A multi-directional die forging hydraulic press worktable

Abstract

This utility model discloses a multi-directional forging hydraulic press worktable, including a machine body, a worktable pad, a horizontal key, a vertical key, and a wedge assembly. A gap exists between the side of the worktable pad and the machine body, and the wedge assembly is installed in the gap and fixedly mounted on the machine body. A first keyway is provided on the bottom surface of the worktable pad, and a second keyway is provided on the machine body. The horizontal key is located within the first and second keyways. A third keyway is also provided on the bottom surface of the worktable pad, and a fourth keyway is provided on the machine body. The vertical key is located within the third and fourth keyways, and cooperates with the wedge assembly to clamp the worktable pad. When the worktable pad of this utility model is subjected to horizontal lateral force, the force can be transmitted to the machine body through the wedges. The wedges have a large bearing area, which helps to disperse stress and provides good stability and reliability. The horizontal and vertical keys mainly serve as guides and limiters, do not bear horizontal lateral forces, and have a long service life.

Description

Technical Field

[0001] This utility model belongs to the field of multi-directional die-segment hydraulic presses, and more specifically, relates to a worktable for a multi-directional die-forging hydraulic press. Background Technology

[0002] When a multi-directional forging hydraulic press is working, the horizontal cylinder generates a horizontal lateral force on the forging. This horizontal lateral force is transmitted sequentially through the die and die base to the worktable pad. In the traditional worktable structure design of a multi-directional forging hydraulic press, the worktable pad and the machine body are usually connected by pins and keys, and the horizontal lateral force is ultimately transmitted to the machine body through the pins and keys.

[0003] However, the horizontal lateral forces applied by multi-directional forging hydraulic presses are often enormous, and the pins and keys are subjected to huge shear forces. This necessitates that the pins, keys, and their mounting holes be designed to be sufficiently large. In some large multi-directional forging hydraulic presses, the pins, keys, and mounting holes may even extend through the entire worktable pad and machine body surface. Such large-sized pin and key designs bring many serious drawbacks. First, the large pins and keys extending through the worktable pad and machine body surface create large holes in these critical components, significantly weakening the strength and rigidity of the machine body and worktable pad. Second, the pin and key mating parts are hidden between the worktable pad and the machine body. Once the equipment has been in service for a period of time, if the pin and key mating fails, replacement becomes extremely difficult. The mold, mold base, and worktable pad must be removed before the pins and keys can be replaced, resulting in a huge workload and long repair time, severely impacting production schedules. Summary of the Invention

[0004] In view of the above-mentioned defects or improvement needs of the existing technology, this utility model provides a multi-directional forging hydraulic press worktable. When the worktable pad is subjected to the horizontal lateral force of the horizontal cylinder, the force on the worktable pad will be transmitted to the machine body through the wedge assembly and will hardly be transmitted to the vertical and horizontal flat keys. The vertical and horizontal flat keys mainly play the role of limiting and guiding, and the key fit is not easy to fail.

[0005] To achieve the above objectives, according to this utility model, a multi-directional forging hydraulic press worktable is provided, comprising a machine body, a worktable pad, a horizontal key, a vertical key, and a wedge assembly, wherein: The workbench pad is arranged horizontally and fixedly connected to the machine body by threaded fasteners for mounting the mold base or mold. There is a gap between the side of the workbench pad and the machine body. The wedge assembly is installed in the gap and is fixedly mounted on the machine body. The bottom surface of the worktable pad is provided with a horizontal first keyway, and the machine body is provided with a horizontal second keyway at a position corresponding to the first keyway. The horizontal key is provided in the first keyway and the second keyway to provide guidance for the worktable pad to move in the horizontal direction and to limit its displacement in the vertical direction. The bottom surface of the worktable pad is also provided with a vertical third keyway, and the machine body is provided with a vertical fourth keyway at the position corresponding to the third keyway. The vertical flat key is provided in the third keyway and the fourth keyway, and the vertical flat key cooperates with the wedge assembly to clamp the worktable pad.

[0006] Furthermore, the vertical flat key is perpendicular to the horizontal flat key.

[0007] Furthermore, the lengths of the first keyway and the horizontal key are L1 and L2, respectively, and the widths of the third keyway and the vertical key are B1 and B2, respectively, with L1 > L2, B1 > B2, and L1-L2 > B1-B2.

[0008] Furthermore, the length of the second keyway is the same as the length of the horizontal key, and the width of the fourth keyway is the same as the width of the vertical key.

[0009] Furthermore, the wedge assembly includes a wedge, a set screw, and a locking screw. The wedge is a right prism with a right-angled trapezoidal base. The inclined surface of the wedge is in contact with the inclined surface of the worktable pad, and the vertical surface of the wedge is in contact with the vertical surface of the machine body. There is a gap between the lower end of the wedge and the machine body to allow for adjustment of the wedge's wedging depth. The lower end of the set screw passes through the wedge and abuts against the machine body. The threaded portion of the set screw engages with a threaded hole on the wedge, allowing the wedging depth of the wedge to be adjusted by turning the set screw. The locking screw passes through the wedge and connects to a threaded hole on the machine body to press the wedge into the gap between the worktable pad and the machine body.

[0010] Preferably, multiple wedge assemblies are provided.

[0011] Preferably, the workbench pad is provided with a mounting groove for accommodating a mold base or mold.

[0012] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects: 1) In this utility model, a multi-directional forging hydraulic press worktable is provided. When the forging in the mold on the worktable pad is subjected to the horizontal lateral force of the horizontal cylinder of the multi-directional forging hydraulic press, the force can be transmitted to the machine body through the wedge assembly, instead of the pins and keys in the traditional structure bearing the huge horizontal lateral force. The wedge assembly has a large bearing area, which is conducive to stress dispersion and has good stability and reliability. The flat key between the worktable pad and the machine body mainly plays the role of guidance and limit, and does not bear the horizontal lateral force. In this way, the size of the flat key and keyway does not need to be very large, avoiding the risk of the decrease in strength and rigidity of the machine body and worktable pad due to the machining of large-sized keyways, and avoiding the problem of failure of the traditional pin and key mating method due to the huge shear force.

[0013] 2) The multi-directional forging hydraulic press worktable of this utility model has a reasonable structural design, which can meet the requirements of high precision, high stability and high load-bearing capacity of the multi-directional forging hydraulic press in the metal forging process. Moreover, it is easy to adjust, without disassembling the mold base and worktable pad. The loose gap of the worktable pad can be quickly eliminated by directly adjusting the wedge iron assembly, which reduces the downtime and maintenance cost of the equipment, thereby ensuring the long-term stable service of the equipment. Attached Figure Description

[0014] Figure 1 This is a top view of the present invention; Figure 2 This is the front view of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional view of the wedge assembly in this utility model.

[0015] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Machine body; 2. Wedge assembly; 2.1. Wedge; 2.2. Locking screw; 2.3. Set screw; 3. Worktable pad; 3.1. Mounting slot; 4. Horizontal key; 5. Vertical key. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0017] Reference Figures 1-4A multi-directional forging hydraulic press worktable includes a machine body 1, a worktable pad 3, a horizontal key 4, a vertical key 5, and a wedge assembly 2.

[0018] The workbench pad 3 is arranged horizontally and fixedly connected to the machine body 1 by threaded fasteners for mounting the mold base or mold.

[0019] There is a gap between the side of the workbench pad 3 and the machine body 1. The wedge assembly 2 is installed in the gap and is fixedly installed on the machine body 1.

[0020] The bottom surface of the worktable pad 3 is provided with a horizontal first keyway, and the machine body 1 is provided with a horizontal second keyway at a position corresponding to the first keyway. The horizontal key 4 is provided in the first keyway and the second keyway to provide guidance for the horizontal movement of the worktable pad 3 and to limit the vertical displacement of the worktable pad 3.

[0021] The bottom surface of the worktable pad 3 is also provided with a vertical third keyway, and the machine body is provided with a vertical fourth keyway at the position corresponding to the third keyway. The vertical flat key 5 is provided in the third keyway and the fourth keyway, and the vertical flat key 5 cooperates with the wedge assembly 2 to clamp the worktable pad 3.

[0022] Furthermore, the vertical flat key 5 is perpendicular to the horizontal flat key 4.

[0023] Furthermore, the lengths of the first keyway and the horizontal key 4 are L1 and L2, respectively, and the widths of the third keyway and the vertical key 5 are B1 and B2, respectively, with L1 > L2, B1 > B2, and L1-L2 > B1-B2.

[0024] Furthermore, the length of the second keyway is the same as the length of the horizontal key 4, and the width of the fourth keyway is the same as the width of the vertical key 5.

[0025] The above-mentioned dimensional relationships of the horizontal key 4, the vertical key 5, and all keyways (including the first keyway, the second keyway, the third keyway, and the fourth keyway) are defined to ensure that the horizontal key 4 and the vertical key 5 can be well positioned on the machine body 1, and the vertical displacement of the worktable pad 3 on the machine body 1 is also effectively constrained, allowing only a small displacement in the horizontal direction.

[0026] Furthermore, the wedge assembly 2 includes a wedge 2.1, a set screw 2.3, and a locking screw 2.2. The wedge 2.1 is a right prism with a right trapezoidal base. The inclined surface of the wedge 2.1 is in contact with the inclined surface of the worktable pad 3, and the vertical surface of the wedge 2.1 is in contact with the vertical surface of the machine body 1. There is a gap between the lower end face of the wedge 2.1 and the machine body 1 to reserve adjustment space for the wedging depth of the wedge 2.1. Furthermore, the locking screw 2.2 passes through the wedge 2.1 and connects to the threaded hole on the machine body 1, so as to press the wedge 2.1 into the gap between the worktable pad 3 and the machine body 1, so that the wedge 2.1 forms a tight fit and stable support between the worktable pad 3 and the machine body 1, which is beneficial to the transmission of horizontal lateral loads.

[0027] Furthermore, the lower end of the set screw 2.3 passes through the wedge 2.1 and abuts against the machine body 1. The threaded portion of the set screw 2.3 engages with the threaded hole on the wedge 2.1 so that the wedging depth of the wedge 2.1 can be adjusted by turning the set screw 2.3, thereby making the worktable pad 3 and the first flat key 5 reach a wedging state.

[0028] The locking screw 2.2 applies a downward clamping force to the wedge 2.1, and the set screw 2.3 applies an upward pushing force to the wedge 2.1. This "pressing and pushing" action can firmly fix the position of the wedge 2.1 and prevent the wedge 2.1 from loosening.

[0029] Preferably, the wedge assembly is provided with multiple wedges 2.1. The arrangement of multiple wedges 2.1 can improve the overall stability and load-bearing capacity of the worktable, ensuring that the worktable pad 3 maintains a stable posture when subjected to horizontal forces from different positions, thus maintaining the flatness and reliability of the worktable. At the same time, multiple wedges 2.1 help to disperse the lateral loads from the worktable pad 3, improving the stress state of the worktable pad 3 and the machine body 1.

[0030] Preferably, the workbench pad 3 is provided with a mounting groove for accommodating the mold base or mold. This facilitates the installation and fixation of the mold base or mold, provides a stable and reliable foundation for the mold base or mold, and ensures that it can maintain an accurate installation position and stable working state during operation.

[0031] Reference Figure 1 , Figure 2During installation, first loosen the threaded fasteners on the worktable pad 3, then adjust the wedge assembly 2 to move the worktable pad 3 slightly to the right in the horizontal direction until the left side of the first keyway of the worktable pad 3 is in contact with the left side of the vertical flat key 5. Finally, tighten the threaded fasteners between the worktable pad 3 and the machine body 1. In this way, during horizontal forging, the horizontal lateral force transmitted from the mold or mold base to the worktable pad 3 is finally transmitted to the machine body 1 through the wedge assembly 2. The vertical flat key 5 and the horizontal flat key 4 mainly serve as guides and limiters and do not bear horizontal lateral forces. Therefore, the keyways that cooperate with them (including the first keyway, the second keyway, the third keyway, and the fourth keyway) do not need to be very large, which helps to ensure the strength and rigidity of the machine body 1 and the worktable pad 3. After the equipment has been in service for a period of time, the threaded fasteners on the worktable pad 3 may become loose, causing the worktable pad 3 to become loose. Alternatively, the deformation of the machine body 1 may cause the wedge 2.1 to wear and become loose. The wedge 2.1 can be wedged downward by adjusting the locking screw 2.2 and the set screw 2.3, thereby allowing the worktable pad 3 to return to a wedged state and eliminating the looseness.

[0032] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-directional forging hydraulic press worktable, comprising a machine body (1), a worktable pad (3), a horizontal key (4), a vertical key (5), and a wedge assembly (2), wherein: The workbench pad (3) is arranged horizontally and fixedly connected to the machine body (1) by threaded fasteners for mounting the mold base or mold; There is a gap between the side of the workbench pad (3) and the machine body (1), the wedge assembly (2) is provided in the gap, and the wedge assembly (2) is fixedly installed on the machine body (1); The bottom surface of the worktable pad (3) is provided with a horizontal first keyway, and the machine body (1) is provided with a horizontal second keyway at a position corresponding to the first keyway. The horizontal flat key (4) is provided in the first keyway and the second keyway. The bottom surface of the worktable pad (3) is also provided with a vertical third keyway, and the machine body (1) is provided with a vertical fourth keyway at the position corresponding to the third keyway. The vertical flat key (5) is provided in the third keyway and the fourth keyway, and the vertical flat key (5) cooperates with the wedge assembly (2) to clamp the worktable pad (3).

2. A multi-ram hydraulic press table according to claim 1, wherein, The vertical flat key (5) is perpendicular to the horizontal flat key (4).

3. A multi-ram hydraulic press table as defined in claim 2, wherein, The lengths of the first keyway and the horizontal key (4) are L1 and L2, respectively, and the widths of the third keyway and the vertical key (5) are B1 and B2, respectively, with L1 > L2, B1 > B2, and L1-L2 > B1-B2.

4. A multi-ram hydraulic press table as defined in claim 3, wherein, The length of the second keyway is the same as the length of the horizontal key (4), and the width of the fourth keyway is the same as the width of the vertical key (5).

5. A hydraulic press table for multi-directional die forging according to any one of claims 1-4, characterized in that, The wedge assembly (2) includes a wedge (2.1), a set screw (2.3), and a locking screw (2.2).

6. The multi-directional forging hydraulic press worktable according to claim 5, characterized in that, The wedge (2.1) is a right prism with a right trapezoidal base. The inclined surface of the wedge (2.1) is in contact with the inclined surface of the worktable pad (3). The vertical surface of the wedge (2.1) is in contact with the vertical surface of the machine body (1). There is a gap between the lower end of the wedge (2.1) and the machine body (1).

7. The multi-directional forging hydraulic press worktable according to claim 5, characterized in that, The lower end of the set screw (2.3) passes through the wedge (2.1) and abuts against the machine body (1). The threaded portion of the set screw (2.3) engages with the threaded hole on the wedge (2.1).

8. The multi-directional forging hydraulic press worktable according to claim 5, characterized in that, The locking screw (2.2) passes through the wedge (2.1) and connects to the threaded hole on the body (1).

9. A multi-directional forging hydraulic press worktable according to any one of claims 1-4, characterized in that, The wedge assembly (2) is provided in multiple forms.

10. A multi-directional forging hydraulic press worktable according to any one of claims 1-4, characterized in that, The workbench pad (3) is provided with a mounting groove (3.1) for accommodating the mold base or mold.

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