Ultra-precision grinding device for water pump shaft parts

Abstract

The water pump shaft part ultra-precision grinding device comprises a machine base and a grinding machine body fixedly installed at the top of the machine base, a first motor is fixedly installed on the inner wall of the left side of the grinding machine body, a first hydraulic cylinder is fixedly installed on the inner wall of the right side of the grinding machine body, and a first shaft base is rotationally installed at the output shaft end of the first hydraulic cylinder. The ultra-precision grinding device is reasonable in design, the fine-grained abrasive particle grinding wheel, the ultra-fine-grained abrasive particle grinding wheel and the superfine-grained abrasive particle grinding wheel are conveniently and sequentially used for carrying out three times of grinding machining on the water pump shaft part by arranging the three abrasive particle grinding wheels with different granularities, and ultra-precision grinding treatment on the water pump shaft part is achieved; the strict requirements for precision indexes such as the surface roughness of the water pump shaft parts are met, the machining precision and the surface quality of the water pump shaft parts are effectively improved, the time spent on replacement of abrasive particle grinding wheels with different granularities after shutdown is greatly shortened, operation is easy and convenient, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding equipment, in particular to an ultra-precision grinding device for water pump shaft parts. Background Art

[0002] Ultra-precision grinding refers to a method in which the machining accuracy reaches less than 0.1μm and the surface roughness is less than 0.025μm. It is a sub-micron machining method. Ultra-precision grinding is a process in which a very fine-grained abrasive wheel is used to perform micro-cutting on the workpiece surface with a very small grinding depth and feed rate under the precise control of a precision grinder. During the machining process, complex friction, cutting and sliding effects are generated between the abrasive and the workpiece surface. By continuously removing tiny layers of material, the required dimensional accuracy and surface quality requirements are gradually achieved. At present, in the process of machining water pump shaft parts, ultra-precision grinding devices are usually used to perform ultra-precision grinding on water pump shaft parts to meet the extremely high requirements for dimensional accuracy of water pump shaft parts.

[0003] In the related art, although the ultra-precision grinding device for water pump shaft parts can meet the basic needs of grinding processing, it is found in actual operation that there are still at least the following defects: in the process of ultra-precision grinding of water pump shaft parts using abrasive wheels, since the ultra-precision grinding of water pump shaft parts cannot be completed in one time, ultra-precision grinding usually requires multiple stages, including semi-finishing grinding, fine grinding and super-finishing grinding, so after each grinding stage of water pump shaft parts, it is necessary to stop the machine, disassemble and replace abrasive wheels of different particle sizes. However, it takes a lot of time to disassemble and replace the abrasive wheels, and the operation is cumbersome and troublesome, which will extend the working time and reduce work efficiency. For this reason, we propose an ultra-precision grinding device for water pump shaft parts to solve the above problems. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides an ultra-precision grinding device for water pump shaft parts, which solves the problem that in the process of ultra-precision grinding of water pump shaft parts, the ultra-precision grinding of water pump shaft parts cannot be completed in one go, and ultra-precision grinding usually requires multiple stages. After each grinding stage of the water pump shaft parts, it is necessary to stop the machine, disassemble and replace abrasive wheels of different particle sizes. However, the disassembly and replacement of the abrasive wheels takes a lot of time, and the operation is cumbersome and troublesome, which will extend the working time and reduce the work efficiency.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an ultra-precision grinding device for water pump shaft parts, comprising a machine base and a grinding bed fixed on the top of the machine base, a motor 1 is fixedly installed on the left inner wall of the grinding bed, a hydraulic cylinder 1 is fixedly installed on the right inner wall of the grinding bed, a shaft seat 1 is rotatably installed on the output shaft end of the hydraulic cylinder 1, a three-jaw chuck is fixedly installed on the left end of the shaft seat 1 and the output shaft end of the motor 1, and the two three-jaw chucks are located on the same horizontal axis, an electric guide rail is fixedly installed on the rear inner wall of the grinding bed, an electric slide is slidably installed on the electric guide rail, a hydraulic cylinder 2 is fixedly installed on the bottom of the electric slide, and a grinding mechanism is arranged on the output shaft end of the hydraulic cylinder 2, and the grinding mechanism is used to perform ultra-precision grinding processing on water pump shaft parts.

[0008] Preferably, the grinding mechanism includes a connecting seat, a shaft seat 2, a rotating shaft, a U-shaped frame, a rotation adjustment component, a locking component, a hollow disc, three connecting shafts, three abrasive grinding wheels and a driving component. The connecting seat is fixedly mounted on the output shaft end of the hydraulic cylinder 2, the shaft seat 2 is fixedly mounted on the left side wall of the connecting seat, the rotating shaft is rotatably mounted on the left side of the shaft seat 2, the U-shaped frame is fixedly mounted on the left end of the rotating shaft, and the hollow disc is fixedly mounted on the left side of the U-shaped frame. The three connecting shafts are all rotatably mounted on the left side of the hollow disc and are distributed in an equidistant ring shape. The right ends of the three connecting shafts extend into the hollow disc. The three abrasive grinding wheels are respectively detachably mounted and fixed on the left ends of the corresponding connecting shafts. The three abrasive grinding wheels are respectively a fine-grained abrasive grinding wheel, an extremely fine-grained abrasive grinding wheel, and an ultra-fine-grained abrasive grinding wheel. The rotation adjustment component and the locking component are both located between the connecting seat and the U-shaped frame. The rotation adjustment component is used to control the rotation of the rotating shaft. The locking component is used to lock the rotating shaft. The driving component is arranged between the U-shaped frame and the hollow disc. The driving component is used to control the simultaneous rotation of the three connecting shafts.

[0009] Preferably, the rotation adjustment assembly includes motor 2, main gear 1 and sub gear 1, motor 2 is fixedly mounted on the left side wall of the connecting seat and is located above the rotating shaft, main gear 1 is fixedly mounted on the output shaft end of motor 2, sub gear 1 is fixedly mounted on the rotating shaft, and sub gear 1 is meshed with main gear 1.

[0010] Preferably, the locking assembly includes a cross beam, an electric telescopic rod and an arc-shaped tooth plate, the cross beam is fixedly mounted on the left side wall of the connecting seat and is located below the rotating shaft, the electric telescopic rod is fixedly mounted on the left end of the cross beam, the arc-shaped tooth plate is fixedly mounted on the output shaft end of the electric telescopic rod, and the arc-shaped tooth plate is meshed with a sub-gear.

[0011] Preferably, the driving assembly includes motor three, main gear two and three sub-gear twos, motor three is fixedly mounted on the right outer wall of the hollow disc through a bracket, the output shaft end of motor three extends into the hollow disc, main gear two is fixedly mounted on the output shaft end of motor three and is located between the three connecting shafts, three sub-gear twos are respectively fixedly mounted on the right ends of the corresponding connecting shafts, and the three sub-gear twos are all meshed with main gear two.

[0012] Preferably, three circular holes are opened on the left side wall of the hollow disc, and the right ends of the three connecting shafts pass through the corresponding circular holes respectively. Bearings are fixedly mounted on the three connecting shafts, and the outer rings of the three bearings are fixedly connected to the inner walls of the corresponding circular holes respectively.

[0013] Preferably, the grinding mechanism also includes a coolant spraying assembly, which includes a water pump, a water suction pipe, a hose, a water box, a water inlet pipe, a water outlet pipe, three nozzles and three solenoid valves. A liquid storage chamber is opened in the connecting seat, and the liquid storage chamber is used to hold coolant. The water pump is fixedly installed on the left side wall of the connecting seat and is located behind the motor 2. The water suction pipe is fixedly connected to the suction end of the water pump, one end of the water suction pipe extends into the liquid storage chamber, the hose is fixedly connected to the discharge end of the water pump, the water box is fixedly installed on the central part of the left inner wall of the hollow disc, the water inlet pipe is fixedly installed on the top of the water box, one end of the water inlet pipe extends into the water box, the other end of the water inlet pipe extends to the outside of the hollow disc and is fixedly connected to one end of the hose, the water outlet pipe is fixedly installed on the central part of the left outer wall of the hollow disc, the right end of the water outlet pipe extends into the water box, the three nozzles are all fixedly installed on the left end of the water outlet pipe and are distributed in an equidistant ring, and the three nozzles correspond one by one to the three abrasive grinding wheels respectively, and the three solenoid valves are fixedly installed on the corresponding nozzles.

[0014] Preferably, an observation port communicating with the liquid storage cavity is provided on the front side wall of the connecting seat, and a transparent glass mirror is fixedly installed in the observation port.

[0015] Preferably, a liquid adding hole communicating with the liquid storage cavity is provided on the right side wall of the connecting seat, and a plug is installed on the inner thread of the liquid adding hole.

[0016] Preferably, a waste collection box is placed on the bottom inner wall of the grinding bed.

[0017] (III) Beneficial effects

[0018] The present invention provides an ultra-precision grinding device for water pump shaft parts. It has the following beneficial effects:

[0019] (1) This ultra-precision grinding device for water pump shaft parts can quickly and stably clamp and position water pump shaft parts of different sizes by using a motor and a hydraulic cylinder in conjunction with two three-jaw chucks, and can control the rotation of the clamped and positioned water pump shaft parts to facilitate subsequent comprehensive ultra-precision grinding of the water pump shaft parts.

[0020] (2) The ultra-precision grinding device for water pump shaft parts utilizes a grinding mechanism composed of a connecting seat, a second shaft seat, a rotating shaft, a U-shaped frame, a rotating adjustment component, a locking component, a hollow disc, three connecting shafts, three abrasive grinding wheels and a driving component. Three abrasive grinding wheels with different grain sizes are arranged to facilitate the use of a fine-grained abrasive grinding wheel, an ultra-fine-grained abrasive grinding wheel and an ultra-fine-grained abrasive grinding wheel to grind the water pump shaft parts three times in sequence, thereby realizing ultra-precision grinding of the water pump shaft parts, meeting the strict requirements on precision indicators such as the surface roughness of the water pump shaft parts, effectively improving the processing accuracy and surface quality of the water pump shaft parts, greatly reducing the time spent on stopping the machine to replace abrasive grinding wheels of different grain sizes, and being simple and convenient to operate, thereby improving work efficiency.

[0021] (3) This ultra-precision grinding device for water pump shaft parts uses a rotary adjustment component to control the rotating shaft to drive the U-shaped frame, the hollow disc and the three abrasive grinding wheels to rotate, so that the abrasive grinding wheel with the required particle size can be selected according to the needs to grind the water pump shaft parts.

[0022] (4) This ultra-precision grinding device for water pump shaft parts can limit the rotation of the secondary gear 1 and the rotating shaft by utilizing a locking assembly to adjust the rotation of the three abrasive grinding wheels, thereby ensuring that the positions of the three abrasive grinding wheels that have been adjusted remain stable and the grinding accuracy of water pump shaft parts is guaranteed.

[0023] (5) This ultra-precision grinding device for water pump shaft parts can control the simultaneous rotation of three abrasive wheels by utilizing a driving assembly, thereby conveniently performing three grinding processes on water pump shaft parts using a fine-grained abrasive wheel, an ultra-fine-grained abrasive wheel, and an ultra-fine-grained abrasive wheel in sequence.

[0024] (6) This ultra-precision grinding device for water pump shaft parts can control the coolant to be sprayed to the corresponding abrasive wheel and the grinding area of ​​the water pump shaft parts during three grinding processes in sequence by using a coolant spraying component. The coolant is used to cool, lubricate and wash away the debris generated by grinding, thereby reducing the wear of the abrasive wheel, preventing the parts from being deformed, burned or other defects due to overheating, and ensuring the stability of the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1is a schematic diagram of a three-dimensional structure of the present invention from a first viewing angle;

[0026] Figure 2 is a schematic diagram of a three-dimensional structure of the present invention from a second viewing angle;

[0027] Figure 3 It is a schematic diagram of the main three-dimensional structure of the grinding mechanism;

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the grinding mechanism from a side view;

[0029] Figure 5 It is a schematic diagram of the main cross-sectional three-dimensional structure of the grinding mechanism.

[0030] In the figure: 1, machine base; 2, grinding bed; 3, motor 1; 4, hydraulic cylinder 1; 5, shaft seat 1; 6, three-jaw chuck; 7, electric guide rail; 8, electric slide seat; 9, hydraulic cylinder 2; 10, grinding mechanism; 1001, connecting seat; 1002, shaft seat 2; 1003, rotating shaft; 1004, U-shaped frame; 1005, motor 2; 1006, main gear 1; 1007, sub gear 1; 1008, crossbeam; 1009, electric telescopic rod; 1010, arc-shaped tooth plate; 1011. Hollow disc; 1012. Connecting shaft; 1013. Abrasive grinding wheel; 1014. Motor three; 1015. Main gear two; 1016. Sub gear two; 1017. Liquid storage chamber; 1018. Water pump; 1019. Water suction pipe; 1020. Hose; 1021. Water box; 1022. Water inlet pipe; 1023. Water outlet pipe; 1024. Nozzle; 1025. Solenoid valve; 1026. Transparent glass mirror; 1027. Plug; 11. Waste collection box. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1-Figure 5As shown, the present invention provides a technical solution: an ultra-precision grinding device for water pump shaft parts, comprising a machine base 1 and a grinding bed 2 fixedly installed on the top of the machine base 1, a motor 3 is fixedly installed on the left inner wall of the grinding bed 2, a hydraulic cylinder 4 is fixedly installed on the right inner wall of the grinding bed 2, a shaft seat 5 is rotatably installed on the output shaft end of the hydraulic cylinder 4, a three-jaw chuck 6 is fixedly installed on the left end of the shaft seat 5 and the output shaft end of the motor 3, and the two three-jaw chucks 6 are located on the same horizontal axis. The motor 3 and the hydraulic cylinder 4 are used in conjunction with the two three-jaw chucks 6 to quickly and stably clamp and position the shaft. The same size of water pump shaft parts can be controlled to rotate the clamped and positioned water pump shaft parts, so as to facilitate the subsequent comprehensive ultra-precision grinding of the water pump shaft parts. An electric guide rail 7 is fixedly installed on the inner wall of the rear side of the grinding bed 2, and an electric slide seat 8 is slidably installed on the electric guide rail 7. A hydraulic cylinder 2 9 is fixedly installed on the bottom of the electric slide seat 8. A grinding mechanism 10 is arranged at the output shaft end of the hydraulic cylinder 2 9. Through the arrangement of the electric guide rail 7, the electric slide seat 8 and the hydraulic cylinder 2 9, the grinding mechanism 10 can be quickly and accurately moved to the processing position, so as to facilitate the ultra-precision grinding of the water pump shaft parts, wherein:

[0033] The grinding mechanism 10 is used for ultra-precision grinding of water pump shaft parts. The grinding mechanism 10 includes a connecting seat 1001, a shaft seat 1002, a rotating shaft 1003, a U-shaped frame 1004, a rotation adjustment component, a locking component, a hollow disc 1011, three connecting shafts 1012, three abrasive grinding wheels 1013 and a driving component. The connecting seat 1001 is fixedly installed on the output shaft end of the hydraulic cylinder 9, the shaft seat 1002 is fixedly installed on the left side wall of the connecting seat 1001, and the rotating shaft 1003 is rotatably installed on the left side of the shaft seat 1002 The U-shaped frame 1004 is fixedly mounted on the left end of the rotating shaft 1003, the hollow disc 1011 is fixedly mounted on the left side of the U-shaped frame 1004, the three connecting shafts 1012 are rotatably mounted on the left side of the hollow disc 1011 and are distributed in an equidistant ring shape, the right ends of the three connecting shafts 1012 extend into the hollow disc 1011, and the three abrasive grinding wheels 1013 are detachably mounted and fixed on the left ends of the corresponding connecting shafts 1012, and the three abrasive grinding wheels 1013 are respectively a fine-grained abrasive grinding wheel, an extremely fine-grained abrasive grinding wheel, and an ultra-fine-grained abrasive grinding wheel. By equipping the abrasive grinding wheels 1013 with three different grain sizes (fine grain size, ultra-fine grain size, and ultra-fine grain size), it is possible to select the abrasive grinding wheels 1013 with appropriate grain sizes in turn to perform ultra-precision grinding on the water pump shaft parts according to the processing requirements of the parts and different processing stages (i.e., first use the fine grain abrasive grinding wheel to perform preliminary grinding on the water pump shaft parts, then use the ultra-fine grain abrasive grinding wheel to perform secondary grinding on the water pump shaft parts, and finally use the ultra-fine grain abrasive grinding wheel to perform tertiary grinding on the water pump shaft parts), thereby meeting the requirements for the surface of the water pump shaft parts. Strict requirements for precision indicators such as surface roughness effectively improve the processing accuracy and surface quality of parts, greatly reduce the time spent on stopping to replace abrasive wheels 1013 of different particle sizes, and improve work efficiency. The rotation adjustment component and the locking component are both located between the connecting seat 1001 and the U-shaped frame 1004. The rotation adjustment component is used to control the rotation of the rotating shaft 1003, and the locking component is used to lock the rotating shaft 1003. The driving component is arranged between the U-shaped frame 1004 and the hollow disc 1011, and the driving component is used to control the simultaneous rotation of the three connecting shafts 1012.

[0034] In this embodiment, the above-mentioned rotation adjustment component includes a motor 2 1005, a main gear 1006 and a sub gear 1007. The motor 2 1005 is fixedly mounted on the left side wall of the connecting seat 1001 and is located above the rotating shaft 1003. The main gear 1006 is fixedly mounted on the output shaft end of the motor 2 1005. The sub gear 1007 is fixedly mounted on the rotating shaft 1003. The sub gear 1007 is meshed with the main gear 1006. The main gear 1006 can be controlled to rotate. The meshing transmission effect between the main gear 1006 and the main gear 1006 can be used to control the rotation of the shaft 1003, so that the shaft 1003 drives the U-shaped frame 1004, the hollow disc 1011 and the three abrasive grinding wheels 1013 to rotate. The abrasive grinding wheels 1013 with the required particle size can be selected according to the needs to grind the shaft parts of the water pump. It should be supplemented that the motor 2 1005 adopts a forward and reverse transformation motor.

[0035] In this embodiment, the locking assembly includes a crossbeam 1008, an electric telescopic rod 1009 and an arc-shaped toothed plate 1010. The crossbeam 1008 is fixedly mounted on the left side wall of the connecting seat 1001 and is located below the rotating shaft 1003. The electric telescopic rod 1009 is fixedly mounted on the left end of the crossbeam 1008. The arc-shaped toothed plate 1010 is fixedly mounted on the output shaft end of the electric telescopic rod 1009. The arc-shaped toothed plate 1010 is meshed with the sub-gear 1007. The arc-shaped toothed plate 1010 can be controlled by utilizing the telescopic characteristics of the electric telescopic rod 1009. 10 is lifted vertically. When the arc-shaped tooth plate 1010 rises and meshes with the sub-gear 1007, the rotation of the sub-gear 1007 can be restricted, that is, the rotation of the rotating shaft 1003 is restricted, so as to ensure that the positions of the three abrasive grinding wheels 1013 adjusted in a stable manner remain unchanged. When the arc-shaped tooth plate 1010 rises and does not mesh with the sub-gear 1007, the restriction on the sub-gear 1007 can be released, so that the rotation of the rotating shaft 1003 can be controlled by using the rotary adjustment component, so as to achieve smooth adjustment of the positions of the three abrasive grinding wheels 1013.

[0036] In this embodiment, the driving assembly includes a motor three 1014, a main gear two 1015 and three sub gear twos 1016. The motor three 1014 is fixedly mounted on the right outer wall of the hollow disc 1011 through a bracket. The output shaft end of the motor three 1014 extends into the hollow disc 1011. The main gear two 1015 is fixedly mounted on the output shaft end of the motor three 1014 and is located between the three connecting shafts 1012. The three sub gear twos 1016 are respectively fixedly mounted on the right ends of the corresponding connecting shafts 1012. The three sub gear twos 1016 are all meshed with the main gear two 1015. The motor three 1014 is used to control the rotation of the main gear two 1015. The meshing transmission effect of the three sub gear twos 1016 and the main gear two 1015 can be used to control the three connecting shafts 1012 to rotate simultaneously, that is, the three abrasive grinding wheels 1013 can rotate simultaneously.

[0037] In this embodiment, three circular holes are opened on the left side wall of the hollow disc 1011, and the right ends of the three connecting shafts 1012 respectively pass through the corresponding circular holes. Bearings are fixedly mounted on the three connecting shafts 1012, and the outer rings of the three bearings are fixedly connected to the inner walls of the corresponding circular holes, respectively, to ensure the stable and smooth rotation of the three connecting shafts 1012.

[0038] In this embodiment, the grinding mechanism 10 also includes a coolant spraying assembly, which includes a water pump 1018, a water suction pipe 1019, a hose 1020, a water box 1021, a water inlet pipe 1022, a water outlet pipe 1023, three nozzles 1024 and three solenoid valves 1025. A liquid storage chamber 1017 is provided in the connecting seat 1001, and the liquid storage chamber 1017 is used to hold the coolant. The water pump 1018 is fixedly installed on the left side wall of the connecting seat 1001 and is located behind the motor 2 1005. The water suction pipe 1019 is fixedly connected to the suction end of the water pump 1018. 19 extends into the liquid storage chamber 1017, the hose 1020 is fixedly connected to the discharge end of the water pump 1018, the water box 1021 is fixedly installed at the center of the left inner wall of the hollow disk 1011, the water inlet pipe 1022 is fixedly installed on the top of the water box 1021, one end of the water inlet pipe 1022 extends into the water box 1021, the other end of the water inlet pipe 1022 extends outside the hollow disk 1011 and is fixedly connected to one end of the hose 1020, the water outlet pipe 1023 is fixedly installed at the center of the left outer wall of the hollow disk 1011, and the right end of the water outlet pipe 1023 extends to the water box In 1021, three nozzles 1024 are fixedly installed at the left end of the outlet pipe 1023 and are distributed in an annular manner with equal spacing, and the three nozzles 1024 correspond to the three abrasive grinding wheels 1013 one by one, and three solenoid valves 1025 are fixedly installed on the corresponding nozzles 1024. The design of the coolant spraying assembly can spray coolant on the surface of the abrasive grinding wheel 1013 and the water pump shaft parts in time during the grinding process, so as to play the role of cooling, lubricating and flushing away the grinding debris. The coordinated work with components such as the solenoid valve 1025 can accurately control the spraying amount and spraying position of the coolant, ensure that the grinding area is always in a good cooling and lubrication state, reduce the wear of the abrasive wheel 1013, extend the service life of the abrasive wheel 1013, and prevent the water pump shaft parts from deformation, burns and other defects due to overheating, thereby improving the stability of the processing quality. By setting three nozzles 1024 and three solenoid valves 1025, the corresponding solenoid valve 1025 can be selected to open according to the abrasive wheel 1013 being used, so that the coolant is sprayed from the corresponding nozzle 1024.

[0039] In this embodiment, an observation port communicating with the liquid storage chamber 1017 is opened on the front side wall of the connecting seat 1001, and a transparent glass mirror 1026 is fixedly installed in the observation port to facilitate observation of the coolant level in the liquid storage chamber 1017. A liquid filling hole communicating with the liquid storage chamber 1017 is opened on the right side wall of the connecting seat 1001, and a plug 1027 is threadedly installed in the liquid filling hole to facilitate the addition of coolant into the liquid storage chamber 1017.

[0040] In this embodiment, a waste collection box 11 is placed on the inner wall of the bottom of the grinding bed 2 for collecting the debris generated during the grinding operation and the used coolant.

[0041] In the present embodiment, it should be noted that motor 1 3, motor 2 1005, motor 3 1014, hydraulic cylinder 1 4, hydraulic cylinder 2 9, electric telescopic rod 1009, water pump 1018, and solenoid valve 1025 can all be purchased on the market or customized in the factory, and their line connection methods and control methods are mature technologies in the field and are fully disclosed, so they will not be elaborated in this article.

[0042] Through the above structure, the working principle of the ultra-precision grinding device for water pump shaft parts provided by the present invention is as follows:

[0043] First, place the water pump shaft parts horizontally between the two three-jaw chucks 6, and first clamp and fix one end of the water pump shaft parts on the three-jaw chuck 6 fixedly connected to the output shaft end of the motor 3, then start the hydraulic cylinder 4 to extend, and the hydraulic cylinder 4 drives the shaft seat 5 and the three-jaw chuck 6 thereon to move horizontally to the left until the other end of the water pump shaft parts is inserted into the three-jaw chuck 6, and stop the operation of the hydraulic cylinder 4, and then use the three-jaw chuck 6 to clamp and fix the other end of the water pump shaft parts, that is, the reliable clamping and positioning operation of the water pump shaft parts is completed;

[0044] After the water pump shaft parts are clamped and positioned, the motor 2 1005 is controlled to rotate forward or reverse, and the output shaft of the motor 2 1005 drives the main gear 1006 to rotate, and the main gear 1006 drives the sub gear 1007, the rotating shaft 1003, the U-shaped frame 1004, the hollow disc 1011 and the three abrasive grinding wheels 1013 to rotate. When the fine-grained abrasive grinding wheel among the three abrasive grinding wheels 1013 rotates to a vertical direction, the motor 2 1005 is stopped, and then the motor 2 1005 is controlled to rotate forward or reverse. The electric telescopic rod 1009 is extended and operated, and the output end of the electric telescopic rod 1009 pushes the arc-shaped toothed plate 1010 to rise vertically, so that the teeth on the arc-shaped toothed plate 1010 are meshed with the teeth on the secondary gear 1007, and the operation of the electric telescopic rod 1009 is stopped. At this time, the rotation of the secondary gear 1007 and the rotating shaft 1003 can be restricted, so that the positions of the three abrasive grinding wheels 1013 adjusted in position can be ensured to be stable and unchanged, that is, the selection operation of the abrasive grinding wheels 1013 is completed;

[0045] Then, the electric slide 8 is controlled to slide to the left on the electric guide rail 7, and the electric slide 8 drives the hydraulic cylinder 2 9 and the grinding mechanism 10 to move horizontally and linearly to the left. When the fine-grained abrasive grinding wheel moves to the left to align with the leftmost end of the water pump shaft parts, the electric slide 8 stops sliding, and then the hydraulic cylinder 2 9 is controlled to extend and run. The output end of the hydraulic cylinder 2 9 drives the grinding mechanism 10 to move vertically downward until the fine-grained abrasive grinding wheel contacts the water pump shaft parts, and then the hydraulic cylinder 2 9 stops running;

[0046] Next, the motor three 1014 and the motor one 3 are controlled to run, and the output shaft of the motor one 3 drives the three-jaw chuck 6 installed thereon to rotate, so that the clamped and positioned water pump shaft parts can be rotated, and the output shaft of the motor three 1014 drives the main gear two 1015 to rotate, and the main gear two 1015 drives the three sub-gears two 1016 to rotate simultaneously, so that the three connecting shafts 1012 can rotate accordingly, and the three abrasive grinding wheels 1013 can rotate simultaneously, and then the electric slide 8 is controlled to slide rightward on the electric guide rail 7, and the water pump shaft parts can be initially ground using the fine-grained abrasive grinding wheel through the rotation state of the clamped and positioned water pump shaft parts and the rotation of the fine-grained abrasive grinding wheel and the horizontal rightward linear movement;

[0047] After the preliminary grinding of the water pump shaft parts is completed, the operation of the motor three 1014 is suspended, and the hydraulic cylinder two 9 is controlled to shrink and reset, so that the grinding mechanism 10 rises and returns to its position, and then the electric telescopic rod 1009 is controlled to shrink and reset, so that the arc-shaped toothed plate 1010 descends and returns to release the lock of the sub-gear one 1007, and then the motor two 1005 is controlled to rotate forward or reverse. When the ultra-fine-grained abrasive grinding wheel among the three abrasive grinding wheels 1013 rotates to a vertical orientation, the operation of the motor two 1005 is stopped, and then the hydraulic cylinder two 9 is controlled to extend and the motor three 1014 is controlled to operate again until the ultra-fine-grained abrasive grinding wheel contacts the water pump shaft parts, and then the electric slide 8 is controlled to slide to the right on the electric guide rail 7, so that the water pump shaft parts can be subjected to secondary grinding using the ultra-fine-grained abrasive grinding wheel;

[0048] After the secondary grinding of the water pump shaft parts is completed, the water pump shaft parts can be ground three times using the ultra-fine abrasive wheel according to the above steps. After the three grindings are completed, the differential precision grinding of the water pump shaft parts is completed, which can meet the strict requirements of the precision indicators such as the surface roughness of the water pump shaft parts, and effectively improve the processing accuracy and surface quality of the water pump shaft parts.

[0049] During the three grinding processes of the water pump shaft parts, the water pump 1018 is started, and the corresponding solenoid valves 1025 are controlled to open in sequence according to the use of fine-grained abrasive grinding wheels, ultra-fine-grained abrasive grinding wheels, and ultra-fine-grained abrasive grinding wheels. The water pump 1018 draws coolant from the liquid storage chamber 1017 in the connecting seat 1001 through the water suction pipe 1019, and then transports it to the water box 1021 through the hose 1020 and the water inlet pipe 1022, and then sprays it from the corresponding nozzle 1024 through the water outlet pipe 1023 to the corresponding abrasive grinding wheel 1013 and the grinding area of ​​the water pump shaft parts. The coolant is used to cool, lubricate and wash away the debris generated by grinding, reduce the wear of the abrasive grinding wheel 1013, prevent the parts from being deformed, burned and other defects due to overheating, and ensure the stability of the processing quality.

[0050] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An ultra-precision grinding device for water pump shaft parts, characterized in that: The invention comprises a machine base (1) and a grinding bed (2) fixedly mounted on the top of the machine base (1); a motor (3) is fixedly mounted on the left inner wall of the grinding bed (2); a hydraulic cylinder (4) is fixedly mounted on the right inner wall of the grinding bed (2); an axle seat (5) is rotatably mounted on the output shaft end of the hydraulic cylinder (4); a three-jaw chuck (6) is fixedly mounted on the left end of the axle seat (5) and the output shaft end of the motor (3); two three-jaw chucks (6) are located on the same horizontal axis; an electric guide rail (7) is fixedly mounted on the rear inner wall of the grinding bed (2); an electric slide (8) is slidably mounted on the electric guide rail (7); a hydraulic cylinder (9) is fixedly mounted on the bottom of the electric slide (8); a grinding mechanism (10) is arranged on the output shaft end of the hydraulic cylinder (9); and the grinding mechanism (10) is used for performing ultra-precision grinding processing on water pump shaft parts.

2. The ultra-precision grinding device for water pump shaft parts according to claim 1 is characterized in that: The grinding mechanism (10) comprises a connecting seat (1001), a shaft seat (1002), a rotating shaft (1003), a U-shaped frame (1004), a rotation adjustment component, a locking component, a hollow disc (1011), three connecting shafts (1012), three abrasive grinding wheels (1013) and a driving component, wherein the connecting seat (1001) is fixedly mounted on the output shaft end of the hydraulic cylinder (9), the shaft seat (1002) is fixedly mounted on the left side wall of the connecting seat (1001), the rotating shaft (1003) is rotatably mounted on the left side of the shaft seat (1002), the U-shaped frame (1004) is fixedly mounted on the left end of the rotating shaft (1003), the hollow disc (1011) is fixedly mounted on the left side of the U-shaped frame (1004), and the three connecting shafts (1012) are all rotatably mounted on the hollow disc ( The three connecting shafts (1012) are arranged on the left side of the connecting seat (1001) and are distributed in an annular shape with equal intervals. The right ends of the three connecting shafts (1012) all extend into the hollow disc (1011). The three abrasive grinding wheels (1013) are respectively detachably mounted and fixed on the left ends of the corresponding connecting shafts (1012). The three abrasive grinding wheels (1013) are respectively a fine-grained abrasive grinding wheel, an extremely fine-grained abrasive grinding wheel, and an ultra-fine-grained abrasive grinding wheel. The rotation adjustment component and the locking component are both located between the connecting seat (1001) and the U-shaped frame (1004). The rotation adjustment component is used to control the rotation of the rotating shaft (1003). The locking component is used to lock the rotating shaft (1003). The driving component is arranged between the U-shaped frame (1004) and the hollow disc (1011). The driving component is used to control the simultaneous rotation of the three connecting shafts (1012).

3. The ultra-precision grinding device for water pump shaft parts according to claim 2 is characterized in that: The rotation adjustment component comprises a second motor (1005), a main gear (1006) and a secondary gear (1007); the second motor (1005) is fixedly mounted on the left side wall of the connecting seat (1001) and is located above the rotating shaft (1003); the main gear (1006) is fixedly mounted on the output shaft end of the second motor (1005); the secondary gear (1007) is fixedly mounted on the rotating shaft (1003); and the secondary gear (1007) is meshed with the first main gear (1006).

4. The ultra-precision grinding device for water pump shaft parts according to claim 3 is characterized in that: The locking assembly comprises a crossbeam (1008), an electric telescopic rod (1009) and an arc-shaped toothed plate (1010); the crossbeam (1008) is fixedly mounted on the left side wall of the connecting seat (1001) and is located below the rotating shaft (1003); the electric telescopic rod (1009) is fixedly mounted on the left end of the crossbeam (1008); the arc-shaped toothed plate (1010) is fixedly mounted on the output shaft end of the electric telescopic rod (1009); and the arc-shaped toothed plate (1010) is meshed with the secondary gear 1 (1007).

5. The ultra-precision grinding device for water pump shaft parts according to claim 4 is characterized in that: The driving assembly comprises a motor three (1014), a main gear two (1015) and three sub-gear twos (1016); the motor three (1014) is fixedly mounted on the right outer wall of the hollow disc (1011) through a bracket; the output shaft end of the motor three (1014) extends into the hollow disc (1011); the main gear two (1015) is fixedly mounted on the output shaft end of the motor three (1014) and is located between the three connecting shafts (1012); the three sub-gear twos (1016) are respectively fixedly mounted on the right ends of the corresponding connecting shafts (1012); and the three sub-gear twos (1016) are all meshed with the main gear two (1015).

6. The ultra-precision grinding device for water pump shaft parts according to claim 2, characterized in that: Three circular holes are provided on the left side wall of the hollow disc (1011), and the right ends of the three connecting shafts (1012) respectively penetrate the corresponding circular holes. The three connecting shafts (1012) are all fixedly sleeved with bearings, and the outer rings of the three bearings are respectively fixedly connected to the inner walls of the corresponding circular holes.

7. The ultra-precision grinding device for water pump shaft parts according to claim 5, characterized in that: The grinding mechanism (10) further comprises a coolant spraying assembly, the coolant spraying assembly comprising a water pump (1018), a water suction pipe (1019), a hose (1020), a water box (1021), a water inlet pipe (1022), a water outlet pipe (1023), three spray heads (1024) and three solenoid valves (1025). A liquid storage chamber (1017) is provided in the connection seat (1001), and the liquid storage chamber (1017) is used to hold the coolant. The water pump (1018) is fixedly mounted on the left side wall of the connecting seat (1001) and is located behind the second motor (1005). The water suction pipe (1019) is fixedly connected to the suction end of the water pump (1018). One end of the water suction pipe (1019) extends into the liquid storage chamber (1017). The hose (1020) is fixedly connected to the discharge end of the water pump (1018). The water box (1021) is fixedly mounted The water inlet pipe (1022) is fixedly mounted on the top of the water box (1021) at the center of the left inner wall of the hollow disc (1011), one end of the water inlet pipe (1022) extends into the water box (1021), the other end of the water inlet pipe (1022) extends out of the hollow disc (1011) and is fixedly connected to one end of the hose (1020), and the water outlet pipe (1023) is fixedly mounted on the hollow disc (1011). 1011), the right end of the water outlet pipe (1023) extends into the water box (1021), the three nozzles (1024) are fixedly mounted on the left end of the water outlet pipe (1023) and are distributed in a ring shape with equal spacing, and the three nozzles (1024) correspond to the three abrasive grinding wheels (1013) one by one, and the three solenoid valves (1025) are fixedly mounted on the corresponding nozzles (1024).

8. The ultra-precision grinding device for water pump shaft parts according to claim 7, characterized in that: An observation port communicating with the liquid storage chamber (1017) is provided on the front side wall of the connecting seat (1001), and a transparent glass mirror (1026) is fixedly installed in the observation port.

9. The ultra-precision grinding device for water pump shaft parts according to claim 7, characterized in that: A liquid adding hole communicating with the liquid storage chamber (1017) is provided on the right side wall of the connecting seat (1001), and a plug (1027) is installed in the inner thread of the liquid adding hole.

10. The ultra-precision grinding device for water pump shaft parts according to claim 1, characterized in that: A waste collection box (11) is placed on the inner wall of the bottom of the grinding bed (2).

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