CN2690073Y - Steel bar peeling rib straight screw thread rolling machine head - Google Patents
Steel bar peeling rib straight screw thread rolling machine head Download PDFInfo
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- CN2690073Y CN2690073Y CN 200420016021 CN200420016021U CN2690073Y CN 2690073 Y CN2690073 Y CN 2690073Y CN 200420016021 CN200420016021 CN 200420016021 CN 200420016021 U CN200420016021 U CN 200420016021U CN 2690073 Y CN2690073 Y CN 2690073Y
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- machine head
- rolling machine
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Abstract
The utility model discloses a peeling-rib straight-screw-thread rolling-machine head for a steel bar, belonging to the technical field of the metal cold rolling. The peeling rib device of the steel bar is characterized in that 4 cutter seats (2) are formed a slide fit with the radial direction slide slot of a circular chuck (3), and the cutter seat is provided with cutter-expanding springs (12) and an axial sliding cutter-expanding mechanism which is composed fixedly of a cutter-expanding ring (4), a catch plate (5) and a sliding bush (6). The rolling thread device of the steel bar is characterized in that three eccentric shafts (7) are arranged on the front cover (8) and the back cover (10) of a body (9), and gear rings (15) are engaged respectively with three regulating gears (14) on the three eccentric shafts (7) and are engaged with eccentric regulating gears (17). The circular chuck (3) is fixed with the body (9), and the centre holes of three rolling wheels (13) are matched in rotation directly and respectively with the three eccentric shafts (7). The utility model has the advantages of simple structure, good manufacturability, high machining precision, great working range, good rigidity, high intensity, wear-proof and durable performance, long life time and convenient operating maintenance, and is suitable for being used in the construction site.
Description
Technical field
The utility model belongs to cold rolling manufacturing metallic article technical field, is specifically related to building bar rolled thread machinery.
Background technology
Along with development of times, human more and more higher to the requirement of building safety and efficiency of construction, and the interconnection technique of the reinforcing bar of architectural a large amount of employings also improves thereupon gradually, scientific and technological content constantly increases.From the welding of beginning poor reliability, develop into sleeve extruding connection, taper thread connection, the thick straight thread connection of pier, to the stripping rib Straight thread screw rolling machine of up-to-date development in recent years, just use in large-scale popularization.Several Straight thread screw rolling machines of Ying Yonging are greatly improved than the earlier generations product on performance in the market, but still have some shortcomings.(1) several key components, complicated as chuck and tool rest structure, make cumbersome; (2) intensity of tool rest and blade and rigidity are all not enough, and machining accuracy is poor, damage easily, make troubles to site construction.(3) cylindrical die roll and mandrel cooperate, the employing needle roller that has, but that needle roller is installed is very bothersome, be easy to again cracked, the roll threading low precision; The employing copper sheathing that has, same exist be not durable, the problem of low precision, manufacturability difference; The axle sleeve that the employing powder metallurgical material that has is done, this structure be owing to be double-deck compounding ingredient, cost up, and manufacturing cost also increases simultaneously, and the also difficult control in fit-up gap is poor for applicability.The prior art complex structure, processing technology is poor, precision is low, problem fragile, that the life-span is short, the range of work is little is overcome always.
Summary of the invention
The purpose of this utility model provides a kind of steel bar rib-stripping Straight thread screw rolling machine head, and it has characteristics such as simple in structure, that anufacturability good, machining accuracy is high, durable, life-span long, operating maintenance is convenient.Be particularly useful for the various construction sites that need reinforcing bar to connect.
Main technical schemes of the present utility model is: a kind of steel bar rib-stripping Straight thread screw rolling machine head, comprise reinforcing bar stripping rib apparatus and reinforcing bar roll threading device, the structure of its reinforcing bar stripping rib apparatus is: 4 are fixed on the rib peeling knife sheet on 4 tool rests, the radial groove of 4 tool rests and ring-type chuck is slidingly matched, be provided with the cutter spring that rises between tool rest and chuck, and be provided with by rise cutter ring, dial and sliding sleeve and fix the cutter mechanism of forming that rises that endwisely slips; Reinforcing bar roll threading apparatus structure is: three eccentric shafts are housed on the protecgulum of body and the bonnet, and three cylindrical die rolls are arranged, gear ring all be fixed on three eccentric shafts on gear be meshed, and with the eccentric adjusting gears engaged; Ring-type chuck and body fix; Bonnet is provided with and the reductor axle fixing structure, it is characterized in that the centre bore of three cylindrical die rolls directly is rotatably assorted with three eccentric shafts respectively.Since removed needle bearing in the prior art or copper sheathing, powder metallurgy axle sleeve, long service life, not fragile, and appearance and size is constant, intensity increases, and processing technology is good, the precision height, easily installation, maintenance facts have proved, is particularly suitable for working under the stressed mal-condition of cold extrusion high pressure; And,, enlarge the processing diameter range of screw-thread steel so the rolled thread diameter is increased because cylindrical die roll intensity increases, and its diameter can diminish.
The axle at the two ends of three above-mentioned eccentric shafts directly and the hole on protecgulum and the bonnet be rotatably assorted to good.Characteristics such as precision height, processing technology are good because of having equally, intensity increase, long service life, not fragile, easy installation, maintenance.
In order to make chuck be convenient to adopt grinding or to adopt the line cutting processing to improve precision, the chuck cross recess adopts symmetric design.Be to have the cross ∪ shape groove that is symmetrically distributed with the cross coordinate on the above-mentioned chuck, ∪ shape groove notch one side is fixed with blade slip baffle ring, and the tool rest slipper is the square structure, and the four sides is slidingly matched.Saved the two small trough guide frame on ∪ shape groove both sides in the prior art, replaced asymmetric groove with the cross-shaped symmetrical groove, thus make it to have simple in structure, processing technology good, processing and quality of fit height, can guarantee the characteristics of high cutting precision.
In order to make the rib peeling knife sheet strengthen intensity and to produce the volume bits, can adopt blade thickening design.In order to produce volume bits, so as laborsaving, be easy to out bits, can make above-mentioned rib peeling knife sheet be provided with volume bits gathering sill.
In order to make tool rest increase rigidity and intensity, also be convenient to make, reduce accumulated error, be easy to processing, and improved precision and intensity, above-mentioned tool rest can be monolithic construction and cube structure.
The utility model has overcome some defectives that existing rolled thread head exists, have simple in structure, anufacturability good, machining accuracy is high, the range of work is big, good rigidly, intensity height, wear-resisting, durable, characteristics such as the life-span long, operating maintenance makes things convenient for.Be particularly useful for the various construction sites that need reinforcing bar to connect.
Be described further below in conjunction with embodiment and accompanying drawing, but not as to qualification of the present utility model.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the A-A profile of Fig. 1.
The specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, the structure of reinforcing bar stripping rib apparatus is in the head: 4 are fixed on rib peeling knife sheet 18 on 4 tool rests 2, on 4 tool rests 2 and the ring-type chuck 34 be mutually cross radially ∪ shape chute be slidingly matched, 4 radially ∪ shape chute be symmetrically distributed with cross center coordinate, ∪ shape groove notch one side is fixed with blade slip baffle ring 1, tool rest 2 slippers are the square structure, and the four sides is slidingly matched; 3 on tool rest 2 and chuck are provided with the cutter spring 12 that rises; Tool rest 2 is a monolithic construction, and rib peeling knife sheet 18 is provided with volume bits gathering sill.And be provided with by the cutter ring 4 that rises, dial 5 and sliding sleeve 6 and fix the cutter mechanism of forming that rises that endwisely slips.Reinforcing bar roll threading apparatus structure is: direct respectively the rotating with three eccentric shafts 7 of the centre bore that 13, three cylindrical die rolls 13 of three cylindrical die rolls directly are housed on three eccentric shafts, 7, three eccentric shafts 7 is housed on the protecgulum 8 of body 9 and the bonnet 10 cooperates.The axle at the two ends of three eccentric shafts 7 directly with protecgulum 8 and bonnet 10 on the hole rotate and cooperate.Gear ring 15 all be fixed on three eccentric shafts 7 on gear 14 be meshed, and with eccentric adjusting gear 17 engagement.Ring-type chuck 3 fixes with body 9.Being about to Stripping rib and rolled thread two parts is linked into an integrated entity by one group of screw.5,6,7,8,9 piece numbers of rolled thread part are linked together by bolt and pin.3 work cylindrical die rolls are contained in respectively in the middle of 3 eccentric shafts, and by moving between the pad Control Shaft of front and back.Bonnet 10 is provided with and reductor axle fixing structure 11.Tool rest 2, cylindrical die roll 13 can be changed with different size according to diameter of work and processing request.In order to solve the easily broken problem of eccentric shaft, adopt the high strength design, can realize of the on a large scale processing of a head to φ 10～φ 40 specification reinforcing bars.Needle roller is frangible in order to solve, the installation trouble, and adopt axle sleeve to increase cost and be difficult to guarantee and use defectives such as gap, the utility model adopts eccentric shaft and cylindrical die roll direct coupled structure, selects the best fit gap and selects best eccentric shaft quenching hardness for use, realizes promptly wear-resisting simply again practical purpose.
The course of work and principle: this Thread rolling head is connected with reductor by connector 11 by four screws and seam, and reductor drives this head and rotates, and the reductor output revolutions is 50 rev/mins (can select forward or reverse to process left and right screw thread).Before the work, earlier adjusting four according to the diameter of processing reinforcing bar controls the cutter ring 4 that rises of the cutting diameter of cutter＜use instead different size 〉, (cylindrical is by 60 ° of grooves of pectination to adjust 3 cylindrical die rolls 13 again, pitch (2,2.5,3) is optional), rolled thread diameter＜usefulness adjusting gear 17, rotate gear ring 15, drive three pinions 14 that are connected on the eccentric shaft 7 again and adjust 〉.After two adjustment all reach requirement, can start working.Clip reinforcing bar, motor drives reductor and head be the translation feed on axial guidance, with the continuous feeding of screw-thread steel workpiece that is fixed on the screw-rolling machine.When four blades touch steel bar end, promptly begin cutting (also being the stripping rib), after being cut to specific length, (control) with travel switch, make cutter mechanism and body 9 relative motions of rising of sliding, make 4 tool rests 2 and 4 rib peeling knife sheet 18 outside spreadings (controlling) with collision block, break away from workpiece, no longer participate in cutting.Head continues toward moving left, and when three cylindrical die rolls 9 touched by the steel bar end of stripping rib, rolled thread work promptly began, when three wheels 13 revolve round the sun with head, all around eccentric shaft 7 rotations of oneself, head moves to left with lathe separately, and three cylindrical die rolls 13 roll out screw thread with the reinforcing bar cold extrusion by force.Roll threading finishes, the machine stall, and reductor counter-rotating then moves to right and withdraws from, and makes it disengaging work, and a working procedure is finished.
Design feature:
1, the design feature of chuck 3.Chuck is one of key component of stripping flank in the Thread rolling head, and its main function is that four tool rests are slided in the above to realize four blade feeds, withdrawing; And can be on the chuck hub axis for the point of a knife that makes four blades, existing this type of chuck cross recess is designed to eccentric, this groove is not easy to fine finishining (such as adopting advanced line cutting processing), and be designed to symmetrical channels, just can overcome this technologic defective, realize high accuracy processing.
2, the design feature of tool rest 2.The effect of tool rest is fixturing blade and cutter can be slided in chuck slot on request.Existing tool rest structure has two kinds basically: a kind of is whole, but structure is cross, and structure is comparatively complicated, and chuck has also been necessarily required cross recess, makes very smart comparatively difficulty.Another kind is the square formula, but divides body structure, and manufacturing and installation are all pretty troublesome.This tool rest then adopts one square formula, and is easy to process, integral quenching, and result of use is good.
3, the design feature of blade 18.The blade thickness that general screw-rolling machine uses is 10mm, and impact resistance is poor, does not have chip curling groove simultaneously, and is unfavorable to cutting.This blade thickness adds to 14mm, increases chip curling groove, and resistance to cutting is little, and blade is not fragile, the life-span height.
4, the design feature of eccentric shaft 7.The effect of eccentric shaft is the radial pressure that carrying is transmitted by cylindrical die roll, and can adjust eccentric to realize the reinforcing bar of processing different-diameter.General eccentric shaft diameter is φ 28mm, and the overstriking of this eccentric shaft is to φ 34mm, and intensity increases, and the life-span improves.
5, cooperate characteristics between cylindrical die roll 13 and the eccentric shaft 7.The cooperation of cylindrical die roll of Chu Xianing and eccentric shaft in the market has three kinds of modes basically: (1) adopts needle bearing; (2) adopt copper sheathing; (3) axle sleeve that adopts the powder metallurgical material to do.These three kinds of structures all have some defectives (seeing for details noted earlier).The utility model adopts the simplest fit system: direct formula.Promptly select the best fit gap, allow cylindrical die roll directly roll and cooperate with eccentric shaft.Because the cylindrical die roll rotating speed is not high, has only 10-20 rev/min, and cylindrical die roll and eccentric shaft all are to adopt high-alloy steel to make, quenching hardness is all more than HRC63, therefore wearability is worked poor unlike above-mentioned three kinds, has so just reached simple in structure, uses purposes such as reliable, easy for installation.
In sum, because this rolled thread head has above advantage, thereby has very big market potential, will bring into play the effect of its uniqueness on China and the grand way of Da Zhan, international building field.
Claims (5)
1, a kind of steel bar rib-stripping Straight thread screw rolling machine head, comprise reinforcing bar stripping rib apparatus and reinforcing bar roll threading device, the structure of its reinforcing bar stripping rib apparatus is: 4 are fixed on rib peeling knife sheet (18) on 4 tool rests (2), 4 tool rests (2) are slidingly matched with the radial groove of ring-type chuck (3), be provided with the cutter spring (12) that rises between tool rest (2) and chuck (3), and be provided with by the cutter ring (4) that rises, dial (5) and sliding sleeve (6) and fix the cutter mechanism of forming that rises that endwisely slips; Reinforcing bar roll threading apparatus structure is: on the protecgulum (8) of body (9) and the bonnet (10) three eccentric shafts (7) are housed, and three cylindrical die rolls (13) are arranged, gear ring (15) all be fixed on three eccentric shafts (7) on a gear (14) be meshed, and mesh with eccentric adjusting gear (17), ring-type chuck (3) fixes with body (9), bonnet (10) is provided with and the reductor axle fixing structure, it is characterized in that direct respectively the rotating with three eccentric shafts (7) of centre bore of three cylindrical die rolls (13) cooperates.
2, steel bar rib-stripping Straight thread screw rolling machine head according to claim 1, it is characterized in that three eccentric shafts (7) two ends axle directly with protecgulum (8) and bonnet (10) on the hole rotate and cooperate.
3, steel bar rib-stripping Straight thread screw rolling machine head according to claim 1 and 2, it is characterized in that having on the chuck (3) the cross ∪ shape groove that is symmetrically distributed with the cross coordinate, ∪ shape groove notch one side is fixed with blade slip baffle ring (1), tool rest (2) slipper is the square structure, and the four sides is slidingly matched.
4, steel bar rib-stripping Straight thread screw rolling machine head according to claim 3 is characterized in that rib peeling knife sheet (18) is provided with volume bits gathering sill.
5, steel bar rib-stripping Straight thread screw rolling machine head according to claim 4 is characterized in that tool rest (2) is monolithic construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420016021 CN2690073Y (en) | 2004-04-06 | 2004-04-06 | Steel bar peeling rib straight screw thread rolling machine head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420016021 CN2690073Y (en) | 2004-04-06 | 2004-04-06 | Steel bar peeling rib straight screw thread rolling machine head |
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| Publication Number | Publication Date |
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| CN2690073Y true CN2690073Y (en) | 2005-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200420016021 Expired - Fee Related CN2690073Y (en) | 2004-04-06 | 2004-04-06 | Steel bar peeling rib straight screw thread rolling machine head |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553993A (en) * | 2011-12-16 | 2012-07-11 | 西安交通大学 | Eccentric shaft reducing mechanism for spline roll forming equipment |
| CN103447427A (en) * | 2013-09-09 | 2013-12-18 | 曹立峰 | Method for shortening machining time of steel bar head of automatic rib stripping thread rolling machine |
| CN104827298A (en) * | 2015-05-29 | 2015-08-12 | 三峡大学 | Rebar thread rolling machine with end face cutting function |
| CN111558677A (en) * | 2020-04-08 | 2020-08-21 | 谢挺 | Thread rolling device of straight thread rolling machine for reinforcing steel bars |
| CN115464410A (en) * | 2022-10-12 | 2022-12-13 | 上海蔚建科技有限公司 | Flexible reinforcing steel bar processing line |
| WO2024045008A1 (en) * | 2022-08-31 | 2024-03-07 | 上海泛华紧固***有限公司 | Pipe thread machining assembly and method for assembling machining assembly |
-
2004
- 2004-04-06 CN CN 200420016021 patent/CN2690073Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553993A (en) * | 2011-12-16 | 2012-07-11 | 西安交通大学 | Eccentric shaft reducing mechanism for spline roll forming equipment |
| CN102553993B (en) * | 2011-12-16 | 2014-07-02 | 西安交通大学 | Eccentric shaft reducing mechanism for spline roll forming equipment |
| CN103447427A (en) * | 2013-09-09 | 2013-12-18 | 曹立峰 | Method for shortening machining time of steel bar head of automatic rib stripping thread rolling machine |
| CN104827298A (en) * | 2015-05-29 | 2015-08-12 | 三峡大学 | Rebar thread rolling machine with end face cutting function |
| CN111558677A (en) * | 2020-04-08 | 2020-08-21 | 谢挺 | Thread rolling device of straight thread rolling machine for reinforcing steel bars |
| WO2024045008A1 (en) * | 2022-08-31 | 2024-03-07 | 上海泛华紧固***有限公司 | Pipe thread machining assembly and method for assembling machining assembly |
| CN115464410A (en) * | 2022-10-12 | 2022-12-13 | 上海蔚建科技有限公司 | Flexible reinforcing steel bar processing line |
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| Date | Code | Title | Description |
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| 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 |