SU874288A2

SU874288A2 - Chamfering device

Info

Publication number: SU874288A2
Application number: SU782670479A
Authority: SU
Inventors: Феликс Николаевич Канареев; Сергей Петрович Машин; Александр Олегович Харченко
Original assignee: Севастопольский Приборостроительный Институт
Priority date: 1978-10-03
Filing date: 1978-10-03
Publication date: 1981-10-23

Description

Изобретение относится к станкостроению и может быть иёпользовано для резьбонарезания одновременно со снятием фаски.The invention relates to machine tool industry and can be used for threading simultaneously with chamfering.

По основному авт. св. № 740422 известно устройство для снятия фаски одновременно с резьбонарезанием посредством метлика, установ- ⁵ленного на шпинделе, и подпружиненного резца, которое снабжено установленным на пиши-. деле с возможностью осевого перемещения резцедержателем с кольцом и размешенной параллельно оси метчика стойкой с упором, смонтированной с возможностью контакта с кольцом HJОднако известное устройство характеризуется относительно низким качеством обработки.According to the main author. St. № 740 422 discloses an apparatus for chamfering simultaneously by threading Metlika, lennogo ⁵ installed on the spindle, and a spring-loaded cutter which is provided mounted on pishi-. in fact, with the possibility of axial movement of the tool holder with a ring and a rack with a stop placed parallel to the axis of the tap, mounted with the possibility of contact with the HJ ring, however, the known device is characterized by a relatively low quality of processing.

Цель изобретения — повышение качества обработки. ^,s The purpose of the invention is to improve the quality of processing. ^{, s}

Поставленная цель достигается тем, что устройство снабжено размещенным между шпинделем и стойкой рычагом, одно плечо которого контактирует с резцедержателем, а другое — с упором на стойке. ²³ This goal is achieved by the fact that the device is equipped with a lever located between the spindle and the rack, one shoulder of which is in contact with the tool holder, and the other with emphasis on the rack. ²³

Кроме того, устройство снабжено размещенным- на шпинделе копиром для взаимодействия с резцедержателем.In addition, the device is equipped with a copier placed on the spindle for interaction with the tool holder.

На фиг. 1 изображена конструкция устройства для снятия фаски; на фиг. 2 — устройство, вид сверху; на фиг. 3 - вид А на фиг. 2; на фиг. 4 — сечение Б-Б на фиг. 1.In FIG. 1 shows a design of a device for chamfering; in FIG. 2 - device, top view; in FIG. 3 is a view A in FIG. 2; in FIG. 4 is a section BB in FIG. 1.

Устройство содержит в корпусе 1 станка пиноль 2, к которой прикреплен кронштейн 3, на кронштейне 3 между шпинделем 4 и стойкой 5 размещен качающийся рычаг 6, на кронштейне находятся также шток 7 с пружиной 8 и ролик 9. В шпинделе 4 в цанговом зажиме закреплен метчик 10. На шпинделе 4 с возможностью осевого перемещения расположен корпус 11 с резцедержателем 12, несущим резец 13. Резцедержатель 12 при помощи пружины 14 контактирует с копиром 15, закрепленным на шпинделе 4. Кольцо 16 корпуса 11 с резцедержателем связано с одним плечом рычага 8, а другим плечом рычаг контактирует с упором 17 на стойке 5. Упор 17 и упор 18 ограничительный зафиксированы в стойке 5 винтами 19 и 20. К стойке 5 прикреплен рычаг 21, взаимодействующий с фиксатором 22 при помощи пружины 23. Фиксатор 22 и неподвижное основание стойки 24 установлены в корпусе 1.The device comprises a pinole 2 in the machine body 1, to which the bracket 3 is attached, a swinging lever 6 is placed on the bracket 3 between the spindle 4 and the rack 5, the rod 7 with the spring 8 and the roller 9 are also located on the bracket. A tap is fixed in the collet 4 in the spindle 4 10. On the spindle 4, with axial movement, the housing 11 is located with a tool holder 12 carrying a tool 13. The tool holder 12 is in contact with a copier 15 mounted on the spindle 4 by means of a spring 14. The ring 16 of the housing 11 with the tool holder is connected to one arm of the lever 8, and the other shoulder ag is in contact with the stop 17 on the rack 5. The stop 17 and the stop 18 restrictive are fixed in the rack 5 by screws 19 and 20. A lever 21 is attached to the rack 5, which interacts with the lock 22 using a spring 23. The lock 22 and the fixed base of the rack 24 are installed in the housing 1.

Устройство работает следующим образом.The device operates as follows.

Шпинделю 4 сообщают вращение. Одновременно с этим пиноль 2 со шпинделем 4 и метчиком 10 получает осевое перемещение в направлении обрабатываемой детали, равное шагу нарезаемой резьбы за один оборот метчика. Крутящий момент со шпинделя 4 передается корпусу И с резцедержателем 12 и резцом 13.Spindle 4 is informed of rotation. At the same time, the pinole 2 with the spindle 4 and the tap 10 receives an axial movement in the direction of the workpiece, equal to the pitch of the cut thread per revolution of the tap. Torque from the spindle 4 is transmitted to the housing And with a tool holder 12 and a cutter 13.

По мере приближения метчика 10 к обрабатываемой детали, резцедержатель 12 с резцом 13 вращаются, а рычаг 6, поворачиваясь относительно своей оси при перемещении пиноли 2 вверх, сообщает корпусу 11 и резцедержателю 12 осевое перемещение в направлении к обрабатываемой детали относительно шпинделя 4. Резцедержатель 12 движется по копиру 15, при этом резец 13 перемещается, опережая метчикAs the tap 10 approaches the workpiece, the tool holder 12 with the cutter 13 rotates, and the lever 6, turning about its axis when moving the pin 2 upwards, informs the body 11 and the tool holder 12 of the axial movement towards the workpiece relative to the spindle 4. The tool holder 12 moves according to the copy 15, while the cutter 13 moves, ahead of the tap

10. В тот момент, когда резцедержатель 12 с резцом 13 переместились относительно шпинделя 4 на величину, превышающую длину выхода метчика, копир 15 попадает во впадину на резцедержателе 12 и последний вместе с резцом 13 поворачивается в корпусе 11. Контакт резцедержателя 12 с копиром 15 обеспечивает пружина 14.10. At the moment when the tool holder 12 with the tool 13 moved relative to the spindle 4 by an amount exceeding the tap exit length, the copier 15 falls into the cavity on the tool holder 12 and the latter together with the tool 13 rotates in the housing 11. The contact of the tool holder 12 with the copier 15 provides spring 14.

При достижении резцом 13 необходимой глубины резания, ролик 9, закрепленный на кронштейне 3, взаимодействуя с ограничительным упором 18, отклоняет его вместе со стойкой 5When the cutter 13 reaches the required depth of cut, the roller 9 mounted on the bracket 3, interacting with the limit stop 18, rejects it together with the stand 5

874288 4 вправо. Плечо рычага 6 при этом выходит из взаимодействия с упором 17 и резцедержатель 12 с резцом 13 совместно с корпусом 11 под действием пружины 8 возвращаются в исходное ₅ положение относительно шпинделя 4. Метчик 10 в это время осуществляет резьбонареэание. После окончания реэьбонарезания шпинделю 4 сообщается реверсирование. Пиноль 2 опускается и при этом рычаг 6 снова входит в контакт с Ю упором 17.874288 4 to the right. The shoulder of the lever 6 thus comes out of interaction with the stop 17 and the tool holder 12 with the cutter 13 together with the housing 11 under the action of the spring 8 return to their original ₅ position relative to the spindle 4. The tap 10 at this time carries out threading. After the re-cutting of the spindle 4, the reversal is reported. The pin 2 is lowered and the lever 6 again comes into contact with the Yu stop 17.

Claims

The invention relates to a machine tool industry and can be used for thread cutting simultaneously with chamfering. According to the main author. St. No. 740422, a device is known for c} 1 chamfers simultaneously with threading by means of a tag mounted on the spindle and a spring-loaded cutter, which is equipped with one mounted on the ipshn-. the case with the possibility of axial movement of the tool holder with a ring and a stand arranged parallel to the axis of the tap with a stop mounted with the possibility of contact with the ring. However, the known device is characterized by relatively low machining quality. The purpose of the invention is to improve the quality of processing. The goal is achieved by the fact that the device is provided with a lever placed between the spindle and a stand, one arm of which is in contact with the tool holder, and the other with the support on the stand. In addition, the device is equipped with a copier placed on the spindle for interacting with the tool holder. FIG. 1 shows the structure of a chamfering device; in fig. 2 - the device, top view; in fig. 3 is a view A of FIG. 2; in fig. 4 is a section BB in FIG. I. The device contains in the case I of the machine tool a quill 2, to which the bracket 3 is attached, on the bracket 3 between the spindle 4 and the stand 5 the swinging lever 6 is located, the rod 7 with the spring 8 and 9 is also on the bracket. In a shanendel 4 in a collet clamp Attach the hook to 10. The spindle 4 is axially displaceable. The housing is located on the tool holder 12, which carries the cutter 13. The tool holder 12, using the spring 14, contacts the copier 15, attached to the spindle 4. The ring 16 of the housing 11 with the holder is attached one shoulder lever 8, and the other shoulder p The chag contacts the stop 17 on the rack 5. The stop 17 and the stop 18 of the cutter No. 5 are fixed in the rack 5 with screws 19 and 20. The lever 21 is attached to the rack 5, interacting with the retainer 22 using spring 23. 1 xator 22 and the fixed base of the rack 24 Installed in the housing 1. The device operates as follows. Spitzelle 4 reported rotation. At the same time, the quill 2 with the saw 4 and the tap 10 receive an axial movement in the direction of the workpiece, equal to the pitch of the thread being cut in one turn of the tap. The torque from the spindle 4 is transmitted to the body P with the tool holder 12 and the cutter 13. As the tap 10 approaches the workpiece, the tool holder 12 with the tool 13 rotates and the lever 6 rotates about its axis when the quill movement 2 moves up, informs the body 11 and the tool holder 12 axial movement in direction of the machined part to the spindle 4. The tool holder 12 moves on the cam 15, while this tool 13 moves, advancing the tap 10. At that moment, when the tool holder 12 with the tool 13 moves relative to the spindle l 4 on a magnitude greater than the output length of the lash, the copier 15 falls into the cavity on the tool holder 12 and the latter, together with the cutter 13, rotates in the housing 11. The contact of the tool holder 12 with the copier 15 is provided by the spring 14. When the cutter 13 reaches the required cutting depth, the roller 9, mounted on the bracket 3, interacting with the limiting stop 18, deflects it together with the stand 5 84 to the right. In this case, the lever arm 6 leaves the engagement with the stop 17 and the tool holder 12 with the cutter 13, together with the housing 11, returns to its original position relative to the spindle 4 with the action of the spring 8. The mepic 10 at this time performs thread cutting. Upon completion of threading, reversing is reported to spindle 4. The quill 2 is lowered and at the same time the lever 6 comes back into contact with the stop 17. Claim 1. The device for chamfering according to the ed. St. No. 740422 (for application # 2658605 / 25-08), of which there is. By the fact that, in order to improve the quality of processing, the device is equipped with a spindle located between the spindle and a stand arm, one of which is in contact with the tool and the other with an emphasis on the stand.

2. The device according to claim 1, wherein it is provided with a cam mounted on the spindle for interacting with the tool holder. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 740422, cl. In 23 G 5/00, 08.28.78.

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