CN111251244A

CN111251244A - Threaded sleeve embedding tool and method

Info

Publication number: CN111251244A
Application number: CN202010112870.3A
Authority: CN
Inventors: 魏敏; 林灿; 张云涛; 曹柯; 郭润; 丁艾晨; 赵帅; 宋杰
Original assignee: Beijing North Vehicle Intelligent Equipment Technology Co ltd
Current assignee: Beijing North Vehicle Intelligent Equipment Technology Co ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-06-09
Anticipated expiration: 2040-02-24
Also published as: CN111251244B

Abstract

The application relates to a threaded sleeve embedding tool and a method, which are characterized by comprising an oil cylinder, a supporting sleeve and a traction device; a columnar cavity is arranged in the oil cylinder, and a piston is arranged in the cavity of the oil cylinder; the piston comprises a plug head and a plug rod, and the plug head is matched with the cavity of the oil cylinder; the plug rod penetrates through the oil cylinder; one end of the plug rod is fixedly connected with the plug head, and the other end of the plug rod extends out of the oil cylinder; an oil inlet is formed in the side wall of the other end, close to the plug rod, of the oil cylinder, and the oil inlet penetrates through the side wall of the oil cylinder; the traction device is fixedly arranged at the other end of the plug rod, and the central axis of the traction device is parallel to the central axis of the plug rod; one side of the traction device, which is far away from the oil cylinder, is provided with a connecting thread, and the connecting thread is suitable for being screwed with the thread sleeve; the supporting sleeve is sleeved on the traction device and slides along the length direction of the plug rod, so that the oil cylinder pushes the supporting sleeve. The installation is convenient, and the hidden trouble of damage to the box body when the threaded sleeve is pressed in is eliminated.

Description

Threaded sleeve embedding tool and method

Technical Field

The disclosure relates to the field of hydraulic press fitting, in particular to a threaded sleeve embedding tool and method.

Background

The steel threaded sleeve is used in the fields of military industry, aviation, aerospace, weapons and the like before the 20 th century and the 80 th century, the countries of the UK, Germany, America, Japan and the like are listed as national standards later, and the weapon industry 617 factory has made industrial standards and is widely applied to weapon systems. Because the steel threaded sleeve solves the problems of insufficient thread strength of the aluminum box body and improvement of repeated disassembly and assembly performance, the steel threaded sleeve is widely applied to civil industries such as machinery, chemical engineering, instruments, automobiles, metallurgical mines, buildings, power machinery, engines, diesel engines and other industries.

The traditional screw sleeve embedding tool needs to manually rotate a threaded pull rod, and has the problems that an operator needs to simultaneously apply force by using two wrenches or levers, the moment is large in the final pressing stage (about 100-300N.m according to different thread diameters), the balance is difficult to master in the operation process, and once the unbalance condition occurs, the stop ring of the screw sleeve and the surface of a box body are protruded or sunken.

Disclosure of Invention

In view of this, the present disclosure provides a thread bush embedding tool, which is convenient to install and eliminates the hidden danger of damage to a box body when the thread bush is pressed in.

According to one aspect of the disclosure, a threaded sleeve embedding tool is provided, which comprises an oil cylinder, a supporting sleeve and a traction device;

a columnar cavity is arranged in the oil cylinder, and a piston is arranged in the cavity of the oil cylinder;

the piston comprises a plug head and a plug rod, and the plug head is matched with the oil cylinder cavity;

the plug rod penetrates through the oil cylinder;

one end of the plug rod is fixedly connected with the plug head, and the other end of the plug rod extends out of the oil cylinder;

an oil inlet is formed in the side wall of the other end, close to the plug rod, of the oil cylinder, and the oil inlet penetrates through the side wall of the oil cylinder;

the traction device is fixedly arranged at the other end of the plug rod, and the central axis of the traction device is parallel to the central axis of the plug rod;

one side of the traction device, which is far away from the oil cylinder, is provided with a connecting thread, and the connecting thread is suitable for being screwed with a thread sleeve;

the supporting sleeve is sleeved on the traction device and slides along the length direction of the plug rod, so that the oil cylinder pushes the supporting sleeve.

In a possible implementation manner, a guide sleeve is arranged in a cavity of the oil cylinder, and the guide sleeve is sleeved outside and attached to the side wall of the plug rod; and is

The outer side wall of the guide sleeve is attached to the inner side wall of the oil cylinder;

the guide sleeve is arranged close to the other end of the plug rod, the oil inlet is arranged close to the guide sleeve, and the oil inlet is arranged at the other end, far away from the plug rod, of the guide sleeve;

an outer sealing groove is formed in the outer side wall of the guide sleeve, and the outer sealing groove is formed around the circumferential direction of the outer side wall of the guide sleeve by taking the central axis of the plug rod as an axis;

an outer sealing ring is fixedly arranged on the outer sealing groove and is attached to the inner side wall of the oil cylinder cavity;

the side wall of the guide sleeve, which is attached to the plug rod, is the inner side wall of the guide sleeve, an inner sealing groove is formed in the inner side wall of the guide sleeve, and the inner sealing groove is formed around the circumferential direction of the inner side wall of the guide sleeve by taking the central axis of the plug rod as an axis;

an inner sealing ring is fixedly mounted on the inner sealing groove, and the inner sealing ring is attached to the side wall of the plug rod.

In one possible implementation, the cylinder includes a cylinder body and a gland;

the cylindrical cavity in the cylinder body is used as the cavity of the oil cylinder, and an opening is formed in one end, close to the extending end of the plug rod, of the cylinder body;

the gland is provided with a through hole, and the through hole penetrates through the gland along the central axis of the gland;

the gland with cylinder body opening one side closes soon, just the gland covers the opening setting.

In a possible implementation manner, a boss is arranged at one end of the gland, which is far away from the guide sleeve, the boss is annular, and the plug rod penetrates through an inner hole of the boss;

the boss and the gland are integrally formed.

In a possible implementation manner, a blind hole is formed in one end, away from the plug head, of the plug rod, and the traction device comprises a threaded pull rod and a traction pin;

the threaded pull rod is sleeved on the side wall of the blind hole, and the traction pin penetrates through the side wall of the threaded pull rod and the side wall of the plug rod;

the connecting thread is arranged on one side of the threaded pull rod, which is far away from the traction pin.

In a possible implementation manner, the supporting sleeve is sleeved on the side wall of the traction device;

an opening is formed in one end, close to the oil cylinder, of the support sleeve, and a protruding eave is arranged on the outer side wall of one side, close to the opening, of the support sleeve;

the eave is arranged in parallel with the end face of one end of the opening of the support sleeve;

the supporting sleeve is far away from one end of the oil cylinder, a through hole is formed in the end, provided with the connecting thread, of the supporting sleeve, and the through hole is formed in one side, provided with the connecting thread, of the traction device in a penetrating mode.

In a possible implementation manner, the traction device further comprises a gasket, wherein the gasket is provided with a sheet hole, and one end of the connecting thread of the traction device penetrates through the gasket;

the gasket is suitable for being placed between the embedding hole of the threaded sleeve and the traction device.

In a possible implementation manner, an orifice of the oil inlet is circular, and a value range of a ratio Ω of a diameter of the oil inlet to a length of the oil cylinder is as follows:

according to another aspect of the present disclosure, there is provided a thread bushing embedding method for embedding a thread bushing using the thread bushing embedding tool according to any one of claims 1 to 8, including the steps of:

screwing the threaded sleeve into the box body until the distance between one end of the threaded sleeve and the box body is a first preset distance;

screwing a traction device in the thread bush embedding tool with the thread bush;

communicating an oil filling pipe with an oil inlet, injecting an oil source into the oil cylinder from the oil inlet through the oil filling pipe, increasing the pressure of an inner cavity of the oil cylinder, controlling the oil cylinder to move downwards along the piston under the action of the pressure of the inner cavity so as to push a support sleeve in the thread bush embedding tool, and pressing the support sleeve into the thread bush;

and the piston in the threaded sleeve embedding tool is fixedly connected with the traction device and is in a relatively static state under the traction of the traction device.

In a possible implementation manner, a value range of the first preset distance is as follows: greater than or equal to 1mm, or less than or equal to 2 mm.

This disclosed embodiment threaded bush inlays frock only needs to make the removal of hydro-cylinder can the thread bush of impressing through pouring into the oil source, and is concrete, with threaded bush screw in box, the frock is inlayed to this threaded bush when the terminal surface is first preset distance apart from the box, when using this threaded bush to inlay the frock, earlier be connected the cock stem other end and the draw gear of piston, the oil inlet is connected with the oil source, with the oil source pressure boost, pressure is piston and hydro-cylinder emergence relative motion, because the piston is drawn by draw gear and is relative static, so the hydro-cylinder produces decurrent removal, the hydro-cylinder promotes supports the cover, the threaded bush of impressing, make threaded bush and box face parallel and level set up. The connecting structure of the oil cylinder and the piston is similar to that of a hydraulic cylinder, so that the sealing performance of the oil cylinder can be guaranteed to the maximum extent, and stable pressurization can be guaranteed to the maximum extent when an oil source is injected into the oil cylinder. The oil inlet is close to the other end of the plug rod, so that the moving stroke of the oil cylinder can be increased, and the condition that the thread bush is not installed completely due to insufficient moving stroke of the oil cylinder is avoided. One side of the connecting thread of the traction device is screwed with the thread bush, and the other side of the traction device is fixedly connected with the other end of the plug rod of the piston, so that the thread bush embedding tool is stably and fixedly connected with the thread bush. Wherein, draw gear's axis is parallel with the gag lever post axis of piston and even the coincidence can effectually guarantee can not make the thread bush take place the skew when impressing the thread bush. The supporting sleeve is sleeved on the traction device as a component directly pressed into the threaded sleeve, the supporting sleeve and the traction device are further ensured to be on the same axis, the supporting sleeve and the threaded sleeve are enabled to be sleeved on the same axis, and the threaded sleeve can be further ensured to be vertically pressed into a workpiece (box body). Therefore, the threaded sleeve embedding tool disclosed by the embodiment of the disclosure not only adopts a hydraulic power mode to replace manual force, so that the labor intensity and the assembly time are saved, but also the hydraulic oil cylinder is pressed in an axial force mode, the pressing stage does not need to rotate, and the possibility that the threaded sleeve is sprained due to the fact that the threaded pull rod needs to be screwed and rotated is changed. Meanwhile, the installation is convenient, and the hidden trouble of damage to the box body when the threaded sleeve is pressed in is eliminated.

Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

Fig. 1 shows a schematic structural diagram of a threaded sleeve embedding tool according to an embodiment of the disclosure.

Detailed Description

Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

It will be understood, however, that the terms "central," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing or simplifying the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

Fig. 1 shows a schematic structural diagram of a thread bushing embedding tool according to an embodiment of the disclosure. As shown in fig. 1, the thread bushing embedding tool comprises: cylinder 100, support sleeve 200 and traction device 300. Wherein, a cylindrical cavity is arranged in the oil cylinder 100, and a piston 110 is arranged in the cavity of the oil cylinder 100. The piston 110 includes a plug and a plug rod, both of which are rod-shaped, the plug is located inside the cavity of the oil cylinder 100, and the plug is matched with the cavity of the oil cylinder 100, so that the side wall of the plug is attached to the inner side wall of the oil cylinder 100, and the plug can slide along the inside of the cavity of the oil cylinder 100. The plunger rod penetrates through the oil cylinder 100, wherein one end of the plunger rod is fixedly connected with the plunger head, and the other end of the plunger rod extends out of the oil cylinder 100. Wherein, an oil inlet is arranged on the side wall of the other end of the oil cylinder 100 close to the plug rod, and the oil inlet penetrates through the side wall of the oil cylinder 100. The pulling device 300 is fixedly installed at the other end of the stopper rod, and the central axis of the pulling device 300 is parallel to (or overlapped with) the central axis of the stopper rod, so that the pulling device 300 is arranged along the length direction of the stopper rod. One side of the traction device 300 away from the oil cylinder 100 is provided with a connecting thread, and the connecting thread is used for being screwed with a threaded sleeve, so that the threaded sleeve embedding tool and the threaded sleeve are fixedly installed in the embodiment of the disclosure. The support sleeve 200 is sleeved on the traction device 300, and the support sleeve 200 can slide along the length direction of the plug rod, so that the oil cylinder 100 pushes the support sleeve 200, and the support sleeve 200 is pressed into the threaded sleeve to complete the installation of the threaded sleeve.

This disclosed embodiment threaded bush inlays frock only needs make the removal of hydro-cylinder 100 can the thread bush of impressing through pouring into the oil source, and is concrete, screw bush screw in box, the frock is inlayed to this threaded bush when the terminal surface is first preset distance apart from the box, when using this threaded bush to inlay the frock, earlier be connected with draw gear 300 with the cock stem other end of piston 110, the oil inlet is connected with the oil source, with the oil source pressure boost, pressure is piston 110 and hydro-cylinder 100 and takes place relative motion, because piston 110 is drawn by draw gear 300 and is static relatively, so hydro-cylinder 100 produces the downward removal, hydro-cylinder 100 promotes to support cover 200, the thread bush of impressing, make thread bush and box face parallel and level set up. The connection structure of the cylinder 100 and the piston 110 can maximally ensure the sealing performance of the cylinder 100, similar to the structure of a hydraulic cylinder, and can maximally ensure stable pressurization when an oil source is injected into the cylinder 100. The oil inlet is arranged close to the other end of the plug rod, so that the moving stroke of the oil cylinder 100 can be increased, and the condition that the threaded sleeve is not completely installed due to insufficient moving stroke of the oil cylinder 100 can be avoided. One side of the connecting thread of the traction device 300 is screwed with the thread bush, and the other side of the traction device 300 is fixedly connected with the other end of the plug rod of the piston 110, so that the thread bush embedding tool in the embodiment disclosed herein is stably and fixedly connected with the thread bush. The central axis of the traction device 300 is parallel to or even coincident with the central axis of the plug rod of the piston 110, so that the threaded sleeve is prevented from deflecting when being pressed in. The support sleeve 200 is sleeved on the traction device 300 as a member directly pressed into the threaded sleeve, so that the support sleeve 200 and the traction device 300 are further ensured to be on the same axis, the support sleeve 200 and the threaded sleeve are sleeved on the same axis, and the threaded sleeve can be further ensured to be vertically pressed into a workpiece (box). Therefore, the threaded sleeve embedding tool disclosed by the embodiment of the disclosure not only adopts a hydraulic power mode to replace manual force, so that the labor intensity and the assembly time are saved, but also the hydraulic oil cylinder 100 adopts an axial force mode for pressing, the rotation is not needed in the pressing stage, and the possibility that the threaded sleeve is sprained due to the fact that the threaded pull rod 320 needs to be screwed and rotated is changed. Meanwhile, the installation is convenient, and the hidden trouble of damage to the box body when the threaded sleeve is pressed in is eliminated.

Here, it should be noted that the piston 110 is integrally formed, and the stopper rod and the stopper head are coaxially disposed. The lateral wall of the chock plug is provided with a groove which is formed around the circumferential direction of the chock plug by taking the central axis of the chock plug as an axis, the groove is internally sleeved with a sealing ring, and the sealing ring is tightly attached to the inner lateral wall of the oil cylinder 100.

Here, it should also be noted that more than two grooves are provided, the number of sealing rings matching the number of grooves. Further, in one possible implementation, there are four grooves, and two of the grooves are disposed as a first groove group near the stem, and the remaining two grooves are disposed most distant from the stem than a second groove group. Further, in a possible implementation manner, a concave ring which is formed around the circumferential direction of the plug head by taking the central axis of the plug head as an axis is formed between the first groove group and the second groove group.

Furthermore, in a possible implementation manner, the width of the groove of the first groove group close to the stopper rod is greater than the width of the groove of the first groove group far away from the stopper rod, the shape and size of the groove of the first groove group close to the stopper rod are the same as those of the groove of the second groove group far away from the stopper rod, and the shape and size of the groove of the first groove group far away from the stopper rod are the same as those of the groove of the second groove group close to the stopper rod. Therefore, the piston 110 can be tightly attached to the oil cylinder 100, so that when the oil source is injected, the oil source cannot flow into the cavity of the oil cylinder 100 far away from the traction device 300 through a gap between the piston 110 and the oil cylinder 100, and the stable pressurization of the oil cylinder 100 is ensured.

Further, in a possible implementation manner, the cylinder 100 is cylindrical, and the cavity of the cylinder 100 is a circular cavity coaxially arranged with the outer wall of the cylinder 100. And the plug is in a cylindrical shape matched with the cavity of the oil cylinder 100.

Further, in a possible implementation manner, the piston 110 is a piston 110 in a hydro-pneumatic spring, specifically, a cylindrical cavity is opened inside the piston 110, and an opening is provided at an end of the piston 110 away from the traction device 300.

In a possible implementation manner, a guide sleeve 130 is arranged in the cavity of the oil cylinder 100, the guide sleeve 130 is sleeved outside the side wall of the stopper rod and attached to the side wall of the stopper rod, and the guide sleeve 130 is attached to the inner side wall of the oil cylinder 100. The guide sleeve 130 is disposed near the other end of the plunger rod, the oil inlet is disposed near the guide sleeve 130, and the oil inlet is disposed at a side of the guide sleeve 130 away from the other end of the plunger rod. The side wall of the guide sleeve 130, which is attached to the oil cylinder 100, serves as the outer side wall of the guide sleeve 130, an outer sealing groove is formed in the outer side wall of the guide sleeve 130, and the outer sealing groove is formed around the outer side wall of the guide sleeve 130 by taking the central axis of the plug rod as an axis. An outer sealing ring is fixedly installed on the outer sealing groove, the outer sealing ring is attached to the inner wall of the cavity of the oil cylinder 100, and the outer sealing ring is matched with the outer sealing groove. The side wall that uide bushing 130 and gag lever post laminating is as the inside wall of uide bushing 130, and the opening has interior seal groove on the inside wall of uide bushing 130, and the circumference of interior seal groove around the inside wall of uide bushing 130 uses the axis of gag lever post as the axle is seted up. An inner sealing ring is fixedly mounted on the inner sealing groove, the inner sealing ring is attached to the side wall of the plug rod, and the inner sealing ring is matched with the inner sealing groove.

Therefore, the guide sleeve 130 plays a role in guiding the linear reciprocating motion of the piston 110, and the guide sleeve 130 is arranged at the lower end of the oil inlet to play a role in sealing, so that the liquid injected into the oil cylinder 100 is prevented from leaking from a gap, and the pressure inside the cavity of the oil cylinder 100 is ensured. Further, in a possible implementation manner, the oil cylinder 100 includes a wide-mouth end and a small-mouth end, the wide-mouth end and the small-mouth end are in a cylindrical shape coaxially arranged, the size of the end face of the wide-mouth end is larger than that of the end face of the small-mouth end, a chamfer is arranged at the joint of the wide-mouth end and the small-mouth end, and the wide-mouth end and the small-mouth end are integrally formed. The wide-mouth end and the guide sleeve 130 are arranged on the same side, and the shape of the inner cavity of the oil cylinder 100 is the same as that of the outer wall of the oil cylinder 100.

The guide sleeve 130 is sleeved on the inner side wall of the small opening end, and the guide sleeve 130 is arranged adjacent to the wide opening end. The uide bushing 130 is equipped with the joint end that stretches out the osculum end, and joint end butt is in the chamfer department that wide-mouth end and osculum end are connected for uide bushing 130 can not be because the effect of pressure moves to the osculum end from the wide-mouth end.

In one possible implementation, the cylinder 100 includes a cylinder body and a gland 140, a cylindrical cavity is provided in the cylinder body as the cavity of the cylinder 100, and an opening is provided at one end of the cylinder body near the other end of the plug rod. The gland 140 is provided with a through hole, the through hole penetrates through the gland 140 along the central axis of the gland 140, the gland 140 is screwed with one side of the opening of the cylinder body, and the gland 140 covers the opening. Thereby. The installation of the piston 110 and the cylinder 100 can be facilitated.

Further, in a possible implementation, the side of the pressing cover 140 away from the cylinder opening abuts against the clamping end of the guide sleeve 130. The one end that uide bushing 130 was kept away from to gland 140 is equipped with the boss, and the boss is cyclic annular, and the axis of boss sets up with the axis of the cock stem of piston 110 is coaxial, and the internal diameter of boss is more than or equal to the diameter of the cock stem of piston 110, and the cock stem of piston 110 runs through the hole setting of boss, and boss and gland 140 integrated into one piece. Therefore, the pressing cover 140 can be screwed into the cylinder body conveniently, the boss is equivalent to a handle, and an operator can screw the pressing cover 140 into the cylinder body through rotating the boss.

In a possible implementation manner, a blind hole is opened at one end of the plug rod away from the plug head, the traction device 300 includes a threaded pull rod 320 and a traction pin 310, the threaded pull rod 320 is sleeved with a side wall of the blind hole of the plug rod, the traction pin 310 is disposed through a side wall of the threaded pull rod 320 and a side wall of the plug rod, and the connection thread is opened at one side of the threaded pull rod 320 away from the traction pin 310.

In a possible implementation manner, the support sleeve 200 is sleeved on the side wall of the traction device 300, wherein an opening is formed in one side of the support sleeve 200 close to the oil cylinder 100, a convex eave is formed on the outer side wall of one side of the support sleeve 200 close to the opening, and the eave is flush with the end surface of one end of the opening of the support sleeve 200. One end of the support sleeve 200, which is far away from the oil cylinder 100, is provided with a through hole, and one side of the traction device 300, which is provided with a connecting thread, is arranged through the through hole.

Furthermore, in a possible implementation manner, the threaded pull rod 320 includes a first rod, a second rod, and a third rod, the first rod is fixedly connected to an end surface of the second rod, the third rod is fixedly connected to an end surface of the second end that is not connected to the first end, and the first rod, the second rod, and the third rod are coaxially disposed. The size of the end surface of the second rod is larger than that of the end surface of the first rod, and the size of the end surface of the third rod is smaller than that of the end surface of the second rod (the size of the end surface of the first rod is larger than that of the end surface of the third rod). One side of the first rod, which is far away from the end face of the second rod, is provided with a first pin hole as a penetrating part of the traction pin 310, and the size and the shape of the first rod are matched with those of the blind hole. The side wall of one side of the second rod, which is adjacent to the first rod, is provided with a convex ring, the convex ring is arranged around the circumference of the second rod by taking the central axis of the second rod as an axis, and the end surface of the convex ring, which is adjacent to the first rod, is flush with the end surface of the second rod, which is adjacent to the first rod. The connecting screw thread is provided on the side wall of the third rod. The first rod and the second rod are integrally formed, and the third rod and the second rod can be connected in a riveting mode and a welding mode.

Further, in a possible implementation manner, a first opening is provided at a bottom surface of the plug rod (a side of the plug rod away from the plug head) of the piston 110, the first opening is provided through a side wall of the plug rod, and the first opening is matched with the pulling pin 310, and the first opening also penetrates through the blind hole. The bottom surface of the plug rod close to the first opening is provided with a second pin hole (the bottom surface of the first opening is the inner wall of the first opening close to the plug head), the second pin hole is a long round hole, the second pin hole is formed along the circumferential direction of the outer wall of the plug rod, the second pin hole penetrates through the side wall of one side of the blind hole of the plug rod and is communicated with the first opening, and the second pin hole is matched with the traction pin 310. When the piston 110, the pulling pin 310 and the threaded pull rod 320 are installed, the pulling pin 310 is firstly inserted into the first pin hole, so that the pulling pin 310 is installed on the threaded pull rod 320, then the pulling pin 310 is placed into the second pin hole, so that the threaded pull rod 320 is sleeved inside the blind hole of the plug rod, and finally the pulling pin 310 is rotated along the length direction of the second pin hole, so that the pulling pin 310 can be locked on the plug rod.

Further, in a possible implementation manner, the supporting sleeve 200 is cylindrical, and one side of the supporting sleeve 200 away from the opening of the supporting sleeve 200 is chamfered. The end of the support sleeve 200 provided with the chamfer is provided with a press-in platform. The platform of impressing is the column, and the platform of impressing sets up with supporting cover 200 is coaxial, and the third pole runs through the platform of impressing and closes with the thread bush soon. The size of the terminal surface of the platform of impressing is less than or equal to the size that the thread bush is close to the terminal surface of hydro-cylinder 100, wherein, when the terminal surface of the platform of impressing is less than the size that the thread bush is close to the terminal surface of hydro-cylinder 100, the terminal surface of the platform of impressing can not be undersize, the size of the terminal surface of the platform of impressing and the proportion of the size that the thread bush is close to the terminal surface of hydro-: greater than or equal to nine tenths, or less than or equal to eight tenths, the optimal value of which is nine tenths. Thereby, the screw sleeve can be further pressed into the box body along the axial direction.

Further, in one possible implementation, the opening of the support sleeve 200 is sized larger than the length of the traction pin 310 to enable the traction pin 310 to be located inside the support sleeve 200. Therefore, the support sleeve 200 can move freely along the length direction of the piston rod of the piston 110, and the stroke of the support sleeve 200 is increased.

In a possible implementation manner, the gasket 600 is further included, the gasket 600 is disposed between the threaded sleeve and the traction device 300, and the gasket 600 is sleeved at the end of the traction device 300 where the connecting thread is disposed (that is, a sheet hole penetrating through an end surface of the gasket 600 is disposed on the gasket 600, and the size of the sheet hole is greater than or equal to that of the end of the traction device 300 where the connecting thread is disposed, that is, the size of the sheet hole is greater than or equal to that of the third rod end surface). Wherein, the end surface of the gasket 600 adjacent to the threaded sleeve is attached to one side end surface of the threaded sleeve. Further, in one possible implementation, the shim 600 is disposed over an end face of the threaded sleeve. Therefore, the support sleeve 200 can be prevented from directly contacting the threaded sleeve, the pressing can be more stable, and the impact force of the support sleeve 200 can be applied to the gasket 600.

Further, in a possible implementation manner, the gasket 600 is cylindrical, and an end surface of the gasket 600 near the support sleeve 200 is chamfered, and the size of the chamfered end surface is larger than that of the end surface of the press-in table facing the gasket 600.

In a possible implementation manner, the orifice of the oil inlet is circular, and the value range of the ratio Ω of the diameter of the oil inlet to the length of the oil cylinder 100 is as follows:

specifically, the value that the length of hydro-cylinder 100 can be 190mm, and then the value range of the diameter of oil inlet is: greater than or equal to 5mm, or less than or equal to 10mm, and the value of optimum oil inlet is 6 mm.

In a possible implementation manner, the end cap 500 is further included, the end cap 500 is in a cylindrical shape, and a cavity is formed in the end cap 500 and an opening is formed at one end. An inner thread is formed on the inner wall of the cavity in the end cover 500, an outer thread is formed on one side, away from the traction device 300, of the oil cylinder 100, and the inner thread of the end cover 500 is matched with the outer thread of the oil cylinder 100, so that the end cover 500 and the oil cylinder 100 are screwed together. The end surface of the end cover 500 not opened with the opening is opened with an auxiliary hole, and the auxiliary hole penetrates through the end surface of the end cover 500 not opened with the opening.

Based on the threaded sleeve embedding tool, the disclosure also provides a threaded sleeve embedding method. The thread bush inlaying method provided by the embodiment of the disclosure uses the thread bush inlaying tool to inlay the thread bush, and comprises the following steps:

firstly, the threaded sleeve is screwed into the box body until the distance between one end of the threaded sleeve and the box body is a first preset distance. And then, screwing the traction device 300 in the thread bush embedding tool with the thread bush, wherein in more detail, the thread bush embedding tool is screwed with the thread bush through a connecting thread in the traction device 300. And then, communicating the oil injection pipe with the oil inlet, injecting an oil source into the oil cylinder 100 from the oil inlet through the oil injection pipe to increase the pressure of the inner cavity of the oil cylinder 100, controlling the oil cylinder 100 to move downwards along the piston 110 under the action of the pressure of the inner cavity to push the support sleeve 200 in the thread sleeve embedding tool, and completely pressing the thread sleeve into the box body through the support sleeve 200. The piston 110 in the threaded sleeve embedding tool is fixedly connected with the traction device 300 and is in a relatively static state under the traction of the traction device 300.

The step of mounting the thread bush mounting tool on the thread bush is as follows, firstly, the traction device 300 is fixedly mounted on the plug rod of the piston 110 (i.e. the first rod of the thread pull rod 320 is sleeved in the blind hole of the plug rod, and the traction pin 310 penetrates through the first pin hole of the first rod and the second pin hole of the plug rod). Next, the supporting sleeve 200 is sleeved on the traction device 300, and the connecting threaded end of the traction device 300 extends out of the supporting sleeve 200 (i.e., the supporting sleeve 200 is sleeved with a third rod, and the third rod passes through the supporting sleeve 200 through a through hole on the supporting sleeve 200). Next, the connecting threaded end of the pulling device 300 is threaded onto the threaded sleeve (i.e., the third rod of the threaded pull rod 320 is threaded onto the threaded sleeve). And the threaded sleeve embedding tool is installed.

When the threaded sleeve is inlaid by adopting the threaded sleeve inlaying method, the requirements on the sheet surface degree of the box body are met through experiments, and the success rate of one-time pressing is increased from less than 50% of the success rate of a pressing tool before use to more than 98%. The assembly time is greatly shortened, the tool is installed and injected with an oil source, the time of about five minutes is needed for pressing the threaded sleeve by using the original pressing tool, the reworking time is more than the pressing time when the pressing is unsuccessful, the time for pressing the threaded sleeve by using the threaded sleeve embedding tool is less than two minutes, and the quality cost and the labor cost are both greatly reduced. In conclusion, the threaded sleeve embedding method disclosed by the embodiment of the disclosure improves the qualification rate of products, reduces the assembling time, reduces the quality cost and the labor cost, and ensures the integrity of the sealing surface of the box body.

In a possible implementation manner, the oil filling nozzle 400 is further included, and the oil filling nozzle 400 is communicated with the oil inlet. Further, in one possible implementation, the oil nipple 400 is welded to the oil cylinder 100. Thereby, the cavity of the oil cylinder 100 can be communicated with the oil filling pipe more stably.

In a possible implementation manner, the oil injection pipe injects an oil source into the oil cylinder 100 from an oil inlet, and the value range of the pressure of the oil source at this time is as follows: 15MPa to 20 MPa.

In a possible implementation manner, the value range of the first preset distance is as follows: greater than or equal to 1mm, or less than or equal to 2 mm. Further, in a possible implementation, the first predetermined distance is 2 mm.

In conclusion, the threaded sleeve embedding tool and the threaded sleeve embedding method are stable in the using process and good in operating performance.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A threaded sleeve embedding tool is characterized by comprising an oil cylinder, a supporting sleeve and a traction device;

the plug rod penetrates through the oil cylinder;

2. The threaded sleeve embedding tool according to claim 1, wherein a guide sleeve is arranged in a cavity of the oil cylinder, and the guide sleeve is sleeved outside and attached to the side wall of the plug rod; and is

3. The threaded sleeve embedding tool according to claim 1, wherein the oil cylinder comprises a cylinder body and a gland;

4. The threaded sleeve embedding tool according to claim 3, wherein a boss is arranged at one end of the gland, which is far away from the guide sleeve, the boss is annular, and the plug rod penetrates through an inner hole of the boss;

the boss and the gland are integrally formed.

5. The threaded sleeve embedding tool according to claim 1, wherein a blind hole is formed in one end, away from the plug head, of the plug rod, and the traction device comprises a threaded pull rod and a traction pin;

6. The threaded sleeve embedding tool according to claim 1, wherein the support sleeve is sleeved on a side wall of the traction device;

7. The threaded sleeve embedding tool according to claim 1, further comprising a gasket, wherein the gasket is provided with a sheet hole, and one end of the connecting thread of the traction device penetrates through the gasket;

8. The threaded sleeve embedding tool according to claim 1, wherein an orifice of the oil inlet is circular, and the diameter of the oil inlet and the length of the oil cylinder are in a value range of a proportion omega:

9. a thread bushing insert method, characterized in that the thread bushing insert tool of any one of claims 1 to 8 is used for the thread bushing insert, comprising the steps of:

10. The thread bushing setting method according to claim 7, wherein the first predetermined distance has a value range of: greater than or equal to 1mm, or less than or equal to 2 mm.