CN114986378A - Grinding device and grinding method for grinding internal teeth of gear ring - Google Patents
Grinding device and grinding method for grinding internal teeth of gear ring Download PDFInfo
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- CN114986378A CN114986378A CN202210626103.3A CN202210626103A CN114986378A CN 114986378 A CN114986378 A CN 114986378A CN 202210626103 A CN202210626103 A CN 202210626103A CN 114986378 A CN114986378 A CN 114986378A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/34—Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The present invention provides a grinding device for grinding internal teeth of a ring gear, including: a base; the rotating platform is rotatably arranged on the base; the clamping piece is arranged on the rotating table and used for fixing the gear ring; the internal tooth grinding mechanism is arranged on the base in a vertically movable manner and is positioned right above the rotating table; the internal tooth grinding mechanism comprises three grinding modules and a synchronous external support mechanism for driving the grinding modules to move inside and outside, the three grinding modules are all arranged on the synchronous external support mechanism and are arranged on a first circumference at equal angles, and the circle center of the first circumference is positioned on the rotating axis of the rotating table; each grinding module comprises: the shaft connecting frame is arranged on the synchronous external support mechanism; the grinding discs are rotatably arranged on the shaft connecting frame, the rotating axes of the grinding discs are horizontally arranged, the rotating axes of the three grinding discs are positioned on the same horizontal plane, and the included angle between the three grinding discs is 60 degrees. The grinding device can realize automatic grinding of the internal teeth.
Description
Technical Field
The invention relates to the field of gear manufacturing, in particular to a grinding device and a grinding method for grinding internal teeth of a gear ring.
Background
Gear drive is a transmission form that uses extensively in the mechanical transmission, come transmission power through the motion of meshing between the teeth of a cogwheel, but after the gear has been used for a long time, can make the gear have certain wearing and tearing, make the cooperation between the gear not inseparable enough, can influence transmission precision, so need grind partial gear, have higher precision requirement to its internal gear, often need the mill to grind it, present gear grinding major part can directly pack into equipment with the gear and grind, equipment operating speed accelerates, the grinding effect is unsatisfactory, unable even grinding, and the tradition only grinds the teeth of a cogwheel one by one through a grinding disk, the grinding disk can all appear wearing and tearing after grinding some teeth of a cogwheel each time, still need adjust its precision of aiming at the teeth of a cogwheel repeatedly, inefficiency.
At present open chinese patent CN201620843311.9 ring gear grinder includes the frame and sets firmly the machine of grinding in the frame, still smooth being equipped with the slide in the frame and setting firmly the ring gear mounting fixture on the slide, the slide even has actuating mechanism to make slide and ring gear mounting fixture be close to or keep away from the machine of grinding, ring gear mounting fixture is including setting firmly the fixing base on the slide, setting firmly a plurality of fixed blocks that the fixing base is close to grinding machine one end, a pair of butt piece that is located the fixing base both sides respectively and a pair of revolving cylinder that is located the butt piece outside respectively, revolving cylinder rotates and is connected with the stopper.
According to the above patent, the grinding head is driven by the motor on the grinding machine to swing back and forth to grind part of the internal gear ring, however, the efficiency of the method is low and the time for adjusting the grinding head is too long.
Disclosure of Invention
Based on this, it is necessary to provide a grinding apparatus and a grinding method for grinding internal teeth of a ring gear, in order to solve the problems in the prior art, the present invention realizes simultaneous grinding of three angles of an internal ring gear, improves the grinding precision of the internal ring gear, and improves the grinding efficiency by simultaneously externally supporting three grinding mechanisms by a synchronous externally supporting mechanism and detecting the corresponding grinding mechanism by each wear detection mechanism in real time.
In order to solve the problems of the prior art, the invention adopts the technical scheme that:
a grinding apparatus for grinding internal teeth of a ring gear, comprising:
a base;
the rotating platform is rotatably arranged on the base;
the clamping piece is arranged on the rotating table and used for fixing the gear ring;
the internal tooth grinding mechanism is arranged on the base in a vertically movable manner and is positioned right above the rotating table; it is characterized in that the preparation method is characterized in that,
the internal tooth grinding mechanism comprises three grinding modules and a synchronous external support mechanism for driving the grinding modules to move inside and outside, the three grinding modules are all arranged on the synchronous external support mechanism and are arranged on a first circumference at equal angles, and the circle center of the first circumference is positioned on the rotating axis of the rotating table; each grinding module comprises:
the shaft connecting frame is arranged on the synchronous external support mechanism;
the grinding discs are rotatably arranged on the shaft connecting frame, the rotating axes of the grinding discs are horizontally arranged, the rotating axes of the three grinding discs are positioned on the same horizontal plane, and the included angle between the rotating axes of the three grinding discs and the rotating axes of the three grinding discs is 60 degrees.
Preferably, the synchronous external bracing mechanism comprises:
the main rod is supported on the base in a vertically movable mode, the axis of the main rod is collinear with the axis of the rotating table and is of a hollow structure, and a first screw rod is arranged in the hollow structure;
the upper end of the lifting rod is inserted into the hollow structure from the lower end of the main rod and can move up and down relative to the main rod, the lifting rod is not rotatable relative to the main rod, and the lifting rod is in threaded connection with the first screw rod;
the three telescopic rods respectively correspond to the three grinding modules, one end of each telescopic rod is hinged to the main rod, and the other end of each telescopic rod is hinged to the corresponding coupling frame;
and the three connecting rods respectively correspond to the three telescopic rods, one end of each connecting rod is hinged to the lifting rod, and the other end of each connecting rod is hinged to the corresponding telescopic rod.
Preferably, every group the telescopic link includes movable rod and sleeve be fixed with first articulated lantern ring on the mobile jib, telescopic upper end articulates on first articulated lantern ring, telescopic lower extreme is followed to the upper end of movable rod and is inserted, the lower extreme of movable rod articulates on the coupling frame be fixed with the articulated lantern ring of second, every on the part of lifter not inserted in the mobile jib the telescopic lower extreme is provided with the articulated lantern ring of third, and the lower extreme of every connecting rod articulates on the articulated lantern ring of second, and the upper end articulates on the articulated lantern ring of third that corresponds.
Preferably, the synchronous external bracing mechanism further comprises three groups of horizontal linkage members, each group of horizontal linkage members comprises a first linkage member and a second linkage member, one end of the first linkage member is hinged to the end disc, the end disc is arranged on the lifting rod and located below the second hinged lantern ring, the other end of the first linkage member is hinged to one end of the second linkage member, the other end of the second linkage member is hinged to the corresponding shaft connecting frame, and the hinged axis of the relative end disc of the first linkage member, the hinged axis of the second linkage member, the hinged axis of the first linkage member and the hinged axis of the second linkage member are vertically arranged.
Preferably, each grinding module further comprises a wear detection mechanism comprising:
a sensor;
the pressing assemblies are arranged, the pressing assemblies are two groups, one group of pressing assemblies is connected with the sensor through the trigger piece, the two groups of pressing assemblies are symmetrically arranged on the coupling frame, the symmetrical surfaces of the two pressing assemblies penetrate through the middle section of the grinding disc, the two pressing assemblies are located on one side, close to the lifting rod, of the coupling frame, the two pressing assemblies press the two sides of the outer edge of the grinding disc from the two sides of the grinding disc to move along with the change of the thickness of the grinding disc, the pressure sensor can move along with the pressing assemblies through the trigger piece, and whether the abrasion of the grinding disc reaches the degree required to be replaced or not can be judged according to the data change of the sensor.
Preferably, each of the pressing assemblies includes:
a ball bearing;
the ball bearing is rotatably arranged in the mounting shell, one side of the ball bearing facing the grinding disc is exposed out of the mounting shell, and the part of the ball bearing exposed out of the mounting shell is pressed against the surface of the grinding disc;
the insert rod is arranged on one side of the mounting shell, which is far away from the grinding disc;
a sliding plate slidably disposed at a position of the shaft joint frame corresponding to each pressing component, the sliding plate being slidable relative to the shaft joint frame in a direction approaching or departing from the axis of the main rod so that the pressing component can press against or separate from the grinding disc;
the reset spring is arranged on the inserted rod, one end of the reset spring is abutted against the installation shell, the other end of the reset spring is abutted against the corresponding sliding plate, and the reset spring is always in a compressed state.
Preferably, the device further comprises a linkage propulsion mechanism which can drive the sliding plate to slide back and forth along the sliding direction; the linkage propulsion mechanism comprises:
the sleeve rod is arranged on the lower surface of the end disc, the axis of the sleeve rod is collinear with the axis of the main rod, and a second screw rod is rotatably arranged in the sleeve rod;
the sliding block is arranged on the loop bar in a vertically movable mode and is in threaded connection with the second screw rod;
the number of the connecting plates is three, and the sliding plates of the two groups of abutting components on each grinding module are provided with one connecting plate;
and the push rods are provided with three numbers, one end of each push rod is hinged on one connecting plate, and the other end of each push rod is hinged on the sliding block.
The invention also provides a grinding method for grinding the internal teeth of the gear ring, which is characterized by comprising the following steps:
the method comprises the following steps: clamping a gear ring to be ground on a rotating table through a clamping piece;
step two: the internal tooth grinding mechanism moves downwards to a preset position;
step three: the first screw rod rotates to enable the lifting rod to move downwards, the connecting rod drives the telescopic rod to move, the lower end of the telescopic rod moves outwards, and the grinding disc is driven to move to the position of the corresponding tooth valley;
step four: the grinding disc rotates to grind;
step five: after grinding for a period of time, stopping the rotation of the grinding disc;
step six: the first screw rod rotates reversely to enable the lifting rod to move downwards, the connecting rod drives the telescopic rod to move, the lower end of the telescopic rod moves inwards, and then the grinding disc is driven to move out of the corresponding tooth valley;
step seven: rotating the rotating table by a preset angle;
step eight: and step three is executed again until all the teeth are ground.
Preferably, before the fourth step is executed, the slide block moves upwards to drive the connecting plate to move so as to push the slide plate to move along the direction away from the axis of the main rod, so that the balls abut against the grinding disc; when the fourth step is executed, the wear detection mechanism monitors the thickness of the grinding disc in real time; when the data detected by the sensor reaches a preset value, the grinding disc stops rotating; the first screw rod rotates reversely to enable the lifting rod to move downwards, and the connecting rod drives the telescopic rod to move so that the lower end of the telescopic rod moves inwards; the sliding plate moves a certain distance towards the main rod to enable the balls to be separated from the grinding disc; replacing the grinding disc by an operator; after the replacement is finished, the sliding plate moves towards the direction far away from the main rod, so that the ball bearing is pressed on the grinding disc again; and re-executing the third step.
Compared with the prior art, the invention has the beneficial effects that:
1) the synchronous outer supporting mechanism simultaneously supports the three grinding mechanisms, so that the inner gear ring is ground at three angles simultaneously;
2) the invention is provided with a wear detection mechanism which detects the corresponding grinding mechanism in real time, and can replace the grinding disc in time when the grinding disc is worn to a certain degree.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the internal gear lapping mechanism and the internal gear ring;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a schematic perspective view of the grinding mechanism and the wear detection mechanism;
FIG. 5 is a cross-sectional view taken at A-A of FIG. 3;
FIG. 6 is a top view of FIG. 2;
FIG. 7 is a schematic perspective view of an internal tooth grinding mechanism;
FIG. 8 is an enlarged schematic view at B of FIG. 7;
FIG. 9 is a front view of FIG. 4;
FIG. 10 is a cross-sectional view taken at C-C of FIG. 9;
FIG. 11 is a cross-sectional view taken at D-D of FIG. 9;
FIG. 12 is an enlarged schematic view at E of FIG. 5;
FIG. 13 is a top view of FIG. 4;
fig. 14 is a partial perspective sectional view at F-F of fig. 13.
Detailed Description
For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
A grinding device for grinding the internal teeth of a ring gear comprises a base 11, a rotary table 1 rotatably provided on the base 11, a clamp 2 provided on the rotary table 1 for fixing a ring gear 1a, and an internal tooth grinding mechanism 3 provided on the base 11 movably up and down and located right above the rotary table 1. When grinding is performed, the ring gear 1a is fixed to the rotary table by the clamp 2, and the internal tooth grinding mechanism 3 is moved down to a predetermined position to grind the internal teeth. Specifically, a lifting mechanism 4 is arranged on the base 11, and the lifting mechanism 4 is used for driving the internal tooth grinding mechanism 3 to move up and down.
Further, the internal tooth grinding mechanism 3 includes a grinding module 3a and a synchronous external support mechanism 3b for driving the grinding module 3a to move outwards, and the synchronous external support mechanism 3b is arranged on the lifting mechanism 4. The grinding modules 3a are three, and the three grinding modules 3a are all arranged on the synchronous external support mechanism 3b and are arranged on a first circumference at equal angles, and the circle center of the first circumference is positioned on the rotation axis of the rotating table 1.
Each grinding module 3a comprises a shaft bracket 3a2 and a grinding disc 3a1 rotatably arranged on the shaft bracket 3a2, the rotation axis of the grinding disc 3a1 is horizontally arranged, the rotation axes of the three grinding discs 3a1 are positioned on the same horizontal plane, and the included angle between the three grinding discs is 60 degrees. The shaft bracket 3a2 is provided on the synchronizing outrigger mechanism 3 b. The grinding disc 3a1 is rotatably arranged on a shaft connecting frame 3a2 through a rotating shaft 3a3, a rotating motor 3a4 is arranged on the shaft connecting frame 3a2, an output shaft of the rotating motor 3a4 is in transmission connection with the rotating shaft 3a3, and the grinding disc 3a1 can be driven to rotate through the rotating motor 3a 4. During grinding, the side surface of the outer edge of the grinding disk 3a1 is in contact with the internal tooth surface of the ring gear to achieve grinding. After finishing once polishing, synchronous external support mechanism 3b drives abrasive disc 3a1 synchronous retraction, and revolving stage 1 drives the ring gear to rotate a certain angle. When the thickness of the gear ring 1a is large, the lifting mechanism 4 can be controlled to drive the internal tooth grinding mechanism 3 to move up and down.
The rotating shaft 3a3 is a square column structure with two cylindrical ends at the middle part, the output shaft of the rotating motor 3a4 is a square shaft, the end part of the rotating shaft 3a3 is provided with a square opening capable of being sleeved on the square shaft, the shaft center of the grinding disc 3a1 is provided with a square hole capable of being sleeved on the square column part, the rotating shaft 3a3 is sleeved on the square shaft of the rotating motor 3a4 through the square opening and the grinding disc 3a1 is sleeved on the square column part of the rotating shaft 3a3 through the square hole, one end of the rotating shaft 3a3 far away from the rotating motor 3a4 is also provided with a circular convex column 3a31 with a diameter smaller than that of the cylindrical part, and the shaft connecting frame 2 is further fixedly provided with a limiting disc 3a32 sleeved on the circular convex column 3a 31.
The synchronous external support mechanism 3b comprises a main rod 3b1, a lifting rod 3b2, a telescopic rod 3b3, a connecting rod 3b4 and a horizontal linkage 3b9, wherein the main rod 3b1 is fixed on the lifting mechanism 4, the axis of the main rod 3b1 is collinear with the axis of the gear ring 1a on the rotating platform 1, the main rod 3b1 is of a hollow structure, the axis of the lifting rod 3b2 is collinear with the axis of the main rod 3b1, the upper end of the lifting rod 3b2 is inserted into the main rod 3b1 in a manner of being capable of moving up and down, the lifting rod 3b2 is not capable of rotating relative to the main rod 3b1, the telescopic rods 3b3 are provided with three groups, three groups of telescopic rods 3b3 are arranged at equal angles relative to the axis of the main rod 3b1, each group of the telescopic rods 3b3 comprises a movable rod 3b32 and a sleeve 3b31, a first hinge loop 6 is fixed on the main rod 3b1, the upper end of the sleeve 6 is inserted into the lower end of the sleeve 6b 6, the lower end of the movable rod 3b32 is hinged on the shaft connecting frame 3a 2. A second hinge collar 3b7 is fixed to a portion of the lift lever 3b2 that is not inserted into the main lever 3b1, a third hinge collar 3b8 is provided at a lower end of each of the sleeves 3b31, the links 3b4 have three sets, a lower end of each set of links 3b4 is hinged to the second hinge collar 3b7, and an upper end is hinged to the corresponding third hinge collar 3b 8. An end disc 3b93 is provided on the lifting bar 3b2 below the second hinge collar 3b7, the horizontal linkage members 3b9 have three sets, each set of horizontal linkage members 3b9 including a first linkage member 3b91 and a second linkage member 3b92, one end of the first linkage piece 3b91 is hinged on the end disc 3b93, the other end of the first linkage piece 3b91 is hinged with one end of the second linkage piece 3b92, the other end of the second linkage piece 3b92 is hinged with the corresponding shaft connecting frame 3a2, the first linkage piece 3b91 is vertically arranged relative to the hinge axis of the end disc, the hinge axis of the second linkage piece 3b92 and the first linkage piece 3b91 and the hinge axis of the second linkage piece 3b92, when the lifting rod 3b2 is lifted, the connecting rod 3b4 drives the telescopic rod 3b3 to swing around the hinge axis of the telescopic rod 3b 3526 and the first hinge lantern ring 3b6, so that the lower end of the telescopic rod 3b3 is close to or far away from the gear ring 1 a. When the lifting rod 3b2 is not moved, the connecting rod 3b4 is not moved, the telescopic rod 3b3 is not moved, although the shaft-connecting frame 3a2 is hinged with the movable rod 3b32, because the second linkage piece 3b92 only can extend and retract in a horizontal plane, the horizontal linkage piece 3b9 prevents the shaft-connecting frame 3a2 from swinging relative to the movable rod 3b32, and therefore, the grinding disc 3a1 can be prevented from swinging relative to the movable rod 3b32 during grinding, when the lifting rod 3b2 moves up and down, the grinding disc 3a1 can be driven to be close to or far away from the axis of the lifting rod 3b2, but the relative positions of the grinding disc 3a1 and the horizontal linkage piece 3b9 in the up and down direction are kept unchanged, and when the lifting rod 3b2 moves up and down, the movable rod 3b32 can extend and retract relative to the sleeve 3b 31. Preferably, a first screw 3b5 is rotatably provided in the main lever 3b1, the lifting lever 3b2 is provided with a female screw hole into which the first screw 3b5 can be inserted, and the lifting of the lifting lever 3b2 can be achieved by controlling the rotation of the first screw 3b 5. The rotation of the first screw 3b5 is driven by a motor. The cross section of the upper end of the lifting rod 3b2 is square, and the cross section of the lower end is round. The hollow structure of the main lever 3b1 is also square in cross section, so that the lifting rod 3b2 can be prevented from rotating relative to the main lever 3b 1.
Each grinding module 3a further comprises a wear detection mechanism 5, each wear detection mechanism 5 comprises two abutting components 5a and a pressure sensor 5b, the two abutting components 5a are symmetrically arranged on the shaft connecting frame 3a2, the symmetrical surfaces of the two abutting components 5a penetrate through the middle section of the grinding disc 3a1, the two abutting components 5a are located on one side, close to the lifting rod 3b2, of the shaft connecting frame 3a2, and a trigger 5c is further arranged between the pressure sensor 5b and one abutting component 5a close to the pressure sensor 5 b. The two abutting assemblies 5a abut against the two sides of the outer edge of the grinding disc 3a1 from the two sides of the grinding disc 3a1, and then can move along with the change of the thickness of the grinding disc 3a1, the pressure sensor 5b can move along with the abutting assemblies 5a through the trigger 5c, and whether the abrasion of the grinding disc 3a1 reaches the degree of needing to be replaced or not can be judged according to the change of the pressure sensor 5 b. Of course, the pressure sensor 5b may be replaced by a distance sensor. When the grinding disc 3a1 needs to be replaced, the synchronous external support mechanism 3b drives the grinding module 3a to retract inwards for a certain distance, so that the grinding disc 3a1 is separated from the internal teeth, then the lifting mechanism 4 drives the internal tooth grinding module 3 to move upwards for a certain distance, and the grinding disc is replaced by a worker.
Each of the pressing assemblies 5a includes a ball 5a1 and a mounting shell 5a2, the ball 5a1 is rotatably disposed in the mounting shell 5a2, a side of the ball 5a1 facing the grinding disk 3a1 is exposed from the mounting shell 5a2, a portion of the ball 5a1 exposed from the mounting shell 5a2 is pressed against a surface of the grinding disk 3a1, an insertion rod 5a21 is disposed on a side of the mounting shell 5a2 facing away from the grinding disk 3a1, a sliding plate 5a3 is slidably disposed at a position of the shaft bracket 3a2 corresponding to each pressing assembly 5a, and the sliding plate 5a3 is slidable relative to the shaft bracket 3a2 in a direction approaching or departing from an axis of the main rod 3b1 so that the pressing assembly 5a can press the grinding disk 3a1 or disengage from the grinding disk 3a 1. When the grinding disc 3a1 needs to be replaced, the balls 5a1 are abutted against the grinding disc 3a1 in normal use, and the balls 5a1 move towards the main rod 3b1 and are separated from the grinding disc 3a 1.
A return spring 5a22 is arranged on the inserted link 5a21, one end of the return spring 5a22 abuts against the mounting shell 5a2, the other end abuts against the corresponding sliding plate 5a3, and the return spring 5a22 is in a compressed state all the time.
The pressure sensor 5b is arranged on the trigger 5c, the trigger 5c is connected with the inserted link 5a21, the detection end of the pressure sensor 5b detects along the axial direction of the grinding disc 3a1 and towards the direction of the shaft bracket 3a2, when the grinding disc 3a1 is worn, the ball 5a1 and the inserted link 5a21 move towards the symmetrical surface under the driving of the return spring 5a22, and further the pressure sensor 5b is driven to move towards the shaft bracket 3a2, when the pressure sensor 5b detects that the pressure sensor abuts against the shaft bracket 3a2, the grinding disc 3a1 needs to be replaced.
The trigger 5c comprises a pressure plate 5c1 and a guide rod 5c3, wherein the guide rod 5c3 is arranged on a shaft bracket 3a2, the axis of the guide rod is parallel to the axis of the plug rod 5a21, and the pressure plate 5c1 is slidably arranged on the guide rod 5c 3. Another return spring may be provided on the guide bar 5c3, which is capable of moving the pressure plate 5c1 along the guide bar 5c3 in the direction of the spindle bracket 3a 2.
A ball-shaped sleeve 5a23 is provided on one plunger 5a21 that contacts the pressure plate 5c1, and the sliding plate 5a3 is facilitated to press against the pressure plate 5c1 when moving through the ball-shaped sleeve 5a 23.
The grinding device further comprises a linkage propulsion mechanism 6, and the linkage propulsion mechanism 6 can drive the sliding plate 5a3 to slide back and forth along the sliding direction. The linkage propulsion mechanism 6 comprises a sleeve rod 6a arranged on the lower surface of the end disc 3b93 and a sliding block 6b arranged in the sleeve rod 6a in a sliding mode, the sleeve rod 6a and the end disc 3b93 are arranged coaxially, a second screw rod 6c is rotatably arranged in the sleeve rod 6a, the second screw rod 6c is connected with the sliding block 6b through threads, and the sliding block 6b can be driven to move up and down through rotation of the second screw rod 6 c. The linkage propelling mechanism 6 further comprises three connecting plates 6d, each connecting plate 6d is connected with two sliding plates 5a3 on the corresponding abutting assembly 5a, a push rod 6e is arranged between each connecting plate 5d and the corresponding sliding block 6b, two ends of each push rod 6e are respectively hinged on the corresponding sliding block 6b and the corresponding connecting plate 6d, each connecting plate 6d is further provided with a distance measuring sensor 6f, and each distance measuring sensor 6f is configured in such a way that when the sliding plate 5a3 moves to the right position, the detection direction of the distance measuring sensor passes through the circle center of the corresponding grinding disc 3a1, the distance from the detection end of the distance measuring sensor 6f to the grinding disc 3a1 is shortest, and when the distance between the distance measuring sensor 6f and the grinding disc 3a1 is detected to be the shortest distance, the connecting plate 6d moves to the right position, and the second screw 6c stops rotating. The second screw 6c is driven by a motor.
The linkage propulsion mechanism 6 may take other forms and may take the form of the horizontal linkage previously described, to which an active drive mechanism is applied.
The above examples only show one or more embodiments of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A grinding apparatus for grinding internal teeth of a ring gear, comprising:
a base;
the rotating platform is rotatably arranged on the base;
the clamping piece is arranged on the rotating table and used for fixing the gear ring;
the internal tooth grinding mechanism is arranged on the base in a vertically movable manner and is positioned right above the rotating table; it is characterized in that the preparation method is characterized in that,
the internal tooth grinding mechanism comprises three grinding modules and a synchronous external support mechanism for driving the grinding modules to move inside and outside, the three grinding modules are all arranged on the synchronous external support mechanism and are arranged on a first circumference at equal angles, and the circle center of the first circumference is positioned on the rotating axis of the rotating table; each grinding module comprises:
the shaft connecting frame is arranged on the synchronous external support mechanism;
the grinding discs are rotatably arranged on the shaft connecting frame, the rotating axes of the grinding discs are horizontally arranged, the rotating axes of the three grinding discs are positioned on the same horizontal plane, and the included angle between the rotating axes of the three grinding discs and the rotating axes of the three grinding discs is 60 degrees.
2. A grinding apparatus for grinding internal teeth of a ring gear according to claim 1, characterized in that the synchronous outrigger mechanism comprises:
the main rod is supported on the base in a vertically movable mode, the axis of the main rod is collinear with the axis of the rotating table and is of a hollow structure, and a first screw rod is arranged in the hollow structure;
the upper end of the lifting rod is inserted into the hollow structure from the lower end of the main rod and can move up and down relative to the main rod, the lifting rod is not rotatable relative to the main rod, and the lifting rod is in threaded connection with the first screw rod;
the three telescopic rods respectively correspond to the three grinding modules, one end of each telescopic rod is hinged to the main rod, and the other end of each telescopic rod is hinged to the corresponding coupling frame;
and the three connecting rods respectively correspond to the three telescopic rods, one end of each connecting rod is hinged to the lifting rod, and the other end of each connecting rod is hinged to the corresponding telescopic rod.
3. The apparatus as claimed in claim 2, wherein each of the telescopic rods includes a movable rod and a sleeve, a first hinge collar is fixed to the main rod, an upper end of the sleeve is hinged to the first hinge collar, an upper end of the movable rod is inserted from a lower end of the sleeve, a lower end of the movable rod is hinged to the coupling frame, a second hinge collar is fixed to a portion of the lift rod not inserted into the main rod, a third hinge collar is provided to a lower end of each of the sleeves, a lower end of each of the connecting rods is hinged to the second hinge collar, and an upper end of each of the connecting rods is hinged to the corresponding third hinge collar.
4. The grinding device for grinding the internal teeth of the gear ring according to claim 3, wherein the synchronous external support mechanism further comprises three groups of horizontal linkage members, each group of horizontal linkage members comprises a first linkage member and a second linkage member, one end of the first linkage member is hinged to an end disc, the end disc is arranged on the lifting rod and located below the second hinged lantern ring, the other end of the first linkage member is hinged to one end of the second linkage member, the other end of the second linkage member is hinged to a corresponding shaft connecting frame, and the first linkage member is vertically arranged relative to the hinge axis of the end disc, the hinge axis of the second linkage member and the first linkage member, and the hinge axis of the second linkage member.
5. A lapping device for lapping inner teeth of a ring gear according to claim 4, wherein each lapping module further comprises a wear detection mechanism comprising:
a sensor;
the pressing assemblies are arranged, the pressing assemblies are two groups, one group of pressing assemblies is connected with the sensor through the trigger piece, the two groups of pressing assemblies are symmetrically arranged on the coupling frame, the symmetrical surfaces of the two pressing assemblies penetrate through the middle section of the grinding disc, the two pressing assemblies are located on one side, close to the lifting rod, of the coupling frame, the two pressing assemblies press the two sides of the outer edge of the grinding disc from the two sides of the grinding disc to move along with the change of the thickness of the grinding disc, the pressure sensor can move along with the pressing assemblies through the trigger piece, and whether the abrasion of the grinding disc reaches the degree required to be replaced or not can be judged according to the data change of the sensor.
6. A grinding apparatus for grinding internal teeth of a ring gear according to claim 5, wherein each of the urging assemblies comprises:
a ball bearing;
the ball bearing is rotatably arranged in the mounting shell, one side of the ball bearing facing the grinding disc is exposed out of the mounting shell, and the part of the ball bearing exposed out of the mounting shell is pressed against the surface of the grinding disc;
the insert rod is arranged on one side of the mounting shell, which is far away from the grinding disc;
a sliding plate slidably disposed at a position of the shaft joint frame corresponding to each pressing component, the sliding plate being slidable relative to the shaft joint frame in a direction approaching or departing from the axis of the main rod so that the pressing component can press against or separate from the grinding disc;
the reset spring is arranged on the inserted rod, one end of the reset spring is abutted against the installation shell, the other end of the reset spring is abutted against the corresponding sliding plate, and the reset spring is always in a compressed state.
7. The grinding apparatus for grinding internal teeth of a ring gear according to claim 6, further comprising a link propulsion mechanism capable of driving the slide plate to slide back and forth in a sliding direction; the linkage propulsion mechanism comprises:
the sleeve rod is arranged on the lower surface of the end disc, the axis of the sleeve rod is collinear with the axis of the main rod, and a second screw rod is rotatably arranged in the sleeve rod;
the sliding block is arranged on the loop bar in a vertically movable mode and is in threaded connection with the second screw rod;
the number of the connecting plates is three, and the sliding plates of the two groups of abutting components on each grinding module are provided with one connecting plate;
and the push rods are provided with three numbers, one end of each push rod is hinged on one connecting plate, and the other end of each push rod is hinged on the sliding block.
8. A grinding method for grinding internal teeth of a ring gear, using the grinding apparatus of claim 7, characterized by comprising the steps of:
the method comprises the following steps: clamping a gear ring to be ground on a rotating table through a clamping piece;
step two: the internal tooth grinding mechanism moves downwards to a preset position;
step three: the first screw rod rotates to enable the lifting rod to move downwards, the connecting rod drives the telescopic rod to move, the lower end of the telescopic rod moves outwards, and the grinding disc is driven to move to the position of the corresponding tooth valley;
step four: the grinding disc rotates to grind;
step five: after grinding for a period of time, stopping rotation of the grinding disc;
step six: the first screw rod rotates reversely, so that the lifting rod moves downwards, the connecting rod drives the telescopic rod to move, the lower end of the telescopic rod moves inwards, and the grinding disc is driven to move out of the corresponding tooth valley;
step seven: rotating the rotating table by a preset angle;
step eight: and step three is executed again until all the teeth are ground.
9. The lapping method of claim 8, wherein before performing step four, the slider is moved upward, moving the connecting plate to push the slide plate to move in a direction away from the axis of the main rod, so that the balls abut against the lapping plate; when the step four is executed, the wear detection mechanism monitors the thickness of the grinding disc in real time; when the data detected by the sensor reaches a preset value, the grinding disc stops rotating; the first screw rod rotates reversely to enable the lifting rod to move downwards, and the connecting rod drives the telescopic rod to move so that the lower end of the telescopic rod moves inwards; the sliding plate moves a certain distance towards the main rod to enable the balls to be separated from the grinding disc; replacing the grinding disc by an operator; after the replacement is finished, the sliding plate moves towards the direction far away from the main rod, so that the ball bearing is pressed on the grinding disc again; and re-executing the third step.
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| CN202210626103.3A CN114986378B (en) | 2022-06-02 | 2022-06-02 | Grinding device and grinding method for grinding internal teeth of gear ring |
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| CN202210626103.3A CN114986378B (en) | 2022-06-02 | 2022-06-02 | Grinding device and grinding method for grinding internal teeth of gear ring |
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| CN117696149A (en) * | 2024-02-06 | 2024-03-15 | 甘肃传祁乳业有限公司 | Soybean grinding equipment for dairy product processing |
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| CN114986378B (en) | 2023-05-23 |
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