Measuring device of boring cutter

Abstract

The utility model provides a measuring device of a boring cutter, and particularly relates to the field of precision measurement. The measuring device of the boring cutter comprises a support, a first base, a second base, a first measuring piece, a second measuring piece and a calibration piece. The support is arranged in the horizontal direction. The first base is arranged at one end of the support in a sliding mode, and the second base is arranged at the other end of the support in a sliding mode. The first measuring piece is fixedly arranged on the first base, and the second measuring piece is fixedly arranged on the second base; the calibration piece is used in cooperation with the first measuring piece and the second measuring piece. Wherein the first measuring piece and the second measuring piece are coaxially arranged, during measurement, the first base and the second base are fixed to the support, and the first measuring piece and the second measuring piece abut against the two ends of a boring cutter respectively. The measuring device is high in precision and meets the measuring requirement of the boring cutter of the large cylindrical workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of precision measurement, in particular to a measuring device for a boring tool. Background Art

[0002] In order to meet the use requirements of cylindrical workpieces, the inner hole of the cylindrical workpiece needs to be fine-machined, and the tolerance of the inner hole of the workpiece after machining is controlled within 0.1mm. In order to ensure the machining accuracy of the inner hole of the cylindrical workpiece, a floating boring tool is generally used to machine the inner hole of the workpiece. Before machining, the size of the floating boring tool needs to be measured. The commonly used measuring tool for floating boring tools is a micrometer, but the measurement size of the existing micrometer is generally less than 3000mm. Some floating boring tools used for machining large cylindrical workpieces (diameter size ≥3000mm) are longer than 3000mm, and the existing micrometer cannot meet the measurement requirements. Utility Model Content

[0003] In view of the above shortcomings of the prior art, the utility model provides a boring tool measuring device to solve the problem that the micrometer cannot meet the measurement requirements of the boring tool of a large cylindrical workpiece.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a measuring device for a boring tool, the measuring device comprising a bracket, a first base, a second base, a first measuring piece, a second measuring piece and a calibration piece. The bracket is arranged in a horizontal direction; the first base is slidably arranged at one end of the bracket, and the second base is slidably arranged at the other end of the bracket; the first measuring piece is fixedly arranged on the first base, and the second measuring piece is fixedly arranged on the second base; the calibration piece is used in conjunction with the first measuring piece and the second measuring piece. The first measuring piece and the second measuring piece are coaxially arranged. During measurement, the first base and the second base are fixed on the bracket, and the first measuring piece and the second measuring piece are respectively abutted against the two ends of the boring tool.

[0005] In an example of the present invention, a guide rail is provided on the bracket, and a slide groove matching the guide rail is provided on the first base and the second base, and the slide groove is slidably connected and installed on the guide rail.

[0006] In an example of the present invention, a first mounting bracket for mounting a first measuring piece is fixedly disposed on the first base, a first through hole is disposed on the first mounting bracket, and the first measuring piece is fixedly mounted through the first through hole.

[0007] In one example of the utility model, a second mounting bracket for mounting a second measuring piece is fixedly provided on the second base, a second through hole is provided on the second mounting bracket, the second through hole is coaxially arranged with the first through hole, and the second measuring piece is fixedly installed through the second through hole.

[0008] In an example of the present invention, a first protrusion is provided on the first base, and the first protrusion is provided on a side of the first base close to the second base; a second protrusion is provided on the second base, and the second protrusion is provided on a side of the second base close to the first base.

[0009] In an example of the present invention, grooves are provided on both the first protrusion and the second protrusion, the groove of the first protrusion is equal to the groove of the second protrusion in height, and the two ends of the boring tool are respectively placed in the groove of the first protrusion and the groove of the second protrusion.

[0010] In an example of the present invention, the first measuring piece is transitionally fitted with the first through hole, and the second measuring piece is transitionally fitted with the second through hole, the clearance of the transitional fit is ≤0.033 mm, and the interference of the transitional fit is ≤0.008 mm.

[0011] In an example of the present invention, a ruler is disposed on one side of the guide rail.

[0012] In an example of the present invention, the measuring device of the boring tool further includes a cushion block, and the cushion block is arranged between the boring tool and the guide rail to support the boring tool.

[0013] In an example of the present invention, the calibration component is an inside micrometer.

[0014] The utility model provides a boring tool measuring device, which is provided with a first measuring piece and a second measuring piece. Before measuring, the spacing between the first measuring piece and the second measuring piece is calibrated with a calibration piece, and then the first measuring piece and the second measuring piece are fixed, and the actual size of the boring tool is obtained by measuring the difference between the boring tool and the calibration piece. The testing device has high measurement accuracy and meets the measurement requirements of boring tools for large cylindrical workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1It is a structural schematic diagram of a measuring device for a boring tool of the utility model in one embodiment;

[0017] Figure 2 It is a front view of the first base of the measuring device of the boring tool of the utility model in one embodiment;

[0018] Figure 3 It is a left side view of the first base of the measuring device for boring cutters of the utility model in one embodiment;

[0019] Figure 4 The figure is a top view of a first base of a measuring device for a boring tool of the utility model in one embodiment.

[0020] Component number description

[0021] 100, bracket; 110, guide rail; 111, ruler; 200, first base; 210, first mounting frame; 220, first protrusion; 221, groove; 300, second base; 310, second mounting frame; 320, second protrusion; 400, first measuring piece; 500, second measuring piece; 600, boring tool; 700, spacer block. DETAILED DESCRIPTION

[0022] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0023] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present utility model without substantially changing the technical content.

[0024] See also Figure 1 The utility model provides a measuring device for a boring tool 600, which includes a bracket 100, a first base 200, a second base 300, a first measuring piece 400, a second measuring piece 500 and a calibration piece.

[0025] The bracket 100 is arranged in the horizontal direction to support other components of the device. The present application does not limit the structure of the bracket 100, and it only needs to meet the surface flatness.

[0026] The first base 200 is slidably disposed at one end of the bracket 100, and the second base 300 is slidably disposed at the other end of the bracket 100. In the present application, there is no limitation on the sliding manner of the first base 200 and the second base 300 and the bracket 100. For example, a slider is disposed below the first base 200 and the second base 300, or the slider is slidably disposed through a lead screw assembly. In one embodiment, a guide rail 110 is disposed on the bracket 100, and a slide groove matching the guide rail 110 is disposed on the first base 200 and the second base 300, and the slide groove is slidably connected and installed on the guide rail 110.

[0027] The first measuring piece 400 is fixedly arranged on the first base 200, and the second measuring piece 500 is fixedly arranged on the second base 300. The first measuring piece 400 slides along the bracket 100 with the first base 200, and the second measuring piece 500 slides along the bracket 100 with the second base 300, thereby adjusting the spacing between the first measuring piece 400 and the second measuring piece 500 to meet the measurement requirements of boring tools 600 of different lengths. There is no restriction on the fixing method of the first measuring piece 400 and the first base 200 and the second measuring piece 500 and the second base 300, for example, they are fixed by a mounting frame or fasteners, so that the first measuring piece 400 slides along the bracket 100 with the first base 200, and the second measuring piece 500 slides along the bracket 100 with the second base 300.

[0028] The calibration piece is used in conjunction with the first measuring piece 400 and the second measuring piece 500 to calibrate the distance between the first measuring piece 400 and the second measuring piece 500. The calibration piece can be any structure that can calibrate the distance between the first measuring piece 400 and the second measuring piece 500. In one embodiment, the calibration piece uses an inside micrometer, which has a high measurement accuracy and can reduce the error during calibration. When the calibration piece is used for calibration, the first measuring piece 400 and the second measuring piece 500 are respectively abutted at both ends of the calibration piece.

[0029] The first measuring piece 400 and the second measuring piece 500 are coaxially arranged. During measurement, the first base 200 and the second base 300 are fixed on the bracket 100, and the first measuring piece 400 and the second measuring piece 500 are respectively abutted against the two ends of the boring tool 600. There is no restriction on the fixing method of the first measuring piece 400 and the second measuring piece 500 and the bracket 100. In one embodiment, the bottoms of the first measuring piece 400 and the second measuring piece 500 are both provided with mounting holes, and the guide rail 110 is provided with threaded holes, and bolts are passed through the mounting holes and threadedly connected with the threaded holes on the guide rail 110 to fix the first measuring piece 400 and the second measuring piece 500.

[0030] Before measuring the boring tool 600, the distance between the first measuring piece 400 and the second measuring piece 500 is calibrated using a calibration piece. The actual size of the boring tool 600 is calculated by measuring the difference between the boring tool 600 and the calibration piece. The test device has high measurement accuracy and meets the measurement requirements of the boring tool 600 for large cylindrical workpieces.

[0031] See also Figure 1 In one embodiment, a first mounting frame 210 for mounting a first measuring piece 400 is fixedly provided on the first base 200, a first through hole is provided on the first mounting frame 210, and the first measuring piece 400 is fixedly installed through the first through hole. A second mounting frame 310 for mounting a second measuring piece 500 is fixedly provided on the second base 300, a second through hole is provided on the second mounting frame 310, the second through hole is coaxially arranged with the first through hole, and the second measuring piece 500 is fixedly installed through the second through hole. Preferably, the first measuring piece 400 is transitionally fitted with the first through hole, and the second measuring piece 500 is transitionally fitted with the second through hole, and the transitionally fitted here can be a clearance fit or an interference fit. If the transitionally fitted is a clearance fit, the clearance of the transitionally fitted is ≤0.033 mm; if the transitionally fitted is an interference fit, the interference amount of the transitionally fitted is ≤0.008 mm. There is no limitation on the fixing method of the first base 200 and the first mounting frame 210 and the second base 300 and the second mounting frame 310, including but not limited to riveting or detachable connection with fasteners.

[0032] See also Figures 1 to 4 In one embodiment, a first protrusion 220 is provided on the first base 200, and the first protrusion 220 is provided on the side of the first base 200 close to the second base 300; a second protrusion 320 is provided on the second base 300, and the second protrusion 320 is provided on the side of the second base 300 close to the first base 200. Preferably, a groove 221 is provided on both the first protrusion 220 and the second protrusion 320, and the height of the groove of the first protrusion 220 is equal to that of the groove of the second protrusion 320, and the two ends of the boring tool 600 are respectively placed in the groove of the first protrusion 220 and the groove of the second protrusion 320. The shape of the groove 221 matches the shape of the boring tool 600 to prevent the boring tool 600 from shaking during the measurement process.

[0033] See also Figure 1In one embodiment, a scale 111 is provided on one side of the guide rail 110. Before testing, the boring tool 600 is roughly measured first, and then the first measuring piece 400 and the second measuring piece 500 are adjusted to a suitable position through the first base 200 and the second base 300 according to the scale on the scale 111 and then fixed. Preferably, since the boring tool 600 is long, the measuring device of the boring tool 600 also includes a cushion block 700, which is provided between the boring tool 600 and the guide rail 110 to support the boring tool 600 and prevent the boring tool 600 from shaking due to its own gravity, thereby affecting the measurement result.

[0034] See also Figure 1 The method of using the measuring device of the present application is as follows: roughly measure the boring tool 600 to obtain the approximate size of the boring tool 600. Then adjust the distance between the first measuring piece 400 and the second measuring piece 500 to a suitable size by sliding the first base 200 and the second base 300, and then place a calibration piece with a length similar to that of the boring tool 600 between the first measuring piece 400 and the second measuring piece 500, calibrate the distance between the first measuring piece 400 and the second measuring piece 500, set the length of the calibration piece as the measurement zero point, and then remove the calibration piece to measure the boring tool 600. Through the test, the difference between the calibration piece and the boring tool 600 is obtained, and the length of the boring tool 600 is further calculated.

[0035] The utility model provides a boring tool measuring device, which is provided with a first measuring piece and a second measuring piece. Before measurement, the spacing between the first measuring piece and the second measuring piece is calibrated with a calibration piece, and then the first measuring piece and the second measuring piece are fixed, and the actual size of the boring tool is obtained by measuring the difference between the boring tool and the calibration piece. The testing device has high measurement accuracy and meets the measurement requirements of boring tools for large cylindrical workpieces. Therefore, the utility model effectively overcomes some practical problems in the prior art and has high utilization value and use significance.

[0036] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A boring tool measuring device, characterized in that: include: A bracket is arranged in a horizontal direction; A first base, slidably disposed at one end of the bracket; A second base, slidably disposed at the other end of the bracket; A first measuring member, fixedly disposed on the first base; A second measuring member, fixedly disposed on the second base; a calibration piece, used in conjunction with the first measuring piece and the second measuring piece; The first measuring piece and the second measuring piece are coaxially arranged. During measurement, the first base and the second base are fixed on the bracket, and the first measuring piece and the second measuring piece are respectively abutted against two ends of the boring tool.

2. The boring tool measuring device according to claim 1, characterized in that: The bracket is provided with a guide rail, and the first base and the second base are provided with a slide groove matching the guide rail, and the slide groove is slidably connected and installed on the guide rail.

3. The boring tool measuring device according to claim 1, characterized in that: A first mounting frame for mounting a first measuring piece is fixedly disposed on the first base, a first through hole is disposed on the first mounting frame, and the first measuring piece is fixedly mounted through the first through hole.

4. The boring tool measuring device according to claim 3, characterized in that: A second mounting bracket for mounting a second measuring piece is fixedly disposed on the second base, a second through hole is disposed on the second mounting bracket, the second through hole is coaxially disposed with the first through hole, and the second measuring piece is fixedly mounted through the second through hole.

5. The boring tool measuring device according to claim 1, characterized in that: A first protrusion is arranged on the first base, and the first protrusion is arranged on a side of the first base close to the second base; a second protrusion is arranged on the second base, and the second protrusion is arranged on a side of the second base close to the first base.

6. The boring tool measuring device according to claim 5, characterized in that: The first protrusion and the second protrusion are both provided with grooves, the groove of the first protrusion is equal to the groove of the second protrusion in height, and the two ends of the boring tool are respectively placed in the groove of the first protrusion and the groove of the second protrusion.

7. The boring tool measuring device according to claim 4, characterized in that: The first measuring piece is transitionally fitted with the first through hole, and the second measuring piece is transitionally fitted with the second through hole. The clearance of the transitional fit is ≤0.033 mm, and the interference of the transitional fit is ≤0.008 mm.

8. The boring tool measuring device according to claim 2, characterized in that: A ruler is arranged on one side of the guide rail.

9. The boring tool measuring device according to claim 2, characterized in that: The measuring device of the boring tool further comprises a cushion block, which is arranged between the boring tool and the guide rail to support the boring tool.

10. The boring tool measuring device according to claim 1, characterized in that: The calibration piece is an inside micrometer.

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