Dry ice deburring positioning jig for inner pipe of C-shaped nozzle of water toothpick

Abstract

The utility model discloses a dry ice deburring positioning jig for an inner pipe of a C-shaped nozzle of a water toothpick. Comprising a plate body, conducting notches are evenly distributed in the edge of the plate body, grooves used for containing the ends of the C-shaped nozzles are formed in the positions, located at upper ports of the conducting notches, of the plate body, the grooves are communicated with the conducting notches, the groove walls of the grooves are arc faces, the caliber of the grooves is larger than that of the conducting notches, and the opening of the grooves is larger than that of the conducting notches. The diameter of the communicating notch is larger than the diameter of a pipe body of the C-shaped nozzle of the water toothpick, but smaller than the diameter of the end of the C-shaped nozzle of the water toothpick. Therefore, when the C-shaped nozzle is used for removing burrs through dry ice and scouring an edge opening of the C-shaped nozzle, the movable space can be automatically staggered and deflected, so that a scouring point falls into an inner pipe opening of the C-shaped nozzle again, and the situation that the scouring point falls into the edge opening for a long time and the edge opening is damaged can be effectively avoided by means of automatic deflection.

Description

Technical Field

[0001] The utility model relates to the technical field of dry ice burr removal jigs, in particular to a positioning jig for dry ice burr removal of an inner tube of a C-shaped nozzle of a dental washer. Background Art

[0002] The principle of dry ice deburring is mainly to use the characteristics of dry ice at low temperatures. Dry ice particles are sprayed onto the surface of an object through a high-pressure air gun. Due to the extremely low temperature of dry ice (minus 78.5 degrees Celsius), it will quickly sublimate into gas and absorb a large amount of heat, causing the burr part to freeze quickly and become fragile. Subsequently, the high-speed airflow will knock off the fragile burrs, thereby achieving the effect of removing the burrs. In addition, when the dry ice particles hit the burrs, they will also transfer heat from the dry ice particles to the burrs, generating a significant temperature gradient and high shear force, which further helps to remove the burrs. Finally, the volume of gaseous CO2 produced by the sublimation of dry ice particles will expand instantly. This explosive increase will also bring pulses to the impact point, enhancing the deburring effect. The advantages of dry ice deburring include no chemical residue, no need for cleaning, no damage to the surface of parts, environmental protection and high efficiency. However, this method also has some disadvantages, such as certain restrictions on the shape of parts, and it is difficult to handle complex concave and convex surfaces or small holes. The main reason is that the accuracy of the dry ice spray trajectory is different, and it is easy to act directly on the part body, thereby damaging the part's own structure.

[0003] At present, in the inner tube processing process of the C-type nozzle of the toothbrush, the burrs in the inner tube need to be removed. However, the inner tube diameter of the C-type nozzle of the toothbrush is small. When using dry ice to remove the burrs of the inner tube, it is easy to wash the edge of the C-type nozzle. If the edge of the C-type nozzle is washed for a long time, the C-type nozzle itself will be damaged, resulting in a large number of defective products. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present utility model is to provide an inner tube ice deburring positioning fixture for a C-shaped nozzle of a dental washer.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A dry ice deburring positioning jig for the inner tube of a C-type nozzle of a tooth washer, comprising a plate body, with conducting slots evenly distributed on the edge of the plate body, and a groove for accommodating the end of the C-type nozzle provided at the upper end of the plate body located at the conducting slot, wherein the groove is communicated with the conducting slot, and the groove wall of the groove is an arc surface, wherein the caliber of the groove is larger than the conducting slot, and the diameter of the conducting slot is larger than the tube body diameter of the C-type nozzle of the tooth washer, but smaller than the end diameter of the C-type nozzle of the tooth washer.

[0007] Preferably, the edges of the conducting notch and the groove are both provided with chamfered edges.

[0008] Due to the adoption of the above scheme, the utility model sets a plate body to suspend a batch of C-type nozzles of the tooth washer through the conductive groove, and the groove is used to limit the end of the C-type nozzle of the tooth washer. Under the gravity of the C-type nozzle of the tooth washer, the end of the C-type nozzle of the tooth washer is always facing upward. At the same time, it also provides space for the C-type nozzle of the tooth washer to move. Therefore, when dry ice deburring is performed, when the edge of the C-type nozzle is flushed, the activity space will automatically stagger and swing, so that the flushing point falls into the inner tube mouth of the C-type nozzle again. Relying on this automatic swing, it can effectively avoid the flushing point falling on the edge for a long time and causing damage to the edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0010] Figure 2 It is a top view of an embodiment of the utility model.

[0011] Figure 3 It is a structural schematic diagram of the embodiment of the utility model when used in combination with a C-shaped nozzle of a dental washer. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0013] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0014] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0015] like Figures 1 to 3 As shown, the present embodiment provides a dry ice deburring positioning fixture for the inner tube of a C-type nozzle of a dental washer, comprising a plate body 1, the edge of the plate body 1 is evenly distributed with a conducting slot 2, the plate body 1 is provided with a groove 3 for accommodating an end 101 of the C-type nozzle at the upper end of the conducting slot 2, the groove 3 is communicated with the conducting slot 2, the groove wall of the groove 3 is an arc surface, wherein the caliber of the groove 3 is larger than the conducting slot 2, and the diameter of the conducting slot 2 is larger than the diameter of the C-type nozzle 10 of the dental washer. 0, but smaller than the diameter of the end 101 of the C-type nozzle 100 of the tooth washer, so that the C-type nozzle 100 of the tooth washer can be deflected, and the tube 102 below the C-type nozzle 100 will return to its position under the action of gravity. As for the connection between the plate body 1 and the external components, it is only necessary to connect through the surface area where the conducting slot 2 is not set, such as directly setting a pair of vertical rods (not shown in the figure) to support the plate body 1, so that the suspension of the C-type nozzle 100 of the tooth washer can be satisfied.

[0016] The present embodiment specifically sets a plate body 1 to suspend a batch of C-type tooth washer nozzles 100 through a conducting slot 2, and uses a groove 3 to limit the end of the C-type tooth washer nozzle 100. Under the gravity of the C-type tooth washer nozzle 100, the end 101 of the C-type tooth washer nozzle 100 is always facing upward. At the same time, it also provides space for the C-type tooth washer nozzle 100 to move. Therefore, when dry ice deburring is performed, when the edge of the C-type nozzle 100 is flushed, the activity space will automatically stagger and swing, so that the flushing point falls into the inner tube mouth of the C-type nozzle again. Relying on this automatic swing, it can effectively avoid the flushing point from falling on the edge for a long time and causing damage to the edge, thereby improving the product yield.

[0017] In addition, in order to improve the smoothness of product placement, the edges of the conducting slot 2 and the groove 3 of this embodiment are both provided with chamfered edges 4. Due to the existence of the chamfered edges 4, since the material of the plate body 1 itself is generally made of metal plate, if the chamfered edges 4 are not processed, it is also easy to scratch the C-shaped nozzle 100 of the tooth washer when it is placed.

[0018] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A dry ice deburring and positioning fixture for the inner tube of a C-shaped nozzle of a dental washer, characterized in that: It comprises a plate body, the edge of which is evenly distributed with conducting slots, the plate body is provided with a groove for accommodating the end of a C-type nozzle at the upper end of the conducting slot, the groove is communicated with the conducting slot, the groove wall of the groove is an arc surface, wherein the caliber of the groove is larger than the conducting slot, the diameter of the conducting slot is larger than the tube body diameter of the C-type nozzle of the tooth washer, but smaller than the end diameter of the C-type nozzle of the tooth washer.

2. A dry ice deburring and positioning jig for the inner tube of a C-shaped nozzle of a dental washer as claimed in claim 1, characterized in that: The edges of the conducting notch and the groove are both provided with chamfered edges.

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