CN114393561A - Hollow rotating platform - Google Patents

Abstract

The invention relates to a hollow rotating platform which comprises a base and a rotating member, wherein a first through hole is formed in the top wall of the base, a plurality of universal balls and a limiting device which are positioned on the surface of the base are arranged around the first through hole, a long waist hole or a moving groove is further formed in the top wall of the base, the limiting device comprises a mounting shaft which penetrates through the long waist hole or the bottom end of the mounting shaft and is positioned in the moving groove, a limiting part which is arranged on the mounting shaft and can be in contact with the peripheral surface of the rotating member, the rotating member is positioned above the base, the bottom surface of the rotating member is in contact with the universal balls, and a second through hole which penetrates through the rotating member and is positioned above the first through hole is formed in the middle of the rotating member. The hollow rotating platform realizes the support and vertical positioning of the rotating piece and the detected part on the rotating piece through the arrangement of the universal ball, the arrangement of the limiting device facilitates the horizontal positioning and concentricity adjustment of an operator on the rotating piece, the arrangement of the first through hole and the second through hole facilitates the detection of the bottom end of the large-diameter rotating piece by the detector, and the hollow rotating platform is low in detection cost and easy to debug and maintain.

Description

Hollow rotating platform

Technical Field

The invention relates to a rotary table, in particular to a hollow rotary table.

Background

The large diameter rotating parts need to be subjected to ultrasonic detection before assembly to ensure the quality of products. When detecting major diameter rotary part, the measurement personnel not only need detect its global, still need detect its bottom or even inside, this just needs one kind can realize the cavity revolving stage of rotation function to being detected the part to conveniently detect it. At present, when a large-diameter rotating part is detected, a detector generally connects the rotating part and a customized rotating platform through a large-diameter thin-wall limiting bearing. This kind of detection mode, on the one hand the testing personnel is inconvenient to detect part bottom or inside, and on the other hand, when installing rotary part through the spacing bearing of major diameter thin wall, the testing personnel is comparatively inconvenient to its adjustment, level and height location etc. of concentricity. Due to the arrangement of the large-diameter thin-wall limiting bearing, the rotating platform is troublesome to maintain. Meanwhile, the large-diameter thin-wall limiting bearing is easy to damage during detection, the cost of the large-diameter thin-wall limiting bearing is high, and the large-diameter thin-wall limiting bearing needs to be customized according to the specific product model, so that the detection efficiency is greatly reduced, and the overall detection cost of the rotating component is improved.

Disclosure of Invention

In order to solve the above technical problems, an object of the present invention is to provide a hollow rotary table which is convenient for detection personnel to detect a large-diameter rotary member, has low detection cost, and is easy to debug and maintain.

The hollow rotating platform comprises a base and a rotating part, wherein a first through hole is formed in the top wall of the base, a plurality of universal balls and a limiting device are arranged on the periphery of the first through hole and positioned on the surface of the base, a long waist hole or a moving groove is further formed in the top wall of the base, the limiting device comprises a mounting shaft penetrating through the long waist hole or the bottom end and positioned in the moving groove, and a limiting part which is arranged on the mounting shaft and can be in contact with the peripheral surface of the rotating part, the rotating part is positioned above the base, the bottom surface of the rotating part is in contact with the universal balls, and a second through hole penetrating through the rotating part and positioned above the first through hole is formed in the middle of the rotating part.

Further, the base comprises a fixed wheel disc and a plurality of support columns, the top ends of the support columns are fixedly arranged on the fixed wheel disc, the first through holes are formed in the middle of the fixed wheel disc, and the universal ball and the limiting device are arranged on the upper surface of the fixed wheel disc.

Furthermore, the rotating member of the hollow rotating platform of the invention comprises a synchronous belt pulley and a supporting plate, the bottom surface of the synchronous belt pulley is provided with an annular flange the bottom end of which is positioned in the first through hole, the circumferential surface of the annular flange is provided with an annular groove, and the second through hole is positioned in the middle of the supporting plate.

Further, according to the hollow rotating table disclosed by the invention, the limiting piece is a limiting bearing matched with the annular groove.

Furthermore, according to the hollow rotating platform, the edge of the inner side of the supporting plate is provided with a concave platform spigot.

The hollow rotating platform has the advantages that the universal balls arranged on the surface of the base realize the support and vertical positioning of the rotating piece, and the rotating piece can stably rotate due to the arrangement of the universal balls, so that the friction generated during the rotation of the rotating piece is reduced. The rotation piece is arranged, so that the installation and rotation driving functions of the detected workpiece are realized, and the detection personnel can perform ultrasonic detection on the peripheral surface of the detected workpiece. The first perforation and the second perforation that rotates the piece middle part set up on the base diapire for the bottom of detecting the work piece can pass first perforation and second perforation in proper order and stretch out from the bottom surface of base roof, thereby made things convenient for operating personnel to the detection of its bottom. In addition, the arrangement of the limiting device and the long waist hole or the moving groove facilitates the horizontal positioning and the concentricity adjustment of the rotating part and the rotating part thereon by an operator, so that the detection equipment below the base can accurately detect the detected part. To sum up, this cavity revolving stage adopts low price, easily purchase standard part preparation such as base, universal ball, locating part, rotation piece, and its overall cost is lower, and its simple structure, easy to maintain, practicality are stronger moreover, but the testing personnel field installation debugging, and it is very convenient to use.

The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to implement the technical means in accordance with the content of the description, the embodiments of the present invention are described in detail below.

Drawings

FIG. 1 is a front view of a hollow rotary table;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a perspective view of a hollow rotary table;

FIG. 5 is another perspective view of the hollow rotary table;

FIG. 6 is a perspective view of the base;

fig. 7 is a front view of the timing pulley;

fig. 8 is a perspective view of the timing pulley;

FIG. 9 is a perspective view of the fixed sheave;

FIG. 10 is a perspective view of the stop device;

fig. 11 is a perspective view of the mounting shaft.

In the figure, a base 1, a rotating part 2, a first through hole 3, a limiting device 4, a long waist hole 5, a mounting shaft 6, a limiting part 7, a second through hole 8, a fixed wheel disc 9, a support column 10, a flat shaft 11, a round shaft 12, a locking bolt 13, a synchronous belt pulley 14, a support plate 15, an annular flange 16, an annular groove 17, a concave platform spigot 18 and a universal ball 19.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

The first embodiment is as follows:

referring to fig. 1 to 11, the cavity revolving stage of this embodiment, including base 1 and rotation piece 2, be equipped with first perforation 3 on the roof of base, be equipped with a plurality of universal balls 19 and stop device 4 that are located the base surface around the first perforation, still be equipped with long waist hole 5 or shifting chute on the roof of base, stop device is including passing long waist hole or bottom and being located the installation axle 6 of shifting chute, locate the installation epaxial and can with the locating part 7 that rotates the peripheral contact of piece, the rotation piece is located the top of base, the bottom surface and the universal ball contact of rotation piece, the middle part of rotating the piece is equipped with the second perforation 8 that pierces through the rotation piece and be located first perforation top.

According to the hollow rotating platform, the universal balls arranged on the surface of the base realize the support and vertical positioning of the rotating piece, and the rotating piece can stably rotate due to the arrangement of the universal balls, so that the friction generated during the rotation of the rotating piece is reduced. The rotation piece is arranged, so that the installation and rotation driving functions of the detected workpiece are realized, and the detection personnel can perform ultrasonic detection on the peripheral surface of the detected workpiece. The first perforation and the second perforation that rotates the piece middle part set up on the base diapire for the bottom of detecting the work piece can pass first perforation and second perforation in proper order and stretch out from the bottom surface of base roof, thereby made things convenient for operating personnel to the detection of its bottom. In addition, the arrangement of the limiting device and the long waist hole or the moving groove facilitates the horizontal positioning and the concentricity adjustment of the rotating part and the rotating part thereon by an operator, so that the detection equipment below the base can accurately detect the detected part. To sum up, this cavity revolving stage adopts low price, easily purchase standard part preparation such as base, universal ball, locating part, rotation piece, and its overall cost is lower, and its simple structure, easy to maintain, practicality are stronger moreover, but the testing personnel field installation debugging, and it is very convenient to use.

Wherein, the base can be box, cage class isotructure, and in this embodiment, the base includes fixed rim plate 9 and four support columns 10 below. The top of support column is fixed in the bottom surface of fixed rim plate through the screw, and first perforation is located the middle part of fixed rim plate.

The universal ball is preferably universal bull's eye, and its fixing base sets firmly in the upper surface of fixed rim plate, and in this embodiment, universal ball and stop device's figure all is preferably 8, and a plurality of universal ball evenly distributed is on the circumference that uses fixed rim plate axis as the center to the top surface of universal ball is located same horizontal plane, in order to guarantee the high location to the rotation piece.

In this embodiment, the surface of fixed rim plate sets up 8 long waist holes, and the installation axle includes that the flat axle 11 of bottom and long waist hole width adaptation and upper portion are used for installing the round axle 12 of locating part, and the bottom of installation axle sets up rather than threaded connection's locking bolt 13, and the round epaxial on installation axle upper portion is located to the locating part. The limiting part can be a fixed block with a smooth surface and fixedly connected with the mounting shaft, or a roller wheel which is rotatably arranged at the top end of the mounting shaft. In this embodiment, the limiting member is a limiting bearing mounted on the circular shaft.

When adjusting horizontal position and concentricity, operating personnel at first loosen the locking bolt of installation axle bottom to with the installation axle along long waist hole removal, until the surface of spacing bearing with rotate global contact, again through locking bolt with install the axle locking on fixed rim plate afterwards.

The long waist hole can extend along the radial direction of the fixed wheel disc so as to facilitate the adjustment of an operator to the limiting device. In addition, the movement of the limiting device can be realized by adopting a mode of arranging a moving groove on the fixed wheel disc, the specific structure and principle of the limiting device are similar to those of the long waist hole, and the detailed description is omitted here.

In this embodiment, the rotating member includes a timing pulley 14 and a carrier plate 15 thereon, and the second through hole is located in the middle of the carrier plate. The bottom surface of the synchronous pulley is provided with an annular flange 16, and the surface of the annular flange is provided with an annular groove 17 matched with the limiting bearing. During adjustment, an operator can move the limiting bearing through the mounting shaft until one end of the limiting bearing enters the annular groove and is tightly attached to the bottom surface of the annular groove. The setting of annular groove makes spacing bearing more accurate to the location of rotating the piece, and it is also more stable when rotating the piece.

The peripheral face of synchronous pulley is provided with the tooth, and during the detection, operating personnel accessible hold-in range and motor element realize the rotation drive to synchronous pulley. In addition, the rotation driving can be carried out through a gear transmission device and a belt transmission device, and even the slow rotation of the rotating part can be realized through a manual driving mode.

The upper surface of the synchronous belt wheel is provided with a groove, and the annular supporting plate is fixedly arranged in the groove through a screw. The inner side edge of the supporting plate is provided with a concave platform spigot 18 to realize the positioning and the clamping of the detected workpiece. The corresponding supporting plate can be installed by the detection personnel according to the specific model of the detected workpiece.

In this embodiment, the first through hole and the second through hole are preferably circular holes.

The above are only preferred embodiments of the present invention, which are used to assist the skilled person in implementing the corresponding technical solutions, and are not used to limit the scope of the present invention, which is defined by the appended claims. It should be noted that, for those skilled in the art, on the basis of the technical solution of the present invention, several modifications and variations can be made equivalent thereto, and these modifications and variations should also be regarded as the protection scope of the present invention. Also, it should be understood that although the present description has been described in terms of the above embodiments, not every embodiment may include only a single embodiment, and such description is for clarity only, and those skilled in the art will recognize that the description is taken as a whole, and that the embodiments may be suitably combined to form other embodiments as will be appreciated by those skilled in the art.

Claims (5)

1. A cavity revolving stage which characterized in that: including base (1) and rotate piece (2), be equipped with first perforation (3) on the roof of base, be equipped with a plurality of universal balls (19) and stop device (4) that are located the base surface around first perforation, still be equipped with long waist hole (5) or shifting chute on the roof of base, stop device is including passing long waist hole or bottom and being located installation axle (6) of shifting chute, locate the installation epaxial and can with rotate locating part (7) of global contact, rotate the top that the piece is located the base, the bottom surface that rotates the piece with universal ball contact, the middle part that rotates the piece is equipped with and pierces through the second perforation (8) that rotate the piece and be located first perforation top.

2. The hollow rotary table according to claim 1, wherein: the base includes fixed rim plate (9) and many support columns (10), and the top of support column sets firmly on fixed rim plate, the middle part of fixed rim plate is located to first perforation, universal ball and stop device all set up in the upper surface of fixed rim plate.

3. The hollow rotary table according to claim 1, wherein: the rotating piece comprises a synchronous belt wheel (14) and a supporting plate (15), an annular flange (16) with the bottom end positioned in a first through hole is arranged on the bottom surface of the synchronous belt wheel, an annular groove (17) is formed in the peripheral surface of the annular flange, and the second through hole is positioned in the middle of the supporting plate.

4. The hollow rotary table according to claim 3, wherein: the limiting part is a limiting bearing matched with the annular groove.

5. The hollow rotary table according to claim 3, wherein: the inner side edge of the supporting plate is provided with a concave platform spigot (18).

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