SU764781A1

SU764781A1 - Tube-bending machine

Info

Publication number: SU764781A1
Application number: SU772491806A
Authority: SU
Inventors: Геннадий Николаевич Тимошинский; Петр Федорович Казанцев; Александр Георгиевич Бошков
Original assignee: Бийский Котельный Завод
Priority date: 1977-06-02
Filing date: 1977-06-02
Publication date: 1980-09-23

Description

Изобретение относитс к обработке металлов давлением, в частности к станкам, осуществл ющим многоколенную гибку труб в голодном состо нии по принципу наматывани с применением лорна и каретки,,и может быть использовано на котельных заводах, а также на предпри ти х судостроительной промышленности и химического машиностроени .The invention relates to the processing of metals by pressure, in particular, to machines that carry out multi-knee pipe bending in a hungry condition on the principle of winding using a horizontal and carriage, and can be used in boiler plants, as well as in the shipbuilding industry and chemical engineering industry. .

Известен трубогибочный станок, содержащий установленные на суанине гибочную головку, направл ющую с кареткой, дорновытаскиватель, а также механизм настройки на радиус гиба l.A pipe bending machine is known, which has a bending head installed on a suanine, a guide with a carriage, an extension tool, and a bending mechanism for a bending radius l.

Недостаток станка заключаетс в том, что не обеспечиваетс надежность его работы.The disadvantage of the machine is that it does not provide reliability of its work.

Дл повышени надежности и удобства обслуживани механизм настройки на радиус гиба снабжен установленной на шлицевом конце винта кулачковой полумуфтой и плунжерно-реечным двигателем, шестерн которого расположена на гладком участке винта и входит в зацепление своими торцовыми зубь ми с полумуфтой, а также св занной с винтом руко ткой дл To improve reliability and ease of maintenance, the bending radius tuning mechanism is equipped with a cam coupling half mounted on the splined end of the screw and a plunger rack and pinion motor, the gear which is located on the smooth portion of the screw and engages with its half teeth and also connected with the screw for

поджима полумуфты к шестерне, при этом гайка шарнирно св зана с направ-. л ющей.pressing the coupling half to the gear, while the nut is pivotally connected to the direction-. luyuyu.

На фиг.1 схематично изображен предлагаемый станок; на фиг. 2 - то же, вид в плане;на фйг.З - разрез А-А на фиг.1;на фиг. 4 - разреэ Б-Б на фиг.1.Figure 1 schematically shows the proposed machine; in fig. 2 is the same, in plan view; FIG. 3 is section A-A in FIG. 1. FIG. 4 - resolv BB in FIG.

К гибочной головке 1, имеющей гибочный шаблон 2, механизм зажима 3 To bending head 1 having bending template 2, clamping mechanism 3

10 и прижима 4, примыкает направл юща 5, несуща каретку 6 и дорновытаскиватель 7.10 and the clamp 4 adjoins the guide 5 carrying the carriage 6 and the take-out 7.

Передн часть направл ющей 5Front of guide 5

с при помощи цапфы-гайки 8 шарнирно соединена с салазками 9 переднего суппорта 10. Основанием 11 передний суппорт 10 крепитс к стойке 12, котора соединена с корпусом 13 гибочной головки 1. На основании .1 With the help of a pin-nut 8, it is pivotally connected to the slide 9 of the front caliper 10. With the base 11, the front caliper 10 is fastened to the post 12, which is connected to the body 13 of the bending head 1. On the base .1

Claims

20, a bearing housing 14 and a plunger-rack motor 15 are installed. The plunger-rack engine 15 consists of a rack-plunger pair 16 which is in constant engagement with gear 17, which is loosely mounted on the smooth part of the screw 18. The end of the screw 16 has a splined surface for the half coupling 19, which, when the shinte 20 is compressed with its end cams, enters the split with the corresponding end cams of the gear 17. The pin 8 in the lower part has a threaded hole cooperating with the screw 18. The rear part of the guide 5 is rigidly connected to the slide 21 of the rear caliper 22 mounted on the rack 23. The guide 5 and the slide 21, with the aid of a pin-nut 24, are connected with a screw 25 screwed into the threaded hole of the latter. The free end of the screw 25 passes through the bearing housing 26, which is connected by an axis 27 of the hinge with the base of the rear caliper 22 and the post 23. The rotation of the bending template of the implement by means of a hydraulic cylinder and a chain transmission; drive mechanisms for clamping and clamping - hydraulic cylinder; the groove is not shown on the drawing. The machine works as follows. The pipe 28 is inserted between the sponge of the clamping mechanism 3 and the tray of the pressing mechanism 4 on one side and the bending template 2 on the other side into the latter’s arms and, putting it on the mandrel 29, is pushed into the clamp of the carriage 6. After securing the pipe 2B, the carriage b moves The side of the Dorovydaskivatel 7, tightens the pipe 28 onto the mandrel 29 to the required length and stops with. The clamping mechanism presses the pipe 28 to the straight-line section of the bending template 2. At the same time, the tray, the pressing mechanism moves until the pipe 28 is touched. Pre-pusher 7 sends the mandrel 29 to its original position for the flexible pipes. By turning the bending template, the bending process is carried out by winding the pipe on the bending template. When the bending angle is reached, the rotation of the bending template stops, Dorn 29 is taken out of the bending area, the clamping mechanism 3 releases the pipes, the clamping mechanism tray 4 is retracted from the pipe, which sprang out of the groove of the bending template 2, which returns to its original position and carries along a clamping mechanism. At the same time, the plunger-rack engine 15, turning the gear 17 with the end cams of the latter and the coupling half 19, rotates the screw 18 and, thereby moving the slide 9, retracts the front part of the guide 5 with the carriage 6 on the bending center

2. As a result. The guide 5 and the carriage 6 retract between the pipe 28 and the groove of the bending template 2, a gap is formed, which is sufficient to freely push the pipe 28 in the axial direction. Carriage 6 with pipe 28 is then fed by the amount of the straight-line portion and the cycle is repeated. Due to the articulation of the pin-nut 24 with the guide 5 and the slide 21 of the rear support 22, as well as the bearing housing 26 with the base of the rear support 22 and the frame 23 and the constructive clearance between the slide 21 and the guide of the rear support 22, the required swing of the guide at the moment outlet-supply its front. The adjustment of the bender to another bend radius is carried out by moving the slide 9 and 21, respectively, of the front 10 and rear 22 calipers in the desired direction. For this, by loosening the screw 20, pull the end cams of the half coupling 19 out of engagement with the corresponding cams of the gear wheel 17 and rotate the coupling half 19 in the desired direction. After installation, the bend radius 20 needs to be fixed. The transverse movement of the rear part of the guide 5 is carried out by rotating the screw 25. Formula of the invention A tube bending machine comprising a bending head mounted on a frame, a guide with a carriage, a pusher, and a bend radius adjustment mechanism having a nut with a nut different TTI, with the goal of increasing reliability and ease of maintenance, the bending radius tuning mechanism is equipped with a cam half coupling and a plunger-reechnacer mounted at the end of the screw end It is worn on the smooth section of the screw and engages with its end teeth with the coupling half, as well as the handle connected with the screw for pressing the coupling half to the gear wheel, while the nut is hinged to the guide. Information sources taken into account during examination 1 USSR author's certificate 183034, cl. B 21 D 7/02, 1965.