CN211965659U

CN211965659U - Hydraulic bulging pipe expanding die

Info

Publication number: CN211965659U
Application number: CN202020195348.1U
Authority: CN
Inventors: 吕进国; 邓海平
Original assignee: Foshan Guoxing Xianda Vehicle Air Condition And Cooling Parts Co ltd
Current assignee: Foshan Guoxing Xianda Vehicle Air Condition And Cooling Parts Co ltd
Priority date: 2020-02-22
Filing date: 2020-02-22
Publication date: 2020-11-20
Anticipated expiration: 2030-02-22

Abstract

The utility model discloses a hydraulic pressure bulging expander die, including expander, bulge loop, fixed block and thimble, the expansion joint has been seted up on the expander, the one end of expander is equipped with the boss, the one end surface that the expander deviates from the boss is equipped with the bulge loop, the expander rises at the one end of hollow tube through the bulge loop and appears the bulge loop line, the inserting groove has been seted up to the inboard of expander, the expander is located the bottom of inserting groove and has seted up the expansion hole, the one end of thimble is equipped with the fixed block, the thimble passes through the fixed block and installs in hydraulic cylinder's assembly end. The utility model discloses possess and can improve bulging expansion strength and fixed reliability effectively, than traditional artifical spot welding activity duration directly reduce more than 6 times, improve more than 1 times than the bulging expansion strength that does not have the bulge loop and fixed reliability at least, can effectively visualize the operation process simultaneously, stop the advantage of leaking the bad outflow of process.

Description

Hydraulic bulging pipe expanding die

Technical Field

The utility model relates to a vehicle air conditioner cooling part technical field specifically is a hydraulic pressure bulging die.

Background

An automobile air conditioning device (air conditioning device) is simply referred to as an automobile air conditioner. The temperature, humidity, air cleanliness and air flow in the automobile compartment are adjusted and controlled in the optimal state, a comfortable riding environment is provided for passengers, and the travel fatigue is reduced; the ventilation device creates good working conditions for drivers and plays an important role in ensuring safe driving. Generally including refrigeration units, heating units, and ventilation units. The combined device makes full use of the limited space in the automobile, has simple structure and convenient operation, is an internationally popular modern automobile air-conditioning system, the automobile air-conditioning system needs to insert and fix a connector in a hollow pipe when in use, the mouth of the inner pipe is conventionally inserted into the connector at the present stage, the inner pipe is fixed by adopting spot welding from the inside, or the smooth surface expansion die expander is adopted for fixing, but the spot welding is adopted from the inside to fix the inner pipe, the operation is difficult, the processing time is long, the smooth surface expansion die expander is adopted for fixing, and the smooth surface expansion die expander is easily separated from the hollow pipe, so the using effect is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydraulic pressure bulging die, possess and to improve bulging add die strength and fixed reliability effectively, directly reduce more than 6 times than traditional artifical spot welding activity duration, improve more than 1 times than the bulging add die strength that does not have the bulge loop and fixed reliability at least, can effectively visualize the operation process simultaneously, stop the advantage of leaking the bad outflow of process, inside the conventional inner tube mouth of pipe male joint of present stage has been solved, adopt spot welding to fix its inner tube from inside, perhaps adopt plain noodles expand die expand tube fixed, nevertheless adopt spot welding to fix difficult operation to its inner tube from inside, process time is long, it is fixed to adopt plain noodles expand die expand tube, plain noodles expand die expand tube easily with the hollow tube separation, thereby influence the problem of its result of use.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hydraulic bulging expander die, includes expander, bulge loop, fixed block and thimble, the expansion joint has been seted up on the expander, the one end of expander is equipped with the boss, the one end surface that the expander deviates from the boss is equipped with the bulge loop, the expander is expanded at the one end of hollow tube through the bulge loop and is gone out the bulge loop line, the inserting groove has been seted up to the inboard of expander, the expander is located the bottom of inserting groove and has been seted up the expansion hole, the one end of thimble is equipped with the fixed block, the thimble passes through the fixed block and installs the assembly end at hydraulic cylinder.

Preferably, the insertion groove is communicated with the expansion hole, and the insertion groove is communicated with the hollow pipe through the expansion hole.

Preferably, the number of the expansion joints is four, and the expansion pipe is divided into four parts with equal size through the expansion joints.

Preferably, the diameter of the ejector pin is matched with the inner diameter of the insertion groove, and the diameter of the expansion hole is smaller than that of the ejector pin.

Preferably, the number of the convex rings is three, and the three convex rings are uniformly distributed on the pipe expanding.

Compared with the prior art, the beneficial effects of the utility model are that: through setting up the expander, the one end of expander is equipped with the bulge loop, and the one end that the expander deviates from the bulge loop is equipped with the boss, the boss divide into four parts that the size is the same through the dilatation joint, when using, the user passes through the fixed block installation lock with the thimble at hydraulic cylinder's assembly end, later the user overlaps the expander on the thimble, open the oil pump and make oil station start-up work, the mouth of pipe hole that will be assembled inserts the expander and confirms the bulge loop high position, start-up hydro-cylinder makes the thimble upwards act and promote the expansion hole expansion of expander, the hollow mouth of pipe that will be assembled directly expands shape and expands to with joint looks adaptation, and make three bulge loop striations of bulging effectively with joint inside groove cooperation, reliable fixed has been realized.

Drawings

FIG. 1 is a schematic sectional view of the pipe expanding apparatus of the present invention;

FIG. 2 is a schematic side view of the pipe expanding apparatus of the present invention;

fig. 3 is a schematic view of the main view of the thimble of the present invention.

In the figure: 1. a boss; 2. inserting grooves; 3. expanding the pipe; 4. a convex ring; 5. expanding the hole; 6. expanding the seam; 7. a fixed block; 8. and (4) a thimble.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to fig. 3, the present invention provides an embodiment: the utility model provides a hydraulic bulging die, including the expander 3, the bulge loop 4, fixed block 7 and thimble 8, the crack 6 has been seted up on the expander 3, crack 6 is equipped with four altogether, and expander 3 separates for four parts that the size equals through crack 6, the one end of expander 3 is equipped with boss 1, the one end surface that expander 3 deviates from boss 1 is equipped with bulge loop 4, bulge loop 4 is equipped with threely altogether, and three bulge loop 4 evenly distributed on expander 3, expander 3 expands at the one end of hollow tube through bulge loop 4 and appears the bulge loop line, the hollow pipe mouth of pipe expands to and connects looks adaptation through the bulging, and make three bulge loop 4 lines of bulging effectively with connect the inside groove cooperation, reliable fixed has been realized.

Inserting groove 2 has been seted up to expander 3's inboard, inserting groove 2 communicates with expansion hole 5 each other, and inserting groove 2 communicates through expansion hole 5 and hollow tube, expander 3 is located the bottom of inserting groove 2 and has seted up expansion hole 5, thimble 8's one end is equipped with fixed block 7, thimble 8 passes through fixed block 7 and installs the assembly end at hydraulic cylinder, thimble 8's diameter and inserting groove 2's internal diameter size looks adaptation, and the diameter of expansion hole 5 is less than thimble 8's diameter, the user passes through fixed block 7 with thimble 8 and installs the lock at hydraulic cylinder's assembly end, later the user overlaps expander 3 on thimble 8.

The working principle is as follows: when the user is using, the user installs the thimble 8 through fixed block 7 and locks the assembly end at hydraulic cylinder, later the user overlaps expander 3 on thimble 8, open the oil pump and make oil station start work, will be assembled mouth of pipe hole insert expander 3 and confirm the 4 high positions of bulge loop, start the hydro-cylinder and make thimble 8 move upwards and promote the expansion hole 5 expansion of expander 3, will be assembled the direct bulging expansion of hollow mouth of pipe to with connect looks adaptation, and make three bulge loop line of bulging effectively with connect the inside groove cooperation, realized reliable fixed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a hydraulic bulging die, includes expander (3), bulge loop (4), fixed block (7) and thimble (8), its characterized in that: the expanding joint is characterized in that an expanding joint (6) is formed in the expanding pipe (3), a boss (1) is arranged at one end of the expanding pipe (3), a convex ring (4) is arranged on the outer surface of one end, deviating from the boss (1), of the expanding pipe (3), convex ring grains are formed in one end of the hollow pipe through the convex ring (4), an insertion groove (2) is formed in the inner side of the expanding pipe (3), an expanding hole (5) is formed in the bottom end, located in the insertion groove (2), of the expanding pipe (3), a fixing block (7) is arranged at one end of the ejector pin (8), and the ejector pin (8) is installed at the assembling end of the hydraulic oil cylinder through the fixing block (7).

2. A hydraulic expander die as claimed in claim 1, wherein: the inserting groove (2) is communicated with the expanding hole (5), and the inserting groove (2) is communicated with the hollow pipe through the expanding hole (5).

3. A hydraulic expander die as claimed in claim 1, wherein: the number of the expansion joints (6) is four, and the expansion pipe (3) is divided into four parts with equal size through the expansion joints (6).

4. A hydraulic expander die as claimed in claim 1, wherein: the diameter of the thimble (8) is matched with the inner diameter of the insertion groove (2), and the diameter of the expansion hole (5) is smaller than that of the thimble (8).

5. A hydraulic expander die as claimed in claim 1, wherein: the number of the convex rings (4) is three, and the three convex rings (4) are uniformly distributed on the pipe expanding (3).