CN2345304Y - Device for manufacture connecting screw on reinforcing bar end - Google Patents
Device for manufacture connecting screw on reinforcing bar end Download PDFInfo
- Publication number
- CN2345304Y CN2345304Y CN 97210661 CN97210661U CN2345304Y CN 2345304 Y CN2345304 Y CN 2345304Y CN 97210661 CN97210661 CN 97210661 CN 97210661 U CN97210661 U CN 97210661U CN 2345304 Y CN2345304 Y CN 2345304Y
- Authority
- CN
- China
- Prior art keywords
- bar end
- steel bar
- manufacturing installation
- joint screw
- thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a manufacturing device of connecting screw threads on a reinforcing bar end head, comprising a base material reason circular device, and a screw thread preparation device. The screw thread preparation device comprises at least three rolled thread wheels which have return rotation body type interior contact hollow cavities to distribute, a rotary disc which is connected with the rolled thread wheel and on the core part of which a through hole is arranged, a driver which drives the rotary disc to rotate, a clamping disc which clamps the reinforced bar, and a base. A pressing-in awl which can perform axial feed is arranged on the tooth part of the rolled thread wheel. Through the mode of the cold pressing, the reinforced bar end head is processed, the screw threads are connected. The utility model has the advantages that a hardened layer on the surface of the reinforced bar body is arranged, the outer surface of the screw thread can be hardened twice, the bottom diameter of screw thread teeth is larger, etc.
Description
The utility model relates to a kind of manufacturing installation of construction site joint screw of steel bar end.
In the construction site, often two reinforcing bars are implemented mechanical connection.In the prior art, adopt thread connecting mode morely, no matter be taper thread or cylindrical thread, all adopt the manufacture of machining, and machining directly causes reinforcing bar reduced diameter, stressed cross section to diminish, and reinforcing bar epidermis hardened layer is removed in cutting, the substitute is softer internal layer, and these all make the reinforcing bar bearing capacity descend.
The purpose of this utility model is to overcome weak point of the prior art, and the manufacturing installation of the stronger joint screw of steel bar end of a kind of screw thread bearing capacity of processing is provided.
The purpose of this utility model realizes by following approach.
The manufacturing installation of joint screw of steel bar end, comprise base material reason circle device and thread preparing device, its structural feature is: thread preparing device comprises at least three to have cylindrical die roll, rotating disk, driver, chuck and the base that revolution bodily form inscribe cavity distributes, the rotating disk core has through hole and is connected with cylindrical die roll, driver and rotating disk are in transmission connection, chuck can with the reinforcing bar clamping, rolled thread gear teeth portion has the awl that is pressed into that can implement axial feed.
The purpose of this utility model is also realizing by following approach.
All cylindrical die rolls are isometrical, etc. lead angle and along same circumference uniform distribution.
Base top has lower guideway, and chuck is bearing on the base by the upper rail with the lower guideway pairing.
Base top has lower guideway, and driver and rotating disk are bearing on the base by the upper rail with the lower guideway pairing.
Base material reason circle device is a kind of reason round belting of colding pressing, comprise upper cross base, die shoe, framed, and device for exerting, device for exerting is in transmission connection with upper bolster and die shoe respectively in the mode that can make upper and lower die holder and close up and separate, the final full circle that becomes capable of being combined of upper cavity and lower mode cavity.
Said device for exerting can be a kind of helical structure, also can be a kind of hydraulic means.
In sum, the utility model has following advantage compared to existing technology: manufacturing installation is a connecting thread of processing steel bar end by the mode of colding pressing, not only kept reinforcing bar epidermis hardened layer, and in cold pressure procedure, the steel bar end surface is again through 2 underhardenings; Simultaneously, the cold presswork of chipless, not only can not dwindle the reinforcing bar external diameter, and the fin of reinforcing bar periphery and reinforcing bar body are through pressing the circle kneading again, make the external diameter of steel bar end that increase is slightly arranged on the contrary, thereby the footpath is close with the external diameter of reinforcing bar body at the bottom of making the tooth of joint screw of steel bar end, and experimental data shows, the middle footpath of the joint screw of steel bar end that processes through this cold press device described in the utility model equates with the external diameter of reinforcing bar body.Therefore, use manufacturing installation described in the utility model the joint screw of steel bar end of on-the-spot processing have stronger bearing capacity.
Accompanying drawing 1 is the structural representation of thread preparing device in the joint screw of steel bar end manufacturing installation described in the utility model.
Accompanying drawing 2 is to show the schematic diagram that is pressed into cone-shaped
Accompanying drawing 3 is that A is to view
Accompanying drawing 4 is B-B cutaway views
Accompanying drawing 5 is structural representations of base material reason circle device in the joint screw of steel bar end manufacturing installation described in the utility model.
Below we carry out more detailed description to the present invention in conjunction with the accompanying drawings.
Most preferred embodiment:
The manufacturing installation of joint screw of steel bar end is made up of base material reason circle device and thread preparing device.
With reference to accompanying drawing 1, accompanying drawing 3 and accompanying drawing 4 thread preparing devices are made up of Thread rolling head 1, rotating disk 2, driver 3, chuck 4 and base 5 etc., and cylindrical die roll 1 isoperimetric that three isometrical grooves are helix is distributed on the rotating disk 2, and in the same way, same lead angle; Rotating disk 2 is actually a kind of scroll chuck, every claw 21 is with by bolt 22 and its affixed clamping plate 23 cylindrical die roll 1 clamping being bearing between the two, but cylindrical die roll 1 rotation, rotating disk 2 cores have can be by the through hole of reinforcing bar, and rotating disk 2 rear ends are connected with driver 3 outputs; Driver 3 bottoms and base 5 are affixed, and the chuck 4 of stinging reinforcing bar in order to card also is a kind of scroll chuck, and chuck 4 is bearing on the tailstock 9, and tailstock 9 bottoms have upper rail, the lower guideway pairing on this upper rail and base 5 tops.Tailstock 9 bottoms are connected with a tooth bar 91, be bearing on the base 5 by axle 93 with tooth bar 91 meshed gears 92, axle 93 1 ends are connected with handgrip 94 by jaw clutch, when realizing that with cylindrical die roll 1 reinforcing bar of interlock can obtain axial feed power by the rotating shaft 2 of rotating, handgrip 94 can be pulled out, disengage with axle 93.
With reference to accompanying drawing 5, base material reason circle device comprises the upper bolster 6 with upper cavity 61, the die shoe 7 with lower mode cavity 71, framed and device for exerting 8.Device for exerting 8 is a kind of hydraulic jack, is positioned at die shoe 7 belows, and push rod 81 contacts with die shoe 7; Framedly form by upper plate 10 and traveller 11, traveller 11 lower ends and hydraulic jack are affixed, the upper end is then by helicitic texture and 10 fastening connections of upper plate, and upper and lower die holder 6 is slidingly connected by the chute and the traveller 11 of both sides, and is clamped between left and right two travellers 11.Shadoof 12 is fastenedly connected with upper bolster 6; Under upper and lower die holder 6, the 7 applying situations, the elastic modelling quantity that should be taken into account the workpiece of pressing when a full circle is determined the bore of this full circle is formed in upper and lower die cavity 61,71 cross sections.
It is same as the prior art that present embodiment is not stated part.
Claims (4)
1. the manufacturing installation of joint screw of steel bar end, comprise base material reason circle device and thread preparing device, it is characterized in that, thread preparing device comprises at least three cylindrical die roll (1), rotating disk (2), driver (3), chuck (4) and the bases (5) that distribute to have revolution bodily form inscribe cavity, rotating disk (2) core has through hole and is connected with cylindrical die roll (1), driver (3) is in transmission connection with rotating disk (2), chuck (4) can with the reinforcing bar clamping, cylindrical die roll (1) tooth portion has the awl that is pressed into that can implement axial feed.
2. the manufacturing installation of joint screw of steel bar end according to claim 1 is characterized in that, all cylindrical die rolls (1) are isometrical, etc. lead angle and along same circumference uniform distribution.
3. the manufacturing installation of joint screw of steel bar end according to claim 1 is characterized in that, base (5) top has lower guideway, and chuck (4) is bearing on the base (5) by the upper rail with the lower guideway pairing.
4. the manufacturing installation of joint screw of steel bar end according to claim 1, it is characterized in that, base material reason circle device is a kind of reason round belting of colding pressing, comprise upper bolster (6), die shoe (7), framed, and device for exerting (8), device for exerting (8) is in transmission connection with upper bolster (6) and die shoe (7) respectively in the mode that can make upper and lower die holder (6,7) and close up and separate, the final full circle that becomes capable of being combined of upper cavity (61) and lower mode cavity (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97210661 CN2345304Y (en) | 1997-02-01 | 1997-02-01 | Device for manufacture connecting screw on reinforcing bar end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97210661 CN2345304Y (en) | 1997-02-01 | 1997-02-01 | Device for manufacture connecting screw on reinforcing bar end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2345304Y true CN2345304Y (en) | 1999-10-27 |
Family
ID=33929488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97210661 Expired - Fee Related CN2345304Y (en) | 1997-02-01 | 1997-02-01 | Device for manufacture connecting screw on reinforcing bar end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2345304Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072003A (en) * | 2012-12-27 | 2013-05-01 | 宁波圣龙汽车动力系统股份有限公司 | Assembling mechanism for assembled cam shaft |
| CN105773260A (en) * | 2016-05-02 | 2016-07-20 | 杨娇仔 | Clamp for assisting lathe three-jaw chuck and adjusting axial length |
-
1997
- 1997-02-01 CN CN 97210661 patent/CN2345304Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072003A (en) * | 2012-12-27 | 2013-05-01 | 宁波圣龙汽车动力系统股份有限公司 | Assembling mechanism for assembled cam shaft |
| CN105773260A (en) * | 2016-05-02 | 2016-07-20 | 杨娇仔 | Clamp for assisting lathe three-jaw chuck and adjusting axial length |
| CN105773260B (en) * | 2016-05-02 | 2017-09-29 | 西安艾德三维科技有限公司 | A kind of lathe three-claw chuck auxiliary is with adjustment axial length fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |