Numerical control grinding machine with dynamic balance calibration function

Abstract

The invention discloses a numerical control grinding machine with a dynamic balance calibration function. The numerical control grinding machine comprises an equipment body, a grinding assembly, a connecting shaft, a push rod, a first spring, a conical barrel and a self-locking assembly. A conical barrel in the grinding assembly can move according to the size of a gap between a rotating shaft and a grinding wheel, after the gap is enlarged, the conical barrel can be driven by a first spring to move forwards, after the gap is filled, the conical barrel can be clamped on a rotating column by the first spring and the grinding wheel, and then the grinding wheel is clamped by the first spring and the grinding wheel in cooperation with a self-locking assembly; the conical barrel is limited, the conical barrel can be prevented from sliding back and forth on the rotating shaft under the condition of high vibration, and under the mutual cooperation of the self-locking assembly and the conical barrel, the situation that after equipment is used for a long time, a gap is formed between the grinding wheel and the rotating shaft, and consequently the grinding wheel shakes in the working process can be prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding machines, and specifically discloses a numerically controlled grinding machine with a dynamic balance calibration function. Background Art

[0002] The numerically controlled grinding machine precisely controls the movement trajectory of the grinding head through a numerical control system, can achieve high-precision machining work, ensure the precision and quality of products, has a high degree of automation, reduces manual intervention, improves production efficiency and machining precision, and with automated production, reduces the labor demand, reduces the labor cost, and at the same time reduces the errors caused by manual operation.

[0003] Although the traditional numerically controlled grinding machine reduces the labor cost and improves the production efficiency, most of the internal grinding wheels and rotating shafts are connected by threads. After long-term use, the threads on the rotating shaft will wear, which leads to an increasing gap between the grinding wheel and the rotating shaft. When grinding a workpiece, the grinding wheel will shake, resulting in an uneven surface of the workpiece being ground. Summary of the Invention

[0004] In order to solve the problems in the background art, the present invention provides a numerically controlled grinding machine with a dynamic balance calibration function that can fill the gap between the rotating shaft and the grinding wheel when the threads on the rotating shaft are worn.

[0005] Aiming at the problems in the prior art, the present invention provides a numerically controlled grinding machine with a dynamic balance calibration function, including a device main body. The grinding assembly is fixedly installed on the device main body. The inside of the grinding assembly includes a fixed box, a motor, a connecting shaft, a rotating shaft, a push rod, a first spring, a conical cylinder, a protective shell, and a grinding wheel. One end of the connecting shaft is fixedly connected to the output shaft of the motor. A plurality of groups of holes are opened inside the connecting shaft. The push rod is slidably connected to the holes opened inside the connecting shaft. One end of the first spring is fixedly connected to the side wall of the hole opened inside the connecting shaft, and the other end of the first spring is fixedly connected to one end of the push rod. The conical cylinder is slidably connected to the rotating shaft. One end of the conical cylinder is fixedly connected to the other end of the push rod. The self-locking assembly is fixedly installed inside the conical cylinder. The inside of the self-locking assembly includes a connecting plate, a limiting column, a limiting plate, a second spring, a connecting block, a mounting block, a rotating column, and a limiting groove.

[0006] Specifically, the fixed box is fixedly installed on the equipment main body. One side of the fixed box is fixedly connected with a group of motors. Inside the fixed box, a group of connecting shafts are rotatably connected. One end of the connecting shaft is fixedly connected with one end of a rotating shaft. A group of grinding wheels are threadedly connected to the other end of the rotating shaft. The other end of the rotating shaft is rotatably connected to a convex block installed on the inner wall of the protective shell. One side of the outer part of the rotating shaft is fixedly connected to the side wall of the fixed box. The protective shell covers the grinding wheels inside it.

[0007] Specifically, one side of the connecting plate is fixedly connected to the inner wall of the conical cylinder. Two installation blocks are fixedly installed on the connecting plate. A group of rotating columns are fixedly connected between the two installation blocks. A group of limiting plates are rotatably connected to the rotating columns. The front end of the limiting plate is arc-shaped. The material of the limiting plate is rubber.

[0008] Specifically, two connecting blocks are fixedly connected to the lower end of the limiting plate. One end of a second spring is fixedly connected to the lower end of the connecting block. The other end of the second spring is fixedly connected to the upper surface of the connecting plate. Two limiting columns are also fixedly connected to the upper surface of the connecting plate. The limiting columns are in contact with the lower end of the limiting plate but not connected. There is a gap between the limiting plate and the limiting groove. Multiple groups of limiting grooves are opened on the outer wall of the rotating shaft.

[0009] Specifically, a group of moving components are fixedly installed on the equipment main body. The moving components are located on one side of the fixed box. The inside of the moving components includes a first electric push rod, a support plate, a conveyor belt, a fixed block, a second electric push rod, and a pressing plate. The bases of multiple groups of first electric push rods are fixedly connected to the upper surface of the equipment main body. The output end of the first electric push rod is fixedly connected to the lower end of the support plate.

[0010] Specifically, a conveyor belt is installed on the support plate. Two fixed blocks are fixedly installed on the conveyor belt. Two second electric push rods are fixedly installed on one side of the fixed block. The output shaft of the second electric push rod is fixedly connected to one side of the pressing plate. There is a gap between the lower end of the pressing plate and the conveyor belt.

[0011] Specifically, two outer shells are fixedly installed on the upper end of the equipment main body. A control panel is fixedly installed on one side of one of the outer shells. The control panel is electrically connected to all the energized parts inside the equipment main body. Multiple groups of support feet are fixedly connected to the lower end of the equipment main body.

[0012] Advantages of the present invention: 1) In the present invention, the conical cylinder is conical. When there is a gap between the rotating shaft and the grinding wheel, the conical cylinder will fill the gap under the push of the first spring, effectively preventing the grinding wheel from shaking during grinding.

[0013] 2) After the conical cylinder moves forward in the present invention, the self-locking component will limit it to prevent it from sliding back and forth when the grinding wheel grinds the workpiece.

[0014] 3) In the present invention, the moving component can automatically adjust the position of the workpiece, thus realizing automatic grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the drawings and embodiments.

[0016] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the connection structure of the internal parts of the grinding component in the present invention; Figure 3 In the present invention Figure 2 side cross-sectional view; Figure 4 is a distribution diagram of the internal parts of the self-locking component in the present invention; Figure 5 is a schematic diagram of the connection structure of the internal parts of the self-locking component in the present invention; Figure 6 is Figure 1 enlarged view at A in; Figure 7 is Figure 3 enlarged view at B in; Figure 8 is Figure 4 enlarged view at C in; In the figure: 1, equipment main body; 11, support feet; 12, outer shell; 13, control panel; 2, moving component; 21, first electric push rod; 22, support plate; 23, conveyor belt; 24, fixed block; 25, second electric push rod; 26, pressing plate; 3, grinding component; 31, fixed box; 32, motor; 33, connecting shaft; 34, rotating shaft; 35, push rod; 36, first spring; 37, conical cylinder; 38, protective shell; 39, grinding wheel; 4, self-locking component; 41, connecting plate; 42, limiting column; 43, limiting plate; 44, second spring; 45, connecting block; 46, mounting block; 47, rotating column; 48, limiting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the technical methods, creative features, achieved purposes and effects realized by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0018] Embodiment, as Figures 1 to 8As shown in the figure, in view of the problems in the prior art, the present invention provides a numerically controlled grinding machine with a dynamic balance calibration function, including a device main body 1. A grinding assembly 3 is fixedly installed on the device main body 1. The inside of the grinding assembly 3 includes a fixed box 31, a motor 32, a connecting shaft 33, a rotating shaft 34, a push rod 35, a first spring 36, a conical cylinder 37, a protective shell 38, and a grinding wheel 39. One end of the connecting shaft 33 is fixedly connected to the output shaft of the motor 32. Multiple groups of holes are provided inside the connecting shaft 33. The push rod 35 is slidably connected to the holes provided inside the connecting shaft 33. One end of the first spring 36 is fixedly connected to the side wall of the hole provided inside the connecting shaft 33, and the other end of the first spring 36 is fixedly connected to one end of the push rod 35. The conical cylinder 37 is slidably connected to the rotating shaft 34. One end of the conical cylinder 37 is fixedly connected to the other end of the push rod 35. A self-locking assembly 4 is fixedly installed inside the conical cylinder 37. The inside of the self-locking assembly 4 includes a connecting plate 41, a limiting post 42, a limiting plate 43, a second spring 44, a connecting block 45, a mounting block 46, a rotating column 47, and a limiting groove 48.

[0019] Specifically, the fixed box 31 is fixedly installed on the device main body 1. One side of the fixed box 31 is fixedly connected with a group of motors 32. A group of connecting shafts 33 are rotatably connected inside the fixed box 31. One end of the connecting shaft 33 is fixedly connected to one end of the rotating shaft 34. A group of grinding wheels 39 are threadedly connected to the other end of the rotating shaft 34. The other end of the rotating shaft 34 is rotatably connected to a convex block installed on the inner wall of the protective shell 38. One side of the outside of the rotating shaft 34 is fixedly connected to the side wall of the fixed box 31. The protective shell 38 covers the grinding wheel 39 inside it.

[0020] One side of the connecting plate 41 is fixedly connected to the inner wall of the conical cylinder 37. Two groups of mounting blocks 46 are fixedly installed on the connecting plate 41. A group of rotating columns 47 are fixedly connected between the two groups of mounting blocks 46. A group of limiting plates 43 are rotatably connected to the rotating columns 47. The front end of the limiting plate 43 is arc-shaped. The material of the limiting plate 43 is rubber. Two groups of connecting blocks 45 are fixedly connected to the lower end of the limiting plate 43. One end of the second spring 44 is fixedly connected to the lower end of the connecting block 45, and the other end of the second spring 44 is fixedly connected to the upper surface of the connecting plate 41. Two groups of limiting posts 42 are also fixedly connected to the upper surface of the connecting plate 41. The limiting posts 42 are in contact with the lower end of the limiting plate 43 but not connected. There is a gap between the limiting plate 43 and the limiting groove 48. Multiple groups of limiting grooves 48 are provided on the outer wall of the rotating shaft 34.

[0021] Specifically, a group of moving components 2 are fixedly installed on the equipment body 1, and the moving component 2 is located on one side of the fixed box 31. The interior of the moving component 2 includes a first electric push rod 21, a support plate 22, a conveyor belt 23, a fixed block 24, a second electric push rod 25 and a clamping plate 26. The bases of multiple groups of first electric push rods 21 are fixedly connected to the upper surface of the equipment body 1, and the output ends of the first electric push rods 21 are fixedly connected to the lower end of the support plate 22. A group of conveyor belts 23 are installed on the support plate 22, and two groups of fixed blocks 24 are fixedly installed on the conveyor belt 23. Two groups of second electric push rods 25 are fixedly installed on one side of the fixed block 24, and the output shaft of the second electric push rod 25 is fixedly connected to one side of the clamping plate 26. There is a gap between the lower end of the clamping plate 26 and the conveyor belt 23.

[0022] Specifically, two sets of outer shells 12 are fixedly installed on the upper end of the device body 1, and a set of control panels 13 are fixedly installed on one side of one set of outer shells 12. The control panel 13 is electrically connected to all powered parts inside the device body 1, and multiple sets of supporting feet 11 are fixedly connected to the lower end of the device body 1.

[0023] (1) In the present invention, after moving to the distance set in advance, the drive motor reverses to drive the workpiece back to its original position. The distance moved by the conveyor belt 23 is the length of the workpiece. After the equipment has been used for a long time, the thread on the rotating shaft 34 connected to the grinding wheel 39 will be worn, resulting in a gap between the rotating shaft 34 and the grinding wheel 39. At this time, the first spring 36 will drive the push rod 35 to move forward inside the connecting shaft 33, and the push rod 35 will push the conical cylinder 37 to slide forward on the rotating shaft 34. The front end of the conical cylinder 37 will gradually enter the gap between the rotating shaft 34 and the grinding wheel 39, thereby filling it up, preventing the grinding wheel 39 from shaking during the grinding work, resulting in uneven grinding of the workpiece surface.

[0024] (2) The conical cylinder 37 will drive the self-locking assembly 4 to move as a whole during the movement. The limiting plate 43 will enter the next set of limiting grooves 48 driven by the conical cylinder 37, thereby limiting the conical cylinder 37. The limiting plate 43 is rotatably connected to the rotating column 47, and its bottom is supported by the limiting column 42. Therefore, the limiting plate 43 can only rotate upward under the drive of the conical cylinder 37, thereby realizing the movement with the conical cylinder 37 and causing real-time limiting to it, preventing the grinding wheel 39 from During the grinding process, the conical cylinder 37 slides back and forth on the rotating shaft 34 due to vibration. When the conical cylinder 37 is not moving, the limit plate 43 will be located in a group of limit grooves 48. When the conical cylinder 37 moves, the conical cylinder 37 will be driven by it and reverse on the rotating column 47, thereby stretching the second spring 44. When the limit plate 43 enters the next group of limit grooves 48, the second spring 44 will no longer be under force, thereby pulling the limit plate 43 back to its original position and limiting the conical cylinder 37 again.

[0025] (3) Place the workpiece to be polished between the two sets of clamping plates 26, and then start the second electric push rod 25. At this time, the second electric push rod 25 will drive the clamping plate 26 to move forward, thereby pressing against the side wall of the workpiece, and then start the first electric push rod 21, which will drive the support plate 22 to move upward. When the surface of the workpiece reaches the polishing position, the first electric push rod 21 stops starting and the motor 32 is started. It will drive the connecting shaft 33 to rotate, and the rotating shaft 34 will drive the rotating shaft 34 to rotate, thereby driving the grinding wheel 39 to rotate, and the surface of the workpiece is polished. During the polishing process, the conveyor belt 23 is started, and the drive motor inside it first rotates forward, driving the conveyor belt 23 to move, thereby changing the position of the workpiece. After moving to the distance set in advance, the drive motor reverses, thereby driving the workpiece back to its original position. The distance the conveyor belt 23 moves is the length of the workpiece.

[0026] Working principle: first, place the workpiece to be polished between the two sets of clamping plates 26, and then start the second electric push rod 25. At this time, the second electric push rod 25 will drive the clamping plate 26 to move forward, thereby clamping the side wall of the workpiece, and then start the first electric push rod 21, which will drive the support plate 22 to move upward. When the surface of the workpiece reaches the polishing position, the first electric push rod 21 stops starting and starts the motor 32, which will drive the connecting shaft 33 to rotate, and the rotating shaft 34 will drive the rotating shaft 34 to rotate, thereby driving the grinding wheel 39 to rotate, and the surface of the workpiece is polished. In the polishing process, the conveyor belt 23 is started, and the driving motor inside it first rotates forward to drive the conveyor belt 23 to move, thereby changing the position of the workpiece. After moving to the distance set in advance, the driving motor reverses to drive the workpiece back to its original position. The distance moved by the conveyor belt 23 is the length of the workpiece. After the equipment has been used for a long time, the thread on the rotating shaft 34 connected to the grinding wheel 39 will be worn, which will cause the rotation A gap appears between the rotating shaft 34 and the grinding wheel 39. At this time, the first spring 36 drives the push rod 35 to move forward inside the connecting shaft 33, and the push rod 35 drives the conical cylinder 37 to slide forward on the rotating shaft 34. The front end of the conical cylinder 37 gradually enters the gap between the rotating shaft 34 and the grinding wheel 39, thereby filling it up, preventing the grinding wheel 39 from shaking during the grinding work, resulting in uneven grinding of the workpiece surface, and the conical cylinder 37 drives the self-locking The component 4 moves as a whole, and the limit plate 43 will enter the next set of limit grooves 48 driven by the conical cylinder 37, thereby limiting the conical cylinder 37. The limit plate 43 is rotatably connected to the rotating column 47, and its bottom is supported by the limit column 42, so the limit plate 43 can only rotate upward under the drive of the conical cylinder 37, thereby realizing movement with the conical cylinder 37 and causing real-time limitation to it, preventing the conical cylinder 37 from sliding back and forth on the rotating shaft 34 due to vibration during the grinding process of the grinding wheel 39.

[0027] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed.

Claims

1. A CNC grinding machine with dynamic balancing calibration function, characterized in that: The device comprises a main body (1); A grinding assembly (3), the grinding assembly (3) being fixedly mounted on the device body (1), the interior of the grinding assembly (3) comprising a fixed box (31), a motor (32), a connecting shaft (33), a rotating shaft (34), a push rod (35), a first spring (36), a conical cylinder (37), a protective shell (38) and a grinding wheel (39); A connecting shaft (33), one end of the connecting shaft (33) being fixedly connected to the output shaft of the motor (32), and a plurality of groups of holes being formed inside the connecting shaft (33); A push rod (35), wherein the push rod (35) is slidably connected in a hole opened inside the connecting shaft (33); A first spring (36), one end of the first spring (36) being fixedly connected to a side wall of a hole provided inside the connecting shaft (33), and the other end of the first spring (36) being fixedly connected to one end of a push rod (35); A conical cylinder (37), wherein the conical cylinder (37) is slidably connected to the rotating shaft (34), and one end of the conical cylinder (37) is fixedly connected to the other end of the push rod (35); A self-locking component (4), the self-locking component (4) being fixedly mounted inside the conical cylinder (37), the self-locking component (4) comprising a connecting plate (41), a limiting column (42), a limiting plate (43), a second spring (44), a connecting block (45), a mounting block (46), a rotating column (47) and a limiting groove (48).

2. The CNC grinding machine according to claim 1, characterized in that: The fixed box (31) is fixedly mounted on the device body (1); a group of motors (32) are fixedly connected to one side of the fixed box (31); a group of connecting shafts (33) are rotatably connected inside the fixed box (31); one end of the connecting shaft (33) is fixedly connected to one end of a rotating shaft (34); and a group of grinding wheels (39) are threadedly connected to the other end of the rotating shaft (34).

3. The CNC grinding machine according to claim 2, characterized in that: The other end of the rotating shaft (34) is rotatably connected to a protrusion mounted on the inner wall of the protective shell (38), and the outer side of the rotating shaft (34) is fixedly connected to the side wall of the fixed box (31). The protective shell (38) covers the grinding wheel (39) inside.

4. The CNC grinding machine according to claim 1, characterized in that: One side of the connecting plate (41) is fixedly connected to the inner wall of the conical cylinder (37); two groups of mounting blocks (46) are fixedly mounted on the connecting plate (41); a group of rotating columns (47) are fixedly connected between the two groups of mounting blocks (46); a group of limiting plates (43) are rotatably connected to the rotating columns (47); the front end of the limiting plates (43) is in an arc shape; the limiting plates (43) are made of rubber.

5. The CNC grinding machine according to claim 1, characterized in that: The lower end of the limit plate (43) is fixedly connected to two groups of connection blocks (45), the lower end of the connection block (45) is fixedly connected to one end of a second spring (44), the other end of the second spring (44) is fixedly connected to the upper surface of the connection plate (41), and the upper surface of the connection plate (41) is also fixedly connected to two groups of limit columns (42), the limit columns (42) and the lower end of the limit plate (43) are in contact with each other but are not connected, there is a gap between the limit plate (43) and the limit groove (48), and a plurality of groups of the limit grooves (48) are provided on the outer wall of the rotating shaft (34).

6. The CNC grinding machine according to claim 1, characterized in that: A group of moving components (2) is fixedly mounted on the device body (1), and the moving components (2) are located on one side of the fixed box (31). The interior of the moving components (2) includes a first electric push rod (21), a support plate (22), a conveyor belt (23), a fixed block (24), a second electric push rod (25), and a clamping plate (26). The bases of multiple groups of the first electric push rods (21) are fixedly connected to the upper surface of the device body (1), and the output end of the first electric push rod (21) is fixedly connected to the lower end of the support plate (22).

7. The CNC grinding machine according to claim 6, characterized in that: A group of conveyor belts (23) are mounted on the support plate (22), two groups of fixed blocks (24) are fixedly mounted on the conveyor belt (23), two groups of second electric push rods (25) are fixedly mounted on one side of the fixed blocks (24), the output shafts of the second electric push rods (25) are fixedly connected to one side of a clamping plate (26), and a gap exists between the lower end of the clamping plate (26) and the conveyor belt (23).

8. The CNC grinding machine according to claim 1, characterized in that: Two sets of outer shells (12) are fixedly mounted on the upper end of the device body (1), one side of one set of the outer shells (12) having a set of control panels (13) fixedly mounted thereon, the control panel (13) being electrically connected to all energized parts inside the device body (1), and a plurality of sets of supporting legs (11) being fixedly connected to the lower end of the device body (1).

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