The bell-mouthed process equipment of a kind of metal tube
Technical field
The utility model relates to the bell-mouthed process equipment of a kind of metal tube, especially a kind of bell-mouthed process equipment for processing air-conditioning connection pipe for internal-external unit.
Background technology
In prior art, for processing the bell-mouthed process equipment complex structure of air-conditioning connection pipe for internal-external unit, parts are more, and manufacturing procedure is many, cause working (machining) efficiency lower.Such as, Chinese patent CN203973193U is disclosed a kind of for the bell-mouthed process equipment of worked copper aluminium composite pipe, it comprises base, shaped device, expanding device and power set, shaped device comprises shaping geometrical clamp, ends cutting cutter, sander, cutter, reduced mouth part, turn-up device and squeezer, and expanding device comprises enlarging geometrical clamp, enlarging drift.When worked copper aluminium composite pipe horn mouth, the very lengthy and tedious complexity of whole manufacturing procedure, various processing component switches frequent, causes whole working (machining) efficiency to decline, as long as wherein going wrong appears damaging or processing in certain processing component, product finally will be caused defective and scrap.
Summary of the invention
Therefore, in order to overcome the defect of prior art, the purpose of this utility model is that exploitation is a kind of easy to use, and process is simple, the bell-mouthed process equipment of the metal tube that production efficiency is higher and product percent of pass is higher.
For achieving the above object, the utility model by the following technical solutions:
The bell-mouthed process equipment of a kind of metal tube, comprises for the shaping enlarging drift of the fixture of the metal tube that is fixedly clamped, the reducing drift for the end reducing to metal tube, the expanding end for metal tube, it is characterized in that:
The front portion of described fixture has the conical socket of the leading section of exposing described metal tube;
Described reducing drift is provided with arc groove, and the diameter of described arc groove is greater than or equal to the external diameter of described metal tube;
The front end of described enlarging drift is coaxially arranged with flange section and flared section from front to back, and described flange section is the tip given prominence to forward, and described flared section is the taper platform matched with described conical socket.
Preferably, described flange section comprises nose cone and the transition conical section of head and the tail connection successively from front to back, and described cone headed coning angle is greater than or equal to the coning angle of described transition conical section.
Preferably, the coning angle of described conical socket and described taper platform is equal.
Owing to adopting technique scheme, process equipment of the present utility model is relative to prior art, parts greatly reduce, an enlarging drift just can complete the process of flange, flare formation, manufacturing procedure is shortened, production efficiency improves greatly, and reduces the probability because product bad during more component processing occurs, reduces fraction defective.
Accompanying drawing explanation
Fig. 1 is the structural representation of fixture of the present utility model.
Fig. 2 is the structural representation of reducing drift of the present utility model.
Fig. 3 is the structural representation of enlarging drift of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is preferred embodiment described in detail.
Referring to Fig. 1 to Fig. 3, the bell-mouthed process equipment of a kind of metal tube, for processing the horn mouth of air-conditioning connection pipe for internal-external unit, being particularly useful for the tube connector of copper alloy material.It comprises fixture 1, reducing drift 2 and enlarging drift 3.
Refer to Fig. 1, fixture 1 is put together by two parts, and centre has the clamping space 11 of grip pipe, the anterior conical socket 12 with the leading section of exposing metal tube after two parts split of fixture 1.For the ease of metal tube hand-manipulated, adjustment metal tube front end exposed length, the rear portion of fixture 1 has the conical socket 13 of the rearward end exposing metal tube.
Refer to Fig. 2, the front end face of reducing drift 2 is corresponding with the front end face of fixture 1, the center of the front end face of reducing drift 2 is provided with the arc groove 21 corresponding with the center of the conical socket 12 of fixture, and the diameter of arc groove 21 is greater than or equal to the external diameter of metal tube.
Refer to Fig. 3, the front end of enlarging drift 3 is coaxially arranged with flange section 31 and flared section 32 from front to back, flange section 31 is tip outstanding forward, and flared section 32 is the taper platform matched with the conical socket 12 in fixture 1, and the coning angle of conical socket 12 and described taper platform is equal.Flange section 31 comprises nose cone 311 and the transition conical section 312 of head and the tail connection successively from front to back, and the coning angle of nose cone 311 is greater than or equal to the coning angle of transition conical section 312.
During processing metal pipe horn mouth, separately, metal tube is put into the clamping space of fixture 1, make the leading section of metal tube expose the certain length of conical socket 13, then clamping and fixing device 1, makes metal tube fix to two parts of fixture 1.Then, aim at the leading section of metal tube with the arc groove 1 of reducing drift 2, the direction of axis line along metal tube impacts to the leading section of metal tube, makes the leading section opening adduction of metal tube.Finally, the leading section of metal tube is aimed at enlarging drift 3, direction of axis line along metal tube impacts to the leading section of metal tube, in this process, nose cone 311 first pours from the front end of metal tube, the part low-angle of the leading section opening adduction of metal tube ground is turned down inwards, transition conical section 312 pours in metal tube again, by the inwardly turnover continuously of the part wide-angle of the leading section opening adduction of metal tube ground, the part of the leading section opening adduction of metal tube is roughly turned down to be fitted on inwall, rely on the taper platform structure of flared section 32 that the double-decker of the fold inward of metal tube leading section is expanded outwardly formation horn mouth again, by the pressuring action of the taper platform of flared section 32 and the conical socket 12 of fixture 1, make the horn mouth double-decker compacting of metal tube front end, guarantee that bell-mouthed thickness is even, obtain the coning angle identical with conical socket 12.
Known from the present embodiment, the bell-mouthed process equipment structure of metal tube of the present utility model is simplified, and design ingenious, process is easy, shortens work flow, improves the production qualification rate of product.
Above-described embodiment is only for illustrating technical conceive of the present utility model and feature; its object is to person skilled in the art can be understood content of the present utility model and implement according to this; protection domain of the present utility model can not be limited with this; all equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.