Punch forming die convenient for stripping

Abstract

The utility model belongs to the field of punch forming molds, and particularly relates to a punch forming mold convenient for stripping, which comprises a device main body, a limiting structure is arranged on the bottom surface of the device main body, a demolding structure is arranged on the surface of the device main body, and the demolding structure comprises a fixed rod, a fixed rod and a movable rod, one end of the fixing rod is fixedly connected with the surface of the device body, and the other end of the fixing rod is hinged to one end of the connecting rod through a coil spring. According to the punch forming die convenient to strip, through the arranged demolding structure, when an external hydraulic device downwards presses an upper die, the bottom face of the upper die extrudes a pressing rod, the pressing rod extrudes a pull rod, the pull rod extrudes a connecting rod, a pushing block moves backwards, and therefore the pushing block moves backwards and moves out of the extrusion range of the upper die; and under the action of the coil spring, the pushing block is pushed to move forwards to eject the workpiece in the lower mold, so that demolding is automatically completed.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping and forming dies, in particular to a stamping and forming die which is convenient for removing materials. Background Art

[0002] A stamping die is a special process equipment used to process materials into parts during cold stamping. It is called a cold stamping die. Stamping is a pressure processing method that uses a die installed on a press to apply pressure to the material at room temperature to cause separation or plastic deformation, thereby obtaining the desired parts.

[0003] At present, in the existing technology, most of the stamping dies use the ejection structure at the bottom of the die to eject the workpiece inside the die, so as to complete the rapid removal of the workpiece. However, when facing a metal plate with a concave opening, the concave opening will interlock with the die, making it difficult to remove the die with an ordinary ejection structure. When ejecting upward, the uneven force can easily squeeze and deform the thinner metal plate, resulting in damage to the workpiece. In view of this, we propose a stamping die that is convenient for removing the workpiece. Utility Model Content

[0004] The main purpose of the utility model is to provide a stamping forming die which is convenient for removing materials, and can solve the problems raised in the above technical background.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a stamping forming die for convenient stripping, comprising a device body, a limiting structure is arranged on the bottom surface of the device body, and a demoulding structure is arranged on the surface of the device body, and the demoulding structure comprises:

[0006] A fixing rod, one end of which is fixedly connected to the surface of the device body, the other end of which is hinged to one end of a connecting rod through a coil spring, the other end of which is hinged to one end of a pulling rod through a coil spring, and the other end of the pulling rod is hinged to the surface of a pressure rod through a coil spring.

[0007] Preferably, a push block is hinged on the surface of the connecting rod, an extension rod is fixedly connected to the front of the push block, and a push block is fixedly connected to the end face of the extension rod. Through the arrangement of the push block, when the push block moves forward to eject the workpiece inside the mold, the force direction of the workpiece is lateral force. At this time, the metal thickness of the workpiece is thicker, which can withstand the pressure of the push block to a greater extent, and the workpiece is not easily deformed.

[0008] Preferably, a pressure plate is fixedly connected to the surface of the connecting rod.

[0009] Preferably, the device body comprises an upper mold, an inner wall of the upper mold is slidably connected to the surface of the guide rod, and a bottom surface of the guide rod is fixedly connected to the upper surface of the lower mold.

[0010] Preferably, a mold groove is provided on the surface of the lower mold.

[0011] Preferably, the limiting structure comprises a stopper, a surface of the stopper is slidably connected to the inner wall of the lower mold, a bottom surface of the stopper is hinged to two sides of the telescopic rod, and two sides of the telescopic rod are hinged to the bottom surface of the lower mold.

[0012] Beneficial Effects

[0013] The utility model provides a stamping forming die that is convenient for stripping materials. It has the following beneficial effects:

[0014] (1) The stamping die for convenient demoulding has a demoulding structure. When the external hydraulic device presses down the upper die, the bottom surface of the upper die squeezes the pressure rod, so that the pressure rod squeezes the pull rod, and the pull rod squeezes the connecting rod, so that the push block moves backward, thereby making the push block move backward, so that the push block moves out of the extrusion range of the upper die. When the upper die moves upward, the push block is reset under the action of the coil spring, thereby pushing the push block to move forward and eject the workpiece inside the lower die, thereby autonomously completing demoulding.

[0015] (2) The stamping die that facilitates material stripping has a limit structure. When the push block moves backward, the pressure plate swings, thereby squeezing one end of the telescopic rod, so that the other end of the telescopic rod pushes the stopper to move upward, thereby completing the mold groove. When the push block moves forward, the pressure plate swings, thereby disengaging from the telescopic rod, so that the stopper moves downward under the action of gravity, making the mold groove incomplete, so that the demolding structure can be better demolded. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the overall structure of the utility model when viewed from above.

[0020] Explanation of the accompanying drawings: 1. Device body; 2. Demolding structure; 3. Limiting structure; 101. Upper mold; 102. Guide rod; 103. Lower mold; 104. Mold groove; 201. Fixed rod; 202. Connecting rod; 203. Pull rod; 204. Push block; 205. Extension rod; 206. Press rod; 207. Push block; 208. Press plate; 301. Stop block; 302. Telescopic rod.

[0021] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 3 The utility model proposes a stamping forming die for convenient stripping, including a device body 1, the device body 1 includes an upper die 101, the inner wall of the upper die 101 is slidably connected to the surface of a guide rod 102, the bottom surface of the guide rod 102 is fixedly connected to the upper surface of a lower die 103, and a die groove 104 is provided on the surface of the lower die 103. A limiting structure 3 is provided on the bottom surface of the device body 1. Through the provided limiting structure 3, when the push block 207 moves backward, the pressing plate 208 swings, thereby squeezing one end of the telescopic rod 302, so that the other end of the telescopic rod 302 One end pushes the stopper 301 to move upward, thereby completing the combination of the mold groove 104. When the push block 207 moves forward, the pressure plate 208 swings, thereby disengaging from the telescopic rod 302, so that the stopper 301 moves downward under the action of gravity, so that the mold groove 104 is no longer complete, so that the demoulding structure 2 can be better demoulded. The limiting structure 3 includes a stopper 301, and the surface of the stopper 301 is slidably connected to the inner wall of the lower mold 103. The bottom surface of the stopper 301 is hinged to the two sides of the telescopic rod 302, and the two sides of the telescopic rod 302 are hinged to the bottom surface of the lower mold 103.

[0024] In the example process of the utility model, a demoulding structure 2 is arranged on the surface of the device body 1. Through the demoulding structure 2, when the external hydraulic device presses down the upper mold 101, the bottom surface of the upper mold 101 squeezes the pressing rod 206, so that the pressing rod 206 squeezes the pulling rod 203, and the pulling rod 203 squeezes the connecting rod 202, so that the pushing block 204 moves backward, thereby making the pushing block 207 move backward, so that the pushing block 207 moves out of the extrusion range of the upper mold 101. When the upper mold 101 moves upward, the pushing block 204 is under the action of the coil spring, and the pressing rod 206 is reset, thereby pushing the pushing block 207 to move forward and eject the workpiece inside the lower mold 103, thereby autonomously completing the demoulding. The demoulding structure 2 includes: a fixing rod 201, one end of the fixing rod 201 is connected to the mounting The surface of the main body 1 is fixedly connected, the other end of the fixed rod 201 is hinged to one end of the connecting rod 202 through a coil spring, the other end of the connecting rod 202 is hinged to one end of the pull rod 203 through a coil spring, the other end of the pull rod 203 is hinged to the surface of the pressure rod 206 through a coil spring, and the surface of the connecting rod 202 is hinged with a push block 204, through the set push block 207, when the push block 207 moves forward to eject the workpiece inside the mold, the force direction of the workpiece is lateral force. At this time, the metal thickness of the workpiece is thicker, which can withstand the pressure of the push block 207 to a greater extent, and the workpiece is not easy to deform. The front side of the push block 204 is fixedly connected to the extension rod 205, the end face of the extension rod 205 is fixedly connected to the push block 207, and the surface of the connecting rod 202 is fixedly connected to the pressure plate 208.

[0025] In the present invention, when the external hydraulic device presses down the upper mold 101, the bottom surface of the upper mold 101 squeezes the pressing rod 206, so that the pressing rod 206 squeezes the pull rod 203, and the pull rod 203 squeezes the connecting rod 202, so that the pushing block 204 moves backward, thereby making the pushing block 207 move backward, so that the pushing block 207 moves out of the extrusion range of the upper mold 101. When the upper mold 101 moves upward, the pushing block 204 is under the action of the coil spring, and the pressing rod 206 completes the reset, thereby pushing the pushing block 204 to move backward. The block 207 moves forward to eject the workpiece inside the lower mold 103. When the push block 207 moves backward, the pressure plate 208 swings, thereby squeezing one end of the telescopic rod 302, so that the other end of the telescopic rod 302 pushes the stopper 301 to move upward, thereby completing the mold slot 104. When the push block 207 moves forward, the pressure plate 208 swings, thereby disengaging from the telescopic rod 302, so that the stopper 301 moves downward under the action of gravity, making the mold slot 104 incomplete.

[0026] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A stamping die for convenient stripping, comprising a device body (1), a limiting structure (3) being arranged on the bottom surface of the device body (1), characterized in that: A demoulding structure (2) is provided on the surface of the device body (1), and the demoulding structure (2) comprises: A fixed rod (201), one end of which is fixedly connected to the surface of the device body (1), the other end of which is hinged to one end of a connecting rod (202) via a coil spring, the other end of which is hinged to one end of a pull rod (203) via a coil spring, and the other end of which is hinged to the surface of a pressure rod (206) via a coil spring.

2. A stamping die for convenient stripping according to claim 1, characterized in that: A push block (204) is hinged on the surface of the connecting rod (202), an extension rod (205) is fixedly connected to the front surface of the push block (204), and a push block (207) is fixedly connected to the end surface of the extension rod (205).

3. A stamping die for convenient stripping according to claim 2, characterized in that: A pressure plate (208) is fixedly connected to the surface of the connecting rod (202).

4. A stamping die for convenient stripping according to claim 1, characterized in that: The device body (1) comprises an upper mold (101), the inner wall of the upper mold (101) is slidably connected to the surface of a guide rod (102), and the bottom surface of the guide rod (102) is fixedly connected to the upper surface of a lower mold (103).

5. A stamping die for convenient stripping according to claim 4, characterized in that: A mold groove (104) is formed on the surface of the lower mold (103).

6. A stamping die for convenient stripping according to claim 5, characterized in that: The limiting structure (3) comprises a stopper (301), the surface of the stopper (301) is slidably connected to the inner wall of the lower mold (103), the bottom surface of the stopper (301) is hinged to the two sides of the telescopic rod (302), and the two sides of the telescopic rod (302) are hinged to the bottom surface of the lower mold (103).

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