Clamp for electric spark punching of turbine blade

Abstract

The utility model relates to the technical field of turbine blade machining, in particular to a clamp for electric spark punching of a turbine blade. The device comprises a bottom plate, an upper edge plate clamping assembly and a lower edge plate clamping assembly are arranged at the left position and the right position of the bottom plate correspondingly, the upper edge plate clamping assembly comprises two first edge plate fixing bases arranged side by side, the two first edge plate fixing bases are fixed to the bottom plate, and the upper end faces of the first edge plate fixing bases are connected with first pressing plates through first pressing bolts; a first pressing bolt penetrates through the first pressing plate and then is connected to the upper end face of the first margin plate fixing seat through threads; the lower edge plate clamping assembly comprises a second edge plate fixing seat, the second edge plate fixing seat is fixed to the bottom plate, and the upper end face of the second edge plate fixing seat is connected with a second pressing plate through a second pressing bolt. By means of the clamping device, clamping of electric spark machining of the turbine blade can be achieved, it is guaranteed that clamping of the turbine blade is stable and reliable, and therefore punching errors are reduced, production efficiency is improved, and machining quality of the turbine blade is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of turbine blade processing, in particular to a clamp for electric spark drilling of turbine blades. Background Art

[0002] At present, a large number of film holes are generally set at the leading edge and blade body of turbine blades. The diameter of the film holes is generally 0.2-0.8mm, and the spatial angles of the film holes are complex.

[0003] When processing the air film hole, the turbine blade needs to be clamped. The turbine blade is a double-jointed structure with a complex curved surface. Conventional fixtures cannot achieve stable and reliable clamping of the blade, which affects the processing accuracy of the air film hole. Utility Model Content

[0004] In response to the shortcomings in the above-mentioned existing production technology, the present application provides a fixture for electric spark drilling of turbine blades, which can realize the clamping of turbine blades during electric spark drilling processing and ensure that the clamping of turbine blades is stable and reliable, thereby reducing drilling errors, improving production efficiency and enhancing the processing quality of turbine blades.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A fixture for electric spark drilling of turbine blades, comprising a base plate, an upper edge plate clamping assembly and a lower edge plate clamping assembly are respectively arranged at left and right positions of the base plate, the upper edge plate clamping assembly comprises two first edge plate fixing seats arranged side by side, the two first edge plate fixing seats are fixed to the base plate, the upper end surface of the first edge plate fixing seat is connected to the first pressing plate by a first clamping bolt, the first clamping bolt passes through the first pressing plate and is connected to the upper end surface of the first edge plate fixing seat by a thread; the lower edge plate clamping assembly comprises a second edge plate fixing seat, the second edge plate fixing seat is fixed to the base plate, the upper end surface of the second edge plate fixing seat is connected to the second pressing plate by a second clamping bolt, the second clamping bolt passes through the second pressing plate and is connected to the upper end surface of the second edge plate fixing seat by a thread;

[0007] The locking device is configured to lock the locking cam of the locking cam, wherein the locking cam is secured to the locking cam of the locking cam by a spring, and the locking cam is secured to the locking cam of the locking cam by a spring.

[0008] The first auxiliary mounting hole and the second auxiliary mounting hole are respectively arranged at the upper and lower parts of the second positioning block fixing seat, the first auxiliary mounting hole and the second auxiliary mounting hole are respectively located above and below the third positioning block fixing hole, a first auxiliary positioning block is arranged in the first auxiliary mounting hole, a front end of the first auxiliary positioning block extends out of the front end face of the second positioning block fixing seat, a rear end of the first auxiliary positioning block is connected to the first auxiliary adjusting screw, the first auxiliary adjusting screw is connected to the first auxiliary mounting hole through a thread, a second auxiliary positioning block is arranged in the second auxiliary mounting hole, a front end of the second auxiliary positioning block extends out of the front end face of the second positioning block fixing seat, a rear end of the second auxiliary positioning block is connected to the second auxiliary adjusting screw, and the second auxiliary adjusting screw is connected to the second auxiliary mounting hole through a thread;

[0009] The first positioning column mounting block and the second positioning column mounting block are arranged on the right side of the base plate, the first positioning column mounting block is located on one side of the second edge plate fixing seat, the first positioning column is vertically arranged on the first positioning column mounting block, the second positioning column mounting block is located on one side of the second positioning block fixing seat, and the second positioning column is vertically arranged on the second positioning column mounting block.

[0010] Furthermore, the first pressing plate is an L-shaped structure, one end of the first pressing plate can be pressed and contacted with the upper edge plate, and the other end of the first pressing plate contacts the upper end surface of the first edge plate fixing seat.

[0011] Furthermore, a long waist-shaped first clamping bolt adjustment hole is provided on the first pressure plate at the position connected to the first clamping bolt, and the first clamping bolt can be adjusted in position along the first clamping bolt adjustment hole.

[0012] Furthermore, a first avoidance groove is arranged on the side surface of the first edge plate fixing seat.

[0013] Furthermore, the second pressing plate is an L-shaped structure, one end of the second pressing plate can be pressed and contacted with the lower edge plate, and the other end of the second pressing plate contacts the upper end surface of the second edge plate fixing seat.

[0014] Furthermore, a long waist-shaped second clamping bolt adjustment hole is provided on the second pressure plate at the position connected to the second clamping bolt, and the second clamping bolt can be adjusted along the second clamping bolt adjustment hole.

[0015] Furthermore, a second avoidance groove is arranged on the side surface of the second edge plate fixing seat.

[0016] Furthermore, the side surface of the second edge plate fixing seat fixes the edge plate side positioning block.

[0017] Furthermore, a first T-shaped joint is arranged at the front end of the first auxiliary adjusting screw rod, and a first T-shaped groove is arranged at the rear end of the first auxiliary positioning block. The first T-shaped joint is fitted and connected in the first T-shaped groove and can rotate relatively.

[0018] Furthermore, a second T-shaped joint is arranged at the front end of the second auxiliary adjusting screw rod, and a second T-shaped groove is arranged at the rear end of the second auxiliary positioning block. The second T-shaped joint is fitted and connected in the second T-shaped groove and can rotate relatively.

[0019] The beneficial effects of the utility model are as follows:

[0020] The utility model has a compact and reasonable structure and is easy to operate. It can realize the clamping of turbine blades during electric spark machining and ensure that the turbine blades are clamped stably and reliably, thereby reducing drilling errors, improving production efficiency and enhancing the machining quality of turbine blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the utility model.

[0022] Figure 2 It is a three-dimensional diagram of the upper edge plate positioning assembly of the utility model.

[0023] Figure 3 It is a three-dimensional diagram of the lower edge plate positioning assembly of the present utility model.

[0024] Figure 4 This is a structural diagram of the first auxiliary positioning component of the utility model.

[0025] Figure 5 This is a structural diagram of the second auxiliary positioning component of the utility model.

[0026] Figure 6 This is a schematic diagram of the turbine blade clamping of the utility model.

[0027] Wherein: 1, bottom plate; 2, first edge plate fixing seat; 3, first pressure plate; 4, first clamping bolt adjustment hole; 5, second edge plate fixing seat; 6, second pressure plate; 7, second clamping bolt adjustment hole; 8, first avoidance groove; 9, second avoidance groove; 10, edge plate side positioning block; 11, first positioning block fixing seat; 12, second positioning block fixing seat; 13, first edge plate positioning block; 14, second edge plate positioning block; 15, third edge plate positioning block; 16, first auxiliary positioning block; Position block; 17, second auxiliary positioning block; 18, first adjusting screw; 19, second adjusting screw; 20, third adjusting screw; 21, first auxiliary adjusting screw; 22, second auxiliary adjusting screw; 23, first T-shaped joint; 24, first T-shaped groove; 25, second T-shaped joint; 26, second T-shaped groove; 27, turbine blade; 28, first positioning column mounting block; 29, second positioning column mounting block; 30, first positioning column; 31, second positioning column. DETAILED DESCRIPTION

[0028] The specific implementation of the utility model is described below in conjunction with the accompanying drawings.

[0029] like Figure 1 As shown, a fixture for electric spark drilling of turbine blades includes a base plate 1, and an upper edge plate clamping assembly and a lower edge plate clamping assembly are respectively arranged at the left and right positions of the base plate 1. The upper edge plate clamping assembly and the lower edge plate clamping assembly can respectively clamp the upper and lower edge plates of the turbine blades.

[0030] like Figure 1 As shown, the upper edge plate clamping assembly includes two first edge plate fixing seats 2 arranged side by side, the two first edge plate fixing seats 2 are fixed on the base plate 1, the upper end surface of the first edge plate fixing seat 2 can place the upper edge plate of the turbine blade, the upper end surface of the first edge plate fixing seat 2 is connected to the first pressure plate 3 through the first clamping bolt, the first clamping bolt passes through the first pressure plate 3 and is connected to the upper end surface of the first edge plate fixing seat 2 through a thread, and the degree of clamping of the first pressure plate 3 on the upper edge plate is adjusted by the first clamping bolt.

[0031] like Figure 1 As shown, the first pressing plate 3 is an L-shaped structure, one end of the first pressing plate 3 can press and contact the upper edge plate, and the other end of the first pressing plate 3 contacts the upper end surface of the first edge plate fixing seat 2, so that the first pressing plate 3 is set at the same height on the left and right.

[0032] like Figure 1 As shown, a long waist-shaped first clamping bolt adjustment hole 4 is provided on the first clamping plate 3 at the position connected to the first clamping bolt, and the first clamping bolt can be adjusted along the first clamping bolt adjustment hole 4, thereby adjusting the contact position between the first clamping plate 3 and the upper edge plate.

[0033] like Figure 1As shown, a first avoidance groove 8 is provided on the side of the first edge plate fixing seat 2 , and the first avoidance groove 8 can avoid the upper edge plate structure to avoid interference with the upper edge plate structure placed on the upper end surface of the first edge plate fixing seat 2 .

[0034] like Figure 1 As shown, the lower edge plate clamping assembly includes a second edge plate fixing seat 5, the second edge plate fixing seat 5 is fixed on the base plate 1, the upper end surface of the second edge plate fixing seat 5 can place the lower edge plate of the turbine blade, the upper end surface of the second edge plate fixing seat 5 is connected to the second pressure plate 6 through a second clamping bolt, the second clamping bolt passes through the second pressure plate 6 and is connected to the upper end surface of the second edge plate fixing seat 5 through a thread, and the degree of clamping of the second pressure plate 6 on the lower edge plate is adjusted by the second clamping bolt.

[0035] like Figure 1 As shown, the second pressing plate 6 is an L-shaped structure, one end of the second pressing plate 6 can press and contact the lower edge plate, and the other end of the second pressing plate 6 contacts the upper end surface of the second edge plate fixing seat 5, so that the second pressing plate 6 is set at the same height on the left and right.

[0036] like Figure 1 As shown, a long waist-shaped second clamping bolt adjustment hole 7 is provided on the second clamping plate 6 at the position connected to the second clamping bolt, and the second clamping bolt can be adjusted along the second clamping bolt adjustment hole 7 to adjust the contact position between the second clamping plate 6 and the lower edge plate.

[0037] like Figure 1 As shown, a second avoidance groove 9 is provided on the side of the second edge plate fixing seat 5 , and the second avoidance groove 9 can avoid the lower edge plate structure to avoid interference with the lower edge plate structure placed on the upper end surface of the second edge plate fixing seat 5 .

[0038] like Figure 1 As shown, the side of the second edge plate fixing seat 5 fixes the edge plate side positioning block 10, and the side of the edge plate side positioning block 10 can contact the side of the lower edge plate of the turbine blade to achieve auxiliary positioning of the lower edge plate of the turbine blade.

[0039] like Figure 1 As shown, an upper edge plate positioning assembly and a lower edge plate positioning assembly are respectively arranged at the left and right positions on the base plate 1. The upper edge plate positioning assembly can position the side end surface of the upper edge plate of the turbine blade that is contacted and clamped, and the lower edge plate positioning assembly can position the side end surface of the lower edge plate of the turbine blade that is contacted and clamped.

[0040] like Figure 1 and Figure 2As shown, the upper edge plate positioning assembly includes a first positioning block fixing seat 11, and the first positioning block fixing seat 11 is respectively provided with a first positioning block mounting hole and a second positioning block mounting hole. A first edge plate positioning block 13 is arranged in the first positioning block mounting hole, and the front end of the first edge plate positioning block 13 extends out of the front end face of the first positioning block fixing seat 11 and can contact the upper edge plate side face of the turbine blade. A first adjusting screw 18 is arranged at the rear end of the first edge plate positioning block 13, and the first adjusting screw 18 is connected to the first positioning block mounting hole by threading. The first adjusting screw 18 can press the first edge plate positioning block 13 tightly to contact the upper edge plate side face of the turbine blade. A second edge plate positioning block 14 is arranged in the second positioning block mounting hole, and the front end of the second edge plate positioning block 14 extends out of the front end face of the first positioning block fixing seat 11 and can contact the upper edge plate side face of the turbine blade. A second adjusting screw 19 is arranged at the rear end of the second edge plate positioning block 14, and the second adjusting screw 19 is connected to the second positioning block mounting hole by threading. The second adjusting screw 19 can press the second edge plate positioning block 14 tightly to contact the upper edge plate side face of the turbine blade.

[0041] like Figure 1 and Figure 3 As shown, the lower edge plate positioning assembly includes a second positioning block fixing seat 12, a third positioning block mounting hole is arranged in the middle of the second positioning block fixing seat 12, a third edge plate positioning block 15 is arranged in the third positioning block mounting hole, the front end of the third edge plate positioning block 15 extends out of the front end surface of the second positioning block fixing seat 12 and can contact the side surface of the lower edge plate of the turbine blade, and a third adjusting screw 20 is arranged at the rear end of the third edge plate positioning block 15, and the third adjusting screw 20 is connected to the third positioning block mounting hole by threading. The third adjusting screw 20 can press the third edge plate positioning block 15 tightly to contact the side surface of the lower edge plate of the turbine blade.

[0042] like Figure 1 and Figure 3 As shown, the first auxiliary mounting hole and the second auxiliary mounting hole are respectively arranged at the upper and lower parts of the second positioning block fixing seat 12, and the first auxiliary mounting hole and the second auxiliary mounting hole are respectively located above and below the third positioning block mounting hole. A first auxiliary positioning block 16 is arranged in the first auxiliary mounting hole, and the front end of the first auxiliary positioning block 16 extends out of the front end face of the second positioning block fixing seat 12 and can contact the side of the lower edge plate of the turbine blade, and the rear end of the first auxiliary positioning block 16 is connected to the first auxiliary adjustment screw 21, and the first auxiliary adjustment screw 21 is connected to the first auxiliary mounting hole by threading. A second auxiliary positioning block 17 is arranged in the second auxiliary mounting hole, and the front end of the second auxiliary positioning block 17 extends out of the front end face of the second positioning block fixing seat 12 and can contact the side of the lower edge plate of the turbine blade, and the rear end of the second auxiliary positioning block 17 is connected to the second auxiliary adjustment screw 22, and the second auxiliary adjustment screw 22 is connected to the second auxiliary mounting hole by threading.

[0043] like Figure 4As shown, a first T-shaped joint 23 is provided at the front end of the first auxiliary adjusting screw 21, and a first T-shaped groove 24 is provided at the rear end of the first auxiliary positioning block 16. The first T-shaped joint 23 is fitted and connected in the first T-shaped groove 24 and can rotate relatively.

[0044] like Figure 5 As shown, a second T-shaped joint 25 is provided at the front end of the second auxiliary adjusting screw 22, and a second T-shaped groove 26 is provided at the rear end of the second auxiliary positioning block 17. The second T-shaped joint 25 is fitted and connected in the second T-shaped groove 26 and can rotate relatively.

[0045] like Figure 1 As shown, a first positioning column mounting block 28 and a second positioning column mounting block 29 are arranged on the right side of the bottom plate 1, the first positioning column mounting block 28 is located on one side of the second edge plate fixing seat 5, a first positioning column 30 is vertically arranged on the first positioning column mounting block 28, and the first positioning column 30 can be positioned to contact the bottom of the lower edge plate of the turbine blade. The second positioning column mounting block 29 is located on one side of the second positioning block fixing seat 12, and a second positioning column 31 is vertically arranged on the second positioning column mounting block 29, and the second positioning column 31 can be positioned to contact the bottom of the lower edge plate of the turbine blade.

[0046] like Figure 6 As shown, when performing electric spark drilling of turbine blades, the turbine blade 27 is placed horizontally, and the upper and lower edge plates of the turbine blade 27 are placed on the first edge plate fixing seat 2 and the second edge plate fixing seat 5 respectively, and the upper and lower edge plate positioning components, the first positioning column 30, the second positioning column 31, and the edge plate side positioning block 10 are adjusted to achieve the positioning of the turbine blade, and finally the upper and lower edge plates are respectively pressed up and down by the upper and lower edge plate clamping components. The utility model can realize the clamping of the turbine blade electric spark drilling processing, ensure the stable and reliable clamping of the turbine blade, thereby reducing the drilling error, improving the production efficiency and improving the processing quality of the turbine blade.

[0047] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. A fixture for electric spark drilling of turbine blades, comprising a base plate (1), characterized in that: An upper edge plate clamping assembly and a lower edge plate clamping assembly are respectively arranged at left and right positions on the bottom plate (1), the upper edge plate clamping assembly comprises two first edge plate fixing seats (2) arranged side by side, the two first edge plate fixing seats (2) are fixed on the bottom plate (1), the upper end surface of the first edge plate fixing seat (2) is connected to the first pressure plate (3) by a first clamping bolt, the first clamping bolt passes through the first pressure plate (3) and is connected to the upper end surface of the first edge plate fixing seat (2) by a thread; the lower edge plate clamping assembly comprises a second edge plate fixing seat (5), the second edge plate fixing seat (5) is fixed on the bottom plate (1), the upper end surface of the second edge plate fixing seat (5) is connected to the second pressure plate (6) by a second clamping bolt, the second clamping bolt passes through the second pressure plate (6) and is connected to the upper end surface of the second edge plate fixing seat (5) by a thread; An upper edge plate positioning assembly and a lower edge plate positioning assembly are respectively arranged at left and right positions on the bottom plate (1), the upper edge plate positioning assembly comprises a first positioning block fixing seat (11), a first positioning block mounting hole and a second positioning block mounting hole are respectively arranged at the upper and lower parts of the first positioning block fixing seat (11), a first edge plate positioning block (13) is arranged in the first positioning block mounting hole, a front end of the first edge plate positioning block (13) extends out of the front end surface of the first positioning block fixing seat (11), a first adjusting screw (18) is arranged at the rear end of the first edge plate positioning block (13), the first adjusting screw (18) is connected to the first positioning block mounting hole through a thread, a second edge plate positioning block (14) is arranged in the second positioning block mounting hole, and the second edge plate positioning block The front end of the second edge plate positioning block (14) extends out of the front end surface of the first positioning block fixing seat (11), and the rear end of the second edge plate positioning block (14) is provided with a second adjusting screw (19), and the second adjusting screw (19) is connected to the second positioning block mounting hole by a thread; the lower edge plate positioning assembly comprises a second positioning block fixing seat (12), a third positioning block mounting hole is provided in the middle of the second positioning block fixing seat (12), a third edge plate positioning block (15) is provided in the third positioning block mounting hole, the front end of the third edge plate positioning block (15) extends out of the front end surface of the second positioning block fixing seat (12), and the rear end of the third edge plate positioning block (15) is provided with a third adjusting screw (20), and the third adjusting screw (20) is connected to the third positioning block mounting hole by a thread; The second positioning block fixing seat (12) is provided with a first auxiliary mounting hole and a second auxiliary mounting hole at the upper and lower parts respectively, the first auxiliary mounting hole and the second auxiliary mounting hole are respectively located above and below the third positioning block fixing hole, a first auxiliary positioning block (16) is provided in the first auxiliary mounting hole, the front end of the first auxiliary positioning block (16) extends out of the front end surface of the second positioning block fixing seat (12), the rear end of the first auxiliary positioning block (16) is connected to the first auxiliary adjustment screw (21), the first auxiliary adjustment screw (21) is connected to the first auxiliary mounting hole by threading, a second auxiliary positioning block (17) is provided in the second auxiliary mounting hole, the front end of the second auxiliary positioning block (17) extends out of the front end surface of the second positioning block fixing seat (12), the rear end of the second auxiliary positioning block (17) is connected to the second auxiliary adjustment screw (22), and the second auxiliary adjustment screw (22) is connected to the second auxiliary mounting hole by threading; A first positioning column mounting block (28) and a second positioning column mounting block (29) are arranged on the right side of the bottom plate (1); the first positioning column mounting block (28) is located on one side of the second edge plate fixing seat (5); a first positioning column (30) is vertically arranged on the first positioning column mounting block (28); the second positioning column mounting block (29) is located on one side of the second positioning block fixing seat (12); a second positioning column (31) is vertically arranged on the second positioning column mounting block (29).

2. A fixture for electric spark drilling of turbine blades as claimed in claim 1, characterized in that: The first pressing plate (3) is an L-shaped structure, one end of the first pressing plate (3) is capable of pressing and contacting the upper edge plate, and the other end of the first pressing plate (3) contacts the upper end surface of the first edge plate fixing seat (2).

3. A fixture for electric spark drilling of turbine blades as claimed in claim 2, characterized in that: A long waist-shaped first clamping bolt adjustment hole (4) is provided on the first clamping plate (3) at a position connected to the first clamping bolt, and the position of the first clamping bolt can be adjusted along the first clamping bolt adjustment hole (4).

4. A fixture for electric spark drilling of turbine blades as claimed in claim 1, characterized in that: A first avoidance groove (8) is provided on the side surface of the first edge plate fixing seat (2).

5. A fixture for electric spark drilling of turbine blades as claimed in claim 1, characterized in that: The second pressing plate (6) is an L-shaped structure, one end of the second pressing plate (6) is capable of pressing and contacting the lower edge plate, and the other end of the second pressing plate (6) contacts the upper end surface of the second edge plate fixing seat (5).

6. A fixture for electric spark drilling of turbine blades as claimed in claim 5, characterized in that: A long waist-shaped second clamping bolt adjustment hole (7) is provided on the second clamping plate (6) at a position connected to the second clamping bolt, and the position of the second clamping bolt can be adjusted along the second clamping bolt adjustment hole (7).

7. A fixture for electric spark drilling of turbine blades as claimed in claim 1, characterized in that: A second avoidance groove (9) is provided on the side surface of the second edge plate fixing seat (5).

8. A fixture for electric spark drilling of turbine blades as claimed in claim 1, characterized in that: The second edge plate fixing seat (5) is laterally fixed with an edge plate side positioning block (10).

9. A fixture for electric spark drilling of turbine blades as claimed in claim 1, characterized in that: A first T-shaped joint (23) is provided at the front end of the first auxiliary adjustment screw rod (21), and a first T-shaped groove (24) is provided at the rear end of the first auxiliary positioning block (16). The first T-shaped joint (23) is fitted and connected in the first T-shaped groove (24) and can rotate relatively thereto.

10. A fixture for electric spark drilling of turbine blades as claimed in claim 1, characterized in that: A second T-shaped joint (25) is provided at the front end of the second auxiliary adjustment screw rod (22), and a second T-shaped groove (26) is provided at the rear end of the second auxiliary positioning block (17). The second T-shaped joint (25) is fitted and connected in the second T-shaped groove (26) and can rotate relatively thereto.

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