Stamping and blanking die for ring part with recess

Abstract

The utility model discloses a stamping blanking die of annular part with concave hole. The die is preliminarily stamped into the intermediate workpiece at the fifth station, and the two workpieces of side edge are preliminarily stamped into shape at the sixth station, the preliminary forming of three workpieces is distributed in two different stations to complete, and the machining stress can be dispersed to avoid the deformation of workpiece, and the lower die plate is provided with three ejection through holes at the seventh station, the ejection through hole is provided with elastic ejection block, the elastic ejection block is provided with the avoiding notch of avoiding the positioning groove on the workpiece, and the three workpieces are punched and cut at the eighth station, so that the effect of the stress of blanking punching on the stamping forming of workpiece is reduced, and the machining quality of workpiece is ensured.

Description

Technical Field

[0001] This utility model relates to stamping dies, specifically to a stamping blanking die for a ring-shaped part with a concave hole. Background Technology

[0002] In the production of ring-shaped parts with concave holes, progressive dies are generally used for continuous stamping to improve processing efficiency. The process typically involves punching the concave hole, creating a central through hole, forming, and then blanking. However, due to the small size of the parts and the stress reaction between the punch and the product, the stamped parts often deform, with the inner ring concave inwards, resulting in a high scrap rate and high processing costs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a stamping blanking die for a high-quality annular part with a concave hole.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a stamping blanking die for a ring-shaped part with a concave hole, including an upper die base and a lower die base, the upper die base and the lower die base are provided with nine processing stations, and a lower template is provided on the lower template; a side punch punch for positioning holes on the side of the stamping sheet is provided on the upper die base at the first station, and a matching side punch die button is provided on the lower template;

[0005] The upper die base has a punching die assembly for punching three positioning grooves on the workpiece at the second station, and a matching die button assembly on the lower die plate; the upper die base has a central punching punch for punching central through holes in three workpieces at the third station, and a central punching die button matching the punching punch on the lower die plate; the lower die plate has three sets of clearance recesses matching the positioning grooves on the workpiece at the third station.

[0006] The lower die plate has three sets of clearance recesses at the fourth station that cooperate with the positioning grooves on the workpiece; the upper die plate has a middle upper forming block for the intermediate workpiece that is initially punched at the fifth station; the lower die plate has a corresponding middle lower forming block; the lower die plate has three sets of clearance recesses at the fifth station that cooperate with the positioning grooves on the workpiece.

[0007] The upper die base has a side forming upper punch at the sixth station for initially punching two workpieces on the side, and the lower die plate has a matching side forming lower punch; the lower die plate has three sets of clearance recesses at the sixth station that match the positioning grooves on the workpiece.

[0008] The lower die plate has three ejector holes at the seventh station, and elastic ejector blocks are provided in the ejector holes. The elastic ejector blocks are provided with clearance notches to avoid the positioning grooves on the workpieces. The upper die plate has a blanking punch for punching and blanking three workpieces at the eighth station. The lower die plate has a discharge hole for the punched workpieces to fall. The upper die plate has an upper scrap cutting block at the ninth station that cooperates with the edge of the lower die plate to cut the sheet metal.

[0009] As a preferred embodiment, the three punch modules are arranged in a triangular shape.

[0010] As a preferred embodiment, the upper mold base is provided with positioning pins at the second to sixth work stations, which mate with the positioning holes on the upper side of the sheet metal.

[0011] As a preferred embodiment, the lower template is provided with a number of side positioning blocks that restrict the position of the side edges of the sheet metal.

[0012] As a preferred embodiment, the lower template is provided with a pair of guide blocks on the feeding side of the sheet metal, corresponding to the two sides of the sheet metal respectively.

[0013] The beneficial effects of this utility model are:

[0014] Because the upper die base of this mold has a central forming block for preliminary forming of intermediate workpieces at the fifth station; and a side forming upper punch for preliminary forming of two side workpieces at the sixth station; by distributing the preliminary forming of the three workpieces to two different stations, the processing stress can be dispersed to avoid workpiece deformation; and the lower die plate has three ejector through holes at the seventh station, with elastic ejector blocks in the ejector through holes, and the elastic ejector blocks have clearance notches to avoid the positioning grooves on the workpieces; and the upper die base has a blanking punch for blanking three workpieces at the eighth station, the effect of blanking and blanking stress on workpiece forming is reduced, thereby ensuring the processing quality of the workpieces.

[0015] Because the three punch modules are arranged in a triangular shape, the utilization rate of raw materials is improved and the stamping stress is distributed in a dispersed manner, avoiding stamping deformation and ensuring processing quality.

[0016] Because the upper die base is equipped with positioning pins at the second to sixth stations that mate with the positioning holes on the upper side of the sheet metal, the positioning of the sheet metal is more accurate, thereby further ensuring the stamping accuracy.

[0017] Because the lower template is equipped with several side positioning blocks that restrict the position of the sheet material's side edges, it ensures that the sheet material will not shift position during feeding.

[0018] The lower template has a pair of guide blocks on the feeding side of the sheet metal, which correspond to the two sides of the sheet metal respectively, to facilitate the guidance during feeding. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the lower mold structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the upper mold structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the material plate structure after processing at each workstation of this utility model.

[0022] In the diagram: 1 Upper die base, 2 Lower die base, 3 Lower template; 4 Side punch, 5 Side punch die button; 6 Punch assembly, 7 Die button assembly; 8 Center punch, 9 Center punch die button; 10 Clearance recess; 11 Center upper forming block; 12 Center lower forming block; 13 Side forming upper punch, 14 Side forming lower punch; 15 Elastic ejector block, 16 Discharge punch, 17 Discharge hole; 18 Upper scrap cutter block; 19 Positioning pin, 20 Guide block, 21 Side positioning block. Detailed Implementation

[0023] The specific implementation scheme of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figure 1-3 As shown, the stamping blanking die for the annular part with concave hole includes an upper die base 1 and a lower die base 2. The upper die base 1 and the lower die base 2 are provided with nine processing stations, and the lower die plate 3 is provided on the lower die plate 3.

[0025] The upper die base 1 is provided with a side punch punch 4 for punching the side positioning holes of the sheet metal at the first station, and the lower die plate 3 is provided with a matching side punch die button 5; the upper die base 1 is provided with a punch die assembly 6 for punching the positioning grooves of three workpieces at the second station, and the lower die plate 3 is provided with a matching die button assembly 7; the three punch die assemblies 6 are arranged in a triangular shape.

[0026] The upper mold base 1 is provided with a central punch 8 at the third station for punching the central through holes of three workpieces; the lower mold plate 3 is provided with a central punch die button 9 that cooperates with the punch; the lower mold plate 3 is provided with three sets of clearance recesses at the third station that cooperate with the positioning groove group on the workpiece; the lower mold plate 3 is provided with three sets of clearance recesses at the fourth station that cooperate with the positioning groove group on the workpiece.

[0027] The upper die base 1 has a central upper forming block 11 for preliminary punching of intermediate workpieces at the fifth station; the lower die plate 3 has a corresponding central lower forming block 12; the lower die plate 3 has three sets of clearance recesses 10 at the fifth station that cooperate with the positioning grooves on the workpiece.

[0028] The upper die base 1 is provided with a side forming upper punch 13 at the sixth station for initially punching two workpieces on the side, and the lower die plate 3 is provided with a matching side forming lower punch 14; the lower die plate 3 is provided with three sets of clearance recesses at the sixth station that match the positioning grooves on the workpiece.

[0029] The lower template 3 has three ejector through holes at the seventh station. An elastic ejector block 15 is provided in the ejector through hole. The elastic ejector block 15 is provided with an avoidance notch to avoid the positioning groove on the workpiece.

[0030] The upper die base 1 is provided with a blanking punch 16 at the eighth station for punching and blanking three workpieces, and the lower die plate 3 is provided with a discharge hole 17 for the workpieces to fall; the upper die base 1 is provided with an upper scrap cutting block 18 at the ninth station for cooperating with the edge of the lower die plate 3 to cut the sheet metal.

[0031] The upper mold base 1 is equipped with positioning pins 19 at the second to sixth stations, which mate with the positioning holes on the upper side of the sheet metal. The lower mold plate 3 is equipped with a pair of guide blocks 20 on the sheet metal feeding side, corresponding to the two sides of the sheet metal respectively. The lower mold plate 3 is also equipped with several side positioning blocks 21 to restrict the position of the sheet metal sides.

[0032] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some examples of its application, and are not intended to limit the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements are all within the protection scope of the present invention.

Claims

1. A stamping blanking die for a ring-shaped part with a concave hole, comprising an upper die base (1) and a lower die base (2), the upper die base (1) and the lower die base (2) having nine processing stations, and a lower template (3) having a lower template (3); the upper die base (1) having a side punching punch (4) for positioning holes on the side of the stamping sheet at the first station, and the lower template (3) having a matching side punching die button (5); Its features are: The upper mold base (1) is provided with a punch module (6) for punching three workpiece positioning grooves at the second station, and the lower mold plate (3) is provided with a matching mold button module (7); the upper mold base (1) is provided with a central punch punch (8) for punching the central through holes of three workpieces at the third station, and the lower mold plate (3) is provided with a central punch mold button (9) that matches the punch punch; the lower mold plate (3) is provided with three sets of clearance recesses (10) that match the workpiece positioning grooves at the third station. The lower template (3) has three sets of clearance recesses (10) at the fourth station that cooperate with the positioning groove group on the workpiece; the upper mold base (1) has a middle upper forming block (11) for the preliminary punching intermediate workpiece at the fifth station; the lower template (3) has a corresponding middle lower forming block (12); the lower template (3) has three sets of clearance recesses (10) at the fifth station that cooperate with the positioning groove group on the workpiece; The upper die base (1) has a side forming upper punch (13) for initially punching two workpieces on the side at the sixth station, and the lower die plate (3) has a matching side forming lower punch (14); the lower die plate (3) has three sets of clearance recesses (10) that match the positioning grooves on the workpiece at the sixth station. The lower template (3) has three ejector holes at the seventh station, and an elastic ejector block (15) is provided in the ejector hole. The elastic ejector block (15) has a clearance notch to avoid the positioning groove of the workpiece. The upper mold base (1) has a blanking punch (16) for punching and blanking three workpieces at the eighth station. The lower template (3) has a discharge hole (17) for the punched workpieces to fall. The upper mold base (1) has an upper scrap cutter block (18) at the ninth station that cooperates with the edge of the lower template (3) to cut the sheet metal.

2. The stamping blanking die for a ring-shaped part with a concave hole as described in claim 1, characterized in that: The three punch modules (6) are arranged in a triangular shape.

3. The stamping blanking die for a ring-shaped part with a concave hole as described in claim 1, characterized in that: The upper mold base (1) is provided with positioning pins (19) that cooperate with the positioning holes on the upper side of the plate at the second to sixth work positions.

4. The stamping blanking die for a ring-shaped part with a concave hole as described in claim 1, characterized in that: The lower template (3) is provided with several side positioning blocks (21) that restrict the position of the side of the sheet material.

5. The stamping blanking die for a ring-shaped part with a concave hole as described in claim 1, characterized in that: The lower template (3) is provided with a pair of guide blocks (20) on the feeding side of the sheet metal, which correspond to the two sides of the sheet metal respectively.

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