Stamping edge continuous stamping die structure

Abstract

The utility model relates to the technical field of stamping dies, in particular to a dead-pressing edge continuous stamping die structure which comprises an upper die (100) and a lower die (200), and at least one forming punch and at least one slotting tool are sequentially arranged on the upper die (100) in the feeding direction. The lower die (200) is provided with at least one forming groove matched with the forming punch and at least one side shaping mechanism matched with the slotting tool, and the lower die (200) is provided with a plurality of floating mechanisms (212). The forming punch and the slotting tool are sequentially arranged on the upper die body in the feeding direction, the forming groove matched with the forming punch, the side shaping mechanism matched with the slotting tool and the floating lifting mechanisms are arranged on the lower die body, the two working procedures of V-shaped pre-folding and dead edge pressing can be completed in one punching stroke in sequence, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a structure of a dead-edge continuous stamping die. Background Art

[0002] In the prior art, the process of pressing the dead edge of a sheet metal part is to first bend the sheet metal part by 90 degrees, then bend the sheet metal part by 45 degrees, and finally bend and flatten the sheet metal part. This process has problems such as many burrs.

[0003] To solve the above problems, a Chinese utility model patent with the publication number CN212168730U discloses a dead-edge bending die, which includes an upper die, a movable lower die, and a lower die fixing seat. The upper die is installed on the upper die clamp of a bending machine, and the bending angle of the upper die is an acute angle. The movable lower die is installed on the lower die fixing seat. The movable lower die is provided with a groove, and the top of the groove is provided with a thread. The lower die fixing seat is also provided with a groove. The bottom of the movable lower die is embedded in the groove of the lower die fixing seat. A return spring is placed in the groove of the movable lower die. One end of the return spring abuts against the top of the groove of the movable lower die, and the other end abuts against the bottom of the groove of the lower die fixing seat. The other end of the groove of the lower die fixing seat is provided with a fixing screw, and the fixing screw is screwed onto the thread of the movable lower die. When in use, the first process is to press an acute angle on the workpiece through the cooperation of the bending angle of the upper die and the bending groove of the movable lower die, and the second process is to flatten the acute angle of the workpiece through the cooperation of two inclined sides. Obviously, there are problems such as manual operation required, two processes to be completed successively, and low efficiency.

[0004] Therefore, the prior art needs to be improved and enhanced. Content of the Utility Model

[0005] Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide a structure of a dead-edge continuous stamping die that can successively complete two processes in one stamping stroke and has high efficiency.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A structure of a dead-edge continuous stamping die includes an upper die and a lower die. Along the feeding direction on the upper die, at least one forming punch and at least one inserting knife are sequentially arranged. On the lower die, at least one forming groove cooperating with the forming punch and at least one side shaping mechanism cooperating with the inserting knife are arranged. A plurality of lifting mechanisms are arranged on the lower die.

[0008] As a further scheme of the utility model, a plurality of outer guide columns are arranged on the upper die, and a plurality of outer guide sleeves cooperating with the outer guide column group are arranged on the lower die.

[0009] As a further solution of the utility model, a plurality of inner guide columns are arranged on the upper die, and a plurality of inner guide sleeves matched with the inner guide columns are arranged on the lower die.

[0010] As a further solution of the utility model, the upper die includes an upper die base, an upper backing plate, an upper clamping plate, a stop plate and a stripper plate which are arranged in sequence from top to bottom. A plurality of nitrogen springs are arranged between the upper die base and the stop plate.

[0011] As a further solution of the utility model, the lower die includes a lower template, a lower backing plate, a lower die base and a lower supporting plate which are arranged in sequence from top to bottom. A plurality of lower feet are arranged between the lower die base and the lower supporting plate.

[0012] As a further solution of the utility model, at least one forming groove and a through hole are arranged on the lower template, and a lower die side shaping block is arranged in the through hole.

[0013] As a further solution of the utility model, the side shaping mechanism includes a side push shaping block which approaches or moves away from the lower die side shaping block under the action of the inserting knife, and a return spring arranged between the side push shaping block and the lower die side shaping block.

[0014] As a further solution of the utility model, a side push fixing block is arranged in the through hole, and the side push fixing block is provided with a slide way for the side push shaping block to approach or move away from the lower die side shaping block.

[0015] As a further solution of the utility model, a stop block is arranged between the side push fixing block and the inner wall of the through hole.

[0016] As a further solution of the utility model, the lifting mechanism includes a spring arranged on the lower die and a lifting pin connected with the spring.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] Due to the adoption of the above structural design, that is, a forming punch and an inserting knife are arranged on the upper die in sequence along the feeding direction, a forming groove matched with the forming punch, a side shaping mechanism matched with the inserting knife and a plurality of lifting mechanisms are arranged on the lower die, the two processes of V-shaped pre-folding and pressing the dead edge can be successively completed in one stamping stroke, greatly improving the production efficiency. Description of the Drawings

[0019] Att Figure 1 is a schematic diagram of the open die state of the embodiment of the utility model;

[0020] Att Figure 2 is a schematic diagram of the closed die state of the embodiment of the utility model.

[0021] The reference numerals in the figure are respectively:

[0022] 100 - Upper die, 200 - Lower die;

[0023] 101 - Upper die base, 102 - Upper backing plate, 103 - Upper clamping plate, 104 - Stop plate, 105 - Stripping plate, 106 - First forming punch, 107 - Second forming punch, 108 - First inserting knife, 109 - Second inserting knife, 110 - Outer guide pillar, 111 - Inner guide pillar, 112 - Nitrogen spring;

[0024] 201 - Lower template, 202 - Lower backing plate, 203 - Lower die base, 204 - Lower supporting plate, 205 - Lower pad feet, 206 - First forming groove, 207 - Second forming groove, 208 - First side sizing mechanism, 209 - Second side sizing mechanism, 210 - Outer guide sleeve, 211 - Inner guide sleeve, 212 - Lifting mechanism;

[0025] 2011 - Through hole, 2012 - Lower die side sizing block;

[0026] 2081 - Side pushing sizing block, 2082 - Return spring, 2083 - Side pushing fixed block, 2084 - Rest block;

[0027] 2121 - Spring, 2122 - Lifting pin. Detailed implementation mode

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] For the convenience of understanding this embodiment, a structure of a hemming continuous stamping die disclosed in the embodiments of the present utility model will be introduced in detail first. Embodiment

[0030] Such as Figure 1 And Figure 2As shown in the figure, a structure of a continuous stamping die for pressing dead edges in the present application includes an upper die 100 and a lower die 200. Specifically, the upper die 100 includes an upper die base 101, an upper backing plate 102, an upper clamping plate 103, a stop plate 104, and a stripper plate 105 arranged in sequence from top to bottom. A plurality of nitrogen springs 112 are arranged between the upper die base 101 and the stop plate 104. Among them, the upper die base, the upper backing plate, and the upper clamping plate are fixed together by a plurality of bolts, and the stop plate and the stripper plate are fixed together by a plurality of bolts; the lower die 200 includes a lower template 201, a lower backing plate 202, a lower die base 203, and a lower support plate 204 arranged in sequence from top to bottom. A plurality of lower feet 205 are arranged between the lower die base 203 and the lower support plate 204. Among them, the lower template and the lower backing plate are fixed together by a plurality of bolts.

[0031] On the upper die 100, a first forming punch 106, a second forming punch 107, a first inserting knife 108, and a second inserting knife 109 are arranged in sequence along the feeding direction. The first forming punch 106 and the second forming punch 107 are arranged oppositely, and the first inserting knife 108 and the second inserting knife 109 are arranged oppositely. On the lower template 201, there is a first forming groove 206 that cooperates with the first forming punch 106, a second forming groove 207 that cooperates with the second forming punch 107, a first side shaping mechanism 208 that cooperates with the first inserting knife 108, and a second side shaping mechanism 209 that cooperates with the second inserting knife 109. A plurality of lifting mechanisms 212 are arranged on the lower die 200. Among them, the first side shaping mechanism 208 and the second side shaping mechanism 209 have the same structure. The forming punches and the inserting knives are arranged in pairs to further improve production efficiency.

[0032] Specifically, a through hole 2011 is arranged on the lower template 201. A lower die side shaping block 2012 is arranged in the through hole 2011. The first side shaping mechanism 208 and the second side shaping mechanism 209 are respectively arranged on both sides of the lower die side shaping block 2012. The first side shaping mechanism 208 includes a side pushing shaping block 2081 that approaches or moves away from the lower die side shaping block 2012 under the action of the first inserting knife 108 and a return spring 2082 arranged between the side pushing shaping block 2081 and the lower die side shaping block 2012. A side pushing fixing block 2083 is arranged in the through hole 2011. The side pushing fixing block 2083 is provided with a slideway (not shown in the figure) for the side pushing shaping block 2083 to approach or move away from the lower die side shaping block 2012. A stop block 2084 is arranged between the side pushing fixing block 2083 and the inner wall of the through hole 2011.

[0033] Specifically, the lifting mechanism 212 includes a spring 2121 arranged on the lower die and a lifting pin 2122 connected to the spring 2121. The spring 2121 is fixed to the lower die base 203 by a check screw.

[0034] When this application is working, the strip is fed into this application by a feeder. The upper die 100 moves downward, driving the strip downward. The lifting mechanism 212 is compressed. The first forming punch 106 and the second forming punch 107 cooperate with the first forming groove 206 and the second forming groove 207 respectively to complete the V-shaped pre-bending at the corresponding strip position. The first inserting knife 108 and the second inserting knife 109 drive the corresponding side-pushing and shaping blocks to move towards each other respectively, and the return spring is compressed to perform the dead-edge pressing operation on the strip completed in the previous process. The upper die 100 moves upward, and the strip is lifted under the action of the lifting mechanism 212. The side-pushing and shaping blocks are reset under the action of the return spring. The feeder moves the strip to two stations. The upper die 100 moves downward again. The first forming punch 106 and the second forming punch 107 cooperate with the first forming groove 206 and the second forming groove 207 respectively to perform the V-shaped pre-bending operation on the strip newly entered into this application. At the same time, the first inserting knife 108 and the second inserting knife 109 cooperate with the first side shaping mechanism 208 and the second side shaping mechanism 209 respectively to perform the dead-edge pressing operation on the strip completed in the previous process, and this operation is repeated.

[0035] Specifically, a number of outer guide pillars 110 are provided on the upper die 100, and these outer guide pillars are fixed on the upper die base 100. A number of outer guide sleeves 210 that cooperate with the outer guide pillars 110 are provided on the lower die 20. A number of inner guide pillars 111 are provided on the upper die 100, and these inner guide pillars 111 are fixed on the upper clamping plate 203. A number of inner guide sleeves 211 that cooperate with the inner guide pillars 111 are provided on the lower die 200, which is used to ensure the accuracy of movement, avoid deviations during the movement process, and thus improve the product quality and production efficiency.

[0036] In summary, through the above structural design, the present utility model solves the deficiencies in the prior art and has the characteristics of reasonable structure, high production efficiency, and low cost.

[0037] In addition, in the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0038] In the description of the present utility model, 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. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0039] Finally, it should be noted that the above embodiments are only specific embodiments of the present utility model, used to illustrate the technical solutions of the present utility model, rather than limiting it. The protection scope of the present utility model is not limited thereto. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art within the technical scope disclosed by the present utility model can still modify the technical solutions recorded in the foregoing embodiments, or can easily conceive of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model, and should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A die structure for continuous stamping of a die for pressing a dead edge, comprising an upper die (100) and a lower die (200), characterized in that: At least one forming punch and at least one insert knife are arranged in sequence on the upper die (100) along the feeding direction, at least one forming groove cooperating with the forming punch and at least one side shaping mechanism cooperating with the insert knife are arranged on the lower die (200), and a plurality of floating lifting mechanisms (212) are arranged on the lower die (200).

2. The die structure for continuous stamping of dead edges according to claim 1, characterized in that: The upper die (100) is provided with a plurality of outer guide pillars (110), and the lower die (200) is provided with a plurality of outer guide sleeves (210) matched with the outer guide pillars (110).

3. The die structure for continuous stamping of dead edges according to claim 2, characterized in that: The upper die (100) is provided with a plurality of inner guide pillars (111), and the lower die (200) is provided with a plurality of inner guide sleeves (211) matched with the inner guide pillars (111).

4. The die structure for continuous stamping of dead edges according to claim 3, characterized in that: The upper die comprises an upper die base (101), an upper pad (102), an upper clamping plate (103), a stop plate (104) and a stripping plate (105) which are arranged in sequence from top to bottom, and a plurality of nitrogen springs (112) are arranged between the upper die base (101) and the stop plate (104).

5. The die structure for continuous stamping of dead edges according to claim 4, characterized in that: The lower die (200) comprises a lower die plate (201), a lower pad (202), a lower die base (203) and a lower support plate (204) which are arranged in sequence from top to bottom, and a plurality of lower pads (205) are arranged between the lower die base (203) and the lower support plate (204).

6. The die structure for continuous stamping of dead edges according to claim 5, characterized in that: At least one molding groove and a through hole (2011) are provided on the lower mold plate (201), and a lower mold side shaping block (2012) is provided in the through hole (2011).

7. The die structure for continuous stamping of dead edges according to claim 6, characterized in that: The side shaping mechanism comprises a side pushing shaping block which approaches or moves away from the lower die side shaping block under the action of the inserting knife and a return spring arranged between the side pushing shaping block and the lower die side shaping block.

8. The die structure for continuous stamping of dead edges according to claim 7, characterized in that: A side push fixing block is arranged in the through hole (2011), and the side push fixing block is provided with a slideway for the side push shaping block to approach or move away from the lower mold side shaping block.

9. The die structure for continuous stamping of dead edges according to claim 8, characterized in that: A supporting block is arranged between the side-pushing fixing block and the inner wall of the through hole (2011).

10. The die structure for continuous stamping of dead edges according to claim 9, characterized in that: The floating mechanism (212) comprises a spring (2021) arranged on the lower mold (200) and a floating pin (2022) connected to the spring (2021).

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