first steel balls 42 are placed in each first accommodating hole. The outer first steel ball 42 is used to roll outward and leave a moving gap for the inner first steel ball 42, so that the inner first steel ball 42 loosens the shaft surface of the shaft diameter type blade. The outer first steel ball 42 is also used to press the inner first steel ball 42 inward and abut against the shaft surface of the shaft diameter type blade.

[0067] As shown in Figure 4 The lower clamping mechanism 3 comprises a sliding bottom plate 31, a left clamping block 32, a right clamping block 38, and a limiting plate 33. The sliding bottom plate 31 is horizontally arranged, and a sliding groove is vertically provided in the sliding bottom plate 31. The left clamping block 32 is fixedly connected to the left side of the sliding bottom plate 31. The upper edge of the left clamping block 32 is fixedly connected with a left clamping plate, which is used to extend into the first locking clamping groove 54 of the shaft diameter type blade.

[0068] The right clamping block 38 is located in the sliding groove and can slide left and right along the sliding groove. The upper edge of the right clamping block 38 is fixedly connected with a right clamping plate, which is correspondingly arranged with the left clamping plate and used to extend into the second locking clamping groove 55 of the shaft diameter type blade. The right clamping plate and the left clamping plate are matched to clamp the lower end of the shaft of the shaft diameter type blade. The limiting plate 33 is located below the sliding bottom plate 31. The lower side of the right clamping block 38 is fixedly connected with the limiting plate 33 through the sliding groove. The limiting plate 33 is used to limit the right clamping block 38.

[0069] The lower clamping mechanism 3 further comprises a baffle 34, a screw rod 35, a positioning pin 36, and a second elastic member 37.

[0070] The baffle plate 34 is located at the right side of the right clamping block 38, and the lower end of the baffle plate 34 is fixedly connected with the right side of the sliding bottom plate 31, the screw rod 35 is horizontally arranged, the left end of the screw rod 35 penetrates through the baffle plate 34 and abuts against the right clamping block 38, the screw rod 35 is used for abutting against the right clamping block 38, the positioning pin 36 is horizontally arranged, the left end of the positioning pin 36 is fixedly connected with the right side of the left clamping block 32, the second elastic element 37 is sleeved on the positioning pin 36, and the two ends of the second elastic element 37 are fixedly connected with the left clamping block 32 and the right clamping block 38 respectively, and the second elastic element 37 is used for pushing the right clamping block 38 to reset to the right.

[0071] The lower end of the blade shaft is clamped by the lower clamping mechanism 3, the radial rotation of the blade is avoided, then the shaft surface of the blade is clamped by the upper clamping mechanism 4, and the blade is fixed in cooperation with the lower clamping mechanism 3, when the blade is clamped by the upper clamping mechanism 4, the shaft of the blade is clamped by the first steel ball 42, since the first steel ball 42 can roll in a small range, so that the shaft of the blade is not damaged even if rolling occurs during clamping, in addition, the lower circular ring 41 is pushed downward by the power rod 45, since the cross section of the power rod 45 is oval, so that when the long side of the power rod 45 rotates to the vertical state, the lower circular ring 41 is pushed downward, and the second steel ball 44 is forced to loosen the shaft of the blade, and vice versa.

[0072] The lower circular ring 41 and the upper circular ring 43 are fixed together by the two fixing rods 46 and the first elastic element 47, so that when the short side of the power rod 45 rotates to the vertical state, an upward pulling force is generated on the lower circular ring 41, and the lower circular ring 41 is forced to reset. In order to ensure that the movement of the lower circular ring 41 is stable, three recovery areas are provided, and six fixing rods 46 and three first elastic elements 47 are correspondingly provided to cooperate.

[0073] The present application can clamp double-crown type shaft diameter blades, i.e. double-crown blades, as shown in the figure, and can also clamp shaft diameter type blades with one shaft. Figure 6 The upper end and the lower end of the double-crown blade both have shafts, the upper end is a blade tip shaft 51, the lower end is a blade root shaft 53, a blade root edge plate 52 is horizontally arranged near the blade root shaft 53, and the first locking clamping groove 54 and the second locking clamping groove 55 are respectively arranged on the left side and the right side of the lower end of the blade root shaft 53.

[0074] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for quickly positioning and clamping shaft diameter blades, characterized in that, include: The lower support (1) has a horizontally penetrating lower receiving groove on its lower side and a vertically penetrating fixing hole on its top. A fixing column (2) is vertically arranged, located on the upper side of the lower support (1), and integrally connected with the lower support (1). Its axis coincides with the axis of the fixing hole. The inner cavity of the fixing column (2) is used for the shaft of the axial diameter blade to pass through from top to bottom and extend into the lower receiving groove. The upper edge of the fixing column (2) is used to abut against the lower side of the blade root edge plate of the axial diameter blade. The lower clamping mechanism (3), located in the lower receiving groove of the lower support (1), is used to clamp the shaft of the diameter-type blade passing through the fixed column (2) and restrict the radial rotation of the diameter-type blade. The upper clamping mechanism (4) is located on the upper side of the lower support (1) and on the periphery of the fixing column (2), and is used to limit the axial curved surface of the shaft diameter type blade; The upper card holding mechanism (4) includes: The lower ring (41) is sleeved around the periphery of the fixed post (2). A first receiving groove is formed around its inner wall. Multiple first receiving holes are formed radially through the outer wall of the fixed post (2) along the cylindrical cross-section. The multiple first receiving holes are arranged corresponding to the first receiving groove. Multiple first steel balls (42) are placed in multiple first receiving holes. When the lower ring (41) moves downward, the first receiving groove and the first receiving hole correspond to each other, and the first steel balls (42) roll outward and loosen the axial curved surface of the shaft diameter blade. When the lower ring (41) moves upward, the first receiving groove and the first receiving hole are misaligned, and the first steel balls (42) are pressed inward and pressed against the axial curved surface of the shaft diameter blade to limit their movement.

2. The device for quickly positioning and clamping shaft diameter blades according to claim 1, characterized in that, The upper card holding mechanism (4) also includes: The upper ring (43) is sleeved around the periphery of the fixed post (2) and located above the lower ring (41). A second receiving groove is formed around its inner wall, and a third receiving groove is formed around its outer wall. Multiple second steel balls (44) are located in the receiving area formed by the cooperation of the second and third receiving grooves, and are used to hold the upper ring (43) around the fixed post (2).

3. The device for quickly positioning and clamping shaft diameter blades according to claim 2, characterized in that, The lower sidewall of the upper ring (43) is provided with a fourth receiving groove, and the upper sidewall of the lower ring (41) is provided with a fifth receiving groove. The fourth and fifth receiving grooves cooperate with each other to form an active area. The upper card holding mechanism (4) also includes: The power rod (45) is horizontally set and has an elliptical cross-section. It is located in the active area formed by the fourth and fifth receiving grooves. When it is rotated to a vertical position after being subjected to external force, it pushes the lower ring (41) downward so that the lower ring (41) moves downward so that the second steel ball (44) releases the axial curved surface of the blade. It is also used to move the lower ring (41) upward so that the second steel ball (44) presses against the axial curved surface of the blade when it is rotated to a vertical position after being subjected to external force.

4. The device for quickly positioning and clamping shaft diameter blades according to claim 3, characterized in that, The upper ring (43) has a sixth receiving groove vertically extending through its outer edge, and the lower ring (41) has a seventh receiving groove vertically extending through its outer edge. The sixth and seventh receiving grooves cooperate to form a recovery area. The upper clamping mechanism (4) further includes: two horizontally arranged fixing rods (46) located in the recovery area and a vertically arranged first elastic member. The two ends of one fixing rod (46) abut against the upper side of the upper ring (43), and the two ends of the other fixing rod (46) rest on the lower side of the lower ring (41). The two ends of the first elastic member are hung in the middle of the two fixing rods (46). The first elastic member is used to pull the lower ring (41) upward to reset.

5. The device for quickly positioning and clamping shaft diameter blades according to claim 3, characterized in that, The fourth and fifth receiving slots each have two slots, which are arranged symmetrically to each other. There are also two power rods (45). The two power rods (45) are fixedly connected by a connecting rod (48). The connecting rod (48) is semi-circular and located on the periphery of the lower ring (41) and the upper ring (43). The connecting rod (48) is used to rotate upward or downward about the line connecting the two power rods (45) as the axis, thereby driving the power rod (45) to rotate.

6. The device for quickly positioning and clamping shaft diameter blades according to claim 1, characterized in that, Multiple first receiving holes are arranged radially, and two first steel balls (42) are placed in each first receiving hole. The outer first steel ball (42) is used to roll outward and leave a gap for the inner first steel ball (42) to move, so that the inner first steel ball (42) loosens the axial curved surface of the axial blade. The outer first steel ball (42) is also used to press the inner first steel ball (42) inward to move inward and abut against the axial curved surface of the axial blade.

7. The device for quickly positioning and clamping shaft diameter blades according to claim 1, characterized in that, The lower card holding mechanism (3) includes: A sliding base plate (31) is horizontally positioned, with a sliding groove extending through it. The left locking block (32) is fixedly connected to the left side of the sliding base plate (31), and a left locking plate is fixedly connected to its upper edge. The left locking plate is used to extend into the first locking groove (54) of the shaft diameter type blade. The right locking block (38) is located in the sliding groove and can slide left and right along the sliding groove. A right locking plate is fixedly connected to its upper edge. The right locking plate is correspondingly arranged with the left locking plate and is used to extend into the second locking groove (55) of the shaft diameter type blade, and cooperates with the left locking plate to lock the lower end of the shaft of the shaft diameter type blade. The limiting plate (33) is located on the lower side of the sliding base plate (31). The lower side of the right locking block (38) passes through the sliding groove and is fixedly connected to the limiting plate (33) for limiting the right locking block (38).

8. The device for quickly positioning and clamping shaft diameter blades according to claim 7, characterized in that, The lower card holding mechanism (3) also includes: The baffle (34) is located on the right side of the right locking block (38), and its lower end is fixedly connected to the right side of the sliding base plate (31). The screw (35) is set horizontally, with its left end passing through the baffle (34) and abutting against the right locking block (38) to secure the right locking block (38). The positioning pin (36) is horizontally positioned, with its left end fixed to the right side of the left locking block (32). The second elastic element (37) is sleeved on the positioning pin (36), and its two ends are fixedly connected to the left locking block (32) and the right locking block (38) respectively, for pushing the right locking block (38) to reset to the right.

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