Die for blade punching

Abstract

The utility model relates to a die for blade punching, which belongs to the technical field of blade punching and comprises a base and a top plate arranged at the top of the base, two die guide rails are fixedly connected to one side, close to the top plate, of the base, and a punching die structure capable of punching a blade is arranged between the two die guide rails. The punching die structure comprises a connecting plate fixedly connected to the side, close to the base, of the top plate. According to the die for blade punching, by arranging the upper discharging plate and the floating die core, a blade can be placed between the upper discharging plate and the floating die core, meanwhile, the upper discharging plate and the floating die core can be tightly attached to the blade, and by arranging the punch and the limiting block, when downward force is applied to the top plate, the blade can be punched, and the blade can be punched. When the blade is punched, the top plate can drive the upper discharging plate and the connecting plate to move downwards at the same time, firstly, the upper discharging plate presses and fixes the blade, then the connecting plate extrudes the rubber block, the punch penetrates out of the bottom of the upper discharging plate, and then the blade is punched.

Description

Technical Field

[0001] This utility model relates to the field of blade punching technology, specifically a mold for blade punching. Background Technology

[0002] Blade punching is a machining process primarily used to punch holes of specific shapes into blade materials. Punching holes in blades serves multiple functions. For example, in aero-engine blades, these holes allow for the flow of cooling air. When the engine is operating, the high-temperature exhaust gases generate a strong thermal load on the blades. Introducing cooling air through the punched holes effectively reduces the blade temperature, ensuring the blades can operate normally in high-temperature environments. Punched blades can also be used for mounting or connecting to other components. For instance, on the blades of some large wind turbines, punching holes can be used to install sensors, lightning protection devices, or as bolt holes for connecting to components such as the hub.

[0003] Currently, the surface of bent aluminum blades is generally processed by drilling machines. This method requires the use of drill bushing molds, marking lines according to the positioning center hole, and manual processing in multiple stages. This results in low hole position accuracy, large errors, and low efficiency, which cannot meet production needs. Therefore, a blade punching mold is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a die for punching holes in blades, which has the advantage of high punching efficiency. It solves the problem that the current method of processing the surface of bent aluminum blades using a drilling machine requires the use of a drill bushing die, marking lines according to the positioning center hole, and manual processing in multiple stages. This method suffers from low hole position accuracy, large errors, and low efficiency, and cannot meet production needs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a die for punching blades, comprising a base and a top plate disposed on the top of the base, wherein two die guide rails are fixedly connected to the side of the base near the top plate, and a punching die structure capable of punching blades is disposed between the two die guide rails.

[0006] The punching die structure includes a connecting plate fixedly connected to the top plate near the base. An upper unloading plate is provided at the bottom of the connecting plate. A floating die core is slidably connected between the two die guide rails. A limit block is fixedly connected to the side of the upper unloading plate near the connecting plate. A punch that passes through the upper unloading plate and the limit block is fixedly connected to the bottom of the connecting plate.

[0007] Furthermore, the floating mold core has punch holes inside that are compatible with the punch, and a rubber block is fixedly connected between the upper unloading plate and the connecting plate.

[0008] Furthermore, a fixed seat is fixedly connected to the side of the base near the floating mold core, and a lower unloading plate is provided on the top of the fixed seat. A limit block and a punch are distributed between the fixed seat and the lower unloading plate.

[0009] Furthermore, there are eighteen limiting blocks and eighteen punches, which are evenly distributed on the side opposite to the upper and lower unloading plates.

[0010] Furthermore, a positioning plate is fixedly connected to the top of the two mold guide rails, and the upper unloading plate and the lower unloading plate are both located on the front of the two mold guide rails, with the positioning plate in contact with the upper unloading plate.

[0011] Furthermore, a return spring is fixedly connected to the opposite side of the base and the floating mold core. The return spring is located between the two mold guide rails, and the number of return springs is three.

[0012] Furthermore, the top of the base is fixedly connected to a positioning guide post that penetrates the top plate. The positioning guide post is slidably connected to the top plate. There are two positioning guide posts, which are symmetrically distributed on the top of the base.

[0013] Furthermore, a support plate is fixedly connected to one side of the base, and an abutment plate is fixedly connected to the side of the support plate near the floating mold core.

[0014] Compared with the prior art, the present invention provides a die for punching holes in blades, which has the following advantages:

[0015] 1. This blade punching die, by setting an upper stripper plate and a floating die core, can place the blade between the upper stripper plate and the floating die core. At the same time, the upper stripper plate and the floating die core can fit tightly with the blade. By setting a punch and a limiting block, when a downward force is applied to the top plate, the top plate will simultaneously drive the upper stripper plate and the connecting plate to move downward. First, the upper stripper plate presses and fixes the blade, and then the connecting plate squeezes the rubber block, causing the punch to pass through the bottom of the upper stripper plate and punch the blade. At the same time, due to the downward movement of the top plate, the punch on the lower stripper plate passes through and punches the bottom of the blade. This ensures that the punching size on the upper and lower surfaces of the blade is the same, thereby improving the punching efficiency.

[0016] 2. This blade punching die, by setting two die guide rails, can position the floating die core, enabling stable lifting and lowering movement. Furthermore, by setting a return spring, after punching is completed, the return spring will reset, thus lifting the floating die core upwards, making it convenient for workers to remove the blade. This solves the problem that currently, the surface of bent aluminum blades is generally processed using a drilling machine. This method requires the use of a drill bushing die, marking according to the positioning center hole, and multiple manual processing steps, resulting in low hole position accuracy, large errors, and low efficiency, failing to meet production needs. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the punch of this utility model;

[0019] Figure 3 This is a front view of the structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the reset spring of this utility model.

[0021] In the diagram: 1. Base, 2. Top plate, 3. Mold guide rail, 4. Connecting plate, 5. Upper unloading plate, 6. Floating mold core, 7. Limiting block, 8. Punch, 9. Rubber block, 10. Fixed seat, 11. Lower unloading plate, 12. Positioning plate, 13. Return spring, 14. Positioning guide post, 15. Support plate, 16. Abutment plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1:

[0024] Please see Figures 1 to 4 In this embodiment, a blade punching mold includes a base 1 and a top plate 2 disposed on the top of the base 1. Two mold guide rails 3 are fixedly connected to the side of the base 1 near the top plate 2. A punching mold structure capable of punching blades is disposed between the two mold guide rails 3. The punching mold structure includes a connecting plate 4 fixedly connected to the side of the top plate 2 near the base 1. An upper unloading plate 5 is disposed at the bottom of the connecting plate 4. A floating mold core 6 is slidably connected between the two mold guide rails 3. A limit block 7 is fixedly connected to the side of the upper unloading plate 5 near the connecting plate 4. A punch 8 is fixedly connected to the bottom of the connecting plate 4, which passes through the upper unloading plate 5 and the limit block 7 respectively.

[0025] The floating mold core 6 has a punch hole inside that matches the punch 8. A rubber block 9 is fixedly connected between the upper stripper plate 5 and the connecting plate 4. A fixed seat 10 is fixedly connected to the side of the base 1 near the floating mold core 6. A lower stripper plate 11 is provided on the top of the fixed seat 10. A limit block 7 and a punch 8 are distributed between the fixed seat 10 and the lower stripper plate 11. The lower stripper plate 11, the upper stripper plate 5 and the front of the floating mold core 6 are all on the same horizontal plane.

[0026] It should be noted that there are eighteen limit blocks 7 and eighteen punches 8. The eighteen limit blocks 7 and eighteen punches 8 are evenly distributed on the side opposite to the upper unloading plate 5 and the lower unloading plate 11. By setting eighteen punches 8, it is convenient to punch nine holes on the upper and lower surfaces of the blade at the same time, so that the workers do not need to process repeatedly, which improves the punching efficiency and reduces the punching error.

[0027] In this embodiment, a positioning plate 12 is fixedly connected to the top of the two mold guide rails 3. The upper unloading plate 5 and the lower unloading plate 11 are both located on the front of the two mold guide rails 3. The positioning plate 12 is in contact with the upper unloading plate 5. A return spring 13 is fixedly connected to the opposite side of the base 1 and the floating mold core 6. The return spring 13 is located between the two mold guide rails 3, and there are three return springs 13.

[0028] By setting two mold guide rails 3, the floating mold core 6 can be positioned, enabling stable lifting and lowering movement. Furthermore, by setting a reset spring 13, after punching is completed, the reset spring 13 will reset, thereby lifting the floating mold core 6 upward, making it convenient for workers to remove the blade.

[0029] It should be noted that a support plate 15 is fixedly connected to one side of the base 1, and an abutment plate 16 is fixedly connected to the side of the support plate 15 near the floating mold core 6. By setting the support plate 15 and the abutment plate 16, the abutment plate 16 can abut and position one side of the blade. Then, the blade is simultaneously positioned by the mold guide rail 3. When the blade is placed between the floating mold core 6 and the upper unloading plate 5, the mold guide rail 3 and the abutment plate 16 abut the blade, achieving the effect of dual positioning of the blade and avoiding different positions when the blade is stamped each time.

[0030] Example 2:

[0031] Please see Figure 1 Based on Embodiment 1, it includes a positioning guide post 14 that is fixedly connected to the top of the base 1 and penetrates the top plate 2, and the positioning guide post 14 is slidably connected to the top plate 2.

[0032] In this embodiment, there are two positioning guide posts 14, which are symmetrically distributed on the top of the base 1.

[0033] By adopting the above technical solution, the top plate 2 can be positioned by setting the positioning guide post 14, thereby improving the stability of the positioning plate 2 during lifting and lowering.

[0034] The working principle of the above embodiments is as follows:

[0035] First, the workers install the device on the platform. Then, they place the bent blade between the upper unloading plate 5 and the floating mold core 6. Next, the hydraulic press is started to move the top plate 2 downward. At this time, the top plate 2 will move the upper unloading plate 5 and the floating mold core 6 downward and press the blade into place. Then, a downward force is applied to compress the rubber block 9. At this time, the connecting plate 4 moves the punch 8 into the blade. At the same time, the lower unloading plate 11 also moves the bottom punch 8 into the blade due to the pressure, thus completing the punching and cutting effect on the blade. After the punching is completed, the return spring 13 and the rubber block 9 simultaneously reset the upper unloading plate 5 and the floating mold core 6, and the workers can then remove the blade.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A die for punching blades, comprising a base (1) and a top plate (2) disposed on the top of the base (1), characterized in that: Two mold guide rails (3) are fixedly connected to the side of the base (1) near the top plate (2), and a punching mold structure capable of punching the blade is provided between the two mold guide rails (3). The punching die structure includes a connecting plate (4) fixedly connected to the top plate (2) near the base (1). The bottom of the connecting plate (4) is provided with an upper unloading plate (5). A floating die core (6) is slidably connected between the two die guide rails (3). A limit block (7) is fixedly connected to the side of the upper unloading plate (5) near the connecting plate (4). A punch (8) is fixedly connected to the bottom of the connecting plate (4) and passes through the upper unloading plate (5) and the limit block (7).

2. The die for punching blades according to claim 1, characterized in that: The floating mold core (6) has a punch hole inside that is compatible with the punch (8), and a rubber block (9) is fixedly connected between the upper unloading plate (5) and the connecting plate (4).

3. The die for punching blades according to claim 1, characterized in that: The base (1) is fixedly connected to a fixed seat (10) on the side near the floating mold core (6). A lower unloading plate (11) is provided on the top of the fixed seat (10). A limit block (7) and a punch (8) are distributed between the fixed seat (10) and the lower unloading plate (11).

4. The die for punching blades according to claim 1, characterized in that: The number of the limiting blocks (7) and punches (8) is eighteen in total. The eighteen limiting blocks (7) and punches (8) are evenly distributed on the side of the upper unloading plate (5) and the lower unloading plate (11) that are separated.

5. The die for punching blades according to claim 1, characterized in that: A positioning plate (12) is fixedly connected to the top of the two mold guide rails (3). The upper unloading plate (5) and the lower unloading plate (11) are both located on the front of the two mold guide rails (3). The positioning plate (12) is in contact with the upper unloading plate (5).

6. The die for punching blades according to claim 1, characterized in that: A return spring (13) is fixedly connected to the opposite side of the base (1) and the floating mold core (6). The return spring (13) is located between the two mold guide rails (3), and there are three return springs (13).

7. A die for punching blades according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a positioning guide post (14) that penetrates the top plate (2). The positioning guide post (14) is slidably connected to the top plate (2). There are two positioning guide posts (14), which are symmetrically distributed on the top of the base (1).

8. The die for punching blades according to claim 1, characterized in that: A support plate (15) is fixedly connected to one side of the base (1), and an abutment plate (16) is fixedly connected to the side of the support plate (15) near the floating mold core (6).

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