CN1086449C

CN1086449C - Connecting elements and its manufacture method

Info

Publication number: CN1086449C
Application number: CN98121949A
Authority: CN
Inventors: 罗灿钟; 林台; 蔡荣琳
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 1998-10-14
Filing date: 1998-10-14
Publication date: 2002-06-19
Anticipated expiration: 2018-10-14
Also published as: CN1250848A

Abstract

The present invention provides a fastener and a production method thereof. The fastener can provide good screwing effect for combination members. The present invention has the production method that the flange part and a shaft sleeve part of the fastener are separately arranged, wherein the shaft sleeve part and an inner screw thread are bent into a shaft form after being formed by punching flat plates, and then, a screw tapper is used for tapping teeth of the inner screw thread in order to make each tooth peak of the inner screw thread regular and stable. Thus, the present invention is favorable for screw locking of the combination members and ensures the screwing force among the combination members.

Description

A kind of connected member and manufacture method thereof

[technical field]

The present invention is a kind of connected member and manufacture method thereof, refers in particular to a kind ofly to be used for the riveted joint of at least two members and connected member and the manufacture method thereof that is threaded is provided.

[background technique]

The existing connected member relevant with the present invention as shown in Figure 1, it is a kind of connected member of on connector, two members being riveted and being threaded that uses, this connected member 8 comprises lip part 80 and shaft sleeve part 81, wherein shaft sleeve part 81 is by the extension of lip part 80 one and is provided with the axis hole 810 that is through to lip part 80, the inner circumference edge of axis hole 810 is provided with internal thread 811, and ora terminalis is formed with the featheredge that can be beneficial to riveted.In use as Fig. 2, shaft sleeve part 81 can be set in the perforation of the coupling unit of wanting 90,91, and make this lip part 80 support a side that terminates in two coupling units, and be riveting in the opposite side of two coupling units by the ora terminalis of shaft sleeve part 81, two conjunctions can be combined as a whole, and, then further two coupling units are threaded to one by the internal thread 810 of shaft sleeve part 81.

But the very cumbersome inconvenience of existing connected member manufacturing, and waste material is many, the internal thread machining difficulty and the inaccuracy that are used to be threaded, see also shown in the accompanying drawing 3, existing connected member is workpiece to be lathed the blank with lip part and shaft sleeve part with method for turning earlier, get out axis hole in shaft sleeve part with boring method again, use the internal thread of tapping machine tapping axis hole again, just finish through the fine finishing step at last, because the connected member size is little, thereby on fine material, carry out above steps, not only processing is difficult for the manufacture cost height, and work flow is loaded down with trivial details, the most important thing is that the shaft sleeve part of existing connected member is short, the internal thread thread number of its axis hole is few, being difficult for carrying out, the actual power of screwing togather not is very desirable except that the processing request of tapping step is high.Another kind of processing pattern is in the die casting mode, with lip part, shaft sleeve part one casting forming, cut tapping with nothing again and form internal thread, though this processing mode can save steps such as turning, boring, the waste material that is produced is also less, but formed internal thread tooth peak is irregular, causes bad connection phenomenon when being threaded, except that influencing screw threads for fastening power, internal thread also damages easily and is not durable.

[summary of the invention]

Main purpose of the present invention be to provide a kind of easy to manufacture, assembling is simple, reduce the finished product reject ratio, and the connected member manufacture method that can reduce cost and improve the quality.

Another object of the present invention is to provide a kind of connected member, it can produce the good effect that is threaded with combination member, can guarantee screw threads for fastening power, and the object that combines with its institute is mutually combined firmly.

The major character of connected member manufacture method of the present invention is that the lip part with connected member separates setting with shaft sleeve part, and wherein shaft sleeve part and its internal thread are with after the flat plate impact briquetting, through being bent to form a shape, combine with lip part again by cutting tapping the further tapping of internal thread, and can make that each tooth peak of internal thread is neatly stable, be beneficial to being threaded and guaranteeing mutual screw threads for fastening power of conjunction.

Connected member structure of the present invention is characterised in that the shaft sleeve part of this connected member is to combine with lip part with interference fit, and be to be provided with stopping device between lip part and shaft sleeve part, when guaranteeing connected member and the institute combination member is threaded, do not have the phenomenon of rotation by the setting of this stopping device.

According to above-mentioned feature, wherein this stopping device comprises several convex bodys that are located at several grooves on the lip part and are located at shaft sleeve part.

Compared with prior art, that connected member provided by the invention has is easy to manufacture, the assembling simple, and connected member and very firm being threaded of combination object joint can be provided.

[description of drawings]

Fig. 1 is the stereogram of existing connected member.

Fig. 2 is existing connected member and the insulating body of connector and the side view that shading member is fixed in one.

Fig. 3 is the method step that existing connected member is made.

Fig. 4 is the method step that connected member of the present invention is made.

Fig. 5 is the three-dimensional exploded view of connected member of the present invention.

Fig. 6 is the three-dimensional combination figure of connected member of the present invention.

Fig. 7 is the three-dimensional phantom of connected member of the present invention.

[embodiment]

See also Fig. 4, connected member manufacture method of the present invention comprises: first forming step 1, bending step 2, cut tapping step 3, second forming step 4 and integrating step 5 etc., can produce by the synthetic connected member of two component groups by these steps.First forming step 1, be metal ladder abnormity material 10 to be struck out predetermined specification (a slice only is shown on the figure, but actual make the last time punching press several pieces), and on a surface of this metal abnormity material 10, form screw thread lines 11, and, then form three equidistant convex bodys 12 with respect to the another side of screw thread lines 11.Then, bend step 2 and aforementioned punching press is had the metal abnormity material of screw thread lines 11, with screw thread lines 11 is that nexine is an axis body by bending mould (not shown) bending, again by second forming step 4, another sheet metal is stamped out square body through stamping press (not shown), and forming the fish eyelet 40 that the aperture is slightly less than aforementioned axis shape body diameter on this square body, the inner circumference edge of fish eyelet 40 forms three equidistant grooves 41 simultaneously.Again through integrating step 5, axis body is inserted on the square body with interference fit, and make convex body 12 on the axis body be embedded in the groove 41 of square body, axis body can fixedly be the one and the Shi Buhui rotation of can guaranteeing to be threaded with square body like this, in addition, its mating face of axis body after bending is that can to carry out spot welding affixed with it.Then, again cutting tapping step 3, through 11 tapping of tapping machine 30 double thread lines, the tooth peak of each screw thread is neatly stable like this with the axis body after the bending, can be beneficial to being threaded and guaranteeing mutual screw threads for fastening power of conjunction.

The continuous Fig. 5 that sees also, it is the connected member 6 that manufactures according to this method, this connected member 6 has lip part 60 and shaft sleeve part 61, wherein this lip part 60 is a square body, which is provided with fish eyelet 601, and the inner periphery of fish eyelet 601 is provided with three grooves 602, and shaft sleeve part 61, comprise circular shaft body 610 and antelabium 611, wherein the external diameter 6101 of circular shaft body 610 is slightly larger than the internal diameter of aforementioned fish eyelet 601, and has internal thread 6102, its antelabium 611 is provided with convex body 612 corresponding to above-mentioned groove 602 places of lip part 60, connected member 6 after the assembling is as Fig. 6 and shown in Figure 7, this shaft sleeve part 61 is to be combined as a whole with interference fit and lip part 60, and add cooperating of this convex body 612 and groove 602 as shown in Figure 5, not only can be on the fish eyelet 601 of lip part 60 with shaft sleeve part 61 interference fit, stable and do not have a phenomenon of rotation when shaft sleeve part 61 is threaded.

Claims

1. connected member, it can and provide two member riveteds at least and be threaded, and it comprises a lip part and a shaft sleeve part, it is characterized in that: lip part is a polygonal body, which is provided with fish eyelet, and the inner periphery of fish eyelet is provided with several grooves; Shaft sleeve part is a circular shaft body with internal thread, the external diameter of circular shaft body is slightly larger than the fish eyelet aperture, the ora terminalis of circular shaft body then has antelabium, above-mentioned groove corresponding to lip part on antelabium is provided with convex body, when shaft sleeve part was interference fitted on the lip part, the convex body of shaft sleeve part embedded in the groove of lip part and forms one.

2. connected member as claimed in claim 1 is characterized in that: described lip part is a square body.

3. connected member as claimed in claim 1 is characterized in that: described internal thread is provided in a side of the inner circumference edge near the circular shaft body of antelabium.

4. the manufacture method of a connected member as claimed in claim 1, it is characterized in that: this method includes first forming step and second forming step, wherein first forming step is the little sheet material that metallic plate punching is become several sections same size specifications, and forms the screw thread lines at the one side impression of each small dimension sheet material; And on sheet material, form several convex bodys; The small dimension sheet material that again impression is had the screw thread lines is that nexine is an axis body through the bending of bending mould with the screw thread lines; Second forming step is through stamping press with another sheet metal, stamp out several polygonal bodies, and form the fish eyelet that the aperture is slightly less than aforementioned axis shape body diameter on each polygonal body, and further form several grooves at the inner circumference edge of fish eyelet, with above-mentioned small dimension sheet material after bending is axis body, can be embedded on the groove of polygonal body by these convex bodys, embed in the groove of polygonal body simultaneously and form one by the convex body of axis body; Axis body with first forming step is inserted on the polygonal body of second forming step at last; Again will in conjunction with after axis body through tapping machine with the tapping of screw thread lines.

5. the manufacture method of connected member as claimed in claim 4, it is characterized in that: the sheet metal in described first forming step is to adopt stair-stepping special-shaped material, and forms the screw thread lines on a surface of stepped special-shaped material.

6. as the manufacture method of connected member as described in claim 4 or 5, it is characterized in that: will bend jointing place welding by welding step into axis body at next step of bending step.

7. as the manufacture method of connected member as described in the claim 6, it is characterized in that: described polygonal body is a square body.