CN2396917Y - Straight thread screw rolling machine - Google Patents
Straight thread screw rolling machine Download PDFInfo
- Publication number
- CN2396917Y CN2396917Y CN 99239919 CN99239919U CN2396917Y CN 2396917 Y CN2396917 Y CN 2396917Y CN 99239919 CN99239919 CN 99239919 CN 99239919 U CN99239919 U CN 99239919U CN 2396917 Y CN2396917 Y CN 2396917Y
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- rolling machine
- installation sleeve
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Abstract
The utility model relates to a straight thread screw rolling machine which comprises a frame-type base, a motor, a decelerator, a decelerator base, a bearing frame, a rolling head, a cutting head, a positioning workpiece, a grip vice, and a connecting ring, wherein, the cutting head is composed of a cutter holder, a blade, a square hole body, a ring with a fixed diameter, etc., and the rolling head comprises a core installation cover, a core, a plurality of hobbing cutter holders, and a plurality of screw rolling wheels. The diametric control and the positioning of the screw rolling machine are carried out through a set of adjustable screw rolling wheels, threads with a certain length, a certain specification, and a certain pitch is rolled at the end of a workpiece by the screw rolling wheels, and the property such as strength and hardness of threads is correspondingly enhanced simultaneously, and screws of straight and taper threads of steel bars and wall entrance fixed screws can be processed.
Description
The utility model relates to a kind of thread generator tool, refers to a kind of Straight thread screw rolling machine of building iron being made multiple screw thread rolled thread processing such as straight thread usefulness especially.
At present, in construction, carry out the butt joint of reinforcing bar, the mode that adopts sleeve to be spirally connected usually is about to the end reinforced screw thread of making, and with special joint two reinforcing bars is screwed.The reinforcing steel bar machinery method of attachment mainly contains two kinds, i.e. taper thread connection method and cold-extruded platen press.Taper thread rolling method is that cutting forms screw thread to reinforcing bar by special-purpose die head threading machine, and couples together by the reinforcing bar of joint with two corresponding headband tapered threads of reinforcing bar.It is fast that this method has process velocity, price is low, and is free from environmental pollution, the influence that not changed by position in the structure, direction, nor be subjected to the influence of equipment and environment, but need use special-purpose torque spanner when reinforcing bar connects, bonding strength does not reach the A level, and labour intensity is big, efficient is low, qualification rate is difficult to guarantee, and this processing method belongs to bits processing, certainly will weaken the intensity of splice; The cold-extruded platen press is directly to connect by squeezing bushing, though make the performance of its steel bar connecting structure be higher than the steel bar connecting structure of taper thread connection method, the cold-extrusion technology complexity, process velocity is slow, and is bigger to the pollution of environment, thereby these two kinds of process potassium hydroxides.In addition, also having a kind of is smear metal screw thread method, and smear metal screw thread method is taked first upset reinforcing rebar termination, and back machining screw though it can improve the intensity that is threaded, owing to need to increase manufacturing procedure, has increased the diameter of joint again, and cost is increased.For this reason, but designers are seeking the rapid processing screw thread, and can improve screw strength, can reduce the screw thread steel connection method of its cost again.
In disclosed China Patent No. ZN90205388.4 " the dual-purpose die head threading machine of reinforced bar straight thread ", disclosed a kind of rotatable copying cutting head of in thread cutting mechanism, having settled, in this copying cutting head setting-in one group of screw thread cutting knife, borrow the depth of cut of this copying cutting head with control screw thread cutting knife, just can be according to the size specification of bar diameter, can a feed or feed several times process the screw termination, crudy is good, progress is fast, and be convenient to use at the construction field (site), but it by relying on the screw thread cutting knife to cut screw thread at steel bar end, will inevitably have influence on the intensity of threaded end fully.
The purpose of this utility model be to provide a kind of processing with is connected, steel bar end be not damaged, corresponding can it be subjected to do under the force intensity Straight thread screw rolling machine of rolled thread such as straight thread, taper thread in raising.
The purpose of this utility model is achieved through the following technical solutions: a kind of Straight thread screw rolling machine, comprise posture base, motor, reductor, reducer pedestal, bearing frame, milled head, by tool rest, blade, square hole body with decide cutting head, location workpiece, grip vice, the connecting ring that diameter ring etc. is formed, wherein, milled head comprises:
One core body installation sleeve, the profile of this core body installation sleeve is stepped, is divided into bigger protheca portion of external diameter and footpath less back cover portion, is provided with some rectangles rank groove on the protheca portion inner peripheral surface in uniform way;
One core body, the profile of this core body is stepped, be axially arranged with central shaft hole, on its preceding rank portion side face, radially be provided with some knife rest holes of interpenetrating, on rank portion side face thereafter, be provided with an axis hole radially, core body is co-axially mounted in the core body installation sleeve, and rank portion is connected by the shaft of axis hole and reductor thereafter;
Some hob heads, each hob head have at the bottom of one columniform and two and frame at the bottom of integrated, the support that is oppositely arranged, a hole is set on each support, and two holes are in the same center line, and hob head can be installed in the knife rest hole of core body movably forward and backward;
Some cylindrical die rolls, each this cylindrical die roll is provided with centre bore, and by axle rotationally frame be contained on the support of hob head.
Straight thread screw rolling machine as previously discussed, wherein, the interior rectangle rank groove bottom land of described core body installation sleeve respectively is provided with an open-work, respectively being provided with a cross section on the free end at the bottom of the described hob head frame is semicircular cotter way, milled head also comprises some roller bolts and some diameter cushion blocks, described roller bolt is embedded in the cotter way separately, the bottom land of rectangle rank groove in described diameter cushion block is installed in by bolt, under core body was installed on situation in the core body installation sleeve, the roller bolt of being adorned on the hob head rolled with the upper surface of diameter cushion block and contacts.
Straight thread screw rolling machine as previously discussed, wherein, the back cover portion of described core body installation sleeve is provided with external screw thread, and described connecting ring is the annulus that has internal thread, and described core body installation sleeve is rotatable and be installed on the bearing frame movably forward and backward by connecting ring.
Straight thread screw rolling machine as previously discussed, wherein, axially be provided with separately on the hole wall in each knife rest hole of core body two with the symmetrical local pin-and-hole along the plane that center line is done, radially be provided with a pair of outstanding pin on the side face at the bottom of the frame of each hob head relatively, after hob head is installed in the knife rest hole of core body, its outstanding pin inserts the local pin-and-hole of core body, and by spring and pin hob head flexibly is fixed in the knife rest hole, and each cylindrical die roll surrounds an equilateral geometry.
Straight thread screw rolling machine as previously discussed, wherein, the end face intersection area of the knife rest hole of core body and preceding rank portion forms an opening less than the knife rest bore dia.
Straight thread screw rolling machine as previously discussed wherein, respectively is provided with screw on the end face between the opening of the preceding rank of core body portion, and the square hole body of described cutting head is installed on the end face of the preceding rank of core body portion by screw.
Straight thread screw rolling machine as previously discussed, wherein, the end face of the protheca portion of core body installation sleeve is provided with screw, described cutting head decide the diameter ring is installed in the core body installation sleeve by screw front end.
Straight thread screw rolling machine as previously discussed, wherein, the knife rest hole has three, hob head, cylindrical die roll, roller bolt and diameter cushion block respectively to be three.
The utility model Straight thread screw rolling machine is by to one group of adjustable cylindrical die roll and carry out the control of diameter, and the location makes cylindrical die roll go out the screw thread of certain-length, certain specification, a constant pitch in workpiece (reinforcing bar) end rolling.This moment, the strength character of this section screw thread also obtained corresponding raising because end reinforced being forced to is out of shape, and its material becomes tightr, and it is thinner that lattice becomes, and intensity and hardness improve simultaneously.Again because it belongs to ELEMENTARY INTRODUCTION TO NON, so bonding strength substantially exceeds strength of parent.Drive the blank cutting mechanism by rotating mechanism, to the cutting of reinforcing bar blank, adopt the tetanic technology that are threaded such as gear hobbing type, carry out the rolling and processing moulding to end reinforced, effect by cylindrical die roll, on the one hand, roll extrusion is rolled into required screw thread form to reinforcing bar, realizes ELEMENTARY INTRODUCTION TO NON, on the other hand, because of the rolling and processing sclerosis, the hardness of thread portion, intensity are increased, connect strong even superpower effects such as back and mother metal thereby reach this joint.
Utilize the utility model, can realize gear hobbing type full strength steel bar straight thread interconnection technique, it is easy to have the processing simple operations, stable performance, connecting does not need torque spanner, and available ordinary cartridge just can solve the rotatable advantages such as connection of reinforcing bar, satisfies the requirement of A level joint performance in the JGJ107-96 rules fully, and joint all breaks on mother metal when destroying.During connection, only need will special straight screw sleeve to be connected on the end after reinforcing bar is processed, can finish the connection of reinforcing bar with common wrench.
By the following examples and in conjunction with the accompanying drawings effect of the present utility model and purpose are described further:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the perspective exploded view of cutting mechanism and rolling mechanism among Fig. 1;
Fig. 3 is the structural representation of cutting head among Fig. 1;
Fig. 4 is the structural representation of milled head among Fig. 1;
Fig. 5 among Fig. 1 along the intention of analysing and observe that A-A did, the assembled condition between some parts of expression milled head.
See also shown in Figure 1; a kind of Straight thread screw rolling machine; comprise a posture base 1; motor 2; reductor 3; reducer pedestal 4; one connecting ring 5; one bearing frame 6; one milled head 7; one cutting head 8; one location workpiece 9; one grip vice 10; control apparatus circuit and cooling system; wherein; posture base 1 is by as the frame 11 of scaffold be positioned on the frame 11; support 12 as workbench is formed; usually be provided with the cooling fluid supply pump 15 and the tank for coolant of cooling system in the frame 11; the control panel 13 of band control button is arranged the installed in front of support 12 and to being installed in the operating grip 14 that assembly on the workbench or equipment are handled, the platform of the end face of support 12 is provided with the guide rail (not shown).
The motor 2 of this screw-rolling machine, reductor 3, reducer pedestal 4, connecting ring 5 and bearing frame 6 can adopt those the conventional models used or structure, for example motor 2 can adopt squirrel-cage motor, reductor 3 can adopt hypocycloid equidistant curve reduction box or cycloidal pinwheel reduction box, to improve transmission efficiency, motor 2, reductor 3 and reducer pedestal 4 generally are fixedly mounted on operating personnel's support 12 platforms on right side, and motor 2 and reductor 3 are formed be in transmission connection mutually; Bearing frame 6 is perpendicular framves of a band circular hole, plays the length position-limiting action, so be installed on the platform of reducer pedestal 4 certain distances; Connecting ring 5 is tapped rings, for the following connection effect that will illustrate.
See also shown in Fig. 2 and 3, milled head 7 comprises a core body installation sleeve 71, one core body 72, three hob heads 73, three cylindrical die rolls 74, three roller bolts 75 and three diameter cushion blocks 76, wherein, the profile of core body installation sleeve 71 is stepped, big or small corresponding protheca portion 711 and the back cover portion 712 of being divided into external diameter, axially be provided with three rectangle rank grooves 713 on protheca portion 711 inner peripheral surfaces in uniform way, in the present embodiment, each rectangle rank groove is made of three level rank that enlarge gradually from the bottom land to the inner peripheral surface, and be provided with an open-work 714 at kerve, this open-work preferably is arranged to the through hole along axially extended strip, and protheca portion 711 respectively is provided with a screw 715 at the front end face that is positioned at 713 of rectangle rank grooves between two-phase; Back cover portion 712 is provided with external screw thread 716 on outer peripheral face.
The profile of core body 72 also is stepped, big or small corresponding preceding core, SMIS and the back core 721,722 and 723 of being divided into external diameter, be axially arranged with the centre bore 724 of perforation, on the outer peripheral face of its preceding core 721, radially be provided with three knife rest holes 725 of interpenetrating, be laid with three screws 727 on the front end face; On the outer peripheral face of core 723 thereafter, be provided with a pin-and-hole (not shown) radially, fixing as axle; The knife rest hole 725 of core body is intersected with the end face of preceding core 721 and is formed an opening 726 less than diameter, and preceding core 721 axially is arranged with a pair of local pin-and-hole 728 along the hole wall in knife rest hole 725.Described core body 72 is co-axially mounted in the core body installation sleeve 71, and each knife rest hole 725 is respectively relative with rectangle rank groove 713.
Hob head 73 comprises at the bottom of one columniform that 731 and two are positioned at the bottom of the frame on 731 1 sides and the support 732 that is oppositely arranged in one-body molded mode, and the hole 733 that hole 733, two supports are set on each support 732 is in the same center line.In addition, hob head 73 is cut on outer peripheral face and is established a plane 734, the width on this plane equates substantially with the width of the opening of core body 726,734 rear portion is provided with a tension force stopper slot 735 parallel with axis on the plane, the keeper of can planting in this tension force stopper slot, to reach spacing (the placing restrictions on of displacement) that hob head 73 moves under the tension force effect, 731 to be provided with a cross section at free end be semicircular cotter way 737 at the bottom of the frame of hob head 73, also radially be provided with outstanding outstanding pin 736 on 731 at the bottom of the frame, should outstanding pin with done the plane symmetry setting by hob head 73 axis, and be positioned on the same axis.In the knife rest hole 725 of the core body 72 that hob head 73 is installed in, and make the plane 734 on it corresponding with the opening 726 of core body 72, outstanding pin 736 on it inserts in the local pin-and-hole 728, but and is fixed to the flexible adjustment mode with antero posterior axis by tension spring 77 and spring catch 78.Be installed in the core body installation sleeve 71 under the situation at described core body 72,731 is relative each other with the rectangle rank groove 713 of core body installation sleeve 71 at the bottom of described.
Cutting head 8 comprises that a square hole body 81, four tool rests 82, four blades 83, a tension spring 84, a bearing pin 85, a nut 86, certain diameter ring 87, diameters adjust piece 88, and adjust piece installing rack 89, a roller 80 and a slide block 90, wherein, the center of square hole body 81 is provided with square hole 811, be laid with three screw 727 corresponding open-works 812 with core body in the plane, be provided with a square opening 813 and one and the circular hole 814 that connects of square opening 813 on outer peripheral face, described square hole body 81 can be installed on the front end face of core 721 before the core body by screw; Tool rest 82 is an angle square shape, is packed in separately on 811 4 interior angles of square hole of square hole body 81; Blade 83 is installed on four tool rests 82 separately, and forms actiniform rotary cutter in the square hole 811 of square hole body 81.
Slide block 90 is a quadrangle spare, has a cylinder in the top, and the lower end has a raised line, is installed in the square opening 813 of square hole body 81, and raised line then contact descends on one of tool rest 82 at it; Roller 80 rotatable being installed on the cylinder of slide block 90; Tension spring 84, bearing pin 85 and nut 86 are installed in the circular hole of square hole body 81 successively, so that tension spring 84 is closely against slide block 90.
Decide diameter ring 87 and on inner peripheral surface, be provided with a groove 871,715 corresponding with each screw of core body installation sleeve 71 in the plane, be laid with three open-works 872, can be installed on the core body installation sleeve 71 by screw so decide diameter ring 87, and the square hole body 81 before the ccontaining core body 72 of the mode of enclosing with ring; Adjusting piece installing rack 89 is the square plate, is installed in the groove 871 of deciding diameter ring 87; It is rectangular that diameter is adjusted piece 88, be installed in and adjust piece installing rack 89 times, its bottom contacts with 80 one-tenth separate types of roller of square hole body 81 tops, like this, when the processing screw rod, can be according to its specification of formulating, adjust piece 88 by adjusting diameter, should be cut to diameter desired, polished rod in advance before controlling the screw rod rolled thread.
This screw-rolling machine is before operation, select to adjust the tool rest 82 and the diameter cushion block 76 of cutting head earlier by processing type and specification, workpiece (reinforcing bar blank) is clipped on the grip vice 10, after location workpiece 9 is done the length location, press the button on the control panel 13, this button primary control program is driven main motor for opening cooling fluid supply pump 15 1.
After the main motor running, turn operating grip 14, so that cutting head 8 and milled head 7 are together towards the workpiece feeding, cutting head 8 is cut workpiece in advance, when being cut to bearing frame 6 and running into the nut of location workpiece 9, diameter is adjusted piece 88 and is separated with roller 80 automatically, and at this moment four tool rests 82 are under the effect of spring, automatically open cutter by slide block 90, milled head 7 continues to march forward to (at this moment the reinforcing bar blank forms required polished rod by cutting head 8 cuttings) when opening cutter.Polished rod begins to roll out required screw thread under the effect of milled head 7, milled head 7 continues rotation simultaneously, and this moment, 6 of bearing frames rotated not feeding, when milled head 7 is fed into the thread gage measured length under the effect of bearing frame 6, the roller bolt 75 of hob head 73 separates with diameter cushion block 76, hob head is upspring automatically under the effect of spring 77 and outstanding pin 736 and is opened cutter, finishes the screw thread processing of workpiece.For this reason, utilize this screw-rolling machine can process that reinforcing bar is straight, the screw and the standing screw through walls of taper thread.
Claims (8)
1. Straight thread screw rolling machine, comprise posture base, motor, reductor, reducer pedestal, bearing frame, milled head, by tool rest, blade, square hole body with decide cutting head, location workpiece, grip vice, the connecting ring that diameter ring etc. is formed, it is characterized in that: milled head comprises:
One core body installation sleeve, the profile of this core body installation sleeve is stepped, is divided into bigger protheca portion of external diameter and footpath less back cover portion, is provided with some rectangles rank groove on the protheca portion inner peripheral surface in uniform way;
One core body, the profile of this core body is stepped, be axially arranged with central shaft hole, on its preceding rank portion side face, radially be provided with some knife rest holes of interpenetrating, on rank portion side face thereafter, be provided with an axis hole radially, core body is co-axially mounted in the core body installation sleeve, and rank portion is connected by the shaft of axis hole and reductor thereafter;
Some hob heads, each hob head have at the bottom of one columniform and two and frame at the bottom of integrated, the support that is oppositely arranged, a hole is set on each support, and two holes are in the same center line, and hob head can be installed in the knife rest hole of core body movably forward and backward;
Some cylindrical die rolls, each this cylindrical die roll is provided with centre bore, and by axle rotationally frame be contained on the support of hob head.
2. Straight thread screw rolling machine according to claim 1, it is characterized in that: the interior rectangle rank groove bottom land of described core body installation sleeve respectively is provided with an open-work, respectively being provided with a cross section on the free end at the bottom of the described hob head frame is semicircular cotter way, milled head also comprises some roller bolts and some diameter cushion blocks, described roller bolt is embedded in the cotter way separately, the bottom land of rectangle rank groove in described diameter cushion block is installed in by bolt, under core body was installed on situation in the core body installation sleeve, the roller bolt of being adorned on the hob head rolled with the upper surface of diameter cushion block and contacts.
3. Straight thread screw rolling machine according to claim 1, it is characterized in that: the back cover portion of described core body installation sleeve is provided with external screw thread, described connecting ring is the annulus that has internal thread, and described core body installation sleeve is installed on the bearing frame movably forward and backward by rotatable the reaching of connecting ring.
4. Straight thread screw rolling machine according to claim 1, it is characterized in that: axially be provided with separately on the hole wall in each knife rest hole of core body two with the symmetrical local pin-and-hole along the plane that center line is done, radially be provided with a pair of outstanding pin on the side face at the bottom of the frame of each hob head relatively, after hob head is installed in the knife rest hole of core body, its outstanding pin inserts the local pin-and-hole of core body, and hob head flexibly being fixed in the knife rest hole by spring and pin, each cylindrical die roll surrounds an equilateral geometry.
5. Straight thread screw rolling machine according to claim 1 is characterized in that: the end face intersection area of the knife rest hole of core body and preceding rank portion forms an opening less than the knife rest bore dia.
6. Straight thread screw rolling machine according to claim 1 is characterized in that: respectively be provided with screw on the end face between the opening of the preceding rank of core body portion, the square hole body of described cutting head is installed on the end face of the preceding rank of core body portion by screw.
7. Straight thread screw rolling machine according to claim 1 is characterized in that: the end face of the protheca portion of core body installation sleeve is provided with screw, described cutting head decide the diameter ring is installed in the core body installation sleeve by screw front end.
8. according to each described Straight thread screw rolling machine of claim 1 to 7, it is characterized in that: the knife rest hole has three, hob head, cylindrical die roll, roller bolt and diameter cushion block respectively to be three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99239919 CN2396917Y (en) | 1999-10-14 | 1999-10-14 | Straight thread screw rolling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99239919 CN2396917Y (en) | 1999-10-14 | 1999-10-14 | Straight thread screw rolling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2396917Y true CN2396917Y (en) | 2000-09-20 |
Family
ID=34027085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99239919 Expired - Fee Related CN2396917Y (en) | 1999-10-14 | 1999-10-14 | Straight thread screw rolling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2396917Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896255A (en) * | 2012-08-23 | 2013-01-30 | 南宁哈威尔紧固件有限公司 | Machining device of square head screw rod and machining method thereof |
| CN103817382A (en) * | 2012-11-16 | 2014-05-28 | 刘全涛 | Double-shaft threading machine |
-
1999
- 1999-10-14 CN CN 99239919 patent/CN2396917Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896255A (en) * | 2012-08-23 | 2013-01-30 | 南宁哈威尔紧固件有限公司 | Machining device of square head screw rod and machining method thereof |
| CN103817382A (en) * | 2012-11-16 | 2014-05-28 | 刘全涛 | Double-shaft threading machine |
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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 |