Numerical control inner hole grinding machine

Abstract

The utility model discloses a numerical control inner hole grinding machine, which belongs to the technical field of machining and comprises a rack, two hydraulic rods are fixedly mounted on the inner top wall of the rack, a movable frame is fixedly mounted at the telescopic ends of the two hydraulic rods, and a rotating motor is fixedly mounted on the bottom surface of the movable frame. A rotating table is fixedly mounted at the power output end of the rotating motor, a mounting frame is fixedly mounted on the bottom surface of the rotating table, the rotating motor is arranged in the mounting frame, and the power output end of the rotating motor penetrates through the mounting frame and is fixedly provided with a connecting gear; rack plates are fixedly mounted on the side faces, close to each other, of the two moving plates, and grinding blocks are fixedly mounted on the side faces, away from each other, of the two moving plates. According to the numerical control inner hole grinding machine, by arranging the mounting frame, the rotating motor, the connecting gear, the moving plate, the rack plate and the grinding block, the purpose that inner holes with different diameters are ground through the same grinding head is achieved.

Description

Technical Field

[0001] The present application belongs to the field of mechanical processing technology, and in particular relates to a CNC internal hole grinder. Background Art

[0002] A grinder is a machine tool that uses abrasive tools to grind the surface of a workpiece. With the increase in the number of high-precision and high-hardness mechanical parts, workers often use grinders to grind the inner holes of parts to make the inner holes smooth and burr-free.

[0003] The utility model with the existing authorization announcement number CN218051719U discloses an automated internal hole grinder based on mechanical processing, including a base, a support frame fixedly connected to the upper surface of the base, a chassis fixedly connected to the top of the support frame, a hydraulic telescopic rod fixedly connected to the output end of the chassis, a mounting groove is provided at the bottom end of the hydraulic telescopic rod, a mounting rod is plugged into the inside of the mounting groove, a fixing groove is provided on the left side of the mounting rod, and a pin is plugged into the inside of the fixing groove.

[0004] The above-mentioned technical scheme is adopted to solve the problem that it is inconvenient to replace the grinding head of the existing automatic internal hole grinder based on mechanical processing. However, when the above-mentioned technical scheme is used, the structure of the inner hole of most workpieces is relatively complex, and there are inner holes of different diameters mixed in the same inner hole. Therefore, when workers grind the inner holes, they need to frequently replace the grinding head, which increases the grinding time and reduces the work efficiency of the workers.

[0005] To this end, we proposed a CNC internal hole grinder to solve the above problems. Utility Model Content

[0006] The purpose of the present application is to solve the problem in the prior art that the same grinding head is not convenient for grinding inner holes of different diameters, and to propose a CNC inner hole grinder.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A CNC internal hole grinding machine comprises a frame, wherein two hydraulic rods are fixedly mounted on the inner top wall of the frame, a moving frame is fixedly mounted on the telescopic ends of the two hydraulic rods, a rotating motor is fixedly mounted on the bottom surface of the moving frame, a rotating table is fixedly mounted on the output end of the rotating motor power, a mounting frame is fixedly mounted on the bottom surface of the rotating table, a rotating motor is arranged inside the mounting frame, the output end of the rotating motor power passes through the mounting frame and is fixedly mounted with a connecting gear, two moving plates are arranged below the mounting frame, rack plates are fixedly mounted on the side surfaces of the two moving plates that are close to each other, the side surfaces of the two rack plates that are close to each other are meshed with the outer surface of the connecting gear, and grinding blocks are fixedly mounted on the side surfaces of the two moving plates that are away from each other.

[0009] Preferably, a base is fixedly mounted on the bottom surface of the frame, and two sets of universal wheels are fixedly mounted on the bottom surface of the base.

[0010] Preferably, two electric push rods are fixedly mounted on the inner bottom wall of the frame, and a clamping plate is fixedly mounted on the telescopic end of each of the electric push rods.

[0011] Preferably, a connecting bearing is fixedly mounted on the bottom surface of the movable frame, and the bottom surface of the inner ring of the connecting bearing is fixedly connected to the upper surface of the rotating table.

[0012] Preferably, two fixing brackets are fixedly mounted on the outer surface of the rotating electrical machine, and the bottom surface of each of the fixing brackets is fixedly connected to the inner bottom wall of the mounting bracket.

[0013] Preferably, a slider is fixedly mounted on the upper surface of each movable plate, two slide grooves are provided on the bottom surface of the mounting frame, and each slider is slidably connected inside the slide groove.

[0014] Preferably, a slide plate is fixedly mounted on the upper surface of each rack plate, two slide rails are provided on the bottom surface of the mounting frame, and each slide plate is slidably connected to the inside of the slide rail.

[0015] Preferably, a cylinder is fixedly mounted on one side of the two movable plates that are close to each other, and the cylinder is located below the rack plate.

[0016] To sum up, the technical effects and advantages of the present application are as follows: by providing a mounting frame, a rotating motor, a connecting gear, a movable plate, a rack plate and a grinding block, the power provided by the rotating motor is cooperated with the connecting gear to drive the rack plate, the movable plate and the grinding block to move relative to each other, thereby achieving the purpose of adjusting the distance between the two grinding blocks, and then when workers grind holes of different diameters on the same inner hole, there is no need for workers to disassemble and replace the grinding head, thereby increasing the workers' processing efficiency; by providing a frame, a hydraulic rod, a movable frame, a rotating motor and a rotating table, the power provided by the hydraulic rod is used to extend the grinding mechanism into the inner hole of the part, and at the same time, the power provided by the rotating motor is used to cooperate with the rotating table to drive the grinding block to rotate, thereby achieving the purpose of grinding the inner hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural diagram of the frame of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of a bottom-up cross-sectional view of the frame of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of a cross-sectional view of the mobile frame of the utility model;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of a sectional view of the mounting frame of the utility model;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the mounting frame of the utility model from bottom view.

[0022] In the figure: 1. frame; 2. hydraulic rod; 3. moving frame; 4. rotating motor; 5. rotating table; 6. mounting frame; 7. rotating motor; 8. connecting gear; 9. moving plate; 10. rack plate; 11. grinding block; 12. base; 13. universal wheel; 14. electric push rod; 15. clamping plate; 16. connecting bearing; 17. fixed frame; 18. slider; 19. slide groove; 20. slide plate; 21. slide rail; 22. cylinder. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-5 A CNC internal hole grinding machine includes a frame 1, a base 12 is fixedly installed on the bottom surface of the frame 1, and two sets of universal wheels 13 are fixedly installed on the bottom surface of the base 12. The installation of the base 12 and the universal wheels 13 makes it convenient for workers to move the device, thereby increasing the convenience of moving the device.

[0025] Two hydraulic rods 2 are fixedly installed on the inner top wall of the frame 1, and a moving frame 3 is fixedly installed on the telescopic ends of the two hydraulic rods 2. Two electric push rods 14 are fixedly installed on the inner bottom wall of the frame 1, and a clamping plate 15 is fixedly installed on the telescopic end of each electric push rod 14. The power provided by the electric push rods 14 is used to drive the two clamping plates 15 to move toward a side close to each other, thereby clamping and fixing the parts to be polished, thereby minimizing the movement of the parts during the polishing process.

[0026] The bottom surface of the moving frame 3 is fixedly mounted with a rotating motor 4, the output end of the rotating motor 4 is fixedly mounted with a rotating table 5, and the bottom surface of the inner ring of the connecting bearing 16 is fixedly connected to the upper surface of the rotating table 5. The installation of the connecting bearing 16 plays a role in stabilizing the rotating table 5, thereby minimizing the shaking of the rotating table 5 when rotating, thereby ensuring the stability of the rotation of the rotating table 5.

[0027] A mounting frame 6 is fixedly mounted on the bottom surface of the rotating table 5, a rotating motor 7 is arranged inside the mounting frame 6, and two fixing frames 17 are fixedly mounted on the outer surface of the rotating motor 7. The bottom surface of each fixing frame 17 is fixedly connected to the inner bottom wall of the mounting frame 6. The installation of the fixing frames 17 plays a role in fixing the rotating motor 7, thereby avoiding the rotating motor 7 from rotating during operation as much as possible, thereby ensuring the working stability of the rotating motor 7.

[0028] The output end of the power of the rotating motor 7 passes through the mounting frame 6 and is fixedly installed with a connecting gear 8. Two movable plates 9 are arranged below the mounting frame 6. A slider 18 is fixedly installed on the upper surface of each movable plate 9. Two slide grooves 19 are provided on the bottom surface of the mounting frame 6. Each slider 18 is slidably connected inside the slide groove 19. The shape of the slider 18 is T-shaped, and the shape of the slide groove 19 matches the shape of the slider 18. The installation of the slider 18 and the slide groove 19 plays a role in limiting the moving trajectory of the movable plate 9, thereby minimizing the phenomenon that the movable plate 9 deviates from the moving trajectory during movement, thereby ensuring the stability of the movement of the movable plate 9.

[0029] A rack plate 10 is fixedly installed on the side where the two movable plates 9 are close to each other, and the side where the two rack plates 10 are close to each other are meshed with the outer surface of the connecting gear 8. A slide plate 20 is fixedly installed on the upper surface of each rack plate 10. Two slide rails 21 are provided on the bottom surface of the mounting frame 6. Each slide plate 20 is slidably connected to the inside of the slide rail 21. The shape of the slide plate 20 is T-shaped, and the shape of the slide rail 21 matches the shape of the slide plate 20. The installation of the slide plate 20 and the slide rail 21 serves to limit the moving trajectory of the rack plate 10, thereby ensuring the stability of the movement of the rack plate 10.

[0030] The grinding blocks 11 are fixedly installed on the side surfaces of the two movable plates 9 that are away from each other, and the cylinders 22 are fixedly installed on the side surfaces of the two movable plates 9 that are close to each other. The cylinders 22 are located below the rack plate 10. The power provided by the cylinders 22 allows the cylinders 22 to extend and retract along with the two movable plates 9, thereby supporting the two movable plates 9, avoiding changes in the distance between the two movable plates 9 during the grinding of the inner holes of the parts, and further ensuring the stability of the rotation of the movable plates 9.

[0031] The working principle of the utility model is as follows: when in use, the worker first places the parts to be polished between the two clamping plates 15, and then uses the power provided by the electric push rod 14 to drive the two clamping plates 15 to move toward the side close to each other, so that the clamping plates 15 fix the parts with processing, and then uses the power provided by the rotating motor 7 to drive the connecting gear 8 to rotate, so that the connecting gear 8 drives the two rack plates 10 meshing with it to move toward the side away from each other, and then the two rack plates 10 drive the moving plate 9 to move toward the side away from each other, so that the worker can adjust the size of the inner hole according to the size of the inner hole. The distance between the two grinding blocks 11 is slightly adjusted. During the movement of the grinding blocks 11, the cylinder 22 is used to provide power so that the cylinder 22 extends along with the distance between the two moving plates 9, thereby providing a good supporting effect on the two moving plates 9. After the adjustment is completed, the hydraulic rod 2 is used to provide power to drive the moving frame 3 to move downward, so that the grinding block 11 extends into the inner hole of the part. Then, the power provided by the rotating motor 4 is used to drive the rotating table 5 to rotate, so that the rotating table 5 drives the two grinding blocks 11 to grind the inner hole of the part. Therefore, when the worker does not grind the inner hole of the diameter, there is no need to replace the grinding head.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A CNC internal hole grinding machine, comprising a frame (1), characterized in that: Two hydraulic rods (2) are fixedly mounted on the inner top wall of the frame (1); a moving frame (3) is fixedly mounted on the telescopic ends of the two hydraulic rods (2); a rotating motor (4) is fixedly mounted on the bottom surface of the moving frame (3); a rotating table (5) is fixedly mounted on the output end of the power of the rotating motor (4); a mounting frame (6) is fixedly mounted on the bottom surface of the rotating table (5); a rotating motor (7) is arranged inside the mounting frame (6); the output end of the power of the rotating motor (7) passes through the mounting frame (6) and is fixedly mounted with a connecting gear (8); two moving plates (9) are arranged below the mounting frame (6); rack plates (10) are fixedly mounted on the sides of the two moving plates (9) that are close to each other; the sides of the two rack plates (10) that are close to each other are meshed with the outer surface of the connecting gear (8); and grinding blocks (11) are fixedly mounted on the sides of the two moving plates (9) that are away from each other.

2. A CNC internal hole grinding machine according to claim 1, characterized in that: A base (12) is fixedly mounted on the bottom surface of the frame (1), and two sets of universal wheels (13) are fixedly mounted on the bottom surface of the base (12).

3. A CNC internal hole grinding machine according to claim 1, characterized in that: Two electric push rods (14) are fixedly mounted on the inner bottom wall of the frame (1), and a clamping plate (15) is fixedly mounted on the telescopic end of each electric push rod (14).

4. A CNC internal hole grinding machine according to claim 1, characterized in that: A connecting bearing (16) is fixedly mounted on the bottom surface of the moving frame (3), and the bottom surface of the inner ring of the connecting bearing (16) is fixedly connected to the upper surface of the rotating platform (5).

5. The CNC internal hole grinding machine according to claim 1, characterized in that: Two fixing frames (17) are fixedly mounted on the outer surface of the rotating motor (7), and the bottom surface of each fixing frame (17) is fixedly connected to the inner bottom wall of the mounting frame (6).

6. The CNC internal hole grinding machine according to claim 1, characterized in that: A slider (18) is fixedly mounted on the upper surface of each movable plate (9), two slide grooves (19) are provided on the bottom surface of the mounting frame (6), and each slider (18) is slidably connected inside the slide groove (19).

7. The CNC internal hole grinding machine according to claim 1, characterized in that: A slide plate (20) is fixedly mounted on the upper surface of each rack plate (10), two slide rails (21) are provided on the bottom surface of the mounting frame (6), and each slide plate (20) is slidably connected inside the slide rail (21).

8. The CNC internal hole grinding machine according to claim 1, characterized in that: A cylinder (22) is fixedly mounted on one side of the two movable plates (9) that are close to each other. The cylinder (22) is located below the rack plate (10).

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