一种摆臂式联动卡盘

Abstract

本申请涉及卡盘的技术领域，一种摆臂式联动卡盘包括安装盘、滑动架和驱动组件，安装盘同轴设有第二连通孔，滑动架滑动连接于安装盘，滑动架设有四个，驱动组件包括驱动缸、连接摆臂和铰接杆，驱动缸用于驱动滑动架滑动，连接摆臂转动连接于安装盘，铰接杆的一端与连接摆臂相铰接，一个连接摆臂对应两个铰接杆，两个铰接杆的另一端分别与同组两个滑动架相铰接。设置连接摆臂和铰接杆，同组任一滑动架滑动时，带动铰接杆与滑动架相铰接的一端滑动，铰接杆绕铰接杆与滑动架的铰接轴线转动，带动铰接杆与连接摆臂相铰接的另一端绕连接摆臂的转动轴线转动，带动另一个的滑动架滑动，实现同组滑动架同步相向滑动，提高卡盘的可靠性。

Claims

1. A swing arm linkage chuck, characterized by: The assembly includes a mounting plate (11), a sliding frame (21), and a drive assembly (22). The mounting plate (11) is coaxially provided with a second connecting hole (111). The sliding frame (21) is slidably connected to the mounting plate (11). The sliding direction of the sliding frame (21) is perpendicular to the axial direction of the mounting plate (11). The sliding frame (21) is used to abut against the outer wall of the workpiece. There are four sliding frames (21). The four sliding frames (21) are divided into two groups. The two groups of sliding frames (21) are distributed on both sides of the second connecting hole (111) perpendicular to the second connecting groove. The sliding directions of the two groups of sliding frames (21) are perpendicular to each other. The drive assembly (22) includes a drive cylinder (221), a connecting swing arm (222), and a hinge rod. (223); the drive cylinder (221) is connected to the mounting plate (11); the drive cylinder (221) is used to drive the sliding frame (21) to slide; the connecting arm (222) is rotatably connected to the mounting plate (11); the rotation axis of the connecting arm (222) is perpendicular to the sliding direction of the corresponding sliding frame (21); one end of the hinge rod (223) is hinged to the connecting arm (222); one connecting arm (222) corresponds to two hinge rods (223); the distance from the hinge axis of the two hinge rods (223) to the rotation axis of the connecting arm (222) is equal; the other end of the two hinge rods (223) is hinged to the two sliding frames (21) in the same group respectively.

2. The swing arm gang chuck of claim 1, wherein: The drive assembly (22) is provided with four connecting arms (222); the four connecting arms (222) are divided into two groups; the two groups of connecting arms (222) correspond to two groups of sliding frames (21) respectively; the two connecting arms (222) in the same group are symmetrically distributed along the sliding direction perpendicular to the corresponding sliding frame (21).

3. The swing arm gang chuck of claim 1 wherein: The drive assembly (22) also includes a bearing (227); a rotating column (17) is connected to the side of the mounting plate (11) near the sliding frame (21); the number of rotating columns (17) is the same as the number of connecting swing arms (222) and they correspond one-to-one; the connecting swing arms (222) are provided with connecting holes (22211); the axis of the connecting hole (22211) coincides with the rotation axis of the connecting swing arm (222); the rotating column (17) is coaxially embedded in the connecting hole (22211); the bearing (227) is embedded in the connecting hole (22211); the bearing (227) is sleeved on the outer periphery of the rotating column (17).

4. The swing arm gang chuck of claim 3, wherein: The drive assembly (22) further includes a pressure ring (2281), a fixing bolt (2282), and a retaining ring (2283); a second mounting groove (171) is provided on the outer wall of the rotating column (17) away from the mounting plate (11); the bearing (227) is embedded in the second mounting groove (171); the inner wall of the inner ring of the bearing (227) is in contact with the groove wall of the second mounting groove (171); one end of the inner ring of the bearing (227) abuts against the bottom of the groove of the second mounting groove (171); the pressure ring (2281) is connected to the rotating column (17) away from the mounting plate (11). 1) One end; the pressure ring (2281) abuts against the end of the inner ring of the bearing (227) away from the bottom of the second mounting groove (171); the shank of the fixing bolt (2282) passes through the inner side of the pressure ring (2281) and is threadedly connected to the rotating column (17); the head of the fixing bolt (2282) abuts against the side surface of the pressure ring (2281) away from the rotating column (17); the connecting hole (22211) is provided with a first mounting groove (22212) at the end of the hole away from the mounting plate (11); the outer wall of the outer ring of the bearing (227) fits against the groove wall of the mounting groove; One end of the outer ring of the bearing (227) abuts against the bottom of the first mounting groove (22212); a retaining groove (22213) is provided on the groove wall of the first mounting groove (22212) away from the mounting plate (11); the retaining spring (2283) is embedded in the retaining groove (22213); the retaining spring (2283) abuts against the end of the outer ring of the bearing (227) away from the bottom of the first mounting groove (22212).

5. The swing arm gang chuck of claim 1 wherein: The drive assembly (22) further includes a slide rail (224) and a slide block (225); the slide rail (224) is connected to the mounting plate (11); the slide block (225) is slidably connected to the slide rail (224); the sliding direction of the slide block (225) is parallel to the sliding direction of the sliding frame (21); one sliding frame (21) corresponds to two slide blocks (225); the two slide blocks (225) are symmetrically distributed along the sliding direction perpendicular to the sliding frame (21).

6. The swing arm gang chuck of claim 1, wherein: It also includes a clamping roller (226); there are several clamping rollers (226); the several clamping rollers (226) are divided into four groups; the four groups of clamping rollers (226) are distributed corresponding to four sliding frames (21); the clamping rollers (226) are connected to the side of the sliding frame (21) near the second connecting hole (111); the clamping rollers (226) are used to clamp the outer wall of the workpiece.

7. The swing arm gang chuck of claim 1, wherein: It also includes a protective cover (12); the protective cover (12) is connected to the mounting plate (11); the sliding frame (21) and the drive assembly (22) are embedded in the protective cover (12); the protective cover (12) is provided with a first connecting hole (121); the first connecting hole (121) is opposite to the second connecting hole (111).

8. The swing arm gang chuck of claim 7, wherein: The protective cover (12) is provided with a plurality of heat dissipation holes (122); the plurality of heat dissipation holes (122) are circumferentially distributed around the axis of the mounting plate (11).

9. The swing arm gang chuck of claim 7 wherein: The mounting disc (11) is provided with an annular groove (112) near the outer periphery of one end of the sliding frame (21); one end of the protective cover (12) abuts the groove bottom of the annular groove (112); and the inner wall of the protective cover (12) is attached to the groove wall of the annular groove (112).

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