A device for automatic stamping forming of precision parts

Abstract

The utility model discloses a kind of precision parts automatic stamping forming equipment, it is related to part processing field, the utility model includes base and upper die, the top of base both sides is equipped with support column. The utility model is provided with air cylinder, piston, fixed rod, air inlet check valve, air outlet check valve, air jet pipe and air jet hole, when stamping head is stamped forming to small part, upper die moves up, piston extrudes gas in air cylinder inside at this time, and with air cylinder continues to move up, air pressure in the region below piston increases, air outlet check valve opens at this time, air in air cylinder then enters into air jet pipe by air outlet check valve, then is sprayed by air jet hole, to blow off part at the bottom of stamping head, by the mode, without manually taking part, avoid using ejector pin mode to fall down to part downwards when top force is too large and cause part to appear recessed condition, improve the forming quality of part.

Description

Technical Field

[0001] This utility model relates to the field of parts processing, specifically to a device for automatic stamping and forming of precision parts. Background Technology

[0002] Precision parts automatic stamping forming equipment is an intelligent manufacturing equipment that uses high-precision molds and an automated control system to stamp metal or non-metal materials to mass-produce precision parts. It is widely used in the automotive, electronics, aerospace and other fields. The stamping forming equipment mainly uses mechanical or hydraulic presses to provide stable stamping pressure in order to ensure forming accuracy.

[0003] Existing automated stamping equipment for precision parts consists of an upper die, a lower die, and a stamping head. When stamping small parts, a hydraulic cylinder is activated, causing the piston rod to extend and move the upper die downwards, which in turn moves the stamping head downwards, allowing the stamping head to stamp the small parts. After stamping, the parts are attached to the bottom of the stamping head and move upwards with it. Existing equipment typically includes a push rod that penetrates the stamping head. When the parts at the bottom of the stamping head move upwards, the push rod can push the parts down. While this design can quickly push the parts off the stamping head, it may cause dents or scratches on the surface of the parts due to excessive force applied by the push rod, thus affecting the quality of the formed workpiece. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide an automatic stamping and forming equipment for precision parts, so as to solve the technical problem that using a push rod to push down the parts at the bottom of the stamping head may cause the surface of the parts to be concave.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic stamping forming device for precision parts, comprising a base and an upper mold, wherein support columns are installed on both sides of the top of the base, and a top plate is installed on the top of the support columns; a stamping head is installed on the bottom of the upper mold, and air jet holes are opened on both sides of the bottom of the stamping head; air cylinders are bolted to both sides of the top of the upper mold, and an inlet one-way valve is installed on one side of the air cylinder, and an outlet one-way valve is installed on the other side of the air cylinder; an air jet pipe penetrating into the interior of the upper mold is fixed to one end of the outlet one-way valve; two fixing rods are fixed to the bottom of the top plate, and pistons are bolted to the bottom ends of the fixing rods.

[0006] By adopting the above technical solution, when the upper mold moves down, it will drive the air cylinder to move down. The air cylinder moves down while the piston remains stationary, so that the area below the piston is in a negative pressure state. At this time, external air can enter the air cylinder through the inlet one-way valve, while the outlet one-way valve is in the closed state.

[0007] Furthermore, a sealing ring is installed on the outer wall of the piston, and the sealing ring is made of natural rubber material.

[0008] By adopting the above technical solution, the sealing ring can improve the sealing performance between the piston and the cylinder.

[0009] Furthermore, a hydraulic cylinder is installed at the top center of the top plate, and a fixing frame is installed at the output end of the hydraulic cylinder via a piston rod.

[0010] By adopting the above technical solution, the operation of the hydraulic cylinder can cause the piston rod to extend or retract, thereby driving the fixed frame to move, and the fixed frame in turn drives the upper mold to move.

[0011] Furthermore, an upper mold is bolted to the bottom of the fixing frame, and the upper mold is detachably connected to the fixing frame.

[0012] By adopting the above technical solution, the upper mold can be moved when the fixed frame moves, so as to adjust the position of the upper mold.

[0013] Furthermore, a lower mold is bolted to the top of the base, and the lower mold corresponds to the upper mold.

[0014] By adopting the above technical solution, when the upper mold moves down, it will drive the stamping head to move down, so that the stamping head can stamp and form the parts.

[0015] Furthermore, a guide rod is installed between the base and the top plate, and a guide seat is fitted on the outer wall of the guide rod, with one side of the guide seat fixedly connected to the upper mold.

[0016] By adopting the above technical solution, when the upper mold moves, it will drive the guide seat to slide on the guide rod, thereby improving the stability of the upper mold during movement.

[0017] Furthermore, the bottom end of the jet pipe is connected to the jet hole, and the diameter of the jet pipe is larger than the diameter of the jet hole.

[0018] By adopting the above technical solution, gas can enter the interior of the jet hole through the jet pipe and then be ejected through the jet hole.

[0019] Furthermore, the piston is slidably connected to the air cylinder.

[0020] By adopting the above technical solution, the piston can slide inside the cylinder.

[0021] Furthermore, the inlet check valve and the outlet check valve are connected to the air cylinder, and the inlet of the inlet check valve is equipped with a dustproof screen.

[0022] By adopting the above technical solution, external air can enter the air cylinder through the inlet check valve, while the air inside the air cylinder can only be discharged through the outlet check valve.

[0023] Furthermore, a control panel is mounted on the outer surface of the base, and the control panel is electrically connected to the hydraulic cylinder.

[0024] By adopting the above technical solution, the hydraulic cylinder can be started or stopped via the control panel. The operation of the hydraulic cylinder can extend and retract the piston rod, thereby driving the fixed frame to move.

[0025] In summary, the present invention has the following main advantages:

[0026] 1. This utility model is equipped with an air cylinder, piston, fixed rod, inlet one-way valve, outlet one-way valve, jet pipe, and jet hole. When the upper mold moves down, it drives the stamping head down to stamp and form small parts. At the same time, the upper mold drives the air cylinder down. The air cylinder moves down while the piston remains stationary, so that the area below the piston is in a negative pressure state. At this time, external air can enter into the air cylinder through the inlet one-way valve. After the stamping head stamps and forms the small parts, the upper mold moves up, which drives the air cylinder up. At this time, the piston squeezes the gas inside the air cylinder. As the air cylinder continues to move up, the air pressure in the area below the piston increases. At this time, the outlet one-way valve opens, and the air inside the air cylinder enters the jet pipe through the outlet one-way valve and is then ejected through the jet hole to blow the parts at the bottom of the stamping head off. This method eliminates the need to manually remove the parts and avoids the situation where the parts are dented due to excessive ejection force when using the ejector pin method to push the parts down. Thus, the parts can be quickly removed from the bottom of the stamping head, improving the forming quality of the parts.

[0027] 2. This utility model improves the sealing between the piston and the cylinder by setting a sealing ring, preventing gas below the piston from being discharged upward from the gap between the piston and the cylinder. By setting a dustproof net, it prevents external impurities from entering the cylinder through the one-way valve.

[0028] 3. The inlet check valve of this utility model is only responsible for air intake. When exhausting, the inlet check valve is in a closed state. The outlet check valve is only responsible for exhausting. When intakeing, the outlet check valve is in a closed state. The air cylinder can store air. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the overall orthographic structure of this utility model;

[0031] Figure 3 This is a schematic diagram of the base structure of this utility model;

[0032] Figure 4 This is a bottom view of the upper mold structure of this utility model;

[0033] Figure 5 This is a schematic diagram of the air cylinder structure of this utility model;

[0034] Figure 6 This is a schematic diagram of the piston structure of this utility model.

[0035] In the diagram: 1. Base; 2. Support column; 3. Hydraulic cylinder; 4. Top plate; 5. Lower mold; 6. Guide rod; 7. Guide seat; 8. Upper mold; 9. Punch head; 10. Air jet hole; 11. Air cylinder; 12. Fixing rod; 13. Piston; 14. Sealing ring; 15. Inlet check valve; 16. Outlet check valve; 17. Air jet pipe; 18. Dustproof net; 19. Fixing frame; 20. Control panel. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] The embodiments of this utility model will be described below based on its overall structure.

[0038] Example 1:

[0039] An automated stamping and forming device for precision parts, such as Figures 1-6 As shown, the device includes a base 1 and an upper mold 8. Support columns 2 are installed on both sides of the top of the base 1, and a top plate 4 is installed on the top of the support columns 2. A punch head 9 is installed on the bottom of the upper mold 8, and air jet holes 10 are opened on both sides of the bottom of the punch head 9. Air cylinders 11 are bolted to both sides of the top of the upper mold 8. An air inlet check valve 15 is installed on one side of the air cylinder 11, and an air outlet check valve 16 is installed on the other side of the air cylinder 11. The air inlet check valve 15 and the air outlet check valve 16 are connected to the air cylinder 11. A dustproof net 18 is installed at the air inlet of the air inlet check valve 15 so that external air can enter the air cylinder 11 through the air inlet check valve 15, while the air inside the air cylinder 11 can only be discharged through the air outlet check valve 16.

[0040] Specifically, one end of the exhaust check valve 16 is fixed with an air jet pipe 17 that penetrates into the upper mold 8. Two fixing rods 12 are fixed at the bottom of the top plate 4, and the bottom end of the fixing rods 12 is bolted with a piston 13. When the upper mold 8 moves down, it will drive the air cylinder 11 to move down. The air cylinder 11 moves down while the piston 13 remains stationary, so that the area below the piston 13 is in a negative pressure state. At this time, external air can enter into the air cylinder 11 through the intake check valve 15, while the exhaust check valve 16 is in a closed state. The bottom end of the air jet pipe 17 is connected to the air jet hole 10. The diameter of the air jet pipe 17 is larger than the diameter of the air jet hole 10, so that gas can enter into the air jet hole 10 through the air jet pipe 17 and then be ejected through the air jet hole 10. The piston 13 is slidably connected to the air cylinder 11 so that the piston 13 can slide inside the air cylinder 11. Both the air cylinder 11 and the piston 13 are made of aluminum alloy.

[0041] See Figures 1-4 A hydraulic cylinder 3 is installed at the top center of the top plate 4. A fixed frame 19 is installed at the output end of the hydraulic cylinder 3 via a piston rod. When the hydraulic cylinder 3 works, the piston rod can extend or retract, thereby moving the fixed frame 19. The fixed frame 19 then moves the upper mold 8. The upper mold 8 is bolted to the bottom of the fixed frame 19. The upper mold 8 is detachably connected to the fixed frame 19. When the fixed frame 19 moves, it can move the upper mold 8 to adjust its position. A lower mold 5 is also bolted to the top of the base 1. The lower mold 5 corresponds to the upper mold 8. A mold cavity is opened at the top of the lower mold 5. When the upper mold 8 moves down, it will drive the stamping head 9 to move down so that the stamping head 9 can stamp and form the parts. A control panel 20 is installed on the outer surface of the base 1. The control panel 20 is electrically connected to the hydraulic cylinder 3 so that the hydraulic cylinder 3 can be started or stopped through the control panel 20. When the hydraulic cylinder 3 works, the piston rod can extend or retract, thereby moving the fixed frame 19.

[0042] Example 2:

[0043] Based on the above embodiment 1, in order to improve the sealing between piston 13 and cylinder 11, the following structure will be provided.

[0044] Specifically, a sealing ring 14 is installed on the outer wall of the piston 13. The sealing ring 14 is made of natural rubber material. The sealing ring 14 can improve the sealing between the piston 13 and the cylinder 11.

[0045] Example 3:

[0046] Based on the above embodiment 1, in order to improve the stability of the upper mold 8 when it moves, it is necessary to guide the upper mold 8, so the following structure will be set.

[0047] See Figures 1-4A guide rod 6 is installed between the base 1 and the top plate 4. A guide seat 7 is fitted on the outer wall of the guide rod 6, and one side of the guide seat 7 is fixedly connected to the upper mold 8. The upper mold 8 is slidably connected to the guide rod 6 through the guide seat 7. When the upper mold 8 moves, it will drive the guide seat 7 to slide on the guide rod 6, thereby improving the stability of the upper mold 8 when it moves.

[0048] The working principle of this utility model is as follows: First, when using it, the operator can turn on the power supply, then put the small parts into the mold cavity at the top of the lower mold 5, and then start the hydraulic cylinder 3. The operation of the hydraulic cylinder 3 can extend the piston rod, thereby driving the fixed frame 19 to move down, then driving the upper mold 8 to move down, and driving the stamping head 9 to move down, so that the stamping head 9 can stamp and form the small parts. At the same time, when the upper mold 8 moves down, it will drive the air cylinder 11 to move down. The air cylinder 11 moves down while the piston 13 remains stationary, so that the area below the piston 13 is in a negative pressure state. At this time, external air can enter the air cylinder 11 through the air inlet one-way valve 15, while the air outlet one-way valve 16 is in the closed state. At this time, the air cylinder 11 is in the air storage state.

[0049] When small parts are stamped, the hydraulic cylinder 3 can retract the piston rod, which in turn drives the upper mold 8 to move upward, and then drives the stamping head 9 to move upward. The upper mold 8 moves upward, which in turn drives the air cylinder 11 to move upward. At this time, the piston 13 squeezes the gas inside the air cylinder 11. As the air cylinder 11 continues to move upward, the air pressure in the area below the piston 13 increases. At this time, the inlet check valve 15 closes and the outlet check valve 16 opens. The air inside the air cylinder 11 enters the jet pipe 17 through the outlet check valve 16 and is then ejected through the jet hole 10 to blow off the parts at the bottom of the stamping head 9.

[0050] Furthermore, when the upper mold 8 moves, it will cause the guide seat 7 to slide on the guide rod 6, thereby improving the stability of the upper mold 8 when it moves. The setting of the sealing ring 14 can improve the sealing between the piston 13 and the air cylinder 11, preventing the gas below the piston 13 from being discharged upward from the gap between the piston 13 and the air cylinder 11.

[0051] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An automatic stamping forming device for precision parts, comprising a base (1) and an upper mold (8), characterized in that: Support columns (2) are installed on both sides of the top of the base (1). A top plate (4) is installed on the top of the support column (2). A punch head (9) is installed on the bottom of the upper mold (8). Air jet holes (10) are opened on both sides of the bottom of the punch head (9). Air cylinders (11) are installed on both sides of the top of the upper mold (8) by bolts. An air inlet check valve (15) is installed on one side of the air cylinder (11), and an air outlet check valve (16) is installed on the other side of the air cylinder (11). An air jet pipe (17) is fixed to one end of the air outlet check valve (16) and extends into the interior of the upper mold (8). Two fixing rods (12) are fixed to the bottom of the top plate (4), and a piston (13) is installed at the bottom of the fixing rods (12) by bolts.

2. The equipment for automatic stamping of precision parts according to claim 1, characterized in that: The piston (13) has a sealing ring (14) installed on its outer wall, and the sealing ring (14) is made of natural rubber material.

3. The equipment for automatic stamping of precision parts according to claim 1, characterized in that: A hydraulic cylinder (3) is installed at the top middle position of the top plate (4), and a fixing frame (19) is installed at the output end of the hydraulic cylinder (3) through the piston rod.

4. The equipment for automatic stamping of precision parts according to claim 3, characterized in that: The bottom of the fixing frame (19) is bolted to the upper mold (8), and the upper mold (8) is detachably connected to the fixing frame (19).

5. The equipment for automatic stamping of precision parts according to claim 1, characterized in that: The base (1) is also bolted to the top of a lower mold (5), which corresponds to the upper mold (8).

6. The equipment for automatic stamping of precision parts according to claim 1, characterized in that: A guide rod (6) is also installed between the base (1) and the top plate (4). A guide seat (7) is fitted on the outer wall of the guide rod (6), and one side of the guide seat (7) is fixedly connected to the upper mold (8).

7. The equipment for automatic stamping of precision parts according to claim 1, characterized in that: The bottom end of the jet pipe (17) is connected to the jet hole (10), and the diameter of the jet pipe (17) is larger than the diameter of the jet hole (10).

8. The equipment for automatic stamping of precision parts according to claim 1, characterized in that: The piston (13) is slidably connected to the air cylinder (11).

9. The equipment for automatic stamping of precision parts according to claim 1, characterized in that: The inlet check valve (15) and outlet check valve (16) are connected to the air cylinder (11), and the inlet of the inlet check valve (15) is equipped with a dustproof net (18).

10. The equipment for automatic stamping of precision parts according to claim 1, characterized in that: A control panel (20) is mounted on the outer surface of the base (1), and the control panel (20) is electrically connected to the hydraulic cylinder (3).

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