Correcting device for forging crankshaft blank

Abstract

The utility model discloses a correcting device for forging a crankshaft blank, which belongs to the technical field of crankshaft forging equipment and comprises a mounting seat and a crankshaft blank body, one end of the mounting seat is provided with a sliding groove, a first lead screw driven by a first motor is rotatably mounted in the sliding groove, and the outer side of the first lead screw is in threaded connection with a T-shaped plate. An electric cylinder is fixedly mounted at the upper end of the T-shaped plate, a first mounting plate is fixedly mounted at the output end of the electric cylinder, a guide groove is formed in one side of the first mounting plate, a threaded rod is rotatably mounted in the guide groove, and a sliding block is in threaded connection with the outer side of the threaded rod; and the square grooves are formed in one end of the first mounting plate and one end of the second mounting plate correspondingly, the movable correction plates are mounted in the square grooves through the driving assemblies, the crankshaft blank can be extruded and corrected, compared with a traditional correction mode, the correction efficiency is greatly improved, and the correction requirements of crankshaft blank bodies with different lengths can be met.

Description

Technical Field

[0001] This utility model relates to a correction device for forged crankshaft blanks, belonging to the technical field of forged crankshaft equipment. Background Technology

[0002] During the production of forged crankshaft blanks, due to the complexity of the forging process and the material properties, crankshaft blanks inevitably experience a certain degree of bending and deformation. These issues require correction using a forged crankshaft blank correction device. Traditionally, crankshaft blanks are corrected manually or using simple molds.

[0003] For example, announcement number CN210647870U discloses a correction device for crankshaft forging, relating to the field of crankshaft forging technology. This utility model includes a base, a first support block fixed to the bottom of a correction groove, second support blocks fixed to opposite side walls of the correction groove, a sliding hole on one side of the correction groove, a lead screw rotatably connected between opposite side walls of a drive groove, several nuts threaded onto the circumferential side of the lead screw, a connecting rod fixed to the circumferential side of the nuts, a side pressure block fixed to one end of the connecting rod, one side of the side pressure block slidably connected to the side of the first support block, and the upper surface of the side pressure block slidably connected to the bottom of the second support block. This utility model, through the design of the correction groove, drive groove, side pressure block, hanging plate, and upper die base, solves the problem of bending deformation after the edge trimming process of crankshaft forgings, resulting in good dimensional consistency of batch-forged crankshaft forgings, which is beneficial to the subsequent finishing process of crankshaft forgings and can improve the pass rate of crankshaft products.

[0004] In the calibration of forged crankshaft blanks, traditional calibration devices face numerous challenges due to limitations in technology and structure. They rely on simple mechanical structures for calibration operations, resulting in insufficient automation, cumbersome and time-consuming calibration processes, and persistently low production efficiency. Furthermore, the increased labor and time costs caused by low production efficiency collectively drive up overall production costs. Utility Model Content

[0005] The purpose of this invention is to provide a correction device for forged crankshaft blanks in order to solve the above-mentioned problems, thereby improving the correction efficiency of the crankshaft blank body.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a correction device for a forged crankshaft blank, comprising a mounting base and a crankshaft blank body. The mounting base has placement grooves at both ends, and the crankshaft blank body is installed in the placement grooves at both ends. One end of the mounting base has a sliding groove, in which a first lead screw driven by a first motor is rotatably mounted. A T-shaped plate is threadedly connected to the outer side of the first lead screw. An electric cylinder is fixedly mounted on the upper end of the T-shaped plate, and a first mounting plate is fixedly mounted on the output end of the electric cylinder. A guide groove is provided on one side of the first mounting plate, in which a threaded rod is rotatably mounted. A sliding block is threadedly connected to the outer side of the threaded rod, and a second mounting plate is fixedly mounted on one end of the sliding block. Both the first and second mounting plates have square grooves at one end, in which a movable correction plate is mounted via a drive assembly. An integrated control panel is fixedly mounted on one end of the mounting base. During use, the integrated control panel contains a controller for controlling various components. The drive assembly is used to move the correction plate in opposite directions. One end of the correction plate has an arc-shaped structure, and the first motor is a servo motor.

[0007] Preferably, in order to control the first motor, both the first motor and the electric cylinder are electrically connected to the integrated control panel.

[0008] Preferably, in order to enable the first lead screw to rotate, the first motor is fixedly mounted on one side of the mounting base, and the output end of the first motor is fixedly connected to the first lead screw.

[0009] Preferably, a handwheel is fixedly installed at one end of the threaded rod to facilitate rotation of the threaded rod.

[0010] Preferably, in order for the bidirectional lead screw to rotate, the drive assembly includes a bidirectional lead screw and a second motor. The bidirectional lead screw is rotatably installed in the square groove and is threadedly connected to one end of the correction plate. The second motor is fixedly installed at one end of the first mounting plate and the second mounting plate, and the output end of the second motor is threadedly connected to the bidirectional lead screw. The second motor is a servo motor.

[0011] Preferably, in order to control the second motor, the second motor is electrically connected to the integrated control panel.

[0012] Preferably, in order to support the second mounting plate, an L-shaped reinforcing plate is fixedly installed at the lower end of the first mounting plate, and the second mounting plate is slidably installed on the upper end of the L-shaped reinforcing plate.

[0013] The beneficial effects of this utility model are: when in use, by rotating the bidirectional lead screw, the two correction plates move synchronously in opposite directions to squeeze and correct the crankshaft blank. Compared with the traditional correction method, the correction efficiency is greatly improved. Moreover, the T-shaped plate can be moved horizontally along the sliding groove by the first lead screw, thereby adapting to the correction needs of crankshaft blanks of different lengths. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the mounting base connection structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the second mounting plate in a moving state according to the present invention.

[0017] Figure 4 This is a schematic diagram of the connection structure of the drive component of this utility model.

[0018] Figure 5 This is a schematic diagram of the connection structure of the first mounting plate of this utility model.

[0019] In the diagram: 1. Mounting base; 2. Crankshaft blank body; 3. Placement groove; 4. Sliding groove; 5. First motor; 6. First lead screw; 7. T-shaped plate; 8. Electric cylinder; 9. Drive assembly; 901. Bidirectional lead screw; 902. Second motor; 10. First mounting plate; 11. Guide groove; 12. Threaded rod; 13. Sliding block; 14. Second mounting plate; 15. Square groove; 16. Correction plate; 17. Integrated control panel; 18. Handwheel; 19. L-shaped reinforcing plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5As shown, a straightening device for a forged crankshaft blank includes a mounting base 1 and a crankshaft blank body 2. The mounting base 1 has placement grooves 3 at both ends, and the crankshaft blank body 2 is installed in the placement grooves 3 at both ends. One end of the mounting base 1 has a sliding groove 4, in which a first lead screw 6 driven by a first motor 5 is rotatably mounted. A T-shaped plate 7 is threaded to the outer side of the first lead screw 6. An electric cylinder 8 is fixedly mounted on the upper end of the T-shaped plate 7. A first mounting plate 10 is fixedly mounted on the output end of the electric cylinder 8. A guide groove 11 is opened on one side of the first mounting plate 10, and a threaded rod 12 is rotatably mounted in the guide groove 11. A sliding block 13 is threaded to the outer side of the threaded rod 12. A second mounting plate 14 is fixedly mounted on one end of the sliding block 13. Both the first mounting plate 10 and the second mounting plate 14 have square grooves 15 at one end. A movable straightening plate 16 is installed in the square grooves 15 via a drive assembly 9. An integrated control panel 17 is fixedly mounted on one end of the mounting base 1.Both the first motor 5 and the electric cylinder 8 are electrically connected to the integrated control panel 17. The first motor 5 is fixedly installed on one side of the mounting base 1, and its output end is fixedly connected to the first lead screw 6. A handwheel 18 is fixedly installed on one end of the threaded rod 12. An L-shaped reinforcing plate 19 is fixedly installed on the lower end of the first mounting plate 10, and a second mounting plate 14 is slidably installed on the upper end of the L-shaped reinforcing plate 19. In use, one end of the integrated control panel 17 is connected to an external power source via a wire. First, the crankshaft blank body 2 is placed in the placement slot 3, and then... The crankshaft blank body 2 is inspected using a dial indicator or roundness tester. Both dial indicators and roundness testers are existing structures; a suitable dial indicator or roundness tester can be selected for inspection. The inspection process utilizes existing mature technologies. When the roundness of the crankshaft blank body 2 does not meet requirements, the two ends of the crankshaft blank body 2 are first fixed using external fixing devices. Then, the first motor 5 is manually started via the integrated control panel 17, driving the first lead screw 6 to rotate within the sliding groove 4, moving the T-shaped plate 7 to the lower end of the crankshaft blank body 2 where the roundness does not meet requirements. The first motor 5 is a servo motor, selected from the Siemens SINAMICSS120 series. Then, the electric cylinder 8 is started via the integrated control panel 17, driving the first mounting plate 10 and the second mounting plate 14 upwards, moving the correction plate 16 to both sides of the crankshaft blank body 2. The correction plate 16 on the first mounting plate 10 is used to correct the main journal, and the correction plate 16 on the second mounting plate 14 is used to correct the connecting rod journal. Finally, the drive assembly 9 is started via the integrated control panel 17, driving the correction plates 16 to move towards each other, thus correcting the crankshaft blank. The main body 2 undergoes extrusion correction, which significantly improves correction efficiency compared to traditional correction methods. The position of the T-shaped plate 7 is adjusted via the first lead screw 6 to accommodate the correction requirements of crankshaft blanks 2 of varying lengths. When correction is needed for the connecting rod journal on the other side, the handwheel 18 is manually turned, causing the threaded rod 12 to rotate. This moves the sliding block 13 within the guide groove 11, allowing the second mounting plate 14 to move to the lower end of the connecting rod journal on the other side for easier correction. The L-shaped reinforcing plate 19 provides support for the second mounting plate 14.

[0022] like Figure 4 and Figure 5 As shown, the drive assembly 9 includes a bidirectional lead screw 901 and a second motor 902. The bidirectional lead screw 901 is rotatably mounted in the square slot 15 and is threadedly connected to one end of the correction plate 16. The second motor 902 is fixedly mounted on one end of the first mounting plate 10 and the second mounting plate 14. The output end of the second motor 902 is threadedly connected to the bidirectional lead screw 901 and electrically connected to the integrated control panel 17. In use, the second motor 902 is a servo motor selected from the Siemens SINAMICSS120 series. First, the second motor 902 is manually started through the integrated control panel 17 to drive the bidirectional lead screw 901 to rotate, causing the correction plates 16 to move towards each other and to extrude and correct the crankshaft blank body 2.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A straightening device for a forged crankshaft blank, comprising a mounting base (1) and a crankshaft blank body (2), wherein the mounting base (1) has placement grooves (3) at both ends, and the crankshaft blank body (2) is installed in the placement grooves (3) at both ends, characterized in that: The mounting base (1) has a sliding groove (4) at one end. A first lead screw (6) driven by a first motor (5) is rotatably installed in the sliding groove (4). A T-shaped plate (7) is threadedly connected to the outside of the first lead screw (6). An electric cylinder (8) is fixedly installed on the upper end of the T-shaped plate (7). A first mounting plate (10) is fixedly installed at the output end of the electric cylinder (8). A guide groove (11) is opened on one side of the first mounting plate (10). A threaded rod (12) is rotatably installed in the guide groove (11). A sliding block (13) is threadedly connected to the outside of the threaded rod (12). A second mounting plate (14) is fixedly installed at one end of the sliding block (13). A square groove (15) is opened at one end of both the first mounting plate (10) and the second mounting plate (14). A movable correction plate (16) is installed in the square groove (15) through a drive assembly (9). An integrated control panel (17) is fixedly installed at one end of the mounting base (1).

2. The straightening device for forged crankshaft blanks according to claim 1, characterized in that: The first motor (5) and the electric cylinder (8) are both electrically connected to the integrated control panel (17).

3. The straightening device for forged crankshaft blanks according to claim 1, characterized in that: The first motor (5) is fixedly installed on one side of the mounting base (1), and the output end of the first motor (5) is fixedly connected to the first lead screw (6).

4. The straightening device for forged crankshaft blanks according to claim 1, characterized in that: A handwheel (18) is fixedly installed at one end of the threaded rod (12).

5. The straightening device for forged crankshaft blanks according to claim 1, characterized in that: The drive assembly (9) includes a bidirectional lead screw (901) and a second motor (902). The bidirectional lead screw (901) is rotatably mounted in the square groove (15). The bidirectional lead screw (901) is threadedly connected to one end of the correction plate (16). The second motor (902) is fixedly mounted on one end of the first mounting plate (10) and the second mounting plate (14). The output end of the second motor (902) is threadedly connected to the bidirectional lead screw (901).

6. The straightening device for forged crankshaft blanks according to claim 5, characterized in that: The second motor (902) is electrically connected to the integrated control panel (17).

7. The straightening device for forged crankshaft blanks according to claim 1, characterized in that: An L-shaped reinforcing plate (19) is fixedly installed at the lower end of the first mounting plate (10), and the second mounting plate (14) is slidably installed at the upper end of the L-shaped reinforcing plate (19).

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