• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    PURPOSE: A branching apparatus for a hydraulic tool is provided to detect the clamping fault of a workpiece before the workpiece is processed by installing an air feeding line capable of feeding air into a clamping block. CONSTITUTION: A feeding line(32) and a return line(34) of a hydraulic unit(30) are connected to a main coupler(40). At least two hydraulic lines are branched from the feeding line(32) and the return line(34) through a plurality of manifolds(50,52). The hydraulic lines connected to the plurality of manifolds(50,52) are coupled to a plurality of actuators(80,82) through auxiliary couplers(60,62). An air feeding line(90) is provided from the main coupler(40) to the actuators(80,82) through the auxiliary couplers(60,62). A pressure sensor is mounted on the air supplying line(90).
    公开号:KR20020059101A
    申请号:KR1020000087646
    申请日:2000-12-31
    公开日:2002-07-12
    发明作者:김환규
    申请人:양재신；대우종합기계 주식회사；
    IPC主号:
    专利说明:

    Branching apparatus of oil pressure jig for machining center
    [10] The present invention relates to a branching device of a hydraulic jig for a machining center, and more particularly, by connecting the main coupler directly to the feed line and the return line of the hydraulic unit to reduce the number of connections on the main coupler, reducing the installation space of the main coupler, clamping The present invention relates to a branching device of a hydraulic jig for a machining center having an air supply line capable of supplying air to a block to detect a clamping defect of a workpiece before machining.
    [11] In general, in the machining center, hydraulic cylinders are installed at each fixed part of the workpiece in order to more quickly clamp and unclamp the workpiece, and the workpiece is mounted and detached using various valves and hydraulic units.
    [12] In the conventional hydraulic jig for driving such a hydraulic cylinder (actuator), as shown in FIG. 1, the direction in which oil supplied from the hydraulic unit 10 flows through the jig manifold 12 is changed. The oil that was controlled and passed through the jig manifold 12 was collected to the main coupler 14 and then sent to a plurality of jig couplers 16 and 17 to be supplied to each actuator 18. .
    [13] However, since the conventional hydraulic fixture branching device has a structure in which oil supplied to all actuators 18 is collected in one main coupler 14 and then redistributed, the size of the main coupler 14 is more than necessary. There was a problem, which was limited to the installation space, there is a limit to the number of actuators 18, causing the incomplete clamping of the workpiece, there was a problem that the processing defects occur.
    [14] In addition, since all the hydraulic lines are connected through one main coupler 14, there is a problem that the life is shortened while pressure is concentrated on the main coupler 14.
    [15] On the other hand, the conventional hydraulic jig branch device does not have a device that can automatically detect whether or not the workpiece is completely clamped by the actuator 18, so processing proceeds intact even when fluid pressure drops due to leakage or the like. This caused damage to the workpiece as well as the tool and the machine tool.
    [16] The present invention has been made to solve the above problems, the object of which is to directly connect the main coupler to the pressure line and the return line of the hydraulic unit to reduce the number of connections on the main coupler to reduce the installation space of the main coupler, clamping block The present invention provides a branching device of a hydraulic jig for a machining center equipped with an air supply line for supplying air to a workpiece to detect a clamping defect of a workpiece before processing.
    [17] In order to achieve the object of the present invention, the pressure line and the return line of the hydraulic unit to be connected to the main coupler, each line through the main coupler through at least two hydraulic lines through a plurality of jig manifold for each line At least two hydraulic lines through the jig manifold have a feature configured to be connected to a plurality of actuators through auxiliary couplers, respectively.
    [1] 1 is a circuit diagram showing a branching device of a conventional hydraulic jig for a machining center
    [2] Figure 2 is a circuit diagram showing a branching device of the hydraulic jig for machining center according to the present invention
    [3] * Explanation of Signs of Major Parts of Drawings *
    [4] 30: hydraulic unit 32: pressure feed line
    [5] 34: return line 40: main coupler
    [6] 50,52: jig manifold 60,62: jig coupler
    [7] 70,72: actuator 80,82: clamping block
    [8] 90: air supply line 100,102: workpiece
    [9] PS: Pressure sensor
    [18] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
    [19] As shown in FIG. 2, the pressure feeding line 32 and the return line 34 of the hydraulic unit 30 are connected to the main coupler 40, and each line 32 through the main coupler 40 ( 34) each of the at least two hydraulic lines through the plurality of jig manifolds (50, 52) to branch, respectively, at least two or more hydraulic lines through the jig manifold (50) (52) There was configured to be connected to the plurality of actuators 80, 82 through the auxiliary coupler (60, 62), respectively.
    [20] Here, the jig manifold (50) (52) is a plurality of direction switching valve, relief valve, check valve is processed and assembled in one block.
    [21] An air supply line 90 leading to the clamping blocks 80 and 82 via the main coupler 40, the jig manifolds 50 and 52, and the jig coupler 60 and 62; When the workpiece is clamped, the air supply line 90 includes a pressure sensor PS for measuring the pressure according to the discharge of the air discharged into the gap between the clamping blocks 80 and 82 and the workpiece 100 and 102. It was configured to measure the pressure on the air supply line 90 when the workpiece (100, 102) is clamped and configured to detect the clamping failure.
    [22] Hereinafter, the operation according to the present invention will be described in detail with reference to the accompanying drawings.
    [23] 2, when oil is supplied from the pressure feeding line 32 of the hydraulic unit 30, the main coupler 40 passes and then a plurality of jig manifolds 50 and 52 for the jig. The oil supplied to each of the actuators 70 and 72 through the coupler 60 and 62, and the oil returned to the actuators 70 and 72, flows back through the return line 34, which is the reverse path, to the hydraulic unit. Return to (30).
    [24] On the other hand, when compressed air is supplied through the air supply line 90 provided in the main coupler 40 when the workpieces 100 and 102 are clamped while oil is supplied to the actuators 70 and 72, Compressed air is supplied to the clamping blocks 80 and 82 via the manifolds 50 and 52 and the jig couplers 60 and 62, and the clamping blocks 80 and 82 are machined 100. If it is not in close contact with the proper pressure (102), a large amount of compressed air through the gap formed between the clamping block (80) 82 and the workpiece (100) (102) on the air supply line (90) The pressure will drop below the set point.
    [25] At this time, the pressure is detected by the pressure sensor PS installed on the air supply line 90, and the detected measurement is transmitted or displayed again through the numerical control device or the display device to automatically notify the worker of the clamping failure. When the clamping blocks 80 and 82 are in close contact with the workpiece 100 and 102 to maintain the proper pressure, the pressure measured on the air supply line 90 exceeds the set value because the amount of leakage of compressed air decreases. It is measured by a numerical value to confirm that the clamping is normally performed.
    [26] As described above, the present invention is configured to reduce the connection point of the hydraulic line connected to the main coupler, so that the size of the main coupler can be made smaller, and thus the degree of freedom of designing according to the limited installation space of the main coupler. It can be made larger, and by removing the restriction on the number of mounting of the actuator can be more stable clamping operation is possible.
    [27] In addition, by measuring the amount of leakage of compressed air supplied to the clamping block, it is possible to automatically detect the clamping defects, so that it is possible to find out the clamping defects before machining, thereby preventing the machining defects caused by the clamping defects in advance. It works.
    权利要求:
    Claims (2)
    [1" claim-type="Currently amended] The pressure feeding line 32 and the return line 34 of the hydraulic unit 30 are connected to the main coupler 40, and each of the lines 32 and 34 through the main coupler 40 has a plurality of jig manifolds. At least two hydraulic lines may be branched by means of (50) and (52), respectively, and at least two hydraulic lines through the manifolds (50) and (52) for auxiliary fixtures (60, 62). Branching device of the hydraulic jig for machining center, characterized in that to be connected to each of the plurality of actuators (80) (82) through.
    [2" claim-type="Currently amended] According to claim 1, Air supply line leading to the clamping block (80, 82) via the main coupler (40), jig manifold (50), 52, jig coupler (60) (62) 90) and branching device of the hydraulic jig for machining center, characterized in that the pressure sensor (PS) is installed on the air supply line (90).
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2000-12-31|Application filed by 양재신, 대우종합기계 주식회사
    2000-12-31|Priority to KR1020000087646A
    2002-07-12|Publication of KR20020059101A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1020000087646A|KR20020059101A|2000-12-31|2000-12-31|branching apparatus of oil pressure jig for machining center|
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