CN222094504U - Self-returning dotting die device - Google Patents

Abstract

The utility model discloses a self-retracting dotting die device, including an inner molding mechanism and an outer molding mechanism matched with the inner molding mechanism, the inner molding mechanism includes an inner molding block, the inner molding block is shaft-shaped and the outer diameter is the same as the inner diameter of the product, the inner molding block is provided with an inner groove matched with the dotting position of the product, the outer molding mechanism includes an outer punch matched with the inner molding block, the outer punch is provided with a convex block matched with the dotting position of the product, the outer wall of the inner molding block is axially provided with a retreating slide groove for easy retreat, and the inner molding mechanism also includes a driving component for driving the inner molding block to rotate. Through the above method, the utility model has an ingenious structure and can punch out the dots required for the side wall of the product at one time. The inner molding block rotates with the driving component and can avoid the hook-shaped inner protrusion to facilitate product demoulding.

Description

Self-returning dotting die device

Technical Field

The utility model relates to the technical field of stamping dies, in particular to a self-withdrawal dotting die device.

Background

The metal stamping is a common method for processing metal products, along with the diversification of customer demands, the design of a die is also suitable for various product demands, almost all workpieces with complex structures are manufactured by continuous stamping, the metal stamping is generally performed by taking a metal material belt with a certain width as a processing raw material, and then the final product structure is obtained by cutting, embossing, bending, riveting and other methods.

The product shown in fig. 1 needs to be dotted around the side wall of the product, the dotted part protrudes 01 towards the inside of the product and is in a barb shape, the inner forming block needs to be matched with the outer forming block to form during the dotted, the inner forming block needs to extend into the product, the inverted hook-shaped dotted position can influence the withdrawal of the inner forming block, the usually adopted withdrawal mode is to select the inner forming block lower than the inner diameter of the product, the inner forming block is close to the inner wall of the product during the dotted, the inner forming block is retreated away from the inner wall of the product during the withdrawal, the inner forming block is sequentially moved to the inner wall of the product according to the dotted quantity on the product, the dotted action around the product needs to be completed for many times, and in addition, the inner forming block structure is not stable enough and is easy to be deformed by the stamping of the outer forming block due to the fact that the inner forming block extends into the slender product.

Based on the above drawbacks and deficiencies, there is a need for improvements in the art to design a self-retracting dotting die apparatus.

Disclosure of utility model

The utility model mainly solves the technical problem of providing the self-withdrawal dotting die device which is ingenious in structure, can punch out the dotting required by the side wall of a product at one time, and the inner forming block is driven to rotate along with the driving assembly, so that the inverted hook-shaped inner bulge can be avoided, and the product can be demoulded conveniently.

In order to solve the technical problem, the technical scheme is that the self-withdrawal dotting die device comprises an inner forming mechanism and an outer forming mechanism matched with the inner forming mechanism, wherein the inner forming mechanism comprises an inner forming block, the inner forming block is in a shaft shape, the outer diameter of the inner forming block is the same as the inner diameter of a product, an inner groove matched with the dotting position of the product is formed in the inner forming block, the outer forming mechanism comprises an outer punch matched with the inner forming block, the outer punch is provided with a lug matched with the dotting position of the product, a withdrawal chute which is convenient for withdrawal is axially arranged on the outer wall of the inner forming block, and the inner forming mechanism further comprises a driving assembly for driving the inner forming block to rotate.

Preferably, the drive assembly includes fixing base, gear, rack, cylinder and stopper, the fixing base is installed at product stamping die lower mould, the gear is rotated and is installed at the fixing base, and interior shaping piece is installed at the gear middle part, and the movable cartridge has the rack with gear engagement in the product stamping die lower mould, and the product stamping die lower mould outside is provided with the cylinder, and the piston rod of cylinder passes through stopper and rack fixed connection.

Preferably, the outer forming mechanism further comprises a guide block, a sliding block, an upper die insert and a pressing punch, the guide block is arranged on the upper die of the product stamping die, a plurality of sliding blocks which are opposite to the product in dotting positions are horizontally arranged on the guide block in a sliding mode, the outer punch is arranged on the sliding block, the upper die insert matched with the sliding block is vertically inserted on the guide block, a guide inclined plane is arranged on the opposite surfaces of the upper die insert and the sliding block, and the pressing punch for pressing the top of the product is further arranged in the middle of the guide block.

Compared with the prior art, the utility model has the beneficial effects that:

The structure is ingenious, the inner forming block is provided with an inner groove matched with the product dotting position, and the inner groove is matched with the outer punch head to punch out the product side wall required dotting at one time;

The inner forming block is in a shaft shape, the outer diameter is the same as the inner diameter of the product, and the stamping stability can be ensured;

The inner forming block is driven to rotate along with the driving assembly, and an inner groove matched with the product dotting position is formed in the inner forming block, so that the inner protrusion in the shape of a barb can be avoided, and the product can be conveniently demoulded.

Drawings

Fig. 1 is a schematic diagram of the structure of a product to be dotted.

Fig. 2 is a schematic structural view of a self-retracting dotting die device.

Fig. 3 is a sectional view of a self-retracting dotting die apparatus.

Fig. 4 is a partial cross-sectional view of a self-retracting dotting die apparatus.

FIG. 5 is a schematic diagram of the internal forming block structure of a self-retracting dotting mold device.

Wherein 01, inner bulge, 1, inner forming mechanism, 11, inner forming block, 110, inner groove, 111, a back sliding chute, 12, a fixed seat, 13, a gear, 14, a rack, 15, an air cylinder, 16 and a limiting block; 2, an outer forming mechanism, 21, an outer punch, 210, a lug, 22, a guide block, 23, a sliding block, 24, an upper die insert knife, 25 and a material pressing punch.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.

Referring to fig. 1 to 5, an embodiment of the present utility model includes:

The utility model provides a from location dotting mould device, this kind of from location dotting mould device includes interior forming mechanism 1 and with interior forming mechanism 1 complex outer forming mechanism 2, interior forming mechanism 1 includes interior shaping piece 11, interior shaping piece 11 is the axiform and just outside warp is the same with the product internal diameter, be equipped with on the interior shaping piece 11 with product dotting position complex inner groove 110, outer forming mechanism 2 includes with interior shaping piece 11 complex outer punch 21, be equipped with on the outer punch 21 with product dotting position complex lug 210, interior shaping piece 11 outer wall axial is provided with the location spout 111 of being convenient for the location of moving back, interior forming mechanism 1 still includes the drive assembly of the interior shaping piece 11 pivoted.

The driving assembly comprises a fixed seat 12, a gear 13, a rack 14, an air cylinder 15 and a limiting block 16, wherein the fixed seat 12 is arranged on a lower die of a product stamping die, the gear 13 is rotatably arranged on the fixed seat 12, an inner forming block 11 is arranged in the middle of the gear 13, the rack 14 meshed with the gear 13 is movably inserted into the lower die of the product stamping die, the air cylinder 15 is arranged on the outer side of the lower die of the product stamping die, a piston rod of the air cylinder 15 is fixedly connected with the rack 14 through the limiting block 16, the piston rod of the air cylinder 15 stretches to drive the inner forming block 11 to rotate, the dotting position on a product is opposite to a withdrawal chute 111, and barb-shaped inner protrusions are positioned in the withdrawal chute 111 so as to eject and demould the product.

The outer forming mechanism 2 further comprises a guide block 22, a sliding block 23, an upper die slotting tool 24 and a pressing punch 25, wherein the guide block 22 is arranged on an upper die of a product stamping die, a plurality of sliding blocks 23 which are opposite to the product dotting positions are horizontally arranged on the guide block 22 in a sliding mode, the outer punch 21 is arranged on the sliding block 23, the upper die slotting tool 24 matched with the sliding block 23 is vertically inserted on the guide block 22, guide inclined planes are arranged on the opposite surfaces of the upper die slotting tool 24 and the sliding block 23, the upper die slotting tool 24 moves downwards along with the upper die, the upper die slotting tool 24 moves downwards to drive the outer punch 21 to slide towards the product direction, and the pressing punch 25 for pressing the top of the product is further arranged in the middle of the guide block 22.

When the self-withdrawal dotting die device works, a product to be formed moves to the self-withdrawal dotting die device along with a continuous stamping die, an upper die and a lower die of the continuous stamping die are clamped, an inner forming block 11 is inserted into an inner hole of the product, an upper die inserting knife 24 moves downwards along with the upper die, the upper die inserting knife 24 moves downwards to drive a sliding block 23 to slide towards the direction of the product, the sliding block 23 drives an outer punch 21 to punch an outer arm of the product, the outer arm is matched with the inner forming block 11 in the product, dotting is performed on the side wall of the product, after the dotting action is completed, a piston rod of a cylinder 15 extends to drive the inner forming block 11 to rotate, the dotting position on the product is opposite to the withdrawal chute 111, a barb-shaped inner bulge is positioned in the withdrawal chute 111, and the upper die and the lower die of the continuous stamping die are opened, so that the product is ejected out.

The self-returning dotting die device is ingenious in structure, can punch out the dotting required by the side wall of the product at one time, and the inner forming block is driven to rotate along with the driving assembly, so that the inverted hook-shaped inner bulge can be avoided, and the product can be demoulded conveniently.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (3)

1. The self-withdrawal dotting die device is characterized by comprising an inner forming mechanism and an outer forming mechanism matched with the inner forming mechanism, wherein the inner forming mechanism comprises an inner forming block, the inner forming block is in a shaft shape and has the same outer diameter as the inner diameter of a product, an inner groove matched with the dotting position of the product is formed in the inner forming block, the outer forming mechanism comprises an outer punch matched with the inner forming block, a lug matched with the dotting position of the product is arranged on the outer punch, a withdrawal chute which is convenient for withdrawing is axially arranged on the outer wall of the inner forming block, and the inner forming mechanism further comprises a driving assembly for driving the inner forming block to rotate.

2. The self-retracting dotting die device of claim 1, wherein the driving assembly comprises a fixed seat, a gear, a rack, an air cylinder and a limiting block, the fixed seat is arranged on a lower die of the product stamping die, the gear is rotatably arranged on the fixed seat, the inner forming block is arranged in the middle of the gear, the rack meshed with the gear is movably inserted into the lower die of the product stamping die, the air cylinder is arranged on the outer side of the lower die of the product stamping die, and a piston rod of the air cylinder is fixedly connected with the rack through the limiting block.

3. The self-retracting dotting die device of claim 1, wherein the outer forming mechanism further comprises a guide block, a sliding block, an upper die insert and a pressing punch, the guide block is arranged on an upper die of the product stamping die, a plurality of sliding blocks which are opposite to the dotting position on the product are horizontally and slidably arranged on the guide block, the outer punch is arranged on the sliding block, the upper die insert matched with the sliding block is vertically inserted on the guide block, guide inclined planes are arranged on the opposite surfaces of the upper die insert and the sliding block, and the pressing punch for pressing the top of the product is further arranged in the middle of the guide block.