Hydraulic forging press stripper

Abstract

This utility model discloses a demolding device for a hydraulic forging machine, comprising: a lower die, a forming groove on the upper surface of the lower die, a support groove on the rear surface of the lower die, support columns at the four corners of the support groove, a return spring sleeved on the outer surface of the support columns, a movable plate abutting the lower surface of the return spring, ejector columns fixedly connected to the four sides of the upper surface of the movable plate, a connecting block fixedly connected to the movable plate by connecting bolts and connecting nuts, a connecting plate fixedly connected to the lower surface of the connecting block, a support plate fixedly connected to the lower surface of the connecting plate, and connecting hydraulic pumps fixedly connected to the left and right sides of the upper surface of the support plate. By using the return spring to assist the movable plate in quickly resetting when the connecting hydraulic rod retracts, the power dependence of the connecting hydraulic pump is reduced, the resetting speed of the device is accelerated, and the time of a single forging cycle is shortened.

Description

Technical Field

[0001] This utility model relates to the field of forging demolding technology, and in particular to a demolding device for a hydraulic forging machine. Background Technology

[0002] In modern industrial production, hydraulic forging machines are widely used in the forging of metal parts due to their powerful pressure output and stable working performance. Demolding, as a crucial step in the hydraulic forging process, directly affects the production efficiency, quality, and continuous operation capability of the forgings.

[0003] Traditional demolding methods for hydraulic forging machines often have many limitations. Some demolding devices rely on manual assistance, which not only increases labor costs but also makes it difficult to ensure the timeliness and consistency of the demolding action, significantly reducing production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a demolding device for a hydraulic forging machine. When the connecting hydraulic rod retracts, the return spring assists the movable plate in quickly resetting, reducing the reliance on the power of the connecting hydraulic pump, accelerating the resetting speed of the device, and shortening the time of a single forging cycle. The connecting hydraulic rod can efficiently convert the hydraulic energy of the connecting hydraulic pump into mechanical energy, and directly drive the support plate to move up and down through the telescopic movement, realizing precise control of the ejection and resetting actions, and greatly improving the demolding efficiency.

[0005] To achieve the above objectives, a hydraulic forging machine demolding device is provided, comprising: a lower mold, a forming groove on the upper surface of the lower mold, a support groove on the rear surface of the lower mold, support columns at each of the four corners of the support groove, a return spring sleeved on the outer surface of each support column, a movable plate abutting the lower surface of the return spring, ejector columns fixedly connected to the four sides of the upper surface of the movable plate, a connecting block fixedly connected to the movable plate by connecting bolts and connecting nuts, a connecting plate fixedly connected to the lower surface of the connecting block, a support plate fixedly connected to the lower surface of the connecting plate, connecting hydraulic pumps fixedly connected to the left and right sides of the upper surface of the support plate, and connecting hydraulic rods fixedly connected to the output end of the connecting hydraulic pumps. All components work together to form a complete demolding structure, ensuring the forming and ejection of forgings, improving the automation and stability of demolding, and reducing labor costs.

[0006] According to the aforementioned hydraulic forging machine demolding device, the outer surface of the support column and the movable plate are slidably connected, and the ejector column extends into the interior of the forming groove. The sliding connection reduces wear on the movable plate, and the ejector column extending into the forming groove can directly push the forging, improving demolding reliability.

[0007] According to the aforementioned hydraulic forging machine demolding device, the ejector columns are located around the bottom of the forming groove, and the connecting blocks are symmetrically arranged on the rear surface of the movable plate. The distribution of the ejector columns around the perimeter ensures uniform stress on the forging, and the symmetrical arrangement of the connecting blocks ensures balanced stress on the movable plate and prevents skewing.

[0008] According to the aforementioned hydraulic forging machine demolding device, the number of connecting bolts corresponds to the number of connecting blocks, and the connecting plate is located between two connecting blocks. The correspondingly arranged bolts enhance the connection stability, and the connecting plate concentrates force for more efficient transmission and reduces component wear.

[0009] According to the aforementioned hydraulic forging machine demolding device, the connecting hydraulic pump and the connecting block are positioned parallel to each other, with the connecting hydraulic pump located behind the connecting plate. This parallel arrangement shortens the power transmission path, saves space with the rear layout, avoids component interference, and improves operating efficiency.

[0010] According to the aforementioned hydraulic forging machine demolding device, positioning blocks are fixedly connected to both the left and right sides of the lower die, and positioning holes are formed on the upper surface of the positioning blocks. The positioning blocks cooperate with the positioning holes to achieve precise installation of the lower die, ensuring accurate alignment with the upper die and improving forging precision.

[0011] According to the aforementioned hydraulic forging machine demolding device, the interior of the positioning hole is connected to the lower surface of the positioning block, and the positioning blocks are symmetrically arranged on the front and rear sides of the lower mold sidewall. The connected positioning hole design facilitates the through-hole fixing of the positioning component, and the symmetrically arranged positioning blocks enhance the installation stability of the lower mold.

[0012] According to the aforementioned hydraulic forging machine demolding device, the number of positioning holes and the number of positioning blocks are correspondingly set. This correspondence ensures that each positioning block can perform its positioning function, further guaranteeing the accuracy of the lower mold installation position.

[0013] The above-mentioned solution has the following beneficial effects:

[0014] This utility model includes a support groove, support column, return spring, movable plate, ejector column, connecting bolt, connecting nut, connecting block, connecting plate, support plate, connecting hydraulic pump, and connecting hydraulic rod. The return spring assists the movable plate in quickly resetting when the connecting hydraulic rod retracts, reducing reliance on the connecting hydraulic pump's power, accelerating the device's reset speed, and shortening the time of a single forging cycle. The connecting hydraulic rod efficiently converts the hydraulic energy of the connecting hydraulic pump into mechanical energy, directly driving the support plate's up-and-down movement through its telescopic motion, achieving precise control of ejection and reset actions, and significantly improving demolding efficiency.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a perspective view of a hydraulic forging machine demolding device according to the present invention;

[0018] Figure 2 This is a front view of a hydraulic forging machine demolding device according to the present invention;

[0019] Figure 3 This is a cross-sectional perspective view of a hydraulic forging machine demolding device according to the present invention;

[0020] Figure 4 For utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0021] Legend:

[0022] 1. Lower mold; 2. Forming groove; 3. Support groove; 4. Connecting block; 5. Connecting bolt; 6. Connecting nut; 7. Connecting plate; 8. Support plate; 9. Connecting hydraulic pump; 10. Connecting hydraulic rod; 11. Positioning block; 12. Positioning hole; 13. Support column; 14. Return spring; 15. Ejector column; 16. Movable plate. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1-4This utility model discloses a hydraulic forging machine demolding device, comprising: a lower mold 1, with a forming groove 2 on the upper surface of the lower mold 1, providing forming space for the forging and being a key area for material shaping during the forging process; a support groove 3 on the rear surface of the lower mold 1, providing space for subsequent support columns 13, movable plates 16, and other components to be installed and moved; support columns 13 are provided at the four corners of the support groove 3, providing vertical guidance and support for the movable plates 16 to ensure stable sliding; a return spring 14 is sleeved on the outer surface of the support columns 13, providing upward elastic force after the movable plates 16 move downward, assisting the movable plates 16 and related components to return to their original position; the lower surface of the return spring 14 abuts against the movable plates 16, which serve as the mounting carrier for ejector columns 15, and drives the ejector columns 15 to achieve ejection action through its own up-and-down movement; ejector columns 15 are fixedly connected to all four sides of the upper surface of the movable plates 16. 5 can move upward under the drive of the movable plate 16, ejecting the forging in the forming groove 2 to complete demolding. The movable plate 16 is fixedly connected to the connecting block 4 by the cooperation of the connecting bolt 5 and the connecting nut 6. The cooperation of the connecting bolt 5 and the connecting nut 6 can firmly connect the movable plate 16 and the connecting block 4, ensuring that the two move synchronously. The lower surface of the connecting block 4 is fixedly connected to the connecting plate 7. The connecting block 4 transmits the force of the movable plate 16 to the connecting plate 7, realizing the effective transmission of force. The lower surface of the connecting plate 7 is fixedly connected to the support plate 8. The connecting plate 7 transmits the force to the support plate 8. The support plate 8 provides stable installation support for the connecting hydraulic pump 9. The upper surface of the support plate 8 is fixedly connected to the connecting hydraulic pump 9 on both the left and right sides. The connecting hydraulic pump 9 serves as a power source to provide power for the extension and retraction of the connecting hydraulic rod 10. The output end of the connecting hydraulic pump 9 is fixedly connected to the connecting hydraulic rod 10. The connecting hydraulic rod 10 extends and retracts under the drive of the connecting hydraulic pump 9, thereby driving the support plate 8, the connecting plate 7 and other components to move up and down.

[0025] The outer surface of the support column 13 and the movable plate 16 are slidably connected. This sliding fit ensures that the movable plate 16 can move smoothly up and down along the axis of the support column 13, avoiding deviation. The ejector column 15 extends into the interior of the forming groove 2, allowing the ejector column 15 to directly act on the forging in the forming groove 2 to achieve ejection and demolding. The ejector columns 15 are located around the bottom of the inner surface of the forming groove 2. The ejector columns 15 distributed around the perimeter can apply force evenly from the bottom perimeter of the forging, ensuring that the forging is ejected smoothly and preventing deformation. The connecting blocks 4 are symmetrically arranged on the rear surface of the movable plate 16. The symmetrical arrangement of the connecting blocks 4 ensures that the movable plate 16 is subjected to balanced force, preventing tilting during movement. The number of connecting bolts 5 corresponds to the number of connecting blocks 4, ensuring that each connecting block 4 can be firmly connected to the movable plate 16 through the connecting bolts 5 and connecting nuts 6. The connecting plate 7 is located between two connecting blocks 4, so that the force transmitted by the two connecting blocks 4 can be concentrated on the connecting plate 7, ensuring the convergence and transmission of force. The position of the connecting hydraulic pump 9 is parallel to the position of the connecting blocks 4. The hydraulic pump 9 is positioned so that the driving force generated by the connecting hydraulic pump 9 can be transmitted more directly to the movable plate 16 through the relevant components, reducing force loss. The connecting hydraulic pump 9 is located behind the connecting plate 7, making reasonable use of space and avoiding movement interference with other components. Positioning blocks 11 are fixedly connected to both the left and right sides of the lower mold 1. The positioning blocks 11 are used for positioning and docking of the lower mold 1 with other equipment or structures to ensure the accuracy of the installation position of the lower mold 1. Positioning holes 12 are opened on the upper surface of the positioning blocks 11. Positioning pins and other components can be inserted into the positioning holes 12 to further enhance the positioning effect of the lower mold 1. The interior of the positioning holes 12 is connected to the lower surface of the positioning blocks 11, which facilitates the penetration of the positioning pins through the positioning blocks 11 and enhances the stability of the positioning. The positioning blocks 11 are symmetrically arranged on the front and rear sides of the side wall of the lower mold 1. The symmetrical positioning blocks 11 position the lower mold 1 from multiple directions to improve the positioning accuracy. The number of positioning holes 12 corresponds to the number of positioning blocks 11, ensuring that each positioning block 11 can achieve the positioning function through the positioning hole 12.

[0026] Working principle: First, the lower mold 1 is positioned and installed with the other structures of the hydraulic forging machine through the positioning hole 12 on the positioning block 11. The positioning pin passes through the positioning hole 12 to ensure that the lower mold 1 is accurately and stably positioned. Before forging, the connecting hydraulic pump 9 is in its initial state, the return spring 14 is not compressed, and the movable plate 16 is in a relatively low position under the support of the return spring 14. The top of the ejector column 15 is located at the bottom of the inner surface of the forming groove 2, which does not affect the material being put into the forming groove 2. During the forging process, the upper mold and the lower mold 1 are closed, and the material is shaped in the forming groove 2. At this time, the movable plate 16 and related parts remain stationary. After forging is completed, the upper mold and the lower mold 1 are separated, and the external controller controls and adjusts the connecting hydraulic pump. The hydraulic pump 9 drives the hydraulic rod 10 to extend. The upper surface of the hydraulic rod 10 is connected to the upper mold. According to the relative cooperation of the upper mold and the lower mold 1, the support plate 8 is pushed to move upward. The support plate 8 drives the connecting plate 7, the connecting block 4 and the movable plate 16 to slide upward along the support column 13. The return spring 14 is compressed. The ejector column 15 on the movable plate 16 moves upward synchronously and ejects the forging from the bottom of the forming groove 2, realizing demolding. After demolding, the support plate 8, the connecting plate 7 and other components move downward. The movable plate 16 slides downward along the support column 13 under the elastic force of the return spring 14 and resets. The ejector column 15 retracts to the bottom of the inner surface of the forming groove 2, waiting for the next forging cycle.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A hydraulic forging press knockout device comprising: The lower mold (1) has a forming groove (2) on its upper surface. The lower mold (1) has a support groove (3) on its rear surface. The support groove (3) has a support column (13) at each of its four corners. The support column (13) has a return spring (14) on its outer surface. The lower surface of the return spring (14) abuts against a movable plate (16). The upper surface of the movable plate (16) has an ejector column (15) fixedly connected around its perimeter. The movable plate (16) has a connecting block (4) fixedly connected to it by a connecting bolt (5) and a connecting nut (6). The lower surface of the connecting block (4) has a connecting plate (7) fixedly connected to it. The lower surface of the connecting plate (7) has a support plate (8) fixedly connected to it. The upper surface of the support plate (8) has a connecting hydraulic pump (9) fixedly connected to both sides. The output end of the connecting hydraulic pump (9) has a connecting hydraulic rod (10) fixedly connected to it.

2. The hydraulic forging machine demolding device according to claim 1, characterized in that: The outer surface of the support column (13) and the movable plate (16) are slidably connected, and the ejector column (15) extends into the interior of the forming groove (2).

3. The demolding device for a hydraulic forging machine according to claim 1, characterized in that: The ejector column (15) is located around the bottom of the inner surface of the forming groove (2), and the connecting block (4) is symmetrically arranged on the rear surface of the movable plate (16).

4. The demolding device for a hydraulic forging machine according to claim 1, characterized in that: The number of connecting bolts (5) and the number of connecting blocks (4) are set in correspondence, and the connecting plate (7) is located between the two connecting blocks (4).

5. A hydraulic forging machine demolding device according to claim 1, characterized in that: The position of the connecting hydraulic pump (9) is parallel to the position of the connecting block (4), and the connecting hydraulic pump (9) is located behind the connecting plate (7).

6. The demolding device for a hydraulic forging machine according to claim 1, characterized in that: The lower mold (1) is fixedly connected to both the left and right sides with positioning blocks (11), and the upper surface of the positioning blocks (11) is provided with positioning holes (12).

7. A hydraulic forging machine demolding device according to claim 6, characterized in that: The interior of the positioning hole (12) is connected to the lower surface of the positioning block (11), and the positioning block (11) is symmetrically arranged on the front and rear sides of the side wall of the lower mold (1).

8. A hydraulic forging machine demolding device according to claim 6, characterized in that: The number of positioning holes (12) and the number of positioning blocks (11) are set accordingly.

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