CN219624708U

CN219624708U - Crookedness measuring device

Info

Publication number: CN219624708U
Application number: CN202320485968.2U
Authority: CN
Inventors: 罗庆鸿; 黄宇彬; 毛远兴; 余飞
Original assignee: Vital Thin Film Materials Guangdong Co Ltd
Current assignee: Vital Thin Film Materials Guangdong Co Ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-09-01
Anticipated expiration: 2033-03-14

Abstract

The utility model belongs to the technical field of measuring equipment, and relates to a bending measuring device. Comprises a rotating rod, a distance measuring device, a mounting ring and a connecting structure; the plurality of mounting rings are respectively arranged at two ends of the inner cavity of the target back tube, the mounting rings are rotatably arranged on the outer wall of the rotating rod through the connecting structure, the rotating rod can axially move relatively to the plurality of connecting structures, and the distance measuring device comprises a sensor which is fixedly arranged on the rotating rod. The utility model can measure the curvature of the back tube inner cavity by arranging the mounting ring, the distance measuring device, the rotating rod and the connecting structure, has simple structure and convenient operation, and can be used together with the straightening device.

Description

Crookedness measuring device

Technical Field

The utility model belongs to the technical field of measuring equipment, relates to a bending measuring device, and particularly relates to a measuring device for bending degree of a back tube of a rotary target material.

Background

As a branch of metal processing, straightening is widely used in the daily metal processing industry, the instrument and meter manufacturing industry, the automobile, ship and airplane manufacturing industry, the petrochemical industry, the metallurgical industry, the building material industry, the mechanical equipment manufacturing industry, the precision machining manufacturing industry and the like, and the straightening technology is mostly used in the post-process of metal strip processing, so that the quality level of the finished product is determined to a great extent.

After the integral target is poured, the back tube inside the target is likely to bend, but the appearance of the target is still a straight cylindrical shape, the bending degree of the target plays a decisive role in the uniformity of the wall thickness of the rotary target, whether the bending degree after straightening has a great influence on the yield or not is judged, the back tube inside the target cannot be measured from the outside through a circle-measuring jumping method, the circle-measuring jumping is carried out on the inside in a limited space of the back tube by using a dial indicator, on one hand, the operation is very inconvenient, on the other hand, the reading of the dial indicator cannot be directly watched in real time, the efficiency is low, and whether the target meets the requirement or not through measuring the bending degree (bending degree) of the back tube while straightening the target.

Disclosure of Invention

The utility model aims to solve the technical problems that: the utility model provides a crookedness measuring device can find the position that the dorsal scale pipe is crooked the most fast, and can cooperate the coalignment to use.

The technical scheme provided by the utility model is as follows:

a curvature measuring device comprises a rotating rod, a distance measuring device, a mounting ring and a connecting structure;

the installation ring is rotatably installed on the outer wall of the rotating rod through the connecting structure, the rotating rod can axially move relative to the connecting structure, the distance measuring device comprises a sensor, and the sensor is fixedly arranged on the rotating rod.

Preferably, the connecting structure comprises an inner ring and a rolling element, the inner ring is arranged in the mounting ring, the rolling element is arranged between the inner ring and the mounting ring, the inner ring is provided with a central hole, and the rotating rod is arranged in the central hole.

Preferably, the inner ring is provided with a plurality of through grooves, the through grooves are distributed in an annular array, and at least one fastener is arranged in each through groove to fix the rotating rod.

Preferably, a boss is arranged at one end of the inner ring, the central hole penetrates through the boss, and at least one fastener is arranged on the boss to fix the rotating rod.

Preferably, the connecting structure is a round hole and a rotating shaft, the rotating shaft is rotationally connected with the round hole, the round hole is the inner wall of the mounting ring, and the rotating shaft is arranged at two ends of the rotating rod.

Preferably, the mounting ring is provided with a plurality of through grooves, the plurality of through grooves are distributed in an annular array, and at least one fastener is arranged on the inner wall of the through groove to fix the rotating rod.

Preferably, one end of the mounting ring is provided with a round table, the round hole penetrates through the round table, and the round table is provided with at least one fastener for fixing the rotating rod.

Preferably, the mounting ring further comprises a fixing device, wherein the fixing device is used for fixing the position of the mounting ring relative to the inner wall of the back pipe.

Preferably, the fixing means comprises a rubber washer provided on an outer wall of the mounting ring.

Preferably, the fixing device comprises an air bag, and the air bag is arranged on the outer wall of the mounting ring.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model can measure the curvature of the back tube inner cavity by arranging the mounting ring, the distance measuring device, the rotating rod and the connecting structure, has simple structure and convenient operation, and can be used together with the straightening device.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of an embodiment 2 of the present utility model;

FIG. 3 is a second schematic diagram of embodiment 2 of the present utility model;

FIG. 4 is a schematic diagram of an embodiment 3 of the present utility model;

FIG. 5 is a second embodiment of the present utility model;

fig. 6 is a schematic diagram of a rotary target structure according to the present utility model.

In the figure: 1. a rotating lever; 2. a distance measuring device; 21. a sensor; 3. a mounting ring; 31. a through groove; 32. round bench; 4. a connection structure; 41. an inner ring; 42. a rolling member; 43. a round hole; 44. a rotating shaft; 411. a central bore; 412. a through groove; 413. a boss; 5. a fixing device; 51. a rubber gasket; 52. an air bag.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

For clarity of description and understanding of this patent, other tool structures and equipment portion structures that can be used in addition to the tools designed in this patent are also shown in the drawings.

Example 1

Referring to fig. 1 to 5, a bending measuring device includes a rotating rod 1, a distance measuring device 2, a mounting ring 3 and a connecting structure 4;

the mounting ring 3 is rotatably mounted on the outer wall of the rotating rod 1 through the connecting structure 4, the rotating rod 1 can axially move relatively to the plurality of connecting structures 4, the distance measuring device 2 comprises a sensor 21, and the sensor 21 is fixedly arranged on the rotating rod 1.

As a further scheme, a scale for marking the angle is arranged at one end of the rotating rod 1, and a scale for marking the length is arranged on the outer wall of the rotating rod 1.

The device is inserted into the back tube of the curved target material, and always keeps the inner wall right above the direction to eliminate the influence of self gravity on the detection result. As shown by a pair of curved backing tubes which are parallel to each other and are arched upwards in figure 6, when the target is curved, there is a part which is raised relative to the central line and recessed downwards towards the center, the distance measured by the infrared range finder, namely the highest position from the central point to the projection of the curved backing tube, is a, the distance measured by rotating the target to turn the recessed position right above, is b, because the outer diameter of the target and the inner diameter of the backing tube are fixed, and when the backing tube is not curved, the distances from the backing tube to the outer diameter of the target are equal. When the back tube is bent, the distance from the back tube on the convex side to the outer diameter of the target material is smaller than that when the back tube is not bent, the distance from the concave side to the outer diameter of the target material is increased than that when the target material is not bent, the measured values of the convex position and the concave position are subtracted by 2, namely, the value c obtained by (a-b)/2 is the offset of bending (the distance from the highest position of the arc-shaped broken line convex on the same side of the central line to the horizontal broken line, the offset of a single side), which is also called warpage or bending degree, and the warpage is 0 when the target material is not bent (bending a=b, and the warpage is (a-b)/2=0). Meanwhile, the distance from the unbent back tube (a pair of broken lines parallel to the central line) to the outer diameter of the target is reduced, at the moment, the thickness left by the warping degree is subtracted by the known distance d from the unbent back tube to the outer diameter of the target, and the thickness is compared with the final thickness e of the target to be processed, so that whether the target is qualified or not can be judged, if d-c is more than or equal to e, the target is scrapped, and if d-c is more than or equal to e, the inner tube can be straightened by straightening equipment, and then the outer wall is turned, so that the target manufacturing is completed.

The outer diameter of the target material and the inner diameter of the back tube are fixed, the inner diameter of the back tube is not changed along with the bending of the back tube, and the distance between the upper part and the lower part of the bending position is still equal to the inner diameter of other positions. When the device is inserted into the back tube, the mounting ring 3 of the device is placed at the port in the back tube of the target, the rotating rod 1 of the device is parallel to the outer diameter of the target, although the back tube inside the target is bent relative to the target, the target is still not bent from the appearance, the mounting ring 3 rotates along with the target when the target rotates, the axis of the rotating rod 1 is still coincident with the axis of the target, so that the measured data is not deviated, the concentricity of the target at the port and the back tube is still the same when the cast rotating target bends, and the mounting ring 3 is placed at the position to ensure that the rotating rod 1 is parallel to the outer diameter of the target.

Furthermore, when considering that there is a gap between the mounting ring 3 and the backing tube, that is, the outer diameter of the mounting ring 3 is slightly smaller than the inner diameter of the backing tube, the center line of the mounting ring 3 is lower than the center line of the target, at this time, the measured value will be larger than the measured value of the center point of fig. 6 by a certain distance f, but the center line of the mounting ring 3 is still parallel to the center line of the target, the measured value will be larger than the measured value of the center line of the target by f, and the measured values of the raised and recessed positions of the backing tube will be increased according to the above measurement, but at the same time, the increase or decrease of an equal value will not affect the value of the warpage, so even if the infrared ranging of the device is on the center line of the target, the effect is equivalent to the amplification of the center line of the target, as long as the center line of the target and the rotating rod 1 are parallel, no matter the rotating rod 1 is below the center line of the target, the target will not affect the test result.

The measured position has three parts, namely the middle part of the target material, the middle position of the target material and the numerical values of the middle parts of the two ends, and each part measures the numerical values of eight points and writes the numerical values in the corresponding positions. The warp gauge is then moved between the three sections with the maximum of the three sections facing upwards to find the position of the target where it is most curved (i.e. the maximum value). The position of the warpage meter is fixed, the target material is rotated to measure a circle to find the minimum value, when the measurement is carried out, only one maximum value and one minimum value are in 180-degree relation, the warpage degree (the maximum value from the inner wall to the sensor and the minimum value from the inner wall to the sensor/2) is directly calculated, when the maximum value and the minimum value are not in 180-degree relation, the point of the minimum value, which passes through the center of the back tube, is used as a straight line to intersect with the point of the back tube, the position of the point, which is the middle position of the point, of the maximum value is used as the maximum value, and the position value of the point, which corresponds to the 180-degree point, is used as the minimum value.

This device can use with the coalignment cooperation, and because this device installs at the back of the body intraductal chamber, this device all leaves sufficient distance except the collar with the back of the body intraductal chamber, consequently, need not to dismantle this device when the alignment, and can in time measure the coalignment value, supplementary coalignment work improves coalignment's work efficiency.

It should be noted that, the ranging device 2 may be an ultrasonic ranging device 2, a laser ranging device 2, an infrared ranging device 2, a radar ranging device 2, or the like, when the body of the ranging device 2 (i.e. the device for processing the sensor data) is connected with the sensor 21 by using a wire, the body of the ranging device 2 is fixedly installed at one end of the rotating rod 1, and when the sensor 21 is connected with the body of the ranging device 2 by adopting a wireless connection manner, the body of the ranging device 2 is not required to be connected and fixed with the rotating rod 1.

Example 2

The connection structure 4 is further described.

Referring to fig. 2 and 3, the connecting structure 4 includes an inner ring 41 and a rolling member 42, the inner ring 41 is disposed in the mounting ring 3, the rolling member 42 is disposed between the inner ring 41 and the mounting ring 3, the inner ring 41 is provided with a central hole 411, and the rotating rod 1 is mounted in the central hole 411.

As a further solution, a mounting groove is formed in the inner wall of the mounting ring 3 and/or the outer wall of the inner ring 41, the rolling element 42 is arranged in the mounting groove, the position of the rolling element 42 is limited by the mounting groove, and the rolling element 42 can be spherical, cylindrical or conical.

It should be noted that the shape of the central hole 411 may be circular, rectangular, elliptical, polygonal, etc.

In order to fix the position of the rotating rod 1 with respect to the inner race 41, the following two schemes are proposed.

In the first scheme, the inner ring 41 is provided with a plurality of through grooves 412, the distances between the through grooves 412 are equal, and the distances from the through grooves 412 to the center of the inner ring 41 are equal, the through grooves 412 are distributed in an annular array, the through grooves 412 can be in the shape of a fan ring, a rectangle or the like, the end face of the through groove 412 close to the center hole 411 is provided with a fastener to fix the rotating rod 1, and the number of the fasteners in the through groove 412 is not limited to one.

In the second scheme, a boss 413 is arranged at one end of the inner ring 41, a central hole 411 penetrates through the boss 413, and fasteners are arranged on the boss 413 to fix the rotating rod 1, and the number of the fasteners is not limited to one.

Example 3

A connection structure 4 different from embodiment 2 is provided.

Referring to fig. 4 and 5, the connection structure 4 includes a circular hole 43 and a rotating shaft 44, the rotating shaft 44 is rotatably connected with the circular hole 43, the circular hole 43 is an inner wall of the mounting ring 3, and the rotating shaft 44 is disposed at two ends of the rotating rod 1.

In order to fix the position of the rotation lever 1 with respect to the circular hole 43, the following two schemes are proposed.

The first scheme, collar 3 are equipped with a plurality of grooves 31 that run through, and a plurality of grooves 31 interval that run through equals, and the distance to round hole 43 center equals, and a plurality of grooves 31 that run through are annular array distribution, and the groove 31 inner wall that runs through sets up the fastener and fixes dwang 1, and the quantity of fastener is not limited to one.

In the second scheme, one end of the mounting ring 3 is provided with a round table 32, a round hole 43 penetrates through the round table 32, the round table 32 is provided with fasteners to fix the rotating rod 1, and the number of the fasteners is not limited to one.

Example 4

Further improvements are made on the basis of the above-described embodiments.

And the back tube further comprises a fixing device 5, wherein the fixing device 5 is used for fixing the position of the mounting ring 3 relative to the inner wall of the back tube.

The fixing device 5 may adopt the following two schemes:

in one embodiment, the fixing device 5 comprises a rubber washer 51, and the rubber washer 51 is disposed on the outer wall of the mounting ring 3.

In a second embodiment, the fixing device 5 comprises an air bag 52, and the air bag 52 is arranged on the outer wall of the mounting ring 3.

The mounting means of the bladder 52 and the rubber gasket 51 include, but are not limited to, adhesive bonding, glue bonding, snap fitting.

It should be noted that, the fastening members in the above embodiments may be set screws, bolts, or the like.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The bending measuring device is characterized by comprising a rotating rod (1), a distance measuring device (2), a plurality of mounting rings (3) and a plurality of connecting structures (4);

the installation ring (3) is rotatably installed on the outer wall of the rotating rod (1) through the connecting structure (4), the rotating rod (1) can axially move relatively to the connecting structure (4), the distance measuring device (2) comprises a sensor (21), and the sensor (21) is fixedly arranged on the rotating rod (1).

2. Measuring device according to claim 1, characterized in that the connecting structure (4) comprises an inner ring (41) and a rolling element (42), the inner ring (41) being arranged in the mounting ring (3), the rolling element (42) being arranged between the inner ring (41) and the mounting ring (3), the inner ring (41) being provided with a central hole (411), the rotating rod (1) being mounted in the central hole (411).

3. The measuring device according to claim 2, wherein the inner ring (41) is provided with a plurality of through grooves (412), the plurality of through grooves (412) are distributed in an annular array, and at least one fastener is arranged in the through grooves (412) to fix the rotating rod (1).

4. Measuring device according to claim 2, characterized in that one end of the inner ring (41) is provided with a boss (413), the central hole (411) extending through the boss (413), the boss (413) being provided with at least one fastener for fixing the rotating rod (1).

5. The measuring device according to claim 1, characterized in that the connecting structure (4) is a round hole (43) and a rotating shaft (44), the rotating shaft (44) is rotatably connected with the round hole (43), the round hole (43) is an inner wall of the mounting ring (3), and the rotating shaft (44) is arranged at two ends of the rotating rod (1).

6. The measuring device according to claim 5, characterized in that the mounting ring (3) is provided with a plurality of through grooves (31), the plurality of through grooves (31) are distributed in an annular array, and at least one fastener is arranged on the inner wall of the through groove (31) to fix the rotating rod (1).

7. Measuring device according to claim 5, characterized in that one end of the mounting ring (3) is provided with a circular table (32), the circular hole (43) penetrating the circular table (32), the circular table (32) being provided with at least one fastener for fixing the rotating rod (1).

8. The measuring device according to any of claims 1-7, further comprising fixing means (5), said fixing means (5) being adapted to fix the position of said mounting ring (3) relative to the inner wall of the back tube.

9. The measuring device according to claim 8, characterized in that the fixing means (5) comprise a rubber washer (51), which rubber washer (51) is arranged on the outer wall of the mounting ring (3).

10. The measuring device according to claim 8, characterized in that the fixing device (5) comprises an air-bag (52), which air-bag (52) is arranged at the outer wall of the mounting ring (3).