CN217873933U

CN217873933U - Shock absorber pipe orifice structure and pipe expanding forming device thereof

Info

Publication number: CN217873933U
Application number: CN202222200566.1U
Authority: CN
Inventors: 张亚军; 刘强辉; 林志毅
Original assignee: Xiamen Development Shock Absorber Co ltd
Current assignee: Xiamen Development Shock Absorber Co ltd
Priority date: 2022-08-20
Filing date: 2022-08-20
Publication date: 2022-11-22
Anticipated expiration: 2032-08-20

Abstract

The application relates to the technical field of cold rolling forming, and provides a shock absorber pipe orifice structure and a pipe expanding forming device thereof. The pipe fitting comprises a pipe fitting body, wherein a linear type through pipe orifice is formed in the pipe fitting body, and one end, located on the pipe fitting body, of the pipe orifice is of a conical structure. Based on this, there is not the clearance of broad between this application pipe fitting body and the opponent's piece, and water liquid is difficult to permeate to the mouth of pipe fitting body in, and whole practicality is strong, has great market spreading value. In addition, still provide a bumper shock absorber pipe expanding forming device.

Description

Shock absorber pipe orifice structure and pipe expanding forming device thereof

Technical Field

The application relates to the technical field of cold rolling forming, in particular to a shock absorber pipe orifice structure and a pipe expanding forming device thereof.

Background

Shock absorbers are used to suppress shock generated when springs rebound after absorbing shock and impact from the road surface, and are widely used to improve the ride comfort of bicycles and electric bicycles. The shock absorber sleeve needs to be directly connected with the shock absorbing spring, so that the hole diameter of the end part of the shock absorber sleeve needs to be changed in order to stably install the shock absorber, and the existing process is to plastically deform the shock absorber sleeve in a stamping mode.

The end part of the traditional damper pipe orifice generally forms a double-step structure after being punched, in the subsequent further processing process, an opposite hand piece for clamping the damper is generally abutted against the step surface of the pipe orifice with the smaller diameter, and a certain gap is formed between the step surface with the larger diameter and the opposite hand piece. In view of the above-mentioned related arts, the inventor believes that a certain gap is formed between the step surface with a larger diameter and the counterpart element, which makes water more likely to enter the orifice of the shock absorber tube, resulting in too large internal pressure of the shock absorber and deterioration of the oil. Therefore, how to design a shock absorber structure capable of effectively preventing water from entering the pipe orifice difficultly in the processing process is a problem to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that current damper pipe mouth double step structure caused water liquid to get into easily, the purpose of this application provides a damper pipe mouth structure and expand a tub forming device thereof.

In a first aspect, the present application provides a shock absorber tube orifice structure that adopts the following technical scheme:

the utility model provides a shock absorber pipe orifice structure, contains the pipe fitting body, has seted up the mouth of pipe that the linear type link up in the pipe fitting body, and the one end that the mouth of pipe is located the pipe fitting body is the toper structure.

Through adopting above-mentioned technical scheme, through the tip with the pipe fitting body by the tapered structure of two ladder structural design, when outside opponent's piece centre gripping pipe fitting body, its one end can directly the butt install in the toper mouth of pipe for there is not the clearance of broad between pipe fitting body and the opponent's piece, water liquid is difficult to permeate to the mouth of pipe fitting body.

In a second aspect, the application provides a damper pipe expanding forming device which adopts the following technical scheme:

the utility model provides a bumper shock absorber expander forming device, contains the punching press seat and as above a bumper shock absorber mouth of pipe structure, the punching press seat contains mould and lower mould, goes up the mould and is located the lower mould directly over, is provided with a set of guide post that is parallel to each other on the lower mould, goes up the mould activity and cup joints on the guide post and slides from top to bottom along the guide post, and the pipe fitting body is installed on the lower mould, and the mouth of pipe is towards last mould perpendicularly.

Through adopting above-mentioned technical scheme, the guide post is convenient for go up the mould and is slided from top to bottom, and realizes the orificial aperture expansion of this tip of pipe fitting.

Optionally, a mounting seat for mounting the pipe fitting body is arranged on the lower die, a mounting hole matched with the shape of the pipe fitting body is formed in the mounting seat, and an arc angle is arranged in the mounting hole.

Through adopting above-mentioned technical scheme, the mount pad is used for fixed spacing pipe fitting body for the mouth of pipe fitting body can parallel with last mould, and through setting up the arc angle in mounting hole department, makes the pipe fitting body be difficult to cause the fish tail at the process of getting and putting.

Optionally, a steel sleeve is arranged at a joint between the upper die and the guide post.

Through adopting above-mentioned technical scheme, be used for reducing the frictional force between last mould and the guide post through setting up the steel bushing, better realization is slided from top to bottom, improves life.

Optionally, a fixing seat is arranged right above the mounting seat on the upper die, a forming block is movably arranged at the bottom of the fixing seat, and the forming block is matched with the pipe orifice of the pipe fitting body.

By adopting the technical scheme, the forming block is matched with the pipe orifice of the pipe fitting body and is of a conical structure, and when the upper die is pressed down along the guide column, the end part of the original straight pipe orifice and the cold rolling forming conical structure are formed.

Optionally, the fixed plate has a plurality of connecting pieces towards the periphery array distribution that is located the fixed head, and on the fixed plate was worn to locate in the connecting piece activity, the piece that suppresses has all been cup jointed in the activity on a plurality of connecting pieces, and a plurality of connecting pieces are connected with the stripper jointly towards the one end of mount pad, and the piece that suppresses is located between stripper and the fixed plate.

By adopting the technical scheme, the connecting piece is used for connecting and fixing the stripper plate, when the upper die presses down along the guide post, the stripper plate contacts with the pipe fitting body in advance, the forming block is abutted to the position of the pipe orifice of the pipe fitting body from top to bottom, the opening at the end part of the pipe fitting body is processed into a conical structure by setting the pressing stroke of the upper die, the upper die slides upwards after the processing is completed, and at the moment, the stripper plate is separated from the contact with the pipe fitting body under the control of the elastic pressing piece, so that the pipe fitting body cannot generate die sticking and shaking under the action of gravity.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by designing the end part of the pipe fitting body into a tapered structure through a double-step structure, when an external opponent clamps the pipe fitting body, one end of the pipe fitting body can be directly abutted and installed in the tapered pipe orifice, so that a wider gap does not exist between the pipe fitting body and the opponent, water cannot easily permeate into the pipe orifice of the pipe fitting body, the whole practicability is high, and the market popularization value is higher;

2. the steel sleeve is used for reducing the friction force between the upper die and the guide post, so that the up-and-down sliding is better realized, and the service life is prolonged;

3. through setting up the suppress part and stripper, can effectively avoid the pipe fitting body to produce the phenomenon of sticking die or shake after cold rolling shaping.

Drawings

FIG. 1 is a schematic view of the overall structure of the present application before the expansion of the tubular body;

FIG. 2 is a schematic view of a forming block structure of the present application;

FIG. 3 is a front view of the present application;

fig. 4 is a schematic view of the overall structure of the expanded pipe fitting body according to the present application.

Description of reference numerals:

100. a pipe fitting body; 110. a pipe orifice; 200. punching a seat; 210. an upper die; 211. a fixed seat; 212. A fixing plate; 213. a fixed head; 214. a connecting member; 215. snapping a piece; 216. forming a block; 217. An externally threaded post; 220. a lower die; 221. a mounting seat; 222. mounting holes; 223. a circular arc angle; 230. A guide post; 240. steel jacket; 250. a stripper plate; 251. and (4) yielding through holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

Example 1: a shock absorber orifice structure, referring to fig. 1 and 4, comprising a tube body 100, wherein the tube body 100 is a cylindrical structure and internally provided with a linear through orifice 110. By mounting the tube main body 100 on the punch holder 200 with the spout 110 facing vertically toward the upper die 210, the forming block 216 abuts at the spout 110 by sliding the upper die 210 downward along the guide post 230. Through setting up the pre-compaction stroke of mould 210 for the round hole forms the toper structure towards the one end of mould 210, through processing conical structure with mouth of pipe 110, when outside when the hand piece centre gripping pipe fitting body 100, its one end can directly butt install in toper mouth of pipe 110, makes do not have the clearance of broad between pipe fitting body 100 and the hand piece, and water liquid is difficult to permeate to the mouth of pipe 110 of pipe fitting body 100 in, effectually avoids producing the foreign matter in the mouth of pipe 110.

Example 2: a shock absorber pipe expanding forming device, referring to fig. 1 and 4, comprises a punching seat 200 and a shock absorber pipe orifice 110 structure as described above, wherein the punching seat 200 comprises an upper die 210 and a lower die 220, the upper die 210 is positioned right above the lower die 220, a group of guide posts 230 which are parallel to each other are respectively arranged at the left side and the right side of the lower die 220, and the upper die 210 is movably sleeved on the guide posts 230. The connecting position between the upper die 210 and the guide post 230 is provided with a steel sleeve 240, the upper die 210 can slide up and down along the guide post 230 through the steel sleeve 240, and the steel sleeve 240 is used for reducing the friction force between the upper die 210 and the guide post 230, so that the up-and-down sliding is better realized.

Specifically, a mounting seat 221 is provided on the lower die 220, a mounting hole 222 is provided in the mounting seat 221, and the pipe fitting body 100 is mounted in the mounting hole 222. When the pipe fitting body 100 is installed, the pipe fitting body 100 is vertically installed in the installation hole 222 so that the pipe orifice 110 vertically faces the upper die 210, and in order to reduce scratches caused by the fact that the pipe fitting body 100 is installed in the installation hole 222, the installation hole 222 is provided with a rounded corner, and polishing treatment is performed. The upper mold 210 is provided with a fixing seat 211 located right above the mounting seat 221, the fixing seat 211 includes a fixing plate 212 and a fixing head 213, the fixing head 213 penetrates through the fixing plate 212 to form an integral vertical structure, and one end of the fixing head 213 is vertically connected with the bottom center of the upper mold 210. One end of the fixed head 213 facing the mounting seat 221 is movably provided with a forming block 216, and the forming block 216 is matched with the pipe orifice 110 of the pipe fitting body 100 on the mounting seat 221. When the shaping block 216 is in a tapered configuration, the nozzle 110 is also tapered when the shaping block 216 is pressed down against the nozzle 110.

Referring to fig. 2, the forming block 216 is provided with an external threaded post 217, and correspondingly the fixing head 213 is provided with an internal threaded hole, and the forming block 216 is fixed to the fixing head 213 by a screw thread.

Referring to fig. 1 and 3, the fixing plate 212 has a plurality of connectors 214 distributed toward the outer circumference of the fixing head 213. In the embodiment of the present application, the connecting members 214 are hexagon bolts, the connecting members 214 are movably disposed on the fixing plate 212, and each connecting member 214 is sleeved with a spring 215. In this application embodiment, suppress piece 215 and adopt expanding spring, the common threaded connection of the one end of a plurality of connecting pieces 214 orientation mount pad 221 has stripper 250, and suppress piece 215 and be located between stripper 250 and fixed plate 212, and the center department of stripper 250 has seted up and has stepped down through-hole 251, and when going up mould 210 and driving forming block 216 and pushing down, forming block 216 wears to establish in the through-hole 251 that steps down.

Specifically, in order to make the upper die 210 press down, the discharge material first contacts the pipe fitting body 100 to realize the function of elastic discharge, and the inner diameter of the relief through hole 251 is larger than the inner diameter of the pipe orifice 110 of the pipe fitting body 100. When the upper die 210 is pressed down along the guide posts 230, the stripper plate 250 contacts the tube body 100 in advance to perform pre-pressing, and the forming block 216 abuts against the spout 110 of the tube body 100 from top to bottom. By setting the downward stroke of the upper die 210, the opening at the end of the pipe fitting body 100 is processed into a tapered structure, the upper die 210 slides upward after the processing is completed, and at this time, the stripper plate 250 is separated from contact with the pipe fitting body 100 under the control of the elastic pressing piece 215 of the pipe fitting body 100, so that the pipe fitting body 100 does not generate a die sticking and shaking phenomenon under the action of gravity.

The implementation principle of the embodiment of the application is as follows: when the stamping die is used, the stamping seat 200 is fixedly arranged on a corresponding stamping machine table, and the upper die 210 and the lower die 220 are fixed, so that the stamping die cannot shake. After the installation is completed, the pipe fitting body 100 is vertically installed in the installation hole 222 of the installation seat 221, so that the pipe orifice 110 faces the forming block 216 vertically and is located right below, after the pipe fitting body 100 is placed, the upper die 210 is pressed down along the guide column 230 by a certain stroke through program control, the stripper plate 250 contacts the pipe fitting body 100 in advance when the pipe fitting body is pressed down, the forming block 216 abuts against the center of the pipe orifice 110, and the pipe orifice 110 at the end part of the pipe fitting body 100 is processed into a conical structure by means of feeding of the pressing down stroke of the upper die 210. After the machining is completed, the upper die 210 continues to slide upward along the guide rods, and the stripper plate 250 is separated from the pipe body 100 under the control of the biasing member 215 of the pipe body 100, so that the machined pipe body 100 can be removed from the mounting hole 222.

The embodiments of the present invention are preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, wherein like parts are denoted by like reference numerals. Therefore: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a damper nozzle structure, contains pipe fitting body (100), has seted up the mouth of pipe (110) that the linear type link up in pipe fitting body (100), its characterized in that: the end of the pipe orifice (110) positioned on the pipe fitting body (100) is of a conical structure.

2. A shock absorber expanding and forming device comprising a punch holder (200) and a shock absorber orifice structure according to claim 1, wherein: punching press seat (200) contain last mould (210) and lower mould (220), go up mould (210) and be located lower mould (220) directly over, be provided with a set of guide post (230) that are parallel to each other on lower mould (220), go up mould (210) activity cup joint on guide post (230) and slide from top to bottom along guide post (230), pipe fitting body (100) are installed on lower mould (220), and mould (210) are gone up in mouth of pipe (110) vertical orientation.

3. The shock absorber pipe expanding molding device according to claim 2, wherein: the lower die (220) is provided with a mounting seat (221) for mounting the pipe fitting body (100), a mounting hole (222) matched with the shape of the pipe fitting body (100) is formed in the mounting seat (221), and an arc angle (223) is arranged in the mounting hole (222).

4. The shock absorber pipe expanding molding device according to claim 2, wherein: a steel sleeve (240) is arranged at the joint between the upper die (210) and the guide post (230).

5. The shock absorber pipe expanding molding device according to claim 3, wherein: a fixed seat (211) is arranged right above the mounting seat (221) of the upper die (210), a forming block (216) is movably arranged at the bottom of the fixed seat (211), and the forming block (216) is matched with the pipe orifice (110) of the pipe fitting body (100).

6. The shock absorber pipe expanding molding device according to claim 5, wherein: the fixing seat (211) comprises a fixing plate (212) and a fixing head (213), the fixing head (213) penetrates through the fixing plate (212) to form an integral vertical structure, one end of the fixing head (213) is vertically connected with the upper die (210), and the forming block (216) is connected to the fixing head (213) in a threaded mode.

7. The shock absorber pipe expanding molding device according to claim 6, wherein: fixed plate (212) orientation is located the periphery array distribution of fixed head (213) and has a plurality of connecting pieces (214), and on fixed plate (212) was worn to locate in connecting piece (214) activity, all the activity has cup jointed suppress piece (215) on a plurality of connecting pieces (214), and a plurality of connecting pieces (214) are connected with stripper plate (250) jointly towards the one end of mount pad (221), and suppress piece (215) and are located between stripper plate (250) and fixed plate (212).