Return spring seat forming equipment of vacuum booster

Abstract

The utility model discloses a vacuum booster return spring seat forming device, which comprises a horizontal U-shaped frame, a bedplate, support plates and a hydraulic cylinder, a plurality of support plates are connected between the bedplate and the bottom wall of the horizontal U-shaped frame, the hydraulic cylinder is fixedly arranged on the top wall of the horizontal U-shaped frame, two stamping bottom plates are arranged on the bedplate, and the two stamping bottom plates are arranged on the bedplate. Two stamping bottom plates are arranged on the left side of the platen, guide supporting columns are arranged on the two stamping bottom plates, and a plurality of indentation assemblies are arranged on the portion, on the left side of the platen, of the stamping bottom plate. The indentation assemblies on the stamping bottom plate on the left side are matched with the bottom face of the stamping top plate on the left side to conduct first-time stamping on steel bar raw materials; the forming hole in the stamping bottom plate on the right side and the forming vertical plate are matched with the extrusion assembly on the stamping top plate on the right side to conduct secondary stamping on the steel bar raw material, forming machining of the return spring seat of the vacuum booster can be completed through two times of stamping in total, the forming machining procedure of the return spring seat is simplified, and operation becomes easier and more convenient.

Description

Technical Field

[0001] This utility model relates to a return spring seat forming equipment for a vacuum booster. Background Technology

[0002] Vacuum boosters are crucial components of automotive braking systems, primarily used to assist drivers in applying braking force, reducing the effort required to depress the brake pedal, and simultaneously improving braking efficiency and safety. The return spring seat is another key component of the vacuum booster, ensuring that the internal spring returns to its correct position after braking, thus guaranteeing the brake pedal's return to its initial position. Existing vacuum booster return spring seats typically require multiple processes such as stamping, punching, and bending during molding, making the molding process cumbersome and inconvenient. Therefore, it is essential to develop a vacuum booster return spring seat molding machine to address these issues. Summary of the Invention

[0003] The purpose of this invention is to provide a return spring seat forming device for a vacuum booster, so as to solve the problems mentioned in the background art.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] A return spring seat forming device for a vacuum booster includes a horizontal U-shaped frame, a platform, a support plate, and a hydraulic cylinder. Multiple support plates are connected between the platform and the bottom wall of the horizontal U-shaped frame. The hydraulic cylinder is fixedly mounted on the top wall of the horizontal U-shaped frame. The platform has two stamping base plates, each with a guide pillar. The stamping base plate on the left side of the platform has multiple indentation components, and the stamping base plate on the right side of the platform has multiple forming holes. Multiple forming uprights are arranged in a ring at equal intervals around the edges of the forming holes. A lifting plate is connected to the movable end of the hydraulic cylinder. Two stamping top plates are located below the lifting plate, and multiple connecting rods connect the two stamping top plates to the lifting plate. Multiple extrusion components are located on the stamping top plate on the right side of the lifting plate.

[0006] Preferably, the indentation assembly includes an outer pressure ring, which is fixed to the stamping base plate on the left side of the table. The inner wall of the outer pressure ring is provided with a plurality of notched pressure strips at equal intervals in a ring. An inner pressure ring is provided at the center of the inner side of the outer pressure ring. The outer side of the inner pressure ring is provided with a plurality of arc-shaped pressure strips at equal intervals in a ring. The arc-shaped pressure strips and the inner pressure ring are both fixed to the stamping base plate on the left side of the table.

[0007] Preferably, the extrusion assembly includes an extrusion column, which is fixed on the stamping top plate on the right side of the lifting plate. The extrusion column is provided with arc-shaped extrusion blocks and an extrusion disc. The extrusion disc is fixed at the center of the bottom surface of the extrusion column. There are multiple arc-shaped extrusion blocks, which are arranged in a ring at equal intervals on the outside of the extrusion disc.

[0008] Preferably, there are multiple guide pillars on the stamping base plate, arranged in two rows on the stamping base plate. The stamping base plate is provided with a recycling hole corresponding to the guide pillar. The guide pillar is slidably connected to the corresponding recycling hole. A spring is provided between the guide pillar and the inner wall of the recycling hole. An annular groove is provided on the upper side wall of the guide pillar.

[0009] Preferably, buffer components 1 are provided on both sides of the platform, and buffer components 2 are provided on both sides of the lifting plate. Buffer component 1 includes mounting plate 1, which is mounted on the platform. Buffer column is fixedly mounted on mounting plate 1, and buffer cylinder 1 is slidably mounted on buffer column. A spring is provided between buffer cylinder 1 and mounting plate 1. Buffer component 2 includes mounting plate 2, which is mounted on the lifting plate. Buffer cylinder 2 is fixedly mounted on mounting plate 2.

[0010] Preferably, positioning holes are provided on both sides of the stamping base plate, and positioning posts corresponding to the positioning holes are provided on both sides of the stamping top plate.

[0011] The beneficial effects of this utility model are as follows: This utility model uses the indentation component on the left stamping base plate in conjunction with the bottom surface of the left stamping top plate to perform the first stamping of the steel strip material, and uses the forming hole and forming plate on the right stamping base plate in conjunction with the extrusion component on the right stamping top plate to perform the second stamping of the steel strip material. The forming process of the return spring seat of the vacuum booster can be completed by a total of two stampings, which simplifies the forming process of the return spring seat and makes the operation more convenient. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below, but this is not a limitation on the scope of protection of this utility model.

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

[0014] Figure 2 This utility model Figure 1 Schematic diagram of the installation of the central guide column on the stamping base plate;

[0015] Figure 3 This utility model Figure 1 A schematic diagram of the stamping base plate on the left side of the middle section;

[0016] Figure 4 This utility model Figure 3 Schematic diagram of the structure of the inner and outer pressure rings;

[0017] Figure 5 This utility model Figure 1 A schematic diagram of the stamping base plate on the right side of the middle section;

[0018] Figure 6 This utility model Figure 5 Schematic diagram of the structure at the edge of the forming hole;

[0019] Figure 7 This utility model Figure 1 A schematic diagram of the stamping top plate on the right side of the middle section;

[0020] Figure 8 This utility model Figure 7 Schematic diagram of the structure of the extrusion assembly;

[0021] Figure 9 This utility model Figure 1 Schematic diagrams of the structure of buffer component one and buffer component two;

[0022] Figure 10 This is a schematic diagram of the structure of the return spring seat manufactured according to this utility model;

[0023] Figure 11 This utility model Figure 10 A cross-sectional view of the return spring seat;

[0024] Figure 12 This is a schematic diagram of a steel bar after the raw material for stamping is produced according to this utility model.

[0025] Figure 13 This is a schematic diagram of another state of the steel bar after the raw material for stamping is used in this utility model.

[0026] In the diagram: 11. Horizontal U-shaped frame; 12. Platform; 13. Support plate; 14. Stamping base plate; 15. Guide column; 16. Hydraulic cylinder; 17. Lifting plate; 18. Stamping top plate; 19. Connecting rod; 20. Positioning column; 21. Buffer assembly one; 22. Buffer assembly two; 23. Recovery hole; 24. Positioning hole; 25. Indentation assembly; 26. Outer pressure ring; 27. Notched pressure strip; 28. Arc-shaped pressure strip; 29. ​​Inner pressure ring; 30. Forming hole; 31. Forming upright plate; 32. Extrusion assembly; 33. Extrusion column; 34. Arc-shaped extrusion block; 35. Extrusion disc; 36. Mounting plate one; 37. Buffer column; 38. Buffer cylinder one; 39. Mounting plate two; 40. Buffer cylinder two. Detailed Implementation

[0027] See Figures 1 to 13 The illustrated vacuum booster return spring seat forming equipment includes a horizontal U-shaped frame 11, a platform 12, support plates 13, and a hydraulic cylinder 16. Multiple support plates 13 are connected between the platform 12 and the bottom wall of the horizontal U-shaped frame 11, and the support plates 13 are fixedly connected to both the bottom wall of the horizontal U-shaped frame 11 and the platform 12. The hydraulic cylinder 16 is fixedly mounted on the top wall of the horizontal U-shaped frame 11. Two stamping base plates 14 are provided on the platform 12, and the stamping base plates 14 are fixedly mounted on the platform 12 by bolts. Guide pillars 15 are provided on both stamping base plates 14. Multiple indentation components 25 are provided on the stamping base plate 14 on the left side of the platform 12, and multiple forming holes 30 are provided on the stamping base plate 14 on the right side of the platform 12. The forming holes 30 are through holes in the stamping base plates 14. The platform 12 has various forming components. The through holes corresponding to the forming holes 30 are located directly below the forming holes 30. Waste material falling off during the forming process can fall onto the bottom wall of the horizontal U-shaped frame 11 through the forming holes 30 and the through holes on the platform 12, thereby separating the waste material from the forming return spring seat. Multiple forming upright plates 31 are provided in a ring at equal intervals at the edge of the forming holes 30. The forming upright plates 31 are fixed on the stamping base plate 14. A lifting plate 17 is connected to the movable end of the hydraulic cylinder 16. Two stamping top plates 18 are provided on the lower side of the lifting plate 17. Multiple connecting rods 19 are connected between the two stamping top plates 18 and the lifting plate 17. The two ends of the connecting rods 19 are fixedly connected to the lifting plate 17 and the stamping top plate 18, respectively. Multiple extrusion components 32 are provided on the stamping top plate 18 on the right side of the lifting plate 17.

[0028] Furthermore, the indentation assembly 25 includes an outer pressure ring 26, which is fixed to the stamping base plate 14 on the left side of the platform 12. The inner wall of the outer pressure ring 26 has multiple notched pressure strips 27 arranged in a ring at equal intervals. Each notched pressure strip 27 consists of two metal strips, and the distance between the two metal strips corresponds to the width of the notch on the edge of the return spring seat. An inner pressure ring 29 is located at the center of the inner side of the outer pressure ring 26, and multiple arc-shaped pressure strips 28 are arranged in a ring at equal intervals on the outer side of the inner pressure ring 29. The metal strips are pressed... Figure 4 The arc-shaped pressure strip 28 can be obtained by bending the edge contour of the arc-shaped pressure strip 28. The arc-shaped pressure strip 28 and the inner pressure ring 29 are both fixed on the stamping base plate 14 on the left side of the platform 12. When the stamping base plate 14 and the stamping top plate 18 on the left side stamp the steel strip material, as shown in the platform 12, the outer pressure ring 26, the notched pressure strip 27, the arc-shaped pressure strip 28 and the inner pressure ring 29 will stamp corresponding indentations on the steel strip material. The steel at the indentation is pressed very thin. With appropriate external force, the stamped steel can be separated from the steel strip material along the indentation.

[0029] Furthermore, the extrusion assembly 32 includes an extrusion column 33, which is fixed to the stamping top plate 18 on the right side of the lifting plate 17. The extrusion column 33 is provided with arc-shaped extrusion blocks 34 and an extrusion disc 35. The extrusion disc 35 is fixed at the center of the bottom surface of the extrusion column 33. There are multiple arc-shaped extrusion blocks 34, which are arranged in a ring at equal intervals on the outside of the extrusion disc 35. After the steel bar raw material is stamped by the stamping bottom plate 14 and the stamping top plate 18 on the left side, the steel bar moves under the action of the external feeding device, so that the steel bar raw material that has passed the first stamping is partially... The steel strip is moved between the right-side stamping base plate 14 and stamping top plate 18. After the right-side stamping base plate 14 and stamping top plate 18 stamp the steel strip material, the extrusion column 33 extrudes the steel strip material into the forming hole 30, thereby causing the steel to bulge into the forming hole 30, thus forming the cylindrical part of the return spring seat. The part between the indentation formed by the outer pressure ring 26 on the steel strip material and the cylindrical part is the edge part. When the extrusion column 33 extrudes the steel strip material, the arc-shaped extrusion block 34 and the extrusion disc 35 extrude the corresponding part of the steel sheet along the indentation, thereby forming the arc-shaped hole and the center hole of the return spring seat.

[0030] Furthermore, the stamping base plate 14 has multiple guide pillars 15 arranged in two rows on the stamping base plate 14. The stamping base plate 14 is provided with recycling holes 23 corresponding to the guide pillars 15. The guide pillars 15 are slidably connected to the corresponding recycling holes 23. A spring is provided between the guide pillars 15 and the inner wall of the recycling holes 23. An annular groove is provided on the upper side wall of the guide pillars 15. The steel strip material is placed between the two rows of guide pillars 15. The two sides of the steel strip material are respectively restricted in the annular grooves on the two rows of guide pillars 15, so that the steel strip material can be supported above the stamping base plate 14 by using the guide pillars 15.

[0031] Furthermore, buffer components 21 are provided on both sides of the platform 12, and buffer components 22 are provided on both sides of the lifting plate 17. Buffer component 21 includes a mounting plate 36, which is mounted on the platform 12. A buffer post 37 is fixedly mounted on the mounting plate 36, and a buffer cylinder 38 is slidably mounted on the buffer post 37. A spring is provided between the buffer cylinder 38 and the mounting plate 36. Buffer component 22 includes a mounting plate 39, which is mounted on the lifting plate 17. 7. A buffer cylinder 40 is fixedly installed on the mounting plate 39. The hydraulic cylinder 16 extends to control the lifting plate 17 to move down, thereby causing the stamping top plate 18 to move down as well. When the steel strip material between the stamping bottom plate 14 and the stamping top plate 18 is stamped, the buffer cylinder 40 descends so that the buffer cylinder 38 is inserted into the buffer cylinder 40. Then the buffer cylinder 38 and the buffer cylinder 40 move down together. The spring between the buffer cylinder 38 and the mounting plate 36 is gradually compressed. The spring force can buffer the downward pressing process.

[0032] Furthermore, both sides of the stamping base plate 14 are provided with positioning holes 24, and both sides of the stamping top plate 18 are provided with positioning posts 20 corresponding to the positioning holes 24. When the positioning posts 20 are aligned with the positioning holes 24, and the positioning posts 20 can be inserted into the corresponding positioning holes 24 when the stamping base plate 14 is pressed down, it means that the stamping base plate 14 and the stamping top plate 18 below are in their respective installation positions without any positional offset.

[0033] The working principle of this utility model is as follows: When forming the return spring seat of the vacuum booster, the steel strip material is placed between two rows of guide pillars 15 on the stamping base plate 14, so that the two sides of the steel strip material are respectively restricted in the annular grooves on the two rows of guide pillars 15. The steel strip material is transported by an external feeding device. When the steel strip material is transported between the left stamping base plate 14 and the stamping top plate 18, the hydraulic cylinder 16 is activated to extend, causing the lifting plate 17 to descend, thereby causing the stamping top plate 18 to descend accordingly. After the bottom surface of the left stamping top plate 18 contacts the steel strip material, it presses the steel strip and continues to move downward. At this time, the guide pillars 15 will move into the recovery hole 23 until the steel strip material is pressed between the left stamping base plate 14 and the stamping top plate 18. The indentation component 25 on the left stamping base plate 14 forms an indentation on the steel strip material as shown in the table 12.

[0034] Then, the hydraulic cylinder 16 is activated to retract, causing the lifting plate 17 and the stamping top plate 18 to reset. The steel bar is then fed a distance via an external feeding device, aligning the indentations on the steel bar with the forming holes 30 on the right-side stamping top plate 18. Feeding is paused, and then the hydraulic cylinder 16 is activated to extend, causing the lifting plate 17 to descend, which in turn lowers the stamping top plate 18. The extrusion assembly 32 on the right-side stamping top plate 18 contacts the steel bar and presses it down, continuing to move downwards until the steel bar is pressed firmly against the right-side stamping top plate 18. Between the bottom plate 14 and the top plate 18, the extrusion column 33 presses the steel strip into the forming hole 30, causing the steel to bulge inwards, thus forming the cylindrical part of the return spring seat. The part between the indentation formed by the outer pressure ring 26 on the steel strip and the cylindrical part is the edge. When the extrusion column 33 extrudes the steel strip, the arc-shaped extrusion block 34 and the extrusion disc 35 extrude the corresponding steel sheet along the indentation, thus forming the arc-shaped hole and the center hole of the return spring seat. At the same time, the steel strip is formed... The forming plate 31 at the edge of hole 30 pushes the part of the steel strip material corresponding to the connecting piece. The two sides of the connecting piece separate from the steel strip material along the indentation. The connecting piece is then pushed upwards and folded up by the forming plate 31. At this point, the cylindrical part, edge part, connecting piece, notch, arc-shaped hole and center hole of the return spring seat have been formed. Only the indentation formed by the outer pressure ring 26 remains between the return spring seat and the steel strip material. Subsequently, it is only necessary to press the return spring seat with appropriate force to separate it from the steel strip material along the indentation formed by the outer pressure ring 26. Once separated, the formed return spring seat can be removed. The stamping base plate 14 on the left is equipped with an indentation component 25, which works with the bottom surface of the stamping top plate 18 on the left to perform the first stamping of the steel strip material. The forming hole 30 and the forming upright plate 31 on the stamping base plate 14 on the right work with the extrusion component 32 on the stamping top plate 18 on the right to perform the second stamping of the steel strip material. A total of two stampings are required to complete the forming process of the return spring seat of the vacuum booster, which simplifies the forming process of the return spring seat and makes the operation more convenient.

[0035] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A return spring seat forming device for a vacuum booster, comprising a horizontal U-shaped frame, a platform, support plates, and a hydraulic cylinder, wherein multiple support plates are connected between the platform and the bottom wall of the horizontal U-shaped frame, and the hydraulic cylinder is fixedly mounted on the top wall of the horizontal U-shaped frame, characterized in that: The platform is provided with two stamping base plates, and each stamping base plate is provided with a guide pillar. The stamping base plate on the left side of the platform is provided with multiple indentation components, and the stamping base plate on the right side of the platform is provided with multiple forming holes. Multiple forming upright plates are provided in a ring at equal intervals around the edge of the forming holes. A lifting plate is connected to the movable end of the hydraulic cylinder. Two stamping top plates are provided on the lower side of the lifting plate. Multiple connecting rods are connected between the two stamping top plates and the lifting plate. Multiple extrusion components are provided on the stamping top plate on the right side of the lifting plate.

2. The return spring seat forming apparatus of a vacuum booster according to claim 1, characterized by: The indentation assembly includes an outer pressure ring, which is fixed to the stamping base plate on the left side of the table. The inner wall of the outer pressure ring is provided with multiple notched pressure strips at equal intervals in a ring. An inner pressure ring is provided at the center of the inner side of the outer pressure ring. The outer side of the inner pressure ring is provided with multiple arc-shaped pressure strips at equal intervals in a ring. The arc-shaped pressure strips and the inner pressure ring are both fixed to the stamping base plate on the left side of the table.

3. The return spring seat forming apparatus of a vacuum booster according to claim 1, characterized by: The extrusion assembly includes an extrusion column, which is fixed on the stamping top plate on the right side of the lifting plate. The extrusion column is provided with arc-shaped extrusion blocks and an extrusion disc. The extrusion disc is fixed at the center of the bottom surface of the extrusion column. There are multiple arc-shaped extrusion blocks, which are arranged in a ring at equal intervals on the outside of the extrusion disc.

4. The return spring seat forming apparatus of a vacuum booster according to claim 1, characterized by: The stamping base plate has multiple guide pillars arranged in two rows. The stamping base plate has recycling holes corresponding to the guide pillars. The guide pillars are slidably connected to the corresponding recycling holes. A spring is provided between the guide pillars and the inner wall of the recycling holes. An annular groove is provided on the upper side wall of the guide pillars.

5. The return spring seat forming apparatus of a vacuum booster according to claim 1, characterized by: Both sides of the platform are provided with buffer components 1, and both sides of the lifting plate are provided with buffer components 2. Buffer component 1 includes mounting plate 1, which is set on the platform. A buffer column is fixedly set on the mounting plate 1, and a buffer cylinder 1 is slidably set on the buffer column. A spring is provided between the buffer cylinder 1 and the mounting plate 1. Buffer component 2 includes mounting plate 2, which is set on the lifting plate. A buffer cylinder 2 is fixedly set on the mounting plate 2.

6. The return spring seat forming equipment for a vacuum booster according to claim 1, characterized in that: Positioning holes are provided on both sides of the stamping base plate, and positioning pins corresponding to the positioning holes are provided on both sides of the stamping top plate.

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