Linear guide rail pair measuring equipment

Abstract

The utility model discloses linear guide rail pair measuring equipment, which belongs to the technical field of linear guide rail equipment, and is characterized in that a linear guide rail pair fixing system and a measuring system are arranged on a machine base, a mute box used for covering the linear guide rail pair fixing system and the measuring system is arranged on the machine base, and the measuring system comprises a supporting device, a supporting device is arranged on the machine base, a belt mute module is arranged on the supporting device, an SK module is installed at the output end of the belt mute module, and a measuring device used for measuring noise and friction force is connected to a sliding block of the SK module. The mute box adopts a three-layer vibration isolation structure, so that external noise is effectively isolated, a quiet environment is created for noise measurement, and the measurement accuracy of the noise sensor is guaranteed. In the measuring system, the belt mute module and the SK module accurately control the measuring device to move, the distance between the noise sensor and the sliding block is stabilized, and measuring errors are reduced. The fixing system accurately fixes the guide rail pair, and measurement deviation caused by improper clamping is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to linear guide rail equipment technical field, especially a linear guide rail pair measuring equipment. BACKGROUND

[0002] Linear guide rail pair is a kind of mechanical component for high-precision and high-speed linear reciprocating motion, is widely used in automation machinery, machine tool, electronic manufacturing equipment, medical equipment and other fields, is the important component indispensable in modern industry. Its noise generation is often accompanied by additional friction and vibration, makes the wear of guide rail and its related components aggravate, shortens the service life of guide rail, influences the positioning accuracy and motion accuracy of equipment, leads to the unstable phenomenon of equipment under high speed or heavy load working condition, causes equipment failure or accident, threatens production safety and personnel safety. Noise can cover other potential fault signals, so that the fault of equipment is difficult to be found and handled in time, increases the maintenance cost and downtime of equipment. Excessive friction in guide rail pair also makes equipment unable to operate normally. Therefore, linear guide rail pair manufacturers will carry out noise measurement and friction measurement when leaving factory, and common noise measurement mode is that in the quiet environment where background noise is 10 decibels or more lower than the noise of measured guide rail pair, guide rail pair is installed and fixed, and noise tester is manually held or fixed in specific position to measure. Common friction measurement mode is that sensor detects the tension of guide rail slider in the movement process, thereby indirectly obtaining friction. Or using test instrument to detect, under different load and movement conditions, accurately measuring friction by using friction test unit, and calculating friction coefficient. Since the hole distance and thread hole size of different models of linear guide rail pair are different, different models of linear guide rail pair need to use corresponding model measuring equipment for detection.

[0003] The existing detection method has the following shortcomings:

[0004] 1. When measuring noise by manually holding noise tester, the sound receiving distance cannot be controlled, which may cause inaccurate noise measurement results.

[0005] 2. When measuring different models of linear guide rail pair, different measuring equipment needs to be used to install and fix linear guide rail pair, and clamping is complex and troublesome. INVENTION CONTENTS

[0006] The utility model aims at providing a kind of linear guide rail pair measuring equipment to solve the above problems existing in prior art.

[0007] Technical solution: A linear guide rail pair measuring device, comprising: a machine base, a linear guide rail pair fixing system and a measuring system are arranged on the machine base, a mute box is arranged on the machine base for covering the linear guide rail pair fixing system and the measuring system, the measuring system comprises: a supporting device, the machine base is provided with a supporting device, a belt mute module is arranged on the supporting device, an SK module is installed on the output end of the belt mute module, a measuring device for measuring noise is connected to the slider of the SK module.

[0008] Further, the measuring device comprises: a noise sensor, a noise sensor and an electric clamp jaw for pushing the slider are installed on the slider of the SK module.

[0009] Further, a force sensor is installed on the electric clamp jaw.

[0010] Further, the linear guide rail pair fixing system comprises: a measuring platform, the measuring platform is installed on the machine base, a plurality of opposite radiation sensors are arranged on the measuring platform, a plurality of pressing devices and a plurality of lateral clamping devices are arranged on both sides of the measuring platform.

[0011] Further, the lateral clamping devices correspond to the positions of the pressing devices.

[0012] Further, an L-shaped reference plate for reference positioning of the linear guide rail is arranged on the measuring platform.

[0013] Further, the lateral clamping device comprises: a lateral cylinder, the lateral cylinder is installed on the machine base through a connecting plate, and a clamping block is arranged on the output end of the lateral cylinder.

[0014] Further, the pressing device comprises: a pressing cylinder, a pressing block is installed on the output end of the pressing cylinder.

[0015] Further, the pressing surface of the pressing block is an arc surface.

[0016] Further, a display for receiving noise data is arranged on the machine base.

[0017] Beneficial effects:

[0018] Efficient measurement: the linear guide rail pair fixing system can automatically adapt to guide rails of different specifications, eliminating the traditional frequent replacement of equipment and manual clamping process, greatly saving time and improving measurement efficiency. The measuring system can simultaneously detect noise and friction, obtaining multiple key data in one operation, further compressing the measurement period.

[0019] Precise measurement: The mute box adopts a three-layer vibration isolation structure, effectively isolates external noise, creates a quiet environment for noise measurement, and ensures the accuracy of noise sensor measurement. In the measurement system, the belt mute module and the SK module precisely control the movement of the measurement device, stabilize the distance between the noise sensor and the slider, and reduce measurement errors. The fixed system precisely fixes the guide rail pair to avoid measurement deviation caused by improper clamping.

[0020] Cost reduction: The fixed system has high automation degree, reduces manual clamping work, and reduces labor demand. The equipment is easy to operate, reduces the requirement for professional skills of the operator, and significantly reduces the labor cost.

[0021] Functional integration: The device integrates noise level and friction force measurement functions in one, can comprehensively evaluate the running state of the guide rail pair at one time, and meets the diversified detection needs of manufacturers.

[0022] Easy maintenance: The overall structure design is scientific and reasonable, the parts layout is compact and orderly, and the manufacturing and assembly difficulty is low. When a fault occurs, each part is easy to disassemble, maintain and replace, reduces the equipment downtime, and improves the use efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic diagram of the utility model;

[0024] Figure 2 is a schematic diagram of the installation position of the measurement system of the utility model;

[0025] Figure 3 is a schematic diagram of the structure of the measurement system of the utility model;

[0026] Figure 4 is a schematic diagram of the structure of the measurement device of the utility model;

[0027] Figure 5 is a schematic diagram of the installation position of the force sensor of the utility model;

[0028] Figure 6 is a schematic diagram of the structure of the linear guide rail pair fixing system of the utility model;

[0029] Figure 7 is a side view of the linear guide rail pair fixing system of the utility model.

[0030] The figure marks are: base 1, mute box 2, linear guide rail pair fixing system 3, measurement system 4, supporting device 41, belt mute module 42, SK module 43, measurement device 44, noise sensor 441, electric clamping jaw 442, force sensor 443, measurement platform 31, transmission sensor 32, pressing device 33, lateral clamping device 34, L-shaped reference plate 35, lateral cylinder 343, connecting plate 341, clamping block 342, pressing cylinder 332, pressing block 331, display 5. Detailed Implementation

[0031] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0032] Example 1: As Figure 1 - Figure 7 As shown, a linear guide pair measuring device includes: a base 1, on which a linear guide pair fixing system 3 and a measuring system 4 are mounted; a soundproof box 2 is provided on the base 1 to cover the linear guide pair fixing system 3 and the measuring system 4; the measuring system 4 includes: a support device 41, on which a belt-driven noise reduction module 42 is mounted; an SK module 43 is mounted on the output end of the belt-driven noise reduction module 42; and a measuring device 44 for measuring noise is connected to the slider of the SK module 43. The measuring device 44 includes: a noise sensor 441, on which the noise sensor 441 is mounted and an electric gripper 442 for pushing the slider is mounted. A force sensor 443 is mounted on the electric gripper 442. The linear guide rail fixing system 3 includes: a measuring platform 31, which is mounted on the base 1. Multiple through-beam sensors 32 are mounted on the measuring platform 31. Multiple clamping devices 33 and multiple lateral clamping devices 34 are respectively mounted on both sides of the measuring platform 31, with the lateral clamping devices 34 corresponding to the clamping devices 33. An L-shaped reference plate 35 for benchmark positioning of the linear guide rail is mounted on the measuring platform 31. The lateral clamping device 34 includes a lateral cylinder 343, which is mounted on the base 1 via a connecting plate 341. A clamping block 342 is mounted at the output end of the lateral cylinder 343. The clamping device 33 includes a clamping cylinder 332, with a clamping block 331 mounted at the output end of the clamping cylinder 332. The clamping surface of the clamping block 331 is arc-shaped. A display 5 for receiving noise data and friction data is mounted on the base 1.

[0033] The base 1 provides a mounting platform for other components as the basic support structure of the entire linear guide rail pair measuring device. In this device, the plane of the base 1 is a marble platform, which has high stability and precision retention due to its material properties. Key components such as the linear guide rail pair fixing system 3, the measuring system 4, and the soundproof box 2 are installed on the base 1, and the stability of the base directly affects the working precision of these components. The high-precision flatness of the marble platform base 1 ensures that the measuring platform 31 installed on it is in a horizontal state, providing a stable reference surface for accurate measurement of the linear guide rail pair. At the same time, the good wear resistance and deformation resistance of marble ensure that the base will not affect the measurement accuracy due to its own deformation during long-term use, ensuring the reliability and long-term stability of the device, thereby ensuring the accuracy and repeatability of the entire measurement process. The soundproof box 2 mainly functions to isolate external environmental noise, providing a relatively quiet environment for noise measurement of the linear guide rail pair. The soundproof box 2 adopts a three-layer vibration isolation structure, which effectively blocks external noise and reduces external noise interference on the measurement results. At the same time, it covers the linear guide rail pair fixing system 3 and the measuring system 4, providing protection for the internal measurement environment and preventing unnecessary influences on the measurement process from external factors. By isolating external noise, the soundproof box 2 enables the noise sensor 441 in the measuring system 4 to more accurately measure the noise generated by the linear guide rail pair during operation. The three-layer vibration isolation structure greatly reduces external environmental noise interference on the measurement, improves the accuracy of noise measurement data, avoids measurement result deviations caused by the mixing of external noise, and provides reliable environmental protection for accurate evaluation of the noise level of the linear guide rail pair. The support device 41 passes through the soundproof box 2 at both ends, avoiding noise interference on the measurement results caused by the belt soundproof module 42. The measuring platform 31 is installed on the base 1 and provides a reference plane for placing and positioning the measured linear guide rail pair. The platform is equipped with multiple pairs of sensors 32 for detecting the length and position information of the guide rail. At the same time, the L-shaped reference plate 35 on the platform is used for reference positioning of the linear guide rail, ensuring consistent installation position of the linear guide rail during each measurement and ensuring the accuracy and repeatability of the measurement results. The pairs of sensors 32 are installed on both sides of the measuring platform 31 at a certain distance. Its working principle is to emit and receive signals, and when the signals are blocked by the linear guide rail pair placed on the measuring platform, the pairs of sensors 32 will produce signal changes and transmit this signal to the pressing device 33 and the lateral clamping device 34, triggering the fixing action, thereby achieving accurate detection of the position of the linear guide rail pair and providing accurate basis for subsequent fixing operations. The pressing device 33 includes a pressing cylinder 332 and a pressing block 331, and the output end of the pressing cylinder 332 is installed with the pressing block 331.When the linear guide pair position signal is detected by the through-beam sensor 32, the pressing cylinder 332 is activated, driving the pressing block 331 to move downward. The pressing surface of the pressing block 331 is arc-shaped, which can better fit the upper surface of the measured guide rail, increase the contact area, and provide more stable pressing force to firmly fix the measured guide rail on the measuring platform 31, preventing displacement of the guide rail during measurement and affecting the measurement accuracy. The lateral clamping device 34 corresponds to the position of the pressing device 33 and includes a lateral cylinder 343, a connecting plate 341, and a clamping block 342. The lateral cylinder 343 is installed on the machine base 1 through the connecting plate 341. When the pressing device 33 completes the work, the output end of the lateral cylinder 343 pushes the clamping block 342 to clamp the left and right ends of the linear guide pair along the reference surface, further enhancing the stability of the linear guide pair on the measuring platform, ensuring that the linear guide pair remains in a fixed state during the entire measurement process, and avoiding measurement errors caused by guide rail shaking or displacement. The linear guide pair fixing system 3 can automatically fix linear guide pairs of different specifications. Through the cooperative work of the through-beam sensor 32, the pressing device 33, and the lateral clamping device 34, the linear guide pair is quickly and accurately fixed, saving the time needed to replace the measuring equipment and manually clamp when measuring different types of linear guide pairs, and improving the measurement efficiency. At the same time, compared with traditional manual clamping, this automatic fixing method can better ensure the stability and positioning accuracy of the linear guide pair during the measurement process, reduce measurement errors caused by improper clamping, and provide reliable fixing support for accurately measuring the noise and friction of the linear guide pair. The support device 41 is installed on the machine base 1 to provide support and installation basis for the belt silent module 42, ensuring that the belt silent module 42 can work stably. It ensures the levelness and perpendicularity of the belt silent module 42 during operation, providing stable foundation support for the accurate movement of the measuring device 44, indirectly affecting the positioning accuracy of the measuring device 44 during measurement. The belt silent module 42 is installed on the support device 41 and penetrates the silent box 2, with its output end connected to the SK module 43. Its main function is to drive the measuring device 44 to move in the X-axis direction, and through motor-driven belt, it realizes accurate displacement control of the measuring device 44 in the X-axis direction, so that the measuring device 44 can measure at different positions above the linear guide pair, meeting the detection needs of different parts of the linear guide pair. The SK module 43 is connected to the belt silent module 42, with the slide block connected to the measuring device 44. The function of the SK module 43 is to drive the measuring device 44 to move in the Z-axis direction, and work with the belt silent module 42 to realize accurate motion control of the measuring device 44 in three-dimensional space, ensuring that the measuring device 44 can accurately reach the position that needs to be measured on the linear guide pair, improving the accuracy and comprehensiveness of the measurement. The measuring device 44 is composed of a noise sensor 441, an electric clamp jaw 442, and a force sensor 443.The noise sensor 441 is installed on the slider of the SK module 43, suspended above the slider side of the measured linear guide pair, and maintains a fixed distance from the slider. During the movement of the slider, the noise generated by the linear guide pair is measured in real time, providing data basis for evaluating the noise level of the linear guide pair. The electric clamping jaw 442 is clamped at both ends of the slider of the measured linear guide pair, driving the slider to move back and forth with the X-axis module, simulating the movement state of the linear guide pair in actual work. The force sensor 443 is installed at both ends of the electric clamping jaw 442 in contact with the slider. During the movement of the slider, the friction force between the linear guide and the slider is detected, providing data support for evaluating the friction performance of the linear guide pair. Through the cooperative work of each component, the measurement system 4 realizes accurate measurement of the noise and friction of the linear guide pair. The high-precision motion control of the belt mute module 42 and the SK module 43 enables the measurement device 44 to accurately follow the movement trajectory of the slider of the linear guide pair, ensuring the stable distance between the noise sensor 441 and the slider, and avoiding noise measurement errors caused by changes in measurement distance. At the same time, the force sensor 443 accurately detects the friction force in real time during the movement of the slider driven by the electric clamping jaw 442, combined with the data of the noise sensor 441, providing reliable data support for comprehensive evaluation of the performance of the linear guide pair, improving the stability and accuracy of the measurement data. The display 5 is installed on the base 1, used to receive the signal data transmitted by the noise sensor 441 and the force sensor 443 in the measurement system 4, and display these data in the form of data graphs. The operator can observe the data graphs on the display 5 to intuitively understand the noise measurement data and friction force measurement data of the measured linear guide pair, which is convenient for comparison with standard data to judge whether the linear guide pair is qualified. The display 5 provides an intuitive data display interface for the operator, making the measurement results clear at a glance, and facilitating the operator to make judgments quickly. The data is presented in the form of data graphs, which is easier for the operator to observe the trend and characteristics of the data compared to simple numerical display, improving detection efficiency and judgment accuracy, reducing the requirement for professional skills of the operator, and making the entire measurement process more convenient and efficient.

[0034] Working process

[0035] Preparation stage: First, place the measured linear guide pair on the measurement platform 31 so that it is close to the L-shaped reference plate 35. After placement, the through-beam sensor 32 installed at a certain distance on both sides of the measurement platform 31 starts to work. When the signal is blocked by the linear guide pair placed on the measurement platform, the through-beam sensor 32 detects the position signal of the linear guide pair and transmits this signal to the pressing device 33 and the lateral clamping device 34.

[0036] The fixed stage: after receiving the signal of the transmission sensor 32, the pressing cylinder 332 in the pressing device 33 starts to drive the pressing block 331 to move downward. Since the pressing surface of the pressing block 331 is an arc surface, it can better fit the upper surface of the measured guide rail, increase the contact area, provide more stable pressing force, firmly fix the measured guide rail on the measuring platform 31, and prevent displacement of the guide rail during the measurement process. After the pressing device 33 is completed, the lateral clamping device 34 starts to work. The lateral cylinder 343 in the lateral clamping device 34 is installed on the base 1 through the connecting plate 341, and the lateral cylinder 343 pushes the clamping block 342 to clamp the left and right ends of the linear guide along the reference surface, further enhancing the stability of the linear guide on the measuring platform, and ensuring that the linear guide is always in a fixed state during the entire measurement process. When the linear guide is fixed, the pressing device 33 is closed and the pressing block 331 is retracted. At this time, the linear guide fixing system 3 completes the fixing operation of the linear guide, and prepares for the subsequent measurement work.

[0037] The measurement stage: the measurement system 4 starts to work, the belt mute module 42 is installed on the supporting device 41 and penetrates the mute box 2, and the output end is connected with the SK module 43. The belt mute module 42 drives the belt through the motor to drive the measuring device 44 to move in the X-axis direction; the SK module 43 is connected with the belt mute module 42 to drive the measuring device 44 to move in the Z-axis direction. The measuring device 44 is composed of a noise sensor 441, an electric clamp jaw 442 and a force sensor 443. The electric clamp jaw 442 is clamped at both ends of the slider of the measured linear guide, and under the control of the belt mute module 42 and the SK module 43, it drives the slider to make reciprocating motion with the X-axis module, simulating the motion state of the linear guide in actual work. The noise sensor 441 is installed on the slider of the SK module 43, suspended above the slider side of the measured linear guide, and maintains a fixed distance with the slider. During the movement of the slider, it measures the noise generated by the linear guide in real time. The force sensor 443 is installed at both ends of the electric clamp jaw 442 in contact with the slider, and detects the friction force between the linear guide and the slider during the movement of the slider. The noise sensor 441 and the force sensor 443 transmit the measured signals to the data integration device.

[0038] Data processing and judgment stage: the data integration device analyzes and processes the signals received by the noise sensor 441 and the force sensor 443, obtains the noise measurement data and the friction force measurement data of the measured linear guide vice. These data are transmitted to the display 5, and the display 5 displays the data in the form of a data graph. The operator compares the measurement data with the standard data by observing the data graph on the display 5, and judges whether the linear guide vice is qualified. If the measurement data is within the standard range, the linear guide vice is determined to be qualified; if the measurement data exceeds the standard range, the linear guide vice is determined to be unqualified. Thus, the measurement of the linear guide vice is completed. During the entire working process, the mute box 2 isolates the external environmental noise, providing a relatively quiet environment for noise measurement, ensuring the accuracy of the measurement results. At the same time, the various components of the device work cooperatively to achieve efficient and accurate measurement of the linear guide vice, meeting the needs of manufacturers for performance testing of the linear guide vice.

[0039] 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 of the technical solutions of the utility model can be made 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 linear guide pair measuring device, characterized in that, Include: The base (1), the linear guide rail pair fixed system (3) and the measuring system (4) are arranged on the base (1), the mute box (2) for covering the linear guide rail pair fixed system (3) and the measuring system (4) is arranged on the base (1), the measuring system (4) comprises: support device (41), the support device (41) is arranged on the base (1), the belt mute module (42) is arranged on the support device (41), the output end of the belt mute module (42) is provided with SK module (43), the slider of the SK module (43) is connected with the measuring device (44) for measuring noise.

2. The linear guide rail pair measuring apparatus according to claim 1, wherein The measuring device (44) comprises: noise sensor (441), the slider of the SK module (43) is provided with noise sensor (441) and electrically operated clamp jaw (442) for pushing the slider.

3. The linear guide rail pair measuring apparatus according to claim 2, wherein The electrically operated clamp jaw (442) is provided with force sensor (443).

4. The linear guide rail pair measuring apparatus according to claim 1, characterized by, The linear guide rail pair fixed system (3) comprises: measuring platform (31), the measuring platform (31) is installed on the base (1), a plurality of emission sensors (32) are arranged on the measuring platform (31), a plurality of pressing devices (33) and a plurality of lateral clamping devices (34) are arranged on both sides of the measuring platform (31).

5. The linear guide rail pair measuring apparatus according to claim 4, wherein The lateral clamping device (34) corresponds to the position of the pressing device (33).

6. The linear guide rail pair measuring apparatus according to claim 4, wherein The measuring platform (31) is provided with L-shaped reference plate (35) for reference positioning of linear guide rail.

7. The linear guide rail pair measuring apparatus according to claim 5, wherein The lateral clamping device (34) comprises: lateral cylinder (343), the lateral cylinder (343) is installed on the base (1) through the connecting plate (341), the output end of the lateral cylinder (343) is provided with clamping block (342).

8. The linear guide rail pair measuring apparatus according to claim 5, wherein The pressing device (33) comprises: pressing cylinder (332), the output end of the pressing cylinder (332) is provided with pressing block (331).

9. The linear guide rail pair measuring apparatus according to claim 8, wherein The pressing surface of the pressing block (331) is arc surface.

10. The linear guide rail pair measuring apparatus according to claim 1, characterized by, The base (1) is provided with a display (5) for receiving noise data.

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