CN207991440U - Coaxiality detection tooling - Google Patents

Abstract

The utility model relates to a coaxiality detection tool, which belongs to the technical field of shaft parts detection. Including the bottom plate, there is a slide rail on the bottom plate, there are two support blocks on the slide rail, one of the support blocks is fixed at one end of the slide rail, and a fixed plate parallel to the slide rail is provided on one side of the support block, and a fixed plate is set on the fixed plate. The fixed groove is a through groove, and the fixed groove is provided with a fixed bolt; the upper end of the support block is provided with a V-shaped groove, the slide rail is a dovetail slide rail, and the dovetail groove matched with the dovetail slide rail is provided at the bottom of the support block. The utility model has the advantages of simple structure, convenient operation and accurate measurement.

Description

Coaxiality detection tooling

technical field

The utility model relates to a coaxiality detection tool, which belongs to the technical field of detection of shaft parts.

Background technique

After the motor is damaged, the motor bearing is damaged or the load end is overloaded, causing the motor to be damaged, which will cause the load end of the shaft to jump. The rotor shaft of the motor is a slender shaft. When the motor is damaged, the coaxiality of the rotor shaft will sometimes be destroyed, resulting in the motor not working Work. Motor maintenance usually requires special tools, and professional motor maintenance centers are required for inspection and maintenance, which is very costly.

At present, there are the following technical defects in the detection of the coaxiality of the motor rotor shaft:

1. At present, image measurement and three-coordinate measuring instruments are usually used to measure the coaxiality of the shaft, but such instruments are expensive, the parts of the instrument are easily damaged during use, the maintenance cost is high, and the measurement efficiency is not high. There are high requirements on the measurement environment in the process, and it is difficult to be widely used in more fields;

2. There are relatively simple three-grip chuck type and thimble type, which are costly, difficult to operate, and have large limitations. Some rotor shaft output ends have holes with wires, and the thimble type cannot be used.

Utility model content

The purpose of the utility model is to provide a coaxiality detection tool with simple structure, easy operation and accurate measurement.

The coaxiality detection tool described in the utility model includes a bottom plate, a slide rail is arranged on the bottom plate, two support blocks are arranged on the slide rail, one of the support blocks is fixedly arranged at one end of the slide rail, and one side of the support block is provided with a The fixed plate is parallel to the slide rail. The fixed slot is provided on the fixed plate. The fixed slot is a through slot and the fixed bolt is arranged in the fixed slot. The upper end of the support block is provided with a V-shaped groove. The slide rail is a dovetail slide rail. The slide rails match the dovetail grooves.

According to the length of the shaft, move the slidable support block to a suitable position, tighten the fixing bolts, place the rotor shaft in the V-shaped groove of the two support blocks and fix it, and set the digital indicator on the slidable support block. Adjust the position of the digital display dial indicator and the rotor shaft, turn the rotor shaft manually, that is, turn the rotor shaft with a wrench in hand, measure and record the data, and determine whether it meets the coaxiality requirements.

Further preferably, a ventilation slot is provided at the top of the dovetail groove at the bottom end of the support block. The sliding between the support block and the slide rail is smoother.

Further preferably, corresponding to the ventilation groove, a slide groove is provided at the top of the dovetail slide rail. The sliding between the support block and the slide rail is smoother.

Further preferably, auxiliary positioning plates are provided on both sides of the bottom of the support block. Strengthening the strength of the support block can ensure a good support for the rotor shaft and ensure accurate measurement.

Further preferably, the bottom of the auxiliary positioning plate is adapted to the bottom plate.

Further preferably, corresponding to the fixing bolts, fixing holes are provided on the auxiliary positioning plate. When the bolt is tightened, the bolt enters into the fixing hole and clamps the support block.

Further preferably, the fixing hole is a threaded hole. The bolts and the threaded holes are matched by threads, and the fastening effect is better.

The technical problem to be solved by this patent technology is to provide a coaxiality measuring tool with simple structure, convenient use, small space occupation, low environmental requirements, small use limitations, and multi-use function. In order to achieve the above purpose, V-shaped iron is used for the position of the shaft, and the whole material is made of stainless steel. The material is hard, does not rust, and is not easy to deform. It only needs a small platform to install; On the V-shaped iron, it is satisfied with the measurement of each position of the shaft;

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model can accurately measure the coaxiality of the rotor shaft by setting the bottom plate and the support block, which simplifies the maintenance work, has a simple structure, a small space, low environmental requirements, small use limitations, and a wide range of applications. It can be applied to Factory without mechanical processing;

2. The V-shaped groove is set on the support block, the contact surface is small, the friction force is small, the manual rotation is labor-saving, the error is small, and it is not easy to wear;

3. By setting the V-shaped groove on the support block, it is convenient and simple to detect the coaxiality of different shaft diameters and different positions on a long axis, which greatly reduces labor costs, time costs, and manufacturing costs.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of an embodiment of the present utility model,

Fig. 2 is a top view structure schematic diagram of an embodiment of the utility model,

Fig. 3 is a schematic structural diagram of a support block according to an embodiment of the present invention.

In the figure: 1, the first support block 2, the bottom plate 3, the slide rail 4, the fixed plate 5, the fixed groove 6, the second support block;

3.1, dovetail slide rail 3.2, chute;

6.1, V-groove 6.2, auxiliary positioning plate 6.3, dovetail groove 6.4, ventilation groove 6.5, fixing hole.

Detailed ways

The technical solutions in the embodiments of the present invention will be further clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention:

As shown in Figures 1 to 2, the coaxiality detection tooling described in the utility model includes a base plate 2, a slide rail 3 is provided on the base plate 2, and two support blocks are provided on the slide rail 3, one of which is fixed Set at one end of the slide rail 3, one side of the support block is provided with a fixed plate 4 parallel to the slide rail 3, a fixed groove 5 is set on the fixed plate 4, the fixed groove 5 is a through groove, and a fixed bolt is arranged in the fixed groove 5; the support block A V-shaped groove 6.1 is provided at the upper end, the slide rail 3 is a dovetail slide rail 3.1, and a dovetail groove 6.3 matched with the dovetail slide rail is provided at the bottom of the support block. The support block includes a first support block 1 and a second support block 6, the first support block 1 is fixedly arranged, and the second support block 6 can slide along the slide rail. The first support block can be a first support block of iron, and the second support block can be a second support block of iron.

Ventilation groove 6.4 is provided at the top of dovetail groove 6.3 at the bottom of the support block. Corresponding to the ventilation groove 6.4, a chute 3.2 is provided at the top of the dovetail slide rail 3.1.

Auxiliary positioning plates 6.2 are provided on both sides of the bottom of the support block. The bottom of the auxiliary positioning plate 6.2 is adapted to the base plate 2.

Corresponding to the fixing bolts, the auxiliary positioning plate 6.2 is provided with fixing holes 6.5. The fixing hole 6.5 is a threaded hole.

The first support block can be fastened on the bottom plate by two positioning pins and three screws; the bottom plate can be a stainless steel bottom plate; It will shake left and right, increase the contact area, improve its stability, and reduce errors; the auxiliary positioning plate 6.2 can ensure that the second support block and the first support block are on the same plane, and the second support block can be fixed with fixing bolts. Fixing is performed to reduce the error generated when the rotor shaft rotates on the first support block and the second support block.

Working process or working principle:

According to the length of the shaft, move the second support block to a suitable position, tighten the fixing bolts, place the rotor shaft in the V-shaped groove of the two support blocks and fix it, and set the digital display dial indicator on the second support block. The dial indicator can be a magnetic suction digital display dial indicator, and the second support block can be an iron second support block. The magnetic suction digital display dial indicator is adsorbed to the second iron support block. Adjust the magnetic suction digital display The position of the dial indicator and the rotor shaft is manually turned, that is, the rotor shaft is turned with a wrench in hand, and the recorded data is measured to determine whether it meets the coaxiality requirements.

The description of the direction and relative position of the structure in the present invention, such as the description of front, back, left, right, up and down, does not constitute a limitation of the present invention, but is only for convenience of description.

Claims (7)

1. A kind of coaxiality detection frock is characterized in that, comprises base plate (2), is provided with slide rail (3) on base plate (2), is provided with two support blocks on slide rail (3), wherein a support block Fixedly installed at one end of the slide rail (3), the side of the support block is provided with a fixed plate (4) parallel to the slide rail (3), and a fixed groove (5) is provided on the fixed plate (4), and the fixed groove (5) is a through Groove, fixed groove (5) is provided with fixed bolt; The upper end of the support block is provided with a V-shaped groove (6.1), the slide rail (3) is a dovetail slide rail, and the bottom end of the support block is provided with a dovetail groove (6.3) matched with the dovetail slide rail. 2. The coaxiality detection tool according to claim 1, characterized in that, the top of the dovetail groove (6.3) at the bottom of the support block is provided with a ventilation groove (6.4). 3. The coaxiality detection tool according to claim 1, characterized in that, corresponding to the ventilation groove (6.4), a chute (3.2) is provided at the top of the dovetail slide rail. 4. The coaxiality detection tool according to claim 1, characterized in that auxiliary positioning plates (6.2) are provided on both sides of the bottom of the support block. 5. The coaxiality detection tool according to claim 4, characterized in that, the bottom of the auxiliary positioning plate (6.2) is set in conformity with the bottom plate (2). 6. The coaxiality detection tool according to claim 4, characterized in that, corresponding to the fixing bolts, the auxiliary positioning plate (6.2) is provided with fixing holes (6.5). 7. The coaxiality detection tool according to claim 6, characterized in that the fixing hole (6.5) is a threaded hole.