RU96233U1 - DEVICE FOR MEASURING DIMENSIONS OF HEIGHTS AND DEPTH OF ELEMENTS OF SMALL PARTS - Google Patents

Abstract

 1. A device for measuring the dimensions of the heights and depths of the elements of small parts, comprising a base, a main stand fixed therein, a measuring table mounted on it with a base plane perpendicular to the axis of the main stand, a plane spring parallelogram with a tuning screw, a reading device fixed therein, characterized in that it is equipped with an additional stand fixed on the base, mounted on a measuring table with the ability to rearrange and fix plane-parallel base strips and strips with support rods, the end surfaces of which are located in one plane parallel to the base plane of the measuring table, with a probe fixed in a plane-spring parallelogram, which is mounted on an additional rack, and the measuring table is mounted on the main rack with the ability to move and fix. ! 2. The device according to claim 1, characterized in that it is equipped with a housing fixed to the base, a compression spring installed therein and a movable sleeve adjacent to it, mounted to move along an axis perpendicular to the reference plane of the measuring table, and interact through the probe and the tuning screw with reading device. ! 3. The device according to claim 1, characterized in that a mounting hole is made in the movable sleeve, the axis of which is perpendicular, and the plane of the supporting end is parallel to the base plane of the measuring table. ! 4. The device according to claim 1, characterized in that it is equipped with interchangeable mandrels fixed in the mounting hole of the movable sleeve: interchangeable mandrel with a reference plane parallel to the reference plane

Description

The technical solution relates to devices for measuring linear dimensions and can be used as a retoolable control and measuring device for monitoring a large range of parts with a wide range of nominal sizes.

Known manual measuring tools are ShG, ShGK, ShGTs depth gauges (GOST 162-90 Shtangenglubomer. Technical conditions), micrometer depth gauges (GOST 7470-78 Micrometer depth gauges. Technical conditions), 30EN caliper depth gauge, 30EN, 30ES digital caliper-depth gauges, type 27ES vertical digital caliper-altimeter, DIGIMAR type height measuring instruments, Mahr small measuring tables 820FC, 820FG (Mahr GmbH Esslingen catalog, Industrial Measuring Instruments, Manual Measuring Instruments), depth digital types ACEB, CPE, micrometer depth gauges type MP, AMP, depth gauges indicator types AC, ARC, APC, altimeters type TT, TM with a bar scale and nonius, altimeters type TTS with a circular scale and type TDES with a digital scale, AC23 racks of the company Borletti (catalog "Borietti strumenti di misura e controllo di precisione", 2000).

All of the above depth gauges and altimeters have similar designs, contain reading devices, a rod or stem, a base or a measuring bridge. The devices contain a base, a measuring table, a stand, a reading device, a mobile console through which a reading device is fixed on the rack.

The disadvantage of these devices is that they have narrow technological capabilities and are applicable for performing single measurements of a certain type of dimensions (heights or depths) and, in addition, they are difficult to use to control the size of small parts.

The closest in technical essence to the proposed device is a small measuring table 820FC by Mahr (catalog "Production measuring equipment. Hand-held measuring instruments", Mahr GmbH Esslingen. 08/01/98, p.5, 6), containing the base, table, rack , a mobile console fixed to the rack, a reading device fixed in the console. The console has a fine tuning device.

The disadvantage of this device is the narrow technological capabilities - it is applicable only for measuring heights.

The task to be solved is the expansion of technological capabilities.

The problem is solved due to the fact that the device for measuring the heights and depths of small parts, containing a base, a main stand fixed therein, a measuring table mounted on it with a base plane perpendicular to the axis of the main stand, a plane spring parallelogram with a tuning screw, a reading device fixed therein, equipped with an additional rack fixed on the base, mounted on the measuring table with the possibility of rearrangement and fixing, plane-parallel base strips and strips with support terzhnyami, the ends of which surfaces are located in one plane parallel to the base plane measuring table, probe, secured in flat-spring parallelogram, which is mounted on an additional rack and measuring table mounted on the main rack and the movable fastening.

The device is also equipped with a housing fixed to the base, a compression spring installed in it and a movable sleeve adjacent to it, mounted to move along an axis perpendicular to the reference plane of the measuring table, and interact through a probe and a tuning screw with a reading device.

In addition, a mounting hole is made in the movable sleeve, the axis of which is perpendicular, and the plane of the supporting end is parallel to the base plane of the measuring table.

The device is also equipped with interchangeable mandrels fixed in the mounting hole of the movable sleeve: interchangeable mandrel with a base plane parallel to the base plane of the measuring table; interchangeable mandrel with a measuring rod perpendicular to the base plane of the measuring table, equipped with interchangeable tips, fixed in the mandrel with the possibility of permutation along the axis and secured in it; interchangeable mandrel with rearranged racks, fixed with the possibility of rearrangement and fixing at a given distance from each other within the length of the grooves they have, with base surfaces lying in one plane parallel to the base plane of the measuring table.

In Fig.1 shows a General view of the device with a removable mandrel and a setting option for measuring heights, Fig.2 is a top view of the device (view A), Fig.3 is a section along a plane-spring parallelogram (BB), in Fig.1 .4 - configuration option for measuring the thickness of the shoulder, figure 5 - configuration with a removable mandrel with swappable racks to measure the thickness of the shoulder, remote from the end of the part; Fig.6 is a configuration option with a removable mandrel with swappable racks, for measuring the height of the grooves from the intermediate base; Fig.7 - settings with a removable mandrel with a measuring rod for measuring the depths of the holes; on Fig - configuration option with a removable mandrel with a measuring rod and interchangeable levels with support rods for measuring the depths of the holes from the inner base; figure 9 - the location of the rods in such measurements; figure 10 is a configuration option for measuring size from the outer end to the bottom of the hole located below the surface of the outer end of the part; figure 11 is a configuration option for measuring size from the outer end to the bottom of the hole located above the surface of the outer end of the part, in FIG. .12 - configuration option with interchangeable mandrel with a measuring rod with interchangeable tip for measuring size from the end of the part to the bottom surface of the groove, Fig. 13 - configuration option with interchangeable mandrel with a measuring rod with interchangeable tilt a receiver for measuring size from the end of the part to the upper surface of the groove,

The device (Fig. 1) contains a base 1 with a flat surface 2, a housing 3 and racks 4, 5, a movable sleeve 6, a lever 7 fixed therein, a compression spring 8 inserted into the sleeve 6, a measuring table rigidly fixed therein, perpendicular to surface 2 9, a clamp 10, a nut 11, plane-parallel base strips 12, 13, an emphasis 14 (FIG. 2), a spring-loaded parallelogram 15 fixed in a rack 5 (FIG. 3), a tuning screw 16, a holder 17, a probe 18, reading device 19, fixed in the fixed part of the parallelogram 15 interchangeable base mandrels 20 (figure 1), 21 (figure 4), 22 (figure 5), 23 (Fig. 7), a measuring rod 24 (Fig. 7), fixed to the measuring table 9 of the bar 25, 26 with supporting rods 27, 28 (Fig. 12). The base mandrel 22 contains base racks 29, 30, installed depending on the design of the controlled part. The device also comprises a stop 31 fixed in the movable sleeve 6 and a replaceable tip 32 (Fig. 3).

The controlled parts 33 are presented in the figures explaining the measurement of the corresponding parameters (Figs. 4-12).

The measuring table 9 is mounted in the rack 4 with the possibility of movement along its axis and securing so that the base plane of the measuring table 9 is perpendicular to the axis of the rack 4. The movable sleeve 6 is inserted into the housing 3 and rests on the compression spring 8. The measuring table 9 is attached to the rack 4 through clamp 10 with nut 11. Plane-parallel base strips 12, 13, emphasis 14 and strips 25, 26 with support rods 27, 28 are mounted with the possibility of movement along the base plane of the measuring table 9 and secured to it. The mandrel 20 is for measuring heights, the mandrel 21 is for measuring the thickness of the shoulders (Fig. 4), the mandrel 22 is for measuring the thickness of the shoulders, remote from the end (Fig. 5) and the heights of the intermediate base (Fig. 6), the mandrel is 23 s measuring rod 24 is designed to measure hole depths and sizes from the bottom of the hole to the outer end when the end of the groove is located above the bottom of the hole (Fig. 8), measuring dimensions from the bottom of the hole to the outer end when the end of the groove is located below the bottom of the hole (Fig. 9) . The strips 25, 26 with the support rods 27, 28 are designed to measure the depths of the holes with the base from the inner end (Fig) with the location of these rods according to Fig.13. The tip 32 is interchangeable and is designed to measure the size to the lower surface of the groove (figure 10) and to the upper surface of the groove (figure 11).

All basic mandrels 20-23 are installed with the possibility of change when changing the type of controlled parts and are fixed in the hole of the movable sleeve 6, the axis of which is perpendicular, and the supporting surface parallel to the base surface of the measuring table 9. The measurement information is transmitted from the stop 31 (Fig.3), rigidly mounted in the movable sleeve 6, through the probe 18, the holder 17 and the tuning screw 16, mounted in the movable part of the parallelogram 15, on the reading device 19.

The device for measuring a specific size is configured according to the block of end measures, the size of which is equal to the largest or smallest limit of the measured size. In all cases, when setting up and measuring, the protrusion on the fixed part of the parallelogram 15 should be close to the middle of the groove of its moving part.

Height measurement is as follows. Depending on the dimensions of the controlled part, the size and type of the measured size, the base mandrel 20 or 21 or 22 is installed in the movable sleeve 6, the base mandrel 20 or 21 or 22 is installed in the movable sleeve 6, respectively, the strips 12, 13 are moved and fixed on the measuring table 9 (figure 1) and racks 29, 30 in the mandrel 22 (when measuring size x, Fig.6). A block of end measures with a size equal to the smaller limit of the measured size is placed on the base plane of the mandrel or racks. After loosening the nut 11, set the measuring table 9 so that the upper plane of the block of end measures protrudes slightly above the upper plane of the base plates (approximately 0.5 mm), and tighten the nut 11.

An additional end measure press the end measure block all the way into the base strips 12, 13. In this position, set the zero and the tolerance field on the reading device 19. The controlled part 33 is placed on the base plane of the corresponding base mandrel 20, 21 or racks 29, 30 of the base the mandrel 22 between the base strips 12, 13 and is sent until it stops against the end of the part 33 into the base strips 12, 13. In this position, read the readings of the reading device. The emphasis 14 is installed if necessary.

The thickness of the shoulders is measured as follows. Depending on the location of the collar in the controlled part 33, a base mandrel 21 or 22 is installed in the movable sleeve 6 (figure 4), respectively, the strips 12, 13 and racks 29, 30 are moved and fixed, while the strips 12, 13 are fixed with the base planes down ( figure 5). Loosen the nut 11, then move the measuring table 9 so that the gap between the respective working planes of the strips 12, 13 and the mandrel 21 or the working planes of the strips 12, 13 and racks 29, 30 is slightly less than the smallest size of the shoulder (about 0.5 mm ), after which the nut 11 is tightened. Using the lever 7 (Fig. 1), lower the movable sleeve 6 and place an end measure or a block of end measures between the respective working planes with a size equal to the smaller limit of the measured size. Then release the movable sleeve 6, which under the action of the spring 8 clamps the block of end measures set to zero the reading device 19 and the border tolerance. Click on the lever 7, the part 33 with a measured shoulder is placed between the corresponding surfaces of the base strips 12, 13 of the mandrel 21 or the racks 29, 30 of the mandrel 22, then the lever 7 is released, and then the size x measurement result is read from the reading device 19.

The measurement of the depth of the hole is as follows. A mandrel 23 with a measuring rod 24 is installed in the movable sleeve 6. The base strips 12, 13 are set so that the measuring rod 24 (Fig. 7) or as shown in Fig. 8 freely passes between them. Set the measuring table 9 in the lowest position (Fig. 7) or so that between the mandrel 23 and the strips 12, 13 fit the corresponding part of the measured part 33 (Fig. 8). The measuring rod 23 is extended and fixed so that it protrudes slightly above the bars 12, 13 (approximately 0.5 mm) above the largest limit of the measured size (Fig. 9) or is installed below the base planes of the bars 12, 13 at a distance slightly less (approximately 0.5 mm) of the smallest limit of the measured size (Fig. 8). On the working plane of the strips 12, 13, end measure blocks with a size equal to a larger limit of the measured size are placed (Fig. 9), or an end measure block with a size equal to a smaller limit of the measured size is installed on the working end of the measuring rod 24 (Fig. 8). An additional measure is pressed on the working end of the measuring rod 23 or on the block of end measures until they stop in the blocks of end measures or strips 12, 13. In this position, the reading device 19 is set to zero and the border of the tolerance field. Detail 33 put the measured hole on the measuring rod 23 until it touches its working end, then press on the detail 33 until it stops in the straps 12, 13 and read the readings from the reading device 19, the result of measuring the size x.

The size measurement of the location of the inner groove is as follows. A measuring rod is installed in the mandrel 23. Dimensions of the location of the inner groove are as follows. A measuring rod 24 with a replaceable tip 32 is installed in the mandrel 23, when measuring the size to the lower end of the groove, the mandrel 23 is extended and fixed so that the distance between the lower surface of the tip 32 (Fig. 10) and the base plane of the strips 12, 13 is slightly larger than the upper limit measured size (0.2-0.5 mm). Two blocks of end measures with the same size equal to the largest limit of the measured size are installed on the base plane of the strips 12, 13 and placed under the tip 32 (Fig. 10). Using the lever 7, lower the measuring rod 24 to the stop in the block of end measures. In this position, set the reading device 19 to zero and set the limit of the tolerance field. The measured part 33 is put on the measuring rod 24 and start with a groove under the tip 32. Using the lever 7 lower the measuring rod 24 until the stop of its tip 32 in the end of the groove. In this position, readings from the reading device 19 read the result of measuring the size x.

When measuring the size to the upper end of the groove (Fig. 11), the measuring rod 24 is extended and fixed so that the distance from the upper end of the tip 32 to the base plane of the strips 12, 13 is slightly larger than the largest limit of the measured size (0.2-0.5 mm). Two blocks of end measures with the same size equal to the largest limit of the measured size are placed on the base plane of the strips 12, 13. An additional measure is pressed on the tip 32 of the measuring rod 24 along its axis to the stop of the additional measure in the block of end measures. In this position, the reading device 19 is set to zero and adjusted to the border of the tolerance field. Click on the lever 7, the measured part 33 is put on the measuring rod 24 and a groove is placed on its tip 32. Press on the part 33 along its axis against the stop in the base plane of the strips 12, 13. In this position, read the readings from the reading device 19 the size measurement result x

The depth measurement of the hole with the base from the inner end is as follows. In the movable sleeve 6 set the mandrel 23 with the measuring rod 24 (Fig). The measuring table 9 is set to the lowest possible position, then strips 25, 26 with supporting rods 27, 28 are installed on its base plane at a certain distance from each other, depending on the diameter of the base end of the controlled part 33 (Fig. 13). The measuring rod 24 is extended and secured so that it protrudes above the support rods more than the largest limit of the measured size (approximately 0.5 mm). Blocks of end measures with a size equal to the sum of the length of the support rod 27, 28 and the largest limit of the measured size are placed on the upper plane of the strips 25, 26. An additional measure is pressed on the working end of the measuring rod 24 until it stops an additional measure in the block of end measures. In this position, set the reading device 19 to zero and the border of the tolerance field. The controlled part 33 is worn with a measuring hole on the measuring rod 24 until the end of the part 33 is in contact with the end of the measuring rod 24, then they are pressed against the base end of the part 33 into the support rods 27, 28. (To reduce the pressing force on the part 33 when measuring depths and heights, simultaneously with the pressure on the part 33, lower the movable sleeve 6 using the lever 7.) Then read the readings from the reading device 19, the result of measuring the size x.

Thus, the proposed device has wider technological capabilities than analogues, and allows you to control a wide range of linear dimensions of various types of parts. In addition, the rather high productivity of the device, the short changeover time to another part and a different size make it possible to measure different sizes of any lots of parts of a wide range on one device and evaluate them according to tolerance limits, replacing the control with rigid calibers.

Claims (4)

1. A device for measuring the dimensions of the heights and depths of the elements of small parts, comprising a base, a main stand fixed therein, a measuring table mounted on it with a base plane perpendicular to the axis of the main stand, a plane spring parallelogram with a tuning screw, a reading device fixed therein, characterized in that it is equipped with an additional stand fixed on the base, mounted on a measuring table with the ability to rearrange and fix plane-parallel base strips and strips with support rods, the end surfaces of which are located in one plane parallel to the base plane of the measuring table, with a probe fixed in a plane-spring parallelogram, which is mounted on an additional rack, and the measuring table is mounted on the main rack with the ability to move and fix. 2. The device according to claim 1, characterized in that it is equipped with a housing fixed to the base, a compression spring installed therein and a movable sleeve adjacent to it, mounted to move along an axis perpendicular to the reference plane of the measuring table, and interact through the probe and the tuning screw with reading device. 3. The device according to claim 1, characterized in that a mounting hole is made in the movable sleeve, the axis of which is perpendicular, and the plane of the supporting end is parallel to the base plane of the measuring table. 4. The device according to claim 1, characterized in that it is equipped with interchangeable mandrels fixed in the mounting hole of the movable sleeve: interchangeable mandrel with a base plane parallel to the base plane of the measuring table; interchangeable mandrel with a measuring rod perpendicular to the base plane of the measuring table, equipped with interchangeable tips, fixed in the mandrel with the possibility of permutation along the axis and secured to it, interchangeable mandrel with interchangeable racks, fixed with the possibility of interchanging and securing at a given distance from each other within the length their grooves, with base surfaces lying in one plane parallel to the base plane of the measuring table.