A precise and efficient numerical control grinding machine

Abstract

The present application relates to the technical field of polishing, and particularly relates to a precise and efficient numerical control grinding machine, which comprises a frame, a first electric guide rail, a first moving plate, a second electric guide rail and a second moving plate, etc., the frame top is provided with the first electric guide rail, the slider of the first electric guide rail is connected with the first moving plate, the first moving plate top is provided with the second electric guide rail, and the slider of the second electric guide rail is connected with the second moving plate. The output shaft of the second motor can drive the grinding wheel to rotate, the grinding wheel can polish the outer surface of the cylindrical workpiece, the third electric guide rail can drive the push block to move left, the spare grinding wheel on the second key shaft is pushed to the first key shaft, the worn grinding wheel can be automatically replaced, the working efficiency can be improved, the wear state of the grinding wheel can be monitored in real time, the worn grinding wheel can be replaced in time, and the machining precision is ensured.

Description

Technical Field

[0001] This invention relates to the field of grinding technology, and in particular to a precision and high-efficiency CNC grinding machine. Background Technology

[0002] Cylindrical workpieces refer to industrial parts whose main body is cylindrical. They are one of the most common and basic forms of mechanical parts. Grinding the outer surface of cylindrical workpieces is a very important finishing process. Grinding can make the outer surface of cylindrical workpieces smoother, reduce friction and wear, and improve mechanical efficiency and service life.

[0003] In the machining of cylindrical workpieces, the outer surface of the workpiece is mainly polished by a grinding machine. The grinding wheel is the core component of the grinding machine. During long-term use, it will wear due to the cutting force and thermal effect of the grinding material. This wear will cause changes in the surface shape of the grinding wheel, affecting the grinding accuracy. When the grinding wheel wears to a certain extent, it will lead to a decrease in the machining quality of the cylindrical workpiece, specifically manifested as increased surface roughness and increased dimensional accuracy deviation. Currently, the main method is to manually check the wear of the grinding wheel periodically and then manually replace the worn grinding wheel. The replacement process involves disassembly and installation, which is cumbersome and affects work efficiency. Moreover, it is impossible to monitor the wear status of the grinding wheel in real time, making it difficult to replace the worn grinding wheel in a timely manner. Summary of the Invention

[0004] In view of this, the present invention provides a precision and high-efficiency CNC grinding machine that can overcome the disadvantages of the replacement process, which includes disassembly and installation, is relatively cumbersome, affects work efficiency, and cannot monitor the wear status of the grinding wheel in real time, making it difficult to replace the worn grinding wheel in a timely manner.

[0005] Technical Solution: A precision and high-efficiency CNC grinding machine includes a frame, a first electric guide rail, a first moving plate, a second electric guide rail, a second moving plate, a fixed plate, a mounting frame, a first motor, a rotating plate, a first key shaft, a second motor, grinding wheels, a changing mechanism, and a clamping mechanism. The first electric guide rail is mounted on the top of the frame. The first moving plate is connected to the slider of the first electric guide rail. The second electric guide rail is mounted on the top of the first moving plate. The second moving plate is connected to the slider of the second electric guide rail. The fixed plate is connected to the top of the second moving plate. The mounting frame is connected to the mounting frame. The first motor is mounted on the top of the mounting frame. The rotating plate is rotatably connected to the mounting frame. The output shaft of the first motor is connected to the rotating plate. The first key shaft is rotatably connected to both the front and rear sides of the rotating plate. The second motors are mounted on both the front and rear sides of the rotating plate. The output shafts of the second motors are connected to the first key shafts. Grinding wheels are slidably connected to both first key shafts. The changing mechanism is used to replace worn grinding wheels. The clamping mechanism is used to clamp cylindrical workpieces.

[0006] As a preferred embodiment of the present invention, the replacement mechanism includes a first guide rod, a sliding plate, a second key shaft, a rubber block, a first cylinder, a third electric guide rail, a second cylinder, a push block, a monitoring component, and a limiting component. The first guide rods are connected to both the front and rear sides of the top of the second moving plate. The first guide rods are connected to a fixed plate. A sliding plate is slidably connected to both first guide rods. A second key shaft for storing a spare grinding wheel is connected to the sliding plate. A rubber block for limiting the spare grinding wheel is connected to the second key shaft. A first cylinder is installed on the top of the second moving plate. The telescopic rod of the first cylinder is connected to the sliding plate. A third electric guide rail is installed on the top of the second moving plate. A second cylinder is installed on the top of the slider of the third electric guide rail. A push block for pushing the spare grinding wheel on the second key shaft to the first key shaft is connected to the telescopic rod of the second cylinder. The monitoring component is used to monitor the wear degree of the grinding wheel on the first key shaft in real time. The limiting component is used to limit the grinding wheel on the first key shaft.

[0007] As a preferred embodiment of the present invention, the monitoring component includes a vibration sensor and a controller. Vibration sensors are installed on both the front and rear sides of the rotating plate, and a controller is installed on the frame. The first electric guide rail, the second electric guide rail, the first motor, the second motor, the first cylinder, the third electric guide rail, the second cylinder, and the vibration sensors are all electrically connected to the controller.

[0008] As a preferred embodiment of the present invention, the limiting component includes a second guide rod, a limiting block, and a spring. Each of the first key shafts has an installation groove, and each of the installation grooves is connected to a second guide rod. The upper and lower parts of the second guide rods are slidably connected to limiting blocks for limiting the grinding wheel on the first key shaft. The limiting blocks slide through the first key shaft, and a spring connects the two limiting blocks.

[0009] As a preferred embodiment of the present invention, the clamping mechanism includes a fourth electric guide rail, a movable frame, an electric three-jaw chuck, a third motor, and a supporting assembly. The fourth electric guide rail is installed on both the left and right sides of the top of the frame. The top of the slider of the fourth electric guide rail is connected to the movable frame. An electric three-jaw chuck for clamping cylindrical workpieces is rotatably connected to the movable frame. A third motor is installed on the movable frame. The output shaft of the third motor and the electric three-jaw chuck are driven by gears. The fourth electric guide rail, the electric three-jaw chuck, and the third motor are all electrically connected to the controller. The supporting assembly is used to support the end of the cylindrical workpiece that is not clamped.

[0010] As a preferred embodiment of the present invention, the supporting assembly includes a third cylinder, a third moving plate, a push rod, and a guide block. The third cylinder is mounted on the moving frame and is electrically connected to the controller. The third moving plate is connected to the telescopic rod of the third cylinder. The push rod for supporting the unclamped end of the cylindrical workpiece is rotatably connected to the third moving plate. The push rod has a spline groove. The guide block is connected to the electric three-jaw chuck. The guide block is located in the spline groove and the guide block and the spline groove are in sliding fit.

[0011] As a preferred embodiment of the present invention, it further includes a disassembly mechanism, which includes a storage sleeve, a fourth cylinder, a fourth moving plate, and a push rod. The storage sleeve is connected to the sliding plate, and the fourth cylinder is mounted on the fixed plate. The fourth cylinder is electrically connected to the controller. The fourth moving plate is connected to the telescopic end of the fourth cylinder, and a push rod for pushing the worn grinding wheel on the first key shaft to the storage sleeve is connected to the fourth moving plate.

[0012] As a preferred embodiment of the present invention, it further includes a stabilizing mechanism, which includes a rotating rod and a locking block. The rotating rod is rotatably connected to the slide plate, and the locking block is connected to the rotating rod. The locking block can move between two limiting blocks to lock the two limiting blocks.

[0013] As a preferred embodiment of the present invention, it further includes an alignment mechanism, which includes a laser emitter, a first laser receiver, and a second laser receiver. The laser emitter is mounted on the first key shaft, the first laser receiver is mounted on the second key shaft, and the second laser receiver is mounted on the storage sleeve. Both the first laser receiver and the second laser receiver are electrically connected to the controller.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. This invention enables the output shaft of the second motor to drive the grinding wheel to rotate, which can grind the outer surface of a cylindrical workpiece. The third electric guide rail can drive the push block to move to the left, pushing the spare grinding wheel on the second key shaft to the first key shaft. This allows for automatic replacement of worn grinding wheels, thereby improving work efficiency. Furthermore, it enables real-time monitoring of the wear status of the grinding wheel, allowing for timely replacement of worn grinding wheels and ensuring machining accuracy.

[0016] 2. The electric three-jaw chuck can hold a cylindrical workpiece. The telescopic rod of the third cylinder can drive the push rod to move, so that the push rod holds the unclamped end of the cylindrical workpiece, improving the stability of the cylindrical workpiece and thus improving the machining accuracy of the cylindrical workpiece. The push rods on both sides can alternately hold the two ends of the cylindrical workpiece, eliminating the need for manual disassembly and repositioning of the cylindrical workpiece, thus improving work efficiency.

[0017] 3. The extension of the telescopic rod of the fourth cylinder can drive the push rod to move to the right. The push rod can push the worn grinding wheel on the first key shaft to the storage sleeve, automatically removing the worn grinding wheel, which can reduce manual intervention and reduce the labor intensity of the workers. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the second movable plate, fixed plate, mounting frame, first motor, and rotating plate of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the first key shaft, the second motor, and the grinding wheel of the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the replacement mechanism of the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the second key shaft and the rubber block of the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the third electric guide rail, the second cylinder, and the push block of the present invention.

[0024] Figure 7 This is a three-dimensional structural diagram of the vibration sensor of the present invention.

[0025] Figure 8 This is a three-dimensional structural diagram of the mounting groove and limiting block of the present invention.

[0026] Figure 9 This is a cross-sectional view of the first key shaft of the present invention.

[0027] Figure 10 This is a three-dimensional structural diagram of the clamping mechanism of the present invention.

[0028] Figure 11 This is a three-dimensional structural diagram of the spline groove and guide block of the present invention.

[0029] Figure 12 This is a three-dimensional structural diagram of the disassembly mechanism of the present invention.

[0030] Figure 13 This is a cross-sectional view of the storage sleeve of the present invention.

[0031] Figure 14 This is a three-dimensional structural diagram of the fourth cylinder, the fourth moving plate, and the push rod of the present invention.

[0032] Figure 15 This is a three-dimensional structural diagram of the stabilizing mechanism of the present invention.

[0033] Figure 16 This is a three-dimensional structural diagram of the laser emitter of the present invention.

[0034] Figure 17 This is a three-dimensional structural diagram of the first laser receiver of the present invention.

[0035] Figure 18 This is a three-dimensional structural diagram of the second laser receiver of the present invention.

[0036] The components in the diagram are labeled as follows: 1. Frame; 2. First electric guide rail; 3. First moving plate; 4. Second electric guide rail; 5. Second moving plate; 6. Fixed plate; 7. Mounting bracket; 8. First motor; 9. Rotating plate; 10. First key shaft; 11. Second motor; 12. Grinding wheel; 131. First guide rod; 132. Slide plate; 133. Second key shaft; 134. Rubber block; 135. First cylinder; 136. Third electric guide rail; 137. Second cylinder; 138. Push block; 139. Vibration sensor; 1310. Controller; 1311. Mounting slot. 1312. Second guide rod; 1313. Limiting block; 1314. Spring; 141. Fourth electric guide rail; 142. Moving frame; 143. Electric three-jaw chuck; 144. Third motor; 145. Third cylinder; 146. Third moving plate; 147. Push rod; 148. Spline groove; 149. Guide block; 151. Storage sleeve; 152. Fourth cylinder; 153. Fourth moving plate; 154. Push rod; 161. Rotating rod; 162. Locking block; 171. Laser emitter; 172. First laser receiver; 173. Second laser receiver. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0038] refer to Figures 1-11A precision and high-efficiency CNC grinding machine includes a frame 1, a first electric guide rail 2, a first moving plate 3, a second electric guide rail 4, a second moving plate 5, a fixed plate 6, a mounting bracket 7, a first motor 8, a rotating plate 9, a first key shaft 10, a second motor 11, a grinding wheel 12, a changing mechanism, and a clamping mechanism. The first electric guide rail 2 is bolted to both the left and right sides of the rear top of the frame 1. The sliders of the two first electric guide rails 2 are connected by bolts to the first moving plate 3. The front and rear sides of the top of the first moving plate 3 are bolted to the second electric guide rail 4. The tops of the sliders of the two second electric guide rails 4 are connected by bolts to the second moving plate 5. A fixing plate 6 is bolted to the top left of plate 5. A mounting bracket 7 is bolted to the upper right of the fixing plate 6. A first motor 8 is bolted to the top center of the mounting bracket 7. A rotating plate 9 is rotatably connected to the middle right of the mounting bracket 7. The output shaft of the first motor 8 is connected to the rotating plate 9. A first key shaft 10 is rotatably connected to both the front and rear sides of the right side of the rotating plate 9. A second motor 11 is bolted to both the front and rear sides of the left side of the rotating plate 9. The output shaft of the second motor 11 is connected to the left end of the first key shaft 10. Grinding wheels 12 are slidably connected to the first key shaft 10. A replacement mechanism is used to replace worn grinding wheels 12. A clamping mechanism is used to clamp cylindrical workpieces.

[0039] refer to Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The replacement mechanism includes a first guide rod 131, a slide plate 132, a second key shaft 133, a rubber block 134, a first cylinder 135, a third electric guide rail 136, a second cylinder 137, a push block 138, a monitoring component, and a limit component. The first guide rod 131 is bolted to both the front and rear sides of the top of the second moving plate 5. The left end of the first guide rod 131 is connected to the right side of the fixed plate 6. A slide plate 132 is slidably connected to both first guide rods 131. The second key shaft 133 is connected to the lower left side of the slide plate 132. Rubber blocks 134 are connected to both the front and rear sides of the left side of the second key shaft 133. 34. The top front and rear sides of the second moving plate 5 are bolted with first cylinders 135. The right end of the telescopic rod of the first cylinder 135 is connected to the left side of the slide plate 132. The top front and rear sides of the second moving plate 5 are bolted with third electric guide rails 136. The top of the slider of the third electric guide rail 136 is bolted with second cylinders 137. The upper end of the telescopic rod of the second cylinder 137 is connected with push blocks 138. The monitoring component is used to monitor the wear degree of the grinding wheel 12 on the first key shaft 10 in real time. The limiting component is used to limit the grinding wheel 12 on the first key shaft 10.

[0040] refer to Figure 1 and Figure 7The monitoring components include a vibration sensor 139 and a controller 1310. Vibration sensors 139 are bolted to both the front and rear sides of the left side of the rotating plate 9. The controller 1310 is bolted to the front right side of the frame 1. The first electric guide rail 2, the second electric guide rail 4, the first motor 8, the second motor 11, the first cylinder 135, the third electric guide rail 136, the second cylinder 137, and the vibration sensor 139 are all electrically connected to the controller 1310.

[0041] refer to Figure 8 and Figure 9 The limiting assembly includes a second guide rod 1312, a limiting block 1313, and a spring 1314. The right end of the first key shaft 10 has a mounting groove 1311, and the second guide rod 1312 is connected to the mounting groove 1311. The upper and lower parts of the second guide rod 1312 are slidably connected to the limiting block 1313. The two limiting blocks 1313 slide through the upper and lower sides of the first key shaft 10 respectively. The sides of the two limiting blocks 1313 that are far apart from each other are both inclined surfaces. The second guide rod 1312 is fitted with a spring 1314. The two ends of the spring 1314 are connected to the two limiting blocks 1313 respectively. The spring 1314 is fitted on the second guide rod 1312 to prevent the spring 1314 from bending.

[0042] refer to Figure 1 , Figure 10 and Figure 11 The clamping mechanism includes a fourth electric guide rail 141, a movable frame 142, an electric three-jaw chuck 143, a third motor 144, and a holding assembly. The fourth electric guide rail 141 is bolted to both the left and right sides of the top front of the frame 1. The top of the slider of the fourth electric guide rail 141 is bolted to the movable frame 142. The upper part of the movable frame 142 is rotatably connected to the electric three-jaw chuck 143. The third motor 144 is bolted to the side of the two movable frames 142 that are far apart from each other. The output shaft of the third motor 144 and the electric three-jaw chuck 143 are driven by gears. The fourth electric guide rail 141, the electric three-jaw chuck 143, and the third motor 144 are all electrically connected to the controller 1310. The holding assembly is used to hold the end of the cylindrical workpiece that is not clamped.

[0043] refer to Figure 10 and Figure 11The supporting assembly includes a third cylinder 145, a third moving plate 146, a push rod 147, and a guide block 149. The third cylinder 145 is bolted to the side of the two moving frames 142 that are far apart from each other. The third cylinder 145 is electrically connected to the controller 1310. The third moving plate 146 is connected to the telescopic rod of the third cylinder 145. The push rod 147 is rotatably connected to the side of the two third moving plates 146 that are close to each other. The push rod 147 has four spline grooves 148 evenly spaced on its outer circumference. The electric three-jaw chuck 143 has four guide blocks 149 evenly spaced on its inner circumference. The guide blocks 149 are located in the spline grooves 148 and slide in contact with the spline grooves 148.

[0044] Initially, the telescopic rod of the third cylinder 145 is extended, and the push rod 147 is not extended from the electric three-jaw chuck 143. The operator places the left end of the cylindrical workpiece into the left electric three-jaw chuck 143, which clamps the left end of the workpiece. Then, the telescopic rod of the right third cylinder 145 is shortened, causing the right push rod 147 to move to the left, extending it from the right electric three-jaw chuck 143. The right fourth electric guide rail 141 is then controlled to move the right moving frame 142 to the left, which in turn moves the right push rod 147 to the left, holding the right end of the cylindrical workpiece in place and improving its stability. This process improves the machining accuracy of cylindrical workpieces. The third motor 144 is activated, and its output shaft drives the electric three-jaw chuck 143 to rotate via gears. The electric three-jaw chuck 143 rotates the cylindrical workpiece. Then, the second motor 11 on the front side is activated, driving the front grinding wheel 12 to rotate. The first electric guide rail 2 drives the first moving plate 3 forward, which in turn moves the grinding wheel 12 forward, bringing it into contact with the cylindrical workpiece and grinding its outer surface. The second electric guide rail 4 drives the second moving plate 5 left and right, which in turn moves the grinding wheel 12 left and right, allowing it to grind other parts of the cylindrical workpiece. After grinding, the cylindrical workpiece is finished. The first electric guide rail 2 is controlled to move the grinding wheel 12 backward, causing the grinding wheel 12 on the front side to disengage from the cylindrical workpiece. The clamping position of the cylindrical workpiece is not ground. The extension rod of the third cylinder 145 on the right side can be extended, causing the right push rod 147 to move to the right, retracting it into the right electric three-jaw chuck 143. Then, the fourth electric guide rail 141 on the right side is controlled to move the right electric three-jaw chuck 143 to the left, bringing it closer to the right end of the cylindrical workpiece and clamping it. At this time, the left electric three-jaw chuck 143 releases the left end of the cylindrical workpiece. Then, the fourth electric guide rail 141 on the left side is controlled to move the left moving frame 142 to the left. The moving frame 142 drives the left-side electric three-jaw chuck 143 to move to the left, moving it away from the cylindrical workpiece. Then, the telescopic rod of the left-side third cylinder 145 is shortened, causing the left-side push rod 147 to move to the right, extending it out of the left-side electric three-jaw chuck 143. Subsequently, the left-side fourth electric guide rail 141 is controlled to move the left-side push rod 147 to the right, holding the left end of the cylindrical workpiece in place. This allows for grinding of the clamped position of the cylindrical workpiece without manual disassembly, assembly, or repositioning, improving work efficiency. The second key shaft 133 can store a spare grinding wheel 12, and the rubber block 134 can limit the movement of the spare grinding wheel 12.To prevent the spare grinding wheel 12 from falling off the second key shaft 133, the rubber block 134 can deform, and with slight force, the spare grinding wheel 12 can be pushed onto the second key shaft 133. When the grinding wheel 12 is worn, it will vibrate. The vibration sensor 139 can monitor the vibration frequency of the grinding wheel 12 in real time. If the vibration frequency of the grinding wheel 12 is too high, it means that the grinding wheel 12 is over-worn. The vibration sensor 139 will send a signal to the controller 1310. After receiving the signal, the controller 1310 will control the second motor 11 to shut down and control the output shaft of the first motor 8 to rotate 90 degrees, driving the rotating plate 9 to rotate 90 degrees, thereby driving the grinding wheel 12 to rotate 90 degrees, thus removing the worn grinding wheel 12. Rotate the key shaft 10 (without the grinding wheel 12) above the mounting bracket 7 and rotate it below the mounting bracket 7 so that the first key shaft 10 (without the grinding wheel 12) and the second key shaft 133 are aligned. If the first key shaft 10 and the second key shaft 133 are not fully aligned, the second motor 11 can be started to drive the first key shaft 10 to rotate, so that the first key shaft 10 and the second key shaft 133 are fully aligned. In the initial state, the extension rod of the first cylinder 135 is in the extended state, and the first key shaft 10 and the second key shaft 133 are a certain distance apart. At this time, control the extension rod of the first cylinder 135 to shorten, drive the slide plate 132 to move to the left, and the slide plate 132 drives the second key shaft 133 to move to the left, so that the second key shaft 133 is aligned. The key shaft 133 approaches the first key shaft 10, and then the extension rod of the second cylinder 137 is extended, causing the push block 138 to move upward, moving the push block 138 between the two adjacent spare grinding wheels 12. Then, the third electric guide rail 136 is controlled to move the push block 138 to the left, pushing the leftmost spare grinding wheel 12 on the second key shaft 133 onto the first key shaft 10. The spare grinding wheel 12 will contact the inclined surface on the limiting block 1313 and push the limiting block 1313, causing the two limiting blocks 1313 to move closer to each other. The spring 1314 is compressed. After the spare grinding wheel 12 and the limiting block 1313 disengage, under the action of the spring 1314, the two limiting blocks 1313... Moving away from each other, the limiting block 1313 can limit the grinding wheel 12, improving its stability. At this time, the extension rod of the first cylinder 135 extends, driving the second key shaft 133 to move to the right, moving it away from the first key shaft 10. Then, the output shaft of the first motor 8 continues to rotate 90 degrees, rotating the first key shaft 10, which carries the spare grinding wheel 12, to the front of the first motor 8, and rotating the worn grinding wheel 12 to the rear of the first motor 8. This automatically replaces the worn grinding wheel 12, improving work efficiency and allowing real-time monitoring of its wear condition, ensuring timely replacement and maintaining machining accuracy.

[0045] refer to Figures 12-14It also includes a disassembly mechanism, which includes a storage sleeve 151, a fourth cylinder 152, a fourth moving plate 153, and a push rod 154. The storage sleeve 151 is connected to the upper left side of the slide plate 132. The storage sleeve 151 has inclined surfaces on both the upper and lower sides inside. The fourth cylinder 152 is installed on the upper rear side of the fixing plate 6 by bolts. The fourth cylinder 152 is electrically connected to the controller 1310. The right end of the extension end of the fourth cylinder 152 is connected to the fourth moving plate 153. The push rod 154 is connected to both the upper and lower sides of the right side of the fourth moving plate 153.

[0046] After the worn grinding wheel 12 rotates to the rear of the first motor 8, the first key shaft 10 on the rear of the first motor 8 will align with the storage sleeve 151. If the first key shaft 10 and the storage sleeve 151 are not fully aligned, the second motor 11 can be started to rotate the first key shaft 10, making the first key shaft 10 and the storage sleeve 151 fully aligned. When the telescopic rod of the first cylinder 135 is shortened, it will drive the slide plate 132 to move to the left. The slide plate 132 will drive the storage sleeve 151 to move to the left. The inclined surface inside the storage sleeve 151 will contact the limiting block 1313 and push the limiting block 131. 3. Move the two limiting blocks 1313 closer to each other so that the limiting blocks 1313 no longer limit the worn grinding wheel 12. The spring 1314 is compressed, and then the limiting blocks 1313 will enter the storage sleeve 151. Then, control the extension rod of the fourth cylinder 152 to extend, drive the fourth moving plate 153 to move to the right. The fourth moving plate 153 drives the push rod 154 to move to the right. The push rod 154 pushes the worn grinding wheel 12 on the first key shaft 10 onto the storage sleeve 151, automatically disassembling the worn grinding wheel 12. This can reduce manual intervention and reduce the labor intensity of the workers.

[0047] refer to Figure 15 It also includes a stabilizing mechanism, which includes a rotating rod 161 and a locking block 162. The rotating rod 161 is rotatably connected to the upper left side of the slide plate 132, and the locking block 162 is connected to the left end of the rotating rod 161. The locking block 162 corresponds to the first key shaft 10 on the front side, and the locking block 162 can move between the two limiting blocks 1313.

[0048] When the telescopic rod of the first cylinder 135 is shortened, it will drive the slide plate 132 to move to the left. The slide plate 132 will drive the rotating rod 161 to move to the left. The rotating rod 161 will drive the locking block 162 to move to the left. The locking block 162 will move between the two limiting blocks 1313, locking the two limiting blocks 1313 to prevent the limiting blocks 1313 from shaking, so that the limiting blocks 1313 can provide stable limiting for the grinding wheel 12.

[0049] refer to Figures 16-18It also includes an alignment mechanism, which includes a laser emitter 171, a first laser receiver 172, and a second laser receiver 173. The laser emitter 171 is installed on the right end of the first key shaft 10, the first laser receiver 172 is installed on the left end of the second key shaft 133, and the second laser receiver 173 is installed on the left end of the storage sleeve 151. The first laser receiver 172 and the second laser receiver 173 are both electrically connected to the controller 1310.

[0050] Laser emitter 171 can emit laser light. If the first key switch 10 and the second key switch 133 are not fully aligned, the second motor 11 can be activated to rotate the first key switch 10. The first key switch 10 then rotates the laser emitter 171. When the laser emitted by the laser emitter 171 shines on the first laser receiver 172, it indicates that the first key switch 10 and the second key switch 133 are fully aligned. The first laser receiver 172 sends a signal to the controller 1310. After receiving the signal, the controller 1310 controls the second motor 11 to shut down, ensuring that the first key switch 10 and the second key switch 133 are fully aligned. If the first key shaft 10 and the storage sleeve 151 are not perfectly aligned, the second motor 11 can be started to drive the first key shaft 10 to rotate. The first key shaft 10 drives the laser emitter 171 to rotate. When the laser emitted by the laser emitter 171 shines on the second laser receiver 173, it means that the first key shaft 10 and the storage sleeve 151 are perfectly aligned. The first laser receiver 172 sends a signal to the controller 1310. After receiving the signal, the controller 1310 controls the second motor 11 to turn off, ensuring that the first key shaft 10 and the storage sleeve 151 can be precisely aligned.

[0051] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. All equivalent substitutions made within the principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this invention are existing technologies known to those skilled in the art.

Claims

1. A precision and high-efficiency CNC grinding machine, comprising a frame (1), characterized in that, It also includes a first electric guide rail (2), a first movable plate (3), a second electric guide rail (4), a second movable plate (5), a fixed plate (6), a mounting bracket (7), a first motor (8), a rotating plate (9), a first key shaft (10), a second motor (11), a grinding wheel (12), a changing mechanism, and a clamping mechanism. The first electric guide rail (2) is mounted on the top of the frame (1). The first movable plate (3) is connected to the slider of the first electric guide rail (2). The second electric guide rail (4) is mounted on the top of the first movable plate (3). The second movable plate (5) is connected to the slider of the second electric guide rail (4). The second movable plate (5) is connected to the top of the second movable plate (5). A fixed plate (6) is connected to a mounting bracket (7). A first motor (8) is mounted on the top of the mounting bracket (7). A rotating plate (9) is rotatably connected to the mounting bracket (7). The output shaft of the first motor (8) is connected to the rotating plate (9). A first key shaft (10) is rotatably connected to both the front and rear sides of the rotating plate (9). A second motor (11) is mounted on both the front and rear sides of the rotating plate (9). The output shaft of the second motor (11) is connected to the first key shaft (10). A grinding wheel (12) is slidably connected to both the first key shaft (10). A replacement mechanism is used to replace the worn grinding wheel (12). A clamping mechanism is used to clamp cylindrical workpieces. The replacement mechanism includes a first guide rod (131), a slide plate (132), a second key shaft (133), a rubber block (134), a first cylinder (135), a third electric guide rail (136), a second cylinder (137), a push block (138), a monitoring component, and a limiting component. The first guide rod (131) is connected to both the front and rear sides of the top of the second moving plate (5). The first guide rod (131) is connected to the fixed plate (6). The slide plate (132) is slidably connected to both first guide rods (131). The second key shaft (133) for storing the spare grinding wheel (12) is connected to the slide plate (132). The rubber block for limiting the spare grinding wheel (12) is connected to the second key shaft (133). A first cylinder (135) is installed on the top of the second moving plate (5), the telescopic rod of the first cylinder (135) is connected to the slide plate (132), a third electric guide rail (136) is installed on the top of the second moving plate (5), a second cylinder (137) is installed on the top of the slider of the third electric guide rail (136), a push block (138) for pushing the spare grinding wheel (12) on the second key shaft (133) to the first key shaft (10) is connected to the telescopic rod of the second cylinder (137), a monitoring component is used to monitor the wear degree of the grinding wheel (12) on the first key shaft (10) in real time, and a limiting component is used to limit the grinding wheel (12) on the first key shaft (10); The monitoring components include a vibration sensor (139) and a controller (1310). Vibration sensors (139) are installed on both the front and rear sides of the rotating plate (9). The controller (1310) is installed on the frame (1). The first electric guide rail (2), the second electric guide rail (4), the first motor (8), the second motor (11), the first cylinder (135), the third electric guide rail (136), the second cylinder (137), and the vibration sensor (139) are all electrically connected to the controller (1310). The limiting assembly includes a second guide rod (1312), a limiting block (1313), and a spring (1314). The first key shaft (10) has a mounting groove (1311) and the second guide rod (1312) is connected in the mounting groove (1311). The upper and lower parts of the second guide rod (1312) are slidably connected to the limiting block (1313) for limiting the grinding wheel (12) on the first key shaft (10). The limiting block (1313) slides through the first key shaft (10), and the spring (1314) is connected between the two limiting blocks (1313).

2. A precision and high-efficiency CNC grinding machine according to claim 1, characterized in that, The clamping mechanism includes a fourth electric guide rail (141), a movable frame (142), an electric three-jaw chuck (143), a third motor (144), and a holding assembly. The fourth electric guide rail (141) is installed on the top left and right sides of the frame (1). The top of the slider of the fourth electric guide rail (141) is connected to the movable frame (142). The movable frame (142) is rotatably connected to the electric three-jaw chuck (143) for clamping cylindrical workpieces. The movable frame (142) is equipped with a third motor (144). The output shaft of the third motor (144) and the electric three-jaw chuck (143) are driven by gears. The fourth electric guide rail (141), the electric three-jaw chuck (143), and the third motor (144) are all electrically connected to the controller (1310). The holding assembly is used to hold the end of the cylindrical workpiece that is not clamped.

3. A precision and high-efficiency CNC grinding machine according to claim 2, characterized in that, The holding assembly includes a third cylinder (145), a third moving plate (146), a push rod (147), and a guide block (149). The third cylinder (145) is installed on the moving frame (142). The third cylinder (145) is electrically connected to the controller (1310). The third moving plate (146) is connected to the telescopic rod of the third cylinder (145). The push rod (147) for holding the unclamped end of the cylindrical workpiece is rotatably connected to the third moving plate (146). The push rod (147) is opened with a spline groove (148). The guide block (149) is connected in the electric three-jaw chuck (143). The guide block (149) is located in the spline groove (148), and the guide block (149) and the spline groove (148) are in sliding fit.

4. A precision and high-efficiency CNC grinding machine according to claim 3, characterized in that, It also includes a disassembly mechanism, which includes a storage sleeve (151), a fourth cylinder (152), a fourth moving plate (153), and a push rod (154). The storage sleeve (151) is connected to the slide plate (132), and the fourth cylinder (152) is installed on the fixed plate (6). The fourth cylinder (152) is electrically connected to the controller (1310). The fourth moving plate (153) is connected to the telescopic end of the fourth cylinder (152), and the push rod (154) for pushing the worn grinding wheel (12) on the first key shaft (10) to the storage sleeve (151) is connected to the fourth moving plate (153).

5. A precision and high-efficiency CNC grinding machine according to claim 4, characterized in that, It also includes a stabilizing mechanism, which includes a rotating rod (161) and a locking block (162). The rotating rod (161) is rotatably connected to the slide plate (132), and the locking block (162) is connected to the rotating rod (161). The locking block (162) can move between two limit blocks (1313) to lock the two limit blocks (1313).

6. A precision and high-efficiency CNC grinding machine according to claim 5, characterized in that, It also includes an alignment mechanism, which includes a laser emitter (171), a first laser receiver (172) and a second laser receiver (173). The laser emitter (171) is mounted on the first key shaft (10), the first laser receiver (172) is mounted on the second key shaft (133), and the second laser receiver (173) is mounted on the storage sleeve (151). The first laser receiver (172) and the second laser receiver (173) are both electrically connected to the controller (1310).

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