Clamping and fixing device for bearing machining

Abstract

The utility model provides a clamping and fixing device for bearing machining, which relates to the technical field of bearing machining and comprises a mounting frame, an electric push rod, a placing plate, an outer surface rotating and clamping component, a lifting and rotating component, a cylindrical shell, a matching hole and an inner circle clamping component, according to the device, after the outer surface of the bearing is automatically clamped and fixed and the inner circle of the bearing is polished, the bearing does not need to be manually disassembled and transferred to other areas for clamping and fixing the inner circle of the bearing, clamping and fixing of the inner circle can be automatically completed, and outer surface polishing is achieved (at the moment, clamping and fixing of the outer surface are automatically relieved); the inner circle and the outer surface of the bearing are sequentially and automatically clamped and fixed on one device.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing processing, in particular to a clamping and fixing device for bearing processing. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy.

[0003] The inner circle and outer surface of the bearing need to be polished during the production process. Polishing can improve the performance, extend the service life, improve the processing accuracy and adapt to the needs of automated production. It has an important impact on the overall quality and performance of the bearing. A clamping and fixing mechanism is required in the grinding process of the bearing.

[0004] The current clamping and fixing mechanism can only achieve clamping and fixing of the inner circle or outer surface of the bearing in one processing direction. Therefore, after the inner circle / outer surface processing of the bearing is completed, the bearing needs to be manually removed and transferred to another area for secondary clamping and fixing before its outer surface / inner circle can be processed. It is impossible to automatically clamp and fix the inner circle and outer surface of the bearing in sequence with a set of devices. Utility Model Content

[0005] The purpose of the present invention is to solve the problems raised in the above background technology, and then proposes a clamping and fixing device for bearing processing.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A clamping and fixing device for bearing processing, comprising a mounting frame, an electric push rod, a placement plate, an outer surface rotation clamping assembly, a lifting and rotating assembly, a cylindrical shell, a matching hole, and an inner circle clamping assembly.

[0008] The electric push rods are symmetrically arranged on the mounting frame;

[0009] The placement plate is connected to an electric push rod, and a through hole is opened on the placement plate to allow the cylindrical shell to pass through;

[0010] The outer surface rotating clamping assembly is symmetrically arranged on the mounting frame;

[0011] The lifting and rotating assembly is arranged on the mounting frame and is located between the two electric push rods;

[0012] The cylindrical shell is connected to a lifting and rotating assembly, and an inner circle clamping assembly is symmetrically arranged inside the cylindrical shell;

[0013] The matching holes are symmetrically arranged on the cylindrical shell and matched with the inner circle clamping component.

[0014] Furthermore, the outer surface rotation clamping assembly includes a cylinder, a first servo motor and an outer surface clamping plate. The cylinder is symmetrically arranged on the mounting frame, the cylinder is connected to the first servo motor, and the first servo motor is connected to the outer surface clamping plates distributed opposite each other.

[0015] Furthermore, the lifting and rotating assembly includes an electric cylinder and a second servo motor. The mounting frame is provided with an electric cylinder located between the two electric push rods. The electric cylinder is connected to the second servo motor, and the second servo motor is connected to the cylindrical shell.

[0016] Furthermore, the inner circle clamping assembly includes a fixing plate, a micro cylinder and an inner circle clamping plate. The fixing plate is arranged inside the cylindrical shell, and the micro cylinder is symmetrically arranged on the fixing plate. The micro cylinder is connected to the inner circle clamping plate which is distributed opposite to the matching hole and is adapted to the size of the matching hole.

[0017] Furthermore, the outer surface clamping plate and the inner circle clamping plate are both arc-shaped and fit with the bearing.

[0018] Furthermore, the main body of the placement plate is circular and its diameter is smaller than the diameter of the bearing.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] Compared with the existing technology, after this device automatically completes the clamping and fixing of the outer surface of the bearing and the grinding of the inner circle, there is no need to manually disassemble the bearing and transfer it to other areas for clamping and fixing its inner circle. It can automatically complete the clamping and fixing of the inner circle and realize the grinding of the outer surface (at this time the clamping and fixing of the outer surface is automatically released), and automatically clamp and fix the inner circle and outer surface of the bearing in turn on a set of devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 is a schematic diagram of a cylindrical shell;

[0023] Figure 3 is a schematic diagram of a through hole;

[0024] Reference numerals:

[0025] 1. Mounting frame; 11. Electric push rod; 12. Placement plate; 13. Through hole; 21. Cylinder; 22. First servo motor; 23. Outer surface clamping plate; 31. Electric cylinder; 32. Second servo motor; 33. Cylindrical shell; 331. Fitting hole; 34. Fixing plate; 35. Micro cylinder; 36. Inner circle clamping plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative work are within the scope of protection of the present invention. The present invention is further described in conjunction with the drawings and embodiments:

[0027] like Figures 1 to 3 As shown, a clamping and fixing device for bearing processing includes a mounting frame 1, an electric push rod 11, a placement plate 12, an outer surface rotation clamping assembly, a lifting and rotating assembly, a cylindrical shell 33, a matching hole 331, and an inner circle clamping assembly.

[0028] The electric push rod 11 is symmetrically arranged on the mounting frame 1;

[0029] The placement plate 12 is connected to the electric push rod 11, and a through hole 13 is opened on the placement plate 12 to allow the cylindrical shell 33 to pass through (the main body of the placement plate 12 is circular and its diameter is smaller than the diameter of the bearing);

[0030] The outer surface rotating clamping assembly is symmetrically arranged on the mounting frame 1;

[0031] The lifting and rotating assembly is arranged on the mounting frame 1 and is located between the two electric push rods 11;

[0032] The cylindrical shell 33 is connected to a lifting and rotating assembly, and an inner circle clamping assembly is symmetrically arranged inside the cylindrical shell 33;

[0033] The matching holes 331 are symmetrically formed on the cylindrical shell 33 and match with the inner circle clamping assembly.

[0034] Further refinement of the embodiment of the present invention is as follows: Figure 1 and Figure 2 As shown, the outer surface rotation clamping assembly includes a cylinder 21, a first servo motor 22 and an outer surface clamping plate 23. The cylinder 21 is symmetrically arranged on the mounting frame 1, the cylinder 21 is connected to the first servo motor 22, and the first servo motor 22 is connected to the outer surface clamping plate 23 distributed oppositely.

[0035] Further refinement of the embodiment of the present invention is as follows: Figure 1 and Figure 2 As shown, the lifting and rotating assembly includes an electric cylinder 31 and a second servo motor 32 . The mounting frame 1 is provided with the electric cylinder 31 located between the two electric push rods 11 . The electric cylinder 31 is connected to the second servo motor 32 , and the second servo motor 32 is connected to the cylindrical shell 33 .

[0036] Further refinement of the embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the inner circle clamping assembly includes a fixed plate 34, a micro cylinder 35 and an inner circle clamping plate 36. The fixed plate 34 is arranged inside the cylindrical shell 33, and the micro cylinder 35 is symmetrically arranged on the fixed plate 34. The micro cylinder 35 is connected to the inner circle clamping plate 36 which is distributed opposite to the matching hole 331 and is adapted to the size of the matching hole 331.

[0037] Further refinement of the embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the outer surface clamping plate 23 and the inner circle clamping plate 36 are both arc-shaped and fit with the outer surface and the inner circle of the bearing respectively.

[0038] It should be noted that the electric push rod 11 , the cylinder 21 , the first servo motor 22 , the electric cylinder 31 , the second servo motor 32 and the micro cylinder 35 are all electrically connected to the controller, which is not shown in the figure.

[0039] The workflow of this utility model:

[0040] First, the bearing is placed steadily on the placement plate 12. The bearing is not shown in the figure and the size and model of the several bearings that need to be clamped and fixed are all the same. After the placement is completed, the controller controls the electric push rod 11 to work and drive the placement plate 12 to rise slowly and uniformly. When the bearing rises to a preset height, the controller controls the electric push rod 11 to stop working. At this time, the bearing is just between the two outer surface clamping plates 23;

[0041] Then the controller controls the two groups of cylinders 21 to work and drive the outer surface clamping plate 23 to move synchronously toward the center, and then the outer surface clamping plate 23 will fit with the bearing and clamp it stably (the diameter of the placement plate 12 is smaller than the diameter of the bearing, so the outer surface clamping of the bearing is not hindered), and then the inner circle of the bearing can be ground (the grinding equipment is not shown in the figure and belongs to the prior art and will not be described. It can be completed by using a six-degree-of-freedom robotic arm to drive the grinding assembly). During the inner circle grinding process, the orientation of the bearing can be fine-tuned by the synchronous drive of the two first servo motors 22 to better achieve inner circle grinding (fine-tuning is also optional). When the inner circle of the bearing is finished grinding, the bearing is immediately moved back to the horizontal position to facilitate the subsequent automatic clamping and fixation of the inner circle of the bearing;

[0042] After the inner circle of the bearing is polished, the controller controls the electric cylinder 31 to move and drive the cylindrical shell 33 to move upward (the second servo motor 32 is not working at this time and the inner circle clamping plate 36 is inside the cylindrical shell 33. At the same time, the electric push rod 11 drives the placement plate 12 to move downward so that the cylindrical shell 33 passes through the through hole 13). When the cylindrical shell 33 rises to a preset height and just passes through the inner circle of the bearing, the controller controls the micro cylinder 35 and the cylinder 21 to move respectively. The micro cylinder 35 works to drive the inner circle clamping plate 36 to move outward synchronously. Then the inner circle clamping plate 36 passes through the matching hole 331 and contacts the inner circle wall of the bearing, and then the bearing can be clamped and fixed from the inner circle.

[0043] After the inner circle of the bearing is clamped and fixed, the controller controls the cylinder 21 to move away from the bearing and release the clamping of the outer surface of the bearing. Then the controller controls the second servo motor 32 to work to realize the horizontal uniform rotation of the bearing, and then the grinding equipment can be used to grind the outer surface of the bearing again; after the inner circle and outer surface of the bearing are clamped and polished, the controller controls the micro cylinder 35 to release the clamping of the inner circle of the bearing and the bearing can be unloaded. After unloading is completed, the controller returns the placement plate 12 and the cylindrical shell 33 to their original positions (as shown in the attached manual). Figure 1 After the bearing is clamped and fixed, a new round of bearing clamping and fixing process can be started;

[0044] Compared with the existing technology, after this device automatically completes the clamping and fixing of the outer surface of the bearing and the grinding of the inner circle, there is no need to manually disassemble the bearing and transfer it to other areas for clamping and fixing its inner circle. It can automatically complete the clamping and fixing of the inner circle and realize the grinding of the outer surface (at this time the clamping and fixing of the outer surface is automatically released), and automatically clamp and fix the inner circle and outer surface of the bearing in turn on a set of devices.

[0045] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping and fixing device for bearing processing, characterized in that: It includes a mounting frame (1), an electric push rod (11), a placement plate (12), an outer surface rotation clamping assembly, a lifting rotation assembly, a cylindrical shell (33), a matching hole (331), and an inner circle clamping assembly. The electric push rod (11) is symmetrically arranged on the mounting frame (1); The placement plate (12) is connected to the electric push rod (11), and a through hole (13) is provided on the placement plate (12) to allow the cylindrical shell (33) to pass through; The outer surface rotating clamping assembly is symmetrically arranged on the mounting frame (1); The lifting and rotating assembly is arranged on the mounting frame (1) and is located between the two electric push rods (11); The cylindrical shell (33) is connected to a lifting and rotating assembly, and an inner circle clamping assembly is symmetrically arranged inside the cylindrical shell (33); The matching holes (331) are symmetrically arranged on the cylindrical shell (33) and matched with the inner circle clamping assembly.

2. A clamping and fixing device for bearing processing according to claim 1, characterized in that: The outer surface rotation clamping assembly comprises a cylinder (21), a first servo motor (22) and an outer surface clamping plate (23); the cylinder (21) is symmetrically arranged on the mounting frame (1); the cylinder (21) is connected to the first servo motor (22); and the first servo motor (22) is connected to the outer surface clamping plates (23) that are arranged opposite to each other.

3. The clamping and fixing device for bearing processing according to claim 1, characterized in that: The lifting and rotating assembly comprises an electric cylinder (31) and a second servo motor (32); the mounting frame (1) is provided with the electric cylinder (31) located between the two electric push rods (11); the electric cylinder (31) is connected to the second servo motor (32); and the second servo motor (32) is connected to the cylindrical shell (33).

4. A clamping and fixing device for bearing processing according to claim 2, characterized in that: The inner circle clamping assembly includes a fixing plate (34), a micro cylinder (35) and an inner circle clamping plate (36). The fixing plate (34) is arranged inside the cylindrical shell (33). The micro cylinder (35) is symmetrically arranged on the fixing plate (34). The micro cylinder (35) is connected to the inner circle clamping plate (36) which is distributed opposite to the matching hole (331) and has a size adapted to the matching hole (331).

5. A clamping and fixing device for bearing processing according to claim 4, characterized in that: The outer surface clamping plate (23) and the inner circle clamping plate (36) are both arc-shaped and fit with the bearing.

6. The clamping and fixing device for bearing processing according to claim 1, characterized in that: The main body of the placement plate (12) is circular in shape and has a diameter smaller than that of the bearing.

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