Forging device for titanium alloy bar production

Abstract

The invention provides a forging device for titanium alloy bar production. The forging device comprises a first-stage forging mechanism, a second-stage forging mechanism and a mechanical clamping jaw used for clamping a blank. Wherein the first-stage forging mechanism comprises a forging table, a first hydraulic cylinder, an upper die and a lower die, the first hydraulic cylinder is installed at the upper end of the forging table through a support, a pressing plate is arranged at the front end of a movable rod of the first hydraulic cylinder, the upper die and the lower die are arranged on the side, opposite to the forging table, of the pressing plate, and vertical guide columns are arranged on the periphery of the pressing plate; the lower ends of the vertical guide columns are fixedly arranged on the forging table, springs are installed on the vertical guide columns, and the opposite sides of the upper die and the lower die jointly form a groove with a circular section. According to the forging device for titanium alloy bar production, the first-stage forging mechanism and the second-stage forging mechanism are arranged and matched with a mechanical clamping jaw used for clamping a blank, and the problems that in the traditional titanium alloy bar forging process, procedures are tedious, and workpieces are inconvenient to transfer are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of titanium alloy bar forging, and particularly to a forging device for producing titanium alloy bars. Background Art

[0002] In the field of metal processing, forging is a common process method. By applying pressure to metal billets through forging machinery, plastic deformation is generated to obtain forgings with specific mechanical properties, shapes, and dimensions. Due to its special properties, titanium alloy has extensive application requirements in many fields. As an important form of titanium alloy products, the forging process of titanium alloy bars has attracted much attention.

[0003] Currently, the forging process flow of titanium alloy bars in the market has certain limitations. Generally speaking, first, the titanium alloy ingot is processed by the open-die forging method. This process requires repeated hammering of the titanium alloy ingot until a rough cylindrical blank is formed. Subsequently, the rough cylindrical blank needs to be transferred to the next process, and further forged into the final required cylindrical shape through shaping forging. This traditional forging process requires 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 bumping and scratching during the transfer process. At the same time, it also reduces production efficiency and makes the entire production process cumbersome and lengthy. Therefore, there is an urgent need for a forging device that can simplify the forging process of titanium alloy bars to optimize the production process, improve production efficiency, and product quality. Summary of the Invention

[0004] In order to overcome the disadvantages existing in the above background art, the present invention provides a forging device for producing titanium alloy bars.

[0005] The technical solution of the present invention is: A forging device for producing titanium alloy bars, including a primary forging mechanism, a secondary forging mechanism, and a mechanical gripper for clamping the blank; wherein, the primary forging mechanism includes a forging table, a first hydraulic cylinder, and upper and lower dies. Among them, the first hydraulic cylinder is installed at the upper end of the forging table through a bracket, a pressure plate is provided at the front end of the movable rod of the first hydraulic cylinder, the upper and lower dies are respectively arranged on the opposite sides of the pressure plate and the forging table, vertical guide columns are provided around the pressure plate, the lower ends of the vertical guide columns are fixed on the forging table, and springs are installed on the vertical guide columns. The opposite sides of the upper and lower dies together form a circular groove in cross-section; the secondary forging mechanism includes a frame, a second hydraulic cylinder, and a sizing die. A plurality of second hydraulic cylinders are circumferentially arranged on the frame, and a sizing die is respectively provided at the front end of the movable rod of each second hydraulic cylinder, and an arc-shaped groove is provided on the front side of each sizing die.

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

[0007] As a preferred technical solution of the present invention, the mechanical gripper includes a moving slide and a robotic arm. The moving slide is a reciprocating lead screw slide. A gripper is installed at the front end of the robotic arm, and the gripper is rotatable.

[0008] As a preferred technical solution of the present invention, a diamond-shaped hole is horizontally opened in the middle of the frame, and the axis of the diamond-shaped hole coincides with the axis of the groove after the upper and lower molds are closed.

[0009] As a preferred technical solution of the present invention, four second hydraulic cylinders are circumferentially arranged around the diamond-shaped hole. The shaping molds installed on the four second hydraulic cylinders are pairwise opposite, and the arc-shaped grooves on each shaping mold together form a circular groove.

[0010] As a preferred technical solution of the present invention, a sensor is provided on the frame, and the sensor is used to detect whether there is a blank protruding from the diamond-shaped hole.

[0011] As a preferred technical solution of the present invention, a receiving groove is opened at the upper end of the forging table. A lapping mechanism is accommodated in the receiving groove. The lapping mechanism includes a wheel frame and a dumbbell-shaped lapping wheel horizontally installed on the wheel frame. A chute is opened at the upper end of the wheel frame, and a vertical rod is provided in the chute. The upper end of the vertical rod is arranged on a pressure plate, and a tension spring is arranged between the wheel frame and the pressure plate.

[0012] As a preferred technical solution of the present invention, the receiving groove is arranged between adjacent pairs of upper and lower molds.

[0013] As a preferred technical solution of the present invention, an adjustment hole allowing the vertical rod to pass through is opened on the pressure plate. The upper end of the vertical rod is connected with a nut, and the upper end of the vertical rod is provided with an external thread, and the two are threadedly connected.

[0014] As a preferred technical solution of the present invention, a slag outlet is opened at the bottom of one side of the forging table, and the slag outlet is communicated with the receiving groove.

[0015] Beneficial effects: 1. The forging device for producing titanium alloy rods effectively solves the problems of cumbersome processes and inconvenient workpiece transfer during the forging process of traditional titanium alloy rods by setting a primary forging mechanism and a secondary forging mechanism and cooperating with mechanical grippers for clamping blanks. Among them, the circular groove formed on the opposite sides of the upper and lower dies in the primary forging mechanism, as well as the setting of vertical guide columns and springs, ensure the stable clamping and preliminary plastic deformation of titanium alloy ingots during the free forging stage, laying a good foundation for subsequent processing. The multiple second hydraulic cylinders circumferentially arranged on the frame of the secondary forging mechanism and the sizing die with an arc-shaped groove at its front end can precisely perform sizing forging on the thick cylindrical blank, enabling it to finally reach the required cylindrical shape and dimensional accuracy. At the same time, the use of mechanical grippers avoids the frequent manual transfer of blanks, reduces quality problems such as bumps and scratches that may occur during the transfer of workpieces, improves production efficiency and automation, and thus enhances the overall production quality and economic benefits, having good market application prospects and promotion value.

[0016] 2. The present invention sets multiple pairs of upper and lower dies. Such a layout can enable the blank to receive more uniform forging pressure during the forging process, contributing to improving the forging quality. At the same time, the setting of multiple pairs of dies can increase the forging efficiency.

[0017] 3. The mechanical gripper of the present invention has high flexibility and accuracy, can precisely clamp and position the blank, improve production efficiency and processing quality, and reduce errors and safety hazards caused by manual operations.

[0018] 4. By circumferentially arranging four second hydraulic cylinders around the diamond-shaped hole, the present invention can enable the sizing die to apply pressure more evenly when performing sizing forging on the blank, ensuring that the blank can be fully forged in all directions, improving the sizing effect and product quality.

[0019] 5. The setting of the sensor in the present invention can realize the automatic monitoring of the forging process, promptly detect and handle abnormal situations, improve the safety and reliability of production, and enable the two mechanical grippers to be connected.

[0020] 6. By setting a lapping mechanism, the present invention can effectively prevent the blank from shifting during the forging process, ensuring the stability and forging accuracy of the blank. In addition, the accommodating groove is arranged between adjacent pairs of upper and lower dies, which can better support and position the blank, and the height of the vertical rod is adjusted by a nut to adapt to blanks of different sizes, improving the versatility and flexibility of the device. In addition, the slag outlet facilitates the timely discharge of generated waste and impurities during the forging process, keeping the working environment clean. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 2 This is a schematic structural diagram of the primary forging mechanism of the present invention.

[0023] Figure 3 This is a schematic structural diagram of the secondary forging mechanism of the present invention.

[0024] Figure 4 This is a schematic diagram of the partial structure of the present invention.

[0025] In the figure, the markings are: 10 - mechanical gripper, 11 - moving slide, 12 - robotic arm, 13 - gripper, 20 - forging table, 21 - first hydraulic cylinder, 22 - upper die, 23 - lower die, 24 - pressing plate, 241 - adjusting hole, 25 - vertical guide post, 26 - spring, 27 - groove, 28 - receiving groove, 3 - frame, 31 - second hydraulic cylinder, 32 - sizing die, 33 - diamond hole, 34 - arc groove, 41 - sensor, 50 - lapping mechanism, 51 - wheel frame, 52 - lapping wheel, 53 - chute, 54 - vertical rod, 55 - nut, 56 - tension spring, 6 - slag outlet. Detailed implementation manners

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but it is not intended to limit the present invention. In the present invention, unless otherwise stated, the directions such as "upper" and "lower" are generally in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for ease of understanding and description, "left" and "right" are generally the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the contour of each component itself, but the above orientation terms are not used to limit the present invention.

[0027] As shown in the attached Figure 1 The forging device for titanium alloy rod production shown in the figure includes a primary forging mechanism, a secondary forging mechanism, and a mechanical gripper 10 for clamping the blank. The structural layout of this device enables the entire forging process to be basically completed on one device, reducing the transfer time of traditional multi - process operations and improving production efficiency.

[0028] As shown in the attached Figure 2As shown in the figure, 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 surface is flat, used for installing other components and bearing various forces generated during the forging process; the first hydraulic cylinder 21 is installed at the upper end of the forging table 20 through a bracket, and a pressing plate 24 is provided at the front end of the movable rod of the first hydraulic cylinder 21. The pressing plate 24 is a rectangular plate, used for installing the upper die 22 to ensure that the forging pressure can be evenly transmitted to the blank. The upper and lower dies 22, 23 are respectively arranged on the opposite sides of the pressing plate 24 and the forging table 20. Their specific positions are that the upper die 22 is installed on the lower surface of the pressing plate 24, and the lower die 23 is installed 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 blank. Such an arrangement can enable the blank to be continuously forged multiple times during primary forging. Each forging can change the shape and size of the blank to a certain extent, gradually approaching the final required cylindrical shape. At the same time, it also helps to improve the forging quality, make the internal structure of the blank more dense, and improve its mechanical properties. For example, when the blank passes through these two pairs of upper and lower dies 22, 23 from right to left in sequence, the first pair of upper and lower dies 22, 23 can perform preliminary rough machining to initially forge the ingot-shaped blank into a shape close to a cylindrical shape, and then the second pair of upper and lower dies can further precisely adjust its shape and size to make it closer to the final forging requirements, preparing for subsequent secondary forging.

[0029] Vertical guide columns 25 are provided around the pressing plate 24. The lower ends of the guide columns 25 are fixedly arranged on the forging table 20, and springs 26 are installed on the vertical guide columns 25; the function of the vertical guide columns 25 is to guide the up and down movement of the pressing plate 24, ensuring that the pressing plate 24 can move vertically and stably during the forging process, avoiding uneven forging pressure caused by the inclination or offset of the pressing plate 24 and affecting the forging quality; the springs 26 play a role of buffering and resetting; during the forging process, when the movable rod of the first hydraulic cylinder 21 pushes the pressing plate 24 downward, the pressing plate 24 will compress the springs 26; after the forging is completed, the movable rod of the first hydraulic cylinder 21 retracts upward, and the elastic action of the springs 26 will assist the pressing plate 24 to reset more quickly, improving the operating efficiency of the equipment. On the opposite sides of the upper and lower dies 22, 23, a circular groove 27 is jointly formed. The groove 27 enables the blank to be accurately placed therein during forging, receive uniform forging pressure, and thus achieve plastic deformation to form the required thick cylindrical shape.

[0030] The secondary forging mechanism is as shown in the appendix Figure 3As shown in the figure, it includes a frame 3, a second hydraulic cylinder 31, and a sizing die 32. A diamond-shaped hole 33 is horizontally opened on the frame 3, and its axis coincides with the axis of the groove 27 after the upper and lower dies 22, 23 are closed. The function of the diamond-shaped hole 33 is to provide a stable positioning and guiding channel for the blank during the secondary forging process, ensuring that the blank can be forged along a predetermined trajectory under the action of the sizing die 32, and avoiding problems such as offset or misalignment. Four second hydraulic cylinders 31 are circumferentially arranged around the diamond-shaped hole 33. These second hydraulic cylinders 31 are evenly distributed. A sizing die 32 is respectively arranged at the front end of the movable rod of each second hydraulic cylinder 31. The front side of each sizing die 32 has an arc-shaped groove 34. The sizing dies 32 installed on the four second hydraulic cylinders 31 are opposite to each other in pairs, and the arc-shaped grooves 34 on each sizing die 32 together form a circular groove. During the secondary forging process, the four second hydraulic cylinders 31 act simultaneously, pushing their 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 blank into the required precise cylindrical shape, ensuring that its dimensional accuracy and surface quality meet the production requirements.

[0031] To realize the automatic transfer of the blank between the primary forging mechanism and the secondary forging mechanism, the device further includes a mechanical gripper 10 for gripping the blank, as shown in the appendix Figure 1 As shown in the figure, the mechanical gripper 10 includes a moving slide 11 and a robotic arm 12. The moving slide 11 is a reciprocating lead screw slide, which can move smoothly along a set track to achieve rapid conversion of the gripper between different positions. The robotic arm 12 is installed on the slider of the moving slide 11 and can change its position as the moving slide 11 moves. A gripper 13 is installed at the front end of the robotic arm 12. A motor is installed between the robotic arm 12 and the gripper 13, and the gripper 13 can be driven by the motor to rotate, which enables the gripper 13 to change the gripping direction according to actual needs, facilitating the gripping and placing operations of blanks in different positions and postures. During the actual working process, when the blank is completed in the primary forging, the moving slide 11 of the mechanical gripper 10 moves to an appropriate position of the primary forging mechanism, the gripper 13 grips the blank after the primary forging, and then the moving slide 11 transfers the blank to the secondary forging mechanism and accurately places it in the diamond-shaped hole 33 to prepare for the secondary forging. The whole process realizes automatic operation, reduces manual intervention, improves work efficiency and operation safety, and also avoids possible human damage to the blank during the transfer process.

[0032] To ensure the smooth progress of the forging process and the stability of product quality, a sensor 41 is also provided on the frame, as shown in the appendix Figure 1 and Figure 3As shown, the position of the sensor 41 corresponds to the diamond-shaped hole 33, and is used to detect whether there is a blank protruding from the diamond-shaped hole 33. When the blank protrudes from the diamond-shaped hole 33, the sensor 41 sends a signal to the controller, and the controller controls the two mechanical jaws 10 to perform a conversion connection, transferring the blank from one mechanical jaw 10 to the other mechanical jaw 10, so as to realize the continuous forging process of the blank.

[0033] As Figure 1 and Figure 4 As shown, a receiving groove 28 is also provided at the upper end of the forging table 20. The receiving groove 28 is located between adjacent pairs of upper and lower molds. A lapping mechanism 50 is disposed in the receiving groove 28. The lapping mechanism 50 includes a wheel frame 51 and a dumbbell-shaped lapping wheel 52 horizontally installed on the wheel frame 51. The wheel frame 51 serves as a supporting structure for the lapping wheel 52 to ensure that the lapping wheel 52 is stably installed in the receiving groove 28. At the same time, a sliding groove 53 is provided at the upper end of the wheel frame 51, and a vertical rod 54 is provided in the sliding groove 53. The vertical rod 54 passes through an adjustment hole 241 provided on the pressing plate 24. The upper end of the vertical rod 54 is provided with an external thread, and the two are threadedly connected, so that the height position of the vertical rod 54 can be flexibly adjusted. A tension spring 56 is provided between the wheel frame 51 and the pressing plate 24. One end of the tension spring 56 is connected to the wheel frame 51, and the other end is connected to the pressing plate 24. When the pressing plate 24 moves up and down along the vertical guide post 25, the tension spring 56 will undergo elastic deformation with the movement of the pressing plate 24, thereby driving the wheel frame 51 to move correspondingly in the sliding groove 53, and then adjusting the position of the lapping wheel 52. The dumbbell-shaped design of the lapping wheel 52 enables it to provide a larger contact area when contacting the blank, better support the blank, prevent the blank from shifting during the forging process, and also helps the blank to smoothly transition between the primary forging mechanism and the secondary forging mechanism.

[0034] As shown in the appendix Figure 1 As shown, a slag outlet 6 is also provided at the bottom of one side of the forging table 20. The slag outlet 6 is communicated with the receiving groove 28. The upper end surface of the forging table 20 is slightly concave from the periphery to the middle, specifically concave from the periphery to the receiving groove 28. During the forging process, it is inevitable to generate some waste residues, debris and other impurities. If these impurities remain on the forging table 20 or in the receiving groove 28, they may interfere with the normal forging of the subsequent blank. Therefore, through the vibration generated by the device itself, the waste residues enter the receiving groove 28 from the upper end surface of the forging table 20. The setting of the slag outlet 6 facilitates the timely discharge of these waste residues and debris outside the device, keeps the forging table 20 and the receiving groove 28 clean, ensures the good operating state of the forging equipment, and is also conducive to the centralized recovery and treatment of the waste residues, improving the utilization rate of resources and reducing waste.

[0035] The above-described embodiments merely represent the preferred embodiments of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent for the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications, improvements, and substitutions can be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention shall be subject to the appended claims.

Claims

1. A forging device for producing titanium alloy rods, characterized in that, It includes a primary forging mechanism, a secondary forging mechanism, and a mechanical gripper (10) for gripping the blank. Among them, the primary forging mechanism includes a forging table (20), a first hydraulic cylinder (21), and upper and lower molds. The first hydraulic cylinder (21) is installed at the upper end of the forging table (20) through 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 molds are respectively arranged on the opposite sides of the pressure plate (24) and the forging table (20). Vertical guide columns (25) are provided around the pressure plate (24). The lower ends of the vertical guide columns (25) are fixedly arranged on the forging table (20). Springs (26) are installed on the vertical guide columns (25). A groove (27) with a circular cross-section is jointly formed on the opposite sides of the upper and lower molds. The secondary forging mechanism includes a frame (3), a second hydraulic cylinder (31), and a sizing die (32). A plurality of second hydraulic cylinders (31) are circumferentially arranged on the frame (3). A sizing die (32) is respectively provided at the front end of the movable rod of each second hydraulic cylinder (31). An arc-shaped groove (34) is provided on the front side of each sizing die (32).

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

3. The forging device for the production of titanium alloy rods according to claim 1, characterized in that, The mechanical gripper (10) includes a moving slide (11) and a robotic arm (12). The moving slide (11) is a reciprocating lead screw slide. A gripper (13) is installed at the front end of the robotic arm (12), and the gripper (13) can rotate.

4. The forging device for producing titanium alloy rods according to any one of claims 1-3, characterized in that, A diamond-shaped hole (33) is horizontally opened in the middle of the frame (3), 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 device for producing titanium alloy rods according to claim 4, characterized in that, Four second hydraulic cylinders (31) are circumferentially arranged around the diamond-shaped hole (33). The sizing dies (32) installed on the four second hydraulic cylinders (31) are pairwise opposite, and the arc-shaped grooves (34) on each sizing die (32) jointly form a circular groove.

6. The forging device for producing titanium alloy rods according to claim 5, characterized in that, A sensor (41) is provided on the frame (3), and the sensor (41) is used to detect whether there is a blank protruding from the diamond-shaped hole (33).

7. The forging device for producing titanium alloy rods according to claim 6, characterized in that, An accommodation groove (28) is opened at the upper end of the forging table (20). A lapping mechanism (50) is arranged in the accommodation groove (28). The lapping mechanism (50) includes a wheel frame (51) and a dumbbell-shaped lapping wheel (52) horizontally installed on the wheel frame (51). A chute (53) is opened at the upper end of the wheel frame (51). A vertical rod (54) is arranged in the chute (53). The upper end of the vertical rod (54) is arranged on the pressure plate (24). A tension spring (56) is arranged between the wheel frame (51) and the pressure plate (24).

8. The forging device for producing titanium alloy rods according to claim 7, characterized in that, The accommodation groove (28) is arranged between two adjacent pairs of upper and lower molds.

9. The forging device for producing titanium alloy rods according to claim 8, characterized in that, An adjustment hole (241) allowing the vertical rod (54) to pass through is opened on the pressure plate (24). A nut (55) is connected to the upper end of the vertical rod (54). The upper end of the vertical rod (54) is provided with an external thread, and the two are threadedly connected.

10. The forging device for producing titanium alloy rods according to claim 9, characterized in that, A slag outlet (6) is opened at the bottom of one side of the forging table (20), and the slag outlet (6) is communicated with the accommodation groove (28).

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