Pipeline connects the axial screw-rolling machine of external screw thread
The present invention relates to the process equipment that a kind of rolling screw-threads is shaped, particularly a kind of being tightly connected with the process equipment of the axial rolling forming of pipeline external screw thread.
The gas thread connector is flexible, easy for installation owing to using, thereby obtains extensive use in middle small-caliber pipeline connects.Existing metallic conduit end external screw thread adopts machining to form usually.Make not only that external screw thread precision cumbersome but also that process is low, fineness is poor.Especially cut external screw thread on tube wall, its metal inside organizes streamline to be cut off, and the tube wall attenuation causes performance decrease such as pipe joint bonding strength, and pipeline run, drip, leak phenomenon usually easily takes place during use.For overcoming above-mentioned shortcoming, roll extrusion pipeline external screw thread technology has been proposed, it utilizes the metal plastic deformation principle, adopts the processing of rolling forming technology to be tightly connected and uses the pipeline external screw thread, and the external threaded surface that processes is level and smooth, even, the hardness height.Because its metal inside tissue fibers streamline is not cut off and is continuous shape, by the extruding invigoration effect, formed fine and close metal strengthening layer at metal surface, make the intensity at external screw thread position, switching performance and serviceability are effectively improved and are improved, compare with machining pipe joint screw thread, accuracy of thread and surface strength have been improved, reduced the screw thread fitting allowance, solved pipe joint place race in the use preferably, emit, drip, the leakage problem, the performance that is tightly connected improves greatly, yet does not also have at present a kind ofly can rapidly and efficiently process the externally threaded machining equipment of above-mentioned pipeline.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of simple in structure, and use is connected the axial screw-rolling machine of external screw thread with the pipeline of good processability.
The present invention for the technical scheme that problem adopted of the above-mentioned proposition of solution is: include support 17, be installed in the main spindle box 5 of upper part of the frame one side, the main spindle box front-end configuration has chuck 6, be provided with slide carriage 14 at upper part of the frame corresponding to the opposite side of main spindle box, slide carriage and axial guide rod 15 or guide rail phase configuration, above slide carriage, be installed on rolled thread wheel disc 10 with the main shaft concentric, it is characterized in that described rolled thread wheel disc comprises a chassis 11 that links with slide carriage bearing 12, circumferentially be laid with three adjustable seats in the end face upper edge on chassis, adjustable seats includes holder 21 and slide block 20, the slide block rear end is connected with return spring 27, and dispose locating wheel 26, locating wheel is set in the bearing pin 25 and a path transfer cam disc 22 phase configuration, the endoporus of path transfer cam disc is evenly equipped with three identical cam rails, act on mutually with the locating wheel 26 on three slide blocks, be installed on cylindrical die roll 19 by bearing pin 24, constitute an adjustable rolled thread wheel disc thus at the front end of slide block.
Press such scheme, axially guide rod or guide rail are provided with tooth bar, and dispose gear and handwheel 16 on slide carriage, constitute hand mobile slide carriage.
The present invention has following beneficial effect:
1. structure is provided with advantages of simple, and reliable working performance is stable, and is easy to operate and use;
2. processing and fabricating pipeline roll extrusion external screw thread fast and effeciently, good processability;
3. because simple in structure, so complete machine is in light weight, mobile convenient in carrying can be placed directly into the pipeline erecting bed and use processing.
4. the externally threaded formation of pipeline becomes roll extrusion by cutting, add do not have man-hour the cutting pollution-free.
Description of drawings
Fig. 1 is the structure chart of facing of one embodiment of the present of invention.
Fig. 2 is the front view of rolled thread wheel disc in one embodiment of the present of invention.
Fig. 3 is the A-A cutaway view of rolled thread wheel disc among Fig. 2.
Fig. 4 is the positive view of clamp block set in one embodiment of the present of invention.
Fig. 5 is the positive view that becomes the awl chamfer mould with clamp block set phase configuration.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described further.
As shown in Figure 1, include support 17, upper part of the frame one side is installed on main spindle box 5, the power intake of main spindle box links to each other with drive motors 3 by pulley apparatus 2, in the main spindle box front-end configuration chuck 6 is arranged, be used for clamping tubing to be processed, also can be after the backend arrangement of main spindle box chuck 4 so that the clamping of long tube material; At the upper part of the frame opposite side, be installed on two axial guide rods 15 before and after the parallel main axis center line, dispose slide carriage 14 on the guide rod, be installed on gear and handwheel 16 on the slide carriage, the tooth bar phase configuration that is provided with on the axial guide pillar of gear and front constitutes hand mobile slide carriage; Relatively main spindle box one side is installed on rolled thread wheel disc 1O with the main shaft concentric on slide carriage, the rolled thread wheel disc comprises a chassis 11 that links with slide carriage bearing 12, circumferentially be laid with three adjustable seats in the end face upper edge on chassis, adjustable seats includes holder 21 and slide block 20, the slide block rear end is connected with return spring 27, and dispose locating wheel 26, locating wheel is set in the bearing pin 25 and a path transfer cam disc 22 phase configuration, the endoporus of path transfer cam disc is evenly equipped with three identical cam rails, each cam rail is provided with 5 path transfer gears, act on mutually with the locating wheel 26 on three slide blocks, the path transfer cam disc is equipped with one handle 23, front end at slide block is installed on cylindrical die roll 19 by bearing pin 24, it is round table-like that cylindrical die roll is awl, periphery is provided with screw thread, the diameter of thread and the diameter of work of cylindrical die roll are different, cylindrical die roll is installed in slide block and opens and have certain end play in the shelves, the path transfer cam disc can drive slide block and cylindrical die roll radially moves by stirring, in order to regulate different processing diameters, come the pipe external screw thread of roll extrusion different tube diameters, constitute an adjustable rolled thread wheel disc thus.In addition, be installed on a slide 13 on the axial guide rod of back, be equipped with pivoted frame 8 on the slide, corresponding 18O ° is installed on manual cutting tool 7 and pipe wrench frame 9 on the pivoted frame, and manually cutting tool is used for the cutting to tubing; The pipe wrench frame is used for the clamping to tubing, when tubing is held on the pipe wrench frame, the rolled thread wheel disc can be installed on the chuck 6, drives the rolled thread wheel disc by chuck and rotates the gas thread of processing roll extrusion tubing termination.A side also can be provided with and be squeezed into wimble device below support, take blame for others by clamp block set 1 and hydraulic pressure and 18 to constitute, the outer cone that the clamp block set includes inner conical drogue 28 and tool shaft orientation opening groove shrinks cover 29, shrink cover by outer cone and come clamping tubing, the front end that hydraulic pressure is taken blame for others is installed the one-tenth awl chamfer mould 30 with taper hole, be used to treat the preprocessing of rolling and processing pipe front end, make the pipe front end be squeezed into taper, and then pipe is carried out externally threaded axial rolled thread processing.
Can on slide carriage, be installed on the rolled thread wheel disc of a band drive unit in addition, constitute an axial screw-rolling machine of two-way processing, can be to the external screw thread time processing shaping simultaneously at tubing two ends.