Gear inner hole grinding device and grinding method thereof

Abstract

The invention provides a gear inner hole grinding device and a grinding method thereof, and belongs to the technical field of gear inner hole grinding. Comprising a grinding mechanism and a gear, and the grinding mechanism comprises a mounting frame and a double-rod air cylinder; a clamping assembly used for fixing the gear and polishing one side face of the gear is installed between the two lugs of the installation frame. According to the gear grinding device, by arranging the clamping assembly, gears with different diameters can be clamped in a matched mode conveniently, the tedious clamping process is avoided, operation is easy and convenient, meanwhile, the gear grinding device can be matched with one side walls of the gears with different sizes for grinding, and certain operation procedures of operators are reduced; according to the gear grinding device, inner holes of gears with different inner hole diameters can be matched for grinding, the other side wall of each gear can be conveniently ground, the gears and the grinding device can be accurately and rapidly cooled, a grinding head is prevented from being replaced when the inner holes of the gears with the different inner hole diameters are ground, certain operation procedures of operators are reduced, and meanwhile waste of cooling liquid is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of gear inner hole grinding, and in particular to a gear inner hole grinding device and a grinding method thereof. Background Art

[0002] The existing gear inner hole grinding device is required to be used when grinding its inner hole. The gear inner hole grinding device needs to be positioned when grinding the gear inner hole. The clamping and positioning components on the gear inner hole grinding device usually have a three-jaw chuck or a cylinder push for clamping. However, in actual use, when a three-jaw chuck is used to clamp the gear for inner hole grinding, the operator is required to repeatedly clamp and release the clamping operation. When a cylinder is used to push its contact clamping, the gear is first put on the grinding head, and the cylinder is used to push it against the baffle for clamping. If there is a certain gap between the outer diameter of the grinding head and the inner hole of the gear, the inner hole of the gear will be hung on the grinding head, causing the gap between the inner hole of the gear and the grinding head not in contact to be further enlarged, resulting in uneven grinding of the inner hole of the gear during the grinding process, and even damage to the inner hole of the gear. If hand-held operation is used during the clamping process, there is a certain risk for the operator.

[0003] At the same time, when grinding the inner aperture of gears with different apertures, the grinding head needs to be replaced frequently, and the matching grinding head needs to be replaced, which makes the operation process more cumbersome. Moreover, after grinding the inner hole of the gear, its outer wall needs to be ground, which requires additional tools and operation procedures, making the operation process cumbersome. In addition, the coolant cannot be effectively cooled at the place where cooling is required during cooling, resulting in a large amount of coolant waste. Therefore, the present application provides a gear inner hole grinding device and a grinding method thereof to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a gear inner hole grinding device and a grinding method thereof to solve the problem that the existing gear inner hole grinding device needs to be positioned when grinding the gear inner hole. The clamping and positioning components on the gear inner hole grinding device usually have a three-jaw chuck or a cylinder push for clamping. However, in actual use, when a three-jaw chuck is used to clamp the gear for inner hole grinding, the operator is required to repeatedly clamp and release the clamping operation. When a cylinder is used to push the abutment clamping, the gear is first put on the grinding head, and the cylinder is used to push it against the baffle for clamping. If there is a certain gap between the outer diameter of the grinding head and the inner hole of the gear, it will cause the inner hole of the gear to get hung. On the grinding head, the gap between the inner hole of the gear and the place where the grinding head does not contact is further enlarged, which will cause uneven grinding of the inner hole of the gear during the grinding process, and even damage the inner hole of the gear. If the clamping process is operated by hand, it is dangerous for the operator. At the same time, when grinding the inner hole of the gear with different apertures, the grinding head needs to be replaced frequently, and the operation process is more complicated. Moreover, after grinding the inner hole of the gear, its outer wall needs to be polished, which requires additional tools and operation procedures, making the operation process complicated. In addition, the coolant cannot be effectively cooled at the place where cooling is needed, resulting in a large amount of waste of coolant.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A gear inner hole grinding device and a grinding method thereof, comprising a grinding mechanism and a gear, the grinding mechanism comprising a mounting frame and a double-rod cylinder; a clamping assembly for fixing the gear and grinding one side thereof is installed between the two ears of the mounting frame, and a grinding assembly for grinding the gear inner hole and the other side thereof is provided between the clamping assembly and the double-rod cylinder; the clamping assembly comprises a U-shaped frame fixedly connected between the two ears of the mounting frame by bolts, a clamping component is provided on the U-shaped frame, and a side wall grinding unit is provided between the clamping component and the U-shaped frame; the grinding assembly comprises an L-shaped fixing plate fixedly connected to the telescopic end of the double-rod cylinder, a motor is installed on the L-shaped fixing plate, a side wall grinding component and a grinding unit are installed on the output shaft of the motor, the grinding unit is located in the side wall grinding component and inserted into the gear inner hole, the side wall grinding component fits the side wall of the gear, and the side wall grinding component contacts the side wall grinding unit.

[0007] Optionally, the clamping component includes a fixing ring fixedly connected to the side wall of the U-shaped frame, the inner cavity of the fixing ring is connected to a through hole opened on the side wall of the fixing ring, the inner side wall of the fixing ring is fixedly connected to a plurality of groups of connecting plates distributed in a circular array, one end of each group of connecting plates is commonly fixedly connected to an arc plate, one side wall of the arc plate is fixedly connected to a group of latch teeth, and the latch teeth are meshingly connected to the gear.

[0008] Optionally, the side wall grinding unit includes an arc-shaped slide groove opened on the side wall of the arc plate, the arc-shaped slide groove is arranged close to one side of the U-shaped frame, an arc-shaped sliding sleeve is slidably connected in the U-shaped frame, an adjacent pair of arc-shaped sliding sleeves are slidably connected in common with an arc-shaped sliding rod, an adjacent pair of arc-shaped sliding rods are fixedly connected at one end close to each other with a limiting circular block, an adjacent pair of limiting circular blocks are fixedly connected with an arc spring located between the arc-shaped sliding sleeves, one of the arc-shaped sliding rods is fixedly connected with a first grinding strip that fits the gear, and the first grinding strip is in contact with the grinding assembly.

[0009] Optionally, the connecting piece, the latch teeth and the first grinding strip are all made of elastic material, the connecting piece is arranged in a wave shape, the latch teeth are arranged in a bent shape, and the plurality of arc-shaped plates form an annular installation cavity.

[0010] Optionally, the side wall grinding component includes a fixed sleeve fixedly connected to the output shaft of the motor, a protective cover is fixedly connected to the fixed sleeve, a plurality of fixed plates distributed in a circular array are fixedly connected to the protective cover, a group of second grinding strips are fixedly connected to one side wall of the fixed plate, and the second grinding strips are in contact with the gear.

[0011] Optionally, the grinding unit includes a fixed sleeve fixedly sleeved on the output shaft of the motor, a plurality of groups of connecting plates distributed in a circular arrangement are fixedly connected to the outer wall of the fixed sleeve, each group of connecting plates is commonly fixedly connected to an arc-shaped reinforcing plate, a grinding brush and a grinding plate are fixedly connected to the outer wall of the arc-shaped reinforcing plate, a socket is provided at one end of the arc-shaped reinforcing plate, a water outlet nozzle is fixedly connected in the socket, the water outlet nozzle is a three-way water outlet nozzle, one of the nozzle openings is located at the connection between the fixed sleeve and the output shaft of the motor, and the other nozzle opening is located between the grinding brush and the gear.

[0012] Optionally, the connecting plate is made of elastic material and is arranged in an arc shape, and the grinding brush and one end of the grinding plate are both provided with a bevel.

[0013] Optionally, a discharge hole is provided on the fixing ring, the diameter of the through hole is smaller than the inner hole diameter of the fixing ring, and the fixing ring is arranged close to one side of the double-rod cylinder.

[0014] Optionally, an abrasive layer is provided on the outer side wall of the latching tooth.

[0015] The present application also provides a gear inner hole grinding device grinding method, comprising the following steps:

[0016] S1. First place the gear into the annular mounting cavity and align the tooth mouth of the gear with the latch tooth. When placing the gear, the latch tooth will be squeezed and deformed, and the arc plate will also move during the squeezing process, which will cause the connecting piece to deform during the squeezing, and drive the arc sleeve to move, and further cause the arc slide rod to move outward from the arc sleeve, and the arc spring will be stretched in the arc sleeve, and will also drive the first grinding strip to move. When the gear fits with the first grinding strip, stop placing the gear, and the rebound of the connecting piece will drive the arc plate and the latch tooth to rebound, and the latch tooth will conflict with the tooth mouth of the gear, which will cause the gear to be tightened and limited.

[0017] S2. Secondly, start the L-shaped fixing plate and make it work, and start the double-rod cylinder to make it work. The operation of the double-rod cylinder will cause its telescopic end to drive the L-shaped fixing plate to move, and at the same time, the motor, side wall grinding component and grinding unit will move. During the movement of the side wall grinding component, the arc-shaped reinforcing plate, connecting plate, fixed sleeve and grinding plate will move toward the inner hole of the gear. In the process, the beveled end of the grinding plate will enter the inner hole of the gear. When the grinding plate enters the inner hole of the gear, it will be squeezed, which will cause the arc-shaped reinforcing plate and the connecting plate to be subjected to force, and the connecting plate will be deformed under the force. When the grinding plate enters the inner hole of the gear and passes through the through hole, the grinding brush and the grinding plate will conflict with the inner hole of the gear. At the same time, the second grinding bar will contact the gear. When the second grinding bar conflicts with the gear, the fixed sleeve and the grinding plate will be The deformation of the fixed plate will further cause the second grinding strip to spread on the surface of the gear, and will also cause the first grinding strip to contact one of the arc-shaped reinforcement plates, causing the first grinding strip to deform during the extrusion process. At the same time, the operation of the L-shaped fixed plate will cause its output shaft to rotate, and the output shaft will drive the fixed sleeve to rotate, and the fixed sleeve will drive the connecting plate, the arc-shaped reinforcement plate, the grinding brush, the grinding plate and the water outlet nozzle to rotate, and the grinding plate and the grinding brush will perform double grinding on the inner hole of the gear. During the process, the rotation of the arc-shaped reinforcement plate will drive the first grinding strip to rotate, and under the action of the limiting circle and the arc spring, the arc-shaped sliding sleeve will be pushed to move, thereby causing the first grinding strip to grind the side wall of the gear. Here, the output shaft of the L-shaped fixed plate will drive the fixed sleeve, the protective cover, the fixed plate and the second grinding strip to rotate, and then grind the other side wall of the gear.

[0018] S3. When the external liquid supply device injects coolant through the external pipe, it will be injected into the water outlet nozzle, and the liquid will be sprayed out through the other two ports of the water outlet nozzle. One of them can cool the joint between the fixed sleeve and the L-shaped fixed plate, and the other can cool the inner hole of the grinding plate and the gear. The used coolant will fall into the collection box for collection, and some of the coolant dripping into the fixed ring will flow into the collection box through the discharge hole for collection.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] In the above scheme, by setting up a clamping assembly, gears of different diameters can be easily adapted and clamped, avoiding the cumbersome clamping process, and the operation is simple and convenient. At the same time, one side wall of gears of different sizes can be adapted for grinding, reducing a certain amount of operating procedures for operators.

[0021] By setting up a grinding component, the inner holes of gears with different inner hole diameters can be adapted for grinding, the other side wall of the gear can be conveniently ground, the gear and the grinding device can be accurately and quickly cooled, and the replacement of the grinding head when grinding the inner holes of gears with different inner hole diameters can be avoided, which reduces certain operating procedures for operators and also avoids the waste of coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of a gear inner hole grinding device and a grinding method thereof;

[0024] Figure 2 for Figure 1 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0025] Figure 3 for Figure 1 A schematic diagram of a second perspective stereoscopic structure;

[0026] Figure 4 for Figure 3 The enlarged structural diagram at B in the middle;

[0027] Figure 5 for Figure 3 A cross-sectional, stereoscopic, enlarged structural schematic diagram of a 3D image;

[0028] Figure 6 for Figure 5 The enlarged structural diagram at C in the middle;

[0029] Figure 7It is a schematic diagram of a partially cutaway three-dimensional structure of a clamping assembly;

[0030] Figure 8 It is an enlarged three-dimensional structural schematic diagram of the grinding unit;

[0031] Fig. 9 This is an enlarged three-dimensional structural diagram of the side wall grinding parts.

[0032] Reference numerals:

[0033] 1. Grinding mechanism; 11. Mounting platform; 12. Double-rod cylinder; 13. Guide rod; 14. Mounting frame; 15. Collection box; 2. Clamping assembly; 21. U-shaped frame; 22. Clamping component; 221. Fixing ring; 222. Connecting piece; 223. Arc plate; 224. Clamping teeth; 23. Side wall grinding unit; 231. Arc slide; 232. Arc sleeve; 233. Arc slide rod; 234. Arc spring; 23 5. First grinding strip; 3. Grinding assembly; 31. L-shaped fixing plate; 32. Motor; 33. Side wall grinding component; 331. Fixing sleeve; 332. Protective cover; 333. Fixing plate; 334. Second grinding strip; 34. Grinding unit; 341. Arc reinforcing plate; 342. Connecting plate; 343. Fixing sleeve; 344. Grinding brush; 345. Grinding plate; 346. Water outlet nozzle; 8. Discharge hole; 9. Gear.

[0034] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0035] The following is a detailed description of a gear inner hole grinding device and a grinding method provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0036] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0037] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0038] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0039] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0040] like Figures 1 to 9 As shown, an embodiment of the present invention provides a gear inner hole grinding device and a grinding method thereof, including a grinding mechanism 1 and a gear 9. The grinding mechanism 1 includes a mounting frame 14 and a double-rod cylinder 12, and also includes a mounting platform 11. A pair of guide rods 13 are fixedly connected to the top of the mounting platform 11, and the telescopic ends of the guide rods 13 are fixedly connected to the mounting frame 14. The double-rod cylinder 12 is located between the pair of guide rods 13 and is fixedly connected to the top of the mounting platform 11. A collection box 15 is installed between the double-rod cylinder 12 and the mounting frame 14. The collection box 15 is provided to facilitate the collection of coolant.

[0041] like Figures 1 to 7 As shown, a clamping assembly 2 for fixing the gear 9 and grinding one side thereof is installed between the two ears of the mounting frame 14, and a grinding assembly 3 for grinding the inner hole of the gear 9 and the other side thereof is provided between the clamping assembly 2 and the double-rod cylinder 12; the clamping assembly 2 includes a U-shaped frame 21 fixedly connected between the two ears of the mounting frame 14 by bolts, a clamping part 22 is provided on the U-shaped frame 21, and a side wall grinding unit 23 is provided between the clamping part 22 and the U-shaped frame 21.

[0042] The clamping component 22 includes a fixing ring 221 fixedly connected to the side wall of the U-shaped frame 21, and a discharge hole 8 is provided on the fixing ring 221. In order to facilitate the flow of coolant and prevent it from being retained in the fixing ring 221, the fixing ring 221 is arranged close to one side of the double-rod cylinder 12. The inner cavity of the fixing ring 221 is connected with a through hole provided on the side wall of the fixing ring 221. The hole diameter of the through hole is smaller than the inner hole diameter of the fixing ring 221. The through hole is provided to facilitate the grinding assembly 3 to pass through the U-shaped frame 21. The aperture size is limited to prevent the gear 9 from moving out of the through hole. The inner side wall of the fixing ring 221 is fixedly connected with a plurality of groups of connecting pieces 222 distributed in a circular array. One end of each group of connecting pieces 222 is fixedly connected to an arc plate 223, and a side wall of the arc plate 223 is fixedly connected to a group of latch teeth 224, which are meshed with the gear 9. The arrangement of the latch teeth 224 is to adapt to the meshing of gears 9 with different tooth pitches. By arranging the connecting pieces 222 and the arc plate 223 and using them in conjunction with the latch teeth 224, the size of the cavity formed between the multiple latch teeth 224 can be adjusted, and further can be adapted to gears 9 of different sizes for use. An abrasive layer is provided on the outer wall of the latch teeth 224. In order to improve the clamping stability of the gear 9, the tooth mouth of the gear 9 can be polished to a certain extent to further facilitate clamping.

[0043] The side wall grinding unit 23 includes an arc-shaped slide groove 231 opened on the side wall of the arc plate 223, and the arc-shaped slide groove 231 is arranged near one side of the U-shaped frame 21. An arc-shaped sliding sleeve 232 is slidably connected in the U-shaped frame 21, and an arc-shaped sliding rod 233 is slidably connected in a pair of adjacent arc-shaped sliding sleeves 232. The ends of the adjacent pair of arc-shaped sliding rods 233 close to each other are fixedly connected to a limited position circular block, and an arc spring 234 located between the arc-shaped sliding sleeves 232 is fixedly connected between the adjacent pair of limited position circular blocks. A first grinding strip 235 that fits the gear 9 is fixedly connected to one of the arc-shaped sliding rods 233. The first The grinding strip 235 is provided to facilitate the grinding of one side wall of the gear 9. The arc-shaped sliding sleeve 232, the arc-shaped sliding rod 233 and the arc-shaped spring 234 are provided to assist the use of the first grinding strip 235. On the one hand, it is convenient for the first grinding strip 235 to rotate and grind. On the other hand, it is convenient for the first grinding strip 235 to extend outward and can be adapted to the grinding of gears 9 of different sizes. The connecting piece 222, the latch tooth 224 and the first grinding strip 235 are all made of elastic material. The connecting piece 222 is arranged in a wavy shape, the latch tooth 224 is arranged in a bent shape, and a plurality of arc-shaped plates 223 form an annular mounting cavity.

[0044] like Figure 2 , Figure 4 , Figure 6 , Figure 8 and Fig. 9As shown, the grinding assembly 3 includes an L-shaped fixing plate 31 fixedly connected to the telescopic end of the double-rod cylinder 12, a motor 32 is installed on the L-shaped fixing plate 31, a control switch is installed on the L-shaped fixing plate 31, the control switch is electrically connected to the motor 32 through a power line, a side wall grinding component 33 and a grinding unit 34 are installed on the output shaft of the motor 32, the grinding unit 34 is located in the side wall grinding component 33 and is inserted into the inner hole of the gear 9, the side wall grinding component 33 is in contact with the side wall of the gear 9, the side wall grinding component 33 is in contact with the side wall grinding unit 23, and the first grinding strip 235 is in contact with the grinding assembly 3.

[0045] The side wall grinding component 33 includes a fixed sleeve 331 fixedly connected to the output shaft of the motor 32, a protective cover 332 fixedly connected to the fixed sleeve 331, and a plurality of fixed plates 333 distributed in a circular array fixedly connected to the protective cover 332. The fixed plates 333 are made of elastic material. The fixing plates 333 are provided to adapt to gears 9 of different sizes for use, and can also assist in clamping to improve the stability of the gear 9 being clamped. A group of second grinding strips 334 are fixedly connected to one side wall of the fixing plate 333. The second grinding strips 334 are in contact with the gear 9 to facilitate the grinding of one side wall of the gear 9.

[0046] The grinding unit 34 includes a fixed sleeve 343 fixedly sleeved on the output shaft of the motor 32, and a plurality of groups of connecting plates 342 distributed in a circular array are fixedly connected to the outer wall of the fixed sleeve 343, and an arc-shaped reinforcing plate 341 is fixedly connected to each group of connecting plates 342, and a grinding brush 344 and a grinding plate 345 are fixedly connected to the outer wall of the arc-shaped reinforcing plate 341. The grinding brush 344 and the grinding plate 345 are provided to facilitate the grinding of the inner hole of the gear 9. The grinding plate 345 also supports the grinding brush 344 to prevent its deformation. The connection plate 342 and the arc-shaped reinforcing plate 341 are provided to facilitate the adaptation of the grinding brush 344 and the grinding plate 345. The inner holes of gears 9 with different inner hole diameters are ground, a socket is opened at one end of the arc-shaped reinforcing plate 341, a water outlet nozzle 346 is fixedly connected to the socket, the water outlet nozzle 346 is a three-way water outlet pipe, one of the pipe openings is located at the connection between the fixed sleeve 343 and the output shaft of the motor 32, the other pipe opening is located between the grinding brush 344 and the gear 9, and the remaining last pipe opening is connected to the external liquid supply equipment through an external water pipe. The connecting plate 342 is made of elastic material and is arranged in an arc shape. The grinding brush 344 and the grinding plate 345 are both provided with a bevel at one end. The bevel is set to facilitate the grinding brush 344 and the grinding plate 345 to enter the inner hole of the gear 9 to avoid interference.

[0047] The present application also provides a gear inner hole grinding device grinding method, comprising the following steps:

[0048] S1. First, place the gear 9 into the annular mounting cavity, and align the tooth opening of the gear 9 with the latch tooth 224. When placing the gear 9, the latch tooth 224 will be squeezed and deformed, and the arc plate 223 will also move during the squeezing process, thereby causing the connecting piece 222 to deform during the squeezing, and driving the arc sleeve 232 to move, further causing the arc slide rod 233 to move outward from the arc sleeve 232, and causing the arc spring 234 to be elongated in the arc sleeve 232, and also driving the first grinding strip 235 to move. When the gear 9 fits with the first grinding strip 235, stop placing the gear 9, and the rebound of the connecting piece 222 will drive the arc plate 223 and the latch tooth 224 to rebound, and the latch tooth 224 will conflict with the tooth opening of the gear 9, thereby tightening and limiting the gear 9.

[0049] S2. Secondly, start the L-shaped fixing plate 31 and make it work, and start the double-rod cylinder 12 to make it work. The operation of the double-rod cylinder 12 will cause its telescopic end to drive the L-shaped fixing plate 31 to move, and at the same time, the motor 32, the side wall grinding component 33 and the grinding unit 34 will move. During the movement of the side wall grinding component 33, the arc-shaped reinforcing plate 341, the connecting plate 342, the fixing sleeve 343 and the grinding plate 345 will move toward the inner hole of the gear 9, and in the process, the beveled end of the grinding plate 345 will be moved. When the grinding plate 345 enters the inner hole of the gear 9, it will be squeezed, which will cause the arc reinforcing plate 341 and the connecting plate 342 to be stressed, and the connecting plate 342 will be deformed under the stress. When the grinding plate 345 enters the inner hole of the gear 9 and passes through the through hole, the grinding brush 344 and the grinding plate 345 will conflict with the inner hole of the gear 9. At the same time, the second grinding strip 334 will contact the gear 9. When the second grinding strip 334 conflicts with the gear 9, the fixing plate 333 will be deformed. The second grinding strip 334 is further spread on the surface of the gear 9, and the first grinding strip 235 is also brought into contact with one of the arc-shaped reinforcing plates 341, so that the first grinding strip 235 is deformed during the extrusion process. At the same time, the operation of the L-shaped fixing plate 31 causes its output shaft to rotate, and the output shaft drives the fixing sleeve 343 to rotate, and the fixing sleeve 343 drives the connection plate 342, the arc-shaped reinforcing plate 341, the grinding brush 344, the grinding plate 345 and the water outlet nozzle 346 to rotate, and the grinding plate 345 The inner hole of the gear 9 will be double-grinded by the grinding brush 344. During the process, the rotation of the arc reinforcing plate 341 will drive the first grinding strip 235 to rotate, and under the action of the limiting circle and the arc spring 234, the arc sliding sleeve 232 will be pushed to move, so that the first grinding strip 235 will grind the side wall of the gear 9. Here, the output shaft of the L-shaped fixing plate 31 will drive the fixing sleeve 331, the protective cover 332, the fixing plate 333 and the second grinding strip 334 to rotate, and then the other side wall of the gear 9 will be polished.

[0050] S3. When the external liquid supply device injects coolant through the external pipe, it will be injected into the water outlet nozzle 346, and the liquid will be sprayed out through the other two ports of the water outlet nozzle 346, one of which can cool the connection between the fixed sleeve 343 and the L-shaped fixed plate 31, and the other can cool the inner hole of the grinding plate 345 and the gear 9. The used coolant will fall into the collection box 15 for collection, and some of the coolant dripping into the fixed ring 221 will flow into the collection box 15 through the discharge hole 8 for collection.

[0051] The working principle of the technical solution provided by the present invention is as follows:

[0052] First, place the gear 9 into the annular mounting cavity, and align the tooth mouth of the gear 9 with the latch tooth 224. When placing it, the latch tooth 224 will be squeezed and deformed, and the arc plate 223 will also move during the extrusion process, thereby causing the connecting piece 222 to deform during the extrusion, and driving the arc sleeve 232 to move, further causing the arc slide rod 233 to move outward from the arc sleeve 232, and causing the arc spring 234 to be elongated in the arc sleeve 232, and also driving the first grinding strip 235 to move. When the gear 9 is in contact with the first grinding strip 235, stop placing the gear 9, and the rebound of the connecting piece 222 will drive the arc plate 223 and the latch tooth 224 to rebound, and the latch tooth 224 will conflict with the tooth mouth of the gear 9, thereby tightening and limiting the gear 9.

[0053] Secondly, the L-shaped fixing plate 31 is started and made to work, and the double-rod cylinder 12 is started and made to work at the same time. The operation of the double-rod cylinder 12 causes the telescopic end of the double-rod cylinder 12 to drive the L-shaped fixing plate 31 to move, and at the same time causes the motor 32, the side wall grinding component 33 and the grinding unit 34 to move. During the movement of the side wall grinding component 33, the arc-shaped reinforcing plate 341, the connecting plate 342, the fixing sleeve 343 and the grinding plate 345 move toward the inner hole of the gear 9, and during the process, the beveled end of the grinding plate 345 enters When the grinding plate 345 enters the inner hole of the gear 9, it will be squeezed, which will cause the arc reinforcing plate 341 and the connecting plate 342 to be stressed, and the connecting plate 342 will be deformed under the stressed state. When the grinding plate 345 enters the inner hole of the gear 9 and passes through the through hole, the grinding brush 344 and the grinding plate 345 will conflict with the inner hole of the gear 9. At the same time, the second grinding strip 334 will contact the gear 9. When the second grinding strip 334 conflicts with the gear 9, the fixing plate 333 will be deformed. Further, the second grinding strip 334 will be spread on the surface of the gear 9, and the first grinding strip 235 will contact one of the arc-shaped reinforcing plates 341, so that the first grinding strip 235 will be deformed during the extrusion process. At the same time, the operation of the L-shaped fixing plate 31 will cause its output shaft to rotate, and the output shaft will drive the fixing sleeve 343 to rotate, and the fixing sleeve 343 will drive the connection plate 342, the arc-shaped reinforcing plate 341, the grinding brush 344, the grinding plate 345 and the water outlet nozzle 346 to rotate, and the grinding plate 345 and The grinding brush 344 will perform double grinding on the inner hole of the gear 9. During the process, the rotation of the arc-shaped reinforcing plate 341 will drive the first grinding strip 235 to rotate, and under the action of the limiting circle and the arc-shaped spring 234, the arc-shaped sliding sleeve 232 will be pushed to move, so that the first grinding strip 235 will grind the side wall of the gear 9. Here, the output shaft of the L-shaped fixing plate 31 will drive the fixing sleeve 331, the protective cover 332, the fixing plate 333 and the second grinding strip 334 to rotate, and then grind the other side wall of the gear 9.

[0054] When the external liquid supply device injects coolant through the external pipe, it will be injected into the water outlet nozzle 346, and the liquid will be sprayed out through the other two ports of the water outlet nozzle 346, one of which can cool the connection between the fixed sleeve 343 and the L-shaped fixed plate 31, and the other can cool the inner hole of the grinding plate 345 and the gear 9. The used coolant will fall into the collection box 15 for collection, and some of the coolant dripping into the fixed ring 221 will flow into the collection box 15 through the discharge hole 8 for collection.

[0055] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0056] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A gear inner hole grinding device, characterized in that: It comprises a grinding mechanism and a gear, wherein the grinding mechanism comprises a mounting frame and a double-rod cylinder; A clamping assembly for fixing the gear and grinding one side of the gear is installed between the two ears of the mounting frame, and a grinding assembly for grinding the inner hole of the gear and the other side of the gear is provided between the clamping assembly and the double-rod cylinder; The clamping assembly comprises a U-shaped frame fixedly connected between two ears of the mounting frame by bolts, the U-shaped frame is provided with a clamping component, and a side wall grinding unit is provided between the clamping component and the U-shaped frame; The grinding assembly includes an L-shaped fixing plate fixedly connected to the telescopic end of the double-rod cylinder, a motor is installed on the L-shaped fixing plate, a side wall grinding component and a grinding unit are installed on the output shaft of the motor, the grinding unit is located in the side wall grinding component and inserted into the inner hole of the gear, the side wall grinding component is in contact with the side wall of the gear, and the side wall grinding component is in contact with the side wall grinding unit.

2. The gear inner hole grinding device according to claim 1, characterized in that: The clamping component includes a fixing ring fixedly connected to the side wall of the U-shaped frame, the inner cavity of the fixing ring is connected to a through hole opened on the side wall of the fixing ring, the inner side wall of the fixing ring is fixedly connected to a plurality of groups of connecting plates distributed in a circular array, one end of each group of connecting plates is commonly fixedly connected to an arc plate, one side wall of the arc plate is fixedly connected to a group of latch teeth, and the latch teeth are meshingly connected to the gear.

3. The gear inner hole grinding device according to claim 2, characterized in that: The side wall grinding unit includes an arc-shaped slide groove opened on the side wall of the arc plate, and the arc-shaped slide groove is arranged close to one side of the U-shaped frame. An arc-shaped slide sleeve is slidably connected in the U-shaped frame, and an adjacent pair of arc-shaped slide sleeves are slidably connected in common with an arc-shaped slide rod, and an adjacent pair of arc-shaped slide rods are fixedly connected at one end close to each other with a limiting circular block, and an arc spring located between the arc-shaped slide sleeves is fixedly connected between an adjacent pair of limiting circular blocks, and a first grinding strip that fits the gear is fixedly connected to one of the arc-shaped slide rods, and the first grinding strip is in contact with the grinding assembly.

4. The gear inner hole grinding device according to claim 3, characterized in that: The connecting piece, the latch teeth and the first grinding strip are all made of elastic material. The connecting piece is arranged in a wave shape, the latch teeth are arranged in a bent shape, and a plurality of the arc-shaped plates form an annular installation cavity.

5. The gear inner hole grinding device according to claim 3, characterized in that: The side wall grinding component includes a fixed sleeve fixedly connected to the output shaft of the motor, a shield fixedly connected to the fixed sleeve, a plurality of fixed plates distributed in a circular array fixedly connected to the shield, a group of second grinding strips fixedly connected to one side wall of the fixed plate, and the second grinding strips fit the gear.

6. The gear inner hole grinding device according to claim 3, characterized in that: The grinding unit includes a fixed sleeve fixedly sleeved on the output shaft of the motor, a plurality of groups of connecting plates distributed in a circular arrangement are fixedly connected to the outer wall of the fixed sleeve, an arc-shaped reinforcing plate is fixedly connected to each group of connecting plates, a grinding brush and a grinding plate are fixedly connected to the outer wall of the arc-shaped reinforcing plate, a plug hole is provided at one end of the arc-shaped reinforcing plate, a water outlet nozzle is fixedly connected in the plug hole, and the water outlet nozzle is a three-way water outlet nozzle, one of the nozzle openings is located at the connection between the fixed sleeve and the output shaft of the motor, and the other nozzle opening is located between the grinding brush and the gear.

7. The gear inner hole grinding device according to claim 6, characterized in that: The connecting plate is made of elastic material and is arranged in an arc shape. The grinding brush and one end of the grinding plate are both provided with a bevel.

8. The gear inner hole grinding device according to claim 2, characterized in that: The fixing ring is provided with a discharge hole, the diameter of the through hole is smaller than the inner hole diameter of the fixing ring, and the fixing ring is arranged close to one side of the double-rod cylinder.

9. The gear inner hole grinding device according to claim 2, characterized in that: An abrasive layer is arranged on the outer side wall of the latching teeth.

10. The method for grinding the inner hole of a gear according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. First, place the gear into the annular mounting cavity and align the tooth opening of the gear with the latching tooth. When placing the gear, the latching tooth will be squeezed and deformed, and the arc plate will also move during the squeezing process, which will cause the connecting piece to deform during the squeezing process, and drive the arc sleeve to move, and further cause the arc slide bar to move outward from the arc sleeve, and the arc spring will be stretched in the arc sleeve, and the first grinding strip will be driven to move. When the gear fits the first grinding strip, stop placing the gear, and the rebound of the connecting piece will drive the arc plate and the latching tooth to rebound, and the latching tooth will conflict with the tooth opening of the gear, which will cause the gear to be tightened and limited. S2. Secondly, start the L-shaped fixing plate and make it work, and start the double-rod cylinder to make it work. The operation of the double-rod cylinder will cause its telescopic end to drive the L-shaped fixing plate to move, and at the same time, the motor, side wall grinding component and grinding unit will move. During the movement of the side wall grinding component, the arc-shaped reinforcing plate, connecting plate, fixed sleeve and grinding plate will move toward the inner hole of the gear. In the process, the beveled end of the grinding plate will enter the inner hole of the gear. When the grinding plate enters the inner hole of the gear, it will be squeezed, which will cause the arc-shaped reinforcing plate and the connecting plate to be subjected to force, and the connecting plate will be deformed under the force. When the grinding plate enters the inner hole of the gear and passes through the through hole, the grinding brush and the grinding plate will conflict with the inner hole of the gear. At the same time, the second grinding bar will contact the gear. When the second grinding bar conflicts with the gear, the fixed sleeve and the grinding plate will be The deformation of the fixed plate will further cause the second grinding strip to spread on the surface of the gear, and will also cause the first grinding strip to contact one of the arc-shaped reinforcement plates, causing the first grinding strip to deform during the extrusion process. At the same time, the operation of the L-shaped fixed plate will cause its output shaft to rotate, and the output shaft will drive the fixed sleeve to rotate, and the fixed sleeve will drive the connection plate, the arc-shaped reinforcement plate, the grinding brush, the grinding plate and the water outlet nozzle to rotate. The grinding plate and the grinding brush will perform double grinding on the inner hole of the gear. During the process, the rotation of the arc-shaped reinforcement plate will drive the first grinding strip to rotate, and under the action of the limiting round block and the arc spring, the arc-shaped sliding sleeve will be pushed to move, so that the first grinding strip will grind the side wall of the gear. Here, the output shaft of the L-shaped fixed plate will drive the fixed sleeve, the shield, the fixed plate and the second grinding strip to rotate, and then grind the other side wall of the gear. S3. When the external liquid supply device injects coolant through the external pipe, it will be injected into the water outlet nozzle, and the liquid will be sprayed out through the other two ports of the water outlet nozzle. One of them can cool the joint between the fixed sleeve and the L-shaped fixed plate, and the other can cool the inner hole of the grinding plate and the gear. The used coolant will fall into the collection box for collection, and some of the coolant dripping into the fixed ring will flow into the collection box through the discharge hole for collection.

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