CN210847990U

CN210847990U - Computer case panel punching press lower mould

Info

Publication number: CN210847990U
Application number: CN201921970733.2U
Authority: CN
Inventors: 施如强; 张日兴
Original assignee: Chongqing City Tongliang District Jingyi Computer Accessories Co ltd
Current assignee: Chongqing City Tongliang District Jingyi Computer Accessories Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-06-26
Anticipated expiration: 2029-11-14

Abstract

The utility model provides a computer case panel punching press lower mould, including die holder and lower mould, the mounting hole has been arranged on the protruding edge of die holder, the die holder with lower mould bolted connection, be provided with lower mould convex ejector pin hole in the computer case panel punching press lower mould, the osculum in lower mould convex ejector pin hole is opened on the working end face of lower mould, lower mould convex ejector pin hole is perpendicular with the faying face of die holder and lower mould, lower mould convex ejector pin has been arranged in the lower mould convex ejector pin hole, and the shoulder in lower mould convex ejector pin upper end withstands the step department in lower mould convex ejector pin hole, lower mould convex ejector pin stretches out lower mould working end face, and the lower mould spring has been arranged to the lower extreme tip department of lower mould convex ejector pin. The utility model has the advantages of prevent the stamping workpiece adhesion on the lower mould.

Description

Computer case panel punching press lower mould

Technical Field

The utility model relates to a punching press lower mould, especially a computer case panel punching press lower mould.

Background

The stamping die is a tool for processing raw materials into parts or semi-finished products in a cold working process of the materials, and generally has the characteristics of one-step forming, high precision, high speed and the like, and the raw materials are sheet-shaped or metal plates with low thickness. The stamping die generally includes an upper die and a lower die, a plate-shaped stamping material is placed on the lower die, and then the plate is impacted by the upper die to obtain a required shape specification. However, in actual production, there sometimes occurs a problem that the product after the impact is deformed and then adheres to the lower mold, and particularly in an automated production process, a production process error is caused.

SUMMERY OF THE UTILITY MODEL

The stamping workpiece that exists sometimes can the adhesion not enough on the lower mould to among the prior art, the utility model provides a computer case panel punching press lower mould, the utility model discloses a following technical scheme:

in order to achieve the above purpose, the utility model adopts the following technical scheme:

the lower die comprises a lower die base and a lower die, wherein a mounting hole is formed in a convex edge of the lower die base, the lower die base is connected with the lower die through a bolt, a lower die convex ejector rod hole is formed in the lower die for stamping the computer case panel, a small opening of the lower die convex ejector rod hole is formed in the working end face of the lower die, the lower die convex ejector rod hole is perpendicular to the combined surface of the lower die base and the lower die, a lower die convex ejector rod is arranged in the lower die convex ejector rod hole, the shoulder of the upper end of the lower die convex ejector rod abuts against the step of the lower die convex ejector rod hole, the lower die convex ejector rod extends out of the working end face of the lower die, and a lower die spring is arranged at the.

Generally, the working end face of the lower die is provided with a yielding hole. The yielding hole is used for being matched with the punching column of the upper die and yielding when the punching column punches a hole.

Preferably, the maximum length of the convex mandril of the lower die extending out of the working end face of the lower die is 2-3 mm. This length can reach the effect of pushing the punching press panel off the lower mould, is unlikely to again to push the punching press panel off the very big position of skew, does not influence the snatching of manipulator.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. can effectively prevent the stamping part from adhering on the lower die. The ejector rod is arranged, so that the stamping processing of the stamping part cannot be influenced, and the stamping part can be ejected from the lower die.

2. Simple structure and can be applied to various lower dies. The lower die is connected with the lower die base through a bolt, and the lower die base can be connected with upper dies of various specifications.

Drawings

Fig. 1 is a schematic structural view of a punching apparatus.

FIG. 2 is a schematic cross-sectional view of the upper die assembly.

FIG. 3 is a schematic cross-sectional view of the lower die assembly.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1-3, a computer case panel stamping device includes a fixed punch lower seat 4 and a punch upper seat 3 capable of moving up and down, a first upper die assembly 11, a second upper die assembly 12 and a third upper die assembly 13 are connected to a lower end face of the punch upper seat 3 by screws, each upper die assembly includes an upper die seat 101 and an upper die 102, the upper die seats 101 and the upper dies 102 are connected by bolts, an upper die convex ejector rod hole 104 is provided in each upper die assembly, a small opening of the upper die convex ejector rod hole 104 is opened on a working end face of the upper die 102, an upper die convex ejector rod 103 is movably arranged in the upper die convex ejector rod hole 104, a shoulder at a lower end of the upper die convex ejector rod 103 abuts against a step of the upper die convex ejector rod hole 104, and an upper die spring 105 is arranged at an upper end of. The upper die 102 is provided with the punching column 106, the lower die 201 is provided with an abdicating hole 206 corresponding to the punching column 106, the diameter of the abdicating hole 206 is larger than that of the punching column 106, and the depth of the abdicating hole 206 is larger than or equal to the length of the punching column 106. The punching column 106 comprises a punching ring 107 arranged at the end part, and the maximum extending length of the upper die convex mandril 103 extending out of the working end surface of the upper die 102 is equal to or 2-3 mm longer than the punching column 106. When the external force acts on the lower end of the upper mold convex mandril 103, the upper mold spring 105 is compressed, so that the upper mold convex mandril 103 retracts into the upper mold 102, and the punching of the computer case panel is not influenced; the elasticity of the upper die spring 105 pushes the upper die convex mandril 103 to make it protrude outwards, thereby preventing the computer case panel from being stuck on the upper die 102. The lower seat 4 of the punch press is provided with corresponding lower die components, and each lower die component comprises a first lower die component 21, a second lower die component 22 and a third lower die component 23 which are correspondingly arranged in sequence; the lower die assembly comprises a lower die base 202 and a lower die 201, a mounting hole used for being connected with a 4-screw lower seat of a punch press is arranged on the lower die base 202, the lower die base 202 is connected with the lower die 201 through a bolt, a lower die convex ejector rod hole 204 is formed in the lower die assembly, a small opening of the lower die convex ejector rod hole 204 is formed in the working end face of the lower die 201, a lower die convex ejector rod 203 is arranged in the lower die convex ejector rod hole 204, a shoulder at the upper end of the lower die convex ejector rod 203 abuts against a step of the lower die convex ejector rod hole 204, and a lower die spring 205 is arranged at the lower end of. The maximum length of the lower die convex mandril 203 extending out of the working end face of the lower die 201 is 2-3 mm. When the upper end of the lower mold convex mandril 203 is pressed under the action of external force, the lower mold spring 205 is compressed, so that the lower mold convex mandril 203 retracts into the lower mold 201, and the punching of the panel of the computer case is not influenced; the elasticity of the lower die spring 205 pushes the lower die convex push rod 203 to make it protrude outwards, thereby preventing the computer case panel from being adhered to the lower die 201.

The computer case panel punching machine further comprises a hydraulic system, wherein the hydraulic system provides power to drive an upper seat of the punching machine to move up and down so that the upper die assembly can downwards punch the computer case panel placed on the lower die assembly; the automatic panel placing device further comprises a mechanical arm 5 and a control device, wherein a first mechanical arm 51, a second mechanical arm 52, a third mechanical arm 53 and a fourth mechanical arm 54 are fixedly arranged on the mechanical arm 5 in sequence, the mechanical arm 5 reciprocates left and right, the first mechanical arm 51 is used for placing a computer case panel at a previous station on the first lower die assembly 21, the second mechanical arm 52 is used for placing a computer case panel on the first lower die assembly 21 on the second lower die assembly 22, the third mechanical arm 53 is used for placing a computer case panel on the second lower die assembly 22 on the third lower die assembly 23, the fourth mechanical arm 54 is used for placing a computer case panel on the third lower die assembly 23 on a next station, the control device is used for controlling the hydraulic system and the mechanical arm 5, when the mechanical arm 5 completes a reciprocating motion, the control device controls the hydraulic system to enable the punch upper seat 3 to complete a punching process;

finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A lower stamping die for a computer case panel comprises a lower die holder (202) and a lower die (201), it is characterized in that a mounting hole is arranged on the convex edge of the lower die holder (202), the lower die holder (202) is connected with the lower die (201) through a bolt, a lower die convex ejector rod hole (204) is arranged in the lower die for stamping the panel of the computer case, a small opening of the lower die convex ejector rod hole (204) is opened on the working end surface of the lower die (201), the convex ejector rod hole (204) of the lower die is vertical to the combined surface of the lower die base (202) and the lower die (201), a lower die convex mandril (203) is arranged in the lower die convex mandril hole (204), the shoulder at the upper end of the lower die convex mandril (203) props against the step of the lower die convex mandril hole (204), the lower die convex mandril (203) extends out of the working end surface of the lower die (201), and a lower die spring (205) is arranged at the lower end part of the lower die convex mandril (203).

2. The computer case panel punching lower die according to claim 1, wherein a relief hole (206) is arranged on a working end surface of the lower die (201).

3. The computer case panel stamping lower die of claim 2, wherein: the maximum length of the lower die convex ejector rod (203) extending out of the working end face of the lower die (201) is 2-3 mm.