Clamping device for main shaft forging

Abstract

The invention provides a clamping device for main shaft forging, which comprises a supporting frame, and a linear driving mechanism is arranged in the supporting frame; a base is arranged above the supporting frame, the bottom of the base is connected with a linear driving mechanism, and the two sides of the base are connected with the two sides of the supporting frame through sliding mechanisms respectively. A lifting frame is arranged at the top of the base, the top of the lifting frame is connected with a mounting table, a vertical support is vertically arranged at the top of one end of the mounting table, and a transmission shaft parallel to the linear driving mechanism is rotationally arranged in the top of the vertical support. When the device is used, one end of a main shaft blank is clamped through the mechanical arm, the mounting table is controlled to be driven by the lifting hydraulic cylinder to achieve height adjustment, the clamping base in the mechanical arm and the main shaft are kept coaxial as much as possible, the mechanical arm drives the main shaft to rotate, and therefore different faces are adjusted to make contact with a forging machine for forging.

Description

Technical Field

[0001] The invention relates to the technical field of forging clamping, in particular to a clamping device for spindle forging. Background Art

[0002] Forging is a processing method that uses a forging machine to apply pressure to a metal blank to cause it to undergo plastic deformation to obtain a forged piece with certain mechanical properties, a certain shape and size. It is widely used in the process of mechanical processing. In the process of forging a spindle with existing forging equipment, firstly, a high-temperature roasted metal blank is placed on a workbench, and then the forging hammer of the forging equipment is started to forge the metal blank into the required shape. During the forging process, a clamping device is required to clamp one end of the spindle and rotate it continuously, so that different surfaces of the spindle are in contact with the forging machine.

[0003] Because during the forging process, the spindle is kept as horizontal as possible so that the spindle surface can be in parallel contact with the forging machine hammer. The existing clamping device cannot be adjusted in height when in use. If the clamping device that originally clamps the thick spindle clamps the thin spindle during forging, there is a height difference between the two, resulting in the inability to make the spindle coaxially rotate with the manipulator when clamping the thin spindle. For this reason, we propose a clamping device for spindle forging. Summary of the invention

[0004] In view of the deficiency that the existing spindle forging clamping assembly cannot be height adjusted, the present invention provides a spindle forging clamping device, which has the advantages of allowing the mounting table to be height adjusted under the drive of the lifting frame, making the manipulator coaxial with the spindle, and solving the problems raised in the above background technology.

[0005] The technical solution of the present invention is achieved as follows: a clamping device for spindle forging, including a supporting frame, in which a linear drive mechanism is arranged; a base is arranged above the supporting frame, the bottom of the base is connected to the linear drive mechanism, and the two sides of the base are respectively connected to the two sides of the supporting frame through sliding mechanisms; a lifting frame is arranged on the top of the base, the top of the lifting frame is connected to the mounting table, a vertical bracket is vertically arranged on the top of one end of the mounting table, and a transmission shaft parallel to the linear drive mechanism is rotatably arranged in the top of the vertical bracket; one end of the transmission shaft extends to the outside of the mounting table and is connected to the manipulator, and the other end is located above the mounting table, and a driving device for driving the transmission shaft to rotate is provided on the mounting table.

[0006] Preferably, the linear drive mechanism includes a transmission chain located below the base, the transmission chain is connected to the bottom of the base, and two ends of the transmission chain are respectively located at two ends of the support frame; sprockets are respectively provided at both ends of the transmission chain, the middle part of the sprocket is installed on the support shaft, and both ends of the support shaft are respectively rotatably set in fixed seats, and the fixed seats are fixed to the top of the support frame; a first gearbox is provided at one end of the support frame, and the output shaft of the first gearbox is connected to one end of the support shaft adjacent thereto, and the input shaft of the first gearbox is connected to the first motor.

[0007] Preferably, the sliding mechanism includes guide rails respectively arranged on both sides of the top of the support frame; the four corners of the base are respectively provided with sliders corresponding to and matching the guide rails, and the sliders are slidably arranged on the guide rails, and driven by the linear drive mechanism, the base moves back and forth along the guide rails.

[0008] Preferably, the lifting frame includes a lifting hydraulic cylinder arranged in the middle of the top surface of the base, and the top of the lifting hydraulic cylinder is connected to the mounting platform; the four corners of the top of the base are respectively rotatably connected to the second support rod, the other end of the second support rod is rotatably connected to the first support rod, the second support rod and the first support rod form a "V" shape structure, and the top of the first support rod is respectively connected to the bottom of the mounting platform.

[0009] Preferably, the driving device includes a first bevel gear mounted on the transmission shaft, a second bevel gear is vertically meshed with one side of the first bevel gear, the second bevel gear is mounted on the output shaft of the second gearbox, the input end of the second gearbox is connected to the second motor, and the second motor and the second gearbox are both mounted above the mounting platform.

[0010] Preferably, a strip seat is provided below the first bevel gear, and the edge of the strip seat is connected to the mounting platform through a plurality of fixing frames; at least one bearing seat corresponding to the transmission shaft is provided on the strip seat, and the transmission shaft is rotatably mounted in the bearing seat.

[0011] Preferably, the manipulator includes a strip mounting seat coaxially arranged at the end of the transmission shaft away from the driving device, and two parallel support arms are rotatably connected on both sides of the strip mounting seat, and the support arms are inclined; the ends of the two support arms on the same side away from the strip mounting seat are respectively connected to the clamping arms, and the ends of the clamping arms away from the strip mounting seat are respectively bent toward the axis of the transmission shaft, and clamping seats are respectively provided on the ends of the clamping arms; the ends of the clamping arms away from the clamping seats are respectively rotatably connected to one end of the clamping hydraulic cylinder, the clamping hydraulic cylinder is inclined and the other end thereof is rotatably mounted on the support, and the support is respectively fixed to the end of the strip mounting seat away from the clamping seat.

[0012] Preferably, it further comprises a hydraulic control station, which is respectively connected to the clamping hydraulic cylinder and the lifting hydraulic cylinder through pipelines.

[0013] Compared with the prior art, when the present invention is in use, the support frame is set on one side of the forging bed, and then one end of the spindle blank is clamped by a manipulator, and the mounting table is controlled to achieve height adjustment under the drive of the lifting hydraulic cylinder, so that the clamping seat in the manipulator and the spindle are kept coaxial as much as possible, and then the manipulator is driven by the second motor to rotate, so that the manipulator drives the spindle to rotate, thereby adjusting different surfaces to contact with the forging machine for forging. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the specific installation structure of the robot arm of the present invention.

[0017] Figure 3 The schematic diagram of the structure of the manipulator holding the main shaft of the present invention is shown in FIG. Figure 1 .

[0018] Figure 4 The schematic diagram of the structure of the manipulator holding the main shaft of the present invention is shown in FIG. Figure 2 .

[0019] Figure 5 It is a side view of the present invention.

[0020] In the figure: 1. support frame; 2. support leg; 3. slider; 4. hydraulic control station; 5. first motor; 6. first gearbox; 7. guide rail; 8. fixed frame; 9. bearing seat; 10. first bevel gear; 11. second gearbox; 12. second motor; 13. strip seat; 14. lifting hydraulic cylinder; 15. vertical bracket; 16. support; 17. clamping hydraulic cylinder; 18. support arm; 19. clamping arm; 20. clamping seat; 21. strip mounting seat; 22. transmission chain; 23. fixed seat; 24. support shaft; 25. transmission shaft; 26. base; 27. first support rod; 28. second support rod; 29. ​​mounting table; 30. second bevel gear. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Reference Figures 1 to 5 The present invention provides a technical solution: a clamping device for spindle forging, comprising a support frame 1, a plurality of support legs 2 are arranged at the bottom of the support frame 1. A linear drive mechanism is arranged inside the support frame 1, and a base 26 is arranged above the support frame 1. Figure 1 As shown, the linear drive mechanism includes a transmission chain 22 located below the base 26, the transmission chain 22 is connected to the bottom of the base 26, the two ends of the transmission chain 22 are respectively located at the two ends of the support frame 1, and sprockets (not shown in the figure) are respectively provided at the two ends of the transmission chain 22, the middle part of the sprocket is installed on the support shaft 24, and the two ends of the support shaft 24 are respectively rotatably arranged in the fixed seat 23, and the fixed seat 23 is fixed to the top of the support frame 1;

[0023] A first gearbox 6 is provided at one end of the support frame 1, and an output shaft of the first gearbox 6 is connected to one end of a support shaft 24 adjacent thereto, while an input shaft of the first gearbox 6 is connected to a first motor 5. When in use, the first gearbox 6 and the first motor 5 are mounted on a base (not numbered in the figure), and the first motor 5 drives the transmission chain 22 to reciprocate after the first gearbox 6 changes speed. Both sides of the base 26 are connected to both sides of the support frame 1 through sliding mechanisms, respectively, so that the base 26 can reciprocate along the support frame 1 under the drive of the transmission chain 22;

[0024] like Figure 1 and Figure 3 As shown, the sliding mechanism structure here specifically includes guide rails 7 respectively arranged on both sides of the top of the support frame 1. Corresponding to the guide rails, sliders 3 corresponding to and matching the guide rails 7 are respectively arranged at the four corners of the base 26. The sliders 3 are slidably arranged on the guide rails 7. Driven by the linear drive mechanism, the base 26 is allowed to reciprocate along the guide rails 7. Limit seats are also arranged at both ends of the guide rails 7 to prevent the sliders 3 from falling off.

[0025] Furthermore, a lifting frame is provided on the top of the base 26, and the top of the lifting frame is connected to the mounting platform 29, such as Figure 5As shown, the lifting frame includes a lifting hydraulic cylinder 14 disposed in the middle of the top surface of the base 26, and the top of the lifting hydraulic cylinder 14 is connected to the mounting platform 29. The four corners of the top of the base 26 are rotatably connected with the second support rod 28, and the other end of the second support rod 28 is rotatably connected to the first support rod 27. The second support rod 28 and the first support rod 27 are in a "V"-shaped structure, and the top of the first support rod 27 is respectively connected to the bottom of the mounting platform 29. The second support rod 28 and the first support rod 27 can be closed. When the two are opened, the height of the second support rod 28 and the first support rod 27 is increased, and when the two are closed, the height of the second support rod 28 and the first support rod 27 is reduced, so the second support rod 28 and the first support rod 27 can be raised and lowered with the lifting hydraulic cylinder 14.

[0026] Furthermore, a vertical bracket 15 is vertically arranged on the top of one end of the mounting platform 29, and a transmission shaft 25 parallel to the linear drive mechanism is rotatably arranged in the top of the vertical bracket 15. One end of the transmission shaft 25 extends outside the mounting platform 29 and is connected to the manipulator, and the other end is located above the mounting platform 29. A driving device for driving the transmission shaft 25 to rotate is arranged on the mounting platform 29;

[0027] The present application also proposes a specific structure of the driving device, such as Figure 1 and Figure 4 As shown, the driving device includes a first bevel gear 10 mounted on a transmission shaft 25, and a second bevel gear 30 (such as Figure 4 As shown in FIG. 2 , the second bevel gear 30 is mounted on the output shaft of the second gearbox 11, the input end of the second gearbox 11 is connected to the second motor 12, the second motor 12 and the second gearbox 11 are both mounted above the mounting platform 29, and the second motor 12 drives the first bevel gear 10 and the second bevel gear 30 to rotate after the second gearbox 11 changes speed, so that the first bevel gear 10 drives the transmission shaft 25 to reciprocate. Specifically, as Figure 3 and Figure 4 As shown, when in use, the support frame 1 is set on one side of the forging bed, and then one end of the spindle blank is clamped by the manipulator. It should be noted that in actual use, the thickness of the spindle is different, so the height of the manipulator clamping the spindle is also different, so the mounting table 29 can be driven by the lifting hydraulic cylinder 14 to achieve height adjustment, so that the manipulator and the clamped spindle can be kept coaxial as much as possible, and then the manipulator can be driven by the second motor to rotate, so that the manipulator drives the spindle to rotate, thereby adjusting different surfaces to contact with the forging machine.

[0028] Furthermore, the present application also proposes a specific structure of the manipulator, such as Figure 2As shown, it comprises a strip-shaped mounting seat 21 coaxially arranged at one end of the transmission shaft 25 away from the driving device, and two parallel supporting arms 18 are rotatably connected to the two sides of the strip-shaped mounting seat 21, and the supporting arms 18 are arranged obliquely. The ends of the two supporting arms 18 on the same side away from the strip-shaped mounting seat 21 are respectively connected to the clamping arms 19, and the ends of the clamping arms 19 away from the strip-shaped mounting seat 21 are respectively bent toward the axis direction of the transmission shaft 25, and clamping seats 20 are respectively arranged at the ends of the clamping arms 19;

[0029] One end of the clamping arm 19 away from the clamping seat 20 is rotatably connected to one end of the clamping hydraulic cylinder 17. The clamping hydraulic cylinder 17 is tilted and the other end is rotatably mounted on the support 16. The support 16 is fixed to one end of the strip mounting seat 21 away from the clamping seat 20. When the clamping hydraulic cylinder 17 is extended and retracted, it can drive the two clamping arms 19 to rotate around the support arm 18, so that the two clamping arms 19 are closed or opened. The clamping seat is used to clamp the main shaft. The surface of the clamping seat 20 is provided with anti-slip textures, which can increase the friction force on the main shaft surface.

[0030] Based on the above embodiment, further optimization can be performed. When the clamping arm 19 clamps the main shaft, due to the heavy weight of the forging, the clamping arm 19 will drive the vertical bracket 15 to have a tendency to tilt forward, and the force supporting the clamping arm is completely applied to the vertical bracket 15 through the transmission shaft 25. Therefore, in order to make the transmission shaft 25 more stable and supportive, a strip seat 13 is provided under the first bevel gear 10, and the edge of the strip seat 13 is connected by multiple fixing frames 8 (such as Figure 3 The strip seat 13 is connected to the mounting platform 29, and at least one bearing seat 9 corresponding to the transmission shaft 25 is provided on the strip seat 13. The transmission shaft 25 is rotatably installed in the bearing seat 9. The bearing seat 9 and the vertical bracket 15 jointly support the transmission shaft 25, so that there are at least two supporting points on the transmission shaft 25, so that the transmission shaft 25 can be more stable. At the same time, the strip seat 13 is connected to the vertical bracket 15, thereby reducing the tendency of the vertical bracket 15 to tilt forward.

[0031] Based on the above embodiment, further optimization can be performed. The clamping hydraulic cylinder 17 and the lifting hydraulic cylinder 14 need to provide power when working, so the present application also includes a hydraulic control station 4, which is connected to the clamping hydraulic cylinder 17 and the lifting hydraulic cylinder 14 through pipelines. The hydraulic control station 4 in the present application is as follows: Figure 1 and Figure 3 As shown, it is arranged on the mounting platform 29, so as to prevent the oil pipes from being scattered on the ground; however, the hydraulic control station 4 can also be arranged on the ground on one side of the support frame 1. At this time, it should be noted that during the reciprocating movement of the mounting platform 29, it is necessary to prevent the oil pipes from being stuck.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping device for spindle forging, comprising a support frame (1), characterized in that: A linear drive mechanism is provided inside the support frame (1); A base (26) is provided above the support frame (1), the bottom of the base (26) is connected to the linear drive mechanism, and two sides of the base (26) are respectively connected to two sides of the support frame (1) via sliding mechanisms; A lifting frame is provided on the top of the base (26), and the top of the lifting frame is connected to the mounting platform (29). A vertical bracket (15) is vertically provided on the top of one end of the mounting platform (29). A transmission shaft (25) parallel to the linear drive mechanism is rotatably provided in the top of the vertical bracket (15); and, One end of the transmission shaft (25) extends outside the mounting platform (29) and is connected to the manipulator, and the other end is located above the mounting platform (29). A driving device for driving the transmission shaft (25) to rotate is provided on the mounting platform (29).

2. The main shaft forging clamping device according to claim 1, characterized in that: The linear drive mechanism comprises a transmission chain (22) located below the base (26), the transmission chain (22) is connected to the bottom of the base (26), and two ends of the transmission chain (22) are respectively located at two ends of the support frame (1); Sprocket wheels are respectively provided at both ends of the transmission chain (22), the middle of the sprocket wheels is mounted on the support shaft (24), both ends of the support shaft (24) are rotatably arranged in the fixed seat (23), and the fixed seat (23) is fixed to the top of the support frame (1); A first gearbox (6) is provided at one end of the support frame (1); an output shaft of the first gearbox (6) is connected to one end of a support shaft (24) adjacent thereto, and an input shaft of the first gearbox (6) is connected to a first motor (5).

3. The main shaft forging clamping device according to claim 2, characterized in that: The sliding mechanism comprises guide rails (7) respectively arranged on both sides of the top of the supporting frame (1); Slide blocks (3) corresponding to and matching the guide rail (7) are respectively arranged at the four corners of the base (26); the slide blocks (3) are slidably arranged on the guide rail (7); driven by the linear drive mechanism, the base (26) moves back and forth along the guide rail (7).

4. The main shaft forging clamping device according to claim 1, characterized in that: The lifting frame comprises a lifting hydraulic cylinder (14) arranged in the middle of the top surface of the base (26), and the top of the lifting hydraulic cylinder (14) is connected to the mounting platform (29); The four corners of the top of the base (26) are rotatably connected to second support rods (28), the other end of the second support rod (28) is rotatably connected to the first support rod (27), the second support rod (28) and the first support rod (27) are in a "V"-shaped structure, and the top of the first support rod (27) is respectively connected to the bottom of the mounting platform (29).

5. The main shaft forging clamping device according to claim 4, characterized in that: The driving device comprises a first bevel gear (10) mounted on a transmission shaft (25); a second bevel gear (30) is vertically meshed with one side of the first bevel gear (10); the second bevel gear (30) is mounted on an output shaft of a second gearbox (11); an input end of the second gearbox (11) is connected to a second motor (12); and the second motor (12) and the second gearbox (11) are both mounted above a mounting platform (29).

6. The main shaft forging clamping device according to claim 5, characterized in that: A strip-shaped seat (13) is provided below the first bevel gear (10), and the edge of the strip-shaped seat (13) is connected to the mounting platform (29) through a plurality of fixing frames (8); At least one bearing seat (9) corresponding to the transmission shaft (25) is provided on the strip-shaped seat (13), and the transmission shaft (25) is rotatably mounted in the bearing seat (9).

7. The main shaft forging clamping device according to claim 6, characterized in that: The manipulator comprises a strip-shaped mounting seat (21) coaxially arranged at one end of a transmission shaft (25) away from a driving device, two sides of the strip-shaped mounting seat (21) are rotatably connected to two parallel supporting arms (18), and the supporting arms (18) are arranged obliquely; One end of the two support arms (18) located on the same side away from the strip-shaped mounting seat (21) is connected to the clamping arm (19) respectively, and one end of the clamping arm (19) away from the strip-shaped mounting seat (21) is bent toward the axis direction of the transmission shaft (25), and a clamping seat (20) is provided on the end of the clamping arm (19); One end of the clamping arm (19) away from the clamping seat (20) is rotatably connected to one end of the clamping hydraulic cylinder (17). The clamping hydraulic cylinder (17) is tilted and the other end is rotatably mounted on the support (16). The support (16) is fixed to one end of the strip mounting seat (21) away from the clamping seat (20).

8. The main shaft forging clamping device according to claim 7, characterized in that: It also includes a hydraulic control station (4), which is connected to the clamping hydraulic cylinder (17) and the lifting hydraulic cylinder (14) through pipelines.

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