Linear guide rail pair precision detection device

Abstract

The utility model relates to a precision detection device for a linear guide rail pair, which is mounted on a guide rail to be detected by utilizing a sliding chute which is arranged at the bottom of a sliding mounting base and is matched with the cross section of the guide rail to be detected. The first displacement sensor and the second displacement sensor are used for collecting the displacement of the sliding block relative to the guide rail bottom face reference A and the displacement of the sliding block relative to the guide rail bottom face reference B respectively, and after the collected data are sent to the data transmission unit, the data transmission unit can upload the data to the upper computer for informatization and digitization. Detection quality analysis is realized, and the purposes of high automation degree and convenience and high efficiency in operation are achieved.

Description

Technical Field

[0001] The utility model relates to a detection device, in particular to a detection device for the parallelism of a linear guide pair. Background Art

[0002] According to the current standards, linear guide rail inspection includes the following two inspection items. The first is the parallelism of the slider movement to the guide rail reference surface: parallelism to the guide rail bottom reference A, and parallelism to the guide rail side reference B. According to the measured values, the guide rail can be graded for accuracy.

[0003] At present, the precision inspection of linear guide rails in China is generally carried out manually: the inspector fixes the linear guide rail on a marble platform, attaches the micrometer to the slider, moves the slider manually, and records the inspection value. This method has the following problems: 1. The inspection method is inefficient and easy to introduce human operation errors; 2. The measurement data is difficult to be informatized and digitized, and the inspection quality analysis and traceability cannot be realized. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and to provide a linear guide rail pair precision detection device which has high automation, convenient and efficient operation and can digitally process detection results.

[0005] In order to achieve the above-mentioned purpose, the utility model discloses a linear guide pair precision detection device, characterized in that it includes a sliding mounting base, on which a first displacement sensor for measuring the parallelism of a guide rail bottom surface reference A, a second displacement sensor for measuring the parallelism of a guide rail side surface reference B, and a data acquisition and processing device are fixedly arranged, the data acquisition and processing device is provided with a first displacement data acquisition unit, a second displacement data acquisition unit and a data transmission unit, the output end of the first displacement data acquisition unit and the output end of the second displacement data acquisition unit are respectively connected to the data transmission unit, the bottom of the sliding mounting base is also provided with a slide groove matching the cross-section of the guide rail to be measured, a grating ruler is provided on one side of the sliding mounting base, and the output end of the grating ruler is connected to the data transmission unit.

[0006] As a further configuration of the utility model, the first displacement sensor is mounted on a first bracket, the first bracket is provided with a longitudinal adjustment mechanism, the second displacement sensor is mounted on a second bracket, and the second bracket is provided with a transverse adjustment mechanism.

[0007] As a further configuration of the utility model, the main body of the first bracket is in the shape of a strip as a whole, and a clamping structure with a slit and a clamping screw is provided at one end. A long through groove is provided on the main body of the first bracket along the length direction, and a locking bolt is provided in the long through groove; the first bracket and the second bracket have the same structure.

[0008] As a further configuration of the utility model, the linear guide pair precision detection device is also provided with a mounting block, the mounting block has sliding grooves that slide with the main body of the first bracket and the second bracket respectively, the sliding grooves are provided with locking screw holes that cooperate with the locking bolts, the first bracket and the second bracket are respectively slidably fitted in the sliding grooves through the main body, respectively forming the longitudinal adjustment mechanism and the lateral adjustment mechanism, and are fixed to the mounting block by the locking bolts that cooperate with the locking screw holes, and the mounting block is fixed to the sliding mounting base.

[0009] As a further configuration of the utility model, the first displacement sensor and the second displacement sensor are grating micrometers.

[0010] As a further configuration of the utility model, the detection device is also provided with a driving device for driving the sliding mounting base to slide along the guide rail.

[0011] The linear guide pair precision detection device of the utility model is installed on the guide rail to be measured by utilizing the slide groove matched with the cross section of the guide rail to be measured provided at the bottom of the sliding installation base, and the displacement of the slider to the guide rail bottom surface reference A and the displacement of the slider to the guide rail bottom surface reference B are respectively collected by the first displacement sensor and the second displacement sensor, and after the collected data is sent to the data transmission unit, the data transmission unit can upload it to the host computer for informatization and digitization, and realize the detection quality analysis, thereby achieving the purpose of high degree of automation, convenient and efficient operation.

[0012] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0013] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusions, and the orientations or positional relationships indicated by the terms "upper", "lower", "longitudinal", "lateral", etc. are based on the orientations or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have specific orientations, or to be constructed and operated in specific orientations. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 This is a front view of a specific embodiment of the utility model;

[0015] Attached Figure 2 The three-dimensional structure of the specific embodiment of the utility model is shown in FIG. Figure 1 ;

[0016] Attached Figure 3 The three-dimensional structure of the specific embodiment of the utility model is shown in FIG. Figure 2 ;

[0017] Attached Figure 4 This is a schematic diagram of the three-dimensional structure of the specific embodiment of the utility model after the grating is hidden;

[0018] Attached Figure 5 This is a schematic diagram of the three-dimensional structure of the sliding mounting base, the first displacement sensor and the second displacement sensor in a specific embodiment of the utility model;

[0019] Attached Figure 6 This is a schematic diagram of the partial exploded structure of the sliding mounting base and the first displacement sensor and the second displacement sensor in a specific embodiment of the utility model;

[0020] Attached Figure 7 It is a schematic diagram of the use status of a specific embodiment of the utility model. DETAILED DESCRIPTION

[0021] like Figure 1-4 As shown, the linear guide pair precision detection device of the utility model comprises a sliding mounting base 1, on which the first displacement sensor 2 for measuring the parallelism of the bottom surface reference A of the guide rail 7, the second displacement sensor 3 for measuring the parallelism of the side reference B of the guide rail 7, and the data acquisition and processing device 8 are fixedly arranged. The data acquisition and processing device 8 is provided with a first displacement data acquisition unit, a second displacement data acquisition unit and a data transmission unit. The output end of the first displacement data acquisition unit and the output end of the second displacement data acquisition unit are respectively connected to the data transmission unit. The bottom of the sliding mounting base 1 is also provided with a slide groove 101 matching the cross section of the guide rail 7 to be measured. A grating ruler 4 is provided on one side of the sliding mounting base 1, and the output end of the grating ruler 4 is connected to the data transmission unit. Among them, the first displacement sensor 2 and the second displacement sensor 3 can be selected from existing mature products in the market on the basis that the measurement accuracy meets the design requirements. In this specific embodiment, the first displacement sensor 2 and the second displacement sensor 3 are grating micrometers.

[0022] In order to allow the linear guide pair precision detection device of the utility model to have a wider adaptability range, as a further setting, the first displacement sensor 2 is preferably installed on the first bracket 5, and the first bracket 5 is provided with a longitudinal adjustment mechanism, and the second displacement sensor 3 is preferably installed on the second bracket 6, and the second bracket 6 is provided with a transverse adjustment mechanism, so that it can adapt to guide rails 7 of various specifications.

[0023] like Figure 5 , 6As shown, in this specific embodiment, the first bracket 5 and the second bracket 6 have the same structure. The first bracket 5 is taken as an example below: the main body of the first bracket 5 is a strip-shaped component as a whole, and a clamping structure with a slit 501 and a clamping screw 10 is provided at one end. A long through groove 502 is provided on the main body of the first bracket 5 along the length direction, and a locking bolt 11 is provided in the long through groove 502.

[0024] The linear guide pair precision detection device is also provided with a mounting block 9, and the mounting block 9 has sliding grooves 901 that are respectively slidably matched with the main bodies of the first bracket 5 and the second bracket 6, and the sliding grooves 901 are provided with locking screw holes that match the locking bolts 11. The first bracket 5 and the second bracket 6 are slidably matched in the sliding grooves 901 through the main bodies, and are fixed to the mounting block 9 by the locking bolts 11 that match the locking screw holes, and the mounting block 9 is fixed to the sliding mounting base 1. When it is necessary to adjust the position of the first displacement sensor 2 or the second displacement sensor 3, it is only necessary to loosen the corresponding locking bolts 11, move the first bracket 5 or the second bracket 6 to a suitable displacement, and then tighten the locking bolts 11 to fix it.

[0025] In order to make the sliding installation base 1 slide more smoothly and reduce the influence of human factors, the detection device is preferably further provided with a driving device for driving the sliding installation base 1 to slide along the guide rail 7. Figure 7 As shown, in this specific embodiment, the driving device includes a linear driving unit 12, a synchronous belt module 13 and a flexible connecting member 14, wherein the flexible connecting member 14 connects the synchronous belt module 13 and the sliding mounting base 1, wherein the linear driving unit 12 is composed of a motor and a reduction mechanism, and the linear driving unit 12 drives the flexible connecting member 14, thereby driving the sliding mounting base 1.

[0026] The present invention is not limited to the above-mentioned specific implementation modes, but also includes other various equivalent specific implementation modes that can be adopted by a person skilled in the art based on the contents disclosed in the present invention. Any simple changes or modifications made to the design structure and concept of the present invention fall within the protection scope of the present invention.

Claims

1. A linear guide pair accuracy detection device, characterized in that: The invention comprises a sliding mounting base, on which a first displacement sensor for measuring the parallelism of a guide rail bottom surface reference A, a second displacement sensor for measuring the parallelism of a guide rail side surface reference B, and a data acquisition and processing device are fixedly arranged. The data acquisition and processing device is provided with a first displacement data acquisition unit, a second displacement data acquisition unit and a data transmission unit. The output end of the first displacement data acquisition unit and the output end of the second displacement data acquisition unit are respectively connected to the data transmission unit. A slide groove matching the cross section of the guide rail to be measured is also provided at the bottom of the sliding mounting base. A grating ruler is provided on one side of the sliding mounting base, and the output end of the grating ruler is connected to the data transmission unit.

2. The linear guide pair accuracy detection device according to claim 1, characterized in that: The first displacement sensor is mounted on a first bracket, and the first bracket is provided with a longitudinal adjustment mechanism. The second displacement sensor is mounted on a second bracket, and the second bracket is provided with a transverse adjustment mechanism.

3. The linear guide pair accuracy detection device according to claim 2, characterized in that: The main body of the first bracket is in the shape of a strip as a whole, and a clamping structure with a slit and a clamping screw is provided at one end. A long through groove is provided on the main body of the first bracket along the length direction, and a locking bolt is arranged in the long through groove; the first bracket and the second bracket have the same structure.

4. The linear guide pair accuracy detection device according to claim 3, characterized in that: The linear guide rail pair precision detection device is also provided with a mounting block, the mounting block has sliding grooves that slide with the main body of the first bracket and the second bracket respectively, the sliding grooves are provided with locking screw holes that cooperate with the locking bolts, the first bracket and the second bracket are respectively slidably fitted in the sliding grooves through the main body, respectively forming the longitudinal adjustment mechanism and the lateral adjustment mechanism, and are fixed to the mounting block by the locking bolts that cooperate with the locking screw holes, and the mounting block is fixed to the sliding mounting base.

5. The linear guide pair accuracy detection device according to any one of claims 1 to 4, characterized in that: The first displacement sensor and the second displacement sensor are grating micrometers.

6. The linear guide pair accuracy detection device according to claim 5, characterized in that: The detection device is also provided with a driving device for driving the sliding mounting base to slide along the guide rail.

7. The linear guide pair accuracy detection device according to claim 1, characterized in that: The detection device is also provided with a driving device for driving the sliding mounting base to slide along the guide rail.

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