Cylindrical roller contour measuring device

Abstract

The utility model discloses a cylindrical roller contour measuring device which comprises a positioning mechanism used for axially positioning a cylindrical roller and a driving mechanism used for driving the cylindrical roller to rotate along the axial direction, and two ends of the cylindrical roller are respectively provided with a first end face run-out detection sensor and a second end face run-out detection sensor. And a circular run-out detection sensor is arranged in the radial direction of the cylindrical roller. According to the utility model, cylindrical rollers with different diameters and lengths can be measured only through simple adjustment, the measurement precision is high, manual measurement can be replaced, the measurement error is reduced, the operation is simple and convenient, the labor cost is reduced, two end face run-out and circle run-out data can be detected at one time, and the measurement efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of measuring equipment, in particular to a shape contour measuring device. Background Art

[0002] Cylindrical products are common in precision mechanical structures, such as machine tool spindles and rollers of cylindrical roller bearings. The measurement of cylindrical profiles will determine the accuracy of mechanical processing and assembly.

[0003] The existing technology for measuring the profile of cylindrical rollers mostly relies on manual measurement. Existing manual measurement methods have many disadvantages: 1. Because cylindrical rollers generally require a high precision of 0.003-0.004mm for both circular runout and end face runout, manual micrometer measurement can lead to large measurement errors due to factors such as space limitations and the number of testers. 2. Existing methods require separate measurement of end face runout and circular runout, resulting in multiple measurement points and low measurement efficiency. 3. Manual measurement is costly.

[0004] Therefore, according to the current development trend, there is an urgent need to develop accurate and efficient cylindrical roller profile measurement equipment. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies and defects mentioned in the above background technology and provide a cylindrical roller profile measuring device with high measurement accuracy and high measurement efficiency.

[0006] In order to solve the above technical problems, the technical solutions proposed by the present invention are as follows:

[0007] A cylindrical roller profile measuring device includes a positioning mechanism for axially positioning the cylindrical roller and a driving mechanism for driving the cylindrical roller to rotate axially. A first end face runout detection sensor and a second end face runout detection sensor are respectively provided at each end of the cylindrical roller, and a circular runout detection sensor is provided radially around the cylindrical roller. The positioning mechanism is used to axially position the cylindrical roller, and then the driving mechanism drives the cylindrical roller to rotate axially. The first end face runout detection sensor and the second end face runout detection sensor respectively measure the end face runout data of the two end faces of the measured cylindrical roller. The circular runout detection sensor also measures the circular runout data of the measured cylindrical roller simultaneously.

[0008] In the measuring device, preferably, the positioning mechanism includes a V-shaped positioning block and a first positioning platform and a second positioning platform respectively provided at both ends of the V-shaped positioning block; the first positioning platform is provided with an end face positioning pin for positioning one end face of the cylindrical roller, and the first end face runout detection sensor is provided on the first positioning platform; the second positioning platform is provided with an axial positioning assembly for positioning the other end face of the cylindrical roller, and the second end face runout detection sensor is provided on the second positioning platform. The V-shaped positioning block is provided to facilitate the placement of cylindrical rollers of different diameters.

[0009] In the measuring device, preferably, the axial positioning assembly and the second end face runout detection sensor can both be movably arranged on the second positioning platform.

[0010] In the measuring device, preferably, the axial positioning assembly includes an end face positioning block and a first drive cylinder for driving the end face positioning block to move relative to the second positioning platform. The second end face runout detection sensor is disposed on the second positioning platform via a second drive cylinder for driving the second end face runout detection sensor to move relative to the second positioning platform. For cylindrical rollers of different lengths, the first drive cylinder is configured to extend and retract to drive the end face positioning block to achieve clamping of both ends of the cylindrical roller. The second end face runout detection sensor is adjusted to contact the measured end face by the extension and retraction of the second drive cylinder, thereby achieving end face runout detection of the measured end face.

[0011] In the measuring device, preferably, an opening is provided in the middle of the V-shaped positioning block, and the circular runout detection sensor is in radial contact with the cylindrical roller through the opening.

[0012] In the measuring device, preferably, the driving mechanism includes a driving belt for contacting the cylindrical roller and driving the cylindrical roller to rotate and a belt driving source for driving the driving belt to rotate, and the belt driving source is connected to the driving belt.

[0013] In the measuring device, the drive mechanism is preferably movably disposed adjacent to the positioning mechanism via a horizontal guide rail assembly and a vertical guide rail assembly. The horizontal guide rail assembly and the vertical guide rail assembly enable the drive mechanism to horizontally approach and move away from a cylindrical roller being measured on the positioning mechanism, and to vertically adjust up and down according to the diameter of the cylindrical roller being measured.

[0014] In the measuring device, preferably, the horizontal guide rail assembly includes a horizontal guide rail, a horizontal slider, and a horizontal slider driving source for driving the horizontal slider to slide on the horizontal guide rail.

[0015] In the measuring device, preferably, the vertical guide rail assembly includes a vertical guide rail, a vertical slider, and a vertical slider driving source for driving the vertical slider to slide on the vertical guide rail.

[0016] In the measuring device, the drive belt preferably includes a horizontal section arranged horizontally for contacting the cylindrical roller and driving the cylindrical roller to rotate. The horizontal section can press downward against the cylindrical roller being measured, increasing the contact pressure between the drive belt and the cylindrical roller, thereby increasing friction and driving the cylindrical roller to rotate.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] The utility model can measure cylindrical rollers of different diameters and lengths with simple adjustments, has high measurement accuracy, can replace manual measurement, reduces measurement errors, is easy to operate, reduces labor costs, and can detect the two end face runout and circular runout data at one time, thereby improving measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 Schematic diagram of the overall structure of the cylindrical roller profile measuring device;

[0021] Figure 2 It is a front view of a cylindrical roller profile measuring device;

[0022] Figure 3 It is a top view of the cylindrical roller profile measuring device;

[0023] Figure 4 This is a schematic diagram of the overall structure of the cylindrical roller profile measuring device without the cylindrical roller placed;

[0024] Figure 5 Schematic diagram of the cylindrical roller profile measuring device for measuring cylindrical rollers;

[0025] Figure 6 This is the detection radius diagram of the cylindrical roller profile measuring device.

[0026] Legend

[0027] 1. Cylindrical roller; 2. First end face runout detection sensor; 3. Second end face runout detection sensor; 4. Circular runout detection sensor; 5. First positioning table; 6. Second positioning table; 7. V-shaped positioning block; 8. End face positioning pin; 9. Axial positioning assembly; 10. Drive belt; 11. Belt drive source; 12. Horizontal guide rail; 13. Horizontal slider; 14. Vertical guide rail; 15. Vertical slider. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described in more comprehensive and detailed manner below in conjunction with the accompanying drawings and preferred embodiments of the specification, but the protection scope of the present invention is not limited to the following specific embodiments.

[0029] It should be noted that when an element is described as being "fixed, fixed, connected or communicated with" another element, it can be directly fixed, fixed, connected or communicated with the other element, or it can be indirectly fixed, fixed, connected or communicated with the other element through other intermediate connectors.

[0030] Unless otherwise defined, all technical terms used hereinafter have the same meanings as those generally understood by those skilled in the art. The technical terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of the present invention.

[0031] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0032] Example:

[0033] like Figures 1 to 5 As shown, the cylindrical roller profile measuring device of this embodiment includes a positioning mechanism for axially positioning the cylindrical roller 1 and a driving mechanism for driving the cylindrical roller 1 to rotate axially. A first end face runout detection sensor 2 and a second end face runout detection sensor 3 are respectively provided at both ends of the cylindrical roller 1, and a circular runout detection sensor 4 is provided in the radial direction of the cylindrical roller 1.

[0034] In this embodiment, the positioning mechanism includes a V-shaped positioning block 7 and a first positioning platform 5 and a second positioning platform 6 respectively arranged at both ends of the V-shaped positioning block 7; the first positioning platform 5 is provided with an end face positioning pin 8 for positioning one end face of the cylindrical roller 1, and the first end face runout detection sensor 2 is arranged on the first positioning platform 5; the second positioning platform 6 is provided with an axial positioning component 9 for positioning the other end face of the cylindrical roller 1, and the second end face runout detection sensor 3 is arranged on the second positioning platform 6.

[0035] In this embodiment, the axial positioning assembly 9 and the second end face runout detection sensor 3 can both be movably disposed on the second positioning platform 6 .

[0036] In this embodiment, the axial positioning assembly 9 includes an end face positioning block and a first driving cylinder for driving the end face positioning block to move relative to the second positioning platform 6. The second end face runout detection sensor 3 is arranged on the second positioning platform 6 through a second driving cylinder for driving the second end face runout detection sensor 3 to move relative to the second positioning platform 6.

[0037] In this embodiment, an opening is provided in the middle of the V-shaped positioning block 7, and the circular runout detection sensor 4 contacts the radial direction of the cylindrical roller 1 through the opening.

[0038] In this embodiment, the driving mechanism includes a driving belt 10 for contacting the cylindrical roller 1 and driving the cylindrical roller 1 to rotate, and a belt driving source 11 for driving the driving belt 10 to rotate. The belt driving source 11 is connected to the driving belt 10 .

[0039] In this embodiment, the driving mechanism is movably arranged next to the positioning mechanism through a horizontal guide rail assembly and a vertical guide rail assembly.

[0040] In this embodiment, the horizontal guide rail assembly includes a horizontal guide rail 12 , a horizontal slider 13 , and a horizontal slider driving source for driving the horizontal slider 13 to slide on the horizontal guide rail 12 .

[0041] In this embodiment, the vertical guide rail assembly includes a vertical guide rail 14 , a vertical slider 15 , and a vertical slider driving source for driving the vertical slider 15 to slide on the vertical guide rail 14 .

[0042] In this embodiment, specifically, the driving mechanism is fixed to the vertical slider 15, and the driving source of the vertical slider 15 is used to realize the up and down movement of the driving mechanism along the vertical guide rail 14. The vertical guide rail 14 is vertically arranged on the horizontal slider 13, so that the driving mechanism moves along the horizontal guide rail 12 through the driving source of the horizontal slider. The horizontal guide rail 12 is horizontally and vertically arranged on one side of the positioning mechanism, so that the driving mechanism can approach and move away from the positioning mechanism through the horizontal guide rail 12.

[0043] In this embodiment, the driving belt 10 includes a horizontal section arranged horizontally for contacting the cylindrical roller 1 and driving the cylindrical roller 1 to rotate.

[0044] In this embodiment, the specific operating steps are as follows: first, the cylindrical roller 1 to be measured is placed in the V-shaped positioning block 7, the first driving cylinder of the axial positioning assembly 9 is extended, so that the end face positioning block is against the end face of the cylindrical roller 1, and the cylindrical roller 1 is pushed, so that the other end face of the cylindrical roller 1 is close to the end face positioning pin 8, and the axial positioning is completed. The driving mechanism moves horizontally to the top of the V-shaped positioning block 7 through the horizontal slide assembly, and moves downward through the vertical slide assembly, so that the horizontal section of the driving belt 10 is pressed down onto the cylindrical roller 1, and then the second end face jumps The detection sensor 3 is extended through the second driving cylinder, contacts the end face to be detected, and finally drives the driving belt 10 to rotate through the belt driving source 11 to drive the cylindrical roller 1 to rotate. Three detection sensors, including the first end face runout detection sensor 2, the second end face runout detection sensor 3 and the circular runout detection sensor 4, respectively measure the left end face runout, right end face runout and circular runout of the cylindrical roller 1. After the detection is completed, the axial positioning assembly 9, the second end face runout detection sensor 3 and the driving mechanism return to the initial position, and the cylindrical roller 1 is taken out.

[0045] In this embodiment, the second end face runout detection sensor 3 is a pneumatic displacement sensor, and the standard cylindrical roller 1 used for detection and calculation is a high-precision standard rod with a constant length and radius.

[0046] In this embodiment, the length detection method of the cylindrical roller 1 to be tested is as follows: a standard rod is tested, and the reading of the pneumatic displacement sensor is reset to zero on the computer during the test. During operation, the computer obtains the difference between the cylindrical roller 1 to be tested and the standard rod through the reading of the pneumatic displacement sensor to obtain the length of the tested workpiece.

[0047] In this embodiment, the radius of the cylindrical roller 1 to be measured is calculated as follows:

[0048] ;

[0049] Among them, such as Figure 6 As shown, R is the radius of the standard rod, A is half of the opening angle of the V-type positioning block 7, B is the distance from the bottom of the standard rod to the intersection of the angles of the V-type positioning block 7, L1 and L2 are respectively the distances from the standard rod and the intersection of the tangent point of the cylindrical roller 1 to the V-type positioning block 7, r is the radius of the cylindrical roller 1 to be tested, and x is the relative compression of the circular runout detection sensor 4 (the reading relative to the standard rod sensor when detecting the cylindrical roller 1).

[0050] The radius is obtained from (1)(2)(3)(4): ;

[0051] Since A and R are known numbers and x is the reading of the circular runout detection sensor 4, the radius of the cylindrical roller 1 to be measured is obtained by processing the data with a computer.

[0052] In this embodiment, the cylindrical roller 1 can automatically start positioning detection when it is placed in the V-shaped positioning block 7, and since the driving mechanism is movably set, it is very convenient to load and unload the cylindrical roller 1 to be tested without obstruction. It can be combined with CNC machine tools, multi-joint robots, etc. to make the detection process fully automated.

Claims

1. A cylindrical roller profile measuring device, characterized in that: The invention comprises a positioning mechanism for axially positioning a cylindrical roller (1) and a driving mechanism for driving the cylindrical roller (1) to rotate in the axial direction. A first end face runout detection sensor (2) and a second end face runout detection sensor (3) are respectively provided at both ends of the cylindrical roller (1). A circular runout detection sensor (4) is provided in the radial direction of the cylindrical roller (1).

2. The cylindrical roller profile measuring device according to claim 1, characterized in that: The positioning mechanism comprises a V-shaped positioning block (7) and a first positioning platform (5) and a second positioning platform (6) respectively arranged at both ends of the V-shaped positioning block (7); the first positioning platform (5) is provided with an end surface positioning pin (8) for positioning one end surface of the cylindrical roller (1), and the first end surface runout detection sensor (2) is arranged on the first positioning platform (5); the second positioning platform (6) is provided with an axial positioning component (9) for positioning the other end surface of the cylindrical roller (1), and the second end surface runout detection sensor (3) is arranged on the second positioning platform (6).

3. The cylindrical roller profile measuring device according to claim 2, characterized in that: The axial positioning assembly (9) and the second end face runout detection sensor (3) are both movably arranged on the second positioning platform (6).

4. The cylindrical roller profile measuring device according to claim 3, characterized in that: The axial positioning assembly (9) includes an end face positioning block and a first driving cylinder for driving the end face positioning block to move relative to the second positioning platform (6); the second end face runout detection sensor (3) is arranged on the second positioning platform (6) via a second driving cylinder for driving the second end face runout detection sensor (3) to move relative to the second positioning platform (6).

5. The cylindrical roller profile measuring device according to claim 2, characterized in that: An opening is provided in the middle of the V-shaped positioning block (7), and the circular runout detection sensor (4) is in radial contact with the cylindrical roller (1) through the opening.

6. The cylindrical roller profile measuring device according to any one of claims 1 to 5, characterized in that: The driving mechanism comprises a driving belt (10) for contacting the cylindrical roller (1) and driving the cylindrical roller (1) to rotate, and a belt driving source (11) for driving the driving belt (10) to rotate, wherein the belt driving source (11) is connected to the driving belt (10).

7. The cylindrical roller profile measuring device according to claim 6, characterized in that: The driving mechanism is movably arranged beside the positioning mechanism through a horizontal guide rail assembly and a vertical guide rail assembly.

8. The cylindrical roller profile measuring device according to claim 7, characterized in that: The horizontal guide rail assembly comprises a horizontal guide rail (12), a horizontal slider (13), and a horizontal slider driving source for driving the horizontal slider (13) to slide on the horizontal guide rail (12).

9. The cylindrical roller profile measuring device according to claim 7, characterized in that: The vertical guide rail assembly comprises a vertical guide rail (14), a vertical slider (15), and a vertical slider driving source for driving the vertical slider (15) to slide on the vertical guide rail (14).

10. The cylindrical roller profile measuring device according to claim 6, characterized in that: The driving belt (10) comprises a horizontal section arranged horizontally and used for contacting the cylindrical roller (1) and driving the cylindrical roller (1) to rotate.

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