CN218856254U

CN218856254U - Quick positioning and clamping device for flow-limiting hole part

Info

Publication number: CN218856254U
Application number: CN202223476773.6U
Authority: CN
Inventors: 李林娜; 罗赛南; 闫晓龙; 马跃辉; 杨延龙; 万德培; 郭丁来; 刘远平
Original assignee: Jiangxi Hongdu Aviation Industry Group Co Ltd
Current assignee: Jiangxi Hongdu Aviation Industry Group Co Ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-04-14
Anticipated expiration: 2032-12-26

Abstract

The utility model relates to a fast positioning clamping device of restricted aperture part belongs to metal machining equipment technical field. A rapid positioning and clamping device for a flow-limiting hole part comprises a positioning tool and a fastener; the positioning tool comprises a clamping part and a bearing part, wherein the clamping part is clamped with a three-jaw chuck on a machine tool, the center of the bearing part is provided with an opening, a flow limiting hole part is placed in the opening, and the bearing part provides support and circumferential positioning for the flow limiting hole part; the fastener is arranged on the bearing part and used for fixing the flow limiting hole part on the positioning tool. The utility model has the advantages of as follows: simple structure, convenient to use, the cost is reduced has improved parts machining efficiency, processingquality, provides new processing thinking for similar parts machining simultaneously.

Description

Quick positioning and clamping device for flow-limiting hole part

Technical Field

The utility model relates to a quick positioning clamping device of restricted aperture part belongs to metal machining equipment technical field.

Background

The flow-limiting hole part used in various mechanical equipment is mainly characterized in that the part is small in shape and difficult to clamp, the diameter of an outer circle is about phi 6, 9 phi 0.3 holes need to be drilled in a phi 2.7 circular surface, and workers are not easy to fix the part and align the hole positions. In the traditional method, a drill jig is adopted for processing, but the drill bit is easy to break due to a certain height of the drill jig, the service life is short, and the hole diameter is too small, so that an operator cannot clearly identify the hole positions of the drill jig, the drilled hole positions are not uniformly distributed, and the quality requirement and the high efficiency requirement of the product at present cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can improve machining efficiency, reduce operating personnel's the clamping degree of difficulty and the fast positioning clamping device of restricted aperture part of the processing degree of difficulty.

In order to realize the purpose, the utility model adopts the following technical scheme: a rapid positioning and clamping device for a flow-limiting hole part comprises a positioning tool and a fastener; the positioning tool comprises a clamping part and a bearing part, wherein the clamping part is clamped with a three-jaw chuck on a machine tool, the center of the bearing part is provided with an opening, a flow limiting hole part is placed in the opening, and the bearing part provides support and circumferential positioning for the flow limiting hole part; the fastener is arranged on the bearing part and used for fixing the flow limiting hole part on the positioning tool.

Preferably, the upper surface of the flow restriction orifice part is flush with or higher than the upper surface of the opening.

Preferably, the fastening piece is a tightening nut, an inner hole of the tightening nut is a stepped hole, and an inner thread is arranged at the end of the large hole and is in threaded connection with the bearing part; the inner diameter of the small hole end is smaller than the outer diameter of the flow limiting hole part; the orifice end compresses the circumference of the orifice restriction orifice fitting when the tightening nut is tightened on the bearing.

Preferably, a notch is formed in the circumference of the opening, the maximum caliber of the notch is smaller than the diameter of the opening, and the notch is communicated with the opening.

The working principle is as follows: the limiting hole part is located on the center of the tool in a shape matched with the locating tool, the locating tool is matched with the tightening nut through internal and external threads to fix the limiting hole part on the locating tool, and the whole locating device is clamped on a machine tool through a three-jaw chuck so as to meet the locating and clamping requirements of a numerical control machining center.

Compared with the prior art, the utility model has the advantages of as follows: simple structure, convenient to use, the cost is reduced has improved parts machining efficiency, processingquality, provides new processing thinking for similar parts machining simultaneously.

Drawings

FIG. 1 is a state diagram of the embodiment of the present invention assembled on a machine tool;

FIG. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic structural view of a flow-limiting hole component according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a positioning tool in an embodiment of the present invention;

fig. 5 is a schematic structural view of a tightening nut in the embodiment of the present invention;

in FIGS. 1-5, 1, restriction orifice feature; 2. positioning a tool; 3. screwing down the nut; 4. a three-jaw chuck.

Detailed Description

It should be noted that the terms "center", "upper", "lower", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model is used to place conventionally, and are only used for convenience of describing the utility model and simplifying the description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the utility model.

A rapid positioning and clamping device for a flow-limiting hole part comprises a positioning tool 2 and a fastener; the positioning tool comprises a clamping part and a bearing part, wherein the clamping part and the bearing part are integrally arranged and are coaxial; the clamping part is clamped with a three-jaw chuck 4 on a machine tool, the center of the bearing part is provided with an opening, the flow limiting hole part 1 is placed in the opening, and the bearing part provides support and circumferential positioning for the flow limiting hole part; the fastener is arranged on the bearing part and used for fixing the flow limiting hole part on the positioning tool.

As a preferred embodiment of this embodiment, the upper surface of the orifice limiting member 1 is flush with or higher than the upper surface of the opening.

As a preferred embodiment of the present embodiment, the fastening element is a tightening nut 3, an inner hole of the tightening nut 3 is a stepped hole, and an inner thread is arranged at an end of the large hole and is in threaded connection with the bearing part; the inner diameter of the small hole end is smaller than the outer diameter of the flow limiting hole part 1; when the tightening nut is tightened on the bearing part, the small hole end presses the circumference of the flow limiting hole part 1, namely, the part to be processed of the flow limiting hole part 1 is exposed outside.

In a preferred embodiment of this embodiment, a notch is formed in the circumference of the opening, the maximum diameter of the notch is smaller than the diameter of the opening, and the notch is communicated with the opening.

According to the appearance of the part 1 with the flow-limiting hole to be processed, a matched positioning tool 2 is manufactured, the part to be processed is clamped on the positioning tool 2 through the appearance of the part, and then the part to be processed is screwed and fixed through a screwing nut 3. The positioning tool 2 is positioned on a numerical control machine tool workbench through a three-jaw chuck 4. Therefore, the part to be machined and the positioning tool 2 are integrally positioned and clamped on a workbench of the numerical control machining center, and the part is machined through a numerical control program. The processing benchmark of having guaranteed the part is unified, has solved the clamping problem, extension cutter life makes operator's processing part simpler, convenient. Meanwhile, the surface quality of the part is improved, and the machining efficiency is improved.

Claims

1. The utility model provides a quick positioning and clamping device of restricted aperture part which characterized in that: comprises a positioning tool and a fastener; the positioning tool comprises a clamping part and a bearing part, wherein the clamping part is clamped with a three-jaw chuck on a machine tool, the center of the bearing part is provided with an opening, a flow limiting hole part is placed in the opening, and the bearing part provides support and circumferential positioning for the flow limiting hole part; the fastener is arranged on the bearing part and used for fixing the flow limiting hole part on the positioning tool.

2. The quick locating and clamping device for the flow-limiting hole part as claimed in claim 1, is characterized in that: the upper surface of the flow-limiting hole part is flush with or higher than the upper surface of the opening.

3. The quick locating and clamping device for the flow-limiting hole part as claimed in claim 1, is characterized in that: the fastener is a tightening nut, an inner hole of the tightening nut is a stepped hole, and an inner thread is arranged at the end of the large hole and is in threaded connection with the bearing part; the inner diameter of the small hole end is smaller than the outer diameter of the flow limiting hole part; the orifice end compresses the circumference of the orifice restriction orifice fitting when the tightening nut is tightened on the bearing.

4. The quick positioning and clamping device for the flow-limiting hole part as claimed in claim 1, wherein: the circumference of the opening is provided with a notch, the maximum caliber of the notch is smaller than the diameter of the opening, and the notch is communicated with the opening.