CN112077728A

CN112077728A - Sphere surface machining device

Info

Publication number: CN112077728A
Application number: CN202011064643.4A
Authority: CN
Inventors: 靳刚; 肖福源; 姜颢天; 李占杰; 韩建鑫
Original assignee: Tianjin University of Technology and Education China Vocational Training Instructor Training Center
Current assignee: Tianjin University of Technology and Education China Vocational Training Instructor Training Center
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2020-12-15
Anticipated expiration: 2040-09-30
Also published as: CN112077728B

Abstract

The invention provides a sphere surface processing device, which effectively solves the problems that when a large sphere is polished and polished in the prior art, the polishing degree of each part of the sphere is not uniform, the sphere is easy to deform, needs to be repeatedly fixed for many times, and has low efficiency and large labor amount; the technical scheme for solving the problem is that the polishing machine comprises a rack, wherein a rotary table is arranged at the lower end in a cavity of the rack, a plurality of stirring units are uniformly distributed on the periphery of the rotary table, an arc-shaped plate is arranged at the upper end of the rack, a polishing disc is arranged on the arc-shaped plate, and the left end and the right end of the arc-shaped plate are hinged with the rack; a first gear ring is fixed on a lower side plate of the rack, the poking unit comprises a cylindrical shell, a worm is arranged in the cylindrical shell, a first bevel gear is meshed at the upper end of the first gear ring, the lower end of the worm penetrates through the turntable and is coaxially fixed with the corresponding first bevel gear, a plurality of notches are formed in the side wall of the cylindrical shell, and worm wheels are hinged in the notches; a third bevel gear is fixed at the lower end of the cylindrical shell, and a third gear ring capable of actively rotating is sleeved outside the first gear ring.

Description

Sphere surface machining device

Technical Field

The invention relates to the technical field of machining, in particular to a sphere surface machining device.

Background

With the improvement of living standard of people, the stone ball is often used in various gardening landscapes, such as geomantic ball, rockery or column. The original ecological large stone ball is not easy to manufacture and has large weight, in order to reduce the weight, some solid balls are cut into multiple parts, then the solid balls are hollowed out, finally, all the parts are adhered and fixed by using a special process to form a spherical shell, and finally, the spherical shell is polished. Except for stone materials, other materials such as stainless steel, various alloys and the like are adopted, the large balls are manufactured by a stamping process, then a plurality of parts are welded and fixed, and finally polishing is carried out. At present, the equipment that adopts during polishing combines the manpower mode more, and is specific: the lower end of the ball body is fixed on a main shaft of the equipment, the main shaft drives the ball body to rotate, and then a polishing disk is held by a person to move on the spherical surface, so that polishing is realized. The operation mode is low in efficiency, depends on the operation level of workers, forms textures on the spherical surface easily, and if the control is poor, the polishing degree of each part of the spherical surface is different, the spherical body becomes football-shaped, the processing effect is seriously affected, the appearance is not attractive, and the efficiency is low. Finally, but still importantly, because the lower end of the ball body is fixed, the grinding amount of the fixed part is less than that of other parts, and if the lower end of the ball body is required to be ground completely, the ball body can be fixed again and then ground.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the sphere surface processing device which effectively solves the problems that when a large sphere is polished and polished in the prior art, the polishing degree of each part of the sphere is not uniform, the sphere is easy to deform, the sphere needs to be repeatedly fixed for many times, the efficiency is low, and the labor amount of manpower is large.

The technical scheme includes that the polishing machine comprises a rack, a horizontal rotary table capable of actively rotating is arranged at the lower end in a cavity of the rack, a plurality of stirring units are uniformly distributed on the periphery of the rotary table, a ball body is placed in the rack, the stirring units can drive the ball body to rotate in the horizontal direction and in the vertical direction, an arc-shaped plate concentric with the ball body is arranged at the upper end of the rack, a polishing disc is mounted on the arc-shaped plate, the left end and the right end of the arc-shaped plate are hinged to the rack, the arc-shaped plate can swing back and forth, and the arc-shaped plate can swing back and forth to drive the polishing;

a first gear ring coaxial with the rotating shaft is fixed on the lower side plate of the rack, the poking unit comprises a cylindrical shell, worms are obliquely arranged in the cylindrical shell, first bevel gears corresponding to the worms one by one are meshed at the upper ends of the first gear rings, the lower ends of the worms penetrate through the rotating disc and are coaxially fixed with the corresponding first bevel gears, a plurality of notches are uniformly distributed on the side wall of the cylindrical shell in the circumferential direction, worm gears meshed with the worms are hinged in the notches, and the outer sides of the worm gears can be contacted with a sphere; the lower end of the cylindrical shell is fixed with a third bevel gear coaxial with the cylindrical shell, and the outer side of the first gear ring is sleeved with a third gear ring capable of actively rotating.

The ball polishing device is ingenious in structure, can achieve uniform polishing of the surface of a ball without fixing the ball, keeps the polishing degree of each part of the ball consistent, is not easy to deform, is high in polishing efficiency, can greatly reduce manual labor, can polish part of the ball in addition, and is wide in adaptability.

Drawings

FIG. 1 is a front cross-sectional view of the present invention.

Fig. 2 is a front sectional view of the toggle unit of the present invention.

Fig. 3 is a cross-sectional view taken along line a-a of fig. 2.

Fig. 4 is a schematic view of the transmission relationship between the second ring gear and the transmission gear in the present invention.

Fig. 5 is a structural view of an arc plate and parts thereon in the invention.

Fig. 6 is a structural view of the second ring gear in the present invention.

Detailed Description

The following description will explain embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, the polishing machine comprises a frame 1, a horizontal turntable 2 capable of actively rotating is arranged at the lower end in a cavity of the frame 1, a plurality of stirring units are uniformly distributed on the periphery of the turntable 2, a ball 3 is placed in the frame 1, the plurality of stirring units can drive the ball 3 to rotate in the horizontal direction and the vertical direction, an arc plate 4 concentric with the ball 3 is arranged at the upper end of the frame 1, a polishing disc 5 is arranged on the arc plate 4, the left end and the right end of the arc plate 4 are hinged with the frame 1, the arc plate 4 can swing back and forth, and the arc plate 4 can swing back and forth to drive the polishing disc 5 to polish and polish the ball 3;

a first gear ring 6 coaxial with the rotating shaft is fixed on a lower side plate of the rack 1, the poking unit comprises a cylindrical shell 7, a worm 8 which is obliquely arranged is arranged in the cylindrical shell 7, first bevel gears 9 which are in one-to-one correspondence with the worm 8 are meshed at the upper end of the first gear ring 6, the lower end of the worm 8 penetrates through the turntable 2 and is coaxially fixed with the corresponding first bevel gears 9, a plurality of notches which are uniformly distributed on the circumference are formed in the side wall of the cylindrical shell 7, worm wheels 10 meshed with the worm 8 are hinged in the notches, and the outer sides of the worm wheels 10 can be contacted with the sphere 3; the lower end of the cylindrical shell 7 is fixed with a third bevel gear 11 which is coaxial with the cylindrical shell, and the outer side of the first gear ring 6 is sleeved with a third gear ring 12 which can actively rotate.

In order to realize the back and forth swing of the arc-shaped plate 4, a second gear ring 13 capable of rotating is arranged at the upper end in the cavity of the rack 1, a second bevel gear 14 meshed with the second gear ring 13 is fixed at one end of the first worm 8 far away from the center of the rack 1, the rotating disc 2 rotates and drives a first bevel gear 9 to roll along the first gear ring 6 through a shifting unit, and the first bevel gear 9 drives the second gear ring 13 to rotate through the worm 8 and the second bevel gear 14; the left end and the right end of the arc-shaped plate 4 are fixedly provided with transmission gears 15, the upper end of the second gear ring 13 is provided with a plurality of sections of teeth meshed with the transmission gears 15, and only one transmission gear 15 is meshed with one section of teeth at the same time.

For installation polishing dish 5, polishing dish 5 keep away from and have square shaft 16 on one side of spheroid 3, square shaft 16 runs through arc 4 and can be along arc 4 radial slip, square shaft 16 keeps away from one of arc 4 and serves to have the annular arch, is connected with the extension spring between annular arch and the arc 4.

In order to realize the active rotation of the turntable 2, the lower end of the turntable 2 is connected with a first motor 17, and the first motor 17 is fixed on the frame 1.

In order to realize the active rotation of the third gear ring 12, a bearing is arranged between the first gear ring 6 and the third gear ring 12, one side of the third gear ring 12 is meshed with a gearwheel 18, the gearwheel 18 is connected with a second motor 19, the gearwheel 18 rotates to drive the first gear ring 6 to rotate through the third gear ring 12, and the second motor 19 is fixed on the frame 1.

In practice, considering the problem of the direction of rotation of the worm 8, the two worm wheels 10, shown in fig. 1, in contact with the ball 3 have their rotation directions kept the same. The number of the poking units is even, and one diameter of the rotary disc 2 is used as a boundary line, the torque generated by the resultant force of all the worm gears 10 contacted with the sphere 3 on one side of the boundary line to the sphere 3 is consistent with the torque and the direction on the other side, so that the sphere 3 can be ensured to rotate in the up-down direction.

It is worth noting that a bearing is arranged between the second gear ring 13 and the rack 1, a bearing is arranged between the worm 8 and the cylindrical shell 7, and a plurality of vertical support rods are arranged at the lower end of the rack 1; the frame 1 can be replaced by a fence, so that dust and residues can be conveniently cleaned; the first motor 17 and the second motor 19 are both servo motors with braking function.

When in use, the ball 3 is placed in the frame 1, the ball 3 is held up by the plurality of worm gears 10, at this time, the first motor 17 is started, the first motor 17 drives the rotating disc 2 to rotate, the rotating disc 2 drives the plurality of toggle units around to rotate, the toggle units rotate and simultaneously drive the first bevel gears 9 thereon to roll along the first gear rings 6, the first bevel gears 9 drive the worms 8 to rotate, the first worms 8 drive the worm gears 10 to rotate, the worm gears 10 rotate to drive the ball 3 to rotate in the vertical direction, because the third gear rings 12 are in a fixed state at this time, the third bevel gears 11 are also arranged on the third gear rings 12, the third gear rings 12 drive the plurality of worm gears 10 to revolve through the cylindrical shell 7, so that the ball 3 rotates in the horizontal position, meanwhile, the second bevel gears 14 on the first worms 8 drive the second gear rings 13 to rotate, when the second gear rings 13 rotate, the transmission gears 15 at two ends of the arc-shaped plates 4 are alternately engaged with the teeth at, the front and back swing of the arc-shaped plate 4 is realized, the front and back swing of the arc-shaped plate 4 drives the polishing disc 5 to move on the surface of the sphere 3 through the square shaft 16, and the polishing is realized.

In the above process, the transmission ratio between the first bevel gear 9 and the first ring gear 6 is not equal to the transmission ratio between the third bevel gear 11 and the third ring gear 12.

The invention has the outstanding advantages and remarkable progress that:

1. the invention realizes the omnibearing grinding and polishing of the sphere 3 without fixing the sphere 3, compared with the prior art, the grinding of the surface of the sphere 3 is more uniform and reasonable, especially the stress of the assembled sphere 3 in all directions can be ensured to be uniform during grinding, and the deformation of the sphere 3 can be effectively prevented.

2. In production, some workpieces do not need to be integrally polished, only need to be subjected to key polishing on local areas, the existing equipment can also realize the polishing, but the polishing result can only depend on the operation level of workers, and the phenomenon of uneven polishing is easily caused. The invention can realize local grinding of the spherical surface, and the specific process comprises the following steps: and the first motor 17 and the second motor 19 are started simultaneously, the worm 8 rotates to enable the rotation generated by the worm wheel 10 to be offset by the rotation generated by the revolution of the worm wheel 10, namely, the worm wheel 10 only revolves and does not rotate, so that the sphere 3 only horizontally rotates, and meanwhile, the second gear ring 13 also rotates to enable the arc-shaped plate 4 to swing back and forth, and the local grinding and polishing of the spherical surface are realized.

3. In the polishing process, the faster the contact part speed of the polishing disc 5 and the spherical surface is, the better the polishing effect is. In order to control the polishing effect, the first motor 17 and the second motor 19 can control the rotation speed of the ball 3, so as to control the linear speed of the contact part of the spherical surface and the polishing disc 5, and finally control the polishing effect.

4. In production, a workpiece with a conical lower part and a spherical upper part is often encountered, and the device can also be suitable. Specifically, the conical surface of the workpiece is arranged in the frame 1, the worm gears 10 are in contact with the conical surface, and the workpiece is supported, as described above, the first motor 17 and the second motor 19 are started simultaneously, so that the worm gears 10 only revolve and do not rotate, the workpiece only horizontally rotates, and the spherical surface at the upper end of the workpiece is polished by swinging the arc-shaped plates 4 back and forth. Of course, a special conical mold can be made for a part of the spherical shell, the part of the spherical shell is fixed on the mold, then the mold is placed in the frame 1, and finally, the surface of the part of the spherical shell is polished.

The ball body 3 polishing machine is ingenious in structure, the surface of the ball body 3 can be uniformly polished without fixing the ball body 3, the polishing degree of each part of the ball surface is kept consistent, the ball body 3 is not easy to deform, the polishing efficiency is high, the manual labor can be greatly reduced, in addition, the local part of the ball surface can be polished, and the adaptability is wide.

Claims

1. The sphere surface processing device is characterized by comprising a rack (1), wherein a horizontal turntable (2) capable of rotating actively is arranged at the lower end in a cavity of the rack (1), a plurality of stirring units are uniformly distributed on the periphery of the turntable (2), a sphere (3) is placed in the rack (1), the stirring units can drive the sphere (3) to rotate in the horizontal direction and in the vertical direction, an arc-shaped plate (4) concentric with the sphere (3) is arranged at the upper end of the rack (1), a polishing disc (5) is mounted on the arc-shaped plate (4), the left end and the right end of the arc-shaped plate (4) are hinged to the rack (1), the arc-shaped plate (4) can swing back and forth, and the polishing disc (5) can be driven by the arc-shaped plate (4) to polish and polish the sphere (3);

a first gear ring (6) coaxial with the rotating shaft is fixed on a lower side plate of the rack (1), the shifting unit comprises a cylindrical shell (7), worms (8) obliquely arranged are arranged in the cylindrical shell (7), first bevel gears (9) corresponding to the worms (8) one by one are meshed at the upper end of the first gear ring (6), the lower ends of the worms (8) penetrate through the turntable (2) and are coaxially fixed with the corresponding first bevel gears (9), a plurality of notches uniformly distributed in the circumference are formed in the side wall of the cylindrical shell (7), worm wheels (10) meshed with the worms (8) are hinged in the notches, and the outer sides of the worm wheels (10) can be in contact with the sphere (3); a third bevel gear (11) coaxial with the cylindrical shell (7) is fixed at the lower end of the cylindrical shell, and a third gear ring (12) capable of actively rotating is sleeved outside the first gear ring (6).

2. The sphere machining device according to claim 2, wherein a second gear ring (13) capable of rotating is arranged at the upper end in the cavity of the machine frame (1), a second bevel gear (14) meshed with the second gear ring (13) is fixed at one end of the first worm (8) far away from the center of the machine frame (1), the rotating disc (2) rotates to drive the first bevel gear (9) to roll along the first gear ring (6) through the shifting unit, and the first bevel gear (9) drives the second gear ring (13) to rotate through the worm (8) and the second bevel gear (14); the left end and the right end of the arc-shaped plate (4) are fixedly provided with a transmission gear (15), the upper end of the second gear ring (13) is provided with a plurality of sections of teeth meshed with the transmission gear (15), and only one transmission gear (15) is meshed with one section of teeth at the same time.

3. The sphere machining device according to claim 1, wherein a square shaft (16) is arranged on one side of the polishing disc (5) away from the sphere (3), the square shaft (16) penetrates through the arc plate (4) and can slide along the arc plate (4) in the radial direction, an annular protrusion is arranged at one end of the square shaft (16) away from the arc plate (4), and a tension spring is connected between the annular protrusion and the arc plate (4).

4. A spherical surface processing device according to claim 1, wherein the lower end of the rotary table (2) is connected with a first motor (17), and the first motor (17) is fixed on the frame (1).

5. The sphere surface machining device of claim 1, characterized in that a bearing is installed between the first gear ring (6) and the third gear ring (12), a gearwheel (18) is engaged with one side of the third gear ring (12), a second motor (19) is connected to the gearwheel (18), the gearwheel (18) rotates to drive the first gear ring (6) to rotate through the third gear ring (12), and the second motor (19) is fixed to the frame (1).