Manipulator trolley for heavy roll forging machine

Abstract

The invention discloses a manipulator trolley for a heavy roll forging machine, and relates to the technical field of heavy roll forging machines, the manipulator trolley comprises a trolley body for carrying a clamp, a driving mechanism, rollers, a U-shaped guide rail and at least two eccentric shafts, each eccentric shaft comprises a transmission section and eccentric sections, the eccentric sections are arranged at the two ends of each transmission section, and the transmission sections are in transmission connection with the driving mechanism; the axes of the eccentric sections are parallel to the axis of the transmission section, the axes of the eccentric sections on the two sides coincide, rollers are arranged at the ends, away from the transmission section, of the eccentric sections, the transmission section is rotationally connected with the vehicle body, the rollers are arranged in guide rail grooves of the U-shaped guide rails, and the height of the guide rail grooves is matched with the diameter of the rollers. The driving mechanism drives the eccentric shaft to move, the horizontal height of the vehicle body can be changed, the height of the clamp can be adjusted, the driving mechanism is used for automatically completing height adjustment, the device is suitable for the heavy roll forging machine, and the adjusting convenience and the adjusting precision are effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heavy roller forging machine, in particular to a mechanical hand trolley for heavy roller forging machine. BACKGROUND

[0002] There are two structural forms of the mechanical hand trolley for the existing small and medium-sized roller forging machine. The first one is the early commonly used suspension trolley, that is, the trolley is suspended on the guide rail welded on the side of the box body. The second one is the commonly used double linear guide rail form in recent years, that is, the trolley is placed on two linear guide rails through a sliding block. The trolley is provided with a clamp to hold the workpiece, and a height adjusting device is arranged to ensure the alignment of the center of the clamp and the center of the roller.

[0003] For the suspension trolley, the trolley is supported on the guide rail by the rollers rolling along the rolling direction and the eccentric shaft. One end of the eccentric shaft is provided with a roller, and the other end is a adjusting head. When adjusting the height, the combined wrench at the end of the adjusting head of the eccentric shaft is loosened, and then the two eccentric shafts are manually adjusted using a special wrench according to the center line of the roller forging machine roller. After the adjustment is completed, the combined wrench is tightened. For the linear guide rail trolley, the height adjusting device is located at the bottom end of the entire mechanical hand. When adjusting the height, the locking nut needs to be loosened first, and then tightened after the manual adjustment is completed. When the adjusting mechanism operates, not only the weight of the clamp and the trolley needs to be overcome, but also the weight of the longitudinal and transverse displacement devices needs to be overcome.

[0004] For the above two kinds of mechanical hand trolleys for roller forging machine, manual adjustment is required, and whether the adjustment is in place is confirmed by visual observation during the adjustment process. In addition, the limiting or locking mechanism needs to be loosened before the adjustment, and then tightened after the adjustment is completed. For heavy roller forging machine, manual adjustment is not practical, so the suspension trolley and the linear guide rail are not suitable for the mechanical hand of the heavy roller forging machine.

[0005] Therefore, people urgently need a mechanical hand trolley for heavy roller forging machine, which is suitable for heavy roller forging machine, has high height adjustment convenience and high height adjustment precision. SUMMARY

[0006] The purpose of the present application is to provide a mechanical hand trolley for heavy roller forging machine to solve the problems existing in the prior art. By using the cooperation of the driving mechanism, the eccentric shaft, the roller and the U-shaped guide rail, the trolley can be applied to the heavy roller forging machine, and the adjustment convenience and the adjustment precision of the height of the trolley body are improved.

[0007] In order to achieve the above object, the present application provides the following scheme: the present application provides a mechanical hand trolley for heavy roll forging machine, including a trolley body for carrying a clamp, a driving mechanism, a roller, a U-shaped guide rail and at least two eccentric shafts, the eccentric shafts include a transmission section and an eccentric section, both ends of the transmission section are provided with the eccentric section, the transmission section is in transmission connection with the driving mechanism, the axis of the eccentric section is parallel to the axis of the transmission section, the axes of the eccentric sections on both sides coincide, one end of the eccentric section away from the transmission section is provided with the roller, the transmission section is in rotary connection with the trolley body, the roller is arranged in the guide rail groove of the U-shaped guide rail, the height of the guide rail groove matches the diameter of the roller.

[0008] Preferably, the driving mechanism includes a driving motor, a worm and a turbine, the transmission sections of the two eccentric shafts are respectively in transmission connection with the same worm through the turbine, and the worm is in transmission connection with the driving motor.

[0009] Preferably, the rotation directions of the transmission sections of the two eccentric shafts are opposite.

[0010] Preferably, the worm is connected with a normally closed brake.

[0011] Preferably, the driving motor is a disc motor.

[0012] Preferably, the two side walls of the trolley body are provided with guide wheels, and the guide wheels contact the outer side walls of the U-shaped guide rail.

[0013] Preferably, a walking mechanism is arranged on the trolley body, the walking mechanism includes a hydraulic motor, a gear and a rack, the hydraulic motor is connected with the trolley body, the output shaft of the hydraulic motor is connected with the gear, the outer side wall of the U-shaped guide rail is provided with the rack, and the gear is in meshing connection with the rack.

[0014] Preferably, the roller is in rotary connection with the eccentric section.

[0015] Preferably, a connecting plate is arranged at the bottom of the trolley body, and the connecting plate is in rotary connection with the transmission section.

[0016] Preferably, the U-shaped guide rail is provided with a limiting piece for limiting the movement of the roller in the area corresponding to the lower trolley working position.

[0017] The present application mainly achieves the following technical effects compared with the prior art: When the height of the vehicle body needs to be adjusted, and then the height of the clamp is adjusted, the eccentric shaft can be driven to move by the driving mechanism, and the movement of the eccentric shaft is embodied as the circumferential rotation of the transmission section around the eccentric section due to the limiting effect of the U-shaped guide rail on the position of the roller, and the horizontal height of the vehicle body will change under the condition that the horizontal height of the roller remains unchanged, so that the height of the clamp is adjusted, and the height adjustment is automatically completed by the driving mechanism, which is suitable for heavy roll forging machines and effectively improves the adjustment convenience and adjustment accuracy.

[0018] The other schemes of the present application have the following technical effects compared with the prior art: The two eccentric shafts are driven to move by the same worm, the synchronous movement of the two eccentric shafts is realized, and the adjustment accuracy is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical schemes in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, the drawings in the following description can only be some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Fig. 1 It is a structural schematic diagram of the mechanical hand trolley for heavy roll forging machines in the embodiments of the present application. Fig. 2 It is an internal structural schematic diagram of the mechanical hand trolley for heavy roll forging machines in the embodiments of the present application. Among them, 1, driving motor; 2, worm; 3, turbine; 4, vehicle body; 5, guide wheel; 6, normally closed brake; 7, U-shaped guide rail; 8, roller; 9, eccentric shaft; 10, U-shaped groove; 11, connecting plate; 12, hydraulic motor; 13, gear; 14, rack. DETAILED DESCRIPTION

[0021] The technical schemes in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application, and obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] The purpose of the present application is to provide a mechanical hand trolley for heavy roll forging machines to solve the problems in the prior art, and the driving mechanism, eccentric shaft, roller and U-shaped guide rail can be matched to be suitable for heavy roll forging machines, and the adjustment convenience and adjustment accuracy of the height of the vehicle body are improved.

[0023] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0024] As shown in Figs. 1-2 A mechanical hand trolley for heavy roll forging machine is provided, which comprises a trolley body 4 for carrying a clamp, a driving mechanism, a roller 8, a U-shaped guide rail 7 and at least two eccentric shafts 9. The eccentric shaft 9 comprises a transmission section and an eccentric section. The transmission section is provided with the eccentric section at both ends. The transmission section and the eccentric section are integrally arranged. The transmission section is in transmission connection with the driving mechanism. The axis of the eccentric section is parallel to the axis of the transmission section. The axes of the two eccentric sections coincide. The roller 8 is arranged at the end of the eccentric section away from the transmission section. The transmission section is in rotational connection with the trolley body 4. The roller 8 is arranged in the guide rail groove of the U-shaped guide rail 7. The height of the guide rail groove matches the diameter of the roller 8. The driving mechanism drives the movement of the eccentric shaft 9. Due to the limiting effect of the U-shaped guide rail 7 on the position of the roller 8, the movement of the eccentric shaft 9 is embodied as the circumferential rotation of the transmission section around the eccentric section. In the case that the horizontal height of the roller 8 remains unchanged, the horizontal height of the trolley body 4 will change, thereby realizing the adjustment of the height of the clamp.

[0025] In an embodiment, the driving mechanism comprises a driving motor 1, a worm 2 and a turbine 3. The transmission sections of the two eccentric shafts 9 are respectively in transmission connection with the same worm 2 through the turbine 3. The worm 2 is in transmission connection with the driving motor 1. Compared with using two motors to respectively drive the movement of the two eccentric shafts 9, using the same worm 2 to drive the movement of the two eccentric shafts 9 can realize the synchronous movement of the two eccentric shafts 9, thereby improving the adjustment accuracy.

[0026] The rotation directions of the transmission sections of the two eccentric shafts 9 are opposite, so as to realize the vertical lifting of the trolley body 4.

[0027] Since the clamp on the trolley body 4 needs to clamp an article, in order to improve the locking effect of the height of the trolley body 4, the worm 2 is connected with a normally closed brake 6. When the height of the trolley body 4 needs to be adjusted, the air path is connected, the normally closed brake 6 is opened, the locking state of the worm 2 is released, the driving motor 1 is started, the worm 2 connected therewith is driven to rotate, the two turbines 3 meshing with the worm rotate synchronously, after the height adjustment of the trolley body 4 is completed, the normally closed brake 6 is closed, and the locking of the worm 2 is realized.

[0028] The driving motor 1 in the embodiment is a disc motor. In other embodiments, a servo motor can also be selected.

[0029] In an embodiment, the two side walls of the trolley body 4 are provided with guide wheels 5. The guide wheels 5 are in contact with the outer side walls of the U-shaped guide rail 7, so that the guide wheels 5 play a certain guiding role when the trolley body 4 moves on the U-shaped guide rail 7, thereby improving the movement stability of the trolley body 4.

[0030] In an embodiment, the vehicle body 4 is provided with a walking mechanism, which comprises a hydraulic motor 12, a gear 13 and a rack 14, the hydraulic motor 12 is connected with the vehicle body 4, the output shaft of the hydraulic motor 12 is connected with the gear 13, the outer side wall of the U-shaped guide rail 7 is provided with the rack 14, the gear 13 is engaged with the rack 14, the rotating movement output by the hydraulic motor 12 drives the gear 13 to rotate, since the rack 14 is fixed on the outer side wall of the U-shaped guide rail 7, the gear 13 engaged with the rack 14 moves along the length direction of the rack 14, thereby driving the vehicle body 4 to move along the U-shaped guide rail 7.

[0031] Since the roller 8 is used to cooperate with the eccentric shaft 9 to adjust the height of the vehicle body 4, the roller 8 needs to move in the U-shaped groove 10 of the U-shaped guide rail 7, therefore, the roller 8 is designed to be rotatably connected with the eccentric section, so as to reduce the friction of the roller 8 in the U-shaped groove 10 of the U-shaped guide rail 7.

[0032] The vehicle body 4 is rotatably connected with the transmission section, or the bottom of the vehicle body 4 is provided with a connecting plate 11, the connecting plate 11 is rotatably connected with the transmission section through a bearing, in the case of designing the connecting plate 11, the volume of the vehicle body 4 itself can be effectively reduced, so as to reduce the load when adjusting the height.

[0033] In order to limit the position of the vehicle body 4 on the U-shaped guide rail 7, a limiting piece for limiting the movement of the roller 8 is arranged in the area of the U-shaped guide rail 7 corresponding to the working position of the vehicle body 4, the limiting piece can be a limiting block, the limiting block is arranged in the U-shaped groove 10 of the U-shaped guide rail 7, and the limiting block is arranged in front of and behind the roller 8, the limiting block is bolted with the U-shaped guide rail 7, so as to realize the positioning of the vehicle body 4, or a horizontal telescopic rod is arranged outside the U-shaped guide rail 7, and a through hole is formed in the position of the U-shaped guide rail 7 corresponding to the horizontal telescopic rod, the end of the horizontal telescopic rod can extend into the U-shaped groove 10 of the U-shaped guide rail 7 through the through hole, thereby realizing the blocking of the roller 8, and the blocking here refers to the blocking in the front and back directions of the roller 8.

[0034] The adaptive changes according to actual needs are within the protection scope of the present application.

[0035] It should be noted that, for those skilled in the art, it is obvious that the present application is not limited to the details of the above-mentioned exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0036] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A robotic trolley for a heavy-duty roll forging machine, characterized in that, The device includes a vehicle body for mounting clamps, a drive mechanism, rollers, a U-shaped guide rail, and at least two eccentric shafts. Each eccentric shaft includes a transmission section and an eccentric section. The transmission section has eccentric sections at both ends and is connected to the drive mechanism. The axis of the eccentric section is parallel to the axis of the transmission section, and the axes of the two eccentric sections coincide. The roller is located at the end of the eccentric section away from the transmission section. The transmission section is rotatably connected to the vehicle body. The roller is disposed in the guide groove of the U-shaped guide rail, and the height of the guide groove matches the diameter of the roller.

2. The heavy-duty roll forging machine trolley according to claim 1, characterized in that, The drive mechanism includes a drive motor, a worm gear, and a turbine. The transmission sections of the two eccentric shafts are respectively connected to the same worm gear through the turbine, and the worm gear is connected to the drive motor.

3. The robotic trolley for a heavy-duty roll forging machine according to claim 2, characterized in that, The transmission sections of the two eccentric shafts rotate in opposite directions.

4. The robotic trolley for a heavy-duty roll forging machine according to claim 2, characterized in that, The worm gear is connected to a normally closed brake.

5. The heavy-duty roll forging machine trolley according to claim 2, characterized in that, The drive motor is a disc motor.

6. The robotic trolley for a heavy-duty roll forging machine according to claim 1, characterized in that, The two side walls of the vehicle body are equipped with guide wheels, which contact the outer side wall of the U-shaped guide rail.

7. The heavy-duty roll forging machine trolley according to claim 1, characterized in that, The vehicle body is equipped with a traveling mechanism, which includes a hydraulic motor, a gear, and a rack. The hydraulic motor is connected to the vehicle body, and the output shaft of the hydraulic motor is connected to the gear. The outer wall of the U-shaped guide rail is provided with a rack, and the gear meshes with the rack.

8. The robotic trolley for a heavy-duty roll forging machine according to claim 1, characterized in that, The roller is rotatably connected to the eccentric section.

9. The robotic trolley for a heavy-duty roll forging machine according to claim 1, characterized in that, A connecting plate is provided at the bottom of the vehicle body, and the connecting plate is rotatably connected to the transmission section.

10. The robotic trolley for a heavy-duty roll forging machine according to claim 1, characterized in that, The U-shaped guide rail is equipped with a limiting component in the area corresponding to the unloading working position to restrict the movement of the rollers.

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