Cold punching die capable of preventing waste materials from jumping

Abstract

The cold punching die comprises a cold punching table, a fixed lower cold punching die which is arranged in parallel is fixedly installed at the top of the cold punching table, a movable upper cold punching die which is arranged in parallel is movably installed at the top of the fixed lower cold punching die, and a punch mechanism is arranged in the center of the interior of the movable upper cold punching die in a penetrating mode. The punch mechanism comprises a cold punch body fixedly installed in the center of the interior of the upper movable cold-punching die, an anti-carrying punch ejector pin is installed in the cold punch body in a sliding mode, limiting mechanisms are arranged at the positions, close to the four corners, of the upper movable cold-punching die, and when the cold punch body returns, the anti-carrying punch ejector pin does not move to separate the cold punch body from waste materials. And after complete separation, the anti-carrying punch ejector pin automatically returns and resets to the interior of the cold punch main body under the action of the telescopic driving equipment, so that waste materials can be effectively prevented from being carried to a die surface when the punch ascends, the quality of a stamping part is ensured, the service life of a die is prolonged, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold stamping processing, in particular to a cold stamping die for preventing waste from jumping. Background Art

[0002] Cold stamping is a pressure processing method that uses a stamping die to apply pressure to sheet metal or hot material on a press at room temperature to cause it to undergo plastic deformation or separation to obtain parts of the desired shape and size.

[0003] In cold stamping, the cold stamping die is the process equipment used for stamping. Without advanced cold stamping dies, advanced stamping technology cannot be realized. Stamping equipment, dies and process conditions are the three elements of stamping. However, there are some problems in the actual operation process. Among them, the most common one is the waste jumping. The main reason is that a vacuum is generated between the punch and the waste when stamping the product. When the punch rises, the waste is brought to the die surface, which directly affects the quality of the stamped parts, reduces the service life of the die, and reduces production efficiency.

[0004] Therefore, it is particularly important to design a cold punching die that prevents waste from jumping to solve the above-mentioned defects. Utility Model Content

[0005] 1) Technical problems to be solved by the utility model

[0006] In view of the deficiencies in the prior art, the utility model designs a cold punching die for preventing waste from jumping, which solves the technical problem of waste jumping that is common in the existing cold stamping processing technology, that is, vacuum is generated between the punch and the waste when stamping the product, and the waste is brought to the die surface when the punch rises.

[0007] 2) Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A cold punching die for preventing waste from jumping comprises a cold punching table, a fixed lower cold punching die arranged in parallel is fixedly installed on the top of the cold punching table, a movable upper cold punching die arranged in parallel is movably installed on the top of the fixed lower cold punching die, a punch mechanism is penetrated at the inner center of the movable upper cold punching die, the punch mechanism comprises a cold punch body fixedly installed at the inner center of the movable upper cold punching die, an anti-material-carrying punch ejector is slidably installed inside the cold punch body, and a limiting mechanism is arranged near the four corners of the movable upper cold punching die.

[0010] As a preferred solution of the utility model, a punch rod hole compatible with the anti-stripping punch ejector is opened through the interior of the cold punch body, a punch depth adjustment seat is spirally installed on the outer surface of the cold punch body, and a telescopic drive device connection terminal is fixedly installed on the top of the anti-stripping punch ejector.

[0011] As a preferred solution of the utility model, the top surface of the movable upper cold punching die is fixedly installed with stamping drive equipment connection terminals on both sides near the punch mechanism, and the movable upper cold punching die is penetrated by limited sliding holes near the four corners.

[0012] As a preferred solution of the utility model, a rubber cushion is glued and installed on the top surface of the fixed lower cold punching die, a stamping notch is opened through the inner center of the fixed lower cold punching die, and fixed installation holes are opened through the four corners of the fixed lower cold punching die.

[0013] As a preferred solution of the utility model, the limiting mechanism includes limiting columns fixedly installed at the four corners of the top surface of the cold punching table, the limiting columns pass through the interior of the fixed installation holes and the limiting sliding holes, the limiting columns are fixedly connected to the fixed lower cold punching die, and the limiting columns are slidably connected to the movable upper cold punching die.

[0014] As a preferred solution of the utility model, a pressure seat is slidably installed on the outer surface of the limiting column near the bottom of the movable upper cold punching die, the top surface of the pressure seat is fixedly connected to the bottom surface of the movable upper cold punching die, and a spring is movably installed on the outer surface of the limiting column near the top of the fixed lower cold punching die.

[0015] 3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The punch mechanism in the utility model is improved on the existing cold punch structure. During the punching operation, when the cold punch body returns, the anti-carrying punch ejector does not move, and the cold punch body and the waste material are separated. After they are completely separated, the anti-carrying punch ejector automatically returns and resets to the inside of the cold punch body under the action of the telescopic driving device, thereby effectively preventing the waste material from being brought to the die surface when the punch rises, ensuring the quality of the stamped parts, extending the service life of the mold, and improving the production efficiency, thereby effectively solving the problems raised in the above-mentioned background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 It is a three-dimensional enlarged structural schematic diagram of the movable upper cold punching die in the utility model;

[0020] Figure 3 It is a three-dimensional enlarged structural schematic diagram of the fixed lower cold punching die in the utility model;

[0021] Figure 4 It is a three-dimensional enlarged structural schematic diagram of the punch mechanism in the utility model;

[0022] Figure 5 It is a three-dimensional enlarged structural diagram of the limiting mechanism in the utility model;

[0023] In the figure: 1. cold punching table; 2. fixed lower cold punching die; 21. rubber cushion layer; 22. stamping notch; 23. fixed mounting hole; 3. movable upper cold punching die; 31. punch mechanism; 311. cold punch body; 3111. punch rod hole; 3112. punching depth adjustment seat; 312. anti-carrying punch ejector pin; 3121. telescopic drive device connection terminal; 32. stamping drive device connection terminal; 33. limit slide hole; 4. limit mechanism; 41. limit column; 42. pressure seat; 43. spring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] Example:

[0026] The utility model provides a cold punching die for preventing waste from jumping, which solves the technical problem of waste jumping caused by vacuum between the punch and the waste when punching products, and the waste is brought to the die surface when the punch rises, which is common in the existing cold punching processing technology.

[0027] See also Figure 1-Figure 5 The utility model provides a technical solution: a cold punching die for preventing waste from jumping, comprising a cold punching table 1, a fixed lower cold punching die 2 arranged in parallel is fixedly installed on the top of the cold punching table 1, a rubber cushion layer 21 is pasted and installed on the top surface of the fixed lower cold punching die 2, a punching notch 22 is penetrated at the inner center of the fixed lower cold punching die 2, and fixed installation holes 23 are penetrated near the four corners of the fixed lower cold punching die 2, and the rubber cushion layer 21 can make the pressing piece have an anti-slip function after being fixed, and at the same time avoid scratches on the outer surface of the pressing piece;

[0028] The top of the fixed lower cold punching die 2 is movably mounted with a parallel movable upper cold punching die 3.

[0029] Among them, a punch mechanism 31 is arranged through the center of the movable upper cold punching die 3, and the punch mechanism 31 includes a cold punch body 311 fixedly installed at the center of the movable upper cold punching die 3, and an anti-material punch ejector pin 312 is slidably installed inside the cold punch body 311, and a punch rod hole 3111 adapted to the anti-material punch ejector pin 312 is arranged through the cold punch body 311, and a telescopic drive device connection terminal 3121 is fixedly installed on the top of the anti-material punch ejector pin 312, and stamping drive device connection terminals 32 are fixedly installed on both sides of the top surface of the movable upper cold punching die 3 near the punch mechanism 31, and limited sliding holes 33 are arranged through the movable upper cold punching die 3 near the four corners. During the cold stamping operation, the stamping drive device and the telescopic drive Under the joint action of the moving equipment, at this time, the punch drive device connection terminal 32 and the telescopic drive device connection terminal 3121 drive the punch mechanism 31 to move downward to punch the pressing piece on the top surface of the fixed lower cold stamping die 2. At this time, the cold stamping head body 311 penetrates the interior of the pressing piece and enters the interior of the stamping notch 22. Then, the cold stamping head body 311 returns under the action of the stamping drive device. At this time, the anti-carrying punch ejector pin 312 does not move, and the cold stamping head body 311 and the waste material are separated. After they are completely separated, the anti-carrying punch ejector pin 312 automatically returns and resets to the interior of the cold stamping head body 311 under the action of the telescopic drive device, thereby effectively preventing the punch from bringing waste material to the die surface when rising, ensuring the quality of stamping parts, extending the service life of the die, and improving production efficiency.

[0030] In addition, in this embodiment, please refer to Figure 4 The outer surface of the cold punch body 311 is spirally installed with a punching depth adjustment seat 3112, and the punching depth adjustment seat 3112 spirally installed on the outer surface of the cold punch body 311 can be spirally rotated upward or downward according to the thickness of the pressing piece, thereby realizing mechanical adjustment of the punching depth;

[0031] The movable upper cold punching die 3 is provided with a limit mechanism 4 near the four corners.

[0032] The limiting mechanism 4 includes limiting columns 41 fixedly installed at the four corners of the top surface of the cold punching table 1, the limiting columns 41 pass through the fixed installation holes 23 and the limiting sliding holes 33, the limiting columns 41 are fixedly connected to the fixed lower cold punching die 2, the limiting columns 41 are slidably connected to the movable upper cold punching die 3, and the outer surface of the limiting columns 41 is slidably installed with a pressure seat 42 near the bottom of the movable upper cold punching die 3, the top surface of the pressure seat 42 is fixedly connected to the bottom surface of the movable upper cold punching die 3, and the outer surface of the limiting columns 41 is close to the fixed lower A spring 43 is movably installed on the top of the cold punching die 2. When punching downward, the movable upper cold punching die 3 presses the spring 43 through the pressure seat 42, and uses the rubber cushion layer 21 to absorb the vibration generated inside the spring 43, and buffers the punching force, thereby reducing the mechanical loss of the punching die, and further extending the service life of the punching die. At the same time, the limit column 41 is set to ensure the stability and reliability of the movable upper cold punching die 3 when it is raised and lowered, avoiding shaking, and ensuring accurate punching and preventing deviation.

[0033] It should be noted here that the stamping drive device and the telescopic drive device are both existing technologies, and will not be described in detail here.

[0034] The working process of the utility model is as follows: during the cold stamping operation, the pressing piece is first fixed on the top surface of the fixed lower cold stamping die 2, and the required processing position is made to correspond to the stamping slot 22, and then under the joint action of the stamping drive device and the telescopic drive device, the stamping drive device connection terminal 32 and the telescopic drive device connection terminal 3121 drive the punch mechanism 31 to move downward to stamp the pressing piece located on the top surface of the fixed lower cold stamping die 2, and at this time, the cold punch body 311 penetrates the interior of the pressing piece and enters the interior of the stamping slot 22, and then the cold punch body 311 returns under the action of the stamping drive device, and the anti-carrying punch ejector pin 312 does not move, and the cold punch body 311 is separated from the waste material, and when they are completely separated, the anti-carrying punch ejector pin 312 automatically returns and resets to the interior of the cold punch body 311 under the action of the telescopic drive device, thereby effectively preventing the waste material from being brought to the die surface when the punch rises, thereby ensuring the quality of the stamped parts, extending the service life of the die, and improving production efficiency.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cold punching die for preventing waste from jumping, comprising a cold punching table (1), characterized in that: A fixed lower cold punching die (2) arranged in parallel is fixedly installed on the top of the cold punching table (1); a movable upper cold punching die (3) arranged in parallel is movably installed on the top of the fixed lower cold punching die (2); a punch mechanism (31) is arranged through the center of the movable upper cold punching die (3); the punch mechanism (31) comprises a cold punch body (311) fixedly installed at the center of the movable upper cold punching die (3); an anti-carrying punch ejector pin (312) is slidably installed inside the cold punch body (311); and a limiting mechanism (4) is arranged near the four corners of the movable upper cold punching die (3).

2. The cold punching die for preventing waste from bouncing according to claim 1, characterized in that: A punch rod hole (3111) adapted to the anti-strip punch ejector pin (312) is provided through the interior of the cold punch body (311), a punch depth adjustment seat (3112) is spirally mounted on the outer surface of the cold punch body (311), and a telescopic drive device connection terminal (3121) is fixedly mounted on the top end of the anti-strip punch ejector pin (312).

3. The cold punching die for preventing waste from bouncing according to claim 1, characterized in that: The top surface of the movable upper cold punching die (3) is fixedly mounted with punching drive device connection terminals (32) on both sides close to the punch mechanism (31), and the movable upper cold punching die (3) is penetrated by limit sliding holes (33) near the four corners.

4. The cold punching die for preventing waste from bouncing according to claim 1, characterized in that: A rubber cushion layer (21) is glued and installed on the top surface of the fixed lower cold punching die (2), a punching notch (22) is opened through the inner center of the fixed lower cold punching die (2), and fixed installation holes (23) are opened through the four corners of the fixed lower cold punching die (2).

5. The cold punching die for preventing waste from jumping according to claim 1, characterized in that: The limiting mechanism (4) comprises limiting columns (41) fixedly mounted at the four corners of the top surface of the cold punching table (1); the limiting columns (41) penetrate the interior of the fixed mounting holes (23) and the limiting sliding holes (33); the limiting columns (41) are fixedly connected to the fixed lower cold punching die (2); and the limiting columns (41) are slidably connected to the movable upper cold punching die (3).

6. The cold punching die for preventing waste from bouncing according to claim 5, characterized in that: A pressure seat (42) is slidably mounted on the outer surface of the limiting column (41) near the bottom of the movable upper cold punching die (3); the top surface of the pressure seat (42) is fixedly connected to the bottom surface of the movable upper cold punching die (3); and a spring (43) is movably mounted on the outer surface of the limiting column (41) near the top of the fixed lower cold punching die (2).

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