Hydraulic machine with mold device

Abstract

The utility model relates to the technical field of hydraulic machines, in particular to a hydraulic machine with a die device. Comprising a hydraulic machine body, an upper cross beam and a lower cross beam are arranged at the upper end and the lower end of the hydraulic machine body respectively, a sliding block assembly sliding up and down is arranged in the hydraulic machine body, and a driving assembly is arranged in the upper cross beam in a penetrating mode to drive a sliding block to move up and down; mold devices for containing carbon fiber hub mold plates are installed at the up-down corresponding positions of the moving assembly and the sliding block assembly, each mold device comprises an upper mold, a middle mold and a lower mold, the upper mold is arranged on the periphery of the middle mold, the lower mold comprises a mounting plate, a base and a pressing bottom plate which are sequentially arranged, and a plurality of side shaping blocks are slidably arranged on the pressing bottom plate; the multiple side shaping blocks are gathered towards the central axis of the lower die and define a middle die movement space, and a hub forming cavity is formed between the middle die and the multiple side shaping blocks. By the adoption of the hub pressing device, the hub pressing precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic press technology, and in particular to a hydraulic press with a mold device. Background Technology

[0002] Currently, the method for forming carbon fiber wheels involves using a conical fit between the upper mold and the side shaping block. The upper mold presses downward to control the side shaping block to slide inward and shape the side of the wheel hub. At the same time, the top and side surfaces of the carbon fiber wheel hub template are pressed simultaneously. This method requires very high precision in the mold fit, and it is difficult to ensure that the shaping force on the side and top surfaces meets the requirements at the same time.

[0003] Therefore, this utility model proposes a hydraulic press with a mold device, which adopts a pressing method that separately controls the side shaping and top shaping to ensure that the forming force of the top and side surfaces meets the requirements at the same time. Summary of the Invention

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a hydraulic press with a mold device.

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

[0006] A hydraulic press with a mold device includes a hydraulic press body, an upper crossbeam, and a lower crossbeam, wherein a slider assembly that slides up and down is provided inside the hydraulic press body;

[0007] A drive assembly is provided through the interior of the upper crossbeam, and the drive assembly drives the slider assembly to move up and down.

[0008] A movable component is slidably mounted on the lower crossbeam;

[0009] The mold device for holding the carbon fiber wheel hub template is installed at the corresponding positions on the upper and lower sides of the moving component and the slider component.

[0010] The drive assembly includes a central cylinder and side cylinders respectively disposed on both sides of the central cylinder;

[0011] The slider assembly includes a slider, a central slider is slidably disposed inside the slider, the upper plane of the central slider is connected to the output shaft of the central cylinder, and the upper plane of the slider is connected to the output shafts of the two side cylinders.

[0012] Furthermore, the mold device includes an upper mold, a middle mold, and a lower mold. The upper mold is disposed around the middle mold. The lower mold includes a mounting plate, a base, and a pressing base plate arranged sequentially. Multiple side shaping blocks are slidably disposed on the pressing base plate. The multiple side shaping blocks converge towards the central axis and enclose to form the middle mold movement space. A hub forming cavity is formed between the middle mold and the multiple side shaping blocks. The mold device is installed at corresponding positions above and below the moving component and the slider component.

[0013] Furthermore, the slider assembly includes a slider, a central slider is slidably disposed inside the slider, the upper plane of the central slider is connected to the output shaft of the central cylinder, the upper plane of the slider is connected to the output shafts of the two side cylinders, the lower plane of the slider is fixedly connected to the top surface of the upper mold, and the lower plane of the central slider is fixedly connected to the top surface of the middle mold.

[0014] Furthermore, the mounting plate is installed on the platform of the movable component, the base is provided with a groove, the pressing base plate is installed in the groove, the pressing base plate is provided with an annular forming lower ring groove at the center, and a pushing block is fixedly connected to the outer side of the bottom of the plurality of side shaping blocks, and the pushing block is connected to a mold cylinder.

[0015] Furthermore, the outer side of the molded lower annular groove corresponds to the lower end of the plurality of side shaping blocks after they are enclosed.

[0016] Furthermore, the cross-section of the intermediate mold is T-shaped, including a horizontal part and a vertical part. The diameter of the vertical part of the intermediate mold is slightly smaller than the inner diameter of the lower forming groove, and the lower plane of the horizontal part of the intermediate mold abuts against the top of the side shaping block.

[0017] Furthermore, the lower plane of the horizontal part of the middle mold is provided with a forming upper ring groove, and the outer side of the forming upper ring groove corresponds to the upper end of the multiple side shaping blocks after they are enclosed.

[0018] Furthermore, the wheel hub forming cavity is shaped to resemble the shape of the wheel hub to be pressed, and the inner surface of the upper mold is provided with a limiting groove corresponding to the side shaping block.

[0019] Compared with existing technologies, the hydraulic press with mold assembly provided by this utility model has the following advantages:

[0020] 1. Improve molding precision, product quality and strength. The wheel hub is pressed separately on the side and top to ensure the pressing and molding of the wheel hub. It meets the molding force requirements of the top and side of the wheel hub. The hydraulic cylinder provides uniform pressure to ensure that the carbon fiber fabric is subjected to uniform pressure distribution during the molding process, and prevents defects such as damage, wrinkling or air bubbles from appearing in the carbon fiber fabric.

[0021] 2. The hydraulic press uses a slider and a central slider to press the top and sides of the mold device separately, ensuring that the top and sides of the mold device are pressed separately;

[0022] 3. High degree of automation, convenient for feeding and unloading. The moving component carries the lower mold into and out of the hydraulic press. After pressing and demolding, the moving component can move the lower mold out of the hydraulic press for unloading. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the slider of this utility model;

[0025] Figure 3 This is a schematic diagram of the mold device structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the lower mold structure of this utility model. Figure 1 ;

[0027] Figure 5 This is a schematic diagram of the lower mold structure of this utility model. Figure 2 ;

[0028] Figure 6 This is a schematic diagram of the middle mold structure of this utility model;

[0029] Figure 7 This is a schematic diagram of the upper mold structure of this utility model;

[0030] Figure 8 This is a schematic diagram of the workflow of this utility model;

[0031] In the diagram: 1. Hydraulic press body; 11. Upper crossbeam; 12. Slider; 121. Center slider; 13. Lower crossbeam.

[0032] 2. Drive assembly, 21. Center cylinder, 22. Side cylinder,

[0033] 3. Mold assembly, 31. Upper mold, 31a. Limiting groove,

[0034] 32. Middle mold; 32a. Upper ring groove for forming; 33. Lower mold; 34. Hub forming cavity.

[0035] 331. Mounting plate; 332. Base; 333. Pressing base plate; 333a. Forming lower ring groove; 334. Side shaping block; 334a. Forming arc groove; 335. Pushing block; 336. Mold cylinder.

[0036] 4. Moving components, 5. Electrical control cabinet, 6. Control panel. Detailed Implementation

[0037] 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.

[0038] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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.

[0039] Example 1, as Figures 1-2 As shown, a hydraulic press with a mold device is mainly used for carbon fiber wheel hub forming. It includes a hydraulic press body 1, an upper crossbeam 11, and a lower crossbeam 13. The hydraulic press body 4 is provided with a slider assembly that slides up and down inside.

[0040] A drive assembly 2 is provided inside the upper crossbeam 11, and the drive assembly 2 drives the slider assembly to move up and down.

[0041] A movable component 4 is slidably mounted on the lower crossbeam 13;

[0042] The moving component 4 and the slider component are respectively equipped with mold devices 3 for holding carbon fiber wheel hub templates at corresponding positions on the top and bottom.

[0043] The drive assembly 2 includes a central cylinder 21 and side cylinders 22 respectively disposed on both sides of the central cylinder 21;

[0044] The slider assembly includes a slider 12, and a central slider 121 is slidably disposed inside the slider 12. The upper plane of the central slider 121 is connected to the output shaft of the central cylinder 21, and the upper plane of the slider 12 is connected to the output shafts of the two side cylinders 22.

[0045] The central cylinder 21 and the two side cylinders 22 are fixed inside the upper crossbeam 1 by fixed flanges. The guide sliders on both sides of the slider 12 slide up and down on the hydraulic press body 1, while the central slider 12 is suspended and fixed by the central cylinder 21.

[0046] During pressing, the hydraulic press control system controls the extension and retraction of the output shafts of the central cylinder 21 and the side cylinder 22 respectively, and the central cylinder 21 and the side cylinder 22 drive the central slider 121 and the slider 12 to move up and down respectively.

[0047] An electrical control cabinet 5 and an operating table 6 are installed on the outside of the hydraulic press body 1 to facilitate the operation of the hydraulic press.

[0048] In this embodiment, the lower part of the hydraulic press body 1 is installed in the foundation. The moving component 4 includes a moving worktable, a worktable clamping device, and a slide rail. The moving worktable moves back and forth between the outside of the hydraulic press body 1 and the upper plane of the lower crossbeam 13 via the slide rail. The moving worktable is driven by a servo motor. The slide rail is installed on the lower crossbeam 13 and the foundation plane, which can ensure that the moving worktable moves back and forth between the outside and inside of the hydraulic press body 1. When the moving worktable moves to the inside of the hydraulic press body 1 along the slide rail, the worktable clamping device in the moving component 4 clamps the worktable, and the work can be performed. Specifically, the worktable clamping device is implemented as follows: a through groove is provided at the lower part of the moving worktable corresponding to the position of the slide rail. Bosses are provided on both sides of the through groove. Handles are provided on the two bosses. The lower end of the handles is connected to the output end of a tensioning cylinder. When the output end of the tensioning cylinder moves downward, it can drive the handles to move downward, thereby pressing the bosses and finally pressing the moving worktable.

[0049] When the movable worktable moves out, a limit switch is installed on the slide rail. The movable worktable decelerates after hitting the limit switch until it hits the worktable limit block at the end of the slide rail, at which point the movable worktable stops moving. Similarly, when the movable worktable moves into the hydraulic press body 1, the same limit switches and worktable limit blocks are also installed on the slide rail inside the hydraulic press body 1 to limit the position of the movable worktable when it moves in.

[0050] The upper beam 11 of the hydraulic press is equipped with a limit switch. After the formed hub is pressed, the central cylinder 21 and the side cylinder 22 drive the slider 12 and the central slider 121 to hit the limit switch during the rapid return stroke. The limit switch sends a signal to the control system. After receiving the signal that the slider 12 and the central slider 121 have returned to their positions, the control system controls the slider 12 and the central slider 121 to stop moving.

[0051] See also Figures 2-5 The mold device 3 includes an upper mold 31, a middle mold 32 and a lower mold 33;

[0052] The upper mold 31 is set around the middle mold 32;

[0053] The lower mold 33 includes a mounting plate 331, a base 332 and a pressing base plate 333 arranged in sequence. Multiple side shaping blocks 334 are slidably arranged on the pressing base plate 333. The multiple side shaping blocks 334 converge and enclose the central axis of the lower mold to form the movement space of the middle mold 32.

[0054] A hub forming cavity 34 is formed between the middle mold 32 and multiple side shaping blocks 334, and the hub forming cavity 34 is shaped to resemble the shape of the hub to be pressed.

[0055] The top surface of the upper mold 31 is fixedly connected to the lower plane of the slider 12, and the top surface of the middle mold 32 is fixedly connected to the lower plane of the center slider 121.

[0056] The mold device 3 is installed at the corresponding upper and lower positions of the moving component 4 and the slider component.

[0057] During pressing, the central cylinder 21 pushes the central slider 121, the two side cylinders 22 push the slider 12, the central slider 121 drives the middle mold 32, and the slider 12 drives the upper mold 31 to jointly press the mold device 3.

[0058] Example 3, as Figure 3 and Figure 4 As shown, the mounting plate 331 is mounted on the movable worktable, the base 332 is provided with a groove, the pressing base plate 333 is installed in the groove, the pressing base plate 333 is provided with an annular forming lower ring groove 333a at the center, the bottom diameter of the space formed by the multiple side shaping blocks 334 is equal to the outer diameter of the forming lower ring groove 333a, and the pushing block 335 is fixedly connected to the outer side of the bottom of the multiple side shaping blocks 334, and the pushing block 335 is connected to the mold cylinder 336.

[0059] The outer side of the lower ring groove 333a corresponds to the lower end of the multiple side shaping blocks 334 after they are enclosed.

[0060] like Figure 3 As shown, the centers of the upper mold 31, the middle mold 32, and the lower mold 33 are on the same axis.

[0061] In this embodiment, as Figure 4 and Figure 5 As shown, the groove on the base 332 is in the shape of a cross, and there are also four side shaping blocks 334, each distributed on the cross-shaped branch in the groove. They are pushed by the push block 335, which is then pushed by the mold cylinder 336. The four side shaping blocks 334 together form the lower mold cavity. The upper and lower ends of the inner side of the side shaping blocks 334 are provided with inwardly concave forming arc grooves 334a with the same structure. The forming arc grooves 334a in the four side shaping blocks 334 match the shape of the wheel hub to be pressed. The forming arc grooves 334a at the lower end of the four side shaping blocks 334 correspond to the outer arc surface of the forming lower ring groove 333a.

[0062] The side shaping block 334 is a quarter-circle arc, and axial assembly grooves are provided on both sides of the outer arc surface of the side shaping block 334.

[0063] Example 4, as Figure 3 and Figure 6As shown, the cross-section of the middle mold 32 is T-shaped, including a horizontal part and a vertical part. The diameter of the vertical part of the middle mold 32 is slightly smaller than the inner diameter of the forming lower annular groove 333a. The lower plane of the horizontal part of the middle mold 32 abuts against the top of the side shaping block 334.

[0064] In this embodiment, a molding upper annular groove 32a is provided on the lower plane of the horizontal part of the middle mold 32, surrounding the top of the vertical part. The molding upper annular groove 32a corresponds to the upper end of the plurality of side shaping blocks 334 after they are enclosed. The horizontal part of the middle mold 32 is a cuboid with rounded corners, and the vertical part of the middle mold 32 is a cylinder.

[0065] In Example 5, the entire inner cavity of the wheel hub forming cavity 34 is modeled after the shape of the wheel hub to be pressed, and the inner side of the upper mold 31 is provided with a limiting groove 31a corresponding to the side shaping block 334.

[0066] In this embodiment, as Figure 3 and Figure 7 As shown, the upper mold 31 has a through groove in the middle for the movement of the middle mold 32 and the lower mold 33. When the mold is closed, part of the top surface of the side shaping block 334 in the lower mold 33 abuts against the limiting groove 31a, and the other part abuts against the lower plane of the horizontal part of the middle mold 32. The shape of the limiting groove 31a is similar to the external shape of the side shaping block 334.

[0067] Example 6, as Figure 8 As shown, a pressing method using a hydraulic press with a mold device as described above involves first placing a resin-impregnated carbon fiber fabric wheel template into the lower mold 33, heating it to 135-145°C on a heating device, and then placing the lower mold 33 into the moving assembly 4. The moving assembly 4 moves the lower mold 33 into the hydraulic press body 1, where it aligns with the upper mold 31 and the middle mold 32. The method also includes the following steps:

[0068] S1. The mold cylinder 336 pushes the push block 335, and the push block 335 then pushes the side shaping block 334, so that the side shaping block 334 is in close contact with the side of the carbon fiber wheel hub to be pressed.

[0069] S2, drive assembly 2 drives slider 12 to press, side cylinder 22 drives slider 12, center cylinder 21 drives center slider 121, slider 12 and center slider 121 descend synchronously and quickly to reach their respective rapid descent set points, slider 12 and center slider 121 press and hold pressure.

[0070] S3. After the pressure holding is completed, the side cylinder 22 drives the slider 12 to slowly demold to the demolding end point set point, and the center cylinder 21 drives the center slider 121 to slowly demold to the demolding end point set point; when the slider 12 and the center slider 121 reach their respective demolding set points, the side cylinder 22 and the center cylinder 21 simultaneously return quickly.

[0071] S4. Mold cylinder 336 drives side shaping block 334 to demold from the side.

[0072] S5. After demolding is completed, the moving component 4, carrying the lower mold 33 with the molded product, moves out of the hydraulic press body 1 and removes the molded product.

[0073] S2 also includes:

[0074] S21, the central slider 121 drives the middle mold 32 to press the top surface of the carbon fiber wheel hub;

[0075] After S22 and the middle mold 32 are pressed into place, the central cylinder 21 holds the pressure to form the top surface of the carbon fiber wheel hub.

[0076] S23, the side cylinder 22 drives the slider 12 when the center cylinder 21 holds pressure. The slider 12 drives the upper mold 31 to continue pressing downward. During the downward pressing process, the groove surface of the limiting groove 31a in the upper mold 31 is in inclined contact with the outside of the side shaping block 334. This causes the downward pressure of the upper mold 31 to be converted into the force of the side shaping block 334 converging towards the central axis. After the side cylinder (22) presses into place, it holds pressure to form the side of the carbon fiber wheel hub.

[0077] Working principle: First, the carbon fiber woven fabric wheel template impregnated with resin is heated to 135-145℃ using a heating device, and then placed into the lower mold 33. The lower mold 33 is then moved into the hydraulic press body 1 by the moving component 4, aligning it with the upper mold 31 and the middle mold 32. The drive component 2 then drives the slider 12 to press the surface of the carbon fiber wheel hub. The pressing force is 3kg-7.5kg / cm². 2 The process involves pressing the top surface of the carbon fiber wheel hub into shape. While the central cylinder 21 maintains pressure, the side cylinder 22 continues to drive the slider 12. The slider 12 then drives the upper mold 31 to continue pressing downwards, converting the downward pressure of the upper mold 31 into a force that pulls the side shaping blocks 334 towards the central axis, thus pressing and shaping the side of the carbon fiber wheel hub. After both the side cylinder 22 and the central cylinder 21 have reached their pressing positions, the pressure holding time is 2-4 hours. After pressure holding is completed, the mold is removed, and the moving component 4 moves the lower mold 33 out of the hydraulic press body 1. Finally, the pressed product is taken out. Robots can be used for loading and unloading during the material loading and unloading process to reduce labor costs.

[0078] During pressing, the limiting groove 31a can limit the upward movement of the side shaping block 334. In this process, since the contact surface between the upper mold 31 and the lower mold 33 and the side shaping block 334 is inclined, the downward pressure of the upper mold 31 is converted into the force of the side shaping block 334 towards the center of the wheel hub to be pressed, thereby achieving the effect of pressing the side of the wheel hub and maintaining pressure to form the side of the wheel hub.

[0079] The control system installed in the electrical control cabinet 5 controls the movement of the central cylinder 21, side cylinder 22, mold cylinder 336 and moving component 4. The control system can be programmed by technical personnel in the relevant field to complete its movement.

[0080] 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 hydraulic press with a mold assembly, comprising a press body (1), an upper crossbeam (11), and a lower crossbeam (13), characterized in that: The hydraulic press body (1) is equipped with a slider assembly that slides up and down; the upper crossbeam (11) is equipped with a drive assembly (2) that drives the slider assembly to move up and down; the lower crossbeam (13) is equipped with a moving assembly (4); the moving assembly (4) and the slider assembly are equipped with a mold device (3) for holding carbon fiber wheel hub templates at corresponding positions on the upper and lower sides.

2. A hydraulic press with a mold device according to claim 1, characterized in that: The drive assembly (2) includes a central cylinder (21) and side cylinders (22) respectively disposed on both sides of the central cylinder (21); the slider assembly includes a slider (12), a central slider (121) is slidably disposed inside the slider (12), the upper surface of the central slider (121) is connected to the output shaft of the central cylinder (21), and the upper surface of the slider (12) is connected to the output shafts of the two side cylinders (22).

3. A hydraulic press with a mold assembly according to claim 2, characterized in that, The mold device (3) includes an upper mold (31), a middle mold (32), and a lower mold (33); the upper mold (31) is arranged around the middle mold (32); the lower mold (33) includes a mounting plate (331), a base (332), and a pressing base plate (333) arranged in sequence, and multiple side shaping blocks (334) are slidably arranged on the pressing base plate (333). The multiple side shaping blocks (334) converge towards the central axis of the lower mold and enclose to form the movement space of the middle mold (32); a hub forming cavity (34) is formed between the middle mold (32) and the multiple side shaping blocks (334), and the hub forming cavity (34) is shaped like the shape of the hub to be pressed; the top surface of the upper mold (31) is fixedly connected to the lower plane of the slider (12), and the top surface of the middle mold (32) is fixedly connected to the lower plane of the central slider (121); the mold device (3) is installed at the corresponding positions above and below the moving component (4) and the slider component.

4. A hydraulic press with a mold device according to claim 3, characterized in that, The mounting plate (331) is mounted on the platform of the moving component (4). The base (332) is provided with a groove. The pressing base plate (333) is installed in the groove. The pressing base plate (333) is provided with an annular forming lower ring groove (333a) at the center. The bottom outer side of the multiple side shaping blocks (334) is fixedly connected to a pushing block (335). The pushing block (335) is connected to a mold cylinder (336).

5. A hydraulic press with a mold device according to claim 4, characterized in that, The outer side of the molded lower annular groove (333a) corresponds to the lower end of the multiple side shaping blocks (334) after they are enclosed.

6. A hydraulic press with a mold device according to claim 3, characterized in that, The middle mold (32) has a T-shaped cross section, including a horizontal part and a vertical part. The diameter of the vertical part of the middle mold (32) is smaller than the inner diameter of the forming lower annular groove (333a). The lower plane of the horizontal part of the middle mold (32) abuts against the top of the side shaping block (334).

7. A hydraulic press with a mold assembly according to claim 6, characterized in that, The lower plane of the horizontal part of the middle mold (32) is provided with a molding upper ring groove (32a) around the top of the vertical part. The outer side of the molding upper ring groove (32a) corresponds to the upper end of the multiple side shaping blocks (334) after they are enclosed.

8. A hydraulic press with a mold device according to claim 3, characterized in that: The inner side of the upper mold (31) is provided with limiting grooves (31a) corresponding to the plurality of side shaping blocks (334).

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