Spherical core spraying tool

Abstract

A spherical core spraying tool comprises a spraying spindle and connecting rods; the spraying spindle is circumferentially provided with a plurality of protruding rings, and is axially provided with a strip-shaped groove; the connecting rods are disposed in the groove; one end of the spraying spindle is a power input end, and the other end is provided with a locking sleeve; the groove runs through the protruding rings. By spot-welding steel balls in an inner hole of a spherical core and fitting the spherical core over the spraying spindle, the steel balls are stuck in the groove of the spraying spindle, and the both sides of the steel balls are tightened by means of the connecting rods in abutting-against fashion, so that a plurality of spherical cores is fixed together with the spraying spindle, and the plurality of spherical cores can be spray-coated simultaneously, thereby improving the efficiency.

Claims

1. A spherical core spraying tool, comprising: a spraying spindle (1) and connecting rods (6), wherein the spraying spindle (1) is provided with a number of protruding rings (2) in a circumferential direction, and is provided with a strip-shaped groove (3) in an axial direction, the connecting rods (6) are disposed in the groove (3), a power drive input end (4) is provided at one end of the spraying spindle (1), and a locking sleeve (5) is provided at the other end of the spraying spindle (1), and the groove (3) penetrates through the protruding rings (2), wherein a respective one of the connecting rods (6) is arranged in the groove (3) between every two adjacent protruding rings (2), and a last one of the connecting rods (6) is arranged in the groove (3) between the protruding ring (2) closest to the locking sleeve (5) and the locking sleeve (5), the protruding rings (2), the groove (3) and the connecting rods (6) cooperate with spherical cores (7) to be sprayed, so that when the spherical cores (7) are respectively sleeved on the protruding rings (2), ends of the connecting rods (6) are pressed against the corresponding spherical cores (7) except that an end of the last one connecting rod (6) closest to the locking sleeve (5) is fastened with the locking sleeve (5).

2. The spherical core spraying tool according to claim 1, wherein the protruding rings (2) are equally spaced and distributed on the spraying spindle (1).

3. The spherical core spraying tool according to claim 2, wherein a number of the connecting rods (6) is equal to a number of the protruding rings (2).

4. The spherical core spraying tool according to claim 3, wherein a length of the connecting rod (6) is equal to a distance between two adjacent protruding rings (2).

5. The spherical core spraying tool according to claim 1, wherein a cross-section of the power input drive end (4) of the spraying spindle (1) is a polygonal.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Hereinafter, the present disclosure will be further described in conjunction with the accompanying drawings and embodiments.

(2) FIG. 1 is a structural schematic diagram illustrating a spraying spindle according to the present disclosure;

(3) FIG. 2 is a structural schematic diagram illustrating a connecting rod according to the present disclosure;

(4) FIG. 3 is a schematic diagram illustrating an operating state according to the present disclosure;

(5) FIG. 4 is a structural schematic diagram illustrating a positioning core axis according to an embodiment; and

(6) FIG. 5 is a structural schematic diagram illustrating a cross-section of a positioning core axis in an operating state.

(7) In the drawings: 1.spraying spindle; 2.protruding ring; 3.groove; 4.power input end; 5.locking sleeve; 6.connecting rod; 7.spherical core; 8.base; 9.positioning core axis; 10.open slot; 11.steel ball.

DETAILED DESCRIPTION

(8) The present disclosure will now be further described in detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, and are only illustrative of a basic structure of the present disclosure schematically, thus only configurations related to the present disclosure are shown.

(9) As shown in FIGS. 1 and 2, a spherical core spraying tool includes a spraying spindle 1 and a connecting rod 6. The spraying spindle 1 is circumferentially provided with four protruding rings 2, and is axially provided with a strip-shaped groove 3. The connecting rod 6 is disposed inside the groove 3. A power input end 4 is provided at one end of the spraying spindle 1, and a locking sleeve 5 is provided at the other end of the spraying spindle 1. The groove 3 penetrates through the four protruding rings 2. The protruding rings 2 are distributed on the spraying spindle 1 at equal intervals. A number of the connecting rods 6 is equal to a number of the protruding rings 2, and a length of the connecting rod 6 is equal to a distance between two adjacent protruding rings 2. A shape of a cross-section of the power input end 4 of the spraying spindle 1 is a square, and may also be a triangle, a regular hexagon and so on.

(10) Before a spherical core 7 is fixed to the spraying spindle 1, spot-welding of a steel ball 11 in an inner hole of the spherical core 7 is required to be performed for the purpose of positioning. As shown in FIGS. 4 and 5, a positioning core axis 9, which is provided with an open slot 10 at the top and a base 8 at the bottom, is inserted into the spherical core 7, and the bottom of the spherical core 7 comes into contact with the base 8. Since a height of the positioning core axis 9 is smaller than a height of the spherical core 7, the positioning core axis 9 is completely accommodated in the inner hole of the spherical core 7. The steel ball 11 is then placed in the open slot 10 of the positioning core axis 9, the steel ball 11 is in contact with a wall of the inner hole of the spherical core 7, and then the steel ball 11 is spot-welded to the wall of the inner hole of the spherical core 7, in such a manner that a position of the steel ball 11 in the inner hole of each of the spherical cores 7 is identical. As shown in FIG. 3, the positioning core axis 9 is taken out of the spherical core 7, and then the spherical core 7, to which the steel ball 11 is welded, is fitted to the protruding ring 2 on the spraying spindle 1 close to the power input end 4, so that the steel ball 11 is stuck in the groove 3 of the spraying spindle 1, the wall of the inner hole of the spherical core 7 is attached to the protruding ring 2, and then one of the connecting rods 6 is placed in the groove 3 to tighten the steel ball 11 in abutting-against fashion, and both ends of the steel ball 11 are respectively clamped between an end portion of the groove 3 and one end of the connecting rod 6, in this way, the spherical core 7 is fixed on the spraying spindle 1. After four spherical cores 7 are fixed on the spraying spindle 1 according to the above-described steps, the last connecting rod 6 is fastened with the locking sleeve 5. The protruding rings 2 are equally spaced and distributed on the spraying spindle 1 so that the spherical cores 7 fixed on the spraying spindle 1 are equally spaced apart from each other. The spherical cores 7 are sprayed by an automatic spraying device, it is only required that a spraying procedure is set to be equally spaced or at equal time intervals, thus processes can be simplified, and spraying efficiency is improved. The spherical core 7 is fitted to the first protruding ring 2 near the power input end 4, and one side of the steel ball 11 inside the spherical core 7 abuts against the end portion of the groove 3, and the other side of the steel ball 11 is tightened by means of one end of one connecting rod 6 in abutting-against fashion, and the steel ball 11 of the spherical core 7 fitted to the second protruding ring 2 is tightened and positioned between the other end of the one connecting rod 6 and one end of another connecting rod 6 in abutting-against fashion, and the connecting rod 6 close to the locking sleeve 5 is fastened by the locking sleeve 5, that is, each of the spherical cores 7 corresponds to one of the connecting rods 6, so the number of the connecting rods 6 is equal to the number of the protruding rings 2. The wall of the inner hole of the spherical core 7 is fitted to the protruding ring 2, and one of the connecting rod 6 is connected between two of the spherical cores 7. The length of the connecting rod 6 is equal to the distance between the two adjacent protruding rings 2. The cross-section of the power input end 4 of the spraying spindle 1 is a polygonal, and the power input end 4 and a driving device form molded surface connection, strength of which is high, and no stress concentration is caused, thereby, large torque can be transmitted, high efficiency can be obtained, and impact load can be withstood.

(11) In view of the above-described embodiments of the present disclosure, various changes and modifications can be made by those skilled in the art without departing from the scope of the technical idea of the present disclosure. The technical scope of the present disclosure is not limited to the contents of the specification, and the technical scope thereof must be determined according to the scope of the claims.