Tool and method for measuring straightness of machine tool guide rail

Abstract

The invention discloses a tool and method for machine tool guide rail straightness measurement, and belongs to the technical field of machinery. According to the structure of the left tool, a base is connected with a sliding seat in a welded mode, a support is connected with the sliding seat through a first M8 hexagon socket set screw, a sliding block is connected with the support through an M10 bolt and an M10 nut, the sliding seat is provided with a sliding groove, the sliding block is connected with the sliding groove of the sliding seat through an M12 hexagon socket set screw, and a sleeve and a nut sleeve are connected with the M12 bolt. The other end of the M12 bolt is fixedly connected with the sliding block through the M12 nut, the lower portion of the base is connected with the machine body through the second M8 inner hexagonal set screw, and the steel wire is connected with the sleeve and the balancing weight. The straightness of the B-direction guide rail of the ram is measured, the measurement result is more visual, the position ranges of the high point and the low point of the guide rail surface can be measured, and scraping and trimming of the high point and the low point are facilitated.

Description

Technical Field

[0001] The invention belongs to the field of mechanical technology and relates to a tool and method for measuring the straightness of a machine tool guide rail. Background Art

[0002] There is no standard measuring tool to measure the straightness of the ram B pair guide rail. The existing technology uses a meter to measure the straightness, which is greatly affected by the straightness of the meter seat adsorption position, and the measured value cannot fully reflect the straightness of the measured B pair guide rail. If a machine tool is used for measurement, it is also greatly affected by the accuracy of the machine tool itself, and the measured values ​​cannot reflect the straightness of the measured B pair guide rail. The ram B pair guide rail is generally 20 meters long (up to 40 meters long), and the length of the special detection measuring tool cannot meet the use requirements of the ram B pair guide rail straightness measurement. When using the laser measurement method, the accuracy of the laser tracker itself cannot meet the accuracy of the ram B pair guide rail detection itself. The straightness accuracy of the ram B pair guide rail exceeds the accuracy of the laser tracker itself. Summary of the invention

[0003] The present invention aims at solving the problems in the prior art and provides a tool and method for measuring the straightness of a machine tool guide rail.

[0004] A tool for measuring the straightness of a machine tool guide rail comprises a left tool and a right tool. The structure of the left tool is as follows: a base is welded to a slide seat, a support is connected to the slide seat by a first M8 inner hexagon set screw, a slider is connected to the support by an M10 bolt and an M10 nut, the slide seat has a slide groove, the slider is connected to the slide groove of the slide seat by an M12 inner hexagon set screw, a sleeve and a nut sleeve are connected to the M12 bolt, the other end of the M12 bolt is fixedly connected to the slider by an M12 nut, the lower part of the base is connected to a machine body by a second M8 inner hexagon set screw, and a steel wire is connected to the sleeve and a counterweight.

[0005] The structure of the right tooling is the same as that of the left tooling. The right tooling and the left tooling are respectively connected to the fuselage, and the steel wire is respectively connected to the sleeve of the left tooling and the sleeve of the left tooling.

[0006] A method for measuring the straightness of a machine tool guide rail comprises the following steps:

[0007] The base and slide are welded together, the support is installed on the slide through the first M8 hexagon socket set screw, the slide is installed on the slide through the M10 bolt, the sleeve and the nut sleeve are installed on the slide through the M12 bolt. When measuring, the up and down position of the slide is adjusted by rotating the M10 bolt, the M8 bolt is tightened by the M10 nut, the position of the slide is fixed by tightening the M12 hexagon socket set screw, the M12 bolt is tightened by the M12 nut, and the position of the sleeve is adjusted by adjusting the nut sleeve. The sleeve can be fixed by tightening the nut sleeve. The wire rope is connected to the counterweight block and spanned on both ends of the bed. The distance between the wire rope and the guide surface is measured, and the straightness of the guide surface is judged by the measured values. If the measured values ​​are consistent, the straightness of the guide surface is qualified, otherwise it is unqualified.

[0008] The advantages of the present invention are: through the conversion connection mode of the present invention, the straightness of the ram B to the guide rail is measured. The measurement result is more intuitive, and the position range of the high and low points of the guide rail surface can be measured, which is convenient for scraping and trimming the high and low points. The present invention has a simple structure, low cost, and is easy to operate. The ram B to the guide rail is generally 20 meters long (up to 40 meters long), and the length of the special detection gauge cannot meet the use requirements of the guide rail. The present invention can change the measured length by changing the length of the steel wire, and can measure the straightness of guide rails of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. As shown in the figure:

[0010] Figure 1 It is a structural diagram of the present invention.

[0011] Figure 2 It is a structural side view of the present invention.

[0012] Figure 3 This is a diagram of the use state of the present invention.

[0013] Figure 4 This is the second diagram of the present invention in use. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] Example 1: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a tool and method for measuring the straightness of a machine tool guide rail.

[0016] A tool for measuring the straightness of a machine tool guide rail comprises a left tool and a right tool.

[0017] The structure of the left tooling: the base 1 is welded to the slide 2, the support 4 is connected to the slide 2 through the first M8 hexagon socket set screw 5, the slider 3 is connected to the support 4 through the M10 bolt 8 and the M10 nut 7, the slide 2 has a slide groove 18, the slider 3 is connected to the slide groove 18 of the slide 2 through the M12 hexagon socket set screw 6, the sleeve 11 and the nut sleeve 12 are connected to the M12 bolt 10, the other end of the M12 bolt 10 is fixedly connected to the slider 3 through the M12 nut 9, the lower part of the base 1 is connected to the fuselage 17 through the second M8 hexagon socket set screw 14, and the steel wire 13 is connected to the sleeve 11 and the counterweight 15.

[0018] The structure of the right tool is the same as that of the left tool. The right tool and the left tool are connected to the fuselage 17 respectively, and the steel wire 13 is connected to the sleeve 11 of the left tool and the sleeve of the left tool respectively.

[0019] A method for measuring the straightness of a machine tool guide rail comprises the following steps:

[0020] The base 1 and the slide 2 are welded together, the support 4 is installed on the slide 2 through the first M8 hexagon socket set screw 5, the slider 3 is installed on the slide 2 through the M10 bolt 8, and the sleeve 11 and the nut sleeve 12 are installed on the slider 3 through the M12 bolt 10.

[0021] During measurement, the upper and lower positions of the slider 3 can be adjusted by rotating the M10 bolt 8, and the position of the slider 3 can be fixed by tightening the M8 bolt through the M10 nut 7 and tightening the M12 hexagon socket set screw 6.

[0022] The M12 bolt 10 can be tightened by the M12 nut 9, the position of the sleeve 11 can be adjusted by adjusting the nut sleeve 12, and the sleeve 11 can be fixed by tightening the nut sleeve 12.

[0023] After the tooling is installed, two of these tools are needed. They are installed at both ends of the guide rail through the second M8 hexagon socket set screws 14. The wire rope 13 is connected to the counterweight block 15, spanning the sleeves 11 at both ends of the bed. The distance between the wire rope and the guide rail surface is measured, and the straightness of the guide rail surface is judged by the measured values. If the measured values ​​are consistent, the straightness of the guide rail surface is qualified, otherwise it is unqualified.

[0024] Function: There is no standard measuring tool to measure the straightness of the guide rail of ram B. It is necessary to use this tooling conversion benchmark to measure the distance between the guide rail surface and the wire rope to determine the straightness of the guide rail of ram B.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool for measuring the straightness of a machine tool guide rail, characterized in that: It contains left tooling and right tooling. The structure of the left tooling is as follows: the base is welded to the slide, the support is connected to the slide through the first M8 hexagon socket set screw, the slider is connected to the support through the M10 bolt and M10 nut, the slide has a slide groove, the slider is connected to the slide groove of the slide through the M12 hexagon socket set screw, the sleeve and the nut sleeve are connected to the M12 bolt, the other end of the M12 bolt is fixedly connected to the slider through the M12 nut, the lower part of the base is connected to the fuselage through the second M8 hexagon socket set screw, and the steel wire is connected to the sleeve and the counterweight.

2. A tool for measuring the straightness of a machine tool guide rail according to claim 1, characterized in that: The structure of the right tooling is the same as that of the left tooling.

3. The tool for measuring the straightness of a machine tool guide rail according to claim 1, characterized in that: The right tooling and the left tooling are respectively connected to the fuselage, and the steel wire is respectively connected to the sleeve of the left tooling and the sleeve of the left tooling.

4. A method for measuring the straightness of a machine tool guide rail, characterized in that: Contains the following steps: The base and the slide are welded together, the support is installed on the slide by the first M8 hexagon socket set screw, the slider is installed on the slide by the M10 bolt, and the sleeve and nut sleeve are installed on the slider by the M12 bolt. During measurement, adjust the up and down position of the slider by rotating the M10 bolt, tighten the M8 bolt with the M10 nut, and tighten the M12 hexagon socket set screw to fix the position of the slider. Tighten the M12 bolt with the M12 nut, adjust the position of the sleeve by adjusting the nut sleeve, and fix the sleeve by tightening the nut sleeve. The wire rope is connected to the counterweight block and spanned across the two ends of the bed. The distance between the wire rope and the guide rail surface is measured, and the straightness of the guide rail surface is judged by the measured value. If the measured values ​​are consistent, the straightness of the guide rail surface is qualified, otherwise it is unqualified.

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