Rapid replacement device for titanium alloy hot forging die

Abstract

The utility model relates to the technical field of hot forging dies, in particular to a rapid replacement device for a titanium alloy hot forging die. The device comprises a main die holder, a die and an auxiliary die holder. An inverted trapezoidal sliding block is fixed at the top of the main mold base; a liftable limiting ring is arranged in the main die holder, and a limiting groove is formed in the bottom of the die. A connecting plate driven by a screw rod is arranged in an inner cavity of the auxiliary die holder and is fixed with the limiting ring; a polygonal twisting block on the top of the rotating screw can control the limiting ring to ascend and descend. When the limiting ring ascends and is inserted into the limiting groove, horizontal limiting of the die is completed. A rotating ring is additionally arranged in the main die holder, and a supporting block is slidably connected into a side groove in the inner wall of the rotating ring through a pressure spring; the push rod outside the rotating ring is pushed to enable the supporting block to move below the limiting ring to disperse the load. According to the device, through vertical limiting of the sliding block and the sliding groove, horizontal limiting of the limiting ring and a load dispersing structure of the supporting block, the mold is rapidly disassembled and assembled, and operation steps are reduced; the built-in design of the fixing part avoids scale corrosion, and meanwhile the structural stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of hot forging die technology, and in particular to a quick-change device for titanium alloy hot forging dies. Background Technology

[0002] In the hot forging process of titanium alloys, the mold is usually fastened with bolts. This method involves many steps and the disassembly or installation process is cumbersome. At the same time, the bolts are exposed to high temperature environment for a long time. The oxide scale that falls off during forging will react with the surface of the bolts, resulting in a decrease in thread strength. The acidic or alkaline substances in the oxide scale may also corrode the bolts, forming stress concentration points and accelerating fatigue crack propagation. To avoid the above problems, the bolt area needs to be cleaned frequently, which further increases the maintenance burden. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies, such as cumbersome procedures and the reaction of oxide scale that falls off during forging with the surface, leading to a decrease in thread strength. Therefore, this invention proposes a quick-change device for titanium alloy hot forging dies.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A quick-change device for titanium alloy hot forging dies includes a main die holder;

[0006] The mold has a slider fixedly installed on the top of the main mold base, a groove that cooperates with the slider on the bottom of the mold, a limiting ring that can move up and down inside the main mold base, and a limiting groove on the bottom of the mold.

[0007] A secondary mold base is fixedly installed on one side of the main mold base. The secondary mold base has an inner cavity that is connected to the lifting space of the limiting ring. A connecting plate is vertically slidably installed in the inner cavity. One end of the connecting plate is fixedly connected to the limiting ring. A screw is rotatably installed in the inner cavity. The connecting plate is threaded onto the screw. The top end of the screw extends to the outside of the secondary mold base and is provided with a polygonal torsion block.

[0008] The screw is driven to rotate by rotating polygonal torsion blocks, which in turn drives the connecting plate and the limiting ring to rise and fall. When the limiting ring rises and inserts into the limiting groove, the mold is fixed.

[0009] In one possible design, a sealing block is fixedly installed on the top of the main mold base. When the mold slides to a designated position, the side wall of the mold is flush with the side wall of the sealing block to close the groove opening.

[0010] In one possible design, a rotating ring is rotatably arranged inside the main mold base, and a limiting ring is located inside the rotating ring. Multiple side grooves are opened on the inner wall of the rotating ring, and a support block is slidably arranged inside the side groove. The end of the support block extends to the bottom of the limiting ring for support, and a compression spring is arranged between the side wall of the support block and the inner wall of the side groove.

[0011] When the rotating ring rotates to the point where the support block and the limiting ring are in motion, the compression spring pushes the support block outward to the bottom of the limiting ring to provide support and distribute the load.

[0012] In one possible design, the top of the rotating ring is provided with a clearance groove, which is located below the connecting plate to avoid motion interference with the connecting plate.

[0013] In one possible design, the side wall of the main mold base is provided with a side hole, which is connected to the rotation space of the rotating ring. A push rod is fixedly provided on the outer wall of the rotating ring, and the push rod extends to the outside through the side hole.

[0014] A protective cover is provided above the sub-mold base, and the protective cover is fixedly connected to the push rod;

[0015] When the push rod is pushed, it causes the rotating ring to rotate and the cover to move, and the cover covers the polygonal twist block.

[0016] In one possible design, the slider is inverted trapezoidal to prevent the mold from falling off during sliding.

[0017] In one possible design, the device is mounted on the worktable or hydraulic end of the forging press to enable the replacement of upper and lower dies.

[0018] In this application, during actual use, the worker pushes the mold along the slider to the top of the main mold base until the end of the slide groove abuts against the end of the slider. Then, using tools such as an electric wrench, the screw with the polygonal torsion block is driven to rotate, thereby causing the connecting plate to move upward. The connecting plate will cause the limiting ring to move upward, so that the top of the limiting ring is inserted into the inside of the limiting groove, thereby limiting and fixing the mold and completing the initial installation. Afterward, the worker pushes the push rod, causing it to rotate the rotating ring. When the support block moves to the position where the moving space of the limiting ring is connected, the support block will be displaced outward by the force of the compression spring, causing its end to move below the limiting ring for support. When the push rod is rotated, the cover will also rotate, thereby covering the polygonal torsion block.

[0019] When disassembly and replacement are required, push the push rod in the opposite direction to make it rotate the rotating ring. At this time, the inclined surface of the support block will abut against the inner wall of the connecting point, thereby retracting into the inside of the side groove and disengaging from below the limiting ring. Then, push the screw in the opposite direction to make the limiting ring move downward and disengage from the inside of the limiting groove, thereby releasing the limiting fixation of the mold and realizing disassembly.

[0020] In this utility model, the quick-change device for titanium alloy hot forging die can achieve die installation and fixation through the cooperation of vertical limiting of the slider and horizontal limiting of the limiting ring, which can reduce the operation steps while still maintaining the original fixing effect.

[0021] In this utility model, the quick-change device for titanium alloy hot forging die provides support for the lifting limit ring through the inclined block, thereby ensuring that it supports and distributes the load during forging, avoiding breakage at the screw connection, and thus ensuring the practicality of the device.

[0022] In this invention, the fixing mechanism is placed inside the mold base to avoid contact with oxide scale, thereby reducing the original operation steps and simplifying the process. It also ensures the stability of the device through bidirectional limiting and further support for the limiting. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of a quick-change device for titanium alloy hot forging dies proposed in this utility model;

[0024] Figure 2 This is an exploded top view of the structure of a quick-change device for titanium alloy hot forging dies proposed in this utility model;

[0025] Figure 3 This is an exploded bottom view of the structure of a quick-change device for titanium alloy hot forging dies proposed in this utility model;

[0026] Figure 4 This is a cross-sectional structural diagram of a quick-change device for titanium alloy hot forging dies proposed in this utility model.

[0027] Figure 5 This is a cross-sectional planar structural diagram of the rotating ring of a quick-change device for titanium alloy hot forging dies proposed in this utility model.

[0028] Figure 6 This is a schematic diagram of the actual assembly structure of a quick-change device for titanium alloy hot forging dies proposed in this utility model.

[0029] In the diagram: 1. Main mold base; 2. Mold; 3. Rotary ring; 4. Side hole; 5. Push rod; 6. Secondary mold base; 7. Protective cover; 8. Slide groove; 9. Slider; 10. Limiting ring; 11. Sealing block; 12. Limiting groove; 13. Support block; 14. Compression spring; 15. Side groove; 16. Connecting plate; 17. Relief groove; 18. Screw; 19. Polygonal torsion block; 20. Forging press. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] In one embodiment: Reference Figure 1-3 A replacement device for changing molds of a specified shape according to processing requirements includes: a main mold base 1, a mold 2, and a secondary mold base 6. An inverted trapezoidal slider 9 is fixedly mounted on the top of the main mold base 1. A groove 8 that mates with the slider 9 is opened at the bottom of the mold 2. During installation, the mold 2 is pushed along the slider 9 until the end of the groove 8 abuts against the slider 9. A liftable limiting ring 10 is provided inside the main mold base 1. A corresponding limiting groove 12 is opened at the bottom of the mold 2. After the limiting ring 10 rises, it forms a vertical limiting position with the limiting groove 12.

[0032] refer to Figure 4 The secondary mold base 6 is fixed to the side of the main mold base 1. Its inner cavity is connected to the lifting space of the limiting ring 10. A connecting plate 16 is vertically slidably arranged in the inner cavity. One end of the connecting plate 16 is fixedly connected to the outer wall of the limiting ring 10. A screw 18 is rotatably arranged in the inner cavity. The connecting plate 16 is threaded onto the outer wall of the screw 18. The top end of the screw 18 extends to the outside of the secondary mold base 6 and is provided with a polygonal torsion block 19. By driving the torsion block 19 to rotate with an electric wrench, the connecting plate 16 and the limiting ring 10 can be driven to complete the lifting action.

[0033] Specifically, the workers push the mold 2 along the slider 9 to the top of the main mold base 1 until the end of the slide groove 8 abuts against the end of the slider 9. Then, using tools such as an electric wrench, the screw 18 with the polygonal torsion block 19 is driven to rotate, thereby driving the connecting plate 16 to move upward. The connecting plate 16 will drive the limiting ring 10 to move upward, so that the top of the limiting ring 10 is inserted into the inside of the limiting groove 12, thereby limiting and fixing the mold 2 and completing the initial installation.

[0034] The top of the main mold base 1 is also provided with a sealing block 11. When the mold 2 slides to the designated position, its side wall will be flush with the side wall of the sealing block 11 to seal the opening of the slide groove 8 and prevent foreign objects from entering.

[0035] This application can be used in the field of hot forging dies, or in other fields applicable to this application.

[0036] In another embodiment: Reference Figure 4-5 A quick-change device for titanium alloy hot forging dies is disclosed to further improve the support stability of the device. Applied to the field of hot forging dies, a rotating ring 3 is rotatably mounted inside the main die base 1, and a limiting ring 10 is located inside the rotating ring 3. Multiple side grooves 15 are formed on the inner wall of the rotating ring 3, and support blocks 13 are slidably mounted within the side grooves 15. The ends of the support blocks 13 extend below the limiting ring 10 to form a secondary support structure. Compression springs 14 are provided within the side grooves 15 to provide a reset force.

[0037] The staff pushes the push rod 5, causing it to rotate the rotating ring 3. When the support block 13 moves to the position where the limit ring 10 is connected, the support block 13 will be moved outward by the force of the compression spring 14, so that its end moves below the limit ring 10, thereby providing support.

[0038] A clearance groove 17 is provided at the top to avoid motion interference with the connecting plate 16.

[0039] The main mold base 1 has a side hole 4 on its side wall, and a push rod 5 is fixedly installed on the outer wall of the rotating ring 3. The push rod 5 extends to the outside through the side hole 4 for operation. The upper part of the auxiliary mold base 6 is fixedly connected to the push rod 5 through a cover 7. When the cover 7 rotates, it can cover the polygonal twist block 19.

[0040] refer to Figure 6 The main mold base 1 of the device is fixedly installed on the worktable or hydraulic end of the forging press 20, so as to realize the installation of the upper and lower molds respectively.

[0041] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0042] 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 quick-change device for titanium alloy hot forging dies, characterized in that, include: Main mold base (1); The mold (2) has a slider (9) fixedly installed on the top of the main mold base (1), and a groove (8) that cooperates with the slider (9) is opened at the bottom of the mold (2). A limiting ring (10) that can move up and down is provided inside the main mold base (1), and a limiting groove (12) is opened at the bottom of the mold (2). A secondary mold base (6) is fixedly set on one side of the main mold base (1). The secondary mold base (6) has an inner cavity. The inner cavity is connected to the lifting space of the limiting ring (10). A connecting plate (16) is vertically slidably arranged in the inner cavity. One end of the connecting plate (16) is fixedly connected to the limiting ring (10). A screw (18) is rotatably arranged in the inner cavity. The connecting plate (16) is threaded on the screw (18). The top end of the screw (18) extends to the outside of the secondary mold base (6) and is provided with a polygonal torsion block (19). The screw (18) is driven to rotate by rotating the polygonal torsion block (19), thereby driving the connecting plate (16) and the limiting ring (10) to rise and fall. When the limiting ring (10) rises and inserts into the limiting groove (12), the mold (2) is fixed.

2. The quick-change device for titanium alloy hot forging dies according to claim 1, characterized in that, A sealing block (11) is fixedly installed on the top of the main mold base (1). When the mold (2) slides to the designated position, the side wall of the mold (2) is flush with the side wall of the sealing block (11) to close the opening of the slide groove (8).

3. The quick-change device for titanium alloy hot forging dies according to claim 2, characterized in that, The main mold base (1) is rotatably provided with a rotating ring (3), and the limiting ring (10) is located inside the rotating ring (3). The inner wall of the rotating ring (3) is provided with multiple side grooves (15). A support block (13) is slidably provided inside the side groove (15). The end of the support block (13) extends to the bottom of the limiting ring (10) for support. A compression spring (14) is provided between the side wall of the support block (13) and the inner wall of the side groove (15). When the rotating ring (3) rotates to the point where the support block (13) and the limiting ring (10) are connected in the moving space, the compression spring (14) pushes the support block (13) to move outward to below the limiting ring (10) to provide support and distribute the load.

4. The quick-change device for titanium alloy hot forging dies according to claim 3, characterized in that, The top of the rotating ring (3) is provided with a relief groove (17), which is located below the connecting plate (16) to avoid motion interference with the connecting plate (16).

5. The quick-change device for titanium alloy hot forging dies according to claim 4, characterized in that, The main mold base (1) has a side hole (4) on its side wall. The side hole (4) is connected to the rotation space of the rotating ring (3). A push rod (5) is fixedly installed on the outer wall of the rotating ring (3). The push rod (5) extends to the outside through the side hole (4). A cover (7) is provided above the sub-mold base (6), and the cover (7) is fixedly connected to the push rod (5); When the push rod (5) is pushed, the rotating ring (3) rotates and the cover (7) moves, and the cover (7) covers the polygonal twist block (19).

6. The quick-change device for titanium alloy hot forging dies according to claim 5, characterized in that, The slider (9) is in the shape of an inverted trapezoid to prevent the mold (2) from falling off during the sliding process.

7. A quick-change device for titanium alloy hot forging dies according to any one of claims 1 to 6, characterized in that, The device is installed on the worktable or hydraulic end of the forging press to enable the replacement of the upper and lower dies (2).

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