Positioning pin punch forming die

Abstract

The utility model is applicable to the technical field of dies, and provides a positioning pin punch forming die which comprises a base, and a lower die holder is fixedly connected to the middle of the upper surface of the base. According to the positioning pin punch forming die, by arranging a hollow pipe, a piston block and an air bag, when the device is used and a sliding seat is pressed downwards, a pressing rod at the bottom end of the sliding seat can drive the piston block to move downwards, so that air in the hollow pipe is pressed into the air bag, at the moment, a metal sheet is pressed by a male die and a female die, and an air hole is sealed; the air bag can bulge to drive the lower pressing plate to move upwards, in this state, the springs can contract and continuously apply downward force to the lower pressing plate, after stamping is completed, the male die and the female die are separated, the air holes are opened, the springs can compress the air bag, air in the air bag is exhausted into the female die through the air holes, and a workpiece in the female die is blown out. And the effect of workpiece separation is achieved, additional equipment is not needed, and therefore the practicability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and in particular relates to a positioning pin stamping forming mold. Background Art

[0002] A stamping die is a special process equipment used to process materials (metal or non-metal) into parts (or semi-finished products) during cold stamping. It is called a cold stamping die (commonly known as a cold stamping die).

[0003] Stamping dies are widely used today, but the parts produced during stamping processing often stay in the die and are difficult to remove. Initially, workers would directly remove the parts by hand, but this method is unsafe and inefficient. Later, pneumatic methods were used to eject the parts through pressure, but this method requires additional pneumatic equipment, which will increase production costs. Utility Model Content

[0004] The utility model provides a positioning pin stamping forming die, aiming to solve the problem that the current stamping forming die uses a pneumatic method to eject parts through pressure, but this method requires additional pneumatic equipment, which will increase the production cost.

[0005] The utility model is implemented as follows: a positioning pin stamping forming mold includes a base, a lower mold base is fixedly connected to the middle of the upper surface of the base, a concave mold is opened on the top of the lower mold base, a plurality of positioning pins are vertically fixedly connected to the outer edge of the upper surface of the lower mold base, a sliding seat is vertically slidably connected to the outer surface of the plurality of positioning pins, and a convex mold corresponding to and adapted to the concave mold is fixedly connected to the bottom end of the sliding seat.

[0006] Preferably, a hollow tube is vertically fixedly connected to the upper surface of the base, a piston block is arranged inside the hollow tube, a pressure rod is vertically fixedly connected to the top end of the piston block, and the top end of the pressure rod is fixedly connected to the lower surface of the sliding seat.

[0007] Preferably, an inner cavity is opened at the bottom end of the lower mold base, an airbag is fixedly connected to the inside of the inner cavity, a plurality of springs are vertically fixedly connected to the top of the inner cavity, a lower pressure plate is fixedly connected to the bottom ends of the plurality of springs, an air outlet is laterally connected to one side of the bottom end of the outer surface of the hollow tube, a connecting tube is connected to one end surface of the airbag, and the other end of the connecting tube passes through the side surface of the lower mold base and is connected to the air outlet.

[0008] Preferably, an air hole penetrating to the inner cavity is opened at the bottom end of the inside of the concave mold, and the other end of the airbag is connected to the air hole through an air tube.

[0009] Preferably, the other side of the bottom end of the outer surface of the hollow tube is laterally connected to an air inlet head.

[0010] Preferably, a first one-way valve is disposed inside the air inlet head, and a second one-way valve is disposed inside the air outlet head. Beneficial Effects

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The positioning pin stamping forming mold is provided with a hollow tube, a piston block and an air bag. When the device is in use, when the sliding seat is pressed downward, the pressure rod at the bottom end thereof will drive the piston block to move downward, thereby pressing the gas inside the hollow tube into the interior of the air bag. At this time, the punch and the die will also press the metal sheet tightly, thereby closing the pores. The air bag will swell and drive the lower pressure plate to move up. In this state, multiple springs will contract and continue to apply downward force to the lower pressure plate. When the stamping is completed, the punch and the die are separated. At this time, the pores are opened, and the springs will compress the air bag. The gas in the air bag is discharged through the pores to the interior of the die to blow out the workpiece inside the die, thereby achieving the effect of workpiece detachment. No additional equipment is required, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the external structure of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the lower die base of the utility model.

[0016] In the figure: 1-base, 2-lower die base, 3-die, 4-locating pin, 5-sliding seat, 6-punch, 7-hollow tube, 8-pressure rod, 9-piston block, 10-inlet head, 11-first one-way valve, 12-outlet head, 13-second one-way valve, 14-connecting pipe, 15-inner cavity, 16-air bag, 17-spring, 18-lower pressure plate, 19-air hole. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] See also Figure 1-3The utility model provides a locating pin stamping forming mold, including a base 1, a lower die base 2 is fixedly connected to the middle of the upper surface of the base 1, a concave die 3 is opened on the top of the lower die base 2, a plurality of locating pins 4 are vertically fixedly connected to the outer edge of the upper surface of the lower die base 2, a sliding seat 5 is vertically slidably connected to the outer surface of the plurality of locating pins 4, and a convex die 6 corresponding to and adapted to the concave die 3 is fixedly connected to the bottom end of the sliding seat 5.

[0019] In this embodiment, when the device is in use, the hydraulic rod drives the sliding seat 5 to move in the vertical direction, and the base 1 is fixed on the platform. When the sliding seat 5 moves downward, the punch 6 will move downward synchronously until it is completely pressed into the interior of the die 3. In this process, the iron sheet can be stamped into shape.

[0020] The positioning pin 4 plays a role in positioning and limiting the guide, which can ensure the complete vertical movement of the sliding seat 5, prevent the problem of skewness and misalignment between the punch 6 and the die 3, and ensure the effect of the stamping process.

[0021] Furthermore, a hollow tube 7 is vertically fixedly connected to the upper surface of the base 1 , a piston block 9 is arranged inside the hollow tube 7 , a pressure rod 8 is vertically fixedly connected to the top of the piston block 9 , and the top of the pressure rod 8 is fixedly connected to the lower surface of the sliding seat 5 .

[0022] An inner cavity 15 is opened at the bottom end of the lower mold base 2, and an air bag 16 is fixedly connected to the inside of the inner cavity 15. A plurality of springs 17 are vertically fixedly connected to the top of the inner cavity 15, and a lower pressure plate 18 is fixedly connected to the bottom ends of the plurality of springs 17. An air outlet head 12 is laterally connected to one side of the bottom end of the outer surface of the hollow tube 7, and a connecting pipe 14 is connected to one end surface of the air bag 16. The other end of the connecting pipe 14 passes through the side surface of the lower mold base 2 and is connected to the air outlet head 12.

[0023] An air hole 19 penetrating into the inner cavity 15 is formed at the bottom of the concave mold 3 , and the other end of the air bag 16 is connected to the air hole 19 through an air pipe.

[0024] When the device is in use, when the sliding seat 5 is pressed downward, the pressure rod 8 at its bottom end will drive the piston block 9 to move downward, thereby pressing the gas inside the hollow tube into the interior of the airbag 16. At this time, the punch 6 and the die 3 will also press the metal sheet tightly, thereby closing the pores, and the airbag 16 will swell, driving the lower pressure plate 18 to move upward. In this state, multiple springs 17 will contract and continue to apply downward force to the lower pressure plate 18. When the stamping is completed, the punch 6 and the die 3 are separated. At this time, the pores 19 are opened, and the springs 17 will compress the airbag 16. The gas in the airbag 16 is discharged through the pores 19 to the interior of the die 3 to blow out the workpiece inside the die 3, thereby achieving the effect of workpiece detachment. No additional equipment is required, thereby improving the practicality of the device.

[0025] Furthermore, the other side of the bottom end of the outer surface of the hollow tube 7 is laterally connected to an air inlet head 10 .

[0026] A first one-way valve 11 is disposed inside the air inlet head 10 , and a second one-way valve 13 is disposed inside the air outlet head 12 .

[0027] In order to ensure that the piston block 9 can continue to move back and forth vertically smoothly, the air intake head 10 is required to ensure the normal air intake of the hollow tube 7. At the same time, the first one-way valve 11 and the second one-way valve 13 can ensure the overall gas flow direction of the device, thereby ensuring the normal operation of the device.

[0028] The working principle and use process of the utility model are as follows:

[0029] When the device is in use, when the sliding seat 5 is pressed downward, the pressure rod 8 at its bottom end will drive the piston block 9 to move downward, thereby pressing the gas inside the hollow tube into the interior of the airbag 16. At this time, the punch 6 and the die 3 will also press the metal sheet tightly, thereby closing the pores, and the airbag 16 will swell, driving the lower pressure plate 18 to move upward. In this state, multiple springs 17 will contract and continue to apply downward force to the lower pressure plate 18. When the stamping is completed, the punch 6 and the die 3 are separated. At this time, the pores 19 are opened, and the springs 17 will compress the airbag 16. The gas in the airbag 16 is discharged through the pores 19 to the interior of the die 3 to blow out the workpiece inside the die 3, thereby achieving the effect of workpiece detachment. No additional equipment is required, thereby improving the practicality of the device.

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

Claims

1. A positioning pin stamping die, characterized in that: The invention comprises a base (1), wherein a lower die seat (2) is fixedly connected to the middle of the upper surface of the base (1), a concave die (3) is provided at the top of the lower die seat (2), a plurality of positioning pins (4) are vertically fixedly connected to the outer edge of the upper surface of the lower die seat (2), a sliding seat (5) is vertically slidably connected to the outer surface of the plurality of positioning pins (4), and a convex die (6) corresponding to and matching the concave die (3) is fixedly connected to the bottom end of the sliding seat (5).

2. A positioning pin stamping die as claimed in claim 1, characterized in that: A hollow tube (7) is vertically fixedly connected to the upper surface of the base (1), a piston block (9) is arranged inside the hollow tube (7), a pressure rod (8) is vertically fixedly connected to the top end of the piston block (9), and the top end of the pressure rod (8) is fixedly connected to the lower surface of the sliding seat (5).

3. A positioning pin stamping die as claimed in claim 2, characterized in that: An inner cavity (15) is provided at the bottom end of the lower die base (2), an air bag (16) is fixedly connected to the inner cavity (15), a plurality of springs (17) are vertically fixedly connected to the top end of the inner cavity (15), a lower pressure plate (18) is fixedly connected to the bottom ends of the plurality of springs (17), a gas outlet (12) is laterally connected to one side of the bottom end of the outer surface of the hollow tube (7), a connecting tube (14) is connected to one end surface of the air bag (16), and the other end of the connecting tube (14) passes through the side surface of the lower die base (2) and is connected to the gas outlet (12).

4. A positioning pin stamping die as claimed in claim 3, characterized in that: An air hole (19) penetrating into the inner cavity (15) is provided at the bottom end of the concave mold (3), and the other end of the air bag (16) is connected to the air hole (19) via an air pipe.

5. A positioning pin stamping die as claimed in claim 3, characterized in that: The other side of the bottom end of the outer surface of the hollow tube (7) is laterally connected to an air inlet head (10).

6. A positioning pin stamping die as claimed in claim 5, characterized in that: A first one-way valve (11) is arranged inside the air inlet head (10), and a second one-way valve (13) is arranged inside the air outlet head (12).

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