Maintainable three cylinder crankshaft indexing plate

Abstract

The application provides a maintainable three-cylinder crankshaft indexing disc, and relates to the technical field of indexing disc equipment. The indexing disc comprises an indexing seat chassis, a snap ring flange is fixedly connected to the front end of the indexing seat chassis, an indexing chuck is arranged at the front end of the snap ring flange, the indexing chuck is movably connected between the snap ring flange and the indexing seat chassis, a servo motor is fixedly connected to one side of the indexing seat chassis, a compensation limiting mechanism is movably connected to the bottom end inside the indexing seat chassis, two groups of liquid inlet and outlet holes are arranged at the back end of the indexing seat chassis, and a speed reduction mechanism is arranged. When the servo motor is driven, the speed reduction mechanism can drive the driving gear to rotate. The driving gear is meshed with the speed reduction teeth at one end of the first frame rod, directly drives the speed reduction teeth to rotate, and a plurality of groups of speed reduction teeth are arranged on the surfaces of the first frame rod and the second frame rod. After the plurality of groups of speed reduction teeth are driven, the basic speed reduction is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of index plate equipment, and particularly relates to a maintainable three-cylinder crankshaft index plate. BACKGROUND

[0002] An index plate is a machine tool accessory for clamping a workpiece on a chuck or between two centers, rotating, indexing and positioning the workpiece. According to the transmission and indexing form, the index plate can be divided into worm pair index plate, degree plate index plate, hole plate index plate, slot plate index plate, end tooth plate index plate and other index plates. According to the function, the index plate can be divided into universal index plate, semi-universal index plate and equal division index plate. According to the structure form, the index plate can be divided into vertical and horizontal index plates, tiltable index plates and suspended beam index plates. The structure of the index plate mainly includes a clamping part, an indexing and positioning part and a transmission part. The index plate is mainly used for milling machines and is also commonly used for drilling machines and surface grinding machines. The index plate can also be placed on a platform for a bench worker to use for scribing. The index plate mainly includes a universal index head and an optical index head. In the machining process of a three-cylinder or multi-cylinder automobile crankshaft, an index plate device is needed to clamp and fix the crankshaft end, so as to ensure good rotation and transmission accuracy, thereby realizing turning machining operation of the crankshaft precision part.

[0003] According to the search, a Chinese patent with the patent number CN115122152A discloses an index plate mechanism, which includes a rotating member and a plurality of positioning members. The rotating member includes a rotating disc and a rotating shaft, and the rotating disc is rotationally arranged on the rotating shaft. The plurality of positioning members are annularly arranged on the rotating member, and adjacent two positioning members are spaced apart from each other by a gap. Each positioning member includes a plate body, a horizontal adjustment structure and a vertical adjustment structure. The horizontal adjustment structure is connected and arranged between the plate body and the rotating disc, and can adjust the horizontal position of the plate body relative to the rotating disc. One side of the vertical adjustment structure is fixed to the rotating disc, and the other side of the vertical adjustment structure abuts against the plate body. The vertical adjustment structure can adjust the abutting pressure strength of the plate body relative to the rotating disc. The plate body positions of the plurality of positioning members can be adjusted to correspond to the positions of the machining device through the horizontal adjustment structure and the vertical adjustment structure.

[0004] However, in the prior art, the existing index plate device generally realizes deceleration transmission by setting a speed reduction mechanism between the servo motor and the index chuck transmission, and the stability of the traditional speed reduction mechanism is not high, the speed reduction teeth are directly connected with the end cover, there are connection differences, so that in the actual operation process, the speed reduction teeth have the phenomena of shaking, shaking and the like, which affects the transmission accuracy of the index chuck, in addition, the speed reduction mechanism of the current index plate device needs to be maintained regularly, including but not limited to the addition of lubricating oil, and the speed reduction teeth are in a transmission state for a long time, the frequency of adding lubricating oil is required frequently, the maintenance frequency is required to be high, which is quite troublesome, and when the internal lubricating oil needs to be replaced, the end cover of the speed reduction mechanism needs to be opened for cleaning operation, which is easy to cause dust from the outside to enter, causing transmission wear of the speed reduction teeth, and then affecting the accuracy, finally, since the transmission accuracy of the index plate is required to be high, the actual transmission amount of the servo motor needs to be compensated, and the current compensation is directly compensated by the servo system, which cannot effectively realize real-time control operation according to the actual rotation amount of the index chuck, and the numerical control accuracy is low. SUMMARY

[0005] The purpose of the present application is to solve the problems of instability of speed reduction, difficulty in lubricating oil maintenance and poor compensation accuracy in the prior art, and to provide a maintainable three-cylinder crankshaft index plate.

[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: a maintainable three-cylinder crankshaft index plate, comprising an index seat chassis, the front end of the index seat chassis is fixedly connected with a snap ring flange, the front end of the snap ring flange is provided with an index chuck, and the index chuck is movably connected between the snap ring flange and the index seat chassis, one side of the index seat chassis is fixedly connected with a servo motor, the bottom end of the inside of the index seat chassis is movably connected with a compensation limiting mechanism, the back end of the index seat chassis is provided with two groups of liquid inlet and outlet holes, the inside of the index seat chassis is fixedly connected with a speed reduction mechanism, and the compensation limiting mechanism is located at the bottom of the speed reduction mechanism, the top of the speed reduction mechanism is movably connected with a main transmission turbine, the back of the index chuck is in transmission connection between the main transmission turbine through a transmission pin, one side of the speed reduction mechanism is provided with a circulating mechanism, the inside of the index seat chassis is provided with an internal chamber, the speed reduction mechanism is located inside the internal chamber, and one group of the liquid inlet and outlet holes is in communication with the internal chamber.

[0007] As a preferred implementation, the circulating mechanism comprises a piston cylinder, a U-shaped connecting rod, an engaging bracket, a cam tooth, a collecting pipe, a drainage pipe, a one-way electromagnetic valve, two sets of blocking electromagnetic valves and a shower pipe, the U-shaped connecting rod is fixedly connected to the bottom of the engaging bracket, one end of the U-shaped connecting rod is slidably connected to the inside of the piston cylinder, the cam tooth is engaged with the inside of the engaging bracket, the collecting pipe is fixedly connected to the bottom end of the piston cylinder, the drainage pipe is fixedly connected to the top of the piston cylinder, the one-way electromagnetic valve is fixedly connected between the collecting pipe, the blocking electromagnetic valves are fixedly connected to the upper and lower ends of the drainage pipe, and the shower pipe is fixedly connected to the top end of the drainage pipe through a connecting pipe.

[0008] As a preferred implementation, the cam tooth is fixedly connected to one end of the speed reduction mechanism, the engaging bracket is slidably connected to the inside of the index seat chassis, the shower pipe is located directly above the speed reduction mechanism, and the piston cylinder is fixedly connected to the index seat chassis.

[0009] As a preferred implementation, the bottom end of the drainage pipe is in communication with the liquid inlet and outlet hole, one end of the collecting pipe is in communication with the bottom of the internal chamber, the drainage pipe is in communication with the top of the piston cylinder, and the blocking electromagnetic valve is located at the communication position close to one end of the shower pipe.

[0010] As a preferred implementation, the speed reduction mechanism comprises a driving gear, a first frame rod, a second frame rod, a plurality of sets of speed reduction teeth, a plurality of sets of movable sleeves and two sets of transmission belt assemblies, the second frame rod is located on the top of the first frame rod, the movable sleeves are sleeved with the speed reduction teeth, a plurality of sets of the movable sleeves are respectively sleeved on the surfaces of the first frame rod and the second frame rod, and two sets of the transmission belt assemblies are respectively sleeved on the left and right ends of the second frame rod.

[0011] As a preferred implementation, the two ends of the main transmission turbine are drivingly connected between the second frame rod and the transmission belt assembly, one set of the speed reduction teeth is fixedly connected between the second frame rod, and the speed reduction teeth are located at one end close to the transmission belt assembly, and a plurality of sets of the speed reduction teeth are movably connected with the first frame rod and the second frame rod through the movable sleeves.

[0012] As a preferred implementation, the left and right ends of the first frame rod and the second frame rod are movably connected between the index seat chassis through the shaft sleeves, and the first frame rod and the second frame rod are located on the inside of the internal chamber, the speed reduction teeth are located directly below the internal chamber, and the cam tooth is fixedly connected to one end of the second frame rod.

[0013] As a preferred implementation, the compensation limiting mechanism comprises a secondary transmission turbine, a potential transformer, a manual rod, a handle sleeve, a stress spring, a movable ring, a contact seat and a plug-in hole, the potential transformer is located at one end of the secondary transmission turbine, and the secondary transmission turbine is movably connected between the brush and the potential transformer, the manual rod is fixedly connected to the end of the secondary transmission turbine away from the potential transformer, the handle sleeve is sleeved on the outside of the manual rod and is slidably connected between the handle sleeve and the manual rod, the stress spring is sleeved between the handle sleeve and the stress spring, the movable ring is located on one side of the stress spring and opposite to the stress spring and the contact seat, the handle sleeve is elastically connected between the stress spring and the contact seat, and the plug-in holes are respectively formed in the surfaces of the handle sleeve and the manual rod.

[0014] As a preferred implementation, the secondary transmission turbine is drivingly connected to the bottom end of the back of the indexing chuck, the potential transformer is electrically connected between the wire and the servo motor, the left and right ends of the secondary transmission turbine are movably connected between the shaft sleeve and the indexing seat chassis, and the contact seat is fixedly connected to the indexing seat chassis.

[0015] As a preferred implementation, the plug-in holes formed in the surfaces of the handle sleeve and the manual rod are aligned with each other, one end of the handle sleeve is attached to the indexing seat chassis, and the secondary transmission turbine and the primary transmission turbine are oppositely distributed about the center surface of the indexing chuck.

[0016] Compared with the prior art, the application has the advantages and positive effects that:

[0017] Firstly, the cycle mechanism is arranged, so that the cam tooth in the cycle mechanism is driven to rotate during the transmission of the speed reduction mechanism, the meshing card frame engaged with the cam tooth can reciprocatingly move up and down, so as to drive the U-shaped connecting rod to move up and down, one end of the U-shaped connecting rod slides in the piston cylinder, and the reciprocating movement can drive the medium in the piston cylinder to move, the medium in the piston cylinder is pushed to the top, enters the distribution pipe through the blocking electromagnetic valve, and the distribution pipe is located directly above the speed reduction mechanism, so that the surface parts of the speed reduction mechanism are drip lubricated, and the excess lubricating oil is accumulated at the bottom end of the internal cavity, at this time, the suction operation of the piston cylinder can reabsorb the lubricating oil in the internal cavity through the collecting pipe, so that the circulation of the lubricating oil is realized, and the reciprocating maintenance and lubrication operation is not needed, which is relatively convenient.

[0018] Secondly, the speed reduction mechanism is arranged, when the servo motor is driven, the driving gear in the speed reduction mechanism is driven to rotate, the driving gear is engaged with the speed reduction gears at one end of the first frame rod, directly drives the speed reduction gears to rotate, and the speed reduction gears are distributed on the surfaces of the first frame rod and the second frame rod, and are sleeved on the surfaces of the first frame rod and the second frame rod, so that the speed reduction gears are driven to realize basic speed reduction, compared with the traditional speed reduction mechanism directly connected with the end body, the first frame rod and the second frame rod are movable with the indexing seat chassis, the speed reduction gears are limited on the surfaces of the first frame rod and the second frame rod, so that the transmission precision is improved to a certain extent, and the two ends of the second frame rod are connected with the main transmission turbine through the transmission belt assembly, the rotation effect of the main transmission turbine can be guaranteed to be stable, so that the indexing chuck is driven to rotate, and better indexing operation is realized.

[0019] Thirdly, the compensation limiting mechanism is arranged, when the indexing chuck is driven to rotate by the main transmission turbine, the auxiliary transmission turbine in the compensation limiting mechanism is driven to rotate, one end of the auxiliary transmission turbine is connected with the potential transducer, the actual rotation amount of the auxiliary transmission turbine can be monitored by the potential transducer, so that the real-time feedback signal is fed back to the servo motor, the actual compensation number of the servo motor is accurately realized, the other end of the auxiliary transmission turbine is fixedly provided with the manual rod, the handle sleeve is sleeved on the surface of the manual rod, the handle sleeve is abutted between the indexing seat chassis under the elastic action of the stress spring, so that the torque effect of the auxiliary transmission turbine is improved, the torque force of the servo motor driving the indexing chuck to rotate is improved, the self-rotation error of the indexing chuck is prevented, the precision control is further improved, and after the handle sleeve is pulled, the movable ring on one side of the stress spring is abutted between the abutment seat, the insertion hole on the surface of the handle sleeve is connected with the insertion hole on the surface of the manual rod, at this time, the insertion pin is inserted, the handle sleeve is fixed, so that the rotation of the auxiliary transmission turbine is facilitated, and the mode is adjustable and has high applicability. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A schematic diagram of the overall structure appearance of the maintainable three-cylinder crankshaft indexing disc is provided.

[0021] Figure 2 A schematic diagram of the rear end of the overall structure of the maintainable three-cylinder crankshaft indexing disc is provided.

[0022] Figure 3 A schematic diagram of the internal structure connection of the maintainable three-cylinder crankshaft indexing disc is provided.

[0023] Figure 4 A schematic diagram of the internal structure of the maintainable three-cylinder crankshaft indexing disc is provided.

[0024] Figure 5 A schematic diagram of the front end disassembly of the overall structure of the maintainable three-cylinder crankshaft indexing disc is provided.

[0025] Figure 6 A schematic diagram of a maintenanceable three-cylinder crankshaft indexing disc reduction mechanism connection structure provided by the present application.

[0026] Figure 7 A schematic diagram of a maintenanceable three-cylinder crankshaft indexing disc compensation limiting mechanism connection structure provided by the present application.

[0027] Figure 8 A schematic diagram of a maintenanceable three-cylinder crankshaft indexing disc compensation limiting mechanism split structure provided by the present application.

[0028] Figure 9 A schematic diagram of a maintenanceable three-cylinder crankshaft indexing disc provided by the present application. Figure 3 A schematic diagram of a maintenanceable three-cylinder crankshaft indexing disc A point amplification structure.

[0029] Figure 10 A schematic diagram of a maintenanceable three-cylinder crankshaft indexing disc B point amplification structure provided by the present application. Figure 5 A schematic diagram of a maintenanceable three-cylinder crankshaft indexing disc B point amplification structure provided by the present application.

[0030] Legend:

[0031] 1, indexing seat chassis; 2, snap ring flange; 3, indexing chuck; 4, servo motor; 5, compensation limiting mechanism; 501, auxiliary transmission turbine; 502, potential transformer; 503, manual rod; 504, handle sleeve; 505, stress spring; 506, movable ring; 507, abutment seat; 508, plug-in hole; 6, inlet and outlet oil hole; 7, reduction mechanism; 701, driving gear; 702, first frame rod; 703, second frame rod; 704, reduction gear; 705, movable sleeve; 706, transmission belt assembly; 8, main transmission turbine; 9, circulating mechanism; 901, piston cylinder; 902, U-shaped connecting rod; 903, meshing clamp; 904, cam tooth; 905, collection pipe; 906, drainage pipe; 907, one-way electromagnetic valve; 908, blocking electromagnetic valve; 909, shower pipe; 10, internal chamber. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] As Figures 1-10As shown, the present application provides a technical solution: a maintainable three-cylinder crankshaft indexing disc, comprising an indexing seat chassis 1, the front end of the indexing seat chassis 1 is fixedly connected with a snap ring flange plate 2, the front end of the snap ring flange plate 2 is provided with an indexing chuck 3, and the indexing chuck 3 is movably connected between the snap ring flange plate 2 and the indexing seat chassis 1, one side of the indexing seat chassis 1 is fixedly connected with a servo motor 4, the bottom end inside the indexing seat chassis 1 is movably connected with a compensation limiting mechanism 5, the back end of the indexing seat chassis 1 is provided with two groups of liquid inlet and outlet holes 6, the inside of the indexing seat chassis 1 is fixedly connected with a speed reduction mechanism 7, and the compensation limiting mechanism 5 is located at the bottom of the speed reduction mechanism 7, the top of the speed reduction mechanism 7 is movably connected with a main transmission turbine 8, the back of the indexing chuck 3 is drivingly connected between the main transmission turbine 8, one side of the speed reduction mechanism 7 is provided with a circulating mechanism 9, the inside of the indexing seat chassis 1 is provided with an internal chamber 10, the speed reduction mechanism 7 is located inside the internal chamber 10, and the single group of liquid inlet and outlet holes 6 is communicated with the internal chamber 10.

[0034] In this embodiment, the indexing chuck 3 is movably connected to the front end of the indexing seat chassis 1 through the snap ring flange plate 2, and the back thereof is butted with the main transmission turbine 8. When the servo motor 4 is driven, the servo motor 4 drives the speed reduction mechanism 7 inside the internal chamber 10 to rotate, and under the transmission effect of the main transmission turbine 8, the indexing chuck 3 is driven to rotate after stable speed reduction. While the indexing chuck 3 rotates, the compensation limiting mechanism 5 at the back bottom thereof can be forced to rotate, one end of the compensation limiting mechanism 5 can monitor the rotation amount in real time and compensate the servo motor 4, thereby improving the actual compensation accuracy. The circulating mechanism 9 on one side of the speed reduction mechanism 7 can be transmitted while the speed reduction mechanism 7 rotates, realizing the circulation operation of the lubricating oil inside the internal chamber 10, thereby reducing the number of required maintenance. When it is necessary to replace the lubricating oil inside the internal chamber 10, the speed reduction mechanism 7 is driven to rotate by the servo motor 4, and the lubricating oil can be discharged from the liquid inlet and outlet hole 6 after the different electromagnetic valves in the circulating mechanism 9 are closed, thereby realizing the new lubricating oil operation without opening the end cover, effectively preventing dust from entering the internal chamber 10.

[0035] As Figure 3 , Figure 4 and Figure 9As shown, the circulation mechanism 9 includes a piston cylinder 901, a U-shaped connecting rod 902, a meshing bracket 903, a cam tooth 904, a collection pipe 905, a drain pipe 906, a one-way solenoid valve 907, two sets of blocking solenoid valves 908, and a distribution pipe 909. The U-shaped connecting rod 902 is fixedly connected to the bottom of the meshing bracket 903, and one end of the U-shaped connecting rod 902 is slidably connected to the inside of the piston cylinder 901. The cam tooth 904 meshes with the inner side of the meshing bracket 903. The collection pipe 905 is fixedly connected to the bottom end of the piston cylinder 901. The drain pipe 906 is fixedly connected to the top of the piston cylinder 901. The one-way solenoid valve 907 is fixedly connected to the collection pipe 905. The blocking solenoid valves 908 are fixedly connected to the upper and lower ends of the drain pipe 906. The distribution pipe 909 is fixedly connected to the top end of the drain pipe 906 through a connecting pipe. The cam tooth 904 is fixedly connected to one end of the reduction mechanism 7, the engagement bracket 903 is slidably connected to the inside of the indexing base 1, the drain pipe 909 is located directly above the reduction mechanism 7, and the piston cylinder 901 is fixedly connected to the indexing base 1. The bottom end of the drain pipe 906 is connected to the inlet / outlet oil port 6, one end of the collection pipe 905 is connected to the bottom of the internal chamber 10, the drain pipe 906 is connected to the top of the piston cylinder 901, and the blocking solenoid valve 908 is located at this connection position near the end of the drain pipe 909.

[0036] In this embodiment, when the reduction mechanism 7 rotates normally, it can drive the cam tooth 904 to rotate. The cam tooth 904 rotates in the engagement bracket 903, and the engagement bracket 903 is subjected to force to reciprocate up and down movement, thereby driving the U-shaped connecting rod 902 to move up and down. One end of the U-shaped connecting rod 902 moves in the piston cylinder 901, pushing the medium to the dispensing pipe 909 to perform a dripping operation on the reduction mechanism 7 below. Excess lubricating oil accumulates at the bottom of the internal chamber 10. At this time, the suction effect in the piston cylinder 901 can be achieved through... The lubricating oil is directly drawn from the bottom of the internal chamber 10 through the collection pipe 905 and the one-way solenoid valve 907, and then pumped back into the piston cylinder 901, thereby realizing the circulation supply of lubricating oil. When a replacement operation is required, it is only necessary to control the opening and closing of the blocking solenoid valve 908 to allow the lubricating oil to enter the inlet and outlet oil holes 6 through the drain pipe 906, thereby realizing the oil discharge operation. In this way, the lubricating oil replacement operation can be completed without opening the end cover, which is relatively quick and can prevent dust from entering the internal chamber 10 and contaminating the reduction mechanism 7.

[0037] like Figure 3 and Figure 6As shown, the speed reduction mechanism 7 comprises a driving gear 701, a first frame rod 702, a second frame rod 703, a plurality of sets of speed reduction gears 704, a plurality of sets of movable sleeves 705, and two sets of transmission belt assemblies 706. The second frame rod 703 is located on top of the first frame rod 702. The movable sleeves 705 are sleeved with the speed reduction gears 704. The plurality of sets of movable sleeves 705 are respectively sleeved on the surfaces of the first frame rod 702 and the second frame rod 703. The two sets of transmission belt assemblies 706 are respectively sleeved on the left and right ends of the second frame rod 703. The two ends of the main transmission turbine 8 are in transmission connection between the transmission belt assemblies 706 and the second frame rod 703. The single set of speed reduction gears 704 is fixedly connected with the second frame rod 703, and the speed reduction gears 704 are located at one end close to the transmission belt assemblies 706. The plurality of sets of speed reduction gears 704 are movably connected with the first frame rod 702 and the second frame rod 703 through the movable sleeves 705. The left and right ends of the first frame rod 702 and the second frame rod 703 are movably connected between the shaft sleeves and the index seat chassis 1, and the first frame rod 702 and the second frame rod 703 are located inside the inner chamber 10. The speed reduction gears 704 are located directly below the inner chamber 10. The cam tooth 904 is fixedly connected to one end of the second frame rod 703.

[0038] In the embodiment, the servo motor 4 drives the driving gear 701 in the speed reduction mechanism 7 to rotate. The driving gear 701 engages the speed reduction gears 704 on the surface of the first frame rod 702. The plurality of sets of speed reduction gears 704 engage with each other and are respectively distributed on the surfaces of the first frame rod 702 and the second frame rod 703. The movable sleeves 705 are movably connected between the speed reduction gears 704 and the first frame rod 702 and the second frame rod 703. In this way, under the stability of the first frame rod 702 and the second frame rod 703, the rotation stability of the speed reduction gears 704 is high, which can effectively prevent the speed reduction gears 704 from moving, thereby improving the transmission accuracy of the index chuck 3. The speed reduction gears 704 at one end of the second frame rod 703 directly drive the transmission belt assemblies 706 to rotate. One end of the transmission belt assemblies 706 is in transmission connection with the main transmission turbine 8. In this way, the main transmission turbine 8 can drive the index chuck 3 to rotate after rotating, and the process realizes stable speed reduction operation. Compared with the speed reduction device directly connected with the end body, the stability is stronger.

[0039] As shown in FIG. 1, Figure 7 , Figure 8 and Figure 10As shown, the compensation limiting mechanism 5 comprises a secondary transmission turbine 501, a potential transformer 502, a manual rod 503, a sleeve 504, a stress spring 505, a movable ring 506, a contact seat 507 and a plug hole 508. The potential transformer 502 is located at one end of the secondary transmission turbine 501, and the secondary transmission turbine 501 is movably connected between the brush and the potential transformer 502. The manual rod 503 is fixedly connected to the end of the secondary transmission turbine 501 away from the potential transformer 502. The sleeve 504 is sleeved on the outside of the manual rod 503 and is slidably connected between the sleeve 504 and the manual rod 503. The stress spring 505 is sleeved between the sleeve 504 and the stress spring 505. The movable ring 506 is located on one side of the stress spring 505 and on the opposite side of the stress spring 505 and the contact seat 507. The sleeve 504 is elastically connected between the stress spring 505 and the contact seat 507. The plug holes 508 are respectively formed on the surfaces of the sleeve 504 and the manual rod 503. The secondary transmission turbine 501 is drivingly connected to the bottom end of the back of the indexing chuck 3. The potential transformer 502 is electrically connected between the wire and the servo motor 4. The left and right ends of the secondary transmission turbine 501 are movably connected between the shaft sleeve and the indexing seat base 1. The contact seat 507 is fixedly connected to the indexing seat base 1. The plug holes 508 formed on the surfaces of the sleeve 504 and the manual rod 503 are aligned with each other. One end of the sleeve 504 is in close contact with the indexing seat base 1. The secondary transmission turbine 501 and the main transmission turbine 8 are oppositely distributed about the center surface of the indexing chuck 3.

[0040] In this embodiment, the secondary transmission turbine 501 in the bottom compensation limiting mechanism 5 can be driven to rotate while the indexing chuck 3 rotates. The potential transformer 502 at one end of the secondary transmission turbine 501 can monitor the rotation amount in real time and convert the rotation amount into an electrical signal to be transmitted to the servo motor 4, thereby realizing direct terminal compensation operation and achieving higher actual compensation accuracy. The other end of the secondary transmission turbine 501 drives the manual rod 503 to rotate. The surface of the manual rod 503 is sleeved with the sliding oil sleeve 504. The sleeve 504 is elastically resisted between the movable ring 506 on one side of the stress spring 505 and the contact seat 507 and is tightly resisted between the sleeve 504 and the indexing seat base 1, thereby improving the rotation torque of the secondary transmission turbine 501. In this way, the rotation accuracy of the indexing seat base 1 can be effectively improved to prevent the indexing seat base 1 from rotating. When manual operation is required, the sleeve 504 is pulled to align the plug holes 508 on the surfaces of the sleeve 504 and the manual rod 503. At this time, the plug pin is inserted to separate one end of the sleeve 504 from the indexing seat base 1. In this way, manual rotation can be realized, and the mode can be adjusted.

[0041] Working principle: the indexing chuck 3 is limited between the clamping ring flange 2 and the indexing seat bottom plate 1, at this time the driving servo motor 4 drives the driving gear 701 in the speed reducer 7 to rotate in the inner chamber 10 of the indexing seat bottom plate 1, the driving gear 701 is directly engaged with the speed reduction teeth 704 on the surface of the first frame rod 702, and the speed reduction teeth 704 are engaged with each other and are respectively sleeved on the surface of the second frame rod 703 and the first frame rod 702 through the movable sleeve 705, so that the rotation stability of the speed reduction teeth 704 is stronger, and the speed reduction teeth 704 near one end of the transmission belt assembly 706 are directly fixed on the second frame rod 703, the overall transmission can realize speed reduction and drive the main transmission turbine 8 to rotate through the transmission belt assembly 706, the main transmission turbine 8 can directly drive the indexing chuck 3 to rotate at the front end of the indexing seat bottom plate 1 after rotation, realizing the basic transmission effect, and one end of the second frame rod 703 in the speed reducer 7 is fixed with the cam tooth 904 in the circulating mechanism 9, the cam tooth 904 rotates in the inside of the engagement clamp frame 903, the engagement clamp frame 903 moves up and down under the engagement effect, drives the U-shaped connecting rod 902 to realize the reciprocating motion in the piston cylinder 901, at this time the lubricating oil in the piston cylinder 901 can be pushed into the lubricating pipe 909, and the lubricating operation of the speed reducer 7 at the bottom is carried out, and the excess lubricating oil can be directly accumulated at the bottom of the inner chamber 10, the suction effect of the piston cylinder 901 can suck the lubricating oil through the collecting pipe 905 and the one-way electromagnetic valve 907, realizing the reciprocating supply operation of the lubricating oil, when it needs to be replaced, the opening and closing of the control blocking electromagnetic valve 908 is controlled, at this time the suction effect of the piston cylinder 901 can directly drive the lubricating oil inside the inner chamber 10 to be supplied into the inlet and outlet oil hole 6 through the drainage pipe 906, realizing the operation of replacing the lubricating oil, finally the indexing chuck 3 rotates and drives the auxiliary transmission turbine 501 in the compensation limiting mechanism 5 to rotate, one end of the auxiliary transmission turbine 501 is connected with the potential transformer 502, the potential transformer 502 can monitor the rotation amount of the auxiliary transmission turbine 501 in real time, and convert the signal to the servo motor 4, realizing the terminal direct compensation operation, and the other end of the auxiliary transmission turbine 501 is fixed with the manual rod 503, the handle sleeve 504 is sleeved on the surface of the manual rod 503, the handle sleeve 504 normally abuts against the indexing seat bottom plate 1 through the stress spring 505, improving the rotation torque of the auxiliary transmission turbine 501, and after pulling the handle sleeve 504, the stress spring 505 realizes the contraction between the abutting seat 507 through the movable ring 506, realizing the butt joint of the insertion sleeve hole 508 on the surface of the handle sleeve 504 and the insertion sleeve hole 508 on the surface of the manual rod 503, at this time the insertion pin is inserted, the handle sleeve 504 can be fixed, so as to facilitate the manual control of the rotation of the auxiliary transmission turbine 501.

[0042] The above merely describes preferred embodiments of the present application, but is not intended to limit the present application to other forms, any person skilled in the art can make changes or modifications to the above disclosed technical contents into equivalent embodiments with equivalent changes, and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical solution content of the present application still belongs to the protection scope of the present application technical solution.

Claims

1. A maintainable three-cylinder crankshaft indexing plate, comprising an indexing base chassis (1), characterized in that: The indexing base chassis (1) is fixedly connected to a retaining ring flange (2) at its front end. A chuck (3) is provided at the front end of the retaining ring flange (2), and the chuck (3) is movably connected to the indexing base chassis (1) via the retaining ring flange (2). A servo motor (4) is fixedly connected to one side of the indexing base chassis (1). A compensation limiting mechanism (5) is movably connected to the bottom end inside the indexing base chassis (1). Two sets of inlet and outlet oil holes (6) are opened at the back end of the indexing base chassis (1). A servo motor (4) is fixedly connected inside the indexing base chassis (1). The deceleration mechanism (7) and the compensation limiting mechanism (5) are located at the bottom of the deceleration mechanism (7). The top of the deceleration mechanism (7) is movably connected to the main drive turbine (8). The back of the indexing chuck (3) is connected to the main drive turbine (8) through a drive pin. A circulation mechanism (9) is provided on one side of the deceleration mechanism (7). An internal chamber (10) is opened inside the indexing base chassis (1). The deceleration mechanism (7) is located inside the internal chamber (10). A single set of inlet and outlet oil holes (6) are connected to the internal chamber (10). The compensation limiting mechanism (5) includes a secondary drive turbine (501), a potential converter (502), a manual lever (503), a grip sleeve (504), a stress spring (505), a movable ring (506), a contact seat (507), and a plug hole (508). The potential converter (502) is located at one end of the secondary drive turbine (501), and the secondary drive turbine (501) is movably connected to the potential converter (502) through a brush. The manual lever (503) is fixedly connected to the end of the secondary drive turbine (501) away from the potential converter (502). The grip sleeve (504) is sleeved on the outside of the manual lever (503), and the grip sleeve (504) and the manual lever (503) are slidably connected. The stress spring (505) is connected to the grip sleeve (504). The movable ring (506) is located on one side of the stress spring (505) and on the opposite side of the stress spring (505) and the abutment (507). The handle (504) is elastically connected to the abutment (507) through the stress spring (505). The insertion hole (508) is opened on the surface of the handle (504) and the manual lever (503). The auxiliary drive turbine (501) is driven and connected to the bottom end of the back of the indexing chuck (3). The potential converter (502) is electrically connected to the servo motor (4) through the wire. The left and right ends of the auxiliary drive turbine (501) are movably connected to the indexing base chassis (1) through the bushing. The abutment (507) is fixedly connected to the indexing base chassis (1).

2. The maintainable three-cylinder crankshaft indexing plate according to claim 1, characterized in that: The circulation mechanism (9) includes a piston cylinder (901), a U-shaped connecting rod (902), a meshing bracket (903), a cam tooth (904), a collection pipe (905), a drain pipe (906), a one-way solenoid valve (907), two sets of blocking solenoid valves (908), and a drain pipe (909). The U-shaped connecting rod (902) is fixedly connected to the bottom of the meshing bracket (903), and one end of the U-shaped connecting rod (902) is slidably connected to the inside of the piston cylinder (901). The cam tooth (904) Engages the inner side of the engagement bracket (903), the collection pipe (905) is fixedly connected to the bottom end of the piston cylinder (901), the drain pipe (906) is fixedly connected to the top of the piston cylinder (901), the one-way solenoid valve (907) is fixedly connected to the collection pipe (905), the blocking solenoid valve (908) is fixedly connected to the upper and lower ends of the drain pipe (906), and the dispensing pipe (909) is fixedly connected to the top end of the drain pipe (906) through a connecting pipe.

3. A maintainable three-cylinder crankshaft indexing plate according to claim 2, characterized in that: The cam tooth (904) is fixedly connected to one end of the reduction mechanism (7), the engagement bracket (903) is slidably connected to the inside of the indexing base chassis (1), the condenser pipe (909) is located directly above the reduction mechanism (7), and the piston cylinder (901) is fixedly connected to the indexing base chassis (1).

4. A maintainable three-cylinder crankshaft indexing plate according to claim 3, characterized in that: The bottom end of the drain pipe (906) is connected to the inlet and outlet oil holes (6), one end of the collection pipe (905) is connected to the bottom of the internal chamber (10), the drain pipe (906) is connected to the top of the piston cylinder (901), and the blocking solenoid valve (908) is located at the end of the connecting position near the drain pipe (909).

5. A maintainable three-cylinder crankshaft indexing plate according to claim 2, characterized in that: The deceleration mechanism (7) includes a drive gear (701), a first support rod (702), a second support rod (703), several sets of deceleration teeth (704), several sets of movable sleeves (705), and two sets of transmission belt assemblies (706). The second support rod (703) is located at the top of the first support rod (702). The movable sleeves (705) are sleeved with the deceleration teeth (704). Several sets of movable sleeves (705) are respectively sleeved on the surfaces of the first support rod (702) and the second support rod (703). The two sets of transmission belt assemblies (706) are respectively sleeved on the left and right ends of the second support rod (703).

6. A maintainable three-cylinder crankshaft indexing plate according to claim 5, characterized in that: The two ends of the main drive turbine (8) are connected to the second frame rod (703) through the drive belt assembly (706). A single set of reduction gears (704) is fixedly connected to the second frame rod (703), and the reduction gears (704) are located at one end close to the drive belt assembly (706). Several sets of reduction gears (704) are movably connected to the first frame rod (702) and the second frame rod (703) respectively through movable sleeves (705).

7. A maintainable three-cylinder crankshaft indexing plate according to claim 6, characterized in that: The left and right ends of the first rod (702) and the second rod (703) are movably connected to the indexing base chassis (1) through bushings, and the first rod (702) and the second rod (703) are both located inside the internal cavity (10). The reduction gear (704) is located directly below the internal cavity (10), and the cam gear (904) is fixedly connected to one end of the second rod (703).

8. A maintainable three-cylinder crankshaft indexing plate according to claim 1, characterized in that: The insertion holes (508) on the surfaces of the grip (504) and the manual lever (503) are aligned with each other. One end of the grip (504) is in contact with the indexing base chassis (1). The auxiliary drive turbine (501) and the main drive turbine (8) are distributed opposite to each other about the center plane of the indexing chuck (3).

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