Hemming stamping die for plate with groove

Abstract

The utility model relates to a curled edge stamping die for a grooved plate, the plate is in a groove shape, and the die comprises an upper die plate, a lower die plate and a lower base plate. The upper die plate is provided with a guide hole matched with the outer contour of a plate, and the plate abuts against the interior of the guide hole. The lower die plate comprises a lower die plate body, bending blocks and a positioning block, the bending blocks are fixed to all the side faces of the lower die plate body, and arc-shaped bending parts protruding outwards are arranged between the outer sides and the upper end faces of the bending blocks; the positioning block is fixed to the upper end face of the bending block, the lower base plate is telescopically arranged on the side, close to the upper die plate, of the lower die plate body, and the plate covers the lower base plate in an inverted mode. Compared with the prior art, the device has the advantages of being high in plate positioning and plate rolling positioning accuracy, convenient to demould, high in working efficiency and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch mould field especially a kind of flanging punch mould of grooved plate. BACKGROUND

[0002] Punching is at normal temperature, relies on press and die to plate, strip, pipe and section bar etc. Outside force is exerted, so that it generates plastic deformation or separates, to obtain the forming processing method of the stamping part of required shape and size. According to the shape requirement of product, it is often necessary to carry out flanging process treatment to product in the process of stamping, and flanging is a kind of processing mode to plate, circular container or its end.

[0003] Under prior art, staff often uses punch mould to carry out flanging stamping to hardware plate when processing hardware plate, but the flanging punch mould of plate of prior art makes the flanging of plate be sleeved on the surface of lower die block when completing flanging, and it is inconvenient to take down.

[0004] It is not easy to realize that staff takes down plate after processing quickly, and it is time-consuming and laborious, indirectly prolongs the processing time of a group of plates by staff, greatly reduces the work efficiency of staff, and the positioning and fixing of product are unstable in the process of flanging, and the flanging position is prone to deviation or flanging deformation. UTILITY MODEL CONTENT

[0005] The utility model aims at overcoming the defects that the plate after flanging processing is sleeved on lower die plate, is inconvenient to take down and leads to low flanging efficiency of prior art and provides a kind of flanging punch mould of grooved plate.

[0006] The purpose of the utility model can be realized by the following technical solutions.

[0007] A kind of flanging punch mould of grooved plate, the plate is groove type, the die includes upper die plate, lower die plate and lower backing plate;

[0008] The upper die plate is equipped with the guide hole matched with the outer contour of plate, and the plate is abutted in the guide hole;The lower die plate includes lower die plate body, bending block and positioning block, each side surface of the lower die plate body is fixed with bending block, and the outer side and upper end face of the bending block are equipped with the arc bending part protruding outward;The positioning block is fixed on the upper end face of bending block, the lower backing plate is telescopically arranged on the side of lower die plate body close to upper die plate, and the plate is inverted cover and is arranged on the lower backing plate.

[0009] Preferably, the bottom of the plate is equipped with recess, the die further includes upper backing plate, the upper backing plate is located in the guide hole, and the side of the upper backing plate close to the lower backing plate is equipped with the positioning groove matched with the bottom of recess.

[0010] Preferably, the lower base plate is a T-shaped structure, comprising a first base plate and a second base plate connected to each other, the first base plate is connected to the lower die plate body on the side away from the second base plate, and the side edge of the second base plate is provided with a limiting groove matched with the positioning block.

[0011] Preferably, a spring is arranged between the lower base plate and the lower die plate body, one end of the spring is connected to the lower die plate body, and the other end of the spring is connected to the first base plate.

[0012] Preferably, a guide column is arranged on the lower die plate body, a guide hole matched with the guide column is arranged on the lower base plate, and the guide column passes through the guide hole.

[0013] Preferably, a clamping groove is arranged on the upper end surface of the bending block, an arc-shaped mounting groove is arranged on the positioning block, the bending block is located in the clamping groove and is fixed on the bending block through a bolt, and the bolt abuts against the arc-shaped mounting groove.

[0014] Preferably, a positioning rod is arranged in the clamping groove, and a positioning hole matched with the positioning rod is arranged on the positioning block, and the positioning rod passes through the positioning hole.

[0015] Preferably, the upper die plate comprises a fixed plate and a limiting plate, a fixed groove is arranged on the side of the fixed plate close to the lower die plate, and the limiting plate is mounted in the fixed groove.

[0016] Preferably, the fixed plate is a frame-shaped spliced structure, comprising a plurality of spliced plates, T-shaped clamping grooves are arranged at both ends of each spliced plate, H-shaped clamping blocks are arranged between adjacent spliced plates, and the H-shaped clamping blocks are clamped in the T-shaped clamping grooves of the adjacent spliced plates.

[0017] Preferably, the mold further comprises a limiting ejector pin and a lower die seat, the limiting ejector pin is elastically mounted on the lower die seat, and the upper end of the limiting ejector pin movably contacts the limiting plate.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] (1) The scheme sets the slot-shaped plate material with the corner inwardly bent by 90 degrees upside down on the lower base plate, drives the upper die plate to move downward, clamps the plate material in the guide hole and drives the plate material to move downward, cooperates the positioning block to make the corner of the plate material contact the arc-shaped bending part, along with the inclination angle of the arc-shaped bending part becoming larger, the corner of the plate material is bent from 90 degrees to 180 degrees, the plate rolling is completed, then the upper die plate resets, and the telescopic lower base plate pushes the plate material upward and out.

[0020] The plate is supported by the lower bolster plate, the positioning hole on the upper die plate positions the outer side of the plate, and the positioning block positions the inner side of the bent corner of the plate, so that the bent corner gradually increases after the arc-shaped bending part, and the plate is curled.

[0021] (2) Considering that the bottom of the groove-shaped plate is provided with a groove, the shape of the groove needs to be ensured unchanged while the plate is curled, so the positioning groove matched with the shape of the groove is arranged on the side of the upper bolster plate close to the lower bolster plate, the plate is abutted on the upper bolster plate by the lower bolster plate, and the positioning groove is used for assisting the positioning of the plate, so that the accuracy of the curled position of the plate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 An explosion structure schematic view of the main plate of the stamping die is provided in the utility model.

[0023] Figure 2 An enlarged schematic view of the plate bending is provided in the utility model.

[0024] Figure 3 A structure schematic view of the upper die plate is provided in the utility model.

[0025] Figure 4 A structure schematic view of the plate is provided in the utility model.

[0026] In the drawing: 1, plate, 2, upper bolster plate, 3, upper die plate, 4, lower die plate, 5, lower bolster plate; 11, groove, 21, positioning groove, 31, guide hole, 32, fixed plate, 33, limiting plate, 41, lower die plate body, 42, bending block, 43, positioning block, 44, arc-shaped bending part, 51, first bolster plate, 52, second bolster plate, 53, limiting groove. DETAILED DESCRIPTION

[0027] 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 clearly and completely described 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.

[0028] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based upon the embodiments of the application, all other embodiments that would be obtained by one of ordinary skill in the art without having creative labor are within the scope of the application.

[0029] It should be noted that similar reference numbers and letters refer to similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0030] In the description of the application, it should be noted 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 product of the application is used, and are merely for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0031] It should be noted that the terms "first", "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0032] 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. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0033] Embodiment 1

[0034] As shown in Figure 1 , Figure 2 and Figure 4 , the present embodiment provides a hemming stamping die for a slotted plate, the plate is of a slotted type, and the die comprises an upper die plate 3, a lower die plate 4 and a lower cushion plate 5;

[0035] The upper die plate 3 is provided with a guide hole 31 matched with the outer contour of the plate 1, and the plate 1 abuts against the guide hole 31; the lower die plate 4 comprises a lower die plate body 41, a bending block 42 and a positioning block 43, the bending block 42 is fixed to each side surface of the lower die plate body 41, and an arc bending part 44 protruding outward is arranged between the outer side and the upper end surface of the bending block 42; the positioning block 43 is fixed to the upper end surface of the bending block 42, and the lower cushion plate 5 is telescopically arranged on the side of the lower die plate body 41 close to the upper die plate 3, and the plate 1 is inverted and covered on the lower cushion plate 5.

[0036] Working principle: the slot-shaped plate with the corners folded inward by 90 degrees is inverted and covered on the lower cushion plate 5, the upper die plate 3 is driven to move downward, the plate 1 is clamped in the guide hole 31 and driven to move downward, the corner of the plate 1 is contacted with the arc bending part 44 in cooperation with the positioning block 42, as the inclination angle of the arc bending part 44 becomes larger, the corner of the plate 1 is folded from 90 degrees to 180 degrees, and the plate rolling of the plate 1 is completed, then the upper die plate 3 is reset, and the plate 1 is pushed upward by the telescopic lower cushion plate 5.

[0037] The plate is supported by the lower cushion plate 5, the outer side of the plate is positioned by the positioning hole 31 on the upper die plate 3, and the inner side of the folded corner of the plate is positioned in cooperation with the positioning block 43, so that the folding angle of the corner is gradually increased after passing through the arc bending part 44, and the plate edge rolling is completed. By limiting the inner and outer sides of the slot-shaped plate, the contact between the folded corner and the arc bending part 44 is ensured, the folding position and the folding accuracy are ensured, and the telescopic lower cushion plate 5 can lift the plate 1 after edge rolling, so as to facilitate demolding and improve the working efficiency of the plate edge rolling.

[0038] In the preferred embodiment, the bottom of the plate 1 is provided with a groove 11, and the mold further comprises an upper cushion plate 2, the upper cushion plate 2 is located in the guide hole 31, and the side of the upper cushion plate 2 close to the lower cushion plate 5 is provided with a positioning groove 21 matched with the bottom of the groove 11.

[0039] Considering that the bottom of the slot-shaped plate is provided with the groove 11, it is necessary to ensure that the plate is rolled while ensuring that the shape of the groove is unchanged, so the positioning groove 21 matched with the shape of the groove is arranged on the side of the upper cushion plate 2 close to the lower cushion plate 5, the plate is abutted against the upper cushion plate 2 by the lower cushion plate 5, and the positioning groove 21 is used to assist the positioning of the plate, so as to improve the accuracy of the plate edge rolling position.

[0040] Specifically, the lower cushion plate 5 is a T-shaped structure comprising a first cushion plate 51 and a second cushion plate 52 connected to each other, the side of the first cushion plate 51 away from the second cushion plate 52 is connected to the lower die plate body 41, and the side edge of the second cushion plate 52 is provided with a limiting groove 53 matched with the positioning block 43.

[0041] The first gusset plate 51 and the lower die plate body 41 are provided with a spring, one end of the spring is connected with the lower die plate body 41, and the other end is connected with the first gusset plate 51. The lower die plate body 41 is provided with a guide column, and the lower gusset plate 51 is provided with a guide hole matched with the guide column, and the guide column passes through the guide hole.

[0042] By arranging the spring between the first gusset plate 51 and the lower die plate body 41, the recess 11 of the plate can be abutted in the positioning groove 21 by the lower gusset plate before the plate bending edge contacts the arc-shaped bending part during the driving of the upper die plate structure moving downward, thereby ensuring the accuracy of the subsequent edge curling position and improving the edge curling quality. The guide column is arranged in the lower gusset plate, and the guide column can ensure the vertical movement accuracy of the lower gusset plate. After the edge curling is completed and the upper die plate structure is reset, the lower gusset plate can be pushed out by the plate structure under the action of the spring, which is convenient for the workers to take the material and improves the work efficiency.

[0043] Further, the bending block 42 is provided with a clamping groove on the upper end surface, the positioning block 43 is provided with an arc-shaped mounting groove, the bending block 42 is located in the clamping groove and is fixed on the bending block 42 by bolts, and the bolts abut in the arc-shaped mounting groove. The clamping groove is provided with a positioning rod, and the positioning block 43 is provided with a positioning hole matched with the positioning rod, and the positioning rod passes through the positioning hole.

[0044] By arranging the positioning block 43 in the clamping groove and arranging the positioning rod to pass through the positioning hole on the positioning block, the positioning block 43 is installed in the clamping groove of the bending block 42, which ensures the accuracy of the relative position and the reliability of the fixation.

[0045] Specifically, as shown in Figure 3 The upper die plate 3 includes a fixed plate 32 and a limiting plate 33, and the fixed plate 32 is provided with a fixed groove on the side close to the lower die plate 4, and the limiting plate 33 is installed in the fixed groove.

[0046] The fixed plate 32 is a frame type splicing structure, which includes a plurality of splicing plates, and the two ends of each splicing plate are provided with a T-shaped clamping groove, and an H-shaped clamping block is arranged between adjacent splicing plates, and the H-shaped clamping block is clamped in the T-shaped clamping groove of the adjacent splicing plate. The frame type fixed plate with the splicing structure is convenient to install and replace, reduces the cost, and the H-shaped clamping block is used to connect the adjacent splicing segments, thereby ensuring the accuracy of the guide hole 31 enclosed by the limiting plate 33.

[0047] Further, the mold further includes a limiting ejector pin and a lower die seat, the limiting ejector pin is elastically installed on the lower die seat, and the upper end of the limiting ejector pin movably contacts the limiting plate 33.

[0048] The elastic limiting ejector pin limits the movement distance of the upper die plate in the vertical direction, which can ensure that the edge curling of the plate 1 meets the requirements, avoids excessive movement of the upper die plate, causes damage to the plate, and ensures the consistency of the plate edge curling.

[0049] The preferred embodiments of the present application are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative work according to the concept of the present application. Therefore, any technical solutions obtained by logical analysis, reasoning or limited experiments on the basis of the existing technology according to the concept of the present application shall be within the protection scope defined by the claims.

Claims

1. A stamping die for edge rolling of a grooved sheet metal, wherein the sheet metal is grooved, characterized in that, The mold includes an upper template (3), a lower template (4), and a lower pad (5); The upper template (3) is provided with a guide hole (31) that matches the outer contour of the plate (1), and the plate (1) abuts against the guide hole (31); the lower template (4) includes a lower template body (41), a bending block (42) and a positioning block (43), and each side of the lower template body (41) is fixed with a bending block (42), and an outwardly protruding arc-shaped bending part (44) is provided between the outer side and the upper end face of the bending block (42); the positioning block (43) is fixed on the upper end face of the bending block (42), and the lower pad (5) is telescopically arranged on the side of the lower template body (41) close to the upper template (3), and the plate (1) is inverted and covered on the lower pad (5).

2. The edge-rolling stamping die for grooved sheet metal according to claim 1, characterized in that, The bottom of the plate (1) is provided with a groove (11), and the mold also includes an upper pad (2). The upper pad (2) is located in the guide hole (31). The side of the upper pad (2) near the lower pad (5) is provided with a positioning groove (21) that matches the bottom of the groove (11).

3. The edge-rolling stamping die for grooved sheet metal according to claim 1, characterized in that, The lower pad (5) is a T-shaped structure, including a first pad (51) and a second pad (52) connected to each other. The side of the first pad (51) away from the second pad (52) is connected to the lower template body (41). The side of the second pad (52) is provided with a limiting groove (53) that cooperates with the positioning block (43).

4. The edge-rolling stamping die for grooved sheet metal according to claim 3, characterized in that, A spring is provided between the first pad (51) and the lower template body (41), with one end of the spring connected to the lower template body (41) and the other end connected to the first pad (51).

5. The edge-rolling stamping die for grooved sheet metal according to claim 3, characterized in that, The lower template body (41) is provided with guide posts, and the first pad (51) is provided with guide holes that cooperate with the guide posts, and the guide posts pass through the guide holes.

6. The edge-rolling stamping die for grooved sheet metal according to claim 1, characterized in that, The upper end face of the bending block (42) is provided with a slot, and the positioning block (43) is provided with an arc-shaped mounting groove. The bending block (42) is located in the slot and is fixed to the bending block (42) by bolts. The bolts abut against the arc-shaped mounting groove.

7. The edge-rolling stamping die for grooved sheet metal according to claim 6, characterized in that, The slot is provided with a positioning rod, and the positioning block (43) is provided with a positioning hole that cooperates with the positioning rod, and the positioning rod passes through the positioning hole.

8. The edge-rolling stamping die for grooved sheet metal according to claim 1, characterized in that, The upper template (3) includes a fixing plate (32) and a limiting plate (33). The fixing plate (32) has a fixing groove on the side near the lower template (4), and the limiting plate (33) is installed in the fixing groove.

9. The edge-rolling stamping die for a grooved sheet metal according to claim 8, characterized in that, The fixing plate (32) is a frame-type splicing structure, including multiple splicing plates. Each splicing plate has a T-shaped slot at both ends and an H-shaped block between adjacent splicing plates. The H-shaped block is engaged in the T-shaped slot of the adjacent splicing plate.

10. A stamping die for edge-rolling of grooved sheet metal according to claim 8, characterized in that, The mold also includes a limiting ejector pin and a lower mold base. The limiting ejector pin is elastically mounted on the lower mold base, and the upper end of the limiting ejector pin movably contacts the limiting plate (33).

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