Linear guide rail flatness detection device

Abstract

The embodiment of the utility model provides a linear guide rail flatness detection device, and relates to the technical field of linear guide rail detection, the linear guide rail flatness detection device comprises a base frame, the two sides of the top of the base frame are fixedly provided with clamping mechanisms, the middle of the base frame is fixedly provided with a mounting frame, and the top and bottom of the mounting frame are fixedly provided with detection mechanisms; and a guide rail body is clamped on the inner side of the clamping mechanism. The guide rail bodies are arranged on the inner sides of the clamping plates, the second electric push rods are started to enable the clamping plates to be close to each other, and the L-shaped clamping plates can stably clamp the guide rail bodies of different sizes. During detection, the first electric push rod is started to move the pressure sensor inwards, and the detection roller is attached to the outer surface of the guide rail body. The driving motor is started to drive the detection roller to rotate and drive the guide rail body to transversely move. If the surface of the guide rail body is concave and convex, the detection roller extrudes or loosens the buffer spring, and the pressure sensor detects the pressure change so as to judge the flatness. The driving motor can assist in comprehensive detection of the guide rail body.

Description

Technical Field

[0001] This application relates to the technical field of linear guide detection, and particularly to a linear guide flatness detection device. Background Art

[0002] As a key component widely used in mechanical structures, the guide rail is usually made of metal materials with specific shapes and structures. Its core function is to provide precise guidance and firm support for moving components, effectively ensuring the accuracy and stability of movement. In many mechanical devices, such as machine tools, automated production lines, and elevators, the guide rail plays a crucial role. During the design of the guide rail, many factors such as the friction coefficient, precision requirements, and load-bearing capacity need to be fully considered. The guide rail can be either a linear guide rail, leading the component to move smoothly along a straight line direction; or a curved guide rail to meet specific curved movement requirements. The surface of the guide rail generally undergoes precision machining to ensure low friction, high wear resistance, and good accuracy retention. By cooperating with components such as sliders and rollers, the guide rail can achieve efficient and stable motion control, providing a reliable guarantee for the normal operation of mechanical devices.

[0003] However, the linear flatness of the linear guide rail has a very important impact on both the mechanical manufacturing and installation accuracy and the extension of the machine's working life. Therefore, after the production of the linear guide rail, its flatness detection is particularly crucial. Most of the existing flatness detections of linear guide rails are manually carried out using straightedges or other detection tools. This manual detection method is not only relatively troublesome, with low detection efficiency, but also the detected data is prone to errors. At the same time, when the existing linear guide rail is subjected to flatness detection, it does not have good stability. The linear guide rail is easily affected by external vibrations, thereby affecting the detection accuracy. Moreover, the existing detection methods cannot detect the top and bottom of the guide rail simultaneously, and the overall detection efficiency and accuracy are relatively poor. In view of this, there is an urgent need to improve the existing flatness detection method of linear guide rails. Summary of the Utility Model

[0004] The embodiments of this application provide a linear guide rail flatness detection device to solve the problem that the current linear guide rail flatness detection device cannot detect the top and bottom of the guide rail simultaneously and the overall detection efficiency is relatively poor.

[0005] The embodiments of this application provide a linear guide rail flatness detection device, including: a base frame, clamping mechanisms are fixedly installed on both sides of the top of the base frame, an installation frame is fixedly installed in the middle of the base frame, detection mechanisms are fixedly installed on the top and bottom of the installation frame, a guide rail body is clamped inside the clamping mechanisms, and the guide rail body is arranged between the inner sides of the detection mechanisms;

[0006] The detection mechanism includes a fixed disk, which is fixedly installed in the middle of the top and the middle of the bottom of the installation frame. A first electric push rod is fixedly installed on the outer side of the fixed disk, and the end of the first electric push rod penetrates through the fixed disk and is fixedly installed with a detection component. The inner sides of the two detection components are respectively in fit connection with the top and the bottom of the guide rail body.

[0007] In a feasible implementation manner, the clamping mechanism includes a concave seat, which is fixedly installed on both sides of the top of the base frame. Second electric push rods are fixedly installed at both ends of the concave seat, and the output ends of the second electric push rods penetrate through the concave seat and are fixedly connected with a guiding component.

[0008] In a feasible implementation manner, the guiding component includes a clamping plate, which is fixedly connected to the inner output end of the second electric push rod. The top of the clamping plate is fixedly connected with top plates at equal intervals, and guide rollers are rotatably connected between the inner sides of each top plate and the clamping plate.

[0009] In a feasible implementation manner, balls are rotatably connected at equal intervals at the inner end of the top of the clamping plate, and the clamping plate is integrally arranged in an L shape.

[0010] In a feasible implementation manner, the detection component includes a pressure sensor, which is fixedly connected to the inner output end of the first electric push rod. The pressure sensor is fixedly installed at the inner output end of the first electric push rod. A buffer is fixedly connected to the inner side of the pressure sensor, and a guiding piece is fixedly connected to the inner side of the buffer.

[0011] In a feasible implementation manner, the buffer includes a bottom plate, which is fixedly connected to the inner end of the pressure sensor. Buffer springs are fixedly connected to both ends of the inner side of the bottom plate, and the inner sides of the buffer springs are fixedly connected with the buffer. Support rods are fixedly connected to both ends of the outer side of the buffer, and the ends of the support rods penetrate through the bottom plate.

[0012] In a feasible implementation manner, the guiding piece includes an inner concave frame, which is fixedly connected to the inner end of the buffer spring. Support rods are fixedly connected to both ends of the outer side of the inner concave frame. The buffer spring is sleeved on the outer side of the support rod. Detection rollers are rotatably connected to both ends of the inner side of the inner concave frame, and the inner sides of the detection rollers are in fit connection with the outer side of the guide rail body. A driving motor is fixedly connected to one end of the inner concave frame, and the output end of the driving motor penetrates through the inner concave frame and is fixedly connected with one end of the detection roller.

[0013] An embodiment of the present application provides a device for detecting the flatness of a linear guide rail. The guide rail body is placed inside the clamping plate. Starting the second electric push rod can make the L-shaped clamping plates on both sides of the top of the base frame move closer to each other, stably clamping the guide rail bodies of different sizes, facilitating flexible detection. During detection, starting the first electric push rod drives the pressure sensor to move inwards, making the detection roller of the guiding member fit the outer surface of the guide rail body. Starting the driving motor drives the detection roller to rotate, driving the guide rail body to move horizontally. If the surface of the guide rail body is uneven, when the detection roller moves to the uneven part, it will squeeze or loosen the buffer spring, resulting in a change in the pressure detected by the pressure sensor. Thus, the flatness of the guide rail body can be visually judged. At the same time, the driving motor assists the guide rail body to reciprocate, realizing comprehensive detection. The whole uses a clamping mechanism to assist in limiting, which can achieve automatic, comprehensive and stable detection. At the same time, both its bottom and top can be detected, which can improve the overall detection accuracy. Description of the Drawings

[0014] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present application and do not constitute an improper limitation of the present utility model.

[0015] In the drawings:

[0016] Figure 1 is the overall structural schematic diagram provided by an embodiment of the present application;

[0017] Figure 2 is the top view structural schematic diagram provided by an embodiment of the present application;

[0018] Figure 3 is the overall structural schematic diagram of the detection mechanism provided by an embodiment of the present application;

[0019] Figure 4 is the bottom view structural schematic diagram of the detection mechanism provided by an embodiment of the present application.

[0020] Description of the Reference Numerals:

[0021] 100 - base frame; 200 - clamping mechanism; 300 - mounting frame; 400 - guide rail body; 500 - detection mechanism;

[0022] 210 - concave seat; 220 - second electric push rod; 230 - guiding assembly;

[0023] 231 - clamping plate; 232 - top plate; 233 - guide roller; 234 - ball;

[0024] 510 - fixed disk; 520 - first electric push rod; 530 - detection assembly;

[0025] 531 - pressure sensor; 532 - buffer member; 533 - guiding member;

[0026] 5321-base plate; 5322-buffer spring; 5323-support rod;

[0027] 5331 - inner recessed frame; 5332 - detection roller; 5333 - driving motor. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0029] Example

[0030] refer to Figures 1 to 4 A linear guide flatness detection device of this embodiment includes: a base frame 100, a clamping mechanism 200 is fixedly installed on both sides of the top of the base frame 100, a mounting frame 300 is fixedly installed in the middle of the base frame 100, and a detection mechanism 500 is fixedly installed on the top and bottom of the mounting frame 300, and the inner side of the clamping mechanism 200 clamps a guide rail body 400, and the guide rail body 400 is arranged between the inner sides of the detection mechanism 500;

[0031] The detection mechanism 500 includes a fixed plate 510, which is fixedly installed in the middle of the top and the middle of the bottom of the installation frame 300. A first electric push rod 520 is fixedly installed on the outer side of the fixed plate 510, and a detection component 530 is fixedly installed at the end of the first electric push rod 520 passing through the fixed plate 510. The inner sides of the two detection components 530 are respectively fitted and connected to the top and bottom of the guide rail body 400. The clamping mechanisms 200 on both sides of the top of the base frame 100 can stably clamp guide rail bodies 400 of different sizes to ensure that the position of the guide rail is stable during the detection process and is not affected by external shaking, thereby improving the detection accuracy. The detection mechanism 500 on the mounting frame 300 is reasonably designed, and the fixed plate 510 provides a stable installation foundation for the first electric push rod 520 and the detection component 530. The first electric push rod 520 can accurately control the position of the detection component 530 so that it is tightly fitted and connected to the top and bottom of the guide rail body 400, and can detect the top and bottom of the guide rail at the same time, thereby improving the detection efficiency. The overall device has a stable structure and is easy to operate, providing an efficient and accurate solution for linear guide flatness detection.

[0032] The clamping mechanism 200 includes a concave seat 210, which is fixedly installed on both sides of the top of the base frame 100. Second electric push rods 220 are fixedly installed at both ends of the concave seat 210. The output ends of the second electric push rods 220 penetrate through the concave seat 210 and are fixedly connected to a guiding assembly 230. The guiding assembly 230 includes a clamping plate 231, which is fixedly connected to the inner output ends of the second electric push rods 220. At the top of the clamping plate 231, top plates 232 are fixedly connected at equal intervals. Guide rollers 233 are rotatably connected between each top plate 232 and the inner side of the clamping plate 231. Ball bearings 234 are rotatably connected at equal intervals at the inner end of the top of the clamping plate 231. The clamping plate 231 is integrally arranged in an L shape. The concave seat 210 provides a stable installation position for the second electric push rods 220. The second electric push rods 220 can precisely control the movement of the guiding assembly 230, thereby driving the clamping plates 231 to approach or move away from each other. The clamping plate 231 is integrally arranged in an L shape, which can better fit the guide rail body 400 for stable clamping. The guide rollers 233 between the top plates 232 and the inner side of the clamping plate 231 and the ball bearings 234 at the inner end of the top of the clamping plate 231, when clamping the guide rail body 400, on the one hand, can reduce the friction between the guide rail body 400 and the clamping plate 231, making the placement and adjustment of the guide rail body 400 smoother. On the other hand, during the detection process, even if the guide rail body 400 moves slightly, the guide rollers 233 and the ball bearings 234 can also play a certain guiding role to ensure that the guide rail body 400 is always in the correct detection position, improving the accuracy and stability of the detection.

[0033] The detection component 530 includes a pressure sensor 531. The pressure sensor 531 is fixedly connected to the inner output end of the first electric push rod 520 and is fixedly installed at the inner output end of the first electric push rod 520. A buffer member 532 is fixedly connected to the inner side of the pressure sensor 531, and a guiding member 533 is fixedly connected to the inner side of the buffer member 532. The buffer member 532 includes a bottom plate 5321. The bottom plate 5321 is fixedly connected to the inner end of the pressure sensor 531. Buffer springs 5322 are fixedly connected to both ends of the inner side of the bottom plate 5321. The inner sides of the buffer springs 5322 are fixedly connected to the buffer member 532. Support rods 5323 are fixedly connected to both ends of the outer side of the buffer member 532, and the ends of the support rods 5323 penetrate through the bottom plate 5321. The guiding member 533 includes a concave frame 5331. The concave frame 5331 is fixedly connected to the inner end of the buffer spring 5322. The support rods 5323 are fixedly connected to both ends of the outer side of the concave frame 5331. The buffer spring 5322 is sleeved on the outer side of the support rod 5323. Detection rollers 5332 are rotatably connected to both ends of the inner side of the concave frame 5331. The inner sides of the detection rollers 5332 are in fitting connection with the outer side of the guide rail body 400. A driving motor 5333 is fixedly connected to one end of the concave frame 5331. The output end of the driving motor 5333 penetrates through the concave frame 5331 and is fixedly connected to one end of the detection roller 5332. The pressure sensor 531 can detect the pressure change received by the buffer member 532 in real time, providing accurate data for judging the flatness of the guide rail body 400. The bottom plate 5321 and the buffer springs 5322 in the buffer member 532 cooperate. When the detection roller 5332 encounters unevenness on the surface of the guide rail body 400, the buffer springs 5322 can play a buffering role, making the detection of the pressure sensor 531 more sensitive and accurate. The setting of the support rods 5323 ensures the stability of the buffer member 532, preventing the buffer springs 5322 from shifting during compression and extension. The concave frame 5331 of the guiding member 533 provides a stable installation basis for the detection rollers 5332. The detection rollers 5332 are in fitting connection with the outer side of the guide rail body 400. By driving the detection rollers 5332 to rotate through the driving motor 5333, it can not only drive the guide rail body 400 to displace laterally for comprehensive detection, but also squeeze or relax the buffer springs 5322 according to the flatness change of the guide rail surface during the detection process, so that the pressure sensor 531 can accurately reflect the flatness of the guide rail. The overall design improves the detection accuracy and efficiency.

[0034] The working principle and advantages are as follows: By setting the clamping mechanism 200, the device shows excellent performance during actual use. During the use process, the guide rail body 400 to be detected can be placed between the inner sides of the clamping plates 231. At this time, start the second electric push rod 220 to run. After the second electric push rod 220 runs, it can push the clamping plates 231 on both sides of the top of the base frame 100 to approach and move towards each other. Since the clamping plates 231 are L-shaped, as the clamping plates 231 displace relative to each other, the guide rail body 400 can be stably clamped and positioned. In this way, it is convenient and flexible to detect guide rail bodies 400 of different sizes. And during the detection process, the first electric push rod 520 can be started to drive the pressure sensor 531 to move inward. When the pressure sensor 531 moves inward, the detection roller 5332 of the guiding member 533 can be urged to fit onto the outer surface of the guide rail body 400 to achieve a tight connection. At this time, start the driving motor 5333 to run. The driving motor 5333 can drive the detection roller 5332 to rotate. By driving the rotation of the detection roller 5332, the guide rail body 400 that is in contact between the inner sides of the detection roller 5332 can be driven to displace horizontally. During this process, if the surface of the guide rail body 400 is uneven or in a concave-convex state, when the detection roller 5332 moves to the concave-convex area, it will inevitably cause the detection roller 5332 to squeeze the buffer spring 5322. If it is in a concave area, the buffer spring 5322 will reset due to the loss of the extrusion of the guide rail body 400, and at this time, the pressure detected by the pressure sensor 531 decreases; if the guide rail surface is convex, it will cause the detection roller 5332 to press against the buffer spring 5322, and the buffer spring 5322 will contract. At this time, it will press against the pressure sensor 531 in the reverse direction, causing the pressure detected by the pressure sensor 531 to increase. By constantly detecting the pressure of the detection roller 5332 by the pressure sensor 531, the flatness of the guide rail body 400 can be intuitively judged through the floating change of the pressure detected by the detection roller 5332. And during the detection process, the driving motor 5333 drives the detection roller 5332 to rotate, which can assist in driving the guide rail body 400 to reciprocate, enabling the guide rail body 400 to be comprehensively detected. In addition, during its application process, a synchronous pulley and a synchronous belt can be set at the other end of the concave frame 5331, and the synchronous pulley is installed at the other end of the detection roller 5332 and is driven by the synchronous belt. At this time, starting one driving motor 5333 can synchronously drive both detection rollers 5332 to rotate, which can make the movement of the guide rail more stable, and the overall stability and accuracy of the device during use and detection can be improved.

[0035] It is easy to understand that those skilled in the art can combine, split, recombine, etc. the embodiments of the present application based on several embodiments provided by the present application to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0036] In the above specific embodiments, the objectives, technical solutions and beneficial effects of the embodiments of the present application have been further described in detail. It should be understood that the above are only specific embodiments of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

1. A flatness detection device for linear guide rails, characterized in that, Including: a base frame (100), clamping mechanisms (200) are fixedly installed on both sides of the top of the base frame (100), an installation frame (300) is fixedly installed in the middle of the base frame (100), detection mechanisms (500) are fixedly installed on the top and bottom of the installation frame (300), a guide rail body (400) is clamped inside the clamping mechanisms (200), and the guide rail body (400) is arranged between the inner sides of the detection mechanisms (500); The detection mechanism (500) includes a fixed disk (510), the fixed disk (510) is fixedly installed in the middle of the top and the middle of the bottom of the installation frame (300), a first electric push rod (520) is fixedly installed on the outer side of the fixed disk (510), the end of the first electric push rod (520) penetrates through the fixed disk (510) and is fixedly installed with a detection component (530), and the inner sides of the two detection components (530) are respectively in fit connection with the top and the bottom of the guide rail body (400).

2. The linear guide flatness detection device according to claim 1, wherein, The clamping mechanism (200) includes a concave seat (210), the concave seat (210) is fixedly installed on both sides of the top of the base frame (100), second electric push rods (220) are fixedly installed at both ends of the concave seat (210), and the output ends of the second electric push rods (220) penetrate through the concave seat (210) and are fixedly connected with a guiding component (230).

3. The linear guide flatness detection device according to claim 2, characterized in that, The guiding component (230) includes a clamping plate (231), the clamping plate (231) is fixedly connected to the inner output end of the second electric push rod (220), a top plate (232) is fixedly connected to the top of the clamping plate (231) at equal intervals, and a guide roller (233) is rotatably connected between the inner sides of each top plate (232) and the clamping plate (231).

4. The linear guide flatness detection device according to claim 3, wherein Rolling balls (234) are rotatably connected to the inner ends of the top of the clamping plate (231) at equal intervals, and the clamping plate (231) is integrally arranged in an L shape.

5. The flatness detection device for linear guide rails according to claim 1, characterized in that The detection component (530) includes a pressure sensor (531), the pressure sensor (531) is fixedly connected to the inner output end of the first electric push rod (520), the pressure sensor (531) is fixedly installed on the inner output end of the first electric push rod (520), a buffer member (532) is fixedly connected to the inner side of the pressure sensor (531), and a guiding member (533) is fixedly connected to the inner side of the buffer member (532).

6. The flatness detection device for linear guide rails according to claim 5, characterized in that, The buffer member (532) includes a bottom plate (5321), the bottom plate (5321) is fixedly connected to the inner end of the pressure sensor (531), buffer springs (5322) are fixedly connected to both ends of the inner side of the bottom plate (5321), the inner sides of the buffer springs (5322) are fixedly connected to the buffer member (532), support rods (5323) are fixedly connected to both ends of the outer side of the buffer member (532), and the ends of the support rods (5323) penetrate through the bottom plate (5321).

7. The linear guide flatness detection device according to claim 6, characterized in that The guiding member (533) includes a concave frame (5331), the concave frame (5331) is fixedly connected to the inner end of the buffer spring (5322), the support rod (5323) is fixedly connected to the outer ends of both sides of the concave frame (5331), the buffer spring (5322) is sleeved on the outer side of the support rod (5323), both inner ends of the concave frame (5331) are rotatably connected with detection rollers (5332), the inner sides of the detection rollers (5332) are in fitting connection with the outer side of the guide rail body (400), one end of the concave frame (5331) is fixedly connected with a driving motor (5333), and the output end of the driving motor (5333) penetrates through the concave frame (5331) and is fixedly connected to one end of the detection roller (5332).

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