Positioning sleeve

Abstract

The utility model provides a positioning sleeve, and belongs to the technical field of polishing equipment. The sand changing mechanism comprises a stock bin upper clamping ring, a stock bin positioning core and a positioning column; the stock bin upper clamping ring is configured to be connected with an external driving mechanism and can drive the whole positioning sleeve to rotate under the driving of the external driving mechanism; and one end of the stock bin upper clamping ring is fixed on an external driving mechanism, and a groove at the other end of the stock bin upper clamping ring is tangentially matched with the stock bin positioning core upper positioning column. The positioning sleeve is arranged above the sand changing barrel and comprises the stock bin upper clamping ring, the stock bin positioning core and the positioning column, the positioning column and the funnel-shaped groove of the stock bin upper clamping ring are matched in a tangent mode so that the sand changing barrel can slide down from any position, and finally it can be guaranteed that the eccentric polishing disc is perpendicular to the sand changing barrel, so that the press fit structure is improved, the sand pasting success rate is increased, and the production efficiency is improved. And the machine collision risk caused by inaccurate sand pasting is reduced, and the polishing efficiency and the yield are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of polishing equipment, and specifically relates to a positioning sleeve. Background Art

[0002] In the related art, the eccentric throwing disc cannot be guaranteed to be vertical to the sand changing barrel when changing the sand, and the sand will be off-center when changing the sand, resulting in the risk of inaccurately sticking the sandpaper. Improper sticking of the sandpaper will cause the equipment to alarm frequently and may even cause a collision, and will cause the polished material to be in bad condition, thereby reducing the polishing efficiency and increasing the defective product rate.

[0003] In view of this, this application is proposed. Utility Model Content

[0004] The purpose of this application is to provide a sand changing mechanism to solve the above-mentioned technical problems existing in the prior art.

[0005] This application is implemented as follows:

[0006] The present application provides a positioning sleeve, comprising a silo upper retaining ring, a silo positioning core and a positioning column; the silo upper retaining ring is configured to be connected to an external driving mechanism, and can drive the overall rotation of the positioning sleeve under the drive of the external driving mechanism; one end of the silo upper retaining ring is fixed to the external driving mechanism, and the other end of the retaining ring is tangentially matched with the positioning column on the silo positioning core.

[0007] The technical solution adopted in this application can achieve the following beneficial effects:

[0008] In the utility model, a positioning sleeve is provided above the sand changing barrel, including a silo upper retaining ring, a silo positioning core and a positioning column. The tangential cooperation between the positioning column and the funnel-shaped groove of the silo upper retaining ring allows the eccentric throwing disc to slide from any position, and finally ensures that the eccentric throwing disc is vertical to the sand changing barrel, thereby improving the pressing structure, increasing the success rate of sand pasting, reducing the risk of collision caused by inaccurate sand pasting, and improving the polishing efficiency and yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments of the utility model or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0010] Figure 1 It is a schematic diagram of the overall structure of a positioning sleeve provided by some embodiments of the utility model, wherein the sand changing bucket is not shown;

[0011] Figure 2It is a schematic diagram of the overall structure of a positioning sleeve provided by some embodiments of the utility model;

[0012] In the figure: 10, silo upper retaining ring; 20, silo positioning core; 30, positioning column; 40, sand changing bucket; 41, upper cover plate. DETAILED DESCRIPTION

[0013] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.

[0014] The present application embodiment provides a positioning sleeve, referring to Figure 1 and Figure 2 As shown, the mechanism includes a silo upper retaining ring 10, a silo positioning core 20 and a positioning column 30; the silo upper retaining ring 10 is configured to be connected to an external driving mechanism, and can drive the overall rotation of the positioning sleeve under the drive of the external driving mechanism; one end of the silo upper retaining ring 10 is fixed on the external driving mechanism, and the groove at the other end thereof is tangentially matched with the positioning column 30 on the silo positioning core 20.

[0015] The upper surface of the upper retaining ring 10 of the silo is fixed to the external driving mechanism by five bolts; the positioning column 30 is tangentially matched with the upper retaining ring 10 of the silo.

[0016] The upper retaining ring 10 of the silo is hollow in design, and a circular opening is provided in the middle.

[0017] The upper retaining ring 10 of the silo is designed with a plurality of funnel-shaped hollows, which are used to cooperate with the tangent of the positioning column 30 so that it can move up, down, left and right in the hollows.

[0018] The silo positioning core 20 is designed to be hollow, and a circular opening is provided in the middle.

[0019] The positioning column 30 is installed in the threaded hole of the silo positioning core 20, and the positioning column 30 is tangentially matched with the hollow part of the clamping ring 10 on the silo.

[0020] In some embodiments of the present application, reference Figure 1 As shown, a positioning sleeve is provided above the sand changing barrel 40, including a silo upper retaining ring 10, a silo positioning core 20 and a positioning column 30. The tangential cooperation between the positioning column 30 and the funnel-shaped groove of the silo upper retaining ring 10 allows the eccentric throwing disc to slide from any position, and ultimately ensures that the eccentric throwing disc is vertical to the sand changing barrel, thereby improving the pressing structure, increasing the success rate of sand sticking, reducing the risk of collision due to inaccurate sand sticking, and improving the polishing efficiency and yield rate.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning sleeve, characterized in that: The invention comprises a silo upper retaining ring (10), a silo positioning core (20) and a positioning column (30); the silo upper retaining ring (10) is configured to be connected to an external driving mechanism and can drive the overall rotation of the positioning sleeve under the drive of the external driving mechanism; one end of the silo upper retaining ring (10) is fixed on the external driving mechanism, and the groove at the other end thereof is tangentially matched with the positioning column (30) on the silo positioning core (20).

2. A positioning sleeve according to claim 1, characterized in that: The upper surface of the silo upper retaining ring (10) is fixed to the external driving mechanism by five bolts; the positioning column (30) is tangentially matched with the silo upper retaining ring (10).

3. A positioning sleeve according to claim 2, characterized in that: The upper retaining ring (10) of the silo is hollow in design, and a circular opening is provided in the middle of the upper retaining ring of the silo.

4. A positioning sleeve according to claim 1, characterized in that: The upper retaining ring (10) of the silo is surrounded by a plurality of hollows shaped like funnels, and the hollows are used to cooperate with the tangent of the positioning column (30), so that the positioning column (30) can move up, down, left and right at the hollows.

5. A positioning sleeve according to claim 1, characterized in that: The silo positioning core (20) is surrounded by a plurality of threaded holes, and the threaded holes are used to install the positioning columns (30). The bottom surface of the silo positioning core (20) is fixedly connected to the upper cover plate (41) of the sand changing bucket by four bolts.

6. A positioning sleeve according to claim 5, characterized in that: The silo positioning core (20) is hollow in design, and a circular opening is provided in the middle of the silo positioning core.

7. A positioning sleeve according to claim 1, characterized in that: The positioning column (30) is installed in the threaded hole of the silo positioning core (20), and the positioning column (30) is tangentially matched with the hollowed-out portion of the clamping ring (10) on the silo.

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