Heavy hydraulic press mold with positioning mechanism

Abstract

This utility model discloses a heavy-duty hydraulic press mold with a positioning mechanism, relating to the field of hydraulic press mold technology. It includes a worktable and movable wedges. Support plates are installed on both the upper left and right sides of the worktable. A hydraulic press is installed above the top plate. An upper mold assembly is installed below the connecting plate. A lower mold assembly is installed on the upper surface of the worktable. Movable wedges are installed on both the left and right sides of the lower surface of the connecting plate. Fixed seats are provided on both the left and right sides of the lower mold assembly. In this heavy-duty hydraulic press mold with a positioning mechanism, during mold closing, the movable wedges descend with the connecting plate, pushing the movable wedges along the grooves of the fixed seats towards the center via an inclined plane. A limiting plate precisely clamps the workpiece on the lower mold assembly, preventing displacement. A first guide rod ensures the vertical movement of the upper mold assembly. Combined with the positioning effect of the movable wedges, this significantly reduces product defects caused by misalignment, reduces localized mold wear, and extends service life.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic press mold technology, specifically a heavy-duty hydraulic press mold with a positioning mechanism. Background Technology

[0002] Heavy-duty hydraulic presses, as core equipment for metal forging and stamping, are widely used in aerospace, automobile manufacturing, shipbuilding and other fields. They can perform high-strength pressure processing on thick plates and large blanks. The positioning accuracy of the matching molds directly determines the product quality. For example, in automobile frame stamping, mold positioning deviation can lead to out-of-tolerance parts dimensions and assembly interference. In aero-engine casing forging, inaccurate positioning may cause metal flow line disorder and reduce the fatigue strength of components.

[0003] For example, Chinese utility model patent application number 202321361225.0 discloses a hydraulic press forming mold that is easy to install and disassemble. This allows for convenient replacement of different molds according to different work requirements, thus meeting work needs, improving work efficiency, and bringing convenience to workers. However, the device still has certain shortcomings. When the mold is closed, the parts cannot be positioned, which makes the parts prone to displacement during mold closing. This leads to defects in the product molding quality, greatly reduces the molding qualification rate of the mold, and also aggravates the wear of local areas of the mold, shortens the mold life and increases equipment maintenance costs.

[0004] Therefore, we propose a heavy-duty hydraulic press mold with a positioning mechanism to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a heavy-duty hydraulic press mold with a positioning mechanism to solve the problems mentioned in the background art, such as the inability to position parts during mold closing, which makes parts prone to displacement during mold closing, resulting in defects in product molding quality, greatly reducing the molding qualification rate of the mold, and at the same time aggravating wear in local areas of the mold, shortening the mold service life, and increasing equipment maintenance costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty hydraulic press mold with a positioning mechanism, comprising a worktable and movable wedges. Support plates are installed on the upper left and right sides of the worktable, and a top plate is installed above the support plates. A hydraulic press is installed above the top plate, and a connecting plate is installed below the hydraulic press via a hydraulic rod. An upper mold assembly is installed below the connecting plate, a lower mold assembly is installed on the upper surface of the worktable, and movable wedges are installed on the lower left and right sides of the connecting plate. The lower mold assembly has fixed seats on both the left and right sides, and a movable wedge is provided above the fixed seats. The upper surface of the movable wedge is provided with a groove, and a threaded rod is installed in the groove. A limit plate is installed on the opposite side of the threaded rod through a bearing seat. A connecting rod is installed on the opposite side of the movable wedge, and a movable frame is installed on the opposite end of the connecting rod. The movable frame is connected to the support plate by a telescopic spring.

[0007] Preferably, the lower mold assembly is located directly below the upper mold assembly, and a first guide rod is installed on both the left and right sides of the upper surface of the connecting plate. The first guide rod passes through the top plate and is slidably connected to the top plate.

[0008] With the above structural design, the lower mold assembly is located directly below the upper mold assembly, ensuring accurate mold closing; when the connecting plate rises or falls, the first guide rod above it slides along the top plate, limiting the offset of the connecting plate, ensuring the vertical movement of the upper mold assembly, and avoiding mold wear or workpiece defects caused by tilting during mold closing.

[0009] Preferably, each of the movable wedge plates has a through groove, the width of which is greater than the diameter of the connecting rod.

[0010] With the above structural design, the through groove on the movable wedge plate provides space for the connecting rod to move. When the movable wedge plate descends to push the movable wedge block, the connecting rod can slide along the through groove, avoiding mutual interference between the two and ensuring smooth operation of the positioning mechanism.

[0011] Preferably, the fixing seat is fixed to the upper surface of the workbench, and the upper surface of the fixing seat is provided with sliding grooves on both the front and rear sides.

[0012] With the above structural design, the fixed seat is fixed on the worktable to provide support for the movable wedge; the groove on its surface guides the movement trajectory of the movable wedge, ensuring that the movable wedge moves smoothly towards or away from the workpiece along a straight line, thus improving positioning accuracy.

[0013] Preferably, pulley assemblies are installed on both the front and rear sides of the lower surface of the movable wedge plate, the pulley assemblies roll in the groove, and the inclined surface of the movable wedge plate corresponds to the inclined surface of the movable wedge block.

[0014] With the above structural design, the pulley assembly on the lower surface of the movable wedge rolls in the groove, reducing the frictional resistance when the movable wedge moves; the inclined surface of the movable wedge fits against the inclined surface of the movable wedge plate, converting the vertical movement of the movable wedge plate into the horizontal movement of the movable wedge, thus achieving positioning drive.

[0015] Preferably, a second guide rod is installed on the opposite side of the limiting plate, the second guide rod passes through the movable wedge, and the second guide rod is slidably connected to the movable wedge.

[0016] With the above structural design, the rotating threaded rod can drive the limiting plate to move horizontally, adapting to the positioning requirements of workpieces of different sizes; when the limiting plate moves, the second guide rod slides along the movable wedge to prevent the limiting plate from rotating and ensure accurate positioning direction.

[0017] Preferably, the telescopic spring is a long fatigue life spring and is replaced periodically according to the frequency of use. The movable frame passes through the support plate and is slidably connected to the support plate.

[0018] With the above structural design, the movable frame slides along the support plate, providing guidance for the movement of the movable wedge; the telescopic spring pulls the movable wedge to reset when the movable wedge plate rises, the long fatigue life design extends its service life, and regular replacement can ensure stable reset force and ensure reliable operation of the positioning mechanism.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the heavy-duty hydraulic press mold with positioning mechanism: 1. Achieve precise workpiece positioning, improving product molding quality and mold life. When the mold is closed, the movable wedge plate descends with the connecting plate and pushes the movable wedge block along the slide groove of the fixed seat to move towards the center through the inclined surface. The limiting plate accurately clamps the workpiece on the lower mold assembly to avoid displacement. The first guide rod ensures the vertical movement of the upper mold assembly. Together with the positioning function of the movable wedge block, it greatly reduces product defects caused by misalignment, reduces local wear of the mold, and extends its service life. 2. Adaptable to various workpiece specifications and automated operation, improving production efficiency. The rotating threaded rod can adjust the spacing between the limit plates via the second guide rod to accommodate workpieces of different sizes; after the mold is closed, the movable wedge plate rises and the movable wedge block automatically resets under the action of the telescopic spring, without the need for manual intervention; the pulley assembly reduces moving friction and ensures smooth operation of the positioning mechanism. The overall design improves the versatility and continuous operation efficiency of the hydraulic press. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall main structure of this utility model; Figure 2 This is a schematic diagram of the structure of the present invention when the mold is closed; Figure 3 This is a schematic diagram of the movable wedge structure of this utility model; Figure 4 This is a schematic diagram of the position and structure of the pulley assembly of this utility model; Figure 5 This is a schematic diagram of the position and structure of the pulley assembly and the slide groove of this utility model.

[0021] In the diagram: 1. Workbench; 2. Support plate; 3. Top plate; 4. Hydraulic press equipment; 5. Hydraulic rod; 6. Connecting plate; 7. Upper mold assembly; 8. Movable wedge plate; 9. First guide rod; 10. Lower mold assembly; 11. Fixed seat; 12. Slide groove; 13. Movable wedge block; 14. Pulley assembly; 15. Groove; 16. Threaded rod; 17. Limiting plate; 18. Second guide rod; 19. Connecting rod; 20. Movable frame; 21. Telescopic spring. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 This utility model provides a technical solution: a heavy-duty hydraulic press mold with a positioning mechanism, including a worktable 1, a support plate 2, a top plate 3, a hydraulic press 4, a hydraulic rod 5, a connecting plate 6, an upper mold assembly 7, a movable wedge plate 8, a first guide rod 9, a lower mold assembly 10, a fixed seat 11, a slide 12, a movable wedge block 13, a pulley assembly 14, a groove 15, a threaded rod 16, a limiting plate 17, a second guide rod 18, a connecting rod 19, a movable frame 20, and a telescopic spring 21. Support plates 2 are installed on both the left and right sides above the worktable 1, and a top plate 3 is installed above the support plates 2. The hydraulic press 4 is installed above the top plate 3, and a connecting plate 6 is installed below the hydraulic press 4 via the hydraulic rod 5. The upper mold assembly 7 is installed below the connecting plate 6. The lower mold assembly 10 is installed on the upper surface of the worktable 1. Directly below the mold assembly 7, first guide rods 9 are installed on both the left and right sides of the upper surface of the connecting plate 6. The first guide rods 9 pass through the top plate 3 and are slidably connected to the top plate 3. The lower mold assembly 10 is located directly below the upper mold assembly 7 to ensure accurate mold closing. When the connecting plate 6 rises or falls, the first guide rods 9 above it slide along the top plate 3 to limit the offset of the connecting plate 6, ensure the vertical movement of the upper mold assembly 7, and avoid mold wear or workpiece defects caused by tilting during mold closing. Movable wedge plates 8 are installed on both the left and right sides of the lower surface of the connecting plate 6. Each movable wedge plate 8 has a through groove. The width of the through groove is greater than the diameter of the connecting rod 19. The through groove on the movable wedge plate 8 provides space for the connecting rod 19 to move. When the movable wedge plate 8 descends to push the movable wedge block 13, the connecting rod 19 can slide along the through groove to avoid mutual interference and ensure smooth operation of the positioning mechanism.

[0024] The lower mold assembly 10 has fixed seats 11 on both the left and right sides. The fixed seats 11 are fixed to the upper surface of the worktable 1, and the upper surface of the fixed seats 11 has sliding grooves 12 on both the front and rear sides. The fixed seats 11 are fixed to the worktable 1 and provide support for the movable wedge 13. The sliding grooves 12 on its surface guide the movement trajectory of the movable wedge 13, ensuring that the movable wedge 13 moves smoothly towards or away from the workpiece along a straight line, improving the positioning accuracy. The movable wedge 13 is provided above the fixed seats 11, and the lower surface of the movable wedge plate 8 is equipped with pulley assemblies 14 on both the front and rear sides. The wheel assembly 14 rolls within the groove 12. The inclined surface of the movable wedge plate 8 corresponds to the inclined surface of the movable wedge block 13. The pulley assembly 14 on the lower surface of the movable wedge block 13 rolls within the groove 12, reducing the frictional resistance when the movable wedge block 13 moves. The inclined surface of the movable wedge block 13 fits against the inclined surface of the movable wedge plate 8, converting the vertical movement of the movable wedge plate 8 into the horizontal movement of the movable wedge block 13, thus achieving positioning drive. Grooves 15 are provided on the upper surface of the movable wedge block 13, and threaded rods 16 are installed in the grooves 15. The opposite side of the threaded rods 16 is connected by bearings. A limiting plate 17 is installed on the seat. A second guide rod 18 is installed on the opposite side of the limiting plate 17. The second guide rod 18 passes through the movable wedge 13 and is slidably connected to the movable wedge 13. Rotating the threaded rod 16 can drive the limiting plate 17 to move horizontally, adapting to the positioning requirements of workpieces of different sizes. When the limiting plate 17 moves, the second guide rod 18 slides along the movable wedge 13 to prevent the limiting plate 17 from rotating, ensuring accurate positioning. A connecting rod 19 is installed on the opposite side of the movable wedge 13, and the opposite end of the connecting rod 19 is... The device is equipped with a movable frame 20, which is connected to the support plate 2 via a telescopic spring 21. The telescopic spring 21 is a long fatigue life spring and is replaced periodically according to the frequency of use. The movable frame 20 passes through the support plate 2 and is slidably connected to the support plate 2. The movable frame 20 slides along the support plate 2 to guide the movement of the movable wedge 13. When the movable wedge plate 8 rises, the telescopic spring 21 pulls the movable wedge 13 to reset. The long fatigue life design extends its service life, and periodic replacement can ensure the stability of the reset force and ensure the reliable operation of the positioning mechanism.

[0025] It should be noted that this application applies to cases where the upper and lower molds are of the same size and the edge of the workpiece is aligned with the edge of the lower mold assembly 10, or where the workpiece is fitted onto the lower mold assembly 10. When the workpiece is fitted onto the lower mold assembly 10, the position of the limiting plate 17 can be adjusted according to the thickness of the workpiece protruding along the lower mold assembly 10.

[0026] Working principle: When using the heavy hydraulic press mold with positioning mechanism, first, place the workpiece to be processed on the lower mold assembly 10 on the worktable 1. According to the size of the workpiece, rotate the threaded rod 16 in the groove 15 on the movable wedge 13 to drive the limiting plate 17 to slide along the second guide rod 18. Adjust the distance between the two limiting plates 17 so that they abut and clamp with the two sides of the workpiece when it moves under force.

[0027] Start the hydraulic press equipment 4 on the top plate 3. The hydraulic press equipment 4 pushes the connecting plate 6 and the upper mold assembly 7 below it down through the hydraulic rod 5. The first guide rod 9 on the connecting plate 6 slides along the top plate 3 to ensure that the upper mold assembly 7 moves vertically downward.

[0028] During the descent, the movable wedge plate 8 on the lower surface of the connecting plate 6 descends synchronously, and its inclined surface contacts the inclined surface of the movable wedge block 13, pushing the movable wedge block 13 to move towards the center along the slide groove 12 on the fixed seat 11. The pulley assembly 14 on the lower surface of the movable wedge block 13 rolls in the slide groove 12 to reduce frictional resistance. The movable wedge block 13 drives the movable frame 20 to slide along the support plate 2 through the connecting rod 19, stretching the telescopic spring 21 until the limiting plate 17 clamps the workpiece and completes the positioning.

[0029] The upper mold assembly 7 continues to descend and close with the lower mold assembly 10 to process the workpiece. After processing, the hydraulic rod 5 drives the connecting plate 6 and the upper mold assembly 7 to rise, and the movable wedge plate 8 moves upward accordingly. The movable wedge block 13 resets under the elastic force of the telescopic spring 21, and the limiting plate 17 releases the workpiece, allowing the processed product to be removed. The through groove on the movable wedge plate 8 provides movement space for the connecting rod 19, avoiding interference and ensuring smooth positioning and processing, thereby completing a series of tasks. Content not described in detail in this specification is prior art known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heavy-duty hydraulic press mold with a positioning mechanism, comprising a worktable (1) and a movable wedge (13), wherein support plates (2) are installed on the upper left and right sides of the worktable (1), and a top plate (3) is installed above the support plates (2), a hydraulic press device (4) is installed above the top plate (3), and a connecting plate (6) is installed below the hydraulic press device (4) via a hydraulic rod (5), an upper mold assembly (7) is installed below the connecting plate (6), and a lower mold assembly (10) is installed on the upper surface of the worktable (1), characterized in that: Movable wedge plates (8) are installed on both the left and right sides of the lower surface of the connecting plate (6); The lower mold assembly (10) is provided with fixed seats (11) on both the left and right sides, and a movable wedge (13) is provided above the fixed seat (11). The upper surface of the movable wedge (13) is provided with a groove (15), and a threaded rod (16) is installed in the groove (15). A limit plate (17) is installed on the opposite side of the threaded rod (16) through a bearing seat. A connecting rod (19) is installed on the opposite side of the movable wedge (13), and a movable frame (20) is installed on the opposite end of the connecting rod (19). The movable frame (20) is connected to the support plate (2) through a telescopic spring (21).

2. The heavy-duty hydraulic press mold with a positioning mechanism according to claim 1, characterized in that: The lower mold assembly (10) is located directly below the upper mold assembly (7). The upper surface of the connecting plate (6) is equipped with first guide rods (9) on both the left and right sides. The first guide rods (9) pass through the top plate (3) and are slidably connected to the top plate (3).

3. The heavy-duty hydraulic press mold with a positioning mechanism according to claim 1, characterized in that: Each of the movable wedge plates (8) has a through groove, the width of which is greater than the diameter of the connecting rod (19).

4. The heavy-duty hydraulic press mold with a positioning mechanism according to claim 1, characterized in that: The fixed seat (11) is fixed on the upper surface of the workbench (1), and the upper surface of the fixed seat (11) is provided with sliding grooves (12) on both the front and rear sides.

5. The heavy-duty hydraulic press mold with a positioning mechanism according to claim 4, characterized in that: The lower surface of the movable wedge plate (8) is equipped with pulley assemblies (14) on both the front and rear sides. The pulley assemblies (14) roll in the groove (12). The inclined surface of the movable wedge plate (8) corresponds to the inclined surface of the movable wedge block (13).

6. The heavy-duty hydraulic press mold with a positioning mechanism according to claim 1, characterized in that: A second guide rod (18) is installed on the opposite side of the limiting plate (17). The second guide rod (18) passes through the movable wedge (13) and is slidably connected to the movable wedge (13).

7. The heavy-duty hydraulic press mold with a positioning mechanism according to claim 1, characterized in that: The telescopic spring (21) is a long fatigue life spring and is replaced regularly according to the frequency of use. The movable frame (20) passes through the support plate (2) and is slidably connected to the support plate (2).

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