CN218534220U - Multi-gear bearing hole straightness measuring tool - Google Patents

Abstract

The utility model relates to a multi-gear bearing hole straightness measuring tool, which comprises a magnetic base, a base bracket, an extension bar and a height adjusting bracket; the magnetic base is a magnetic high-precision cylinder and is used for adsorbing a contact bearing hole during straightness measurement; the base support is fixedly connected with the magnetic base along a first direction and fixedly connected with the lengthening rod along a second direction, and the first direction is vertical to the second direction; the base support is provided with an installation limiting surface opposite to the first direction, and the installation limiting surface is used for contacting the end surface of the bearing hole and fixing the position of the base support in the horizontal direction during straightness measurement; the height adjusting bracket is used for fixedly mounting a laser receiver during straightness measurement; the height adjusting support can freely slide on the extension bar and is used for adjusting the height of the laser receiver to a proper position and fixedly connecting the height adjusting support and the extension bar during straightness measurement. The laser receiver has the advantages of being convenient to install and disassemble and ensuring that the laser receiver cannot move during measurement.

Description

Multi-gear bearing hole straightness measuring tool

[ technical field ] A method for producing a semiconductor device

The utility model relates to an auxiliary measuring device technical field, concretely relates to frock is measured to many grades of dead eye straightness accuracy.

[ background ] A method for producing a semiconductor device

With the continuous improvement of the design requirements and the manufacturing technology of the diesel engine parts, the measurement efficiency and the accuracy of the geometric dimensions of the key parts such as the frame and the like need to be further improved so as to meet the continuously improved product design and production process of the manufacturing industry.

The frame is a main body mounting framework of the diesel engine, bears the weight of all parts, is one of the most key parts of the diesel engine, and comprises a cavity containing other components, a bearing hole, a mounting plate, a rib plate and the like, the geometric structure is very complex, and whether the processing precision of the frame meets the design requirement or not is a key factor for safe operation of the diesel engine. Particularly, the processing quality of a main bearing hole of a medium-high speed diesel engine determines the reliability, noise, vibration and power performance of the diesel engine; for example, the diameter of the main shaft hole of a high-speed diesel engine of a certain model is relatively small, the span of an 11-gear bearing hole is large, the requirement on geometric dimension precision is high, and the machining and manufacturing process of a frame is very strict. Therefore, if the straightness parameters of the main bearing hole do not meet the process requirements of measuring equipment and auxiliary tools, the accuracy and the measuring efficiency of the measuring result are difficult to ensure.

The laser centering instrument is generally applied to shaft centering and hole centering of two sections of equipment of a coupler, and can complete functions such as shaft centering, hole centering, flatness measurement, straightness measurement and the like; the deviation of displacement and angle is measured respectively by adopting the principle of double laser beams, and the scanning measurement is carried out automatically; comprises a laser transmitter, a detection target (laser receiver) and a display host.

The utility model discloses to the technical characterstic that diesel engine frame main bearing hole straightness accuracy of measurement required height, measured many grades of bearing hole straightness accuracy and carried out technological improvement.

[ Utility model ] content

The utility model aims at providing a be used for many grades of dead eye straightness accuracy to measure, installation and dismantlement convenience, the frock that laser receiver can not remove when ensureing to measure.

In order to achieve the purpose, the technical scheme adopted by the utility model is a multi-gear bearing hole straightness measuring tool, which comprises a magnetic base, a base bracket, an extension bar and a height adjusting bracket; the magnetic base is a magnetic high-precision cylinder and is used for adsorbing and contacting a bearing hole during straightness measurement; the base support is fixedly connected with the magnetic base along a first direction and fixedly connected with the lengthening rod along a second direction, and the first direction is vertical to the second direction; the base support is provided with an installation limiting surface opposite to the first direction, and the installation limiting surface is used for contacting the end surface of the bearing hole and fixing the position of the base support in the horizontal direction during straightness measurement; the height adjusting bracket is used for fixedly mounting a laser receiver during straightness measurement; the height adjusting support can freely slide on the extension bar and is used for adjusting the height of the laser receiver to a proper position and fixedly connecting the height adjusting support and the extension bar during straightness measurement.

Preferably, the multi-gear bearing hole straightness measuring tool further comprises a connecting bolt; the magnetic base and the base support are fixedly connected into a whole through the connecting bolt.

Preferably, the magnetic base comprises a first side magnetic base and a second side magnetic base; the first side magnetic base or the second side magnetic base is composed of two cylinders with the same diameter and a magnetic sleeve, and the magnetic sleeve is located between the two cylinders.

Preferably, the extension bar comprises cylindrical extension bars on two sides; the two side cylindrical lengthening rods are independently used as one cylindrical lengthening rod, or the two cylindrical lengthening rods are combined for use; when the combined type screw bolt is used, the two cylindrical extension bars are fixedly connected in a screw bolt-to-screw hole mode.

Preferably, the height adjusting bracket comprises a bracket main body, two fastening screws and two locking screws; the two fastening screws are used for mounting the laser receiver on the bracket main body; the two locking screws are used for locking the bracket main body to the cylindrical extension bars on the two sides.

Preferably, in the tool for measuring the straightness of the multi-gear bearing hole, the multi-gear bearing hole is a main bearing hole of a frame of a diesel engine, and the diameter of the multi-gear bearing hole is 240mm; the diameter of the cylinder of the first side magnetic base and the cylinder of the second side magnetic base are phi 18 +/-0.002 mm, the cylindricity is less than or equal to 0.002mm, the thickness is 7mm, the roughness is Ra0.1 mu m, and the cylindricity of the two cylinders on the same side is less than or equal to 0.002mm;

preferably, one 30mm or 50mm cylindrical extension rod is used alone or two 30mm or 50mm cylindrical extension rods are used in combination; when the combined type screw driver is used in a combined mode, two 30mm or 50mm cylindrical extension bars are fixedly connected in a mode of M6 studs to M6 screw holes.

Preferably, according to the multi-gear bearing hole straightness measuring tool, 2 phi 5mm through holes are arranged in the height adjusting support in the horizontal direction according to the position of a threaded hole of a laser receiver, and the laser receiver is installed on the height adjusting support through fastening screws; 2 through holes with the diameter of 10mm are arranged in the vertical direction of the height adjusting support, and when the height of the laser receiver is adjusted to a proper position, the height adjusting support is fixed on the lengthening rod by screwing the locking screw.

The utility model relates to a frock is measured to many grades of dead eye straightness accuracy compares beneficial effect with prior art and is:

1. the tool has small overall dimension, the total height of the tool and the laser receiver is 75mm, the tool is suitable for measuring the small aperture of the laser centering instrument, and the measurement problems of the straightness of the main bearing hole of the high-speed machine and the position of the bearing hole of each gear are solved;

2. the contact surface of the base cylinder has strong magnetism, and the base cylinder is installed in the bearing to be stable and reliable, so that the measurement error caused by factors such as field vibration and the like is reduced;

3. the lengthening rod can be in 3 combination forms, the height adjusting range of the laser receiver can be from 10mm to 60mm, the laser centering device can be applied to different aperture sizes, the application range of the laser centering device is expanded, and the laser centering device is suitable for detecting the straightness of multi-gear bearing holes of more machine types;

4. the tool can adjust the angle in the bearing hole, the measuring points can be evenly distributed in 360 degrees, the measuring precision of the straightness and the position deviation of the bearing hole is improved, and the tool can also be used for detecting other parameters such as coaxiality and parallelism;

5. the angle of adjustment only need promote the frock can, need not to take out the frock and place again, convenient operation is swift, has effectively improved detection efficiency.

[ description of the drawings ]

Fig. 1 is a three-dimensional schematic view of a tool for measuring the straightness of a main bearing hole of a diesel engine frame.

FIG. 2 is a schematic view of a magnetic base of a tool for measuring the straightness of a main bearing hole of a diesel engine frame.

FIG. 3 is a schematic view of a tool base support for measuring the straightness of a main bearing hole of a diesel engine frame.

FIG. 4 is a schematic view of a height adjusting bracket of a straightness measuring tool for a main bearing hole of a diesel engine frame.

Fig. 5 is a schematic diagram of the position of a main bearing hole of a diesel engine frame.

FIG. 6 is a schematic view of the installation of a laser transmitter for measuring the straightness of a main bearing hole of a diesel engine frame.

FIG. 7 is a schematic view of laser emission for measuring the straightness of a main bearing hole of a diesel engine frame.

FIG. 8 is a schematic view of the installation of a laser receiver for measuring the straightness of a main bearing hole of a diesel engine frame.

Reference numerals and components referred to in the drawings are as follows: 1. magnetic base, 11, cylinder, 12, magnetism sleeve, 2, base support, 21, installation spacing face, 3, connecting bolt, 4, extension bar, 5, altitude mixture control support, 51, fastening screw, 6, laser receiver, 7, laser emitter, 8, laser line, 9, diesel engine frame, 10, main bearing hole.

[ detailed description ] embodiments

The invention will be further described with reference to the following examples and with reference to the accompanying drawings.

Example 1

This embodiment realizes a diesel engine frame main bearing hole straightness accuracy measurement frock.

The embodiment provides a tool for measuring the straightness of a main bearing hole of a diesel engine frame, which is used for positioning and installing a laser receiver of measuring equipment.

The tool for measuring the straightness of the main bearing hole of the diesel engine rack is stable in installation, ensures that a laser receiving device cannot move during measurement, is convenient to install and easy to install and disassemble, solves the problem of detecting the straightness parameters of the main bearing hole of the high-speed diesel engine rack of a certain model, and achieves the effects of facilitating operation and improving the accuracy and the measuring efficiency of a measuring result.

Fig. 1 is a three-dimensional schematic view of a tool for measuring the straightness of a main bearing hole of a diesel engine frame. As shown in fig. 1, the tool for measuring the straightness of the main bearing hole of the diesel engine frame in the embodiment is used as an auxiliary device of a laser centering instrument measuring device, is installed in the main bearing hole of the diesel engine frame, has a magnetic high-precision cylinder as a tool contact surface, can be adsorbed in any angle in the bearing hole, is convenient and quick to adjust the angle, and is used for installing and positioning a laser receiver; the method comprises the following steps: magnetic base, base support, extension bar, altitude mixture control support, connecting bolt constitute.

FIG. 2 is a schematic view of a magnetic base of a tool for measuring the straightness of a main bearing hole of a diesel engine frame. As shown in fig. 2, in the tool for measuring the straightness of the main bearing hole of the diesel engine frame of the embodiment, the magnetic base is composed of 4 cylinders with the same diameter and 2 magnetic sleeves. The diameter of each of the 4 cylinders is (phi 18 +/-0.002) mm, the cylindricity is less than or equal to 0.002mm, the thickness is 7mm, the roughness is Ra0.1 mu m, the coaxiality of the two cylinders on the same side is less than or equal to 0.002mm, and the positioning contact surfaces are ensured to be at the same height; the magnetic sleeve is positioned between the 2 cylinders, so that the mounting contact surface has magnetism. The magnetic base and the base support are installed into a whole through the connecting bolt, the whole tool is adsorbed on the inner wall of the bearing hole, the measuring tool is pushed in the cylindrical surface of the inner hole of the part during angle adjustment, and the measuring tool is quickly adjusted to a required measuring position according to the inclination angles of the horizontal direction and the vertical direction on the display panel of the laser centering measuring instrument. The tool is stable in installation, convenient to install, and fast in disassembly and angle adjustment, and the effects of facilitating operation and improving the measurement efficiency and the installation stability are achieved.

FIG. 3 is a schematic view of a tool base support for measuring the straightness of a main bearing hole of a diesel engine frame. As shown in fig. 3, in the tool for measuring the straightness of the main bearing hole of the diesel engine frame of the present embodiment, the base bracket is a main structure of the whole tool, and connects the magnetic base and the extension bar into a whole. The mounting limiting surface is in contact with the end face of the bearing hole and used for fixing the position of the tool in the horizontal direction, the planeness of the limiting surface is less than or equal to 0.01mm, and the verticality of the limiting surface and the magnetic base is less than or equal to 0.02mm.

The utility model provides a diesel engine frame main bearing hole straightness accuracy measures frock, the extension bar for connect altitude mixture control support, including 2 length for 30mm and 2 length for 50 mm's cylinder extension bar, extension bar one end is M6's double-screw bolt, and the other end is M6's screw, and the external diameter is phi 10mm, but 2 independent use 30mm or two 50 mm's extension bars, also can use 30mm and 50mm extension bar combination, the usable altitude mixture control scope of laser receiver after the combined use is 10mm-60mm.

FIG. 4 is a schematic view of a height adjusting bracket of a straightness measuring tool for a main bearing hole of a diesel engine frame. As shown in fig. 4, in the tool for measuring the straightness of the main bearing hole of the diesel engine frame of the embodiment, the height adjusting bracket is composed of a bracket main body and a fastening screw. According to the position of a threaded hole of the laser receiver, 2 phi 5mm through holes at corresponding positions are designed in the horizontal direction of the height adjusting bracket, and the laser receiver is installed on the height adjusting bracket by fastening screws; 2 phi 10 mm's of vertical direction through-hole and extension bar stand cooperate, can freely slide on connecting the extension bar, when adjusting laser receiver height to suitable position, the locking screw of screwing, the position of fixed altitude mixture control support on the extension bar to fixed laser receiver is in the position on the extension bar.

In the tool for measuring the straightness of the main bearing hole of the diesel engine frame, 2M 5 hexagon socket head cap screws of the connecting bolt are used for connecting the magnetic base and the base support; 2M 6 hexagon socket head cap screws are used to connect the height adjustment bracket and the laser receiver (i.e., the fastening screws).

This embodiment diesel engine frame main bearing hole straightness accuracy measures frock:

1. the tool has small overall dimension, the total height of the tool and the laser receiver is 75mm, the tool is suitable for measuring the small aperture of the laser centering instrument, and the measurement problems of the straightness of the main bearing hole of the high-speed machine and the position of the bearing hole of each gear are solved.

2. The cylindrical contact surface of the base has strong magnetism, and the bearing is installed in the bearing to be stable and reliable, so that the measurement error caused by factors such as field vibration and the like is reduced.

3. The extension bar can use 3 combination forms, and laser receiver altitude mixture control scope can be from 10mm to 60mm, can be applied to different aperture sizes, improves laser centering appearance application range, is applicable to the part detection of more models.

4. The angle of the tool can be adjusted in the bearing hole, the measuring points can be evenly distributed in 360 degrees, the measuring precision of the straightness and the position deviation of the bearing hole is improved, and the tool can be used for detecting other parameters such as coaxiality and parallelism.

5. The angle of adjustment only need promote the frock can, need not to take out the frock and place again, convenient operation is swift, has effectively improved detection efficiency.

The utility model provides a frock is measured to diesel engine frame main bearing hole straightness accuracy, use the place for the production and processing scene, for the ease of accomodating and carrying, base part, connecting rod stand and altitude mixture control support need the on-the-spot installation, clean base and the contact surface of part after the installation is accomplished, disassemble the frock after the detection achievement and place.

Example 2

The embodiment realizes a method for measuring the straightness of a main bearing hole of a diesel engine frame. In this embodiment, the tool for measuring the straightness of the main bearing hole of the diesel engine frame described in embodiment 1 is used in the method for measuring the straightness of the main bearing hole of the diesel engine frame.

Fig. 5 is a schematic diagram of the position of a main bearing hole of a diesel engine frame. As shown in figure 5, the geometric position relationship of main bearing holes of a frame of a diesel engine of a certain model has the aperture of 240mm, 9 holes in total, the distance between every two holes is 400mm, the total span is 4000mm, and the required straightness is 0.1mm.

FIG. 6 is a schematic view of the installation of a laser transmitter for measuring the straightness of a main bearing hole of a diesel engine frame. FIG. 7 is a schematic view of laser emission for measuring the straightness of a main bearing hole of a diesel engine frame. As shown in fig. 6 and 7, in the method for measuring the straightness of the main bearing hole of the diesel engine frame according to the embodiment, the laser centering device transmitter is installed on the outer end surface of the main bearing hole of the first gear of the diesel engine frame, the laser transmitter is adjusted to the center position of the hole, the laser transmitting device is parallel to the main bearing hole after the installation is completed, and it is ensured that the laser receiver receives the laser transmitting signal from the first gear to the last gear Kong Douneng.

FIG. 8 is a schematic view of the installation of a laser receiver for measuring the straightness of a main bearing hole of a diesel engine frame. As shown in fig. 8, in the method for measuring the straightness of the main bearing hole of the diesel engine frame in the embodiment, the tool for measuring the straightness of the main bearing hole of the diesel engine frame in the embodiment 1 is placed in a first bearing hole rail, and the height of the target center of the laser receiver is adjusted, so that the laser ray and the receiver are located at the same height and then locked. The straightness measuring tool angle of the main bearing hole of the diesel engine frame in the embodiment 1 is adjusted to the horizontal direction until the displayed angle is 0 degree, and the position is set to be a zero position. Then the laser receiver is placed at the last gear of the bearing gear to be measured, the angles of the laser receiver in the vertical direction and the horizontal direction are adjusted to enable the difference value between the vertical direction and the horizontal direction to be within the range of 0-0.01 mm, then the receiver is placed back to the first gear, whether the error between the vertical direction and the horizontal direction is zero or not is confirmed, if the error is not zero, the last gear is placed back to perform a retest until the head and the tail are zero. And finally, sequentially installing the laser receiver into the middle 9-grade bearing hole, recording the coordinate values of the laser receiver, fitting the 9-grade bearing hole coordinate values into a curve after the operations are finished, and calculating the straightness data of the main bearing hole by adopting a minimum containment region method (namely the distance between two parallel lines of the actually measured curve of the 9-grade bearing hole is minimum).

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the principles of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides a frock is measured to multispeed dead eye straightness accuracy which characterized in that: comprises a magnetic base, a base bracket, an extension bar and a height adjusting bracket; the magnetic base is a magnetic high-precision cylinder and is used for adsorbing and contacting a bearing hole during straightness measurement; the base support is fixedly connected with the magnetic base along a first direction and fixedly connected with the lengthening rod along a second direction, and the first direction is vertical to the second direction; the base bracket is provided with an installation limiting surface opposite to the first direction, and the installation limiting surface is used for contacting the end surface of the bearing hole and fixing the position of the base bracket in the horizontal direction during straightness measurement; the height adjusting bracket is used for fixedly mounting a laser receiver during straightness measurement; the height adjusting support can freely slide on the extension bar and is used for adjusting the height of the laser receiver to a proper position and fixedly connecting the height adjusting support and the extension bar during straightness measurement.

2. The multi-gear bearing hole linearity measuring tool according to claim 1, characterized in that: the connecting bolt is also included; the magnetic base and the base support are fixedly connected into a whole through the connecting bolt.

3. The tool for measuring the straightness of the multi-gear bearing hole according to claim 1, wherein: the magnetic base comprises a first side magnetic base and a second side magnetic base; the first side magnetic base or the second side magnetic base is composed of two cylinders with the same diameter and a magnetic sleeve, and the magnetic sleeve is located between the two cylinders.

4. The multi-gear bearing hole linearity measuring tool according to claim 3, characterized in that: the extension bar comprises cylindrical extension bars on two sides; the two side cylindrical lengthening rods are independently used as one cylindrical lengthening rod, or the two cylindrical lengthening rods are combined for use; when the combined type screw bolt is used, the two cylindrical extension bars are fixedly connected in a screw bolt-to-screw hole mode.

5. The multi-gear bearing hole linearity measuring tool according to claim 4, characterized in that: the height adjusting bracket comprises a bracket main body, two fastening screws and two locking screws; the two fastening screws are used for mounting the laser receiver on the bracket main body; the two locking screws are used for locking the bracket main body to the cylindrical extension bars on the two sides.

6. The tool for measuring the straightness of the multi-gear bearing hole according to claim 5, wherein: the multi-gear bearing hole is a main bearing hole of a diesel engine frame, and the aperture is 240mm; the diameter of the cylinder of the first side magnetic base and the cylinder of the second side magnetic base are phi 18 +/-0.002 mm, the cylindricity is less than or equal to 0.002mm, the thickness is 7mm, the roughness is Ra0.1 mu m, and the cylindricity of the two cylinders on the same side is less than or equal to 0.002mm.

7. The tool for measuring the straightness of the multi-gear bearing hole according to claim 6, wherein: the cylinder lengthening rod is independently used by a 30mm or 50mm cylinder lengthening rod, or two 30mm or 50mm cylinder lengthening rods are used in combination; when the combined type screw driver is used in a combined mode, two 30mm or 50mm cylindrical extension bars are fixedly connected in a mode of M6 studs to M6 screw holes.

8. The tool of claim 7, wherein the tool comprises: according to the position of a threaded hole of the laser receiver, 2 phi 5mm through holes are arranged in the horizontal direction of the height adjusting support, and the laser receiver is installed on the height adjusting support through fastening screws; 2 through holes with the diameter of 10mm are arranged in the vertical direction of the height adjusting support, and when the height of the laser receiver is adjusted to a proper position, the height adjusting support is fixed on the lengthening rod by screwing the locking screw.

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