Numerical control cylindrical grinding machine for machining rotating shaft

Abstract

The utility model discloses a numerical control cylindrical grinding machine for processing a rotating shaft, which comprises a base and is characterized in that the upper side of the base is fixedly connected with a motor cavity, one end of the motor cavity is provided with a grinding wheel polishing mechanism, and the other end of the motor cavity is provided with an abrasive belt polishing mechanism; the grinding wheel polishing mechanism comprises a cavity, the cavity fixes the motor cavity, a center shaft of a grinding wheel is rotationally connected into the cavity, one side of the cavity is open, and the lower end of the opening in one side of the cavity is fixedly connected with a supporting base. The utility model relates to the technical field of grinding, in particular to a rotating shaft machining numerical control cylindrical grinding machine which can flexibly select grinding modes according to machining requirements of workpieces by integrating a grinding wheel grinding mechanism and an abrasive belt grinding mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding, in particular to a CNC cylindrical grinding machine for processing a rotating shaft. Background Art

[0002] Shaft machining on CNC cylindrical grinders typically requires the use of a single grinding mechanism, such as a grinding wheel or belt. These devices are often complex in structure, cumbersome to operate, and cannot perform both wheel and belt grinding simultaneously, resulting in low production efficiency. Furthermore, the support and positioning of the shaft during machining are often imprecise, affecting machining accuracy and workpiece quality. Furthermore, vibration is also a significant factor affecting machining quality. An effective vibration compensation mechanism can significantly extend the life of the grinder. Therefore, a cylindrical grinder with a vibration compensation mechanism, integrated with both wheel and belt grinding methods, was designed to support and position the workpiece. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a CNC cylindrical grinder for rotating shaft processing, which can flexibly select the grinding method according to the processing requirements of the workpiece by integrating the two mechanisms of grinding wheel grinding and belt grinding.

[0004] A CNC cylindrical grinding machine for processing a rotating shaft comprises a base, wherein the upper side of the base is fixedly connected to a motor cavity, one end of the motor cavity is provided with a grinding wheel grinding mechanism, and the other end of the motor cavity is provided with a sanding belt grinding mechanism;

[0005] The grinding wheel grinding mechanism includes a cavity, the cavity fixes the motor cavity, the central axis of the grinding wheel is rotatably connected in the cavity, one side of the cavity is open, and the lower end of the one side opening of the cavity is fixedly connected to the support seat;

[0006] The sanding belt grinding mechanism includes a sanding belt box, one end of the interior of the sanding belt box is rotatably connected to the first wheel, and the other end of the interior of the belt box is rotatably connected to the second wheel, the first wheel and the second wheel are connected by a sanding belt, a sanding belt support plate is provided between the sanding belts, the sanding belt support plate fixes the sanding belt box, an opening is provided on the upper side of the sanding belt box, a second support seat is provided at the lower end of the opening, and the second support seat fixes the sanding belt box.

[0007] As a further limitation of the present technical solution, motors are fixed at both ends of the motor cavity, the output shaft of one motor is fixed to the central axis of the grinding wheel, and the output shaft of the other motor is fixed to the central axis of the second rotating wheel.

[0008] As a further limitation of the present technical solution, the two ends of the lower part of one side of the base are respectively fixedly connected to one end of the extending arm, the other end of each extending arm is respectively fixedly connected to the shaft support plate, the upper end of each shaft support plate is respectively provided with a support slot, the upper part of one side of each shaft support plate is respectively threadedly connected to a bolt, and the end of each bolt is respectively fixedly connected to the top block.

[0009] As a further limitation of the present technical solution, the top block is a rubber block.

[0010] As a further definition of the present technical solution, one side of the sanding belt box is fixedly connected to a fixed block, and bolt 2 passes through one side of the L-shaped rod, the spring and the fixed block and is threadedly connected to a nut, one end of the spring fixes the fixed block, and the other end of the spring fixes one side of the L-shaped rod, and the other side of the L-shaped rod passes through a square opening, and the square opening is opened on one side of the sanding belt box, and the other end of the L-shaped rod is passed through the center axis of the rotating wheel one.

[0011] As a further limitation of the present technical solution, the L-shaped rod is connected to the sanding belt box via screws.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] (1) By integrating the grinding wheel grinding and the sanding belt grinding mechanisms, the grinding method can be flexibly selected according to the processing requirements of the workpiece; by using the supporting slot and the top block in combination, the circular shaft workpiece can be accurately supported and positioned, ensuring the stability and processing accuracy during the processing; (2) By setting up a vibration compensation system composed of components such as springs, fixed blocks, and L-shaped rods, the vibration during the grinding process is effectively reduced, the service life of the grinding wheel, the rotating wheel, and the sanding belt is extended, and the processing quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of this application and constitute a part of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation on this application. Obviously, the drawings described below are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the drawings:

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0017] Figure 3This is a schematic diagram of the three-dimensional structure of the utility model Figure 3 ;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model Figure 4 .

[0019] In the figure: 1. Motor cavity; 2. Sanding belt; 3. Sanding belt box; 4. Second support seat; 5. Bolt; 6. Rotating shaft support plate; 7. Top block; 8. Support slot; 9. Base; 11. Extending arm; 12. Support seat; 13. Cavity; 14. Grinding wheel; 15. Baffle; 16. Inclined rod; 17. Rotary wheel 1; 18. Sanding belt support plate; 19. Rotary wheel 2; 20. L-shaped rod; 21. Square mouth; 22. Spring; 23. Fixing block; 24. Bolt 2; 25. Screw. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-4 The utility model is further described with reference to the accompanying drawings and implementation methods.

[0021] A CNC cylindrical grinding machine for processing a rotating shaft comprises a base 9, characterized in that the upper side of the base 9 is fixedly connected to a motor cavity 1, one end of the motor cavity 1 is provided with a grinding wheel grinding mechanism, and the other end of the motor cavity 1 is provided with a sanding belt grinding mechanism;

[0022] The grinding wheel grinding mechanism includes a cavity 13, the cavity 13 fixes the motor cavity 1, the center axis of the grinding wheel 14 is rotatably connected in the cavity 13, one side of the cavity 13 is open, and the lower end of the one side opening of the cavity 13 is fixedly connected to the support seat 12;

[0023] The sanding belt grinding mechanism includes a sanding belt box 3, one end of the interior of the sanding belt box 3 is rotatably connected to the runner 17, and the other end of the interior of the belt box 3 is rotatably connected to the runner 19, the runner 17 and the runner 2 19 are connected through the sanding belt 2, and a sanding belt support plate 18 is provided between the sanding belts 2, and the sanding belt support plate 18 fixes the sanding belt box 3, and an opening is provided on the upper side of the sanding belt box 3, and a second support seat 4 is provided at the lower end of the opening, and the second support seat 4 fixes the sanding belt box 3.

[0024] Motors are fixed at both ends of the motor cavity 1. The output shaft of one motor is fixed to the central axis of the grinding wheel 14, and the output shaft of the other motor is fixed to the central axis of the rotating wheel 2 19.

[0025] An inclined rod 16 is fixed to the upper end of the opening on one side of the cavity 13, and the upper end of the inclined rod 16 is rotatably connected to the baffle 15. There is a pre-tightening force between the baffle 15 and the inclined rod 16, and the pre-tightening force is greater than the gravity of the baffle 15, preventing the baffle 15 from swinging downward under the action of gravity. The operator can manually pull the baffle 15 to change its angle, and the baffle 15 plays a role in blocking flying chips during the grinding process.

[0026] In this embodiment, the motor in the motor chamber 1 can respectively drive the grinding wheel 14 and the rotating wheel 2 19 to rotate. When the grinding wheel 14 is used for grinding, the workpiece to be ground is placed on the support seat 12, the position to be ground is aligned with the grinding wheel 14, and the corresponding motor is started. The grinding wheel 14 rotates to grind the workpiece;

[0027] When using the sanding belt 2 for grinding, place the workpiece on the second support seat 4, align the position to be ground with the sanding belt 2, start the corresponding motor to drive the second wheel 19 to rotate, and the second wheel 19 drives the first wheel 17 to rotate through the sanding belt 2, and the sanding belt 2 rotates to grind the workpiece.

[0028] The two ends of the lower part of one side of the base 9 are respectively fixedly connected to one end of the extension arm 11, and the other end of each extension arm 11 is respectively fixedly connected to the shaft support plate 6. The upper end of each shaft support plate 6 is respectively provided with a support slot 8, and the upper part of one side of each shaft support plate 6 is respectively threadedly connected to a bolt 5, and the end of each bolt 5 is respectively fixedly connected to the top block 7.

[0029] The top block 7 is a rubber block.

[0030] In this embodiment, the circular shaft workpiece is supported by the supporting slot 8, and the rotating bolt 5 drives the top block 7 to press against the surface of the circular shaft to limit its position.

[0031] One side of the sanding belt box 3 is fixedly connected to the fixing block 23, and the second bolt 24 passes through one side of the L-shaped rod 20, the spring 22 and the fixing block 23 and is threadedly connected to the nut. One end of the spring 22 fixes the fixing block 23, and the other end of the spring 22 fixes one side of the L-shaped rod 20. The other side of the L-shaped rod 20 passes through the square opening 21, and the square opening 21 is opened on one side of the sanding belt box 3. The other end of the L-shaped rod 20 is passed by the central axis of the wheel 17.

[0032] The L-shaped rod 20 is connected to the sanding belt box 3 via screws 25 .

[0033] In this embodiment, a spring 22, a fixing block 23, an L-shaped rod 20, a second bolt 24, and a nut are provided. The elastic force of the spring 22 is used to offset the vibration force generated during the rotation of the first wheel 17, the second wheel 19, and the sanding belt 2, thereby increasing the service life of the first wheel 17, the second wheel 19, and the sanding belt 2.

[0034] During use, select a suitable support seat (support seat 12 or second support seat 4) according to the size and shape of the workpiece to be polished, place the workpiece on the corresponding support seat, and ensure that the position of the workpiece to be polished is aligned with the polishing mechanism (grinding wheel 14 or sanding belt 2), turn the bolt 5 to make the top block 7 rest against the surface of the circular shaft workpiece, realize the limitation of the workpiece, and ensure the stability during the polishing process. According to the material of the workpiece and the required polishing accuracy, choose to use grinding wheel 14 or sanding belt 2 for polishing. If grinding wheel 14 is selected for polishing, start the motor connected to the center axis of grinding wheel 14 to make grinding wheel 14 start to rotate; if sanding belt 2 is selected for polishing, start the motor connected to the center axis of runner 2 19 to drive runner 2 19 and runner 1 17 to rotate, so that sanding belt 2 starts to rotate. During the polishing process, the vibration offset system composed of spring 22, fixed block 23, L-shaped rod 20 and bolt 2 24 is used to reduce vibration during the polishing process and protect the surface quality of the workpiece.

[0035] The above disclosure is only a specific embodiment of the present invention, but the present invention is not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A CNC cylindrical grinding machine for machining a rotating shaft, comprising a base (9), characterized in that: The upper side of the base (9) is fixedly connected to the motor cavity (1), one end of the motor cavity (1) is provided with a grinding wheel grinding mechanism, and the other end of the motor cavity (1) is provided with a sand belt grinding mechanism; The grinding wheel grinding mechanism comprises a cavity (13), the cavity (13) fixes the motor cavity (1), a central axis of the grinding wheel (14) is rotatably connected in the cavity (13), one side of the cavity (13) is open, and the lower end of the one side opening of the cavity (13) is fixedly connected to the support seat (12); The sanding belt grinding mechanism comprises a sanding belt box (3), one end of the interior of the sanding belt box (3) is rotatably connected to a first rotating wheel (17), and the other end of the interior of the sanding belt box (3) is rotatably connected to a second rotating wheel (19), the first rotating wheel (17) and the second rotating wheel (19) are connected via a sanding belt (2), a sanding belt support plate (18) is provided between the sanding belts (2), the sanding belt support plate (18) fixes the sanding belt box (3), an opening is provided on the upper side of the sanding belt box (3), a second support seat (4) is provided at the lower end of the opening, and the second support seat (4) fixes the sanding belt box (3).

2. A CNC cylindrical grinding machine for rotating shaft processing according to claim 1, characterized in that: Motors are fixed at both ends of the motor cavity (1), the output shaft of one motor is fixed to the central axis of the grinding wheel (14), and the output shaft of the other motor is fixed to the central axis of the second rotating wheel (19).

3. The CNC cylindrical grinding machine for rotating shaft processing according to claim 2, characterized in that: The two ends of the lower part of one side of the base (9) are respectively fixedly connected to one end of the extension arm (11), and the other end of each extension arm (11) is respectively fixedly connected to the shaft support plate (6). The upper end of each shaft support plate (6) is respectively provided with a support slot (8). The upper part of one side of each shaft support plate (6) is respectively threadedly connected to a bolt (5), and the end of each bolt (5) is respectively fixedly connected to the top block (7).

4. The CNC cylindrical grinding machine for rotating shaft processing according to claim 3, characterized in that: The top block (7) is a rubber block.

5. The CNC cylindrical grinding machine for rotating shaft processing according to claim 4, characterized in that: One side of the sanding belt box (3) is fixedly connected to a fixing block (23), and a second bolt (24) passes through one side of the L-shaped rod (20), a spring (22) and the fixing block (23) and is then threadedly connected to a nut. One end of the spring (22) fixes the fixing block (23), and the other end of the spring (22) fixes one side of the L-shaped rod (20). The other side of the L-shaped rod (20) passes through a square opening (21). The square opening (21) is opened on one side of the sanding belt box (3), and the other end of the L-shaped rod (20) is passed through by the central axis of the rotating wheel (17).

6. The CNC cylindrical grinding machine for rotating shaft processing according to claim 5, characterized in that: The L-shaped rod (20) is connected to the sanding belt box (3) via a screw (25).

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