Integrated hydraulic device lower beam plate

Abstract

The invention provides an integrated hydraulic device lower beam plate, relates to the technical field of hydraulic devices, and aims to solve the technical problem that in the prior art, a traditional hydraulic device lower beam plate cannot meet the requirement that in the forming process, a lower die plate needs to output pressure from bottom to top. An integrated hydraulic device lower beam plate comprises a beam plate body, a mounting cavity is formed in the beam plate body, a first oil cylinder used for providing upward pressure for a product to deform the product and a second oil cylinder used for ejecting the product are connected into the mounting cavity, the first oil cylinder is connected with a push rod, and the second oil cylinder is connected with an ejector rod. The push rod and the ejector rod are arranged upwards and penetrate through the upper end of the beam plate body; the lower beam plate is applied to a hydraulic device, the first oil cylinder can drive the push rod to move in the vertical direction, bottom-to-top pressure can be output when the push rod is driven to move upwards, the pressure acts on a lower die above the lower beam plate, and therefore the bottom-to-top pressure is provided for a product in the forming process.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic devices, in particular to a lower beam plate of an integrated hydraulic device. Background Art

[0002] Hydraulic devices are mainly used for press forming. Taking wheel hub processing as an example, the raw materials are placed on the lower die, and the upper die presses the raw materials downward, and the raw materials are pressed into the shape of the wheel hub according to the shapes of the upper and lower dies. The pressure of the hydraulic device comes from the oil cylinder. The traditional hydraulic device generally includes an upper beam plate, an upper die, a lower die, a lower beam plate and a column. The upper die and the lower die are arranged between the movable die plate and the lower beam plate. The upper beam plate and the lower beam plate are connected by a column. When the upper die is pressed downward, pressure is applied to the raw materials to press and deform the raw materials. The lower beam plate of the traditional hydraulic device is generally only provided with a push rod and its driving parts, which are used to eject the formed product. For some situations in which the lower die core needs to output pressure from the bottom to the top during the forming process, the lower beam plate of the traditional hydraulic device cannot meet the demand. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an integrated hydraulic device lower beam plate to solve the technical problem that the traditional hydraulic device lower beam plate in the prior art cannot meet the demand for the lower mold annular mold core to output pressure from bottom to top during the molding process.

[0004] In order to solve the above technical problems, the present invention provides a lower beam plate of an integrated hydraulic device, including a beam plate body, a mounting cavity is provided in the beam plate body, a first oil cylinder for providing upward pressure to the product to deform the product and a second oil cylinder for ejecting the product are connected in the mounting cavity, the first oil cylinder is connected to a push rod, the second oil cylinder is connected to an ejection rod, and the push rod and the ejection rod are both arranged upward and pass through the upper end of the beam plate body.

[0005] After adopting the above structure, the lower beam plate of an integrated hydraulic device of the present invention has the following advantages: the lower beam plate is used in the hydraulic device, and the first oil cylinder can drive the push rod to move vertically. When driving the push rod to move upward, it can output pressure from the bottom to the top, and the pressure acts on the lower mold above the lower beam plate, thereby providing bottom-up pressure for the product during the molding process. For example, in some hub molding processes that require greater molding pressure, the pressure of the upper mold is limited. When the upper mold is pressed downward, the first oil cylinder cooperates with the pressure of the upper mold to provide greater pressure to the product to promote the product to be pressed and molded, meeting the use requirements. After the product is pressed and molded, the second oil cylinder ejects the product through the ejector rod, so that the lower beam plate integrating the first oil cylinder and the second oil cylinder can meet the demand for bottom-up pressure output by the lower mold plate during the molding process.

[0006] As an improvement, the beam plate body includes a base and a cover plate, an installation cavity is arranged in the base and the upper end of the installation cavity forms an opening on the upper end surface of the base, the cover plate is connected to the base and blocks the opening, and the push rod and the ejector rod both pass through the upper end of the cover plate; this structure has the advantages of simple structure and easy installation of the first oil cylinder and the second oil cylinder.

[0007] As an improvement, the opening width is larger than the installation cavity width so that a step surface is formed inside the base, the bottom end of the cover plate abuts against the step surface, and the cover plate and the base are fixed by bolts; with this structure, the step surface limits the cover plate, and the step surface is utilized so that the cover plate and the base can be fixed by bolts, which facilitates connection and fixation.

[0008] As an improvement, a protrusion is provided at the bottom end of the cover plate, and the side wall of the protrusion abuts against the inner wall of the installation cavity; adopting this structure, the stability of the connection between the cover plate and the base is improved.

[0009] As an improvement, the first cylinder is an annular plunger cylinder, the second cylinder is a piston cylinder and is located in the center hole of the first cylinder, and the push rods are columnar and distributed in a ring. With this structure, the annular plunger cylinder and the multiple push rods distributed in a ring can apply pressure to the lower mold more evenly, and the second cylinder can be set in the center hole of the first cylinder. The structure is more compact and can also avoid affecting the normal ejection of the product.

[0010] As an improvement, an annular partition is provided in the installation cavity, the first oil cylinder is fixedly connected between the outer peripheral wall of the annular partition and the inner wall of the installation cavity, and the second oil cylinder is fixedly connected to the inner peripheral wall of the annular partition; by adopting this structure, the first oil cylinder and the second oil cylinder are respectively limited and fixed by the annular partition, thereby improving the stability of the overall structure.

[0011] As an improvement, the annular partition is integrally formed with the beam plate body; adopting this structure can reduce one part and strengthen the structure, simplifying the installation steps.

[0012] As an improvement, a slot is provided at the bottom end of the installation cavity, and the lower end of the annular partition is inserted into the slot to be separately formed; this structure is easy to process and simple to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of embodiment 1 of the present invention.

[0014] Figure 2 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0015] Figure numerals: 1, beam body; 101, base; 102, cover plate; 2, installation cavity; 3, first oil cylinder; 4, second oil cylinder; 5, push rod; 6, ejector rod; 7, opening; 8, step surface; 9, bolt; 10, protrusion; 11, annular partition; 12, slot. DETAILED DESCRIPTION

[0016] The following is a detailed description of the lower beam plate of an integrated hydraulic device of the present invention in conjunction with the accompanying drawings.

[0017] Embodiment 1: like Figure 1 As shown, in this embodiment, an integrated hydraulic device lower beam is provided, including a beam body 1, a mounting cavity 2 is provided in the beam body 1, the beam body 1 includes a base 101 and a cover plate 102, the mounting cavity 2 is provided in the base 101, and the upper end of the mounting cavity 2 forms an opening 7 on the upper end surface of the base 101, the cover plate 102 is connected to the base 101 and blocks the opening 7, the width of the opening 7 is greater than the width of the mounting cavity 2, so that a step surface 8 is formed in the base 101. In this embodiment, since the cross-sections of the mounting cavity 2 and the opening 7 are both circular, The width here refers to the diameter, that is, the diameter of the opening 7 is larger than the diameter of the installation cavity 2. The step surface 8 is horizontally arranged, and its height position is between the upper end surface of the base 101 and the inner bottom end. The bottom end of the cover plate 102 is against the step surface 8, and the cover plate 102 and the base 101 are fixed by bolts 9. Specifically, the bolts 9 are fixed to the base 101 via the step surface 8. A protrusion 10 is provided at the bottom end of the cover plate 102, and the side wall of the protrusion 10 is against the inner wall of the installation cavity 2, that is to say, the protrusion 10 is inserted into the installation cavity 2.

[0018] like Figure 1 As shown, the installation cavity 2 is connected with a first cylinder 3 for providing upward pressure to the product to deform the product and a second cylinder 4 for ejecting the product. The first cylinder 3 is connected with a push rod 5, and the second cylinder 4 is connected with an ejector rod 6. The push rod 5 and the ejector rod 6 are both arranged upward and pass through the upper end of the beam body 1. The push rod 5 extends upward from the beam body 1 to contact the lower mold to apply upward pressure. Similarly, the ejector rod 6 extends upward from the beam body 1 to eject the product. Specifically, the push rod 5 and the ejector rod 6 pass through the upper end of the cover plate 102.

[0019] like Figure 1 As shown, the first oil cylinder 3 is an annular plunger oil cylinder, the second oil cylinder 4 is a piston oil cylinder and is located in the center hole of the first oil cylinder 3, the push rod 5 is columnar and annularly distributed, and the ejector rod 6 is also located in the center hole of the push rod 5. Since the ejector rod 6 and the push rod 5 both pass through the cover plate 102, the ejector rod 6 and the push rod 5 are still separated by the cover plate 102; and an annular partition plate 11 is provided in the installation cavity 2, and the annular partition plate 11 is integrally formed with the beam plate body 1. Specifically, the annular partition plate 11 is connected to the bottom end of the base 101 and is integrally formed with the base 101. The first oil cylinder 3 is fixedly connected between the outer peripheral wall of the annular partition plate 11 and the inner wall of the installation cavity 2, and the second oil cylinder 4 is fixedly connected to the inner peripheral wall of the annular partition plate 11.

[0020] The lower beam plate is used in a hydraulic device, and the first oil cylinder 3 can drive the push rod 5 to move vertically. When driving the push rod 5 to move upward, it can output a bottom-up pressure, and apply the pressure to the lower mold above the lower beam plate, thereby providing a bottom-up pressure for the product during the molding process. For example, in some hub molding processes that require greater molding pressure, the pressure of the upper mold is limited. When the upper mold is pressed downward, the first oil cylinder 3 cooperates with the pressure of the upper mold to provide a greater pressure to the product to promote the product to be pressed and molded to meet the use requirements. After the product is pressed and molded, the second oil cylinder 4 ejects the product through the ejector rod 6, so that the lower beam plate integrating the first oil cylinder 3 and the second oil cylinder 4 can meet the demand for the bottom-up pressure output by the lower mold plate during the molding process.

[0021] Embodiment 2: like Figure 2 As shown, another integrated hydraulic device lower beam plate is provided in this embodiment. The difference between this embodiment and the first embodiment is that a slot 12 is provided at the bottom end of the installation cavity 2, that is, an annular slot 12 is provided at the bottom end of the base 101, and the lower end of the annular partition 11 is inserted into the slot 12 to be split into two parts.

[0022] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above two embodiments, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

Claims

1. A lower beam plate of an integrated hydraulic device, characterized in that: The invention comprises a beam plate body (1), wherein a mounting cavity (2) is provided in the beam plate body (1), wherein a first oil cylinder (3) for providing upward pressure on a product to deform the product and a second oil cylinder (4) for ejecting the product are connected in the mounting cavity (2), wherein the first oil cylinder (3) is connected to a push rod (5), and the second oil cylinder (4) is connected to an ejector rod (6), wherein the push rod (5) and the ejector rod (6) are both arranged upward and pass through the upper end of the beam plate body (1).

2. The integrated hydraulic device lower beam plate according to claim 1, characterized in that: The beam plate body (1) comprises a base (101) and a cover plate (102); the installation cavity (2) is arranged in the base (101) and the upper end of the installation cavity (2) forms an opening (7) on the upper end surface of the base (101); the cover plate (102) is connected to the base (101) and blocks the opening (7); and the push rod (5) and the ejector rod (6) both pass through the upper end of the cover plate (102).

3. The integrated hydraulic device lower beam plate according to claim 2, characterized in that: The width of the opening (7) is greater than the width of the installation cavity (2), so that a step surface (8) is formed in the base (101), the bottom end of the cover plate (102) abuts against the step surface (8), and the cover plate (102) and the base (101) are fixed by bolts (9).

4. The integrated hydraulic device lower beam plate according to claim 3, characterized in that: A protrusion (10) is provided at the bottom end of the cover plate (102), and a side wall of the protrusion (10) abuts against an inner wall of the installation cavity (2).

5. The integrated hydraulic device lower beam plate according to claim 1, characterized in that: The first oil cylinder (3) is an annular plunger type oil cylinder, the second oil cylinder (4) is a piston type oil cylinder and is located in the center hole of the first oil cylinder (3), and the push rod (5) is columnar and distributed in an annular shape.

6. The integrated hydraulic device lower beam plate according to claim 5, characterized in that: An annular partition (11) is provided in the installation cavity (2); the first oil cylinder (3) is fixedly connected between the outer peripheral wall of the annular partition (11) and the inner wall of the installation cavity (2); and the second oil cylinder (4) is fixedly connected within the inner peripheral wall of the annular partition (11).

7. The integrated hydraulic device lower beam plate according to claim 6, characterized in that: The annular partition plate (11) and the beam plate body (1) are integrally formed.

8. The integrated hydraulic device lower beam plate according to claim 6, characterized in that: A slot (12) is provided at the bottom end of the installation cavity (2), and the lower end of the annular partition (11) is inserted into the slot (12) to form a split body.

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