Bending die for plate-shaped part with bending structure

Abstract

The bending die is used for bending the plate-shaped part and comprises an upper die base, an upper die plate, a lower die plate and a lower die base, the upper die plate is fixed to the upper die base, a bending piece is arranged on the upper die plate, an arc-shaped groove matched with the outer side of the bending portion of the plate-shaped part in shape is formed in the bending piece, and the lower die base is fixed to the lower die plate. The lower die plate is fixed to the lower die base, and a receding hole is formed in the lower die base. The lower die plate comprises a fixing block and a sliding block, the fixing block is provided with a step and a sliding groove, the step is matched with the shape of the inner side of a fixing portion of the plate-shaped part, the sliding groove is of a T-shaped structure, the sliding block is provided with a guide block of a T-shaped structure, and the guide block is matched with the sliding groove. The contact face of the guide block and the sliding groove is an inclined face inclined relative to the other side of the step, and the sliding block is provided with an arc-shaped support matched with the inner side of the bent portion in shape. Compared with the prior art, the mold has the advantages of high molding precision, high demolding efficiency and the like.

Description

Technical Field

[0001] The present invention relates to the field of forming devices, and in particular to a bending die for plate-shaped parts with a bending structure. Background Art

[0002] There are various large plate-shaped parts in the outdoor unit of an air conditioner, which play an important role in the heat dissipation of the outdoor unit of the air conditioner and the fixation of the internal structure. However, for the bending of plate-shaped parts with a right-angled structure, since inwardly bent edges are provided at the edge positions of both right-angled sides, after the plate-shaped part is bent, the demolding of the part is relatively complicated, reducing the forming efficiency of the plate-shaped part. Therefore, a bending die that is convenient for forming and easy to demold after forming is required. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects of the prior art that inwardly bent edges are provided at the edge positions of both right-angled sides of the right-angled plate-shaped part, and after the plate-shaped part is bent, the demolding of the part is relatively complicated, reducing the forming efficiency of the plate-shaped part, and to provide a bending die for plate-shaped parts with a bending structure.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A bending die for plate-shaped parts with a bending structure, used for bending plate-shaped parts, includes an upper die base, an upper template, a lower template, and a lower die base. The upper template is fixed on the upper die base, a bending member is provided on the upper template, and an arc-shaped groove that matches the shape of the outer side of the bending part of the plate-shaped part is provided on the bending member. The lower template is fixed on the lower die base, and an avoidance hole is provided on the lower die base;

[0006] The lower template includes a fixed block and a slider. A step and a chute are provided on the fixed block. The step matches the shape of the inner side of the fixed part of the plate-shaped part. The chute is of a T-shaped structure. A guiding block with a T-shaped structure that matches the chute is provided on the slider. The contact surface of the guiding block and the chute is an inclined surface that is inclined to the other side of the step. An arc-shaped support that matches the shape of the inner side of the bending part is provided on the slider.

[0007] Preferably, the bending member includes a rotating base and a rotating member. The rotating member is rotatably fixed on the rotating base, and the arc-shaped groove is located on the rotating member.

[0008] Preferably, a limiting groove is provided on the rotating base. The two surfaces of the rotating member in contact with the limiting groove are perpendicular to each other. The limiting groove includes a first limiting edge and a second limiting edge. The included angle between the first limiting edge and the second limiting edge is 95-110°.

[0009] Preferably, the included angle between the inclined contact surface of the chute and the slider and the horizontal plane is 65-75°.

[0010] Preferably, the lower die base is provided with positioning members, and the positioning members are located around the plate-like part.

[0011] Preferably, the mold further comprises an upper stripping plate, the upper stripping plate is fixed on the upper template, and an L-shaped positioning block is provided on the upper stripping plate.

[0012] Preferably, there are multiple positioning blocks, and the positioning blocks are evenly distributed.

[0013] Preferably, a limiting structure is provided between the upper die base and the lower die base.

[0014] Preferably, an upper pad block and an upper supporting plate are provided above the upper die base, and the upper pad blocks are in plurality, one end of the upper pad block is connected to the upper die base, and the other end is connected to the upper supporting plate.

[0015] Preferably, a lower pad and a lower supporting plate are provided below the lower die base, and there are multiple lower pads, one end of each lower pad is connected to the lower die base, and the other end is connected to the lower supporting plate.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] (1) This solution places the plate-like parts to be bent on the steps accordingly, moves the upper mold downward, and bends the corresponding positions of the plate-like parts through the arc groove of the bending part, and cooperates with the arc support on the slider to complete the bending forming of the outer side and the inner side of the bending part. The plate-like part to be bent passes through the avoidance hole, and then the slider slides upward along the slide groove and the inclined contact surface, so that the plate-like part is tilted and moved away from the step, and the plate-like part is demolded.

[0018] By setting a step on the lower template, the bent edge of the plate-like part is supported, and the slider moving along the inclined surface of the slide groove is used to make the formed plate-like part move obliquely, avoiding interference between the bent edge and the lower template, thereby improving the demoulding efficiency of the part.

[0019] (2) In this scheme, the bending part of the upper template adopts a rotating base and a rotating part to bend the bending part with a larger bending arc of the plate-like part, thereby improving the accuracy of the bending part after forming and improving the forming quality of the plate-like part. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the bending die provided by the present invention;

[0021] Figure 2 A structural schematic diagram of a right view of a bending part provided by the present invention;

[0022] Figure 3Schematic structural diagrams of the top view and right view of the fixed base provided by the present invention;

[0023] Figure 4 Schematic structural diagrams of the top view and right view of the slider provided by the present invention;

[0024] Figure 5 Schematic structural diagram of the corrosion of the lower die base provided by the present invention;

[0025] Figure 6 Schematic structural diagram of the plate-shaped part provided by the present invention;

[0026] In the figure: 1. Plate-shaped part, 2. Upper die base, 3. Upper template, 4. Lower template, 5. Lower die base, 6. Upper stripper plate, 7. Upper cushion block, 8. Upper carrier plate, 9. Lower cushion block, 10. Lower carrier plate, 11. Outer side of the bending part, 12. Inner side of the fixed part, 13. Inner side of the bending part, 31. Rotating base, 32. Rotating part, 33. First limiting edge, 34. Second limiting edge, 41. Fixed block, 42. Slider, 43. Step, 44. Chute, 45. Guide block, 51. Avoidance hole. Detailed implementation manners

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0029] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0031] It should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0032] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0033] Embodiment 1

[0034] Such as Figure 1 , this embodiment provides a bending die for a plate-shaped part with a bending structure, which is used for bending the plate-shaped part 1, and includes an upper die base 2, an upper template 3, a lower template 4 and a lower die base 5. The upper template 3 is fixed on the upper die base 2, and a bending member is provided on the upper template 3. An arc groove is provided on the bending member, which is matched with the shape of the outer side 11 of the bending part of the plate-shaped part 1. The lower template 4 is fixed on the lower die base 5, and an avoidance hole 51 is provided on the lower die base 5;

[0035] The lower template 4 includes a fixed block 41 and a slider 42. A step 43 and a sliding groove 44 are provided on the fixed block 41. The step 43 is matched with the shape of the inner side 12 of the fixed part of the plate-shaped part 1. The sliding groove 44 is a T-shaped structure. A guide block 45 with a T-shaped structure matched with the sliding groove 44 is provided on the slider 42. The contact surface between the guide block 45 and the sliding groove 44 is an inclined surface inclined to the other side of the step 43. An arc support matched with the shape of the inner side 13 of the bending part is provided on the slider 42.

[0036] Working principle: Place the plate-shaped part to be bent correspondingly on the step 43. The upper die 4 moves downward. Through the arc-shaped groove of the bending part, the corresponding position of the plate-shaped part 1 is bent. With the arc-shaped support on the slider 42, the bending of the outer side 11 and the inner side 12 of the bending part is completed. The part to be bent of the plate-shaped part 1 passes through the avoidance hole. Then, the slider 42 slides upward along the inclined contact surface along the chute 44, so that the plate-shaped part 1 moves obliquely and disengages from the step 43, and the plate-shaped part 1 is demolded.

[0037] In this solution, the plate-shaped part to be bent is placed correspondingly on the step 43. The upper die 4 moves downward. Through the arc-shaped groove of the bending part, the corresponding position of the plate-shaped part 1 is bent. With the arc-shaped support on the slider 42, the bending of the outer side 11 and the inner side 12 of the bending part is completed. The part to be bent of the plate-shaped part 1 passes through the avoidance hole. Then, the slider 42 slides upward along the inclined contact surface along the chute 44, so that the plate-shaped part 1 moves obliquely and disengages from the step 43, and the plate-shaped part 1 is demolded. By setting the step 43 on the lower template 4 to support the bending edge of the plate-shaped part 1 and cooperating with the slider 42 moving along the inclined plane of the chute 44, the formed plate-shaped part 1 moves obliquely, avoiding interference between the bending edge and the lower template, and improving the demolding efficiency of the part.

[0038] Optionally, the bending part includes a rotating base 31 and a rotating part 32. The rotating part 32 is rotatably fixed on the rotating base 31, and the arc-shaped groove is located on the rotating part 32. A limiting groove is provided on the rotating base 31. The two surfaces of the rotating part 32 in contact with the limiting groove are perpendicular to each other. The limiting groove includes a first limiting edge 33 and a second limiting edge 34, and the included angle between the first limiting edge 33 and the second limiting edge 34 is 95 - 110°.

[0039] The bending part of the upper template adopts the cooperation of a rotating base and a rotating part to bend the bending part with a larger bending radian of the plate-shaped part, improving the accuracy after the forming of the bending part and the forming quality of the plate-shaped part.

[0040] Specifically, the included angle between the inclined contact surface of the chute 44 and the slider 42 and the horizontal plane is 65 - 75°. A positioning part is provided on the lower die base 5, and the positioning part is located around the plate-shaped part 1. The mold further includes an upper stripping plate 6. The upper stripping plate 6 is fixed on the upper template 4, and an L-shaped positioning block is provided on the upper stripping plate 6. The number of positioning blocks is multiple, and each positioning block is evenly distributed. It improves the position accuracy of the bending of the plate-shaped part 1 and the final forming accuracy.

[0041] Among them, a limiting structure is provided between the upper die base 2 and the lower die base 5 to ensure the safety of die stamping. An upper cushion block 7 and an upper supporting plate 8 are provided above the upper die base 2. The number of the upper cushion blocks 7 is multiple. One end of the upper cushion block 7 is connected to the upper die base 2, and the other end is connected to the upper supporting plate 8. A lower cushion block 9 and a lower supporting plate 10 are provided below the lower die base 5. The number of the lower cushion blocks 9 is multiple. One end of each lower cushion block 9 is connected to the lower die base 5, and the other end is connected to the lower supporting plate 10.

[0042] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations according to the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A bending die for a plate-shaped part with a bending structure, used for bending the plate-shaped part (1), characterized in that It includes an upper die base (2), an upper template (3), a lower template (4) and a lower die base (5). The upper template (3) is fixed on the upper die base (2). A bending part is provided on the upper template (3), and an arc-shaped groove is provided on the bending part, which is matched with the shape of the outer side (11) of the bending part of the plate-shaped part (1). The lower template (4) is fixed on the lower die base (5), and an avoidance hole (51) is provided on the lower die base (5). The lower template (4) includes a fixed block (41) and a sliding block (42). A step (43) and a sliding groove (44) are provided on the fixed block (41). The step (43) is matched with the shape of the inner side (12) of the fixed part of the plate-shaped part (1). The sliding groove (44) is of a T-shaped structure. A guiding block (45) with a T-shaped structure matched with the sliding groove (44) is provided on the sliding block (42). The contact surface between the guiding block (45) and the sliding groove (44) is an inclined surface inclined to the other side of the step (43). An arc-shaped support matched with the shape of the inner side (13) of the bending part is provided on the sliding block (42).

2. The bending die for a plate-shaped part with a bending structure according to claim 1, wherein, The bending part includes a rotating base (31) and a rotating part (32). The rotating part (32) is rotatably fixed on the rotating base (31), and the arc-shaped groove is located on the rotating part (32).

3. The bending die for a plate-shaped part with a bending structure according to claim 2, characterized in that, A limiting groove is provided on the rotating base (31). The two surfaces of the rotating part (32) contacting the limiting groove are perpendicular to each other. The limiting groove includes a first limiting edge (33) and a second limiting edge (34), and the included angle between the first limiting edge (33) and the second limiting edge (34) is 95 - 110°.

4. The bending die for a plate-shaped part with a bending structure according to claim 1, characterized in that The included angle between the inclined contact surface of the sliding groove (44) and the sliding block (42) and the horizontal plane is 65 - 75°.

5. A bending die for a plate-shaped part with a bending structure according to claim 1, characterized in that, A positioning part is provided on the lower die base (5), and the positioning part is located around the plate-shaped part (1).

6. The bending die for a plate-shaped part with a bending structure according to claim 1, characterized in that, The die also includes an upper stripper plate (6). The upper stripper plate (6) is fixed on the upper template (4), and an L-shaped positioning block is provided on the upper stripper plate (6).

7. A bending die for a plate-shaped part with a bending structure according to claim 6, characterized in that, The number of the positioning blocks is multiple, and each positioning block is evenly distributed.

8. A bending die for a plate-shaped part with a bending structure according to claim 1, characterized in that, A limiting structure is provided between the upper die base (2) and the lower die base (5).

9. The bending die for a plate-shaped part with a bending structure according to claim 1, characterized in that An upper cushion block (7) and an upper support plate (8) are provided above the upper die base (2). The number of the upper cushion blocks (7) is multiple. One end of the upper cushion block (7) is connected to the upper die base (2), and the other end is connected to the upper support plate (8).

10. A bending die for a plate-shaped part with a bending structure according to claim 1, characterized in that, A lower cushion block (9) and a lower support plate (10) are provided below the lower die base (5). The number of the lower cushion blocks (9) is multiple. One end of each lower cushion block (9) is connected to the lower die base (5), and the other end is connected to the lower support plate (10).

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