CN-224216271-U - Tool for detecting rigidity of disc spring of swing head spindle

CN224216271UCN 224216271 UCN224216271 UCN 224216271UCN-224216271-U

Abstract

The utility model discloses a tool for detecting rigidity of a disc spring of a swinging head main shaft, which relates to the technical field of measuring tools and comprises a base plate, wherein a central groove is formed in the middle of the base plate, a central hole penetrating through the base plate is formed in the middle of the central groove, a gasket for placing the disc spring is arranged in the central groove, a pulling component for applying pulling force to the disc spring is arranged below the central hole, lifting ring components for hanging the base plate are arranged at four corners of the base plate, a connecting cylinder seat is arranged at one side of the base plate, and an inner rotating block is rotationally connected with the connecting cylinder seat.

Inventors

YU PEILIANG
ZHENG FUJIE
YANG RUI
CHEN YANG
LIU XIAOLE
JIANG GUANGHAO

Assignees

烟台环球机床装备股份有限公司
烟台环球精密机械有限公司

Dates

Publication Date: 20260508
Application Date: 20250702

Claims (8)

1. A tool for detecting rigidity of a disc spring of a swinging head spindle comprises a substrate (1) and is characterized in that a central groove (14) is formed in the middle of the substrate (1), a central hole (12) penetrating through the substrate (1) is formed in the middle of the central groove (14), a gasket (10) used for placing the disc spring (3) is arranged in the central groove (14), a pulling component used for applying pulling force to the disc spring (3) is arranged below the central hole (12), hanging ring components used for hanging the substrate (1) are arranged at four corners of the substrate (1), a connecting cylinder seat (9) is arranged on one side of the substrate (1), an inner rotation block (8) is connected in a rotating mode in the connecting cylinder seat (9), a rectangular measuring rod (6) is fixedly connected to the upper end of the inner rotation block (8), and a measuring component used for detecting deformation of the disc spring (3) is arranged on the rectangular measuring rod (6).
2. The tool for detecting the rigidity of the disc spring of the swing spindle according to claim 1, wherein the pulling assembly comprises a connecting sleeve (13), internal threads (16) are formed at two ends of the inside of the connecting sleeve (13), second flying ring screws (11) are connected in the internal threads (16) at the lower end of the connecting sleeve (13), and the internal threads (16) at the upper end of the connecting sleeve (13) are connected with threaded heads at the bottoms of pull rods (18).
3. The tool for detecting the rigidity of the disc spring of the swing spindle according to claim 1, wherein the lifting ring assembly comprises threaded holes (15), the threaded holes (15) are respectively formed in the four corners of the base plate (1), and the threaded holes (15) are internally and respectively connected with a first lifting ring screw (2).
4. The tool for detecting the rigidity of the disc spring of the swing spindle according to claim 1, wherein the measuring assembly comprises a measuring sliding sleeve (7), the measuring sliding sleeve (7) is slidably connected to the rectangular measuring rod (6), and one side of the measuring sliding sleeve (7) is fixedly connected with an L-shaped measuring rod (4).
5. The tool for detecting the rigidity of the disc spring of the swing spindle according to claim 4, wherein the upper end of the rectangular measuring rod (6) is fixedly connected with a limiting sliding block (5), and the limiting sliding block (5) is in sliding connection with the L-shaped measuring rod (4).
6. The tool for detecting the rigidity of the disc spring of the swing spindle according to claim 4, wherein the surface of the rectangular measuring rod (6) is carved with scale marks (17).
7. The tool for detecting the rigidity of a disc spring of a swing spindle according to claim 1, wherein four corners of the base plate (1) are arc-shaped.
8. The tool for detecting the rigidity of the disc spring of the swing head spindle according to claim 1, wherein a flange is fixedly connected to the lower end of the connecting cylinder seat (9), and the flange is fixed on the base plate (1) by adopting screws.

Description

Tool for detecting rigidity of disc spring of swing head spindle Technical Field The utility model relates to the technical field of measuring tools, in particular to a tool for detecting the rigidity of a disc spring of a swing head main shaft. Background In the field of modern machining, a swinging head is the most commonly used accessory of a gantry machining center machine tool, and after the swinging head is mounted on the machine tool, a cutter is mounted in a BT50 taper hole at the front end of a swinging head spindle. The main shaft of the swinging head adopts a disc spring as a core element for tensioning the cutter, and tension force is generated through elastic deformation of the disc spring, so that the cutter is ensured to be accurately positioned in the high-speed rotation processing process. According to industry standard and actual processing requirement, the broach force provided by the disc spring needs to be strictly controlled within 1500-1800kgf, excessive pulling force can cause excessive abrasion of the contact surface of the tool and the main shaft, the processing precision is affected, and insufficient pulling force can cause loosening of the tool, even safety accidents. Therefore, accurate detection of disc spring performance becomes an important link for spindle maintenance. When the spindle broach force is abnormal, maintenance personnel need to adjust the disc spring assembly or troubleshoot the disc spring assembly. However, the disc spring is used as a standard elastic element, and the performance abnormality of the disc spring is hidden, namely, the fatigue damage of the single disc spring cannot be directly judged by naked eyes, and the conventional measuring tool can only detect the external dimensions of the disc spring, such as the external diameter, the thickness, the free height and the like, and cannot acquire the core performance parameter-rigidity (namely, the deformation of the disc spring under a specific load). The abnormal rigidity is a main cause of unstable broach force, for example, the problems of plastic deformation, heat treatment process defects or material fatigue and the like of a disc spring caused by long-term load can lead the actual rigidity to deviate from a design value, thereby affecting the tension accuracy of a main shaft. The existing industrial detection means mainly depend on professional equipment such as spring pressure testing machines, stiffness testing machines and the like. The equipment can accurately measure the load-deformation curve of the disc spring, but has the obvious limitations that firstly, the equipment is large in size and high in weight, needs to be fixedly installed in a laboratory or a professional detection place and cannot meet the requirement of quick investigation on a swing head debugging site, secondly, the cost of a single equipment is generally more than hundreds of thousands of yuan, the operation needs to be participated by professional technicians, the economy of frequently using the equipment for daily maintenance is low for small and medium-sized processing enterprises, thirdly, the detection flow is complex, and the disc spring assembly needs to be disassembled and transported to the detection place, so that the swing head debugging time is prolonged, and the production efficiency is influenced. The fault detection of the swinging main shaft has the characteristic of typical 'on-site', and debugging personnel need to position the problem in a short time, so that production interruption caused by overlong detection time is avoided. Therefore, we provide a tool for detecting the rigidity of a disc spring of a swing head spindle to solve the above-mentioned problems. Disclosure of utility model The utility model aims to provide a tool for detecting the rigidity of a disc spring of a head swing main shaft, which aims to solve the problems in the background technology. In order to achieve the above purpose, the present utility model provides the following technical solutions: The utility model provides a swing main shaft dish spring rigidity detects instrument, includes the base plate, the centre groove has been seted up in the middle of the base plate, has seted up the centre bore that runs through the base plate in the middle of the centre groove, be equipped with the gasket that is used for laying the dish spring in the centre groove, the centre bore below is equipped with and is used for applying tensile pulling assembly to the dish spring, four angles of base plate all are equipped with and are used for hanging the rings subassembly of base plate, one side of base plate is equipped with the connection barrel holder, the connection barrel holder internal rotation is connected with the internal rotation piece, internal rotation piece upper end fixedly connected with rectangle measuring stick, is equipped with the measuring assembly that is used for detecting dish spring deflection on the rectangle measuring s