CN108296949B

CN108296949B - Manual grinding device for inner arc surface of part

Info

Publication number: CN108296949B
Application number: CN201711320674.XA
Authority: CN
Inventors: 汪光明
Original assignee: Anhui Guangming Grain And Oil Industry Co ltd
Current assignee: Anhui Guangming Grain And Oil Industry Co ltd
Priority date: 2017-12-12
Filing date: 2017-12-12
Publication date: 2020-08-25
Anticipated expiration: 2037-12-12
Also published as: CN108296949A

Abstract

The invention relates to a manual grinding device for an inner arc surface of a part, which comprises a handle and a disc seat welded at the upper end of the handle, wherein a motor is installed at the center of the disc seat and connected with a central shaft, a central gear and a bearing plate are respectively installed at the lower part and the upper end of the central shaft, the central gear is meshed with three side gears which are uniformly distributed in an annular mode, and the three side gears are respectively meshed with an inner gear ring fixedly arranged on the disc seat; each side gear is connected with a rotating shaft, the lower end of each rotating shaft is connected with a movable bearing seat, and a circle of annular grooves for installing the movable bearing seats in a sliding mode are formed in each disc seat; the upper end of each rotating shaft is provided with a bulb. The invention not only can control the dynamic walking of the bulb through the gear tooth transmission guide, thereby facilitating the illumination and controlling the grinding amount, but also can control the grinding block to swing and rotate in a reciprocating manner by controlling the rotation and sliding fit of the transmission block, thereby achieving the effect of automatically grinding the inner spherical arc on the part.

Description

Manual grinding device for inner arc surface of part

Technical Field

The invention relates to a machining mechanical device, in particular to a manual grinding device for an inner arc surface of a part.

Background

Grinding is a processing method for cutting off redundant materials on a workpiece by using an abrasive material and a grinding tool. Grinding is one of the cutting methods that is widely used. In actual processing, although people can operate the corresponding grinding tool to automatically grind the plane of the part by bare hands, the inner spherical arc-shaped surface on the part is difficult to grind by the bare hands, and the grinding amount of the processing is difficult to control by people in a dark environment.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a manual grinding device for an intrados of a part.

The technical problem to be solved by the invention is realized by adopting the following technical scheme:

a manual grinding device for an inner arc surface of a part comprises a handle and a disc seat welded at the upper end of the handle, wherein a motor is installed in the center of the disc seat and connected with a central shaft, a central gear and a bearing plate are installed at the lower part and the upper end of the central shaft respectively, the central gear is meshed with three edge gears which are uniformly distributed in an annular mode, and the three edge gears are meshed with inner gear rings fixedly arranged on the disc seat; each side gear is connected with a rotating shaft, the lower end of each rotating shaft is connected with a movable bearing seat, and a circle of annular grooves for installing the movable bearing seats in a sliding mode are formed in each disc seat; the upper end of each rotating shaft is provided with a bulb.

The disc seat is provided with a protruding block on the right side, a cross rod is mounted on the protruding block through a bearing, an arc-shaped driving frame is welded on the cross rod, a polishing block is fixedly mounted on the driving frame, an arc-shaped through groove is formed in the driving frame, and a transmission block fixedly mounted on the bearing plate is arranged in the through groove in a sliding fit mode.

The bearing plate is V-shaped.

The invention has the beneficial effects that:

the automatic grinding machine has high automation degree, can control the dynamic walking of the bulb through the gear tooth transmission guide, is convenient for lighting to control the grinding amount, and can control the grinding block to rotate in a reciprocating swing mode through controlling the rotation and sliding fit of the transmission block, so that the effect of automatically grinding the inner spherical arc on the part is achieved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a top view of the present invention;

fig. 2 is a sectional view a-a of fig. 1.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be described more clearly and more completely with reference to the drawings in the following embodiments, and it is understood that the described embodiments are only a part of the present invention, rather than all of the present invention, and based on the embodiments, other embodiments obtained by those skilled in the art without inventive exercise are within the protection scope of the present invention.

As shown in fig. 1 and 2, a manual grinding device for an inner arc surface of a part comprises a handle 1 and a disc seat 3 welded at the upper end of the handle 1, wherein a motor 2 is installed at the center of the disc seat 3, the motor 2 is connected with a central shaft 10, a central gear 11 and a bearing plate 6 are respectively installed at the lower part and the upper end of the central shaft 10, three edge gears 8 uniformly distributed in an annular mode are meshed with the central gear 11, and inner gear rings 3b fixedly arranged on the disc seat 3 are meshed with the three edge gears 8; each side gear 8 is connected with a rotating shaft 12, the lower end of each rotating shaft 12 is connected with a movable bearing seat 13, and a ring of annular grooves 3a for installing the movable bearing seats 13 in a sliding manner are formed in the disc seat 3; a bulb 4 is arranged at the upper end of each rotating shaft 12.

The right side is equipped with salient piece 3c on the disc seat 3, install horizontal pole 9 through the bearing on the salient piece 3c, the welding of horizontal pole 9 has curved drive frame 5, it is equipped with sanding block 14 admittedly on the drive frame 5, it has curved logical groove 5a to open on the drive frame 5, it is equipped with transmission block 7 admittedly on loading board 6 to lead to sliding fit in groove 5 a.

The carrier plate 6 is V-shaped.

Before the bulb grinding machine is used, each bulb 4 needs to be connected with an external circuit and powered on to be started, then the handle 1 is manually held, the grinding block 14 is attached to the inner arc surface of a part, then the motor 2 can be started to drive the central shaft 10 to rotate at a constant speed, the central gear 11 and the bearing plate 6 are driven to synchronously rotate along with the central shaft 10, namely the driving block 7 rotates around the center of the central shaft 10, and the driving block 7 can enable the driving frame 5 and the grinding block 14 to rotate in a reciprocating swing mode around the connecting point of the cross rod 9 and the protruding block 3c under the sliding fit effect while rotating, so that the effect of automatically grinding the inner arc surface of the part is achieved.

On the other hand, under the action of gear tooth transmission, the three side gears 8, the rotating shaft 12 and the bulb 4 all travel along the track of the ring groove 3a, so that illumination can be performed in the whole grinding process, and the grinding amount is conveniently controlled.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a manual grinding device of cambered surface in part, includes handle (1) and welds disk seat (3) in handle (1) upper end, its characterized in that: a motor (2) is installed in the center of the disc seat (3), the motor (2) is connected with a central shaft (10), a central gear (11) and a bearing plate (6) are installed at the lower part and the upper end of the central shaft (10) respectively, three side gears (8) which are uniformly distributed in an annular mode are meshed with the central gear (11), and inner gear rings (3b) fixedly arranged on the disc seat (3) are meshed with the three side gears (8); each side gear (8) is connected with a rotating shaft (12), the lower end of each rotating shaft (12) is connected with a movable bearing seat (13), and a ring of annular grooves (3a) for installing the movable bearing seats (13) in a sliding manner are formed in each disc seat (3); the upper end of each rotating shaft (12) is provided with a bulb (4);

the right side is equipped with salient piece (3c) on disc seat (3), install horizontal pole (9) through the bearing on salient piece (3c), the welding of horizontal pole (9) has curved drive frame (5), it is equipped with sanding block (14) admittedly on drive frame (5), and it has curved logical groove (5a) to open on drive frame (5), it has transmission piece (7) of adorning on loading board (6) admittedly to slide fit in logical groove (5 a).

2. The manual grinding device for the intrados of the part as claimed in claim 1, wherein: the bearing plate (6) is V-shaped.