CN215510705U

CN215510705U - Conical head anti-loosening structure of hydraulic pipe fitting machining tool

Info

Publication number: CN215510705U
Application number: CN202121709735.3U
Authority: CN
Inventors: 蒋友荣
Original assignee: Zhejiang Value Mechanical & Electrical Products Co ltd
Current assignee: Zhejiang Value Mechanical & Electrical Products Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2022-01-14
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses a pipe fitting processing tool, which provides a conical head anti-loosening structure of a hydraulic pipe fitting processing tool, which has a simple structure, can effectively avoid the falling of a conical head, and can firmly and reliably fix the conical head, and solves the technical problems that in the prior art, a fastening screw of the conical head is easy to loosen and fall off, the conical head directly falls off after the conical head falls off, the normal work of the hydraulic pipe fitting processing tool is influenced, and the like.

Description

Conical head anti-loosening structure of hydraulic pipe fitting machining tool

Technical Field

The utility model relates to a pipe fitting machining tool, in particular to a conical head anti-loosening structure of a hydraulic pipe fitting machining tool, which is simple in structure, can effectively prevent a conical head from falling off, and is firm and reliable in conical head fixation.

Background

The hydraulic pipe fitting machining tool is usually in a high-frequency vibration state during working, the conical head is always in a pressed state and a pulled state, so that a fastening screw for fixing the conical head cannot be screwed on a piston, the fastening screw can loosen and disengage in the high-frequency vibration state after working for a long time, and the conical head directly falls off after the fastening screw disengages to influence the normal work of the hydraulic pipe fitting machining tool.

Disclosure of Invention

The utility model mainly provides a conical head anti-loosening structure of a hydraulic pipe fitting machining tool, which is simple in structure, can effectively prevent a conical head from falling off, is firm and reliable in conical head fixation, and solves the technical problems that in the prior art, a fastening screw of the conical head is easy to loosen and fall off, the conical head directly falls off after the fastening screw is separated off, the normal work of the hydraulic pipe fitting machining tool is influenced, and the like.

The technical problem of the utility model is mainly solved by the following technical scheme: the utility model provides a hydraulic pressure pipe fitting machining tool's conical head anti loosening structure, includes the piston of sliding connection in the drive intracavity of body, and the inboard end of conical head is pegging graft in the conical head mounting hole of piston outside end, and the conical head mounting hole lateral wall face that corresponds with the conical head has screwed connection the puller screw, and the inboard end butt of puller screw is on the outer ring surface of the conical head that corresponds, and the cover is equipped with the locking rand on the outer ring surface of the piston that the puller screw outside end corresponds, and the locking rand compresses tightly on the outside end of puller screw. Through the outside end suit locking rand at the top tight screw, the locking rand can be steel wire lock circle, elasticity steel ring or rubber circle etc. and long-term work is under the high-frequency vibration state, and the top tight screw also can not take place not hard up phenomenon of deviating from, also can not lead to the conical head to drop, makes hydraulic pressure pipe fitting processing instrument can keep normal work, simple structure, and the conical head is fixed firm reliable.

Preferably, an annular positioning groove is formed in the outer annular surface of the piston corresponding to the locking clamping ring, and the locking clamping ring is clamped in the annular positioning groove. The annular positioning groove is formed in the outer annular surface of the piston corresponding to the locking clamping ring, so that the locking clamping ring is clamped in the annular positioning groove, and the locking clamping ring can be prevented from deviating from the installation position to cause fastening and clamping failure.

Preferably, the outer end of the tightening screw is located in the outer ring surface of the corresponding piston. The outer side end of the jacking screw is positioned below the outer ring surface of the piston, so that the jacking screw is prevented from scraping foreign matters to cause safety problems, and meanwhile, the outer installation space of the piston is also enlarged.

The jacking screw can be a flat head screw, a screw rod and other fasteners, preferably, the jacking screw is a slotted set screw, and the locking retainer ring is clamped in a slot of the slotted set screw. The slotted set screw is used as a conventional standard part, is easy to purchase and low in cost, and can fully utilize the slot at the outer end of the slotted set screw to limit the position of the locking clamping ring so as to prevent the locking clamping ring from losing efficacy.

Preferably, the middle part of the outer side end of the piston extends outwards to form a conical head positioning column, the conical head mounting hole is coaxially arranged on the outer end face of the conical head positioning column, the middle part of the inner side end of the conical head extends outwards to form a mounting column, and the mounting columns are mutually matched and inserted in the conical head mounting hole. The conical head is inserted into the conical head positioning column at the outer side end of the piston through the mounting column, so that raw materials are saved, and the weight of the whole machine is reduced.

Preferably, an annular limiting groove is formed in the outer ring surface of the cone head corresponding to the jacking screw, and the inner side ends of the jacking screw are mutually matched and butted in the annular limiting groove. The annular limiting groove can limit the axial position of the conical head, and the axial positioning effect is achieved.

Therefore, the cone head anti-loosening structure of the hydraulic pipe fitting machining tool has the following advantages: the locking collar is sleeved at the outer side end of the jacking screw, so that the phenomenon that the jacking screw is loosened and separated cannot occur, and the conical head is fixed firmly and reliably; the annular positioning groove is formed in the outer annular surface of the piston corresponding to the locking clamping ring, so that the locking clamping ring is clamped in the annular positioning groove, and the locking clamping ring can be prevented from deviating from the installation position to cause fastening and clamping failure; the slotted set screw is a conventional standard component, is easily purchased and low cost, and can fully utilize the slot at the outer end thereof to further define the position of the locking collar.

Description of the drawings:

fig. 1 is a schematic structural view of a cone head anti-loosening structure of a hydraulic pipe fitting machining tool of the utility model;

fig. 2 is an enlarged view of a point a shown in fig. 1.

The specific implementation mode is as follows:

the technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.

Example (b):

as shown in fig. 1, the anti-loosening structure for a conical head of a hydraulic pipe fitting processing tool of the present invention includes a piston 3 slidably connected in a driving cavity 2 of a body 1 of the hydraulic pipe fitting processing tool, the middle of the outer end of the piston 3 coaxially and integrally extends outward to form a conical head positioning column 32, the middle of the outer end surface of the conical head positioning column 32 is coaxially provided with a conical head mounting hole 31, the inner end of the conical head 4 is inserted in the conical head mounting hole 31, the middle of the inner end of the conical head 4 coaxially and integrally extends outward to form a mounting column 41, the conical head 4 is mutually inserted in the conical head mounting hole 31 through the mounting column 41, a tightening screw 5 is screwed on the side wall surface of the conical head mounting hole 31 corresponding to the conical head 4, the tightening screw 5 is located in the middle of the matching section of the mounting column 41 and the conical head mounting hole 31, as shown in fig. 2, an annular limiting groove 42 is opened on the outer annular surface of the conical head 4 corresponding to the tightening screw 5, the inner end of the tightening screw 5 is mutually inserted in the annular limiting groove 42, the outer end of the jacking screw 5 is located in the outer annular surface of the corresponding conical head positioning column 32, in this embodiment, the jacking screw 5 is a slotted set screw, a slot 51 on the outer end surface of the slotted set screw is perpendicular to the axial line of the conical head 4, an annular positioning groove 7 is formed in the outer annular surface of the conical head positioning column 32 corresponding to the slot 51, a locking collar 6 is sleeved in the annular positioning groove 7, in this embodiment, the locking collar 6 is a steel wire locking ring, and the locking collar 6 corresponding to the jacking screw 5 is clamped in the slot 51 and compresses the outer end of the jacking screw 5.

The specific embodiments described herein are merely illustrative of the principles of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The utility model provides a conical head anti loosening structure of hydraulic pressure pipe fitting machining tool, includes piston (3) of sliding connection in drive chamber (2) of body (1), and the medial extremity of conical head (4) is inserted in conical head mounting hole (31) the end of piston (3) outside, its characterized in that: and a jacking screw (5) is screwed on the side wall surface of the conical head mounting hole (31) corresponding to the conical head (4), the inner side end of the jacking screw (5) is propped on the outer ring surface of the corresponding conical head (4), a locking collar (6) is sleeved on the outer ring surface of the piston (3) corresponding to the outer side end of the jacking screw (5), and the locking collar (6) is tightly pressed on the outer side end of the jacking screw (5).

2. The locking structure of the bit of the hydraulic pipe machining tool of claim 1, wherein: and an annular positioning groove (7) is formed in the outer annular surface of the piston (3) corresponding to the locking clamping ring (6), and the locking clamping ring (6) is clamped in the annular positioning groove (7).

3. The locking structure of the bit of the hydraulic pipe machining tool of claim 1, wherein: the outer side end of the tightening screw (5) is positioned in the outer ring surface of the corresponding piston (3).

4. The locking structure of the bit of the hydraulic pipe machining tool of claim 1, wherein: the jacking screw (5) is a slotted set screw, and the locking retainer ring (6) is clamped in a slot (51) of the slotted set screw.

5. The locking structure of the bit of the hydraulic pipe machining tool of claim 1, wherein: the middle of the outer side end of the piston (3) extends outwards to form a conical head positioning column (32), the conical head mounting hole (31) is coaxially arranged on the outer end face of the conical head positioning column (32), the middle of the inner side end of the conical head (4) extends outwards to form a mounting column (41), and the mounting columns (41) are mutually matched and inserted in the conical head mounting hole (31).

6. The locking structure of the bit of the hydraulic pipe machining tool of claim 1, wherein: an annular limiting groove (42) is formed in the outer ring surface of the conical head (4) corresponding to the jacking screw (5), and the inner side ends of the jacking screws (5) are mutually matched and abutted in the annular limiting groove (42).