Guide rail metering tool and guide rail metering method

Abstract

The invention relates to the technical field of form and location tolerance detection equipment, and discloses a guide rail metering tool and a metering method.The guide rail metering tool comprises a sliding block arranged on a guide rail to be detected in a sliding mode; the first end of the first mounting plate is arranged on the sliding block; the second mounting plate is arranged on the side surface of the second end of the first mounting plate; the first detection meter is arranged at the second end of the first mounting plate, and the detection end faces the guide rail side; the second detection meter is arranged on the second mounting plate, and the detection end of the second detection meter faces the guide rail side. The guide rail metering tool can be firmly and stably installed on guide rails of different specifications, and can perform efficient and accurate metering detection on two surfaces of the guide rail at the same time.

Description

Technical Field

[0001] This invention relates to the field of geometric tolerance testing equipment, specifically to a guide rail dial indicator fixture and a guide rail dial indicator method. Background Technology

[0002] In the assembly and inspection of linear conveying mechanisms, it is usually necessary to check the geometric tolerances such as straightness and perpendicularity of the guide rails. However, existing dial indicator methods have the following problems: 1. Single-dial inspection: Existing dial gauge methods only use a single dial gauge instrument, which cannot simultaneously compare the form and position tolerances of two surfaces of the guide rail, resulting in low inspection efficiency; 2. Poor installation stability: The existing fixing method of dial indicator fixtures is relatively simple and is easily affected by vibration or displacement, which in turn introduces detection errors; 3. Insufficient versatility: Existing dialing fixtures are difficult to adapt to linear conveying mechanisms of different specifications, requiring frequent fixture changes during use, which reduces work efficiency. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a guide rail dial indicator fixture and a guide rail dial indicator method, which can be firmly and stably installed on guide rails of different specifications, and can simultaneously perform efficient and accurate dial indicator testing on both surfaces of the guide rail.

[0004] According to one embodiment of the present invention, a guide rail dial indicator fixture is provided, comprising: a slider slidably disposed on the guide rail to be tested; a first mounting plate having a first end disposed on the slider; a second mounting plate disposed on the side of the second end of the first mounting plate; a first dial indicator disposed on the second end of the first mounting plate with its testing end facing the guide rail side; and a second dial indicator disposed on the second mounting plate with its testing end facing the guide rail side.

[0005] As one embodiment, the guide rail marking fixture further includes a connecting plate, which is bolted between the first mounting plate and the slider.

[0006] In one embodiment, the first mounting plate is provided with a plurality of first mounting holes penetrating the plate body, and the side of the first mounting plate is provided with a plurality of blind holes, the blind holes being provided with internal threads; the second mounting plate is provided with a plurality of second mounting holes penetrating the plate body; the first mounting plate is connected to the connecting plate by bolts passing through the first mounting holes; the second mounting plate is connected to the first mounting plate by bolts passing through the second mounting holes and the blind holes.

[0007] In one implementation, both the first and second test gauges are dial gauges or percentage gauges.

[0008] As one embodiment, the guide rail dial indicator fixture further includes: two positioning clamps, the first end of which is bolted to the first mounting plate. The two positioning clamps are formed with a first limiting groove and a first positioning hole that are opposite to each other. The first limiting groove is used to clamp the first dial indicator, and the first positioning hole is used to pass a positioning bolt.

[0009] In one embodiment, the axis of the first positioning hole is perpendicular to the length direction of the first detection gauge.

[0010] As one embodiment, the guide rail dial indicator fixture further includes: two positioning clamps, the first end of which is bolted to the second mounting plate. The two positioning clamps are formed with opposing second limiting grooves and opposing second positioning holes. The second limiting grooves are used to clamp the second dial indicator, and the second positioning holes are used to pass through positioning bolts.

[0011] In one embodiment, the axis of the second positioning hole is perpendicular to the length direction of the second detection gauge.

[0012] According to one embodiment of the present invention, a method for measuring the straightness and perpendicularity of a guide rail is provided, comprising the following steps: S1, mounting a second mounting plate on a first mounting plate, mounting the first mounting plate on a slider, assembling the slider on the guide rail to be tested, mounting a first measuring gauge on the first mounting plate, and mounting a second measuring gauge on the second mounting plate; S2, adjusting the positions of the first measuring gauge and the second measuring gauge so that the measuring end of the first measuring gauge abuts against one surface of the guide rail, and the measuring end of the second measuring gauge abuts against another surface of the guide rail; S3, moving the slider along the guide rail, synchronously reading the readings of the first measuring gauge and the second measuring gauge that move with the slider, and analyzing the straightness and perpendicularity of the guide rail.

[0013] As one embodiment, S1 further includes: mounting a positioning clamping plate on the first mounting plate, mounting a positioning clamping block on the second mounting plate, clamping and fixing the first detection gauge in the first limiting groove, and clamping and fixing the second detection gauge in the second limiting groove.

[0014] As described above and through practical application, the guide rail dial indicator fixture of this invention utilizes a first mounting plate and a second mounting plate to respectively mount the first and second indicator gauges. Combined with the sliding slider on the guide rail, this ensures the fixture can be securely and stably installed on guide rails of different specifications, and can simultaneously perform efficient and accurate dial indicator testing on both surfaces of the guide rail. It eliminates the need for repeated disassembly and adjustment, significantly shortening testing time and improving testing efficiency, thus adapting to the rapid testing needs of mass production scenarios.

[0015] Through the precise cooperation between the slider and the guide rail, combined with the rigid connection structure of the connecting plate, positioning clamp, and positioning block, the entire fixture can be firmly installed on the guide rail, effectively resisting the influence of vibration and inertial force, and preventing the fixture from shifting or shaking. At the same time, the precise clamping and fixing of the measuring instrument by the positioning clamp and positioning block ensures the coaxiality of the measuring instrument installation, ensures stable contact between the measuring end and the guide rail surface, and significantly improves the measuring accuracy.

[0016] By using the combination of multiple first mounting holes on the first mounting plate, multiple blind holes on the side of the first mounting plate, and multiple second mounting holes on the second mounting plate, the installation positions of the first and second test gauges can be flexibly adjusted. Combined with the adjustment of the installation height by the connecting plate, the fixture can be adapted to the testing needs of guide rails with different widths and heights, eliminating the need for frequent fixture changes, reducing usage costs, and improving work efficiency. Attached Figure Description

[0017] Figure 1 and Figure 2 This is a schematic diagram of the guide rail dial indicator fixture from two different perspectives in one embodiment of the present invention.

[0018] Figure 3 This is a flowchart of a guide rail marking method according to one embodiment of the present invention.

[0019] The attached figures are labeled as follows: 1. Slider; 2. First mounting plate; 3. Second mounting plate; 4. First gauge; 5. Second gauge; 6. Connecting plate; 7. First mounting hole; 8. Blind hole; 9. Second mounting hole; 10. Positioning clamp; 11. Positioning clamp; 12. First positioning hole; 13. Second positioning hole. Detailed Implementation

[0020] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0021] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. It should be noted that in this disclosure, the terms "comprising," "configured with," and "set in" are used to indicate an open-ended inclusion, meaning that additional elements / components / etc. may exist besides those listed; the terms "first," "second," etc., are used only as labels and are not intended to limit the number or order of objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0022] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] like Figure 1 and Figure 2 As shown in the figure, in this embodiment, a guide rail dial gauge fixture is disclosed, which is mainly used to perform shape and position detection on the surface of the guide rail. The fixture can be firmly and stably installed on guide rails of different specifications, and can simultaneously install two dial gauges to achieve simultaneous, efficient and high-precision detection of two related surfaces of the guide rail, thereby quickly and accurately evaluating the straightness and perpendicularity of the guide rail.

[0024] The guide rail dial indicator fixture mainly includes a slider 1, a first mounting plate 2, a second mounting plate 3, a first dial indicator 4, and a second dial indicator 5. The slider 1 is slidably mounted on the guide rail to be inspected, serving as a reference for the fixture's movement along the guide rail. The inner side of the slider 1 has a groove that matches the cross-sectional shape of the guide rail. The groove is clearance-fitted to the guide rail, ensuring that the slider 1 can slide smoothly along the guide rail without lateral deviation.

[0025] The first mounting plate 2 has its first end attached to the slider 1. The second mounting plate 3 is located on the side of the second end of the first mounting plate 2. The second mounting plate 3 and the first mounting plate 2 form a mounting structure at a certain angle. Figure 1 As shown, in this embodiment, the left end of the first mounting plate 2 is disposed on the slider 1, and the side of the right end is connected to the second mounting plate 3, and the two are arranged perpendicular to each other.

[0026] The first detection gauge 4 is located at the second end of the first mounting plate 2, i.e. Figure 1 The first gauge 4 and the second gauge 5 are mounted on the right end of the guide rail, with their detection end facing the surface to be measured, such as the upper surface of the guide rail. The second gauge 5 is mounted on the second mounting plate 3, with its detection end facing another surface to be measured on the guide rail, such as the side surface of the guide rail. Both the first gauge 4 and the second gauge 5 are dial indicators or micrometers, and the user can choose one according to the accuracy requirements.

[0027] The slider 1, the first mounting plate 2, and the second mounting plate 3 form a rigid movable support, which enables the first measuring gauge 4 and the second measuring gauge 5 to move synchronously with the slider 1 on the guide rail and maintain their relative positional relationship with the surface being measured on the guide rail.

[0028] In this embodiment, the guide rail dial indicator fixture utilizes the first mounting plate 2 and the second mounting plate 3 to respectively mount the first gauge 4 and the second gauge 5. Combined with the slider 1 sliding on the guide rail, this ensures the fixture can be securely and stably installed on guide rails of different specifications, and can simultaneously perform efficient and accurate dial indicator testing on both surfaces of the guide rail. No repeated disassembly and adjustment are required, significantly shortening testing time and improving testing efficiency, making it suitable for the rapid testing needs of mass production scenarios.

[0029] In this embodiment, a connecting plate 6 is also bolted between the first mounting plate 2 and the slider 1. The connecting plate 6 is bolted to the top of the slider 1, and the top of the connecting plate 6 has a mounting surface that mates with the first mounting plate 2. The connecting plate 6 serves as a transition and enhances the connection rigidity, while also facilitating the adjustment of the height or position of the first mounting plate 2 relative to the slider 1 to accommodate guide rails of different sizes.

[0030] In this embodiment, the first mounting plate 2 is a cuboid plate with several through mounting holes 7 for bolting to the connecting plate 6. By selecting different mounting holes 7, the horizontal position of the first mounting plate 2 can be finely adjusted, and it can be connected to connecting plates 6 of different specifications, thus making it suitable for guide rails of different specifications. The side of the first mounting plate 2 has multiple blind holes 8 with internal threads, and the blind holes 8 are evenly distributed along the length of the first mounting plate 2.

[0031] The second mounting plate 3 has several second mounting holes 9 penetrating the plate body. The first mounting plate 2 is fixedly connected to the connecting plate 6 by bolts passing through the first mounting holes 7. The second mounting plate 3 is connected to the first mounting plate 2 by bolts passing through the second mounting holes 9 and screwed into the blind holes 8 on the side of the first mounting plate 2, achieving an adjustable side connection. By selecting different combinations of blind holes 8 and second mounting holes 9, the position of the second mounting plate 3 relative to the first mounting plate 2 can be flexibly adjusted.

[0032] The combination of the first mounting plate 2, the second mounting plate 3, and the connecting plate 6 in this configuration enhances the versatility and adjustability of the fixture. Through the coordinated arrangement of multiple first mounting holes 7 on the first mounting plate 2, multiple blind holes 8 on the side of the first mounting plate 2, and multiple second mounting holes 9 on the second mounting plate 3, the installation positions of the first gauge 4 and the second gauge 5 can be flexibly adjusted. Combined with the adjustment of the installation height using the connecting plate 6, the fixture can adapt to the testing needs of guide rails with different widths and heights, eliminating the need for frequent fixture changes, reducing operating costs, and improving work efficiency. In specific applications, according to actual needs, appropriate positions of the first mounting holes 7 and blind holes 8 are selected on the first mounting plate 2, and appropriate positions of the second mounting holes 9 are selected on the second mounting plate 3, so that the first gauge 4 and the second gauge 5 are installed in the required positions to test the straightness and perpendicularity of the guide rail.

[0033] Furthermore, in this embodiment, the guide rail dial indicator fixture also includes two positioning clamps 10 and two positioning blocks 11 to more securely and accurately mount the two dial indicators. Specifically, the first ends of the two positioning clamps 10, i.e. Figure 1 The left end is fixed to the first mounting plate 2 by bolts. The inner surfaces of the two positioning clamps 10 are formed with opposing first limiting grooves for jointly clamping the rod of the first measuring gauge 4. The two positioning clamps 10 are also provided with opposing first positioning holes 12 for passing through positioning bolts. By tightening the positioning bolts, the first measuring gauge 4 in the first limiting groove can be locked.

[0034] Two positioning clamping blocks 11 are fixed to the second mounting plate 3 by bolts. Opposite inner surfaces of the two positioning clamping blocks 11 have opposing second limiting grooves for jointly clamping the rod of the second gauge 5. Opposite second positioning holes 13 are formed on the two positioning clamping blocks 11 for passing positioning bolts to lock the second gauge 5. Figure 2 As shown, in this embodiment, the gauge rod of the second measuring gauge 5 passes through the second mounting plate 3 and the two positioning clamps 11. To ensure that the two positioning clamps 11 can slide relative to each other along the surface direction of the second mounting plate 3, the diameter of the bolt that fastens the positioning clamps 11 and the second mounting plate 3 together is set to be smaller than the inner diameter of the mounting hole through which it passes.

[0035] In this embodiment, the axial direction of the first positioning hole 12 is perpendicular to the length direction of the first measuring gauge 4, i.e., the direction of the gauge rod, and the axial direction of the second positioning hole 13 is perpendicular to the length direction of the second measuring gauge 5. This vertical force application locking method can provide a larger locking torque and prevent the measuring gauge from loosening or rotating during movement.

[0036] like Figure 3As shown, in this embodiment, a guide rail dial indicator method is also disclosed. This method employs the aforementioned guide rail dial indicator operation and can simultaneously detect the form and position tolerances of two surfaces of the guide rail. Specifically, it includes the following steps: Step S1: Install the second mounting plate 3 on the side of the first mounting plate 2 with bolts; install the first mounting plate 2 on the slider 1; assemble the slider 1 on the guide rail to be tested, ensuring smooth sliding without jamming; install the first test gauge 4 on the first mounting plate 2, and install the second test gauge 5 on the second mounting plate 3.

[0037] Specifically, in this embodiment, the first gauge 4 is mounted on the first mounting plate 2 via a positioning clamp 10, and the second gauge 5 is mounted on the second mounting plate 3 via a positioning clamp 11. During installation, the positioning clamp 10 is first mounted on the first mounting plate 2, then the first gauge 4 is clamped and fixed in the first limiting groove, and the first gauge 4 is locked by inserting a positioning bolt into the first positioning hole 12. Similarly, the positioning clamp 11 is first mounted on the second mounting plate 3, then the second gauge 5 is clamped and fixed in the second limiting groove, and the second gauge 5 is locked by inserting a positioning bolt into the second positioning hole 13.

[0038] Step S2: Adjust the position and angle of the first gauge 4 on the first mounting plate 2 so that its measuring end is vertically and stably pressed against the first surface to be measured on the guide rail (such as the top surface); adjust the position and angle of the second gauge 5 on the second mounting plate 3 so that its measuring end is vertically and stably pressed against the second surface to be measured on the guide rail (such as the side surface). Pre-press both gauges by 0.15-0.2mm and zero them.

[0039] Step S3: Move slider 1 along the guide rail and simultaneously read the readings of the first detection table 4 and the second detection table 5 that follow slider 1 to analyze the straightness and perpendicularity of the guide rail.

[0040] Slide 1 is moved slowly and uniformly along the detection length of the guide rail. During this process, the changes in the readings of the first and second gauges 4 and 5 are observed and recorded simultaneously, or recorded via a data acquisition device. Based on the changes in the readings of the first and second gauges 4 and 5 throughout the movement, the straightness of the first and second surfaces of the guide rail is analyzed. Simultaneously, based on the relationship or trend of the reading differences or changes between the first and second gauges 4 and 5 at the same detection point, the perpendicularity between the two measured surfaces is analyzed.

[0041] The guide rail dial indicator fixture has a modular structure, making assembly and adjustment intuitive and convenient. The dial indicator method for this guide rail has clear steps, relatively reducing the technical experience requirements for operators and facilitating standardized operations.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A guide rail dial indicator fixture, characterized in that, include: The slider is slidably mounted on the guide rail to be tested; The first mounting plate has its first end mounted on the slider. The second mounting plate is disposed on the side of the second end of the first mounting plate; The first detection gauge is located at the second end of the first mounting plate, with the detection end facing the guide rail side; The second test gauge is located on the second mounting plate, with the test end facing the guide rail side.

2. The guide rail dial indicator fixture as described in claim 1, characterized in that, Also includes: A connecting plate is bolted between the first mounting plate and the slider.

3. The guide rail dial indicator fixture as described in claim 2, characterized in that, The first mounting plate is provided with a plurality of first mounting holes penetrating the plate body, and the side of the first mounting plate is provided with a plurality of blind holes, wherein the blind holes are provided with internal threads; the second mounting plate is provided with a plurality of second mounting holes penetrating the plate body. The first mounting plate is connected to the connecting plate by bolts passing through the first mounting hole; the second mounting plate is connected to the first mounting plate by bolts passing through the second mounting hole and the blind hole.

4. The guide rail dial indicator fixture as described in claim 1, characterized in that, Both the first and second test tables are dial gauges or percentage gauges.

5. The guide rail dial indicator fixture as described in claim 1, characterized in that, Also includes: Two positioning clamps are provided, with the first end bolted to the first mounting plate. The two positioning clamps are provided with a first limiting groove and a first positioning hole that are opposite to each other. The first limiting groove is used to clamp the first detection gauge, and the first positioning hole is used to pass through the positioning bolt.

6. The guide rail dial indicator fixture as described in claim 5, characterized in that, The axis of the first positioning hole is perpendicular to the length direction of the first detection gauge.

7. The guide rail marking fixture as described in claim 1, characterized in that, Also includes: Two positioning clamps are bolted to the second mounting plate. The two positioning clamps have opposing second limiting grooves and opposing second positioning holes. The second limiting grooves are used to clamp the second detection gauge, and the second positioning holes are used to pass through positioning bolts.

8. The guide rail dial indicator fixture as described in claim 7, characterized in that, The axis of the second positioning hole is perpendicular to the length direction of the second detection gauge.

9. A method for marking guide rails, characterized in that, Includes the following steps: S1. Install the second mounting plate on the first mounting plate, install the first mounting plate on the slider, assemble the slider on the guide rail to be tested, install the first test gauge on the first mounting plate, and install the second test gauge on the second mounting plate. S2. Adjust the positions of the first detection meter and the second detection meter so that the detection end of the first detection meter abuts against one surface of the guide rail and the detection end of the second detection meter abuts against the other surface of the guide rail. S3. Move the slider along the guide rail and simultaneously read the readings of the first and second detection gauges that follow the slider's movement to analyze the straightness and perpendicularity of the guide rail.

10. The guide rail dial indicator method as described in claim 9, characterized in that, The S1 also includes: The positioning clamp is installed on the first mounting plate, the positioning block is installed on the second mounting plate, the first measuring instrument is clamped and fixed in the first limiting groove, and the second measuring instrument is clamped and fixed in the second limiting groove.

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