A forging device for producing a titanium alloy rod

Abstract

The application provides a forging device for titanium alloy rod production, which comprises a primary forging mechanism, a secondary forging mechanism and a mechanical clamp for clamping a blank; the primary forging mechanism comprises a forging table, a first hydraulic cylinder and upper and lower molds; the first hydraulic cylinder is installed on the upper end of the forging table through a support; the front end of the movable rod of the first hydraulic cylinder is provided with a pressing plate; the upper and lower molds are arranged on the sides opposite to the pressing plate and the forging table respectively; vertical guide columns are arranged around the pressing plate; the lower ends of the vertical guide columns are fixed on the forging table; springs are installed on the vertical guide columns; the sides opposite to the upper and lower molds jointly form a groove with a circular cross section; the secondary forging mechanism comprises a rack, a second hydraulic cylinder and a shaping mold; the forging device for titanium alloy rod production effectively solves the problems of complicated process and inconvenient workpiece transfer in the traditional titanium alloy rod forging process by arranging the primary forging mechanism and the secondary forging mechanism and cooperating with the mechanical clamp for clamping the blank.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of titanium alloy bar forging, and particularly relates to a forging device for titanium alloy bar production. BACKGROUND

[0002] In the field of metal processing, forging is a common process method, which applies pressure to metal blanks by forging machinery to make them plastically deform, so as to obtain forgings with specific mechanical properties, shapes and sizes. Titanium alloy has a wide range of application requirements in many fields due to its special performance, and the forging process of titanium alloy bar, as an important form of titanium alloy product, is of great concern.

[0003] The titanium alloy bar forging process in the current market has certain limitations. Generally speaking, first, the titanium alloy ingot is processed by free forging, which requires repeatedly hammering the titanium alloy ingot until a rough cylindrical blank is formed. Then, the rough cylindrical blank needs to be transferred to the next process to further forge it into the final cylindrical shape by forming forging. This traditional forging process needs to go through two processes, and between the two processes, the workpiece must be transferred, which not only increases the complexity of the operation, but also may cause quality problems such as workpiece chipping and scratching during the transfer process, and also reduces the production efficiency, making the entire production process cumbersome and lengthy. Therefore, there is an urgent need for a forging device that can simplify the titanium alloy bar forging process to optimize the production process, improve production efficiency and product quality. SUMMARY

[0004] In order to overcome the shortcomings in the above background art, the present application provides a forging device for titanium alloy bar production.

[0005] The technical scheme of the present application is as follows: a forging device for titanium alloy bar production, comprising a first forging mechanism, a second forging mechanism and a mechanical clamp for clamping the billet; wherein the first forging mechanism comprises a forging table, a first hydraulic cylinder and upper and lower dies, wherein the first hydraulic cylinder is mounted on the upper end of the forging table through a support, the movable rod of the first hydraulic cylinder is provided with a pressing plate at the front end, the upper and lower dies are respectively arranged on the side opposite to the forging table of the pressing plate, vertical guide columns are arranged around the pressing plate, the lower ends of the vertical guide columns are fixedly arranged on the forging table, springs are arranged on the vertical guide columns, and the side opposite to the upper and lower dies forms a groove with a circular cross section; the second forging mechanism comprises a rack, a second hydraulic cylinder and a shaping die, a plurality of second hydraulic cylinders are arranged circumferentially on the rack, a shaping die is arranged at the front end of the movable rod of each second hydraulic cylinder, and the front side of each shaping die has an arc-shaped groove.

[0006] As a preferred technical scheme of the present application, the upper and lower dies are arranged in pairs, and at least two pairs of upper and lower dies are arranged along the feeding direction of the billet.

[0007] As a preferred technical scheme of the present application, the mechanical gripper comprises a moving slide and a mechanical arm, the moving slide is a reciprocating screw slide, and the front end of the mechanical arm is provided with a gripper which is rotatable.

[0008] As a preferred technical scheme of the present application, a rhombic hole is horizontally arranged in the middle of the frame, and the axis of the rhombic hole coincides with the axis of the groove after the upper and lower molds are closed.

[0009] As a preferred technical scheme of the present application, four second hydraulic cylinders are arranged around the rhombic hole in a circumferential direction, and two opposite shaping molds are arranged on the four second hydraulic cylinders, and the arc-shaped grooves on the shaping molds jointly form a circular groove.

[0010] As a preferred technical scheme of the present application, a sensor is arranged on the frame, and the sensor is used to detect whether the blank extends out of the rhombic hole.

[0011] As a preferred technical scheme of the present application, an accommodating groove is arranged at the upper end of the forging table, and a lap joint mechanism is arranged in the accommodating groove, the lap joint mechanism comprises a wheel carrier and a lap joint wheel in the shape of dumbbell which is horizontally arranged on the wheel carrier, a sliding groove is arranged at the upper end of the wheel carrier, a vertical rod is arranged in the sliding groove, the upper end of the vertical rod is arranged on a pressing plate, and a tension spring is arranged between the wheel carrier and the pressing plate.

[0012] As a preferred technical scheme of the present application, the accommodating groove is arranged between two adjacent pairs of upper and lower molds.

[0013] As a preferred technical scheme of the present application, an adjusting hole is arranged on the pressing plate to allow the vertical rod to pass through, a nut is connected to the upper end of the vertical rod, the upper end of the vertical rod is provided with external threads, and the nut and the vertical rod are threadedly connected.

[0014] As a preferred technical scheme of the present application, a slag outlet is arranged at the bottom of one side of the forging table, and the slag outlet is in communication with the accommodating groove.

[0015] Beneficial effects: 1. The titanium alloy bar production forging device is provided with a first forging mechanism and a second forging mechanism, and cooperates with the mechanical clamping jaw for clamping the blank, effectively solving the problems of complicated process and inconvenient workpiece transfer in the traditional titanium alloy bar forging process. The recess with a circular cross section formed on the opposite side of the upper and lower molds in the first forging mechanism, and the setting of the vertical guide column and the spring, ensure the stable clamping and preliminary plastic deformation of the titanium alloy ingot in the free forging stage, laying a good foundation for subsequent processing. The plurality of second hydraulic cylinders arranged circumferentially on the rack of the second forging mechanism and the sizing die with an arc-shaped recess at the front end can accurately size the rough cylindrical blank, so that it finally reaches the required cylindrical shape and size accuracy. At the same time, the use of the mechanical clamping jaw avoids frequent manual transfer of the blank, reduces the quality problems such as bumps and scratches that may occur during the transfer process of the workpiece, improves the production efficiency and automation degree, and thus improves the overall production quality and economic benefits, and has good market application prospect and popularization value.

[0016] 2. The present application sets up a plurality of pairs of upper and lower molds, which can make the blank receive more uniform forging pressure during forging, helping to improve the forging quality, and the setting of multiple pairs of molds can increase the efficiency of forging.

[0017] 3. The mechanical clamping jaw of the present application has high flexibility and accuracy, can accurately clamp and position the blank, improve production efficiency and processing quality, and reduce errors and safety hazards caused by manual operation.

[0018] 4. The present application can make the sizing die more uniformly apply pressure when sizing the blank, ensure that the blank can be fully forged in all directions, and improve the sizing effect and product quality.

[0019] 5. The setting of the sensor can realize automatic monitoring of the forging process, timely discovery and handling of abnormal conditions, improve the safety and reliability of production, and make the two mechanical clamping jaws connectable.

[0020] 6. The present application can effectively prevent the blank from shifting during forging by setting the lapping mechanism, ensure the stability and forging precision of the blank. In addition, the accommodating groove is arranged between the adjacent two pairs of upper and lower molds, which can better support and position the blank, and the height of the vertical rod is adjusted by the nut, so as to adapt to blanks of different sizes, improve the versatility and flexibility of the device, and in addition, the slag outlet facilitates timely discharge of waste and impurities generated during forging, keeping the working environment clean. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of the present application.

[0022] Figure 2 Fig. 1 is a structural schematic diagram of the primary forging mechanism of the present application.

[0023] Figure 3 Fig. 2 is a structural schematic diagram of the secondary forging mechanism of the present application.

[0024] Figure 4 Fig. 3 is a partial structural schematic diagram of the present application.

[0025] In the figure, 10 is a mechanical gripper, 11 is a moving slide, 12 is a mechanical arm, 13 is a gripper, 20 is a forging table, 21 is a first hydraulic cylinder, 22 is an upper die, 23 is a lower die, 24 is a pressing plate, 241 is an adjusting hole, 25 is a vertical guide column, 26 is a spring, 27 is a groove, 28 is a containing groove, 3 is a frame, 31 is a second hydraulic cylinder, 32 is a shaping die, 33 is a rhombic hole, 34 is an arc-shaped groove, 41 is a sensor, 50 is a lapping mechanism, 51 is a wheel frame, 52 is a lapping wheel, 53 is a sliding slot, 54 is a vertical rod, 55 is a nut, 56 is a tension spring, and 6 is a tapping hole. DETAILED DESCRIPTION

[0026] The present application is described in detail below in conjunction with the accompanying drawings and specific embodiments, but is not limited to the present application. In the present application, the orientation such as "upper" and "lower" is generally directed to the direction shown in the drawings or to the vertical, perpendicular or gravitational direction, unless otherwise stated. Similarly, for the convenience of understanding and description, "left" and "right" are generally directed to the left and right shown in the drawings, and "inner" and "outer" are directed to the inner and outer relative to the contour of each component, but the above orientation words are not used to limit the present application.

[0027] As shown in the accompanying drawings, the forging device for titanium alloy rod production includes a primary forging mechanism, a secondary forging mechanism, and a mechanical gripper 10 for clamping the billet. The structural layout of the device enables the entire forging process to be basically completed on one device, reduces the transfer time of the traditional multi-process, and improves the production efficiency. Figure 1 As shown in the accompanying drawings, the forging device for titanium alloy rod production includes a primary forging mechanism, a secondary forging mechanism, and a mechanical gripper 10 for clamping the billet. The structural layout of the device enables the entire forging process to be basically completed on one device, reduces the transfer time of the traditional multi-process, and improves the production efficiency.

[0028] Figure 2 ​As shown, the primary forging mechanism includes a forging table 20, a first hydraulic cylinder 21 and upper and lower dies 22, 23; the forging table 20 is the basic support structure of the entire primary forging mechanism, its upper end surface is flat, used for mounting other components, and at the same time bears various forces generated during the forging process; the first hydraulic cylinder 21 is mounted on the upper end of the forging table 20 through a support, and a pressure plate 24 is arranged at the front end of the movable rod of the first hydraulic cylinder 21, the pressure plate 24 is a rectangular plate, used for mounting the upper die 22 to ensure that the forging pressure can be uniformly transmitted to the billet. The upper and lower dies 22, 23 are arranged on the opposite side of the pressure plate 24 and the forging table 20, respectively, and their specific positions are that the upper die 22 is mounted on the lower surface of the pressure plate 24, and the lower die 23 is mounted on the upper surface of the forging table 20. In a preferred embodiment, the upper and lower dies 22, 23 are arranged in pairs, and at least two pairs are arranged along the feeding direction of the billet. Such an arrangement can enable the billet to be continuously forged for multiple times when passing through the primary forging, each time changing the shape and size of the billet to a certain extent, gradually approaching the final required cylindrical shape, and at the same time helping to improve the forging quality, making the internal structure of the billet more dense and improving its mechanical properties. For example, when the billet passes through the two pairs of upper and lower dies 22, 23 from right to left in turn, the first pair of upper and lower dies 22, 23 can perform preliminary rough machining to preliminarily forge the cast ingot-shaped billet into a shape close to a cylindrical shape, and then the second pair of upper and lower dies can further accurately adjust the shape and size of the billet to make it closer to the final forging requirement, preparing for the subsequent secondary forging.

[0029] A vertical guide column 25 is arranged around the pressure plate 24, the lower end of the guide column 25 is fixedly arranged on the forging table 20, and a spring 26 is mounted on the vertical guide column 25; the vertical guide column 25 functions to guide the up-and-down movement of the pressure plate 24, ensuring that the pressure plate 24 can stably move vertically during the forging process, avoiding uneven forging pressure due to the inclination or deviation of the pressure plate 24, and affecting the forging quality; the spring 26 functions to buffer and reset; during the forging process, when the movable rod of the first hydraulic cylinder 21 pushes the pressure plate 24 downward, the pressure plate 24 will compress the spring 26; and after the forging is completed, the movable rod of the first hydraulic cylinder 21 is retracted upward, and the elastic action of the spring 26 will assist the pressure plate 24 to reset more quickly, improving the operating efficiency of the equipment. The opposite sides of the upper and lower dies 22, 23 jointly form a groove 27 with a circular cross section, which enables the billet to be accurately placed in the groove 27 during forging, to receive uniform forging pressure, thereby realizing plastic deformation and forming the required rough cylindrical shape.

[0030] The secondary forging mechanism is shown in FIG. 2, which includes a second hydraulic cylinder 28 and a lower die 29. The second hydraulic cylinder 28 is mounted on the upper end of the forging table 20 through a support, and a pressure plate 30 is arranged at the front end of the movable rod of the second hydraulic cylinder 28, the pressure plate 30 is a rectangular plate, used for mounting the lower die 29 to ensure that the forging pressure can be uniformly transmitted to the billet. The lower die 29 is arranged on the opposite side of the pressure plate 30 and the forging table 20, and its specific position is that the lower die 29 is mounted on the upper surface of the forging table 20. In a preferred embodiment, the lower die 29 is arranged in pairs, and at least two pairs are arranged along the feeding direction of the billet. Such an arrangement can enable the billet to be continuously forged for multiple times when passing through the secondary forging, each time changing the shape and size of the billet to a certain extent, gradually approaching the final required cylindrical shape, and at the same time helping to improve the forging quality, making the internal structure of the billet more dense and improving its mechanical properties. Figure 3As shown, including rack 3, second hydraulic cylinder 31 and sizing die 32, the rack 3 is horizontally provided with a diamond hole 33, the axis of which coincides with the axis of the groove 27 after the upper and lower dies 22, 23 are closed. The diamond hole 33 provides a stable positioning and guiding channel for the billet during the secondary forging process, ensuring that the billet can be forged along the predetermined trajectory under the action of the sizing die 32, avoiding problems such as deviation or misplacement. The diamond hole 33 is circumferentially provided with four second hydraulic cylinders 31, which are evenly distributed. The movable rod of each second hydraulic cylinder 31 is provided with a sizing die 32 at the front end, and the front side of each sizing die 32 has an arc-shaped groove 34. The two sizing dies 32 installed on the four second hydraulic cylinders 31 are opposite to each other, and the arc-shaped grooves 34 on each sizing die 32 form a circular groove together. During the secondary forging process, the four second hydraulic cylinders 31 act simultaneously to push the respective sizing dies 32 towards the center, so that the arc-shaped grooves 34 on the sizing dies 32 cooperate with each other to further forge the billet into the required precise cylindrical shape, ensuring that the size accuracy and surface quality meet the production requirements.

[0031] In order to realize the automatic transfer of the billet between the primary forging mechanism and the secondary forging mechanism, the device further comprises a mechanical gripper 10 for clamping the billet, as shown in FIG. 4. Figure 1 As shown, the mechanical gripper 10 includes a moving slide 11 and a mechanical arm 12. The moving slide 11 is a reciprocating screw slide, which can move smoothly along the set track to realize the quick conversion of the gripper between different positions. The mechanical arm 12 is installed on the slide block of the moving slide 11 and can change position with the movement of the moving slide 11. The front end of the mechanical arm 12 is provided with a gripper 13, and a motor is installed between the mechanical arm 12 and the gripper 13. The gripper 13 can be driven to rotate by the motor, which enables the gripper 13 to change the clamping direction as needed, facilitating the clamping and placing operation of the billet in different positions and postures. In actual work process, after the billet is finished by the primary forging, the moving slide 11 of the mechanical gripper 10 moves to the appropriate position of the primary forging mechanism, the gripper 13 clamps the billet after the primary forging, and then the moving slide 11 transfers the billet to the secondary forging mechanism and accurately places it in the diamond hole 33, preparing for the secondary forging. The whole process realizes automatic operation, reduces manual intervention, improves work efficiency and operation safety, and also avoids human damage to the billet during the transfer process.

[0032] In order to ensure the smooth progress of the forging process and the stability of the product quality, a sensor 41 is also provided on the rack, as shown in FIG. 5. Figure 1 and Figure 3As shown, the position of the sensor 41 corresponds to the diamond-shaped hole 33 for detecting whether there is a blank extending out of the diamond-shaped hole 33. When the blank extends out of the diamond-shaped hole 33, the sensor 41 sends a signal to the controller, and the two mechanical jaws 10 are controlled by the controller to switch and connect, so that the blank is transferred from one mechanical jaw 10 to the other mechanical jaw 10, thereby realizing continuous forging processing of the blank.

[0033] As shown in FIGS. 1 and 2, the upper end of the forging table 20 is provided with a plurality of diamond-shaped holes 33, and a sensor 41 is arranged on the upper end of the forging table 20 and corresponds to each diamond-shaped hole 33. As shown, the position of the sensor 41 corresponds to the diamond-shaped hole 33 for detecting whether there is a blank extending out of the diamond-shaped hole 33. When the blank extends out of the diamond-shaped hole 33, the sensor 41 sends a signal to the controller, and the two mechanical jaws 10 are controlled by the controller to switch and connect, so that the blank is transferred from one mechanical jaw 10 to the other mechanical jaw 10, thereby realizing continuous forging processing of the blank. Figure 1 and Figure 4 As shown in FIGS. 1 and 2, the upper end of the forging table 20 is provided with a plurality of diamond-shaped holes 33, and a sensor 41 is arranged on the upper end of the forging table 20 and corresponds to each diamond-shaped hole 33. As shown, the position of the sensor 41 corresponds to the diamond-shaped hole 33 for detecting whether there is a blank extending out of the diamond-shaped hole 33. When the blank extends out of the diamond-shaped hole 33, the sensor 41 sends a signal to the controller, and the two mechanical jaws 10 are controlled by the controller to switch and connect, so that the blank is transferred from one mechanical jaw 10 to the other mechanical jaw 10, thereby realizing continuous forging processing of the blank.

[0034] As shown in FIGS. 1 and 2, the upper end of the forging table 20 is provided with a plurality of diamond-shaped holes 33, and a sensor 41 is arranged on the upper end of the forging table 20 and corresponds to each diamond-shaped hole 33. As shown, the position of the sensor 41 corresponds to the diamond-shaped hole 33 for detecting whether there is a blank extending out of the diamond-shaped hole 33. When the blank extends out of the diamond-shaped hole 33, the sensor 41 sends a signal to the controller, and the two mechanical jaws 10 are controlled by the controller to switch and connect, so that the blank is transferred from one mechanical jaw 10 to the other mechanical jaw 10, thereby realizing continuous forging processing of the blank. Figure 1 As shown in FIGS. 1 and 2, the upper end of the forging table 20 is provided with a plurality of diamond-shaped holes 33, and a sensor 41 is arranged on the upper end of the forging table 20 and corresponds to each diamond-shaped hole 33. As shown, the position of the sensor 41 corresponds to the diamond-shaped hole 33 for detecting whether there is a blank extending out of the diamond-shaped hole 33. When the blank extends out of the diamond-shaped hole 33, the sensor 41 sends a signal to the controller, and the two mechanical jaws 10 are controlled by the controller to switch and connect, so that the blank is transferred from one mechanical jaw 10 to the other mechanical jaw 10, thereby realizing continuous forging processing of the blank.

[0035] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A forging apparatus for producing titanium alloy bars, characterized in that, It includes a primary forging mechanism, a secondary forging mechanism, and mechanical grippers (10) for gripping the billet; The primary forging mechanism includes a forging table (20), a first hydraulic cylinder (21), and upper and lower dies. The first hydraulic cylinder (21) is mounted on the upper end of the forging table (20) via a bracket. A pressure plate (24) is provided at the front end of the movable rod of the first hydraulic cylinder (21). The upper and lower dies are respectively located on the side opposite to the pressure plate (24) and the forging table (20). Vertical guide posts (25) are provided around the pressure plate (24). The lower end of the vertical guide posts (25) is fixed on the forging table (20). A spring (26) is installed on the vertical guide posts (25). The opposite sides of the upper and lower dies together form a groove (27) with a circular cross-section. The secondary forging mechanism includes a frame (3), a second hydraulic cylinder (31) and a shaping mold (32). The frame (3) is circumferentially provided with multiple second hydraulic cylinders (31). Each second hydraulic cylinder (31) has a shaping mold (32) at the front end of its movable rod. Each shaping mold (32) has an arc-shaped groove (34) on its front side. The forging table (20) has a receiving groove (28) at its upper end. The receiving groove (28) contains an overlapping mechanism (50). The overlapping mechanism (50) includes a wheel frame (51) and a dumbbell-shaped overlapping wheel (52) horizontally mounted on the wheel frame (51). The wheel frame (51) has a sliding groove (53) at its upper end. A vertical rod (54) is provided in the sliding groove (53). The upper end of the vertical rod (54) is set on the pressure plate (24). A tension spring (56) is provided between the wheel frame (51) and the pressure plate (24). The receiving groove (28) is disposed between two adjacent pairs of upper and lower molds; The pressure plate (24) has an adjustment hole (241) that allows the vertical rod (54) to pass through. The upper end of the vertical rod (54) is connected to a nut (55), and the upper end of the vertical rod (54) is provided with an external thread, and the two are threaded together.

2. The forging apparatus for producing titanium alloy bars according to claim 1, characterized in that, The upper and lower molds are arranged in pairs, and at least two pairs of upper and lower molds are arranged along the feeding direction of the blank.

3. The forging apparatus for producing titanium alloy bars according to claim 1, characterized in that, The mechanical gripper (10) includes a movable slide (11) and a mechanical arm (12). The movable slide (11) is a reciprocating lead screw slide. The front end of the mechanical arm (12) is equipped with a gripper (13), which is rotatable.

4. The forging apparatus for producing titanium alloy bars according to any one of claims 1-3, characterized in that, The frame (3) has a horizontally opened diamond-shaped hole (33) in the middle, and the axis of the diamond-shaped hole (33) coincides with the axis of the groove (27) after the upper and lower molds are closed.

5. The forging apparatus for producing titanium alloy bars according to claim 4, characterized in that, The diamond-shaped hole (33) is surrounded by four second hydraulic cylinders (31). The shaping molds (32) installed on the four second hydraulic cylinders (31) are opposite each other, and the arc-shaped grooves (34) on each shaping mold (32) together form a circular groove.

6. The forging apparatus for producing titanium alloy bars according to claim 5, characterized in that, The frame (3) is equipped with a sensor (41), which is used to detect whether there is a blank protruding from the diamond-shaped hole (33).

7. The forging apparatus for producing titanium alloy bars according to claim 6, characterized in that, A slag outlet (6) is provided at the bottom of one side of the forging table (20), and the slag outlet (6) is connected to the receiving tank (28).

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