Mirror roller roundness detection base

Abstract

The utility model provides a mirror surface roller roundness detection base belongs to roundness detection technical field. A mirror surface roller roundness detection base, including at least two three -dimensional parallel settings recess fixed block, recess fixed block side upper vertical through the at least three positioning slot, two the positioning slot is supported in the rotation connection with the rolling bearing through the limiting shaft. The utility model is opposite to the roller body of different length, need not to adjust the position of tailstock even to replace the whole tailstock component, only need to utilize the on -off type magnetic attraction base quick adjustment its span can. Its adjustment process is simple, can satisfy modern production line fast rhythm, the detection demand of many varieties.

Description

Technical Field

[0001] This utility model belongs to the field of roundness detection technology, specifically relating to a roundness detection base for mirror rollers. Background Technology

[0002] In the field of precision inspection of roundness error and radial runout, traditional center-based measuring devices have long been considered a fundamental and widely used technique. These devices use precision-machined center holes at both ends as a reference, forcing the workpiece's rotation axis to coincide with the machine tool spindle axis through center positioning, thus theoretically providing a stable and unique reference for subsequent sensor measurements. The theoretical completeness of this method allows it to exhibit good repeatability and accuracy under standardized inspection environments and laboratory conditions, especially suitable for shaft-type parts with intact center holes and moderate weight and length. However, as modern industrial manufacturing continues to evolve towards larger scale, integration, and on-site operation, the inherent limitations of this center-based inspection device are becoming increasingly apparent in actual production applications. The primary limitation lies in the stringent requirements for the reference elements of the workpiece being measured. The normal operation of the center-based device depends entirely on the pre-machined center holes at both ends of the workpiece. This not only means that roller-type workpieces without center holes are directly excluded from the measurable range, but even for workpieces with center holes, the machining quality, cleanliness, and possible impact damage of the center holes can directly introduce significant measurement errors, even making effective clamping impossible. Maintaining the perfect condition of the center hole in harsh industrial environments is often a serious challenge.

[0003] Secondly, the device faces significant practical challenges and safety risks when handling heavy rollers. Precisely hoisting and setting up a massive, heavy roller between two narrow centers is an operation with extremely high precision requirements and great danger. During the process, even slight misalignment can easily cause the roller surface to scrape against the centers, or even lead to a workpiece slipping and causing a safety accident. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a mirror roller roundness detection base to address the shortcomings of existing top-of-the-line detection devices.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A mirror roller roundness detection base includes at least two aligned square groove fixing blocks. At least three positioning grooves are vertically opened through the upper side of each groove fixing block. Rolling bearings are rotatably connected to two of the positioning grooves via limiting shafts.

[0007] Furthermore, the positioning groove is a rectangular structure; the parts at both ends of the limiting shaft that cooperate with the positioning groove have an elliptical doorway-shaped cross section, with its bottom tightly fitting with the rectangular positioning groove and its top having a semi-circular transition structure.

[0008] Furthermore, the limiting shaft portion located inside the groove of the groove fixing block is engaged with the inner side of the groove of the groove fixing block for limiting engagement.

[0009] Furthermore, the bottom of the groove fixing block is integrally provided with a switch-type magnetic base.

[0010] Preferably, the rolling bearing is a double-row cylindrical roller bearing.

[0011] Compared with existing technologies, this invention abandons the absolute reliance on the center hole and instead utilizes the workpiece's inherent precision journal, which serves as its actual working reference, for support and positioning. A V-shaped low-runout rolling bearing frame simulates the actual rotation of the workpiece in the final application equipment, thus cleverly converting the actual working reference of the workpiece under test directly into a measurement reference. Technically, it cleverly avoids many bottlenecks of the center-mount method and achieves a significant leap from "theoretical reference" to "operating condition reference," enabling more efficient and reliable roundness and runout detection in complex and realistic industrial environments. Furthermore, when dealing with rollers of varying lengths, there is no need to readjust the position of the center mount or even replace the entire tailstock assembly; only a switchable magnetic base is needed to quickly adjust its span positioning. The adjustment process is simple, and hoisting is convenient, meeting the fast-paced, multi-variety testing needs of modern production lines. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings.

[0013] Figure 1 : A three-dimensional structural schematic diagram of an embodiment of this utility model;

[0014] Figure 2 : One of the schematic diagrams of the groove fixing block in use of this utility model;

[0015] Figure 3 : The second schematic diagram of the groove fixing block in use of this utility model;

[0016] Figure 4 Side view of the groove fixing block of this utility model;

[0017] Among them, 1-groove fixing block, 11-positioning groove, 2-limiting shaft, 3-rolling bearing, 4-switch type magnetic base. Detailed Implementation

[0018] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0019] There is a fundamental difference between the measurement datum of the centering device and the actual working datum of the workpiece. The centering device establishes an ideal theoretical axis of rotation, while most roller parts, when finally installed and used, use the journals or bearing positions at both ends as the support datum and rotate around this axis. Therefore, the roundness or runout data measured with the center hole as the datum does not actually reflect the comprehensive accuracy performance of the workpiece under its actual working conditions, and there is a certain disconnect between the measurement results and the quality control targets of the final product.

[0020] This utility model provides a roundness detection base for a mirror roller, including at least two aligned square groove fixing blocks 1. Each groove fixing block 1 has at least three positioning grooves 11 vertically penetrating its upper side. Rolling bearings 3 are rotatably connected to two of the positioning grooves 11 via limiting shafts 2. The groove fixing blocks 1 serve as the skeleton of the entire base, with the multiple positioning grooves 11 engaging with the limiting shafts 2 to achieve multi-level adjustable positioning in the horizontal direction. The "three-dimensional parallel" arrangement of the two groove fixing blocks 1, combined with the rolling bearings 3, forms a spatial support, constituting a V-shaped rolling bracket. The roller's journal (working mounting position) serves as the measurement reference plane; ensuring that the mirror roller is automatically centered under gravity upon placement, guaranteeing that the axis of the mirror roller is consistent with the detection reference.

[0021] Furthermore, the positioning groove 11 has a rectangular structure; the portions of the limiting shaft 2 that mate with the positioning groove 11 have an elliptical doorway-shaped cross-section, with its bottom tightly fitting the rectangular positioning groove 11 and its top having a semi-circular transition structure. Through the gap-limiting fit between the two ends of the limiting shaft 2 with the positioning groove 11, the rolling bearing 3 can be quickly adjusted and positioned. The semi-circular transition structure at the top reduces the influence of sharp edges, minimizing damage caused by collisions that may occur when the mirror roller moves up and down the base platform.

[0022] Furthermore, the portion of the limiting shaft 2 located inside the groove of the groove fixing block 1 is engaged with the inner side of the groove of the groove fixing block 1 for limiting and locking. This restricts the axial movement of the rolling bearing 3 driven by the middle section of the limiting shaft 2, thereby affecting the measurement accuracy.

[0023] Furthermore, the bottom of the groove fixing block 1 is integrally provided with a switchable magnetic base 4. The switchable magnetic base 4 utilizes a combination of permanent magnets and soft magnetic materials. By toggling a switch to change the magnetic circuit path, it controls whether the magnetic force is manifested, thereby generating a magnetic attraction force. The switchable magnetic base 4 quickly and rigidly connects the base to the external steel platform, forming a stable reference and making the measurement more accurate. The magnetic circuit switch design facilitates transportation and allows for quick assembly and disassembly without the need for bolt tightening.

[0024] Preferably, the rolling bearing 3 is a double-row cylindrical roller bearing. The inner ring of the rolling bearing 3 is installed in the middle section of the limiting shaft by an interference fit, while the outer ring makes rolling contact with the mirror roller to be measured. The double-row cylindrical roller bearing can simultaneously withstand radial loads and a small amount of axial load, ensuring that the roller rotates flexibly without axial movement.

[0025] When using it, first place the two groove fixing blocks 1 on a flat cast iron platform according to the span of the mirror roller to be measured, and use baffles and other components to align the two groove fixing blocks 1.

[0026] Secondly, based on the diameter of the mirror roller, a suitable positioning groove 11 is selected and engaged with the limiting shaft 2 equipped with the ball bearing 3. During insertion, the bottom plane of the elliptical door-shaped cross-section fits tightly with the bottom surface of the positioning groove 11, and the semi-circular transition structure at the top reduces the possibility of damage to the mirror roller.

[0027] Then, the mirror roller to be measured is lifted up so that the two ends of the mirror roller, the two ends of the power transmission mounting parts, or the two ends of the heavy roller are mounted on the V-shaped rolling bracket composed of four rolling bearings 3 on two grooved fixing blocks 1. The roller body can then automatically balance and align itself along the direction of gravity.

[0028] Finally, after the mirror roller has self-centered under the action of gravity, the handle of the switch-type magnetic base 4 is turned to change the magnetic circuit path of the switch-type magnetic base 4, control the external magnetic force, and make it firmly adsorbed on the cast iron platform, thus completing the base fixation and making the whole system rigidly connected.

[0029] Then, the roller can be rotated to measure its roundness using a roundness measuring instrument. The roundness measured in this way more clearly reflects the overall accuracy of the workpiece under its actual working condition, and the three-dimensional error measurement of the actual rotational runout of the roller is more accurate.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A roundness detection base for mirror rollers, characterized in that: It includes at least two aligned square groove fixing blocks, and at least three positioning grooves are vertically opened through the upper side of each groove fixing block. Rolling bearings are rotatably connected in two of the positioning grooves by means of a limiting shaft.

2. The mirror roller roundness detection base according to claim 1, characterized in that: The positioning groove is a rectangular structure; the two ends of the limiting shaft that cooperate with the positioning groove have an elliptical doorway-shaped cross section, with the bottom tightly fitting the rectangular positioning groove and the top having a semi-circular transition structure.

3. The mirror roller roundness detection base according to claim 2, characterized in that: The limiting shaft portion located inside the groove of the groove fixing block is limited and engaged with the inner side of the groove of the groove fixing block.

4. The mirror roller roundness detection base according to claim 1, characterized in that: The bottom of the groove fixing block is integrally equipped with a switch-type magnetic base.

5. The mirror roller roundness detection base according to claim 1, characterized in that: The rolling bearing is a double-row cylindrical roller bearing.

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