A die changeable vertical press

Abstract

The application discloses a die changeable vertical stamping equipment, and relates to the technical field of stamping equipment, which comprises a bottom plate, a mounting stand is fixedly connected to the upper end face of the bottom plate, two fixed plates are fixedly connected to the lower end sides of the mounting stand, a supporting shaft is rotatably connected between the two fixed plates, four bottom base blocks are fixedly connected to the supporting shaft, T-shaped mounting blocks are fixedly connected to the four faces of the four bottom base blocks, lower molds are fixedly connected to the T-shaped mounting blocks through screws, and a bottom die switching mechanism for driving the supporting shaft to rotate to change the die is arranged on the fixed plate.

Description

Technical Field

[0001] This invention relates to the field of stamping equipment technology, specifically a vertical stamping equipment with interchangeable molds. Background Technology

[0002] In the automotive seat component manufacturing industry, a large number of structural and functional parts, such as seat frames, slide rails, adjusters, connecting brackets, and various reinforcing plates, are generally formed using stamping processes. Because seat assemblies involve a wide variety of parts with diverse structures, vertical stamping equipment is frequently used in production to complete processes such as blanking, punching, bending, and forming. To adapt to increasingly diverse market demands, the same production line often needs to frequently switch between different product models, which places high demands on the die-changing efficiency of the stamping equipment.

[0003] However, conventional vertical stamping equipment is usually fastened to the worktable by multiple T-slot bolts or pressure plates. When changing molds, it is necessary to manually loosen and disassemble the fasteners one by one, then lift the old mold away, lift in the new mold, and repeatedly perform position alignment, leveling adjustment and centering and locking. This mold changing method leads to a significant increase in equipment downtime, making it difficult to achieve rapid switching between molds of different product models, which seriously restricts the overall efficiency in flexible production scenarios with multiple varieties and small batches.

[0004] To overcome the above problems, we provide a vertical stamping machine with a changeable die to solve the aforementioned issues. Summary of the Invention

[0005] The purpose of this invention is to provide a vertical stamping equipment with interchangeable molds to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A vertical stamping machine with interchangeable molds includes a base plate, a mounting bracket fixedly connected to the upper surface of the base plate, and fixed plates fixedly connected to both sides of the lower end of the mounting bracket. A support shaft is rotatably connected between the two fixed plates, and four bottom base blocks are fixedly connected to the support shaft. T-shaped mounting blocks are fixedly connected to the four sides of each bottom base block, and a lower mold is fixedly connected to the T-shaped mounting blocks by screws. The fixed plate is provided with a bottom mold switching mechanism for driving the support shaft to rotate and change the mold. The upper end of each mounting frame column is fixedly connected to a slide rail, and a movable plate is slidably connected between two slide rails on the same side. The upper end of the mounting frame is provided with an adjustment component for adjusting the height of the movable plate. A fixed shaft is fixedly connected between two movable plates, and a four-sided top base block is rotatably connected to the fixed shaft. A sliding sleeve block is fixedly connected to each of the four sides of the four-sided top base block. A stamping die assembly that cooperates with the lower die is provided inside each sliding sleeve block. The movable plate is also provided with a top die switching mechanism for driving the rotation of the four-sided top base block.

[0007] As a further aspect of the present invention: the bottom mold switching mechanism includes a second drive gear, which is fixedly connected to one end of the support shaft. A motor base is fixedly connected to the lower end of the fixing plate on one side of the mounting frame. A second servo motor is fixedly connected to the motor base. A second motor gear is fixedly connected to the output end of the second servo motor. The second motor gear meshes with the second drive gear.

[0008] As a further embodiment of the present invention: the adjustment component includes a first hydraulic cylinder, which is fixedly connected to the middle of the upper end of the mounting frame, and an inverted U-shaped frame is fixedly connected to the output end of the first hydraulic cylinder. The two ends of the lower end of the inverted U-shaped frame are respectively fixedly connected to two moving plates.

[0009] As a further embodiment of the present invention: the stamping die assembly includes a T-shaped sliding block, which is slidably connected to a sliding sleeve block. An upper die is fixedly connected to the T-shaped sliding block by screws. Side sliding grooves are provided on both sides of the inner wall of the sliding sleeve block. Side sliders are fixedly connected to both sides of the T-shaped sliding block. The side sliders are slidably connected to the side sliding grooves. A return spring is installed between the lower end face of the side slider and the lower end face of the sliding sleeve block. A push die assembly for pushing the T-shaped sliding block downward is provided in the middle of the fixed shaft.

[0010] As a further embodiment of the present invention: the push mold assembly includes a second hydraulic cylinder, which is fixedly connected to the middle position of the fixed shaft, and a pressure plate is fixedly connected to the output end of the fixed shaft.

[0011] As a further embodiment of the present invention: the top mold switching assembly includes a first drive gear, which is fixedly connected to one side of the four-sided top base block. A first servo motor is fixedly connected to the movable plate on one side of the mounting frame. A first motor gear is fixedly connected to the output end of the first servo motor, and the first motor gear meshes with the first drive gear.

[0012] As a further embodiment of the present invention: positioning holes are provided on one side of the four-sided bottom base block and the four-sided top base block near the four edges, and positioning components are provided on the fixed plate and the movable plate to position the four-sided bottom base block and the four-sided top base block in cooperation with the positioning holes.

[0013] As a further embodiment of the present invention: the positioning component includes a side U-shaped frame, which is fixedly connected to the lower end of the fixed plate and the movable plate. An electric push rod is fixedly connected to each side U-shaped frame, and a positioning pin is fixedly connected to the output end of each electric push rod. Both the fixed plate and the movable plate are provided with clearance holes that match the positioning pins. The positioning pins are used to insert into the positioning holes to lock the four-sided bottom base block or the four-sided top base block.

[0014] As a further embodiment of the present invention, the end of the positioning pin is conical.

[0015] As a further embodiment of the present invention: a control box is provided on one side of the base plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention pre-installs four of the most frequently used mold types on the four sides of a four-sided bottom base block and a four-sided top base block, and utilizes bottom mold switching mechanisms and top mold switching mechanisms to achieve rapid mold changeover between different mold types, effectively improving mold changeover speed and significantly reducing equipment downtime. Simultaneously, the designated positioning components can precisely position the four-sided bottom base block and the four-sided top base block, ensuring accurate positioning after mold switching, thereby guaranteeing the forming effect of the stamped parts. The entire mold switching process requires no manual operation, significantly reducing the labor intensity of workers and decreasing reliance on specialized technicians. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of one side of the invention.

[0018] Figure 2 This is a schematic diagram of the structure on the other side of the present invention.

[0019] Figure 3 This is a schematic diagram of the four-sided base block in this invention.

[0020] Figure 4 This is a schematic diagram of the structure of the ground top base block in this invention.

[0021] Figure 5 This is a schematic diagram of the internal structure of the ground top base block in this invention.

[0022] Figure 6 This is a cross-sectional view of the sliding sleeve in this invention.

[0023] The components include: 1. Base plate; 2. Electric push rod; 3. Fixed plate; 4. Lower mold; 5. Moving plate; 6. Mounting frame; 7. Inverted U-shaped frame; 8. First hydraulic cylinder; 9. Slide rail; 10. Upper mold; 11. Support shaft; 12. Side U-shaped frame; 13. Control box; 14. First servo motor; 15. Second drive gear; 16. Second servo motor; 17. Motor base; 18. Second motor gear; 19. Positioning pin; 20. Positioning hole; 21. T-shaped mounting block; 22. First motor gear; 23. Fixed shaft; 24. First drive gear; 25. T-shaped sliding block; 26. Sliding sleeve block; 27. Second hydraulic cylinder; 28. Pressure plate; 29. ​​Side sliding groove; 30. Side slider; 31. Return spring; 32. Four-sided top base block; 33. Four-sided bottom base block. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-6 In this embodiment of the invention, a vertical stamping equipment with a changeable mold includes a base plate 1. A control box 13 is provided on one side of the base plate 1. A mounting bracket 6 is fixedly connected to the upper end of the base plate 1. Fixing plates 3 are fixedly connected to both sides of the lower end of the mounting bracket 6. A support shaft 11 is rotatably connected between the two fixing plates 3. A four-sided base block 33 is fixedly connected to the support shaft 11. A T-shaped mounting block 21 is fixedly connected to each of the four sides of the four-sided base block 33. A lower mold 4 is fixedly connected to the T-shaped mounting block 21 with screws. The lower mold 4 is fixed to the T-shaped mounting block 21 with screws to facilitate the subsequent replacement of the preset mold. The fixing plate 3 is provided with a bottom mold switching mechanism for driving the support shaft 11 to rotate for mold changing. The bottom mold switching mechanism includes a second drive gear 15, which is fixedly connected to one end of the support shaft 11. A motor base 17 is fixedly connected to the lower end of the fixing plate 3 on one side of the mounting bracket 6. A second servo motor 16 is fixedly connected to the motor base 17. A second motor gear 18 is fixedly connected to the output end of the second servo motor 16. The second motor gear 18 meshes with the second drive gear 15. When switching the lower mold 4 on the four-sided base block 33, the second servo motor 16 drives the second motor gear 18 to rotate according to the preset direction. The second motor gear 18 drives the second drive gear 15 to rotate. The rotation of the second drive gear 15 drives the four-sided base block 33 to rotate 90 degrees, so that each time the lower mold 4 is driven, a position switch is completed.

[0026] The upper ends of the columns of the mounting frame 6 are all fixedly connected to slide rails 9. A movable plate 5 is slidably connected between two slide rails 9 on the same side. The upper end of the mounting frame 6 is provided with an adjustment component for adjusting the height of the movable plate 5. The adjustment component includes a first hydraulic cylinder 8, which is fixedly connected to the middle of the upper end of the mounting frame 6. An inverted U-shaped frame 7 is fixedly connected to the output end of the first hydraulic cylinder 8. The two lower ends of the inverted U-shaped frame 7 are respectively fixedly connected to two movable plates 5. During operation, when changing molds, the first hydraulic cylinder 8 drives the movable plate 5 to slide upward along the slide rails 9, so that the four bottom base blocks 33 and the four top base blocks 32 are separated by a sufficient distance to facilitate the rotation of the four bottom base blocks 33 and the four top base blocks 32 for mold changing, avoiding interference during rotation mold changing. After the mold changing is completed, the first hydraulic cylinder 8 pushes the movable plate 5 downward to reset, so that the four bottom base blocks 33 and the four top base blocks 32 maintain a suitable working distance to ensure the subsequent stamping effect.

[0027] A fixed shaft 23 is fixedly connected between two movable plates 5. A four-sided top base block 32 is rotatably connected to the fixed shaft 23. A sliding sleeve block 26 is fixedly connected to each of the four sides of the four-sided top base block 32. Each sliding sleeve block 26 is provided with a stamping die assembly that cooperates with the lower die 4. The stamping die assembly includes a T-shaped sliding block 25, which is slidably connected to the sliding sleeve block 26. An upper die 10 is fixedly connected to the T-shaped sliding block 25 by screws. Side sliding grooves 29 are provided on both sides of the inner wall of the sliding sleeve block 26. Side sliders 30 are fixedly connected to both sides of the T-shaped sliding block 25. The side sliders 30 are slidably connected to the side sliding grooves 29. The lower end face of the side slider 30 is in contact with the sliding groove 29. A return spring 31 is installed between the lower end faces of the sleeve block 26. A push mold assembly for pushing the T-shaped sliding block 25 downward is provided in the middle of the fixed shaft 23. The push mold assembly includes a second hydraulic cylinder 27, which is fixedly connected to the middle position of the fixed shaft 23. A pressure plate 28 is fixedly connected to the output end of the fixed shaft 23. During stamping, the output end of the second hydraulic cylinder 27 drives the pressure plate 28, which can push the T-shaped sliding block 25 downward, so that the upper mold 10 presses onto the lower mold 4 to realize the stamping of the product. After the stamping is completed, the second hydraulic cylinder 27 drives the pressure plate 28 to return upward, and the T-shaped sliding block 25 returns to its original position under the action of the return spring 31.

[0028] The movable plate 5 is also provided with a top mold switching mechanism for driving the rotation of the four-sided top base block 32; the top mold switching assembly includes a first drive gear 24, which is fixedly connected to one side of the four-sided top base block 32. A first servo motor 14 is fixedly connected to the movable plate 5 on one side of the mounting bracket 6. A first motor gear 22 is fixedly connected to the output end of the first servo motor 14. The first motor gear 22 meshes with the first drive gear 24. When switching the upper mold 10 on the four-sided top base block 32, the first servo motor 14 drives the first motor gear 22 to rotate according to a preset. The rotation of the first motor gear 22 drives the first drive gear 24 to rotate. The first drive gear 24 drives the four-sided top base block 32 to rotate 90 degrees, thereby realizing the switching of the upper mold 10.

[0029] Positioning holes 20 are provided on one side of each of the four bottom base blocks 33 and four top base blocks 32 near their four edges. Positioning components that cooperate with the positioning holes 20 to position the four bottom base blocks 33 and four top base blocks 32 are provided on both the fixed plate 3 and the movable plate 5. Each positioning component includes a side U-shaped frame 12, which is fixedly connected to the lower end of the fixed plate 3 and the movable plate 5. An electric push rod 2 is fixedly connected to each side U-shaped frame 12, and a positioning pin 19 is fixedly connected to the output end of each electric push rod 2. Positioning pins 19 are provided on both the fixed plate 3 and the movable plate 5. The positioning pin 19 is used to lock the four-sided bottom base block 33 or the four-sided top base block 32 by inserting it into the positioning hole 20. The end of the positioning pin 19 is conical. When changing the mold, the electric push rod 2 will first pull the positioning pin 19 out of the positioning hole 20 to release the lock on the four-sided bottom base block 33 and the four-sided top base block 32. Then the four-sided bottom base block 33 and the four-sided top base block 32 will rotate to change the mold. After the mold change is completed, the electric push rod 2 will push the positioning pin 19 to re-insert into the positioning hole 20 to achieve the positioning and locking of the four-sided bottom base block 33 and the four-sided top base block 32.

[0030] The working principle of this invention is as follows: When mold switching is required, the first hydraulic cylinder 8 in the adjusting assembly first drives the inverted U-shaped frame 7 and the moving plate 5 to rise along the slide rail 9, so that the four-sided top base block 32 and the four-sided bottom base block 33 are separated to have sufficient rotation space. At the same time, the positioning components on the upper and lower sides move synchronously: the electric push rod 2 pulls the conical positioning pin 19 out of the corresponding positioning hole 20 of the four-sided bottom base block 33 and the four-sided top base block 32, releasing the lock on the two. Subsequently, the bottom mold switching mechanism and the top mold switching mechanism are started according to the preset program. The second servo motor 16 drives the support shaft 11 to rotate the four-sided bottom base block 33 precisely by 90 degrees through the meshing of the second motor gear 18 and the second drive gear 15, so that the preset lower mold 4 is switched to the working position; the first servo motor 14 drives the four-sided top base block 32 on the fixed shaft 23 to rotate synchronously by 90 degrees through the meshing of the first motor gear 22 and the first drive gear 24, so that the corresponding upper mold 10 is switched into position. After the mold rotates into place, the electric push rod 2 in the positioning assembly pushes the positioning pin 19 into the positioning hole 20 again to accurately position and lock the four bottom base blocks 33 and the four top base blocks 32, ensuring the mold closing accuracy of the upper and lower molds. Subsequently, the first hydraulic cylinder 8 pushes the moving plate 5 to reset downward along the slide rail 9, so that the upper mold 10 and the lower mold 4 return to the set working distance, and the mold changing process is completed.

[0031] When the stamping operation begins, the second hydraulic cylinder 27 in the die assembly drives the pressure plate 28 downward. The pressure plate 28 pushes the T-shaped sliding block 25 within the sliding sleeve 26 below the current working position, causing the upper die 10 to move downward along the side slide groove 29. Guided by the side slide block 30, it closes with the corresponding lower die 4, completing the stamping of the workpiece. After stamping, the second hydraulic cylinder 27 drives the pressure plate 28 to return to its original position. The T-shaped sliding block 25 retracts upward under the elastic restoring force of the return spring 31, causing the upper die 10 to leave the lower die 4. Thus, the equipment completes one work cycle. By repeating the above process, rapid switching between different die types and continuous stamping production can be achieved.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Although this specification describes embodiments, not every embodiment contains only one technical solution. This method of description is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vertical stamping machine with interchangeable molds, comprising a base plate (1), characterized in that: The upper end of the base plate (1) is fixedly connected to the mounting bracket (6), and the lower end of the mounting bracket (6) is fixedly connected to both sides of the mounting bracket (6). The two fixing plates (3) are rotatably connected to the support shaft (11), and the support shaft (11) is fixedly connected to the four-sided base block (33). The four sides of the four-sided base block (33) are fixedly connected to the four sides of the base block (33). The lower mold (4) is fixedly connected to the T-shaped mounting block (21) by screws. The fixing plate (3) is provided with a bottom mold switching mechanism for driving the support shaft (11) to rotate and change the mold. The upper end of each column of the mounting frame (6) is fixedly connected to a slide rail (9), and a movable plate (5) is slidably connected between two slide rails (9) on the same side. The upper end of the mounting frame (6) is provided with an adjustment component for adjusting the height of the movable plate (5). A fixed shaft (23) is fixedly connected between the two movable plates (5). A four-sided top base block (32) is rotatably connected on the fixed shaft (23). A sliding sleeve block (26) is fixedly connected on each of the four sides of the four-sided top base block (32). A stamping die assembly that cooperates with the lower die (4) is provided in each sliding sleeve block (26). A top die switching mechanism for driving the four-sided top base block (32) to rotate is also provided on the movable plate (5).

2. The vertical stamping equipment with interchangeable molds according to claim 1, characterized in that, The bottom mold switching mechanism includes a second drive gear (15), which is fixedly connected to one end of the support shaft (11). A motor base (17) is fixedly connected to the lower end of the fixing plate (3) on one side of the mounting bracket (6). A second servo motor (16) is fixedly connected to the motor base (17). A second motor gear (18) is fixedly connected to the output end of the second servo motor (16). The second motor gear (18) meshes with the second drive gear (15).

3. The vertical stamping equipment with interchangeable molds according to claim 1, characterized in that, The adjustment assembly includes a first hydraulic cylinder (8), which is fixedly connected to the middle of the upper end of the mounting frame (6). The output end of the first hydraulic cylinder (8) is fixedly connected to an inverted U-shaped frame (7), and the two ends of the lower end of the inverted U-shaped frame (7) are fixedly connected to two moving plates (5) respectively.

4. The vertical stamping equipment with interchangeable molds according to claim 1, characterized in that, The stamping die assembly includes a T-shaped sliding block (25), which is slidably connected to a sliding sleeve block (26). An upper die (10) is fixedly connected to the T-shaped sliding block (25) by screws. Side sliding grooves (29) are provided on both sides of the inner wall of the sliding sleeve block (26). Side sliders (30) are fixedly connected to both sides of the T-shaped sliding block (25). The side sliders (30) are slidably connected to the side sliding grooves (29). A return spring (31) is installed between the lower end face of the side slider (30) and the lower end face of the sliding sleeve block (26). A push die assembly for pushing the T-shaped sliding block (25) downward is provided in the middle of the fixed shaft (23).

5. A vertical stamping equipment with a changeable die according to claim 4, characterized in that, The push mold assembly includes a second hydraulic cylinder (27), which is fixedly connected to the middle position of the fixed shaft (23), and a pressure plate (28) is fixedly connected to the output end of the fixed shaft (23).

6. A vertical stamping equipment with a changeable die according to claim 1, characterized in that, The top mold switching assembly includes a first drive gear (24), which is fixedly connected to one side of the four-sided top base block (32). A first servo motor (14) is fixedly connected to the moving plate (5) on one side of the mounting bracket (6). A first motor gear (22) is fixedly connected to the output end of the first servo motor (14). The first motor gear (22) meshes with the first drive gear (24).

7. A vertical stamping equipment with a changeable die according to claim 1, characterized in that, The four-sided bottom base block (33) and the four-sided top base block (32) are provided with positioning holes (20) on one side near the four edges. The fixed plate (3) and the moving plate (5) are provided with positioning components that cooperate with the positioning holes (20) to position the four-sided bottom base block (33) and the four-sided top base block (32).

8. A vertical stamping equipment with a changeable die according to claim 7, characterized in that, The positioning component includes a side U-shaped frame (12), which is fixedly connected to the lower end of the fixed plate (3) and the movable plate (5). An electric push rod (2) is fixedly connected to each side U-shaped frame (12), and a positioning pin (19) is fixedly connected to the output end of each electric push rod (2). Both the fixed plate (3) and the movable plate (5) have clearance holes that match the positioning pin (19). The positioning pin (19) is used to insert into the positioning hole (20) to lock the four-sided bottom base block (33) or the four-sided top base block (32).

9. A vertical stamping equipment with a changeable die according to claim 8, characterized in that, The end of the positioning pin (19) is conical.

10. A vertical stamping equipment with a changeable die according to claim 1, characterized in that, A control box (13) is provided on one side of the base plate (1).

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