Turbine intermediate taking jig

Abstract

The utility model provides a turbine intermediate piece taking jig which comprises a base plate and a clamping mechanism arranged on the base plate, the clamping mechanism comprises a pneumatic three-jaw chuck installed on the base plate and three clamping portions arranged on clamping jaws of the pneumatic three-jaw chuck in a one-to-one correspondence mode, a clamping area is formed among the three clamping portions, and the three clamping portions are arranged on the base plate in a one-to-one correspondence mode. An annular base is fixedly arranged on a body of the pneumatic three-jaw chuck, a pushing block is arranged on the annular base in a lifting mode, the pushing block is located in the clamping area, and an elastic connecting mechanism used for pushing the pushing block outwards is arranged between the pushing block and the annular base. When a turbine intermediate is clamped and assembled on a bearing, the turbine intermediate can be perfectly attached to the assembling end face of the bearing.

Description

Technical Field

[0001] The utility model relates to the technical field of material taking jigs, in particular to a turbine intermediate body taking jig. Background Art

[0002] As a crucial component of a turbocharger, turbine intermediates require efficient and safe removal and assembly operations during processing. Currently, the CNC lathe industry generally uses industrial robots in conjunction with pneumatic three-jaw chucks to remove parts to improve production efficiency. However, existing pneumatic three-jaw chucks have the following drawbacks when assembling turbine intermediates onto bearings: after the turbine intermediate is assembled onto the bearing using a three-jaw chuck through a tacking process, its assembly end face cannot fully align with the assembly end face of the bearing, requiring additional manual operation, which affects operational efficiency and machining accuracy. Utility Model Content

[0003] The purpose of the utility model is to solve the defects in the prior art and provide a turbine intermediate body removal jig that can achieve perfect fit between the turbine intermediate body and the bearing assembly end face.

[0004] In order to solve the above problems, the utility model provides a turbine intermediate body removal jig, including a base plate and a clamping mechanism arranged on the base plate, the clamping mechanism includes a pneumatic three-jaw chuck installed on the base plate and three clamping parts arranged one by one on the clamping jaws of the pneumatic three-jaw chuck, a clamping area is formed between the three clamping parts, an annular seat is fixed on the body of the pneumatic three-jaw chuck, a pushing block is provided on the annular seat for lifting and lowering, the pushing block is located in the clamping area, and an elastic connection mechanism for pushing the pushing block outward is provided between the pushing block and the annular seat.

[0005] Compared with the existing technology, the benefits of the present invention are as follows: the turbine intermediate body removal jig of the present invention adopts the design of a push block and an elastic connection mechanism, which achieves a perfect fit between the turbine intermediate body and the bearing assembly end face, without the need for manual intervention, and significantly improves the working efficiency and processing accuracy. When removing the parts, the pneumatic three-jaw chuck clamps the turbine intermediate body through the three clamping parts on the clamping jaws, and at the same time compresses the elastic parts in the elastic connection mechanism. During assembly, the industrial robot moves the turbine intermediate body to the bearing position and sleeves it on the bearing. At this time, the clamping jaws of the pneumatic three-jaw chuck are released, and the elastic parts in the elastic connection mechanism in a compressed state release the elastic force, pushing the push block outward, applying axial thrust to the turbine intermediate body, so that it is completely fitted with the bearing assembly end face. This design avoids the problem of non-fitting of the assembly end face when the turbine intermediate body is assembled to the bearing in the traditional method, simplifies the operation process, improves assembly accuracy and efficiency, and significantly improves production efficiency and product quality.

[0006] As an improvement, the push block includes three evenly distributed push arms, which are spaced between two adjacent clamping parts and have integrally formed inner ends. The elastic connection mechanism includes a guide post fixed to the outer end of the push arm and a spring sleeved on the guide post. The annular seat is provided with a guide hole for the guide post to be inserted. The guide post limiter is set in the guide hole, and the spring compression is set between the push arm and the annular seat. This improved solution uses three evenly distributed push arms to form the push block, and constructs an elastic connection mechanism through the guide post and spring to achieve stability and uniform thrust of the push block. The push arms are spaced between adjacent clamping parts and have integrally formed inner ends, which effectively prevents the turbine intermediate body from shifting during assembly and improves assembly accuracy and efficiency. The spring is used to push the push block outward. The combined structure of the guide post and spring is simple, easy to implement, and low-cost.

[0007] As an improvement, the push arm is fixed with at least one locating pin, which is inserted into a process hole in the turbine intermediate component. The locating pin extends upward from the top of the push arm. This improved solution provides a locating pin on the push arm for insertion into the process hole of the turbine intermediate component, ensuring that the turbine intermediate component is always accurately positioned during removal and assembly. The locating pin effectively prevents the turbine intermediate component from rotating and misaligning on the bearing when the push block ejects the turbine intermediate component, ensuring a perfect fit between the turbine intermediate component and the bearing, further improving the assembly accuracy and reliability of the product.

[0008] As an improvement, a spacing adjustment locking mechanism for adjusting and locking the size of the clamping area is provided between the pneumatic three-jaw chuck and the clamping part, the spacing adjustment locking mechanism includes a fixing block fixed to the clamping jaws of the pneumatic three-jaw chuck and at least two bolt and nut assemblies arranged between the fixing block and the clamping part, the clamping part is located at the top of the fixing block, one side of the bottom of the clamping part has an upper connecting part protruding downward, an upper step is formed between the upper connecting part and the other side of the bottom of the clamping part, one side of the top of the fixing block has a lower connecting part protruding upward, and a lower step is formed between the lower connecting part and the other side of the top of the fixing block, the upper connecting part and the lower connecting part are arranged side by side left and right, the lower step is used to support the upper connecting part, and the upper step is used to support the lower connecting part, and the lower connecting part is provided with at least two positioning holes distributed at intervals along the radial direction of the annular seat, and the upper connecting part has a positioning groove extending along the radial direction of the annular seat, and the bolts of the bolt and nut assembly are inserted into the positioning holes and the positioning grooves at the same time and fixed. After applying this structure, the size of the clamping area is adjusted by overlapping the positioning holes on the lower connecting part with different positions of the positioning grooves on the upper connecting part in the radial direction. After the size of the clamping area is determined, the fixing block and the clamping part are fixed by the bolt and nut assembly, thereby achieving the function of locking the size of the clamping area. The clamping part is located at the top of the fixing block and is tightly connected to the fixing block through the support structure of the upper and lower steps and the protrusion, which enhances the connection strength and makes the clamping part more firmly set on the fixing block. This structural design not only ensures the stability of the spacing adjustment, but also provides precise positioning holes and positioning grooves for the bolt and nut assembly, which is convenient and quick to adjust the spacing. After the size of the clamping area is adjustable, the turbine intermediate body removal jig can firmly clamp turbine intermediate bodies of different sizes. The turbine intermediate body will not slip or fall off during the clamping process, which improves the stability and safety of the clamping process.

[0009] As an improvement, an upper rack extending radially from the annular seat is fixed to the surface of the upper step, and a lower rack extending radially from the annular seat is fixed to the top of the lower connecting portion. The upper and lower racks mesh with each other. This improved structure, through the meshing of the upper and lower racks, effectively prevents radial movement of the clamping portion relative to the fixed block after the clamping area size is adjusted. This helps to strengthen the radial fixing strength of the bolt and nut assembly, ensures the clamping portion's clamping strength on the turbine intermediate body, prevents the turbine intermediate body from loosening due to a loose bolt and nut assembly, and further improves the stability and safety of the clamping process.

[0010] As an improvement, the bottom of the upper connecting portion has an upper extension extending toward the lower connecting portion, the lower connecting portion is provided with a lower receiving groove for accommodating the upper extension, the top of the upper extension is aligned with the upper groove edge of the lower receiving groove, the top of the lower connecting portion has a lower extension extending toward the upper connecting portion, the upper connecting portion is provided with an upper receiving groove for accommodating the lower extension, the bottom of the lower extension is aligned with the lower groove edge of the upper receiving groove, the lower groove edge of the upper receiving groove coincides with the bottom of the lower extension, and the upper groove edge of the lower receiving groove coincides with the top of the upper extension. This improved structure, through the ingenious structural design of the extension and the receiving groove, can effectively prevent the clamping portion from axially moving relative to the fixing block, thereby assisting in strengthening the axial fixing strength of the bolt and nut assembly, preventing the turbine intermediate body from loosening due to loose fixation of the bolt and nut assembly, and further improving the stability and safety of the clamping process.

[0011] As an improvement, a first clamping block and a second clamping block are fixedly installed on the inner side of the clamping portion from top to bottom. The first clamping block is located on the outside of the second clamping block, and a first placement step is provided between the first clamping block and the second clamping block. The bottom of the first clamping block has a support portion extending in the direction of the first placement step, and a second placement step is formed between the support portion and the first clamping block. This improvement, through the design of multiple placement steps with different diameters, corresponds to a structure in which some turbine intermediate bodies are composed of multiple cones with increasing diameters from bottom to top. This provides support for the placement of multiple cones of the turbine intermediate body. At the same time, using multiple clamping blocks to clamp different cones can enhance the clamping force on the turbine intermediate body, improving the applicability and clamping efficiency of the clamping device.

[0012] As an improvement, clamping mechanisms are symmetrically located at the top and bottom of the baseplate. This improvement allows the turbine intermediate body to be clamped simultaneously using these clamping mechanisms, simplifying the clamping process and improving the efficiency of the turbine intermediate body removal jig, making the removal process more efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic structural diagram of the clamping mechanism in the present utility model;

[0015] Figure 3 This is the first stereoscopic diagram of the clamping mechanism in the present utility model;

[0016] Figure 4 This is the second three-dimensional diagram of the clamping mechanism in the present invention;

[0017] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0018] Figure 6 This is the third stereoscopic view of the clamping mechanism in the present invention.

[0019] Description of reference numerals:

[0020] 1. Base plate; 2. Clamping mechanism; 21. Pneumatic three-jaw chuck; 22. Clamping part; 221. Upper connecting part; 222. Upper step; 223. Positioning groove; 224. Upper rack; 23. Clamping area; 3. Annular seat; 30. Guide hole; 31. Upper extension part; 32. Lower extension part; 4. Push block; 41. Push arm; 411. Positioning pin; 5. Elastic connecting mechanism; 51. Guide column; 52. Spring; 6. Spacing adjustment locking mechanism; 61. Fixing block; 611. Lower connecting part; 612. Lower step; 613. Positioning hole; 614. Lower rack; 62. Bolt and nut assembly; 71. Upper accommodating groove; 72. Lower accommodating groove; 81. First clamping block; 811. Support part; 82. Second clamping block; 91. First placement step; 92. Second placement step. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] like Figure 1 and Figure 2 As shown, a turbine intermediate body removal jig includes a base plate 1 and a clamping mechanism 2 arranged on the base plate 1. The clamping mechanism 2 includes a pneumatic three-jaw chuck 21 installed on the base plate 1 and three clamping parts 22 arranged one by one on the clamping jaws of the pneumatic three-jaw chuck 21. A clamping area 23 is formed between the three clamping parts 22. An annular seat 3 is fixedly provided on the body of the pneumatic three-jaw chuck 21. A pushing block 4 is provided on the annular seat 3 for lifting. The pushing block 4 is located in the clamping area 23. An elastic connecting mechanism 5 for pushing the pushing block 4 outward is provided between the pushing block 4 and the annular seat 3.

[0023] This embodiment adopts the design of a push block 4 and an elastic connecting mechanism 5 to achieve a perfect fit between the turbine intermediate body and the bearing assembly end face, without the need for manual intervention, which significantly improves the operating efficiency and processing accuracy. When picking up the part, the pneumatic three-jaw chuck 21 clamps the turbine intermediate body through the three clamping parts 22 on the clamping jaws, and at the same time compresses the elastic parts in the elastic connecting mechanism 5. During assembly, the industrial robot moves the turbine intermediate body to the bearing position and sleeves it on the bearing. At this time, the clamping jaws of the pneumatic three-jaw chuck 21 are released, and the elastic parts in the elastic connecting mechanism 5 in a compressed state release the elastic force, pushing the push block 4 outward, applying axial thrust to the turbine intermediate body, so that it is completely fitted with the bearing assembly end face. This design avoids the problem of non-fitting of the assembly end face when the turbine intermediate body is assembled to the bearing in the traditional method, simplifies the operation process, improves assembly accuracy and efficiency, and significantly improves production efficiency and product quality.

[0024] like Figure 3 As shown, the push block 4 includes three evenly distributed push arms 41, which are spaced apart between two adjacent clamping portions 22 and have their inner ends integrally formed. The elastic connection mechanism 5 includes a guide post 51 fixed to the outer end of the push arm 41 and a spring 52 sleeved on the guide post 51. The annular seat 3 is provided with a guide hole 30 for the guide post 51 to be inserted. The guide post 51 is limited and raised within the guide hole 30, and the spring 52 is compressed and arranged between the push arm 41 and the annular seat 3. This improved solution uses three evenly distributed push arms 41 to form the push block 4, and uses the guide posts 51 and springs 52 to construct the elastic connection mechanism 5, thereby achieving stability and uniform thrust of the push block 4. The push arms 41 are spaced apart between adjacent clamping portions 22, and their inner ends are integrally formed, effectively preventing the turbine intermediate body from shifting during assembly and improving assembly accuracy and efficiency. The spring 52 is used to push the push block 4 outward. The combined structure of the guide posts 51 and springs 52 is simple, easy to implement, and low in cost.

[0025] like Figure 3 As shown, at least one locating pin 411 is fixedly mounted on the push arm 41 for insertion into a process hole in the turbine intermediate component. The locating pin 411 extends upward from the top of the push arm 41. This improved solution provides locating pin 411 on the push arm 41 for insertion into a process hole in the turbine intermediate component, ensuring that the turbine intermediate component is accurately positioned during removal and assembly. The provision of locating pin 411 effectively prevents the turbine intermediate component from rotating and misaligning on the bearing when the push block 4 ejects the turbine intermediate component, ensuring a perfect fit between the turbine intermediate component and the bearing, further improving the assembly accuracy and reliability of the product.

[0026] like Figure 4As shown, a spacing adjustment locking mechanism 6 for adjusting and locking the size of the clamping area 23 is provided between the pneumatic three-jaw chuck 21 and the clamping portion 22. The spacing adjustment locking mechanism 6 includes a fixing block 61 fixed to the clamping jaws of the pneumatic three-jaw chuck 21 and at least two bolt and nut assemblies 62 arranged between the fixing block 61 and the clamping portion 22. The clamping portion 22 is located at the top of the fixing block 61. One side of the bottom of the clamping portion 22 has an upper connecting portion 221 protruding downward. An upper step 222 is formed between the upper connecting portion 221 and the other side of the bottom of the clamping portion 22. One side of the top of the fixing block 61 has a lower protruding upward. The connecting part 611, a lower step 612 is formed between the lower connecting part 611 and the other side of the top of the fixed block 61, the upper connecting part 221 and the lower connecting part 611 are arranged side by side on the left and right, the lower step 612 is used to support the upper connecting part 221, and the upper step 222 is used to support the lower connecting part 611. The lower connecting part 611 is provided with at least two positioning holes 613 spaced apart in the radial direction of the annular seat 3, and the upper connecting part 221 is provided with a positioning groove 223 extending in the radial direction of the annular seat 3. The bolts of the bolt and nut assembly 62 are inserted into the positioning holes 613 and the positioning groove 223 at the same time and fixed. After applying this structure, the size of the clamping area 23 is adjusted by coinciding the positioning holes 613 on the lower connecting part 611 with the different positions of the positioning grooves 223 on the upper connecting part 221 in the radial direction. After the size of the clamping area 23 is determined, the fixing block 61 and the clamping part 22 are fixed by the bolt and nut assembly 62, thereby achieving the function of locking the size of the clamping area 23. The clamping part 22 is located at the top of the fixing block 61 and is tightly connected to the fixing block 61 through the support structure of the upper and lower steps 612 and the protrusion, thereby enhancing the connection strength and making the clamping part 22 more firmly set on the fixing block 61. This structural design not only ensures the stability of the spacing adjustment, but also provides precise positioning holes 613 and positioning grooves 223 for the bolt and nut assembly 62, which makes the spacing adjustment convenient and quick. After the size of the clamping area 23 is adjustable, the turbine intermediate body removal jig can firmly clamp turbine intermediate bodies of different sizes. The turbine intermediate body will not slip or fall off during the clamping process, thereby improving the stability and safety of the clamping process.

[0027] like Figure 4 and Figure 5As shown, an upper rack 224 extending in the radial direction of the annular seat 3 is fixed to the table surface of the upper step 222, and a lower rack 614 extending in the radial direction of the annular seat 3 is fixed to the top of the lower connecting portion 611. The upper rack 224 and the lower rack 614 are meshed. The size of the clamping area 23 is adjusted by aligning the positioning holes 613 on the lower connecting portion 611 with the positioning grooves 223 on the upper connecting portion 221 at different positions in the radial direction. The bolts of the bolt and nut assembly 62 are then simultaneously inserted into the positioning holes 613 and the positioning grooves 223 to fix the fixing block 61 and the clamping portion 22, thereby locking the size of the clamping area 23. If the bolt and nut assembly 62 is not firmly fixed, the turbine intermediate body clamped by the clamping portion 22 will loosen. This improved structure, through the engagement of the upper rack 224 and the lower rack 614, can effectively prevent the clamping portion 22 from radially moving relative to the fixing block 61 after the size adjustment of the clamping area 23 is completed, thereby helping to enhance the radial fixing strength of the bolt and nut assembly 62, ensuring the clamping strength of the clamping portion 22 on the turbine intermediate body, preventing the turbine intermediate body from loosening due to loose fixation of the bolt and nut assembly 62, and further improving the stability and safety of the clamping process.

[0028] like Figure 4 and Figure 5 As shown, the bottom of the upper connecting portion 221 has an upper extension portion 31 extending in the direction of the lower connecting portion 611, and the lower connecting portion 611 is provided with a lower accommodating groove 72 for accommodating the upper extension portion 31, and the top of the upper extension portion 31 is in contact with the upper side groove edge of the lower accommodating groove 72, and the top of the lower connecting portion 611 has a lower extension portion 32 extending in the direction of the upper connecting portion 221, and the upper connecting portion 221 is provided with an upper accommodating groove 71 for accommodating the lower extension portion 32, and the bottom of the lower extension portion 32 is in contact with the lower side groove edge of the upper accommodating groove 71, the lower side groove edge of the upper accommodating groove 71 coincides with the bottom of the lower extension portion 32, and the upper side groove edge of the lower accommodating groove 72 coincides with the top of the upper extension portion 31. When the diameter of the positioning hole 613 on the lower connecting portion 611 is inconsistent with the axial width of the positioning groove 223 on the upper connecting portion 221, axial clearance between the bolts of the bolt-nut assembly 62 and the positioning hole 613 or positioning groove 223 is likely to occur after the clamping portion 22 is assembled with the fixing block 61, affecting the axial fixing strength of the clamping portion 22 to the fixing block 61. This improved structure, through the ingenious structural design of the extension portion and the accommodating groove, can effectively prevent the clamping portion 22 from axially moving relative to the fixing block 61, thereby helping to strengthen the axial fixing strength of the bolt-nut assembly 62, preventing the turbine intermediate body from loosening due to the insecure fixation of the bolt-nut assembly 62, and further improving the stability and safety of the clamping process.

[0029] like Figure 6As shown, a first clamping block 81 and a second clamping block 82 are fixedly provided on the inner side of the clamping portion 22 from top to bottom. The first clamping block 81 is located outside the second clamping block 82, and a first placement step 91 is provided between the first clamping block 81 and the second clamping block 82. The bottom of the first clamping block 81 has a support portion 811 extending toward the first placement step 91, and a second placement step 92 is formed between the support portion 811 and the first clamping block 81. This improvement, through the design of multiple placement steps of different diameters, corresponds to a structure in which some turbine intermediate bodies are composed of multiple cones with increasing diameters from bottom to top, providing support for the placement of the multiple cones of the turbine intermediate body. At the same time, using multiple clamping blocks to clamp different cones can enhance the clamping force on the turbine intermediate body, thereby improving the applicability and clamping efficiency of the clamping device.

[0030] like Figure 1 As shown, the top and bottom of the base plate 1 are symmetrically provided with gripping mechanisms 2. This improvement enables the simultaneous gripping of the turbine intermediate using the gripping mechanisms 2 disposed on the top and bottom of the base plate 1, simplifying the gripping process and improving the efficiency of the turbine intermediate removal jig, making the removal process more efficient and convenient.

[0031] Although the disclosure is as described above, the scope of protection of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of protection of the utility model.

Claims

1. A jig for removing a turbine intermediate body, comprising a base plate (1) and a clamping mechanism (2) arranged on the base plate (1), characterized in that: The clamping mechanism (2) comprises a pneumatic three-jaw chuck (21) mounted on the base plate (1) and three clamping parts (22) arranged one-to-one on the clamping jaws of the pneumatic three-jaw chuck (21), a clamping area (23) being formed between the three clamping parts (22), an annular seat (3) being fixedly provided on the body of the pneumatic three-jaw chuck (21), a push block (4) being provided on the annular seat (3) for lifting, the push block (4) being located in the clamping area (23), and an elastic connection mechanism (5) for pushing the push block (4) outwards being provided between the push block (4) and the annular seat (3).

2. The turbine intermediate body removal jig according to claim 1, characterized in that: The pushing block (4) includes three evenly distributed pushing arms (41), the pushing arms (41) are spaced between two adjacent clamping portions (22) and the inner ends of the pushing arms (41) are integrally formed, the elastic connection mechanism (5) includes a guide column (51) fixed to the outer end of the pushing arm (41) and a spring (52) sleeved on the guide column (51), the annular seat (3) is provided with a guide hole (30) for inserting the guide column (51), the guide column (51) is limited and lifted in the guide hole (30), and the spring (52) is compressed and arranged between the pushing arm (41) and the annular seat (3).

3. The turbine intermediate body removal jig according to claim 2, characterized in that: At least one positioning pin (411) for inserting into a process hole on a turbine intermediate component is fixedly provided on the pushing arm (41), and the positioning pin (411) is extended upward from the top of the pushing arm (41).

4. The turbine intermediate body removal jig according to claim 1, characterized in that: A spacing adjustment locking mechanism (6) for adjusting and locking the size of the clamping area (23) is provided between the pneumatic three-jaw chuck (21) and the clamping portion (22). The spacing adjustment locking mechanism (6) comprises a fixing block (61) fixed to the clamping jaws of the pneumatic three-jaw chuck (21) and at least two bolt and nut assemblies (62) provided between the fixing block (61) and the clamping portion (22). The clamping portion (22) is located at the top of the fixing block (61). One side of the bottom of the clamping portion (22) has an upper connecting portion (221) protruding downward. An upper step (222) is formed between the upper connecting portion (221) and the other side of the bottom of the clamping portion (22). One side of the top of the fixing block (61) has a lower connecting portion ( 611), a lower step (612) is formed between the lower connecting portion (611) and the other side of the top of the fixing block (61), the upper connecting portion (221) and the lower connecting portion (611) are arranged side by side, the lower step (612) is used to support the upper connecting portion (221), and the upper step (222) is used to support the lower connecting portion (611), the lower connecting portion (611) is provided with at least two positioning holes (613) spaced apart along the radial direction of the annular seat (3), the upper connecting portion (221) is provided with a positioning groove (223) extending along the radial direction of the annular seat (3), and the bolts of the bolt and nut assembly (62) are simultaneously inserted into the positioning holes (613) and the positioning groove (223) and fixed.

5. The turbine intermediate body removal jig according to claim 4, characterized in that: An upper rack (224) extending in the radial direction of the annular seat (3) is fixed on the table surface of the upper step (222), and a lower rack (614) extending in the radial direction of the annular seat (3) is fixed on the top of the lower connecting portion (611), wherein the upper rack (224) and the lower rack (614) are meshed.

6. The turbine intermediate body removal jig according to claim 4, characterized in that: The bottom of the upper connecting portion (221) has an upper extension portion (31) extending in the direction of the lower connecting portion (611), and the lower connecting portion (611) is provided with a lower accommodating groove (72) for accommodating the upper extension portion (31), and the top of the upper extension portion (31) is in contact with the upper groove edge of the lower accommodating groove (72), and the top of the lower connecting portion (611) has a lower extension portion (32) extending in the direction of the upper connecting portion (221), and the upper accommodating groove (71) is provided with the lower extension portion (32), and the bottom of the lower extension portion (32) is in contact with the lower groove edge of the upper accommodating groove (71), the lower groove edge of the upper accommodating groove (71) coincides with the bottom of the lower extension portion (32), and the upper groove edge of the lower accommodating groove (72) coincides with the top of the upper extension portion (31).

7. The turbine intermediate body removal jig according to claim 1, characterized in that: A first clamping block (81) and a second clamping block (82) are fixedly provided on the inner side of the clamping portion (22) from top to bottom, the first clamping block (81) is located on the outer side of the second clamping block (82), and a first placement step (91) is provided between the first clamping block (81) and the second clamping block (82), the bottom of the first clamping block (81) has a supporting portion (811) extending in the direction of the first placement step (91), and a second placement step (92) is formed between the supporting portion (811) and the first clamping block (81).

8. The turbine intermediate body removal jig according to claim 1, characterized in that: The clamping mechanisms (2) are symmetrically arranged on the top and bottom of the substrate (1).

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