An automatic numerical control machine tool and method for shaft sleeve processing

Abstract

The present invention relates to the field of shaft sleeve grinding equipment, and in particular to an automated CNC machine tool and method for shaft sleeve processing, comprising a shaft sleeve main body, wherein the shaft sleeve main body is sleeved on the upper part of the shaft sleeve grinding machine tool, and the shaft sleeve grinding machine tool comprises a frame, a workbench is fixedly connected to the top of the frame, a fixed frame is fixedly connected to one side of the top of the workbench, a reduction motor is installed in the middle of the fixed frame, a threaded rod is fixedly connected to the driving end of the reduction motor, a threaded sleeve is threadedly connected to the outer periphery of the threaded rod, a fixed cylinder is fixedly connected to the end of the threaded sleeve away from the reduction motor, and the fixed cylinder is arranged on the inner side of the shaft sleeve main body. The present invention can drive the threaded sleeve to move forward and backward through the threaded rod, so as to realize the adjustment of the position of the shaft sleeve main body during grinding, and the electric push rod installed at the end of the fixed seat can realize the grinding of various parts of the shaft sleeve main body of different sizes and specifications.

Description

Technical Field

[0001] The invention relates to the field of shaft sleeve grinding equipment, and in particular to an automatic numerical control machine tool and method for shaft sleeve processing. Background Art

[0002] A sleeve is a tubular or annular metal part that is sleeved on a rotating shaft. When processing the sleeve, it is generally necessary to grind the sleeve. In actual operation, since sleeves come in various models with different inner diameters and lengths, traditional grinding devices are difficult to adapt to various models of sleeves. Grinding the inner wall greatly reduces the adaptability of the device. At the same time, some sleeves have a flange on the outer periphery of one end of the sleeve to cope with subsequent assembly. For such sleeves, traditional grinding devices need to be clamped and turned around for multiple times for grinding, which wastes a lot of time and leads to low processing efficiency. Therefore, we propose an automated CNC machine tool and method for sleeve processing to solve the above-mentioned problems. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an automatic CNC machine tool and method for shaft sleeve processing.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: an automated CNC machine tool for sleeve processing, comprising a sleeve main body, the sleeve main body is sleeved on the upper part of the sleeve grinding machine tool, the sleeve grinding machine tool comprises a frame, the top of the frame is fixedly connected to a workbench, one side of the top of the workbench is fixedly connected to a fixed frame, a reduction motor is installed in the middle of the fixed frame, the reduction motor driving end is fixedly connected to a threaded rod, the outer periphery of the threaded rod is threadedly connected to a threaded sleeve, the end of the threaded sleeve away from the reduction motor is fixedly connected to a fixed cylinder, the fixed cylinder is arranged on the inner side of the sleeve main body, the outer periphery of the threaded sleeve is fixedly connected to a fixed sleeve, the outer periphery of the fixed sleeve is fixedly connected to a driven gear ring, the top of the driven gear ring is meshed and connected with a driving gear, the driving gear is fixedly connected to the stepper motor driving end, the stepper motor is installed in the upper inner part of the sliding seat, the sliding seat is arranged on one side of the fixed cylinder, the bottom of the sliding seat is slidably connected to the slide groove through a slider, and the slide groove is opened on the front and rear sides of a part of the top of the workbench.

[0005] Preferably, both sides of the fixed cylinder are rotatably connected with toothed discs, the toothed discs are fixedly connected to the motor driving end, the motors are installed on both sides of the middle part of the fixed cylinder, one side of the toothed discs is meshedly connected with evenly distributed bevel gears, and the bevel gears are fixedly connected to the outer peripheral end of the connecting shaft.

[0006] Preferably, the connecting shafts are fixedly connected to the ends of the threaded columns, the threaded columns are rotatably connected to both sides of the outer periphery of the fixed tube, the threaded columns are threadedly connected to the inner sides of the thread grooves, the thread grooves are opened on both sides of the slide plate, and the slide plate is slidably connected to the middle part of the outer periphery of the fixed tube.

[0007] Preferably, the middle part of one end of the slide board away from the fixed cylinder is rotatably connected with a sleeve through a limiting ring, the limiting ring is fixedly connected to the middle parts of both ends of the sleeve, one end of the sleeve is fixedly connected to a driving end of a servo motor, and the servo motor is installed in the middle part of one end of the slide board.

[0008] Preferably, a core body is rotatably connected inside the jacket, one end of the core body away from the servo motor one is fixedly connected to the driving end of the servo motor two, and the servo motors two are fixedly connected to one end of the slide plate away from the servo motor one.

[0009] Preferably, the two driving ends of the servo motor both pass through the ends of the jacket, the outer periphery of the core is provided with evenly distributed slots, the slots are each equipped with electromagnetic blocks, and the slots are each equipped with grinding strips via the electromagnetic blocks.

[0010] Preferably, an opening is provided in the middle of one side of the workbench, side frames are installed on the front and rear sides of the top of the workbench and the lower part of the opening, a mounting groove is provided on one side of the side frame close to the fixed tube, fixing seats are installed on both sides of the mounting groove, and symmetrical electric push rods are installed at the ends of the fixing seats.

[0011] Preferably, the ends of the electric push rods are fixedly connected to mounting frames, motors are installed inside the mounting frames, the motor driving ends are fixedly connected to mounting shafts, grinding wheels are installed on the outer circumferences of the mounting shafts close to the sliding seat, and grinding rollers are installed on the outer circumferences of the mounting shafts away from the sliding seat.

[0012] Preferably, the mounting frame has evenly distributed spray holes at one end close to the grinding wheel and the grinding roller, the spray holes are connected to connecting pipes through the internal cavity of the mounting frame, the connecting pipes are fixedly connected to the end of the mounting frame, the connecting pipes are fixedly connected to the end away from the mounting frame with an air pump, and the air pumps are installed in both parts of the side frame.

[0013] Preferably, an automated numerical control method for sleeve processing comprises the following steps:

[0014] S1. Before grinding, people put the shaft sleeve body to be ground onto the outside of the fixed cylinder through the opening, and then drive the gear disc to rotate through the operation of the motor inside the fixed cylinder. When the gear disc rotates, it will drive the meshing bevel gears on one side to rotate, and the threaded column coaxial with it will be driven to rotate synchronously through the bevel gear, and the slide plates on the outer periphery of the fixed cylinder will be driven to open outwards through the threaded column, and the servo motor will drive the sleeve to rotate so that the sleeve rotates 180 degrees, and then the sleeve is used to achieve internal expansion clamping of the shaft sleeve body, and then the electric push rods at the grinding rollers on both sides and the bottom start to work and approach the shaft sleeve body to achieve three-point centering clamping of the outside of the shaft sleeve body;

[0015] S2. After the sleeve body is stably clamped by the grinding rollers, the slide plates are first retracted, and then the sleeve is reversed 180 degrees by the servo motor 1, so that the grinding strip contacts the inner wall of the sleeve body, and then the stepper motor inside the sliding seat drives the driving gear to rotate, and the driving gear drives the fixed sleeve to rotate by the meshing driven gear ring, and the fixed sleeve drives the threaded sleeve and the fixed sleeve to rotate synchronously, so as to realize the grinding of the inner wall of the sleeve body;

[0016] S3, during grinding, the core body is driven to rotate by the servo motor 2, and the grinding strips actually in contact during grinding are switched by the rotation of the core body. By switching multiple grinding strips, the grinding progress is controlled according to the actual processing requirements;

[0017] S4. After a long period of grinding, the grinding strip is easily pulled out of the slot by closing the electromagnetic card block, so that the staff can replace the new grinding strip. When replacing, the grinding strips of the mesh size are replaced synchronously to keep the wear rate of the grinding strips on each slide synchronous. After replacement, the electromagnetic card block is started to fix the replaced grinding strip;

[0018] S5. After the inner wall of the sleeve body is completed, the sleeve body is clamped and fixed by the clamping sleeve, and then the motor at the end of the shaft is installed to drive the grinding roller and the grinding wheel to rotate, the outer circle of the sleeve body is polished by the installation shaft, the end flange of the sleeve body is polished by the inner grinding groove of the grinding wheel, and the end faces of the sleeve body are polished by the end grinding surface of the grinding wheel;

[0019] S6. During grinding, the threaded rod is driven to rotate by the reduction motor, and the threaded sleeve is driven to move forward and backward by the threaded rod, so that the position of the sleeve body can be adjusted during grinding, and the electric push rod installed at the end of the fixed seat can be used to grind various parts of the sleeve body of different sizes and specifications. At the same time, the air pump installed inside the side frame inputs gas into the inside of the mounting frame through the connecting pipe, and the gas will be ejected through the spray hole, so that the grinding roller and grinding wheel can be cleaned during grinding.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] Before grinding, the sleeve can be used to achieve internal expansion clamping of the sleeve body, and then the electric push rods at the grinding rollers on both sides and the bottom start to work and approach the sleeve body to achieve three-point centering clamping of the outside of the sleeve body. By positioning the axis through the slide before clamping, the sleeve body can be accurately positioned, which facilitates the subsequent grinding of the inner wall of the sleeve body, thereby ensuring the coaxiality accuracy of the sleeve body after grinding.

[0022] During grinding, the core body can be driven to rotate through servo motor 2, and the rotation of the core body can realize the switching of the grinding strips that are actually in contact during grinding. By switching multiple grinding strips, the grinding progress can be controlled according to the actual processing requirements. When encountering a sleeve body with high grinding accuracy requirements, it can be processed through progressive grinding of "rough first and then fine", which greatly reduces the degree of wear on the grinding strips during processing and reduces the need for repositioning when switching between grinding tools. It can greatly improve the grinding efficiency and is beneficial to actual use.

[0023] After a long period of grinding, the grinding strip can be easily pulled out of the slot by closing the electromagnetic card block, which makes it convenient for the staff to replace the new grinding strip. When replacing, the grinding strips of the same mesh size are replaced synchronously to keep the wear rate of the grinding strips on each slide synchronized. After replacement, starting the electromagnetic card block can fix the replaced grinding strip, so that the replacement work can be completed quickly and the downtime can be reduced.

[0024] When the inner wall of the sleeve body is completed, the sleeve body can be clamped and fixed by the clamping sleeve, and then the motor at the end of the shaft can be installed to drive the grinding roller and the grinding wheel to rotate, so that the outer circle of the sleeve body can be polished by the installation shaft, the flange at the end of the sleeve body can be polished by the inner grinding groove of the grinding wheel, and the end faces of the sleeve body can be polished by the end grinding surface of the grinding wheel, so that the sleeve body can be fully polished without dead angles.

[0025] During grinding, the reduction motor can drive the threaded rod to rotate, and the threaded sleeve can be driven to move forward and backward through the threaded rod, so that the position of the sleeve body can be adjusted during grinding, and the electric push rod installed at the end of the fixed seat can be used to grind various parts of the sleeve body of different sizes and specifications. At the same time, the air pump installed inside the side frame can use the connecting pipe to input gas into the mounting frame, and the gas will be ejected through the spray hole, so that the grinding roller and grinding wheel can be cleaned during grinding, which is beneficial to practical use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view stereoscopic structural schematic diagram of an automated numerically controlled machine tool and method for shaft sleeve processing according to the present invention;

[0027] Figure 2 It is a rear-view stereoscopic structural schematic diagram of an automated numerically controlled machine tool and method for machining a shaft sleeve according to the present invention;

[0028] Figure 3 It is a partial structural schematic diagram of a fixed sleeve of an automated numerically controlled machine tool and method for machining a shaft sleeve according to the present invention;

[0029] Figure 4 It is a partial structural schematic diagram of a mounting frame of an automated numerically controlled machine tool and method for machining a shaft sleeve according to the present invention;

[0030] Figure 5 It is a schematic diagram of the internal structure of a fixed cylinder of an automated numerically controlled machine tool and method for machining a shaft sleeve according to the present invention;

[0031] Figure 6 It is a schematic diagram of the local structure of the threaded column of an automated numerically controlled machine tool and method for machining a shaft sleeve according to the present invention;

[0032] Figure 7 It is a partial structural schematic diagram of a servo motor of an automated numerically controlled machine tool and method for shaft sleeve processing of the present invention;

[0033] Figure 8 The present invention is a schematic diagram of the local structure of the core of an automated numerically controlled machine tool and method for machining shaft sleeves.

[0034] 1. Bushing grinding machine; 101. Frame; 102. Workbench; 103. Opening; 104. Slide; 105. Fixed frame; 106. Reducer motor; 107. Threaded rod; 108. Sliding seat; 109. Bushing body; 110. Side frame; 111. Threaded sleeve; 112. Fixed sleeve; 113. Mounting frame; 114. Fixed seat; 115. Slide plate; 116. Electric push rod; 117. Grinding wheel; 118. Driven gear ring; 119. Driving gear; 120, grinding roller; 121, threaded column; 122, fixed cylinder; 123, mounting shaft; 124, spray hole; 125, connecting pipe; 126, mounting groove; 127, servo motor one; 128, threaded groove; 129, gear plate; 130, jacket; 131, connecting shaft; 132, bevel gear; 133, grinding strip; 134, limit ring; 135, core; 136, electromagnetic clamp block; 137, clamping groove; 138, servo motor two. DETAILED DESCRIPTION

[0035] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0036] like Figure 1-Figure 8 The automated CNC machine tool for sleeve processing shown in the figure comprises a sleeve body 109, the sleeve body 109 is sleeved on the upper part of the sleeve grinding machine tool 1, the sleeve grinding machine tool 1 comprises a frame 101, a workbench 102 is fixedly connected to the top of the frame 101, a fixing frame 105 is fixedly connected to one side of the top of the workbench 102, a reduction motor 106 is installed in the middle of the fixing frame 105, a threaded rod 107 is fixedly connected to the driving end of the reduction motor 106, a threaded sleeve 111 is threadedly connected to the outer periphery of the threaded rod 107, and a fixed sleeve 111 is fixedly connected to the end of the threaded sleeve 111 away from the reduction motor 106. The fixed cylinder 122 is arranged on the inner side of the shaft sleeve body 109, the outer side of the threaded sleeve 111 is fixedly connected with the fixed sleeve 112, the outer side of the fixed sleeve 112 is fixedly connected with the driven gear ring 118, the top of the driven gear ring 118 is meshed with the driving gear 119, the driving gear 119 is fixedly connected to the driving end of the stepper motor, the stepper motor is installed in the upper part of the sliding seat 108, the sliding seat 108 is arranged on one side of the fixed cylinder 122, the bottom of the sliding seat 108 is slidably connected with the slide groove 104 through the slider, and the slide groove 104 is opened at the front and rear sides of the top part of the workbench 102;

[0037] Furthermore, in a specific implementation, after the inner wall of the sleeve body 109 is completed, the sleeve body 109 can be clamped and fixed by the sleeve 130, and then the motor at the end of the mounting shaft 123 can be used to drive the grinding roller 120 and the grinding wheel 117 to rotate, so that the outer circle of the sleeve body 109 can be ground through the mounting shaft 123, the end flange of the sleeve body 109 can be ground through the inner grinding groove of the grinding wheel 117, and the end faces of the sleeve body 109 can be ground through the end grinding surface of the grinding wheel 117, thereby achieving full grinding of the sleeve body 109 without dead angles.

[0038] Among them, toothed discs 129 are rotatably connected on both sides of the fixed cylinder 122, and the toothed discs 129 are fixedly connected to the motor driving end. The motors are installed on both sides of the middle part of the fixed cylinder 122. One side of the toothed disc 129 is meshed and connected with evenly distributed bevel gears 132. The bevel gears 132 are fixedly connected to the outer peripheral ends of the connecting shaft 131. The connecting shaft 131 is fixedly connected to the ends of the threaded column 121. The threaded column 121 is rotatably connected to both sides of the outer periphery of the fixed cylinder 122. The threaded column 121 is threadedly connected to the inner side of the thread groove 128. The thread grooves 128 are opened on both sides of the slide plate 115. The slide plate 115 is slidably connected to the middle part of the outer periphery of the fixed cylinder 122.

[0039] Furthermore, in a specific implementation, before grinding, people can put the shaft sleeve body 109 to be ground onto the outside of the fixed cylinder 122 through the opening 103, and then the motor inside the fixed cylinder 122 can drive the toothed disc 129 to rotate. When the toothed disc 129 rotates, it will drive the various bevel gears 132 meshing on one side to rotate, and the bevel gear 132 can drive the threaded column 121 coaxial with it to rotate synchronously, and the threaded column 121 can synchronously drive the various slides 115 on the periphery of the fixed cylinder 122 to open outward, and at the same time, the servo motor 127 can drive the sleeve 130 to rotate, so that the sleeve 130 can rotate 180 degrees, and then the sleeve 130 can achieve internal expansion and clamping of the shaft sleeve body 109, and then the electric push rods 116 at the grinding rollers 120 on both sides and the bottom start to work and approach the shaft sleeve body 109 to achieve grinding of the shaft sleeve body 1 09 The three-point centering clamping outside can realize accurate positioning of the sleeve body 109 by first positioning the axis through the slide plate 115 before clamping, which is convenient for the subsequent grinding of the inner wall of the sleeve body 109, thereby ensuring the coaxiality accuracy of the sleeve body 109 after grinding. When the sleeve body 109 is stably clamped by the grinding rollers 120, the slide plates 115 are first retracted, and then the sleeve 130 is reversed 180 degrees through the servo motor 127, so that the grinding strip 133 contacts the inner wall of the sleeve body 109, and then the stepper motor inside the sliding seat 108 can drive the active gear 119 to rotate, and the active gear 119 can use the meshing driven gear ring 118 to drive the fixed sleeve 112 to rotate, and the fixed sleeve 112 can drive the threaded sleeve 111 and the fixed sleeve 112 to rotate synchronously, so as to realize the grinding of the inner wall of the sleeve body 109.

[0040] The middle part of one end of the slide plate 115 away from the fixed cylinder 122 is rotatably connected with the jacket 130 through a limit ring 134, and the limit ring 134 is fixedly connected to the middle parts of both ends of the jacket 130, one end of the jacket 130 is fixedly connected to the driving end of the servo motor 127, and the servo motor 127 is installed in the middle part of one end of the slide plate 115, and the inside of the jacket 130 is rotatably connected with the core 135, and the end of the core 135 away from the servo motor 127 is fixedly connected to the driving end of the servo motor 2 138, and the servo motor 2 138 is fixedly connected to the end of the slide plate 115 away from the servo motor 127, and the driving end of the servo motor 2 138 passes through the end of the jacket 130, and the outer periphery of the core 135 is provided with uniformly distributed card grooves 137, and the inside of the card grooves 137 is installed with electromagnetic card blocks 136, and the inside of the card grooves 137 is installed with grinding strips 133 through the electromagnetic card blocks 136;

[0041] Furthermore, in specific implementation, after a long period of grinding, the grinding strip 133 can be easily pulled out of the slot 137 by closing the electromagnetic card block 136, so that the staff can easily replace the new grinding strip 133. When replacing, the grinding strips 133 of the mesh size are replaced synchronously to keep the wear rate of the grinding strips 133 on each slide 115 synchronized. After replacement, starting the electromagnetic card block 136 can fix the replaced grinding strip 133, so that the replacement work can be completed quickly and the downtime can be reduced.

[0042] An opening 103 is provided in the middle of one side of the workbench 102, and side frames 110 are installed on the front and rear sides of the top of the workbench 102 and the lower part of the opening 103. A mounting groove 126 is provided on one side of the side frame 110 close to the fixed cylinder 122, and a fixing seat 114 is installed on both sides of the mounting groove 126. A symmetrical electric push rod 116 is installed at the end of the fixing seat 114, and the end of the electric push rod 116 is fixedly connected to the mounting frame 113, and a motor is installed inside the mounting frame 113, and the motor drive end is fixedly connected to the mounting shaft 123, close to the sliding seat A grinding wheel 117 is installed on the outer circumference of the mounting shaft 123 on one side of 108, and a grinding roller 120 is installed on the outer circumference of the mounting shaft 123 on the side away from the sliding seat 108. The mounting frame 113 is provided with uniformly distributed spray holes 124 at one end close to the grinding wheel 117 and the grinding roller 120. The spray holes 124 are connected to connecting pipes 125 through the internal cavity of the mounting frame 113. The connecting pipes 125 are fixedly connected to the end of the mounting frame 113. The ends of the connecting pipes 125 away from the mounting frame 113 are fixedly connected to air pumps, and the air pumps are installed at two parts inside the side frame 110.

[0043] Furthermore, in a specific implementation, during grinding, the threaded rod 107 can be driven to rotate through the reduction motor 106, and the threaded sleeve 111 can be driven to move forward and backward through the threaded rod 107, so that the position of the sleeve body 109 can be adjusted during grinding, and the electric push rod 116 installed at the end of the fixed seat 114 can be used to grind various parts of the sleeve body 109 of different sizes and specifications. At the same time, the air pump installed inside the side frame 110 can use the connecting pipe 125 to input gas into the mounting frame 113, and the gas will be ejected through the spray hole 124, so that the grinding roller 120 and the grinding wheel 117 can be cleaned during grinding, which is beneficial to actual use.

[0044] Among them, an automated numerical control method for shaft sleeve processing is applied to an automated numerical control method for shaft sleeve processing according to any one of claims 1 to 9, characterized in that it includes the following operating steps:

[0045] S1. Before grinding, people can put the shaft sleeve body 109 to be ground onto the outside of the fixed cylinder 122 through the opening 103, and then the motor inside the fixed cylinder 122 can drive the toothed disc 129 to rotate. When the toothed disc 129 rotates, it will drive the various bevel gears 132 meshing on one side to rotate, and the bevel gear 132 can drive the threaded column 121 coaxial with it to rotate synchronously, and the threaded column 121 can synchronously drive the various slides 115 on the outer periphery of the fixed cylinder 122 to open outward, and at the same time, the servo motor 127 can drive the sleeve 130 to rotate, so that the sleeve 130 can rotate 180 degrees, and then the sleeve 130 can realize the internal expansion clamping of the shaft sleeve body 109, and then the electric push rods 116 at the grinding rollers 120 on both sides and the bottom start to work, approaching the shaft sleeve body 109, and realizing the three-point centering clamping of the outside of the shaft sleeve body 109;

[0046] S2. After the sleeve body 109 is stably clamped by the grinding rollers 120, the slide plates 115 are first retracted, and then the sleeve 130 is reversed 180 degrees by the servo motor 127, so that the grinding strip 133 contacts the inner wall of the sleeve body 109, and then the stepping motor inside the sliding seat 108 can drive the driving gear 119 to rotate, and the driving gear 119 can use the meshing driven gear ring 118 to drive the fixed sleeve 112 to rotate, and the fixed sleeve 112 can drive the threaded sleeve 111 to rotate synchronously with the fixed sleeve 112, so as to realize the grinding of the inner wall of the sleeve body 109;

[0047] S3. During grinding, the servo motor 138 can drive the core 135 to rotate. The rotation of the core 135 can realize the switching of the grinding strips 133 that are actually in contact during grinding. By switching multiple grinding strips 133, the grinding progress can be controlled according to the actual processing requirements. When encountering a sleeve body 109 with high grinding accuracy requirements, it can be processed by "rough first and then fine" progressive grinding, so that the wear degree of the grinding strips 133 during processing is greatly reduced, and at the same time, the need for repositioning when switching between grinding tools is reduced, which can greatly improve the grinding efficiency and is conducive to actual use;

[0048] S4. After a long period of grinding, the grinding strip 133 can be easily pulled out of the slot 137 by closing the electromagnetic clamp 136, so that the staff can replace the new grinding strip 133. When replacing, the grinding strips 133 of the mesh size are replaced synchronously to keep the wear rate of the grinding strips 133 on each slide 115 synchronous. After the replacement, the electromagnetic clamp 136 is started to fix the replaced grinding strip 133, so that the replacement work can be completed quickly and the downtime can be reduced.

[0049] S5. After the inner wall of the sleeve body 109 is completed, the sleeve body 109 can be clamped and fixed by the clamping sleeve 130. Then, the motor at the end of the mounting shaft 123 can be used to drive the grinding roller 120 and the grinding wheel 117 to rotate. The outer circle of the sleeve body 109 can be ground by the mounting shaft 123. The end flange of the sleeve body 109 can be ground by the inner grinding groove of the grinding wheel 117. The end grinding surface of the grinding wheel 117 can be used to grind the end faces of the sleeve body 109, so that the sleeve body 109 can be fully ground without dead angles.

[0050] S6. During grinding, the reduction motor 106 can drive the threaded rod 107 to rotate, and the threaded rod 107 can drive the threaded sleeve 111 to move forward and backward, so that the position of the sleeve body 109 can be adjusted during grinding, and the electric push rod 116 installed at the end of the fixed seat 114 can be used to grind various parts of the sleeve body 109 of different sizes and specifications. At the same time, the air pump installed inside the side frame 110 can use the connecting pipe 125 to input gas into the mounting frame 113, and the gas will be ejected through the spray hole 124, so that the grinding roller 120 and the grinding wheel 117 can be cleaned during grinding, which is beneficial to actual use.

[0051] Working principle:

[0052] In actual use, before grinding, people can put the shaft sleeve body 109 to be ground onto the outside of the fixed cylinder 122 through the opening 103, and then the motor inside the fixed cylinder 122 can drive the toothed disc 129 to rotate. When the toothed disc 129 rotates, it will drive the various bevel gears 132 meshing on one side to rotate, and the bevel gear 132 can drive the coaxial threaded column 121 to rotate synchronously, and the threaded column 121 can synchronously drive the various slides 115 on the periphery of the fixed cylinder 122 to open outward, and at the same time, the servo motor 127 can drive the sleeve 130 to rotate, so that the sleeve 130 can rotate 180 degrees, and then the sleeve body 109 can be clamped internally by the sleeve 130, and then the two sides and The electric push rods 116 at the bottom grinding rollers 120 all start to work and approach the sleeve body 109 to achieve three-point centering clamping of the outside of the sleeve body 109. By first positioning the axis through the slide plate 115 before clamping, the sleeve body 109 can be accurately positioned, which is convenient for the subsequent grinding of the inner wall of the sleeve body 109, thereby ensuring the coaxiality accuracy of the sleeve body 109 after grinding. When the sleeve body 109 is stably clamped by the grinding rollers 120, the slide plates 115 are first retracted, and then the sleeve 130 is reversed 180 degrees through the servo motor 127, so that the grinding strip 133 contacts the inner wall of the sleeve body 109, and then the driving gear 119 can be driven by the stepper motor inside the sliding seat 108. The driving gear 119 can use the meshing driven gear ring 118 to drive the fixed sleeve 112 to rotate, and the fixed sleeve 112 can drive the threaded sleeve 111 and the fixed sleeve 112 to rotate synchronously to achieve the grinding of the inner wall of the sleeve body 109. During grinding, the servo motor 138 can drive the core 135 to rotate, and the rotation of the core 135 can achieve the switching of the grinding strips 133 that are actually in contact during grinding. By switching multiple grinding strips 133, the grinding progress can be controlled according to the actual processing requirements. When encountering a sleeve body 109 with high grinding accuracy requirements, it can be processed by progressive grinding of "rough first and then fine", so that the wear degree of the grinding strips 133 during processing is large. The grinding efficiency can be greatly improved, and the grinding strip 133 can be easily drawn out of the card slot 137 by closing the electromagnetic card block 136 after a long period of grinding, so that the staff can replace the new grinding strip 133 conveniently. When replacing, the grinding strips 133 of the mesh number are replaced synchronously to keep the wear rate of the grinding strips 133 on each slide plate 115 synchronous. After replacement, the electromagnetic card block 136 is started to fix the replaced grinding strip 133, so that the replacement work can be completed quickly and the downtime can be reduced. When the inner wall of the sleeve body 109 is completed, the sleeve body 109 can be clamped and fixed by the sleeve 130.Afterwards, the motor at the end of the mounting shaft 123 can be used to drive the grinding roller 120 and the grinding wheel 117 to rotate, and the outer circle of the sleeve body 109 can be polished through the mounting shaft 123, and the end flange of the sleeve body 109 can be polished through the inner grinding groove of the grinding wheel 117. The end grinding surface of the grinding wheel 117 can be used to polish the end faces of the sleeve body 109, so that the sleeve body 109 can be fully polished without dead angles. During the grinding, the reduction motor 106 can drive the threaded rod 107 to The threaded sleeve 111 can be driven to move forward and backward through the threaded rod 107, so that the position of the sleeve body 109 can be adjusted during grinding. The electric push rod 116 installed at the end of the fixed seat 114 can be used to grind various parts of the sleeve body 109 of different sizes and specifications. At the same time, the air pump installed inside the side frame 110 can use the connecting pipe 125 to input gas into the mounting frame 113, and the gas will be ejected through the spray hole 124, so that the grinding roller 120 and the grinding wheel 117 can be cleaned during grinding, which is beneficial to practical use.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An automated CNC machine tool for machining a sleeve, comprising a sleeve body (109), characterized in that: The sleeve body (109) is sleeved on the upper part of the sleeve grinding machine (1), and the sleeve grinding machine (1) comprises a frame (101), the top of the frame (101) is fixedly connected to a workbench (102), one side of the top of the workbench (102) is fixedly connected to a fixing frame (105), a reduction motor (106) is installed in the middle of the fixing frame (105), a threaded rod (107) is fixedly connected to the driving end of the reduction motor (106), a threaded sleeve (111) is threadedly connected to the outer periphery of the threaded rod (107), and a fixing cylinder (122) is fixedly connected to the end of the threaded sleeve (111) away from the reduction motor (106), and the fixing cylinder (122) is arranged on the inner side of the sleeve body (109), and the threaded sleeve (106) is fixedly connected to the inner side of the sleeve body (109). A fixed sleeve (112) is fixedly connected to the outer circumference of the fixed sleeve (112), and a driven gear ring (118) is fixedly connected to the outer circumference of the fixed sleeve (112). The top of the driven gear ring (118) is meshedly connected to a driving gear (119). The driving gear (119) is fixedly connected to the driving end of the stepper motor. The stepper motor is installed in the upper part of the sliding seat (108). The sliding seat (108) is arranged on one side of the fixed cylinder (122). The bottom of the sliding seat (108) is slidably connected to the slide groove (104) through a slider. The slide groove (104) is opened on the front and rear sides of the top of the workbench (102). The fixed cylinder (122) is rotatably connected to the two sides with toothed discs (129). The toothed discs (129) are fixedly connected At the motor drive end, the motors are mounted on both sides of the middle of the fixed cylinder (122), one side of the toothed disc (129) is meshedly connected with evenly distributed bevel gears (132), the bevel gears (132) are fixedly connected to the outer peripheral ends of the connecting shaft (131), the connecting shaft (131) is fixedly connected to the ends of the threaded columns (121), the threaded columns (121) are rotatably connected to both sides of the outer periphery of the fixed cylinder (122), the threaded columns (121) are threadedly connected to the inner sides of the threaded grooves (128), the threaded grooves (128) are provided on both sides of the slide plate (115), the slide plate (115) is slidably connected to the middle of the outer periphery of the fixed cylinder (122), and the middle of one end of the slide plate (115) away from the fixed cylinder (122) is The jacket (130) is rotatably connected to the jacket (130) via a limit ring (134). The limit ring (134) is fixedly connected to the middle of both ends of the jacket (130). One end of the jacket (130) is fixedly connected to the driving end of a servo motor (127). The servo motor (127) is installed in the middle of one end of the slide plate (115). The jacket (130) is rotatably connected to a core (135) inside. The end of the core (135) away from the servo motor (127) is fixedly connected to the driving end of a servo motor (138). The servo motor (138) is fixedly connected to the end of the slide plate (115) away from the servo motor (127). The driving end of the servo motor (138) passes through the end of the jacket (130).The core (135) is provided with evenly distributed card slots (137) on its outer periphery, and electromagnetic card blocks (136) are installed inside the card slots (137), and grinding strips (133) are installed inside the card slots (137) through the electromagnetic card blocks (136). An opening (103) is provided in the middle of one side of the workbench (102), and side frames (110) are installed on the front and rear sides of the top of the workbench (102) and the lower part of the opening (103). A mounting slot (126) is provided on one side of the side frame (110) close to the fixed cylinder (122), and fixed seats (114) are installed on both sides of the mounting slot (126), and symmetrical electric push rods (116) are installed at the ends of the fixed seats (114).

2. The automatic CNC machine tool for sleeve processing according to claim 1, characterized in that: The ends of the electric push rods (116) are fixedly connected to the mounting frames (113), the mounting frames (113) are internally installed with motors, the motor drive ends are fixedly connected to the mounting shafts (123), the outer circumference of the mounting shafts (123) on the side close to the sliding seat (108) is installed with a grinding wheel (117), and the outer circumference of the mounting shafts (123) on the side away from the sliding seat (108) is installed with a grinding roller (120).

3. The automatic CNC machine tool for sleeve processing according to claim 2, characterized in that: The mounting frame (113) is provided with uniformly distributed spray holes (124) at one end close to the grinding wheel (117) and the grinding roller (120); the spray holes (124) are connected to connecting pipes (125) through the internal cavity of the mounting frame (113); the connecting pipes (125) are fixedly connected to the end of the mounting frame (113); the ends of the connecting pipes (125) away from the mounting frame (113) are fixedly connected to air pumps; the air pumps are installed at two parts inside the side frame (110).

4. An automated numerical control method for shaft sleeve processing, applied to the automated numerical control method for shaft sleeve processing as claimed in claim 3, characterized in that: The steps include: S1. Before grinding, the shaft sleeve body (109) to be ground is placed on the outside of the fixed cylinder (122) through the opening (103), and then the motor inside the fixed cylinder (122) drives the toothed disc (129) to rotate. When the toothed disc (129) rotates, it drives the meshing bevel gears (132) on one side to rotate, and the threaded column (121) coaxial with the bevel gear (132) is driven to rotate synchronously, and the fixed cylinder (122) is driven synchronously by the threaded column (121). The slide plates (115) on the outer periphery of the cylinder (122) are opened outward, and the servo motor (127) drives the sleeve (130) to rotate, so that the sleeve (130) rotates 180 degrees, and then the sleeve (130) is used to achieve internal expansion clamping of the sleeve body (109), and then the electric push rods (116) at the grinding rollers (120) on both sides and the bottom start to work and approach the sleeve body (109), so as to achieve three-point centering clamping of the outside of the sleeve body (109); S2. After the shaft sleeve body (109) is stably clamped by the grinding rollers (120), the slide plates (115) are first retracted, and then the clamping sleeve (130) is reversed 180 degrees by a servo motor 1 (127), so that the grinding strip (133) contacts the inner wall of the shaft sleeve body (109). Then, the stepping motor inside the sliding seat (108) drives the driving gear (119) to rotate, and the driving gear (119) drives the fixed sleeve (112) to rotate by using the meshing driven gear ring (118). The fixed sleeve (112) drives the threaded sleeve (111) and the fixed sleeve (112) to rotate synchronously, thereby achieving the grinding of the inner wall of the shaft sleeve body (109); S3, during grinding, the core body (135) is driven to rotate by the servo motor 2 (138), and the grinding strip (133) actually in contact during grinding is switched by the rotation of the core body (135), and the grinding progress is controlled according to the actual processing requirements by switching the multiple grinding strips (133); S4. After a long period of grinding, the grinding strip (133) is easily drawn out of the slot (137) by closing the electromagnetic clamp (136), so that the staff can replace the new grinding strip (133). When replacing, the grinding strips (133) of the mesh size are replaced synchronously to keep the wear rates of the grinding strips (133) on the slides (115) synchronous. After the replacement, the electromagnetic clamp (136) is started to fix the replaced grinding strip (133); S5. When the inner wall of the sleeve body (109) is completed, the sleeve body (109) is clamped and fixed by the clamping sleeve (130), and then the motor at the end of the mounting shaft (123) is used to drive the grinding roller (120) and the grinding wheel (117) to rotate, and the outer circle of the sleeve body (109) is ground by the mounting shaft (123), the end flange of the sleeve body (109) is ground by the inner grinding groove of the grinding wheel (117), and the end surfaces of the sleeve body (109) are ground by the end grinding surface of the grinding wheel (117); S6. During grinding, the threaded rod (107) is driven to rotate by the reduction motor (106), and the threaded sleeve (111) is driven to move forward and backward by the threaded rod (107), so that the position of the sleeve body (109) can be adjusted during grinding. The electric push rod (116) installed at the end of the fixed seat (114) can be used to grind various parts of the sleeve body (109) of different sizes and specifications. At the same time, the air pump installed inside the side frame (110) inputs gas into the inside of the mounting frame (113) through the connecting pipe (125), and the gas is ejected through the spray hole (124), so that the grinding roller (120) and the grinding wheel (117) can be cleaned during grinding.

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