A device for producing integrated blades

Abstract

The present invention provides a device for producing one-piece blades, belonging to the technical field of impellers. It solves the technical problems that existing equipment cannot produce one-piece blade rings, etc. A lower template is fixed on the lower base plate of the device for producing one-piece blades, a lower groove is provided at the rear end of the lower template, a lower mold for forming the blade body is provided on the bottom of the lower groove, an upper groove is provided at the rear end of the upper template, a through hole for passing the upper template is provided at the bottom of the upper groove, an upper mold that can move up and down with the upper base plate is fixedly connected to the upper base plate, the upper mold can pass through the through hole and cooperate with the lower mold to stamp out the blade body. The present invention forms the blade body by stamping out through the cooperation of the upper mold and the lower mold, and then forms the folding part through the cooperation of the stamping mechanism, the clamping mechanism and the pressing mechanism. Subsequently, the production of the one-piece blade ring can be realized by fixing the two ends of the cut plate, with fast production speed and high efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of impellers, and in particular relates to a device for producing integrated blades. Background Art

[0002] Centrifugal fans are widely used in various fields, such as industrial and daily life. They are mainly composed of an impeller and a casing. The structures of the impellers of existing centrifugal fans are diverse, some are manufactured by welding, and some are manufactured by assembly.

[0003] At present, the impeller of the existing centrifugal fan is generally a centrifugal wind wheel as disclosed in the invention with application number "201710662296.7", including a blade ring and a hub, the blade ring is a sheet metal part, the blade ring is connected by a plurality of blades arranged at intervals, the hub is arranged on the blade ring, and the outer peripheral wall of the hub is provided with a plurality of slots arranged at intervals along the circumferential direction, and the plurality of blades are inserted into the slots one by one.

[0004] When installing the centrifugal wind wheel, the blades need to be fixed to the hub one by one manually or by machine, which has low work efficiency. In order to solve the above technical problems, the applicant has designed an integrated blade ring. However, how to produce the above integrated blade ring has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The object of the present invention is to provide an apparatus for producing a one-piece blade.

[0006] The object of the present invention is achieved in that:

[0007] A device for producing one-piece blades, comprising a lower base plate and an upper base plate that can move up and down relative to the lower base plate, characterized in that: a lower template is fixed on the lower base plate, the rear end of the lower template is provided with a lower groove with a notch facing upward, the rear end of the lower groove is open, and a lower mold for forming a blade body is provided on the bottom of the groove of the lower groove, an upper template is provided on the upper side of the lower template, a gap for a plate to pass through is provided between the upper side surface of the lower template and the lower side surface of the upper template, an upper groove with a notch facing downward and cooperating with the lower groove is provided at the rear end of the upper template, the rear end of the upper groove is open, and a through hole is provided at the bottom of the groove of the upper groove for passing the upper template, an upper mold that can move up and down with the upper base plate is fixedly connected to the upper base plate, and the upper mold can pass through the through hole and cooperate with the lower mold to stamp out the blade body.

[0008] In the above-mentioned device for producing integrated blades, the through hole is rectangular, the cross-sections of the upper die and the lower die are both the same rectangle as the through hole, the front groove wall of the lower groove, the front groove wall of the upper groove and the front hole wall of the through hole are all located in the same vertical plane, the front side surface of the lower die is in close contact with the front groove wall of the lower groove, the front side surface of the upper die is in close contact with the front side wall of the upper groove, the rear end of the lower groove is upwardly formed with a fan-shaped columnar protrusion, the arc surface of the columnar protrusion faces forward, the rear end of the upper die is provided with an arc groove that cooperates with the columnar protrusion, the arc length of the arc surface is greater than or equal to the width of the lower die, the upper end of the lower die extends from the upper surface of the lower template; the distance between the upper end of the lower die and the bottom of the lower groove is 3-6 times the distance between the upper end of the lower die and the upper surface of the lower template. The structural design of the above-mentioned upper die and lower die facilitates rapid stamping to form the blade body.

[0009] In the above-mentioned device for producing an integrated blade, the rear sides of the lower template and the upper template are sequentially provided with a punching mechanism, a clamping mechanism and a pressing mechanism for forming a folded portion.

[0010] In the above-mentioned device for producing integrated blades, the stamping mechanism includes two lower stamping die seats fixedly connected to the lower base plate and two upper stamping die seats fixedly connected to the upper base plate, the two upper stamping die seats are symmetrically arranged on the left and right, and the two lower stamping die seats are symmetrically arranged on the left and right. A stamping insert is fixed at the lower end of the upper stamping die seat, and an "Ω"-shaped stamping groove is provided on the lower end surface of the stamping insert. A stamping punch with an upper end shape that matches the stamping groove is provided on the lower stamping die seat, and the stamping punch can press the edge of the plate into the stamping groove to form an "Ω"-shaped pre-folding portion. The special shape design of the above-mentioned stamping groove and stamping punch facilitates subsequent clamping and pressing operations, which is conducive to improving production efficiency and forming stability.

[0011] The lock body has two camshafts, each of which has two camshafts that are symmetrically arranged at the bottom and at the bottom, and a clamping block that is slidably connected to the lock body and can be slidably connected to the lock body along the front and rear directions. The design of the clamping mechanism can quickly clamp the pre-folded portion, facilitating subsequent pressing operations, and the structure has good clamping stability, avoiding deformation of the upper end of the pre-folded portion during clamping, which affects the subsequent pressing effect.

[0012] In the above-mentioned device for producing one-piece blades, the pressing mechanism includes two upper pressing die seats that are symmetrically arranged front and back and two lower pressing die seats that are symmetrically arranged front and back, the upper pressing die seats can be slidably fixed on the upper base plate along the front and back direction, and the lower pressing die seats can be slidably fixed on the lower base plate along the front and back direction, the left and right edges of the plate are respectively placed on the upper end surfaces of the two lower pressing die seats, and the upper pressing die seats can flatten the pre-folded portion to form a folded portion as the upper base plate moves downward.

[0013] In the above-mentioned device for producing integrated blades, two oblong punching columns are fixed on the upper base plate, and the punching columns are used to punch the edge of the plate to form an oblong hole. The upper template is provided with a punching hole for the punching column to pass through, and the punching hole is located at the front side of the upper groove. The lower template is provided with a discharge hole that cooperates with the punching hole. The design of the above-mentioned punching hole can reduce the width of the plate in the subsequent punching, clamping and pressing process, which is conducive to improving the stability of the above-mentioned operation and avoiding deformation of other parts due to the excessive width of the plate to be operated during the operation.

[0014] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0015] The present invention cooperates with the upper die and the lower die to stamp out the blade body, and then cooperates with the stamping mechanism, the clamping mechanism and the pressing mechanism to form the folding portion. Subsequently, the production of the integrated blade ring can be achieved by fixing the two ends of the cut plate, with fast production speed and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the connection structure of the upper mold and the lower mold of the present invention.

[0018] Figure 3 It is a structural schematic diagram of the upper template of the present invention.

[0019] Figure 4 It is a structural schematic diagram of the lower template of the present invention.

[0020] Figure 5 yes Figure 1 A partial enlarged view of point A in the middle.

[0021] Figure 6 yes Figure 1 A partial enlarged view of point B in the middle.

[0022] In the figure, 1, upper template; 11, upper groove; 12, upper die; 121, arc groove; 13, stamping column; 2, lower template; 21, lower groove; 22, lower die; 221, columnar protrusion; 3, upper stamping die base; 31, stamping insert; 32, stamping groove; 4, lower stamping die base; 41, stamping punch; 5, clamping die base; 51, clamping fixed block; 52, clamping movable block; 53, clamping groove; 54, upper guide surface; 6, clamping push plate; 61, lower guide surface; 7, upper clamping die base; 8, lower clamping die base; 9, upper base plate; 10, lower base plate. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to specific embodiments of the present invention. Figure 1 —6:

[0024] The equipment for producing integrated blades includes a lower base plate 10 and an upper base plate 9 that can move up and down relative to the lower base plate 10, a lower template 2 is fixed on the lower base plate 10, a rear end of the lower template 2 is provided with a lower groove 21 with a notch facing upward, the rear end of the lower groove 21 is open, and a lower mold 22 for forming the blade body is provided on the bottom of the groove of the lower groove 21, an upper template 1 is provided on the upper side of the lower template 2, a gap for a plate to pass through is provided between the upper side surface of the lower template 2 and the lower side surface of the upper template 1, an upper groove 11 with a notch facing downward and cooperating with the lower groove 21 is provided at the rear end of the upper template 1, the rear end of the upper groove 11 is open, and a through hole that penetrates the upper template 1 is provided at the bottom of the groove of the upper groove 11, an upper mold 12 that can move up and down with the upper base plate 9 is fixedly connected to the upper base plate 9, the upper mold 12 can pass through the through hole and cooperate with the lower mold 22 to punch to form the blade body. The present invention cooperates with the upper die 12 and the lower die 22 to stamp out the blade body, and then cooperates with the stamping mechanism, the clamping mechanism and the pressing mechanism to form the folding portion. Subsequently, the production of the integrated blade ring can be achieved by fixing the two ends of the cut plate, with fast production speed and high efficiency.

[0025] Furthermore, the through hole is rectangular, and the cross-sections of the upper die 12 and the lower die 22 are both the same rectangle as the through hole. The front groove wall of the lower groove 21, the front groove wall of the upper groove 11 and the front hole wall of the through hole are all located in the same vertical plane. The front side surface of the lower die 22 is closely attached to the front groove wall of the lower groove 21, and the front side surface of the upper die 12 is closely attached to the front side wall of the upper groove 11. The rear end of the lower groove 21 is upwardly formed with a fan-shaped columnar protrusion 221, and the arc surface of the columnar protrusion 221 faces forward. The rear end of the upper die 12 is provided with an arc groove 121 that matches the columnar protrusion 221, and the arc length of the arc surface is greater than or equal to the width of the lower die 22. The upper end of the lower die 22 extends from the upper surface of the lower template 2; the distance between the upper end of the lower die 22 and the bottom of the lower groove 21 is 3-6 times the distance between the upper end of the lower die 22 and the upper surface of the lower template 2. The structural design of the above-mentioned upper die 12 and lower die 22 facilitates rapid stamping to form the blade body.

[0026] Furthermore, a punching mechanism, a clamping mechanism and a pressing mechanism for forming a folding portion are sequentially disposed on the rear sides of the lower template 2 and the upper template 1 .

[0027] Furthermore, the stamping mechanism includes two lower stamping die seats 4 fixedly connected to the lower base plate 10 and two upper stamping die seats 3 fixedly connected to the upper base plate 9, the two upper stamping die seats 3 are symmetrically arranged, the two lower stamping die seats 4 are symmetrically arranged, a stamping insert 31 is fixed at the lower end of the upper stamping die seat 3, and a stamping groove 32 in the shape of the "Ω" letter is provided on the lower end surface of the stamping insert 31, and a stamping punch 41 whose upper end shape matches the stamping groove 32 is provided on the lower stamping die seat 4, and the stamping punch 41 can press the edge of the plate into the stamping groove 32 to form a "Ω"-shaped pre-folding portion. The special shape design of the above-mentioned stamping groove 32 and the stamping punch 41 facilitates the subsequent clamping and pressing operations, which is conducive to improving production efficiency and forming stability.

[0028] Furthermore, the clamping mechanism includes two clamping die seats 5 symmetrically arranged on the left and right and two clamping push plates 6 symmetrically arranged on the left and right. The clamping die seats 5 are fixedly connected to the upper base plate 9. The lower end of the clamping die seat 5 is provided with a clamping fixed block 51 fixedly connected to the clamping die seat 5 and a clamping movable block 52 slidably connected to the clamping die seat 5 along the front-to-back direction. The clamping fixed block 51 and the clamping movable block 52 are tightly attached to each other to form an "Ω"-shaped clamping groove 53. The front-to-back distance of the groove wall at the lower end of the clamping groove 53 is smaller than the front-to-back distance of the groove wall at the lower end of the stamping groove 32. The rear end of the clamping movable block 52 is provided with an upper guide surface 54 which is lower in front and higher in the rear. The lower end of the clamping push plate 6 is fixedly connected to the lower base plate 10. The upper end of the clamping push plate 6 is provided with a lower guide surface 61 which cooperates with the upper guide surface 54. The tightening push plate can push the clamping movable block 52 toward the clamping fixed block 51 as the upper base plate 9 moves downward so that it can clamp the lower end of the pre-folded portion. The design of the clamping mechanism can quickly clamp the pre-folded portion, facilitating subsequent pressing operations, and the structure has good clamping stability, avoiding deformation of the upper end of the pre-folded portion during clamping, which affects the subsequent pressing effect.

[0029] Furthermore, the clamping mechanism includes two upper clamping die seats 7 that are symmetrically arranged front and back and two lower clamping die seats 8 that are symmetrically arranged front and back. The upper clamping die seats 7 can be slidably fixed on the upper base plate 9 along the front and back direction, and the lower clamping die seats 8 can be slidably fixed on the lower base plate 10 along the front and back direction. The left and right edges of the plate are respectively placed on the upper end surfaces of the two lower clamping die seats 8. The upper clamping die seat 7 can flatten the pre-folded portion to form a folded portion as the upper base plate 9 moves downward.

[0030] Furthermore, two oblong punching columns 13 are fixed on the upper base plate 9, and the punching columns 13 are used to punch the edge of the plate to form an oblong hole. The upper template 1 is provided with a punching hole for the punching column 13 to pass through, and the punching hole is located on the front side of the upper groove 11. The lower template 2 is provided with a discharge hole that cooperates with the punching hole. The design of the above punching hole can reduce the width of the plate in the subsequent punching, clamping and pressing process, which is conducive to improving the stability of the above operation and avoiding deformation of other parts due to the excessive width of the plate to be operated during the operation.

[0031] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An apparatus for producing an integrated blade, comprising a lower base plate (10) and an upper base plate (9) capable of moving up and down relative to the lower base plate (10), characterized in that: A lower template (2) is fixed on the lower base plate (10); a lower groove (21) with a notch facing upward is provided at the rear end of the lower template (2); the rear end of the lower groove (21) is open; a lower mold (22) for molding a blade body is provided on the bottom of the groove of the lower groove (21); an upper template (1) is provided on the upper side of the lower template (2); a gap for a plate to pass through is provided between the upper side surface of the lower template (2) and the lower side surface of the upper template (1); an upper groove (11) with a notch facing downward and cooperating with the lower groove (21) is provided at the rear end of the upper template (1); the rear end of the upper groove (11) is open; a through hole for penetrating the upper template (1) is provided at the bottom of the groove of the upper groove (11); and the upper base plate (10) is provided with a plurality of grooves. An upper die (12) is fixedly connected to the plate (9) and can move up and down with the upper base plate (9); the upper die (12) can pass through the through hole and cooperate with the lower die (22) to punch and form the blade body; the rear sides of the lower die plate (2) and the upper die plate (1) are sequentially provided with a punching mechanism, a clamping mechanism and a pressing mechanism for forming a folding portion; the punching mechanism comprises two lower punching die seats (4) fixedly connected to the lower base plate (10) and two upper punching die seats (3) fixedly connected to the upper base plate (9); the two upper punching die seats (3) are symmetrically arranged on the left and right, and the two lower punching die seats (4) are symmetrically arranged on the left and right; a punch insert (31) is fixed at the lower end of the upper punching die seat (3); the punch insert (31) A stamping groove (32) in the shape of the Chinese character "Ω" is provided on the lower end surface of the lower stamping die seat (4), and a stamping punch (41) whose upper end shape matches the stamping groove (32) is provided on the lower stamping die seat (4), and the stamping punch (41) can press the edge of the plate into the stamping groove (32) to form a pre-folding portion in the shape of the Chinese character "Ω"; the clamping mechanism comprises two clamping die seats (5) arranged symmetrically on the left and right and two clamping push plates (6) arranged symmetrically on the left and right, the clamping die seats (5) are fixedly connected to the upper base plate (9), the lower end of the clamping die seat (5) is provided with a clamping fixed block (51) fixedly connected to the clamping die seat (5) and a clamping movable block (52) slidably connected to the clamping die seat (5) in the front-rear direction, The clamping fixed block (51) and the clamping movable block (52) are tightly attached to form an "Ω"-shaped clamping groove (53); the front-to-back distance of the groove wall at the lower end of the clamping groove (53) is smaller than the front-to-back distance of the groove wall at the lower end of the punching groove (32); the rear end of the clamping movable block (52) is provided with an upper guide surface (54) which is lower in front and higher in the rear; the lower end of the clamping push plate (6) is fixedly connected to the lower base plate (10); the upper end of the clamping push plate (6) is provided with a lower guide surface (61) which cooperates with the upper guide surface (54); the clamping push plate (6) can push the clamping movable block (52) toward the clamping fixed block (51) as the upper base plate (9) moves downward so that the clamping movable block (52) can clamp the lower end of the pre-folded portion.

2. The device for producing an integrated blade according to claim 1, characterized in that: The through hole is rectangular, the cross-sections of the upper die (12) and the lower die (22) are both rectangular as the through hole, the front groove wall of the lower groove (21), the front groove wall of the upper groove (11) and the front hole wall of the through hole are all located in the same vertical plane, the front side surface of the lower die (22) is closely attached to the front groove wall of the lower groove (21), the front side surface of the upper die (12) is closely attached to the front side wall of the upper groove (11), and the rear end of the lower groove (21) is formed with a fan-shaped columnar protrusion upwards (221), the arc surface of the columnar protrusion (221) faces forward, the rear end of the upper mold (12) is provided with an arc groove (121) matching the columnar protrusion (221), the arc length of the arc surface is greater than or equal to the width of the lower mold (22), and the upper end of the lower mold (22) protrudes from the upper surface of the lower mold (2); the distance between the upper end of the lower mold (22) and the bottom of the lower groove (21) is 3-6 times the distance between the upper end of the lower mold (22) and the upper surface of the lower mold (2).

3. The device for producing an integrated blade according to claim 2, characterized in that: Two oblong punching columns (13) are fixed on the upper base plate (9), and the punching columns (13) are used to punch the edges of the plate to form oblong holes. The upper template (1) is provided with a punching hole for the punching columns (13) to pass through, and the punching hole is located on the front side of the upper groove (11). The lower template (2) is provided with a discharge hole that cooperates with the punching hole.

4. The device for producing an integrated blade according to claim 1, characterized in that: The clamping mechanism comprises two upper clamping die seats (7) symmetrically arranged front and back and two lower clamping die seats (8) symmetrically arranged front and back, the upper clamping die seats (7) can be slidably fixed on the upper base plate (9) along the front and back direction, and the lower clamping die seats (8) can be slidably fixed on the lower base plate (10) along the front and back direction, and the left and right edges of the plate are respectively placed on the upper end surfaces of the two lower clamping die seats (8), and the upper clamping die seats (7) can flatten the pre-folded portion to form a folded portion as the upper base plate (9) moves downward.

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