Multifunctional linear guide rail precision measuring device

Abstract

The utility model discloses a multifunctional linear guide rail precision measuring device, which belongs to the technical field of linear guide rail measurement and comprises a flat plate, a supporting and fixing mechanism used for supporting a linear guide rail and a transmission mechanism used for driving the linear guide rail to move on the supporting and fixing mechanism are arranged on the flat plate, and a measuring mechanism is arranged on the flat plate. The whole system is composed of the flat plate, the supporting and fixing mechanism, the transmission mechanism and the measuring mechanism, all the parts are in close fit, and full-process automatic operation from guide rail installation to data acquisition is achieved. Particularly, due to the design of the two-way moving module and the one-way moving module, conveying of the guide rail is more stable and accurate, and errors caused by human factors are reduced. In addition, through combined use of the Z-axis moving module and the Y-axis moving module, precise adjustment of the position of the sensor is ensured, and the measurement precision is further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to linear guide rail measurement technical field especially a kind of multifunctional linear guide rail precision measuring device. BACKGROUND

[0002] Ball linear guide pair as the rolling function component of high-precision linear transmission of machine tool, its manufacturing precision directly affects the position accuracy of machine tool as a whole, and the precision detection of manufactured ball linear guide pair is also the focus of each ball linear guide pair manufacturer, and the parallelism of linear guide is an important technical parameter in detection. The parallelism detection of linear guide is generally carried out on marble platform, the linear guide is fixed on marble platform, the dial gauge is fixed on the slider, the dial gauge pointer is hit on marble platform, the slider is moved to determine whether the parallelism of linear guide meets the standard by observing the jumping range of dial gauge.

[0003] The existing measurement method has the following shortcomings: the measurement method with high precision is single in guide type, the pointer swings within a certain range when measuring with dial gauge, and the reading value is not particularly accurate, and the precision error is large. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of multifunctional linear guide rail precision measuring device to solve the above problems existing in prior art.

[0005] Technical scheme: a kind of multifunctional linear guide rail precision measuring device, it includes: flat plate, the support fixed mechanism for supporting linear guide and the transmission mechanism for driving linear guide to move on the support fixed mechanism are arranged on the flat plate, and measuring mechanism is arranged on the flat plate.

[0006] Further, the measuring mechanism includes: Z-axis movement module, the Z-axis movement module is installed on flat plate by first connecting plate, upper Y-axis movement module is installed on the slider of Z-axis movement module by second connecting plate, and first sensor for detecting the upper surface of linear guide is arranged on the slider of upper Y-axis movement module.

[0007] Further, the upper Y-axis movement module is at least one.

[0008] Further, lower Y-axis movement module is installed on the flat plate, and second sensor is installed on the slider of lower Y-axis movement module by support for detecting the side surface of linear guide.

[0009] Further, the support includes: a column mounted on the slider of the lower Y-axis moving module, the column slidingly sleeved with a first adjusting plate, the slider of the upper Y-axis moving module fixedly connected with a second adjusting plate, the first adjusting plate or the second adjusting plate provided with a sliding groove, and the second adjusting plate or the first adjusting plate provided with a limiting block placed in the sliding groove and sliding therein.

[0010] Further, the transmission mechanism includes: a bidirectional moving module, one moving end of the bidirectional moving module mounted with a driving motor and a first driving roller, the other moving end of the bidirectional moving module mounted with a second driving roller, the driving motor and the first driving roller connected through a chain transmission, and the first driving roller and the second driving roller connected through a feeding transmission assembly.

[0011] Further, the transmission mechanism includes: a unidirectional moving module, the moving end of the unidirectional moving module mounted with a second driving roller, the driving motor and the first driving roller mounted on the flat plate, the driving motor and the first driving roller connected through a chain transmission, and the first driving roller and the second driving roller connected through a feeding transmission assembly.

[0012] Further, the feeding transmission assembly includes: two centering hinged plates, the two centering hinged plates connected in parallel through two rotating shafts, one end of a first hinged plate hinged to one of the rotating shafts, the other end of the first hinged plate hinged to the rotating shaft of the first driving roller, one end of a second hinged plate hinged to the other of the rotating shafts, the other end of the second hinged plate hinged to the rotating shaft of the second driving roller, gears mounted on the two rotating shafts, the two gears meshing and transmitting, one of the rotating shafts connected to the first driving roller through a chain, and the other of the rotating shafts connected to the second driving roller through a chain.

[0013] Further, the support fixing mechanism includes: a guide roller platform and a centering flat tongs, the flat plate provided with the centering flat tongs, and at least one of the guide roller platforms provided on the two sides of the centering flat tongs.

[0014] Further, the guide roller platform includes: two fixed plates connected through a fixed plate connecting rod, a plurality of roller wheels linearly and arrayedly rotatably mounted on the fixed plates, the fixed plates mounted on the flat plate through support rods, and a photoelectric switch provided on the fixed plate.

[0015] Beneficial effects:

[0016] 1. Improve the measurement accuracy

[0017] In traditional measurement methods, especially when using a dial gauge for measurement, the pointer swings within a certain range, resulting in inaccurate reading of the value and causing large precision errors. The present application effectively solves this problem by integrating advanced sensor technology and automated adjustment mechanism. The first sensor and the second sensor are used to detect the upper surface and the side surface of the linear guide rail respectively, ensuring omnidirectional data acquisition. This multi-point detection method not only improves the accuracy of data, but also more comprehensively reflects the overall quality condition of the guide rail.

[0018] 2. Multi-model guide rail compatibility

[0019] Existing high-precision measurement equipment can usually only measure specific models of guide rails, limiting its application range. The support fixing mechanism and transmission mechanism designed in the present application can adapt to guide rails of different specifications. Through flexible adjustment of the center flat tongs and the guide roller platform, various models of guide rails can be quickly replaced and fixed, greatly improving the versatility and practicality of the equipment.

[0020] 3. Improved automation

[0021] The entire system is composed of a flat plate, a support fixing mechanism, a transmission mechanism and a measurement mechanism, which work together to realize full-process automation from guide rail installation to data acquisition. In particular, the design of the bidirectional movement module and the unidirectional movement module makes the transmission of the guide rail more stable and accurate, reducing errors caused by human factors. In addition, the combination of the Z-axis movement module and the Y-axis movement module ensures accurate adjustment of the sensor position, further improving the measurement accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic diagram of the present application;

[0023] Figure 2 is a structural schematic diagram of the support of the present application;

[0024] Figure 3 is a schematic diagram of the installation position of the bidirectional movement module of the present application;

[0025] Figure 4 is a schematic diagram of the installation position of the unidirectional movement module of the present application;

[0026] Figure 5 is a structural schematic diagram of the guide roller platform of the present application.

[0027] The figure marks are: measuring mechanism 1, Z-axis moving module 11, second connecting plate 12, upper Y-axis moving module 13, first sensor 14, lower Y-axis moving module 15, first connecting plate 16, second sensor 18, support 19, stand 191, first adjusting plate 192, second adjusting plate 193, sliding groove 194, limiting block 195, transmission mechanism 2, bidirectional moving module 21, driving motor 22, first driving roller 23, second driving roller 24, feeding transmission assembly 25, centering hinged plate 251, rotating shaft 252, first hinged plate 253, second hinged plate 254, gear 255, unidirectional moving module 26, support fixing mechanism 3, guide roller platform 31, photoelectric switch 311, roller 312, fixed plate connecting rod 313, support rod 314, fixed plate 315, centering flat tongs 32. DETAILED DESCRIPTION

[0028] In the following description, numerous specific details are given to provide a thorough understanding of the application. However, it will be apparent that the application can be practiced without one or more of these specific details. In other instances, well-known techniques have not been described in order to avoid obscuring the application.

[0029] Embodiment: as Figures 1-5The utility model discloses a multifunctional linear guide rail precision measuring device, including: the flat plate 4 is provided with the support fixed establishment 3 for supporting linear guide rail and the transmission mechanism 2 for driving linear guide rail in support fixed establishment 3 moves on the flat plate 4, and the flat plate 4 is provided with measuring mechanism 1. Measuring mechanism 1 includes: Z axle movement module 11, Z axle movement module 11 is installed on the flat plate 4 through first connecting plate 16, and upper Y axle movement module 13 is installed on the slider of Z axle movement module 11 through second connecting plate 12, and the slider of upper Y axle movement module 13 is provided with first sensor 14 for detecting linear guide rail upper surface. Upper Y axle movement module 13 is at least one. The lower Y axle movement module 15 is installed on the flat plate 4, and second sensor 18 is installed on the slider of lower Y axle movement module 15 through support 19 and is used for detecting linear guide rail side. The support 19 includes: the column 191 is installed on the slider of lower Y axle movement module 15, the first adjusting plate 192 is sleeved with the sliding of the column 191, the second adjusting plate 193 is fixedly connected on the slider of upper Y axle movement module 13, the first adjusting plate 192 or second adjusting plate 193 is provided with the sliding groove 194, the second adjusting plate 193 or first adjusting plate 192 is provided with the limit block 195, and the limit block 195 is placed in the sliding groove 194 and slides in it. Transmission mechanism 2 includes: two-way movement module 21, one movable end of two-way movement module 21 is provided with drive motor 22 and first drive roll 23, and the other movable end of two-way movement module 21 is provided with second drive roll 24, drive motor 22 and first drive roll 23 are driven by chain, and first drive roll 23 is connected with second drive roll 24 through feed transmission assembly 25. Transmission mechanism 2 includes: one-way movement module 26, the movable end of one-way movement module 21 is provided with second drive roll 24, drive motor 22 and first drive roll 23 are installed on the flat plate 4, drive motor 22 and first drive roll 23 are driven by chain, and first drive roll 23 is connected with second drive roll 24 through feed transmission assembly 25. Feed transmission assembly 25 includes: the central hinged plate 251, two central hinged plates 251 are connected in parallel through two rotating shafts 252, one end of first hinged plate 253 is hinged with one of rotating shafts 252, the other end of first hinged plate 253 is hinged with the rotating shaft of first drive roll 23, one end of second hinged plate 254 is hinged with the other rotating shaft 252, the other end of second hinged plate 254 is hinged with the rotating shaft of second drive roll 24, gear 255 is installed on two rotating shafts 252, and two gears 255 are engaged transmission, one of rotating shafts 252 is driven by chain with first drive roll 23, and the other rotating shaft 252 is driven by chain with second drive roll 24.The support fixing mechanism 3 comprises a guide roller platform 31 and a centering flat tongs 32, the flat plate 4 is provided with the centering flat tongs 32, and at least one guide roller platform 31 is arranged on both sides of the centering flat tongs 32. The guide roller platform 31 comprises a fixed plate 315, two fixed plates 315 are connected through a fixed plate connecting rod 313, a plurality of roller wheels 312 are arranged in a straight line array on the fixed plate 315 and are rotatably installed, the fixed plate 315 is installed on the flat plate 4 through a supporting rod 314, and a photoelectric switch 311 is arranged on the fixed plate 315.

[0030] The main function of the centering pliers 32 of the support and fixation mechanism 3 is to ensure the stability and precise positioning of the guide rail during measurement. The design of the clamps allows for secure fixation of the guide rail in a predetermined position, avoiding errors caused by inaccurate positioning. The centering design ensures that the centerline of the guide rail coincides with the measurement reference line, improving the accuracy of the measurement. Additionally, this design simplifies the operation process and reduces the influence of human factors. The roller platform 31 consists of two fixed plates 315, multiple rotatably installed rollers 312, and a photoelectric switch 311. These components work together to ensure the smoothness and accuracy of the guide rail during transmission. The design of the rollers reduces the friction of the guide rail during movement, ensuring smooth operation along the predetermined path. The photoelectric switch provides real-time monitoring, allowing the system to adjust the transmission speed or stop transmission in time to prevent accidents. The bidirectional movement module 21 of the transmission mechanism 2 can drive the guide rail to move in two directions, suitable for scenarios that require bidirectional transmission. One moving end is equipped with a drive motor 22 and a first drive roller 23, and the other moving end is equipped with a second drive roller 24. Through chain transmission, the drive motor can drive both drive rollers to work simultaneously, achieving stable and efficient transmission. This design not only improves work efficiency but also enhances system stability. The unidirectional movement module 26 is simpler in structure compared to the bidirectional module and is mainly used for occasions that require only unidirectional transmission. It is also equipped with a second drive roller 24 and is connected to a drive motor 22 through a chain. The design of the unidirectional module simplifies the device structure, reduces maintenance costs, and exhibits higher flexibility and reliability in certain specific application scenarios. The feed transmission assembly 25 achieves synchronous movement between the two drive rollers through the precise cooperation of the centering hinge plate 251, the shaft 252, the first hinge plate 253, and the second hinge plate 254. The gear 255 further enhances the stability and reliability of the system. This complex mechanical structure ensures precise synchronization between the two drive rollers, reducing jitter and errors during transmission and thus improving the overall measurement accuracy. The Z-axis movement module 11 of the measurement mechanism 1 is installed on the flat plate 4 through the first connecting plate 16 and can move up and down in the vertical direction. Its main task is to adjust the height position of the sensor to adapt to guide rails of different thicknesses. The height-adjustable design allows the measurement mechanism to flexibly handle guide rails of various specifications, improving the universality and adaptability of the device. In addition, this design simplifies the operation process and reduces the need for manual intervention. The Y-axis movement modules 13 and 15, the upper Y-axis movement module 13 and the lower Y-axis movement module 15, are responsible for forward and backward movement in the horizontal direction, respectively.The upper Y-axis movement module 13 is installed on the Z-axis movement module 11 slider through the second connecting plate 12, equipped with the first sensor 14 for detecting the guide rail upper surface; the lower Y-axis movement module 15 is installed on the flat plate 4, and the second sensor 18 is fixed on its slider through the support 19 for detecting the guide rail side. This double-layer design not only improves the comprehensiveness of data collection, but also enhances the accuracy and reliability of measurement. The multi-point detection method can more comprehensively reflect the overall quality condition of the guide rail, providing strong support for subsequent quality control. The support 19 is composed of a column 191, a first adjusting plate 192, a second adjusting plate 193, a sliding groove 194 and a limiting block 195, which together form a flexible and adjustable support system. Through the sliding adjusting plate and limiting block, the angle and distance of the sensor can be fine-tuned according to actual needs. This flexible design makes the position adjustment of the sensor more convenient and fast, and can accurately adjust according to different measurement needs, thereby improving the flexibility and accuracy of measurement. The first sensor 14 and the second sensor 18, the first sensor 14 is installed on the slider of the upper Y-axis movement module 13, used for detecting the upper surface of the guide rail. Its high sensitivity and high resolution ensure the accuracy of data collection. This design enables the sensor to capture subtle changes in the guide rail surface in real time, providing a reliable foundation for subsequent data processing and analysis. In addition, the high precision characteristics of the sensor also significantly improve the credibility of the measurement results. The second sensor 18 is installed on the slider of the lower Y-axis movement module 15 through the support 19, used for detecting the side of the guide rail. Its design is similar to the first sensor, but it is aimed at the side features of the guide rail. This dual-sensor configuration not only improves the comprehensiveness of data collection, but also enhances the accuracy and reliability of measurement. The multi-point detection method can more comprehensively reflect the overall quality condition of the guide rail, providing strong support for subsequent quality control.

[0031] Working process

[0032] Preparation stage

[0033] First, prepare the guide rail and place it on the slider. Then place the slider above the centering flat pliers 32, adjust the slider so that its right surface is as parallel to the flat pliers as possible. After confirming that it is correct, tighten the flat pliers to fix the slider. Next, replace the original guide rail with the guide rail to be measured by passing it through the fixed slider. During this process, the system will automatically adjust the position of the laser sensor to ensure that the light point is within the target plane. If the light point deviates from the target area, manual fine-tuning is required.

[0034] Start measurement

[0035] After the preparation work is completed, the guide rail conveying mechanism is started. At this time, the bidirectional moving module 21 or the unidirectional moving module 26 starts to work, and drives the guide rail to move smoothly along the predetermined path. In the moving process, the first sensor 14 and the second sensor 18 measure a plurality of point positions on the guide rail, and further measure the flatness of the upper surface and the straightness of the side surface of the guide rail, so as to obtain the precision data of each part of the guide rail. These data are transmitted to the computer system in real time, and a detailed detection report is generated after being processed by a professional algorithm.

[0036] End of measurement

[0037] When the guide rail no longer blocks the photoelectric switch 311, the conveying mechanism automatically stops running, indicating that the measurement has been completed. At this time, the final detection result can be viewed through the computer to understand whether the straightness and flatness of the guide rail and other indicators meet the standard requirements. If it is necessary to continue to test guide rails of other specifications, the above steps can be repeated by loosening the center flat tongs 32, removing the old guide rail and installing a new guide rail to perform a new round of measurement work.

[0038] The preferred embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the specific details in the above embodiments, and various equivalent transformations can be made to the technical solutions of the utility model within the technical concept of the utility model, and these equivalent transformations all belong to the protection scope of the utility model.

Claims

1. A multifunctional linear guide rail precision measuring device, characterized in that, The utility model relates to a kind of linear guide rail measuring device, including: Flat plate (4), the support fixing mechanism (3) for supporting linear guide rail is provided on the flat plate (4), and transmission mechanism (2) for driving linear guide rail moves in the support fixing mechanism (3), measuring mechanism (1) is provided on the flat plate (4).

2. The multi-functional linear guide rail precision measuring device according to claim 1, characterized in that, The measuring mechanism (1) includes: Z-axis movement module (11), the Z-axis movement module (11) is installed on flat plate (4) by first connecting plate (16), and upper Y-axis movement module (13) is installed on the slider of the Z-axis movement module (11) by second connecting plate (12), and first sensor (14) for detecting the upper surface of linear guide rail is provided on the slider of the upper Y-axis movement module (13).

3. The multi-functional linear guide rail precision measuring device according to claim 2, characterized in that, The upper Y-axis movement module (13) is at least one.

4. The multi-functional linear guide rail precision measuring device according to claim 2, characterized in that, Lower Y-axis movement module (15) is installed on the flat plate (4), and second sensor (18) is installed on the slider of the lower Y-axis movement module (15) by support (19), for detecting the side surface of linear guide rail.

5. The multi-functional linear guide rail precision measuring device according to claim 4, characterized in that, The support (19) includes: column (191), the column (191) is installed on the slider of the lower Y-axis movement module (15), the first adjusting plate (192) is slidably sleeved on the column (191), the second adjusting plate (193) is fixedly connected on the slider of the upper Y-axis movement module (13), the first adjusting plate (192) or second adjusting plate (193) is provided with sliding groove (194), the second adjusting plate (193) or first adjusting plate (192) is provided with limit block (195), the limit block (195) is placed in the sliding groove (194) and slides in it.

6. The multi-functional linear guide rail precision measuring device according to claim 1, characterized in that, The transmission mechanism (2) includes: bidirectional movement module (21), one movement end of the bidirectional movement module (21) is provided with driving motor (22) and first drive roller (23), the other movement end of the bidirectional movement module (21) is provided with second drive roller (24), the driving motor (22) and first drive roller (23) are driven by chain, and the first drive roller (23) and second drive roller (24) are connected by feeding transmission assembly (25).

7. The multi-functional linear guide rail precision measuring device according to claim 1, characterized in that, The transmission mechanism (2) includes: unidirectional movement module (26), the movement end of the unidirectional movement module (21) is provided with second drive roller (24), the driving motor (22) and the first drive roller (23) are installed on the flat plate (4), the driving motor (22) and first drive roller (23) are driven by chain, and the first drive roller (23) and second drive roller (24) are connected by feeding transmission assembly (25).

8. The precision measuring device for multi-functional linear guide rails according to claim 6 or 7, characterized in that, The feeding transmission assembly (25) comprises two central hinge plates (251) connected in parallel through two rotating shafts (252), a first hinge plate (253) hinged at one end to one of the rotating shafts (252) and at the other end to the rotating shaft of the first driving roller (23), a second hinge plate (254) hinged at one end to the other rotating shaft (252) and at the other end to the rotating shaft of the second driving roller (24), gears (255) installed on the two rotating shafts (252), the two gears (255) in mesh transmission, one of the rotating shafts (252) in transmission with the first driving roller (23) through a chain, and the other rotating shaft (252) in transmission with the second driving roller (24) through a chain.

9. The multi-functional linear guide rail precision measuring device according to claim 1, characterized in that, The support fixing mechanism (3) comprises a guide roller platform (31) and a centering flat tongs (32), the flat plate (4) is provided with the centering flat tongs (32), and at least one guide roller platform (31) is arranged on the two sides of the centering flat tongs (32).

10. The multi-functional linear guide rail precision measuring device according to claim 9, characterized in that, The guide roller platform (31) comprises two fixed plates (315) connected through a fixed plate connecting rod (313), a plurality of roller wheels (312) installed in a linear array on the fixed plate (315) and rotatably, and a support rod (314) used to install the fixed plate (315) on the flat plate (4), and a photoelectric switch (311) arranged on the fixed plate (315).

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