An oil filter inner bottom plate punching forming device

Abstract

The application relates to the technical field of chassis punching forming, in particular to an inner chassis punching forming device for an oil filter, which comprises a supporting base, a die stamping table, a fixing support, an inner-groove upper pressing seat, a lifting assembly and an auxiliary stamping assembly. The inner chassis punching forming device for the oil filter of the application fills liquid nitrogen freezing liquid in the inner-groove upper pressing seat which is directly connected with the die, actively and extremely limits the cooling of the die, quickly shortens the cooling time from the traditional several minutes of natural heat dissipation, makes the stamping forming and the cooling process synchronous or continuous, improves the production efficiency, utilizes the deep cooling effect of the liquid nitrogen to sharply reduce the surface temperature of the blank, reduces the microscopic welding tendency with the die, the vibration assembly applies high-frequency micro-vibration to effectively overcome the static friction between the part and the die, which not only reduces the power requirement of the ejection mechanism, but also avoids the deformation risk of the thin-walled part in the demolding process.

Description

Technical Field

[0001] This application relates to the field of chassis punching and forming technology, and in particular to a chassis punching and forming device for an oil filter. Background Technology

[0002] An oil filter, also known as an oil strainer, is used to remove impurities such as dust, metal particles, carbon deposits, and soot particles from engine oil, protecting the engine. The base of the oil filter is a key component that bears pressure and connects with external equipment. The base punching process involves taking a flat metal blank and using a series of precise stamping actions to efficiently and accurately manufacture the inner base of the filter that meets the design requirements.

[0003] A search revealed that CN222999491U discloses a punching and forming device for the inner chassis of an oil filter. The device involves placing the inner chassis of the oil filter on top of a support ring. Then, through the coordinated use of a rotating disc, connecting rod, and rotating rod, a sliding L-shaped plate clamps and fixes the outer side of the inner chassis. This allows a multi-hole punch to punch holes in the inner chassis. By employing a rotating internal support clamping structure and multi-hole punching, the inner chassis of the oil filter is clamped during the punching process. This not only saves time in the multi-hole punching of the inner chassis but also improves the accuracy of clamping and fixing.

[0004] Regarding the aforementioned technologies, the inventors believe the following technical defects require improvement: During high-speed continuous stamping, the blank undergoes severe plastic deformation within the mold cavity. Most of the mechanical work in this process is converted into heat energy. Natural cooling is the most primitive method, which involves allowing the mold to remain stationary and relying on natural air convection for heat dissipation. However, this results in excessively long cooling times. Furthermore, under high pressure and high temperature, the microscopic protrusions at the contact points between the blank metal and the mold steel surface may undergo temporary welding, leading to difficulties in demolding. Utility Model Content

[0005] This application provides a punching and forming device for the inner chassis of an oil filter to improve the following technical problem: During high-speed continuous stamping, the blank undergoes severe plastic deformation within the mold cavity. Most of the mechanical work in this process is converted into heat energy. Natural cooling is the most primitive method, which involves letting the mold stand still and relying on natural air convection for heat dissipation, but this results in excessively long cooling times. Furthermore, under high pressure and high temperature, the microscopic protrusions at the contact points between the blank metal and the mold steel surface may undergo temporary welding, leading to difficulties in demolding.

[0006] This application provides a device for punching and forming the inner chassis of an oil filter, which adopts the following technical solution:

[0007] An oil filter inner chassis punching and forming device includes a support base, a die stamping table, a fixed bracket, an upper pressure seat with an inner groove, a lifting component, and an auxiliary stamping component. The die stamping table is slidably connected inside the support base, the fixed bracket is fixedly connected to the top of the support base, the upper pressure seat with an inner groove is movably connected to the opposite side of the fixed bracket for contacting the die stamping table, the lifting component is installed on the top of the upper pressure seat with an inner groove, the auxiliary stamping component is installed inside the upper pressure seat with an inner groove, and a vibration component is also provided on the side of the support base near the die stamping table.

[0008] The slot of the pressure seat with an inner groove is filled with liquid nitrogen cryogenic liquid.

[0009] In one feasible technical solution of this application, the auxiliary stamping assembly includes a boss, a power cylinder, and a chassis stamping seat. The boss is fixedly connected to the top of the upper pressure seat with an inner groove. The power cylinder is installed on the top of the boss. The chassis stamping seat is fixedly connected below the output end of the power cylinder, and the bottom of the chassis stamping seat abuts against the top surface of the mold stamping table.

[0010] In one feasible technical solution of this application, the lifting assembly includes a push cylinder, a connecting rod, a sliding block, and a linear shaft. The output end of the push cylinder is fixedly connected to the top of the connecting rod, the bottom surface of the connecting rod is fixedly connected to the top surface of the pressure seat with an inner groove, the sliding block is installed on the outside of the pressure seat with an inner groove, and the linear shaft passes through the sliding block and is fixedly connected to the surface of the support base.

[0011] In one feasible technical solution of this application, the vibration assembly includes a vertical vibration motor, an exciter, and vibration isolation springs. The vertical vibration motor is installed inside the support base, the exciter is installed above the output end of the vertical vibration motor, and the vibration isolation springs are arranged in a ring around the vertical vibration motor.

[0012] In one feasible technical solution of this application, a limiting disk is also installed on the top of the linear shaft, and the limiting disk is used to limit the stroke of the sliding block.

[0013] In one feasible technical solution of this application, the bottom of the upper pressure seat with inner groove abuts against the top of the support base, and the bottom diameter of the upper pressure seat with inner groove is equal to the inner diameter of the mold stamping table.

[0014] In one feasible technical solution of this application, the top of the pressure seat with inner groove is further provided with a one-way valve, a vent pipe and an exhaust pipe. The vent pipe and the exhaust pipe are symmetrically installed on both sides of the pressure seat with inner groove for supplying and venting air to the pressure seat with inner groove. The one-way valve is installed on the top outer side of the vent pipe and the exhaust pipe.

[0015] In one feasible technical solution of this application, the sliding block has a through hole that matches the size of the linear shaft.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] This device achieves active and extreme cooling of the mold by filling the inner groove pressure seat with liquid nitrogen cryogenic liquid, which is directly connected to the mold. This rapidly shortens the cooling time from the traditional several minutes of natural heat dissipation, allowing the stamping and cooling processes to be carried out simultaneously or continuously. This greatly improves equipment utilization and production efficiency. Utilizing the deep cooling effect of liquid nitrogen, the surface temperature of the blank drops sharply, which increases the brittleness of the material and reduces the tendency for micro-welding with the mold. The vibration component effectively overcomes the static friction between the part and the mold by applying high-frequency micro-vibration, changing the demolding process from a forced pull to a gentle drop. This not only reduces the force requirements of the ejection mechanism but also avoids the risk of deformation of thin-walled parts during demolding, further ensuring product quality and mold life. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the inner chassis punching and forming device for the oil filter according to an embodiment of this application.

[0020] Figure 2 This is a schematic diagram of the auxiliary stamping component in the embodiments of this application.

[0021] Figure 3 This is a longitudinal section view of the pressure seat with an inner groove in the embodiment of this application.

[0022] Figure 4 This is a schematic diagram of the structure of the vibration component in the embodiments of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Support base; 2. Die stamping table; 3. Fixed bracket; 4. Upper pressure seat with inner groove;

[0025] 5. Lifting assembly; 51. Push cylinder; 52. Connecting rod; 53. Sliding block; 54. Linear shaft;

[0026] 6. Auxiliary stamping components; 61. Boss; 62. Power cylinder; 63. Chassis stamping base;

[0027] 7. Vibration assembly; 71. Vertical vibration motor; 72. Vibrator; 73. Vibration isolation spring;

[0028] 8. Limiting plate; 9. Check valve; 10. Vent pipe; 11. Exhaust pipe; 12. Through hole; 40. Liquid nitrogen refrigerant. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0034] This application discloses a device for punching and forming the inner chassis of an oil filter. (Refer to...) Figures 1 to 4 The inner chassis punching and forming device for the oil filter includes a support base 1, a die stamping table 2, a fixed bracket 3, an upper pressure seat with an inner groove 4, a lifting component 5, and an auxiliary stamping component 6. The die stamping table 2 is slidably connected inside the support base 1, the fixed bracket 3 is fixedly connected to the top of the support base 1, the upper pressure seat with an inner groove 4 is movably connected to the opposite side of the fixed bracket 3 for contacting the die stamping table 2, the lifting component 5 is installed on the top of the upper pressure seat with an inner groove 4, the auxiliary stamping component 6 is installed inside the upper pressure seat with an inner groove 4, and a vibration component 7 is also provided on the side of the support base 1 near the die stamping table 2.

[0035] The slot of the inner tank pressure seat 4 is filled with liquid nitrogen cryogenic liquid 40.

[0036] By utilizing the physical property that liquid nitrogen absorbs a large amount of heat during vaporization, the mold is actively and forcibly subjected to extreme cooling, achieving online instant cooling and greatly improving production efficiency. More importantly, by maintaining the mold at a low temperature, the phenomenon of metal cold welding caused by high temperature is fundamentally suppressed, and the thermal stability of the mold dimensions is guaranteed, thereby improving product precision.

[0037] The auxiliary stamping assembly 6 includes a boss 61, a power cylinder 62, and a chassis stamping seat 63. The boss 61 is fixedly connected to the top of the upper pressure seat 4 with an inner groove. The power cylinder 62 is installed on the top of the boss 61. The chassis stamping seat 63 is fixedly connected below the output end of the power cylinder 62, and the bottom of the chassis stamping seat 63 abuts against the top surface of the mold stamping table 2.

[0038] The lifting assembly 5 includes a push cylinder 51, a connecting rod 52, a sliding block 53, and a linear shaft 54. The output end of the push cylinder 51 is fixedly connected to the top of the connecting rod 52, the bottom surface of the connecting rod 52 is fixedly connected to the top surface of the upper pressure seat 4 with an inner groove, the sliding block 53 is installed on the outside of the upper pressure seat 4 with an inner groove, and the linear shaft 54 ​​passes through the sliding block 53 and is fixedly connected to the surface of the support base 1.

[0039] The lifting assembly 5 is activated, pushing the cylinder 51 to move the upper pressure seat 4 with the inner groove downward along the linear axis 54 via the connecting rod 52. The sliding block 53 ensures smooth movement until the bottom of the upper pressure seat 4 with the inner groove is tightly closed with the mold stamping table 2, forming a closed cavity. The limit plate 8 precisely controls the downward stroke.

[0040] The vibration assembly 7 includes a vertical vibration motor 71, an exciter 72, and vibration isolation springs 73. The vertical vibration motor 71 is installed inside the support base 1, the exciter 72 is installed above the output end of the vertical vibration motor 71, and the vibration isolation springs 73 are arranged in a ring around the vertical vibration motor 71.

[0041] By utilizing high-frequency vibration to convert static friction between parts and mold into dynamic friction, the demolding resistance is significantly reduced. The demolding method is changed from forced ejection to gentle vibration, which greatly reduces the requirements for ejector force, effectively avoids deformation and damage of thin-walled parts during demolding, protects the mold surface, and improves yield and mold life.

[0042] A limit plate 8 is also installed on the top of the linear shaft 54, which is used to limit the travel of the sliding block 53.

[0043] The bottom of the upper pressure seat 4 with the inner groove abuts against the top of the support base 1, and the bottom diameter of the upper pressure seat 4 with the inner groove is equal to the inner diameter of the die stamping table 2.

[0044] The top of the pressure seat 4 with inner groove is also provided with a one-way valve 9, a ventilation pipe 10 and an exhaust pipe 11. The ventilation pipe 10 and the exhaust pipe 11 are symmetrically installed on both sides of the pressure seat 4 with inner groove for supplying and venting air to the pressure seat 4 with inner groove. The one-way valve 9 is installed on the top outer side of the ventilation pipe 10 and the exhaust pipe 11.

[0045] The sliding block 53 has a through hole 12 that matches the size of the linear shaft 54.

[0046] The general process of using the oil filter inner chassis punching and forming device according to the embodiments of this application is as follows:

[0047] Before punching, the lifting assembly 5 is activated, pushing the cylinder 51 to push the upper pressure seat 4 with an inner groove downward along the linear axis 54 via the connecting rod 52. The sliding block 53 ensures smooth movement until the bottom of the upper pressure seat 4 with an inner groove is tightly closed with the mold stamping table 2, forming a closed cavity. The limit plate 8 precisely controls the downward stroke, and the system can be evacuated or filled with protective gas through the ventilation pipe 10 and exhaust pipe 11 and the one-way valve 9 on them to optimize the cooling environment. At this time, the upper pressure seat 4 with an inner groove, filled with liquid nitrogen coolant 40, begins to powerfully pre-cool the closed mold;

[0048] During the stamping process, the power cylinder 62 drives the chassis stamping seat 63 to move downwards, performing forming processes such as punching and stretching on the metal blank placed on the die stamping table 2. At the moment when the blank undergoes plastic deformation and generates high temperature, the liquid nitrogen coolant 40 quickly absorbs and carries away the heat through the pressure seat 4 with the inner groove, keeping the die and workpiece at an extremely low temperature. This effectively prevents the die from heating up and reduces the tendency of the blank to "stick" to the die due to high temperature.

[0049] During demolding, the vibration assembly 7 is activated. The vertical vibration motor 71 drives the vibrator 72 to generate high-frequency micro-vibration, which is transmitted to the mold stamping table 2 through the support base 1. The vibration isolation spring 73 effectively prevents the vibration from spreading to the entire machine frame. The vibration energy effectively breaks the static friction between the molded part and the mold cavity, causing the part to loosen. The push cylinder 51 of the lifting assembly 5 pulls the upper pressure seat 4 with the inner groove upward along the linear axis 54 to reset. At the same time, the chassis stamping seat 63 may also move upward as an ejector pin, easily ejecting the loosened part and completing the demolding. After the mold stamping table 2 is cleaned, a new blank is fed in, and the device repeats the first to third steps above to achieve continuous and efficient automated production.

[0050] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A punching and forming device for the inner chassis of an oil filter, characterized in that, The device includes a support base (1), a die stamping table (2), a fixed bracket (3), an upper pressure seat with an inner groove (4), a lifting assembly (5), and an auxiliary stamping assembly (6). The die stamping table (2) is slidably connected inside the support base (1). The fixed bracket (3) is fixedly connected to the top of the support base (1). The upper pressure seat with an inner groove (4) is movably connected to the opposite side of the fixed bracket (3) for contacting the die stamping table (2). The lifting assembly (5) is installed on the top of the upper pressure seat with an inner groove (4). The auxiliary stamping assembly (6) is installed inside the upper pressure seat with an inner groove (4). A vibration assembly (7) is also provided on the side of the support base (1) near the die stamping table (2). The slot of the pressure seat (4) with inner groove is filled with liquid nitrogen cryogenic liquid (40).

2. The oil filter inner chassis punching and forming device according to claim 1, characterized in that, The auxiliary stamping assembly (6) includes a boss (61), a power cylinder (62), and a chassis stamping seat (63). The boss (61) is fixedly connected to the top of the upper pressure seat (4) with an inner groove. The power cylinder (62) is installed on the top of the boss (61). The chassis stamping seat (63) is fixedly connected below the output end of the power cylinder (62), and the bottom of the chassis stamping seat (63) abuts against the top surface of the mold stamping table (2).

3. The oil filter inner chassis punching and forming device according to claim 1, characterized in that, The lifting assembly (5) includes a push cylinder (51), a connecting rod (52), a sliding block (53), and a linear shaft (54). The output end of the push cylinder (51) is fixedly connected to the top of the connecting rod (52). The bottom surface of the connecting rod (52) is fixedly connected to the top surface of the upper pressure seat (4) with an inner groove. The sliding block (53) is installed on the outside of the upper pressure seat (4) with an inner groove. The linear shaft (54) passes through the sliding block (53) and is fixedly connected to the surface of the support base (1).

4. The oil filter inner chassis punching and forming device according to claim 1, characterized in that, The vibration assembly (7) includes a vertical vibration motor (71), an exciter (72), and vibration isolation springs (73). The vertical vibration motor (71) is installed on the inner side of the support base (1), the exciter (72) is installed above the output end of the vertical vibration motor (71), and the vibration isolation springs (73) are arranged in a ring around the vertical vibration motor (71).

5. The oil filter inner chassis punching and forming device according to claim 3, characterized in that, The top of the linear shaft (54) is also equipped with a limiting disk (8), which is used to limit the stroke of the sliding block (53).

6. The oil filter inner chassis punching and forming device according to claim 1, characterized in that, The bottom of the upper pressure seat (4) with an inner groove abuts against the top of the support base (1), and the bottom diameter of the upper pressure seat (4) with an inner groove is equal to the inner diameter of the mold stamping table (2).

7. The oil filter inner chassis punching and forming device according to claim 6, characterized in that, The top of the pressure seat (4) with inner groove is also provided with a one-way valve (9), a ventilation pipe (10) and an exhaust pipe (11). The ventilation pipe (10) and the exhaust pipe (11) are symmetrically installed on both sides of the pressure seat (4) with inner groove for supplying and venting air to the pressure seat (4) with inner groove. The one-way valve (9) is installed on the top outer side of the ventilation pipe (10) and the exhaust pipe (11).

8. The oil filter inner chassis punching and forming device according to claim 3, characterized in that, The sliding block (53) has a through hole (12) that matches the size of the linear shaft (54).

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