Stamping and trimming die for pump body of oil pump for automobile

Abstract

The utility model discloses an automobile oil pump body stamping trimming die which comprises a base, the top of the base is connected with the same placing plate through two symmetrically-arranged supporting plates, the placing plate is connected with a top plate through a plurality of sets of hydraulic rods, two die holders are arranged on the top of the placing plate, and a pump body to be machined is placed on the die holders. The die holder is connected with an auxiliary abutting mechanism, multiple sets of cutters are fixedly connected to the bottom of the top plate, the auxiliary abutting mechanism comprises fixing seats fixedly connected to the outer side wall of the die holder, air cylinders are fixedly connected to the tops of the two fixing seats, push rods are fixedly connected to the output ends of the two air cylinders, and abutting plates are fixedly installed at the ends of the push rods. By means of the die holder precisely matched with the size of the pump body and the auxiliary abutting mechanism, high-precision positioning of the pump body can be achieved, position deviation is effectively avoided, and therefore the trimming precision is guaranteed, the quality and the qualified rate of products are greatly improved, the defective rate is reduced, and reliable quality guarantee is provided for production of automobile oil pumps.

Description

Technical Field

[0001] This utility model relates to the field of pump body stamping and trimming technology, and in particular to a stamping and trimming mold for an automotive oil pump body. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process metal or non-metal into parts.

[0003] In traditional stamping and trimming operations, precise positioning of the oil pump body on the mold is difficult. Due to the complex shape of the pump body, ordinary molds lack positioning devices specifically designed for its structural characteristics. This leads to frequent deviations in the pump body's position during stamping and trimming. This not only affects the trimming accuracy, resulting in non-standard dimensions of the trimmed pump body, but also causes dimensional deviations that may prevent tight fit with other components during subsequent assembly, reducing the overall performance and stability of the oil pump. The vibrations generated during stamping are directly transmitted to the base and surrounding equipment, which can affect the equipment's lifespan over time. Furthermore, it generates significant noise and pollutes the working environment. On the other hand, the top plate acts directly on the pump body during stamping without any cushioning device, making it prone to damage and affecting product quality. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a stamping and trimming die for an automotive oil pump body.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A stamping and trimming die for an automotive oil pump body includes a base. The top of the base is connected to the same placement plate via two symmetrically arranged support plates. The placement plate is connected to a top plate via multiple sets of hydraulic rods. The top of the placement plate is provided with two mold bases, which together support the pump body to be processed. The mold bases are connected to an auxiliary clamping mechanism. Multiple sets of cutting blades are fixedly connected to the bottom of the top plate.

[0007] Preferably, the auxiliary clamping mechanism includes a fixed seat fixedly connected to the outer wall of the mold base, a cylinder fixedly connected to the top of each of the two fixed seats, a push rod fixedly connected to the output end of each of the two cylinders, and a clamping plate fixedly installed at the end of the push rod.

[0008] Preferably, a fixing plate is fixedly connected to the top of the placement plate, and a vertically arranged support rod is fixedly connected to the top of the fixing plate, with the top of the support rod contacting the tail of the pump body to be processed.

[0009] Preferably, a buffer plate is provided at the bottom of the placement plate, and multiple sets of shock-absorbing springs are provided between the buffer plate and the base.

[0010] Preferably, the bottom of the top plate is provided with multiple sets of buffer springs.

[0011] Preferably, the mold base is adapted to the size of the pump body to be processed.

[0012] This utility model has the following advantages compared with the prior art:

[0013] 1. This utility model, through a mold base that is precisely matched to the size of the pump body to be processed and an auxiliary clamping mechanism, can achieve high-precision positioning of the pump body to be processed, effectively avoid positional deviation, thereby ensuring trimming accuracy, greatly improving product quality and pass rate, reducing defect rate, and providing reliable quality assurance for the production of automotive oil pumps.

[0014] 2. This utility model can withstand greater impact and pressure during operation, maintain a stable working state, reduce processing errors caused by mold shaking or instability, and improve the reliability of the production process.

[0015] 3. This utility model, through multiple sets of shock-absorbing springs between the buffer plate at the bottom of the placement plate and the base, and multiple sets of buffer springs at the bottom of the top plate, can effectively absorb and buffer the impact force during stamping, reduce damage to the mold structure itself, and extend the service life of the mold; it avoids excessive impact of the cutter on the pump body to be processed, prevents scratches, deformation and other defects on the surface of the pump body to be processed, and further improves product quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a stamping and trimming die for an automotive oil pump body proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a stamping and trimming die for an automotive oil pump body proposed in this utility model;

[0018] Figure 3 This utility model provides a schematic diagram of the connection between the base and auxiliary clamping mechanism of a stamping and trimming die for an automotive oil pump body.

[0019] Figure 4 This is a schematic diagram of the mold base structure of a stamping and trimming die for an automotive oil pump body proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the pump body structure to be processed according to the present invention.

[0021] In the diagram: 1. Base; 2. Support plate; 3. Placement plate; 4. Hydraulic rod; 5. Top plate; 6. Mold base; 7. Cutting knife; 8. Fixed base; 9. Cylinder; 10. Push rod; 11. Clamping plate; 12. Fixed plate; 13. Support rod; 14. Buffer plate; 15. Shock-absorbing spring; 16. Buffer spring; 17. Pump body to be processed. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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 utility model 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 utility model.

[0024] Reference Figures 1-5 This embodiment provides a stamping and trimming die for an automotive oil pump body, which includes a base 1. The base 1 is supported as a base. The top of the base 1 is connected to the same placement plate 3 by two symmetrically arranged support plates 2, forming a stable working platform. The placement plate 3 is connected to a top plate 5 by multiple sets of hydraulic rods 4. The hydraulic rods 4 can precisely control the lifting and lowering of the top plate 5, providing power support for the stamping and trimming operation. The top of the placement plate 3 is provided with two mold bases 6, which together support the pump body 17 to be processed. The mold bases 6 are adapted to the size of the pump body 17 to be processed. The adapted mold bases 6 can achieve precise positioning according to the shape characteristics of the pump body 17 to be processed, avoiding positional deviation of the pump body 17 to be processed during stamping and trimming, ensuring trimming accuracy, and making the size of the pump body 17 to be processed after trimming meet the standard. This is conducive to subsequent close cooperation with other components, improving the overall performance and stability of the oil pump. The mold base 6 is connected to an auxiliary clamping mechanism, and multiple sets of cutters 7 are fixedly connected to the bottom of the top plate 5.

[0025] The auxiliary clamping mechanism includes a fixed seat 8 fixedly connected to the outer wall of the mold base 6. A cylinder 9 is fixedly connected to the top of each of the two fixed seats 8. A push rod 10 is fixedly connected to the output end of each of the two cylinders 9. A clamping plate 11 is fixedly installed at the end of the push rod 10. After the pump body 17 to be processed is placed on the mold base 6, the cylinder 9 drives the push rod 10, so that the clamping plate 11 firmly clamps the pump body 17 to be processed from the side, effectively preventing the pump body 17 to be processed from shifting during the stamping process, ensuring accurate trimming position, improving production efficiency, reducing the risk of mold damage, and reducing production costs.

[0026] A fixing plate 12 is fixedly connected to the top of the placement plate 3. A vertically arranged support rod 13 is fixedly connected to the top of the fixing plate 12. The top of the support rod 13 contacts the tail of the pump body 17 to be processed. Since the pump body of an automotive oil pump is usually long, the tail is prone to drooping due to lack of support during stamping and trimming. The support rod 13 of this mold provides reliable support for the tail of the pump body 17 to be processed, ensuring the overall stability of the pump body 17 to be processed during the stamping and trimming process, making the trimming more uniform and precise, and improving product quality.

[0027] The bottom of the placement plate 3 is provided with a buffer plate 14, and multiple sets of shock-absorbing springs 15 are provided between the buffer plate 14 and the base 1.

[0028] The bottom of the top plate 5 is equipped with multiple sets of buffer springs 16. The buffer springs 16 play a buffering role during the stamping process, preventing the cutter 7 from excessively impacting the pump body 17 to be processed, thereby improving product quality.

[0029] The specific working principle of this utility model is as follows:

[0030] In the initial state before starting the mold, the operator carefully places the pump body 17 to be processed on the mold base 6. Since the mold base 6 and the pump body 17 are precisely matched in size, the pump body 17 can be quickly and accurately positioned in the preset position. Then, the auxiliary clamping mechanism starts to operate. After receiving the command from the control system, the piston inside the cylinder 9, which is fixedly connected to the fixing seat 8 on the outer wall of the mold base 6, starts to move. The power is transmitted to the clamping plate 11 through the push rod 10. The clamping plate 11 applies uniform and stable pressure from the side of the pump body 17 to be processed, firmly clamping the pump body 17 to the mold base 6, ensuring that the pump body 17 will not be displaced during the entire stamping and trimming process.

[0031] At this time, the hydraulic system is activated, and the hydraulic rod 4 drives the top plate 5 to move downwards gradually. Multiple sets of cutters 7, which are fixedly connected to the bottom of the top plate 5, gradually approach the pump body 17 to be processed as the top plate 5 descends. When the cutters 7 contact the part of the pump body 17 to be processed that needs to be trimmed, under the continuous pressure applied by the top plate 5, the cutters 7 precisely cut the edge of the pump body 17 to be processed, completing the trimming operation. During this process, the vertical support rod 13 on the fixed plate 12 fixedly connected to the top of the placement plate 3 always provides stable support for the tail of the pump body 17 to be processed, ensuring that the pump body 17 to be processed is evenly stressed when subjected to the stamping force, and avoiding sagging due to lack of support at the tail, which would affect the trimming quality.

[0032] After the trimming is completed, the hydraulic system reverses its operation, and the hydraulic rod 4 drives the top plate 5 to rise and reset. At the same time, the cylinder 9 also reverses its operation, causing the clamping plate 11 to loosen its clamping of the pump body 17 to be processed. The operator can then remove the trimmed pump body 17 to be processed and proceed to the next round of processing.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A stamping and trimming die for an automotive oil pump body, comprising a base (1), characterized in that, The base (1) is connected to the same placement plate (3) by two symmetrically arranged support plates (2) at the top. The placement plate (3) is connected to the top plate (5) by multiple sets of hydraulic rods (4). The top of the placement plate (3) is provided with two mold bases (6). The two mold bases (6) jointly support the pump body (17) to be processed. The mold bases (6) are connected to an auxiliary clamping mechanism. Multiple sets of cutters (7) are fixedly connected to the bottom of the top plate (5).

2. The stamping and trimming die for an automotive oil pump body according to claim 1, characterized in that, The auxiliary clamping mechanism includes a fixed seat (8) fixedly connected to the outer wall of the mold base (6), and a cylinder (9) fixedly connected to the top of each of the two fixed seats (8). A push rod (10) is fixedly connected to the output end of each of the two cylinders (9), and a clamping plate (11) is fixedly installed at the end of the push rod (10).

3. The stamping and trimming die for an automotive oil pump body according to claim 1, characterized in that, The top of the placement plate (3) is fixedly connected to a fixing plate (12), and the top of the fixing plate (12) is fixedly connected to a vertically arranged support rod (13). The top of the support rod (13) is in contact with the tail of the pump body (17) to be processed.

4. The stamping and trimming die for an automotive oil pump body according to claim 1, characterized in that, The bottom of the placement plate (3) is provided with a buffer plate (14), and multiple sets of shock-absorbing springs (15) are provided between the buffer plate (14) and the base (1).

5. The stamping and trimming die for an automotive oil pump body according to claim 1, characterized in that, The bottom of the top plate (5) is provided with multiple sets of buffer springs (16).

6. The stamping and trimming die for an automotive oil pump body according to claim 1, characterized in that, The mold base (6) is adapted to the size of the pump body (17) to be processed.

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