Turbine blade module clamping mechanism

Abstract

The utility model relates to a turbine blade module clamping mechanism, which comprises a pneumatic rotating joint, a connecting plate, a pneumatic clamping jaw and a positioning disc, the pneumatic rotating joint is connected with the positioning disc through the connecting plate, and the positioning disc is used for positively positioning a mould shell; a counter bore is formed in the upper end face of the positioning disc in an inwards-concave mode, and the multiple pairs of pneumatic clamping jaws are arranged on the inner side of the counter bore and used for positioning and clamping a sprue cup. The mold shell upside-down positioning device has the advantages that the mold shell can be upside-down positioned and clamped through the pneumatic clamping jaw structure arranged on the positioning disc on the rotary clamping device, the problem of upside-down positioning operation of the mold shell is solved, operation is convenient, time and labor are saved, and quality risks caused by manual violent operation can be effectively prevented; forward positioning of the mold shell is achieved through the positioning disc. And meanwhile, the large-diameter positioning disc is installed on the pneumatic rotating connector through the connecting plate, and the pneumatic clamping jaw is arranged on the positioning disc, so that the requirement for the clamping bar diameter of a large-size part is met.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping equipment for investment casting blade shells, and particularly relates to a clamping mechanism for a turbine blade module. Background Technique

[0002] At present, after the wax pattern module for investment casting is coated and shelled, the shell of the mold shell bottom plate must be knocked out and cleaned before dewaxing to ensure smooth dewaxing. The existing operation is to centrally place the mold shells on a wire mesh trolley and operate by manually controlling the rotation and flipping actions of the module. During this process, the module cannot be fixed and positioned. The operation process is simple and rough, the control is not precise, it is easy to cause damage to the shell, the quality risk is high, and the knocked-out shell slag splashes everywhere and cannot be collected.

[0003] After the mold shell is dewaxed and baked, a shell is formed. Before pouring, there is a shell preparation operation for the shell. It is necessary to clean the burrs on the four peripheral edges of the mold shell bottom plate, then polish the flatness of the bottom plate and calibrate the flatness with a special flat plate. At the same time, it is necessary to use a caliper to check whether the size of the bottom plate fits the crystallizer of the melting furnace. The existing shell preparation operation only has a simple free turntable, which cannot perform an inversion positioning operation on the shell, and many auxiliary tools need to be prepared for measurement. The efficiency is low, the operation is laborious, and the safety level is low.

[0004] The rotary air cylinder turntables on the market cannot meet the clamping rod diameter of large-sized parts, and can only clamp small products. They cannot meet 360° free rotation and can only rotate reciprocally by 180°. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a clamping mechanism for a turbine blade module, which can simultaneously complete the production of the dewaxing window of the mold shell and the shell preparation before melting and pouring, is applicable to single crystal / oriented crystal / isometric crystal shells, and solves at least one of the technical problems mentioned in the background technique.

[0006] The technical solution for the utility model to solve the above technical problems is as follows: A clamping mechanism for a turbine blade module, comprising: a pneumatic rotary joint, a connecting plate, pneumatic grippers, and a positioning disk. The pneumatic rotary joint is connected to the positioning disk through the connecting plate, and the positioning disk is used for positive positioning of the mold shell.

[0007] A sunken hole is concavely arranged on the upper end surface of the positioning disk, and multiple pairs of pneumatic grippers are arranged inside the sunken hole. The multiple pairs of pneumatic grippers are used for positioning and clamping the pouring cup.

[0008] The beneficial effects of the present utility model are as follows: Through the pneumatic gripper structure arranged on the positioning disk of the rotary clamping device, the mold shell can be inversely positioned and clamped, solving the problem of the inverse positioning operation of the mold shell, being convenient for operation, time-saving and labor-saving, and effectively preventing the quality risks brought by manual violent operation; the positive positioning of the mold shell is realized through the positioning disk; at the same time, a large-diameter positioning disk is installed on the pneumatic rotary joint through a connecting plate, and pneumatic grippers are arranged on the positioning disk to meet the clamping bar diameter requirements of large-sized parts.

[0009] On the basis of the above technical solution, the present utility model can also be improved as follows.

[0010] Furthermore, it further includes: an air source control component, a pneumatic solenoid valve, and a telescopic cylinder. The front end of the air source control component is connected to the pneumatic solenoid valve, and the solenoid valve is connected to the telescopic cylinder.

[0011] The beneficial effect of adopting the above further solution is that the air source control component is responsible for providing a stable air pressure source to ensure that the telescopic cylinder can work continuously and stably. The pneumatic solenoid valve controls the on-off and direction of the air flow, thereby realizing the control of the telescopic cylinder.

[0012] Furthermore, each pneumatic gripper is connected to one telescopic cylinder, and the telescopic cylinder is used to control the action of the pneumatic gripper to clamp or release the sprue cup.

[0013] The beneficial effect of adopting the above further solution is that the pneumatic solenoid valve controls the gas flow direction of the telescopic cylinder by changing the air flow direction, thereby controlling the pneumatic gripper at the end. By controlling multiple pairs of pneumatic grippers to move closer to or away from each other, the clamping or releasing of the sprue cup is realized.

[0014] Furthermore, the pneumatic rotary joint includes: an upper part and a lower part. The lower part is a fixed end, and the lower part contains multiple air inlet pipe joints; the upper part is a rotating end, and the upper part contains multiple air outlet pipe joints.

[0015] The beneficial effect of adopting the above further solution is that the pneumatic rotary joint can drive the part above the pneumatic rotary joint to rotate continuously and infinitely, ensuring that air pipes, electric wires, etc. are not wound and knotted.

[0016] Furthermore, the air source control component is communicated with the air inlet pipe joint, and the air outlet pipe joint is communicated with the telescopic cylinder.

[0017] The beneficial effect of adopting the above further solution is that four telescopic cylinders are controlled through two groups of air paths, and the four telescopic cylinders are symmetrically distributed around the center, thereby realizing the clamping or releasing of the pneumatic gripper and ensuring more stable clamping of the mold shell sprue cup.

[0018] Further, a two-way disc damper is provided on the pneumatic rotary joint.

[0019] The beneficial effect of adopting the above further solution is that when the formwork rotates, while ensuring smooth and silky movement, the formwork will not shift due to excessive speed.

[0020] Further, the upper part of the pneumatic rotary joint is connected to the lower end face of the connecting plate, the upper end face of the connecting plate is connected to the lower end face of the positioning disc, and a rotary bearing is also provided on the lower end face of the positioning disc around the connecting plate. The positioning disc drives the rotary bearing to rotate;

[0021] One telescopic cylinder is provided on each side wall of the connecting plate.

[0022] The beneficial effect of adopting the above further solution is that by combining the pneumatic rotary joint with the rotary bearing and the positioning disc, the problem of insufficient clamping cylinder diameter of the rotary cylinder is solved. The positioning disc and the rotary bearing can rotate infinitely freely together under the drive of the pneumatic rotary joint, making the rotation of the formwork not restricted by direction, which is more conducive to the operation of workers and meets the operation requirements for different angles of the formwork.

[0023] Further, the pneumatic rotary joint, the connecting plate and the positioning disc are all of a hollow cylindrical hole structure;

[0024] A blanking sealing joint is provided below the pneumatic rotary joint, and the blanking sealing joint is of a hollow structure.

[0025] The beneficial effect of adopting the above further solution is that by setting the clamping mechanism as a whole into a hollow structure, the shell slag dust on the positioning disc can be introduced into the bottom of the blanking sealing joint through the central cylindrical hole, solving the problem of shell slag dust splashing everywhere. At the same time, the problem of positioning the pouring gate rod on the formwork is solved. The hollow structure of the blanking sealing joint can limit the dust, and the shell slag dust generated at the upper end of the positioning disc can be introduced into the special slag collection position through the hollow position.

[0026] Further, a stepped first plane and a second plane are provided on the upper end face of the positioning disc in the direction close to the connecting plate. The first plane and the second plane are coaxially arranged. The diameter of the first plane is smaller than that of the second plane, and the diameter of the first plane matches the size of the formwork bottom plate;

[0027] Diameter scales are provided on the first plane.

[0028] The beneficial effects of adopting the above further solution are as follows: By integrating the inspection of the diameter size and flatness of the positioning disk base plate, the problems of numerous auxiliary tools and low measurement efficiency are solved, auxiliary tools are saved, and it is convenient to grind and clean the flash or excess parts of the four peripheral edges of the mold shell base plate that exceed the positioning disk in a timely manner, preventing the mold shell from exceeding the crystallizer.

[0029] Further, a silica gel pad is provided at the clamping end of the pneumatic gripper, and the heights of both the pneumatic gripper and the silica gel pad match the height of the cylindrical surface of the pouring cup.

[0030] The beneficial effects of adopting the above further solution are as follows: The setting of the silica gel pad enables the pneumatic gripper to have a certain buffering effect during the clamping of the pouring cup of the mold shell, avoiding cracking of the pouring cup caused by uneven clamping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0032] Figure 2 is the front view of an embodiment of the present invention;

[0033] Figure 3 is a schematic diagram of the structure from another perspective of an embodiment of the present invention.

[0034] In the drawings, the list of components represented by each reference numeral is as follows:

[0035] 1, pneumatic gripper; 2, positioning disk; 3, rotary bearing; 4, telescopic cylinder; 5, connecting plate; 6, pneumatic rotary joint; 7, blanking seal joint. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0037] As Figure 1-2As shown in the figure, the utility model provides a clamping mechanism for a turbine blade module, which is applicable to the rotary clamping of single crystal, directionally solidified crystal or equiaxed crystal type shells, and can simultaneously complete the production of dewaxing windows of the shell and the pre-shell preparation before melting and pouring. After the module is coated to form a shell, the shell includes: a pouring cup, a pouring rod, a bottom plate and a model. The specific clamping mechanism includes: a pneumatic rotary joint 6, a connecting plate 5, pneumatic jaws 1 and a positioning disk 2. The pneumatic rotary joint 6 is connected to the positioning disk 2 through the connecting plate 5. The upper end face of the positioning disk 2 is recessed with a counterbore, and multiple pairs of pneumatic jaws 1 are evenly arranged on the inner side of the counterbore. The diameter of the positioning disk 2 is larger than that of the pneumatic rotary joint 6. When the shell is placed upright on the positioning disk 2, the positive positioning of the shell is realized through the positioning disk 2. When the shell is inverted, the positioning and clamping of the pouring cup in the other direction on the shell can be realized through the pneumatic jaws 1. The outer wall of the upper end face of the pouring cup just gets stuck between the pneumatic jaws 1 in the counterbore on the upper end face of the positioning disk 2 and is clamped by the pneumatic jaws 1.

[0038] In the above solution, through the pneumatic jaw 1 structure arranged on the positioning disk 2 of the rotary clamping device, the inverted positioning and clamping of the shell can be carried out, solving the problem of the inverted positioning operation of the shell, being convenient for operation, time-saving and labor-saving, and effectively preventing the quality risk brought by manual violent operation; the positive positioning of the shell is realized through the positioning disk 2; at the same time, a large-diameter positioning disk 2 is installed on the pneumatic rotary joint 6 through the connecting plate 5, and pneumatic jaws 1 are arranged on the positioning disk 2 to meet the clamping bar diameter requirements of large-sized parts.

[0039] In this embodiment, the clamping mechanism further includes: a gas source control component, a pneumatic solenoid valve and a telescopic cylinder 4. The front end of the gas source control component is connected to the pneumatic solenoid valve, and the pneumatic solenoid valve is connected to the telescopic cylinder 4. The telescopic cylinder 4 is controlled to act through the pneumatic solenoid valve. In some feasible embodiments, the pneumatic solenoid valve is integrated on the gas source control component, and the gas source control component can adopt a gas source processor. The gas source control component is responsible for providing a stable air pressure source to ensure that the telescopic cylinder 4 can work continuously and stably. The on-off and direction of the air flow are controlled through the pneumatic solenoid valve, so as to realize the control of the telescopic cylinder 4.

[0040] In a further solution, each pneumatic jaw 1 is connected to a telescopic cylinder 4. In this embodiment, a total of 4 pneumatic jaws 1 and 4 telescopic cylinders 4 are provided. The pneumatic jaws 1 are arranged at the ends of the telescopic cylinders 4. The pneumatic solenoid valve controls the gas flow direction of the telescopic cylinder 4 through air flow reversal, so as to control the pneumatic jaws 1 at the ends. The clamping or loosening of the pouring cup is realized by controlling the movement of multiple pairs of pneumatic jaws 1 approaching or departing from each other.

[0041] As Figure 1-2As shown, in the preferred solution, the pneumatic rotary joint 6 is divided into upper and lower parts. The lower part is the fixed end, which contains multiple inlet pipe joints; the upper part is the rotating end, which contains multiple outlet pipe joints. The lower part has two inlet pipe structures, and the upper part has two outlet pipe structures. The upper part can rotate. Since the structure of the pneumatic rotary joint 6 has been well introduced in the prior art, it will not be repeated here. The pneumatic rotary joint 6 is relatively large in volume and has an oil filling port. A pulse type oil injection device can also be added. The relatively large pneumatic rotary joint 6 itself contains a relatively large amount of grease inside and does not require high-frequency oil injection. If the pulse type controlled oil injection method is adopted, it can also ensure the sealing and lubrication of the rotating contact surface and extend the service life of the mechanism.

[0042] In the above solution, the part above the pneumatic rotary joint 6 can be driven to rotate continuously and infinitely through the pneumatic rotary joint 6, ensuring that the air pipes, electric wires, etc. are not wound and knotted.

[0043] In this embodiment, the end of the air source control component is connected to the two inlet pipe joints of the pneumatic rotary joint 6, and the upper outlet pipe joint is connected to the four telescopic cylinders 4. Two groups of air circuits control the four telescopic cylinders 4, and the ends of the telescopic cylinders 4 are connected to the pneumatic gripper 1. The air source control component passes compressed gas into the pneumatic rotary joint 6, and the compressed gas is transmitted to the four telescopic cylinders 4 through the two groups of air circuits.

[0044] In the above solution, the four telescopic cylinders 4 are controlled by two groups of air circuits respectively, and the four telescopic cylinders 4 are symmetrically distributed around the center, so as to realize the clamping or loosening of the pneumatic gripper 1 and ensure more stable clamping of the mold shell pouring cup.

[0045] The pneumatic rotary joint 6 of this embodiment is equipped with a two-way disc damper, so that when the mold shell rotates, while ensuring smooth and silky movement, the mold shell will not shift due to excessive speed.

[0046] Such as Figure 1-2As shown in the figure, the clamping mechanism further includes: a rotary bearing 3, where the rotary bearing 3 is installed below the positioning disk 2. The upper part of the rotary bearing 3 is fixed to the positioning disk 2 by bolt fasteners. The middle part below the positioning disk 2 is connected to the upper end face of the connecting plate 5. In this embodiment, the rotary bearing 3 is arranged in a ring around the connecting plate 5. The lower end face of the connecting plate 5 is connected to the upper part of the pneumatic rotary joint 6. A telescopic cylinder 4 is respectively arranged on each side wall of the connecting plate 5. Each telescopic cylinder 4 is arranged horizontally, so that the expansion and contraction of the telescopic cylinder 4 is also along the horizontal direction. The lower part of the jaw is connected to the movable end of the telescopic cylinder 4. The upper part of the jaw is higher than the telescopic cylinder 4 and extends a jaw head in the direction close to the connected telescopic cylinder 4. The piston in the telescopic cylinder 4 is connected to the crank and the pneumatic jaw 1, and the sprue cup is clamped by the pneumatic jaw 1. In this way, the pneumatic rotary joint 6 drives the connecting plate 5, the positioning disk 2 located on the connecting plate 5, and the rotary bearing 3 to rotate together.

[0047] In the above solution, by combining the pneumatic rotary joint 6 with the rotary bearing 3 and the positioning disk 2, the problem of insufficient clamping cylinder diameter of the rotary cylinder is solved. The positioning disk 2 and the rotary bearing 3 can rotate freely infinitely together under the drive of the pneumatic rotary joint 6, so that the rotation of the mold shell is not restricted by direction, which is more conducive to the operation of workers and meets the operation requirements for different angles of the mold shell.

[0048] As Figure 1 , Figure 3 shown in the figure, in a preferred solution, the pneumatic rotary joint 6, the connecting plate 5, and the positioning disk 2 are all hollow cylindrical hole structures. The size of the cylindrical hole is slightly larger than the sprue rod of the mold shell. The sprue rod in the mold shell is arranged in the middle of the whole and penetrates through the entire mold shell. When the mold unit is inverted, the sprue rod is inserted into the above-mentioned cylindrical hole structure, and the mold shell can be fixed bidirectionally through the sprue rod and the sprue cup when the mold shell is inverted. At the same time, the shell slag dust cleaned can be introduced into the bottom of the blanking sealing joint 7 through the central cylindrical hole. The blanking sealing joint 7 is arranged below the pneumatic rotary joint 6. The blanking sealing joint 7 is also a hollow structure. The blanking sealing joint 7 is connected to the lower end of the pneumatic rotary joint 6 to play a fixing role, and the collection of dust is realized through the hollow blanking sealing joint 7. It can be imagined that the blanking sealing joint 7 can be connected to the shell of other equipment, and by connecting to the equipment shell, foreign matters such as shell slag dust are prevented from invading the interior of the mechanism.

[0049] In the above solution, by setting the whole clamping mechanism as a hollow structure, the shell slag dust on the positioning disk 2 can be introduced into the bottom of the blanking sealing joint 7 through the central cylindrical hole, solving the problem of shell slag dust splashing everywhere, and at the same time solving the problem of positioning the sprue rod on the mold shell. The hollow structure of the blanking sealing joint 7 can limit the dust, and the shell slag dust generated at the upper end of the positioning disk 2 can be introduced into the special slag collection position through the hollow position.

[0050] AsFigure 1 As shown, in this embodiment, a stepped first plane and a second plane are arranged on the upper end surface of the positioning disk 2 facing the direction close to the connecting plate 5. The first plane of the positioning disk 2 is the same size as the crystallizer of the melting furnace, both are standard sizes, and are quite equivalent to the size of the mold shell bottom plate. When the mold shell is placed on the positioning disk 2 in the forward direction, the mold shell bottom plate is attached to the first plane. And because the first plane is quite equivalent to the size of the mold shell bottom plate, it is convenient to timely grind and clean the flash or redundant parts exceeding the first plane, preventing the mold shell from exceeding the crystallizer. At the same time, the flatness and strength of the first plane on the positioning disk 2 in contact with the mold shell bottom plate are extremely high and not easy to deform. Furthermore, the size and flatness of the mold shell bottom plate can be measured through the positioning disk 2, so as to timely grind and calibrate. Further, a diameter scale is also arranged on the first plane of the positioning disk 2, and the diameter scale is not shown in the figure, which can realize the precise positioning of the mold shell in the forward direction.

[0051] In the above solution, by integrating the inspection of the bottom plate diameter size and flatness on the positioning disk 2, the problems of many auxiliary tools and low measurement efficiency are solved, saving auxiliary tools, and facilitating the timely grinding and cleaning of the flash or redundant parts on the four peripheral edges of the mold shell bottom plate exceeding the positioning disk 2, preventing the mold shell from exceeding the crystallizer.

[0052] In a preferred solution, a silica gel pad is arranged at the clamping end of the pneumatic gripper 1, and the heights of both the pneumatic gripper 1 and the silica gel pad match the cylindrical surface of the pouring cup. The pneumatic gripper 1 is clamped at the cylindrical surface. In this embodiment, the end of the pneumatic gripper 1 that clamps the object is defined as the clamping end of the pneumatic gripper 1. The setting of the silica gel pad enables a certain buffering effect for the surface contact when the pneumatic gripper 1 clamps the pouring cup of the mold shell, and can avoid the cracking of the pouring cup caused by uneven clamping force.

[0053] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0054] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0055] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0056] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0057] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0058] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A clamping mechanism for a turbine blade module, characterized in that, Including: A pneumatic rotary joint (6), a connecting plate (5), a pneumatic gripper (1) and a positioning disc (2). The pneumatic rotary joint (6) is connected to the positioning disc (2) through the connecting plate (5), and the positioning disc (2) is used for positive positioning of the mold shell. A counterbore is concavely provided on the upper end surface of the positioning disc (2), and a plurality of pairs of the pneumatic grippers (1) are arranged inside the counterbore. The plurality of pairs of the pneumatic grippers (1) are used for positioning and clamping the pouring cup.

2. The clamping mechanism for a turbine blade module according to claim 1, characterized in that, Also including: An air source control assembly, a pneumatic solenoid valve and a telescopic cylinder (4). The front end of the air source control assembly is connected to the pneumatic solenoid valve, and the solenoid valve is connected to the telescopic cylinder (4).

3. The clamping mechanism for a turbine blade module according to claim 2, characterized in that, Each pneumatic gripper (1) is connected to one telescopic cylinder (4), and the telescopic cylinder (4) is used to control the action of the pneumatic gripper (1) to clamp or release the pouring cup.

4. The clamping mechanism for a turbine blade module according to claim 2, characterized in that, The pneumatic rotary joint (6) includes an upper part and a lower part. The lower part is a fixed end, and a plurality of intake pipe joints are contained inside the lower part; the upper part is a rotating end, and a plurality of outlet pipe joints are contained inside the upper part.

5. The clamping mechanism for a turbine blade module according to claim 4, wherein The air source control assembly is communicated with the intake pipe joints, and the outlet pipe joints are communicated with the telescopic cylinder (4).

6. The clamping mechanism for a turbine blade module according to claim 1, characterized in that, A two-way disc damper is arranged on the pneumatic rotary joint (6).

7. The clamping mechanism for a turbine blade module according to claim 2, wherein The upper part of the pneumatic rotary joint (6) is connected to the lower end surface of the connecting plate (5), the upper end surface of the connecting plate (5) is connected to the lower end surface of the positioning disc (2), and a rotary bearing (3) is further arranged on the lower end surface of the positioning disc (2) around the connecting plate (5). The positioning disc (2) drives the rotary bearing (3) to rotate. One telescopic cylinder (4) is arranged on each side wall of the connecting plate (5).

8. The clamping mechanism for a turbine blade module according to claim 7, wherein, The pneumatic rotary joint (6), the connecting plate (5) and the positioning disc (2) are all of a hollow cylindrical hole structure. A blanking sealing joint (7) is arranged below the pneumatic rotary joint (6), and the blanking sealing joint (7) is of a hollow structure.

9. The clamping mechanism for a turbine blade module according to any one of claims 1-8, characterized in that, The upper end surface of the positioning disc (2) is provided with a stepped first plane and a second plane in the direction close to the connecting plate (5). The first plane and the second plane are coaxially arranged. The diameter of the first plane is smaller than that of the second plane, and the diameter of the first plane matches the size of the mold shell bottom plate. Diameter scales are arranged on the first plane.

10. The clamping mechanism for a turbine blade module according to claim 9, wherein A silica gel pad is arranged at the clamping end of the pneumatic gripper (1), and the heights of the pneumatic gripper (1) and the silica gel pad both match the height of the cylindrical surface of the pouring cup.

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