KR20070068731A - Increase and decrease instrument of hydraulic table rotating device - Google Patents

Increase and decrease instrument of hydraulic table rotating device Download PDF

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Publication number
KR20070068731A
KR20070068731A KR1020050130681A KR20050130681A KR20070068731A KR 20070068731 A KR20070068731 A KR 20070068731A KR 1020050130681 A KR1020050130681 A KR 1020050130681A KR 20050130681 A KR20050130681 A KR 20050130681A KR 20070068731 A KR20070068731 A KR 20070068731A
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South Korea
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hydraulic
hydraulic cylinder
rack
cam
pinion
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KR1020050130681A
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Korean (ko)
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KR101235530B1 (en
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전규인
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두산인프라코어 주식회사
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Priority to KR1020050130681A priority Critical patent/KR101235530B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B23Q16/02—Indexing equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/26—Fluid-pressure drives
    • B23Q5/266—Fluid-pressure drives with means to control the feed rate by controlling the fluid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/341—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission cam-operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/02—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of drums or rotating tables or discs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2705/00—Driving working spindles or feeding members carrying tools or work
    • B23Q2705/10—Feeding members carrying tools or work
    • B23Q2705/12—Fluid-pressure drives

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Actuator (AREA)

Abstract

An acceleration/deceleration mechanism for a hydraulic table rotating device is provided to stably rotate a table by controlling the flow rate to a hydraulic cylinder and increasing/decreasing the motion of a rack and a pinion. An acceleration/deceleration mechanism for a hydraulic table rotating device includes a cam(60) directly connected to a pinion(54); an operating pin(62) contacting the cam and moving back and forth; a valve unit connected to the operating pin so as to increase/decrease the flow rate to a hydraulic cylinder(50); and a direction control valve(80) mounted on a pipeline interconnecting the valve unit and the hydraulic cylinder so as to control the operating direction of the hydraulic cylinder.

Description

유압식 테이블 선회장치의 가감속 기구{Increase and decrease instrument of hydraulic table rotating device}Acceleration and deceleration mechanism of hydraulic table turning device

본 명세서에서 첨부되는 다음의 도면들은 본 발명의 바람직한 실시예를 예시하는 것이며, 후술하는 발명의 상세한 설명과 함께 본 발명의 기술사상을 더욱 이해시키는 역할을 하는 것이므로, 본 발명은 그러한 도면에 기재된 사항에만 한정되어서 해석되어서는 아니된다.The following drawings, which are attached in this specification, illustrate preferred embodiments of the present invention, and together with the detailed description of the present invention, serve to further understand the technical spirit of the present invention. It should not be construed as limited to.

도 1은 종래 테이블 구동장치의 구성도.1 is a block diagram of a conventional table driving apparatus.

도 2는 도 1에서 랙과 피니언의 구동동작을 나타낸 단면도.2 is a cross-sectional view showing a driving operation of the rack and pinion in FIG.

도 3은 본 발명에 따른 유압식 테이블 선회장치의 가감속 기구의 구성도.3 is a configuration diagram of an acceleration / deceleration mechanism of the hydraulic table swing device according to the present invention.

도 4는 본 발명에 따른 유압식 테이블 선회장치의 가감속 기구의 유압회로 구성도.Figure 4 is a hydraulic circuit configuration of the acceleration and deceleration mechanism of the hydraulic table swing device according to the present invention.

도 5는 본 발명에 적용되는 캠의 선도.5 is a diagram of a cam applied to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10: 테이블10: table

50: 유압실린더50: hydraulic cylinder

52: 랙52: rack

54: 피니언54: pinion

60: 캠60: cam

62: 작동핀62: operating pin

70: 가감밸브70: regulating valve

본 발명은 랙과 피니언을 이용한 유압식 테이블 선회장치의 가감속 기구에 관한 것으로, 특히 선회완료시의 충격이 없고 전체적인 선회시간을 단축할 수 있도록 한 유압식 테이블 선회장치의 가감속 기구에 관한 것이다.The present invention relates to an acceleration / deceleration mechanism of a hydraulic table turning device using a rack and pinion, and more particularly, to an acceleration / deceleration mechanism of a hydraulic table turning device that can reduce the overall turning time without impact when turning is completed.

가공기에서 공작물을 자동 로딩시키기 위해 테이블은 절삭공정이 완료되면 대기영역과 가공영역의 위치가 교환된다. 따라서 대기영역측 공작물은 가공영역으로 위치되고, 가공영역측 공작물은 대기영역으로 위치된다. 통상 교환위치는 180도에서 이루어진다.In order to automatically load the workpiece in the machine, the table is exchanged between the waiting area and the machining area when the cutting process is completed. Therefore, the workpiece on the standby area side is located in the machining area, and the workpiece on the machining area side is located in the standby area. The exchange location is usually at 180 degrees.

이같이 공작물이 장착되는 테이블을 선회시키기 위해 선회장치가 이용된다. 종래 가공기에 적용되는 테이블 선회장치는 도 1 및 도 2에 도시된 바와 같이 랙(12)과 피니언(14)의 치형 결합을 이용한다. 즉, 랙 실린더(11)로 동작하는 랙(12)의 직선운동이 피니언(14)의 회전운동으로 변환시켜서 이루어진다. 이때 랙(12)은 랙실린더(11)내에 공급되는 유압의 방향에 따라 직선운동하고, 피니언(14)은 랙(12)의 운동방향에 따라 시계방향 또는 반시계 방향으로 180도 선회운동을 한다. 이때 피니언(14)에는 회전축(15)이 연결되고, 회전축(15)에 테이블(10)이 연결되어 있다.As such, a pivoting device is used to pivot the table on which the workpiece is mounted. The table turning device applied to the conventional processing machine uses the tooth coupling of the rack 12 and the pinion 14 as shown in FIGS. 1 and 2. That is, the linear motion of the rack 12 operating as the rack cylinder 11 is converted into the rotational motion of the pinion 14. In this case, the rack 12 linearly moves according to the direction of hydraulic pressure supplied into the rack cylinder 11, and the pinion 14 rotates 180 degrees clockwise or counterclockwise according to the movement direction of the rack 12. . At this time, the pinion 14 is connected to the rotary shaft 15, the rotary shaft 15 is connected to the table 10.

따라서 피니언(14)의 회전 운동시 테이블(10)은 공작물과 함께 선회를 함으로써 선회 정지시 충격을 방지하기 위한 수단이 요구된다. 종래는 도 1과 같이 랙실린더(11)의 양끝의 마지막 동작구간에 유량을 갑자기 줄여주는 쿠션구간(L)을 가지고 있다.Therefore, the table 10 during the rotational movement of the pinion 14 is required to prevent the impact when the swing stops by turning with the workpiece. Conventionally, as shown in Figure 1 has a cushion section (L) for suddenly reducing the flow rate in the last operating section of both ends of the rack cylinder (11).

그런데 이와 같은 방법은 쿠션구간에서 유량이 급격히 줄어들기 때문에 충격을 완전히 없앨 수가 없어서 어느 정도의 충격이 일어남을 피할 수 없다. 즉, 0도와 180도 위치에서 정지시의 완전한 충격을 없애는 것이 어렵다.However, in this method, the flow rate is sharply reduced in the cushion section, so the shock cannot be completely eliminated, so that some shock cannot be avoided. That is, it is difficult to eliminate the complete shock at rest at the 0 degree and 180 degree positions.

또한 선회의 전체 구간 동안 유량이 일정하게 공급되기 때문에 선회속도도 일정한 속도로 스텝으로 제어할 수 밖에 없다. 즉 출발 ↔ 등속쿠션속도 ↔ 등속선회속도 ↔ 등속쿠션속도 ↔ 정지로 이루어져 결과적으로 선회시의 충격도 완전히 없을 뿐만 아니라 선회시간도 많이 걸리는 단점이 있다.In addition, since the flow rate is uniformly supplied during the entire section of the turning, the turning speed is inevitably controlled in steps at a constant speed. That is, starting ↔ constant speed cushion speed ↔ constant speed turning speed ↔ constant speed cushion speed ↔ stop, and as a result, there is not only no shock when turning, but also a long turn time.

따라서 본 발명은 상기와 같은 제반적인 사정을 감안하여 창출된 것으로, 유량을 제어하여 동작 완료시 충격을 없애고, 전체적인 선회시간도 단축할 수 있는 유압식 테이블 선회장치의 가감속 기구를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above-described circumstances, and an object thereof is to provide an acceleration / deceleration mechanism of a hydraulic table turning device that can control the flow rate to eliminate the impact when the operation is completed and reduce the overall turning time. have.

상기의 목적을 달성하기 위한 본 발명의 구체적인 수단은,Specific means of the present invention for achieving the above object,

유압실린더에 연결되어 직선운동하는 랙과, 상기 랙에 이맞물림된 피니언의 회전운동을 통해 테이블을 선회시키는 유압식 선회장치에 있어서,In the rack is connected to the hydraulic cylinder and linear movement, and the hydraulic swing device for turning the table through the rotational movement of the pinion meshed with the rack,

상기 피니언에 편심으로 직결된 캠과;A cam eccentrically connected to the pinion;

상기 캠에 접촉하여 진퇴 운동하는 작동핀과;An actuating pin that moves forward and backward in contact with the cam;

상기 작동핀에 연결되어 상기 유압실린더로 공급되는 유량을 가감 조절하는 밸브수단과;Valve means connected to the operation pin to adjust the flow rate supplied to the hydraulic cylinder;

상기 밸브수단과 상기 유압실린더를 연결하는 관로에 설치되어 상기 유압실린더의 작동방향을 제어하는 방향제어밸브를 포함한 것을 특징으로 한다.It is characterized in that it comprises a direction control valve is installed in the pipe connecting the valve means and the hydraulic cylinder to control the operation direction of the hydraulic cylinder.

또한 본 발명에 따른 밸브수단은, 상기 작동핀의 후퇴시 유량이 증가하고 전진시 유량이 감소하는 가감밸브로 구성한 것을 특징으로 한다.In addition, the valve means according to the invention is characterized in that the flow rate is increased when the retraction of the operation pin and characterized in that it is configured as an regulating valve that decreases the flow rate when moving forward.

또한 본 발명에 따른 유압실린더는 상기 랙의 일단에 직결된 복동식 실린더로 구성된 것을 특징으로 한다.In addition, the hydraulic cylinder according to the invention is characterized in that consisting of a double-acting cylinder directly connected to one end of the rack.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명에 따른 유압식 테이블 선회장치의 가감속 기구의 구성도이고, 도 4는 본 발명에 따른 유압식 테이블 선회장치의 가감속 기구의 유압회로 구성도이고, 도 5는 본 발명에 적용되는 캠의 선도이다.3 is a configuration diagram of the acceleration and deceleration mechanism of the hydraulic table turning apparatus according to the present invention, Figure 4 is a configuration diagram of the hydraulic circuit of the acceleration and deceleration mechanism of the hydraulic table turning apparatus according to the present invention, Figure 5 is applied to the present invention It is the leading of the cam.

도 3 및 도 4에 도시된 바와 같이, 유압실린더(50)에 연결되어 직선운동하는 랙(52)과, 상기 랙(52)에 이맞물림되어 회전운동하는 피니언(54)이 회전축(15)에 구성된다. 상기 유압실린더(50)는 상기 랙(52)의 일단에 직결된 복동식 실린더로 구성된다.As shown in FIGS. 3 and 4, the rack 52 connected to the hydraulic cylinder 50 to linearly move, and the pinion 54 meshed with the rack 52 to rotate, are connected to the rotation shaft 15. It is composed. The hydraulic cylinder 50 is composed of a double-acting cylinder directly connected to one end of the rack (52).

따라서 상기 테이블(10)은 랙(52)의 직선운동 방향에 따라 180도 선회가능하 게 되어 있다.Therefore, the table 10 can be rotated 180 degrees according to the linear movement direction of the rack 52.

상기 회전축(15)에는 편심으로 직결된 캠(60)이 구비되어 있고, 상기 캠(60)에는 진퇴 운동가능한 작동핀(62)이 접촉되어 있고, 상기 작동핀(62)의 일단은 스프링(63)에 의해 캠(60)에 밀어붙여져 있다. 상기 캠(60)은 진원 또는 타원형으로 구성될 수 있다.The rotary shaft 15 is provided with a cam 60 directly connected to the eccentric, the cam 60 is in contact with the operation pin 62 capable of moving forward and backward, one end of the operation pin 62 is a spring 63 Is pressed against the cam 60 by The cam 60 may be of a round or oval shape.

따라서 상기 작동핀(62)은 캠(60)의 편심량에 해당하는 만큼 진퇴운동을 하게 되어 있다.Therefore, the operation pin 62 is to move forward and backward as much as the eccentric amount of the cam (60).

상기 작동핀(62)의 진퇴 운동량으로 상기 유압실린더(50)로 공급되는 유량을 가감하는 유량조절수단으로 가감밸브(70)가 구비되어 있다.A regulating valve 70 is provided as a flow rate adjusting means for regulating the flow rate supplied to the hydraulic cylinder 50 by the amount of forward and backward movement of the operation pin 62.

본 실시예에서 가감밸브(70)는 스풀(71)의 일단에 롤러(72)가 구비되고, 롤러(72)가 스프링(73)에 의해 작동핀(62)에 밀어 붙여져 있게 되어 있다.In this embodiment, the regulating valve 70 is provided with a roller 72 at one end of the spool 71, the roller 72 is pushed to the operation pin 62 by the spring 73.

따라서 가감밸브(70)는 스풀(71)을 누르게 되면 유로단면을 증가시켜 유량이 증가하고 반대로 스풀(71)이 스프링(73)에 의해 원위치로 복귀하면 유로단면이 감소되도록 구성된 것이다.Therefore, the regulating valve 70 is configured to increase the flow path cross section when the spool 71 is pressed, and to reduce the flow path cross section when the spool 71 returns to its original position by the spring 73.

상기 가감밸브(70)와 상기 유압실린더(50)를 연결하는 관로에는 상기 유압실린더(50)의 작동방향을 제어하는 방향제어밸브(80)가 설치되어 있다.A direction control valve 80 for controlling the operation direction of the hydraulic cylinder 50 is installed in the pipeline connecting the control valve 70 and the hydraulic cylinder 50.

이와 같이 구성된 본 실시예의 작용을 설명한다.The operation of this embodiment configured as described above will be described.

먼저, 도 1과 같이 캠(60)이 0도의 위치에 있고, 랙(52)이 일방으로 당김되된 상태에서 작동핀(62)은 최대로 전진한 상태를 나타낸다.First, as shown in FIG. 1, the cam 60 is at a position of 0 degrees, and the actuating pin 62 is in a state in which the rack 52 is pulled to one side to the maximum advance state.

이같은 상태에서 펌프(P)측에서 토출된 압유는 방향제어밸브(80)가 중립 위 치에 있을 경우 스풀(71)의 입출구측에 차압이 발생되지 않아 스풀(71)은 동작하지 않는 상태이다.In such a state, the pressure oil discharged from the pump P side is in a state in which the differential pressure does not occur at the inlet and outlet sides of the spool 71 when the direction control valve 80 is at the neutral position.

이후 방향제어밸브(80)에 A신호가 입력되면 우측으로 절환되고, 유압실린더(50)에 연결된 랙(52)은 좌측으로 직선이동하게 된다. 랙(52)의 회전에 연동하여 피니언(54)가 캠(60)과 일체로 회전한다.After the A signal is input to the direction control valve 80 is switched to the right, the rack 52 connected to the hydraulic cylinder 50 is linearly moved to the left. The pinion 54 rotates integrally with the cam 60 in conjunction with the rotation of the rack 52.

이때 작동핀(62)은 캠(60)과의 접촉면이 이동하게 되면서 점차 후퇴하게 되고, 가감밸브(70)의 스풀(71)은 후퇴하여 유로단면이 점차 증가한다.At this time, the operation pin 62 is gradually retracted as the contact surface with the cam 60 moves, the spool 71 of the regulating valve 70 is retracted to increase the flow path cross-section gradually.

따라서 캠(60)이 90도 회전위치에 도달하면 스풀(71)은 최대로 눌러져 유로 단면은 최대가 되고, 유압실린더(50)에는 최대 유량이 공급되어 랙(52)은 최고 속도로 직선이동하게 된다.Therefore, when the cam 60 reaches the rotational position of 90 degrees, the spool 71 is pressed to the maximum and the flow path cross section is maximized, the maximum flow rate is supplied to the hydraulic cylinder 50 so that the rack 52 moves linearly at the maximum speed. do.

이후 다시 캠(60)이 180도 위치에 도달하면 작동핀(62)과 스풀(71)은 다시 최대로 전진하게 되고, 가감밸브(70)의 스풀(71)이 유로를 점차 차단하게 되어 유압실린더(50)에 연결된 랙(52)은 서서히 정지를 완료하게 된다.After the cam 60 reaches the 180 degree position again, the operation pin 62 and the spool 71 move forward to the maximum again, and the spool 71 of the regulating valve 70 gradually blocks the flow path so that the hydraulic cylinder Rack 52 connected to 50 will slowly complete the stop.

이와 같이 본 발명의 선회장치는 방향제어밸브(80)의 방향 전환에 따라 유압실린더(50)로 공급되는 유량을 가감밸브(70)에 의해 가감시킴으로써 정지위치에서의 충격이 없고 선회중에 최고 속도를 낼 수 있다.As described above, the turning device of the present invention increases or decreases the flow rate supplied to the hydraulic cylinder 50 by the regulating valve 70 according to the change of the direction of the direction control valve 80, thereby preventing the impact at the stop position and increasing the maximum speed during the turning. I can make it.

즉, 캠(60)의 0도와 180도 위치에서는 가감밸브(70)의 열림량이 최소화되도록 조절됨으로서 선회속도를 줄여 정지위치에서 충격이 없다. 또한 캠(60)의 90도 위치에서는 가감밸브(70)의 열림량이 최대로 되어 최고의 속도를 낼 수 있다.That is, in the 0 degree and 180 degree positions of the cam 60, the opening amount of the regulating valve 70 is adjusted so as to minimize the turning speed so that there is no impact at the stop position. In addition, in the 90-degree position of the cam 60, the opening amount of the regulating valve 70 is maximized to achieve the highest speed.

이러한 가감속 제어는 도 5와 같이 캠(60)의 선도에 의해 연속적으로 이루어 지므로 선회동작이 자연스럽고, 중간위치에 해당하는 90도 선회위치에서 최고속도를 내게 되므로 전체적인 180도 선회동작의 속도를 짧게 할 수 있는 장점을 갖게 된다.Since the acceleration and deceleration control is continuously performed by the diagram of the cam 60 as shown in FIG. 5, the turning operation is natural, and the maximum speed is given at the 90 degree turning position corresponding to the intermediate position, thereby increasing the speed of the entire 180 degree turning operation. It has the advantage of being shorter.

이상과 같이, 본 발명은 비록 한정된 실시예와 도면에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 않으며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술사상과 아래에 기재될 청구범위의 균등범위 내에서 다양한 수정 및 변형이 가능함은 물론이다.As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto, and the technical idea of the present invention and the following by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

상술한 바와 같이 본 발명의 유압식 테이블 선회장치의 가감속 기구에 따르면, 피니언의 회전 동작에 연동하는 캠의 위치변위에 따라 작동핀을 매개로 가감밸브를 동작시켜, 유압실린더로 공급되는 유량을 연속 제어함으로써 랙과 피니언의 운동을 가감시킬 수 있으므로, 테이블 선회 동작시 안정적으로 할 수 있고, 정지위치에서 충격이 없으며, 전체적인 선회속도를 높일 수 있어 가공생산성을 향상시킬 수 있다.According to the acceleration / deceleration mechanism of the hydraulic table turning device of the present invention as described above, the flow rate supplied to the hydraulic cylinder is continuously operated by operating the acceleration / deceleration valve via the operation pin in accordance with the positional displacement of the cam linked to the rotational motion of the pinion. By controlling the motion of the rack and pinion, the motion of the rack and pinion can be added or reduced, so that it can be stable during the table turning operation, there is no impact at the stop position, and the overall turning speed can be increased, thereby improving the processing productivity.

Claims (3)

유압실린더(50)에 연결되어 직선운동하는 랙(52)과, 상기 랙(52)에 이맞물림된 피니언(54)의 회전운동을 통해 테이블(10)을 선회시키는 유압식 선회장치에 있어서,In the hydraulic swing device for turning the table 10 through the rotation of the rack 52 connected to the hydraulic cylinder 50 and the linear movement of the pinion 54 engaged with the rack 52, 상기 피니언(54)에 편심으로 직결된 캠(60)과;A cam 60 directly eccentrically connected to the pinion 54; 상기 캠(60)에 접촉하여 진퇴 운동하는 작동핀(62)과;An operation pin 62 which moves forward and backward in contact with the cam 60; 상기 작동핀(62)에 연결되어 상기 유압실린더(50)로 공급되는 유량을 가감 조절하는 밸브수단과;Valve means connected to the operation pin (62) to adjust the flow rate supplied to the hydraulic cylinder (50); 상기 밸브수단과 상기 유압실린더(50)를 연결하는 관로에 설치되어 상기 유압실린더(50)의 작동방향을 제어하는 방향제어밸브(80)를 포함한 것을 특징으로 하는 유압식 테이블 선회장치의 가감속 기구.Acceleration and deceleration mechanism of the hydraulic table turning device, characterized in that it comprises a direction control valve (80) which is installed in the pipeline connecting the valve means and the hydraulic cylinder (50) to control the operation direction of the hydraulic cylinder (50). 제1항에 있어서, The method of claim 1, 상기 밸브수단은, 상기 작동핀(62)의 후퇴시 유량이 증가하고 전진시 유량이 감소하는 가감밸브(70)로 구성한 것을 특징으로 하는 유압식 테이블 선회장치의 가감속 기구.The valve means, the acceleration and deceleration mechanism of the hydraulic table turning device, characterized in that the flow rate of the retraction of the actuating pin (62) increases and the flow rate decreases when the advance is configured. 제1항에 있어서, The method of claim 1, 상기 유압실린더(50)는 상기 랙(52)의 일단에 직결된 복동식 실린더로 구성 된 것을 특징으로 하는 유압식 테이블 선회장치의 가감속 기구.The hydraulic cylinder (50) is acceleration and deceleration mechanism of the hydraulic table turning device, characterized in that consisting of a double-acting cylinder directly connected to one end of the rack (52).
KR1020050130681A 2005-12-27 2005-12-27 Increase and decrease instrument of hydraulic table rotating device KR101235530B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103659294A (en) * 2013-11-18 2014-03-26 无锡市正阳机械有限公司 Pneumatic rotary table
WO2023182849A1 (en) * 2022-03-25 2023-09-28 창원대학교 산학협력단 Table detachable assembly for five-axis machining of three-axis machine tool

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JPH02145240A (en) * 1988-11-29 1990-06-04 Nachi Fujikoshi Corp Impact absorbing device for rotation dividing machine
US5261147A (en) * 1993-03-17 1993-11-16 Cincinnati Milacron Inc. Indexing system
US5595218A (en) * 1995-03-09 1997-01-21 Cincinnati Milacron Inc. Valve construction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103659294A (en) * 2013-11-18 2014-03-26 无锡市正阳机械有限公司 Pneumatic rotary table
WO2023182849A1 (en) * 2022-03-25 2023-09-28 창원대학교 산학협력단 Table detachable assembly for five-axis machining of three-axis machine tool
KR20230139173A (en) * 2022-03-25 2023-10-05 창원대학교 산학협력단 Table detachable assembly for 5-axis process of 3-axis machine tools

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