CN113910063A - Polygonal special-shaped eccentric grinding device and method thereof - Google Patents
Polygonal special-shaped eccentric grinding device and method thereof Download PDFInfo
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- CN113910063A CN113910063A CN202111114762.0A CN202111114762A CN113910063A CN 113910063 A CN113910063 A CN 113910063A CN 202111114762 A CN202111114762 A CN 202111114762A CN 113910063 A CN113910063 A CN 113910063A
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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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
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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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
- B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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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
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to the technical field of grinding processing, in particular to a polygonal special-shaped eccentric grinding device which comprises a grinding belt, wherein one side of the grinding belt is supported by a first pushing mechanism, an outer wall surface supporting roller and a second pushing mechanism in a matched mode to form a V-shaped structure, the first pushing mechanism and the second pushing mechanism are respectively arranged on a fixed clamping frame and a movable clamping frame, one ends of the fixed clamping frame and one end of the movable clamping frame are hinged, and a first telescopic cylinder is connected between the fixed clamping frame and the movable clamping frame; the first pushing and pressing mechanism comprises a plurality of pushing and pressing plate strips which are distributed at equal intervals, one ends of the pushing and pressing plate strips are abutted to the inner wall of the grinding belt, and pushing and pressing rollers are respectively connected to the two sides of the pushing and pressing plate strips in a rolling mode.
Description
Technical Field
The invention relates to the technical field of grinding processing, in particular to a polygonal special-shaped eccentric grinding device and a method thereof.
Background
The grinding is a processing method for cutting off redundant materials on a workpiece by using an abrasive material and a grinding tool, the grinding processing method has various forms according to different process purposes and requirements, and in order to meet development requirements, the grinding technology develops towards precision, low roughness, high efficiency, high speed and automatic grinding. And grinding processing belongs to finish machining in mechanical processing, the processing amount is small, the precision is high, and the application is wide in the mechanical manufacturing industry.
In the prior art, the following problems exist:
(1) the existing grinding machine needs to replace different grinding accessories when grinding workpieces such as polygonal special-shaped eccentric workpieces, the grinding tool can be guaranteed to be in stable contact with the workpieces, and the grinding efficiency is low.
(2) The existing grinding machine generally grinds in a mode of driving a workpiece to rotate or a grinding wheel to rotate in the working process, and the direction change of the acting force applied to the workpiece is small in the grinding process, so that the grinding efficiency is low.
Disclosure of Invention
The invention aims to provide a polygonal special-shaped eccentric grinding device and a method thereof, which aim to solve the problems in the background technology.
The technical scheme of the invention is as follows: the polygonal special-shaped eccentric grinding device comprises a grinding belt, wherein one side of the grinding belt is supported by a first pushing mechanism, an outer wall surface supporting roller and a second pushing mechanism in a matched mode to form a V-shaped structure, the first pushing mechanism and the second pushing mechanism are respectively arranged on a fixed clamping frame and a movable clamping frame, one ends of the fixed clamping frame and one end of the movable clamping frame are hinged, and a first telescopic cylinder is connected between the fixed clamping frame and the movable clamping frame;
first pushing and pressing mechanism includes the pushing and pressing lath that a plurality of equidistance distributes, pushes away the one end top of pressing lath on the inner wall in grinding area, and pushes away the both sides of lath and have the pressure roller of pushing away respectively roll connection, and the one end of pushing away the pressure roller is connected with first motor, second pushing and pressing mechanism is the same with first pushing and pressing mechanism's structure.
Preferably, the bottom of the fixed clamping frame is equidistantly provided with limiting battens, the limiting battens and the pushing battens are distributed in a staggered manner, and the limiting battens are in sliding fit with the pushing battens;
a plurality of pushing rollers are arranged on each side of the pushing plate strip, a driving wheel is arranged at one end of each pushing roller, the driving wheels are linked through a driving belt, one end of one pushing roller on one side of each pushing plate strip is connected with a first motor, and the first motor is fixedly arranged on the fixed clamping frame;
and a grinding belt supporting roller is arranged at one end of the fixed clamping frame and is propped against the inner wall of the grinding belt.
Preferably, one end of the pushing plate strip is pressed against the inner wall of the grinding belt through a rotating shaft, the rotating shaft is rotatably connected with the pushing plate strip, and the rotating shaft is in rolling connection with the grinding belt.
Preferably, a plurality of shaft levers are supported on the inner wall of the grinding belt, two ends of each shaft lever are respectively connected with a side frame, and one end of one shaft lever penetrates through the side frame and is connected with a fourth motor;
the grinding belt is of a double-layer structure, and the inner layer of the grinding belt is a strap;
and two sides of the fixed clamping frame are fixedly connected with the side frame.
Preferably, the fixed clamping frame and the movable clamping frame are rotatably hinged through a support shaft, and two ends of the support shaft are respectively connected with the side frames;
the first telescopic cylinder is rotatably arranged on the fixed clamping frame, and one end of the first telescopic cylinder is hinged with the movable clamping frame.
Preferably, a tension roller is supported on the inner wall of the grinding belt in a rolling manner, an elastic telescopic rod is connected to one side of the tension roller and comprises a spring, a sleeve and a straight rod, the straight rod is inserted into the sleeve in a sliding manner, one end of the straight rod is connected with the tension roller, one end of the straight rod, which is located in the sleeve, is connected with one end of the spring, the other end of the spring is connected with the bottom edge of the sleeve, one end of the sleeve is connected with a cross rod, and two ends of the cross rod are fixedly connected with the side frames respectively.
Preferably, the grinding belt is correspondingly provided with a three-jaw chuck and a pressure head at two sides of the V-shaped structure, one side of the three-jaw chuck, which is far away from the pressure head, is connected with a second motor, one side of the pressure head, which is far away from the three-jaw chuck, is rotatably connected with a second telescopic cylinder, the grinding belt is correspondingly provided with a workpiece clamping frame at the position of the V-shaped structure, and the second motor and the second telescopic cylinder are respectively and fixedly arranged at two sides of the upper end of the workpiece clamping frame.
Preferably, two sides of the workpiece clamping frame are respectively provided with a supporting slide rod, and the supporting slide rods penetrate through the side frames in a sliding manner;
one end of the supporting sliding rod is hinged with a push-pull rod, one end of the push-pull rod is hinged with an eccentric wheel, the middle of one side of the eccentric wheel is connected with a third motor, and the third motor is fixedly installed on the side frame.
The invention also discloses a polygonal special-shaped eccentric grinding method, which comprises the following steps:
s1: placing a workpiece between the three-jaw chuck and the pressure head, and clamping and positioning the workpiece to a V-shaped structure at one side of the grinding belt;
s2: controlling the first telescopic cylinder to contract, pulling the fixed clamping frame and the movable clamping frame to rotate to be close to each other, and enabling the first pushing mechanism and the second pushing mechanism to push the V-shaped structure of the grinding belt to clamp the workpiece;
s3: the fourth motor is started to drive the grinding belt to rotate, the outer wall of the workpiece clamped in the V-shaped structure of the grinding belt is continuously rubbed by the grinding belt, and meanwhile, the first motor is started to enable the pushing plate strip to push the grinding belt, so that the grinding belt is always kept in contact with the workpiece, and the purpose of grinding is achieved;
s4: and starting the second motor to drive the clamped workpiece to rotate, and starting the third motor to drive the clamped workpiece to rapidly reciprocate to move transversely, so as to accelerate grinding.
The invention provides a polygonal special-shaped eccentric grinding device and a method thereof through improvement, compared with the prior art, the polygonal special-shaped eccentric grinding device has the following improvements and advantages:
one is as follows: according to the invention, the workpiece can be conveniently clamped in the V-shaped structure on one side of the grinding belt, and the grinding belt can be always attached to the polygonal special-shaped eccentric workpiece by utilizing the pushing effect of the pushing plate strip without replacing different grinding tools, so that the grinding work is more convenient and efficient;
the second step is as follows: according to the invention, the first motor can be used for driving the pushing and pressing rollers to rotate, and the plurality of pushing and pressing rollers can be synchronously driven to rotate by the first motor through the transmission action of the transmission wheel and the transmission belt, and can be matched together to play a role, so that the pushing and pressing battens can be pushed more stably;
and thirdly: according to the invention, the rotating shaft can convert sliding friction between the pushing plate strip and the grinding belt into rolling friction, so that the friction force between the pushing plate strip and the grinding belt is reduced, and the grinding belt can run more smoothly in the process of being pushed by the pushing plate strip;
fourthly, the method comprises the following steps: according to the invention, the tensioning roller can elastically support the grinding belt under the support of the elastic telescopic rod, the elastic telescopic rod can automatically stretch and retract under the action of the spring along with the change of the loosening and tensioning states of the grinding belt, the tensioning roller is adjusted to be always in contact with the inner wall of the grinding belt, the support of the grinding belt is kept, and the grinding belt can run more stably;
and fifthly: according to the invention, the three-jaw chuck can clamp one end of a workpiece, the pressure head can push the other end of the workpiece under the pushing of the second telescopic cylinder to enable the workpiece to be positioned, and the three-jaw chuck is driven to rotate through the second motor to drive the workpiece to rotate together, so that the workpiece is ground by the grinding belt in the rotating process, and the grinding efficiency is improved;
and the sixth step: according to the invention, the third motor drives one end of the push-pull rod to eccentrically rotate through the eccentric wheel, so that the other end of the push-pull rod can perform a push-pull action on the supporting slide rod, the workpiece clamping frame can rapidly and transversely reciprocate by using the supporting slide rod as a support, further, a workpiece clamped on the workpiece clamping frame can rapidly and transversely reciprocate, and a synchronous transverse grinding action is added under the actions of workpiece autorotation grinding and grinding belt rotation grinding, thereby improving the grinding effect.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a side view of the internal structure of the present invention;
FIG. 2 is an enlarged schematic view of the invention at A in FIG. 1;
FIG. 3 is a top view of the first biasing mechanism of the present invention;
FIG. 4 is a schematic view of the internal structure of the elastic telescopic rod of the present invention;
FIG. 5 is a front view of the present invention;
FIG. 6 is a front view of the push plate strip of the present invention;
FIG. 7 is a cross-sectional view of the grinding belt of the present invention;
fig. 8 is a front view of the workpiece holder of the present invention.
Description of reference numerals: 1. the device comprises a fixed clamping frame, 2, a first pushing mechanism, 21, a first motor, 22, a transmission belt, 23, a transmission wheel, 24, a limiting lath, 25, a pushing lath, 251, a rotating shaft, 26, a pushing roller, 27, a grinding belt supporting roller, 3, a first telescopic cylinder, 4, a movable clamping frame, 5, a second pushing mechanism, 6, a grinding belt, 61, a strap, 62, a shaft rod, 63, a fourth motor, 7, a side frame, 8, a tensioning roller, 81, an elastic telescopic rod, 811, a spring, 812, a sleeve, 813, a straight rod, 82, a cross rod, 9, a workpiece clamping frame, 91, a second motor, 92, a three-jaw chuck, 93, a pressure head, 94, a second telescopic cylinder, 95, a supporting sliding rod, 96, a push-pull rod, 97, an eccentric wheel, 98, a third motor, 10, a supporting shaft, 11 and an outer wall surface supporting roller.
Detailed Description
The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a polygonal special-shaped eccentric grinding device and a method thereof through improvement, and the technical scheme of the invention is as follows:
as shown in fig. 1-8, the polygonal special-shaped eccentric grinding device comprises a grinding belt 6, wherein one side of the grinding belt 6 is supported by a first pushing mechanism 2, an outer wall surface supporting roller 11 and a second pushing mechanism 5 in a matched manner to form a V-shaped structure, the first pushing mechanism 2 and the second pushing mechanism 5 are respectively arranged on a fixed clamping frame 1 and a movable clamping frame 4, one ends of the fixed clamping frame 1 and the movable clamping frame 4 are hinged, a first telescopic cylinder 3 is connected between the fixed clamping frame 1 and the movable clamping frame 4, and the first telescopic cylinder 3 is a hydraulic cylinder;
the first pushing mechanism 2 comprises a plurality of pushing laths 25 distributed at equal intervals, one end of each pushing lath 25 is abutted to the inner wall of the grinding belt 6, two sides of each pushing lath 25 are respectively connected with a pushing roller 26 in a rolling mode, one end of each pushing roller 26 is connected with the first motor 21, and the second pushing mechanism 5 is the same as the first pushing mechanism 2 in structure.
Through the V-shaped structure on one side of the grinding belt 6, the workpiece can be conveniently clamped in the V-shaped structure, the pushing and pressing effect of the pushing and pressing plate strip 25 is utilized, the grinding belt 6 can be always attached to the workpiece with the polygonal special-shaped eccentricity, different grinding tools do not need to be replaced, and the grinding work is more convenient and efficient.
The bottom of the fixed clamping frame 1 is equidistantly provided with limiting battens 24, the limiting battens 24 and the pushing plate strips 25 are distributed in a staggered manner, and the limiting battens 24 are in sliding fit with the pushing plate strips 25; the limiting laths 24 can limit two side surfaces of the pushing lath 25, so that the pushing lath 25 cannot be inclined in the process of sliding up and down, and the pushing lath 25 can support the grinding belt 6 more stably;
a plurality of pushing rollers 26 are arranged on each side of the pushing lath 25, one end of each pushing roller 26 is provided with a driving wheel 23, the driving wheels 23 are linked through a driving belt 22, one end of one pushing roller 26 on one side of the pushing lath 25 is connected with a first motor 21, and the first motor 21 is fixedly arranged on the fixed clamping frame 1; the first motor 21 can drive the pushing and pressing roller 26 to rotate, and the plurality of pushing and pressing rollers 26 can be synchronously driven to rotate by the first motor 21 through the transmission function of the transmission wheel 23 and the transmission belt 22, and the plurality of pushing and pressing rollers 26 are matched to play a role together, so that the pushing and pressing lath 25 can be pushed more stably;
one end of the fixed clamping frame 1 is provided with a grinding belt supporting roller 27, and the grinding belt supporting roller 27 is pressed against the inner wall of the grinding belt 6; the grinding belt supporting roller 27 can support the grinding belt 6 to prevent the grinding belt 6 from pressing on the fixing jig 1.
One end of the pushing plate strip 25 is pressed against the inner wall of the grinding belt 6 through a rotating shaft 251, the rotating shaft 251 is rotatably connected with the pushing plate strip 25, and the rotating shaft 251 is in rolling connection with the grinding belt 6; the rotating shaft 251 can convert sliding friction between the pushing plate strip 25 and the grinding belt 6 into rolling friction, so that friction force between the pushing plate strip 25 and the grinding belt 6 is reduced, and the grinding belt 6 can run more smoothly in the process of being pushed by the pushing plate strip 25.
A plurality of shaft rods 62 are supported on the inner wall of the grinding belt 6, two ends of each shaft rod 62 are respectively connected with the side frames 7, and one end of one shaft rod 62 penetrates through each side frame 7 and is connected with a fourth motor 63; the fourth motor 63 can drive the grinding belt 6 to rotate through the shaft rod 62, so that the grinding belt 6 is ground in the rotating process, and the grinding efficiency is guaranteed;
the grinding belt 6 is of a double-layer structure, and the inner layer of the grinding belt 6 is a strap 61; the straps 61 are made of rubber, and the friction force is larger when the straps 61 made of rubber are in supporting contact with the shaft rod 62 and the like, so that the grinding belt 6 is more stable and is not easy to deviate in the operation process;
two sides of the fixed clamping frame 1 are fixedly connected with the side frame 7, and the two sides are fixedly connected or welded through bolts; the side frame 7 can provide support for the fixing clip 1, so that the fixing clip 1 is stable.
The fixed clamping frame 1 and the movable clamping frame 4 are rotatably hinged through a support shaft 10, two ends of the support shaft 10 are respectively connected with the side frames 7, and the support shaft 10 is fixedly connected with the side frames 7; the fixed clamping frame 1 and the movable clamping frame 4 can stably rotate relatively by the support of the support shaft 10;
the first telescopic cylinder 3 is rotatably arranged on the fixed clamping frame 1, and one end of the first telescopic cylinder 3 is hinged with the movable clamping frame 4; the first telescopic cylinder 3 can push and pull the movable clamping frame 4 through stretching, so that the movable clamping frame 4 and the fixed clamping frame 1 can be automatically clamped or opened.
A tension roller 8 is supported on the inner wall of the grinding belt 6 in a rolling manner, an elastic telescopic rod 81 is connected to one side of the tension roller 8, the elastic telescopic rod 81 comprises a spring 811, a sleeve 812 and a straight rod 813, the straight rod 813 is inserted into the sleeve 812 in a sliding manner, one end of the straight rod 813 is connected with the tension roller 8, one end of the straight rod 813, which is positioned in the sleeve 812, is connected with one end of the spring 811, the other end of the spring 811 is connected with the bottom edge of the sleeve 812, one end of the sleeve 812 is connected with a cross rod 82, and two ends of the cross rod 82 are fixedly connected with the side frames 7 respectively; the tensioning roller 8 can elastically support the grinding belt 6 under the support of the elastic telescopic rod 81, and along with the change of the loosening and tensioning states of the grinding belt 6, the elastic telescopic rod 81 can automatically stretch and retract under the action of the spring 811, and the adjusting tensioning roller 8 is always in contact with the inner wall of the grinding belt 6.
The two sides of the V-shaped structure on the grinding belt 6 are correspondingly provided with a three-jaw chuck 92 and a pressure head 93, one side of the three-jaw chuck 92, which is far away from the pressure head 93, is connected with a second motor 91, one side of the pressure head 93, which is far away from the three-jaw chuck 92, is rotatably connected with a second telescopic cylinder 94, the second telescopic cylinder 94 can be a hydraulic cylinder, the part of the V-shaped structure on the grinding belt 6 is correspondingly provided with a workpiece clamping frame 9, and the second motor 91 and the second telescopic cylinder 94 are respectively and fixedly arranged on two sides of the upper end of the workpiece clamping frame 9; the three-jaw chuck 92 can clamp one end of a workpiece, the pressure head 93 can push the other end of the workpiece under the pushing of the second telescopic cylinder 94, the workpiece is kept positioned, the second motor 91 drives the three-jaw chuck 92 to rotate, the workpiece can be driven to rotate together, the workpiece is ground by the grinding belt 6 in the rotating process, and the grinding efficiency is improved.
Two sides of the workpiece clamping frame 9 are respectively provided with a supporting slide rod 95, and the supporting slide rods 95 penetrate through the side frames 7 in a sliding manner; this structure enables the workpiece holder 9 to slide laterally;
one end of the support sliding rod 95 is hinged with a push-pull rod 96, one end of the push-pull rod 96 is hinged with an eccentric wheel 97, the middle part of one side of the eccentric wheel 97 is connected with a third motor 98, and the third motor 98 is fixedly arranged on the side frame 7; the third motor 98 drives one end of the push-pull rod 96 to eccentrically rotate through the eccentric wheel 97, so that the other end of the push-pull rod 96 can play a role in pushing and pulling the support slide rod 95, the workpiece clamping frame 9 can use the support slide rod 95 as a support for quick transverse reciprocating motion, further, a workpiece clamped on the workpiece clamping frame 9 can also quickly and transversely reciprocate, a synchronous transverse grinding function is added under the functions of workpiece autorotation grinding and grinding belt 6 rotation grinding, and the grinding effect can be improved.
Example 2
The invention also discloses a polygonal special-shaped eccentric grinding method, which comprises the following steps:
s1: a workpiece is placed between the three-jaw chuck 92 and the pressure head 93, the three-jaw chuck 92 is operated to clamp and position one end of the workpiece, the second telescopic cylinder 94 extends to push the lower pressure head 93 to prop against the other end of the workpiece, the workpiece is kept in a positioned state, and the workpiece is clamped and positioned to a V-shaped structure on one side of the grinding belt 6;
s2: the first telescopic cylinder 3 is controlled to contract, the first telescopic cylinder 3 takes the fixed clamping frame 1 as a support to pull the movable clamping frame 4 upwards, the fixed clamping frame 1 and the movable clamping frame 4 are rotatably hinged, so that the fixed clamping frame 1 and the movable clamping frame 4 can rotate to be close to each other, the first pushing mechanism 2 and the second pushing mechanism 5 on the fixed clamping frame 1 and the movable clamping frame 4 push the V-shaped structure of the grinding belt 6 to clamp a workpiece, and the workpiece is ground by the grinding belt 6;
s3: the fourth motor 63 is started to drive the grinding belt 6 to rotate, the outer wall of a workpiece clamped in a V-shaped structure of the grinding belt 6 is continuously rubbed by the grinding belt 6, the first motor 21 is started at the same time, the pushing and pressing strips 25 are enabled to be abutted against the grinding belt 6, the grinding belt 6 is enabled to be in contact with the workpiece all the time, the grinding purpose is achieved, the first pushing and pressing mechanism 2 is provided with a plurality of pushing and pressing strips 25 which are distributed at equal intervals, the pushing and pressing roller 26 is driven by the first motor 21 to rotate, the pushing and pressing strips 25 are enabled to be continuously pushed towards the grinding belt 6, the grinding belt 6 is enabled to be in contact with the surface of the workpiece, each pushing and pressing strip 25 can independently slide, the pushing and pressing roller 26 is in rolling contact with the pushing and pressing strips 25, the pushing and pressing strips 25 are pushed downwards by the friction force, the pushing and pressing strips 25 are enabled to be in contact with the outer surface of the workpiece with the special-shaped eccentric part all the time in a downward sliding way, and when the reverse thrust of the workpiece on the grinding belt 6 is greater than the friction resistance between the pushing and pressing strips 25 and the pushing and pressing roller 26, the push-press strip 25 can slide upwards to avoid, so that the grinding belt 6 can be contacted with the outer surface of the polygonal special-shaped eccentric workpiece, and different grinding tools do not need to be replaced;
s4: the second motor 91 is started, the clamped workpiece is driven to rotate through the three-jaw chuck 92, the third motor 98 is started, the third motor 98 drives one end of the push-pull rod 96 to eccentrically rotate through the eccentric wheel 97, the other end of the push-pull rod 96 can play a push-pull role in supporting the slide rod 95, the workpiece clamping frame 9 can use the support slide rod 95 to support quick transverse reciprocating motion, further the workpiece clamped on the workpiece clamping frame 9 can also quickly transversely reciprocate, under the effects of workpiece autorotation grinding and grinding of the grinding belt 6, a synchronous transverse grinding effect is increased, and the grinding effect can be improved.
The working principle is as follows: a workpiece is placed between the three-jaw chuck 92 and the pressure head 93, the three-jaw chuck 92 is operated to clamp and position one end of the workpiece, the second telescopic cylinder 94 extends to push the lower pressure head 93 to prop against the other end of the workpiece, the workpiece is kept in a positioned state, and the workpiece is clamped and positioned to a V-shaped structure on one side of the grinding belt 6;
the first telescopic cylinder 3 is controlled to contract, the first telescopic cylinder 3 takes the fixed clamping frame 1 as a support to pull the movable clamping frame 4 upwards, the fixed clamping frame 1 and the movable clamping frame 4 are rotatably hinged, so that the fixed clamping frame 1 and the movable clamping frame 4 can rotate to be close to each other, the first pushing mechanism 2 and the second pushing mechanism 5 on the fixed clamping frame 1 and the movable clamping frame 4 push the V-shaped structure of the grinding belt 6 to clamp a workpiece, and then the fourth motor 63 is started to drive the grinding belt 6 to rotate, so that the outer wall of the workpiece clamped in the V-shaped structure of the grinding belt 6 is continuously ground by the grinding belt 6;
simultaneously, the first motor 21 is started to drive the pushing and pressing roller 26 to rotate, the pushing and pressing strips 25 distributed at equal intervals are continuously pushed towards the direction of the grinding belt 6, the grinding belt 6 is kept in contact with the surface of a workpiece, each pushing and pressing strip 25 can independently slide, the pushing and pressing roller 26 is in rolling contact with the pushing and pressing strips 25, the pushing and pressing rollers 26 push the pushing and pressing strips 25 downwards by using friction force, the pushing and pressing strips 25 are enabled to always slide downwards to be in contact with the outer surface of the workpiece with the polygonal special-shaped eccentricity, and when the reverse thrust of the workpiece on the grinding belt 6 is greater than the friction resistance between the pushing and pressing strips 25 and the pushing and pressing rollers 26, the pushing and pressing strips 25 can slide upwards to avoid the contact, so that the grinding belt 6 can be in contact with the outer surface of the workpiece with the polygonal special-shaped eccentricity without replacing different grinding tools;
the second motor 91 is started in the grinding process, the clamped workpiece is driven to rotate through the three-jaw chuck 92, the third motor 98 is started, the third motor 98 drives one end of the push-pull rod 96 to eccentrically rotate through the eccentric wheel 97, the other end of the push-pull rod 96 can play a role in pushing and pulling the support slide rod 95, the workpiece clamping frame 9 can use the support slide rod 95 as a support for quickly and transversely reciprocating, the workpiece clamped on the workpiece clamping frame 9 can also quickly and transversely reciprocate, a synchronous transverse grinding function is added under the actions of workpiece autorotation grinding and grinding of the grinding belt 6, and the grinding effect can be improved.
The previous description is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. Multilateral special-shaped eccentric grinding device, its characterized in that: the grinding belt comprises a grinding belt (6), wherein one side of the grinding belt (6) is supported by a first pushing mechanism (2), an outer wall surface supporting roller (11) and a second pushing mechanism (5) in a matched mode to form a V-shaped structure, the first pushing mechanism (2) and the second pushing mechanism (5) are respectively arranged on a fixed clamping frame (1) and a movable clamping frame (4), one ends of the fixed clamping frame (1) and the movable clamping frame (4) are hinged, and a first telescopic cylinder (3) is connected between the fixed clamping frame (1) and the movable clamping frame (4);
first pushing mechanism (2) include the pushing lath (25) that a plurality of equidistance distributes, push the one end top of lath (25) on the inner wall of grinding area (6), and push the both sides of lath (25) and have respectively roll connection and push away compression roller (26), the one end that pushes away compression roller (26) is connected with first motor (21), second pushing mechanism (5) are the same with the structure of first pushing mechanism (2).
2. The polygonal special-shaped eccentric grinding device according to claim 1, wherein: the bottom of the fixed clamping frame (1) is equidistantly provided with limiting battens (24), the limiting battens (24) and the pushing battens (25) are distributed in a staggered mode, and the limiting battens (24) are in sliding fit with the pushing battens (25);
a plurality of pushing rollers (26) are arranged on each side of each pushing lath (25), a driving wheel (23) is arranged at one end of each pushing roller (26), the driving wheels (23) are linked through a driving belt (22), one end of one pushing roller (26) on one side of each pushing lath (25) is connected with a first motor (21), and the first motor (21) is fixedly arranged on the fixed clamping frame (1);
and a grinding belt supporting roller (27) is arranged at one end of the fixing clamp frame (1), and the grinding belt supporting roller (27) is pressed against the inner wall of the grinding belt (6).
3. The polygonal special-shaped eccentric grinding device according to claim 2, wherein: one end of the pushing lath (25) is pressed against the inner wall of the grinding belt (6) through a rotating shaft (251), the rotating shaft (251) is rotatably connected with the pushing lath (25), and the rotating shaft (251) is in rolling connection with the grinding belt (6).
4. The polygonal special-shaped eccentric grinding device according to claim 1, wherein: a plurality of shaft rods (62) are supported on the inner wall of the grinding belt (6), two ends of each shaft rod (62) are respectively connected with a side frame (7), and one end of one shaft rod (62) penetrates through each side frame (7) and is connected with a fourth motor (63);
the grinding belt (6) is of a double-layer structure, and the inner layer of the grinding belt (6) is a strap (61);
two sides of the fixed clamping frame (1) are fixedly connected with the side frame (7).
5. The polygonal special-shaped eccentric grinding device according to claim 4, wherein: the fixed clamping frame (1) and the movable clamping frame (4) are rotatably hinged through a support shaft (10), and two ends of the support shaft (10) are respectively connected with the side frames (7);
the first telescopic cylinder (3) is rotatably arranged on the fixed clamping frame (1), and one end of the first telescopic cylinder (3) is hinged with the movable clamping frame (4).
6. The polygonal special-shaped eccentric grinding device according to claim 4, wherein: roll on the inner wall of grinding area (6) and support there is tight roller (8) that rises, one side of tight roller (8) that rises is connected with elasticity telescopic link (81), elasticity telescopic link (81) are including spring (811), sleeve pipe (812) and straight-bar (813), straight-bar (813) and sleeve pipe (812) slip plug, and the one end and the tight roller (8) that rise of straight-bar (813) are connected, and one end that straight-bar (813) are located sleeve pipe (812) is connected with the one end of spring (811), the other end and the base of sleeve pipe (812) of spring (811) are connected, the one end of sleeve pipe (812) is connected with horizontal pole (82), the both ends of horizontal pole (82) respectively with side bearer (7) fixed connection.
7. The polygonal special-shaped eccentric grinding device according to claim 1, wherein: the grinding belt is characterized in that a three-jaw chuck (92) and a pressure head (93) are correspondingly arranged on two sides of a V-shaped structure on the grinding belt (6), one side, away from the pressure head (93), of the three-jaw chuck (92) is connected with a second motor (91), one side, away from the three-jaw chuck (92), of the pressure head (93) is rotatably connected with a second telescopic cylinder (94), a workpiece clamping frame (9) is correspondingly arranged on the position, away from the V-shaped structure, of the grinding belt (6), and the second motor (91) and the second telescopic cylinder (94) are fixedly arranged on two sides of the upper end of the workpiece clamping frame (9) respectively.
8. The polygonal special-shaped eccentric grinding device according to claim 7, wherein: two sides of the workpiece clamping frame (9) are respectively provided with a supporting slide rod (95), and the supporting slide rods (95) penetrate through the side frames (7) in a sliding manner;
one end of the supporting sliding rod (95) is hinged with a push-pull rod (96), one end of the push-pull rod (96) is hinged with an eccentric wheel (97), the middle of one side of the eccentric wheel (97) is connected with a third motor (98), and the third motor (98) is fixedly installed on the side frame (7).
9. A polygonal special-shaped eccentric grinding method comprising the polygonal special-shaped eccentric grinding device according to any one of claims 1 to 9, characterized by comprising the steps of:
s1: a workpiece is placed between a three-jaw chuck (92) and a pressure head (93), so that the workpiece is clamped and positioned to a V-shaped structure on one side of a grinding belt (6);
s2: the first telescopic cylinder (3) is controlled to contract, the fixed clamping frame (1) and the movable clamping frame (4) are pulled to rotate to be close to each other, and the first pushing mechanism (2) and the second pushing mechanism (5) push the V-shaped structure of the grinding belt (6) to clamp the workpiece;
s3: the fourth motor (63) is started to drive the grinding belt (6) to rotate, the outer wall of a workpiece clamped in a V-shaped structure of the grinding belt (6) is continuously rubbed by the grinding belt (6), and meanwhile, the first motor (21) is started to enable the pushing plate strip (25) to push against the grinding belt (6), so that the grinding belt (6) is always kept in contact with the workpiece, and the grinding purpose is achieved;
s4: and starting the second motor (91) to drive the clamped workpiece to rotate, and starting the third motor (98) to drive the clamped workpiece to rapidly reciprocate to move transversely, so as to accelerate grinding.
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| CN202111114762.0A CN113910063B (en) | 2021-09-23 | 2021-09-23 | Polygonal special-shaped eccentric grinding device and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117020872A (en) * | 2023-09-25 | 2023-11-10 | 山东寿光市坤隆石油机械股份有限公司 | Grinding device for surface treatment of submersible screw pump rotor |
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| CN113910063B (en) | 2022-11-01 |
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