Connecting plate stamping device

Abstract

The utility model belongs to the field of stamping, and provides a connecting plate stamping device which comprises an upper die and a lower die, the upper die is installed on the lower die in a sliding mode, the lower die comprises a lower die base, a base is arranged on the lower die base, a plurality of connecting columns penetrate into the lower die base upwards, the connecting columns penetrate into the base and are jointly provided with a carrying table, and the carrying table is connected with the upper die and the lower die. A plurality of sets of elastic pieces are arranged between the base and the carrying table, and hemming assemblies are arranged at the positions, located at the two ends of the carrying table, in the base. When the connecting plate is stamped and hemmed, firstly, the connecting plate is placed on the carrying table, the upper die moves downwards, firstly, the stamping head makes contact with the connecting plate, the stamping head continues to move downwards by a small distance, and the carrying table moves downwards under the pressing of the stamping head; the two ends of the stamping head are pressed on the connecting plate respectively and extrude the hemming wheel to move outwards by a small distance, the two ends of the connecting plate are bent upwards to form hems gradually under the dual action of the hemming wheel and the stamping head, and finally the stamping head is reset, and the connecting plate is taken down.

Description

Technical Field

[0001] The utility model belongs to the field of stamping, and in particular relates to a connecting plate stamping device. Background Art

[0002] In some processing processes, it is often necessary to stamp and bend the two ends of the connecting plate to form a curling edge. Stamping is a production technology that uses the power of conventional or special stamping equipment to directly subject the sheet metal to deformation force in the mold and deform it, thereby obtaining a certain shape, size and performance of product parts.

[0003] In the actual processing process, the connecting plate is first placed on the block with a curved surface. The plate is first bent into an arc shape under the stamping of the two blocks. Then the two blocks are moved together, and the side of the block and the other wall surface are used to produce a turning edge shape. Although the connecting plate can also be stamped, the folded edge connection will be torn during the stamping process, and it cannot be bent into the shape required by the product. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a connecting plate stamping device, aiming to solve the problem that when a connecting plate is stamped by an existing connecting plate stamping device, the folded edge connection of the connecting plate is torn and cannot be bent into the shape required by the product.

[0005] The utility model adopts the following technical solutions:

[0006] The stamping device includes an upper die and a lower die, the upper die is slidably mounted on the lower die, the lower die includes a lower die seat, a base is provided on the lower die seat, a plurality of connecting columns are inserted upward into the lower die seat, the connecting columns are inserted into the base and a carrier is provided together, a plurality of groups of elastic parts are provided between the base and the carrier, a curling assembly is provided at both ends of the carrier in the base, the curling assembly includes a fixed seat, a connecting seat is provided on the fixed seat, a pair of circular holes are opened in the connecting seat, a buffer spring and a short column are provided in the circular holes from the outside to the inside, a curling wheel is provided together on the two short columns, and the curling wheel is in conflict with the end face of the carrier, the upper die includes an upper die seat, and a punching head is provided on the upper die seat facing the carrier.

[0007] Furthermore, a pair of guide grooves are formed at both ends of the base, and guide columns are formed at both ends of the curling wheel, and the guide columns are located in the guide grooves on the same side.

[0008] Furthermore, the punching head includes a top plate, which is provided with an intermediate seat downward, and punching seats are slidably provided at both ends of the intermediate seat. The bottom outer side of the punching seat has a smooth transition, and a pair of connecting nuts are inserted downward into the top plate, and the bottom of the connecting nuts is connected to the punching seat.

[0009] Further, an arc-shaped support groove is formed inside the fixed seat.

[0010] Further, the elastic member includes a spring sleeve installed in the lower die base. A support spring is arranged inside the spring sleeve. The top of each support spring penetrates into the base and is connected to the carrier table.

[0011] Further, the side plates of the base are slightly higher than the carrier table.

[0012] Further, sliding rods and sliding sleeves are respectively arranged at the four corners of the upper die base and the lower die base. The sliding rods penetrate into the corresponding sliding sleeves.

[0013] The beneficial effects of the present utility model are as follows: When using this stamping device to stamp and curl the connecting plate, first place the connecting plate on the carrier table as required. Then, the power source drives the upper die to move downward. First, the stamping head contacts the connecting plate, and the stamping head continues to move downward a small distance. Under the downward pressure of the stamping head, the carrier table moves downward. At the same time, both ends of the stamping head press downward on the connecting plate and squeeze the curling wheels to move outward a small distance. Under the dual action of the curling wheels and the stamping head, both ends of the connecting plate bend upward and gradually form curls. Finally, the stamping head returns to its original position, and the connecting plate is taken off. Description of the Drawings

[0014] Figure 1 is a cross-sectional view of the connecting plate stamping device provided by the present utility model.

[0015] Figure 2 is an overall view of the connecting plate stamping device provided by the present utility model.

[0016] Figure 3 is a schematic installation view of the elastic member provided by the present utility model. Detailed Embodiments

[0017] In order to make the patent purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0018] In order to illustrate the technical solutions described in the present utility model, the following will be illustrated through specific embodiments.

[0019] For the convenience of description, only parts related to the embodiments of the present utility model are shown.

[0020] Combined with Figures 1 - 3As shown in the figure, the stamping device includes an upper die and a lower die. The upper die is slidably mounted on the lower die. The lower die includes a lower die base 1, on which there is a base 2. Multiple connecting columns 3 penetrate upward into the lower die base 1. The connecting columns 3 penetrate into the base 2 and jointly have a carrier 4. Between the base 2 and the carrier 4, there are multiple groups of elastic members 5. At both ends of the carrier 4 within the base 2, there are curling assemblies. The curling assembly includes a fixed seat 6, on which there is a connecting seat 7. A pair of circular holes 8 are opened in the connecting seat 7. From the outside to the inside of the circular holes 8, there are a buffer spring 9 and a short column 10 in sequence. A curling wheel 11 is jointly arranged on the two short columns 10, and the curling wheel 11 abuts against the end face of the carrier 4. The upper die includes an upper die base 12, and the upper die base 12 is provided with a stamping head 13 facing the carrier.

[0021] In the actual application process, the upper die moves vertically through a power source, and the power source can be a power cylinder. When using this stamping device to stamp and curl a connecting plate, first place the connecting plate on the carrier as required. Then the power source drives the upper die to move downward. First, the stamping head contacts the connecting plate, and the stamping head continues to move downward a small distance. Under the downward pressure of the stamping head, the carrier moves downward. At the same time, both ends of the stamping head press downward on the connecting plate and squeeze the curling wheel to move outward a small distance. Under the dual action of the curling wheel and the stamping head, both ends of the connecting plate bend upward and gradually form a curl. Finally, the stamping head resets, and the connecting plate is taken off.

[0022] In this stamping device, as Figure 2 , a pair of guide grooves 14 are opened at both ends of the base 2. Guide columns 15 are formed at both ends of the curling wheel 11, and the guide columns 15 are located in the guide grooves 14 on the same side.

[0023] During the process of the curling wheel moving outward, the buffer spring is gradually compressed. At the same time, the guide columns slide outward in the guide grooves, which can make the curling wheel more stable during the whole moving process and improve the stamping effect on the connecting plate. When the stamping head finishes stamping the connecting plate, the stamping head moves upward, and the carrier resets under the action of the elastic members. At the same time, the buffer spring restores its deformation, and the curling wheel resets and abuts against the end face of the carrier again.

[0024] In this structure, as Figure 1 、 Figure 3 , the elastic member 5 includes a spring sleeve 51 installed in the lower die base 1. A support spring 52 is arranged in the spring sleeve 51. The top of each support spring 52 penetrates into the base 2 and is connected to the carrier 4.

[0025] When the carrier table is pressed down by stamping, the carrier table moves downward, and at the same time, the supporting spring contracts. After the punch completes the stamping of the connecting plate, the stamping head resets, the supporting spring restores its deformation, and under its action, the carrier table also resets.

[0026] In addition, slide bars 16 and slide sleeves 17 are respectively provided at the four corners of the upper die base and the lower die base, and the slide bars 16 penetrate into the corresponding slide sleeves 17. When the power source drives the upper die to move downward toward the lower die, at this time, the slide bars slide within the slide sleeves.

[0027] In this structure, the side plate 18 of the base 2 is slightly higher than the carrier table 4, and limit blocks 19 are provided on the two connecting seats 7. The side plate and the limit blocks together form a limit interval. When stamping the connecting plate, the connecting plate can be placed in the limit interval as required, and the connecting plate is preliminarily limited through the limit interval, which is convenient for the stamping work of the connecting plate.

[0028] As a preferred structure, as Figure 1 , the stamping head includes a top plate 131, the top plate 131 is provided with an intermediate seat 132 downward, stamping seats 133 are slidably provided at both ends of the intermediate seat 132, the outer sides of the bottoms of the stamping seats 133 are smoothly transitioned, and a pair of connecting nuts 134 penetrate downward through the top plate 131, and the bottoms of the connecting nuts 134 are connected to the stamping seats 133. And an arc-shaped supporting groove 20 is formed inside the fixed seat 6.

[0029] After the connecting plate is placed in the limit interval, the stamping head is used to stamp it. Specifically: the stamping head moves toward the connecting plate. First, the stamping seat contacts the corresponding position of the connecting plate and presses down on the connecting plate. The stamping head continues to move downward, and the intermediate seat also contacts the connecting plate. At this time, the entire stamping head presses down on the connecting plate. When the stamping head moves downward again, the two stamping seats simultaneously press down on the corresponding positions at both ends of the connecting plate, the curling wheels move outward a small distance, and at the same time, the carrier table moves downward. During this process, under the action of the stamping seats and the curling wheels, the two ends of the connecting plate are gradually bent upward. When the stamping seat is located in the corresponding supporting groove, curls are formed at both ends of the connecting plate.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the invention shall be included in the protection scope of the present invention.

Claims

1. A connecting plate stamping device, characterized in that: The stamping device includes an upper die and a lower die. The upper die is slidably mounted on the lower die. The lower die includes a lower die base, and a base is provided on the lower die base. A plurality of connecting columns penetrate upward into the lower die base. The connecting columns penetrate into the base and jointly have a carrier table. A plurality of groups of elastic members are provided between the base and the carrier table. At both ends of the carrier table in the base, there are hemming assemblies. The hemming assembly includes a fixed seat, a connecting seat is provided on the fixed seat. A pair of round holes are formed in the connecting seat. A buffer spring and a short column are sequentially provided in the round holes from outside to inside. A hemming wheel is jointly provided on the two short columns, and the hemming wheel abuts against the end face of the carrier table. The upper die includes an upper die base, and a stamping head is provided on the upper die base facing the carrier table.

2. The stamping device for a connecting plate according to claim 1, characterized in that: A pair of guide grooves are formed at both ends of the base. Guide columns are formed at both ends of the hemming wheel, and the guide columns are located in the guide grooves on the same side.

3. The stamping device for a connecting plate according to claim 2, wherein: The stamping head includes a top plate. A middle seat is provided downward on the top plate. Stamping seats are slidably provided at both ends of the middle seat. The outer sides of the bottoms of the stamping seats are smoothly transitioned. A pair of connecting nuts penetrate downward into the top plate, and the bottoms of the connecting nuts are connected to the stamping seats.

4. The stamping device for a connecting plate according to claim 3, wherein: An arc-shaped support groove is formed inside the fixed seat.

5. The stamping device for a connecting plate according to claim 4, characterized in that: The elastic member includes a spring sleeve installed in the lower die base. A support spring is provided in the spring sleeve. The top of each support spring penetrates into the base and is connected to the carrier table.

6. The stamping device for a connecting plate according to claim 5, characterized in that: The side plates of the base are slightly higher than the carrier table.

7. The stamping device for a connecting plate according to claim 6, wherein: Slide rods and slide sleeves are respectively provided at the four corners of the upper die base and the lower die base. The slide rods penetrate into the corresponding slide sleeves.

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