CN211413777U - Drill guide sleeve for processing small-diameter inclined connecting hole of pump body of metering pump - Google Patents

Abstract

The utility model relates to a bore guide pin bushing for processing measuring pump body minor diameter inclined connection hole, including boring guide pin bushing body (1) and bearing (2), the cross section of boring guide pin bushing body (1) is "T" word shape, and it is provided with erection column (11) and lower location cylinder (12), and lower location cylinder (12) set up in the below of last erection column (11), eccentric settings left, and the top left side of going up erection column (11) is provided with inclined plane (13), is provided with on inclined plane (13) perpendicularly and bores guide hole (14), and bearing (2) set up under on location cylinder (12), the utility model discloses simple structure is novel, and the function is practical, and installation and positioning is convenient accurate, can guarantee the position and the angle requirement of inclined connection hole, has guide guard action to the drill bit, increases the life of drill bit, but reduction in processing cost, labour saving and time saving.

Description

Drill guide sleeve for processing small-diameter inclined connecting hole of pump body of metering pump

Technical Field

The utility model relates to a frock clamp technical field is used in machining, concretely relates to a bore guide pin bushing for processing measuring pump body minor diameter inclined connection hole.

Background

The metering pump is a core component of chemical fiber textile machinery, and the spinning performance of the chemical fiber textile machinery is directly influenced by the performance of the metering pump. The pump body of the metering pump is a core part of the metering pump, and the processing quality requirement of the metering pump is very high. As a metering pump body that fig. 4 and fig. 5 illustrate, the middle processing has the installation shaft hole, and the processing of the next door of installation shaft hole has into the gluey hole, has processed an oblique connecting hole on the lateral wall of advancing the gluey hole, and with installation shaft hole intercommunication, there is position and angle requirement between oblique connecting hole and the gluey hole of advancing, and the oblique connecting hole is the aperture, and its diameter is less to be phi 3mm, and its drilling processing degree of difficulty is big, and current processing method is: the metering pump body is clamped and positioned by the tool fixture, and the drilling machine is used for directly drilling and machining by the drill bit.

Disclosure of Invention

The utility model aims to solve the not enough of prior art existence, provide a bore guide pin bushing for processing measuring pump body minor diameter oblique connecting hole, simple structure is novel, and the function is practical, and the installation location is convenient accurate, can guarantee the position and the angle requirement of oblique connecting hole, has the guide guard action to the drill bit, increases the life of drill bit, but reduction in processing cost labour saving and time saving.

The utility model adopts the technical proposal that: the utility model provides a bore guide pin bushing for processing measuring pump body minor diameter inclined connection hole, including boring guide pin bushing body 1 and bearing 2, the cross section of boring guide pin bushing body 1 is "T" word shape, it is provided with erection column 11 and lower location cylinder 12, lower location cylinder 12 sets up the below at last erection column 11, eccentric settings left, the top left side of going up erection column 11 is provided with inclined plane 13, be provided with on the inclined plane 13 and bore guide hole 14 perpendicularly, bearing 2 sets up on lower location cylinder 12, be equipped with anti-skidding decorative pattern on the lateral surface of going up erection column 11, the upper end of boring guide hole 14 is equipped with the circular cone hole, the diameter size of boring guide hole 14 is greater than the diameter size of the inclined connection hole of measuring pump body part, the angle between boring guide hole 14 and the lower location cylinder 12 equals the angle between the inclined connection hole of measuring pump body part and the.

Compared with the prior art, the utility model following beneficial effect has: simple structure is novel, and the function is practical, and the installation location is convenient accurate, can guarantee the position and the angle requirement of oblique connecting hole, has the guide guard action to the drill bit, increases the life of drill bit, can reduce the processing cost, labour saving and time saving.

Drawings

Figure 1 is a schematic structural diagram of the present invention,

figure 2 is a top view of figure 1,

figure 3 is a schematic view of the installation and use of the utility model,

figure 4 is a schematic view of the pump body parts of the metering pump,

fig. 5 is a cross-sectional view of fig. 4.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

As shown in figures 1 and 2, a drill guide sleeve for processing a small-diameter inclined connecting hole of a pump body of a metering pump comprises a drill guide sleeve body 1 and bearings 2, wherein the cross section of the drill guide sleeve body 1 is in a T shape and is provided with an upper mounting column 11 and a lower positioning column 12, the lower positioning column 12 is arranged below the upper mounting column 11 and is eccentrically arranged leftwards, an inclined plane 13 is arranged on the left side above the upper mounting column 11, the arrangement direction of the inclined plane 13 is the same as the eccentric direction of the lower positioning column 12, a drill guide hole 14 is vertically arranged on the inclined plane 13, the two bearings 2 are respectively arranged at the upper end and the lower end of the lower positioning column 12, the bearings 2 are fixedly connected with the lower positioning column 12 through a shaft retainer ring, anti-slip patterns are arranged on the outer side surface of the upper mounting column 11, a conical hole is arranged at the upper end of the drill guide hole 14, and the diameter size of the, the diameter size is phi 3.3mm, and the angle between the drilling guide hole 14 and the lower positioning cylinder 12 is equal to the angle between an inclined connecting hole and a glue inlet hole of a metering pump body part.

As shown in fig. 3, when the drill guide sleeve is used, the lower positioning cylinder 12 is inserted into a glue inlet of a metering pump body part, the outer circle of the bearing 2 is in contact with the glue inlet, the lower end face of the upper mounting column 11 is in contact with the metering pump body part, the drill guide sleeve is eccentrically arranged, and under the action of eccentric gravity, the drill guide sleeve body 1 automatically aligns and swings around the bearing 2, so that the inclined plane 13 naturally faces upwards, and the drill guide hole 14 naturally and vertically faces downwards.

This drill guide sleeve utilizes the lower terminal surface and the bearing 2 of last erection column 11 to insert the installation location, utilizes eccentric self-alignment principle to carry out vertical location, and convenient operation is swift, and the location is accurate, can guarantee the position and the angle requirement of oblique connecting hole, is equipped with anti-skidding decorative pattern on the lateral surface of last erection column 11, is favorable to this drill guide sleeve to pull out to insert the installation, and the upper end of drilling guide hole 14 is equipped with the taper hole, is favorable to improving the guide protection to the drill bit, increases the life of drill bit.

Without being limited thereto, any changes or substitutions which are not thought of through creative efforts should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (1)

1. A drill guide sleeve for processing a small-diameter inclined connecting hole of a pump body of a metering pump is characterized by comprising a drill guide sleeve body (1) and a bearing (2), wherein the cross section of the drill guide sleeve body (1) is in a T shape, the anti-skid rubber sealing ring is provided with an upper mounting column (11) and a lower positioning column (12), the lower positioning column (12) is arranged below the upper mounting column (11), the left side of the upper mounting column (11) is eccentrically arranged, an inclined plane (13) is arranged on the left side of the upper mounting column (11), a drilling guide hole (14) is vertically arranged on the inclined plane (13), a bearing (2) is arranged on the lower positioning column (12), anti-skid patterns are arranged on the outer side surface of the upper mounting column (11), a conical hole is arranged at the upper end of the drilling guide hole (14), the diameter size of the drilling guide hole (14) is larger than that of an inclined connecting hole of a metering pump body part, and the angle between the drilling guide hole (14) and the lower positioning column (12) is equal to that between the inclined connecting hole of.

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