一种阀盖螺纹加工防偏移夹具

Abstract

本实用新型公开了一种阀盖螺纹加工防偏移夹具，包括安装架，所述安装架的顶部固定连接有支架，所述支架的顶部周向均匀分布有四组螺纹槽，所述螺纹槽的内部螺纹连接有螺纹杆，所述螺纹杆的顶部固定连接有定位销，所述支架的顶部周向均匀分布有四个导槽，所述导槽的内部滑动连接有滑块，所述滑块的顶部固定连接有固定夹板，所述固定夹板靠近支架中心的一侧固定连接有定位弹片。本实用新型通过将定位销插入到阀盖的安装孔内，旋转定位销并使螺纹杆不断旋入到对应的螺纹槽内，以避免产生偏移，固定夹板移动并向阀盖靠近，从而将其位置固定，且阀盖和定位弹片接触，在加工时阀盖震动并挤压定位弹片，通过定位弹片形变可避免阀盖过度挤压产生磨损。

Claims

1. A valve cover thread chasing anti- drift fixture comprising a mounting frame (1) characterised in that: The top of the mounting bracket (1) is fixedly connected to a bracket (2). The top of the bracket (2) is evenly distributed with four sets of threaded grooves (3). The threaded grooves (3) are threadedly connected with threaded rods (4). The top of the threaded rods (4) is fixedly connected with positioning pins (5). The top of the bracket (2) is evenly distributed with four guide grooves (6). The guide grooves (6) are slidably connected with sliders (7). The top of the sliders (7) is fixedly connected with a fixing plate (8). The fixing plate (8) is fixedly connected with a positioning spring (9) on the side near the center of the bracket (2).

2. A valve cover thread chasing anti-walk clamp as defined in claim 1 wherein: A cylinder (10) is fixedly connected to one side of the mounting bracket (1), and a connecting plate (11) is fixedly connected to the bottom of the mounting bracket (1). A rack plate (12) is slidably connected between the connecting plate (11) and the mounting bracket (1), and the rack plate (12) is fixedly installed on the output rod of the cylinder (10).

3. A valve cover threading anti-walk clamp as defined in claim 1 wherein: The mounting bracket (1) is rotatably connected to a rotating shaft (13), and a rotating gear (14) is fixedly sleeved on the surface of the rotating shaft (13). The rotating gear (14) meshes with the rack plate (12).

4. A valve cover thread chasing anti-walk clamp as defined in claim 3 wherein: A drive plate (15) is fixedly connected to the top of the rotating shaft (13), and connecting rods (16) are fixedly connected to the four corners of the top of the drive plate (15). A pull rod (17) is rotatably connected to the surface of the connecting rod (16).

5. A valve cover threading anti-walk clamp as defined in claim 1 wherein: The mounting bracket (1) has four guide rails (18) evenly distributed around its top circumference. A slide block (19) is slidably connected to the top of the guide rail (18). A side plate (20) is fixedly connected to one side of the slide block (19). The side plate (20) and the pull rod (17) are rotatably connected.

6. A valve cover thread chasing anti-walk clamp as defined in claim 1 wherein: The fixed clamp (8) is fixedly connected to a back plate (21) on the side opposite to the positioning spring (9). The top of the back plate (21) is fixedly connected to a lower rotating seat (22), and the top of the lower rotating seat (22) is rotatably connected to an electric push rod (23).

7. A valve cover threading anti-walk clamp as defined in claim 1 wherein: The top of the fixed clamp (8) is fixedly connected to the mounting base (24), the top of the mounting base (24) is rotatably connected to the rotating block (25), the top of the rotating block (25) is fixedly connected to the rotating frame (26), the bottom edge of the rotating frame (26) is fixedly connected to the upper rotating seat (27), the upper rotating seat (27) is rotatably mounted on the top of the electric push rod (23), and the side of the rotating frame (26) away from the upper rotating seat (27) is rotatably connected to the positioning roller (28).

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