A compression-shear coupling forging experimental device

Abstract

The utility model discloses a kind of compression shear coupling forging experimental devices, belong to metal material forging technology field, including bottom plate, the lower anvil assembly of being located above bottom plate, the upper anvil assembly and horizontal drive assembly of being located above lower anvil assembly and being cooperated with lower anvil assembly while with press slide synchronous motion;Wherein, bottom plate is equipped with the anti-offset load structure for limiting the deviation of upper anvil assembly and the pressure-receiving platform of supporting lower anvil assembly, upper anvil assembly and anti-offset load structure form the cooperation of being slidable up and down by guide structure, lower anvil assembly and pressure-receiving platform form the cooperation of being slidably horizontal by guide structure, horizontal drive assembly drives lower anvil assembly along pressure-receiving platform horizontal reciprocating motion.The utility model does not need to carry out structural modification to ordinary press, combines special technology with general equipment, reduces the application threshold of compression shear coupling forging technology, meets the demand of laboratory research and small batch production.

Description

Technical Field

[0001] This utility model relates to the field of metal material forging technology, and in particular to a pressure-shear coupling forging experimental device. Background Technology

[0002] Pressure-shear coupled forging technology is an innovative technology in the field of metal forging forming and shaping. By simultaneously applying pressure and shear force, it can effectively improve the internal structure of metal materials and enhance the mechanical properties of forgings, making it of significant application value in the manufacture of high-performance metal components. Current pressure-shear coupled forging technology mainly relies on dedicated pressure-shear coupled free forging hydraulic presses. These specialized equipment are complex in structure and expensive to manufacture, making them difficult to popularize in ordinary laboratories or small- to medium-sized production enterprises.

[0003] Ordinary forging presses, as the most widely used forging equipment, have advantages such as simple structure, low cost, and convenient operation. However, they also have inherent defects: First, the lower anvil of ordinary presses is a fixed structure, which cannot achieve horizontal reciprocating translational motion and cannot meet the shear force requirements of pressure-shear coupling forging. Second, the slider design of ordinary presses can only withstand axial pressure and cannot bear the horizontal eccentric load generated during pressure-shear coupling. If directly used for pressure-shear coupling forging, it is easy to cause slider deformation and equipment damage, which seriously affects the service life and operational safety of the press. Third, the existing technology lacks special tooling for pressure-shear coupling forging that can be adapted to ordinary presses, which greatly limits the experimental research and small-batch production of pressure-shear coupling forging technology and restricts the promotion and application of this technology.

[0004] Therefore, there is an urgent need for a pressure-shear coupling forging experimental device that can be adapted to ordinary presses, balance horizontal loads, and has precise motion control. Utility Model Content

[0005] To address the problems of existing technologies, such as the inability of ordinary presses to meet the shear force requirements of pressure-shear coupling forging, the inability of ordinary presses to withstand the horizontal eccentric load generated during pressure-shear coupling, and the lack of specialized tooling for pressure-shear coupling forging adapted to ordinary presses, this invention provides a pressure-shear coupling forging experimental device. This device can be installed on an ordinary forging press to achieve pressure-shear coupling free forging of small forgings.

[0006] The technical solution adopted by this utility model for a compression-shear coupling forging experimental device is as follows: A pressure-shear coupling forging experimental device includes a base plate, a lower anvil assembly located above the base plate, an upper anvil assembly located above the lower anvil assembly and cooperating with the lower anvil assembly while moving synchronously with the press slide, and a horizontal drive assembly. The base plate is provided with an anti-eccentric load structure for limiting the offset of the upper anvil assembly and a pressure-bearing platform for supporting the lower anvil assembly. The upper anvil assembly and the anti-eccentric load structure are connected by a guide structure to form a sliding fit that can slide vertically, and the lower anvil assembly and the pressure-bearing platform are connected by a guide structure to form a sliding fit that can slide horizontally. The horizontal drive assembly drives the lower anvil assembly to reciprocate horizontally along the pressure-bearing platform.

[0007] A further improvement of the present invention is that the anti-eccentric load structure includes two U-shaped guide columns symmetrically arranged on the base plate, each U-shaped guide column having a stiffening plate on its outer side, and a tie rod between the corresponding stiffening plates of each U-shaped guide column.

[0008] A further improvement of this utility model is that the pressure-bearing platform is set between two U-shaped guide columns and connected to the base plate. The top and both sides of the pressure-bearing platform are provided with guide structures, and the length of the pressure-bearing platform is not less than the maximum translation distance of the lower anvil assembly.

[0009] A further improvement of the present invention is that the upper anvil assembly includes an upper anvil body, a connecting plate disposed on the top of the upper anvil body, an upper anvil pad disposed on the bottom of the upper anvil body, and an upper anvil slide adapted to the guide structure on the anti-eccentric load structure; wherein, the top of the connecting plate is connected to the press slide block.

[0010] A further improvement of the present invention is that the guiding structure includes guide slides disposed on the U-shaped guide column and the pressure plate; wherein, each U-shaped guide column has three inner sidewalls provided with guide slides that cooperate with the upper anvil slide, and the top and sidewalls of the pressure plate are provided with guide slides that cooperate with the lower anvil assembly.

[0011] A further improvement of the present invention is that the lower anvil assembly includes a lower anvil body and a lower anvil pad plate disposed on the top of the lower anvil body; wherein, the bottom of the lower anvil body is provided with an annular groove adapted to the pressure plate, and the annular groove is provided with a lower anvil sliding plate that cooperates with the guide structure of the pressure plate.

[0012] A further improvement of the present invention is that the horizontal drive assembly includes a horizontal drive and a drive mounting base disposed on the base plate; wherein the horizontal drive is disposed on the drive mounting base, and the drive end of the horizontal drive is connected to the lower anvil body through the lower anvil connecting block.

[0013] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows: The upper anvil assembly, lower anvil assembly, and horizontal drive assembly of this utility model adopt a modular design. The components are assembled by detachable connection methods such as bolts and locks, which facilitates disassembly, transportation, and maintenance. At the same time, it can realize the pressure-shear coupling forging function without structural modification of ordinary presses. It combines special technology with general equipment, lowers the application threshold of pressure-shear coupling forging technology, and meets the needs of laboratory research and small and medium batch production.

[0014] This utility model uses an anti-eccentric load structure composed of a U-shaped guide column, stiffening plate and tie rod to limit the horizontal displacement of the upper anvil assembly, balance the horizontal eccentric load generated during the pressing and shearing process, avoid the press slide from bearing additional eccentric load, extend the service life of the press, and ensure the safe operation of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a pressure-shear coupling forging experimental device according to the present invention; Figure 2 This is a schematic diagram of the anti-eccentric load structure of a pressure-shear coupling forging experimental device according to this utility model; Figure 3 This is a schematic diagram of the anvil assembly of a pressure-shear coupling forging experimental device according to the present invention; Figure 4 This is a schematic diagram of the lower anvil assembly of a pressure-shear coupling forging experimental device according to the present invention; Figure 5 This is a schematic diagram of the structure of the pressure-shear coupling forging experimental device of this utility model during use.

[0016] In the attached diagram: 1. Base plate; 11. Pressure bearing platform; 2. Lower anvil assembly; 21. Lower anvil body; 22. Lower anvil pad; 23. Circular groove; 24. Lower anvil slide plate; 25. Locking strip; 3. Upper anvil assembly; 31. Upper anvil body; 32. Connecting plate; 33. Upper anvil pad; 34. Upper anvil slide; 35. Horizontal plate; 4. Horizontal drive assembly; 41. Horizontal actuator; 42. Actuator mounting base; 43. Lower anvil connecting block; 44. Drive rod; 45. Threaded connector; 5. Anti-eccentric load structure; 51. U-shaped guide column; 52. Stiffening plate; 53. Tie rod; 6. Guide slide plate. Detailed Implementation

[0017] 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 specific embodiments and accompanying drawings. In the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concept of this utility model.

[0018] Example 1 like Figure 1-5 As shown, this embodiment provides a pressure-shear coupling forging experimental device, including a base plate 1, an upper anvil assembly 3, a lower anvil assembly 2 and a horizontal drive assembly 4. Each component adopts a modular design and is detachably assembled by bolt connection. The whole device is installed on a conventional forging press.

[0019] An anti-eccentric load structure 5 is fixed on the base plate 1. This anti-eccentric load structure 5 includes two U-shaped guide columns 51, reinforcing ribs 52, and a pre-tensioning rod 53. The two U-shaped guide columns 51 are symmetrically welded to the upper surface of the base plate 1, with their openings facing each other. Each U-shaped guide column 51 has reinforcing ribs 52 welded to both sides, and these reinforcing ribs 52 are welded together with the base plate 1 and the corresponding U-shaped guide column 51. Threaded holes are formed at the upper ends of the opposing reinforcing ribs 52 of the two U-shaped guide columns 51, connected by a pre-tensioning rod 53, thereby achieving pre-tensioning fixation of the U-shaped guide columns 51 and limiting their deformation.

[0020] The pressure-bearing platform 11 is welded to the middle of the base plate 1 between two U-shaped guide columns 51. It adopts a T-shaped structure. Three guide slide plates 6 are fixed to the upper surface and two sides of the pressure-bearing platform 11 by bolts.

[0021] In this embodiment, the upper anvil assembly 3 and the anti-eccentric load structure 5 are fitted together by a guide structure to slide vertically, and the lower anvil assembly 2 and the pressure plate 11 are fitted together by a guide structure to slide horizontally. Specifically, the guide structure includes guide slide plates 6 provided on the U-shaped guide columns 51 and the pressure plate 11; wherein, each U-shaped guide column 51 has guide slide plates 6 on its three inner sidewalls, and the pressure plate 11 has guide slide plates 6 on its top and sidewalls.

[0022] The horizontal drive assembly 4 includes a horizontal actuator 41 and an actuator mounting base 42. The actuator mounting base 42 is welded to the base plate 1 on one side of the pressure platform 11. The top of the actuator mounting base 42 has a mounting hole that matches the horizontal actuator 41, and the horizontal actuator 41 is fixed to the actuator mounting base 42. In this embodiment, the horizontal actuator 41 can be a hydraulic rod, electric rod, or pneumatic rod commonly used in the prior art.

[0023] In this embodiment, the upper anvil assembly 3 includes an upper anvil body 31, a connecting plate 32, an upper anvil pad 33, and an upper anvil slide plate 34. Two vertically parallel connecting plates 32 are welded to the upper surface of the upper anvil body 31. A horizontal plate 35 is welded to the top of the two connecting plates 32. The horizontal plate 35 has multiple bolt holes and is fixedly connected to the press slide plate by upper anvil fixing bolts.

[0024] The upper anvil body 31 has an upper anvil pad 33 fixed in the middle of its lower surface by bolts. Three upper anvil slide plates 34 are fixed at each end of the upper anvil body 31 along its length by screws. These slide plates correspond one-to-one with the guide slide plates 6 on the inner side of the U-shaped guide column 51. The upper anvil slide plates 34 and the guide slide plates 6 on the inner side of the U-shaped guide column 51 work together to ensure the stability of the upper anvil assembly 3's up-and-down movement.

[0025] In this embodiment, the lower anvil assembly 2 includes a lower anvil body 21, a lower anvil pad 22, locking strips 25, a connecting block, and a lower anvil sliding plate 24. The lower anvil pad 22 is bolted to the upper surface of the lower anvil body 21, corresponding vertically to the upper anvil pad 33. A rectangular annular groove 23 with an opening facing downwards is formed at the lower part of the lower anvil body 21. Three lower anvil sliding plates 24 are fixed to the upper surface and two sides of the annular groove 23 with screws, which cooperate with the guide sliding plate 6 of the pressure platform 11. Two locking strips 25 are bolted to the bottom of both sides of the annular groove 23. The lower surface of the locking strips 25 is in contact with the bottom surface of the protruding edges on both sides of the pressure platform 11, ensuring that the lower anvil assembly 2 is in close contact with the pressure platform 11 and preventing movement during operation.

[0026] Meanwhile, a lower anvil connecting block 43 is welded to one side of the lower anvil body 21 along the direction of movement. The lower anvil connecting block 43 is connected to the drive rod 44 of the horizontal driver 41 through a threaded joint 45. The connection part is equipped with an anti-loosening nut to prevent loosening caused by vibration.

[0027] Example 2 The difference between this embodiment and Embodiment 1 is that the horizontal drive assembly 4 adopts a dual-side drive method. Specifically, the base plate 1 has drive mounting seats 42 welded to both sides of the pressure platform 11. Each drive mounting seat 42 fixes one horizontal drive 41, and the two horizontal drives 41 are arranged symmetrically with the drive rods 44 having collinear axes. Connecting blocks are provided on both sides of the lower anvil body 21 along the direction of movement, which are respectively connected to the drive rods 44 of the two horizontal drives 41. Other structures are the same as in Embodiment 1.

[0028] In the above embodiments, a pressure-shear coupling forging experimental device is provided. The upper anvil assembly, lower anvil assembly, and horizontal drive assembly of this invention adopt a modular design. The components are assembled by detachable connections such as bolts and locks, which facilitates disassembly, transportation, and maintenance. At the same time, it can realize the pressure-shear coupling forging function without structural modification of ordinary presses. It combines specialized technology with general equipment, lowers the application threshold of pressure-shear coupling forging technology, and meets the needs of laboratory research and small-batch production. The anti-eccentric load structure composed of U-shaped guide columns, stiffening plates, and tie rods can limit the horizontal displacement of the upper anvil assembly, balance the horizontal eccentric load generated during the pressure-shear process, avoid the press slide from bearing additional eccentric load, extend the service life of the press, and ensure the safe operation of the equipment.

[0029] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A pressure-shear coupled forging experimental device, characterized in that: The assembly includes a base plate (1), a lower anvil assembly (2) located above the base plate (1), an upper anvil assembly (3) located above the lower anvil assembly (2) and cooperating with the lower anvil assembly (2) while moving synchronously with the press slide, and a horizontal drive assembly (4). The base plate (1) is provided with an anti-eccentric load structure (5) for limiting the offset of the upper anvil assembly (3) and a pressure plate (11) for supporting the lower anvil assembly (2). The upper anvil assembly (3) and the anti-eccentric load structure (5) form a sliding fit that can slide up and down through a guide structure. The lower anvil assembly (2) and the pressure plate (11) form a sliding fit that can slide horizontally through a guide structure. The horizontal drive assembly (4) drives the lower anvil assembly (2) to reciprocate horizontally along the pressure plate (11).

2. The pressure-shear coupling forging experimental device according to claim 1, characterized in that: The anti-eccentric load structure (5) includes two U-shaped guide columns (51) symmetrically arranged on the base plate (1). Each U-shaped guide column (51) has a stiffening plate (52) on its outer side, and a tie rod (53) is provided between the stiffening plates (52) of each U-shaped guide column (51).

3. The pressure-shear coupled forging experimental device according to claim 2, characterized in that: The pressure-bearing platform (11) is located between two U-shaped guide columns (51) and connected to the base plate (1). The top and both sides of the pressure-bearing platform (11) are equipped with guide structures, and the length of the pressure-bearing platform (11) is not less than the maximum translation distance of the lower anvil assembly (2).

4. The pressure-shear coupled forging experimental device according to claim 3, characterized in that: The upper anvil assembly (3) includes an upper anvil body (31), a connecting plate (32) disposed on the top of the upper anvil body (31), an upper anvil pad (33) disposed on the bottom of the upper anvil body (31), and an upper anvil slide plate (34) adapted to the guide structure on the anti-eccentric load structure (5); wherein, the top of the connecting plate (32) is connected to the press slide.

5. The pressure-shear coupling forging experimental device according to claim 4, characterized in that: The guide structure includes guide slides (6) set on the U-shaped guide column (51) and the pressure plate (11); wherein, the three inner side walls of each U-shaped guide column (51) are provided with guide slides (6) that cooperate with the upper anvil slide (34), and the top and side walls of the pressure plate (11) are provided with guide slides (6) that cooperate with the lower anvil assembly (2).

6. The pressure-shear coupled forging experimental apparatus according to claim 1, characterized in that: The lower anvil assembly (2) includes a lower anvil body (21) and a lower anvil pad (22) disposed on the top of the lower anvil body (21); wherein, the bottom of the lower anvil body (21) is provided with an annular groove (23) adapted to the pressure plate (11), and the annular groove (23) is provided with a lower anvil sliding plate (24) that cooperates with the guide structure of the pressure plate (11).

7. The pressure-shear coupled forging experimental apparatus according to claim 6, characterized in that: The horizontal drive assembly (4) includes a horizontal drive (41) and a drive mounting base (42) disposed on the base plate (1); wherein the horizontal drive (41) is disposed on the drive mounting base (42), and the drive end of the horizontal drive (41) is connected to the lower anvil body (21) through the lower anvil connecting block (43).

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