Wind wheel blade stamping die

Abstract

The utility model discloses a stamping die for a wind wheel blade, which comprises an upper stamping die and a lower stamping die, and is characterized in that the upper stamping die is provided with a punching convex part, a forming convex part and a cutting convex part which are distributed in sequence; a punching concave cavity is formed in the position, corresponding to the punching convex piece, of the punching lower die, a forming concave cavity is formed in the position, corresponding to the forming convex piece, of the punching lower die, and a cutting-off concave cavity is formed in the position, corresponding to the cutting-off convex piece; according to the wind wheel blade stamping die, the punching convex piece and the punching concave cavity are matched to punch the through holes in the two ends of the workpiece, the forming convex piece and the forming concave cavity are matched to punch the workpiece into the blade body, and finally the cutting convex piece and the cutting concave cavity are matched to punch and separate the blade body and the workpiece. Meanwhile, the joint of the end, connected with the workpiece, of the blade body is subjected to forming treatment, so that final machining is completed; through the stamping die, the processes of punching, forming, cutting off and the like can be completed, automatic manufacturing from a workpiece to a wind wheel blade finished product is achieved, the production efficiency is high, and meanwhile the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a wind wheel blade stamping die. Background Art

[0002] During the production process of wind rotor blades, there are certain requirements for their length, the shape of the ends and the curvature of the blade body. In order to meet the manufacturing requirements of wind rotor blades, the long rolled wind rotor blade plates produced need to be cut to size, formed, and separated from waste. Currently, the production steps for manufacturing wind rotor blades are relatively trivial and complicated, and are divided into multiple processes such as punching, bending, and cutting. These processes require the use of multiple molds and are completed multiple times. The automation efficiency is low, many operators are required, the labor cost is high, and the production efficiency is low. Utility Model Content

[0003] The utility model aims to solve the above-mentioned deficiencies in the prior art and to provide a wind wheel blade stamping die with multiple processes concentrated on one die and high production efficiency.

[0004] The purpose of the utility model is achieved in this way:

[0005] A wind wheel blade stamping die comprises a stamping upper die and a stamping lower die, and is characterized in that: the stamping upper die is provided with a punching convex part, a forming convex part and a cutting convex part distributed in sequence, and the stamping lower die is provided with a punching cavity corresponding to the position of the punching convex part, a forming cavity corresponding to the position of the forming convex part, and a cutting cavity corresponding to the position of the cutting convex part; in this wind wheel blade stamping die, the punching convex part and the punching cavity cooperate to punch through holes at both ends of the workpiece, and then the forming convex part and the forming cavity cooperate to punch the workpiece into an arc-shaped curved blade body, and finally the cutting convex part and the cutting cavity cooperate to separate the blade body from the workpiece, and at the same time, in this process, the connection between the blade body and the workpiece at one end is also formed to complete the final processing of the wind wheel blade; through this stamping die, the punching, forming, cutting and other processes can be completed, and the automatic manufacturing of the workpiece to the wind wheel blade product can be realized, and its production efficiency is high, and the labor cost is also reduced.

[0006] The purpose of the utility model can also be solved by the following technical measures:

[0007] Specifically, the punching convex part includes two punching heads, which are respectively fixed on the stamping upper die and there is a gap between the two punching heads. Two through holes are arranged on the stamping lower die corresponding to the positions of the two punching heads, and the two through holes constitute the punching cavity; so that the waste separated by stamping can be discharged from the stamping lower die from the through holes, and the implementation effect is better.

[0008] Specifically, the molding convex part is a molding convex column, and the bottom surface of the molding convex column is recessed upward with an arc-shaped recess, and an arc-shaped block is arranged in the molding cavity at the position corresponding to the arc-shaped recess; the arc-shaped recess of the molding convex column and the arc-shaped block in the molding cavity are stably matched, which is conducive to the stable processing of the workpiece into an arc-shaped curved blade body.

[0009] Specifically, the cutting protrusion is a cutting protrusion, and the bottom surface of the cutting protrusion is recessed with a cutting recess upward, and two arched through holes are opened upward on both sides of the cutting recess. The cross-section of the cutting protrusion is I-shaped, and a cutting through hole is opened on the stamping lower die corresponding to the position of the cutting protrusion. The cross-section of the cutting through hole is I-shaped, and the cutting through hole constitutes the cutting cavity; the I-shaped cutting protrusion and the I-shaped cutting through hole cooperate to achieve the punching separation between the formed blade body and the workpiece, and at the same time, one end of the blade body is finally formed. In addition, the waste separated by stamping can also be discharged from the stamping lower die through the cutting through hole.

[0010] Specifically, a transition cavity is further arranged between the molding cavity and the cutting cavity, and the two ends of the transition cavity are respectively connected to the molding cavity and the cutting cavity, and an arc-shaped supporting block is arranged on the transition cavity; the transition cavity plays a better intermediate transition supporting role, and at the same time the arc-shaped supporting block plays a better supporting role on the blade body, which is beneficial to the subsequent stable processing of the cutting cavity.

[0011] Specifically, the stamping upper die comprises an upper die plate and a movable plate, the upper ends of the punching head, the forming boss and the cutting boss are all fixed on the upper die plate, the movable plate is movably connected to the lower part of the upper die plate and an elastic reset part is arranged between the upper die plate and the movable plate, a punching through-hole is arranged on the movable plate corresponding to the position of the punching head, the lower end of the punching head passes downward through the punching through-hole, a forming through-hole is arranged on the movable plate corresponding to the position of the forming boss, the lower end of the forming boss passes downward through the forming through-hole, a cutting through-hole is arranged on the movable plate corresponding to the position of the cutting boss, and the lower end of the cutting boss passes downward through the cutting through-hole; when no stamping is performed, the movable plate plays a certain protective role on the lower ends of the punching head, the forming boss and the cutting boss, and when stamping, the punching through-hole, the forming through-hole and the cutting through-hole on the movable plate can respectively play a good guiding role for the movement of the punching head, the forming boss and the cutting boss, which is conducive to the accurate and stable stamping work of the punching head, the forming boss and the cutting boss.

[0012] Specifically, the upper template is provided with a connecting column and a mounting column, a connecting hole is opened on the movable plate at a position corresponding to the connecting column, a movable section and a connecting end are provided on the connecting column, the connecting end is connected to the connecting hole and the movable section can move up and down in the connecting hole, a mounting through hole is opened at a position corresponding to the mounting column on the movable plate, one end of the mounting column extends into the mounting through hole, the elastic reset member is sleeved on the outer periphery of the mounting column and the two ends of the elastic reset member are respectively abutted against the upper template and the movable plate; the movable connection of the movable plate on the upper template is realized through the cooperation of the connecting column and the connecting hole, and the mounting column provides an installation carrier for the elastic reset member, so that the elastic reset member can stably drive the movable plate to reset.

[0013] Specifically, the stamping lower die is further provided with two relatively arranged first positioning plates, and the two first positioning plates are respectively provided with punching positioning openings corresponding to the through holes, and the bottom surfaces of the two first positioning plates are both recessed upward with first guide grooves; the punching positioning openings can prevent the movable plate from affecting the cooperation between the punching head and the punching cavity, and the first guide groove plays a better guiding role in the movement of the workpiece.

[0014] Specifically, a second positioning plate is further provided on the stamping lower die, the second positioning plate has a forming positioning opening corresponding to the forming cavity position, the second positioning plate has a cutting positioning opening corresponding to the cutting cavity position, and the bottom surface of the second positioning plate is recessed with a second guide groove upward; so that the workpiece can be formed and cut in sequence under the guidance of the second guide groove; furthermore, the forming positioning opening and the cutting positioning opening can prevent the movable plate from affecting the related work of the forming protrusion and the cutting protrusion, and the implementation effect is better.

[0015] Specifically, an upper die seat is fixed to the top surface of the stamping upper die, and a lower die seat is fixed to the bottom surface of the stamping lower die. The upper die seat and the lower die seat are movably connected, and return springs are arranged around the upper die seat and around the lower die seat; the upper die seat provides a stable mounting and driving carrier for the stamping upper die, and the lower die seat provides a stable mounting box driving carrier for the stamping lower die, thereby ensuring stable stamping fit between the stamping upper die and the stamping lower die.

[0016] The beneficial effects of the utility model are as follows:

[0017] (1) In this wind turbine blade stamping die, the punching convex part and the punching cavity cooperate to punch through holes at both ends of the workpiece, and then the forming convex part and the forming cavity cooperate to punch the workpiece into an arc-shaped curved blade body, and finally the cutting convex part and the cutting cavity cooperate to separate the blade body from the workpiece. At the same time, in this process, the connection between the blade body and the workpiece will also be formed to complete the final processing of the wind turbine blade; this stamping die can complete the punching, forming, cutting and other processes, and realize the automated manufacturing of the workpiece to the wind turbine blade product, which has high production efficiency and reduces labor costs.

[0018] (2) The I-shaped cutting protrusion and the I-shaped cutting through hole cooperate to achieve the punching separation between the formed blade body and the workpiece, and at the same time, the final forming treatment is performed on one end of the blade body. In addition, the waste separated by stamping can also be discharged from the stamping lower die through the cutting through hole.

[0019] (3) When not in stamping operation, the movable plate plays a certain protective role on the lower ends of the punching head, the forming boss and the cutting boss. During stamping, the punching through-holes, the forming through-holes and the cutting through-holes on the movable plate can respectively play a good guiding role for the movement of the punching head, the forming boss and the cutting boss, which is conducive to the accurate and stable stamping operation of the punching head, the forming boss and the cutting boss. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the wind wheel blade stamping die of the utility model.

[0021] Figure 2 It is a schematic diagram of the stamping upper die of the utility model.

[0022] Figure 3 The utility model is a disassembled diagram of the stamping upper die.

[0023] Figure 4 for Figure 3 Enlarged view of point A.

[0024] Figure 5 It is a schematic diagram of the stamping lower die of the utility model.

[0025] Figure 6 This is a disassembled diagram of the stamping lower die of the utility model.

[0026] Figure 7 Schematic diagram of the workpiece after the punching operation.

[0027] Figure 8 This is a schematic diagram of the wind turbine blade after processing. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0029] Example, combined with Figures 1 to 8 As shown, a wind turbine blade stamping die includes a stamping upper die 1 and a stamping lower die 2, and is characterized in that: the stamping upper die 1 is provided with a punching convex part 11, a molding convex part 12 and a cutting convex part 13 distributed in sequence, and the stamping lower die 2 is provided with a punching cavity 21 corresponding to the position of the punching convex part 11, a molding cavity 22 corresponding to the position of the molding convex part 12, and a cutting cavity 23 corresponding to the position of the cutting convex part 13.

[0030] As a specific solution, the punching protrusion 11 includes two punching heads 111, which are respectively fixed on the stamping upper die 1 and there is a gap 100 between the two punching heads 111. Two through holes 211 are arranged on the stamping lower die 2 corresponding to the positions of the two punching heads 111, and the two through holes 211 constitute the punching cavity 21.

[0031] In this embodiment, the molding protrusion 12 is a molding protrusion, and the bottom surface of the molding protrusion is recessed upward with an arc-shaped recess 121 . An arc-shaped block 221 is provided in the molding cavity 22 at a position corresponding to the arc-shaped recess 121 .

[0032] In this embodiment, the cutting protrusion 13 is a cutting protrusion, and a cutting recess 131 is recessed upward on the bottom surface of the cutting protrusion, and two arched through holes 132 are opened upward on both sides of the cutting recess 131. The cross-section of the cutting protrusion 13 is I-shaped, and a cutting through hole is opened on the stamping lower die 2 at the position corresponding to the cutting protrusion 13. The cross-section of the cutting through hole is I-shaped, and the cutting through hole constitutes the cutting cavity 23.

[0033] As a more preferred embodiment, a transition cavity 24 is further provided between the molding cavity 22 and the cutting cavity 23 , and both ends of the transition cavity 24 are respectively connected to the molding cavity 22 and the cutting cavity 23 , and an arc-shaped supporting block 241 is provided on the transition cavity 24 .

[0034] As a more specific scheme, the stamping upper die 1 includes an upper template 14 and a movable plate 15, the upper ends of the punching head 111, the forming boss and the cutting boss are all fixed on the upper template 14, the movable plate 15 is movably connected to the lower part of the upper template 14 and an elastic reset member 3 is arranged between the upper template 14 and the movable plate 15, a punching through-hole 151 is arranged on the movable plate 15 corresponding to the position of the punching head 111, the lower end of the punching head 111 passes downward through the punching through-hole 151, a forming through-hole 152 is arranged on the movable plate 15 corresponding to the position of the forming boss, the lower end of the forming boss passes downward through the forming through-hole 152, a cutting through-hole 153 is arranged on the movable plate 15 corresponding to the position of the cutting boss, and the lower end of the cutting boss passes downward through the cutting through-hole 153.

[0035] In this embodiment, the upper template 14 is provided with a connecting column 141 and a mounting column 142, and a connecting hole 154 is opened on the movable plate 15 at a position corresponding to the connecting column 141, and a movable section 143 and a connecting end 144 are provided on the connecting column 141. The connecting end 144 is connected to the connecting hole 154 and the movable section 143 can move up and down in the connecting hole 154, and a mounting through hole 155 is opened on the movable plate 15 at a position corresponding to the mounting column 142, and one end of the mounting column 142 extends into the mounting through hole 155, and the elastic reset member 3 is sleeved on the outer periphery of the mounting column 142 and the two ends of the elastic reset member 3 are respectively against the upper template 14 and the movable plate 15.

[0036] As a more specific solution, the stamping lower die 2 is further provided with two relatively arranged first positioning plates 25, the two first positioning plates 25 are respectively provided with punching positioning openings 251 corresponding to the through holes 211, and the bottom surfaces of the two first positioning plates 25 are both recessed upward with first guide grooves 252.

[0037] In this embodiment, a second positioning plate 26 is also provided on the stamping lower die 2. The second positioning plate 26 has a molding positioning opening 261 corresponding to the molding cavity 22, and a cutting positioning opening 262 corresponding to the cutting cavity 23. The bottom surface of the second positioning plate 26 has a second guide groove 263 recessed upward.

[0038] As a better embodiment, an upper die seat 4 is fixed to the top surface of the stamping upper die 1, and a lower die seat 5 is fixed to the bottom surface of the stamping lower die 2. The upper die seat 4 and the lower die seat 5 are movably connected and return springs 6 are arranged around the upper die seat 4 and the lower die seat 5.

[0039] Working principle: the workpiece can be a thin plate-like blade. During stamping, the punching protrusion 11 and the punching cavity 21 cooperate to punch out through holes 71 at both ends of the workpiece 7, the molding protrusion 12 and the molding cavity 22 cooperate to punch the workpiece 7 into an arc-shaped curved blade body, and the cutting protrusion 13 and the cutting cavity 23 cooperate to separate the blade body from the workpiece 7. At the same time, in this process, the connection between the blade body and the workpiece 7 at one end is also formed to complete the final processing of the wind wheel blade 8.

Claims

1. A wind turbine blade stamping die, comprising a stamping upper die (1) and a stamping lower die (2), wherein: The stamping upper die (1) is provided with a punching convex part (11), a forming convex part (12) and a cutting convex part (13) which are distributed in sequence; the stamping lower die (2) is provided with a punching cavity (21) at a position corresponding to the punching convex part (11), a forming cavity (22) at a position corresponding to the forming convex part (12), and a cutting cavity (23) at a position corresponding to the cutting convex part (13).

2. The wind wheel blade stamping die according to claim 1 is characterized in that: The punching convex part (11) comprises two punching heads (111), the two punching heads (111) are respectively fixed on the punching upper die (1) and a gap (100) exists between the two punching heads (111), and two through holes (211) are arranged on the punching lower die (2) at positions corresponding to the two punching heads (111), and the two through holes (211) constitute the punching cavity (21).

3. The wind wheel blade stamping die according to claim 2 is characterized in that: The molding convex part (12) is a molding convex column, the bottom surface of which is recessed upwards with an arc-shaped recess (121), and an arc-shaped block (221) is arranged in the molding cavity (22) at a position corresponding to the arc-shaped recess (121).

4. The wind wheel blade stamping die according to claim 3 is characterized in that: The cutting protrusion (13) is a cutting protrusion, the bottom surface of the cutting protrusion is recessed upwards with a cutting recess (131), two sides of the cutting recess (131) are further provided with two arched through holes (132) upwards, the cross section of the cutting protrusion (13) is in the shape of an I, a cutting through hole is provided on the stamping lower die (2) at a position corresponding to the cutting protrusion (13), the cross section of the cutting through hole is in the shape of an I, and the cutting through hole constitutes the cutting recess (23).

5. The wind wheel blade stamping die according to claim 4 is characterized in that: A transition cavity (24) is also provided between the molding cavity (22) and the cutting cavity (23); two ends of the transition cavity (24) are respectively connected to the molding cavity (22) and the cutting cavity (23); and an arc-shaped bearing block (241) is provided on the transition cavity (24).

6. The wind wheel blade stamping die according to claim 4 is characterized in that: The stamping upper die (1) comprises an upper die plate (14) and a movable plate (15); the upper ends of the punching head (111), the forming boss and the cutting boss are all fixed on the upper die plate (14); the movable plate (15) is movably connected to the lower part of the upper die plate (14); an elastic reset member (3) is provided between the upper die plate (14) and the movable plate (15); a punching through-hole (151) is provided on the movable plate (15) at a position corresponding to the punching head (111); the lower end of the punching head (111) passes downward through the punching through-hole (151); a forming through-hole (152) is provided on the movable plate (15) at a position corresponding to the forming boss; the lower end of the forming boss passes downward through the forming through-hole (152); a cutting through-hole (153) is provided on the movable plate (15) at a position corresponding to the cutting boss; the lower end of the cutting boss passes downward through the cutting through-hole (153).

7. The wind wheel blade stamping die according to claim 6 is characterized in that: The upper template (14) is provided with a connecting column (141) and a mounting column (142); a connecting hole (154) is provided on the movable plate (15) at a position corresponding to the connecting column (141); a movable section (143) and a connecting end (144) are provided on the connecting column (141); the connecting end (144) is connected to the connecting hole (154) and the movable section (143) can move up and down in the connecting hole (154); a mounting through hole (155) is provided on the movable plate (15) at a position corresponding to the mounting column (142); one end of the mounting column (142) extends into the mounting through hole (155); the elastic reset member (3) is sleeved on the outer periphery of the mounting column (142) and two ends of the elastic reset member (3) are respectively abutted against the upper template (14) and the movable plate (15).

8. The wind wheel blade stamping die according to claim 4 is characterized in that: The stamping lower die (2) is also provided with two first positioning plates (25) arranged opposite to each other, the two first positioning plates (25) are respectively provided with punching positioning openings (251) corresponding to the through holes (211), and the bottom surfaces of the two first positioning plates (25) are both upwardly concave with first guide grooves (252).

9. The wind wheel blade stamping die according to claim 8 is characterized in that: The stamping lower die (2) is also provided with a second positioning plate (26), the second positioning plate (26) having a molding positioning opening (261) corresponding to the molding cavity (22), the second positioning plate (26) having a cutting positioning opening (262) corresponding to the cutting cavity (23), and a second guide groove (263) recessed upwards on the bottom surface of the second positioning plate (26).

10. The wind wheel blade stamping die according to claim 1, characterized in that: An upper die seat (4) is also fixed to the top surface of the stamping upper die (1), and a lower die seat (5) is also fixed to the bottom surface of the stamping lower die (2). The upper die seat (4) and the lower die seat (5) are movably connected, and return springs (6) are provided around the upper die seat (4) and around the lower die seat (5).

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