Continuous stamping die for air conditioner chassis box

Abstract

The utility model relates to a continuous stamping die of an air conditioner chassis box, which comprises an upper die holder, a lower die holder and a feeding piece, a punching template group, a trimming template group, a forming template group and a blanking template group are sequentially arranged between the upper die holder and the lower die holder, one end of the air conditioner chassis box is provided with a notch, the periphery of the outer contour of the air conditioner chassis box is provided with a curled edge, and the edge of the air conditioner chassis box is provided with a notch. A burr pressing template group is arranged between the forming template group and the blanking template group; the burr pressing template set comprises a pressing groove matched with a protruding part of the air conditioner chassis box and an ejector block matched with a groove part of the air conditioner chassis box, a receding hole corresponding to a notch is formed in one end of the ejector block, and the pressing groove corresponds to the ejector block in position up and down. The telescopic piece moves in the vertical direction and is suitable for rebounding the workpiece into the feeding piece, and the feeding piece is located between the upper die base and the lower die base. Compared with the prior art, the punching die has the advantages that the roughness of the surface of the air conditioner chassis can be reduced while continuous punching is guaranteed, and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning spare part preparation device field especially air conditioner chassis box's continuous stamping die. BACKGROUND

[0002] The main function of air conditioner chassis feet is to support the outdoor unit of the air conditioner and ensure its stable placement. This helps to prevent the air conditioner from tipping over or shifting due to vibration or external forces during operation. As the basic structural components of the outdoor unit, the strength and rigidity of the chassis feet are crucial. They must be able to withstand the weight of the outdoor unit and the vibration and load during operation. Therefore, the chassis feet are generally box-shaped with notched and flanged structures. This structure is relatively complex, and the traditional mold processing process takes a long time.

[0003] The existing stamping die includes a base frame, a lower die seat, an upper die seat, a lower die plate, and an upper die plate. The raw material is placed between the upper die plate and the lower die plate during use, and the raw material is aggressively machined by stamping die, bending die, etc. During use of the existing stamping die, it is found that when making parts, the raw material to be processed needs to be cut to the appropriate size first, and then the raw material is placed in different stamping dies according to the processing order. The stamping forming is completed step by step. After each process is completed, the worker manually carries the material plate to the next die. The entire production process requires a large amount of manpower, is troublesome to operate, has very low production efficiency, and different workers have different proficiency. Errors may occur during the operation process, resulting in unstable quality of the produced parts.

[0004] The invention with publication number CN108555137A discloses a continuous automatic forming die for air conditioner chassis, which comprises a main body structure including an upper die seat, a lower die seat arranged below the upper die seat, a bracket arranged at the bottom of the lower die seat, and punching assembly, edge cutting assembly, deep drawing assembly, side edge processing assembly, inclined surface hole flanging assembly, and cutting assembly arranged side by side on the lower die seat. The lower die seat is also provided with a workpiece moving assembly on both sides. The automatic forming die of the invention realizes punching, edge cutting, deep drawing, hole flanging, and cutting processes through the punching assembly, edge cutting assembly, deep drawing assembly, side edge processing assembly, inclined surface hole flanging assembly, and cutting assembly. Only one equipment is needed to complete all processes of the entire air conditioner chassis.

[0005] The existing continuous stamping die can generally perform punching, cutting, bending, and blanking operations on workpiece raw materials. This continuous die can only be used for the forming of general product parts. It is obviously not suitable for box-shaped air conditioner chassis feet with notched and flanged structures and high processing precision requirements. UTILITY MODEL CONTENTS

[0006] The utility model discloses a continuous stamping die of air conditioner chassis box can overcome the defects of the prior art.

[0007] The utility model discloses a continuous stamping die of air conditioner chassis box can overcome the defects of the prior art.

[0008] A continuous stamping die of air conditioner chassis box, including upper die holder, lower die holder and feeding piece, be equipped with punch template group, edge cutting template group, forming template group and blanking template group in proper order between upper die holder and lower die holder, one end of air conditioner chassis box is equipped with the notch, and the outer contour of air conditioner chassis box is equipped with the edge curling, be equipped with the edge curling of forming template group and blanking template group between the template group and the template group of blanking,

[0009] The edge curling of the template group and the template group of blanking include the pressure groove that cooperates with air conditioner chassis box convex part and the top block that cooperates with air conditioner chassis box recessed groove part, one end of top block is equipped with the hole of avoiding position corresponding with the notch, and the position of pressure groove and top block corresponds upside down, the edge curling of the template group still includes telescopic piece, and the telescopic piece moves along the vertical direction and is suitable for the workpiece rebound to feeding piece, and feeding piece is located between upper die holder and lower die holder.

[0010] Preferably, the blanking template group includes an edge curling recess upper die, a material ejecting block, and a supporting lower die;

[0011] The edge curling recess upper die and the material ejecting block are located on one side of the upper die holder close to the lower die holder, the supporting lower die is fixed on the lower die holder, the edge curling recess upper die cooperates with the outer contour shape of the air conditioner chassis box, the supporting lower die cooperates with the inner contour shape of the air conditioner chassis box, and the material ejecting block is located on the upper end of the edge curling recess upper die and is suitable for ejecting the air conditioner chassis box.

[0012] Preferably, the lower die holder is provided with a material guiding piece at one end close to the punch template group.

[0013] Preferably, the material guiding piece includes a material guiding strip and a material guiding pad, the material guiding strip is fixed on both sides of the material guiding pad and forms a material guiding groove.

[0014] Preferably, the forming template group includes a stretching convex lower die and a stretching recess upper die that cooperate with each other; the recessed groove part of the air conditioner chassis box is interference fit with the stretching convex lower die, and the convex part of the air conditioner chassis box is clearance fit with the stretching recess upper die.

[0015] Preferably, the forming template group further includes a shaping convex lower die and a shaping recess upper die that cooperate with each other; the recessed groove part of the air conditioner chassis box is transition fit with the shaping convex lower die, and the convex part of the air conditioner chassis box is transition fit with the shaping recess upper die.

[0016] Preferably, the lower die seat is provided with a scrap cutting punch near one end of the blanking die set, and the upper end of the scrap cutting punch is provided with a bevel part.

[0017] Preferably, the included angle between the bevel part and the horizontal plane ranges from 40 to 50 degrees.

[0018] Preferably, the lower die seat is provided with a gas guide hole located directly below the blanking die set.

[0019] Preferably, the telescopic part comprises an elastic structure and a top rod connected to each other, and the elastic structure is a super elastic glue.

[0020] Compared with the prior art, the utility model has the following advantages:

[0021] (1) In the scheme, the material to be processed is conveyed between the upper die seat and the lower die seat through the feeding part, passes through the punching die set, the trimming die set and the forming die set, and obtains the box structure and the notch and the hem of the air conditioner chassis box, then the burr removal treatment is performed on the air conditioner chassis box through the corresponding pressing groove and the top block of the burr removal die set, then the telescopic part is used to rebound into the feeding part, and the air conditioner chassis box is taken off from the feeding part through the blanking die set.

[0022] The burr removal treatment is performed on the initially formed air conditioner chassis box through the burr removal die set, the continuous processing of the workpiece is completed in cooperation with other processing die sets, the telescopic part rebounds the burr-removed air conditioner chassis box into the feeding part, and the formation of the air conditioner chassis box is ensured not to be interfered. Meanwhile, the periphery of the air conditioner chassis box is subjected to the burr removal treatment, and the surface roughness of the air conditioner chassis box is reduced. Compared with the separate burr removal after the forming and blanking, the stamping burr removal has higher efficiency, the air conditioner chassis box preparation has stronger continuity, and the production cost is reduced.

[0023] (2) The scheme considers that the air conditioner chassis box is provided with a hem around the air conditioner chassis box, and the air conditioner chassis box formed after the hem passes through the supporting lower die is not easy to be taken out from the upper die of the hem groove. The supporting lower die is preliminarily pressed through the material ejecting block, then the air conditioner chassis box is taken out through the movement of the feeding part, the blanking is completed, the formation consistency of the air conditioner chassis box is ensured, the demolding is convenient and fast, and the preparation efficiency of the air conditioner chassis box is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The structure schematic view of the continuous stamping die provided by the utility model is shown in the figure;

[0025] Figure 2 The structure schematic view of the lower die seat provided by the utility model is shown in the figure;

[0026] Figure 3 The structure schematic view of the material guide part provided by the utility model is shown in the figure;

[0027] Figure 4The utility model provides a structure schematic view of air conditioner chassis box.

[0028] In the drawing: 1, upper die holder, 2, lower die holder, 3, feeding piece, 4, edge cutting die plate group, 5, forming die plate group, 6, blanking die plate group, 7, air conditioner chassis box, 8, burr pressing die plate group, 9, punching die plate group;21, material guide piece, 22, material guide strip, 23, material guide pad, 24, scrap punching head, 25, air guide hole;51, stretch protruding lower die, 52, stretch recess upper die, 53, shaping protruding lower die, 54, shaping recess upper die;61, flanging recess upper die, 62, material ejecting block, 63, supporting lower die;71, notch, 72, flange;81, pressing groove, 82, ejecting block, 83, telescopic piece. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0031] It should be noted that: similar signs and letters represent 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.

[0032] In the description of the utility model, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0033] It should be noted that the terms "first", "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0034] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. As "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0035] Embodiment 1

[0036] As shown in Figure 1 and Figure 4 The present embodiment provides a continuous stamping die for an air conditioner chassis box, comprising an upper die seat 1, a lower die seat 2 and a feeding piece 3, a punching die plate set 9, a trimming die plate set 4, a forming die plate set 5 and a blanking die plate set 6 are sequentially arranged between the upper die seat 1 and the lower die seat 2, one end of the air conditioner chassis box 7 is provided with a notched 71, and the outer contour of the air conditioner chassis box is provided with a curled edge 72, and a burr pressing die plate set 8 is arranged between the forming die plate set 5 and the blanking die plate set 6.

[0037] The burr pressing die plate set 8 comprises a pressing groove 81 matched with the protruding part of the air conditioner chassis box 7, and a top block 82 matched with the recessed part of the air conditioner chassis box 7, one end of the top block 82 is provided with a position avoiding hole corresponding to the notched 71, the positions of the pressing groove 81 and the top block 82 correspond to each other in up and down directions, the burr pressing die plate set 8 further comprises a telescopic piece 83, which is adapted to rebound the workpiece into the feeding piece 3 by moving in the vertical direction, and the feeding piece 3 is located between the upper die seat 1 and the lower die seat 2.

[0038] Working principle: the material to be processed is conveyed between the upper die seat 1 and the lower die seat 2 through the feeding piece 3, and passes through the punching die plate set 9, the trimming die plate set 4 and the forming die plate set 5 to obtain the box structure, the notched and the curled edge of the air conditioner chassis box 7, then the air conditioner chassis box 7 is deburred by the corresponding pressing groove 81 and the top block 82 of the burr pressing die plate set 8, then the telescopic piece 83 is used to rebound into the feeding piece 3, and the air conditioner chassis box 7 is taken off from the feeding piece 3 through the blanking die plate set 6.

[0039] The preliminary formed air conditioner chassis box 7 is deburred by the deburring die set 8, and the continuous processing of the workpiece is completed in cooperation with other processing die sets. The stretchable part 83 returns the deburred air conditioner chassis box 7 to the feeding part 3, so as to ensure that the air conditioner chassis box 7 is not interfered with the forming. At the same time, the periphery of the air conditioner chassis box 7 is deburred, so as to reduce the surface roughness of the air conditioner chassis box 7. Compared with the deburring after the forming and blanking, the efficiency of the stamping deburring is higher, the continuity of the preparation of the air conditioner chassis box 7 is stronger, and the production cost is also reduced.

[0040] The punching die set 9 and the trimming die set 4 can be realized by setting corresponding punches, cutting blocks and material leakage holes according to the hole positions on the product, which belong to the prior art, and thus will not be described in detail.

[0041] The preferred embodiment, as shown in Figure 1 The blanking die set 6 includes a flange groove upper die 61, a material ejecting block 62 and a supporting lower die 63. The flange groove upper die 61 and the material ejecting block 62 are located on one side of the upper die seat 1 close to the lower die seat 2, and the supporting lower die 63 is fixed on the lower die seat 2. The flange groove upper die 61 is matched with the outer profile shape of the air conditioner chassis box 7, the supporting lower die 63 is matched with the inner profile shape of the air conditioner chassis box 7, and the material ejecting block 62 is located at the upper end of the flange groove upper die 61 and is suitable for ejecting the air conditioner chassis box 7.

[0042] Considering that the air conditioner chassis box 7 is provided with a flange around the periphery, the air conditioner chassis box 7 formed after the flange is formed by the supporting lower die 63 is not easy to be ejected from the flange groove upper die 61. The supporting lower die 63 is initially pressed by the material ejecting block 62, and then the air conditioner chassis box 7 is ejected by the movement of the feeding part 3 to complete the blanking, so as to ensure the consistency of the forming of the air conditioner chassis box 7, and the ejection is convenient and fast, and the preparation efficiency of the air conditioner chassis box 7 is improved.

[0043] Specifically, as shown in Figure 1 and 3 The lower die seat 2 is provided with a material guiding part 21 at one end close to the punching die set 9.

[0044] The material guiding part 21 includes a material guiding strip 22 and a material guiding pad 23, and the material guiding strip 22 is fixed on both sides of the material guiding pad 23 and forms a material guiding groove.

[0045] By setting the material guiding part 21 on one side of the die, the material guiding groove matched with the shape of the material is formed by the material guiding strips 22 on both sides of the material guiding pad 23, so as to preliminarily guide and support the material, improve the positioning accuracy of the material entering between the punching die sets 9, and reduce the possibility of deformation of the material in the conveying process.

[0046] In a preferred embodiment, the forming template group 5 includes a lower stretching protrusion mold 51 and an upper stretching groove mold 52 that cooperate with each other; the groove portion of the air conditioner chassis box 7 is interference-fitted with the lower stretching protrusion mold 51, and the protrusion portion of the air conditioner chassis box 7 is clearance-fitted with the upper stretching groove mold 52.

[0047] Furthermore, the forming template group 5 also includes a lower forming protrusion mold 53 and a higher forming groove mold 54 that cooperate with each other; the groove part of the air conditioner chassis box 7 is transitionally fitted with the lower forming protrusion mold 53, and the protrusion part of the air conditioner chassis box 7 is transitionally fitted with the upper forming groove mold 54.

[0048] The forming template group 5 includes a preliminary stretching structure and a further shaping structure for forming the air conditioner chassis box 7. The forming protrusion lower die 53 and the forming groove upper die 54 produce a material structure with the same shape but slightly larger volume than the air conditioner chassis box 7. Then, the forming protrusion lower die 53 and the forming groove upper die 54 are used again to make the volume of the material structure the same as the air conditioner chassis box 7. Compared to directly forming the air conditioner chassis box 7, the pre-stretching structure significantly improves the dimensional and shape accuracy of the obtained air conditioner chassis box 7.

[0049] Specifically, a scrap cutting punch 24 is provided at one end of the lower die base 2 near the blanking template group 6, and the upper end of the scrap cutting punch 24 has a beveled surface. The angle between the beveled surface and the horizontal plane is in the range of 40-50 degrees. The angle between the beveled surface and the horizontal plane is preferably 45 degrees. The inclined end face facilitates the sliding and collection of the formed air conditioner chassis box 7.

[0050] Among them, such as Figure 2 As shown, the lower mold base 2 is provided with an air guide hole 25, which is located directly below the blanking template group 6.

[0051] In this embodiment, the telescopic component 83 includes an interconnected elastic structure and a push rod. The elastic structure is urethane. When the mold closes, the push rod compresses the urethane. When the upper and lower molds separate, the elastic structure of the urethane resets, causing the push rod to lift the workpiece on the template. In other words, the rebound of the elastic structure allows the product on the lower mold to return to the feeding component and be smoothly transported to the next processing position.

[0052] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A continuous punching die for an air conditioner chassis box, comprising an upper die seat (1), a lower die seat (2) and a feeding piece (3), a punching die plate set (9), a trimming die plate set (4), a forming die plate set (5) and a blanking die plate set (6) are sequentially arranged between the upper die seat (1) and the lower die seat (2), one end of the air conditioner chassis box (7) is provided with a notch (71), and the outer contour of the air conditioner chassis box is provided with a curled edge (72), characterized in that, The forming die set (5) and the blanking die set (6) are provided with a burr pressing die set (8); The burr pressing die set (8) comprises a pressing groove (81) matched with the protruding part of the air conditioner chassis box (7) and a top block (82) matched with the recessed part of the air conditioner chassis box (7), one end of the top block (82) is provided with a position avoiding hole corresponding to the notch (71), the pressing groove (81) and the top block (82) are correspondingly arranged in up and down positions, the burr pressing die set (8) further comprises a telescopic part (83), the telescopic part (83) is adapted to rebound the workpiece into the feeding part (3) along the vertical direction, and the feeding part (3) is located between the upper die seat (1) and the lower die seat (2).

2. The continuous punching die of an air conditioner chassis box according to claim 1, wherein, The blanking die set (6) comprises a flange groove upper die (61), a material ejecting block (62) and a supporting lower die (63); The flange groove upper die (61) and the material ejecting block (62) are located on the side of the upper die seat (1) close to the lower die seat (2), the supporting lower die (63) is fixed on the lower die seat (2), the flange groove upper die (61) is matched with the outer contour shape of the air conditioner chassis box (7), the supporting lower die (63) is matched with the inner contour shape of the air conditioner chassis box (7), and the material ejecting block (62) is located on the upper end of the flange groove upper die (61) and is adapted to eject the air conditioner chassis box (7).

3. The continuous punching die of an air conditioner chassis box according to claim 1, wherein, The lower die seat (2) is provided with a material guiding part (21) at one end close to the punching die set (9).

4. The continuous punching die of the air conditioner chassis box according to claim 3, wherein, The material guiding part (21) comprises a material guiding strip (22) and a material guiding backing plate (23), the material guiding strip (22) is fixed on both sides of the material guiding backing plate (23) and forms a material guiding groove.

5. The continuous punching die of an air conditioner chassis box according to claim 1, wherein, The forming die set (5) comprises a stretching protruding lower die (51) and a stretching recessed upper die (52) matched with each other; the recessed part of the air conditioner chassis box (7) is interference fit with the stretching protruding lower die (51), and the protruding part of the air conditioner chassis box (7) is clearance fit with the stretching recessed upper die (52).

6. The continuous punching die of an air conditioner chassis box according to claim 5, wherein, The forming die set (5) further comprises a shaping protruding lower die (53) and a shaping recessed upper die (54) matched with each other; the recessed part of the air conditioner chassis box (7) is transition fit with the shaping protruding lower die (53), and the protruding part of the air conditioner chassis box (7) is transition fit with the shaping recessed upper die (54).

7. The continuous punching die of an air conditioner chassis box according to claim 1, wherein, The lower die seat (2) is provided with a waste cutting punch (24) at one end close to the blanking die set (6), and the upper end of the waste cutting punch (24) is provided with a beveled part.

8. The continuous punching die of an air conditioner chassis box according to claim 7, wherein, The included angle between the beveled part and the horizontal plane ranges from 40 to 50 degrees.

9. The continuous punching die of an air conditioner chassis box according to claim 1, wherein, The lower die seat (2) is provided with a gas guiding hole (25) located directly below the blanking die set (6).

10. The continuous stamping die for an air conditioner chassis box according to claim 1, wherein The telescopic part (83) comprises an elastic structure and a top rod connected with each other, and the elastic structure is a super elastic glue.

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