Part installation tool

[0029] Example one

[0030] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0031] Such as Figure 1-Figure 6 As shown, figure 1 It is a schematic diagram of the structure of the parts installation tool provided by the present invention; figure 2 Is a schematic diagram of the assembly relationship mentioned in the present invention; image 3 Schematic diagram of the split chuck provided for the present invention Figure one; Figure 4 Schematic diagram of the split chuck provided for the present invention Figure II; Figure 5 Schematic diagram of the base provided by the present invention; Image 6 This is a schematic diagram of the mandrel provided by the present invention. The present invention provides a component installation tool, which includes a base 20, a plurality of split chucks 10 and a mandrel 30, wherein the base 20 has a threaded hole 21, the mandrel 30 has an external thread, and the mandrel 30 passes through the threaded hole. 21 is connected to the base 20, and can move up and down in the threaded hole 21 through external threads; a plurality of split chucks 10 are installed on the base 20, and the split chucks 10 can respectively move along the radial direction of the base 20, and the split chucks The disc 10 has a fan-shaped structure. The inner corner of the split chuck 10 is provided with a first notch 11. The first notches 11 of the multiple split chucks 10 enclose an accommodating cavity. In the corresponding space, the containing cavity is located above the threaded hole 21. After the mandrel 30 passes through the threaded hole 21, the truncated cone-shaped extrusion head 31 provided on the first end of the mandrel 30 is just in the containing cavity. 31 is a structure with a small upper end and a large lower end. The side surface of the extrusion head 31 is an arc surface; the second end of the mandrel 30 is a polygonal structure, or specifically a regular polygonal structure, such as a regular hexagon or a regular octagonal structure; The configuration is a polygonal structure, which is convenient for the user to rotate the mandrel 30.

[0032] When working, the base 20 is fixed on the work surface through the fixing hole 23, and the mandrel 30 is rotated to make the mandrel 30 move up and down along the threaded hole 21, thereby driving the extrusion head 31 to move up and down. The extrusion heads 31 are located in multiple splits. In the accommodating cavity enclosed by the first notch 11 of the chuck 10, when the extruding head 31 moves upward, the upper end of the extruding head 31 first starts to generate thrust on the split chuck 10, so that the split chuck 10 moves along the base 20. As the extrusion head 31 moves upwards, the lower end of the extrusion head 31 provides a greater thrust to the split chuck 10, which makes the split chuck 10 expand in a larger range. The outer circular surface of the chuck 10 corresponds to a damping band. When the split chuck 10 expands outward, the damping band is expanded so that the inner diameter of the damping band is increased to be larger than the outer diameter of the welded bellows, and then the welding bellows The tube is installed in the inner diameter of the damping band. Based on the expansion effect of the split chuck 10, the damping band will not hinder the installation process of the welded bellows. Therefore, the casing, the damping band and the welded bellows can achieve the correct assembly relationship . When the welded bellows passes through the inner diameter area of ​​the damping band, the mandrel 30 is rotated in the reverse direction, and the mandrel 30 moves downwards. The pressing effect of the extrusion head 31 on the split chuck 10 disappears, and the split chuck 10 is The relative action of the belt disappears, and the split chuck 10 shrinks along the radial direction of the base 20. When the outer diameter of the split chuck 10 is smaller than the minimum inner diameter of the shell, the shell can be removed from the installation tool to complete the assembly.

[0033] It can be seen that, in the embodiment of the present invention, the vertical movement of the mandrel 30 is converted into the horizontal movement of the split chuck 10, so that the damping band in the groove in the narrow space is expanded outward, so that the shell, the damping band and the welding The corrugated pipe realizes the correct assembly relationship and improves the assembly quality.

[0034] The split chuck 10 can move on the base 20 along the radial direction of the base 20, such as Figure 5 As shown, the specific implementation can be as follows: a radial guide groove 22 is provided on the first surface of the base 20, a radial slider 12 is provided at the bottom of the split chuck 10, and the radial slider 12 is arranged in the radial guide groove. 22, the radial guide groove 22 restricts the movement path of the split chuck 10.

[0035] It should be noted that, in the embodiment of the present invention, a sliding rail may be installed on the first surface of the base 20, and a sliding block may be installed on the bottom surface of the split chuck 10.