Clamping device for large gear machining

Abstract

The utility model belongs to the technical field of large gear machining, and particularly relates to a clamping device for large gear machining. Comprising a device shell, a cavity is formed in the device shell, and the cavity is divided into an operation cavity located on the upper portion and a driving cavity located on the lower portion through a partition plate; a plurality of sets of synchronous clamping assemblies are arranged in the operation cavity, a driving assembly in transmission connection to the synchronous clamping assemblies is arranged in the driving cavity, and a plurality of sets of lifting adjusting assemblies penetrating through the partition plate are arranged in the driving cavity. According to the gear clamping device, through the design of the multiple sets of synchronous clamping assemblies, a gear can be clamped conveniently and rapidly, manual complex operation is not needed, and use is convenient and rapid; according to the device, a gear can be lifted up through the lifting adjusting assembly, then the gear is pushed through the synchronous clamping assembly, the axis position of the gear is aligned with the device, and manual alignment is not needed; by means of the characteristics of the stepping motor and speed reduction of the gear set, the clamping head can be automatically locked, and danger is prevented from being generated in the machining process.

Description

Technical Field

[0001] The utility model belongs to the technical field of large gear processing and relates to a clamping device used for large gear processing. Background Art

[0002] Large gears are often used in industries such as mining, energy production, and transportation. Due to the large size of the gears, they are usually processed using the vertical gear shaping method. During processing, the gear blank needs to be fixed on a rotating disk, and the rotating disk drives the blank to rotate, so that the outer circle of the blank can be geared with a gear shaping cutter.

[0003] The gear blank needs to be provided with a number of circumferentially evenly distributed tightening blocks in its inner hole, so as to tighten the inner hole of the gear blank and fix its position to prevent the gear from sliding on the turntable during the plug-in process. The existing equipment needs to be installed manually, and the position of each screw and the center position of the gear blank need to be repeatedly checked during the installation process, which has low efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a clamping device for large gear processing with a reasonable design to solve the defects and shortcomings of the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A clamping device for large gear processing includes a device shell with a cavity formed in the device shell. The cavity is divided into an operating chamber located at the top and a driving chamber located at the bottom by a partition plate. An array of synchronous clamping assemblies is provided in the operating chamber, a driving assembly connected to the array of synchronous clamping assemblies is provided in the driving chamber, and an array of lifting and adjusting assemblies penetrating the partition plate are provided in the driving chamber.

[0007] Preferably, the driving assembly includes a driving motor arranged at the bottom of a driving cavity, a driving shaft is rotatably installed at a position on one side of the driving motor in the driving cavity, a driven shaft is rotatably installed at a position on one side of the driving shaft in the driving cavity, the driven shaft is located at the center of the driving cavity, and after the driven shaft moves through the partition plate, it is connected to a bevel gear 1; a driving gear is connected to the shaft of the driving motor, a reduction gear 1 meshing with the driving gear is provided on the driving shaft, a reduction gear 2 is provided on the driving shaft below the reduction gear 1, and a reduction gear 3 meshing with the reduction gear 2 is provided on the driven shaft; the diameter and the number of teeth of the reduction gear 1 are both larger than those of the driving gear, and the diameter and the number of teeth of the reduction gear 3 are both larger than those of the reduction gear 2.

[0008] Preferably, the array of synchronous clamping assemblies is evenly arranged around the center of the operating chamber, and the synchronous clamping assembly includes a threaded rod, both ends of the threaded rod are respectively installed on the partition plate through bearing seats, and the end of the threaded rod facing the center of the operating chamber is connected with a bevel gear 2, and the bevel gear 2 is meshed with the bevel gear 1; a number of sliding rails parallel to the threaded rod are provided below the threaded rod, and sliders are slidably installed on the several sliding rails, and the sliders are installed on the threaded rod through threads, and a clamping head is connected to the top of the slider through several driving rods, and a number of movable grooves are opened on the top surface of the device shell, and the several driving rods are all penetrated into the movable grooves, and the clamping head is located above the device shell.

[0009] Preferably, the lifting and adjusting assembly includes a lifting electric cylinder arranged at the bottom of the driving cavity, the lifting electric cylinder is arranged through the partition plate, a tray is connected to the telescopic shaft of the lifting electric cylinder, a plurality of movable rollers are movably provided on the upper side of the tray, and the top surface of the device shell is provided with lifting grooves matching several trays.

[0010] Preferably, the driving motor is a stepping motor.

[0011] Preferably, the clamping head is an arc-shaped member.

[0012] Preferably, a non-slip pad is connected to the front side of the clamping head.

[0013] After adopting the above structure, the beneficial effects of the utility model are:

[0014] 1. This device can clamp the gears quickly and easily through the design of an array of synchronous clamping components, without the need for complicated manual operations, and is easy and quick to use.

[0015] 2. This device can lift the gear through the lifting adjustment component, and then use the synchronous clamping component to push the gear to align the axis position of the gear with the device without manual alignment.

[0016] 3. This device utilizes the characteristics of the stepper motor and the gear set deceleration to automatically lock the clamping head to prevent danger during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure in the operating chamber of the utility model;

[0019] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the drive assembly in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the synchronous clamping assembly in the utility model.

[0022] Description of reference numerals:

[0023] 1. Device housing; 2. Partition plate; 3. Drive chamber; 4. Operation chamber; 5. Drive motor; 6. Active rotating shaft; 7. Driven rotating shaft; 8. Drive gear; 9. Reduction gear 2; 10. Reduction gear 3; 11. Bevel gear 1; 12. Bevel gear 2; 13. Bearing seat; 14. Sliding rail; 15. Threaded rod; 16. Sliding block; 17. Drive rod; 18. Clamping head; 19. Anti-slip pad; 20. Lifting electric cylinder; 21. Tray; 22. Movable roller; 23. Movable slot; 24. Lifting slot; 25. Reduction gear 1. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 2 As shown, it includes a device shell 1, a cavity is opened in the device shell 1, and the cavity is divided into an operating chamber 4 located at the top and a driving chamber 3 located at the bottom by a partition plate 2; an array of synchronous clamping components is arranged in the operating chamber 4, a driving component transmission-connected to the array of synchronous clamping components is arranged in the driving chamber 3, and an array of lifting adjustment components penetrating the partition plate 2 is arranged in the driving chamber 3.

[0026] See also Figure 1-Figure 4 As shown, the driving assembly includes a driving motor 5 arranged at the bottom of the driving chamber 3, a driving shaft 6 is rotatably installed at a position on one side of the driving motor 5 in the driving chamber 3, a driven shaft 7 is rotatably installed at a position on one side of the driving shaft 6 in the driving chamber 3, the driven shaft 7 is located at the center of the driving chamber 3, and after the driven shaft 7 moves through the partition plate 2, it is connected with a bevel gear 11; a driving gear 8 is connected to the shaft of the driving motor 5, the driving shaft 6 is provided with a reduction gear 1 25 meshing with the driving gear 8, a reduction gear 2 9 is provided on the driving shaft 6 at a position below the reduction gear 1 25, and a reduction gear 3 10 meshing with the reduction gear 2 9 is provided on the driven shaft 7; the diameter and the number of teeth of the reduction gear 1 25 are both larger than those of the driving gear 8, the diameter and the number of teeth of the reduction gear 3 10 are both larger than those of the reduction gear 2 9, and the driving motor 5 is a stepping motor.

[0027] As an optimization scheme of the utility model, a driving motor 5 is used to output rotation, and then the driving shaft 6 is driven to rotate through the driving gear 8 and the reduction gear 1 25. Since the number of teeth of the driving gear 8 is less than that of the reduction gear 1 25, the rotation speed of the driving shaft 6 will be lower than the output rotation speed of the driving motor 5, and the torque will increase at the same time. Then the driving shaft 6 drives the driven shaft 7 to rotate through the reduction gear 2 9 and the reduction gear 3 10, and the torque is decelerated and increased again, and output to the bevel gear 1 11.

[0028] See also Figure 1-Figure 5 As shown, an array of synchronous clamping assemblies is evenly arranged around the center of the operating chamber 4, and the synchronous clamping assembly includes a threaded rod 15, both ends of the threaded rod 15 are respectively installed on the partition plate 2 through a bearing seat 13, and a bevel gear 2 12 is connected to one end of the threaded rod 15 facing the center of the operating chamber 4, and the bevel gear 2 12 is meshed with the bevel gear 1 11; a number of sliding rails 14 parallel to the threaded rod 15 are provided below the threaded rod 15, and sliders 16 are slidably installed on the several sliding rails 14, and the sliders 16 are installed on the threaded rod 15 through threads, and a clamping head 18 is connected to the top of the slider 16 through a number of driving rods 17, and a number of movable grooves 23 are opened on the top surface of the device housing 1, and a number of driving rods 17 are all inserted into the movable grooves 23, and the clamping head 18 is located above the device housing 1; the clamping head 18 is an arc-shaped component, and a non-slip pad 19 is connected to the front side of the clamping head 18.

[0029] As an optimization scheme of the utility model, a bevel gear 11 is utilized to drive several bevel gears 2 12 to rotate synchronously, thereby driving the threaded rod 15 to rotate, and the threaded driving slider 16 slides along the sliding rail 14, thereby driving the driving rod 17 to move in the movable groove 23, and making the clamping head 18 and the anti-slip pad 19 contact with the inner hole wall of the gear, thereby clamping.

[0030] See also Figure 1-Figure 3 As shown, the lifting adjustment component includes a lifting electric cylinder 20 arranged at the bottom of the driving chamber 3. The lifting electric cylinder 20 is arranged through the partition plate 2. A tray 21 is connected to the telescopic axis of the lifting electric cylinder 20. A plurality of movable rollers 22 are movably provided on the upper side surface of the tray 21. The top surface of the device housing 1 is provided with lifting grooves 24 matching the plurality of trays 21.

[0031] As an optimization solution of the utility model, the tray 21 is driven to move up and down by extending and retracting the lifting electric cylinder 20. When the tray 21 moves upward from the lifting slot 24, the gear is lifted and the gear can slide on the movable roller 22. When the tray 21 returns to the operating chamber 4, the gear returns to the device housing 1.

[0032] The use process of this utility model:

[0033] First, start the drive motor 5 to rotate. After the rotation is reduced, the clamping head 18 is driven to move inward through several bevel gears 12, and then the lifting cylinder 20 is retracted to lift the gear onto the device housing 1 to align the center of the gear: start the drive motor 5 to rotate in the opposite direction to drive the clamping head 18 to move outward close to the inner hole wall of the gear. When any clamping head 18 touches the gear, the drive motor 5 can be stopped, and then the lifting cylinder 20 is started to extend, driving the tray 21 to extend from the lifting slot 24 to lift the gear. The lifting cylinder 20 can be stopped when the gear leaves the top surface of the device housing 1 by 3 to 5 mm. At this time, the tray 21 and the lifting electric cylinder 20 bear the weight of the gear, and the clamping head 18 and the anti-skid pad 19 limit the gear to prevent it from slipping. Then the driving motor 5 is started to rotate, driving the clamping head 18 to push outward. Since the gear can move in any direction on the movable roller 22 of the tray 21, several clamping heads 18 are pushed outward synchronously, so that the center of the gear can correspond to the center of the device housing 1, that is, the alignment of the gear is completed, and then the driving motor 5 is started again to drive the clamping head 18 to release the gear and retract the lifting electric cylinder 20. The tray 21 returns to the operating chamber 4, and the gear moves down and returns to the device housing 1;

[0034] Then start the drive motor 5 to drive several clamping heads 18 to clamp the gears. When the pressure is reached, stop the drive motor 5. The drive motor 5 is a stepper motor and can be automatically locked when there is no pulse. At the same time, with the friction between the threaded rod 15 and the slider 16 and the torque ratio generated by multiple gears, the position of the slider 16 and the clamping head 18 can be easily locked to prevent retreat, so that processing can be carried out safely.

[0035] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or within the equivalent forms of such scope and boundaries.

Claims

1. A clamping device for large gear machining, comprising a device housing (1), characterized in that: A cavity is provided in the housing (1) of the device, and the cavity is divided into an operating cavity (4) located at the top and a driving cavity (3) located at the bottom by a partition plate (2); a plurality of synchronous clamping components are provided in the operating cavity (4), a driving component connected to the plurality of synchronous clamping components is provided in the driving cavity (3), and a plurality of lifting adjustment components penetrating the partition plate (2) are provided in the driving cavity (3).

2. A clamping device for large gear machining according to claim 1, characterized in that: The driving assembly comprises a driving motor (5) arranged at the bottom of the driving chamber (3); a driving shaft (6) is rotatably mounted at one side of the driving motor (5) in the driving chamber (3); a driven shaft (7) is rotatably mounted at one side of the driving shaft (6) in the driving chamber (3); the driven shaft (7) is located at the center of the driving chamber (3); and the driven shaft (7) is connected to a bevel gear (11) after movably passing through the partition plate (2); A driving gear (8) is connected to the driving shaft (6), a reduction gear 1 (25) meshing with the driving gear (8) is provided on the driving shaft (6), a reduction gear 2 (9) is provided below the reduction gear 1 (25) on the driving shaft (6), and a reduction gear 3 (10) meshing with the reduction gear 2 (9) is provided on the driven shaft (7); the diameter and the number of teeth of the reduction gear 1 (25) are both greater than those of the driving gear (8), and the diameter and the number of teeth of the reduction gear 3 (10) are both greater than those of the reduction gear 2 (9).

3. A clamping device for large gear machining according to claim 2, characterized in that: The synchronous clamping assembly of the array is evenly arranged around the center of the operating chamber (4), and the synchronous clamping assembly includes a threaded rod (15), both ends of the threaded rod (15) are respectively installed on the partition plate (2) through a bearing seat (13), and the end of the threaded rod (15) facing the center of the operating chamber (4) is connected with a bevel gear 2 (12), and the bevel gear 2 (12) is meshed with the bevel gear 1 (11); a plurality of sliding rails (14) parallel to the threaded rod (15) are arranged below the threaded rod (15), and a slider (16) is slidably installed on the plurality of sliding rails (14), and the slider (16) is installed on the threaded rod (15) through threads, and a clamping head (18) is connected to the top of the slider (16) through a plurality of driving rods (17), and a plurality of movable grooves (23) are opened on the top surface of the device housing (1), and the plurality of driving rods (17) are all inserted into the movable grooves (23), and the clamping head (18) is located above the device housing (1).

4. A clamping device for large gear machining according to claim 3, characterized in that: The lifting adjustment component includes a lifting electric cylinder (20) arranged at the bottom of the driving chamber (3), the lifting electric cylinder (20) is arranged to penetrate the partition plate (2), a tray (21) is connected to the telescopic shaft of the lifting electric cylinder (20), a plurality of movable rollers (22) are movably provided on the upper side of the tray (21), and a lifting groove (24) matching with the plurality of trays (21) is opened on the top surface of the device housing (1).

5. A clamping device for large gear machining according to claim 4, characterized in that: The driving motor (5) is a stepping motor.

6. A clamping device for large gear machining according to claim 5, characterized in that: The clamping head (18) is an arc-shaped component.

7. A clamping device for large gear machining according to claim 6, characterized in that: The front side of the clamping head (18) is connected with an anti-slip pad (19).

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