A shaft hole inner wall polishing device and polishing method for gear box production and processing

Abstract

This invention discloses a grinding device and method for grinding the inner wall of shaft holes in gearbox manufacturing, relating to the field of gearbox processing technology. The device includes a main body comprising a machine body with a conveyor belt rotatably mounted on its inner wall. Two vertical plates are fixedly connected to the surface of the machine body, and a high-efficiency grinding mechanism is provided on the inner wall of each vertical plate. A grinding auxiliary mechanism is also provided on the surface of the machine body. This invention, through the cooperation of an expansion unit and an adjustment unit, achieves the purpose of adapting to different hole diameters and continuous grinding. During grinding, the grinding block can deform and expand to adapt to shaft holes of different diameters. Simultaneously, the device can continuously and stably grind shaft holes, thereby better meeting the requirements of different hole diameters and improving the grinding effect. It also improves the overall grinding efficiency, making the overall grinding operation more stable and efficient.

Description

Technical Field

[0001] This invention relates to the field of gearbox processing technology, specifically to a grinding device and grinding method for grinding the inner wall of shaft holes in gearbox production and processing. Background Technology

[0002] A shaft hole inner wall grinding device is a piece of equipment used to grind the inner wall of a shaft hole, aiming to improve the quality and precision of the hole wall.

[0003] Gearbox shaft holes refer to the holes in gearboxes used for mounting shafts. To ensure efficient and continuous grinding of the inner walls of gearbox shaft holes, continuous workpiece feeding without stopping the machine is required during grinding. Simultaneously, the shape of the grinding section needs to be adjusted to accommodate different hole diameters. Existing shaft hole inner wall grinding devices typically lack these functions, which easily reduces grinding efficiency and leads to workpieces with poor grinding results. Therefore, we propose a shaft hole inner wall grinding device and method for gearbox manufacturing.

[0004] Combining the above issues, we find that existing shaft hole inner wall grinding devices used in gearbox production and processing cannot simultaneously avoid the problems mentioned above. Even if they can solve the problems, they require the use of external tools, thus failing to achieve the desired effect. Therefore, we propose a shaft hole inner wall grinding device and grinding method for gearbox production and processing. Summary of the Invention

[0005] The purpose of this invention is to provide a grinding device and grinding method for the inner wall of shaft holes used in gearbox manufacturing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a grinding device for the inner wall of a shaft hole for gearbox production and processing, comprising a device body, the device body including a machine body, a conveyor belt rotatably mounted on the inner wall of the machine body, two vertical plates fixedly connected to the surface of the machine body, a top frame fixedly connected between the two vertical plates, a high-efficiency grinding mechanism provided on the inner wall of the vertical plates, and a grinding auxiliary mechanism provided on the surface of the machine body;

[0007] The high-efficiency grinding mechanism includes an expansion unit, which is disposed on the top of the conveyor belt;

[0008] The high-efficiency grinding mechanism also includes an adjustment unit, which is located on top of the expansion unit and is used in conjunction with the expansion unit.

[0009] The number of vertical plates is two, and two drive motors are fixedly installed on the surface of one of the vertical plates. The surface of the conveyor belt is provided with the workpiece body.

[0010] Preferably, the expansion unit includes a main shaft, which is movably mounted on the top of the conveyor belt. A mounting plate is fixedly sleeved on the surface of the main shaft. There are three sets of mounting plates, with two plates in each set. Four crossbars are fixedly mounted on the surface of every two mounting plates. A cross cylinder is fixedly connected to the surface of every two mounting plates. An expansion grinding block is movably sleeved on the surface of each crossbar. The inner wall of the expansion grinding block is movably connected to the surface of the crossbar via a bearing. Four sets of small springs are fixedly connected to the surface of the cross cylinder, with one end of each small spring fixedly connected to the surface of the expansion grinding block.

[0011] Preferably, a bearing sleeve is fixedly fitted onto the surface of the main shaft, and a driven wheel is fixedly fitted onto the surface of the main shaft. There are four bearing sleeves and four driven wheels. One of the vertical plates has a long seat plate fixedly installed on its surface. There are two long seat plates. An infrared sensor is fixedly connected to the front side of the long seat plate. There are four infrared sensors. A limit plate is fixedly connected to the surface of the conveyor belt. One side of the limit plate is in contact with the workpiece body. A shaping plate is fixedly installed on the surface of the conveyor belt. A shaping cone hole is opened on one side of the shaping plate. There are two limit plates and two shaping plates.

[0012] Preferably, the adjustment unit includes a rotating shaft, which is rotatably mounted on the inner wall of the vertical plate. One end of the rotating shaft passes through to the outer side of one of the vertical plates and is fixedly connected to the output shaft of the drive motor. There are two rotating shafts. A wide gear is fixedly sleeved on the surface of the rotating shaft. A toothed plate is provided on the surface of the wide gear. There are two sets of toothed plates, with two toothed plates in each set. Each set of toothed plates meshes with the wide gear. A guide rod is fixedly connected to the top of the toothed plate, and the top of the guide rod passes through to the outer side of the top frame.

[0013] Preferably, a base plate is fixedly connected to the surface of the toothed plate, a movable groove plate is slidably connected to one side of the base plate, a pull rod is fixedly connected to the top of the movable groove plate, a top frame is movably sleeved on the surface of the pull rod, the bottom of the top frame is fixedly connected to the surface of the top frame, an mounting block is fixedly installed on the inner wall of the top frame, one end of the pull rod extends through to the outside of the mounting block and is fixedly connected to a large spring, one end of the large spring is fixedly connected to the inner wall of the top frame, and the surface of the pull rod is slidably connected through the inner wall of the mounting block.

[0014] Preferably, a V-shaped groove is formed on one side of the movable slot plate, and a series plate is slidably connected to one side of the base plate. There are four series plates, and one end of the four series plates extends to the inner wall of the V-shaped groove. A movable frame is fixedly installed on the front side of two series plates, and a jacket plate is fixedly installed on one side of the movable frame.

[0015] Preferably, a mounting side plate is fixedly installed on one side of the substrate, and a servo motor is fixedly installed on the inner wall of the mounting side plate. One end of the output shaft of the servo motor passes through to the outer side of the mounting side plate and is fixedly connected to a drive wheel. The drive wheel and the driven wheel are used in cooperation. Friction pads are fixedly installed on the inner walls of both the drive wheel and the driven wheel. The number of friction pads is four sets.

[0016] Preferably, the grinding auxiliary mechanism includes a housing, which is fixedly installed on the surface of the machine body. A short shaft is rotatably installed on the inner wall of the housing. The surface of the short shaft is movably connected to the inner wall of the housing via a bearing. A turntable frame is fixedly fitted on the surface of the short shaft. There are two turntable frames. Auxiliary wheels are rotatably installed on the surface of the turntable frames. There are two sets of auxiliary wheels, with six auxiliary wheels in each set. A large pulley is fixedly fitted on the surface of the short shaft. A small pulley is provided on the top of the large pulley. A belt is fitted on the surface of the large pulley and the small pulley.

[0017] Preferably, a cooling box is fixedly installed on the top of the outer shell, an air duct is fixedly connected to the bottom of the cooling box, one end of the air duct extends into the inner cavity of the outer shell, and there are two air ducts. A baffle is fixedly installed on the inner wall of the cooling box, a top cover is fixedly connected to the top of the cooling box, a condenser assembly is fixedly installed on the inner wall of the top cover, one side of the condenser assembly extends into the inner cavity of the cooling box, and a fan is fixedly installed on the inner wall of the cooling box. The surface of the fan is fixedly connected to one side of a small pulley.

[0018] A grinding method for a shaft hole inner wall grinding device used in gearbox manufacturing includes the following steps:

[0019] S1: First, debug the device body, and then place the workpiece body on the conveyor belt between the limiting plate and the shaping plate. According to the operation rules summarized from the debugging of the device body, three gaps need to be left between every two workpiece bodies to ensure that the device body can run smoothly. Then, start the machine body to start the grinding operation through the external controller or power supply.

[0020] S2: After the machine body starts, the workpiece body on top is fed by the conveyor belt. First, the grinding auxiliary mechanism will be processed. Note that the condenser needs to be pre-cooled when the machine body starts. When the workpiece body passes the bottom of the grinding auxiliary mechanism, the auxiliary wheel is in contact with the top surface of the workpiece body. The continuous feeding force makes the auxiliary wheel rotate the turntable frame, which in turn drives the large pulley to rotate through the short shaft. The large pulley drives the small pulley on the cooling box to rotate through the belt. The small pulley drives the fan to rotate. Under the action of the fan, the outside air is brought into the pre-cooled condenser and cooled. The air is then concentrated and quickly guided to the vicinity of the shaft hole from the air cylinder to achieve shaft hole cooling.

[0021] S3: After the workpiece body is cold-treated, it continues to move forward. When it passes the first infrared sensor, the drive motor on one side will rotate, which will drive the wide gear on the other side to rotate. The rotation of the wide gear on one side will cause the toothed plates distributed on both sides to move up and down in opposite directions. At this time, the first clamping plate on the first base plate will release the main shaft and move upward. The driving wheel and driven wheel on one side of the first base plate will separate. The first set of structures moves upward to ensure that the workpiece body moves forward normally. The second set of structures will run at the same time and in the opposite direction. The second clamping plate will move downward to clamp the main shaft. The second driving wheel moves downward and engages with the driven wheel to drive the main shaft to rotate.

[0022] S4: As the workpiece body continues to move forward, the second infrared sensor will sense it and restart the above two sets of structures to return it to its original position. Once the workpiece body returns to its original position, the second set of structures will lift up, allowing the workpiece body to move forward normally. When it reaches the third and fourth sets of structures, the operation is the same as above. The third and fourth infrared sensors are required to cooperate, as well as the drive motor and wide gear on the other side. This allows the equipment to continuously feed and grind without stopping, improving the efficiency of the grinding operation.

[0023] S5: As the workpiece body feeds through the above structure, grinding also begins. The workpiece body will pass through three grinding points mounted on the surface of the spindle in sequence. The spindle drives the grinding points to rotate, and under the action of centrifugal force, the expanding grinding block will be rotated and thrown out along the crossbar mounted on the mounting plate. When not in use, the small spring will use tension to reset the expanding grinding block. When the grinding part enters the workpiece body, the shaping plate will use the shaping cone hole to adjust the expansion range of the expanding grinding block and enter the shaft hole, so that the expanding grinding block fits the shaft hole for grinding. This can make the overall grinding effect better and help improve the workpiece qualification rate.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. By combining the expansion unit and the adjustment unit, this invention can achieve the purpose of adapting to hole diameter and continuous grinding. During grinding, the grinding block can deform and expand to adapt to shaft holes of different diameters. At the same time, it can enable the equipment to continuously grind shaft holes, thereby meeting the requirements of different hole diameters and improving the grinding effect. It can also improve the overall grinding efficiency and make the overall grinding operation more stable and efficient.

[0026] 2. By setting up a grinding auxiliary mechanism, the present invention can catalyze the burrs. It can perform cold treatment on the hole wall area before grinding, thereby catalyzing the burrs and flash at low temperature, which is beneficial to subsequent grinding. This improves the grinding effect, reduces the wear of the grinding block, shortens the grinding time, and improves the overall work efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0029] Figure 3 This is a cross-sectional schematic diagram of the high-efficiency grinding mechanism of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the adjustment unit of the present invention;

[0031] Figure 5 This is a partial structural schematic diagram of the adjustment unit of the present invention;

[0032] Figure 6 For the present invention Figure 5 Enlarged view of A in the middle;

[0033] Figure 7 This is a left-side view of a partial structure of the adjustment unit of the present invention;

[0034] Figure 8 This is a right-side view of a partial structure of the adjustment unit of the present invention;

[0035] Figure 9 This is a schematic diagram of the expansion unit of the present invention;

[0036] Figure 10 This is a partial cross-sectional view of the expansion unit of the present invention;

[0037] Figure 11 This is a partial structural schematic diagram of the expansion unit of the present invention;

[0038] Figure 12 This is a schematic diagram of the grinding auxiliary mechanism of the present invention;

[0039] Figure 13This is a partial structural diagram of the grinding auxiliary mechanism of the present invention.

[0040] In the diagram: 1. Device body; 11. Machine body; 12. Conveyor belt; 13. Vertical plate; 14. Top frame; 15. Drive motor; 16. Workpiece body; 2. High-efficiency grinding mechanism; 21. Expansion unit; 2101. Main shaft; 2102. Mounting plate; 2103. Crossbar; 2104. Cross cylinder; 2105. Small spring; 2106. Expansion grinding block; 2107. Bearing sleeve; 2108. Shaping plate; 2109. Limiting plate; 2110. Driven wheel; 2111. Long seat plate; 2112. Infrared sensor; 2113. Shaping cone hole; 22. Adjustment unit; 2201. Rotating shaft; 2202. Wide gear; 2203. Gear plate; 2204. Guide rod; 220 5. Top frame; 2206. Tie rod; 2207. Mounting block; 2208. Base plate; 2209. Moving slot plate; 2210. Connecting plate; 2211. Moving frame; 2212. Jacket plate; 2213. Mounting side plate; 2214. Servo motor; 2215. Drive wheel; 2216. V-groove; 2217. Large spring; 2218. Friction pad; 3. Grinding auxiliary mechanism; 301. Housing; 302. Short shaft; 303. Large pulley; 304. Small pulley; 305. Belt; 306. Turntable frame; 307. Auxiliary wheel; 308. Cooling box; 309. Air vent; 310. Fan; 311. Guide plate; 312. Top cover; 313. Condensation assembly. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1: Please refer to Figures 1-13 The present invention provides a technical solution: a grinding device for the inner wall of shaft hole for gearbox production and processing, comprising a device body 1, the device body 1 comprising a machine body 11, a conveyor belt 12 rotatably mounted on the inner wall of the machine body 11, two vertical plates 13 fixedly connected to the surface of the machine body 11, a top frame 14 fixedly connected between the two vertical plates 13, a high-efficiency grinding mechanism 2 provided on the inner wall of the vertical plates 13, and a grinding auxiliary mechanism 3 provided on the surface of the machine body 11;

[0043] The high-efficiency grinding mechanism 2 includes an expansion unit 21, which is disposed on the top of the conveyor belt 12;

[0044] The high-efficiency grinding mechanism 2 also includes an adjustment unit 22, which is located on top of the expansion unit 21 and works in conjunction with the expansion unit 21.

[0045] There are two vertical plates 13, one of which has two drive motors 15 fixedly mounted on its surface, and the surface of the conveyor belt 12 is provided with a workpiece body 16.

[0046] As a further limitation of the present invention, the expansion unit 21 includes a main shaft 2101, which is movably mounted on the top of the conveyor belt 12. The surface of the main shaft 2101 is fixedly fitted with mounting discs 2102. There are three sets of mounting discs 2102, with two mounting discs 2102 in each set. Four crossbars 2103 are fixedly mounted on the surface of every two mounting discs 2102. A cross cylinder 2104 is fixedly connected to the surface of every two mounting discs 2102. An expansion grinding block 2106 is movably fitted on the surface of the crossbar 2103. The inner wall of the expansion grinding block 2106 is movably connected to the surface of the crossbar 2103 through a bearing. Four sets of small springs 2105 are fixedly connected to the surface of the cross cylinder 2104. One end of each small spring 2105 is fixedly connected to the surface of the expansion grinding block 2106.

[0047] A bearing sleeve 2107 is fixedly fitted onto the surface of the main spindle 2101, and a driven wheel 2110 is fixedly fitted onto the surface of the main spindle 2101. There are four bearing sleeves 2107 and four driven wheels 2110. Two long seat plates 2111 are fixedly mounted on the surface of one of the vertical plates 13. Four infrared sensors 2112 are fixedly connected to the front side of each long seat plate 2111. A limit plate 2109 is fixedly connected to the surface of the conveyor belt 12, with one side of the limit plate 2109 fitting against the workpiece body 16. A shaping plate 2108 is fixedly installed on the surface. A shaping cone hole 2113 is opened on one side of the shaping plate 2108. There are two limiting plates 2109 and two shaping plates 2108. By setting the shaping plate 2108 and the shaping cone hole 2113, the two will limit the expansion range of the expanding grinding block 2106 of the grinding point when the grinding point enters the shaft hole, so that it can enter the shaft hole just right. This is conducive to the rational use of the expanding grinding block 2106, can protect the expanding grinding block 2106 from damage, and can also improve the grinding effect by expanding the grinding diameter and limiting the adjustment of the expanded grinding diameter.

[0048] The adjustment unit 22 includes a rotating shaft 2201, which is rotatably mounted on the inner wall of the vertical plate 13. One end of the rotating shaft 2201 passes through to the outer side of one of the vertical plates 13 and is fixedly connected to the output shaft of the drive motor 15. There are two rotating shafts 2201. A wide gear 2202 is fixedly sleeved on the surface of the rotating shaft 2201. A toothed plate 2203 is provided on the surface of the wide gear 2202. There are two sets of toothed plates 2203, with two toothed plates in each set. Each set of toothed plates 2203 meshes with the wide gear 2202. A guide rod 2204 is fixedly connected to the top of the toothed plate 2203. The top of the guide rod 2204 passes through to the outer side of the top frame 14.

[0049] A base plate 2208 is fixedly connected to the surface of the toothed plate 2203. A movable slot plate 2209 is slidably connected to one side of the base plate 2208. A pull rod 2206 is fixedly connected to the top of the movable slot plate 2209. A top frame 2205 is movably sleeved on the surface of the pull rod 2206. The bottom of the top frame 2205 is fixedly connected to the surface of the top frame 14. An mounting block 2207 is fixedly installed on the inner wall of the top frame 2205. One end of the pull rod 2206 extends through to the outside of the mounting block 2207 and is fixedly connected to a large spring 2217. One end of the large spring 2217 is fixedly connected to the inner wall of the top frame 2205. The surface of the pull rod 2206 is slidably connected through the inner wall of the mounting block 2207.

[0050] A V-shaped groove 2216 is provided on one side of the movable slot plate 2209. A series plate 2210 is slidably connected to one side of the base plate 2208. There are four series plates 2210. One end of the four series plates 2210 extends to the inner wall of the V-shaped groove 2216. A movable frame 2211 is fixedly installed on the front side of two series plates 2210. A clamping plate 2212 is fixedly installed on one side of the movable frame 2211. By setting the movable slot plate 2209, during use, its own movement can be achieved by allowing the four series plates 2210 to slide along the V-shaped groove 2216 on the base plate 2208 to clamp or release the main spindle 2101. The clamping or releasing of the main spindle 2101 by the cooperation of the other three can ensure that the main spindle 2101 can keep rotating and grinding with each adjustment. This allows the device to run continuously without stopping and grind, which can improve the overall grinding efficiency.

[0051] A mounting side plate 2213 is fixedly mounted on one side of the substrate 2208. A servo motor 2214 is fixedly mounted on the inner wall of the mounting side plate 2213. One end of the output shaft of the servo motor 2214 extends through to the outer side of the mounting side plate 2213 and is fixedly connected to a drive wheel 2215. The drive wheel 2215 cooperates with the driven wheel 2110. Friction pads 2118 are fixedly mounted on the inner walls of both the drive wheel 2215 and the driven wheel 2110. There are four sets of friction pads 2118. By setting the drive wheel 2215, because it cooperates with the driven wheel 2110, In practice, the driving wheel 2215 and the driven wheel 2110 are interlocked by their grooves. When the driving wheel 2215 rotates, it is driven by friction generated by friction between it and the driven wheel 2110 through friction pads 2118 installed on the inner wall. In addition, when the driving wheel 2215 is driven upward by the substrate 2208, it can be directly separated from the driven wheel 2110. Therefore, the driving wheel 2215 and the driven wheel 2110 can be freely separated and interlocked, so that the entire polishing operation will not be interrupted, thereby improving the overall polishing efficiency.

[0052] By setting the expansion unit 21 and the adjustment unit 22 in combination, the purpose of adapting to the hole diameter and continuous grinding can be achieved. During grinding, the grinding block can deform and expand to adapt to shaft holes of different diameters. At the same time, the equipment can continuously grind shaft holes, thereby meeting the requirements of different hole diameters and improving the grinding effect. It can also improve the overall grinding efficiency and make the overall grinding operation more stable and efficient.

[0053] The specific implementation of this embodiment is as follows: After the workpiece body 16 is cooled, it continues to move forward. Passing the first infrared sensor 2112, the drive motor 15 on one side rotates, driving the wide gear 2202 on the other side to rotate. The rotation of the wide gear 2202 causes the toothed plates 2203 distributed on both sides to move in opposite directions. At this time, the first base plate 2208 is driven by the upward-moving first toothed plate 2203. The upward movement of the first base plate 2208 drives the first clamping plate 2212 upward. During the upward movement, because the elastic force of the first large spring 2217 is greater than the frictional force when the connecting plate 2210 slides inside the V-groove 2216, the first moving groove plate 2209 stops moving, while the first base plate 2208 continues to move... When the first clamping plate 2212 moves upward, the first moving frame 2211 slides inside the V-groove 2216 via the connecting plate 2210 under the action of the lifting force. Simultaneously, the shape of the V-groove 2216 causes the first clamping plate 2212 to separate along the first base plate 2208 to both sides, thus releasing the bearing sleeve 2107 on the main shaft 2101. As it separates, it is pulled upward away from the main shaft 2101. After moving upward a certain distance, the top of the first pull rod 2206 will abut against the first large spring 2217. The elastic force of the first large spring 2217 will not affect the normal upward movement of the first toothed plate 2203 and the first pull rod 2206. The upward movement of the first base plate 2208 will drive the drive wheel 2215 on one side to... The driven wheel 2110 separates. Regarding the relationship between the driving wheel 2215 and the driven wheel 2110, in use, the driving wheel 2215 and the driven wheel 2110 are interlocked through their own grooves, and the friction pads 2118 fixedly installed on their inner walls are also tightly fitted. When the driving wheel 2215 rotates, it will transmit power through the friction generated by the friction pads 2118 with the driven wheel 2110. The first set of structures moves upward to ensure that the workpiece body 16 can move forward normally. The second set of structures will run simultaneously and in the opposite direction. After moving down to a certain position, the top of the second pull rod 2206 will abut against the second mounting block 2207. At this time, the second pull rod 2206 will no longer move and the second moving slot plate 2209 will stop as well. The two substrates 2208 continue to move downwards, driven by the second toothed plate 2203. This causes the connecting plate 2210 and the moving frame 2211 on the surface of the second substrate 2208 to slide closer along the V-groove 2216 on the second moving groove plate 2209. Upon approaching, the second clamping plate 2212 clamps the bearing sleeve 2107 on the main spindle 2101. Simultaneously, the second driving wheel 2215 moves downwards and engages with the driven wheel 2110, causing the main spindle 2101 to rotate. As the workpiece body 16 continues to advance, the second infrared sensor 2112 senses this and reactivates the two sets of structures, returning them to their original positions. The returned second set of structures then lifts, allowing the workpiece body 16 to advance normally. This continues until the third and fourth sets of structures are reached.The operation is the same as described above, requiring the cooperation of the third and fourth infrared sensors 2112, as well as the drive motor 15 and wide gear 2202 on the other side. This allows the equipment to continuously feed and grind without stopping, improving the efficiency of the grinding operation. Grinding begins simultaneously as the workpiece body 16 feeds through the aforementioned structure. The workpiece body 16 will sequentially pass through three grinding points mounted on the surface of the spindle 2101. The spindle 2101 drives the mounting plate 2102 of the grinding points to rotate, and under the action of centrifugal force, the expansion... The expanding grinding block 2106 is rotated and thrown out along the crossbar 2103 mounted on the mounting plate 2102, expanding the grinding range. The small spring 2105, when not in use, uses tension to reset the expanding grinding block 2106. The shaping plate 2108, using the shaping cone hole 2113, adjusts the expansion range of the expanding grinding block 2106 and its entry into the shaft hole when the grinding part enters the workpiece body 16, ensuring the expanding grinding block 2106 fits precisely against the shaft hole for grinding. This improves the overall grinding effect and increases the workpiece qualification rate.

[0054] Example 2: Please refer to Figures 1-13 The present invention provides a technical solution: a grinding device for the inner wall of shaft holes used in gearbox production and processing. The present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0055] As a further limitation of the present invention, the grinding auxiliary mechanism 3 includes a housing 301, which is fixedly installed on the surface of the body 11. A short shaft 302 is rotatably mounted on the inner wall of the housing 301. The surface of the short shaft 302 is movably connected to the inner wall of the housing 301 via a bearing. A turntable frame 306 is fixedly sleeved on the surface of the short shaft 302. There are two turntable frames 306. Auxiliary wheels 307 are rotatably mounted on the surface of the turntable frames 306. There are two sets of auxiliary wheels 307, with six auxiliary wheels in each set. A large pulley 303 is fixedly sleeved on the surface of the short shaft 302. A small pulley 304 is provided at the top of the 3, and a belt 305 is fitted on the surface of the large pulley 303. The belt 305 is fitted on the surface of the large pulley 303 and the small pulley 304. By setting the large pulley 303 and the small pulley 304, when running, the large pulley 303 drives the small pulley 304 to rotate through the belt 305. Under the action of the gear size difference, the small pulley 304 rotates quickly, driving the fan 310 to concentrate and guide the air, which can improve the cold treatment effect of this mechanism. The brittle flash burrs are beneficial to the subsequent grinding process, which can reduce the wear of the grinding block, and at the same time further improve the overall grinding effect.

[0056] A cooling box 308 is fixedly installed on the top of the outer casing 301. An air duct 309 is fixedly connected to the bottom of the cooling box 308. One end of the air duct 309 extends into the inner cavity of the outer casing 301. There are two air ducts 309. A guide plate 311 is fixedly installed on the inner wall of the cooling box 308. A top cover 312 is fixedly connected to the top of the cooling box 308. A condenser assembly 313 is fixedly installed on the inner wall of the top cover 312. One side of the condenser assembly 313 extends into the inner cavity of the cooling box 308. A fan 310 is fixedly installed on the inner wall of the cooling box 308. The surface of the fan 310 is fixedly connected to one side of the small pulley 304.

[0057] By setting up the grinding auxiliary mechanism 3, the burr can be catalyzed. The hole wall area can be cold-treated before grinding, which will catalyze the burrs and flash at low temperature, which is beneficial to subsequent grinding. This will improve the grinding effect, reduce the wear of the grinding block and shorten the grinding time, thus improving the overall work efficiency.

[0058] The specific implementation method of this embodiment is as follows: First, the device body 1 is debugged. Then, relying on the limiting plate 2109 and the shaping plate 2108, the workpiece body 16 is placed on the conveyor belt 12 between them. According to the operating rules summarized from the debugging of the device body 1, three gaps need to be left between every two workpiece bodies 16 to ensure that the device body 1 can operate smoothly. Then, the machine body 11 is started by external control switch and power supply to start the grinding operation. After the machine body 11 is started, the workpiece body 16 on its top is fed through the conveyor belt 12. First, the grinding auxiliary mechanism 3 will be processed. Note that the condensation component 313 needs to be started for pre-cooling when the device body 1 is started and debugged. When the workpiece body 16 is moved from the top of the machine body 11, the grinding auxiliary mechanism 3 will be used first. Note that the condensation component 313 needs to be started for pre-cooling when the device body 1 is started and debugged. When the bottom of the grinding auxiliary mechanism 3 passes by, the auxiliary wheel 307 is in contact with the top surface of the workpiece body 16. The continuous feed force causes the auxiliary wheel 307 to cause the turntable frame 306 to rotate, which in turn drives the large pulley 303 to rotate through the short shaft 302. The large pulley 303 drives the small pulley 304 on the cooling box 308 to rotate through the belt 305. The small pulley 304 drives the fan 310 to rotate. Under the action of the fan 310, the outside air is brought into the cooling box 308. After being cooled by the pre-cooled condenser component 313, the air flow becomes faster under the action of the fan 310. The cooled gas will be concentrated by the guide plate 311 and then quickly guided to the vicinity of the shaft hole from the air cylinder 309 to achieve cooling of the shaft hole.

[0059] A grinding method for a shaft hole inner wall grinding device used in gearbox manufacturing includes the following steps:

[0060] S1: First, debug the device body 1. Then, relying on the limiting plate 2109 and the shaping plate 2108, place the workpiece body 16 on the conveyor belt 12 between them. According to the operating rules summarized from the debugging of the device body 1, three empty spaces need to be left between every two workpiece bodies 16 to ensure that the device body 1 can run smoothly. Then, start the machine body 11 through the external controller or power supply to start the grinding operation.

[0061] S2: After the machine body 11 is started, the workpiece body 16 on its top is fed by the conveyor belt 12. First, it will be processed by the grinding auxiliary mechanism 3. Note that the condenser assembly 313 needs to be pre-cooled when the machine body 1 is started. When the workpiece body 16 passes the bottom of the grinding auxiliary mechanism 3, the auxiliary wheel 307 is in contact with the top surface of the workpiece body 16. The continuous feeding directional force makes the auxiliary wheel 307 rotate the turntable frame 306, which in turn drives the large pulley 303 to rotate through the short shaft 302. The large pulley 303 drives the small pulley 304 on the cooling box 308 to rotate through the belt 305. The small pulley 304 drives the fan 310 to rotate. Under the action of the fan 310, the outside air is brought into the pre-cooled condenser assembly 313 and cooled. Then, it is concentrated and quickly guided to the vicinity of the shaft hole from the air cylinder 309 to achieve shaft hole cooling.

[0062] S3: After the workpiece body 16 is cooled, it continues to move forward. When it passes the first infrared sensor 2112, the drive motor 15 on one side will rotate, which will drive the wide gear 2202 on one side to rotate. The rotation of the wide gear 2202 on one side will cause the toothed plates 2203 distributed on both sides to move in opposite directions. At this time, the first clamping plate 2212 on the first base plate 2208 will release the main shaft 2101 and move upward. The driving wheel 2215 on one side of the first base plate 2208 will separate from the driven wheel 2110. The first set of structures moves upward to ensure that the workpiece body 16 moves forward normally. The second set of structures will run at the same time and in the opposite direction. The second clamping plate 2212 will move downward to clamp the main shaft 2101. The second driving wheel 2215 moves downward and cooperates with the driven wheel 2110 to drive the main shaft 2101 to rotate.

[0063] S4: As the workpiece body 16 continues to move forward, the second infrared sensor 2112 will sense it and restart the above two sets of structures to return it to its original position. The second set of structures that has returned to its original position will lift up, allowing the workpiece body 16 to move forward normally. When it reaches the third and fourth sets of structures, the operation is the same as above. The third and fourth infrared sensors 2112 are required to cooperate, as are the drive motor 15 and wide gear 2202 on the other side. This allows the equipment to continuously feed and grind without stopping, improving the efficiency of the grinding operation.

[0064] S5: When the workpiece body 16 feeds through the above structure, grinding also begins. The workpiece body 16 will pass through the three grinding points installed on the surface of the spindle 2101 in sequence. The spindle 2101 drives the grinding points to rotate. Under the action of centrifugal force, the expanding grinding block 2106 will be rotated and thrown out along the crossbar 2103 installed on the mounting plate 2102. The small spring 2105 will return the expanding grinding block 2106 to its original position by pulling force when not in use. When the grinding part enters the workpiece body 16, the shaping plate 2108 will adjust the expansion range of the expanding grinding block 2106 by using the shaping cone hole 2113 and enter the shaft hole, so that the expanding grinding block 2106 fits the shaft hole for grinding. This can make the overall grinding effect better and help improve the workpiece qualification rate.

[0065] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0066] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding device for the inner wall of a shaft hole used in gearbox manufacturing, comprising a device body (1), characterized in that: The device body (1) includes a body (11), a conveyor belt (12) is rotatably mounted on the inner wall of the body (11), two vertical plates (13) are fixedly connected to the surface of the body (11), a top frame (14) is fixedly connected between the two vertical plates (13), a high-efficiency grinding mechanism (2) is provided on the inner wall of the vertical plates (13), and a grinding auxiliary mechanism (3) is provided on the surface of the body (11). The high-efficiency grinding mechanism (2) includes an expansion unit (21), which is located on the top of the conveyor belt (12). The expansion unit (21) includes a main shaft (2101), which is movably installed on the top of the conveyor belt (12). A bearing sleeve (2107) is fixedly sleeved on the surface of the main shaft (2101), and a driven wheel (2110) is fixedly sleeved on the surface of the main shaft (2101). There are four bearing sleeves (2107) and four driven wheels (2110). The high-efficiency grinding mechanism (2) also includes an adjustment unit (22), which is located on top of the expansion unit (21). The adjustment unit (22) works in conjunction with the expansion unit (21). The adjustment unit (22) includes a rotating shaft (2201), which is rotatably mounted on the inner wall of the vertical plate (13). One end of the rotating shaft (2201) extends through to the outer side of one of the vertical plates (13) and is fixedly connected to the output shaft of the drive motor (15). There are two rotating shafts (2201). A wide gear (2202) is fixedly sleeved on the surface of the rotating shaft (2201). A toothed plate (2203) is provided on the surface of the wide gear (2202). There are two sets of gear plates (2203) in each set. Each set of gear plates (2203) meshes with a wide gear (2202). A guide rod (2204) is fixedly connected to the top of the gear plate (2203). The top of the guide rod (2204) extends to the outside of the top frame (14). A base plate (2208) is fixedly connected to the surface of the gear plate (2203). A movable slot plate (2209) is slidably connected to one side of the base plate (2208). A pull rod (2206) is fixedly connected to the top of the movable slot plate (2209). A top frame (2205) is movably fitted onto the surface of the pull rod (2206). The bottom of the top frame (2205) is fixedly connected to the surface of the top frame (14). An mounting block (2207) is fixedly installed on the inner wall of (2205). One end of the pull rod (2206) extends through to the outside of the mounting block (2207) and is fixedly connected to a large spring (2217). One end of the large spring (2217) is fixedly connected to the inner wall of the top frame (2205). The surface of the pull rod (2206) is slidably connected to the inner wall of the mounting block (2207). A V-shaped groove (2216) is opened on one side of the movable slot plate (2209). A connecting plate (2210) is slidably connected to one side of the base plate (2208). There are four connecting plates (2210). One end of the four connecting plates (2210) extends to the inner wall of the V-shaped groove (2216). Two of the connecting plates (2209) are connected to the inner wall of the top frame (2205). A movable frame (2211) is fixedly installed on the front side of the base plate (2208). A jacket plate (2212) is fixedly installed on one side of the movable frame (2211). A mounting side plate (2213) is fixedly installed on one side of the base plate (2208). A servo motor (2214) is fixedly installed on the inner wall of the mounting side plate (2213). One end of the output shaft of the servo motor (2214) passes through to the outside of the mounting side plate (2213) and is fixedly connected to a drive wheel (2215). The drive wheel (2215) works in conjunction with the driven wheel (2110). Friction pads (2118) are fixedly installed on the inner walls of both the drive wheel (2215) and the driven wheel (2110). There are four sets of friction pads (2118). There are two vertical plates (13), one of which has two drive motors (15) fixedly installed on its surface, and the surface of the conveyor belt (12) is provided with a workpiece body (16).

2. The grinding device for the inner wall of the shaft hole in gearbox manufacturing according to claim 1, characterized in that: The main shaft (2101) is fixedly fitted with mounting discs (2102). There are three sets of mounting discs (2102), with two mounting discs (2102) in each set. Four crossbars (2103) are fixedly installed on the surface of each pair of mounting discs (2102). A cross cylinder (2104) is fixedly connected to the surface of each pair of mounting discs (2102). An expansion grinding block (2106) is movably fitted on the surface of the crossbar (2103). The inner wall of the expansion grinding block (2106) is movably connected to the surface of the crossbar (2103) through a bearing. Four sets of small springs (2105) are fixedly connected to the surface of the cross cylinder (2104). One end of the small spring (2105) is fixedly connected to the surface of the expansion grinding block (2106).

3. The grinding device for the inner wall of the shaft hole in gearbox manufacturing according to claim 2, characterized in that: One of the vertical plates (13) is fixedly mounted with a long seat plate (2111), and there are two long seat plates (2111). An infrared sensor (2112) is fixedly connected to the front side of the long seat plate (2111), and there are four infrared sensors (2112). A limiting plate (2109) is fixedly connected to the surface of the conveyor belt (12). One side of the limiting plate (2109) is in contact with the workpiece body (16). A shaping plate (2108) is fixedly mounted on the surface of the conveyor belt (12). A shaping cone hole (2113) is opened on one side of the shaping plate (2108). There are two limiting plates (2109) and two shaping plates (2108).

4. The grinding device for the inner wall of the shaft hole in gearbox manufacturing according to claim 3, characterized in that: The grinding auxiliary mechanism (3) includes a housing (301), which is fixedly installed on the surface of the machine body (11). A short shaft (302) is rotatably installed on the inner wall of the housing (301). The surface of the short shaft (302) is movably connected to the inner wall of the housing (301) through a bearing. A turntable frame (306) is fixedly sleeved on the surface of the short shaft (302). There are two turntable frames (306). An auxiliary wheel (307) is rotatably installed on the surface of the turntable frame (306). There are two sets of auxiliary wheels (307), and each set has six auxiliary wheels (307). A large pulley (303) is fixedly sleeved on the surface of the short shaft (302). A small pulley (304) is provided on the top of the large pulley (303). A belt (305) is sleeved on the surface of the large pulley (303). The belt (305) is sleeved on the surface of the large pulley (303) and the small pulley (304).

5. A grinding device for the inner wall of a shaft hole used in gearbox manufacturing, as described in claim 4, characterized in that: A refrigeration box (308) is fixedly installed on the top of the outer shell (301). An air duct (309) is fixedly connected to the bottom of the refrigeration box (308). One end of the air duct (309) extends into the inner cavity of the outer shell (301). There are two air ducts (309). A baffle plate (311) is fixedly installed on the inner wall of the refrigeration box (308). A top cover (312) is fixedly connected to the top of the refrigeration box (308). A condenser assembly (313) is fixedly installed on the inner wall of the top cover (312). One side of the condenser assembly (313) extends into the inner cavity of the refrigeration box (308). A fan (310) is fixedly installed on the inner wall of the refrigeration box (308). The surface of the fan (310) is fixedly connected to one side of a small pulley (304).

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