Self-discharging compression molding device for automobile valve seat ring machining

Abstract

The invention relates to the technical field of automobile valve seat ring machining, and provides a self-discharging compression molding device for automobile valve seat ring machining, which comprises a lower die seat, a stamping mechanism is fixedly connected to the top of the lower die seat, and a molding groove is formed in the lower die seat. The stamping mechanism comprises a supporting frame plate fixedly installed on the top of the lower die base, a hydraulic rod is fixedly connected to the top of the supporting frame plate, an upper die is fixedly connected to the output end of the hydraulic rod, and a guide rod is fixedly connected to the top of the upper die. By starting the hydraulic rod, the upper mold can move, the guide rods slide along the supporting frame plate, under the guiding effect of the two guide rods, the upper mold can be stably pressed downwards, the upper mold is driven to be in accurate butt joint with the lower mold base, the pressing forming quality of metal powder in the forming groove is improved, the upper mold is prevented from deviating when pressed downwards, and the forming quality of the metal powder is improved. And the quality and the efficiency of forming and processing the automobile valve seat ring are improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile valve seat processing, in particular to a self-unloading pressing and forming device for automobile valve seat processing. Background Art

[0002] Automobile valve seat is an annular component located on the engine cylinder head, installed in the matching position between the intake and exhaust ducts and the valve cone surface, usually made of heat-resistant alloy steel, alloy cast iron, powder metallurgy materials, etc. These materials have good high temperature resistance, wear resistance and corrosion resistance, and can maintain stable performance in the high temperature, high pressure and high frequency impact working environment of the engine. It is generally in a circular shape, with the inner side processed into an inclined surface that matches the valve cone surface, and the outer side closely matches the seat hole of the cylinder head. Some valve seat rings may also have some special structural designs, such as bosses for positioning, grooves for heat dissipation, etc., which include ensuring the sealing between the valve and the combustion chamber, so that the gas in the combustion chamber will not leak during the compression and combustion process, maintaining the normal working pressure of the engine, and ensuring combustion efficiency and power output. When the engine is running, the valve will open and close frequently and at a very fast speed. The valve seat ring needs to withstand the high-speed impact when the valve is seated to ensure the normal cooperation and working stability between the valve and the valve seat. The production of valve seat rings is to first make a semi-finished product, then press the semi-finished product onto the cylinder head, and then process the finished product to produce a sealing belt. The semi-finished valve seat ring is generally pressed into shape by a pressing molding mechanism to form a semi-finished product by pressing metal powder; The above-mentioned existing technical solutions have the following defects: the existing pressing and forming devices for automobile valve seat ring processing often use a single hydraulic cylinder to close the upper and lower molds to press and form the metal powder inside, but the stability of the upper and lower molds is poor, which makes the upper and lower molds easily offset, affecting the quality of automobile valve seat ring molding, and it is impossible to demold and unload the molded automobile valve seat ring while the mold is open. The staff needs to manually use additional tools, such as ejectors, pry bars, etc., to remove the molded valve seat ring from the cavity of the lower mold assembly, or wait for the demolding mechanism equipped with the equipment to complete the unloading after the mold is fully opened through a series of complex actions. This not only makes the operation process cumbersome and time-consuming, which seriously affects the production efficiency, but also in the manual operation process, it is easy to damage the molded valve seat ring due to improper operation, reducing the product qualification rate and increasing production costs. Summary of the invention

[0003] The purpose of the present invention is to provide a self-unloading pressing and forming device for automobile valve seat ring processing, so as to solve the defect that the existing pressing and forming device for automobile valve seat ring processing cannot demould and unload the molded automobile valve seat ring when the mold is opened.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a self-unloading pressing and forming device for automobile valve seat ring processing, comprising a lower die seat; The top of the lower mold base is fixedly connected with a stamping mechanism, and a molding groove is provided inside the lower mold base; The stamping mechanism comprises a support frame plate fixedly mounted on the top of the lower mold seat, the top of the support frame plate is fixedly connected to a hydraulic rod, the output end of the hydraulic rod is fixedly connected to the upper mold, and the top of the upper mold is fixedly connected to a guide rod; A demoulding mechanism is installed inside the lower mold base, and the demoulding mechanism includes a movable plate movably installed inside the lower mold base, and a lifting rod is fixedly connected to the top of the movable plate.

[0005] Preferably, the guide rod is symmetrically arranged with respect to the central axis of the upper mold, the upper mold is matched with the lower mold seat, the upper mold and the lower mold seat are arranged in parallel, and the upper mold is arranged vertically above the lower mold seat.

[0006] Preferably, the guide rod and the support frame plate form a sliding structure, and the support frame plate is of open-hole design.

[0007] Preferably, the outer wall of the movable plate is fixedly connected to a receiving plate, the outer wall of the receiving plate is fixedly connected to a sliding block, the outer wall of the receiving plate is movably connected to an L-shaped pull plate, one side of the L-shaped pull plate is fixedly connected to the upper mold, the lifting rod and the lower mold seat form a sliding structure, and the lifting rod is symmetrically arranged with the central axis of the movable plate.

[0008] Preferably, an avoidance groove is provided inside the L-shaped pull plate, and the L-shaped pull plate forms a sliding structure with the sliding block through the avoidance groove.

[0009] Preferably, the receiving plate is welded to the slider, and the slider is symmetrically arranged with respect to the central axis of the receiving plate.

[0010] Preferably, the movable plate is of open-hole design, the interior of the movable plate is movably connected to a support rod, the outer wall of the support rod is fixedly connected to a support clamping plate, and the top of the movable plate is fixedly connected to a return spring.

[0011] Preferably, the bottom end of the support rod is fixedly connected to the inner wall of the lower mold base, the support rod and the movable plate form a sliding structure, and the return spring is sleeved on the outer wall of the support rod.

[0012] Preferably, the outer wall of the lower mold base is fixedly connected to a feeding mechanism, and the feeding mechanism includes a positioning frame fixedly installed on one side of the lower mold base, the outer wall of the positioning frame is fixedly connected to an electric push rod, the output end of the electric push rod is fixedly connected to a storage barrel, the outer wall of the storage barrel is fixedly connected to a movable rod, the bottom of the storage barrel is fixedly connected to a delivery pipe, and the outer wall of the delivery pipe is installed with a solenoid valve.

[0013] Preferably, the positioning frame is L-shaped, the positioning frame and the movable rod form a sliding structure, the positioning frame is welded to the lower mold seat, and the feed pipe is inclined.

[0014] The present invention provides a self-unloading pressing and forming device for automobile valve seat processing, which has the advantages of: By providing a stamping mechanism, the upper mold can be moved by starting the hydraulic rod, so that the guide rod slides along the support frame plate. Under the guidance of the two guide rods, the upper mold can be pressed down stably, driving the upper mold to accurately dock with the lower mold seat, thereby improving the quality of the metal powder pressing in the molding groove, preventing the upper mold from shifting when pressing down, and improving the quality and efficiency of the automobile valve seat ring molding process; Furthermore, after the metal powder is pressed into an automobile valve seat ring, the support frame plate is started to raise the upper mold, drive the L-shaped pull plate to move, and make the slider slide along the avoidance groove. When the upper mold is raised to a certain height, the L-shaped pull plate will squeeze the bottom of the receiving plate, thereby pulling the receiving plate upward, making the movable plate slide and rise along the support rod, so that the lifting rod slides along the lower mold seat and lifts the automobile valve seat ring formed in the molding groove, so that the automobile valve seat ring is removed from the molding groove for unloading, and the staff does not need to manually use additional tools to remove the formed valve seat ring from the cavity of the lower mold assembly, which has the effect of facilitating the demoulding and unloading of the formed automobile valve seat ring, and also prevents the quality of automobile valve seat ring production from being affected by improper demoulding operation, and further improves the quality and efficiency of automobile valve seat ring molding processing; Furthermore, when the upper mold is pressed down, the L-shaped pull plate will release the squeeze on the receiving plate. At this time, under the action of the reset spring, the movable plate can slide and reset along the support rod, and finally fall onto the support card plate, so that the top of the lifting rod is flush with the inner bottom wall of the forming groove, so that the pressing and forming device can perform the next pressing operation faster, further improving the quality and efficiency of the automobile valve seat ring forming process; By providing a forming groove and a feeding mechanism, when the upper mold is raised, the pressed automobile valve seat ring is taken out, and the storage barrel can be moved by starting the electric push rod, driving the movable rod to slide stably along the positioning frame, so that the feed pipe fixedly connected to the bottom of the storage barrel can be moved. When the discharge port of the feed pipe moves above the forming groove, the solenoid valve is started, and the metal powder in the storage barrel can be injected into the forming groove through the feed pipe. When the thickness of the automobile valve seat ring to be processed changes, it is only necessary to adjust the metal powder feed amount by controlling the solenoid valve, thereby improving the convenience of feeding the metal powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a rear view schematic diagram of the present invention; Figure 3 A three-dimensional diagram of the lower mold base of the present invention; Figure 4 It is a three-dimensional cross-sectional view of the lower mold base of the present invention; Figure 5 It is a schematic side view of the demoulding mechanism of the present invention; Figure 6 It is a schematic diagram of the demoulding mechanism of the present invention; Figure 7 It is a front view schematic diagram of the present invention; Figure 8 It is a side view schematic diagram of the feeding mechanism of the present invention.

[0016] Explanation of the reference numerals in the figure: 1. lower mold base; 2. stamping mechanism; 21. support frame plate; 22. hydraulic rod; 23. upper mold; 24. guide rod; 3. demoulding mechanism; 31. movable plate; 311. support rod; 312. support clamping plate; 313. reset spring; 32. lifting rod; 33. receiving plate; 34. slider; 35. L-shaped pull plate; 36. avoidance groove; 4. molding groove; 5. feeding mechanism; 51. positioning frame; 52. electric push rod; 53. movable rod; 54. storage barrel; 55. feed pipe; 56. solenoid valve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 8The present invention provides a self-unloading pressing and forming device for automobile valve seat ring processing, which includes a lower mold seat 1.

[0019] Reference Figure 1 Figure 2 and Figure 3 As shown, a stamping mechanism 2 is fixedly connected to the top of the lower mold base 1, a forming groove 4 is provided inside the lower mold base 1, and the stamping mechanism 2 includes a support frame plate 21 fixedly installed on the top of the lower mold base 1, a hydraulic rod 22 is fixedly connected to the top of the support frame plate 21, an upper mold 23 is fixedly connected to the output end of the hydraulic rod 22, and a guide rod 24 is fixedly connected to the top of the upper mold 23, and the guide rod 24 is symmetrically arranged about the central axis of the upper mold 23, the upper mold 23 is adapted to the lower mold base 1, the upper mold 23 is arranged parallel to the lower mold base 1, and the upper mold 23 is vertically arranged above the lower mold base 1, the guide rod 24 and the support frame plate 21 constitute a sliding structure, and the support frame plate 21 is an open-hole design.

[0020] By starting the hydraulic rod 22, the upper mold 23 can be moved, so that the guide rod 24 slides along the support frame plate 21. Under the guidance of the two guide rods 24, the upper mold 23 can be pressed down stably, driving the upper mold 23 to accurately dock with the lower mold seat 1, thereby improving the quality of the metal powder pressing in the molding groove 4.

[0021] Reference Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, a demoulding mechanism 3 is installed inside the lower mold base 1, and the demoulding mechanism 3 includes a movable plate 31 movably installed inside the lower mold base 1, a lifting rod 32 is fixedly connected to the top of the movable plate 31, a receiving plate 33 is fixedly connected to the outer wall of the movable plate 31, a sliding block 34 is fixedly connected to the outer wall of the receiving plate 33, an L-shaped pull plate 35 is movably connected to the outer wall of the receiving plate 33, one side of the L-shaped pull plate 35 is fixedly connected to the upper mold 23, the lifting rod 32 and the lower mold base 1 form a sliding structure, the lifting rod 32 is symmetrically arranged with the central axis of the movable plate 31, and an avoidance groove 35 is opened inside the L-shaped pull plate 35. 6. The L-shaped pull plate 35 forms a sliding structure with the slider 34 through the avoidance groove 36. The receiving plate 33 is welded to the slider 34. The slider 34 is symmetrically arranged with the central axis of the receiving plate 33. The movable plate 31 is an open-hole design. The inner part of the movable plate 31 is movably connected with a support rod 311. The outer wall of the support rod 311 is fixedly connected with a support clamping plate 312. The top of the movable plate 31 is fixedly connected with a return spring 313. The bottom end of the support rod 311 is fixedly connected to the inner wall of the lower mold base 1. The support rod 311 and the movable plate 31 form a sliding structure. The return spring 313 is sleeved on the outer wall of the support rod 311.

[0022] After the metal powder is pressed into a valve seat ring for an automobile, the support frame plate 21 is started to raise the upper mold 23, driving the L-shaped pull plate 35 to move, so that the slider 34 slides along the avoidance groove 36. When the upper mold 23 rises to a certain height, the L-shaped pull plate 35 will squeeze the bottom of the receiving plate 33, thereby pulling the receiving plate 33 upward, so that the movable plate 31 slides and rises along the support rod 311, so that the lifting rod 32 slides along the lower mold base 1 and makes it push the automobile molded in the molding groove 4. The vehicle valve seat ring is lifted up to remove the vehicle valve seat ring from the molding groove 4 for unloading. Conversely, when the upper mold 23 is pressed down, the L-shaped pull plate 35 releases the extrusion of the receiving plate 33. At this time, under the action of the reset spring 313, the movable plate 31 can slide and reset along the support rod 311, and finally fall onto the support clamping plate 312, so that the top end of the lifting rod 32 is flush with the inner bottom wall of the molding groove 4, so that the metal powder can be pressed and molded for the next time as soon as possible, thereby improving the overall processing efficiency.

[0023] Reference Figure 1 , Figure 7 and Figure 8 As shown, the outer wall of the lower mold base 1 is fixedly connected to the feeding mechanism 5, and the feeding mechanism 5 includes a positioning frame 51 fixedly installed on one side of the lower mold base 1, the outer wall of the positioning frame 51 is fixedly connected to the electric push rod 52, the output end of the electric push rod 52 is fixedly connected to the storage barrel 54, the outer wall of the storage barrel 54 is fixedly connected to the movable rod 53, the bottom of the storage barrel 54 is fixedly connected to the delivery pipe 55, and the outer wall of the delivery pipe 55 is installed with a solenoid valve 56, the positioning frame 51 is L-shaped, the positioning frame 51 and the movable rod 53 constitute a sliding structure, the positioning frame 51 is welded to the lower mold base 1, and the delivery pipe 55 is inclined.

[0024] When the upper mold 23 is raised, the pressed automobile valve seat ring is taken out, and the storage barrel 54 can be moved by starting the electric push rod 52, driving the movable rod 53 to slide stably along the positioning frame 51, so that the feed pipe 55 fixedly connected to the bottom of the storage barrel 54 can be moved. When the discharge port of the feed pipe 55 moves to above the molding groove 4, the solenoid valve 56 is started, and the metal powder in the storage barrel 54 can be injected into the molding groove 4 through the feed pipe 55. When the thickness of the automobile valve seat ring to be processed changes, the metal powder feed amount can be adjusted by controlling the solenoid valve 56.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-unloading pressing and forming device for processing automobile valve seat rings, comprising a lower die seat (1); Features: The top of the lower mold base (1) is fixedly connected to a punching mechanism (2), and a molding groove (4) is provided inside the lower mold base (1); The punching mechanism (2) comprises a support frame plate (21) fixedly mounted on the top of the lower die seat (1); a hydraulic rod (22) is fixedly connected to the top of the support frame plate (21); an output end of the hydraulic rod (22) is fixedly connected to an upper die (23); and a guide rod (24) is fixedly connected to the top of the upper die (23); A demoulding mechanism (3) is installed inside the lower mold base (1), and the demoulding mechanism (3) comprises a movable plate (31) movably installed inside the lower mold base (1), and a lifting rod (32) is fixedly connected to the top of the movable plate (31).

2. The self-unloading pressing and forming device for automobile valve seat ring processing according to claim 1 is characterized in that: The guide rod (24) is symmetrically arranged about the central axis of the upper mold (23); the upper mold (23) is matched with the lower mold base (1); the upper mold (23) and the lower mold base (1) are arranged in parallel; and the upper mold (23) is arranged vertically above the lower mold base (1).

3. The self-unloading pressing and forming device for automobile valve seat ring processing according to claim 2 is characterized in that: The guide rod (24) and the support frame plate (21) form a sliding structure, and the support frame plate (21) is of an open-hole design.

4. The self-unloading pressing and forming device for automobile valve seat ring processing according to claim 1 is characterized in that: The outer wall of the movable plate (31) is fixedly connected to a receiving plate (33), the outer wall of the receiving plate (33) is fixedly connected to a sliding block (34), the outer wall of the receiving plate (33) is movably connected to an L-shaped pull plate (35), one side of the L-shaped pull plate (35) is fixedly connected to the upper mold (23), the lifting rod (32) and the lower mold base (1) form a sliding structure, and the lifting rod (32) is symmetrically arranged with the central axis of the movable plate (31).

5. The self-unloading pressing and forming device for automobile valve seat ring processing according to claim 4 is characterized in that: An avoidance groove (36) is provided inside the L-shaped pull plate (35), and the L-shaped pull plate (35) forms a sliding structure with the sliding block (34) via the avoidance groove (36).

6. The self-unloading pressing and forming device for automobile valve seat ring processing according to claim 4 is characterized in that: The receiving plate (33) is welded to the sliding block (34), and the sliding block (34) is symmetrically arranged with respect to the central axis of the receiving plate (33).

7. The self-unloading pressing and forming device for automobile valve seat ring processing according to claim 1 is characterized in that: The movable plate (31) is of open-hole design, the interior of the movable plate (31) is movably connected to a support rod (311), the outer wall of the support rod (311) is fixedly connected to a support clamping plate (312), and the top of the movable plate (31) is fixedly connected to a return spring (313).

8. The self-unloading pressing and forming device for automobile valve seat ring processing according to claim 7, characterized in that: The bottom end of the support rod (311) is fixedly connected to the inner wall of the lower mold base (1); the support rod (311) and the movable plate (31) form a sliding structure; and the return spring (313) is sleeved on the outer wall of the support rod (311).

9. The self-unloading pressing and forming device for automobile valve seat ring processing according to claim 1, characterized in that: The outer wall of the lower mold base (1) is fixedly connected to a feeding mechanism (5), the feeding mechanism (5) comprises a positioning frame (51) fixedly mounted on one side of the lower mold base (1), the outer wall of the positioning frame (51) is fixedly connected to an electric push rod (52), the output end of the electric push rod (52) is fixedly connected to a material storage barrel (54), the outer wall of the material storage barrel (54) is fixedly connected to a movable rod (53), the bottom of the material storage barrel (54) is fixedly connected to a material delivery pipe (55), and the outer wall of the material delivery pipe (55) is mounted with a solenoid valve (56).

10. The self-unloading pressing and forming device for automobile valve seat processing according to claim 9, characterized in that: The positioning frame (51) is L-shaped, the positioning frame (51) and the movable rod (53) form a sliding structure, the positioning frame (51) is welded to the lower mold base (1), and the material conveying pipe (55) is inclined.

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