SU504624A1 - Step feed mechanism - Google Patents
Step feed mechanismInfo
- Publication number
- SU504624A1 SU504624A1 SU2051547A SU2051547A SU504624A1 SU 504624 A1 SU504624 A1 SU 504624A1 SU 2051547 A SU2051547 A SU 2051547A SU 2051547 A SU2051547 A SU 2051547A SU 504624 A1 SU504624 A1 SU 504624A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- rail
- feed mechanism
- step feed
- slider
- spring
- Prior art date
Links
Landscapes
- Seats For Vehicles (AREA)
Description
(54) МЕХАНИЗМ ШАГОВОЙ ПОДАЧИ(54) STEP FEED MECHANISM
1one
Изобретение относитс к области машиностроени , в частности .к устройствам дл шаговой подачи, и может быть использовано преимуш,ественно в машинах дл контактной точечной сварки при шаговой подаче стола.The invention relates to the field of mechanical engineering, in particular, to devices for step feeding, and can be used mainly in machines for contact spot welding with step feeding of a table.
Известен механизм шаговой подачи, содержащий привод, рейку, несущую изделие, и смонтированные в общем корпусе лолзун с собачкой.The known mechanism of step feed, containing the drive rail, carrier, and mounted in a common housing Lolzun with a dog.
Недостатком известного механизма вл етс отсутствие фиксированного останова рейки, вследствие чего из-за наличи значительного ее выбега иод действием сил инерции применение ее с пневмоприводом невозможно без дополнительных устройств, обеспечивающих торможение или останов.A disadvantage of the known mechanism is the absence of a fixed stopping of the rail, as a result of which, due to the presence of a significant run-up of it, by the action of inertial forces, its use with pneumatic actuator is impossible without additional devices providing braking or stopping.
Целью изобретени вл етс повышеиие точности подачи на заданный шаг.The aim of the invention is to improve the feed accuracy by a given step.
Это достигаетс тем, что механизм снабжен установленным в корпусе с возможностью вертикального перемещени и подпружиненным от пего фиксатором, взаимодействующим одним концом с ползуном при его перемещении, а другим концом с рейкой. Наличие подирукииеииого фиксатора позвол ет в конце рабочего хода механизма охватить очередной зуб рейки с двух сторон и этим остаиовить рейку в фиксироваииом положепии.This is achieved by the fact that the mechanism is provided with a retainer installed in the housing with the possibility of vertical movement and spring-loaded from it, interacting with one end with the slider as it moves, and the other end with the rail. The presence of the lock pin allows, at the end of the working stroke of the mechanism, to embrace the next tooth of the staff from two sides and thereby stop the staff in a fixed position.
На фиг. 1 схематично изображен предлагаемыи механизм, продольный разрез; на фиг. 2 - разрез по А - А на фиг. 1.FIG. 1 schematically shows the proposed mechanism, a longitudinal section; in fig. 2 shows a section along A-A in FIG. one.
Механизм шаговой подачи дл контактных точечных машин содержит корпус 1, переднююThe step feed mechanism for contact point machines comprises a housing 1, a front
крышку 2, ползун 3 с собачкой 4, установленной на оси 5, верхнюю крышку 6, иневмоциvlиидp 7 и зубчатую рейку 8, крепление которой предполагаетс к подвижному столу сварочной машины.the cover 2, the slider 3 with the pawl 4 mounted on the axis 5, the top cover 6, the inverter 7 and the rack 8, which is supposed to be fixed to the movable table of the welding machine.
Ползун 3 выполиен с выступающим вперед хвостовиком, имеющим наклонный скос иод углом около 45°. В верхней части ползуна 3 в выемке закреплена собачка 4, снабжоша пружиной 9, служащей дл приведени ее вThe slider 3 is made with a protruding shank with a sloping iodine angle of about 45 °. In the upper part of the slider 3, a doggie 4 is fixed in the recess, supplied with a spring 9, which serves to bring it into
рабочее положение через окио в верх)ей крышке 6. Виит 10 предназначен дл ограннчеии поворота собачки 4 под действием пружииы 9. Собачка 4 снабжена также роликом И, который, взаимодейству с иаклоииымworking position through the upper side of the cover 6). Viit 10 is designed to limit the rotation of the pawl 4 under the action of the spring 9. The pawl 4 is also equipped with an AND roller, which, in conjunction with
скосом верхией крышки G ири холостом ходе собачки 4, иозвол ет последней занимать утоплеииое (нерабочее) положение.beveling the top of the cover G and the idling of the pawl 4, it allows the latter to occupy a drowning (idle) position.
Верхн крышка 6 в передней части выиолиеиа утолщсниой и с капалом пр моугольной формы, в котором размещен фиксатор 12, ипжний конец которого имеет наклонный скос, взаимодействующий с ползуиом 3.The top cover 6 in the front part is thickened and with a rectangular-shaped drip, in which the latch 12 is placed, and the end end of which has an inclined bevel that interacts with the slide 3.
В иижием положении фиксатор 12 удерживаетс плоской пружииой 13, закрепленной наIn its position, the latch 12 is held by a flat spring 13 fixed to
верхней крышке 6.top cover 6.
Фиксатор может обеспечивать фиксированный останов храповой рейки даже при очень малых рассто ни х между ее зубь ми.The lock can provide a fixed stopping of the ratchet rail even at very small distances between its teeth.
Предлагаемый механизм шаговой подачи работает следующим образом.The proposed mechanism for step feed works as follows.
В исходном положении поршень пневмоцилиндра 7 отведен вправо, собачка 4 занимает утопленное положение, фиксатор 12 под действием веса и пружины 13 опущен вниз.In the initial position, the piston of the pneumatic cylinder 7 is retracted to the right, the pawl 4 occupies a recessed position, the retainer 12 under the action of weight and the spring 13 is lowered down.
При ходе поршн пневмоцилиндра 7 и ползуна 3 справа-налево собачка 4 под действием пружины 9 поднимаетс и своим носком захватывает зуб храповой рейки 8, толка последнюю влево. В конце рабочего хода ползун 3, взаимодейству хвостовиком с наклонным скосом фиксатора 12 по принципу клина , заставл ет последний подниматьс , захватыва работающий зуб рейки 8 с переднейDuring the course of the piston of the pneumatic cylinder 7 and the slide 3 from right to left, the pawl 4 rises under the action of the spring 9 and with its toe captures the tooth of the ratchet rail 8, pushing the last to the left. At the end of the working stroke, the slider 3, interacting with the shank with the inclined bevel of the retainer 12 according to the wedge principle, causes the latter to rise, grasping the working tooth of the staff 8 from the front
33
1313
стороны и ограничива движение рейки вперед . При отходе ползуна 3 назад фиксатор 12 под действием пружины 13 опускаетс и цикл повтор етс . side and limit movement of the slats forward. When the slide 3 retracts back, the latch 12 is lowered by the action of the spring 13 and the cycle is repeated.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2051547A SU504624A1 (en) | 1974-07-30 | 1974-07-30 | Step feed mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2051547A SU504624A1 (en) | 1974-07-30 | 1974-07-30 | Step feed mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU504624A1 true SU504624A1 (en) | 1976-02-28 |
Family
ID=20593454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2051547A SU504624A1 (en) | 1974-07-30 | 1974-07-30 | Step feed mechanism |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU504624A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4208567A (en) * | 1978-12-11 | 1980-06-17 | The Babcock & Wilcox Company | Weldable instrumentation installation tool |
-
1974
- 1974-07-30 SU SU2051547A patent/SU504624A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4208567A (en) * | 1978-12-11 | 1980-06-17 | The Babcock & Wilcox Company | Weldable instrumentation installation tool |
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